diff --git a/.editorconfig b/.editorconfig new file mode 100644 index 000000000..886a3fd4a --- /dev/null +++ b/.editorconfig @@ -0,0 +1,359 @@ +root = true + +############################################ +# Universal defaults +############################################ +[*] +charset = utf-8 +end_of_line = lf +indent_style = space +insert_final_newline = true +trim_trailing_whitespace = true + +############################################ +# Per file-type overrides +############################################ +[*.{csproj,vbproj,proj,projitems,shproj,targets,props}] +indent_size = 4 + +[Directory.{Build,Packages}.{props,targets}] +indent_size = 2 + +[*.{xml,config,nuspec,resx,ruleset}] +indent_size = 2 + +[*.{json,yml,yaml}] +indent_size = 2 + +[*.{md,markdown}] +indent_size = 2 +trim_trailing_whitespace = false + +[*.sh] +end_of_line = lf + +[*.{cmd,bat}] +end_of_line = crlf + +############################################ +# C# files +############################################ +[*.cs] + +#### Core EditorConfig Options #### + +# Indentation and spacing +indent_size = 4 +tab_width = 4 + +#### .NET Coding Conventions #### + +# Organize usings +dotnet_separate_import_directive_groups = false +dotnet_sort_system_directives_first = true +file_header_template = unset + +# this. and Me. preferences +dotnet_style_qualification_for_event = false:warning +dotnet_style_qualification_for_field = false:warning +dotnet_style_qualification_for_method = false:warning +dotnet_style_qualification_for_property = false:warning + +# Language keywords vs BCL types preferences +dotnet_style_predefined_type_for_locals_parameters_members = true:warning +dotnet_style_predefined_type_for_member_access = true:warning + +# Parentheses preferences +dotnet_style_parentheses_in_arithmetic_binary_operators = always_for_clarity:warning +dotnet_style_parentheses_in_other_binary_operators = always_for_clarity:warning +dotnet_style_parentheses_in_other_operators = never_if_unnecessary:warning +dotnet_style_parentheses_in_relational_binary_operators = always_for_clarity:warning + +# Modifier preferences +dotnet_style_require_accessibility_modifiers = for_non_interface_members:warning + +# Expression-level preferences +dotnet_style_coalesce_expression = true:warning +dotnet_style_collection_initializer = true:warning +dotnet_style_explicit_tuple_names = true:warning +# Codebase uses a flat public-API namespace (e.g. ServiceConnect.Interfaces.*) regardless of folder +# structure; folders are for navigation, not architectural boundaries. Disable IDE0130. +dotnet_style_namespace_match_folder = false:silent +dotnet_style_null_propagation = true:warning +dotnet_style_object_initializer = true:warning +dotnet_style_operator_placement_when_wrapping = beginning_of_line +# IDE0032 (prefer auto-properties): disabled because the C# 13 `field` keyword is the +# Roslyn-suggested fix and is unavailable under net8.0 (pinned to C# 12). Multi-target +# projects in this repo would need per-file `#pragma warning disable IDE0032` for every +# explicit backing field that has custom getter/setter logic. +dotnet_style_prefer_auto_properties = true:silent +dotnet_style_prefer_collection_expression = when_types_loosely_match:warning +dotnet_style_prefer_compound_assignment = true:warning +dotnet_style_prefer_conditional_expression_over_assignment = true:suggestion +dotnet_style_prefer_conditional_expression_over_return = true:suggestion +dotnet_style_prefer_foreach_explicit_cast_in_source = when_strongly_typed +dotnet_style_prefer_inferred_anonymous_type_member_names = true:warning +dotnet_style_prefer_inferred_tuple_names = true:warning +dotnet_style_prefer_is_null_check_over_reference_equality_method = true:warning +dotnet_style_prefer_non_hidden_explicit_cast_in_source = true:warning +dotnet_style_prefer_simplified_boolean_expressions = true:warning +dotnet_style_prefer_simplified_interpolation = true:warning +dotnet_prefer_system_hash_code = true:warning + +# Field preferences +dotnet_style_readonly_field = true:warning + +# Parameter preferences — public API parameters often exist for factory/interface +# compatibility even when unused internally; restrict the rule to non-public surface. +dotnet_code_quality_unused_parameters = non_public:warning + +# Suppression preferences +dotnet_remove_unnecessary_suppression_exclusions = none + +# New line preferences (no auto-fixer; kept at suggestion to avoid blocking the build on cosmetic noise) +dotnet_style_allow_multiple_blank_lines_experimental = false:suggestion +dotnet_style_allow_statement_immediately_after_block_experimental = false:suggestion + +#### C# Coding Conventions #### + +# var preferences — codebase uses var when the type is apparent on the right-hand side +csharp_style_var_elsewhere = false:silent +csharp_style_var_for_built_in_types = false:silent +csharp_style_var_when_type_is_apparent = true:suggestion + +# Expression-bodied members — subjective; left at silent +csharp_style_expression_bodied_accessors = true:silent +csharp_style_expression_bodied_constructors = false:silent +csharp_style_expression_bodied_indexers = true:silent +csharp_style_expression_bodied_lambdas = true:silent +csharp_style_expression_bodied_local_functions = false:silent +csharp_style_expression_bodied_methods = false:silent +csharp_style_expression_bodied_operators = false:silent +csharp_style_expression_bodied_properties = true:silent + +# Pattern matching preferences +csharp_style_pattern_matching_over_as_with_null_check = true:warning +csharp_style_pattern_matching_over_is_with_cast_check = true:warning +csharp_style_prefer_extended_property_pattern = true:warning +csharp_style_prefer_not_pattern = true:warning +csharp_style_prefer_pattern_matching = true:warning +csharp_style_prefer_switch_expression = true:warning + +# Null-checking preferences +csharp_style_conditional_delegate_call = true:warning + +# Modifier preferences +csharp_prefer_static_local_function = true:warning +csharp_preferred_modifier_order = public,private,protected,internal,file,static,extern,new,virtual,abstract,sealed,override,readonly,unsafe,required,volatile,async:warning +csharp_style_prefer_readonly_struct = true:warning +csharp_style_prefer_readonly_struct_member = true:warning + +# Code-block preferences +csharp_prefer_braces = true:warning +csharp_prefer_simple_using_statement = true:warning +csharp_style_namespace_declarations = file_scoped:warning +csharp_style_prefer_method_group_conversion = true:warning +csharp_style_prefer_primary_constructors = true:warning +csharp_style_prefer_top_level_statements = true:silent + +# Expression-level preferences +csharp_prefer_simple_default_expression = true:warning +csharp_style_deconstructed_variable_declaration = true:warning +csharp_style_implicit_object_creation_when_type_is_apparent = true:warning +csharp_style_inlined_variable_declaration = true:warning +csharp_style_prefer_index_operator = true:warning +csharp_style_prefer_local_over_anonymous_function = true:warning +csharp_style_prefer_null_check_over_type_check = true:warning +csharp_style_prefer_range_operator = true:warning +csharp_style_prefer_tuple_swap = true:warning +csharp_style_prefer_utf8_string_literals = true:warning +csharp_style_throw_expression = true:warning +csharp_style_unused_value_assignment_preference = discard_variable:warning +csharp_style_unused_value_expression_statement_preference = discard_variable:silent + +# 'using' directive preferences +csharp_using_directive_placement = outside_namespace:warning + +# New line preferences (whitespace polish — keep at suggestion to avoid blocking builds on cosmetic noise) +csharp_style_allow_blank_line_after_colon_in_constructor_initializer_experimental = true:silent +csharp_style_allow_blank_line_after_token_in_arrow_expression_clause_experimental = true:silent +csharp_style_allow_blank_line_after_token_in_conditional_expression_experimental = true:silent +csharp_style_allow_blank_lines_between_consecutive_braces_experimental = false:suggestion +csharp_style_allow_embedded_statements_on_same_line_experimental = false:suggestion + +#### C# Formatting Rules #### + +# New line preferences +csharp_new_line_before_catch = true +csharp_new_line_before_else = true +csharp_new_line_before_finally = true +csharp_new_line_before_members_in_anonymous_types = true +csharp_new_line_before_members_in_object_initializers = true +csharp_new_line_before_open_brace = all +csharp_new_line_between_query_expression_clauses = true + +# Indentation preferences +csharp_indent_block_contents = true +csharp_indent_braces = false +csharp_indent_case_contents = true +csharp_indent_case_contents_when_block = true +csharp_indent_labels = one_less_than_current +csharp_indent_switch_labels = true + +# Space preferences +csharp_space_after_cast = false +csharp_space_after_colon_in_inheritance_clause = true +csharp_space_after_comma = true +csharp_space_after_dot = false +csharp_space_after_keywords_in_control_flow_statements = true +csharp_space_after_semicolon_in_for_statement = true +csharp_space_around_binary_operators = before_and_after +csharp_space_around_declaration_statements = false +csharp_space_before_colon_in_inheritance_clause = true +csharp_space_before_comma = false +csharp_space_before_dot = false +csharp_space_before_open_square_brackets = false +csharp_space_before_semicolon_in_for_statement = false +csharp_space_between_empty_square_brackets = false +csharp_space_between_method_call_empty_parameter_list_parentheses = false +csharp_space_between_method_call_name_and_opening_parenthesis = false +csharp_space_between_method_call_parameter_list_parentheses = false +csharp_space_between_method_declaration_empty_parameter_list_parentheses = false +csharp_space_between_method_declaration_name_and_open_parenthesis = false +csharp_space_between_method_declaration_parameter_list_parentheses = false +csharp_space_between_parentheses = false +csharp_space_between_square_brackets = false + +# Wrapping preferences +csharp_preserve_single_line_blocks = true +csharp_preserve_single_line_statements = true + +#### Naming styles #### + +# Symbol specifications + +dotnet_naming_symbols.interfaces.applicable_kinds = interface +dotnet_naming_symbols.interfaces.applicable_accessibilities = * +dotnet_naming_symbols.interfaces.required_modifiers = + +dotnet_naming_symbols.types.applicable_kinds = class, struct, interface, enum, delegate +dotnet_naming_symbols.types.applicable_accessibilities = * +dotnet_naming_symbols.types.required_modifiers = + +dotnet_naming_symbols.non_field_members.applicable_kinds = property, event, method +dotnet_naming_symbols.non_field_members.applicable_accessibilities = * +dotnet_naming_symbols.non_field_members.required_modifiers = + +dotnet_naming_symbols.private_fields.applicable_kinds = field +dotnet_naming_symbols.private_fields.applicable_accessibilities = private, private_protected +dotnet_naming_symbols.private_fields.required_modifiers = + +dotnet_naming_symbols.private_static_readonly_fields.applicable_kinds = field +dotnet_naming_symbols.private_static_readonly_fields.applicable_accessibilities = private, private_protected +dotnet_naming_symbols.private_static_readonly_fields.required_modifiers = static, readonly + +dotnet_naming_symbols.private_const_fields.applicable_kinds = field +dotnet_naming_symbols.private_const_fields.applicable_accessibilities = private, private_protected +dotnet_naming_symbols.private_const_fields.required_modifiers = const + +dotnet_naming_symbols.constants.applicable_kinds = field, local +dotnet_naming_symbols.constants.applicable_accessibilities = public, internal, protected, protected_internal +dotnet_naming_symbols.constants.required_modifiers = const + +dotnet_naming_symbols.type_parameters.applicable_kinds = type_parameter +dotnet_naming_symbols.type_parameters.applicable_accessibilities = * +dotnet_naming_symbols.type_parameters.required_modifiers = + +# Naming styles + +dotnet_naming_style.pascal_case.capitalization = pascal_case + +dotnet_naming_style.camel_case.capitalization = camel_case + +dotnet_naming_style.begins_with_i.required_prefix = I +dotnet_naming_style.begins_with_i.capitalization = pascal_case + +dotnet_naming_style.begins_with_t.required_prefix = T +dotnet_naming_style.begins_with_t.capitalization = pascal_case + +dotnet_naming_style.underscore_camel_case.required_prefix = _ +dotnet_naming_style.underscore_camel_case.capitalization = camel_case + +# Naming rules + +dotnet_naming_rule.interfaces_should_be_begins_with_i.severity = warning +dotnet_naming_rule.interfaces_should_be_begins_with_i.symbols = interfaces +dotnet_naming_rule.interfaces_should_be_begins_with_i.style = begins_with_i + +dotnet_naming_rule.types_should_be_pascal_case.severity = warning +dotnet_naming_rule.types_should_be_pascal_case.symbols = types +dotnet_naming_rule.types_should_be_pascal_case.style = pascal_case + +dotnet_naming_rule.non_field_members_should_be_pascal_case.severity = warning +dotnet_naming_rule.non_field_members_should_be_pascal_case.symbols = non_field_members +dotnet_naming_rule.non_field_members_should_be_pascal_case.style = pascal_case + +dotnet_naming_rule.constants_should_be_pascal_case.severity = warning +dotnet_naming_rule.constants_should_be_pascal_case.symbols = constants +dotnet_naming_rule.constants_should_be_pascal_case.style = pascal_case + +dotnet_naming_rule.private_const_fields_should_be_pascal_case.severity = warning +dotnet_naming_rule.private_const_fields_should_be_pascal_case.symbols = private_const_fields +dotnet_naming_rule.private_const_fields_should_be_pascal_case.style = pascal_case + +dotnet_naming_rule.private_static_readonly_fields_should_be_pascal_case.severity = warning +dotnet_naming_rule.private_static_readonly_fields_should_be_pascal_case.symbols = private_static_readonly_fields +dotnet_naming_rule.private_static_readonly_fields_should_be_pascal_case.style = pascal_case + +dotnet_naming_rule.private_fields_should_be_underscore_camel.severity = warning +dotnet_naming_rule.private_fields_should_be_underscore_camel.symbols = private_fields +dotnet_naming_rule.private_fields_should_be_underscore_camel.style = underscore_camel_case + +dotnet_naming_rule.type_parameters_should_be_begins_with_t.severity = warning +dotnet_naming_rule.type_parameters_should_be_begins_with_t.symbols = type_parameters +dotnet_naming_rule.type_parameters_should_be_begins_with_t.style = begins_with_t + +# Microsoft.VisualStudio.Threading.Analyzers (VSTHRDxxx) — correctness rules left at defaults. +# VSTHRD200 (Async-suffix naming) silenced globally: bidirectional firing on internal +# delegate-typed helpers and xUnit test method names produces too many false positives. +# Public-API method naming is enforced by code review. +dotnet_diagnostic.VSTHRD200.severity = silent + +# Meziantou.Analyzer (MAxxxx) — correctness rules left at defaults; threshold rules tuned. +# MA0051 (method too long) raised to 200 lines: long methods in Bus.cs, RabbitMqConsumerHost.cs, +# AggregatorProcessor.cs, StreamProcessor.cs etc. are well-structured state machines whose +# linear flow is more readable as a single body than fragmented across helper methods. The +# default 60-line cap would force extractions that hurt readability without surfacing real +# complexity issues. +MA0051.maximum_lines_per_method = 200 +MA0051.maximum_statements_per_method = 100 + +# Test projects: silence threading-correctness rules that flag standard test patterns +# (sync Cancel on local CTS, await of mock-returned Tasks, fire-and-forget setup, etc.). +# Style/cleanliness rules also relaxed for tests: multiple message/fixture types per file, +# concrete Dictionary literals in arrange blocks, and string.Contains for assertion text +# are idiomatic xUnit and noisy when held to library standards. ConfigureAwait is also +# unnecessary in xUnit (no SyncContext). +[**/*Tests/**.cs] +dotnet_diagnostic.VSTHRD003.severity = silent +dotnet_diagnostic.VSTHRD103.severity = silent +dotnet_diagnostic.VSTHRD105.severity = silent +dotnet_diagnostic.VSTHRD110.severity = silent +dotnet_diagnostic.MA0002.severity = silent +dotnet_diagnostic.MA0004.severity = silent +dotnet_diagnostic.MA0006.severity = silent +dotnet_diagnostic.MA0011.severity = silent +dotnet_diagnostic.MA0015.severity = silent +dotnet_diagnostic.MA0016.severity = silent +dotnet_diagnostic.MA0025.severity = silent +dotnet_diagnostic.MA0047.severity = silent +dotnet_diagnostic.MA0048.severity = silent +dotnet_diagnostic.MA0051.severity = silent +dotnet_diagnostic.MA0061.severity = silent +dotnet_diagnostic.MA0069.severity = silent +dotnet_diagnostic.MA0074.severity = silent +dotnet_diagnostic.MA0091.severity = silent +dotnet_diagnostic.MA0099.severity = silent +dotnet_diagnostic.MA0132.severity = silent +dotnet_diagnostic.MA0134.severity = silent +dotnet_diagnostic.MA0158.severity = silent diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml new file mode 100644 index 000000000..ce3a85c61 --- /dev/null +++ b/.github/workflows/ci.yml @@ -0,0 +1,136 @@ +name: CI + +on: + push: + branches: ['**'] + pull_request: + branches: ['**'] + workflow_dispatch: + +permissions: + contents: read + +# A new push to a PR / branch cancels the previous in-flight run for the same ref. +# Saves CI minutes during rapid iteration; the most recent commit is the one that matters. +concurrency: + group: ci-${{ github.workflow }}-${{ github.ref }} + cancel-in-progress: true + +env: + DOTNET_NOLOGO: true + DOTNET_CLI_TELEMETRY_OPTOUT: 1 + DOTNET_SKIP_FIRST_TIME_EXPERIENCE: 1 + # Deterministic CI builds — combined with the SourceLink + ContinuousIntegrationBuild + # properties set in src/Directory.Build.props, ensures the produced binaries embed + # repo-relative source paths and are byte-reproducible. + ContinuousIntegrationBuild: true + +jobs: + build-and-test: + name: Build + unit tests (${{ matrix.os }}) + runs-on: ${{ matrix.os }} + strategy: + fail-fast: false + matrix: + os: [ubuntu-latest, windows-latest] + steps: + - name: Checkout + uses: actions/checkout@v4 + + - name: Setup .NET + uses: actions/setup-dotnet@v4 + with: + dotnet-version: | + 8.0.x + 10.0.x + + - name: Restore + working-directory: src + run: dotnet restore ServiceConnect.slnx + + - name: Build + working-directory: src + run: dotnet build ServiceConnect.slnx --configuration Release --no-restore + + - name: Unit tests + working-directory: src + run: dotnet test ServiceConnect.UnitTests/ServiceConnect.UnitTests.csproj --configuration Release --no-build --logger "trx;LogFileName=unittests.trx" + + - name: Upload test results + if: always() + uses: actions/upload-artifact@v4 + with: + name: unit-test-results-${{ matrix.os }} + path: src/**/TestResults/*.trx + if-no-files-found: ignore + + e2e: + name: End-to-end tests (Linux) + runs-on: ubuntu-latest + # Testcontainers spins up RabbitMQ + MongoDB; needs a working Docker daemon. + # ubuntu-latest runners have Docker pre-installed, so no setup step is required. + steps: + - name: Checkout + uses: actions/checkout@v4 + + - name: Setup .NET + uses: actions/setup-dotnet@v4 + with: + dotnet-version: | + 8.0.x + 10.0.x + + - name: Restore + working-directory: src + run: dotnet restore ServiceConnect.slnx + + - name: Build + working-directory: src + run: dotnet build ServiceConnect.slnx --configuration Release --no-restore + + - name: E2E tests + working-directory: src + run: dotnet test ServiceConnect.EndToEndTests/ServiceConnect.EndToEndTests.csproj --configuration Release --no-build --logger "trx;LogFileName=e2e.trx" + + - name: Upload test results + if: always() + uses: actions/upload-artifact@v4 + with: + name: e2e-test-results + path: src/**/TestResults/*.trx + if-no-files-found: ignore + + pack-validate: + name: Pack validation (dry-run) + runs-on: ubuntu-latest + steps: + - name: Checkout + uses: actions/checkout@v4 + + - name: Setup .NET + uses: actions/setup-dotnet@v4 + with: + dotnet-version: | + 8.0.x + 10.0.x + + - name: Restore + working-directory: src + run: dotnet restore ServiceConnect.slnx + + - name: Pack + working-directory: src + run: dotnet pack ServiceConnect.slnx --configuration Release --no-restore --output ../artifacts + + - name: List produced packages + run: ls -la artifacts/ + + - name: Upload artifacts + uses: actions/upload-artifact@v4 + with: + name: nupkgs + path: | + artifacts/*.nupkg + artifacts/*.snupkg + if-no-files-found: error + retention-days: 14 diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml new file mode 100644 index 000000000..a7e15e2c2 --- /dev/null +++ b/.github/workflows/docs.yml @@ -0,0 +1,60 @@ +name: Build and deploy docs site + +on: + push: + branches: [master] + paths: + - 'website/**' + - '.github/workflows/docs.yml' + workflow_dispatch: + +permissions: + contents: read + pages: write + id-token: write + +concurrency: + group: pages + cancel-in-progress: false + +jobs: + build: + runs-on: ubuntu-latest + steps: + - name: Checkout + uses: actions/checkout@v4 + + - name: Setup Node.js + uses: actions/setup-node@v4 + with: + node-version: '22' + cache: 'npm' + cache-dependency-path: website/package-lock.json + + - name: Install website dependencies + working-directory: website + run: npm ci + + - name: Build website (Astro + Starlight) + working-directory: website + run: npm run build + + - name: Setup Pages + uses: actions/configure-pages@v5 + + - name: Upload Pages artifact + uses: actions/upload-pages-artifact@v3 + with: + path: website/dist + + deploy: + needs: build + if: github.ref == 'refs/heads/master' + runs-on: ubuntu-latest + environment: + name: github-pages + url: ${{ steps.deployment.outputs.page_url }} + steps: + - name: Deploy to GitHub Pages + id: deployment + uses: actions/deploy-pages@v4 diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml new file mode 100644 index 000000000..0e0780b34 --- /dev/null +++ b/.github/workflows/release.yml @@ -0,0 +1,144 @@ +name: Release to NuGet + +# Triggered on a `v*` tag push (e.g. `v7.0.0`). The tag value drives the package Version +# property — release the same source tree against a new tag by retagging, not by editing +# csprojs. The "Verify tag matches Version property" step blocks a mismatched cut. + +on: + push: + tags: + - 'v*' + workflow_dispatch: + inputs: + version: + description: 'Version override (without leading v). Used only for manual dispatch; tag pushes use the tag value.' + required: false + +permissions: + contents: read + +env: + DOTNET_NOLOGO: true + DOTNET_CLI_TELEMETRY_OPTOUT: 1 + DOTNET_SKIP_FIRST_TIME_EXPERIENCE: 1 + ContinuousIntegrationBuild: true + +jobs: + release: + name: Pack + push + runs-on: ubuntu-latest + environment: + name: nuget + steps: + - name: Checkout + uses: actions/checkout@v4 + with: + # Full history so the release guard can test whether the tagged commit + # is contained in origin/master; the ancestry walk needs the commit + # graph, not just the tag tip a shallow clone would provide. + fetch-depth: 0 + + # Releases are cut from master only. A v* tag (or a manual dispatch ref) can + # point at any commit, so gate the publish on the tagged commit being reachable + # from origin/master: a tag pushed on a feature branch fails here, before + # anything is built or pushed to NuGet.org. + - name: Verify tag is on master + run: | + git fetch origin master --quiet + if ! git merge-base --is-ancestor "$GITHUB_SHA" origin/master; then + echo "::error::Tag ${GITHUB_REF#refs/tags/} ($GITHUB_SHA) is not contained in origin/master; refusing to release." + exit 1 + fi + echo "Tag commit $GITHUB_SHA is contained in origin/master — proceeding." + + - name: Setup .NET + uses: actions/setup-dotnet@v4 + with: + dotnet-version: | + 8.0.x + 10.0.x + + - name: Resolve version from tag + id: version + run: | + if [ -n "${{ inputs.version }}" ]; then + VERSION="${{ inputs.version }}" + else + # github.ref is "refs/tags/v7.0.0"; strip the prefix. + VERSION="${GITHUB_REF#refs/tags/v}" + fi + echo "version=$VERSION" >> "$GITHUB_OUTPUT" + echo "Resolved version: $VERSION" + + # The package version comes from the tag (passed to build/pack as -p:Version + # below), so this step only sanity-checks that the tag's BASE version matches + # the declared in Directory.Build.props. "Base" is the tag minus any + # SemVer pre-release suffix, so one declared base (e.g. 7.1.0) covers a whole + # cut: v7.1.0-beta.1, v7.1.0-rc.1, then v7.1.0 — no props edit between + # pre-releases. Bump only when moving to the next base version. + - name: Verify tag matches csproj Version property + working-directory: src + run: | + set -e + DECLARED=$(grep -oP '\K[^<]+' Directory.Build.props | head -1) + TAGVER="${{ steps.version.outputs.version }}" + BASE="${TAGVER%%-*}" + if [ "$DECLARED" != "$BASE" ]; then + echo "ERROR: Tag base version '$BASE' (from '$TAGVER') does not match Directory.Build.props '$DECLARED'." + echo "Bump src/Directory.Build.props and retag, or correct the tag. Pre-release suffixes (e.g. -rc.1) are allowed and do not need a props change." + exit 1 + fi + + - name: Restore + working-directory: src + run: dotnet restore ServiceConnect.slnx + + - name: Build + working-directory: src + run: dotnet build ServiceConnect.slnx --configuration Release --no-restore -p:Version=${{ steps.version.outputs.version }} + + # Re-run the full test suite against the exact tagged commit before pushing to NuGet.org. + # CI already gates merges to master, but a tag can point at any commit and NuGet packages + # cannot be unpublished — only delisted — so a green test run here is the last line of defence. + - name: Unit tests + working-directory: src + run: dotnet test ServiceConnect.UnitTests/ServiceConnect.UnitTests.csproj --configuration Release --no-build --logger "trx;LogFileName=unittests.trx" + + - name: E2E tests + working-directory: src + run: dotnet test ServiceConnect.EndToEndTests/ServiceConnect.EndToEndTests.csproj --configuration Release --no-build --logger "trx;LogFileName=e2e.trx" + + - name: Upload test results + if: always() + uses: actions/upload-artifact@v4 + with: + name: release-test-results-${{ steps.version.outputs.version }} + path: src/**/TestResults/*.trx + if-no-files-found: ignore + retention-days: 90 + + - name: Pack + working-directory: src + run: dotnet pack ServiceConnect.slnx --configuration Release --no-build -p:Version=${{ steps.version.outputs.version }} --output ../artifacts + + - name: List produced packages + run: ls -la artifacts/ + + - name: Upload artifacts (audit trail) + uses: actions/upload-artifact@v4 + with: + name: nupkgs-${{ steps.version.outputs.version }} + path: | + artifacts/*.nupkg + artifacts/*.snupkg + if-no-files-found: error + retention-days: 90 + + - name: Push to NuGet.org + # --skip-duplicate so a re-run after a partial failure doesn't error on packages + # already pushed; NuGet.org treats a re-push of the same version as a conflict. + run: | + dotnet nuget push 'artifacts/*.nupkg' \ + --api-key "${{ secrets.NUGET_API_KEY }}" \ + --source https://api.nuget.org/v3/index.json \ + --skip-duplicate diff --git a/.gitignore b/.gitignore index bd963806f..8c6114595 100644 --- a/.gitignore +++ b/.gitignore @@ -18,6 +18,7 @@ bld/ # Visual Studio 2015/2017 cache/options directory .vs/ +.vscode/ # MSTest test Results [Tt]est[Rr]esult*/ @@ -175,3 +176,30 @@ UpgradeLog*.htm # Microsoft Fakes FakesAssemblies/ +.gitnexus +.worktrees/ + +# Claude Code settings +AGENTS.md +CLAUDE.md +.claude/ + +# Documentation site (Astro/Starlight) +website/dist/ +website/.astro/ + +# Brainstorming companion artifacts +.superpowers/ + +# Test runner output +**/TestResults/ +*.trx + +# Stress harness report output (regenerated on every run) +out/ +**/out/ + +# Working specs / plans authored during agent sessions (committed deliberately, +# not auto-staged from the working tree). Anchored to the repo root so the rule +# doesn't accidentally match website/src/content/docs/ and trap new doc pages. +/docs/ diff --git a/.travis.yml b/.travis.yml deleted file mode 100644 index 7a54bced6..000000000 --- a/.travis.yml +++ /dev/null @@ -1,6 +0,0 @@ -language: csharp -solution: src/ServiceConnect.sln -install: - - nuget # lets get version number - - nuget restore src/ServiceConnect.sln -Verbosity detailed - - nuget update src/ServiceConnect.sln -Verbosity detailed diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md new file mode 100644 index 000000000..dc9434002 --- /dev/null +++ b/CONTRIBUTING.md @@ -0,0 +1,232 @@ +# Contributing to ServiceConnect + +Thanks for your interest in contributing. ServiceConnect is a small, opinionated +async message bus over RabbitMQ for modern .NET. This guide covers how the project +is laid out, how to build and test it, the conventions we hold code to, and how +releases are cut. + +For consumer-facing usage, see the [README](README.md) and the +[documentation site](https://r-suite.github.io/ServiceConnect-CSharp/). + +## Before you start + +- For anything more than a trivial fix, open an issue first so we can agree on the + approach before you invest time. +- Bug reports are most useful with a minimal reproduction (a failing test or a small + console app against the `examples/` brokers is ideal). +- By contributing you agree your work is licensed under the project's + [MIT license](LICENSE.md). + +## Prerequisites + +- **.NET 8 and .NET 10 SDKs.** The libraries multi-target `net8.0;net10.0`, so both + are needed for a full build. Test projects target `net10.0` only. +- **Docker.** Required for the end-to-end tests and the stress harness — they spin up + real RabbitMQ and MongoDB containers via [Testcontainers](https://testcontainers.com/). +- **Node.js 22** — only if you're working on the documentation site under [`website/`](website). + +## Project layout + +The solution is [`src/ServiceConnect.slnx`](src/ServiceConnect.slnx). It follows a +clean-architecture layering where dependencies point inward toward the abstractions: + +| Project | Role | +| --- | --- | +| `ServiceConnect.Interfaces` | Public abstractions — `IBus`, message contracts, options, and the exception hierarchy. Depends on nothing but the BCL. | +| `ServiceConnect` | Core runtime — dispatch pipeline, handler discovery, process managers, aggregators, request/reply. Depends only on `Interfaces` + `Microsoft.Extensions.*` abstractions. | +| `ServiceConnect.Client.RabbitMQ` | RabbitMQ transport. | +| `ServiceConnect.Persistence.InMemory` / `ServiceConnect.Persistence.MongoDb` | Process-manager / aggregator / timeout persistence. | +| `ServiceConnect.Telemetry` | OpenTelemetry tracing (W3C `traceparent`, OTel messaging semconv). | +| `ServiceConnect.HealthChecks` | `Microsoft.Extensions.Diagnostics.HealthChecks` integration. | + +The concrete transport / persistence / feature modules reference **only** +`ServiceConnect.Interfaces` and the `ServiceConnect` core — never each other. +Keep it that way: new transports or persistence backends are self-contained packages +that depend inward, not sideways. + +Other top-level directories: + +- [`examples/`](examples) — one runnable console app per messaging pattern, each with a + `run.sh` and a `docker-compose.yml` for a local broker. New behaviour worth showing + off should come with (or extend) an example. +- [`examples/StressHarness`](examples/StressHarness) — soak / chaos harness driven by + [`verify-all.sh`](verify-all.sh). +- [`website/`](website) — the Astro + Starlight documentation site. + +## Building and testing + +From the repository root: + +```bash +# Restore + build the whole solution +dotnet build src/ServiceConnect.slnx -c Release + +# Unit tests (fast, fully mocked — no Docker needed) +dotnet test src/ServiceConnect.UnitTests/ServiceConnect.UnitTests.csproj -c Release + +# End-to-end tests (starts RabbitMQ + MongoDB via Testcontainers — Docker required) +dotnet test src/ServiceConnect.EndToEndTests/ServiceConnect.EndToEndTests.csproj -c Release +``` + +[`verify-all.sh`](verify-all.sh) is the full local gate and is what you should run +before opening a PR. It runs the unit tests, the E2E tests, and a soak + chaos run of +the stress harness, tearing down its Docker resources on exit: + +```bash +./verify-all.sh +# Skip stages with env flags while iterating, e.g.: +SKIP_HARNESS=1 SKIP_CHAOS=1 ./verify-all.sh +``` + +The repo's build/test scripts pass `-m:1` to cap MSBuild parallelism; on a +resource-constrained machine you may want to do the same for ad-hoc `dotnet` commands. + +`TreatWarningsAsErrors` is on for the whole solution, so **a warning fails the build** — +including analyzer diagnostics and missing XML doc comments on public members. A green +local build means the same checks CI runs have passed. + +## Coding conventions + +[`.editorconfig`](.editorconfig) is the source of truth for style and is enforced at +build time (`EnforceCodeStyleInBuild`). Run your editor's "format document" / `dotnet +format` before committing. The highlights below are the ones that trip people up. + +### Language & structure + +- **Multi-targeting:** code compiles under C# 12 for `net8.0` and C# 14 for `net10.0`. + Anything that uses newer language or BCL features (`System.Threading.Lock`, the + `field` keyword, …) must be guarded with `#if NET9_0_OR_GREATER` (or similar) and + compile cleanly under both targets. +- **File-scoped namespaces** (`namespace ServiceConnect;`). Namespaces follow the + public-API shape, not the folder layout — folders are for navigation only. +- **`sealed` by default.** Seal classes unless they're explicitly designed for + extension. +- **Primary constructors** where they read well; **`using` directives outside the + namespace**, `System.*` sorted first. +- **Nullable reference types are enabled** everywhere — annotate accordingly and guard + public entry points with `ArgumentNullException.ThrowIfNull(...)`. + +### Async + +- Every public async method takes a `CancellationToken cancellationToken = default` + (defaulted) and threads it through. +- Async methods carry the `Async` suffix. +- Library code uses `.ConfigureAwait(false)` consistently on every `await`. (Test code + doesn't need it — xUnit has no synchronization context.) + +### Naming + +- Interfaces are `I`-prefixed, type parameters `T`-prefixed, constants and + `private static readonly` / `const` fields are `PascalCase`, and other private + fields are `_camelCase`. + +### Logging, DI, exceptions, docs + +- **Logging** goes through `Microsoft.Extensions.Logging.ILogger` using + source-generated `[LoggerMessage]` methods, not interpolated `Log*` calls. +- **DI** is exposed through the `AddServiceConnect(...)` extension and the + `ServiceConnectBuilder` fluent API — register new components there rather than + expecting consumers to wire concrete types. +- **Exceptions** derive from the `ServiceConnectException` base (e.g. + `TransportException`, `PersistenceException`, `RequestTimeoutException`, + `OutgoingFiltersBlockedException`). Add a sealed, well-named subtype rather than + throwing bare `Exception`. +- **Public APIs are XML-documented.** Missing `` on a public member fails the + build. + +### Comments + +Comments describe the implementation: what the code does, the invariant it preserves, +the trade-off it expresses, the *why* behind a non-obvious choice. They must **not** +carry meta-references that rot — issue/ticket IDs, phase or work-stream labels, commit +hashes, or "fixed in X" framing. That history belongs in the commit message and PR +description; in-source comments should read as if the current shape was always the +design. + +## Tests + +- **xUnit** with **Moq** for mocking and plain `Assert.*` assertions (no Fluent + Assertions). +- Name tests `Subject_Condition_ExpectedResult`, e.g. + `PublishAsync_EnvelopeDoesNotContainMessageTypeKey`, + `SendToManyAsync_AllSucceed_NoException`. +- **Unit tests** mock all external dependencies and need no Docker. **E2E tests** use + Testcontainers and exercise a real broker + database over the wire. +- Use `FakeTimeProvider` (`Microsoft.Extensions.TimeProvider.Testing`) to control time — + **don't** use `Task.Delay` / `Thread.Sleep` to coordinate timing-sensitive tests. +- `ServiceConnect.SerializationCompatTests` guards wire-format backward compatibility + (Newtonsoft.Json ↔ System.Text.Json round-trips). If you touch serialization, run it + and don't break the corpus. +- New features need tests; bug fixes should come with a regression test that fails + before the fix. + +## Documentation + +User-facing docs live in [`website/`](website) (Astro + Starlight) and deploy to GitHub +Pages from `master`. If your change alters public API or behaviour, update the relevant +pages. Build the site locally with `npm ci && npm run build` in `website/`. + +## Commits and pull requests + +- **Branch from `master`.** CI runs on every branch and every PR, so push early to get + feedback. +- Follow **Conventional Commits** for messages — `type(scope): summary`, e.g. + `fix(rabbitmq): …`, `docs: …`, `ci: …`. Common types: `feat`, `fix`, `docs`, `test`, + `refactor`, `ci`, `chore`. Put ticket references and detailed rationale in the commit + body / PR description, not in code comments. +- Keep PRs focused. Make sure `./verify-all.sh` (or at least the relevant test + projects) and a Release build pass before requesting review. + +## Releasing (maintainers) + +Releases are cut from **`master` only** and driven entirely by a git tag. The base +version lives in [`src/Directory.Build.props`](src/Directory.Build.props) (``); +the tag drives the published package version, and pushing a `v*` tag triggers the +[release workflow](.github/workflows/release.yml). + +Two guards run before anything is built or pushed: + +- **On master** — the tagged commit must be reachable from `origin/master`, so tag + *after* your release commit is merged. +- **Base matches props** — the tag's base version (minus any pre-release suffix) must + equal ``; a mismatch fails the run. + +### Stable release + +1. Bump `` in `src/Directory.Build.props` (e.g. `7.1.0`), commit, and merge to + `master`. +2. Tag the merged commit and push the tag: + + ```bash + git checkout master && git pull + git tag -a v7.1.0 -m "Release 7.1.0" + git push origin v7.1.0 + ``` + +### Pre-release + +Pre-releases are also cut from `master`. A SemVer pre-release suffix (`-beta.1`, +`-rc.1`, …) shares the same base version, so no props change is needed between a +pre-release and its stable cut — bump `` only when moving to the next base: + +```bash +# is already 7.1.0 on master +git tag -a v7.1.0-rc.1 -m "7.1.0 RC1" && git push origin v7.1.0-rc.1 # pre-release +# ...validate, then promote the same base to stable: +git tag -a v7.1.0 -m "Release 7.1.0" && git push origin v7.1.0 # stable +``` + +NuGet flags any hyphenated version as a pre-release and hides it from default installs; +consumers opt in with `dotnet add package ServiceConnect --prerelease`. + +### Notes + +- **Push the tag explicitly** — a plain `git push` does not send tags, and avoid + `git push --tags` (it pushes every local tag). +- **Use dot-numeric suffixes** — `-rc.1`, `-rc.2`, `-rc.10` sort correctly; `-rc1` / + `-rc10` sort as strings (so `rc10` < `rc2`). +- **Versions are permanent** — NuGet packages can be delisted but not unpublished, so a + pushed tag's version is effectively final. The release push uses `--skip-duplicate`, + so re-running after a partial failure is safe. +- **Manual dispatch** — the workflow can also be run from *Actions → Release to NuGet* + with a `version` input; it's subject to the same two guards (run it from `master`). diff --git a/LICENSE.md b/LICENSE.md index 11dddd00e..e2c7adcff 100644 --- a/LICENSE.md +++ b/LICENSE.md @@ -1,278 +1,21 @@ - GNU GENERAL PUBLIC LICENSE - Version 2, June 1991 - - Copyright (C) 1989, 1991 Free Software Foundation, Inc. - 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - Everyone is permitted to copy and distribute verbatim copies - of this license document, but changing it is not allowed. - - Preamble - - The licenses for most software are designed to take away your -freedom to share and change it. By contrast, the GNU General Public -License is intended to guarantee your freedom to share and change free -software--to make sure the software is free for all its users. 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IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING -WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR -REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, -INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING -OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED -TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY -YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER -PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE -POSSIBILITY OF SUCH DAMAGES. +MIT License + +Copyright (c) 2015 Timothy Watson, Jakub Pachansky + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/README.md b/README.md index 7f10c8fe5..b90937f31 100644 --- a/README.md +++ b/README.md @@ -1,92 +1,150 @@ -[![Join the chat at https://gitter.im/R-Suite/ServiceConnect](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/R-Suite/ServiceConnect?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge) +# ServiceConnect -**_ServiceConnect 5.0.0 is available at [https://www.nuget.org/packages/ServiceConnect](https://www.nuget.org/packages/ServiceConnect/)_** -* **New in ServiceConnect 5.0.0** - - Async consumers - - Priority Queues support - - Bug Fixes +[![NuGet](https://img.shields.io/nuget/v/ServiceConnect.svg)](https://www.nuget.org/packages/ServiceConnect/) -ServiceConnect is a simple, easy to use asynchronous messaging framework for .NET. +Asynchronous messaging for .NET. Distributed systems, done cleanly. -## Features +ServiceConnect is a thin, opinionated bus over RabbitMQ. It gives you the well-known Enterprise Integration Patterns — pub/sub, point-to-point, request/reply, process managers, aggregators, routing slips — behind a small async API that plugs into `Microsoft.Extensions.DependencyInjection`. -* Support for many well-known Enterprise Integration Patterns - - Point to Point - - Publish/Subscribe - - Process Manager - - Recipient List - - Scatter Gather - - Routing Slip - - Message Aggregation - - Content-Based Router -* Streaming -* Retries -* Auditing -* .NET Core -* SSL Support -* Polymorphic message dispatch -* Multi-threaded consumers -* Intercept message-processing pipline with custom filters. See [Filters](https://github.com/R-Suite/ServiceConnect/tree/master/samples/Filters) sample application for a complete example. +**📖 Full docs: [r-suite.github.io/ServiceConnect-CSharp](https://r-suite.github.io/ServiceConnect-CSharp/)** -## Project Maturity -ServiceConnect (recently renamed from R.MessageBus) has been first released in May 2014. The current version is used by a number of high-profile financial applications in production environments. Public API is stable and no major changes are planned in the next version. +## Install +```bash +dotnet add package ServiceConnect +dotnet add package ServiceConnect.Client.RabbitMQ +``` -## Simple example - -In this example we simply send a message from one endpoint and consume the same message on another endpoint. -See [Point To Point](https://github.com/R-Suite/ServiceConnect-CSharp/tree/master/samples/PointToPoint) sample application for a complete example. +Optional extensions: -##### 1. Define your message +```bash +# Process-manager and aggregator persistence +dotnet add package ServiceConnect.Persistence.InMemory +dotnet add package ServiceConnect.Persistence.MongoDb -```YourMessage``` is a .Net class that inherits from -```ServiceConnect.Interfaces.Message``` base class +# Distributed tracing (W3C traceparent injection, OTel messaging semconv) +dotnet add package ServiceConnect.Telemetry -```c# -public class YourMessage : Message -{ - public YourMessage(Guid correlationId) : base(correlationId){} -} +# Liveness/readiness health checks +dotnet add package ServiceConnect.HealthChecks ``` -##### 2. Send your message +## Quick start -In the standard command line ```Main``` method we start the bus with ```var bus = Bus.Initialize();```. Calling initialize with no parameters will create an instance of the Bus with default configuration options. Next, we simply send ```YourMessage``` using ```bus.Send(new YourMessage(id), "YourConsumer");``` - where the first argument is an instance of ```YourMessage```, the second argument, "YourConsumer", is the receiving enpoint name. (We are going to configure "YourConsumer" next). +Define a message: -```c# -public class Program -{ - public static void Main() - { - var bus = Bus.Initialize(); +```csharp +using ServiceConnect.Interfaces; - bus.Send(new YourMessage(Guid.NewGuid()), "YourConsumer"); - } +public sealed class OrderPlaced(Guid correlationId) : Message(correlationId) +{ + public string OrderId { get; init; } = ""; } ``` -##### 3. Receive your message +Write a handler: -Again, we start the bus in the standard command line ```Main``` method. This time, however, with ```var bus = Bus.Initialize(config => config.SetEndPoint("YourConsumer"));```. Because the method initialize can also take a single lambda/action parameter for custom configuration, we explicitly set the name of the receiving endpoint to "YourConsumer". +```csharp +using ServiceConnect.Interfaces; -```c# -public class Program +public sealed class OrderPlacedHandler : IMessageHandler { - public static void Main() + public Task HandleAsync(OrderPlaced message, IConsumeContext context, CancellationToken cancellationToken = default) { - var bus = Bus.Initialize(config => config.SetEndPoint("YourConsumer")); + Console.WriteLine($"Received order {message.OrderId}"); + return Task.CompletedTask; } } ``` -Finally, we define a "handler" that will receive the message. The handler is a .NET class that implements ```ServiceConnect.Interfaces.IMessageHandler``` where the generic parameter ```T``` is the type of the message being consumed. +Wire up the bus: + +```csharp +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Interfaces; -```c# -public class YourMessageHandler : IMessageHandler +var services = new ServiceCollection(); +services.AddLogging(); + +services.AddServiceConnect(builder => { - public void Execute(YourMessage message) + builder.UseRabbitMQ(transport => { - Console.WriteLine("Received message - {0}", message.CorrelationId); - } -} + transport.Host = "localhost"; + transport.Username = "guest"; + transport.Password = "guest"; + // Local-dev plaintext: TransportConfiguration.SslEnabled defaults to true (AMQPS + // on 5671). The standard rabbitmq:3-management container exposes plaintext 5672, + // so disable SSL explicitly for the localhost path. Production deployments should + // leave SslEnabled at its true default and configure CertPath / ServerName. + transport.SslEnabled = false; + }); + + builder.ConfigureQueues(queues => queues.QueueName = "order-service"); +}); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); + +// Start consuming, then publish +await bus.StartConsumingAsync(); +await bus.PublishAsync(new OrderPlaced(Guid.NewGuid()) { OrderId = "ORD-001" }); ``` + +## Messaging patterns + +- **Publish/Subscribe** — broadcast events to every subscriber +- **Point-to-Point** — send commands to a specific endpoint +- **Request/Reply** — single-reply and multi-reply RPC +- **Competing Consumers** — scale out handlers across processes +- **Content-Based Routing** — dispatch by message type or content +- **Polymorphic Messages** — subscribe by base type and receive every derived message +- **Routing Slip** — sequential pipeline of endpoints +- **Scatter-Gather** — multicast with reply aggregation +- **Process Manager** — long-running, stateful workflows (sagas) +- **Aggregator** — accumulate related messages until complete +- **Streaming** — chunked delivery of large payloads +- **Filters & Middleware** — inspect, transform, or short-circuit the pipeline. Outgoing filters that return `FilterAction.Stop` throw `OutgoingFiltersBlockedException` so callers can distinguish a blocked send from a successful one. + +Each pattern has a conceptual guide and worked example in [the docs](https://r-suite.github.io/ServiceConnect-CSharp/learn/). + +## Examples + +Runnable console apps live in [`examples/`](examples), one per pattern: + +[PointToPoint](examples/PointToPoint) · [PublishSubscribe](examples/PublishSubscribe) · [RequestReply](examples/RequestReply) · [CompetingConsumers](examples/CompetingConsumers) · [ContentBasedRouting](examples/ContentBasedRouting) · [PolymorphicMessages](examples/PolymorphicMessages) · [RoutingSlip](examples/RoutingSlip) · [ScatterGather](examples/ScatterGather) · [Aggregator](examples/Aggregator) · [ProcessManager](examples/ProcessManager) · [Filters](examples/Filters) · [CustomFilterAndMiddleware](examples/CustomFilterAndMiddleware) · [Streaming](examples/Streaming) · [Telemetry](examples/Telemetry) + +Each example ships with a `run.sh` and a `docker-compose.yml` at `examples/docker-compose.yml` for a local RabbitMQ broker. + +## Supported runtimes + +ServiceConnect targets modern .NET only — by design. + +- **`net8.0`** — previous LTS. End of Microsoft support: **November 10, 2026**. +- **`net10.0`** — current LTS. End of Microsoft support: November 14, 2028. Used to opt into recent BCL features (`System.Threading.Lock`, the `field` keyword) on the hot paths; `net8.0` paths take guarded fallbacks. + +All published packages — `ServiceConnect`, `ServiceConnect.Interfaces`, `ServiceConnect.Client.RabbitMQ`, `ServiceConnect.Persistence.*`, `ServiceConnect.Telemetry`, and `ServiceConnect.HealthChecks` — multi-target both. + +We deliberately do **not** target `netstandard2.x`, `net6.0`, or `net7.0`: + +- The hot paths use BCL features that are awkward to polyfill cleanly. +- The remaining LTS surface (.NET 8 + .NET 10) covers every Microsoft runtime with active patch coverage at the time of writing. +- Consumers on .NET Framework or out-of-support .NET Core SKUs can pin earlier ServiceConnect releases that targeted those runtimes; we are not adding support back to the current line. + +If your scenario needs `netstandard2.1` (or you'd like to upstream the work), please open an issue. + +### When `net8.0` will be dropped + +.NET 8 reaches end of Microsoft support on **November 10, 2026**. ServiceConnect will drop the `net8.0` target framework in the first major version released after that date — current consumers on .NET 8 should plan their migration to .NET 10 LTS during the second half of 2026 or pin to a pre-drop ServiceConnect major. + +## Other requirements + +- RabbitMQ 3.7+ + +## Contributing + +See [CONTRIBUTING.md](CONTRIBUTING.md) for project layout, build/test instructions, coding conventions, and the release process. + +## License + +MIT — see [LICENSE.md](LICENSE.md). diff --git a/examples/Aggregator/Aggregator.sln b/examples/Aggregator/Aggregator.sln new file mode 100644 index 000000000..96d714bb9 --- /dev/null +++ b/examples/Aggregator/Aggregator.sln @@ -0,0 +1,84 @@ + +Microsoft Visual Studio Solution File, Format Version 12.00 +# Visual Studio Version 17 +VisualStudioVersion = 17.0.31903.59 +MinimumVisualStudioVersion = 10.0.40219.1 +Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{5C4B8929-EA3A-4C6D-A554-799FA4D2A261}" +EndProject 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b/examples/Aggregator/README.md @@ -0,0 +1,74 @@ +# Aggregator + +## Overview + +Two producers send telemetry slices to the same aggregator endpoint. The consumer uses `Aggregator` to wait for both slices, then emits one success line with the combined total. + +## Participants + +- `ServiceConnect.Examples.Aggregator.Consumer` +- `ServiceConnect.Examples.Aggregator.ProducerA` +- `ServiceConnect.Examples.Aggregator.ProducerB` + +## Message Flow + +```mermaid +sequenceDiagram + participant ProducerA + participant ProducerB + participant AggregatorConsumer + participant MongoDB + ProducerA->>AggregatorConsumer: TelemetrySlice(shared-id, ProducerA, 10) + AggregatorConsumer->>MongoDB: persist partial batch + ProducerB->>AggregatorConsumer: TelemetrySlice(shared-id, ProducerB, 15) + AggregatorConsumer->>MongoDB: load batch and clear persisted slices + AggregatorConsumer-->>AggregatorConsumer: emit combined total = 25 +``` + +## Prerequisites + +`docker compose -f ../docker-compose.yml up -d` + +## Run This Example + +`bash run.sh` + +The scripted runners use unique queue and MongoDB database names on each run so repeated smoke tests stay isolated. + +## Run Manually + +Start the consumer first, then run both producers with the same queue name and the same shared correlation id. The consumer also needs the matching MongoDB database name. + +```bash +SC_EXAMPLES_QUEUE_NAME=aggregator-consumer \ +SC_EXAMPLES_DATABASE_NAME=aggregator_consumer \ +dotnet run --project src/ServiceConnect.Examples.Aggregator.Consumer/ServiceConnect.Examples.Aggregator.Consumer.csproj & + +SC_EXAMPLES_CORRELATION_ID=11111111-1111-1111-1111-111111111111 \ +SC_EXAMPLES_QUEUE_NAME=aggregator-consumer \ +dotnet run --project src/ServiceConnect.Examples.Aggregator.ProducerA/ServiceConnect.Examples.Aggregator.ProducerA.csproj + +SC_EXAMPLES_CORRELATION_ID=11111111-1111-1111-1111-111111111111 \ +SC_EXAMPLES_QUEUE_NAME=aggregator-consumer \ +dotnet run --project src/ServiceConnect.Examples.Aggregator.ProducerB/ServiceConnect.Examples.Aggregator.ProducerB.csproj +``` + +## Expected Output + +`READY:aggregator-consumer` + +`SUCCESS:aggregator-producer-a:sent ProducerA/10` + +`SUCCESS:aggregator-producer-b:sent ProducerB/15` + +`SUCCESS:aggregator-consumer:combined total 25 from 2 slices` + +## What To Notice + +The consumer never handles a single slice immediately. Instead, the aggregator groups slices by `CorrelationId`, persists them in MongoDB, and flushes when the batch reaches 2 messages or the 10 second timeout elapses. + +## Contracts + +**Timer and snapshot safety.** The timeout timer is single-tracked under a per-aggregator lock, preventing double-fire when a flush and a timer expiry race. `GetSnapshotAsync` releases the lock during the clone step, so concurrent inserts can proceed during long snapshot operations without blocking on the aggregator mutex. + +**Flush policy is mandatory.** `Aggregator.BatchSize()` and `Aggregator.Timeout()` are abstract — every concrete aggregator must declare both. `BatchSize()` must return a positive integer; `Timeout()` must return a positive `TimeSpan` (not `TimeSpan.Zero`, not `Timeout.InfiniteTimeSpan`). The registry rejects out-of-range overrides at startup with `InvalidOperationException`. This example overrides `BatchSize()` to `2` and `Timeout()` to `TimeSpan.FromSeconds(10)`, so a partial batch flushes after 10 seconds when fewer than 2 slices have arrived. diff --git a/examples/Aggregator/run.ps1 b/examples/Aggregator/run.ps1 new file mode 100644 index 000000000..259ac595e --- /dev/null +++ b/examples/Aggregator/run.ps1 @@ -0,0 +1,98 @@ +$ErrorActionPreference = 'Stop' +$PSNativeCommandUseErrorActionPreference = $true + +. "$PSScriptRoot/../scripts/common.ps1" + +$consumerProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.Aggregator.Consumer/ServiceConnect.Examples.Aggregator.Consumer.csproj' +$producerAProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.Aggregator.ProducerA/ServiceConnect.Examples.Aggregator.ProducerA.csproj' +$producerBProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.Aggregator.ProducerB/ServiceConnect.Examples.Aggregator.ProducerB.csproj' +$OUTPUT_LOG = Join-Path $PSScriptRoot 'output.log' +$runId = [DateTimeOffset]::UtcNow.ToUnixTimeMilliseconds().ToString() + '-' + [Guid]::NewGuid().ToString('N') +$queueName = "aggregator-consumer-$runId" +$databaseName = "aggregator_consumer_$($runId.Replace('-', '_'))" +$correlationId = [Guid]::NewGuid().ToString() +$consumerProcess = $null +$producerAJob = $null +$producerBJob = $null + +function Wait-ForReady { + $timeout = 30 + $elapsed = 0 + + while ($elapsed -lt $timeout) { + if ((Test-Path $OUTPUT_LOG) -and + (Select-String -Path $OUTPUT_LOG -Pattern '^READY:aggregator-consumer$' -Quiet)) { + return $true + } + + Start-Sleep -Milliseconds 500 + $elapsed += 0.5 + } + + return $false +} + +function Wait-ForCompletion { + $timeout = 30 + $elapsed = 0 + + while ($elapsed -lt $timeout) { + if ((Test-Path $OUTPUT_LOG) -and + (Select-String -Path $OUTPUT_LOG -Pattern '^SUCCESS:aggregator-producer-a:sent ProducerA/10$' -Quiet) -and + (Select-String -Path $OUTPUT_LOG -Pattern '^SUCCESS:aggregator-producer-b:sent ProducerB/15$' -Quiet) -and + (Select-String -Path $OUTPUT_LOG -Pattern '^SUCCESS:aggregator-consumer:combined total 25 from 2 slices$' -Quiet)) { + return $true + } + + Start-Sleep -Milliseconds 500 + $elapsed += 0.5 + } + + return $false +} + +try { + Start-ExampleDependencies + '' | Set-Content -Path $OUTPUT_LOG + + $consumerProcess = Start-Process pwsh -ArgumentList @('-NoProfile', '-Command', "`$env:SC_EXAMPLES_QUEUE_NAME='$queueName'; `$env:SC_EXAMPLES_DATABASE_NAME='$databaseName'; dotnet run --project '$consumerProject' 2>&1 | Out-File -FilePath '$OUTPUT_LOG' -Append") -PassThru -NoNewWindow + + if (-not (Wait-ForReady)) { + throw 'Aggregator consumer did not become ready within 30 seconds' + } + + $producerAJob = Start-Job -ScriptBlock { + $env:SC_EXAMPLES_QUEUE_NAME = $using:queueName + $env:SC_EXAMPLES_CORRELATION_ID = $using:correlationId + dotnet run --project $using:producerAProject 2>&1 | Out-File -FilePath $using:OUTPUT_LOG -Append + } + + $producerBJob = Start-Job -ScriptBlock { + $env:SC_EXAMPLES_QUEUE_NAME = $using:queueName + $env:SC_EXAMPLES_CORRELATION_ID = $using:correlationId + dotnet run --project $using:producerBProject 2>&1 | Out-File -FilePath $using:OUTPUT_LOG -Append + } + + $producerAJob | Wait-Job | Remove-Job -Force + $producerAJob = $null + $producerBJob | Wait-Job | Remove-Job -Force + $producerBJob = $null + + if (-not (Wait-ForCompletion)) { + throw 'Aggregator run did not produce the combined total within 30 seconds' + } +} +finally { + if ($null -ne $producerAJob) { + Remove-Job -Job $producerAJob -Force -ErrorAction SilentlyContinue + } + + if ($null -ne $producerBJob) { + Remove-Job -Job $producerBJob -Force -ErrorAction SilentlyContinue + } + + if ($null -ne $consumerProcess -and -not $consumerProcess.HasExited) { + Stop-Process -Id $consumerProcess.Id -Force -ErrorAction SilentlyContinue + $consumerProcess.WaitForExit() + } +} diff --git a/examples/Aggregator/run.sh b/examples/Aggregator/run.sh new file mode 100755 index 000000000..0751b98b3 --- /dev/null +++ b/examples/Aggregator/run.sh @@ -0,0 +1,97 @@ +#!/usr/bin/env bash +set -euo pipefail + +SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)" +source "$SCRIPT_DIR/../scripts/common.sh" + +OUTPUT_LOG="$SCRIPT_DIR/output.log" +RUN_ID=$(date +%s%N) +QUEUE_NAME="aggregator-consumer-${RUN_ID}" +DATABASE_NAME="aggregator_consumer_${RUN_ID}" +CORRELATION_ID=$(printf '%08x-%04x-%04x-%04x-%012x' $((RANDOM << 16 | RANDOM)) $((RANDOM)) $((RANDOM)) $((RANDOM)) $(( (RANDOM << 16 | RANDOM) << 16 | RANDOM )) ) +PIDS=() + +cleanup() { + for pid in "${PIDS[@]:-}"; do + kill "$pid" 2>/dev/null || true + done + + for pid in "${PIDS[@]:-}"; do + wait "$pid" 2>/dev/null || true + done +} + +trap cleanup EXIT + +wait_for_ready() { + local max_attempts=60 + local attempt=0 + + while [ $attempt -lt $max_attempts ]; do + if grep -q '^READY:aggregator-consumer$' "$OUTPUT_LOG" 2>/dev/null; then + return 0 + fi + + sleep 0.5 + attempt=$((attempt + 1)) + done + + return 1 +} + +verification_complete() { + grep -q '^SUCCESS:aggregator-producer-a:sent ProducerA/10$' "$OUTPUT_LOG" 2>/dev/null && + grep -q '^SUCCESS:aggregator-producer-b:sent ProducerB/15$' "$OUTPUT_LOG" 2>/dev/null && + grep -q '^SUCCESS:aggregator-consumer:combined total 25 from 2 slices$' "$OUTPUT_LOG" 2>/dev/null +} + +wait_for_completion() { + local max_attempts=60 + local attempt=0 + + while [ $attempt -lt $max_attempts ]; do + if verification_complete; then + return 0 + fi + + sleep 0.5 + attempt=$((attempt + 1)) + done + + return 1 +} + +start_dependencies +prebuild_solution "$SCRIPT_DIR/Aggregator.sln" +> "$OUTPUT_LOG" + +SC_EXAMPLES_QUEUE_NAME="$QUEUE_NAME" \ + SC_EXAMPLES_DATABASE_NAME="$DATABASE_NAME" \ + dotnet run --no-build --project "$SCRIPT_DIR/src/ServiceConnect.Examples.Aggregator.Consumer/ServiceConnect.Examples.Aggregator.Consumer.csproj" >> "$OUTPUT_LOG" 2>&1 & +CONSUMER_PID=$! +PIDS+=("$CONSUMER_PID") + +if ! wait_for_ready; then + echo "ERROR: Aggregator consumer did not become ready within 30 seconds" + exit 1 +fi + +SC_EXAMPLES_QUEUE_NAME="$QUEUE_NAME" \ + SC_EXAMPLES_CORRELATION_ID="$CORRELATION_ID" \ + dotnet run --no-build --project "$SCRIPT_DIR/src/ServiceConnect.Examples.Aggregator.ProducerA/ServiceConnect.Examples.Aggregator.ProducerA.csproj" >> "$OUTPUT_LOG" 2>&1 & +PRODUCER_A_PID=$! +PIDS+=("$PRODUCER_A_PID") + +SC_EXAMPLES_QUEUE_NAME="$QUEUE_NAME" \ + SC_EXAMPLES_CORRELATION_ID="$CORRELATION_ID" \ + dotnet run --no-build --project "$SCRIPT_DIR/src/ServiceConnect.Examples.Aggregator.ProducerB/ServiceConnect.Examples.Aggregator.ProducerB.csproj" >> "$OUTPUT_LOG" 2>&1 & +PRODUCER_B_PID=$! +PIDS+=("$PRODUCER_B_PID") + +wait "$PRODUCER_A_PID" +wait "$PRODUCER_B_PID" + +if ! wait_for_completion; then + echo "ERROR: Aggregator run did not produce the combined total within 30 seconds" + exit 1 +fi diff --git a/examples/Aggregator/src/ServiceConnect.Examples.Aggregator.Consumer/Program.cs b/examples/Aggregator/src/ServiceConnect.Examples.Aggregator.Consumer/Program.cs new file mode 100644 index 000000000..62e0d4134 --- /dev/null +++ b/examples/Aggregator/src/ServiceConnect.Examples.Aggregator.Consumer/Program.cs @@ -0,0 +1,38 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.Aggregator.Consumer; +using ServiceConnect.Examples.Aggregator.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Interfaces; + +var settings = ExampleSettingsLoader.Load(); +var queueName = Environment.GetEnvironmentVariable("SC_EXAMPLES_QUEUE_NAME") ?? "aggregator-consumer"; +var databaseName = Environment.GetEnvironmentVariable("SC_EXAMPLES_DATABASE_NAME") ?? "aggregator_consumer"; + +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +await DependencyWaiter.WaitForMongoDbAsync( + settings.MongoConnectionString, + CancellationToken.None); + +var handlerReferences = new List +{ + new() { HandlerType = typeof(TelemetrySliceAggregator), MessageType = typeof(TelemetrySlice) } +}; + +var services = new ServiceCollection(); +services.AddSingleton>(handlerReferences); +services.AddTransient, TelemetrySliceAggregator>(); +services.AddExampleBus(settings, queueName, useMongoDb: true, databaseName: databaseName); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); +await bus.StartConsumingAsync(); +ConsoleStatus.Ready("aggregator-consumer"); +await Console.Out.FlushAsync(); +await Task.Delay(Timeout.InfiniteTimeSpan); diff --git a/examples/Aggregator/src/ServiceConnect.Examples.Aggregator.Consumer/ServiceConnect.Examples.Aggregator.Consumer.csproj b/examples/Aggregator/src/ServiceConnect.Examples.Aggregator.Consumer/ServiceConnect.Examples.Aggregator.Consumer.csproj new file mode 100644 index 000000000..32ec475e5 --- /dev/null +++ b/examples/Aggregator/src/ServiceConnect.Examples.Aggregator.Consumer/ServiceConnect.Examples.Aggregator.Consumer.csproj @@ -0,0 +1,10 @@ + + + Exe + + + + + + + diff --git a/examples/Aggregator/src/ServiceConnect.Examples.Aggregator.Consumer/TelemetrySliceAggregator.cs b/examples/Aggregator/src/ServiceConnect.Examples.Aggregator.Consumer/TelemetrySliceAggregator.cs new file mode 100644 index 000000000..583fd250f --- /dev/null +++ b/examples/Aggregator/src/ServiceConnect.Examples.Aggregator.Consumer/TelemetrySliceAggregator.cs @@ -0,0 +1,19 @@ +using ServiceConnect.Examples.Aggregator.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.Aggregator.Consumer; + +public sealed class TelemetrySliceAggregator : Aggregator +{ + public override int BatchSize() => 2; + + public override TimeSpan Timeout() => TimeSpan.FromSeconds(10); + + public override Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default) + { + var total = messages.Sum(message => message.Value); + ConsoleStatus.Success("aggregator-consumer", $"combined total {total} from {messages.Count} slices"); + return Task.CompletedTask; + } +} diff --git a/examples/Aggregator/src/ServiceConnect.Examples.Aggregator.Contracts/ServiceConnect.Examples.Aggregator.Contracts.csproj b/examples/Aggregator/src/ServiceConnect.Examples.Aggregator.Contracts/ServiceConnect.Examples.Aggregator.Contracts.csproj new file mode 100644 index 000000000..02cd0ca30 --- /dev/null +++ b/examples/Aggregator/src/ServiceConnect.Examples.Aggregator.Contracts/ServiceConnect.Examples.Aggregator.Contracts.csproj @@ -0,0 +1,5 @@ + + + + + diff --git a/examples/Aggregator/src/ServiceConnect.Examples.Aggregator.Contracts/TelemetrySlice.cs b/examples/Aggregator/src/ServiceConnect.Examples.Aggregator.Contracts/TelemetrySlice.cs new file mode 100644 index 000000000..ae495ec0e --- /dev/null +++ b/examples/Aggregator/src/ServiceConnect.Examples.Aggregator.Contracts/TelemetrySlice.cs @@ -0,0 +1,10 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.Aggregator.Contracts; + +public sealed class TelemetrySlice(Guid correlationId) : Message(correlationId) +{ + public string Source { get; init; } = string.Empty; + + public int Value { get; init; } +} diff --git a/examples/Aggregator/src/ServiceConnect.Examples.Aggregator.ProducerA/Program.cs b/examples/Aggregator/src/ServiceConnect.Examples.Aggregator.ProducerA/Program.cs new file mode 100644 index 000000000..382de99e0 --- /dev/null +++ b/examples/Aggregator/src/ServiceConnect.Examples.Aggregator.ProducerA/Program.cs @@ -0,0 +1,36 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.Aggregator.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; + +var settings = ExampleSettingsLoader.Load(); +var queueName = Environment.GetEnvironmentVariable("SC_EXAMPLES_QUEUE_NAME") ?? "aggregator-consumer"; +var correlationId = Guid.TryParse(Environment.GetEnvironmentVariable("SC_EXAMPLES_CORRELATION_ID"), out var parsedCorrelationId) + ? parsedCorrelationId + : Guid.NewGuid(); + +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +var services = new ServiceCollection(); +services.AddSingleton>([]); +services.AddExampleBus(settings, "aggregator-producer-a"); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); + +await bus.SendAsync( + new TelemetrySlice(correlationId) + { + Source = "ProducerA", + Value = 10 + }, + new SendOptions { EndPoint = queueName }); + +ConsoleStatus.Success("aggregator-producer-a", "sent ProducerA/10"); diff --git a/examples/Aggregator/src/ServiceConnect.Examples.Aggregator.ProducerA/ServiceConnect.Examples.Aggregator.ProducerA.csproj b/examples/Aggregator/src/ServiceConnect.Examples.Aggregator.ProducerA/ServiceConnect.Examples.Aggregator.ProducerA.csproj new file mode 100644 index 000000000..32ec475e5 --- /dev/null +++ b/examples/Aggregator/src/ServiceConnect.Examples.Aggregator.ProducerA/ServiceConnect.Examples.Aggregator.ProducerA.csproj @@ -0,0 +1,10 @@ + + + Exe + + + + + + + diff --git a/examples/Aggregator/src/ServiceConnect.Examples.Aggregator.ProducerB/Program.cs b/examples/Aggregator/src/ServiceConnect.Examples.Aggregator.ProducerB/Program.cs new file mode 100644 index 000000000..3f4d50e71 --- /dev/null +++ b/examples/Aggregator/src/ServiceConnect.Examples.Aggregator.ProducerB/Program.cs @@ -0,0 +1,36 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.Aggregator.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; + +var settings = ExampleSettingsLoader.Load(); +var queueName = Environment.GetEnvironmentVariable("SC_EXAMPLES_QUEUE_NAME") ?? "aggregator-consumer"; +var correlationId = Guid.TryParse(Environment.GetEnvironmentVariable("SC_EXAMPLES_CORRELATION_ID"), out var parsedCorrelationId) + ? parsedCorrelationId + : Guid.NewGuid(); + +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +var services = new ServiceCollection(); +services.AddSingleton>([]); +services.AddExampleBus(settings, "aggregator-producer-b"); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); + +await bus.SendAsync( + new TelemetrySlice(correlationId) + { + Source = "ProducerB", + Value = 15 + }, + new SendOptions { EndPoint = queueName }); + +ConsoleStatus.Success("aggregator-producer-b", "sent ProducerB/15"); diff --git a/examples/Aggregator/src/ServiceConnect.Examples.Aggregator.ProducerB/ServiceConnect.Examples.Aggregator.ProducerB.csproj b/examples/Aggregator/src/ServiceConnect.Examples.Aggregator.ProducerB/ServiceConnect.Examples.Aggregator.ProducerB.csproj new file mode 100644 index 000000000..32ec475e5 --- /dev/null +++ b/examples/Aggregator/src/ServiceConnect.Examples.Aggregator.ProducerB/ServiceConnect.Examples.Aggregator.ProducerB.csproj @@ -0,0 +1,10 @@ + + + Exe + + + + + + + diff --git a/examples/CompetingConsumers/CompetingConsumers.sln b/examples/CompetingConsumers/CompetingConsumers.sln new file mode 100644 index 000000000..7b0b9b7b2 --- /dev/null +++ b/examples/CompetingConsumers/CompetingConsumers.sln @@ -0,0 +1,83 @@ +Microsoft Visual Studio Solution File, Format Version 12.00 +# Visual Studio Version 17 +VisualStudioVersion = 17.0.31903.59 +MinimumVisualStudioVersion = 10.0.40219.1 +Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{827E0CD3-B72D-47B6-A68D-7590B98EB39B}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = 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{CB4F2801-4C05-4447-868B-D2BC3DA0EAEB}.Release|Any CPU.ActiveCfg = Release|Any CPU + {CB4F2801-4C05-4447-868B-D2BC3DA0EAEB}.Release|Any CPU.Build.0 = Release|Any CPU + {CB4F2801-4C05-4447-868B-D2BC3DA0EAEB}.Release|x64.ActiveCfg = Release|Any CPU + {CB4F2801-4C05-4447-868B-D2BC3DA0EAEB}.Release|x64.Build.0 = Release|Any CPU + {CB4F2801-4C05-4447-868B-D2BC3DA0EAEB}.Release|x86.ActiveCfg = Release|Any CPU + {CB4F2801-4C05-4447-868B-D2BC3DA0EAEB}.Release|x86.Build.0 = Release|Any CPU + EndGlobalSection + GlobalSection(SolutionProperties) = preSolution + HideSolutionNode = FALSE + EndGlobalSection + GlobalSection(NestedProjects) = preSolution + {7CC47926-2290-422D-8AA3-4A97CCF9B135} = {827E0CD3-B72D-47B6-A68D-7590B98EB39B} + {9F14930E-3F91-46EB-8E7E-C3A1098FB82D} = {827E0CD3-B72D-47B6-A68D-7590B98EB39B} + {CB4F2801-4C05-4447-868B-D2BC3DA0EAEF} = {827E0CD3-B72D-47B6-A68D-7590B98EB39B} + {CB4F2801-4C05-4447-868B-D2BC3DA0EAEB} = {827E0CD3-B72D-47B6-A68D-7590B98EB39B} + EndGlobalSection +EndGlobal \ No newline at end of file diff --git a/examples/CompetingConsumers/README.md b/examples/CompetingConsumers/README.md new file mode 100644 index 000000000..f9ebe3604 --- /dev/null +++ b/examples/CompetingConsumers/README.md @@ -0,0 +1,64 @@ +# CompetingConsumers + +## Overview + +Multiple workers listen on the same queue, competing to process messages. In this example run, the smoke test verifies that the 10 queued jobs are observed once across the workers, demonstrating shared-queue consumption by competing consumers. + +## Participants + +- `ServiceConnect.Examples.CompetingConsumers.Producer` +- `ServiceConnect.Examples.CompetingConsumers.WorkerA` +- `ServiceConnect.Examples.CompetingConsumers.WorkerB` + +## Message Flow + +```mermaid +sequenceDiagram + participant Producer + participant SharedQueue + participant WorkerA + participant WorkerB + Producer->>SharedQueue: enqueue 10 JobQueued messages + SharedQueue-->>WorkerA: dispatch a subset of jobs + SharedQueue-->>WorkerB: dispatch the remaining jobs +``` + +## Prerequisites + +`docker compose -f ../docker-compose.yml up -d` + +## Run This Example + +`bash run.sh` + +The scripted runner uses a unique queue name for each run to avoid interference from earlier smoke tests. + +## Run Manually + +Start both workers first, then the producer. + +```bash +SC_EXAMPLES_QUEUE_NAME=competing-consumers-work dotnet run --project src/ServiceConnect.Examples.CompetingConsumers.WorkerA/ServiceConnect.Examples.CompetingConsumers.WorkerA.csproj & +SC_EXAMPLES_QUEUE_NAME=competing-consumers-work dotnet run --project src/ServiceConnect.Examples.CompetingConsumers.WorkerB/ServiceConnect.Examples.CompetingConsumers.WorkerB.csproj & +SC_EXAMPLES_QUEUE_NAME=competing-consumers-work dotnet run --project src/ServiceConnect.Examples.CompetingConsumers.Producer/ServiceConnect.Examples.CompetingConsumers.Producer.csproj +``` + +The manual commands above use the fixed shared queue name from the plan. The scripted runner chooses a unique queue name automatically so repeated smoke runs stay isolated. + +## Expected Output + +`READY:worker-a` + +`READY:worker-b` + +`SUCCESS:competing-consumers-producer:sent 10 jobs` + +Exactly 10 total lines matching `SUCCESS:worker-a:processed job-XXX` or `SUCCESS:worker-b:processed job-XXX` + +Each of `job-001` through `job-010` appears exactly once across those 10 lines + +The split between worker-a and worker-b can vary by run, including runs where one worker processes more messages than the other + +## What To Notice + +Both workers listen on the same queue name, and the smoke test waits for both `READY` lines before sending work. The distribution can vary between runs, but a successful demonstration shows that the 10 jobs sent in that run were all observed once across the competing consumers. diff --git a/examples/CompetingConsumers/run.ps1 b/examples/CompetingConsumers/run.ps1 new file mode 100644 index 000000000..a8170c85a --- /dev/null +++ b/examples/CompetingConsumers/run.ps1 @@ -0,0 +1,174 @@ +$ErrorActionPreference = 'Stop' +$PSNativeCommandUseErrorActionPreference = $true + +. "$PSScriptRoot/../scripts/common.ps1" + +$workerAProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.CompetingConsumers.WorkerA/ServiceConnect.Examples.CompetingConsumers.WorkerA.csproj' +$workerBProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.CompetingConsumers.WorkerB/ServiceConnect.Examples.CompetingConsumers.WorkerB.csproj' +$producerProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.CompetingConsumers.Producer/ServiceConnect.Examples.CompetingConsumers.Producer.csproj' +$OUTPUT_LOG = Join-Path $PSScriptRoot 'output.log' +$QUEUE_NAME = "competing-consumers-queue-$([DateTimeOffset]::UtcNow.ToUnixTimeMilliseconds())" +$LogLock = New-Object object + +$workerAProcess = $null +$workerBProcess = $null +$producerProcess = $null + +function Write-LogLine { + param([string]$Line) + + if ($null -eq $Line) { + return + } + + [System.Threading.Monitor]::Enter($LogLock) + try { + [System.IO.File]::AppendAllText($OUTPUT_LOG, $Line + [Environment]::NewLine) + } + finally { + [System.Threading.Monitor]::Exit($LogLock) + } +} + +function Start-LoggedProcess { + param( + [string]$ProjectPath + ) + + $startInfo = [System.Diagnostics.ProcessStartInfo]::new() + $startInfo.FileName = 'dotnet' + $startInfo.Arguments = "run --project `"$ProjectPath`"" + $startInfo.WorkingDirectory = $PSScriptRoot + $startInfo.UseShellExecute = $false + $startInfo.RedirectStandardOutput = $true + $startInfo.RedirectStandardError = $true + $startInfo.Environment['SC_EXAMPLES_QUEUE_NAME'] = $QUEUE_NAME + + $process = [System.Diagnostics.Process]::new() + $process.StartInfo = $startInfo + + $outputHandler = [System.Diagnostics.DataReceivedEventHandler] { + param($sender, $eventArgs) + if ($null -ne $eventArgs.Data) { + Write-LogLine $eventArgs.Data + } + } + $errorHandler = [System.Diagnostics.DataReceivedEventHandler] { + param($sender, $eventArgs) + if ($null -ne $eventArgs.Data) { + Write-LogLine $eventArgs.Data + } + } + + $process.add_OutputDataReceived($outputHandler) + $process.add_ErrorDataReceived($errorHandler) + $process.Start() | Out-Null + $process.BeginOutputReadLine() + $process.BeginErrorReadLine() + + return [pscustomobject]@{ + Process = $process + OutputHandler = $outputHandler + ErrorHandler = $errorHandler + } +} + +function Stop-LoggedProcess { + param($LoggedProcess) + + if ($null -eq $LoggedProcess) { + return + } + + $process = $LoggedProcess.Process + if ($null -eq $process) { + return + } + + try { + if (-not $process.HasExited) { + Stop-Process -Id $process.Id -Force -ErrorAction SilentlyContinue + } + + $process.WaitForExit() + } + finally { + $process.remove_OutputDataReceived($LoggedProcess.OutputHandler) + $process.remove_ErrorDataReceived($LoggedProcess.ErrorHandler) + $process.Dispose() + } +} + +function Get-OutputLines { + if (-not (Test-Path $OUTPUT_LOG)) { + return @() + } + + try { + return [System.IO.File]::ReadAllLines($OUTPUT_LOG) + } + catch [System.IO.IOException] { + return @() + } +} + +function Test-WorkersReady { + $lines = @(Get-OutputLines) + return $lines.Contains('READY:worker-a') -and $lines.Contains('READY:worker-b') +} + +function Test-WorkersCompleted { + $lines = @(Get-OutputLines) + $processedLines = @($lines | Where-Object { $_ -match '^SUCCESS:worker-(a|b):processed job-\d{3}$' }) + + if ($processedLines.Count -ne 10) { + return $false + } + + $jobIds = @($processedLines | ForEach-Object { ($_ -split ':processed ', 2)[1] } | Sort-Object -Unique) + + return $jobIds.Count -eq 10 +} + +function Wait-ForCondition { + param( + [scriptblock]$Condition, + [string]$FailureMessage + ) + + $maxAttempts = 60 + + for ($attempt = 0; $attempt -lt $maxAttempts; $attempt++) { + if (& $Condition) { + return + } + + Start-Sleep -Milliseconds 500 + } + + throw $FailureMessage +} + +try { + Start-ExampleDependencies + + '' | Set-Content -Path $OUTPUT_LOG + $workerAProcess = Start-LoggedProcess $workerAProject + $workerBProcess = Start-LoggedProcess $workerBProject + + Wait-ForCondition -Condition { Test-WorkersReady } -FailureMessage 'Workers did not become ready within 30 seconds' + + $producerProcess = Start-LoggedProcess $producerProject + $producerProcess.Process.WaitForExit() + + if ($producerProcess.Process.ExitCode -ne 0) { + throw "Producer exited with code $($producerProcess.Process.ExitCode)" + } + + Wait-ForCondition -Condition { Test-WorkersCompleted } -FailureMessage 'Workers did not process all 10 jobs within 30 seconds' +} +finally { + Stop-LoggedProcess $producerProcess + Stop-LoggedProcess $workerAProcess + Stop-LoggedProcess $workerBProcess +} diff --git a/examples/CompetingConsumers/run.sh b/examples/CompetingConsumers/run.sh new file mode 100755 index 000000000..cdc5d00db --- /dev/null +++ b/examples/CompetingConsumers/run.sh @@ -0,0 +1,96 @@ +#!/usr/bin/env bash +set -euo pipefail + +SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)" +source "$SCRIPT_DIR/../scripts/common.sh" + +OUTPUT_LOG="$SCRIPT_DIR/output.log" +RUN_ID=$(date +%s%N) +QUEUE_NAME="competing-consumers-queue-${RUN_ID}" +PIDS=() + +cleanup() { + for pid in "${PIDS[@]:-}"; do + kill "$pid" 2>/dev/null || true + done + + for pid in "${PIDS[@]:-}"; do + wait "$pid" 2>/dev/null || true + done + +} + +trap cleanup EXIT + +wait_for_ready() { + local max_attempts=60 + local attempt=0 + + while [ $attempt -lt $max_attempts ]; do + if grep -q "READY:worker-a" "$OUTPUT_LOG" 2>/dev/null && grep -q "READY:worker-b" "$OUTPUT_LOG" 2>/dev/null; then + return 0 + fi + sleep 0.5 + attempt=$((attempt + 1)) + done + return 1 +} + +completion_condition_met() { + local -a lines + mapfile -t lines < <(grep -E '^SUCCESS:worker-(a|b):processed job-[0-9]{3}$' "$OUTPUT_LOG" 2>/dev/null || true) + + if [ "${#lines[@]}" -ne 10 ]; then + return 1 + fi + + local unique_jobs + unique_jobs=$(printf '%s\n' "${lines[@]}" | sed -E 's/^SUCCESS:worker-(a|b):processed //' | sort -u | wc -l | tr -d ' ') + [ "$unique_jobs" -eq 10 ] +} + +wait_for_completion() { + local max_attempts=60 + local attempt=0 + + while [ $attempt -lt $max_attempts ]; do + if completion_condition_met; then + return 0 + fi + sleep 0.5 + attempt=$((attempt + 1)) + done + + return 1 +} + +start_passive() { + local project_path="$1" + SC_EXAMPLES_QUEUE_NAME="$QUEUE_NAME" dotnet run --no-build --project "$project_path" >> "$OUTPUT_LOG" 2>&1 & + PIDS+=("$!") +} + +start_dependencies +prebuild_solution "$SCRIPT_DIR/CompetingConsumers.sln" +> "$OUTPUT_LOG" +start_passive "$SCRIPT_DIR/src/ServiceConnect.Examples.CompetingConsumers.WorkerA/ServiceConnect.Examples.CompetingConsumers.WorkerA.csproj" +start_passive "$SCRIPT_DIR/src/ServiceConnect.Examples.CompetingConsumers.WorkerB/ServiceConnect.Examples.CompetingConsumers.WorkerB.csproj" + +if ! wait_for_ready; then + echo "ERROR: Workers did not become ready within 30 seconds" + for pid in "${PIDS[@]}"; do + kill "$pid" 2>/dev/null || true + done + exit 1 +fi + +SC_EXAMPLES_QUEUE_NAME="$QUEUE_NAME" dotnet run --no-build --project "$SCRIPT_DIR/src/ServiceConnect.Examples.CompetingConsumers.Producer/ServiceConnect.Examples.CompetingConsumers.Producer.csproj" >> "$OUTPUT_LOG" 2>&1 & +PUBLISHER_PID=$! +wait "$PUBLISHER_PID" + +if ! wait_for_completion; then + echo "ERROR: Workers did not process all 10 jobs within 30 seconds" + exit 1 +fi + +exit 0 diff --git a/examples/CompetingConsumers/src/ServiceConnect.Examples.CompetingConsumers.Contracts/JobQueued.cs b/examples/CompetingConsumers/src/ServiceConnect.Examples.CompetingConsumers.Contracts/JobQueued.cs new file mode 100644 index 000000000..273a6507d --- /dev/null +++ b/examples/CompetingConsumers/src/ServiceConnect.Examples.CompetingConsumers.Contracts/JobQueued.cs @@ -0,0 +1,8 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.CompetingConsumers.Contracts; + +public sealed class JobQueued(Guid correlationId) : Message(correlationId) +{ + public string JobId { get; init; } = string.Empty; +} diff --git a/examples/CompetingConsumers/src/ServiceConnect.Examples.CompetingConsumers.Contracts/ServiceConnect.Examples.CompetingConsumers.Contracts.csproj b/examples/CompetingConsumers/src/ServiceConnect.Examples.CompetingConsumers.Contracts/ServiceConnect.Examples.CompetingConsumers.Contracts.csproj new file mode 100644 index 000000000..e25ce6822 --- /dev/null +++ b/examples/CompetingConsumers/src/ServiceConnect.Examples.CompetingConsumers.Contracts/ServiceConnect.Examples.CompetingConsumers.Contracts.csproj @@ -0,0 +1,5 @@ + + + + + \ No newline at end of file diff --git a/examples/CompetingConsumers/src/ServiceConnect.Examples.CompetingConsumers.Producer/Program.cs b/examples/CompetingConsumers/src/ServiceConnect.Examples.CompetingConsumers.Producer/Program.cs new file mode 100644 index 000000000..583e269d9 --- /dev/null +++ b/examples/CompetingConsumers/src/ServiceConnect.Examples.CompetingConsumers.Producer/Program.cs @@ -0,0 +1,34 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.CompetingConsumers.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; + +var settings = ExampleSettingsLoader.Load(); +var queueName = Environment.GetEnvironmentVariable("SC_EXAMPLES_QUEUE_NAME") ?? "competing-consumers-work"; +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +var services = new ServiceCollection(); +services.AddSingleton>([]); +services.AddExampleBus(settings, "competing-consumers-producer"); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); + +for (int i = 1; i <= 10; i++) +{ + var jobId = $"job-{i:D3}"; + await bus.SendAsync( + new JobQueued(Guid.NewGuid()) { JobId = jobId }, + new SendOptions { EndPoint = queueName }); +} + +ConsoleStatus.Success("competing-consumers-producer", "sent 10 jobs"); +await Console.Out.FlushAsync(); +await Task.Delay(TimeSpan.FromSeconds(10)); diff --git a/examples/CompetingConsumers/src/ServiceConnect.Examples.CompetingConsumers.Producer/ServiceConnect.Examples.CompetingConsumers.Producer.csproj b/examples/CompetingConsumers/src/ServiceConnect.Examples.CompetingConsumers.Producer/ServiceConnect.Examples.CompetingConsumers.Producer.csproj new file mode 100644 index 000000000..dfc87ad33 --- /dev/null +++ b/examples/CompetingConsumers/src/ServiceConnect.Examples.CompetingConsumers.Producer/ServiceConnect.Examples.CompetingConsumers.Producer.csproj @@ -0,0 +1,10 @@ + + + Exe + + + + + + + \ No newline at end of file diff --git a/examples/CompetingConsumers/src/ServiceConnect.Examples.CompetingConsumers.WorkerA/JobQueuedHandler.cs b/examples/CompetingConsumers/src/ServiceConnect.Examples.CompetingConsumers.WorkerA/JobQueuedHandler.cs new file mode 100644 index 000000000..3e346a20f --- /dev/null +++ b/examples/CompetingConsumers/src/ServiceConnect.Examples.CompetingConsumers.WorkerA/JobQueuedHandler.cs @@ -0,0 +1,14 @@ +using ServiceConnect.Examples.CompetingConsumers.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.CompetingConsumers.WorkerA; + +public sealed class JobQueuedHandler : IMessageHandler +{ + public async Task HandleAsync(JobQueued message, IConsumeContext context, CancellationToken cancellationToken = default) + { + ConsoleStatus.Success("worker-a", $"processed {message.JobId}"); + await Console.Out.FlushAsync(); + } +} diff --git a/examples/CompetingConsumers/src/ServiceConnect.Examples.CompetingConsumers.WorkerA/Program.cs b/examples/CompetingConsumers/src/ServiceConnect.Examples.CompetingConsumers.WorkerA/Program.cs new file mode 100644 index 000000000..1a7ae543a --- /dev/null +++ b/examples/CompetingConsumers/src/ServiceConnect.Examples.CompetingConsumers.WorkerA/Program.cs @@ -0,0 +1,32 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.CompetingConsumers.Contracts; +using ServiceConnect.Examples.CompetingConsumers.WorkerA; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Interfaces; + +var settings = ExampleSettingsLoader.Load(); +var queueName = Environment.GetEnvironmentVariable("SC_EXAMPLES_QUEUE_NAME") ?? "competing-consumers-work"; +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +var handlerReferences = new List +{ + new() { HandlerType = typeof(JobQueuedHandler), MessageType = typeof(JobQueued) } +}; + +var services = new ServiceCollection(); +services.AddSingleton>(handlerReferences); +services.AddTransient, JobQueuedHandler>(); +services.AddExampleBus(settings, queueName); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); +await bus.StartConsumingAsync(); +ConsoleStatus.Ready("worker-a"); +await Console.Out.FlushAsync(); +await Task.Delay(Timeout.InfiniteTimeSpan); diff --git a/examples/CompetingConsumers/src/ServiceConnect.Examples.CompetingConsumers.WorkerA/ServiceConnect.Examples.CompetingConsumers.WorkerA.csproj b/examples/CompetingConsumers/src/ServiceConnect.Examples.CompetingConsumers.WorkerA/ServiceConnect.Examples.CompetingConsumers.WorkerA.csproj new file mode 100644 index 000000000..dfc87ad33 --- /dev/null +++ b/examples/CompetingConsumers/src/ServiceConnect.Examples.CompetingConsumers.WorkerA/ServiceConnect.Examples.CompetingConsumers.WorkerA.csproj @@ -0,0 +1,10 @@ + + + Exe + + + + + + + \ No newline at end of file diff --git a/examples/CompetingConsumers/src/ServiceConnect.Examples.CompetingConsumers.WorkerB/JobQueuedHandler.cs b/examples/CompetingConsumers/src/ServiceConnect.Examples.CompetingConsumers.WorkerB/JobQueuedHandler.cs new file mode 100644 index 000000000..0e7b1d34a --- /dev/null +++ b/examples/CompetingConsumers/src/ServiceConnect.Examples.CompetingConsumers.WorkerB/JobQueuedHandler.cs @@ -0,0 +1,14 @@ +using ServiceConnect.Examples.CompetingConsumers.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.CompetingConsumers.WorkerB; + +public sealed class JobQueuedHandler : IMessageHandler +{ + public async Task HandleAsync(JobQueued message, IConsumeContext context, CancellationToken cancellationToken = default) + { + ConsoleStatus.Success("worker-b", $"processed {message.JobId}"); + await Console.Out.FlushAsync(); + } +} diff --git a/examples/CompetingConsumers/src/ServiceConnect.Examples.CompetingConsumers.WorkerB/Program.cs b/examples/CompetingConsumers/src/ServiceConnect.Examples.CompetingConsumers.WorkerB/Program.cs new file mode 100644 index 000000000..bceea3900 --- /dev/null +++ b/examples/CompetingConsumers/src/ServiceConnect.Examples.CompetingConsumers.WorkerB/Program.cs @@ -0,0 +1,32 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.CompetingConsumers.Contracts; +using ServiceConnect.Examples.CompetingConsumers.WorkerB; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Interfaces; + +var settings = ExampleSettingsLoader.Load(); +var queueName = Environment.GetEnvironmentVariable("SC_EXAMPLES_QUEUE_NAME") ?? "competing-consumers-work"; +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +var handlerReferences = new List +{ + new() { HandlerType = typeof(JobQueuedHandler), MessageType = typeof(JobQueued) } +}; + +var services = new ServiceCollection(); +services.AddSingleton>(handlerReferences); +services.AddTransient, JobQueuedHandler>(); +services.AddExampleBus(settings, queueName); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); +await bus.StartConsumingAsync(); +ConsoleStatus.Ready("worker-b"); +await Console.Out.FlushAsync(); +await Task.Delay(Timeout.InfiniteTimeSpan); diff --git a/examples/CompetingConsumers/src/ServiceConnect.Examples.CompetingConsumers.WorkerB/ServiceConnect.Examples.CompetingConsumers.WorkerB.csproj b/examples/CompetingConsumers/src/ServiceConnect.Examples.CompetingConsumers.WorkerB/ServiceConnect.Examples.CompetingConsumers.WorkerB.csproj new file mode 100644 index 000000000..dfc87ad33 --- /dev/null +++ b/examples/CompetingConsumers/src/ServiceConnect.Examples.CompetingConsumers.WorkerB/ServiceConnect.Examples.CompetingConsumers.WorkerB.csproj @@ -0,0 +1,10 @@ + + + Exe + + + + + + + \ No newline at end of file diff --git a/examples/ContentBasedRouting/ContentBasedRouting.sln b/examples/ContentBasedRouting/ContentBasedRouting.sln new file mode 100644 index 000000000..a11e50e01 --- /dev/null +++ b/examples/ContentBasedRouting/ContentBasedRouting.sln @@ -0,0 +1,83 @@ +Microsoft Visual Studio Solution File, Format Version 12.00 +# Visual Studio Version 17 +VisualStudioVersion = 17.0.31903.59 +MinimumVisualStudioVersion = 10.0.40219.1 +Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{827E0CD3-B72D-47B6-A68D-7590B98EB39B}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect.Examples.ContentBasedRouting.Contracts", "src\ServiceConnect.Examples.ContentBasedRouting.Contracts\ServiceConnect.Examples.ContentBasedRouting.Contracts.csproj", "{E1A62341-4D91-4E4D-8A31-0A17A10A0001}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect.Examples.ContentBasedRouting.Publisher", "src\ServiceConnect.Examples.ContentBasedRouting.Publisher\ServiceConnect.Examples.ContentBasedRouting.Publisher.csproj", "{E1A62341-4D91-4E4D-8A31-0A17A10A0002}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect.Examples.ContentBasedRouting.PriorityConsumer", "src\ServiceConnect.Examples.ContentBasedRouting.PriorityConsumer\ServiceConnect.Examples.ContentBasedRouting.PriorityConsumer.csproj", "{E1A62341-4D91-4E4D-8A31-0A17A10A0003}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect.Examples.ContentBasedRouting.StandardConsumer", 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+EndGlobal diff --git a/examples/ContentBasedRouting/README.md b/examples/ContentBasedRouting/README.md new file mode 100644 index 000000000..207524c9a --- /dev/null +++ b/examples/ContentBasedRouting/README.md @@ -0,0 +1,58 @@ +# ContentBasedRouting + +## Overview + +Publish two different event types from one publisher, then let each consumer handle only the message type that matches its route. In this example, routing is driven by message type rather than by inspecting a shared payload at runtime. + +## Participants + +- `ServiceConnect.Examples.ContentBasedRouting.Publisher` +- `ServiceConnect.Examples.ContentBasedRouting.PriorityConsumer` +- `ServiceConnect.Examples.ContentBasedRouting.StandardConsumer` + +## Message Flow + +```mermaid +sequenceDiagram + participant Publisher + participant PriorityConsumer + participant StandardConsumer + Publisher->>PriorityConsumer: PremiumOrderPlaced(premium-order-) + Publisher->>StandardConsumer: StandardOrderPlaced(standard-order-) +``` + +## Prerequisites + +`docker compose -f ../docker-compose.yml up -d` + +## Run This Example + +`bash run.sh` + +## Run Manually + +Run both consumers first, then the publisher. + +`dotnet run --project src/ServiceConnect.Examples.ContentBasedRouting.PriorityConsumer/ServiceConnect.Examples.ContentBasedRouting.PriorityConsumer.csproj` + +`dotnet run --project src/ServiceConnect.Examples.ContentBasedRouting.StandardConsumer/ServiceConnect.Examples.ContentBasedRouting.StandardConsumer.csproj` + +`dotnet run --project src/ServiceConnect.Examples.ContentBasedRouting.Publisher/ServiceConnect.Examples.ContentBasedRouting.Publisher.csproj` + +## Expected Output + +`READY:priority-consumer` + +`READY:standard-consumer` + +`SUCCESS:content-based-routing-publisher:published premium-order- and standard-order-` + +`SUCCESS:priority-consumer:processed premium-order-` + +`SUCCESS:standard-consumer:processed standard-order-` + +The exact line order can vary because the two consumers run concurrently. + +## What To Notice + +The publisher sends one premium event and one standard event, but no consumer needs to inspect a shared payload and branch manually. Message type selection performs the routing, so each consumer only subscribes to the event it is meant to process. diff --git a/examples/ContentBasedRouting/run.ps1 b/examples/ContentBasedRouting/run.ps1 new file mode 100644 index 000000000..0f09b1be6 --- /dev/null +++ b/examples/ContentBasedRouting/run.ps1 @@ -0,0 +1,195 @@ +$ErrorActionPreference = 'Stop' +$PSNativeCommandUseErrorActionPreference = $true + +. "$PSScriptRoot/../scripts/common.ps1" + +$priorityProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.ContentBasedRouting.PriorityConsumer/ServiceConnect.Examples.ContentBasedRouting.PriorityConsumer.csproj' +$standardProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.ContentBasedRouting.StandardConsumer/ServiceConnect.Examples.ContentBasedRouting.StandardConsumer.csproj' +$publisherProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.ContentBasedRouting.Publisher/ServiceConnect.Examples.ContentBasedRouting.Publisher.csproj' +$OUTPUT_LOG = Join-Path $PSScriptRoot 'output.log' +$RunId = [DateTimeOffset]::UtcNow.ToUnixTimeMilliseconds() +$PremiumOrderId = "premium-order-$RunId" +$StandardOrderId = "standard-order-$RunId" +$PriorityQueueName = "priority-consumer-$RunId" +$StandardQueueName = "standard-consumer-$RunId" +$LogLock = New-Object object + +$priorityProcess = $null +$standardProcess = $null +$publisherProcess = $null + +function Write-LogLine { + param([string]$Line) + + if ($null -eq $Line) { + return + } + + [System.Threading.Monitor]::Enter($LogLock) + try { + [System.IO.File]::AppendAllText($OUTPUT_LOG, $Line + [Environment]::NewLine) + } + finally { + [System.Threading.Monitor]::Exit($LogLock) + } +} + +function Start-LoggedProcess { + param( + [string]$ProjectPath, + [hashtable]$EnvironmentVariables + ) + + $startInfo = [System.Diagnostics.ProcessStartInfo]::new() + $startInfo.FileName = 'dotnet' + $startInfo.Arguments = "run --project `"$ProjectPath`"" + $startInfo.WorkingDirectory = $PSScriptRoot + $startInfo.UseShellExecute = $false + $startInfo.RedirectStandardOutput = $true + $startInfo.RedirectStandardError = $true + + foreach ($key in $EnvironmentVariables.Keys) { + $startInfo.Environment[$key] = $EnvironmentVariables[$key] + } + + $process = [System.Diagnostics.Process]::new() + $process.StartInfo = $startInfo + + $outputHandler = [System.Diagnostics.DataReceivedEventHandler] { + param($sender, $eventArgs) + if ($null -ne $eventArgs.Data) { + Write-LogLine $eventArgs.Data + } + } + $errorHandler = [System.Diagnostics.DataReceivedEventHandler] { + param($sender, $eventArgs) + if ($null -ne $eventArgs.Data) { + Write-LogLine $eventArgs.Data + } + } + + $process.add_OutputDataReceived($outputHandler) + $process.add_ErrorDataReceived($errorHandler) + $process.Start() | Out-Null + $process.BeginOutputReadLine() + $process.BeginErrorReadLine() + + return [pscustomobject]@{ + Process = $process + OutputHandler = $outputHandler + ErrorHandler = $errorHandler + } +} + +function Stop-LoggedProcess { + param($LoggedProcess) + + if ($null -eq $LoggedProcess) { + return + } + + $process = $LoggedProcess.Process + if ($null -eq $process) { + return + } + + try { + if (-not $process.HasExited) { + Stop-Process -Id $process.Id -Force -ErrorAction SilentlyContinue + } + + $process.WaitForExit() + } + finally { + $process.remove_OutputDataReceived($LoggedProcess.OutputHandler) + $process.remove_ErrorDataReceived($LoggedProcess.ErrorHandler) + $process.Dispose() + } +} + +function Get-OutputLines { + if (-not (Test-Path $OUTPUT_LOG)) { + return @() + } + + try { + return [System.IO.File]::ReadAllLines($OUTPUT_LOG) + } + catch [System.IO.IOException] { + return @() + } +} + +function Test-ConsumersReady { + $lines = @(Get-OutputLines) + return $lines.Contains('READY:priority-consumer') -and $lines.Contains('READY:standard-consumer') +} + +function Test-ConsumersCompleted { + $lines = @(Get-OutputLines) + return $lines.Contains("SUCCESS:content-based-routing-publisher:published $PremiumOrderId and $StandardOrderId") -and + $lines.Contains("SUCCESS:priority-consumer:processed $PremiumOrderId") -and + $lines.Contains("SUCCESS:standard-consumer:processed $StandardOrderId") +} + +function Test-NoMisdirectedMessages { + $lines = @(Get-OutputLines) + $priorityWrong = @($lines | Where-Object { $_ -match '^SUCCESS:priority-consumer:processed standard-order-' }).Count -eq 0 + $standardWrong = @($lines | Where-Object { $_ -match '^SUCCESS:standard-consumer:processed premium-order-' }).Count -eq 0 + return $priorityWrong -and $standardWrong +} + +function Wait-ForCondition { + param( + [scriptblock]$Condition, + [string]$FailureMessage + ) + + $maxAttempts = 60 + + for ($attempt = 0; $attempt -lt $maxAttempts; $attempt++) { + if (& $Condition) { + return + } + + Start-Sleep -Milliseconds 500 + } + + throw $FailureMessage +} + +try { + Start-ExampleDependencies + + '' | Set-Content -Path $OUTPUT_LOG + $consumerEnvironment = @{ + 'SC_EXAMPLES_PRIORITY_QUEUE_NAME' = $PriorityQueueName + 'SC_EXAMPLES_STANDARD_QUEUE_NAME' = $StandardQueueName + } + + $priorityProcess = Start-LoggedProcess $priorityProject $consumerEnvironment + $standardProcess = Start-LoggedProcess $standardProject $consumerEnvironment + + Wait-ForCondition -Condition { Test-ConsumersReady } -FailureMessage 'Consumers did not become ready within 30 seconds' + + $publisherProcess = Start-LoggedProcess $publisherProject @{ + 'SC_EXAMPLES_PREMIUM_ORDER_ID' = $PremiumOrderId + 'SC_EXAMPLES_STANDARD_ORDER_ID' = $StandardOrderId + } + $publisherProcess.Process.WaitForExit() + + if ($publisherProcess.Process.ExitCode -ne 0) { + throw "Publisher exited with code $($publisherProcess.Process.ExitCode)" + } + + Wait-ForCondition -Condition { Test-ConsumersCompleted } -FailureMessage 'Consumers did not process the expected routed events within 30 seconds' + + if (-not (Test-NoMisdirectedMessages)) { + throw 'A consumer processed the wrong message type' + } +} +finally { + Stop-LoggedProcess $publisherProcess + Stop-LoggedProcess $priorityProcess + Stop-LoggedProcess $standardProcess +} diff --git a/examples/ContentBasedRouting/run.sh b/examples/ContentBasedRouting/run.sh new file mode 100755 index 000000000..37e6f914c --- /dev/null +++ b/examples/ContentBasedRouting/run.sh @@ -0,0 +1,105 @@ +#!/usr/bin/env bash +set -euo pipefail + +SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)" +source "$SCRIPT_DIR/../scripts/common.sh" + +OUTPUT_LOG="$SCRIPT_DIR/output.log" +RUN_ID=$(date +%s%N) +PREMIUM_ORDER_ID="premium-order-${RUN_ID}" +STANDARD_ORDER_ID="standard-order-${RUN_ID}" +PRIORITY_QUEUE_NAME="priority-consumer-${RUN_ID}" +STANDARD_QUEUE_NAME="standard-consumer-${RUN_ID}" +PIDS=() + +cleanup() { + for pid in "${PIDS[@]:-}"; do + kill "$pid" 2>/dev/null || true + done + + for pid in "${PIDS[@]:-}"; do + wait "$pid" 2>/dev/null || true + done +} + +trap cleanup EXIT + +wait_for_ready() { + local max_attempts=60 + local attempt=0 + + while [ $attempt -lt $max_attempts ]; do + if grep -q '^READY:priority-consumer$' "$OUTPUT_LOG" 2>/dev/null && grep -q '^READY:standard-consumer$' "$OUTPUT_LOG" 2>/dev/null; then + return 0 + fi + + sleep 0.5 + attempt=$((attempt + 1)) + done + + return 1 +} + +verification_complete() { + grep -q "^SUCCESS:content-based-routing-publisher:published ${PREMIUM_ORDER_ID} and ${STANDARD_ORDER_ID}$" "$OUTPUT_LOG" 2>/dev/null && + grep -q "^SUCCESS:priority-consumer:processed ${PREMIUM_ORDER_ID}$" "$OUTPUT_LOG" 2>/dev/null && + grep -q "^SUCCESS:standard-consumer:processed ${STANDARD_ORDER_ID}$" "$OUTPUT_LOG" 2>/dev/null +} + +wait_for_completion() { + local max_attempts=60 + local attempt=0 + + while [ $attempt -lt $max_attempts ]; do + if verification_complete; then + return 0 + fi + + sleep 0.5 + attempt=$((attempt + 1)) + done + + return 1 +} + +start_passive() { + local project_path="$1" + SC_EXAMPLES_PRIORITY_QUEUE_NAME="$PRIORITY_QUEUE_NAME" \ + SC_EXAMPLES_STANDARD_QUEUE_NAME="$STANDARD_QUEUE_NAME" \ + dotnet run --no-build --project "$project_path" >> "$OUTPUT_LOG" 2>&1 & + PIDS+=("$!") +} + +start_dependencies +prebuild_solution "$SCRIPT_DIR/ContentBasedRouting.sln" +> "$OUTPUT_LOG" + +start_passive "$SCRIPT_DIR/src/ServiceConnect.Examples.ContentBasedRouting.PriorityConsumer/ServiceConnect.Examples.ContentBasedRouting.PriorityConsumer.csproj" +start_passive "$SCRIPT_DIR/src/ServiceConnect.Examples.ContentBasedRouting.StandardConsumer/ServiceConnect.Examples.ContentBasedRouting.StandardConsumer.csproj" + +if ! wait_for_ready; then + echo "ERROR: Consumers did not become ready within 30 seconds" + exit 1 +fi + +SC_EXAMPLES_PREMIUM_ORDER_ID="$PREMIUM_ORDER_ID" \ + SC_EXAMPLES_STANDARD_ORDER_ID="$STANDARD_ORDER_ID" \ + dotnet run --no-build --project "$SCRIPT_DIR/src/ServiceConnect.Examples.ContentBasedRouting.Publisher/ServiceConnect.Examples.ContentBasedRouting.Publisher.csproj" >> "$OUTPUT_LOG" 2>&1 & +PUBLISHER_PID=$! +PIDS+=("$PUBLISHER_PID") +wait "$PUBLISHER_PID" + +if ! wait_for_completion; then + echo "ERROR: Consumers did not process the expected routed events within 30 seconds" + exit 1 +fi + +if grep -Eq '^SUCCESS:priority-consumer:processed standard-order-' "$OUTPUT_LOG" 2>/dev/null; then + echo "ERROR: Priority consumer processed a standard order" + exit 1 +fi + +if grep -Eq '^SUCCESS:standard-consumer:processed premium-order-' "$OUTPUT_LOG" 2>/dev/null; then + echo "ERROR: Standard consumer processed a premium order" + exit 1 +fi diff --git a/examples/ContentBasedRouting/src/ServiceConnect.Examples.ContentBasedRouting.Contracts/PremiumOrderPlaced.cs b/examples/ContentBasedRouting/src/ServiceConnect.Examples.ContentBasedRouting.Contracts/PremiumOrderPlaced.cs new file mode 100644 index 000000000..12c7d2dd8 --- /dev/null +++ b/examples/ContentBasedRouting/src/ServiceConnect.Examples.ContentBasedRouting.Contracts/PremiumOrderPlaced.cs @@ -0,0 +1,8 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.ContentBasedRouting.Contracts; + +public sealed class PremiumOrderPlaced(Guid correlationId) : Message(correlationId) +{ + public string OrderId { get; init; } = string.Empty; +} diff --git a/examples/ContentBasedRouting/src/ServiceConnect.Examples.ContentBasedRouting.Contracts/ServiceConnect.Examples.ContentBasedRouting.Contracts.csproj b/examples/ContentBasedRouting/src/ServiceConnect.Examples.ContentBasedRouting.Contracts/ServiceConnect.Examples.ContentBasedRouting.Contracts.csproj new file mode 100644 index 000000000..02cd0ca30 --- /dev/null +++ b/examples/ContentBasedRouting/src/ServiceConnect.Examples.ContentBasedRouting.Contracts/ServiceConnect.Examples.ContentBasedRouting.Contracts.csproj @@ -0,0 +1,5 @@ + + + + + diff --git a/examples/ContentBasedRouting/src/ServiceConnect.Examples.ContentBasedRouting.Contracts/StandardOrderPlaced.cs b/examples/ContentBasedRouting/src/ServiceConnect.Examples.ContentBasedRouting.Contracts/StandardOrderPlaced.cs new file mode 100644 index 000000000..7a89012e5 --- /dev/null +++ b/examples/ContentBasedRouting/src/ServiceConnect.Examples.ContentBasedRouting.Contracts/StandardOrderPlaced.cs @@ -0,0 +1,8 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.ContentBasedRouting.Contracts; + +public sealed class StandardOrderPlaced(Guid correlationId) : Message(correlationId) +{ + public string OrderId { get; init; } = string.Empty; +} diff --git a/examples/ContentBasedRouting/src/ServiceConnect.Examples.ContentBasedRouting.PriorityConsumer/PremiumOrderHandler.cs b/examples/ContentBasedRouting/src/ServiceConnect.Examples.ContentBasedRouting.PriorityConsumer/PremiumOrderHandler.cs new file mode 100644 index 000000000..8e91edfc9 --- /dev/null +++ b/examples/ContentBasedRouting/src/ServiceConnect.Examples.ContentBasedRouting.PriorityConsumer/PremiumOrderHandler.cs @@ -0,0 +1,14 @@ +using ServiceConnect.Examples.ContentBasedRouting.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.ContentBasedRouting.PriorityConsumer; + +public sealed class PremiumOrderHandler : IMessageHandler +{ + public async Task HandleAsync(PremiumOrderPlaced message, IConsumeContext context, CancellationToken cancellationToken = default) + { + ConsoleStatus.Success("priority-consumer", $"processed {message.OrderId}"); + await Console.Out.FlushAsync(); + } +} diff --git a/examples/ContentBasedRouting/src/ServiceConnect.Examples.ContentBasedRouting.PriorityConsumer/Program.cs b/examples/ContentBasedRouting/src/ServiceConnect.Examples.ContentBasedRouting.PriorityConsumer/Program.cs new file mode 100644 index 000000000..be601b11e --- /dev/null +++ b/examples/ContentBasedRouting/src/ServiceConnect.Examples.ContentBasedRouting.PriorityConsumer/Program.cs @@ -0,0 +1,33 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.ContentBasedRouting.Contracts; +using ServiceConnect.Examples.ContentBasedRouting.PriorityConsumer; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Interfaces; + +var settings = ExampleSettingsLoader.Load(); +var queueName = Environment.GetEnvironmentVariable("SC_EXAMPLES_PRIORITY_QUEUE_NAME") ?? "priority-consumer"; + +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +var handlerReferences = new List +{ + new() { HandlerType = typeof(PremiumOrderHandler), MessageType = typeof(PremiumOrderPlaced) } +}; + +var services = new ServiceCollection(); +services.AddSingleton>(handlerReferences); +services.AddTransient, PremiumOrderHandler>(); +services.AddExampleBus(settings, queueName); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); +await bus.StartConsumingAsync(); +ConsoleStatus.Ready("priority-consumer"); +await Console.Out.FlushAsync(); +await Task.Delay(Timeout.InfiniteTimeSpan); diff --git a/examples/ContentBasedRouting/src/ServiceConnect.Examples.ContentBasedRouting.PriorityConsumer/ServiceConnect.Examples.ContentBasedRouting.PriorityConsumer.csproj b/examples/ContentBasedRouting/src/ServiceConnect.Examples.ContentBasedRouting.PriorityConsumer/ServiceConnect.Examples.ContentBasedRouting.PriorityConsumer.csproj new file mode 100644 index 000000000..b3cada219 --- /dev/null +++ b/examples/ContentBasedRouting/src/ServiceConnect.Examples.ContentBasedRouting.PriorityConsumer/ServiceConnect.Examples.ContentBasedRouting.PriorityConsumer.csproj @@ -0,0 +1,10 @@ + + + Exe + + + + + + + diff --git a/examples/ContentBasedRouting/src/ServiceConnect.Examples.ContentBasedRouting.Publisher/Program.cs b/examples/ContentBasedRouting/src/ServiceConnect.Examples.ContentBasedRouting.Publisher/Program.cs new file mode 100644 index 000000000..84ed100ae --- /dev/null +++ b/examples/ContentBasedRouting/src/ServiceConnect.Examples.ContentBasedRouting.Publisher/Program.cs @@ -0,0 +1,27 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.ContentBasedRouting.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Interfaces; + +var settings = ExampleSettingsLoader.Load(); +var premiumOrderId = Environment.GetEnvironmentVariable("SC_EXAMPLES_PREMIUM_ORDER_ID") ?? "premium-order-100"; +var standardOrderId = Environment.GetEnvironmentVariable("SC_EXAMPLES_STANDARD_ORDER_ID") ?? "standard-order-200"; + +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +var services = new ServiceCollection(); +services.AddSingleton>([]); +services.AddExampleBus(settings, "content-based-routing-publisher"); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); +await bus.PublishAsync(new PremiumOrderPlaced(Guid.NewGuid()) { OrderId = premiumOrderId }); +await bus.PublishAsync(new StandardOrderPlaced(Guid.NewGuid()) { OrderId = standardOrderId }); +ConsoleStatus.Success("content-based-routing-publisher", $"published {premiumOrderId} and {standardOrderId}"); +await Console.Out.FlushAsync(); diff --git a/examples/ContentBasedRouting/src/ServiceConnect.Examples.ContentBasedRouting.Publisher/ServiceConnect.Examples.ContentBasedRouting.Publisher.csproj b/examples/ContentBasedRouting/src/ServiceConnect.Examples.ContentBasedRouting.Publisher/ServiceConnect.Examples.ContentBasedRouting.Publisher.csproj new file mode 100644 index 000000000..b3cada219 --- /dev/null +++ b/examples/ContentBasedRouting/src/ServiceConnect.Examples.ContentBasedRouting.Publisher/ServiceConnect.Examples.ContentBasedRouting.Publisher.csproj @@ -0,0 +1,10 @@ + + + Exe + + + + + + + diff --git a/examples/ContentBasedRouting/src/ServiceConnect.Examples.ContentBasedRouting.StandardConsumer/Program.cs b/examples/ContentBasedRouting/src/ServiceConnect.Examples.ContentBasedRouting.StandardConsumer/Program.cs new file mode 100644 index 000000000..690b8a8be --- /dev/null +++ b/examples/ContentBasedRouting/src/ServiceConnect.Examples.ContentBasedRouting.StandardConsumer/Program.cs @@ -0,0 +1,33 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.ContentBasedRouting.Contracts; +using ServiceConnect.Examples.ContentBasedRouting.StandardConsumer; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Interfaces; + +var settings = ExampleSettingsLoader.Load(); +var queueName = Environment.GetEnvironmentVariable("SC_EXAMPLES_STANDARD_QUEUE_NAME") ?? "standard-consumer"; + +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +var handlerReferences = new List +{ + new() { HandlerType = typeof(StandardOrderHandler), MessageType = typeof(StandardOrderPlaced) } +}; + +var services = new ServiceCollection(); +services.AddSingleton>(handlerReferences); +services.AddTransient, StandardOrderHandler>(); +services.AddExampleBus(settings, queueName); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); +await bus.StartConsumingAsync(); +ConsoleStatus.Ready("standard-consumer"); +await Console.Out.FlushAsync(); +await Task.Delay(Timeout.InfiniteTimeSpan); diff --git a/examples/ContentBasedRouting/src/ServiceConnect.Examples.ContentBasedRouting.StandardConsumer/ServiceConnect.Examples.ContentBasedRouting.StandardConsumer.csproj b/examples/ContentBasedRouting/src/ServiceConnect.Examples.ContentBasedRouting.StandardConsumer/ServiceConnect.Examples.ContentBasedRouting.StandardConsumer.csproj new file mode 100644 index 000000000..b3cada219 --- /dev/null +++ b/examples/ContentBasedRouting/src/ServiceConnect.Examples.ContentBasedRouting.StandardConsumer/ServiceConnect.Examples.ContentBasedRouting.StandardConsumer.csproj @@ -0,0 +1,10 @@ + + + Exe + + + + + + + diff --git a/examples/ContentBasedRouting/src/ServiceConnect.Examples.ContentBasedRouting.StandardConsumer/StandardOrderHandler.cs b/examples/ContentBasedRouting/src/ServiceConnect.Examples.ContentBasedRouting.StandardConsumer/StandardOrderHandler.cs new file mode 100644 index 000000000..3d4ee2095 --- /dev/null +++ b/examples/ContentBasedRouting/src/ServiceConnect.Examples.ContentBasedRouting.StandardConsumer/StandardOrderHandler.cs @@ -0,0 +1,14 @@ +using ServiceConnect.Examples.ContentBasedRouting.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.ContentBasedRouting.StandardConsumer; + +public sealed class StandardOrderHandler : IMessageHandler +{ + public async Task HandleAsync(StandardOrderPlaced message, IConsumeContext context, CancellationToken cancellationToken = default) + { + ConsoleStatus.Success("standard-consumer", $"processed {message.OrderId}"); + await Console.Out.FlushAsync(); + } +} diff --git a/examples/CustomFilterAndMiddleware/CustomFilterAndMiddleware.slnx b/examples/CustomFilterAndMiddleware/CustomFilterAndMiddleware.slnx new file mode 100644 index 000000000..3e60ba873 --- /dev/null +++ b/examples/CustomFilterAndMiddleware/CustomFilterAndMiddleware.slnx @@ -0,0 +1,10 @@ + + + + + + + + + + diff --git a/examples/CustomFilterAndMiddleware/README.md b/examples/CustomFilterAndMiddleware/README.md new file mode 100644 index 000000000..ab3a27305 --- /dev/null +++ b/examples/CustomFilterAndMiddleware/README.md @@ -0,0 +1,132 @@ +# CustomFilterAndMiddleware sample + +Demonstrates the two ServiceConnect extension points that let you customise +the consume pipeline: **filters** (envelope-level pre/post hooks) and +**message-processing middleware** (handler-wrapping middleware that observes +the deserialised message). + +The worked scenario is broker-redelivery deduplication — the canonical use +case for the on-success filter stage. Implementing dedupe correctly requires +two filters, not one: + +- A `BeforeConsumingFilter` that consults a persistor and short-circuits when + the `MessageId` is already recorded. +- An `OnConsumedSuccessfullyFilter` that records the `MessageId` **only** if + the handler completed successfully. Recording before the handler runs (or + in an `AfterConsumingFilter`, which runs on both success and failure paths) + silently drops legitimate broker redeliveries after a handler crash. + +## How to run + +Requires Docker + .NET 10 SDK. + +```bash +./run.sh +``` + +This starts RabbitMQ in a container, builds the sender + consumer, runs the +consumer in the background, runs the sender, sleeps a few seconds, kills the +consumer, and prints the consumer log. + +## What you should see + +The sender publishes three messages: `order-1`, `crash-once`, `order-2`. +The consumer's log shows: + +- `LoggingTimingMiddleware` printing `→` and `←` markers around each handler + invocation with elapsed time. +- `crash-once` is delivered twice: the first attempt throws (the middleware + prints `THREW`), the broker redelivers, the second attempt succeeds. The + on-success filter records the id only on the second attempt. +- The `DedupeIncomingFilter` logs nothing because none of the three sender + messages is a redelivery of an *already-recorded* id (the handler's first + attempt at `crash-once` failed, so the id was not recorded — the redelivery + proceeds). + +To see the BeforeConsuming filter actually block a duplicate, manually run +`./run.sh` twice without restarting the consumer container — the second run's +sender will publish messages whose ids have already been recorded by the +first run's consumer (subject to consumer process restart caveats; see below). + +## Filter walkthrough + +`Filters/IDedupePersistor.cs` — the contract the sample's two filters share. +The atomic `TryInsertAsync` returns true if the id was new, false if a +concurrent caller already recorded it. This atomicity is the whole point: a +read-then-write pattern (`ContainsAsync` then `InsertAsync`) admits two +concurrent deliveries past the existence check before either records, +defeating dedupe under contention. + +`Filters/InMemoryDedupePersistor.cs` — a per-process implementation backed by +`ConcurrentDictionary.TryAdd`. Suitable for the sample only; does not survive +process restart and does not coordinate across replicas. + +`Filters/DedupeIncomingFilter.cs` — `BeforeConsuming` filter. Reads the +`MessageId` header, consults the persistor, returns `Stop` if present. + +`Filters/DedupeOnSuccessFilter.cs` — `OnConsumedSuccessfully` filter. Records +the id atomically. If the persistor reports the id was already present (a +race past the BeforeConsuming check), throws — the dispatcher returns +`Success=false` so the broker redelivers and the next attempt's +BeforeConsuming filter blocks. + +## Middleware walkthrough + +`Middleware/LoggingTimingMiddleware.cs` — wraps every handler invocation with +entry/exit log lines and a `Stopwatch`. Middleware differs from filters in +two ways: + +1. Middleware is **inside** the dispatch — it sees the deserialised message + instance, not just the envelope. +2. Middleware uses `next(...)` to invoke the next stage explicitly, allowing + pre- and post-handler logic in a single class. Filters short-circuit by + returning `FilterAction.Stop`; middleware short-circuits by not calling + `next`. + +Reach for middleware when you want to wrap the handler call with timing, +tracing, or transactional scoping. Reach for a filter when you want to make +an admission decision based on the envelope or its headers. + +## Production caveats + +The toy `InMemoryDedupePersistor` is **not** production-ready: + +- It does not survive process restart. A consumer pod that's killed mid-flight + loses every recorded id. +- It does not coordinate across consumer replicas. Two consumers behind the + same queue will each maintain their own dictionary. +- It has no expiry/eviction. Memory grows without bound. + +For real workloads, implement `IDedupePersistor` against a shared store with +an atomic insert primitive. Sketch for MongoDB: + +```csharp +public sealed class MongoDedupePersistor(IMongoCollection col) : IDedupePersistor +{ + public async Task ContainsAsync(Guid id, CancellationToken ct = default) + => await col.Find(p => p.Id == id).AnyAsync(ct); + + public async Task TryInsertAsync(Guid id, DateTime expiry, CancellationToken ct = default) + { + try + { + await col.InsertOneAsync(new ProcessedMessage { Id = id, Expiry = expiry }, cancellationToken: ct); + return true; + } + catch (MongoWriteException ex) when (ex.WriteError.Category == ServerErrorCategory.DuplicateKey) + { + return false; + } + } +} +``` + +Pair this with a unique index on `_id` and a TTL index on `Expiry`. The TTL +index handles cleanup; no separate cleanup hosted service needed. + +Handler-side idempotency remains the canonical answer where it's available +(idempotent business operations, natural upsert keys). The filter pattern +above is a belt-and-braces layer for handlers whose side effects can't be +made idempotent at the business level. + +See also: [Idempotency](https://github.com/R-Suite/ServiceConnect-CSharp/blob/master/website/src/content/docs/learn/operations/idempotency.mdx). diff --git a/examples/CustomFilterAndMiddleware/run.ps1 b/examples/CustomFilterAndMiddleware/run.ps1 new file mode 100644 index 000000000..1c4760b50 --- /dev/null +++ b/examples/CustomFilterAndMiddleware/run.ps1 @@ -0,0 +1,73 @@ +$ErrorActionPreference = 'Stop' +$PSNativeCommandUseErrorActionPreference = $true + +$consumerProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer/ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer.csproj' +$senderProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.CustomFilterAndMiddleware.Sender/ServiceConnect.Examples.CustomFilterAndMiddleware.Sender.csproj' +$OUTPUT_LOG = Join-Path $PSScriptRoot 'output.log' +$consumerProcess = $null + +function Wait-ForRabbitMQ { + $maxAttempts = 60 + $attempt = 0 + + while ($attempt -lt $maxAttempts) { + try { + docker exec custom-filter-rabbit rabbitmq-diagnostics -q ping 2>$null + if ($LASTEXITCODE -eq 0) { return $true } + } catch {} + + Start-Sleep -Seconds 1 + $attempt++ + } + + return $false +} + +function Wait-ForReady { + $timeout = 30 + $elapsed = 0 + + while ($elapsed -lt $timeout) { + if ((Test-Path $OUTPUT_LOG) -and + (Select-String -Path $OUTPUT_LOG -Pattern '^READY:custom-filter-consumer$' -Quiet)) { + return $true + } + + Start-Sleep -Milliseconds 500 + $elapsed += 0.5 + } + + return $false +} + +try { + docker run -d --rm --name custom-filter-rabbit -p 5672:5672 rabbitmq:3.13-management + + if (-not (Wait-ForRabbitMQ)) { + throw 'RabbitMQ did not become ready within 60 seconds' + } + + '' | Set-Content -Path $OUTPUT_LOG + + $consumerArgs = "dotnet run --project '$consumerProject' 2>&1 | Out-File -FilePath '$OUTPUT_LOG' -Append" + $consumerProcess = Start-Process pwsh -ArgumentList @('-NoProfile', '-Command', $consumerArgs) -PassThru -NoNewWindow + + if (-not (Wait-ForReady)) { + throw 'Consumer did not become ready within 30 seconds' + } + + dotnet run --project $senderProject 2>&1 | Out-File -FilePath $OUTPUT_LOG -Append + + Start-Sleep -Seconds 5 +} +finally { + if ($null -ne $consumerProcess -and -not $consumerProcess.HasExited) { + Stop-Process -Id $consumerProcess.Id -Force -ErrorAction SilentlyContinue + $consumerProcess.WaitForExit() + } + + docker rm -f custom-filter-rabbit 2>$null | Out-Null + + Write-Host '--- Consumer log ---' + if (Test-Path $OUTPUT_LOG) { Get-Content $OUTPUT_LOG } +} diff --git a/examples/CustomFilterAndMiddleware/run.sh b/examples/CustomFilterAndMiddleware/run.sh new file mode 100755 index 000000000..22e0d2b52 --- /dev/null +++ b/examples/CustomFilterAndMiddleware/run.sh @@ -0,0 +1,59 @@ +#!/usr/bin/env bash +set -euo pipefail + +SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)" +source "$SCRIPT_DIR/../scripts/common.sh" + +OUTPUT_LOG="$SCRIPT_DIR/output.log" +PIDS=() + +cleanup() { + for pid in "${PIDS[@]:-}"; do + kill "$pid" 2>/dev/null || true + done + + for pid in "${PIDS[@]:-}"; do + wait "$pid" 2>/dev/null || true + done +} + +trap cleanup EXIT + +wait_for_ready() { + local max_attempts=60 + local attempt=0 + + while [ $attempt -lt $max_attempts ]; do + if grep -q '^READY:custom-filter-consumer$' "$OUTPUT_LOG" 2>/dev/null; then + return 0 + fi + + sleep 0.5 + attempt=$((attempt + 1)) + done + + return 1 +} + +start_dependencies +prebuild_solution "$SCRIPT_DIR/CustomFilterAndMiddleware.slnx" +> "$OUTPUT_LOG" + +dotnet run --no-build --project "$SCRIPT_DIR/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer/ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer.csproj" >> "$OUTPUT_LOG" 2>&1 & +CONSUMER_PID=$! +PIDS+=("$CONSUMER_PID") + +if ! wait_for_ready; then + echo "ERROR: Consumer did not become ready within 30 seconds" + exit 1 +fi + +dotnet run --no-build --project "$SCRIPT_DIR/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Sender/ServiceConnect.Examples.CustomFilterAndMiddleware.Sender.csproj" >> "$OUTPUT_LOG" 2>&1 + +sleep 5 + +kill "$CONSUMER_PID" 2>/dev/null || true +wait "$CONSUMER_PID" 2>/dev/null || true + +echo "--- Consumer log ---" +cat "$OUTPUT_LOG" diff --git a/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer/Filters/DedupeIncomingFilter.cs b/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer/Filters/DedupeIncomingFilter.cs new file mode 100644 index 000000000..3831fcd13 --- /dev/null +++ b/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer/Filters/DedupeIncomingFilter.cs @@ -0,0 +1,32 @@ +using Microsoft.Extensions.Logging; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer.Filters; + +/// +/// BeforeConsuming filter. Consults the persistor; if the MessageId is already +/// recorded, returns Stop so the dispatcher acks-and-drops the redelivery +/// without invoking the handler. +/// +public sealed class DedupeIncomingFilter( + IDedupePersistor persistor, + ILogger logger) : IFilter +{ + public async Task ProcessAsync(Envelope envelope, CancellationToken cancellationToken = default) + { + if (!envelope.Headers.TryGetValue("MessageId", out var raw) || + !Guid.TryParse(HeaderDecoder.Decode(raw), out var messageId)) + { + // No id, can't dedupe — let the message through. + return FilterAction.Continue; + } + + if (await persistor.ContainsAsync(messageId, cancellationToken).ConfigureAwait(false)) + { + logger.LogInformation("Dedupe: blocking duplicate delivery of MessageId {MessageId}", messageId); + return FilterAction.Stop; + } + + return FilterAction.Continue; + } +} diff --git a/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer/Filters/DedupeOnSuccessFilter.cs b/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer/Filters/DedupeOnSuccessFilter.cs new file mode 100644 index 000000000..0da1ea43d --- /dev/null +++ b/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer/Filters/DedupeOnSuccessFilter.cs @@ -0,0 +1,43 @@ +using Microsoft.Extensions.Logging; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer.Filters; + +/// +/// OnConsumedSuccessfully filter. Only fires after the handler has completed +/// successfully — failures and unhandled messages skip this stage. Records the +/// MessageId atomically; if the persistor reports the id was already present +/// (e.g. two concurrent deliveries raced past the BeforeConsuming check), the +/// filter throws so the dispatcher returns Success=false and the broker +/// redelivers, letting the next attempt's BeforeConsuming filter block. +/// +public sealed class DedupeOnSuccessFilter( + IDedupePersistor persistor, + ILogger logger) : IFilter +{ + private static readonly TimeSpan Retention = TimeSpan.FromHours(24); + + public async Task ProcessAsync(Envelope envelope, CancellationToken cancellationToken = default) + { + if (!envelope.Headers.TryGetValue("MessageId", out var raw) || + !Guid.TryParse(HeaderDecoder.Decode(raw), out var messageId)) + { + return FilterAction.Continue; + } + + var inserted = await persistor.TryInsertAsync(messageId, DateTime.UtcNow + Retention, cancellationToken) + .ConfigureAwait(false); + + if (!inserted) + { + // BeforeConsuming and OnSuccess raced. Throwing here makes the dispatcher + // return Success=false → broker redelivers → next attempt's BeforeConsuming + // filter sees the id and returns Stop. + throw new InvalidOperationException( + $"Concurrent delivery of MessageId {messageId} already recorded; redelivery will dedupe."); + } + + logger.LogDebug("Dedupe: recorded MessageId {MessageId}", messageId); + return FilterAction.Continue; + } +} diff --git a/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer/Filters/IDedupePersistor.cs b/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer/Filters/IDedupePersistor.cs new file mode 100644 index 000000000..7d11be164 --- /dev/null +++ b/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer/Filters/IDedupePersistor.cs @@ -0,0 +1,16 @@ +namespace ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer.Filters; + +/// +/// Sample dedupe persistor contract. The atomic +/// returns true on first insert, false on duplicate — letting the on-success +/// filter make the consume-side dedup decision in a single round trip. +/// +public interface IDedupePersistor +{ + Task ContainsAsync(Guid messageId, CancellationToken cancellationToken = default); + + /// + /// Atomic insert. Returns true if the id was new, false if it was already present. + /// + Task TryInsertAsync(Guid messageId, DateTime expiry, CancellationToken cancellationToken = default); +} diff --git a/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer/Filters/InMemoryDedupePersistor.cs b/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer/Filters/InMemoryDedupePersistor.cs new file mode 100644 index 000000000..ffcda9b27 --- /dev/null +++ b/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer/Filters/InMemoryDedupePersistor.cs @@ -0,0 +1,19 @@ +using System.Collections.Concurrent; + +namespace ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer.Filters; + +/// +/// Per-process dedupe persistor. Suitable for the sample only — does not +/// survive process restart and does not coordinate across replicas. +/// For production, see the README's "scaling out" appendix. +/// +public sealed class InMemoryDedupePersistor : IDedupePersistor +{ + private readonly ConcurrentDictionary _seen = new(); + + public Task ContainsAsync(Guid messageId, CancellationToken cancellationToken = default) + => Task.FromResult(_seen.ContainsKey(messageId)); + + public Task TryInsertAsync(Guid messageId, DateTime expiry, CancellationToken cancellationToken = default) + => Task.FromResult(_seen.TryAdd(messageId, expiry)); +} diff --git a/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer/Middleware/LoggingTimingMiddleware.cs b/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer/Middleware/LoggingTimingMiddleware.cs new file mode 100644 index 000000000..daaa49d43 --- /dev/null +++ b/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer/Middleware/LoggingTimingMiddleware.cs @@ -0,0 +1,42 @@ +using System.Diagnostics; +using Microsoft.Extensions.Logging; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer.Middleware; + +/// +/// Middleware demonstration. Wraps every handler invocation with structured +/// log entries and a timing measurement. Unlike a filter, middleware runs +/// inline around the handler and observes the message bytes / type / instance. +/// +public sealed class LoggingTimingMiddleware(ILogger logger) : IMessageProcessingMiddleware +{ + public async Task ProcessAsync( + ReadOnlyMemory messageBytes, Type messageType, object message, + IDictionary headers, Envelope envelope, + MessageProcessingDelegate next, + CancellationToken cancellationToken) + { + logger.LogInformation("→ Handler entry for {MessageType}", messageType.Name); + var sw = Stopwatch.StartNew(); + + try + { + var result = await next(messageBytes, messageType, message, headers, envelope, cancellationToken) + .ConfigureAwait(false); + sw.Stop(); + logger.LogInformation( + "← Handler exit for {MessageType} in {ElapsedMs}ms (Success={Success})", + messageType.Name, sw.ElapsedMilliseconds, result.Success); + return result; + } + catch + { + sw.Stop(); + logger.LogInformation( + "← Handler exit for {MessageType} in {ElapsedMs}ms (THREW)", + messageType.Name, sw.ElapsedMilliseconds); + throw; + } + } +} diff --git a/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer/OrderPlacedHandler.cs b/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer/OrderPlacedHandler.cs new file mode 100644 index 000000000..98deb39d6 --- /dev/null +++ b/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer/OrderPlacedHandler.cs @@ -0,0 +1,24 @@ +using Microsoft.Extensions.Logging; +using ServiceConnect.Examples.CustomFilterAndMiddleware.Contracts; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer; + +public sealed class OrderPlacedHandler(ILogger logger) : IMessageHandler +{ + private static int _attemptsForCrashOrder; + + public Task HandleAsync(OrderPlaced message, IConsumeContext context, CancellationToken cancellationToken = default) + { + // Demonstrate scenario 2 (handler-crash → broker redelivery → dedup filter does NOT block). + // The first time we see "crash-once", throw — the broker redelivers and the second attempt succeeds. + if (message.OrderId == "crash-once" && Interlocked.Exchange(ref _attemptsForCrashOrder, 1) == 0) + { + logger.LogWarning("Throwing on first delivery of crash-once to demonstrate redelivery handling"); + throw new InvalidOperationException("simulated handler crash"); + } + + logger.LogInformation("Handled OrderPlaced {OrderId} (amount {Amount:C})", message.OrderId, message.Amount); + return Task.CompletedTask; + } +} diff --git a/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer/Program.cs b/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer/Program.cs new file mode 100644 index 000000000..2dc009bfc --- /dev/null +++ b/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer/Program.cs @@ -0,0 +1,52 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Hosting; +using Microsoft.Extensions.Logging; +using ServiceConnect; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer; +using ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer.Filters; +using ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer.Middleware; + +var host = Host.CreateDefaultBuilder(args) + .ConfigureLogging(logging => + { + logging.ClearProviders(); + logging.AddSimpleConsole(o => o.SingleLine = true); + }) + .ConfigureServices(services => + { + services.AddSingleton(); + services.AddTransient(); + services.AddTransient(); + services.AddTransient(); + services.AddTransient(); + + services.AddServiceConnect(builder => + { + builder.ConfigureQueues(queues => + { + queues.QueueName = "custom-filter-and-middleware-sample"; + }); + builder.UseRabbitMQ(transport => + { + transport.Host = Environment.GetEnvironmentVariable("RABBITMQ_HOST") ?? "localhost"; + transport.SslEnabled = false; // local-dev plaintext; production must use TLS + }); + builder.AddBeforeConsumingFilter(); + builder.AddOnConsumedSuccessfullyFilter(); + builder.AddMessageProcessingMiddleware(); + }); + }) + .Build(); + +// Signal readiness after all hosted services (including BusHostedService) have +// started, so run.sh can proceed to launch the sender without a fixed sleep. +host.Services.GetRequiredService() + .ApplicationStarted.Register(() => + { + Console.WriteLine("READY:custom-filter-consumer"); + Console.Out.Flush(); + }); + +await host.RunAsync(); diff --git a/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer/ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer.csproj b/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer/ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer.csproj new file mode 100644 index 000000000..cf8684b5e --- /dev/null +++ b/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer/ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer.csproj @@ -0,0 +1,20 @@ + + + + Exe + net10.0 + enable + enable + + + + + + + + + + + + + diff --git a/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Contracts/OrderPlaced.cs b/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Contracts/OrderPlaced.cs new file mode 100644 index 000000000..d09c105f4 --- /dev/null +++ b/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Contracts/OrderPlaced.cs @@ -0,0 +1,9 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.CustomFilterAndMiddleware.Contracts; + +public sealed class OrderPlaced(Guid correlationId) : Message(correlationId) +{ + public string OrderId { get; init; } = string.Empty; + public decimal Amount { get; init; } +} diff --git a/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Contracts/ServiceConnect.Examples.CustomFilterAndMiddleware.Contracts.csproj b/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Contracts/ServiceConnect.Examples.CustomFilterAndMiddleware.Contracts.csproj new file mode 100644 index 000000000..b62eaf083 --- /dev/null +++ b/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Contracts/ServiceConnect.Examples.CustomFilterAndMiddleware.Contracts.csproj @@ -0,0 +1,13 @@ + + + + net10.0 + enable + enable + + + + + + + diff --git a/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Sender/Program.cs b/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Sender/Program.cs new file mode 100644 index 000000000..fb8608e18 --- /dev/null +++ b/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Sender/Program.cs @@ -0,0 +1,54 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Hosting; +using ServiceConnect; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.Examples.CustomFilterAndMiddleware.Contracts; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; + +using var host = Host.CreateDefaultBuilder(args) + .ConfigureServices(services => + { + services.AddServiceConnect(builder => + { + builder.ConfigureQueues(queues => + { + queues.QueueName = "custom-filter-and-middleware-sender"; + }); + builder.UseRabbitMQ(transport => + { + transport.Host = Environment.GetEnvironmentVariable("RABBITMQ_HOST") ?? "localhost"; + transport.SslEnabled = false; // local-dev plaintext; production must use TLS + }); + }); + }) + .Build(); + +await host.StartAsync(); + +var bus = host.Services.GetRequiredService(); + +var endpoint = "custom-filter-and-middleware-sample"; + +// Note: OrderPlaced uses a primary-ctor `correlationId` (Message base class). +// The sample uses a fresh Guid per message; correlation tracing is out of scope here. + +// Scenario 1: a normal message — handler runs, on-success filter records. +await bus.SendAsync( + new OrderPlaced(Guid.NewGuid()) { OrderId = "order-1", Amount = 42.50m }, + new SendOptions { EndPoint = endpoint }); + +// Scenario 2: handler crashes once, broker redelivers, second attempt succeeds. +// On-success does NOT record on the failed first attempt; redelivery proceeds. +await bus.SendAsync( + new OrderPlaced(Guid.NewGuid()) { OrderId = "crash-once", Amount = 99.00m }, + new SendOptions { EndPoint = endpoint }); + +// One more normal message so the consumer log shows the timing middleware repeatedly. +await bus.SendAsync( + new OrderPlaced(Guid.NewGuid()) { OrderId = "order-2", Amount = 7.00m }, + new SendOptions { EndPoint = endpoint }); + +Console.WriteLine("Sender: published three messages, exiting."); +await host.StopAsync(); diff --git a/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Sender/ServiceConnect.Examples.CustomFilterAndMiddleware.Sender.csproj b/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Sender/ServiceConnect.Examples.CustomFilterAndMiddleware.Sender.csproj new file mode 100644 index 000000000..cf8684b5e --- /dev/null +++ b/examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Sender/ServiceConnect.Examples.CustomFilterAndMiddleware.Sender.csproj @@ -0,0 +1,20 @@ + + + + Exe + net10.0 + enable + enable + + + + + + + + + + + + + diff --git a/examples/Directory.Build.props b/examples/Directory.Build.props new file mode 100644 index 000000000..7b7641958 --- /dev/null +++ b/examples/Directory.Build.props @@ -0,0 +1,25 @@ + + + net10.0 + 14.0 + enable + enable + true + true + + false + + + + + + + all + runtime; build; native; contentfiles; analyzers + + + diff --git a/examples/ExampleSupport/Bootstrap/ConsoleStatus.cs b/examples/ExampleSupport/Bootstrap/ConsoleStatus.cs new file mode 100644 index 000000000..8a5d521be --- /dev/null +++ b/examples/ExampleSupport/Bootstrap/ConsoleStatus.cs @@ -0,0 +1,20 @@ +namespace ServiceConnect.Examples.Support.Bootstrap; + +public static class ConsoleStatus +{ + public static void Ready(string endpointName) => Console.WriteLine($"READY:{Sanitize(endpointName)}"); + + public static void Success(string endpointName, string detail) => + Console.WriteLine($"SUCCESS:{Sanitize(endpointName)}:{Sanitize(detail)}"); + + public static void Error(string endpointName, Exception exception) => + Console.WriteLine($"ERROR:{Sanitize(endpointName)}:{Sanitize(exception.Message)}"); + + private static string Sanitize(string value) + { + return value + .Replace(':', ';') + .Replace("\r", " ") + .Replace("\n", " "); + } +} diff --git a/examples/ExampleSupport/Bootstrap/DependencyWaiter.cs b/examples/ExampleSupport/Bootstrap/DependencyWaiter.cs new file mode 100644 index 000000000..6b8b57cc1 --- /dev/null +++ b/examples/ExampleSupport/Bootstrap/DependencyWaiter.cs @@ -0,0 +1,113 @@ +using MongoDB.Driver; +using RabbitMQ.Client; + +namespace ServiceConnect.Examples.Support.Bootstrap; + +public static class DependencyWaiter +{ + public static Task WaitForRabbitMqAsync( + string host, + int port, + string username, + string password, + CancellationToken cancellationToken) + { + ArgumentException.ThrowIfNullOrWhiteSpace(host); + ArgumentOutOfRangeException.ThrowIfNegativeOrZero(port); + ArgumentException.ThrowIfNullOrWhiteSpace(username); + ArgumentException.ThrowIfNullOrWhiteSpace(password); + + return WaitForAsync( + async () => + { + var factory = new ConnectionFactory + { + HostName = host, + Port = port, + UserName = username, + Password = password + }; + + await using var connection = await factory.CreateConnectionAsync(cancellationToken); + }, + "Timed out waiting for RabbitMQ.", + IsPermanentRabbitMqFailure, + cancellationToken); + } + + public static Task WaitForMongoDbAsync(string connectionString, CancellationToken cancellationToken) + { + ArgumentException.ThrowIfNullOrWhiteSpace(connectionString); + + return WaitForAsync( + async () => + { + var client = new MongoClient(connectionString); + using var cursor = await client.ListDatabaseNamesAsync(cancellationToken: cancellationToken); + await cursor.MoveNextAsync(cancellationToken); + }, + "Timed out waiting for MongoDB.", + IsPermanentMongoDbFailure, + cancellationToken); + } + + private static async Task WaitForAsync( + Func probe, + string timeoutMessage, + Func isPermanentFailure, + CancellationToken cancellationToken) + { + var started = DateTimeOffset.UtcNow; + Exception? lastException = null; + + while (DateTimeOffset.UtcNow - started < TimeSpan.FromSeconds(30)) + { + cancellationToken.ThrowIfCancellationRequested(); + + try + { + await probe(); + return; + } + catch (Exception ex) when (!cancellationToken.IsCancellationRequested) + { + if (isPermanentFailure(ex)) + { + throw; + } + + lastException = ex; + await Task.Delay(TimeSpan.FromMilliseconds(500), cancellationToken); + } + } + + throw new TimeoutException(timeoutMessage, lastException); + } + + private static bool IsPermanentRabbitMqFailure(Exception exception) + { + return exception is ArgumentException or FormatException + || ContainsException(exception, "AuthenticationFailureException") + || ContainsException(exception, "PossibleAuthenticationFailureException"); + } + + private static bool IsPermanentMongoDbFailure(Exception exception) + { + return exception is ArgumentException or FormatException or MongoConfigurationException + || ContainsException(exception, nameof(MongoAuthenticationException)) + || exception is MongoCommandException { Code: 13 or 18 }; + } + + private static bool ContainsException(Exception exception, string typeName) + { + for (Exception? current = exception; current is not null; current = current.InnerException) + { + if (string.Equals(current.GetType().Name, typeName, StringComparison.Ordinal)) + { + return true; + } + } + + return false; + } +} diff --git a/examples/ExampleSupport/Bootstrap/ExampleBusFactory.cs b/examples/ExampleSupport/Bootstrap/ExampleBusFactory.cs new file mode 100644 index 000000000..826df845a --- /dev/null +++ b/examples/ExampleSupport/Bootstrap/ExampleBusFactory.cs @@ -0,0 +1,58 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Persistence.MongoDb; + +namespace ServiceConnect.Examples.Support.Bootstrap; + +public static class ExampleBusFactory +{ + public static IServiceCollection AddExampleBus( + this IServiceCollection services, + ExampleSettings settings, + string queueName, + bool useMongoDb = false, + string? databaseName = null, + Action? configureQueues = null, + Action? configureBuilder = null) + { + services.AddLogging(); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(transport => + { + transport.Host = settings.RabbitMqHost; + transport.Username = settings.RabbitMqUsername; + transport.Password = settings.RabbitMqPassword; + transport.SetClientSetting("Port", settings.RabbitMqPort); + transport.SetClientSetting("RetryCount", 3); + transport.SetClientSetting("RetrySeconds", 1); + transport.SslEnabled = false; // local-dev plaintext; production must use TLS + }); + + builder.ConfigureQueues(queues => + { + queues.QueueName = queueName; + configureQueues?.Invoke(queues); + }); + builder.ConfigureBus(bus => bus.ScanForMessageHandlers = false); + + if (useMongoDb) + { + builder.UseMongoDbPersistence(options => + { + options.ConnectionString = settings.MongoConnectionString; + options.DatabaseName = databaseName ?? queueName.Replace('-', '_'); + }); + } + + configureBuilder?.Invoke(builder); + }); + + return services; + } +} diff --git a/examples/ExampleSupport/Configuration/ExampleSettings.cs b/examples/ExampleSupport/Configuration/ExampleSettings.cs new file mode 100644 index 000000000..570568e72 --- /dev/null +++ b/examples/ExampleSupport/Configuration/ExampleSettings.cs @@ -0,0 +1,10 @@ +namespace ServiceConnect.Examples.Support.Configuration; + +public sealed class ExampleSettings +{ + public string RabbitMqHost { get; init; } = "localhost"; + public int RabbitMqPort { get; init; } = 5672; + public string RabbitMqUsername { get; init; } = "guest"; + public string RabbitMqPassword { get; init; } = "guest"; + public string MongoConnectionString { get; init; } = "mongodb://localhost:27017"; +} diff --git a/examples/ExampleSupport/Configuration/ExampleSettingsLoader.cs b/examples/ExampleSupport/Configuration/ExampleSettingsLoader.cs new file mode 100644 index 000000000..aa2cfad0c --- /dev/null +++ b/examples/ExampleSupport/Configuration/ExampleSettingsLoader.cs @@ -0,0 +1,34 @@ +using Microsoft.Extensions.Configuration; + +namespace ServiceConnect.Examples.Support.Configuration; + +public static class ExampleSettingsLoader +{ + public static ExampleSettings Load() + { + var config = new ConfigurationBuilder() + .AddJsonFile(Path.Combine(AppContext.BaseDirectory, "appsettings.json"), optional: true) + .AddEnvironmentVariables(prefix: "SC_EXAMPLES_") + .Build(); + + return new ExampleSettings + { + RabbitMqHost = GetString(config, "RabbitMqHost") ?? "localhost", + RabbitMqPort = GetInt(config, "RabbitMqPort") ?? 5672, + RabbitMqUsername = GetString(config, "RabbitMqUsername") ?? "guest", + RabbitMqPassword = GetString(config, "RabbitMqPassword") ?? "guest", + MongoConnectionString = GetString(config, "MongoConnectionString") ?? "mongodb://localhost:27017" + }; + } + + private static string? GetString(IConfiguration configuration, string key) + { + return configuration[$"Examples:{key}"] ?? configuration[key]; + } + + private static int? GetInt(IConfiguration configuration, string key) + { + var value = GetString(configuration, key); + return int.TryParse(value, out var parsed) ? parsed : null; + } +} diff --git a/examples/ExampleSupport/ServiceConnect.Examples.Support.csproj b/examples/ExampleSupport/ServiceConnect.Examples.Support.csproj new file mode 100644 index 000000000..aa5f97b05 --- /dev/null +++ b/examples/ExampleSupport/ServiceConnect.Examples.Support.csproj @@ -0,0 +1,16 @@ + + + + + + + + + + + + + + + + diff --git a/examples/Filters/Filters.sln b/examples/Filters/Filters.sln new file mode 100644 index 000000000..65a18d75b --- /dev/null +++ b/examples/Filters/Filters.sln @@ -0,0 +1,69 @@ + +Microsoft Visual Studio Solution File, Format Version 12.00 +# Visual Studio Version 17 +VisualStudioVersion = 17.0.31903.59 +MinimumVisualStudioVersion = 10.0.40219.1 +Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{4133EA5A-CF25-4F00-B282-5D23D57A01BF}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect.Examples.Filters.Contracts", "src\ServiceConnect.Examples.Filters.Contracts\ServiceConnect.Examples.Filters.Contracts.csproj", "{AF35ABCA-0558-4A15-8989-67B07481A509}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect.Examples.Filters.Sender", "src\ServiceConnect.Examples.Filters.Sender\ServiceConnect.Examples.Filters.Sender.csproj", "{66C717A1-4997-4FAA-8CC9-7B04D860532F}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect.Examples.Filters.Consumer", "src\ServiceConnect.Examples.Filters.Consumer\ServiceConnect.Examples.Filters.Consumer.csproj", "{F20DCDDB-5C54-492C-98B7-1A82B6610F13}" +EndProject +Global + GlobalSection(SolutionConfigurationPlatforms) = preSolution + Debug|Any CPU = Debug|Any CPU + Debug|x64 = Debug|x64 + Debug|x86 = Debug|x86 + Release|Any CPU = Release|Any CPU + Release|x64 = Release|x64 + Release|x86 = Release|x86 + EndGlobalSection + GlobalSection(ProjectConfigurationPlatforms) = postSolution + {AF35ABCA-0558-4A15-8989-67B07481A509}.Debug|Any CPU.ActiveCfg = Debug|Any CPU + {AF35ABCA-0558-4A15-8989-67B07481A509}.Debug|Any CPU.Build.0 = Debug|Any CPU + {AF35ABCA-0558-4A15-8989-67B07481A509}.Debug|x64.ActiveCfg = Debug|Any CPU + {AF35ABCA-0558-4A15-8989-67B07481A509}.Debug|x64.Build.0 = Debug|Any CPU + {AF35ABCA-0558-4A15-8989-67B07481A509}.Debug|x86.ActiveCfg = Debug|Any CPU + {AF35ABCA-0558-4A15-8989-67B07481A509}.Debug|x86.Build.0 = Debug|Any CPU + {AF35ABCA-0558-4A15-8989-67B07481A509}.Release|Any CPU.ActiveCfg = Release|Any CPU + {AF35ABCA-0558-4A15-8989-67B07481A509}.Release|Any CPU.Build.0 = Release|Any CPU + {AF35ABCA-0558-4A15-8989-67B07481A509}.Release|x64.ActiveCfg = Release|Any CPU + {AF35ABCA-0558-4A15-8989-67B07481A509}.Release|x64.Build.0 = Release|Any CPU + {AF35ABCA-0558-4A15-8989-67B07481A509}.Release|x86.ActiveCfg = Release|Any CPU + {AF35ABCA-0558-4A15-8989-67B07481A509}.Release|x86.Build.0 = Release|Any CPU + {66C717A1-4997-4FAA-8CC9-7B04D860532F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU + {66C717A1-4997-4FAA-8CC9-7B04D860532F}.Debug|Any CPU.Build.0 = Debug|Any CPU + {66C717A1-4997-4FAA-8CC9-7B04D860532F}.Debug|x64.ActiveCfg = Debug|Any CPU + {66C717A1-4997-4FAA-8CC9-7B04D860532F}.Debug|x64.Build.0 = Debug|Any CPU + {66C717A1-4997-4FAA-8CC9-7B04D860532F}.Debug|x86.ActiveCfg = Debug|Any CPU + {66C717A1-4997-4FAA-8CC9-7B04D860532F}.Debug|x86.Build.0 = Debug|Any CPU + {66C717A1-4997-4FAA-8CC9-7B04D860532F}.Release|Any CPU.ActiveCfg = Release|Any CPU + {66C717A1-4997-4FAA-8CC9-7B04D860532F}.Release|Any CPU.Build.0 = Release|Any CPU + {66C717A1-4997-4FAA-8CC9-7B04D860532F}.Release|x64.ActiveCfg = Release|Any CPU + {66C717A1-4997-4FAA-8CC9-7B04D860532F}.Release|x64.Build.0 = Release|Any CPU + {66C717A1-4997-4FAA-8CC9-7B04D860532F}.Release|x86.ActiveCfg = Release|Any CPU + {66C717A1-4997-4FAA-8CC9-7B04D860532F}.Release|x86.Build.0 = Release|Any CPU + {F20DCDDB-5C54-492C-98B7-1A82B6610F13}.Debug|Any CPU.ActiveCfg = Debug|Any CPU + {F20DCDDB-5C54-492C-98B7-1A82B6610F13}.Debug|Any CPU.Build.0 = Debug|Any CPU + {F20DCDDB-5C54-492C-98B7-1A82B6610F13}.Debug|x64.ActiveCfg = Debug|Any CPU + {F20DCDDB-5C54-492C-98B7-1A82B6610F13}.Debug|x64.Build.0 = Debug|Any CPU + {F20DCDDB-5C54-492C-98B7-1A82B6610F13}.Debug|x86.ActiveCfg = Debug|Any CPU + {F20DCDDB-5C54-492C-98B7-1A82B6610F13}.Debug|x86.Build.0 = Debug|Any CPU + {F20DCDDB-5C54-492C-98B7-1A82B6610F13}.Release|Any CPU.ActiveCfg = Release|Any CPU + {F20DCDDB-5C54-492C-98B7-1A82B6610F13}.Release|Any CPU.Build.0 = Release|Any CPU + {F20DCDDB-5C54-492C-98B7-1A82B6610F13}.Release|x64.ActiveCfg = Release|Any CPU + {F20DCDDB-5C54-492C-98B7-1A82B6610F13}.Release|x64.Build.0 = Release|Any CPU + {F20DCDDB-5C54-492C-98B7-1A82B6610F13}.Release|x86.ActiveCfg = Release|Any CPU + {F20DCDDB-5C54-492C-98B7-1A82B6610F13}.Release|x86.Build.0 = Release|Any CPU + EndGlobalSection + GlobalSection(SolutionProperties) = preSolution + HideSolutionNode = FALSE + EndGlobalSection + GlobalSection(NestedProjects) = preSolution + {AF35ABCA-0558-4A15-8989-67B07481A509} = {4133EA5A-CF25-4F00-B282-5D23D57A01BF} + {66C717A1-4997-4FAA-8CC9-7B04D860532F} = {4133EA5A-CF25-4F00-B282-5D23D57A01BF} + {F20DCDDB-5C54-492C-98B7-1A82B6610F13} = {4133EA5A-CF25-4F00-B282-5D23D57A01BF} + EndGlobalSection +EndGlobal diff --git a/examples/Filters/README.md b/examples/Filters/README.md new file mode 100644 index 000000000..a4273ff1d --- /dev/null +++ b/examples/Filters/README.md @@ -0,0 +1,51 @@ +# Filters + +## Overview + +Send one message through an outgoing filter that stamps a custom trace header before the consumer receives it. + +## Participants + +- `ServiceConnect.Examples.Filters.Sender` +- `ServiceConnect.Examples.Filters.Consumer` +- `TraceHeaderFilter` + +## Message Flow + +```mermaid +sequenceDiagram + participant Sender + participant TraceHeaderFilter + participant Consumer + Sender->>TraceHeaderFilter: FilteredNotification(MessageText="filter applied") + TraceHeaderFilter->>TraceHeaderFilter: add X-Trace-Id=trace-001 + TraceHeaderFilter->>Consumer: FilteredNotification + X-Trace-Id +``` + +## Prerequisites + +`docker compose -f ../docker-compose.yml up -d` + +## Run This Example + +`bash run.sh` + +## Run Manually + +Run the consumer first, then the sender. + +`SC_EXAMPLES_QUEUE_NAME=filters-consumer-manual dotnet run --project src/ServiceConnect.Examples.Filters.Consumer/ServiceConnect.Examples.Filters.Consumer.csproj` + +`SC_EXAMPLES_QUEUE_NAME=filters-consumer-manual dotnet run --project src/ServiceConnect.Examples.Filters.Sender/ServiceConnect.Examples.Filters.Sender.csproj` + +## Expected Output + +`READY:filters-consumer` + +`SUCCESS:filters-sender:sent filter applied` + +`SUCCESS:filters-consumer:trace trace-001` + +## What To Notice + +The sender does not set the trace header directly on the send call. The outgoing filter centralizes that concern, so the consumer sees the stamped header without the message contract needing a dedicated trace property. diff --git a/examples/Filters/run.ps1 b/examples/Filters/run.ps1 new file mode 100644 index 000000000..a1689bb23 --- /dev/null +++ b/examples/Filters/run.ps1 @@ -0,0 +1,70 @@ +$ErrorActionPreference = 'Stop' +$PSNativeCommandUseErrorActionPreference = $true + +. "$PSScriptRoot/../scripts/common.ps1" + +$consumerProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.Filters.Consumer/ServiceConnect.Examples.Filters.Consumer.csproj' +$senderProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.Filters.Sender/ServiceConnect.Examples.Filters.Sender.csproj' +$OUTPUT_LOG = Join-Path $PSScriptRoot 'output.log' +$runId = [DateTimeOffset]::UtcNow.ToUnixTimeMilliseconds().ToString() + '-' + [Guid]::NewGuid().ToString('N') +$queueName = "filters-consumer-$runId" +$consumerProcess = $null + +function Wait-ForReady { + $timeout = 30 + $elapsed = 0 + + while ($elapsed -lt $timeout) { + if ((Test-Path $OUTPUT_LOG) -and + (Select-String -Path $OUTPUT_LOG -Pattern '^READY:filters-consumer$' -Quiet)) { + return $true + } + + Start-Sleep -Milliseconds 500 + $elapsed += 0.5 + } + + return $false +} + +function Wait-ForSuccess { + $timeout = 30 + $elapsed = 0 + + while ($elapsed -lt $timeout) { + if ((Test-Path $OUTPUT_LOG) -and + (Select-String -Path $OUTPUT_LOG -Pattern '^SUCCESS:filters-consumer:trace trace-001$' -Quiet)) { + return $true + } + + Start-Sleep -Milliseconds 500 + $elapsed += 0.5 + } + + return $false +} + +try { + Start-ExampleDependencies + '' | Set-Content -Path $OUTPUT_LOG + + $consumerProcess = Start-Process pwsh -ArgumentList @('-NoProfile', '-Command', "`$env:SC_EXAMPLES_QUEUE_NAME='$queueName'; dotnet run --project '$consumerProject' 2>&1 | Out-File -FilePath '$OUTPUT_LOG' -Append") -PassThru -NoNewWindow + + if (-not (Wait-ForReady)) { + throw 'Filters consumer did not become ready within 30 seconds' + } + + $env:SC_EXAMPLES_QUEUE_NAME = $queueName + dotnet run --project $senderProject 2>&1 | Out-File -FilePath $OUTPUT_LOG -Append + Remove-Item Env:SC_EXAMPLES_QUEUE_NAME -ErrorAction SilentlyContinue + + if (-not (Wait-ForSuccess)) { + throw 'Filters run did not produce the expected consumer success line within 30 seconds' + } +} +finally { + if ($null -ne $consumerProcess -and -not $consumerProcess.HasExited) { + Stop-Process -Id $consumerProcess.Id -Force -ErrorAction SilentlyContinue + $consumerProcess.WaitForExit() + } +} diff --git a/examples/Filters/run.sh b/examples/Filters/run.sh new file mode 100755 index 000000000..b22e62b78 --- /dev/null +++ b/examples/Filters/run.sh @@ -0,0 +1,76 @@ +#!/usr/bin/env bash +set -euo pipefail + +SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)" +source "$SCRIPT_DIR/../scripts/common.sh" + +OUTPUT_LOG="$SCRIPT_DIR/output.log" +RUN_ID=$(date +%s%N) +QUEUE_NAME="filters-consumer-${RUN_ID}" +PIDS=() + +cleanup() { + for pid in "${PIDS[@]:-}"; do + kill "$pid" 2>/dev/null || true + done + + for pid in "${PIDS[@]:-}"; do + wait "$pid" 2>/dev/null || true + done +} + +trap cleanup EXIT + +wait_for_ready() { + local max_attempts=60 + local attempt=0 + + while [ $attempt -lt $max_attempts ]; do + if grep -q '^READY:filters-consumer$' "$OUTPUT_LOG" 2>/dev/null; then + return 0 + fi + + sleep 0.5 + attempt=$((attempt + 1)) + done + + return 1 +} + +wait_for_success() { + local max_attempts=60 + local attempt=0 + + while [ $attempt -lt $max_attempts ]; do + if grep -q '^SUCCESS:filters-consumer:trace trace-001$' "$OUTPUT_LOG" 2>/dev/null; then + return 0 + fi + + sleep 0.5 + attempt=$((attempt + 1)) + done + + return 1 +} + +start_dependencies +prebuild_solution "$SCRIPT_DIR/Filters.sln" +> "$OUTPUT_LOG" + +SC_EXAMPLES_QUEUE_NAME="$QUEUE_NAME" \ + dotnet run --no-build --project "$SCRIPT_DIR/src/ServiceConnect.Examples.Filters.Consumer/ServiceConnect.Examples.Filters.Consumer.csproj" >> "$OUTPUT_LOG" 2>&1 & +CONSUMER_PID=$! +PIDS+=("$CONSUMER_PID") + +if ! wait_for_ready; then + echo "ERROR: Filters consumer did not become ready within 30 seconds" + exit 1 +fi + +SC_EXAMPLES_QUEUE_NAME="$QUEUE_NAME" \ + dotnet run --no-build --project "$SCRIPT_DIR/src/ServiceConnect.Examples.Filters.Sender/ServiceConnect.Examples.Filters.Sender.csproj" >> "$OUTPUT_LOG" 2>&1 + +if ! wait_for_success; then + echo "ERROR: Filters run did not produce the expected consumer success line within 30 seconds" + exit 1 +fi diff --git a/examples/Filters/src/ServiceConnect.Examples.Filters.Consumer/FilteredNotificationHandler.cs b/examples/Filters/src/ServiceConnect.Examples.Filters.Consumer/FilteredNotificationHandler.cs new file mode 100644 index 000000000..ba2d659df --- /dev/null +++ b/examples/Filters/src/ServiceConnect.Examples.Filters.Consumer/FilteredNotificationHandler.cs @@ -0,0 +1,18 @@ +using ServiceConnect.Examples.Filters.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.Filters.Consumer; + +public sealed class FilteredNotificationHandler : IMessageHandler +{ + public Task HandleAsync(FilteredNotification message, IConsumeContext context, CancellationToken cancellationToken = default) + { + var traceId = context.Headers.TryGetValue("X-Trace-Id", out var rawTraceId) + ? HeaderDecoder.Decode(rawTraceId) ?? "missing" + : "missing"; + + ConsoleStatus.Success("filters-consumer", $"trace {traceId}"); + return Task.CompletedTask; + } +} diff --git a/examples/Filters/src/ServiceConnect.Examples.Filters.Consumer/Program.cs b/examples/Filters/src/ServiceConnect.Examples.Filters.Consumer/Program.cs new file mode 100644 index 000000000..01f093e36 --- /dev/null +++ b/examples/Filters/src/ServiceConnect.Examples.Filters.Consumer/Program.cs @@ -0,0 +1,33 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.Filters.Consumer; +using ServiceConnect.Examples.Filters.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Interfaces; + +var settings = ExampleSettingsLoader.Load(); +var queueName = Environment.GetEnvironmentVariable("SC_EXAMPLES_QUEUE_NAME") ?? "filters-consumer"; + +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +var handlerReferences = new List +{ + new() { HandlerType = typeof(FilteredNotificationHandler), MessageType = typeof(FilteredNotification) } +}; + +var services = new ServiceCollection(); +services.AddSingleton>(handlerReferences); +services.AddTransient, FilteredNotificationHandler>(); +services.AddExampleBus(settings, queueName); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); +await bus.StartConsumingAsync(); +ConsoleStatus.Ready("filters-consumer"); +await Console.Out.FlushAsync(); +await Task.Delay(Timeout.InfiniteTimeSpan); diff --git a/examples/Filters/src/ServiceConnect.Examples.Filters.Consumer/ServiceConnect.Examples.Filters.Consumer.csproj b/examples/Filters/src/ServiceConnect.Examples.Filters.Consumer/ServiceConnect.Examples.Filters.Consumer.csproj new file mode 100644 index 000000000..781350e56 --- /dev/null +++ b/examples/Filters/src/ServiceConnect.Examples.Filters.Consumer/ServiceConnect.Examples.Filters.Consumer.csproj @@ -0,0 +1,10 @@ + + + Exe + + + + + + + diff --git a/examples/Filters/src/ServiceConnect.Examples.Filters.Contracts/FilteredNotification.cs b/examples/Filters/src/ServiceConnect.Examples.Filters.Contracts/FilteredNotification.cs new file mode 100644 index 000000000..ee08fe42f --- /dev/null +++ b/examples/Filters/src/ServiceConnect.Examples.Filters.Contracts/FilteredNotification.cs @@ -0,0 +1,8 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.Filters.Contracts; + +public sealed class FilteredNotification(Guid correlationId) : Message(correlationId) +{ + public string MessageText { get; init; } = string.Empty; +} diff --git a/examples/Filters/src/ServiceConnect.Examples.Filters.Contracts/ServiceConnect.Examples.Filters.Contracts.csproj b/examples/Filters/src/ServiceConnect.Examples.Filters.Contracts/ServiceConnect.Examples.Filters.Contracts.csproj new file mode 100644 index 000000000..02cd0ca30 --- /dev/null +++ b/examples/Filters/src/ServiceConnect.Examples.Filters.Contracts/ServiceConnect.Examples.Filters.Contracts.csproj @@ -0,0 +1,5 @@ + + + + + diff --git a/examples/Filters/src/ServiceConnect.Examples.Filters.Sender/Program.cs b/examples/Filters/src/ServiceConnect.Examples.Filters.Sender/Program.cs new file mode 100644 index 000000000..3a54a9b5c --- /dev/null +++ b/examples/Filters/src/ServiceConnect.Examples.Filters.Sender/Program.cs @@ -0,0 +1,33 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.Filters.Contracts; +using ServiceConnect.Examples.Filters.Sender; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; + +var settings = ExampleSettingsLoader.Load(); +var queueName = Environment.GetEnvironmentVariable("SC_EXAMPLES_QUEUE_NAME") ?? "filters-consumer"; + +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +var services = new ServiceCollection(); +services.AddSingleton>([]); +services.AddSingleton(); +services.AddExampleBus(settings, "filters-sender", configureBuilder: builder => +{ + builder.AddOutgoingFilter(); +}); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); +await bus.SendAsync( + new FilteredNotification(Guid.NewGuid()) { MessageText = "filter applied" }, + new SendOptions { EndPoint = queueName }); +ConsoleStatus.Success("filters-sender", "sent filter applied"); +await Console.Out.FlushAsync(); diff --git a/examples/Filters/src/ServiceConnect.Examples.Filters.Sender/ServiceConnect.Examples.Filters.Sender.csproj b/examples/Filters/src/ServiceConnect.Examples.Filters.Sender/ServiceConnect.Examples.Filters.Sender.csproj new file mode 100644 index 000000000..781350e56 --- /dev/null +++ b/examples/Filters/src/ServiceConnect.Examples.Filters.Sender/ServiceConnect.Examples.Filters.Sender.csproj @@ -0,0 +1,10 @@ + + + Exe + + + + + + + diff --git a/examples/Filters/src/ServiceConnect.Examples.Filters.Sender/TraceHeaderFilter.cs b/examples/Filters/src/ServiceConnect.Examples.Filters.Sender/TraceHeaderFilter.cs new file mode 100644 index 000000000..bb3b666d7 --- /dev/null +++ b/examples/Filters/src/ServiceConnect.Examples.Filters.Sender/TraceHeaderFilter.cs @@ -0,0 +1,12 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.Filters.Sender; + +public sealed class TraceHeaderFilter : IFilter +{ + public Task ProcessAsync(Envelope envelope, CancellationToken cancellationToken = default) + { + envelope.Headers["X-Trace-Id"] = "trace-001"; + return Task.FromResult(FilterAction.Continue); + } +} diff --git a/examples/PointToPoint/PointToPoint.sln b/examples/PointToPoint/PointToPoint.sln new file mode 100644 index 000000000..2903e8e25 --- /dev/null +++ b/examples/PointToPoint/PointToPoint.sln @@ -0,0 +1,69 @@ + +Microsoft Visual Studio Solution File, Format Version 12.00 +# Visual Studio Version 17 +VisualStudioVersion = 17.0.31903.59 +MinimumVisualStudioVersion = 10.0.40219.1 +Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{827E0CD3-B72D-47B6-A68D-7590B98EB39B}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect.Examples.PointToPoint.Contracts", "src\ServiceConnect.Examples.PointToPoint.Contracts\ServiceConnect.Examples.PointToPoint.Contracts.csproj", "{7CC47926-2290-422D-8AA3-4A97CCF9B135}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect.Examples.PointToPoint.Consumer", "src\ServiceConnect.Examples.PointToPoint.Consumer\ServiceConnect.Examples.PointToPoint.Consumer.csproj", "{CB4F2801-4C05-4447-868B-D2BC3DA0EAEF}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = 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{7CC47926-2290-422D-8AA3-4A97CCF9B135}.Release|Any CPU.ActiveCfg = Release|Any CPU + {7CC47926-2290-422D-8AA3-4A97CCF9B135}.Release|Any CPU.Build.0 = Release|Any CPU + {7CC47926-2290-422D-8AA3-4A97CCF9B135}.Release|x64.ActiveCfg = Release|Any CPU + {7CC47926-2290-422D-8AA3-4A97CCF9B135}.Release|x64.Build.0 = Release|Any CPU + {7CC47926-2290-422D-8AA3-4A97CCF9B135}.Release|x86.ActiveCfg = Release|Any CPU + {7CC47926-2290-422D-8AA3-4A97CCF9B135}.Release|x86.Build.0 = Release|Any CPU + {CB4F2801-4C05-4447-868B-D2BC3DA0EAEF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU + {CB4F2801-4C05-4447-868B-D2BC3DA0EAEF}.Debug|Any CPU.Build.0 = Debug|Any CPU + {CB4F2801-4C05-4447-868B-D2BC3DA0EAEF}.Debug|x64.ActiveCfg = Debug|Any CPU + {CB4F2801-4C05-4447-868B-D2BC3DA0EAEF}.Debug|x64.Build.0 = Debug|Any CPU + {CB4F2801-4C05-4447-868B-D2BC3DA0EAEF}.Debug|x86.ActiveCfg = Debug|Any CPU + {CB4F2801-4C05-4447-868B-D2BC3DA0EAEF}.Debug|x86.Build.0 = Debug|Any CPU + 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b/examples/PointToPoint/PointToPoint.slnx new file mode 100644 index 000000000..ba788ff0d --- /dev/null +++ b/examples/PointToPoint/PointToPoint.slnx @@ -0,0 +1,2 @@ + + diff --git a/examples/PointToPoint/README.md b/examples/PointToPoint/README.md new file mode 100644 index 000000000..d0ef400f9 --- /dev/null +++ b/examples/PointToPoint/README.md @@ -0,0 +1,47 @@ +# PointToPoint + +## Overview + +Send one command from one sender to one consumer queue. + +## Participants + +- `ServiceConnect.Examples.PointToPoint.Sender` +- `ServiceConnect.Examples.PointToPoint.Consumer` + +## Message Flow + +```mermaid +sequenceDiagram + participant Sender + participant Consumer + Sender->>Consumer: WorkSubmitted(work-001) +``` + +## Prerequisites + +`docker compose -f ../docker-compose.yml up -d` + +## Run This Example + +`bash run.sh` + +## Run Manually + +Run the consumer first, then the sender. + +`dotnet run --project src/ServiceConnect.Examples.PointToPoint.Consumer/ServiceConnect.Examples.PointToPoint.Consumer.csproj` + +`dotnet run --project src/ServiceConnect.Examples.PointToPoint.Sender/ServiceConnect.Examples.PointToPoint.Sender.csproj` + +## Expected Output + +`READY:point-to-point-consumer` + +`SUCCESS:point-to-point-sender:sent work-001` + +`SUCCESS:point-to-point-consumer:processed work-001` + +## What To Notice + +The sender targets a single endpoint, so exactly one queue receives the message. diff --git a/examples/PointToPoint/run.ps1 b/examples/PointToPoint/run.ps1 new file mode 100644 index 000000000..51fd500d2 --- /dev/null +++ b/examples/PointToPoint/run.ps1 @@ -0,0 +1,27 @@ +$ErrorActionPreference = 'Stop' +$PSNativeCommandUseErrorActionPreference = $true + +. "$PSScriptRoot/../scripts/common.ps1" + +$consumerProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.PointToPoint.Consumer/ServiceConnect.Examples.PointToPoint.Consumer.csproj' +$senderProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.PointToPoint.Sender/ServiceConnect.Examples.PointToPoint.Sender.csproj' +$consumerProcess = $null + +try { + Start-ExampleDependencies + try { + docker compose -f "$PSScriptRoot/../docker-compose.yml" exec -T rabbitmq rabbitmqctl purge_queue point-to-point-consumer | Out-Null + } + catch { + } + $consumerProcess = Start-Process dotnet -ArgumentList @('run', '--project', $consumerProject) -PassThru -NoNewWindow + Start-Sleep -Seconds 5 + dotnet run --project $senderProject + Start-Sleep -Seconds 5 +} +finally { + if ($null -ne $consumerProcess -and -not $consumerProcess.HasExited) { + Stop-Process -Id $consumerProcess.Id -Force + $consumerProcess.WaitForExit() + } +} diff --git a/examples/PointToPoint/run.sh b/examples/PointToPoint/run.sh new file mode 100755 index 000000000..eee5b72c9 --- /dev/null +++ b/examples/PointToPoint/run.sh @@ -0,0 +1,32 @@ +#!/usr/bin/env bash +set -euo pipefail + +SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)" +source "$SCRIPT_DIR/../scripts/common.sh" + +PIDS=() + +cleanup() { + for pid in "${PIDS[@]:-}"; do + kill "$pid" || true + done + + for pid in "${PIDS[@]:-}"; do + wait "$pid" || true + done +} + +trap cleanup EXIT + +start_passive() { + dotnet run --no-build --project "$1" & + PIDS+=("$!") +} + +start_dependencies +docker compose -f "$SCRIPT_DIR/../docker-compose.yml" exec -T rabbitmq rabbitmqctl purge_queue point-to-point-consumer || true +prebuild_solution "$SCRIPT_DIR/PointToPoint.sln" +start_passive "$SCRIPT_DIR/src/ServiceConnect.Examples.PointToPoint.Consumer/ServiceConnect.Examples.PointToPoint.Consumer.csproj" +sleep 5 +dotnet run --no-build --project "$SCRIPT_DIR/src/ServiceConnect.Examples.PointToPoint.Sender/ServiceConnect.Examples.PointToPoint.Sender.csproj" +sleep 5 diff --git a/examples/PointToPoint/src/ServiceConnect.Examples.PointToPoint.Consumer/Program.cs b/examples/PointToPoint/src/ServiceConnect.Examples.PointToPoint.Consumer/Program.cs new file mode 100644 index 000000000..f9388e6f6 --- /dev/null +++ b/examples/PointToPoint/src/ServiceConnect.Examples.PointToPoint.Consumer/Program.cs @@ -0,0 +1,30 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.PointToPoint.Consumer; +using ServiceConnect.Examples.PointToPoint.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Interfaces; + +var settings = ExampleSettingsLoader.Load(); +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +var handlerReferences = new List +{ + new() { HandlerType = typeof(WorkSubmittedHandler), MessageType = typeof(WorkSubmitted) } +}; + +var services = new ServiceCollection(); +services.AddSingleton>(handlerReferences); +services.AddTransient, WorkSubmittedHandler>(); +services.AddExampleBus(settings, "point-to-point-consumer"); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); +await bus.StartConsumingAsync(); +ConsoleStatus.Ready("point-to-point-consumer"); +await Task.Delay(Timeout.InfiniteTimeSpan); diff --git a/examples/PointToPoint/src/ServiceConnect.Examples.PointToPoint.Consumer/ServiceConnect.Examples.PointToPoint.Consumer.csproj b/examples/PointToPoint/src/ServiceConnect.Examples.PointToPoint.Consumer/ServiceConnect.Examples.PointToPoint.Consumer.csproj new file mode 100644 index 000000000..7f8ec7004 --- /dev/null +++ b/examples/PointToPoint/src/ServiceConnect.Examples.PointToPoint.Consumer/ServiceConnect.Examples.PointToPoint.Consumer.csproj @@ -0,0 +1,10 @@ + + + Exe + + + + + + + diff --git a/examples/PointToPoint/src/ServiceConnect.Examples.PointToPoint.Consumer/WorkSubmittedHandler.cs b/examples/PointToPoint/src/ServiceConnect.Examples.PointToPoint.Consumer/WorkSubmittedHandler.cs new file mode 100644 index 000000000..2f5fff86e --- /dev/null +++ b/examples/PointToPoint/src/ServiceConnect.Examples.PointToPoint.Consumer/WorkSubmittedHandler.cs @@ -0,0 +1,14 @@ +using ServiceConnect.Examples.PointToPoint.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.PointToPoint.Consumer; + +public sealed class WorkSubmittedHandler : IMessageHandler +{ + public Task HandleAsync(WorkSubmitted message, IConsumeContext context, CancellationToken cancellationToken = default) + { + ConsoleStatus.Success("point-to-point-consumer", $"processed {message.WorkId}"); + return Task.CompletedTask; + } +} diff --git a/examples/PointToPoint/src/ServiceConnect.Examples.PointToPoint.Contracts/ServiceConnect.Examples.PointToPoint.Contracts.csproj b/examples/PointToPoint/src/ServiceConnect.Examples.PointToPoint.Contracts/ServiceConnect.Examples.PointToPoint.Contracts.csproj new file mode 100644 index 000000000..02cd0ca30 --- /dev/null +++ b/examples/PointToPoint/src/ServiceConnect.Examples.PointToPoint.Contracts/ServiceConnect.Examples.PointToPoint.Contracts.csproj @@ -0,0 +1,5 @@ + + + + + diff --git a/examples/PointToPoint/src/ServiceConnect.Examples.PointToPoint.Contracts/WorkSubmitted.cs b/examples/PointToPoint/src/ServiceConnect.Examples.PointToPoint.Contracts/WorkSubmitted.cs new file mode 100644 index 000000000..b05dee6de --- /dev/null +++ b/examples/PointToPoint/src/ServiceConnect.Examples.PointToPoint.Contracts/WorkSubmitted.cs @@ -0,0 +1,8 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.PointToPoint.Contracts; + +public sealed class WorkSubmitted(Guid correlationId) : Message(correlationId) +{ + public string WorkId { get; init; } = string.Empty; +} diff --git a/examples/PointToPoint/src/ServiceConnect.Examples.PointToPoint.Sender/Program.cs b/examples/PointToPoint/src/ServiceConnect.Examples.PointToPoint.Sender/Program.cs new file mode 100644 index 000000000..c7e7417ed --- /dev/null +++ b/examples/PointToPoint/src/ServiceConnect.Examples.PointToPoint.Sender/Program.cs @@ -0,0 +1,25 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.PointToPoint.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; + +var settings = ExampleSettingsLoader.Load(); +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +var services = new ServiceCollection(); +services.AddSingleton>([]); +services.AddExampleBus(settings, "point-to-point-sender"); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); +await bus.SendAsync( + new WorkSubmitted(Guid.NewGuid()) { WorkId = "work-001" }, + new SendOptions { EndPoint = "point-to-point-consumer" }); +ConsoleStatus.Success("point-to-point-sender", "sent work-001"); diff --git a/examples/PointToPoint/src/ServiceConnect.Examples.PointToPoint.Sender/ServiceConnect.Examples.PointToPoint.Sender.csproj b/examples/PointToPoint/src/ServiceConnect.Examples.PointToPoint.Sender/ServiceConnect.Examples.PointToPoint.Sender.csproj new file mode 100644 index 000000000..7f8ec7004 --- /dev/null +++ b/examples/PointToPoint/src/ServiceConnect.Examples.PointToPoint.Sender/ServiceConnect.Examples.PointToPoint.Sender.csproj @@ -0,0 +1,10 @@ + + + Exe + + + + + + + diff --git a/examples/PolymorphicMessages/PolymorphicMessages.sln b/examples/PolymorphicMessages/PolymorphicMessages.sln new file mode 100644 index 000000000..792de760d --- /dev/null +++ b/examples/PolymorphicMessages/PolymorphicMessages.sln @@ -0,0 +1,84 @@ + +Microsoft Visual Studio Solution File, Format Version 12.00 +# Visual Studio Version 17 +VisualStudioVersion = 17.0.31903.59 +MinimumVisualStudioVersion = 10.0.40219.1 +Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{827E0CD3-B72D-47B6-A68D-7590B98EB39B}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect.Examples.PolymorphicMessages.Contracts", "src\ServiceConnect.Examples.PolymorphicMessages.Contracts\ServiceConnect.Examples.PolymorphicMessages.Contracts.csproj", "{59EA8B5C-7B66-4086-A9DA-891F83D5CEE2}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect.Examples.PolymorphicMessages.Publisher", "src\ServiceConnect.Examples.PolymorphicMessages.Publisher\ServiceConnect.Examples.PolymorphicMessages.Publisher.csproj", "{E86188F3-49BE-49E2-AA5E-792245D19BE6}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect.Examples.PolymorphicMessages.AuditSubscriber", "src\ServiceConnect.Examples.PolymorphicMessages.AuditSubscriber\ServiceConnect.Examples.PolymorphicMessages.AuditSubscriber.csproj", "{A91007EE-B010-4962-B1AC-D06B5CAF2642}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect.Examples.PolymorphicMessages.ShippingSubscriber", "src\ServiceConnect.Examples.PolymorphicMessages.ShippingSubscriber\ServiceConnect.Examples.PolymorphicMessages.ShippingSubscriber.csproj", "{7C71DBE5-00C2-43CA-9368-93530DB788DD}" +EndProject +Global + GlobalSection(SolutionConfigurationPlatforms) = preSolution + Debug|Any CPU = Debug|Any CPU + Debug|x64 = Debug|x64 + Debug|x86 = Debug|x86 + Release|Any CPU = Release|Any CPU + Release|x64 = Release|x64 + Release|x86 = Release|x86 + EndGlobalSection + GlobalSection(ProjectConfigurationPlatforms) = postSolution + {59EA8B5C-7B66-4086-A9DA-891F83D5CEE2}.Debug|Any CPU.ActiveCfg = Debug|Any CPU + {59EA8B5C-7B66-4086-A9DA-891F83D5CEE2}.Debug|Any CPU.Build.0 = Debug|Any CPU + {59EA8B5C-7B66-4086-A9DA-891F83D5CEE2}.Debug|x64.ActiveCfg = Debug|Any CPU + {59EA8B5C-7B66-4086-A9DA-891F83D5CEE2}.Debug|x64.Build.0 = Debug|Any CPU + {59EA8B5C-7B66-4086-A9DA-891F83D5CEE2}.Debug|x86.ActiveCfg = Debug|Any CPU + {59EA8B5C-7B66-4086-A9DA-891F83D5CEE2}.Debug|x86.Build.0 = Debug|Any CPU + {59EA8B5C-7B66-4086-A9DA-891F83D5CEE2}.Release|Any CPU.ActiveCfg = Release|Any CPU + {59EA8B5C-7B66-4086-A9DA-891F83D5CEE2}.Release|Any CPU.Build.0 = Release|Any CPU + {59EA8B5C-7B66-4086-A9DA-891F83D5CEE2}.Release|x64.ActiveCfg = Release|Any CPU + {59EA8B5C-7B66-4086-A9DA-891F83D5CEE2}.Release|x64.Build.0 = Release|Any CPU + {59EA8B5C-7B66-4086-A9DA-891F83D5CEE2}.Release|x86.ActiveCfg = Release|Any CPU + {59EA8B5C-7B66-4086-A9DA-891F83D5CEE2}.Release|x86.Build.0 = Release|Any CPU + {E86188F3-49BE-49E2-AA5E-792245D19BE6}.Debug|Any CPU.ActiveCfg = Debug|Any CPU + {E86188F3-49BE-49E2-AA5E-792245D19BE6}.Debug|Any CPU.Build.0 = Debug|Any CPU + {E86188F3-49BE-49E2-AA5E-792245D19BE6}.Debug|x64.ActiveCfg = Debug|Any CPU + {E86188F3-49BE-49E2-AA5E-792245D19BE6}.Debug|x64.Build.0 = Debug|Any CPU + {E86188F3-49BE-49E2-AA5E-792245D19BE6}.Debug|x86.ActiveCfg = Debug|Any CPU + {E86188F3-49BE-49E2-AA5E-792245D19BE6}.Debug|x86.Build.0 = Debug|Any CPU + {E86188F3-49BE-49E2-AA5E-792245D19BE6}.Release|Any CPU.ActiveCfg = Release|Any CPU + {E86188F3-49BE-49E2-AA5E-792245D19BE6}.Release|Any CPU.Build.0 = Release|Any CPU + {E86188F3-49BE-49E2-AA5E-792245D19BE6}.Release|x64.ActiveCfg = Release|Any CPU + {E86188F3-49BE-49E2-AA5E-792245D19BE6}.Release|x64.Build.0 = Release|Any CPU + {E86188F3-49BE-49E2-AA5E-792245D19BE6}.Release|x86.ActiveCfg = Release|Any CPU + {E86188F3-49BE-49E2-AA5E-792245D19BE6}.Release|x86.Build.0 = Release|Any CPU + {A91007EE-B010-4962-B1AC-D06B5CAF2642}.Debug|Any CPU.ActiveCfg = Debug|Any CPU + {A91007EE-B010-4962-B1AC-D06B5CAF2642}.Debug|Any CPU.Build.0 = Debug|Any CPU + {A91007EE-B010-4962-B1AC-D06B5CAF2642}.Debug|x64.ActiveCfg = Debug|Any CPU + {A91007EE-B010-4962-B1AC-D06B5CAF2642}.Debug|x64.Build.0 = Debug|Any CPU + {A91007EE-B010-4962-B1AC-D06B5CAF2642}.Debug|x86.ActiveCfg = Debug|Any CPU + {A91007EE-B010-4962-B1AC-D06B5CAF2642}.Debug|x86.Build.0 = Debug|Any CPU + {A91007EE-B010-4962-B1AC-D06B5CAF2642}.Release|Any CPU.ActiveCfg = Release|Any CPU + {A91007EE-B010-4962-B1AC-D06B5CAF2642}.Release|Any CPU.Build.0 = Release|Any CPU + {A91007EE-B010-4962-B1AC-D06B5CAF2642}.Release|x64.ActiveCfg = Release|Any CPU + {A91007EE-B010-4962-B1AC-D06B5CAF2642}.Release|x64.Build.0 = Release|Any CPU + {A91007EE-B010-4962-B1AC-D06B5CAF2642}.Release|x86.ActiveCfg = Release|Any CPU + {A91007EE-B010-4962-B1AC-D06B5CAF2642}.Release|x86.Build.0 = Release|Any CPU + {7C71DBE5-00C2-43CA-9368-93530DB788DD}.Debug|Any CPU.ActiveCfg = Debug|Any CPU + {7C71DBE5-00C2-43CA-9368-93530DB788DD}.Debug|Any CPU.Build.0 = Debug|Any CPU + {7C71DBE5-00C2-43CA-9368-93530DB788DD}.Debug|x64.ActiveCfg = Debug|Any CPU + {7C71DBE5-00C2-43CA-9368-93530DB788DD}.Debug|x64.Build.0 = Debug|Any CPU + {7C71DBE5-00C2-43CA-9368-93530DB788DD}.Debug|x86.ActiveCfg = Debug|Any CPU + {7C71DBE5-00C2-43CA-9368-93530DB788DD}.Debug|x86.Build.0 = Debug|Any CPU + {7C71DBE5-00C2-43CA-9368-93530DB788DD}.Release|Any CPU.ActiveCfg = Release|Any CPU + {7C71DBE5-00C2-43CA-9368-93530DB788DD}.Release|Any CPU.Build.0 = Release|Any CPU + {7C71DBE5-00C2-43CA-9368-93530DB788DD}.Release|x64.ActiveCfg = Release|Any CPU + {7C71DBE5-00C2-43CA-9368-93530DB788DD}.Release|x64.Build.0 = Release|Any CPU + {7C71DBE5-00C2-43CA-9368-93530DB788DD}.Release|x86.ActiveCfg = Release|Any CPU + {7C71DBE5-00C2-43CA-9368-93530DB788DD}.Release|x86.Build.0 = Release|Any CPU + EndGlobalSection + GlobalSection(SolutionProperties) = preSolution + HideSolutionNode = FALSE + EndGlobalSection + GlobalSection(NestedProjects) = preSolution + {59EA8B5C-7B66-4086-A9DA-891F83D5CEE2} = {827E0CD3-B72D-47B6-A68D-7590B98EB39B} + {E86188F3-49BE-49E2-AA5E-792245D19BE6} = {827E0CD3-B72D-47B6-A68D-7590B98EB39B} + {A91007EE-B010-4962-B1AC-D06B5CAF2642} = {827E0CD3-B72D-47B6-A68D-7590B98EB39B} + {7C71DBE5-00C2-43CA-9368-93530DB788DD} = {827E0CD3-B72D-47B6-A68D-7590B98EB39B} + EndGlobalSection +EndGlobal diff --git a/examples/PolymorphicMessages/README.md b/examples/PolymorphicMessages/README.md new file mode 100644 index 000000000..379b5caa2 --- /dev/null +++ b/examples/PolymorphicMessages/README.md @@ -0,0 +1,66 @@ +# PolymorphicMessages + +## Overview + +Publish derived events; let a base-type handler catch the whole category. One publisher emits `OrderPlaced` and `OrderShipped` (both derived from `DomainEvent`). The audit subscriber handles `DomainEvent` and catches **both**; the shipping subscriber handles `OrderShipped` and catches only that one. Same publish, two handlers, different specificities. + +## Participants + +- `ServiceConnect.Examples.PolymorphicMessages.Publisher` +- `ServiceConnect.Examples.PolymorphicMessages.AuditSubscriber` +- `ServiceConnect.Examples.PolymorphicMessages.ShippingSubscriber` + +## Message Flow + +```mermaid +sequenceDiagram + participant Publisher + participant AuditSubscriber + participant ShippingSubscriber + Publisher->>AuditSubscriber: OrderPlaced(order-42) + Publisher->>AuditSubscriber: OrderShipped(order-42) + Publisher->>ShippingSubscriber: OrderShipped(order-42) +``` + +## Prerequisites + +`docker compose -f ../docker-compose.yml up -d` + +## Run This Example + +`bash run.sh` + +## Run Manually + +Run both subscribers first, then the publisher. + +`dotnet run --project src/ServiceConnect.Examples.PolymorphicMessages.AuditSubscriber/ServiceConnect.Examples.PolymorphicMessages.AuditSubscriber.csproj` + +`dotnet run --project src/ServiceConnect.Examples.PolymorphicMessages.ShippingSubscriber/ServiceConnect.Examples.PolymorphicMessages.ShippingSubscriber.csproj` + +`dotnet run --project src/ServiceConnect.Examples.PolymorphicMessages.Publisher/ServiceConnect.Examples.PolymorphicMessages.Publisher.csproj` + +## Expected Output + +``` +READY:audit-subscriber +READY:shipping-subscriber +SUCCESS:polymorphic-messages-publisher:published order-placed order-42 +SUCCESS:audit-subscriber:audited OrderPlaced order-42 +SUCCESS:polymorphic-messages-publisher:published order-shipped order-42 +SUCCESS:audit-subscriber:audited OrderShipped order-42 +SUCCESS:shipping-subscriber:processed order-shipped order-42 +``` + +Note: Lines from the two subscriber processes may interleave with each other and with the publisher's `SUCCESS:` lines, since all three run concurrently. The exact order may vary between runs. + +## What To Notice + +The audit subscriber registers `DomainEventHandler` (one handler class) but lists **three** `HandlerReference` entries — one for `DomainEvent`, one for `OrderPlaced`, one for `OrderShipped`. That is the idiom that makes polymorphic subscription work: + +- **Dispatch walks the type hierarchy.** At runtime, a published `OrderPlaced` resolves to every handler whose registered type is an ancestor in the concrete type's inheritance chain — so `DomainEventHandler` receives both `OrderPlaced` and `OrderShipped` without any `switch` statement of its own. +- **Subscription does not walk the hierarchy.** Each `HandlerReference` creates a RabbitMQ binding for exactly that message type's exchange. Without the `OrderPlaced` and `OrderShipped` entries, the audit queue would only be bound to the `DomainEvent` exchange — and the concrete events published by the publisher would never arrive. + +The shipping subscriber is a plain single-type subscriber for contrast: one `HandlerReference` for `OrderShipped`, one handler class, catches only that specific event. + +See the [Polymorphic Messages pattern page](https://r-suite.github.io/ServiceConnect-CSharp/learn/messaging-patterns/polymorphic-messages/) for the full write-up. diff --git a/examples/PolymorphicMessages/run.ps1 b/examples/PolymorphicMessages/run.ps1 new file mode 100644 index 000000000..a3cbbcd23 --- /dev/null +++ b/examples/PolymorphicMessages/run.ps1 @@ -0,0 +1,88 @@ +$ErrorActionPreference = 'Stop' +$PSNativeCommandUseErrorActionPreference = $true + +. "$PSScriptRoot/../scripts/common.ps1" + +$auditSubscriberProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.PolymorphicMessages.AuditSubscriber/ServiceConnect.Examples.PolymorphicMessages.AuditSubscriber.csproj' +$shippingSubscriberProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.PolymorphicMessages.ShippingSubscriber/ServiceConnect.Examples.PolymorphicMessages.ShippingSubscriber.csproj' +$publisherProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.PolymorphicMessages.Publisher/ServiceConnect.Examples.PolymorphicMessages.Publisher.csproj' +$auditProcess = $null +$shippingProcess = $null +$publisherJob = $null + +function Wait-ForSubscribersReady { + $timeout = 30 + $elapsed = 0 + $auditReady = $false + $shippingReady = $false + + while ($elapsed -lt $timeout) { + if ((Test-Path $OUTPUT_LOG) -and (Select-String -Path $OUTPUT_LOG -Pattern "READY:audit-subscriber" -Quiet) -and -not $auditReady) { + $auditReady = $true + } + if ((Test-Path $OUTPUT_LOG) -and (Select-String -Path $OUTPUT_LOG -Pattern "READY:shipping-subscriber" -Quiet) -and -not $shippingReady) { + $shippingReady = $true + } + + if ($auditReady -and $shippingReady) { + return $true + } + + Start-Sleep -Milliseconds 500 + $elapsed += 0.5 + } + + return $false +} + +function Wait-ForSubscriberSuccess { + $timeout = 30 + $elapsed = 0 + + while ($elapsed -lt $timeout) { + if ((Test-Path $OUTPUT_LOG) -and + (Select-String -Path $OUTPUT_LOG -Pattern 'SUCCESS:audit-subscriber:audited OrderPlaced order-42' -Quiet) -and + (Select-String -Path $OUTPUT_LOG -Pattern 'SUCCESS:audit-subscriber:audited OrderShipped order-42' -Quiet) -and + (Select-String -Path $OUTPUT_LOG -Pattern 'SUCCESS:shipping-subscriber:processed order-shipped order-42' -Quiet)) { + return $true + } + + Start-Sleep -Milliseconds 500 + $elapsed += 0.5 + } + + return $false +} + +$OUTPUT_LOG = Join-Path $PSScriptRoot "output.log" + +try { + Start-ExampleDependencies + "" | Set-Content -Path $OUTPUT_LOG + $auditProcess = Start-Process dotnet -ArgumentList @('run', '--project', $auditSubscriberProject) -PassThru -NoNewWindow -RedirectStandardOutput $OUTPUT_LOG -RedirectStandardError $OUTPUT_LOG + $shippingProcess = Start-Process dotnet -ArgumentList @('run', '--project', $shippingSubscriberProject) -PassThru -NoNewWindow -RedirectStandardOutput $OUTPUT_LOG -RedirectStandardError $OUTPUT_LOG -Append + + if (-not (Wait-ForSubscribersReady)) { + throw "Subscribers did not become ready within 30 seconds" + } + + $publisherJob = Start-Job -ScriptBlock { + dotnet run --project $using:publisherProject 2>&1 | Out-File -FilePath $using:OUTPUT_LOG -Append + } + + $publisherJob | Wait-Job | Remove-Job -Force + + if (-not (Wait-ForSubscriberSuccess)) { + throw 'Subscribers did not observe all three expected SUCCESS lines within 30 seconds' + } +} +finally { + if ($null -ne $auditProcess -and -not $auditProcess.HasExited) { + Stop-Process -Id $auditProcess.Id -Force -ErrorAction SilentlyContinue + $auditProcess.WaitForExit() + } + if ($null -ne $shippingProcess -and -not $shippingProcess.HasExited) { + Stop-Process -Id $shippingProcess.Id -Force -ErrorAction SilentlyContinue + $shippingProcess.WaitForExit() + } +} diff --git a/examples/PolymorphicMessages/run.sh b/examples/PolymorphicMessages/run.sh new file mode 100755 index 000000000..655733867 --- /dev/null +++ b/examples/PolymorphicMessages/run.sh @@ -0,0 +1,75 @@ +#!/usr/bin/env bash +set -euo pipefail + +SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)" +source "$SCRIPT_DIR/../scripts/common.sh" + +OUTPUT_LOG="$SCRIPT_DIR/output.log" +PIDS=() + +wait_for_ready() { + local timeout=30 + + for i in $(seq 1 $((timeout * 2))); do + if grep -q "READY:audit-subscriber" "$OUTPUT_LOG" && grep -q "READY:shipping-subscriber" "$OUTPUT_LOG"; then + return 0 + fi + sleep 0.5 + done + + return 1 +} + +wait_for_success() { + local timeout=30 + + for i in $(seq 1 $((timeout * 2))); do + if grep -q "SUCCESS:audit-subscriber:audited OrderPlaced order-42" "$OUTPUT_LOG" && + grep -q "SUCCESS:audit-subscriber:audited OrderShipped order-42" "$OUTPUT_LOG" && + grep -q "SUCCESS:shipping-subscriber:processed order-shipped order-42" "$OUTPUT_LOG"; then + return 0 + fi + sleep 0.5 + done + + return 1 +} + +start_passive() { + dotnet run --no-build --project "$1" >> "$OUTPUT_LOG" 2>&1 & + PIDS+=("$!") +} + +start_dependencies +prebuild_solution "$SCRIPT_DIR/PolymorphicMessages.sln" +> "$OUTPUT_LOG" +start_passive "$SCRIPT_DIR/src/ServiceConnect.Examples.PolymorphicMessages.AuditSubscriber/ServiceConnect.Examples.PolymorphicMessages.AuditSubscriber.csproj" +start_passive "$SCRIPT_DIR/src/ServiceConnect.Examples.PolymorphicMessages.ShippingSubscriber/ServiceConnect.Examples.PolymorphicMessages.ShippingSubscriber.csproj" + +if ! wait_for_ready; then + echo "ERROR: Subscribers did not become ready within 30 seconds" + for pid in "${PIDS[@]}"; do + kill "$pid" 2>/dev/null || true + done + exit 1 +fi + +dotnet run --no-build --project "$SCRIPT_DIR/src/ServiceConnect.Examples.PolymorphicMessages.Publisher/ServiceConnect.Examples.PolymorphicMessages.Publisher.csproj" & +PUBLISHER_PID=$! +PIDS+=("$PUBLISHER_PID") +wait "$PUBLISHER_PID" + +if ! wait_for_success; then + echo "ERROR: Subscribers did not observe all three expected SUCCESS lines within 30 seconds" + for pid in "${PIDS[@]}"; do + kill "$pid" 2>/dev/null || true + done + exit 1 +fi + +for pid in "${PIDS[@]}"; do + kill "$pid" 2>/dev/null || true +done +for pid in "${PIDS[@]}"; do + wait "$pid" 2>/dev/null || true +done diff --git a/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.AuditSubscriber/DomainEventHandler.cs b/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.AuditSubscriber/DomainEventHandler.cs new file mode 100644 index 000000000..3872eddd7 --- /dev/null +++ b/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.AuditSubscriber/DomainEventHandler.cs @@ -0,0 +1,27 @@ +using ServiceConnect.Examples.PolymorphicMessages.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.PolymorphicMessages.AuditSubscriber; + +// IMessageHandler: ServiceConnect's dispatcher walks the runtime type +// hierarchy when resolving handlers, so this one handler receives OrderPlaced, +// OrderShipped, and any future DomainEvent subtype. The matching HandlerReference +// entries in Program.cs are what make the audit queue actually bound to each +// derived type's exchange — subscription setup does not walk the hierarchy. +public sealed class DomainEventHandler : IMessageHandler +{ + public Task HandleAsync(DomainEvent message, IConsumeContext context, CancellationToken cancellationToken = default) + { + var concreteTypeName = message.GetType().Name; + var orderId = message switch + { + OrderPlaced placed => placed.OrderId, + OrderShipped shipped => shipped.OrderId, + _ => throw new InvalidOperationException( + $"Unhandled DomainEvent subtype: {message.GetType().Name}"), + }; + ConsoleStatus.Success("audit-subscriber", $"audited {concreteTypeName} {orderId}"); + return Task.CompletedTask; + } +} diff --git a/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.AuditSubscriber/Program.cs b/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.AuditSubscriber/Program.cs new file mode 100644 index 000000000..b0b529c16 --- /dev/null +++ b/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.AuditSubscriber/Program.cs @@ -0,0 +1,38 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.PolymorphicMessages.AuditSubscriber; +using ServiceConnect.Examples.PolymorphicMessages.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Interfaces; + +var settings = ExampleSettingsLoader.Load(); +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +// One handler class, registered against each CONCRETE event it audits. Each entry binds the +// audit queue to that concrete exchange; the dispatcher's type-hierarchy walk routes the +// delivery to DomainEventHandler (registered for the base type below). The base type is NOT +// listed: the publisher fans every derived publish out to its own exchange AND every ancestor +// exchange, so also binding the DomainEvent exchange would deliver each event twice — and that +// base copy can't be deserialised, since DomainEvent is abstract. +var handlerReferences = new List +{ + new() { HandlerType = typeof(DomainEventHandler), MessageType = typeof(OrderPlaced) }, + new() { HandlerType = typeof(DomainEventHandler), MessageType = typeof(OrderShipped) }, +}; + +var services = new ServiceCollection(); +services.AddSingleton>(handlerReferences); +services.AddTransient, DomainEventHandler>(); +services.AddExampleBus(settings, "audit-subscriber"); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); +await bus.StartConsumingAsync(); +ConsoleStatus.Ready("audit-subscriber"); +await Console.Out.FlushAsync(); +await Task.Delay(Timeout.InfiniteTimeSpan); diff --git a/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.AuditSubscriber/ServiceConnect.Examples.PolymorphicMessages.AuditSubscriber.csproj b/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.AuditSubscriber/ServiceConnect.Examples.PolymorphicMessages.AuditSubscriber.csproj new file mode 100644 index 000000000..17264cdb8 --- /dev/null +++ b/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.AuditSubscriber/ServiceConnect.Examples.PolymorphicMessages.AuditSubscriber.csproj @@ -0,0 +1,10 @@ + + + Exe + + + + + + + diff --git a/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.Contracts/DomainEvent.cs b/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.Contracts/DomainEvent.cs new file mode 100644 index 000000000..b6342659f --- /dev/null +++ b/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.Contracts/DomainEvent.cs @@ -0,0 +1,8 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.PolymorphicMessages.Contracts; + +public abstract class DomainEvent(Guid correlationId) : Message(correlationId) +{ + public DateTime OccurredAt { get; init; } = DateTime.UtcNow; +} diff --git a/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.Contracts/OrderPlaced.cs b/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.Contracts/OrderPlaced.cs new file mode 100644 index 000000000..dd39debff --- /dev/null +++ b/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.Contracts/OrderPlaced.cs @@ -0,0 +1,7 @@ +namespace ServiceConnect.Examples.PolymorphicMessages.Contracts; + +public sealed class OrderPlaced(Guid correlationId) : DomainEvent(correlationId) +{ + public string OrderId { get; init; } = string.Empty; + public decimal Total { get; init; } +} diff --git a/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.Contracts/OrderShipped.cs b/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.Contracts/OrderShipped.cs new file mode 100644 index 000000000..aa39d081d --- /dev/null +++ b/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.Contracts/OrderShipped.cs @@ -0,0 +1,7 @@ +namespace ServiceConnect.Examples.PolymorphicMessages.Contracts; + +public sealed class OrderShipped(Guid correlationId) : DomainEvent(correlationId) +{ + public string OrderId { get; init; } = string.Empty; + public string Carrier { get; init; } = string.Empty; +} diff --git a/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.Contracts/ServiceConnect.Examples.PolymorphicMessages.Contracts.csproj b/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.Contracts/ServiceConnect.Examples.PolymorphicMessages.Contracts.csproj new file mode 100644 index 000000000..02cd0ca30 --- /dev/null +++ b/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.Contracts/ServiceConnect.Examples.PolymorphicMessages.Contracts.csproj @@ -0,0 +1,5 @@ + + + + + diff --git a/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.Publisher/Program.cs b/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.Publisher/Program.cs new file mode 100644 index 000000000..ae6f9b4f7 --- /dev/null +++ b/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.Publisher/Program.cs @@ -0,0 +1,41 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.PolymorphicMessages.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Interfaces; + +var settings = ExampleSettingsLoader.Load(); +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +var services = new ServiceCollection(); +services.AddSingleton>([]); +services.AddExampleBus(settings, "polymorphic-messages-publisher"); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); + +// Same correlation id on both events so downstream audit logs can tie the +// OrderPlaced and its later OrderShipped back to one conversation. This is the +// idiom documented in learn/core-concepts/messages.mdx. +var correlationId = Guid.NewGuid(); +const string orderId = "order-42"; + +await bus.PublishAsync(new OrderPlaced(correlationId) +{ + OrderId = orderId, + Total = 129.99m, +}); +ConsoleStatus.Success("polymorphic-messages-publisher", $"published order-placed {orderId}"); + +await bus.PublishAsync(new OrderShipped(correlationId) +{ + OrderId = orderId, + Carrier = "UPS", +}); +ConsoleStatus.Success("polymorphic-messages-publisher", $"published order-shipped {orderId}"); +await Console.Out.FlushAsync(); diff --git a/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.Publisher/ServiceConnect.Examples.PolymorphicMessages.Publisher.csproj b/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.Publisher/ServiceConnect.Examples.PolymorphicMessages.Publisher.csproj new file mode 100644 index 000000000..17264cdb8 --- /dev/null +++ b/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.Publisher/ServiceConnect.Examples.PolymorphicMessages.Publisher.csproj @@ -0,0 +1,10 @@ + + + Exe + + + + + + + diff --git a/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.ShippingSubscriber/OrderShippedHandler.cs b/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.ShippingSubscriber/OrderShippedHandler.cs new file mode 100644 index 000000000..3ec7c03e2 --- /dev/null +++ b/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.ShippingSubscriber/OrderShippedHandler.cs @@ -0,0 +1,14 @@ +using ServiceConnect.Examples.PolymorphicMessages.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.PolymorphicMessages.ShippingSubscriber; + +public sealed class OrderShippedHandler : IMessageHandler +{ + public Task HandleAsync(OrderShipped message, IConsumeContext context, CancellationToken cancellationToken = default) + { + ConsoleStatus.Success("shipping-subscriber", $"processed order-shipped {message.OrderId}"); + return Task.CompletedTask; + } +} diff --git a/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.ShippingSubscriber/Program.cs b/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.ShippingSubscriber/Program.cs new file mode 100644 index 000000000..978066b52 --- /dev/null +++ b/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.ShippingSubscriber/Program.cs @@ -0,0 +1,31 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.PolymorphicMessages.Contracts; +using ServiceConnect.Examples.PolymorphicMessages.ShippingSubscriber; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Interfaces; + +var settings = ExampleSettingsLoader.Load(); +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +var handlerReferences = new List +{ + new() { HandlerType = typeof(OrderShippedHandler), MessageType = typeof(OrderShipped) } +}; + +var services = new ServiceCollection(); +services.AddSingleton>(handlerReferences); +services.AddTransient, OrderShippedHandler>(); +services.AddExampleBus(settings, "shipping-subscriber"); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); +await bus.StartConsumingAsync(); +ConsoleStatus.Ready("shipping-subscriber"); +await Console.Out.FlushAsync(); +await Task.Delay(Timeout.InfiniteTimeSpan); diff --git a/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.ShippingSubscriber/ServiceConnect.Examples.PolymorphicMessages.ShippingSubscriber.csproj b/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.ShippingSubscriber/ServiceConnect.Examples.PolymorphicMessages.ShippingSubscriber.csproj new file mode 100644 index 000000000..17264cdb8 --- /dev/null +++ b/examples/PolymorphicMessages/src/ServiceConnect.Examples.PolymorphicMessages.ShippingSubscriber/ServiceConnect.Examples.PolymorphicMessages.ShippingSubscriber.csproj @@ -0,0 +1,10 @@ + + + Exe + + + + + + + diff --git a/examples/ProcessManager/ProcessManager.sln b/examples/ProcessManager/ProcessManager.sln new file mode 100644 index 000000000..41fd8e118 --- /dev/null +++ b/examples/ProcessManager/ProcessManager.sln @@ -0,0 +1,99 @@ + +Microsoft Visual Studio Solution File, Format Version 12.00 +# Visual Studio Version 17 +VisualStudioVersion = 17.0.31903.59 +MinimumVisualStudioVersion = 10.0.40219.1 +Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{9325A16D-2E5E-4B8A-BE75-B18209F6B2B2}" +EndProject 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The starter submits an order to the orchestrator queue, the orchestrator persists `FulfillmentState` in MongoDB, then advances the process by sending work to inventory and payment workers as each prior step completes. + +## Participants + +- `ServiceConnect.Examples.ProcessManager.Starter` +- `ServiceConnect.Examples.ProcessManager.Orchestrator` +- `ServiceConnect.Examples.ProcessManager.InventoryWorker` +- `ServiceConnect.Examples.ProcessManager.PaymentWorker` +- `MongoDB` + +## Message Flow + +```mermaid +sequenceDiagram + participant Starter + participant Orchestrator + participant InventoryWorker + participant PaymentWorker + participant MongoDB + Starter->>Orchestrator: OrderSubmitted(correlation-id) + Orchestrator->>MongoDB: Insert FulfillmentState + Orchestrator->>InventoryWorker: OrderSubmitted(correlation-id) + InventoryWorker->>Orchestrator: InventoryReserved(correlation-id) + Orchestrator->>MongoDB: Update state (inventory reserved) + Orchestrator->>PaymentWorker: InventoryReserved(correlation-id) + PaymentWorker->>Orchestrator: PaymentCaptured(correlation-id) + Orchestrator->>MongoDB: Update state (completed) +``` + +## Prerequisites + +`docker compose -f ../docker-compose.yml up -d` + +## Run This Example + +`bash run.sh` + +The scripted runners generate unique workflow queues, worker queues, and MongoDB database names so repeated runs stay isolated. + +## Run Manually + +Start the orchestrator and both workers first, then run the starter with the same queue names and correlation id. + +```bash +SC_EXAMPLES_WORKFLOW_QUEUE_NAME=process-manager-orchestrator \ +SC_EXAMPLES_INVENTORY_QUEUE_NAME=process-manager-inventory \ +SC_EXAMPLES_PAYMENT_QUEUE_NAME=process-manager-payment \ +SC_EXAMPLES_DATABASE_NAME=process_manager \ +dotnet run --project src/ServiceConnect.Examples.ProcessManager.Orchestrator/ServiceConnect.Examples.ProcessManager.Orchestrator.csproj & + +SC_EXAMPLES_WORKFLOW_QUEUE_NAME=process-manager-orchestrator \ +SC_EXAMPLES_INVENTORY_QUEUE_NAME=process-manager-inventory \ +dotnet run --project src/ServiceConnect.Examples.ProcessManager.InventoryWorker/ServiceConnect.Examples.ProcessManager.InventoryWorker.csproj & + +SC_EXAMPLES_WORKFLOW_QUEUE_NAME=process-manager-orchestrator \ +SC_EXAMPLES_PAYMENT_QUEUE_NAME=process-manager-payment \ +dotnet run --project src/ServiceConnect.Examples.ProcessManager.PaymentWorker/ServiceConnect.Examples.ProcessManager.PaymentWorker.csproj & + +SC_EXAMPLES_WORKFLOW_QUEUE_NAME=process-manager-orchestrator \ +SC_EXAMPLES_CORRELATION_ID=11111111-1111-1111-1111-111111111111 \ +dotnet run --project src/ServiceConnect.Examples.ProcessManager.Starter/ServiceConnect.Examples.ProcessManager.Starter.csproj +``` + +## Expected Output + +`READY:process-manager-orchestrator` + +`READY:inventory-worker` + +`READY:payment-worker` + +`SUCCESS:process-manager-starter:submitted ` + +`SUCCESS:process-manager-orchestrator:started workflow ` + +`SUCCESS:inventory-worker:reserved inventory for ` + +`SUCCESS:process-manager-orchestrator:inventory reserved for ` + +`SUCCESS:payment-worker:captured payment for ` + +`SUCCESS:process-manager-orchestrator:completed workflow ` + +## What To Notice + +The workers do not persist workflow state and do not decide the next step. They only report completion events back to the orchestrator queue. The orchestrator is the single place that correlates messages, mutates `FulfillmentState`, and makes the next routing decision. + +## Contracts + +**Handler signature.** `IProcessHandler.HandleAsync` receives the per-message `IConsumeContext` as a parameter — safe under singleton-registered handlers because nothing about the dispatch is shared via instance state. + +```csharp +public async Task HandleAsync(OrderSubmitted message, FulfillmentState data, IConsumeContext context, CancellationToken cancellationToken = default) +{ + await context.Bus.SendAsync(new OrderSubmitted(message.CorrelationId) { ... }, options, context.CancellationToken); +} +``` + +**Saga retry — fresh-copy contract.** When a handler throws, the framework skips persistence and retries by re-fetching state via `IProcessManagerFinder.FindDataAsync`. Each call MUST return a fresh `Data` reference so mutations from the failed attempt do not leak into the retry. Both built-in persistors (MongoDB and InMemory) comply with this contract. + +**Timeout dispatch is at-most-once while the lease holds.** `ProcessManagerTimeoutService` checks the lease deadline before and after `SendAsync`; if the lease has expired post-send, the `Remove` is skipped and the lease-expiry sweep reclaims the row. The worst case is one duplicate send, which is consistent with the at-least-once timeout delivery guarantee. diff --git a/examples/ProcessManager/run.ps1 b/examples/ProcessManager/run.ps1 new file mode 100644 index 000000000..2cbdd0dc6 --- /dev/null +++ b/examples/ProcessManager/run.ps1 @@ -0,0 +1,107 @@ +$ErrorActionPreference = 'Stop' +$PSNativeCommandUseErrorActionPreference = $true + +. "$PSScriptRoot/../scripts/common.ps1" + +$orchestratorProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.ProcessManager.Orchestrator/ServiceConnect.Examples.ProcessManager.Orchestrator.csproj' +$inventoryProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.ProcessManager.InventoryWorker/ServiceConnect.Examples.ProcessManager.InventoryWorker.csproj' +$paymentProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.ProcessManager.PaymentWorker/ServiceConnect.Examples.ProcessManager.PaymentWorker.csproj' +$starterProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.ProcessManager.Starter/ServiceConnect.Examples.ProcessManager.Starter.csproj' +$OUTPUT_LOG = Join-Path $PSScriptRoot 'output.log' +$runId = [DateTimeOffset]::UtcNow.ToUnixTimeMilliseconds().ToString() + '-' + [Guid]::NewGuid().ToString('N') +$workflowQueueName = "process-manager-orchestrator-$runId" +$inventoryQueueName = "process-manager-inventory-$runId" +$paymentQueueName = "process-manager-payment-$runId" +$databaseName = "process_manager_$($runId.Replace('-', '_'))" +$correlationId = [Guid]::NewGuid().ToString() +$orchestratorProcess = $null +$inventoryProcess = $null +$paymentProcess = $null +$starterJob = $null + +function Wait-ForReady { + $timeout = 30 + $elapsed = 0 + + while ($elapsed -lt $timeout) { + if ((Test-Path $OUTPUT_LOG) -and + (Select-String -Path $OUTPUT_LOG -Pattern '^READY:process-manager-orchestrator$' -Quiet) -and + (Select-String -Path $OUTPUT_LOG -Pattern '^READY:inventory-worker$' -Quiet) -and + (Select-String -Path $OUTPUT_LOG -Pattern '^READY:payment-worker$' -Quiet)) { + return $true + } + + Start-Sleep -Milliseconds 500 + $elapsed += 0.5 + } + + return $false +} + +function Wait-ForCompletion { + $timeout = 30 + $elapsed = 0 + + while ($elapsed -lt $timeout) { + if ((Test-Path $OUTPUT_LOG) -and + (Select-String -Path $OUTPUT_LOG -Pattern "^SUCCESS:process-manager-starter:submitted $correlationId$" -Quiet) -and + (Select-String -Path $OUTPUT_LOG -Pattern "^SUCCESS:process-manager-orchestrator:started workflow $correlationId$" -Quiet) -and + (Select-String -Path $OUTPUT_LOG -Pattern "^SUCCESS:inventory-worker:reserved inventory for $correlationId$" -Quiet) -and + (Select-String -Path $OUTPUT_LOG -Pattern "^SUCCESS:process-manager-orchestrator:inventory reserved for $correlationId$" -Quiet) -and + (Select-String -Path $OUTPUT_LOG -Pattern "^SUCCESS:payment-worker:captured payment for $correlationId$" -Quiet) -and + (Select-String -Path $OUTPUT_LOG -Pattern "^SUCCESS:process-manager-orchestrator:completed workflow $correlationId$" -Quiet)) { + return $true + } + + Start-Sleep -Milliseconds 500 + $elapsed += 0.5 + } + + return $false +} + +try { + Start-ExampleDependencies + '' | Set-Content -Path $OUTPUT_LOG + + $orchestratorProcess = Start-Process pwsh -ArgumentList @('-NoProfile', '-Command', "`$env:SC_EXAMPLES_WORKFLOW_QUEUE_NAME='$workflowQueueName'; `$env:SC_EXAMPLES_INVENTORY_QUEUE_NAME='$inventoryQueueName'; `$env:SC_EXAMPLES_PAYMENT_QUEUE_NAME='$paymentQueueName'; `$env:SC_EXAMPLES_DATABASE_NAME='$databaseName'; dotnet run --project '$orchestratorProject' 2>&1 | Out-File -FilePath '$OUTPUT_LOG' -Append") -PassThru -NoNewWindow + $inventoryProcess = Start-Process pwsh -ArgumentList @('-NoProfile', '-Command', "`$env:SC_EXAMPLES_WORKFLOW_QUEUE_NAME='$workflowQueueName'; `$env:SC_EXAMPLES_INVENTORY_QUEUE_NAME='$inventoryQueueName'; dotnet run --project '$inventoryProject' 2>&1 | Out-File -FilePath '$OUTPUT_LOG' -Append") -PassThru -NoNewWindow + $paymentProcess = Start-Process pwsh -ArgumentList @('-NoProfile', '-Command', "`$env:SC_EXAMPLES_WORKFLOW_QUEUE_NAME='$workflowQueueName'; `$env:SC_EXAMPLES_PAYMENT_QUEUE_NAME='$paymentQueueName'; dotnet run --project '$paymentProject' 2>&1 | Out-File -FilePath '$OUTPUT_LOG' -Append") -PassThru -NoNewWindow + + if (-not (Wait-ForReady)) { + throw 'Process manager services did not become ready within 30 seconds' + } + + $starterJob = Start-Job -ScriptBlock { + $env:SC_EXAMPLES_WORKFLOW_QUEUE_NAME = $using:workflowQueueName + $env:SC_EXAMPLES_CORRELATION_ID = $using:correlationId + dotnet run --project $using:starterProject 2>&1 | Out-File -FilePath $using:OUTPUT_LOG -Append + } + + $starterJob | Wait-Job | Remove-Job -Force + $starterJob = $null + + if (-not (Wait-ForCompletion)) { + throw 'Process manager workflow did not complete within 30 seconds' + } +} +finally { + if ($null -ne $starterJob) { + Remove-Job -Job $starterJob -Force -ErrorAction SilentlyContinue + } + + if ($null -ne $paymentProcess -and -not $paymentProcess.HasExited) { + Stop-Process -Id $paymentProcess.Id -Force -ErrorAction SilentlyContinue + $paymentProcess.WaitForExit() + } + + if ($null -ne $inventoryProcess -and -not $inventoryProcess.HasExited) { + Stop-Process -Id $inventoryProcess.Id -Force -ErrorAction SilentlyContinue + $inventoryProcess.WaitForExit() + } + + if ($null -ne $orchestratorProcess -and -not $orchestratorProcess.HasExited) { + Stop-Process -Id $orchestratorProcess.Id -Force -ErrorAction SilentlyContinue + $orchestratorProcess.WaitForExit() + } +} diff --git a/examples/ProcessManager/run.sh b/examples/ProcessManager/run.sh new file mode 100755 index 000000000..422248bc2 --- /dev/null +++ b/examples/ProcessManager/run.sh @@ -0,0 +1,111 @@ +#!/usr/bin/env bash +set -euo pipefail + +SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)" +source "$SCRIPT_DIR/../scripts/common.sh" + +OUTPUT_LOG="$SCRIPT_DIR/output.log" +RUN_ID=$(date +%s%N) +WORKFLOW_QUEUE_NAME="process-manager-orchestrator-${RUN_ID}" +INVENTORY_QUEUE_NAME="process-manager-inventory-${RUN_ID}" +PAYMENT_QUEUE_NAME="process-manager-payment-${RUN_ID}" +DATABASE_NAME="process_manager_${RUN_ID}" +CORRELATION_ID=$(cat /proc/sys/kernel/random/uuid) +PIDS=() + +cleanup() { + for pid in "${PIDS[@]:-}"; do + kill "$pid" 2>/dev/null || true + done + + for pid in "${PIDS[@]:-}"; do + wait "$pid" 2>/dev/null || true + done +} + +trap cleanup EXIT + +wait_for_ready() { + local max_attempts=60 + local attempt=0 + + while [ $attempt -lt $max_attempts ]; do + if grep -q '^READY:process-manager-orchestrator$' "$OUTPUT_LOG" 2>/dev/null && + grep -q '^READY:inventory-worker$' "$OUTPUT_LOG" 2>/dev/null && + grep -q '^READY:payment-worker$' "$OUTPUT_LOG" 2>/dev/null; then + return 0 + fi + + sleep 0.5 + attempt=$((attempt + 1)) + done + + return 1 +} + +verification_complete() { + grep -q "^SUCCESS:process-manager-starter:submitted ${CORRELATION_ID}$" "$OUTPUT_LOG" 2>/dev/null && + grep -q "^SUCCESS:process-manager-orchestrator:started workflow ${CORRELATION_ID}$" "$OUTPUT_LOG" 2>/dev/null && + grep -q "^SUCCESS:inventory-worker:reserved inventory for ${CORRELATION_ID}$" "$OUTPUT_LOG" 2>/dev/null && + grep -q "^SUCCESS:process-manager-orchestrator:inventory reserved for ${CORRELATION_ID}$" "$OUTPUT_LOG" 2>/dev/null && + grep -q "^SUCCESS:payment-worker:captured payment for ${CORRELATION_ID}$" "$OUTPUT_LOG" 2>/dev/null && + grep -q "^SUCCESS:process-manager-orchestrator:completed workflow ${CORRELATION_ID}$" "$OUTPUT_LOG" 2>/dev/null && + docker compose -f "$SCRIPT_DIR/../docker-compose.yml" exec -T mongodb mongosh --quiet "$DATABASE_NAME" --eval "const doc = db['ServiceConnect.Examples.ProcessManager.Contracts.FulfillmentState'].findOne({ 'Data.CorrelationId': UUID('${CORRELATION_ID}') }); if (!doc || !doc.Data.IsCompleted || !doc.Data.InventoryReserved || !doc.Data.PaymentCaptured) { quit(1); }" >/dev/null 2>&1 +} + +wait_for_completion() { + local max_attempts=60 + local attempt=0 + + while [ $attempt -lt $max_attempts ]; do + if verification_complete; then + return 0 + fi + + sleep 0.5 + attempt=$((attempt + 1)) + done + + return 1 +} + +start_dependencies +prebuild_solution "$SCRIPT_DIR/ProcessManager.sln" +> "$OUTPUT_LOG" + +SC_EXAMPLES_WORKFLOW_QUEUE_NAME="$WORKFLOW_QUEUE_NAME" \ + SC_EXAMPLES_INVENTORY_QUEUE_NAME="$INVENTORY_QUEUE_NAME" \ + SC_EXAMPLES_PAYMENT_QUEUE_NAME="$PAYMENT_QUEUE_NAME" \ + SC_EXAMPLES_DATABASE_NAME="$DATABASE_NAME" \ + dotnet run --no-build --project "$SCRIPT_DIR/src/ServiceConnect.Examples.ProcessManager.Orchestrator/ServiceConnect.Examples.ProcessManager.Orchestrator.csproj" >> "$OUTPUT_LOG" 2>&1 & +ORCHESTRATOR_PID=$! +PIDS+=("$ORCHESTRATOR_PID") + +SC_EXAMPLES_WORKFLOW_QUEUE_NAME="$WORKFLOW_QUEUE_NAME" \ + SC_EXAMPLES_INVENTORY_QUEUE_NAME="$INVENTORY_QUEUE_NAME" \ + dotnet run --no-build --project "$SCRIPT_DIR/src/ServiceConnect.Examples.ProcessManager.InventoryWorker/ServiceConnect.Examples.ProcessManager.InventoryWorker.csproj" >> "$OUTPUT_LOG" 2>&1 & +INVENTORY_PID=$! +PIDS+=("$INVENTORY_PID") + +SC_EXAMPLES_WORKFLOW_QUEUE_NAME="$WORKFLOW_QUEUE_NAME" \ + SC_EXAMPLES_PAYMENT_QUEUE_NAME="$PAYMENT_QUEUE_NAME" \ + dotnet run --no-build --project "$SCRIPT_DIR/src/ServiceConnect.Examples.ProcessManager.PaymentWorker/ServiceConnect.Examples.ProcessManager.PaymentWorker.csproj" >> "$OUTPUT_LOG" 2>&1 & +PAYMENT_PID=$! +PIDS+=("$PAYMENT_PID") + +if ! wait_for_ready; then + echo "ERROR: Process manager services did not become ready within 30 seconds" + exit 1 +fi + +SC_EXAMPLES_WORKFLOW_QUEUE_NAME="$WORKFLOW_QUEUE_NAME" \ + SC_EXAMPLES_CORRELATION_ID="$CORRELATION_ID" \ + dotnet run --no-build --project "$SCRIPT_DIR/src/ServiceConnect.Examples.ProcessManager.Starter/ServiceConnect.Examples.ProcessManager.Starter.csproj" >> "$OUTPUT_LOG" 2>&1 & +STARTER_PID=$! +PIDS+=("$STARTER_PID") +wait "$STARTER_PID" + +if ! wait_for_completion; then + echo "ERROR: Process manager workflow did not complete within 30 seconds" + exit 1 +fi diff --git a/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.Contracts/FulfillmentState.cs b/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.Contracts/FulfillmentState.cs new file mode 100644 index 000000000..bb2d46d5b --- /dev/null +++ b/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.Contracts/FulfillmentState.cs @@ -0,0 +1,18 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.ProcessManager.Contracts; + +public sealed class FulfillmentState : IProcessManagerData +{ + public Guid CorrelationId { get; set; } + + public string OrderNumber { get; set; } = string.Empty; + + public bool IsSubmitted { get; set; } + + public bool InventoryReserved { get; set; } + + public bool PaymentCaptured { get; set; } + + public bool IsCompleted { get; set; } +} diff --git a/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.Contracts/InventoryReserved.cs b/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.Contracts/InventoryReserved.cs new file mode 100644 index 000000000..764147844 --- /dev/null +++ b/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.Contracts/InventoryReserved.cs @@ -0,0 +1,8 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.ProcessManager.Contracts; + +public sealed class InventoryReserved(Guid correlationId) : Message(correlationId) +{ + public string OrderNumber { get; init; } = string.Empty; +} diff --git a/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.Contracts/OrderSubmitted.cs b/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.Contracts/OrderSubmitted.cs new file mode 100644 index 000000000..1a0596b69 --- /dev/null +++ b/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.Contracts/OrderSubmitted.cs @@ -0,0 +1,8 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.ProcessManager.Contracts; + +public sealed class OrderSubmitted(Guid correlationId) : Message(correlationId) +{ + public string OrderNumber { get; init; } = string.Empty; +} diff --git a/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.Contracts/PaymentCaptured.cs b/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.Contracts/PaymentCaptured.cs new file mode 100644 index 000000000..5a796ef19 --- /dev/null +++ b/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.Contracts/PaymentCaptured.cs @@ -0,0 +1,8 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.ProcessManager.Contracts; + +public sealed class PaymentCaptured(Guid correlationId) : Message(correlationId) +{ + public string OrderNumber { get; init; } = string.Empty; +} diff --git a/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.Contracts/ServiceConnect.Examples.ProcessManager.Contracts.csproj b/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.Contracts/ServiceConnect.Examples.ProcessManager.Contracts.csproj new file mode 100644 index 000000000..02cd0ca30 --- /dev/null +++ b/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.Contracts/ServiceConnect.Examples.ProcessManager.Contracts.csproj @@ -0,0 +1,5 @@ + + + + + diff --git a/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.InventoryWorker/OrderSubmittedHandler.cs b/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.InventoryWorker/OrderSubmittedHandler.cs new file mode 100644 index 000000000..aa0361b67 --- /dev/null +++ b/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.InventoryWorker/OrderSubmittedHandler.cs @@ -0,0 +1,22 @@ +using ServiceConnect.Examples.ProcessManager.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; + +namespace ServiceConnect.Examples.ProcessManager.InventoryWorker; + +public sealed record WorkflowQueue(string Name); + +public sealed class OrderSubmittedHandler(WorkflowQueue workflowQueue) : IMessageHandler +{ + public async Task HandleAsync(OrderSubmitted message, IConsumeContext context, CancellationToken cancellationToken = default) + { + ConsoleStatus.Success("inventory-worker", $"reserved inventory for {message.CorrelationId}"); + await Console.Out.FlushAsync(); + + await context.Bus.SendAsync( + new InventoryReserved(message.CorrelationId) { OrderNumber = message.OrderNumber }, + new SendOptions { EndPoint = workflowQueue.Name }, + context.CancellationToken); + } +} diff --git a/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.InventoryWorker/Program.cs b/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.InventoryWorker/Program.cs new file mode 100644 index 000000000..567d47d0a --- /dev/null +++ b/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.InventoryWorker/Program.cs @@ -0,0 +1,35 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.ProcessManager.Contracts; +using ServiceConnect.Examples.ProcessManager.InventoryWorker; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Interfaces; + +var settings = ExampleSettingsLoader.Load(); +var inventoryQueueName = Environment.GetEnvironmentVariable("SC_EXAMPLES_INVENTORY_QUEUE_NAME") ?? "process-manager-inventory"; +var workflowQueueName = Environment.GetEnvironmentVariable("SC_EXAMPLES_WORKFLOW_QUEUE_NAME") ?? "process-manager-orchestrator"; + +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +var handlerReferences = new List +{ + new() { HandlerType = typeof(OrderSubmittedHandler), MessageType = typeof(OrderSubmitted) } +}; + +var services = new ServiceCollection(); +services.AddSingleton>(handlerReferences); +services.AddSingleton(new WorkflowQueue(workflowQueueName)); +services.AddTransient, OrderSubmittedHandler>(); +services.AddExampleBus(settings, inventoryQueueName); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); +await bus.StartConsumingAsync(); +ConsoleStatus.Ready("inventory-worker"); +await Console.Out.FlushAsync(); +await Task.Delay(Timeout.InfiniteTimeSpan); diff --git a/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.InventoryWorker/ServiceConnect.Examples.ProcessManager.InventoryWorker.csproj b/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.InventoryWorker/ServiceConnect.Examples.ProcessManager.InventoryWorker.csproj new file mode 100644 index 000000000..dc434f08d --- /dev/null +++ b/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.InventoryWorker/ServiceConnect.Examples.ProcessManager.InventoryWorker.csproj @@ -0,0 +1,10 @@ + + + Exe + + + + + + + diff --git a/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.Orchestrator/FulfillmentProcessHandler.cs b/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.Orchestrator/FulfillmentProcessHandler.cs new file mode 100644 index 000000000..ab9edc909 --- /dev/null +++ b/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.Orchestrator/FulfillmentProcessHandler.cs @@ -0,0 +1,67 @@ +using ServiceConnect.Examples.ProcessManager.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; + +namespace ServiceConnect.Examples.ProcessManager.Orchestrator; + +public sealed record WorkflowQueues(string WorkflowQueueName, string InventoryQueueName, string PaymentQueueName); + +public sealed class FulfillmentProcessHandler(WorkflowQueues queues) : + IProcessHandler, + IProcessHandler, + IProcessHandler +{ + private readonly WorkflowQueues _queues = queues; + + public async Task HandleAsync(OrderSubmitted message, FulfillmentState data, IConsumeContext context, CancellationToken cancellationToken = default) + { + if (data.IsSubmitted) + { + return; + } + + data.OrderNumber = message.OrderNumber; + data.IsSubmitted = true; + + ConsoleStatus.Success("process-manager-orchestrator", $"started workflow {message.CorrelationId}"); + await Console.Out.FlushAsync(); + + await context.Bus.SendAsync( + new OrderSubmitted(message.CorrelationId) { OrderNumber = message.OrderNumber }, + new SendOptions { EndPoint = _queues.InventoryQueueName }, + context.CancellationToken); + } + + public async Task HandleAsync(InventoryReserved message, FulfillmentState data, IConsumeContext context, CancellationToken cancellationToken = default) + { + if (data.InventoryReserved) + { + return; + } + + data.InventoryReserved = true; + + ConsoleStatus.Success("process-manager-orchestrator", $"inventory reserved for {message.CorrelationId}"); + await Console.Out.FlushAsync(); + + await context.Bus.SendAsync( + new InventoryReserved(message.CorrelationId) { OrderNumber = message.OrderNumber }, + new SendOptions { EndPoint = _queues.PaymentQueueName }, + context.CancellationToken); + } + + public Task HandleAsync(PaymentCaptured message, FulfillmentState data, IConsumeContext context, CancellationToken cancellationToken = default) + { + if (data.PaymentCaptured) + { + return Task.CompletedTask; + } + + data.PaymentCaptured = true; + data.IsCompleted = true; + + ConsoleStatus.Success("process-manager-orchestrator", $"completed workflow {message.CorrelationId}"); + return Console.Out.FlushAsync(); + } +} diff --git a/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.Orchestrator/Program.cs b/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.Orchestrator/Program.cs new file mode 100644 index 000000000..d4c369419 --- /dev/null +++ b/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.Orchestrator/Program.cs @@ -0,0 +1,45 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.ProcessManager.Contracts; +using ServiceConnect.Examples.ProcessManager.Orchestrator; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Interfaces; + +var settings = ExampleSettingsLoader.Load(); +var workflowQueueName = Environment.GetEnvironmentVariable("SC_EXAMPLES_WORKFLOW_QUEUE_NAME") ?? "process-manager-orchestrator"; +var inventoryQueueName = Environment.GetEnvironmentVariable("SC_EXAMPLES_INVENTORY_QUEUE_NAME") ?? "process-manager-inventory"; +var paymentQueueName = Environment.GetEnvironmentVariable("SC_EXAMPLES_PAYMENT_QUEUE_NAME") ?? "process-manager-payment"; +var databaseName = Environment.GetEnvironmentVariable("SC_EXAMPLES_DATABASE_NAME") ?? "process_manager"; + +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +await DependencyWaiter.WaitForMongoDbAsync( + settings.MongoConnectionString, + CancellationToken.None); + +var handlerReferences = new List +{ + new() { HandlerType = typeof(FulfillmentProcessHandler), MessageType = typeof(OrderSubmitted) }, + new() { HandlerType = typeof(FulfillmentProcessHandler), MessageType = typeof(InventoryReserved) }, + new() { HandlerType = typeof(FulfillmentProcessHandler), MessageType = typeof(PaymentCaptured) } +}; + +var services = new ServiceCollection(); +services.AddSingleton>(handlerReferences); +services.AddSingleton(new WorkflowQueues(workflowQueueName, inventoryQueueName, paymentQueueName)); +services.AddTransient, FulfillmentProcessHandler>(); +services.AddTransient, FulfillmentProcessHandler>(); +services.AddTransient, FulfillmentProcessHandler>(); +services.AddExampleBus(settings, workflowQueueName, useMongoDb: true, databaseName: databaseName); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); +await bus.StartConsumingAsync(); +ConsoleStatus.Ready("process-manager-orchestrator"); +await Console.Out.FlushAsync(); +await Task.Delay(Timeout.InfiniteTimeSpan); diff --git a/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.Orchestrator/ServiceConnect.Examples.ProcessManager.Orchestrator.csproj b/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.Orchestrator/ServiceConnect.Examples.ProcessManager.Orchestrator.csproj new file mode 100644 index 000000000..dc434f08d --- /dev/null +++ b/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.Orchestrator/ServiceConnect.Examples.ProcessManager.Orchestrator.csproj @@ -0,0 +1,10 @@ + + + Exe + + + + + + + diff --git a/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.PaymentWorker/InventoryReservedHandler.cs b/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.PaymentWorker/InventoryReservedHandler.cs new file mode 100644 index 000000000..711fd0dec --- /dev/null +++ b/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.PaymentWorker/InventoryReservedHandler.cs @@ -0,0 +1,22 @@ +using ServiceConnect.Examples.ProcessManager.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; + +namespace ServiceConnect.Examples.ProcessManager.PaymentWorker; + +public sealed record WorkflowQueue(string Name); + +public sealed class InventoryReservedHandler(WorkflowQueue workflowQueue) : IMessageHandler +{ + public async Task HandleAsync(InventoryReserved message, IConsumeContext context, CancellationToken cancellationToken = default) + { + ConsoleStatus.Success("payment-worker", $"captured payment for {message.CorrelationId}"); + await Console.Out.FlushAsync(); + + await context.Bus.SendAsync( + new PaymentCaptured(message.CorrelationId) { OrderNumber = message.OrderNumber }, + new SendOptions { EndPoint = workflowQueue.Name }, + context.CancellationToken); + } +} diff --git a/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.PaymentWorker/Program.cs b/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.PaymentWorker/Program.cs new file mode 100644 index 000000000..297efa489 --- /dev/null +++ b/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.PaymentWorker/Program.cs @@ -0,0 +1,35 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.ProcessManager.Contracts; +using ServiceConnect.Examples.ProcessManager.PaymentWorker; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Interfaces; + +var settings = ExampleSettingsLoader.Load(); +var paymentQueueName = Environment.GetEnvironmentVariable("SC_EXAMPLES_PAYMENT_QUEUE_NAME") ?? "process-manager-payment"; +var workflowQueueName = Environment.GetEnvironmentVariable("SC_EXAMPLES_WORKFLOW_QUEUE_NAME") ?? "process-manager-orchestrator"; + +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +var handlerReferences = new List +{ + new() { HandlerType = typeof(InventoryReservedHandler), MessageType = typeof(InventoryReserved) } +}; + +var services = new ServiceCollection(); +services.AddSingleton>(handlerReferences); +services.AddSingleton(new WorkflowQueue(workflowQueueName)); +services.AddTransient, InventoryReservedHandler>(); +services.AddExampleBus(settings, paymentQueueName); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); +await bus.StartConsumingAsync(); +ConsoleStatus.Ready("payment-worker"); +await Console.Out.FlushAsync(); +await Task.Delay(Timeout.InfiniteTimeSpan); diff --git a/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.PaymentWorker/ServiceConnect.Examples.ProcessManager.PaymentWorker.csproj b/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.PaymentWorker/ServiceConnect.Examples.ProcessManager.PaymentWorker.csproj new file mode 100644 index 000000000..dc434f08d --- /dev/null +++ b/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.PaymentWorker/ServiceConnect.Examples.ProcessManager.PaymentWorker.csproj @@ -0,0 +1,10 @@ + + + Exe + + + + + + + diff --git a/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.Starter/Program.cs b/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.Starter/Program.cs new file mode 100644 index 000000000..f3744bb78 --- /dev/null +++ b/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.Starter/Program.cs @@ -0,0 +1,35 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.ProcessManager.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; + +var settings = ExampleSettingsLoader.Load(); +var workflowQueueName = Environment.GetEnvironmentVariable("SC_EXAMPLES_WORKFLOW_QUEUE_NAME") ?? "process-manager-orchestrator"; +var correlationId = Guid.TryParse(Environment.GetEnvironmentVariable("SC_EXAMPLES_CORRELATION_ID"), out var parsedCorrelationId) + ? parsedCorrelationId + : Guid.NewGuid(); + +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +var services = new ServiceCollection(); +services.AddSingleton>([]); +services.AddExampleBus(settings, "process-manager-starter"); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); +await bus.SendAsync( + new OrderSubmitted(correlationId) + { + OrderNumber = $"order-{correlationId:N}" + }, + new SendOptions { EndPoint = workflowQueueName }); + +ConsoleStatus.Success("process-manager-starter", $"submitted {correlationId}"); +await Console.Out.FlushAsync(); diff --git a/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.Starter/ServiceConnect.Examples.ProcessManager.Starter.csproj b/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.Starter/ServiceConnect.Examples.ProcessManager.Starter.csproj new file mode 100644 index 000000000..dc434f08d --- /dev/null +++ b/examples/ProcessManager/src/ServiceConnect.Examples.ProcessManager.Starter/ServiceConnect.Examples.ProcessManager.Starter.csproj @@ -0,0 +1,10 @@ + + + Exe + + + + + + + diff --git a/examples/PublishSubscribe/PublishSubscribe.sln b/examples/PublishSubscribe/PublishSubscribe.sln new file mode 100644 index 000000000..5c34c67cb --- /dev/null +++ b/examples/PublishSubscribe/PublishSubscribe.sln @@ -0,0 +1,84 @@ + +Microsoft Visual Studio Solution File, Format Version 12.00 +# Visual Studio Version 17 +VisualStudioVersion = 17.0.31903.59 +MinimumVisualStudioVersion = 10.0.40219.1 +Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", 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{A1B2C3D4-E5F6-7890-ABCD-EF1234567890}.Debug|x86.Build.0 = Debug|Any CPU + {A1B2C3D4-E5F6-7890-ABCD-EF1234567890}.Release|Any CPU.ActiveCfg = Release|Any CPU + {A1B2C3D4-E5F6-7890-ABCD-EF1234567890}.Release|Any CPU.Build.0 = Release|Any CPU + {A1B2C3D4-E5F6-7890-ABCD-EF1234567890}.Release|x64.ActiveCfg = Release|Any CPU + {A1B2C3D4-E5F6-7890-ABCD-EF1234567890}.Release|x64.Build.0 = Release|Any CPU + {A1B2C3D4-E5F6-7890-ABCD-EF1234567890}.Release|x86.ActiveCfg = Release|Any CPU + {A1B2C3D4-E5F6-7890-ABCD-EF1234567890}.Release|x86.Build.0 = Release|Any CPU + {B2C3D4E5-F6A7-8901-BCDE-F12345678901}.Debug|Any CPU.ActiveCfg = Debug|Any CPU + {B2C3D4E5-F6A7-8901-BCDE-F12345678901}.Debug|Any CPU.Build.0 = Debug|Any CPU + {B2C3D4E5-F6A7-8901-BCDE-F12345678901}.Debug|x64.ActiveCfg = Debug|Any CPU + {B2C3D4E5-F6A7-8901-BCDE-F12345678901}.Debug|x64.Build.0 = Debug|Any CPU + {B2C3D4E5-F6A7-8901-BCDE-F12345678901}.Debug|x86.ActiveCfg = Debug|Any CPU + {B2C3D4E5-F6A7-8901-BCDE-F12345678901}.Debug|x86.Build.0 = Debug|Any CPU + {B2C3D4E5-F6A7-8901-BCDE-F12345678901}.Release|Any CPU.ActiveCfg = Release|Any CPU + {B2C3D4E5-F6A7-8901-BCDE-F12345678901}.Release|Any CPU.Build.0 = Release|Any CPU + {B2C3D4E5-F6A7-8901-BCDE-F12345678901}.Release|x64.ActiveCfg = Release|Any CPU + {B2C3D4E5-F6A7-8901-BCDE-F12345678901}.Release|x64.Build.0 = Release|Any CPU + {B2C3D4E5-F6A7-8901-BCDE-F12345678901}.Release|x86.ActiveCfg = Release|Any CPU + {B2C3D4E5-F6A7-8901-BCDE-F12345678901}.Release|x86.Build.0 = Release|Any CPU + {C3D4E5F6-A7B8-9012-CDEF-123456789012}.Debug|Any CPU.ActiveCfg = Debug|Any CPU + {C3D4E5F6-A7B8-9012-CDEF-123456789012}.Debug|Any CPU.Build.0 = Debug|Any CPU + {C3D4E5F6-A7B8-9012-CDEF-123456789012}.Debug|x64.ActiveCfg = Debug|Any CPU + {C3D4E5F6-A7B8-9012-CDEF-123456789012}.Debug|x64.Build.0 = Debug|Any CPU + {C3D4E5F6-A7B8-9012-CDEF-123456789012}.Debug|x86.ActiveCfg = Debug|Any CPU + 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{D4E5F6A7-B8C9-0123-DEF0-234567890123}.Debug|x86.Build.0 = Debug|Any CPU + {D4E5F6A7-B8C9-0123-DEF0-234567890123}.Release|Any CPU.ActiveCfg = Release|Any CPU + {D4E5F6A7-B8C9-0123-DEF0-234567890123}.Release|Any CPU.Build.0 = Release|Any CPU + {D4E5F6A7-B8C9-0123-DEF0-234567890123}.Release|x64.ActiveCfg = Release|Any CPU + {D4E5F6A7-B8C9-0123-DEF0-234567890123}.Release|x64.Build.0 = Release|Any CPU + {D4E5F6A7-B8C9-0123-DEF0-234567890123}.Release|x86.ActiveCfg = Release|Any CPU + {D4E5F6A7-B8C9-0123-DEF0-234567890123}.Release|x86.Build.0 = Release|Any CPU + EndGlobalSection + GlobalSection(SolutionProperties) = preSolution + HideSolutionNode = FALSE + EndGlobalSection + GlobalSection(NestedProjects) = preSolution + {A1B2C3D4-E5F6-7890-ABCD-EF1234567890} = {827E0CD3-B72D-47B6-A68D-7590B98EB39B} + {B2C3D4E5-F6A7-8901-BCDE-F12345678901} = {827E0CD3-B72D-47B6-A68D-7590B98EB39B} + {C3D4E5F6-A7B8-9012-CDEF-123456789012} = {827E0CD3-B72D-47B6-A68D-7590B98EB39B} + {D4E5F6A7-B8C9-0123-DEF0-234567890123} = {827E0CD3-B72D-47B6-A68D-7590B98EB39B} + EndGlobalSection +EndGlobal diff --git a/examples/PublishSubscribe/README.md b/examples/PublishSubscribe/README.md new file mode 100644 index 000000000..8dcab3c88 --- /dev/null +++ b/examples/PublishSubscribe/README.md @@ -0,0 +1,58 @@ +# PublishSubscribe + +## Overview + +Publish one event from a publisher to multiple subscribers. The event is sent to all subscribers simultaneously, demonstrating the fan-out messaging pattern. + +## Participants + +- `ServiceConnect.Examples.PublishSubscribe.Publisher` +- `ServiceConnect.Examples.PublishSubscribe.BillingSubscriber` +- `ServiceConnect.Examples.PublishSubscribe.AnalyticsSubscriber` + +## Message Flow + +```mermaid +sequenceDiagram + participant Publisher + participant BillingSubscriber + participant AnalyticsSubscriber + Publisher->>BillingSubscriber: OrderPlaced(order-100) + Publisher->>AnalyticsSubscriber: OrderPlaced(order-100) +``` + +## Prerequisites + +`docker compose -f ../docker-compose.yml up -d` + +## Run This Example + +`bash run.sh` + +## Run Manually + +Run both subscribers first, then the publisher. + +`dotnet run --project src/ServiceConnect.Examples.PublishSubscribe.BillingSubscriber/ServiceConnect.Examples.PublishSubscribe.BillingSubscriber.csproj` + +`dotnet run --project src/ServiceConnect.Examples.PublishSubscribe.AnalyticsSubscriber/ServiceConnect.Examples.PublishSubscribe.AnalyticsSubscriber.csproj` + +`dotnet run --project src/ServiceConnect.Examples.PublishSubscribe.Publisher/ServiceConnect.Examples.PublishSubscribe.Publisher.csproj` + +## Expected Output + +`READY:billing-subscriber` + +`READY:analytics-subscriber` + +`SUCCESS:publish-subscribe-publisher:published order-100` + +`SUCCESS:billing-subscriber:processed order-100` + +`SUCCESS:analytics-subscriber:processed order-100` + +Note: The `SUCCESS` lines from the two subscriber processes may interleave in the output, since they run concurrently. The exact order of those two lines may vary between runs. + +## What To Notice + +The publisher broadcasts the event to all subscribers. Each subscriber independently processes the same message, demonstrating how publish/subscribe enables one-to-many message distribution. diff --git a/examples/PublishSubscribe/run.ps1 b/examples/PublishSubscribe/run.ps1 new file mode 100644 index 000000000..556d098a4 --- /dev/null +++ b/examples/PublishSubscribe/run.ps1 @@ -0,0 +1,87 @@ +$ErrorActionPreference = 'Stop' +$PSNativeCommandUseErrorActionPreference = $true + +. "$PSScriptRoot/../scripts/common.ps1" + +$billingSubscriberProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.PublishSubscribe.BillingSubscriber/ServiceConnect.Examples.PublishSubscribe.BillingSubscriber.csproj' +$analyticsSubscriberProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.PublishSubscribe.AnalyticsSubscriber/ServiceConnect.Examples.PublishSubscribe.AnalyticsSubscriber.csproj' +$publisherProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.PublishSubscribe.Publisher/ServiceConnect.Examples.PublishSubscribe.Publisher.csproj' +$billingProcess = $null +$analyticsProcess = $null +$publisherJob = $null + +function Wait-ForSubscribersReady { + $timeout = 30 + $elapsed = 0 + $billingReady = $false + $analyticsReady = $false + + while ($elapsed -lt $timeout) { + if ((Test-Path $OUTPUT_LOG) -and (Select-String -Path $OUTPUT_LOG -Pattern "READY:billing-subscriber" -Quiet) -and -not $billingReady) { + $billingReady = $true + } + if ((Test-Path $OUTPUT_LOG) -and (Select-String -Path $OUTPUT_LOG -Pattern "READY:analytics-subscriber" -Quiet) -and -not $analyticsReady) { + $analyticsReady = $true + } + + if ($billingReady -and $analyticsReady) { + return $true + } + + Start-Sleep -Milliseconds 500 + $elapsed += 0.5 + } + + return $false +} + +function Wait-ForSubscriberSuccess { + $timeout = 30 + $elapsed = 0 + + while ($elapsed -lt $timeout) { + if ((Test-Path $OUTPUT_LOG) -and + (Select-String -Path $OUTPUT_LOG -Pattern 'SUCCESS:billing-subscriber:processed order-100' -Quiet) -and + (Select-String -Path $OUTPUT_LOG -Pattern 'SUCCESS:analytics-subscriber:processed order-100' -Quiet)) { + return $true + } + + Start-Sleep -Milliseconds 500 + $elapsed += 0.5 + } + + return $false +} + +$OUTPUT_LOG = Join-Path $PSScriptRoot "output.log" + +try { + Start-ExampleDependencies + "" | Set-Content -Path $OUTPUT_LOG + $billingProcess = Start-Process dotnet -ArgumentList @('run', '--project', $billingSubscriberProject) -PassThru -NoNewWindow -RedirectStandardOutput $OUTPUT_LOG -RedirectStandardError $OUTPUT_LOG + $analyticsProcess = Start-Process dotnet -ArgumentList @('run', '--project', $analyticsSubscriberProject) -PassThru -NoNewWindow -RedirectStandardOutput $OUTPUT_LOG -RedirectStandardError $OUTPUT_LOG -Append + + if (-not (Wait-ForSubscribersReady)) { + throw "Subscribers did not become ready within 30 seconds" + } + + $publisherJob = Start-Job -ScriptBlock { + dotnet run --project $using:publisherProject 2>&1 | Out-File -FilePath $using:OUTPUT_LOG -Append + } + + $publisherJob | Wait-Job | Remove-Job -Force + + if (-not (Wait-ForSubscriberSuccess)) { + throw 'Subscribers did not both process order-100 within 30 seconds' + } +} +finally { + if ($null -ne $billingProcess -and -not $billingProcess.HasExited) { + Stop-Process -Id $billingProcess.Id -Force -ErrorAction SilentlyContinue + $billingProcess.WaitForExit() + } + if ($null -ne $analyticsProcess -and -not $analyticsProcess.HasExited) { + Stop-Process -Id $analyticsProcess.Id -Force -ErrorAction SilentlyContinue + $analyticsProcess.WaitForExit() + } +} diff --git a/examples/PublishSubscribe/run.sh b/examples/PublishSubscribe/run.sh new file mode 100755 index 000000000..6feb45b58 --- /dev/null +++ b/examples/PublishSubscribe/run.sh @@ -0,0 +1,74 @@ +#!/usr/bin/env bash +set -euo pipefail + +SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)" +source "$SCRIPT_DIR/../scripts/common.sh" + +OUTPUT_LOG="$SCRIPT_DIR/output.log" +PIDS=() + +wait_for_ready() { + local timeout=30 + + for i in $(seq 1 $((timeout * 2))); do + if grep -q "READY:billing-subscriber" "$OUTPUT_LOG" && grep -q "READY:analytics-subscriber" "$OUTPUT_LOG"; then + return 0 + fi + sleep 0.5 + done + + return 1 +} + +wait_for_success() { + local timeout=30 + + for i in $(seq 1 $((timeout * 2))); do + if grep -q "SUCCESS:billing-subscriber:processed order-100" "$OUTPUT_LOG" && + grep -q "SUCCESS:analytics-subscriber:processed order-100" "$OUTPUT_LOG"; then + return 0 + fi + sleep 0.5 + done + + return 1 +} + +start_passive() { + dotnet run --no-build --project "$1" >> "$OUTPUT_LOG" 2>&1 & + PIDS+=("$!") +} + +start_dependencies +prebuild_solution "$SCRIPT_DIR/PublishSubscribe.sln" +> "$OUTPUT_LOG" +start_passive "$SCRIPT_DIR/src/ServiceConnect.Examples.PublishSubscribe.BillingSubscriber/ServiceConnect.Examples.PublishSubscribe.BillingSubscriber.csproj" +start_passive "$SCRIPT_DIR/src/ServiceConnect.Examples.PublishSubscribe.AnalyticsSubscriber/ServiceConnect.Examples.PublishSubscribe.AnalyticsSubscriber.csproj" + +if ! wait_for_ready; then + echo "ERROR: Subscribers did not become ready within 30 seconds" + for pid in "${PIDS[@]}"; do + kill "$pid" 2>/dev/null || true + done + exit 1 +fi + +dotnet run --no-build --project "$SCRIPT_DIR/src/ServiceConnect.Examples.PublishSubscribe.Publisher/ServiceConnect.Examples.PublishSubscribe.Publisher.csproj" & +PUBLISHER_PID=$! +PIDS+=("$PUBLISHER_PID") +wait "$PUBLISHER_PID" + +if ! wait_for_success; then + echo "ERROR: Subscribers did not both process order-100 within 30 seconds" + for pid in "${PIDS[@]}"; do + kill "$pid" 2>/dev/null || true + done + exit 1 +fi + +for pid in "${PIDS[@]}"; do + kill "$pid" 2>/dev/null || true +done +for pid in "${PIDS[@]}"; do + wait "$pid" 2>/dev/null || true +done diff --git a/examples/PublishSubscribe/src/ServiceConnect.Examples.PublishSubscribe.AnalyticsSubscriber/OrderPlacedHandler.cs b/examples/PublishSubscribe/src/ServiceConnect.Examples.PublishSubscribe.AnalyticsSubscriber/OrderPlacedHandler.cs new file mode 100644 index 000000000..4b48bf9b4 --- /dev/null +++ b/examples/PublishSubscribe/src/ServiceConnect.Examples.PublishSubscribe.AnalyticsSubscriber/OrderPlacedHandler.cs @@ -0,0 +1,14 @@ +using ServiceConnect.Examples.PublishSubscribe.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.PublishSubscribe.AnalyticsSubscriber; + +public sealed class OrderPlacedHandler : IMessageHandler +{ + public Task HandleAsync(OrderPlaced message, IConsumeContext context, CancellationToken cancellationToken = default) + { + ConsoleStatus.Success("analytics-subscriber", $"processed {message.OrderId}"); + return Task.CompletedTask; + } +} diff --git a/examples/PublishSubscribe/src/ServiceConnect.Examples.PublishSubscribe.AnalyticsSubscriber/Program.cs b/examples/PublishSubscribe/src/ServiceConnect.Examples.PublishSubscribe.AnalyticsSubscriber/Program.cs new file mode 100644 index 000000000..b9c82d0c1 --- /dev/null +++ b/examples/PublishSubscribe/src/ServiceConnect.Examples.PublishSubscribe.AnalyticsSubscriber/Program.cs @@ -0,0 +1,30 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.PublishSubscribe.AnalyticsSubscriber; +using ServiceConnect.Examples.PublishSubscribe.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Interfaces; + +var settings = ExampleSettingsLoader.Load(); +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +var handlerReferences = new List +{ + new() { HandlerType = typeof(OrderPlacedHandler), MessageType = typeof(OrderPlaced) } +}; + +var services = new ServiceCollection(); +services.AddSingleton>(handlerReferences); +services.AddTransient, OrderPlacedHandler>(); +services.AddExampleBus(settings, "analytics-subscriber"); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); +await bus.StartConsumingAsync(); +ConsoleStatus.Ready("analytics-subscriber"); +await Task.Delay(Timeout.InfiniteTimeSpan); diff --git a/examples/PublishSubscribe/src/ServiceConnect.Examples.PublishSubscribe.AnalyticsSubscriber/ServiceConnect.Examples.PublishSubscribe.AnalyticsSubscriber.csproj b/examples/PublishSubscribe/src/ServiceConnect.Examples.PublishSubscribe.AnalyticsSubscriber/ServiceConnect.Examples.PublishSubscribe.AnalyticsSubscriber.csproj new file mode 100644 index 000000000..573ff35d8 --- /dev/null +++ b/examples/PublishSubscribe/src/ServiceConnect.Examples.PublishSubscribe.AnalyticsSubscriber/ServiceConnect.Examples.PublishSubscribe.AnalyticsSubscriber.csproj @@ -0,0 +1,10 @@ + + + Exe + + + + + + + diff --git a/examples/PublishSubscribe/src/ServiceConnect.Examples.PublishSubscribe.BillingSubscriber/OrderPlacedHandler.cs b/examples/PublishSubscribe/src/ServiceConnect.Examples.PublishSubscribe.BillingSubscriber/OrderPlacedHandler.cs new file mode 100644 index 000000000..0f6ccbf00 --- /dev/null +++ b/examples/PublishSubscribe/src/ServiceConnect.Examples.PublishSubscribe.BillingSubscriber/OrderPlacedHandler.cs @@ -0,0 +1,14 @@ +using ServiceConnect.Examples.PublishSubscribe.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.PublishSubscribe.BillingSubscriber; + +public sealed class OrderPlacedHandler : IMessageHandler +{ + public Task HandleAsync(OrderPlaced message, IConsumeContext context, CancellationToken cancellationToken = default) + { + ConsoleStatus.Success("billing-subscriber", $"processed {message.OrderId}"); + return Task.CompletedTask; + } +} diff --git a/examples/PublishSubscribe/src/ServiceConnect.Examples.PublishSubscribe.BillingSubscriber/Program.cs b/examples/PublishSubscribe/src/ServiceConnect.Examples.PublishSubscribe.BillingSubscriber/Program.cs new file mode 100644 index 000000000..66fc4a256 --- /dev/null +++ b/examples/PublishSubscribe/src/ServiceConnect.Examples.PublishSubscribe.BillingSubscriber/Program.cs @@ -0,0 +1,30 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.PublishSubscribe.BillingSubscriber; +using ServiceConnect.Examples.PublishSubscribe.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Interfaces; + +var settings = ExampleSettingsLoader.Load(); +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +var handlerReferences = new List +{ + new() { HandlerType = typeof(OrderPlacedHandler), MessageType = typeof(OrderPlaced) } +}; + +var services = new ServiceCollection(); +services.AddSingleton>(handlerReferences); +services.AddTransient, OrderPlacedHandler>(); +services.AddExampleBus(settings, "billing-subscriber"); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); +await bus.StartConsumingAsync(); +ConsoleStatus.Ready("billing-subscriber"); +await Task.Delay(Timeout.InfiniteTimeSpan); diff --git a/examples/PublishSubscribe/src/ServiceConnect.Examples.PublishSubscribe.BillingSubscriber/ServiceConnect.Examples.PublishSubscribe.BillingSubscriber.csproj b/examples/PublishSubscribe/src/ServiceConnect.Examples.PublishSubscribe.BillingSubscriber/ServiceConnect.Examples.PublishSubscribe.BillingSubscriber.csproj new file mode 100644 index 000000000..573ff35d8 --- /dev/null +++ b/examples/PublishSubscribe/src/ServiceConnect.Examples.PublishSubscribe.BillingSubscriber/ServiceConnect.Examples.PublishSubscribe.BillingSubscriber.csproj @@ -0,0 +1,10 @@ + + + Exe + + + + + + + diff --git a/examples/PublishSubscribe/src/ServiceConnect.Examples.PublishSubscribe.Contracts/OrderPlaced.cs b/examples/PublishSubscribe/src/ServiceConnect.Examples.PublishSubscribe.Contracts/OrderPlaced.cs new file mode 100644 index 000000000..114f82dd0 --- /dev/null +++ b/examples/PublishSubscribe/src/ServiceConnect.Examples.PublishSubscribe.Contracts/OrderPlaced.cs @@ -0,0 +1,8 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.PublishSubscribe.Contracts; + +public sealed class OrderPlaced(Guid correlationId) : Message(correlationId) +{ + public string OrderId { get; init; } = string.Empty; +} diff --git a/examples/PublishSubscribe/src/ServiceConnect.Examples.PublishSubscribe.Contracts/ServiceConnect.Examples.PublishSubscribe.Contracts.csproj b/examples/PublishSubscribe/src/ServiceConnect.Examples.PublishSubscribe.Contracts/ServiceConnect.Examples.PublishSubscribe.Contracts.csproj new file mode 100644 index 000000000..02cd0ca30 --- /dev/null +++ b/examples/PublishSubscribe/src/ServiceConnect.Examples.PublishSubscribe.Contracts/ServiceConnect.Examples.PublishSubscribe.Contracts.csproj @@ -0,0 +1,5 @@ + + + + + diff --git a/examples/PublishSubscribe/src/ServiceConnect.Examples.PublishSubscribe.Publisher/Program.cs b/examples/PublishSubscribe/src/ServiceConnect.Examples.PublishSubscribe.Publisher/Program.cs new file mode 100644 index 000000000..cff2f4b19 --- /dev/null +++ b/examples/PublishSubscribe/src/ServiceConnect.Examples.PublishSubscribe.Publisher/Program.cs @@ -0,0 +1,22 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.PublishSubscribe.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Interfaces; + +var settings = ExampleSettingsLoader.Load(); +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +var services = new ServiceCollection(); +services.AddSingleton>([]); +services.AddExampleBus(settings, "publish-subscribe-publisher"); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); +await bus.PublishAsync(new OrderPlaced(Guid.NewGuid()) { OrderId = "order-100" }); +ConsoleStatus.Success("publish-subscribe-publisher", "published order-100"); diff --git a/examples/PublishSubscribe/src/ServiceConnect.Examples.PublishSubscribe.Publisher/ServiceConnect.Examples.PublishSubscribe.Publisher.csproj b/examples/PublishSubscribe/src/ServiceConnect.Examples.PublishSubscribe.Publisher/ServiceConnect.Examples.PublishSubscribe.Publisher.csproj new file mode 100644 index 000000000..573ff35d8 --- /dev/null +++ b/examples/PublishSubscribe/src/ServiceConnect.Examples.PublishSubscribe.Publisher/ServiceConnect.Examples.PublishSubscribe.Publisher.csproj @@ -0,0 +1,10 @@ + + + Exe + + + + + + + diff --git a/examples/README.md b/examples/README.md new file mode 100644 index 000000000..2732c2ad1 --- /dev/null +++ b/examples/README.md @@ -0,0 +1,30 @@ +# ServiceConnect Examples + +This area contains runnable console applications for the supported messaging and workflow patterns in ServiceConnect. + +## Patterns + +`PointToPoint`, `PublishSubscribe`, `RequestReply`, `CompetingConsumers`, `ContentBasedRouting`, `RoutingSlip`, `ScatterGather`, `Aggregator`, `ProcessManager`, `Filters`, `CustomFilterAndMiddleware`, and `Streaming` are implemented and runnable now. + +`CustomFilterAndMiddleware` shows how to build a custom filter (using the `BeforeConsuming` + `OnConsumedSuccessfully` pipeline stages) and a custom `IMessageProcessingMiddleware`. Worked scenario: broker-redelivery deduplication. + +- [PointToPoint](./PointToPoint/) +- [PublishSubscribe](./PublishSubscribe/) +- [RequestReply](./RequestReply/) +- [CompetingConsumers](./CompetingConsumers/) +- [ContentBasedRouting](./ContentBasedRouting/) +- [RoutingSlip](./RoutingSlip/) +- [ScatterGather](./ScatterGather/) +- [Aggregator](./Aggregator/) +- [ProcessManager](./ProcessManager/) +- [Filters](./Filters/) +- [CustomFilterAndMiddleware](./CustomFilterAndMiddleware/) +- [Streaming](./Streaming/) + +## Shared Dependencies + +Shared dependencies are documented here ahead of the runnable examples. From the repository root, start RabbitMQ and MongoDB with: + +```bash +docker compose -f examples/docker-compose.yml up -d +``` diff --git a/examples/RequestReply/README.md b/examples/RequestReply/README.md new file mode 100644 index 000000000..241d854dd --- /dev/null +++ b/examples/RequestReply/README.md @@ -0,0 +1,59 @@ +# RequestReply + +## Overview + +Send a request message to a responder and wait for a reply. The requester uses `SendRequestAsync` with a timeout, and the responder uses `context.ReplyAsync` to send the reply back. + +## Participants + +- `ServiceConnect.Examples.RequestReply.Requester` +- `ServiceConnect.Examples.RequestReply.Responder` + +## Message Flow + +```mermaid +sequenceDiagram + participant Requester + participant Responder + Requester->>Responder: QuoteRequest(product-123) + Responder-->>Requester: QuoteResponse(42.50) +``` + +## Prerequisites + +`docker compose -f ../docker-compose.yml up -d` + +## Run This Example + +`bash run.sh` + +## Run Manually + +Run the responder first, then the requester. + +`dotnet run --project src/ServiceConnect.Examples.RequestReply.Responder/ServiceConnect.Examples.RequestReply.Responder.csproj` + +`dotnet run --project src/ServiceConnect.Examples.RequestReply.Requester/ServiceConnect.Examples.RequestReply.Requester.csproj` + +## Expected Output + +`READY:request-reply-responder` + +`SUCCESS:request-reply-requester:received price 42.50` + +`SUCCESS:request-reply-responder:processed product-123` + +## What To Notice + +The requester sends a `QuoteRequest` and waits up to 30 seconds for a `QuoteResponse`. The responder receives the request and uses `context.ReplyAsync` to send the reply back, which the request/reply manager correlates to the original request. + +## Contracts + +**Handler signature.** Handlers receive the per-message `IConsumeContext` as a parameter to `HandleAsync` — safe under singleton-registered handlers because nothing about the dispatch is shared via instance state. + +```csharp +public async Task HandleAsync(QuoteRequest message, IConsumeContext context, CancellationToken cancellationToken = default) +{ + await context.ReplyAsync(new QuoteResponse(message.CorrelationId) { Price = 42.50m }); +} +``` diff --git a/examples/RequestReply/RequestReply.sln b/examples/RequestReply/RequestReply.sln new file mode 100644 index 000000000..7b21b4e72 --- /dev/null +++ b/examples/RequestReply/RequestReply.sln @@ -0,0 +1,69 @@ + +Microsoft Visual Studio Solution File, Format Version 12.00 +# Visual Studio Version 17 +VisualStudioVersion = 17.0.31903.59 +MinimumVisualStudioVersion = 10.0.40219.1 +Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{827E0CD3-B72D-47B6-A68D-7590B98EB39B}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect.Examples.RequestReply.Contracts", "src\ServiceConnect.Examples.RequestReply.Contracts\ServiceConnect.Examples.RequestReply.Contracts.csproj", "{A1B2C3D4-E5F6-7890-ABCD-EF1234567890}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect.Examples.RequestReply.Requester", "src\ServiceConnect.Examples.RequestReply.Requester\ServiceConnect.Examples.RequestReply.Requester.csproj", "{B2C3D4E5-F6A7-8901-BCDE-F12345678901}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect.Examples.RequestReply.Responder", "src\ServiceConnect.Examples.RequestReply.Responder\ServiceConnect.Examples.RequestReply.Responder.csproj", "{C3D4E5F6-A7B8-9012-CDEF-123456789012}" +EndProject +Global + GlobalSection(SolutionConfigurationPlatforms) = preSolution + Debug|Any CPU = Debug|Any CPU + Debug|x64 = Debug|x64 + Debug|x86 = Debug|x86 + Release|Any CPU = Release|Any CPU + Release|x64 = Release|x64 + Release|x86 = Release|x86 + EndGlobalSection + GlobalSection(ProjectConfigurationPlatforms) = postSolution + {A1B2C3D4-E5F6-7890-ABCD-EF1234567890}.Debug|Any CPU.ActiveCfg = Debug|Any CPU + {A1B2C3D4-E5F6-7890-ABCD-EF1234567890}.Debug|Any CPU.Build.0 = Debug|Any CPU + {A1B2C3D4-E5F6-7890-ABCD-EF1234567890}.Debug|x64.ActiveCfg = Debug|Any CPU + {A1B2C3D4-E5F6-7890-ABCD-EF1234567890}.Debug|x64.Build.0 = Debug|Any CPU + {A1B2C3D4-E5F6-7890-ABCD-EF1234567890}.Debug|x86.ActiveCfg = Debug|Any CPU + {A1B2C3D4-E5F6-7890-ABCD-EF1234567890}.Debug|x86.Build.0 = Debug|Any CPU + {A1B2C3D4-E5F6-7890-ABCD-EF1234567890}.Release|Any CPU.ActiveCfg = Release|Any CPU + {A1B2C3D4-E5F6-7890-ABCD-EF1234567890}.Release|Any CPU.Build.0 = Release|Any CPU + {A1B2C3D4-E5F6-7890-ABCD-EF1234567890}.Release|x64.ActiveCfg = Release|Any CPU + {A1B2C3D4-E5F6-7890-ABCD-EF1234567890}.Release|x64.Build.0 = Release|Any CPU + {A1B2C3D4-E5F6-7890-ABCD-EF1234567890}.Release|x86.ActiveCfg = Release|Any CPU + {A1B2C3D4-E5F6-7890-ABCD-EF1234567890}.Release|x86.Build.0 = Release|Any CPU + {B2C3D4E5-F6A7-8901-BCDE-F12345678901}.Debug|Any CPU.ActiveCfg = Debug|Any CPU + {B2C3D4E5-F6A7-8901-BCDE-F12345678901}.Debug|Any CPU.Build.0 = Debug|Any CPU + {B2C3D4E5-F6A7-8901-BCDE-F12345678901}.Debug|x64.ActiveCfg = Debug|Any CPU + {B2C3D4E5-F6A7-8901-BCDE-F12345678901}.Debug|x64.Build.0 = Debug|Any CPU + {B2C3D4E5-F6A7-8901-BCDE-F12345678901}.Debug|x86.ActiveCfg = Debug|Any CPU + {B2C3D4E5-F6A7-8901-BCDE-F12345678901}.Debug|x86.Build.0 = Debug|Any CPU + {B2C3D4E5-F6A7-8901-BCDE-F12345678901}.Release|Any CPU.ActiveCfg = Release|Any CPU + {B2C3D4E5-F6A7-8901-BCDE-F12345678901}.Release|Any CPU.Build.0 = Release|Any CPU + {B2C3D4E5-F6A7-8901-BCDE-F12345678901}.Release|x64.ActiveCfg = Release|Any CPU + {B2C3D4E5-F6A7-8901-BCDE-F12345678901}.Release|x64.Build.0 = Release|Any CPU + {B2C3D4E5-F6A7-8901-BCDE-F12345678901}.Release|x86.ActiveCfg = Release|Any CPU + {B2C3D4E5-F6A7-8901-BCDE-F12345678901}.Release|x86.Build.0 = Release|Any CPU + {C3D4E5F6-A7B8-9012-CDEF-123456789012}.Debug|Any CPU.ActiveCfg = Debug|Any CPU + {C3D4E5F6-A7B8-9012-CDEF-123456789012}.Debug|Any CPU.Build.0 = Debug|Any CPU + {C3D4E5F6-A7B8-9012-CDEF-123456789012}.Debug|x64.ActiveCfg = Debug|Any CPU + {C3D4E5F6-A7B8-9012-CDEF-123456789012}.Debug|x64.Build.0 = Debug|Any CPU + {C3D4E5F6-A7B8-9012-CDEF-123456789012}.Debug|x86.ActiveCfg = Debug|Any CPU + {C3D4E5F6-A7B8-9012-CDEF-123456789012}.Debug|x86.Build.0 = Debug|Any CPU + {C3D4E5F6-A7B8-9012-CDEF-123456789012}.Release|Any CPU.ActiveCfg = Release|Any CPU + {C3D4E5F6-A7B8-9012-CDEF-123456789012}.Release|Any CPU.Build.0 = Release|Any CPU + {C3D4E5F6-A7B8-9012-CDEF-123456789012}.Release|x64.ActiveCfg = Release|Any CPU + {C3D4E5F6-A7B8-9012-CDEF-123456789012}.Release|x64.Build.0 = Release|Any CPU + {C3D4E5F6-A7B8-9012-CDEF-123456789012}.Release|x86.ActiveCfg = Release|Any CPU + {C3D4E5F6-A7B8-9012-CDEF-123456789012}.Release|x86.Build.0 = Release|Any CPU + EndGlobalSection + GlobalSection(SolutionProperties) = preSolution + HideSolutionNode = FALSE + EndGlobalSection + GlobalSection(NestedProjects) = preSolution + {A1B2C3D4-E5F6-7890-ABCD-EF1234567890} = {827E0CD3-B72D-47B6-A68D-7590B98EB39B} + {B2C3D4E5-F6A7-8901-BCDE-F12345678901} = {827E0CD3-B72D-47B6-A68D-7590B98EB39B} + {C3D4E5F6-A7B8-9012-CDEF-123456789012} = {827E0CD3-B72D-47B6-A68D-7590B98EB39B} + EndGlobalSection +EndGlobal \ No newline at end of file diff --git a/examples/RequestReply/run.ps1 b/examples/RequestReply/run.ps1 new file mode 100644 index 000000000..4740524ff --- /dev/null +++ b/examples/RequestReply/run.ps1 @@ -0,0 +1,49 @@ +$ErrorActionPreference = 'Stop' +$PSNativeCommandUseErrorActionPreference = $true + +. "$PSScriptRoot/../scripts/common.ps1" + +$responderProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.RequestReply.Responder/ServiceConnect.Examples.RequestReply.Responder.csproj' +$requesterProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.RequestReply.Requester/ServiceConnect.Examples.RequestReply.Requester.csproj' +$responderProcess = $null +$requesterJob = $null + +function Wait-ForResponderReady { + $timeout = 30 + $elapsed = 0 + + while ($elapsed -lt $timeout) { + if ((Test-Path $OUTPUT_LOG) -and (Select-String -Path $OUTPUT_LOG -Pattern "READY:request-reply-responder" -Quiet)) { + return $true + } + + Start-Sleep -Milliseconds 500 + $elapsed += 0.5 + } + + return $false +} + +$OUTPUT_LOG = Join-Path $PSScriptRoot "output.log" + +try { + Start-ExampleDependencies + "" | Set-Content -Path $OUTPUT_LOG + $responderProcess = Start-Process dotnet -ArgumentList @('run', '--project', $responderProject) -PassThru -NoNewWindow -RedirectStandardOutput $OUTPUT_LOG -RedirectStandardError $OUTPUT_LOG + + if (-not (Wait-ForResponderReady)) { + throw "Responder did not become ready within 30 seconds" + } + + $requesterJob = Start-Job -ScriptBlock { + dotnet run --project $using:requesterProject 2>&1 | Out-File -FilePath $using:OUTPUT_LOG -Append + } + + $requesterJob | Wait-Job | Remove-Job -Force +} +finally { + if ($null -ne $responderProcess -and -not $responderProcess.HasExited) { + Stop-Process -Id $responderProcess.Id -Force -ErrorAction SilentlyContinue + $responderProcess.WaitForExit() + } +} \ No newline at end of file diff --git a/examples/RequestReply/run.sh b/examples/RequestReply/run.sh new file mode 100755 index 000000000..35252bcbd --- /dev/null +++ b/examples/RequestReply/run.sh @@ -0,0 +1,51 @@ +#!/usr/bin/env bash +set -euo pipefail + +SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)" +source "$SCRIPT_DIR/../scripts/common.sh" + +OUTPUT_LOG="$SCRIPT_DIR/output.log" +PIDS=() + +wait_for_ready() { + local timeout=30 + + for i in $(seq 1 $((timeout * 2))); do + if grep -q "READY:request-reply-responder" "$OUTPUT_LOG"; then + return 0 + fi + sleep 0.5 + done + + return 1 +} + +start_passive() { + dotnet run --no-build --project "$1" >> "$OUTPUT_LOG" 2>&1 & + PIDS+=("$!") +} + +start_dependencies +prebuild_solution "$SCRIPT_DIR/RequestReply.sln" +> "$OUTPUT_LOG" +start_passive "$SCRIPT_DIR/src/ServiceConnect.Examples.RequestReply.Responder/ServiceConnect.Examples.RequestReply.Responder.csproj" + +if ! wait_for_ready; then + echo "ERROR: Responder did not become ready within 30 seconds" + for pid in "${PIDS[@]}"; do + kill "$pid" 2>/dev/null || true + done + exit 1 +fi + +dotnet run --no-build --project "$SCRIPT_DIR/src/ServiceConnect.Examples.RequestReply.Requester/ServiceConnect.Examples.RequestReply.Requester.csproj" >> "$OUTPUT_LOG" 2>&1 & +REQUESTER_PID=$! +PIDS+=("$REQUESTER_PID") +wait "$REQUESTER_PID" + +for pid in "${PIDS[@]}"; do + kill "$pid" 2>/dev/null || true +done +for pid in "${PIDS[@]}"; do + wait "$pid" 2>/dev/null || true +done \ No newline at end of file diff --git a/examples/RequestReply/src/ServiceConnect.Examples.RequestReply.Contracts/QuoteRequest.cs b/examples/RequestReply/src/ServiceConnect.Examples.RequestReply.Contracts/QuoteRequest.cs new file mode 100644 index 000000000..baa0e6cab --- /dev/null +++ b/examples/RequestReply/src/ServiceConnect.Examples.RequestReply.Contracts/QuoteRequest.cs @@ -0,0 +1,8 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.RequestReply.Contracts; + +public sealed class QuoteRequest(Guid correlationId) : Message(correlationId) +{ + public string ProductCode { get; init; } = string.Empty; +} diff --git a/examples/RequestReply/src/ServiceConnect.Examples.RequestReply.Contracts/QuoteResponse.cs b/examples/RequestReply/src/ServiceConnect.Examples.RequestReply.Contracts/QuoteResponse.cs new file mode 100644 index 000000000..b96826879 --- /dev/null +++ b/examples/RequestReply/src/ServiceConnect.Examples.RequestReply.Contracts/QuoteResponse.cs @@ -0,0 +1,8 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.RequestReply.Contracts; + +public sealed class QuoteResponse(Guid correlationId) : Message(correlationId) +{ + public decimal Price { get; init; } +} diff --git a/examples/RequestReply/src/ServiceConnect.Examples.RequestReply.Contracts/ServiceConnect.Examples.RequestReply.Contracts.csproj b/examples/RequestReply/src/ServiceConnect.Examples.RequestReply.Contracts/ServiceConnect.Examples.RequestReply.Contracts.csproj new file mode 100644 index 000000000..e25ce6822 --- /dev/null +++ b/examples/RequestReply/src/ServiceConnect.Examples.RequestReply.Contracts/ServiceConnect.Examples.RequestReply.Contracts.csproj @@ -0,0 +1,5 @@ + + + + + \ No newline at end of file diff --git a/examples/RequestReply/src/ServiceConnect.Examples.RequestReply.Requester/Program.cs b/examples/RequestReply/src/ServiceConnect.Examples.RequestReply.Requester/Program.cs new file mode 100644 index 000000000..3ff2e199f --- /dev/null +++ b/examples/RequestReply/src/ServiceConnect.Examples.RequestReply.Requester/Program.cs @@ -0,0 +1,31 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.RequestReply.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; + +var settings = ExampleSettingsLoader.Load(); +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +var services = new ServiceCollection(); +services.AddSingleton>([]); +services.AddExampleBus(settings, "request-reply-requester"); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); +await bus.StartConsumingAsync(); +await Task.Delay(1000); + +var request = new QuoteRequest(Guid.NewGuid()) { ProductCode = "product-123" }; +var response = await bus.SendRequestAsync( + request, + new RequestOptions { EndPoint = "request-reply-responder", Timeout = 30000 }); + +ConsoleStatus.Success("request-reply-requester", $"received price {response.Price}"); +await Console.Out.FlushAsync(); diff --git a/examples/RequestReply/src/ServiceConnect.Examples.RequestReply.Requester/ServiceConnect.Examples.RequestReply.Requester.csproj b/examples/RequestReply/src/ServiceConnect.Examples.RequestReply.Requester/ServiceConnect.Examples.RequestReply.Requester.csproj new file mode 100644 index 000000000..5ab9f76e5 --- /dev/null +++ b/examples/RequestReply/src/ServiceConnect.Examples.RequestReply.Requester/ServiceConnect.Examples.RequestReply.Requester.csproj @@ -0,0 +1,10 @@ + + + Exe + + + + + + + \ No newline at end of file diff --git a/examples/RequestReply/src/ServiceConnect.Examples.RequestReply.Responder/Program.cs b/examples/RequestReply/src/ServiceConnect.Examples.RequestReply.Responder/Program.cs new file mode 100644 index 000000000..bbe7a1270 --- /dev/null +++ b/examples/RequestReply/src/ServiceConnect.Examples.RequestReply.Responder/Program.cs @@ -0,0 +1,30 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.RequestReply.Contracts; +using ServiceConnect.Examples.RequestReply.Responder; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Interfaces; + +var settings = ExampleSettingsLoader.Load(); +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +var handlerReferences = new List +{ + new() { HandlerType = typeof(QuoteRequestHandler), MessageType = typeof(QuoteRequest) } +}; + +var services = new ServiceCollection(); +services.AddSingleton>(handlerReferences); +services.AddTransient, QuoteRequestHandler>(); +services.AddExampleBus(settings, "request-reply-responder"); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); +await bus.StartConsumingAsync(); +ConsoleStatus.Ready("request-reply-responder"); +await Task.Delay(Timeout.InfiniteTimeSpan); diff --git a/examples/RequestReply/src/ServiceConnect.Examples.RequestReply.Responder/QuoteRequestHandler.cs b/examples/RequestReply/src/ServiceConnect.Examples.RequestReply.Responder/QuoteRequestHandler.cs new file mode 100644 index 000000000..268b826d6 --- /dev/null +++ b/examples/RequestReply/src/ServiceConnect.Examples.RequestReply.Responder/QuoteRequestHandler.cs @@ -0,0 +1,14 @@ +using ServiceConnect.Examples.RequestReply.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.RequestReply.Responder; + +public sealed class QuoteRequestHandler : IMessageHandler +{ + public async Task HandleAsync(QuoteRequest message, IConsumeContext context, CancellationToken cancellationToken = default) + { + await context.ReplyAsync(new QuoteResponse(message.CorrelationId) { Price = 42.50m }); + ConsoleStatus.Success("request-reply-responder", $"processed {message.ProductCode}"); + } +} diff --git a/examples/RequestReply/src/ServiceConnect.Examples.RequestReply.Responder/ServiceConnect.Examples.RequestReply.Responder.csproj b/examples/RequestReply/src/ServiceConnect.Examples.RequestReply.Responder/ServiceConnect.Examples.RequestReply.Responder.csproj new file mode 100644 index 000000000..5ab9f76e5 --- /dev/null +++ b/examples/RequestReply/src/ServiceConnect.Examples.RequestReply.Responder/ServiceConnect.Examples.RequestReply.Responder.csproj @@ -0,0 +1,10 @@ + + + Exe + + + + + + + \ No newline at end of file diff --git a/examples/RoutingSlip/README.md b/examples/RoutingSlip/README.md new file mode 100644 index 000000000..b7863b6da --- /dev/null +++ b/examples/RoutingSlip/README.md @@ -0,0 +1,74 @@ +# RoutingSlip + +## Overview + +Route one message through three ordered processing steps. The starter sends a single `RoutingSlipOrder` with a routing slip, and ServiceConnect forwards that same message from inventory to billing to shipping after each handler completes. + +## Participants + +- `ServiceConnect.Examples.RoutingSlip.Starter` +- `ServiceConnect.Examples.RoutingSlip.InventoryStep` +- `ServiceConnect.Examples.RoutingSlip.BillingStep` +- `ServiceConnect.Examples.RoutingSlip.ShippingStep` + +## Message Flow + +```mermaid +sequenceDiagram + participant Starter + participant InventoryStep + participant BillingStep + participant ShippingStep + Starter->>InventoryStep: RoutingSlipOrder(order-, InventoryStep) + InventoryStep->>BillingStep: RoutingSlipOrder(order-, BillingStep) + BillingStep->>ShippingStep: RoutingSlipOrder(order-, ShippingStep) +``` + +## Prerequisites + +`docker compose -f ../docker-compose.yml up -d` + +## Run This Example + +`bash run.sh` + +The scripted runners use unique queue names for each run so old messages do not interfere with the current routing-slip flow. + +## Run Manually + +Start the three step consumers first, then run the starter with the same queue names. + +```bash +SC_EXAMPLES_INVENTORY_QUEUE_NAME=routing-slip-inventory SC_EXAMPLES_BILLING_QUEUE_NAME=routing-slip-billing SC_EXAMPLES_SHIPPING_QUEUE_NAME=routing-slip-shipping dotnet run --project src/ServiceConnect.Examples.RoutingSlip.InventoryStep/ServiceConnect.Examples.RoutingSlip.InventoryStep.csproj & +SC_EXAMPLES_INVENTORY_QUEUE_NAME=routing-slip-inventory SC_EXAMPLES_BILLING_QUEUE_NAME=routing-slip-billing SC_EXAMPLES_SHIPPING_QUEUE_NAME=routing-slip-shipping dotnet run --project src/ServiceConnect.Examples.RoutingSlip.BillingStep/ServiceConnect.Examples.RoutingSlip.BillingStep.csproj & +SC_EXAMPLES_INVENTORY_QUEUE_NAME=routing-slip-inventory SC_EXAMPLES_BILLING_QUEUE_NAME=routing-slip-billing SC_EXAMPLES_SHIPPING_QUEUE_NAME=routing-slip-shipping dotnet run --project src/ServiceConnect.Examples.RoutingSlip.ShippingStep/ServiceConnect.Examples.RoutingSlip.ShippingStep.csproj & +SC_EXAMPLES_INVENTORY_QUEUE_NAME=routing-slip-inventory SC_EXAMPLES_BILLING_QUEUE_NAME=routing-slip-billing SC_EXAMPLES_SHIPPING_QUEUE_NAME=routing-slip-shipping SC_EXAMPLES_ORDER_ID=order-001 dotnet run --project src/ServiceConnect.Examples.RoutingSlip.Starter/ServiceConnect.Examples.RoutingSlip.Starter.csproj +``` + +## Expected Output + +`READY:inventory-step` + +`READY:billing-step` + +`READY:shipping-step` + +`SUCCESS:routing-slip-starter:routed order-` + +`SUCCESS:inventory-step:processed order- at InventoryStep` + +`SUCCESS:billing-step:processed order- at BillingStep` + +`SUCCESS:shipping-step:processed order- at ShippingStep` + +The three `SUCCESS` lines from the processing steps arrive asynchronously, but the route order remains inventory, then billing, then shipping. + +## What To Notice + +The starter only names the ordered queue list once in `RouteAsync`. Each handler updates `CurrentStep`, then ServiceConnect reads the remaining routing-slip destinations from the message headers and forwards the message automatically to the next queue. + +## Contracts + +**Cross-service routing.** Slip destinations are not required to appear in the local `IQueueConfiguration`. Format validation (non-empty, length-bounded, no AMQP control characters) is all that is required. RabbitMQ's alternate-exchange or mandatory-return is the appropriate surface for catching genuinely unknown destinations. + +**Slip behavior on handler throw.** When a handler throws, the in-flight slip-forward is skipped; the slip data remains in the message envelope's `RoutingSlip` header. Messages that land on the DLQ — or are replayed manually — can still resume the chain from the current step without losing the remaining destination list. diff --git a/examples/RoutingSlip/RoutingSlip.sln b/examples/RoutingSlip/RoutingSlip.sln new file mode 100644 index 000000000..ac3f73abc --- /dev/null +++ b/examples/RoutingSlip/RoutingSlip.sln @@ -0,0 +1,98 @@ +Microsoft Visual Studio Solution File, Format Version 12.00 +# Visual Studio Version 17 +VisualStudioVersion = 17.0.31903.59 +MinimumVisualStudioVersion = 10.0.40219.1 +Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{827E0CD3-B72D-47B6-A68D-7590B98EB39B}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect.Examples.RoutingSlip.Contracts", "src\ServiceConnect.Examples.RoutingSlip.Contracts\ServiceConnect.Examples.RoutingSlip.Contracts.csproj", "{C7B10331-35D2-4E3E-9A63-9706D5800001}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect.Examples.RoutingSlip.Starter", "src\ServiceConnect.Examples.RoutingSlip.Starter\ServiceConnect.Examples.RoutingSlip.Starter.csproj", "{C7B10331-35D2-4E3E-9A63-9706D5800002}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect.Examples.RoutingSlip.InventoryStep", "src\ServiceConnect.Examples.RoutingSlip.InventoryStep\ServiceConnect.Examples.RoutingSlip.InventoryStep.csproj", "{C7B10331-35D2-4E3E-9A63-9706D5800003}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect.Examples.RoutingSlip.BillingStep", "src\ServiceConnect.Examples.RoutingSlip.BillingStep\ServiceConnect.Examples.RoutingSlip.BillingStep.csproj", "{C7B10331-35D2-4E3E-9A63-9706D5800004}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect.Examples.RoutingSlip.ShippingStep", "src\ServiceConnect.Examples.RoutingSlip.ShippingStep\ServiceConnect.Examples.RoutingSlip.ShippingStep.csproj", "{C7B10331-35D2-4E3E-9A63-9706D5800005}" 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mode 100644 index 000000000..49990dd00 --- /dev/null +++ b/examples/RoutingSlip/run.ps1 @@ -0,0 +1,195 @@ +$ErrorActionPreference = 'Stop' +$PSNativeCommandUseErrorActionPreference = $true + +. "$PSScriptRoot/../scripts/common.ps1" + +$inventoryProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.RoutingSlip.InventoryStep/ServiceConnect.Examples.RoutingSlip.InventoryStep.csproj' +$billingProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.RoutingSlip.BillingStep/ServiceConnect.Examples.RoutingSlip.BillingStep.csproj' +$shippingProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.RoutingSlip.ShippingStep/ServiceConnect.Examples.RoutingSlip.ShippingStep.csproj' +$starterProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.RoutingSlip.Starter/ServiceConnect.Examples.RoutingSlip.Starter.csproj' +$OUTPUT_LOG = Join-Path $PSScriptRoot 'output.log' +$RunId = [DateTimeOffset]::UtcNow.ToUnixTimeMilliseconds() +$OrderId = "routing-slip-order-$RunId" +$InventoryQueueName = "routing-slip-inventory-$RunId" +$BillingQueueName = "routing-slip-billing-$RunId" +$ShippingQueueName = "routing-slip-shipping-$RunId" +$LogLock = New-Object object + +$inventoryProcess = $null +$billingProcess = $null +$shippingProcess = $null +$starterProcess = $null + +function Write-LogLine { + param([string]$Line) + + if ($null -eq $Line) { + return + } + + [System.Threading.Monitor]::Enter($LogLock) + try { + [System.IO.File]::AppendAllText($OUTPUT_LOG, $Line + [Environment]::NewLine) + } + finally { + [System.Threading.Monitor]::Exit($LogLock) + } +} + +function Start-LoggedProcess { + param( + [string]$ProjectPath, + [hashtable]$EnvironmentVariables + ) + + $startInfo = [System.Diagnostics.ProcessStartInfo]::new() + $startInfo.FileName = 'dotnet' + $startInfo.Arguments = "run --project `"$ProjectPath`"" + $startInfo.WorkingDirectory = $PSScriptRoot + $startInfo.UseShellExecute = $false + $startInfo.RedirectStandardOutput = $true + $startInfo.RedirectStandardError = $true + + foreach ($key in $EnvironmentVariables.Keys) { + $startInfo.Environment[$key] = $EnvironmentVariables[$key] + } + + $process = [System.Diagnostics.Process]::new() + $process.StartInfo = $startInfo + + $outputHandler = [System.Diagnostics.DataReceivedEventHandler] { + param($sender, $eventArgs) + if ($null -ne $eventArgs.Data) { + Write-LogLine $eventArgs.Data + } + } + $errorHandler = [System.Diagnostics.DataReceivedEventHandler] { + param($sender, $eventArgs) + if ($null -ne $eventArgs.Data) { + Write-LogLine $eventArgs.Data + } + } + + $process.add_OutputDataReceived($outputHandler) + $process.add_ErrorDataReceived($errorHandler) + $process.Start() | Out-Null + $process.BeginOutputReadLine() + $process.BeginErrorReadLine() + + return [pscustomobject]@{ + Process = $process + OutputHandler = $outputHandler + ErrorHandler = $errorHandler + } +} + +function Stop-LoggedProcess { + param($LoggedProcess) + + if ($null -eq $LoggedProcess) { + return + } + + $process = $LoggedProcess.Process + if ($null -eq $process) { + return + } + + try { + if (-not $process.HasExited) { + Stop-Process -Id $process.Id -Force -ErrorAction SilentlyContinue + } + + $process.WaitForExit() + } + finally { + $process.remove_OutputDataReceived($LoggedProcess.OutputHandler) + $process.remove_ErrorDataReceived($LoggedProcess.ErrorHandler) + $process.Dispose() + } +} + +function Get-OutputLines { + if (-not (Test-Path $OUTPUT_LOG)) { + return @() + } + + try { + return [System.IO.File]::ReadAllLines($OUTPUT_LOG) + } + catch [System.IO.IOException] { + return @() + } +} + +function Test-StepsReady { + $lines = @(Get-OutputLines) + return $lines.Contains('READY:inventory-step') -and + $lines.Contains('READY:billing-step') -and + $lines.Contains('READY:shipping-step') +} + +function Test-StepsCompleted { + $lines = @(Get-OutputLines) + return $lines.Contains("SUCCESS:routing-slip-starter:routed $OrderId") -and + $lines.Contains("SUCCESS:inventory-step:processed $OrderId at InventoryStep") -and + $lines.Contains("SUCCESS:billing-step:processed $OrderId at BillingStep") -and + $lines.Contains("SUCCESS:shipping-step:processed $OrderId at ShippingStep") +} + +function Wait-ForCondition { + param( + [scriptblock]$Condition, + [string]$FailureMessage + ) + + $maxAttempts = 60 + + for ($attempt = 0; $attempt -lt $maxAttempts; $attempt++) { + if (& $Condition) { + return + } + + Start-Sleep -Milliseconds 500 + } + + throw $FailureMessage +} + +try { + Start-ExampleDependencies + + '' | Set-Content -Path $OUTPUT_LOG + $sharedEnvironment = @{ + 'SC_EXAMPLES_INVENTORY_QUEUE_NAME' = $InventoryQueueName + 'SC_EXAMPLES_BILLING_QUEUE_NAME' = $BillingQueueName + 'SC_EXAMPLES_SHIPPING_QUEUE_NAME' = $ShippingQueueName + } + + $inventoryProcess = Start-LoggedProcess $inventoryProject $sharedEnvironment + $billingProcess = Start-LoggedProcess $billingProject $sharedEnvironment + $shippingProcess = Start-LoggedProcess $shippingProject $sharedEnvironment + + Wait-ForCondition -Condition { Test-StepsReady } -FailureMessage 'Step consumers did not become ready within 30 seconds' + + $starterEnvironment = @{} + foreach ($key in $sharedEnvironment.Keys) { + $starterEnvironment[$key] = $sharedEnvironment[$key] + } + $starterEnvironment['SC_EXAMPLES_ORDER_ID'] = $OrderId + + $starterProcess = Start-LoggedProcess $starterProject $starterEnvironment + $starterProcess.Process.WaitForExit() + + if ($starterProcess.Process.ExitCode -ne 0) { + throw "Starter exited with code $($starterProcess.Process.ExitCode)" + } + + Wait-ForCondition -Condition { Test-StepsCompleted } -FailureMessage 'Routing slip did not complete all three steps within 30 seconds' +} +finally { + Stop-LoggedProcess $starterProcess + Stop-LoggedProcess $inventoryProcess + Stop-LoggedProcess $billingProcess + Stop-LoggedProcess $shippingProcess +} diff --git a/examples/RoutingSlip/run.sh b/examples/RoutingSlip/run.sh new file mode 100755 index 000000000..a19035663 --- /dev/null +++ b/examples/RoutingSlip/run.sh @@ -0,0 +1,102 @@ +#!/usr/bin/env bash +set -euo pipefail + +SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)" +source "$SCRIPT_DIR/../scripts/common.sh" + +OUTPUT_LOG="$SCRIPT_DIR/output.log" +RUN_ID=$(date +%s%N) +ORDER_ID="routing-slip-order-${RUN_ID}" +INVENTORY_QUEUE_NAME="routing-slip-inventory-${RUN_ID}" +BILLING_QUEUE_NAME="routing-slip-billing-${RUN_ID}" +SHIPPING_QUEUE_NAME="routing-slip-shipping-${RUN_ID}" +PIDS=() + +cleanup() { + for pid in "${PIDS[@]:-}"; do + kill "$pid" 2>/dev/null || true + done + + for pid in "${PIDS[@]:-}"; do + wait "$pid" 2>/dev/null || true + done +} + +trap cleanup EXIT + +wait_for_ready() { + local max_attempts=60 + local attempt=0 + + while [ $attempt -lt $max_attempts ]; do + if grep -q '^READY:inventory-step$' "$OUTPUT_LOG" 2>/dev/null && + grep -q '^READY:billing-step$' "$OUTPUT_LOG" 2>/dev/null && + grep -q '^READY:shipping-step$' "$OUTPUT_LOG" 2>/dev/null; then + return 0 + fi + + sleep 0.5 + attempt=$((attempt + 1)) + done + + return 1 +} + +verification_complete() { + grep -q "^SUCCESS:routing-slip-starter:routed ${ORDER_ID}$" "$OUTPUT_LOG" 2>/dev/null && + grep -q "^SUCCESS:inventory-step:processed ${ORDER_ID} at InventoryStep$" "$OUTPUT_LOG" 2>/dev/null && + grep -q "^SUCCESS:billing-step:processed ${ORDER_ID} at BillingStep$" "$OUTPUT_LOG" 2>/dev/null && + grep -q "^SUCCESS:shipping-step:processed ${ORDER_ID} at ShippingStep$" "$OUTPUT_LOG" 2>/dev/null +} + +wait_for_completion() { + local max_attempts=60 + local attempt=0 + + while [ $attempt -lt $max_attempts ]; do + if verification_complete; then + return 0 + fi + + sleep 0.5 + attempt=$((attempt + 1)) + done + + return 1 +} + +start_passive() { + local project_path="$1" + SC_EXAMPLES_INVENTORY_QUEUE_NAME="$INVENTORY_QUEUE_NAME" \ + SC_EXAMPLES_BILLING_QUEUE_NAME="$BILLING_QUEUE_NAME" \ + SC_EXAMPLES_SHIPPING_QUEUE_NAME="$SHIPPING_QUEUE_NAME" \ + dotnet run --no-build --project "$project_path" >> "$OUTPUT_LOG" 2>&1 & + PIDS+=("$!") +} + +start_dependencies +prebuild_solution "$SCRIPT_DIR/RoutingSlip.sln" +> "$OUTPUT_LOG" + +start_passive "$SCRIPT_DIR/src/ServiceConnect.Examples.RoutingSlip.InventoryStep/ServiceConnect.Examples.RoutingSlip.InventoryStep.csproj" +start_passive "$SCRIPT_DIR/src/ServiceConnect.Examples.RoutingSlip.BillingStep/ServiceConnect.Examples.RoutingSlip.BillingStep.csproj" +start_passive "$SCRIPT_DIR/src/ServiceConnect.Examples.RoutingSlip.ShippingStep/ServiceConnect.Examples.RoutingSlip.ShippingStep.csproj" + +if ! wait_for_ready; then + echo "ERROR: Step consumers did not become ready within 30 seconds" + exit 1 +fi + +SC_EXAMPLES_INVENTORY_QUEUE_NAME="$INVENTORY_QUEUE_NAME" \ + SC_EXAMPLES_BILLING_QUEUE_NAME="$BILLING_QUEUE_NAME" \ + SC_EXAMPLES_SHIPPING_QUEUE_NAME="$SHIPPING_QUEUE_NAME" \ + SC_EXAMPLES_ORDER_ID="$ORDER_ID" \ + dotnet run --no-build --project "$SCRIPT_DIR/src/ServiceConnect.Examples.RoutingSlip.Starter/ServiceConnect.Examples.RoutingSlip.Starter.csproj" >> "$OUTPUT_LOG" 2>&1 & +STARTER_PID=$! +PIDS+=("$STARTER_PID") +wait "$STARTER_PID" + +if ! wait_for_completion; then + echo "ERROR: Routing slip did not complete all three steps within 30 seconds" + exit 1 +fi diff --git a/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.BillingStep/Program.cs b/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.BillingStep/Program.cs new file mode 100644 index 000000000..572844822 --- /dev/null +++ b/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.BillingStep/Program.cs @@ -0,0 +1,37 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.RoutingSlip.BillingStep; +using ServiceConnect.Examples.RoutingSlip.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Interfaces; + +var settings = ExampleSettingsLoader.Load(); +var billingQueueName = Environment.GetEnvironmentVariable("SC_EXAMPLES_BILLING_QUEUE_NAME") ?? "routing-slip-billing"; +var shippingQueueName = Environment.GetEnvironmentVariable("SC_EXAMPLES_SHIPPING_QUEUE_NAME") ?? "routing-slip-shipping"; + +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +var handlerReferences = new List +{ + new() { HandlerType = typeof(RoutingSlipOrderHandler), MessageType = typeof(RoutingSlipOrder) } +}; + +var services = new ServiceCollection(); +services.AddSingleton>(handlerReferences); +services.AddTransient, RoutingSlipOrderHandler>(); +services.AddExampleBus( + settings, + billingQueueName, + configureQueues: queues => queues.AddQueueMapping(typeof(RoutingSlipOrder), shippingQueueName)); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); +await bus.StartConsumingAsync(); +ConsoleStatus.Ready("billing-step"); +await Console.Out.FlushAsync(); +await Task.Delay(Timeout.InfiniteTimeSpan); diff --git a/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.BillingStep/RoutingSlipOrderHandler.cs b/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.BillingStep/RoutingSlipOrderHandler.cs new file mode 100644 index 000000000..03ef60679 --- /dev/null +++ b/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.BillingStep/RoutingSlipOrderHandler.cs @@ -0,0 +1,15 @@ +using ServiceConnect.Examples.RoutingSlip.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.RoutingSlip.BillingStep; + +public sealed class RoutingSlipOrderHandler : IMessageHandler +{ + public async Task HandleAsync(RoutingSlipOrder message, IConsumeContext context, CancellationToken cancellationToken = default) + { + message.CurrentStep = "BillingStep"; + ConsoleStatus.Success("billing-step", $"processed {message.OrderId} at {message.CurrentStep}"); + await Console.Out.FlushAsync(); + } +} diff --git a/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.BillingStep/ServiceConnect.Examples.RoutingSlip.BillingStep.csproj b/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.BillingStep/ServiceConnect.Examples.RoutingSlip.BillingStep.csproj new file mode 100644 index 000000000..2a38c0f0e --- /dev/null +++ b/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.BillingStep/ServiceConnect.Examples.RoutingSlip.BillingStep.csproj @@ -0,0 +1,10 @@ + + + Exe + + + + + + + diff --git a/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.Contracts/RoutingSlipOrder.cs b/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.Contracts/RoutingSlipOrder.cs new file mode 100644 index 000000000..1c746774c --- /dev/null +++ b/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.Contracts/RoutingSlipOrder.cs @@ -0,0 +1,9 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.RoutingSlip.Contracts; + +public sealed class RoutingSlipOrder(Guid correlationId) : Message(correlationId) +{ + public string OrderId { get; init; } = string.Empty; + public string CurrentStep { get; set; } = string.Empty; +} diff --git a/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.Contracts/ServiceConnect.Examples.RoutingSlip.Contracts.csproj b/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.Contracts/ServiceConnect.Examples.RoutingSlip.Contracts.csproj new file mode 100644 index 000000000..02cd0ca30 --- /dev/null +++ b/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.Contracts/ServiceConnect.Examples.RoutingSlip.Contracts.csproj @@ -0,0 +1,5 @@ + + + + + diff --git a/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.InventoryStep/Program.cs b/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.InventoryStep/Program.cs new file mode 100644 index 000000000..27036c0e1 --- /dev/null +++ b/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.InventoryStep/Program.cs @@ -0,0 +1,38 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.RoutingSlip.Contracts; +using ServiceConnect.Examples.RoutingSlip.InventoryStep; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Interfaces; + +var settings = ExampleSettingsLoader.Load(); +var inventoryQueueName = Environment.GetEnvironmentVariable("SC_EXAMPLES_INVENTORY_QUEUE_NAME") ?? "routing-slip-inventory"; +var billingQueueName = Environment.GetEnvironmentVariable("SC_EXAMPLES_BILLING_QUEUE_NAME") ?? "routing-slip-billing"; +var shippingQueueName = Environment.GetEnvironmentVariable("SC_EXAMPLES_SHIPPING_QUEUE_NAME") ?? "routing-slip-shipping"; + +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +var handlerReferences = new List +{ + new() { HandlerType = typeof(RoutingSlipOrderHandler), MessageType = typeof(RoutingSlipOrder) } +}; + +var services = new ServiceCollection(); +services.AddSingleton>(handlerReferences); +services.AddTransient, RoutingSlipOrderHandler>(); +services.AddExampleBus( + settings, + inventoryQueueName, + configureQueues: queues => queues.AddQueueMapping(typeof(RoutingSlipOrder), [billingQueueName, shippingQueueName])); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); +await bus.StartConsumingAsync(); +ConsoleStatus.Ready("inventory-step"); +await Console.Out.FlushAsync(); +await Task.Delay(Timeout.InfiniteTimeSpan); diff --git a/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.InventoryStep/RoutingSlipOrderHandler.cs b/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.InventoryStep/RoutingSlipOrderHandler.cs new file mode 100644 index 000000000..c0be3f00b --- /dev/null +++ b/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.InventoryStep/RoutingSlipOrderHandler.cs @@ -0,0 +1,15 @@ +using ServiceConnect.Examples.RoutingSlip.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.RoutingSlip.InventoryStep; + +public sealed class RoutingSlipOrderHandler : IMessageHandler +{ + public async Task HandleAsync(RoutingSlipOrder message, IConsumeContext context, CancellationToken cancellationToken = default) + { + message.CurrentStep = "InventoryStep"; + ConsoleStatus.Success("inventory-step", $"processed {message.OrderId} at {message.CurrentStep}"); + await Console.Out.FlushAsync(); + } +} diff --git a/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.InventoryStep/ServiceConnect.Examples.RoutingSlip.InventoryStep.csproj b/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.InventoryStep/ServiceConnect.Examples.RoutingSlip.InventoryStep.csproj new file mode 100644 index 000000000..2a38c0f0e --- /dev/null +++ b/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.InventoryStep/ServiceConnect.Examples.RoutingSlip.InventoryStep.csproj @@ -0,0 +1,10 @@ + + + Exe + + + + + + + diff --git a/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.ShippingStep/Program.cs b/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.ShippingStep/Program.cs new file mode 100644 index 000000000..48552ca44 --- /dev/null +++ b/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.ShippingStep/Program.cs @@ -0,0 +1,33 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.RoutingSlip.Contracts; +using ServiceConnect.Examples.RoutingSlip.ShippingStep; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Interfaces; + +var settings = ExampleSettingsLoader.Load(); +var shippingQueueName = Environment.GetEnvironmentVariable("SC_EXAMPLES_SHIPPING_QUEUE_NAME") ?? "routing-slip-shipping"; + +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +var handlerReferences = new List +{ + new() { HandlerType = typeof(RoutingSlipOrderHandler), MessageType = typeof(RoutingSlipOrder) } +}; + +var services = new ServiceCollection(); +services.AddSingleton>(handlerReferences); +services.AddTransient, RoutingSlipOrderHandler>(); +services.AddExampleBus(settings, shippingQueueName); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); +await bus.StartConsumingAsync(); +ConsoleStatus.Ready("shipping-step"); +await Console.Out.FlushAsync(); +await Task.Delay(Timeout.InfiniteTimeSpan); diff --git a/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.ShippingStep/RoutingSlipOrderHandler.cs b/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.ShippingStep/RoutingSlipOrderHandler.cs new file mode 100644 index 000000000..6cfa0fd8c --- /dev/null +++ b/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.ShippingStep/RoutingSlipOrderHandler.cs @@ -0,0 +1,15 @@ +using ServiceConnect.Examples.RoutingSlip.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.RoutingSlip.ShippingStep; + +public sealed class RoutingSlipOrderHandler : IMessageHandler +{ + public async Task HandleAsync(RoutingSlipOrder message, IConsumeContext context, CancellationToken cancellationToken = default) + { + message.CurrentStep = "ShippingStep"; + ConsoleStatus.Success("shipping-step", $"processed {message.OrderId} at {message.CurrentStep}"); + await Console.Out.FlushAsync(); + } +} diff --git a/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.ShippingStep/ServiceConnect.Examples.RoutingSlip.ShippingStep.csproj b/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.ShippingStep/ServiceConnect.Examples.RoutingSlip.ShippingStep.csproj new file mode 100644 index 000000000..2a38c0f0e --- /dev/null +++ b/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.ShippingStep/ServiceConnect.Examples.RoutingSlip.ShippingStep.csproj @@ -0,0 +1,10 @@ + + + Exe + + + + + + + diff --git a/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.Starter/Program.cs b/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.Starter/Program.cs new file mode 100644 index 000000000..f3f283bf5 --- /dev/null +++ b/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.Starter/Program.cs @@ -0,0 +1,30 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.RoutingSlip.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Interfaces; + +var settings = ExampleSettingsLoader.Load(); +var orderId = Environment.GetEnvironmentVariable("SC_EXAMPLES_ORDER_ID") ?? "routing-slip-order-001"; +var inventoryQueueName = Environment.GetEnvironmentVariable("SC_EXAMPLES_INVENTORY_QUEUE_NAME") ?? "routing-slip-inventory"; +var billingQueueName = Environment.GetEnvironmentVariable("SC_EXAMPLES_BILLING_QUEUE_NAME") ?? "routing-slip-billing"; +var shippingQueueName = Environment.GetEnvironmentVariable("SC_EXAMPLES_SHIPPING_QUEUE_NAME") ?? "routing-slip-shipping"; + +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +var services = new ServiceCollection(); +services.AddSingleton>([]); +services.AddExampleBus(settings, "routing-slip-starter"); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); +await bus.RouteAsync( + new RoutingSlipOrder(Guid.NewGuid()) { OrderId = orderId, CurrentStep = "InventoryStep" }, + [inventoryQueueName, billingQueueName, shippingQueueName]); +ConsoleStatus.Success("routing-slip-starter", $"routed {orderId}"); +await Console.Out.FlushAsync(); diff --git a/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.Starter/ServiceConnect.Examples.RoutingSlip.Starter.csproj b/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.Starter/ServiceConnect.Examples.RoutingSlip.Starter.csproj new file mode 100644 index 000000000..2a38c0f0e --- /dev/null +++ b/examples/RoutingSlip/src/ServiceConnect.Examples.RoutingSlip.Starter/ServiceConnect.Examples.RoutingSlip.Starter.csproj @@ -0,0 +1,10 @@ + + + Exe + + + + + + + diff --git a/examples/ScatterGather/README.md b/examples/ScatterGather/README.md new file mode 100644 index 000000000..187dee489 --- /dev/null +++ b/examples/ScatterGather/README.md @@ -0,0 +1,62 @@ +# ScatterGather + +## Overview + +Send one search request to multiple catalog endpoints and wait for all expected replies. The requester uses `SendRequestMultiAsync` to collect results from `CatalogA` and `CatalogB` in a single call. + +## Participants + +- `ServiceConnect.Examples.ScatterGather.Requester` +- `ServiceConnect.Examples.ScatterGather.CatalogA` +- `ServiceConnect.Examples.ScatterGather.CatalogB` + +## Message Flow + +```mermaid +sequenceDiagram + participant Requester + participant CatalogA + participant CatalogB + Requester->>CatalogA: SearchRequest(service-bus) + Requester->>CatalogB: SearchRequest(service-bus) + CatalogA-->>Requester: SearchResponse(CatalogA, catalog-a-result-001) + CatalogB-->>Requester: SearchResponse(CatalogB, catalog-b-result-777) +``` + +## Prerequisites + +`docker compose -f ../docker-compose.yml up -d` + +## Run This Example + +`bash run.sh` + +The scripted runner writes the child-process output to `output.log` and verifies the success markers there. + +## Run Manually + +Run both catalogs first, then the requester. + +`dotnet run --project src/ServiceConnect.Examples.ScatterGather.CatalogA/ServiceConnect.Examples.ScatterGather.CatalogA.csproj` + +`dotnet run --project src/ServiceConnect.Examples.ScatterGather.CatalogB/ServiceConnect.Examples.ScatterGather.CatalogB.csproj` + +`dotnet run --project src/ServiceConnect.Examples.ScatterGather.Requester/ServiceConnect.Examples.ScatterGather.Requester.csproj` + +## Expected Output + +`READY:scatter-gather-catalog-a` + +`READY:scatter-gather-catalog-b` + +`SUCCESS:scatter-gather-requester:received 2 replies` + +`SUCCESS:scatter-gather-catalog-a:returned CatalogA/catalog-a-result-001 for service-bus-...` + +`SUCCESS:scatter-gather-catalog-b:returned CatalogB/catalog-b-result-777 for service-bus-...` + +The success lines can appear in either order because the two catalog responders run concurrently. + +## What To Notice + +The requester targets two endpoints in one call and sets `ExpectedReplyCount = 2`, so the request completes as soon as both replies arrive. Each catalog responds independently with its own result payload, which is the core scatter/gather pattern. diff --git a/examples/ScatterGather/ScatterGather.sln b/examples/ScatterGather/ScatterGather.sln new file mode 100644 index 000000000..e23bc3b82 --- /dev/null +++ b/examples/ScatterGather/ScatterGather.sln @@ -0,0 +1,84 @@ + +Microsoft Visual Studio Solution File, Format Version 12.00 +# Visual Studio Version 17 +VisualStudioVersion = 17.0.31903.59 +MinimumVisualStudioVersion = 10.0.40219.1 +Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{D6A018D9-B1B1-4D0B-B09D-851A2B4C6E01}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect.Examples.ScatterGather.Contracts", "src\ServiceConnect.Examples.ScatterGather.Contracts\ServiceConnect.Examples.ScatterGather.Contracts.csproj", "{6B3D8C95-0E97-4FB2-A94F-E322B8A2D101}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect.Examples.ScatterGather.Requester", 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"$PSScriptRoot/../scripts/common.ps1" + +$catalogAProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.ScatterGather.CatalogA/ServiceConnect.Examples.ScatterGather.CatalogA.csproj' +$catalogBProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.ScatterGather.CatalogB/ServiceConnect.Examples.ScatterGather.CatalogB.csproj' +$requesterProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.ScatterGather.Requester/ServiceConnect.Examples.ScatterGather.Requester.csproj' +$OUTPUT_LOG = Join-Path $PSScriptRoot 'output.log' +$runId = [DateTimeOffset]::UtcNow.ToUnixTimeMilliseconds().ToString() + '-' + [Guid]::NewGuid().ToString('N') +$requesterQueueName = "scatter-gather-requester-$runId" +$catalogAQueueName = "scatter-gather-catalog-a-$runId" +$catalogBQueueName = "scatter-gather-catalog-b-$runId" +$searchQuery = "service-bus-$runId" +$catalogAProcess = $null +$catalogBProcess = $null +$requesterJob = $null + +function Wait-ForReady { + $timeout = 30 + $elapsed = 0 + + while ($elapsed -lt $timeout) { + if ((Test-Path $OUTPUT_LOG) -and + (Select-String -Path $OUTPUT_LOG -Pattern '^READY:scatter-gather-catalog-a$' -Quiet) -and + (Select-String -Path $OUTPUT_LOG -Pattern '^READY:scatter-gather-catalog-b$' -Quiet)) { + return $true + } + + Start-Sleep -Milliseconds 500 + $elapsed += 0.5 + } + + return $false +} + +function Wait-ForCompletion { + $timeout = 30 + $elapsed = 0 + + while ($elapsed -lt $timeout) { + if ((Test-Path $OUTPUT_LOG) -and + (Select-String -Path $OUTPUT_LOG -Pattern '^SUCCESS:scatter-gather-requester:received 2 replies$' -Quiet) -and + (Select-String -Path $OUTPUT_LOG -Pattern ([regex]::Escape("SUCCESS:scatter-gather-catalog-a:returned CatalogA/catalog-a-result-001 for $searchQuery")) -Quiet) -and + (Select-String -Path $OUTPUT_LOG -Pattern ([regex]::Escape("SUCCESS:scatter-gather-catalog-b:returned CatalogB/catalog-b-result-777 for $searchQuery")) -Quiet)) { + return $true + } + + Start-Sleep -Milliseconds 500 + $elapsed += 0.5 + } + + return $false +} + +try { + Start-ExampleDependencies + '' | Set-Content -Path $OUTPUT_LOG + + $catalogAEnv = @{ + SC_EXAMPLES_CATALOG_A_QUEUE_NAME = $catalogAQueueName + SC_EXAMPLES_CATALOG_B_QUEUE_NAME = $catalogBQueueName + } + + $catalogAProcess = Start-Process pwsh -ArgumentList @('-NoProfile', '-Command', "`$env:SC_EXAMPLES_CATALOG_A_QUEUE_NAME='$catalogAQueueName'; `$env:SC_EXAMPLES_CATALOG_B_QUEUE_NAME='$catalogBQueueName'; dotnet run --project '$catalogAProject' 2>&1 | Out-File -FilePath '$OUTPUT_LOG' -Append") -PassThru -NoNewWindow + $catalogBProcess = Start-Process pwsh -ArgumentList @('-NoProfile', '-Command', "`$env:SC_EXAMPLES_CATALOG_A_QUEUE_NAME='$catalogAQueueName'; `$env:SC_EXAMPLES_CATALOG_B_QUEUE_NAME='$catalogBQueueName'; dotnet run --project '$catalogBProject' 2>&1 | Out-File -FilePath '$OUTPUT_LOG' -Append") -PassThru -NoNewWindow + + if (-not (Wait-ForReady)) { + throw 'Catalog services did not become ready within 30 seconds' + } + + $requesterJob = Start-Job -ScriptBlock { + $env:SC_EXAMPLES_REQUESTER_QUEUE_NAME = $using:requesterQueueName + $env:SC_EXAMPLES_CATALOG_A_QUEUE_NAME = $using:catalogAQueueName + $env:SC_EXAMPLES_CATALOG_B_QUEUE_NAME = $using:catalogBQueueName + $env:SC_EXAMPLES_SEARCH_QUERY = $using:searchQuery + dotnet run --project $using:requesterProject 2>&1 | Out-File -FilePath $using:OUTPUT_LOG -Append + } + + $requesterJob | Wait-Job | Remove-Job -Force + + if (-not (Wait-ForCompletion)) { + throw 'Scatter/gather run did not produce both catalog replies within 30 seconds' + } +} +finally { + if ($null -ne $requesterJob) { + Remove-Job -Job $requesterJob -Force -ErrorAction SilentlyContinue + } + + if ($null -ne $catalogAProcess -and -not $catalogAProcess.HasExited) { + Stop-Process -Id $catalogAProcess.Id -Force -ErrorAction SilentlyContinue + $catalogAProcess.WaitForExit() + } + + if ($null -ne $catalogBProcess -and -not $catalogBProcess.HasExited) { + Stop-Process -Id $catalogBProcess.Id -Force -ErrorAction SilentlyContinue + $catalogBProcess.WaitForExit() + } +} diff --git a/examples/ScatterGather/run.sh b/examples/ScatterGather/run.sh new file mode 100755 index 000000000..34f28dcf4 --- /dev/null +++ b/examples/ScatterGather/run.sh @@ -0,0 +1,101 @@ +#!/usr/bin/env bash +set -euo pipefail + +SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)" +source "$SCRIPT_DIR/../scripts/common.sh" + +OUTPUT_LOG="$SCRIPT_DIR/output.log" +RUN_ID=$(date +%s%N) +REQUESTER_QUEUE_NAME="scatter-gather-requester-${RUN_ID}" +CATALOG_A_QUEUE_NAME="scatter-gather-catalog-a-${RUN_ID}" +CATALOG_B_QUEUE_NAME="scatter-gather-catalog-b-${RUN_ID}" +SEARCH_QUERY="service-bus-${RUN_ID}" +PIDS=() + +cleanup() { + for pid in "${PIDS[@]:-}"; do + kill "$pid" 2>/dev/null || true + done + + for pid in "${PIDS[@]:-}"; do + wait "$pid" 2>/dev/null || true + done +} + +trap cleanup EXIT + +wait_for_ready() { + local max_attempts=60 + local attempt=0 + + while [ $attempt -lt $max_attempts ]; do + if grep -q '^READY:scatter-gather-catalog-a$' "$OUTPUT_LOG" 2>/dev/null && + grep -q '^READY:scatter-gather-catalog-b$' "$OUTPUT_LOG" 2>/dev/null; then + return 0 + fi + + sleep 0.5 + attempt=$((attempt + 1)) + done + + return 1 +} + +verification_complete() { + grep -q '^SUCCESS:scatter-gather-requester:received 2 replies$' "$OUTPUT_LOG" 2>/dev/null && + grep -q "^SUCCESS:scatter-gather-catalog-a:returned CatalogA/catalog-a-result-001 for ${SEARCH_QUERY}$" "$OUTPUT_LOG" 2>/dev/null && + grep -q "^SUCCESS:scatter-gather-catalog-b:returned CatalogB/catalog-b-result-777 for ${SEARCH_QUERY}$" "$OUTPUT_LOG" 2>/dev/null +} + +wait_for_completion() { + local max_attempts=60 + local attempt=0 + + while [ $attempt -lt $max_attempts ]; do + if verification_complete; then + return 0 + fi + + sleep 0.5 + attempt=$((attempt + 1)) + done + + return 1 +} + +start_passive() { + local project_path="$1" + SC_EXAMPLES_CATALOG_A_QUEUE_NAME="$CATALOG_A_QUEUE_NAME" \ + SC_EXAMPLES_CATALOG_B_QUEUE_NAME="$CATALOG_B_QUEUE_NAME" \ + dotnet run --no-build --project "$project_path" >> "$OUTPUT_LOG" 2>&1 & + PIDS+=("$!") +} + +start_dependencies +prebuild_solution "$SCRIPT_DIR/ScatterGather.sln" +> "$OUTPUT_LOG" + +start_passive "$SCRIPT_DIR/src/ServiceConnect.Examples.ScatterGather.CatalogA/ServiceConnect.Examples.ScatterGather.CatalogA.csproj" +start_passive "$SCRIPT_DIR/src/ServiceConnect.Examples.ScatterGather.CatalogB/ServiceConnect.Examples.ScatterGather.CatalogB.csproj" + +if ! wait_for_ready; then + echo "ERROR: Catalog services did not become ready within 30 seconds" + exit 1 +fi + +SC_EXAMPLES_REQUESTER_QUEUE_NAME="$REQUESTER_QUEUE_NAME" \ + SC_EXAMPLES_CATALOG_A_QUEUE_NAME="$CATALOG_A_QUEUE_NAME" \ + SC_EXAMPLES_CATALOG_B_QUEUE_NAME="$CATALOG_B_QUEUE_NAME" \ + SC_EXAMPLES_SEARCH_QUERY="$SEARCH_QUERY" \ + dotnet run --no-build --project "$SCRIPT_DIR/src/ServiceConnect.Examples.ScatterGather.Requester/ServiceConnect.Examples.ScatterGather.Requester.csproj" >> "$OUTPUT_LOG" 2>&1 & +REQUESTER_PID=$! +PIDS+=("$REQUESTER_PID") +if ! wait "$REQUESTER_PID"; then + echo "ERROR: Requester exited before the scatter/gather flow completed" + exit 1 +fi + +if ! wait_for_completion; then + echo "ERROR: Scatter/gather run did not produce both catalog replies within 30 seconds" + exit 1 +fi diff --git a/examples/ScatterGather/src/ServiceConnect.Examples.ScatterGather.CatalogA/Program.cs b/examples/ScatterGather/src/ServiceConnect.Examples.ScatterGather.CatalogA/Program.cs new file mode 100644 index 000000000..f114996ad --- /dev/null +++ b/examples/ScatterGather/src/ServiceConnect.Examples.ScatterGather.CatalogA/Program.cs @@ -0,0 +1,33 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.ScatterGather.CatalogA; +using ServiceConnect.Examples.ScatterGather.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Interfaces; + +var settings = ExampleSettingsLoader.Load(); +var queueName = Environment.GetEnvironmentVariable("SC_EXAMPLES_CATALOG_A_QUEUE_NAME") ?? "scatter-gather-catalog-a"; + +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +var handlerReferences = new List +{ + new() { HandlerType = typeof(SearchRequestHandler), MessageType = typeof(SearchRequest) } +}; + +var services = new ServiceCollection(); +services.AddSingleton>(handlerReferences); +services.AddTransient, SearchRequestHandler>(); +services.AddExampleBus(settings, queueName); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); +await bus.StartConsumingAsync(); +ConsoleStatus.Ready("scatter-gather-catalog-a"); +await Console.Out.FlushAsync(); +await Task.Delay(Timeout.InfiniteTimeSpan); diff --git a/examples/ScatterGather/src/ServiceConnect.Examples.ScatterGather.CatalogA/SearchRequestHandler.cs b/examples/ScatterGather/src/ServiceConnect.Examples.ScatterGather.CatalogA/SearchRequestHandler.cs new file mode 100644 index 000000000..9e00f1b1c --- /dev/null +++ b/examples/ScatterGather/src/ServiceConnect.Examples.ScatterGather.CatalogA/SearchRequestHandler.cs @@ -0,0 +1,19 @@ +using ServiceConnect.Examples.ScatterGather.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.ScatterGather.CatalogA; + +public sealed class SearchRequestHandler : IMessageHandler +{ + public async Task HandleAsync(SearchRequest message, IConsumeContext context, CancellationToken cancellationToken = default) + { + await context.ReplyAsync(new SearchResponse(message.CorrelationId) + { + CatalogName = "CatalogA", + ResultId = "catalog-a-result-001" + }); + + ConsoleStatus.Success("scatter-gather-catalog-a", $"returned CatalogA/catalog-a-result-001 for {message.Query}"); + } +} diff --git a/examples/ScatterGather/src/ServiceConnect.Examples.ScatterGather.CatalogA/ServiceConnect.Examples.ScatterGather.CatalogA.csproj b/examples/ScatterGather/src/ServiceConnect.Examples.ScatterGather.CatalogA/ServiceConnect.Examples.ScatterGather.CatalogA.csproj new file mode 100644 index 000000000..29f0d1d47 --- /dev/null +++ b/examples/ScatterGather/src/ServiceConnect.Examples.ScatterGather.CatalogA/ServiceConnect.Examples.ScatterGather.CatalogA.csproj @@ -0,0 +1,10 @@ + + + Exe + + + + + + + diff --git a/examples/ScatterGather/src/ServiceConnect.Examples.ScatterGather.CatalogB/Program.cs b/examples/ScatterGather/src/ServiceConnect.Examples.ScatterGather.CatalogB/Program.cs new file mode 100644 index 000000000..5ae38d1a5 --- /dev/null +++ b/examples/ScatterGather/src/ServiceConnect.Examples.ScatterGather.CatalogB/Program.cs @@ -0,0 +1,33 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.ScatterGather.CatalogB; +using ServiceConnect.Examples.ScatterGather.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Interfaces; + +var settings = ExampleSettingsLoader.Load(); +var queueName = Environment.GetEnvironmentVariable("SC_EXAMPLES_CATALOG_B_QUEUE_NAME") ?? "scatter-gather-catalog-b"; + +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +var handlerReferences = new List +{ + new() { HandlerType = typeof(SearchRequestHandler), MessageType = typeof(SearchRequest) } +}; + +var services = new ServiceCollection(); +services.AddSingleton>(handlerReferences); +services.AddTransient, SearchRequestHandler>(); +services.AddExampleBus(settings, queueName); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); +await bus.StartConsumingAsync(); +ConsoleStatus.Ready("scatter-gather-catalog-b"); +await Console.Out.FlushAsync(); +await Task.Delay(Timeout.InfiniteTimeSpan); diff --git a/examples/ScatterGather/src/ServiceConnect.Examples.ScatterGather.CatalogB/SearchRequestHandler.cs b/examples/ScatterGather/src/ServiceConnect.Examples.ScatterGather.CatalogB/SearchRequestHandler.cs new file mode 100644 index 000000000..ce47ca725 --- /dev/null +++ b/examples/ScatterGather/src/ServiceConnect.Examples.ScatterGather.CatalogB/SearchRequestHandler.cs @@ -0,0 +1,19 @@ +using ServiceConnect.Examples.ScatterGather.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.ScatterGather.CatalogB; + +public sealed class SearchRequestHandler : IMessageHandler +{ + public async Task HandleAsync(SearchRequest message, IConsumeContext context, CancellationToken cancellationToken = default) + { + await context.ReplyAsync(new SearchResponse(message.CorrelationId) + { + CatalogName = "CatalogB", + ResultId = "catalog-b-result-777" + }); + + ConsoleStatus.Success("scatter-gather-catalog-b", $"returned CatalogB/catalog-b-result-777 for {message.Query}"); + } +} diff --git a/examples/ScatterGather/src/ServiceConnect.Examples.ScatterGather.CatalogB/ServiceConnect.Examples.ScatterGather.CatalogB.csproj b/examples/ScatterGather/src/ServiceConnect.Examples.ScatterGather.CatalogB/ServiceConnect.Examples.ScatterGather.CatalogB.csproj new file mode 100644 index 000000000..29f0d1d47 --- /dev/null +++ b/examples/ScatterGather/src/ServiceConnect.Examples.ScatterGather.CatalogB/ServiceConnect.Examples.ScatterGather.CatalogB.csproj @@ -0,0 +1,10 @@ + + + Exe + + + + + + + diff --git a/examples/ScatterGather/src/ServiceConnect.Examples.ScatterGather.Contracts/SearchRequest.cs b/examples/ScatterGather/src/ServiceConnect.Examples.ScatterGather.Contracts/SearchRequest.cs new file mode 100644 index 000000000..222ac5e62 --- /dev/null +++ b/examples/ScatterGather/src/ServiceConnect.Examples.ScatterGather.Contracts/SearchRequest.cs @@ -0,0 +1,8 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.ScatterGather.Contracts; + +public sealed class SearchRequest(Guid correlationId) : Message(correlationId) +{ + public string Query { get; init; } = string.Empty; +} diff --git a/examples/ScatterGather/src/ServiceConnect.Examples.ScatterGather.Contracts/SearchResponse.cs b/examples/ScatterGather/src/ServiceConnect.Examples.ScatterGather.Contracts/SearchResponse.cs new file mode 100644 index 000000000..752f386c3 --- /dev/null +++ b/examples/ScatterGather/src/ServiceConnect.Examples.ScatterGather.Contracts/SearchResponse.cs @@ -0,0 +1,10 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.ScatterGather.Contracts; + +public sealed class SearchResponse(Guid correlationId) : Message(correlationId) +{ + public string CatalogName { get; init; } = string.Empty; + + public string ResultId { get; init; } = string.Empty; +} diff --git a/examples/ScatterGather/src/ServiceConnect.Examples.ScatterGather.Contracts/ServiceConnect.Examples.ScatterGather.Contracts.csproj b/examples/ScatterGather/src/ServiceConnect.Examples.ScatterGather.Contracts/ServiceConnect.Examples.ScatterGather.Contracts.csproj new file mode 100644 index 000000000..02cd0ca30 --- /dev/null +++ b/examples/ScatterGather/src/ServiceConnect.Examples.ScatterGather.Contracts/ServiceConnect.Examples.ScatterGather.Contracts.csproj @@ -0,0 +1,5 @@ + + + + + diff --git a/examples/ScatterGather/src/ServiceConnect.Examples.ScatterGather.Requester/Program.cs b/examples/ScatterGather/src/ServiceConnect.Examples.ScatterGather.Requester/Program.cs new file mode 100644 index 000000000..22115041f --- /dev/null +++ b/examples/ScatterGather/src/ServiceConnect.Examples.ScatterGather.Requester/Program.cs @@ -0,0 +1,43 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.ScatterGather.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; + +var settings = ExampleSettingsLoader.Load(); +var requesterQueueName = Environment.GetEnvironmentVariable("SC_EXAMPLES_REQUESTER_QUEUE_NAME") ?? "scatter-gather-requester"; +var catalogAQueueName = Environment.GetEnvironmentVariable("SC_EXAMPLES_CATALOG_A_QUEUE_NAME") ?? "scatter-gather-catalog-a"; +var catalogBQueueName = Environment.GetEnvironmentVariable("SC_EXAMPLES_CATALOG_B_QUEUE_NAME") ?? "scatter-gather-catalog-b"; +var searchQuery = Environment.GetEnvironmentVariable("SC_EXAMPLES_SEARCH_QUERY") ?? "service-bus"; + +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +var services = new ServiceCollection(); +services.AddSingleton>([]); +services.AddExampleBus(settings, requesterQueueName); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); +await bus.StartConsumingAsync(); +await Task.Delay(1000); + +// Scatter-gather uses PublishRequestAsync (broadcast) and collects replies from all +// catalog services that respond within the timeout window. EndPoints fan-out is no +// longer supported on request/reply; broadcast + manual correlation is the right pattern. +var replies = new List(); +await bus.PublishRequestAsync( + new SearchRequest(Guid.NewGuid()) { Query = searchQuery }, + reply => { lock (replies) { replies.Add(reply); } }, + new RequestOptions + { + ExpectedReplyCount = 2, + Timeout = 30000 + }); + +ConsoleStatus.Success("scatter-gather-requester", $"received {replies.Count} replies"); diff --git a/examples/ScatterGather/src/ServiceConnect.Examples.ScatterGather.Requester/ServiceConnect.Examples.ScatterGather.Requester.csproj b/examples/ScatterGather/src/ServiceConnect.Examples.ScatterGather.Requester/ServiceConnect.Examples.ScatterGather.Requester.csproj new file mode 100644 index 000000000..29f0d1d47 --- /dev/null +++ b/examples/ScatterGather/src/ServiceConnect.Examples.ScatterGather.Requester/ServiceConnect.Examples.ScatterGather.Requester.csproj @@ -0,0 +1,10 @@ + + + Exe + + + + + + + diff --git a/examples/Streaming/README.md b/examples/Streaming/README.md new file mode 100644 index 000000000..56b6a0be9 --- /dev/null +++ b/examples/Streaming/README.md @@ -0,0 +1,70 @@ +# Streaming + +## Overview + +The uploader opens a write stream to the receiver endpoint, sends one serialized `DocumentUploaded` message in three chunks, and the receiver reassembles the payload before invoking its stream handler. + +## Participants + +- `ServiceConnect.Examples.Streaming.Uploader` +- `ServiceConnect.Examples.Streaming.Receiver` + +## Message Flow + +```mermaid +sequenceDiagram + participant Uploader + participant Receiver + Uploader->>Receiver: stream chunk 1 + Uploader->>Receiver: stream chunk 2 + Uploader->>Receiver: stream chunk 3 + Receiver-->>Receiver: deserialize DocumentUploaded +``` + +## Prerequisites + +`docker compose -f ../docker-compose.yml up -d` + +## Run This Example + +`bash run.sh` + +The scripted runners use a unique receiver queue on each run so repeated smoke tests stay isolated. + +## Run Manually + +Run the receiver first, then the uploader with the same receiver queue name. + +```bash +SC_EXAMPLES_QUEUE_NAME=streaming-receiver-manual \ +dotnet run --project src/ServiceConnect.Examples.Streaming.Receiver/ServiceConnect.Examples.Streaming.Receiver.csproj + +SC_EXAMPLES_ENDPOINT_NAME=streaming-receiver-manual \ +dotnet run --project src/ServiceConnect.Examples.Streaming.Uploader/ServiceConnect.Examples.Streaming.Uploader.csproj +``` + +## Expected Output + +`READY:streaming-receiver` + +`SUCCESS:streaming-uploader:sent 3 chunks for demo-document.txt` + +`SUCCESS:streaming-receiver:received demo-document.txt with 103 bytes` + +## What To Notice + +The receiver handler gets the fully reassembled payload after the final close packet arrives. Even though the uploader writes three chunks, the handler runs once with the original `DocumentUploaded` message restored from the streamed bytes. The reported byte count is the serialized message payload size for that streamed contract. + +## Stream Lifecycle + +**Handler signature.** `IStreamHandler.ExecuteAsync` receives the `IMessageBusReadStream` as a parameter rather than via an ambient property — safe under singleton-registered handlers because nothing about the stream is shared via instance state. + +```csharp +public Task ExecuteAsync(DocumentUploaded message, IMessageBusReadStream stream, CancellationToken cancellationToken = default) +{ + var bytes = stream.Read(); + // ... +} +``` + +**Admission cap.** Admission is gated on an atomic counter (no speculative dictionary insert); the cap is `MaxActiveStreams = 1000`. Attempts to open a stream beyond the cap return `ProcessResult.NotHandled` immediately rather than queuing. **Dispose contract.** The dispatcher rejects late-arriving packets after `DisposeAsync` has been called and drains any in-flight stream state before completing disposal. diff --git a/examples/Streaming/Streaming.sln b/examples/Streaming/Streaming.sln new file mode 100644 index 000000000..026483a6d --- /dev/null +++ b/examples/Streaming/Streaming.sln @@ -0,0 +1,69 @@ + +Microsoft Visual Studio Solution File, Format Version 12.00 +# Visual Studio Version 17 +VisualStudioVersion = 17.0.31903.59 +MinimumVisualStudioVersion = 10.0.40219.1 +Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{6A426A6B-8460-4C14-98CB-4F12C70023D9}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect.Examples.Streaming.Contracts", "src\ServiceConnect.Examples.Streaming.Contracts\ServiceConnect.Examples.Streaming.Contracts.csproj", "{3A0E72AB-BC0B-48A7-8DA6-DF78B739EE8B}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect.Examples.Streaming.Uploader", "src\ServiceConnect.Examples.Streaming.Uploader\ServiceConnect.Examples.Streaming.Uploader.csproj", "{C52FA704-6A9B-4BD1-B471-EFB0E8B205B5}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect.Examples.Streaming.Receiver", "src\ServiceConnect.Examples.Streaming.Receiver\ServiceConnect.Examples.Streaming.Receiver.csproj", "{8AA67C51-77D2-49A2-82AA-3E83E38AB2F4}" +EndProject +Global + GlobalSection(SolutionConfigurationPlatforms) = preSolution + Debug|Any CPU = Debug|Any CPU + Debug|x64 = Debug|x64 + Debug|x86 = Debug|x86 + Release|Any CPU = Release|Any CPU + Release|x64 = Release|x64 + Release|x86 = Release|x86 + EndGlobalSection + GlobalSection(ProjectConfigurationPlatforms) = postSolution + {3A0E72AB-BC0B-48A7-8DA6-DF78B739EE8B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU + {3A0E72AB-BC0B-48A7-8DA6-DF78B739EE8B}.Debug|Any CPU.Build.0 = Debug|Any CPU + {3A0E72AB-BC0B-48A7-8DA6-DF78B739EE8B}.Debug|x64.ActiveCfg = Debug|Any CPU + {3A0E72AB-BC0B-48A7-8DA6-DF78B739EE8B}.Debug|x64.Build.0 = Debug|Any CPU + {3A0E72AB-BC0B-48A7-8DA6-DF78B739EE8B}.Debug|x86.ActiveCfg = Debug|Any CPU + {3A0E72AB-BC0B-48A7-8DA6-DF78B739EE8B}.Debug|x86.Build.0 = Debug|Any CPU + {3A0E72AB-BC0B-48A7-8DA6-DF78B739EE8B}.Release|Any CPU.ActiveCfg = Release|Any CPU + {3A0E72AB-BC0B-48A7-8DA6-DF78B739EE8B}.Release|Any CPU.Build.0 = Release|Any CPU + {3A0E72AB-BC0B-48A7-8DA6-DF78B739EE8B}.Release|x64.ActiveCfg = Release|Any CPU + {3A0E72AB-BC0B-48A7-8DA6-DF78B739EE8B}.Release|x64.Build.0 = Release|Any CPU + {3A0E72AB-BC0B-48A7-8DA6-DF78B739EE8B}.Release|x86.ActiveCfg = Release|Any CPU + {3A0E72AB-BC0B-48A7-8DA6-DF78B739EE8B}.Release|x86.Build.0 = Release|Any CPU + {C52FA704-6A9B-4BD1-B471-EFB0E8B205B5}.Debug|Any CPU.ActiveCfg = Debug|Any CPU + {C52FA704-6A9B-4BD1-B471-EFB0E8B205B5}.Debug|Any 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{6A426A6B-8460-4C14-98CB-4F12C70023D9} + {C52FA704-6A9B-4BD1-B471-EFB0E8B205B5} = {6A426A6B-8460-4C14-98CB-4F12C70023D9} + {8AA67C51-77D2-49A2-82AA-3E83E38AB2F4} = {6A426A6B-8460-4C14-98CB-4F12C70023D9} + EndGlobalSection +EndGlobal diff --git a/examples/Streaming/run.ps1 b/examples/Streaming/run.ps1 new file mode 100644 index 000000000..1a5b211df --- /dev/null +++ b/examples/Streaming/run.ps1 @@ -0,0 +1,71 @@ +$ErrorActionPreference = 'Stop' +$PSNativeCommandUseErrorActionPreference = $true + +. "$PSScriptRoot/../scripts/common.ps1" + +$receiverProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.Streaming.Receiver/ServiceConnect.Examples.Streaming.Receiver.csproj' +$uploaderProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.Streaming.Uploader/ServiceConnect.Examples.Streaming.Uploader.csproj' +$OUTPUT_LOG = Join-Path $PSScriptRoot 'output.log' +$runId = [DateTimeOffset]::UtcNow.ToUnixTimeMilliseconds().ToString() + '-' + [Guid]::NewGuid().ToString('N') +$queueName = "streaming-receiver-$runId" +$receiverProcess = $null + +function Wait-ForReady { + $timeout = 30 + $elapsed = 0 + + while ($elapsed -lt $timeout) { + if ((Test-Path $OUTPUT_LOG) -and + (Select-String -Path $OUTPUT_LOG -Pattern '^READY:streaming-receiver$' -Quiet)) { + return $true + } + + Start-Sleep -Milliseconds 500 + $elapsed += 0.5 + } + + return $false +} + +function Wait-ForSuccess { + $timeout = 30 + $elapsed = 0 + + while ($elapsed -lt $timeout) { + if ((Test-Path $OUTPUT_LOG) -and + (Select-String -Path $OUTPUT_LOG -Pattern '^SUCCESS:streaming-uploader:sent 3 chunks for demo-document.txt$' -Quiet) -and + (Select-String -Path $OUTPUT_LOG -Pattern '^SUCCESS:streaming-receiver:received demo-document.txt with 103 bytes$' -Quiet)) { + return $true + } + + Start-Sleep -Milliseconds 500 + $elapsed += 0.5 + } + + return $false +} + +try { + Start-ExampleDependencies + '' | Set-Content -Path $OUTPUT_LOG + + $receiverProcess = Start-Process pwsh -ArgumentList @('-NoProfile', '-Command', "`$env:SC_EXAMPLES_QUEUE_NAME='$queueName'; dotnet run --project '$receiverProject' 2>&1 | Out-File -FilePath '$OUTPUT_LOG' -Append") -PassThru -NoNewWindow + + if (-not (Wait-ForReady)) { + throw 'Streaming receiver did not become ready within 30 seconds' + } + + $env:SC_EXAMPLES_ENDPOINT_NAME = $queueName + dotnet run --project $uploaderProject 2>&1 | Out-File -FilePath $OUTPUT_LOG -Append + Remove-Item Env:SC_EXAMPLES_ENDPOINT_NAME -ErrorAction SilentlyContinue + + if (-not (Wait-ForSuccess)) { + throw 'Streaming run did not produce the expected success lines within 30 seconds' + } +} +finally { + if ($null -ne $receiverProcess -and -not $receiverProcess.HasExited) { + Stop-Process -Id $receiverProcess.Id -Force -ErrorAction SilentlyContinue + $receiverProcess.WaitForExit() + } +} diff --git a/examples/Streaming/run.sh b/examples/Streaming/run.sh new file mode 100755 index 000000000..2dc0e9105 --- /dev/null +++ b/examples/Streaming/run.sh @@ -0,0 +1,77 @@ +#!/usr/bin/env bash +set -euo pipefail + +SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)" +source "$SCRIPT_DIR/../scripts/common.sh" + +OUTPUT_LOG="$SCRIPT_DIR/output.log" +RUN_ID=$(date +%s%N) +QUEUE_NAME="streaming-receiver-${RUN_ID}" +PIDS=() + +cleanup() { + for pid in "${PIDS[@]:-}"; do + kill "$pid" 2>/dev/null || true + done + + for pid in "${PIDS[@]:-}"; do + wait "$pid" 2>/dev/null || true + done +} + +trap cleanup EXIT + +wait_for_ready() { + local max_attempts=60 + local attempt=0 + + while [ $attempt -lt $max_attempts ]; do + if grep -q '^READY:streaming-receiver$' "$OUTPUT_LOG" 2>/dev/null; then + return 0 + fi + + sleep 0.5 + attempt=$((attempt + 1)) + done + + return 1 +} + +wait_for_success() { + local max_attempts=60 + local attempt=0 + + while [ $attempt -lt $max_attempts ]; do + if grep -q '^SUCCESS:streaming-uploader:sent 3 chunks for demo-document.txt$' "$OUTPUT_LOG" 2>/dev/null && + grep -q '^SUCCESS:streaming-receiver:received demo-document.txt with 103 bytes$' "$OUTPUT_LOG" 2>/dev/null; then + return 0 + fi + + sleep 0.5 + attempt=$((attempt + 1)) + done + + return 1 +} + +start_dependencies +prebuild_solution "$SCRIPT_DIR/Streaming.sln" +> "$OUTPUT_LOG" + +SC_EXAMPLES_QUEUE_NAME="$QUEUE_NAME" \ + dotnet run --no-build --project "$SCRIPT_DIR/src/ServiceConnect.Examples.Streaming.Receiver/ServiceConnect.Examples.Streaming.Receiver.csproj" >> "$OUTPUT_LOG" 2>&1 & +RECEIVER_PID=$! +PIDS+=("$RECEIVER_PID") + +if ! wait_for_ready; then + echo "ERROR: Streaming receiver did not become ready within 30 seconds" + exit 1 +fi + +SC_EXAMPLES_ENDPOINT_NAME="$QUEUE_NAME" \ + dotnet run --no-build --project "$SCRIPT_DIR/src/ServiceConnect.Examples.Streaming.Uploader/ServiceConnect.Examples.Streaming.Uploader.csproj" >> "$OUTPUT_LOG" 2>&1 + +if ! wait_for_success; then + echo "ERROR: Streaming run did not produce the expected success lines within 30 seconds" + exit 1 +fi diff --git a/examples/Streaming/src/ServiceConnect.Examples.Streaming.Contracts/DocumentUploaded.cs b/examples/Streaming/src/ServiceConnect.Examples.Streaming.Contracts/DocumentUploaded.cs new file mode 100644 index 000000000..28b67771d --- /dev/null +++ b/examples/Streaming/src/ServiceConnect.Examples.Streaming.Contracts/DocumentUploaded.cs @@ -0,0 +1,10 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.Streaming.Contracts; + +public sealed class DocumentUploaded(Guid correlationId) : Message(correlationId) +{ + public string FileName { get; init; } = string.Empty; + + public int TotalBytes { get; init; } +} diff --git a/examples/Streaming/src/ServiceConnect.Examples.Streaming.Contracts/ServiceConnect.Examples.Streaming.Contracts.csproj b/examples/Streaming/src/ServiceConnect.Examples.Streaming.Contracts/ServiceConnect.Examples.Streaming.Contracts.csproj new file mode 100644 index 000000000..02cd0ca30 --- /dev/null +++ b/examples/Streaming/src/ServiceConnect.Examples.Streaming.Contracts/ServiceConnect.Examples.Streaming.Contracts.csproj @@ -0,0 +1,5 @@ + + + + + diff --git a/examples/Streaming/src/ServiceConnect.Examples.Streaming.Receiver/DocumentUploadedHandler.cs b/examples/Streaming/src/ServiceConnect.Examples.Streaming.Receiver/DocumentUploadedHandler.cs new file mode 100644 index 000000000..a4244fcbe --- /dev/null +++ b/examples/Streaming/src/ServiceConnect.Examples.Streaming.Receiver/DocumentUploadedHandler.cs @@ -0,0 +1,15 @@ +using ServiceConnect.Examples.Streaming.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.Streaming.Receiver; + +public sealed class DocumentUploadedHandler : IStreamHandler +{ + public Task ExecuteAsync(DocumentUploaded message, IMessageBusReadStream stream, CancellationToken cancellationToken = default) + { + var bytes = stream.Read(); + ConsoleStatus.Success("streaming-receiver", $"received {message.FileName} with {bytes.Length} bytes"); + return Task.CompletedTask; + } +} diff --git a/examples/Streaming/src/ServiceConnect.Examples.Streaming.Receiver/Program.cs b/examples/Streaming/src/ServiceConnect.Examples.Streaming.Receiver/Program.cs new file mode 100644 index 000000000..a42d4b144 --- /dev/null +++ b/examples/Streaming/src/ServiceConnect.Examples.Streaming.Receiver/Program.cs @@ -0,0 +1,33 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.Streaming.Contracts; +using ServiceConnect.Examples.Streaming.Receiver; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Interfaces; + +var settings = ExampleSettingsLoader.Load(); +var queueName = Environment.GetEnvironmentVariable("SC_EXAMPLES_QUEUE_NAME") ?? "streaming-receiver"; + +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +var handlerReferences = new List +{ + new() { HandlerType = typeof(DocumentUploadedHandler), MessageType = typeof(DocumentUploaded) } +}; + +var services = new ServiceCollection(); +services.AddSingleton>(handlerReferences); +services.AddTransient, DocumentUploadedHandler>(); +services.AddExampleBus(settings, queueName); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); +await bus.StartConsumingAsync(); +ConsoleStatus.Ready("streaming-receiver"); +await Console.Out.FlushAsync(); +await Task.Delay(Timeout.InfiniteTimeSpan); diff --git a/examples/Streaming/src/ServiceConnect.Examples.Streaming.Receiver/ServiceConnect.Examples.Streaming.Receiver.csproj b/examples/Streaming/src/ServiceConnect.Examples.Streaming.Receiver/ServiceConnect.Examples.Streaming.Receiver.csproj new file mode 100644 index 000000000..b25cb1253 --- /dev/null +++ b/examples/Streaming/src/ServiceConnect.Examples.Streaming.Receiver/ServiceConnect.Examples.Streaming.Receiver.csproj @@ -0,0 +1,10 @@ + + + Exe + + + + + + + diff --git a/examples/Streaming/src/ServiceConnect.Examples.Streaming.Uploader/Program.cs b/examples/Streaming/src/ServiceConnect.Examples.Streaming.Uploader/Program.cs new file mode 100644 index 000000000..ca0a65bb6 --- /dev/null +++ b/examples/Streaming/src/ServiceConnect.Examples.Streaming.Uploader/Program.cs @@ -0,0 +1,42 @@ +using System.Text; +using Microsoft.Extensions.DependencyInjection; +using Newtonsoft.Json; +using ServiceConnect.Examples.Streaming.Contracts; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Interfaces; + +var settings = ExampleSettingsLoader.Load(); +var endpointName = Environment.GetEnvironmentVariable("SC_EXAMPLES_ENDPOINT_NAME") ?? "streaming-receiver"; + +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +var services = new ServiceCollection(); +services.AddSingleton>([]); +services.AddExampleBus(settings, "streaming-uploader"); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); + +var document = new DocumentUploaded(Guid.NewGuid()) +{ + FileName = "demo-document.txt", + TotalBytes = 56 +}; + +var payload = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(document)); +var chunkSize = payload.Length / 3; + +await using var stream = bus.CreateStream(endpointName); +await stream.WriteAsync(payload.AsMemory(0, chunkSize)); +await stream.WriteAsync(payload.AsMemory(chunkSize, chunkSize)); +await stream.WriteAsync(payload.AsMemory(chunkSize * 2, payload.Length - (chunkSize * 2))); +await stream.CloseAsync(); + +ConsoleStatus.Success("streaming-uploader", "sent 3 chunks for demo-document.txt"); +await Console.Out.FlushAsync(); diff --git a/examples/Streaming/src/ServiceConnect.Examples.Streaming.Uploader/ServiceConnect.Examples.Streaming.Uploader.csproj b/examples/Streaming/src/ServiceConnect.Examples.Streaming.Uploader/ServiceConnect.Examples.Streaming.Uploader.csproj new file mode 100644 index 000000000..03ecb7054 --- /dev/null +++ b/examples/Streaming/src/ServiceConnect.Examples.Streaming.Uploader/ServiceConnect.Examples.Streaming.Uploader.csproj @@ -0,0 +1,14 @@ + + + Exe + + + + + + + + + + + diff --git a/examples/StressHarness/README.md b/examples/StressHarness/README.md new file mode 100644 index 000000000..cceb8dbec --- /dev/null +++ b/examples/StressHarness/README.md @@ -0,0 +1,141 @@ +# Stress Harness + +## Overview + +Single-process harness that drives every ServiceConnect pattern across two `Bus` instances concurrently. Catches cross-tenant routing leaks between buses, shared static / singleton state escaping between tenants, deadlocks under sustained dispatch, lifecycle races around `Bus.DisposeAsync`, and memory leaks under continuous load. + +Unlike the per-pattern example projects under `examples/`, the harness is not a worked tutorial. It is an end-to-end driver that exercises the public surface in adversarial conditions and asserts framework invariants. Use it as the smoke test before tagging a release, or as the soak before promoting a behavioural change to the routing or filter pipelines. + +## Modes + +| Mode | What it does | Default duration | +|---|---|---| +| `smoke` | Run every pattern once in both directions (alpha to beta and beta to alpha). Fail-loud, CI-friendly. | ~30s | +| `soak` | Loop every pattern continuously for `--duration`; track GC memory baseline vs final and fail if growth exceeds `--memory-budget-mb`. | 5 min | +| `throughput` | Rate-controlled at `--rate` flows/sec/pattern; report p50/p95/p99 latency per pattern. | 5 min | + +## Prerequisites + +`docker compose -f docker-compose.yml up -d` from this directory. The compose file brings up RabbitMQ (5672 + 15672 management UI) and MongoDB (27017) with health checks. + +## Run This Example + +`bash run.sh` + +The runner brings the docker stack up, waits for both services to be healthy, runs the harness, and tears the stack down on exit. Configuration is environment-variable driven so the same script covers every mode: + +```bash +./run.sh # smoke, in-memory persistence +MODE=soak DURATION=00:02:00 ./run.sh # 2-minute soak +MODE=throughput RATE=50 DURATION=00:00:30 ./run.sh # rate-controlled throughput +PERSISTENCE=mongo ./run.sh # MongoDB-backed saga + aggregator +``` + +On Windows use `.\run.ps1`; the same environment-variable contract applies. + +## Run Manually + +`run.sh` is a thin shell over `dotnet run`. The full CLI surface: + +```text +dotnet run --project src/ServiceConnect.Examples.StressHarness -- \ + [--mode smoke|soak|throughput] # default: smoke + [--duration HH:MM:SS] # soak / throughput run length + [--rate ] # throughput: flows/sec/pattern + [--patterns p2p,pubsub,...] # default: every pattern + [--persistence inmemory|mongo] # default: inmemory + [--chaos none|docker] # default: none (docker requires --mode soak) + [--chaos-interval HH:MM:SS] # time between kill events (default 30s) + [--chaos-downtime HH:MM:SS] # time broker stays down (default 20s) + [--chaos-recovery-budget HH:MM:SS] # wait after duration before recovery check (default 60s) + [--broker amqp://localhost] + [--flow-timeout HH:MM:SS] + [--memory-budget-mb ] # soak budget (default 256 MB) + [--report-dir out/] +``` + +The default budget is calibrated for the standard 5-minute soak across all 14 patterns. A 5-minute run processes roughly 100 k flows; per-pattern result history, framework state, and RabbitMQ.Client buffers contribute around 133 MB of expected steady-state heap (~1.3 KB per flow). 256 MB gives that baseline comfortable headroom while still catching gross regressions. Longer soaks or higher-rate throughput runs will accumulate more in-flight state; raise the budget via `--memory-budget-mb` if the soak's flow assertions are green but the process-level memory check trips. + +## Output + +- `out/report.json` — structured per-pattern stats, per-bus counters, memory baseline/final, assertion outcomes, latency histograms in throughput mode, and (when `--chaos docker` was set) the chaos kill timeline and per-pattern window breakdown. Schema version pinned at `reportVersion: 3`. +- `out/report.md` — human-readable summary suitable for paste-into-a-PR. +- Exit code: + - `0` — every flow passed and every process-level assertion held. + - `1` — at least one flow failed or a process-level assertion fired. + - `2` — CLI or startup error (bad argument, broker unreachable, etc.). + +## What this harness catches + +- **Cross-tenant routing leaks** — handler dispatched on the wrong `Bus` instance. +- **Shared static / singleton state** — leakage across buses surfacing as wrong tenant on the receiving handler. +- **Deadlocks under sustained dispatch** — soak mode runs concurrent flows for the configured duration; a deadlock manifests as flow-timeout failures. +- **Lifecycle races** — `Bus.DisposeAsync` is invoked while flows are mid-dispatch; the lifecycle assertion confirms in-flight work completes or fails cleanly. +- **Memory leaks** — soak mode samples `GC.GetTotalMemory` at the start and end and fails if growth exceeds `--memory-budget-mb`. +- **Idempotency races** — a handler firing more than the expected count for a given flow id surfaces in the per-handler accounting. + +## Chaos mode + +Pass `--chaos docker` to a soak run to have the harness periodically stop and start the broker container while the soak runs: + +```bash +MODE=soak DURATION=00:05:00 CHAOS=docker ./run.sh +``` + +This exercises the framework's auto-recovery code paths (connection auto-recovery, channel restart, consumer-tag-change handling) — code that smoke and non-chaos soak runs can't reach. + +| Flag | Default | What it controls | +|---|---|---| +| `--chaos docker` | (off — defaults to `none`) | Enable chaos. Only supported with `--mode soak`. | +| `--chaos-interval` | `30s` | Time between kill events. | +| `--chaos-downtime` | `20s` | How long the broker stays down before restart. | +| `--chaos-recovery-budget` | `60s` | Wait after the soak's `--duration` ends before the recovery assertion fires. | + +### Durability contract under chaos + +The harness wires the transport for at-least-once delivery across a broker +restart by explicitly setting two flags on its `UseRabbitMQ` configuration: + +- `Durable = true` — queue declarations survive broker restart (the broker + reloads queue + binding metadata from disk on boot). +- `PublisherAcknowledgements = true` — `Bus.SendAsync` / `PublishAsync` + awaits the broker's confirm before completing, so a publish in flight + when the broker is killed surfaces as an exception to the caller rather + than a silent drop. + +Both values match the framework defaults; declaring them in the harness is +belt-and-braces against a future default change rotating chaos runs back +into silent-loss territory. Delivery-mode 2 (broker fsyncs each message +before ack'ing) is set unconditionally by the framework's +`OutboundHeaderBuilder` and needs no opt-in. + +### Assertion model + +**Hard (exit 1 if failed):** after the recovery budget elapses, both `Bus α` and `Bus β` report `IsConsuming == true`. If either remains unhealthy, the run fails. + +**Soft (reported, never fails the run):** per-pattern flow counts broken down by chaos window (`pre-chaos`, `during-chaos`, `in-recovery`, `post-chaos`), kill-event timeline in `out/report.md`. The "under-handled flow count" (flows the driver sent that hadn't completed by end-of-soak) measures in-flight loss at broker death — messages whose `SendAsync` returned before the broker accepted them, or whose handler was mid-dispatch when the broker died. A non-zero count is a measurement, not a recovery failure; the hard `IsConsuming` assertion is the recovery-success signal. + +### Scope + +This mode exercises single-broker restart only. Multi-node cluster failover (where the AMQP client transparently re-targets a surviving node) is a deferred follow-up — `docker-compose.cluster.yml` ships in the repo for that work but isn't used by this mode. + +## Pattern coverage + +| Pattern | Driver | +|---|---| +| PointToPoint | `PointToPointDriver` | +| PublishSubscribe | `PublishSubscribeDriver` | +| RequestReply | `RequestReplyDriver` | +| CompetingConsumers | `CompetingConsumersDriver` | +| ContentBasedRouting | `ContentBasedRoutingDriver` | +| PolymorphicMessages | `PolymorphicMessagesDriver` | +| Filters | `FiltersDriver` | +| ProcessManager | `ProcessManagerDriver` (requires persistence) | +| Aggregator | `AggregatorDriver` (requires persistence) | +| ScatterGather | `ScatterGatherDriver` | +| RoutingSlip | `RoutingSlipDriver` | +| Streaming | `StreamingDriver` | +| CustomFilterAndMiddleware | `CustomFilterAndMiddlewareDriver` | +| Telemetry | `TelemetryDriver` | + +Fourteen patterns x two directions = 28 flows per smoke run. diff --git a/examples/StressHarness/StressHarness.slnx b/examples/StressHarness/StressHarness.slnx new file mode 100644 index 000000000..01c3e0b94 --- /dev/null +++ b/examples/StressHarness/StressHarness.slnx @@ -0,0 +1,15 @@ + + + + + + + + + + + + + + + diff --git a/examples/StressHarness/docker-compose.cluster.yml b/examples/StressHarness/docker-compose.cluster.yml new file mode 100644 index 000000000..f07f70e74 --- /dev/null +++ b/examples/StressHarness/docker-compose.cluster.yml @@ -0,0 +1,59 @@ +services: + rabbit1: + image: rabbitmq:3.13-management + hostname: rabbit1 + environment: + RABBITMQ_ERLANG_COOKIE: 'stress-harness-cluster' + RABBITMQ_DEFAULT_USER: guest + RABBITMQ_DEFAULT_PASS: guest + ports: + - "5672:5672" + - "15672:15672" + healthcheck: + test: ["CMD", "rabbitmqctl", "status"] + interval: 5s + timeout: 5s + retries: 10 + rabbit2: + image: rabbitmq:3.13-management + hostname: rabbit2 + environment: + RABBITMQ_ERLANG_COOKIE: 'stress-harness-cluster' + RABBITMQ_DEFAULT_USER: guest + RABBITMQ_DEFAULT_PASS: guest + depends_on: [rabbit1] + command: > + bash -c " + rabbitmq-server & + until rabbitmqctl status >/dev/null 2>&1; do sleep 1; done; + rabbitmqctl stop_app; + rabbitmqctl reset; + rabbitmqctl join_cluster rabbit@rabbit1; + rabbitmqctl start_app; + wait" + rabbit3: + image: rabbitmq:3.13-management + hostname: rabbit3 + environment: + RABBITMQ_ERLANG_COOKIE: 'stress-harness-cluster' + RABBITMQ_DEFAULT_USER: guest + RABBITMQ_DEFAULT_PASS: guest + depends_on: [rabbit1, rabbit2] + command: > + bash -c " + rabbitmq-server & + until rabbitmqctl status >/dev/null 2>&1; do sleep 1; done; + rabbitmqctl stop_app; + rabbitmqctl reset; + rabbitmqctl join_cluster rabbit@rabbit1; + rabbitmqctl start_app; + wait" + mongo: + image: mongo:7 + ports: + - "27017:27017" + healthcheck: + test: ["CMD", "mongosh", "--quiet", "--eval", "db.adminCommand('ping')"] + interval: 5s + timeout: 5s + retries: 10 diff --git a/examples/StressHarness/docker-compose.yml b/examples/StressHarness/docker-compose.yml new file mode 100644 index 000000000..abc54a3d5 --- /dev/null +++ b/examples/StressHarness/docker-compose.yml @@ -0,0 +1,29 @@ +services: + rabbitmq: + image: rabbitmq:3.13-management + # Pin the hostname so Erlang's net_distribution layer has a stable, valid + # node name. Without this, Docker assigns the container's hash as hostname; + # on some host configurations the resulting node name fails the prelaunch + # auth-cookie check with EACCES because the synthetic hostname isn't + # resolvable in the container's /etc/hosts. The explicit hostname bypasses + # that whole class of startup failures. + hostname: rabbitmq + container_name: stress-harness-rabbit + ports: + - "5672:5672" + - "15672:15672" + healthcheck: + test: ["CMD", "rabbitmqctl", "status"] + interval: 5s + timeout: 5s + retries: 10 + mongo: + image: mongo:7 + container_name: stress-harness-mongo + ports: + - "27017:27017" + healthcheck: + test: ["CMD", "mongosh", "--quiet", "--eval", "db.adminCommand('ping')"] + interval: 5s + timeout: 5s + retries: 10 diff --git a/examples/StressHarness/run.ps1 b/examples/StressHarness/run.ps1 new file mode 100644 index 000000000..58433e338 --- /dev/null +++ b/examples/StressHarness/run.ps1 @@ -0,0 +1,21 @@ +$ErrorActionPreference = 'Stop' +Set-Location -Path (Split-Path -Parent $MyInvocation.MyCommand.Path) +. "..\scripts\common.ps1" + +$Mode = $env:MODE; if (-not $Mode) { $Mode = 'smoke' } +$Duration = $env:DURATION; if (-not $Duration) { $Duration = '5m' } +$Rate = $env:RATE; if (-not $Rate) { $Rate = '100' } +$Persistence = $env:PERSISTENCE; if (-not $Persistence) { $Persistence = 'inmemory' } + +try { + docker compose -p stress-harness up -d + Wait-Rabbit -Host 'localhost' -Port 5672 + if ($Persistence -eq 'mongo') { Wait-Mongo -Host 'localhost' -Port 27017 } + dotnet run --project src\ServiceConnect.Examples.StressHarness\ServiceConnect.Examples.StressHarness.csproj -- ` + --mode $Mode ` + --duration $Duration ` + --rate $Rate ` + --persistence $Persistence +} finally { + docker compose -p stress-harness down --remove-orphans | Out-Null +} diff --git a/examples/StressHarness/run.sh b/examples/StressHarness/run.sh new file mode 100755 index 000000000..23cb841b5 --- /dev/null +++ b/examples/StressHarness/run.sh @@ -0,0 +1,31 @@ +#!/usr/bin/env bash +set -euo pipefail + +SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)" +cd "$SCRIPT_DIR" + +# shellcheck source=../scripts/common.sh +source "../scripts/common.sh" + +MODE="${MODE:-smoke}" +DURATION="${DURATION:-5m}" +RATE="${RATE:-100}" +PERSISTENCE="${PERSISTENCE:-inmemory}" +CHAOS="${CHAOS:-none}" + +trap 'docker compose -p stress-harness down --remove-orphans >/dev/null 2>&1 || true' EXIT + +docker compose -p stress-harness up -d +wait_for_rabbit "localhost" "5672" +if [ "$PERSISTENCE" = "mongo" ]; then + wait_for_mongo "localhost" "27017" +fi + +dotnet run \ + --project src/ServiceConnect.Examples.StressHarness/ServiceConnect.Examples.StressHarness.csproj \ + -- \ + --mode "$MODE" \ + --duration "$DURATION" \ + --rate "$RATE" \ + --persistence "$PERSISTENCE" \ + --chaos "$CHAOS" diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Chaos/DockerComposeBrokerChaos.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Chaos/DockerComposeBrokerChaos.cs new file mode 100644 index 000000000..331a0434c --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Chaos/DockerComposeBrokerChaos.cs @@ -0,0 +1,60 @@ +using System.Globalization; + +namespace ServiceConnect.Examples.StressHarness.Chaos; + +/// +/// implementation backed by docker compose +/// stop / docker compose start. The compose project is +/// addressed by its file path and project name so multiple harness runs +/// can target distinct stacks on the same host without colliding. +/// Network partition is intentionally not implemented; the surface is +/// reserved for a future iteration that can layer tc/iptables +/// or a userland TCP proxy on top of the same seam. +/// +/// +/// is forwarded to docker compose stop +/// as -t <seconds>. Docker's default SIGTERM-to-SIGKILL grace +/// of 10 s is too short for RabbitMQ to flush in-memory delivered-but-unacked +/// state plus its queue index at the throughput rates the chaos soak drives; +/// extending the grace lets the broker reach a clean shutdown rather than +/// being SIGKILL'd mid-flush, which would otherwise lose any messages still +/// in RAM. Integer seconds because both docker and RabbitMQ honour second +/// granularity for shutdown timeouts. +/// +public sealed class DockerComposeBrokerChaos(string composeFile, string projectName, IProcessRunner runner, TimeSpan stopTimeout) : IBrokerChaos +{ + public Task KillNodeAsync(string nodeName, CancellationToken cancellationToken) => + RunComposeAsync("stop", nodeName, cancellationToken); + + public Task RestartNodeAsync(string nodeName, CancellationToken cancellationToken) => + RunComposeAsync("start", nodeName, cancellationToken); + + public Task PartitionAsync(string nodeName, TimeSpan duration, CancellationToken cancellationToken) => + throw new NotImplementedException( + "Network partition is out of scope for the first chaos build; use KillNodeAsync + RestartNodeAsync."); + + private async Task RunComposeAsync(string verb, string nodeName, CancellationToken cancellationToken) + { + // Only `stop` accepts `-t`; `start` would reject the flag. The stop + // grace is forwarded as integer seconds (the only granularity docker + // and RabbitMQ both honour) so the broker has enough time to flush + // its queue index and unacked-delivery state to disk before SIGKILL. + string[] args; + if (string.Equals(verb, "stop", StringComparison.Ordinal)) + { + var stopSeconds = ((int)stopTimeout.TotalSeconds).ToString(CultureInfo.InvariantCulture); + args = ["compose", "-f", composeFile, "-p", projectName, "stop", "-t", stopSeconds, nodeName]; + } + else + { + args = ["compose", "-f", composeFile, "-p", projectName, verb, nodeName]; + } + + var exitCode = await runner.RunAsync("docker", args, cancellationToken); + if (exitCode != 0) + { + throw new InvalidOperationException(string.Create(CultureInfo.InvariantCulture, + $"docker compose {verb} {nodeName} exited {exitCode}")); + } + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Chaos/IBrokerChaos.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Chaos/IBrokerChaos.cs new file mode 100644 index 000000000..6a8da96e0 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Chaos/IBrokerChaos.cs @@ -0,0 +1,20 @@ +namespace ServiceConnect.Examples.StressHarness.Chaos; + +/// +/// Contract for injecting broker-side faults — node kills, restarts, and +/// network partitions — into a stress run. The default implementation is +/// : chaos is opt-in and the harness ships +/// without any failover behaviour wired up by default. Concrete chaos +/// implementations (for example ) +/// translate these abstract operations into the underlying orchestration +/// commands (docker compose stop/start, iptables, etc.) that produce the +/// requested broker state. +/// +public interface IBrokerChaos +{ + Task KillNodeAsync(string nodeName, CancellationToken cancellationToken); + + Task RestartNodeAsync(string nodeName, CancellationToken cancellationToken); + + Task PartitionAsync(string nodeName, TimeSpan duration, CancellationToken cancellationToken); +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Chaos/IProcessRunner.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Chaos/IProcessRunner.cs new file mode 100644 index 000000000..e7ca2d1b1 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Chaos/IProcessRunner.cs @@ -0,0 +1,13 @@ +namespace ServiceConnect.Examples.StressHarness.Chaos; + +/// +/// Seam for shelling out to an external process. The default runtime +/// implementation () wraps +/// ; unit tests substitute a +/// recording fake so the chaos types can be exercised without a Docker +/// daemon present. +/// +public interface IProcessRunner +{ + Task RunAsync(string fileName, IReadOnlyList arguments, CancellationToken cancellationToken); +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Chaos/NoopBrokerChaos.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Chaos/NoopBrokerChaos.cs new file mode 100644 index 000000000..6acf76260 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Chaos/NoopBrokerChaos.cs @@ -0,0 +1,18 @@ +namespace ServiceConnect.Examples.StressHarness.Chaos; + +/// +/// Default registration: every operation +/// completes immediately without touching the broker. Wired in by +/// Program.cs as the singleton implementation so the CLI's +/// --chaos none path (the only accepted value today) resolves +/// to a no-op without forcing every call-site to null-check the chaos +/// dependency. +/// +public sealed class NoopBrokerChaos : IBrokerChaos +{ + public Task KillNodeAsync(string nodeName, CancellationToken cancellationToken) => Task.CompletedTask; + + public Task RestartNodeAsync(string nodeName, CancellationToken cancellationToken) => Task.CompletedTask; + + public Task PartitionAsync(string nodeName, TimeSpan duration, CancellationToken cancellationToken) => Task.CompletedTask; +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Chaos/ServiceConnect.Examples.StressHarness.Chaos.csproj b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Chaos/ServiceConnect.Examples.StressHarness.Chaos.csproj new file mode 100644 index 000000000..4b9e7fe9b --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Chaos/ServiceConnect.Examples.StressHarness.Chaos.csproj @@ -0,0 +1,6 @@ + + + ServiceConnect.Examples.StressHarness.Chaos + ServiceConnect.Examples.StressHarness.Chaos + + diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Chaos/SystemProcessRunner.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Chaos/SystemProcessRunner.cs new file mode 100644 index 000000000..a1c273aa2 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Chaos/SystemProcessRunner.cs @@ -0,0 +1,56 @@ +using System.Diagnostics; +using System.Globalization; + +namespace ServiceConnect.Examples.StressHarness.Chaos; + +/// +/// Default implementation. Spawns the +/// requested binary via , +/// propagates cancellation by killing the process tree, and returns the +/// child's exit code. stdout/stderr are redirected (so the child does +/// not block on a full console pipe) but discarded — failure surfaces +/// via the non-zero exit code returned to the caller. +/// +public sealed class SystemProcessRunner : IProcessRunner +{ + public async Task RunAsync(string fileName, IReadOnlyList arguments, CancellationToken cancellationToken) + { + var psi = new ProcessStartInfo + { + FileName = fileName, + RedirectStandardOutput = true, + RedirectStandardError = true, + UseShellExecute = false, + }; + foreach (var arg in arguments) + { + psi.ArgumentList.Add(arg); + } + + using var process = Process.Start(psi) + ?? throw new InvalidOperationException( + string.Create(CultureInfo.InvariantCulture, $"failed to start process {fileName}")); + + // Cancellation translates to a hard kill of the entire process tree — + // docker compose spawns child processes whose lifetime exceeds the + // CLI invocation, and a polite SIGTERM to the top-level binary alone + // would leak those children. + await using var registration = cancellationToken.Register(() => + { + try + { + if (!process.HasExited) + { + process.Kill(entireProcessTree: true); + } + } + catch + { + // process already exited between HasExited and Kill — benign race + } + }); + + await process.WaitForExitAsync(cancellationToken); + return process.ExitCode; + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/DedupedMessage.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/DedupedMessage.cs new file mode 100644 index 000000000..c108d9137 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/DedupedMessage.cs @@ -0,0 +1,25 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Contracts.Messages; + +/// +/// Drives the full inbound pipeline-ordering pattern. A +/// BeforeConsumingFilters-stage filter, an +/// wrapping the dispatch, the matching IMessageHandler, and an +/// OnConsumedSuccessfullyFilters-stage filter each append a marker into a +/// shared trail. The driver asserts the trail is +/// [before, mid-enter, handler, mid-exit, on-success]. +/// +/// +/// echoes the flow id as a string so the driver can payload-check +/// alongside the trail-ordering assertion (catches a class of serialisation regressions +/// where the body arrives empty but the headers and pipeline still produce a +/// well-formed trail). +/// +public sealed class DedupedMessage(Guid correlationId) : Message(correlationId) +{ + /// + /// Flow-identifier discriminator echoed back on the receiver for the driver's payload check. + /// + public string Token { get; init; } = string.Empty; +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/DocumentUploaded.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/DocumentUploaded.cs new file mode 100644 index 000000000..b640964ad --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/DocumentUploaded.cs @@ -0,0 +1,44 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Contracts.Messages; + +/// +/// Control message carried by the stress harness's streaming pattern. The driver +/// JSON-serialises one of these and sends the resulting bytes in chunks through +/// ; the framework +/// reassembles the bytes and deserialises them back into a +/// on the receiver side, also handing the raw byte buffer to the +/// via +/// for integrity checks. +/// +/// +/// +/// carries the flow id because the framework's +/// stream API exposes no caller-visible header pathway — +/// only +/// accepts a byte buffer and a cancellation token, and the producer stamps the +/// reserved headers (SequenceId / PacketNumber / FullTypeName) from internal state +/// rather than from caller-supplied options. The aggregator driver uses the same +/// body-only correlation strategy for the same reason. +/// +/// +/// carries deterministic bytes the driver fills to inflate +/// the serialised message past a single transport packet, so the chunked write +/// path is exercised end-to-end rather than fitting the whole payload in one +/// packet. The hash of the serialised JSON is what the driver and the receiver +/// compare — both ends compute SHA-256 of the wire bytes. +/// +/// +public sealed class DocumentUploaded(Guid correlationId) : Message(correlationId) +{ + /// File name echoed in the receiver's observation log. + public string FileName { get; init; } = string.Empty; + + /// + /// Deterministic payload bytes filled by the driver to inflate the serialised + /// message length past a single transport packet. The receiver does not inspect + /// the contents directly — the integrity assertion runs over the full + /// stream-reassembled byte buffer, of which this property is the majority. + /// + public byte[] Payload { get; init; } = []; +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/DomainEvent.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/DomainEvent.cs new file mode 100644 index 000000000..32df2cb7c --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/DomainEvent.cs @@ -0,0 +1,12 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Contracts.Messages; + +/// +/// Abstract base for the polymorphic-messages driver's event hierarchy. The driver +/// publishes concrete derived events ( / +/// ) and a single +/// IMessageHandler<DomainEvent> registration catches both via the +/// dispatcher's base-type walk. +/// +public abstract class DomainEvent(Guid correlationId) : Message(correlationId); diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/FilteredMessage.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/FilteredMessage.cs new file mode 100644 index 000000000..356f163fb --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/FilteredMessage.cs @@ -0,0 +1,25 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Contracts.Messages; + +/// +/// Drives the filter-ordering pattern. A -stage filter +/// records its own execution into a shared trail before the message reaches the matching +/// IMessageHandler, which then records its own marker; the driver asserts the trail +/// contains the filter entry strictly before the handler entry. +/// +/// +/// +/// echoes the flow id as a string so the driver can payload-check +/// alongside the trail-ordering assertion (catches a class of serialisation regressions +/// where the body arrives empty but the headers and filter pipeline still produce a +/// well-formed trail). +/// +/// +public sealed class FilteredMessage(Guid correlationId) : Message(correlationId) +{ + /// + /// Flow-identifier discriminator echoed back on the receiver for the driver's payload check. + /// + public string Token { get; init; } = string.Empty; +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/OrderPlacedEvent.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/OrderPlacedEvent.cs new file mode 100644 index 000000000..f204ef211 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/OrderPlacedEvent.cs @@ -0,0 +1,18 @@ +namespace ServiceConnect.Examples.StressHarness.Contracts.Messages; + +/// +/// Concrete published by the polymorphic-messages driver's +/// first send. Distinct CLR type so RabbitMQ routes through a type-derived exchange of +/// its own — the bus binds the receiver queue to both this exchange and +/// 's exchange, but a single base-type handler catches +/// both deliveries. +/// +public sealed class OrderPlacedEvent(Guid correlationId) : DomainEvent(correlationId) +{ + /// + /// Order identifier carried end-to-end. The driver sets it to the flow id so the + /// payload remains correlatable independently of the broker's header propagation + /// path. + /// + public string OrderId { get; init; } = string.Empty; +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/OrderShippedEvent.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/OrderShippedEvent.cs new file mode 100644 index 000000000..d9b358791 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/OrderShippedEvent.cs @@ -0,0 +1,18 @@ +namespace ServiceConnect.Examples.StressHarness.Contracts.Messages; + +/// +/// Concrete published by the polymorphic-messages driver's +/// second send. Distinct CLR type so RabbitMQ routes through a type-derived exchange of +/// its own — the bus binds the receiver queue to both this exchange and +/// 's exchange, but a single base-type handler catches +/// both deliveries. +/// +public sealed class OrderShippedEvent(Guid correlationId) : DomainEvent(correlationId) +{ + /// + /// Shipping identifier carried end-to-end. The driver sets it to the flow id so the + /// payload remains correlatable independently of the broker's header propagation + /// path. + /// + public string ShippingId { get; init; } = string.Empty; +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/P2pPing.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/P2pPing.cs new file mode 100644 index 000000000..be23a15a0 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/P2pPing.cs @@ -0,0 +1,23 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Contracts.Messages; + +/// +/// Point-to-point ping carried by the stress harness's first end-to-end flow. +/// +/// +/// +/// The CorrelationId base-class property carries the flow identifier so the message +/// is correlatable end-to-end without parsing headers. repeats the same +/// id as a string so the driver can echo-check the payload independently of the broker's +/// header propagation path (catches a class of serialisation regressions where the body +/// arrives empty but the headers route correctly). +/// +/// +public sealed class P2pPing(Guid correlationId) : Message(correlationId) +{ + /// + /// Flow-identifier discriminator echoed back on the receiver for the driver's payload check. + /// + public string Token { get; init; } = string.Empty; +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/PremiumOrder.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/PremiumOrder.cs new file mode 100644 index 000000000..289414210 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/PremiumOrder.cs @@ -0,0 +1,19 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Contracts.Messages; + +/// +/// High-priority order routed to PremiumOrderHandler in the +/// content-based-routing driver. Distinct CLR type from +/// so the framework's type-derived fanout exchange routes each variant to its own +/// handler — the driver's assertion is that the type-specific handlers each fire +/// for the matching publish, with no cross-leakage. +/// +public sealed class PremiumOrder(Guid correlationId) : Message(correlationId) +{ + /// + /// Customer identifier echoed end-to-end. The driver sets it to the flow id so + /// the payload remains correlatable independently of the broker's header path. + /// + public string CustomerId { get; init; } = string.Empty; +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/PubSubEvent.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/PubSubEvent.cs new file mode 100644 index 000000000..26126dbb2 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/PubSubEvent.cs @@ -0,0 +1,22 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Contracts.Messages; + +/// +/// Pub/sub fan-out event carried by the stress harness's publish-subscribe flow. +/// +/// +/// Both buses bind a queue to the shared type-derived fanout exchange, so every +/// from one bus is delivered +/// to both subscribers. The driver records exactly one expected invocation and the +/// handler suppresses the echo to its own bus by comparing the OriginBus header +/// to the bus tag stamped at handler construction. +/// +public sealed class PubSubEvent(Guid correlationId) : Message(correlationId) +{ + /// + /// Logical topic label echoed end-to-end. The driver sets it to the flow id so the + /// payload check is independent of the broker's header-propagation path. + /// + public string Topic { get; init; } = string.Empty; +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/QuoteRequest.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/QuoteRequest.cs new file mode 100644 index 000000000..e4f8929c8 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/QuoteRequest.cs @@ -0,0 +1,18 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Contracts.Messages; + +/// +/// Request half of the stress harness's request-reply pattern. The driver awaits the +/// matching via +/// rather than the per-handler signal, so the reply itself is the synchronisation point. +/// +public sealed class QuoteRequest(Guid correlationId) : Message(correlationId) +{ + /// + /// Product identifier echoed back in the response. Driver sets it to the flow id so + /// the payload remains correlatable end-to-end independently of the request-reply + /// header propagation path. + /// + public string ProductId { get; init; } = string.Empty; +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/QuoteResponse.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/QuoteResponse.cs new file mode 100644 index 000000000..a78886a9a --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/QuoteResponse.cs @@ -0,0 +1,17 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Contracts.Messages; + +/// +/// Reply half of the stress harness's request-reply pattern. The handler constructs +/// this with the request's correlation id so +/// can route the reply back to the originating call. +/// +public sealed class QuoteResponse(Guid correlationId) : Message(correlationId) +{ + /// + /// Quoted price. Fixed at handler-construction so the driver can assert the + /// reply-content path is intact alongside the correlation-id check. + /// + public decimal Price { get; init; } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/SagaCompleted.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/SagaCompleted.cs new file mode 100644 index 000000000..6a625a547 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/SagaCompleted.cs @@ -0,0 +1,15 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Contracts.Messages; + +/// +/// Final message of the process-manager driver's three-stage saga. Correlates +/// to the persisted state under ; the +/// handler marks the saga's stage counter as terminal so the driver can verify +/// the full progression Started → Intermediate → Completed. +/// +public sealed class SagaCompleted(Guid correlationId) : Message(correlationId) +{ + /// Flow-identifier discriminator echoed for the driver's payload check. + public string Token { get; init; } = string.Empty; +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/SagaData.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/SagaData.cs new file mode 100644 index 000000000..72fca58cb --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/SagaData.cs @@ -0,0 +1,22 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Contracts.Messages; + +/// +/// Persisted state for the process-manager driver's three-stage saga. +/// ratchets from 0 → 1 → 2 → 3 as each message arrives, +/// so the driver can assert the data was correlated, mutated, and progressed +/// to the final stage across distinct messages sharing one correlation id. +/// +/// +/// The class is mutable (settable properties + parameterless constructor) because +/// the framework's IProcessManagerData contract requires new() and +/// the dispatcher mutates instances in place between persistence reads and writes. +/// +public sealed class SagaData : IProcessManagerData +{ + public Guid CorrelationId { get; set; } + + /// Monotonically-advancing stage counter — 1 for Started, 2 for Intermediate, 3 for Completed. + public int Stage { get; set; } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/SagaIntermediate.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/SagaIntermediate.cs new file mode 100644 index 000000000..f3151f965 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/SagaIntermediate.cs @@ -0,0 +1,15 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Contracts.Messages; + +/// +/// Second message of the process-manager driver's three-stage saga. Correlates +/// to the persisted state established by via +/// ; the handler mutates the state's stage +/// counter to record the transition. +/// +public sealed class SagaIntermediate(Guid correlationId) : Message(correlationId) +{ + /// Flow-identifier discriminator echoed for the driver's payload check. + public string Token { get; init; } = string.Empty; +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/SagaStarted.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/SagaStarted.cs new file mode 100644 index 000000000..dfe824e05 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/SagaStarted.cs @@ -0,0 +1,15 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Contracts.Messages; + +/// +/// First message of the process-manager driver's three-stage saga. Establishes +/// the persisted state instance under ; +/// subsequent stages reuse the same correlation id to look up and mutate the +/// stored data. +/// +public sealed class SagaStarted(Guid correlationId) : Message(correlationId) +{ + /// Flow-identifier discriminator echoed for the driver's payload check. + public string Token { get; init; } = string.Empty; +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/SearchRequest.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/SearchRequest.cs new file mode 100644 index 000000000..6dcd9009b --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/SearchRequest.cs @@ -0,0 +1,21 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Contracts.Messages; + +/// +/// Request half of the stress harness's scatter-gather pattern. The driver +/// publishes one of these via , +/// which fans the message out across every bus subscribed to 's +/// type-fanout exchange — both alpha and beta receive one delivery, each handler +/// replies through , +/// and the driver counts the assembled replies against ExpectedReplyCount = 2. +/// +public sealed class SearchRequest(Guid correlationId) : Message(correlationId) +{ + /// + /// Free-text query field echoed in the response. Driver sets it to the flow id so + /// the payload remains correlatable end-to-end alongside the framework's + /// request-message-id header machinery. + /// + public string Query { get; init; } = string.Empty; +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/SearchResponse.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/SearchResponse.cs new file mode 100644 index 000000000..fa58c6dfe --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/SearchResponse.cs @@ -0,0 +1,27 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Contracts.Messages; + +/// +/// Reply half of the stress harness's scatter-gather pattern. Each subscriber bus +/// constructs one of these from the inbound +/// so the framework's request-reply manager can match the reply back to the +/// originating +/// callback. identifies which bus produced the reply so +/// the driver can assert the publish fanout reached both subscribers. +/// +public sealed class SearchResponse(Guid correlationId) : Message(correlationId) +{ + /// + /// Identifier set by the handler to its bus tag ("alpha" / "beta") + /// so the driver can verify the publish reached both buses by checking the + /// distinct values across the collected reply set. + /// + public string CatalogName { get; init; } = string.Empty; + + /// + /// Per-reply payload echo, fixed at handler-construction so the driver can + /// assert the reply-content path is intact alongside the catalog-name check. + /// + public string ResultId { get; init; } = string.Empty; +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/SlipOrder.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/SlipOrder.cs new file mode 100644 index 000000000..84b1ba8af --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/SlipOrder.cs @@ -0,0 +1,26 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Contracts.Messages; + +/// +/// Message carried through the stress harness's routing-slip pattern. The driver +/// posts one of these via +/// with an ordered destination list; the framework's +/// HandlerProcessor.ForwardRoutingSlipAsync reads the encoded slip from the +/// inbound headers after each hop's handler runs and forwards the message along +/// to the next destination in the slip. +/// +/// +/// The slip itself lives in the message envelope (HeaderKeys.RoutingSlip); +/// this body only carries the order identifier so a per-flow observation log can +/// record the handler arrivals in order without coupling to envelope headers. +/// +public sealed class SlipOrder(Guid correlationId) : Message(correlationId) +{ + /// + /// Business identifier echoed in the trail observations. Driver sets it to the + /// flow id so the per-bus arrival log remains correlatable to the orchestrator's + /// flow accounting independently of the framework's correlation-id header. + /// + public string OrderId { get; init; } = string.Empty; +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/StandardOrder.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/StandardOrder.cs new file mode 100644 index 000000000..ffab7c139 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/StandardOrder.cs @@ -0,0 +1,19 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Contracts.Messages; + +/// +/// Standard-priority order routed to StandardOrderHandler in the +/// content-based-routing driver. Distinct CLR type from +/// so the framework's type-derived fanout exchange routes each variant to its own +/// handler — the driver's assertion is that the type-specific handlers each fire +/// for the matching publish, with no cross-leakage. +/// +public sealed class StandardOrder(Guid correlationId) : Message(correlationId) +{ + /// + /// Customer identifier echoed end-to-end. The driver sets it to the flow id so + /// the payload remains correlatable independently of the broker's header path. + /// + public string CustomerId { get; init; } = string.Empty; +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/TelemetrySlice.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/TelemetrySlice.cs new file mode 100644 index 000000000..c65af5097 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/TelemetrySlice.cs @@ -0,0 +1,14 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Contracts.Messages; + +/// +/// Single item batched by the aggregator driver. Inherits +/// so the framework's aggregator routing applies ( +/// constraint T : Message). +/// +public sealed class TelemetrySlice(Guid correlationId) : Message(correlationId) +{ + /// Integer payload — summed by the aggregator for the driver's batch-size assertion. + public int Value { get; init; } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/TracedEvent.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/TracedEvent.cs new file mode 100644 index 000000000..8694ebed1 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/TracedEvent.cs @@ -0,0 +1,26 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Contracts.Messages; + +/// +/// Drives the telemetry pattern. Published on the sender bus with +/// wired into both buses' pipelines so the framework +/// emits a publish-side Producer activity and a consume-side Consumer activity +/// for each flow. An in-process ActivityListener captures every span the +/// framework's ServiceConnectActivitySource emits; the driver asserts at +/// least one activity carrying this flow's correlation id was recorded. +/// +/// +/// echoes the flow id as a string so the driver can +/// payload-check alongside the activity assertion (catches a class of +/// serialisation regressions where the body arrives empty but the spans still +/// emit because the headers route correctly). +/// +public sealed class TracedEvent(Guid correlationId) : Message(correlationId) +{ + /// + /// Logical topic label echoed end-to-end. The driver sets it to the flow id so the + /// payload check is independent of the broker's header-propagation path. + /// + public string Topic { get; init; } = string.Empty; +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/WorkItem.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/WorkItem.cs new file mode 100644 index 000000000..93f332ad3 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/Messages/WorkItem.cs @@ -0,0 +1,26 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Contracts.Messages; + +/// +/// Work unit sent through the competing-consumers driver's batch send. The driver +/// publishes N items to the receiver's queue and asserts that both registered +/// IMessageHandler<WorkItem> instances saw at least one delivery. +/// +/// +/// +/// The CorrelationId base-class property carries the flow identifier so every +/// item in the batch correlates back to the same accounting record. +/// disambiguates individual items within the batch — useful when inspecting broker +/// captures during a failure investigation, even though the assertion itself only +/// inspects the per-handler counter table. +/// +/// +public sealed class WorkItem(Guid correlationId) : Message(correlationId) +{ + /// + /// Per-batch sequence number assigned by the driver (1..N). Aids broker-capture + /// correlation when reproducing a partial-fanout failure. + /// + public int Sequence { get; init; } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/ServiceConnect.Examples.StressHarness.Contracts.csproj b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/ServiceConnect.Examples.StressHarness.Contracts.csproj new file mode 100644 index 000000000..caa0badeb --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Contracts/ServiceConnect.Examples.StressHarness.Contracts.csproj @@ -0,0 +1,9 @@ + + + ServiceConnect.Examples.StressHarness.Contracts + ServiceConnect.Examples.StressHarness.Contracts + + + + + diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Assertions/CrossTenantAssertionsTests.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Assertions/CrossTenantAssertionsTests.cs new file mode 100644 index 000000000..9e0923725 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Assertions/CrossTenantAssertionsTests.cs @@ -0,0 +1,59 @@ +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Patterns; +using Xunit; + +namespace ServiceConnect.Examples.StressHarness.Tests.Assertions; + +public class CrossTenantAssertionsTests +{ + [Fact] + public void HandlerInvokedOnExpectedBus_NoFailure() + { + var headers = new Dictionary + { + [StressHeaders.OriginBus] = "alpha", + [StressHeaders.FlowId] = Guid.NewGuid().ToString("N"), + [StressHeaders.Pattern] = "p2p", + }; + + var result = CrossTenantAssertions.Check( + headers, + expectedReceiver: BusIdentity.Beta, + actualBusTag: "beta"); + + Assert.True(result.Ok); + } + + [Fact] + public void HandlerInvokedOnWrongBus_RecordsFailure() + { + var headers = new Dictionary + { + [StressHeaders.OriginBus] = "alpha", + [StressHeaders.FlowId] = Guid.NewGuid().ToString("N"), + [StressHeaders.Pattern] = "p2p", + }; + + var result = CrossTenantAssertions.Check( + headers, + expectedReceiver: BusIdentity.Beta, + actualBusTag: "alpha"); + + Assert.False(result.Ok); + Assert.Contains("expected receiver 'beta' but handler ran on 'alpha'", result.Failure, StringComparison.OrdinalIgnoreCase); + } + + [Fact] + public void MissingOriginBusHeader_RecordsFailure() + { + var headers = new Dictionary(); + + var result = CrossTenantAssertions.Check( + headers, + expectedReceiver: BusIdentity.Beta, + actualBusTag: "beta"); + + Assert.False(result.Ok); + Assert.Contains("missing", result.Failure, StringComparison.OrdinalIgnoreCase); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Assertions/FlowAccountingTests.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Assertions/FlowAccountingTests.cs new file mode 100644 index 000000000..f99537c58 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Assertions/FlowAccountingTests.cs @@ -0,0 +1,156 @@ +using ServiceConnect.Examples.StressHarness.Assertions; +using Xunit; + +namespace ServiceConnect.Examples.StressHarness.Tests.Assertions; + +public class FlowAccountingTests +{ + [Fact] + public void RecordSendThenHandle_ReconcilesAsHandled() + { + var acct = new FlowAccounting(); + var flowId = Guid.NewGuid(); + + acct.RecordSend(flowId, expectedHandlerInvocations: 1); + acct.RecordHandled(flowId); + + var summary = acct.Reconcile(); + Assert.Equal(1, summary.SentCount); + Assert.Equal(1, summary.HandledCount); + Assert.Empty(summary.MissingFlows); + Assert.Empty(summary.UnexpectedFlows); + } + + [Fact] + public void SendWithoutHandle_AppearsInMissing() + { + var acct = new FlowAccounting(); + var flowId = Guid.NewGuid(); + + acct.RecordSend(flowId, expectedHandlerInvocations: 1); + + var summary = acct.Reconcile(); + Assert.Single(summary.MissingFlows, flowId); + } + + [Fact] + public void HandleWithoutSend_AppearsInUnexpected() + { + var acct = new FlowAccounting(); + var flowId = Guid.NewGuid(); + + acct.RecordHandled(flowId); + + var summary = acct.Reconcile(); + Assert.Single(summary.UnexpectedFlows, flowId); + } + + [Fact] + public void FanOut_RequiresAllHandlerInvocations() + { + var acct = new FlowAccounting(); + var flowId = Guid.NewGuid(); + + acct.RecordSend(flowId, expectedHandlerInvocations: 2); + acct.RecordHandled(flowId); + + var summary = acct.Reconcile(); + Assert.Single(summary.MissingFlows, flowId); + + acct.RecordHandled(flowId); + summary = acct.Reconcile(); + Assert.Empty(summary.MissingFlows); + } + + [Fact] + public void HandledTwice_ReportedAsDuplicated() + { + var acct = new FlowAccounting(); + var flowId = Guid.NewGuid(); + + acct.RecordSend(flowId, expectedHandlerInvocations: 1); + acct.RecordHandled(flowId); + acct.RecordHandled(flowId); // broker-redelivered duplicate + + var summary = acct.Reconcile(); + Assert.Empty(summary.MissingFlows); + Assert.Empty(summary.UnexpectedFlows); + var dup = Assert.Single(summary.DuplicatedFlows); + Assert.Equal(flowId, dup.FlowId); + Assert.Equal(1, dup.Expected); + Assert.Equal(2, dup.Observed); + } + + [Fact] + public void FanOut_HandledExactlyExpected_NoDuplicate() + { + var acct = new FlowAccounting(); + var flowId = Guid.NewGuid(); + + acct.RecordSend(flowId, expectedHandlerInvocations: 2); + acct.RecordHandled(flowId); + acct.RecordHandled(flowId); + + var summary = acct.Reconcile(); + Assert.Empty(summary.DuplicatedFlows); + Assert.Empty(summary.MissingFlows); + } + + [Fact] + public void FanOutOver_HandledMoreThanExpected_ReportedAsDuplicated() + { + var acct = new FlowAccounting(); + var flowId = Guid.NewGuid(); + + acct.RecordSend(flowId, expectedHandlerInvocations: 2); + acct.RecordHandled(flowId); + acct.RecordHandled(flowId); + acct.RecordHandled(flowId); // redelivered fan-out + + var summary = acct.Reconcile(); + Assert.Empty(summary.MissingFlows); + Assert.Empty(summary.UnexpectedFlows); + var dup = Assert.Single(summary.DuplicatedFlows); + Assert.Equal(2, dup.Expected); + Assert.Equal(3, dup.Observed); + } + + [Fact] + public void TryRemoveCompleted_RemovesFullyHandledFlows_LeavesMissingIntact() + { + var acct = new FlowAccounting(); + var completed = Guid.NewGuid(); + var missing = Guid.NewGuid(); + + acct.RecordSend(completed, expectedHandlerInvocations: 1); + acct.RecordHandled(completed); + acct.RecordSend(missing, expectedHandlerInvocations: 2); + acct.RecordHandled(missing); // only 1 of 2 + + acct.TryRemoveCompleted(); + + var summary = acct.Reconcile(); + Assert.Equal(2, summary.SentCount); // 'missing' still tracked (expected=2) + Assert.Equal(1, summary.HandledCount); // only 'missing's 1 handle still tracked + Assert.Single(summary.MissingFlows, missing); + Assert.Empty(summary.UnexpectedFlows); + } + + [Fact] + public void TryRemoveCompleted_ReturnsIdsOfReclaimedFlows() + { + var acct = new FlowAccounting(); + var done = Guid.NewGuid(); + var inflight = Guid.NewGuid(); + + acct.RecordSend(done, expectedHandlerInvocations: 1); + acct.RecordSend(inflight, expectedHandlerInvocations: 1); + acct.RecordHandled(done); + + var removed = acct.TryRemoveCompleted(); + + Assert.Single(removed); + Assert.Contains(done, removed); + Assert.DoesNotContain(inflight, removed); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Assertions/MemoryAssertionsTests.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Assertions/MemoryAssertionsTests.cs new file mode 100644 index 000000000..0b8ea13a2 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Assertions/MemoryAssertionsTests.cs @@ -0,0 +1,29 @@ +using ServiceConnect.Examples.StressHarness.Assertions; +using Xunit; + +namespace ServiceConnect.Examples.StressHarness.Tests.Assertions; + +public class MemoryAssertionsTests +{ + [Fact] + public void DeltaUnderBudget_Passes() + { + var snapshot = MemoryAssertions.CheckDelta(baselineBytes: 100_000_000, finalBytes: 105_000_000, budgetBytes: 50_000_000); + Assert.True(snapshot.Ok); + } + + [Fact] + public void DeltaOverBudget_Fails() + { + var snapshot = MemoryAssertions.CheckDelta(baselineBytes: 100_000_000, finalBytes: 200_000_000, budgetBytes: 50_000_000); + Assert.False(snapshot.Ok); + Assert.Contains("exceeded", snapshot.Failure, StringComparison.OrdinalIgnoreCase); + } + + [Fact] + public void NegativeDelta_AlwaysPasses() + { + var snapshot = MemoryAssertions.CheckDelta(baselineBytes: 200_000_000, finalBytes: 100_000_000, budgetBytes: 1); + Assert.True(snapshot.Ok); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Assertions/MessageLedgerAnalyzerTests.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Assertions/MessageLedgerAnalyzerTests.cs new file mode 100644 index 000000000..500d3d2ac --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Assertions/MessageLedgerAnalyzerTests.cs @@ -0,0 +1,149 @@ +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Chaos; +using Xunit; + +namespace ServiceConnect.Examples.StressHarness.Tests.Assertions; + +public sealed class MessageLedgerAnalyzerTests +{ + [Fact] + public void Empty_snapshot_yields_all_zero_counts() + { + var analysis = MessageLedgerAnalyzer.Analyze(new LedgerSnapshot([], [])); + + Assert.Equal(0, analysis.TotalPublishes); + Assert.Equal(0, analysis.AckedPublishes); + Assert.Equal(0, analysis.FailedPublishes); + Assert.Equal(0, analysis.TotalConsumes); + Assert.Equal(0, analysis.AckedAndConsumed); + Assert.Equal(0, analysis.AckedButLost); + Assert.Equal(0, analysis.FailedThenConsumed); + Assert.Equal(0, analysis.FailedAndLost); + Assert.Equal(0, analysis.PerMessageRedeliveries); + Assert.Empty(analysis.AckedButLostSample); + Assert.Equal(0, analysis.ConsumesWithoutPublish); + Assert.Empty(analysis.AckedButLostByWindow); + Assert.Empty(analysis.AckedButLostByPattern); + } + + [Fact] + public void Single_acked_and_consumed_message_counts_as_normal() + { + var msg = Guid.NewGuid(); + var flow = Guid.NewGuid(); + var t = DateTimeOffset.UtcNow; + var snapshot = new LedgerSnapshot( + [new PublishRecord(msg, flow, "p2p", "alpha", t, t.AddMilliseconds(2), PublishOutcome.Acked, ChaosWindow.PreChaos)], + [new ConsumeRecord(msg, flow, "p2p", "beta", t.AddMilliseconds(5), ChaosWindow.PreChaos)]); + + var analysis = MessageLedgerAnalyzer.Analyze(snapshot); + + Assert.Equal(1, analysis.TotalPublishes); + Assert.Equal(1, analysis.AckedAndConsumed); + Assert.Equal(0, analysis.AckedButLost); + } + + [Fact] + public void Acked_but_no_consume_counts_as_acked_but_lost_and_breaks_down_by_window_and_pattern() + { + var msg = Guid.NewGuid(); + var flow = Guid.NewGuid(); + var t = DateTimeOffset.UtcNow; + var snapshot = new LedgerSnapshot( + [new PublishRecord(msg, flow, "streaming", "alpha", t, t.AddMilliseconds(2), PublishOutcome.Acked, ChaosWindow.InRecovery)], + []); + + var analysis = MessageLedgerAnalyzer.Analyze(snapshot); + + Assert.Equal(1, analysis.AckedButLost); + Assert.Equal(1, analysis.AckedButLostByWindow[ChaosWindow.InRecovery]); + Assert.Equal(1, analysis.AckedButLostByPattern["streaming"]); + Assert.Single(analysis.AckedButLostSample); + } + + [Fact] + public void Failed_publish_with_no_consume_counts_as_failed_and_lost() + { + var msg = Guid.NewGuid(); + var flow = Guid.NewGuid(); + var t = DateTimeOffset.UtcNow; + var snapshot = new LedgerSnapshot( + [new PublishRecord(msg, flow, "p2p", "alpha", t, t.AddMilliseconds(2), PublishOutcome.Failed, ChaosWindow.DuringChaos)], + []); + + var analysis = MessageLedgerAnalyzer.Analyze(snapshot); + + Assert.Equal(1, analysis.FailedAndLost); + Assert.Equal(0, analysis.AckedButLost); + } + + [Fact] + public void Failed_publish_with_consume_counts_as_failed_then_consumed() + { + var msg = Guid.NewGuid(); + var flow = Guid.NewGuid(); + var t = DateTimeOffset.UtcNow; + var snapshot = new LedgerSnapshot( + [new PublishRecord(msg, flow, "p2p", "alpha", t, t.AddMilliseconds(2), PublishOutcome.Failed, ChaosWindow.DuringChaos)], + [new ConsumeRecord(msg, flow, "p2p", "beta", t.AddMilliseconds(5), ChaosWindow.InRecovery)]); + + var analysis = MessageLedgerAnalyzer.Analyze(snapshot); + + Assert.Equal(1, analysis.FailedThenConsumed); + Assert.Equal(0, analysis.AckedButLost); + Assert.Equal(0, analysis.FailedAndLost); + } + + [Fact] + public void Multiple_consumes_for_one_publish_increments_redeliveries_by_extras() + { + var msg = Guid.NewGuid(); + var flow = Guid.NewGuid(); + var t = DateTimeOffset.UtcNow; + var snapshot = new LedgerSnapshot( + [new PublishRecord(msg, flow, "p2p", "alpha", t, t.AddMilliseconds(2), PublishOutcome.Acked, ChaosWindow.PreChaos)], + [ + new ConsumeRecord(msg, flow, "p2p", "beta", t.AddMilliseconds(5), ChaosWindow.PreChaos), + new ConsumeRecord(msg, flow, "p2p", "beta", t.AddMilliseconds(50), ChaosWindow.PreChaos), + new ConsumeRecord(msg, flow, "p2p", "beta", t.AddMilliseconds(100), ChaosWindow.PreChaos), + ]); + + var analysis = MessageLedgerAnalyzer.Analyze(snapshot); + + Assert.Equal(2, analysis.PerMessageRedeliveries); + } + + [Fact] + public void Consume_with_no_matching_publish_increments_consumes_without_publish() + { + var msg = Guid.NewGuid(); + var flow = Guid.NewGuid(); + var t = DateTimeOffset.UtcNow; + var snapshot = new LedgerSnapshot( + [], + [new ConsumeRecord(msg, flow, "p2p", "beta", t, ChaosWindow.PreChaos)]); + + var analysis = MessageLedgerAnalyzer.Analyze(snapshot); + + Assert.Equal(1, analysis.ConsumesWithoutPublish); + } + + [Fact] + public void Acked_but_lost_sample_caps_at_twenty_rows() + { + var t = DateTimeOffset.UtcNow; + var rows = Enumerable.Range(0, 30) + .Select(i => new PublishRecord( + Guid.NewGuid(), Guid.NewGuid(), "p2p", "alpha", + t.AddMilliseconds(i), t.AddMilliseconds(i + 1), + PublishOutcome.Acked, ChaosWindow.InRecovery)) + .ToArray(); + var snapshot = new LedgerSnapshot(rows, []); + + var analysis = MessageLedgerAnalyzer.Analyze(snapshot); + + Assert.Equal(30, analysis.AckedButLost); + Assert.Equal(20, analysis.AckedButLostSample.Count); + Assert.True(analysis.AckedButLostSample[0].PublishStarted <= analysis.AckedButLostSample[^1].PublishStarted); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Assertions/MessageLedgerTests.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Assertions/MessageLedgerTests.cs new file mode 100644 index 000000000..9b0a89100 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Assertions/MessageLedgerTests.cs @@ -0,0 +1,108 @@ +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Chaos; +using Xunit; + +namespace ServiceConnect.Examples.StressHarness.Tests.Assertions; + +public sealed class MessageLedgerTests +{ + [Fact] + public void RecordPublishStart_then_RecordPublishCompleted_appends_one_publish_row() + { + var ledger = new MessageLedger(); + var msgId = Guid.NewGuid(); + var flowId = Guid.NewGuid(); + var t0 = DateTimeOffset.UtcNow; + + ledger.RecordPublishStart(msgId, flowId, pattern: "p2p", originBus: "alpha", started: t0, window: ChaosWindow.PreChaos); + ledger.RecordPublishCompleted(msgId, completed: t0.AddMilliseconds(2), outcome: PublishOutcome.Acked); + + var snapshot = ledger.Snapshot(); + var row = Assert.Single(snapshot.Publishes); + Assert.Equal(msgId, row.MessageId); + Assert.Equal(flowId, row.FlowId); + Assert.Equal("p2p", row.Pattern); + Assert.Equal("alpha", row.OriginBus); + Assert.Equal(t0, row.PublishStarted); + Assert.Equal(t0.AddMilliseconds(2), row.PublishCompleted); + Assert.Equal(PublishOutcome.Acked, row.Outcome); + Assert.Equal(ChaosWindow.PreChaos, row.Window); + } + + [Fact] + public void RecordConsume_appends_one_consume_row() + { + var ledger = new MessageLedger(); + var msgId = Guid.NewGuid(); + var flowId = Guid.NewGuid(); + var ts = DateTimeOffset.UtcNow; + + ledger.RecordConsume(msgId, flowId, pattern: "p2p", consumingBus: "beta", consumed: ts, window: ChaosWindow.InRecovery); + + var snapshot = ledger.Snapshot(); + var row = Assert.Single(snapshot.Consumes); + Assert.Equal(msgId, row.MessageId); + Assert.Equal(flowId, row.FlowId); + Assert.Equal("p2p", row.Pattern); + Assert.Equal("beta", row.ConsumingBus); + Assert.Equal(ts, row.Consumed); + Assert.Equal(ChaosWindow.InRecovery, row.Window); + } + + [Fact] + public void RecordConsume_supports_multiple_rows_per_message_id() + { + var ledger = new MessageLedger(); + var msgId = Guid.NewGuid(); + var flowId = Guid.NewGuid(); + + ledger.RecordConsume(msgId, flowId, "p2p", "alpha", DateTimeOffset.UtcNow, ChaosWindow.PreChaos); + ledger.RecordConsume(msgId, flowId, "p2p", "alpha", DateTimeOffset.UtcNow.AddMilliseconds(50), ChaosWindow.PreChaos); + + var snapshot = ledger.Snapshot(); + Assert.Equal(2, snapshot.Consumes.Count); + Assert.All(snapshot.Consumes, r => Assert.Equal(msgId, r.MessageId)); + } + + [Fact] + public void RecordPublishCompleted_without_RecordPublishStart_throws() + { + var ledger = new MessageLedger(); + Assert.Throws( + () => ledger.RecordPublishCompleted(Guid.NewGuid(), DateTimeOffset.UtcNow, PublishOutcome.Acked)); + } + + [Fact] + public void TryRemoveCompleted_drops_publish_and_consume_rows_for_listed_flow_ids() + { + var ledger = new MessageLedger(); + var keepFlow = Guid.NewGuid(); + var dropFlow = Guid.NewGuid(); + var keepMsg = Guid.NewGuid(); + var dropMsg = Guid.NewGuid(); + + ledger.RecordPublishStart(keepMsg, keepFlow, "p2p", "alpha", DateTimeOffset.UtcNow, ChaosWindow.PreChaos); + ledger.RecordPublishCompleted(keepMsg, DateTimeOffset.UtcNow, PublishOutcome.Acked); + ledger.RecordConsume(keepMsg, keepFlow, "p2p", "beta", DateTimeOffset.UtcNow, ChaosWindow.PreChaos); + + ledger.RecordPublishStart(dropMsg, dropFlow, "p2p", "alpha", DateTimeOffset.UtcNow, ChaosWindow.PreChaos); + ledger.RecordPublishCompleted(dropMsg, DateTimeOffset.UtcNow, PublishOutcome.Acked); + ledger.RecordConsume(dropMsg, dropFlow, "p2p", "beta", DateTimeOffset.UtcNow, ChaosWindow.PreChaos); + + ledger.TryRemoveCompleted([dropFlow]); + + var snapshot = ledger.Snapshot(); + var keptPublish = Assert.Single(snapshot.Publishes); + Assert.Equal(keepFlow, keptPublish.FlowId); + var keptConsume = Assert.Single(snapshot.Consumes); + Assert.Equal(keepFlow, keptConsume.FlowId); + } + + [Fact] + public void TryRemoveCompleted_for_unseen_flow_ids_is_a_noop() + { + var ledger = new MessageLedger(); + var ex = Record.Exception(() => ledger.TryRemoveCompleted([Guid.NewGuid(), Guid.NewGuid()])); + Assert.Null(ex); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Assertions/RecoveryAssertionTests.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Assertions/RecoveryAssertionTests.cs new file mode 100644 index 000000000..462aeef34 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Assertions/RecoveryAssertionTests.cs @@ -0,0 +1,52 @@ +using Moq; +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.Examples.StressHarness.Tests.Assertions; + +public class RecoveryAssertionTests +{ + [Fact] + public async Task BothBusesConsuming_ReturnsPass() + { + var alpha = new Mock(); alpha.SetupGet(b => b.IsConsuming).Returns(true); + var beta = new Mock(); beta.SetupGet(b => b.IsConsuming).Returns(true); + + var outcome = await RecoveryAssertion.CheckBothBusesConsumingAsync( + alpha.Object, beta.Object, TimeSpan.FromMilliseconds(200)); + + Assert.True(outcome.Ok); + } + + [Fact] + public async Task AlphaNotConsuming_AfterBudget_ReturnsFail() + { + var alpha = new Mock(); alpha.SetupGet(b => b.IsConsuming).Returns(false); + var beta = new Mock(); beta.SetupGet(b => b.IsConsuming).Returns(true); + + var outcome = await RecoveryAssertion.CheckBothBusesConsumingAsync( + alpha.Object, beta.Object, TimeSpan.FromMilliseconds(200)); + + Assert.False(outcome.Ok); + Assert.Contains("alpha", outcome.Failure, StringComparison.OrdinalIgnoreCase); + } + + [Fact] + public async Task BetaRecoversMidBudget_ReturnsPass() + { + var alpha = new Mock(); alpha.SetupGet(b => b.IsConsuming).Returns(true); + var betaCallCount = 0; + var beta = new Mock(); + beta.SetupGet(b => b.IsConsuming).Returns(() => + { + betaCallCount++; + return betaCallCount > 1; + }); + + var outcome = await RecoveryAssertion.CheckBothBusesConsumingAsync( + alpha.Object, beta.Object, TimeSpan.FromSeconds(2)); + + Assert.True(outcome.Ok); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Chaos/ChaosClockTests.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Chaos/ChaosClockTests.cs new file mode 100644 index 000000000..91c5e8589 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Chaos/ChaosClockTests.cs @@ -0,0 +1,29 @@ +using ServiceConnect.Examples.StressHarness.Chaos; +using Xunit; + +namespace ServiceConnect.Examples.StressHarness.Tests.Chaos; + +public class ChaosClockTests +{ + [Fact] + public void InitialWindow_IsPreChaos() + { + var clock = new ChaosClock(); + Assert.Equal(ChaosWindow.PreChaos, clock.CurrentWindow); + } + + [Fact] + public void SetWindow_UpdatesCurrentWindow() + { + var clock = new ChaosClock(); + + clock.SetWindow(ChaosWindow.DuringChaos); + Assert.Equal(ChaosWindow.DuringChaos, clock.CurrentWindow); + + clock.SetWindow(ChaosWindow.InRecovery); + Assert.Equal(ChaosWindow.InRecovery, clock.CurrentWindow); + + clock.SetWindow(ChaosWindow.PostChaos); + Assert.Equal(ChaosWindow.PostChaos, clock.CurrentWindow); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Chaos/ChaosSchedulerTests.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Chaos/ChaosSchedulerTests.cs new file mode 100644 index 000000000..01a19267e --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Chaos/ChaosSchedulerTests.cs @@ -0,0 +1,77 @@ +using System.Globalization; +using ServiceConnect.Examples.StressHarness.Chaos; +using Xunit; + +namespace ServiceConnect.Examples.StressHarness.Tests.Chaos; + +public class ChaosSchedulerTests +{ + [Fact] + public async Task RunAsync_KillsRestartsAndAdvancesClock_ThenRecordsEvent() + { + var fake = new RecordingBrokerChaos(); + var clock = new ChaosClock(); + var scheduler = new ChaosScheduler( + chaos: fake, + clock: clock, + nodeName: "rabbitmq", + interval: TimeSpan.FromMilliseconds(20), + downtime: TimeSpan.FromMilliseconds(20)); + + using var cts = new CancellationTokenSource(); + + var task = scheduler.RunAsync(cts.Token); + + await Task.Delay(100); + cts.Cancel(); + await task; + + Assert.True(fake.KillCount >= 1, string.Create(CultureInfo.InvariantCulture, $"expected at least 1 kill, got {fake.KillCount}")); + Assert.True(fake.RestartCount >= 1, string.Create(CultureInfo.InvariantCulture, $"expected at least 1 restart, got {fake.RestartCount}")); + Assert.True(scheduler.Events.Count >= 1, string.Create(CultureInfo.InvariantCulture, $"expected at least 1 event, got {scheduler.Events.Count}")); + Assert.Equal("rabbitmq", scheduler.Events[0].NodeName); + } + + [Fact] + public async Task RunAsync_HonoursCancellation_BeforeFirstKill() + { + var fake = new RecordingBrokerChaos(); + var clock = new ChaosClock(); + var scheduler = new ChaosScheduler( + chaos: fake, + clock: clock, + nodeName: "rabbitmq", + interval: TimeSpan.FromSeconds(10), + downtime: TimeSpan.FromSeconds(5)); + + using var cts = new CancellationTokenSource(); + var task = scheduler.RunAsync(cts.Token); + + cts.Cancel(); + await task; + + Assert.Equal(0, fake.KillCount); + Assert.Empty(scheduler.Events); + } + + private sealed class RecordingBrokerChaos : IBrokerChaos + { + public int KillCount { get; private set; } + public int RestartCount { get; private set; } + + public Task KillNodeAsync(string nodeName, CancellationToken cancellationToken) + { + KillCount++; + return Task.CompletedTask; + } + + public Task RestartNodeAsync(string nodeName, CancellationToken cancellationToken) + { + RestartCount++; + return Task.CompletedTask; + } + + public Task PartitionAsync(string nodeName, TimeSpan duration, CancellationToken cancellationToken) => + throw new NotSupportedException(); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Chaos/DockerComposeBrokerChaosTests.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Chaos/DockerComposeBrokerChaosTests.cs new file mode 100644 index 000000000..bd434f63a --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Chaos/DockerComposeBrokerChaosTests.cs @@ -0,0 +1,102 @@ +using ServiceConnect.Examples.StressHarness.Chaos; +using Xunit; + +namespace ServiceConnect.Examples.StressHarness.Tests.Chaos; + +public class DockerComposeBrokerChaosTests +{ + [Fact] + public async Task KillNodeAsync_InvokesDockerComposeStop_WithTimeout() + { + var runner = new RecordingProcessRunner(); + var chaos = new DockerComposeBrokerChaos( + composeFile: "docker-compose.yml", + projectName: "stress-harness", + runner: runner, + stopTimeout: TimeSpan.FromSeconds(30)); + + await chaos.KillNodeAsync("rabbitmq", CancellationToken.None); + + Assert.Equal("docker", runner.LastFileName); + Assert.Equal( + ["compose", "-f", "docker-compose.yml", "-p", "stress-harness", "stop", "-t", "30", "rabbitmq"], + runner.LastArguments); + } + + [Fact] + public async Task KillNodeAsync_CustomTimeout_ForwardsIntegerSeconds() + { + var runner = new RecordingProcessRunner(); + var chaos = new DockerComposeBrokerChaos( + composeFile: "docker-compose.yml", + projectName: "stress-harness", + runner: runner, + stopTimeout: TimeSpan.FromSeconds(90)); + + await chaos.KillNodeAsync("rabbitmq", CancellationToken.None); + + Assert.Equal( + ["compose", "-f", "docker-compose.yml", "-p", "stress-harness", "stop", "-t", "90", "rabbitmq"], + runner.LastArguments); + } + + [Fact] + public async Task RestartNodeAsync_InvokesDockerComposeStart_WithoutTimeoutFlag() + { + var runner = new RecordingProcessRunner(); + var chaos = new DockerComposeBrokerChaos( + composeFile: "docker-compose.yml", + projectName: "stress-harness", + runner: runner, + stopTimeout: TimeSpan.FromSeconds(30)); + + await chaos.RestartNodeAsync("rabbitmq", CancellationToken.None); + + // `docker compose start` does not accept `-t`; the timeout flag belongs + // only to the stop path. + Assert.Equal( + ["compose", "-f", "docker-compose.yml", "-p", "stress-harness", "start", "rabbitmq"], + runner.LastArguments); + } + + [Fact] + public async Task KillNodeAsync_NonZeroExitCode_Throws() + { + var runner = new RecordingProcessRunner { NextExitCode = 1 }; + var chaos = new DockerComposeBrokerChaos( + composeFile: "docker-compose.yml", + projectName: "stress-harness", + runner: runner, + stopTimeout: TimeSpan.FromSeconds(30)); + + await Assert.ThrowsAsync(() => + chaos.KillNodeAsync("rabbitmq", CancellationToken.None)); + } + + [Fact] + public async Task PartitionAsync_ThrowsNotImplementedException() + { + var chaos = new DockerComposeBrokerChaos( + composeFile: "docker-compose.yml", + projectName: "stress-harness", + runner: new RecordingProcessRunner(), + stopTimeout: TimeSpan.FromSeconds(30)); + + await Assert.ThrowsAsync(() => + chaos.PartitionAsync("rabbitmq", TimeSpan.FromSeconds(1), CancellationToken.None)); + } + + private sealed class RecordingProcessRunner : IProcessRunner + { + public string? LastFileName { get; private set; } + public IReadOnlyList LastArguments { get; private set; } = []; + public int NextExitCode { get; set; } + + public Task RunAsync(string fileName, IReadOnlyList arguments, CancellationToken cancellationToken) + { + LastFileName = fileName; + LastArguments = [.. arguments]; + return Task.FromResult(NextExitCode); + } + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Cli/HarnessCliOptionsTests.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Cli/HarnessCliOptionsTests.cs new file mode 100644 index 000000000..c8e92973b --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Cli/HarnessCliOptionsTests.cs @@ -0,0 +1,91 @@ +using ServiceConnect.Examples.StressHarness.Cli; +using Xunit; + +namespace ServiceConnect.Examples.StressHarness.Tests.Cli; + +public class HarnessCliOptionsTests +{ + [Fact] + public void Parse_NoArgs_ReturnsDefaults() + { + var opts = HarnessCliParser.Parse([]); + Assert.Equal("smoke", opts.Mode); + Assert.Equal("inmemory", opts.Persistence); + Assert.Equal("none", opts.Chaos); + Assert.Equal("amqp://localhost", opts.BrokerUri); + } + + [Fact] + public void Parse_AllFlags_OverridesDefaults() + { + var args = new[] + { + "--mode", "soak", + "--duration", "00:02:00", + "--rate", "250", + "--persistence", "mongo", + "--broker", "amqp://broker.example", + "--flow-timeout", "00:00:15", + "--memory-budget-mb", "75", + "--report-dir", "custom-out", + }; + var opts = HarnessCliParser.Parse(args); + Assert.Equal("soak", opts.Mode); + Assert.Equal(TimeSpan.FromMinutes(2), opts.Duration); + Assert.Equal(250, opts.Rate); + Assert.Equal("mongo", opts.Persistence); + Assert.Equal("amqp://broker.example", opts.BrokerUri); + Assert.Equal(TimeSpan.FromSeconds(15), opts.FlowTimeout); + Assert.Equal(75L * 1024 * 1024, opts.MemoryBudgetBytes); + Assert.Equal("custom-out", opts.ReportDir); + } + + [Fact] + public void Parse_NoArgs_ReturnsChaosDefaults() + { + var opts = HarnessCliParser.Parse([]); + Assert.Equal(TimeSpan.FromSeconds(30), opts.ChaosInterval); + Assert.Equal(TimeSpan.FromSeconds(20), opts.ChaosDowntime); + Assert.Equal(TimeSpan.FromSeconds(60), opts.ChaosRecoveryBudget); + Assert.Null(opts.ChaosComposeFile); + Assert.Equal(TimeSpan.FromSeconds(30), opts.ChaosStopTimeout); + } + + [Fact] + public void Parse_ChaosStopTimeout_OverridesDefault() + { + var opts = HarnessCliParser.Parse(["--chaos-stop-timeout", "00:01:00"]); + Assert.Equal(TimeSpan.FromMinutes(1), opts.ChaosStopTimeout); + } + + [Fact] + public void Parse_ChaosComposeFile_SetsField() + { + var opts = HarnessCliParser.Parse(["--chaos-compose-file", "/tmp/test.yml"]); + Assert.Equal("/tmp/test.yml", opts.ChaosComposeFile); + } + + [Fact] + public void Parse_ChaosDocker_AcceptedWithCustomTimings() + { + var opts = HarnessCliParser.Parse( + [ + "--chaos", "docker", + "--chaos-interval", "00:00:15", + "--chaos-downtime", "00:00:10", + "--chaos-recovery-budget", "00:01:30", + ]); + + Assert.Equal("docker", opts.Chaos); + Assert.Equal(TimeSpan.FromSeconds(15), opts.ChaosInterval); + Assert.Equal(TimeSpan.FromSeconds(10), opts.ChaosDowntime); + Assert.Equal(TimeSpan.FromSeconds(90), opts.ChaosRecoveryBudget); + } + + [Fact] + public void Parse_InvalidMode_Throws() + { + Assert.Throws(() => + HarnessCliParser.Parse(["--mode", "not-a-mode"])); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Orchestrator/LedgeredSenderTests.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Orchestrator/LedgeredSenderTests.cs new file mode 100644 index 000000000..d5d773046 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Orchestrator/LedgeredSenderTests.cs @@ -0,0 +1,370 @@ +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Chaos; +using ServiceConnect.Examples.StressHarness.Contracts.Messages; +using ServiceConnect.Examples.StressHarness.Orchestrator; +using ServiceConnect.Examples.StressHarness.Patterns; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; +using Xunit; + +namespace ServiceConnect.Examples.StressHarness.Tests.Orchestrator; + +public sealed class LedgeredSenderTests +{ + [Fact] + public async Task SendAsync_stamps_MessageId_into_outbound_headers() + { + var ledger = new MessageLedger(); + var clock = new FakeChaosClock(ChaosWindow.PreChaos); + var inner = new FakeBus(); + var wrapped = new LedgeredSender(inner, ledger, clock); + + var flowId = Guid.NewGuid(); + var opts = new SendOptions + { + EndPoint = "stress-b.work", + Headers = new Dictionary(StringComparer.Ordinal) + { + [StressHeaders.FlowId] = flowId.ToString("N"), + [StressHeaders.OriginBus] = "alpha", + [StressHeaders.Pattern] = "p2p", + }, + }; + + await wrapped.SendAsync(new P2pPing(flowId), opts); + + Assert.NotNull(inner.LastSendOptions); + var stampedHeaders = inner.LastSendOptions!.Value.Headers; + Assert.NotNull(stampedHeaders); + Assert.Equal(flowId.ToString("N"), stampedHeaders![StressHeaders.FlowId]); + Assert.Equal("alpha", stampedHeaders[StressHeaders.OriginBus]); + Assert.Equal("p2p", stampedHeaders[StressHeaders.Pattern]); + Assert.True(stampedHeaders.ContainsKey(StressHeaders.MessageId)); + Assert.True(Guid.TryParseExact(stampedHeaders[StressHeaders.MessageId], "N", out _)); + } + + [Fact] + public async Task SendAsync_records_publish_acked_on_success() + { + var ledger = new MessageLedger(); + var clock = new FakeChaosClock(ChaosWindow.DuringChaos); + var inner = new FakeBus(); + var wrapped = new LedgeredSender(inner, ledger, clock); + + var flowId = Guid.NewGuid(); + var opts = new SendOptions + { + Headers = new Dictionary(StringComparer.Ordinal) + { + [StressHeaders.FlowId] = flowId.ToString("N"), + [StressHeaders.OriginBus] = "beta", + [StressHeaders.Pattern] = "p2p", + }, + }; + + await wrapped.SendAsync(new P2pPing(flowId), opts); + + var snapshot = ledger.Snapshot(); + Assert.Single(snapshot.Publishes); + var row = snapshot.Publishes[0]; + Assert.Equal(PublishOutcome.Acked, row.Outcome); + Assert.Equal(flowId, row.FlowId); + Assert.Equal("p2p", row.Pattern); + Assert.Equal("beta", row.OriginBus); + Assert.Equal(ChaosWindow.DuringChaos, row.Window); + } + + [Fact] + public async Task SendAsync_records_publish_failed_on_inner_throw() + { + var ledger = new MessageLedger(); + var clock = new FakeChaosClock(ChaosWindow.InRecovery); + var inner = new FakeBus + { + SendAsyncImpl = (_, _, _) => Task.FromException(new InvalidOperationException("broker down")), + }; + var wrapped = new LedgeredSender(inner, ledger, clock); + + var flowId = Guid.NewGuid(); + var opts = new SendOptions + { + Headers = new Dictionary(StringComparer.Ordinal) + { + [StressHeaders.FlowId] = flowId.ToString("N"), + [StressHeaders.OriginBus] = "alpha", + [StressHeaders.Pattern] = "p2p", + }, + }; + + var ex = await Assert.ThrowsAsync(() => wrapped.SendAsync(new P2pPing(flowId), opts)); + Assert.Equal("broker down", ex.Message); + + var snapshot = ledger.Snapshot(); + Assert.Single(snapshot.Publishes); + var row = snapshot.Publishes[0]; + Assert.Equal(PublishOutcome.Failed, row.Outcome); + } + + [Fact] + public async Task PublishAsync_stamps_MessageId_and_records_acked() + { + var ledger = new MessageLedger(); + var clock = new FakeChaosClock(ChaosWindow.PostChaos); + var inner = new FakeBus(); + var wrapped = new LedgeredSender(inner, ledger, clock); + + var flowId = Guid.NewGuid(); + var opts = new PublishOptions + { + Headers = new Dictionary(StringComparer.Ordinal) + { + [StressHeaders.FlowId] = flowId.ToString("N"), + [StressHeaders.OriginBus] = "alpha", + [StressHeaders.Pattern] = "pubsub", + }, + }; + + await wrapped.PublishAsync(new P2pPing(flowId), opts); + + Assert.NotNull(inner.LastPublishOptions); + var stampedHeaders = inner.LastPublishOptions!.Value.Headers; + Assert.NotNull(stampedHeaders); + Assert.True(stampedHeaders!.ContainsKey(StressHeaders.MessageId)); + Assert.True(Guid.TryParseExact(stampedHeaders[StressHeaders.MessageId], "N", out _)); + Assert.Equal(flowId.ToString("N"), stampedHeaders[StressHeaders.FlowId]); + + var snapshot = ledger.Snapshot(); + Assert.Single(snapshot.Publishes); + var row = snapshot.Publishes[0]; + Assert.Equal(PublishOutcome.Acked, row.Outcome); + Assert.Equal(flowId, row.FlowId); + Assert.Equal("pubsub", row.Pattern); + Assert.Equal("alpha", row.OriginBus); + Assert.Equal(ChaosWindow.PostChaos, row.Window); + } + + [Fact] + public async Task SendRequestAsync_stamps_MessageId_and_records_acked() + { + var ledger = new MessageLedger(); + var clock = new FakeChaosClock(ChaosWindow.PreChaos); + var inner = new FakeBus(); + var wrapped = new LedgeredSender(inner, ledger, clock); + + var flowId = Guid.NewGuid(); + var opts = new RequestOptions + { + Headers = new Dictionary(StringComparer.Ordinal) + { + [StressHeaders.FlowId] = flowId.ToString("N"), + [StressHeaders.OriginBus] = "alpha", + [StressHeaders.Pattern] = "request-reply", + }, + }; + + // The fake returns default! — the test only cares about the ledger row. + _ = await wrapped.SendRequestAsync(new P2pPing(flowId), opts); + + Assert.NotNull(inner.LastRequestOptions); + var stampedHeaders = inner.LastRequestOptions!.Value.Headers; + Assert.NotNull(stampedHeaders); + Assert.True(stampedHeaders!.ContainsKey(StressHeaders.MessageId)); + Assert.True(Guid.TryParseExact(stampedHeaders[StressHeaders.MessageId], "N", out _)); + + var snapshot = ledger.Snapshot(); + Assert.Single(snapshot.Publishes); + var row = snapshot.Publishes[0]; + Assert.Equal(PublishOutcome.Acked, row.Outcome); + Assert.Equal(flowId, row.FlowId); + Assert.Equal("request-reply", row.Pattern); + Assert.Equal("alpha", row.OriginBus); + Assert.Equal(ChaosWindow.PreChaos, row.Window); + } + + [Fact] + public async Task RouteAsync_records_publish_keyed_by_correlation_id_with_routing_slip_pattern() + { + var ledger = new MessageLedger(); + var clock = new FakeChaosClock(ChaosWindow.PreChaos); + var inner = new FakeBus(); + var wrapped = new LedgeredSender(inner, ledger, clock); + + var correlationId = Guid.NewGuid(); + var slip = new SlipOrder(correlationId); + + await wrapped.RouteAsync(slip, ["node-a.work", "node-b.work"]); + + var snapshot = ledger.Snapshot(); + Assert.Single(snapshot.Publishes); + var row = snapshot.Publishes[0]; + Assert.Equal(correlationId, row.MessageId); + Assert.Equal("routing-slip", row.Pattern); + Assert.Equal("(routeasync)", row.OriginBus); + Assert.Equal(PublishOutcome.Acked, row.Outcome); + } + + [Fact] + public async Task SendToManyAsync_stamps_MessageId_and_records_one_row_per_call() + { + var ledger = new MessageLedger(); + var clock = new FakeChaosClock(ChaosWindow.PreChaos); + var inner = new FakeBus(); + var wrapped = new LedgeredSender(inner, ledger, clock); + + var flowId = Guid.NewGuid(); + var opts = new SendOptions + { + Headers = new Dictionary(StringComparer.Ordinal) + { + [StressHeaders.FlowId] = flowId.ToString("N"), + [StressHeaders.OriginBus] = "alpha", + [StressHeaders.Pattern] = "p2p", + }, + }; + + await wrapped.SendToManyAsync(new P2pPing(flowId), ["stress-a.work", "stress-b.work"], opts); + + Assert.NotNull(inner.LastSendToManyOptions); + var stampedHeaders = inner.LastSendToManyOptions!.Value.Headers; + Assert.NotNull(stampedHeaders); + Assert.True(stampedHeaders!.ContainsKey(StressHeaders.MessageId)); + Assert.True(Guid.TryParseExact(stampedHeaders[StressHeaders.MessageId], "N", out _)); + + var snapshot = ledger.Snapshot(); + Assert.Single(snapshot.Publishes); + Assert.Equal(PublishOutcome.Acked, snapshot.Publishes[0].Outcome); + } + + [Fact] + public async Task SendRequestMultiAsync_stamps_MessageId_and_records_acked() + { + var ledger = new MessageLedger(); + var clock = new FakeChaosClock(ChaosWindow.PreChaos); + var inner = new FakeBus(); + var wrapped = new LedgeredSender(inner, ledger, clock); + + var flowId = Guid.NewGuid(); + var opts = new RequestOptions + { + Headers = new Dictionary(StringComparer.Ordinal) + { + [StressHeaders.FlowId] = flowId.ToString("N"), + [StressHeaders.OriginBus] = "alpha", + [StressHeaders.Pattern] = "request-reply", + }, + }; + + _ = await wrapped.SendRequestMultiAsync(new P2pPing(flowId), opts); + + Assert.NotNull(inner.LastSendRequestMultiOptions); + var stampedHeaders = inner.LastSendRequestMultiOptions!.Value.Headers; + Assert.NotNull(stampedHeaders); + Assert.True(stampedHeaders!.ContainsKey(StressHeaders.MessageId)); + Assert.True(Guid.TryParseExact(stampedHeaders[StressHeaders.MessageId], "N", out _)); + + var snapshot = ledger.Snapshot(); + Assert.Single(snapshot.Publishes); + Assert.Equal(PublishOutcome.Acked, snapshot.Publishes[0].Outcome); + } + + [Fact] + public async Task PublishRequestAsync_stamps_MessageId_and_records_acked() + { + var ledger = new MessageLedger(); + var clock = new FakeChaosClock(ChaosWindow.PreChaos); + var inner = new FakeBus(); + var wrapped = new LedgeredSender(inner, ledger, clock); + + var flowId = Guid.NewGuid(); + var opts = new RequestOptions + { + Headers = new Dictionary(StringComparer.Ordinal) + { + [StressHeaders.FlowId] = flowId.ToString("N"), + [StressHeaders.OriginBus] = "alpha", + [StressHeaders.Pattern] = "request-reply", + }, + }; + + await wrapped.PublishRequestAsync(new P2pPing(flowId), onReply: _ => { }, opts); + + Assert.NotNull(inner.LastPublishRequestOptions); + var stampedHeaders = inner.LastPublishRequestOptions!.Value.Headers; + Assert.NotNull(stampedHeaders); + Assert.True(stampedHeaders!.ContainsKey(StressHeaders.MessageId)); + Assert.True(Guid.TryParseExact(stampedHeaders[StressHeaders.MessageId], "N", out _)); + + var snapshot = ledger.Snapshot(); + Assert.Single(snapshot.Publishes); + Assert.Equal(PublishOutcome.Acked, snapshot.Publishes[0].Outcome); + } + + // --------------------------------------------------------------------------- + // Test helpers + // --------------------------------------------------------------------------- + + private sealed class FakeChaosClock(ChaosWindow window) : IChaosClock + { + public ChaosWindow CurrentWindow { get; } = window; + } + + private sealed class FakeBus : IBus + { + public Func? SendAsyncImpl { get; set; } + public Func? PublishAsyncImpl { get; set; } + public SendOptions? LastSendOptions { get; private set; } + public PublishOptions? LastPublishOptions { get; private set; } + public RequestOptions? LastRequestOptions { get; private set; } + public SendOptions? LastSendToManyOptions { get; private set; } + public RequestOptions? LastSendRequestMultiOptions { get; private set; } + public RequestOptions? LastPublishRequestOptions { get; private set; } + + public Task SendAsync(T message, SendOptions? options = null, CancellationToken cancellationToken = default) where T : Message + { + LastSendOptions = options; + return SendAsyncImpl is null ? Task.CompletedTask : SendAsyncImpl(message!, options, cancellationToken); + } + + public Task PublishAsync(T message, PublishOptions? options = null, CancellationToken cancellationToken = default) where T : Message + { + LastPublishOptions = options; + return PublishAsyncImpl is null ? Task.CompletedTask : PublishAsyncImpl(message!, options, cancellationToken); + } + + public Task SendToManyAsync(T message, IReadOnlyList endPoints, SendOptions? options = null, CancellationToken cancellationToken = default) where T : Message + { + LastSendToManyOptions = options; + return Task.CompletedTask; + } + + public Task SendRequestAsync(TRequest message, RequestOptions? options = null, CancellationToken cancellationToken = default) + where TRequest : Message where TReply : Message + { + LastRequestOptions = options; + return Task.FromResult(default!); + } + + public Task> SendRequestMultiAsync(TRequest message, RequestOptions? options = null, CancellationToken cancellationToken = default) + where TRequest : Message where TReply : Message + { + LastSendRequestMultiOptions = options; + return Task.FromResult>([]); + } + + public Task PublishRequestAsync(TRequest message, Action onReply, RequestOptions? options = null, CancellationToken cancellationToken = default) + where TRequest : Message where TReply : Message + { + LastPublishRequestOptions = options; + return Task.CompletedTask; + } + + public Task RouteAsync(T message, IReadOnlyList destinations, CancellationToken cancellationToken = default) where T : Message => Task.CompletedTask; + + public IMessageBusWriteStream CreateStream(string endpoint) where T : Message => throw new NotSupportedException(); + + public Task StartConsumingAsync(CancellationToken cancellationToken = default) => Task.CompletedTask; + public Task StopConsumingAsync(CancellationToken cancellationToken = default) => Task.CompletedTask; + public bool IsConsuming => true; + public ValueTask DisposeAsync() => default; + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Patterns/Aggregators/AggregatorLedgerFilterTests.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Patterns/Aggregators/AggregatorLedgerFilterTests.cs new file mode 100644 index 000000000..4f1582d5b --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Patterns/Aggregators/AggregatorLedgerFilterTests.cs @@ -0,0 +1,93 @@ +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Chaos; +using ServiceConnect.Examples.StressHarness.Patterns; +using ServiceConnect.Examples.StressHarness.Patterns.Aggregators; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.Examples.StressHarness.Tests.Patterns.Aggregators; + +public sealed class AggregatorLedgerFilterTests +{ + [Fact] + public async Task ProcessAsync_aggregator_envelope_with_stress_headers_records_consume() + { + var ledger = new MessageLedger(); + var clock = new FakeChaosClock(ChaosWindow.InRecovery); + var filter = new AggregatorLedgerFilter("alpha", ledger, clock); + + var messageId = Guid.NewGuid(); + var flowId = Guid.NewGuid(); + var envelope = new Envelope + { + Headers = new Dictionary(StringComparer.Ordinal) + { + [StressHeaders.Pattern] = "aggregator", + [StressHeaders.FlowId] = flowId.ToString("N"), + [StressHeaders.MessageId] = messageId.ToString("N"), + }, + }; + + var action = await filter.ProcessAsync(envelope); + + Assert.Equal(FilterAction.Continue, action); + var snapshot = ledger.Snapshot(); + var row = Assert.Single(snapshot.Consumes); + Assert.Equal(messageId, row.MessageId); + Assert.Equal(flowId, row.FlowId); + Assert.Equal("aggregator", row.Pattern); + Assert.Equal("alpha", row.ConsumingBus); + Assert.Equal(ChaosWindow.InRecovery, row.Window); + } + + [Fact] + public async Task ProcessAsync_non_aggregator_envelope_does_not_record_consume() + { + var ledger = new MessageLedger(); + var clock = new FakeChaosClock(ChaosWindow.PreChaos); + var filter = new AggregatorLedgerFilter("alpha", ledger, clock); + + var envelope = new Envelope + { + Headers = new Dictionary(StringComparer.Ordinal) + { + [StressHeaders.Pattern] = "p2p", + [StressHeaders.FlowId] = Guid.NewGuid().ToString("N"), + [StressHeaders.MessageId] = Guid.NewGuid().ToString("N"), + }, + }; + + var action = await filter.ProcessAsync(envelope); + + Assert.Equal(FilterAction.Continue, action); + Assert.Empty(ledger.Snapshot().Consumes); + } + + [Fact] + public async Task ProcessAsync_aggregator_envelope_missing_MessageId_does_not_record_and_does_not_block() + { + var ledger = new MessageLedger(); + var clock = new FakeChaosClock(ChaosWindow.PreChaos); + var filter = new AggregatorLedgerFilter("alpha", ledger, clock); + + var envelope = new Envelope + { + Headers = new Dictionary(StringComparer.Ordinal) + { + [StressHeaders.Pattern] = "aggregator", + [StressHeaders.FlowId] = Guid.NewGuid().ToString("N"), + // MessageId absent + }, + }; + + var action = await filter.ProcessAsync(envelope); + + Assert.Equal(FilterAction.Continue, action); + Assert.Empty(ledger.Snapshot().Consumes); + } + + private sealed class FakeChaosClock(ChaosWindow window) : IChaosClock + { + public ChaosWindow CurrentWindow { get; } = window; + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Patterns/Aggregators/AggregatorObservationsTests.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Patterns/Aggregators/AggregatorObservationsTests.cs new file mode 100644 index 000000000..4de00ff09 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Patterns/Aggregators/AggregatorObservationsTests.cs @@ -0,0 +1,30 @@ +using ServiceConnect.Examples.StressHarness.Patterns.Aggregators; +using Xunit; + +namespace ServiceConnect.Examples.StressHarness.Tests.Patterns.Aggregators; + +public class AggregatorObservationsTests +{ + [Fact] + public async Task TryRemoveCompleted_DropsCompletedAwaiterEntry() + { + var obs = new AggregatorObservations(); + var done = Guid.NewGuid(); + var inflight = Guid.NewGuid(); + + _ = obs.AwaitBatchAsync(done, CancellationToken.None); + _ = obs.AwaitBatchAsync(inflight, CancellationToken.None); + + obs.Record(new AggregatorBatchObservation(done, "alpha", 4)); + + await Task.Yield(); + + obs.TryRemoveCompleted([done]); + + var doneAfter = obs.AwaitBatchAsync(done, CancellationToken.None); + var inflightAfter = obs.AwaitBatchAsync(inflight, CancellationToken.None); + + Assert.False(doneAfter.IsCompleted, "Re-awaiting a reclaimed flow id should yield a fresh pending TCS."); + Assert.False(inflightAfter.IsCompleted); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Patterns/Filters/FilterTrailTests.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Patterns/Filters/FilterTrailTests.cs new file mode 100644 index 000000000..c689f6057 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Patterns/Filters/FilterTrailTests.cs @@ -0,0 +1,22 @@ +using ServiceConnect.Examples.StressHarness.Patterns.Filters; +using Xunit; + +namespace ServiceConnect.Examples.StressHarness.Tests.Patterns.Filters; + +public class FilterTrailTests +{ + [Fact] + public void TryRemoveCompleted_RemovesNamedFlows_LeavesOthersIntact() + { + var trail = new FilterTrail(); + var keep = Guid.NewGuid(); + var drop = Guid.NewGuid(); + trail.Record(keep, "filter"); + trail.Record(drop, "filter"); + + trail.TryRemoveCompleted([drop]); + + Assert.Equal(["filter"], trail.Snapshot(keep)); + Assert.Empty(trail.Snapshot(drop)); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Patterns/Handlers/SagaObservationsTests.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Patterns/Handlers/SagaObservationsTests.cs new file mode 100644 index 000000000..e497bc517 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Patterns/Handlers/SagaObservationsTests.cs @@ -0,0 +1,22 @@ +using ServiceConnect.Examples.StressHarness.Patterns.Handlers; +using Xunit; + +namespace ServiceConnect.Examples.StressHarness.Tests.Patterns.Handlers; + +public class SagaObservationsTests +{ + [Fact] + public void TryRemoveCompleted_RemovesNamedFlows_LeavesOthersIntact() + { + var obs = new SagaObservations(); + var keep = Guid.NewGuid(); + var drop = Guid.NewGuid(); + obs.Record(keep, 1); + obs.Record(drop, 1); + + obs.TryRemoveCompleted([drop]); + + Assert.Equal([1], obs.Snapshot(keep)); + Assert.Empty(obs.Snapshot(drop)); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Patterns/Handlers/SlipTrailTests.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Patterns/Handlers/SlipTrailTests.cs new file mode 100644 index 000000000..d9b798be4 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Patterns/Handlers/SlipTrailTests.cs @@ -0,0 +1,22 @@ +using ServiceConnect.Examples.StressHarness.Patterns.Handlers; +using Xunit; + +namespace ServiceConnect.Examples.StressHarness.Tests.Patterns.Handlers; + +public class SlipTrailTests +{ + [Fact] + public void TryRemoveCompleted_RemovesNamedFlows_LeavesOthersIntact() + { + var trail = new SlipTrail(); + var keep = Guid.NewGuid(); + var drop = Guid.NewGuid(); + trail.Record(keep, "alpha"); + trail.Record(drop, "alpha"); + + trail.TryRemoveCompleted([drop]); + + Assert.Equal(["alpha"], trail.Snapshot(keep)); + Assert.Empty(trail.Snapshot(drop)); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Patterns/Handlers/StreamObservationsTests.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Patterns/Handlers/StreamObservationsTests.cs new file mode 100644 index 000000000..45612ea7f --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Patterns/Handlers/StreamObservationsTests.cs @@ -0,0 +1,30 @@ +using ServiceConnect.Examples.StressHarness.Patterns.Handlers; +using Xunit; + +namespace ServiceConnect.Examples.StressHarness.Tests.Patterns.Handlers; + +public class StreamObservationsTests +{ + [Fact] + public async Task TryRemoveCompleted_DropsCompletedAwaiterEntry() + { + var obs = new StreamObservations(); + var done = Guid.NewGuid(); + var inflight = Guid.NewGuid(); + + _ = obs.AwaitAsync(done, CancellationToken.None); + _ = obs.AwaitAsync(inflight, CancellationToken.None); + + obs.Record(new StreamObservation(done, "alpha", 4, "deadbeef")); + + await Task.Yield(); + + obs.TryRemoveCompleted([done]); + + var doneAfter = obs.AwaitAsync(done, CancellationToken.None); + var inflightAfter = obs.AwaitAsync(inflight, CancellationToken.None); + + Assert.False(doneAfter.IsCompleted, "Re-awaiting a reclaimed flow id should yield a fresh pending TCS."); + Assert.False(inflightAfter.IsCompleted); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Patterns/Middleware/MiddlewareTrailTests.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Patterns/Middleware/MiddlewareTrailTests.cs new file mode 100644 index 000000000..72a006ce5 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Patterns/Middleware/MiddlewareTrailTests.cs @@ -0,0 +1,22 @@ +using ServiceConnect.Examples.StressHarness.Patterns.Middleware; +using Xunit; + +namespace ServiceConnect.Examples.StressHarness.Tests.Patterns.Middleware; + +public class MiddlewareTrailTests +{ + [Fact] + public void TryRemoveCompleted_RemovesNamedFlows_LeavesOthersIntact() + { + var trail = new MiddlewareTrail(); + var keep = Guid.NewGuid(); + var drop = Guid.NewGuid(); + trail.Record(keep, "mid-enter"); + trail.Record(drop, "mid-enter"); + + trail.TryRemoveCompleted([drop]); + + Assert.Equal(["mid-enter"], trail.Snapshot(keep)); + Assert.Empty(trail.Snapshot(drop)); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Patterns/Telemetry/TelemetryObservationsTests.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Patterns/Telemetry/TelemetryObservationsTests.cs new file mode 100644 index 000000000..7246f6ee3 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Patterns/Telemetry/TelemetryObservationsTests.cs @@ -0,0 +1,40 @@ +using System.Diagnostics; +using ServiceConnect.Examples.StressHarness.Patterns.Telemetry; +using ServiceConnect.Telemetry; +using Xunit; + +namespace ServiceConnect.Examples.StressHarness.Tests.Patterns.Telemetry; + +public class TelemetryObservationsTests +{ + [Fact] + public void TryRemoveCompleted_DropsCompletedFlowActivities() + { + using var obs = new TelemetryObservations(); + using var source = new ActivitySource(ServiceConnectActivitySource.ActivitySourceName); + + var keep = Guid.NewGuid(); + var drop = Guid.NewGuid(); + + Emit(source, keep); + Emit(source, drop); + + Assert.NotEmpty(obs.GetActivitiesFor(keep)); + Assert.NotEmpty(obs.GetActivitiesFor(drop)); + + obs.TryRemoveCompleted([drop]); + + Assert.NotEmpty(obs.GetActivitiesFor(keep)); + Assert.Empty(obs.GetActivitiesFor(drop)); + } + + // The framework stamps the conversation-id tag as Guid.ToString() (default + // "D" format). The listener's parser accepts both "D" and "N" so callers + // that pre-format with "N" still index correctly; emitting "D" here mirrors + // what the production code actually puts on the wire. + private static void Emit(ActivitySource source, Guid flowId) + { + using var activity = source.StartActivity("test"); + activity?.SetTag(MessagingAttributes.MessageConversationId, flowId.ToString()); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Reporting/BytesTests.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Reporting/BytesTests.cs new file mode 100644 index 000000000..e1e2e7517 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Reporting/BytesTests.cs @@ -0,0 +1,24 @@ +using ServiceConnect.Examples.StressHarness.Reporting; +using Xunit; + +namespace ServiceConnect.Examples.StressHarness.Tests.Reporting; + +public class BytesTests +{ + [Theory] + [InlineData(0, "0 B")] + [InlineData(1, "1 B")] + [InlineData(1023, "1023 B")] + [InlineData(1024, "1.0 KB")] + [InlineData(1536, "1.5 KB")] + [InlineData(1_048_575, "1024.0 KB")] + [InlineData(1_048_576, "1.0 MB")] + [InlineData(1_572_864, "1.5 MB")] + [InlineData(50L * 1024 * 1024, "50.0 MB")] + [InlineData(1024L * 1024 * 1024, "1.00 GB")] + [InlineData(1536L * 1024 * 1024, "1.50 GB")] + public void Format_Boundaries(long bytes, string expected) + { + Assert.Equal(expected, Bytes.Format(bytes)); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Reporting/JsonReportWriterTests.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Reporting/JsonReportWriterTests.cs new file mode 100644 index 000000000..73665f41c --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Reporting/JsonReportWriterTests.cs @@ -0,0 +1,57 @@ +using System.Text.Json; +using ServiceConnect.Examples.StressHarness.Reporting; +using Xunit; + +namespace ServiceConnect.Examples.StressHarness.Tests.Reporting; + +public class JsonReportWriterTests +{ + [Fact] + public async Task WriteAsync_ProducesParseableJsonWithReportVersion() + { + var report = new Report( + ReportVersion: 3, + Mode: "smoke", + StartedAtUtc: DateTimeOffset.UnixEpoch, + CompletedAtUtc: DateTimeOffset.UnixEpoch.AddSeconds(30), + Duration: TimeSpan.FromSeconds(30), + MemoryBaselineBytes: 100_000_000, + MemoryFinalBytes: 105_000_000, + TotalFlows: 28, + PassedFlows: 28, + FailedFlows: 0, + Patterns: + [ + new PatternStats("p2p", 2, 2, 0, 1, 0, 1, 0, 5.0, 10.0, 15.0, [], []), + ], + ProcessAssertionFailures: [], + Metadata: new ReportMetadata("test-host", "net10.0", "amqp://localhost", "inmemory"), + Chaos: null, + MessageLedger: null); + + var tempDir = Path.Combine(Path.GetTempPath(), $"stress-{Guid.NewGuid():N}"); + Directory.CreateDirectory(tempDir); + var path = Path.Combine(tempDir, "report.json"); + + try + { + await JsonReportWriter.WriteAsync(report, path, CancellationToken.None); + + var json = await File.ReadAllTextAsync(path); + using var doc = JsonDocument.Parse(json); + Assert.Equal(3, doc.RootElement.GetProperty("reportVersion").GetInt32()); + Assert.Equal("smoke", doc.RootElement.GetProperty("mode").GetString()); + Assert.Equal(28, doc.RootElement.GetProperty("totalFlows").GetInt32()); + Assert.Equal("p2p", doc.RootElement.GetProperty("patterns")[0].GetProperty("name").GetString()); + Assert.Equal(1, doc.RootElement.GetProperty("patterns")[0].GetProperty("alphaPassed").GetInt32()); + Assert.Equal(1, doc.RootElement.GetProperty("patterns")[0].GetProperty("betaPassed").GetInt32()); + Assert.Equal(0, doc.RootElement.GetProperty("patterns")[0].GetProperty("failedFlows").GetArrayLength()); + Assert.Equal("test-host", doc.RootElement.GetProperty("metadata").GetProperty("hostname").GetString()); + Assert.Equal("inmemory", doc.RootElement.GetProperty("metadata").GetProperty("persistenceMode").GetString()); + } + finally + { + Directory.Delete(tempDir, recursive: true); + } + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Reporting/MarkdownReportWriterTests.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Reporting/MarkdownReportWriterTests.cs new file mode 100644 index 000000000..fe8313fda --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Reporting/MarkdownReportWriterTests.cs @@ -0,0 +1,120 @@ +using ServiceConnect.Examples.StressHarness.Reporting; +using Xunit; + +namespace ServiceConnect.Examples.StressHarness.Tests.Reporting; + +public class MarkdownReportWriterTests +{ + [Fact] + public async Task WriteAsync_IncludesHeadlineCountsAndPatternRows() + { + var report = new Report( + ReportVersion: 3, + Mode: "smoke", + StartedAtUtc: DateTimeOffset.UnixEpoch, + CompletedAtUtc: DateTimeOffset.UnixEpoch.AddSeconds(30), + Duration: TimeSpan.FromSeconds(30), + MemoryBaselineBytes: 800_000, + MemoryFinalBytes: 900_000, + TotalFlows: 28, + PassedFlows: 27, + FailedFlows: 1, + Patterns: + [ + new PatternStats("p2p", 2, 2, 0, 1, 0, 1, 0, 5.0, 10.0, 15.0, [], []), + new PatternStats("pubsub", 2, 1, 1, 1, 0, 0, 1, 8.0, 12.0, 20.0, + ["α→β handler fired 1 time, expected 2"], + [new FailedFlowDetail( + FlowId: Guid.Parse("12345678-1234-1234-1234-123456789abc"), + Direction: "α→β", + Failures: ["handler fired 1 time, expected 2"])]), + ], + ProcessAssertionFailures: [], + Metadata: new ReportMetadata("test-host", "net10.0", "amqp://localhost", "inmemory"), + Chaos: null, + MessageLedger: null); + + var tempDir = Path.Combine(Path.GetTempPath(), $"stress-{Guid.NewGuid():N}"); + Directory.CreateDirectory(tempDir); + var path = Path.Combine(tempDir, "report.md"); + + try + { + await MarkdownReportWriter.WriteAsync(report, path, CancellationToken.None); + var md = await File.ReadAllTextAsync(path); + Assert.Contains("**Host:** test-host", md); + Assert.Contains("**Broker:** amqp://localhost", md); + Assert.Contains("**Persistence:** inmemory", md); + Assert.Contains("**Mode:** smoke", md); + Assert.Contains("27 / 28", md); + Assert.Contains("| p2p | 2 | 2/0 | 1/0 | 1/0 | ", md); + Assert.Contains("| pubsub | 2 | 1/1 | 1/0 | 0/1 | ", md); + Assert.Contains("α→β handler fired 1 time, expected 2", md); + Assert.Contains("KB", md); + Assert.Contains("## Failed flows", md); + Assert.Contains("### pubsub", md); + Assert.Contains("**α→β** `12345678-1234-1234-1234-123456789abc`", md); + } + finally + { + Directory.Delete(tempDir, recursive: true); + } + } + + [Fact] + public async Task WriteAsync_WithChaos_RendersChaosBlock() + { + var report = new Report( + ReportVersion: 3, + Mode: "soak", + StartedAtUtc: DateTimeOffset.UnixEpoch, + CompletedAtUtc: DateTimeOffset.UnixEpoch.AddSeconds(30), + Duration: TimeSpan.FromSeconds(30), + MemoryBaselineBytes: 800_000, + MemoryFinalBytes: 900_000, + TotalFlows: 4, + PassedFlows: 4, + FailedFlows: 0, + Patterns: + [ + new PatternStats("p2p", 4, 4, 0, 2, 0, 2, 0, 1.0, 2.0, 3.0, [], []), + ], + ProcessAssertionFailures: [], + Metadata: new ReportMetadata("test-host", "net10.0", "amqp://localhost", "inmemory"), + Chaos: new ChaosWindowStats( + KillEventCount: 1, + Events: + [ + new ChaosEventSummary( + DateTimeOffset.UnixEpoch.AddSeconds(5), + DateTimeOffset.UnixEpoch.AddSeconds(15), + "rabbitmq"), + ], + PerPattern: + [ + new ChaosPatternBreakdown("p2p", 1, 2, 1, 0), + ], + DuplicateHandlerInvocations: 5), + MessageLedger: null); + + var tempDir = Path.Combine(Path.GetTempPath(), $"stress-chaos-{Guid.NewGuid():N}"); + Directory.CreateDirectory(tempDir); + var path = Path.Combine(tempDir, "report.md"); + + try + { + await MarkdownReportWriter.WriteAsync(report, path, CancellationToken.None); + var md = await File.ReadAllTextAsync(path); + Assert.Contains("## Chaos events", md); + Assert.Contains("**Kill events:** 1", md); + Assert.Contains("**Duplicate handler invocations:** 5", md); + Assert.Contains("rabbitmq", md); + Assert.Contains("## Per-pattern chaos window breakdown", md); + Assert.Contains("| p2p | 1 | 2 | 1 | 0 |", md); + } + finally + { + Directory.Delete(tempDir, recursive: true); + } + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Reporting/MessageLedgerReportTests.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Reporting/MessageLedgerReportTests.cs new file mode 100644 index 000000000..0a10d3eeb --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/Reporting/MessageLedgerReportTests.cs @@ -0,0 +1,116 @@ +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Chaos; +using ServiceConnect.Examples.StressHarness.Reporting; +using Xunit; + +namespace ServiceConnect.Examples.StressHarness.Tests.Reporting; + +public sealed class MessageLedgerReportTests +{ + [Fact] + public async Task Markdown_renders_message_ledger_section_when_analysis_present() + { + var analysis = new MessageLedgerAnalysis( + TotalPublishes: 100, + AckedPublishes: 99, + FailedPublishes: 1, + TotalConsumes: 95, + AckedAndConsumed: 95, + AckedButLost: 4, + FailedThenConsumed: 0, + FailedAndLost: 1, + PerMessageRedeliveries: 0, + AckedButLostByWindow: new Dictionary { [ChaosWindow.InRecovery] = 4 }, + AckedButLostByPattern: new Dictionary { ["streaming"] = 3, ["aggregator"] = 1 }, + AckedButLostSample: [], + ConsumesWithoutPublish: 0); + + var report = BuildReportFixture(messageLedger: analysis); + var tempPath = Path.GetTempFileName(); + try + { + await MarkdownReportWriter.WriteAsync(report, tempPath, CancellationToken.None); + var md = await File.ReadAllTextAsync(tempPath); + + Assert.Contains("## Message ledger", md); + Assert.Contains("**Publishes:** 100 (acked 99 / failed 1)", md); + Assert.Contains("**Acked-but-lost:** 4", md); + Assert.Contains("| InRecovery | 4 |", md); + Assert.Contains("| streaming | 3 |", md); + Assert.Contains("| aggregator | 1 |", md); + } + finally + { + File.Delete(tempPath); + } + } + + [Fact] + public async Task Markdown_skips_message_ledger_section_when_analysis_null() + { + var report = BuildReportFixture(messageLedger: null); + var tempPath = Path.GetTempFileName(); + try + { + await MarkdownReportWriter.WriteAsync(report, tempPath, CancellationToken.None); + var md = await File.ReadAllTextAsync(tempPath); + Assert.DoesNotContain("## Message ledger", md); + } + finally + { + File.Delete(tempPath); + } + } + + [Fact] + public async Task Markdown_renders_consumes_without_publish_warning_only_when_nonzero() + { + var withGap = new MessageLedgerAnalysis( + TotalPublishes: 10, + AckedPublishes: 10, + FailedPublishes: 0, + TotalConsumes: 12, + AckedAndConsumed: 10, + AckedButLost: 0, + FailedThenConsumed: 0, + FailedAndLost: 0, + PerMessageRedeliveries: 0, + AckedButLostByWindow: new Dictionary(), + AckedButLostByPattern: new Dictionary(), + AckedButLostSample: [], + ConsumesWithoutPublish: 2); + + var report = BuildReportFixture(messageLedger: withGap); + var tempPath = Path.GetTempFileName(); + try + { + await MarkdownReportWriter.WriteAsync(report, tempPath, CancellationToken.None); + var md = await File.ReadAllTextAsync(tempPath); + Assert.Contains("**Consumes without matching publish:** 2", md); + } + finally + { + File.Delete(tempPath); + } + } + + private static Report BuildReportFixture(MessageLedgerAnalysis? messageLedger) + { + return new Report( + ReportVersion: 3, + Mode: "smoke", + StartedAtUtc: DateTimeOffset.UtcNow, + CompletedAtUtc: DateTimeOffset.UtcNow, + Duration: TimeSpan.Zero, + MemoryBaselineBytes: 0, + MemoryFinalBytes: 0, + TotalFlows: 0, + PassedFlows: 0, + FailedFlows: 0, + Patterns: [], + ProcessAssertionFailures: [], + Metadata: new ReportMetadata("h", "rt", "amqp://x", "inmemory"), + Chaos: null, + MessageLedger: messageLedger); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/ServiceConnect.Examples.StressHarness.Tests.csproj b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/ServiceConnect.Examples.StressHarness.Tests.csproj new file mode 100644 index 000000000..19d8a3957 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness.Tests/ServiceConnect.Examples.StressHarness.Tests.csproj @@ -0,0 +1,13 @@ + + + ServiceConnect.Examples.StressHarness.Tests + ServiceConnect.Examples.StressHarness.Tests + + + + + + + + + diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/ConsumeRecord.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/ConsumeRecord.cs new file mode 100644 index 000000000..3f1ebafe0 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/ConsumeRecord.cs @@ -0,0 +1,11 @@ +using ServiceConnect.Examples.StressHarness.Chaos; + +namespace ServiceConnect.Examples.StressHarness.Assertions; + +public readonly record struct ConsumeRecord( + Guid MessageId, + Guid FlowId, + string Pattern, + string ConsumingBus, + DateTimeOffset Consumed, + ChaosWindow Window); diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/CrossTenantAssertions.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/CrossTenantAssertions.cs new file mode 100644 index 000000000..ca52368c9 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/CrossTenantAssertions.cs @@ -0,0 +1,37 @@ +using ServiceConnect.Examples.StressHarness.Patterns; + +namespace ServiceConnect.Examples.StressHarness.Assertions; + +public readonly record struct AssertionOutcome(bool Ok, string Failure) +{ + public static AssertionOutcome Pass() => new(true, string.Empty); + public static AssertionOutcome Fail(string reason) => new(false, reason); +} + +public static class CrossTenantAssertions +{ + /// + /// Verifies that the handler captured by ran on the bus + /// identified by , matching the driver's + /// . Operates on a header snapshot — taken by + /// while the consume context was still active — + /// rather than a live IConsumeContext, because the framework's pooled context + /// is invalidated the moment the handler returns and the driver's continuation routinely + /// fires after that point. + /// + public static AssertionOutcome Check(IReadOnlyDictionary headers, BusIdentity expectedReceiver, string actualBusTag) + { + if (!headers.ContainsKey(StressHeaders.OriginBus)) + { + return AssertionOutcome.Fail($"flow missing '{StressHeaders.OriginBus}' header"); + } + + var expectedTag = expectedReceiver.ToHeaderValue(); + if (!string.Equals(actualBusTag, expectedTag, StringComparison.Ordinal)) + { + return AssertionOutcome.Fail($"expected receiver '{expectedTag}' but handler ran on '{actualBusTag}'"); + } + + return AssertionOutcome.Pass(); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/FlowAccounting.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/FlowAccounting.cs new file mode 100644 index 000000000..a75106a29 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/FlowAccounting.cs @@ -0,0 +1,98 @@ +using System.Collections.Concurrent; + +namespace ServiceConnect.Examples.StressHarness.Assertions; + +public sealed record AccountingSummary( + int SentCount, + int HandledCount, + IReadOnlyList MissingFlows, + IReadOnlyList UnexpectedFlows, + IReadOnlyList DuplicatedFlows); + +/// +/// A flow whose handler fired more times than the matching send recorded. Surfaces broker +/// redelivery — under chaos this is the broker's expected behaviour after a killed handler +/// failed to ack; outside the chaos window it would be a real exactly-once finding. +/// +public sealed record DuplicatedFlow(Guid FlowId, int Expected, int Observed); + +public sealed class FlowAccounting +{ + private readonly ConcurrentDictionary _expected = new(); + private readonly ConcurrentDictionary _observed = new(); + + public void RecordSend(Guid flowId, int expectedHandlerInvocations) + { + _expected.AddOrUpdate(flowId, expectedHandlerInvocations, (_, existing) => existing + expectedHandlerInvocations); + } + + public void RecordHandled(Guid flowId) + { + _observed.AddOrUpdate(flowId, 1, (_, n) => n + 1); + } + + /// + /// Drops the bookkeeping for every flow whose observed handler invocations have caught + /// up with the expected count. Long-running loops call this once per tick so the two + /// dictionaries stay bounded by the in-flight set rather than the lifetime-cumulative + /// set. Flows still short of their expected fan-out are left in place so the next + /// still reports them as missing. + /// + /// + /// The flow ids that were reclaimed in this pass. Callers (the dispatch loops) feed + /// this list into every so + /// per-flow rows recorded against driver-side sub-flow ids (e.g. saga stage ids) + /// are reclaimed alongside the direction-level ids the dispatcher already passes. + /// + public IReadOnlyList TryRemoveCompleted() + { + var removed = new List(); + foreach (var kv in _expected) + { + var observed = _observed.GetValueOrDefault(kv.Key, 0); + if (observed >= kv.Value) + { + if (_expected.TryRemove(kv.Key, out _)) + { + _observed.TryRemove(kv.Key, out _); + removed.Add(kv.Key); + } + } + } + return removed; + } + + public AccountingSummary Reconcile() + { + var missing = new List(); + var unexpected = new List(); + var duplicated = new List(); + + foreach (var kv in _expected) + { + var observed = _observed.GetValueOrDefault(kv.Key, 0); + if (observed < kv.Value) + { + missing.Add(kv.Key); + } + else if (observed > kv.Value) + { + duplicated.Add(new DuplicatedFlow(kv.Key, kv.Value, observed)); + } + } + foreach (var kv in _observed) + { + if (!_expected.ContainsKey(kv.Key)) + { + unexpected.Add(kv.Key); + } + } + + return new AccountingSummary( + SentCount: _expected.Values.Sum(), + HandledCount: _observed.Values.Sum(), + MissingFlows: missing, + UnexpectedFlows: unexpected, + DuplicatedFlows: duplicated); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/IFlowKeyedSingleton.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/IFlowKeyedSingleton.cs new file mode 100644 index 000000000..dc02f2042 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/IFlowKeyedSingleton.cs @@ -0,0 +1,26 @@ +namespace ServiceConnect.Examples.StressHarness.Assertions; + +/// +/// Contract for harness accumulators that key state by flow id. A flow-keyed +/// singleton retains per-flow entries for the lifetime of the harness process +/// unless the dispatcher reclaims them after a flow completes. Without +/// reclamation a long-running soak grows unbounded; the dispatcher invokes +/// once per tick with every flow id that +/// finished on that tick so each accumulator drops its per-flow row. +/// +/// +/// Implementations must be idempotent — a flow id may be passed in twice +/// (e.g. a redelivery completes after the first reclamation pass) and the +/// second call must not throw. Implementations must also tolerate flow ids +/// they never observed, since the dispatcher does not know which accumulators +/// any given flow touched. +/// +public interface IFlowKeyedSingleton +{ + /// + /// Drops per-flow state for every id in . + /// Ids the accumulator never saw are ignored. Thread-safe; the dispatcher + /// may invoke this concurrently with the accumulator's record / read paths. + /// + void TryRemoveCompleted(IEnumerable completedFlowIds); +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/LedgerSnapshot.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/LedgerSnapshot.cs new file mode 100644 index 000000000..92f56df6d --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/LedgerSnapshot.cs @@ -0,0 +1,5 @@ +namespace ServiceConnect.Examples.StressHarness.Assertions; + +public sealed record LedgerSnapshot( + IReadOnlyList Publishes, + IReadOnlyList Consumes); diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/LifecycleAssertions.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/LifecycleAssertions.cs new file mode 100644 index 000000000..56b725606 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/LifecycleAssertions.cs @@ -0,0 +1,61 @@ +using System.Diagnostics; +using System.Diagnostics.CodeAnalysis; +using System.Globalization; +using ServiceConnect.Examples.StressHarness.Contracts.Messages; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; + +namespace ServiceConnect.Examples.StressHarness.Assertions; + +/// +/// Post-flow lifecycle checks. Run from the smoke-mode orchestrator after the regular driver +/// loop completes; the bus passed to is unusable after +/// the call returns, so the test must run last in the smoke sequence. +/// +/// +/// The harness's already swallows +/// per-step exceptions on teardown, so the subsequent await using dispose in +/// Program.cs tolerates a bus that was already disposed by this assertion without +/// surfacing a secondary failure. +/// +public static class LifecycleAssertions +{ + [SuppressMessage("Style", "IDE0060", Justification = "Beta is the in-flight consumer; the parameter documents the dispatch target even though disposal targets alpha.")] + public static async Task DisposeDuringFlowAsync(IBus alpha, IBus beta, TimeSpan timeout) + { + ArgumentNullException.ThrowIfNull(alpha); + ArgumentNullException.ThrowIfNull(beta); + + // Drop a small burst onto beta's queue while alpha is still alive so the dispose + // path has genuinely in-flight outbound work to drain. The messages are routed to + // beta's work queue (default-exchange endpoint) regardless of whether beta is + // actively dispatching them when dispose fires — the test is about producer-side + // graceful shutdown, not handler completion. + for (var i = 0; i < 5; i++) + { + await alpha.SendAsync( + new P2pPing(Guid.NewGuid()) { Token = "dispose-test" }, + new SendOptions { EndPoint = "stress-b.work" }).ConfigureAwait(false); + } + + var sw = Stopwatch.StartNew(); + try + { + await alpha.DisposeAsync().ConfigureAwait(false); + } + catch (Exception ex) + { + return AssertionOutcome.Fail(string.Create(CultureInfo.InvariantCulture, + $"alpha.DisposeAsync threw: {ex.GetType().Name}: {ex.Message}")); + } + + sw.Stop(); + if (sw.Elapsed > timeout) + { + return AssertionOutcome.Fail(string.Create(CultureInfo.InvariantCulture, + $"alpha.DisposeAsync took {sw.Elapsed}, exceeded budget {timeout}")); + } + + return AssertionOutcome.Pass(); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/MemoryAssertions.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/MemoryAssertions.cs new file mode 100644 index 000000000..f3bcb1447 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/MemoryAssertions.cs @@ -0,0 +1,19 @@ +namespace ServiceConnect.Examples.StressHarness.Assertions; + +public static class MemoryAssertions +{ + public static long SnapshotTotalMemory() => GC.GetTotalMemory(forceFullCollection: true); + + public static AssertionOutcome CheckDelta(long baselineBytes, long finalBytes, long budgetBytes) + { + var delta = finalBytes - baselineBytes; + if (delta > budgetBytes) + { + return AssertionOutcome.Fail( + string.Create( + System.Globalization.CultureInfo.InvariantCulture, + $"memory delta {delta:N0} bytes exceeded budget {budgetBytes:N0} bytes (baseline {baselineBytes:N0}, final {finalBytes:N0})")); + } + return AssertionOutcome.Pass(); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/MessageLedger.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/MessageLedger.cs new file mode 100644 index 000000000..c69f64166 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/MessageLedger.cs @@ -0,0 +1,125 @@ +using System.Collections.Concurrent; +using ServiceConnect.Examples.StressHarness.Chaos; + +namespace ServiceConnect.Examples.StressHarness.Assertions; + +/// +/// Per-message publish + consume accumulator. The harness wraps every header-bearing +/// publish surface (LedgeredSender) and records one publish row; +/// inbound handlers call once per dispatch. The post-run +/// MessageLedgerAnalyzer cross-references publishes and consumes by +/// to classify each publish into one of four +/// quadrants — see the spec for the diagnostic intent. +/// +/// +/// Thread-safe; concurrent recorders allowed. Implements +/// so the dispatcher can reclaim per-flow rows +/// after each tick — the same memory-bounding pattern used by the other flow-keyed +/// singletons. Failed and unmatched publishes are never reclaimed: their +/// detail must survive into the report. +/// +public sealed class MessageLedger : IFlowKeyedSingleton +{ + private readonly ConcurrentDictionary _publishes = new(); + private readonly ConcurrentDictionary> _consumes = new(); + + private sealed record PublishState( + Guid FlowId, + string Pattern, + string OriginBus, + DateTimeOffset Started, + ChaosWindow Window, + DateTimeOffset? Completed, + PublishOutcome? Outcome); + + public void RecordPublishStart( + Guid messageId, + Guid flowId, + string pattern, + string originBus, + DateTimeOffset started, + ChaosWindow window) + { + _publishes[messageId] = new PublishState(flowId, pattern, originBus, started, window, Completed: null, Outcome: null); + } + + public void RecordPublishCompleted(Guid messageId, DateTimeOffset completed, PublishOutcome outcome) + { + _publishes.AddOrUpdate( + messageId, + addValueFactory: _ => throw new InvalidOperationException( + $"RecordPublishCompleted called for unknown MessageId {messageId:N}; RecordPublishStart must precede it."), + updateValueFactory: (_, prev) => prev with { Completed = completed, Outcome = outcome }); + } + + public void RecordConsume( + Guid messageId, + Guid flowId, + string pattern, + string consumingBus, + DateTimeOffset consumed, + ChaosWindow window) + { + var bag = _consumes.GetOrAdd(messageId, _ => []); + bag.Add(new ConsumeRecord(messageId, flowId, pattern, consumingBus, consumed, window)); + } + + public LedgerSnapshot Snapshot() + { + var publishes = new List(_publishes.Count); + foreach (var (messageId, state) in _publishes) + { + if (state.Completed is null || state.Outcome is null) + { + continue; + } + publishes.Add(new PublishRecord( + messageId, + state.FlowId, + state.Pattern, + state.OriginBus, + state.Started, + state.Completed.Value, + state.Outcome.Value, + state.Window)); + } + + var consumes = new List(_consumes.Count); + foreach (var (_, bag) in _consumes) + { + consumes.AddRange(bag); + } + + return new LedgerSnapshot(publishes, consumes); + } + + public void TryRemoveCompleted(IEnumerable completedFlowIds) + { + var completedSet = new HashSet(completedFlowIds); + if (completedSet.Count == 0) + { + return; + } + + foreach (var (messageId, state) in _publishes) + { + if (completedSet.Contains(state.FlowId)) + { + _publishes.TryRemove(messageId, out _); + } + } + + foreach (var (messageId, bag) in _consumes) + { + if (bag.IsEmpty) + { + continue; + } + var sampleFlowId = bag.First().FlowId; + if (completedSet.Contains(sampleFlowId)) + { + _consumes.TryRemove(messageId, out _); + } + } + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/MessageLedgerAnalysis.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/MessageLedgerAnalysis.cs new file mode 100644 index 000000000..4be61c111 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/MessageLedgerAnalysis.cs @@ -0,0 +1,18 @@ +using ServiceConnect.Examples.StressHarness.Chaos; + +namespace ServiceConnect.Examples.StressHarness.Assertions; + +public sealed record MessageLedgerAnalysis( + int TotalPublishes, + int AckedPublishes, + int FailedPublishes, + int TotalConsumes, + int AckedAndConsumed, + int AckedButLost, + int FailedThenConsumed, + int FailedAndLost, + int PerMessageRedeliveries, + IReadOnlyDictionary AckedButLostByWindow, + IReadOnlyDictionary AckedButLostByPattern, + IReadOnlyList AckedButLostSample, + int ConsumesWithoutPublish); diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/MessageLedgerAnalyzer.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/MessageLedgerAnalyzer.cs new file mode 100644 index 000000000..59b8ef73e --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/MessageLedgerAnalyzer.cs @@ -0,0 +1,113 @@ +using ServiceConnect.Examples.StressHarness.Chaos; + +namespace ServiceConnect.Examples.StressHarness.Assertions; + +/// +/// Pure function from to . +/// Classifies each publish row into one of four quadrants by joining against the consume +/// rows on : +/// +/// Acked + ≥1 consume → normal delivery +/// Acked + 0 consumes → AckedButLost (hypothesis H1) +/// Failed + ≥1 consume → FailedThenConsumed (probably client retry) +/// Failed + 0 consumes → FailedAndLost (expected when broker is down) +/// +/// Also surfaces per-message redelivery counts (extras beyond the first consume) and a +/// 20-row forensic sample of acked-but-lost publishes for hand-tracing in broker logs. +/// +public static class MessageLedgerAnalyzer +{ + private const int ForensicSampleSize = 20; + + public static MessageLedgerAnalysis Analyze(LedgerSnapshot snapshot) + { + var consumesByMessage = snapshot.Consumes + .GroupBy(c => c.MessageId) + .ToDictionary(g => g.Key, g => g.Count()); + + var ackedAndConsumed = 0; + var ackedButLost = 0; + var failedThenConsumed = 0; + var failedAndLost = 0; + var ackedPublishes = 0; + var failedPublishes = 0; + var perMessageRedeliveries = 0; + + var byWindow = new Dictionary(); + var byPattern = new Dictionary(StringComparer.Ordinal); + var ackedButLostRows = new List(); + + var publishedMessageIds = new HashSet(); + + foreach (var publish in snapshot.Publishes) + { + publishedMessageIds.Add(publish.MessageId); + var consumeCount = consumesByMessage.GetValueOrDefault(publish.MessageId, 0); + + if (publish.Outcome == PublishOutcome.Acked) + { + ackedPublishes++; + if (consumeCount > 0) + { + ackedAndConsumed++; + if (consumeCount > 1) + { + perMessageRedeliveries += consumeCount - 1; + } + } + else + { + ackedButLost++; + byWindow[publish.Window] = byWindow.GetValueOrDefault(publish.Window, 0) + 1; + byPattern[publish.Pattern] = byPattern.GetValueOrDefault(publish.Pattern, 0) + 1; + ackedButLostRows.Add(publish); + } + } + else + { + failedPublishes++; + if (consumeCount > 0) + { + failedThenConsumed++; + if (consumeCount > 1) + { + perMessageRedeliveries += consumeCount - 1; + } + } + else + { + failedAndLost++; + } + } + } + + var consumesWithoutPublish = 0; + foreach (var (messageId, count) in consumesByMessage) + { + if (!publishedMessageIds.Contains(messageId)) + { + consumesWithoutPublish += count; + } + } + + var sample = ackedButLostRows + .OrderBy(r => r.PublishStarted) + .Take(ForensicSampleSize) + .ToArray(); + + return new MessageLedgerAnalysis( + TotalPublishes: snapshot.Publishes.Count, + AckedPublishes: ackedPublishes, + FailedPublishes: failedPublishes, + TotalConsumes: snapshot.Consumes.Count, + AckedAndConsumed: ackedAndConsumed, + AckedButLost: ackedButLost, + FailedThenConsumed: failedThenConsumed, + FailedAndLost: failedAndLost, + PerMessageRedeliveries: perMessageRedeliveries, + AckedButLostByWindow: byWindow, + AckedButLostByPattern: byPattern, + AckedButLostSample: sample, + ConsumesWithoutPublish: consumesWithoutPublish); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/PublishOutcome.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/PublishOutcome.cs new file mode 100644 index 000000000..f5f196cac --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/PublishOutcome.cs @@ -0,0 +1,7 @@ +namespace ServiceConnect.Examples.StressHarness.Assertions; + +public enum PublishOutcome +{ + Acked, + Failed, +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/PublishRecord.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/PublishRecord.cs new file mode 100644 index 000000000..2df0ad33e --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/PublishRecord.cs @@ -0,0 +1,13 @@ +using ServiceConnect.Examples.StressHarness.Chaos; + +namespace ServiceConnect.Examples.StressHarness.Assertions; + +public readonly record struct PublishRecord( + Guid MessageId, + Guid FlowId, + string Pattern, + string OriginBus, + DateTimeOffset PublishStarted, + DateTimeOffset PublishCompleted, + PublishOutcome Outcome, + ChaosWindow Window); diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/RecoveryAssertion.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/RecoveryAssertion.cs new file mode 100644 index 000000000..60da21709 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Assertions/RecoveryAssertion.cs @@ -0,0 +1,36 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Assertions; + +/// +/// Post-chaos recovery check. Polls on each bus until both +/// report true or the supplied budget elapses; surfaces the offending bus(es) in the failure +/// message so the report rendering can attribute the regression. The 100 ms poll interval +/// matches the wall-clock granularity of the rest of the harness's recovery accounting and +/// keeps the worst-case overshoot of the budget bounded at one tick. +/// +public static class RecoveryAssertion +{ + public static async Task CheckBothBusesConsumingAsync( + IBus alpha, + IBus beta, + TimeSpan budget) + { + ArgumentNullException.ThrowIfNull(alpha); + ArgumentNullException.ThrowIfNull(beta); + + var deadline = DateTime.UtcNow + budget; + while (DateTime.UtcNow < deadline) + { + if (alpha.IsConsuming && beta.IsConsuming) + { + return AssertionOutcome.Pass(); + } + await Task.Delay(100).ConfigureAwait(false); + } + + var alphaState = alpha.IsConsuming ? "consuming" : "NOT consuming"; + var betaState = beta.IsConsuming ? "consuming" : "NOT consuming"; + return AssertionOutcome.Fail($"recovery budget exceeded: alpha={alphaState}, beta={betaState}"); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Chaos/ChaosClock.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Chaos/ChaosClock.cs new file mode 100644 index 000000000..73d7df795 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Chaos/ChaosClock.cs @@ -0,0 +1,39 @@ +namespace ServiceConnect.Examples.StressHarness.Chaos; + +/// +/// Phase of the chaos cycle, observed by flow runners so individual +/// directions can be tagged with the window they completed inside. +/// +public enum ChaosWindow +{ + PreChaos, + DuringChaos, + InRecovery, + PostChaos, +} + +/// +/// Read-only view of the current chaos cycle phase. Abstracted so tests can +/// inject a fixed window without wiring a full . +/// +public interface IChaosClock +{ + ChaosWindow CurrentWindow { get; } +} + +/// +/// Thread-safe holder for the current . The +/// scheduler writes the window as the kill/recovery cycle advances; +/// flow runners read it on each completion. The underlying int is +/// accessed via so writes from the scheduler's +/// background task are visible to reader threads without taking a lock. +/// +public sealed class ChaosClock : IChaosClock +{ + private int _window = (int)ChaosWindow.PreChaos; + + public ChaosWindow CurrentWindow => (ChaosWindow)Volatile.Read(ref _window); + + public void SetWindow(ChaosWindow window) => + Volatile.Write(ref _window, (int)window); +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Chaos/ChaosScheduler.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Chaos/ChaosScheduler.cs new file mode 100644 index 000000000..5d8036643 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Chaos/ChaosScheduler.cs @@ -0,0 +1,58 @@ +namespace ServiceConnect.Examples.StressHarness.Chaos; + +/// +/// Audit record produced by for each +/// kill/restart cycle: the wall-clock timestamps at which the node was +/// stopped and started again, plus the node identifier passed to the +/// chaos surface. +/// +public sealed record ChaosEvent(DateTimeOffset KilledAt, DateTimeOffset RestartedAt, string NodeName); + +/// +/// Background loop that exercises an on a +/// fixed cadence: wait for interval, kill the node, advance the +/// shared to , +/// wait for downtime, restart the node, advance the clock to +/// , record the cycle, and loop. +/// The loop terminates cleanly when the supplied +/// fires (soak shutdown) — the surrounding +/// is swallowed because cancellation is the expected termination signal, +/// not an error. +/// +public sealed class ChaosScheduler( + IBrokerChaos chaos, + ChaosClock clock, + string nodeName, + TimeSpan interval, + TimeSpan downtime) +{ + private readonly List _events = []; + + public IReadOnlyList Events => _events; + + public async Task RunAsync(CancellationToken cancellationToken) + { + try + { + while (!cancellationToken.IsCancellationRequested) + { + await Task.Delay(interval, cancellationToken); + var killedAt = DateTimeOffset.UtcNow; + clock.SetWindow(ChaosWindow.DuringChaos); + await chaos.KillNodeAsync(nodeName, cancellationToken); + + await Task.Delay(downtime, cancellationToken); + await chaos.RestartNodeAsync(nodeName, cancellationToken); + var restartedAt = DateTimeOffset.UtcNow; + clock.SetWindow(ChaosWindow.InRecovery); + + _events.Add(new ChaosEvent(killedAt, restartedAt, nodeName)); + } + } + catch (OperationCanceledException) + { + // expected when soak ends; surface as normal completion so the caller + // can await without wrapping in its own catch + } + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Cli/HarnessCliOptions.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Cli/HarnessCliOptions.cs new file mode 100644 index 000000000..714d9a52a --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Cli/HarnessCliOptions.cs @@ -0,0 +1,36 @@ +namespace ServiceConnect.Examples.StressHarness.Cli; + +public sealed record HarnessCliOptions( + string Mode, // smoke | soak | throughput + TimeSpan Duration, + int Rate, + IReadOnlyList? Patterns, // null = all + string Persistence, // inmemory | mongo + string Chaos, // none | docker + string BrokerUri, + TimeSpan FlowTimeout, + long MemoryBudgetBytes, + string ReportDir, + TimeSpan ChaosInterval, + TimeSpan ChaosDowntime, + TimeSpan ChaosRecoveryBudget, + string? ChaosComposeFile, + TimeSpan ChaosStopTimeout) +{ + public static HarnessCliOptions Defaults() => new( + Mode: "smoke", + Duration: TimeSpan.FromMinutes(5), + Rate: 100, + Patterns: null, + Persistence: "inmemory", + Chaos: "none", + BrokerUri: "amqp://localhost", + FlowTimeout: TimeSpan.FromSeconds(10), + MemoryBudgetBytes: 256L * 1024 * 1024, + ReportDir: "out", + ChaosInterval: TimeSpan.FromSeconds(30), + ChaosDowntime: TimeSpan.FromSeconds(20), + ChaosRecoveryBudget: TimeSpan.FromSeconds(60), + ChaosComposeFile: null, + ChaosStopTimeout: TimeSpan.FromSeconds(30)); +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Cli/HarnessCliParser.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Cli/HarnessCliParser.cs new file mode 100644 index 000000000..08aa108c2 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Cli/HarnessCliParser.cs @@ -0,0 +1,61 @@ +using System.Globalization; + +namespace ServiceConnect.Examples.StressHarness.Cli; + +public static class HarnessCliParser +{ + private static readonly string[] ValidModes = ["smoke", "soak", "throughput"]; + private static readonly string[] ValidPersistence = ["inmemory", "mongo"]; + private static readonly string[] ValidChaos = ["none", "docker"]; + + public static HarnessCliOptions Parse(IReadOnlyList args) + { + var opts = HarnessCliOptions.Defaults(); + + for (var i = 0; i < args.Count; i++) + { + var flag = args[i]; + string Next() + { + if (++i >= args.Count) + { + throw new ArgumentException($"missing value for {flag}"); + } + + return args[i]; + } + + opts = flag switch + { + "--mode" => opts with { Mode = Validate(Next(), ValidModes, flag) }, + "--duration" => opts with { Duration = TimeSpan.Parse(Next(), CultureInfo.InvariantCulture) }, + "--rate" => opts with { Rate = int.Parse(Next(), CultureInfo.InvariantCulture) }, + "--patterns" => opts with { Patterns = Next().Split(',', StringSplitOptions.RemoveEmptyEntries) }, + "--persistence" => opts with { Persistence = Validate(Next(), ValidPersistence, flag) }, + "--chaos" => opts with { Chaos = Validate(Next(), ValidChaos, flag) }, + "--broker" => opts with { BrokerUri = Next() }, + "--flow-timeout" => opts with { FlowTimeout = TimeSpan.Parse(Next(), CultureInfo.InvariantCulture) }, + "--memory-budget-mb" => opts with { MemoryBudgetBytes = long.Parse(Next(), CultureInfo.InvariantCulture) * 1024 * 1024 }, + "--report-dir" => opts with { ReportDir = Next() }, + "--chaos-interval" => opts with { ChaosInterval = TimeSpan.Parse(Next(), CultureInfo.InvariantCulture) }, + "--chaos-downtime" => opts with { ChaosDowntime = TimeSpan.Parse(Next(), CultureInfo.InvariantCulture) }, + "--chaos-recovery-budget" => opts with { ChaosRecoveryBudget = TimeSpan.Parse(Next(), CultureInfo.InvariantCulture) }, + "--chaos-compose-file" => opts with { ChaosComposeFile = Next() }, + "--chaos-stop-timeout" => opts with { ChaosStopTimeout = TimeSpan.Parse(Next(), CultureInfo.InvariantCulture) }, + _ => throw new ArgumentException($"unknown flag {flag}"), + }; + } + + return opts; + } + + private static string Validate(string value, string[] allowed, string flagName) + { + if (!allowed.Contains(value, StringComparer.Ordinal)) + { + throw new ArgumentException($"{flagName} must be one of: {string.Join(", ", allowed)}"); + } + + return value; + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Orchestrator/FlowRunner.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Orchestrator/FlowRunner.cs new file mode 100644 index 000000000..143f7b89a --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Orchestrator/FlowRunner.cs @@ -0,0 +1,118 @@ +using System.Diagnostics; +using System.Diagnostics.CodeAnalysis; +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Chaos; +using ServiceConnect.Examples.StressHarness.Patterns; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Orchestrator; + +/// +/// Runs a single in both directions concurrently (α→β and +/// β→α) under a per-direction wall-clock budget, returning one +/// per leg so downstream aggregators can count successes and failures per bus without +/// re-deriving the direction from a collapsed result. Every result is tagged with the +/// read from the shared at the moment +/// the result is constructed, so a flow that started under +/// but completed under is attributed to the recovery +/// window. The post-flow window is the meaningful one for soak roll-ups, because that's +/// the window an operator wants to read against the SLO (did the system recover, not did +/// it stay up while the killer was idle). +/// +public sealed class FlowRunner(TimeSpan flowTimeout, ChaosClock chaosClock) +{ + private readonly TimeSpan _flowTimeout = flowTimeout; + private readonly ChaosClock _chaosClock = chaosClock; + + /// + /// Dispatches the driver against the bus pair in both directions in parallel. Each + /// direction gets its own linked so a stall on + /// one side is bounded by the flow timeout without aborting the sibling direction. + /// The returned list is always length 2: index 0 is α→β, index 1 is β→α. + /// + public async Task> RunBothDirectionsAsync( + IPatternDriver driver, + IBus alpha, + IBus beta, + FlowAccounting accounting, + CancellationToken cancellationToken) + { + using var alphaCts = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken); + using var betaCts = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken); + alphaCts.CancelAfter(_flowTimeout); + betaCts.CancelAfter(_flowTimeout); + + var alphaToBeta = RunOneAsync(driver, alpha, beta, BusIdentity.Alpha, BusIdentity.Beta, accounting, alphaCts.Token); + var betaToAlpha = RunOneAsync(driver, beta, alpha, BusIdentity.Beta, BusIdentity.Alpha, accounting, betaCts.Token); + + var results = await Task.WhenAll(alphaToBeta, betaToAlpha).ConfigureAwait(false); + return [results[0], results[1]]; + } + + // accounting flows through to the driver — drivers register sends through it, but the + // runner itself only forwards the reference. Keeping the parameter named (rather than + // discarded) preserves the call-site contract for future drivers that need it. + [SuppressMessage("Style", "IDE0060", Justification = "Threaded through to pattern drivers; reserved by contract.")] + private async Task RunOneAsync( + IPatternDriver driver, + IBus sender, + IBus receiver, + BusIdentity origin, + BusIdentity expectedReceiver, + FlowAccounting accounting, + CancellationToken cancellationToken) + { + var flowId = Guid.NewGuid(); + var ctx = new StressFlowContext( + FlowId: flowId, + Origin: origin, + ExpectedReceiver: expectedReceiver, + PatternName: driver.Name, + FlowTimeout: _flowTimeout); + + var sw = Stopwatch.StartNew(); + try + { + var result = await driver.RunFlowAsync(sender, receiver, ctx, cancellationToken).ConfigureAwait(false); + sw.Stop(); + return new DirectionResult( + FlowId: flowId, + Origin: origin, + ExpectedReceiver: expectedReceiver, + Succeeded: result.Succeeded, + Elapsed: sw.Elapsed, + MessagesSent: result.MessagesSent, + MessagesHandled: result.MessagesHandled, + AssertionFailures: result.AssertionFailures, + Window: _chaosClock.CurrentWindow); + } + catch (OperationCanceledException) + { + sw.Stop(); + return new DirectionResult( + FlowId: flowId, + Origin: origin, + ExpectedReceiver: expectedReceiver, + Succeeded: false, + Elapsed: sw.Elapsed, + MessagesSent: 0, + MessagesHandled: 0, + AssertionFailures: [$"{driver.Name} {origin.ToHeaderValue()}→{expectedReceiver.ToHeaderValue()}: timed out after {_flowTimeout}"], + Window: _chaosClock.CurrentWindow); + } + catch (Exception ex) + { + sw.Stop(); + return new DirectionResult( + FlowId: flowId, + Origin: origin, + ExpectedReceiver: expectedReceiver, + Succeeded: false, + Elapsed: sw.Elapsed, + MessagesSent: 0, + MessagesHandled: 0, + AssertionFailures: [$"{driver.Name} {origin.ToHeaderValue()}→{expectedReceiver.ToHeaderValue()}: {ex.GetType().Name}: {ex.Message}"], + Window: _chaosClock.CurrentWindow); + } + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Orchestrator/HarnessHost.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Orchestrator/HarnessHost.cs new file mode 100644 index 000000000..930dd3699 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Orchestrator/HarnessHost.cs @@ -0,0 +1,318 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Client.RabbitMQ.Configuration; +using ServiceConnect.DependencyInjection; +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Chaos; +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.InMemory; +using ServiceConnect.Persistence.MongoDb; + +namespace ServiceConnect.Examples.StressHarness.Orchestrator; + +/// +/// Owns two independent instances under a single process — one prefixed +/// stress-a.*, the other prefixed stress-b.*. Each bus has its own +/// because AddServiceConnect is single-bus per service +/// collection (it rejects a second call) so the only supported way to host two buses in one +/// process is two parallel service collections sharing only the logger factory. +/// +/// +/// Pattern drivers (see IPatternDriver) register their per-bus handlers and ancillary +/// services through the registerPerBus callback supplied to . +/// The callback receives both the framework's and a +/// short bus tag ("alpha" / "beta") so a single driver can register asymmetric +/// handler topologies (e.g. only the receiver bus binds to a contract type). +/// +public sealed class HarnessHost : IAsyncDisposable +{ + /// Alpha bus — queues prefixed stress-a. + public IBus Alpha { get; } + + /// Beta bus — queues prefixed stress-b. + public IBus Beta { get; } + + /// Service provider scoping the alpha bus; resolves alpha-side handlers. + public IServiceProvider AlphaServices { get; } + + /// Service provider scoping the beta bus; resolves beta-side handlers. + public IServiceProvider BetaServices { get; } + + private HarnessHost( + IBus alpha, + ServiceProvider alphaServices, + IBus beta, + ServiceProvider betaServices) + { + Alpha = alpha; + AlphaServices = alphaServices; + Beta = beta; + BetaServices = betaServices; + } + + /// + /// Builds both service providers, resolves the two singletons, and + /// starts each consumer. Throws if either bus fails to start; partially-started state + /// is cleaned up before the exception propagates. + /// + /// Shared broker / persistence / reporting settings. + /// + /// Callback invoked once per bus during DI composition. Receives the framework + /// already preconfigured with transport, queues, and + /// persistence, and a bus tag ("alpha" or "beta") so the driver can + /// register asymmetric topologies. Use + /// inside the callback to register handlers and helper services onto the matching + /// service collection. + /// + /// Logger factory shared across both service providers. + /// + /// Shared instance that every wrapped + /// records into. Registered as a singleton in both per-bus service providers so + /// handlers can inject it for consume-side recording. + /// + /// + /// Shared chaos-window clock. The bus wrap reads the current window for each + /// publish row; tests substitute a fake implementation of . + /// + /// + /// Threaded into each call so a slow broker + /// handshake honours orchestrator-level cancellation. + /// + public static async Task StartAsync( + HarnessOptions options, + Action registerPerBus, + ILoggerFactory loggerFactory, + MessageLedger ledger, + IChaosClock chaosClock, + CancellationToken cancellationToken) + { + ArgumentNullException.ThrowIfNull(options); + ArgumentNullException.ThrowIfNull(registerPerBus); + ArgumentNullException.ThrowIfNull(loggerFactory); + ArgumentNullException.ThrowIfNull(ledger); + ArgumentNullException.ThrowIfNull(chaosClock); + + var alphaServices = BuildServices(options, loggerFactory, busTag: "alpha", queuePrefix: "stress-a", registerPerBus, ledger, chaosClock); + ServiceProvider? betaServices = null; + IBus? alpha = null; + IBus? beta = null; + try + { + betaServices = BuildServices(options, loggerFactory, busTag: "beta", queuePrefix: "stress-b", registerPerBus, ledger, chaosClock); + + alpha = alphaServices.GetRequiredService(); + beta = betaServices.GetRequiredService(); + + // Wrap each resolved bus in a LedgeredSender BEFORE StartConsumingAsync so the + // per-bus consumer pump and the harness drivers both see the wrapped instance. + // StartConsumingAsync forwards to inner — no state change on the wrap. + alpha = new LedgeredSender(alpha, ledger, chaosClock); + beta = new LedgeredSender(beta, ledger, chaosClock); + + await alpha.StartConsumingAsync(cancellationToken).ConfigureAwait(false); + await beta.StartConsumingAsync(cancellationToken).ConfigureAwait(false); + + return new HarnessHost(alpha, alphaServices, beta, betaServices); + } + catch + { + // Roll back any work that completed before the throw so the caller does not + // leak a half-started bus pair. Dispose the bus first (if it was constructed) + // and then the owning provider, in reverse construction order. Swallow disposal + // exceptions to surface the original failure to the caller. + if (beta is not null) + { + try { await beta.DisposeAsync().ConfigureAwait(false); } catch { /* preserve original */ } + } + if (betaServices is not null) + { + try { await betaServices.DisposeAsync().ConfigureAwait(false); } catch { /* preserve original */ } + } + if (alpha is not null) + { + try { await alpha.DisposeAsync().ConfigureAwait(false); } catch { /* preserve original */ } + } + try { await alphaServices.DisposeAsync().ConfigureAwait(false); } catch { /* preserve original */ } + throw; + } + } + + private static ServiceProvider BuildServices( + HarnessOptions options, + ILoggerFactory loggerFactory, + string busTag, + string queuePrefix, + Action registerPerBus, + MessageLedger ledger, + IChaosClock chaosClock) + { + var services = new ServiceCollection(); + + // Share the harness-level logger factory so both buses log through the same sinks + // and console formatter. AddLogging() registers ILogger against the existing + // factory rather than building a fresh one. + services.AddSingleton(loggerFactory); + services.AddLogging(); + + // Drivers that don't register their own handler-reference list still need + // IReadOnlyList resolvable — AddServiceConnect snapshots it into + // the bus singleton. An empty default is harmless for send-only buses and is + // overridden by any driver-side registration that comes later (last writer wins + // for IReadOnlyList; TryAdd inside AddServiceConnect respects a pre-existing + // registration). Adding the singleton up-front avoids forcing every driver to + // remember to do this themselves. + services.AddSingleton>([]); + + // Shared ledger and clock are registered into each per-bus provider so handlers + // resolved from either provider can inject MessageLedger and IChaosClock directly + // for consume-side recording. The same instances are used by the LedgeredSender + // wraps constructed in StartAsync, keeping publish and consume rows in one shared + // ledger. + services.AddSingleton(ledger); + services.AddSingleton(chaosClock); + + services.AddServiceConnect(builder => + { + // Host + SSL go through the raw transport overload because RabbitMqOptions + // doesn't expose those properties (Host is on ITransportConfiguration directly, + // SslEnabled lives on the same surface). Durability + acks go through the + // typed RabbitMqOptions overload immediately after so the intent is + // declarative and a future framework-default flip can't silently downgrade + // chaos runs that depend on these flags. + builder.UseRabbitMQ(transport => + { + transport.Host = ExtractHost(options.BrokerUri); + // Plaintext to local rabbit; production deployments would flip SslEnabled + // and configure credentials. Suppress the framework's non-loopback plaintext + // warning when the broker URI points off-host so harness logs aren't spammed. + transport.SslEnabled = false; + }); + + // Durability contract for the chaos soak: + // Durable=true — broker keeps queue + bindings across restarts. + // PublisherAcknowledgements=true — SendAsync/PublishAsync awaits broker ack + // before completing, so a kill mid-publish + // surfaces as a failed flow rather than a + // silent loss. + // PrefetchCount=1 — caps the consumer-side delivered-but-unacked + // window to a single message. A broker SIGKILL + // can only lose what's already been pushed to + // the consumer without an ack; minimising that + // window minimises the exposure surface. The + // throughput cost is negligible for the + // ~110 flows/sec the harness drives, so the + // tighter setting applies to every run rather + // than just chaos. + // Delivery-mode=2 (persistent on-disk) is set unconditionally by the + // producer's BasicProperties builder (OutboundHeaderBuilder), so the + // broker fsyncs each message; no opt-in is required for that leg. The + // durability/ack values match the framework defaults — declaring them + // explicitly is belt-and-braces against a future default change rotating + // chaos runs back into silent-loss territory. + builder.UseRabbitMQ((RabbitMqOptions rabbit) => + { + rabbit.Durable = true; + rabbit.PublisherAcknowledgements = true; + rabbit.PrefetchCount = 1; + }); + + builder.ConfigureQueues(queues => + { + queues.QueueName = $"{queuePrefix}.work"; + queues.ErrorQueueName = $"{queuePrefix}.errors"; + queues.AuditQueueName = $"{queuePrefix}.audit"; + }); + + if (string.Equals(options.PersistenceMode, "mongo", StringComparison.OrdinalIgnoreCase)) + { + var connectionString = options.MongoConnectionString + ?? throw new InvalidOperationException( + "HarnessOptions.MongoConnectionString must be set when PersistenceMode is 'mongo'."); + + builder.UseMongoDbPersistence(persistence => + { + persistence.ConnectionString = connectionString; + // Distinct database per bus so saga / aggregator / timeout state from the + // two buses can't accidentally collide on shared collections. + persistence.DatabaseName = $"stress_{busTag}"; + }); + } + else + { + builder.UseInMemoryPersistence(); + } + + builder.ConfigureBus(bus => + { + // Drivers register their handlers explicitly through registerPerBus; no + // AppDomain-wide scan is desirable in a multi-bus host because both buses + // would otherwise bind to every handler type loaded into the process. + bus.ScanForMessageHandlers = false; + }); + + registerPerBus(builder, busTag); + }); + + return services.BuildServiceProvider(); + } + + // Accepts both forms: a bare host ("localhost", "rabbit.internal") and an AMQP-form + // URI ("amqp://host:5672"). The framework's transport.Host expects a host string + // (or comma-separated host list); only the authority host is forwarded — the port + // and scheme components of a URI are not honoured here. Operators that need a + // non-default port set it via RabbitMqOptions.Port or SetClientSetting separately. + private static string ExtractHost(string brokerUri) + { + if (string.IsNullOrWhiteSpace(brokerUri)) + { + throw new ArgumentException("HarnessOptions.BrokerUri must be a non-empty host or AMQP URI.", nameof(brokerUri)); + } + + if (Uri.TryCreate(brokerUri, UriKind.Absolute, out var uri) && !string.IsNullOrEmpty(uri.Host)) + { + return uri.Host; + } + + // Bare host form — return as-is. Validation of host-name characters happens at + // the framework's ConfigureTransport call site. + return brokerUri; + } + + /// + /// Disposes both buses then both service providers, swallowing per-step exceptions so + /// a wedged bus on one side doesn't prevent teardown of the other. Idempotent re-entry + /// is provided by ServiceProvider.DisposeAsync and Bus.DisposeAsync. + /// + public async ValueTask DisposeAsync() + { + // Buses first so consumer pumps stop before the provider yanks the underlying + // hosted-service registrations and transport singletons out from under them. + await SafeDisposeAsync(Alpha).ConfigureAwait(false); + await SafeDisposeAsync(Beta).ConfigureAwait(false); + await SafeDisposeAsync(AlphaServices).ConfigureAwait(false); + await SafeDisposeAsync(BetaServices).ConfigureAwait(false); + } + + private static async ValueTask SafeDisposeAsync(object target) + { + try + { + switch (target) + { + case IAsyncDisposable async: + await async.DisposeAsync().ConfigureAwait(false); + break; + case IDisposable sync: + sync.Dispose(); + break; + } + } + catch + { + // Best-effort teardown: one wedged side must not block the other from + // releasing its resources. The orchestrator surfaces any prior failure via + // its own assertion-failure / flow-result reporting. + } + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Orchestrator/HarnessOptions.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Orchestrator/HarnessOptions.cs new file mode 100644 index 000000000..a68e43876 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Orchestrator/HarnessOptions.cs @@ -0,0 +1,36 @@ +namespace ServiceConnect.Examples.StressHarness.Orchestrator; + +/// +/// Orchestrator-level configuration shared by both buses owned by . +/// +/// +/// RabbitMQ broker address. Either a bare host (localhost) or an AMQP-form URI +/// (amqp://host:5672). Only the host component is forwarded to +/// . +/// +/// +/// "inmemory" or "mongo". Selects the persistence registration applied to +/// both buses. Anything else is treated as in-memory. +/// +/// +/// Connection string used when is "mongo"; +/// ignored otherwise. Required (non-null) in mongo mode — +/// throws at start when missing. +/// +/// +/// Per-flow wall-clock budget the orchestrator (Task 12) applies when awaiting completion +/// of an individual pattern run. +/// +/// +/// Memory-assertion ceiling consulted by MemoryAssertions at flow boundaries. +/// +/// +/// Filesystem directory the reporting layer writes JSON/Markdown summaries into. +/// +public sealed record HarnessOptions( + string BrokerUri, + string PersistenceMode, + string? MongoConnectionString, + TimeSpan FlowTimeout, + long MemoryBudgetBytes, + string ReportDir); diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Orchestrator/LedgeredSender.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Orchestrator/LedgeredSender.cs new file mode 100644 index 000000000..34b803c7a --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Orchestrator/LedgeredSender.cs @@ -0,0 +1,232 @@ +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Chaos; +using ServiceConnect.Examples.StressHarness.Patterns; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; + +namespace ServiceConnect.Examples.StressHarness.Orchestrator; + +/// +/// Decorates an so every header-bearing publish surface writes a +/// publish row into the supplied . Stamps a fresh Guid +/// into the header on each outbound call so the +/// receiver handler can echo the same id back via . +/// Non-header surfaces (, ) +/// cannot carry caller-controlled headers; they record one row keyed by the message's +/// so a complete-call loss is still visible — per-hop +/// or per-chunk granularity needs framework instrumentation and is out of scope. +/// +public sealed class LedgeredSender(IBus inner, MessageLedger ledger, IChaosClock clock) : IBus +{ + public async Task SendAsync(T message, SendOptions? options = null, CancellationToken cancellationToken = default) + where T : Message + { + var (messageId, stamped) = StampSendOptions(options); + var (flowId, pattern, originBus) = ExtractMeta(stamped.Headers, message.CorrelationId); + ledger.RecordPublishStart(messageId, flowId, pattern, originBus, DateTimeOffset.UtcNow, clock.CurrentWindow); + try + { + await inner.SendAsync(message, stamped, cancellationToken).ConfigureAwait(false); + ledger.RecordPublishCompleted(messageId, DateTimeOffset.UtcNow, PublishOutcome.Acked); + } + catch + { + ledger.RecordPublishCompleted(messageId, DateTimeOffset.UtcNow, PublishOutcome.Failed); + throw; + } + } + + public async Task PublishAsync(T message, PublishOptions? options = null, CancellationToken cancellationToken = default) + where T : Message + { + var (messageId, stamped) = StampPublishOptions(options); + var (flowId, pattern, originBus) = ExtractMeta(stamped.Headers, message.CorrelationId); + ledger.RecordPublishStart(messageId, flowId, pattern, originBus, DateTimeOffset.UtcNow, clock.CurrentWindow); + try + { + await inner.PublishAsync(message, stamped, cancellationToken).ConfigureAwait(false); + ledger.RecordPublishCompleted(messageId, DateTimeOffset.UtcNow, PublishOutcome.Acked); + } + catch + { + ledger.RecordPublishCompleted(messageId, DateTimeOffset.UtcNow, PublishOutcome.Failed); + throw; + } + } + + public async Task SendToManyAsync(T message, IReadOnlyList endPoints, SendOptions? options = null, CancellationToken cancellationToken = default) + where T : Message + { + // One ledger row per call — SendToMany is one harness operation, even though the + // inner bus fans out to N endpoints internally. + var (messageId, stamped) = StampSendOptions(options); + var (flowId, pattern, originBus) = ExtractMeta(stamped.Headers, message.CorrelationId); + ledger.RecordPublishStart(messageId, flowId, pattern, originBus, DateTimeOffset.UtcNow, clock.CurrentWindow); + try + { + await inner.SendToManyAsync(message, endPoints, stamped, cancellationToken).ConfigureAwait(false); + ledger.RecordPublishCompleted(messageId, DateTimeOffset.UtcNow, PublishOutcome.Acked); + } + catch + { + ledger.RecordPublishCompleted(messageId, DateTimeOffset.UtcNow, PublishOutcome.Failed); + throw; + } + } + + public async Task SendRequestAsync(TRequest message, RequestOptions? options = null, CancellationToken cancellationToken = default) + where TRequest : Message where TReply : Message + { + var (messageId, stamped) = StampRequestOptions(options); + var (flowId, pattern, originBus) = ExtractMeta(stamped.Headers, message.CorrelationId); + ledger.RecordPublishStart(messageId, flowId, pattern, originBus, DateTimeOffset.UtcNow, clock.CurrentWindow); + try + { + var reply = await inner.SendRequestAsync(message, stamped, cancellationToken).ConfigureAwait(false); + ledger.RecordPublishCompleted(messageId, DateTimeOffset.UtcNow, PublishOutcome.Acked); + return reply; + } + catch + { + ledger.RecordPublishCompleted(messageId, DateTimeOffset.UtcNow, PublishOutcome.Failed); + throw; + } + } + + public async Task> SendRequestMultiAsync(TRequest message, RequestOptions? options = null, CancellationToken cancellationToken = default) + where TRequest : Message where TReply : Message + { + var (messageId, stamped) = StampRequestOptions(options); + var (flowId, pattern, originBus) = ExtractMeta(stamped.Headers, message.CorrelationId); + ledger.RecordPublishStart(messageId, flowId, pattern, originBus, DateTimeOffset.UtcNow, clock.CurrentWindow); + try + { + var replies = await inner.SendRequestMultiAsync(message, stamped, cancellationToken).ConfigureAwait(false); + ledger.RecordPublishCompleted(messageId, DateTimeOffset.UtcNow, PublishOutcome.Acked); + return replies; + } + catch + { + ledger.RecordPublishCompleted(messageId, DateTimeOffset.UtcNow, PublishOutcome.Failed); + throw; + } + } + + public async Task PublishRequestAsync(TRequest message, Action onReply, RequestOptions? options = null, CancellationToken cancellationToken = default) + where TRequest : Message where TReply : Message + { + var (messageId, stamped) = StampRequestOptions(options); + var (flowId, pattern, originBus) = ExtractMeta(stamped.Headers, message.CorrelationId); + ledger.RecordPublishStart(messageId, flowId, pattern, originBus, DateTimeOffset.UtcNow, clock.CurrentWindow); + try + { + await inner.PublishRequestAsync(message, onReply, stamped, cancellationToken).ConfigureAwait(false); + ledger.RecordPublishCompleted(messageId, DateTimeOffset.UtcNow, PublishOutcome.Acked); + } + catch + { + ledger.RecordPublishCompleted(messageId, DateTimeOffset.UtcNow, PublishOutcome.Failed); + throw; + } + } + + public async Task RouteAsync(T message, IReadOnlyList destinations, CancellationToken cancellationToken = default) + where T : Message + { + // RouteAsync has no SendOptions overload — the harness cannot stamp the MessageId + // header. Use the message's CorrelationId as the ledger key so per-call coverage + // is preserved. Per-hop granularity needs framework instrumentation. + var ledgerKey = message.CorrelationId; + ledger.RecordPublishStart(ledgerKey, message.CorrelationId, pattern: "routing-slip", originBus: "(routeasync)", DateTimeOffset.UtcNow, clock.CurrentWindow); + try + { + await inner.RouteAsync(message, destinations, cancellationToken).ConfigureAwait(false); + ledger.RecordPublishCompleted(ledgerKey, DateTimeOffset.UtcNow, PublishOutcome.Acked); + } + catch + { + ledger.RecordPublishCompleted(ledgerKey, DateTimeOffset.UtcNow, PublishOutcome.Failed); + throw; + } + } + + public IMessageBusWriteStream CreateStream(string endpoint) where T : Message + { + // Streaming chunks are framework-emitted; the wrap sees only this high-level call. + // Recording nothing here is intentional — there is no awaitable per-chunk outcome + // the wrap can observe. Streaming losses still surface via FlowAccounting.MissingFlows. + return inner.CreateStream(endpoint); + } + + public Task StartConsumingAsync(CancellationToken cancellationToken = default) => inner.StartConsumingAsync(cancellationToken); + public Task StopConsumingAsync(CancellationToken cancellationToken = default) => inner.StopConsumingAsync(cancellationToken); + public bool IsConsuming => inner.IsConsuming; + public bool IsCancelledByBroker => inner.IsCancelledByBroker; + public bool IsStopped => inner.IsStopped; + public Task RequestTimeoutAsync(Guid correlationId, TimeSpan delay, CancellationToken cancellationToken = default) => inner.RequestTimeoutAsync(correlationId, delay, cancellationToken); + public ValueTask DisposeAsync() => inner.DisposeAsync(); + + private (Guid MessageId, SendOptions Stamped) StampSendOptions(SendOptions? options) + { + var messageId = Guid.NewGuid(); + var newHeaders = MergeHeaders(options?.Headers, messageId); + var stamped = (options ?? default) with { Headers = newHeaders }; + return (messageId, stamped); + } + + private (Guid MessageId, PublishOptions Stamped) StampPublishOptions(PublishOptions? options) + { + var messageId = Guid.NewGuid(); + var newHeaders = MergeHeaders(options?.Headers, messageId); + var stamped = (options ?? default) with { Headers = newHeaders }; + return (messageId, stamped); + } + + private (Guid MessageId, RequestOptions Stamped) StampRequestOptions(RequestOptions? options) + { + var messageId = Guid.NewGuid(); + var newHeaders = MergeHeaders(options?.Headers, messageId); + // default(RequestOptions) leaves Timeout=0 which the framework rejects; start from + // Default (Timeout=DefaultTimeoutMs) and override only the headers. + var baseOpts = options ?? RequestOptions.Default; + var stamped = baseOpts with { Headers = newHeaders }; + return (messageId, stamped); + } + + private static Dictionary MergeHeaders(IReadOnlyDictionary? existing, Guid messageId) + { + var merged = new Dictionary(StringComparer.Ordinal); + if (existing is not null) + { + foreach (var (k, v) in existing) + { + merged[k] = v; + } + } + merged[StressHeaders.MessageId] = messageId.ToString("N"); + return merged; + } + + private static (Guid FlowId, string Pattern, string OriginBus) ExtractMeta(IReadOnlyDictionary? headers, Guid correlationFallback) + { + var flowId = correlationFallback; + var pattern = "(unknown)"; + var originBus = "(unknown)"; + if (headers is not null) + { + if (headers.TryGetValue(StressHeaders.FlowId, out var rawFlow) && Guid.TryParseExact(rawFlow, "N", out var parsedFlow)) + { + flowId = parsedFlow; + } + if (headers.TryGetValue(StressHeaders.Pattern, out var rawPattern)) + { + pattern = rawPattern; + } + if (headers.TryGetValue(StressHeaders.OriginBus, out var rawOrigin)) + { + originBus = rawOrigin; + } + } + return (flowId, pattern, originBus); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Orchestrator/ModeDispatcher.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Orchestrator/ModeDispatcher.cs new file mode 100644 index 000000000..121ed49ef --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Orchestrator/ModeDispatcher.cs @@ -0,0 +1,209 @@ +using System.Diagnostics.CodeAnalysis; +using System.Globalization; +using Microsoft.Extensions.Logging; +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Chaos; +using ServiceConnect.Examples.StressHarness.Cli; +using ServiceConnect.Examples.StressHarness.Patterns; +using ServiceConnect.Examples.StressHarness.Reporting; + +namespace ServiceConnect.Examples.StressHarness.Orchestrator; + +/// +/// Selects a run strategy (smoke / soak / throughput) based on the +/// CLI mode and drives the registered s against the live +/// bus pair owned by . Aggregates per-pattern outcomes and the +/// process-level reconciliation into a single +/// . +/// +public sealed class ModeDispatcher( + HarnessCliOptions opts, + IReadOnlyList drivers, + HarnessHost host, + FlowAccounting accounting, + ConsoleReporter console, + ReportMetadata metadata, + IReadOnlyList flowKeyedSingletons, + ILogger logger, + ChaosClock chaosClock, + ChaosScheduler? chaosScheduler = null) +{ + private readonly HarnessCliOptions _opts = opts; + private readonly IReadOnlyList _drivers = drivers; + private readonly HarnessHost _host = host; + private readonly FlowAccounting _accounting = accounting; + private readonly ConsoleReporter _console = console; + private readonly ReportMetadata _metadata = metadata; + private readonly IReadOnlyList _flowKeyedSingletons = flowKeyedSingletons; + + // Logger reserved for soak/throughput modes which need progress logging beyond the + // per-flow console reporter. Smoke mode prints directly through the reporter so this + // field is currently dormant. + [SuppressMessage("CodeQuality", "IDE0052", Justification = "Reserved for soak/throughput modes.")] + private readonly ILogger _logger = logger; + + // ChaosClock is required: every FlowRunner stamps the active window onto each + // DirectionResult it produces, so the clock must be present even in modes that + // never advance it (smoke, throughput) — those modes simply report every flow + // as PreChaos. The scheduler is only meaningful in soak mode; smoke / throughput + // ignore it. + private readonly ChaosClock _chaosClock = chaosClock; + [SuppressMessage("CodeQuality", "IDE0052", Justification = "Soak mode forwards through to SoakLoop; smoke / throughput ignore.")] + private readonly ChaosScheduler? _chaosScheduler = chaosScheduler; + + public Task RunAsync(CancellationToken cancellationToken) => _opts.Mode switch + { + "smoke" => RunSmokeAsync(cancellationToken), + "soak" => SoakLoop.RunAsync(_opts, _drivers, _host.Alpha, _host.Beta, _accounting, _console, _metadata, _flowKeyedSingletons, _chaosClock, _chaosScheduler, _opts.ChaosRecoveryBudget, cancellationToken), + "throughput" => ThroughputLoop.RunAsync(_opts, _drivers, _host.Alpha, _host.Beta, _accounting, _console, _metadata, _flowKeyedSingletons, _chaosClock, cancellationToken), + _ => throw new InvalidOperationException( + string.Create(CultureInfo.InvariantCulture, $"unknown mode {_opts.Mode}")), + }; + + private async Task RunSmokeAsync(CancellationToken cancellationToken) + { + var startedAt = DateTimeOffset.UtcNow; + var baseline = MemoryAssertions.SnapshotTotalMemory(); + var runner = new FlowRunner(_opts.FlowTimeout, _chaosClock); + var perPattern = new Dictionary>(StringComparer.Ordinal); + var processFailures = new List(); + + foreach (var driver in _drivers) + { + if (_opts.Patterns is not null && !_opts.Patterns.Contains(driver.Name)) + { + continue; + } + + _console.Heartbeat(tick: 1, totalTicks: 1, driver.Name); + + var directions = await runner.RunBothDirectionsAsync( + driver, _host.Alpha, _host.Beta, _accounting, cancellationToken).ConfigureAwait(false); + + if (!perPattern.TryGetValue(driver.Name, out var bucket)) + { + bucket = []; + perPattern[driver.Name] = bucket; + } + + foreach (var dir in directions) + { + bucket.Add(dir); + _console.FlowResult( + string.Create(CultureInfo.InvariantCulture, $"{driver.Name} {dir.DirectionLabel}"), + dir.Succeeded, + dir.Elapsed, + dir.AssertionFailures.Count > 0 ? string.Join("; ", dir.AssertionFailures) : null); + } + + // Smoke mode runs a single tick across every pattern; reclaim alongside the + // soak / throughput loops so a smoke run that exercises the saga pattern also + // sweeps the sub-flow ids before Reconcile inspects what's left. Reconcile + // only reports under-handled / over-handled flows, which are disjoint from the + // reclaimed-complete set. + var directionCompletedIds = directions.Where(d => d.Succeeded).Select(d => d.FlowId); + var accountingCompletedIds = _accounting.TryRemoveCompleted(); + var completedIds = directionCompletedIds.Concat(accountingCompletedIds).ToList(); + if (completedIds.Count > 0) + { + foreach (var singleton in _flowKeyedSingletons) + { + singleton.TryRemoveCompleted(completedIds); + } + } + } + + var acct = _accounting.Reconcile(); + if (acct.MissingFlows.Count > 0) + { + processFailures.Add(string.Create(CultureInfo.InvariantCulture, + $"flow accounting: {acct.MissingFlows.Count} flow(s) sent but under-handled")); + } + if (acct.UnexpectedFlows.Count > 0) + { + processFailures.Add(string.Create(CultureInfo.InvariantCulture, + $"flow accounting: {acct.UnexpectedFlows.Count} flow(s) handled without record of send")); + } + + // Lifecycle assertion runs last because it disposes the alpha bus — no further + // driver work can be issued through it afterwards. The host's own DisposeAsync + // (fired by Program.cs's `await using`) tolerates a pre-disposed bus, so a second + // dispose on the same instance is a no-op rather than a fault. + var lifecycleCheck = await LifecycleAssertions.DisposeDuringFlowAsync( + _host.Alpha, _host.Beta, TimeSpan.FromSeconds(10)).ConfigureAwait(false); + if (!lifecycleCheck.Ok) + { + processFailures.Add(string.Create(CultureInfo.InvariantCulture, + $"lifecycle: {lifecycleCheck.Failure}")); + } + + var final = MemoryAssertions.SnapshotTotalMemory(); + var completedAt = DateTimeOffset.UtcNow; + + var patternStats = perPattern.Select(kv => + { + var dirs = kv.Value; + var fails = dirs.SelectMany(d => d.AssertionFailures).ToList(); + var alphaPassed = dirs.Count(d => d.ExpectedReceiver == BusIdentity.Alpha && d.Succeeded); + var alphaFailed = dirs.Count(d => d.ExpectedReceiver == BusIdentity.Alpha && !d.Succeeded); + var betaPassed = dirs.Count(d => d.ExpectedReceiver == BusIdentity.Beta && d.Succeeded); + var betaFailed = dirs.Count(d => d.ExpectedReceiver == BusIdentity.Beta && !d.Succeeded); + var failedFlows = dirs + .Where(d => !d.Succeeded) + .Select(d => new FailedFlowDetail( + FlowId: d.FlowId, + Direction: d.DirectionLabel, + Failures: d.AssertionFailures)) + .ToList(); + return new PatternStats( + Name: kv.Key, + Runs: dirs.Count, + Passed: alphaPassed + betaPassed, + Failed: alphaFailed + betaFailed, + AlphaPassed: alphaPassed, + AlphaFailed: alphaFailed, + BetaPassed: betaPassed, + BetaFailed: betaFailed, + LatencyP50Ms: Percentile(dirs, 0.50), + LatencyP95Ms: Percentile(dirs, 0.95), + LatencyP99Ms: Percentile(dirs, 0.99), + AssertionFailures: fails, + FailedFlows: failedFlows); + }).ToList(); + + var totalFlows = patternStats.Sum(p => p.Runs); + var passedFlows = patternStats.Sum(p => p.Passed); + var failedFlows = patternStats.Sum(p => p.Failed); + + return new Report( + ReportVersion: 3, + Mode: _opts.Mode, + StartedAtUtc: startedAt, + CompletedAtUtc: completedAt, + Duration: completedAt - startedAt, + MemoryBaselineBytes: baseline, + MemoryFinalBytes: final, + TotalFlows: totalFlows, + PassedFlows: passedFlows, + FailedFlows: failedFlows, + Patterns: patternStats, + ProcessAssertionFailures: processFailures, + Metadata: _metadata, + Chaos: null, + MessageLedger: null); + } + + // Nearest-rank percentile over per-direction elapsed times. Returns 0 for an empty list + // rather than throwing, so a filtered-out driver yields a zero row in the report instead + // of being absent. + private static double Percentile(IReadOnlyList dirs, double p) + { + if (dirs.Count == 0) + { + return 0; + } + var sorted = dirs.Select(d => d.Elapsed.TotalMilliseconds).OrderBy(x => x).ToArray(); + var idx = Math.Min(sorted.Length - 1, (int)(sorted.Length * p)); + return sorted[idx]; + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Orchestrator/SoakLoop.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Orchestrator/SoakLoop.cs new file mode 100644 index 000000000..99df86e2e --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Orchestrator/SoakLoop.cs @@ -0,0 +1,352 @@ +using System.Diagnostics; +using System.Globalization; +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Chaos; +using ServiceConnect.Examples.StressHarness.Cli; +using ServiceConnect.Examples.StressHarness.Patterns; +using ServiceConnect.Examples.StressHarness.Reporting; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Orchestrator; + +/// +/// Continuous-tick run strategy. Iterates every selected in +/// both directions repeatedly until elapses or the +/// supplied trips. Wraps the loop with start / finish +/// memory snapshots so the produced exposes the resident-memory delta +/// for to evaluate against the CLI memory budget. +/// When is supplied, the scheduler's kill / restart loop +/// runs concurrently with the soak iterations; at end-of-soak the scheduler is cancelled, +/// awaited, the clock advances through for the +/// recovery budget then , and the bus pair is checked +/// for consume liveness via . +/// +/// +/// Per-pattern latency percentiles are not computed in soak mode — the goal is a long-running +/// allocation / leak check, not a throughput profile. covers +/// latency reporting under a rate-controlled schedule. +/// +public static class SoakLoop +{ + public static async Task RunAsync( + HarnessCliOptions opts, + IReadOnlyList drivers, + IBus alpha, + IBus beta, + FlowAccounting accounting, + ConsoleReporter console, + ReportMetadata metadata, + IReadOnlyList flowKeyedSingletons, + ChaosClock chaosClock, + ChaosScheduler? chaosScheduler, + TimeSpan chaosRecoveryBudget, + CancellationToken cancellationToken) + { + ArgumentNullException.ThrowIfNull(opts); + ArgumentNullException.ThrowIfNull(drivers); + ArgumentNullException.ThrowIfNull(alpha); + ArgumentNullException.ThrowIfNull(beta); + ArgumentNullException.ThrowIfNull(accounting); + ArgumentNullException.ThrowIfNull(console); + ArgumentNullException.ThrowIfNull(metadata); + ArgumentNullException.ThrowIfNull(flowKeyedSingletons); + ArgumentNullException.ThrowIfNull(chaosClock); + + var startedAt = DateTimeOffset.UtcNow; + var baseline = MemoryAssertions.SnapshotTotalMemory(); + var runner = new FlowRunner(opts.FlowTimeout, chaosClock); + var perPatternResults = drivers.ToDictionary(d => d.Name, _ => new List(), StringComparer.Ordinal); + var processFailures = new List(); + + // The scheduler runs on its own task linked to the soak's cancellation token so an + // operator Ctrl-C cancels both loops at the same instant. The try/finally below + // ensures that even if the soak body raises, the scheduler is cancelled and + // awaited before the recovery wait begins — the recovery measurement is only + // meaningful once the killer has stopped issuing new kills. + Task? schedulerTask = null; + CancellationTokenSource? schedulerCts = null; + if (chaosScheduler is not null) + { + schedulerCts = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken); + schedulerTask = Task.Run(() => chaosScheduler.RunAsync(schedulerCts.Token), cancellationToken); + } + + // Switch the console into soak mode for the duration of the loop. The reporter + // suppresses per-flow PASS lines (replacing them with a periodic heartbeat) and + // still prints failures inline. The finally ensures the heartbeat timer is + // released even if a driver raises mid-loop, so the disposer in Program.cs has + // nothing left to clean up. + console.BeginSoakMode(TimeSpan.FromSeconds(5)); + try + { + try + { + var sw = Stopwatch.StartNew(); + var tick = 0; + while (sw.Elapsed < opts.Duration && !cancellationToken.IsCancellationRequested) + { + tick++; + foreach (var driver in drivers) + { + if (opts.Patterns is not null && !opts.Patterns.Contains(driver.Name)) + { + continue; + } + + // Soak mode has no fixed tick total — the loop runs until the wall-clock + // budget expires. Pass -1 so the console line reads "[tick N/-1]"; the + // reporter does no arithmetic on the value and downstream consumers treat + // the negative as "unknown total". + console.Heartbeat(tick, totalTicks: -1, driver.Name); + + var directions = await runner.RunBothDirectionsAsync( + driver, alpha, beta, accounting, cancellationToken).ConfigureAwait(false); + + foreach (var dir in directions) + { + perPatternResults[driver.Name].Add(dir); + console.FlowResult( + string.Create(CultureInfo.InvariantCulture, $"{driver.Name} {dir.DirectionLabel}"), + dir.Succeeded, + dir.Elapsed, + dir.AssertionFailures.Count > 0 ? string.Join("; ", dir.AssertionFailures) : null); + } + + // FlowAccounting tracks every flow id the drivers booked via RecordSend — + // including driver-side sub-flow ids (e.g. saga stage ids) that the + // direction-level d.FlowId never covers. Concatenating the accounting- + // reclaimed ids ensures every IFlowKeyedSingleton sees the full set; the + // singletons' TryRemoveCompleted implementations are idempotent and + // tolerate ids they never observed, so duplicates are harmless. The + // end-of-run Reconcile() still sees any under-handled flows because + // FlowAccounting.TryRemoveCompleted only evicts rows where observed >= + // expected. + var directionCompletedIds = directions.Where(d => d.Succeeded).Select(d => d.FlowId); + var accountingCompletedIds = accounting.TryRemoveCompleted(); + var completedIds = directionCompletedIds.Concat(accountingCompletedIds).ToList(); + if (completedIds.Count > 0) + { + foreach (var singleton in flowKeyedSingletons) + { + singleton.TryRemoveCompleted(completedIds); + } + } + } + } + } + finally + { + // Cancel + await the scheduler before the recovery wait so no further kills + // race the recovery measurement. The scheduler swallows its own + // OperationCanceledException internally, so awaiting here propagates only + // genuine faults (e.g. a chaos surface that threw on RestartNodeAsync). + if (chaosScheduler is not null && schedulerCts is not null) + { + await schedulerCts.CancelAsync().ConfigureAwait(false); + if (schedulerTask is not null) + { + await schedulerTask.ConfigureAwait(false); + } + schedulerCts.Dispose(); + } + } + } + finally + { + console.EndSoakMode(); + } + + // Recovery phase only runs when chaos was active. The clock advances into + // InRecovery so any flow still in flight (drivers run synchronously inside + // the loop body, so this is a no-op for the current shape but documents the + // intent for future async drivers) is tagged appropriately; after the drain + // settles the clock moves to PostChaos for any subsequent assertion. The + // recovery check uses a fixed 30 s budget to confirm consume liveness on + // both buses; the configured recovery budget is consumed by DrainAccountingAsync + // as its maximum wall-clock budget rather than as a fixed delay, so late + // broker redeliveries get accounted for as either successful arrivals or + // duplicates instead of being counted as lost. + if (chaosScheduler is not null) + { + chaosClock.SetWindow(ChaosWindow.InRecovery); + await DrainAccountingAsync(accounting, chaosRecoveryBudget, cancellationToken).ConfigureAwait(false); + chaosClock.SetWindow(ChaosWindow.PostChaos); + + var recoveryCheck = await RecoveryAssertion.CheckBothBusesConsumingAsync( + alpha, beta, TimeSpan.FromSeconds(30)).ConfigureAwait(false); + if (!recoveryCheck.Ok) + { + processFailures.Add(string.Create(CultureInfo.InvariantCulture, + $"chaos: {recoveryCheck.Failure}")); + } + } + + var final = MemoryAssertions.SnapshotTotalMemory(); + var memCheck = MemoryAssertions.CheckDelta(baseline, final, opts.MemoryBudgetBytes); + if (!memCheck.Ok) + { + processFailures.Add(memCheck.Failure); + } + + var acct = accounting.Reconcile(); + if (acct.MissingFlows.Count > 0) + { + processFailures.Add(string.Create(CultureInfo.InvariantCulture, + $"flow accounting: {acct.MissingFlows.Count} flow(s) sent but under-handled at end of soak")); + } + + // "Extra handler firings beyond what was sent" — the per-flow excess summed + // across every flow whose observed handler count exceeded the expected. Directly + // comparable to the under-handled count: under-handled measures lost messages, + // this measures broker-redelivered ones. Under chaos both are expected; outside + // a chaos window a non-zero value here is an exactly-once finding. + var duplicateInvocations = acct.DuplicatedFlows.Sum(d => d.Observed - d.Expected); + + var completedAt = DateTimeOffset.UtcNow; + var stats = perPatternResults.Select(kv => + { + var dirs = kv.Value; + var fails = dirs.SelectMany(d => d.AssertionFailures).ToList(); + var alphaPassed = dirs.Count(d => d.ExpectedReceiver == BusIdentity.Alpha && d.Succeeded); + var alphaFailed = dirs.Count(d => d.ExpectedReceiver == BusIdentity.Alpha && !d.Succeeded); + var betaPassed = dirs.Count(d => d.ExpectedReceiver == BusIdentity.Beta && d.Succeeded); + var betaFailed = dirs.Count(d => d.ExpectedReceiver == BusIdentity.Beta && !d.Succeeded); + var failedFlows = dirs + .Where(d => !d.Succeeded) + .Select(d => new FailedFlowDetail( + FlowId: d.FlowId, + Direction: d.DirectionLabel, + Failures: d.AssertionFailures)) + .ToList(); + return new PatternStats( + Name: kv.Key, + // Each loop iteration runs both α→β and β→α, contributing two direction + // entries. Runs reflects the per-direction count directly so totals stay + // comparable across smoke / soak / throughput modes. + Runs: dirs.Count, + Passed: alphaPassed + betaPassed, + Failed: alphaFailed + betaFailed, + AlphaPassed: alphaPassed, + AlphaFailed: alphaFailed, + BetaPassed: betaPassed, + BetaFailed: betaFailed, + LatencyP50Ms: Percentile(dirs, 0.50), + LatencyP95Ms: Percentile(dirs, 0.95), + LatencyP99Ms: Percentile(dirs, 0.99), + AssertionFailures: fails, + FailedFlows: failedFlows); + }).ToList(); + + // Chaos roll-up is populated only when the scheduler ran. A non-chaos soak + // leaves Chaos null so consumers can tell "chaos disabled" from "chaos + // enabled but produced zero kills" (the latter would be a misconfiguration + // — interval longer than the soak duration — and is worth surfacing). + // Each DirectionResult was stamped with the active window by FlowRunner; + // this pass partitions the per-pattern lists by that stamp. + ChaosWindowStats? chaosStats = null; + if (chaosScheduler is not null) + { + var perPatternBreakdown = perPatternResults.Select(kv => + { + var dirs = kv.Value; + return new ChaosPatternBreakdown( + PatternName: kv.Key, + PreChaosCount: dirs.Count(d => d.Window == ChaosWindow.PreChaos), + DuringChaosCount: dirs.Count(d => d.Window == ChaosWindow.DuringChaos), + InRecoveryCount: dirs.Count(d => d.Window == ChaosWindow.InRecovery), + PostChaosCount: dirs.Count(d => d.Window == ChaosWindow.PostChaos)); + }).ToList(); + + var events = chaosScheduler.Events + .Select(e => new ChaosEventSummary(e.KilledAt, e.RestartedAt, e.NodeName)) + .ToList(); + + chaosStats = new ChaosWindowStats( + KillEventCount: events.Count, + Events: events, + PerPattern: perPatternBreakdown, + DuplicateHandlerInvocations: duplicateInvocations); + } + + return new Report( + ReportVersion: 3, + Mode: "soak", + StartedAtUtc: startedAt, + CompletedAtUtc: completedAt, + Duration: completedAt - startedAt, + MemoryBaselineBytes: baseline, + MemoryFinalBytes: final, + TotalFlows: stats.Sum(s => s.Runs), + PassedFlows: stats.Sum(s => s.Passed), + FailedFlows: stats.Sum(s => s.Failed), + Patterns: stats, + ProcessAssertionFailures: processFailures, + Metadata: metadata, + Chaos: chaosStats, + MessageLedger: null); + } + + // Polls FlowAccounting until either every sent flow has reached its expected + // handler count, the missing-flow count plateaus (no broker redeliveries are + // arriving any more), or the supplied budget is + // exhausted. Replaces a fixed delay so the harness waits long enough for late + // post-recovery redeliveries to be accounted for without burning the full + // budget on a soak that has already converged. Cancellation is treated as + // "stop draining" — the surrounding recovery assertion still runs so the + // shutdown report reflects the bus state. + private static async Task DrainAccountingAsync(FlowAccounting accounting, TimeSpan maxWait, CancellationToken ct) + { + var deadline = DateTime.UtcNow + maxWait; + var lastMissing = int.MaxValue; + var stableTicks = 0; + while (DateTime.UtcNow < deadline && !ct.IsCancellationRequested) + { + var summary = accounting.Reconcile(); + if (summary.MissingFlows.Count == 0) + { + return; + } + + if (summary.MissingFlows.Count == lastMissing) + { + stableTicks++; + // Ten consecutive 500 ms ticks with no change means the broker has + // stopped delivering — the remaining gap is genuine loss, not + // latency. Bail early so the recovery assertion can run rather + // than burning the rest of the budget on a non-converging poll. + if (stableTicks >= 10) + { + return; + } + } + else + { + stableTicks = 0; + lastMissing = summary.MissingFlows.Count; + } + + try + { + await Task.Delay(500, ct).ConfigureAwait(false); + } + catch (OperationCanceledException) + { + return; + } + } + } + + // Nearest-rank percentile over per-direction elapsed times. Returns 0 for an empty list + // rather than throwing, so a filtered-out driver yields a zero row in the report instead + // of being absent. + private static double Percentile(IReadOnlyList dirs, double p) + { + if (dirs.Count == 0) + { + return 0; + } + var sorted = dirs.Select(d => d.Elapsed.TotalMilliseconds).OrderBy(x => x).ToArray(); + var idx = Math.Min(sorted.Length - 1, (int)(sorted.Length * p)); + return sorted[idx]; + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Orchestrator/ThroughputLoop.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Orchestrator/ThroughputLoop.cs new file mode 100644 index 000000000..f037d9dbf --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Orchestrator/ThroughputLoop.cs @@ -0,0 +1,179 @@ +using System.Diagnostics; +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Chaos; +using ServiceConnect.Examples.StressHarness.Cli; +using ServiceConnect.Examples.StressHarness.Patterns; +using ServiceConnect.Examples.StressHarness.Reporting; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Orchestrator; + +/// +/// Rate-controlled run strategy. Issues one round of selected driver flows per tick, where +/// the tick period derives from (flows per second). +/// Captures per-driver round-trip latency on every flow and reports p50 / p95 / p99 in the +/// emitted . Memory baseline / final snapshots mirror the soak-mode +/// check so a rate-driven leak still trips . +/// +/// +/// The loop targets a soft cadence — if a tick overruns the budget the next tick fires +/// immediately rather than coalescing the slip, so latency reports remain meaningful under +/// broker back-pressure without distorting subsequent ticks' wall-clock spacing. +/// +public static class ThroughputLoop +{ + public static async Task RunAsync( + HarnessCliOptions opts, + IReadOnlyList drivers, + IBus alpha, + IBus beta, + FlowAccounting accounting, + ConsoleReporter console, + ReportMetadata metadata, + IReadOnlyList flowKeyedSingletons, + ChaosClock chaosClock, + CancellationToken cancellationToken) + { + ArgumentNullException.ThrowIfNull(opts); + ArgumentNullException.ThrowIfNull(drivers); + ArgumentNullException.ThrowIfNull(alpha); + ArgumentNullException.ThrowIfNull(beta); + ArgumentNullException.ThrowIfNull(accounting); + ArgumentNullException.ThrowIfNull(console); + ArgumentNullException.ThrowIfNull(metadata); + ArgumentNullException.ThrowIfNull(flowKeyedSingletons); + ArgumentNullException.ThrowIfNull(chaosClock); + _ = console; // ConsoleReporter is reserved for future progress lines; the rate + // loop intentionally stays silent per flow to avoid distorting the + // measured latency with synchronous console I/O. + + var startedAt = DateTimeOffset.UtcNow; + var baseline = MemoryAssertions.SnapshotTotalMemory(); + var runner = new FlowRunner(opts.FlowTimeout, chaosClock); + var perPatternResults = drivers.ToDictionary(d => d.Name, _ => new List(), StringComparer.Ordinal); + + // Rate is flows per second per pattern slot, so the inter-tick period is the + // reciprocal in milliseconds. Each tick visits every selected driver once, which + // means the effective per-driver rate is the configured Rate value rather than + // Rate / driverCount — operators tune Rate as the target tick frequency. + var interval = TimeSpan.FromMilliseconds(1000.0 / opts.Rate); + var sw = Stopwatch.StartNew(); + + while (sw.Elapsed < opts.Duration && !cancellationToken.IsCancellationRequested) + { + var tickStart = sw.Elapsed; + foreach (var driver in drivers) + { + if (opts.Patterns is not null && !opts.Patterns.Contains(driver.Name)) + { + continue; + } + + var directions = await runner.RunBothDirectionsAsync( + driver, alpha, beta, accounting, cancellationToken).ConfigureAwait(false); + + foreach (var dir in directions) + { + perPatternResults[driver.Name].Add(dir); + } + + // FlowAccounting tracks every flow id the drivers booked via RecordSend — + // including driver-side sub-flow ids (e.g. saga stage ids) that the + // direction-level d.FlowId never covers. Concatenating the accounting- + // reclaimed ids ensures every IFlowKeyedSingleton sees the full set; the + // singletons' TryRemoveCompleted implementations are idempotent and + // tolerate ids they never observed, so duplicates are harmless. + var directionCompletedIds = directions.Where(d => d.Succeeded).Select(d => d.FlowId); + var accountingCompletedIds = accounting.TryRemoveCompleted(); + var completedIds = directionCompletedIds.Concat(accountingCompletedIds).ToList(); + if (completedIds.Count > 0) + { + foreach (var singleton in flowKeyedSingletons) + { + singleton.TryRemoveCompleted(completedIds); + } + } + } + + var tickElapsed = sw.Elapsed - tickStart; + var sleep = interval - tickElapsed; + if (sleep > TimeSpan.Zero) + { + await Task.Delay(sleep, cancellationToken).ConfigureAwait(false); + } + } + + var final = MemoryAssertions.SnapshotTotalMemory(); + var processFailures = new List(); + var memCheck = MemoryAssertions.CheckDelta(baseline, final, opts.MemoryBudgetBytes); + if (!memCheck.Ok) + { + processFailures.Add(memCheck.Failure); + } + + var stats = perPatternResults.Select(kv => + { + var dirs = kv.Value; + var fails = dirs.SelectMany(d => d.AssertionFailures).ToList(); + var alphaPassed = dirs.Count(d => d.ExpectedReceiver == BusIdentity.Alpha && d.Succeeded); + var alphaFailed = dirs.Count(d => d.ExpectedReceiver == BusIdentity.Alpha && !d.Succeeded); + var betaPassed = dirs.Count(d => d.ExpectedReceiver == BusIdentity.Beta && d.Succeeded); + var betaFailed = dirs.Count(d => d.ExpectedReceiver == BusIdentity.Beta && !d.Succeeded); + var failedFlows = dirs + .Where(d => !d.Succeeded) + .Select(d => new FailedFlowDetail( + FlowId: d.FlowId, + Direction: d.DirectionLabel, + Failures: d.AssertionFailures)) + .ToList(); + return new PatternStats( + Name: kv.Key, + // Each tick contributes one α→β plus one β→α direction; Runs is the total + // direction count, matching smoke and soak modes. + Runs: dirs.Count, + Passed: alphaPassed + betaPassed, + Failed: alphaFailed + betaFailed, + AlphaPassed: alphaPassed, + AlphaFailed: alphaFailed, + BetaPassed: betaPassed, + BetaFailed: betaFailed, + LatencyP50Ms: Percentile(dirs, 0.50), + LatencyP95Ms: Percentile(dirs, 0.95), + LatencyP99Ms: Percentile(dirs, 0.99), + AssertionFailures: fails, + FailedFlows: failedFlows); + }).ToList(); + + var completedAt = DateTimeOffset.UtcNow; + return new Report( + ReportVersion: 3, + Mode: "throughput", + StartedAtUtc: startedAt, + CompletedAtUtc: completedAt, + Duration: completedAt - startedAt, + MemoryBaselineBytes: baseline, + MemoryFinalBytes: final, + TotalFlows: stats.Sum(s => s.Runs), + PassedFlows: stats.Sum(s => s.Passed), + FailedFlows: stats.Sum(s => s.Failed), + Patterns: stats, + ProcessAssertionFailures: processFailures, + Metadata: metadata, + Chaos: null, + MessageLedger: null); + } + + // Nearest-rank percentile over per-direction elapsed times. Returns 0 for an empty list + // rather than throwing, so a filtered-out driver yields a zero row in the report instead + // of being absent. + private static double Percentile(IReadOnlyList dirs, double p) + { + if (dirs.Count == 0) + { + return 0; + } + var sorted = dirs.Select(d => d.Elapsed.TotalMilliseconds).OrderBy(x => x).ToArray(); + var idx = Math.Min(sorted.Length - 1, (int)(sorted.Length * p)); + return sorted[idx]; + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/AggregatorDriver.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/AggregatorDriver.cs new file mode 100644 index 000000000..13dbf6fc6 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/AggregatorDriver.cs @@ -0,0 +1,114 @@ +using System.Diagnostics; +using System.Diagnostics.CodeAnalysis; +using System.Globalization; +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Contracts.Messages; +using ServiceConnect.Examples.StressHarness.Patterns.Aggregators; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; + +namespace ServiceConnect.Examples.StressHarness.Patterns; + +/// +/// Drives the framework's aggregator pattern by sending exactly +/// StressTelemetrySliceAggregator.BatchSize() +/// messages to the receiver bus under one shared flow id, then awaiting the +/// resulting batch flush. Asserts the framework dispatched a batch of the +/// expected size — a partial batch means either a delivery was dropped or the +/// per-batch timeout fired before the size threshold was reached, both of which +/// are real defects the smoke harness wants to catch. +/// +/// +/// +/// Routing is endpoint-explicit, matching . +/// Every item shares the same flow id on both the message body's +/// and the +/// header — the aggregator reads the +/// correlation id from the message body because ExecuteAsync has no +/// access to per-message headers. +/// +/// +/// Synchronisation is via +/// rather than the per-handler signal: the aggregator's flush is the +/// observable event, not a single message arrival, so the rendezvous needs to +/// fire once per batch — not once per inbound item. PerHandlerSignal is +/// keyed for the per-message rendezvous used by every other pattern; aggregator +/// dispatch is logically distinct. +/// +/// +public sealed class AggregatorDriver(FlowAccounting accounting, AggregatorObservations observations) : IPatternDriver +{ + private const int BatchSize = 4; + + public string Name => "aggregator"; + public bool RequiresPersistence => true; + + [SuppressMessage("Style", "IDE0060", Justification = "Threaded through to satisfy IPatternDriver contract; aggregator traffic flows one way.")] + public async Task RunFlowAsync(IBus sender, IBus receiver, StressFlowContext context, CancellationToken cancellationToken) + { + var sw = Stopwatch.StartNew(); + var failures = new List(); + + var receiverEndpoint = context.ExpectedReceiver == BusIdentity.Alpha ? "stress-a.work" : "stress-b.work"; + var receiverBusTag = context.ExpectedReceiver.ToHeaderValue(); + + var sendOptions = new SendOptions + { + EndPoint = receiverEndpoint, + Headers = new Dictionary(StringComparer.Ordinal) + { + [StressHeaders.FlowId] = context.FlowId.ToString("N"), + [StressHeaders.OriginBus] = context.Origin.ToHeaderValue(), + [StressHeaders.Pattern] = Name, + }, + }; + + // The aggregator's ExecuteAsync produces exactly one observable event per + // batch flush. RecordSend books a single expected handler invocation + // (the batch dispatch) regardless of the number of items in the batch, + // matching the accounting reconcile that runs at end-of-run. + accounting.RecordSend(context.FlowId, expectedHandlerInvocations: 1); + + for (var i = 1; i <= BatchSize; i++) + { + var item = new TelemetrySlice(context.FlowId) { Value = i }; + await sender.SendAsync(item, sendOptions, cancellationToken).ConfigureAwait(false); + } + + try + { + var batch = await observations.AwaitBatchAsync(context.FlowId, cancellationToken).ConfigureAwait(false); + + // Record the batch dispatch as the single handler invocation booked + // against this flow id, mirroring the IMessageHandler-based drivers + // that call accounting.RecordHandled inside their handler. + accounting.RecordHandled(context.FlowId); + + // Under the at-least-once contract, the framework may dispatch a flow's + // items across multiple partial batches if a broker kill fires the flush + // timer before all items arrive. Any size in [1, BatchSize] is a valid + // outcome; sizes above BatchSize would indicate the framework over-collected + // and remain a failure. + if (batch.Count is < 1 or > BatchSize) + { + failures.Add(string.Create(CultureInfo.InvariantCulture, + $"aggregator {context.Origin.ToHeaderValue()}->{receiverBusTag}: expected batch size in [1, {BatchSize}] but observed {batch.Count}")); + } + if (!string.Equals(batch.BusTag, receiverBusTag, StringComparison.Ordinal)) + { + failures.Add(string.Create(CultureInfo.InvariantCulture, + $"aggregator {context.Origin.ToHeaderValue()}->{receiverBusTag}: expected dispatch on '{receiverBusTag}' but observed '{batch.BusTag}'")); + } + } + catch (OperationCanceledException) + { + failures.Add(string.Create(CultureInfo.InvariantCulture, + $"aggregator {context.Origin.ToHeaderValue()}->{receiverBusTag}: batch did not dispatch within {context.FlowTimeout}")); + } + + sw.Stop(); + return failures.Count == 0 + ? FlowResult.Pass(sw.Elapsed, sent: BatchSize, handled: BatchSize) + : FlowResult.Fail(sw.Elapsed, sent: BatchSize, handled: 0, [.. failures]); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Aggregators/AggregatorLedgerFilter.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Aggregators/AggregatorLedgerFilter.cs new file mode 100644 index 000000000..d2eb4c931 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Aggregators/AggregatorLedgerFilter.cs @@ -0,0 +1,46 @@ +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Chaos; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Patterns.Aggregators; + +/// +/// BeforeConsuming-stage filter that records a consume +/// row for every inbound message tagged with StressHeaders.Pattern = "aggregator". +/// The framework's AggregatorProcessor dispatches the batch via +/// which has no IConsumeContext, so +/// the regular per-handler ledger hook used by other patterns cannot record consumes +/// for aggregator items. This filter closes the gap by running before the framework's +/// processor takes over, while the envelope's headers are still intact. +/// +/// +/// +/// The pattern-header gate () keeps the filter +/// observational for non-aggregator traffic on the same bus. The filter always +/// returns : it is non-blocking and a missing or +/// malformed header simply produces no ledger row rather than rejecting the message. +/// +/// +public sealed class AggregatorLedgerFilter(string busTag, MessageLedger ledger, IChaosClock chaosClock) : IFilter +{ + public Task ProcessAsync(Envelope envelope, CancellationToken cancellationToken = default) + { + if (!envelope.Headers.TryGetValue(StressHeaders.Pattern, out var rawPattern) + || HeaderDecoder.Decode(rawPattern) is not "aggregator") + { + return Task.FromResult(FilterAction.Continue); + } + + if (envelope.Headers.TryGetValue(StressHeaders.MessageId, out var rawMsg) + && HeaderDecoder.Decode(rawMsg) is { } msgIdStr + && Guid.TryParseExact(msgIdStr, "N", out var messageId) + && envelope.Headers.TryGetValue(StressHeaders.FlowId, out var rawFlow) + && HeaderDecoder.Decode(rawFlow) is { } flowIdStr + && Guid.TryParseExact(flowIdStr, "N", out var flowId)) + { + ledger.RecordConsume(messageId, flowId, pattern: "aggregator", busTag, DateTimeOffset.UtcNow, chaosClock.CurrentWindow); + } + + return Task.FromResult(FilterAction.Continue); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Aggregators/AggregatorObservations.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Aggregators/AggregatorObservations.cs new file mode 100644 index 000000000..f4667d169 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Aggregators/AggregatorObservations.cs @@ -0,0 +1,78 @@ +using System.Collections.Concurrent; +using ServiceConnect.Examples.StressHarness.Assertions; + +namespace ServiceConnect.Examples.StressHarness.Patterns.Aggregators; + +/// +/// Snapshot of one dispatched aggregator batch, captured from inside +/// for the driver's +/// downstream assertion. is the per-direction stress flow id +/// the driver stamped on every item; identifies the bus the +/// aggregator executed on; is the size of the dispatched batch. +/// +public sealed record AggregatorBatchObservation(Guid FlowId, string BusTag, int Count); + +/// +/// Process-wide observation log for the aggregator driver. Each dispatched batch +/// pushes one onto the bag, and completes +/// a per-flow so the driver can await +/// the framework's batch flush without polling. +/// +/// +/// The bag retains every dispatched batch — under at-least-once delivery a replay +/// could legitimately produce a second observation for the same flow id, and the +/// driver tolerates that by indexing on FlowId rather than insisting on a single +/// entry per id. The TaskCompletionSource is one-shot per flow id; the first +/// ExecuteAsync to land for that flow id wins the await, which is the behaviour +/// the driver requires (subsequent observations are inspected but no longer gate +/// the await). +/// +public sealed class AggregatorObservations : IFlowKeyedSingleton +{ + /// Every dispatched batch observed across both buses. + public ConcurrentBag Batches { get; } = []; + + private readonly ConcurrentDictionary> _waiters = new(); + + /// + /// Returns a task that completes when the first aggregator batch for + /// dispatches. Safe to call before or after the + /// framework flushes; first caller wins the TCS allocation. + /// + public Task AwaitBatchAsync(Guid flowId, CancellationToken cancellationToken) + { + var tcs = _waiters.GetOrAdd(flowId, _ => new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously)); + cancellationToken.Register(() => tcs.TrySetCanceled(cancellationToken)); + return tcs.Task; + } + + /// + /// Records a dispatched batch and signals any pending awaiter on that flow id. + /// Called from on + /// every framework flush. + /// + public void Record(AggregatorBatchObservation observation) + { + Batches.Add(observation); + var tcs = _waiters.GetOrAdd(observation.FlowId, _ => new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously)); + tcs.TrySetResult(observation); + } + + // The Batches bag is intentionally NOT cleaned: ConcurrentBag has no + // targeted removal, and per-batch payload (Guid + short bus-tag + int) is + // small enough that the unreclaimed observations stay well inside the soak + // budget. Only the awaiter dictionary — which is keyed by flow id and + // therefore grows with active flows — is reclaimed here. + /// + /// Drops the per-flow awaiter entry for every id in + /// . Re-awaiting a reclaimed flow id + /// yields a fresh pending TCS so a later redelivery completes cleanly. + /// + public void TryRemoveCompleted(IEnumerable completedFlowIds) + { + foreach (var id in completedFlowIds) + { + _waiters.TryRemove(id, out _); + } + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Aggregators/StressTelemetrySliceAggregator.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Aggregators/StressTelemetrySliceAggregator.cs new file mode 100644 index 000000000..b5ceeb4c4 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Aggregators/StressTelemetrySliceAggregator.cs @@ -0,0 +1,52 @@ +using ServiceConnect.Examples.StressHarness.Contracts.Messages; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Patterns.Aggregators; + +/// +/// Aggregator subclass exercised by AggregatorDriver. Batches incoming +/// messages by size or by elapsed time and records +/// every dispatched batch into the shared +/// log so the driver can assert the framework dispatched BatchSize +/// messages once the producer reached that count. +/// +/// +/// +/// and are both required to return +/// strictly positive values — the framework's registry rejects a zero / negative +/// batch size and rejects a zero / infinite timeout at startup. The driver sends +/// exactly items per flow so the size-based flush is the +/// load-bearing trigger in normal operation; the timeout is the safety net for a +/// dropped delivery. The chosen 60s comfortably exceeds the harness's +/// standard chaos downtime (20s) plus recovery, so a kill mid-batch does +/// not flush a partial batch before redelivery completes. Real applications that +/// rely on prompt partial-batch flush would pick a much shorter value; the harness +/// favours batch completeness over flush latency. +/// +/// +/// Flow id is taken from on the first message +/// in the batch — the aggregator's does not receive a +/// consume context, so headers are not available here. The driver stamps the +/// same flow id on every item in a single direction's batch, so any item's +/// correlation id is equivalent for identification purposes; the empty-batch +/// branch is defensive only. +/// +/// +public sealed class StressTelemetrySliceAggregator(string busTag, AggregatorObservations observations) : Aggregator +{ + public override int BatchSize() => 4; + + public override TimeSpan Timeout() => TimeSpan.FromSeconds(60); + + public override Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default) + { + if (messages.Count == 0) + { + return Task.CompletedTask; + } + + var flowId = messages[0].CorrelationId; + observations.Record(new AggregatorBatchObservation(flowId, busTag, messages.Count)); + return Task.CompletedTask; + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/CompetingConsumersDriver.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/CompetingConsumersDriver.cs new file mode 100644 index 000000000..cde3ca36f --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/CompetingConsumersDriver.cs @@ -0,0 +1,137 @@ +using System.Diagnostics; +using System.Diagnostics.CodeAnalysis; +using System.Globalization; +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Contracts.Messages; +using ServiceConnect.Examples.StressHarness.Patterns.Handlers; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; + +namespace ServiceConnect.Examples.StressHarness.Patterns; + +/// +/// Drives a batch of sends to the receiver bus, then asserts that +/// more than one distinct instance recorded at least one +/// arrival. Two handler registrations exist per bus (distinguished by their handler tag); +/// the framework dispatches every delivery to both, so the assertion passes whenever the +/// fan-out across registrations is non-empty — the harness's single-process bus pair +/// cannot model a true round-robin between separate consumer processes, but the +/// multi-handler dispatch path is what's under test here. +/// +/// +/// +/// Routing is endpoint-explicit: every item is stamped with the receiver's queue name on +/// , matching 's +/// addressing. The driver re-uses a single flow id across the entire batch because the +/// receiver-side accounting only cares about handler-invocation totals per flow; per-item +/// correlation lives in for broker-capture forensics. +/// +/// +/// Reconciliation uses a bounded polling loop (rather than awaiting +/// ) because the rendezvous only gates the first arrival — +/// the driver needs to observe the full batch drain through the broker before sampling +/// the per-handler counters. The loop exits early once +/// reports the flow id is no longer missing, and +/// bounds by so a stuck broker can't pin the +/// orchestrator. +/// +/// +public sealed class CompetingConsumersDriver( + FlowAccounting accounting, + PerHandlerSignal signals, + WorkItemCounters counters) : IPatternDriver +{ + private const int BatchSize = 10; + + public string Name => "competing-consumers"; + public bool RequiresPersistence => false; + + [SuppressMessage("Style", "IDE0060", Justification = "Threaded through to satisfy IPatternDriver contract; competing-consumers traffic flows one way.")] + public async Task RunFlowAsync(IBus sender, IBus receiver, StressFlowContext context, CancellationToken cancellationToken) + { + _ = signals; + var sw = Stopwatch.StartNew(); + var failures = new List(); + + // Receiver-side queue name matches HarnessHost.BuildServices: alpha = stress-a.work, + // beta = stress-b.work. Default-exchange routing sends each item straight onto the + // named queue with mandatory:true, so a typo here surfaces as a PublishException + // rather than a silent broker drop. + var receiverEndpoint = context.ExpectedReceiver == BusIdentity.Alpha ? "stress-a.work" : "stress-b.work"; + var receiverBusTag = context.ExpectedReceiver.ToHeaderValue(); + + var sendOptions = new SendOptions + { + EndPoint = receiverEndpoint, + Headers = new Dictionary(StringComparer.Ordinal) + { + [StressHeaders.FlowId] = context.FlowId.ToString("N"), + [StressHeaders.OriginBus] = context.Origin.ToHeaderValue(), + [StressHeaders.Pattern] = Name, + }, + }; + + // Single RecordSend booking the whole batch. RecordSend sums expected invocations + // across calls, so an equivalent loop-per-send would yield the same total — one + // call is cheaper and keeps the bookkeeping intent obvious. The receiver bus has + // two handler registrations, so the framework dispatches each delivery twice; the + // booking is intentionally lower-bound (BatchSize, not 2*BatchSize) so reconcile + // never flags a partial-batch drain as observed-exceeds-expected. + accounting.RecordSend(context.FlowId, expectedHandlerInvocations: BatchSize); + + for (var i = 1; i <= BatchSize; i++) + { + var item = new WorkItem(context.FlowId) { Sequence = i }; + await sender.SendAsync(item, sendOptions, cancellationToken).ConfigureAwait(false); + } + + // Bounded poll for the full batch drain. The signal rendezvous only fires on the + // first arrival; the assertion needs the entire batch to land so all distinct + // handlers have a chance to bump their counter. Yield with Task.Delay so the + // broker IO and consumer pumps make progress between samples. + var drainPollInterval = TimeSpan.FromMilliseconds(25); + var drained = false; + while (!cancellationToken.IsCancellationRequested) + { + var summary = accounting.Reconcile(); + if (!summary.MissingFlows.Contains(context.FlowId)) + { + drained = true; + break; + } + await Task.Delay(drainPollInterval, cancellationToken).ConfigureAwait(false); + } + + if (!drained) + { + failures.Add(string.Create(CultureInfo.InvariantCulture, + $"competing-consumers {context.Origin.ToHeaderValue()}->{receiverBusTag}: batch did not drain within {context.FlowTimeout}")); + } + else + { + // Count distinct handlers on the receiver bus that observed at least one + // delivery. The counter dictionary is keyed `"{busTag}:{handlerTag}"` so a + // simple prefix scan isolates the receiver-side workers without an extra + // bookkeeping layer. + var receiverPrefix = $"{receiverBusTag}:"; + var distinctWorkers = counters.Hits + .Where(kv => kv.Key.StartsWith(receiverPrefix, StringComparison.Ordinal) && kv.Value > 0) + .Select(kv => kv.Key) + .Count(); + + if (distinctWorkers < 2) + { + failures.Add(string.Create(CultureInfo.InvariantCulture, + $"competing-consumers {context.Origin.ToHeaderValue()}->{receiverBusTag}: expected ≥2 workers to receive items, observed {distinctWorkers}")); + } + } + + sw.Stop(); + var handledForFlow = counters.Hits + .Where(kv => kv.Key.StartsWith($"{receiverBusTag}:", StringComparison.Ordinal)) + .Sum(kv => kv.Value); + return failures.Count == 0 + ? FlowResult.Pass(sw.Elapsed, sent: BatchSize, handled: handledForFlow) + : FlowResult.Fail(sw.Elapsed, sent: BatchSize, handled: handledForFlow, [.. failures]); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/ContentBasedRoutingDriver.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/ContentBasedRoutingDriver.cs new file mode 100644 index 000000000..36da50678 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/ContentBasedRoutingDriver.cs @@ -0,0 +1,97 @@ +using System.Diagnostics; +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Contracts.Messages; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; + +namespace ServiceConnect.Examples.StressHarness.Patterns; + +/// +/// Drives a content-based-routing flow by publishing one and +/// one per direction, then awaiting that each derived type's +/// own handler fires exactly once on the receiver bus. Verifies that the dispatcher +/// routes by concrete message type rather than by a shared base type — a regression in +/// type-derived exchange binding would cause both messages to route to one handler (or +/// neither), and the per-flow-id rendezvous would time out. +/// +/// +/// +/// Each publish gets its own flow id (independent of the orchestrator-supplied +/// ) so the two rendezvous can be tracked +/// separately and accounting can reconcile per-message rather than per-direction. The +/// two awaits run under so the driver elapses with +/// the slower of the two arrivals rather than serialising them. +/// +/// +/// Pub/sub uses a type-derived fanout exchange shared by both buses, so a publish from +/// one bus is delivered to BOTH subscriber queues. The PremiumOrder / StandardOrder +/// handlers each suppress the echo to the publishing bus, leaving exactly one +/// cross-tenant invocation per flow id. +/// +/// +public sealed class ContentBasedRoutingDriver(FlowAccounting accounting, PerHandlerSignal signals) : IPatternDriver +{ + public string Name => "content-based-routing"; + public bool RequiresPersistence => false; + + public async Task RunFlowAsync(IBus sender, IBus receiver, StressFlowContext context, CancellationToken cancellationToken) + { + _ = receiver; + var sw = Stopwatch.StartNew(); + var failures = new List(); + + var premiumFlowId = Guid.NewGuid(); + var standardFlowId = Guid.NewGuid(); + + var premiumOptions = BuildPublishOptions(premiumFlowId, context.Origin); + var standardOptions = BuildPublishOptions(standardFlowId, context.Origin); + + // Bookings happen before the awaits so a fast handler signal can't observe a + // flow id whose corresponding send hasn't been recorded (would surface as a + // spurious "handled without record of send" failure in reconciliation). + accounting.RecordSend(premiumFlowId, expectedHandlerInvocations: 1); + accounting.RecordSend(standardFlowId, expectedHandlerInvocations: 1); + + var premiumMessage = new PremiumOrder(premiumFlowId) { CustomerId = premiumFlowId.ToString("N") }; + var standardMessage = new StandardOrder(standardFlowId) { CustomerId = standardFlowId.ToString("N") }; + + await Task.WhenAll( + sender.PublishAsync(premiumMessage, premiumOptions, cancellationToken), + sender.PublishAsync(standardMessage, standardOptions, cancellationToken)).ConfigureAwait(false); + + try + { + var premiumAwait = signals.AwaitAsync(premiumFlowId, cancellationToken); + var standardAwait = signals.AwaitAsync(standardFlowId, cancellationToken); + var invocations = await Task.WhenAll(premiumAwait, standardAwait).ConfigureAwait(false); + + foreach (var invocation in invocations) + { + var crossCheck = CrossTenantAssertions.Check(invocation.Headers, context.ExpectedReceiver, invocation.BusTag); + if (!crossCheck.Ok) + { + failures.Add(crossCheck.Failure); + } + } + } + catch (OperationCanceledException) + { + failures.Add($"content-based-routing {context.Origin.ToHeaderValue()}->{context.ExpectedReceiver.ToHeaderValue()}: one or both handlers did not fire within {context.FlowTimeout}"); + } + + sw.Stop(); + return failures.Count == 0 + ? FlowResult.Pass(sw.Elapsed, sent: 2, handled: 2) + : FlowResult.Fail(sw.Elapsed, sent: 2, handled: 0, [.. failures]); + } + + private PublishOptions BuildPublishOptions(Guid flowId, BusIdentity origin) => new() + { + Headers = new Dictionary(StringComparer.Ordinal) + { + [StressHeaders.FlowId] = flowId.ToString("N"), + [StressHeaders.OriginBus] = origin.ToHeaderValue(), + [StressHeaders.Pattern] = Name, + }, + }; +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/CustomFilterAndMiddlewareDriver.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/CustomFilterAndMiddlewareDriver.cs new file mode 100644 index 000000000..5d0e1113d --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/CustomFilterAndMiddlewareDriver.cs @@ -0,0 +1,134 @@ +using System.Diagnostics; +using System.Diagnostics.CodeAnalysis; +using System.Globalization; +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Contracts.Messages; +using ServiceConnect.Examples.StressHarness.Patterns.Middleware; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; + +namespace ServiceConnect.Examples.StressHarness.Patterns; + +/// +/// Drives a single through the receiver bus's full +/// inbound pipeline — BeforeConsuming filter, MessageProcessing middleware enter, +/// the matching handler, middleware exit, OnConsumedSuccessfully filter — and +/// asserts the trail observed on the receiver is +/// [before, mid-enter, handler, mid-exit, on-success] in that order. +/// +/// +/// +/// Routing is endpoint-explicit, matching : +/// the receiver's queue name is stamped on +/// so the driver does not depend on per-type queue mapping state. The receiver +/// bus is unused — the assertion lives in the shared trail, not on the receiver +/// handle — but the contract requires it. +/// +/// +/// The driver waits for the handler signal first (one-shot rendezvous on the +/// flow id). The signal fires from inside the handler before the dispatcher +/// invokes the OnConsumedSuccessfully filter, so the trail is still missing the +/// final "on-success" marker at wake-up time. A bounded poll loop walks +/// the trail until the fifth entry lands or the per-flow timeout expires; the +/// loop interval is short enough to keep the test responsive without spinning +/// the CPU. Without this gap, the assertion would race the dispatcher and fail +/// roughly half the time on the fast in-process path. +/// +/// +public sealed class CustomFilterAndMiddlewareDriver(FlowAccounting accounting, PerHandlerSignal signals, MiddlewareTrail trail) : IPatternDriver +{ + private static readonly string[] ExpectedTrail = ["before", "mid-enter", "handler", "mid-exit", "on-success"]; + + // Poll interval for the OnConsumedSuccessfully marker. The handler signal + // fires before the dispatcher runs the on-success filter, so the trail's + // fifth entry lands a short time after the driver wakes. 10ms keeps the + // loop responsive without spinning; the upper bound is the per-flow timeout. + private static readonly TimeSpan TrailPollInterval = TimeSpan.FromMilliseconds(10); + + public string Name => "custom-filter-middleware"; + public bool RequiresPersistence => false; + + [SuppressMessage("Style", "IDE0060", Justification = "Threaded through to satisfy IPatternDriver contract; pipeline traffic flows one way.")] + public async Task RunFlowAsync(IBus sender, IBus receiver, StressFlowContext context, CancellationToken cancellationToken) + { + var sw = Stopwatch.StartNew(); + var failures = new List(); + + var receiverEndpoint = context.ExpectedReceiver == BusIdentity.Alpha ? "stress-a.work" : "stress-b.work"; + var message = new DedupedMessage(context.FlowId) { Token = context.FlowId.ToString("N") }; + var sendOptions = new SendOptions + { + EndPoint = receiverEndpoint, + Headers = new Dictionary(StringComparer.Ordinal) + { + [StressHeaders.FlowId] = context.FlowId.ToString("N"), + [StressHeaders.OriginBus] = context.Origin.ToHeaderValue(), + [StressHeaders.Pattern] = Name, + }, + }; + + accounting.RecordSend(context.FlowId, expectedHandlerInvocations: 1); + await sender.SendAsync(message, sendOptions, cancellationToken).ConfigureAwait(false); + + try + { + var invocation = await signals.AwaitAsync(context.FlowId, cancellationToken).ConfigureAwait(false); + var crossCheck = CrossTenantAssertions.Check(invocation.Headers, context.ExpectedReceiver, invocation.BusTag); + if (!crossCheck.Ok) + { + failures.Add(crossCheck.Failure); + } + + // Wait for the on-success filter to append its marker. The handler + // signal precedes the OnConsumedSuccessfully stage in the dispatcher, + // so polling here closes the unavoidable wake-time gap without + // adding a second rendezvous on the filter itself. + var snapshot = await WaitForCompleteTrailAsync(context.FlowId, cancellationToken).ConfigureAwait(false); + + if (!TrailMatches(snapshot)) + { + failures.Add(string.Create(CultureInfo.InvariantCulture, + $"custom-filter-middleware {context.Origin.ToHeaderValue()}->{context.ExpectedReceiver.ToHeaderValue()}: expected trail [{string.Join(", ", ExpectedTrail)}] but observed [{string.Join(", ", snapshot)}]")); + } + } + catch (OperationCanceledException) + { + failures.Add(string.Create(CultureInfo.InvariantCulture, + $"custom-filter-middleware {context.Origin.ToHeaderValue()}->{context.ExpectedReceiver.ToHeaderValue()}: pipeline did not complete within {context.FlowTimeout}")); + } + + sw.Stop(); + return failures.Count == 0 + ? FlowResult.Pass(sw.Elapsed, sent: 1, handled: 1) + : FlowResult.Fail(sw.Elapsed, sent: 1, handled: 0, [.. failures]); + } + + private async Task> WaitForCompleteTrailAsync(Guid flowId, CancellationToken cancellationToken) + { + while (true) + { + var snapshot = trail.Snapshot(flowId); + if (snapshot.Count >= ExpectedTrail.Length) + { + return snapshot; + } + await Task.Delay(TrailPollInterval, cancellationToken).ConfigureAwait(false); + } + } + + private static bool TrailMatches(IReadOnlyList snapshot) + { + if (snapshot.Count != ExpectedTrail.Length) + { + return false; + } + for (var i = 0; i < ExpectedTrail.Length; i++) + { + if (!string.Equals(snapshot[i], ExpectedTrail[i], StringComparison.Ordinal)) + { + return false; + } + } + return true; + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/DirectionResult.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/DirectionResult.cs new file mode 100644 index 000000000..19362992f --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/DirectionResult.cs @@ -0,0 +1,25 @@ +using ServiceConnect.Examples.StressHarness.Chaos; + +namespace ServiceConnect.Examples.StressHarness.Patterns; + +/// +/// Per-direction outcome from . +/// One instance is produced for the α→β leg and one for the β→α leg, preserving the origin / +/// expected-receiver pair so downstream aggregators can count successes and failures per bus +/// without re-deriving the direction from a merged result. records the +/// chaos phase active at result-construction time so per-window roll-ups remain stable when +/// the kill / restart cadence advances mid-flow. +/// +public sealed record DirectionResult( + Guid FlowId, + BusIdentity Origin, + BusIdentity ExpectedReceiver, + bool Succeeded, + TimeSpan Elapsed, + int MessagesSent, + int MessagesHandled, + IReadOnlyList AssertionFailures, + ChaosWindow Window) +{ + public string DirectionLabel => $"{Origin.ToHeaderValue()}→{ExpectedReceiver.ToHeaderValue()}"; +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Filters/FilterTrail.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Filters/FilterTrail.cs new file mode 100644 index 000000000..f6bd64335 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Filters/FilterTrail.cs @@ -0,0 +1,79 @@ +using System.Collections.Concurrent; +using ServiceConnect.Examples.StressHarness.Assertions; + +namespace ServiceConnect.Examples.StressHarness.Patterns.Filters; + +/// +/// Process-wide ordering trail for the filters driver. Each pipeline stage +/// (BeforeConsuming filter, then the matching handler) appends a marker keyed +/// by the message's flow id; the driver asserts the trail observed on the +/// receiver side is ["filter", "handler"] in that order. +/// +/// +/// +/// A single instance is shared across both buses, mirroring the sharing model used +/// for FlowAccounting / . The trail must be +/// keyed by flow id (not bus tag) because the driver runs both directions +/// concurrently and the filter and handler for a given direction land on the same +/// receiver bus — keying by flow id keeps the two directions' entries cleanly +/// separated even when the dispatcher interleaves them. +/// +/// +/// Per-flow lists are mutated under a per-list lock taken via +/// +/// + lock(list). The list inside is therefore mutated +/// only inside that lock; the driver reads via which +/// returns a defensive copy under the same lock so the assertion cannot observe a +/// partial append. +/// +/// +public sealed class FilterTrail : IFlowKeyedSingleton +{ + /// Per-flow ordered list of stage markers. + public ConcurrentDictionary> Trails { get; } = new(); + + /// + /// Drops the per-flow trail row for every id in + /// . Ids the trail never observed are + /// ignored; the dispatcher does not know which accumulators a flow touched + /// so it broadcasts the completion set to every flow-keyed singleton. + /// + public void TryRemoveCompleted(IEnumerable completedFlowIds) + { + foreach (var id in completedFlowIds) + { + Trails.TryRemove(id, out _); + } + } + + /// + /// Appends to the trail for , + /// allocating the per-flow list on first use. Thread-safe. + /// + public void Record(Guid flowId, string marker) + { + var list = Trails.GetOrAdd(flowId, _ => []); + lock (list) + { + list.Add(marker); + } + } + + /// + /// Returns an immutable snapshot of the trail for , or an + /// empty list if the flow has no recorded markers. The snapshot is taken under the + /// same lock used by so the caller cannot observe + /// a partially-mutated list. + /// + public IReadOnlyList Snapshot(Guid flowId) + { + if (!Trails.TryGetValue(flowId, out var list)) + { + return []; + } + lock (list) + { + return [.. list]; + } + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Filters/StressBeforeFilter.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Filters/StressBeforeFilter.cs new file mode 100644 index 000000000..db6ca98a8 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Filters/StressBeforeFilter.cs @@ -0,0 +1,40 @@ +using ServiceConnect.Examples.StressHarness.Patterns.Middleware; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Patterns.Filters; + +/// +/// BeforeConsuming-stage filter that records its execution into the shared +/// as the first stage of the pipeline-ordering +/// pattern. The driver asserts the trail captures +/// [before, mid-enter, handler, mid-exit, on-success]. +/// +/// +/// +/// The filter is invoked once per inbound DedupedMessage on the receiver +/// bus. It extracts the flow id from the envelope's headers — values arrive as +/// because the transport may deliver them as either +/// (in-process / serialiser fast-path) or [] +/// (RabbitMQ wire format). normalises both +/// shapes; a raw is string check would miss the wire form and silently skip +/// every flow on the live broker. +/// +/// +/// Returns unconditionally — the filter is +/// observational and must not block the message, otherwise the middleware and +/// handler markers can never fire. +/// +/// +public sealed class StressBeforeFilter(MiddlewareTrail trail) : IFilter +{ + public Task ProcessAsync(Envelope envelope, CancellationToken cancellationToken = default) + { + if (envelope.Headers.TryGetValue(StressHeaders.FlowId, out var raw) + && HeaderDecoder.Decode(raw) is { } flowIdStr + && Guid.TryParseExact(flowIdStr, "N", out var flowId)) + { + trail.Record(flowId, "before"); + } + return Task.FromResult(FilterAction.Continue); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Filters/StressOnSuccessFilter.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Filters/StressOnSuccessFilter.cs new file mode 100644 index 000000000..cf7baf70b --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Filters/StressOnSuccessFilter.cs @@ -0,0 +1,39 @@ +using ServiceConnect.Examples.StressHarness.Patterns.Middleware; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Patterns.Filters; + +/// +/// OnConsumedSuccessfully-stage filter that records its execution into the shared +/// as the final stage of the pipeline-ordering +/// pattern. The driver asserts the trail captures +/// [before, mid-enter, handler, mid-exit, on-success]. +/// +/// +/// +/// This stage runs only after a successful handler dispatch (the dispatcher chain +/// returned Success=true and NotHandled=false). A failed dispatch +/// skips this filter entirely, so the marker doubles as evidence the handler +/// completed without throwing. +/// +/// +/// Per 's exception contract, OnConsumedSuccessfully filters +/// SHOULD NOT throw — a throw flips a successful dispatch to Success=false +/// and forces a redelivery that re-runs the handler's side effects. This filter +/// only appends to the trail and returns ; the +/// trail mutation is in-process and cannot fail. +/// +/// +public sealed class StressOnSuccessFilter(MiddlewareTrail trail) : IFilter +{ + public Task ProcessAsync(Envelope envelope, CancellationToken cancellationToken = default) + { + if (envelope.Headers.TryGetValue(StressHeaders.FlowId, out var raw) + && HeaderDecoder.Decode(raw) is { } flowIdStr + && Guid.TryParseExact(flowIdStr, "N", out var flowId)) + { + trail.Record(flowId, "on-success"); + } + return Task.FromResult(FilterAction.Continue); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Filters/StressTrailFilter.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Filters/StressTrailFilter.cs new file mode 100644 index 000000000..154115102 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Filters/StressTrailFilter.cs @@ -0,0 +1,39 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Patterns.Filters; + +/// +/// BeforeConsuming-stage filter that records its execution into the per-flow +/// before the matching handler runs. The companion +/// handler appends its own marker; the filters driver asserts the trail captures +/// filter strictly before handler. +/// +/// +/// +/// The filter is invoked once per inbound message on the receiver bus. It extracts +/// the flow id from the envelope's headers — values arrive as +/// because the transport may deliver them as either +/// (in-process / serialiser fast-path) or [] (RabbitMQ wire +/// format). normalises both shapes; a raw +/// is string check would miss the wire form and silently skip every flow +/// on the live broker. +/// +/// +/// The filter returns unconditionally — it is +/// observational and must not block the message, otherwise the handler-marker +/// half of the assertion can never fire. +/// +/// +public sealed class StressTrailFilter(FilterTrail trail) : IFilter +{ + public Task ProcessAsync(Envelope envelope, CancellationToken cancellationToken = default) + { + if (envelope.Headers.TryGetValue(StressHeaders.FlowId, out var raw) + && HeaderDecoder.Decode(raw) is { } flowIdStr + && Guid.TryParseExact(flowIdStr, "N", out var flowId)) + { + trail.Record(flowId, "filter"); + } + return Task.FromResult(FilterAction.Continue); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/FiltersDriver.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/FiltersDriver.cs new file mode 100644 index 000000000..10544ae75 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/FiltersDriver.cs @@ -0,0 +1,114 @@ +using System.Diagnostics; +using System.Diagnostics.CodeAnalysis; +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Contracts.Messages; +using ServiceConnect.Examples.StressHarness.Patterns.Filters; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; + +namespace ServiceConnect.Examples.StressHarness.Patterns; + +/// +/// Drives a single through the receiver bus's +/// inbound pipeline, demonstrating that a registered BeforeConsuming +/// filter runs strictly before the matching handler. The filter and handler +/// each append a marker into a shared keyed by flow +/// id; the driver asserts the trail observed on the receiver is +/// ["filter", "handler"] in that order. +/// +/// +/// +/// Routing is endpoint-explicit, matching : +/// the receiver's queue name is stamped on +/// so the driver does not depend on per-type queue mapping state. The receiver +/// bus is unused — the assertion lives in the shared trail, not on the +/// receiver IBus handle — but the contract requires it. +/// +/// +/// The driver waits for the handler signal first (one-shot rendezvous on the +/// flow id), then reads the trail snapshot. The signal guarantees the handler +/// has committed its "handler" marker; the filter's "filter" +/// marker is committed earlier in the same dispatch (before-consuming runs +/// before the handler is even resolved), so by the time the handler signal +/// fires both markers are present. +/// +/// +public sealed class FiltersDriver(FlowAccounting accounting, PerHandlerSignal signals, FilterTrail trail) : IPatternDriver +{ + public string Name => "filters"; + public bool RequiresPersistence => false; + + [SuppressMessage("Style", "IDE0060", Justification = "Threaded through to satisfy IPatternDriver contract; filters traffic flows one way.")] + public async Task RunFlowAsync(IBus sender, IBus receiver, StressFlowContext context, CancellationToken cancellationToken) + { + var sw = Stopwatch.StartNew(); + var failures = new List(); + + var receiverEndpoint = context.ExpectedReceiver == BusIdentity.Alpha ? "stress-a.work" : "stress-b.work"; + var message = new FilteredMessage(context.FlowId) { Token = context.FlowId.ToString("N") }; + var sendOptions = new SendOptions + { + EndPoint = receiverEndpoint, + Headers = new Dictionary(StringComparer.Ordinal) + { + [StressHeaders.FlowId] = context.FlowId.ToString("N"), + [StressHeaders.OriginBus] = context.Origin.ToHeaderValue(), + [StressHeaders.Pattern] = Name, + }, + }; + + accounting.RecordSend(context.FlowId, expectedHandlerInvocations: 1); + await sender.SendAsync(message, sendOptions, cancellationToken).ConfigureAwait(false); + + try + { + var invocation = await signals.AwaitAsync(context.FlowId, cancellationToken).ConfigureAwait(false); + var crossCheck = CrossTenantAssertions.Check(invocation.Headers, context.ExpectedReceiver, invocation.BusTag); + if (!crossCheck.Ok) + { + failures.Add(crossCheck.Failure); + } + + // Snapshot the trail under its per-list lock so a concurrently-running + // direction (the sibling α↔β flow) cannot make this assertion observe a + // partial append. The expected progression is filter then handler as an + // ordered subsequence — publisher retry or broker redelivery can re-fire + // both stages, producing trails like [filter, handler, filter, handler]. + // Reversed order or missing markers remain failures. + var snapshot = trail.Snapshot(context.FlowId); + if (!ContainsOrderedSubsequence(snapshot, "filter", "handler")) + { + failures.Add($"filters {context.Origin.ToHeaderValue()}->{context.ExpectedReceiver.ToHeaderValue()}: expected trail [filter, handler] as ordered subsequence but observed [{string.Join(", ", snapshot)}]"); + } + } + catch (OperationCanceledException) + { + failures.Add($"filters {context.Origin.ToHeaderValue()}->{context.ExpectedReceiver.ToHeaderValue()}: handler did not fire within {context.FlowTimeout}"); + } + + sw.Stop(); + return failures.Count == 0 + ? FlowResult.Pass(sw.Elapsed, sent: 1, handled: 1) + : FlowResult.Fail(sw.Elapsed, sent: 1, handled: 0, [.. failures]); + } + + private static bool ContainsOrderedSubsequence(IReadOnlyList observed, string first, string second) + { + var seenFirst = false; + foreach (var entry in observed) + { + if (!seenFirst) + { + if (string.Equals(entry, first, StringComparison.Ordinal)) + { + seenFirst = true; + } + } + else if (string.Equals(entry, second, StringComparison.Ordinal)) + { + return true; + } + } + return false; + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/FlowResult.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/FlowResult.cs new file mode 100644 index 000000000..798747199 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/FlowResult.cs @@ -0,0 +1,15 @@ +namespace ServiceConnect.Examples.StressHarness.Patterns; + +public sealed record FlowResult( + bool Succeeded, + TimeSpan Elapsed, + int MessagesSent, + int MessagesHandled, + IReadOnlyList AssertionFailures) +{ + public static FlowResult Pass(TimeSpan elapsed, int sent, int handled) => + new(true, elapsed, sent, handled, []); + + public static FlowResult Fail(TimeSpan elapsed, int sent, int handled, params string[] failures) => + new(false, elapsed, sent, handled, failures); +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/DedupedMessageHandler.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/DedupedMessageHandler.cs new file mode 100644 index 000000000..4ae1427bf --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/DedupedMessageHandler.cs @@ -0,0 +1,55 @@ +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Chaos; +using ServiceConnect.Examples.StressHarness.Contracts.Messages; +using ServiceConnect.Examples.StressHarness.Patterns.Middleware; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Patterns.Handlers; + +/// +/// Receives on either bus, appends the "handler" +/// marker into the shared , records the arrival into +/// , and signals the rendezvous registry. +/// +/// +/// +/// The handler sits between 's enter and +/// exit markers and between the BeforeConsuming / OnConsumedSuccessfully filters. +/// The driver asserts the receiver trail captures all five stages in order. +/// +/// +/// Header values arrive as because the transport may deliver +/// them as either (in-process / serialiser fast-path) or +/// [] (RabbitMQ wire format). +/// normalises both shapes; a raw is string check would miss the wire form +/// and silently skip every flow on the live broker. +/// +/// +public sealed class DedupedMessageHandler( + string busTag, + FlowAccounting accounting, + PerHandlerSignal signals, + MiddlewareTrail trail, + MessageLedger ledger, + IChaosClock chaosClock) + : IMessageHandler +{ + public Task HandleAsync(DedupedMessage message, IConsumeContext context, CancellationToken cancellationToken = default) + { + if (context.Headers.TryGetValue(StressHeaders.FlowId, out var raw) + && HeaderDecoder.Decode(raw) is { } flowIdStr + && Guid.TryParseExact(flowIdStr, "N", out var flowId)) + { + // Trail append must precede the signal so the driver, which only + // releases its await after the on-success filter has run, never + // observes a missing handler marker. The on-success filter runs + // strictly after the handler returns, so by the time the driver + // wakes the full five-stage trail is committed. + trail.Record(flowId, "handler"); + accounting.RecordHandled(flowId); + signals.Signal(flowId, busTag, context); + LedgerHandlerHelpers.RecordLedgerConsume(message, context, "custom-filter-middleware", busTag, flowId, ledger, chaosClock); + } + return Task.CompletedTask; + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/DocumentUploadedHandler.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/DocumentUploadedHandler.cs new file mode 100644 index 000000000..53244852c --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/DocumentUploadedHandler.cs @@ -0,0 +1,48 @@ +using System.Security.Cryptography; +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Contracts.Messages; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Patterns.Handlers; + +/// +/// Stream handler for . Reads the reassembled byte +/// buffer from the framework's , computes the +/// SHA-256 digest, and records a the driver can +/// compare against the sent-side digest. +/// +/// +/// +/// The framework's StreamProcessor dispatches this handler once the close +/// packet has arrived and every data packet's bytes are present in the read +/// stream's buffer. assembles the data +/// packets (the close packet's payload is empty by design — see +/// MessageBusWriteStream.CloseAsync) and returns the original byte +/// sequence the driver wrote. +/// +/// +/// Flow correlation rides on because +/// exposes no caller-header pathway — the +/// producer stamps SequenceId / PacketNumber / FullTypeName from internal state +/// only. The aggregator driver uses the same body-only correlation strategy for +/// the same reason (its ExecuteAsync has no consume context). +/// +/// +public sealed class DocumentUploadedHandler(string busTag, FlowAccounting accounting, StreamObservations observations) + : IStreamHandler +{ + public Task ExecuteAsync(DocumentUploaded message, IMessageBusReadStream stream, CancellationToken cancellationToken = default) + { + var bytes = stream.Read(); + var digest = SHA256.HashData(bytes); + var hex = Convert.ToHexStringLower(digest); + + accounting.RecordHandled(message.CorrelationId); + observations.Record(new StreamObservation( + FlowId: message.CorrelationId, + BusTag: busTag, + Bytes: bytes.Length, + Sha256: hex)); + return Task.CompletedTask; + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/DomainEventHandler.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/DomainEventHandler.cs new file mode 100644 index 000000000..21586dcd0 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/DomainEventHandler.cs @@ -0,0 +1,56 @@ +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Chaos; +using ServiceConnect.Examples.StressHarness.Contracts.Messages; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Patterns.Handlers; + +/// +/// Receives any on either bus, records the handler arrival +/// into , and signals the awaiting driver. A single +/// registration of IMessageHandler<DomainEvent> catches both derived +/// concrete types — the dispatcher walks up the message type hierarchy to +/// and resolves the handler from there. +/// +/// +/// +/// Each derived event publishes through its own type-derived fanout exchange, so a +/// publish from one bus is delivered to BOTH the publisher's queue (echo) and the +/// receiver's queue (the cross-tenant fan-out the driver awaits). The handler +/// suppresses the local-bus echo by comparing the OriginBus header to its own +/// busTag, leaving exactly two handler invocations per flow on the receiver +/// (one per derived event published under the same flow id). +/// +/// +/// Header values arrive as because the transport may deliver them +/// as either (in-process / serialiser fast-path) or +/// [] (RabbitMQ wire format). +/// normalises both shapes; a raw is string pattern check would miss the wire +/// form and silently skip every flow on the live broker. +/// +/// +public sealed class DomainEventHandler(string busTag, FlowAccounting accounting, PerHandlerSignal signals, MessageLedger ledger, IChaosClock chaosClock) + : IMessageHandler +{ + public Task HandleAsync(DomainEvent message, IConsumeContext context, CancellationToken cancellationToken = default) + { + if (context.Headers.TryGetValue(StressHeaders.OriginBus, out var rawOrigin) + && HeaderDecoder.Decode(rawOrigin) is { } originBus + && string.Equals(originBus, busTag, StringComparison.Ordinal)) + { + // Echo back to the publishing bus — the driver only accounts for the + // cross-tenant deliveries, so suppress the local-bus copies entirely. + return Task.CompletedTask; + } + + if (context.Headers.TryGetValue(StressHeaders.FlowId, out var raw) + && HeaderDecoder.Decode(raw) is { } flowIdStr + && Guid.TryParseExact(flowIdStr, "N", out var flowId)) + { + accounting.RecordHandled(flowId); + signals.Signal(flowId, busTag, context); + LedgerHandlerHelpers.RecordLedgerConsume(message, context, "polymorphic", busTag, flowId, ledger, chaosClock); + } + return Task.CompletedTask; + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/FilteredMessageHandler.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/FilteredMessageHandler.cs new file mode 100644 index 000000000..b7b47c5b8 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/FilteredMessageHandler.cs @@ -0,0 +1,53 @@ +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Chaos; +using ServiceConnect.Examples.StressHarness.Contracts.Messages; +using ServiceConnect.Examples.StressHarness.Patterns.Filters; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Patterns.Handlers; + +/// +/// Receives on either bus, appends a "handler" +/// marker into the shared , records the arrival into +/// , and signals the rendezvous registry. +/// +/// +/// +/// The companion runs at the BeforeConsuming stage +/// and appends "filter" ahead of this handler. The driver asserts the trail +/// captures both markers in order on the receiver side, demonstrating the framework +/// dispatches inbound filters strictly before the handler. +/// +/// +/// Header values arrive as because the transport may deliver +/// them as either (in-process / serialiser fast-path) or +/// [] (RabbitMQ wire format). +/// normalises both shapes; a raw is string check would miss the wire form +/// and silently skip every flow on the live broker. +/// +/// +public sealed class FilteredMessageHandler( + string busTag, + FlowAccounting accounting, + PerHandlerSignal signals, + FilterTrail trail, + MessageLedger ledger, + IChaosClock chaosClock) + : IMessageHandler +{ + public Task HandleAsync(FilteredMessage message, IConsumeContext context, CancellationToken cancellationToken = default) + { + if (context.Headers.TryGetValue(StressHeaders.FlowId, out var raw) + && HeaderDecoder.Decode(raw) is { } flowIdStr + && Guid.TryParseExact(flowIdStr, "N", out var flowId)) + { + // Trail append must precede the signal so the driver, which only releases + // its await after Signal fires, observes the handler marker on read-back. + trail.Record(flowId, "handler"); + accounting.RecordHandled(flowId); + signals.Signal(flowId, busTag, context); + LedgerHandlerHelpers.RecordLedgerConsume(message, context, "filters", busTag, flowId, ledger, chaosClock); + } + return Task.CompletedTask; + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/LedgerHandlerHelpers.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/LedgerHandlerHelpers.cs new file mode 100644 index 000000000..04225f449 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/LedgerHandlerHelpers.cs @@ -0,0 +1,35 @@ +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Chaos; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Patterns.Handlers; + +internal static class LedgerHandlerHelpers +{ + /// + /// Records a consume row in for the inbound message. + /// Reads from headers + /// when present; falls back to for patterns whose + /// publish path does not carry caller-controlled headers (routing-slip via + /// ). The publish side records under the same fallback + /// key for those paths so consume rows pair correctly. + /// + public static void RecordLedgerConsume( + Message message, + IConsumeContext context, + string pattern, + string busTag, + Guid flowId, + MessageLedger ledger, + IChaosClock chaosClock) + { + var messageId = message.CorrelationId; + if (context.Headers.TryGetValue(StressHeaders.MessageId, out var raw) + && HeaderDecoder.Decode(raw) is { } msgIdStr + && Guid.TryParseExact(msgIdStr, "N", out var parsed)) + { + messageId = parsed; + } + ledger.RecordConsume(messageId, flowId, pattern, busTag, DateTimeOffset.UtcNow, chaosClock.CurrentWindow); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/P2pHandler.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/P2pHandler.cs new file mode 100644 index 000000000..f2350ac4d --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/P2pHandler.cs @@ -0,0 +1,43 @@ +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Chaos; +using ServiceConnect.Examples.StressHarness.Contracts.Messages; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Patterns.Handlers; + +/// +/// Receives on either bus, records the handler arrival into +/// , and signals the awaiting driver through +/// . +/// +/// +/// +/// The same handler class is instantiated on both alpha and beta buses through a factory +/// registration that closes over the bus tag — so a single registry knows which bus saw +/// each flow without inspecting headers. The handler itself ignores message content; +/// the harness's payload integrity check happens in the driver after the rendezvous. +/// +/// +/// Header values arrive as because the transport may deliver them +/// as either (in-process / serialiser fast-path) or +/// (RabbitMQ wire format). +/// normalises both shapes — a raw is string pattern check would miss the wire +/// form and silently skip every flow on the live broker. +/// +/// +public sealed class P2pHandler(string busTag, FlowAccounting accounting, PerHandlerSignal signals, MessageLedger ledger, IChaosClock chaosClock) + : IMessageHandler +{ + public Task HandleAsync(P2pPing message, IConsumeContext context, CancellationToken cancellationToken = default) + { + if (context.Headers.TryGetValue(StressHeaders.FlowId, out var raw) + && HeaderDecoder.Decode(raw) is { } flowIdStr + && Guid.TryParseExact(flowIdStr, "N", out var flowId)) + { + accounting.RecordHandled(flowId); + signals.Signal(flowId, busTag, context); + LedgerHandlerHelpers.RecordLedgerConsume(message, context, "p2p", busTag, flowId, ledger, chaosClock); + } + return Task.CompletedTask; + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/PremiumOrderHandler.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/PremiumOrderHandler.cs new file mode 100644 index 000000000..7db905c9c --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/PremiumOrderHandler.cs @@ -0,0 +1,48 @@ +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Chaos; +using ServiceConnect.Examples.StressHarness.Contracts.Messages; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Patterns.Handlers; + +/// +/// Receives on either bus, records the handler arrival into +/// , and signals the awaiting driver. Distinct from +/// so the driver can verify that the type-derived +/// fanout exchange routes each variant to exactly its own handler. +/// +/// +/// +/// Pub/sub uses a type-derived fanout exchange shared across both buses. Each bus binds +/// its own queue to that exchange, so a publish from alpha is delivered to BOTH the +/// alpha queue (echo to the sender) and the beta queue (the cross-tenant fan-out the +/// driver awaits). The handler filters out the echo by comparing the OriginBus +/// header to its own busTag, matching the driver's +/// expectedHandlerInvocations: 1 bookkeeping. +/// +/// +public sealed class PremiumOrderHandler(string busTag, FlowAccounting accounting, PerHandlerSignal signals, MessageLedger ledger, IChaosClock chaosClock) + : IMessageHandler +{ + public Task HandleAsync(PremiumOrder message, IConsumeContext context, CancellationToken cancellationToken = default) + { + if (context.Headers.TryGetValue(StressHeaders.OriginBus, out var rawOrigin) + && HeaderDecoder.Decode(rawOrigin) is { } originBus + && string.Equals(originBus, busTag, StringComparison.Ordinal)) + { + // Echo back to the publishing bus — the driver only accounts for the + // cross-tenant delivery, so suppress the local-bus copy entirely. + return Task.CompletedTask; + } + + if (context.Headers.TryGetValue(StressHeaders.FlowId, out var raw) + && HeaderDecoder.Decode(raw) is { } flowIdStr + && Guid.TryParseExact(flowIdStr, "N", out var flowId)) + { + accounting.RecordHandled(flowId); + signals.Signal(flowId, busTag, context); + LedgerHandlerHelpers.RecordLedgerConsume(message, context, "content-based-routing", busTag, flowId, ledger, chaosClock); + } + return Task.CompletedTask; + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/PubSubHandler.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/PubSubHandler.cs new file mode 100644 index 000000000..dc93281cb --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/PubSubHandler.cs @@ -0,0 +1,54 @@ +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Chaos; +using ServiceConnect.Examples.StressHarness.Contracts.Messages; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Patterns.Handlers; + +/// +/// Receives on either bus, records the handler arrival into +/// , and signals the awaiting driver through +/// . +/// +/// +/// +/// Pub/sub uses a type-derived fanout exchange shared across both buses. Each bus binds +/// its own queue to that exchange, so a publish from alpha is delivered to BOTH the +/// alpha queue (echo to the sender) and the beta queue (the cross-tenant fan-out the +/// driver awaits). The handler filters out the echo by comparing the OriginBus +/// header to its own busTag — only the cross-bus delivery records and signals, +/// matching the driver's expectedHandlerInvocations: 1 accounting. +/// +/// +/// Header values arrive as because the transport may deliver them +/// as either (in-process / serialiser fast-path) or +/// [] (RabbitMQ wire format). +/// normalises both shapes; a raw is string pattern check would miss the wire +/// form and silently skip every flow on the live broker. +/// +/// +public sealed class PubSubHandler(string busTag, FlowAccounting accounting, PerHandlerSignal signals, MessageLedger ledger, IChaosClock chaosClock) + : IMessageHandler +{ + public Task HandleAsync(PubSubEvent message, IConsumeContext context, CancellationToken cancellationToken = default) + { + if (context.Headers.TryGetValue(StressHeaders.OriginBus, out var rawOrigin) + && HeaderDecoder.Decode(rawOrigin) is { } originBus + && string.Equals(originBus, busTag, StringComparison.Ordinal)) + { + // Echo back to the publishing bus — the driver only accounts for the + // cross-tenant delivery, so suppress the local-bus copy entirely. + return Task.CompletedTask; + } + + if (context.Headers.TryGetValue(StressHeaders.FlowId, out var raw) + && HeaderDecoder.Decode(raw) is { } flowIdStr + && Guid.TryParseExact(flowIdStr, "N", out var flowId)) + { + accounting.RecordHandled(flowId); + signals.Signal(flowId, busTag, context); + LedgerHandlerHelpers.RecordLedgerConsume(message, context, "pubsub", busTag, flowId, ledger, chaosClock); + } + return Task.CompletedTask; + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/QuoteRequestHandler.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/QuoteRequestHandler.cs new file mode 100644 index 000000000..3a7773af7 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/QuoteRequestHandler.cs @@ -0,0 +1,50 @@ +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Chaos; +using ServiceConnect.Examples.StressHarness.Contracts.Messages; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Patterns.Handlers; + +/// +/// Receives on either bus, records the handler arrival into +/// , signals the rendezvous registry, then replies with a +/// through . +/// +/// +/// +/// The driver awaits the reply directly through +/// rather than via +/// , but the handler still records and signals for +/// accounting consistency with the other pattern drivers — a missing reply at the +/// driver and a missing signal at the registry have different operator-visible +/// symptoms (timeout vs reconciliation mismatch) and the harness wants both. +/// +/// +/// Header values arrive as because the transport may deliver them +/// as either (in-process / serialiser fast-path) or +/// [] (RabbitMQ wire format). +/// normalises both shapes; a raw is string pattern check would miss the wire +/// form and silently skip every flow on the live broker. +/// +/// +public sealed class QuoteRequestHandler(string busTag, FlowAccounting accounting, PerHandlerSignal signals, MessageLedger ledger, IChaosClock chaosClock) + : IMessageHandler +{ + public async Task HandleAsync(QuoteRequest message, IConsumeContext context, CancellationToken cancellationToken = default) + { + if (context.Headers.TryGetValue(StressHeaders.FlowId, out var raw) + && HeaderDecoder.Decode(raw) is { } flowIdStr + && Guid.TryParseExact(flowIdStr, "N", out var flowId)) + { + accounting.RecordHandled(flowId); + signals.Signal(flowId, busTag, context); + LedgerHandlerHelpers.RecordLedgerConsume(message, context, "request-reply", busTag, flowId, ledger, chaosClock); + } + + // Reply destination is taken from the incoming envelope's reply-to header by + // the request-reply manager; no endpoint or routing key is set here. + await context.ReplyAsync( + new QuoteResponse(message.CorrelationId) { Price = 42.50m }, + cancellationToken: cancellationToken).ConfigureAwait(false); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/SagaHandler.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/SagaHandler.cs new file mode 100644 index 000000000..85e6109e4 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/SagaHandler.cs @@ -0,0 +1,110 @@ +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Chaos; +using ServiceConnect.Examples.StressHarness.Contracts.Messages; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Patterns.Handlers; + +/// +/// Three-stage process-manager handler exercised by ProcessManagerDriver. The +/// same handler class implements for +/// each of the three saga messages so a single registered type spans the full +/// progression; the framework correlates each inbound message to the same +/// instance via the default +/// mapping on +/// CorrelationId. +/// +/// +/// +/// Each HandleAsync overload advances to its +/// next expected value, captures the post-mutation stage into the shared +/// for the driver's assertion, and signals the +/// rendezvous registry on the per-message sub-flow id stamped under +/// . The saga's own +/// is distinct from those sub-flow ids — the framework uses it for state lookup, +/// the driver uses sub-flow ids for one-shot rendezvous because +/// PerHandlerSignal.AwaitAsync completes a single time per key. +/// +/// +/// Idempotency: each stage gates on the current Stage value before mutating +/// so a redelivery of the same message — for example after a broker requeue or an +/// optimistic-concurrency retry — does not advance the saga twice. The +/// observation log still receives a record on the replay (the observation is the +/// post-condition view at handler-exit time), which is fine: the driver asserts +/// the sequence contains [1, 2, 3] as a sub-sequence rather than insisting +/// on exact equality. +/// +/// +public sealed class SagaHandler( + string busTag, + FlowAccounting accounting, + PerHandlerSignal signals, + SagaObservations observations, + MessageLedger ledger, + IChaosClock chaosClock) + : IProcessHandler, + IProcessHandler, + IProcessHandler +{ + public Task HandleAsync(SagaStarted message, SagaData data, IConsumeContext context, CancellationToken cancellationToken = default) + { + if (data.Stage < 1) + { + data.Stage = 1; + } + observations.Record(message.CorrelationId, data.Stage); + var subFlowId = SignalStageArrival(context); + if (subFlowId is { } id) + { + LedgerHandlerHelpers.RecordLedgerConsume(message, context, "process-manager", busTag, id, ledger, chaosClock); + } + return Task.CompletedTask; + } + + public Task HandleAsync(SagaIntermediate message, SagaData data, IConsumeContext context, CancellationToken cancellationToken = default) + { + if (data.Stage < 2) + { + data.Stage = 2; + } + observations.Record(message.CorrelationId, data.Stage); + var subFlowId = SignalStageArrival(context); + if (subFlowId is { } id) + { + LedgerHandlerHelpers.RecordLedgerConsume(message, context, "process-manager", busTag, id, ledger, chaosClock); + } + return Task.CompletedTask; + } + + public Task HandleAsync(SagaCompleted message, SagaData data, IConsumeContext context, CancellationToken cancellationToken = default) + { + if (data.Stage < 3) + { + data.Stage = 3; + } + observations.Record(message.CorrelationId, data.Stage); + var subFlowId = SignalStageArrival(context); + if (subFlowId is { } id) + { + LedgerHandlerHelpers.RecordLedgerConsume(message, context, "process-manager", busTag, id, ledger, chaosClock); + } + return Task.CompletedTask; + } + + private Guid? SignalStageArrival(IConsumeContext context) + { + // Sub-flow id (one per stage message) lives on the StressHeaders.FlowId header; + // the saga's own CorrelationId is on the message body and is what the framework + // uses for state lookup. Keeping the two distinct lets the driver await each + // stage independently with the one-shot PerHandlerSignal rendezvous. + if (context.Headers.TryGetValue(StressHeaders.FlowId, out var raw) + && HeaderDecoder.Decode(raw) is { } flowIdStr + && Guid.TryParseExact(flowIdStr, "N", out var subFlowId)) + { + accounting.RecordHandled(subFlowId); + signals.Signal(subFlowId, busTag, context); + return subFlowId; + } + return null; + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/SagaObservations.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/SagaObservations.cs new file mode 100644 index 000000000..c788f5307 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/SagaObservations.cs @@ -0,0 +1,58 @@ +using System.Collections.Concurrent; +using ServiceConnect.Examples.StressHarness.Assertions; + +namespace ServiceConnect.Examples.StressHarness.Patterns.Handlers; + +/// +/// Process-wide observation log for the process-manager driver. Each +/// stage records the post-mutation Stage value +/// against the saga's correlation id; the driver verifies the recorded sequence +/// is [1, 2, 3] in order, demonstrating the framework correlated the +/// inbound messages to the same persisted state instance and surfaced the +/// monotonic mutation across handler invocations. +/// +/// +/// A single instance is shared across both buses. The per-correlation-id list is +/// mutated under a per-list lock taken via +/// +/// + lock(list). Read-back via takes the same +/// lock so the assertion cannot observe a partial append. +/// +public sealed class SagaObservations : IFlowKeyedSingleton +{ + /// Per-saga ordered list of post-mutation stage values. + public ConcurrentDictionary> Stages { get; } = new(); + + /// + /// Drops the per-correlation row for every id in + /// . Ids never observed are ignored. + /// + public void TryRemoveCompleted(IEnumerable completedFlowIds) + { + foreach (var id in completedFlowIds) + { + Stages.TryRemove(id, out _); + } + } + + public void Record(Guid correlationId, int stage) + { + var list = Stages.GetOrAdd(correlationId, _ => []); + lock (list) + { + list.Add(stage); + } + } + + public IReadOnlyList Snapshot(Guid correlationId) + { + if (!Stages.TryGetValue(correlationId, out var list)) + { + return []; + } + lock (list) + { + return [.. list]; + } + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/SearchRequestHandler.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/SearchRequestHandler.cs new file mode 100644 index 000000000..7bf84a267 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/SearchRequestHandler.cs @@ -0,0 +1,63 @@ +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Chaos; +using ServiceConnect.Examples.StressHarness.Contracts.Messages; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Patterns.Handlers; + +/// +/// Receives on either bus, records the handler arrival +/// into , signals the rendezvous registry, then replies +/// with a tagged with the bus identity through +/// . +/// +/// +/// +/// dispatches the +/// request to every queue bound to the type-fanout +/// exchange. With one registration per bus, a publish from alpha fans to both +/// alpha's and beta's queues; each handler replies once and the requester's +/// callback collects two replies — the count matched against +/// . +/// +/// +/// is set to the handler's bus tag so the +/// driver can assert both alpha and beta produced a reply (the fanout reached both +/// subscribers), distinct from a stuck pattern where one bus replies twice. +/// +/// +/// Header values arrive as because the transport may deliver +/// them as either (in-process / serialiser fast-path) or +/// [] (RabbitMQ wire format). +/// normalises both shapes; a raw is string pattern check would miss the wire +/// form and silently skip every flow on the live broker. +/// +/// +public sealed class SearchRequestHandler(string busTag, FlowAccounting accounting, PerHandlerSignal signals, MessageLedger ledger, IChaosClock chaosClock) + : IMessageHandler +{ + public async Task HandleAsync(SearchRequest message, IConsumeContext context, CancellationToken cancellationToken = default) + { + if (context.Headers.TryGetValue(StressHeaders.FlowId, out var raw) + && HeaderDecoder.Decode(raw) is { } flowIdStr + && Guid.TryParseExact(flowIdStr, "N", out var flowId)) + { + accounting.RecordHandled(flowId); + signals.Signal(flowId, busTag, context); + LedgerHandlerHelpers.RecordLedgerConsume(message, context, "scatter-gather", busTag, flowId, ledger, chaosClock); + } + + // Reply destination is taken from the incoming envelope's reply-to header + // by the request-reply manager; no endpoint or routing key is set here. + // CatalogName carries the responding bus tag so the driver can prove the + // fanout reached both subscribers by inspecting the distinct values in the + // collected reply set. + await context.ReplyAsync( + new SearchResponse(message.CorrelationId) + { + CatalogName = busTag, + ResultId = message.CorrelationId.ToString("N"), + }, + cancellationToken: cancellationToken).ConfigureAwait(false); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/SlipOrderHandler.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/SlipOrderHandler.cs new file mode 100644 index 000000000..e3202b476 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/SlipOrderHandler.cs @@ -0,0 +1,54 @@ +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Chaos; +using ServiceConnect.Examples.StressHarness.Contracts.Messages; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Patterns.Handlers; + +/// +/// Receives on either bus, records the handler arrival into +/// , appends the responding bus tag to the per-flow +/// , and returns. The framework's slip-forwarder runs after +/// the handler completes and dispatches the message to the next destination in the +/// envelope's RoutingSlip header — the handler itself never invokes +/// . +/// +/// +/// +/// Two hops cross both buses in opposite orders depending on the slip origin: +/// alpha-issued slip visits alpha-then-beta, beta-issued slip visits beta-then-alpha. +/// The trail's append order reflects the actual hop order, so the driver's +/// assertion confirms the slip honoured the destination list rather than the +/// framework reordering hops or skipping a destination. +/// +/// +/// Flow correlation is read from rather than +/// from StressHeaders.FlowId because does not +/// accept a SendOptions overload — there is no caller-visible path to attach +/// custom headers to a routed message. The driver constructs the +/// with the flow id on the message's correlation id, matching the convention the +/// aggregator driver uses for the same reason (its ExecuteAsync has no +/// access to per-message headers). +/// +/// +public sealed class SlipOrderHandler(string busTag, FlowAccounting accounting, PerHandlerSignal signals, SlipTrail trail, MessageLedger ledger, IChaosClock chaosClock) + : IMessageHandler +{ + public Task HandleAsync(SlipOrder message, IConsumeContext context, CancellationToken cancellationToken = default) + { + var flowId = message.CorrelationId; + accounting.RecordHandled(flowId); + // Signal the rendezvous for accounting parity; the driver waits on the + // trail length rather than this signal because PerHandlerSignal is one-shot + // per flow id and the slip fires the handler twice (once per hop). The + // first hop wins the await; the second hop's signal is a no-op because the + // TCS is already completed. + signals.Signal(flowId, busTag, context); + trail.Record(flowId, busTag); + // RouteAsync does not forward caller-controlled headers, so X-Stress-MessageId + // is absent from inbound context. The helper falls back to message.CorrelationId + // as the ledger key; the publish side records under the same key for this path. + LedgerHandlerHelpers.RecordLedgerConsume(message, context, "routing-slip", busTag, flowId, ledger, chaosClock); + return Task.CompletedTask; + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/SlipTrail.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/SlipTrail.cs new file mode 100644 index 000000000..01359c10d --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/SlipTrail.cs @@ -0,0 +1,83 @@ +using System.Collections.Concurrent; +using ServiceConnect.Examples.StressHarness.Assertions; + +namespace ServiceConnect.Examples.StressHarness.Patterns.Handlers; + +/// +/// Process-wide observation log for the routing-slip driver. Each handler invocation +/// appends the bus tag it ran on to the per-flow trail; the driver polls the trail +/// length to detect when both hops have completed and then inspects the order to +/// assert the slip visited the queues in the destinations-list order. +/// +/// +/// +/// The trail is mutated under a per-flow lock implicit in the +/// +/// contract — AddOrUpdate's factory runs while the key's bucket is locked, +/// so concurrent appends from two near-simultaneous hops on different buses see a +/// serialised order. The driver reads the trail via which +/// allocates a fresh array under the same lock so the assertion path observes a +/// consistent view. +/// +/// +/// Per-flow entries are reclaimed by the dispatcher via +/// at the end of each flow's lifecycle so a +/// long-running soak does not accumulate one row per delivered slip; ids that +/// were never observed (the dispatcher broadcasts the completion set to every +/// flow-keyed singleton) are silently ignored. +/// +/// +public sealed class SlipTrail : IFlowKeyedSingleton +{ + private readonly ConcurrentDictionary> _trails = new(); + + /// + /// Appends to the trail for . + /// Allocates the trail on first call for the flow id; subsequent calls append + /// under the same per-key lock the dictionary enforces. + /// + public void Record(Guid flowId, string busTag) + { + _trails.AddOrUpdate( + flowId, + _ => [busTag], + (_, existing) => + { + lock (existing) + { + existing.Add(busTag); + } + return existing; + }); + } + + /// + /// Returns a snapshot of the current trail for , or + /// an empty list if no handler has fired yet. The snapshot is allocated under + /// the per-key lock so a concurrent cannot interleave with + /// the read. + /// + public IReadOnlyList Snapshot(Guid flowId) + { + if (!_trails.TryGetValue(flowId, out var trail)) + { + return []; + } + lock (trail) + { + return [.. trail]; + } + } + + /// + /// Drops the per-flow trail row for every id in + /// . Ids never observed are ignored. + /// + public void TryRemoveCompleted(IEnumerable completedFlowIds) + { + foreach (var id in completedFlowIds) + { + _trails.TryRemove(id, out _); + } + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/StandardOrderHandler.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/StandardOrderHandler.cs new file mode 100644 index 000000000..4add31ad8 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/StandardOrderHandler.cs @@ -0,0 +1,48 @@ +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Chaos; +using ServiceConnect.Examples.StressHarness.Contracts.Messages; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Patterns.Handlers; + +/// +/// Receives on either bus, records the handler arrival into +/// , and signals the awaiting driver. Distinct from +/// so the driver can verify that the type-derived +/// fanout exchange routes each variant to exactly its own handler. +/// +/// +/// +/// Pub/sub uses a type-derived fanout exchange shared across both buses. Each bus binds +/// its own queue to that exchange, so a publish from alpha is delivered to BOTH the +/// alpha queue (echo to the sender) and the beta queue (the cross-tenant fan-out the +/// driver awaits). The handler filters out the echo by comparing the OriginBus +/// header to its own busTag, matching the driver's +/// expectedHandlerInvocations: 1 bookkeeping. +/// +/// +public sealed class StandardOrderHandler(string busTag, FlowAccounting accounting, PerHandlerSignal signals, MessageLedger ledger, IChaosClock chaosClock) + : IMessageHandler +{ + public Task HandleAsync(StandardOrder message, IConsumeContext context, CancellationToken cancellationToken = default) + { + if (context.Headers.TryGetValue(StressHeaders.OriginBus, out var rawOrigin) + && HeaderDecoder.Decode(rawOrigin) is { } originBus + && string.Equals(originBus, busTag, StringComparison.Ordinal)) + { + // Echo back to the publishing bus — the driver only accounts for the + // cross-tenant delivery, so suppress the local-bus copy entirely. + return Task.CompletedTask; + } + + if (context.Headers.TryGetValue(StressHeaders.FlowId, out var raw) + && HeaderDecoder.Decode(raw) is { } flowIdStr + && Guid.TryParseExact(flowIdStr, "N", out var flowId)) + { + accounting.RecordHandled(flowId); + signals.Signal(flowId, busTag, context); + LedgerHandlerHelpers.RecordLedgerConsume(message, context, "content-based-routing", busTag, flowId, ledger, chaosClock); + } + return Task.CompletedTask; + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/StreamObservations.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/StreamObservations.cs new file mode 100644 index 000000000..63d3cdd70 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/StreamObservations.cs @@ -0,0 +1,72 @@ +using System.Collections.Concurrent; +using ServiceConnect.Examples.StressHarness.Assertions; + +namespace ServiceConnect.Examples.StressHarness.Patterns.Handlers; + +/// +/// Snapshot of one stream reassembled by the receiver. +/// matches the driver's per-flow correlator (carried on the message body's +/// correlation id because the stream API has no caller-header pathway); +/// identifies the bus the handler ran on; +/// is the count of reassembled bytes; is the SHA-256 hex +/// digest of those bytes, which the driver compares against the sent-side digest. +/// +public sealed record StreamObservation(Guid FlowId, string BusTag, int Bytes, string Sha256); + +/// +/// Process-wide observation log for the streaming driver. Each +/// +/// invocation records one observation keyed by flow id; the driver awaits the +/// per-flow rendezvous and asserts the recorded SHA matches the sent-side digest. +/// +/// +/// The TaskCompletionSource is one-shot per flow id — a stream is reassembled +/// once and dispatched once, so a second completion (e.g. a broker redelivery +/// after dispatch) would race the first observation's recorded bytes. The +/// framework's stream eviction sweep and the dispatch-in-flight CAS together +/// make the second-dispatch case rare; if it ever fires, the assertion runs +/// against the first observation, which is the right invariant for the harness's +/// integrity check. +/// +public sealed class StreamObservations : IFlowKeyedSingleton +{ + private readonly ConcurrentDictionary> _waiters = new(); + + /// + /// Returns a task that completes when the first stream observation for + /// is recorded. Safe to call before or after the + /// framework dispatches the reassembled stream; first caller wins the TCS + /// allocation. + /// + public Task AwaitAsync(Guid flowId, CancellationToken cancellationToken) + { + var tcs = _waiters.GetOrAdd(flowId, _ => new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously)); + cancellationToken.Register(() => tcs.TrySetCanceled(cancellationToken)); + return tcs.Task; + } + + /// + /// Records a reassembled stream and signals any pending awaiter on that flow + /// id. Called from + /// after the framework + /// completes the stream reassembly and dispatch. + /// + public void Record(StreamObservation observation) + { + var tcs = _waiters.GetOrAdd(observation.FlowId, _ => new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously)); + tcs.TrySetResult(observation); + } + + /// + /// Drops the per-flow awaiter entry for every id in + /// . Re-awaiting a reclaimed flow id + /// yields a fresh pending TCS so a later redelivery completes cleanly. + /// + public void TryRemoveCompleted(IEnumerable completedFlowIds) + { + foreach (var id in completedFlowIds) + { + _waiters.TryRemove(id, out _); + } + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/TracedEventHandler.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/TracedEventHandler.cs new file mode 100644 index 000000000..0cb6c6ce8 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/TracedEventHandler.cs @@ -0,0 +1,57 @@ +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Chaos; +using ServiceConnect.Examples.StressHarness.Contracts.Messages; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Patterns.Handlers; + +/// +/// Receives on either bus, records the handler arrival +/// into , and signals the awaiting driver. The +/// handler's only job is to fire the rendezvous — the driver's assertion lives +/// in the global TelemetryObservations bag, which the framework's +/// telemetry middleware populates around dispatch without any handler co-operation. +/// +/// +/// +/// Telemetry uses a type-derived fanout exchange shared across both buses (same +/// shape as the pub/sub driver). Each bus binds its own queue to that exchange, +/// so a publish from alpha is delivered to BOTH the alpha queue (echo to the +/// sender) and the beta queue (the cross-tenant fan-out the driver awaits). The +/// handler filters out the echo by comparing the OriginBus header to its +/// own busTag — only the cross-bus delivery records and signals, matching +/// the driver's expectedHandlerInvocations: 1 accounting. +/// +/// +/// Header values arrive as because the transport may deliver +/// them as either (in-process / serialiser fast-path) or +/// [] (RabbitMQ wire format). +/// normalises both shapes; a raw is string check would miss the wire form +/// and silently skip every flow on the live broker. +/// +/// +public sealed class TracedEventHandler(string busTag, FlowAccounting accounting, PerHandlerSignal signals, MessageLedger ledger, IChaosClock chaosClock) + : IMessageHandler +{ + public Task HandleAsync(TracedEvent message, IConsumeContext context, CancellationToken cancellationToken = default) + { + if (context.Headers.TryGetValue(StressHeaders.OriginBus, out var rawOrigin) + && HeaderDecoder.Decode(rawOrigin) is { } originBus + && string.Equals(originBus, busTag, StringComparison.Ordinal)) + { + // Echo back to the publishing bus — the driver only accounts for the + // cross-tenant delivery, so suppress the local-bus copy entirely. + return Task.CompletedTask; + } + + if (context.Headers.TryGetValue(StressHeaders.FlowId, out var raw) + && HeaderDecoder.Decode(raw) is { } flowIdStr + && Guid.TryParseExact(flowIdStr, "N", out var flowId)) + { + accounting.RecordHandled(flowId); + signals.Signal(flowId, busTag, context); + LedgerHandlerHelpers.RecordLedgerConsume(message, context, "telemetry", busTag, flowId, ledger, chaosClock); + } + return Task.CompletedTask; + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/WorkItemCounters.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/WorkItemCounters.cs new file mode 100644 index 000000000..b1c6dd0a0 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/WorkItemCounters.cs @@ -0,0 +1,26 @@ +using System.Collections.Concurrent; + +namespace ServiceConnect.Examples.StressHarness.Patterns.Handlers; + +/// +/// Process-wide hit counter for the competing-consumers driver. Each +/// instance records into a key of the form +/// "{busTag}:{handlerTag}" so the driver can verify that more than one +/// distinct handler observed at least one message after the batch drains. +/// +/// +/// A single instance is shared across both buses (registered as a singleton in +/// Program.cs), mirroring the FlowAccounting and +/// sharing model. Concurrent updates are bounded +/// by the number of dispatch threads on both buses; the dictionary's lock-free +/// reads keep the driver's polling reconcile cheap. +/// +public sealed class WorkItemCounters +{ + /// + /// Per-handler hit counts keyed by "{busTag}:{handlerTag}". Composite key + /// keeps the alpha-side and beta-side counters in one shared dictionary while + /// remaining unambiguous when the driver inspects only the receiver-side bus tag. + /// + public ConcurrentDictionary Hits { get; } = new(StringComparer.Ordinal); +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/WorkItemHandler.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/WorkItemHandler.cs new file mode 100644 index 000000000..98374bf68 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Handlers/WorkItemHandler.cs @@ -0,0 +1,59 @@ +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Chaos; +using ServiceConnect.Examples.StressHarness.Contracts.Messages; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Patterns.Handlers; + +/// +/// Receives on either bus, records the handler arrival into +/// , signals the rendezvous registry, and bumps a per-handler +/// counter so the driver can verify that more than one distinct handler instance +/// observed at least one message in the batch. +/// +/// +/// +/// Two IMessageHandler<WorkItem> registrations exist per bus, distinguished +/// by their constructor-injected . The framework's dispatcher +/// resolves every matching service via GetServices, so each delivery fans out to +/// both handler instances. The driver's success criterion is "at least two distinct +/// handlers got at least one message" — which holds even when both fire for every +/// message — so the assertion remains meaningful without coupling to a competing-queue +/// topology that the harness's single-process bus pair cannot model directly. +/// +/// +/// Header values arrive as because the transport may deliver them +/// as either (in-process / serialiser fast-path) or +/// [] (RabbitMQ wire format). +/// normalises both shapes; a raw is string pattern check would miss the wire +/// form and silently skip every flow on the live broker. +/// +/// +public sealed class WorkItemHandler( + string handlerTag, + string busTag, + FlowAccounting accounting, + PerHandlerSignal signals, + WorkItemCounters counters, + MessageLedger ledger, + IChaosClock chaosClock) + : IMessageHandler +{ + public Task HandleAsync(WorkItem message, IConsumeContext context, CancellationToken cancellationToken = default) + { + if (context.Headers.TryGetValue(StressHeaders.FlowId, out var raw) + && HeaderDecoder.Decode(raw) is { } flowIdStr + && Guid.TryParseExact(flowIdStr, "N", out var flowId)) + { + accounting.RecordHandled(flowId); + signals.Signal(flowId, busTag, context); + counters.Hits.AddOrUpdate($"{busTag}:{handlerTag}", 1, (_, n) => n + 1); + // WorkItemHandler is registered twice per bus (h1 + h2 tags) so the framework + // dispatches every WorkItem to both instances; each instance records its own + // consume row. The analyzer's PerMessageRedeliveries counter will reflect this + // fan-out — not real broker redelivery — during competing-consumers runs. + LedgerHandlerHelpers.RecordLedgerConsume(message, context, "competing-consumers", busTag, flowId, ledger, chaosClock); + } + return Task.CompletedTask; + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/IPatternDriver.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/IPatternDriver.cs new file mode 100644 index 000000000..bc72f2125 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/IPatternDriver.cs @@ -0,0 +1,14 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Patterns; + +public interface IPatternDriver +{ + string Name { get; } + bool RequiresPersistence { get; } + Task RunFlowAsync( + IBus sender, + IBus receiver, + StressFlowContext context, + CancellationToken cancellationToken); +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Middleware/MiddlewareTrail.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Middleware/MiddlewareTrail.cs new file mode 100644 index 000000000..407e2400a --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Middleware/MiddlewareTrail.cs @@ -0,0 +1,80 @@ +using System.Collections.Concurrent; +using ServiceConnect.Examples.StressHarness.Assertions; + +namespace ServiceConnect.Examples.StressHarness.Patterns.Middleware; + +/// +/// Process-wide ordering trail for the custom-filter-and-middleware driver. Each +/// pipeline stage on the receiver — BeforeConsuming filter, MessageProcessing +/// middleware enter, the matching handler, middleware exit, +/// OnConsumedSuccessfully filter — appends a marker keyed by the message's flow +/// id; the driver asserts the trail observed on the receiver is +/// [before, mid-enter, handler, mid-exit, on-success]. +/// +/// +/// +/// A single instance is shared across both buses, mirroring the sharing model used +/// for FlowAccounting / PerHandlerSignal / FilterTrail. The +/// trail must be keyed by flow id (not bus tag) because the driver runs both +/// directions concurrently and the entire pipeline for a given direction lands on +/// the same receiver bus — keying by flow id keeps the two directions' entries +/// cleanly separated even when the dispatcher interleaves them. +/// +/// +/// Per-flow lists are mutated under a per-list lock taken via +/// +/// + lock(list). The list inside is therefore mutated +/// only inside that lock; the driver reads via which +/// returns a defensive copy under the same lock so the assertion cannot observe a +/// partial append. +/// +/// +public sealed class MiddlewareTrail : IFlowKeyedSingleton +{ + /// Per-flow ordered list of stage markers. + public ConcurrentDictionary> Trails { get; } = new(); + + /// + /// Drops the per-flow trail row for every id in + /// . Ids the trail never observed are + /// ignored. + /// + public void TryRemoveCompleted(IEnumerable completedFlowIds) + { + foreach (var id in completedFlowIds) + { + Trails.TryRemove(id, out _); + } + } + + /// + /// Appends to the trail for , + /// allocating the per-flow list on first use. Thread-safe. + /// + public void Record(Guid flowId, string marker) + { + var list = Trails.GetOrAdd(flowId, _ => []); + lock (list) + { + list.Add(marker); + } + } + + /// + /// Returns an immutable snapshot of the trail for , or an + /// empty list if the flow has no recorded markers. The snapshot is taken under the + /// same lock used by so the caller cannot observe + /// a partially-mutated list. + /// + public IReadOnlyList Snapshot(Guid flowId) + { + if (!Trails.TryGetValue(flowId, out var list)) + { + return []; + } + lock (list) + { + return [.. list]; + } + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Middleware/StressProcessingMiddleware.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Middleware/StressProcessingMiddleware.cs new file mode 100644 index 000000000..5be003862 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Middleware/StressProcessingMiddleware.cs @@ -0,0 +1,62 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Patterns.Middleware; + +/// +/// Message-processing middleware that brackets the handler dispatch with +/// mid-enter and mid-exit markers in the shared +/// . Combined with the BeforeConsuming filter, the +/// handler, and the OnConsumedSuccessfully filter, this completes the five-stage +/// pipeline ordering the driver asserts: +/// [before, mid-enter, handler, mid-exit, on-success]. +/// +/// +/// +/// The middleware reads the flow id from the inbound +/// dictionary rather than the envelope so it sees the same shape as the dispatcher +/// — header values arrive as because the transport may +/// deliver them as either (in-process / serialiser fast-path) +/// or [] (RabbitMQ wire format). +/// normalises both shapes; a raw is string check would miss the wire form. +/// +/// +/// The middleware re-throws any exception raised by so the +/// dispatcher can flip the consume result to Success=false, but always +/// records the mid-exit marker first via a finally block. The trail +/// therefore captures middleware entry and exit even on a failed handler — though +/// the driver's happy-path assertion only exercises the success branch. +/// +/// +public sealed class StressProcessingMiddleware(MiddlewareTrail trail) : IMessageProcessingMiddleware +{ + public async Task ProcessAsync( + ReadOnlyMemory messageBytes, + Type messageType, + object message, + IDictionary headers, + Envelope envelope, + MessageProcessingDelegate next, + CancellationToken cancellationToken) + { + Guid? flowId = null; + if (headers.TryGetValue(StressHeaders.FlowId, out var raw) + && HeaderDecoder.Decode(raw) is { } flowIdStr + && Guid.TryParseExact(flowIdStr, "N", out var parsed)) + { + flowId = parsed; + trail.Record(parsed, "mid-enter"); + } + + try + { + return await next(messageBytes, messageType, message, headers, envelope, cancellationToken).ConfigureAwait(false); + } + finally + { + if (flowId is { } id) + { + trail.Record(id, "mid-exit"); + } + } + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/PerHandlerSignal.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/PerHandlerSignal.cs new file mode 100644 index 000000000..8748d834a --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/PerHandlerSignal.cs @@ -0,0 +1,102 @@ +using System.Collections.Concurrent; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Patterns; + +/// +/// Per-flow rendezvous between a pattern driver (the awaiter) and the message handler +/// running on the receiving bus (the signaller). A single shared instance is registered +/// on both buses so a driver thread can await the in-process arrival of its handler +/// without polling the broker or counting messages. +/// +/// +/// +/// The handler may signal before the driver registers its waiter (broker dispatches +/// faster than the awaiting task is scheduled) — and vice versa. +/// resolves the race: whichever side gets there first allocates the ; +/// the second side reuses the same instance. +/// keeps the signalling handler thread off the driver's continuation, so a slow assertion +/// path on the driver side never holds the consumer pump. +/// +/// +/// Headers are snapshot eagerly inside rather than held as a live +/// reference. The framework pools consume contexts and +/// invalidates the rental token the moment the handler returns; with +/// the driver's +/// continuation routinely lands after the handler thread has unwound and the context has +/// been released, at which point any header access throws. Copying the dictionary here +/// once is a few microseconds and decouples the driver entirely from pool lifetime. +/// +/// +/// The _waiters entry for each flow id is reclaimed as soon as the TCS resolves +/// (signalled by the handler, cancelled by the supplied token, or faulted) via a +/// continuation that calls +/// . This bounds +/// dictionary residency to the in-flight set rather than the cumulative flow count, so a +/// long-running soak doesn't accumulate per-flow state in this hot rendezvous map. +/// +/// +public sealed class PerHandlerSignal +{ + private readonly ConcurrentDictionary> _waiters = new(); + + /// + /// Returns a task that completes when the handler for fires. + /// Safe to call before or after the handler runs — first caller wins the allocation. + /// + /// Per-flow correlator stamped on the outbound headers. + /// Cancels the wait independently of broker delivery. + public Task AwaitAsync(Guid flowId, CancellationToken cancellationToken) + { + var tcs = _waiters.GetOrAdd(flowId, _ => new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously)); + // Reclaim the dictionary slot once the TCS resolves (success, cancellation, or + // fault) so per-flow state doesn't accumulate over long runs. ExecuteSynchronously + // is safe because the cleanup is a single TryRemove and the TCS uses + // RunContinuationsAsynchronously, which already hops continuations off the + // signalling handler thread before this one runs. + _ = tcs.Task.ContinueWith( + static (completed, state) => + { + _ = completed; + var (waiters, id) = ((ConcurrentDictionary>, Guid))state!; + waiters.TryRemove(id, out _); + }, + (_waiters, flowId), + CancellationToken.None, + TaskContinuationOptions.ExecuteSynchronously, + TaskScheduler.Default); + // Register fires once; CTS disposal at flow scope drops the registration. The + // closure captures the same TCS the GetOrAdd produced so a late signal arrives + // at a cancelled TCS (TrySetResult returns false) without faulting the awaiter. + cancellationToken.Register(() => tcs.TrySetCanceled(cancellationToken)); + return tcs.Task; + } + + /// + /// Records that the handler for ran on the bus identified by + /// , completing any pending await with a snapshot of the + /// inbound headers the handler saw. The snapshot is taken eagerly here so the driver's + /// continuation can inspect headers after the framework has released the underlying + /// pooled . + /// + public void Signal(Guid flowId, string busTag, IConsumeContext context) + { + // Shallow copy of the header dictionary while the context is still active. The + // values are either string or byte[] — both reference-immutable — so passing the + // copy across the rendezvous is safe even after the context is released. + var snapshot = new Dictionary(context.Headers, StringComparer.Ordinal); + var tcs = _waiters.GetOrAdd(flowId, _ => new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously)); + // TrySetResult: a redelivered message (at-least-once delivery) would re-enter the + // handler and call Signal again; the second invocation is a no-op rather than an + // InvalidOperationException because the task is already completed. + tcs.TrySetResult(new HandlerInvocation(busTag, snapshot)); + } +} + +/// +/// The single observation a driver collects per flow: which bus the handler ran on +/// () and the header snapshot copied from the consume context at +/// signal time, so the driver can run cross-tenant header assertions independently of +/// the framework's per-message context pool lifetime. +/// +public sealed record HandlerInvocation(string BusTag, IReadOnlyDictionary Headers); diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/PointToPointDriver.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/PointToPointDriver.cs new file mode 100644 index 000000000..7aa1dc59f --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/PointToPointDriver.cs @@ -0,0 +1,83 @@ +using System.Diagnostics; +using System.Diagnostics.CodeAnalysis; +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Contracts.Messages; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; + +namespace ServiceConnect.Examples.StressHarness.Patterns; + +/// +/// Drives the basic point-to-point send-and-handle flow across the bus pair. One direction +/// per invocation; +/// schedules α→β and β→α concurrently against the same driver instance. +/// +/// +/// +/// Routing is endpoint-explicit rather than queue-mapping-based: the driver computes the +/// receiver's queue name from and stamps +/// it on . This bypasses any per-type queue-mapping +/// state the harness host would otherwise need to configure, and keeps each direction's +/// destination unambiguous when both buses share the same handler type. +/// +/// +/// The receiver bus parameter is required by the +/// contract but unused here — point-to-point traffic flows one way and the driver only +/// touches the sender. Other patterns (request-reply, saga-reply-from-handler) need the +/// receiver handle, so the interface keeps both. +/// +/// +public sealed class PointToPointDriver(FlowAccounting accounting, PerHandlerSignal signals) : IPatternDriver +{ + public string Name => "p2p"; + public bool RequiresPersistence => false; + + [SuppressMessage("Style", "IDE0060", Justification = "Threaded through to satisfy IPatternDriver contract; other patterns use the receiver handle.")] + public async Task RunFlowAsync(IBus sender, IBus receiver, StressFlowContext context, CancellationToken cancellationToken) + { + var sw = Stopwatch.StartNew(); + var failures = new List(); + + // Receiver-side queue name matches HarnessHost.BuildServices: alpha = stress-a.work, + // beta = stress-b.work. Default-exchange routing sends the message straight onto + // the named queue with mandatory:true, so a typo here surfaces as a PublishException + // rather than a silent broker drop. + var receiverEndpoint = context.ExpectedReceiver == BusIdentity.Alpha ? "stress-a.work" : "stress-b.work"; + var message = new P2pPing(context.FlowId) { Token = context.FlowId.ToString("N") }; + var sendOptions = new SendOptions + { + EndPoint = receiverEndpoint, + Headers = new Dictionary(StringComparer.Ordinal) + { + [StressHeaders.FlowId] = context.FlowId.ToString("N"), + [StressHeaders.OriginBus] = context.Origin.ToHeaderValue(), + [StressHeaders.Pattern] = Name, + }, + }; + + // Record the send before the await so the accounting layer cannot observe a + // handler signal whose corresponding send hasn't been booked yet (would surface + // as a spurious "handled without record of send" failure). + accounting.RecordSend(context.FlowId, expectedHandlerInvocations: 1); + await sender.SendAsync(message, sendOptions, cancellationToken).ConfigureAwait(false); + + try + { + var invocation = await signals.AwaitAsync(context.FlowId, cancellationToken).ConfigureAwait(false); + var crossCheck = CrossTenantAssertions.Check(invocation.Headers, context.ExpectedReceiver, invocation.BusTag); + if (!crossCheck.Ok) + { + failures.Add(crossCheck.Failure); + } + } + catch (OperationCanceledException) + { + failures.Add($"p2p {context.Origin.ToHeaderValue()}->{context.ExpectedReceiver.ToHeaderValue()}: handler did not fire within {context.FlowTimeout}"); + } + + sw.Stop(); + return failures.Count == 0 + ? FlowResult.Pass(sw.Elapsed, sent: 1, handled: 1) + : FlowResult.Fail(sw.Elapsed, sent: 1, handled: 0, [.. failures]); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/PolymorphicMessagesDriver.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/PolymorphicMessagesDriver.cs new file mode 100644 index 000000000..48bca8339 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/PolymorphicMessagesDriver.cs @@ -0,0 +1,115 @@ +using System.Diagnostics; +using System.Globalization; +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Contracts.Messages; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; + +namespace ServiceConnect.Examples.StressHarness.Patterns; + +/// +/// Drives a polymorphic-publish flow by publishing one +/// and one per direction under a shared flow id, then +/// asserting that a single registration +/// caught both deliveries via the dispatcher's base-type walk. Each concrete event +/// publishes through its own type-derived fanout exchange; the bus binds the receiver +/// queue to both exchanges via dedicated HandlerReference entries. +/// +/// +/// +/// The driver reuses the orchestrator-supplied +/// across both publishes so the two arrivals on the receiver record against the same +/// accounting bucket. expectedHandlerInvocations: 2 matches the expected pair +/// of cross-tenant deliveries; the publisher-bus echoes are suppressed by the handler's +/// OriginBus check, so they don't inflate the observed count. +/// +/// +/// Synchronisation is via polling rather than +/// , because the signal's task completion source is +/// one-shot — it fires on the first handler invocation and the second is silently +/// dropped. Polling waits until the flow id's observed count catches up with the +/// expected pair, then the cross-tenant assertion runs against the (first) signal +/// snapshot for receiver-bus verification. +/// +/// +public sealed class PolymorphicMessagesDriver(FlowAccounting accounting, PerHandlerSignal signals) : IPatternDriver +{ + public string Name => "polymorphic"; + public bool RequiresPersistence => false; + + public async Task RunFlowAsync(IBus sender, IBus receiver, StressFlowContext context, CancellationToken cancellationToken) + { + _ = receiver; + var sw = Stopwatch.StartNew(); + var failures = new List(); + + var publishOptions = new PublishOptions + { + Headers = new Dictionary(StringComparer.Ordinal) + { + [StressHeaders.FlowId] = context.FlowId.ToString("N"), + [StressHeaders.OriginBus] = context.Origin.ToHeaderValue(), + [StressHeaders.Pattern] = Name, + }, + }; + + // Two derived events under the same flow id ⇒ two expected handler invocations + // on the receiver bus. The handler suppresses the echo to the publishing bus, + // so this bookkeeping does not need to account for the local-bus copies. + accounting.RecordSend(context.FlowId, expectedHandlerInvocations: 2); + + var placedMessage = new OrderPlacedEvent(context.FlowId) { OrderId = context.FlowId.ToString("N") }; + var shippedMessage = new OrderShippedEvent(context.FlowId) { ShippingId = context.FlowId.ToString("N") }; + + await Task.WhenAll( + sender.PublishAsync(placedMessage, publishOptions, cancellationToken), + sender.PublishAsync(shippedMessage, publishOptions, cancellationToken)).ConfigureAwait(false); + + // Take the first signal as the cross-tenant snapshot in parallel with the drain + // poll. AwaitAsync's TaskCompletionSource is one-shot — the second handler + // invocation under the same flow id is a no-op TrySetResult — so the snapshot + // we capture is the first arrival's headers / busTag, which is sufficient for + // the receiver-side assertion. + var signalTask = signals.AwaitAsync(context.FlowId, cancellationToken); + + var drainPollInterval = TimeSpan.FromMilliseconds(25); + var drained = false; + while (!cancellationToken.IsCancellationRequested) + { + var summary = accounting.Reconcile(); + if (!summary.MissingFlows.Contains(context.FlowId)) + { + drained = true; + break; + } + await Task.Delay(drainPollInterval, cancellationToken).ConfigureAwait(false); + } + + if (!drained) + { + failures.Add(string.Create(CultureInfo.InvariantCulture, + $"polymorphic {context.Origin.ToHeaderValue()}->{context.ExpectedReceiver.ToHeaderValue()}: both handlers did not fire within {context.FlowTimeout}")); + } + else + { + try + { + var invocation = await signalTask.ConfigureAwait(false); + var crossCheck = CrossTenantAssertions.Check(invocation.Headers, context.ExpectedReceiver, invocation.BusTag); + if (!crossCheck.Ok) + { + failures.Add(crossCheck.Failure); + } + } + catch (OperationCanceledException) + { + failures.Add($"polymorphic {context.Origin.ToHeaderValue()}->{context.ExpectedReceiver.ToHeaderValue()}: signal task cancelled before arrival"); + } + } + + sw.Stop(); + return failures.Count == 0 + ? FlowResult.Pass(sw.Elapsed, sent: 2, handled: 2) + : FlowResult.Fail(sw.Elapsed, sent: 2, handled: 0, [.. failures]); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/ProcessManagerDriver.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/ProcessManagerDriver.cs new file mode 100644 index 000000000..0fcecadf5 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/ProcessManagerDriver.cs @@ -0,0 +1,144 @@ +using System.Diagnostics; +using System.Diagnostics.CodeAnalysis; +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Contracts.Messages; +using ServiceConnect.Examples.StressHarness.Patterns.Handlers; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; + +namespace ServiceConnect.Examples.StressHarness.Patterns; + +/// +/// Drives a three-message saga (Started → Intermediate → Completed) on the +/// receiver bus, asserting the framework correlates each message to the same +/// persisted instance under one +/// and surfaces the post-mutation stage on +/// every invocation. The assertion is that the receiver's observation log +/// contains [1, 2, 3] as an ordered subsequence — exact equality would +/// over-constrain the harness because publisher retry or broker redelivery +/// (both at-least-once-compatible) can re-run a handler. The saga's data layer +/// guards against double-advance via the data.Stage < N check, but the +/// observation list captures every handler invocation regardless, so a duplicate +/// arrives as a repeated entry (e.g. [1, 2, 2, 3]). +/// +/// +/// +/// Routing is endpoint-explicit, matching : +/// the receiver's queue name is stamped on +/// so the driver does not depend on per-type queue mapping state. Each message +/// in the saga carries a distinct sub-flow id under +/// for the per-handler rendezvous, while +/// sharing the saga's own for framework +/// state lookup — the two ids serve different purposes and must stay separate +/// because PerHandlerSignal.AwaitAsync is one-shot. +/// +/// +/// Sends are sequential rather than fired in parallel: the saga is a state +/// machine and the framework relies on the dispatch order matching the +/// intended progression. A parallel publish would race the three messages onto +/// the receiver's queue in indeterminate order and the assertion would flap. +/// +/// +public sealed class ProcessManagerDriver(FlowAccounting accounting, PerHandlerSignal signals, SagaObservations observations) : IPatternDriver +{ + public string Name => "process-manager"; + public bool RequiresPersistence => true; + + [SuppressMessage("Style", "IDE0060", Justification = "Threaded through to satisfy IPatternDriver contract; saga traffic flows one way.")] + public async Task RunFlowAsync(IBus sender, IBus receiver, StressFlowContext context, CancellationToken cancellationToken) + { + var sw = Stopwatch.StartNew(); + var failures = new List(); + + var receiverEndpoint = context.ExpectedReceiver == BusIdentity.Alpha ? "stress-a.work" : "stress-b.work"; + var sagaId = context.FlowId; + + // Distinct sub-flow ids per stage so the one-shot rendezvous registry can + // gate each stage independently. The flow-id header is what handlers signal + // on; the saga's correlation id is what the framework keys state by. + var stage1Id = Guid.NewGuid(); + var stage2Id = Guid.NewGuid(); + var stage3Id = Guid.NewGuid(); + + accounting.RecordSend(stage1Id, expectedHandlerInvocations: 1); + accounting.RecordSend(stage2Id, expectedHandlerInvocations: 1); + accounting.RecordSend(stage3Id, expectedHandlerInvocations: 1); + + try + { + await SendStageAsync(sender, new SagaStarted(sagaId) { Token = sagaId.ToString("N") }, stage1Id, receiverEndpoint, context, cancellationToken).ConfigureAwait(false); + await signals.AwaitAsync(stage1Id, cancellationToken).ConfigureAwait(false); + + await SendStageAsync(sender, new SagaIntermediate(sagaId) { Token = sagaId.ToString("N") }, stage2Id, receiverEndpoint, context, cancellationToken).ConfigureAwait(false); + await signals.AwaitAsync(stage2Id, cancellationToken).ConfigureAwait(false); + + await SendStageAsync(sender, new SagaCompleted(sagaId) { Token = sagaId.ToString("N") }, stage3Id, receiverEndpoint, context, cancellationToken).ConfigureAwait(false); + var finalInvocation = await signals.AwaitAsync(stage3Id, cancellationToken).ConfigureAwait(false); + + var crossCheck = CrossTenantAssertions.Check(finalInvocation.Headers, context.ExpectedReceiver, finalInvocation.BusTag); + if (!crossCheck.Ok) + { + failures.Add(crossCheck.Failure); + } + + // Ordered-subsequence check: the saga must have passed through stages 1, 2, 3 + // in that order at least once. Publisher retry and broker redelivery (both + // at-least-once-compatible) can re-fire any handler, producing repeated entries + // such as [1, 2, 2, 3] or [1, 1, 2, 3, 3]. The progression is preserved as long + // as 1, 2, 3 appear in order somewhere in the list. + var observed = observations.Snapshot(sagaId); + if (!ContainsOrderedSubsequence(observed, [1, 2, 3])) + { + failures.Add($"process-manager {context.Origin.ToHeaderValue()}->{context.ExpectedReceiver.ToHeaderValue()}: expected stage progression [1, 2, 3] as ordered subsequence but observed [{string.Join(", ", observed)}]"); + } + } + catch (OperationCanceledException) + { + failures.Add($"process-manager {context.Origin.ToHeaderValue()}->{context.ExpectedReceiver.ToHeaderValue()}: saga did not complete within {context.FlowTimeout}"); + } + + sw.Stop(); + return failures.Count == 0 + ? FlowResult.Pass(sw.Elapsed, sent: 3, handled: 3) + : FlowResult.Fail(sw.Elapsed, sent: 3, handled: 0, [.. failures]); + } + + private static bool ContainsOrderedSubsequence(IReadOnlyList observed, ReadOnlySpan expected) + { + var idx = 0; + foreach (var stage in observed) + { + if (idx < expected.Length && stage == expected[idx]) + { + idx++; + if (idx == expected.Length) + { + return true; + } + } + } + return false; + } + + private static Task SendStageAsync( + IBus sender, + TMessage message, + Guid subFlowId, + string receiverEndpoint, + StressFlowContext context, + CancellationToken cancellationToken) + where TMessage : Message + { + var sendOptions = new SendOptions + { + EndPoint = receiverEndpoint, + Headers = new Dictionary(StringComparer.Ordinal) + { + [StressHeaders.FlowId] = subFlowId.ToString("N"), + [StressHeaders.OriginBus] = context.Origin.ToHeaderValue(), + [StressHeaders.Pattern] = "process-manager", + }, + }; + return sender.SendAsync(message, sendOptions, cancellationToken); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/PublishSubscribeDriver.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/PublishSubscribeDriver.cs new file mode 100644 index 000000000..88d3469bd --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/PublishSubscribeDriver.cs @@ -0,0 +1,78 @@ +using System.Diagnostics; +using System.Diagnostics.CodeAnalysis; +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Contracts.Messages; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; + +namespace ServiceConnect.Examples.StressHarness.Patterns; + +/// +/// Drives the publish-subscribe fan-out across the bus pair. One direction per +/// invocation; +/// schedules α→β and β→α concurrently against the same driver instance. +/// +/// +/// +/// Pub/sub uses a type-derived fanout exchange shared by both buses, so a publish from +/// one bus is delivered to both subscriber queues. suppresses +/// the echo to the publishing bus by matching OriginBus against its own bus tag, +/// leaving exactly one cross-tenant invocation per flow — which matches the driver's +/// expectedHandlerInvocations: 1 bookkeeping. +/// +/// +/// carries no EndPoint: routing is by exchange-binding +/// rather than queue name. The receiver bus parameter is required by the +/// contract but unused here — the driver only touches the +/// sender side. Other patterns (request-reply, saga-reply-from-handler) need the +/// receiver handle, so the interface keeps both. +/// +/// +public sealed class PublishSubscribeDriver(FlowAccounting accounting, PerHandlerSignal signals) : IPatternDriver +{ + public string Name => "pubsub"; + public bool RequiresPersistence => false; + + [SuppressMessage("Style", "IDE0060", Justification = "Threaded through to satisfy IPatternDriver contract; other patterns use the receiver handle.")] + public async Task RunFlowAsync(IBus sender, IBus receiver, StressFlowContext context, CancellationToken cancellationToken) + { + var sw = Stopwatch.StartNew(); + var failures = new List(); + + var message = new PubSubEvent(context.FlowId) { Topic = context.FlowId.ToString("N") }; + var publishOptions = new PublishOptions + { + Headers = new Dictionary(StringComparer.Ordinal) + { + [StressHeaders.FlowId] = context.FlowId.ToString("N"), + [StressHeaders.OriginBus] = context.Origin.ToHeaderValue(), + [StressHeaders.Pattern] = Name, + }, + }; + + // Record the send before the await so the accounting layer cannot observe a + // handler signal whose corresponding send hasn't been booked yet (would surface + // as a spurious "handled without record of send" failure). + accounting.RecordSend(context.FlowId, expectedHandlerInvocations: 1); + await sender.PublishAsync(message, publishOptions, cancellationToken).ConfigureAwait(false); + + try + { + var invocation = await signals.AwaitAsync(context.FlowId, cancellationToken).ConfigureAwait(false); + var crossCheck = CrossTenantAssertions.Check(invocation.Headers, context.ExpectedReceiver, invocation.BusTag); + if (!crossCheck.Ok) + { + failures.Add(crossCheck.Failure); + } + } + catch (OperationCanceledException) + { + failures.Add($"pubsub {context.Origin.ToHeaderValue()}->{context.ExpectedReceiver.ToHeaderValue()}: handler did not fire within {context.FlowTimeout}"); + } + + sw.Stop(); + return failures.Count == 0 + ? FlowResult.Pass(sw.Elapsed, sent: 1, handled: 1) + : FlowResult.Fail(sw.Elapsed, sent: 1, handled: 0, [.. failures]); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/RequestReplyDriver.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/RequestReplyDriver.cs new file mode 100644 index 000000000..2f75513df --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/RequestReplyDriver.cs @@ -0,0 +1,91 @@ +using System.Diagnostics; +using System.Diagnostics.CodeAnalysis; +using System.Globalization; +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Contracts.Messages; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; + +namespace ServiceConnect.Examples.StressHarness.Patterns; + +/// +/// Drives the request-reply round-trip across the bus pair. One direction per +/// invocation; +/// schedules α→β and β→α concurrently against the same driver instance. +/// +/// +/// +/// Routing is endpoint-explicit: the driver computes the receiver's queue name from +/// and stamps it on +/// . The reply destination is supplied by the +/// request-reply manager via the framework's reply-to header machinery; both buses +/// already invoke StartConsumingAsync in , +/// so the requester is already pumping its queue when +/// awaits the reply. +/// +/// +/// Synchronisation is taken from the awaited reply itself rather than +/// — the handler still records and signals for +/// reconciliation purposes, but the driver's success criterion is the matching +/// coming back through the request-reply +/// pipeline. The receiver bus parameter is required by the +/// contract and is unused here. +/// +/// +public sealed class RequestReplyDriver(FlowAccounting accounting, PerHandlerSignal signals) : IPatternDriver +{ + public string Name => "request-reply"; + public bool RequiresPersistence => false; + + [SuppressMessage("Style", "IDE0060", Justification = "Threaded through to satisfy IPatternDriver contract; signals are populated by the handler for reconciliation.")] + public async Task RunFlowAsync(IBus sender, IBus receiver, StressFlowContext context, CancellationToken cancellationToken) + { + _ = signals; + var sw = Stopwatch.StartNew(); + var failures = new List(); + + // Receiver-side queue name matches HarnessHost.BuildServices: alpha = stress-a.work, + // beta = stress-b.work. RequestOptions.EndPoint pins the destination so each + // direction's quote request reaches exactly the bus the driver expects, even + // though both buses have a QuoteRequestHandler registered. + var receiverEndpoint = context.ExpectedReceiver == BusIdentity.Alpha ? "stress-a.work" : "stress-b.work"; + var request = new QuoteRequest(context.FlowId) { ProductId = context.FlowId.ToString("N") }; + var options = new RequestOptions + { + EndPoint = receiverEndpoint, + Timeout = (int)context.FlowTimeout.TotalMilliseconds, + Headers = new Dictionary(StringComparer.Ordinal) + { + [StressHeaders.FlowId] = context.FlowId.ToString("N"), + [StressHeaders.OriginBus] = context.Origin.ToHeaderValue(), + [StressHeaders.Pattern] = Name, + }, + }; + + // Record the send before the await so the reconciliation pass cannot observe a + // handler signal whose corresponding send hasn't been booked yet (would surface + // as a spurious "handled without record of send" failure). + accounting.RecordSend(context.FlowId, expectedHandlerInvocations: 1); + + try + { + var response = await sender.SendRequestAsync( + request, options, cancellationToken).ConfigureAwait(false); + + if (response.CorrelationId != context.FlowId) + { + failures.Add(string.Create(CultureInfo.InvariantCulture, + $"request-reply {context.Origin.ToHeaderValue()}->{context.ExpectedReceiver.ToHeaderValue()}: reply correlation id {response.CorrelationId:N} does not match flow {context.FlowId:N}")); + } + } + catch (OperationCanceledException) + { + failures.Add($"request-reply {context.Origin.ToHeaderValue()}->{context.ExpectedReceiver.ToHeaderValue()}: reply did not arrive within {context.FlowTimeout}"); + } + + sw.Stop(); + return failures.Count == 0 + ? FlowResult.Pass(sw.Elapsed, sent: 1, handled: 1) + : FlowResult.Fail(sw.Elapsed, sent: 1, handled: 0, [.. failures]); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/RoutingSlipDriver.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/RoutingSlipDriver.cs new file mode 100644 index 000000000..f9858a32d --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/RoutingSlipDriver.cs @@ -0,0 +1,137 @@ +using System.Diagnostics; +using System.Diagnostics.CodeAnalysis; +using System.Globalization; +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Contracts.Messages; +using ServiceConnect.Examples.StressHarness.Patterns.Handlers; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Patterns; + +/// +/// Drives a two-hop routing slip across both buses. The sender bus's own queue is +/// the first destination so the slip stays on the issuing bus for hop 1, then the +/// framework's slip-forwarder hands it off to the other bus's queue for hop 2. +/// The assertion is that the per-flow trail recorded by the handler on each hop +/// reflects the destinations-list order: alpha-then-beta when alpha issued the +/// slip, beta-then-alpha when beta issued it. +/// +/// +/// +/// Routing is destination-list explicit: +/// sends to destinations[0] directly and encodes the remaining destinations +/// into the envelope's RoutingSlip header. After each handler completes, +/// HandlerProcessor.ForwardRoutingSlipAsync reads the inbound slip and +/// forwards the message along to the next destination — the handler never invokes +/// itself. +/// +/// +/// Synchronisation is via polling rather than the +/// per-handler rendezvous: is one-shot per flow id +/// and the slip fires the handler twice (once per hop). Polling the trail length +/// until both hops have recorded their bus tags lets the driver observe the +/// full progression without coupling to a multi-shot rendezvous primitive. +/// +/// +/// Per-bus self-loops are explicitly allowed on the producer side — the bus that +/// issues the slip places its own queue first in the destination list, which the +/// framework's Bus.RouteAsync accepts. The downstream self-loop check fires +/// only when the inbound slip names the local queue as the *next* hop on the +/// already-running bus, which never happens here because the second hop targets +/// the other bus. +/// +/// +public sealed class RoutingSlipDriver(FlowAccounting accounting, PerHandlerSignal signals, SlipTrail trail) : IPatternDriver +{ + public string Name => "routing-slip"; + public bool RequiresPersistence => false; + + [SuppressMessage("Style", "IDE0060", Justification = "Threaded through to satisfy IPatternDriver contract; the slip's forwarding stays on a single bus per hop until the slip-forwarder hands off.")] + public async Task RunFlowAsync(IBus sender, IBus receiver, StressFlowContext context, CancellationToken cancellationToken) + { + _ = signals; + _ = receiver; + var sw = Stopwatch.StartNew(); + var failures = new List(); + + // Destination order encodes the assertion: the slip's first hop runs on the + // sender's own queue, the second hop runs on the other bus's queue. The trail + // appended by the handler must reflect that order. + var senderQueue = context.Origin == BusIdentity.Alpha ? "stress-a.work" : "stress-b.work"; + var otherQueue = context.Origin == BusIdentity.Alpha ? "stress-b.work" : "stress-a.work"; + var senderTag = context.Origin.ToHeaderValue(); + var otherTag = context.Origin.Other().ToHeaderValue(); + + // Two expected handler invocations per flow: one per hop. Booked up-front so + // reconciliation cannot observe a handler signal whose corresponding send + // hasn't been booked yet (would surface as a spurious + // "handled without record of send" failure). + accounting.RecordSend(context.FlowId, expectedHandlerInvocations: 2); + + // Flow correlation is on Message.CorrelationId rather than a header because + // IBus.RouteAsync has no SendOptions overload — there is no caller-visible + // path to attach custom harness headers. The handler decodes the flow id + // from the body's correlation id, matching the convention the aggregator + // driver uses for the same reason (its ExecuteAsync has no access to + // per-message headers). + var message = new SlipOrder(context.FlowId) { OrderId = context.FlowId.ToString("N") }; + try + { + await sender.RouteAsync(message, [senderQueue, otherQueue], cancellationToken).ConfigureAwait(false); + + // Poll the trail until [senderTag, otherTag] appears as an ordered + // subsequence (both hops fired in order at least once). Publisher retry + // or broker redelivery can re-fire hop 1 before hop 2 completes, + // producing trails like [alpha, alpha, beta] or [alpha, alpha] mid-flight. + // Breaking on length-only would observe a transient [alpha, alpha] and + // assert against the duplicated hop instead of the legitimate progression. + var pollInterval = TimeSpan.FromMilliseconds(25); + IReadOnlyList observed = []; + while (!cancellationToken.IsCancellationRequested) + { + observed = trail.Snapshot(context.FlowId); + if (ContainsOrderedSubsequence(observed, senderTag, otherTag)) + { + break; + } + await Task.Delay(pollInterval, cancellationToken).ConfigureAwait(false); + } + + if (!ContainsOrderedSubsequence(observed, senderTag, otherTag)) + { + failures.Add(string.Create(CultureInfo.InvariantCulture, + $"routing-slip {senderTag}->{otherTag}: expected hop order [{senderTag}, {otherTag}] as ordered subsequence but observed [{string.Join(", ", observed)}]")); + } + } + catch (OperationCanceledException) + { + failures.Add(string.Create(CultureInfo.InvariantCulture, + $"routing-slip {senderTag}->{otherTag}: slip did not complete within {context.FlowTimeout}")); + } + + sw.Stop(); + return failures.Count == 0 + ? FlowResult.Pass(sw.Elapsed, sent: 1, handled: 2) + : FlowResult.Fail(sw.Elapsed, sent: 1, handled: 0, [.. failures]); + } + + private static bool ContainsOrderedSubsequence(IReadOnlyList observed, string first, string second) + { + var seenFirst = false; + foreach (var entry in observed) + { + if (!seenFirst) + { + if (string.Equals(entry, first, StringComparison.Ordinal)) + { + seenFirst = true; + } + } + else if (string.Equals(entry, second, StringComparison.Ordinal)) + { + return true; + } + } + return false; + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/ScatterGatherDriver.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/ScatterGatherDriver.cs new file mode 100644 index 000000000..f2fe0a357 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/ScatterGatherDriver.cs @@ -0,0 +1,150 @@ +using System.Diagnostics; +using System.Diagnostics.CodeAnalysis; +using System.Globalization; +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Contracts.Messages; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; + +namespace ServiceConnect.Examples.StressHarness.Patterns; + +/// +/// Drives a single +/// fanout per direction and asserts the framework collected exactly +/// ExpectedReplyCount = 2 replies — one from each bus subscribed to the +/// type-fanout exchange. The directional run is +/// symmetric: α publishes and both α and β reply; β publishes and both α and β +/// reply. The field is unused +/// here because the publish reaches both buses by construction. +/// +/// +/// +/// Synchronisation is taken from 's awaited +/// completion: the task returns once the reply count or the timeout is reached. +/// The per-reply callback is invoked synchronously by +/// the framework's reply pump on every accepted reply, so a lock around the +/// shared serialises mutations across the two bus pumps. +/// Per-handler signals are still booked in the receiver-side handler for +/// accounting parity with the other drivers, but the driver's success criterion +/// is the reply set. +/// +/// +/// Each publish books two expected handler invocations against the flow id: the +/// fanout reaches one handler per bus, and accounting reconciliation needs to +/// see two calls for the flow to be +/// considered fully drained. The handler instances each call +/// on the same flow id; the rendezvous +/// registry is one-shot per id so only the first signal wins the await, but the +/// accounting counter is monotonically incremented and observes both. +/// +/// +public sealed class ScatterGatherDriver(FlowAccounting accounting, PerHandlerSignal signals) : IPatternDriver +{ + public string Name => "scatter-gather"; + public bool RequiresPersistence => false; + + [SuppressMessage("Style", "IDE0060", Justification = "Threaded through to satisfy IPatternDriver contract; scatter-gather fanout reaches both buses regardless of which is named the sender.")] + public async Task RunFlowAsync(IBus sender, IBus receiver, StressFlowContext context, CancellationToken cancellationToken) + { + _ = signals; + _ = receiver; + var sw = Stopwatch.StartNew(); + var failures = new List(); + + // Two expected invocations per flow: one handler per subscribed bus fires + // on the fanout. Booked up-front so reconciliation cannot observe a handler + // signal whose corresponding send hasn't been booked yet. + accounting.RecordSend(context.FlowId, expectedHandlerInvocations: 2); + + var replies = new List(); + var repliesLock = new object(); + + var request = new SearchRequest(context.FlowId) { Query = context.FlowId.ToString("N") }; + // Scatter-gather is uniquely sensitive to chaos cycles: a flow needs BOTH replies, + // each carried by its own handler-dispatch chain that can stack one publisher + // retry budget (~30s ack-wait + ~10s inter-attempt delay) plus the consumer-side + // retry-queue delay. A single ill-aligned chaos cycle is absorbed by the publish + // retry; two consecutive cycles bracketing the same request-reply window can push + // a single reply past the per-flow timeout — at which point the framework's + // RequestReplyManager evicts the correlation entry and any late-arriving reply is + // silently dropped (no entry to match against). Doubling the request-reply timeout + // gives the second reply enough wall-clock to ride out a two-cycle alignment. + var options = new RequestOptions + { + ExpectedReplyCount = 2, + Timeout = (int)(context.FlowTimeout.TotalMilliseconds * 2), + Headers = new Dictionary(StringComparer.Ordinal) + { + [StressHeaders.FlowId] = context.FlowId.ToString("N"), + [StressHeaders.OriginBus] = context.Origin.ToHeaderValue(), + [StressHeaders.Pattern] = Name, + }, + }; + + try + { + await sender.PublishRequestAsync( + request, + reply => + { + // The framework's reply pump may invoke this callback from either bus + // delivery thread; serialise the list mutation so a near-simultaneous + // pair of replies cannot race on the underlying List backing array. + lock (repliesLock) + { + replies.Add(reply); + } + }, + options, + cancellationToken).ConfigureAwait(false); + + // Snapshot under the same lock so the assertion path observes the same + // memory model the writers used. PublishRequestAsync returned, so the + // reply pump should have finished invoking the callback, but the lock + // costs nothing and removes any doubt about the happens-before edge. + List snapshot; + lock (repliesLock) + { + snapshot = [.. replies]; + } + + if (snapshot.Count != 2) + { + failures.Add(string.Create(CultureInfo.InvariantCulture, + $"scatter-gather {context.Origin.ToHeaderValue()}: expected 2 replies but observed {snapshot.Count}")); + } + else + { + // Cross-tenant assertion: a meaningful fanout reaches BOTH subscribers, + // so the reply set must contain distinct catalog names that match the + // two bus tags. Two replies from the same bus tag would indicate a + // duplicate dispatch or a missed subscriber binding. + var catalogs = snapshot.Select(r => r.CatalogName).ToHashSet(StringComparer.Ordinal); + if (!catalogs.Contains("alpha") || !catalogs.Contains("beta")) + { + failures.Add(string.Create(CultureInfo.InvariantCulture, + $"scatter-gather {context.Origin.ToHeaderValue()}: expected replies from both 'alpha' and 'beta' but observed [{string.Join(", ", catalogs)}]")); + } + + foreach (var reply in snapshot) + { + if (reply.CorrelationId != context.FlowId) + { + failures.Add(string.Create(CultureInfo.InvariantCulture, + $"scatter-gather {context.Origin.ToHeaderValue()}: reply correlation id {reply.CorrelationId:N} does not match flow {context.FlowId:N}")); + } + } + } + } + catch (OperationCanceledException) + { + failures.Add(string.Create(CultureInfo.InvariantCulture, + $"scatter-gather {context.Origin.ToHeaderValue()}: fanout did not collect 2 replies within {context.FlowTimeout}")); + } + + sw.Stop(); + return failures.Count == 0 + ? FlowResult.Pass(sw.Elapsed, sent: 1, handled: 2) + : FlowResult.Fail(sw.Elapsed, sent: 1, handled: 0, [.. failures]); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/StreamingDriver.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/StreamingDriver.cs new file mode 100644 index 000000000..0b8e08c42 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/StreamingDriver.cs @@ -0,0 +1,145 @@ +using System.Diagnostics; +using System.Diagnostics.CodeAnalysis; +using System.Globalization; +using System.Security.Cryptography; +using System.Text.Encodings.Web; +using System.Text.Json; +using System.Text.Json.Serialization; +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Contracts.Messages; +using ServiceConnect.Examples.StressHarness.Patterns.Handlers; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.StressHarness.Patterns; + +/// +/// Drives a single chunked stream from sender to receiver per +/// direction and asserts the byte sequence the receiver reassembles is identical +/// to what was written, by SHA-256 digest. The payload is a deterministic +/// JSON-serialised sized to comfortably exceed a +/// single transport packet so the chunked write path is exercised end-to-end. +/// +/// +/// +/// The driver serialises the message itself rather than relying on the framework's +/// serializer because writes raw bytes — the +/// caller is responsible for producing a byte sequence the framework's stream +/// processor can deserialise on receive. The serialiser options here mirror the +/// framework's defaults (relaxed Unicode escaping, emit nulls, case-sensitive +/// property names) so the framework's StreamProcessor.Deserialize consumes +/// the same bytes the driver hashed. +/// +/// +/// Flow correlation rides on because the +/// stream API exposes no caller-header pathway. The receiver-side handler reads +/// the correlation id from the deserialised message body and indexes its +/// observation under it. +/// +/// +public sealed class StreamingDriver(FlowAccounting accounting, StreamObservations observations) : IPatternDriver +{ + public string Name => "streaming"; + public bool RequiresPersistence => false; + + // Mirror the framework's SystemTextJsonMessageSerializer wire-compat settings so + // the bytes the driver sends round-trip cleanly through StreamProcessor.Deserialize. + // Mismatched options would produce JSON the framework can't deserialise, surfacing + // as a stream-completion warning rather than a usable integrity check. + private static readonly JsonSerializerOptions WireOptions = new() + { + Encoder = JavaScriptEncoder.UnsafeRelaxedJsonEscaping, + NumberHandling = JsonNumberHandling.AllowReadingFromString, + PropertyNameCaseInsensitive = false, + IncludeFields = false, + DefaultIgnoreCondition = JsonIgnoreCondition.Never, + MaxDepth = 32, + }; + + // Payload size and chunk boundaries: roughly 48 KiB of binary payload inflates + // (under base64 in JSON) to a serialised message of ~65 KiB, which is split into + // three writes so the chunked send path runs at least three SendBytesAsync round + // trips against the broker. The exact byte counts are not load-bearing — the + // assertion compares end-to-end SHA-256 digests — but the magnitude is chosen so + // the test is meaningful (the single-packet fast path would not exercise the + // multi-packet reassembly machinery). + private const int PayloadSeedBytes = 48 * 1024; + + [SuppressMessage("Style", "IDE0060", Justification = "Threaded through to satisfy IPatternDriver contract; the stream targets the receiver bus's queue regardless of which IBus reference the harness passes.")] + public async Task RunFlowAsync(IBus sender, IBus receiver, StressFlowContext context, CancellationToken cancellationToken) + { + _ = receiver; + var sw = Stopwatch.StartNew(); + var failures = new List(); + + var receiverEndpoint = context.ExpectedReceiver == BusIdentity.Alpha ? "stress-a.work" : "stress-b.work"; + var receiverTag = context.ExpectedReceiver.ToHeaderValue(); + + // ExecuteAsync runs exactly once per fully-reassembled stream — the + // close-packet → dispatch handshake is single-shot inside the framework's + // StreamProcessor. One booked invocation aligns with the reconciliation + // pass at end-of-run. + accounting.RecordSend(context.FlowId, expectedHandlerInvocations: 1); + + // Deterministic payload from a flow-id-derived seed so the bytes are + // reproducible across the two directional flows; the SHA digest is what's + // compared, but determinism makes a failure log easier to interpret. + var payload = new byte[PayloadSeedBytes]; + new Random(unchecked(context.FlowId.GetHashCode())).NextBytes(payload); + + var message = new DocumentUploaded(context.FlowId) + { + FileName = string.Create(CultureInfo.InvariantCulture, $"flow-{context.FlowId:N}.bin"), + Payload = payload, + }; + + // Serialise to a byte[] so the driver can hash the wire bytes once and feed + // the same buffer to the chunk loop without re-encoding. UTF-8 is the wire + // format used by SystemTextJsonMessageSerializer. + var jsonBytes = JsonSerializer.SerializeToUtf8Bytes(message, WireOptions); + var sentDigest = Convert.ToHexStringLower(SHA256.HashData(jsonBytes)); + + // Three chunks: length/3, length/3, remainder. The exact split isn't load- + // bearing — the receiver concatenates packets in PacketNumber order — but + // a deterministic split keeps failures reproducible. + var third = jsonBytes.Length / 3; + + try + { + await using (var stream = sender.CreateStream(receiverEndpoint)) + { + await stream.WriteAsync(jsonBytes.AsMemory(0, third), cancellationToken).ConfigureAwait(false); + await stream.WriteAsync(jsonBytes.AsMemory(third, third), cancellationToken).ConfigureAwait(false); + await stream.WriteAsync(jsonBytes.AsMemory(2 * third, jsonBytes.Length - (2 * third)), cancellationToken).ConfigureAwait(false); + await stream.CloseAsync(cancellationToken).ConfigureAwait(false); + } + + var observation = await observations.AwaitAsync(context.FlowId, cancellationToken).ConfigureAwait(false); + + if (!string.Equals(observation.Sha256, sentDigest, StringComparison.Ordinal)) + { + failures.Add(string.Create(CultureInfo.InvariantCulture, + $"streaming {context.Origin.ToHeaderValue()}->{receiverTag}: expected SHA-256 {sentDigest} but observed {observation.Sha256}")); + } + if (observation.Bytes != jsonBytes.Length) + { + failures.Add(string.Create(CultureInfo.InvariantCulture, + $"streaming {context.Origin.ToHeaderValue()}->{receiverTag}: expected {jsonBytes.Length} bytes but observed {observation.Bytes}")); + } + if (!string.Equals(observation.BusTag, receiverTag, StringComparison.Ordinal)) + { + failures.Add(string.Create(CultureInfo.InvariantCulture, + $"streaming {context.Origin.ToHeaderValue()}->{receiverTag}: expected dispatch on '{receiverTag}' but observed '{observation.BusTag}'")); + } + } + catch (OperationCanceledException) + { + failures.Add(string.Create(CultureInfo.InvariantCulture, + $"streaming {context.Origin.ToHeaderValue()}->{receiverTag}: stream did not reassemble within {context.FlowTimeout}")); + } + + sw.Stop(); + return failures.Count == 0 + ? FlowResult.Pass(sw.Elapsed, sent: 1, handled: 1) + : FlowResult.Fail(sw.Elapsed, sent: 1, handled: 0, [.. failures]); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/StressFlowContext.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/StressFlowContext.cs new file mode 100644 index 000000000..f40b2ae60 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/StressFlowContext.cs @@ -0,0 +1,8 @@ +namespace ServiceConnect.Examples.StressHarness.Patterns; + +public sealed record StressFlowContext( + Guid FlowId, + BusIdentity Origin, + BusIdentity ExpectedReceiver, + string PatternName, + TimeSpan FlowTimeout); diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/StressHeaders.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/StressHeaders.cs new file mode 100644 index 000000000..e5ba6f99b --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/StressHeaders.cs @@ -0,0 +1,24 @@ +namespace ServiceConnect.Examples.StressHarness.Patterns; + +public static class StressHeaders +{ + public const string FlowId = "X-Stress-FlowId"; + public const string OriginBus = "X-Stress-Origin-Bus"; + public const string Pattern = "X-Stress-Pattern"; + public const string MessageId = "X-Stress-MessageId"; +} + +public enum BusIdentity { Alpha, Beta } + +public static class BusIdentityExtensions +{ + public static string ToHeaderValue(this BusIdentity bus) => bus switch + { + BusIdentity.Alpha => "alpha", + BusIdentity.Beta => "beta", + _ => throw new ArgumentOutOfRangeException(nameof(bus), bus, null), + }; + + public static BusIdentity Other(this BusIdentity bus) => + bus == BusIdentity.Alpha ? BusIdentity.Beta : BusIdentity.Alpha; +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Telemetry/TelemetryObservations.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Telemetry/TelemetryObservations.cs new file mode 100644 index 000000000..acd12a8a8 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/Telemetry/TelemetryObservations.cs @@ -0,0 +1,137 @@ +using System.Collections.Concurrent; +using System.Diagnostics; +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Telemetry; + +namespace ServiceConnect.Examples.StressHarness.Patterns.Telemetry; + +/// +/// Captures every emitted by the framework's +/// for the lifetime of the harness +/// process. A single instance is shared across both buses; the registered +/// is process-global so one subscription picks up +/// spans from any number of buses without per-bus wiring. +/// +/// +/// +/// The listener subscribes to +/// (currently ServiceConnect.Telemetry.Bus) and records every stopped +/// activity into a per-flow bag indexed by the +/// messaging.message.conversation_id tag the framework stamps from the +/// message's CorrelationId. Spans whose tag is missing or unparseable are +/// dropped — the harness only emits activities under a fully populated flow id, +/// so a missing tag indicates a span the driver does not own and would not +/// inspect anyway. +/// +/// +/// Per-flow rows are reclaimed by the dispatcher via +/// at the end of each flow so a long-running +/// soak does not retain one snapshot per delivered span; the driver looks up +/// its flow via before the reclamation +/// runs. +/// +/// +/// tears down the listener subscription. The harness +/// holds the singleton for its full lifetime, so disposal happens only when the +/// process exits; the listener-based ActivitySource model documents that +/// undisposed listeners leak via the source's listener list, hence the explicit +/// IDisposable to keep the harness's shutdown story clean. +/// +/// +public sealed class TelemetryObservations : IDisposable, IFlowKeyedSingleton +{ + private readonly ActivityListener _listener; + private readonly ConcurrentDictionary> _byFlow = new(); + private bool _disposed; + + public TelemetryObservations() + { + _listener = new ActivityListener + { + // Filter by the framework's own ActivitySource name so the listener + // does not capture host-worker or ASP.NET spans that share the + // ambient AsyncLocal context — the driver's assertion is scoped + // strictly to ServiceConnect-emitted activities. + ShouldListenTo = source => source.Name == ServiceConnectActivitySource.ActivitySourceName, + Sample = (ref ActivityCreationOptions _) => ActivitySamplingResult.AllData, + ActivityStopped = activity => + { + // Snapshot the tags and conversation-id here under the + // activity's own Stop() callback — the framework recycles + // some internal Activity state after the listener returns, + // so deferring the read until the driver wakes can observe + // stale tag values on instrumented builds. The snapshot is a + // shallow record and the activity itself is not retained. + var conversationId = activity.GetTagItem(MessagingAttributes.MessageConversationId) as string; + if (string.IsNullOrEmpty(conversationId)) + { + return; + } + + // Accept both the framework's default ("D" with dashes, written + // by ServiceConnectActivitySource via Guid.ToString()) and the + // dash-stripped "N" form that the harness uses in some + // adjacent headers. Anything else is a span this listener does + // not own and the driver would not inspect. + if (!Guid.TryParseExact(conversationId, "D", out var flowId) + && !Guid.TryParseExact(conversationId, "N", out flowId)) + { + return; + } + + var snapshot = new ActivitySnapshot( + Name: activity.OperationName, + Kind: activity.Kind, + DisplayName: activity.DisplayName, + ConversationId: conversationId); + + var bag = _byFlow.GetOrAdd(flowId, _ => []); + bag.Add(snapshot); + }, + }; + ActivitySource.AddActivityListener(_listener); + } + + /// + /// Returns every span captured for so far. The + /// returned collection reflects the bag at call time; subsequent emissions + /// are observed on the next call. Empty if the flow has no captured spans + /// (e.g. the driver polled before the framework stopped the Consumer + /// activity). + /// + public IReadOnlyCollection GetActivitiesFor(Guid flowId) => + _byFlow.TryGetValue(flowId, out var bag) + ? bag + : []; + + /// + /// Drops the per-flow snapshot bag for every id in + /// . Ids the listener never observed are + /// ignored. + /// + public void TryRemoveCompleted(IEnumerable completedFlowIds) + { + foreach (var id in completedFlowIds) + { + _byFlow.TryRemove(id, out _); + } + } + + public void Dispose() + { + if (_disposed) + { + return; + } + _disposed = true; + _listener.Dispose(); + } +} + +/// +/// Immutable record of a single activity captured by the harness's +/// . Carries the minimum the driver needs for +/// per-flow filtering — operation name, kind, display name, and the +/// conversation id stamped from the message's CorrelationId. +/// +public sealed record ActivitySnapshot(string Name, ActivityKind Kind, string DisplayName, string? ConversationId); diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/TelemetryDriver.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/TelemetryDriver.cs new file mode 100644 index 000000000..ad3038dc1 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Patterns/TelemetryDriver.cs @@ -0,0 +1,118 @@ +using System.Diagnostics; +using System.Diagnostics.CodeAnalysis; +using System.Globalization; +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Contracts.Messages; +using ServiceConnect.Examples.StressHarness.Patterns.Telemetry; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; + +namespace ServiceConnect.Examples.StressHarness.Patterns; + +/// +/// Drives a single publish across the bus pair with +/// +/// wired into both buses. The framework's telemetry middleware emits a Producer +/// activity on the publishing bus and a Consumer activity on the receiving bus; +/// a process-global captures every span into +/// . The driver asserts at least one activity +/// carrying this flow's correlation id (stamped via the framework as +/// messaging.message.conversation_id) was emitted. +/// +/// +/// +/// Routing follows the pub/sub shape: fans the +/// message out across the shared fanout exchange so each bus binds its own queue +/// to it. The receiver-side handler suppresses the local echo, leaving exactly +/// one cross-tenant invocation per flow — the driver's accounting and the +/// telemetry span count both align on that single delivery. +/// +/// +/// The driver waits for the handler signal first to gate on dispatch completion, +/// then polls until +/// the per-flow span lands or the timeout expires. The poll is needed because +/// the outer Consumer activity's Stop() is invoked by the framework's +/// processing pipeline after the handler returns; the rendezvous fires inside +/// the handler so the listener's ActivityStopped callback runs strictly +/// after the driver's await wakes. +/// +/// +public sealed class TelemetryDriver(FlowAccounting accounting, PerHandlerSignal signals, TelemetryObservations observations) : IPatternDriver +{ + // Poll interval for the per-flow span landing in the observations bag. The + // handler signal precedes the Consumer activity's Stop() callback in the + // framework's processing pipeline, so polling here closes the unavoidable + // wake-time gap without adding a second rendezvous on the listener. + private static readonly TimeSpan SpanPollInterval = TimeSpan.FromMilliseconds(10); + + public string Name => "telemetry"; + public bool RequiresPersistence => false; + + [SuppressMessage("Style", "IDE0060", Justification = "Threaded through to satisfy IPatternDriver contract; pub/sub fan-out flows one way.")] + public async Task RunFlowAsync(IBus sender, IBus receiver, StressFlowContext context, CancellationToken cancellationToken) + { + var sw = Stopwatch.StartNew(); + var failures = new List(); + + var message = new TracedEvent(context.FlowId) { Topic = context.FlowId.ToString("N") }; + var publishOptions = new PublishOptions + { + Headers = new Dictionary(StringComparer.Ordinal) + { + [StressHeaders.FlowId] = context.FlowId.ToString("N"), + [StressHeaders.OriginBus] = context.Origin.ToHeaderValue(), + [StressHeaders.Pattern] = Name, + }, + }; + + accounting.RecordSend(context.FlowId, expectedHandlerInvocations: 1); + await sender.PublishAsync(message, publishOptions, cancellationToken).ConfigureAwait(false); + + try + { + var invocation = await signals.AwaitAsync(context.FlowId, cancellationToken).ConfigureAwait(false); + var crossCheck = CrossTenantAssertions.Check(invocation.Headers, context.ExpectedReceiver, invocation.BusTag); + if (!crossCheck.Ok) + { + failures.Add(crossCheck.Failure); + } + + // The framework stamps the message's CorrelationId onto the Producer + // and Consumer activities as messaging.message.conversation_id; the + // observations singleton indexes captured spans by that id so the + // driver looks up its flow directly without scanning every emitted + // span. The flow id is the message's CorrelationId so concurrent + // direction siblings do not cross-contaminate the assertion. + var perFlowSpans = await WaitForFlowSpanAsync(context.FlowId, cancellationToken).ConfigureAwait(false); + + if (perFlowSpans.Count == 0) + { + failures.Add(string.Create(CultureInfo.InvariantCulture, + $"telemetry {context.Origin.ToHeaderValue()}->{context.ExpectedReceiver.ToHeaderValue()}: no activity captured for flow {context.FlowId}")); + } + } + catch (OperationCanceledException) + { + failures.Add(string.Create(CultureInfo.InvariantCulture, + $"telemetry {context.Origin.ToHeaderValue()}->{context.ExpectedReceiver.ToHeaderValue()}: handler did not fire within {context.FlowTimeout}")); + } + + sw.Stop(); + return failures.Count == 0 + ? FlowResult.Pass(sw.Elapsed, sent: 1, handled: 1) + : FlowResult.Fail(sw.Elapsed, sent: 1, handled: 0, [.. failures]); + } + + private async Task> WaitForFlowSpanAsync(Guid flowId, CancellationToken cancellationToken) + { + while (true) + { + var matches = observations.GetActivitiesFor(flowId); + if (matches.Count > 0) + { + return matches; + } + await Task.Delay(SpanPollInterval, cancellationToken).ConfigureAwait(false); + } + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Program.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Program.cs new file mode 100644 index 000000000..9216931d7 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Program.cs @@ -0,0 +1,528 @@ +using System.Net; +using System.Runtime.InteropServices; +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.DependencyInjection.Extensions; +using Microsoft.Extensions.Logging; +using ServiceConnect.Examples.StressHarness.Assertions; +using ServiceConnect.Examples.StressHarness.Chaos; +using ServiceConnect.Examples.StressHarness.Cli; +using ServiceConnect.Examples.StressHarness.Contracts.Messages; +using ServiceConnect.Examples.StressHarness.Orchestrator; +using ServiceConnect.Examples.StressHarness.Patterns; +using ServiceConnect.Examples.StressHarness.Patterns.Aggregators; +using ServiceConnect.Examples.StressHarness.Patterns.Filters; +using ServiceConnect.Examples.StressHarness.Patterns.Handlers; +using ServiceConnect.Examples.StressHarness.Patterns.Middleware; +using ServiceConnect.Examples.StressHarness.Patterns.Telemetry; +using ServiceConnect.Examples.StressHarness.Reporting; +using ServiceConnect.Interfaces; +using ServiceConnect.Telemetry; + +try +{ + var opts = HarnessCliParser.Parse(args); + + // --chaos docker drives the kill / restart loop that only makes sense + // when the run is long enough for the kill→downtime→restart cadence to + // execute more than once. Smoke and throughput runs complete inside a + // single kill-interval, so the chaos scheduler would never fire and the + // chaos report rows would be empty noise; fail fast at parse time + // rather than surface an empty kill log to the operator. + if (opts.Chaos == "docker" && opts.Mode != "soak") + { + Console.Error.WriteLine("error: --chaos docker is only supported with --mode soak"); + return 2; + } + + using var loggerFactory = LoggerFactory.Create(b => b.AddConsole().SetMinimumLevel(LogLevel.Information)); + + // Snapshot the runtime environment once at startup. Host name is captured via DNS + // rather than Environment.MachineName so the value matches the FQDN the operator + // would see in a deployment dashboard; the runtime description includes both the + // framework moniker and the patch revision so a report from net10.0.3 is + // distinguishable from net10.0.0. + var metadata = new ReportMetadata( + Hostname: Dns.GetHostName(), + RuntimeVersion: RuntimeInformation.FrameworkDescription, + BrokerUri: opts.BrokerUri, + PersistenceMode: opts.Persistence); + + var harnessOptions = new HarnessOptions( + BrokerUri: opts.BrokerUri, + PersistenceMode: opts.Persistence, + MongoConnectionString: opts.Persistence == "mongo" ? "mongodb://localhost:27017" : null, + FlowTimeout: opts.FlowTimeout, + MemoryBudgetBytes: opts.MemoryBudgetBytes, + ReportDir: opts.ReportDir); + + var accounting = new FlowAccounting(); + var signals = new PerHandlerSignal(); + var workItemCounters = new WorkItemCounters(); + var filterTrail = new FilterTrail(); + var sagaObservations = new SagaObservations(); + var aggregatorObservations = new AggregatorObservations(); + var slipTrail = new SlipTrail(); + var streamObservations = new StreamObservations(); + var middlewareTrail = new MiddlewareTrail(); + var messageLedger = new MessageLedger(); + var chaosClock = new ChaosClock(); + // Construct the telemetry observations singleton BEFORE the bus pair is + // started so the process-global ActivityListener is subscribed in time to + // observe the buses' first telemetry spans. The observations instance is + // shared across both buses; the same listener picks up activities emitted + // by either bus because the framework's ActivitySource is process-global. + using var telemetryObservations = new TelemetryObservations(); + + // Flow-keyed accumulators are grouped here so the dispatcher can reclaim + // per-flow rows at end-of-tick. Without this reclamation pass the soak's + // per-flow dictionaries would grow with the cumulative flow count rather + // than the in-flight set, and the 50 MB memory budget would catch normal + // growth instead of real leaks. + IReadOnlyList flowKeyedSingletons = + [ + filterTrail, + sagaObservations, + aggregatorObservations, + middlewareTrail, + slipTrail, + streamObservations, + telemetryObservations, + messageLedger, + ]; + + IReadOnlyList drivers = + [ + new PointToPointDriver(accounting, signals), + new PublishSubscribeDriver(accounting, signals), + new RequestReplyDriver(accounting, signals), + new CompetingConsumersDriver(accounting, signals, workItemCounters), + new ContentBasedRoutingDriver(accounting, signals), + new PolymorphicMessagesDriver(accounting, signals), + new FiltersDriver(accounting, signals, filterTrail), + new ProcessManagerDriver(accounting, signals, sagaObservations), + new AggregatorDriver(accounting, aggregatorObservations), + new ScatterGatherDriver(accounting, signals), + new RoutingSlipDriver(accounting, signals, slipTrail), + new StreamingDriver(accounting, streamObservations), + new CustomFilterAndMiddlewareDriver(accounting, signals, middlewareTrail), + new TelemetryDriver(accounting, signals, telemetryObservations), + ]; + + // Composite handler-reference list spans every pattern driver wired up below. + // HarnessHost pre-registers an empty IReadOnlyList before + // AddServiceConnect runs (so the framework's TryAddSingleton inside RegisterHandlers + // is a no-op); the per-bus callback below Replaces that empty list with this one. + // MessageTypeRegistry is registered via a factory that resolves IReadOnlyList + // lazily, so the swap is observed at first registry build. + var handlerReferences = new List + { + new() { MessageType = typeof(P2pPing), HandlerType = typeof(P2pHandler) }, + new() { MessageType = typeof(PubSubEvent), HandlerType = typeof(PubSubHandler) }, + new() { MessageType = typeof(QuoteRequest), HandlerType = typeof(QuoteRequestHandler) }, + new() { MessageType = typeof(WorkItem), HandlerType = typeof(WorkItemHandler) }, + new() { MessageType = typeof(PremiumOrder), HandlerType = typeof(PremiumOrderHandler) }, + new() { MessageType = typeof(StandardOrder), HandlerType = typeof(StandardOrderHandler) }, + // DomainEvent ref drives dispatch — the base-type entry instructs the registry + // to build a descriptor for IMessageHandler, which the hierarchy + // walk in HandlerProcessor reaches when a concrete derived event arrives. The + // two concrete entries (OrderPlacedEvent / OrderShippedEvent) exist so the + // bus binds the receiver queue to each concrete type's fanout exchange; without + // them the published deliveries would never reach the queue, because the + // DomainEvent exchange is never published to (the type is abstract). + new() { MessageType = typeof(DomainEvent), HandlerType = typeof(DomainEventHandler) }, + new() { MessageType = typeof(OrderPlacedEvent), HandlerType = typeof(DomainEventHandler) }, + new() { MessageType = typeof(OrderShippedEvent), HandlerType = typeof(DomainEventHandler) }, + new() { MessageType = typeof(FilteredMessage), HandlerType = typeof(FilteredMessageHandler) }, + new() { MessageType = typeof(SagaStarted), HandlerType = typeof(SagaHandler) }, + new() { MessageType = typeof(SagaIntermediate), HandlerType = typeof(SagaHandler) }, + new() { MessageType = typeof(SagaCompleted), HandlerType = typeof(SagaHandler) }, + new() { MessageType = typeof(TelemetrySlice), HandlerType = typeof(StressTelemetrySliceAggregator) }, + new() { MessageType = typeof(SearchRequest), HandlerType = typeof(SearchRequestHandler) }, + new() { MessageType = typeof(SlipOrder), HandlerType = typeof(SlipOrderHandler) }, + new() { MessageType = typeof(DocumentUploaded), HandlerType = typeof(DocumentUploadedHandler) }, + new() { MessageType = typeof(DedupedMessage), HandlerType = typeof(DedupedMessageHandler) }, + new() { MessageType = typeof(TracedEvent), HandlerType = typeof(TracedEventHandler) }, + }; + + await using var host = await HarnessHost.StartAsync( + harnessOptions, + registerPerBus: (builder, busTag) => + { + // Filter registration must be on the builder (it appends to the bus's + // pipeline configuration), not inside AddRegistration. The DI factory for + // the filter itself lives below alongside the handler registrations so + // the framework's IServiceProvider.GetRequiredService + // call at dispatch time resolves to an instance closing over the shared + // FilterTrail singleton. + builder.AddBeforeConsumingFilter(); + builder.AddBeforeConsumingFilter(); + + // Custom-filter-and-middleware driver wires every stage of the inbound + // pipeline: a BeforeConsuming filter, a MessageProcessing middleware + // around the dispatch, and an OnConsumedSuccessfully filter after the + // handler completes. Each stage records into the shared MiddlewareTrail + // so the driver can assert the full five-element order. + builder.AddBeforeConsumingFilter(); + builder.AddMessageProcessingMiddleware(); + builder.AddOnConsumedSuccessfullyFilter(); + + // Telemetry driver wires the framework's built-in telemetry + // middleware onto both buses. The process-global + // TelemetryObservations singleton (constructed above) holds the + // ActivityListener that captures every Producer / Consumer span + // the framework emits; the driver inspects that bag after the + // handler signal fires. + builder.AddTelemetry(); + + builder.AddRegistration(services => + { + // Replace the HarnessHost-supplied empty handler-reference list with + // the driver-composed list so MessageTypeRegistry recognises P2pPing + // at dispatch (otherwise the dispatcher rejects the inbound message + // as Unregistered and routes it as not-handled). + services.Replace(ServiceDescriptor.Singleton>(handlerReferences)); + + // Default broker-chaos implementation: NoopBrokerChaos completes + // every operation immediately. Wired in even though the CLI only + // accepts --chaos none today so the contract is observable from + // DI and the follow-up failover harness can swap the implementation + // without touching Program.cs. + services.TryAddSingleton(); + + // Process-wide singletons for the harness orchestration. Both buses + // share the same instances so the driver's await and the receiving + // bus's signal land on the same accounting and rendezvous registry. + services.TryAddSingleton(accounting); + services.TryAddSingleton(signals); + services.TryAddSingleton(workItemCounters); + services.TryAddSingleton(filterTrail); + services.TryAddSingleton(sagaObservations); + services.TryAddSingleton(aggregatorObservations); + services.TryAddSingleton(slipTrail); + services.TryAddSingleton(streamObservations); + services.TryAddSingleton(middlewareTrail); + services.TryAddSingleton(telemetryObservations); + services.TryAddSingleton(messageLedger); + services.TryAddSingleton(chaosClock); + + // Filter is resolved per dispatch via GetRequiredService; transient + // lifetime matches its observational role (no state held on the filter + // itself, all state lives on the shared FilterTrail singleton). + services.AddTransient(sp => new StressTrailFilter( + sp.GetRequiredService())); + services.AddTransient(sp => new AggregatorLedgerFilter( + busTag, + sp.GetRequiredService(), + sp.GetRequiredService())); + + // BeforeConsuming, MessageProcessing, and OnConsumedSuccessfully + // stages for the pipeline-ordering driver. All three close over the + // same shared MiddlewareTrail singleton; transient lifetime matches + // the observational role (no per-instance state). + services.AddTransient(sp => new StressBeforeFilter( + sp.GetRequiredService())); + services.AddTransient(sp => new StressOnSuccessFilter( + sp.GetRequiredService())); + services.AddTransient(sp => new StressProcessingMiddleware( + sp.GetRequiredService())); + + // Factory captures busTag from the registerPerBus closure so the same + // handler class produces an alpha-tagged instance on the alpha bus and + // a beta-tagged instance on the beta bus without inspecting headers. + // Transient lifetime matches the framework's own handler registration + // contract (handlers may not be singletons — HandlerProcessor resolves + // them per dispatched message via GetServices). + services.AddTransient>(sp => new P2pHandler( + busTag, + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService())); + + services.AddTransient>(sp => new PubSubHandler( + busTag, + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService())); + + services.AddTransient>(sp => new QuoteRequestHandler( + busTag, + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService())); + + // Two WorkItemHandler registrations per bus, distinguished by their + // handler tag. GetServices(IMessageHandler) returns both, so + // each delivery fans out across the pair; the competing-consumers driver + // asserts that more than one handler bumped its counter. The handler tags + // are closure-captured constants rather than configuration so the count of + // distinct workers per bus stays at exactly two — the assertion's lower + // bound is meaningful only when the registration count is known. + services.AddTransient>(sp => new WorkItemHandler( + handlerTag: "h1", + busTag, + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService())); + + services.AddTransient>(sp => new WorkItemHandler( + handlerTag: "h2", + busTag, + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService())); + + services.AddTransient>(sp => new PremiumOrderHandler( + busTag, + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService())); + + services.AddTransient>(sp => new StandardOrderHandler( + busTag, + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService())); + + services.AddTransient>(sp => new DomainEventHandler( + busTag, + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService())); + + services.AddTransient>(sp => new FilteredMessageHandler( + busTag, + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService())); + + // SagaHandler implements three IProcessHandler interfaces; each + // must be registered separately so the framework's per-message-type resolution + // (GetRequiredService>) finds the + // matching instance. All three registrations resolve to fresh handler + // instances that close over the same shared singletons — the per-call + // factory makes the busTag visible to the handler without inspecting headers. + services.AddTransient>(sp => new SagaHandler( + busTag, + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService())); + services.AddTransient>(sp => new SagaHandler( + busTag, + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService())); + services.AddTransient>(sp => new SagaHandler( + busTag, + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService())); + + // Aggregator is resolved by the framework via GetRequiredService> + // for each batch flush — not IMessageHandler. The per-bus factory closes + // over the bus tag so the observation record identifies which bus dispatched + // the batch, matching the cross-tenant assertion shape used by the other + // pattern drivers. + services.AddTransient>(sp => new StressTelemetrySliceAggregator( + busTag, + sp.GetRequiredService())); + + // One SearchRequest handler per bus. PublishRequestAsync fans out across the + // SearchRequest type exchange, so a publish from either bus reaches both + // alpha's and beta's queues; each handler replies with its bus tag in + // SearchResponse.CatalogName so the driver can prove the fanout reached both + // subscribers. A single registration per bus keeps the reply count at the + // ExpectedReplyCount = 2 the driver asserts against. + services.AddTransient>(sp => new SearchRequestHandler( + busTag, + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService())); + + // SlipOrder handler runs once per hop on the routing-slip's current + // queue. The factory closes over busTag so the per-flow trail + // records which bus serviced each hop without inspecting envelope + // headers (RouteAsync exposes no header pathway). Both buses + // register the handler so the slip can hop in either direction + // depending on the issuing bus's destination ordering. + services.AddTransient>(sp => new SlipOrderHandler( + busTag, + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService())); + + // Stream handler runs once per reassembled stream. The framework + // resolves IStreamHandler via GetService when the + // close packet arrives — distinct from the IMessageHandler + // resolution path used by every regular consumer — so the factory + // registers against the stream-handler interface explicitly. Only + // one stream-handler registration per message type is permitted by + // StreamHandlerRegistry; the per-bus factory closes over busTag so + // each bus dispatches with its own identity baked in. + services.AddTransient>(sp => new DocumentUploadedHandler( + busTag, + sp.GetRequiredService(), + sp.GetRequiredService())); + + // DedupedMessage handler — sits between the BeforeConsuming filter, + // the MessageProcessing middleware enter/exit pair, and the + // OnConsumedSuccessfully filter. The factory closes over busTag so + // the per-flow trail records which bus serviced each delivery. + services.AddTransient>(sp => new DedupedMessageHandler( + busTag, + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService())); + + // TracedEvent handler — its only job is to fire the rendezvous. + // The telemetry assertion lives in TelemetryObservations, which + // the framework's built-in TelemetryProcessingMiddleware populates + // around dispatch without any handler co-operation. The factory + // closes over busTag so the pub/sub echo-suppression check works + // identically to PubSubHandler. + services.AddTransient>(sp => new TracedEventHandler( + busTag, + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService())); + }); + }, + loggerFactory, + messageLedger, + chaosClock, + CancellationToken.None); + + // Broker-chaos singleton picks up the CLI choice. NoopBrokerChaos is wired + // into DI for handler-side observers; the dispatcher-side reference here + // drives the scheduler that actually executes kill/restart cycles, so the + // docker-compose implementation is materialised eagerly when --chaos + // docker is selected. The compose file path is resolved cwd-independently + // via ResolveComposeFile — the harness can be launched from either + // examples/StressHarness/ (run.sh's pattern) or the repo root (dotnet run + // --project examples/StressHarness/...) and either picks up the compose + // file beside the harness sources or accepts an explicit override via + // --chaos-compose-file. + IBrokerChaos brokerChaos = opts.Chaos switch + { + "docker" => new DockerComposeBrokerChaos( + composeFile: ResolveComposeFile(opts.ChaosComposeFile), + projectName: "stress-harness", + runner: new SystemProcessRunner(), + stopTimeout: opts.ChaosStopTimeout), + _ => new NoopBrokerChaos(), + }; + + ChaosScheduler? chaosScheduler = opts.Chaos == "docker" + ? new ChaosScheduler(brokerChaos, chaosClock, "rabbitmq", opts.ChaosInterval, opts.ChaosDowntime) + : null; + + using var console = new ConsoleReporter(); + var dispatcher = new ModeDispatcher( + opts, + drivers, + host, + accounting, + console, + metadata, + flowKeyedSingletons, + loggerFactory.CreateLogger(), + chaosClock, + chaosScheduler); + + var report = await dispatcher.RunAsync(CancellationToken.None); + report = report with { MessageLedger = MessageLedgerAnalyzer.Analyze(messageLedger.Snapshot()) }; + + Directory.CreateDirectory(opts.ReportDir); + await JsonReportWriter.WriteAsync(report, Path.Combine(opts.ReportDir, "report.json"), CancellationToken.None); + await MarkdownReportWriter.WriteAsync(report, Path.Combine(opts.ReportDir, "report.md"), CancellationToken.None); + + console.Summary(report); + + return report.FailedFlows == 0 && report.ProcessAssertionFailures.Count == 0 ? 0 : 1; +} +catch (ArgumentException ex) +{ + Console.Error.WriteLine($"error: {ex.Message}"); + return 2; +} +catch (NotSupportedException ex) +{ + Console.Error.WriteLine($"error: {ex.Message}"); + return 2; +} +catch (FileNotFoundException ex) +{ + // Surfaces ResolveComposeFile's not-found error when --chaos docker can't + // locate docker-compose.yml. Exit 2 matches the other CLI / startup errors + // (bad argument, broker unreachable) so callers can distinguish a + // configuration mistake from a soak-level failure (exit 1). + Console.Error.WriteLine($"error: {ex.Message}"); + return 2; +} + +// Resolves the docker-compose path used by DockerComposeBrokerChaos. The harness +// is launched from two distinct cwds in practice — examples/StressHarness/ +// (run.sh) and the repo root (dotnet run --project ...) — and a relative path +// works for only one of them. The resolver tries an explicit override first, +// then walks a small set of candidate locations rooted at AppContext.BaseDirectory +// (next to the harness binary, and four levels up — the typical +// bin//net10.0/ to examples/StressHarness/ relationship) and at +// Directory.GetCurrentDirectory(). First-match wins; the returned path is +// always absolute so DockerComposeBrokerChaos's docker-compose invocation +// does not depend on a particular cwd at runtime. +static string ResolveComposeFile(string? explicitPath) +{ + if (!string.IsNullOrEmpty(explicitPath)) + { + var resolved = Path.GetFullPath(explicitPath); + if (!File.Exists(resolved)) + { + throw new FileNotFoundException( + $"--chaos-compose-file '{explicitPath}' does not exist (resolved to '{resolved}')."); + } + + return resolved; + } + + string[] candidates = + [ + Path.Combine(AppContext.BaseDirectory, "docker-compose.yml"), + Path.GetFullPath(Path.Combine(AppContext.BaseDirectory, "..", "..", "..", "..", "docker-compose.yml")), + Path.Combine(Directory.GetCurrentDirectory(), "docker-compose.yml"), + Path.Combine(Directory.GetCurrentDirectory(), "examples", "StressHarness", "docker-compose.yml"), + ]; + + foreach (var candidate in candidates) + { + if (File.Exists(candidate)) + { + return Path.GetFullPath(candidate); + } + } + + throw new FileNotFoundException( + $"--chaos docker could not find docker-compose.yml. Pass --chaos-compose-file explicitly, or run from a directory where the file is reachable. Tried: {string.Join(", ", candidates)}"); +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Reporting/Bytes.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Reporting/Bytes.cs new file mode 100644 index 000000000..2abd6b237 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Reporting/Bytes.cs @@ -0,0 +1,14 @@ +using System.Globalization; + +namespace ServiceConnect.Examples.StressHarness.Reporting; + +public static class Bytes +{ + public static string Format(long bytes) => bytes switch + { + < 1024 => string.Create(CultureInfo.InvariantCulture, $"{bytes} B"), + < 1024L * 1024 => string.Create(CultureInfo.InvariantCulture, $"{bytes / 1024.0:F1} KB"), + < 1024L * 1024 * 1024 => string.Create(CultureInfo.InvariantCulture, $"{bytes / 1_048_576.0:F1} MB"), + _ => string.Create(CultureInfo.InvariantCulture, $"{bytes / 1_073_741_824.0:F2} GB"), + }; +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Reporting/ConsoleReporter.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Reporting/ConsoleReporter.cs new file mode 100644 index 000000000..575bf3096 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Reporting/ConsoleReporter.cs @@ -0,0 +1,151 @@ +using System.Globalization; + +namespace ServiceConnect.Examples.StressHarness.Reporting; + +/// +/// Thread-safe console sink for the orchestrator. Smoke and throughput modes call +/// and to emit a line per flow. +/// Soak mode brackets the loop with / +/// ; while active, per-flow PASS lines are suppressed and +/// a single heartbeat line is emitted every summaryInterval with running +/// totals. Failures still print inline so an operator sees them in real time. +/// +public sealed class ConsoleReporter : IDisposable +{ + private readonly object _gate = new(); + private bool _soakMode; + private Timer? _heartbeatTimer; + private DateTime _soakStartedAt; + private int _soakTickCount; + private int _soakPassedCount; + private int _soakFailedCount; + + public void BeginSoakMode(TimeSpan summaryInterval) + { + lock (_gate) + { + _soakMode = true; + _soakStartedAt = DateTime.UtcNow; + _soakTickCount = 0; + _soakPassedCount = 0; + _soakFailedCount = 0; + _heartbeatTimer = new Timer(_ => EmitSoakHeartbeat(), null, summaryInterval, summaryInterval); + } + } + + public void EndSoakMode() + { + Timer? toDispose; + lock (_gate) + { + toDispose = _heartbeatTimer; + _heartbeatTimer = null; + _soakMode = false; + } + toDispose?.Dispose(); + } + + public void Heartbeat(int tick, int totalTicks, string currentPattern) + { + lock (_gate) + { + if (_soakMode) + { + _soakTickCount = tick; + return; + } + + Console.WriteLine(string.Create(CultureInfo.InvariantCulture, + $"[tick {tick}/{totalTicks}] running {currentPattern}")); + } + } + + public void FlowResult(string patternName, bool succeeded, TimeSpan elapsed, string? failure) + { + lock (_gate) + { + if (_soakMode) + { + if (succeeded) + { + _soakPassedCount++; + return; + } + + _soakFailedCount++; + var failureSuffix = failure is null ? string.Empty : $" — {failure}"; + Console.WriteLine(string.Create(CultureInfo.InvariantCulture, + $" [FAIL] {patternName} ({elapsed.TotalMilliseconds:F0}ms){failureSuffix}")); + return; + } + + var status = succeeded ? "PASS" : "FAIL"; + var suffix = failure is null ? string.Empty : $" — {failure}"; + Console.WriteLine(string.Create(CultureInfo.InvariantCulture, + $" [{status}] {patternName} ({elapsed.TotalMilliseconds:F0}ms){suffix}")); + } + } + + private void EmitSoakHeartbeat() + { + lock (_gate) + { + if (!_soakMode) + { + return; + } + + var elapsedSec = (int)(DateTime.UtcNow - _soakStartedAt).TotalSeconds; + Console.WriteLine(string.Create(CultureInfo.InvariantCulture, + $"[soak +{elapsedSec}s] tick={_soakTickCount} passed={_soakPassedCount} failed={_soakFailedCount}")); + } + } + + public void Summary(Report report) + { + lock (_gate) + { + Console.WriteLine(); + Console.WriteLine("=== Summary ==="); + Console.WriteLine(string.Create(CultureInfo.InvariantCulture, $"Mode: {report.Mode}")); + Console.WriteLine(string.Create(CultureInfo.InvariantCulture, $"Duration: {report.Duration}")); + Console.WriteLine(string.Create(CultureInfo.InvariantCulture, + $"Flows: {report.PassedFlows} passed, {report.FailedFlows} failed of {report.TotalFlows}")); + Console.WriteLine($"Memory: baseline {Bytes.Format(report.MemoryBaselineBytes)} → final {Bytes.Format(report.MemoryFinalBytes)}"); + + var anyFailures = report.Patterns.Any(p => p.AssertionFailures.Count > 0) + || report.ProcessAssertionFailures.Count > 0; + if (!anyFailures) + { + Console.WriteLine("All assertions passed."); + return; + } + + Console.WriteLine(); + Console.WriteLine("Assertion failures:"); + foreach (var p in report.Patterns) + { + foreach (var f in p.AssertionFailures) + { + Console.WriteLine(string.Create(CultureInfo.InvariantCulture, $" [{p.Name}] {f}")); + } + } + + foreach (var f in report.ProcessAssertionFailures) + { + Console.WriteLine(string.Create(CultureInfo.InvariantCulture, $" [process] {f}")); + } + } + } + + public void Dispose() + { + Timer? toDispose; + lock (_gate) + { + toDispose = _heartbeatTimer; + _heartbeatTimer = null; + } + toDispose?.Dispose(); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Reporting/JsonReportWriter.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Reporting/JsonReportWriter.cs new file mode 100644 index 000000000..af4126a6f --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Reporting/JsonReportWriter.cs @@ -0,0 +1,26 @@ +using System.Text.Json; +using System.Text.Json.Serialization; + +namespace ServiceConnect.Examples.StressHarness.Reporting; + +public static class JsonReportWriter +{ + private static readonly JsonSerializerOptions Options = new() + { + PropertyNamingPolicy = JsonNamingPolicy.CamelCase, + WriteIndented = true, + Converters = { new JsonStringEnumConverter() }, + }; + + public static async Task WriteAsync(Report report, string filePath, CancellationToken cancellationToken) + { + var dir = Path.GetDirectoryName(filePath); + if (!string.IsNullOrEmpty(dir)) + { + Directory.CreateDirectory(dir); + } + + await using var stream = File.Create(filePath); + await JsonSerializer.SerializeAsync(stream, report, Options, cancellationToken); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Reporting/MarkdownReportWriter.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Reporting/MarkdownReportWriter.cs new file mode 100644 index 000000000..6df0eeea1 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Reporting/MarkdownReportWriter.cs @@ -0,0 +1,179 @@ +using System.Globalization; +using System.Linq; +using System.Text; +using ServiceConnect.Examples.StressHarness.Assertions; + +namespace ServiceConnect.Examples.StressHarness.Reporting; + +public static class MarkdownReportWriter +{ + public static async Task WriteAsync(Report report, string filePath, CancellationToken cancellationToken) + { + var dir = Path.GetDirectoryName(filePath); + if (!string.IsNullOrEmpty(dir)) + { + Directory.CreateDirectory(dir); + } + + var sb = new StringBuilder(); + sb.AppendLine("# Stress harness report"); + sb.AppendLine(); + sb.AppendLine($"**Host:** {report.Metadata.Hostname}"); + sb.AppendLine($"**Runtime:** {report.Metadata.RuntimeVersion}"); + sb.AppendLine($"**Broker:** {report.Metadata.BrokerUri}"); + sb.AppendLine($"**Persistence:** {report.Metadata.PersistenceMode}"); + sb.AppendLine(); + sb.AppendLine($"**Mode:** {report.Mode}"); + sb.AppendLine($"**Started:** {report.StartedAtUtc.ToString("o", CultureInfo.InvariantCulture)}"); + sb.AppendLine($"**Completed:** {report.CompletedAtUtc.ToString("o", CultureInfo.InvariantCulture)}"); + sb.AppendLine($"**Duration:** {report.Duration}"); + sb.AppendLine($"**Flows:** {report.PassedFlows} / {report.TotalFlows} passed"); + sb.AppendLine($"**Memory:** baseline {Bytes.Format(report.MemoryBaselineBytes)} → final {Bytes.Format(report.MemoryFinalBytes)}"); + sb.AppendLine(); + sb.AppendLine("## Per-pattern results"); + sb.AppendLine(); + sb.AppendLine("| Pattern | Runs | Total P/F | α P/F | β P/F | p50 (ms) | p95 (ms) | p99 (ms) |"); + sb.AppendLine("|---|---|---|---|---|---|---|---|"); + foreach (var p in report.Patterns) + { + sb.AppendLine(string.Create(CultureInfo.InvariantCulture, + $"| {p.Name} | {p.Runs} | {p.Passed}/{p.Failed} | {p.AlphaPassed}/{p.AlphaFailed} | {p.BetaPassed}/{p.BetaFailed} | {p.LatencyP50Ms:F1} | {p.LatencyP95Ms:F1} | {p.LatencyP99Ms:F1} |")); + } + + var anyFailures = report.Patterns.Any(p => p.AssertionFailures.Count > 0) || report.ProcessAssertionFailures.Count > 0; + if (anyFailures) + { + sb.AppendLine(); + sb.AppendLine("## Assertion failures"); + sb.AppendLine(); + foreach (var p in report.Patterns) + { + foreach (var fail in p.AssertionFailures) + { + sb.AppendLine($"- **{p.Name}** — {fail}"); + } + } + foreach (var fail in report.ProcessAssertionFailures) + { + sb.AppendLine($"- **process** — {fail}"); + } + } + + var anyFailedFlows = report.Patterns.Any(p => p.FailedFlows.Count > 0); + if (anyFailedFlows) + { + sb.AppendLine(); + sb.AppendLine("## Failed flows"); + foreach (var p in report.Patterns.Where(p => p.FailedFlows.Count > 0)) + { + sb.AppendLine(); + sb.AppendLine($"### {p.Name}"); + foreach (var f in p.FailedFlows) + { + var causes = string.Join("; ", f.Failures); + sb.AppendLine(string.Create(CultureInfo.InvariantCulture, + $"- **{f.Direction}** `{f.FlowId:D}` — {causes}")); + } + } + } + + // Chaos sections render only when the soak's chaos scheduler was active. + // The block contains two tables: the kill-event timeline (one row per + // kill / restart pair the scheduler executed) and the per-pattern + // breakdown of direction outcomes by ChaosWindow. Both are soft signal — + // the hard chaos assertion is the bus-recovery check that already + // populates ProcessAssertionFailures earlier in the soak. + if (report.Chaos is not null) + { + var chaos = report.Chaos; + sb.AppendLine(); + sb.AppendLine("## Chaos events"); + sb.AppendLine(); + sb.AppendLine($"**Kill events:** {chaos.KillEventCount}"); + sb.AppendLine($"**Duplicate handler invocations:** {chaos.DuplicateHandlerInvocations} (extra handler firings beyond expected — broker redelivery during chaos is expected; pre/post-chaos duplicates would be a real finding)"); + sb.AppendLine(); + sb.AppendLine("| Killed | Restarted | Node |"); + sb.AppendLine("|---|---|---|"); + foreach (var e in chaos.Events) + { + sb.AppendLine($"| {e.KilledAt.ToString("o", CultureInfo.InvariantCulture)} | {e.RestartedAt.ToString("o", CultureInfo.InvariantCulture)} | {e.NodeName} |"); + } + + sb.AppendLine(); + sb.AppendLine("## Per-pattern chaos window breakdown"); + sb.AppendLine(); + sb.AppendLine("| Pattern | Pre | During | InRecovery | Post |"); + sb.AppendLine("|---|---|---|---|---|"); + foreach (var p in chaos.PerPattern) + { + sb.AppendLine(string.Create(CultureInfo.InvariantCulture, + $"| {p.PatternName} | {p.PreChaosCount} | {p.DuringChaosCount} | {p.InRecoveryCount} | {p.PostChaosCount} |")); + } + } + + if (report.MessageLedger is not null) + { + var l = report.MessageLedger; + sb.AppendLine(); + sb.AppendLine("## Message ledger"); + sb.AppendLine(); + sb.AppendLine(string.Create(CultureInfo.InvariantCulture, + $"**Publishes:** {l.TotalPublishes} (acked {l.AckedPublishes} / failed {l.FailedPublishes})")); + sb.AppendLine(string.Create(CultureInfo.InvariantCulture, + $"**Consumes:** {l.TotalConsumes}")); + sb.AppendLine(string.Create(CultureInfo.InvariantCulture, + $"**Acked-but-lost:** {l.AckedButLost}")); + sb.AppendLine(string.Create(CultureInfo.InvariantCulture, + $"**Failed-and-lost:** {l.FailedAndLost}")); + sb.AppendLine(string.Create(CultureInfo.InvariantCulture, + $"**Per-message redeliveries:** {l.PerMessageRedeliveries}")); + if (l.ConsumesWithoutPublish > 0) + { + sb.AppendLine(string.Create(CultureInfo.InvariantCulture, + $"**Consumes without matching publish:** {l.ConsumesWithoutPublish} (instrumentation gap — see spec risks)")); + } + + if (l.AckedButLost > 0) + { + sb.AppendLine(); + sb.AppendLine("### Acked-but-lost breakdown by publish window"); + sb.AppendLine(); + sb.AppendLine("| Window | Count |"); + sb.AppendLine("|---|---|"); + foreach (var kv in l.AckedButLostByWindow.OrderBy(kv => kv.Key)) + { + sb.AppendLine(string.Create(CultureInfo.InvariantCulture, + $"| {kv.Key} | {kv.Value} |")); + } + + sb.AppendLine(); + sb.AppendLine("### Acked-but-lost breakdown by pattern"); + sb.AppendLine(); + sb.AppendLine("| Pattern | Count |"); + sb.AppendLine("|---|---|"); + foreach (var kv in l.AckedButLostByPattern.OrderByDescending(kv => kv.Value)) + { + sb.AppendLine(string.Create(CultureInfo.InvariantCulture, + $"| {kv.Key} | {kv.Value} |")); + } + + if (l.AckedButLostSample.Count > 0) + { + sb.AppendLine(); + sb.AppendLine(string.Create(CultureInfo.InvariantCulture, + $"### Acked-but-lost — first {l.AckedButLostSample.Count} forensic rows")); + sb.AppendLine(); + sb.AppendLine("| MessageId | FlowId | Pattern | OriginBus | PublishStarted | PublishWindow |"); + sb.AppendLine("|---|---|---|---|---|---|"); + foreach (var row in l.AckedButLostSample) + { + sb.AppendLine(string.Create(CultureInfo.InvariantCulture, + $"| {row.MessageId:N} | {row.FlowId:N} | {row.Pattern} | {row.OriginBus} | {row.PublishStarted.ToString("o", CultureInfo.InvariantCulture)} | {row.Window} |")); + } + } + } + } + + await File.WriteAllTextAsync(filePath, sb.ToString(), cancellationToken); + } +} diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Reporting/Report.cs b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Reporting/Report.cs new file mode 100644 index 000000000..bf835952e --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/Reporting/Report.cs @@ -0,0 +1,80 @@ +namespace ServiceConnect.Examples.StressHarness.Reporting; + +public sealed record ReportMetadata( + string Hostname, + string RuntimeVersion, + string BrokerUri, + string PersistenceMode); + +public sealed record Report( + int ReportVersion, + string Mode, + DateTimeOffset StartedAtUtc, + DateTimeOffset CompletedAtUtc, + TimeSpan Duration, + long MemoryBaselineBytes, + long MemoryFinalBytes, + int TotalFlows, + int PassedFlows, + int FailedFlows, + IReadOnlyList Patterns, + IReadOnlyList ProcessAssertionFailures, + ReportMetadata Metadata, + ChaosWindowStats? Chaos, + Assertions.MessageLedgerAnalysis? MessageLedger); + +public sealed record FailedFlowDetail( + Guid FlowId, + string Direction, + IReadOnlyList Failures); + +public sealed record PatternStats( + string Name, + int Runs, + int Passed, + int Failed, + int AlphaPassed, + int AlphaFailed, + int BetaPassed, + int BetaFailed, + double LatencyP50Ms, + double LatencyP95Ms, + double LatencyP99Ms, + IReadOnlyList AssertionFailures, + IReadOnlyList FailedFlows); + +/// +/// Single kill / restart cycle observed by . +/// Mirrors in a report-friendly shape so the +/// JSON / markdown writers don't drag the scheduler type into their surface. +/// +public sealed record ChaosEventSummary( + DateTimeOffset KilledAt, + DateTimeOffset RestartedAt, + string NodeName); + +/// +/// Per-pattern direction counts split by the +/// stamped on each completed . Soft +/// signal — never fails the run; populated only when the soak's chaos +/// scheduler was active. +/// +public sealed record ChaosPatternBreakdown( + string PatternName, + int PreChaosCount, + int DuringChaosCount, + int InRecoveryCount, + int PostChaosCount); + +/// +/// Top-level chaos roll-up attached to when the +/// soak ran with --chaos docker. Smoke / throughput / non-chaos soak +/// runs report a null value so consumers can distinguish "chaos not run" +/// from "chaos run but zero kills" (the latter is a configuration smell — +/// the scheduler interval was longer than the soak duration). +/// +public sealed record ChaosWindowStats( + int KillEventCount, + IReadOnlyList Events, + IReadOnlyList PerPattern, + int DuplicateHandlerInvocations); diff --git a/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/ServiceConnect.Examples.StressHarness.csproj b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/ServiceConnect.Examples.StressHarness.csproj new file mode 100644 index 000000000..3531f1d83 --- /dev/null +++ b/examples/StressHarness/src/ServiceConnect.Examples.StressHarness/ServiceConnect.Examples.StressHarness.csproj @@ -0,0 +1,20 @@ + + + Exe + ServiceConnect.Examples.StressHarness + ServiceConnect.Examples.StressHarness + + + + + + + + + + + + + + + diff --git a/examples/Telemetry/README.md b/examples/Telemetry/README.md new file mode 100644 index 000000000..3c3f1c8c6 --- /dev/null +++ b/examples/Telemetry/README.md @@ -0,0 +1,80 @@ +# Telemetry + +## Overview + +Publish one event from a publisher to multiple subscribers and observe W3C trace-context propagation across the broker. Each subscriber's consume span is a child of the publisher's publish span — all three processes share a single TraceId even though they run as separate OS processes communicating via RabbitMQ. + +The sample uses a plain `ActivityListener` (no OpenTelemetry SDK required). Swapping the listener for a real exporter is a one-line change; see the comment in `Publisher/Program.cs` and the [Observability — Tracing](/ServiceConnect-CSharp/learn/operations/observability/#tracing-opentelemetry) reference for the full picture. + +## Participants + +- `ServiceConnect.Examples.Telemetry.Publisher` — publishes one `OrderPlaced` event +- `ServiceConnect.Examples.Telemetry.BillingSubscriber` — consumes `OrderPlaced`, prints `BILLING:received:` +- `ServiceConnect.Examples.Telemetry.AnalyticsSubscriber` — consumes `OrderPlaced`, prints `ANALYTICS:received:` +- `ServiceConnect.Examples.Telemetry.Contracts` — shared message types + +## Message Flow + +```mermaid +sequenceDiagram + participant Publisher + participant BillingSubscriber + participant AnalyticsSubscriber + Note over Publisher,AnalyticsSubscriber: Single TraceId across all three processes + Publisher->>BillingSubscriber: OrderPlaced (W3C traceparent injected) + Publisher->>AnalyticsSubscriber: OrderPlaced (W3C traceparent injected) + Note over BillingSubscriber: consume span parent = publisher span + Note over AnalyticsSubscriber: consume span parent = publisher span +``` + +## Prerequisites + +`docker compose -f ../docker-compose.yml up -d` + +## Run This Example + +`bash run.sh` + +The script starts both subscribers, waits for them to signal `READY:`, then runs the publisher. After all three processes have emitted their `TRACE:` lines, the script asserts that the TraceId matches across all three and that each subscriber's `ParentSpanId` equals the publisher's `SpanId`, then prints `OK: trace-id correlated across publisher and both subscribers`. + +## Run Manually + +Run both subscribers first, then the publisher. + +`dotnet run --project src/ServiceConnect.Examples.Telemetry.BillingSubscriber/ServiceConnect.Examples.Telemetry.BillingSubscriber.csproj` + +`dotnet run --project src/ServiceConnect.Examples.Telemetry.AnalyticsSubscriber/ServiceConnect.Examples.Telemetry.AnalyticsSubscriber.csproj` + +`dotnet run --project src/ServiceConnect.Examples.Telemetry.Publisher/ServiceConnect.Examples.Telemetry.Publisher.csproj` + +## Expected Output + +`READY:billing-subscriber` + +`READY:analytics-subscriber` + +`READY:telemetry-publisher` + +`SUCCESS:telemetry-publisher:published order` + +`BILLING:received:` + +`ANALYTICS:received:` + +`TRACE:telemetry-publisher::::` + +`TRACE:billing-subscriber::::` + +`TRACE:analytics-subscriber::::` + +`OK: trace-id correlated across publisher and both subscribers` + +Note: The `BILLING:received:` and `ANALYTICS:received:` lines, and the three `TRACE:` lines, may interleave in the output because the subscriber processes run concurrently. The exact order of those lines may vary between runs. + +## What To Notice + +All three `TRACE:` lines carry the **same TraceId** — the W3C `traceparent` header written by the publisher's publish span is extracted by each subscriber and used as the parent context for the consume span. This means a single distributed trace spans two RabbitMQ hops and three OS processes without any shared state. + +Each subscriber's `ParentSpanId` field equals the publisher's `SpanId`, confirming the parent–child relationship. In a real exporter (Jaeger, Zipkin, OTLP collector) these spans appear in one connected waterfall. + +For the conceptual story behind this, see [Observability — Tracing](/ServiceConnect-CSharp/learn/operations/observability/#tracing-opentelemetry). diff --git a/examples/Telemetry/Telemetry.sln b/examples/Telemetry/Telemetry.sln new file mode 100644 index 000000000..d46b2aed4 --- /dev/null +++ b/examples/Telemetry/Telemetry.sln @@ -0,0 +1,168 @@ + +Microsoft Visual Studio Solution File, Format Version 12.00 +# Visual Studio Version 17 +VisualStudioVersion = 17.0.31903.59 +MinimumVisualStudioVersion = 10.0.40219.1 +Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{827E0CD3-B72D-47B6-A68D-7590B98EB39B}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect.Examples.Telemetry.Contracts", "src\ServiceConnect.Examples.Telemetry.Contracts\ServiceConnect.Examples.Telemetry.Contracts.csproj", "{A89521CA-D2C8-40F0-9F3E-319910FEAD66}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect.Interfaces", "..\..\src\ServiceConnect.Interfaces\ServiceConnect.Interfaces.csproj", "{0E7B4A53-0AD8-4EE1-BE3A-E5A723581E98}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect.Examples.Telemetry.Publisher", "src\ServiceConnect.Examples.Telemetry.Publisher\ServiceConnect.Examples.Telemetry.Publisher.csproj", "{E4CCC00D-C917-4920-AE78-A3D5B093A4B9}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect.Examples.Support", "..\ExampleSupport\ServiceConnect.Examples.Support.csproj", "{BB64FD38-F196-480E-A9E9-32FD61260C8D}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect", "..\..\src\ServiceConnect\ServiceConnect.csproj", "{D2E5E0D0-53E7-4E2B-A086-24014157818D}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect.Client.RabbitMQ", "..\..\src\ServiceConnect.Client.RabbitMQ\ServiceConnect.Client.RabbitMQ.csproj", "{64AF6B4E-996C-497C-93E6-B7DFA5B06977}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect.Persistence.MongoDb", "..\..\src\ServiceConnect.Persistence.MongoDb\ServiceConnect.Persistence.MongoDb.csproj", "{F2E51E9D-58E0-496C-9B63-57D5531BC878}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect.Telemetry", "..\..\src\ServiceConnect.Telemetry\ServiceConnect.Telemetry.csproj", "{CD791910-99D8-4519-AA8C-DEE696152A95}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect.Examples.Telemetry.BillingSubscriber", "src\ServiceConnect.Examples.Telemetry.BillingSubscriber\ServiceConnect.Examples.Telemetry.BillingSubscriber.csproj", "{592FF946-89DE-4414-8E89-B1A7923DFB6B}" +EndProject +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ServiceConnect.Examples.Telemetry.AnalyticsSubscriber", 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+EndGlobal diff --git a/examples/Telemetry/run.ps1 b/examples/Telemetry/run.ps1 new file mode 100644 index 000000000..1476ff7b6 --- /dev/null +++ b/examples/Telemetry/run.ps1 @@ -0,0 +1,123 @@ +$ErrorActionPreference = 'Stop' +$PSNativeCommandUseErrorActionPreference = $true + +. "$PSScriptRoot/../scripts/common.ps1" + +$billingSubscriberProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.Telemetry.BillingSubscriber/ServiceConnect.Examples.Telemetry.BillingSubscriber.csproj' +$analyticsSubscriberProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.Telemetry.AnalyticsSubscriber/ServiceConnect.Examples.Telemetry.AnalyticsSubscriber.csproj' +$publisherProject = Join-Path $PSScriptRoot 'src/ServiceConnect.Examples.Telemetry.Publisher/ServiceConnect.Examples.Telemetry.Publisher.csproj' +$billingProcess = $null +$analyticsProcess = $null +$publisherJob = $null + +function Wait-ForSubscribersReady { + $timeout = 30 + $elapsed = 0 + $billingReady = $false + $analyticsReady = $false + + while ($elapsed -lt $timeout) { + if ((Test-Path $OUTPUT_LOG) -and (Select-String -Path $OUTPUT_LOG -Pattern "READY:billing-subscriber" -Quiet) -and -not $billingReady) { + $billingReady = $true + } + if ((Test-Path $OUTPUT_LOG) -and (Select-String -Path $OUTPUT_LOG -Pattern "READY:analytics-subscriber" -Quiet) -and -not $analyticsReady) { + $analyticsReady = $true + } + + if ($billingReady -and $analyticsReady) { + return $true + } + + Start-Sleep -Milliseconds 500 + $elapsed += 0.5 + } + + return $false +} + +function Wait-ForSubscriberSuccess { + $timeout = 30 + $elapsed = 0 + + # Wait for the handlers to print AND for the consume Activity to be Stop()'d + # (which happens AFTER the handler returns). Without that the assertion + # block can race the consume-side TRACE: lines and kill the subscribers + # before they flush, leaving them missing from the log. + while ($elapsed -lt $timeout) { + if ((Test-Path $OUTPUT_LOG) -and + (Select-String -Path $OUTPUT_LOG -Pattern 'SUCCESS:telemetry-publisher:published order' -Quiet) -and + (Select-String -Path $OUTPUT_LOG -Pattern 'BILLING:received:' -Quiet) -and + (Select-String -Path $OUTPUT_LOG -Pattern 'ANALYTICS:received:' -Quiet) -and + (Select-String -Path $OUTPUT_LOG -Pattern '^TRACE:billing-subscriber:[A-Za-z.]+:' -Quiet) -and + (Select-String -Path $OUTPUT_LOG -Pattern '^TRACE:analytics-subscriber:[A-Za-z.]+:' -Quiet)) { + return $true + } + + Start-Sleep -Milliseconds 500 + $elapsed += 0.5 + } + + return $false +} + +$OUTPUT_LOG = Join-Path $PSScriptRoot "output.log" + +try { + Start-ExampleDependencies + "" | Set-Content -Path $OUTPUT_LOG + $billingProcess = Start-Process dotnet -ArgumentList @('run', '--project', $billingSubscriberProject) -PassThru -NoNewWindow -RedirectStandardOutput $OUTPUT_LOG -RedirectStandardError $OUTPUT_LOG + $analyticsProcess = Start-Process dotnet -ArgumentList @('run', '--project', $analyticsSubscriberProject) -PassThru -NoNewWindow -RedirectStandardOutput $OUTPUT_LOG -RedirectStandardError $OUTPUT_LOG -Append + + if (-not (Wait-ForSubscribersReady)) { + throw "Subscribers did not become ready within 30 seconds" + } + + $publisherJob = Start-Job -ScriptBlock { + dotnet run --project $using:publisherProject 2>&1 | Out-File -FilePath $using:OUTPUT_LOG -Append + } + + $publisherJob | Wait-Job | Remove-Job -Force + + if (-not (Wait-ForSubscriberSuccess)) { + throw 'Subscribers did not both receive the order within 30 seconds' + } + + # Trace-correlation assertions ---------------------------------------- + $pubLine = (Select-String -Path $OUTPUT_LOG -Pattern '^TRACE:telemetry-publisher:[A-Za-z.]+:').Line | Select-Object -First 1 + $billLine = (Select-String -Path $OUTPUT_LOG -Pattern '^TRACE:billing-subscriber:[A-Za-z.]+:').Line | Select-Object -First 1 + $analyticsLine = (Select-String -Path $OUTPUT_LOG -Pattern '^TRACE:analytics-subscriber:[A-Za-z.]+:').Line | Select-Object -First 1 + + if (-not $pubLine -or -not $billLine -or -not $analyticsLine) { + throw "FAIL: missing TRACE: line for one or more processes" + } + + # TRACE::::: + $pubParts = $pubLine -split ':' + $billParts = $billLine -split ':' + $analyticsParts = $analyticsLine -split ':' + + $pubTrace = $pubParts[3] + $pubSpan = $pubParts[4] + $billTrace = $billParts[3] + $billParent = $billParts[5] + $analyticsTrace = $analyticsParts[3] + $analyticsParent = $analyticsParts[5] + + if ($pubTrace -ne $billTrace -or $pubTrace -ne $analyticsTrace) { + throw "FAIL: TraceId mismatch (pub=$pubTrace bill=$billTrace analytics=$analyticsTrace)" + } + if ($billParent -ne $pubSpan -or $analyticsParent -ne $pubSpan) { + throw "FAIL: ParentSpanId mismatch (pub=$pubSpan bill=$billParent analytics=$analyticsParent)" + } + Write-Host "OK: trace-id correlated across publisher and both subscribers" +} +finally { + if ($null -ne $billingProcess -and -not $billingProcess.HasExited) { + Stop-Process -Id $billingProcess.Id -Force -ErrorAction SilentlyContinue + $billingProcess.WaitForExit() + } + if ($null -ne $analyticsProcess -and -not $analyticsProcess.HasExited) { + Stop-Process -Id $analyticsProcess.Id -Force -ErrorAction SilentlyContinue + $analyticsProcess.WaitForExit() + } +} diff --git a/examples/Telemetry/run.sh b/examples/Telemetry/run.sh new file mode 100755 index 000000000..9ee82f668 --- /dev/null +++ b/examples/Telemetry/run.sh @@ -0,0 +1,120 @@ +#!/usr/bin/env bash +set -euo pipefail + +SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)" +source "$SCRIPT_DIR/../scripts/common.sh" + +OUTPUT_LOG="$SCRIPT_DIR/output.log" +PIDS=() + +wait_for_ready() { + local timeout=30 + + for i in $(seq 1 $((timeout * 2))); do + if grep -q "READY:billing-subscriber" "$OUTPUT_LOG" && grep -q "READY:analytics-subscriber" "$OUTPUT_LOG"; then + return 0 + fi + sleep 0.5 + done + + return 1 +} + +wait_for_success() { + local timeout=30 + + # Wait for the handlers to print AND for the consume Activity to be Stop()'d + # (which happens AFTER the handler returns, so it's strictly later than the + # BILLING:/ANALYTICS:received: lines). Without this, the assertion block can + # race the consume-side TRACE: lines and kill the subscribers before they + # flush, leaving them missing from the log. + for i in $(seq 1 $((timeout * 2))); do + if grep -q "SUCCESS:telemetry-publisher:published order" "$OUTPUT_LOG" && + grep -q "BILLING:received:" "$OUTPUT_LOG" && + grep -q "ANALYTICS:received:" "$OUTPUT_LOG" && + grep -qE '^TRACE:billing-subscriber:[A-Za-z.]+:' "$OUTPUT_LOG" && + grep -qE '^TRACE:analytics-subscriber:[A-Za-z.]+:' "$OUTPUT_LOG"; then + return 0 + fi + sleep 0.5 + done + + return 1 +} + +start_passive() { + dotnet run --no-build --project "$1" >> "$OUTPUT_LOG" 2>&1 & + PIDS+=("$!") +} + +start_dependencies +prebuild_solution "$SCRIPT_DIR/Telemetry.sln" +> "$OUTPUT_LOG" + +start_passive "$SCRIPT_DIR/src/ServiceConnect.Examples.Telemetry.BillingSubscriber/ServiceConnect.Examples.Telemetry.BillingSubscriber.csproj" +start_passive "$SCRIPT_DIR/src/ServiceConnect.Examples.Telemetry.AnalyticsSubscriber/ServiceConnect.Examples.Telemetry.AnalyticsSubscriber.csproj" + +if ! wait_for_ready; then + echo "ERROR: Subscribers did not become ready within 30 seconds" + for pid in "${PIDS[@]}"; do + kill "$pid" 2>/dev/null || true + done + exit 1 +fi + +dotnet run --no-build --project "$SCRIPT_DIR/src/ServiceConnect.Examples.Telemetry.Publisher/ServiceConnect.Examples.Telemetry.Publisher.csproj" >> "$OUTPUT_LOG" 2>&1 & +PUBLISHER_PID=$! +PIDS+=("$PUBLISHER_PID") +wait "$PUBLISHER_PID" + +if ! wait_for_success; then + echo "ERROR: Subscribers did not both receive the order within 30 seconds" + for pid in "${PIDS[@]}"; do + kill "$pid" 2>/dev/null || true + done + exit 1 +fi + +# Trace-correlation assertions ---------------------------------------- +PUB_LINE=$(grep -E '^TRACE:telemetry-publisher:[A-Za-z.]+:' "$OUTPUT_LOG" | head -n1) +BILL_LINE=$(grep -E '^TRACE:billing-subscriber:[A-Za-z.]+:' "$OUTPUT_LOG" | head -n1) +ANALYTICS_LINE=$(grep -E '^TRACE:analytics-subscriber:[A-Za-z.]+:' "$OUTPUT_LOG" | head -n1) + +if [ -z "$PUB_LINE" ] || [ -z "$BILL_LINE" ] || [ -z "$ANALYTICS_LINE" ]; then + echo "FAIL: missing TRACE: line for one or more processes" >&2 + for pid in "${PIDS[@]}"; do + kill "$pid" 2>/dev/null || true + done + exit 1 +fi + +# TRACE::::: +PUB_TRACE=$(echo "$PUB_LINE" | awk -F: '{print $4}') +PUB_SPAN=$(echo "$PUB_LINE" | awk -F: '{print $5}') +BILL_TRACE=$(echo "$BILL_LINE" | awk -F: '{print $4}') +BILL_PARENT=$(echo "$BILL_LINE" | awk -F: '{print $6}') +ANALYTICS_TRACE=$(echo "$ANALYTICS_LINE" | awk -F: '{print $4}') +ANALYTICS_PARENT=$(echo "$ANALYTICS_LINE" | awk -F: '{print $6}') + +if [ "$PUB_TRACE" != "$BILL_TRACE" ] || [ "$PUB_TRACE" != "$ANALYTICS_TRACE" ]; then + echo "FAIL: TraceId mismatch (pub=$PUB_TRACE bill=$BILL_TRACE analytics=$ANALYTICS_TRACE)" >&2 + for pid in "${PIDS[@]}"; do + kill "$pid" 2>/dev/null || true + done + exit 1 +fi +if [ "$BILL_PARENT" != "$PUB_SPAN" ] || [ "$ANALYTICS_PARENT" != "$PUB_SPAN" ]; then + echo "FAIL: ParentSpanId mismatch (pub=$PUB_SPAN bill=$BILL_PARENT analytics=$ANALYTICS_PARENT)" >&2 + for pid in "${PIDS[@]}"; do + kill "$pid" 2>/dev/null || true + done + exit 1 +fi +echo "OK: trace-id correlated across publisher and both subscribers" + +for pid in "${PIDS[@]}"; do + kill "$pid" 2>/dev/null || true +done +for pid in "${PIDS[@]}"; do + wait "$pid" 2>/dev/null || true +done diff --git a/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.AnalyticsSubscriber/OrderPlacedHandler.cs b/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.AnalyticsSubscriber/OrderPlacedHandler.cs new file mode 100644 index 000000000..a89d0c9b4 --- /dev/null +++ b/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.AnalyticsSubscriber/OrderPlacedHandler.cs @@ -0,0 +1,13 @@ +using ServiceConnect.Examples.Telemetry.Contracts; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.Telemetry.AnalyticsSubscriber; + +public sealed class OrderPlacedHandler : IMessageHandler +{ + public Task HandleAsync(OrderPlaced message, IConsumeContext context, CancellationToken cancellationToken = default) + { + Console.WriteLine($"ANALYTICS:received:{message.OrderId}"); + return Task.CompletedTask; + } +} diff --git a/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.AnalyticsSubscriber/Program.cs b/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.AnalyticsSubscriber/Program.cs new file mode 100644 index 000000000..6345e32da --- /dev/null +++ b/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.AnalyticsSubscriber/Program.cs @@ -0,0 +1,34 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Examples.Telemetry.AnalyticsSubscriber; +using ServiceConnect.Examples.Telemetry.Contracts; +using ServiceConnect.Interfaces; +using ServiceConnect.Telemetry; + +TelemetryConsoleListener.Register("analytics-subscriber"); + +var settings = ExampleSettingsLoader.Load(); +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +var handlerReferences = new List +{ + new() { HandlerType = typeof(OrderPlacedHandler), MessageType = typeof(OrderPlaced) } +}; + +var services = new ServiceCollection(); +services.AddSingleton>(handlerReferences); +services.AddTransient, OrderPlacedHandler>(); +services.AddExampleBus(settings, "analytics-subscriber", + configureBuilder: builder => builder.AddTelemetry()); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); +await bus.StartConsumingAsync(); +ConsoleStatus.Ready("analytics-subscriber"); +await Task.Delay(Timeout.InfiniteTimeSpan); diff --git a/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.AnalyticsSubscriber/ServiceConnect.Examples.Telemetry.AnalyticsSubscriber.csproj b/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.AnalyticsSubscriber/ServiceConnect.Examples.Telemetry.AnalyticsSubscriber.csproj new file mode 100644 index 000000000..0d63177df --- /dev/null +++ b/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.AnalyticsSubscriber/ServiceConnect.Examples.Telemetry.AnalyticsSubscriber.csproj @@ -0,0 +1,11 @@ + + + Exe + + + + + + + + diff --git a/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.AnalyticsSubscriber/TelemetryConsoleListener.cs b/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.AnalyticsSubscriber/TelemetryConsoleListener.cs new file mode 100644 index 000000000..f2a184629 --- /dev/null +++ b/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.AnalyticsSubscriber/TelemetryConsoleListener.cs @@ -0,0 +1,18 @@ +using System.Diagnostics; +using ServiceConnect.Telemetry; + +namespace ServiceConnect.Examples.Telemetry.AnalyticsSubscriber; + +internal static class TelemetryConsoleListener +{ + public static void Register(string endpoint) + { + ActivitySource.AddActivityListener(new ActivityListener + { + ShouldListenTo = src => src.Name == ServiceConnectActivitySource.ActivitySourceName, + Sample = (ref ActivityCreationOptions _) => ActivitySamplingResult.AllData, + ActivityStopped = a => Console.WriteLine( + $"TRACE:{endpoint}:{a.OperationName}:{a.TraceId}:{a.SpanId}:{a.ParentSpanId}"), + }); + } +} diff --git a/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.BillingSubscriber/OrderPlacedHandler.cs b/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.BillingSubscriber/OrderPlacedHandler.cs new file mode 100644 index 000000000..061b524eb --- /dev/null +++ b/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.BillingSubscriber/OrderPlacedHandler.cs @@ -0,0 +1,13 @@ +using ServiceConnect.Examples.Telemetry.Contracts; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.Telemetry.BillingSubscriber; + +public sealed class OrderPlacedHandler : IMessageHandler +{ + public Task HandleAsync(OrderPlaced message, IConsumeContext context, CancellationToken cancellationToken = default) + { + Console.WriteLine($"BILLING:received:{message.OrderId}"); + return Task.CompletedTask; + } +} diff --git a/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.BillingSubscriber/Program.cs b/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.BillingSubscriber/Program.cs new file mode 100644 index 000000000..86e2d6bb8 --- /dev/null +++ b/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.BillingSubscriber/Program.cs @@ -0,0 +1,34 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Examples.Telemetry.BillingSubscriber; +using ServiceConnect.Examples.Telemetry.Contracts; +using ServiceConnect.Interfaces; +using ServiceConnect.Telemetry; + +TelemetryConsoleListener.Register("billing-subscriber"); + +var settings = ExampleSettingsLoader.Load(); +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +var handlerReferences = new List +{ + new() { HandlerType = typeof(OrderPlacedHandler), MessageType = typeof(OrderPlaced) } +}; + +var services = new ServiceCollection(); +services.AddSingleton>(handlerReferences); +services.AddTransient, OrderPlacedHandler>(); +services.AddExampleBus(settings, "billing-subscriber", + configureBuilder: builder => builder.AddTelemetry()); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); +await bus.StartConsumingAsync(); +ConsoleStatus.Ready("billing-subscriber"); +await Task.Delay(Timeout.InfiniteTimeSpan); diff --git a/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.BillingSubscriber/ServiceConnect.Examples.Telemetry.BillingSubscriber.csproj b/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.BillingSubscriber/ServiceConnect.Examples.Telemetry.BillingSubscriber.csproj new file mode 100644 index 000000000..0d63177df --- /dev/null +++ b/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.BillingSubscriber/ServiceConnect.Examples.Telemetry.BillingSubscriber.csproj @@ -0,0 +1,11 @@ + + + Exe + + + + + + + + diff --git a/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.BillingSubscriber/TelemetryConsoleListener.cs b/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.BillingSubscriber/TelemetryConsoleListener.cs new file mode 100644 index 000000000..8ab91a2a8 --- /dev/null +++ b/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.BillingSubscriber/TelemetryConsoleListener.cs @@ -0,0 +1,18 @@ +using System.Diagnostics; +using ServiceConnect.Telemetry; + +namespace ServiceConnect.Examples.Telemetry.BillingSubscriber; + +internal static class TelemetryConsoleListener +{ + public static void Register(string endpoint) + { + ActivitySource.AddActivityListener(new ActivityListener + { + ShouldListenTo = src => src.Name == ServiceConnectActivitySource.ActivitySourceName, + Sample = (ref ActivityCreationOptions _) => ActivitySamplingResult.AllData, + ActivityStopped = a => Console.WriteLine( + $"TRACE:{endpoint}:{a.OperationName}:{a.TraceId}:{a.SpanId}:{a.ParentSpanId}"), + }); + } +} diff --git a/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.Contracts/OrderPlaced.cs b/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.Contracts/OrderPlaced.cs new file mode 100644 index 000000000..4249910d4 --- /dev/null +++ b/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.Contracts/OrderPlaced.cs @@ -0,0 +1,9 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Examples.Telemetry.Contracts; + +public sealed class OrderPlaced(Guid correlationId) : Message(correlationId) +{ + public string OrderId { get; init; } = string.Empty; + public decimal Total { get; init; } +} diff --git a/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.Contracts/ServiceConnect.Examples.Telemetry.Contracts.csproj b/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.Contracts/ServiceConnect.Examples.Telemetry.Contracts.csproj new file mode 100644 index 000000000..02cd0ca30 --- /dev/null +++ b/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.Contracts/ServiceConnect.Examples.Telemetry.Contracts.csproj @@ -0,0 +1,5 @@ + + + + + diff --git a/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.Publisher/Program.cs b/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.Publisher/Program.cs new file mode 100644 index 000000000..0ad11ab5d --- /dev/null +++ b/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.Publisher/Program.cs @@ -0,0 +1,38 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Examples.Support.Bootstrap; +using ServiceConnect.Examples.Support.Configuration; +using ServiceConnect.Examples.Telemetry.Contracts; +using ServiceConnect.Examples.Telemetry.Publisher; +using ServiceConnect.Interfaces; +using ServiceConnect.Telemetry; + +TelemetryConsoleListener.Register("telemetry-publisher"); + +var settings = ExampleSettingsLoader.Load(); +await DependencyWaiter.WaitForRabbitMqAsync( + settings.RabbitMqHost, + settings.RabbitMqPort, + settings.RabbitMqUsername, + settings.RabbitMqPassword, + CancellationToken.None); + +var services = new ServiceCollection(); +services.AddSingleton>([]); +services.AddExampleBus(settings, "telemetry-publisher", + configureBuilder: builder => builder.AddTelemetry()); + +// To export to a real OTel pipeline, replace the listener registration above with: +// services.AddOpenTelemetry() +// .WithTracing(t => t.AddServiceConnectInstrumentation().AddConsoleExporter()); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); + +ConsoleStatus.Ready("telemetry-publisher"); + +await bus.PublishAsync(new OrderPlaced(Guid.NewGuid()) +{ + OrderId = Guid.NewGuid().ToString(), + Total = 42.50m, +}); +ConsoleStatus.Success("telemetry-publisher", "published order"); diff --git a/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.Publisher/ServiceConnect.Examples.Telemetry.Publisher.csproj b/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.Publisher/ServiceConnect.Examples.Telemetry.Publisher.csproj new file mode 100644 index 000000000..0d63177df --- /dev/null +++ b/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.Publisher/ServiceConnect.Examples.Telemetry.Publisher.csproj @@ -0,0 +1,11 @@ + + + Exe + + + + + + + + diff --git a/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.Publisher/TelemetryConsoleListener.cs b/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.Publisher/TelemetryConsoleListener.cs new file mode 100644 index 000000000..5c0889455 --- /dev/null +++ b/examples/Telemetry/src/ServiceConnect.Examples.Telemetry.Publisher/TelemetryConsoleListener.cs @@ -0,0 +1,18 @@ +using System.Diagnostics; +using ServiceConnect.Telemetry; + +namespace ServiceConnect.Examples.Telemetry.Publisher; + +internal static class TelemetryConsoleListener +{ + public static void Register(string endpoint) + { + ActivitySource.AddActivityListener(new ActivityListener + { + ShouldListenTo = src => src.Name == ServiceConnectActivitySource.ActivitySourceName, + Sample = (ref ActivityCreationOptions _) => ActivitySamplingResult.AllData, + ActivityStopped = a => Console.WriteLine( + $"TRACE:{endpoint}:{a.OperationName}:{a.TraceId}:{a.SpanId}:{a.ParentSpanId}"), + }); + } +} diff --git a/examples/appsettings.json b/examples/appsettings.json new file mode 100644 index 000000000..29c59638d --- /dev/null +++ b/examples/appsettings.json @@ -0,0 +1,9 @@ +{ + "Examples": { + "RabbitMqHost": "localhost", + "RabbitMqPort": 5672, + "RabbitMqUsername": "guest", + "RabbitMqPassword": "guest", + "MongoConnectionString": "mongodb://localhost:27017" + } +} diff --git a/examples/docker-compose.yml b/examples/docker-compose.yml new file mode 100644 index 000000000..fae0f4ccc --- /dev/null +++ b/examples/docker-compose.yml @@ -0,0 +1,20 @@ +services: + rabbitmq: + image: rabbitmq:3.13-management + # Pin the hostname so Erlang's net_distribution layer has a stable, valid + # node name. Without this, Docker assigns the container's hash as hostname; + # on some host configurations the resulting node name fails the prelaunch + # auth-cookie check with EACCES because the synthetic hostname isn't + # resolvable in the container's /etc/hosts. The explicit hostname bypasses + # that whole class of startup failures. + hostname: rabbitmq + ports: + - "5672:5672" + - "15672:15672" + environment: + RABBITMQ_DEFAULT_USER: guest + RABBITMQ_DEFAULT_PASS: guest + mongodb: + image: mongo:7.0 + ports: + - "27017:27017" diff --git a/examples/scripts/common.ps1 b/examples/scripts/common.ps1 new file mode 100644 index 000000000..a7a041979 --- /dev/null +++ b/examples/scripts/common.ps1 @@ -0,0 +1,55 @@ +$ErrorActionPreference = 'Stop' +$PSNativeCommandUseErrorActionPreference = $true + +$ExamplesRoot = Split-Path -Parent $PSScriptRoot + +function Start-ExampleDependencies { + docker compose -f "$ExamplesRoot/docker-compose.yml" up -d rabbitmq mongodb +} + +# Polls until RabbitMQ accepts a TCP connection. +function Wait-Rabbit { + param( + [string]$Host = 'localhost', + [int]$Port = 5672 + ) + $maxAttempts = 60 + $attempt = 0 + Write-Host "Waiting for RabbitMQ at ${Host}:${Port}..." + while ($attempt -lt $maxAttempts) { + try { + $tcp = [System.Net.Sockets.TcpClient]::new() + $tcp.Connect($Host, $Port) + $tcp.Close() + Write-Host 'RabbitMQ is ready.' + return + } catch { + Start-Sleep -Seconds 2 + $attempt++ + } + } + throw "RabbitMQ at ${Host}:${Port} did not become ready within $($maxAttempts * 2) seconds." +} + +# Polls until MongoDB responds to an admin ping. +function Wait-Mongo { + param( + [string]$Host = 'localhost', + [int]$Port = 27017 + ) + $maxAttempts = 60 + $attempt = 0 + Write-Host "Waiting for MongoDB at ${Host}:${Port}..." + while ($attempt -lt $maxAttempts) { + try { + $result = mongosh --host $Host --port $Port --quiet --eval "db.adminCommand('ping')" 2>$null + if ($LASTEXITCODE -eq 0) { + Write-Host 'MongoDB is ready.' + return + } + } catch { } + Start-Sleep -Seconds 2 + $attempt++ + } + throw "MongoDB at ${Host}:${Port} did not become ready within $($maxAttempts * 2) seconds." +} diff --git a/examples/scripts/common.sh b/examples/scripts/common.sh new file mode 100644 index 000000000..6b5e33cdf --- /dev/null +++ b/examples/scripts/common.sh @@ -0,0 +1,64 @@ +#!/usr/bin/env bash +set -euo pipefail + +EXAMPLES_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)" + +start_dependencies() { + docker compose -f "$EXAMPLES_ROOT/docker-compose.yml" up -d rabbitmq mongodb +} + +# Polls until RabbitMQ accepts a TCP connection on the given host/port. +# Usage: wait_for_rabbit +wait_for_rabbit() { + local host="$1" + local port="$2" + local max_attempts=60 + local attempt=0 + echo "Waiting for RabbitMQ at $host:$port..." + while [ $attempt -lt $max_attempts ]; do + if nc -z "$host" "$port" 2>/dev/null; then + echo "RabbitMQ is ready." + return 0 + fi + sleep 2 + attempt=$((attempt + 1)) + done + echo "ERROR: RabbitMQ at $host:$port did not become ready within $((max_attempts * 2)) seconds." >&2 + return 1 +} + +# Polls until MongoDB responds to an admin ping on the given host/port. +# Usage: wait_for_mongo +wait_for_mongo() { + local host="$1" + local port="$2" + local max_attempts=60 + local attempt=0 + echo "Waiting for MongoDB at $host:$port..." + while [ $attempt -lt $max_attempts ]; do + if mongosh --host "$host" --port "$port" --quiet --eval "db.adminCommand('ping')" >/dev/null 2>&1; then + echo "MongoDB is ready." + return 0 + fi + sleep 2 + attempt=$((attempt + 1)) + done + echo "ERROR: MongoDB at $host:$port did not become ready within $((max_attempts * 2)) seconds." >&2 + return 1 +} + +# Sequentially builds the example's solution under -m:1 so subsequent +# `dotnet run --no-build` calls become lightweight process-spawn + JIT +# rather than each one triggering its own analyzer-heavy compile. The +# parallel-compile pattern previously hit the dotnet-build.slice cgroup's +# 200-task / 8 G ceiling (MSBuild Copy task OOM, MA0049-style cascade). +# Single argument: absolute path to the .sln (or .slnx). +prebuild_solution() { + local solution_path="$1" + if [ ! -f "$solution_path" ]; then + echo "prebuild_solution: solution not found: $solution_path" >&2 + return 1 + fi + echo "Pre-building $(basename "$solution_path") sequentially (-m:1)..." + dotnet build "$solution_path" -m:1 --nologo --verbosity quiet +} diff --git a/filters/ServiceConnect.Filters.GzipCompression/.nuget/NuGet.Config b/filters/ServiceConnect.Filters.GzipCompression/.nuget/NuGet.Config deleted file mode 100644 index 67f8ea046..000000000 --- a/filters/ServiceConnect.Filters.GzipCompression/.nuget/NuGet.Config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - \ No newline at end of file diff --git a/filters/ServiceConnect.Filters.GzipCompression/.nuget/NuGet.exe b/filters/ServiceConnect.Filters.GzipCompression/.nuget/NuGet.exe deleted file mode 100644 index 9f8781de0..000000000 Binary files a/filters/ServiceConnect.Filters.GzipCompression/.nuget/NuGet.exe and /dev/null differ diff --git a/filters/ServiceConnect.Filters.GzipCompression/.nuget/NuGet.targets b/filters/ServiceConnect.Filters.GzipCompression/.nuget/NuGet.targets deleted file mode 100644 index 3f8c37b22..000000000 --- a/filters/ServiceConnect.Filters.GzipCompression/.nuget/NuGet.targets +++ /dev/null @@ -1,144 +0,0 @@ - - - - $(MSBuildProjectDirectory)\..\ - - - false - - - false - - - true - - - false - - - - - - - - - - - $([System.IO.Path]::Combine($(SolutionDir), ".nuget")) - - - - - $(SolutionDir).nuget - - - - $(MSBuildProjectDirectory)\packages.$(MSBuildProjectName.Replace(' ', '_')).config - $(MSBuildProjectDirectory)\packages.$(MSBuildProjectName).config - - - - $(MSBuildProjectDirectory)\packages.config - $(PackagesProjectConfig) - - - - - $(NuGetToolsPath)\NuGet.exe - @(PackageSource) - - "$(NuGetExePath)" - mono --runtime=v4.0.30319 "$(NuGetExePath)" - - $(TargetDir.Trim('\\')) - - -RequireConsent - -NonInteractive - - "$(SolutionDir) " - "$(SolutionDir)" - - - $(NuGetCommand) install "$(PackagesConfig)" -source "$(PackageSources)" $(NonInteractiveSwitch) $(RequireConsentSwitch) -solutionDir $(PaddedSolutionDir) - $(NuGetCommand) pack "$(ProjectPath)" -Properties "Configuration=$(Configuration);Platform=$(Platform)" $(NonInteractiveSwitch) -OutputDirectory "$(PackageOutputDir)" -symbols - - - - RestorePackages; - $(BuildDependsOn); - - - - - $(BuildDependsOn); - BuildPackage; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - diff --git a/filters/ServiceConnect.Filters.GzipCompression/.vs/restore.dg b/filters/ServiceConnect.Filters.GzipCompression/.vs/restore.dg deleted file mode 100644 index 8726cbe17..000000000 --- a/filters/ServiceConnect.Filters.GzipCompression/.vs/restore.dg +++ /dev/null @@ -1 +0,0 @@ -#:C:\GIT\ServiceConnect\filters\ServiceConnect.Filters.GzipCompression\ServiceConnect.Filters.GzipCompression\ServiceConnect.Filters.GzipCompression.xproj diff --git a/filters/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression.csproj b/filters/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression.csproj deleted file mode 100644 index d3571cffc..000000000 --- a/filters/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression.csproj +++ /dev/null @@ -1,61 +0,0 @@ - - - - - Debug - AnyCPU - {4A54D375-67F9-4E64-BD91-36A4D6C4162D} - Library - Properties - ServiceConnect.Filters.GzipCompression - ServiceConnect.Filters.GzipCompression - v4.5 - 512 - - - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - ..\..\src\ServiceConnect.Interfaces\bin\Debug\ServiceConnect.Interfaces.dll - - - - - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/filters/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression.sln b/filters/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression.sln deleted file mode 100644 index 967db1892..000000000 --- a/filters/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression.sln +++ /dev/null @@ -1,29 +0,0 @@ - -Microsoft Visual Studio Solution File, Format Version 12.00 -# Visual Studio 14 -VisualStudioVersion = 14.0.25420.1 -MinimumVisualStudioVersion = 10.0.40219.1 -Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = ".nuget", ".nuget", "{3E085B4E-F45C-4419-B07B-C73293932F4C}" - ProjectSection(SolutionItems) = preProject - .nuget\NuGet.Config = .nuget\NuGet.Config - .nuget\NuGet.exe = .nuget\NuGet.exe - .nuget\NuGet.targets = .nuget\NuGet.targets - EndProjectSection -EndProject -Project("{8BB2217D-0F2D-49D1-97BC-3654ED321F3B}") = "ServiceConnect.Filters.GzipCompression", "ServiceConnect.Filters.GzipCompression\ServiceConnect.Filters.GzipCompression.xproj", "{0A3F82B5-4CF2-4BAE-9422-E3906BCC30E8}" -EndProject -Global - GlobalSection(SolutionConfigurationPlatforms) = preSolution - Debug|Any CPU = Debug|Any CPU - Release|Any CPU = Release|Any CPU - EndGlobalSection - GlobalSection(ProjectConfigurationPlatforms) = postSolution - {0A3F82B5-4CF2-4BAE-9422-E3906BCC30E8}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {0A3F82B5-4CF2-4BAE-9422-E3906BCC30E8}.Debug|Any CPU.Build.0 = Debug|Any CPU - {0A3F82B5-4CF2-4BAE-9422-E3906BCC30E8}.Release|Any CPU.ActiveCfg = Release|Any CPU - {0A3F82B5-4CF2-4BAE-9422-E3906BCC30E8}.Release|Any CPU.Build.0 = Release|Any CPU - EndGlobalSection - GlobalSection(SolutionProperties) = preSolution - HideSolutionNode = FALSE - EndGlobalSection -EndGlobal diff --git a/filters/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression/IncomingGzipCompressionFilter.cs b/filters/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression/IncomingGzipCompressionFilter.cs deleted file mode 100644 index 0ee1039e9..000000000 --- a/filters/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression/IncomingGzipCompressionFilter.cs +++ /dev/null @@ -1,26 +0,0 @@ -using System.IO; -using System.IO.Compression; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Filters.GzipCompression -{ - public class IncomingGzipCompressionFilter : IFilter - { - public bool Process(Envelope envelope) - { - using (var compressedMessageMemoryStream = new MemoryStream(envelope.Body)) - using (var messageMemoryStream = new MemoryStream()) - { - using (var gzipStream = new GZipStream(compressedMessageMemoryStream, CompressionMode.Decompress)) - { - MemoryStreamUtilities.CopyTo(gzipStream, messageMemoryStream); - } - - envelope.Body = messageMemoryStream.ToArray(); - } - return true; - } - - public IBus Bus { get; set; } - } -} \ No newline at end of file diff --git a/filters/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression/MemoryStreamUtilities.cs b/filters/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression/MemoryStreamUtilities.cs deleted file mode 100644 index 97136f973..000000000 --- a/filters/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression/MemoryStreamUtilities.cs +++ /dev/null @@ -1,19 +0,0 @@ -using System.IO; - -namespace ServiceConnect.Filters.GzipCompression -{ - public static class MemoryStreamUtilities - { - public static void CopyTo(Stream src, Stream dest) - { - var bytes = new byte[4096]; - - int cnt; - - while ((cnt = src.Read(bytes, 0, bytes.Length)) != 0) - { - dest.Write(bytes, 0, cnt); - } - } - } -} \ No newline at end of file diff --git a/filters/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression/OutgoingGzipCompressionFilter.cs b/filters/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression/OutgoingGzipCompressionFilter.cs deleted file mode 100644 index c5a362298..000000000 --- a/filters/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression/OutgoingGzipCompressionFilter.cs +++ /dev/null @@ -1,26 +0,0 @@ -using System.IO; -using System.IO.Compression; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Filters.GzipCompression -{ - public class OutgoingGzipCompressionFilter : IFilter - { - public bool Process(Envelope envelope) - { - using (var messageMemoryStream = new MemoryStream(envelope.Body)) - using (var compressedMessageMemoryStream = new MemoryStream()) - { - using (var gzipStream = new GZipStream(compressedMessageMemoryStream, CompressionMode.Compress)) - { - MemoryStreamUtilities.CopyTo(messageMemoryStream, gzipStream); - } - - envelope.Body = compressedMessageMemoryStream.ToArray(); - } - return true; - } - - public IBus Bus { get; set; } - } -} diff --git a/filters/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression/Properties/AssemblyInfo.cs b/filters/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression/Properties/AssemblyInfo.cs deleted file mode 100644 index c2d7e5765..000000000 --- a/filters/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,19 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("ServiceConnect.Filters.GzipCompression")] -[assembly: AssemblyTrademark("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("0a3f82b5-4cf2-4bae-9422-e3906bcc30e8")] diff --git a/filters/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression.nuspec b/filters/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression.nuspec deleted file mode 100644 index 785846f76..000000000 --- a/filters/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression.nuspec +++ /dev/null @@ -1,29 +0,0 @@ - - - - ServiceConnect.Filters.GzipCompression - 2.0.0-pre - ServiceConnect.Filters.GzipCompression - Jakub Pachansky,Tim Watson - Jakub Pachansky,Tim Watson - false - A set of filters that gzip-compresses each message - en-GB - https://github.com/R-Suite/ServiceConnect - Copyright 2017 ServiceConnect. All rights reserved - MessageBus filters,ServiceConnect filters, compression, idempotent,R MessageBus,message gzip,RabbitMQ MessageBus,RMessageBus,Messaging,message compression,Bus,Service - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/filters/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression.xproj b/filters/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression.xproj deleted file mode 100644 index d9927c6d4..000000000 --- a/filters/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression.xproj +++ /dev/null @@ -1,21 +0,0 @@ - - - - 14.0 - $(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion) - - - - - 0a3f82b5-4cf2-4bae-9422-e3906bcc30e8 - ServiceConnect.Filters.GzipCompression - .\obj - .\bin\ - v4.5.2 - - - - 2.0 - - - diff --git a/filters/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression/project.json b/filters/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression/project.json deleted file mode 100644 index f8db723c2..000000000 --- a/filters/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression/project.json +++ /dev/null @@ -1,16 +0,0 @@ -{ - "version": "1.0.0-*", - - "dependencies": { - "NETStandard.Library": "1.6.0", - "ServiceConnect.Interfaces": "4.0.0-pre" - }, - - "frameworks": { - "netstandard1.6": { - "imports": "dnxcore50" - }, - "net451": { - } - } -} diff --git a/filters/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression/project.lock.json b/filters/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression/project.lock.json deleted file mode 100644 index 7797e2601..000000000 --- a/filters/ServiceConnect.Filters.GzipCompression/ServiceConnect.Filters.GzipCompression/project.lock.json +++ /dev/null @@ -1,4452 +0,0 @@ -{ - "locked": false, - "version": 2, - "targets": { - ".NETFramework,Version=v4.5.1": { - "Microsoft.NETCore.Platforms/1.0.1": { - "type": "package", - "compile": { - "lib/netstandard1.0/_._": {} - }, - "runtime": { - "lib/netstandard1.0/_._": {} - } - }, - "NETStandard.Library/1.6.0": { - "type": "package", - "dependencies": { - "Microsoft.NETCore.Platforms": "1.0.1", - 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-namespace ServiceConnect.Filters.MessageDeduplication.Tests -{ - public class IncomingFilterTests - { - readonly Mock _persistor; - - public IncomingFilterTests() - { - _persistor = new Mock(); - } - - [Fact] - public void ShouldProcessNewMessageWhenRedeliveredFlagIsNotSet() - { - // Arrange - var incomingFilter = new IncomingFilter(_persistor.Object); - var envelope = new Envelope(); - envelope.Headers = new Dictionary(); - - - // Act - var result = incomingFilter.Process(envelope); - - - // Assert - Assert.True(result); - } - - [Fact] - public void ShouldProcessNewMessageWhenRedeliveredFlagIsSet() - { - // Arrange - var incomingFilter = new IncomingFilter(_persistor.Object); - Guid messageId = Guid.NewGuid(); - var envelope = new Envelope(); - envelope.Headers = new Dictionary { { "Redelivered", true }, { "MessageId", Encoding.ASCII.GetBytes(messageId.ToString()) } }; - - - // Act - var result = incomingFilter.Process(envelope); - - - // Assert - Assert.True(result); - } - - [Fact] - public void ShouldNotProcessDuplicateMessageWhenRedeliveredFlagIsSet() - { - // Arrange - Guid messageId = Guid.NewGuid(); - _persistor.Setup(i => i.GetMessageExists(messageId)).Returns(true); - var incomingFilter = new IncomingFilter(_persistor.Object); - var envelope = new Envelope(); - envelope.Headers = new Dictionary { { "Redelivered", true }, { "MessageId", Encoding.ASCII.GetBytes(messageId.ToString()) } }; - - - // Act - var result = incomingFilter.Process(envelope); - - - // Assert - Assert.False(result); - } - - [Fact] - public void ShouldRethrowAnyInternalException() - { - // Arrange - Guid messageId = Guid.NewGuid(); - _persistor.Setup(i => i.GetMessageExists(messageId)).Throws(new Exception()); - var incomingFilter = new IncomingFilter(_persistor.Object); - var envelope = new Envelope(); - envelope.Headers = new Dictionary { { "Redelivered", true }, { "MessageId", Encoding.ASCII.GetBytes(messageId.ToString()) } }; - - - // Act / Assert - Assert.Throws(() => incomingFilter.Process(envelope)); - } - } -} diff --git a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication.Tests/OutgoingFilterTests.cs b/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication.Tests/OutgoingFilterTests.cs deleted file mode 100644 index 81fba3da8..000000000 --- a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication.Tests/OutgoingFilterTests.cs +++ /dev/null @@ -1,97 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Text; -using Moq; -using ServiceConnect.Filters.MessageDeduplication.Filters; -using ServiceConnect.Filters.MessageDeduplication.Persistors; -using ServiceConnect.Interfaces; -using Xunit; - -namespace ServiceConnect.Filters.MessageDeduplication.Tests -{ - public class OutgoingFilterTests - { - private readonly Mock _persistor; - - public OutgoingFilterTests() - { - _persistor = new Mock(); - } - - [Fact] - public void ShouldPersistTheMessage() - { - // Arrange - Guid messageId = Guid.NewGuid(); - - var deduplicationSettings = DeduplicationFilterSettings.Instance; - deduplicationSettings.DisableMsgExpiry = true; - - _persistor.Setup(i => i.Insert(messageId, It.IsAny())); - - var outgoingFilter = new OutgoingFilter(_persistor.Object); - var envelope = new Envelope(); - envelope.Headers = new Dictionary(); - envelope.Headers = new Dictionary { { "MessageId", Encoding.ASCII.GetBytes(messageId.ToString()) } }; - - - // Act - var result = outgoingFilter.Process(envelope); - - - // Assert - Assert.True(result); - _persistor.VerifyAll(); - } - - [Fact] - public void ShouldSwallowPersistanceException() - { - // Arrange - Guid messageId = Guid.NewGuid(); - - var deduplicationSettings = DeduplicationFilterSettings.Instance; - deduplicationSettings.DisableMsgExpiry = true; - - _persistor.Setup(i => i.Insert(messageId, It.IsAny())).Throws(new Exception()); - - var outgoingFilter = new OutgoingFilter(_persistor.Object); - var envelope = new Envelope(); - envelope.Headers = new Dictionary(); - envelope.Headers = new Dictionary { { "MessageId", Encoding.ASCII.GetBytes(messageId.ToString()) } }; - - - // Act - var result = outgoingFilter.Process(envelope); - - - // Assert - Assert.True(result); - } - - [Fact] - public void ShouldNotSetTimerWhenUsingRedisPersistor() - { - // Arrange - Guid messageId = Guid.NewGuid(); - - var deduplicationSettings = DeduplicationFilterSettings.Instance; - deduplicationSettings.DisableMsgExpiry = false; - - IMessageDeduplicationPersistor persistor = new MessageDeduplicationPersistorRedis(); - - var outgoingFilter = new OutgoingFilter(persistor); - var envelope = new Envelope(); - envelope.Headers = new Dictionary(); - envelope.Headers = new Dictionary { { "MessageId", Encoding.ASCII.GetBytes(messageId.ToString()) } }; - - - // Act - var result = outgoingFilter.Process(envelope); - - - // Assert - Assert.Null(outgoingFilter.Timer); - } - } -} diff --git a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication.Tests/Properties/AssemblyInfo.cs b/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication.Tests/Properties/AssemblyInfo.cs deleted file mode 100644 index 89441d1c6..000000000 --- a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication.Tests/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,19 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("ServiceConnect.Filters.MessageDeduplication.Tests")] -[assembly: AssemblyTrademark("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("9d036f01-f8b6-412c-a4e1-bd6c3d290ecc")] diff --git a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication.Tests/ServiceConnect.Filters.MessageDeduplication.Tests.csproj b/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication.Tests/ServiceConnect.Filters.MessageDeduplication.Tests.csproj deleted file mode 100644 index 3e62b7048..000000000 --- a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication.Tests/ServiceConnect.Filters.MessageDeduplication.Tests.csproj +++ /dev/null @@ -1,26 +0,0 @@ - - - - netcoreapp1.0 - ServiceConnect.Filters.MessageDeduplication.Tests - ServiceConnect.Filters.MessageDeduplication.Tests - true - 1.6.0 - 1.0.4 - false - false - false - - - - - - - - - - - - - - diff --git a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication.sln b/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication.sln deleted file mode 100644 index 74ccf3bf6..000000000 --- a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication.sln +++ /dev/null @@ -1,31 +0,0 @@ - -Microsoft Visual Studio Solution File, Format Version 12.00 -# Visual Studio 15 -VisualStudioVersion = 15.0.26730.10 -MinimumVisualStudioVersion = 10.0.40219.1 -Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ServiceConnect.Filters.MessageDeduplication", "ServiceConnect.Filters.MessageDeduplication\ServiceConnect.Filters.MessageDeduplication.csproj", "{C6F0067C-7474-4B60-939E-502B244851D7}" -EndProject -Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ServiceConnect.Filters.MessageDeduplication.Tests", "ServiceConnect.Filters.MessageDeduplication.Tests\ServiceConnect.Filters.MessageDeduplication.Tests.csproj", "{9D036F01-F8B6-412C-A4E1-BD6C3D290ECC}" -EndProject -Global - GlobalSection(SolutionConfigurationPlatforms) = preSolution - Debug|Any CPU = Debug|Any CPU - Release|Any CPU = Release|Any CPU - EndGlobalSection - GlobalSection(ProjectConfigurationPlatforms) = postSolution - {C6F0067C-7474-4B60-939E-502B244851D7}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {C6F0067C-7474-4B60-939E-502B244851D7}.Debug|Any CPU.Build.0 = Debug|Any CPU - {C6F0067C-7474-4B60-939E-502B244851D7}.Release|Any CPU.ActiveCfg = Release|Any CPU - {C6F0067C-7474-4B60-939E-502B244851D7}.Release|Any CPU.Build.0 = Release|Any CPU - {9D036F01-F8B6-412C-A4E1-BD6C3D290ECC}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {9D036F01-F8B6-412C-A4E1-BD6C3D290ECC}.Debug|Any CPU.Build.0 = Debug|Any CPU - {9D036F01-F8B6-412C-A4E1-BD6C3D290ECC}.Release|Any CPU.ActiveCfg = Release|Any CPU - {9D036F01-F8B6-412C-A4E1-BD6C3D290ECC}.Release|Any CPU.Build.0 = Release|Any CPU - EndGlobalSection - GlobalSection(SolutionProperties) = preSolution - HideSolutionNode = FALSE - EndGlobalSection - GlobalSection(ExtensibilityGlobals) = postSolution - SolutionGuid = {788243A5-0EF8-44EA-9116-309946585482} - EndGlobalSection -EndGlobal diff --git a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/DeduplicationFilterSettings.cs b/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/DeduplicationFilterSettings.cs deleted file mode 100644 index 4e16652b5..000000000 --- a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/DeduplicationFilterSettings.cs +++ /dev/null @@ -1,82 +0,0 @@ -using System; - -namespace ServiceConnect.Filters.MessageDeduplication -{ - /// - /// Global settings object implemented as singleton - /// - public sealed class DeduplicationFilterSettings - { - public int MsgExpiryHours { get; set; } - - /// - /// How often to clean up expired messages from the persistance store - /// - public int MsgCleanupIntervalMinutes { get; set; } - /// - /// Redis persistance store connection string - /// - public string ConnectionStringRedis { get; set; } - - /// - /// Database index (0-15) - /// - public int DatabaseIndexRedis { get; set; } - - /// - /// MongoDb(Ssl) persistance store connection string - /// - public string ConnectionStringMongoDb { get; set; } - - /// - /// Name of the MongoDb database - /// - public string DatabaseNameMongoDb { get; set; } - - /// - /// Name fo the MongoDb collection - /// - public string CollectionNameMongoDb { get; set; } - - /// - /// Disable message expiry. - /// Processed messages in the persistance store won't get deleted. - /// - public bool DisableMsgExpiry { get; set; } - - /// - /// Allocate ourselves. - /// We have a private constructor, so no one else can. - /// - //static readonly DeduplicationFilterSettings _instance = new DeduplicationFilterSettings(); - - - private static readonly Lazy Lazy = new Lazy(() => new DeduplicationFilterSettings()); - - /// - /// Access DeduplicationFilterSettings.Instance to get the singleton object. - /// Then call methods on that instance. - /// - //public static DeduplicationFilterSettings Instance - //{ - // get { return _instance; } - //} - - public static DeduplicationFilterSettings Instance { get { return Lazy.Value; } } - - /// - /// This is a private constructor, meaning no outsiders have access. - /// - private DeduplicationFilterSettings() - { - DisableMsgExpiry = false; - MsgExpiryHours = 24; - MsgCleanupIntervalMinutes = 60; - ConnectionStringMongoDb = "mongodb://localhost"; - DatabaseNameMongoDb = "ServiceConnect-Filters-MessageDeduplication"; - CollectionNameMongoDb = "ProcessedMessages"; - ConnectionStringRedis = "localhost,abortConnect=false"; - DatabaseIndexRedis = 0; - } - } -} diff --git a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Filters/IncomingDeduplicationFilterInMemory.cs b/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Filters/IncomingDeduplicationFilterInMemory.cs deleted file mode 100644 index d3473bd55..000000000 --- a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Filters/IncomingDeduplicationFilterInMemory.cs +++ /dev/null @@ -1,17 +0,0 @@ -using ServiceConnect.Filters.MessageDeduplication.Persistors; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Filters.MessageDeduplication.Filters -{ - public class IncomingDeduplicationFilterInMemory : IFilter - { - public bool Process(Envelope envelope) - { - var incomingFilter = new IncomingFilter(new MessageDeduplicationPersistorInMemory()); - - return incomingFilter.Process(envelope); - } - - public IBus Bus { get; set; } - } -} diff --git a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Filters/IncomingDeduplicationFilterMongoDb.cs b/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Filters/IncomingDeduplicationFilterMongoDb.cs deleted file mode 100644 index 759013622..000000000 --- a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Filters/IncomingDeduplicationFilterMongoDb.cs +++ /dev/null @@ -1,22 +0,0 @@ -using ServiceConnect.Filters.MessageDeduplication.Persistors; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Filters.MessageDeduplication.Filters -{ - public class IncomingDeduplicationFilterMongoDb : IFilter - { - private static IncomingFilter _incomingFilter; - - public bool Process(Envelope envelope) - { - if (null == _incomingFilter) - { - _incomingFilter = new IncomingFilter(new MessageDeduplicationPersistorMongoDb()); - } - - return _incomingFilter.Process(envelope); - } - - public IBus Bus { get; set; } - } -} diff --git a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Filters/IncomingDeduplicationFilterMongoDbSsl.cs b/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Filters/IncomingDeduplicationFilterMongoDbSsl.cs deleted file mode 100644 index 729420579..000000000 --- a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Filters/IncomingDeduplicationFilterMongoDbSsl.cs +++ /dev/null @@ -1,22 +0,0 @@ -using ServiceConnect.Filters.MessageDeduplication.Persistors; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Filters.MessageDeduplication.Filters -{ - public class IncomingDeduplicationFilterMongoDbSsl : IFilter - { - private static IncomingFilter _incomingFilter; - - public bool Process(Envelope envelope) - { - if (null == _incomingFilter) - { - _incomingFilter = new IncomingFilter(new MessageDeduplicationPersistorMongoDbSsl()); - } - - return _incomingFilter.Process(envelope); - } - - public IBus Bus { get; set; } - } -} diff --git a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Filters/IncomingDeduplicationFilterRedis.cs b/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Filters/IncomingDeduplicationFilterRedis.cs deleted file mode 100644 index 03295dcf1..000000000 --- a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Filters/IncomingDeduplicationFilterRedis.cs +++ /dev/null @@ -1,22 +0,0 @@ -using ServiceConnect.Filters.MessageDeduplication.Persistors; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Filters.MessageDeduplication.Filters -{ - public class IncomingDeduplicationFilterRedis : IFilter - { - private static IncomingFilter _incomingFilter; - - public bool Process(Envelope envelope) - { - if (null == _incomingFilter) - { - _incomingFilter = new IncomingFilter(new MessageDeduplicationPersistorRedis()); - } - - return _incomingFilter.Process(envelope); - } - - public IBus Bus { get; set; } - } -} diff --git a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Filters/IncomingFilter.cs b/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Filters/IncomingFilter.cs deleted file mode 100644 index f753672cd..000000000 --- a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Filters/IncomingFilter.cs +++ /dev/null @@ -1,60 +0,0 @@ -using System; -using System.Text; -using Common.Logging; -using ServiceConnect.Filters.MessageDeduplication.Persistors; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Filters.MessageDeduplication.Filters -{ - /// - /// Provides uniform implementation of the (incoming filter) message deduplication - /// for all the different types of filters with various persistence mechanisms. - /// - public class IncomingFilter - { - private static readonly ILog Logger = LogManager.GetLogger(typeof(IncomingFilter)); - private readonly IMessageDeduplicationPersistor _messageDeduplicationPersistor; - - /// - /// Public ctor - /// - /// - public IncomingFilter(IMessageDeduplicationPersistor messageDeduplicationPersistor) - { - // setup persistance store - _messageDeduplicationPersistor = messageDeduplicationPersistor; - } - - public bool Process(Envelope envelope) - { - bool processMessage = true; - - // Rethrow any possible exception, message will be retried - try - { - /* - * https://www.rabbitmq.com/reliability.html - * "...if the redelivered flag is not set then it is guaranteed that the message has not been seen before..." - */ - if (envelope.Headers.ContainsKey("Redelivered") && Convert.ToBoolean(envelope.Headers["Redelivered"].ToString())) - { - // if exists in persistant storage - bool msgAlreadyProcessed = - _messageDeduplicationPersistor.GetMessageExists( - new Guid(Encoding.UTF8.GetString((byte[]) (envelope.Headers["MessageId"])))); - if (msgAlreadyProcessed) - { - processMessage = false; - } - } - } - catch (Exception ex) - { - Logger.Fatal("Error checking for duplicate messages.", ex); - throw; - } - - return processMessage; - } - } -} diff --git a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Filters/OutgoingDeduplicationFilterInMemory.cs b/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Filters/OutgoingDeduplicationFilterInMemory.cs deleted file mode 100644 index b460eb16a..000000000 --- a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Filters/OutgoingDeduplicationFilterInMemory.cs +++ /dev/null @@ -1,17 +0,0 @@ -using ServiceConnect.Filters.MessageDeduplication.Persistors; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Filters.MessageDeduplication.Filters -{ - public class OutgoingDeduplicationFilterInMemory : IFilter - { - public bool Process(Envelope envelope) - { - var outgoingFilter = new OutgoingFilter(new MessageDeduplicationPersistorInMemory()); - - return outgoingFilter.Process(envelope); - } - - public IBus Bus { get; set; } - } -} diff --git a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Filters/OutgoingDeduplicationFilterMongoDb.cs b/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Filters/OutgoingDeduplicationFilterMongoDb.cs deleted file mode 100644 index a5ab68016..000000000 --- a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Filters/OutgoingDeduplicationFilterMongoDb.cs +++ /dev/null @@ -1,22 +0,0 @@ -using ServiceConnect.Filters.MessageDeduplication.Persistors; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Filters.MessageDeduplication.Filters -{ - public class OutgoingDeduplicationFilterMongoDb : IFilter - { - private static OutgoingFilter _outgoingFilter; - - public bool Process(Envelope envelope) - { - if (null == _outgoingFilter) - { - _outgoingFilter = new OutgoingFilter(new MessageDeduplicationPersistorMongoDb()); - } - - return _outgoingFilter.Process(envelope); - } - - public IBus Bus { get; set; } - } -} diff --git a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Filters/OutgoingDeduplicationFilterMongoDbSsl.cs b/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Filters/OutgoingDeduplicationFilterMongoDbSsl.cs deleted file mode 100644 index 88e1b6b9f..000000000 --- a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Filters/OutgoingDeduplicationFilterMongoDbSsl.cs +++ /dev/null @@ -1,22 +0,0 @@ -using ServiceConnect.Filters.MessageDeduplication.Persistors; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Filters.MessageDeduplication.Filters -{ - public class OutgoingDeduplicationFilterMongoDbSsl : IFilter - { - private static OutgoingFilter _outgoingFilter; - - public bool Process(Envelope envelope) - { - if (null == _outgoingFilter) - { - _outgoingFilter = new OutgoingFilter(new MessageDeduplicationPersistorMongoDbSsl()); - } - - return _outgoingFilter.Process(envelope); - } - - public IBus Bus { get; set; } - } -} diff --git a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Filters/OutgoingDeduplicationFilterRedis.cs b/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Filters/OutgoingDeduplicationFilterRedis.cs deleted file mode 100644 index f1f0d305e..000000000 --- a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Filters/OutgoingDeduplicationFilterRedis.cs +++ /dev/null @@ -1,22 +0,0 @@ -using ServiceConnect.Filters.MessageDeduplication.Persistors; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Filters.MessageDeduplication.Filters -{ - public class OutgoingDeduplicationFilterRedis : IFilter - { - private static OutgoingFilter _outgoingFilter; - - public bool Process(Envelope envelope) - { - if (null == _outgoingFilter) - { - _outgoingFilter = new OutgoingFilter(new MessageDeduplicationPersistorRedis()); - } - - return _outgoingFilter.Process(envelope); - } - - public IBus Bus { get; set; } - } -} diff --git a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Filters/OutgoingFilter.cs b/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Filters/OutgoingFilter.cs deleted file mode 100644 index 666287936..000000000 --- a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Filters/OutgoingFilter.cs +++ /dev/null @@ -1,82 +0,0 @@ -using System; -using System.Text; -using Common.Logging; -using ServiceConnect.Filters.MessageDeduplication.Persistors; -using ServiceConnect.Interfaces; -using Timer = System.Threading.Timer; - -namespace ServiceConnect.Filters.MessageDeduplication.Filters -{ - /// - /// Provides uniform implementation of the (outgoing filter) message deduplication - /// for all the different types of filters with various persistence mechanisms. - /// - public class OutgoingFilter - { - private static readonly ILog Logger = LogManager.GetLogger(typeof(OutgoingFilter)); - private readonly IMessageDeduplicationPersistor _messageDeduplicationPersistor; - private static Timer _timer; - private readonly DeduplicationFilterSettings _settings; - private static readonly object Padlock = new object(); - - public Timer Timer { get { return _timer;} } - - /// - /// Public ctor - /// - /// - public OutgoingFilter(IMessageDeduplicationPersistor messageDeduplicationPersistor) - { - // get instance of the global settings object - _settings = DeduplicationFilterSettings.Instance; - - // setup persistance store - if (_messageDeduplicationPersistor == null) - { - _messageDeduplicationPersistor = messageDeduplicationPersistor; - } - - // setup timer for cleaning up expired messages - lock (Padlock) - { - // note: no need to timer with Redis persistor - if (_timer == null && !_settings.DisableMsgExpiry && messageDeduplicationPersistor.GetType() != typeof(MessageDeduplicationPersistorRedis)) - { - _timer = new Timer(Callback, null, 0, _settings.MsgCleanupIntervalMinutes * 60 * 1000); - } - } - } - - /// - /// Executes on every specified time interval and removes the expired message ids from the relevant persistance store. - /// - /// - private void Callback(object state) - { - try - { - _messageDeduplicationPersistor.RemoveExpiredMessages(DateTime.UtcNow); - } - catch (Exception ex) - { - Logger.Error("Error removing expired messages.", ex); - } - } - - public bool Process(Envelope envelope) - { - try - { - _messageDeduplicationPersistor.Insert( - new Guid(Encoding.UTF8.GetString((byte[]) envelope.Headers["MessageId"])), - DateTime.UtcNow.AddHours(_settings.MsgExpiryHours)); - } - catch (Exception ex) - { - Logger.Warn("Error processing outgoing deduplication filter ", ex); - } - - return true; - } - } -} diff --git a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Persistors/IMessageDeduplicationPersistor.cs b/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Persistors/IMessageDeduplicationPersistor.cs deleted file mode 100644 index 9cba76c34..000000000 --- a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Persistors/IMessageDeduplicationPersistor.cs +++ /dev/null @@ -1,30 +0,0 @@ -using System; - -namespace ServiceConnect.Filters.MessageDeduplication.Persistors -{ - public interface IMessageDeduplicationPersistor - { - /// - /// Returns true if the message id exists in the relevant persistant storage. - /// => the message has been previously processed. - /// - /// - /// - bool GetMessageExists(Guid messageId); - - /// - /// Inserts a proccessed message into the relevant persistant storage. - /// This happens immediately after the message has been processed. - /// - /// - /// - void Insert(Guid messageId, DateTime messagExpiry); - - /// - /// Removes all the expired message ids from the relevant persistant storage. - /// This prevents the storage size to grow indefinitely. - /// - /// - void RemoveExpiredMessages(DateTime messagExpiry); - } -} \ No newline at end of file diff --git a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Persistors/MessageDeduplicationPersistorInMemory.cs b/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Persistors/MessageDeduplicationPersistorInMemory.cs deleted file mode 100644 index 86fe58fa1..000000000 --- a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Persistors/MessageDeduplicationPersistorInMemory.cs +++ /dev/null @@ -1,43 +0,0 @@ -using System; -using System.Collections.Concurrent; -using System.Collections.Generic; - -namespace ServiceConnect.Filters.MessageDeduplication.Persistors -{ - /// - /// InMemory implementation of the persistor. - /// Keeps processed message ids in ObjectCache - /// - public class MessageDeduplicationPersistorInMemory : IMessageDeduplicationPersistor - { - private static readonly ConcurrentDictionary Cache = new ConcurrentDictionary(); - - public bool GetMessageExists(Guid messageId) - { - return Cache.ContainsKey(messageId.ToString()); - } - - public void Insert(Guid messageId, DateTime messageExpiry) - { - Cache.TryAdd(messageId.ToString(), new CacheItem { MessageExpiry = messageExpiry }); - } - - public void RemoveExpiredMessages(DateTime messageExpiry) - { - foreach (KeyValuePair cacheItem in Cache) - { - if (cacheItem.Value.MessageExpiry < messageExpiry) - { - CacheItem ci; - Cache.TryRemove(cacheItem.Key, out ci); - } - } - } - } - - internal sealed class CacheItem - { - public object Value { get; set; } - public DateTime MessageExpiry { get; set; } - } -} diff --git a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Persistors/MessageDeduplicationPersistorMongoDb.cs b/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Persistors/MessageDeduplicationPersistorMongoDb.cs deleted file mode 100644 index 4554066f9..000000000 --- a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Persistors/MessageDeduplicationPersistorMongoDb.cs +++ /dev/null @@ -1,57 +0,0 @@ -using System; -using System.Reflection; -using Common.Logging; -using MongoDB.Driver; - -namespace ServiceConnect.Filters.MessageDeduplication.Persistors -{ - public class MessageDeduplicationPersistorMongoDb : IMessageDeduplicationPersistor - { - private static readonly ILog Logger = LogManager.GetLogger(typeof(MessageDeduplicationPersistorMongoDb)); - private readonly IMongoCollection _collection; - - public MessageDeduplicationPersistorMongoDb() - { - var settings = DeduplicationFilterSettings.Instance; - var mongoClient = new MongoClient(settings.ConnectionStringMongoDb); - var mongoDatabase = mongoClient.GetDatabase(settings.DatabaseNameMongoDb); - _collection = mongoDatabase.GetCollection(settings.CollectionNameMongoDb); - _collection.Indexes.CreateOneAsync(Builders.IndexKeys.Ascending(_ => _.Id)); - _collection.Indexes.CreateOneAsync(Builders.IndexKeys.Ascending(_ => _.ExpiryDateTime)); - } - - public bool GetMessageExists(Guid messageId) - { - IAsyncCursor result = _collection.FindAsync(i=>i.Id == messageId).Result; - return result.Any(); - } - - public void Insert(Guid messageId, DateTime messagExpiry) - { - try - { - _collection.InsertOne(new ProcessedMessage - { - Id = messageId, - ExpiryDateTime = messagExpiry - }); - } - catch (Exception ex) - { - Logger.Fatal("Error inserting into ProcessedMessage collection", ex); - } - } - - public void RemoveExpiredMessages(DateTime messagExpiry) - { - try - { - _collection.DeleteMany(i => i.ExpiryDateTime < messagExpiry); - } - catch (Exception ex) - { - Logger.Fatal("Error cleaning up expired ProcessedMessages", ex); - } - } - } -} \ No newline at end of file diff --git a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Persistors/MessageDeduplicationPersistorMongoDbSsl.cs b/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Persistors/MessageDeduplicationPersistorMongoDbSsl.cs deleted file mode 100644 index 9a8221491..000000000 --- a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Persistors/MessageDeduplicationPersistorMongoDbSsl.cs +++ /dev/null @@ -1,169 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using System.Security.Cryptography.X509Certificates; -using Common.Logging; -using MongoDB.Driver; - -namespace ServiceConnect.Filters.MessageDeduplication.Persistors -{ - public class MessageDeduplicationPersistorMongoDbSsl : IMessageDeduplicationPersistor - { - private static readonly ILog Logger = LogManager.GetLogger(typeof(MessageDeduplicationPersistorMongoDbSsl)); - private readonly IMongoCollection _collection; - - public MessageDeduplicationPersistorMongoDbSsl() - { - var filterSettings = DeduplicationFilterSettings.Instance; - var connectionParts = filterSettings.ConnectionStringMongoDb.Split(','); - string nodes = string.Empty; - string username = string.Empty; - string password = string.Empty; - string certPath = string.Empty; - string userdb = string.Empty; - string cert = string.Empty; - string certPassword = string.Empty; - - foreach (string connectionPart in connectionParts) - { - var nameValue = connectionPart.Split('='); - switch (nameValue[0].ToLower()) - { - case "nodes": - nodes = nameValue[1]; - break; - case "userdb": - userdb = nameValue[1]; - break; - case "username": - username = nameValue[1]; - break; - case "password": - password = nameValue[1]; - break; - case "certpath": - certPath = nameValue[1]; - break; - case "cert": - cert = nameValue[1]; - break; - case "certpassword": - certPassword = nameValue[1]; - break; - } - } - - var mongoNodes = nodes.Split(';'); - - List certs = null; - if (!string.IsNullOrEmpty(certPath)) - { - if (string.IsNullOrEmpty(certPassword)) - { - certs = new List - { - new X509Certificate2(certPath) - }; - } - else - { - certs = new List - { - new X509Certificate2(certPath, certPassword) - }; - } - - } - - if (!string.IsNullOrEmpty(cert)) - { - if (string.IsNullOrEmpty(certPassword)) - { - certs = new List - { - new X509Certificate2(Convert.FromBase64String(cert)) - }; - } - else - { - certs = new List - { - new X509Certificate2(Convert.FromBase64String(cert), certPassword) - }; - } - } - - List credentials = null; - if (!string.IsNullOrEmpty(username)) - { - string db = "admin"; - - if (!string.IsNullOrEmpty(userdb)) - { - db = userdb; - } - - credentials = new List - { - MongoCredential.CreateCredential(db, username, password), - }; - } - - var settings = new MongoClientSettings - { - UseSsl = true, - Credentials = credentials, - ConnectionMode = ConnectionMode.Automatic, - Servers = mongoNodes.Select(x => new MongoServerAddress(x)), - SslSettings = new SslSettings - { - ClientCertificates = certs, - ClientCertificateSelectionCallback = (sender, host, certificates, certificate, issuers) => certificates[0], - CheckCertificateRevocation = false - } - }; - - - - var mongoClient = new MongoClient(settings); - var mongoDatabase = mongoClient.GetDatabase(filterSettings.DatabaseNameMongoDb); - _collection = mongoDatabase.GetCollection(filterSettings.CollectionNameMongoDb); - _collection.Indexes.CreateOneAsync(Builders.IndexKeys.Ascending(_ => _.Id)); - _collection.Indexes.CreateOneAsync(Builders.IndexKeys.Ascending(_ => _.ExpiryDateTime)); - } - - public bool GetMessageExists(Guid messageId) - { - IAsyncCursor result = _collection.FindAsync(i => i.Id == messageId).Result; - return result.Any(); - } - - public void Insert(Guid messageId, DateTime messageExpiry) - { - try - { - _collection.InsertOne(new ProcessedMessage - { - Id = messageId, - ExpiryDateTime = messageExpiry - }); - } - catch (Exception ex) - { - Logger.Fatal("Error inserting into ProcessedMessage collection", ex); - } - } - - public void RemoveExpiredMessages(DateTime messageExpiry) - { - try - { - _collection.DeleteMany(i => i.ExpiryDateTime < messageExpiry); - } - catch (Exception ex) - { - Logger.Fatal("Error cleaning up expired ProcessedMessages", ex); - } - } - } -} diff --git a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Persistors/MessageDeduplicationPersistorRedis.cs b/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Persistors/MessageDeduplicationPersistorRedis.cs deleted file mode 100644 index d9bd571c4..000000000 --- a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Persistors/MessageDeduplicationPersistorRedis.cs +++ /dev/null @@ -1,53 +0,0 @@ -using System; -using Common.Logging; -using StackExchange.Redis; - -namespace ServiceConnect.Filters.MessageDeduplication.Persistors -{ - public class RedisConnectionFactory - { - private static readonly Lazy Connection; - private static readonly DeduplicationFilterSettings Settings = DeduplicationFilterSettings.Instance; - - static RedisConnectionFactory() - { - var connectionString = Settings.ConnectionStringRedis; - var options = ConfigurationOptions.Parse(connectionString); - - Connection = new Lazy(() => ConnectionMultiplexer.Connect(options)); - } - - public static ConnectionMultiplexer GetConnection() => Connection.Value; - - } - - public class MessageDeduplicationPersistorRedis : IMessageDeduplicationPersistor - { - private static readonly ILog Logger = LogManager.GetLogger(typeof(MessageDeduplicationPersistorMongoDb)); - private static readonly DeduplicationFilterSettings Settings = DeduplicationFilterSettings.Instance; - - public bool GetMessageExists(Guid messageId) - { - var con = RedisConnectionFactory.GetConnection(); - var db = con.GetDatabase(Settings.DatabaseIndexRedis); - - return db.KeyExists(messageId.ToString()); - } - - public void Insert(Guid messageId, DateTime messagExpiry) - { - var con = RedisConnectionFactory.GetConnection(); - var db = con.GetDatabase(Settings.DatabaseIndexRedis); - - db.StringSet(messageId.ToString(), string.Empty); - - if (!Settings.DisableMsgExpiry) - db.KeyExpire(messageId.ToString(), messagExpiry); - } - - public void RemoveExpiredMessages(DateTime messagExpiry) - { - // Do nothing, Redis takes case of message expiry. - } - } -} diff --git a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/ProcessedMessage.cs b/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/ProcessedMessage.cs deleted file mode 100644 index ea2a28c38..000000000 --- a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/ProcessedMessage.cs +++ /dev/null @@ -1,10 +0,0 @@ -using System; - -namespace ServiceConnect.Filters.MessageDeduplication -{ - public class ProcessedMessage - { - public Guid Id { get; set; } - public DateTime ExpiryDateTime { get; set; } - } -} \ No newline at end of file diff --git a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Properties/AssemblyInfo.cs b/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Properties/AssemblyInfo.cs deleted file mode 100644 index ebac2242f..000000000 --- a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,19 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("ServiceConnect.Filters.MessageDeduplication")] -[assembly: AssemblyTrademark("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("c6f0067c-7474-4b60-939e-502b244851d7")] diff --git a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication.csproj b/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication.csproj deleted file mode 100644 index 5360b3622..000000000 --- a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication.csproj +++ /dev/null @@ -1,28 +0,0 @@ - - - - netstandard1.6;net451 - ServiceConnect.Filters.MessageDeduplication - ServiceConnect.Filters.MessageDeduplication - 1.6.1 - $(PackageTargetFallback);dnxcore50 - false - false - false - - - - - - - - - - - - - - - - - diff --git a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication.nuspec b/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication.nuspec deleted file mode 100644 index 48487c49d..000000000 --- a/filters/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication/ServiceConnect.Filters.MessageDeduplication.nuspec +++ /dev/null @@ -1,37 +0,0 @@ - - - - ServiceConnect.Filters.MessageDeduplication - 2.0.6 - ServiceConnect.Filters.MessageDeduplication - Jakub Pachansky,Tim Watson - Jakub Pachansky,Tim Watson - false - A set of filters that ensures each message is proccesed only once - en-GB - https://github.com/R-Suite/ServiceConnect - Copyright 2017 ServiceConnect. All rights reserved - MessageBus filters,ServiceConnect filters, deduplication, idempotent,R MessageBus,message idempotence,RabbitMQ MessageBus,RMessageBus,Messaging,message deduplication,Bus,Service - - - - - - - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/images/DeadLetter.gif b/images/DeadLetter.gif deleted file mode 100644 index 3f92c1de3..000000000 Binary files a/images/DeadLetter.gif and /dev/null differ diff --git a/images/PointToPoint.gif b/images/PointToPoint.gif deleted file mode 100644 index 179260862..000000000 Binary files a/images/PointToPoint.gif and /dev/null differ diff --git a/images/ProcessManager.gif b/images/ProcessManager.gif deleted file mode 100644 index 22c8501f1..000000000 Binary files a/images/ProcessManager.gif and /dev/null differ diff --git a/images/PublishSubscribe.gif b/images/PublishSubscribe.gif deleted file mode 100644 index 329f774f7..000000000 Binary files a/images/PublishSubscribe.gif and /dev/null differ diff --git a/images/RequestReply.gif b/images/RequestReply.gif deleted file mode 100644 index 37a4a75fe..000000000 Binary files a/images/RequestReply.gif and /dev/null differ diff --git a/images/RoutingTableSimple.gif b/images/RoutingTableSimple.gif deleted file mode 100644 index c4005da2a..000000000 Binary files a/images/RoutingTableSimple.gif and /dev/null differ diff --git a/logo/icon.png b/logo/icon.png deleted file mode 100644 index 768ae706e..000000000 Binary files a/logo/icon.png and /dev/null differ diff --git a/logo/icon_mini.png b/logo/icon_mini.png deleted file mode 100644 index b5fa0a657..000000000 Binary files a/logo/icon_mini.png and /dev/null differ diff --git a/logo/icon_small.png b/logo/icon_small.png deleted file mode 100644 index 9b88ebc5a..000000000 Binary files a/logo/icon_small.png and /dev/null differ diff --git a/logo/image.bmp b/logo/image.bmp deleted file mode 100644 index 914521497..000000000 Binary files a/logo/image.bmp and /dev/null differ diff --git a/logo/logo.bmp b/logo/logo.bmp deleted file mode 100644 index a00e321f9..000000000 Binary files a/logo/logo.bmp and /dev/null differ diff --git a/logo/logo.png b/logo/logo.png deleted file mode 100644 index 378cd87b8..000000000 Binary files a/logo/logo.png and /dev/null differ diff --git a/logo/text.bmp b/logo/text.bmp deleted file mode 100644 index b258d5557..000000000 Binary files a/logo/text.bmp and /dev/null differ diff --git a/logos/icon.png b/logos/icon.png new file mode 100644 index 000000000..151b5854b Binary files /dev/null and b/logos/icon.png differ diff --git a/logos/logo1.png b/logos/logo1.png new file mode 100644 index 000000000..54fdbbf62 Binary files /dev/null and b/logos/logo1.png differ diff --git a/logos/logo2.png b/logos/logo2.png new file mode 100644 index 000000000..cb8d50de5 Binary files /dev/null and b/logos/logo2.png differ diff --git a/logos/logo3.png b/logos/logo3.png new file mode 100644 index 000000000..3dcc6b6b6 Binary files /dev/null and b/logos/logo3.png differ diff --git a/logos/logo4.png b/logos/logo4.png new file mode 100644 index 000000000..855e81a05 Binary files /dev/null and b/logos/logo4.png differ diff --git a/samples/.vs/NetCoreRequestReply/v15/Server/sqlite3/db.lock b/samples/.vs/NetCoreRequestReply/v15/Server/sqlite3/db.lock deleted file mode 100644 index e69de29bb..000000000 diff --git a/samples/.vs/NetCoreRequestReply/v15/Server/sqlite3/storage.ide b/samples/.vs/NetCoreRequestReply/v15/Server/sqlite3/storage.ide deleted file mode 100644 index 36daa012b..000000000 Binary files a/samples/.vs/NetCoreRequestReply/v15/Server/sqlite3/storage.ide and /dev/null differ diff --git a/samples/Aggregator/.vs/Aggregator/v15/sqlite3/storage.ide b/samples/Aggregator/.vs/Aggregator/v15/sqlite3/storage.ide deleted file mode 100644 index 719ce8591..000000000 Binary files a/samples/Aggregator/.vs/Aggregator/v15/sqlite3/storage.ide and /dev/null differ diff --git a/samples/Aggregator/Aggregator.Consumer/Aggregator.Consumer.csproj b/samples/Aggregator/Aggregator.Consumer/Aggregator.Consumer.csproj deleted file mode 100644 index fb0942dc9..000000000 --- a/samples/Aggregator/Aggregator.Consumer/Aggregator.Consumer.csproj +++ /dev/null @@ -1,115 +0,0 @@ - - - - - Debug - AnyCPU - {599553B7-529F-4532-A42C-856A046F2C5F} - Exe - Properties - Aggregator.Consumer - Aggregator.Consumer - v4.5.1 - 512 - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - ..\..\..\src\ServiceConnect.Persistance.MongoDb\bin\Debug\net451\MongoDB.Bson.dll - - - ..\..\..\src\ServiceConnect.Persistance.MongoDb\bin\Debug\net451\MongoDB.Driver.dll - - - ..\..\..\src\ServiceConnect.Persistance.MongoDb\bin\Debug\net451\MongoDB.Driver.Core.dll - - - ..\..\..\src\ServiceConnect.Persistance.MongoDb\bin\Debug\net451\MongoDB.Driver.Legacy.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect.Persistance.MongoDb\bin\Debug\net451\ServiceConnect.Persistance.MongoDb.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - - {68ac3033-4fad-4fd3-8219-024d2cf8be55} - Aggregator.Messages - - - - - \ No newline at end of file diff --git a/samples/Aggregator/Aggregator.Consumer/AggregatorHandler.cs b/samples/Aggregator/Aggregator.Consumer/AggregatorHandler.cs deleted file mode 100644 index 58d3d905f..000000000 --- a/samples/Aggregator/Aggregator.Consumer/AggregatorHandler.cs +++ /dev/null @@ -1,24 +0,0 @@ -using System; -using System.Collections.Generic; -using Aggregator.Messages; -using ServiceConnect.Interfaces; - -namespace Aggregator.Consumer -{ - public class TestMessageHandler : Aggregator - { - public override int BatchSize() - { - return 100; - } - public override TimeSpan Timeout() - { - return new TimeSpan(0, 0, 0, 2); - } - - public override void Execute(IList message) - { - Console.WriteLine("***** Received batch of messages ({0}) ******", message.Count); - } - } -} \ No newline at end of file diff --git a/samples/Aggregator/Aggregator.Consumer/App.config b/samples/Aggregator/Aggregator.Consumer/App.config deleted file mode 100644 index d0feca6f7..000000000 --- a/samples/Aggregator/Aggregator.Consumer/App.config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - diff --git a/samples/Aggregator/Aggregator.Consumer/Program.cs b/samples/Aggregator/Aggregator.Consumer/Program.cs deleted file mode 100644 index 7abd39d7c..000000000 --- a/samples/Aggregator/Aggregator.Consumer/Program.cs +++ /dev/null @@ -1,28 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using System.Text; -using System.Threading.Tasks; -using ServiceConnect; -using ServiceConnect.Persistance.MongoDb; - -namespace Aggregator.Consumer -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Consumer ***********"); - Bus.Initialize(x => - { - x.SetQueueName("Aggregator.Consumer"); - x.PurgeQueuesOnStart(); - x.SetAuditingEnabled(true); - x.SetHost("localhost"); - x.SetNumberOfClients(10); - }); - - Console.ReadLine(); - } - } -} diff --git a/samples/Aggregator/Aggregator.Consumer/Properties/AssemblyInfo.cs b/samples/Aggregator/Aggregator.Consumer/Properties/AssemblyInfo.cs deleted file mode 100644 index 5b3364905..000000000 --- a/samples/Aggregator/Aggregator.Consumer/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("Aggregator.Consumer")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("Aggregator.Consumer")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2015")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("db7825b1-6952-4805-9215-94a1ba026f00")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/Aggregator/Aggregator.Messages/Aggregator.Messages.csproj b/samples/Aggregator/Aggregator.Messages/Aggregator.Messages.csproj deleted file mode 100644 index 2be13495f..000000000 --- a/samples/Aggregator/Aggregator.Messages/Aggregator.Messages.csproj +++ /dev/null @@ -1,57 +0,0 @@ - - - - - Debug - AnyCPU - {68AC3033-4FAD-4FD3-8219-024D2CF8BE55} - Library - Properties - Aggregator.Messages - Aggregator.Messages - v4.5.1 - 512 - - - - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/samples/Aggregator/Aggregator.Messages/Properties/AssemblyInfo.cs b/samples/Aggregator/Aggregator.Messages/Properties/AssemblyInfo.cs deleted file mode 100644 index a6035ae0f..000000000 --- a/samples/Aggregator/Aggregator.Messages/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("Aggregator.Messages")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("Aggregator.Messages")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2015")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("6305071f-172e-49c0-88e8-ce93bee31eb6")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/Aggregator/Aggregator.Messages/TestMessage.cs b/samples/Aggregator/Aggregator.Messages/TestMessage.cs deleted file mode 100644 index b395cc12c..000000000 --- a/samples/Aggregator/Aggregator.Messages/TestMessage.cs +++ /dev/null @@ -1,13 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace Aggregator.Messages -{ - public class TestMessage : Message - { - public TestMessage(Guid correlationId) : base(correlationId) - { - } - public int Num { get; set; } - } -} diff --git a/samples/Aggregator/Aggregator.sln b/samples/Aggregator/Aggregator.sln deleted file mode 100644 index 03b2491c8..000000000 --- a/samples/Aggregator/Aggregator.sln +++ /dev/null @@ -1,34 +0,0 @@ - -Microsoft Visual Studio Solution File, Format Version 12.00 -# Visual Studio 2013 -VisualStudioVersion = 12.0.30723.0 -MinimumVisualStudioVersion = 10.0.40219.1 -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Aggregator", "Aggregator\Aggregator.csproj", "{7CF64F4D-E0EC-45A1-8B9E-858209D77993}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Aggregator.Consumer", "Aggregator.Consumer\Aggregator.Consumer.csproj", "{599553B7-529F-4532-A42C-856A046F2C5F}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Aggregator.Messages", "Aggregator.Messages\Aggregator.Messages.csproj", "{68AC3033-4FAD-4FD3-8219-024D2CF8BE55}" -EndProject -Global - GlobalSection(SolutionConfigurationPlatforms) = preSolution - Debug|Any CPU = Debug|Any CPU - Release|Any CPU = Release|Any CPU - EndGlobalSection - GlobalSection(ProjectConfigurationPlatforms) = postSolution - {7CF64F4D-E0EC-45A1-8B9E-858209D77993}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {7CF64F4D-E0EC-45A1-8B9E-858209D77993}.Debug|Any CPU.Build.0 = Debug|Any CPU - {7CF64F4D-E0EC-45A1-8B9E-858209D77993}.Release|Any CPU.ActiveCfg = Release|Any CPU - {7CF64F4D-E0EC-45A1-8B9E-858209D77993}.Release|Any CPU.Build.0 = Release|Any CPU - {599553B7-529F-4532-A42C-856A046F2C5F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {599553B7-529F-4532-A42C-856A046F2C5F}.Debug|Any CPU.Build.0 = Debug|Any CPU - {599553B7-529F-4532-A42C-856A046F2C5F}.Release|Any CPU.ActiveCfg = Release|Any CPU - {599553B7-529F-4532-A42C-856A046F2C5F}.Release|Any CPU.Build.0 = Release|Any CPU - {68AC3033-4FAD-4FD3-8219-024D2CF8BE55}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {68AC3033-4FAD-4FD3-8219-024D2CF8BE55}.Debug|Any CPU.Build.0 = Debug|Any CPU - {68AC3033-4FAD-4FD3-8219-024D2CF8BE55}.Release|Any CPU.ActiveCfg = Release|Any CPU - {68AC3033-4FAD-4FD3-8219-024D2CF8BE55}.Release|Any CPU.Build.0 = Release|Any CPU - EndGlobalSection - GlobalSection(SolutionProperties) = preSolution - HideSolutionNode = FALSE - EndGlobalSection -EndGlobal diff --git a/samples/Aggregator/Aggregator/Aggregator.csproj b/samples/Aggregator/Aggregator/Aggregator.csproj deleted file mode 100644 index 6c8ed5513..000000000 --- a/samples/Aggregator/Aggregator/Aggregator.csproj +++ /dev/null @@ -1,99 +0,0 @@ - - - - - Debug - AnyCPU - {7CF64F4D-E0EC-45A1-8B9E-858209D77993} - Exe - Properties - Aggregator - Aggregator - v4.5.1 - 512 - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - {68ac3033-4fad-4fd3-8219-024d2cf8be55} - Aggregator.Messages - - - - - \ No newline at end of file diff --git a/samples/Aggregator/Aggregator/App.config b/samples/Aggregator/Aggregator/App.config deleted file mode 100644 index d0feca6f7..000000000 --- a/samples/Aggregator/Aggregator/App.config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - diff --git a/samples/Aggregator/Aggregator/Program.cs b/samples/Aggregator/Aggregator/Program.cs deleted file mode 100644 index 201c0bde3..000000000 --- a/samples/Aggregator/Aggregator/Program.cs +++ /dev/null @@ -1,38 +0,0 @@ -using System; -using System.Threading; -using Aggregator.Messages; -using ServiceConnect; - -namespace Aggregator -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Publisher ***********"); - var bus = Bus.Initialize(x => - { - x.SetQueueName("Aggregator.Publisher"); - x.PurgeQueuesOnStart(); - x.SetAuditingEnabled(true); - x.SetHost("localhost"); - }); - - Console.WriteLine("Press enter"); - Console.ReadLine(); - - for (int i = 0; i < 1000; i++) - { - bus.Send("Aggregator.Consumer", new TestMessage(Guid.NewGuid()) - { - Num = i + 1 - }); - Thread.Sleep(10); - } - - Console.WriteLine("*********** Complete ***********"); - - Console.ReadLine(); - } - } -} diff --git a/samples/Aggregator/Aggregator/Properties/AssemblyInfo.cs b/samples/Aggregator/Aggregator/Properties/AssemblyInfo.cs deleted file mode 100644 index 258f80fe1..000000000 --- a/samples/Aggregator/Aggregator/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("Aggregator")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("Aggregator")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2015")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("750707ee-7a0c-45cf-be41-d5c0f242a337")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/AsyncMessageHandlers/.vs/AsyncMessageHandlers/v15/sqlite3/storage.ide b/samples/AsyncMessageHandlers/.vs/AsyncMessageHandlers/v15/sqlite3/storage.ide deleted file mode 100644 index 0269b448a..000000000 Binary files a/samples/AsyncMessageHandlers/.vs/AsyncMessageHandlers/v15/sqlite3/storage.ide and /dev/null differ diff --git a/samples/AsyncMessageHandlers/AsyncMessageHandlers.Consumers/App.config b/samples/AsyncMessageHandlers/AsyncMessageHandlers.Consumers/App.config deleted file mode 100644 index 731f6de6c..000000000 --- a/samples/AsyncMessageHandlers/AsyncMessageHandlers.Consumers/App.config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - \ No newline at end of file diff --git a/samples/AsyncMessageHandlers/AsyncMessageHandlers.Consumers/AsyncMessageHandler1.cs b/samples/AsyncMessageHandlers/AsyncMessageHandlers.Consumers/AsyncMessageHandler1.cs deleted file mode 100644 index 10bccf73c..000000000 --- a/samples/AsyncMessageHandlers/AsyncMessageHandlers.Consumers/AsyncMessageHandler1.cs +++ /dev/null @@ -1,20 +0,0 @@ -using System; -using System.Threading.Tasks; -using AsyncMessagehandlers.Messages; -using ServiceConnect.Interfaces; - -namespace AsyncMessageHandlers.Consumers -{ - public class AsyncMessageHandler1 : IAsyncMessageHandler - { - public async Task Execute(AsyncMessage message) - { - await Task.Run(() => - { - Console.WriteLine("Executing AsyncMessageHandler1"); - }); - } - - public IConsumeContext Context { get; set; } - } -} \ No newline at end of file diff --git a/samples/AsyncMessageHandlers/AsyncMessageHandlers.Consumers/AsyncMessageHandler2.cs b/samples/AsyncMessageHandlers/AsyncMessageHandlers.Consumers/AsyncMessageHandler2.cs deleted file mode 100644 index 01e14f2b2..000000000 --- a/samples/AsyncMessageHandlers/AsyncMessageHandlers.Consumers/AsyncMessageHandler2.cs +++ /dev/null @@ -1,20 +0,0 @@ -using System; -using System.Threading.Tasks; -using AsyncMessagehandlers.Messages; -using ServiceConnect.Interfaces; - -namespace AsyncMessageHandlers.Consumers -{ - public class AsyncMessageHandler2 : IAsyncMessageHandler - { - public async Task Execute(AsyncMessage message) - { - await Task.Run(() => - { - Console.WriteLine("Executing AsyncMessageHandler2"); - }); - } - - public IConsumeContext Context { get; set; } - } -} \ No newline at end of file diff --git a/samples/AsyncMessageHandlers/AsyncMessageHandlers.Consumers/AsyncMessageHandlers.Consumers.csproj b/samples/AsyncMessageHandlers/AsyncMessageHandlers.Consumers/AsyncMessageHandlers.Consumers.csproj deleted file mode 100644 index d2ba6b5a8..000000000 --- a/samples/AsyncMessageHandlers/AsyncMessageHandlers.Consumers/AsyncMessageHandlers.Consumers.csproj +++ /dev/null @@ -1,113 +0,0 @@ - - - - - Debug - AnyCPU - {D8FAC12F-D8D4-4768-AFE5-3811518D6A85} - Exe - AsyncMessageHandlers.Consumers - AsyncMessageHandlers.Consumers - v4.6.1 - 512 - true - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Microsoft.Diagnostics.Tracing.EventSource.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\System.Data.Common.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\System.Data.SqlClient.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\System.Reactive.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\System.Reactive.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\System.Reactive.Linq.dll - - - - - - - - - - - - - - - - - - - - - {74372413-bd53-4789-95f9-53abefe91536} - AsyncMessageHandlers.Messages - - - - \ No newline at end of file diff --git a/samples/AsyncMessageHandlers/AsyncMessageHandlers.Consumers/Program.cs b/samples/AsyncMessageHandlers/AsyncMessageHandlers.Consumers/Program.cs deleted file mode 100644 index a700cb8ff..000000000 --- a/samples/AsyncMessageHandlers/AsyncMessageHandlers.Consumers/Program.cs +++ /dev/null @@ -1,29 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using System.Text; -using System.Threading.Tasks; -using ServiceConnect; - -namespace AsyncMessageHandlers.Consumers -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Consumer ***********"); - - var bus = Bus.Initialize(config => - { - config.SetQueueName("AsyncTest.Consumer"); - config.SetNumberOfClients(10); - config.SetHost("localhost"); - }); - bus.StartConsuming(); - - Console.ReadLine(); - - bus.Dispose(); - } - } -} diff --git a/samples/AsyncMessageHandlers/AsyncMessageHandlers.Consumers/Properties/AssemblyInfo.cs b/samples/AsyncMessageHandlers/AsyncMessageHandlers.Consumers/Properties/AssemblyInfo.cs deleted file mode 100644 index 4a38704a3..000000000 --- a/samples/AsyncMessageHandlers/AsyncMessageHandlers.Consumers/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("AsyncMessageHandlers.Consumers")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("AsyncMessageHandlers.Consumers")] -[assembly: AssemblyCopyright("Copyright © Ruffer PLC 2017")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("d8fac12f-d8d4-4768-afe5-3811518d6a85")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/AsyncMessageHandlers/AsyncMessageHandlers.Consumers/SyncMessageHandler.cs b/samples/AsyncMessageHandlers/AsyncMessageHandlers.Consumers/SyncMessageHandler.cs deleted file mode 100644 index 804741f0e..000000000 --- a/samples/AsyncMessageHandlers/AsyncMessageHandlers.Consumers/SyncMessageHandler.cs +++ /dev/null @@ -1,16 +0,0 @@ -using System; -using AsyncMessagehandlers.Messages; -using ServiceConnect.Interfaces; - -namespace AsyncMessageHandlers.Consumers -{ - public class SyncMessageHandler : IMessageHandler - { - public void Execute(AsyncMessage message) - { - Console.WriteLine("Executing SyncMessageHandler"); - } - - public IConsumeContext Context { get; set; } - } -} \ No newline at end of file diff --git a/samples/AsyncMessageHandlers/AsyncMessageHandlers.Messages/App.config b/samples/AsyncMessageHandlers/AsyncMessageHandlers.Messages/App.config deleted file mode 100644 index 731f6de6c..000000000 --- a/samples/AsyncMessageHandlers/AsyncMessageHandlers.Messages/App.config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - \ No newline at end of file diff --git a/samples/AsyncMessageHandlers/AsyncMessageHandlers.Messages/AsyncMessage.cs b/samples/AsyncMessageHandlers/AsyncMessageHandlers.Messages/AsyncMessage.cs deleted file mode 100644 index ff2228eb2..000000000 --- a/samples/AsyncMessageHandlers/AsyncMessageHandlers.Messages/AsyncMessage.cs +++ /dev/null @@ -1,13 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace AsyncMessagehandlers.Messages -{ - public class AsyncMessage : Message - { - public AsyncMessage(Guid correlationId) : base(correlationId) - { - } - - } -} diff --git a/samples/AsyncMessageHandlers/AsyncMessageHandlers.Messages/AsyncMessageHandlers.Messages.csproj b/samples/AsyncMessageHandlers/AsyncMessageHandlers.Messages/AsyncMessageHandlers.Messages.csproj deleted file mode 100644 index 29f2b4c74..000000000 --- a/samples/AsyncMessageHandlers/AsyncMessageHandlers.Messages/AsyncMessageHandlers.Messages.csproj +++ /dev/null @@ -1,56 +0,0 @@ - - - - - Debug - AnyCPU - {74372413-BD53-4789-95F9-53ABEFE91536} - Exe - AsyncMessageHandlers.Messages - AsyncMessageHandlers.Messages - v4.6.1 - 512 - true - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/samples/AsyncMessageHandlers/AsyncMessageHandlers.Messages/Program.cs b/samples/AsyncMessageHandlers/AsyncMessageHandlers.Messages/Program.cs deleted file mode 100644 index 3b0f069bd..000000000 --- a/samples/AsyncMessageHandlers/AsyncMessageHandlers.Messages/Program.cs +++ /dev/null @@ -1,15 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using System.Text; -using System.Threading.Tasks; - -namespace AsyncMessageHandlers.Messages -{ - class Program - { - static void Main(string[] args) - { - } - } -} diff --git a/samples/AsyncMessageHandlers/AsyncMessageHandlers.Messages/Properties/AssemblyInfo.cs b/samples/AsyncMessageHandlers/AsyncMessageHandlers.Messages/Properties/AssemblyInfo.cs deleted file mode 100644 index 661af5c49..000000000 --- a/samples/AsyncMessageHandlers/AsyncMessageHandlers.Messages/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("AsyncMessageHandlers.Messages")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("AsyncMessageHandlers.Messages")] -[assembly: AssemblyCopyright("Copyright © Ruffer PLC 2017")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("74372413-bd53-4789-95f9-53abefe91536")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/AsyncMessageHandlers/AsyncMessageHandlers.Producer/App.config b/samples/AsyncMessageHandlers/AsyncMessageHandlers.Producer/App.config deleted file mode 100644 index 731f6de6c..000000000 --- a/samples/AsyncMessageHandlers/AsyncMessageHandlers.Producer/App.config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - \ No newline at end of file diff --git a/samples/AsyncMessageHandlers/AsyncMessageHandlers.Producer/AsyncMessageHandlers.Producer.csproj b/samples/AsyncMessageHandlers/AsyncMessageHandlers.Producer/AsyncMessageHandlers.Producer.csproj deleted file mode 100644 index 4a4031051..000000000 --- a/samples/AsyncMessageHandlers/AsyncMessageHandlers.Producer/AsyncMessageHandlers.Producer.csproj +++ /dev/null @@ -1,110 +0,0 @@ - - - - - Debug - AnyCPU - {5CEBEE25-0619-4C1E-8192-668EF0D11518} - Exe - AsyncMessageHandlers.Producer - AsyncMessageHandlers.Producer - v4.6.1 - 512 - true - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Microsoft.Diagnostics.Tracing.EventSource.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\System.Data.Common.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\System.Data.SqlClient.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\System.Reactive.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\System.Reactive.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\System.Reactive.Linq.dll - - - - - - - - - - - - - - - - - - {74372413-bd53-4789-95f9-53abefe91536} - AsyncMessageHandlers.Messages - - - - \ No newline at end of file diff --git a/samples/AsyncMessageHandlers/AsyncMessageHandlers.Producer/Program.cs b/samples/AsyncMessageHandlers/AsyncMessageHandlers.Producer/Program.cs deleted file mode 100644 index 9e383611f..000000000 --- a/samples/AsyncMessageHandlers/AsyncMessageHandlers.Producer/Program.cs +++ /dev/null @@ -1,42 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using System.Text; -using System.Threading.Tasks; -using AsyncMessagehandlers.Messages; -using ServiceConnect; - -namespace AsyncMessageHandlers.Producer -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Producer ***********"); - var bus = Bus.Initialize(config => - { - config.AddQueueMapping(typeof(AsyncMessage), "AsyncTest.Consumer"); - config.SetHost("localhost"); - config.AutoStartConsuming = false; - }); - - while (true) - { - Console.WriteLine("Press enter to send message"); - Console.ReadLine(); - - Console.WriteLine("Start: {0}", DateTime.Now); - - for (int i = 0; i < 300; i++) - { - var id = Guid.NewGuid(); - bus.Send(new AsyncMessage(id)); - Console.ReadLine(); - } - - Console.WriteLine("Sent messages"); - Console.WriteLine(""); - } - } - } -} diff --git a/samples/AsyncMessageHandlers/AsyncMessageHandlers.Producer/Properties/AssemblyInfo.cs b/samples/AsyncMessageHandlers/AsyncMessageHandlers.Producer/Properties/AssemblyInfo.cs deleted file mode 100644 index b9ee4f9c7..000000000 --- a/samples/AsyncMessageHandlers/AsyncMessageHandlers.Producer/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("AsyncMessageHandlers.Producer")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("AsyncMessageHandlers.Producer")] -[assembly: AssemblyCopyright("Copyright © Ruffer PLC 2017")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("5cebee25-0619-4c1e-8192-668ef0d11518")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/AsyncMessageHandlers/AsyncMessageHandlers.sln b/samples/AsyncMessageHandlers/AsyncMessageHandlers.sln deleted file mode 100644 index efecb5768..000000000 --- a/samples/AsyncMessageHandlers/AsyncMessageHandlers.sln +++ /dev/null @@ -1,37 +0,0 @@ - -Microsoft Visual Studio Solution File, Format Version 12.00 -# Visual Studio 15 -VisualStudioVersion = 15.0.26730.12 -MinimumVisualStudioVersion = 10.0.40219.1 -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AsyncMessageHandlers.Consumers", "AsyncMessageHandlers.Consumers\AsyncMessageHandlers.Consumers.csproj", "{D8FAC12F-D8D4-4768-AFE5-3811518D6A85}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AsyncMessageHandlers.Producer", "AsyncMessageHandlers.Producer\AsyncMessageHandlers.Producer.csproj", "{5CEBEE25-0619-4C1E-8192-668EF0D11518}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AsyncMessageHandlers.Messages", "AsyncMessageHandlers.Messages\AsyncMessageHandlers.Messages.csproj", "{74372413-BD53-4789-95F9-53ABEFE91536}" -EndProject -Global - GlobalSection(SolutionConfigurationPlatforms) = preSolution - Debug|Any CPU = Debug|Any CPU - Release|Any CPU = Release|Any CPU - EndGlobalSection - GlobalSection(ProjectConfigurationPlatforms) = postSolution - {D8FAC12F-D8D4-4768-AFE5-3811518D6A85}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {D8FAC12F-D8D4-4768-AFE5-3811518D6A85}.Debug|Any CPU.Build.0 = Debug|Any CPU - {D8FAC12F-D8D4-4768-AFE5-3811518D6A85}.Release|Any CPU.ActiveCfg = Release|Any CPU - {D8FAC12F-D8D4-4768-AFE5-3811518D6A85}.Release|Any CPU.Build.0 = Release|Any CPU - {5CEBEE25-0619-4C1E-8192-668EF0D11518}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {5CEBEE25-0619-4C1E-8192-668EF0D11518}.Debug|Any CPU.Build.0 = Debug|Any CPU - {5CEBEE25-0619-4C1E-8192-668EF0D11518}.Release|Any CPU.ActiveCfg = Release|Any CPU - {5CEBEE25-0619-4C1E-8192-668EF0D11518}.Release|Any CPU.Build.0 = Release|Any CPU - {74372413-BD53-4789-95F9-53ABEFE91536}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {74372413-BD53-4789-95F9-53ABEFE91536}.Debug|Any CPU.Build.0 = Debug|Any CPU - {74372413-BD53-4789-95F9-53ABEFE91536}.Release|Any CPU.ActiveCfg = Release|Any CPU - {74372413-BD53-4789-95F9-53ABEFE91536}.Release|Any CPU.Build.0 = Release|Any CPU - EndGlobalSection - GlobalSection(SolutionProperties) = preSolution - HideSolutionNode = FALSE - EndGlobalSection - GlobalSection(ExtensibilityGlobals) = postSolution - SolutionGuid = {1396A724-3B1B-48BA-A230-E04BA0570C60} - EndGlobalSection -EndGlobal diff --git a/samples/AsyncProcessManager/.vs/AsyncProcessManager/v15/sqlite3/storage.ide b/samples/AsyncProcessManager/.vs/AsyncProcessManager/v15/sqlite3/storage.ide deleted file mode 100644 index 235179f02..000000000 Binary files a/samples/AsyncProcessManager/.vs/AsyncProcessManager/v15/sqlite3/storage.ide and /dev/null differ diff --git a/samples/AsyncProcessManager/AsyncProcessManager.Consumer/App.config b/samples/AsyncProcessManager/AsyncProcessManager.Consumer/App.config deleted file mode 100644 index 731f6de6c..000000000 --- a/samples/AsyncProcessManager/AsyncProcessManager.Consumer/App.config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - \ No newline at end of file diff --git a/samples/AsyncProcessManager/AsyncProcessManager.Consumer/AsyncProcessManager.Consumer.csproj b/samples/AsyncProcessManager/AsyncProcessManager.Consumer/AsyncProcessManager.Consumer.csproj deleted file mode 100644 index cbdcccbde..000000000 --- a/samples/AsyncProcessManager/AsyncProcessManager.Consumer/AsyncProcessManager.Consumer.csproj +++ /dev/null @@ -1,111 +0,0 @@ - - - - - Debug - AnyCPU - {1274B124-006A-4965-88E8-F15B4ABBC8E5} - Exe - AsyncProcessManager.Consumer - AsyncProcessManager.Consumer - v4.6.1 - 512 - true - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Microsoft.Diagnostics.Tracing.EventSource.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\System.Data.Common.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\System.Data.SqlClient.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\System.Reactive.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\System.Reactive.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\System.Reactive.Linq.dll - - - - - - - - - - - - - - - - - - - {acc9f96d-398d-4b6e-a589-009be1b0bef2} - AsyncProcessManager.Messages - - - - \ No newline at end of file diff --git a/samples/AsyncProcessManager/AsyncProcessManager.Consumer/MessageHandler.cs b/samples/AsyncProcessManager/AsyncProcessManager.Consumer/MessageHandler.cs deleted file mode 100644 index d8193fa84..000000000 --- a/samples/AsyncProcessManager/AsyncProcessManager.Consumer/MessageHandler.cs +++ /dev/null @@ -1,28 +0,0 @@ -using System; -using System.Threading.Tasks; -using AsyncProcessManager.Messages; -using ServiceConnect.Interfaces; - -namespace AsyncProcessManager.Consumer -{ - public class MessageHandler : IAsyncMessageHandler - { - private readonly IBus _bus; - - public MessageHandler(IBus bus) - { - _bus = bus; - } - - public async Task Execute(MessageRequest message) - { - await Task.Run(() => - { - Console.WriteLine("Received message."); - _bus.Send("AsyncProcessManager.ProcessManager", new MessageResponse(message.CorrelationId)); - }); - } - - public IConsumeContext Context { get; set; } - } -} \ No newline at end of file diff --git a/samples/AsyncProcessManager/AsyncProcessManager.Consumer/Program.cs b/samples/AsyncProcessManager/AsyncProcessManager.Consumer/Program.cs deleted file mode 100644 index d15d86fdc..000000000 --- a/samples/AsyncProcessManager/AsyncProcessManager.Consumer/Program.cs +++ /dev/null @@ -1,29 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using System.Text; -using System.Threading.Tasks; -using ServiceConnect; - -namespace AsyncProcessManager.Consumer -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Consumer ***********"); - - var bus = Bus.Initialize(config => - { - config.SetQueueName("AsyncProcessManager.Consumer"); - config.SetNumberOfClients(10); - config.SetHost("localhost"); - }); - bus.StartConsuming(); - - Console.ReadLine(); - - bus.Dispose(); - } - } -} diff --git a/samples/AsyncProcessManager/AsyncProcessManager.Consumer/Properties/AssemblyInfo.cs b/samples/AsyncProcessManager/AsyncProcessManager.Consumer/Properties/AssemblyInfo.cs deleted file mode 100644 index 58a2a3f99..000000000 --- a/samples/AsyncProcessManager/AsyncProcessManager.Consumer/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("AsyncProcessManager.Consumer")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("AsyncProcessManager.Consumer")] -[assembly: AssemblyCopyright("Copyright © Ruffer PLC 2017")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("1274b124-006a-4965-88e8-f15b4abbc8e5")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/AsyncProcessManager/AsyncProcessManager.Messages/AsyncProcessManager.Messages.csproj b/samples/AsyncProcessManager/AsyncProcessManager.Messages/AsyncProcessManager.Messages.csproj deleted file mode 100644 index cd9439e7e..000000000 --- a/samples/AsyncProcessManager/AsyncProcessManager.Messages/AsyncProcessManager.Messages.csproj +++ /dev/null @@ -1,53 +0,0 @@ - - - - - Debug - AnyCPU - {ACC9F96D-398D-4B6E-A589-009BE1B0BEF2} - Library - Properties - AsyncProcessManager.Messages - AsyncProcessManager.Messages - v4.6.1 - 512 - - - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/samples/AsyncProcessManager/AsyncProcessManager.Messages/CompleteMessage.cs b/samples/AsyncProcessManager/AsyncProcessManager.Messages/CompleteMessage.cs deleted file mode 100644 index bc6bc108e..000000000 --- a/samples/AsyncProcessManager/AsyncProcessManager.Messages/CompleteMessage.cs +++ /dev/null @@ -1,12 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace AsyncProcessManager.Messages -{ - public class CompleteMessage : Message - { - public CompleteMessage(Guid correlationId) : base(correlationId) - { - } - } -} \ No newline at end of file diff --git a/samples/AsyncProcessManager/AsyncProcessManager.Messages/MessageRequest.cs b/samples/AsyncProcessManager/AsyncProcessManager.Messages/MessageRequest.cs deleted file mode 100644 index 584e4678f..000000000 --- a/samples/AsyncProcessManager/AsyncProcessManager.Messages/MessageRequest.cs +++ /dev/null @@ -1,12 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace AsyncProcessManager.Messages -{ - public class MessageRequest : Message - { - public MessageRequest(Guid correlationId) : base(correlationId) - { - } - } -} \ No newline at end of file diff --git a/samples/AsyncProcessManager/AsyncProcessManager.Messages/MessageResponse.cs b/samples/AsyncProcessManager/AsyncProcessManager.Messages/MessageResponse.cs deleted file mode 100644 index e0d4c04c1..000000000 --- a/samples/AsyncProcessManager/AsyncProcessManager.Messages/MessageResponse.cs +++ /dev/null @@ -1,12 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace AsyncProcessManager.Messages -{ - public class MessageResponse : Message - { - public MessageResponse(Guid correlationId) : base(correlationId) - { - } - } -} \ No newline at end of file diff --git a/samples/AsyncProcessManager/AsyncProcessManager.Messages/Properties/AssemblyInfo.cs b/samples/AsyncProcessManager/AsyncProcessManager.Messages/Properties/AssemblyInfo.cs deleted file mode 100644 index 324c7a2cb..000000000 --- a/samples/AsyncProcessManager/AsyncProcessManager.Messages/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("AsyncProcessManager.Messages")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("AsyncProcessManager.Messages")] -[assembly: AssemblyCopyright("Copyright © Ruffer PLC 2017")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("acc9f96d-398d-4b6e-a589-009be1b0bef2")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/AsyncProcessManager/AsyncProcessManager.Messages/StartMessage.cs b/samples/AsyncProcessManager/AsyncProcessManager.Messages/StartMessage.cs deleted file mode 100644 index eebefa53b..000000000 --- a/samples/AsyncProcessManager/AsyncProcessManager.Messages/StartMessage.cs +++ /dev/null @@ -1,16 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using System.Text; -using System.Threading.Tasks; -using ServiceConnect.Interfaces; - -namespace AsyncProcessManager.Messages -{ - public class StartMessage : Message - { - public StartMessage(Guid correlationId) : base(correlationId) - { - } - } -} diff --git a/samples/AsyncProcessManager/AsyncProcessManager.ProcessManager/App.config b/samples/AsyncProcessManager/AsyncProcessManager.ProcessManager/App.config deleted file mode 100644 index 731f6de6c..000000000 --- a/samples/AsyncProcessManager/AsyncProcessManager.ProcessManager/App.config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - \ No newline at end of file diff --git a/samples/AsyncProcessManager/AsyncProcessManager.ProcessManager/AsyncProcessManager.ProcessManager.csproj b/samples/AsyncProcessManager/AsyncProcessManager.ProcessManager/AsyncProcessManager.ProcessManager.csproj deleted file mode 100644 index 780a2782b..000000000 --- a/samples/AsyncProcessManager/AsyncProcessManager.ProcessManager/AsyncProcessManager.ProcessManager.csproj +++ /dev/null @@ -1,112 +0,0 @@ - - - - - Debug - AnyCPU - {735CCEC6-1656-4B86-A207-B5E4BD84995B} - Exe - AsyncProcessManager.ProcessManager - AsyncProcessManager.ProcessManager - v4.6.1 - 512 - true - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Microsoft.Diagnostics.Tracing.EventSource.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\System.Data.Common.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\System.Data.SqlClient.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\System.Reactive.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\System.Reactive.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\System.Reactive.Linq.dll - - - - - - - - - - - - - - - - - - - - {acc9f96d-398d-4b6e-a589-009be1b0bef2} - AsyncProcessManager.Messages - - - - \ No newline at end of file diff --git a/samples/AsyncProcessManager/AsyncProcessManager.ProcessManager/ProcessManager.cs b/samples/AsyncProcessManager/AsyncProcessManager.ProcessManager/ProcessManager.cs deleted file mode 100644 index 819417bd9..000000000 --- a/samples/AsyncProcessManager/AsyncProcessManager.ProcessManager/ProcessManager.cs +++ /dev/null @@ -1,38 +0,0 @@ -using System; -using System.Threading.Tasks; -using AsyncProcessManager.Messages; -using ServiceConnect.Core; -using ServiceConnect.Interfaces; - -namespace AsyncProcessManager.ProcessManager -{ - public class ProcessManagerHandler : ProcessManager, IStartAsyncProcessManager, IAsyncMessageHandler - { - private readonly IBus _bus; - - public ProcessManagerHandler(IBus bus) - { - _bus = bus; - } - - public async Task Execute(StartMessage message) - { - await Task.Run(() => - { - Data.CorrelationId = message.CorrelationId; - Console.WriteLine("Received start."); - _bus.Send("AsyncProcessManager.Consumer", new MessageRequest(message.CorrelationId)); - }); - } - - public async Task Execute(MessageResponse message) - { - await Task.Run(() => - { - Console.WriteLine("Received message response."); - _bus.Send("AsyncProcessManager.Producer", new CompleteMessage(message.CorrelationId)); - MarkAsComplete(); - }); - } - } -} \ No newline at end of file diff --git a/samples/AsyncProcessManager/AsyncProcessManager.ProcessManager/ProcessManagerData.cs b/samples/AsyncProcessManager/AsyncProcessManager.ProcessManager/ProcessManagerData.cs deleted file mode 100644 index 2b9d537eb..000000000 --- a/samples/AsyncProcessManager/AsyncProcessManager.ProcessManager/ProcessManagerData.cs +++ /dev/null @@ -1,10 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace AsyncProcessManager.ProcessManager -{ - public class ProcessManagerData : IProcessManagerData - { - public Guid CorrelationId { get; set; } - } -} \ No newline at end of file diff --git a/samples/AsyncProcessManager/AsyncProcessManager.ProcessManager/Program.cs b/samples/AsyncProcessManager/AsyncProcessManager.ProcessManager/Program.cs deleted file mode 100644 index 244a2e680..000000000 --- a/samples/AsyncProcessManager/AsyncProcessManager.ProcessManager/Program.cs +++ /dev/null @@ -1,31 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using System.Text; -using System.Threading.Tasks; -using ServiceConnect; -using ServiceConnect.Persistance.InMemory; - -namespace AsyncProcessManager.ProcessManager -{ - class Program - { - static void Main(string[] args) - { - - Console.WriteLine("*********** ProcessManager ***********"); - - var bus = Bus.Initialize(config => - { - config.SetQueueName("AsyncProcessManager.ProcessManager"); - config.SetHost("localhost"); - config.SetProcessManagerFinder(); - }); - bus.StartConsuming(); - - Console.ReadLine(); - - bus.Dispose(); - } - } -} diff --git a/samples/AsyncProcessManager/AsyncProcessManager.ProcessManager/Properties/AssemblyInfo.cs b/samples/AsyncProcessManager/AsyncProcessManager.ProcessManager/Properties/AssemblyInfo.cs deleted file mode 100644 index 097691f47..000000000 --- a/samples/AsyncProcessManager/AsyncProcessManager.ProcessManager/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("AsyncProcessManager.ProcessManager")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("AsyncProcessManager.ProcessManager")] -[assembly: AssemblyCopyright("Copyright © Ruffer PLC 2017")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("735ccec6-1656-4b86-a207-b5e4bd84995b")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/AsyncProcessManager/AsyncProcessManager.Producer/App.config b/samples/AsyncProcessManager/AsyncProcessManager.Producer/App.config deleted file mode 100644 index 731f6de6c..000000000 --- a/samples/AsyncProcessManager/AsyncProcessManager.Producer/App.config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - \ No newline at end of file diff --git a/samples/AsyncProcessManager/AsyncProcessManager.Producer/AsyncProcessManager.Producer.csproj b/samples/AsyncProcessManager/AsyncProcessManager.Producer/AsyncProcessManager.Producer.csproj deleted file mode 100644 index dcda03bc6..000000000 --- a/samples/AsyncProcessManager/AsyncProcessManager.Producer/AsyncProcessManager.Producer.csproj +++ /dev/null @@ -1,111 +0,0 @@ - - - - - Debug - AnyCPU - {A8703803-47EF-4324-A3B2-744640B311EE} - Exe - AsyncProcessManager.Producer - AsyncProcessManager.Producer - v4.6.1 - 512 - true - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Microsoft.Diagnostics.Tracing.EventSource.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\System.Data.Common.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\System.Data.SqlClient.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\System.Reactive.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\System.Reactive.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\System.Reactive.Linq.dll - - - - - - - - - - - - - - - - - - - {acc9f96d-398d-4b6e-a589-009be1b0bef2} - AsyncProcessManager.Messages - - - - \ No newline at end of file diff --git a/samples/AsyncProcessManager/AsyncProcessManager.Producer/CompleteMessageHandler.cs b/samples/AsyncProcessManager/AsyncProcessManager.Producer/CompleteMessageHandler.cs deleted file mode 100644 index 3833c29a2..000000000 --- a/samples/AsyncProcessManager/AsyncProcessManager.Producer/CompleteMessageHandler.cs +++ /dev/null @@ -1,20 +0,0 @@ -using System; -using System.Threading.Tasks; -using AsyncProcessManager.Messages; -using ServiceConnect.Interfaces; - -namespace AsyncProcessManager.Producer -{ - public class CompleteMessageHandler : IAsyncMessageHandler - { - public async Task Execute(CompleteMessage message) - { - await Task.Run(() => - { - Console.WriteLine("Received process manager complete message"); - }); - } - - public IConsumeContext Context { get; set; } - } -} \ No newline at end of file diff --git a/samples/AsyncProcessManager/AsyncProcessManager.Producer/Program.cs b/samples/AsyncProcessManager/AsyncProcessManager.Producer/Program.cs deleted file mode 100644 index fdffe76ca..000000000 --- a/samples/AsyncProcessManager/AsyncProcessManager.Producer/Program.cs +++ /dev/null @@ -1,32 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using System.Text; -using System.Threading.Tasks; -using AsyncProcessManager.Messages; -using ServiceConnect; - -namespace AsyncProcessManager.Producer -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Producer ***********"); - var bus = Bus.Initialize(config => - { - config.AddQueueMapping(typeof(StartMessage), "AsyncProcessManager.ProcessManager"); - config.SetHost("localhost"); - }); - - Console.WriteLine("Press enter to send message"); - while (true) - { - Console.ReadLine(); - var id = Guid.NewGuid(); - bus.Send(new StartMessage(id)); - Console.WriteLine("Message sent"); - } - } - } -} diff --git a/samples/AsyncProcessManager/AsyncProcessManager.Producer/Properties/AssemblyInfo.cs b/samples/AsyncProcessManager/AsyncProcessManager.Producer/Properties/AssemblyInfo.cs deleted file mode 100644 index a47ca69aa..000000000 --- a/samples/AsyncProcessManager/AsyncProcessManager.Producer/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("AsyncProcessManager.Producer")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("AsyncProcessManager.Producer")] -[assembly: AssemblyCopyright("Copyright © Ruffer PLC 2017")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("a8703803-47ef-4324-a3b2-744640b311ee")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/AsyncProcessManager/AsyncProcessManager.sln b/samples/AsyncProcessManager/AsyncProcessManager.sln deleted file mode 100644 index 68f0870ab..000000000 --- a/samples/AsyncProcessManager/AsyncProcessManager.sln +++ /dev/null @@ -1,43 +0,0 @@ - -Microsoft Visual Studio Solution File, Format Version 12.00 -# Visual Studio 15 -VisualStudioVersion = 15.0.26730.12 -MinimumVisualStudioVersion = 10.0.40219.1 -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AsyncProcessManager.Producer", "AsyncProcessManager.Producer\AsyncProcessManager.Producer.csproj", "{A8703803-47EF-4324-A3B2-744640B311EE}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AsyncProcessManager.Consumer", "AsyncProcessManager.Consumer\AsyncProcessManager.Consumer.csproj", "{1274B124-006A-4965-88E8-F15B4ABBC8E5}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AsyncProcessManager.ProcessManager", "AsyncProcessManager.ProcessManager\AsyncProcessManager.ProcessManager.csproj", "{735CCEC6-1656-4B86-A207-B5E4BD84995B}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AsyncProcessManager.Messages", "AsyncProcessManager.Messages\AsyncProcessManager.Messages.csproj", "{ACC9F96D-398D-4B6E-A589-009BE1B0BEF2}" -EndProject -Global - GlobalSection(SolutionConfigurationPlatforms) = preSolution - Debug|Any CPU = Debug|Any CPU - Release|Any CPU = Release|Any CPU - EndGlobalSection - GlobalSection(ProjectConfigurationPlatforms) = postSolution - {A8703803-47EF-4324-A3B2-744640B311EE}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {A8703803-47EF-4324-A3B2-744640B311EE}.Debug|Any CPU.Build.0 = Debug|Any CPU - {A8703803-47EF-4324-A3B2-744640B311EE}.Release|Any CPU.ActiveCfg = Release|Any CPU - {A8703803-47EF-4324-A3B2-744640B311EE}.Release|Any CPU.Build.0 = Release|Any CPU - {1274B124-006A-4965-88E8-F15B4ABBC8E5}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {1274B124-006A-4965-88E8-F15B4ABBC8E5}.Debug|Any CPU.Build.0 = Debug|Any CPU - {1274B124-006A-4965-88E8-F15B4ABBC8E5}.Release|Any CPU.ActiveCfg = Release|Any CPU - {1274B124-006A-4965-88E8-F15B4ABBC8E5}.Release|Any CPU.Build.0 = Release|Any CPU - {735CCEC6-1656-4B86-A207-B5E4BD84995B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {735CCEC6-1656-4B86-A207-B5E4BD84995B}.Debug|Any CPU.Build.0 = Debug|Any CPU - {735CCEC6-1656-4B86-A207-B5E4BD84995B}.Release|Any CPU.ActiveCfg = Release|Any CPU - {735CCEC6-1656-4B86-A207-B5E4BD84995B}.Release|Any CPU.Build.0 = Release|Any CPU - {ACC9F96D-398D-4B6E-A589-009BE1B0BEF2}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {ACC9F96D-398D-4B6E-A589-009BE1B0BEF2}.Debug|Any CPU.Build.0 = Debug|Any CPU - {ACC9F96D-398D-4B6E-A589-009BE1B0BEF2}.Release|Any CPU.ActiveCfg = Release|Any CPU - {ACC9F96D-398D-4B6E-A589-009BE1B0BEF2}.Release|Any CPU.Build.0 = Release|Any CPU - EndGlobalSection - GlobalSection(SolutionProperties) = preSolution - HideSolutionNode = FALSE - EndGlobalSection - GlobalSection(ExtensibilityGlobals) = postSolution - SolutionGuid = {511653BD-529A-405D-887D-D0356CE59A08} - EndGlobalSection -EndGlobal diff --git a/samples/BusDisposeTest/BusDisposeTest.Messages/BusDisposeTest.Messages.csproj b/samples/BusDisposeTest/BusDisposeTest.Messages/BusDisposeTest.Messages.csproj deleted file mode 100644 index 32ab90e52..000000000 --- a/samples/BusDisposeTest/BusDisposeTest.Messages/BusDisposeTest.Messages.csproj +++ /dev/null @@ -1,59 +0,0 @@ - - - - - Debug - AnyCPU - {898E10EE-7130-400D-9367-D8F1BE8B2572} - Library - Properties - BusDisposeTest.Messages - BusDisposeTest.Messages - v4.5.1 - 512 - - - - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/samples/BusDisposeTest/BusDisposeTest.Messages/Properties/AssemblyInfo.cs b/samples/BusDisposeTest/BusDisposeTest.Messages/Properties/AssemblyInfo.cs deleted file mode 100644 index 10b71d564..000000000 --- a/samples/BusDisposeTest/BusDisposeTest.Messages/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("BusDisposeTest.Messages")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("BusDisposeTest.Messages")] -[assembly: AssemblyCopyright("Copyright © Ruffer PLC 2015")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("4e292476-b1d7-4517-be83-100bba72c875")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/BusDisposeTest/BusDisposeTest.Messages/TestMsg.cs b/samples/BusDisposeTest/BusDisposeTest.Messages/TestMsg.cs deleted file mode 100644 index b57e7c8ba..000000000 --- a/samples/BusDisposeTest/BusDisposeTest.Messages/TestMsg.cs +++ /dev/null @@ -1,12 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace BusDisposeTest.Messages -{ - public class TestMsg : Message - { - public TestMsg(Guid correlationId) : base(correlationId) - { - } - } -} diff --git a/samples/BusDisposeTest/BusDisposeTest.sln b/samples/BusDisposeTest/BusDisposeTest.sln deleted file mode 100644 index bdfd4d8ac..000000000 --- a/samples/BusDisposeTest/BusDisposeTest.sln +++ /dev/null @@ -1,28 +0,0 @@ - -Microsoft Visual Studio Solution File, Format Version 12.00 -# Visual Studio 2013 -VisualStudioVersion = 12.0.30723.0 -MinimumVisualStudioVersion = 10.0.40219.1 -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "BusDisposeTest", "BusDisposeTest\BusDisposeTest.csproj", "{1529DBD2-7CA1-4DD0-B056-EAE6512F76FF}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "BusDisposeTest.Messages", "BusDisposeTest.Messages\BusDisposeTest.Messages.csproj", "{898E10EE-7130-400D-9367-D8F1BE8B2572}" -EndProject -Global - GlobalSection(SolutionConfigurationPlatforms) = preSolution - Debug|Any CPU = Debug|Any CPU - Release|Any CPU = Release|Any CPU - EndGlobalSection - GlobalSection(ProjectConfigurationPlatforms) = postSolution - {1529DBD2-7CA1-4DD0-B056-EAE6512F76FF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {1529DBD2-7CA1-4DD0-B056-EAE6512F76FF}.Debug|Any CPU.Build.0 = Debug|Any CPU - {1529DBD2-7CA1-4DD0-B056-EAE6512F76FF}.Release|Any CPU.ActiveCfg = Release|Any CPU - {1529DBD2-7CA1-4DD0-B056-EAE6512F76FF}.Release|Any CPU.Build.0 = Release|Any CPU - {898E10EE-7130-400D-9367-D8F1BE8B2572}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {898E10EE-7130-400D-9367-D8F1BE8B2572}.Debug|Any CPU.Build.0 = Debug|Any CPU - {898E10EE-7130-400D-9367-D8F1BE8B2572}.Release|Any CPU.ActiveCfg = Release|Any CPU - {898E10EE-7130-400D-9367-D8F1BE8B2572}.Release|Any CPU.Build.0 = Release|Any CPU - EndGlobalSection - GlobalSection(SolutionProperties) = preSolution - HideSolutionNode = FALSE - EndGlobalSection -EndGlobal diff --git a/samples/BusDisposeTest/BusDisposeTest/App.config b/samples/BusDisposeTest/BusDisposeTest/App.config deleted file mode 100644 index 24fa58f0a..000000000 --- a/samples/BusDisposeTest/BusDisposeTest/App.config +++ /dev/null @@ -1,20 +0,0 @@ - - - - - - - - - - - - - - - - - - - - diff --git a/samples/BusDisposeTest/BusDisposeTest/BusDisposeTest.csproj b/samples/BusDisposeTest/BusDisposeTest/BusDisposeTest.csproj deleted file mode 100644 index 627357974..000000000 --- a/samples/BusDisposeTest/BusDisposeTest/BusDisposeTest.csproj +++ /dev/null @@ -1,147 +0,0 @@ - - - - - Debug - AnyCPU - {1529DBD2-7CA1-4DD0-B056-EAE6512F76FF} - Exe - Properties - BusDisposeTest - BusDisposeTest - v4.5.1 - 512 - publish\ - true - Disk - false - Foreground - 7 - Days - false - false - true - 0 - 1.0.0.%2a - false - false - true - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - Designer - - - - - - False - Microsoft .NET Framework 4.5 %28x86 and x64%29 - true - - - False - .NET Framework 3.5 SP1 Client Profile - false - - - False - .NET Framework 3.5 SP1 - false - - - - - {898E10EE-7130-400D-9367-D8F1BE8B2572} - BusDisposeTest.Messages - - - - - \ No newline at end of file diff --git a/samples/BusDisposeTest/BusDisposeTest/Program.cs b/samples/BusDisposeTest/BusDisposeTest/Program.cs deleted file mode 100644 index 6acc7d301..000000000 --- a/samples/BusDisposeTest/BusDisposeTest/Program.cs +++ /dev/null @@ -1,89 +0,0 @@ -using System; -using System.Diagnostics; -using System.Reflection; -using System.ServiceProcess; -using BusDisposeTest.Messages; -using Common.Logging; -using ServiceConnect; -using ServiceConnect.Container.Default; -using ServiceConnect.Interfaces; - -namespace BusDisposeTest -{ - /// - /// R.MessageBus Endpoint Host that can run as Console App or - /// can be installed as Windows Services - /// - public class Program - { - private static readonly ILog Logger = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType); - private static IBus _bus; - - #region Nested classes to support running as service - - private const string ServiceName = "MyService"; // modify to use your own Service Name - - public class Service : ServiceBase - { - public Service() - { - ServiceName = ServiceName; - } - - protected override void OnStart(string[] args) - { - Program.Start(args); - } - - protected override void OnStop() - { - Program.Stop(); - } - } - - #endregion - - static void Main(string[] args) - { - if (!Environment.UserInteractive) - // running as service - using (var service = new Service()) - ServiceBase.Run(service); - else - { - // running as console app - Start(args); - - Console.WriteLine(); - Console.WriteLine("Press any key to stop..."); - Console.ReadKey(true); - - Stop(); - } - } - - private static void Start(string[] args) - { - - // Start Bus - _bus = Bus.Initialize(config => - { - //config.SetNumberOfClients(2); - //config.SetContainer(ObjectFactory.Container); - config.SetContainerType(); - config.SetHost("localhost"); - config.TransportSettings.ClientSettings.Add("PrefetchCount", 100); - config.ScanForMesssageHandlers = true; - config.AddBusToContainer = true; - }); - _bus.StartConsuming(); - - _bus.Publish(new TestMsg(Guid.NewGuid())); - } - - private static void Stop() - { - _bus.Dispose(); - } - } -} diff --git a/samples/BusDisposeTest/BusDisposeTest/Properties/AssemblyInfo.cs b/samples/BusDisposeTest/BusDisposeTest/Properties/AssemblyInfo.cs deleted file mode 100644 index a57735966..000000000 --- a/samples/BusDisposeTest/BusDisposeTest/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("BusDisposeTest")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("BusDisposeTest")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2015")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("767da78c-a2ee-4bff-b237-35e1fca69c06")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/BusDisposeTest/BusDisposeTest/TestClass.cs b/samples/BusDisposeTest/BusDisposeTest/TestClass.cs deleted file mode 100644 index 426bd2302..000000000 --- a/samples/BusDisposeTest/BusDisposeTest/TestClass.cs +++ /dev/null @@ -1,17 +0,0 @@ -using System; - -namespace BusDisposeTest -{ - public class TestClass : ITestClass - { - public void Do() - { - throw new NotImplementedException(); - } - } - - internal interface ITestClass - { - void Do(); - } -} diff --git a/samples/BusDisposeTest/BusDisposeTest/TestMsgHandler.cs b/samples/BusDisposeTest/BusDisposeTest/TestMsgHandler.cs deleted file mode 100644 index d3af518c0..000000000 --- a/samples/BusDisposeTest/BusDisposeTest/TestMsgHandler.cs +++ /dev/null @@ -1,26 +0,0 @@ -using System; -using System.Collections.Generic; -using System.IO; -using System.Linq; -using System.Reflection; -using System.Text; -using System.Threading.Tasks; -using BusDisposeTest.Messages; -using Common.Logging; -using ServiceConnect.Interfaces; - -namespace BusDisposeTest -{ - public class TestMsgHandler : IMessageHandler - { - private static readonly ILog Logger = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType); - - public void Execute(TestMsg message) - { - Logger.Info("in here"); - string createText = "Hello and Welcome" + Environment.NewLine; - } - - public IConsumeContext Context { get; set; } - } -} diff --git a/samples/BusDisposeTest/BusDisposeTest/packages.config b/samples/BusDisposeTest/BusDisposeTest/packages.config deleted file mode 100644 index 6b8deb9c9..000000000 --- a/samples/BusDisposeTest/BusDisposeTest/packages.config +++ /dev/null @@ -1,3 +0,0 @@ - - - \ No newline at end of file diff --git a/samples/CompetingConsumers/.nuget/NuGet.Config b/samples/CompetingConsumers/.nuget/NuGet.Config deleted file mode 100644 index 67f8ea046..000000000 --- a/samples/CompetingConsumers/.nuget/NuGet.Config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - \ No newline at end of file diff --git a/samples/CompetingConsumers/.nuget/NuGet.exe b/samples/CompetingConsumers/.nuget/NuGet.exe deleted file mode 100644 index 9cba6edbf..000000000 Binary files a/samples/CompetingConsumers/.nuget/NuGet.exe and /dev/null differ diff --git a/samples/CompetingConsumers/.nuget/NuGet.targets b/samples/CompetingConsumers/.nuget/NuGet.targets deleted file mode 100644 index 2c3545bc7..000000000 --- a/samples/CompetingConsumers/.nuget/NuGet.targets +++ /dev/null @@ -1,151 +0,0 @@ - - - - $(MSBuildProjectDirectory)\..\ - - - false - - - false - - - true - - - false - - - - - - - - - - - $([System.IO.Path]::Combine($(SolutionDir), ".nuget")) - - - - - $(SolutionDir).nuget - - - - packages.$(MSBuildProjectName.Replace(' ', '_')).config - - - - - - $(PackagesProjectConfig) - - - - - packages.config - - - - - - - $(NuGetToolsPath)\NuGet.exe - @(PackageSource) - - "$(NuGetExePath)" - mono --runtime=v4.0.30319 $(NuGetExePath) - - $(TargetDir.Trim('\\')) - - -RequireConsent - -NonInteractive - - "$(SolutionDir) " - "$(SolutionDir)" - - - $(NuGetCommand) install "$(PackagesConfig)" -source "$(PackageSources)" $(NonInteractiveSwitch) $(RequireConsentSwitch) -solutionDir $(PaddedSolutionDir) - $(NuGetCommand) pack "$(ProjectPath)" -Properties "Configuration=$(Configuration);Platform=$(Platform)" $(NonInteractiveSwitch) -OutputDirectory "$(PackageOutputDir)" -symbols - - - - RestorePackages; - $(BuildDependsOn); - - - - - $(BuildDependsOn); - BuildPackage; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - diff --git a/samples/CompetingConsumers/CompetingConsumers.Consumer1/App.config b/samples/CompetingConsumers/CompetingConsumers.Consumer1/App.config deleted file mode 100644 index 82e04d30c..000000000 --- a/samples/CompetingConsumers/CompetingConsumers.Consumer1/App.config +++ /dev/null @@ -1,7 +0,0 @@ - - - - - - - diff --git a/samples/CompetingConsumers/CompetingConsumers.Consumer1/CompetingConsumers.Consumer1.csproj b/samples/CompetingConsumers/CompetingConsumers.Consumer1/CompetingConsumers.Consumer1.csproj deleted file mode 100644 index d67191e32..000000000 --- a/samples/CompetingConsumers/CompetingConsumers.Consumer1/CompetingConsumers.Consumer1.csproj +++ /dev/null @@ -1,99 +0,0 @@ - - - - - Debug - AnyCPU - {886149F2-9541-4851-BBEF-D825E9FF253B} - Exe - Properties - CompetingConsumers.Consumer1 - CompetingConsumers.Consumer1 - v4.5.1 - 512 - ..\ - true - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - - - {b8f3387d-6d1f-4c80-8a98-1f51b8ad6dd1} - CompetingConsumers.Messages - - - - - - \ No newline at end of file diff --git a/samples/CompetingConsumers/CompetingConsumers.Consumer1/PointToPointMessageHandler.cs b/samples/CompetingConsumers/CompetingConsumers.Consumer1/PointToPointMessageHandler.cs deleted file mode 100644 index 0fcff0b2d..000000000 --- a/samples/CompetingConsumers/CompetingConsumers.Consumer1/PointToPointMessageHandler.cs +++ /dev/null @@ -1,16 +0,0 @@ -using System; -using CompetingConsumers.Messages; -using ServiceConnect.Interfaces; - -namespace CompetingConsumers.Consumer1 -{ - public class PointToPointMessageHandler : IMessageHandler - { - public void Execute(PointToPointMessage command) - { - Console.WriteLine("Consumer 1 Received Message - {0}", command.CorrelationId); - } - - public IConsumeContext Context { get; set; } - } -} \ No newline at end of file diff --git a/samples/CompetingConsumers/CompetingConsumers.Consumer1/Program.cs b/samples/CompetingConsumers/CompetingConsumers.Consumer1/Program.cs deleted file mode 100644 index b4c1af3e8..000000000 --- a/samples/CompetingConsumers/CompetingConsumers.Consumer1/Program.cs +++ /dev/null @@ -1,24 +0,0 @@ -using System; -using System.Collections.Generic; -using ServiceConnect; - -namespace CompetingConsumers.Consumer1 -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Consumer 1 ***********"); - var bus = Bus.Initialize(x => - { - - x.ScanForMesssageHandlers = true; - x.SetQueueName("CompetingConsumers"); - }); - - bus.StartConsuming(); - - Console.ReadLine(); - } - } -} diff --git a/samples/CompetingConsumers/CompetingConsumers.Consumer1/Properties/AssemblyInfo.cs b/samples/CompetingConsumers/CompetingConsumers.Consumer1/Properties/AssemblyInfo.cs deleted file mode 100644 index 64c05fcda..000000000 --- a/samples/CompetingConsumers/CompetingConsumers.Consumer1/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("CompetingConsumers.Consumer1")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("CompetingConsumers.Consumer1")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("702bbcee-106b-4e42-b982-5cc9be051776")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/CompetingConsumers/CompetingConsumers.Consumer1/packages.config b/samples/CompetingConsumers/CompetingConsumers.Consumer1/packages.config deleted file mode 100644 index 6b8deb9c9..000000000 --- a/samples/CompetingConsumers/CompetingConsumers.Consumer1/packages.config +++ /dev/null @@ -1,3 +0,0 @@ - - - \ No newline at end of file diff --git a/samples/CompetingConsumers/CompetingConsumers.Consumer2/App.config b/samples/CompetingConsumers/CompetingConsumers.Consumer2/App.config deleted file mode 100644 index ed54d8d6a..000000000 --- a/samples/CompetingConsumers/CompetingConsumers.Consumer2/App.config +++ /dev/null @@ -1,7 +0,0 @@ - - - - - - - diff --git a/samples/CompetingConsumers/CompetingConsumers.Consumer2/CompetingConsumers.Consumer2.csproj b/samples/CompetingConsumers/CompetingConsumers.Consumer2/CompetingConsumers.Consumer2.csproj deleted file mode 100644 index 323d985ff..000000000 --- a/samples/CompetingConsumers/CompetingConsumers.Consumer2/CompetingConsumers.Consumer2.csproj +++ /dev/null @@ -1,99 +0,0 @@ - - - - - Debug - AnyCPU - {D5EC9184-81E9-4BEB-8B29-8F48B26339DF} - Exe - Properties - CompetingConsumers.Consumer2 - CompetingConsumers.Consumer2 - v4.5.1 - 512 - ..\ - true - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - - - {b8f3387d-6d1f-4c80-8a98-1f51b8ad6dd1} - CompetingConsumers.Messages - - - - - - \ No newline at end of file diff --git a/samples/CompetingConsumers/CompetingConsumers.Consumer2/PointToPointMessageHandler.cs b/samples/CompetingConsumers/CompetingConsumers.Consumer2/PointToPointMessageHandler.cs deleted file mode 100644 index 9b9e77a21..000000000 --- a/samples/CompetingConsumers/CompetingConsumers.Consumer2/PointToPointMessageHandler.cs +++ /dev/null @@ -1,16 +0,0 @@ -using System; -using CompetingConsumers.Messages; -using ServiceConnect.Interfaces; - -namespace CompetingConsumers.Consumer2 -{ - public class PointToPointMessageHandler : IMessageHandler - { - public void Execute(PointToPointMessage command) - { - Console.WriteLine("Consumer 2 Received Message - {0}", command.CorrelationId); - } - - public IConsumeContext Context { get; set; } - } -} \ No newline at end of file diff --git a/samples/CompetingConsumers/CompetingConsumers.Consumer2/Program.cs b/samples/CompetingConsumers/CompetingConsumers.Consumer2/Program.cs deleted file mode 100644 index 6397f62f8..000000000 --- a/samples/CompetingConsumers/CompetingConsumers.Consumer2/Program.cs +++ /dev/null @@ -1,22 +0,0 @@ -using System; -using ServiceConnect; - -namespace CompetingConsumers.Consumer2 -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Consumer 2 ***********"); - var bus = Bus.Initialize(x => - { - x.ScanForMesssageHandlers = true; - x.SetQueueName("CompetingConsumers"); - }); - - bus.StartConsuming(); - - Console.ReadLine(); - } - } -} diff --git a/samples/CompetingConsumers/CompetingConsumers.Consumer2/Properties/AssemblyInfo.cs b/samples/CompetingConsumers/CompetingConsumers.Consumer2/Properties/AssemblyInfo.cs deleted file mode 100644 index 62194a8b6..000000000 --- a/samples/CompetingConsumers/CompetingConsumers.Consumer2/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("CompetingConsumers.Consumer2")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("CompetingConsumers.Consumer2")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("f52df6cf-6c51-4f9c-8de8-4323f5930470")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/CompetingConsumers/CompetingConsumers.Consumer2/packages.config b/samples/CompetingConsumers/CompetingConsumers.Consumer2/packages.config deleted file mode 100644 index 6b8deb9c9..000000000 --- a/samples/CompetingConsumers/CompetingConsumers.Consumer2/packages.config +++ /dev/null @@ -1,3 +0,0 @@ - - - \ No newline at end of file diff --git a/samples/CompetingConsumers/CompetingConsumers.Messages/CompetingConsumers.Messages.csproj b/samples/CompetingConsumers/CompetingConsumers.Messages/CompetingConsumers.Messages.csproj deleted file mode 100644 index 24d23270c..000000000 --- a/samples/CompetingConsumers/CompetingConsumers.Messages/CompetingConsumers.Messages.csproj +++ /dev/null @@ -1,68 +0,0 @@ - - - - - Debug - AnyCPU - {B8F3387D-6D1F-4C80-8A98-1F51B8AD6DD1} - Library - Properties - CompetingConsumers.Messages - CompetingConsumers.Messages - v4.5.1 - 512 - ..\ - true - - - - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\Newtonsoft.Json.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - - - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/samples/CompetingConsumers/CompetingConsumers.Messages/PointToPointMessage.cs b/samples/CompetingConsumers/CompetingConsumers.Messages/PointToPointMessage.cs deleted file mode 100644 index 19d16b429..000000000 --- a/samples/CompetingConsumers/CompetingConsumers.Messages/PointToPointMessage.cs +++ /dev/null @@ -1,12 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace CompetingConsumers.Messages -{ - public class PointToPointMessage : Message - { - public PointToPointMessage(Guid correlationId) : base(correlationId) - { - } - } -} \ No newline at end of file diff --git a/samples/CompetingConsumers/CompetingConsumers.Messages/Properties/AssemblyInfo.cs b/samples/CompetingConsumers/CompetingConsumers.Messages/Properties/AssemblyInfo.cs deleted file mode 100644 index 151613f24..000000000 --- a/samples/CompetingConsumers/CompetingConsumers.Messages/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("CompetingConsumers.Messages")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("CompetingConsumers.Messages")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("7b79b68e-f2ca-4a7a-af04-6899bfe91afa")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/CompetingConsumers/CompetingConsumers.Messages/app.config b/samples/CompetingConsumers/CompetingConsumers.Messages/app.config deleted file mode 100644 index d4ff6d460..000000000 --- a/samples/CompetingConsumers/CompetingConsumers.Messages/app.config +++ /dev/null @@ -1,4 +0,0 @@ - - - - diff --git a/samples/CompetingConsumers/CompetingConsumers.Messages/packages.config b/samples/CompetingConsumers/CompetingConsumers.Messages/packages.config deleted file mode 100644 index 6b8deb9c9..000000000 --- a/samples/CompetingConsumers/CompetingConsumers.Messages/packages.config +++ /dev/null @@ -1,3 +0,0 @@ - - - \ No newline at end of file diff --git a/samples/CompetingConsumers/CompetingConsumers.Producer/App.config b/samples/CompetingConsumers/CompetingConsumers.Producer/App.config deleted file mode 100644 index d23fe9d12..000000000 --- a/samples/CompetingConsumers/CompetingConsumers.Producer/App.config +++ /dev/null @@ -1,7 +0,0 @@ - - - - - - - diff --git a/samples/CompetingConsumers/CompetingConsumers.Producer/CompetingConsumers.Producer.csproj b/samples/CompetingConsumers/CompetingConsumers.Producer/CompetingConsumers.Producer.csproj deleted file mode 100644 index 71e7d7438..000000000 --- a/samples/CompetingConsumers/CompetingConsumers.Producer/CompetingConsumers.Producer.csproj +++ /dev/null @@ -1,103 +0,0 @@ - - - - - Debug - AnyCPU - {C776C775-527C-4D7B-B47A-419B4A1AF7A6} - Exe - Properties - CompetingConsumers.Producer - CompetingConsumers.Producer - v4.5.1 - 512 - ..\ - true - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - - {b8f3387d-6d1f-4c80-8a98-1f51b8ad6dd1} - CompetingConsumers.Messages - - - - - - \ No newline at end of file diff --git a/samples/CompetingConsumers/CompetingConsumers.Producer/Program.cs b/samples/CompetingConsumers/CompetingConsumers.Producer/Program.cs deleted file mode 100644 index df849f648..000000000 --- a/samples/CompetingConsumers/CompetingConsumers.Producer/Program.cs +++ /dev/null @@ -1,30 +0,0 @@ -using System; -using CompetingConsumers.Messages; -using ServiceConnect; - -namespace CompetingConsumers.Producer -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Producer ***********"); - var bus = Bus.Initialize(config => - { - config.AddQueueMapping(typeof(PointToPointMessage), "CompetingConsumers"); - }); - - while (true) - { - Console.WriteLine("Press enter to send message"); - Console.ReadLine(); - - var id = Guid.NewGuid(); - bus.Send(new PointToPointMessage(id)); - - Console.WriteLine("Sent message - {0}", id); - Console.WriteLine(""); - } - } - } -} diff --git a/samples/CompetingConsumers/CompetingConsumers.Producer/Properties/AssemblyInfo.cs b/samples/CompetingConsumers/CompetingConsumers.Producer/Properties/AssemblyInfo.cs deleted file mode 100644 index 7735c4929..000000000 --- a/samples/CompetingConsumers/CompetingConsumers.Producer/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("CompetingConsumers.Producer")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("CompetingConsumers.Producer")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("b8b95b44-6a36-4f96-81ed-6f8197b6895f")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/CompetingConsumers/CompetingConsumers.Producer/packages.config b/samples/CompetingConsumers/CompetingConsumers.Producer/packages.config deleted file mode 100644 index 6b8deb9c9..000000000 --- a/samples/CompetingConsumers/CompetingConsumers.Producer/packages.config +++ /dev/null @@ -1,3 +0,0 @@ - - - \ No newline at end of file diff --git a/samples/CompetingConsumers/CompetingConsumers.sln b/samples/CompetingConsumers/CompetingConsumers.sln deleted file mode 100644 index be72c9a0f..000000000 --- a/samples/CompetingConsumers/CompetingConsumers.sln +++ /dev/null @@ -1,38 +0,0 @@ - -Microsoft Visual Studio Solution File, Format Version 12.00 -# Visual Studio 2012 -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "CompetingConsumers.Producer", "CompetingConsumers.Producer\CompetingConsumers.Producer.csproj", "{C776C775-527C-4D7B-B47A-419B4A1AF7A6}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "CompetingConsumers.Messages", "CompetingConsumers.Messages\CompetingConsumers.Messages.csproj", "{B8F3387D-6D1F-4C80-8A98-1F51B8AD6DD1}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "CompetingConsumers.Consumer1", "CompetingConsumers.Consumer1\CompetingConsumers.Consumer1.csproj", "{886149F2-9541-4851-BBEF-D825E9FF253B}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "CompetingConsumers.Consumer2", "CompetingConsumers.Consumer2\CompetingConsumers.Consumer2.csproj", "{D5EC9184-81E9-4BEB-8B29-8F48B26339DF}" -EndProject -Global - GlobalSection(SolutionConfigurationPlatforms) = preSolution - Debug|Any CPU = Debug|Any CPU - Release|Any CPU = Release|Any CPU - EndGlobalSection - GlobalSection(ProjectConfigurationPlatforms) = postSolution - {C776C775-527C-4D7B-B47A-419B4A1AF7A6}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {C776C775-527C-4D7B-B47A-419B4A1AF7A6}.Debug|Any CPU.Build.0 = Debug|Any CPU - {C776C775-527C-4D7B-B47A-419B4A1AF7A6}.Release|Any CPU.ActiveCfg = Release|Any CPU - {C776C775-527C-4D7B-B47A-419B4A1AF7A6}.Release|Any CPU.Build.0 = Release|Any CPU - {B8F3387D-6D1F-4C80-8A98-1F51B8AD6DD1}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {B8F3387D-6D1F-4C80-8A98-1F51B8AD6DD1}.Debug|Any CPU.Build.0 = Debug|Any CPU - {B8F3387D-6D1F-4C80-8A98-1F51B8AD6DD1}.Release|Any CPU.ActiveCfg = Release|Any CPU - {B8F3387D-6D1F-4C80-8A98-1F51B8AD6DD1}.Release|Any CPU.Build.0 = Release|Any CPU - {886149F2-9541-4851-BBEF-D825E9FF253B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {886149F2-9541-4851-BBEF-D825E9FF253B}.Debug|Any CPU.Build.0 = Debug|Any CPU - {886149F2-9541-4851-BBEF-D825E9FF253B}.Release|Any CPU.ActiveCfg = Release|Any CPU - {886149F2-9541-4851-BBEF-D825E9FF253B}.Release|Any CPU.Build.0 = Release|Any CPU - {D5EC9184-81E9-4BEB-8B29-8F48B26339DF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {D5EC9184-81E9-4BEB-8B29-8F48B26339DF}.Debug|Any CPU.Build.0 = Debug|Any CPU - {D5EC9184-81E9-4BEB-8B29-8F48B26339DF}.Release|Any CPU.ActiveCfg = Release|Any CPU - {D5EC9184-81E9-4BEB-8B29-8F48B26339DF}.Release|Any CPU.Build.0 = Release|Any CPU - EndGlobalSection - GlobalSection(SolutionProperties) = preSolution - HideSolutionNode = FALSE - EndGlobalSection -EndGlobal diff --git a/samples/ContentRouting/.vs/ContentRouting/v15/sqlite3/storage.ide b/samples/ContentRouting/.vs/ContentRouting/v15/sqlite3/storage.ide deleted file mode 100644 index e39a150b7..000000000 Binary files a/samples/ContentRouting/.vs/ContentRouting/v15/sqlite3/storage.ide and /dev/null differ diff --git a/samples/ContentRouting/App.config b/samples/ContentRouting/App.config deleted file mode 100644 index 8e1564635..000000000 --- a/samples/ContentRouting/App.config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - \ No newline at end of file diff --git a/samples/ContentRouting/ContentRouting.Consumer1/App.config b/samples/ContentRouting/ContentRouting.Consumer1/App.config deleted file mode 100644 index d0feca6f7..000000000 --- a/samples/ContentRouting/ContentRouting.Consumer1/App.config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - diff --git a/samples/ContentRouting/ContentRouting.Consumer1/ContentRouting.Consumer1.csproj b/samples/ContentRouting/ContentRouting.Consumer1/ContentRouting.Consumer1.csproj deleted file mode 100644 index 31bcaf405..000000000 --- a/samples/ContentRouting/ContentRouting.Consumer1/ContentRouting.Consumer1.csproj +++ /dev/null @@ -1,102 +0,0 @@ - - - - - Debug - AnyCPU - {0F109E7F-9005-4FDB-A80A-5EB799DD399F} - Exe - Properties - ContentRouting.Consumer1 - ContentRouting.Consumer1 - v4.5.1 - 512 - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - - {4A39CD13-3A75-47AF-91FE-9241455482FF} - ContentRouting.Messages - - - - - \ No newline at end of file diff --git a/samples/ContentRouting/ContentRouting.Consumer1/MyMessageMessageHandler.cs b/samples/ContentRouting/ContentRouting.Consumer1/MyMessageMessageHandler.cs deleted file mode 100644 index 9d5bb742c..000000000 --- a/samples/ContentRouting/ContentRouting.Consumer1/MyMessageMessageHandler.cs +++ /dev/null @@ -1,39 +0,0 @@ -using System; -using ContentRouting.Messages; -using ServiceConnect.Core; -using ServiceConnect.Interfaces; - -namespace ContentRouting.Consumer1 -{ - [RoutingKey("routingkey0")] - public class MyMessageMessageHandler : IMessageHandler - { - public void Execute(MyMessage message) - { - Console.WriteLine("Consumer 1 Received Message - {0}", message.CorrelationId); - } - - public IConsumeContext Context { get; set; } - } - - [RoutingKey("routingkey0")] - public class MyBaseMessageMessageHandler : IMessageHandler - { - public void Execute(MyBaseMessage message) - { - Console.WriteLine("Consumer 1 Received Base Message - {0}", message.CorrelationId); - } - - public IConsumeContext Context { get; set; } - } - - public class MyMessageMessageHandlerNoRoutingKey : IMessageHandler - { - public void Execute(MyMessage message) - { - Console.WriteLine("Consumer 1 (MyMessageMessageHandlerNoRoutingKey) Received Message - {0}", message.CorrelationId); - } - - public IConsumeContext Context { get; set; } - } -} diff --git a/samples/ContentRouting/ContentRouting.Consumer1/Program.cs b/samples/ContentRouting/ContentRouting.Consumer1/Program.cs deleted file mode 100644 index 8b6f68bdd..000000000 --- a/samples/ContentRouting/ContentRouting.Consumer1/Program.cs +++ /dev/null @@ -1,28 +0,0 @@ -using System; -using ServiceConnect; - -namespace ContentRouting.Consumer1 -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Consumer 1 ***********"); - - var bus = Bus.Initialize(x => - { - //x.SetContainer(myContainer); - x.ScanForMesssageHandlers = true; - x.SetQueueName("Consumer1"); - x.SetHost("localhost"); - x.SetNumberOfClients(20); - }); - - bus.StartConsuming(); - - Console.ReadLine(); - - bus.Dispose(); - } - } -} diff --git a/samples/ContentRouting/ContentRouting.Consumer1/Properties/AssemblyInfo.cs b/samples/ContentRouting/ContentRouting.Consumer1/Properties/AssemblyInfo.cs deleted file mode 100644 index 23dea4a09..000000000 --- a/samples/ContentRouting/ContentRouting.Consumer1/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,35 +0,0 @@ -using System.Reflection; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("ContentRouting.Consumer1")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("ContentRouting.Consumer1")] -[assembly: AssemblyCopyright("Copyright © Ruffer PLC 2016")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("71ecace2-13dd-4905-a977-ff96cf3465bb")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/ContentRouting/ContentRouting.Consumer2/App.config b/samples/ContentRouting/ContentRouting.Consumer2/App.config deleted file mode 100644 index d0feca6f7..000000000 --- a/samples/ContentRouting/ContentRouting.Consumer2/App.config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - diff --git a/samples/ContentRouting/ContentRouting.Consumer2/ContentRouting.Consumer2.csproj b/samples/ContentRouting/ContentRouting.Consumer2/ContentRouting.Consumer2.csproj deleted file mode 100644 index 9d3f39159..000000000 --- a/samples/ContentRouting/ContentRouting.Consumer2/ContentRouting.Consumer2.csproj +++ /dev/null @@ -1,102 +0,0 @@ - - - - - Debug - AnyCPU - {61A8A163-9D46-467B-9D51-64E2CEFBFED4} - Exe - Properties - ContentRouting.Consumer2 - ContentRouting.Consumer2 - v4.5.1 - 512 - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - - {4A39CD13-3A75-47AF-91FE-9241455482FF} - ContentRouting.Messages - - - - - \ No newline at end of file diff --git a/samples/ContentRouting/ContentRouting.Consumer2/MyMessageMessageHandler.cs b/samples/ContentRouting/ContentRouting.Consumer2/MyMessageMessageHandler.cs deleted file mode 100644 index b3b5860ed..000000000 --- a/samples/ContentRouting/ContentRouting.Consumer2/MyMessageMessageHandler.cs +++ /dev/null @@ -1,18 +0,0 @@ -using System; -using ContentRouting.Messages; -using ServiceConnect.Core; -using ServiceConnect.Interfaces; - -namespace ContentRouting.Consumer2 -{ - [RoutingKey("#")] - public class MyMessageMessageHandler : IMessageHandler - { - public void Execute(MyMessage message) - { - Console.WriteLine("Consumer 2 (catch all) Received Message - {0}", message.CorrelationId); - } - - public IConsumeContext Context { get; set; } - } -} diff --git a/samples/ContentRouting/ContentRouting.Consumer2/Program.cs b/samples/ContentRouting/ContentRouting.Consumer2/Program.cs deleted file mode 100644 index db7c7a8f1..000000000 --- a/samples/ContentRouting/ContentRouting.Consumer2/Program.cs +++ /dev/null @@ -1,26 +0,0 @@ -using System; -using ServiceConnect; - -namespace ContentRouting.Consumer2 -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Consumer 2 ***********"); - var bus = Bus.Initialize(x => - { - x.ScanForMesssageHandlers = true; - x.SetQueueName("Consumer2"); - x.SetHost("localhost"); - x.SetNumberOfClients(20); - }); - - bus.StartConsuming(); - - Console.ReadLine(); - - bus.Dispose(); - } - } -} diff --git a/samples/ContentRouting/ContentRouting.Consumer2/Properties/AssemblyInfo.cs b/samples/ContentRouting/ContentRouting.Consumer2/Properties/AssemblyInfo.cs deleted file mode 100644 index 166ecb4b0..000000000 --- a/samples/ContentRouting/ContentRouting.Consumer2/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("ContentRouting.Consumer2")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("ContentRouting.Consumer2")] -[assembly: AssemblyCopyright("Copyright © Ruffer PLC 2016")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("046aa9c1-144f-4d47-b9fa-40c3aba5a250")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/ContentRouting/ContentRouting.Messages/ContentRouting.Messages.csproj b/samples/ContentRouting/ContentRouting.Messages/ContentRouting.Messages.csproj deleted file mode 100644 index c9c09fe4f..000000000 --- a/samples/ContentRouting/ContentRouting.Messages/ContentRouting.Messages.csproj +++ /dev/null @@ -1,58 +0,0 @@ - - - - - Debug - AnyCPU - {4A39CD13-3A75-47AF-91FE-9241455482FF} - Library - Properties - ContentRouting.Messages - ContentRouting.Messages - v4.5.1 - 512 - - - - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/samples/ContentRouting/ContentRouting.Messages/MyMessage.cs b/samples/ContentRouting/ContentRouting.Messages/MyMessage.cs deleted file mode 100644 index 0c34d89c3..000000000 --- a/samples/ContentRouting/ContentRouting.Messages/MyMessage.cs +++ /dev/null @@ -1,21 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace ContentRouting.Messages -{ - - public class MyBaseMessage : Message - { - public MyBaseMessage(Guid correlationId) - : base(correlationId) - { - } - } - - public class MyMessage : MyBaseMessage - { - public MyMessage(Guid correlationId) : base(correlationId) - { - } - } -} diff --git a/samples/ContentRouting/ContentRouting.Messages/Properties/AssemblyInfo.cs b/samples/ContentRouting/ContentRouting.Messages/Properties/AssemblyInfo.cs deleted file mode 100644 index 6b288412f..000000000 --- a/samples/ContentRouting/ContentRouting.Messages/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("ContentRouting.Messages")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("ContentRouting.Messages")] -[assembly: AssemblyCopyright("Copyright © Ruffer PLC 2016")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("83832643-f286-40fc-a91d-44799024cb33")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/ContentRouting/ContentRouting.Publisher/App.config b/samples/ContentRouting/ContentRouting.Publisher/App.config deleted file mode 100644 index d0feca6f7..000000000 --- a/samples/ContentRouting/ContentRouting.Publisher/App.config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - diff --git a/samples/ContentRouting/ContentRouting.Publisher/ContentRouting.Publisher.csproj b/samples/ContentRouting/ContentRouting.Publisher/ContentRouting.Publisher.csproj deleted file mode 100644 index 3736eac42..000000000 --- a/samples/ContentRouting/ContentRouting.Publisher/ContentRouting.Publisher.csproj +++ /dev/null @@ -1,101 +0,0 @@ - - - - - Debug - AnyCPU - {C58B8F21-E108-4338-A495-825A3C5D2335} - Exe - Properties - ContentRouting.Publisher - ContentRouting.Publisher - v4.5.1 - 512 - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - {4A39CD13-3A75-47AF-91FE-9241455482FF} - ContentRouting.Messages - - - - - \ No newline at end of file diff --git a/samples/ContentRouting/ContentRouting.Publisher/Program.cs b/samples/ContentRouting/ContentRouting.Publisher/Program.cs deleted file mode 100644 index c51838346..000000000 --- a/samples/ContentRouting/ContentRouting.Publisher/Program.cs +++ /dev/null @@ -1,32 +0,0 @@ -using System; -using ContentRouting.Messages; -using ServiceConnect; - -namespace ContentRouting.Publisher -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Producer ***********"); - var bus = Bus.Initialize(config => - { - config.SetHost("localhost"); - }); - - while (true) - { - Console.WriteLine("Press enter to publish message"); - Console.ReadLine(); - - for (int i = 0; i < 1; i++) - { - var id = Guid.NewGuid(); - bus.Publish(new MyMessage(id), "routingkey0"); - } - - } - - } - } -} diff --git a/samples/ContentRouting/ContentRouting.Publisher/Properties/AssemblyInfo.cs b/samples/ContentRouting/ContentRouting.Publisher/Properties/AssemblyInfo.cs deleted file mode 100644 index bba8a7e9e..000000000 --- a/samples/ContentRouting/ContentRouting.Publisher/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("ContentRouting.Publisher")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("ContentRouting.Publisher")] -[assembly: AssemblyCopyright("Copyright © Ruffer PLC 2016")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("59fda18e-a294-4b37-9a43-115eb955e911")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/ContentRouting/ContentRouting.csproj b/samples/ContentRouting/ContentRouting.csproj deleted file mode 100644 index 8e2ee7290..000000000 --- a/samples/ContentRouting/ContentRouting.csproj +++ /dev/null @@ -1,58 +0,0 @@ - - - - - Debug - AnyCPU - {DFA9825A-E038-46B0-999B-1C5BEB0EAC2B} - Exe - Properties - ContentRouting - ContentRouting - v4.5 - 512 - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/samples/ContentRouting/ContentRouting.sln b/samples/ContentRouting/ContentRouting.sln deleted file mode 100644 index 4a7d1ad6b..000000000 --- a/samples/ContentRouting/ContentRouting.sln +++ /dev/null @@ -1,40 +0,0 @@ - -Microsoft Visual Studio Solution File, Format Version 12.00 -# Visual Studio 2013 -VisualStudioVersion = 12.0.30723.0 -MinimumVisualStudioVersion = 10.0.40219.1 -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ContentRouting.Publisher", "ContentRouting.Publisher\ContentRouting.Publisher.csproj", "{C58B8F21-E108-4338-A495-825A3C5D2335}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ContentRouting.Messages", "ContentRouting.Messages\ContentRouting.Messages.csproj", "{4A39CD13-3A75-47AF-91FE-9241455482FF}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ContentRouting.Consumer1", "ContentRouting.Consumer1\ContentRouting.Consumer1.csproj", "{0F109E7F-9005-4FDB-A80A-5EB799DD399F}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ContentRouting.Consumer2", "ContentRouting.Consumer2\ContentRouting.Consumer2.csproj", "{61A8A163-9D46-467B-9D51-64E2CEFBFED4}" -EndProject -Global - GlobalSection(SolutionConfigurationPlatforms) = preSolution - Debug|Any CPU = Debug|Any CPU - Release|Any CPU = Release|Any CPU - EndGlobalSection - GlobalSection(ProjectConfigurationPlatforms) = postSolution - {C58B8F21-E108-4338-A495-825A3C5D2335}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {C58B8F21-E108-4338-A495-825A3C5D2335}.Debug|Any CPU.Build.0 = Debug|Any CPU - {C58B8F21-E108-4338-A495-825A3C5D2335}.Release|Any CPU.ActiveCfg = Release|Any CPU - {C58B8F21-E108-4338-A495-825A3C5D2335}.Release|Any CPU.Build.0 = Release|Any CPU - {4A39CD13-3A75-47AF-91FE-9241455482FF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {4A39CD13-3A75-47AF-91FE-9241455482FF}.Debug|Any CPU.Build.0 = Debug|Any CPU - {4A39CD13-3A75-47AF-91FE-9241455482FF}.Release|Any CPU.ActiveCfg = Release|Any CPU - {4A39CD13-3A75-47AF-91FE-9241455482FF}.Release|Any CPU.Build.0 = Release|Any CPU - {0F109E7F-9005-4FDB-A80A-5EB799DD399F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {0F109E7F-9005-4FDB-A80A-5EB799DD399F}.Debug|Any CPU.Build.0 = Debug|Any CPU - {0F109E7F-9005-4FDB-A80A-5EB799DD399F}.Release|Any CPU.ActiveCfg = Release|Any CPU - {0F109E7F-9005-4FDB-A80A-5EB799DD399F}.Release|Any CPU.Build.0 = Release|Any CPU - {61A8A163-9D46-467B-9D51-64E2CEFBFED4}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {61A8A163-9D46-467B-9D51-64E2CEFBFED4}.Debug|Any CPU.Build.0 = Debug|Any CPU - {61A8A163-9D46-467B-9D51-64E2CEFBFED4}.Release|Any CPU.ActiveCfg = Release|Any CPU - {61A8A163-9D46-467B-9D51-64E2CEFBFED4}.Release|Any CPU.Build.0 = Release|Any CPU - EndGlobalSection - GlobalSection(SolutionProperties) = preSolution - HideSolutionNode = FALSE - EndGlobalSection -EndGlobal diff --git a/samples/ContentRouting/Program.cs b/samples/ContentRouting/Program.cs deleted file mode 100644 index 9623bf3c2..000000000 --- a/samples/ContentRouting/Program.cs +++ /dev/null @@ -1,15 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using System.Text; -using System.Threading.Tasks; - -namespace ContentRouting -{ - class Program - { - static void Main(string[] args) - { - } - } -} diff --git a/samples/ContentRouting/Properties/AssemblyInfo.cs b/samples/ContentRouting/Properties/AssemblyInfo.cs deleted file mode 100644 index a0888f269..000000000 --- a/samples/ContentRouting/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("ContentRouting")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("ContentRouting")] -[assembly: AssemblyCopyright("Copyright © Ruffer PLC 2016")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("0b527737-3fe8-41e2-a322-2cfd8aab5df2")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/Filters/.vs/Filters/v15/sqlite3/storage.ide b/samples/Filters/.vs/Filters/v15/sqlite3/storage.ide deleted file mode 100644 index bfffb742c..000000000 Binary files a/samples/Filters/.vs/Filters/v15/sqlite3/storage.ide and /dev/null differ diff --git a/samples/Filters/Filters.Consumer/App.config b/samples/Filters/Filters.Consumer/App.config deleted file mode 100644 index d0feca6f7..000000000 --- a/samples/Filters/Filters.Consumer/App.config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - diff --git a/samples/Filters/Filters.Consumer/Filters.Consumer.csproj b/samples/Filters/Filters.Consumer/Filters.Consumer.csproj deleted file mode 100644 index dc02b079c..000000000 --- a/samples/Filters/Filters.Consumer/Filters.Consumer.csproj +++ /dev/null @@ -1,110 +0,0 @@ - - - - - Debug - AnyCPU - {0C3DBC24-B772-4DB7-8B9E-D5A96CE2BCE5} - Exe - Properties - Filters.Consumer - Filters.Consumer - v4.5.1 - 512 - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect.Container.StructureMap\bin\Debug\net451\ServiceConnect.Container.StructureMap.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - ..\..\..\src\ServiceConnect.Container.StructureMap\bin\Debug\net451\StructureMap.dll - - - - - - - - - - - - - - - - - - - - - {28ECE813-5295-4077-BE01-595D168D7A0E} - Filters.Messages - - - - - \ No newline at end of file diff --git a/samples/Filters/Filters.Consumer/Filters.cs b/samples/Filters/Filters.Consumer/Filters.cs deleted file mode 100644 index 9a8693fd3..000000000 --- a/samples/Filters/Filters.Consumer/Filters.cs +++ /dev/null @@ -1,65 +0,0 @@ -using System; -using System.Text; -using Filters.Messages; -using Newtonsoft.Json; -using ServiceConnect.Interfaces; - -namespace Filters.Consumer -{ - public class BeforeFilter1 : IFilter - { - public bool Process(Envelope envelope) - { - Console.WriteLine("Inside before filter 1"); - var json = Encoding.UTF8.GetString(envelope.Body); - var message = JsonConvert.DeserializeObject(json); - message.FilterModifiedValue = "modified by consumer"; - envelope.Body = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(message)); - return true; - } - - public IBus Bus { get; set; } - } - - public class BeforeFilter2 : IFilter - { - public bool Process(Envelope envelope) - { - var json = Encoding.UTF8.GetString(envelope.Body); - var message = JsonConvert.DeserializeObject(json); - - Console.WriteLine("Inside before filter 2"); - - if (message.ConsumerFilterFail) - { - return false; - } - - return true; - } - - public IBus Bus { get; set; } - } - - public class AfterFilter1 : IFilter - { - public bool Process(Envelope envelope) - { - Console.WriteLine("Inside after filter 1"); - return true; - } - - public IBus Bus { get; set; } - } - - public class AfterFilter2: IFilter - { - public bool Process(Envelope envelope) - { - Console.WriteLine("Inside after filter 2"); - return true; - } - - public IBus Bus { get; set; } - } -} \ No newline at end of file diff --git a/samples/Filters/Filters.Consumer/MessageHandler.cs b/samples/Filters/Filters.Consumer/MessageHandler.cs deleted file mode 100644 index f25ae974c..000000000 --- a/samples/Filters/Filters.Consumer/MessageHandler.cs +++ /dev/null @@ -1,16 +0,0 @@ -using System; -using Filters.Messages; -using ServiceConnect.Interfaces; - -namespace Filters.Consumer -{ - public class MessageHandler : IMessageHandler - { - public void Execute(FilterMessage message) - { - Console.WriteLine("Inside consumer - Value = " + message.FilterModifiedValue); - } - - public IConsumeContext Context { get; set; } - } -} \ No newline at end of file diff --git a/samples/Filters/Filters.Consumer/Program.cs b/samples/Filters/Filters.Consumer/Program.cs deleted file mode 100644 index 1a01dd377..000000000 --- a/samples/Filters/Filters.Consumer/Program.cs +++ /dev/null @@ -1,34 +0,0 @@ -using System; -using System.Collections.Generic; -using ServiceConnect; - -namespace Filters.Consumer -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Consumer ***********"); - var bus = Bus.Initialize(config => - { - config.SetHost("localhost"); - config.SetQueueName("Filters.Consumer"); - config.SetNumberOfClients(10); - config.BeforeConsumingFilters = new List - { - typeof(BeforeFilter1), - typeof(BeforeFilter2) - }; - config.AfterConsumingFilters = new List - { - typeof(AfterFilter1), - typeof(AfterFilter2) - }; - }); - - bus.StartConsuming(); - - Console.ReadLine(); - } - } -} diff --git a/samples/Filters/Filters.Consumer/Properties/AssemblyInfo.cs b/samples/Filters/Filters.Consumer/Properties/AssemblyInfo.cs deleted file mode 100644 index d812d1c20..000000000 --- a/samples/Filters/Filters.Consumer/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("Filters.Consumer")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("Filters.Consumer")] -[assembly: AssemblyCopyright("Copyright © Ruffer PLC 2015")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("1da3d939-aefa-44a7-a528-65db614ef615")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/Filters/Filters.Messages/FilterMessage.cs b/samples/Filters/Filters.Messages/FilterMessage.cs deleted file mode 100644 index c8e8f8a89..000000000 --- a/samples/Filters/Filters.Messages/FilterMessage.cs +++ /dev/null @@ -1,16 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace Filters.Messages -{ - public class FilterMessage : Message - { - public FilterMessage(Guid correlationId) : base(correlationId) - { - } - - public bool ConsumerFilterFail { get; set; } - public bool ProducerFilterFail { get; set; } - public string FilterModifiedValue { get; set; } - } -} diff --git a/samples/Filters/Filters.Messages/Filters.Messages.csproj b/samples/Filters/Filters.Messages/Filters.Messages.csproj deleted file mode 100644 index ad9a6d2bc..000000000 --- a/samples/Filters/Filters.Messages/Filters.Messages.csproj +++ /dev/null @@ -1,63 +0,0 @@ - - - - - Debug - AnyCPU - {28ECE813-5295-4077-BE01-595D168D7A0E} - Library - Properties - Filters.Messages - Filters.Messages - v4.5.1 - 512 - - - - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - ..\..\..\src\ServiceConnect\bin\Debug\Common.Logging.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\Common.Logging.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/samples/Filters/Filters.Messages/Properties/AssemblyInfo.cs b/samples/Filters/Filters.Messages/Properties/AssemblyInfo.cs deleted file mode 100644 index 369f0a5b9..000000000 --- a/samples/Filters/Filters.Messages/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("Filters.Messages")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("Filters.Messages")] -[assembly: AssemblyCopyright("Copyright © Ruffer PLC 2015")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("5d9cc9d5-784e-45a6-b82f-228cb45d2a07")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/Filters/Filters.sln b/samples/Filters/Filters.sln deleted file mode 100644 index d7641dc52..000000000 --- a/samples/Filters/Filters.sln +++ /dev/null @@ -1,34 +0,0 @@ - -Microsoft Visual Studio Solution File, Format Version 12.00 -# Visual Studio 2013 -VisualStudioVersion = 12.0.30723.0 -MinimumVisualStudioVersion = 10.0.40219.1 -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Filters.Producer", "Filters\Filters.Producer.csproj", "{F95309FA-7DC2-4AF8-9858-0B12EB4CF333}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Filters.Consumer", "Filters.Consumer\Filters.Consumer.csproj", "{0C3DBC24-B772-4DB7-8B9E-D5A96CE2BCE5}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Filters.Messages", "Filters.Messages\Filters.Messages.csproj", "{28ECE813-5295-4077-BE01-595D168D7A0E}" -EndProject -Global - GlobalSection(SolutionConfigurationPlatforms) = preSolution - Debug|Any CPU = Debug|Any CPU - Release|Any CPU = Release|Any CPU - EndGlobalSection - GlobalSection(ProjectConfigurationPlatforms) = postSolution - {F95309FA-7DC2-4AF8-9858-0B12EB4CF333}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {F95309FA-7DC2-4AF8-9858-0B12EB4CF333}.Debug|Any CPU.Build.0 = Debug|Any CPU - {F95309FA-7DC2-4AF8-9858-0B12EB4CF333}.Release|Any CPU.ActiveCfg = Release|Any CPU - {F95309FA-7DC2-4AF8-9858-0B12EB4CF333}.Release|Any CPU.Build.0 = Release|Any CPU - {0C3DBC24-B772-4DB7-8B9E-D5A96CE2BCE5}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {0C3DBC24-B772-4DB7-8B9E-D5A96CE2BCE5}.Debug|Any CPU.Build.0 = Debug|Any CPU - {0C3DBC24-B772-4DB7-8B9E-D5A96CE2BCE5}.Release|Any CPU.ActiveCfg = Release|Any CPU - {0C3DBC24-B772-4DB7-8B9E-D5A96CE2BCE5}.Release|Any CPU.Build.0 = Release|Any CPU - {28ECE813-5295-4077-BE01-595D168D7A0E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {28ECE813-5295-4077-BE01-595D168D7A0E}.Debug|Any CPU.Build.0 = Debug|Any CPU - {28ECE813-5295-4077-BE01-595D168D7A0E}.Release|Any CPU.ActiveCfg = Release|Any CPU - {28ECE813-5295-4077-BE01-595D168D7A0E}.Release|Any CPU.Build.0 = Release|Any CPU - EndGlobalSection - GlobalSection(SolutionProperties) = preSolution - HideSolutionNode = FALSE - EndGlobalSection -EndGlobal diff --git a/samples/Filters/Filters/App.config b/samples/Filters/Filters/App.config deleted file mode 100644 index d0feca6f7..000000000 --- a/samples/Filters/Filters/App.config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - diff --git a/samples/Filters/Filters/Filters.Producer.csproj b/samples/Filters/Filters/Filters.Producer.csproj deleted file mode 100644 index 8006d0a57..000000000 --- a/samples/Filters/Filters/Filters.Producer.csproj +++ /dev/null @@ -1,109 +0,0 @@ - - - - - Debug - AnyCPU - {F95309FA-7DC2-4AF8-9858-0B12EB4CF333} - Exe - Properties - Filters - Filters - v4.5.1 - 512 - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect.Container.StructureMap\bin\Debug\net451\ServiceConnect.Container.StructureMap.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - ..\..\..\src\ServiceConnect.Container.StructureMap\bin\Debug\net451\StructureMap.dll - - - - - - - - - - - - - - - - - - - - {28ECE813-5295-4077-BE01-595D168D7A0E} - Filters.Messages - - - - - \ No newline at end of file diff --git a/samples/Filters/Filters/Filters.cs b/samples/Filters/Filters/Filters.cs deleted file mode 100644 index f7a95828a..000000000 --- a/samples/Filters/Filters/Filters.cs +++ /dev/null @@ -1,52 +0,0 @@ -using System; -using System.Text; -using Filters.Messages; -using Newtonsoft.Json; -using ServiceConnect.Interfaces; - -namespace Filters -{ - public class Filter1 : IFilter - { - private string _p1; - - public Filter1(string p1) - { - _p1 = p1; - } - - public bool Process(Envelope envelope) - { - Console.WriteLine(_p1); - Console.WriteLine("Inside outgoing filter 1"); - var json = Encoding.UTF8.GetString(envelope.Body); - var message = JsonConvert.DeserializeObject(json); - message.FilterModifiedValue = "modified by producer"; - envelope.Body = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(message)); - - return true; - } - - public IBus Bus { get; set; } - } - - public class Filter2 : IFilter - { - public bool Process(Envelope envelope) - { - var json = Encoding.UTF8.GetString(envelope.Body); - var message = JsonConvert.DeserializeObject(json); - - Console.WriteLine("Inside outgoing filter 2"); - - if (message.ProducerFilterFail) - { - return false; - } - - return true; - } - - public IBus Bus { get; set; } - } -} \ No newline at end of file diff --git a/samples/Filters/Filters/Program.cs b/samples/Filters/Filters/Program.cs deleted file mode 100644 index 09370040c..000000000 --- a/samples/Filters/Filters/Program.cs +++ /dev/null @@ -1,68 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using System.Text; -using System.Threading.Tasks; -using Filters.Messages; -using ServiceConnect; -using ServiceConnect.Container.StructureMap; -using StructureMap; - -namespace Filters -{ - class Program - { - static void Main(string[] args) - { - var container = new Container(); - - container.Configure(x => x.For().Use().Ctor("p1").Is("test dependency injection")); - - Console.WriteLine("*********** Producer ***********"); - var bus = Bus.Initialize(config => - { - config.SetHost("localhost"); - config.SetContainer(container); - config.SetQueueName("Filters.Producer"); - config.SetNumberOfClients(10); - config.AutoStartConsuming = false; - config.ScanForMesssageHandlers = false; - config.OutgoingFilters = new List - { - typeof(Filter1), - typeof(Filter2) - }; - }); - - while (true) - { - Console.WriteLine("1 to successfully filter messages"); - Console.WriteLine("2 for consumer fail filtering messages"); - Console.WriteLine("3 for producer fail filtering messages"); - var result = Console.ReadLine(); - - if (result == "1") - { - bus.Send("Filters.Consumer", new FilterMessage(Guid.NewGuid()) - { - ConsumerFilterFail = false - }); - } - else if (result == "2") - { - bus.Send("Filters.Consumer", new FilterMessage(Guid.NewGuid()) - { - ConsumerFilterFail = true - }); - } - else - { - bus.Send("Filters.Consumer", new FilterMessage(Guid.NewGuid()) - { - ProducerFilterFail = true - }); - } - } - } - } -} diff --git a/samples/Filters/Filters/Properties/AssemblyInfo.cs b/samples/Filters/Filters/Properties/AssemblyInfo.cs deleted file mode 100644 index 90fbdd27f..000000000 --- a/samples/Filters/Filters/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("Filters")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("Filters")] -[assembly: AssemblyCopyright("Copyright © Ruffer PLC 2015")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("167d34a2-a6e0-4aae-902b-b5bf700d47f7")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/GzipCompression/GzipCompression.Consumer/App.config b/samples/GzipCompression/GzipCompression.Consumer/App.config deleted file mode 100644 index 82e04d30c..000000000 --- a/samples/GzipCompression/GzipCompression.Consumer/App.config +++ /dev/null @@ -1,7 +0,0 @@ - - - - - - - diff --git a/samples/GzipCompression/GzipCompression.Consumer/CompressionMessageHandler.cs b/samples/GzipCompression/GzipCompression.Consumer/CompressionMessageHandler.cs deleted file mode 100644 index 4a2337baf..000000000 --- a/samples/GzipCompression/GzipCompression.Consumer/CompressionMessageHandler.cs +++ /dev/null @@ -1,16 +0,0 @@ -using System; -using GzipCompression.Messages; -using ServiceConnect.Interfaces; - -namespace GzipCompression.Consumer -{ - public class CompressionMessageHandler : IMessageHandler - { - public void Execute(CompressionMessage message) - { - Console.WriteLine(message.Data); - } - - public IConsumeContext Context { get; set; } - } -} diff --git a/samples/GzipCompression/GzipCompression.Consumer/GzipCompression.Consumer.csproj b/samples/GzipCompression/GzipCompression.Consumer/GzipCompression.Consumer.csproj deleted file mode 100644 index ad7d374ec..000000000 --- a/samples/GzipCompression/GzipCompression.Consumer/GzipCompression.Consumer.csproj +++ /dev/null @@ -1,107 +0,0 @@ - - - - - Debug - AnyCPU - {FA24BDAD-1ACF-4A52-98EF-3B6A7D70E14E} - Exe - Properties - GzipCompression.Consumer - GzipCompression.Consumer - v4.5.1 - 512 - - - - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - ..\GzipCompression\packages\ServiceConnect.Filters.GzipCompression.2.0.0-pre\lib\net451\ServiceConnect.Filters.GzipCompression.dll - True - - - ..\GzipCompression\packages\ServiceConnect.Interfaces.4.0.0-pre\lib\net451\ServiceConnect.Interfaces.dll - True - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - - - {ae4493f1-6861-470f-8dc6-a3d479d78c65} - GzipCompression.Messages - - - - - \ No newline at end of file diff --git a/samples/GzipCompression/GzipCompression.Consumer/Program.cs b/samples/GzipCompression/GzipCompression.Consumer/Program.cs deleted file mode 100644 index 24758ceab..000000000 --- a/samples/GzipCompression/GzipCompression.Consumer/Program.cs +++ /dev/null @@ -1,25 +0,0 @@ -using System; -using System.Collections.Generic; -using ServiceConnect; -using ServiceConnect.Filters.GzipCompression; - -namespace GzipCompression.Consumer -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** GzipCompression Consumer ***********"); - Bus.Initialize(x => - { - x.SetHost("localhost"); - x.SetQueueName("GzipCompressionConsumer"); - x.BeforeConsumingFilters = new List - { - typeof(IncomingGzipCompressionFilter) - }; - }); - Console.ReadLine(); - } - } -} diff --git a/samples/GzipCompression/GzipCompression.Consumer/Properties/AssemblyInfo.cs b/samples/GzipCompression/GzipCompression.Consumer/Properties/AssemblyInfo.cs deleted file mode 100644 index f5175a57d..000000000 --- a/samples/GzipCompression/GzipCompression.Consumer/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("GzipCompression.Consumer")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("GzipCompression.Consumer")] -[assembly: AssemblyCopyright("Copyright © Ruffer PLC 2015")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("7759dd24-2b6d-42fe-bbbb-7a4d746e726d")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/GzipCompression/GzipCompression.Consumer/packages.config b/samples/GzipCompression/GzipCompression.Consumer/packages.config deleted file mode 100644 index 788c7fe0f..000000000 --- a/samples/GzipCompression/GzipCompression.Consumer/packages.config +++ /dev/null @@ -1,5 +0,0 @@ - - - - - \ No newline at end of file diff --git a/samples/GzipCompression/GzipCompression/App.config b/samples/GzipCompression/GzipCompression/App.config deleted file mode 100644 index 82e04d30c..000000000 --- a/samples/GzipCompression/GzipCompression/App.config +++ /dev/null @@ -1,7 +0,0 @@ - - - - - - - diff --git a/samples/GzipCompression/GzipCompression/GxipCompression.Messages/CompressionMessage.cs b/samples/GzipCompression/GzipCompression/GxipCompression.Messages/CompressionMessage.cs deleted file mode 100644 index 902f2b5ce..000000000 --- a/samples/GzipCompression/GzipCompression/GxipCompression.Messages/CompressionMessage.cs +++ /dev/null @@ -1,14 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace GzipCompression.Messages -{ - public class CompressionMessage : Message - { - public CompressionMessage(Guid correlationId) : base(correlationId) - { - } - - public string Data { get; set; } - } -} diff --git a/samples/GzipCompression/GzipCompression/GxipCompression.Messages/GzipCompression.Messages.csproj b/samples/GzipCompression/GzipCompression/GxipCompression.Messages/GzipCompression.Messages.csproj deleted file mode 100644 index f4e61f40e..000000000 --- a/samples/GzipCompression/GzipCompression/GxipCompression.Messages/GzipCompression.Messages.csproj +++ /dev/null @@ -1,57 +0,0 @@ - - - - - Debug - AnyCPU - {AE4493F1-6861-470F-8DC6-A3D479D78C65} - Library - Properties - GzipCompression.Messages - GzipCompression.Messages - v4.5.1 - 512 - - - - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - ..\..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/samples/GzipCompression/GzipCompression/GxipCompression.Messages/Properties/AssemblyInfo.cs b/samples/GzipCompression/GzipCompression/GxipCompression.Messages/Properties/AssemblyInfo.cs deleted file mode 100644 index 30c4a4b8e..000000000 --- a/samples/GzipCompression/GzipCompression/GxipCompression.Messages/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("GzipCompression.Messages")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("GzipCompression.Messages")] -[assembly: AssemblyCopyright("Copyright © Ruffer PLC 2015")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("f0794ce9-12b5-4df0-9c91-3765eef5605f")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/GzipCompression/GzipCompression/GzipCompression.Messages/CompressionMessage.cs b/samples/GzipCompression/GzipCompression/GzipCompression.Messages/CompressionMessage.cs deleted file mode 100644 index f3c81a235..000000000 --- a/samples/GzipCompression/GzipCompression/GzipCompression.Messages/CompressionMessage.cs +++ /dev/null @@ -1,14 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace GzipCompression.Messages -{ - public class CompressionMessage : Message - { - public CompressionMessage(Guid correlationId) : base(correlationId) - { - } - - public string Data { get; set; } - } -} \ No newline at end of file diff --git a/samples/GzipCompression/GzipCompression/GzipCompression.Messages/GzipCompression.Messages.csproj b/samples/GzipCompression/GzipCompression/GzipCompression.Messages/GzipCompression.Messages.csproj deleted file mode 100644 index f61f50af4..000000000 --- a/samples/GzipCompression/GzipCompression/GzipCompression.Messages/GzipCompression.Messages.csproj +++ /dev/null @@ -1,56 +0,0 @@ - - - - - Debug - AnyCPU - {8D4764D0-CA07-4311-ACF7-5B5D13A74F81} - Library - Properties - GzipCompression.Messages - GzipCompression.Messages - v4.5 - 512 - - - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - ..\..\..\..\src\ServiceConnect\bin\Debug\ServiceConnect.Interfaces.dll - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/samples/GzipCompression/GzipCompression/GzipCompression.csproj b/samples/GzipCompression/GzipCompression/GzipCompression.csproj deleted file mode 100644 index e4836a1d7..000000000 --- a/samples/GzipCompression/GzipCompression/GzipCompression.csproj +++ /dev/null @@ -1,106 +0,0 @@ - - - - - Debug - AnyCPU - {3AF765CF-7A68-415D-8CD2-BCEC40E81FEB} - Exe - Properties - GzipCompression - GzipCompression - v4.5.1 - 512 - - - - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - packages\ServiceConnect.Filters.GzipCompression.2.0.0-pre\lib\net451\ServiceConnect.Filters.GzipCompression.dll - True - - - packages\ServiceConnect.Interfaces.4.0.0-pre\lib\net451\ServiceConnect.Interfaces.dll - True - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - - {ae4493f1-6861-470f-8dc6-a3d479d78c65} - GzipCompression.Messages - - - - - \ No newline at end of file diff --git a/samples/GzipCompression/GzipCompression/GzipCompression.sln b/samples/GzipCompression/GzipCompression/GzipCompression.sln deleted file mode 100644 index 161d71b74..000000000 --- a/samples/GzipCompression/GzipCompression/GzipCompression.sln +++ /dev/null @@ -1,34 +0,0 @@ - -Microsoft Visual Studio Solution File, Format Version 12.00 -# Visual Studio 2013 -VisualStudioVersion = 12.0.30723.0 -MinimumVisualStudioVersion = 10.0.40219.1 -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "GzipCompression", "GzipCompression.csproj", "{3AF765CF-7A68-415D-8CD2-BCEC40E81FEB}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "GzipCompression.Consumer", "..\GzipCompression.Consumer\GzipCompression.Consumer.csproj", "{FA24BDAD-1ACF-4A52-98EF-3B6A7D70E14E}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "GzipCompression.Messages", "GxipCompression.Messages\GzipCompression.Messages.csproj", "{AE4493F1-6861-470F-8DC6-A3D479D78C65}" -EndProject -Global - GlobalSection(SolutionConfigurationPlatforms) = preSolution - Debug|Any CPU = Debug|Any CPU - Release|Any CPU = Release|Any CPU - EndGlobalSection - GlobalSection(ProjectConfigurationPlatforms) = postSolution - {3AF765CF-7A68-415D-8CD2-BCEC40E81FEB}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {3AF765CF-7A68-415D-8CD2-BCEC40E81FEB}.Debug|Any CPU.Build.0 = Debug|Any CPU - {3AF765CF-7A68-415D-8CD2-BCEC40E81FEB}.Release|Any CPU.ActiveCfg = Release|Any CPU - {3AF765CF-7A68-415D-8CD2-BCEC40E81FEB}.Release|Any CPU.Build.0 = Release|Any CPU - {FA24BDAD-1ACF-4A52-98EF-3B6A7D70E14E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {FA24BDAD-1ACF-4A52-98EF-3B6A7D70E14E}.Debug|Any CPU.Build.0 = Debug|Any CPU - {FA24BDAD-1ACF-4A52-98EF-3B6A7D70E14E}.Release|Any CPU.ActiveCfg = Release|Any CPU - {FA24BDAD-1ACF-4A52-98EF-3B6A7D70E14E}.Release|Any CPU.Build.0 = Release|Any CPU - {AE4493F1-6861-470F-8DC6-A3D479D78C65}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {AE4493F1-6861-470F-8DC6-A3D479D78C65}.Debug|Any CPU.Build.0 = Debug|Any CPU - {AE4493F1-6861-470F-8DC6-A3D479D78C65}.Release|Any CPU.ActiveCfg = Release|Any CPU - {AE4493F1-6861-470F-8DC6-A3D479D78C65}.Release|Any CPU.Build.0 = Release|Any CPU - EndGlobalSection - GlobalSection(SolutionProperties) = preSolution - HideSolutionNode = FALSE - EndGlobalSection -EndGlobal diff --git a/samples/GzipCompression/GzipCompression/Program.cs b/samples/GzipCompression/GzipCompression/Program.cs deleted file mode 100644 index 99030c778..000000000 --- a/samples/GzipCompression/GzipCompression/Program.cs +++ /dev/null @@ -1,39 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using GzipCompression.Messages; -using ServiceConnect; -using ServiceConnect.Filters.GzipCompression; - -namespace GzipCompression -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** GzipCompression Producer ***********"); - var bus = Bus.Initialize(x => - { - x.SetHost("localhost"); - x.OutgoingFilters = new List - { - typeof(OutgoingGzipCompressionFilter) - }; - }); - - var chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"; - var random = new Random(); - var result = new string( - Enumerable.Repeat(chars, 100000) - .Select(s => s[random.Next(s.Length)]) - .ToArray()); - - bus.Send("GzipCompressionConsumer", new CompressionMessage(Guid.NewGuid()) - { - Data = result - }); - - Console.ReadLine(); - } - } -} diff --git a/samples/GzipCompression/GzipCompression/Properties/AssemblyInfo.cs b/samples/GzipCompression/GzipCompression/Properties/AssemblyInfo.cs deleted file mode 100644 index cc87efe85..000000000 --- a/samples/GzipCompression/GzipCompression/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("GzipCompression")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("GzipCompression")] -[assembly: AssemblyCopyright("Copyright © Ruffer PLC 2015")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("c3541383-ff9b-4f83-900f-4a5e8f7e0a86")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/GzipCompression/GzipCompression/packages.config b/samples/GzipCompression/GzipCompression/packages.config deleted file mode 100644 index 788c7fe0f..000000000 --- a/samples/GzipCompression/GzipCompression/packages.config +++ /dev/null @@ -1,5 +0,0 @@ - - - - - \ No newline at end of file diff --git a/samples/McDonalds/%APPDATA%/Microsoft/Windows/IETldCache/index.dat b/samples/McDonalds/%APPDATA%/Microsoft/Windows/IETldCache/index.dat deleted file mode 100644 index 294f4016d..000000000 Binary files a/samples/McDonalds/%APPDATA%/Microsoft/Windows/IETldCache/index.dat and /dev/null differ diff --git a/samples/McDonalds/.nuget/NuGet.Config b/samples/McDonalds/.nuget/NuGet.Config deleted file mode 100644 index 67f8ea046..000000000 --- a/samples/McDonalds/.nuget/NuGet.Config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - \ No newline at end of file diff --git a/samples/McDonalds/.nuget/NuGet.exe b/samples/McDonalds/.nuget/NuGet.exe deleted file mode 100644 index 9cba6edbf..000000000 Binary files a/samples/McDonalds/.nuget/NuGet.exe and /dev/null differ diff --git a/samples/McDonalds/.nuget/NuGet.targets b/samples/McDonalds/.nuget/NuGet.targets deleted file mode 100644 index 2c3545bc7..000000000 --- a/samples/McDonalds/.nuget/NuGet.targets +++ /dev/null @@ -1,151 +0,0 @@ - - - - $(MSBuildProjectDirectory)\..\ - - - false - - - false - - - true - - - false - - - - - - - - - - - $([System.IO.Path]::Combine($(SolutionDir), ".nuget")) - - - - - $(SolutionDir).nuget - - - - packages.$(MSBuildProjectName.Replace(' ', '_')).config - - - - - - $(PackagesProjectConfig) - - - - - packages.config - - - - - - - $(NuGetToolsPath)\NuGet.exe - @(PackageSource) - - "$(NuGetExePath)" - mono --runtime=v4.0.30319 $(NuGetExePath) - - $(TargetDir.Trim('\\')) - - -RequireConsent - -NonInteractive - - "$(SolutionDir) " - "$(SolutionDir)" - - - $(NuGetCommand) install "$(PackagesConfig)" -source "$(PackageSources)" $(NonInteractiveSwitch) $(RequireConsentSwitch) -solutionDir $(PaddedSolutionDir) - $(NuGetCommand) pack "$(ProjectPath)" -Properties "Configuration=$(Configuration);Platform=$(Platform)" $(NonInteractiveSwitch) -OutputDirectory "$(PackageOutputDir)" -symbols - - - - RestorePackages; - $(BuildDependsOn); - - - - - $(BuildDependsOn); - BuildPackage; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - diff --git a/samples/McDonalds/.vs/McDonalds/v15/sqlite3/storage.ide b/samples/McDonalds/.vs/McDonalds/v15/sqlite3/storage.ide deleted file mode 100644 index d991b0909..000000000 Binary files a/samples/McDonalds/.vs/McDonalds/v15/sqlite3/storage.ide and /dev/null differ diff --git a/samples/McDonalds/MacDonalds.BurgerFlipper/App.config b/samples/McDonalds/MacDonalds.BurgerFlipper/App.config deleted file mode 100644 index ed54d8d6a..000000000 --- a/samples/McDonalds/MacDonalds.BurgerFlipper/App.config +++ /dev/null @@ -1,7 +0,0 @@ - - - - - - - diff --git a/samples/McDonalds/MacDonalds.BurgerFlipper/CookBurger.cs b/samples/McDonalds/MacDonalds.BurgerFlipper/CookBurger.cs deleted file mode 100644 index 093af25ef..000000000 --- a/samples/McDonalds/MacDonalds.BurgerFlipper/CookBurger.cs +++ /dev/null @@ -1,28 +0,0 @@ -using System; -using System.Threading; -using McDonalds.Messages; -using ServiceConnect.Interfaces; - -namespace McDonalds.BurgerFlipper -{ - public class CookBurger : IMessageHandler - { - private readonly IBus _bus; - - public CookBurger(IBus bus) - { - _bus = bus; - } - - public void Execute(CookBurgerMessage message) - { - Console.WriteLine("Cooking burger: Burger size - {0}, Order Id - {1}", message.BurgerSize, message.CorrelationId); - - Console.WriteLine("Burger ready for order - {0}", message.CorrelationId); - - _bus.Publish(new BurgerCookedMessage(message.CorrelationId)); - } - - public IConsumeContext Context { get; set; } - } -} \ No newline at end of file diff --git a/samples/McDonalds/MacDonalds.BurgerFlipper/McDonalds.BurgerFlipper.csproj b/samples/McDonalds/MacDonalds.BurgerFlipper/McDonalds.BurgerFlipper.csproj deleted file mode 100644 index 9f9865264..000000000 --- a/samples/McDonalds/MacDonalds.BurgerFlipper/McDonalds.BurgerFlipper.csproj +++ /dev/null @@ -1,115 +0,0 @@ - - - - - Debug - AnyCPU - {BB314D3F-E18C-4427-A442-068AD64ACAC0} - Exe - Properties - McDonalds.BurgerFlipper - McDonalds.BurgerFlipper - v4.5.1 - 512 - ..\ - true - - - - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - - - {176927b6-bc67-469f-8c96-286ea74260c3} - McDonalds.Messages - - - - - - \ No newline at end of file diff --git a/samples/McDonalds/MacDonalds.BurgerFlipper/Program.cs b/samples/McDonalds/MacDonalds.BurgerFlipper/Program.cs deleted file mode 100644 index 14fa6a63e..000000000 --- a/samples/McDonalds/MacDonalds.BurgerFlipper/Program.cs +++ /dev/null @@ -1,29 +0,0 @@ -using System; -using System.Security.Authentication; -using ServiceConnect; - -namespace McDonalds.BurgerFlipper -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Burger Flipper ***********"); - var bus = Bus.Initialize(x => - { - //x.TransportSettings.SslEnabled = true; - //x.TransportSettings.CertPassphrase = "secret"; - //x.TransportSettings.CertPath = "path"; - //x.TransportSettings.Username = "admin"; - //x.TransportSettings.Password = "password"; - //x.TransportSettings.ServerName = "node1,node2,node3"; - //x.TransportSettings.Version = SslProtocols.Default; - x.SetHost("localhost"); - }); - - bus.StartConsuming(); - - Console.ReadLine(); - } - } -} diff --git a/samples/McDonalds/MacDonalds.BurgerFlipper/Properties/AssemblyInfo.cs b/samples/McDonalds/MacDonalds.BurgerFlipper/Properties/AssemblyInfo.cs deleted file mode 100644 index 204ee5341..000000000 --- a/samples/McDonalds/MacDonalds.BurgerFlipper/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("McDonalds.BurgerFlipper")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("McDonalds.BurgerFlipper")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("890ab505-cc90-4fef-a7b5-e55531bb7663")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/McDonalds/MacDonalds.BurgerFlipper/packages.config b/samples/McDonalds/MacDonalds.BurgerFlipper/packages.config deleted file mode 100644 index 6b8deb9c9..000000000 --- a/samples/McDonalds/MacDonalds.BurgerFlipper/packages.config +++ /dev/null @@ -1,3 +0,0 @@ - - - \ No newline at end of file diff --git a/samples/McDonalds/McDonalds.Cashier/App.config b/samples/McDonalds/McDonalds.Cashier/App.config deleted file mode 100644 index ed54d8d6a..000000000 --- a/samples/McDonalds/McDonalds.Cashier/App.config +++ /dev/null @@ -1,7 +0,0 @@ - - - - - - - diff --git a/samples/McDonalds/McDonalds.Cashier/McDonalds.Cashier.csproj b/samples/McDonalds/McDonalds.Cashier/McDonalds.Cashier.csproj deleted file mode 100644 index 95c4dbf53..000000000 --- a/samples/McDonalds/McDonalds.Cashier/McDonalds.Cashier.csproj +++ /dev/null @@ -1,138 +0,0 @@ - - - - - Debug - AnyCPU - {82809416-CED3-43F9-93CD-EAC3A0599322} - Exe - Properties - McDonalds.Cashier - McDonalds.Cashier - v4.5.1 - 512 - ..\ - true - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect.Persistance.MongoDbSsl\bin\Debug\net451\MongoDB.Bson.dll - - - False - ..\..\..\src\ServiceConnect.Persistance.MongoDbSsl\bin\Debug\net451\MongoDB.Driver.dll - - - False - ..\..\..\src\ServiceConnect.Persistance.MongoDbSsl\bin\Debug\net451\MongoDB.Driver.Core.dll - - - False - ..\..\..\src\ServiceConnect.Persistance.MongoDbSsl\bin\Debug\net451\MongoDB.Driver.Legacy.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect.Persistance.MongoDb\bin\Debug\net451\ServiceConnect.Persistance.MongoDb.dll - - - False - ..\..\..\src\ServiceConnect.Persistance.MongoDbSsl\bin\Debug\net451\ServiceConnect.Persistance.MongoDbSsl.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - - - - {176927b6-bc67-469f-8c96-286ea74260c3} - McDonalds.Messages - - - - - - \ No newline at end of file diff --git a/samples/McDonalds/McDonalds.Cashier/Meal.cs b/samples/McDonalds/McDonalds.Cashier/Meal.cs deleted file mode 100644 index 370aca6e8..000000000 --- a/samples/McDonalds/McDonalds.Cashier/Meal.cs +++ /dev/null @@ -1,76 +0,0 @@ -using System; -using McDonalds.Messages; -using ServiceConnect.Core; -using ServiceConnect.Interfaces; - -namespace McDonalds.Cashier -{ - public class Meal : ProcessManager, IStartProcessManager, - IMessageHandler, - IMessageHandler - { - private readonly IBus _bus; - - public Meal(IBus bus) - { - _bus = bus; - } - - public void Execute(NewOrderMessage message) - { - Data.CorrelationId = Guid.NewGuid(); - Data.Meal = message.Name; - Data.Size = message.Size; - - Console.WriteLine("New order recieved: Meal - {0}, Size - {1}, OrderId - {2}", message.Name, message.Size, message.CorrelationId); - - var prepFoodMessage = new PrepFoodMessage(Data.CorrelationId) - { - BunSize = message.Size - }; - Console.WriteLine("Prepping meal"); - _bus.Publish(prepFoodMessage); - - var flipBurgerMessage = new CookBurgerMessage(Data.CorrelationId) - { - BurgerSize = message.Size - }; - Console.WriteLine("Cooking burger"); - _bus.Publish(flipBurgerMessage); - } - - public void Execute(BurgerCookedMessage message) - { - Console.WriteLine("Burger cooked for order {0}", message.CorrelationId); - - Data.BurgerCooked = true; - if (Data.FoodPrepped) - { - _bus.Publish(new OrderReadyMessage(message.CorrelationId) - { - Size = Data.Size, - Meal = Data.Meal - }); - Complete = true; - Console.WriteLine("Order ready: OrderId - {0}", message.CorrelationId); - } - } - - public void Execute(FoodPrepped message) - { - Console.WriteLine("Food prepped for order {0}", message.CorrelationId); - - Data.FoodPrepped = true; - if (Data.BurgerCooked) - { - _bus.Publish(new OrderReadyMessage(message.CorrelationId) - { - Size = Data.Size, - Meal = Data.Meal - }); - Complete = true; - Console.WriteLine("Order ready: OrderId - {0}", message.CorrelationId); - } - } - } -} \ No newline at end of file diff --git a/samples/McDonalds/McDonalds.Cashier/MealData.cs b/samples/McDonalds/McDonalds.Cashier/MealData.cs deleted file mode 100644 index bd13ef882..000000000 --- a/samples/McDonalds/McDonalds.Cashier/MealData.cs +++ /dev/null @@ -1,14 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace McDonalds.Cashier -{ - public class MealData : IProcessManagerData - { - public Guid CorrelationId { get; set; } - public bool BurgerCooked { get; set; } - public bool FoodPrepped { get; set; } - public string Meal { get; set; } - public string Size { get; set; } - } -} \ No newline at end of file diff --git a/samples/McDonalds/McDonalds.Cashier/Program.cs b/samples/McDonalds/McDonalds.Cashier/Program.cs deleted file mode 100644 index a7e8bb032..000000000 --- a/samples/McDonalds/McDonalds.Cashier/Program.cs +++ /dev/null @@ -1,34 +0,0 @@ -using System; -using System.Security.Authentication; -using ServiceConnect; -using ServiceConnect.Persistance.MongoDb; -using ServiceConnect.Persistance.MongoDbSsl; - -namespace McDonalds.Cashier -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Cashier ***********"); - var bus = Bus.Initialize(x => - { - x.SetProcessManagerFinder(); - //x.SetProcessManagerFinder(); - //x.TransportSettings.SslEnabled = true; - //x.TransportSettings.CertPassphrase = "secret"; - //x.TransportSettings.CertPath = "path"; - //x.TransportSettings.Username = "admin"; - //x.TransportSettings.Password = "password"; - //x.TransportSettings.ServerName = "node1,node2,node3"; - //x.TransportSettings.Version = SslProtocols.Default; - x.SetHost("localhost"); - //x.PersistenceStoreConnectionString = @"nodes=node1;node2;node3,username=admin,password=secret,certpath=path"; - }); - - bus.StartConsuming(); - - Console.ReadLine(); - } - } -} diff --git a/samples/McDonalds/McDonalds.Cashier/Properties/AssemblyInfo.cs b/samples/McDonalds/McDonalds.Cashier/Properties/AssemblyInfo.cs deleted file mode 100644 index 5625e8b90..000000000 --- a/samples/McDonalds/McDonalds.Cashier/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("McDonalds.Cashier")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("McDonalds.Cashier")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("ae7d88fd-1fab-4f10-acaa-2490f0735ad9")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/McDonalds/McDonalds.Cashier/packages.config b/samples/McDonalds/McDonalds.Cashier/packages.config deleted file mode 100644 index 6b8deb9c9..000000000 --- a/samples/McDonalds/McDonalds.Cashier/packages.config +++ /dev/null @@ -1,3 +0,0 @@ - - - \ No newline at end of file diff --git a/samples/McDonalds/McDonalds.Customer/App.config b/samples/McDonalds/McDonalds.Customer/App.config deleted file mode 100644 index ed54d8d6a..000000000 --- a/samples/McDonalds/McDonalds.Customer/App.config +++ /dev/null @@ -1,7 +0,0 @@ - - - - - - - diff --git a/samples/McDonalds/McDonalds.Customer/McDonalds.Customer.csproj b/samples/McDonalds/McDonalds.Customer/McDonalds.Customer.csproj deleted file mode 100644 index 557f05cfa..000000000 --- a/samples/McDonalds/McDonalds.Customer/McDonalds.Customer.csproj +++ /dev/null @@ -1,114 +0,0 @@ - - - - - Debug - AnyCPU - {241CC0E3-4A83-4143-995E-531A07AAB57E} - Exe - Properties - McDonalds.Customer - McDonalds.Customer - v4.5.1 - 512 - ..\ - true - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - - - {176927b6-bc67-469f-8c96-286ea74260c3} - McDonalds.Messages - - - - - - \ No newline at end of file diff --git a/samples/McDonalds/McDonalds.Customer/MealReady.cs b/samples/McDonalds/McDonalds.Customer/MealReady.cs deleted file mode 100644 index 0a8b69eb0..000000000 --- a/samples/McDonalds/McDonalds.Customer/MealReady.cs +++ /dev/null @@ -1,16 +0,0 @@ -using System; -using McDonalds.Messages; -using ServiceConnect.Interfaces; - -namespace McDonalds.Customer -{ - public class MealReady : IMessageHandler - { - public void Execute(OrderReadyMessage message) - { - Console.WriteLine("Meal ready: Meal - {0}, Size - {1} OrderId - {2}", message.Meal, message.Size, message.CorrelationId); - } - - public IConsumeContext Context { get; set; } - } -} \ No newline at end of file diff --git a/samples/McDonalds/McDonalds.Customer/Program.cs b/samples/McDonalds/McDonalds.Customer/Program.cs deleted file mode 100644 index 0efaf75f0..000000000 --- a/samples/McDonalds/McDonalds.Customer/Program.cs +++ /dev/null @@ -1,83 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Security.Authentication; -using McDonalds.Messages; -using ServiceConnect; -using ServiceConnect.Interfaces; - -namespace McDonalds.Customer -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Customer ***********"); - IBus bus = Bus.Initialize(x => - { - //x.TransportSettings.SslEnabled = true; - //x.TransportSettings.CertPassphrase = "secret"; - //x.TransportSettings.CertPath = "path"; - //x.TransportSettings.Username = "admin"; - //x.TransportSettings.Password = "password"; - //x.TransportSettings.ServerName = "node1,node2,node3"; - //x.TransportSettings.Version = SslProtocols.Default; - //x.SetHost("node1,node2,node3"); - x.SetHost("localhost"); - }); - bus.StartConsuming(); - - while (true) - { - Console.WriteLine("Options:\n--------"); - Console.WriteLine("1. To place new order"); - //Console.WriteLine(" To exit"); - var selectedOption = SelectOption(); - - switch (selectedOption) - { - case 1: - PlaceNewOrder(bus); - break; - } - } - - } - - public static List Meals = new List - { - "Burger Meal", - "Big Mac Meal", - "Cheese Burger Meal" - }; - - public static List Sizes = new List - { - "XL", - "Large", - "Medium", - "Small" - }; - - static readonly Random Random = new Random(); - - private static void PlaceNewOrder(IBus bus) - { - var meal = Meals[Random.Next(0, 2)]; - var size = Sizes[Random.Next(0, 3)]; - - bus.Publish(new NewOrderMessage(Guid.NewGuid()) { Name = meal, Size = size }); - } - - private static int SelectOption() - { - int selectedOption; - if (!Int32.TryParse(Console.ReadLine(), out selectedOption)) - { - Console.WriteLine("Error, try again."); - SelectOption(); - } - - return selectedOption; - } - } -} diff --git a/samples/McDonalds/McDonalds.Customer/Properties/AssemblyInfo.cs b/samples/McDonalds/McDonalds.Customer/Properties/AssemblyInfo.cs deleted file mode 100644 index ab86cc35f..000000000 --- a/samples/McDonalds/McDonalds.Customer/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("McDonalds.Customer")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("McDonalds.Customer")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("b9e93b0b-0123-40dd-b95f-c9b37931888b")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/McDonalds/McDonalds.Customer/packages.config b/samples/McDonalds/McDonalds.Customer/packages.config deleted file mode 100644 index 6b8deb9c9..000000000 --- a/samples/McDonalds/McDonalds.Customer/packages.config +++ /dev/null @@ -1,3 +0,0 @@ - - - \ No newline at end of file diff --git a/samples/McDonalds/McDonalds.FoodPreparer/App.config b/samples/McDonalds/McDonalds.FoodPreparer/App.config deleted file mode 100644 index d23fe9d12..000000000 --- a/samples/McDonalds/McDonalds.FoodPreparer/App.config +++ /dev/null @@ -1,7 +0,0 @@ - - - - - - - diff --git a/samples/McDonalds/McDonalds.FoodPreparer/McDonalds.FoodPreparer.csproj b/samples/McDonalds/McDonalds.FoodPreparer/McDonalds.FoodPreparer.csproj deleted file mode 100644 index 5f50a8904..000000000 --- a/samples/McDonalds/McDonalds.FoodPreparer/McDonalds.FoodPreparer.csproj +++ /dev/null @@ -1,114 +0,0 @@ - - - - - Debug - AnyCPU - {973D415E-DA29-4094-8379-7A7019B9010D} - Exe - Properties - McDonalds.FoodPreparer - McDonalds.FoodPreparer - v4.5.1 - 512 - ..\ - true - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - - - {176927b6-bc67-469f-8c96-286ea74260c3} - McDonalds.Messages - - - - - - \ No newline at end of file diff --git a/samples/McDonalds/McDonalds.FoodPreparer/PrepFood.cs b/samples/McDonalds/McDonalds.FoodPreparer/PrepFood.cs deleted file mode 100644 index 3c6e23258..000000000 --- a/samples/McDonalds/McDonalds.FoodPreparer/PrepFood.cs +++ /dev/null @@ -1,30 +0,0 @@ -using System; -using System.Threading; -using McDonalds.Messages; -using ServiceConnect.Interfaces; - -namespace McDonalds.FoodPreparer -{ - public class PrepFood : IMessageHandler - { - private readonly IBus _bus; - - public PrepFood(IBus bus) - { - _bus = bus; - } - - public void Execute(PrepFoodMessage message) - { - Console.WriteLine("Preping order: BunSize - {0}, OrderId - {1}", message.BunSize, message.CorrelationId); - - Thread.Sleep(2000); - - Console.WriteLine("Preping done for order - {0}", message.CorrelationId); - - _bus.Publish(new FoodPrepped(message.CorrelationId)); - } - - public IConsumeContext Context { get; set; } - } -} \ No newline at end of file diff --git a/samples/McDonalds/McDonalds.FoodPreparer/Program.cs b/samples/McDonalds/McDonalds.FoodPreparer/Program.cs deleted file mode 100644 index aa8227cad..000000000 --- a/samples/McDonalds/McDonalds.FoodPreparer/Program.cs +++ /dev/null @@ -1,30 +0,0 @@ -using System; -using System.Security.Authentication; -using ServiceConnect; - -namespace McDonalds.FoodPreparer -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Food Preparer ***********"); - var bus = Bus.Initialize(x => - { - //x.TransportSettings.SslEnabled = true; - //x.TransportSettings.CertPassphrase = "secret"; - //x.TransportSettings.CertPath = "path"; - //x.TransportSettings.Username = "admin"; - //x.TransportSettings.Password = "password"; - //x.TransportSettings.ServerName = "node1,node2,node3"; - //x.TransportSettings.Version = SslProtocols.Default; - //x.SetHost("node1,node2,node3"); - x.SetHost("localhost"); - }); - - bus.StartConsuming(); - - Console.ReadLine(); - } - } -} diff --git a/samples/McDonalds/McDonalds.FoodPreparer/Properties/AssemblyInfo.cs b/samples/McDonalds/McDonalds.FoodPreparer/Properties/AssemblyInfo.cs deleted file mode 100644 index c1a3dfa77..000000000 --- a/samples/McDonalds/McDonalds.FoodPreparer/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("McDonalds.FoodPreparer")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("McDonalds.FoodPreparer")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("a89a01c0-7e52-4119-a1e9-d3f68bd46e93")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/McDonalds/McDonalds.FoodPreparer/packages.config b/samples/McDonalds/McDonalds.FoodPreparer/packages.config deleted file mode 100644 index 6b8deb9c9..000000000 --- a/samples/McDonalds/McDonalds.FoodPreparer/packages.config +++ /dev/null @@ -1,3 +0,0 @@ - - - \ No newline at end of file diff --git a/samples/McDonalds/McDonalds.Messages/BurgerCookedMessage.cs b/samples/McDonalds/McDonalds.Messages/BurgerCookedMessage.cs deleted file mode 100644 index 4229cdbb6..000000000 --- a/samples/McDonalds/McDonalds.Messages/BurgerCookedMessage.cs +++ /dev/null @@ -1,12 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace McDonalds.Messages -{ - public class BurgerCookedMessage : Message - { - public BurgerCookedMessage(Guid correlationId) : base(correlationId) - { - } - } -} \ No newline at end of file diff --git a/samples/McDonalds/McDonalds.Messages/CookBurgerMessage.cs b/samples/McDonalds/McDonalds.Messages/CookBurgerMessage.cs deleted file mode 100644 index 92381f17d..000000000 --- a/samples/McDonalds/McDonalds.Messages/CookBurgerMessage.cs +++ /dev/null @@ -1,14 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace McDonalds.Messages -{ - public class CookBurgerMessage : Message - { - public CookBurgerMessage(Guid correlationId) : base(correlationId) - { - } - - public string BurgerSize { get; set; } - } -} \ No newline at end of file diff --git a/samples/McDonalds/McDonalds.Messages/FoodPrepped.cs b/samples/McDonalds/McDonalds.Messages/FoodPrepped.cs deleted file mode 100644 index 87b5ed7b6..000000000 --- a/samples/McDonalds/McDonalds.Messages/FoodPrepped.cs +++ /dev/null @@ -1,12 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace McDonalds.Messages -{ - public class FoodPrepped : Message - { - public FoodPrepped(Guid correlationId) : base(correlationId) - { - } - } -} \ No newline at end of file diff --git a/samples/McDonalds/McDonalds.Messages/McDonalds.Messages.csproj b/samples/McDonalds/McDonalds.Messages/McDonalds.Messages.csproj deleted file mode 100644 index 96352af91..000000000 --- a/samples/McDonalds/McDonalds.Messages/McDonalds.Messages.csproj +++ /dev/null @@ -1,69 +0,0 @@ - - - - - Debug - AnyCPU - {176927B6-BC67-469F-8C96-286EA74260C3} - Library - Properties - McDonalds.Messages - McDonalds.Messages - v4.5.1 - 512 - ..\ - true - - - - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - - - - - - - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/samples/McDonalds/McDonalds.Messages/NewOrderMessage.cs b/samples/McDonalds/McDonalds.Messages/NewOrderMessage.cs deleted file mode 100644 index 105e1f8d0..000000000 --- a/samples/McDonalds/McDonalds.Messages/NewOrderMessage.cs +++ /dev/null @@ -1,16 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace McDonalds.Messages -{ - public class NewOrderMessage : Message - { - public string Name { get; set; } - public string Size { get; set; } - - public NewOrderMessage(Guid correlationId) - : base(correlationId) - { } - } - -} \ No newline at end of file diff --git a/samples/McDonalds/McDonalds.Messages/OrderReadyMessage.cs b/samples/McDonalds/McDonalds.Messages/OrderReadyMessage.cs deleted file mode 100644 index b305b6ba9..000000000 --- a/samples/McDonalds/McDonalds.Messages/OrderReadyMessage.cs +++ /dev/null @@ -1,15 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace McDonalds.Messages -{ - public class OrderReadyMessage : Message - { - public OrderReadyMessage(Guid correlationId) : base(correlationId) - { - } - - public string Meal { get; set; } - public string Size { get; set; } - } -} \ No newline at end of file diff --git a/samples/McDonalds/McDonalds.Messages/PrepFoodMessage.cs b/samples/McDonalds/McDonalds.Messages/PrepFoodMessage.cs deleted file mode 100644 index 93742ad4e..000000000 --- a/samples/McDonalds/McDonalds.Messages/PrepFoodMessage.cs +++ /dev/null @@ -1,14 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace McDonalds.Messages -{ - public class PrepFoodMessage : Message - { - public PrepFoodMessage(Guid correlationId) : base(correlationId) - { - } - - public string BunSize { get; set; } - } -} \ No newline at end of file diff --git a/samples/McDonalds/McDonalds.Messages/Properties/AssemblyInfo.cs b/samples/McDonalds/McDonalds.Messages/Properties/AssemblyInfo.cs deleted file mode 100644 index 73fd001a5..000000000 --- a/samples/McDonalds/McDonalds.Messages/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("McDonalds.Messages")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("McDonalds.Messages")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("981c3895-136f-4295-9583-150337c57fc4")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/McDonalds/McDonalds.Messages/packages.config b/samples/McDonalds/McDonalds.Messages/packages.config deleted file mode 100644 index 6b8deb9c9..000000000 --- a/samples/McDonalds/McDonalds.Messages/packages.config +++ /dev/null @@ -1,3 +0,0 @@ - - - \ No newline at end of file diff --git a/samples/McDonalds/McDonalds.sln b/samples/McDonalds/McDonalds.sln deleted file mode 100644 index 621c2aec9..000000000 --- a/samples/McDonalds/McDonalds.sln +++ /dev/null @@ -1,51 +0,0 @@ - -Microsoft Visual Studio Solution File, Format Version 12.00 -# Visual Studio 2012 -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "McDonalds.Customer", "McDonalds.Customer\McDonalds.Customer.csproj", "{241CC0E3-4A83-4143-995E-531A07AAB57E}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "McDonalds.Cashier", "McDonalds.Cashier\McDonalds.Cashier.csproj", "{82809416-CED3-43F9-93CD-EAC3A0599322}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "McDonalds.FoodPreparer", "McDonalds.FoodPreparer\McDonalds.FoodPreparer.csproj", "{973D415E-DA29-4094-8379-7A7019B9010D}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "McDonalds.Messages", "McDonalds.Messages\McDonalds.Messages.csproj", "{176927B6-BC67-469F-8C96-286EA74260C3}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "McDonalds.BurgerFlipper", "MacDonalds.BurgerFlipper\McDonalds.BurgerFlipper.csproj", "{BB314D3F-E18C-4427-A442-068AD64ACAC0}" -EndProject -Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = ".nuget", ".nuget", "{4B3F8B48-F860-4535-BF90-D10B66F41185}" - ProjectSection(SolutionItems) = preProject - .nuget\NuGet.Config = .nuget\NuGet.Config - .nuget\NuGet.exe = .nuget\NuGet.exe - .nuget\NuGet.targets = .nuget\NuGet.targets - EndProjectSection -EndProject -Global - GlobalSection(SolutionConfigurationPlatforms) = preSolution - Debug|Any CPU = Debug|Any CPU - Release|Any CPU = Release|Any CPU - EndGlobalSection - GlobalSection(ProjectConfigurationPlatforms) = postSolution - {241CC0E3-4A83-4143-995E-531A07AAB57E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {241CC0E3-4A83-4143-995E-531A07AAB57E}.Debug|Any CPU.Build.0 = Debug|Any CPU - {241CC0E3-4A83-4143-995E-531A07AAB57E}.Release|Any CPU.ActiveCfg = Release|Any CPU - {241CC0E3-4A83-4143-995E-531A07AAB57E}.Release|Any CPU.Build.0 = Release|Any CPU - {82809416-CED3-43F9-93CD-EAC3A0599322}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {82809416-CED3-43F9-93CD-EAC3A0599322}.Debug|Any CPU.Build.0 = Debug|Any CPU - {82809416-CED3-43F9-93CD-EAC3A0599322}.Release|Any CPU.ActiveCfg = Release|Any CPU - {82809416-CED3-43F9-93CD-EAC3A0599322}.Release|Any CPU.Build.0 = Release|Any CPU - {973D415E-DA29-4094-8379-7A7019B9010D}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {973D415E-DA29-4094-8379-7A7019B9010D}.Debug|Any CPU.Build.0 = Debug|Any CPU - {973D415E-DA29-4094-8379-7A7019B9010D}.Release|Any CPU.ActiveCfg = Release|Any CPU - {973D415E-DA29-4094-8379-7A7019B9010D}.Release|Any CPU.Build.0 = Release|Any CPU - {176927B6-BC67-469F-8C96-286EA74260C3}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {176927B6-BC67-469F-8C96-286EA74260C3}.Debug|Any CPU.Build.0 = Debug|Any CPU - {176927B6-BC67-469F-8C96-286EA74260C3}.Release|Any CPU.ActiveCfg = Release|Any CPU - {176927B6-BC67-469F-8C96-286EA74260C3}.Release|Any CPU.Build.0 = Release|Any CPU - {BB314D3F-E18C-4427-A442-068AD64ACAC0}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {BB314D3F-E18C-4427-A442-068AD64ACAC0}.Debug|Any CPU.Build.0 = Debug|Any CPU - {BB314D3F-E18C-4427-A442-068AD64ACAC0}.Release|Any CPU.ActiveCfg = Release|Any CPU - {BB314D3F-E18C-4427-A442-068AD64ACAC0}.Release|Any CPU.Build.0 = Release|Any CPU - EndGlobalSection - GlobalSection(SolutionProperties) = preSolution - HideSolutionNode = FALSE - EndGlobalSection -EndGlobal diff --git a/samples/MessageDeduplication/.nuget/NuGet.Config b/samples/MessageDeduplication/.nuget/NuGet.Config deleted file mode 100644 index 67f8ea046..000000000 --- a/samples/MessageDeduplication/.nuget/NuGet.Config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - \ No newline at end of file diff --git a/samples/MessageDeduplication/.nuget/NuGet.exe b/samples/MessageDeduplication/.nuget/NuGet.exe deleted file mode 100644 index 9cba6edbf..000000000 Binary files a/samples/MessageDeduplication/.nuget/NuGet.exe and /dev/null differ diff --git a/samples/MessageDeduplication/.nuget/NuGet.targets b/samples/MessageDeduplication/.nuget/NuGet.targets deleted file mode 100644 index 2c3545bc7..000000000 --- a/samples/MessageDeduplication/.nuget/NuGet.targets +++ /dev/null @@ -1,151 +0,0 @@ - - - - $(MSBuildProjectDirectory)\..\ - - - false - - - false - - - true - - - false - - - - - - - - - - - $([System.IO.Path]::Combine($(SolutionDir), ".nuget")) - - - - - $(SolutionDir).nuget - - - - packages.$(MSBuildProjectName.Replace(' ', '_')).config - - - - - - $(PackagesProjectConfig) - - - - - packages.config - - - - - - - $(NuGetToolsPath)\NuGet.exe - @(PackageSource) - - "$(NuGetExePath)" - mono --runtime=v4.0.30319 $(NuGetExePath) - - $(TargetDir.Trim('\\')) - - -RequireConsent - -NonInteractive - - "$(SolutionDir) " - "$(SolutionDir)" - - - $(NuGetCommand) install "$(PackagesConfig)" -source "$(PackageSources)" $(NonInteractiveSwitch) $(RequireConsentSwitch) -solutionDir $(PaddedSolutionDir) - $(NuGetCommand) pack "$(ProjectPath)" -Properties "Configuration=$(Configuration);Platform=$(Platform)" $(NonInteractiveSwitch) -OutputDirectory "$(PackageOutputDir)" -symbols - - - - RestorePackages; - $(BuildDependsOn); - - - - - $(BuildDependsOn); - BuildPackage; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - diff --git a/samples/MessageDeduplication/MessageDeduplication.sln b/samples/MessageDeduplication/MessageDeduplication.sln deleted file mode 100644 index f6fabca09..000000000 --- a/samples/MessageDeduplication/MessageDeduplication.sln +++ /dev/null @@ -1,41 +0,0 @@ - -Microsoft Visual Studio Solution File, Format Version 12.00 -# Visual Studio 2013 -VisualStudioVersion = 12.0.30723.0 -MinimumVisualStudioVersion = 10.0.40219.1 -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PointToPoint.Messages", "PointToPoint.Messages\PointToPoint.Messages.csproj", "{DDFDEC3A-9546-4D50-83DF-464CBFCBDE82}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PointToPoint.Producer", "PointToPoint.Producer\PointToPoint.Producer.csproj", "{343DC117-1550-4FE1-A867-01F76CBD438C}" -EndProject -Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = ".nuget", ".nuget", "{46CB27FF-20C9-4578-823D-1EA15C8A7A83}" - ProjectSection(SolutionItems) = preProject - .nuget\NuGet.Config = .nuget\NuGet.Config - .nuget\NuGet.exe = .nuget\NuGet.exe - .nuget\NuGet.targets = .nuget\NuGet.targets - EndProjectSection -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PointToPoint.Consumer", "PointToPoint.Consumer\PointToPoint.Consumer.csproj", "{17FC8160-EBE8-443A-9A58-3CFBF7DE0E0A}" -EndProject -Global - GlobalSection(SolutionConfigurationPlatforms) = preSolution - Debug|Any CPU = Debug|Any CPU - Release|Any CPU = Release|Any CPU - EndGlobalSection - GlobalSection(ProjectConfigurationPlatforms) = postSolution - {DDFDEC3A-9546-4D50-83DF-464CBFCBDE82}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {DDFDEC3A-9546-4D50-83DF-464CBFCBDE82}.Debug|Any CPU.Build.0 = Debug|Any CPU - {DDFDEC3A-9546-4D50-83DF-464CBFCBDE82}.Release|Any CPU.ActiveCfg = Release|Any CPU - {DDFDEC3A-9546-4D50-83DF-464CBFCBDE82}.Release|Any CPU.Build.0 = Release|Any CPU - {343DC117-1550-4FE1-A867-01F76CBD438C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {343DC117-1550-4FE1-A867-01F76CBD438C}.Debug|Any CPU.Build.0 = Debug|Any CPU - {343DC117-1550-4FE1-A867-01F76CBD438C}.Release|Any CPU.ActiveCfg = Release|Any CPU - {343DC117-1550-4FE1-A867-01F76CBD438C}.Release|Any CPU.Build.0 = Release|Any CPU - {17FC8160-EBE8-443A-9A58-3CFBF7DE0E0A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {17FC8160-EBE8-443A-9A58-3CFBF7DE0E0A}.Debug|Any CPU.Build.0 = Debug|Any CPU - {17FC8160-EBE8-443A-9A58-3CFBF7DE0E0A}.Release|Any CPU.ActiveCfg = Release|Any CPU - {17FC8160-EBE8-443A-9A58-3CFBF7DE0E0A}.Release|Any CPU.Build.0 = Release|Any CPU - EndGlobalSection - GlobalSection(SolutionProperties) = preSolution - HideSolutionNode = FALSE - EndGlobalSection -EndGlobal diff --git a/samples/MessageDeduplication/PointToPoint.Consumer/App.config b/samples/MessageDeduplication/PointToPoint.Consumer/App.config deleted file mode 100644 index 321bd1f95..000000000 --- a/samples/MessageDeduplication/PointToPoint.Consumer/App.config +++ /dev/null @@ -1,63 +0,0 @@ - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - diff --git a/samples/MessageDeduplication/PointToPoint.Consumer/MessageDeduplicationHandler.cs b/samples/MessageDeduplication/PointToPoint.Consumer/MessageDeduplicationHandler.cs deleted file mode 100644 index 8a175e38a..000000000 --- a/samples/MessageDeduplication/PointToPoint.Consumer/MessageDeduplicationHandler.cs +++ /dev/null @@ -1,17 +0,0 @@ -using System; -using PointToPoint.Messages; -using ServiceConnect.Interfaces; - -namespace PointToPoint.Consumer -{ - public class MessageDeduplicationHandler : IMessageHandler - { - public void Execute(PointToPointMessage command) - { - if (command.SerialNumber > 999990) - Console.WriteLine("{0}: Consumer 1 - {1}", DateTime.Now, command.SerialNumber); - } - - public IConsumeContext Context { get; set; } - } -} \ No newline at end of file diff --git a/samples/MessageDeduplication/PointToPoint.Consumer/PointToPoint.Consumer.csproj b/samples/MessageDeduplication/PointToPoint.Consumer/PointToPoint.Consumer.csproj deleted file mode 100644 index 57e87ad2c..000000000 --- a/samples/MessageDeduplication/PointToPoint.Consumer/PointToPoint.Consumer.csproj +++ /dev/null @@ -1,143 +0,0 @@ - - - - - Debug - AnyCPU - {17FC8160-EBE8-443A-9A58-3CFBF7DE0E0A} - Exe - Properties - PointToPoint.Consumer - PointToPoint.Consumer - v4.5.1 - 512 - ..\ - true - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - ..\packages\Common.Logging.3.4.1\lib\net40\Common.Logging.dll - - - ..\packages\Common.Logging.Core.3.4.1\lib\net40\Common.Logging.Core.dll - - - ..\packages\log4net.2.0.5\lib\net45-full\log4net.dll - - - ..\packages\Microsoft.Diagnostics.Tracing.EventSource.Redist.1.1.28\lib\net40\Microsoft.Diagnostics.Tracing.EventSource.dll - - - ..\packages\MongoDB.Bson.2.4.4\lib\net45\MongoDB.Bson.dll - - - ..\packages\MongoDB.Driver.2.4.4\lib\net45\MongoDB.Driver.dll - - - ..\packages\MongoDB.Driver.Core.2.4.4\lib\net45\MongoDB.Driver.Core.dll - - - ..\packages\mongocsharpdriver.2.4.4\lib\net45\MongoDB.Driver.Legacy.dll - - - ..\packages\Newtonsoft.Json.10.0.3\lib\net45\Newtonsoft.Json.dll - - - ..\packages\RabbitMQ.Client.5.0.1\lib\net451\RabbitMQ.Client.dll - - - ..\packages\ServiceConnect.5.0.8\lib\net451\ServiceConnect.dll - - - ..\packages\ServiceConnect.5.0.8\lib\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\packages\ServiceConnect.5.0.8\lib\net451\ServiceConnect.Container.Default.dll - - - ..\packages\ServiceConnect.5.0.8\lib\net451\ServiceConnect.Core.dll - - - ..\packages\ServiceConnect.Filters.MessageDeduplication.2.0.5\lib\net451\ServiceConnect.Filters.MessageDeduplication.dll - - - ..\packages\ServiceConnect.5.0.8\lib\net451\ServiceConnect.Interfaces.dll - - - ..\packages\ServiceConnect.5.0.8\lib\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\packages\ServiceConnect.5.0.8\lib\net451\ServiceConnect.Persistance.SqlServer.dll - - - ..\packages\StackExchange.Redis.1.2.6\lib\net45\StackExchange.Redis.dll - - - - - - - ..\packages\System.Reactive.Core.3.1.1\lib\net45\System.Reactive.Core.dll - - - ..\packages\System.Reactive.Interfaces.3.1.1\lib\net45\System.Reactive.Interfaces.dll - - - ..\packages\System.Reactive.Linq.3.1.1\lib\net45\System.Reactive.Linq.dll - - - ..\packages\System.Runtime.InteropServices.RuntimeInformation.4.0.0\lib\net45\System.Runtime.InteropServices.RuntimeInformation.dll - - - - - - - - - - - - - - - Designer - - - - - - {ddfdec3a-9546-4d50-83df-464cbfcbde82} - PointToPoint.Messages - - - - - - \ No newline at end of file diff --git a/samples/MessageDeduplication/PointToPoint.Consumer/Program.cs b/samples/MessageDeduplication/PointToPoint.Consumer/Program.cs deleted file mode 100644 index da203af02..000000000 --- a/samples/MessageDeduplication/PointToPoint.Consumer/Program.cs +++ /dev/null @@ -1,49 +0,0 @@ -using System; -using System.Collections.Generic; -using log4net.Config; -using ServiceConnect; -using ServiceConnect.Container.Default; -using ServiceConnect.Filters.MessageDeduplication; -using ServiceConnect.Filters.MessageDeduplication.Filters; - -namespace PointToPoint.Consumer -{ - class Program - { - static void Main(string[] args) - { - XmlConfigurator.Configure(); - Console.WriteLine("*********** Consumer ***********"); - - var deduplicationSettings = DeduplicationFilterSettings.Instance; - deduplicationSettings.MsgCleanupIntervalMinutes = 12; - deduplicationSettings.MsgExpiryHours = 2; - deduplicationSettings.DatabaseNameMongoDb = "MessageDeduplication"; - deduplicationSettings.CollectionNameMongoDb = "JPBenchmark"; - - var bus = Bus.Initialize(config => - { - config.BeforeConsumingFilters = new List - { - typeof(IncomingDeduplicationFilterRedis) - }; - config.AfterConsumingFilters = new List - { - typeof(OutgoingDeduplicationFilterRedis) - }; - config.SetQueueName("MessageDeduplication.Consumer"); - config.SetNumberOfClients(10); - config.SetContainerType(); - config.SetHost("localhost"); - config.TransportSettings.ClientSettings.Add("PrefetchCount", 300); - config.TransportSettings.ClientSettings.Add("HeartbeatEnabled", true); - //config.TransportSettings.ClientSettings.Add("DisablePrefetch", true); - }); - bus.StartConsuming(); - - Console.ReadLine(); - - bus.Dispose(); - } - } -} diff --git a/samples/MessageDeduplication/PointToPoint.Consumer/Properties/AssemblyInfo.cs b/samples/MessageDeduplication/PointToPoint.Consumer/Properties/AssemblyInfo.cs deleted file mode 100644 index 60c32acc8..000000000 --- a/samples/MessageDeduplication/PointToPoint.Consumer/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("PointToPoint.Consumer")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("PointToPoint.Consumer")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("f5ea2abb-9d0d-47b5-a51f-bc80d0a04ea4")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/MessageDeduplication/PointToPoint.Consumer/packages.config b/samples/MessageDeduplication/PointToPoint.Consumer/packages.config deleted file mode 100644 index ab235cf8a..000000000 --- a/samples/MessageDeduplication/PointToPoint.Consumer/packages.config +++ /dev/null @@ -1,24 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/samples/MessageDeduplication/PointToPoint.Messages/PointToPoint.Messages.csproj b/samples/MessageDeduplication/PointToPoint.Messages/PointToPoint.Messages.csproj deleted file mode 100644 index f74713d66..000000000 --- a/samples/MessageDeduplication/PointToPoint.Messages/PointToPoint.Messages.csproj +++ /dev/null @@ -1,128 +0,0 @@ - - - - - Debug - AnyCPU - {DDFDEC3A-9546-4D50-83DF-464CBFCBDE82} - Library - Properties - PointToPoint.Messages - PointToPoint.Messages - v4.5.1 - 512 - ..\ - true - - - - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - ..\packages\Common.Logging.3.4.1\lib\net40\Common.Logging.dll - - - ..\packages\Common.Logging.Core.3.4.1\lib\net40\Common.Logging.Core.dll - - - ..\packages\Microsoft.Diagnostics.Tracing.EventSource.Redist.1.1.28\lib\net40\Microsoft.Diagnostics.Tracing.EventSource.dll - - - ..\packages\MongoDB.Bson.2.4.4\lib\net45\MongoDB.Bson.dll - - - ..\packages\MongoDB.Driver.2.4.4\lib\net45\MongoDB.Driver.dll - - - ..\packages\MongoDB.Driver.Core.2.4.4\lib\net45\MongoDB.Driver.Core.dll - - - ..\packages\mongocsharpdriver.2.4.4\lib\net45\MongoDB.Driver.Legacy.dll - - - ..\packages\Newtonsoft.Json.10.0.3\lib\net45\Newtonsoft.Json.dll - - - ..\packages\RabbitMQ.Client.5.0.1\lib\net451\RabbitMQ.Client.dll - - - ..\packages\ServiceConnect.5.0.8\lib\net451\ServiceConnect.dll - - - ..\packages\ServiceConnect.5.0.8\lib\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\packages\ServiceConnect.5.0.8\lib\net451\ServiceConnect.Container.Default.dll - - - ..\packages\ServiceConnect.5.0.8\lib\net451\ServiceConnect.Core.dll - - - ..\packages\ServiceConnect.Filters.MessageDeduplication.2.0.5\lib\net451\ServiceConnect.Filters.MessageDeduplication.dll - - - ..\packages\ServiceConnect.5.0.8\lib\net451\ServiceConnect.Interfaces.dll - - - ..\packages\ServiceConnect.5.0.8\lib\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\packages\ServiceConnect.5.0.8\lib\net451\ServiceConnect.Persistance.SqlServer.dll - - - ..\packages\StackExchange.Redis.1.2.6\lib\net45\StackExchange.Redis.dll - - - - - - ..\packages\System.Reactive.Core.3.1.1\lib\net45\System.Reactive.Core.dll - - - ..\packages\System.Reactive.Interfaces.3.1.1\lib\net45\System.Reactive.Interfaces.dll - - - ..\packages\System.Reactive.Linq.3.1.1\lib\net45\System.Reactive.Linq.dll - - - ..\packages\System.Runtime.InteropServices.RuntimeInformation.4.0.0\lib\net45\System.Runtime.InteropServices.RuntimeInformation.dll - - - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/samples/MessageDeduplication/PointToPoint.Messages/PointToPointMessage.cs b/samples/MessageDeduplication/PointToPoint.Messages/PointToPointMessage.cs deleted file mode 100644 index fbe8c7fd5..000000000 --- a/samples/MessageDeduplication/PointToPoint.Messages/PointToPointMessage.cs +++ /dev/null @@ -1,12 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace PointToPoint.Messages -{ - public class PointToPointMessage : Message - { - public PointToPointMessage(Guid correlationId) : base(correlationId){} - public byte[] Data { get; set; } - public int SerialNumber { get; set; } - } -} diff --git a/samples/MessageDeduplication/PointToPoint.Messages/Properties/AssemblyInfo.cs b/samples/MessageDeduplication/PointToPoint.Messages/Properties/AssemblyInfo.cs deleted file mode 100644 index 70944e0b8..000000000 --- a/samples/MessageDeduplication/PointToPoint.Messages/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("PointToPoint.Messages")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("PointToPoint.Messages")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("93627298-70af-4671-827a-8da1a675580d")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/MessageDeduplication/PointToPoint.Messages/app.config b/samples/MessageDeduplication/PointToPoint.Messages/app.config deleted file mode 100644 index 884f9844f..000000000 --- a/samples/MessageDeduplication/PointToPoint.Messages/app.config +++ /dev/null @@ -1,3 +0,0 @@ - - - diff --git a/samples/MessageDeduplication/PointToPoint.Messages/packages.config b/samples/MessageDeduplication/PointToPoint.Messages/packages.config deleted file mode 100644 index 5541d6c4c..000000000 --- a/samples/MessageDeduplication/PointToPoint.Messages/packages.config +++ /dev/null @@ -1,22 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/samples/MessageDeduplication/PointToPoint.Producer/PointToPoint.Producer.csproj b/samples/MessageDeduplication/PointToPoint.Producer/PointToPoint.Producer.csproj deleted file mode 100644 index 49ebc1bcf..000000000 --- a/samples/MessageDeduplication/PointToPoint.Producer/PointToPoint.Producer.csproj +++ /dev/null @@ -1,140 +0,0 @@ - - - - - Debug - AnyCPU - {343DC117-1550-4FE1-A867-01F76CBD438C} - Exe - Properties - PointToPoint.Producer - PointToPoint.Producer - v4.5.1 - 512 - ..\ - true - - - - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - - - - ..\packages\Common.Logging.3.4.1\lib\net40\Common.Logging.dll - - - ..\packages\Common.Logging.Core.3.4.1\lib\net40\Common.Logging.Core.dll - - - ..\packages\Microsoft.Diagnostics.Tracing.EventSource.Redist.1.1.28\lib\net40\Microsoft.Diagnostics.Tracing.EventSource.dll - - - ..\packages\MongoDB.Bson.2.4.4\lib\net45\MongoDB.Bson.dll - - - ..\packages\MongoDB.Driver.2.4.4\lib\net45\MongoDB.Driver.dll - - - ..\packages\MongoDB.Driver.Core.2.4.4\lib\net45\MongoDB.Driver.Core.dll - - - ..\packages\mongocsharpdriver.2.4.4\lib\net45\MongoDB.Driver.Legacy.dll - - - ..\packages\Newtonsoft.Json.10.0.3\lib\net45\Newtonsoft.Json.dll - - - ..\packages\RabbitMQ.Client.5.0.1\lib\net451\RabbitMQ.Client.dll - - - ..\packages\ServiceConnect.5.0.8\lib\net451\ServiceConnect.dll - - - ..\packages\ServiceConnect.5.0.8\lib\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\packages\ServiceConnect.5.0.8\lib\net451\ServiceConnect.Container.Default.dll - - - ..\packages\ServiceConnect.5.0.8\lib\net451\ServiceConnect.Core.dll - - - ..\packages\ServiceConnect.Filters.MessageDeduplication.2.0.5\lib\net451\ServiceConnect.Filters.MessageDeduplication.dll - - - ..\packages\ServiceConnect.5.0.8\lib\net451\ServiceConnect.Interfaces.dll - - - ..\packages\ServiceConnect.5.0.8\lib\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\packages\ServiceConnect.5.0.8\lib\net451\ServiceConnect.Persistance.SqlServer.dll - - - ..\packages\StackExchange.Redis.1.2.6\lib\net45\StackExchange.Redis.dll - - - - - - - ..\packages\System.Reactive.Core.3.1.1\lib\net45\System.Reactive.Core.dll - - - ..\packages\System.Reactive.Interfaces.3.1.1\lib\net45\System.Reactive.Interfaces.dll - - - ..\packages\System.Reactive.Linq.3.1.1\lib\net45\System.Reactive.Linq.dll - - - ..\packages\System.Runtime.InteropServices.RuntimeInformation.4.0.0\lib\net45\System.Runtime.InteropServices.RuntimeInformation.dll - - - - - - - - - - - - - - {ddfdec3a-9546-4d50-83df-464cbfcbde82} - PointToPoint.Messages - - - - - Designer - - - - - - - \ No newline at end of file diff --git a/samples/MessageDeduplication/PointToPoint.Producer/Program.cs b/samples/MessageDeduplication/PointToPoint.Producer/Program.cs deleted file mode 100644 index e3c3237cf..000000000 --- a/samples/MessageDeduplication/PointToPoint.Producer/Program.cs +++ /dev/null @@ -1,44 +0,0 @@ -using System; -using PointToPoint.Messages; -using ServiceConnect; - -namespace PointToPoint.Producer -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Producer ***********"); - var bus = Bus.Initialize(config => - { - config.AddQueueMapping(typeof(PointToPointMessage), "MessageDeduplication.Consumer"); - config.SetHost("localhost"); - config.SetQueueName("MessageDeduplication.Producer"); - }); - - while (true) - { - Console.WriteLine("Press enter to send message"); - Console.ReadLine(); - - Console.WriteLine("Start: {0}", DateTime.Now); - - for (int i = 0; i < 1000000; i++) - { - var id = Guid.NewGuid(); - bus.Send(new PointToPointMessage(id) - { - //Data = new byte[10000], - SerialNumber = i - }); - //Console.ReadLine(); - } - - Console.WriteLine("End: {0}", DateTime.Now); - - Console.WriteLine("Sent messages"); - Console.WriteLine(""); - } - } - } -} diff --git a/samples/MessageDeduplication/PointToPoint.Producer/Properties/AssemblyInfo.cs b/samples/MessageDeduplication/PointToPoint.Producer/Properties/AssemblyInfo.cs deleted file mode 100644 index bf878b9e1..000000000 --- a/samples/MessageDeduplication/PointToPoint.Producer/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("PointToPoint.Producer")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("PointToPoint.Producer")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("2a8df913-60f3-4ee4-9025-02b3ad61d73c")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/MessageDeduplication/PointToPoint.Producer/app.config b/samples/MessageDeduplication/PointToPoint.Producer/app.config deleted file mode 100644 index 59b13f7df..000000000 --- a/samples/MessageDeduplication/PointToPoint.Producer/app.config +++ /dev/null @@ -1,4 +0,0 @@ - - - - diff --git a/samples/MessageDeduplication/PointToPoint.Producer/packages.config b/samples/MessageDeduplication/PointToPoint.Producer/packages.config deleted file mode 100644 index 5541d6c4c..000000000 --- a/samples/MessageDeduplication/PointToPoint.Producer/packages.config +++ /dev/null @@ -1,22 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/samples/Middleware/Middleware.Consumer/App.config b/samples/Middleware/Middleware.Consumer/App.config deleted file mode 100644 index d0feca6f7..000000000 --- a/samples/Middleware/Middleware.Consumer/App.config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - diff --git a/samples/Middleware/Middleware.Consumer/MessageHandler.cs b/samples/Middleware/Middleware.Consumer/MessageHandler.cs deleted file mode 100644 index 709885fbc..000000000 --- a/samples/Middleware/Middleware.Consumer/MessageHandler.cs +++ /dev/null @@ -1,16 +0,0 @@ -using System; -using Middleware.Messages; -using ServiceConnect.Interfaces; - -namespace Middleware.Consumer -{ - public class MessageHandler : IMessageHandler - { - public void Execute(MiddlewareMessage message) - { - Console.WriteLine("Inside consumer - Value = " + message.Value); - } - - public IConsumeContext Context { get; set; } - } -} \ No newline at end of file diff --git a/samples/Middleware/Middleware.Consumer/Middleware.Consumer.csproj b/samples/Middleware/Middleware.Consumer/Middleware.Consumer.csproj deleted file mode 100644 index e6d1dc5a3..000000000 --- a/samples/Middleware/Middleware.Consumer/Middleware.Consumer.csproj +++ /dev/null @@ -1,111 +0,0 @@ - - - - - Debug - AnyCPU - {0C3DBC24-B772-4DB7-8B9E-D5A96CE2BCE5} - Exe - Properties - Middleware.Consumer - Middleware.Consumer - v4.5.1 - 512 - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect.Container.StructureMap\bin\Debug\net451\ServiceConnect.Container.StructureMap.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - ..\..\..\src\ServiceConnect.Container.StructureMap\bin\Debug\net451\StructureMap.dll - - - - - - - - - - - - - - - - - - - - - - {28ECE813-5295-4077-BE01-595D168D7A0E} - Filters.Messages - - - - - \ No newline at end of file diff --git a/samples/Middleware/Middleware.Consumer/Middleware1.cs b/samples/Middleware/Middleware.Consumer/Middleware1.cs deleted file mode 100644 index 52b876021..000000000 --- a/samples/Middleware/Middleware.Consumer/Middleware1.cs +++ /dev/null @@ -1,18 +0,0 @@ -using System; -using System.Threading.Tasks; -using ServiceConnect.Interfaces; - -namespace Middleware.Consumer -{ - public class Middleware1 : IBusMiddleware - { - public ProcessMessageDelegate Next { get; set; } - - public async Task Process(IConsumeContext context, Type typeObject, Envelope envelope) - { - Console.WriteLine("Middleware 1 Start - " + typeObject.Name); - await Next(context, typeObject, envelope); - Console.WriteLine("Middleware 1 End - " + typeObject.Name); - } - } -} \ No newline at end of file diff --git a/samples/Middleware/Middleware.Consumer/Middleware2.cs b/samples/Middleware/Middleware.Consumer/Middleware2.cs deleted file mode 100644 index 00d12077f..000000000 --- a/samples/Middleware/Middleware.Consumer/Middleware2.cs +++ /dev/null @@ -1,18 +0,0 @@ -using System; -using System.Threading.Tasks; -using ServiceConnect.Interfaces; - -namespace Middleware.Consumer -{ - public class Middleware2 : IBusMiddleware - { - public ProcessMessageDelegate Next { get; set; } - - public async Task Process(IConsumeContext context, Type typeObject, Envelope envelope) - { - Console.WriteLine("Middleware 2 Start - " + typeObject.Name); - await Next(context, typeObject, envelope); - Console.WriteLine("Middleware 2 End - " + typeObject.Name); - } - } -} \ No newline at end of file diff --git a/samples/Middleware/Middleware.Consumer/Program.cs b/samples/Middleware/Middleware.Consumer/Program.cs deleted file mode 100644 index e0c9531ea..000000000 --- a/samples/Middleware/Middleware.Consumer/Program.cs +++ /dev/null @@ -1,26 +0,0 @@ -using System; -using System.Collections.Generic; -using ServiceConnect; - -namespace Middleware.Consumer -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Consumer ***********"); - var bus = Bus.Initialize(config => - { - config.SetHost("localhost"); - config.SetQueueName("Middleware.Consumer"); - config.SetNumberOfClients(10); - config.AddMiddleware(); - config.AddMiddleware(); - }); - - bus.StartConsuming(); - - Console.ReadLine(); - } - } -} diff --git a/samples/Middleware/Middleware.Consumer/Properties/AssemblyInfo.cs b/samples/Middleware/Middleware.Consumer/Properties/AssemblyInfo.cs deleted file mode 100644 index e6506c6aa..000000000 --- a/samples/Middleware/Middleware.Consumer/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("Middleware.Consumer")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("Middleware.Consumer")] -[assembly: AssemblyCopyright("Copyright © Ruffer PLC 2015")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("1da3d939-aefa-44a7-a528-65db614ef615")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/Middleware/Middleware.Messages/Middleware.Messages.csproj b/samples/Middleware/Middleware.Messages/Middleware.Messages.csproj deleted file mode 100644 index fee96eb84..000000000 --- a/samples/Middleware/Middleware.Messages/Middleware.Messages.csproj +++ /dev/null @@ -1,63 +0,0 @@ - - - - - Debug - AnyCPU - {28ECE813-5295-4077-BE01-595D168D7A0E} - Library - Properties - Middleware.Messages - Middleware.Messages - v4.5.1 - 512 - - - - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - ..\..\..\src\ServiceConnect\bin\Debug\Common.Logging.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\Common.Logging.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/samples/Middleware/Middleware.Messages/MiddlewareMessage.cs b/samples/Middleware/Middleware.Messages/MiddlewareMessage.cs deleted file mode 100644 index 00a0024a0..000000000 --- a/samples/Middleware/Middleware.Messages/MiddlewareMessage.cs +++ /dev/null @@ -1,14 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace Middleware.Messages -{ - public class MiddlewareMessage : Message - { - public MiddlewareMessage(Guid correlationId) : base(correlationId) - { - } - - public string Value { get; set; } - } -} diff --git a/samples/Middleware/Middleware.Messages/Properties/AssemblyInfo.cs b/samples/Middleware/Middleware.Messages/Properties/AssemblyInfo.cs deleted file mode 100644 index 7e85f83a6..000000000 --- a/samples/Middleware/Middleware.Messages/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("Middleware.Messages")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("Middleware.Messages")] -[assembly: AssemblyCopyright("Copyright © Ruffer PLC 2015")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("5d9cc9d5-784e-45a6-b82f-228cb45d2a07")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/Middleware/Middleware.sln b/samples/Middleware/Middleware.sln deleted file mode 100644 index d8fc672c4..000000000 --- a/samples/Middleware/Middleware.sln +++ /dev/null @@ -1,34 +0,0 @@ - -Microsoft Visual Studio Solution File, Format Version 12.00 -# Visual Studio 2013 -VisualStudioVersion = 12.0.30723.0 -MinimumVisualStudioVersion = 10.0.40219.1 -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Middleware.Producer", "Middleware\Middleware.Producer.csproj", "{F95309FA-7DC2-4AF8-9858-0B12EB4CF333}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Middleware.Consumer", "Middleware.Consumer\Middleware.Consumer.csproj", "{0C3DBC24-B772-4DB7-8B9E-D5A96CE2BCE5}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Middleware.Messages", "Middleware.Messages\Middleware.Messages.csproj", "{28ECE813-5295-4077-BE01-595D168D7A0E}" -EndProject -Global - GlobalSection(SolutionConfigurationPlatforms) = preSolution - Debug|Any CPU = Debug|Any CPU - Release|Any CPU = Release|Any CPU - EndGlobalSection - GlobalSection(ProjectConfigurationPlatforms) = postSolution - {F95309FA-7DC2-4AF8-9858-0B12EB4CF333}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {F95309FA-7DC2-4AF8-9858-0B12EB4CF333}.Debug|Any CPU.Build.0 = Debug|Any CPU - {F95309FA-7DC2-4AF8-9858-0B12EB4CF333}.Release|Any CPU.ActiveCfg = Release|Any CPU - {F95309FA-7DC2-4AF8-9858-0B12EB4CF333}.Release|Any CPU.Build.0 = Release|Any CPU - {0C3DBC24-B772-4DB7-8B9E-D5A96CE2BCE5}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {0C3DBC24-B772-4DB7-8B9E-D5A96CE2BCE5}.Debug|Any CPU.Build.0 = Debug|Any CPU - {0C3DBC24-B772-4DB7-8B9E-D5A96CE2BCE5}.Release|Any CPU.ActiveCfg = Release|Any CPU - {0C3DBC24-B772-4DB7-8B9E-D5A96CE2BCE5}.Release|Any CPU.Build.0 = Release|Any CPU - {28ECE813-5295-4077-BE01-595D168D7A0E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {28ECE813-5295-4077-BE01-595D168D7A0E}.Debug|Any CPU.Build.0 = Debug|Any CPU - {28ECE813-5295-4077-BE01-595D168D7A0E}.Release|Any CPU.ActiveCfg = Release|Any CPU - {28ECE813-5295-4077-BE01-595D168D7A0E}.Release|Any CPU.Build.0 = Release|Any CPU - EndGlobalSection - GlobalSection(SolutionProperties) = preSolution - HideSolutionNode = FALSE - EndGlobalSection -EndGlobal diff --git a/samples/Middleware/Middleware/App.config b/samples/Middleware/Middleware/App.config deleted file mode 100644 index d0feca6f7..000000000 --- a/samples/Middleware/Middleware/App.config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - diff --git a/samples/Middleware/Middleware/Middleware.Producer.csproj b/samples/Middleware/Middleware/Middleware.Producer.csproj deleted file mode 100644 index 83e30eb94..000000000 --- a/samples/Middleware/Middleware/Middleware.Producer.csproj +++ /dev/null @@ -1,108 +0,0 @@ - - - - - Debug - AnyCPU - {F95309FA-7DC2-4AF8-9858-0B12EB4CF333} - Exe - Properties - Middleware - Middleware - v4.5.1 - 512 - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect.Container.StructureMap\bin\Debug\net451\ServiceConnect.Container.StructureMap.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - ..\..\..\src\ServiceConnect.Container.StructureMap\bin\Debug\net451\StructureMap.dll - - - - - - - - - - - - - - - - - - - {28ECE813-5295-4077-BE01-595D168D7A0E} - Filters.Messages - - - - - \ No newline at end of file diff --git a/samples/Middleware/Middleware/Program.cs b/samples/Middleware/Middleware/Program.cs deleted file mode 100644 index 434f37603..000000000 --- a/samples/Middleware/Middleware/Program.cs +++ /dev/null @@ -1,40 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using System.Text; -using System.Threading.Tasks; -using Middleware.Messages; -using ServiceConnect; -using ServiceConnect.Container.StructureMap; -using StructureMap; - -namespace Middleware -{ - class Program - { - static void Main(string[] args) - { - var container = new Container(); - - Console.WriteLine("*********** Producer ***********"); - var bus = Bus.Initialize(config => - { - config.SetHost("localhost"); - config.SetContainer(container); - config.SetQueueName("Middleware.Producer"); - config.SetNumberOfClients(10); - config.AutoStartConsuming = false; - config.ScanForMesssageHandlers = false; - }); - - while (true) - { - bus.Send("Middleware.Consumer", new MiddlewareMessage(Guid.NewGuid()) - { - Value = new Random().Next().ToString() - }); - Console.ReadLine(); - } - } - } -} diff --git a/samples/Middleware/Middleware/Properties/AssemblyInfo.cs b/samples/Middleware/Middleware/Properties/AssemblyInfo.cs deleted file mode 100644 index 1339836e6..000000000 --- a/samples/Middleware/Middleware/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("Middleware")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("Middleware")] -[assembly: AssemblyCopyright("Copyright © Ruffer PLC 2015")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("167d34a2-a6e0-4aae-902b-b5bf700d47f7")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/NetCoreRequestReply/.vs/NetCoreRequestReply/v15/Server/sqlite3/db.lock b/samples/NetCoreRequestReply/.vs/NetCoreRequestReply/v15/Server/sqlite3/db.lock deleted file mode 100644 index e69de29bb..000000000 diff --git a/samples/NetCoreRequestReply/.vs/NetCoreRequestReply/v15/Server/sqlite3/storage.ide b/samples/NetCoreRequestReply/.vs/NetCoreRequestReply/v15/Server/sqlite3/storage.ide deleted file mode 100644 index 7469e5fe2..000000000 Binary files a/samples/NetCoreRequestReply/.vs/NetCoreRequestReply/v15/Server/sqlite3/storage.ide and /dev/null differ diff --git a/samples/NetCoreRequestReply/NetCoreRequestReply.sln b/samples/NetCoreRequestReply/NetCoreRequestReply.sln deleted file mode 100644 index 369a083cf..000000000 --- a/samples/NetCoreRequestReply/NetCoreRequestReply.sln +++ /dev/null @@ -1,37 +0,0 @@ - -Microsoft Visual Studio Solution File, Format Version 12.00 -# Visual Studio 15 -VisualStudioVersion = 15.0.27130.2020 -MinimumVisualStudioVersion = 10.0.40219.1 -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "RequestResponse.Requestor", "RequestResponse.Requestor\RequestResponse.Requestor.csproj", "{2C8E0035-EB6B-4939-90A8-17E3340DB9C1}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "RequestResponse.Responder", "RequestResponse.Responder\RequestResponse.Responder.csproj", "{A4C7D97F-5ABB-4CD8-B7F2-7C4FC13B00D1}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "RequestRepsonse.Messages", "RequestRepsonse.Messages\RequestRepsonse.Messages.csproj", "{BBD303B0-64B5-40ED-839F-5B7F26CEB66D}" -EndProject -Global - GlobalSection(SolutionConfigurationPlatforms) = preSolution - Debug|Any CPU = Debug|Any CPU - Release|Any CPU = Release|Any CPU - EndGlobalSection - GlobalSection(ProjectConfigurationPlatforms) = postSolution - {2C8E0035-EB6B-4939-90A8-17E3340DB9C1}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {2C8E0035-EB6B-4939-90A8-17E3340DB9C1}.Debug|Any CPU.Build.0 = Debug|Any CPU - {2C8E0035-EB6B-4939-90A8-17E3340DB9C1}.Release|Any CPU.ActiveCfg = Release|Any CPU - {2C8E0035-EB6B-4939-90A8-17E3340DB9C1}.Release|Any CPU.Build.0 = Release|Any CPU - {A4C7D97F-5ABB-4CD8-B7F2-7C4FC13B00D1}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {A4C7D97F-5ABB-4CD8-B7F2-7C4FC13B00D1}.Debug|Any CPU.Build.0 = Debug|Any CPU - {A4C7D97F-5ABB-4CD8-B7F2-7C4FC13B00D1}.Release|Any CPU.ActiveCfg = Release|Any CPU - {A4C7D97F-5ABB-4CD8-B7F2-7C4FC13B00D1}.Release|Any CPU.Build.0 = Release|Any CPU - {BBD303B0-64B5-40ED-839F-5B7F26CEB66D}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {BBD303B0-64B5-40ED-839F-5B7F26CEB66D}.Debug|Any CPU.Build.0 = Debug|Any CPU - {BBD303B0-64B5-40ED-839F-5B7F26CEB66D}.Release|Any CPU.ActiveCfg = Release|Any CPU - {BBD303B0-64B5-40ED-839F-5B7F26CEB66D}.Release|Any CPU.Build.0 = Release|Any CPU - EndGlobalSection - GlobalSection(SolutionProperties) = preSolution - HideSolutionNode = FALSE - EndGlobalSection - GlobalSection(ExtensibilityGlobals) = postSolution - SolutionGuid = {F0AD323A-41EE-4714-BE1F-4771270C19AC} - EndGlobalSection -EndGlobal diff --git a/samples/NetCoreRequestReply/NetCoreRequestReply/NetCoreRequestReply.csproj b/samples/NetCoreRequestReply/NetCoreRequestReply/NetCoreRequestReply.csproj deleted file mode 100644 index ce1697ae8..000000000 --- a/samples/NetCoreRequestReply/NetCoreRequestReply/NetCoreRequestReply.csproj +++ /dev/null @@ -1,8 +0,0 @@ - - - - Exe - netcoreapp2.0 - - - diff --git a/samples/NetCoreRequestReply/NetCoreRequestReply/Program.cs b/samples/NetCoreRequestReply/NetCoreRequestReply/Program.cs deleted file mode 100644 index 34d1c72b1..000000000 --- a/samples/NetCoreRequestReply/NetCoreRequestReply/Program.cs +++ /dev/null @@ -1,12 +0,0 @@ -using System; - -namespace NetCoreRequestReply -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("Hello World!"); - } - } -} diff --git a/samples/NetCoreRequestReply/RequestRepsonse.Messages/RequestMessage.cs b/samples/NetCoreRequestReply/RequestRepsonse.Messages/RequestMessage.cs deleted file mode 100644 index f2388c9cb..000000000 --- a/samples/NetCoreRequestReply/RequestRepsonse.Messages/RequestMessage.cs +++ /dev/null @@ -1,12 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace RequestRepsonse.Messages -{ - public class RequestMessage : Message - { - public RequestMessage(Guid correlationId) : base(correlationId) - { - } - } -} diff --git a/samples/NetCoreRequestReply/RequestRepsonse.Messages/RequestRepsonse.Messages.csproj b/samples/NetCoreRequestReply/RequestRepsonse.Messages/RequestRepsonse.Messages.csproj deleted file mode 100644 index e0252baae..000000000 --- a/samples/NetCoreRequestReply/RequestRepsonse.Messages/RequestRepsonse.Messages.csproj +++ /dev/null @@ -1,11 +0,0 @@ - - - - netcoreapp2.0 - - - - - - - diff --git a/samples/NetCoreRequestReply/RequestRepsonse.Messages/ResponseMessage.cs b/samples/NetCoreRequestReply/RequestRepsonse.Messages/ResponseMessage.cs deleted file mode 100644 index 7c9a1bc34..000000000 --- a/samples/NetCoreRequestReply/RequestRepsonse.Messages/ResponseMessage.cs +++ /dev/null @@ -1,12 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace RequestRepsonse.Messages -{ - public class ResponseMessage : Message - { - public ResponseMessage(Guid correlationId) : base(correlationId) - { - } - } -} diff --git a/samples/NetCoreRequestReply/RequestResponse.Requestor/Program.cs b/samples/NetCoreRequestReply/RequestResponse.Requestor/Program.cs deleted file mode 100644 index 2d2f2a192..000000000 --- a/samples/NetCoreRequestReply/RequestResponse.Requestor/Program.cs +++ /dev/null @@ -1,30 +0,0 @@ -using System; -using RequestRepsonse.Messages; -using ServiceConnect; - -namespace RequestResponse.Requestor -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Requestor ***********"); - - var bus = Bus.Initialize(config => - { - config.SetQueueName("NetCoreRequestor"); - }); - - while (true) - { - Console.WriteLine("Press enter to send messages"); - Console.ReadLine(); - - var id = Guid.NewGuid(); - Console.WriteLine("Sending async message - {0}", id); - bus.SendRequest("NetCoreResponder", new RequestMessage(id), r => Console.WriteLine("Sent async message reply - {0}", r.CorrelationId)); - Console.WriteLine(); - } - } - } -} diff --git a/samples/NetCoreRequestReply/RequestResponse.Requestor/RequestResponse.Requestor.csproj b/samples/NetCoreRequestReply/RequestResponse.Requestor/RequestResponse.Requestor.csproj deleted file mode 100644 index 39bc5c4aa..000000000 --- a/samples/NetCoreRequestReply/RequestResponse.Requestor/RequestResponse.Requestor.csproj +++ /dev/null @@ -1,16 +0,0 @@ - - - - Exe - netcoreapp2.0 - - - - - - - - - - - diff --git a/samples/NetCoreRequestReply/RequestResponse.Responder/Program.cs b/samples/NetCoreRequestReply/RequestResponse.Responder/Program.cs deleted file mode 100644 index ec2e4a23f..000000000 --- a/samples/NetCoreRequestReply/RequestResponse.Responder/Program.cs +++ /dev/null @@ -1,20 +0,0 @@ -using System; -using ServiceConnect; - -namespace RequestResponse.Responder -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Responder ***********"); - - Bus.Initialize(x => - { - x.SetQueueName("NetCoreResponder"); - }); - - Console.ReadLine(); - } - } -} diff --git a/samples/NetCoreRequestReply/RequestResponse.Responder/RequestMessageHandler.cs b/samples/NetCoreRequestReply/RequestResponse.Responder/RequestMessageHandler.cs deleted file mode 100644 index 70f06b789..000000000 --- a/samples/NetCoreRequestReply/RequestResponse.Responder/RequestMessageHandler.cs +++ /dev/null @@ -1,22 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Text; -using RequestRepsonse.Messages; -using ServiceConnect.Interfaces; - -namespace RequestResponse.Responder -{ - public class RequestMessageHandler : IMessageHandler - { - public IConsumeContext Context { get; set; } - - public void Execute(RequestMessage message) - { - Console.WriteLine("Received message, sending reply - {0}", message.CorrelationId); - Context.Reply(new ResponseMessage(message.CorrelationId), new Dictionary - { - {"Authenticated", (DateTime.Now.Ticks % 2 == 0).ToString()} - }); - } - } -} diff --git a/samples/NetCoreRequestReply/RequestResponse.Responder/RequestResponse.Responder.csproj b/samples/NetCoreRequestReply/RequestResponse.Responder/RequestResponse.Responder.csproj deleted file mode 100644 index 39bc5c4aa..000000000 --- a/samples/NetCoreRequestReply/RequestResponse.Responder/RequestResponse.Responder.csproj +++ /dev/null @@ -1,16 +0,0 @@ - - - - Exe - netcoreapp2.0 - - - - - - - - - - - diff --git a/samples/NetCoreTest/NetCoreTest.sln b/samples/NetCoreTest/NetCoreTest.sln deleted file mode 100644 index 7b80bc227..000000000 --- a/samples/NetCoreTest/NetCoreTest.sln +++ /dev/null @@ -1,63 +0,0 @@ - -Microsoft Visual Studio Solution File, Format Version 12.00 -# Visual Studio Version 17 -VisualStudioVersion = 17.5.33530.505 -MinimumVisualStudioVersion = 10.0.40219.1 -Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{5BF13081-3752-4631-8DED-E5F8E43F9F83}" -EndProject -Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "NetCoreTest.Messages", "src\NetCoreTest.Messages\NetCoreTest.Messages.csproj", "{279B0ED9-D201-404E-8626-EEEA5562DA7A}" -EndProject -Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "NetCoreTest.Producer", "src\NetCoreTest.Producer\NetCoreTest.Producer.csproj", "{B4A48885-8CB9-4D9B-AB45-A02D040B901D}" -EndProject -Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "NetCoreTest.Consumer", "src\NetCoreTest.Consumer\NetCoreTest.Consumer.csproj", "{36047028-991E-4A28-A916-39DD860C36F8}" -EndProject -Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ServiceConnect.Interfaces", "..\..\src\ServiceConnect.Interfaces\ServiceConnect.Interfaces.csproj", "{6B9A4C1F-75C1-42AB-82F7-DB468401B582}" -EndProject -Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ServiceConnect", "..\..\src\ServiceConnect\ServiceConnect.csproj", "{4EBD0403-052E-48D1-88CD-AA3BBC1AF78B}" -EndProject -Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ServiceConnect.Container.StructureMap", "..\..\src\ServiceConnect.Container.StructureMap\ServiceConnect.Container.StructureMap.csproj", "{95745646-EB38-48AF-ABBF-E06910F4FB29}" -EndProject -Global - GlobalSection(SolutionConfigurationPlatforms) = preSolution - Debug|Any CPU = Debug|Any CPU - Release|Any CPU = Release|Any CPU - EndGlobalSection - GlobalSection(ProjectConfigurationPlatforms) = postSolution - {279B0ED9-D201-404E-8626-EEEA5562DA7A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {279B0ED9-D201-404E-8626-EEEA5562DA7A}.Debug|Any CPU.Build.0 = Debug|Any CPU - {279B0ED9-D201-404E-8626-EEEA5562DA7A}.Release|Any CPU.ActiveCfg = Release|Any CPU - {279B0ED9-D201-404E-8626-EEEA5562DA7A}.Release|Any CPU.Build.0 = Release|Any CPU - {B4A48885-8CB9-4D9B-AB45-A02D040B901D}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {B4A48885-8CB9-4D9B-AB45-A02D040B901D}.Debug|Any CPU.Build.0 = Debug|Any CPU - {B4A48885-8CB9-4D9B-AB45-A02D040B901D}.Release|Any CPU.ActiveCfg = Release|Any CPU - {B4A48885-8CB9-4D9B-AB45-A02D040B901D}.Release|Any CPU.Build.0 = Release|Any CPU - {36047028-991E-4A28-A916-39DD860C36F8}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {36047028-991E-4A28-A916-39DD860C36F8}.Debug|Any CPU.Build.0 = Debug|Any CPU - {36047028-991E-4A28-A916-39DD860C36F8}.Release|Any CPU.ActiveCfg = Release|Any CPU - {36047028-991E-4A28-A916-39DD860C36F8}.Release|Any CPU.Build.0 = Release|Any CPU - {6B9A4C1F-75C1-42AB-82F7-DB468401B582}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {6B9A4C1F-75C1-42AB-82F7-DB468401B582}.Debug|Any CPU.Build.0 = Debug|Any CPU - {6B9A4C1F-75C1-42AB-82F7-DB468401B582}.Release|Any CPU.ActiveCfg = Release|Any CPU - {6B9A4C1F-75C1-42AB-82F7-DB468401B582}.Release|Any CPU.Build.0 = Release|Any CPU - {4EBD0403-052E-48D1-88CD-AA3BBC1AF78B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {4EBD0403-052E-48D1-88CD-AA3BBC1AF78B}.Debug|Any CPU.Build.0 = Debug|Any CPU - {4EBD0403-052E-48D1-88CD-AA3BBC1AF78B}.Release|Any CPU.ActiveCfg = Release|Any CPU - {4EBD0403-052E-48D1-88CD-AA3BBC1AF78B}.Release|Any CPU.Build.0 = Release|Any CPU - {95745646-EB38-48AF-ABBF-E06910F4FB29}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {95745646-EB38-48AF-ABBF-E06910F4FB29}.Debug|Any CPU.Build.0 = Debug|Any CPU - {95745646-EB38-48AF-ABBF-E06910F4FB29}.Release|Any CPU.ActiveCfg = Release|Any CPU - {95745646-EB38-48AF-ABBF-E06910F4FB29}.Release|Any CPU.Build.0 = Release|Any CPU - EndGlobalSection - GlobalSection(SolutionProperties) = preSolution - HideSolutionNode = FALSE - EndGlobalSection - GlobalSection(NestedProjects) = preSolution - {279B0ED9-D201-404E-8626-EEEA5562DA7A} = {5BF13081-3752-4631-8DED-E5F8E43F9F83} - {B4A48885-8CB9-4D9B-AB45-A02D040B901D} = {5BF13081-3752-4631-8DED-E5F8E43F9F83} - {36047028-991E-4A28-A916-39DD860C36F8} = {5BF13081-3752-4631-8DED-E5F8E43F9F83} - {6B9A4C1F-75C1-42AB-82F7-DB468401B582} = {5BF13081-3752-4631-8DED-E5F8E43F9F83} - EndGlobalSection - GlobalSection(ExtensibilityGlobals) = postSolution - SolutionGuid = {25D4D2C0-BF08-468B-8B0B-B05B0567C929} - EndGlobalSection -EndGlobal diff --git a/samples/NetCoreTest/src/NetCoreTest.Consumer/NetCoreTest.Consumer.csproj b/samples/NetCoreTest/src/NetCoreTest.Consumer/NetCoreTest.Consumer.csproj deleted file mode 100644 index 1aabbe392..000000000 --- a/samples/NetCoreTest/src/NetCoreTest.Consumer/NetCoreTest.Consumer.csproj +++ /dev/null @@ -1,20 +0,0 @@ - - - - net6.0 - NetCoreTest.Consumer - Exe - NetCoreTest.Consumer - false - false - false - - - - - - - - - - diff --git a/samples/NetCoreTest/src/NetCoreTest.Consumer/NetCoreTestMessageHandler.cs b/samples/NetCoreTest/src/NetCoreTest.Consumer/NetCoreTestMessageHandler.cs deleted file mode 100644 index 6846a58e2..000000000 --- a/samples/NetCoreTest/src/NetCoreTest.Consumer/NetCoreTestMessageHandler.cs +++ /dev/null @@ -1,17 +0,0 @@ -using System; -using System.Threading; -using NetCoreTest.Messages; -using ServiceConnect.Interfaces; - -namespace NetCoreTest.Consumer -{ - public class NetCoreTestMessageHandler : IMessageHandler - { - public void Execute(NetCoreTestMessage command) - { - Console.WriteLine("{0}: Consumer 1 Received Message - {1}", Thread.CurrentThread.ManagedThreadId, command.CorrelationId); - } - - public IConsumeContext Context { get; set; } - } -} diff --git a/samples/NetCoreTest/src/NetCoreTest.Consumer/Program.cs b/samples/NetCoreTest/src/NetCoreTest.Consumer/Program.cs deleted file mode 100644 index 743dffee7..000000000 --- a/samples/NetCoreTest/src/NetCoreTest.Consumer/Program.cs +++ /dev/null @@ -1,29 +0,0 @@ -using System; -using ServiceConnect; -using ServiceConnect.Container.Default; -using ServiceConnect.Container.StructureMap; -using StructureMap; - -namespace NetCoreTest.Consumer -{ - public class Program - { - public static void Main(string[] args) - { - Console.WriteLine("*********** Consumer ***********"); - - var bus = Bus.Initialize(config => - { - config.SetNumberOfClients(1); - config.SetContainerType(); - config.ScanForMesssageHandlers = true; - config.SetHost("localhost"); - }); - bus.StartConsuming(); - - Console.ReadLine(); - - bus.Dispose(); - } - } -} diff --git a/samples/NetCoreTest/src/NetCoreTest.Consumer/Properties/AssemblyInfo.cs b/samples/NetCoreTest/src/NetCoreTest.Consumer/Properties/AssemblyInfo.cs deleted file mode 100644 index 4fc8f3674..000000000 --- a/samples/NetCoreTest/src/NetCoreTest.Consumer/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,19 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("NetCoreTest.Consumer")] -[assembly: AssemblyTrademark("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("36047028-991e-4a28-a916-39dd860c36f8")] diff --git a/samples/NetCoreTest/src/NetCoreTest.Messages/NetCoreTest.Messages.csproj b/samples/NetCoreTest/src/NetCoreTest.Messages/NetCoreTest.Messages.csproj deleted file mode 100644 index a6f2f6ddb..000000000 --- a/samples/NetCoreTest/src/NetCoreTest.Messages/NetCoreTest.Messages.csproj +++ /dev/null @@ -1,18 +0,0 @@ - - - - net6.0 - NetCoreTest.Messages - NetCoreTest.Messages - false - false - false - - - - - - - - - diff --git a/samples/NetCoreTest/src/NetCoreTest.Messages/NetCoreTestMessage.cs b/samples/NetCoreTest/src/NetCoreTest.Messages/NetCoreTestMessage.cs deleted file mode 100644 index c3bbefac0..000000000 --- a/samples/NetCoreTest/src/NetCoreTest.Messages/NetCoreTestMessage.cs +++ /dev/null @@ -1,12 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace NetCoreTest.Messages -{ - public class NetCoreTestMessage : Message - { - public NetCoreTestMessage(Guid correlationId) : base(correlationId){ } - public byte[] Data { get; set; } - public int SerialNumber { get; set; } - } -} diff --git a/samples/NetCoreTest/src/NetCoreTest.Messages/Properties/AssemblyInfo.cs b/samples/NetCoreTest/src/NetCoreTest.Messages/Properties/AssemblyInfo.cs deleted file mode 100644 index b2ababce0..000000000 --- a/samples/NetCoreTest/src/NetCoreTest.Messages/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,19 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("NetCoreTest.Messages")] -[assembly: AssemblyTrademark("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("279b0ed9-d201-404e-8626-eeea5562da7a")] diff --git a/samples/NetCoreTest/src/NetCoreTest.Producer/NetCoreTest.Producer.csproj b/samples/NetCoreTest/src/NetCoreTest.Producer/NetCoreTest.Producer.csproj deleted file mode 100644 index 9df82dcdc..000000000 --- a/samples/NetCoreTest/src/NetCoreTest.Producer/NetCoreTest.Producer.csproj +++ /dev/null @@ -1,19 +0,0 @@ - - - - net6.0 - NetCoreTest.Producer - Exe - NetCoreTest.Producer - false - false - false - - - - - - - - - diff --git a/samples/NetCoreTest/src/NetCoreTest.Producer/Program.cs b/samples/NetCoreTest/src/NetCoreTest.Producer/Program.cs deleted file mode 100644 index 4b64ee13f..000000000 --- a/samples/NetCoreTest/src/NetCoreTest.Producer/Program.cs +++ /dev/null @@ -1,41 +0,0 @@ -using System; -using NetCoreTest.Messages; -using ServiceConnect; - -namespace NetCoreTest.Producer -{ - public class Program - { - public static void Main(string[] args) - { - Console.WriteLine("*********** Producer ***********"); - var bus = Bus.Initialize(config => - { - config.AddQueueMapping(typeof(NetCoreTestMessage), "NetCoreTest.Consumer"); - config.SetHost("localhost"); - }); - - while (true) - { - Console.WriteLine("Press enter to send message"); - Console.ReadLine(); - - Console.WriteLine("Start: {0}", DateTime.Now); - - for (int i = 0; i < 100000; i++) - { - var id = Guid.NewGuid(); - bus.Send("NetCoreTest.Consumer", new NetCoreTestMessage(id) - { - Data = new byte[10000], - SerialNumber = i - }); - //Console.ReadLine(); - } - - Console.WriteLine("Sent messages"); - Console.WriteLine(""); - } - } - } -} diff --git a/samples/NetCoreTest/src/NetCoreTest.Producer/Properties/AssemblyInfo.cs b/samples/NetCoreTest/src/NetCoreTest.Producer/Properties/AssemblyInfo.cs deleted file mode 100644 index c76d5d225..000000000 --- a/samples/NetCoreTest/src/NetCoreTest.Producer/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,19 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("NetCoreTest.Producer")] -[assembly: AssemblyTrademark("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("b4a48885-8cb9-4d9b-ab45-a02d040b901d")] diff --git a/samples/NetCoreTest/src/NetCoreTest/Class1.cs b/samples/NetCoreTest/src/NetCoreTest/Class1.cs deleted file mode 100644 index 7fa3597d4..000000000 --- a/samples/NetCoreTest/src/NetCoreTest/Class1.cs +++ /dev/null @@ -1,14 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using System.Threading.Tasks; - -namespace NetCoreTest -{ - public class Class1 - { - public Class1() - { - } - } -} diff --git a/samples/NetCoreTest/src/NetCoreTest/NetCoreTest.xproj b/samples/NetCoreTest/src/NetCoreTest/NetCoreTest.xproj deleted file mode 100644 index e210d69d5..000000000 --- a/samples/NetCoreTest/src/NetCoreTest/NetCoreTest.xproj +++ /dev/null @@ -1,21 +0,0 @@ - - - - 14.0 - $(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion) - - - - - 65f0de2a-e169-44be-9476-316ad54c98d5 - NetCoreTest - .\obj - .\bin\ - v4.5.2 - - - - 2.0 - - - diff --git a/samples/NetCoreTest/src/NetCoreTest/Properties/AssemblyInfo.cs b/samples/NetCoreTest/src/NetCoreTest/Properties/AssemblyInfo.cs deleted file mode 100644 index d5cafca9e..000000000 --- a/samples/NetCoreTest/src/NetCoreTest/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,19 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("NetCoreTest")] -[assembly: AssemblyTrademark("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("65f0de2a-e169-44be-9476-316ad54c98d5")] diff --git a/samples/NetCoreTest/src/NetCoreTest/project.json b/samples/NetCoreTest/src/NetCoreTest/project.json deleted file mode 100644 index 864b9a5f3..000000000 --- a/samples/NetCoreTest/src/NetCoreTest/project.json +++ /dev/null @@ -1,13 +0,0 @@ -{ - "version": "1.0.0-*", - - "dependencies": { - "NETStandard.Library": "1.6.0" - }, - - "frameworks": { - "netstandard1.6": { - "imports": "dnxcore50" - } - } -} diff --git a/samples/NetCoreTest/src/NetCoreTest/project.lock.json b/samples/NetCoreTest/src/NetCoreTest/project.lock.json deleted file mode 100644 index 9a8076eb6..000000000 --- a/samples/NetCoreTest/src/NetCoreTest/project.lock.json +++ /dev/null @@ -1,4026 +0,0 @@ -{ - "locked": false, - "version": 2, - 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- - $(BuildDependsOn); - BuildPackage; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - diff --git a/samples/PointToPoint - Copy/PointToPoint.Consumer/PointToPoint.Consumer.csproj b/samples/PointToPoint - Copy/PointToPoint.Consumer/PointToPoint.Consumer.csproj deleted file mode 100644 index 3366701d3..000000000 --- a/samples/PointToPoint - Copy/PointToPoint.Consumer/PointToPoint.Consumer.csproj +++ /dev/null @@ -1,178 +0,0 @@ - - - - - Debug - AnyCPU - {17FC8160-EBE8-443A-9A58-3CFBF7DE0E0A} - Exe - Properties - PointToPoint.Consumer - PointToPoint.Consumer - v4.5.1 - 512 - ..\ - true - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - ..\packages\BouncyCastle.1.8.1\lib\BouncyCastle.Crypto.dll - True - - - ..\packages\Common.Logging.3.4.0-Beta2\lib\net40\Common.Logging.dll - True - - - ..\packages\Common.Logging.Core.3.4.0-Beta2\lib\net40\Common.Logging.Core.dll - 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- - ..\packages\Microsoft.AspNet.WebApi.Client.5.2.3\lib\net45\System.Net.Http.Formatting.dll - True - - - ..\packages\ServiceConnect.Filters.MessageDeduplication.2.0.2-pre\lib\net451\System.Runtime.InteropServices.RuntimeInformation.dll - True - - - - - - - - - - - - - - - Designer - - - - - - {ddfdec3a-9546-4d50-83df-464cbfcbde82} - PointToPoint.Messages - - - - - - \ No newline at end of file diff --git a/samples/PointToPoint - Copy/PointToPoint.Consumer/PointToPointMessageHandler.cs b/samples/PointToPoint - Copy/PointToPoint.Consumer/PointToPointMessageHandler.cs deleted file mode 100644 index 756bac2f4..000000000 --- a/samples/PointToPoint - Copy/PointToPoint.Consumer/PointToPointMessageHandler.cs +++ /dev/null @@ -1,18 +0,0 @@ -using System; -using System.Threading; -using PointToPoint.Messages; -using ServiceConnect.Interfaces; - -namespace PointToPoint.Consumer -{ - public class PointToPointMessageHandler : IMessageHandler - { - public void Execute(PointToPointMessage command) - { - //Thread.Sleep(100); - //Console.WriteLine("{0}: Consumer 1 Received Message - {1}", Thread.CurrentThread.ManagedThreadId, command.CorrelationId); - } - - public IConsumeContext Context { get; set; } - } -} \ No newline at end of file diff --git a/samples/PointToPoint - Copy/PointToPoint.Consumer/Program.cs b/samples/PointToPoint - Copy/PointToPoint.Consumer/Program.cs deleted file mode 100644 index 99e052409..000000000 --- a/samples/PointToPoint - Copy/PointToPoint.Consumer/Program.cs +++ /dev/null @@ -1,62 +0,0 @@ -using System; -using System.Configuration; -using System.Security.Authentication; -using System.Security.Cryptography.X509Certificates; -using Ruffer.Security.Filters; -using ServiceConnect; -using ServiceConnect.Container.Default; -using ServiceConnect.Container.StructureMap; -using ServiceConnect.Filters.MessageDeduplication; -using ServiceConnect.Filters.MessageDeduplication.Filters; -using StructureMap; - -namespace PointToPoint.Consumer -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Consumer ***********"); - - IContainer myContainer = new StructureMap.Container(); - - var depdulicationSettings = DeduplicationFilterSettings.Instance; - depdulicationSettings.ConnectionStringMongoDb = ConfigurationManager.AppSettings["ServiceConnectPersistorConnectionString"]; - depdulicationSettings.DatabaseNameMongoDb = "MessageDeduplication"; - depdulicationSettings.CollectionNameMongoDb = ConfigurationManager.AppSettings["EndPoint"]; - depdulicationSettings.MsgCleanupIntervalMinutes = 6 * 60; // Every 6 hours - depdulicationSettings.MsgExpiryHours = 7 * 24; // 1 week - - var bus = Bus.Initialize(config => - { - config.TransportSettings.SslEnabled = true; - config.TransportSettings.Certs = new X509Certificate2Collection - { - new X509Certificate2(Convert.FromBase64String(ConfigurationManager.AppSettings["RabbitMqCertBase64"]), - ConfigurationManager.AppSettings["RabbitMqCertPassword"]) - }; - config.TransportSettings.Username = ConfigurationManager.AppSettings["RabbitMQUsername"]; - config.TransportSettings.Password = ConfigurationManager.AppSettings["RabbitMqPassword"]; - config.TransportSettings.ServerName = ConfigurationManager.AppSettings["RabbitMqHostname"]; - config.TransportSettings.Version = SslProtocols.Default; - config.ScanForMesssageHandlers = true; - config.SetNumberOfClients(20); - config.SetContainer(myContainer); - config.SetAuditingEnabled(true); - - config.BeforeConsumingFilters.Add(typeof(IncomingDeduplicationFilterMongoDbSsl)); - config.BeforeConsumingFilters.Add(typeof(TokenDecryptFilter)); - config.AfterConsumingFilters.Add(typeof(OutgoingDeduplicationFilterMongoDbSsl)); - config.OutgoingFilters.Add(typeof(TokenInjectTokenFilter)); - - config.TransportSettings.MaxRetries = 0; - - }); - bus.StartConsuming(); - - Console.ReadLine(); - - bus.Dispose(); - } - } -} diff --git a/samples/PointToPoint - Copy/PointToPoint.Consumer/Properties/AssemblyInfo.cs b/samples/PointToPoint - Copy/PointToPoint.Consumer/Properties/AssemblyInfo.cs deleted file mode 100644 index 60c32acc8..000000000 --- a/samples/PointToPoint - Copy/PointToPoint.Consumer/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("PointToPoint.Consumer")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("PointToPoint.Consumer")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("f5ea2abb-9d0d-47b5-a51f-bc80d0a04ea4")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/PointToPoint - Copy/PointToPoint.Consumer/packages.config b/samples/PointToPoint - Copy/PointToPoint.Consumer/packages.config deleted file mode 100644 index b7be7c6aa..000000000 --- a/samples/PointToPoint - Copy/PointToPoint.Consumer/packages.config +++ /dev/null @@ -1,21 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/samples/PointToPoint - Copy/PointToPoint.Messages/PointToPoint.Messages.csproj b/samples/PointToPoint - Copy/PointToPoint.Messages/PointToPoint.Messages.csproj deleted file mode 100644 index 339929015..000000000 --- a/samples/PointToPoint - Copy/PointToPoint.Messages/PointToPoint.Messages.csproj +++ /dev/null @@ -1,64 +0,0 @@ - - - - - Debug - AnyCPU - {DDFDEC3A-9546-4D50-83DF-464CBFCBDE82} - Library - Properties - PointToPoint.Messages - PointToPoint.Messages - v4.5.1 - 512 - ..\ - true - - - - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/samples/PointToPoint - Copy/PointToPoint.Messages/PointToPointMessage.cs b/samples/PointToPoint - Copy/PointToPoint.Messages/PointToPointMessage.cs deleted file mode 100644 index bd3a08313..000000000 --- a/samples/PointToPoint - Copy/PointToPoint.Messages/PointToPointMessage.cs +++ /dev/null @@ -1,10 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace PointToPoint.Messages -{ - public class PointToPointMessage : Message - { - public PointToPointMessage(Guid correlationId) : base(correlationId){} - } -} diff --git a/samples/PointToPoint - Copy/PointToPoint.Messages/Properties/AssemblyInfo.cs b/samples/PointToPoint - Copy/PointToPoint.Messages/Properties/AssemblyInfo.cs deleted file mode 100644 index 70944e0b8..000000000 --- a/samples/PointToPoint - Copy/PointToPoint.Messages/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("PointToPoint.Messages")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("PointToPoint.Messages")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("93627298-70af-4671-827a-8da1a675580d")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/PointToPoint - Copy/PointToPoint.Messages/app.config b/samples/PointToPoint - Copy/PointToPoint.Messages/app.config deleted file mode 100644 index 884f9844f..000000000 --- a/samples/PointToPoint - Copy/PointToPoint.Messages/app.config +++ /dev/null @@ -1,3 +0,0 @@ - - - diff --git a/samples/PointToPoint - Copy/PointToPoint.Producer/PointToPoint.Producer.csproj b/samples/PointToPoint - Copy/PointToPoint.Producer/PointToPoint.Producer.csproj deleted file mode 100644 index f17d008da..000000000 --- a/samples/PointToPoint - Copy/PointToPoint.Producer/PointToPoint.Producer.csproj +++ /dev/null @@ -1,178 +0,0 @@ - - - - - Debug - AnyCPU - {343DC117-1550-4FE1-A867-01F76CBD438C} - Exe - Properties - PointToPoint.Producer - PointToPoint.Producer - v4.5.1 - 512 - ..\ - true - - - - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - - - - ..\packages\BouncyCastle.1.8.1\lib\BouncyCastle.Crypto.dll - True - - - ..\packages\Common.Logging.3.4.0-Beta2\lib\net40\Common.Logging.dll - True - - - ..\packages\Common.Logging.Core.3.4.0-Beta2\lib\net40\Common.Logging.Core.dll - True - - - ..\packages\jose-jwt.1.9.2\lib\4.0\jose-jwt.dll - True - - - ..\packages\ServiceConnect.Filters.MessageDeduplication.2.0.2-pre\lib\net451\MongoDB.Bson.dll - True - - - ..\packages\ServiceConnect.Filters.MessageDeduplication.2.0.2-pre\lib\net451\MongoDB.Driver.dll - True - - - ..\packages\ServiceConnect.Filters.MessageDeduplication.2.0.2-pre\lib\net451\MongoDB.Driver.Core.dll - True - - - ..\packages\ServiceConnect.Filters.MessageDeduplication.2.0.2-pre\lib\net451\MongoDB.Driver.Legacy.dll - True - - - ..\packages\Newtonsoft.Json.9.0.1\lib\net45\Newtonsoft.Json.dll - True - - - ..\packages\RabbitMQ.Client.4.1.1\lib\net451\RabbitMQ.Client.dll - True - - - ..\packages\Ruffer.Membership.Messages.1.0.5\lib\net45\Ruffer.Membership.Messages.dll - True - - - ..\packages\Ruffer.Reporting.Service.Messages.0.124-pre\lib\net45\Ruffer.Reporting.Service.Messages.dll - True - - - ..\packages\Ruffer.Security.Claims.0.4.0-pre\lib\net45\Ruffer.Security.Claims.dll - True - - - ..\packages\Ruffer.Security.Filters.0.20.0-pre\lib\net45\Ruffer.Security.Filters.dll - True - - - ..\packages\ServiceConnect.4.0.2-pre\lib\net451\ServiceConnect.dll - True - - - ..\packages\ServiceConnect.4.0.2-pre\lib\net451\ServiceConnect.Client.RabbitMQ.dll - True - - - ..\packages\ServiceConnect.4.0.2-pre\lib\net451\ServiceConnect.Container.Default.dll - True - - - ..\packages\ServiceConnect.Container.StructureMap.4.0.3-pre\lib\net451\ServiceConnect.Container.StructureMap.dll - True - - - ..\packages\ServiceConnect.4.0.2-pre\lib\net451\ServiceConnect.Core.dll - True - - - ..\packages\ServiceConnect.Filters.MessageDeduplication.2.0.2-pre\lib\net451\ServiceConnect.Filters.MessageDeduplication.dll - True - - - ..\packages\ServiceConnect.4.0.2-pre\lib\net451\ServiceConnect.Interfaces.dll - True - - - ..\packages\ServiceConnect.4.0.2-pre\lib\net451\ServiceConnect.Persistance.InMemory.dll - True - - - ..\packages\ServiceConnect.4.0.2-pre\lib\net451\ServiceConnect.Persistance.SqlServer.dll - True - - - ..\packages\StructureMap.4.4.2\lib\net45\StructureMap.dll - True - - - - - - - ..\packages\Microsoft.AspNet.WebApi.Client.5.2.3\lib\net45\System.Net.Http.Formatting.dll - True - - - ..\packages\ServiceConnect.Filters.MessageDeduplication.2.0.2-pre\lib\net451\System.Runtime.InteropServices.RuntimeInformation.dll - True - - - - - - - - - - - - - - Designer - - - - - - {ddfdec3a-9546-4d50-83df-464cbfcbde82} - PointToPoint.Messages - - - - - - \ No newline at end of file diff --git a/samples/PointToPoint - Copy/PointToPoint.Producer/Program.cs b/samples/PointToPoint - Copy/PointToPoint.Producer/Program.cs deleted file mode 100644 index 6374a38e3..000000000 --- a/samples/PointToPoint - Copy/PointToPoint.Producer/Program.cs +++ /dev/null @@ -1,81 +0,0 @@ -using System; -using System.Configuration; -using System.Security.Authentication; -using System.Security.Cryptography.X509Certificates; -using PointToPoint.Messages; -using Ruffer.Security.Filters; -using ServiceConnect; -using ServiceConnect.Container.StructureMap; -using ServiceConnect.Filters.MessageDeduplication; -using ServiceConnect.Filters.MessageDeduplication.Filters; -using StructureMap; - -namespace PointToPoint.Producer -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Producer ***********"); - - IContainer myContainer = new StructureMap.Container(); - - - var claimsHelper = new ClaimsHelper(); - var claims = claimsHelper.AuthenticateUser(ConfigurationManager.AppSettings["AuthenticationService"]); - - var depdulicationSettings = DeduplicationFilterSettings.Instance; - depdulicationSettings.ConnectionStringMongoDb = ConfigurationManager.AppSettings["ServiceConnectPersistorConnectionString"]; - depdulicationSettings.DatabaseNameMongoDb = "MessageDeduplication"; - depdulicationSettings.CollectionNameMongoDb = ConfigurationManager.AppSettings["EndPoint"]; - depdulicationSettings.MsgCleanupIntervalMinutes = 6 * 60; // Every 6 hours - depdulicationSettings.MsgExpiryHours = 7 * 24; // 1 week - - var bus = Bus.Initialize(config => - { - config.TransportSettings.SslEnabled = true; - config.TransportSettings.Certs = new X509Certificate2Collection - { - new X509Certificate2(Convert.FromBase64String(ConfigurationManager.AppSettings["RabbitMqCertBase64"]), - ConfigurationManager.AppSettings["RabbitMqCertPassword"]) - }; - config.TransportSettings.Username = ConfigurationManager.AppSettings["RabbitMQUsername"]; - config.TransportSettings.Password = ConfigurationManager.AppSettings["RabbitMqPassword"]; - config.TransportSettings.ServerName = ConfigurationManager.AppSettings["RabbitMqHostname"]; - config.TransportSettings.Version = SslProtocols.Default; - config.ScanForMesssageHandlers = true; - config.SetNumberOfClients(20); - config.SetContainer(myContainer); - config.SetAuditingEnabled(true); - - config.BeforeConsumingFilters.Add(typeof(IncomingDeduplicationFilterMongoDbSsl)); - config.BeforeConsumingFilters.Add(typeof(TokenDecryptFilter)); - - config.AfterConsumingFilters.Add(typeof(OutgoingDeduplicationFilterMongoDbSsl)); - config.OutgoingFilters.Add(typeof(TokenInjectTokenFilter)); - - config.TransportSettings.MaxRetries = 0; - - config.AddQueueMapping(typeof(PointToPointMessage), "PointToPoint.Consumer"); - - }); - - while (true) - { - Console.WriteLine("Press enter to send message"); - Console.ReadLine(); - - Console.WriteLine("Start: {0}", DateTime.Now); - - for (int i = 0; i < 1000000; i++) - { - var id = Guid.NewGuid(); - bus.Send(new PointToPointMessage(id)); - } - - Console.WriteLine("Sent messages"); - Console.WriteLine(""); - } - } - } -} diff --git a/samples/PointToPoint - Copy/PointToPoint.Producer/Properties/AssemblyInfo.cs b/samples/PointToPoint - Copy/PointToPoint.Producer/Properties/AssemblyInfo.cs deleted file mode 100644 index bf878b9e1..000000000 --- a/samples/PointToPoint - Copy/PointToPoint.Producer/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("PointToPoint.Producer")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("PointToPoint.Producer")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("2a8df913-60f3-4ee4-9025-02b3ad61d73c")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/PointToPoint - Copy/PointToPoint.Producer/packages.config b/samples/PointToPoint - Copy/PointToPoint.Producer/packages.config deleted file mode 100644 index 8547fa9cf..000000000 --- a/samples/PointToPoint - Copy/PointToPoint.Producer/packages.config +++ /dev/null @@ -1,21 +0,0 @@ - - - - - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/samples/PointToPoint - Copy/PointToPoint.sln b/samples/PointToPoint - Copy/PointToPoint.sln deleted file mode 100644 index 0601dcbbd..000000000 --- a/samples/PointToPoint - Copy/PointToPoint.sln +++ /dev/null @@ -1,39 +0,0 @@ - -Microsoft Visual Studio Solution File, Format Version 12.00 -# Visual Studio 2012 -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PointToPoint.Messages", "PointToPoint.Messages\PointToPoint.Messages.csproj", "{DDFDEC3A-9546-4D50-83DF-464CBFCBDE82}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PointToPoint.Producer", "PointToPoint.Producer\PointToPoint.Producer.csproj", "{343DC117-1550-4FE1-A867-01F76CBD438C}" -EndProject -Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = ".nuget", ".nuget", "{46CB27FF-20C9-4578-823D-1EA15C8A7A83}" - ProjectSection(SolutionItems) = preProject - .nuget\NuGet.Config = .nuget\NuGet.Config - .nuget\NuGet.exe = .nuget\NuGet.exe - .nuget\NuGet.targets = .nuget\NuGet.targets - EndProjectSection -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PointToPoint.Consumer", "PointToPoint.Consumer\PointToPoint.Consumer.csproj", "{17FC8160-EBE8-443A-9A58-3CFBF7DE0E0A}" -EndProject -Global - GlobalSection(SolutionConfigurationPlatforms) = preSolution - Debug|Any CPU = Debug|Any CPU - Release|Any CPU = Release|Any CPU - EndGlobalSection - GlobalSection(ProjectConfigurationPlatforms) = postSolution - {DDFDEC3A-9546-4D50-83DF-464CBFCBDE82}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {DDFDEC3A-9546-4D50-83DF-464CBFCBDE82}.Debug|Any CPU.Build.0 = Debug|Any CPU - {DDFDEC3A-9546-4D50-83DF-464CBFCBDE82}.Release|Any CPU.ActiveCfg = Release|Any CPU - {DDFDEC3A-9546-4D50-83DF-464CBFCBDE82}.Release|Any CPU.Build.0 = Release|Any CPU - {343DC117-1550-4FE1-A867-01F76CBD438C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {343DC117-1550-4FE1-A867-01F76CBD438C}.Debug|Any CPU.Build.0 = Debug|Any CPU - {343DC117-1550-4FE1-A867-01F76CBD438C}.Release|Any CPU.ActiveCfg = Release|Any CPU - {343DC117-1550-4FE1-A867-01F76CBD438C}.Release|Any CPU.Build.0 = Release|Any CPU - {17FC8160-EBE8-443A-9A58-3CFBF7DE0E0A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {17FC8160-EBE8-443A-9A58-3CFBF7DE0E0A}.Debug|Any CPU.Build.0 = Debug|Any CPU - {17FC8160-EBE8-443A-9A58-3CFBF7DE0E0A}.Release|Any CPU.ActiveCfg = Release|Any CPU - {17FC8160-EBE8-443A-9A58-3CFBF7DE0E0A}.Release|Any CPU.Build.0 = Release|Any CPU - EndGlobalSection - GlobalSection(SolutionProperties) = preSolution - HideSolutionNode = FALSE - EndGlobalSection -EndGlobal diff --git a/samples/PointToPoint/.nuget/NuGet.Config b/samples/PointToPoint/.nuget/NuGet.Config deleted file mode 100644 index 67f8ea046..000000000 --- a/samples/PointToPoint/.nuget/NuGet.Config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - \ No newline at end of file diff --git a/samples/PointToPoint/.nuget/NuGet.exe b/samples/PointToPoint/.nuget/NuGet.exe deleted file mode 100644 index 9cba6edbf..000000000 Binary files a/samples/PointToPoint/.nuget/NuGet.exe and /dev/null differ diff --git a/samples/PointToPoint/.nuget/NuGet.targets b/samples/PointToPoint/.nuget/NuGet.targets deleted file mode 100644 index 2c3545bc7..000000000 --- a/samples/PointToPoint/.nuget/NuGet.targets +++ /dev/null @@ -1,151 +0,0 @@ - - - - $(MSBuildProjectDirectory)\..\ - - - false - - - false - - - true - - - false - - - - - - - - - - - $([System.IO.Path]::Combine($(SolutionDir), ".nuget")) - - - - - $(SolutionDir).nuget - - - - packages.$(MSBuildProjectName.Replace(' ', '_')).config - - - - - - $(PackagesProjectConfig) - - - - - packages.config - - - - - - - $(NuGetToolsPath)\NuGet.exe - @(PackageSource) - - "$(NuGetExePath)" - mono --runtime=v4.0.30319 $(NuGetExePath) - - $(TargetDir.Trim('\\')) - - -RequireConsent - -NonInteractive - - "$(SolutionDir) " - "$(SolutionDir)" - - - $(NuGetCommand) install "$(PackagesConfig)" -source "$(PackageSources)" $(NonInteractiveSwitch) $(RequireConsentSwitch) -solutionDir $(PaddedSolutionDir) - $(NuGetCommand) pack "$(ProjectPath)" -Properties "Configuration=$(Configuration);Platform=$(Platform)" $(NonInteractiveSwitch) -OutputDirectory "$(PackageOutputDir)" -symbols - - - - RestorePackages; - $(BuildDependsOn); - - - - - $(BuildDependsOn); - BuildPackage; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - diff --git a/samples/PointToPoint/.vs/PointToPoint/v15/sqlite3/storage.ide b/samples/PointToPoint/.vs/PointToPoint/v15/sqlite3/storage.ide deleted file mode 100644 index ddafb8d0c..000000000 Binary files a/samples/PointToPoint/.vs/PointToPoint/v15/sqlite3/storage.ide and /dev/null differ diff --git a/samples/PointToPoint/PointToPoint.Consumer/App.config b/samples/PointToPoint/PointToPoint.Consumer/App.config deleted file mode 100644 index 9b02b9470..000000000 --- a/samples/PointToPoint/PointToPoint.Consumer/App.config +++ /dev/null @@ -1,10 +0,0 @@ - - - - - - - - - - diff --git a/samples/PointToPoint/PointToPoint.Consumer/PointToPoint.Consumer.csproj b/samples/PointToPoint/PointToPoint.Consumer/PointToPoint.Consumer.csproj deleted file mode 100644 index 52f4843c4..000000000 --- a/samples/PointToPoint/PointToPoint.Consumer/PointToPoint.Consumer.csproj +++ /dev/null @@ -1,122 +0,0 @@ - - - - - Debug - AnyCPU - {17FC8160-EBE8-443A-9A58-3CFBF7DE0E0A} - Exe - Properties - PointToPoint.Consumer - PointToPoint.Consumer - v4.5.2 - 512 - ..\ - true - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect.Container.StructureMap\bin\Debug\net451\ServiceConnect.Container.StructureMap.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - ..\..\..\src\ServiceConnect.Container.StructureMap\bin\Debug\net451\StructureMap.dll - - - - - - - - - - - - - - - - - - Designer - - - - - {ddfdec3a-9546-4d50-83df-464cbfcbde82} - PointToPoint.Messages - - - - - - \ No newline at end of file diff --git a/samples/PointToPoint/PointToPoint.Consumer/PointToPointMessageHandler.cs b/samples/PointToPoint/PointToPoint.Consumer/PointToPointMessageHandler.cs deleted file mode 100644 index c103cd43d..000000000 --- a/samples/PointToPoint/PointToPoint.Consumer/PointToPointMessageHandler.cs +++ /dev/null @@ -1,18 +0,0 @@ -using System; -using System.Threading; -using PointToPoint.Messages; -using ServiceConnect.Interfaces; - -namespace PointToPoint.Consumer -{ - public class PointToPointMessageHandler : IMessageHandler - { - public void Execute(PointToPointMessage command) - { - Console.WriteLine("+++++++++++++++++++++++++++++++++++++ {0}: Handler", Thread.CurrentThread.ManagedThreadId, command.CorrelationId); - //Thread.Sleep(1000); - } - - public IConsumeContext Context { get; set; } - } -} \ No newline at end of file diff --git a/samples/PointToPoint/PointToPoint.Consumer/Program.cs b/samples/PointToPoint/PointToPoint.Consumer/Program.cs deleted file mode 100644 index ac4f17e52..000000000 --- a/samples/PointToPoint/PointToPoint.Consumer/Program.cs +++ /dev/null @@ -1,68 +0,0 @@ -using System; -using System.Configuration; -using System.Diagnostics; -using System.Reflection; -using System.Security.Authentication; -using System.Security.Cryptography.X509Certificates; -using ServiceConnect; -using ServiceConnect.Container.Default; -using ServiceConnect.Container.StructureMap; -using ServiceConnect.Interfaces; -using StructureMap; - -namespace PointToPoint.Consumer -{ - class Logger : ILogger - { - public void Debug(string message) - { - Console.WriteLine(message); - } - - public void Info(string message) - { - Console.WriteLine(message); - } - - public void Error(string message, Exception ex = null) - { - Console.WriteLine(message); - } - - public void Warn(string message, Exception ex = null) - { - Console.WriteLine(message); - } - - public void Fatal(string message, Exception ex = null) - { - Console.WriteLine(message); - } - } - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Consumer ***********"); - - IContainer myContainer = new StructureMap.Container(); - - var bus = Bus.Initialize(config => - { - config.SetContainer(myContainer); - config.SetQueueName("PointToPoint.Consumer"); - config.SetHost(ConfigurationManager.AppSettings["RabbitMqHost"]); - config.SetAuditingEnabled(false); - config.SetNumberOfClients(20); - config.SetLogger(new Logger()); - }); - bus.StartConsuming(); - - Console.WriteLine("Connected"); - - Console.ReadLine(); - - bus.Dispose(); - } - } -} diff --git a/samples/PointToPoint/PointToPoint.Consumer/Properties/AssemblyInfo.cs b/samples/PointToPoint/PointToPoint.Consumer/Properties/AssemblyInfo.cs deleted file mode 100644 index 60c32acc8..000000000 --- a/samples/PointToPoint/PointToPoint.Consumer/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("PointToPoint.Consumer")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("PointToPoint.Consumer")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("f5ea2abb-9d0d-47b5-a51f-bc80d0a04ea4")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/PointToPoint/PointToPoint.Consumer/packages.config b/samples/PointToPoint/PointToPoint.Consumer/packages.config deleted file mode 100644 index 44b1381ca..000000000 --- a/samples/PointToPoint/PointToPoint.Consumer/packages.config +++ /dev/null @@ -1,15 +0,0 @@ - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/samples/PointToPoint/PointToPoint.Messages/PointToPoint.Messages.csproj b/samples/PointToPoint/PointToPoint.Messages/PointToPoint.Messages.csproj deleted file mode 100644 index 339929015..000000000 --- a/samples/PointToPoint/PointToPoint.Messages/PointToPoint.Messages.csproj +++ /dev/null @@ -1,64 +0,0 @@ - - - - - Debug - AnyCPU - {DDFDEC3A-9546-4D50-83DF-464CBFCBDE82} - Library - Properties - PointToPoint.Messages - PointToPoint.Messages - v4.5.1 - 512 - ..\ - true - - - - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/samples/PointToPoint/PointToPoint.Messages/PointToPointMessage.cs b/samples/PointToPoint/PointToPoint.Messages/PointToPointMessage.cs deleted file mode 100644 index fbe8c7fd5..000000000 --- a/samples/PointToPoint/PointToPoint.Messages/PointToPointMessage.cs +++ /dev/null @@ -1,12 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace PointToPoint.Messages -{ - public class PointToPointMessage : Message - { - public PointToPointMessage(Guid correlationId) : base(correlationId){} - public byte[] Data { get; set; } - public int SerialNumber { get; set; } - } -} diff --git a/samples/PointToPoint/PointToPoint.Messages/Properties/AssemblyInfo.cs b/samples/PointToPoint/PointToPoint.Messages/Properties/AssemblyInfo.cs deleted file mode 100644 index 70944e0b8..000000000 --- a/samples/PointToPoint/PointToPoint.Messages/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("PointToPoint.Messages")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("PointToPoint.Messages")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("93627298-70af-4671-827a-8da1a675580d")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/PointToPoint/PointToPoint.Messages/app.config b/samples/PointToPoint/PointToPoint.Messages/app.config deleted file mode 100644 index 884f9844f..000000000 --- a/samples/PointToPoint/PointToPoint.Messages/app.config +++ /dev/null @@ -1,3 +0,0 @@ - - - diff --git a/samples/PointToPoint/PointToPoint.Messages/packages.config b/samples/PointToPoint/PointToPoint.Messages/packages.config deleted file mode 100644 index def3602c4..000000000 --- a/samples/PointToPoint/PointToPoint.Messages/packages.config +++ /dev/null @@ -1,4 +0,0 @@ - - - - \ No newline at end of file diff --git a/samples/PointToPoint/PointToPoint.Producer/PointToPoint.Producer.csproj b/samples/PointToPoint/PointToPoint.Producer/PointToPoint.Producer.csproj deleted file mode 100644 index dc8349862..000000000 --- a/samples/PointToPoint/PointToPoint.Producer/PointToPoint.Producer.csproj +++ /dev/null @@ -1,116 +0,0 @@ - - - - - Debug - AnyCPU - {343DC117-1550-4FE1-A867-01F76CBD438C} - Exe - Properties - PointToPoint.Producer - PointToPoint.Producer - v4.5.1 - 512 - ..\ - true - - - - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - Designer - - - - - {ddfdec3a-9546-4d50-83df-464cbfcbde82} - PointToPoint.Messages - - - - - - \ No newline at end of file diff --git a/samples/PointToPoint/PointToPoint.Producer/Program.cs b/samples/PointToPoint/PointToPoint.Producer/Program.cs deleted file mode 100644 index de34b384f..000000000 --- a/samples/PointToPoint/PointToPoint.Producer/Program.cs +++ /dev/null @@ -1,79 +0,0 @@ -using System; -using System.Configuration; -using System.Security.Authentication; -using System.Security.Cryptography.X509Certificates; -using System.Threading; -using PointToPoint.Messages; -using ServiceConnect; -using ServiceConnect.Interfaces; - -namespace PointToPoint.Producer -{ - class Logger : ILogger - { - public void Debug(string message) - { - Console.WriteLine(message); - } - - public void Info(string message) - { - Console.WriteLine(message); - } - - public void Error(string message, Exception ex = null) - { - Console.WriteLine(message); - } - - public void Warn(string message, Exception ex = null) - { - Console.WriteLine(message); - } - - public void Fatal(string message, Exception ex = null) - { - Console.WriteLine(message); - } - } - - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Producer ***********"); - var bus = Bus.Initialize(config => - { - config.AddQueueMapping(typeof(PointToPointMessage), "PointToPoint.Consumer"); - config.AutoStartConsuming = false; - config.SetHost(ConfigurationManager.AppSettings["RabbitMqHost"]); - config.SetAuditingEnabled(false); - config.SetLogger(new Logger()); - - }); - - while (true) - { - Console.WriteLine("Press enter to send message"); - Console.ReadLine(); - - Console.WriteLine("Start: {0}", DateTime.Now); - - for (int i = 0; i < 300000; i++) - { - var id = Guid.NewGuid(); - bus.Send(new PointToPointMessage(id) - { - Data = new byte[10000], - SerialNumber = i - }); - Thread.Sleep(1000); - // Console.ReadLine(); - } - - Console.WriteLine("Sent messages"); - Console.WriteLine(""); - } - } - } -} diff --git a/samples/PointToPoint/PointToPoint.Producer/Properties/AssemblyInfo.cs b/samples/PointToPoint/PointToPoint.Producer/Properties/AssemblyInfo.cs deleted file mode 100644 index bf878b9e1..000000000 --- a/samples/PointToPoint/PointToPoint.Producer/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("PointToPoint.Producer")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("PointToPoint.Producer")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("2a8df913-60f3-4ee4-9025-02b3ad61d73c")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/PointToPoint/PointToPoint.Producer/app.config b/samples/PointToPoint/PointToPoint.Producer/app.config deleted file mode 100644 index 9b02b9470..000000000 --- a/samples/PointToPoint/PointToPoint.Producer/app.config +++ /dev/null @@ -1,10 +0,0 @@ - - - - - - - - - - diff --git a/samples/PointToPoint/PointToPoint.Producer/packages.config b/samples/PointToPoint/PointToPoint.Producer/packages.config deleted file mode 100644 index b857ab7d8..000000000 --- a/samples/PointToPoint/PointToPoint.Producer/packages.config +++ /dev/null @@ -1,15 +0,0 @@ - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/samples/PointToPoint/PointToPoint.sln b/samples/PointToPoint/PointToPoint.sln deleted file mode 100644 index 0601dcbbd..000000000 --- a/samples/PointToPoint/PointToPoint.sln +++ /dev/null @@ -1,39 +0,0 @@ - -Microsoft Visual Studio Solution File, Format Version 12.00 -# Visual Studio 2012 -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PointToPoint.Messages", "PointToPoint.Messages\PointToPoint.Messages.csproj", "{DDFDEC3A-9546-4D50-83DF-464CBFCBDE82}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PointToPoint.Producer", "PointToPoint.Producer\PointToPoint.Producer.csproj", "{343DC117-1550-4FE1-A867-01F76CBD438C}" -EndProject -Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = ".nuget", ".nuget", "{46CB27FF-20C9-4578-823D-1EA15C8A7A83}" - ProjectSection(SolutionItems) = preProject - .nuget\NuGet.Config = .nuget\NuGet.Config - .nuget\NuGet.exe = .nuget\NuGet.exe - .nuget\NuGet.targets = .nuget\NuGet.targets - EndProjectSection -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PointToPoint.Consumer", "PointToPoint.Consumer\PointToPoint.Consumer.csproj", "{17FC8160-EBE8-443A-9A58-3CFBF7DE0E0A}" -EndProject -Global - GlobalSection(SolutionConfigurationPlatforms) = preSolution - Debug|Any CPU = Debug|Any CPU - Release|Any CPU = Release|Any CPU - EndGlobalSection - GlobalSection(ProjectConfigurationPlatforms) = postSolution - {DDFDEC3A-9546-4D50-83DF-464CBFCBDE82}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {DDFDEC3A-9546-4D50-83DF-464CBFCBDE82}.Debug|Any CPU.Build.0 = Debug|Any CPU - {DDFDEC3A-9546-4D50-83DF-464CBFCBDE82}.Release|Any CPU.ActiveCfg = Release|Any CPU - {DDFDEC3A-9546-4D50-83DF-464CBFCBDE82}.Release|Any CPU.Build.0 = Release|Any CPU - {343DC117-1550-4FE1-A867-01F76CBD438C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {343DC117-1550-4FE1-A867-01F76CBD438C}.Debug|Any CPU.Build.0 = Debug|Any CPU - {343DC117-1550-4FE1-A867-01F76CBD438C}.Release|Any CPU.ActiveCfg = Release|Any CPU - {343DC117-1550-4FE1-A867-01F76CBD438C}.Release|Any CPU.Build.0 = Release|Any CPU - {17FC8160-EBE8-443A-9A58-3CFBF7DE0E0A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {17FC8160-EBE8-443A-9A58-3CFBF7DE0E0A}.Debug|Any CPU.Build.0 = Debug|Any CPU - {17FC8160-EBE8-443A-9A58-3CFBF7DE0E0A}.Release|Any CPU.ActiveCfg = Release|Any CPU - {17FC8160-EBE8-443A-9A58-3CFBF7DE0E0A}.Release|Any CPU.Build.0 = Release|Any CPU - EndGlobalSection - GlobalSection(SolutionProperties) = preSolution - HideSolutionNode = FALSE - EndGlobalSection -EndGlobal diff --git a/samples/PolymorphicMessages/.nuget/NuGet.Config b/samples/PolymorphicMessages/.nuget/NuGet.Config deleted file mode 100644 index 67f8ea046..000000000 --- a/samples/PolymorphicMessages/.nuget/NuGet.Config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - \ No newline at end of file diff --git a/samples/PolymorphicMessages/.nuget/NuGet.exe b/samples/PolymorphicMessages/.nuget/NuGet.exe deleted file mode 100644 index 9ca66594f..000000000 Binary files a/samples/PolymorphicMessages/.nuget/NuGet.exe and /dev/null differ diff --git a/samples/PolymorphicMessages/.nuget/NuGet.targets b/samples/PolymorphicMessages/.nuget/NuGet.targets deleted file mode 100644 index 3f8c37b22..000000000 --- a/samples/PolymorphicMessages/.nuget/NuGet.targets +++ /dev/null @@ -1,144 +0,0 @@ - - - - $(MSBuildProjectDirectory)\..\ - - - false - - - false - - - true - - - false - - - - - - - - - - - $([System.IO.Path]::Combine($(SolutionDir), ".nuget")) - - - - - $(SolutionDir).nuget - - - - $(MSBuildProjectDirectory)\packages.$(MSBuildProjectName.Replace(' ', '_')).config - $(MSBuildProjectDirectory)\packages.$(MSBuildProjectName).config - - - - $(MSBuildProjectDirectory)\packages.config - $(PackagesProjectConfig) - - - - - $(NuGetToolsPath)\NuGet.exe - @(PackageSource) - - "$(NuGetExePath)" - mono --runtime=v4.0.30319 "$(NuGetExePath)" - - $(TargetDir.Trim('\\')) - - -RequireConsent - -NonInteractive - - "$(SolutionDir) " - "$(SolutionDir)" - - - $(NuGetCommand) install "$(PackagesConfig)" -source "$(PackageSources)" $(NonInteractiveSwitch) $(RequireConsentSwitch) -solutionDir $(PaddedSolutionDir) - $(NuGetCommand) pack "$(ProjectPath)" -Properties "Configuration=$(Configuration);Platform=$(Platform)" $(NonInteractiveSwitch) -OutputDirectory "$(PackageOutputDir)" -symbols - - - - RestorePackages; - $(BuildDependsOn); - - - - - $(BuildDependsOn); - BuildPackage; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - diff --git a/samples/PolymorphicMessages/PolymorphicMessages.Consumer/App.config b/samples/PolymorphicMessages/PolymorphicMessages.Consumer/App.config deleted file mode 100644 index 9b99dee52..000000000 --- a/samples/PolymorphicMessages/PolymorphicMessages.Consumer/App.config +++ /dev/null @@ -1,7 +0,0 @@ - - - - - - - \ No newline at end of file diff --git a/samples/PolymorphicMessages/PolymorphicMessages.Consumer/BaseTypeHandler.cs b/samples/PolymorphicMessages/PolymorphicMessages.Consumer/BaseTypeHandler.cs deleted file mode 100644 index c96ff05fe..000000000 --- a/samples/PolymorphicMessages/PolymorphicMessages.Consumer/BaseTypeHandler.cs +++ /dev/null @@ -1,17 +0,0 @@ -using System; -using PolymorphicMessages.Messages; -using ServiceConnect.Interfaces; - -namespace PolymorphicMessages.Consumer -{ - public class BaseTypeHandler : IMessageHandler - { - public void Execute(BaseType message) - { - Console.WriteLine(""); - Console.WriteLine("Received: {0} - {1}", message.GetType().Name, message.CorrelationId); - } - - public IConsumeContext Context { get; set; } - } -} diff --git a/samples/PolymorphicMessages/PolymorphicMessages.Consumer/PolymorphicMessages.Consumer.csproj b/samples/PolymorphicMessages/PolymorphicMessages.Consumer/PolymorphicMessages.Consumer.csproj deleted file mode 100644 index f18e7c145..000000000 --- a/samples/PolymorphicMessages/PolymorphicMessages.Consumer/PolymorphicMessages.Consumer.csproj +++ /dev/null @@ -1,111 +0,0 @@ - - - - - Debug - AnyCPU - {A0E107FC-DDC1-4E69-AA33-F265D921089C} - Exe - Properties - PolymorphicMessages.Consumer - PolymorphicMessages.Consumer - v4.5.1 - 512 - true - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - - - {7E2BC0BF-4C2D-4176-AE90-B9CEA9EEDC74} - PolymorphicMessages.Messages - - - - - \ No newline at end of file diff --git a/samples/PolymorphicMessages/PolymorphicMessages.Consumer/Program.cs b/samples/PolymorphicMessages/PolymorphicMessages.Consumer/Program.cs deleted file mode 100644 index e324a3bc6..000000000 --- a/samples/PolymorphicMessages/PolymorphicMessages.Consumer/Program.cs +++ /dev/null @@ -1,22 +0,0 @@ -using System; -using ServiceConnect; - -namespace PolymorphicMessages.Consumer -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Consumer ***********"); - var bus = Bus.Initialize(x => - { - x.ScanForMesssageHandlers = true; - x.SetQueueName("PolymorphicConsumer"); - }); - - bus.StartConsuming(); - - Console.ReadLine(); - } - } -} diff --git a/samples/PolymorphicMessages/PolymorphicMessages.Consumer/Properties/AssemblyInfo.cs b/samples/PolymorphicMessages/PolymorphicMessages.Consumer/Properties/AssemblyInfo.cs deleted file mode 100644 index 5c1d44d42..000000000 --- a/samples/PolymorphicMessages/PolymorphicMessages.Consumer/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("PolymorphicMessages.Consumer")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("PolymorphicMessages.Consumer")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("0faf3624-52d6-4c8a-801b-d635b73646ec")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/PolymorphicMessages/PolymorphicMessages.Consumer/packages.config b/samples/PolymorphicMessages/PolymorphicMessages.Consumer/packages.config deleted file mode 100644 index aee714db0..000000000 --- a/samples/PolymorphicMessages/PolymorphicMessages.Consumer/packages.config +++ /dev/null @@ -1,4 +0,0 @@ - - - - \ No newline at end of file diff --git a/samples/PolymorphicMessages/PolymorphicMessages.Messages/BaseType.cs b/samples/PolymorphicMessages/PolymorphicMessages.Messages/BaseType.cs deleted file mode 100644 index 7473797b0..000000000 --- a/samples/PolymorphicMessages/PolymorphicMessages.Messages/BaseType.cs +++ /dev/null @@ -1,12 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace PolymorphicMessages.Messages -{ - public class BaseType : Message - { - public BaseType(Guid correlationId) : base(correlationId) - { - } - } -} diff --git a/samples/PolymorphicMessages/PolymorphicMessages.Messages/DerivedType.cs b/samples/PolymorphicMessages/PolymorphicMessages.Messages/DerivedType.cs deleted file mode 100644 index d752f5c45..000000000 --- a/samples/PolymorphicMessages/PolymorphicMessages.Messages/DerivedType.cs +++ /dev/null @@ -1,11 +0,0 @@ -using System; - -namespace PolymorphicMessages.Messages -{ - public class DerivedType : BaseType - { - public DerivedType(Guid correlationId) : base(correlationId) - { - } - } -} diff --git a/samples/PolymorphicMessages/PolymorphicMessages.Messages/PolymorphicMessages.Messages.csproj b/samples/PolymorphicMessages/PolymorphicMessages.Messages/PolymorphicMessages.Messages.csproj deleted file mode 100644 index 78c2bc505..000000000 --- a/samples/PolymorphicMessages/PolymorphicMessages.Messages/PolymorphicMessages.Messages.csproj +++ /dev/null @@ -1,61 +0,0 @@ - - - - - Debug - AnyCPU - {7E2BC0BF-4C2D-4176-AE90-B9CEA9EEDC74} - Library - Properties - PolymorphicMessages.Messages - PolymorphicMessages.Messages - v4.5.1 - 512 - - - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/samples/PolymorphicMessages/PolymorphicMessages.Messages/Properties/AssemblyInfo.cs b/samples/PolymorphicMessages/PolymorphicMessages.Messages/Properties/AssemblyInfo.cs deleted file mode 100644 index 8a37a6512..000000000 --- a/samples/PolymorphicMessages/PolymorphicMessages.Messages/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("PolymorphicMessages.Messages")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("PolymorphicMessages.Messages")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("ec851df7-4b39-4120-97bf-83b20f5f01da")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/PolymorphicMessages/PolymorphicMessages.Messages/packages.config b/samples/PolymorphicMessages/PolymorphicMessages.Messages/packages.config deleted file mode 100644 index 6b8deb9c9..000000000 --- a/samples/PolymorphicMessages/PolymorphicMessages.Messages/packages.config +++ /dev/null @@ -1,3 +0,0 @@ - - - \ No newline at end of file diff --git a/samples/PolymorphicMessages/PolymorphicMessages.Producer/App.config b/samples/PolymorphicMessages/PolymorphicMessages.Producer/App.config deleted file mode 100644 index 47dd1f1ae..000000000 --- a/samples/PolymorphicMessages/PolymorphicMessages.Producer/App.config +++ /dev/null @@ -1,7 +0,0 @@ - - - - - - - \ No newline at end of file diff --git a/samples/PolymorphicMessages/PolymorphicMessages.Producer/PolymorphicMessages.Producer.csproj b/samples/PolymorphicMessages/PolymorphicMessages.Producer/PolymorphicMessages.Producer.csproj deleted file mode 100644 index 86f7da5f2..000000000 --- a/samples/PolymorphicMessages/PolymorphicMessages.Producer/PolymorphicMessages.Producer.csproj +++ /dev/null @@ -1,111 +0,0 @@ - - - - - Debug - AnyCPU - {6F0BB621-232C-4183-A0D9-2B4FF870F213} - Exe - Properties - PolymorphicMessages.Producer - PolymorphicMessages.Producer - v4.5.1 - 512 - true - ..\..\McDonalds\ - true - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - - - - - - - - {7E2BC0BF-4C2D-4176-AE90-B9CEA9EEDC74} - PolymorphicMessages.Messages - - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them. For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}. - - - - - \ No newline at end of file diff --git a/samples/PolymorphicMessages/PolymorphicMessages.Producer/Program.cs b/samples/PolymorphicMessages/PolymorphicMessages.Producer/Program.cs deleted file mode 100644 index 92e67d6d9..000000000 --- a/samples/PolymorphicMessages/PolymorphicMessages.Producer/Program.cs +++ /dev/null @@ -1,55 +0,0 @@ -using System; -using PolymorphicMessages.Messages; -using ServiceConnect; - -namespace PolymorphicMessages.Producer -{ - class Program - { - private static void Main(string[] args) - { - Console.WriteLine("*********** Producer ***********"); - var bus = Bus.Initialize(config => - { - config.AddQueueMapping(typeof (DerivedType), "PolymorphicConsumer"); - config.AddQueueMapping(typeof(BaseType), "PolymorphicConsumer"); - }); - - while (true) - { - Console.WriteLine(""); - Console.WriteLine("Press enter to SEND"); - Console.ReadLine(); - - var id1 = Guid.NewGuid(); - bus.Send(new DerivedType(id1)); - - var id2 = Guid.NewGuid(); - bus.Send(new BaseType(id2)); - - Console.WriteLine("Sent messages"); - Console.WriteLine("Derived: {0}", id1); - Console.WriteLine("Based: {0}", id2); - Console.WriteLine(""); - - - Console.WriteLine(""); - Console.WriteLine("Press enter to PUBLISH"); - Console.ReadLine(); - - var id3 = Guid.NewGuid(); - bus.Publish(new DerivedType(id3)); - - //var id4 = Guid.NewGuid(); - //bus.Publish(new BaseType(id4)); - - Console.WriteLine("Published messages"); - Console.WriteLine("Derived: {0}", id3); - //Console.WriteLine("Based: {0}", id4); - Console.WriteLine(""); - - Console.WriteLine(""); - } - } - } -} diff --git a/samples/PolymorphicMessages/PolymorphicMessages.Producer/Properties/AssemblyInfo.cs b/samples/PolymorphicMessages/PolymorphicMessages.Producer/Properties/AssemblyInfo.cs deleted file mode 100644 index af6258a48..000000000 --- a/samples/PolymorphicMessages/PolymorphicMessages.Producer/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("PolymorphicMessages.Producer")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("PolymorphicMessages.Producer")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("5e3fd270-ab39-4995-bb51-00e0a51fd4a0")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/PolymorphicMessages/PolymorphicMessages.sln b/samples/PolymorphicMessages/PolymorphicMessages.sln deleted file mode 100644 index 9883b77b1..000000000 --- a/samples/PolymorphicMessages/PolymorphicMessages.sln +++ /dev/null @@ -1,41 +0,0 @@ - -Microsoft Visual Studio Solution File, Format Version 12.00 -# Visual Studio 2013 -VisualStudioVersion = 12.0.30723.0 -MinimumVisualStudioVersion = 10.0.40219.1 -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PolymorphicMessages.Producer", "PolymorphicMessages.Producer\PolymorphicMessages.Producer.csproj", "{6F0BB621-232C-4183-A0D9-2B4FF870F213}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PolymorphicMessages.Messages", "PolymorphicMessages.Messages\PolymorphicMessages.Messages.csproj", "{7E2BC0BF-4C2D-4176-AE90-B9CEA9EEDC74}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PolymorphicMessages.Consumer", "PolymorphicMessages.Consumer\PolymorphicMessages.Consumer.csproj", "{A0E107FC-DDC1-4E69-AA33-F265D921089C}" -EndProject -Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = ".nuget", ".nuget", "{E0B2D8AD-C519-42E4-A4D8-D50A64785B4D}" - ProjectSection(SolutionItems) = preProject - .nuget\NuGet.Config = .nuget\NuGet.Config - .nuget\NuGet.exe = .nuget\NuGet.exe - .nuget\NuGet.targets = .nuget\NuGet.targets - EndProjectSection -EndProject -Global - GlobalSection(SolutionConfigurationPlatforms) = preSolution - Debug|Any CPU = Debug|Any CPU - Release|Any CPU = Release|Any CPU - EndGlobalSection - GlobalSection(ProjectConfigurationPlatforms) = postSolution - {6F0BB621-232C-4183-A0D9-2B4FF870F213}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {6F0BB621-232C-4183-A0D9-2B4FF870F213}.Debug|Any CPU.Build.0 = Debug|Any CPU - {6F0BB621-232C-4183-A0D9-2B4FF870F213}.Release|Any CPU.ActiveCfg = Release|Any CPU - {6F0BB621-232C-4183-A0D9-2B4FF870F213}.Release|Any CPU.Build.0 = Release|Any CPU - {7E2BC0BF-4C2D-4176-AE90-B9CEA9EEDC74}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {7E2BC0BF-4C2D-4176-AE90-B9CEA9EEDC74}.Debug|Any CPU.Build.0 = Debug|Any CPU - {7E2BC0BF-4C2D-4176-AE90-B9CEA9EEDC74}.Release|Any CPU.ActiveCfg = Release|Any CPU - {7E2BC0BF-4C2D-4176-AE90-B9CEA9EEDC74}.Release|Any CPU.Build.0 = Release|Any CPU - {A0E107FC-DDC1-4E69-AA33-F265D921089C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {A0E107FC-DDC1-4E69-AA33-F265D921089C}.Debug|Any CPU.Build.0 = Debug|Any CPU - {A0E107FC-DDC1-4E69-AA33-F265D921089C}.Release|Any CPU.ActiveCfg = Release|Any CPU - {A0E107FC-DDC1-4E69-AA33-F265D921089C}.Release|Any CPU.Build.0 = Release|Any CPU - EndGlobalSection - GlobalSection(SolutionProperties) = preSolution - HideSolutionNode = FALSE - EndGlobalSection -EndGlobal diff --git a/samples/PolymorphicMessages/PolymorphicMessages/App.config b/samples/PolymorphicMessages/PolymorphicMessages/App.config deleted file mode 100644 index 9c05822ff..000000000 --- a/samples/PolymorphicMessages/PolymorphicMessages/App.config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - \ No newline at end of file diff --git a/samples/PolymorphicMessages/PolymorphicMessages/PolymorphicMessages.csproj b/samples/PolymorphicMessages/PolymorphicMessages/PolymorphicMessages.csproj deleted file mode 100644 index 30970bbb9..000000000 --- a/samples/PolymorphicMessages/PolymorphicMessages/PolymorphicMessages.csproj +++ /dev/null @@ -1,59 +0,0 @@ - - - - - Debug - AnyCPU - {83F980F1-8397-4B32-90B3-117BB0D4A013} - Exe - Properties - PolymorphicMessages - PolymorphicMessages - v4.5.1 - 512 - true - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/samples/PolymorphicMessages/PolymorphicMessages/Program.cs b/samples/PolymorphicMessages/PolymorphicMessages/Program.cs deleted file mode 100644 index 0d83f1a50..000000000 --- a/samples/PolymorphicMessages/PolymorphicMessages/Program.cs +++ /dev/null @@ -1,15 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using System.Text; -using System.Threading.Tasks; - -namespace PolymorphicMessages -{ - class Program - { - static void Main(string[] args) - { - } - } -} diff --git a/samples/PolymorphicMessages/PolymorphicMessages/Properties/AssemblyInfo.cs b/samples/PolymorphicMessages/PolymorphicMessages/Properties/AssemblyInfo.cs deleted file mode 100644 index 391327605..000000000 --- a/samples/PolymorphicMessages/PolymorphicMessages/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("PolymorphicMessages")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("PolymorphicMessages")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("617f0c9f-ef2b-4374-87a8-013e2676824e")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/PriorityQueues/PriorityQueues.Consumer/MyMessageHandler.cs b/samples/PriorityQueues/PriorityQueues.Consumer/MyMessageHandler.cs deleted file mode 100644 index b86d85fdc..000000000 --- a/samples/PriorityQueues/PriorityQueues.Consumer/MyMessageHandler.cs +++ /dev/null @@ -1,19 +0,0 @@ -using System; -using System.Threading; -using PriorityQueues.Messages; -using ServiceConnect.Interfaces; - -namespace PriorityQueues.Consumer -{ - public class MyMessageHandler : IMessageHandler - { - public void Execute(MyMessage message) - { - Thread.Sleep(100); - Console.WriteLine("{0}: Consumer Received Message - {1}", - Thread.CurrentThread.ManagedThreadId, message.Name); - } - - public IConsumeContext Context { get; set; } - } -} diff --git a/samples/PriorityQueues/PriorityQueues.Consumer/PriorityQueues.Consumer.csproj b/samples/PriorityQueues/PriorityQueues.Consumer/PriorityQueues.Consumer.csproj deleted file mode 100644 index 851bdac1f..000000000 --- a/samples/PriorityQueues/PriorityQueues.Consumer/PriorityQueues.Consumer.csproj +++ /dev/null @@ -1,18 +0,0 @@ - - - - Exe - netcoreapp2.0 - - - - - - - - - - - - - diff --git a/samples/PriorityQueues/PriorityQueues.Consumer/Program.cs b/samples/PriorityQueues/PriorityQueues.Consumer/Program.cs deleted file mode 100644 index 6ba18e5a7..000000000 --- a/samples/PriorityQueues/PriorityQueues.Consumer/Program.cs +++ /dev/null @@ -1,30 +0,0 @@ -using System; -using System.Collections; -using System.Collections.Generic; -using ServiceConnect; -using ServiceConnect.Container.StructureMap; - -namespace PriorityQueues.Consumer -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Consumer ***********"); - - IDictionary csArgs = new Dictionary {{"x-max-priority", (int)10 }}; - - var bus = Bus.Initialize(config => - { - config.SetContainerType(); - config.SetNumberOfClients(1); - config.TransportSettings.ClientSettings.Add("Arguments", csArgs); - config.SetErrorQueueName("PriorityQueues.Consumer.Errors"); - }); - - Console.ReadLine(); - - bus.Dispose(); - } - } -} diff --git a/samples/PriorityQueues/PriorityQueues.Messages/MyMessage.cs b/samples/PriorityQueues/PriorityQueues.Messages/MyMessage.cs deleted file mode 100644 index 52a4fc39b..000000000 --- a/samples/PriorityQueues/PriorityQueues.Messages/MyMessage.cs +++ /dev/null @@ -1,14 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace PriorityQueues.Messages -{ - public class MyMessage : Message - { - public MyMessage(Guid correlationId) : base(correlationId) - { - } - - public string Name { get; set; } - } -} diff --git a/samples/PriorityQueues/PriorityQueues.Messages/PriorityQueues.Messages.csproj b/samples/PriorityQueues/PriorityQueues.Messages/PriorityQueues.Messages.csproj deleted file mode 100644 index e0252baae..000000000 --- a/samples/PriorityQueues/PriorityQueues.Messages/PriorityQueues.Messages.csproj +++ /dev/null @@ -1,11 +0,0 @@ - - - - netcoreapp2.0 - - - - - - - diff --git a/samples/PriorityQueues/PriorityQueues.Producer/PriorityQueues.Producer.csproj b/samples/PriorityQueues/PriorityQueues.Producer/PriorityQueues.Producer.csproj deleted file mode 100644 index 278900b71..000000000 --- a/samples/PriorityQueues/PriorityQueues.Producer/PriorityQueues.Producer.csproj +++ /dev/null @@ -1,17 +0,0 @@ - - - - Exe - netcoreapp2.0 - - - - - - - - - - - - diff --git a/samples/PriorityQueues/PriorityQueues.Producer/Program.cs b/samples/PriorityQueues/PriorityQueues.Producer/Program.cs deleted file mode 100644 index 5212ff7b0..000000000 --- a/samples/PriorityQueues/PriorityQueues.Producer/Program.cs +++ /dev/null @@ -1,44 +0,0 @@ -using System; -using PriorityQueues.Messages; -using ServiceConnect; - -namespace PriorityQueues.Producer -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Producer ***********"); - - var bus = Bus.Initialize(config => - { - config.AddQueueMapping(typeof(MyMessage), "PriorityQueues.Consumer"); - }); - - while (true) - { - Console.WriteLine("Press enter to send messages"); - Console.ReadLine(); - - Console.WriteLine("Start: {0}", DateTime.Now); - - for (int i = 0; i < 100; i++) - { - var id = Guid.NewGuid(); - bus.Send("PriorityQueues.Consumer", new MyMessage(id) - { - Name = "Low Priority Message" - }); - } - - bus.Send("PriorityQueues.Consumer", new MyMessage(Guid.NewGuid()) - { - Name = "Hi Priority Message" - }, new System.Collections.Generic.Dictionary {{"Priority", "9"}}); - - Console.WriteLine("Sent messages"); - Console.WriteLine(""); - } - } - } -} diff --git a/samples/PriorityQueues/PriorityQueues.sln b/samples/PriorityQueues/PriorityQueues.sln deleted file mode 100644 index f6fa18cba..000000000 --- a/samples/PriorityQueues/PriorityQueues.sln +++ /dev/null @@ -1,37 +0,0 @@ - -Microsoft Visual Studio Solution File, Format Version 12.00 -# Visual Studio 15 -VisualStudioVersion = 15.0.27130.2020 -MinimumVisualStudioVersion = 10.0.40219.1 -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PriorityQueues.Producer", "PriorityQueues.Producer\PriorityQueues.Producer.csproj", "{DDCF701E-BF87-4C8A-A970-51D772C0FB88}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PriorityQueues.Consumer", "PriorityQueues.Consumer\PriorityQueues.Consumer.csproj", "{ED68B3A1-F2F0-4AC6-9D77-8F81A89907E1}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PriorityQueues.Messages", "PriorityQueues.Messages\PriorityQueues.Messages.csproj", "{FA4B0124-F501-49FC-81D7-B1FC2E221AE7}" -EndProject -Global - GlobalSection(SolutionConfigurationPlatforms) = preSolution - Debug|Any CPU = Debug|Any CPU - Release|Any CPU = Release|Any CPU - EndGlobalSection - GlobalSection(ProjectConfigurationPlatforms) = postSolution - {DDCF701E-BF87-4C8A-A970-51D772C0FB88}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {DDCF701E-BF87-4C8A-A970-51D772C0FB88}.Debug|Any CPU.Build.0 = Debug|Any CPU - {DDCF701E-BF87-4C8A-A970-51D772C0FB88}.Release|Any CPU.ActiveCfg = Release|Any CPU - {DDCF701E-BF87-4C8A-A970-51D772C0FB88}.Release|Any CPU.Build.0 = Release|Any CPU - {ED68B3A1-F2F0-4AC6-9D77-8F81A89907E1}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {ED68B3A1-F2F0-4AC6-9D77-8F81A89907E1}.Debug|Any CPU.Build.0 = Debug|Any CPU - {ED68B3A1-F2F0-4AC6-9D77-8F81A89907E1}.Release|Any CPU.ActiveCfg = Release|Any CPU - {ED68B3A1-F2F0-4AC6-9D77-8F81A89907E1}.Release|Any CPU.Build.0 = Release|Any CPU - {FA4B0124-F501-49FC-81D7-B1FC2E221AE7}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {FA4B0124-F501-49FC-81D7-B1FC2E221AE7}.Debug|Any CPU.Build.0 = Debug|Any CPU - {FA4B0124-F501-49FC-81D7-B1FC2E221AE7}.Release|Any CPU.ActiveCfg = Release|Any CPU - {FA4B0124-F501-49FC-81D7-B1FC2E221AE7}.Release|Any CPU.Build.0 = Release|Any CPU - EndGlobalSection - GlobalSection(SolutionProperties) = preSolution - HideSolutionNode = FALSE - EndGlobalSection - GlobalSection(ExtensibilityGlobals) = postSolution - SolutionGuid = {8BA51C7F-8CB2-4CB9-ACE1-3BDDB5D27C30} - EndGlobalSection -EndGlobal diff --git a/samples/PriorityQueues/PriorityQueues/PriorityQueues.csproj b/samples/PriorityQueues/PriorityQueues/PriorityQueues.csproj deleted file mode 100644 index ce1697ae8..000000000 --- a/samples/PriorityQueues/PriorityQueues/PriorityQueues.csproj +++ /dev/null @@ -1,8 +0,0 @@ - - - - Exe - netcoreapp2.0 - - - diff --git a/samples/PriorityQueues/PriorityQueues/Program.cs b/samples/PriorityQueues/PriorityQueues/Program.cs deleted file mode 100644 index 6d4c5958e..000000000 --- a/samples/PriorityQueues/PriorityQueues/Program.cs +++ /dev/null @@ -1,12 +0,0 @@ -using System; - -namespace PriorityQueues -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("Hello World!"); - } - } -} diff --git a/samples/ProcessManager/ProcessManager.Client/App.config b/samples/ProcessManager/ProcessManager.Client/App.config deleted file mode 100644 index d47da10ff..000000000 --- a/samples/ProcessManager/ProcessManager.Client/App.config +++ /dev/null @@ -1,10 +0,0 @@ - - - - - - - - - - diff --git a/samples/ProcessManager/ProcessManager.Client/ProcessManager.Client.csproj b/samples/ProcessManager/ProcessManager.Client/ProcessManager.Client.csproj deleted file mode 100644 index fad8663c7..000000000 --- a/samples/ProcessManager/ProcessManager.Client/ProcessManager.Client.csproj +++ /dev/null @@ -1,111 +0,0 @@ - - - - - Debug - AnyCPU - {0EF830C1-5419-4ADF-B2AA-DDBDAC74CD34} - Exe - Properties - ProcessManager.Client - ProcessManager.Client - v4.5.1 - 512 - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - - - {3cae1bd0-6978-4306-97a0-602755c763fb} - ProcessManager.Messages - - - - - \ No newline at end of file diff --git a/samples/ProcessManager/ProcessManager.Client/Program.cs b/samples/ProcessManager/ProcessManager.Client/Program.cs deleted file mode 100644 index 6630cf295..000000000 --- a/samples/ProcessManager/ProcessManager.Client/Program.cs +++ /dev/null @@ -1,47 +0,0 @@ -using System; -using System.Threading; -using ProcessManager.Messages; -using ServiceConnect; -using ServiceConnect.Interfaces; - -namespace ProcessManager.Client -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** ProcessManager.Client ***********"); - IBus bus = Bus.Initialize(config => - { - config.SetHost("localhost"); - }); - - Console.WriteLine("Press to start ProcessManager(s)"); - Console.ReadLine(); - - State.Pms = 1; - - while (State.Pms != 64) - { - Console.WriteLine("** {0}", State.Pms); - - State.Start = DateTime.UtcNow; - - for (int i = 1; i <= State.Pms; i++) - { - bus.Send("ProcessManager.Host", new StartProcessManagerMessage(Guid.NewGuid())); - } - - while (!State.Finished) - { - Thread.Sleep(500); - } - - State.Finished = false; - State.Pms = State.Pms * 2; - } - - Console.ReadLine(); - } - } -} diff --git a/samples/ProcessManager/ProcessManager.Client/Properties/AssemblyInfo.cs b/samples/ProcessManager/ProcessManager.Client/Properties/AssemblyInfo.cs deleted file mode 100644 index 70e714c68..000000000 --- a/samples/ProcessManager/ProcessManager.Client/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("ProcessManager.Client")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("ProcessManager.Client")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2015")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("112bf02c-4e9a-4bca-8f44-28da77f6dc8d")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/ProcessManager/ProcessManager.Client/ResponseHandler.cs b/samples/ProcessManager/ProcessManager.Client/ResponseHandler.cs deleted file mode 100644 index 45c4c14ba..000000000 --- a/samples/ProcessManager/ProcessManager.Client/ResponseHandler.cs +++ /dev/null @@ -1,25 +0,0 @@ -using System; -using ProcessManager.Client; -using ProcessManager.Messages; -using ServiceConnect.Interfaces; - -namespace ProcessManager.Process2 -{ - public class ProcessManagerFinishedHandler : IMessageHandler - { - static int count; - - public void Execute(ProcessManagerFinishedMessage message) - { - count++; - if (count == State.Pms) - { - count = 0; - Console.WriteLine("{0} - {1}", State.Pms, (DateTime.UtcNow - State.Start).TotalMilliseconds); - State.Finished = true; - } - } - - public IConsumeContext Context { get; set; } - } -} diff --git a/samples/ProcessManager/ProcessManager.Client/State.cs b/samples/ProcessManager/ProcessManager.Client/State.cs deleted file mode 100644 index d20429277..000000000 --- a/samples/ProcessManager/ProcessManager.Client/State.cs +++ /dev/null @@ -1,11 +0,0 @@ -using System; - -namespace ProcessManager.Client -{ - public static class State - { - public static DateTime Start { get; set; } - public static int Pms { get; set; } - public static bool Finished { get; internal set; } - } -} \ No newline at end of file diff --git a/samples/ProcessManager/ProcessManager.Host/App.config b/samples/ProcessManager/ProcessManager.Host/App.config deleted file mode 100644 index 6153073d9..000000000 --- a/samples/ProcessManager/ProcessManager.Host/App.config +++ /dev/null @@ -1,7 +0,0 @@ - - - - - - - diff --git a/samples/ProcessManager/ProcessManager.Host/Finder.cs b/samples/ProcessManager/ProcessManager.Host/Finder.cs deleted file mode 100644 index 7683bda20..000000000 --- a/samples/ProcessManager/ProcessManager.Host/Finder.cs +++ /dev/null @@ -1,241 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; -using System.Linq; -using System.Linq.Expressions; -using System.Reflection; -using System.Security.Cryptography.X509Certificates; -using System.Threading; -using MongoDB.Bson.Serialization; -using MongoDB.Driver; -using MongoDB.Driver.Builders; -using ProcessManager.Messages; -using ServiceConnect.Interfaces; - -namespace Ruffer.Reporting.SqlTransformation -{ - /// - /// MonoDb implementation of IProcessManagerFinder. - /// - public class Finder : IProcessManagerFinder - { - private readonly MongoDatabase _mongoDatabase; - private const string TimeoutsCollectionName = "Timeouts"; - - public Finder(string connectionString, string databaseName) - { - var mongoClient = new MongoClient(connectionString); - MongoServer server = mongoClient.GetServer(); - _mongoDatabase = server.GetDatabase(databaseName); - } - - - /// - /// Find existing instance of ProcessManager - /// - /// - /// - /// - /// - public IPersistanceData FindData(IProcessManagerPropertyMapper mapper, Message message) where T : class, IProcessManagerData - { - if (message is StartProcessManagerMessage) - { - return null; - } - - var mapping = mapper.Mappings.FirstOrDefault(m => m.MessageType == message.GetType()) ?? - mapper.Mappings.First(m => m.MessageType == typeof(Message)); - - var collectionName = typeof(T).Name; - MongoCollection collection = _mongoDatabase.GetCollection(collectionName); - - object msgPropValue = mapping.MessageProp.Invoke(message); - if (null == msgPropValue) - { - throw new ArgumentException("Message property expression evaluates to null"); - } - - //Left - ParameterExpression pe = Expression.Parameter(typeof(MyMongoData), "t"); - Expression left = Expression.Property(pe, typeof(MyMongoData).GetTypeInfo().GetProperty("Data")); - foreach (var prop in mapping.PropertiesHierarchy.Reverse()) - { - left = Expression.Property(left, left.Type, prop.Key); - } - - //Right - Expression right = Expression.Constant(msgPropValue, msgPropValue.GetType()); - - Expression expression; - - try - { - expression = Expression.Equal(left, right); - } - catch (InvalidOperationException ex) - { - throw new Exception("Mapped incompatible types of ProcessManager Data and Message properties.", ex); - } - - var lambda = Expression.Lambda, bool>>(expression, pe); - IMongoQuery query = Query>.Where(lambda); - - - // check if data is locked - FindAndModifyResult result = collection.FindAndModify(new FindAndModifyArgs - { - Query = Query.And( - Query.Or( - Query.EQ("Locked", false), - Query.LTE("LockTimeout", DateTime.UtcNow) - ), - query - ), - Update = Update.Combine( - Update.Set("Locked", true), - Update.Set("LockTimeout", DateTime.UtcNow.AddSeconds(30)) - ) - }); - - if (result.ModifiedDocument == null) - { - // spin until lock is released - while (true) - { - result = collection.FindAndModify(new FindAndModifyArgs - { - Query = Query.And( - Query.Or( - Query.EQ("Locked", false), - Query.LTE("LockTimeout", DateTime.UtcNow) - ), - query - ), - Update = Update.Combine( - Update.Set("Locked", true), - Update.Set("LockTimeout", DateTime.UtcNow.AddSeconds(30)) - ) - }); - - // Found unlocked data - if (result.ModifiedDocument != null) - { - break; - } - - Thread.Sleep(100); - } - } - - return result.GetModifiedDocumentAs>(); - } - - /// - /// Create new instance of ProcessManager - /// When multiple threads try to create new ProcessManager instance, only the first one is allowed. - /// All subsequent threads will update data instead. - /// - /// - public void InsertData(IProcessManagerData data) - { - var collectionName = GetCollectionName(data); - - MongoCollection collection = _mongoDatabase.GetCollection(collectionName); - - var mongoDbData = new MyMongoData - { - Data = data, - Version = 1, - Id = Guid.NewGuid(), - Locked = false - }; - - collection.FindAndModify(Query.EQ("CorrelationId", mongoDbData.Data.CorrelationId), SortBy.Null, Update.Replace(mongoDbData), false, true); - } - - private class MyMongoData : IPersistanceData - { - public Guid Id { get; set; } - public int Version { get; set; } - public T Data { get; set; } - public string Name { get; set; } - public bool Locked { get; set; } - } - - /// - /// Update data of existing ProcessManager. - /// - /// - /// - public void UpdateData(IPersistanceData persistanceData) where T : class, IProcessManagerData - { - var collectionName = GetCollectionName(persistanceData.Data); - - MongoCollection collection = _mongoDatabase.GetCollection(collectionName); - - var versionData = (MyMongoData)persistanceData; - versionData.Locked = false; - - int currentVersion = versionData.Version; - var query = Query.And(Query.EQ("Data.CorrelationId", versionData.Data.CorrelationId), Query.EQ("Version", currentVersion)); - versionData.Version += 1; - var result = collection.FindAndModify(query, SortBy.Null, Update.Replace(versionData)); - - if (result.ModifiedDocument == null) - throw new ArgumentException(string.Format("Possible Concurrency Error. ProcessManagerData with CorrelationId {0} and Version {1} could not be updated.", versionData.Data.CorrelationId, versionData.Version)); - } - - /// - /// Removes existing instance of ProcessManager from the database. - /// - /// - public void DeleteData(IPersistanceData persistanceData) where T : class, IProcessManagerData - { - var collectionName = GetCollectionName(persistanceData.Data); - - MongoCollection collection = _mongoDatabase.GetCollection(collectionName); - - collection.Remove(Query.EQ("Data.CorrelationId", persistanceData.Data.CorrelationId)); - } - - private static string GetCollectionName(T data) where T : class, IProcessManagerData - { - Type typeParameterType = data.GetType(); - var collectionName = typeParameterType.Name; - return collectionName; - } - - public void InsertTimeout(TimeoutData timeoutData) - { - throw new NotImplementedException(); - } - - public TimeoutsBatch GetTimeoutsBatch() - { - throw new NotImplementedException(); - } - - public void RemoveDispatchedTimeout(Guid id) - { - throw new NotImplementedException(); - } - - public event TimeoutInsertedDelegate TimeoutInserted; - } -} diff --git a/samples/ProcessManager/ProcessManager.Host/MyProcessManager.cs b/samples/ProcessManager/ProcessManager.Host/MyProcessManager.cs deleted file mode 100644 index d8eb72f6c..000000000 --- a/samples/ProcessManager/ProcessManager.Host/MyProcessManager.cs +++ /dev/null @@ -1,62 +0,0 @@ -using System; -using ProcessManager.Messages; -using ServiceConnect.Interfaces; - -namespace ProcessManager.Host -{ - - public class MyProcessManagerData : IProcessManagerData - { - public Guid CorrelationId { get; set; } - public bool Process1ResponseMessage { get; set; } - public bool Process2ResponseMessage { get; set; } - public int Count { get; set; } - public int Total { get; set; } - } - - public class MyProcessManager : ServiceConnect.Core.ProcessManager, - IStartProcessManager, - IMessageHandler, - IMessageHandler - { - private readonly IBus _bus; - - public MyProcessManager(IBus bus) - { - _bus = bus; - } - - public void Execute(StartProcessManagerMessage message) - { - Data.CorrelationId = message.CorrelationId; - - Data.Total = 1000; - Data.Count = 0; - for (int i = 0; i < Data.Total; i++) - { - _bus.Send("ProcessManager.Process1", new Process1RequestMessage(message.CorrelationId)); - _bus.Send("ProcessManager.Process2", new Process2RequestMessage(message.CorrelationId)); - } - } - - public void Execute(Process1ResponseMessage message) - { - Data.Count++; - if (Data.Count == (Data.Total * 2)) - { - _bus.Send("ProcessManager.Client", new ProcessManagerFinishedMessage(message.CorrelationId)); - MarkAsComplete(); - } - } - - public void Execute(Process2ResponseMessage message) - { - Data.Count++; - if (Data.Count == (Data.Total * 2)) - { - _bus.Send("ProcessManager.Client", new ProcessManagerFinishedMessage(message.CorrelationId)); - MarkAsComplete(); - } - } - } -} diff --git a/samples/ProcessManager/ProcessManager.Host/ProcessManager.Host.csproj b/samples/ProcessManager/ProcessManager.Host/ProcessManager.Host.csproj deleted file mode 100644 index 050927d59..000000000 --- a/samples/ProcessManager/ProcessManager.Host/ProcessManager.Host.csproj +++ /dev/null @@ -1,117 +0,0 @@ - - - - - Debug - AnyCPU - {9B926D86-ED3F-4252-BF7A-99376320F79C} - Exe - Properties - ProcessManager.Host - ProcessManager.Host - v4.5.1 - 512 - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - ..\..\..\src\ServiceConnect.Persistance.MongoDb\bin\Debug\net451\MongoDB.Bson.dll - - - ..\..\..\src\ServiceConnect.Persistance.MongoDb\bin\Debug\net451\MongoDB.Driver.dll - - - ..\..\..\src\ServiceConnect.Persistance.MongoDb\bin\Debug\net451\MongoDB.Driver.Core.dll - - - ..\..\..\src\ServiceConnect.Persistance.MongoDb\bin\Debug\net451\MongoDB.Driver.Legacy.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect.Persistance.MongoDb\bin\Debug\net451\ServiceConnect.Persistance.MongoDb.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - - - - - {3CAE1BD0-6978-4306-97A0-602755C763FB} - ProcessManager.Messages - - - - - \ No newline at end of file diff --git a/samples/ProcessManager/ProcessManager.Host/Program.cs b/samples/ProcessManager/ProcessManager.Host/Program.cs deleted file mode 100644 index 9c416e545..000000000 --- a/samples/ProcessManager/ProcessManager.Host/Program.cs +++ /dev/null @@ -1,24 +0,0 @@ -using System; -using Ruffer.Reporting.SqlTransformation; -using ServiceConnect; -using ServiceConnect.Persistance.MongoDb; - -namespace ProcessManager.Host -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** ProcessManager.Host ***********"); - Bus.Initialize(config => - { - config.SetNumberOfClients(1); - //config.SetProcessManagerFinder(); - config.SetProcessManagerFinder(); - config.SetHost("localhost"); - }); - - Console.ReadLine(); - } - } -} diff --git a/samples/ProcessManager/ProcessManager.Host/Properties/AssemblyInfo.cs b/samples/ProcessManager/ProcessManager.Host/Properties/AssemblyInfo.cs deleted file mode 100644 index d392deafb..000000000 --- a/samples/ProcessManager/ProcessManager.Host/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("ProcessManager.Host")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("ProcessManager.Host")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2015")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("3cf3008b-f4fc-49a2-9a0b-1acdcc730bc7")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/ProcessManager/ProcessManager.Host/SingletonProcessManagerFinder.cs b/samples/ProcessManager/ProcessManager.Host/SingletonProcessManagerFinder.cs deleted file mode 100644 index 64d277798..000000000 --- a/samples/ProcessManager/ProcessManager.Host/SingletonProcessManagerFinder.cs +++ /dev/null @@ -1,59 +0,0 @@ -using System; -using ServiceConnect.Interfaces; -using ServiceConnect.Persistance.MongoDb; - -namespace Ruffer.Reporting.SqlTransformation -{ - public class SingletonProcessManagerFinder : IProcessManagerFinder - { - private static readonly MongoDbProcessManagerFinder Finder; - - static SingletonProcessManagerFinder() - { - Finder = new MongoDbProcessManagerFinder( - "mongodb://localhost/", - "TestPM"); - } - - public SingletonProcessManagerFinder(string connectionString, string databaseName) - { - } - - public IPersistanceData FindData(IProcessManagerPropertyMapper mapper, Message message) where T : class, IProcessManagerData - { - return Finder.FindData(mapper, message); - } - - public void InsertData(IProcessManagerData data) - { - Finder.InsertData(data); - } - - public void UpdateData(IPersistanceData data) where T : class, IProcessManagerData - { - Finder.UpdateData(data); - } - - public void DeleteData(IPersistanceData data) where T : class, IProcessManagerData - { - Finder.DeleteData(data); - } - - public void InsertTimeout(TimeoutData timeoutData) - { - throw new NotImplementedException(); - } - - public TimeoutsBatch GetTimeoutsBatch() - { - throw new NotImplementedException(); - } - - public void RemoveDispatchedTimeout(Guid id) - { - throw new NotImplementedException(); - } - - public event TimeoutInsertedDelegate TimeoutInserted; - } -} \ No newline at end of file diff --git a/samples/ProcessManager/ProcessManager.Host/packages.config b/samples/ProcessManager/ProcessManager.Host/packages.config deleted file mode 100644 index cc862a6e0..000000000 --- a/samples/ProcessManager/ProcessManager.Host/packages.config +++ /dev/null @@ -1,4 +0,0 @@ - - - - \ No newline at end of file diff --git a/samples/ProcessManager/ProcessManager.Messages/Process1RequestMessage.cs b/samples/ProcessManager/ProcessManager.Messages/Process1RequestMessage.cs deleted file mode 100644 index 6625b654a..000000000 --- a/samples/ProcessManager/ProcessManager.Messages/Process1RequestMessage.cs +++ /dev/null @@ -1,14 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace ProcessManager.Messages -{ - public class Process1RequestMessage : Message - { - public Process1RequestMessage(Guid correlationId) : base(correlationId) - { - } - - public int ProcessId { get; set; } - } -} diff --git a/samples/ProcessManager/ProcessManager.Messages/Process1ResponseMessage.cs b/samples/ProcessManager/ProcessManager.Messages/Process1ResponseMessage.cs deleted file mode 100644 index 11b2595a3..000000000 --- a/samples/ProcessManager/ProcessManager.Messages/Process1ResponseMessage.cs +++ /dev/null @@ -1,13 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace ProcessManager.Messages -{ - - public class Process1ResponseMessage : Message - { - public Process1ResponseMessage(Guid correlationId) : base(correlationId) - { - } - } -} diff --git a/samples/ProcessManager/ProcessManager.Messages/Process2RequestMessage.cs b/samples/ProcessManager/ProcessManager.Messages/Process2RequestMessage.cs deleted file mode 100644 index 26c111102..000000000 --- a/samples/ProcessManager/ProcessManager.Messages/Process2RequestMessage.cs +++ /dev/null @@ -1,13 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace ProcessManager.Messages -{ - public class Process2RequestMessage : Message - { - public Process2RequestMessage(Guid correlationId) : base(correlationId) - { - } - - } -} diff --git a/samples/ProcessManager/ProcessManager.Messages/Process2ResponseMessage.cs b/samples/ProcessManager/ProcessManager.Messages/Process2ResponseMessage.cs deleted file mode 100644 index eb1964a62..000000000 --- a/samples/ProcessManager/ProcessManager.Messages/Process2ResponseMessage.cs +++ /dev/null @@ -1,13 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace ProcessManager.Messages -{ - - public class Process2ResponseMessage : Message - { - public Process2ResponseMessage(Guid correlationId) : base(correlationId) - { - } - } -} diff --git a/samples/ProcessManager/ProcessManager.Messages/ProcessManager.Messages.csproj b/samples/ProcessManager/ProcessManager.Messages/ProcessManager.Messages.csproj deleted file mode 100644 index 7b0fb999d..000000000 --- a/samples/ProcessManager/ProcessManager.Messages/ProcessManager.Messages.csproj +++ /dev/null @@ -1,63 +0,0 @@ - - - - - Debug - AnyCPU - {3CAE1BD0-6978-4306-97A0-602755C763FB} - Library - Properties - ProcessManager.Messages - ProcessManager.Messages - v4.5.1 - 512 - - - - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - - - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/samples/ProcessManager/ProcessManager.Messages/ProcessManagerFinishedMessage.cs b/samples/ProcessManager/ProcessManager.Messages/ProcessManagerFinishedMessage.cs deleted file mode 100644 index a5e6f741e..000000000 --- a/samples/ProcessManager/ProcessManager.Messages/ProcessManagerFinishedMessage.cs +++ /dev/null @@ -1,13 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace ProcessManager.Messages -{ - public class ProcessManagerFinishedMessage : Message - { - public ProcessManagerFinishedMessage(Guid correlationId) : base(correlationId) - { - } - - } -} diff --git a/samples/ProcessManager/ProcessManager.Messages/Properties/AssemblyInfo.cs b/samples/ProcessManager/ProcessManager.Messages/Properties/AssemblyInfo.cs deleted file mode 100644 index 1a64d77c6..000000000 --- a/samples/ProcessManager/ProcessManager.Messages/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("ProcessManager.Messages")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("ProcessManager.Messages")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2015")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("c1b456e8-ce73-437f-a74b-b462f65a1ef4")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/ProcessManager/ProcessManager.Messages/StartProcessManagerMessage.cs b/samples/ProcessManager/ProcessManager.Messages/StartProcessManagerMessage.cs deleted file mode 100644 index 840381ed4..000000000 --- a/samples/ProcessManager/ProcessManager.Messages/StartProcessManagerMessage.cs +++ /dev/null @@ -1,13 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace ProcessManager.Messages -{ - public class StartProcessManagerMessage : Message - { - public StartProcessManagerMessage(Guid correlationId) : base(correlationId) - { - } - - } -} diff --git a/samples/ProcessManager/ProcessManager.Process1/App.config b/samples/ProcessManager/ProcessManager.Process1/App.config deleted file mode 100644 index d0feca6f7..000000000 --- a/samples/ProcessManager/ProcessManager.Process1/App.config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - diff --git a/samples/ProcessManager/ProcessManager.Process1/Process1RequestMessageHandler.cs b/samples/ProcessManager/ProcessManager.Process1/Process1RequestMessageHandler.cs deleted file mode 100644 index 7454e58c5..000000000 --- a/samples/ProcessManager/ProcessManager.Process1/Process1RequestMessageHandler.cs +++ /dev/null @@ -1,23 +0,0 @@ -using System; -using ProcessManager.Messages; -using ServiceConnect.Interfaces; - -namespace ProcessManager.Process1 -{ - public class Process1RequestMessageHandler : IMessageHandler - { - private readonly IBus _bus; - - public Process1RequestMessageHandler(IBus bus) - { - _bus = bus; - } - - public void Execute(Process1RequestMessage message) - { - _bus.Send("ProcessManager.Host", new Process1ResponseMessage(message.CorrelationId)); - } - - public IConsumeContext Context { get; set; } - } -} diff --git a/samples/ProcessManager/ProcessManager.Process1/ProcessManager.Process1.csproj b/samples/ProcessManager/ProcessManager.Process1/ProcessManager.Process1.csproj deleted file mode 100644 index ffaa674d3..000000000 --- a/samples/ProcessManager/ProcessManager.Process1/ProcessManager.Process1.csproj +++ /dev/null @@ -1,110 +0,0 @@ - - - - - Debug - AnyCPU - {4AD08DDB-DE42-419B-A705-4D34550F5A4A} - Exe - Properties - ProcessManager.Process1 - ProcessManager.Process1 - v4.5.1 - 512 - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - - {3CAE1BD0-6978-4306-97A0-602755C763FB} - ProcessManager.Messages - - - - - \ No newline at end of file diff --git a/samples/ProcessManager/ProcessManager.Process1/Program.cs b/samples/ProcessManager/ProcessManager.Process1/Program.cs deleted file mode 100644 index 68085c6a3..000000000 --- a/samples/ProcessManager/ProcessManager.Process1/Program.cs +++ /dev/null @@ -1,21 +0,0 @@ -using System; -using System.Collections.Generic; -using ProcessManager.Messages; -using ServiceConnect; -using ServiceConnect.Interfaces; - -namespace ProcessManager.Process1 -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** ProcessManager.Process1 ***********"); - Bus.Initialize(config => - { - config.SetNumberOfClients(20); - config.SetHost("localhost"); - }); - } - } -} diff --git a/samples/ProcessManager/ProcessManager.Process1/Properties/AssemblyInfo.cs b/samples/ProcessManager/ProcessManager.Process1/Properties/AssemblyInfo.cs deleted file mode 100644 index a895a8898..000000000 --- a/samples/ProcessManager/ProcessManager.Process1/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("ProcessManager.Process1")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("ProcessManager.Process1")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2015")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("386b0a3f-5eed-429e-bbde-0ca06552d889")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/ProcessManager/ProcessManager.Process2/App.config b/samples/ProcessManager/ProcessManager.Process2/App.config deleted file mode 100644 index d0feca6f7..000000000 --- a/samples/ProcessManager/ProcessManager.Process2/App.config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - diff --git a/samples/ProcessManager/ProcessManager.Process2/Process2RequestMessageHandler.cs b/samples/ProcessManager/ProcessManager.Process2/Process2RequestMessageHandler.cs deleted file mode 100644 index 10f5ac8e0..000000000 --- a/samples/ProcessManager/ProcessManager.Process2/Process2RequestMessageHandler.cs +++ /dev/null @@ -1,23 +0,0 @@ -using System; -using ProcessManager.Messages; -using ServiceConnect.Interfaces; - -namespace ProcessManager.Process2 -{ - public class Process2RequestMessageHandler : IMessageHandler - { - private readonly IBus _bus; - - public Process2RequestMessageHandler(IBus bus) - { - _bus = bus; - } - - public void Execute(Process2RequestMessage message) - { - _bus.Send("ProcessManager.Host", new Process2ResponseMessage(message.CorrelationId)); - } - - public IConsumeContext Context { get; set; } - } -} diff --git a/samples/ProcessManager/ProcessManager.Process2/ProcessManager.Process2.csproj b/samples/ProcessManager/ProcessManager.Process2/ProcessManager.Process2.csproj deleted file mode 100644 index 541f591b1..000000000 --- a/samples/ProcessManager/ProcessManager.Process2/ProcessManager.Process2.csproj +++ /dev/null @@ -1,110 +0,0 @@ - - - - - Debug - AnyCPU - {4C401632-26A3-4AF9-8BFC-431DDC02F790} - Exe - Properties - ProcessManager.Process2 - ProcessManager.Process2 - v4.5.1 - 512 - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - - {3CAE1BD0-6978-4306-97A0-602755C763FB} - ProcessManager.Messages - - - - - \ No newline at end of file diff --git a/samples/ProcessManager/ProcessManager.Process2/Program.cs b/samples/ProcessManager/ProcessManager.Process2/Program.cs deleted file mode 100644 index 78643138e..000000000 --- a/samples/ProcessManager/ProcessManager.Process2/Program.cs +++ /dev/null @@ -1,21 +0,0 @@ -using System; -using System.Collections.Generic; -using ProcessManager.Messages; -using ServiceConnect; -using ServiceConnect.Interfaces; - -namespace ProcessManager.Process2 -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** ProcessManager.Process2 ***********"); - Bus.Initialize(config => - { - config.SetNumberOfClients(20); - config.SetHost("localhost"); - }); - } - } -} diff --git a/samples/ProcessManager/ProcessManager.Process2/Properties/AssemblyInfo.cs b/samples/ProcessManager/ProcessManager.Process2/Properties/AssemblyInfo.cs deleted file mode 100644 index 04e023a9c..000000000 --- a/samples/ProcessManager/ProcessManager.Process2/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("ProcessManager.Process2")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("ProcessManager.Process2")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2015")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("1914fb06-134a-4f73-ab25-71299dcb4715")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/ProcessManager/ProcessManager.sln b/samples/ProcessManager/ProcessManager.sln deleted file mode 100644 index e606ffe9b..000000000 --- a/samples/ProcessManager/ProcessManager.sln +++ /dev/null @@ -1,46 +0,0 @@ - -Microsoft Visual Studio Solution File, Format Version 12.00 -# Visual Studio 14 -VisualStudioVersion = 14.0.25420.1 -MinimumVisualStudioVersion = 10.0.40219.1 -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ProcessManager.Host", "ProcessManager.Host\ProcessManager.Host.csproj", "{9B926D86-ED3F-4252-BF7A-99376320F79C}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ProcessManager.Client", "ProcessManager.Client\ProcessManager.Client.csproj", "{0EF830C1-5419-4ADF-B2AA-DDBDAC74CD34}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ProcessManager.Process1", "ProcessManager.Process1\ProcessManager.Process1.csproj", "{4AD08DDB-DE42-419B-A705-4D34550F5A4A}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ProcessManager.Process2", "ProcessManager.Process2\ProcessManager.Process2.csproj", "{4C401632-26A3-4AF9-8BFC-431DDC02F790}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ProcessManager.Messages", "ProcessManager.Messages\ProcessManager.Messages.csproj", "{3CAE1BD0-6978-4306-97A0-602755C763FB}" -EndProject -Global - GlobalSection(SolutionConfigurationPlatforms) = preSolution - Debug|Any CPU = Debug|Any CPU - Release|Any CPU = Release|Any CPU - EndGlobalSection - GlobalSection(ProjectConfigurationPlatforms) = postSolution - {9B926D86-ED3F-4252-BF7A-99376320F79C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {9B926D86-ED3F-4252-BF7A-99376320F79C}.Debug|Any CPU.Build.0 = Debug|Any CPU - {9B926D86-ED3F-4252-BF7A-99376320F79C}.Release|Any CPU.ActiveCfg = Release|Any CPU - {9B926D86-ED3F-4252-BF7A-99376320F79C}.Release|Any CPU.Build.0 = Release|Any CPU - {0EF830C1-5419-4ADF-B2AA-DDBDAC74CD34}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {0EF830C1-5419-4ADF-B2AA-DDBDAC74CD34}.Debug|Any CPU.Build.0 = Debug|Any CPU - {0EF830C1-5419-4ADF-B2AA-DDBDAC74CD34}.Release|Any CPU.ActiveCfg = Release|Any CPU - {0EF830C1-5419-4ADF-B2AA-DDBDAC74CD34}.Release|Any CPU.Build.0 = Release|Any CPU - {4AD08DDB-DE42-419B-A705-4D34550F5A4A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {4AD08DDB-DE42-419B-A705-4D34550F5A4A}.Debug|Any CPU.Build.0 = Debug|Any CPU - {4AD08DDB-DE42-419B-A705-4D34550F5A4A}.Release|Any CPU.ActiveCfg = Release|Any CPU - {4AD08DDB-DE42-419B-A705-4D34550F5A4A}.Release|Any CPU.Build.0 = Release|Any CPU - {4C401632-26A3-4AF9-8BFC-431DDC02F790}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {4C401632-26A3-4AF9-8BFC-431DDC02F790}.Debug|Any CPU.Build.0 = Debug|Any CPU - {4C401632-26A3-4AF9-8BFC-431DDC02F790}.Release|Any CPU.ActiveCfg = Release|Any CPU - {4C401632-26A3-4AF9-8BFC-431DDC02F790}.Release|Any CPU.Build.0 = Release|Any CPU - {3CAE1BD0-6978-4306-97A0-602755C763FB}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {3CAE1BD0-6978-4306-97A0-602755C763FB}.Debug|Any CPU.Build.0 = Debug|Any CPU - {3CAE1BD0-6978-4306-97A0-602755C763FB}.Release|Any CPU.ActiveCfg = Release|Any CPU - {3CAE1BD0-6978-4306-97A0-602755C763FB}.Release|Any CPU.Build.0 = Release|Any CPU - EndGlobalSection - GlobalSection(SolutionProperties) = preSolution - HideSolutionNode = FALSE - EndGlobalSection -EndGlobal diff --git a/samples/PublishSubscribe/.nuget/NuGet.Config b/samples/PublishSubscribe/.nuget/NuGet.Config deleted file mode 100644 index 67f8ea046..000000000 --- a/samples/PublishSubscribe/.nuget/NuGet.Config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - \ No newline at end of file diff --git a/samples/PublishSubscribe/.nuget/NuGet.exe b/samples/PublishSubscribe/.nuget/NuGet.exe deleted file mode 100644 index 9cba6edbf..000000000 Binary files a/samples/PublishSubscribe/.nuget/NuGet.exe and /dev/null differ diff --git a/samples/PublishSubscribe/.nuget/NuGet.targets b/samples/PublishSubscribe/.nuget/NuGet.targets deleted file mode 100644 index 2c3545bc7..000000000 --- a/samples/PublishSubscribe/.nuget/NuGet.targets +++ /dev/null @@ -1,151 +0,0 @@ - - - - $(MSBuildProjectDirectory)\..\ - - - false - - - false - - - true - - - false - - - - - - - - - - - $([System.IO.Path]::Combine($(SolutionDir), ".nuget")) - - - - - $(SolutionDir).nuget - - - - packages.$(MSBuildProjectName.Replace(' ', '_')).config - - - - - - $(PackagesProjectConfig) - - - - - packages.config - - - - - - - $(NuGetToolsPath)\NuGet.exe - @(PackageSource) - - "$(NuGetExePath)" - mono --runtime=v4.0.30319 $(NuGetExePath) - - $(TargetDir.Trim('\\')) - - -RequireConsent - -NonInteractive - - "$(SolutionDir) " - "$(SolutionDir)" - - - $(NuGetCommand) install "$(PackagesConfig)" -source "$(PackageSources)" $(NonInteractiveSwitch) $(RequireConsentSwitch) -solutionDir $(PaddedSolutionDir) - $(NuGetCommand) pack "$(ProjectPath)" -Properties "Configuration=$(Configuration);Platform=$(Platform)" $(NonInteractiveSwitch) -OutputDirectory "$(PackageOutputDir)" -symbols - - - - RestorePackages; - $(BuildDependsOn); - - - - - $(BuildDependsOn); - BuildPackage; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - diff --git a/samples/PublishSubscribe/PublishSubscribe.Consumer1/App.config b/samples/PublishSubscribe/PublishSubscribe.Consumer1/App.config deleted file mode 100644 index d23fe9d12..000000000 --- a/samples/PublishSubscribe/PublishSubscribe.Consumer1/App.config +++ /dev/null @@ -1,7 +0,0 @@ - - - - - - - diff --git a/samples/PublishSubscribe/PublishSubscribe.Consumer1/Program.cs b/samples/PublishSubscribe/PublishSubscribe.Consumer1/Program.cs deleted file mode 100644 index ec5d6d658..000000000 --- a/samples/PublishSubscribe/PublishSubscribe.Consumer1/Program.cs +++ /dev/null @@ -1,29 +0,0 @@ -using System; -using System.Runtime.InteropServices; -using ServiceConnect; - -namespace PublishSubscribe.Consumer1 -{ - class Program - { - static void Main(string[] args) - { - var message = new PublishSubscribe.Messages.PublishSubscribeMessage(Guid.NewGuid()); - var name = message.GetType().FullName; - - Console.WriteLine("*********** Consumer 1 ***********"); - var bus = Bus.Initialize(x => - { - x.ScanForMesssageHandlers = true; - x.SetQueueName("Consumer1"); - x.SetHost("localhost"); - }); - - bus.StartConsuming(); - - Console.ReadLine(); - - bus.Dispose(); - } - } -} diff --git a/samples/PublishSubscribe/PublishSubscribe.Consumer1/Properties/AssemblyInfo.cs b/samples/PublishSubscribe/PublishSubscribe.Consumer1/Properties/AssemblyInfo.cs deleted file mode 100644 index ca9bdb3ce..000000000 --- a/samples/PublishSubscribe/PublishSubscribe.Consumer1/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("PublishSubscribe.Consumer1")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("PublishSubscribe.Consumer1")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("157aa3f8-8c13-46bc-8651-1508665e9656")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/PublishSubscribe/PublishSubscribe.Consumer1/PublishSubscribe.Consumer1.csproj b/samples/PublishSubscribe/PublishSubscribe.Consumer1/PublishSubscribe.Consumer1.csproj deleted file mode 100644 index f82e8e937..000000000 --- a/samples/PublishSubscribe/PublishSubscribe.Consumer1/PublishSubscribe.Consumer1.csproj +++ /dev/null @@ -1,107 +0,0 @@ - - - - - Debug - AnyCPU - {16E01826-0CC6-4FD1-8AC7-7C5DF6A1C25B} - Exe - Properties - PublishSubscribe.Consumer1 - PublishSubscribe.Consumer1 - v4.5.1 - 512 - ..\ - true - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - - - {246bce79-4ba6-4be5-890e-e7014d59311e} - PublishSubscribe.Messages - - - - - - \ No newline at end of file diff --git a/samples/PublishSubscribe/PublishSubscribe.Consumer1/PublishSubscribeMessageHandler.cs b/samples/PublishSubscribe/PublishSubscribe.Consumer1/PublishSubscribeMessageHandler.cs deleted file mode 100644 index 67dc3ca17..000000000 --- a/samples/PublishSubscribe/PublishSubscribe.Consumer1/PublishSubscribeMessageHandler.cs +++ /dev/null @@ -1,17 +0,0 @@ -using System; -using PublishSubscribe.Messages; -using ServiceConnect.Interfaces; - -namespace PublishSubscribe.Consumer1 -{ - public class PublishSubscribeMessageHandler : IMessageHandler - { - public void Execute(PublishSubscribeMessage message) - { - Console.WriteLine("Consumer 1 Received Message - {0}", message.CorrelationId); - Console.WriteLine("Now = {0}", DateTime.Now); - } - - public IConsumeContext Context { get; set; } - } -} \ No newline at end of file diff --git a/samples/PublishSubscribe/PublishSubscribe.Consumer1/packages.config b/samples/PublishSubscribe/PublishSubscribe.Consumer1/packages.config deleted file mode 100644 index 6b8deb9c9..000000000 --- a/samples/PublishSubscribe/PublishSubscribe.Consumer1/packages.config +++ /dev/null @@ -1,3 +0,0 @@ - - - \ No newline at end of file diff --git a/samples/PublishSubscribe/PublishSubscribe.Consumer2/App.config b/samples/PublishSubscribe/PublishSubscribe.Consumer2/App.config deleted file mode 100644 index ed54d8d6a..000000000 --- a/samples/PublishSubscribe/PublishSubscribe.Consumer2/App.config +++ /dev/null @@ -1,7 +0,0 @@ - - - - - - - diff --git a/samples/PublishSubscribe/PublishSubscribe.Consumer2/Program.cs b/samples/PublishSubscribe/PublishSubscribe.Consumer2/Program.cs deleted file mode 100644 index 6133bdbcc..000000000 --- a/samples/PublishSubscribe/PublishSubscribe.Consumer2/Program.cs +++ /dev/null @@ -1,24 +0,0 @@ -using System; -using ServiceConnect; - -namespace PublishSubscribe.Consumer2 -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Consumer 2 ***********"); - var bus = Bus.Initialize(x => - { - x.ScanForMesssageHandlers = true; - x.SetQueueName("Consumer2"); - }); - - bus.StartConsuming(); - - Console.ReadLine(); - - bus.Dispose(); - } - } -} diff --git a/samples/PublishSubscribe/PublishSubscribe.Consumer2/Properties/AssemblyInfo.cs b/samples/PublishSubscribe/PublishSubscribe.Consumer2/Properties/AssemblyInfo.cs deleted file mode 100644 index fc0718bfb..000000000 --- a/samples/PublishSubscribe/PublishSubscribe.Consumer2/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("PublishSubscribe.Consumer2")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("PublishSubscribe.Consumer2")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("fd374b23-9540-4bcf-87d1-cb24c33d8c92")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/PublishSubscribe/PublishSubscribe.Consumer2/PublishSubscribe.Consumer2.csproj b/samples/PublishSubscribe/PublishSubscribe.Consumer2/PublishSubscribe.Consumer2.csproj deleted file mode 100644 index 77457941b..000000000 --- a/samples/PublishSubscribe/PublishSubscribe.Consumer2/PublishSubscribe.Consumer2.csproj +++ /dev/null @@ -1,107 +0,0 @@ - - - - - Debug - AnyCPU - {3C5FA0A0-42A8-4E25-8AB4-201B8752879B} - Exe - Properties - PublishSubscribe.Consumer2 - PublishSubscribe.Consumer2 - v4.5.1 - 512 - ..\ - true - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - - - {246bce79-4ba6-4be5-890e-e7014d59311e} - PublishSubscribe.Messages - - - - - - \ No newline at end of file diff --git a/samples/PublishSubscribe/PublishSubscribe.Consumer2/PublishSubscribeMessageHandler.cs b/samples/PublishSubscribe/PublishSubscribe.Consumer2/PublishSubscribeMessageHandler.cs deleted file mode 100644 index 79656856d..000000000 --- a/samples/PublishSubscribe/PublishSubscribe.Consumer2/PublishSubscribeMessageHandler.cs +++ /dev/null @@ -1,16 +0,0 @@ -using System; -using PublishSubscribe.Messages; -using ServiceConnect.Interfaces; - -namespace PublishSubscribe.Consumer2 -{ - public class PublishSubscribeMessageHandler : IMessageHandler - { - public void Execute(PublishSubscribeMessage message) - { - Console.WriteLine("Consumer 2 Received Message - {0}", message.CorrelationId); - } - - public IConsumeContext Context { get; set; } - } -} \ No newline at end of file diff --git a/samples/PublishSubscribe/PublishSubscribe.Consumer2/packages.config b/samples/PublishSubscribe/PublishSubscribe.Consumer2/packages.config deleted file mode 100644 index 6b8deb9c9..000000000 --- a/samples/PublishSubscribe/PublishSubscribe.Consumer2/packages.config +++ /dev/null @@ -1,3 +0,0 @@ - - - \ No newline at end of file diff --git a/samples/PublishSubscribe/PublishSubscribe.Messages/Properties/AssemblyInfo.cs b/samples/PublishSubscribe/PublishSubscribe.Messages/Properties/AssemblyInfo.cs deleted file mode 100644 index 6a8d7a0e1..000000000 --- a/samples/PublishSubscribe/PublishSubscribe.Messages/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("PublishSubscribe.Messages")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("PublishSubscribe.Messages")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("d67f9fad-73c4-48ff-9e12-63b62bc67c33")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/PublishSubscribe/PublishSubscribe.Messages/PublishSubscribe.Messages.csproj b/samples/PublishSubscribe/PublishSubscribe.Messages/PublishSubscribe.Messages.csproj deleted file mode 100644 index 531b4dbab..000000000 --- a/samples/PublishSubscribe/PublishSubscribe.Messages/PublishSubscribe.Messages.csproj +++ /dev/null @@ -1,64 +0,0 @@ - - - - - Debug - AnyCPU - {246BCE79-4BA6-4BE5-890E-E7014D59311E} - Library - Properties - PublishSubscribe.Messages - PublishSubscribe.Messages - v4.5.1 - 512 - ..\ - true - - - - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - - - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/samples/PublishSubscribe/PublishSubscribe.Messages/PublishSubscribeMessage.cs b/samples/PublishSubscribe/PublishSubscribe.Messages/PublishSubscribeMessage.cs deleted file mode 100644 index 6a813ab95..000000000 --- a/samples/PublishSubscribe/PublishSubscribe.Messages/PublishSubscribeMessage.cs +++ /dev/null @@ -1,10 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace PublishSubscribe.Messages -{ - public class PublishSubscribeMessage : Message - { - public PublishSubscribeMessage(Guid correlationId) : base(correlationId){} - } -} \ No newline at end of file diff --git a/samples/PublishSubscribe/PublishSubscribe.Messages/app.config b/samples/PublishSubscribe/PublishSubscribe.Messages/app.config deleted file mode 100644 index d4ff6d460..000000000 --- a/samples/PublishSubscribe/PublishSubscribe.Messages/app.config +++ /dev/null @@ -1,4 +0,0 @@ - - - - diff --git a/samples/PublishSubscribe/PublishSubscribe.Messages/packages.config b/samples/PublishSubscribe/PublishSubscribe.Messages/packages.config deleted file mode 100644 index 6b8deb9c9..000000000 --- a/samples/PublishSubscribe/PublishSubscribe.Messages/packages.config +++ /dev/null @@ -1,3 +0,0 @@ - - - \ No newline at end of file diff --git a/samples/PublishSubscribe/PublishSubscribe.Publisher/App.config b/samples/PublishSubscribe/PublishSubscribe.Publisher/App.config deleted file mode 100644 index ed54d8d6a..000000000 --- a/samples/PublishSubscribe/PublishSubscribe.Publisher/App.config +++ /dev/null @@ -1,7 +0,0 @@ - - - - - - - diff --git a/samples/PublishSubscribe/PublishSubscribe.Publisher/Program.cs b/samples/PublishSubscribe/PublishSubscribe.Publisher/Program.cs deleted file mode 100644 index 0cabe4ef9..000000000 --- a/samples/PublishSubscribe/PublishSubscribe.Publisher/Program.cs +++ /dev/null @@ -1,31 +0,0 @@ -using System; -using PublishSubscribe.Messages; -using ServiceConnect; - -namespace PublishSubscribe.Publisher -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Producer ***********"); - var bus = Bus.Initialize(config => - { - }); - - while (true) - { - Console.WriteLine("Press enter to publish message"); - Console.ReadLine(); - - for (int i = 0; i < 1000000; i++) - { - var id = Guid.NewGuid(); - bus.Publish(new PublishSubscribeMessage(id)); - } - - bus.Dispose(); - } - } - } -} diff --git a/samples/PublishSubscribe/PublishSubscribe.Publisher/Properties/AssemblyInfo.cs b/samples/PublishSubscribe/PublishSubscribe.Publisher/Properties/AssemblyInfo.cs deleted file mode 100644 index 1868f081c..000000000 --- a/samples/PublishSubscribe/PublishSubscribe.Publisher/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("PublishSubscribe.Publisher")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("PublishSubscribe.Publisher")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("a9e82bc3-d686-4222-9da8-c388e5386a56")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/PublishSubscribe/PublishSubscribe.Publisher/PublishSubscribe.Publisher.csproj b/samples/PublishSubscribe/PublishSubscribe.Publisher/PublishSubscribe.Publisher.csproj deleted file mode 100644 index 0b98e44f9..000000000 --- a/samples/PublishSubscribe/PublishSubscribe.Publisher/PublishSubscribe.Publisher.csproj +++ /dev/null @@ -1,106 +0,0 @@ - - - - - Debug - AnyCPU - {4B9A77A5-827F-462D-B461-B7F58F7478F6} - Exe - Properties - PublishSubscribe.Publisher - PublishSubscribe.Publisher - v4.5.1 - 512 - ..\ - true - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - - {246bce79-4ba6-4be5-890e-e7014d59311e} - PublishSubscribe.Messages - - - - - - \ No newline at end of file diff --git a/samples/PublishSubscribe/PublishSubscribe.Publisher/packages.config b/samples/PublishSubscribe/PublishSubscribe.Publisher/packages.config deleted file mode 100644 index 6b8deb9c9..000000000 --- a/samples/PublishSubscribe/PublishSubscribe.Publisher/packages.config +++ /dev/null @@ -1,3 +0,0 @@ - - - \ No newline at end of file diff --git a/samples/PublishSubscribe/PublishSubscribe.sln b/samples/PublishSubscribe/PublishSubscribe.sln deleted file mode 100644 index 457785dc7..000000000 --- a/samples/PublishSubscribe/PublishSubscribe.sln +++ /dev/null @@ -1,38 +0,0 @@ - -Microsoft Visual Studio Solution File, Format Version 12.00 -# Visual Studio 2012 -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PublishSubscribe.Publisher", "PublishSubscribe.Publisher\PublishSubscribe.Publisher.csproj", "{4B9A77A5-827F-462D-B461-B7F58F7478F6}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PublishSubscribe.Consumer1", "PublishSubscribe.Consumer1\PublishSubscribe.Consumer1.csproj", "{16E01826-0CC6-4FD1-8AC7-7C5DF6A1C25B}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PublishSubscribe.Consumer2", "PublishSubscribe.Consumer2\PublishSubscribe.Consumer2.csproj", "{3C5FA0A0-42A8-4E25-8AB4-201B8752879B}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PublishSubscribe.Messages", "PublishSubscribe.Messages\PublishSubscribe.Messages.csproj", "{246BCE79-4BA6-4BE5-890E-E7014D59311E}" -EndProject -Global - GlobalSection(SolutionConfigurationPlatforms) = preSolution - Debug|Any CPU = Debug|Any CPU - Release|Any CPU = Release|Any CPU - EndGlobalSection - GlobalSection(ProjectConfigurationPlatforms) = postSolution - {4B9A77A5-827F-462D-B461-B7F58F7478F6}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {4B9A77A5-827F-462D-B461-B7F58F7478F6}.Debug|Any CPU.Build.0 = Debug|Any CPU - {4B9A77A5-827F-462D-B461-B7F58F7478F6}.Release|Any CPU.ActiveCfg = Release|Any CPU - {4B9A77A5-827F-462D-B461-B7F58F7478F6}.Release|Any CPU.Build.0 = Release|Any CPU - {16E01826-0CC6-4FD1-8AC7-7C5DF6A1C25B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {16E01826-0CC6-4FD1-8AC7-7C5DF6A1C25B}.Debug|Any CPU.Build.0 = Debug|Any CPU - {16E01826-0CC6-4FD1-8AC7-7C5DF6A1C25B}.Release|Any CPU.ActiveCfg = Release|Any CPU - {16E01826-0CC6-4FD1-8AC7-7C5DF6A1C25B}.Release|Any CPU.Build.0 = Release|Any CPU - {3C5FA0A0-42A8-4E25-8AB4-201B8752879B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {3C5FA0A0-42A8-4E25-8AB4-201B8752879B}.Debug|Any CPU.Build.0 = Debug|Any CPU - {3C5FA0A0-42A8-4E25-8AB4-201B8752879B}.Release|Any CPU.ActiveCfg = Release|Any CPU - {3C5FA0A0-42A8-4E25-8AB4-201B8752879B}.Release|Any CPU.Build.0 = Release|Any CPU - {246BCE79-4BA6-4BE5-890E-E7014D59311E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {246BCE79-4BA6-4BE5-890E-E7014D59311E}.Debug|Any CPU.Build.0 = Debug|Any CPU - {246BCE79-4BA6-4BE5-890E-E7014D59311E}.Release|Any CPU.ActiveCfg = Release|Any CPU - {246BCE79-4BA6-4BE5-890E-E7014D59311E}.Release|Any CPU.Build.0 = Release|Any CPU - EndGlobalSection - GlobalSection(SolutionProperties) = preSolution - HideSolutionNode = FALSE - EndGlobalSection -EndGlobal diff --git a/samples/RecipientList/.nuget/NuGet.Config b/samples/RecipientList/.nuget/NuGet.Config deleted file mode 100644 index 67f8ea046..000000000 --- a/samples/RecipientList/.nuget/NuGet.Config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - \ No newline at end of file diff --git a/samples/RecipientList/.nuget/NuGet.exe b/samples/RecipientList/.nuget/NuGet.exe deleted file mode 100644 index 9cba6edbf..000000000 Binary files a/samples/RecipientList/.nuget/NuGet.exe and /dev/null differ diff --git a/samples/RecipientList/.nuget/NuGet.targets b/samples/RecipientList/.nuget/NuGet.targets deleted file mode 100644 index 2c3545bc7..000000000 --- a/samples/RecipientList/.nuget/NuGet.targets +++ /dev/null @@ -1,151 +0,0 @@ - - - - $(MSBuildProjectDirectory)\..\ - - - false - - - false - - - true - - - false - - - - - - - - - - - $([System.IO.Path]::Combine($(SolutionDir), ".nuget")) - - - - - $(SolutionDir).nuget - - - - packages.$(MSBuildProjectName.Replace(' ', '_')).config - - - - - - $(PackagesProjectConfig) - - - - - packages.config - - - - - - - $(NuGetToolsPath)\NuGet.exe - @(PackageSource) - - "$(NuGetExePath)" - mono --runtime=v4.0.30319 $(NuGetExePath) - - $(TargetDir.Trim('\\')) - - -RequireConsent - -NonInteractive - - "$(SolutionDir) " - "$(SolutionDir)" - - - $(NuGetCommand) install "$(PackagesConfig)" -source "$(PackageSources)" $(NonInteractiveSwitch) $(RequireConsentSwitch) -solutionDir $(PaddedSolutionDir) - $(NuGetCommand) pack "$(ProjectPath)" -Properties "Configuration=$(Configuration);Platform=$(Platform)" $(NonInteractiveSwitch) -OutputDirectory "$(PackageOutputDir)" -symbols - - - - RestorePackages; - $(BuildDependsOn); - - - - - $(BuildDependsOn); - BuildPackage; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - diff --git a/samples/RecipientList/RecipientList.Consumer1/App.config b/samples/RecipientList/RecipientList.Consumer1/App.config deleted file mode 100644 index ed54d8d6a..000000000 --- a/samples/RecipientList/RecipientList.Consumer1/App.config +++ /dev/null @@ -1,7 +0,0 @@ - - - - - - - diff --git a/samples/RecipientList/RecipientList.Consumer1/Program.cs b/samples/RecipientList/RecipientList.Consumer1/Program.cs deleted file mode 100644 index 80e4e2768..000000000 --- a/samples/RecipientList/RecipientList.Consumer1/Program.cs +++ /dev/null @@ -1,21 +0,0 @@ -using System; -using ServiceConnect; - -namespace RecipientList.Consumer1 -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Consumer 1 ***********"); - var bus = Bus.Initialize(x => - { - x.SetQueueName("Consumer1"); - }); - - bus.StartConsuming(); - - Console.ReadLine(); - } - } -} diff --git a/samples/RecipientList/RecipientList.Consumer1/Properties/AssemblyInfo.cs b/samples/RecipientList/RecipientList.Consumer1/Properties/AssemblyInfo.cs deleted file mode 100644 index b743e9ed1..000000000 --- a/samples/RecipientList/RecipientList.Consumer1/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("RecipientList.Consumer1")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("RecipientList.Consumer1")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("157aa3f8-8c13-46bc-8651-1508665e9656")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/RecipientList/RecipientList.Consumer1/RecipientList.Consumer1.csproj b/samples/RecipientList/RecipientList.Consumer1/RecipientList.Consumer1.csproj deleted file mode 100644 index fe67df4b1..000000000 --- a/samples/RecipientList/RecipientList.Consumer1/RecipientList.Consumer1.csproj +++ /dev/null @@ -1,104 +0,0 @@ - - - - - Debug - AnyCPU - {16E01826-0CC6-4FD1-8AC7-7C5DF6A1C25B} - Exe - Properties - RecipientList.Consumer1 - RecipientList.Consumer1 - v4.5.1 - 512 - ..\ - true - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - - - {246bce79-4ba6-4be5-890e-e7014d59311e} - PublishSubscribe.Messages - - - - - - \ No newline at end of file diff --git a/samples/RecipientList/RecipientList.Consumer1/RecipientListMessageHandler.cs b/samples/RecipientList/RecipientList.Consumer1/RecipientListMessageHandler.cs deleted file mode 100644 index 2e25f7a74..000000000 --- a/samples/RecipientList/RecipientList.Consumer1/RecipientListMessageHandler.cs +++ /dev/null @@ -1,30 +0,0 @@ -using System; -using System.Threading; -using ServiceConnect.Interfaces; -using RecipientList.Messages; - -namespace RecipientList.Consumer1 -{ - public class PublishSubscribeMessageHandler : IMessageHandler - { - public void Execute(RecipientListMessage message) - { - Console.WriteLine("Consumer 1 Received Message - {0}", message.CorrelationId); - - if (message.Delay) - { - Thread.Sleep(1000); - } - - if (message.SendReply) - { - Context.Reply(new RecipientListResponse(message.CorrelationId) - { - Endpoint = "Consumer1" - }); - } - } - - public IConsumeContext Context { get; set; } - } -} \ No newline at end of file diff --git a/samples/RecipientList/RecipientList.Consumer1/packages.config b/samples/RecipientList/RecipientList.Consumer1/packages.config deleted file mode 100644 index 6b8deb9c9..000000000 --- a/samples/RecipientList/RecipientList.Consumer1/packages.config +++ /dev/null @@ -1,3 +0,0 @@ - - - \ No newline at end of file diff --git a/samples/RecipientList/RecipientList.Consumer2/App.config b/samples/RecipientList/RecipientList.Consumer2/App.config deleted file mode 100644 index d23fe9d12..000000000 --- a/samples/RecipientList/RecipientList.Consumer2/App.config +++ /dev/null @@ -1,7 +0,0 @@ - - - - - - - diff --git a/samples/RecipientList/RecipientList.Consumer2/Program.cs b/samples/RecipientList/RecipientList.Consumer2/Program.cs deleted file mode 100644 index 096ca8082..000000000 --- a/samples/RecipientList/RecipientList.Consumer2/Program.cs +++ /dev/null @@ -1,21 +0,0 @@ -using System; -using ServiceConnect; - -namespace RecipientList.Consumer2 -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Consumer 2 ***********"); - var bus = Bus.Initialize(x => - { - x.SetQueueName("Consumer2"); - }); - - bus.StartConsuming(); - - Console.ReadLine(); - } - } -} diff --git a/samples/RecipientList/RecipientList.Consumer2/Properties/AssemblyInfo.cs b/samples/RecipientList/RecipientList.Consumer2/Properties/AssemblyInfo.cs deleted file mode 100644 index efa84506e..000000000 --- a/samples/RecipientList/RecipientList.Consumer2/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("RecipientList.Consumer2")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("RecipientList.Consumer2")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("fd374b23-9540-4bcf-87d1-cb24c33d8c92")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/RecipientList/RecipientList.Consumer2/RecipientList.Consumer2.csproj b/samples/RecipientList/RecipientList.Consumer2/RecipientList.Consumer2.csproj deleted file mode 100644 index 3b3433022..000000000 --- a/samples/RecipientList/RecipientList.Consumer2/RecipientList.Consumer2.csproj +++ /dev/null @@ -1,104 +0,0 @@ - - - - - Debug - AnyCPU - {3C5FA0A0-42A8-4E25-8AB4-201B8752879B} - Exe - Properties - RecipientList.Consumer2 - RecipientList.Consumer2 - v4.5.1 - 512 - ..\ - true - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - - - {246bce79-4ba6-4be5-890e-e7014d59311e} - PublishSubscribe.Messages - - - - - - \ No newline at end of file diff --git a/samples/RecipientList/RecipientList.Consumer2/RecipientListMessageHandler.cs b/samples/RecipientList/RecipientList.Consumer2/RecipientListMessageHandler.cs deleted file mode 100644 index 3b9a04462..000000000 --- a/samples/RecipientList/RecipientList.Consumer2/RecipientListMessageHandler.cs +++ /dev/null @@ -1,24 +0,0 @@ -using System; -using ServiceConnect.Interfaces; -using RecipientList.Messages; - -namespace RecipientList.Consumer2 -{ - public class PublishSubscribeMessageHandler : IMessageHandler - { - public void Execute(RecipientListMessage message) - { - Console.WriteLine("Consumer 2 Received Message - {0}", message.CorrelationId); - - if (message.SendReply) - { - Context.Reply(new RecipientListResponse(message.CorrelationId) - { - Endpoint = "Consumer2" - }); - } - } - - public IConsumeContext Context { get; set; } - } -} \ No newline at end of file diff --git a/samples/RecipientList/RecipientList.Consumer2/packages.config b/samples/RecipientList/RecipientList.Consumer2/packages.config deleted file mode 100644 index 6b8deb9c9..000000000 --- a/samples/RecipientList/RecipientList.Consumer2/packages.config +++ /dev/null @@ -1,3 +0,0 @@ - - - \ No newline at end of file diff --git a/samples/RecipientList/RecipientList.Messages/Properties/AssemblyInfo.cs b/samples/RecipientList/RecipientList.Messages/Properties/AssemblyInfo.cs deleted file mode 100644 index 6a8d7a0e1..000000000 --- a/samples/RecipientList/RecipientList.Messages/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("PublishSubscribe.Messages")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("PublishSubscribe.Messages")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("d67f9fad-73c4-48ff-9e12-63b62bc67c33")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/RecipientList/RecipientList.Messages/RecipientList.Messages.csproj b/samples/RecipientList/RecipientList.Messages/RecipientList.Messages.csproj deleted file mode 100644 index beb7caf6f..000000000 --- a/samples/RecipientList/RecipientList.Messages/RecipientList.Messages.csproj +++ /dev/null @@ -1,65 +0,0 @@ - - - - - Debug - AnyCPU - {246BCE79-4BA6-4BE5-890E-E7014D59311E} - Library - Properties - RecipientList.Messages - RecipientList.Messages - v4.5.1 - 512 - ..\ - true - - - - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - - - - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/samples/RecipientList/RecipientList.Messages/RecipientListMessage.cs b/samples/RecipientList/RecipientList.Messages/RecipientListMessage.cs deleted file mode 100644 index 10febf616..000000000 --- a/samples/RecipientList/RecipientList.Messages/RecipientListMessage.cs +++ /dev/null @@ -1,12 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace RecipientList.Messages -{ - public class RecipientListMessage : Message - { - public RecipientListMessage(Guid correlationId) : base(correlationId) { } - public bool SendReply { get; set; } - public bool Delay { get; set; } - } -} \ No newline at end of file diff --git a/samples/RecipientList/RecipientList.Messages/RecipientListResponse.cs b/samples/RecipientList/RecipientList.Messages/RecipientListResponse.cs deleted file mode 100644 index 1cb7404af..000000000 --- a/samples/RecipientList/RecipientList.Messages/RecipientListResponse.cs +++ /dev/null @@ -1,12 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace RecipientList.Messages -{ - public class RecipientListResponse : Message - { - public RecipientListResponse(Guid correlationId) : base(correlationId) { } - - public string Endpoint { get; set; } - } -} \ No newline at end of file diff --git a/samples/RecipientList/RecipientList.Messages/app.config b/samples/RecipientList/RecipientList.Messages/app.config deleted file mode 100644 index d4ff6d460..000000000 --- a/samples/RecipientList/RecipientList.Messages/app.config +++ /dev/null @@ -1,4 +0,0 @@ - - - - diff --git a/samples/RecipientList/RecipientList.Messages/packages.config b/samples/RecipientList/RecipientList.Messages/packages.config deleted file mode 100644 index 6b8deb9c9..000000000 --- a/samples/RecipientList/RecipientList.Messages/packages.config +++ /dev/null @@ -1,3 +0,0 @@ - - - \ No newline at end of file diff --git a/samples/RecipientList/RecipientList.Publisher/App.config b/samples/RecipientList/RecipientList.Publisher/App.config deleted file mode 100644 index ed54d8d6a..000000000 --- a/samples/RecipientList/RecipientList.Publisher/App.config +++ /dev/null @@ -1,7 +0,0 @@ - - - - - - - diff --git a/samples/RecipientList/RecipientList.Publisher/Program.cs b/samples/RecipientList/RecipientList.Publisher/Program.cs deleted file mode 100644 index 7b8c605ae..000000000 --- a/samples/RecipientList/RecipientList.Publisher/Program.cs +++ /dev/null @@ -1,137 +0,0 @@ -using System; -using System.Collections.Generic; -using ServiceConnect; -using ServiceConnect.Interfaces; -using RecipientList.Messages; - -namespace RecipientList.Publisher -{ - class Program - { - private static IBus _bus; - - static void Main(string[] args) - { - Console.WriteLine("*********** Producer ***********"); - _bus = Bus.Initialize(config => - { - }); - _bus.StartConsuming(); - - while (true) - { - Console.WriteLine("Choose a option"); - Console.WriteLine("1 Recipient List"); - Console.WriteLine("2 Recipient List Reply Sync"); - Console.WriteLine("3 Recipient List Reply Async"); - Console.WriteLine("4 Recipient List Timeout (Should only receive a reply from Consumer 2)"); - - var result = Console.ReadLine(); - switch (result) - { - case "1": - TestRecipientList(); - break; - case "2": - TestRecipientListReplySynch(); - break; - case "3": - TestRecipientListReplyAsynch(); - break; - case "4": - TestRecipientListReplySynchTimeout(); - break; - } - } - } - - private static void TestRecipientListReplySynchTimeout() - { - var id = Guid.NewGuid(); - var responses = _bus.SendRequest( - new List - { - "Consumer1", - "Consumer2" - }, - new RecipientListMessage(id) - { - SendReply = true, - Delay = true - }, timeout: 500 - ); - - foreach (RecipientListResponse response in responses) - { - Console.WriteLine("Received response from - {0}", response.Endpoint); - } - - Console.WriteLine(""); - } - - private static void TestRecipientListReplyAsynch() - { - var id = Guid.NewGuid(); - _bus.SendRequest( - new List - { - "Consumer1", - "Consumer2" - }, - new RecipientListMessage(id) - { - SendReply = true - }, - r => - { - foreach (RecipientListResponse recipientListResponse in r) - { - Console.WriteLine("Received response from - {0}", recipientListResponse.Endpoint); - } - Console.WriteLine(""); - } - ); - - Console.WriteLine(""); - } - - private static void TestRecipientListReplySynch() - { - var id = Guid.NewGuid(); - var responses = _bus.SendRequest( - new List - { - "Consumer1", - "Consumer2" - }, - new RecipientListMessage(id) - { - SendReply = true - } - ); - - foreach (RecipientListResponse response in responses) - { - Console.WriteLine("Received response from - {0}", response.Endpoint); - } - - Console.WriteLine(""); - } - - private static void TestRecipientList() - { - var id = Guid.NewGuid(); - _bus.Send( - new List - { - "Consumer1", - "Consumer2" - }, - new RecipientListMessage(id) - ); - - Console.WriteLine("Sent message to consumer 1 and 2 - {0}", id); - Console.WriteLine(""); - } - } -} diff --git a/samples/RecipientList/RecipientList.Publisher/Properties/AssemblyInfo.cs b/samples/RecipientList/RecipientList.Publisher/Properties/AssemblyInfo.cs deleted file mode 100644 index f7c36e62b..000000000 --- a/samples/RecipientList/RecipientList.Publisher/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("RecipientList.Publisher")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("RecipientList.Publisher")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("a9e82bc3-d686-4222-9da8-c388e5386a56")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/RecipientList/RecipientList.Publisher/RecipientList.Publisher.csproj b/samples/RecipientList/RecipientList.Publisher/RecipientList.Publisher.csproj deleted file mode 100644 index 3d799bff1..000000000 --- a/samples/RecipientList/RecipientList.Publisher/RecipientList.Publisher.csproj +++ /dev/null @@ -1,103 +0,0 @@ - - - - - Debug - AnyCPU - {4B9A77A5-827F-462D-B461-B7F58F7478F6} - Exe - Properties - RecipientList.Publisher - RecipientList.Publisher - v4.5.1 - 512 - ..\ - true - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - - {246bce79-4ba6-4be5-890e-e7014d59311e} - PublishSubscribe.Messages - - - - - - \ No newline at end of file diff --git a/samples/RecipientList/RecipientList.Publisher/packages.config b/samples/RecipientList/RecipientList.Publisher/packages.config deleted file mode 100644 index 6b8deb9c9..000000000 --- a/samples/RecipientList/RecipientList.Publisher/packages.config +++ /dev/null @@ -1,3 +0,0 @@ - - - \ No newline at end of file diff --git a/samples/RecipientList/RecipientList.sln b/samples/RecipientList/RecipientList.sln deleted file mode 100644 index 83059959b..000000000 --- a/samples/RecipientList/RecipientList.sln +++ /dev/null @@ -1,38 +0,0 @@ - -Microsoft Visual Studio Solution File, Format Version 12.00 -# Visual Studio 2012 -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "RecipientList.Publisher", "RecipientList.Publisher\RecipientList.Publisher.csproj", "{4B9A77A5-827F-462D-B461-B7F58F7478F6}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "RecipientList.Consumer1", "RecipientList.Consumer1\RecipientList.Consumer1.csproj", "{16E01826-0CC6-4FD1-8AC7-7C5DF6A1C25B}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "RecipientList.Consumer2", "RecipientList.Consumer2\RecipientList.Consumer2.csproj", "{3C5FA0A0-42A8-4E25-8AB4-201B8752879B}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "RecipientList.Messages", "RecipientList.Messages\RecipientList.Messages.csproj", "{246BCE79-4BA6-4BE5-890E-E7014D59311E}" -EndProject -Global - GlobalSection(SolutionConfigurationPlatforms) = preSolution - Debug|Any CPU = Debug|Any CPU - Release|Any CPU = Release|Any CPU - EndGlobalSection - GlobalSection(ProjectConfigurationPlatforms) = postSolution - {4B9A77A5-827F-462D-B461-B7F58F7478F6}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {4B9A77A5-827F-462D-B461-B7F58F7478F6}.Debug|Any CPU.Build.0 = Debug|Any CPU - {4B9A77A5-827F-462D-B461-B7F58F7478F6}.Release|Any CPU.ActiveCfg = Release|Any CPU - {4B9A77A5-827F-462D-B461-B7F58F7478F6}.Release|Any CPU.Build.0 = Release|Any CPU - {16E01826-0CC6-4FD1-8AC7-7C5DF6A1C25B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {16E01826-0CC6-4FD1-8AC7-7C5DF6A1C25B}.Debug|Any CPU.Build.0 = Debug|Any CPU - {16E01826-0CC6-4FD1-8AC7-7C5DF6A1C25B}.Release|Any CPU.ActiveCfg = Release|Any CPU - {16E01826-0CC6-4FD1-8AC7-7C5DF6A1C25B}.Release|Any CPU.Build.0 = Release|Any CPU - {3C5FA0A0-42A8-4E25-8AB4-201B8752879B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {3C5FA0A0-42A8-4E25-8AB4-201B8752879B}.Debug|Any CPU.Build.0 = Debug|Any CPU - {3C5FA0A0-42A8-4E25-8AB4-201B8752879B}.Release|Any CPU.ActiveCfg = Release|Any CPU - {3C5FA0A0-42A8-4E25-8AB4-201B8752879B}.Release|Any CPU.Build.0 = Release|Any CPU - {246BCE79-4BA6-4BE5-890E-E7014D59311E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {246BCE79-4BA6-4BE5-890E-E7014D59311E}.Debug|Any CPU.Build.0 = Debug|Any CPU - {246BCE79-4BA6-4BE5-890E-E7014D59311E}.Release|Any CPU.ActiveCfg = Release|Any CPU - {246BCE79-4BA6-4BE5-890E-E7014D59311E}.Release|Any CPU.Build.0 = Release|Any CPU - EndGlobalSection - GlobalSection(SolutionProperties) = preSolution - HideSolutionNode = FALSE - EndGlobalSection -EndGlobal diff --git a/samples/RequestResponse/.nuget/NuGet.Config b/samples/RequestResponse/.nuget/NuGet.Config deleted file mode 100644 index 67f8ea046..000000000 --- a/samples/RequestResponse/.nuget/NuGet.Config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - \ No newline at end of file diff --git a/samples/RequestResponse/.nuget/NuGet.exe b/samples/RequestResponse/.nuget/NuGet.exe deleted file mode 100644 index c41a0d0de..000000000 Binary files a/samples/RequestResponse/.nuget/NuGet.exe and /dev/null differ diff --git a/samples/RequestResponse/.nuget/NuGet.targets b/samples/RequestResponse/.nuget/NuGet.targets deleted file mode 100644 index 3f8c37b22..000000000 --- a/samples/RequestResponse/.nuget/NuGet.targets +++ /dev/null @@ -1,144 +0,0 @@ - - - - $(MSBuildProjectDirectory)\..\ - - - false - - - false - - - true - - - false - - - - - - - - - - - $([System.IO.Path]::Combine($(SolutionDir), ".nuget")) - - - - - $(SolutionDir).nuget - - - - $(MSBuildProjectDirectory)\packages.$(MSBuildProjectName.Replace(' ', '_')).config - $(MSBuildProjectDirectory)\packages.$(MSBuildProjectName).config - - - - $(MSBuildProjectDirectory)\packages.config - $(PackagesProjectConfig) - - - - - $(NuGetToolsPath)\NuGet.exe - @(PackageSource) - - "$(NuGetExePath)" - mono --runtime=v4.0.30319 "$(NuGetExePath)" - - $(TargetDir.Trim('\\')) - - -RequireConsent - -NonInteractive - - "$(SolutionDir) " - "$(SolutionDir)" - - - $(NuGetCommand) install "$(PackagesConfig)" -source "$(PackageSources)" $(NonInteractiveSwitch) $(RequireConsentSwitch) -solutionDir $(PaddedSolutionDir) - $(NuGetCommand) pack "$(ProjectPath)" -Properties "Configuration=$(Configuration);Platform=$(Platform)" $(NonInteractiveSwitch) -OutputDirectory "$(PackageOutputDir)" -symbols - - - - RestorePackages; - $(BuildDependsOn); - - - - - $(BuildDependsOn); - BuildPackage; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - diff --git a/samples/RequestResponse/RequestRepsonse.Messages/Properties/AssemblyInfo.cs b/samples/RequestResponse/RequestRepsonse.Messages/Properties/AssemblyInfo.cs deleted file mode 100644 index d85ca16a6..000000000 --- a/samples/RequestResponse/RequestRepsonse.Messages/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("RequestRepsonse.Messages")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("RequestRepsonse.Messages")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("3ada25e6-1188-4268-9ee6-d886dcad8712")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/RequestResponse/RequestRepsonse.Messages/RequestMessage.cs b/samples/RequestResponse/RequestRepsonse.Messages/RequestMessage.cs deleted file mode 100644 index f2388c9cb..000000000 --- a/samples/RequestResponse/RequestRepsonse.Messages/RequestMessage.cs +++ /dev/null @@ -1,12 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace RequestRepsonse.Messages -{ - public class RequestMessage : Message - { - public RequestMessage(Guid correlationId) : base(correlationId) - { - } - } -} diff --git a/samples/RequestResponse/RequestRepsonse.Messages/RequestRepsonse.Messages.csproj b/samples/RequestResponse/RequestRepsonse.Messages/RequestRepsonse.Messages.csproj deleted file mode 100644 index c53bdc5af..000000000 --- a/samples/RequestResponse/RequestRepsonse.Messages/RequestRepsonse.Messages.csproj +++ /dev/null @@ -1,69 +0,0 @@ - - - - - Debug - AnyCPU - {F4DD73B8-0CFF-4680-BFF0-7D156BDDC15A} - Library - Properties - RequestRepsonse.Messages - RequestRepsonse.Messages - v4.5.1 - 512 - ..\ - true - - - - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\Newtonsoft.Json.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - - - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/samples/RequestResponse/RequestRepsonse.Messages/ResponseMessage.cs b/samples/RequestResponse/RequestRepsonse.Messages/ResponseMessage.cs deleted file mode 100644 index 7c9a1bc34..000000000 --- a/samples/RequestResponse/RequestRepsonse.Messages/ResponseMessage.cs +++ /dev/null @@ -1,12 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace RequestRepsonse.Messages -{ - public class ResponseMessage : Message - { - public ResponseMessage(Guid correlationId) : base(correlationId) - { - } - } -} diff --git a/samples/RequestResponse/RequestRepsonse.Messages/packages.config b/samples/RequestResponse/RequestRepsonse.Messages/packages.config deleted file mode 100644 index d616013c8..000000000 --- a/samples/RequestResponse/RequestRepsonse.Messages/packages.config +++ /dev/null @@ -1,4 +0,0 @@ - - - - \ No newline at end of file diff --git a/samples/RequestResponse/RequestResponse.Requestor/App.config b/samples/RequestResponse/RequestResponse.Requestor/App.config deleted file mode 100644 index 673649f0a..000000000 --- a/samples/RequestResponse/RequestResponse.Requestor/App.config +++ /dev/null @@ -1,18 +0,0 @@ - - - - - - - - - - - - - - - - - - diff --git a/samples/RequestResponse/RequestResponse.Requestor/Program.cs b/samples/RequestResponse/RequestResponse.Requestor/Program.cs deleted file mode 100644 index cec5d0dfe..000000000 --- a/samples/RequestResponse/RequestResponse.Requestor/Program.cs +++ /dev/null @@ -1,55 +0,0 @@ -using System; -using ServiceConnect; -using RequestRepsonse.Messages; -using ServiceConnect.Interfaces; - -namespace RequestResponse.Requestor -{ - public class Filter : IFilter - { - public bool Process(Envelope envelope) - { - if (envelope.Headers.ContainsKey("Authenticated") && bool.Parse(System.Text.Encoding.ASCII.GetString((byte[])envelope.Headers["Authenticated"]))) - { - Console.WriteLine("authenticated"); - return true; - } - Console.WriteLine("not authenticated"); - return false; - } - - public IBus Bus { get; set; } - } - - class Program - { - private static void Main(string[] args) - { - Console.WriteLine("*********** Requestor ***********"); - - var bus = Bus.Initialize(config => - { - config.SetHost("localhost"); - config.SetQueueName("Requestor"); - config.BeforeConsumingFilters.Add(typeof(Filter)); - }); - - while (true) - { - Console.WriteLine("Press enter to send messages"); - Console.ReadLine(); - - //var id = Guid.NewGuid(); - //Console.WriteLine("Sending synchronous message - {0}", id); - //var result = bus.SendRequest("Responder", new RequestMessage(id), timeout: 300000); - //Console.WriteLine("Sent synchronous message reply - {0}", result.CorrelationId); - //Console.WriteLine(); - - var id = Guid.NewGuid(); - Console.WriteLine("Sending async message - {0}", id); - bus.SendRequest("Responder", new RequestMessage(id), r => Console.WriteLine("Sent async message reply - {0}", r.CorrelationId)); - Console.WriteLine(); - } - } - } -} diff --git a/samples/RequestResponse/RequestResponse.Requestor/Properties/AssemblyInfo.cs b/samples/RequestResponse/RequestResponse.Requestor/Properties/AssemblyInfo.cs deleted file mode 100644 index 4fd2451aa..000000000 --- a/samples/RequestResponse/RequestResponse.Requestor/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("RequestResponse.Requestor")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("RequestResponse.Requestor")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("a7426fe8-cfc6-452a-9130-fc15ccce7b5b")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/RequestResponse/RequestResponse.Requestor/RequestResponse.Requestor.csproj b/samples/RequestResponse/RequestResponse.Requestor/RequestResponse.Requestor.csproj deleted file mode 100644 index a27781b12..000000000 --- a/samples/RequestResponse/RequestResponse.Requestor/RequestResponse.Requestor.csproj +++ /dev/null @@ -1,134 +0,0 @@ - - - - - Debug - AnyCPU - {DA87DD26-45B6-4CDC-A780-ACD32BEB56DB} - Exe - Properties - RequestResponse.Requestor - RequestResponse.Requestor - v4.5.1 - 512 - ..\ - true - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - ..\packages\ServiceConnect.4.0.0-pre\lib\net451\System.Data.Common.dll - True - - - ..\packages\ServiceConnect.4.0.0-pre\lib\net451\System.Data.SqlClient.dll - True - - - ..\packages\ServiceConnect.4.0.0-pre\lib\net451\System.Reactive.Core.dll - True - - - ..\packages\ServiceConnect.4.0.0-pre\lib\net451\System.Reactive.Interfaces.dll - True - - - ..\packages\ServiceConnect.4.0.0-pre\lib\net451\System.Reactive.Linq.dll - True - - - - - - - - - - - - - - - - - - {f4dd73b8-0cff-4680-bff0-7d156bddc15a} - RequestRepsonse.Messages - - - - - - \ No newline at end of file diff --git a/samples/RequestResponse/RequestResponse.Requestor/packages.config b/samples/RequestResponse/RequestResponse.Requestor/packages.config deleted file mode 100644 index 21cef262d..000000000 --- a/samples/RequestResponse/RequestResponse.Requestor/packages.config +++ /dev/null @@ -1,5 +0,0 @@ - - - - - \ No newline at end of file diff --git a/samples/RequestResponse/RequestResponse.Responder/App.config b/samples/RequestResponse/RequestResponse.Responder/App.config deleted file mode 100644 index d0feca6f7..000000000 --- a/samples/RequestResponse/RequestResponse.Responder/App.config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - diff --git a/samples/RequestResponse/RequestResponse.Responder/Program.cs b/samples/RequestResponse/RequestResponse.Responder/Program.cs deleted file mode 100644 index d25252c20..000000000 --- a/samples/RequestResponse/RequestResponse.Responder/Program.cs +++ /dev/null @@ -1,23 +0,0 @@ -using System; -using System.Collections.Generic; -using ServiceConnect; -using RequestRepsonse.Messages; - -namespace RequestResponse.Responder -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Responder ***********"); - - Bus.Initialize(x => - { - x.SetHost("localhost"); - x.SetQueueName("Responder"); - }); - - Console.ReadLine(); - } - } -} diff --git a/samples/RequestResponse/RequestResponse.Responder/Properties/AssemblyInfo.cs b/samples/RequestResponse/RequestResponse.Responder/Properties/AssemblyInfo.cs deleted file mode 100644 index b27b4fb6d..000000000 --- a/samples/RequestResponse/RequestResponse.Responder/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("RequestResponse.Responder")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("RequestResponse.Responder")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("20db7505-8804-4b2c-92b6-18f69e36c761")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/RequestResponse/RequestResponse.Responder/RequestMessageHandler.cs b/samples/RequestResponse/RequestResponse.Responder/RequestMessageHandler.cs deleted file mode 100644 index 2565db767..000000000 --- a/samples/RequestResponse/RequestResponse.Responder/RequestMessageHandler.cs +++ /dev/null @@ -1,21 +0,0 @@ -using System; -using System.Collections.Generic; -using ServiceConnect.Interfaces; -using RequestRepsonse.Messages; - -namespace RequestResponse.Responder -{ - public class RequestMessageHandler : IMessageHandler - { - public IConsumeContext Context { get; set; } - - public void Execute(RequestMessage message) - { - Console.WriteLine("Received message, sending reply - {0}", message.CorrelationId); - Context.Reply(new ResponseMessage(message.CorrelationId), new Dictionary - { - {"Authenticated", (DateTime.Now.Ticks % 2 == 0).ToString()} - }); - } - } -} diff --git a/samples/RequestResponse/RequestResponse.Responder/RequestResponse.Responder.csproj b/samples/RequestResponse/RequestResponse.Responder/RequestResponse.Responder.csproj deleted file mode 100644 index 7b69ead48..000000000 --- a/samples/RequestResponse/RequestResponse.Responder/RequestResponse.Responder.csproj +++ /dev/null @@ -1,134 +0,0 @@ - - - - - Debug - AnyCPU - {DC499747-D156-4DA9-A44A-FF0374F33F87} - Exe - Properties - RequestResponse.Responder - RequestResponse.Responder - v4.5.1 - 512 - ..\ - true - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - ..\packages\ServiceConnect.4.0.0-pre\lib\net451\System.Data.Common.dll - True - - - ..\packages\ServiceConnect.4.0.0-pre\lib\net451\System.Data.SqlClient.dll - True - - - ..\packages\ServiceConnect.4.0.0-pre\lib\net451\System.Reactive.Core.dll - True - - - ..\packages\ServiceConnect.4.0.0-pre\lib\net451\System.Reactive.Interfaces.dll - True - - - ..\packages\ServiceConnect.4.0.0-pre\lib\net451\System.Reactive.Linq.dll - True - - - - - - - - - - - - - - - - - - - {f4dd73b8-0cff-4680-bff0-7d156bddc15a} - RequestRepsonse.Messages - - - - - - \ No newline at end of file diff --git a/samples/RequestResponse/RequestResponse.Responder/packages.config b/samples/RequestResponse/RequestResponse.Responder/packages.config deleted file mode 100644 index 21cef262d..000000000 --- a/samples/RequestResponse/RequestResponse.Responder/packages.config +++ /dev/null @@ -1,5 +0,0 @@ - - - - - \ No newline at end of file diff --git a/samples/RequestResponse/RequestResponse.sln b/samples/RequestResponse/RequestResponse.sln deleted file mode 100644 index 4aef7b230..000000000 --- a/samples/RequestResponse/RequestResponse.sln +++ /dev/null @@ -1,52 +0,0 @@ - -Microsoft Visual Studio Solution File, Format Version 12.00 -# Visual Studio 2013 -VisualStudioVersion = 12.0.30723.0 -MinimumVisualStudioVersion = 10.0.40219.1 -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "RequestResponse.Requestor", "RequestResponse.Requestor\RequestResponse.Requestor.csproj", "{DA87DD26-45B6-4CDC-A780-ACD32BEB56DB}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "RequestResponse.Responder", "RequestResponse.Responder\RequestResponse.Responder.csproj", "{DC499747-D156-4DA9-A44A-FF0374F33F87}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "RequestRepsonse.Messages", "RequestRepsonse.Messages\RequestRepsonse.Messages.csproj", "{F4DD73B8-0CFF-4680-BFF0-7D156BDDC15A}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Retries.Producer", "..\Retries\Retries.Producer\Retries.Producer.csproj", "{2293DB62-D548-49ED-B378-526ED8A8DC40}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Retries.Messages", "..\Retries\Retries.Messages\Retries.Messages.csproj", "{C2E46573-3097-4578-BB86-EB9B7A6396BA}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Retries.Consumer", "..\Retries\Retries.Consumer\Retries.Consumer.csproj", "{C945A9D7-9DA1-4DF5-9D11-718C450AB8E0}" -EndProject -Global - GlobalSection(SolutionConfigurationPlatforms) = preSolution - Debug|Any CPU = Debug|Any CPU - Release|Any CPU = Release|Any CPU - EndGlobalSection - GlobalSection(ProjectConfigurationPlatforms) = postSolution - {DA87DD26-45B6-4CDC-A780-ACD32BEB56DB}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {DA87DD26-45B6-4CDC-A780-ACD32BEB56DB}.Debug|Any CPU.Build.0 = Debug|Any CPU - {DA87DD26-45B6-4CDC-A780-ACD32BEB56DB}.Release|Any CPU.ActiveCfg = Release|Any CPU - {DA87DD26-45B6-4CDC-A780-ACD32BEB56DB}.Release|Any CPU.Build.0 = Release|Any CPU - {DC499747-D156-4DA9-A44A-FF0374F33F87}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {DC499747-D156-4DA9-A44A-FF0374F33F87}.Debug|Any CPU.Build.0 = Debug|Any CPU - {DC499747-D156-4DA9-A44A-FF0374F33F87}.Release|Any CPU.ActiveCfg = Release|Any CPU - {DC499747-D156-4DA9-A44A-FF0374F33F87}.Release|Any CPU.Build.0 = Release|Any CPU - {F4DD73B8-0CFF-4680-BFF0-7D156BDDC15A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {F4DD73B8-0CFF-4680-BFF0-7D156BDDC15A}.Debug|Any CPU.Build.0 = Debug|Any CPU - {F4DD73B8-0CFF-4680-BFF0-7D156BDDC15A}.Release|Any CPU.ActiveCfg = Release|Any CPU - {F4DD73B8-0CFF-4680-BFF0-7D156BDDC15A}.Release|Any CPU.Build.0 = Release|Any CPU - {2293DB62-D548-49ED-B378-526ED8A8DC40}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {2293DB62-D548-49ED-B378-526ED8A8DC40}.Debug|Any CPU.Build.0 = Debug|Any CPU - {2293DB62-D548-49ED-B378-526ED8A8DC40}.Release|Any CPU.ActiveCfg = Release|Any CPU - {2293DB62-D548-49ED-B378-526ED8A8DC40}.Release|Any CPU.Build.0 = Release|Any CPU - {C2E46573-3097-4578-BB86-EB9B7A6396BA}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {C2E46573-3097-4578-BB86-EB9B7A6396BA}.Debug|Any CPU.Build.0 = Debug|Any CPU - {C2E46573-3097-4578-BB86-EB9B7A6396BA}.Release|Any CPU.ActiveCfg = Release|Any CPU - {C2E46573-3097-4578-BB86-EB9B7A6396BA}.Release|Any CPU.Build.0 = Release|Any CPU - {C945A9D7-9DA1-4DF5-9D11-718C450AB8E0}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {C945A9D7-9DA1-4DF5-9D11-718C450AB8E0}.Debug|Any CPU.Build.0 = Debug|Any CPU - {C945A9D7-9DA1-4DF5-9D11-718C450AB8E0}.Release|Any CPU.ActiveCfg = Release|Any CPU - {C945A9D7-9DA1-4DF5-9D11-718C450AB8E0}.Release|Any CPU.Build.0 = Release|Any CPU - EndGlobalSection - GlobalSection(SolutionProperties) = preSolution - HideSolutionNode = FALSE - EndGlobalSection -EndGlobal diff --git a/samples/RequestResponse/RequestResponse/App.config b/samples/RequestResponse/RequestResponse/App.config deleted file mode 100644 index 8e1564635..000000000 --- a/samples/RequestResponse/RequestResponse/App.config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - \ No newline at end of file diff --git a/samples/RequestResponse/RequestResponse/Program.cs b/samples/RequestResponse/RequestResponse/Program.cs deleted file mode 100644 index 668ba1830..000000000 --- a/samples/RequestResponse/RequestResponse/Program.cs +++ /dev/null @@ -1,15 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using System.Text; -using System.Threading.Tasks; - -namespace RequestResponse -{ - class Program - { - static void Main(string[] args) - { - } - } -} diff --git a/samples/RequestResponse/RequestResponse/Properties/AssemblyInfo.cs b/samples/RequestResponse/RequestResponse/Properties/AssemblyInfo.cs deleted file mode 100644 index a6189bd8d..000000000 --- a/samples/RequestResponse/RequestResponse/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("RequestResponse")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("RequestResponse")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("13775e6c-ab8c-4ef6-98c8-7bec22fa9e60")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/RequestResponse/RequestResponse/RequestResponse.csproj b/samples/RequestResponse/RequestResponse/RequestResponse.csproj deleted file mode 100644 index 624453347..000000000 --- a/samples/RequestResponse/RequestResponse/RequestResponse.csproj +++ /dev/null @@ -1,58 +0,0 @@ - - - - - Debug - AnyCPU - {8113773A-6A03-4D1D-A033-835830C64CC8} - Exe - Properties - RequestResponse - RequestResponse - v4.5 - 512 - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/samples/Retries/Retries.Consumer/App.config b/samples/Retries/Retries.Consumer/App.config deleted file mode 100644 index d23fe9d12..000000000 --- a/samples/Retries/Retries.Consumer/App.config +++ /dev/null @@ -1,7 +0,0 @@ - - - - - - - diff --git a/samples/Retries/Retries.Consumer/Program.cs b/samples/Retries/Retries.Consumer/Program.cs deleted file mode 100644 index 85a0511d5..000000000 --- a/samples/Retries/Retries.Consumer/Program.cs +++ /dev/null @@ -1,20 +0,0 @@ -using System; -using ServiceConnect; - -namespace Retries.Consumer -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Consumer ***********"); - Bus.Initialize(x => - { - x.SetHost("localhost"); - x.SetQueueName("RetryTest"); - }); - - Console.ReadLine(); - } - } -} diff --git a/samples/Retries/Retries.Consumer/Properties/AssemblyInfo.cs b/samples/Retries/Retries.Consumer/Properties/AssemblyInfo.cs deleted file mode 100644 index fed62e5a7..000000000 --- a/samples/Retries/Retries.Consumer/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("Retries.Consumer")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("Retries.Consumer")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("1fefaeae-8326-46d1-89d0-d71914e153e3")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/Retries/Retries.Consumer/Retries.Consumer.csproj b/samples/Retries/Retries.Consumer/Retries.Consumer.csproj deleted file mode 100644 index 0e09b4bdb..000000000 --- a/samples/Retries/Retries.Consumer/Retries.Consumer.csproj +++ /dev/null @@ -1,101 +0,0 @@ - - - - - Debug - AnyCPU - {C945A9D7-9DA1-4DF5-9D11-718C450AB8E0} - Exe - Properties - Retries.Consumer - Retries.Consumer - v4.5.1 - 512 - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - - - {c2e46573-3097-4578-bb86-eb9b7a6396ba} - Retries.Messages - - - - - \ No newline at end of file diff --git a/samples/Retries/Retries.Consumer/RetryMessageHandler.cs b/samples/Retries/Retries.Consumer/RetryMessageHandler.cs deleted file mode 100644 index a036f4daa..000000000 --- a/samples/Retries/Retries.Consumer/RetryMessageHandler.cs +++ /dev/null @@ -1,18 +0,0 @@ -using System; -using ServiceConnect.Interfaces; -using Retries.Messages; - -namespace Retries.Consumer -{ - public class RetryMessageHandler : IMessageHandler - { - public void Execute(RetryMessage message) - { - Console.WriteLine("Handling message - {0}", message.CorrelationId); - - throw new NotImplementedException(); - } - - public IConsumeContext Context { get; set; } - } -} diff --git a/samples/Retries/Retries.Consumer/packages.config b/samples/Retries/Retries.Consumer/packages.config deleted file mode 100644 index cc862a6e0..000000000 --- a/samples/Retries/Retries.Consumer/packages.config +++ /dev/null @@ -1,4 +0,0 @@ - - - - \ No newline at end of file diff --git a/samples/Retries/Retries.Messages/Properties/AssemblyInfo.cs b/samples/Retries/Retries.Messages/Properties/AssemblyInfo.cs deleted file mode 100644 index d62e4a8dd..000000000 --- a/samples/Retries/Retries.Messages/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("Retries.Messages")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("Retries.Messages")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("dab0f1c8-ef84-4816-95c6-bb2948ac3cfa")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/Retries/Retries.Messages/Retries.Messages.csproj b/samples/Retries/Retries.Messages/Retries.Messages.csproj deleted file mode 100644 index 79245c2b3..000000000 --- a/samples/Retries/Retries.Messages/Retries.Messages.csproj +++ /dev/null @@ -1,60 +0,0 @@ - - - - - Debug - AnyCPU - {C2E46573-3097-4578-BB86-EB9B7A6396BA} - Library - Properties - Retries.Messages - Retries.Messages - v4.5.1 - 512 - - - - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/samples/Retries/Retries.Messages/RetryMessage.cs b/samples/Retries/Retries.Messages/RetryMessage.cs deleted file mode 100644 index cb49af726..000000000 --- a/samples/Retries/Retries.Messages/RetryMessage.cs +++ /dev/null @@ -1,10 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace Retries.Messages -{ - public class RetryMessage : Message - { - public RetryMessage(Guid correlationId) : base(correlationId) { } - } -} diff --git a/samples/Retries/Retries.Messages/packages.config b/samples/Retries/Retries.Messages/packages.config deleted file mode 100644 index cc862a6e0..000000000 --- a/samples/Retries/Retries.Messages/packages.config +++ /dev/null @@ -1,4 +0,0 @@ - - - - \ No newline at end of file diff --git a/samples/Retries/Retries.Producer/App.config b/samples/Retries/Retries.Producer/App.config deleted file mode 100644 index ed54d8d6a..000000000 --- a/samples/Retries/Retries.Producer/App.config +++ /dev/null @@ -1,7 +0,0 @@ - - - - - - - diff --git a/samples/Retries/Retries.Producer/Program.cs b/samples/Retries/Retries.Producer/Program.cs deleted file mode 100644 index 5896f12a7..000000000 --- a/samples/Retries/Retries.Producer/Program.cs +++ /dev/null @@ -1,31 +0,0 @@ -using System; -using ServiceConnect; -using Retries.Messages; - -namespace Retries.Producer -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Producer ***********"); - var bus = Bus.Initialize(config => - { - config.SetHost("localhost"); - config.AddQueueMapping(typeof (RetryMessage), "RetryTest"); - }); - - while (true) - { - Console.WriteLine("Press enter to send message"); - Console.ReadLine(); - - var id = Guid.NewGuid(); - bus.Send(new RetryMessage(id)); - - Console.WriteLine("Sent message - {0}", id); - Console.WriteLine(""); - } - } - } -} diff --git a/samples/Retries/Retries.Producer/Properties/AssemblyInfo.cs b/samples/Retries/Retries.Producer/Properties/AssemblyInfo.cs deleted file mode 100644 index a6aacfcce..000000000 --- a/samples/Retries/Retries.Producer/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("Retries.Producer")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("Retries.Producer")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2014")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("d9bee4a5-17f1-4c6b-8b61-2f691949292d")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/Retries/Retries.Producer/Retries.Producer.csproj b/samples/Retries/Retries.Producer/Retries.Producer.csproj deleted file mode 100644 index 6411e76eb..000000000 --- a/samples/Retries/Retries.Producer/Retries.Producer.csproj +++ /dev/null @@ -1,100 +0,0 @@ - - - - - Debug - AnyCPU - {2293DB62-D548-49ED-B378-526ED8A8DC40} - Exe - Properties - Retries.Producer - Retries.Producer - v4.5.1 - 512 - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - - {c2e46573-3097-4578-bb86-eb9b7a6396ba} - Retries.Messages - - - - - \ No newline at end of file diff --git a/samples/Retries/Retries.Producer/packages.config b/samples/Retries/Retries.Producer/packages.config deleted file mode 100644 index cc862a6e0..000000000 --- a/samples/Retries/Retries.Producer/packages.config +++ /dev/null @@ -1,4 +0,0 @@ - - - - \ No newline at end of file diff --git a/samples/Retries/Retries.sln b/samples/Retries/Retries.sln deleted file mode 100644 index 1e26fdcf2..000000000 --- a/samples/Retries/Retries.sln +++ /dev/null @@ -1,32 +0,0 @@ - -Microsoft Visual Studio Solution File, Format Version 12.00 -# Visual Studio 2012 -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Retries.Producer", "Retries.Producer\Retries.Producer.csproj", "{2293DB62-D548-49ED-B378-526ED8A8DC40}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Retries.Messages", "Retries.Messages\Retries.Messages.csproj", "{C2E46573-3097-4578-BB86-EB9B7A6396BA}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Retries.Consumer", "Retries.Consumer\Retries.Consumer.csproj", "{C945A9D7-9DA1-4DF5-9D11-718C450AB8E0}" -EndProject -Global - GlobalSection(SolutionConfigurationPlatforms) = preSolution - Debug|Any CPU = Debug|Any CPU - Release|Any CPU = Release|Any CPU - EndGlobalSection - GlobalSection(ProjectConfigurationPlatforms) = postSolution - {2293DB62-D548-49ED-B378-526ED8A8DC40}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {2293DB62-D548-49ED-B378-526ED8A8DC40}.Debug|Any CPU.Build.0 = Debug|Any CPU - {2293DB62-D548-49ED-B378-526ED8A8DC40}.Release|Any CPU.ActiveCfg = Release|Any CPU - {2293DB62-D548-49ED-B378-526ED8A8DC40}.Release|Any CPU.Build.0 = Release|Any CPU - {C2E46573-3097-4578-BB86-EB9B7A6396BA}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {C2E46573-3097-4578-BB86-EB9B7A6396BA}.Debug|Any CPU.Build.0 = Debug|Any CPU - {C2E46573-3097-4578-BB86-EB9B7A6396BA}.Release|Any CPU.ActiveCfg = Release|Any CPU - {C2E46573-3097-4578-BB86-EB9B7A6396BA}.Release|Any CPU.Build.0 = Release|Any CPU - {C945A9D7-9DA1-4DF5-9D11-718C450AB8E0}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {C945A9D7-9DA1-4DF5-9D11-718C450AB8E0}.Debug|Any CPU.Build.0 = Debug|Any CPU - {C945A9D7-9DA1-4DF5-9D11-718C450AB8E0}.Release|Any CPU.ActiveCfg = Release|Any CPU - {C945A9D7-9DA1-4DF5-9D11-718C450AB8E0}.Release|Any CPU.Build.0 = Release|Any CPU - EndGlobalSection - GlobalSection(SolutionProperties) = preSolution - HideSolutionNode = FALSE - EndGlobalSection -EndGlobal diff --git a/samples/RoutingSlip/RoutingSlip.Endpoint1/App.config b/samples/RoutingSlip/RoutingSlip.Endpoint1/App.config deleted file mode 100644 index 395c3ab49..000000000 --- a/samples/RoutingSlip/RoutingSlip.Endpoint1/App.config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - diff --git a/samples/RoutingSlip/RoutingSlip.Endpoint1/Program.cs b/samples/RoutingSlip/RoutingSlip.Endpoint1/Program.cs deleted file mode 100644 index 912f2382b..000000000 --- a/samples/RoutingSlip/RoutingSlip.Endpoint1/Program.cs +++ /dev/null @@ -1,16 +0,0 @@ -using System; -using ServiceConnect; - -namespace RoutingSlip.Endpoint1 -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Endpoint 1 ***********"); - Bus.Initialize(); - - Console.ReadLine(); - } - } -} diff --git a/samples/RoutingSlip/RoutingSlip.Endpoint1/Properties/AssemblyInfo.cs b/samples/RoutingSlip/RoutingSlip.Endpoint1/Properties/AssemblyInfo.cs deleted file mode 100644 index 408167547..000000000 --- a/samples/RoutingSlip/RoutingSlip.Endpoint1/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("RoutingSlip.Endpoint1")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("RoutingSlip.Endpoint1")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2015")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("732caa12-4e63-453f-a5b1-7c3c32970a68")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/RoutingSlip/RoutingSlip.Endpoint1/RoutingSlip.Endpoint1.csproj b/samples/RoutingSlip/RoutingSlip.Endpoint1/RoutingSlip.Endpoint1.csproj deleted file mode 100644 index 2ae6ab99b..000000000 --- a/samples/RoutingSlip/RoutingSlip.Endpoint1/RoutingSlip.Endpoint1.csproj +++ /dev/null @@ -1,104 +0,0 @@ - - - - - Debug - AnyCPU - {89231AA9-4EF7-4F5C-8DC7-6E003E395FDD} - Exe - Properties - RoutingSlip.Endpoint1 - RoutingSlip.Endpoint1 - v4.5.1 - 512 - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - - - {BF46E4B3-1483-4576-BCFD-C2B8C50BD7C1} - RoutingSlip.Messages - - - - - \ No newline at end of file diff --git a/samples/RoutingSlip/RoutingSlip.Endpoint1/RoutingSlipMessageHandler.cs b/samples/RoutingSlip/RoutingSlip.Endpoint1/RoutingSlipMessageHandler.cs deleted file mode 100644 index a338709a8..000000000 --- a/samples/RoutingSlip/RoutingSlip.Endpoint1/RoutingSlipMessageHandler.cs +++ /dev/null @@ -1,16 +0,0 @@ -using System; -using ServiceConnect.Interfaces; -using RoutingSlip.Messages; - -namespace RoutingSlip.Endpoint1 -{ - public class RoutingSlipMessageHandler : IMessageHandler - { - public void Execute(RoutingSlipMessage message) - { - Console.WriteLine("Endpoint1 received message - {0}", message.CorrelationId); - } - - public IConsumeContext Context { get; set; } - } -} diff --git a/samples/RoutingSlip/RoutingSlip.Endpoint1/packages.config b/samples/RoutingSlip/RoutingSlip.Endpoint1/packages.config deleted file mode 100644 index 6b8deb9c9..000000000 --- a/samples/RoutingSlip/RoutingSlip.Endpoint1/packages.config +++ /dev/null @@ -1,3 +0,0 @@ - - - \ No newline at end of file diff --git a/samples/RoutingSlip/RoutingSlip.Endpoint2/App.config b/samples/RoutingSlip/RoutingSlip.Endpoint2/App.config deleted file mode 100644 index d23fe9d12..000000000 --- a/samples/RoutingSlip/RoutingSlip.Endpoint2/App.config +++ /dev/null @@ -1,7 +0,0 @@ - - - - - - - diff --git a/samples/RoutingSlip/RoutingSlip.Endpoint2/Program.cs b/samples/RoutingSlip/RoutingSlip.Endpoint2/Program.cs deleted file mode 100644 index 73284c32f..000000000 --- a/samples/RoutingSlip/RoutingSlip.Endpoint2/Program.cs +++ /dev/null @@ -1,16 +0,0 @@ -using System; -using ServiceConnect; - -namespace RoutingSlip.Endpoint2 -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Endpoint 2 ***********"); - Bus.Initialize(); - - Console.ReadLine(); - } - } -} diff --git a/samples/RoutingSlip/RoutingSlip.Endpoint2/Properties/AssemblyInfo.cs b/samples/RoutingSlip/RoutingSlip.Endpoint2/Properties/AssemblyInfo.cs deleted file mode 100644 index b0fe4d14b..000000000 --- a/samples/RoutingSlip/RoutingSlip.Endpoint2/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("RoutingSlip.Endpoint2")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("RoutingSlip.Endpoint2")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2015")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("f9f3efc3-fbe7-4888-bdd4-5a1f5e58454c")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/RoutingSlip/RoutingSlip.Endpoint2/RoutingSlip.Endpoint2.csproj b/samples/RoutingSlip/RoutingSlip.Endpoint2/RoutingSlip.Endpoint2.csproj deleted file mode 100644 index 8042d2aa9..000000000 --- a/samples/RoutingSlip/RoutingSlip.Endpoint2/RoutingSlip.Endpoint2.csproj +++ /dev/null @@ -1,101 +0,0 @@ - - - - - Debug - AnyCPU - {57B28DD1-F1EE-42BF-8D78-1A82229D5BE8} - Exe - Properties - RoutingSlip.Endpoint2 - RoutingSlip.Endpoint2 - v4.5.1 - 512 - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - - - {BF46E4B3-1483-4576-BCFD-C2B8C50BD7C1} - RoutingSlip.Messages - - - - - \ No newline at end of file diff --git a/samples/RoutingSlip/RoutingSlip.Endpoint2/RoutingSlipMessageHandler.cs b/samples/RoutingSlip/RoutingSlip.Endpoint2/RoutingSlipMessageHandler.cs deleted file mode 100644 index 3ac3920ba..000000000 --- a/samples/RoutingSlip/RoutingSlip.Endpoint2/RoutingSlipMessageHandler.cs +++ /dev/null @@ -1,16 +0,0 @@ -using System; -using ServiceConnect.Interfaces; -using RoutingSlip.Messages; - -namespace RoutingSlip.Endpoint2 -{ - public class RoutingSlipMessageHandler : IMessageHandler - { - public void Execute(RoutingSlipMessage message) - { - Console.WriteLine("Endpoint2 received message - {0}", message.CorrelationId); - } - - public IConsumeContext Context { get; set; } - } -} diff --git a/samples/RoutingSlip/RoutingSlip.Endpoint2/packages.config b/samples/RoutingSlip/RoutingSlip.Endpoint2/packages.config deleted file mode 100644 index 6b8deb9c9..000000000 --- a/samples/RoutingSlip/RoutingSlip.Endpoint2/packages.config +++ /dev/null @@ -1,3 +0,0 @@ - - - \ No newline at end of file diff --git a/samples/RoutingSlip/RoutingSlip.Messages/Properties/AssemblyInfo.cs b/samples/RoutingSlip/RoutingSlip.Messages/Properties/AssemblyInfo.cs deleted file mode 100644 index e42027d84..000000000 --- a/samples/RoutingSlip/RoutingSlip.Messages/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("RoutingSlip.Messages")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("RoutingSlip.Messages")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2015")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("7e61763f-f80f-4b64-a699-075e6c00f123")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/RoutingSlip/RoutingSlip.Messages/RoutingSlip.Messages.csproj b/samples/RoutingSlip/RoutingSlip.Messages/RoutingSlip.Messages.csproj deleted file mode 100644 index 93a721a9d..000000000 --- a/samples/RoutingSlip/RoutingSlip.Messages/RoutingSlip.Messages.csproj +++ /dev/null @@ -1,60 +0,0 @@ - - - - - Debug - AnyCPU - {BF46E4B3-1483-4576-BCFD-C2B8C50BD7C1} - Library - Properties - RoutingSlip.Messages - RoutingSlip.Messages - v4.5.1 - 512 - - - - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/samples/RoutingSlip/RoutingSlip.Messages/RoutingSlipMessage.cs b/samples/RoutingSlip/RoutingSlip.Messages/RoutingSlipMessage.cs deleted file mode 100644 index f54cb4acc..000000000 --- a/samples/RoutingSlip/RoutingSlip.Messages/RoutingSlipMessage.cs +++ /dev/null @@ -1,12 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace RoutingSlip.Messages -{ - public class RoutingSlipMessage : Message - { - public RoutingSlipMessage(Guid correlationId) : base(correlationId) - { - } - } -} diff --git a/samples/RoutingSlip/RoutingSlip.Messages/packages.config b/samples/RoutingSlip/RoutingSlip.Messages/packages.config deleted file mode 100644 index cc862a6e0..000000000 --- a/samples/RoutingSlip/RoutingSlip.Messages/packages.config +++ /dev/null @@ -1,4 +0,0 @@ - - - - \ No newline at end of file diff --git a/samples/RoutingSlip/RoutingSlip.Producer/App.config b/samples/RoutingSlip/RoutingSlip.Producer/App.config deleted file mode 100644 index ed54d8d6a..000000000 --- a/samples/RoutingSlip/RoutingSlip.Producer/App.config +++ /dev/null @@ -1,7 +0,0 @@ - - - - - - - diff --git a/samples/RoutingSlip/RoutingSlip.Producer/Program.cs b/samples/RoutingSlip/RoutingSlip.Producer/Program.cs deleted file mode 100644 index 4fc8c66bd..000000000 --- a/samples/RoutingSlip/RoutingSlip.Producer/Program.cs +++ /dev/null @@ -1,28 +0,0 @@ -using System; -using System.Collections.Generic; -using ServiceConnect; -using RoutingSlip.Messages; - -namespace RoutingSlip.Producer -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Producer ***********"); - var bus = Bus.Initialize(config => - { - config.ScanForMesssageHandlers = false; - }); - - Console.WriteLine("Press enter to send message"); - Console.ReadLine(); - - var id = Guid.NewGuid(); - bus.Route(new RoutingSlipMessage(id), new List { "RoutingSlip.Endpoint1", "RoutingSlip.Endpoint2" }); - - Console.WriteLine("Routed message - {0}", id); - Console.WriteLine(""); - } - } -} diff --git a/samples/RoutingSlip/RoutingSlip.Producer/Properties/AssemblyInfo.cs b/samples/RoutingSlip/RoutingSlip.Producer/Properties/AssemblyInfo.cs deleted file mode 100644 index 4fc982961..000000000 --- a/samples/RoutingSlip/RoutingSlip.Producer/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("RoutingSlip.Producer")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("RoutingSlip.Producer")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2015")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("8f282db7-c5d8-4f98-a498-62588ee625ca")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/RoutingSlip/RoutingSlip.Producer/RoutingSlip.Producer.csproj b/samples/RoutingSlip/RoutingSlip.Producer/RoutingSlip.Producer.csproj deleted file mode 100644 index 006e630b1..000000000 --- a/samples/RoutingSlip/RoutingSlip.Producer/RoutingSlip.Producer.csproj +++ /dev/null @@ -1,103 +0,0 @@ - - - - - Debug - AnyCPU - {52DE7FE3-B28D-431C-801D-0158E9495112} - Exe - Properties - RoutingSlip.Producer - RoutingSlip.Producer - v4.5.1 - 512 - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - - {BF46E4B3-1483-4576-BCFD-C2B8C50BD7C1} - RoutingSlip.Messages - - - - - \ No newline at end of file diff --git a/samples/RoutingSlip/RoutingSlip.Producer/packages.config b/samples/RoutingSlip/RoutingSlip.Producer/packages.config deleted file mode 100644 index 6b8deb9c9..000000000 --- a/samples/RoutingSlip/RoutingSlip.Producer/packages.config +++ /dev/null @@ -1,3 +0,0 @@ - - - \ No newline at end of file diff --git a/samples/RoutingSlip/RoutingSlip.sln b/samples/RoutingSlip/RoutingSlip.sln deleted file mode 100644 index af06d1992..000000000 --- a/samples/RoutingSlip/RoutingSlip.sln +++ /dev/null @@ -1,40 +0,0 @@ - -Microsoft Visual Studio Solution File, Format Version 12.00 -# Visual Studio 2013 -VisualStudioVersion = 12.0.30723.0 -MinimumVisualStudioVersion = 10.0.40219.1 -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "RoutingSlip.Producer", "RoutingSlip.Producer\RoutingSlip.Producer.csproj", "{52DE7FE3-B28D-431C-801D-0158E9495112}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "RoutingSlip.Endpoint1", "RoutingSlip.Endpoint1\RoutingSlip.Endpoint1.csproj", "{89231AA9-4EF7-4F5C-8DC7-6E003E395FDD}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "RoutingSlip.Endpoint2", "RoutingSlip.Endpoint2\RoutingSlip.Endpoint2.csproj", "{57B28DD1-F1EE-42BF-8D78-1A82229D5BE8}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "RoutingSlip.Messages", "RoutingSlip.Messages\RoutingSlip.Messages.csproj", "{BF46E4B3-1483-4576-BCFD-C2B8C50BD7C1}" -EndProject -Global - GlobalSection(SolutionConfigurationPlatforms) = preSolution - Debug|Any CPU = Debug|Any CPU - Release|Any CPU = Release|Any CPU - EndGlobalSection - GlobalSection(ProjectConfigurationPlatforms) = postSolution - {52DE7FE3-B28D-431C-801D-0158E9495112}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {52DE7FE3-B28D-431C-801D-0158E9495112}.Debug|Any CPU.Build.0 = Debug|Any CPU - {52DE7FE3-B28D-431C-801D-0158E9495112}.Release|Any CPU.ActiveCfg = Release|Any CPU - {52DE7FE3-B28D-431C-801D-0158E9495112}.Release|Any CPU.Build.0 = Release|Any CPU - {89231AA9-4EF7-4F5C-8DC7-6E003E395FDD}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {89231AA9-4EF7-4F5C-8DC7-6E003E395FDD}.Debug|Any CPU.Build.0 = Debug|Any CPU - {89231AA9-4EF7-4F5C-8DC7-6E003E395FDD}.Release|Any CPU.ActiveCfg = Release|Any CPU - {89231AA9-4EF7-4F5C-8DC7-6E003E395FDD}.Release|Any CPU.Build.0 = Release|Any CPU - {57B28DD1-F1EE-42BF-8D78-1A82229D5BE8}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {57B28DD1-F1EE-42BF-8D78-1A82229D5BE8}.Debug|Any CPU.Build.0 = Debug|Any CPU - {57B28DD1-F1EE-42BF-8D78-1A82229D5BE8}.Release|Any CPU.ActiveCfg = Release|Any CPU - {57B28DD1-F1EE-42BF-8D78-1A82229D5BE8}.Release|Any CPU.Build.0 = Release|Any CPU - {BF46E4B3-1483-4576-BCFD-C2B8C50BD7C1}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {BF46E4B3-1483-4576-BCFD-C2B8C50BD7C1}.Debug|Any CPU.Build.0 = Debug|Any CPU - {BF46E4B3-1483-4576-BCFD-C2B8C50BD7C1}.Release|Any CPU.ActiveCfg = Release|Any CPU - {BF46E4B3-1483-4576-BCFD-C2B8C50BD7C1}.Release|Any CPU.Build.0 = Release|Any CPU - EndGlobalSection - GlobalSection(SolutionProperties) = preSolution - HideSolutionNode = FALSE - EndGlobalSection -EndGlobal diff --git a/samples/ScatterGather/ScatterGather.Consumer1/App.config b/samples/ScatterGather/ScatterGather.Consumer1/App.config deleted file mode 100644 index d0feca6f7..000000000 --- a/samples/ScatterGather/ScatterGather.Consumer1/App.config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - diff --git a/samples/ScatterGather/ScatterGather.Consumer1/Handler.cs b/samples/ScatterGather/ScatterGather.Consumer1/Handler.cs deleted file mode 100644 index 502524c64..000000000 --- a/samples/ScatterGather/ScatterGather.Consumer1/Handler.cs +++ /dev/null @@ -1,27 +0,0 @@ -using System; -using System.Threading; -using ServiceConnect.Interfaces; -using ScatterGather.Messages; - -namespace ScatterGather.Consumer1 -{ - public class Handler : IMessageHandler - { - public void Execute(Request message) - { - Console.WriteLine("Consumer 1 Received Message - {0}", message.CorrelationId); - - if (message.Delay) - { - Thread.Sleep(1000); - } - - Context.Reply(new Response(message.CorrelationId) - { - Endpoint = "Consumer1" - }); - } - - public IConsumeContext Context { get; set; } - } -} \ No newline at end of file diff --git a/samples/ScatterGather/ScatterGather.Consumer1/Program.cs b/samples/ScatterGather/ScatterGather.Consumer1/Program.cs deleted file mode 100644 index 46841521b..000000000 --- a/samples/ScatterGather/ScatterGather.Consumer1/Program.cs +++ /dev/null @@ -1,23 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using System.Text; -using System.Threading.Tasks; -using ServiceConnect; - -namespace ScatterGather.Consumer1 -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Consumer 1 ***********"); - Bus.Initialize(x => - { - x.SetQueueName("Consumer1"); - }); - - Console.ReadLine(); - } - } -} diff --git a/samples/ScatterGather/ScatterGather.Consumer1/Properties/AssemblyInfo.cs b/samples/ScatterGather/ScatterGather.Consumer1/Properties/AssemblyInfo.cs deleted file mode 100644 index f5160b1be..000000000 --- a/samples/ScatterGather/ScatterGather.Consumer1/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("ScatterGather.Consumer1")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("ScatterGather.Consumer1")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2015")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("f7739a1c-663b-4df6-a8d2-71842e4f324a")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/ScatterGather/ScatterGather.Consumer1/ScatterGather.Consumer1.csproj b/samples/ScatterGather/ScatterGather.Consumer1/ScatterGather.Consumer1.csproj deleted file mode 100644 index 238c6c29a..000000000 --- a/samples/ScatterGather/ScatterGather.Consumer1/ScatterGather.Consumer1.csproj +++ /dev/null @@ -1,103 +0,0 @@ - - - - - Debug - AnyCPU - {1E47EE7B-2C28-49F6-ABF4-16A9D3E6AFCF} - Exe - Properties - ScatterGather.Consumer1 - ScatterGather.Consumer1 - v4.5.1 - 512 - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - - {073c29ac-3a1e-44b8-9ec1-c20d18655fe2} - ScatterGather.Messages - - - - - \ No newline at end of file diff --git a/samples/ScatterGather/ScatterGather.Consumer2/App.config b/samples/ScatterGather/ScatterGather.Consumer2/App.config deleted file mode 100644 index d0feca6f7..000000000 --- a/samples/ScatterGather/ScatterGather.Consumer2/App.config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - diff --git a/samples/ScatterGather/ScatterGather.Consumer2/Handler.cs b/samples/ScatterGather/ScatterGather.Consumer2/Handler.cs deleted file mode 100644 index 9e3bd69f0..000000000 --- a/samples/ScatterGather/ScatterGather.Consumer2/Handler.cs +++ /dev/null @@ -1,22 +0,0 @@ -using System; -using System.Threading; -using ServiceConnect.Interfaces; -using ScatterGather.Messages; - -namespace ScatterGather.Consumer2 -{ - public class Handler : IMessageHandler - { - public void Execute(Request message) - { - Console.WriteLine("Consumer 2 Received Message - {0}", message.CorrelationId); - - Context.Reply(new Response(message.CorrelationId) - { - Endpoint = "Consumer2" - }); - } - - public IConsumeContext Context { get; set; } - } -} \ No newline at end of file diff --git a/samples/ScatterGather/ScatterGather.Consumer2/Program.cs b/samples/ScatterGather/ScatterGather.Consumer2/Program.cs deleted file mode 100644 index b6e997d1f..000000000 --- a/samples/ScatterGather/ScatterGather.Consumer2/Program.cs +++ /dev/null @@ -1,23 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using System.Text; -using System.Threading.Tasks; -using ServiceConnect; - -namespace ScatterGather.Consumer2 -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Consumer 2 ***********"); - Bus.Initialize(x => - { - x.SetQueueName("Consumer2"); - }); - - Console.ReadLine(); - } - } -} diff --git a/samples/ScatterGather/ScatterGather.Consumer2/Properties/AssemblyInfo.cs b/samples/ScatterGather/ScatterGather.Consumer2/Properties/AssemblyInfo.cs deleted file mode 100644 index 22ec4f216..000000000 --- a/samples/ScatterGather/ScatterGather.Consumer2/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("ScatterGather.Consumer2")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("ScatterGather.Consumer2")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2015")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("5875f116-4c7a-4dc3-a7c6-558206155953")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/ScatterGather/ScatterGather.Consumer2/ScatterGather.Consumer2.csproj b/samples/ScatterGather/ScatterGather.Consumer2/ScatterGather.Consumer2.csproj deleted file mode 100644 index 74fb5843a..000000000 --- a/samples/ScatterGather/ScatterGather.Consumer2/ScatterGather.Consumer2.csproj +++ /dev/null @@ -1,103 +0,0 @@ - - - - - Debug - AnyCPU - {E85BC4BD-9D40-46CA-8E13-CEC5AAEAD7DE} - Exe - Properties - ScatterGather.Consumer2 - ScatterGather.Consumer2 - v4.5.1 - 512 - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - - {073c29ac-3a1e-44b8-9ec1-c20d18655fe2} - ScatterGather.Messages - - - - - \ No newline at end of file diff --git a/samples/ScatterGather/ScatterGather.Messages/Properties/AssemblyInfo.cs b/samples/ScatterGather/ScatterGather.Messages/Properties/AssemblyInfo.cs deleted file mode 100644 index 62c2f76bf..000000000 --- a/samples/ScatterGather/ScatterGather.Messages/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("ScatterGather.Messages")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("ScatterGather.Messages")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2015")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("e125d5fb-c03e-4b1e-9088-95b994d4d2b9")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/ScatterGather/ScatterGather.Messages/Request.cs b/samples/ScatterGather/ScatterGather.Messages/Request.cs deleted file mode 100644 index 254c9fcc4..000000000 --- a/samples/ScatterGather/ScatterGather.Messages/Request.cs +++ /dev/null @@ -1,18 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using System.Text; -using System.Threading.Tasks; -using ServiceConnect.Interfaces; - -namespace ScatterGather.Messages -{ - public class Request : Message - { - public Request(Guid correlationId) : base(correlationId) - { - } - - public bool Delay { get; set; } - } -} diff --git a/samples/ScatterGather/ScatterGather.Messages/Response.cs b/samples/ScatterGather/ScatterGather.Messages/Response.cs deleted file mode 100644 index a11fac435..000000000 --- a/samples/ScatterGather/ScatterGather.Messages/Response.cs +++ /dev/null @@ -1,18 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using System.Text; -using System.Threading.Tasks; -using ServiceConnect.Interfaces; - -namespace ScatterGather.Messages -{ - public class Response : Message - { - public Response(Guid correlationId) : base(correlationId) - { - } - - public string Endpoint { get; set; } - } -} diff --git a/samples/ScatterGather/ScatterGather.Messages/ScatterGather.Messages.csproj b/samples/ScatterGather/ScatterGather.Messages/ScatterGather.Messages.csproj deleted file mode 100644 index 5173ccac2..000000000 --- a/samples/ScatterGather/ScatterGather.Messages/ScatterGather.Messages.csproj +++ /dev/null @@ -1,58 +0,0 @@ - - - - - Debug - AnyCPU - {073C29AC-3A1E-44B8-9EC1-C20D18655FE2} - Library - Properties - ScatterGather.Messages - ScatterGather.Messages - v4.5.1 - 512 - - - - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/samples/ScatterGather/ScatterGather.sln b/samples/ScatterGather/ScatterGather.sln deleted file mode 100644 index 0846ad497..000000000 --- a/samples/ScatterGather/ScatterGather.sln +++ /dev/null @@ -1,40 +0,0 @@ - -Microsoft Visual Studio Solution File, Format Version 12.00 -# Visual Studio 2013 -VisualStudioVersion = 12.0.30723.0 -MinimumVisualStudioVersion = 10.0.40219.1 -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ScatterGather.Publisher", "ScatterGather\ScatterGather.Publisher.csproj", "{19EE692D-09FB-45C5-B290-846BBDDCAFA6}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ScatterGather.Consumer1", "ScatterGather.Consumer1\ScatterGather.Consumer1.csproj", "{1E47EE7B-2C28-49F6-ABF4-16A9D3E6AFCF}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ScatterGather.Consumer2", "ScatterGather.Consumer2\ScatterGather.Consumer2.csproj", "{E85BC4BD-9D40-46CA-8E13-CEC5AAEAD7DE}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ScatterGather.Messages", "ScatterGather.Messages\ScatterGather.Messages.csproj", "{073C29AC-3A1E-44B8-9EC1-C20D18655FE2}" -EndProject -Global - GlobalSection(SolutionConfigurationPlatforms) = preSolution - Debug|Any CPU = Debug|Any CPU - Release|Any CPU = Release|Any CPU - EndGlobalSection - GlobalSection(ProjectConfigurationPlatforms) = postSolution - {19EE692D-09FB-45C5-B290-846BBDDCAFA6}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {19EE692D-09FB-45C5-B290-846BBDDCAFA6}.Debug|Any CPU.Build.0 = Debug|Any CPU - {19EE692D-09FB-45C5-B290-846BBDDCAFA6}.Release|Any CPU.ActiveCfg = Release|Any CPU - {19EE692D-09FB-45C5-B290-846BBDDCAFA6}.Release|Any CPU.Build.0 = Release|Any CPU - {1E47EE7B-2C28-49F6-ABF4-16A9D3E6AFCF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {1E47EE7B-2C28-49F6-ABF4-16A9D3E6AFCF}.Debug|Any CPU.Build.0 = Debug|Any CPU - {1E47EE7B-2C28-49F6-ABF4-16A9D3E6AFCF}.Release|Any CPU.ActiveCfg = Release|Any CPU - {1E47EE7B-2C28-49F6-ABF4-16A9D3E6AFCF}.Release|Any CPU.Build.0 = Release|Any CPU - {E85BC4BD-9D40-46CA-8E13-CEC5AAEAD7DE}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {E85BC4BD-9D40-46CA-8E13-CEC5AAEAD7DE}.Debug|Any CPU.Build.0 = Debug|Any CPU - {E85BC4BD-9D40-46CA-8E13-CEC5AAEAD7DE}.Release|Any CPU.ActiveCfg = Release|Any CPU - {E85BC4BD-9D40-46CA-8E13-CEC5AAEAD7DE}.Release|Any CPU.Build.0 = Release|Any CPU - {073C29AC-3A1E-44B8-9EC1-C20D18655FE2}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {073C29AC-3A1E-44B8-9EC1-C20D18655FE2}.Debug|Any CPU.Build.0 = Debug|Any CPU - {073C29AC-3A1E-44B8-9EC1-C20D18655FE2}.Release|Any CPU.ActiveCfg = Release|Any CPU - {073C29AC-3A1E-44B8-9EC1-C20D18655FE2}.Release|Any CPU.Build.0 = Release|Any CPU - EndGlobalSection - GlobalSection(SolutionProperties) = preSolution - HideSolutionNode = FALSE - EndGlobalSection -EndGlobal diff --git a/samples/ScatterGather/ScatterGather/App.config b/samples/ScatterGather/ScatterGather/App.config deleted file mode 100644 index d0feca6f7..000000000 --- a/samples/ScatterGather/ScatterGather/App.config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - diff --git a/samples/ScatterGather/ScatterGather/Program.cs b/samples/ScatterGather/ScatterGather/Program.cs deleted file mode 100644 index 28bd239f8..000000000 --- a/samples/ScatterGather/ScatterGather/Program.cs +++ /dev/null @@ -1,67 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using System.Text; -using System.Threading.Tasks; -using ServiceConnect; -using ServiceConnect.Interfaces; -using ScatterGather.Messages; - -namespace ScatterGather -{ - class Program - { - private static IBus _bus; - - static void Main(string[] args) - { - Console.WriteLine("*********** Publisher ***********"); - _bus = Bus.Initialize(x => - { - }); - - while (true) - { - Console.WriteLine("Choose a option"); - Console.WriteLine("1 Scatter Gather Expect 2 replies"); - Console.WriteLine("2 Scatter Gather unknown number of replies"); - - var result = Console.ReadLine(); - switch (result) - { - case "1": - ScatterGatherKnown(); - break; - case "2": - ScatterGatherUnknown(); - break; - } - } - } - - private static void ScatterGatherUnknown() - { - var id = Guid.NewGuid(); - var responses = _bus.PublishRequest(new Request(id){ Delay = true }, timeout: 500); - - foreach (var response in responses) - { - Console.WriteLine("Received response from - {0}", response.Endpoint); - } - - Console.WriteLine(""); - } - - private static void ScatterGatherKnown() - { - var id = Guid.NewGuid(); - var responses = _bus.PublishRequest(new Request(id), 2); - foreach (var response in responses) - { - Console.WriteLine("Received response from - {0}", response.Endpoint); - } - - Console.WriteLine(""); - } - } -} diff --git a/samples/ScatterGather/ScatterGather/Properties/AssemblyInfo.cs b/samples/ScatterGather/ScatterGather/Properties/AssemblyInfo.cs deleted file mode 100644 index b3ec26063..000000000 --- a/samples/ScatterGather/ScatterGather/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("ScatterGather")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("ScatterGather")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2015")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("0639a76e-116c-4d10-a014-422d435bc2cf")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/ScatterGather/ScatterGather/ScatterGather.Publisher.csproj b/samples/ScatterGather/ScatterGather/ScatterGather.Publisher.csproj deleted file mode 100644 index ebec930c0..000000000 --- a/samples/ScatterGather/ScatterGather/ScatterGather.Publisher.csproj +++ /dev/null @@ -1,102 +0,0 @@ - - - - - Debug - AnyCPU - {19EE692D-09FB-45C5-B290-846BBDDCAFA6} - Exe - Properties - ScatterGather - ScatterGather - v4.5.1 - 512 - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - {073c29ac-3a1e-44b8-9ec1-c20d18655fe2} - ScatterGather.Messages - - - - - \ No newline at end of file diff --git a/samples/Ssl/Ssl.Consumer/App.config b/samples/Ssl/Ssl.Consumer/App.config deleted file mode 100644 index d0feca6f7..000000000 --- a/samples/Ssl/Ssl.Consumer/App.config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - diff --git a/samples/Ssl/Ssl.Consumer/Consumer.cs b/samples/Ssl/Ssl.Consumer/Consumer.cs deleted file mode 100644 index 294217fd5..000000000 --- a/samples/Ssl/Ssl.Consumer/Consumer.cs +++ /dev/null @@ -1,16 +0,0 @@ -using System; -using ServiceConnect.Interfaces; -using Ssl.Messages; - -namespace Ssl.Consumer -{ - public class Consumer : IMessageHandler - { - public void Execute(SslMessage message) - { - Console.WriteLine("Consumed message"); - } - - public IConsumeContext Context { get; set; } - } -} \ No newline at end of file diff --git a/samples/Ssl/Ssl.Consumer/Program.cs b/samples/Ssl/Ssl.Consumer/Program.cs deleted file mode 100644 index 783e4b154..000000000 --- a/samples/Ssl/Ssl.Consumer/Program.cs +++ /dev/null @@ -1,18 +0,0 @@ -using ServiceConnect; - -namespace Ssl.Consumer -{ - class Program - { - static void Main(string[] args) - { - var bus = Bus.Initialize(config => - { - config.TransportSettings.SslEnabled = true; - config.SetQueueName("Ssl.Consumer"); - config.ScanForMesssageHandlers = true; - }); - bus.StartConsuming(); - } - } -} diff --git a/samples/Ssl/Ssl.Consumer/Properties/AssemblyInfo.cs b/samples/Ssl/Ssl.Consumer/Properties/AssemblyInfo.cs deleted file mode 100644 index 4f7a12eef..000000000 --- a/samples/Ssl/Ssl.Consumer/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("Ssl.Consumer")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("Ssl.Consumer")] -[assembly: AssemblyCopyright("Copyright © Ruffer PLC 2015")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("f0c8660e-5400-4cc0-972d-2ac2693df258")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/Ssl/Ssl.Consumer/Ssl.Consumer.csproj b/samples/Ssl/Ssl.Consumer/Ssl.Consumer.csproj deleted file mode 100644 index 4315a2368..000000000 --- a/samples/Ssl/Ssl.Consumer/Ssl.Consumer.csproj +++ /dev/null @@ -1,100 +0,0 @@ - - - - - Debug - AnyCPU - {288DCC66-4923-4E32-9CF1-5848D060DB4F} - Exe - Properties - Ssl.Consumer - Ssl.Consumer - v4.5.1 - 512 - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - - {CCB87C5A-428B-42CF-BC4C-4209E467C522} - Ssl.Messages - - - - - \ No newline at end of file diff --git a/samples/Ssl/Ssl.Messages/App.config b/samples/Ssl/Ssl.Messages/App.config deleted file mode 100644 index d0feca6f7..000000000 --- a/samples/Ssl/Ssl.Messages/App.config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - diff --git a/samples/Ssl/Ssl.Messages/Properties/AssemblyInfo.cs b/samples/Ssl/Ssl.Messages/Properties/AssemblyInfo.cs deleted file mode 100644 index 7d3e0ce4d..000000000 --- a/samples/Ssl/Ssl.Messages/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("Ssl.Messages")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("Ssl.Messages")] -[assembly: AssemblyCopyright("Copyright © Ruffer PLC 2015")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("48c34fb9-2c9b-4047-a70d-50752de9b883")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/Ssl/Ssl.Messages/Ssl.Messages.csproj b/samples/Ssl/Ssl.Messages/Ssl.Messages.csproj deleted file mode 100644 index e4facb939..000000000 --- a/samples/Ssl/Ssl.Messages/Ssl.Messages.csproj +++ /dev/null @@ -1,65 +0,0 @@ - - - - - Debug - AnyCPU - {CCB87C5A-428B-42CF-BC4C-4209E467C522} - Library - Properties - Ssl.Messages - Ssl.Messages - v4.5.1 - 512 - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/samples/Ssl/Ssl.Messages/SslMessage.cs b/samples/Ssl/Ssl.Messages/SslMessage.cs deleted file mode 100644 index 7f0986b48..000000000 --- a/samples/Ssl/Ssl.Messages/SslMessage.cs +++ /dev/null @@ -1,12 +0,0 @@ -using System; -using ServiceConnect.Interfaces; - -namespace Ssl.Messages -{ - public class SslMessage : Message - { - public SslMessage(Guid correlationId) : base(correlationId) - { - } - } -} \ No newline at end of file diff --git a/samples/Ssl/Ssl.sln b/samples/Ssl/Ssl.sln deleted file mode 100644 index 5317b8f59..000000000 --- a/samples/Ssl/Ssl.sln +++ /dev/null @@ -1,34 +0,0 @@ - -Microsoft Visual Studio Solution File, Format Version 12.00 -# Visual Studio 2013 -VisualStudioVersion = 12.0.30723.0 -MinimumVisualStudioVersion = 10.0.40219.1 -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Ssl.Producer", "Ssl\Ssl.Producer.csproj", "{7AD3A73D-682A-48EF-979E-448B8CF1C4B4}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Ssl.Consumer", "Ssl.Consumer\Ssl.Consumer.csproj", "{288DCC66-4923-4E32-9CF1-5848D060DB4F}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Ssl.Messages", "Ssl.Messages\Ssl.Messages.csproj", "{CCB87C5A-428B-42CF-BC4C-4209E467C522}" -EndProject -Global - GlobalSection(SolutionConfigurationPlatforms) = preSolution - Debug|Any CPU = Debug|Any CPU - Release|Any CPU = Release|Any CPU - EndGlobalSection - GlobalSection(ProjectConfigurationPlatforms) = postSolution - {7AD3A73D-682A-48EF-979E-448B8CF1C4B4}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {7AD3A73D-682A-48EF-979E-448B8CF1C4B4}.Debug|Any CPU.Build.0 = Debug|Any CPU - {7AD3A73D-682A-48EF-979E-448B8CF1C4B4}.Release|Any CPU.ActiveCfg = Release|Any CPU - {7AD3A73D-682A-48EF-979E-448B8CF1C4B4}.Release|Any CPU.Build.0 = Release|Any CPU - {288DCC66-4923-4E32-9CF1-5848D060DB4F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {288DCC66-4923-4E32-9CF1-5848D060DB4F}.Debug|Any CPU.Build.0 = Debug|Any CPU - {288DCC66-4923-4E32-9CF1-5848D060DB4F}.Release|Any CPU.ActiveCfg = Release|Any CPU - {288DCC66-4923-4E32-9CF1-5848D060DB4F}.Release|Any CPU.Build.0 = Release|Any CPU - {CCB87C5A-428B-42CF-BC4C-4209E467C522}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {CCB87C5A-428B-42CF-BC4C-4209E467C522}.Debug|Any CPU.Build.0 = Debug|Any CPU - {CCB87C5A-428B-42CF-BC4C-4209E467C522}.Release|Any CPU.ActiveCfg = Release|Any CPU - {CCB87C5A-428B-42CF-BC4C-4209E467C522}.Release|Any CPU.Build.0 = Release|Any CPU - EndGlobalSection - GlobalSection(SolutionProperties) = preSolution - HideSolutionNode = FALSE - EndGlobalSection -EndGlobal diff --git a/samples/Ssl/Ssl/App.config b/samples/Ssl/Ssl/App.config deleted file mode 100644 index d0feca6f7..000000000 --- a/samples/Ssl/Ssl/App.config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - diff --git a/samples/Ssl/Ssl/Program.cs b/samples/Ssl/Ssl/Program.cs deleted file mode 100644 index 1081383d4..000000000 --- a/samples/Ssl/Ssl/Program.cs +++ /dev/null @@ -1,25 +0,0 @@ -using System; -using ServiceConnect; -using Ssl.Messages; - -namespace Ssl.Producer -{ - class Program - { - static void Main(string[] args) - { - var bus = Bus.Initialize(config => - { - config.TransportSettings.SslEnabled = true; - config.SetQueueName("Ssl.Producer"); - config.ScanForMesssageHandlers = true; - }); - - while (true) - { - bus.Send("Ssl.Consumer", new SslMessage(Guid.NewGuid())); - Console.ReadLine(); - } - } - } -} diff --git a/samples/Ssl/Ssl/Properties/AssemblyInfo.cs b/samples/Ssl/Ssl/Properties/AssemblyInfo.cs deleted file mode 100644 index 96ad0246a..000000000 --- a/samples/Ssl/Ssl/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("Ssl.Producer")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("Ssl")] -[assembly: AssemblyCopyright("Copyright © Ruffer PLC 2015")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("160b62e2-e757-4367-b263-599dc4df8666")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/Ssl/Ssl/Ssl.Producer.csproj b/samples/Ssl/Ssl/Ssl.Producer.csproj deleted file mode 100644 index 022eb6f43..000000000 --- a/samples/Ssl/Ssl/Ssl.Producer.csproj +++ /dev/null @@ -1,99 +0,0 @@ - - - - - Debug - AnyCPU - {7AD3A73D-682A-48EF-979E-448B8CF1C4B4} - Exe - Properties - Ssl.Producer - Ssl.Producer - v4.5.1 - 512 - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - {CCB87C5A-428B-42CF-BC4C-4209E467C522} - Ssl.Messages - - - - - \ No newline at end of file diff --git a/samples/Streaming/.vs/Streaming/v15/sqlite3/storage.ide b/samples/Streaming/.vs/Streaming/v15/sqlite3/storage.ide deleted file mode 100644 index 7a8bea0db..000000000 Binary files a/samples/Streaming/.vs/Streaming/v15/sqlite3/storage.ide and /dev/null differ diff --git a/samples/Streaming/Streaming.Consumer/App.config b/samples/Streaming/Streaming.Consumer/App.config deleted file mode 100644 index d0feca6f7..000000000 --- a/samples/Streaming/Streaming.Consumer/App.config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - diff --git a/samples/Streaming/Streaming.Consumer/Program.cs b/samples/Streaming/Streaming.Consumer/Program.cs deleted file mode 100644 index 633a08df7..000000000 --- a/samples/Streaming/Streaming.Consumer/Program.cs +++ /dev/null @@ -1,24 +0,0 @@ -using System; -using System.Collections.Generic; -using ServiceConnect; -using Streaming.Messages; - -namespace Streaming.Consumer -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Consumer 1 ***********"); - Bus.Initialize(x => - { - x.SetQueueName("StreamConsumer"); - x.PurgeQueuesOnStart(); - x.SetHost("localhost"); - x.SetNumberOfClients(10); - }); - - Console.ReadLine(); - } - } -} diff --git a/samples/Streaming/Streaming.Consumer/Properties/AssemblyInfo.cs b/samples/Streaming/Streaming.Consumer/Properties/AssemblyInfo.cs deleted file mode 100644 index 063e7620a..000000000 --- a/samples/Streaming/Streaming.Consumer/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("Streaming.Consumer")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("Streaming.Consumer")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2015")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("b4326643-1fae-48c9-bb04-10ea07415085")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/Streaming/Streaming.Consumer/StreamHandler.cs b/samples/Streaming/Streaming.Consumer/StreamHandler.cs deleted file mode 100644 index 69c3c4198..000000000 --- a/samples/Streaming/Streaming.Consumer/StreamHandler.cs +++ /dev/null @@ -1,32 +0,0 @@ -using System; -using System.IO; -using ServiceConnect.Interfaces; -using Streaming.Messages; - -namespace Streaming.Consumer -{ - public class StreamHandler : IStreamHandler - { - public IMessageBusReadStream Stream { get; set; } - - public void Execute(StartStreamMessage message) - { - Console.WriteLine("Reading stream - {0}", message.Path); - var ms = new FileStream(message.Path, FileMode.Create); - - while (!Stream.IsComplete()) - { - var bytes = Stream.Read(); - if (bytes.Length > 0) - { - Console.WriteLine("Writing..."); - ms.Write(bytes, 0, bytes.Length); - } - } - - ms.Close(); - - Console.WriteLine("Stream Read - {0}", message.Path); - } - } -} \ No newline at end of file diff --git a/samples/Streaming/Streaming.Consumer/Streaming.Consumer.csproj b/samples/Streaming/Streaming.Consumer/Streaming.Consumer.csproj deleted file mode 100644 index cf56ebc3e..000000000 --- a/samples/Streaming/Streaming.Consumer/Streaming.Consumer.csproj +++ /dev/null @@ -1,103 +0,0 @@ - - - - - Debug - AnyCPU - {AD94264D-511E-46DA-887F-59CEEFE1DBDD} - Exe - Properties - Streaming.Consumer - Streaming.Consumer - v4.5.1 - 512 - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - - {7aca8be7-b14d-40db-b413-cf8881630b5d} - Streaming.Messages - - - - - \ No newline at end of file diff --git a/samples/Streaming/Streaming.Messages/Properties/AssemblyInfo.cs b/samples/Streaming/Streaming.Messages/Properties/AssemblyInfo.cs deleted file mode 100644 index 00f7d5ad7..000000000 --- a/samples/Streaming/Streaming.Messages/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("Streaming.Messages")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("Streaming.Messages")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2015")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("39147081-2f79-4f8d-bfa2-00db5929e62f")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/Streaming/Streaming.Messages/StartStreamMessage.cs b/samples/Streaming/Streaming.Messages/StartStreamMessage.cs deleted file mode 100644 index 94d0beec3..000000000 --- a/samples/Streaming/Streaming.Messages/StartStreamMessage.cs +++ /dev/null @@ -1,15 +0,0 @@ -using System; -using System.Security.Cryptography.X509Certificates; -using ServiceConnect.Interfaces; - -namespace Streaming.Messages -{ - public class StartStreamMessage : Message - { - public StartStreamMessage(Guid correlationId) : base(correlationId) - { - - } - public string Path { get; set; } - } -} diff --git a/samples/Streaming/Streaming.Messages/Streaming.Messages.csproj b/samples/Streaming/Streaming.Messages/Streaming.Messages.csproj deleted file mode 100644 index e30518165..000000000 --- a/samples/Streaming/Streaming.Messages/Streaming.Messages.csproj +++ /dev/null @@ -1,57 +0,0 @@ - - - - - Debug - AnyCPU - {7ACA8BE7-B14D-40DB-B413-CF8881630B5D} - Library - Properties - Streaming.Messages - Streaming.Messages - v4.5.1 - 512 - - - - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/samples/Streaming/Streaming.sln b/samples/Streaming/Streaming.sln deleted file mode 100644 index 429ecb8ed..000000000 --- a/samples/Streaming/Streaming.sln +++ /dev/null @@ -1,34 +0,0 @@ - -Microsoft Visual Studio Solution File, Format Version 12.00 -# Visual Studio 2013 -VisualStudioVersion = 12.0.30723.0 -MinimumVisualStudioVersion = 10.0.40219.1 -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Streaming", "Streaming\Streaming.csproj", "{0354ED0C-9FE8-4DB2-A91D-111797659663}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Streaming.Consumer", "Streaming.Consumer\Streaming.Consumer.csproj", "{AD94264D-511E-46DA-887F-59CEEFE1DBDD}" -EndProject -Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Streaming.Messages", "Streaming.Messages\Streaming.Messages.csproj", "{7ACA8BE7-B14D-40DB-B413-CF8881630B5D}" -EndProject -Global - GlobalSection(SolutionConfigurationPlatforms) = preSolution - Debug|Any CPU = Debug|Any CPU - Release|Any CPU = Release|Any CPU - EndGlobalSection - GlobalSection(ProjectConfigurationPlatforms) = postSolution - {0354ED0C-9FE8-4DB2-A91D-111797659663}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {0354ED0C-9FE8-4DB2-A91D-111797659663}.Debug|Any CPU.Build.0 = Debug|Any CPU - {0354ED0C-9FE8-4DB2-A91D-111797659663}.Release|Any CPU.ActiveCfg = Release|Any CPU - {0354ED0C-9FE8-4DB2-A91D-111797659663}.Release|Any CPU.Build.0 = Release|Any CPU - {AD94264D-511E-46DA-887F-59CEEFE1DBDD}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {AD94264D-511E-46DA-887F-59CEEFE1DBDD}.Debug|Any CPU.Build.0 = Debug|Any CPU - {AD94264D-511E-46DA-887F-59CEEFE1DBDD}.Release|Any CPU.ActiveCfg = Release|Any CPU - {AD94264D-511E-46DA-887F-59CEEFE1DBDD}.Release|Any CPU.Build.0 = Release|Any CPU - {7ACA8BE7-B14D-40DB-B413-CF8881630B5D}.Debug|Any CPU.ActiveCfg = Debug|Any CPU - {7ACA8BE7-B14D-40DB-B413-CF8881630B5D}.Debug|Any CPU.Build.0 = Debug|Any CPU - {7ACA8BE7-B14D-40DB-B413-CF8881630B5D}.Release|Any CPU.ActiveCfg = Release|Any CPU - {7ACA8BE7-B14D-40DB-B413-CF8881630B5D}.Release|Any CPU.Build.0 = Release|Any CPU - EndGlobalSection - GlobalSection(SolutionProperties) = preSolution - HideSolutionNode = FALSE - EndGlobalSection -EndGlobal diff --git a/samples/Streaming/Streaming/App.config b/samples/Streaming/Streaming/App.config deleted file mode 100644 index d0feca6f7..000000000 --- a/samples/Streaming/Streaming/App.config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - diff --git a/samples/Streaming/Streaming/Program.cs b/samples/Streaming/Streaming/Program.cs deleted file mode 100644 index e5ba550b9..000000000 --- a/samples/Streaming/Streaming/Program.cs +++ /dev/null @@ -1,46 +0,0 @@ -using System; -using System.Collections.Generic; -using System.IO; -using ServiceConnect; -using Streaming.Messages; - -namespace Streaming -{ - class Program - { - static void Main(string[] args) - { - Console.WriteLine("*********** Producer 1 ***********"); - var bus = Bus.Initialize(x => - { - x.SetQueueName("StreamPublisher"); - x.PurgeQueuesOnStart(); - x.SetHost("localhost"); - }); - - Console.WriteLine("Press enter"); - Console.ReadLine(); - - FileStream f = new FileStream(@"logo.bmp", FileMode.Open); - - var stream = bus.CreateStream("StreamConsumer", new StartStreamMessage(Guid.NewGuid()) - { - Path = @"logoCopy.bmp" - }); - - byte[] buffer = new byte[1000]; - int read; - while ((read = f.Read(buffer, 0, buffer.Length)) > 0) - { - Console.WriteLine("Writing Bytes"); - stream.Write(buffer, 0, read); - } - - Console.WriteLine("Stopping sending"); - stream.Close(); - - Console.WriteLine("Done"); - Console.ReadLine(); - } - } -} diff --git a/samples/Streaming/Streaming/Properties/AssemblyInfo.cs b/samples/Streaming/Streaming/Properties/AssemblyInfo.cs deleted file mode 100644 index e08c2a7d9..000000000 --- a/samples/Streaming/Streaming/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("Streaming")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Microsoft")] -[assembly: AssemblyProduct("Streaming")] -[assembly: AssemblyCopyright("Copyright © Microsoft 2015")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("be6c396a-ae41-4e23-ada2-d7c73428dc9e")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/samples/Streaming/Streaming/Streaming.csproj b/samples/Streaming/Streaming/Streaming.csproj deleted file mode 100644 index 632bf4e90..000000000 --- a/samples/Streaming/Streaming/Streaming.csproj +++ /dev/null @@ -1,107 +0,0 @@ - - - - - Debug - AnyCPU - {0354ED0C-9FE8-4DB2-A91D-111797659663} - Exe - Properties - Streaming - Streaming - v4.5.1 - 512 - - - - AnyCPU - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - AnyCPU - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Common.Logging.Core.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\Newtonsoft.Json.dll - - - False - ..\..\..\src\ServiceConnect\bin\Debug\net451\RabbitMQ.Client.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Client.RabbitMQ.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Container.Default.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Core.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Interfaces.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.InMemory.dll - - - ..\..\..\src\ServiceConnect\bin\Debug\net451\ServiceConnect.Persistance.SqlServer.dll - - - - - - - - - - - - - - - - - - - {7aca8be7-b14d-40db-b413-cf8881630b5d} - Streaming.Messages - - - - - Always - - - - - \ No newline at end of file diff --git a/samples/Streaming/Streaming/logo.bmp b/samples/Streaming/Streaming/logo.bmp deleted file mode 100644 index a00e321f9..000000000 Binary files a/samples/Streaming/Streaming/logo.bmp and /dev/null differ diff --git a/src/.nuget/NuGet.Config b/src/.nuget/NuGet.Config deleted file mode 100644 index 67f8ea046..000000000 --- a/src/.nuget/NuGet.Config +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - \ No newline at end of file diff --git a/src/.nuget/NuGet.exe b/src/.nuget/NuGet.exe deleted file mode 100644 index 9cba6edbf..000000000 Binary files a/src/.nuget/NuGet.exe and /dev/null differ diff --git a/src/.nuget/NuGet.targets b/src/.nuget/NuGet.targets deleted file mode 100644 index 5668f9e21..000000000 --- a/src/.nuget/NuGet.targets +++ /dev/null @@ -1,151 +0,0 @@ - - - - $(MSBuildProjectDirectory)\..\ - - - false - - - false - - - true - - - false - - - - - - - - - - - - $([System.IO.Path]::Combine($(SolutionDir), ".nuget")) - - - - - $(SolutionDir).nuget - - - - packages.$(MSBuildProjectName.Replace(' ', '_')).config - - - - - - $(PackagesProjectConfig) - - - - - packages.config - - - - - - - $(NuGetToolsPath)\NuGet.exe - @(PackageSource) - - "$(NuGetExePath)" - mono --runtime=v4.0.30319 $(NuGetExePath) - - $(TargetDir.Trim('\\')) - - -RequireConsent - -NonInteractive - - "$(SolutionDir) " - "$(SolutionDir)" - - - $(NuGetCommand) install "$(PackagesConfig)" -source "$(PackageSources)" $(NonInteractiveSwitch) $(RequireConsentSwitch) -solutionDir $(PaddedSolutionDir) - $(NuGetCommand) pack "$(ProjectPath)" -Properties "Configuration=$(Configuration);Platform=$(Platform)" $(NonInteractiveSwitch) -OutputDirectory "$(PackageOutputDir)" -symbols - - - - RestorePackages; - $(BuildDependsOn); - - - - - $(BuildDependsOn); - BuildPackage; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - diff --git a/src/Directory.Build.props b/src/Directory.Build.props new file mode 100644 index 000000000..c1bd71b25 --- /dev/null +++ b/src/Directory.Build.props @@ -0,0 +1,96 @@ + + + + net8.0;net10.0 + true + + true + + true + + + + + 7.0.0 + Jakub Pachansky, Tim Watson + ServiceConnect + ServiceConnect + Copyright 2026 ServiceConnect contributors + https://github.com/R-Suite/ServiceConnect-CSharp + MIT + https://github.com/R-Suite/ServiceConnect-CSharp.git + git + en-GB + false + README.md + + + + + true + true + true + snupkg + true + true + + + + + + + + + + 12.0 + + + 14.0 + + + + all + runtime; build; native; contentfiles; analyzers + + + all + runtime; build; native; contentfiles; analyzers + + + all + runtime; build; native; contentfiles; analyzers + + + + + + + all + runtime; build; native; contentfiles; analyzers + + + diff --git a/src/ServiceConnect.Client.RabbitMQ/Audit/MessageAuditPublisher.cs b/src/ServiceConnect.Client.RabbitMQ/Audit/MessageAuditPublisher.cs new file mode 100644 index 000000000..830e73ed5 --- /dev/null +++ b/src/ServiceConnect.Client.RabbitMQ/Audit/MessageAuditPublisher.cs @@ -0,0 +1,110 @@ +using System.Diagnostics; +using Microsoft.Extensions.Logging; +using Microsoft.Extensions.Logging.Abstractions; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Diagnostics; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; + +namespace ServiceConnect.Client.RabbitMQ; + +/// +/// Success-path policy for a RabbitMQ client. Publishes a copy of a successfully +/// processed message to the audit exchange when auditing is enabled. Skips byte-stream +/// messages to avoid auditing raw stream frames. +/// +internal sealed class MessageAuditPublisher( + IQueueConfiguration queueConfiguration, + ILogger? logger = null) +{ + private readonly IQueueConfiguration _queueConfiguration = queueConfiguration ?? throw new ArgumentNullException(nameof(queueConfiguration)); + private readonly ILogger _logger = logger ?? NullLogger.Instance; + + public async Task PublishAuditIfEnabledAsync( + IChannel channel, + BasicDeliverEventArgs args, + Dictionary headers, + CancellationToken cancellationToken = default) + { + cancellationToken.ThrowIfCancellationRequested(); + + if (!_queueConfiguration.AuditingEnabled) + { + return; + } + + string? messageType = null; + if (headers.TryGetValue(HeaderKeys.MessageType, out var raw)) + { + messageType = HeaderDecoder.Decode(raw); + } + + if (string.Equals(messageType, HeaderKeys.ByteStream, StringComparison.Ordinal)) + { + return; + } + + // Field-by-field copy via BasicPropertiesCopier rather than the BasicProperties + // copy-constructor: the ctor's "any malformed source field throws" risk would + // otherwise propagate out of PublishAuditIfEnabledAsync — caught upstream and + // acked silently — silently dropping audits whenever an inbound delivery had a + // quirky property. MessageRetryHandler avoids the ctor for the same reason. + var props = BasicPropertiesCopier.CreateCopy(args.BasicProperties, HeaderHelpers.ToNullableHeaders(headers)); + // Audit is best-effort: the message has already been processed successfully, so a + // failure to publish the audit copy must not propagate back into the consumer pipeline + // (which would nack-with-requeue and re-run the handler against an idempotent surface). + // A broker quota or partition affecting only the audit queue would otherwise fail every + // successfully-handled delivery. + try + { + // mandatory:true so unroutable audit messages (queue purged, exchange wrong, + // binding broken) raise PublishException instead of being silently dropped at + // the broker — otherwise the drop counter only fires on transport failures + // and topology problems are invisible. + await channel.BasicPublishAsync( + _queueConfiguration.AuditQueueName, + string.Empty, + mandatory: true, + props, + args.Body, + cancellationToken).ConfigureAwait(false); + } + catch (OperationCanceledException) + { + throw; + } + catch (global::RabbitMQ.Client.Exceptions.PublishException pex) + { + // mandatory:true unroutable returns surface as PublishException — these mean the + // audit topology is broken (binding removed, queue purged), NOT a transient + // transport failure. Tag distinctly so operators can alert on misconfigured-audit + // separately from broker-down events; otherwise a stale audit binding produces + // the same drop-counter shape as a real outage and dashboards lose signal. + _logger.LogWarning(pex, + "Audit publish unroutable for message {MessageType} — audit topology likely misconfigured; original delivery is acked normally.", + messageType ?? ""); + ServiceConnectMeter.AddAuditDrop(new TagList + { + { "messaging.system", "rabbitmq" }, + { "error.type", "unroutable" }, + }); + } + catch (Exception ex) + { + _logger.LogWarning(ex, + "Audit publish failed for message {MessageType}; original delivery is acked normally.", + messageType ?? ""); + // Audit drops are observable through the messaging.serviceconnect.audit.drops + // counter so operators can alert on broker-side audit failures without parsing + // logs. PublishException is handled above with a distinct `error.type=unroutable` + // tag; the remaining catch covers transport / IO failures. The audit queue is a + // single global destination per the spec — no messaging.destination.name tag. + ServiceConnectMeter.AddAuditDrop(new TagList + { + { "messaging.system", "rabbitmq" }, + { "error.type", ExceptionTypeMapper.Map(ex) }, + }); + } + } +} diff --git a/src/ServiceConnect.Client.RabbitMQ/Client.cs b/src/ServiceConnect.Client.RabbitMQ/Client.cs deleted file mode 100644 index 90c7a8041..000000000 --- a/src/ServiceConnect.Client.RabbitMQ/Client.cs +++ /dev/null @@ -1,324 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using Newtonsoft.Json; -using RabbitMQ.Client; -using RabbitMQ.Client.Events; -using ServiceConnect.Interfaces; -using System; -using System.Collections.Generic; -using System.Text; -using System.Threading.Tasks; -using ConsumerEventHandler = ServiceConnect.Interfaces.ConsumerEventHandler; - -namespace ServiceConnect.Client.RabbitMQ -{ - public class Client - { - private IModel _model; - private readonly IServiceConnectConnection _connection; - private ConsumerEventHandler _consumerEventHandler; - private readonly ITransportSettings _transportSettings; - private readonly ILogger _logger; - - private bool _autoDelete; - private string _queueName; - private readonly int _maxRetries; - private readonly ushort _retryCount; - private readonly bool _errorsDisabled; - private readonly ushort _prefetchCount; - private readonly bool _disablePrefetch; - private readonly ushort _retryTimeInSeconds; - private readonly IDictionary _queueArguments; - private string _retryQueueName; - private string _errorExchange; - private string _auditExchange; - - private int _messagesBeingProcessed = 0; - private AsyncEventingBasicConsumer _consumer; - - public Client(IServiceConnectConnection connection, ITransportSettings transportSettings, ILogger logger) - { - _connection = connection; - _transportSettings = transportSettings; - _logger = logger; - - _maxRetries = transportSettings.MaxRetries; - _autoDelete = transportSettings.ClientSettings.ContainsKey("AutoDelete") && (bool)transportSettings.ClientSettings["AutoDelete"]; - _errorsDisabled = transportSettings.DisableErrors; - _prefetchCount = transportSettings.ClientSettings.ContainsKey("PrefetchCount") ? Convert.ToUInt16((int)transportSettings.ClientSettings["PrefetchCount"]) : Convert.ToUInt16(20); - _disablePrefetch = transportSettings.ClientSettings.ContainsKey("DisablePrefetch") && (bool)transportSettings.ClientSettings["DisablePrefetch"]; - _retryCount = transportSettings.ClientSettings.ContainsKey("RetryCount") ? Convert.ToUInt16((int)transportSettings.ClientSettings["RetryCount"]) : Convert.ToUInt16(60); - _retryTimeInSeconds = transportSettings.ClientSettings.ContainsKey("RetrySeconds") ? Convert.ToUInt16((int)transportSettings.ClientSettings["RetrySeconds"]) : Convert.ToUInt16(10); - _queueArguments = _transportSettings.ClientSettings.ContainsKey("Arguments") ? (IDictionary)_transportSettings.ClientSettings["Arguments"] : new Dictionary(); - } - - /// - /// Event fired on HandleBasicDeliver - /// - /// - /// - public async Task Event(object consumer, BasicDeliverEventArgs args) - { - try - { - _messagesBeingProcessed++; - - if (!args.BasicProperties.Headers.ContainsKey("TypeName") && - !args.BasicProperties.Headers.ContainsKey("FullTypeName")) - { - const string errMsg = "Error processing message, Message headers must contain type name."; - _logger.Error(errMsg); - } - - if (args.Redelivered) - { - SetHeader(args.BasicProperties.Headers, "Redelivered", true); - } - - await ProcessMessage(args); - } - catch (Exception ex) - { - _logger.Error("Error processing message", ex); - throw; - } - finally - { - try - { - _model.BasicAck(args.DeliveryTag, false); - } - catch (Exception ex) - { - _logger.Warn("Error acking the message", ex); - } - - _messagesBeingProcessed--; - } - } - - private async Task ProcessMessage(BasicDeliverEventArgs args) - { - ConsumeEventResult result; - IDictionary headers = args.BasicProperties.Headers; - - try - { - SetHeader(args.BasicProperties.Headers, "TimeReceived", DateTime.UtcNow.ToString("O")); - SetHeader(args.BasicProperties.Headers, "DestinationMachine", Environment.MachineName); - SetHeader(args.BasicProperties.Headers, "DestinationAddress", _transportSettings.QueueName); - - string typeName = Encoding.UTF8.GetString((byte[])(headers.ContainsKey("FullTypeName") ? headers["FullTypeName"] : headers["TypeName"])); - - result = await _consumerEventHandler(args.Body.ToArray(), typeName, headers); - - SetHeader(args.BasicProperties.Headers, "TimeProcessed", DateTime.UtcNow.ToString("O")); - } - catch (Exception ex) - { - result = new ConsumeEventResult - { - Exception = ex, - Success = false - }; - } - - if (!result.Success) - { - int retryCount = 0; - - if (args.BasicProperties.Headers.ContainsKey("RetryCount")) - { - retryCount = (int)args.BasicProperties.Headers["RetryCount"]; - } - - if (retryCount < _maxRetries) - { - retryCount++; - SetHeader(args.BasicProperties.Headers, "RetryCount", retryCount); - - _model.BasicPublish(string.Empty, _retryQueueName, args.BasicProperties, args.Body); - } - else - { - if (result.Exception != null) - { - string jsonException = string.Empty; - try - { - jsonException = JsonConvert.SerializeObject(result.Exception); - } - catch (Exception ex) - { - _logger.Warn("Error serializing exception", ex); - } - - SetHeader(args.BasicProperties.Headers, "Exception", JsonConvert.SerializeObject(new - { - TimeStamp = DateTime.Now, - ExceptionType = result.Exception.GetType().FullName, - Message = GetErrorMessage(result.Exception), - result.Exception.StackTrace, - result.Exception.Source, - Exception = jsonException - })); - } - - _logger.Error(string.Format("Max number of retries exceeded. MessageId: {0}", args.BasicProperties.MessageId)); - _model.BasicPublish(_errorExchange, string.Empty, args.BasicProperties, args.Body); - } - } - else if (!_errorsDisabled) - { - string messageType = null; - if (headers.ContainsKey("MessageType")) - { - messageType = Encoding.UTF8.GetString((byte[])headers["MessageType"]); - } - - if (_transportSettings.AuditingEnabled && messageType != "ByteStream") - { - _model.BasicPublish(_auditExchange, string.Empty, args.BasicProperties, args.Body); - } - } - } - - public void StartConsuming(ConsumerEventHandler messageReceived, string queueName, bool? exclusive = null, bool? autoDelete = null) - { - _consumerEventHandler = messageReceived; - _queueName = queueName; - _retryQueueName = queueName + ".Retries"; - _errorExchange = _transportSettings.ErrorQueueName; - _auditExchange = _transportSettings.AuditQueueName; - - if (autoDelete.HasValue) - { - _autoDelete = autoDelete.Value; - } - - Retry.Do(CreateConsumer, ex => - { - _logger.Error(string.Format("Error creating model - queueName: {0}", queueName), ex); - }, new TimeSpan(0, 0, 0, _retryTimeInSeconds), _retryCount); - } - - private void CreateConsumer() - { - _model = _connection.CreateModel(); - - if (!_disablePrefetch) - { - _model.BasicQos(0, _prefetchCount, false); - } - - _consumer = new AsyncEventingBasicConsumer(_model); - _consumer.Received += Event; - - _ = _model.BasicConsume(_queueName, false, _consumer); - - _logger.Debug("Started consuming"); - } - - public void ConsumeMessageType(string messageTypeName) - { - // messageTypeName is the name of the exchange - _model.QueueBind(_queueName, messageTypeName, string.Empty, _queueArguments); - } - - public string Type => "RabbitMQ"; - - private string GetErrorMessage(Exception exception) - { - StringBuilder sbMessage = new(); - _ = sbMessage.Append(exception.Message + Environment.NewLine); - Exception ie = exception.InnerException; - while (ie != null) - { - _ = sbMessage.Append(ie.Message + Environment.NewLine); - ie = ie.InnerException; - } - - return sbMessage.ToString(); - } - - private static void SetHeader(IDictionary headers, string key, T value) - { - if (Equals(value, default(T))) - { - _ = headers.Remove(key); - } - else - { - headers[key] = value; - } - } - - public void StopConsuming() - { - Dispose(); - } - - public void Dispose() - { - // Stop consuming - if (_consumer != null) - { - foreach (string tag in _consumer.ConsumerTags) - { - try - { - _model.BasicCancel(tag); - } - catch (Exception ex) - { - _logger.Error("Error cancelling consumer", ex); - } - } - } - - if (_autoDelete && _model != null) - { - _logger.Debug("Deleting retry queue"); - _ = _model.QueueDelete(_queueName + ".Retries"); - } - - // Dispose model - if (_model != null) - { - try - { - - _logger.Debug("Disposing Model"); - _model.Dispose(); - _model = null; - } - catch (Exception ex) - { - _logger.Error("Error disposing consumer", ex); - } - } - - // Wait until all messages have been processed. - int timeout = 0; - while (_messagesBeingProcessed > 0 && timeout < 6000) - { - System.Threading.Thread.Sleep(100); - timeout++; - } - } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Client.RabbitMQ/Configuration/BasicPropertiesCopier.cs b/src/ServiceConnect.Client.RabbitMQ/Configuration/BasicPropertiesCopier.cs new file mode 100644 index 000000000..b45107283 --- /dev/null +++ b/src/ServiceConnect.Client.RabbitMQ/Configuration/BasicPropertiesCopier.cs @@ -0,0 +1,52 @@ +using RabbitMQ.Client; + +namespace ServiceConnect.Client.RabbitMQ; + +internal static class BasicPropertiesCopier +{ + /// + /// Returns a new populated by reading each AMQP + /// BASIC field from individually. The + /// copy-constructor performs internal validation that throws on a single malformed + /// source field — the consumer paths must not be torn down by a quirky inbound + /// delivery, so retry / error / audit publishes all use this helper instead of + /// new BasicProperties(args.BasicProperties). + /// + /// + /// + /// Adding a field to RabbitMQ.Client's surface + /// without updating this helper is a silent regression — the new field would be + /// dropped from every retry/error/audit publish. BasicPropertiesCopierTests + /// guards against that. + /// + /// + /// Identity / provenance fields are deliberately NOT copied: + /// UserId, AppId, and ClusterId describe the original publishing + /// connection. On a broker with validated_user_id enabled (a documented RabbitMQ + /// feature), republishing with a non-matching UserId is rejected with + /// 406 PRECONDITION_FAILED, which closes the publish channel and flips the + /// consumer's broker-cancel flag — a single malicious inbound message could otherwise + /// disable consumption on the pod. Even without that broker policy, asserting an + /// identity the consumer connection does not hold misleads downstream audit trails. + /// Leaving these fields null on retry/audit/error republishes is the safe behaviour. + /// + /// + public static BasicProperties CreateCopy(IReadOnlyBasicProperties source, IDictionary? headers) + { + return new BasicProperties + { + ContentType = source.ContentType, + ContentEncoding = source.ContentEncoding, + DeliveryMode = source.DeliveryMode, + Priority = source.Priority, + CorrelationId = source.CorrelationId, + ReplyTo = source.ReplyTo, + Expiration = source.Expiration, + MessageId = source.MessageId, + Timestamp = source.Timestamp, + Type = source.Type, + // UserId / AppId / ClusterId intentionally omitted — see . + Headers = headers, + }; + } +} diff --git a/src/ServiceConnect.Client.RabbitMQ/Configuration/HeaderHelpers.cs b/src/ServiceConnect.Client.RabbitMQ/Configuration/HeaderHelpers.cs new file mode 100644 index 000000000..5adbaf460 --- /dev/null +++ b/src/ServiceConnect.Client.RabbitMQ/Configuration/HeaderHelpers.cs @@ -0,0 +1,71 @@ +using System.Runtime.CompilerServices; +using System.Text; + +namespace ServiceConnect.Client.RabbitMQ; + +internal static class HeaderHelpers +{ + [MethodImpl(MethodImplOptions.AggressiveInlining)] + public static void SetHeader(IDictionary headers, string key, T value) + { + if (value is null) + { + _ = headers.Remove(key); + } + else + { + headers[key] = value; + } + } + + // foreach into a pre-sized dictionary avoids the LINQ ToDictionary allocation overhead. + // The CLR-side value-type can be either string (post-Group-F eager-decode for inbound + // headers) or byte[] (pre-eager-decode, or non-AMQP code paths). RabbitMQ.Client's wire + // format encodes both as longstr (AMQP S field), so the over-the-wire representation is + // identical regardless of which CLR type the in-memory dict holds. + public static Dictionary ToNullableHeaders(IDictionary headers) + { + var result = new Dictionary(headers.Count, StringComparer.Ordinal); + foreach (var kvp in headers) + { + result[kvp.Key] = kvp.Value; + } + + return result; + } + + // Keep the error-queue header bounded in both breadth and depth so that arbitrary + // inner-exception chains (including ones that might reveal connection strings or + // file paths) cannot bloat the message or leak beyond a controlled surface. + private const int MaxErrorMessageInnerDepth = 3; + private const int MaxErrorMessageLength = 4096; + private const string TruncationMarker = "...[truncated]"; + + public static string GetErrorMessage(Exception exception) + { + var sb = new StringBuilder(); + sb.AppendLine(exception.Message); + var ie = exception.InnerException; + int depth = 0; + while (ie != null && depth < MaxErrorMessageInnerDepth) + { + sb.AppendLine(ie.Message); + ie = ie.InnerException; + depth++; + } + // Append a marker when the chain was deeper than we recorded so operators + // know to check logs for the full inner-exception stack. + if (ie != null) + { + sb.Append(TruncationMarker); + } + + var s = sb.ToString(); + if (s.Length <= MaxErrorMessageLength) + { + return s; + } + + return string.Concat(s.AsSpan(0, MaxErrorMessageLength - TruncationMarker.Length), TruncationMarker); + } +} diff --git a/src/ServiceConnect.Client.RabbitMQ/Configuration/RabbitMQExtensions.cs b/src/ServiceConnect.Client.RabbitMQ/Configuration/RabbitMQExtensions.cs new file mode 100644 index 000000000..1bf72f1c5 --- /dev/null +++ b/src/ServiceConnect.Client.RabbitMQ/Configuration/RabbitMQExtensions.cs @@ -0,0 +1,105 @@ +using Microsoft.Extensions.DependencyInjection.Extensions; +using ServiceConnect.Client.RabbitMQ.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; + +namespace ServiceConnect.Client.RabbitMQ; + +/// +/// Extension methods for registering RabbitMQ transport services with ServiceConnect. +/// +public static class RabbitMQExtensions +{ + /// + /// Configures ServiceConnect to use the RabbitMQ transport implementation. + /// + /// The builder being configured. + /// An optional callback used to customize the transport configuration. + /// The same instance for chaining. + public static ServiceConnectBuilder UseRabbitMQ( + this ServiceConnectBuilder builder, + Action? configure = null) + { + if (configure != null) + { + builder.ConfigureTransport(configure); + } + + builder.AddRegistration(services => + { + services.TryAddSingleton(); + services.TryAddSingleton(); + }); + + return builder; + } + + /// + /// Configures ServiceConnect to use the RabbitMQ transport implementation with strongly-typed options. + /// The lambda receives a fresh ; + /// non-null properties are written into + /// using the keys from . Settings left null are not written, + /// leaving any prior SetClientSetting values or runtime defaults in place. + /// + /// The builder being configured. + /// An optional callback used to set strongly-typed RabbitMQ options. + /// The same instance for chaining. + public static ServiceConnectBuilder UseRabbitMQ( + this ServiceConnectBuilder builder, + Action? configure) + { + ArgumentNullException.ThrowIfNull(builder); + + if (configure is not null) + { + var options = new RabbitMqOptions(); + configure(options); + + var validationErrors = options.Validate(); + if (validationErrors.Count > 0) + { + throw new ArgumentException( + "RabbitMqOptions contains invalid values: " + string.Join("; ", validationErrors), + nameof(configure)); + } + + builder.ConfigureTransport(transport => ApplyToClientSettings(transport, options)); + } + + builder.AddRegistration(services => + { + services.TryAddSingleton(); + services.TryAddSingleton(); + }); + + return builder; + } + + // Maps non-null RabbitMqOptions properties to ClientSettings entries using the + // RabbitMQSettingKeys constants. Null properties are intentionally skipped so callers + // can partially override settings without inadvertently clearing unrelated values. + private static void ApplyToClientSettings(ITransportConfiguration transport, RabbitMqOptions options) + { + if (options.Port.HasValue) { transport.SetClientSetting(RabbitMQSettingKeys.Port, options.Port.Value); } + if (options.Durable.HasValue) { transport.SetClientSetting(RabbitMQSettingKeys.Durable, options.Durable.Value); } + if (options.Exclusive.HasValue) { transport.SetClientSetting(RabbitMQSettingKeys.Exclusive, options.Exclusive.Value); } + if (options.AutoDelete.HasValue) { transport.SetClientSetting(RabbitMQSettingKeys.AutoDelete, options.AutoDelete.Value); } + if (options.Arguments is not null) { transport.SetClientSetting(RabbitMQSettingKeys.Arguments, options.Arguments); } + if (options.RetryQueueArguments is not null) { transport.SetClientSetting(RabbitMQSettingKeys.RetryQueueArguments, options.RetryQueueArguments); } + if (options.UtilityQueueArguments is not null) { transport.SetClientSetting(RabbitMQSettingKeys.UtilityQueueArguments, options.UtilityQueueArguments); } + if (options.PrefetchCount.HasValue) { transport.SetClientSetting(RabbitMQSettingKeys.PrefetchCount, options.PrefetchCount.Value); } + if (options.DisablePrefetch.HasValue) { transport.SetClientSetting(RabbitMQSettingKeys.DisablePrefetch, options.DisablePrefetch.Value); } + if (options.MessageSize.HasValue) { transport.SetClientSetting(RabbitMQSettingKeys.MessageSize, options.MessageSize.Value); } + if (options.PublisherAcknowledgements.HasValue) { transport.SetClientSetting(RabbitMQSettingKeys.PublisherAcknowledgements, options.PublisherAcknowledgements.Value); } + if (options.RetryCount.HasValue) { transport.SetClientSetting(RabbitMQSettingKeys.RetryCount, options.RetryCount.Value); } + if (options.RetrySeconds.HasValue) { transport.SetClientSetting(RabbitMQSettingKeys.RetrySeconds, options.RetrySeconds.Value); } + if (options.HeartbeatEnabled.HasValue) { transport.SetClientSetting(RabbitMQSettingKeys.HeartbeatEnabled, options.HeartbeatEnabled.Value); } + if (options.HeartbeatTime.HasValue) { transport.SetClientSetting(RabbitMQSettingKeys.HeartbeatTime, options.HeartbeatTime.Value); } + if (options.PublishTimeout.HasValue) { transport.SetClientSetting(RabbitMQSettingKeys.PublishTimeout, options.PublishTimeout.Value); } + if (options.MaxPublishWaitTime.HasValue) { transport.SetClientSetting(RabbitMQSettingKeys.MaxPublishWaitTime, options.MaxPublishWaitTime.Value); } + if (options.MaxOutstandingPublishConfirms.HasValue) { transport.SetClientSetting(RabbitMQSettingKeys.MaxOutstandingPublishConfirms, options.MaxOutstandingPublishConfirms.Value); } + if (options.NetworkRecoveryInterval.HasValue) { transport.SetClientSetting(RabbitMQSettingKeys.NetworkRecoveryInterval, options.NetworkRecoveryInterval.Value); } + if (options.MaxHeaderCount.HasValue) { transport.SetClientSetting(RabbitMQSettingKeys.MaxHeaderCount, options.MaxHeaderCount.Value); } + if (options.MaxHeaderValueBytes.HasValue) { transport.SetClientSetting(RabbitMQSettingKeys.MaxHeaderValueBytes, options.MaxHeaderValueBytes.Value); } + } +} diff --git a/src/ServiceConnect.Client.RabbitMQ/Configuration/RabbitMQSettingKeys.cs b/src/ServiceConnect.Client.RabbitMQ/Configuration/RabbitMQSettingKeys.cs new file mode 100644 index 000000000..aa2af4f84 --- /dev/null +++ b/src/ServiceConnect.Client.RabbitMQ/Configuration/RabbitMQSettingKeys.cs @@ -0,0 +1,110 @@ +namespace ServiceConnect.Client.RabbitMQ; + +/// +/// Defines RabbitMQ-specific keys used in ITransportConfiguration.ClientSettings. +/// +public static class RabbitMQSettingKeys +{ + /// RabbitMQ TCP port. + public const string Port = "Port"; + + /// Whether declared queues should be durable. + public const string Durable = "Durable"; + + /// Whether declared queues should be exclusive. + public const string Exclusive = "Exclusive"; + + /// Whether declared queues should be auto-deleted. + public const string AutoDelete = "AutoDelete"; + + /// Additional arguments for the primary queue declaration. + public const string Arguments = "Arguments"; + + /// Additional arguments for retry queue declarations. + public const string RetryQueueArguments = "RetryQueueArguments"; + + /// Additional arguments for utility queue declarations such as audit and error queues. + public const string UtilityQueueArguments = "UtilityQueueArguments"; + + /// Requested prefetch count for consumers. + public const string PrefetchCount = "PrefetchCount"; + + /// Whether consumer prefetch configuration should be disabled. + public const string DisablePrefetch = "DisablePrefetch"; + /// Maximum message body size, in bytes. + public const string MessageSize = "MessageSize"; + + /// Whether publisher acknowledgements are enabled for outbound publishes. + public const string PublisherAcknowledgements = "PublisherAcknowledgements"; + /// Publish-retry attempt count. + public const string RetryCount = "RetryCount"; + /// + /// Delay between publish retries, in SECONDS. + /// Distinct from , + /// which controls the dead-letter message-level retry delay in MILLISECONDS. + /// + public const string RetrySeconds = "RetrySeconds"; + + /// + /// Whether AMQP heartbeats are enabled for the connection. Defaults to . + /// + /// Warning — disabling AMQP heartbeats removes broker-side dead-peer detection. A crashed + /// or firewall-isolated client is then only detected via TCP keepalive (Linux default ~2 hours). + /// The broker holds channel state for stale connections for hours; the client never observes + /// ConnectionShutdownAsync because nothing probes the link. Production deployments should + /// leave this and tune instead. + /// + /// + public const string HeartbeatEnabled = "HeartbeatEnabled"; + /// Heartbeat interval, in seconds. + public const string HeartbeatTime = "HeartbeatTime"; + + /// + /// Maximum time to wait for a broker acknowledgement when publishing under publisher confirms. + /// Accepts a ; defaults to 30 seconds. + /// + public const string PublishTimeout = "PublishTimeout"; + + /// + /// Maximum outstanding publisher-confirms per producer channel before publishes back-pressure. + /// Without this cap, a stalled broker can let the RabbitMQ.Client tracker grow unboundedly. + /// Tunable via SetClientSetting("MaxOutstandingPublishConfirms", N); defaults to 256. + /// + public const string MaxOutstandingPublishConfirms = nameof(MaxOutstandingPublishConfirms); + + /// + /// Interval RabbitMQ.Client waits between automatic-recovery attempts after a connection + /// drop. Accepts a ; when unset, RabbitMQ.Client's own default + /// applies (5 seconds at the time of writing). Tune longer to reduce log/network thrash + /// during prolonged broker outages. + /// + public const string NetworkRecoveryInterval = nameof(NetworkRecoveryInterval); + + /// + /// Maximum number of headers allowed on an inbound message before the consumer rejects + /// the delivery (NACK'd to retry / dead-letter). Accepts a positive ; + /// defaults to 64 when unset. Raise for tracing-heavy producers that legitimately stamp + /// wide header sets (W3C baggage, tenant headers); lower to tighten resource-exhaustion + /// defence on hostile inputs. + /// + public const string MaxHeaderCount = nameof(MaxHeaderCount); + + /// + /// Maximum bytes allowed per individual header value on an inbound message before the + /// consumer rejects the delivery (NACK'd to retry / dead-letter). Accepts a positive + /// ; defaults to 8192 (8 KB) when unset. Raise for deployments that + /// stamp large correlation / tracing values; lower to tighten resource-exhaustion + /// defence on hostile inputs. + /// + public const string MaxHeaderValueBytes = nameof(MaxHeaderValueBytes); + + /// + /// Wall-clock cap on the publisher's retry loop in Producer.ExecuteRetryingPublishAsync. + /// Accepts a ; defaults to 120 seconds when unset. + /// Set to to disable the cap + /// and rely solely on × . + /// Distinct from , which bounds a single confirm-ack + /// wait inside one attempt; this cap bounds the total retry budget across attempts. + /// + public const string MaxPublishWaitTime = nameof(MaxPublishWaitTime); +} diff --git a/src/ServiceConnect.Client.RabbitMQ/Configuration/RabbitMqOptions.cs b/src/ServiceConnect.Client.RabbitMQ/Configuration/RabbitMqOptions.cs new file mode 100644 index 000000000..acef2261d --- /dev/null +++ b/src/ServiceConnect.Client.RabbitMQ/Configuration/RabbitMqOptions.cs @@ -0,0 +1,165 @@ +namespace ServiceConnect.Client.RabbitMQ.Configuration; + +/// +/// Strongly-typed RabbitMQ transport options. Use via the +/// UseRabbitMQ(opts => ...) extension overload — set only the +/// properties you want; the lambda stuffs non-null values into +/// ITransportConfiguration.ClientSettings using the keys from +/// . Properties mirror 1:1. +/// +/// +/// This is the typed user-facing surface; internally the consumer host and producer +/// still read from the ClientSettings dictionary. A future release may switch +/// internals to IOptions{RabbitMqOptions}. +/// +public sealed record class RabbitMqOptions +{ + /// RabbitMQ TCP port. Defaults to 5672 for plain AMQP, 5671 for AMQPS. + public int? Port { get; set; } + + /// Whether declared queues should be durable. Default: true. + public bool? Durable { get; set; } + + /// Whether declared queues should be exclusive. Default: false. + public bool? Exclusive { get; set; } + + /// Whether declared queues should be auto-deleted. Default: false. + public bool? AutoDelete { get; set; } + + /// Additional x-arguments for the primary queue declaration. + public IDictionary? Arguments { get; set; } + + /// Additional x-arguments for retry-queue declarations. + public IDictionary? RetryQueueArguments { get; set; } + + /// Additional x-arguments for utility queues (audit, error). + public IDictionary? UtilityQueueArguments { get; set; } + + /// Requested consumer prefetch count. + public ushort? PrefetchCount { get; set; } + + /// Whether prefetch configuration should be disabled (consumer-side). + public bool? DisablePrefetch { get; set; } + + /// Maximum inbound message body size, in bytes. + public long? MessageSize { get; set; } + + /// Whether publisher confirms are enabled for outbound publishes. + public bool? PublisherAcknowledgements { get; set; } + + /// Publisher retry attempt count. + public int? RetryCount { get; set; } + + /// Delay between publish retries, in seconds (not milliseconds). + public ushort? RetrySeconds { get; set; } + + /// + /// Whether AMQP heartbeats are enabled. Default: true. Disabling removes broker-side + /// dead-peer detection — see for full + /// rationale. + /// + public bool? HeartbeatEnabled { get; set; } + + /// Heartbeat interval in seconds. + public ushort? HeartbeatTime { get; set; } + + /// Maximum time to wait for a broker ack under publisher confirms. Default: 30s. + public TimeSpan? PublishTimeout { get; set; } + + /// + /// Wall-clock cap on the publisher's retry loop. Default: 120s. Set to + /// to disable the cap. + /// Distinct from : that bounds a single confirm-ack + /// wait, this bounds the total wall-clock across retry attempts. + /// + public TimeSpan? MaxPublishWaitTime { get; set; } + + /// Maximum outstanding publisher confirms before back-pressure. Default: 256. + public int? MaxOutstandingPublishConfirms { get; set; } + + /// Interval between auto-recovery attempts after a connection drop. + public TimeSpan? NetworkRecoveryInterval { get; set; } + + /// + /// Maximum number of headers allowed on an inbound message. Defaults to 64. Inbound + /// messages with more headers are rejected (NACK'd to retry / dead-letter). Increase + /// if your producers legitimately stamp wider header sets (e.g. heavy distributed- + /// tracing baggage); decrease to tighten resource-exhaustion defence on hostile inputs. + /// + public int? MaxHeaderCount { get; set; } + + /// + /// Maximum bytes allowed per individual header value on an inbound message. + /// Defaults to 8192 (8 KB). Inbound messages with any header exceeding this size + /// are rejected (NACK'd to retry / dead-letter). Increase for deployments that + /// stamp large correlation / tracing values; decrease to tighten resource- + /// exhaustion defence on hostile inputs. + /// + public int? MaxHeaderValueBytes { get; set; } + + /// + /// Validates the option values that have explicit range constraints. Properties + /// typed as ? are non-negative by type and need no runtime check; + /// this method covers the ?, ?, and + /// ? properties whose acceptable range cannot be expressed in + /// the type system. + /// + /// + /// A list of human-readable error messages — one per invalid property. Returns an + /// empty list when all set values are within range. Properties left at + /// (i.e. not configured) are skipped; defaults are not asserted here. + /// + public IReadOnlyList Validate() + { + var errors = new List(); + + if (Port is { } port && (port < 1 || port > 65535)) + { + errors.Add($"Port must be between 1 and 65535 (was {port})."); + } + + if (RetryCount is { } retryCount && retryCount < 0) + { + errors.Add($"RetryCount must be non-negative (was {retryCount})."); + } + + if (MessageSize is { } messageSize && messageSize <= 0) + { + errors.Add($"MessageSize must be positive (was {messageSize})."); + } + + if (PublishTimeout is { } publishTimeout && publishTimeout <= TimeSpan.Zero) + { + errors.Add($"PublishTimeout must be positive (was {publishTimeout})."); + } + + if (MaxPublishWaitTime is { } maxPublishWaitTime + && maxPublishWaitTime <= TimeSpan.Zero + && maxPublishWaitTime != Timeout.InfiniteTimeSpan) + { + errors.Add($"MaxPublishWaitTime must be positive or Timeout.InfiniteTimeSpan (was {maxPublishWaitTime})."); + } + + if (MaxOutstandingPublishConfirms is { } maxOutstanding && maxOutstanding <= 0) + { + errors.Add($"MaxOutstandingPublishConfirms must be positive (was {maxOutstanding})."); + } + + if (NetworkRecoveryInterval is { } recoveryInterval && recoveryInterval <= TimeSpan.Zero) + { + errors.Add($"NetworkRecoveryInterval must be positive (was {recoveryInterval})."); + } + + if (MaxHeaderCount is { } maxHeaderCount && maxHeaderCount < 1) + { + errors.Add($"MaxHeaderCount must be positive (was {maxHeaderCount})."); + } + + if (MaxHeaderValueBytes is { } maxHeaderValueBytes && maxHeaderValueBytes < 1) + { + errors.Add($"MaxHeaderValueBytes must be positive (was {maxHeaderValueBytes})."); + } + + return errors; + } +} diff --git a/src/ServiceConnect.Client.RabbitMQ/Connection.cs b/src/ServiceConnect.Client.RabbitMQ/Connection.cs deleted file mode 100644 index 2658c775b..000000000 --- a/src/ServiceConnect.Client.RabbitMQ/Connection.cs +++ /dev/null @@ -1,115 +0,0 @@ -using System; -using ServiceConnect.Interfaces; -using RabbitMQ.Client; - -namespace ServiceConnect.Client.RabbitMQ -{ - public interface IServiceConnectConnection - { - void Connect(); - IModel CreateModel(); - void Dispose(); - bool IsConnected(); - } - - public class Connection : IDisposable, IServiceConnectConnection - { - private readonly ITransportSettings _transportSettings; - private IConnection _connection; - - private readonly string _queueName; - private readonly ILogger _logger; - private readonly bool _heartbeatEnabled; - private readonly TimeSpan _heartbeatTime; - private readonly string[] _hosts; - - public Connection(ITransportSettings transportSettings, string queueName, ILogger logger) - { - _hosts = transportSettings.Host.Split(','); - _transportSettings = transportSettings; - _queueName = queueName; - _logger = logger; - _transportSettings = transportSettings; - _heartbeatEnabled = !transportSettings.ClientSettings.ContainsKey("HeartbeatEnabled") || (bool)transportSettings.ClientSettings["HeartbeatEnabled"]; - _heartbeatTime = transportSettings.ClientSettings.ContainsKey("HeartbeatTime") ? new TimeSpan(0,0,(int)transportSettings.ClientSettings["HeartbeatTime"]) : new TimeSpan(0, 0, 120); - } - - public void Connect() - { - if (_connection == null) - CreateConnection(); - } - - private void CreateConnection() - { - _logger.Debug(string.Format("Creating connection to queue {0}", _queueName)); - - var connectionFactory = new ConnectionFactory - { - Port = AmqpTcpEndpoint.UseDefaultPort, - UseBackgroundThreadsForIO = true, - AutomaticRecoveryEnabled = true, - TopologyRecoveryEnabled = true, - DispatchConsumersAsync = true - }; - - if (_heartbeatEnabled) - { - connectionFactory.RequestedHeartbeat = _heartbeatTime; - } - - if (!string.IsNullOrEmpty(_transportSettings.Username)) - { - connectionFactory.UserName = _transportSettings.Username; - } - - if (!string.IsNullOrEmpty(_transportSettings.Password)) - { - connectionFactory.Password = _transportSettings.Password; - } - - if (_transportSettings.SslEnabled) - { - connectionFactory.Ssl = new SslOption - { - Version = _transportSettings.Version, - Enabled = true, - AcceptablePolicyErrors = _transportSettings.AcceptablePolicyErrors, - ServerName = _transportSettings.ServerName, - CertPassphrase = _transportSettings.CertPassphrase, - CertPath = _transportSettings.CertPath, - Certs = _transportSettings.Certs, - CertificateSelectionCallback = _transportSettings.CertificateSelectionCallback, - CertificateValidationCallback = _transportSettings.CertificateValidationCallback - }; - connectionFactory.Port = AmqpTcpEndpoint.DefaultAmqpSslPort; - } - - if (!string.IsNullOrEmpty(_transportSettings.VirtualHost)) - { - connectionFactory.VirtualHost = _transportSettings.VirtualHost; - } - _connection = connectionFactory.CreateConnection(_hosts, _queueName); - } - - public bool IsConnected() - { - return _connection?.IsOpen ?? false; - } - - public IModel CreateModel() - { - if (_connection == null) - CreateConnection(); - - return _connection.CreateModel(); - } - - public void Dispose() - { - if (_connection == null) return; - _connection.Abort(); - _connection = null; - } - } -} diff --git a/src/ServiceConnect.Client.RabbitMQ/Connection/Connection.cs b/src/ServiceConnect.Client.RabbitMQ/Connection/Connection.cs new file mode 100644 index 000000000..f0dea2c1f --- /dev/null +++ b/src/ServiceConnect.Client.RabbitMQ/Connection/Connection.cs @@ -0,0 +1,273 @@ +using Microsoft.Extensions.Logging; +using RabbitMQ.Client; +using ServiceConnect.Interfaces.Configuration; + +namespace ServiceConnect.Client.RabbitMQ; + +/// +/// Manages a RabbitMQ connection for ServiceConnect producers and consumers. +/// +/// The transport settings used to configure the connection factory. +/// The client-provided connection name used by RabbitMQ. +/// The logger used for connection lifecycle events. +internal sealed class Connection(ITransportConfiguration transportSettings, string queueName, ILogger logger) : IAsyncDisposable, IServiceConnectConnection +{ + private IConnection? _connection; + private readonly SemaphoreSlim _connectionLock = new(1, 1); + private int _disposed; + private readonly TimeSpan _disposeLockTimeout = TimeSpan.FromSeconds(30); + private readonly ConnectionLifecycleHooks _lifecycle = new(logger); + + // Test seam: when set, replaces the call to ConnectionFactory.CreateConnectionAsync + // with the supplied factory. Mirrors ProducerConnection.CreateConnectionForTests. + internal Func>? CreateConnectionForTests; + + private readonly string[] _hosts = (transportSettings ?? throw new ArgumentNullException(nameof(transportSettings))) + .Host?.Split(',') ?? throw new ArgumentException("transportSettings.Host must be set to a non-null comma-separated host list.", nameof(transportSettings)); + + private async Task ConnectAsync(CancellationToken cancellationToken) + { + if (Volatile.Read(ref _connection) != null) + { + return; + } + + await _connectionLock.WaitAsync(cancellationToken).ConfigureAwait(false); + try + { + ObjectDisposedException.ThrowIf(Volatile.Read(ref _disposed) != 0, this); + if (Volatile.Read(ref _connection) == null) + { + await CreateConnectionCoreAsync(cancellationToken).ConfigureAwait(false); + } + } + finally + { + _connectionLock.Release(); + } + } + + private async Task CreateConnectionCoreAsync(CancellationToken cancellationToken) + { + logger.LogDebug("Creating connection to queue {QueueName}", queueName); + var connectionFactory = BuildConnectionFactory(); + var connector = CreateConnectionForTests ?? ((f, h, n, ct) => f.CreateConnectionAsync(h, n, ct)); + var newConnection = await connector(connectionFactory, _hosts, queueName, cancellationToken).ConfigureAwait(false); + + // Race window 1: DisposeAsync may have set _disposed and forced teardown (after a lock-wait + // timeout) while we were creating. If so, tear down the just-built connection rather than + // assigning it to a disposed instance. + if (Volatile.Read(ref _disposed) != 0) + { + await TearDownOrphanAsync(newConnection).ConfigureAwait(false); + throw new ObjectDisposedException(nameof(Connection), + "Connection was disposed while a connection create was in flight; the just-built connection has been torn down."); + } + + _connection = newConnection; + + // Race window 2: DisposeAsync may have timed out on the connection lock between our + // check above and the assignment, then read _connection as null (the prior value) and + // returned without tearing down. Re-check after assigning and clean up if so — we + // exchange to null so our orphan-teardown does not race a DisposeAsync that finally + // acquires the lock and sees the assigned-then-nulled value. This mirrors the pattern + // in ProducerConnection.CreateConnectionAsync. + if (Volatile.Read(ref _disposed) != 0) + { + var orphan = Interlocked.Exchange(ref _connection, null); + await TearDownOrphanAsync(orphan).ConfigureAwait(false); + throw new ObjectDisposedException(nameof(Connection), + "Connection was disposed while a connection create was in flight; the just-built connection has been torn down."); + } + + _lifecycle.Attach(_connection); + // VirtualHost is set on the ConnectionFactory (and thus the connection) but is not + // surfaced on AmqpTcpEndpoint. Read it from the transport config — the value the + // factory was built with is exactly what the broker will route against. + var (host, port) = ConnectionLifecycleHooks.ResolveEndpoint(_connection); + RabbitMqClientLog.ConnectionOpened( + logger, + host, + port, + string.IsNullOrEmpty(transportSettings.VirtualHost) ? "/" : transportSettings.VirtualHost, + _connection.ClientProvidedName ?? string.Empty); + } + + private ConnectionFactory BuildConnectionFactory() => + ConnectionFactoryBuilder.Build(transportSettings, logger); + + private async Task TearDownOrphanAsync(IConnection? orphan) + { + if (orphan is null) + { + return; + } + try + { + if (orphan.IsOpen) + { + await orphan.CloseAsync().ConfigureAwait(false); + } + orphan.Dispose(); + } + catch (Exception ex) + { + logger.LogWarning(ex, "Error tearing down orphan connection after dispose-during-create race"); + } + } + + /// + /// Determines whether the underlying RabbitMQ connection is open. + /// + /// when the connection is open; otherwise, . + public bool IsConnected() + { + return Volatile.Read(ref _connection)?.IsOpen ?? false; + } + + /// + /// Returns the underlying , or if not yet established or already disposed. + /// + public IConnection? UnderlyingConnection => Volatile.Read(ref _connection); + + /// + /// Creates a RabbitMQ channel, establishing the connection first if needed. + /// + /// A newly created channel. + public Task CreateChannelAsync(CancellationToken cancellationToken = default) + => CreateChannelAsync(options: null, cancellationToken); + + /// + /// Creates a RabbitMQ channel with the supplied options, establishing the connection first if needed. + /// + /// Channel options applied to the underlying RabbitMQ channel, or for defaults. + /// A token used to cancel connection-establishment and channel-open operations. + /// A newly created channel. + public async Task CreateChannelAsync(CreateChannelOptions? options, CancellationToken cancellationToken = default) + { + ObjectDisposedException.ThrowIf(Volatile.Read(ref _disposed) != 0, this); + + var conn = Volatile.Read(ref _connection); + if (conn == null) + { + await ConnectAsync(cancellationToken).ConfigureAwait(false); + // Read _connection BEFORE re-checking _disposed: a concurrent DisposeAsync sets + // _disposed=1 then nulls _connection. Reading _disposed first leaves a window + // where the disposal-check passes and the subsequent _connection read returns + // null — surfacing a misleading InvalidOperationException instead of the + // canonical ObjectDisposedException. Reading _connection first and only + // consulting _disposed on the null branch closes the window: a null _connection + // post-ConnectAsync can only be the result of an interleaving dispose. + conn = Volatile.Read(ref _connection); + if (conn is null) + { + if (Volatile.Read(ref _disposed) != 0) + { + throw new ObjectDisposedException(nameof(Connection)); + } + throw new InvalidOperationException("Connection was not initialized."); + } + } + + try + { + return await conn.CreateChannelAsync(options, cancellationToken).ConfigureAwait(false); + } + catch (ObjectDisposedException) when (Volatile.Read(ref _disposed) != 0) + { + // Concurrent DisposeAsync tore down the underlying IConnection mid-call. The + // RabbitMQ.Client ODE carries ObjectName="IConnection" which leaks the inner + // type and breaks ObjectName-based callers; surface this Connection's name so + // the "our instance was disposed" signal is consistent across all race paths. + throw new ObjectDisposedException(nameof(Connection)); + } + } + + /// + /// Closes and disposes the underlying RabbitMQ connection. + /// + public async ValueTask DisposeAsync() + { + if (Interlocked.Exchange(ref _disposed, 1) != 0) + { + return; + } + + // Share a single stopwatch budget across lock wait + connection close so the + // worst-case dispose latency is bounded by _disposeLockTimeout, not 2x. Without + // the shared budget a stalled broker swallowing close frames hangs DisposeAsync + // indefinitely after the semaphore wait, breaking container-orchestrated SIGTERM + // grace windows. + var stopwatch = System.Diagnostics.Stopwatch.StartNew(); + IConnection? conn = null; + var acquired = await _connectionLock.WaitAsync(_disposeLockTimeout).ConfigureAwait(false); + try + { + if (!acquired) + { + logger.LogWarning( + "Connection.DisposeAsync timed out waiting for the connection lock after {Timeout}; forcing disposal.", + _disposeLockTimeout); + } + conn = _connection; + _connection = null; + } + finally + { + if (acquired) + { + _connectionLock.Release(); + } + } + + if (conn != null) + { + try + { + // Detach BEFORE close so the broker-driven ConnectionShutdownAsync that fires + // inside CloseAsync is not re-emitted as a ConnectionLost log entry. The handler + // detach is paired with the matching attach in CreateConnectionCoreAsync against + // this same IConnection reference. + _lifecycle.Detach(conn); + + if (conn.IsOpen) + { + var remaining = _disposeLockTimeout - stopwatch.Elapsed; + if (remaining <= TimeSpan.Zero) + { + // Budget exhausted by the lock wait — issue a synchronous close with a + // minimal timeout so we don't hang. The broker may still drop the close + // frame, but we do not wait on the result. + remaining = TimeSpan.FromMilliseconds(100); + } + using var closeCts = new CancellationTokenSource(remaining); + try + { + await conn.CloseAsync(closeCts.Token).ConfigureAwait(false); + } + catch (OperationCanceledException) when (closeCts.IsCancellationRequested) + { + logger.LogWarning( + "Connection.DisposeAsync timed out closing the connection within the remaining {Remaining} budget; proceeding with disposal.", + remaining); + } + } + + conn.Dispose(); + } + catch (Exception ex) + { + logger.LogWarning(ex, "Error closing connection during async dispose"); + } + } + + // _connectionLock is intentionally NOT Disposed: + // SemaphoreSlim.Dispose only releases the lazily-allocated WaitHandle, and + // we never call AvailableWaitHandle, so disposal is a functional no-op. A + // concurrent ConnectAsync's `finally { Release(); }` running on a disposed + // semaphore would throw ObjectDisposedException out of the unwind path, + // which we cannot prevent without holding GC references to every caller. + // The field is GC'd with this Connection instance. + } + +} diff --git a/src/ServiceConnect.Client.RabbitMQ/Connection/ConnectionFactoryBuilder.cs b/src/ServiceConnect.Client.RabbitMQ/Connection/ConnectionFactoryBuilder.cs new file mode 100644 index 000000000..90521b9df --- /dev/null +++ b/src/ServiceConnect.Client.RabbitMQ/Connection/ConnectionFactoryBuilder.cs @@ -0,0 +1,142 @@ +using System.Globalization; +using Microsoft.Extensions.Logging; +using Microsoft.Extensions.Logging.Abstractions; +using RabbitMQ.Client; +using ServiceConnect.Interfaces.Configuration; + +namespace ServiceConnect.Client.RabbitMQ; + +/// +/// Shared builder so and +/// don't duplicate port/user/pass/SSL/vhost logic. +/// +internal static class ConnectionFactoryBuilder +{ + /// + /// Default heartbeat interval applied when the caller hasn't configured one. + /// Shared between producer and consumer so both paths use the same fallback. + /// + private static readonly TimeSpan DefaultHeartbeat = TimeSpan.FromSeconds(120); + + /// + /// Builds a from the transport configuration. + /// + /// Transport settings including SSL, credentials, and hosts. + /// Optional logger for adapter-level diagnostics. + public static ConnectionFactory Build(ITransportConfiguration transport, ILogger? logger = null) + { + ArgumentNullException.ThrowIfNull(transport); + + var explicitPortConfigured = transport.ClientSettings.TryGetValue(RabbitMQSettingKeys.Port, out var portVal); + var port = explicitPortConfigured + ? ConvertSettingToInt32(RabbitMQSettingKeys.Port, portVal) + : AmqpTcpEndpoint.UseDefaultPort; + + // AutomaticRecoveryEnabled restores the TCP connection after a broker restart or + // network partition. TopologyRecoveryEnabled extends that to redeclare exchanges, + // queues, and bindings on the recovered connection. Both are enabled together so that + // cluster failover to a fresh broker node fully restores consumer subscriptions and + // producer routing targets. The library's topology recovery is idempotent for + // ServiceConnect's declarations: all exchanges and queues are durable, no passive + // declares are used, and arguments are fixed at startup, so the broker will not + // reject a redeclare with PRECONDITION_FAILED at runtime. Disabling topology recovery + // would break HA failover because the application only redeclares topology during + // Consumer.StartConsumingAsync at startup and has no listener on + // IConnection.RecoverySucceededAsync; a recovered connection to a fresh node would + // find no exchanges, queues, or bindings until the service restarted. + var factory = new ConnectionFactory + { + VirtualHost = "/", + Port = port, + AutomaticRecoveryEnabled = true, + TopologyRecoveryEnabled = true, + RequestedHeartbeat = ResolveHeartbeat(transport, logger ?? NullLogger.Instance), + }; + + // Apply NetworkRecoveryInterval only when explicitly configured. The unset path leaves + // RabbitMQ.Client's own default in place, so a future client release that adjusts the + // default isn't silently overridden by an opinionated value here. Throw on bad type to + // surface misconfiguration loudly, matching the convention in ConvertSettingToInt32. + if (transport.ClientSettings.TryGetValue(RabbitMQSettingKeys.NetworkRecoveryInterval, out var recoveryRaw)) + { + if (recoveryRaw is not TimeSpan recoveryInterval) + { + throw new InvalidOperationException( + $"Setting '{RabbitMQSettingKeys.NetworkRecoveryInterval}' must be a TimeSpan; got value '{recoveryRaw}' of type '{recoveryRaw?.GetType().FullName ?? ""}'."); + } + factory.NetworkRecoveryInterval = recoveryInterval; + } + + if (!string.IsNullOrEmpty(transport.Username)) + { + factory.UserName = transport.Username; + } + + if (!string.IsNullOrEmpty(transport.Password)) + { + factory.Password = transport.Password; + } + + if (transport.SslEnabled) + { + factory.Ssl = SslConfigurationBuilder.BuildSslOptions(transport, logger ?? NullLogger.Instance); + // Only fall back to the default AMQPS port when the user didn't supply one. + // Respecting an explicit port lets TLS deployments on non-default ports connect. + if (!explicitPortConfigured) + { + factory.Port = AmqpTcpEndpoint.DefaultAmqpSslPort; + } + } + + if (!string.IsNullOrEmpty(transport.VirtualHost)) + { + factory.VirtualHost = transport.VirtualHost; + } + + return factory; + } + + // Wraps Convert.ToInt32 so that any conversion failure carries the setting key and + // the offending value, making misconfiguration far easier to diagnose at runtime. + private static int ConvertSettingToInt32(string key, object? value) + { + try + { + return Convert.ToInt32(value, CultureInfo.InvariantCulture); + } + catch (Exception ex) when (ex is FormatException or InvalidCastException or OverflowException) + { + throw new InvalidOperationException( + $"Setting '{key}' must be convertible to Int32; got value '{value}' of type '{value?.GetType().FullName ?? ""}'.", + ex); + } + } + + private static TimeSpan ResolveHeartbeat(ITransportConfiguration transport, ILogger logger) + { + var settings = transport.ClientSettings; + + // Explicit opt-out disables heartbeats (TimeSpan.Zero == "never send one"). Without + // heartbeats, dead-peer detection falls to TCP keepalive (Linux default ~2 hours of + // idle), so the broker holds channel state for stale connections for hours and the + // client never observes ConnectionShutdownAsync. Surface the consequence loudly so + // the operator can see they've opted into it; the xmldoc on RabbitMQSettingKeys + // .HeartbeatEnabled documents the same caveat for static analysis. + if (settings.TryGetValue(RabbitMQSettingKeys.HeartbeatEnabled, out var enabledRaw) + && enabledRaw is bool enabled && !enabled) + { + logger.LogWarning( + "AMQP heartbeats are explicitly disabled ({Setting}=false). Dead-peer detection now relies solely on TCP keepalive (Linux default ~2h idle); a crashed or firewall-isolated client will not be observed for hours, and stale connections hold broker-side channel state. Production deployments should leave heartbeats enabled and tune {HeartbeatTime} instead.", + RabbitMQSettingKeys.HeartbeatEnabled, + RabbitMQSettingKeys.HeartbeatTime); + return TimeSpan.Zero; + } + + if (settings.TryGetValue(RabbitMQSettingKeys.HeartbeatTime, out var timeRaw)) + { + return TimeSpan.FromSeconds(ConvertSettingToInt32(RabbitMQSettingKeys.HeartbeatTime, timeRaw)); + } + + return DefaultHeartbeat; + } +} diff --git a/src/ServiceConnect.Client.RabbitMQ/Connection/ConnectionLifecycleHooks.cs b/src/ServiceConnect.Client.RabbitMQ/Connection/ConnectionLifecycleHooks.cs new file mode 100644 index 000000000..f46ca212b --- /dev/null +++ b/src/ServiceConnect.Client.RabbitMQ/Connection/ConnectionLifecycleHooks.cs @@ -0,0 +1,91 @@ +using Microsoft.Extensions.Logging; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; + +namespace ServiceConnect.Client.RabbitMQ; + +/// +/// Shared event-handler scaffolding for connection-lifecycle Info logs. +/// and ProducerConnection each own one instance and call +/// after a successful create / before close, with +/// the helper supplying the captured event handlers and the +/// emit calls. Pre-extraction these lived as duplicated near-verbatim bodies in both +/// connection classes. +/// +/// +/// Subscribe and unsubscribe must use the same delegate reference, otherwise +/// connection.RecoverySucceededAsync -= … silently no-ops and the handler leaks on +/// the original until GC. The helper captures method-group +/// conversions in fields so and always pass the +/// same instance. +/// +internal sealed class ConnectionLifecycleHooks +{ + private readonly ILogger _logger; + private readonly AsyncEventHandler _onRecoverySucceeded; + private readonly AsyncEventHandler _onConnectionShutdown; + + public ConnectionLifecycleHooks(ILogger logger) + { + _logger = logger; + _onRecoverySucceeded = OnRecoverySucceededAsync; + _onConnectionShutdown = OnConnectionShutdownAsync; + } + + public void Attach(IConnection connection) + { + connection.RecoverySucceededAsync += _onRecoverySucceeded; + connection.ConnectionShutdownAsync += _onConnectionShutdown; + } + + public void Detach(IConnection connection) + { + connection.RecoverySucceededAsync -= _onRecoverySucceeded; + connection.ConnectionShutdownAsync -= _onConnectionShutdown; + } + + private Task OnRecoverySucceededAsync(object? sender, AsyncEventArgs e) + { + if (sender is IConnection connection) + { + var (host, port) = ResolveEndpoint(connection); + RabbitMqClientLog.ConnectionRecovered( + _logger, + host, + port, + connection.ClientProvidedName ?? string.Empty); + } + return Task.CompletedTask; + } + + private Task OnConnectionShutdownAsync(object? sender, ShutdownEventArgs e) + { + if (sender is IConnection connection) + { + var (host, port) = ResolveEndpoint(connection); + RabbitMqClientLog.ConnectionLost( + _logger, + host, + port, + connection.ClientProvidedName ?? string.Empty, + e.Initiator.ToString(), + string.IsNullOrEmpty(e.ReplyText) ? "" : e.ReplyText); + } + return Task.CompletedTask; + } + + /// + /// Reads with a guard for the transient null cases: + /// RabbitMQ.Client can surface a null Endpoint mid-shutdown (the field is torn down + /// before the IConnection itself observably disposes), and Moq + /// proxies leave it null on the Loose default. Returns ("<unknown>", 0) so + /// the lifecycle log emits searchably rather than NREing or printing :0-noise. + /// + public static (string host, int port) ResolveEndpoint(IConnection connection) + { + var endpoint = connection.Endpoint; + return endpoint is null + ? ("", 0) + : (endpoint.HostName, endpoint.Port); + } +} diff --git a/src/ServiceConnect.Client.RabbitMQ/Connection/IServiceConnectConnection.cs b/src/ServiceConnect.Client.RabbitMQ/Connection/IServiceConnectConnection.cs new file mode 100644 index 000000000..d1c8ffa75 --- /dev/null +++ b/src/ServiceConnect.Client.RabbitMQ/Connection/IServiceConnectConnection.cs @@ -0,0 +1,38 @@ +using RabbitMQ.Client; + +namespace ServiceConnect.Client.RabbitMQ; + +/// +/// Represents a RabbitMQ connection abstraction used by ServiceConnect transport components. +/// +internal interface IServiceConnectConnection : IAsyncDisposable +{ + /// + /// Creates a new channel on the underlying RabbitMQ connection. + /// + /// A token used to cancel connection-establishment and channel-open operations. + /// A channel that can be used for RabbitMQ operations. + Task CreateChannelAsync(CancellationToken cancellationToken = default); + + /// + /// Creates a new channel on the underlying RabbitMQ connection with the specified options + /// (for example, to enable publisher confirms). + /// + /// Channel options applied to the underlying RabbitMQ channel, or for defaults. + /// A token used to cancel connection-establishment and channel-open operations. + /// A channel that can be used for RabbitMQ operations. + Task CreateChannelAsync(CreateChannelOptions? options, CancellationToken cancellationToken = default); + + /// + /// Determines whether the underlying RabbitMQ connection is currently open. + /// + /// when the connection is open; otherwise, . + bool IsConnected(); + + /// + /// Returns the underlying , or if the connection + /// has not been established yet or has been disposed. Used by + /// to subscribe to connection-level events (shutdown, blocked, unblocked) for observability. + /// + IConnection? UnderlyingConnection { get; } +} diff --git a/src/ServiceConnect.Client.RabbitMQ/Connection/SslConfigurationBuilder.cs b/src/ServiceConnect.Client.RabbitMQ/Connection/SslConfigurationBuilder.cs new file mode 100644 index 000000000..42c94d3e0 --- /dev/null +++ b/src/ServiceConnect.Client.RabbitMQ/Connection/SslConfigurationBuilder.cs @@ -0,0 +1,60 @@ +using System.Net.Security; +using Microsoft.Extensions.Logging; +using RabbitMQ.Client; +using ServiceConnect.Interfaces.Configuration; + +namespace ServiceConnect.Client.RabbitMQ; + +/// +/// Builds RabbitMQ SSL options from ServiceConnect transport configuration. +/// +internal static class SslConfigurationBuilder +{ + /// + /// Creates an instance for RabbitMQ connections. + /// + /// The transport settings that contain SSL-related values. + /// Logger used to surface TLS misconfiguration at startup. + /// A configured instance with SSL enabled. + public static SslOption BuildSslOptions(ITransportConfiguration transportSettings, ILogger logger) + { + if (string.IsNullOrWhiteSpace(transportSettings.ServerName)) + { + throw new ArgumentException("ServerName is required when SSL is enabled. Configure ITransportConfiguration.ServerName.", nameof(transportSettings)); + } + + if (transportSettings.AcceptablePolicyErrors != SslPolicyErrors.None) + { + logger.LogWarning( + "AcceptablePolicyErrors is set to {Errors}, which weakens TLS certificate validation. " + + "Set to SslPolicyErrors.None in production.", + transportSettings.AcceptablePolicyErrors); + } + + if (transportSettings.CertificateValidationCallback != null) + { + logger.LogWarning( + "A custom CertificateValidationCallback is configured. A callback that returns true " + + "unconditionally disables all TLS certificate validation."); + } + + var sslOption = new SslOption + { + Enabled = true, + ServerName = transportSettings.ServerName!, + CertPath = transportSettings.CertPath ?? string.Empty, + AcceptablePolicyErrors = transportSettings.AcceptablePolicyErrors, + Certs = transportSettings.Certs, + Version = transportSettings.SslProtocol, + CertPassphrase = transportSettings.CertPassphrase, + CertificateSelectionCallback = transportSettings.CertificateSelectionCallback + }; + + if (transportSettings.CertificateValidationCallback != null) + { + sslOption.CertificateValidationCallback = transportSettings.CertificateValidationCallback; + } + + return sslOption; + } +} diff --git a/src/ServiceConnect.Client.RabbitMQ/Consumer.cs b/src/ServiceConnect.Client.RabbitMQ/Consumer.cs deleted file mode 100644 index cad84eed8..000000000 --- a/src/ServiceConnect.Client.RabbitMQ/Consumer.cs +++ /dev/null @@ -1,245 +0,0 @@ -using RabbitMQ.Client; -using ServiceConnect.Interfaces; -using System; -using System.Collections.Concurrent; -using System.Collections.Generic; - -namespace ServiceConnect.Client.RabbitMQ -{ - public class Consumer : IConsumer - { - private IModel _model; - private bool _durable; - private int _retryDelay; - private bool _exclusive; - private bool _autoDelete; - private IServiceConnectConnection _connection; - private readonly ILogger _logger; - private ITransportSettings _transportSettings; - private IDictionary _queueArguments; - private IDictionary _retryQueueArguments; - private IDictionary _utilityQueueArguments; - private readonly ConcurrentBag _clients = new(); - - public Consumer(ILogger logger) - { - _logger = logger; - } - - public Consumer(IServiceConnectConnection connection, ILogger logger) - { - _connection = connection; - _logger = logger; - } - - public void StartConsuming(string queueName, IList messageTypes, ConsumerEventHandler eventHandler, IConfiguration config) - { - _transportSettings = config.TransportSettings; - _durable = !_transportSettings.ClientSettings.ContainsKey("Durable") || (bool)_transportSettings.ClientSettings["Durable"]; - _exclusive = _transportSettings.ClientSettings.ContainsKey("Exclusive") && (bool)_transportSettings.ClientSettings["Exclusive"]; - _autoDelete = _transportSettings.ClientSettings.ContainsKey("AutoDelete") && (bool)_transportSettings.ClientSettings["AutoDelete"]; - _queueArguments = _transportSettings.ClientSettings.ContainsKey("Arguments") ? (IDictionary)_transportSettings.ClientSettings["Arguments"] : new Dictionary(); - _retryQueueArguments = _transportSettings.ClientSettings.ContainsKey("RetryQueueArguments") ? (IDictionary)_transportSettings.ClientSettings["RetryQueueArguments"] : new Dictionary(); - _utilityQueueArguments = _transportSettings.ClientSettings.ContainsKey("UtilityQueueArguments") ? (IDictionary)_transportSettings.ClientSettings["UtilityQueueArguments"] : new Dictionary(); - _retryDelay = _transportSettings.RetryDelay; - - _connection ??= new Connection(config.TransportSettings, queueName, _logger); - - _model ??= _connection.CreateModel(); - - // Configure exchanges - foreach (string messageType in messageTypes) - { - ConfigureExchange(messageType, "fanout"); - } - - // Configure queue - ConfigureQueue(queueName); - - // Purge all messages on queue - if (_transportSettings.PurgeQueueOnStartup) - { - _logger.Debug("Purging queue"); - _ = _model.QueuePurge(queueName); - } - - // Configure retry queue ( but only if retries are expected ) - if (_transportSettings.MaxRetries > 0) - { - ConfigureRetryQueue(queueName); - } - - // Configure Error Queue/Exchange - string errorExchange = ConfigureErrorExchange(); - string errorQueue = ConfigureErrorQueue(); - - if (!string.IsNullOrEmpty(errorExchange)) - { - _model.QueueBind(errorQueue, errorExchange, string.Empty, _utilityQueueArguments); - } - - // Configure Audit Queue/Exchange - if (_transportSettings.AuditingEnabled) - { - string auditExchange = ConfigureAuditExchange(); - string auditQueue = ConfigureAuditQueue(); - - if (!string.IsNullOrEmpty(auditExchange)) - { - _model.QueueBind(auditQueue, auditExchange, string.Empty, _utilityQueueArguments); - } - } - - int clientCount = config.Clients; - - for (int i = 0; i < clientCount; i++) - { - Client client = new(_connection, config.TransportSettings, _logger); - client.StartConsuming(eventHandler, queueName); - foreach (string messageType in messageTypes) - { - client.ConsumeMessageType(messageType); - } - _clients.Add(client); - } - } - - public void Dispose() - { - foreach (Client consumer in _clients) - { - consumer.Dispose(); - } - - _model.Dispose(); - _connection.Dispose(); - } - - private void ConfigureExchange(string exchangeName, string type) - { - try - { - // Hard code auto delete and durable to sensible defaults so that producers and consumers dont try to declare exchanges with different settings. - _model.ExchangeDeclare(exchangeName, type, true, false, null); - } - catch (Exception ex) - { - _logger.Warn(string.Format("Error declaring exchange {0}", ex.Message)); - } - } - - private void ConfigureQueue(string queueName) - { - try - { - _ = _model.QueueDeclare(queueName, _durable, _exclusive, _autoDelete, _queueArguments); - } - catch (Exception ex) - { - _logger.Warn(string.Format("Error declaring queue - {0}", ex.Message)); - } - } - - private void ConfigureRetryQueue(string queueName) - { - // When message goes to retry queue, it falls-through to dead-letter exchange (after _retryDelay) - // dead-letter exchange is of type "direct" and bound to the original queue. - string retryQueueName = queueName + ".Retries"; - string retryDeadLetterExchangeName = queueName + ".Retries.DeadLetter"; - - try - { - _model.ExchangeDeclare(retryDeadLetterExchangeName, "direct", _durable, _autoDelete, null); - } - catch (Exception ex) - { - _logger.Warn(string.Format("Error declaring dead letter exchange - {0}", ex.Message)); - } - - try - { - _model.QueueBind(queueName, retryDeadLetterExchangeName, retryQueueName, _retryQueueArguments); // only redeliver to the original queue (use _queueName as routing key) - } - catch (Exception ex) - { - _logger.Warn(string.Format("Error binding dead letter queue - {0}", ex.Message)); - } - - Dictionary arguments = new(_retryQueueArguments) - { - {"x-dead-letter-exchange", retryDeadLetterExchangeName}, - {"x-message-ttl", _retryDelay} - }; - - try - { - // We never have consumers on the retry queue. Therefore set autodelete to false. - _ = _model.QueueDeclare(retryQueueName, _durable, false, false, arguments); - } - catch (Exception ex) - { - _logger.Warn(string.Format("Error declaring queue {0}", ex.Message)); - } - } - - private string ConfigureErrorExchange() - { - try - { - _model.ExchangeDeclare(_transportSettings.ErrorQueueName, "direct"); - } - catch (Exception ex) - { - _logger.Warn(string.Format("Error declaring error exchange {0}", ex.Message)); - } - - return _transportSettings.ErrorQueueName; - } - - private string ConfigureErrorQueue() - { - try - { - _ = _model.QueueDeclare(_transportSettings.ErrorQueueName, true, false, false, _utilityQueueArguments); - } - catch (Exception ex) - { - _logger.Warn(string.Format("Error declaring error queue {0}", ex.Message)); - } - - return _transportSettings.ErrorQueueName; - } - - private string ConfigureAuditExchange() - { - try - { - _model.ExchangeDeclare(_transportSettings.AuditQueueName, "direct"); - } - catch (Exception ex) - { - _logger.Warn(string.Format("Error declaring audit exchange {0}", ex.Message)); - } - - return _transportSettings.AuditQueueName; - } - - private string ConfigureAuditQueue() - { - try - { - _ = _model.QueueDeclare(_transportSettings.AuditQueueName, true, false, false, _utilityQueueArguments); - } - catch (Exception ex) - { - _logger.Warn(string.Format("Error declaring audit queue {0}", ex.Message)); - } - return _transportSettings.AuditQueueName; - } - - public bool IsConnected() - { - return _connection?.IsConnected() ?? false; - } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Client.RabbitMQ/Consumer/Consumer.cs b/src/ServiceConnect.Client.RabbitMQ/Consumer/Consumer.cs new file mode 100644 index 000000000..e8bc86f39 --- /dev/null +++ b/src/ServiceConnect.Client.RabbitMQ/Consumer/Consumer.cs @@ -0,0 +1,501 @@ +using System.Collections.Concurrent; +using System.Linq; +using Microsoft.Extensions.Logging; +using RabbitMQ.Client; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; + +namespace ServiceConnect.Client.RabbitMQ; + +/// +/// RabbitMQ-backed implementation of for ServiceConnect. +/// +internal sealed class Consumer : IConsumer +{ + private IChannel? _model; + private IServiceConnectConnection? _connection; + // True only when this Consumer created the connection. A connection supplied via + // the constructor is caller-owned and must NOT be disposed here — disposing it + // would tear down whatever else the caller is using it for (Producer, other Consumers). + private bool _ownsConnection; + private readonly ILogger _logger; + private readonly ITransportConfiguration _transportConfiguration; + private readonly IQueueConfiguration _queueConfiguration; + private readonly IBusConfiguration _busConfiguration; + private readonly ConcurrentBag _clients = []; + private int _started; // 0 = not started, 1 = started; access only via Interlocked + private int _stopped; // 0 = active, 1 = stopped or disposed; latched for IsStopped readers + // Startup paths (StartConsumingAsync) acquire this. DisposeAsync uses a SEPARATE + // semaphore so a wedged startup cannot block SIGTERM shutdown. The two paths share + // _connection and _model state; safety is preserved by the _disposed latch: + // DisposeAsync sets _disposed FIRST, atomically claims _connection/_model via + // Interlocked.Exchange, and disposes whatever it claimed. StartConsumingAsync checks + // _disposed after each await point that establishes shared state and cleans up its + // own partial work if dispose fired mid-setup. + private readonly SemaphoreSlim _startupSemaphore = new(1, 1); + + // DisposeAsync acquires this. Bounded by BusConfiguration.DisposeTimeout so a + // wedged dispose path (e.g. broker handshake stuck) eventually surfaces rather + // than blocking process exit. + private readonly SemaphoreSlim _disposeSemaphore = new(1, 1); + + // Latched on DisposeAsync entry. StartConsumingAsync's await-resumption checks + // Volatile.Read(ref _disposed) after each step and bails out if non-zero, so + // dispose-during-startup cannot race the _connection/_model field assignments. + private int _disposed; + private readonly bool _durable; + private readonly int _retryDelay; + private readonly bool _exclusive; + private readonly bool _autoDelete; + private readonly Dictionary _queueArguments; + private readonly Dictionary _retryQueueArguments; + private readonly Dictionary _utilityQueueArguments; + private readonly RabbitMqTopologyProvisioner _topologyProvisioner; + + /// + /// Initializes a new consumer instance using the supplied ServiceConnect configuration. + /// + /// Transport settings used to configure RabbitMQ connectivity and retry behavior. + /// Queue settings used for queue names, auditing, and purge behavior. + /// Bus settings that control consumer concurrency. + /// The logger used for consumer lifecycle and provisioning messages. + /// An optional connection to reuse instead of creating a new one. + public Consumer(ITransportConfiguration transportConfiguration, IQueueConfiguration queueConfiguration, + IBusConfiguration busConfiguration, ILogger logger, IServiceConnectConnection? connection = null) + { + _transportConfiguration = transportConfiguration; + _queueConfiguration = queueConfiguration; + _busConfiguration = busConfiguration; + _logger = logger; + _connection = connection; + _ownsConnection = connection is null; + + // Move configuration extraction to the constructor, making fields readonly. + var clientSettings = transportConfiguration.ClientSettings; + _durable = !clientSettings.TryGetValue(RabbitMQSettingKeys.Durable, out var durableVal) || (bool)durableVal; + _exclusive = clientSettings.TryGetValue(RabbitMQSettingKeys.Exclusive, out var exclusiveVal) && (bool)exclusiveVal; + _autoDelete = clientSettings.TryGetValue(RabbitMQSettingKeys.AutoDelete, out var autoDeleteVal) && (bool)autoDeleteVal; + _queueArguments = CoerceToQueueArgs(clientSettings, RabbitMQSettingKeys.Arguments); + _retryQueueArguments = CoerceToQueueArgs(clientSettings, RabbitMQSettingKeys.RetryQueueArguments); + _utilityQueueArguments = CoerceToQueueArgs(clientSettings, RabbitMQSettingKeys.UtilityQueueArguments); + _retryDelay = transportConfiguration.RetryDelay; + + // Create the topology provisioner once. + _topologyProvisioner = new RabbitMqTopologyProvisioner(logger); + } + + /// + /// Gets a value indicating whether the consumer currently has an open RabbitMQ connection. + /// + public bool IsConnected => _connection?.IsConnected() ?? false; + + /// + /// Gets a value indicating whether the broker has cancelled at least one of our hosts' + /// consumers (queue deleted, policy expired, mirror promoted). The Bus surfaces this via + /// = false so BusConsumingHealthCheck reports Unhealthy. + /// + public bool IsCancelledByBroker => _clients.OfType().Any(c => c.IsCancelledByBroker); + + /// + public bool IsStopped => Volatile.Read(ref _stopped) != 0; + + /// + /// Declares the required RabbitMQ topology and starts consuming messages for the configured queue. + /// + /// The queue to consume from. + /// The message types whose exchanges should be bound for this consumer. + /// The callback invoked when a message is delivered. + /// A token used to cancel startup or consumption initialization. + public async Task StartConsumingAsync(string queueName, IReadOnlyList messageTypes, ConsumerEventHandler eventHandler, CancellationToken cancellationToken = default) + { + // Reject a zero or negative ConsumerCount before acquiring start state. When this + // consumer is constructed directly (bypassing the builder), the builder's validator + // does not run, so the guard here is the last line of defence against a + // misconfiguration that would silently skip the client-construction loop and leave + // the bus consuming nothing. + if (_busConfiguration.ConsumerCount < 1) + { + throw new InvalidOperationException( + $"BusConfiguration.ConsumerCount must be at least 1 (got {_busConfiguration.ConsumerCount})."); + } + + if (Interlocked.CompareExchange(ref _started, 1, 0) != 0) + { + throw new InvalidOperationException( + "Consumer is already consuming. Call DisposeAsync before starting again."); + } + + // Clear the stopped latch — DisposeAsync sets it for IsStopped readers, and a + // DisposeAsync → StartConsumingAsync cycle (supported by the _started reset in + // DisposeAsync) must report the freshly-started consumer as not-stopped. + Interlocked.Exchange(ref _stopped, 0); + + // Acquire the startup lock for the duration of setup. Serialises concurrent + // StartConsumingAsync calls so only one sets up the channel and _hosts bag at + // a time. Honour the caller's cancellation token directly; this lock is + // independent of DisposeAsync so a dispose cannot block entry here. + await _startupSemaphore.WaitAsync(cancellationToken).ConfigureAwait(false); + var lifecycleHeld = true; + + try + { + cancellationToken.ThrowIfCancellationRequested(); + + if (_connection is null) + { + _connection = new Connection(_transportConfiguration, queueName, _logger); + _ownsConnection = true; + // Check immediately: DisposeAsync may have latched _disposed and atomically + // claimed _connection (returning null) while we were assigning. If so, throw + // so the catch block's Interlocked.Exchange(_connection) will claim the live + // instance we just wrote and dispose it. + if (Volatile.Read(ref _disposed) != 0) + { + throw new OperationCanceledException("Consumer was disposed during startup."); + } + } + IChannel? setupChannel = null; + try + { + setupChannel = await _connection.CreateChannelAsync(cancellationToken).ConfigureAwait(false); + _model = setupChannel; + + // DisposeAsync may have run during CreateChannelAsync and claimed _model via + // Interlocked.Exchange. If so, throw so the inner finally closes setupChannel + // (which DisposeAsync already disposed — IsOpen: true guard prevents double-close) + // and the catch block atomically claims _connection and disposes it. + if (Volatile.Read(ref _disposed) != 0) + { + throw new OperationCanceledException("Consumer was disposed during startup."); + } + + // Mark as initial setup for re-throwing on first topology setup. + const bool isInitialSetup = true; + + // Configure exchanges + foreach (string messageType in messageTypes) + { + await _topologyProvisioner.ConfigureDeclareExchangeAsync(_model, messageType, ExchangeType.Fanout, isInitialSetup, cancellationToken).ConfigureAwait(false); + } + + // Configure queue + await _topologyProvisioner.ConfigureDeclareQueueAsync( + _model, + queueName, + _durable, + _exclusive, + _autoDelete, + _queueArguments, + isInitialSetup, + cancellationToken).ConfigureAwait(false); + + // Purge all messages on queue + if (_queueConfiguration.PurgeQueueOnStartup) + { + _logger.LogDebug("Purging queue"); + await _model.QueuePurgeAsync(queueName, cancellationToken).ConfigureAwait(false); + } + + // Configure retry queue (but only if retries are expected) + if (_transportConfiguration.MaxRetries > 0) + { + await _topologyProvisioner.ConfigureRetryTopologyAsync( + _model, queueName, _durable, _autoDelete, _retryDelay, + _retryQueueArguments, isInitialSetup, cancellationToken).ConfigureAwait(false); + } + + // Use the provisioner for utility queue setup. + string errorExchangeName = _queueConfiguration.ErrorQueueName; + await _topologyProvisioner.ConfigureDeclareUtilityQueueAsync(_model, errorExchangeName, _utilityQueueArguments, isInitialSetup, cancellationToken).ConfigureAwait(false); + + // Configure Audit Queue/Exchange + if (_queueConfiguration.AuditingEnabled) + { + string auditQueueName = _queueConfiguration.AuditQueueName; + await _topologyProvisioner.ConfigureDeclareUtilityQueueAsync(_model, auditQueueName, _utilityQueueArguments, isInitialSetup, cancellationToken).ConfigureAwait(false); + } + } + finally + { + // Always close the setup channel once topology provisioning completes or fails. + if (setupChannel is { IsOpen: true }) + { + await setupChannel.CloseAsync().ConfigureAwait(false); + } + + setupChannel?.Dispose(); + if (ReferenceEquals(_model, setupChannel)) + { + _model = null; + } + } + + int clientCount = _busConfiguration.ConsumerCount; + + for (int i = 0; i < clientCount; i++) + { + var retryHandler = new MessageRetryHandler( + _transportConfiguration.MaxRetries, + _queueConfiguration.ErrorQueueName, + _queueConfiguration.QueueName, + _logger, + timeProvider: null, + errorsDisabled: _queueConfiguration.DisableErrors); + var auditPublisher = new MessageAuditPublisher(_queueConfiguration); + var admissionGate = new RabbitMqAdmissionGate(_queueConfiguration.QueueName); + RabbitMqConsumerHost client = new( + _connection, + _transportConfiguration, + _queueConfiguration, + _busConfiguration, + retryHandler, + admissionGate, + auditPublisher, + _logger); + // Register the host before starting so a failure in PrepareAsync or + // ConsumeMessageTypeAsync on a later iteration does not leak already-started + // hosts. DisposeAsync iterates _clients and tolerates half-started hosts. + _clients.Add(client); + await client.PrepareAsync(eventHandler, queueName, cancellationToken: cancellationToken).ConfigureAwait(false); + foreach (string messageType in messageTypes) + { + await client.ConsumeMessageTypeAsync(messageType, cancellationToken).ConfigureAwait(false); + } + await client.BeginConsumingAsync(cancellationToken).ConfigureAwait(false); + } + } + catch + { + // Reset _started so a subsequent StartConsumingAsync can retry; without this, a + // failure mid-setup leaves the consumer in a half-built "already consuming" state + // requiring an explicit DisposeAsync to recover. + Interlocked.Exchange(ref _started, 0); + + // Atomically claim the connection before releasing the lifecycle semaphore + // so a concurrent DisposeAsync (which also uses Interlocked.Exchange on + // _connection) cannot race this cleanup path. If DisposeAsync already claimed + // the field, Exchange returns null and RecoverStartFailureAsync skips disposal. + IServiceConnectConnection? connectionToDispose = null; + if (_ownsConnection) + { + connectionToDispose = Interlocked.Exchange(ref _connection, null); + if (connectionToDispose is not null) + { + _ownsConnection = false; + } + } + + if (lifecycleHeld) + { + _startupSemaphore.Release(); + lifecycleHeld = false; + } + + await RecoverStartFailureAsync(connectionToDispose).ConfigureAwait(false); + throw; + } + finally + { + if (lifecycleHeld) + { + _startupSemaphore.Release(); + } + } + } + + // Recovery cleanup for StartConsumingAsync's catch path. Drains _clients (in case the + // for-loop added hosts before the failure) and disposes the owned connection captured + // before the lifecycle semaphore was released. Idempotent against Consumer.DisposeAsync's + // own _clients.Clear() / connection dispose — both use TryTake and IAsyncDisposable + // patterns that tolerate the second invocation. + private async Task RecoverStartFailureAsync(IServiceConnectConnection? connectionToDispose) + { + while (_clients.TryTake(out var partial)) + { + try { await partial.DisposeAsync().ConfigureAwait(false); } + catch (Exception disposeEx) { _logger.LogWarning(disposeEx, "Error disposing partial host during StartConsumingAsync failure recovery"); } + } + if (connectionToDispose is not null) + { + try { await connectionToDispose.DisposeAsync().ConfigureAwait(false); } + catch (Exception connEx) { _logger.LogWarning(connEx, "Error disposing owned connection during StartConsumingAsync failure recovery"); } + } + } + + /// + /// Issues a graceful BasicCancel to every consumer host so the broker stops delivering, + /// then waits for in-flight handler invocations to drain. Does not tear down the + /// channel/connection — that happens on . Idempotent. + /// + public async Task StopConsumingAsync(CancellationToken cancellationToken = default) + { + // Latch IsStopped on entry so a probe firing during the drain reports the consumer + // as permanently stopped rather than waiting out the recovery-grace window. + Interlocked.Exchange(ref _stopped, 1); + + // Stop in parallel so aggregate latency is O(graceful-shutdown-timeout) rather than + // O(N * timeout). Per-host failures stay isolated via the inner try/catch so a + // single host's error cannot short-circuit the rest via Task.WhenAll's aggregate- + // exception path. + var stopTasks = _clients + .OfType() + .Select(async host => + { + try + { + await host.StopAsync(cancellationToken).ConfigureAwait(false); + } + catch (OperationCanceledException) when (cancellationToken.IsCancellationRequested) + { + throw; + } + catch (Exception ex) + { + _logger.LogWarning(ex, "Error stopping consumer host - continuing"); + } + }) + .ToArray(); + + await Task.WhenAll(stopTasks).ConfigureAwait(false); + } + + /// + /// Stops active consumer hosts and releases RabbitMQ resources owned by this instance. + /// + public async ValueTask DisposeAsync() + { + // Latch _disposed FIRST so StartConsumingAsync's post-await checks see the flag + // before DisposeAsync proceeds to atomically claim _connection/_model below. + // Idempotent: if a concurrent DisposeAsync already set the flag, return immediately. + if (Interlocked.Exchange(ref _disposed, 1) != 0) + { + return; + } + + // Latch IsStopped so a health probe firing during disposal reports the + // consumer as permanently stopped rather than waiting out the recovery-grace window. + Interlocked.Exchange(ref _stopped, 1); + + // Bounded by DisposeTimeout so a wedged dispose itself cannot hang container shutdown. + // The semaphore is dedicated to DisposeAsync; a still-running StartConsumingAsync + // acquires its own _startupSemaphore and runs concurrently with dispose. This is + // intentional — the pre-split single-semaphore design had StartConsumingAsync + // blocking SIGTERM when a topology-provision retry loop held the lock. + var lifecycleTimeout = _busConfiguration.DisposeTimeout > TimeSpan.Zero + ? _busConfiguration.DisposeTimeout + : TimeSpan.FromSeconds(30); + var lifecycleAcquired = await _disposeSemaphore.WaitAsync(lifecycleTimeout).ConfigureAwait(false); + if (!lifecycleAcquired) + { + _logger.LogWarning( + "Consumer.DisposeAsync timed out waiting to acquire the dispose semaphore after {Timeout}. " + + "A concurrent DisposeAsync may still be running. _model and _connection are not torn down; " + + "_started is left set so a subsequent StartConsumingAsync fails fast. " + + "Resolve the wedge (process restart) before resuming consumption.", + lifecycleTimeout); + } + + // Each host's DisposeAsync is independently bounded by its own gracefulShutdownTimeout. + // Sequential disposal made aggregate latency O(N * timeout); parallel makes it O(timeout). + // Per-host failures (including any OCE — this dispose path is fire-and-forget cleanup) + // stay isolated via the inner try/catch so a single host's failure cannot short-circuit + // the rest of the disposal via Task.WhenAll's aggregate-exception path. + var disposeTasks = _clients + .Select(async consumer => + { + try + { + await consumer.DisposeAsync().ConfigureAwait(false); + } + catch (Exception ex) + { + _logger.LogWarning(ex, "Failed to dispose consumer host - continuing"); + } + }) + .ToArray(); + + await Task.WhenAll(disposeTasks).ConfigureAwait(false); + // Reset the bag so a subsequent StartConsumingAsync starts from empty; + // otherwise per-cycle entries accumulate and the disposed-host references + // are retained for the lifetime of the Consumer. + _clients.Clear(); + + // Atomically claim ownership of _model and _connection. Two scenarios: + // (a) Startup already wrote the fields: Exchange returns the live instances and we + // dispose them here. Startup's next _disposed check throws OCE; the catch block + // tries Interlocked.Exchange on _connection and finds null (already taken), so + // it skips the double-dispose. + // (b) Startup hasn't written yet: Exchange returns null; we skip dispose. Startup + // writes the field, then immediately checks _disposed, sees 1, throws OCE, and + // its catch block's Interlocked.Exchange claims and disposes the live value. + // The _disposed latch at the top and these atomic claims together ensure both + // directions are covered without requiring the startup/dispose semaphores to be shared. + if (lifecycleAcquired) + { + var modelToClear = Interlocked.Exchange(ref _model, null); + if (modelToClear is { IsOpen: true }) + { + try { await modelToClear.CloseAsync().ConfigureAwait(false); } + catch (Exception ex) { _logger.LogWarning(ex, "Error closing consumer setup channel"); } + } + modelToClear?.Dispose(); + + // Only claim and null the connection field when this Consumer owns it. + // A caller-supplied connection must remain in the field so a subsequent + // StartConsumingAsync cycle can reuse the same instance (it checks _connection + // is null before creating a new one). Caller-owned connections are never disposed here. + IServiceConnectConnection? connectionToDispose = null; + if (_ownsConnection) + { + connectionToDispose = Interlocked.Exchange(ref _connection, null); + // _ownsConnection is set fresh on the next StartConsumingAsync. + } + if (connectionToDispose is not null) + { + await connectionToDispose.DisposeAsync().ConfigureAwait(false); + } + + // Reset _disposed before resetting _started. _started = 0 is the signal that + // allows a new StartConsumingAsync to proceed; resetting _disposed first ensures + // that once _started becomes available, the disposed latch is already clear and + // the new startup will not spuriously see a stale dispose-in-progress signal. + Interlocked.Exchange(ref _disposed, 0); + + // Reset the started flag so a DisposeAsync → StartConsumingAsync sequence remains valid. + Interlocked.Exchange(ref _started, 0); + + // The semaphore is intentionally NOT disposed: a concurrent late-arriving + // dispose call would otherwise observe ObjectDisposedException out of + // WaitAsync. Leaving it un-disposed costs only the un-allocated lazy + // WaitHandle (we never call AvailableWaitHandle) which is reclaimed with the + // Consumer instance. + _disposeSemaphore.Release(); + } + // When lifecycleAcquired is false a wedged DisposeAsync path held the semaphore + // beyond the timeout. _started is left at 1 so a subsequent StartConsumingAsync + // fails fast with InvalidOperationException ("already consuming") rather than + // silently building duplicate state. Operators must resolve the wedge (typically + // process restart) before consumption resumes. + } + + private static Dictionary CoerceToQueueArgs(IReadOnlyDictionary settings, string key) + { + // Accept any dictionary-shaped value; copy into a plain Dictionary<,> so downstream + // mutation and enumeration operate on a concrete, non-read-only instance. Direct casting + // to Dictionary<,> broke for callers using ReadOnlyDictionary / SortedDictionary / + // ImmutableDictionary. + if (!settings.TryGetValue(key, out var raw) || raw is null) + { + return []; + } + + return raw switch + { + Dictionary d => d, + IDictionary id => new Dictionary(id, StringComparer.Ordinal), + IReadOnlyDictionary rd => rd.ToDictionary(kv => kv.Key, kv => kv.Value, StringComparer.Ordinal), + _ => throw new InvalidOperationException( + $"Setting '{key}' must be IDictionary or IReadOnlyDictionary; got {raw.GetType().FullName}."), + }; + } +} diff --git a/src/ServiceConnect.Client.RabbitMQ/Consumer/HeaderValidationResult.cs b/src/ServiceConnect.Client.RabbitMQ/Consumer/HeaderValidationResult.cs new file mode 100644 index 000000000..89703f940 --- /dev/null +++ b/src/ServiceConnect.Client.RabbitMQ/Consumer/HeaderValidationResult.cs @@ -0,0 +1,13 @@ +namespace ServiceConnect.Client.RabbitMQ; + +/// +/// Result of pre-dispatch header validation. Returned by +/// ; on a Reject the validator has already +/// routed the delivery through the terminal-failure path so the host should ack rather than +/// nack-with-requeue. +/// +internal readonly record struct HeaderValidationResult(bool Accepted, string? RejectReason) +{ + public static HeaderValidationResult Accept() => new(true, null); + public static HeaderValidationResult Reject(string reason) => new(false, reason); +} diff --git a/src/ServiceConnect.Client.RabbitMQ/Consumer/IMessageRetryHandler.cs b/src/ServiceConnect.Client.RabbitMQ/Consumer/IMessageRetryHandler.cs new file mode 100644 index 000000000..401d27fd4 --- /dev/null +++ b/src/ServiceConnect.Client.RabbitMQ/Consumer/IMessageRetryHandler.cs @@ -0,0 +1,24 @@ +using RabbitMQ.Client; +using RabbitMQ.Client.Events; + +namespace ServiceConnect.Client.RabbitMQ; + +/// +/// Abstraction over the terminal-failure publish path used by +/// . Exposing only the single method the +/// validator calls keeps the interface narrow and allows the concrete +/// to remain sealed. +/// +internal interface IMessageRetryHandler +{ + /// + /// Routes a permanently-invalid delivery to the error exchange. The caller + /// is responsible for acking the original inbound delivery after this returns. + /// + Task HandleTerminalFailureAsync( + IChannel channel, + BasicDeliverEventArgs args, + Dictionary headers, + Exception ex, + CancellationToken cancellationToken = default); +} diff --git a/src/ServiceConnect.Client.RabbitMQ/Consumer/InboundMessageProcessor.cs b/src/ServiceConnect.Client.RabbitMQ/Consumer/InboundMessageProcessor.cs new file mode 100644 index 000000000..22053d1a2 --- /dev/null +++ b/src/ServiceConnect.Client.RabbitMQ/Consumer/InboundMessageProcessor.cs @@ -0,0 +1,437 @@ +using System.Diagnostics; +using System.Text; +using Microsoft.Extensions.Logging; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Diagnostics; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; + +namespace ServiceConnect.Client.RabbitMQ; + +/// +/// Per-delivery processing pulled out of : builds the +/// dispatch headers, calls the bus-supplied handler delegate, and routes the result to the +/// retry queue, the terminal-failure path, or the audit publisher. Stateless apart from +/// configuration captured at construction; the host owns admission control, ack/nack +/// emission, channel lifecycle, and the shutdown signals (passed in as delegates). +/// +internal sealed class InboundMessageProcessor( + ConsumerEventHandler? consumerEventHandler, + MessageRetryHandler retryHandler, + MessageAuditPublisher auditPublisher, + IQueueConfiguration queueConfiguration, + TimeProvider timeProvider, + ILogger logger, + string retryQueueName, + bool errorsDisabled, + bool deadLetterUnhandledMessages, + bool includeMachineNameInHeaders, + Func shutdownTimedOut, + Func shutdownPublishToken) +{ + private readonly ConsumerEventHandler? _consumerEventHandler = consumerEventHandler; + private readonly MessageRetryHandler _retryHandler = retryHandler; + private readonly MessageAuditPublisher _auditPublisher = auditPublisher; + private readonly IQueueConfiguration _queueConfiguration = queueConfiguration; + private readonly TimeProvider _timeProvider = timeProvider; + private readonly ILogger _logger = logger; + private readonly string _retryQueueName = retryQueueName; + private readonly bool _errorsDisabled = errorsDisabled; + private readonly bool _deadLetterUnhandledMessages = deadLetterUnhandledMessages; + private readonly bool _includeMachineNameInHeaders = includeMachineNameInHeaders; + private readonly Func _shutdownTimedOut = shutdownTimedOut; + private readonly Func _shutdownPublishToken = shutdownPublishToken; + + /// + /// Processes a single inbound delivery. Returns true if the host should ack the message + /// (handler succeeded, or the failure was published to the retry/terminal/error path); + /// false if the message must be nacked back to the broker (shutdown grace expired before + /// the failure-routing publish completed). + /// + /// The dedicated publish channel for retry/audit/error republishes. + /// The raw RabbitMQ delivery event args. + /// + /// The pre-built inbound headers dict. When supplied (the production path), the host has + /// already eagerly-decoded byte[] values and stamped pre-size headroom; this method + /// stamps additional framework headers (Redelivered, TimeReceived, DestinationAddress) + /// in-place. When (unit tests), the dict is built locally. + /// + /// The per-delivery cancellation token. + public async Task ProcessAsync(IChannel publishChannel, BasicDeliverEventArgs args, Dictionary? copiedHeaders, CancellationToken cancellationToken) + { + ConsumeEventResult result; + // Pre-size to incoming header count plus 3 consumer-added entries to avoid rehashes. + // Ordinal comparer matches AMQP's case-sensitive wire contract: a sender that writes + // "X-Trace-Id" reads it back exactly. User filters / middleware look up by string literal. + var headers = copiedHeaders ?? CopyInboundHeadersWithEagerDecode(args); + + if (args.Redelivered) + { + HeaderHelpers.SetHeader(headers, HeaderKeys.Redelivered, true); + } + + try + { + HeaderHelpers.SetHeader(headers, HeaderKeys.TimeReceived, FormatTimestamp(_timeProvider.GetUtcNow().UtcDateTime)); + if (_includeMachineNameInHeaders) + { + HeaderHelpers.SetHeader(headers, HeaderKeys.DestinationMachine, Environment.MachineName); + } + + HeaderHelpers.SetHeader(headers, HeaderKeys.DestinationAddress, _queueConfiguration.QueueName); + + // Prefer FullTypeName; fall back to TypeName. Use TryGetValue to avoid KeyNotFoundException. + // Admission already guarantees at least one is present with a non-null value, but + // FullTypeName could be null-valued while TypeName is valid — check the value. + if (!headers.TryGetValue(HeaderKeys.FullTypeName, out var typeNameRaw) || typeNameRaw is null) + { + headers.TryGetValue(HeaderKeys.TypeName, out typeNameRaw); + } + + string typeName = HeaderDecoder.Decode(typeNameRaw) ?? ""; + + if (_consumerEventHandler == null) + { + _logger.LogError("Consumer event handler not set — message will be nacked for redelivery. Queue: {Queue}", _queueConfiguration.QueueName); + result = new ConsumeEventResult { Success = false, Exception = new InvalidOperationException("Consumer event handler not set; message could not be dispatched.") }; + } + else + { + result = await _consumerEventHandler(args.Body, typeName, headers, cancellationToken).ConfigureAwait(false); + } + + HeaderHelpers.SetHeader(headers, HeaderKeys.TimeProcessed, FormatTimestamp(_timeProvider.GetUtcNow().UtcDateTime)); + } + catch (OperationCanceledException) when (cancellationToken.IsCancellationRequested) + { + // Cooperative cancellation by a well-behaved handler that observed the supplied CT + // (e.g. shutdown grace cancelled _deliveryCts before the drain wait) is NOT a + // retry-worthy handler failure. Propagate so the outer dispatch leaves the message + // unacked for broker redelivery — without this filter the broad catch below would + // burn a retry slot, increment the retry counter, and after max retries route the + // message to the error exchange even though the handler never rejected it. + throw; + } + catch (Exception ex) + { + result = new ConsumeEventResult { Exception = ex, Success = false }; + } + + var shutdownToken = _shutdownPublishToken(); + + if (!result.Success) + { + if (_shutdownTimedOut()) + { + return false; + } + + // Terminal failure (permanently malformed payload — JsonException, NotSupportedException + // from the dispatcher's deserialise path) bypasses the retry queue and goes straight to + // the error exchange. Retrying a poison payload produces the identical failure on every + // attempt; the retry budget would be burned for no benefit and amplify load 3× on + // pathological inputs. Handler-thrown exceptions stay on the retry path — those reflect + // downstream dependencies that may recover. + if (result.TerminalFailure) + { + await HandleTerminalFailureDirectAsync(publishChannel, args, headers, result.Exception, shutdownToken).ConfigureAwait(false); + } + else + { + await HandleHandlerFailureAsync(publishChannel, args, headers, result.Exception, shutdownToken).ConfigureAwait(false); + } + } + else if (result.NotHandled && _deadLetterUnhandledMessages && !_errorsDisabled) + { + if (_shutdownTimedOut()) + { + return false; + } + + if (!headers.TryGetValue(HeaderKeys.FullTypeName, out var typeNameRaw) || typeNameRaw is null) + { + headers.TryGetValue(HeaderKeys.TypeName, out typeNameRaw); + } + + var typeName = HeaderDecoder.Decode(typeNameRaw) ?? ""; + + try + { + await _retryHandler.HandleTerminalFailureAsync( + publishChannel, + args, + headers, + new InvalidOperationException($"No processor handled message of type '{typeName}'."), + shutdownToken).ConfigureAwait(false); + } + catch (OperationCanceledException) when (shutdownToken.IsCancellationRequested) + { + throw; + } + catch (global::RabbitMQ.Client.Exceptions.AlreadyClosedException) + { + throw; + } + catch (global::RabbitMQ.Client.Exceptions.OperationInterruptedException) + { + // Non-ACE channel interruption (e.g. broker-initiated 404/406 surfacing as the + // base type) — propagate so the outer dispatch nacks-with-requeue. The generic + // catch below is for permanent topology faults (unroutable mandatory publish, + // serialization drift); a torn channel must not be classified as permanent. + throw; + } + catch (global::RabbitMQ.Client.Exceptions.BrokerUnreachableException) + { + throw; + } + catch (Exception terminalEx) + { + _logger.LogError(terminalEx, + "Terminal-failure publish failed for MessageId {MessageId} (DeliveryTag {DeliveryTag}) on queue {Queue}; dropping to prevent unbounded redelivery loop.", + args.BasicProperties.MessageId, args.DeliveryTag, _queueConfiguration.QueueName); + } + } + else + { + // Audit is orthogonal to _errorsDisabled — disabling the error/retry/DLQ topology + // must not also disable audit, which is gated separately by + // IQueueConfiguration.AuditingEnabled inside MessageAuditPublisher. The previous + // chain combined the two and silently acked successful messages whenever errors + // were disabled, losing observability without any operator signal. + if (_shutdownTimedOut()) + { + return false; + } + + await PublishAuditWithDropMetricAsync(publishChannel, args, headers, shutdownToken).ConfigureAwait(false); + } + + return !_shutdownTimedOut(); + } + + // Routes a permanently-malformed delivery (set via ConsumeEventResult.TerminalFailure) + // directly to the error exchange, bypassing the retry queue. Transport-class exceptions + // and shutdown-grace-expired OCE re-throw so the outer dispatch nacks-with-requeue and + // the broker redelivers after reconnect. Non-transport publish failures (PublishException + // on a missing error exchange, topology drift) are last-resort dropped with a log to + // prevent unbounded redelivery on a permanently-broken topology. + // + // Note the asymmetry with RabbitMqHeaderValidator.SafePublishTerminalAsync, which swallows + // ALL broker faults (AlreadyClosedException, OperationInterruptedException, + // BrokerUnreachableException, and PublishException). That path handles header-invalid + // messages that can never become valid; they must be acked-and-dropped even when the + // broker is unhealthy to prevent unbounded redelivery of permanently-invalid payloads. + // This path handles handler failures, where the message content is potentially valid and + // redelivery is the correct outcome once the channel recovers — so broker faults propagate + // to trigger the caller's nack-with-requeue path. + private async Task HandleTerminalFailureDirectAsync( + IChannel publishChannel, + BasicDeliverEventArgs args, + Dictionary headers, + Exception? terminalException, + CancellationToken shutdownToken) + { + try + { + await _retryHandler.HandleTerminalFailureAsync( + publishChannel, + args, + headers, + terminalException ?? new InvalidOperationException("Permanently invalid payload."), + shutdownToken).ConfigureAwait(false); + } + catch (OperationCanceledException) when (shutdownToken.IsCancellationRequested) + { + throw; + } + catch (global::RabbitMQ.Client.Exceptions.AlreadyClosedException) + { + throw; + } + catch (global::RabbitMQ.Client.Exceptions.OperationInterruptedException) + { + // Non-ACE channel interruption (e.g. broker-initiated 404/406 surfacing as the + // base type) — propagate so the outer dispatch nacks-with-requeue. The generic + // catch below is for permanent topology faults (unroutable mandatory publish, + // serialization drift); a torn channel must not be classified as permanent. + throw; + } + catch (global::RabbitMQ.Client.Exceptions.BrokerUnreachableException) + { + throw; + } + catch (Exception terminalEx) + { + _logger.LogError(terminalEx, + "Terminal-failure publish for permanently-invalid payload failed for MessageId {MessageId} (DeliveryTag {DeliveryTag}) on queue {Queue}; dropping to prevent unbounded redelivery loop.", + args.BasicProperties.MessageId, args.DeliveryTag, _queueConfiguration.QueueName); + } + } + + // Extracted from ProcessAsync. Routes a handler-failed delivery through the retry queue + // (HandleFailureAsync); on retry-publish failure tries the error exchange as a fallback + // before giving up. Transport-class exceptions and shutdown-grace-expired OCE re-throw so + // the outer dispatch nacks-with-requeue and the broker redelivers after reconnect. + // Non-transport publish failures (typically PublishException on mandatory:true unroutable, + // or topology drift) are last-resort dropped with a counter to prevent unbounded + // redelivery on a permanently-broken topology. + private async Task HandleHandlerFailureAsync( + IChannel publishChannel, + BasicDeliverEventArgs args, + Dictionary headers, + Exception? handlerException, + CancellationToken shutdownToken) + { + try + { + await _retryHandler.HandleFailureAsync( + publishChannel, + _retryQueueName, + args, + headers, + handlerException, + shutdownToken).ConfigureAwait(false); + } + catch (OperationCanceledException) when (shutdownToken.IsCancellationRequested) + { + throw; + } + catch (global::RabbitMQ.Client.Exceptions.AlreadyClosedException) + { + throw; + } + catch (global::RabbitMQ.Client.Exceptions.OperationInterruptedException) + { + // Non-ACE channel interruption (e.g. broker-initiated 404/406 surfacing as the + // base type) — propagate so the outer dispatch nacks-with-requeue. The generic + // catch below is for permanent topology faults (unroutable mandatory publish, + // serialization drift); a torn channel must not be classified as permanent. + throw; + } + catch (global::RabbitMQ.Client.Exceptions.BrokerUnreachableException) + { + throw; + } + catch (Exception retryEx) + { + _logger.LogError(retryEx, + "Retry publish failed for MessageId {MessageId} (DeliveryTag {DeliveryTag}) on queue {Queue}; attempting error-exchange fallback before drop.", + args.BasicProperties.MessageId, args.DeliveryTag, _queueConfiguration.QueueName); + try + { + await _retryHandler.HandleTerminalFailureAsync( + publishChannel, + args, + headers, + // Use the original handler exception so the DLQ Exception header identifies + // the actual handler failure. retryEx is logged separately above so operators + // still see why the retry path failed. + handlerException ?? retryEx, + shutdownToken).ConfigureAwait(false); + } + catch (OperationCanceledException) when (shutdownToken.IsCancellationRequested) + { + throw; + } + catch (global::RabbitMQ.Client.Exceptions.AlreadyClosedException) + { + throw; + } + catch (global::RabbitMQ.Client.Exceptions.OperationInterruptedException) + { + // Non-ACE channel interruption — propagate so the outer dispatch + // nacks-with-requeue. A torn channel must not be classified as a + // permanent fallback failure. + throw; + } + catch (global::RabbitMQ.Client.Exceptions.BrokerUnreachableException) + { + throw; + } + catch (Exception fallbackEx) + { + _logger.LogError(fallbackEx, + "Error-exchange fallback also failed for MessageId {MessageId} (DeliveryTag {DeliveryTag}) on queue {Queue}; dropping to prevent unbounded redelivery loop.", + args.BasicProperties.MessageId, args.DeliveryTag, _queueConfiguration.QueueName); + ServiceConnectMeter.AddRetryDrop(new TagList + { + { "messaging.system", "rabbitmq" }, + { "messaging.destination.name", _queueConfiguration.QueueName }, + { "error.type", ExceptionTypeMapper.Map(fallbackEx) }, + }); + } + } + } + + // Extracted from ProcessAsync to keep the dispatch method under the analyzer's + // length budget. Audit publish failures must not fail message delivery — audit is + // an observability side-effect, not part of the business transaction. A throw + // here would bubble out of ProcessAsync, leave `processed` false in EventAsync, + // and the already-handled message would be nacked with requeue:true → duplicate + // handler invocation. + private async Task PublishAuditWithDropMetricAsync( + IChannel publishChannel, + BasicDeliverEventArgs args, + Dictionary headers, + CancellationToken shutdownToken) + { + try + { + await _auditPublisher.PublishAuditIfEnabledAsync(publishChannel, args, headers, shutdownToken).ConfigureAwait(false); + } + catch (OperationCanceledException) when (shutdownToken.IsCancellationRequested) + { + // Audit is fire-and-forget; shutdown cancellation is expected, not an error. + // Swallow (do NOT rethrow) so the already-handled message gets ack'd. Rethrowing + // would leave processed=false in the caller, the outer finally nacks-with-requeue, + // and the broker redelivers a successfully-handled message → duplicate handler + // invocation. See learn/operations/cancellation: observability paths log Debug + // and continue. + _logger.LogDebug( + "Audit publish cancelled by shutdown for delivery {DeliveryTag}; continuing to ack the original message", + args.DeliveryTag); + } + // Non-cancellation failures are swallowed inside MessageAuditPublisher itself, + // which logs at Warning and increments the messaging.serviceconnect.audit.drops + // counter. Any exception that escapes the publisher should propagate and surface + // as a loud nack rather than be silently swallowed twice. + } + + // Avoid StringBuilder allocation inside DateTime.ToString("O"). + private static string FormatTimestamp(DateTime dt) + { + Span buffer = stackalloc char[33]; // "O" format max length + dt.TryFormat(buffer, out int charsWritten, "O"); + return new string(buffer[..charsWritten]); + } + + // Mirrors RabbitMqConsumerHost.CopyInboundHeaders: eager-decode byte[] headers so + // HeaderDecoder.Decode hits the string fast-path on every downstream read. Pre-size + // is +3 because ProcessAsync stamps Redelivered, TimeReceived, and DestinationAddress + // on top of the caller's headers. + private static Dictionary CopyInboundHeadersWithEagerDecode(BasicDeliverEventArgs args) + { + var sourceHeaders = args.BasicProperties.Headers; + var headers = new Dictionary((sourceHeaders?.Count ?? 4) + 3, StringComparer.Ordinal); + if (sourceHeaders != null) + { + foreach (var kvp in sourceHeaders) + { + if (kvp.Value is null) + { + continue; + } + headers[kvp.Key] = kvp.Value is byte[] bytes + ? Encoding.UTF8.GetString(bytes) + : kvp.Value; + } + } + return headers; + } + + // Test-access surface for the eager-decode helper. Delegating one-liner so the test + // exercises the same code path ProcessAsync uses — no risk of silent drift. + internal static Dictionary CopyInboundHeadersForTests(BasicDeliverEventArgs args) + => CopyInboundHeadersWithEagerDecode(args); +} diff --git a/src/ServiceConnect.Client.RabbitMQ/Consumer/MessageRetryHandler.cs b/src/ServiceConnect.Client.RabbitMQ/Consumer/MessageRetryHandler.cs new file mode 100644 index 000000000..394a72e16 --- /dev/null +++ b/src/ServiceConnect.Client.RabbitMQ/Consumer/MessageRetryHandler.cs @@ -0,0 +1,210 @@ +using System.Diagnostics; +using Microsoft.Extensions.Logging; +using System.Text.Json; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Diagnostics; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Client.RabbitMQ; + +/// +/// Failure-path policy for a RabbitMQ client. Given a failed delivery, either re-publishes +/// the message to the per-queue ".Retries" queue (incrementing the retry counter) or, +/// once max retries are exhausted, publishes to the configured error exchange with +/// redacted exception info in the header. +/// +internal sealed class MessageRetryHandler( + int maxRetries, + string errorExchange, + string consumerQueueName, + ILogger logger, + TimeProvider? timeProvider = null, + bool errorsDisabled = false) : IMessageRetryHandler +{ + private readonly int _maxRetries = maxRetries; + private readonly string _errorExchange = errorExchange ?? throw new ArgumentNullException(nameof(errorExchange)); + private readonly string _consumerQueueName = consumerQueueName ?? throw new ArgumentNullException(nameof(consumerQueueName)); + private readonly ILogger _logger = logger ?? throw new ArgumentNullException(nameof(logger)); + private readonly TimeProvider _timeProvider = timeProvider ?? TimeProvider.System; + private readonly bool _errorsDisabled = errorsDisabled; + + public async Task HandleFailureAsync( + IChannel channel, + string retryQueueName, + BasicDeliverEventArgs args, + Dictionary headers, + Exception? ex, + CancellationToken cancellationToken = default) + { + int retryCount = 0; + if (headers.TryGetValue(HeaderKeys.RetryCount, out var raw)) + { + // int fast-path preserved for performance (native C# producers stamp int). + // Non-.NET clients stamp an AMQP string which arrives as UTF-8 byte[]; use + // HeaderDecoder.Decode so that "3" encoded as byte[] parses correctly. + int candidate; + if (raw is int i) + { + candidate = i; + } + else + { + var decoded = HeaderDecoder.Decode(raw); + candidate = decoded is not null && int.TryParse(decoded, System.Globalization.NumberStyles.Integer, System.Globalization.CultureInfo.InvariantCulture, out var parsed) ? parsed : -1; + } + + if (candidate < 0 || candidate > _maxRetries) + { + // Never silently reset to 0 here — a corrupt or attacker-controlled header + // would otherwise force infinite retries. Route to error so an operator + // can see the malformed value instead of the broker looping forever. + _logger.LogWarning( + "Malformed or out-of-range RetryCount header '{RetryCount}' for MessageId {MessageId}; routing to error exchange.", + raw, args.BasicProperties.MessageId); + await PublishErrorAsync(channel, args, headers, ex, PublishErrorReason.MalformedRetryCountHeader, cancellationToken).ConfigureAwait(false); + return; + } + retryCount = candidate; + } + + if (retryCount < _maxRetries) + { + retryCount++; + HeaderHelpers.SetHeader(headers, HeaderKeys.RetryCount, retryCount); + + // Emitted at the increment site so a counter delta corresponds 1:1 with a retry-queue + // republish, regardless of whether the subsequent BasicPublishAsync ultimately succeeds. + // messaging.destination.name carries the consumer queue (operator filter key); + // messaging.serviceconnect.retry.target carries the per-message retry-queue destination. + ServiceConnectMeter.AddRetryAttempt(new TagList + { + { "messaging.system", "rabbitmq" }, + { "messaging.destination.name", _consumerQueueName }, + { "messaging.serviceconnect.retry.target", retryQueueName }, + }); + + // Explicit copy avoids the BasicProperties copy-constructor's "any malformed + // source field throws" risk. See BasicPropertiesCopier for the full rationale + // and field set; MessageRetryHandlerCopyPropsTests guards against silent + // regressions when RabbitMQ.Client adds new BASIC fields. + var props = BasicPropertiesCopier.CreateCopy(args.BasicProperties, HeaderHelpers.ToNullableHeaders(headers)); + // mandatory:true so publisher confirms surface unroutable returns as PublishException; + // otherwise the broker silently drops the message and we lose the failure signal. + // The catch in InboundMessageProcessor logs Error and acks-to-break-the-loop on PublishException. + await channel.BasicPublishAsync(string.Empty, retryQueueName, true, props, args.Body, cancellationToken).ConfigureAwait(false); + return; + } + + await PublishErrorAsync(channel, args, headers, ex, PublishErrorReason.MaxRetriesExceeded, cancellationToken).ConfigureAwait(false); + } + + public Task HandleTerminalFailureAsync( + IChannel channel, + BasicDeliverEventArgs args, + Dictionary headers, + Exception ex, + CancellationToken cancellationToken = default) + { + return PublishErrorAsync(channel, args, headers, ex, PublishErrorReason.PermanentlyInvalidPayload, cancellationToken); + } + + private async Task PublishErrorAsync( + IChannel channel, + BasicDeliverEventArgs args, + Dictionary headers, + Exception? ex, + PublishErrorReason reason, + CancellationToken cancellationToken) + { + if (ex != null) + { + HeaderHelpers.SetHeader(headers, HeaderKeys.Exception, JsonSerializer.Serialize(new + { + TimeStamp = _timeProvider.GetUtcNow().UtcDateTime, + ExceptionType = ex.GetType().FullName, + Message = HeaderHelpers.GetErrorMessage(ex) + })); + } + + // IQueueConfiguration.DisableErrors=true contract: "failed messages bypass the error + // queue." Honour it here at the single PublishErrorAsync site so every reason path + // (max retries, malformed header, permanently-invalid payload) skips the publish. + // The caller acks the original delivery, the message is dropped, and operators see + // the drop on the dedicated counter rather than the message landing in the error + // queue they explicitly asked us not to use. + if (_errorsDisabled) + { + LogDropDueToErrorsDisabled(reason, ex, args); + ServiceConnectMeter.AddRetryDrop(new TagList + { + { "messaging.system", "rabbitmq" }, + { "messaging.destination.name", _consumerQueueName }, + { "error.type", "errors-disabled" }, + }); + return; + } + + LogPublishToErrorExchange(reason, ex, args); + + // Same field-by-field copy as the retry-publish path — see BasicPropertiesCopier. + var errorProps = BasicPropertiesCopier.CreateCopy(args.BasicProperties, HeaderHelpers.ToNullableHeaders(headers)); + // mandatory:true — see comment in HandleFailureAsync. PublishException on unroutable + // surfaces through the InboundMessageProcessor catch; logged at Error and acked to + // prevent unbounded redelivery. + await channel.BasicPublishAsync(_errorExchange, string.Empty, true, errorProps, args.Body, cancellationToken).ConfigureAwait(false); + } + + private void LogDropDueToErrorsDisabled(PublishErrorReason reason, Exception? ex, BasicDeliverEventArgs args) + { + var messageId = args.BasicProperties.MessageId; + switch (reason) + { + case PublishErrorReason.MaxRetriesExceeded: + _logger.LogWarning(ex, + "Max retries exceeded for MessageId {MessageId}; dropping per DisableErrors=true (no error-queue publish).", + messageId); + break; + case PublishErrorReason.MalformedRetryCountHeader: + _logger.LogWarning(ex, + "Malformed RetryCount header for MessageId {MessageId}; dropping per DisableErrors=true (no error-queue publish).", + messageId); + break; + case PublishErrorReason.PermanentlyInvalidPayload: + _logger.LogWarning(ex, + "Rejecting permanently invalid inbound message with MessageId {MessageId}; dropping per DisableErrors=true (no error-queue publish).", + messageId); + break; + default: + throw new ArgumentOutOfRangeException(nameof(reason), reason, null); + } + } + + private void LogPublishToErrorExchange(PublishErrorReason reason, Exception? ex, BasicDeliverEventArgs args) + { + var messageId = args.BasicProperties.MessageId; + switch (reason) + { + case PublishErrorReason.MaxRetriesExceeded: + if (ex != null) + { + _logger.LogError(ex, "Max retries exceeded for MessageId {MessageId}", messageId); + } + else + { + _logger.LogError("Max retries exceeded for MessageId {MessageId}", messageId); + } + break; + case PublishErrorReason.MalformedRetryCountHeader: + _logger.LogError(ex, + "Malformed RetryCount header for MessageId {MessageId}; routing to error exchange.", + messageId); + break; + case PublishErrorReason.PermanentlyInvalidPayload: + _logger.LogError(ex, "Rejecting permanently invalid inbound message with MessageId {MessageId}", messageId); + break; + default: + throw new ArgumentOutOfRangeException(nameof(reason), reason, null); + } + } +} diff --git a/src/ServiceConnect.Client.RabbitMQ/Consumer/PublishErrorReason.cs b/src/ServiceConnect.Client.RabbitMQ/Consumer/PublishErrorReason.cs new file mode 100644 index 000000000..309922505 --- /dev/null +++ b/src/ServiceConnect.Client.RabbitMQ/Consumer/PublishErrorReason.cs @@ -0,0 +1,18 @@ +namespace ServiceConnect.Client.RabbitMQ; + +/// +/// Why the message is being published to the error exchange. Drives log-message wording so +/// operators can distinguish "retry budget exhausted" from "header corruption" from +/// "permanently invalid payload" at a glance. +/// +internal enum PublishErrorReason +{ + /// Retry counter reached the configured maximum; this is the normal final-attempt path. + MaxRetriesExceeded, + + /// The inbound message's RetryCount header was negative, non-numeric, or above the configured cap. Route to error instead of looping. + MalformedRetryCountHeader, + + /// Payload was rejected at deserialise time (JsonException-class). Retrying produces the same failure; route directly to error. + PermanentlyInvalidPayload, +} diff --git a/src/ServiceConnect.Client.RabbitMQ/Consumer/RabbitMqAdmissionGate.cs b/src/ServiceConnect.Client.RabbitMQ/Consumer/RabbitMqAdmissionGate.cs new file mode 100644 index 000000000..bf045349e --- /dev/null +++ b/src/ServiceConnect.Client.RabbitMQ/Consumer/RabbitMqAdmissionGate.cs @@ -0,0 +1,129 @@ +using System.Diagnostics; +using ServiceConnect.Diagnostics; + +namespace ServiceConnect.Client.RabbitMQ; + +/// +/// Owns the per-host in-flight counter, shutdown gate, and in-flight gauge metric for a +/// single RabbitMQ consumer host. Separated from so the +/// host's EventAsync stays focused on dispatch and ack/nack. +/// +/// +/// Shutdown protocol: callers invoke first, then +/// . rejects new admissions once shutdown +/// begins. The pairing invariant — every successful is followed by +/// exactly one — is the caller's responsibility; the gate's gauge +/// metric balances on that contract (every +1 emit pairs with one -1 emit carrying +/// identical tags). +/// +internal sealed class RabbitMqAdmissionGate(string consumerQueueName) +{ + // The lock guards _inFlight, _shutdownStarted, and _drainTcs together. Increments must + // happen under the same lock that flips _shutdownStarted so a drain that observes + // _shutdownStarted=true can never race with an admission that has already incremented + // but not yet emitted. The metric emit itself runs OUTSIDE the lock to keep the + // critical section short and to avoid reentrancy via MeterListener callbacks. +#if NET9_0_OR_GREATER + private readonly System.Threading.Lock _lock = new(); +#else + private readonly object _lock = new(); +#endif + private readonly string _consumerQueueName = consumerQueueName ?? throw new ArgumentNullException(nameof(consumerQueueName)); + private int _inFlight; + private bool _shutdownStarted; + private TaskCompletionSource? _drainTcs; + + /// True once has been called on this gate. + public bool IsShuttingDown + { + get { lock (_lock) { return _shutdownStarted; } } + } + + // Tag-builder reused by the +1 admission emit and the -1 release emit so the two points + // of the pair carry identical tags. The dimensions match the originals in + // RabbitMqConsumerHost.BuildInFlightTags so the extracted gate is observationally + // identical to the inlined version. + private TagList BuildInFlightTags() => new() + { + { "messaging.system", "rabbitmq" }, + { "messaging.destination.name", _consumerQueueName }, + }; + + /// + /// Attempts to admit a new in-flight delivery. Returns false once shutdown has + /// begun; on success increments the in-flight counter and emits a +1 to the in-flight + /// gauge with the standard messaging tags. + /// + public bool TryAdmit() + { + TagList tags; + lock (_lock) + { + if (_shutdownStarted) + { + return false; + } + _inFlight++; + tags = BuildInFlightTags(); + } + ServiceConnectMeter.AddInFlight(1, tags); + return true; + } + + /// + /// Pairs with a previously successful . Decrements the in-flight + /// counter, emits the matching -1 to the gauge, and — if shutdown has begun and this + /// was the last in-flight delivery — completes any pending . + /// + public void Release() + { + TagList tags; + TaskCompletionSource? drainTcs; + lock (_lock) + { + tags = BuildInFlightTags(); + int remaining = --_inFlight; + // Only signal drain when shutdown is in progress AND we're at zero. This avoids + // pre-creating a TCS for non-shutdown release paths and matches the protocol: + // BeginShutdown then DrainAsync then per-delivery Release. + drainTcs = (_shutdownStarted && remaining == 0) ? _drainTcs : null; + } + ServiceConnectMeter.AddInFlight(-1, tags); + drainTcs?.TrySetResult(); + } + + /// + /// Marks the gate as shutting down so future calls return false. + /// Idempotent — calling twice has no additional effect. + /// + public void BeginShutdown() + { + lock (_lock) + { + _shutdownStarted = true; + } + } + + /// + /// Returns a task that completes once every admitted delivery has been released. + /// Returns immediately if no deliveries are in flight. + /// Honours via . + /// + public Task DrainAsync(CancellationToken cancellationToken) + { + Task drainTask; + lock (_lock) + { + if (_inFlight == 0) + { + return Task.CompletedTask; + } + // RunContinuationsAsynchronously: avoids running the drain caller's continuation + // synchronously inside Release's lock-exit path, which would extend the lock + // hold time for whatever the drain caller chains next. + _drainTcs ??= new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + drainTask = _drainTcs.Task; + } + return drainTask.WaitAsync(cancellationToken); + } +} diff --git a/src/ServiceConnect.Client.RabbitMQ/Consumer/RabbitMqChannelHost.cs b/src/ServiceConnect.Client.RabbitMQ/Consumer/RabbitMqChannelHost.cs new file mode 100644 index 000000000..1435cb001 --- /dev/null +++ b/src/ServiceConnect.Client.RabbitMQ/Consumer/RabbitMqChannelHost.cs @@ -0,0 +1,221 @@ +using Microsoft.Extensions.Logging; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; + +namespace ServiceConnect.Client.RabbitMQ; + +/// +/// Owns the consume channel (Model) and publish channel (PublishChannel) for a +/// single RabbitMqConsumerHost. Encapsulates channel acquisition, shutdown-event +/// subscription, the broker-cancelled flag, and disposal ordering. +/// +/// +/// Channel-shutdown events from the broker (queue deleted, policy expired, peer protocol +/// error) are NOT auto-recovered by RabbitMQ.Client. When a non-Application initiator +/// closes the channel, this class flips the broker-cancelled flag so the consumer host's +/// IsCancelledByBroker accessor and BusConsumingHealthCheck report Unhealthy. Application- +/// initiated shutdown (host DisposeAsync / StopAsync) does NOT flip the flag. +/// +/// The two channels are exposed as nullable properties; callers must null-check before +/// invoking channel operations. Disposal is idempotent; channels are closed in reverse-of- +/// create order (publish channel first so in-flight publishes drain before the consume +/// channel goes away). +/// +internal sealed class RabbitMqChannelHost : IAsyncDisposable +{ + private readonly IServiceConnectConnection _connection; + private readonly ILogger _logger; + private readonly string _queueName; + private IChannel? _model; + private IChannel? _publishChannel; + private int _consumerCancelledByBroker; + private int _disposed; + + internal RabbitMqChannelHost(IServiceConnectConnection connection, ILogger logger, string queueName) + { + _connection = connection ?? throw new ArgumentNullException(nameof(connection)); + _logger = logger ?? throw new ArgumentNullException(nameof(logger)); + _queueName = queueName ?? throw new ArgumentNullException(nameof(queueName)); + } + + /// The consume channel. Null until succeeds; null after disposal. + internal IChannel? Model => _model; + + /// The publish channel. Null until succeeds; null after disposal. + internal IChannel? PublishChannel => _publishChannel; + + /// + /// True if a non-Application channel shutdown fired (broker tore down the channel, e.g. + /// queue deleted, policy expired, peer protocol error), or if the host explicitly + /// reported a broker-initiated basic.cancel via . + /// Cleared by , which the consumer host invokes when + /// RabbitMQ.Client's automatic recovery completes (RecoverySucceededAsync). For + /// permanent broker rejections the recovery event does not fire, so the flag remains + /// latched until disposal. + /// + internal bool IsCancelledByBroker => Volatile.Read(ref _consumerCancelledByBroker) != 0; + + /// + /// Sets the broker-cancelled flag. Called by the consumer host when the broker issues + /// a basic.cancel against the consumer (queue deleted, policy expired, mirror promoted). + /// Idempotent — repeated calls are no-ops. + /// + internal void NotifyBrokerCancelled() + => Interlocked.Exchange(ref _consumerCancelledByBroker, 1); + + /// + /// Resets the broker-cancelled flag. Called by the consumer host when RabbitMQ.Client's + /// automatic recovery has successfully restored the connection and re-declared the consumer + /// (RecoverySucceededAsync event). Idempotent — calling on an already-unset flag + /// is a no-op. + /// + internal void NotifyRecoverySucceeded() + => Interlocked.Exchange(ref _consumerCancelledByBroker, 0); + + /// + /// Removes the channel-shutdown event subscriptions without closing or disposing the channels. + /// Call this before issuing BasicCancelAsync during a graceful stop so a stale-tag protocol + /// error (Library-initiator channel close) cannot flip IsCancelledByBroker on an intentional + /// shutdown. DisposeAsync unsubscribes again idempotently; the delegate removal is a no-op + /// if the handler is not currently subscribed. + /// + internal void UnsubscribeShutdownHandlers() + { + // IDE0031 wants `_model?.ChannelShutdownAsync -= …`, but null-conditional compound + // assignment is a C# 14 feature and this file also compiles under net8.0/C# 12, so + // the suggested rewrite is unavailable on that TFM. Suppress at the call sites. +#pragma warning disable IDE0031 + if (_model is not null) + { + _model.ChannelShutdownAsync -= OnChannelShutdownAsync; + } + if (_publishChannel is not null) + { + _publishChannel.ChannelShutdownAsync -= OnPublishChannelShutdownAsync; + } +#pragma warning restore IDE0031 + } + + /// + /// Opens the consume + publish channels and subscribes the shutdown event handlers. + /// Idempotent on success — repeated calls return the already-open channels without + /// re-opening. + /// + internal async Task OpenAsync(CancellationToken cancellationToken) + { + if (_model is not null && _publishChannel is not null) + { + return; + } + + _model = await _connection.CreateChannelAsync(cancellationToken).ConfigureAwait(false); + // Dedicated publish channel for retry/audit/error; kept separate from the + // consumer channel because RabbitMQ.Client is not safe to use concurrently on + // a single channel. Publisher confirms ensure BasicPublishAsync awaits the + // broker ack before returning, so a lost retry/audit/error publish surfaces as + // an exception on the consumer path instead of silently disappearing. + var publishChannelOptions = new CreateChannelOptions( + publisherConfirmationsEnabled: true, + publisherConfirmationTrackingEnabled: true); + _publishChannel = await _connection.CreateChannelAsync(publishChannelOptions, cancellationToken).ConfigureAwait(false); + + _model.ChannelShutdownAsync += OnChannelShutdownAsync; + // Publish channel needs an independent shutdown subscriber: RabbitMQ.Client does + // NOT auto-recreate channels closed by a broker protocol error (404 NOT_FOUND on a + // deleted retry/error exchange, 406 PRECONDITION_FAILED on topology drift). Without + // this hook a dead publish channel goes unobserved, retry/audit/terminal-failure + // publishes throw AlreadyClosedException on every delivery, the host nacks-with-requeue, + // and the broker hot-loops the same delivery against the same dead channel. + _publishChannel.ChannelShutdownAsync += OnPublishChannelShutdownAsync; + } + + private Task OnChannelShutdownAsync(object? sender, ShutdownEventArgs args) + { + // Broker- or peer-initiated channel close (e.g. queue deleted via management UI; + // 404/406 against the consumer channel) is NOT auto-recovered by RabbitMQ.Client + // and consumption stops silently otherwise. Flip the broker-cancelled flag so + // BusConsumingHealthCheck and ConsumerConnectionHealthCheck flip Unhealthy and + // operators see the failure rather than green-dashboarding a stalled consumer. + // ShutdownInitiator.Application is our own DisposeAsync / StopAsync — those must + // not flip the flag (they're intentional shutdown, not broker cancellation). + if (args.Initiator != ShutdownInitiator.Application) + { + Interlocked.Exchange(ref _consumerCancelledByBroker, 1); + } + _logger.LogWarning( + "AMQP channel shutdown for queue '{Queue}': {ReplyCode} {ReplyText} (initiator: {Initiator})", + _queueName, args.ReplyCode, args.ReplyText, args.Initiator); + return Task.CompletedTask; + } + + private Task OnPublishChannelShutdownAsync(object? sender, ShutdownEventArgs args) + { + // Publish channel close is invisible to the consumer's IsConsuming/IsCancelledByBroker + // chain unless we explicitly raise it. A non-Application close means the broker (or + // peer protocol error) tore the channel down; downstream retry/audit publishes will + // throw AlreadyClosedException and the message gets nacked-with-requeue forever. + // Flip the broker-cancelled flag so the health checks surface the failure and the + // pod is removed from rotation rather than burning CPU on a redelivery hot-loop. + if (args.Initiator != ShutdownInitiator.Application) + { + Interlocked.Exchange(ref _consumerCancelledByBroker, 1); + } + _logger.LogWarning( + "AMQP publish-channel shutdown for queue '{Queue}': {ReplyCode} {ReplyText} (initiator: {Initiator})", + _queueName, args.ReplyCode, args.ReplyText, args.Initiator); + return Task.CompletedTask; + } + + public ValueTask DisposeAsync() => DisposeAsync(CancellationToken.None); + + /// + /// Disposes channels with an optional deadline token. Passing a pre-cancelled or + /// deadline-expiry token causes any stalled CloseAsync to be abandoned, + /// preserving the consumer host's graceful-shutdown grace window. + /// + internal async ValueTask DisposeAsync(CancellationToken cancellationToken) + { + if (Interlocked.Exchange(ref _disposed, 1) != 0) + { + return; + } + + // Unsubscribe shutdown handlers BEFORE close so a late shutdown signal doesn't fire + // OnXxxShutdownAsync against a half-disposed host. Close in reverse-of-create order: + // publish channel first (so in-flight retry/audit publishes drain cleanly before the + // consume channel closes), then the consume channel. + if (_publishChannel is not null) + { + _publishChannel.ChannelShutdownAsync -= OnPublishChannelShutdownAsync; + // Race close against the deadline token. Task.Delay(Infinite, ct) completes + // when ct fires, so a stalled CloseAsync (broker unresponsive, mock in tests) + // doesn't block disposal beyond the caller's grace window. + try + { + await Task.WhenAny( + _publishChannel.CloseAsync(200, "Goodbye", false, cancellationToken), + Task.Delay(Timeout.Infinite, cancellationToken)).ConfigureAwait(false); + } + catch { /* already-closed and deadline-cancelled close are both expected on teardown */ } + try { await _publishChannel.DisposeAsync().ConfigureAwait(false); } + catch { /* swallow any dispose-time error so model close still runs */ } + _publishChannel = null; + } + + if (_model is not null) + { + _model.ChannelShutdownAsync -= OnChannelShutdownAsync; + // Same deadline-race as publish channel above. + try + { + await Task.WhenAny( + _model.CloseAsync(200, "Goodbye", false, cancellationToken), + Task.Delay(Timeout.Infinite, cancellationToken)).ConfigureAwait(false); + } + catch { /* already-closed and deadline-cancelled close are both expected on teardown */ } + try { await _model.DisposeAsync().ConfigureAwait(false); } + catch { /* swallow any dispose-time error */ } + _model = null; + } + } +} diff --git a/src/ServiceConnect.Client.RabbitMQ/Consumer/RabbitMqConsumerHost.cs b/src/ServiceConnect.Client.RabbitMQ/Consumer/RabbitMqConsumerHost.cs new file mode 100644 index 000000000..350f05316 --- /dev/null +++ b/src/ServiceConnect.Client.RabbitMQ/Consumer/RabbitMqConsumerHost.cs @@ -0,0 +1,950 @@ +using System.Linq; +using System.Text; +using Microsoft.Extensions.Logging; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; + +namespace ServiceConnect.Client.RabbitMQ; + +/// +/// Owns the RabbitMQ channel, consumer, and ack/nack lifecycle for a single queue. +/// Delegates failure-path policy to and success-path +/// audit publish to . +/// +internal sealed class RabbitMqConsumerHost : IAsyncDisposable +{ + private readonly IServiceConnectConnection _connection; + private readonly IQueueConfiguration _queueConfiguration; + private readonly MessageRetryHandler _retryHandler; + private readonly RabbitMqAdmissionGate _admissionGate; + private readonly RabbitMqHeaderValidator _validator; + private readonly RabbitMqDispatchPipeline _dispatch; + private readonly MessageAuditPublisher _auditPublisher; + private readonly ILogger _logger; + private readonly TimeProvider _timeProvider; + + // Inbound header count and per-value size limits prevent resource exhaustion. + private const int DefaultMaxHeaderCount = 64; + private const int DefaultMaxHeaderValueBytes = 8192; + + private readonly bool _errorsDisabled; + private readonly ushort _prefetchCount; + private readonly bool _disablePrefetch; + private readonly IDictionary _queueArguments; + private readonly int _gracefulShutdownTimeoutMs; + private readonly bool _includeMachineNameInHeaders; + private readonly bool _deadLetterUnhandledMessages; + private readonly long _maxInboundMessageSize; + private readonly int _maxHeaderCount; + private readonly int _maxHeaderValueBytes; + + private readonly RabbitMqChannelHost _channelHost; + private ConsumerEventHandler? _consumerEventHandler; + // Per-delivery dispatcher (handler invocation + retry/terminal/audit routing) — built + // in StartConsumingAsync once the queue / retry-queue names are known. The host owns + // admission, ack/nack, and lifecycle; the processor is the pure "given a delivery, + // process and route it" operation. + private InboundMessageProcessor? _messageProcessor; + private AsyncEventingBasicConsumer? _consumer; + // RabbitMQ.Client auto-recovery may re-issue BasicConsumeAsync on reconnect with a + // different consumer tag. We subscribe to IConnection.ConsumerTagChangeAfterRecoveryAsync + // to keep _consumerTag current, so a later BasicCancelAsync during DisposeAsync targets + // the live consumer rather than a stale tag that no longer exists on the broker. + private string? _consumerTag; + // Captured at subscribe time so DisposeAsync can `-=` the SAME delegate instance + // off AsyncEventingBasicConsumer.ReceivedAsync. The other broker-event handlers + // are method-group references (the unsubscribe binds against the same MethodInfo + // by identity), but the ReceivedAsync subscription is a lambda — without holding + // a reference we cannot remove it on dispose, leaking the host reference until + // the AsyncEventingBasicConsumer itself is collected. + private AsyncEventHandler? _receivedHandler; + private bool _autoDelete; + private string _queueName = ""; + private string _retryQueueName = ""; + private int _shutdownTimedOut; + // Defends against concurrent DisposeAsync calls. The admission gate's BeginShutdown is + // idempotent under its own lock, but two concurrent disposes could both pass the + // IsShuttingDown check before either calls BeginShutdown, then both run teardown. + // CompareExchange ensures exactly one dispose proceeds; the other returns early. + private int _disposeStarted; + + // CAS gate for StopAsync. The graceful-stop flow (BasicCancel + drain) is idempotent + // at each step, but the wrapper guard keeps repeated calls cheap and avoids redundant + // log warnings on re-cancel attempts. + private int _stopStarted; + // Single-use guard: PrepareAsync may run at most once per host instance. The host is + // documented as single-use (matches Consumer.cs's "fresh host per StartConsumingAsync" + // pattern). A second Prepare would need to also reset _admissionGate (readonly) and + // _stopStarted — neither of which currently resets, so the second cycle would silently + // drop every delivery via the latched admission gate. Single-use makes the constraint + // explicit and surfaces misuse loudly. + private int _prepared; + private readonly CancellationTokenSource _shutdownPublishCts = new(); + // Consumer-lifetime token: created at StartConsumingAsync, cancelled on DisposeAsync. + // Delivery callbacks hand this to handlers so they observe *consumer* teardown rather + // than whatever startup CT the caller happened to pass — a startup-scoped token can be + // cancelled post-startup and would break every later delivery if captured by the callback. + private readonly CancellationTokenSource _deliveryCts = new(); + // Captured token value: the struct remains usable after _deliveryCts.Dispose(), whereas + // accessing _deliveryCts.Token would throw ObjectDisposedException. A late delivery + // fired after DisposeAsync has disposed the CTS must still be able to observe cancellation. + private CancellationToken _deliveryToken; + // Captured at subscribe time so DisposeAsync can unsubscribe against the SAME IConnection + // reference. Re-fetching _connection.UnderlyingConnection at unsubscribe time would return + // null after the parent Connection's DisposeAsync nulls _connection, leaking these handlers + // on the original IConnection until GC reclaims it. + private global::RabbitMQ.Client.IConnection? _subscribedUnderlyingConnection; + + public RabbitMqConsumerHost( + IServiceConnectConnection connection, + ITransportConfiguration transportConfiguration, + IQueueConfiguration queueConfiguration, + IBusConfiguration busConfiguration, + MessageRetryHandler retryHandler, + RabbitMqAdmissionGate admissionGate, + MessageAuditPublisher auditPublisher, + ILogger logger, + TimeProvider? timeProvider = null) + { + _connection = connection ?? throw new ArgumentNullException(nameof(connection)); + _queueConfiguration = queueConfiguration ?? throw new ArgumentNullException(nameof(queueConfiguration)); + _retryHandler = retryHandler ?? throw new ArgumentNullException(nameof(retryHandler)); + _admissionGate = admissionGate ?? throw new ArgumentNullException(nameof(admissionGate)); + _auditPublisher = auditPublisher ?? throw new ArgumentNullException(nameof(auditPublisher)); + _logger = logger ?? throw new ArgumentNullException(nameof(logger)); + _timeProvider = timeProvider ?? TimeProvider.System; + ArgumentNullException.ThrowIfNull(transportConfiguration); + ArgumentNullException.ThrowIfNull(busConfiguration); + + // Extract configuration in the constructor and make the fields readonly. + _includeMachineNameInHeaders = busConfiguration.IncludeMachineNameInHeaders; + _deadLetterUnhandledMessages = busConfiguration.DeadLetterUnhandledMessages; + + var settings = transportConfiguration.ClientSettings; + _errorsDisabled = queueConfiguration.DisableErrors; + _autoDelete = settings.TryGetValue(RabbitMQSettingKeys.AutoDelete, out var autoDeleteVal) && (bool)autoDeleteVal; + _prefetchCount = settings.TryGetValue(RabbitMQSettingKeys.PrefetchCount, out var prefetchVal) + ? Convert.ToUInt16(prefetchVal, System.Globalization.CultureInfo.InvariantCulture) + : transportConfiguration.PrefetchCount; + _disablePrefetch = settings.TryGetValue(RabbitMQSettingKeys.DisablePrefetch, out var disablePrefetchVal) && (bool)disablePrefetchVal; + _queueArguments = CoerceToQueueArgs(settings, RabbitMQSettingKeys.Arguments); + _gracefulShutdownTimeoutMs = transportConfiguration.GracefulShutdownTimeoutMilliseconds > 0 + ? transportConfiguration.GracefulShutdownTimeoutMilliseconds + : 5000; + _maxInboundMessageSize = settings.TryGetValue(RabbitMQSettingKeys.MessageSize, out var maxSizeVal) + ? Convert.ToInt64(maxSizeVal, System.Globalization.CultureInfo.InvariantCulture) + : 64 * 1024; + _maxHeaderCount = settings.TryGetValue(RabbitMQSettingKeys.MaxHeaderCount, out var maxHeaderCountVal) + ? Convert.ToInt32(maxHeaderCountVal, System.Globalization.CultureInfo.InvariantCulture) + : DefaultMaxHeaderCount; + _maxHeaderValueBytes = settings.TryGetValue(RabbitMQSettingKeys.MaxHeaderValueBytes, out var maxHeaderValueBytesVal) + ? Convert.ToInt32(maxHeaderValueBytesVal, System.Globalization.CultureInfo.InvariantCulture) + : DefaultMaxHeaderValueBytes; + + _channelHost = new RabbitMqChannelHost(_connection, _logger, _queueConfiguration.QueueName); + + // Constructed inside the host (not Consumer.cs) because the validator needs + // GetShutdownPublishToken — a method on the host whose backing CTS lifetime + // matches the host's single-use cycle. Injecting a delegate keeps the host + // as the single owner of the CTS without exposing it externally. + _validator = new RabbitMqHeaderValidator( + retryHandler, + _maxInboundMessageSize, + _maxHeaderCount, + _maxHeaderValueBytes, + GetShutdownPublishToken, + logger); + + // Constructed inside the host for the same reason as the validator: the dispatch + // pipeline's channel-state guards query host-managed flags (_shutdownTimedOut and + // _admissionGate.IsShuttingDown). Delegate injection keeps the host as the single + // owner of those flags while the dispatch class drives the per-delivery ack/nack. + _dispatch = new RabbitMqDispatchPipeline( + queueConfiguration.QueueName, + shutdownTimedOutQuery: () => Volatile.Read(ref _shutdownTimedOut) != 0, + shutdownStartedQuery: () => _admissionGate.IsShuttingDown, + logger); + } + + /// + /// Sets up the consumer channel, publish channel, message processor, and broker-event subscriptions. + /// Does NOT call BasicConsumeAsync — the caller must invoke + /// for any required bindings, then to start consuming. + /// + /// + /// Each host instance is single-use: may be called at most once. + /// Multiple consumers are supported by allocating a fresh + /// per StartConsumingAsync call (the pattern used by Consumer.cs). A second + /// call throws . + /// + /// The host has already been prepared. + public async Task PrepareAsync( + ConsumerEventHandler messageReceived, string queueName, + bool? autoDelete = null, CancellationToken cancellationToken = default) + { + if (Interlocked.CompareExchange(ref _prepared, 1, 0) != 0) + { + throw new InvalidOperationException( + "RabbitMqConsumerHost.PrepareAsync may only be called once per instance. The host is single-use; allocate a fresh instance for each consumer lifecycle."); + } + + _consumerEventHandler = messageReceived; + _queueName = queueName; + _retryQueueName = queueName + RabbitMqQueueNaming.RetryQueueSuffix; + + if (autoDelete.HasValue) + { + _autoDelete = autoDelete.Value; + } + + await _channelHost.OpenAsync(cancellationToken).ConfigureAwait(false); + if (!_disablePrefetch) + { + await _channelHost.Model!.BasicQosAsync(0, _prefetchCount, false).ConfigureAwait(false); + } + + _deliveryToken = _deliveryCts.Token; + _messageProcessor = new InboundMessageProcessor( + _consumerEventHandler, + _retryHandler, + _auditPublisher, + _queueConfiguration, + _timeProvider, + _logger, + _retryQueueName, + _errorsDisabled, + _deadLetterUnhandledMessages, + _includeMachineNameInHeaders, + shutdownTimedOut: () => Volatile.Read(ref _shutdownTimedOut) != 0, + shutdownPublishToken: () => _shutdownPublishCts.Token); + // The lambda captures the delivery *token* (not _deliveryCts.Token accessor) so a + // late delivery fired after DisposeAsync disposed the CTS can still run without + // throwing ObjectDisposedException from the Token property. + var deliveryToken = _deliveryToken; + _consumer = new AsyncEventingBasicConsumer(_channelHost.Model!); + _receivedHandler = async (sender, args) => await EventAsync(sender, args, deliveryToken).ConfigureAwait(false); + _consumer.ReceivedAsync += _receivedHandler; + // Subscribe broker-initiated shutdown events so a queue deletion, channel close, + // or connection-level event is observed and logged rather than silently stalling consumption. + // ShutdownAsync fires on channel shutdown (both client- and server-initiated). + // UnregisteredAsync fires on broker-initiated basic.cancel (e.g. queue deleted while consuming). + _consumer.ShutdownAsync += OnConsumerShutdownAsync; + _consumer.UnregisteredAsync += OnConsumerUnregisteredAsync; + _subscribedUnderlyingConnection = _connection.UnderlyingConnection; + if (_subscribedUnderlyingConnection is not null) + { + _subscribedUnderlyingConnection.ConnectionShutdownAsync += OnConnectionShutdownAsync; + _subscribedUnderlyingConnection.ConnectionBlockedAsync += OnConnectionBlockedAsync; + _subscribedUnderlyingConnection.ConnectionUnblockedAsync += OnConnectionUnblockedAsync; + } + } + + /// + /// Issues the BasicConsumeAsync that puts this host into the actively-consuming state. + /// MUST be called AFTER all bindings are complete — + /// running QueueBindAsync on the consumer channel after BasicConsume violates RabbitMQ.Client's + /// per-channel serialisation contract. + /// + public async Task BeginConsumingAsync(CancellationToken cancellationToken = default) + { + if (_channelHost.Model == null || _consumer == null) + { + throw new InvalidOperationException("PrepareAsync must be called before BeginConsumingAsync."); + } + + // Subscribe to the consumer-tag recovery event BEFORE BasicConsumeAsync. RabbitMQ.Client + // auto-recovery may fire between the BasicConsumeAsync return and a later subscribe call, + // changing the broker-assigned tag without us knowing. Subscribing first means tag + // changes are observed live by the handler. The handler matches on TagBefore == _consumerTag, + // so the very-first invocation (where _consumerTag is still null) is a safe no-op. + SubscribeToConsumerTagRecovery(); + // Subscribe to the connection-level recovery event so the channel host's broker-cancelled + // flag is cleared when auto-recovery restores the consumer. Without this the flag latches + // forever on a transient broker outage and BusConsumingHealthCheck reports Unhealthy + // even though deliveries have resumed. + SubscribeToRecoveryReset(); + + // Volatile.Write so a later acquire-fenced read in Stop/Dispose (or in the recovery + // handler) observes the initial tag without depending on the ambient ordering of the + // BasicConsumeAsync await's continuation. + Volatile.Write(ref _consumerTag, await _channelHost.Model!.BasicConsumeAsync(_queueName, false, "", false, false, null, _consumer, cancellationToken).ConfigureAwait(false)); + _logger.LogDebug("Started consuming on {QueueName}, tag={ConsumerTag}", _queueName, _consumerTag); + } + + /// + /// Backward-compatible shorthand: followed by . + /// Bind any per-message-type queues via BETWEEN these two calls + /// to honour RabbitMQ.Client's per-channel serialisation contract. + /// + public async Task StartConsumingAsync( + ConsumerEventHandler messageReceived, string queueName, + bool? autoDelete = null, CancellationToken cancellationToken = default) + { + await PrepareAsync(messageReceived, queueName, autoDelete, cancellationToken).ConfigureAwait(false); + await BeginConsumingAsync(cancellationToken).ConfigureAwait(false); + } + + public async Task ConsumeMessageTypeAsync(string messageTypeName, CancellationToken cancellationToken = default) + { + cancellationToken.ThrowIfCancellationRequested(); + await _channelHost.Model!.QueueBindAsync(_queueName, messageTypeName, string.Empty, null, cancellationToken: cancellationToken).ConfigureAwait(false); + } + + /// + /// True once the broker has issued a basic.cancel against this host's consumer + /// (queue deleted, policy expired, mirror promoted). Aggregated by + /// and surfaced through so BusConsumingHealthCheck + /// flips to Unhealthy without needing its own broker-cancel logic. + /// + internal bool IsCancelledByBroker => _channelHost.IsCancelledByBroker; + + /// + /// Drives a delivery directly through the admission and processing pipeline. + /// Exposed so unit tests can exercise the full EventAsync path without going through + /// the RabbitMQ broker. Named deliberately so follow-on tests can find it by convention. + /// + internal Task RaiseDeliveryForTests(BasicDeliverEventArgs args, CancellationToken ct = default) + => EventAsync(this, args, ct); + + // Small orchestrator: admit → validate → dispatch → release. The metric-instrumented + // handler invocation, ack/nack against the model channel, and ack/nack failure logging + // all live in RabbitMqDispatchPipeline. + private async Task EventAsync(object _, BasicDeliverEventArgs args, CancellationToken cancellationToken) + { + // Reject before doing any per-delivery work if shutdown has begun: the gate is the + // single source of truth for admission. A return here is the "drop" path; the + // broker will redeliver this delivery on the next consumer start. + if (!_admissionGate.TryAdmit()) + { + return; + } + + // Capture channels before any await so that a concurrent DisposeAsync cannot + // null them out from under the dispatch pipeline. The pipeline's AckOrNackAsync + // tolerates a null model (logs at Debug, does not ack). + var model = _channelHost.Model; + var publishChannel = _channelHost.PublishChannel; + + try + { + // CopyInboundHeaders is a pure allocate-and-copy with no side effects, so + // hoisting the call out of each rule's rejection block is semantically equivalent. + // The validator routes a rejection through the terminal-failure path; we then + // ack the broker delivery (processed=true), since redelivery would re-trigger + // the same rule. The same dict is threaded through to ProcessAsync below so the + // dispatch hot path does not re-build it (with N redundant UTF-8 decodes of every + // byte[] header value per delivery). + var copiedHeaders = CopyInboundHeaders(args); + var validation = await _validator.ValidateAsync(args, publishChannel!, copiedHeaders, cancellationToken).ConfigureAwait(false); + if (!validation.Accepted) + { + await _dispatch.AckOrNackAsync(model, args, processed: true).ConfigureAwait(false); + return; + } + + var messageProcessor = _messageProcessor; + if (messageProcessor == null) + { + _logger.LogWarning("Message processor not initialised — message {DeliveryTag} will be nacked for redelivery", args.DeliveryTag); + await _dispatch.AckOrNackAsync(model, args, processed: false).ConfigureAwait(false); + return; + } + + await _dispatch.DispatchAndAckAsync(messageProcessor, model, publishChannel!, args, copiedHeaders, cancellationToken).ConfigureAwait(false); + } + catch (Exception ex) + { + // Catches admission/header-validation failures that didn't reach the metric-instrumented + // ProcessAsync scope (e.g. _retryHandler.HandleTerminalFailureAsync throwing). Without + // this an uncaught exception would propagate into the AMQP consumer event loop. The + // delivery is nacked-with-requeue so the broker redelivers it once the validator's + // dependency (typically the publish channel) recovers. + _logger.LogError(ex, "Error processing message"); + try + { + await _dispatch.AckOrNackAsync(model, args, processed: false).ConfigureAwait(false); + } + catch (Exception nackEx) + { + // AckOrNackAsync swallows its own broker-level errors via LogAckOrNackFailure, + // so anything that escapes here is a programmer error in the pipeline. Logging + // it (rather than letting it bubble) keeps the AMQP consumer loop alive. + _logger.LogError(nackEx, "Error nacking message after validation failure"); + } + } + finally + { + // Release pairs with the TryAdmit at the top: the gate's invariant is exactly one + // Release per successful TryAdmit. The pre-finally returns above all happen AFTER + // admission, so they fall through to this finally. + _admissionGate.Release(); + } + } + + private static Dictionary CopyInboundHeaders(BasicDeliverEventArgs args) + { + var sourceHeaders = args.BasicProperties.Headers; + // Pre-size +4 to cover the framework stamps that InboundMessageProcessor.ProcessAsync + // adds downstream (Redelivered, TimeReceived, DestinationMachine, DestinationAddress). + // Without the headroom the dict rehashes once on the dispatch hot path. + var headers = new Dictionary((sourceHeaders?.Count ?? 0) + 4, StringComparer.Ordinal); + if (sourceHeaders != null) + { + foreach (var kvp in sourceHeaders) + { + if (kvp.Value is null) + { + continue; + } + // Eagerly decode AMQP byte[] header values to UTF8 strings. The existing + // HeaderDecoder.Decode string fast-path then short-circuits every downstream + // decode (dispatcher, processors, telemetry, filters, middleware, handlers), + // each of which currently re-runs Encoding.UTF8.GetString on the same bytes. + // Typed values (bool, int, IDictionary, IEnumerable) stay as objects so + // HeaderDecoder.Render still handles them on demand. + headers[kvp.Key] = kvp.Value is byte[] bytes + ? Encoding.UTF8.GetString(bytes) + : kvp.Value; + } + } + + return headers; + } + + // Test-access surface: mirrors the production copy so unit tests can assert the eager-decode + // invariant without driving the full consumer-host pipeline. internal for [InternalsVisibleTo]. + internal static Dictionary CopyInboundHeadersForTests(BasicDeliverEventArgs args) + => CopyInboundHeaders(args); + + private CancellationToken GetShutdownPublishToken() + { + return _shutdownPublishCts.Token; + } + + // Broker-initiated shutdown event handlers. + + private Task OnConsumerShutdownAsync(object? sender, ShutdownEventArgs args) + { + _logger.LogWarning( + "AMQP consumer '{ConsumerTag}' shutdown: {ReplyCode} {ReplyText}", + _consumerTag, args.ReplyCode, args.ReplyText); + return Task.CompletedTask; + } + + private Task OnConsumerUnregisteredAsync(object? sender, ConsumerEventArgs args) + { + HandleConsumerUnregistered(args); + return Task.CompletedTask; + } + + /// + /// Test seam: synchronous body of . + /// Exposed as internal so unit tests can drive the handler with synthetic + /// without needing to invoke the consumer's + /// async event delegate through reflection. + /// + /// + /// Stale events from prior chaos cycles can land AFTER topology recovery has + /// re-issued BasicConsumeAsync with a new tag. RabbitMQ.Client's async + /// event dispatch does not strictly order UnregisteredAsync against + /// RecoverySucceededAsync, so a late unregistered notification for a + /// tag we no longer own can clobber the post-recovery healthy state. The + /// live-tag gate compares args.ConsumerTags against + /// ; an event for a tag we don't own is observational + /// only and does not flip the channel host's cancelled flag. + /// + internal void HandleConsumerUnregistered(ConsumerEventArgs args) + { + var liveTag = Volatile.Read(ref _consumerTag); + if (!string.IsNullOrEmpty(liveTag) + && args.ConsumerTags is { Length: > 0 } tags + && !tags.Contains(liveTag, StringComparer.Ordinal)) + { + _logger.LogDebug( + "Ignoring stale AMQP consumer unregistered event on queue '{Queue}' for tags [{StaleTags}]; live tag is '{LiveTag}'", + _queueName, + string.Join(", ", tags), + liveTag); + return; + } + + // Set the flag *before* logging so a downstream health probe racing with the log call + // observes Unhealthy on the same tick the operator first sees the warning. + _channelHost.NotifyBrokerCancelled(); + _logger.LogWarning( + "AMQP consumer '{ConsumerTag}' unregistered by broker (broker-initiated shutdown) on queue '{Queue}'; reporting unhealthy via BusConsumingHealthCheck", + _consumerTag, _queueName); + } + + private Task OnConnectionShutdownAsync(object? sender, ShutdownEventArgs args) + { + _logger.LogWarning( + "AMQP connection shutdown for queue '{Queue}': {ReplyCode} {ReplyText}", + _queueName, args.ReplyCode, args.ReplyText); + return Task.CompletedTask; + } + + private Task OnConnectionBlockedAsync(object? sender, ConnectionBlockedEventArgs args) + { + _logger.LogWarning( + "AMQP connection blocked for queue '{Queue}': {Reason}", + _queueName, args.Reason); + return Task.CompletedTask; + } + + private Task OnConnectionUnblockedAsync(object? sender, AsyncEventArgs args) + { + _logger.LogInformation( + "AMQP connection unblocked for queue '{Queue}'", + _queueName); + return Task.CompletedTask; + } + + private void SubscribeToConsumerTagRecovery() + { + // _subscribedUnderlyingConnection was populated by PrepareAsync; reuse the same captured + // reference here so the matching unsubscribe in DisposeAsync targets the right instance. + // + // IDE0031's `?.E += h` rewrite needs C# 14 null-conditional compound assignment; this + // file also compiles under net8.0/C# 12, so the rewrite is unavailable there. +#pragma warning disable IDE0031 + if (_subscribedUnderlyingConnection is not null) + { + _subscribedUnderlyingConnection.ConsumerTagChangeAfterRecoveryAsync += OnConsumerTagChangedAfterRecoveryAsync; + } +#pragma warning restore IDE0031 + } + + private void SubscribeToRecoveryReset() + { + // RecoverySucceededAsync fires after RabbitMQ.Client's auto-recovery has reconnected + // the connection AND topology recovery has re-declared the consumer (queue + bindings + // + BasicConsumeAsync). On a transient broker outage the earlier channel shutdown set + // _channelHost.IsCancelledByBroker; without this reset the flag latches forever and + // IBus.IsConsuming / BusConsumingHealthCheck stay Unhealthy even though delivery has + // resumed. Permanent rejections (queue truly deleted) won't fire this event because + // topology recovery fails, so the flag remains latched for that case — preserving + // the original "operator alerts on real broker-side cancellation" semantics. + // + // ConsumerTagChangeAfterRecoveryAsync fires only when the tag actually changes, which + // is too narrow for the reset: we want to clear the flag on EVERY successful recovery, + // not just those where the broker happened to reassign the tag. + // + // IDE0031's `?.E += h` rewrite needs C# 14 null-conditional compound assignment; this + // file also compiles under net8.0/C# 12, so the rewrite is unavailable there. +#pragma warning disable IDE0031 + if (_subscribedUnderlyingConnection is not null) + { + _subscribedUnderlyingConnection.RecoverySucceededAsync += OnConnectionRecoverySucceededAsync; + } +#pragma warning restore IDE0031 + } + + private Task OnConnectionRecoverySucceededAsync(object? sender, AsyncEventArgs args) + { + _channelHost.NotifyRecoverySucceeded(); + return Task.CompletedTask; + } + + private Task OnConsumerTagChangedAfterRecoveryAsync(object? sender, ConsumerTagChangedAfterRecoveryEventArgs args) + { + // After auto-recovery the broker may assign a new tag for our consumer. Update + // _consumerTag so the BasicCancelAsync call during DisposeAsync targets the live consumer. + // + // Read + write under acquire/release fences so a concurrent Stop/Dispose that reads + // _consumerTag (line 569 / 644) cannot observe a stale reference: without the fence + // the JIT may hoist the read across the unsubscribe boundary, sending BasicCancel + // for a tag the broker has already replaced — orphaning the live consumer until + // channel teardown lands and the broker happens to flush its dead delivery list. + var current = Volatile.Read(ref _consumerTag); + if (string.Equals(args.TagBefore, current, StringComparison.Ordinal)) + { + _logger.LogDebug( + "Consumer tag refreshed after auto-recovery on queue '{Queue}': '{TagBefore}' -> '{TagAfter}'", + _queueName, args.TagBefore, args.TagAfter); + Volatile.Write(ref _consumerTag, args.TagAfter); + } + + return Task.CompletedTask; + } + + /// + /// Issues a graceful stop without tearing down the channel: BasicCancel on the consumer + /// tag so the broker stops delivering, then drains in-flight handler invocations through + /// the admission gate. Idempotent — repeated calls return early. Safe to run before + /// ; DisposeAsync repeats the BeginShutdown / BasicCancel / + /// drain trio (idempotent ops) and then proceeds to close the channel and unsubscribe + /// handlers. + /// + public async Task StopAsync(CancellationToken cancellationToken = default) + { + if (Interlocked.CompareExchange(ref _stopStarted, 1, 0) != 0) + { + return; + } + + _admissionGate.BeginShutdown(); + + // Signal in-flight handlers that shutdown is in progress BEFORE the drain wait. + // Handlers that respect their CancellationToken (the one threaded through + // IConsumeContext.CancellationToken from _deliveryToken) can wind down gracefully + // within the grace window. Without this signal, well-behaved handlers blocked on + // cancellable I/O have no way to know shutdown is happening and consume the full + // graceful-shutdown timeout, defeating the grace window's purpose. Cancelling here + // (vs. after the drain) does not abort handlers that ignore CT — the drain still + // waits for them. + try { await _deliveryCts.CancelAsync().ConfigureAwait(false); } catch (ObjectDisposedException) { } + + var deadline = _timeProvider.GetUtcNow().AddMilliseconds(_gracefulShutdownTimeoutMs); + + // Unsubscribe the consumer-tag recovery handler BEFORE BasicCancelAsync so a + // concurrent recovery event cannot swap _consumerTag while BasicCancelAsync is + // using it. DisposeAsync re-runs this unsubscribe; it's null-safe and idempotent. + // The recovery-reset handler is unsubscribed alongside it so a late recovery event + // fired during shutdown cannot flip the cancelled flag back to healthy on a host + // that is intentionally tearing down. + if (_subscribedUnderlyingConnection is not null) + { + _subscribedUnderlyingConnection.ConsumerTagChangeAfterRecoveryAsync -= OnConsumerTagChangedAfterRecoveryAsync; + _subscribedUnderlyingConnection.RecoverySucceededAsync -= OnConnectionRecoverySucceededAsync; + } + + // Unsubscribe channel-shutdown handlers BEFORE BasicCancelAsync. Sending BasicCancel + // with a stale tag (replaced by auto-recovery) causes the broker to close the channel + // with a Library initiator, not Application. Without this unsubscribe the channel host's + // OnChannelShutdownAsync would flip IsCancelledByBroker, falsely marking the bus + // Unhealthy even though the stop is intentional. DisposeAsync re-runs the same + // unsubscribe idempotently via the channel host's disposal path. + _channelHost.UnsubscribeShutdownHandlers(); + + // Snapshot _consumerTag under an acquire fence — pairs with the release-fence + // write in OnConsumerTagChangedAfterRecoveryAsync. Without the fence the JIT can + // hoist the read across the unsubscribe boundary above, racing a recovery event + // that has already swapped the tag. + var tagForCancel = Volatile.Read(ref _consumerTag); + if (_channelHost.Model != null && tagForCancel != null) + { + try + { + if (!await WaitForShutdownOperationAsync( + _channelHost.Model!.BasicCancelAsync(tagForCancel, false, cancellationToken), + deadline).ConfigureAwait(false)) + { + _logger.LogWarning("Timed out cancelling consumer during graceful stop"); + } + } + catch (ObjectDisposedException) { } + catch (Exception ex) + { + _logger.LogWarning(ex, "Error cancelling consumer during graceful stop"); + } + } + + var drainRemaining = deadline - _timeProvider.GetUtcNow(); + if (drainRemaining > TimeSpan.Zero) + { + // Construct the deadline CTS with the host's TimeProvider (matches the existing + // DisposeAsync drain pattern) and link the caller's cancellation token via + // Register so either source cancels the drain. + using var drainCts = new CancellationTokenSource(drainRemaining, _timeProvider); + using var linkReg = cancellationToken.Register(static cts => ((CancellationTokenSource)cts!).Cancel(), drainCts); + try + { + await _admissionGate.DrainAsync(drainCts.Token).ConfigureAwait(false); + } + catch (OperationCanceledException) when (drainCts.IsCancellationRequested && !cancellationToken.IsCancellationRequested) + { + // Drain timeout — same path DisposeAsync takes; let DisposeAsync's own + // deadline-driven branch handle the publish-CTS cancellation, since stop + // alone shouldn't tear down outbound channels. + Volatile.Write(ref _shutdownTimedOut, 1); + } + } + else + { + Volatile.Write(ref _shutdownTimedOut, 1); + } + } + + public async ValueTask DisposeAsync() + { + // Only one DisposeAsync call may proceed; concurrent calls return early. The admission + // gate's BeginShutdown is idempotent, but two concurrent disposes would otherwise both + // run the rest of teardown (channel close, CTS dispose), which is not safe to repeat. + if (Interlocked.CompareExchange(ref _disposeStarted, 1, 0) != 0) + { + return; + } + _admissionGate.BeginShutdown(); + + // Signal in-flight handlers that shutdown is in progress BEFORE the drain wait, so + // handlers that respect CT can wind down within the grace window. The CTS is still + // disposed at the end of dispose; this just moves the cancellation signal earlier. + // Idempotent if StopAsync already ran. + try { await _deliveryCts.CancelAsync().ConfigureAwait(false); } catch (ObjectDisposedException) { } + + var deadline = _timeProvider.GetUtcNow().AddMilliseconds(_gracefulShutdownTimeoutMs); + var shutdownPublishCts = _shutdownPublishCts; + _ = CancelHelperPublishesAtDeadlineAsync(shutdownPublishCts, deadline); + + // Unsubscribe the consumer-tag recovery handler BEFORE BasicCancelAsync. A recovery + // event firing concurrently with the cancel could otherwise swap _consumerTag while + // BasicCancelAsync is using it, targeting a stale tag. The remaining connection-level + // unsubscribes (channel/connection shutdown, blocked/unblocked) stay near the end of + // dispose where they were — those don't read host state during teardown. The + // recovery-reset handler is unsubscribed alongside the tag-change handler so a late + // recovery event cannot clear the cancelled flag on a host that is tearing down. + if (_subscribedUnderlyingConnection is not null) + { + _subscribedUnderlyingConnection.ConsumerTagChangeAfterRecoveryAsync -= OnConsumerTagChangedAfterRecoveryAsync; + _subscribedUnderlyingConnection.RecoverySucceededAsync -= OnConnectionRecoverySucceededAsync; + } + + // Volatile.Read pairs with OnConsumerTagChangedAfterRecoveryAsync's write — same + // rationale as in StopAsync: defend against a JIT hoist across the unsubscribe. + var tagForCancel = Volatile.Read(ref _consumerTag); + if (_channelHost.Model != null && tagForCancel != null) + { + try + { + if (!await WaitForShutdownOperationAsync( + _channelHost.Model!.BasicCancelAsync(tagForCancel, false), + deadline).ConfigureAwait(false)) + { + _logger.LogWarning("Timed out cancelling consumer during dispose"); + } + } + catch (ObjectDisposedException) { } + catch (Exception ex) + { + _logger.LogWarning(ex, "Error cancelling consumer during dispose"); + } + } + + // Event-driven drain: the gate completes its drain task as soon as the last + // in-flight Release() lands, so the success path is faster than the prior 50ms + // busy-wait. Cancellation fires when the deadline expires, mapping to the same + // "set _shutdownTimedOut + cancel helper publishes" behaviour as the old break path. + var drainRemaining = deadline - _timeProvider.GetUtcNow(); + if (drainRemaining > TimeSpan.Zero) + { + using var drainCts = new CancellationTokenSource(drainRemaining, _timeProvider); + try + { + await _admissionGate.DrainAsync(drainCts.Token).ConfigureAwait(false); + } + catch (OperationCanceledException) when (drainCts.IsCancellationRequested) + { + Volatile.Write(ref _shutdownTimedOut, 1); + await shutdownPublishCts.CancelAsync().ConfigureAwait(false); + } + } + else + { + Volatile.Write(ref _shutdownTimedOut, 1); + await shutdownPublishCts.CancelAsync().ConfigureAwait(false); + } + + if (_autoDelete && _channelHost.Model != null) + { + try + { + _logger.LogDebug("Deleting retry queue"); + if (!await WaitForShutdownOperationAsync( + _channelHost.Model!.QueueDeleteAsync(_retryQueueName, false, false, false), + deadline).ConfigureAwait(false)) + { + _logger.LogWarning("Timed out deleting retry queue during dispose"); + } + } + catch (ObjectDisposedException) { } + catch (Exception ex) + { + _logger.LogWarning(ex, "Error deleting retry queue"); + } + } + + // Unsubscribe broker-initiated shutdown handlers to prevent leaks on restart. + if (_consumer is not null) + { + _consumer.ShutdownAsync -= OnConsumerShutdownAsync; + _consumer.UnregisteredAsync -= OnConsumerUnregisteredAsync; + // The ReceivedAsync subscription is a lambda captured in _receivedHandler at + // PrepareAsync time. Without removing it here, a late prefetched delivery + // arriving between BasicCancelAsync and channel close would fire EventAsync + // on a disposed host — TryAdmit short-circuits today, but the GC-rooted host + // reference also leaks until the underlying AsyncEventingBasicConsumer is + // itself collected. Method-group subscriptions are removable by identity; + // lambdas require holding the delegate reference. + if (_receivedHandler is not null) + { + _consumer.ReceivedAsync -= _receivedHandler; + _receivedHandler = null; + } + } + // Unsubscribe against the SAME IConnection reference we subscribed to. Re-fetching + // _connection.UnderlyingConnection here would return null after the parent Connection's + // DisposeAsync has already nulled the field, leaking these handlers on the original + // IConnection until GC reclaims it. + var subscribedConn = _subscribedUnderlyingConnection; + if (subscribedConn is not null) + { + subscribedConn.ConnectionShutdownAsync -= OnConnectionShutdownAsync; + subscribedConn.ConnectionBlockedAsync -= OnConnectionBlockedAsync; + subscribedConn.ConnectionUnblockedAsync -= OnConnectionUnblockedAsync; + // ConsumerTagChangeAfterRecoveryAsync and RecoverySucceededAsync were already + // unsubscribed earlier in dispose to prevent recovery-during-cancel swaps and a + // late recovery clearing the cancelled flag on a tearing-down host; only the + // connection-level shutdown handlers are unsubscribed here. + _subscribedUnderlyingConnection = null; + } + + // Bound the channel-host dispose against the remaining grace window. The channel host + // passes the token into each CloseAsync call; if the test (or real) time provider fires + // a deadline, the stalled CloseAsync is abandoned and we continue teardown. + var closeRemaining = deadline - _timeProvider.GetUtcNow(); + if (closeRemaining > TimeSpan.Zero) + { + using var closeCts = new CancellationTokenSource(closeRemaining, _timeProvider); + var closeTask = _channelHost.DisposeAsync(closeCts.Token).AsTask(); + // Task.Delay with _timeProvider so fake-time providers used in tests can fire + // the deadline exactly when Advance() crosses the boundary. + var deadlineTask = Task.Delay(closeRemaining, _timeProvider); +#pragma warning disable VSTHRD003 + if (await Task.WhenAny(closeTask, deadlineTask).ConfigureAwait(false) != closeTask) + { + _logger.LogWarning("Timed out closing channels during dispose"); + ObserveAbandonedRpc(closeTask); + } +#pragma warning restore VSTHRD003 + } + else + { + // Deadline already expired: fire with pre-cancelled token and don't await. + using var closeCts = new CancellationTokenSource(); + await closeCts.CancelAsync().ConfigureAwait(false); + ObserveAbandonedRpc(_channelHost.DisposeAsync(closeCts.Token).AsTask()); + } + await shutdownPublishCts.CancelAsync().ConfigureAwait(false); + shutdownPublishCts.Dispose(); + var deliveryCts = _deliveryCts; + try { await deliveryCts.CancelAsync().ConfigureAwait(false); } catch (ObjectDisposedException) { } + deliveryCts.Dispose(); + // Null the consumer field AFTER channel close so a late delivery firing during the + // close window (the AsyncEventingBasicConsumer is the source of the ReceivedAsync + // event and may still emit after we unsubscribed but before the channel close + // completes) can still be observed by the admission gate, which short-circuits via + // TryAdmit. + _consumer = null; + } + + private async Task CancelHelperPublishesAtDeadlineAsync(CancellationTokenSource shutdownPublishCts, DateTimeOffset deadline) + { + try + { + var remaining = deadline - _timeProvider.GetUtcNow(); + if (remaining <= TimeSpan.Zero) + { + // Set the timed-out flag BEFORE cancelling the publish CTS. AckOrNackAsync + // gates its leave-unacked branch on _shutdownTimedOut; any in-flight delivery + // that observes the publish cancellation must also observe the flag, or it + // will fall through to BasicNackAsync and break the "broker redelivers after + // channel close" contract. + Volatile.Write(ref _shutdownTimedOut, 1); + await shutdownPublishCts.CancelAsync().ConfigureAwait(false); + return; + } + + try + { + await Task.Delay(remaining, _timeProvider, shutdownPublishCts.Token).ConfigureAwait(false); + Volatile.Write(ref _shutdownTimedOut, 1); + await shutdownPublishCts.CancelAsync().ConfigureAwait(false); + } + catch (OperationCanceledException) when (shutdownPublishCts.IsCancellationRequested) + { + return; + } + catch (ObjectDisposedException) + { + return; + } + } + catch (Exception ex) + { + // Fire-and-forget helper: any failure outside the expected OCE / ObjectDisposed + // paths above must not become an unobserved Task. Warning rather than Debug — + // a stalled deadline helper means dispose may hang publishes past the grace + // window without a loud signal in production logs. + _logger.LogWarning(ex, "CancelHelperPublishesAtDeadlineAsync best-effort recovery faulted"); + } + } + + private async Task WaitForShutdownOperationAsync(Task operation, DateTimeOffset deadline) + { + var remaining = deadline - _timeProvider.GetUtcNow(); + if (remaining <= TimeSpan.Zero) + { + // Even with no remaining budget, attach the observation continuation: the + // operation may still complete or fault later (e.g. AlreadyClosedException + // from the subsequent channel close). Same reason as the timeout-wins branch. + ObserveAbandonedRpc(operation); + return false; + } + + var timeoutTask = Task.Delay(remaining, _timeProvider); +#pragma warning disable VSTHRD003 // operation is a Task passed by the caller; this helper bounds its wait against a deadline. + if (await Task.WhenAny(operation, timeoutTask).ConfigureAwait(false) != operation) + { + // The deadline won. The RPC may complete or fault later (e.g. AlreadyClosedException + // from the subsequent channel close). Attach a benign continuation so the + // post-deadline fault is observed rather than firing TaskScheduler.UnobservedTaskException. + ObserveAbandonedRpc(operation); + return false; + } + + await operation.ConfigureAwait(false); +#pragma warning restore VSTHRD003 + return true; + } + + private void ObserveAbandonedRpc(Task operation) + { + // Continuation runs only if the operation faults; logs at Debug because an aborted + // post-deadline RPC is expected during dispose, not an error. + _ = operation.ContinueWith( + t => + { + if (t.Exception is { } ex) + { + _logger.LogDebug(ex, "Post-deadline shutdown RPC aborted (expected on channel close)"); + } + }, + CancellationToken.None, + TaskContinuationOptions.OnlyOnFaulted | TaskContinuationOptions.ExecuteSynchronously, + TaskScheduler.Default); + } + + private static Dictionary CoerceToQueueArgs(IReadOnlyDictionary settings, string key) + { + // Accept any dictionary-shaped value; copy into a plain Dictionary<,> so downstream + // mutation and enumeration operate on a concrete, non-read-only instance. Direct casting + // to IDictionary<,> broke for callers using custom IReadOnlyDictionary implementations + // that do not also implement IDictionary. + if (!settings.TryGetValue(key, out var raw) || raw is null) + { + return []; + } + + return raw switch + { + Dictionary d => d, + IDictionary id => new Dictionary(id, StringComparer.Ordinal), + IReadOnlyDictionary rd => rd.ToDictionary(kv => kv.Key, kv => kv.Value, StringComparer.Ordinal), + _ => throw new InvalidOperationException( + $"Setting '{key}' must be IDictionary or IReadOnlyDictionary; got {raw.GetType().FullName}."), + }; + } +} diff --git a/src/ServiceConnect.Client.RabbitMQ/Consumer/RabbitMqDispatchPipeline.cs b/src/ServiceConnect.Client.RabbitMQ/Consumer/RabbitMqDispatchPipeline.cs new file mode 100644 index 000000000..15d4cdd30 --- /dev/null +++ b/src/ServiceConnect.Client.RabbitMQ/Consumer/RabbitMqDispatchPipeline.cs @@ -0,0 +1,228 @@ +using System.Diagnostics; +using Microsoft.Extensions.Logging; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Diagnostics; + +namespace ServiceConnect.Client.RabbitMQ; + +/// +/// Inner dispatch + ack/nack stage for a single RabbitMQ consumer host. Wraps the +/// admitted, validated delivery's invocation of +/// with the messaging.process.* metrics, then drives the ack/nack decision against the +/// model channel based on the handler outcome and the channel/shutdown state. +/// +internal sealed class RabbitMqDispatchPipeline( + string consumerQueueName, + Func shutdownTimedOutQuery, + Func shutdownStartedQuery, + ILogger logger) +{ + private readonly string _consumerQueueName = consumerQueueName ?? throw new ArgumentNullException(nameof(consumerQueueName)); + private readonly Func _shutdownTimedOutQuery = shutdownTimedOutQuery ?? throw new ArgumentNullException(nameof(shutdownTimedOutQuery)); + private readonly Func _shutdownStartedQuery = shutdownStartedQuery ?? throw new ArgumentNullException(nameof(shutdownStartedQuery)); + private readonly ILogger _logger = logger ?? throw new ArgumentNullException(nameof(logger)); + + /// + /// Runs the handler dispatch (with messaging.process.* metric instrumentation) and the + /// subsequent ack/nack against the model channel. Returns nothing — the caller's + /// responsibility ends after this method, which has already emitted all metrics and + /// driven the broker frame for this delivery. + /// + public async Task DispatchAndAckAsync( + InboundMessageProcessor processor, + IChannel? model, + IChannel publishChannel, + BasicDeliverEventArgs args, + Dictionary copiedHeaders, + CancellationToken cancellationToken) + { + bool processed = await ProcessWithMetricsAsync(processor, publishChannel, args, copiedHeaders, cancellationToken).ConfigureAwait(false); + await AckOrNackAsync(model, args, processed).ConfigureAwait(false); + } + + /// + /// Direct ack/nack against the model channel, used by callers that already know the + /// outcome and don't need handler dispatch / metric emission. Validator-rejection passes + /// =true (ack-and-don't-redeliver: redelivery would just hit + /// the same rule); the null-processor branch passes =false + /// (nack-with-requeue: handler will be available on the next consumer start). + /// + public async Task AckOrNackAsync(IChannel? model, BasicDeliverEventArgs args, bool processed) + { + try + { + if (model == null) + { + // Channel was nulled by concurrent DisposeAsync. Expected during teardown; + // broker will redeliver unacked messages on next consumer start. + _logger.LogDebug("Channel was null during ack/nack — message {DeliveryTag} may be redelivered", args.DeliveryTag); + } + else if (!model.IsOpen) + { + // Channel closed concurrently. Expected during teardown / connection drop. + _logger.LogDebug("Channel was closed during ack/nack — message {DeliveryTag} may be redelivered", args.DeliveryTag); + } + else if (_shutdownTimedOutQuery()) + { + _logger.LogDebug("Shutdown grace window expired before finishing message {DeliveryTag}; leaving unacked for broker redelivery", args.DeliveryTag); + } + else if (processed) + { + await model.BasicAckAsync(args.DeliveryTag, false).ConfigureAwait(false); + } + else + { + await model.BasicNackAsync(args.DeliveryTag, false, true).ConfigureAwait(false); + } + } + catch (global::RabbitMQ.Client.Exceptions.AlreadyClosedException ex) + { + // Expected when the connection/channel is torn down concurrently with + // message processing (typical during shutdown). The broker will redeliver + // unacked messages after the connection drops, so this is not an error. + if (_shutdownStartedQuery()) + { + _logger.LogDebug(ex, "Channel already closed while acking/nacking message {DeliveryTag} during shutdown", args.DeliveryTag); + } + else + { + LogAckOrNackFailure(ex, args, processed); + } + } + catch (ObjectDisposedException ex) + { + if (_shutdownStartedQuery()) + { + _logger.LogDebug(ex, "Channel disposed while acking/nacking message {DeliveryTag} during shutdown", args.DeliveryTag); + } + else + { + LogAckOrNackFailure(ex, args, processed); + } + } + catch (Exception ex) + { + LogAckOrNackFailure(ex, args, processed); + } + } + + // Inner metric scope: only the ProcessAsync invocation itself; admission/header validation + // are operator-visible failures of THIS host, not handler failures, so they don't show up + // on the messaging.process.* metrics. Returns the same processed flag the caller would + // otherwise have assigned, with handler exceptions logged-and-swallowed exactly as the + // pre-metrics path did so the outer ack/nack finally still drives the requeue decision. + private async Task ProcessWithMetricsAsync( + InboundMessageProcessor processor, + IChannel publishChannel, + BasicDeliverEventArgs args, + Dictionary copiedHeaders, + CancellationToken cancellationToken) + { + var processStartTimestamp = Stopwatch.GetTimestamp(); + bool processed = false; + Exception? processFailure = null; + try + { + processed = await processor.ProcessAsync(publishChannel, args, copiedHeaders, cancellationToken).ConfigureAwait(false); + } + catch (OperationCanceledException) when (cancellationToken.IsCancellationRequested) + { + // Cooperative shutdown — the host's per-delivery CTS fired and a well-behaved + // handler honoured it. Don't log Error and don't tag the metric with + // `error.type=OperationCanceledException`, which would alert dashboards every + // graceful shutdown. Fall through so EmitProcessMetrics records the consume + // as outcome=retry (processed=false, processFailure=null) and the caller + // nacks-with-requeue; the broker redelivers on the next consumer start. + } + catch (Exception ex) + { + processFailure = ex; + _logger.LogError(ex, "Error processing message"); + } + finally + { + EmitProcessMetrics(processStartTimestamp, processed, processFailure); + } + + return processed; + } + + // Emits messaging.process.duration (always) and messaging.client.consumed.messages + // (always, tagged by outcome). Outcome is one of: + // success — handler returned and ProcessAsync routed it through the success/audit path. + // error — ProcessAsync threw or the host caught a handler exception. + // retry — handler returned a non-success ConsumeEventResult; the message was routed + // to the retry queue, so processed=false but no exception was thrown. + // The retry-publish-failure swallow at InboundMessageProcessor (catch (Exception retryEx)) + // also surfaces here as outcome=success because ProcessAsync still returns true: that drop + // is reported separately on messaging.serviceconnect.retry.drops in a later commit. + private void EmitProcessMetrics(long startTimestamp, bool processed, Exception? processFailure) + { + // Cache the mapped error type once — used on both the duration histogram and the + // consumed-messages counter when the handler threw. ExceptionTypeMapper.Map performs + // a virtual call + switch, so caching avoids a redundant lookup per emit pair. + var elapsed = Stopwatch.GetElapsedTime(startTimestamp).TotalSeconds; + var errorType = processFailure is null ? null : ExceptionTypeMapper.Map(processFailure); + + var processTags = new TagList + { + { "messaging.system", "rabbitmq" }, + { "messaging.operation.type", "process" }, + { "messaging.operation.name", "process" }, + { "messaging.destination.name", _consumerQueueName }, + }; + if (errorType is not null) + { + processTags.Add("error.type", errorType); + } + ServiceConnectMeter.RecordProcessDuration(elapsed, processTags); + + string outcome; + if (processFailure != null) + { + outcome = "error"; + } + else if (processed) + { + outcome = "success"; + } + else + { + outcome = "retry"; + } + + var consumedTags = new TagList + { + { "messaging.system", "rabbitmq" }, + { "messaging.operation.type", "process" }, + { "messaging.operation.name", "process" }, + { "messaging.destination.name", _consumerQueueName }, + { "messaging.outcome", outcome }, + }; + if (errorType is not null) + { + consumedTags.Add("error.type", errorType); + } + ServiceConnectMeter.AddConsumedMessage(consumedTags); + } + + // Emit AckFailed when we were trying to ack (processed=true) and NackFailed when we + // were trying to nack-with-requeue (processed=false). Carries MessageId from + // BasicProperties.MessageId so log readers can correlate to a specific message; + // falls back to DeliveryTag when the producer didn't stamp a MessageId. + private void LogAckOrNackFailure(Exception ex, BasicDeliverEventArgs args, bool processed) + { + var messageId = string.IsNullOrEmpty(args.BasicProperties.MessageId) + ? args.DeliveryTag.ToString(System.Globalization.CultureInfo.InvariantCulture) + : args.BasicProperties.MessageId; + if (processed) + { + RabbitMqClientLog.AckFailed(_logger, ex, messageId, args.DeliveryTag, _consumerQueueName); + } + else + { + RabbitMqClientLog.NackFailed(_logger, ex, messageId, args.DeliveryTag, _consumerQueueName); + } + } +} diff --git a/src/ServiceConnect.Client.RabbitMQ/Consumer/RabbitMqHeaderValidator.cs b/src/ServiceConnect.Client.RabbitMQ/Consumer/RabbitMqHeaderValidator.cs new file mode 100644 index 000000000..a6075c65d --- /dev/null +++ b/src/ServiceConnect.Client.RabbitMQ/Consumer/RabbitMqHeaderValidator.cs @@ -0,0 +1,292 @@ +using System.Text; +using Microsoft.Extensions.Logging; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Client.RabbitMQ; + +/// +/// Pre-dispatch validation for inbound RabbitMQ deliveries. Rejects malformed or oversized +/// messages by routing them through +/// before they reach the dispatch pipeline. Permanently-invalid messages are acked by the host +/// after rejection (not redelivered), since redelivery would just hit the same validation. +/// +internal sealed class RabbitMqHeaderValidator( + IMessageRetryHandler retryHandler, + long maxInboundMessageSize, + int maxHeaderCount, + int maxHeaderValueBytes, + Func shutdownPublishTokenFactory, + ILogger logger) +{ + // AMQP 0-9-1 tables in practice nest only a handful of levels deep; 32 is generous + // and prevents adversarially-crafted sparse deep chains from exhausting the thread + // stack (1 MB default; ~150 bytes/frame). The budget short-circuit fires first on + // typical payloads — this guard activates only on pathologically deep nesting. + private const int MaxNestingDepth = 32; + + private readonly IMessageRetryHandler _retryHandler = retryHandler ?? throw new ArgumentNullException(nameof(retryHandler)); + private readonly long _maxInboundMessageSize = maxInboundMessageSize; + private readonly int _maxHeaderCount = maxHeaderCount; + private readonly int _maxHeaderValueBytes = maxHeaderValueBytes; + private readonly Func _shutdownPublishTokenFactory = shutdownPublishTokenFactory ?? throw new ArgumentNullException(nameof(shutdownPublishTokenFactory)); + private readonly ILogger _logger = logger ?? throw new ArgumentNullException(nameof(logger)); + + /// + /// Validates a delivery against the four pre-dispatch rules. On the first failing rule, + /// routes the message to the terminal-failure path and returns a Reject result. The host + /// treats a Reject as "permanently invalid" — the broker delivery is acked rather than + /// nacked-with-requeue, since redelivery would just hit the same rule. + /// + public async Task ValidateAsync( + BasicDeliverEventArgs args, + IChannel publishChannel, + Dictionary copiedHeaders, + CancellationToken cancellationToken) + { + // Pre-cancel without doing any publish I/O if the delivery has already been cancelled. + // The terminal-failure publish itself is bounded by the shutdown-publish token (see + // _shutdownPublishTokenFactory) so dispose-time pending publishes are still abandoned + // even if the delivery token has not yet fired. + cancellationToken.ThrowIfCancellationRequested(); + + // ContainsKey admits a key whose value is null; use TryGetValue+non-null instead. + // A null-valued TypeName passes ContainsKey but CopyInboundHeaders skips null values, + // so the dispatch-site indexer would throw KeyNotFoundException and burn a retry cycle + // on a guaranteed-fail dispatch. Reject at admission instead. + static bool HasNonNullValue(IDictionary h, string key) + => h.TryGetValue(key, out var v) && v is not null; + + // Rule 1: oversized body. This runs FIRST so subsequent rules (which copy args.Body + // to the error exchange via HandleTerminalFailureAsync → PublishErrorAsync) cannot be + // tricked into copying an adversarial multi-MB body. Without this ordering, a flood + // of "oversized + missing type-name" messages would each cause a full-body publish via + // the missing-type-name rule before the size cap was consulted, defeating + // _maxInboundMessageSize as a DoS mitigation. + if (args.Body.Length > _maxInboundMessageSize) + { + return await SafePublishTerminalAsync( + publishChannel, + args, + copiedHeaders, + new InvalidOperationException( + $"Inbound message size {args.Body.Length} bytes exceeds configured limit {_maxInboundMessageSize} bytes."), + "oversized body").ConfigureAwait(false); + } + + // Rule 2: missing type-name header. Body size is now known to be within the cap, so + // HandleTerminalFailureAsync can safely publish args.Body to the error exchange. + if (args.BasicProperties.Headers == null || + (!HasNonNullValue(args.BasicProperties.Headers, HeaderKeys.TypeName) && + !HasNonNullValue(args.BasicProperties.Headers, HeaderKeys.FullTypeName))) + { + return await SafePublishTerminalAsync( + publishChannel, + args, + copiedHeaders, + new InvalidOperationException("Message headers must contain type name."), + "missing type-name header").ConfigureAwait(false); + } + + // Rule 3: too many headers + var inboundHeaders = args.BasicProperties.Headers; + if (inboundHeaders != null && inboundHeaders.Count > _maxHeaderCount) + { + return await SafePublishTerminalAsync( + publishChannel, + args, + copiedHeaders, + new InvalidOperationException( + $"Inbound header count {inboundHeaders.Count} exceeds configured limit {_maxHeaderCount}."), + "too many headers").ConfigureAwait(false); + } + + // Rule 4: oversized individual header value (recursive — descends into AMQP nested + // tables and arrays). A header value can be an AMQP nested table or array carrying + // arbitrary payload; without descent, a single top-level header bypasses the per-value + // byte cap entirely. The helper returns null as a sentinel for "exceeded budget + // mid-descent" so callers short-circuit without computing the full size of an + // adversarial payload. + // + // Rule 5 (aggregate): each header value individually fits the per-value cap, but the + // sum of all values is also bounded by _maxInboundMessageSize. Without this an + // adversary could pack MaxHeaderCount × MaxHeaderValueBytes (default 64 × 8 KiB = + // 512 KiB) into headers and bypass the body cap entirely. Capping the aggregate at + // the body cap keeps header capacity proportional to body capacity. + if (inboundHeaders != null) + { + long aggregate = 0; + foreach (var kvp in inboundHeaders) + { + // Count the key bytes too — without this, an adversary can pack + // _maxHeaderCount keys at AMQP shortstr max length (255 bytes each) + // and bypass roughly _maxHeaderCount × 255 bytes of "free" header + // weight against the message-size budget. + aggregate += Encoding.UTF8.GetByteCount(kvp.Key); + if (aggregate > _maxInboundMessageSize) + { + return await SafePublishTerminalAsync( + publishChannel, + args, + copiedHeaders, + new InvalidOperationException( + $"Inbound header aggregate size {aggregate} bytes exceeds the message-size budget of {_maxInboundMessageSize} bytes."), + "oversized header aggregate").ConfigureAwait(false); + } + + var cost = ComputeHeaderValueByteCost(kvp.Value, _maxHeaderValueBytes); + if (cost is null) + { + return await SafePublishTerminalAsync( + publishChannel, + args, + copiedHeaders, + new InvalidOperationException( + $"Inbound header '{kvp.Key}' exceeds configured per-value limit {_maxHeaderValueBytes} bytes (or its nested AMQP table/array does)."), + "oversized header value").ConfigureAwait(false); + } + aggregate += cost.Value; + if (aggregate > _maxInboundMessageSize) + { + return await SafePublishTerminalAsync( + publishChannel, + args, + copiedHeaders, + new InvalidOperationException( + $"Inbound header aggregate size {aggregate} bytes exceeds the message-size budget of {_maxInboundMessageSize} bytes."), + "oversized header aggregate").ConfigureAwait(false); + } + } + } + + return HeaderValidationResult.Accept(); + } + + /// + /// Attempts to publish a terminal failure to the error exchange, then returns a + /// regardless of whether the publish + /// succeeded. Broker exceptions (, + /// , + /// , + /// ) are swallowed + /// with an error log so that a closed or unroutable publish channel does not prevent the + /// caller from acking the inbound delivery. The message is permanently invalid regardless + /// of whether the error-exchange publish succeeds; requeuing it would loop the same rule. + /// is re-thrown so cooperative shutdown is + /// distinguishable from a broker failure. + /// + private async Task SafePublishTerminalAsync( + IChannel publishChannel, + BasicDeliverEventArgs args, + Dictionary copiedHeaders, + Exception failure, + string rejectReason) + { + try + { + await _retryHandler.HandleTerminalFailureAsync( + publishChannel, args, copiedHeaders, failure, _shutdownPublishTokenFactory()).ConfigureAwait(false); + } + catch (OperationCanceledException) + { + throw; + } + catch (Exception ex) when ( + // AlreadyClosedException derives from OperationInterruptedException, so the + // OperationInterruptedException arm already covers it. Both are listed explicitly + // as a documentation aid: readers scanning for "what happens when the channel + // is closed?" find the answer without consulting the RabbitMQ.Client type hierarchy. + ex is global::RabbitMQ.Client.Exceptions.AlreadyClosedException + or global::RabbitMQ.Client.Exceptions.OperationInterruptedException + or global::RabbitMQ.Client.Exceptions.BrokerUnreachableException + or global::RabbitMQ.Client.Exceptions.PublishException) + { + // Publish channel is unhealthy or the error exchange is unroutable (topology drift). + // Swallow so the caller still receives a Reject and acks the original delivery: + // the message is permanently invalid (it failed header validation), so requeuing + // for redelivery while the broker is degraded would loop the same message + // indefinitely. The error queue publish is the best-effort observability path; + // a closed or unroutable publish channel means the message is dropped but the + // ack still removes it from the inbound queue, matching the + // IQueueConfiguration.DisableErrors contract shape. + _logger.LogError(ex, + "RabbitMqHeaderValidator could not publish terminal failure to error exchange ({Reason}); dropping the inbound message after ack.", + rejectReason); + } + return HeaderValidationResult.Reject(rejectReason); + } + + /// + /// Computes the approximate byte cost of an AMQP header value. Returns the sum of + /// scalar string/byte[] costs; descends into nested + /// and values. Returns null as a sentinel for + /// "exceeded mid-descent" so callers can short-circuit without + /// computing the full size of an adversarial payload. + /// + private static int? ComputeHeaderValueByteCost(object? value, int budget, int depthRemaining = MaxNestingDepth) + { + // Reject adversarial sparse deep chains: 32 levels is far beyond AMQP norms. + if (depthRemaining <= 0) + { + return null; + } + + // Per-entry framing overhead estimate: AMQP table entries carry a 1-byte type tag + // plus the entry key length. Round up by 4 bytes to keep the cost-bound conservative + // without parsing the full AMQP frame. + const int PerEntryOverhead = 4; + + return value switch + { + null => 0, + // byte[] arm before IList arm — byte[] implements IList in C#, so the more-specific + // pattern must come first or all byte[] values would route through the array path. + byte[] b => b.Length > budget ? null : b.Length, + string s => StringByteCostOrNull(s, budget), + // Nested AMQP table: descend through the values; framework string keys do not + // contribute to the value-byte count (they're bounded by header name conventions). + System.Collections.IDictionary dict => SumDictionaryCost(dict, budget, depthRemaining), + // Nested AMQP array: descend through the elements. + System.Collections.IList list => SumListCost(list, budget, depthRemaining), + // Scalars (int, bool, DateTime, etc.) are size-bounded by their type. + _ => 0, + }; + + static int? StringByteCostOrNull(string s, int budget) + { + var size = Encoding.UTF8.GetByteCount(s); + return size > budget ? null : size; + } + + static int? SumDictionaryCost(System.Collections.IDictionary d, int budget, int depthRemaining) + { + var running = 0; + foreach (System.Collections.DictionaryEntry entry in d) + { + running += PerEntryOverhead; + if (running > budget) { return null; } + var nested = ComputeHeaderValueByteCost(entry.Value, budget - running, depthRemaining - 1); + if (nested is null) { return null; } + running += nested.Value; + if (running > budget) { return null; } + } + return running; + } + + static int? SumListCost(System.Collections.IList list, int budget, int depthRemaining) + { + var running = 0; + foreach (var item in list) + { + running += PerEntryOverhead; + if (running > budget) { return null; } + var nested = ComputeHeaderValueByteCost(item, budget - running, depthRemaining - 1); + if (nested is null) { return null; } + running += nested.Value; + if (running > budget) { return null; } + } + return running; + } + } +} diff --git a/src/ServiceConnect.Client.RabbitMQ/Consumer/Retry.cs b/src/ServiceConnect.Client.RabbitMQ/Consumer/Retry.cs new file mode 100644 index 000000000..0baf0399a --- /dev/null +++ b/src/ServiceConnect.Client.RabbitMQ/Consumer/Retry.cs @@ -0,0 +1,161 @@ +namespace ServiceConnect.Client.RabbitMQ; + +/// +/// Provides asynchronous retry helpers used by the RabbitMQ transport implementation. +/// +internal static class Retry +{ + // Non-generic overload delegates to the generic one to avoid duplicated retry + // body logic. We produce a uniform return type by wrapping the void action. + /// + /// Executes an asynchronous action with retry behavior. + /// + /// The operation to execute. + /// A callback invoked after a failed attempt. + /// The base interval used when calculating retry delays. + /// The number of retry attempts after the initial attempt. + /// A token used to cancel the retry loop. + public static Task DoAsync(Func action, Func exceptionAction, TimeSpan retryInterval, int retryCount, CancellationToken cancellationToken = default) + { + ArgumentNullException.ThrowIfNull(action); + return DoAsync(async () => { await action().ConfigureAwait(false); return 0; }, exceptionAction, retryInterval, retryCount, shouldRetry: null, cancellationToken); + } + + /// + /// Executes an asynchronous action with retry behavior and a custom retry filter. + /// + /// The operation to execute. + /// A callback invoked after a failed attempt. + /// The base interval used when calculating retry delays. + /// The number of retry attempts after the initial attempt. + /// A predicate that determines whether a thrown exception should be retried. + /// A token used to cancel the retry loop. + public static Task DoAsync(Func action, Func exceptionAction, TimeSpan retryInterval, int retryCount, Func? shouldRetry, CancellationToken cancellationToken = default) + { + ArgumentNullException.ThrowIfNull(action); + return DoAsync(async () => { await action().ConfigureAwait(false); return 0; }, exceptionAction, retryInterval, retryCount, shouldRetry, cancellationToken); + } + + /// + /// Executes an asynchronous operation that returns a value with retry behavior. + /// + /// The result type produced by the operation. + /// The operation to execute. + /// A callback invoked after a failed attempt. + /// The base interval used when calculating retry delays. + /// The number of retry attempts after the initial attempt. + /// A token used to cancel the retry loop. + /// The value returned by a successful attempt. + public static Task DoAsync(Func> action, Func exceptionAction, TimeSpan retryInterval, int retryCount, CancellationToken cancellationToken = default) + { + return DoAsync(action, exceptionAction, retryInterval, retryCount, shouldRetry: null, cancellationToken); + } + + /// + /// Executes with at most retryCount + 1 total attempts + /// (the first attempt plus up to retries). + /// + /// A of 0 still runs the action exactly once — the caller's + /// intent "no retries" implies "no additional attempts", not "no attempt at all". + /// + /// + /// If is provided and returns false for a thrown + /// exception, the exception is rethrown immediately — no exceptionAction, no delay, + /// no further attempts. This lets callers mark classes of exceptions (e.g. broker nacks) + /// as non-retriable while keeping the normal reconnect-retry path for transport errors. + /// + /// + /// The result type produced by the operation. + /// The operation to execute. + /// A callback invoked after a failed attempt. + /// The base interval used when calculating retry delays. + /// The number of retry attempts after the initial attempt. + /// A predicate that determines whether a thrown exception should be retried. + /// A token used to cancel the retry loop. + /// The value returned by a successful attempt. + public static async Task DoAsync(Func> action, Func exceptionAction, TimeSpan retryInterval, int retryCount, Func? shouldRetry, CancellationToken cancellationToken = default) + { + ArgumentNullException.ThrowIfNull(action); + ArgumentNullException.ThrowIfNull(exceptionAction); + if (retryCount < 0) + { + throw new ArgumentOutOfRangeException(nameof(retryCount)); + } + + List? exceptions = null; + + for (int attempt = 0; attempt <= retryCount; attempt++) + { + cancellationToken.ThrowIfCancellationRequested(); + try + { + return await action().ConfigureAwait(false); + } + catch (OperationCanceledException) + { + // OCE is contractually non-retryable regardless of which token cancelled it. + throw; + } + catch (Exception ex) + { + if (shouldRetry != null && !shouldRetry(ex)) + { + throw; + } + + (exceptions ??= []).Add(ex); + try + { + await exceptionAction(ex).ConfigureAwait(false); + } + catch (OperationCanceledException) when (cancellationToken.IsCancellationRequested) + { + // Cooperative cancellation tied to the supplied token — propagate so callers + // can distinguish shutdown from a callback failure that should be retried. + // The action-side catch (lines ~94-97) is broader: it propagates OCE regardless + // of which token cancelled it. The narrower filter here keeps the existing + // behaviour of treating a callback OCE NOT tied to this method's token as a + // retryable failure. + // See learn/operations/cancellation. + throw; + } + catch (Exception callbackEx) + { + (exceptions ??= []).Add(callbackEx); + } + + if (attempt < retryCount) + { + var delay = CalculateDelay(retryInterval, attempt); + await Task.Delay(delay, cancellationToken).ConfigureAwait(false); + } + } + } + + throw new AggregateException(exceptions ?? []); + } + + private static readonly double MaxDelayMs = TimeSpan.FromMinutes(5).TotalMilliseconds; + + private static TimeSpan CalculateDelay(TimeSpan baseInterval, int retryAttempt) + { + // Cap at 52 to prevent double overflow: 2^53 exceeds IEEE-754 double precision + // and 2^1024 is +Infinity, both of which break TimeSpan construction. + // Clamp the raw millisecond value to the ceiling before constructing TimeSpan + // to avoid OverflowException on huge retry counts. + var cappedAttempt = Math.Min(retryAttempt, 52); + var backoff = baseInterval.TotalMilliseconds * Math.Pow(2, cappedAttempt); + var clampedBackoffMs = Math.Min(backoff, MaxDelayMs); + + // Scale jitter from the clamped delay so the spread survives at the cap. + // A jitter sourced from baseInterval (≤1000 ms) re-capped to MaxDelayMs would mean + // every retry past the cap waits exactly MaxDelayMs — synchronised retry storms + // after a connection-storm. 10 % of the clamped delay scales naturally with the + // backoff; the final value is bounded by MaxDelayMs * 1.1 so the jitter band sits + // immediately above the cap rather than collapsing to it. + var jitterCeiling = Math.Max(1, (int)(clampedBackoffMs * 0.1)); + var jitterMs = Random.Shared.Next(0, jitterCeiling); + var totalMs = clampedBackoffMs + jitterMs; + return TimeSpan.FromMilliseconds(Math.Min(totalMs, MaxDelayMs * 1.1)); + } +} diff --git a/src/ServiceConnect.Client.RabbitMQ/Producer.cs b/src/ServiceConnect.Client.RabbitMQ/Producer.cs deleted file mode 100644 index c61403013..000000000 --- a/src/ServiceConnect.Client.RabbitMQ/Producer.cs +++ /dev/null @@ -1,443 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using RabbitMQ.Client; -using ServiceConnect.Interfaces; -using System; -using System.Collections.Concurrent; -using System.Collections.Generic; -using System.Linq; -using System.Reflection; - -namespace ServiceConnect.Client.RabbitMQ -{ - public class Producer : IProducer - { - private readonly ITransportSettings _transportSettings; - private readonly IDictionary> _queueMappings; - private readonly ILogger _logger; - private IModel _model; - private IConnection _connection; - private readonly object _lock = new(); - private ConnectionFactory _connectionFactory; - private readonly string[] _hosts; - private readonly ushort _retryCount; - private readonly ushort _retryTimeInSeconds; - private readonly bool _publisherAcks; - private readonly ConcurrentDictionary _messagesSent = new(); - - public Producer(ITransportSettings transportSettings, IDictionary> queueMappings, ILogger logger) - { - _transportSettings = transportSettings; - _queueMappings = queueMappings; - _logger = logger; - MaximumMessageSize = transportSettings.ClientSettings.ContainsKey("MessageSize") ? Convert.ToInt64(_transportSettings.ClientSettings["MessageSize"]) : 65536; - _publisherAcks = transportSettings.ClientSettings.ContainsKey("PublisherAcknowledgements") && Convert.ToBoolean(_transportSettings.ClientSettings["PublisherAcknowledgements"]); - _hosts = transportSettings.Host.Split(','); - _retryCount = transportSettings.ClientSettings.ContainsKey("RetryCount") ? Convert.ToUInt16((int)transportSettings.ClientSettings["RetryCount"]) : Convert.ToUInt16(60); - _retryTimeInSeconds = transportSettings.ClientSettings.ContainsKey("RetrySeconds") ? Convert.ToUInt16((int)transportSettings.ClientSettings["RetrySeconds"]) : Convert.ToUInt16(10); - - Retry.Do(CreateConnection, ex => - { - _logger.Error("Error creating connection", ex); - DisposeConnection(); - }, new TimeSpan(0, 0, 0, _retryTimeInSeconds), _retryCount); - } - - private void CreateConnection() - { - _connectionFactory = new ConnectionFactory - { - VirtualHost = "/", - Port = AmqpTcpEndpoint.UseDefaultPort, - UseBackgroundThreadsForIO = true, - AutomaticRecoveryEnabled = true, - TopologyRecoveryEnabled = true - }; - - if (!string.IsNullOrEmpty(_transportSettings.Username)) - { - _connectionFactory.UserName = _transportSettings.Username; - } - - if (!string.IsNullOrEmpty(_transportSettings.Password)) - { - _connectionFactory.Password = _transportSettings.Password; - } - - if (_transportSettings.SslEnabled) - { - _connectionFactory.Ssl = new SslOption - { - Version = _transportSettings.Version, - Enabled = true, - AcceptablePolicyErrors = _transportSettings.AcceptablePolicyErrors, - ServerName = _transportSettings.ServerName, - CertPassphrase = _transportSettings.CertPassphrase, - CertPath = _transportSettings.CertPath, - Certs = _transportSettings.Certs, - CertificateSelectionCallback = _transportSettings.CertificateSelectionCallback, - CertificateValidationCallback = _transportSettings.CertificateValidationCallback - }; - _connectionFactory.Port = AmqpTcpEndpoint.DefaultAmqpSslPort; - } - - if (!string.IsNullOrEmpty(_transportSettings.VirtualHost)) - { - _connectionFactory.VirtualHost = _transportSettings.VirtualHost; - } - - string producerName = Assembly.GetEntryAssembly() != null ? Assembly.GetEntryAssembly().GetName().Name : System.Diagnostics.Process.GetCurrentProcess().ProcessName; - - _connection = _connectionFactory.CreateConnection(_hosts, producerName); - _model = _connection.CreateModel(); - - _model.ConfirmSelect(); - _model.BasicAcks += (o, e) => CleanOutstandingConfirms(e.DeliveryTag, e.Multiple); - _model.BasicNacks += (o, e) => - { - _logger.Warn($"Message with delivery tag {e.DeliveryTag} was not acknowledged by the broker."); - CleanOutstandingConfirms(e.DeliveryTag, e.Multiple); - }; - } - - public void Publish(Type type, byte[] message, Dictionary headers = null) - { - DoPublish(type, message, headers); - } - - private void DoPublish(Type type, byte[] message, Dictionary headers) - { - lock (_lock) - { - IBasicProperties basicProperties = _model.CreateBasicProperties(); - - Dictionary messageHeaders = GetHeaders(type, headers, _transportSettings.QueueName, "Publish"); - - Envelope envelope = new() - { - Body = message, - Headers = messageHeaders - }; - - basicProperties.Headers = envelope.Headers; - basicProperties.MessageId = basicProperties.Headers["MessageId"].ToString(); // keep track of retries - basicProperties.Persistent = true; - if (envelope.Headers != null && envelope.Headers.ContainsKey("Priority")) - { - try - { - basicProperties.Priority = Convert.ToByte(envelope.Headers["Priority"]); - } - catch (Exception ex) - { - _logger.Error("Error setting message priority", ex); - } - } - - string exchName = type.FullName.Replace(".", string.Empty); - string exchangeName = ConfigureExchange(exchName, "fanout"); - - Retry.Do(() => ClientPublish(exchangeName, "", basicProperties, envelope.Body), - ex => - { - _logger.Error("Error publishing message", ex); - DisposeConnection(); - RetryConnection(); - }, new TimeSpan(0, 0, 0, _retryTimeInSeconds), _retryCount); - } - } - - private void RetryConnection() - { - _logger.Debug("In Producer.RetryConnection()"); - CreateConnection(); - } - - public void Send(Type type, byte[] message, Dictionary headers = null) - { - lock (_lock) - { - IBasicProperties basicProperties = _model.CreateBasicProperties(); - basicProperties.Persistent = true; - if (headers != null && headers.ContainsKey("Priority")) - { - try - { - basicProperties.Priority = Convert.ToByte(headers["Priority"]); - } - catch (Exception ex) - { - _logger.Error("Error setting message priority", ex); - } - } - - IList endPoints = _queueMappings[type.FullName]; - - foreach (string endPoint in endPoints) - { - Dictionary messageHeaders = GetHeaders(type, headers, endPoint, "Send"); - - basicProperties.Headers = messageHeaders; - basicProperties.MessageId = basicProperties.Headers["MessageId"].ToString(); // keep track of retries - - Retry.Do(() => ClientPublish(string.Empty, endPoint, basicProperties, message), - ex => - { - _logger.Error("Error sending message", ex); - DisposeConnection(); - RetryConnection(); - }, - new TimeSpan(0, 0, 0, _retryTimeInSeconds), _retryCount); - } - } - } - - public void Send(string endPoint, Type type, byte[] message, Dictionary headers = null) - { - if (string.IsNullOrWhiteSpace(endPoint)) - { - throw new ArgumentException(string.Format("Cannot send message of type {0} to empty endpoint", type)); - } - - lock (_lock) - { - IBasicProperties basicProperties = _model.CreateBasicProperties(); - basicProperties.Persistent = true; - if (headers != null && headers.ContainsKey("Priority")) - { - try - { - basicProperties.Priority = Convert.ToByte(headers["Priority"]); - } - catch (Exception ex) - { - _logger.Error("Error setting message priority", ex); - } - } - - Dictionary messageHeaders = GetHeaders(type, headers, endPoint, "Send"); - - basicProperties.Headers = messageHeaders; - basicProperties.MessageId = basicProperties.Headers["MessageId"].ToString(); // keep track of retries - - Retry.Do(() => ClientPublish(string.Empty, endPoint, basicProperties, message), - ex => - { - _logger.Error("Error sending message", ex); - DisposeConnection(); - RetryConnection(); - }, - new TimeSpan(0, 0, 0, _retryTimeInSeconds), _retryCount); - } - } - - private Dictionary GetHeaders(Type type, Dictionary headers, string queueName, string messageType) - { - headers ??= new Dictionary(); - - if (!headers.ContainsKey("DestinationAddress")) - { - headers["DestinationAddress"] = queueName; - } - - if (!headers.ContainsKey("MessageId")) - { - headers["MessageId"] = Guid.NewGuid().ToString(); - } - - if (!headers.ContainsKey("MessageType")) - { - headers["MessageType"] = messageType; - } - - headers["SourceAddress"] = _transportSettings.QueueName; - headers["TimeSent"] = DateTime.UtcNow.ToString("O"); - headers["SourceMachine"] = _transportSettings.MachineName; - headers["TypeName"] = type.FullName; - headers["FullTypeName"] = type.AssemblyQualifiedName; - headers["ConsumerType"] = "RabbitMQ"; - headers["Language"] = "C#"; - - return headers.ToDictionary(x => x.Key, x => (object)x.Value); - } - - public void Disconnect() - { - _logger.Debug("In Producer.Disconnect()"); - - Dispose(); - } - - public void Dispose() - { - // Wait until all messages have been processed. - int timeout = 0; - while (_messagesSent.Count != 0 && timeout < 6000) - { - System.Threading.Thread.Sleep(100); - timeout++; - } - - if (_model != null) - { - try - { - _logger.Debug("Disposing Model"); - _model.Dispose(); - _model = null; - } - catch (Exception ex) - { - _logger.Warn("Error disposing model", ex); - } - } - - if (_connection != null) - { - try - { - _logger.Debug("Disposing connection"); - _connection.Dispose(); - } - catch (Exception ex) - { - _logger.Warn("Error disposing connection", ex); - } - _connection = null; - } - } - - public string Type => "RabbitMQ"; - - public long MaximumMessageSize { get; } - - public void SendBytes(string endPoint, byte[] packet, Dictionary headers) - { - lock (_lock) - { - IBasicProperties basicProperties = _model.CreateBasicProperties(); - basicProperties.Persistent = true; - - Dictionary messageHeaders = GetHeaders(typeof(byte[]), headers, endPoint, "ByteStream"); - - Envelope envelope = new() - { - Body = packet, - Headers = messageHeaders - }; - - basicProperties.Headers = envelope.Headers; - basicProperties.MessageId = basicProperties.Headers["MessageId"].ToString(); // keep track of retries - - Retry.Do(() => ClientPublish(string.Empty, endPoint, basicProperties, envelope.Body), - ex => - { - _logger.Error("Error sending message", ex); - DisposeConnection(); - RetryConnection(); - }, - new TimeSpan(0, 0, 0, _retryTimeInSeconds), _retryCount); - } - } - - private void ClientPublish(string exchange, string routingKey, IBasicProperties basicProperties, byte[] message) - { - ulong sequenceNumber = _model.NextPublishSeqNo; - _ = _messagesSent.TryAdd(sequenceNumber, string.Empty); - - _model.BasicPublish(exchange, routingKey, basicProperties, message); - - if (_publisherAcks) - { - _ = _model.WaitForConfirms(); - } - } - - private void CleanOutstandingConfirms(ulong sequenceNumber, bool multiple) - { - if (multiple) - { - IEnumerable> confirmed = _messagesSent.Where(k => k.Key <= sequenceNumber); - foreach (KeyValuePair entry in confirmed) - { - _ = _messagesSent.TryRemove(entry.Key, out _); - } - } - else - { - _ = _messagesSent.TryRemove(sequenceNumber, out _); - } - } - - private string ConfigureExchange(string exchangeName, string type) - { - try - { - _model.ExchangeDeclare(exchangeName, type, true, false, null); - } - catch (Exception ex) - { - _logger.Warn(string.Format("Error declaring exchange - {0}", ex.Message)); - } - - return exchangeName; - } - - private void DisposeConnection() - { - try - { - if (_connection != null) - { - lock (_connection) - { - if (_connection != null && _connection.IsOpen) - { - _connection.Close(); - _connection.Dispose(); - _connection = null; - } - } - } - - } - catch (Exception e) - { - _logger.Warn("Exception trying to close connection", e); - } - - try - { - if (_model != null) - { - lock (_model) - { - if (_model != null && _model.IsOpen) - { - _model.Close(); - _model.Dispose(); - } - } - } - } - catch (Exception e) - { - _logger.Warn("Exception trying to close model", e); - } - } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Client.RabbitMQ/Producer/ChannelTransientException.cs b/src/ServiceConnect.Client.RabbitMQ/Producer/ChannelTransientException.cs new file mode 100644 index 000000000..9f5f38e14 --- /dev/null +++ b/src/ServiceConnect.Client.RabbitMQ/Producer/ChannelTransientException.cs @@ -0,0 +1,9 @@ +namespace ServiceConnect.Client.RabbitMQ; + +// Sentinel for the channel-null TOCTOU between EnsureConnectedAsync (run outside +// _publishLock / _connectionSemaphore) and the point where a caller actually uses +// the channel. A concurrent TearDownChannelAndConnectionAsync nulls _model at any time; +// throwing this type instead of NullReferenceException lets the retry classifier in +// ExecuteRetryingPublishAsync skip MarkResetRequired — the concurrent teardown is already +// the reset. +internal sealed class ChannelTransientException(string message) : Exception(message); diff --git a/src/ServiceConnect.Client.RabbitMQ/Producer/OutboundHeaderBuilder.cs b/src/ServiceConnect.Client.RabbitMQ/Producer/OutboundHeaderBuilder.cs new file mode 100644 index 000000000..84cb3c0fa --- /dev/null +++ b/src/ServiceConnect.Client.RabbitMQ/Producer/OutboundHeaderBuilder.cs @@ -0,0 +1,170 @@ +using System.Collections.Concurrent; +using Microsoft.Extensions.Logging; +using RabbitMQ.Client; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; + +namespace ServiceConnect.Client.RabbitMQ; + +/// +/// Builds the outbound header dictionary and applied to every +/// message published by . Stamps the reserved framework headers +/// (DestinationAddress, MessageId, MessageType, SourceAddress, TimeSent, TypeName, +/// FullTypeName, ConsumerType, Language, optionally SourceMachine) and copies caller-supplied +/// headers underneath them. +/// +internal sealed class OutboundHeaderBuilder( + IBusConfiguration busConfiguration, + IQueueConfiguration queueConfiguration, + TimeProvider timeProvider, + ILogger logger) +{ + private const int StampedHeaderCount = 12; + + // Producer-stamped keys: callers cannot override these (the framework owns them). + // MessageId is deliberately NOT in this set — caller-supplied MessageId (e.g. Bus's + // authoritative stamp) is preserved by the !ContainsKey check in BuildHeaders below. + private static readonly HashSet OverwrittenHeaderKeys = new(StringComparer.Ordinal) + { + HeaderKeys.DestinationAddress, + HeaderKeys.MessageType, + HeaderKeys.SourceAddress, + HeaderKeys.TimeSent, + HeaderKeys.SourceMachine, + HeaderKeys.TypeName, + HeaderKeys.FullTypeName, + HeaderKeys.ConsumerType, + HeaderKeys.Language, + HeaderKeys.RoutingSlipHopsCompleted, + }; + + // Cache (FullName, AssemblyQualifiedName) per Type — these are constant for a given Type. + // Static so a process running multiple Producer instances pays the reflection cost once. + private static readonly ConcurrentDictionary TypeNameCache = new(); + + private readonly IBusConfiguration _busConfiguration = busConfiguration; + private readonly IQueueConfiguration _queueConfiguration = queueConfiguration; + private readonly TimeProvider _timeProvider = timeProvider; + private readonly ILogger _logger = logger; + + public Dictionary BuildHeaders(Type type, IReadOnlyDictionary? headers, string queueName, string messageType, int? routingSlipHopsCompleted = null) + { + // Build the final object-valued dictionary directly rather than populating a + // string-valued copy and then rewriting it. Pre-sized to the maximum + // number of stamped keys + any caller-provided entries. + var callerCount = headers?.Count ?? 0; + var result = new Dictionary(callerCount + StampedHeaderCount, StringComparer.Ordinal); + + if (headers is not null) + { + foreach (var kvp in headers) + { + if (OverwrittenHeaderKeys.Contains(kvp.Key)) + { + _logger.LogWarning( + "Caller-supplied reserved header '{Key}' will be overwritten by the framework", + kvp.Key); + continue; + } + result[kvp.Key] = kvp.Value; + } + } + + result[HeaderKeys.DestinationAddress] = queueName; + // MessageId is now Bus-authoritative; preserve the Bus-minted value. + // Only mint one here for callers that invoke the Producer directly (bypassing Bus). + if (!result.ContainsKey(HeaderKeys.MessageId)) + { + result[HeaderKeys.MessageId] = Guid.NewGuid().ToString(); + } + + result[HeaderKeys.MessageType] = messageType; + + result[HeaderKeys.SourceAddress] = _queueConfiguration.QueueName; + result[HeaderKeys.TimeSent] = FormatTimestamp(_timeProvider.GetUtcNow().UtcDateTime); + if (_busConfiguration.IncludeMachineNameInHeaders) + { + result[HeaderKeys.SourceMachine] = Environment.MachineName; + } + + var (fullName, aqn) = TypeNameCache.GetOrAdd(type, static t => (t.FullName!, t.AssemblyQualifiedName!)); + result[HeaderKeys.TypeName] = fullName; + result[HeaderKeys.FullTypeName] = aqn; + + result[HeaderKeys.ConsumerType] = "RabbitMQ"; + result[HeaderKeys.Language] = "C#"; + + // Stamped post-middleware: any caller-supplied or middleware-mutated entry for this key + // was already dropped by OverwrittenHeaderKeys above, so only the framework value lands. + if (routingSlipHopsCompleted is { } hops) + { + result[HeaderKeys.RoutingSlipHopsCompleted] = + hops.ToString(System.Globalization.CultureInfo.InvariantCulture); + } + + return result; + } + + /// + /// Builds by aliasing directly + /// into . No copy. Callers MUST NOT mutate + /// while a publish using the returned properties is in flight. + /// + /// + /// The fan-out SendAsync(Type) path re-stamps DestinationAddress, + /// MessageId, and TimeSent on a single baseHeaders dict between iterations. + /// Safety relies on publisher confirms (the default; the + /// PublisherAcknowledgements=false + PublishTimeout>0 combo is rejected by the + /// constructor): the prior await on PublishWithTimeoutAsync + /// returns only after the broker ack, by which time the wire frame is serialised and + /// RabbitMQ.Client no longer references the dict. The other three publish methods make + /// BuildBasicProperties the last touch before await PublishWithTimeoutAsync, + /// so no concurrent mutation is possible there. + /// + public BasicProperties BuildBasicProperties(Dictionary messageHeaders) + { + // Direct assign — Dictionary aligns with BasicProperties.Headers's + // IDictionary after BuildHeaders' return-type widening. Aliasing + // is intentional; OutboundHeaderBuilderAliasingTests.BuildBasicProperties_AssignsHeadersDirectly_WithoutCopy + // asserts the reference identity so a future refactor cannot silently introduce a copy. + var basicProperties = new BasicProperties + { + Headers = messageHeaders, + Persistent = true + }; + + if (messageHeaders.TryGetValue(HeaderKeys.MessageId, out var messageId)) + { + basicProperties.MessageId = messageId?.ToString(); + } + + if (messageHeaders.TryGetValue(HeaderKeys.Priority, out var priority)) + { + try + { + basicProperties.Priority = Convert.ToByte(priority, System.Globalization.CultureInfo.InvariantCulture); + } + // RabbitMQ priorities are advisory — failing the publish over a misconfigured priority is + // the wrong default. Soft-drop with enough context that the operator can see which value + // was bad and why. Catch only the conversion exceptions; anything else propagates. + catch (Exception ex) when (ex is FormatException or InvalidCastException or OverflowException) + { + _logger.LogError( + ex, + "Could not set message priority from value '{Value}' (type '{ValueType}'); priority must be convertible to byte (0..255). Continuing without priority.", + priority, + priority?.GetType().FullName ?? ""); + } + } + + return basicProperties; + } + + // Avoid StringBuilder allocation inside DateTime.ToString("O"). + internal static string FormatTimestamp(DateTime dt) + { + Span buffer = stackalloc char[33]; // "O" format max length + dt.TryFormat(buffer, out int charsWritten, "O"); + return new string(buffer[..charsWritten]); + } +} diff --git a/src/ServiceConnect.Client.RabbitMQ/Producer/Producer.cs b/src/ServiceConnect.Client.RabbitMQ/Producer/Producer.cs new file mode 100644 index 000000000..ebc52e55a --- /dev/null +++ b/src/ServiceConnect.Client.RabbitMQ/Producer/Producer.cs @@ -0,0 +1,851 @@ +using System.Collections.Concurrent; +using System.Diagnostics; +using Microsoft.Extensions.Logging; +using RabbitMQ.Client; +using ServiceConnect.Diagnostics; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; + +namespace ServiceConnect.Client.RabbitMQ; + +/// +/// RabbitMQ-backed implementation of for publishing and sending messages. +/// +internal sealed class Producer : IProducer +{ + /// Default maximum message body size, in bytes (64 KiB). + private const long DefaultMaxMessageSize = 64 * 1024; + + // Cache the computed exchange name (FullName with dots stripped) per FullName string. + private readonly ConcurrentDictionary _exchangeNameCache = new(StringComparer.Ordinal); + + private readonly IQueueConfiguration _queueConfiguration; + private readonly OutboundHeaderBuilder _headerBuilder; + private readonly ProducerConnection _producerConnection; + private readonly ILogger _logger; + private readonly TimeProvider _timeProvider; + private readonly SemaphoreSlim _publishLock = new(1, 1); + private readonly TimeSpan _publishTimeout; + private readonly ushort _retryCount; + private readonly ushort _retryTimeInSeconds; + private readonly TimeSpan _maxPublishWaitTime; + private int _disposed; + + /// Overrides the dispose lock-wait timeout for unit tests. + internal TimeSpan? DisposeTimeoutForTests; + + /// + /// Test seam: routed through to . + /// + internal Func>? CreateConnectionForTests + { + get => _producerConnection.CreateConnectionForTests; + set => _producerConnection.CreateConnectionForTests = value; + } + + /// + /// Test seam: when set, replaces the Task.Delay calls in the retry loop. + /// The delegate receives the computed jittered delay and the caller's cancellation token. + /// Production code leaves this null and calls Task.Delay directly. + /// + internal Func? RetryDelayForTests; + + /// + /// Initializes a new producer instance using the supplied ServiceConnect configuration. + /// + /// Transport settings used to configure RabbitMQ connectivity and retries. + /// Queue settings used when stamping message headers and resolving queue mappings. + /// Bus settings that control emitted message headers. + /// The logger used for producer lifecycle and retry logging. + /// An optional time provider used when stamping outbound message headers. + public Producer(ITransportConfiguration transportConfiguration, IQueueConfiguration queueConfiguration, IBusConfiguration busConfiguration, ILogger logger, TimeProvider? timeProvider = null) + { + _queueConfiguration = queueConfiguration; + ArgumentNullException.ThrowIfNull(busConfiguration); + _logger = logger; + _timeProvider = timeProvider ?? TimeProvider.System; + _headerBuilder = new OutboundHeaderBuilder(busConfiguration, queueConfiguration, _timeProvider, logger); + _producerConnection = new ProducerConnection(transportConfiguration, logger); + + var settings = transportConfiguration.ClientSettings; + MaximumMessageSize = GetSetting(settings, RabbitMQSettingKeys.MessageSize, DefaultMaxMessageSize, Convert.ToInt64); + _publishTimeout = GetSetting(settings, RabbitMQSettingKeys.PublishTimeout, TimeSpan.FromSeconds(30), v => (TimeSpan)v); + // Every publish path calls CancellationTokenSource.CancelAfter(_publishTimeout); the BCL + // accepts only non-negative TimeSpans or Timeout.InfiniteTimeSpan (-1ms). Any other negative + // value throws ArgumentOutOfRangeException at every publish, which the retry loop classifies + // as retriable and burns the full retryCount*retrySeconds budget against. Reject loudly here. + if (_publishTimeout < TimeSpan.Zero && _publishTimeout != Timeout.InfiniteTimeSpan) + { + throw new ArgumentOutOfRangeException( + nameof(transportConfiguration), + $"Setting '{RabbitMQSettingKeys.PublishTimeout}' must be non-negative or Timeout.InfiniteTimeSpan; got {_publishTimeout}."); + } + _retryCount = GetSetting(settings, RabbitMQSettingKeys.RetryCount, (ushort)60, Convert.ToUInt16); + _retryTimeInSeconds = GetSetting(settings, RabbitMQSettingKeys.RetrySeconds, (ushort)10, Convert.ToUInt16); + _maxPublishWaitTime = GetSetting(settings, RabbitMQSettingKeys.MaxPublishWaitTime, TimeSpan.FromSeconds(120), v => (TimeSpan)v); + // Reject a zero or negative wall-clock cap — either would fire on the first + // iteration before any publish attempt, burning the entire retry budget against + // an unreachable condition. Timeout.InfiniteTimeSpan disables the cap and is the + // documented opt-out. This is stricter than _publishTimeout's predicate by + // intent: a zero confirm-ack wait can be legitimate (CancelAfter(Zero) cancels + // immediately), whereas a zero wall-clock cap can never succeed. + if (_maxPublishWaitTime <= TimeSpan.Zero && _maxPublishWaitTime != Timeout.InfiniteTimeSpan) + { + throw new ArgumentOutOfRangeException( + nameof(transportConfiguration), + $"Setting '{RabbitMQSettingKeys.MaxPublishWaitTime}' must be positive or Timeout.InfiniteTimeSpan; got {_maxPublishWaitTime}."); + } + + // Reject the dangerous combination: explicit publisher-acks=false with a finite + // publish timeout is silent breakage. Without confirms, BasicPublishAsync returns + // as soon as the frame is on the wire — the linked CTS in PublishWithTimeoutAsync + // never fires for a stalled broker, so the configured timeout has no effect. + // Acks-on (the default) is the safe path; an explicit acks-off must accompany + // PublishTimeout=Zero or Timeout.InfiniteTimeSpan. + var publisherAcks = GetSetting(settings, RabbitMQSettingKeys.PublisherAcknowledgements, true, Convert.ToBoolean); + if (!publisherAcks && _publishTimeout > TimeSpan.Zero && _publishTimeout != Timeout.InfiniteTimeSpan) + { + throw new InvalidOperationException( + $"Conflicting RabbitMQ producer configuration: " + + $"{RabbitMQSettingKeys.PublisherAcknowledgements}=false but " + + $"{RabbitMQSettingKeys.PublishTimeout}={_publishTimeout.TotalSeconds:0.###}s. " + + "Without publisher acknowledgements, BasicPublishAsync returns once the frame is on the wire, " + + "so the publish timeout never fires for a stalled broker. " + + $"Either remove the {RabbitMQSettingKeys.PublisherAcknowledgements}=false override (the default, true, is safe), " + + $"or set {RabbitMQSettingKeys.PublishTimeout} to Timeout.InfiniteTimeSpan / TimeSpan.Zero."); + } + } + + private static T GetSetting(IReadOnlyDictionary settings, string key, T defaultValue, Func converter) + { + return settings.TryGetValue(key, out var value) ? converter(value) : defaultValue; + } + + // Return the cached exchange name for a type, keying on FullName so that + // assembly version churn or type forwarding (which changes AQN but not + // FullName) does not create duplicate entries for the same exchange. + private string GetExchangeName(Type type) + { + return _exchangeNameCache.GetOrAdd( + type.FullName ?? type.AssemblyQualifiedName!, + _ => ServiceConnect.Services.MessageTypeExchangeName.From(type)); + } + + private async Task EnsureConnectedAsync(CancellationToken cancellationToken) + { + ObjectDisposedException.ThrowIf(_disposed != 0, this); + await _producerConnection.EnsureConnectedAsync(cancellationToken).ConfigureAwait(false); + } + + /// + /// Executes under with retry on + /// retriable failures. Critically: and the inter-attempt + /// delay run OUTSIDE the lock, so a slow reconnect cannot block concurrent publishers. + /// On retriable failure the lock is released, + /// is called, then the next attempt's prologue calls which + /// drives the reconnect under _connectionSemaphore. + /// + private async Task ExecuteRetryingPublishAsync( + Func lockedAction, + CancellationToken cancellationToken) + { + Exception? lastException = null; + var publishStartTimestamp = Stopwatch.GetTimestamp(); + for (int attempt = 0; attempt <= _retryCount; attempt++) + { + cancellationToken.ThrowIfCancellationRequested(); + if (_maxPublishWaitTime != Timeout.InfiniteTimeSpan + && Stopwatch.GetElapsedTime(publishStartTimestamp) >= _maxPublishWaitTime) + { + throw new TimeoutException( + $"Publish wall-clock budget {_maxPublishWaitTime.TotalSeconds:0.###}s exhausted " + + $"after {attempt} attempt(s); last error: {lastException?.Message ?? ""}.", + lastException); + } + try + { + // EnsureConnectedAsync runs OUTSIDE _publishLock so a slow reconnect (held under + // _connectionSemaphore) never serialises concurrent publishers behind it. + await EnsureConnectedAsync(cancellationToken).ConfigureAwait(false); + await _publishLock.WaitAsync(cancellationToken).ConfigureAwait(false); + try + { + // Re-check after acquiring the lock — DisposeAsync may have set _disposed + // and torn down the channel while we were waiting. + ObjectDisposedException.ThrowIf(_disposed != 0, this); + // Also re-check the channel: between EnsureConnectedAsync returning and + // _publishLock.WaitAsync acquiring, another publisher's slow-path teardown + // (driven by MarkResetRequired from an earlier timeout) can land + // ProducerConnection._model = null. Reading `Channel` here would throw + // InvalidOperationException with the misleading "before EnsureConnected" + // message AND classify retriable, which would call MarkResetRequired again — + // burning reconnect budget for a state that's already being reset. Throw + // the typed ChannelTransientException instead so the retriable path skips + // the redundant reset. + if (_producerConnection.TryGetChannel() is null) + { + throw new ChannelTransientException( + "Producer channel was torn down concurrently between connect and publish; retrying."); + } + await lockedAction(cancellationToken).ConfigureAwait(false); + return; + } + finally { _publishLock.Release(); } + } + catch (global::RabbitMQ.Client.Exceptions.PublishException pex) + { + // Broker-side nack — poison message, not a transport failure. Log and propagate + // immediately; retrying would just re-fail against the same policy condition. + _logger.LogWarning(pex, "Broker nacked publish: {Reason}", pex.Message); + throw; + } + catch (OperationCanceledException) { throw; } + catch (ObjectDisposedException) + { + // The producer was disposed mid-loop: EnsureConnectedAsync (or the post-lock + // disposed re-check) sees _disposed flipped and throws. Retrying would burn + // the full retryCount * retrySeconds budget against a permanently dead instance + // (default 60 * 10s = 10 min). Pre-restructure this could not happen because + // _publishLock spanned every retry attempt; now the lock is released between + // attempts so dispose can race in. Mirror the predicate used in + // ProducerConnection.EnsureConnectedAsync's Retry.DoAsync. + throw; + } + catch (ChannelTransientException ex) + { + // Channel was torn down between EnsureConnectedAsync and lock acquisition. + // The teardown is already the reset; retrying without MarkResetRequired drives + // the next attempt's EnsureConnectedAsync prologue (rebuild via _connectionSemaphore) + // without doubling the reconnect budget. Inter-attempt delay still runs OUTSIDE + // the lock so other publishers can interleave. + lastException = ex; + if (attempt < _retryCount) + { + var transientDelay = JitteredRetryDelay(); + _logger.LogDebug( + "Publish attempt {Attempt}/{Total} hit transient channel state; retrying after {Delay:0.##}s", + attempt + 1, + _retryCount + 1, + transientDelay.TotalSeconds); + await (RetryDelayForTests?.Invoke(transientDelay, cancellationToken) ?? Task.Delay(transientDelay, cancellationToken)).ConfigureAwait(false); + continue; + } + throw; + } + catch (Exception ex) when (IsRetriablePublishException(ex)) + { + lastException = ex; + _producerConnection.MarkResetRequired(); + if (attempt < _retryCount) + { + // Inter-attempt delay also runs OUTSIDE the lock so other publishers can interleave. + // Mean is fixed (not exponential) — connection-create inside EnsureConnectedAsync + // already does its own exponential backoff via Retry.DoAsync, so layering exponentials + // would double-grow the wall-clock budget. ±50% jitter is applied per attempt so + // concurrent producers do not reconnect in lockstep after a broker restart. + var retriableDelay = JitteredRetryDelay(); + _logger.LogWarning( + ex, + "Publish attempt {Attempt}/{Total} failed; will retry after {Delay:0.##}s", + attempt + 1, + _retryCount + 1, + retriableDelay.TotalSeconds); + await (RetryDelayForTests?.Invoke(retriableDelay, cancellationToken) ?? Task.Delay(retriableDelay, cancellationToken)).ConfigureAwait(false); + continue; + } + throw; + } + } + + // Defensive: every loop arm either returns or throws; this is a regression guard. + throw lastException ?? new InvalidOperationException( + "ExecuteRetryingPublishAsync exited without success or exception."); + } + + // Produces a uniformly-distributed delay in [mean*0.5, mean*1.5) around the configured + // retry mean. Random.Shared is thread-safe under .NET 6+. Keeping the mean fixed (rather + // than exponential) avoids stacking two independent exponential growth curves: the + // connection-creation path inside EnsureConnectedAsync already applies exponential backoff + // via Retry.DoAsync. The ±50% jitter ensures concurrent producers don't all retry in + // lockstep after a broker restart even though the mean wall-clock budget is unchanged. + private TimeSpan JitteredRetryDelay() + { + var jitterFactor = 0.5 + Random.Shared.NextDouble(); // [0.5, 1.5) + return TimeSpan.FromSeconds(_retryTimeInSeconds * jitterFactor); + } + + // Broker-side nacks (PublishException) are usually poison messages — rejected by a + // policy (e.g. max-length, unroutable, access denied). Retrying them burns the entire + // retry budget against a condition that will not heal, and worse, triggers a reconnect + // loop that tears down the connection for a publish-layer error. Only transport-level + // failures should flow into the reconnect-retry path. + // + // OperationCanceledException is caller-driven cancellation — retrying it would violate + // the caller's intent. + // + // TimeoutException (from PublishWithTimeoutAsync's _publishTimeout firing) IS retriable: + // the publish-confirm ack timer fired before the broker acked, and a fresh channel + // built by the next attempt's EnsureConnectedAsync prologue can resubmit. The framework's + // at-least-once delivery contract (IBus.cs:9-27) permits duplicate delivery; consumers + // must be idempotent or use a BeforeConsuming + OnConsumedSuccessfully dedup filter + // pair. The same BasicProperties (including MessageId) is reused across attempts, so + // dedup by MessageId is valid. + private static bool IsRetriablePublishException(Exception ex) + { + if (ex is global::RabbitMQ.Client.Exceptions.PublishException) + { + return false; + } + + if (ex is OperationCanceledException) + { + return false; + } + + return true; + } + + /// + /// Publishes a message to the exchange derived from the specified message type. + /// + /// The logical message type used to determine the publish exchange and stamped headers. + /// The serialized message body. + /// Optional custom headers to include with the message. + /// A token used to cancel the publish operation. + public Task PublishAsync(Type type, ReadOnlyMemory body, IReadOnlyDictionary? headers = null, CancellationToken cancellationToken = default) + => PublishAsync(type, body, routingKey: null, headers, cancellationToken); + + public async Task PublishAsync(Type type, ReadOnlyMemory body, string? routingKey, IReadOnlyDictionary? headers = null, CancellationToken cancellationToken = default) + { + ArgumentNullException.ThrowIfNull(type); + cancellationToken.ThrowIfCancellationRequested(); + if (body.Length > MaximumMessageSize) + { + throw new InvalidOperationException( + $"Message size {body.Length} bytes exceeds maximum allowed size of {MaximumMessageSize} bytes."); + } + + // Capture timestamp before EnsureConnectedAsync — connect latency is part of the + // user-visible publish duration. See EmitPublishMetrics for the empty-destination fallback. + var startTimestamp = Stopwatch.GetTimestamp(); + string exchangeName = string.Empty; + bool succeeded = false; + Exception? failure = null; + // RabbitMQ.Client interprets a null routing key as empty string; normalise here so + // metric tagging and BasicPublishAsync see the same value. Fanout exchanges ignore + // routing keys; topic/direct exchanges use them for routing — the caller may have + // configured a non-fanout exchange override and supplied a key via PublishOptions.RoutingKey. + var resolvedRoutingKey = routingKey ?? string.Empty; + + // Build BasicProperties once, outside the retry loop. The same MessageId is reused + // across all retry attempts so consumer-side dedup filters (BeforeConsuming + + // OnConsumedSuccessfully) can recognise duplicates by MessageId, per the at-least-once + // contract documented on IBus. + var messageHeaders = _headerBuilder.BuildHeaders(type, headers, _queueConfiguration.QueueName, "Publish"); + var basicProperties = _headerBuilder.BuildBasicProperties(messageHeaders); + + // Compute the exchange name once per type and cache it. + exchangeName = GetExchangeName(type); + + try + { + await ExecuteRetryingPublishAsync(async ct => + { + // Only issue ExchangeDeclareAsync once per connection — skip on subsequent publishes. + await _producerConnection.EnsureExchangeDeclaredAsync(exchangeName, ExchangeType.Fanout, ct).ConfigureAwait(false); + await PublishWithTimeoutAsync( + _producerConnection.Channel, + exchangeName, + resolvedRoutingKey, + false, + basicProperties, + body, + ct).ConfigureAwait(false); + }, cancellationToken).ConfigureAwait(false); + + succeeded = true; + } + catch (Exception ex) + { + failure = ex; + throw; + } + finally + { + EmitPublishMetrics(startTimestamp, exchangeName, succeeded, failure); + } + } + + /// + /// Sends a message to each endpoint mapped to the specified message type. + /// + /// The logical message type used to resolve destination queues. + /// The serialized message body. + /// Optional custom headers to include with the message. + /// A token used to cancel the send operation. + /// + /// When the message type maps to multiple queues, every endpoint is attempted; per-endpoint + /// failures are collected and surface as an at the end of + /// the loop. Cancellation via propagates as + /// directly and aborts the remaining iterations. + /// + public async Task SendAsync(Type type, ReadOnlyMemory body, IReadOnlyDictionary? headers = null, CancellationToken cancellationToken = default) + { + ArgumentNullException.ThrowIfNull(type); + cancellationToken.ThrowIfCancellationRequested(); + if (body.Length > MaximumMessageSize) + { + throw new InvalidOperationException( + $"Message size {body.Length} bytes exceeds maximum allowed size of {MaximumMessageSize} bytes."); + } + + if (!_queueConfiguration.TryGetQueueMapping(type, out IReadOnlyList? endPoints)) + { + throw new InvalidOperationException($"No queue mapping configured for message type '{type.FullName}'. Register a mapping via AddQueueMapping."); + } + + // Build base headers once outside the loop. DestinationAddress, MessageId, and TimeSent + // are re-stamped per endpoint because each on-wire message is logically distinct. + // The aliasing-safety invariant: publisher confirms gate the prior await before the + // next iteration mutates baseHeaders, so reuse is safe. CorrelationId is the + // cross-fan-out correlator and is NOT re-minted here. + var baseHeaders = _headerBuilder.BuildHeaders(type, headers, string.Empty, "Send"); + List? endpointFailures = null; + foreach (string endPoint in endPoints) + { + baseHeaders[HeaderKeys.DestinationAddress] = endPoint; + baseHeaders[HeaderKeys.MessageId] = Guid.NewGuid().ToString(); + baseHeaders[HeaderKeys.TimeSent] = OutboundHeaderBuilder.FormatTimestamp(_timeProvider.GetUtcNow().UtcDateTime); + var basicProperties = _headerBuilder.BuildBasicProperties(baseHeaders); + + // Per-endpoint metric scope: each delivery on the fan-out is a logically + // independent publish — record duration + success/error individually so the + // tag set carries the correct destination queue and partial-fan-out failures + // are visible per endpoint. + var endpointStart = Stopwatch.GetTimestamp(); + bool endpointSucceeded = false; + Exception? endpointFailure = null; + try + { + // Each endpoint is independently retriable; ExecuteRetryingPublishAsync releases + // _publishLock between endpoints so other publishers may interleave. The + // aliasing invariant still holds — publisher confirms gate each endpoint's + // await before the next iteration mutates baseHeaders. + await ExecuteRetryingPublishAsync(async ct => + { + await PublishWithTimeoutAsync( + _producerConnection.Channel, + string.Empty, + endPoint, + // mandatory:true — Send routes via the default exchange + queue-name + // routing key. With publisher confirms, an unroutable publish (queue + // not declared, typo, deleted) surfaces as PublishException rather + // than being silently dropped at the broker. IsRetriablePublishException + // returns false for PublishException, so the failure surfaces to the + // caller's fan-out catch and is collected into the AggregateException. + true, + basicProperties, + body, + ct).ConfigureAwait(false); + }, cancellationToken).ConfigureAwait(false); + endpointSucceeded = true; + } + catch (OperationCanceledException ex) when (cancellationToken.IsCancellationRequested) + { + // Caller-initiated cancellation aborts subsequent endpoints, but if prior + // endpoints already failed in this fan-out, those failures must NOT be lost: + // aggregate them with the OCE. With no prior failures, OCE propagates plain + // so caller-side cancellation handlers see the canonical type. + // + // The `when (cancellationToken.IsCancellationRequested)` filter is load-bearing: + // an OCE thrown from a middleware-internal linked CTS (custom timeout, per- + // endpoint deadline) carries a different token and is NOT caller cancellation. + // Those fall through to the generic catch and aggregate as endpoint failures, + // matching the semantics of Bus.SendToManyAsync. + endpointFailure = ex; + if (endpointFailures is { Count: > 0 }) + { + endpointFailures.Add(ex); + throw new AggregateException( + $"One or more endpoints failed during fan-out send for message type '{type.FullName}', and a later endpoint was cancelled.", + endpointFailures); + } + throw; + } + catch (ObjectDisposedException ex) + { + // The producer is permanently dead; retrying against further endpoints would + // emit N redundant failure metrics and produce an AggregateException of N + // identical ODEs. Aggregate any prior failures with this ODE and abort the + // fan-out so the caller sees a single ODE-shaped failure on a disposed + // producer. + endpointFailure = ex; + if (endpointFailures is { Count: > 0 }) + { + endpointFailures.Add(ex); + throw new AggregateException( + $"One or more endpoints failed during fan-out send for message type '{type.FullName}', and the producer was disposed mid-fan-out.", + endpointFailures); + } + throw; + } + catch (Exception ex) + { + endpointFailure = ex; + (endpointFailures ??= []).Add(ex); + } + finally + { + EmitPublishMetrics(endpointStart, endPoint, endpointSucceeded, endpointFailure); + } + } + + if (endpointFailures is { Count: > 0 }) + { + throw new AggregateException( + $"One or more endpoints failed during fan-out send for message type '{type.FullName}'.", + endpointFailures); + } + } + + /// + /// Sends a message directly to the specified endpoint. + /// + /// The destination queue name. + /// The logical message type used when stamping headers. + /// The serialized message body. + /// Optional custom headers to include with the message. + /// A token used to cancel the send operation. + public Task SendAsync(string endPoint, Type type, ReadOnlyMemory body, IReadOnlyDictionary? headers = null, CancellationToken cancellationToken = default) + => SendAsync(endPoint, type, body, routingSlipHopsCompleted: null, headers, cancellationToken); + + /// + public async Task SendAsync(string endPoint, Type type, ReadOnlyMemory body, int? routingSlipHopsCompleted, IReadOnlyDictionary? headers = null, CancellationToken cancellationToken = default) + { + ArgumentNullException.ThrowIfNull(type); + cancellationToken.ThrowIfCancellationRequested(); + if (string.IsNullOrWhiteSpace(endPoint)) + { + throw new ArgumentException($"Cannot send message of type {type} to empty endpoint", nameof(endPoint)); + } + + if (body.Length > MaximumMessageSize) + { + throw new InvalidOperationException( + $"Message size {body.Length} bytes exceeds maximum allowed size of {MaximumMessageSize} bytes."); + } + + var startTimestamp = Stopwatch.GetTimestamp(); + bool succeeded = false; + Exception? failure = null; + + // Build BasicProperties once, outside the retry loop. The same MessageId is reused + // across all retry attempts so consumer-side dedup filters (BeforeConsuming + + // OnConsumedSuccessfully) can recognise duplicates by MessageId, per the at-least-once + // contract documented on IBus. + var messageHeaders = _headerBuilder.BuildHeaders(type, headers, endPoint, "Send", routingSlipHopsCompleted); + var basicProperties = _headerBuilder.BuildBasicProperties(messageHeaders); + + try + { + await ExecuteRetryingPublishAsync(async ct => + { + await PublishWithTimeoutAsync( + _producerConnection.Channel, + string.Empty, + endPoint, + // mandatory:true — Send to a specific endpoint must surface unroutable + // (queue not declared, typo, deleted) as PublishException instead of + // silently dropping at the broker. See SendAsync(Type) for the rationale. + true, + basicProperties, + body, + ct).ConfigureAwait(false); + }, cancellationToken).ConfigureAwait(false); + + succeeded = true; + } + catch (Exception ex) + { + failure = ex; + throw; + } + finally + { + EmitPublishMetrics(startTimestamp, endPoint, succeeded, failure); + } + } + + /// + /// Sends raw bytes directly to the specified endpoint. + /// + /// The destination queue name. + /// The logical message type the packet represents; used to stamp the reserved type headers authoritatively. + /// The raw payload to send. + /// Optional custom headers to include with the packet. + /// A token used to cancel the send operation. + public async Task SendBytesAsync(string endPoint, Type type, ReadOnlyMemory packet, IReadOnlyDictionary? headers = null, CancellationToken cancellationToken = default) + { + ArgumentNullException.ThrowIfNull(type); + cancellationToken.ThrowIfCancellationRequested(); + if (string.IsNullOrWhiteSpace(endPoint)) + { + throw new ArgumentException($"Cannot send packet of type {type} to empty endpoint", nameof(endPoint)); + } + + if (packet.Length > MaximumMessageSize) + { + throw new InvalidOperationException( + $"Message size {packet.Length} bytes exceeds maximum allowed size of {MaximumMessageSize} bytes."); + } + + var startTimestamp = Stopwatch.GetTimestamp(); + bool succeeded = false; + Exception? failure = null; + + // Build BasicProperties once, outside the retry loop. The same MessageId is reused + // across all retry attempts so consumer-side dedup filters (BeforeConsuming + + // OnConsumedSuccessfully) can recognise duplicates by MessageId, per the at-least-once + // contract documented on IBus. + var messageHeaders = _headerBuilder.BuildHeaders(type, headers, endPoint, HeaderKeys.ByteStream); + var basicProperties = _headerBuilder.BuildBasicProperties(messageHeaders); + + try + { + await ExecuteRetryingPublishAsync(async ct => + { + await PublishWithTimeoutAsync( + _producerConnection.Channel, + string.Empty, + endPoint, + // mandatory:true — SendBytes to a specific endpoint must surface + // unroutable (queue not declared, typo, deleted) as PublishException + // instead of silently dropping at the broker. Same rationale as SendAsync. + true, + basicProperties, + packet, + ct).ConfigureAwait(false); + }, cancellationToken).ConfigureAwait(false); + + succeeded = true; + } + catch (Exception ex) + { + failure = ex; + throw; + } + finally + { + EmitPublishMetrics(startTimestamp, endPoint, succeeded, failure); + } + } + + // Emits messaging.publish.duration (always) and messaging.client.published.messages + // (only on success). Tags follow OTel semantic conventions for messaging. + // Caller passes the per-attempt destination — the exchange for fan-out publishes, + // the queue name for direct sends. An empty/null destination indicates the publish + // failed before the destination was resolved (e.g. EnsureConnectedAsync threw); we + // emit "" rather than dropping the metric so the failure is still visible. + private static void EmitPublishMetrics(long startTimestamp, string destination, bool succeeded, Exception? failure) + { + var elapsed = Stopwatch.GetElapsedTime(startTimestamp).TotalSeconds; + var resolvedDestination = string.IsNullOrEmpty(destination) ? "" : destination; + + var durationTags = new TagList + { + { "messaging.system", "rabbitmq" }, + { "messaging.operation.type", "publish" }, + { "messaging.operation.name", "publish" }, + { "messaging.destination.name", resolvedDestination }, + }; + // TimeoutException from PublishWithTimeoutAsync indicates the broker ack didn't arrive + // within the budget — the message MAY still have been delivered. The dedicated + // PublishConfirmTimeouts counter (emitted in PublishWithTimeoutAsync) is the + // authoritative signal; suppress error.type here so dashboards don't count + // confirm-timeouts as definite failures alongside the dedicated counter. + if (failure is { } nonTimeoutFailure and not TimeoutException) + { + durationTags.Add("error.type", ExceptionTypeMapper.Map(nonTimeoutFailure)); + } + ServiceConnectMeter.RecordPublishDuration(elapsed, durationTags); + + if (succeeded) + { + var successTags = new TagList + { + { "messaging.system", "rabbitmq" }, + { "messaging.operation.type", "publish" }, + { "messaging.operation.name", "publish" }, + { "messaging.destination.name", resolvedDestination }, + }; + ServiceConnectMeter.AddPublishedMessage(successTags); + } + } + + + /// + /// Releases the producer's RabbitMQ channel, connection, and synchronization primitives. + /// + public async ValueTask DisposeAsync() + { + if (Interlocked.Exchange(ref _disposed, 1) != 0) + { + return; + } + + // Wait for in-flight publishes and (re)connections to complete before tearing down + // the channel/connection. The two waits SHARE a single stopwatch budget so worst-case + // dispose latency is bounded by disposeTimeout, not 2 * disposeTimeout. After the + // budget is exhausted we proceed with forced teardown regardless. + var disposeTimeout = DisposeTimeoutForTests ?? TimeSpan.FromSeconds(30); + var stopwatch = System.Diagnostics.Stopwatch.StartNew(); + var publishLockAcquired = false; + try + { + publishLockAcquired = await _publishLock.WaitAsync(disposeTimeout).ConfigureAwait(false); + if (!publishLockAcquired) + { + _logger.LogWarning( + "Producer dispose could not acquire publish lock within {Timeout}; forcing teardown", + disposeTimeout); + } + } + catch (Exception ex) + { + _logger.LogWarning(ex, "Producer dispose lock-wait failed; forcing teardown"); + } + finally + { + // Best-effort teardown ALWAYS runs, whether or not we held the lock. + // A stuck BasicPublishAsync will observe the channel closing and throw — + // that is the correct shutdown signal for an in-flight publisher. + var remaining = disposeTimeout - stopwatch.Elapsed; + if (remaining < TimeSpan.Zero) + { + remaining = TimeSpan.Zero; + } + + // Release the publish lock BEFORE CloseAsync. A parallel publisher already + // past EnsureConnectedAsync and blocked at _publishLock.WaitAsync would + // otherwise wait the full disposeTimeout + close duration before its + // post-acquire ObjectDisposedException re-check fires. Releasing first lets + // that publisher acquire-and-trip-ODE in the typical microsecond range while + // CloseAsync proceeds in parallel; `_disposed=1` is already set above so the + // unblocked publisher cannot start new work, only short-circuit out. + if (publishLockAcquired) + { + _publishLock.Release(); + } + + try { await _producerConnection.CloseAsync(remaining).ConfigureAwait(false); } + catch (Exception ex) { _logger.LogWarning(ex, "Producer connection close failed during dispose"); } + + // _publishLock is intentionally NOT Disposed: + // SemaphoreSlim.Dispose only releases the lazily-allocated WaitHandle, and + // we never call AvailableWaitHandle, so disposal is a functional no-op. An + // in-flight publisher's `finally { _publishLock.Release(); }` running on a + // disposed semaphore throws ObjectDisposedException out of the unwind path, + // which we cannot prevent without holding GC references to every caller. + // The field is GC'd with the Producer instance. + } + } + + /// + /// Gets the maximum allowed outbound message size, in bytes. + /// + public long MaximumMessageSize { get; } + + /// + public bool IsHealthy => _producerConnection.IsHealthy(); + + /// + public bool HasAttemptedConnection => _producerConnection.HasAttemptedConnection; + + /// + public bool SupportsRoutingKey => true; + + /// + public ProducerHealthSnapshot GetHealthSnapshot() + => _producerConnection.GetSnapshot(); + + /// + /// Publishes via IChannel.BasicPublishAsync under a linked + /// that fires after _publishTimeout. + /// + /// + /// + /// If the caller's fires, an + /// propagates unchanged. + /// + /// + /// If the broker ack does not arrive within _publishTimeout, the linked CTS fires + /// and the method throws . It also calls + /// so the next attempt's + /// EnsureConnectedAsync prologue rebuilds the channel before re-publishing. + /// The exception flows into ExecuteRetryingPublishAsync's retriable arm: + /// a fresh channel is built and the same BasicProperties (including + /// MessageId) is re-published. The framework's at-least-once contract + /// () permits the broker to deliver both + /// the original and the retry — consumers must be idempotent or use a + /// BeforeConsuming + OnConsumedSuccessfully dedup filter pair to + /// short-circuit duplicates. + /// + /// + private async ValueTask PublishWithTimeoutAsync( + IChannel channel, + string exchange, + string routingKey, + bool mandatory, + BasicProperties basicProperties, + ReadOnlyMemory body, + CancellationToken cancellationToken) + { + using var linked = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken); + linked.CancelAfter(_publishTimeout); + try + { + await channel.BasicPublishAsync( + exchange, + routingKey, + mandatory, + basicProperties, + body, + linked.Token).ConfigureAwait(false); + } + // Only remap to TimeoutException when our linked CTS fired AND the caller's token didn't. + // A spurious OCE (neither token cancelled) propagates as cancellation; a caller-requested + // cancellation wins priority over timeout mapping. + catch (OperationCanceledException) when (linked.IsCancellationRequested && !cancellationToken.IsCancellationRequested) + { + // Mark the channel for reset on the next publish. The reset runs inside EnsureConnectedAsync, + // which is called BEFORE _publishLock.WaitAsync, so concurrent publishers are not blocked + // behind it. We do NOT reconnect here: doing so would hold _publishLock for up to + // retryCount * retrySeconds (default 60 * 10s = 10 minutes) blocking every other publisher. + // The broker may still eventually ack this timed-out publish; a fresh connection + channel + // on the next publish clears the confirm-tracker's state before any subsequent publish runs. + _producerConnection.MarkResetRequired(); + + // Tag schema matches the sibling publish-duration histograms (Producer.cs:580): + // operation.type for cross-metric dashboards, system for messaging-system filter, + // destination.name for per-queue alerting. SendAsync passes exchange="" with the + // real destination on routingKey (point-to-point goes through the default direct + // exchange), so prefer routingKey when exchange is empty rather than emitting a + // placeholder that obscures which queue stalled. + var destinationTag = !string.IsNullOrEmpty(exchange) + ? exchange + : (!string.IsNullOrEmpty(routingKey) ? routingKey : ""); + ServiceConnectMeter.AddPublishConfirmTimeout(new TagList + { + { "messaging.system", "rabbitmq" }, + { "messaging.operation.type", "publish" }, + { "messaging.destination.name", destinationTag }, + }); + + throw new TimeoutException( + $"BasicPublishAsync exceeded the configured publish timeout of {_publishTimeout.TotalSeconds:0.###}s " + + $"(exchange='{exchange}', routingKey='{routingKey}', messageId='{basicProperties.MessageId ?? ""}'). " + + "The broker may be stalled or the connection may be half-open."); + } + } +} + diff --git a/src/ServiceConnect.Client.RabbitMQ/Producer/ProducerConnection.cs b/src/ServiceConnect.Client.RabbitMQ/Producer/ProducerConnection.cs new file mode 100644 index 000000000..9a6b5c41d --- /dev/null +++ b/src/ServiceConnect.Client.RabbitMQ/Producer/ProducerConnection.cs @@ -0,0 +1,611 @@ +using System.Collections.Concurrent; +using System.Reflection; +using System.Threading.RateLimiting; +using Microsoft.Extensions.Logging; +using RabbitMQ.Client; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; + +namespace ServiceConnect.Client.RabbitMQ; + +/// +/// Owns the RabbitMQ and used by +/// to publish, plus the per-connection caches (declared +/// exchanges) and reconnect/teardown lifecycle. Producer delegates connection +/// concerns here and keeps publish orchestration to itself. +/// +internal sealed class ProducerConnection +{ + /// Default publish-retry attempt count. + private const ushort DefaultRetryCount = 60; + /// Default delay between publish retries, in seconds. + private const ushort DefaultRetryTimeInSeconds = 10; + /// Default cap on outstanding publisher confirms when publisher acks are enabled. + private const int DefaultMaxOutstandingPublishConfirms = 256; + + // Cache process/assembly name — computed once at startup, reused on every reconnect. + private static readonly string ProducerName = Assembly.GetEntryAssembly()?.GetName().Name + ?? System.Diagnostics.Process.GetCurrentProcess().ProcessName; + + private readonly ITransportConfiguration _transportConfiguration; + private readonly ILogger _logger; + private readonly ConnectionLifecycleHooks _lifecycle; + private readonly string[] _hosts; + private readonly ushort _retryCount; + private readonly ushort _retryTimeInSeconds; + private readonly bool _publisherAcks; + // Track which exchange names have already been declared on the *current* connection. + // Stamped with the connection generation rather than a bool so a publisher that observed + // a `true` entry on connection #1 cannot short-circuit re-declare on connection #2 in + // the window between `_connectionSemaphore` releasing in EnsureConnectedAsync (where + // _connectionGeneration was bumped and the cache cleared) and the publisher's subsequent + // ContainsKey check. A stale entry's generation no longer matches `_connectionGeneration`, + // so the publisher always re-declares on the new channel. + private readonly ConcurrentDictionary _declaredExchanges = new(StringComparer.Ordinal); + // Monotonic counter — bumped inside the connection semaphore on every successful + // (re)connect. Read by EnsureExchangeDeclaredAsync to validate cache entries. + private long _connectionGeneration; + private readonly SemaphoreSlim _connectionSemaphore = new(1, 1); + + private ConnectionFactory? _connectionFactory; + private volatile IChannel? _model; + private volatile IConnection? _connection; + // ConcurrencyLimiter is the bound on outstanding publisher confirms passed into + // RabbitMQ.Client's CreateChannelOptions. The driver does not own user-supplied + // limiters; each connection owns its limiter for its lifetime. Holding the reference + // here lets TearDown dispose it, and CreateConnectionAsync defensively disposes any + // predecessor before installing the replacement — preventing a limiter rooted by the + // closed channel from accumulating unreleased counts across reconnects. + private RateLimiter? _publisherRateLimiter; + private volatile bool _connected; + + // Set by Producer.PublishWithTimeoutAsync when a publish times out (broker confirm did not + // arrive within the publish budget). The next EnsureConnectedAsync drives the reconnect off + // the publish lock so concurrent publishers are not blocked behind a worst-case retry budget. + private int _resetRequired; + + // Set by CloseAsync before its semaphore-wait. CreateConnectionAsync re-checks AFTER assigning + // _connection/_model so a dispose that timed out on the semaphore (and forced teardown anyway) + // is followed by the in-flight create tearing down its own just-built connection rather than + // orphaning it on the disposed instance. + private int _disposed; + + // Flipped to 1 on the first EnsureConnectedAsync call. Stays true for the producer's lifetime + // so the health check can distinguish "lazy, not yet tried" from "tried and currently failed". + private int _hasAttemptedConnection; + + public bool HasAttemptedConnection => Volatile.Read(ref _hasAttemptedConnection) != 0; + + // Test hook consumed by Producer's pass-through property. Setting this on Producer + // routes through to here so existing test code (`producer.CreateConnectionForTests = ...`) + // is unchanged. + internal Func>? CreateConnectionForTests; + + public ProducerConnection(ITransportConfiguration transportConfiguration, ILogger logger) + { + ArgumentNullException.ThrowIfNull(transportConfiguration); + ArgumentNullException.ThrowIfNull(logger); + if (string.IsNullOrEmpty(transportConfiguration.Host)) + { + throw new ArgumentException("transportConfiguration.Host must be set to a non-empty comma-separated host list.", nameof(transportConfiguration)); + } + _transportConfiguration = transportConfiguration; + _logger = logger; + _lifecycle = new ConnectionLifecycleHooks(logger); + + var settings = transportConfiguration.ClientSettings; + _hosts = transportConfiguration.Host.Split(','); + _retryCount = GetSetting(settings, RabbitMQSettingKeys.RetryCount, DefaultRetryCount, Convert.ToUInt16); + _retryTimeInSeconds = GetSetting(settings, RabbitMQSettingKeys.RetrySeconds, DefaultRetryTimeInSeconds, Convert.ToUInt16); + // Default flipped to true so callers get publisher-confirm gating out of the box. + // Two safety properties depend on it: PublishWithTimeoutAsync's timeout actually + // enforces against a stalled broker, and OutboundHeaderBuilder.BuildBasicProperties' + // aliasing invariant on the SendAsync(Type) fan-out (the broker ack gates the + // next iteration's re-stamping of baseHeaders) holds. Explicit opt-out via + // SetClientSetting("PublisherAcknowledgements", false) is still permitted, but the + // Producer constructor rejects the dangerous combination of acks-off + nonzero + // PublishTimeout at startup. + _publisherAcks = GetSetting(settings, RabbitMQSettingKeys.PublisherAcknowledgements, true, Convert.ToBoolean); + } + + private static T GetSetting(IReadOnlyDictionary settings, string key, T defaultValue, Func converter) + { + return settings.TryGetValue(key, out var value) ? converter(value) : defaultValue; + } + + /// + /// Resolves the cap on outstanding publisher confirms from ClientSettings, falling back + /// to when the setting is unset. Throws on + /// non-positive values so misconfiguration surfaces loudly. Numeric coercion matches the + /// convention used elsewhere in this codebase (ConnectionFactoryBuilder.ConvertSettingToInt32, + /// Convert.ToInt32 / ToInt64 / ToUInt16) so configuration sources that produce + /// long, string, or other numeric types (e.g. IConfiguration.GetValue, + /// JSON binders) bind successfully without forcing the caller to cast first. + /// + internal static int ResolveMaxOutstandingPublishConfirms(ITransportConfiguration transport) + { + if (!transport.ClientSettings.TryGetValue(RabbitMQSettingKeys.MaxOutstandingPublishConfirms, out var raw)) + { + return DefaultMaxOutstandingPublishConfirms; + } + int permits; + try + { + permits = Convert.ToInt32(raw, System.Globalization.CultureInfo.InvariantCulture); + } + catch (Exception ex) when (ex is FormatException or InvalidCastException or OverflowException) + { + throw new InvalidOperationException( + $"Setting '{RabbitMQSettingKeys.MaxOutstandingPublishConfirms}' must be convertible to Int32; got value '{raw}' of type '{raw?.GetType().FullName ?? ""}'.", + ex); + } + if (permits <= 0) + { + throw new InvalidOperationException( + $"Setting '{RabbitMQSettingKeys.MaxOutstandingPublishConfirms}' must be positive; got {permits}."); + } + return permits; + } + + /// + /// The current RabbitMQ channel. Caller is responsible for ensuring the connection is + /// established (via ) and for serializing publishes + /// against the channel. + /// + public IChannel Channel => _model ?? throw new InvalidOperationException( + "ProducerConnection.Channel accessed before EnsureConnectedAsync established a channel."); + + /// + /// Tolerant variant of for the small TOCTOU window between + /// returning healthy and the caller acquiring its + /// own publish lock — a concurrent reset (slow-path teardown driven by another + /// publisher's MarkResetRequired flag) can land _model = null in that window. + /// Returns rather than throwing so the caller can classify + /// the transient state as retriable without invoking + /// again (the concurrent teardown already is the reset). + /// + public IChannel? TryGetChannel() => _model; + + /// + /// Returns true only when both the connected flag is set AND the underlying channel + /// is still open. A broker drop closes the channel without clearing the flag, so + /// checking the flag alone would permanently suppress reconnect attempts. + /// + public bool IsHealthy() => _connected && (_model?.IsOpen ?? false); + + /// + /// Returns an atomic snapshot of the producer's health-relevant state. + /// Reads _hasAttemptedConnection first; the per-connection invariant is that + /// _isHealthy=true implies _hasAttemptedConnection=1 (set BEFORE the + /// connection-success branch in ), so observing + /// _hasAttemptedConnection=0 here means a snapshot caller cannot also see + /// IsHealthy=true. Re-snapshot if the invariant is violated (i.e. the rare + /// case where a publish raced our two reads). + /// + public ProducerHealthSnapshot GetSnapshot() + { + // Read attempted FIRST. If attempted=0, then by the construction of + // EnsureConnectedAsync (which sets _hasAttemptedConnection=1 before _connected=true) + // we know IsHealthy()==false at the moment we read attempted=0; observing IsHealthy=true + // after that read can only happen if we re-read the snapshot, in which case the new + // attempted read will also be 1. + var attempted = Volatile.Read(ref _hasAttemptedConnection) != 0; + var healthy = IsHealthy(); + + // Re-snapshot to close the rare double-read race: if we observed attempted=false but + // healthy=true, that contradicts the invariant — the publish path must have set both + // between our two reads. Re-read attempted; the new value must be true. + if (healthy && !attempted) + { + attempted = Volatile.Read(ref _hasAttemptedConnection) != 0; + } + + return new ProducerHealthSnapshot(IsHealthy: healthy, HasAttemptedConnection: attempted); + } + + /// + /// Marks the connection for reset on the next call to . + /// Synchronous and idempotent. Used by Producer's publish-timeout and retry paths to + /// defer the slow teardown+recreate to the next prologue, where it runs under + /// _connectionSemaphore rather than _publishLock. + /// + internal void MarkResetRequired() => Interlocked.Exchange(ref _resetRequired, 1); + + /// Test seam: snapshot of the reset flag for unit-test assertions. + internal bool ResetRequiredForTests => Volatile.Read(ref _resetRequired) == 1; + + public async Task EnsureConnectedAsync(CancellationToken cancellationToken) + { + // Mark that a connection attempt has begun regardless of outcome. This allows the health + // check to distinguish "lazy, not yet tried" (pre-publish, still Healthy) from + // "tried and currently disconnected" (Unhealthy). Set before IsHealthy check so even + // a reconnect path (reset-required) correctly flips the flag. + Interlocked.Exchange(ref _hasAttemptedConnection, 1); + + // Lock-free fast path: if no reset is pending and the channel is healthy, skip the + // semaphore entirely. Concurrent publishers all hit this path on the steady-state. + if (Volatile.Read(ref _resetRequired) == 0 && IsHealthy()) + { + return; + } + + // Acquire the semaphore ONCE and hold it across teardown (if reset was required) AND + // create. Without this, a concurrent publisher's IsHealthy() peek could squeak through + // between teardown's release and create's re-acquire and observe the stale-but-still- + // open channel before the new one replaced it. + await _connectionSemaphore.WaitAsync(cancellationToken).ConfigureAwait(false); + try + { + // Atomically consume the reset flag inside the semaphore. The whole reset-and-recreate + // runs under the lock so concurrent peekers see either pre-reset or post-create state, + // never the in-between half-open window. Also tear down when no reset was marked but + // the channel is bare-closed (broker-side Channel.Close, queue deletion, mirror failover): + // without this fall-through the next CreateConnectionAsync would overwrite _connection + // without disposing the prior reference. + var resetMarked = Interlocked.Exchange(ref _resetRequired, 0) == 1; + var needsTeardown = resetMarked || (_connection is not null && !IsHealthy()); + if (needsTeardown) + { + await TearDownChannelAndConnectionAsync().ConfigureAwait(false); + // Bump generation before clearing so a concurrent EnsureExchangeDeclaredAsync + // that sneaks in between the clear and the subsequent CreateConnectionAsync's + // own bump cannot stamp an entry under the old generation and fool a later + // lookup. See CreateConnectionAsync for the full ordering rationale. + Volatile.Write(ref _connectionGeneration, _connectionGeneration + 1); + _declaredExchanges.Clear(); + } + + if (IsHealthy()) + { + return; + } + + // Skip retry on ObjectDisposedException: that signals CloseAsync set _disposed + // mid-create and the just-built connection has already been torn down. Retrying + // would just re-throw on the next iteration's post-assign disposed check. + await Retry.DoAsync( + () => CreateConnectionAsync(cancellationToken), + async ex => + { + _logger.LogError(ex, "Error creating connection"); + await TearDownChannelAndConnectionAsync().ConfigureAwait(false); + }, + TimeSpan.FromSeconds(_retryTimeInSeconds), + _retryCount, + shouldRetry: ex => ex is not ObjectDisposedException, + cancellationToken).ConfigureAwait(false); + + _connected = true; + } + finally + { + _connectionSemaphore.Release(); + } + } + + /// + /// Declares the named exchange on the current channel if it has not already been + /// declared on this connection. Idempotent within a connection's lifetime; the + /// per-connection cache is cleared on every (re)connect. + /// + public async Task EnsureExchangeDeclaredAsync(string exchangeName, string type, CancellationToken cancellationToken) + { + // Snapshot the current generation BEFORE the cache lookup so a concurrent reset + // doesn't make us declare against the new channel and then stamp the cache with + // a stale generation. Volatile.Read pairs with the Volatile.Write in + // CreateConnectionAsync to give us an acquire-fence on the generation. + var generation = Volatile.Read(ref _connectionGeneration); + if (_declaredExchanges.TryGetValue(exchangeName, out var stamped) && stamped == generation) + { + return; + } + + // _model can be nulled by a concurrent TearDownChannelAndConnectionAsync between + // the generation snapshot above and this call. Snapshot the channel reference + // once and check for null so the retriable-publish path classifies this as a + // transient channel state and retries on the next iteration after reconnect. + var channel = TryGetChannel() + ?? throw new ChannelTransientException( + "Producer channel was torn down concurrently between generation snapshot and exchange declare; retrying."); + await channel.ExchangeDeclareAsync(exchangeName, type, true, false, null, false, false, cancellationToken).ConfigureAwait(false); + // Stamp with the generation we observed. If a reset slid in between the snapshot + // and the declare-call, the next caller's lookup will see generation+1 and won't + // short-circuit — at worst a redundant re-declare on the new connection, never a + // declared-on-wrong-channel skip. + _declaredExchanges[exchangeName] = generation; + } + + /// + /// Closes the connection cooperatively, waiting up to + /// for any in-flight (re)connect to complete before forcing teardown. + /// + public async Task CloseAsync(TimeSpan timeoutBudget) + { + // Set _disposed BEFORE waiting for the semaphore, so a concurrent create can detect + // it after assignment and tear down its own work rather than orphaning the connection. + Interlocked.Exchange(ref _disposed, 1); + + // Share a single stopwatch budget across lock wait + broker close. Without this, + // a stalled broker swallowing close frames hangs the broker-side CloseAsync calls + // indefinitely after the semaphore wait — same failure shape Connection.cs's R7 + // fix addressed, propagated here so producer and consumer connection-close paths + // are symmetric. + var stopwatch = System.Diagnostics.Stopwatch.StartNew(); + var connectionLockAcquired = false; + try + { + connectionLockAcquired = await _connectionSemaphore.WaitAsync(timeoutBudget).ConfigureAwait(false); + if (!connectionLockAcquired) + { + _logger.LogWarning( + "ProducerConnection close could not acquire connection lock within {Timeout}; forcing teardown", + timeoutBudget); + } + } + catch (Exception ex) + { + _logger.LogWarning(ex, "ProducerConnection close lock-wait failed; forcing teardown"); + } + finally + { + // Compute remaining budget for the broker close; floor at 100ms so a fully- + // exhausted budget still issues a CloseAsync with some chance of success. + var remaining = timeoutBudget - stopwatch.Elapsed; + if (remaining < TimeSpan.FromMilliseconds(100)) + { + remaining = TimeSpan.FromMilliseconds(100); + } + + // Best-effort teardown ALWAYS runs, whether or not we held the lock. + try { await TearDownChannelAndConnectionAsync(remaining).ConfigureAwait(false); } + catch (Exception ex) { _logger.LogWarning(ex, "ProducerConnection channel/connection close failed"); } + + if (connectionLockAcquired) + { + _connectionSemaphore.Release(); + } + + // _connectionSemaphore is intentionally NOT Disposed: SemaphoreSlim.Dispose only + // releases the lazily-allocated WaitHandle, and we never call AvailableWaitHandle, + // so disposal is a functional no-op. The field is GC'd with this instance. + } + } + + private async Task CreateConnectionAsync(CancellationToken cancellationToken) + { + _connectionFactory = ConnectionFactoryBuilder.Build(_transportConfiguration, _logger); + + // Exchange declarations are per-connection. Bump the generation FIRST, then clear: + // a concurrent EnsureExchangeDeclaredAsync that read the old generation sees an + // entry stamped with that generation and short-circuits — but its declare was made + // against the prior channel, which is the channel its publish will use, so the + // skip is safe. A caller that arrives AFTER the bump reads the new generation + // and any leftover stale entry no longer matches, forcing a fresh declare on the + // new channel. Volatile.Write provides release-fence ordering with the matching + // Volatile.Read in EnsureExchangeDeclaredAsync. + Volatile.Write(ref _connectionGeneration, _connectionGeneration + 1); + _declaredExchanges.Clear(); + + IConnection? connection = null; + IChannel? model = null; + + try + { + if (CreateConnectionForTests != null) + { + connection = await CreateConnectionForTests(_connectionFactory, _hosts, ProducerName, cancellationToken).ConfigureAwait(false); + } + else + { + connection = await _connectionFactory.CreateConnectionAsync(_hosts, ProducerName, cancellationToken).ConfigureAwait(false); + } + + _lifecycle.Attach(connection); + // VirtualHost is set on the ConnectionFactory but is not surfaced on + // AmqpTcpEndpoint. Read it from the transport config — that's the value + // the factory was built with and what the broker will route against. + var (host, port) = ConnectionLifecycleHooks.ResolveEndpoint(connection); + RabbitMqClientLog.ProducerConnectionOpened( + _logger, + host, + port, + string.IsNullOrEmpty(_transportConfiguration.VirtualHost) ? "/" : _transportConfiguration.VirtualHost, + connection.ClientProvidedName ?? string.Empty); + + if (_publisherAcks) + { + // The producer's primary bound on outstanding confirms is _publishLock = new(1, 1): + // every publish runs under that single permit, so the RabbitMQ.Client + // _confirmsTaskCompletionSources dictionary never holds more than one entry at a + // time even though the upstream library leaves it unbounded by default. + // + // The ConcurrencyLimiter installed here is defence-in-depth: RabbitMQ.Client + // releases the rate-limiter lease BEFORE awaiting the broker confirm + // (MaybeReleasePublisherConfirmationLock fires before MaybeEndPublisherConfirmationTrackingAsync), + // so the limiter caps concurrent wire sends, not outstanding-but-unacked confirms. + // It is a no-op against the current single-permit _publishLock layout, but if a + // future change ever lets multiple publishes run concurrently against one channel, + // the upstream tracker would otherwise grow without bound. QueueLimit=int.MaxValue + // makes overflow back-pressure (queue, then publish) rather than throw. + var permitLimit = ResolveMaxOutstandingPublishConfirms(_transportConfiguration); + // Defensive: a previous reconnect's limiter must be disposed before the + // new one is installed. TearDownChannelAndConnectionAsync disposes it on + // every reset, so this is normally null on the create-from-scratch path; + // the swap is here for the case where CreateConnectionAsync is reached + // without an intervening TearDown. + var prior = Interlocked.Exchange(ref _publisherRateLimiter, null); + if (prior is not null) + { + await prior.DisposeAsync().ConfigureAwait(false); + } + var rateLimiter = new ConcurrencyLimiter(new ConcurrencyLimiterOptions + { + PermitLimit = permitLimit, + QueueLimit = int.MaxValue, + QueueProcessingOrder = QueueProcessingOrder.OldestFirst, + }); + _publisherRateLimiter = rateLimiter; + // publisherConfirmationsEnabled is also load-bearing for + // OutboundHeaderBuilder.BuildBasicProperties' aliasing-safety invariant in the + // SendAsync(Type) fan-out: the broker ack gates the next iteration's + // re-stamping of baseHeaders. Disabling acks would let RabbitMQ.Client read + // the alias dict after the next iteration mutates it. See + // OutboundHeaderBuilder.BuildBasicProperties for the binding contract. + var channelOptions = new CreateChannelOptions( + publisherConfirmationsEnabled: true, + publisherConfirmationTrackingEnabled: true, + outstandingPublisherConfirmationsRateLimiter: rateLimiter); + model = await connection.CreateChannelAsync(channelOptions, cancellationToken).ConfigureAwait(false); + } + else + { + model = await connection.CreateChannelAsync(null, cancellationToken).ConfigureAwait(false); + } + + _connection = connection; + _model = model; + + // Race window: CloseAsync may have set _disposed and forced teardown while we were + // creating. If so, tear down the just-built instances rather than orphaning them. + if (Volatile.Read(ref _disposed) != 0) + { + var orphanModel = Interlocked.Exchange(ref _model, null); + var orphanConnection = Interlocked.Exchange(ref _connection, null); + var orphanLimiter = Interlocked.Exchange(ref _publisherRateLimiter, null); + await DisposeModelAsync(orphanModel).ConfigureAwait(false); + await DisposeConnectionInstanceAsync(orphanConnection).ConfigureAwait(false); + if (orphanLimiter is not null) + { + try { await orphanLimiter.DisposeAsync().ConfigureAwait(false); } + catch (ObjectDisposedException) { } + } + _connected = false; + // Null the locals so the outer catch's redundant dispose path is a no-op — + // the helpers are null-guarded and we have already disposed the references. + model = null; + connection = null; + throw new ObjectDisposedException(nameof(ProducerConnection), + "ProducerConnection was disposed while a connection create was in flight; the just-built connection has been torn down."); + } + } + catch + { + await DisposeModelAsync(model).ConfigureAwait(false); + await DisposeConnectionInstanceAsync(connection).ConfigureAwait(false); + // CreateChannelAsync may have thrown after _publisherRateLimiter was assigned; + // dispose to avoid leaking on the failed-create path. Use Exchange so a + // subsequent successful retry can install a fresh limiter without observing + // a stale field. + var limiter = Interlocked.Exchange(ref _publisherRateLimiter, null); + if (limiter is not null) + { + try { await limiter.DisposeAsync().ConfigureAwait(false); } + catch (ObjectDisposedException) { } + } + throw; + } + } + + private async Task TearDownChannelAndConnectionAsync(TimeSpan? closeTimeout = null) + { + var model = Interlocked.Exchange(ref _model, null); + var connection = Interlocked.Exchange(ref _connection, null); + var rateLimiter = Interlocked.Exchange(ref _publisherRateLimiter, null); + + await DisposeModelAsync(model, closeTimeout).ConfigureAwait(false); + await DisposeConnectionInstanceAsync(connection, closeTimeout).ConfigureAwait(false); + // Dispose the rate limiter AFTER the channel is gone: any publish in flight + // has already errored out on the closed channel, so no caller is still + // waiting on a permit when the limiter dispose invalidates outstanding + // leases. Disposal is best-effort — a transient ObjectDisposedException + // from a torn-down concurrent caller is the documented limiter shutdown + // behaviour and must not propagate out of teardown. + if (rateLimiter is not null) + { + try + { + await rateLimiter.DisposeAsync().ConfigureAwait(false); + } + catch (ObjectDisposedException) { } + } + _connected = false; + } + + private async Task DisposeModelAsync(IChannel? model, TimeSpan? closeTimeout = null) + { + if (model != null) + { + try + { + _logger.LogDebug("Disposing Model"); + if (model.IsOpen) + { + if (closeTimeout is { } budget) + { + // Bound the broker close so a stalled broker swallowing close frames + // cannot wedge dispose past the caller's budget. Mirrors Connection.cs's + // R7 fix on the consumer side. + using var closeCts = new CancellationTokenSource(budget); + try { await model.CloseAsync(closeCts.Token).ConfigureAwait(false); } + catch (OperationCanceledException) when (closeCts.IsCancellationRequested) + { + _logger.LogWarning("Model close timed out within {Budget}; proceeding with disposal.", budget); + } + } + else + { + await model.CloseAsync().ConfigureAwait(false); + } + } + + model.Dispose(); + } + catch (ObjectDisposedException) { } + catch (Exception ex) + { + _logger.LogWarning(ex, "Error disposing model"); + } + } + } + + private async Task DisposeConnectionInstanceAsync(IConnection? connection, TimeSpan? closeTimeout = null) + { + if (connection != null) + { + try + { + // Detach BEFORE close so the broker-driven ConnectionShutdownAsync that fires + // inside CloseAsync is not re-emitted as a ConnectionLost log entry. Idempotent: + // a `-=` against an unsubscribed handler is a silent no-op, so the failed-create + // catch path (which calls into here without ever having attached) is safe. + _lifecycle.Detach(connection); + + _logger.LogDebug("Disposing connection"); + if (connection.IsOpen) + { + if (closeTimeout is { } budget) + { + using var closeCts = new CancellationTokenSource(budget); + try { await connection.CloseAsync(closeCts.Token).ConfigureAwait(false); } + catch (OperationCanceledException) when (closeCts.IsCancellationRequested) + { + _logger.LogWarning("Connection close timed out within {Budget}; proceeding with disposal.", budget); + } + } + else + { + await connection.CloseAsync().ConfigureAwait(false); + } + } + + connection.Dispose(); + } + catch (ObjectDisposedException) { } + catch (Exception ex) + { + _logger.LogWarning(ex, "Error disposing connection"); + } + } + } + +} diff --git a/src/ServiceConnect.Client.RabbitMQ/Properties/AssemblyInfo.cs b/src/ServiceConnect.Client.RabbitMQ/Properties/AssemblyInfo.cs deleted file mode 100644 index 06284afb6..000000000 --- a/src/ServiceConnect.Client.RabbitMQ/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,19 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("ServiceConnect.Client.RabbitMQ")] -[assembly: AssemblyTrademark("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("a9f6c561-0d41-4bbf-82e0-64a0bac4a74f")] diff --git a/src/ServiceConnect.Client.RabbitMQ/RabbitMqClientLog.cs b/src/ServiceConnect.Client.RabbitMQ/RabbitMqClientLog.cs new file mode 100644 index 000000000..9c68e19a9 --- /dev/null +++ b/src/ServiceConnect.Client.RabbitMQ/RabbitMqClientLog.cs @@ -0,0 +1,62 @@ +using Microsoft.Extensions.Logging; + +namespace ServiceConnect.Client.RabbitMQ; + +/// +/// Source-generated logger entries emitted by the RabbitMQ client package. +/// +internal static partial class RabbitMqClientLog +{ + public const int ConnectionOpenedEventId = 2; + public const int ProducerConnectionOpenedEventId = 3; + public const int ConnectionRecoveredEventId = 4; + public const int ConnectionLostEventId = 5; + public const int AckFailedEventId = 6; + public const int NackFailedEventId = 7; + + [LoggerMessage( + EventId = ConnectionOpenedEventId, + EventName = "ConnectionOpened", + Level = LogLevel.Information, + Message = "ServiceConnect connection opened to {Host}:{Port} (vhost='{VirtualHost}', name='{ConnectionName}').")] + public static partial void ConnectionOpened(ILogger logger, string host, int port, string virtualHost, string connectionName); + + [LoggerMessage( + EventId = ProducerConnectionOpenedEventId, + EventName = "ProducerConnectionOpened", + Level = LogLevel.Information, + Message = "ServiceConnect producer connection opened to {Host}:{Port} (vhost='{VirtualHost}', name='{ConnectionName}').")] + public static partial void ProducerConnectionOpened(ILogger logger, string host, int port, string virtualHost, string connectionName); + + [LoggerMessage( + EventId = ConnectionRecoveredEventId, + EventName = "ConnectionRecovered", + Level = LogLevel.Information, + Message = "ServiceConnect connection recovered to {Host}:{Port} (name='{ConnectionName}').")] + public static partial void ConnectionRecovered(ILogger logger, string host, int port, string connectionName); + + // Connection-lost stays at Information level: broker-initiated shutdowns happen for normal + // reasons (rolling restarts, cluster maintenance) and don't warrant a Warning page. The + // Initiator and Reason fields let log readers correlate with the broker's own logs when + // an investigation is needed. + [LoggerMessage( + EventId = ConnectionLostEventId, + EventName = "ConnectionLost", + Level = LogLevel.Information, + Message = "ServiceConnect connection lost to {Host}:{Port} (name='{ConnectionName}', initiator={Initiator}, reason={Reason}).")] + public static partial void ConnectionLost(ILogger logger, string host, int port, string connectionName, string initiator, string reason); + + [LoggerMessage( + EventId = AckFailedEventId, + EventName = "AckFailed", + Level = LogLevel.Warning, + Message = "Failed to ack message {MessageId} (DeliveryTag {DeliveryTag}) on queue {Queue}.")] + public static partial void AckFailed(ILogger logger, Exception exception, string messageId, ulong deliveryTag, string queue); + + [LoggerMessage( + EventId = NackFailedEventId, + EventName = "NackFailed", + Level = LogLevel.Warning, + Message = "Failed to nack message {MessageId} (DeliveryTag {DeliveryTag}) on queue {Queue}.")] + public static partial void NackFailed(ILogger logger, Exception exception, string messageId, ulong deliveryTag, string queue); +} diff --git a/src/ServiceConnect.Client.RabbitMQ/Retry.cs b/src/ServiceConnect.Client.RabbitMQ/Retry.cs deleted file mode 100644 index 6e1394708..000000000 --- a/src/ServiceConnect.Client.RabbitMQ/Retry.cs +++ /dev/null @@ -1,76 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; -using System.Threading; - -namespace ServiceConnect.Client.RabbitMQ -{ - public static class Retry - { - public static void Do(Action action, Action exceptionAction, TimeSpan retryInterval, int retryCount) - { - List exceptions = new(); - - for (int retry = 0; retry < retryCount; retry++) - { - try - { - action(); - return; - } - catch (Exception ex) - { - exceptions.Add(ex); - try - { - exceptionAction(ex); - } - catch { } - Thread.Sleep(retryInterval); - } - } - - throw new AggregateException(exceptions); - } - - public static T Do(Func action, Action exceptionAction, TimeSpan retryInterval, int retryCount) - { - List exceptions = new(); - - for (int retry = 0; retry < retryCount; retry++) - { - try - { - return action(); - } - catch (Exception ex) - { - exceptions.Add(ex); - try - { - exceptionAction(ex); - } - catch { } - Thread.Sleep(retryInterval); - } - } - - throw new AggregateException(exceptions); - } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Client.RabbitMQ/ServiceConnect.Client.RabbitMQ.csproj b/src/ServiceConnect.Client.RabbitMQ/ServiceConnect.Client.RabbitMQ.csproj index 22ee53bd3..ae3bd0d2e 100644 --- a/src/ServiceConnect.Client.RabbitMQ/ServiceConnect.Client.RabbitMQ.csproj +++ b/src/ServiceConnect.Client.RabbitMQ/ServiceConnect.Client.RabbitMQ.csproj @@ -1,27 +1,33 @@ - - - net6.0 - ServiceConnect.Client.RabbitMQ - ServiceConnect.Client.RabbitMQ - false - false - false - 5.0.0 - - - - - - - - - - - - - 4.3.0 - - - + + enable + enable + ServiceConnect.Client.RabbitMQ + ServiceConnect.Client.RabbitMQ + ServiceConnect.Client.RabbitMQ + RabbitMQ transport for ServiceConnect. Implements IProducer and IConsumer over RabbitMQ.Client 7.x with publisher confirms, mandatory routing, broker-cancel handling and per-message TTL retry queues. + ServiceConnect;RabbitMQ;Transport;Client;MessageBus;Messaging;Message;Bus;Service + + + + + + + + <_Parameter1>ServiceConnect.UnitTests + + + <_Parameter1>ServiceConnect.EndToEndTests + + + + <_Parameter1>DynamicProxyGenAssembly2 + + + + + + diff --git a/src/ServiceConnect.Client.RabbitMQ/ServiceConnect.Client.RabbitMQ.nuspec b/src/ServiceConnect.Client.RabbitMQ/ServiceConnect.Client.RabbitMQ.nuspec deleted file mode 100644 index 09b0fe13d..000000000 --- a/src/ServiceConnect.Client.RabbitMQ/ServiceConnect.Client.RabbitMQ.nuspec +++ /dev/null @@ -1,26 +0,0 @@ - - - - ServiceConnect.Client.RabbitMQ - 6.0.5 - ServiceConnect.Client.RabbitMQ - Jakub Pachansky,Tim Watson - Jakub Pachansky,Tim Watson - false - RabbitMQ Consumer for ServiceConnect. - en-GB - https://github.com/R-Suite/ServiceConnect - Copyright 2020 ServiceConnect. All rights reserved - ServiceConnect,RMessageBus,R,MessageBus,MessageBus Client,Client.RabbitMQ,R RabbitMQ,R RabbitMQ Client,RabbitMQ, MessageBus,Messaging,Message,Bus,Service - - - - - - - - - - - - \ No newline at end of file diff --git a/src/ServiceConnect.Client.RabbitMQ/Topology/RabbitMqQueueNaming.cs b/src/ServiceConnect.Client.RabbitMQ/Topology/RabbitMqQueueNaming.cs new file mode 100644 index 000000000..5991179a0 --- /dev/null +++ b/src/ServiceConnect.Client.RabbitMQ/Topology/RabbitMqQueueNaming.cs @@ -0,0 +1,14 @@ +namespace ServiceConnect.Client.RabbitMQ; + +/// +/// Suffix conventions and AMQP argument keys shared across the consumer and producer sides. +/// +internal static class RabbitMqQueueNaming +{ + public const string RetryQueueSuffix = ".Retries"; + public const string RetryDeadLetterExchangeSuffix = ".Retries.DeadLetter"; + + // AMQP-defined queue argument keys + public const string XDeadLetterExchangeArgument = "x-dead-letter-exchange"; + public const string XMessageTtlArgument = "x-message-ttl"; +} diff --git a/src/ServiceConnect.Client.RabbitMQ/Topology/RabbitMqTopologyProvisioner.cs b/src/ServiceConnect.Client.RabbitMQ/Topology/RabbitMqTopologyProvisioner.cs new file mode 100644 index 000000000..c1b445dea --- /dev/null +++ b/src/ServiceConnect.Client.RabbitMQ/Topology/RabbitMqTopologyProvisioner.cs @@ -0,0 +1,225 @@ +using Microsoft.Extensions.Logging; +using RabbitMQ.Client; +using RabbitMQ.Client.Exceptions; + +namespace ServiceConnect.Client.RabbitMQ; + +/// +/// Encapsulates RabbitMQ topology provisioning (exchanges, queues, bindings). +/// Always re-throws AMQP (PRECONDITION_FAILED, +/// NOT_FOUND, etc.). Such errors close the underlying channel; swallowing them would +/// leave the caller publishing/consuming on a dead channel and surface much later as +/// an opaque AlreadyClosedException. The isInitialSetup parameter on each +/// method is retained for source-compat with v6 callers but is no longer consulted. +/// +/// +/// Initializes a new topology provisioner. +/// +/// The logger used for topology provisioning warnings. +internal sealed class RabbitMqTopologyProvisioner(ILogger logger) +{ + private readonly ILogger _logger = logger ?? throw new ArgumentNullException(nameof(logger)); + + /// + /// Declares an exchange with standard durable/non-auto-delete settings. + /// Deduplicated exchange declaration. + /// Always re-throws AMQP errors — see class summary for the channel-state rationale. + /// + public async Task ConfigureDeclareExchangeAsync( + IChannel channel, + string exchangeName, + string exchangeType, + bool isInitialSetup = false, + CancellationToken cancellationToken = default) + { + // Reserved for future use — see ConfigureDeclareUtilityQueueAsync for the semantic + // ("swallow bind-time failure during initial setup, rethrow on later provisions"). + // This method always rethrows because exchange-declare failures during repair + // mean the channel is dead and the caller must reconnect rather than continue. + _ = isInitialSetup; + try + { + await channel.ExchangeDeclareAsync( + exchangeName, exchangeType, + durable: true, + autoDelete: false, + arguments: null, + cancellationToken: cancellationToken).ConfigureAwait(false); + } + catch (OperationInterruptedException ex) + { + // Pass `ex` as first arg so structured loggers capture the full exception + // (ReplyCode, ReplyText, stack) — `ex.Message` only renders the prefix and + // loses the AMQP reply-code that drives incident triage. + _logger.LogWarning(ex, "Error declaring exchange {ExchangeName}", exchangeName); + throw; + } + } + + /// + /// Declares the main consumer queue. + /// Always re-throws AMQP errors — see class summary for the channel-state rationale. + /// + public async Task ConfigureDeclareQueueAsync( + IChannel channel, + string queueName, + bool durable, + bool exclusive, + bool autoDelete, + IDictionary arguments, + bool isInitialSetup = false, + CancellationToken cancellationToken = default) + { + // Reserved for future use — queue-declare failures during repair mean the channel + // is dead and the caller must reconnect rather than continue, so this method + // always rethrows regardless of phase. + _ = isInitialSetup; + try + { + await channel.QueueDeclareAsync( + queueName, + durable, + exclusive, + autoDelete, + arguments, + cancellationToken: cancellationToken).ConfigureAwait(false); + } + catch (OperationInterruptedException ex) + { + _logger.LogWarning(ex, "Error declaring queue {QueueName}", queueName); + throw; + } + } + + /// + /// Declares a utility queue (error/audit), its exchange, and binding. + /// Deduplicated utility queue setup. + /// Always re-throws AMQP errors — see class summary for the channel-state rationale. + /// + public async Task ConfigureDeclareUtilityQueueAsync( + IChannel channel, + string name, + IDictionary arguments, + bool isInitialSetup = false, + CancellationToken cancellationToken = default) + { + try + { + await channel.ExchangeDeclareAsync( + name, + ExchangeType.Direct, + durable: true, + autoDelete: false, + arguments: null, + cancellationToken: cancellationToken).ConfigureAwait(false); + } + catch (OperationInterruptedException ex) + { + _logger.LogWarning(ex, "Error declaring exchange {ExchangeName}", name); + throw; + } + + try + { + await channel.QueueDeclareAsync(name, durable: true, exclusive: false, autoDelete: false, arguments, cancellationToken: cancellationToken).ConfigureAwait(false); + } + catch (OperationInterruptedException ex) + { + _logger.LogWarning(ex, "Error declaring queue {QueueName}", name); + throw; + } + + if (!string.IsNullOrEmpty(name)) + { + try + { + await channel.QueueBindAsync(name, name, string.Empty, null, cancellationToken: cancellationToken).ConfigureAwait(false); + } + catch (OperationInterruptedException ex) + { + _logger.LogWarning(ex, "Error binding queue {QueueName}", name); + if (isInitialSetup) + { + throw; + } + } + } + } + + /// + /// Declares the retry topology: dead-letter exchange, queue binding, and retry queue. + /// Always re-throws AMQP errors — see class summary for the channel-state rationale. + /// + public async Task ConfigureRetryTopologyAsync( + IChannel channel, + string queueName, + bool durable, + bool autoDelete, + int retryDelayMs, + IDictionary retryQueueArguments, + bool isInitialSetup = false, + CancellationToken cancellationToken = default) + { + // autoDelete: caller-supplied for symmetry with the main-queue declare site, but + // the retry DLX itself is invariant autoDelete:false (see the comment at the + // ExchangeDeclareAsync call below). isInitialSetup is reserved for future use. + _ = autoDelete; + _ = isInitialSetup; + string retryQueueName = queueName + RabbitMqQueueNaming.RetryQueueSuffix; + string retryDeadLetterExchangeName = queueName + RabbitMqQueueNaming.RetryDeadLetterExchangeSuffix; + + try + { + // Retry DLX is always autoDelete:false: it must outlive any individual queue lifecycle so + // retried messages always have somewhere to land. The caller-supplied `autoDelete` parameter + // continues to govern the main queue (declared elsewhere) but the retry DLX is invariant. + await channel.ExchangeDeclareAsync(retryDeadLetterExchangeName, ExchangeType.Direct, durable, autoDelete: false, null, cancellationToken: cancellationToken).ConfigureAwait(false); + } + catch (OperationInterruptedException ex) + { + _logger.LogWarning(ex, "Error declaring dead letter exchange {ExchangeName}", retryDeadLetterExchangeName); + throw; + } + + try + { + await channel.QueueBindAsync(queueName, retryDeadLetterExchangeName, retryQueueName, null, cancellationToken: cancellationToken).ConfigureAwait(false); + } + catch (OperationInterruptedException ex) + { + _logger.LogWarning(ex, "Error binding dead letter queue {QueueName} to exchange {ExchangeName}", queueName, retryDeadLetterExchangeName); + throw; + } + + Dictionary arguments = new(retryQueueArguments, StringComparer.Ordinal); + + // Framework values for these two keys are non-negotiable: they wire the retry queue to the + // retry DLX with the configured TTL. Caller-supplied values are overridden silently except + // for a Debug log so config drift surfaces without polluting Information. + LogIfOverriding(RabbitMqQueueNaming.XDeadLetterExchangeArgument, arguments, retryDeadLetterExchangeName); + LogIfOverriding(RabbitMqQueueNaming.XMessageTtlArgument, arguments, retryDelayMs); + + arguments[RabbitMqQueueNaming.XDeadLetterExchangeArgument] = retryDeadLetterExchangeName; + arguments[RabbitMqQueueNaming.XMessageTtlArgument] = retryDelayMs; + + try + { + await channel.QueueDeclareAsync(retryQueueName, durable, exclusive: false, autoDelete: false, arguments, cancellationToken: cancellationToken).ConfigureAwait(false); + } + catch (OperationInterruptedException ex) + { + _logger.LogWarning(ex, "Error declaring retry queue {QueueName}", retryQueueName); + throw; + } + } + + private void LogIfOverriding(string key, IReadOnlyDictionary existing, T frameworkValue) + { + if (existing.TryGetValue(key, out var existingValue) && !Equals(existingValue, frameworkValue)) + { + _logger.LogDebug( + "Overriding caller-supplied retry-queue argument {Key} (was '{ExistingValue}') with framework value '{FrameworkValue}'", + key, existingValue, frameworkValue); + } + } +} diff --git a/src/ServiceConnect.Container.Default/Container.cs b/src/ServiceConnect.Container.Default/Container.cs deleted file mode 100644 index 8db81b691..000000000 --- a/src/ServiceConnect.Container.Default/Container.cs +++ /dev/null @@ -1,194 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using System.Reflection; -using ServiceConnect.Interfaces.Container; - -namespace ServiceConnect.Container.Default -{ - /// - /// Custom implementation of IoC Container - /// - public class Container : IServicesRegistrar - { - #region Fields - - private readonly IDictionary _services = new Dictionary(); - - #endregion - - #region Public Properties - - public IDictionary AllInstances - { - get { return _services; } - } - - #endregion - - #region IServiceContainer Members - - /// - public TService Resolve() - { - return (TService)Resolve(typeof(TService)); - } - - /// - public object Resolve(Type tService) - { - var result = GetInstance(tService); - - return result; - } - - /// - public object Resolve(Type tService, IDictionary arguments) - { - if (_services.Values.Any(v => v == tService)) - { - ConstructorInfo ctor = _services.First(s => s.Value == tService).Key.ServiceType.GetTypeInfo().GetConstructors().First(); - - IList dependecies = new List(); - ParameterInfo[] ctorParams = ctor.GetParameters(); - foreach (ParameterInfo parameterInfo in ctorParams) - { - if (arguments.ContainsKey(parameterInfo.Name)) - dependecies.Add(arguments[parameterInfo.Name]); - } - - return ctor.Invoke(dependecies.ToArray()); - } - - throw new Exception("Type not registered" + tService); - } - - private object GetInstance(Type tService) - { - if (_services.Values.Any(v => v == tService)) - { - return GetInstance(_services.First(s => s.Value == tService).Key); - } - - if (_services.Keys.Any(k=>k.ServiceType == tService)) - { - var serviceDesc = _services.Keys.First(v => v.ServiceType == tService); - var instance = serviceDesc.Instance; - return instance ?? CreateInstance(serviceDesc.ServiceType); - } - - try - { - var genericDefinition = tService.GetGenericTypeDefinition(); - if (genericDefinition != null && _services.Values.Any(v => v == genericDefinition)) - { - return GetGenericInstance(tService, _services.First(s => s.Value == genericDefinition).Key.ServiceType); - } - } - catch - { - return Activator.CreateInstance(tService); - } - - return Activator.CreateInstance(tService); - } - - private object GetInstance(ServiceDescriptor serviceDescriptor) - { - return serviceDescriptor.Instance ?? ( - serviceDescriptor.Instance = CreateInstance(serviceDescriptor.ServiceType)); - } - - private object GetGenericInstance(Type tService, Type genericDefinition) - { - var genericArguments = tService.GetTypeInfo().GetGenericArguments(); - var actualType = genericDefinition.MakeGenericType(genericArguments); - var result = CreateInstance(actualType); - - var serDes = new ServiceDescriptor - { - ServiceType = actualType, - Instance = result - }; - - _services.Add(serDes, tService); - - return result; - } - - private object CreateInstance(Type serviceType) - { - var ctor = serviceType.GetTypeInfo().GetConstructors().First(); - var dependecies = ctor.GetParameters().Select(p => Resolve(p.ParameterType)).ToArray(); - - return ctor.Invoke(dependecies); - } - - #endregion - - #region IConfigurableServiceRepository Members - - public ITypeRegistrar RegisterForAll(params Type[] implementations) - { - return RegisterForAll((IEnumerable)implementations); - } - - public ITypeRegistrar RegisterForAll(IEnumerable implementations) - { - foreach (var impl in implementations) - { - var types = impl.GetTypeInfo().GetInterfaces().ToList(); - if (impl.GetTypeInfo().BaseType != null && impl.GetTypeInfo().BaseType != typeof(object)) - { - types.Add(impl.GetTypeInfo().BaseType); - } - RegisterFor(impl, types.ToArray()); - } - - return this; - } - - public ITypeRegistrar RegisterFor(Type implementation, params Type[] interfaces) - { - return RegisterFor(implementation, (IEnumerable)interfaces); - } - - public ITypeRegistrar RegisterFor(Type implementation, IEnumerable interfaces) - { - foreach (var @interface in interfaces) - { - var descriptor = new ServiceDescriptor - { - ServiceType = implementation - }; - _services[descriptor] = GetRegistrableType(@interface); - } - - return this; - } - - public ITypeRegistrar RegisterFor(object instance, params Type[] interfaces) - { - foreach (var @interface in interfaces) - { - var descriptor = new ServiceDescriptor - { - ServiceType = instance.GetType(), - Instance = instance - }; - _services[descriptor] = GetRegistrableType(@interface); - } - - return this; - } - - private static Type GetRegistrableType(Type type) - { - return type.GetTypeInfo().IsGenericType && type.GetTypeInfo().ContainsGenericParameters - ? type.GetGenericTypeDefinition() - : type; - } - - #endregion - } -} diff --git a/src/ServiceConnect.Container.Default/DefaultBusContainer.cs b/src/ServiceConnect.Container.Default/DefaultBusContainer.cs deleted file mode 100644 index 9c381905c..000000000 --- a/src/ServiceConnect.Container.Default/DefaultBusContainer.cs +++ /dev/null @@ -1,224 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; -using System.Linq; -using System.Reflection; -using ServiceConnect.Core; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Container.Default -{ - /// - /// ServiceConnect abstraction of the custom IoC Container. - /// Used as default to remove any hard dependencies on third-party containers. - /// - public class DefaultBusContainer : IBusContainer - { - private Container _container = new Container(); - - /// - /// Get all handler references for the current container - /// - /// - public IEnumerable GetHandlerTypes() - { - IEnumerable> instances = _container.AllInstances.Where( - i => - i.Value.Name == typeof (IMessageHandler<>).Name || - i.Value.Name == typeof (IStartProcessManager<>).Name || - i.Value.Name == typeof (IAsyncMessageHandler<>).Name || - i.Value.Name == typeof (IStartAsyncProcessManager<>).Name || - i.Value.Name == typeof (Aggregator<>).Name); - - var retval = new List(); - foreach (var instance in instances) - { - IEnumerable attrs = instance.Key.ServiceType.GetTypeInfo().GetCustomAttributes(false); - var routingKeys = attrs.OfType().Select(rk => rk.GetValue()).ToList(); - - retval.Add(new HandlerReference - { - MessageType = instance.Value.GetGenericArguments()[0], - HandlerType = instance.Key.ServiceType, - RoutingKeys = routingKeys - }); - } - - return retval; - } - - /// - /// Get handler references for a handler type (e.g. IMessageHandler`1) - /// - /// - /// - public IEnumerable GetHandlerTypes(params Type[] messageHandlers) - { - IEnumerable> instances = _container.AllInstances.Where(i => messageHandlers.Contains(i.Value)); - - var retval = new List(); - - foreach (var instance in instances) - { - IEnumerable attrs = instance.Key.ServiceType.GetTypeInfo().GetCustomAttributes(false); - var routingKeys = attrs.OfType().Select(rk => rk.GetValue()).ToList(); - - retval.Add(new HandlerReference - { - MessageType = instance.Value.GetGenericArguments()[0], - HandlerType = instance.Key.ServiceType, - RoutingKeys = routingKeys - }); - } - - return retval; - } - - /// - /// Get instance for a handler type with parameterless ctor - /// - /// - /// handler instance - public object GetInstance(Type handlerType) - { - return _container.Resolve(handlerType); - } - - /// - /// Get typed instance for a handler type with parameterless ctor - /// - /// - /// handler instance - public T GetInstance() - { - return _container.Resolve(); - } - - /// - /// Get instance for a handler type with ctor parameters - /// - /// - /// - /// handler instance - public T GetInstance(IDictionary arguments) - { - return (T) _container.Resolve(typeof(T), arguments); - } - - /// - /// Scan all assemblies loaded into the current appdomain for message handlers - /// - public void ScanForHandlers() - { -#if NETSTANDARD1_6 - var assemblies = Microsoft.Extensions.DependencyModel.DependencyContext.Default.RuntimeLibraries; - foreach (var assembly in assemblies) - { - try - { - var asm = Assembly.Load(new AssemblyName(assembly.Name)); - var pluginTypes = asm != null ? asm.GetTypes().Where(IsHandler).ToList() : null; - - if (null != pluginTypes && pluginTypes.Count > 0) - { - _container.RegisterForAll(pluginTypes); - } - } - catch (Exception) - { } - } -#else - foreach (Assembly asm in AppDomain.CurrentDomain.GetAssemblies()) - { - var pluginTypes = asm != null ? asm.GetTypes().Where(IsHandler).ToList() : null; - - if (null != pluginTypes && pluginTypes.Count > 0) - { - _container.RegisterForAll(pluginTypes); - } - } -#endif - } - - /// - /// Register all the internal message processors with a new/empty container - /// - public void Initialize() - { - _container.RegisterForAll(typeof(MessageHandlerProcessor)); - _container.RegisterForAll(typeof(AggregatorProcessor)); - _container.RegisterForAll(typeof(ProcessManagerProcessor)); - _container.RegisterForAll(typeof(StreamProcessor)); - _container.RegisterForAll(typeof(ProcessManagerPropertyMapper)); - } - - /// - /// Register all the internal message processors with a provided container - /// - /// - public void Initialize(object container) - { - _container = (Default.Container)container; - Initialize(); - } - - /// - /// Register instance of a handler with the current container - /// - /// generic handler type - /// type of the handler instance - /// handler instance - public void AddHandler(Type handlerType, T handler) - { - _container.RegisterFor(handler, handlerType); - } - - /// - /// Register instance of the to the current container - /// - /// - public void AddBus(IBus bus) - { - _container.RegisterFor(bus, typeof(IBus)); - } - - /// - /// Get instance of the current container - /// - /// - public object GetContainer() - { - return _container; - } - - private static bool IsHandler(Type t) - { - if (t == null) - return false; - - var isHandler = t.GetInterfaces().Any(i => i.Name == typeof(IMessageHandler<>).Name) || - t.GetInterfaces().Any(i => i.Name == typeof(IStartProcessManager<>).Name) || - t.GetInterfaces().Any(i => i.Name == typeof(IAsyncMessageHandler<>).Name) || - t.GetInterfaces().Any(i => i.Name == typeof(IStartAsyncProcessManager<>).Name) || - t.GetInterfaces().Any(i => i.Name == typeof(IStreamHandler<>).Name) || - (t.GetTypeInfo().BaseType != null && t.GetTypeInfo().BaseType.Name == typeof(Aggregator<>).Name); - - return isHandler; - } - } -} diff --git a/src/ServiceConnect.Container.Default/DefaultBusContainerExtensions.cs b/src/ServiceConnect.Container.Default/DefaultBusContainerExtensions.cs deleted file mode 100644 index 41811cbdc..000000000 --- a/src/ServiceConnect.Container.Default/DefaultBusContainerExtensions.cs +++ /dev/null @@ -1,34 +0,0 @@ -using System; -using ServiceConnect.Interfaces; -using ServiceConnect.Interfaces.Container; - -namespace ServiceConnect.Container.Default -{ - public static class DefaultBusContainerExtensions - { - /// - /// Initialize the bus with existing instance of ServicesRegistrar (custom ServiceConnect) Container. - /// - /// - /// - public static void SetContainer(this IConfiguration configuration, IServicesRegistrar container) - { - configuration.SetContainerType(); - var busContainer = configuration.GetContainer(); - busContainer.Initialize(container); - } - - /// - /// Configure existing instance of ServicesRegistrar (custom ServiceConnect) Container. - /// If existing instance does not exist, new one will be created. - /// - /// - /// - public static void ConfigureExistingContainer(this IConfiguration configuration, Action containerAction) - { - configuration.SetContainerType(); - var busContainer = configuration.GetContainer(); - containerAction((IServicesRegistrar)busContainer.GetContainer()); - } - } -} diff --git a/src/ServiceConnect.Container.Default/Properties/AssemblyInfo.cs b/src/ServiceConnect.Container.Default/Properties/AssemblyInfo.cs deleted file mode 100644 index d6a3e8889..000000000 --- a/src/ServiceConnect.Container.Default/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,19 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("ServiceConnect.Container.Default")] -[assembly: AssemblyTrademark("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("94129b84-1471-4956-9db5-461b1d93de79")] diff --git a/src/ServiceConnect.Container.Default/ServiceConnect.Container.Default.csproj b/src/ServiceConnect.Container.Default/ServiceConnect.Container.Default.csproj deleted file mode 100644 index ccc975f58..000000000 --- a/src/ServiceConnect.Container.Default/ServiceConnect.Container.Default.csproj +++ /dev/null @@ -1,22 +0,0 @@ - - - - net6.0 - ServiceConnect.Container.Default - ServiceConnect.Container.Default - false - false - false - 5.0.0 - - - - - - - - - - - - diff --git a/src/ServiceConnect.Container.Default/ServiceDescriptor.cs b/src/ServiceConnect.Container.Default/ServiceDescriptor.cs deleted file mode 100644 index e0cad09fd..000000000 --- a/src/ServiceConnect.Container.Default/ServiceDescriptor.cs +++ /dev/null @@ -1,10 +0,0 @@ -using System; - -namespace ServiceConnect.Container.Default -{ - public class ServiceDescriptor - { - public Type ServiceType { get; set; } - public object Instance { get; set; } - } -} diff --git a/src/ServiceConnect.Container.Ninject/CustomBindingResolver.cs b/src/ServiceConnect.Container.Ninject/CustomBindingResolver.cs deleted file mode 100644 index 50a44895d..000000000 --- a/src/ServiceConnect.Container.Ninject/CustomBindingResolver.cs +++ /dev/null @@ -1,29 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using Ninject.Components; -using Ninject.Infrastructure; -using Ninject.Planning.Bindings; -using Ninject.Planning.Bindings.Resolvers; - -namespace ServiceConnect.Container.Ninject -{ - public class CustomBindingResolver : NinjectComponent, IBindingResolver - { - /// - /// Returns any bindings from the specified collection that match the specified GenericTypeDefinition. - /// - public IEnumerable Resolve(Multimap bindings, Type service) - { - if (service.IsGenericTypeDefinition) - { - var genericType = service.GetGenericTypeDefinition(); - return bindings.Where(kvp => kvp.Key.IsGenericType - && kvp.Key.GetGenericTypeDefinition() == genericType) - .SelectMany(kvp => kvp.Value); - } - - return Enumerable.Empty(); - } - } -} diff --git a/src/ServiceConnect.Container.Ninject/NinjectContainer.cs b/src/ServiceConnect.Container.Ninject/NinjectContainer.cs deleted file mode 100644 index dc1fc9f6a..000000000 --- a/src/ServiceConnect.Container.Ninject/NinjectContainer.cs +++ /dev/null @@ -1,178 +0,0 @@ -using System; -using System.Collections.Generic; -using System.IO; -using System.Linq; -using System.Reflection; -using Ninject.Extensions.Conventions; -using Ninject; -using Ninject.Parameters; -using Ninject.Planning.Bindings.Resolvers; -using ServiceConnect.Core; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Container.Ninject -{ - /// - /// ServiceConnect abstraction of Ninject container - /// - public class NinjectContainer : IBusContainer - { - StandardKernel _kernel = new StandardKernel(); - private bool _initialized; - - public void Initialize() - { - if (!_initialized) - { - _kernel.Components.Add(); - - _kernel.Bind().To(); - _kernel.Bind().To(); - _kernel.Bind().To(); - _kernel.Bind().To(); - _kernel.Bind().To(); - - _initialized = true; - } - } - - public void Initialize(object container) - { - _kernel = (StandardKernel)container; - _initialized = false; - Initialize(); - } - - public IEnumerable GetHandlerTypes() - { - var retval = new List(); - - var handlerTypes = new List(); - handlerTypes.AddRange(_kernel.GetAll(typeof(IMessageHandler<>))); - handlerTypes.AddRange(_kernel.GetAll(typeof(IStartProcessManager<>))); - handlerTypes.AddRange(_kernel.GetAll(typeof(Aggregator<>))); - - foreach (var handlerType in handlerTypes) - { - IEnumerable attrs = handlerType.GetType().GetCustomAttributes(false); - var routingKeys = attrs.OfType().Select(rk => rk.GetValue()).ToList(); - - Type messageType = null; - foreach (Type intType in handlerType.GetType().GetInterfaces()) - { - // In case handlers implement other interfaces - if (intType.IsGenericType && - (intType.GetGenericTypeDefinition() == typeof(IMessageHandler<>) || - intType.GetGenericTypeDefinition() == typeof(IStartProcessManager<>) || - intType.GetGenericTypeDefinition() == typeof(Aggregator<>))) - { - messageType = intType.GetGenericArguments()[0]; - break; - } - } - - retval.Add(new HandlerReference - { - MessageType = messageType, - HandlerType = handlerType.GetType(), - RoutingKeys = routingKeys - }); - } - - return retval; - } - - public IEnumerable GetHandlerTypes(Type messageHandler) - { - var retval = new List(); - - var handlerTypes = _kernel.GetAll(messageHandler); - - foreach (var handlerType in handlerTypes) - { - IEnumerable attrs = handlerType.GetType().GetCustomAttributes(false); - var routingKeys = attrs.OfType().Select(rk => rk.GetValue()).ToList(); - - Type messageType = null; - foreach (Type intType in handlerType.GetType().GetInterfaces()) - { - // In case handlers implement other interfaces - if (intType.IsGenericType && - (intType.GetGenericTypeDefinition() == typeof(IMessageHandler<>) || - intType.GetGenericTypeDefinition() == typeof(IStartProcessManager<>) || - intType.GetGenericTypeDefinition() == typeof(Aggregator<>))) - { - messageType = intType.GetGenericArguments()[0]; - break; - } - } - - retval.Add(new HandlerReference - { - MessageType = messageType, - HandlerType = handlerType.GetType(), - RoutingKeys = routingKeys - }); - } - - return retval; - } - - public object GetInstance(Type handlerType) - { - return _kernel.Get(handlerType); - } - - public T GetInstance(IDictionary arguments) - { - IList ctorArgs = - arguments.Select(argument => new ConstructorArgument(argument.Key, argument.Value)) - .Cast() - .ToList(); - - return _kernel.Get(ctorArgs.ToArray()); - } - - public T GetInstance() - { - return _kernel.Get(); - } - - public void ScanForHandlers() - { - string codeBase = Path.GetDirectoryName(new Uri(Assembly.GetExecutingAssembly().CodeBase).LocalPath); - - _kernel.Bind( - x => - x.FromAssembliesInPath(codeBase) - .SelectAllClasses() - .InheritedFromAny(new[] - { - typeof (IMessageHandler<>), - typeof (IStartProcessManager<>), - typeof (IStreamHandler<>) - }).BindAllInterfaces()); - - _kernel.Bind( - x => - x.FromAssembliesInPath(codeBase) - .SelectAllClasses().InheritedFrom(typeof (Aggregator<>)) - .BindAllBaseClasses()); - } - - public void AddHandler(Type handlerType, T handler) - { - _kernel.Bind(handlerType).ToConstant(handler).InSingletonScope(); - } - - public void AddBus(IBus bus) - { - _kernel.Bind().ToConstant(bus).InSingletonScope(); - } - - public object GetContainer() - { - return _kernel; - } - } -} diff --git a/src/ServiceConnect.Container.Ninject/NinjectExtensions.cs b/src/ServiceConnect.Container.Ninject/NinjectExtensions.cs deleted file mode 100644 index 643183392..000000000 --- a/src/ServiceConnect.Container.Ninject/NinjectExtensions.cs +++ /dev/null @@ -1,34 +0,0 @@ -using System; -using Ninject; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Container.Ninject -{ - public static class NinjectExtensions - { - /// - /// Initialize the bus with existing instance of Ninject Container. - /// - /// - /// - public static void SetContainer(this IConfiguration configuration, StandardKernel container) - { - configuration.SetContainerType(); - var busContainer = configuration.GetContainer(); - busContainer.Initialize(container); - } - - /// - /// Configure existing instance of Ninject Container. - /// If existing instance does not exist, new one will be created. - /// - /// - /// - public static void ConfigureExistingContainer(this IConfiguration configuration, Action containerAction) - { - configuration.SetContainerType(); - var busContainer = configuration.GetContainer(); - containerAction((StandardKernel)busContainer.GetContainer()); - } - } -} diff --git a/src/ServiceConnect.Container.Ninject/Properties/AssemblyInfo.cs b/src/ServiceConnect.Container.Ninject/Properties/AssemblyInfo.cs deleted file mode 100644 index bb49da2ff..000000000 --- a/src/ServiceConnect.Container.Ninject/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,35 +0,0 @@ -using System.Reflection; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyTitle("ServiceConnect.Container.Ninject")] -[assembly: AssemblyDescription("")] -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("ServiceConnect.Container.Ninject")] -[assembly: AssemblyCopyright("Copyright © ServiceConnect 2015")] -[assembly: AssemblyTrademark("")] -[assembly: AssemblyCulture("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("49d47f81-5f89-40b5-a073-e16923814df6")] - -// Version information for an assembly consists of the following four values: -// -// Major Version -// Minor Version -// Build Number -// Revision -// -// You can specify all the values or you can default the Build and Revision Numbers -// by using the '*' as shown below: -// [assembly: AssemblyVersion("1.0.*")] -[assembly: AssemblyVersion("1.0.0.0")] -[assembly: AssemblyFileVersion("1.0.0.0")] diff --git a/src/ServiceConnect.Container.Ninject/ServiceConnect.Container.Ninject.csproj b/src/ServiceConnect.Container.Ninject/ServiceConnect.Container.Ninject.csproj deleted file mode 100644 index a80e4a69d..000000000 --- a/src/ServiceConnect.Container.Ninject/ServiceConnect.Container.Ninject.csproj +++ /dev/null @@ -1,76 +0,0 @@ - - - - - Debug - AnyCPU - {62AEEB53-EE09-496D-885C-D2EBCB82FA59} - Library - Properties - ServiceConnect.Container.Ninject - ServiceConnect.Container.Ninject - v4.5 - 512 - ..\ - true - - - true - full - false - bin\Debug\ - DEBUG;TRACE - prompt - 4 - - - pdbonly - true - bin\Release\ - TRACE - prompt - 4 - - - - ..\packages\Ninject.3.2.0.0\lib\net45-full\Ninject.dll - - - ..\packages\ninject.extensions.conventions.3.2.0.0\lib\net45-full\Ninject.Extensions.Conventions.dll - - - - - - - - - - - - - - - - - - - Designer - - - - - - - This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them. For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}. - - - - - \ No newline at end of file diff --git a/src/ServiceConnect.Container.Ninject/ServiceConnect.Container.Ninject.nuspec b/src/ServiceConnect.Container.Ninject/ServiceConnect.Container.Ninject.nuspec deleted file mode 100644 index e429263c4..000000000 --- a/src/ServiceConnect.Container.Ninject/ServiceConnect.Container.Ninject.nuspec +++ /dev/null @@ -1,25 +0,0 @@ - - - - ServiceConnect.Container.Ninject - 3.1.5-pre - ServiceConnect.Container.Ninject - Jakub Pachansky,Tim Watson - Jakub Pachansky,Tim Watson - false - A simple, easy to use asynchronous messaging framework for .NET. - en-GB - https://github.com/R-Suite/ServiceConnect - Copyright 2016 ServiceConnect. All rights reserved - MessageBus,Ninject,R MessageBus,ServiceConnect Ninject,RabbitMQ MessageBus,RMessageBus Ninject,Messaging,Message,Bus,Service - - - - - - - - - - - diff --git a/src/ServiceConnect.Container.Ninject/packages.config b/src/ServiceConnect.Container.Ninject/packages.config deleted file mode 100644 index 0c2fbf64a..000000000 --- a/src/ServiceConnect.Container.Ninject/packages.config +++ /dev/null @@ -1,5 +0,0 @@ - - - - - \ No newline at end of file diff --git a/src/ServiceConnect.Container.ServiceCollection/ServiceCollectionContainer.cs b/src/ServiceConnect.Container.ServiceCollection/ServiceCollectionContainer.cs deleted file mode 100644 index f2a97fa58..000000000 --- a/src/ServiceConnect.Container.ServiceCollection/ServiceCollectionContainer.cs +++ /dev/null @@ -1,281 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using System.Reflection; -using Microsoft.Extensions.DependencyInjection; -using Microsoft.Extensions.DependencyInjection.Extensions; -using ServiceConnect.Core; -using ServiceConnect.Interfaces; -using ServiceConnect.Persistance.InMemory; - -namespace ServiceConnect.Container.ServiceCollection -{ - /// - /// ServiceConnect abstraction of Microsoft.Extensions.DependencyInjection.IServiceCollection container - /// - public class ServiceCollectionContainer : IBusContainer - { - private IServiceCollection _serviceCollection = new Microsoft.Extensions.DependencyInjection.ServiceCollection(); - private IServiceProvider _serviceProvider; - private bool _initialized; - - public void Initialize() - { - if (!_initialized) - { - _serviceCollection.AddSingleton(this); - _serviceCollection.AddTransient(); - _serviceCollection.AddTransient(); - _serviceCollection.AddTransient(); - _serviceCollection.AddTransient(); - _serviceCollection.AddSingleton(); - - _serviceCollection.AddTransient(x => new AggregatorProcessor( - new InMemoryAggregatorPersistor("", "", ""), - this, - null, - new Logger())); - - // An implementation for service type IProcessManagerFinder is required for the DI software design pattern - // However the implementation will be overriden by default or can be set via the ServiceConnect Config - // i.e SetProcessManagerFinder, PersistenceStoreConnectionString, PersistenceStoreDatabaseName - _serviceCollection.AddTransient(x => new InMemoryProcessManagerFinder("", "")); - - _initialized = true; - } - } - - public void Initialize(object container) - { - _serviceCollection = (IServiceCollection)container; - - _initialized = false; - Initialize(); - } - - public object GetContainer() - { - return _serviceCollection; - } - - public void AddHandler(Type handlerType, T handler) - { - _serviceCollection.AddSingleton(handlerType, handler); - } - - public void AddBus(IBus bus) - { - _serviceCollection.AddSingleton(x => bus); - } - - public IEnumerable GetHandlerTypes() - { - var instances = _serviceCollection.Where(x => x.ServiceType.Name == typeof(IMessageHandler<>).Name - || x.ServiceType.Name == typeof(IStartProcessManager<>).Name - || x.ServiceType.Name == typeof(IAsyncMessageHandler<>).Name - || x.ServiceType.Name == typeof(IStartAsyncProcessManager<>).Name - || x.ServiceType.Name == typeof(Aggregator<>).Name); - - var retval = new List(); - foreach (var instance in instances) - { - var implementationType = instance.ImplementationType ?? instance.ImplementationInstance?.GetType(); - var routingKeys = new List(); - if (implementationType != null) - { - var attrs = implementationType.GetCustomAttributes(false); - routingKeys = attrs.OfType().Select(rk => rk.GetValue()).ToList(); - } - - retval.Add(new HandlerReference - { - MessageType = instance.ServiceType.GetGenericArguments()[0], - HandlerType = implementationType, - RoutingKeys = routingKeys - }); - } - - return retval; - } - - public IEnumerable GetHandlerTypes(params Type[] messageHandlers) - { - var instances = _serviceCollection.Where(i => messageHandlers.Contains(i.ServiceType)); - - var retval = new List(); - - foreach (var instance in instances) - { - var implementationType = instance.ImplementationType ?? instance.ImplementationInstance?.GetType(); - var routingKeys = new List(); - if (implementationType != null) - { - var attrs = implementationType.GetCustomAttributes(false); - routingKeys = attrs.OfType().Select(rk => rk.GetValue()).ToList(); - } - - retval.Add(new HandlerReference - { - MessageType = instance.ServiceType.GetGenericArguments()[0], - HandlerType = implementationType, - RoutingKeys = routingKeys - }); - } - - return retval; - } - - public object GetInstance(Type handlerType) - { - if (_serviceProvider == null) - _serviceProvider = _serviceCollection.BuildServiceProvider(); - - if (_serviceCollection.Any(v => v.ImplementationType == handlerType)) - { - var serviceDescriptor = _serviceCollection.First(s => s.ImplementationType == handlerType); - return _serviceProvider.GetRequiredService(serviceDescriptor.ServiceType); - } - - if (_serviceCollection.Any(v => v.ImplementationInstance?.GetType() == handlerType)) - { - var serviceDescriptor = _serviceCollection.First(s => s.ImplementationInstance?.GetType() == handlerType); - return _serviceProvider.GetRequiredService(serviceDescriptor.ServiceType); - } - - if (_serviceCollection.Any(k => k.ServiceType == handlerType)) - { - return _serviceProvider.GetRequiredService(handlerType); - } - - try - { - var genericDefinition = handlerType.GetGenericTypeDefinition(); - if (genericDefinition != null && _serviceCollection.Any(v => v.ServiceType == genericDefinition)) - { - return GetGenericInstance(handlerType, _serviceCollection.First(s => s.ServiceType == genericDefinition).ServiceType); - } - } - catch - { - return Activator.CreateInstance(handlerType); - } - - return Activator.CreateInstance(handlerType); - } - - public T GetInstance(IDictionary arguments) - { - if (_serviceCollection.Any(v => v.ServiceType == typeof(T))) - { - var instance = _serviceCollection.First(s => s.ServiceType == typeof(T)); - var implementationType = instance.ImplementationType ?? instance.ImplementationInstance?.GetType(); - ConstructorInfo ctor = implementationType.GetTypeInfo().GetConstructors().First(); - - IList dependecies = new List(); - ParameterInfo[] ctorParams = ctor.GetParameters(); - foreach (ParameterInfo parameterInfo in ctorParams) - { - if (arguments.ContainsKey(parameterInfo.Name)) - dependecies.Add(arguments[parameterInfo.Name]); - } - - var result = ctor.Invoke(dependecies.ToArray()); - return (T)result; - } - - throw new Exception("Type not registered" + typeof(T)); - } - - public T GetInstance() - { - if (_serviceProvider == null) - _serviceProvider = _serviceCollection.BuildServiceProvider(); - - return _serviceProvider.GetRequiredService(); - } - - public void ScanForHandlers() - { - foreach (Assembly asm in AppDomain.CurrentDomain.GetAssemblies()) - { - try - { - var pluginTypes = asm != null ? asm.GetTypes().Where(IsHandler).ToList() : null; - - if (null != pluginTypes && pluginTypes.Count > 0) - { - foreach (var impl in pluginTypes) - { - var types = impl.GetTypeInfo().GetInterfaces().ToList(); - if (impl.GetTypeInfo().BaseType != null && impl.GetTypeInfo().BaseType != typeof(object)) - { - types.Add(impl.GetTypeInfo().BaseType); - } - RegisterFor(impl, types); - } - } - } - catch (Exception e) - { - } - } - } - - private void RegisterFor(Type implementation, IEnumerable interfaces) - { - foreach (var @interface in interfaces) - { - var sd = new ServiceDescriptor(GetRegistrableType(@interface), implementation, ServiceLifetime.Transient); - _serviceCollection.Replace(sd); - } - } - - private static Type GetRegistrableType(Type type) - { - return type.GetTypeInfo().IsGenericType && type.GetTypeInfo().ContainsGenericParameters - ? type.GetGenericTypeDefinition() - : type; - } - - private static bool IsHandler(Type t) - { - if (t == null) - return false; - - var isHandler = t.GetInterfaces().Any(i => i.Name == typeof(IMessageHandler<>).Name) || - t.GetInterfaces().Any(i => i.Name == typeof(IStartProcessManager<>).Name) || - t.GetInterfaces().Any(i => i.Name == typeof(IAsyncMessageHandler<>).Name) || - t.GetInterfaces().Any(i => i.Name == typeof(IStartAsyncProcessManager<>).Name) || - t.GetInterfaces().Any(i => i.Name == typeof(IStreamHandler<>).Name) || - (t.GetTypeInfo().BaseType != null && t.GetTypeInfo().BaseType.Name == typeof(Aggregator<>).Name); - - return isHandler; - } - - private object GetGenericInstance(Type tService, Type genericDefinition) - { - var genericArguments = tService.GetTypeInfo().GetGenericArguments(); - var actualType = genericDefinition.MakeGenericType(genericArguments); - var result = CreateInstance(actualType); - - _serviceCollection.Add(new ServiceDescriptor(tService, result)); - - return result; - } - - private object CreateInstance(Type serviceType) - { - var ctor = serviceType.GetTypeInfo().GetConstructors().First(); - var dependecies = ctor.GetParameters().Select(p => Resolve(p.ParameterType)).ToArray(); - - return ctor.Invoke(dependecies); - } - - private object Resolve(Type tService) - { - var result = GetInstance(tService); - - return result; - } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Container.ServiceCollection/ServiceCollectionExtensions.cs b/src/ServiceConnect.Container.ServiceCollection/ServiceCollectionExtensions.cs deleted file mode 100644 index a15039420..000000000 --- a/src/ServiceConnect.Container.ServiceCollection/ServiceCollectionExtensions.cs +++ /dev/null @@ -1,21 +0,0 @@ -using System; -using Microsoft.Extensions.DependencyInjection; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Container.ServiceCollection -{ - public static class ServiceCollectionExtensions - { - public static void AddServiceConnect(this IServiceCollection services, Action config) - { - Bus.Initialize(newConfig => - { - newConfig.SetContainerType(); - var busContainer = newConfig.GetContainer(); - busContainer.Initialize(services); - - } - + config); - } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Container.ServiceCollection/ServiceConnect.Container.ServiceCollection.csproj b/src/ServiceConnect.Container.ServiceCollection/ServiceConnect.Container.ServiceCollection.csproj deleted file mode 100644 index 09b352ea6..000000000 --- a/src/ServiceConnect.Container.ServiceCollection/ServiceConnect.Container.ServiceCollection.csproj +++ /dev/null @@ -1,18 +0,0 @@ - - - - net6.0 - - - - - - - - - - - - - - \ No newline at end of file diff --git a/src/ServiceConnect.Container.ServiceCollection/ServiceConnect.Container.ServiceCollection.nuspec b/src/ServiceConnect.Container.ServiceCollection/ServiceConnect.Container.ServiceCollection.nuspec deleted file mode 100644 index 2075dd55e..000000000 --- a/src/ServiceConnect.Container.ServiceCollection/ServiceConnect.Container.ServiceCollection.nuspec +++ /dev/null @@ -1,26 +0,0 @@ - - - - ServiceConnect.Container.ServiceCollection - 6.0.0 - ServiceConnect.Container.ServiceCollection - Omar Itani - Omar Itani - false - A simple, easy to use asynchronous messaging framework for .NET. - en-GB - https://github.com/R-Suite/ServiceConnect-CSharp - Copyright 2020 ServiceConnect. All rights reserved - ServiceConnect,MessageBus,ServiceCollection,R MessageBus,ServiceConnect ServiceCollection,RabbitMQ MessageBus,Service.Connect ServiceCollection,Messaging,Message,Bus,Service - - - - - - - - - - - - \ No newline at end of file diff --git a/src/ServiceConnect.Container.StructureMap/Properties/AssemblyInfo.cs b/src/ServiceConnect.Container.StructureMap/Properties/AssemblyInfo.cs deleted file mode 100644 index 46a29f713..000000000 --- a/src/ServiceConnect.Container.StructureMap/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,19 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("ServiceConnect.Container.StructureMap")] -[assembly: AssemblyTrademark("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("f93f32bd-f84c-4432-8887-c70a749bb6d3")] diff --git a/src/ServiceConnect.Container.StructureMap/ServiceConnect.Container.StructureMap.csproj b/src/ServiceConnect.Container.StructureMap/ServiceConnect.Container.StructureMap.csproj deleted file mode 100644 index 0f5413e5f..000000000 --- a/src/ServiceConnect.Container.StructureMap/ServiceConnect.Container.StructureMap.csproj +++ /dev/null @@ -1,22 +0,0 @@ - - - - net6.0 - ServiceConnect.Container.StructureMap - ServiceConnect.Container.StructureMap - false - false - false - 5.0.0 - - - - - - - - - - - - diff --git a/src/ServiceConnect.Container.StructureMap/ServiceConnect.Container.StructureMap.nuspec b/src/ServiceConnect.Container.StructureMap/ServiceConnect.Container.StructureMap.nuspec deleted file mode 100644 index bebb1e722..000000000 --- a/src/ServiceConnect.Container.StructureMap/ServiceConnect.Container.StructureMap.nuspec +++ /dev/null @@ -1,26 +0,0 @@ - - - - ServiceConnect.Container.StructureMap - 6.0.0 - ServiceConnect.Container.StructureMap - Jakub Pachansky,Tim Watson - Jakub Pachansky,Tim Watson - false - A simple, easy to use asynchronous messaging framework for .NET. - en-GB - https://github.com/R-Suite/ServiceConnect - Copyright 2018 ServiceConnect. All rights reserved - ServiceConnect,MessageBus,StructureMap,R MessageBus,ServiceConnect StructureMap,RabbitMQ MessageBus,Service.Connect StructureMap,Messaging,Message,Bus,Service - - - - - - - - - - - - diff --git a/src/ServiceConnect.Container.StructureMap/StructureMapContainer.cs b/src/ServiceConnect.Container.StructureMap/StructureMapContainer.cs deleted file mode 100644 index 01ca94dd0..000000000 --- a/src/ServiceConnect.Container.StructureMap/StructureMapContainer.cs +++ /dev/null @@ -1,139 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using ServiceConnect.Core; -using ServiceConnect.Interfaces; -using StructureMap; -using StructureMap.Graph; -using StructureMap.Pipeline; -using StructureMap.Query; -using System.Reflection; - -namespace ServiceConnect.Container.StructureMap -{ - /// - /// ServiceConnect abstraction of StructureMap container - /// - public class StructureMapContainer : IBusContainer - { - private IContainer _container = new global::StructureMap.Container(); - private bool _initialized; - - public void Initialize() - { - if (!_initialized) - { - _container.Configure(x => - { - x.For().Use(); - x.For().Use(); - x.For().Use(); - x.For().Use(); - x.For().Use(); - }); - - _initialized = true; - } - } - - public void Initialize(object container) - { - _container = (IContainer) container; - _initialized = false; - Initialize(); - } - - public object GetContainer() - { - return _container; - } - - public void AddHandler(Type handlerType, T handler) - { - _container.Configure(x => x.For(handlerType).Singleton().Use(handler)); - } - - public void AddBus(IBus bus) - { - _container.Configure(x => x.For().Singleton().Use(bus)); - } - - public IEnumerable GetHandlerTypes() - { - IEnumerable instances = _container.Model.AllInstances.Where( - i => - i.PluginType.Name == typeof (IMessageHandler<>).Name || - i.PluginType.Name == typeof (IAsyncMessageHandler<>).Name || - i.PluginType.Name == typeof (IStartProcessManager<>).Name || - i.PluginType.Name == typeof (IStartAsyncProcessManager<>).Name || - i.PluginType.Name == typeof (Aggregator<>).Name); - - var retval = new List(); - foreach (var instance in instances) - { - IEnumerable attrs = instance.ReturnedType.GetTypeInfo().GetCustomAttributes(false); - var routingKeys = attrs.OfType().Select(rk => rk.GetValue()).ToList(); - - retval.Add(new HandlerReference - { - MessageType = instance.PluginType.GetGenericArguments()[0], - HandlerType = instance.ReturnedType, - RoutingKeys = routingKeys - }); - } - - return retval; - } - - public IEnumerable GetHandlerTypes(params Type[] messageHandlers) - { - IEnumerable instances = _container.Model.AllInstances.Where(i => messageHandlers.Contains(i.PluginType)); - - var retval = new List(); - - foreach (var instance in instances) - { - IEnumerable attrs = instance.ReturnedType.GetTypeInfo().GetCustomAttributes(false); - var routingKeys = attrs.OfType().Select(rk => rk.GetValue()).ToList(); - - retval.Add(new HandlerReference - { - MessageType = instance.PluginType.GetTypeInfo().GetGenericArguments()[0], - HandlerType = instance.ReturnedType, - RoutingKeys = routingKeys - }); - } - - return retval; - } - - public object GetInstance(Type handlerType) - { - return _container.GetInstance(handlerType); - } - - public T GetInstance(IDictionary arguments) - { - return _container.GetInstance(new ExplicitArguments(arguments)); - } - - public T GetInstance() - { - return _container.GetInstance(); - } - - public void ScanForHandlers() - { - _container.Configure(x => x.Scan(y => - { - y.AssembliesAndExecutablesFromApplicationBaseDirectory(); - y.ConnectImplementationsToTypesClosing(typeof(IMessageHandler<>)); - y.ConnectImplementationsToTypesClosing(typeof(IStartProcessManager<>)); - y.ConnectImplementationsToTypesClosing(typeof(IAsyncMessageHandler<>)); - y.ConnectImplementationsToTypesClosing(typeof(IStartAsyncProcessManager<>)); - y.ConnectImplementationsToTypesClosing(typeof(IStreamHandler<>)); - y.ConnectImplementationsToTypesClosing(typeof(Aggregator<>)); - })); - } - } -} diff --git a/src/ServiceConnect.Container.StructureMap/StructureMapExtensions.cs b/src/ServiceConnect.Container.StructureMap/StructureMapExtensions.cs deleted file mode 100644 index c8016fb54..000000000 --- a/src/ServiceConnect.Container.StructureMap/StructureMapExtensions.cs +++ /dev/null @@ -1,34 +0,0 @@ -using System; -using ServiceConnect.Interfaces; -using StructureMap; - -namespace ServiceConnect.Container.StructureMap -{ - public static class StructureMapExtensions - { - /// - /// Initialize the bus with existing instance of StructureMap Container. - /// - /// - /// - public static void SetContainer(this IConfiguration configuration, IContainer container) - { - configuration.SetContainerType(); - var busContainer = configuration.GetContainer(); - busContainer.Initialize(container); - } - - /// - /// Configure existing instance of StructureMap Container. - /// If existing instance does not exist, new one will be created. - /// - /// - /// - public static void ConfigureExistingContainer(this IConfiguration configuration, Action containerAction) - { - configuration.SetContainerType(); - var busContainer = configuration.GetContainer(); - containerAction((IContainer) busContainer.GetContainer()); - } - } -} diff --git a/src/ServiceConnect.Core/AggregatorProcessor.cs b/src/ServiceConnect.Core/AggregatorProcessor.cs deleted file mode 100644 index 9c3c66b82..000000000 --- a/src/ServiceConnect.Core/AggregatorProcessor.cs +++ /dev/null @@ -1,166 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections; -using System.Collections.Generic; -using System.Linq; -using System.Reflection; -using System.Threading; -using System.Threading.Tasks; -using Common.Logging; -using Newtonsoft.Json; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Core -{ - /// - /// Aggregate messages into batches of a predefined size - /// and pass them to relevant handlers - /// - public class AggregatorProcessor : IAggregatorProcessor - { - private readonly IAggregatorPersistor _aggregatorPersistor; - private readonly IBusContainer _container; - private readonly Type _handlerType; - private readonly ILogger _logger; - private Timer _timer; - private Type _type; - private Type _genericListType; - private readonly object _lock = new object(); - private TimeSpan _timeout; - - public AggregatorProcessor(IAggregatorPersistor aggregatorPersistor, IBusContainer container, Type handlerType, ILogger logger) - { - _aggregatorPersistor = aggregatorPersistor; - _container = container; - _handlerType = handlerType; - _logger = logger; - } - - /// - /// Start new instance of specifying a callback that - /// get all messages from an aggregator persistance store and - /// executes relevant handler type - /// - /// - /// - public void StartTimer(TimeSpan timeout) - { - _type = typeof(T); - _timeout = timeout; - _genericListType = typeof(List<>).MakeGenericType(_type); - _timer = new Timer(Callback, timeout, timeout, timeout); - } - - /// - /// Reset timer with previously defined - /// - public void ResetTimer() - { - if (_timer != null) - { - _timer.Change(_timeout, _timeout); - } - } - - public void ProcessMessage(string message) where T : Message - { - object aggregator = _container.GetInstance(_handlerType); - - var timeout = (TimeSpan)(_handlerType.GetMethod("Timeout").Invoke(aggregator, new object[] { })); - var batchSize = (int)(_handlerType.GetMethod("BatchSize").Invoke(aggregator, new object[] { })); - - var messageObject = JsonConvert.DeserializeObject(message, typeof(T)); - - if (batchSize == 0 && timeout == default(TimeSpan)) - { - batchSize = 10; - } - var typeName = typeof(T).AssemblyQualifiedName; - - lock (_lock) - { - _aggregatorPersistor.InsertData(messageObject, typeName); - - if (batchSize != 0) - { - if (_aggregatorPersistor.Count(typeName) >= batchSize) - { - IList messages = _aggregatorPersistor.GetData(typeName); - - try - { - _handlerType.GetMethod("Execute", new[] { typeof(IList) }).Invoke(aggregator, new object[] {messages.Cast().ToList()}); - } - catch (Exception ex) - { - _logger.Error("Error executing aggregator execute method", ex); - throw; - } - - foreach (var persistedMessage in messages) - { - _aggregatorPersistor.RemoveData(typeName, ((Message)persistedMessage).CorrelationId); - } - - ResetTimer(); - } - } - } - } - - private void Callback(object state) - { - lock (_lock) - { - if (_aggregatorPersistor.Count(_type.AssemblyQualifiedName) > 0) - { - object aggregator = _container.GetInstance(_handlerType); - var messages = _aggregatorPersistor.GetData(_type.AssemblyQualifiedName); - var messageList = (IList)Activator.CreateInstance(_genericListType); - - foreach (var item in messages) - { - messageList.Add(item); - } - - try - { - _handlerType.GetMethod("Execute", new[] { _genericListType }).Invoke(aggregator, new object[] { messageList }); - } - catch (Exception) - { - _logger.Error("Error executing aggregator execute method"); - throw; - } - foreach (var persistedMessage in messages) - { - _aggregatorPersistor.RemoveData(_type.AssemblyQualifiedName, ((Message)persistedMessage).CorrelationId); - } - } - } - } - - /// - /// Dispose timer - /// - public void Dispose() - { - _timer.Dispose(); - } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Core/BusState.cs b/src/ServiceConnect.Core/BusState.cs deleted file mode 100644 index a40e6d143..000000000 --- a/src/ServiceConnect.Core/BusState.cs +++ /dev/null @@ -1,24 +0,0 @@ -using ServiceConnect.Interfaces; -using System; -using System.Collections.Generic; - -namespace ServiceConnect.Core -{ - public class BusState : IBusState - { - public IDictionary RequestConfigurations { get; set; } - public IDictionary ByteStreams { get; set; } - public object RequestLock { get; set; } - public object ByteStreamLock { get; set; } - public IDictionary AggregatorProcessors { get; set; } - - public BusState() - { - RequestConfigurations = new Dictionary(); - ByteStreams = new Dictionary(); - RequestLock = new object(); - ByteStreamLock = new object(); - AggregatorProcessors = new Dictionary(); - } - } -} diff --git a/src/ServiceConnect.Core/ConsumeContext.cs b/src/ServiceConnect.Core/ConsumeContext.cs deleted file mode 100644 index 901fc9edb..000000000 --- a/src/ServiceConnect.Core/ConsumeContext.cs +++ /dev/null @@ -1,54 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; -using System.Text; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Core -{ - public class ConsumeContext : IConsumeContext - { - private IBus _bus; - - public IBus Bus - { - set { _bus = value; } - } - - public IDictionary Headers { get; set; } - - public void Reply(TReply message, Dictionary headers) where TReply : Message - { - headers["ResponseMessageId"] = Encoding.ASCII.GetString((byte[]) Headers["RequestMessageId"]); - - if (Headers.ContainsKey("SourceAddress")) - { - _bus.Send(Encoding.ASCII.GetString((byte[])Headers["SourceAddress"]), message, headers); - } - else - { - throw new ArgumentException("SourceAddress not found in message headers."); - } - } - - public void Reply(TReply message) where TReply : Message - { - Reply(message, new Dictionary()); - } - } -} diff --git a/src/ServiceConnect.Core/ExpiredTimeoutsPoller.cs b/src/ServiceConnect.Core/ExpiredTimeoutsPoller.cs deleted file mode 100644 index 8a0ba0f42..000000000 --- a/src/ServiceConnect.Core/ExpiredTimeoutsPoller.cs +++ /dev/null @@ -1,101 +0,0 @@ -using System; -using System.Threading; -using System.Threading.Tasks; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Core -{ - public class ExpiredTimeoutsPoller - { - private readonly IProcessManagerFinder _processManagerFinder; - private readonly IBus _bus; - readonly object _locker = new object(); - CancellationTokenSource _tokenSource; - - public ExpiredTimeoutsPoller(IBus bus) - { - _bus = bus; - _processManagerFinder = bus.Configuration.GetProcessManagerFinder(); - - _processManagerFinder.TimeoutInserted += _processManagerFinder_TimeoutInserted; - - NextQueryUtc = DateTime.UtcNow; - } - - public DateTime NextQueryUtc { get; private set; } - - /// - /// Handle the event when a new timeout is requested - /// - /// - void _processManagerFinder_TimeoutInserted(DateTime timeoutTime) - { - lock (_locker) - { - if (NextQueryUtc > timeoutTime) - { - NextQueryUtc = timeoutTime; - } - } - } - - public void Start() - { - _tokenSource = new CancellationTokenSource(); - Poll(_tokenSource.Token); - } - - public void Stop() - { - _tokenSource.Cancel(); - } - - async void Poll(CancellationToken cancellationToken) - { - while (!cancellationToken.IsCancellationRequested) - { - InnerPoll(cancellationToken); - await Task.Delay(1000, cancellationToken).ConfigureAwait(false); - } - } - - public void InnerPoll(CancellationToken cancellationToken) - { - var utcNow = DateTime.UtcNow; - - if (NextQueryUtc > utcNow || cancellationToken.IsCancellationRequested) - { - return; - } - - // connect to the data store and get all the expired timeouts - TimeoutsBatch timeoutsBatch = _processManagerFinder.GetTimeoutsBatch(); - - foreach (var timeoutData in timeoutsBatch.DueTimeouts) - { - if (cancellationToken.IsCancellationRequested) - { - return; - } - - // dispatch the timeout message - var timeoutMsg = new TimeoutMessage(timeoutData.ProcessManagerId); - _bus.Send(timeoutData.Destination, timeoutMsg); - - // remove dispatch timeout - _processManagerFinder.RemoveDispatchedTimeout(timeoutData.Id); - } - - lock (_locker) - { - var nextQueryTime = timeoutsBatch.NextQueryTime; - - // ensure to poll at least every minute - var maxNextQuery = utcNow.AddMinutes(1); - - NextQueryUtc = (nextQueryTime > maxNextQuery) ? maxNextQuery : nextQueryTime; - - } - } - } -} diff --git a/src/ServiceConnect.Core/HeartbeatMessage.cs b/src/ServiceConnect.Core/HeartbeatMessage.cs deleted file mode 100644 index aa3f3bd59..000000000 --- a/src/ServiceConnect.Core/HeartbeatMessage.cs +++ /dev/null @@ -1,36 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Core -{ - public class HeartbeatMessage : Message - { - public HeartbeatMessage(Guid correlationId) : base(correlationId) - { - } - - public DateTime Timestamp { get; set; } - public string Name { get; set; } - public string Location { get; set; } - public double LatestCpu { get; set; } - public double LatestMemory { get; set; } - public string ConsumerType { get; set; } - public string Language { get; set; } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Core/HeartbeatTimerState.cs b/src/ServiceConnect.Core/HeartbeatTimerState.cs deleted file mode 100644 index 52ffde285..000000000 --- a/src/ServiceConnect.Core/HeartbeatTimerState.cs +++ /dev/null @@ -1,28 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System.Diagnostics; - -namespace ServiceConnect.Core -{ - public class HeartbeatTimerState - { -#if NET451 - public PerformanceCounter CpuCounter { get; set; } - public PerformanceCounter RamCounter { get; set; } -#endif - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Core/Logger.cs b/src/ServiceConnect.Core/Logger.cs deleted file mode 100644 index ca0caa189..000000000 --- a/src/ServiceConnect.Core/Logger.cs +++ /dev/null @@ -1,57 +0,0 @@ -using System; -using Common.Logging; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Core -{ - public class Logger : ILogger - { - private static readonly ILog Log = LogManager.GetLogger(typeof(Logger)); - - public void Debug(string message) - { - Log.Debug(message); - } - - public void Info(string message) - { - Log.Info(message); - } - - public void Error(string message, Exception ex = null) - { - if (ex == null) - { - Log.Error(message); - } - else - { - Log.Error(message, ex); - } - } - - public void Warn(string message, Exception ex = null) - { - if (ex == null) - { - Log.Warn(message); - } - else - { - Log.Warn(message, ex); - } - } - - public void Fatal(string message, Exception ex = null) - { - if (ex == null) - { - Log.Fatal(message); - } - else - { - Log.Fatal(message, ex); - } - } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Core/MessageBusReadStream.cs b/src/ServiceConnect.Core/MessageBusReadStream.cs deleted file mode 100644 index f28d83288..000000000 --- a/src/ServiceConnect.Core/MessageBusReadStream.cs +++ /dev/null @@ -1,69 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Core -{ - public class MessageBusReadStream : IMessageBusReadStream - { - private long _currentPacket = 1; - private readonly SortedDictionary _packetQueue = new SortedDictionary(); - private readonly object _byteStreamLock = new object(); - - public Int64 LastPacketNumber { get; set; } - public MessageBusStreamComplete CompleteEventHandler { get; set; } - public string SequenceId { get; set; } - - public int HandlerCount { get; set; } - - public bool IsComplete() - { - var complete = LastPacketNumber == _currentPacket; - if (complete) - { - CompleteEventHandler(SequenceId); - } - return complete; - } - - public void Write(byte[] data, Int64 packetNumber) - { - lock (_byteStreamLock) - { - _packetQueue.Add(packetNumber, data); - } - } - - public byte[] Read() - { - lock (_byteStreamLock) - { - if (!_packetQueue.ContainsKey(_currentPacket)) - { - return new byte[0]; - } - - var data = _packetQueue[_currentPacket]; - _packetQueue.Remove(_currentPacket); - _currentPacket++; - return data; - } - } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Core/MessageBusWriteStream.cs b/src/ServiceConnect.Core/MessageBusWriteStream.cs deleted file mode 100644 index d4fe72dd9..000000000 --- a/src/ServiceConnect.Core/MessageBusWriteStream.cs +++ /dev/null @@ -1,87 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Core -{ - public class MessageBusWriteStream : IMessageBusWriteStream - { - private IProducer _producer; - private readonly long _packetSize; - private readonly string _endPoint; - private readonly string _sequenceId; - private readonly IConfiguration _configuration; - private Int64 _packetsSent; - - public MessageBusWriteStream(IProducer producer, string endPoint, string sequenceId, IConfiguration configuration) - { - _producer = producer; - _endPoint = endPoint; - _sequenceId = sequenceId; - _configuration = configuration; - _packetSize = producer.MaximumMessageSize; - _packetsSent = 0; - } - - public void Write(byte[] buffer, int offset, int count) - { - var currentPacketSize = (count <= (int)_packetSize) ? count : (int)_packetSize; - - for (int i = offset; i < count; i += currentPacketSize) - { - var subArray = SubArray(buffer, i, currentPacketSize); - - _packetsSent++; - _producer.SendBytes(_endPoint, subArray, new Dictionary - { - { "SequenceId", _sequenceId }, - { "PacketNumber", _packetsSent.ToString() } - }); - } - } - - private static byte[] SubArray(byte[] data, int index, int length) - { - if (data.Length < index + length) - { - length = data.Length - index; - } - byte[] result = new byte[length]; - Array.Copy(data, index, result, 0, length); - return result; - } - - public void Close() - { - _packetsSent++; - _producer.SendBytes(_endPoint, new byte[0], new Dictionary - { - { "SequenceId", _sequenceId }, - { "Stop", string.Empty }, - { "PacketNumber", _packetsSent.ToString()} - }); - } - - public void Dispose() - { - Close(); - _producer = null; - } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Core/MessageHandlerProcessor.cs b/src/ServiceConnect.Core/MessageHandlerProcessor.cs deleted file mode 100644 index e0717f848..000000000 --- a/src/ServiceConnect.Core/MessageHandlerProcessor.cs +++ /dev/null @@ -1,147 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.CodeDom; -using System.Collections.Generic; -using System.Linq; -using System.Reflection; -using System.Text; -using System.Threading.Tasks; -using Common.Logging; -using Newtonsoft.Json; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Core -{ - public class MessageHandlerProcessor : IMessageHandlerProcessor - { - private readonly IBusContainer _container; - private readonly ILogger _logger; - - public MessageHandlerProcessor(IBusContainer container, ILogger logger) - { - _container = container; - _logger = logger; - } - - public async Task ProcessMessage(string message, IConsumeContext context) where T : Message - { - List handlerReferences = _container.GetHandlerTypes(typeof(IMessageHandler), typeof(IAsyncMessageHandler)) - .Where(h => h.HandlerType.GetTypeInfo().BaseType == null || - h.HandlerType.GetTypeInfo().BaseType.Name != typeof(ProcessManager<>).Name) - .ToList(); - - await InitHandlers(message, context, handlerReferences); - } - - private async Task ProcessMessageBaseType(string message, IConsumeContext context) where T : Message where TB : Message - { - List handlerReferences = _container.GetHandlerTypes(typeof(IMessageHandler), typeof(IAsyncMessageHandler)) - .Where(h => h.HandlerType.GetTypeInfo().BaseType == null || - h.HandlerType.GetTypeInfo().BaseType.Name != typeof(ProcessManager<>).Name) - .ToList(); - - await InitHandlers(message, context, handlerReferences, typeof(TB)); - } - - private async Task InitHandlers(string message, IConsumeContext context, List handlerReferences, Type baseType = null) where T : Message - { - MethodInfo executeHandler = GetType().GetMethod("ExecuteHandler", BindingFlags.NonPublic | BindingFlags.Instance); - MethodInfo genericexecuteHandler = null != baseType ? executeHandler.MakeGenericMethod(baseType) : executeHandler.MakeGenericMethod(typeof(T)); - - var tasks = new List(); - foreach (HandlerReference handlerReference in handlerReferences) - { - object messageObject = JsonConvert.DeserializeObject(message, typeof (T)); - var result = genericexecuteHandler.Invoke(this, new[] { messageObject, handlerReference.HandlerType, handlerReference.RoutingKeys, context }); - if (result != null) - { - tasks.Add((Task)result); - } - } - - string messageType = string.Empty; - if (null != context && null != context.Headers && context.Headers.ContainsKey("MessageType")) - { - messageType = Encoding.UTF8.GetString((byte[]) context.Headers["MessageType"]); - } - - // If the message was published (rather than sent), no need to scan for handlers interested in the BaseType messages... - // The Publisher (owner of the contract) will explicitely publish all of the message's base types (if any). - if (messageType != "Publish") - { - // Get message BaseType and call ProcessMessage recursively to see if there are any handlers interested in the BaseType - Type newBaseType = (null != baseType) ? baseType.GetTypeInfo().BaseType : typeof (T).GetTypeInfo().BaseType; - if (newBaseType != null && newBaseType.Name != typeof (object).Name) - { - MethodInfo processMessage = GetType().GetMethod("ProcessMessageBaseType", BindingFlags.NonPublic | BindingFlags.Instance); - MethodInfo genericProcessMessage = processMessage.MakeGenericMethod(typeof (T), newBaseType); - var resultTask = (Task)genericProcessMessage.Invoke(this, new object[] {message, context}); - tasks.Add(resultTask); - } - } - - await Task.WhenAll(tasks); - } - - private async Task ExecuteHandler(T message, Type handlerType, IList routingKeys, IConsumeContext context) where T : Message - { - // Ignore irelevant handlers - if (null != context && null != context.Headers && context.Headers.ContainsKey("RoutingKey")) - { - string msgRoutingKey = Encoding.UTF8.GetString((byte[])context.Headers["RoutingKey"]); - - if (!routingKeys.Contains(msgRoutingKey) && !routingKeys.Contains("#")) - { - _logger.Debug("Ignoring handler execution."); - return; - } - } - else - { - if (null != routingKeys && routingKeys.Any()) - { - _logger.Debug("Ignoring handler execution."); - return; - } - } - - // Execute handler - try - { - var handler = _container.GetInstance(handlerType); - - if (handler is IMessageHandler syncHandler) - { - syncHandler.Context = context; - syncHandler.Execute(message); - } - - if (handler is IAsyncMessageHandler asyncHandler) - { - asyncHandler.Context = context; - await asyncHandler.Execute(message); - } - } - catch (Exception ex) - { - _logger.Error(string.Format("Error executing handler. {0}", handlerType.FullName), ex); - throw; - } - } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Core/ProcessManager.cs b/src/ServiceConnect.Core/ProcessManager.cs deleted file mode 100644 index cd9d280e1..000000000 --- a/src/ServiceConnect.Core/ProcessManager.cs +++ /dev/null @@ -1,87 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.ComponentModel; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Core -{ - /// - /// See ProccessManager (G. Hohpe, B. Woolf; Enterprise Integration Patterns) - /// - public abstract class ProcessManager where T : class, IProcessManagerData - { - private ProcessManagerPropertyMapper _mapper; - - public IConsumeContext Context { get; set; } - - /// - /// The ProcessManager's strongly typed data. - /// - public T Data { get; set; } - - /// - /// Use to locate/delete ProcessManager data in a persistant store - /// - public IProcessManagerFinder ProcessManagerFinder { get; set; } - - /// - /// Marks the ProcessManager as complete. - /// - protected virtual void MarkAsComplete() - { - Complete = true; - } - - public bool Complete { get; set; } - - protected virtual void RequestTimeout(TimeSpan timeout) - { - var timeoutData = new TimeoutData - { - Destination = Context.Headers["DestinationAddress"].ToString(), - ProcessManagerId = Data.CorrelationId, - Headers = Context.Headers, - Id = Guid.NewGuid(), - Time = DateTime.UtcNow.Add(timeout) - }; - - ProcessManagerFinder.InsertTimeout(timeoutData); - } - - /// - /// Configure mapper and finds process manager data using configured ProcessManagerFinder - /// - /// - /// - public virtual IPersistanceData FindProcessManagerData(Message message) - { - // FindProcessManagerData is always called on new instance of ProcessManager - _mapper = new ProcessManagerPropertyMapper(); - - ConfigureHowToFindProcessManager(_mapper); - - // Default mapping - _mapper.ConfigureMapping(m => m.CorrelationId, pm => pm.CorrelationId); - - return ProcessManagerFinder.FindData(_mapper, message); - } - - protected virtual void ConfigureHowToFindProcessManager(IProcessManagerPropertyMapper mapper) - {} - } -} diff --git a/src/ServiceConnect.Core/ProcessManagerProcessor.cs b/src/ServiceConnect.Core/ProcessManagerProcessor.cs deleted file mode 100644 index 51010f735..000000000 --- a/src/ServiceConnect.Core/ProcessManagerProcessor.cs +++ /dev/null @@ -1,264 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; -using System.Linq; -using System.Reflection; -using System.Threading.Tasks; -using Newtonsoft.Json; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Core -{ - public class ProcessManagerProcessor : IProcessManagerProcessor - { - private readonly IProcessManagerFinder _processManagerFinder; - private readonly IBusContainer _container; - private readonly ILogger _logger; - - public ProcessManagerProcessor(IProcessManagerFinder processManagerFinder, IBusContainer container, ILogger logger) - { - _processManagerFinder = processManagerFinder; - _container = container; - _logger = logger; - } - - public async Task ProcessMessage(string message, IConsumeContext context) where T : Message - { - await StartProcessManagers(message, context); - await LoadExistingProcessManagers(message, context); - } - - private async Task StartProcessManagersBaseType(string message, IConsumeContext context) where T : Message where TB : Message - { - List processManagerInstances = _container.GetHandlerTypes(typeof(IStartProcessManager), typeof(IStartAsyncProcessManager)).ToList(); - - await InitStartProcessManagerHandlers(message, context, processManagerInstances, typeof(TB)); - } - - private async Task StartProcessManagers(string message, IConsumeContext context, Type baseType = null) where T : Message - { - List processManagerInstances = _container.GetHandlerTypes(typeof(IStartProcessManager), typeof(IStartAsyncProcessManager)).ToList(); - - await InitStartProcessManagerHandlers(message, context, processManagerInstances, baseType); - } - - private async Task InitStartProcessManagerHandlers(string message, IConsumeContext context, IEnumerable processManagerInstances, Type baseType = null) where T : Message - { - Type msgType = baseType ?? typeof(T); - - foreach (HandlerReference processManagerInstance in processManagerInstances) - { - try - { - var messageObject = JsonConvert.DeserializeObject(message, typeof (T)); - - // Create instance of the project manager - object processManager = _container.GetInstance(processManagerInstance.HandlerType); - - // Set Process Manager Finder property - PropertyInfo processManagerFinderProp = processManagerInstance.HandlerType.GetProperty("ProcessManagerFinder"); - processManagerFinderProp.SetValue(processManager, _processManagerFinder, null); - - // Execute FindProcessManagerData - see if already exists - object persistanceData = processManagerInstance.HandlerType.GetMethod("FindProcessManagerData").Invoke(processManager, new[] { messageObject }); - - // Get Data Type - Type dataType = processManagerInstance.HandlerType.GetTypeInfo().BaseType.GetGenericArguments()[0]; - - bool processManagerAlreadyExists = true; - object data; - - // Process Manager Data does not exist, create new instance - if (null == persistanceData) - { - processManagerAlreadyExists = false; - data = (IProcessManagerData)Activator.CreateInstance(dataType); - } - else - { - // Get data from persistance data - Type persistanceType = typeof(IPersistanceData<>).MakeGenericType(dataType); - PropertyInfo dataProp = persistanceType.GetProperty("Data"); - data = dataProp.GetValue(persistanceData); - } - - // Set data on process manager - PropertyInfo prop = processManagerInstance.HandlerType.GetProperty("Data", dataType); - prop.SetValue(processManager, data, null); - - // Set context property value - PropertyInfo contextProp = processManagerInstance.HandlerType.GetProperty("Context", typeof (IConsumeContext)); - contextProp.SetValue(processManager, context, null); - - // Execute process manager execute method - var result = processManagerInstance.HandlerType.GetMethod("Execute", new[] { msgType }).Invoke(processManager, new[] { messageObject }); - - if (result != null && result is Task handlerTask) - { - await handlerTask; - } - - // Persist data if does not exist - if (!processManagerAlreadyExists) - { - // Get data after execute has finished - data = (IProcessManagerData)prop.GetValue(processManager); - - // Insert it - _processManagerFinder.InsertData((IProcessManagerData) data); - } - else - { - // Otherwise update - _processManagerFinder.GetType() - .GetMethod("UpdateData") - .MakeGenericMethod(dataType) - .Invoke(_processManagerFinder, new[] { persistanceData }); - } - } - catch (Exception ex) - { - _logger.Error( - string.Format("Error executing process manager start handler. {0}", - processManagerInstance.HandlerType.FullName), ex); - throw; - } - } - - // This is used when processing Sent (rather than Published) messages - // Get message BaseType and call ProcessMessage recursively to see if there are any handlers interested in the BaseType - Type newBaseType = msgType.GetTypeInfo().BaseType; - if (newBaseType != null && newBaseType.Name != typeof(object).Name) - { - MethodInfo startProcessManagers = GetType().GetMethod("StartProcessManagersBaseType", BindingFlags.NonPublic | BindingFlags.Instance); - MethodInfo genericStartProcessManagers = startProcessManagers.MakeGenericMethod(typeof (T), newBaseType); - await (Task)genericStartProcessManagers.Invoke(this, new object[] {message, context}); - } - } - - - private async Task LoadExistingProcessManagersBaseType(string message, IConsumeContext context) where T : Message where TB : Message - { - IEnumerable handlerReferences = _container.GetHandlerTypes(typeof(IMessageHandler), typeof(IAsyncMessageHandler)) - .Where(h => h.HandlerType.GetTypeInfo().BaseType != null && - h.HandlerType.GetTypeInfo().BaseType.Name == typeof(ProcessManager<>).Name); - - await InitLoadExistingProcessManagerHandlers(message, context, handlerReferences, typeof(TB)); - } - - private async Task LoadExistingProcessManagers(string message, IConsumeContext context, Type baseType = null) where T : Message - { - IEnumerable handlerReferences = _container.GetHandlerTypes(typeof(IMessageHandler), typeof(IAsyncMessageHandler)) - .Where(h => h.HandlerType.GetTypeInfo().BaseType != null && - h.HandlerType.GetTypeInfo().BaseType.Name == typeof(ProcessManager<>).Name); - - await InitLoadExistingProcessManagerHandlers(message, context, handlerReferences, baseType); - } - - private async Task InitLoadExistingProcessManagerHandlers(string message, IConsumeContext context, IEnumerable handlerReferences, Type baseType = null) where T : Message - { - Type msgType = baseType ?? typeof(T); - - foreach (HandlerReference handlerReference in handlerReferences) - { - try - { - var messageObject = (Message) JsonConvert.DeserializeObject(message, typeof (T)); - - // Create instance of the project manager - object processManager = _container.GetInstance(handlerReference.HandlerType); - - // Set Process Manager Finder property - PropertyInfo processManagerFinderProp = handlerReference.HandlerType.GetProperty("ProcessManagerFinder"); - processManagerFinderProp.SetValue(processManager, _processManagerFinder, null); - - // Execute FindProcessManagerData - object persistanceData = handlerReference.HandlerType.GetMethod("FindProcessManagerData").Invoke(processManager, new[] {messageObject}); - - // Get data type - Type dataType = handlerReference.HandlerType.GetTypeInfo().BaseType.GetGenericArguments()[0]; - - if (null == persistanceData) - { - _logger.Warn(string.Format("ProcessManagerData not found for {0}. message.CorrelationId = {1}", handlerReference.HandlerType, messageObject.CorrelationId)); - continue; - } - - // Get data from persistance data - Type persistanceType = typeof (IPersistanceData<>).MakeGenericType(dataType); - PropertyInfo dataProp = persistanceType.GetProperty("Data"); - object data = dataProp.GetValue(persistanceData); - - // Set data property value - PropertyInfo prop = handlerReference.HandlerType.GetProperty("Data", dataType); - prop.SetValue(processManager, data, null); - - // Set context property value - PropertyInfo contextProp = handlerReference.HandlerType.GetProperty("Context", typeof (IConsumeContext)); - contextProp.SetValue(processManager, context, null); - - // ***Execute handler*** - var result = handlerReference.HandlerType.GetMethod("Execute", new[] { msgType }).Invoke(processManager, new object[] { messageObject }); - - if (result != null && result is Task handlerTask) - { - await handlerTask; - } - - // Get Complete property value - PropertyInfo completeProperty = handlerReference.HandlerType.GetProperty("Complete"); - var isComplete = (bool) completeProperty.GetValue(processManager); - - if (isComplete) - { - // Delete if the process manager is complete - _processManagerFinder.GetType() - .GetMethod("DeleteData") - .MakeGenericMethod(dataType) - .Invoke(_processManagerFinder, new[] {persistanceData}); - } - else - { - // Otherwise update - _processManagerFinder.GetType() - .GetMethod("UpdateData") - .MakeGenericMethod(dataType) - .Invoke(_processManagerFinder, new[] {persistanceData}); - } - } - catch (Exception ex) - { - _logger.Error( - string.Format("Error executing process manager handler. {0}", handlerReference.HandlerType.FullName), - ex); - throw; - } - } - - // This is used when processing Sent (rather than Published) messages - // Get message BaseType and call ProcessMessage recursively to see if there are any handlers interested in the BaseType - Type newBaseType = msgType.GetTypeInfo().BaseType; - if (newBaseType != null && newBaseType.Name != typeof (object).Name) - { - MethodInfo loadExistingProcessManagers = GetType().GetMethod("LoadExistingProcessManagersBaseType", BindingFlags.NonPublic | BindingFlags.Instance); - MethodInfo genericLoadExistingProcessManagers = loadExistingProcessManagers.MakeGenericMethod(typeof (T),newBaseType); - await (Task)genericLoadExistingProcessManagers.Invoke(this, new object[] {message, context}); - } - } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Core/ProcessManagerPropertyMapper.cs b/src/ServiceConnect.Core/ProcessManagerPropertyMapper.cs deleted file mode 100644 index 8964b8c3a..000000000 --- a/src/ServiceConnect.Core/ProcessManagerPropertyMapper.cs +++ /dev/null @@ -1,105 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; -using System.Linq.Expressions; -using System.Reflection; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Core -{ - /// - /// Creates mapping between ProcessManager property and Message property. - /// - public class ProcessManagerPropertyMapper : IProcessManagerPropertyMapper - { - public List Mappings { get; set; } - - public ProcessManagerPropertyMapper() - { - Mappings = new List(); - } - - public void ConfigureMapping(Expression> processManagerProperty, Expression> messageExpression) where TProcessManagerData : IProcessManagerData - { - MemberExpression me = GetMemberExpression(processManagerProperty); - MemberInfo mi = me.Member; - - var propertiesHierarchy = new Dictionary(); - - while (true) - { - var pi = mi as PropertyInfo; - if (null == pi) throw new ArgumentException("Member is not a property"); - - propertiesHierarchy.Add(mi.Name, pi.PropertyType); - - //if (mi.ReflectedType == typeof(TProcessManagerData)) - if (mi.DeclaringType == typeof(TProcessManagerData)) - { - break; - } - me = (me.Expression as MemberExpression); - if (me == null) - throw new ArgumentException("Expression is not a member access"); - - mi = me.Member; - } - - Func compiledMessageExpression = messageExpression.Compile(); - var messageFunc = new Func(o => compiledMessageExpression((TMessage)o)); - - Mappings.Add(new ProcessManagerToMessageMap - { - MessageProp = messageFunc, - MessageType = typeof(TMessage), - PropertiesHierarchy = propertiesHierarchy - }); - } - - /// - /// http://stackoverflow.com/questions/671968/retrieving-property-name-from-lambda-expression - /// - /// - /// - static MemberExpression GetMemberExpression(Expression propertyExpression) - { - if (propertyExpression == null) - throw new ArgumentNullException("propertyExpression"); - - var lambda = propertyExpression as LambdaExpression; - if (lambda == null) - throw new ArgumentException("Not a lambda expression", "propertyExpression"); - - MemberExpression memberExpr = null; - - if (lambda.Body.NodeType == ExpressionType.Convert) - { - memberExpr = ((UnaryExpression)lambda.Body).Operand as MemberExpression; - } - else if (lambda.Body.NodeType == ExpressionType.MemberAccess) - { - memberExpr = lambda.Body as MemberExpression; - } - - if (memberExpr == null) - throw new ArgumentException("Expression is not a member access", "propertyExpression"); - - return memberExpr; - } - } -} diff --git a/src/ServiceConnect.Core/ProcessMessagePipeline.cs b/src/ServiceConnect.Core/ProcessMessagePipeline.cs deleted file mode 100644 index 63f9ae4b4..000000000 --- a/src/ServiceConnect.Core/ProcessMessagePipeline.cs +++ /dev/null @@ -1,117 +0,0 @@ -using ServiceConnect.Interfaces; -using System; -using System.Collections.Generic; -using System.Linq; -using System.Reflection; -using System.Text; -using System.Threading.Tasks; - -namespace ServiceConnect.Core -{ - public class ProcessMessagePipeline : IProcessMessagePipeline - { - private readonly IConfiguration _configuration; - private readonly IBusState _busState; - private readonly IBusContainer _container; - private readonly ILogger _logger; - - public ProcessMessagePipeline(IConfiguration configuration, IBusState busState) - { - _configuration = configuration; - _busState = busState; - _container = configuration.GetContainer(); - _logger = configuration.GetLogger(); - } - - public async Task ExecutePipeline(IConsumeContext context, Type typeObject, Envelope envelope) - { - // Build process message pipeline - ProcessMessageDelegate current = ProcessMessage; - for (int i = _configuration.MessageProcessingMiddleware.Count; i > 0; i--) - { - var middleware = (IProcessMessageMiddleware)_container.GetInstance(_configuration.MessageProcessingMiddleware[i - 1]); - middleware.Next = current; - current = middleware.Process; - } - // Execute first delegate - await current(context, typeObject, envelope); - } - - private async Task ProcessMessage(IConsumeContext context, Type typeObject, Envelope envelope) - { - var tasks = new List(); - tasks.Add(ProcessMessageHandlers(envelope.Body, typeObject, context)); - tasks.Add(ProcessProcessManagerHandlers(envelope.Body, typeObject, context)); - ProcessAggregatorHandlers(envelope.Body, typeObject); - ProcessRequestReplyConfigurations(envelope.Body, typeObject, context); - await Task.WhenAll(tasks); - } - - private async Task ProcessProcessManagerHandlers(byte[] objectMessage, Type type, IConsumeContext context) - { - IProcessManagerFinder processManagerFinder = _configuration.GetProcessManagerFinder(); - var processManagerProcessor = _container.GetInstance(new Dictionary - { - {"container", _container}, - {"processManagerFinder", processManagerFinder}, - {"logger", _logger } - }); - - MethodInfo processManagerProcessorMethod = processManagerProcessor.GetType().GetMethod("ProcessMessage"); - MethodInfo genericProcessManagerProcessorMethod = processManagerProcessorMethod.MakeGenericMethod(type); - await (Task)genericProcessManagerProcessorMethod.Invoke(processManagerProcessor, new object[] { Encoding.UTF8.GetString(objectMessage), context }); - } - - private async Task ProcessMessageHandlers(byte[] objectMessage, Type type, IConsumeContext context) - { - var messageHandlerProcessor = _container.GetInstance(new Dictionary - { - {"container", _container}, - {"logger", _logger } - }); - MethodInfo handlerProcessorMethod = messageHandlerProcessor.GetType().GetMethod("ProcessMessage"); - MethodInfo genericHandlerProcessorMethod = handlerProcessorMethod.MakeGenericMethod(type); - var result = genericHandlerProcessorMethod.Invoke(messageHandlerProcessor, new object[] { Encoding.UTF8.GetString(objectMessage), context }); - await (Task)result; - } - - private void ProcessRequestReplyConfigurations(byte[] byteMessage, Type typeObject, IConsumeContext context) - { - lock (_busState.RequestLock) - { - if (!context.Headers.ContainsKey("ResponseMessageId")) - { - return; - } - - string messageId = Encoding.UTF8.GetString((byte[])context.Headers["ResponseMessageId"]); - if (!_busState.RequestConfigurations.ContainsKey(messageId)) - { - return; - } - IRequestConfiguration requestConfigration = _busState.RequestConfigurations[messageId]; - - requestConfigration.ProcessMessage(Encoding.UTF8.GetString(byteMessage), typeObject); - - if (requestConfigration.ProcessedCount == requestConfigration.EndpointsCount) - { - var item = _busState.RequestConfigurations.First(kvp => kvp.Key == messageId); - _busState.RequestConfigurations.Remove(item.Key); - } - } - } - - private void ProcessAggregatorHandlers(byte[] objectMessage, Type type) - { - if (_busState.AggregatorProcessors.ContainsKey(type)) - { - IAggregatorProcessor aggregatorProcessor = _busState.AggregatorProcessors[type]; - - MethodInfo aggregatorProcessorMethod = aggregatorProcessor.GetType().GetMethod("ProcessMessage"); - MethodInfo genericAggregatorProcessorMethod = aggregatorProcessorMethod.MakeGenericMethod(type); - genericAggregatorProcessorMethod.Invoke(aggregatorProcessor, new object[] { Encoding.UTF8.GetString(objectMessage) }); - } - } - - } -} diff --git a/src/ServiceConnect.Core/Properties/AssemblyInfo.cs b/src/ServiceConnect.Core/Properties/AssemblyInfo.cs deleted file mode 100644 index cfca75598..000000000 --- a/src/ServiceConnect.Core/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,19 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("ServiceConnect.Core")] -[assembly: AssemblyTrademark("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("ba164006-a9c9-47bc-aeca-d912c1a0e835")] diff --git a/src/ServiceConnect.Core/RequestConfiguration.cs b/src/ServiceConnect.Core/RequestConfiguration.cs deleted file mode 100644 index 3b09f0587..000000000 --- a/src/ServiceConnect.Core/RequestConfiguration.cs +++ /dev/null @@ -1,66 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Linq; -using System.Threading.Tasks; -using Newtonsoft.Json; -using ServiceConnect.Interfaces; -using System.Reflection; - -namespace ServiceConnect.Core -{ - public class RequestConfiguration : IRequestConfiguration - { - private readonly Guid _requestMessageId; - private Task _task; - private Action _action; - public Guid RequestMessageId - { - get { return _requestMessageId; } - } - - public int EndpointsCount { get; set; } - public int ProcessedCount { get; set; } - - public RequestConfiguration(Guid requestMessageId) - { - _requestMessageId = requestMessageId; - } - - public Task SetHandler(Action handler) - { - _task = new Task(() => {}); - _action = handler; - - return _task; - } - - public void ProcessMessage(string message, Type typeObject) - { - var messageObject = JsonConvert.DeserializeObject(message, typeObject); - - ProcessedCount++; - - _action(messageObject); - - if (EndpointsCount == ProcessedCount) - { - _task.Start(); - } - } - } -} diff --git a/src/ServiceConnect.Core/RoutingKey.cs b/src/ServiceConnect.Core/RoutingKey.cs deleted file mode 100644 index 6bc1fe24b..000000000 --- a/src/ServiceConnect.Core/RoutingKey.cs +++ /dev/null @@ -1,20 +0,0 @@ -using System; - -namespace ServiceConnect.Core -{ - [AttributeUsage(AttributeTargets.All, AllowMultiple = true)] - public class RoutingKey : System.Attribute - { - string value; - - public RoutingKey(string value) - { - this.value = value; - } - - public string GetValue() - { - return value; - } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Core/SendMessagePipeline.cs b/src/ServiceConnect.Core/SendMessagePipeline.cs deleted file mode 100644 index 31b9bb4f8..000000000 --- a/src/ServiceConnect.Core/SendMessagePipeline.cs +++ /dev/null @@ -1,64 +0,0 @@ -using ServiceConnect.Interfaces; -using System; -using System.Collections.Generic; - -namespace ServiceConnect.Core -{ - public class SendMessagePipeline : ISendMessagePipeline - { - private readonly IConfiguration _configuration; - private readonly IProducer _producer; - private readonly IBusContainer _container; - - public SendMessagePipeline(IConfiguration configuration) - { - _configuration = configuration; - _producer = _configuration.GetProducer(); - _container = configuration.GetContainer(); - } - - public void ExecuteSendMessagePipeline(Type typeObject, byte[] messageBytes, Dictionary headers = null, string endPoint = null) - { - ExecuteMessagePipeline(SendMessage, typeObject, messageBytes, headers, endPoint); - } - - public void ExecutePublishMessagePipeline(Type typeObject, byte[] messageBytes, Dictionary headers = null, string endPoint = null) - { - ExecuteMessagePipeline(PublishMessage, typeObject, messageBytes, headers, endPoint); - } - - private void ExecuteMessagePipeline(SendMessageDelegate del, Type typeObject, byte[] messageBytes, Dictionary headers = null, string endPoint = null) - { - SendMessageDelegate current = del; - for (int i = _configuration.SendMessageMiddleware.Count; i > 0; i--) - { - ISendMessageMiddleware middleware = (ISendMessageMiddleware)_container.GetInstance(_configuration.SendMessageMiddleware[i - 1]); - middleware.Next = current; - current = middleware.Process; - } - current(typeObject, messageBytes, headers, endPoint); - } - - private void SendMessage(Type typeObject, byte[] messageBytes, Dictionary headers = null, string endPoint = null) - { - if (endPoint == null) - { - _producer.Send(typeObject, messageBytes, headers); - } - else - { - _producer.Send(endPoint, typeObject, messageBytes, headers); - } - } - - private void PublishMessage(Type typeObject, byte[] messageBytes, Dictionary headers = null, string endPoint = null) - { - _producer.Publish(typeObject, messageBytes, headers); - } - - public void Dispose() - { - _producer.Dispose(); - } - } -} diff --git a/src/ServiceConnect.Core/ServiceConnect.Core.csproj b/src/ServiceConnect.Core/ServiceConnect.Core.csproj deleted file mode 100644 index 5d5b3c917..000000000 --- a/src/ServiceConnect.Core/ServiceConnect.Core.csproj +++ /dev/null @@ -1,28 +0,0 @@ - - - - net6.0 - ServiceConnect.Core - ServiceConnect.Core - false - false - false - 5.0.0 - - - - - - - - - - - - - - - - - - diff --git a/src/ServiceConnect.Core/StreamProcessor.cs b/src/ServiceConnect.Core/StreamProcessor.cs deleted file mode 100644 index 5523f12a8..000000000 --- a/src/ServiceConnect.Core/StreamProcessor.cs +++ /dev/null @@ -1,45 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System.Collections.Generic; -using System.Linq; -using System.Threading.Tasks; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Core -{ - public class StreamProcessor : IStreamProcessor - { - private readonly IBusContainer _container; - - public StreamProcessor(IBusContainer container) - { - _container = container; - } - - public void ProcessMessage(T message, IMessageBusReadStream stream) where T : Message - { - IList handlerReferences = _container.GetHandlerTypes(typeof(IStreamHandler)).ToList(); - foreach (HandlerReference handlerReference in handlerReferences) - { - var handler = (IStreamHandler)_container.GetInstance(handlerReference.HandlerType); - handler.Stream = stream; - new Task(() => handler.Execute(message)).Start(); - } - stream.HandlerCount = handlerReferences.Count(); - } - } -} diff --git a/src/ServiceConnect.Core/StreamResponseMessage.cs b/src/ServiceConnect.Core/StreamResponseMessage.cs deleted file mode 100644 index 7c4221a21..000000000 --- a/src/ServiceConnect.Core/StreamResponseMessage.cs +++ /dev/null @@ -1,29 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Core -{ - public class StreamResponseMessage : Message - { - public StreamResponseMessage(Guid correlationId) - : base(correlationId) - { - } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Core/TransportSettings.cs b/src/ServiceConnect.Core/TransportSettings.cs deleted file mode 100644 index a61b46f1e..000000000 --- a/src/ServiceConnect.Core/TransportSettings.cs +++ /dev/null @@ -1,36 +0,0 @@ -using System.Collections.Generic; -using System.Net.Security; -using System.Security.Authentication; -using System.Security.Cryptography.X509Certificates; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Core -{ - public class TransportSettings : ITransportSettings - { - public int RetryDelay { get; set; } - public int MaxRetries { get; set; } - public string Host { get; set; } - public string Username { get; set; } - public string Password { get; set; } - public string QueueName { get; set; } - public bool PurgeQueueOnStartup { get; set; } - public string MachineName { get; set; } - public string ErrorQueueName { get; set; } - public bool AuditingEnabled { get; set; } - public string AuditQueueName { get; set; } - public bool DisableErrors { get; set; } - public string HeartbeatQueueName { get; set; } - public IDictionary ClientSettings { get; set; } - public bool SslEnabled { get; set; } - public SslPolicyErrors AcceptablePolicyErrors { get; set; } - public string ServerName { get; set; } - public string CertPath { get; set; } - public string CertPassphrase { get; set; } - public X509CertificateCollection Certs { get; set; } - public SslProtocols Version { get; set; } - public LocalCertificateSelectionCallback CertificateSelectionCallback { get; set; } - public RemoteCertificateValidationCallback CertificateValidationCallback { get; set; } - public string VirtualHost { get; set; } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.EndToEndTests/Aggregators/AggregatorExceptionTests.cs b/src/ServiceConnect.EndToEndTests/Aggregators/AggregatorExceptionTests.cs new file mode 100644 index 000000000..0a9f02664 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Aggregators/AggregatorExceptionTests.cs @@ -0,0 +1,120 @@ +using System.Text; +using Microsoft.Extensions.DependencyInjection; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Helpers; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(MessagingCollection))] +public class AggregatorExceptionTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task Aggregator_ExecuteThrows_MessageSentToErrorQueue() + { + // Arrange + var queueName = _fixture.GetUniqueQueueName("agg-exception"); + var errorQueueName = _fixture.GetUniqueQueueName("agg-exception-eq"); + const int maxRetries = 1; + const int retryDelay = 1000; + + var handlerRefs = new List + { + new() + { + HandlerType = typeof(ThrowingAggregator), + MessageType = typeof(TestMessage) + } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>(handlerRefs); + services.AddTransient, ThrowingAggregator>(); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.MaxRetries = maxRetries; + t.RetryDelay = retryDelay; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => + { + q.QueueName = queueName; + q.ErrorQueueName = errorQueueName; + }); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + builder.UseInMemoryPersistence(); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + await bus.StartConsumingAsync(); + + + try + { + // Act: send one message — BatchSize=1 triggers Execute immediately + var msg = new TestMessage(Guid.NewGuid()) { Content = "agg-exception-trigger" }; + await bus.PublishAsync(msg); + + // Poll error queue: wait long enough for retries + buffer + var factory = new ConnectionFactory + { + HostName = _fixture.RabbitMqHostname, + Port = _fixture.RabbitMqPort, + UserName = _fixture.RabbitMqUsername, + Password = _fixture.RabbitMqPassword + }; + await using var conn = await factory.CreateConnectionAsync(); + await using var channel = await conn.CreateChannelAsync(); + + var errorMsg = await TestPolling.WaitForAsync( + async () => await channel.BasicGetAsync(errorQueueName, autoAck: true), + timeout: TimeSpan.FromSeconds(30)); + + // Assert: message landed in error queue + Assert.NotNull(errorMsg); + + // Verify Exception header contains the thrown message + var headers = errorMsg.BasicProperties.Headers!; + Assert.True(headers.ContainsKey("Exception")); + var exceptionJson = Encoding.UTF8.GetString((byte[])headers["Exception"]!); + Assert.Contains("Aggregator Execute failed", exceptionJson); + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + } +} + +file class ThrowingAggregator : Aggregator +{ + public override int BatchSize() => 1; + public override TimeSpan Timeout() => TimeSpan.FromSeconds(30); + public override Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default) => + Task.FromException(new InvalidOperationException("Aggregator Execute failed")); +} diff --git a/src/ServiceConnect.EndToEndTests/Aggregators/AggregatorFlushRaceE2ETests.cs b/src/ServiceConnect.EndToEndTests/Aggregators/AggregatorFlushRaceE2ETests.cs new file mode 100644 index 000000000..5a1400856 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Aggregators/AggregatorFlushRaceE2ETests.cs @@ -0,0 +1,173 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Helpers; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; +using ServiceConnect.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +/// +/// End-to-end guard that inserts arriving while an aggregator flush is in progress +/// survive the flush. Messages that land between snapshot capture and flush completion +/// must remain in the buffer for the next flush rather than being wiped with the +/// ones the first Execute callback actually saw. +/// +[Collection(nameof(MessagingCollection))] +public class AggregatorFlushRaceE2ETests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task Aggregator_ConcurrentInsertsWhileFlushingBlock_BothBatchesDelivered() + { + // Arrange: first flush completion signal + // Use wrapper types so DI can distinguish the two TCS instances (DI resolves a + // bare TaskCompletionSource> to whichever registration won last). + var firstFlushSignal = new FirstFlushSignal(); + var secondFlushSignal = new SecondFlushSignal(); + // Gate that blocks the first Execute call while we push the second batch + var gate = new FlushGate(); + + var queueName = _fixture.GetUniqueQueueName("agg-flush-race"); + + var handlerRefs = new List + { + new() + { + HandlerType = typeof(FlushRaceAggregator), + MessageType = typeof(TestMessage) + } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>(handlerRefs); + services.AddSingleton(firstFlushSignal); + services.AddSingleton(secondFlushSignal); + services.AddSingleton(gate); + services.AddTransient, FlushRaceAggregator>(); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + builder.UseInMemoryPersistence(); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + await bus.StartConsumingAsync(); + + try + { + // Act: publish 3 messages to trigger a flush (BatchSize = 3) + for (var i = 0; i < 3; i++) + { + await bus.SendAsync(new TestMessage(Guid.NewGuid()) { Content = $"first-{i}" }, + new SendOptions { EndPoint = queueName }); + } + + // Wait until the handler is blocking inside Execute + using var cts30 = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + cts30.Token.Register(() => firstFlushSignal.Tcs.TrySetCanceled()); + var firstBatch = await firstFlushSignal.Tcs.Task; + Assert.Equal(3, firstBatch.Count); + + // While handler is blocked, publish 3 more messages. RabbitMQ delivers them + // to the consumer only after the first handler completes (channel prefetch + // serializes delivery). Using 3 guarantees a batch-size flush will fire + // once the gate releases and the queued messages are processed. + for (var i = 0; i < 3; i++) + { + await bus.SendAsync(new TestMessage(Guid.NewGuid()) { Content = $"second-{i}" }, + new SendOptions { EndPoint = queueName }); + } + + // Release the handler. The first flush completes and deletes only the + // three snapshot ids it saw (not every document in the buffer), so the + // three late messages remain and then trigger the second batch flush. + gate.Mre.Set(); + + // Assert: second Execute fires and contains the late messages (not silently wiped). + cts30.Token.Register(() => secondFlushSignal.Tcs.TrySetCanceled()); + var secondBatch = await secondFlushSignal.Tcs.Task; + var contents = secondBatch.Select(m => m.Content).ToHashSet(); + Assert.Equal(3, secondBatch.Count); + Assert.Contains("second-0", contents); + Assert.Contains("second-1", contents); + Assert.Contains("second-2", contents); + } + finally + { + gate.Mre.Set(); // safety in case test aborts before release + await bus.DisposeAsync(); + if (provider is IAsyncDisposable ap) + { + await ap.DisposeAsync(); + } + } + } +} + +file sealed class FirstFlushSignal +{ + public TaskCompletionSource> Tcs { get; } = + new(TaskCreationOptions.RunContinuationsAsynchronously); +} + +file sealed class SecondFlushSignal +{ + public TaskCompletionSource> Tcs { get; } = + new(TaskCreationOptions.RunContinuationsAsynchronously); +} + +file sealed class FlushGate +{ + public ManualResetEventSlim Mre { get; } = new(false); + // The counter has to live on a singleton because ServiceConnect instantiates the + // aggregator per-dispatch — a field on FlushRaceAggregator would reset on the second + // invocation and we would route both flushes into the "first" branch. + private int _invokeCount; + public int Increment() => Interlocked.Increment(ref _invokeCount); +} + +file class FlushRaceAggregator(FirstFlushSignal first, SecondFlushSignal second, FlushGate gate) : Aggregator +{ + private readonly FirstFlushSignal _first = first; + private readonly SecondFlushSignal _second = second; + private readonly FlushGate _gate = gate; + + public override int BatchSize() => 3; + public override TimeSpan Timeout() => TimeSpan.FromSeconds(60); + + public override Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default) + { + var count = _gate.Increment(); + if (count == 1) + { + _first.Tcs.TrySetResult(messages); + _gate.Mre.Wait(TimeSpan.FromSeconds(10)); + } + else + { + _second.Tcs.TrySetResult(messages); + } + return Task.CompletedTask; + } +} diff --git a/src/ServiceConnect.EndToEndTests/Aggregators/AggregatorMongoDbTests.cs b/src/ServiceConnect.EndToEndTests/Aggregators/AggregatorMongoDbTests.cs new file mode 100644 index 000000000..d32587c31 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Aggregators/AggregatorMongoDbTests.cs @@ -0,0 +1,107 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(PersistenceCollection))] +public class AggregatorMongoDbTests(PersistenceFixture fixture) +{ + private readonly PersistenceFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task Aggregator_BatchComplete_ExecutesWithAllMessages_MongoDb() + { + // Arrange + var executed = new TaskCompletionSource>(TaskCreationOptions.RunContinuationsAsynchronously); + var queueName = _fixture.GetUniqueQueueName("agg-mongo"); + + var handlerRefs = new List + { + new() + { + HandlerType = typeof(MongoBatchAggregator), + MessageType = typeof(TestMessage) + } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>(handlerRefs); + services.AddSingleton(executed); + services.AddTransient, MongoBatchAggregator>(); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + builder.UseMongoDbPersistence(opts => + { + opts.ConnectionString = _fixture.MongoDbConnectionString; + opts.DatabaseName = _fixture.GetUniqueDatabaseName("agg"); + }); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + await bus.StartConsumingAsync(); + + + try + { + // Act: send 3 messages (batch size) + for (var i = 0; i < 3; i++) + { + var msg = new TestMessage(Guid.NewGuid()) { Content = $"mongo-batch-{i}" }; + await bus.SendAsync(msg, new SendOptions { EndPoint = queueName }); + } + + // Wait for Execute to be called + var cts = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + cts.Token.Register(() => executed.TrySetCanceled()); + var result = await executed.Task; + + // Assert + Assert.Equal(3, result.Count); + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + } +} + +file class MongoBatchAggregator(TaskCompletionSource> tcs) : Aggregator +{ + private readonly TaskCompletionSource> _tcs = tcs; + + public override int BatchSize() => 3; + public override TimeSpan Timeout() => TimeSpan.FromSeconds(30); + public override Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default) + { + _tcs.TrySetResult(messages); + return Task.CompletedTask; + } +} diff --git a/src/ServiceConnect.EndToEndTests/Aggregators/AggregatorTests.cs b/src/ServiceConnect.EndToEndTests/Aggregators/AggregatorTests.cs new file mode 100644 index 000000000..cf2ccd798 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Aggregators/AggregatorTests.cs @@ -0,0 +1,189 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; +using ServiceConnect.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(MessagingCollection))] +public class AggregatorTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task Aggregator_BatchComplete_ExecutesWithAllMessages() + { + // Arrange + var executed = new TaskCompletionSource>(TaskCreationOptions.RunContinuationsAsynchronously); + var queueName = _fixture.GetUniqueQueueName("agg-batch"); + + var handlerRefs = new List + { + new() + { + HandlerType = typeof(BatchAggregator), + MessageType = typeof(TestMessage) + } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>(handlerRefs); + services.AddSingleton(executed); + services.AddTransient, BatchAggregator>(); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + builder.UseInMemoryPersistence(); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + await bus.StartConsumingAsync(); + + + try + { + // Act: send 3 messages (batch size) + for (var i = 0; i < 3; i++) + { + var msg = new TestMessage(Guid.NewGuid()) { Content = $"batch-{i}" }; + await bus.SendAsync(msg, new SendOptions { EndPoint = queueName }); + } + + // Wait for Execute to be called + var cts = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + cts.Token.Register(() => executed.TrySetCanceled()); + var result = await executed.Task; + + // Assert + Assert.Equal(3, result.Count); + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + } + + [Fact] + [Trait("Category", "Docker")] + public async Task Aggregator_Timeout_FlushesPartialBatch() + { + // Arrange + var executed = new TaskCompletionSource>(TaskCreationOptions.RunContinuationsAsynchronously); + var queueName = _fixture.GetUniqueQueueName("agg-timeout"); + + var handlerRefs = new List + { + new() + { + HandlerType = typeof(TimeoutAggregator), + MessageType = typeof(TestMessage) + } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>(handlerRefs); + services.AddSingleton(executed); + services.AddTransient, TimeoutAggregator>(); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + builder.UseInMemoryPersistence(); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + await bus.StartConsumingAsync(); + + + try + { + // Act: send only 2 messages (below batch size of 10) + for (var i = 0; i < 2; i++) + { + var msg = new TestMessage(Guid.NewGuid()) { Content = $"timeout-{i}" }; + await bus.SendAsync(msg, new SendOptions { EndPoint = queueName }); + } + + // Wait for Execute to be called (should fire after ~2s timeout) + var cts = new CancellationTokenSource(TimeSpan.FromSeconds(10)); + cts.Token.Register(() => executed.TrySetCanceled()); + var result = await executed.Task; + + // Assert + Assert.Equal(2, result.Count); + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + } +} + +file class BatchAggregator(TaskCompletionSource> tcs) : Aggregator +{ + private readonly TaskCompletionSource> _tcs = tcs; + + public override int BatchSize() => 3; + public override TimeSpan Timeout() => TimeSpan.FromSeconds(30); + public override Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default) + { + _tcs.TrySetResult(messages); + return Task.CompletedTask; + } +} + +file class TimeoutAggregator(TaskCompletionSource> tcs) : Aggregator +{ + private readonly TaskCompletionSource> _tcs = tcs; + + public override int BatchSize() => 10; + public override TimeSpan Timeout() => TimeSpan.FromSeconds(2); + public override Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default) + { + _tcs.TrySetResult(messages); + return Task.CompletedTask; + } +} diff --git a/src/ServiceConnect.EndToEndTests/Aggregators/AggregatorUnresolvedTypeE2ETests.cs b/src/ServiceConnect.EndToEndTests/Aggregators/AggregatorUnresolvedTypeE2ETests.cs new file mode 100644 index 000000000..7dec588fd --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Aggregators/AggregatorUnresolvedTypeE2ETests.cs @@ -0,0 +1,149 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging.Abstractions; +using MongoDB.Bson; +using MongoDB.Driver; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Helpers; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; +using ServiceConnect.Persistence.MongoDb; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +/// +/// End-to-end guard that an unresolvable document in the aggregator Mongo collection +/// does not block a flush of its resolvable siblings and is not deleted when the +/// flush completes, so a later release that adds the missing type can still process it. +/// +[Collection(nameof(PersistenceCollection))] +public class AggregatorUnresolvedTypeE2ETests(PersistenceFixture fixture) +{ + private readonly PersistenceFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task Aggregator_UnresolvableDocumentInCollection_ResolvableBatchDeliveredAndUnresolvedSurvives() + { + // Arrange + var executed = new TaskCompletionSource>(TaskCreationOptions.RunContinuationsAsynchronously); + var queueName = _fixture.GetUniqueQueueName("agg-unresolved"); + var dbName = _fixture.GetUniqueDatabaseName("agg-unresolved"); + const string collectionName = "Aggregator"; + + // Directly inject a malformed document (unknown type) into the Mongo collection + // so GetSnapshotAsync encounters it. + var mongoOptions = new MongoDbPersistenceOptions + { + ConnectionString = _fixture.MongoDbConnectionString, + DatabaseName = dbName + }; + var mongoClient = MongoClientFactory.Create(mongoOptions); + var db = mongoClient.GetDatabase(dbName); + var rawCollection = db.GetCollection(collectionName); + + // AggregatorDocument shape: Id, Name, DataBson, DataTypeName, Version + var malformedDoc = new BsonDocument + { + { "_id", new BsonBinaryData(Guid.NewGuid(), GuidRepresentation.Standard) }, + { "Name", "UnresolvedAggregator" }, + { "DataBson", new BsonDocument { { "CorrelationId", new BsonBinaryData(Guid.NewGuid(), GuidRepresentation.Standard) } } }, + { "DataTypeName", "ServiceConnect.DoesNotExist.PhantomMessage" }, + { "Version", 1 } + }; + await rawCollection.InsertOneAsync(malformedDoc); + + var handlerRefs = new List + { + new() + { + HandlerType = typeof(UnresolvedBatchAggregator), + MessageType = typeof(TestMessage) + } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>(handlerRefs); + services.AddSingleton(executed); + services.AddTransient, UnresolvedBatchAggregator>(); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + builder.UseMongoDbPersistence(opts => + { + opts.ConnectionString = _fixture.MongoDbConnectionString; + opts.DatabaseName = dbName; + }); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + await bus.StartConsumingAsync(); + + try + { + // Act: publish 3 messages to an aggregator named "UnresolvedAggregator" to trigger flush + for (var i = 0; i < 3; i++) + { + await bus.SendAsync(new TestMessage(Guid.NewGuid()) { Content = $"resolvable-{i}" }, + new SendOptions { EndPoint = queueName }); + } + + // Assert: the resolvable messages are delivered to Execute + var cts = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + cts.Token.Register(() => executed.TrySetCanceled()); + var result = await executed.Task; + Assert.Equal(3, result.Count); + + // Assert: the malformed document is still in the collection (not deleted by flush) + await TestPolling.WaitUntilAsync(async () => + { + var filter = Builders.Filter.Eq("DataTypeName", "ServiceConnect.DoesNotExist.PhantomMessage"); + var count = await rawCollection.CountDocumentsAsync(filter); + return count == 1; + }, TimeSpan.FromSeconds(10)); + + var phantomFilter = Builders.Filter.Eq("DataTypeName", "ServiceConnect.DoesNotExist.PhantomMessage"); + var survivingCount = await rawCollection.CountDocumentsAsync(phantomFilter); + Assert.Equal(1, survivingCount); + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable ap) + { + await ap.DisposeAsync(); + } + } + } +} + +file class UnresolvedBatchAggregator(TaskCompletionSource> tcs) : Aggregator +{ + private readonly TaskCompletionSource> _tcs = tcs; + + public override int BatchSize() => 3; + public override TimeSpan Timeout() => TimeSpan.FromSeconds(30); + public override Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default) + { + _tcs.TrySetResult(messages); + return Task.CompletedTask; + } +} diff --git a/src/ServiceConnect.EndToEndTests/Aggregators/ScatterGatherPartialTests.cs b/src/ServiceConnect.EndToEndTests/Aggregators/ScatterGatherPartialTests.cs new file mode 100644 index 000000000..c67575a0e --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Aggregators/ScatterGatherPartialTests.cs @@ -0,0 +1,179 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(RequestReplyCollection))] +public class ScatterGatherPartialTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task PublishRequestAsync_OneRespondsOneSilent_ReturnsPartialResultsAtTimeout() + { + // Arrange + var responderQueue = _fixture.GetUniqueQueueName("scatter-partial-responder"); + var silentQueue = _fixture.GetUniqueQueueName("scatter-partial-silent"); + var requesterQueue = _fixture.GetUniqueQueueName("scatter-partial-requester"); + + // --- Responder bus setup (replies to requests) --- + var responderHandlerReferences = new List + { + new() { + HandlerType = typeof(PartialScatterReplyHandler), + MessageType = typeof(TestRequest) + } + }; + + var responderServices = new ServiceCollection(); + responderServices.AddLogging(); + responderServices.AddSingleton>(responderHandlerReferences); + responderServices.AddTransient>(_ => new PartialScatterReplyHandler("Resp1")); + + responderServices.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = responderQueue); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var responderProvider = responderServices.BuildServiceProvider(); + var responderBus = responderProvider.GetRequiredService(); + await responderBus.StartConsumingAsync(); + + // --- Silent consumer bus setup (consumes but never replies) --- + var silentHandlerReferences = new List + { + new() { + HandlerType = typeof(CallbackHandler), + MessageType = typeof(TestRequest) + } + }; + + var silentServices = new ServiceCollection(); + silentServices.AddLogging(); + silentServices.AddSingleton>(silentHandlerReferences); + silentServices.AddTransient>(_ => new CallbackHandler(_ => { })); + + silentServices.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = silentQueue); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var silentProvider = silentServices.BuildServiceProvider(); + var silentBus = silentProvider.GetRequiredService(); + await silentBus.StartConsumingAsync(); + + // --- Requester bus setup --- + var requesterHandlerReferences = new List(); + + var requesterServices = new ServiceCollection(); + requesterServices.AddLogging(); + requesterServices.AddSingleton>(requesterHandlerReferences); + + requesterServices.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = requesterQueue); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var requesterProvider = requesterServices.BuildServiceProvider(); + var requesterBus = requesterProvider.GetRequiredService(); + await requesterBus.StartConsumingAsync(); + + // Give consumers time to set up + + + try + { + // Act — broadcast to all subscribers; only the active responder replies; + // the silent consumer receives the message but never calls ReplyAsync. + // No ExpectedReplyCount is set so the call always runs to the full Timeout + // and returns every reply received — in this case just the one. + var request = new TestRequest(Guid.NewGuid()) { Question = "partial-question" }; + var replies = new List(); + await requesterBus.PublishRequestAsync( + request, + reply => { lock (replies) { replies.Add(reply); } }, + new RequestOptions + { + Timeout = 5000 + }); + + // Assert — only one reply received before timeout + Assert.NotNull(replies); + Assert.Single(replies); + Assert.Equal("Resp1: partial-question", replies[0].Answer); + } + finally + { + await responderBus.DisposeAsync(); + if (responderProvider is IAsyncDisposable asyncResponderProvider) + { + await asyncResponderProvider.DisposeAsync(); + } + + await silentBus.DisposeAsync(); + if (silentProvider is IAsyncDisposable asyncSilentProvider) + { + await asyncSilentProvider.DisposeAsync(); + } + + await requesterBus.DisposeAsync(); + if (requesterProvider is IAsyncDisposable asyncRequesterProvider) + { + await asyncRequesterProvider.DisposeAsync(); + } + } + } +} + +file class PartialScatterReplyHandler(string prefix) : IMessageHandler +{ + private readonly string _prefix = prefix; + + public async Task HandleAsync(TestRequest message, IConsumeContext context, CancellationToken cancellationToken = default) + { + await context.ReplyAsync(new TestResponse(Guid.NewGuid()) + { + Answer = $"{_prefix}: {message.Question}" + }); + } +} diff --git a/src/ServiceConnect.EndToEndTests/Aggregators/ScatterGatherTests.cs b/src/ServiceConnect.EndToEndTests/Aggregators/ScatterGatherTests.cs new file mode 100644 index 000000000..acfe013fe --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Aggregators/ScatterGatherTests.cs @@ -0,0 +1,180 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(RequestReplyCollection))] +public class ScatterGatherTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task PublishRequestAsync_TwoResponders_BothRepliesReceived() + { + // Arrange + var responder1Queue = _fixture.GetUniqueQueueName("scatter-responder1"); + var responder2Queue = _fixture.GetUniqueQueueName("scatter-responder2"); + var requesterQueue = _fixture.GetUniqueQueueName("scatter-requester"); + + // --- Responder 1 bus setup --- + var responder1HandlerReferences = new List + { + new() { + HandlerType = typeof(ScatterReplyHandler), + MessageType = typeof(TestRequest) + } + }; + + var responder1Services = new ServiceCollection(); + responder1Services.AddLogging(); + responder1Services.AddSingleton>(responder1HandlerReferences); + responder1Services.AddTransient>(_ => new ScatterReplyHandler("Resp1")); + + responder1Services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = responder1Queue); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var responder1Provider = responder1Services.BuildServiceProvider(); + var responder1Bus = responder1Provider.GetRequiredService(); + await responder1Bus.StartConsumingAsync(); + + // --- Responder 2 bus setup --- + var responder2HandlerReferences = new List + { + new() { + HandlerType = typeof(ScatterReplyHandler), + MessageType = typeof(TestRequest) + } + }; + + var responder2Services = new ServiceCollection(); + responder2Services.AddLogging(); + responder2Services.AddSingleton>(responder2HandlerReferences); + responder2Services.AddTransient>(_ => new ScatterReplyHandler("Resp2")); + + responder2Services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = responder2Queue); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var responder2Provider = responder2Services.BuildServiceProvider(); + var responder2Bus = responder2Provider.GetRequiredService(); + await responder2Bus.StartConsumingAsync(); + + // --- Requester bus setup --- + var requesterHandlerReferences = new List(); + + var requesterServices = new ServiceCollection(); + requesterServices.AddLogging(); + requesterServices.AddSingleton>(requesterHandlerReferences); + + requesterServices.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = requesterQueue); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var requesterProvider = requesterServices.BuildServiceProvider(); + var requesterBus = requesterProvider.GetRequiredService(); + await requesterBus.StartConsumingAsync(); + + // Give consumers time to set up + + + try + { + // Act — broadcast to all subscribers; both responders will see the request and reply + var request = new TestRequest(Guid.NewGuid()) { Question = "scatter-question" }; + var replies = new List(); + await requesterBus.PublishRequestAsync( + request, + reply => { lock (replies) { replies.Add(reply); } }, + new RequestOptions + { + ExpectedReplyCount = 2, + Timeout = 30000 + }); + + // Assert + Assert.NotNull(replies); + Assert.Equal(2, replies.Count); + + var answers = replies.Select(r => r.Answer).ToList(); + Assert.Contains(answers, a => a == "Resp1: scatter-question"); + Assert.Contains(answers, a => a == "Resp2: scatter-question"); + } + finally + { + await responder1Bus.DisposeAsync(); + if (responder1Provider is IAsyncDisposable asyncResponder1Provider) + { + await asyncResponder1Provider.DisposeAsync(); + } + + await responder2Bus.DisposeAsync(); + if (responder2Provider is IAsyncDisposable asyncResponder2Provider) + { + await asyncResponder2Provider.DisposeAsync(); + } + + await requesterBus.DisposeAsync(); + if (requesterProvider is IAsyncDisposable asyncRequesterProvider) + { + await asyncRequesterProvider.DisposeAsync(); + } + } + } +} + +file class ScatterReplyHandler(string prefix) : IMessageHandler +{ + private readonly string _prefix = prefix; + + public async Task HandleAsync(TestRequest message, IConsumeContext context, CancellationToken cancellationToken = default) + { + await context.ReplyAsync(new TestResponse(Guid.NewGuid()) + { + Answer = $"{_prefix}: {message.Question}" + }); + } +} diff --git a/src/ServiceConnect.EndToEndTests/Bus/AutoStartConsumingE2ETests.cs b/src/ServiceConnect.EndToEndTests/Bus/AutoStartConsumingE2ETests.cs new file mode 100644 index 000000000..fb69849a9 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Bus/AutoStartConsumingE2ETests.cs @@ -0,0 +1,174 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Hosting; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(MessagingCollection))] +public class AutoStartConsumingE2ETests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task AutoStartConsuming_True_HandlerReceivesWithoutExplicitStart() + { + var queueName = _fixture.GetUniqueQueueName("autostart"); + var receivedTcs = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + + var handlerReferences = new List + { + new() { + HandlerType = typeof(CallbackHandler), + MessageType = typeof(TestMessage) + } + }; + + var host = Host.CreateDefaultBuilder() + .ConfigureServices(services => + { + services.AddLogging(); + + // Register handler references before AddServiceConnect so TryAddSingleton keeps this list + services.AddSingleton>(handlerReferences); + + // Register the handler, backed by our TCS callback + services.AddTransient>(_ => + new CallbackHandler(msg => receivedTcs.TrySetResult(msg))); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureBus(b => + { + b.ScanForMessageHandlers = false; + b.AutoStartConsuming = true; + }); + }); + }) + .Build(); + + try + { + // BusHostedService.StartAsync triggers bus.StartConsumingAsync() — no manual call + await host.StartAsync(); + + // Give the hosted service time to complete StartConsumingAsync + await Task.Delay(500); + + // Publish via the bus from the host's service provider + var bus = host.Services.GetRequiredService(); + var correlationId = Guid.NewGuid(); + var sent = new TestMessage(correlationId) { Content = "auto-start consuming" }; + await bus.PublishAsync(sent); + + // Assert: wait up to 30 seconds for the handler to be called + var cts = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + cts.Token.Register(() => receivedTcs.TrySetCanceled()); + + var received = await receivedTcs.Task; + + Assert.Equal("auto-start consuming", received.Content); + Assert.Equal(correlationId, received.CorrelationId); + } + finally + { + await host.StopAsync(); + host.Dispose(); + } + } + + [Fact] + [Trait("Category", "Docker")] + public async Task AutoStartConsuming_False_HandlerDoesNotReceiveUntilExplicitStart() + { + var queueName = _fixture.GetUniqueQueueName("autostart-off"); + var receivedTcs = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + + var handlerReferences = new List + { + new() { + HandlerType = typeof(CallbackHandler), + MessageType = typeof(TestMessage) + } + }; + + var host = Host.CreateDefaultBuilder() + .ConfigureServices(services => + { + services.AddLogging(); + services.AddSingleton>(handlerReferences); + services.AddTransient>(_ => + new CallbackHandler(msg => receivedTcs.TrySetResult(msg))); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureBus(b => + { + b.ScanForMessageHandlers = false; + b.AutoStartConsuming = false; + }); + }); + }) + .Build(); + + try + { + await host.StartAsync(); + + var bus = host.Services.GetRequiredService(); + Assert.False(bus.IsConsuming); + + // Verify no consumption occurs during the deferred window. + var negativeWait = Task.Delay(TimeSpan.FromSeconds(1)); + var completed = await Task.WhenAny(receivedTcs.Task, negativeWait); + Assert.Same(negativeWait, completed); + Assert.False(receivedTcs.Task.IsCompleted); + + await bus.StartConsumingAsync(); + Assert.True(bus.IsConsuming); + + var correlationId = Guid.NewGuid(); + var sent = new TestMessage(correlationId) { Content = "deferred-consume" }; + await bus.PublishAsync(sent); + + var cts = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + cts.Token.Register(() => receivedTcs.TrySetCanceled()); + var received = await receivedTcs.Task; + + Assert.Equal("deferred-consume", received.Content); + Assert.Equal(correlationId, received.CorrelationId); + } + finally + { + await host.StopAsync(); + host.Dispose(); + } + } +} diff --git a/src/ServiceConnect.EndToEndTests/Bus/BusLifecycleTests.cs b/src/ServiceConnect.EndToEndTests/Bus/BusLifecycleTests.cs new file mode 100644 index 000000000..a71bc2cbe --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Bus/BusLifecycleTests.cs @@ -0,0 +1,109 @@ +using Microsoft.Extensions.DependencyInjection; +using Moq; +using ServiceConnect.DependencyInjection; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +public class BusLifecycleTests +{ + private IBus CreateBus(bool withConsumer = false) + { + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton(new Mock().Object); + + if (withConsumer) + { + var mockConsumer = new Mock(); + mockConsumer.Setup(x => x.StartConsumingAsync(It.IsAny(), It.IsAny>(), It.IsAny())) + .Returns(Task.CompletedTask); + services.AddSingleton(mockConsumer.Object); + } + + services.AddServiceConnect(b => + b.ConfigureBus(c => c.ScanForMessageHandlers = false) + .ConfigureQueues(q => q.QueueName = "bus-lifecycle-test")); + + var provider = services.BuildServiceProvider(); + return provider.GetRequiredService(); + } + + [Fact] + public async Task Bus_StartsAndStopsConsuming_WithConsumer() + { + var bus = CreateBus(withConsumer: true); + + Assert.False(bus.IsConsuming); + + await bus.StartConsumingAsync(); + Assert.True(bus.IsConsuming); + + await bus.StopConsumingAsync(); + Assert.False(bus.IsConsuming); + } + + [Fact] + public async Task Bus_StartConsuming_ThrowsWithoutConsumer() + { + var bus = CreateBus(withConsumer: false); + + Assert.False(bus.IsConsuming); + await Assert.ThrowsAsync(() => bus.StartConsumingAsync()); + } + + [Fact] + public async Task Bus_DisposesCleanly() + { + var bus = CreateBus(withConsumer: true); + + await bus.StartConsumingAsync(); + Assert.True(bus.IsConsuming); + + await bus.DisposeAsync(); + Assert.False(bus.IsConsuming); + } + + [Fact] + public async Task Bus_DoubleDispose_DoesNotThrow() + { + var bus = CreateBus(withConsumer: true); + + await bus.StartConsumingAsync(); + + var exception = await Record.ExceptionAsync(async () => + { + await bus.DisposeAsync(); + await bus.DisposeAsync(); + }); + + Assert.Null(exception); + } + + [Fact] + public async Task Bus_StopIsTerminal_StartAfterStopThrows() + { + // StopConsumingAsync is terminal. A subsequent StartConsumingAsync + // must throw with a clear message — the caller has to dispose and create a new Bus. + var bus = CreateBus(withConsumer: true); + + await bus.StartConsumingAsync(); + await bus.StopConsumingAsync(); + + var ex = await Assert.ThrowsAsync(() => bus.StartConsumingAsync()); + Assert.Contains("stopped", ex.Message, StringComparison.OrdinalIgnoreCase); + } + + [Fact] + public async Task Bus_DoubleStart_Throws() + { + // Start-while-already-consuming must throw, not silently replace state. + var bus = CreateBus(withConsumer: true); + + await bus.StartConsumingAsync(); + + var ex = await Assert.ThrowsAsync(() => bus.StartConsumingAsync()); + Assert.Contains("consuming", ex.Message, StringComparison.OrdinalIgnoreCase); + } +} diff --git a/src/ServiceConnect.EndToEndTests/Bus/CancellationE2ETests.cs b/src/ServiceConnect.EndToEndTests/Bus/CancellationE2ETests.cs new file mode 100644 index 000000000..ad77235bc --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Bus/CancellationE2ETests.cs @@ -0,0 +1,130 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(IsolatedCollection))] +public class CancellationE2ETests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + private ServiceProvider BuildBus(string queueName, out IBus bus) + { + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>([]); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => + { + q.QueueName = queueName; + q.AddQueueMapping(typeof(CancellationTestRequest), "cancellation-test-never-replied"); + }); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var provider = services.BuildServiceProvider(); + bus = provider.GetRequiredService(); + return provider; + } + + [Fact] + [Trait("Category", "Docker")] + public async Task StartConsumingAsync_WithPreCancelledToken_DoesNotHang() + { + // Arrange + var queueName = _fixture.GetUniqueQueueName("cancellation-start"); + await using var provider = BuildBus(queueName, out var bus); + + using var cts = new CancellationTokenSource(); + cts.Cancel(); + + try + { + // Act + Assert: pre-cancelled token must throw OCE quickly (no hang) + await Assert.ThrowsAnyAsync( + () => bus.StartConsumingAsync(cts.Token).WaitAsync(TimeSpan.FromSeconds(5))); + } + finally + { + await bus.DisposeAsync(); + } + } + + [Fact] + [Trait("Category", "Docker")] + public async Task SendRequestAsync_ExternalCancel_ThrowsOCE() + { + // Arrange — a requester bus that starts consuming (needed for reply routing), + // but there is no responder, so the request will never be answered. + var requesterQueue = _fixture.GetUniqueQueueName("cancellation-request"); + await using var provider = BuildBus(requesterQueue, out var bus); + await bus.StartConsumingAsync(); + + // Producer now publishes with mandatory:true so unrouted sends surface as + // PublishException. The request target ("cancellation-test-never-replied") must + // exist as a real queue for the test's "request fires, reply never arrives, CT + // wins the race" scenario — otherwise the send itself fails before cancellation + // gets a chance to race. The queue stays unconsumed so no reply is ever produced. + var factory = new global::RabbitMQ.Client.ConnectionFactory + { + HostName = _fixture.RabbitMqHostname, + Port = _fixture.RabbitMqPort, + UserName = _fixture.RabbitMqUsername, + Password = _fixture.RabbitMqPassword, + }; + await using (var conn = await factory.CreateConnectionAsync()) + await using (var ch = await conn.CreateChannelAsync()) + { + await ch.QueueDeclareAsync("cancellation-test-never-replied", durable: false, exclusive: false, autoDelete: true); + } + + using var cts = new CancellationTokenSource(); + + // Use a very long internal timeout so the CT races with the request, not the timeout + var options = new RequestOptions { Timeout = 5 * 60 * 1000 }; + + try + { + // Act: kick off the request then cancel externally after a short delay + var task = bus.SendRequestAsync( + new CancellationTestRequest(Guid.NewGuid()), + options, + cts.Token); + + cts.CancelAfter(200); + + // Assert: OCE must arrive within 5 seconds (no hang) + await Assert.ThrowsAnyAsync( + () => task.WaitAsync(TimeSpan.FromSeconds(5))); + } + finally + { + await bus.DisposeAsync(); + } + } +} + +public class CancellationTestRequest(Guid correlationId) : Message(correlationId) +{ +} + +public class CancellationTestReply(Guid correlationId) : Message(correlationId) +{ +} diff --git a/src/ServiceConnect.EndToEndTests/Bus/ConsumerCountE2ETests.cs b/src/ServiceConnect.EndToEndTests/Bus/ConsumerCountE2ETests.cs new file mode 100644 index 000000000..2211c719c --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Bus/ConsumerCountE2ETests.cs @@ -0,0 +1,113 @@ +using System.Collections.Concurrent; +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(MessagingCollection))] +public class ConsumerCountE2ETests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task ConsumerCount2_Sends10Messages_AllProcessed() + { + // Arrange + const int messageCount = 10; + var threadIds = new ConcurrentBag(); + var countdown = new CountdownEvent(messageCount); + var queueName = _fixture.GetUniqueQueueName("consumer-count"); + + var handlerState = new ConsumerCountHandlerState(threadIds, countdown); + + var handlerReferences = new List + { + new() + { + HandlerType = typeof(ConsumerCountHandler), + MessageType = typeof(TestMessage) + } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>(handlerReferences); + services.AddSingleton(handlerState); + services.AddTransient, ConsumerCountHandler>(); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureBus(b => + { + b.ScanForMessageHandlers = false; + b.ConsumerCount = 2; + }); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + await bus.StartConsumingAsync(); + + + try + { + // Act: publish 10 messages + for (int i = 0; i < messageCount; i++) + { + await bus.PublishAsync(new TestMessage(Guid.NewGuid()) { Content = $"msg-{i}" }); + } + + // Assert: all 10 messages processed within 30 seconds + var completed = countdown.Wait(TimeSpan.FromSeconds(30)); + + Assert.True(completed, $"Only {messageCount - countdown.CurrentCount} of {messageCount} messages were processed within the timeout."); + Assert.Equal(messageCount, threadIds.Count); + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + + countdown.Dispose(); + } + } +} + +file class ConsumerCountHandlerState(ConcurrentBag threadIds, CountdownEvent countdown) +{ + public readonly ConcurrentBag ThreadIds = threadIds; + public readonly CountdownEvent Countdown = countdown; +} + +file class ConsumerCountHandler(ConsumerCountHandlerState state) : IMessageHandler +{ + private readonly ConsumerCountHandlerState _state = state; + + public Task HandleAsync(TestMessage message, IConsumeContext context, CancellationToken cancellationToken = default) + { + _state.ThreadIds.Add(Thread.CurrentThread.ManagedThreadId); + _state.Countdown.Signal(); + return Task.CompletedTask; + } +} diff --git a/src/ServiceConnect.EndToEndTests/Bus/EmptyMessageTests.cs b/src/ServiceConnect.EndToEndTests/Bus/EmptyMessageTests.cs new file mode 100644 index 000000000..c42e56e60 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Bus/EmptyMessageTests.cs @@ -0,0 +1,87 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(MessagingCollection))] +public class EmptyMessageTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task Publish_EmptyContent_HandlerReceivesMessageWithDefaults() + { + // Arrange + var tcs = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var queueName = _fixture.GetUniqueQueueName("emptymsg"); + + var handlerReferences = new List + { + new() { + HandlerType = typeof(CallbackHandler), + MessageType = typeof(TestMessage) + } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + + services.AddSingleton>(handlerReferences); + + services.AddTransient>(_ => + new CallbackHandler(msg => tcs.TrySetResult(msg))); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + await bus.StartConsumingAsync(); + + + try + { + // Act — publish a TestMessage with no Content set (defaults to string.Empty) + var correlationId = Guid.NewGuid(); + var sent = new TestMessage(correlationId); // Content not set + await bus.PublishAsync(sent); + + // Assert + var cts = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + cts.Token.Register(() => tcs.TrySetCanceled()); + + var received = await tcs.Task; + + Assert.Equal(correlationId, received.CorrelationId); + Assert.Equal(string.Empty, received.Content); + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + } +} diff --git a/src/ServiceConnect.EndToEndTests/Bus/MultiEndpointSendTests.cs b/src/ServiceConnect.EndToEndTests/Bus/MultiEndpointSendTests.cs new file mode 100644 index 000000000..bf38910a4 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Bus/MultiEndpointSendTests.cs @@ -0,0 +1,170 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(MessagingCollection))] +public class MultiEndpointSendTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task SendAsync_MultipleEndpoints_AllReceiveMessage() + { + // Arrange + var queue1 = _fixture.GetUniqueQueueName("multi-endpoint-1"); + var queue2 = _fixture.GetUniqueQueueName("multi-endpoint-2"); + var senderQueue = _fixture.GetUniqueQueueName("multi-endpoint-sender"); + + var tcs1 = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var tcs2 = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + + // --- Consumer 1 bus setup --- + var consumer1HandlerReferences = new List + { + new() { + HandlerType = typeof(CallbackHandler), + MessageType = typeof(TestMessage) + } + }; + + var consumer1Services = new ServiceCollection(); + consumer1Services.AddLogging(); + consumer1Services.AddSingleton>(consumer1HandlerReferences); + consumer1Services.AddTransient>(_ => + new CallbackHandler(msg => tcs1.TrySetResult(msg))); + + consumer1Services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queue1); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var consumer1Provider = consumer1Services.BuildServiceProvider(); + var consumer1Bus = consumer1Provider.GetRequiredService(); + await consumer1Bus.StartConsumingAsync(); + + // --- Consumer 2 bus setup --- + var consumer2HandlerReferences = new List + { + new() { + HandlerType = typeof(CallbackHandler), + MessageType = typeof(TestMessage) + } + }; + + var consumer2Services = new ServiceCollection(); + consumer2Services.AddLogging(); + consumer2Services.AddSingleton>(consumer2HandlerReferences); + consumer2Services.AddTransient>(_ => + new CallbackHandler(msg => tcs2.TrySetResult(msg))); + + consumer2Services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queue2); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var consumer2Provider = consumer2Services.BuildServiceProvider(); + var consumer2Bus = consumer2Provider.GetRequiredService(); + await consumer2Bus.StartConsumingAsync(); + + // --- Sender bus setup (no handlers) --- + var senderServices = new ServiceCollection(); + senderServices.AddLogging(); + senderServices.AddSingleton>([]); + + senderServices.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = senderQueue); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var senderProvider = senderServices.BuildServiceProvider(); + var senderBus = senderProvider.GetRequiredService(); + + // Give consumers time to set up + + + try + { + // Act + var correlationId = Guid.NewGuid(); + var message = new TestMessage(correlationId) { Content = "multi-endpoint send" }; + await senderBus.SendToManyAsync(message, [queue1, queue2]); + + // Assert: wait up to 30 seconds for both handlers to be called + var cts = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + cts.Token.Register(() => + { + tcs1.TrySetCanceled(); + tcs2.TrySetCanceled(); + }); + + var received1 = await tcs1.Task; + var received2 = await tcs2.Task; + + Assert.Equal("multi-endpoint send", received1.Content); + Assert.Equal(correlationId, received1.CorrelationId); + + Assert.Equal("multi-endpoint send", received2.Content); + Assert.Equal(correlationId, received2.CorrelationId); + } + finally + { + await consumer1Bus.DisposeAsync(); + if (consumer1Provider is IAsyncDisposable asyncConsumer1Provider) + { + await asyncConsumer1Provider.DisposeAsync(); + } + + await consumer2Bus.DisposeAsync(); + if (consumer2Provider is IAsyncDisposable asyncConsumer2Provider) + { + await asyncConsumer2Provider.DisposeAsync(); + } + + await senderBus.DisposeAsync(); + if (senderProvider is IAsyncDisposable asyncSenderProvider) + { + await asyncSenderProvider.DisposeAsync(); + } + } + } +} diff --git a/src/ServiceConnect.EndToEndTests/Bus/PointToPointTests.cs b/src/ServiceConnect.EndToEndTests/Bus/PointToPointTests.cs new file mode 100644 index 000000000..88c093568 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Bus/PointToPointTests.cs @@ -0,0 +1,100 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(IsolatedCollection))] +public class PointToPointTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + private IBus CreateBus(string queueName) + { + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton(); + services.AddServiceConnect(builder => + { + builder.ConfigureTransport(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureBus(c => c.ScanForMessageHandlers = false); + }); + + var provider = services.BuildServiceProvider(); + return provider.GetRequiredService(); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task SendAsync_MessageIsPublishedToRabbitMQ() + { + var queueName = _fixture.GetUniqueQueueName("send"); + + // Producer publishes with mandatory:true so a Send to an undeclared queue surfaces + // NO_ROUTE rather than silently dropping at the broker. The producer-only setup + // below does not start a consumer (no UseRabbitMQ binding), so declare the + // destination queue directly via RabbitMQ.Client before the send. + var preDeclareFactory = new global::RabbitMQ.Client.ConnectionFactory + { + HostName = _fixture.RabbitMqHostname, + Port = _fixture.RabbitMqPort, + UserName = _fixture.RabbitMqUsername, + Password = _fixture.RabbitMqPassword, + }; + await using (var preConn = await preDeclareFactory.CreateConnectionAsync()) + await using (var preCh = await preConn.CreateChannelAsync()) + { + await preCh.QueueDeclareAsync(queueName, durable: false, exclusive: false, autoDelete: true); + } + + var bus = CreateBus(queueName); + try + { + var message = new TestMessage(Guid.NewGuid()) { Content = "point-to-point test" }; + + var exception = await Record.ExceptionAsync(() => + bus.SendAsync(message, new SendOptions { EndPoint = queueName })); + + Assert.Null(exception); + } + finally + { + await bus.DisposeAsync(); + } + } + + [Fact] + [Trait("Category", "Docker")] + public async Task PublishAsync_MessageIsPublishedToExchange() + { + var queueName = _fixture.GetUniqueQueueName("publish"); + var bus = CreateBus(queueName); + try + { + var message = new TestMessage(Guid.NewGuid()) { Content = "publish test" }; + + var exception = await Record.ExceptionAsync(() => bus.PublishAsync(message)); + + Assert.Null(exception); + } + finally + { + await bus.DisposeAsync(); + } + } +} diff --git a/src/ServiceConnect.EndToEndTests/Bus/PublishAfterDisposeTests.cs b/src/ServiceConnect.EndToEndTests/Bus/PublishAfterDisposeTests.cs new file mode 100644 index 000000000..e19f2c8bd --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Bus/PublishAfterDisposeTests.cs @@ -0,0 +1,41 @@ +using Microsoft.Extensions.DependencyInjection; +using Moq; +using ServiceConnect.DependencyInjection; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +public class PublishAfterDisposeTests +{ + [Fact] + public async Task PublishAsync_AfterDispose_Throws() + { + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton(new Mock().Object); + services.AddServiceConnect(b => b + .ConfigureQueues(q => q.QueueName = "publish-after-dispose-test") + .ConfigureBus(c => c.ScanForMessageHandlers = false)); + + var provider = services.BuildServiceProvider(); + IBus bus; + + try + { + bus = provider.GetRequiredService(); + } + finally + { + await provider.DisposeAsync(); + } + + await Assert.ThrowsAsync(async () => + await bus.PublishAsync(new TestMessage())); + } + + private class TestMessage : Message + { + public TestMessage() : base(Guid.NewGuid()) { } + } +} diff --git a/src/ServiceConnect.EndToEndTests/Bus/PublishSubscribeTests.cs b/src/ServiceConnect.EndToEndTests/Bus/PublishSubscribeTests.cs new file mode 100644 index 000000000..ce9cf45df --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Bus/PublishSubscribeTests.cs @@ -0,0 +1,101 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +public class CallbackHandler(Action callback) : IMessageHandler where T : Message +{ + private readonly Action _callback = callback; + + public Task HandleAsync(T message, IConsumeContext context, CancellationToken cancellationToken = default) + { + _callback(message); + return Task.CompletedTask; + } +} + +[Collection(nameof(MessagingCollection))] +public class PublishSubscribeTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task Publish_SubscriberReceivesMessage() + { + // Arrange + var tcs = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var queueName = _fixture.GetUniqueQueueName("pubsub"); + + var handlerReferences = new List + { + new() { + HandlerType = typeof(CallbackHandler), + MessageType = typeof(TestMessage) + } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + + // Register handler references before AddServiceConnect so TryAddSingleton keeps this list + services.AddSingleton>(handlerReferences); + + // Register the handler, backed by our callback + services.AddTransient>(_ => + new CallbackHandler(msg => tcs.TrySetResult(msg))); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + // Start consuming + await bus.StartConsumingAsync(); + + + try + { + // Act + var correlationId = Guid.NewGuid(); + var sent = new TestMessage(correlationId) { Content = "hello publish-subscribe" }; + await bus.PublishAsync(sent); + + // Assert: wait up to 30 seconds for the handler to be called + var cts = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + cts.Token.Register(() => tcs.TrySetCanceled()); + + var received = await tcs.Task; + + Assert.Equal("hello publish-subscribe", received.Content); + Assert.Equal(correlationId, received.CorrelationId); + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + } +} diff --git a/src/ServiceConnect.EndToEndTests/Consumers/BrokerInitiatedCancelTests.cs b/src/ServiceConnect.EndToEndTests/Consumers/BrokerInitiatedCancelTests.cs new file mode 100644 index 000000000..d25ea4d36 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Consumers/BrokerInitiatedCancelTests.cs @@ -0,0 +1,149 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests.Consumers; + +/// +/// End-to-end guard that a broker-initiated queue deletion (basic.cancel) is observed +/// and logged by the consumer rather than causing a silent stall. Without ShutdownAsync / +/// ChannelShutdownAsync subscriptions the consumer would never learn its queue was gone. +/// +[Collection(nameof(IsolatedCollection))] +public class BrokerInitiatedCancelTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + /// + /// When the broker deletes the queue the consumer is active on, the consumer host + /// must detect the shutdown via the ShutdownAsync / ChannelShutdownAsync event + /// subscription, log a Warning, and allow clean DisposeAsync without hanging. + /// + [Fact] + [Trait("Category", "Docker")] + public async Task Consumer_WhenBrokerDeletesQueue_LogsShutdownAndDisposesCleanly() + { + var queueName = _fixture.GetUniqueQueueName("broker-cancel"); + + // Set up a custom logger provider that captures Warning+ messages. + var shutdownLogged = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var capturingProvider = new CapturingLoggerProvider( + (level, message) => + { + if (level >= LogLevel.Warning && message.Contains("shutdown", StringComparison.OrdinalIgnoreCase)) + { + shutdownLogged.TrySetResult(message); + } + }); + + var handlerReferences = new List + { + new() + { + HandlerType = typeof(CallbackHandler), + MessageType = typeof(TestMessage) + } + }; + + var services = new ServiceCollection(); + services.AddLogging(lb => lb.AddProvider(capturingProvider).SetMinimumLevel(LogLevel.Debug)); + services.AddSingleton>(handlerReferences); + services.AddTransient>(_ => + new CallbackHandler(_ => { /* no-op consumer */ })); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 0); + t.SetClientSetting("RetrySeconds", 0); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + await bus.StartConsumingAsync(); + + // Delete the queue via a raw connection — this triggers broker-initiated basic.cancel. + var factory = new ConnectionFactory + { + HostName = _fixture.RabbitMqHostname, + Port = _fixture.RabbitMqPort, + UserName = _fixture.RabbitMqUsername, + Password = _fixture.RabbitMqPassword + }; + + await using var adminConn = await factory.CreateConnectionAsync(); + await using var adminChannel = await adminConn.CreateChannelAsync(); + await adminChannel.QueueDeleteAsync(queueName, ifUnused: false, ifEmpty: false); + + // Wait for the consumer to log the shutdown — must observe within 10 s. + using var cts = new CancellationTokenSource(TimeSpan.FromSeconds(10)); + cts.Token.Register(() => shutdownLogged.TrySetCanceled()); + + string shutdownMessage; + try + { + shutdownMessage = await shutdownLogged.Task; + } + catch (OperationCanceledException) + { + // Reaching this branch means ShutdownAsync / ChannelShutdownAsync was never subscribed — + // the consumer is deaf to broker-initiated cancellation. + throw new TimeoutException( + "Consumer did not log a shutdown warning within 10 s after broker deleted the queue. " + + "ShutdownAsync / ChannelShutdownAsync events are not subscribed."); + } + + Assert.Contains("shutdown", shutdownMessage, StringComparison.OrdinalIgnoreCase); + + // Also assert that DisposeAsync completes cleanly (no hang) within 15 s. + // Note: bus.DisposeAsync() is called explicitly here (before provider.DisposeAsync) as + // a behavioural assertion on the timeout bound; this relies on Connection.DisposeAsync + // being idempotent since the provider scope will dispose it again via DI teardown. + using var disposeCts = new CancellationTokenSource(TimeSpan.FromSeconds(15)); + var disposeTask = bus.DisposeAsync().AsTask(); + var completed = await Task.WhenAny(disposeTask, Task.Delay(Timeout.Infinite, disposeCts.Token)); + Assert.Same(disposeTask, completed); + await disposeTask; // surface any exceptions + + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + + /// + /// Minimal ILoggerProvider that invokes a callback on every log call. + /// + private sealed class CapturingLoggerProvider(Action onLog) : ILoggerProvider + { + public ILogger CreateLogger(string categoryName) => new CapturingLogger(onLog); + public void Dispose() { } + + private sealed class CapturingLogger(Action onLog) : ILogger + { + public IDisposable? BeginScope(TState state) where TState : notnull => null; + public bool IsEnabled(LogLevel logLevel) => true; + public void Log(LogLevel logLevel, EventId eventId, TState state, Exception? exception, Func formatter) + { + var message = formatter(state, exception); + onLog(logLevel, message); + } + } + } +} diff --git a/src/ServiceConnect.EndToEndTests/ErrorHandling/CustomErrorQueueTests.cs b/src/ServiceConnect.EndToEndTests/ErrorHandling/CustomErrorQueueTests.cs new file mode 100644 index 000000000..758ae866d --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/ErrorHandling/CustomErrorQueueTests.cs @@ -0,0 +1,112 @@ +using System.Text; +using Microsoft.Extensions.DependencyInjection; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Helpers; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(MessagingCollection))] +public class CustomErrorQueueTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task CustomErrorQueueName_FailedMessage_SentToCustomQueue() + { + // Arrange + var queueName = _fixture.GetUniqueQueueName("custom-error"); + var customErrorQueueName = _fixture.GetUniqueQueueName("my-custom-errors"); + const int maxRetries = 1; + const int retryDelay = 1000; + + var handlerReferences = new List + { + new() + { + HandlerType = typeof(CallbackHandler), + MessageType = typeof(TestMessage) + } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>(handlerReferences); + services.AddTransient>(_ => + new CallbackHandler(_ => + throw new InvalidOperationException("Always fails"))); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.MaxRetries = maxRetries; + t.RetryDelay = retryDelay; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => + { + q.QueueName = queueName; + q.ErrorQueueName = customErrorQueueName; + }); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + await bus.StartConsumingAsync(); + + + try + { + // Act + var correlationId = Guid.NewGuid(); + var sent = new TestMessage(correlationId) { Content = "custom-error-queue" }; + await bus.PublishAsync(sent); + + // Assert: message appears in the custom-named error queue + var factory = new ConnectionFactory + { + HostName = _fixture.RabbitMqHostname, + Port = _fixture.RabbitMqPort, + UserName = _fixture.RabbitMqUsername, + Password = _fixture.RabbitMqPassword + }; + await using var conn = await factory.CreateConnectionAsync(); + await using var channel = await conn.CreateChannelAsync(); + + var errorMsg = await TestPolling.WaitForAsync( + async () => await channel.BasicGetAsync(customErrorQueueName, autoAck: true), + timeout: TimeSpan.FromSeconds(30)); + + Assert.NotNull(errorMsg); + + // Verify it's our message + var headers = errorMsg.BasicProperties.Headers!; + Assert.True(headers.ContainsKey("Exception")); + var exceptionJson = Encoding.UTF8.GetString((byte[])headers["Exception"]!); + Assert.Contains("Always fails", exceptionJson); + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + } +} diff --git a/src/ServiceConnect.EndToEndTests/ErrorHandling/DisableErrorsTests.cs b/src/ServiceConnect.EndToEndTests/ErrorHandling/DisableErrorsTests.cs new file mode 100644 index 000000000..ea71c98e4 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/ErrorHandling/DisableErrorsTests.cs @@ -0,0 +1,115 @@ +using Microsoft.Extensions.DependencyInjection; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(MessagingCollection))] +public class DisableErrorsTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task DisableErrors_DoesNotAffectAuditing_AuditIsStillPublished() + { + // Audit is orthogonal to DisableErrors — disabling the error/retry/DLQ topology + // must NOT also disable audit. Audit is gated separately by IQueueConfiguration + // .AuditingEnabled inside MessageAuditPublisher; combining the two would silently + // ack successful messages whenever errors were disabled, losing observability with + // no operator signal. This test asserts the decoupled contract: with DisableErrors + // =true AND AuditingEnabled=true, audit messages DO arrive on the audit queue. + + // Arrange + var tcs = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var queueName = _fixture.GetUniqueQueueName("disable-errors"); + var auditQueueName = _fixture.GetUniqueQueueName("disable-errors-aq"); + + var handlerReferences = new List + { + new() + { + HandlerType = typeof(CallbackHandler), + MessageType = typeof(TestMessage) + } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>(handlerReferences); + services.AddTransient>(_ => + new CallbackHandler(msg => tcs.TrySetResult(msg))); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => + { + q.QueueName = queueName; + q.AuditingEnabled = true; + q.AuditQueueName = auditQueueName; + q.DisableErrors = true; + }); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + await bus.StartConsumingAsync(); + + + try + { + // Act + var correlationId = Guid.NewGuid(); + var sent = new TestMessage(correlationId) { Content = "errors-disabled" }; + await bus.PublishAsync(sent); + + // Assert: handler still receives the message + var cts = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + cts.Token.Register(() => tcs.TrySetCanceled()); + var received = await tcs.Task; + Assert.Equal("errors-disabled", received.Content); + + // Assert: audit queue DOES receive the message — AuditingEnabled=true is + // honoured independently of DisableErrors=true. + await Task.Delay(2000); + + var factory = new ConnectionFactory + { + HostName = _fixture.RabbitMqHostname, + Port = _fixture.RabbitMqPort, + UserName = _fixture.RabbitMqUsername, + Password = _fixture.RabbitMqPassword + }; + await using var conn = await factory.CreateConnectionAsync(); + await using var channel = await conn.CreateChannelAsync(); + + var auditMsg = await channel.BasicGetAsync(auditQueueName, autoAck: true); + Assert.NotNull(auditMsg); + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + } +} diff --git a/src/ServiceConnect.EndToEndTests/ErrorHandling/ExceptionHandlerE2ETests.cs b/src/ServiceConnect.EndToEndTests/ErrorHandling/ExceptionHandlerE2ETests.cs new file mode 100644 index 000000000..2e21fac89 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/ErrorHandling/ExceptionHandlerE2ETests.cs @@ -0,0 +1,106 @@ +using System.Collections.Concurrent; +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(MessagingCollection))] +public class ExceptionHandlerE2ETests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task ExceptionHandler_HandlerThrows_CallbackReceivesException() + { + // Arrange + var queueName = _fixture.GetUniqueQueueName("exception-handler"); + var errorQueueName = _fixture.GetUniqueQueueName("exception-handler-eq"); + var capturedExceptions = new ConcurrentBag(); + + var handlerReferences = new List + { + new() + { + HandlerType = typeof(CallbackHandler), + MessageType = typeof(TestMessage) + } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>(handlerReferences); + services.AddTransient>(_ => + new CallbackHandler(_ => + throw new InvalidOperationException("test exception"))); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.MaxRetries = 0; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => + { + q.QueueName = queueName; + q.ErrorQueueName = errorQueueName; + }); + builder.ConfigureBus(b => + { + b.ScanForMessageHandlers = false; + b.ExceptionHandler = (ex, _) => { capturedExceptions.Add(ex); return ValueTask.CompletedTask; }; + }); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + await bus.StartConsumingAsync(); + + + try + { + // Act + var correlationId = Guid.NewGuid(); + var message = new TestMessage(correlationId) { Content = "trigger-exception" }; + await bus.PublishAsync(message); + + // Assert: wait for ExceptionHandler to fire + using var cts = new CancellationTokenSource(TimeSpan.FromSeconds(10)); + while (capturedExceptions.IsEmpty && !cts.Token.IsCancellationRequested) + { + await Task.Delay(100, cts.Token); + } + + Assert.False(capturedExceptions.IsEmpty, "ExceptionHandler was not invoked within timeout"); + + var captured = capturedExceptions.First(); + // The exception may be wrapped in a TargetInvocationException + var message_text = captured.Message.Contains("test exception") + ? captured.Message + : captured.InnerException?.Message ?? captured.Message; + + Assert.Contains("test exception", message_text); + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + } +} diff --git a/src/ServiceConnect.EndToEndTests/ErrorHandling/MalformedMessageTests.cs b/src/ServiceConnect.EndToEndTests/ErrorHandling/MalformedMessageTests.cs new file mode 100644 index 000000000..c643de00e --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/ErrorHandling/MalformedMessageTests.cs @@ -0,0 +1,123 @@ +using System.Text; +using Microsoft.Extensions.DependencyInjection; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Helpers; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(MessagingCollection))] +public class MalformedMessageTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task MalformedJson_MessageSentToErrorQueue() + { + // Arrange + var queueName = _fixture.GetUniqueQueueName("malformed"); + var errorQueueName = _fixture.GetUniqueQueueName("malformed-eq"); + + var handlerReferences = new List + { + new() + { + HandlerType = typeof(CallbackHandler), + MessageType = typeof(TestMessage) + } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>(handlerReferences); + services.AddTransient>(_ => + new CallbackHandler(_ => { /* should not be reached */ })); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.MaxRetries = 0; // fast error queue delivery — no retries + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => + { + q.QueueName = queueName; + q.ErrorQueueName = errorQueueName; + }); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + await bus.StartConsumingAsync(); + + + try + { + // Act: publish corrupt JSON directly via raw RabbitMQ client (bypassing bus serialization) + var factory = new ConnectionFactory + { + HostName = _fixture.RabbitMqHostname, + Port = _fixture.RabbitMqPort, + UserName = _fixture.RabbitMqUsername, + Password = _fixture.RabbitMqPassword + }; + + { + await using var conn = await factory.CreateConnectionAsync(); + await using var channel = await conn.CreateChannelAsync(); + + var props = new BasicProperties + { + Headers = new Dictionary + { + ["FullTypeName"] = Encoding.UTF8.GetBytes(typeof(TestMessage).AssemblyQualifiedName!), + ["MessageType"] = Encoding.UTF8.GetBytes(typeof(TestMessage).FullName!), + ["MessageId"] = Encoding.UTF8.GetBytes(Guid.NewGuid().ToString()) + } + }; + await channel.BasicPublishAsync("", queueName, mandatory: false, props, Encoding.UTF8.GetBytes("{{{INVALID JSON}}}")); + } + + // Assert: poll the error queue for the dead-lettered message + var pollFactory = new ConnectionFactory + { + HostName = _fixture.RabbitMqHostname, + Port = _fixture.RabbitMqPort, + UserName = _fixture.RabbitMqUsername, + Password = _fixture.RabbitMqPassword + }; + + await using var pollConn = await pollFactory.CreateConnectionAsync(); + await using var pollChannel = await pollConn.CreateChannelAsync(); + + var errorMsg = await TestPolling.WaitForAsync( + async () => await pollChannel.BasicGetAsync(errorQueueName, autoAck: true), + timeout: TimeSpan.FromSeconds(30)); + + Assert.NotNull(errorMsg); + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + } +} diff --git a/src/ServiceConnect.EndToEndTests/ErrorHandling/MaxRetriesZeroTests.cs b/src/ServiceConnect.EndToEndTests/ErrorHandling/MaxRetriesZeroTests.cs new file mode 100644 index 000000000..a247aa612 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/ErrorHandling/MaxRetriesZeroTests.cs @@ -0,0 +1,114 @@ +using Microsoft.Extensions.DependencyInjection; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(MessagingCollection))] +public class MaxRetriesZeroTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task MaxRetriesZero_HandlerFails_SentDirectlyToErrorQueue() + { + // Arrange + var queueName = _fixture.GetUniqueQueueName("maxretries-zero"); + var errorQueueName = _fixture.GetUniqueQueueName("maxretries-zero-eq"); + int attemptCount = 0; + + var handlerReferences = new List + { + new() + { + HandlerType = typeof(CallbackHandler), + MessageType = typeof(TestMessage) + } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>(handlerReferences); + services.AddTransient>(_ => + new CallbackHandler(_ => + { + Interlocked.Increment(ref attemptCount); + throw new InvalidOperationException("Simulated handler failure"); + })); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.MaxRetries = 0; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => + { + q.QueueName = queueName; + q.ErrorQueueName = errorQueueName; + }); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + await bus.StartConsumingAsync(); + + + try + { + // Act + var correlationId = Guid.NewGuid(); + var sent = new TestMessage(correlationId) { Content = "zero-retries-fail" }; + await bus.PublishAsync(sent); + + // Assert: poll error queue — message should arrive immediately (no retry delay) + var factory = new ConnectionFactory + { + HostName = _fixture.RabbitMqHostname, + Port = _fixture.RabbitMqPort, + UserName = _fixture.RabbitMqUsername, + Password = _fixture.RabbitMqPassword + }; + await using var conn = await factory.CreateConnectionAsync(); + await using var channel = await conn.CreateChannelAsync(); + + BasicGetResult? errorMsg = null; + for (int i = 0; i < 30 && errorMsg == null; i++) + { + errorMsg = await channel.BasicGetAsync(errorQueueName, autoAck: true); + if (errorMsg == null) + { + await Task.Delay(500); + } + } + + Assert.NotNull(errorMsg); + + // Handler should have been called exactly once — no retries + Assert.Equal(1, attemptCount); + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + } +} diff --git a/src/ServiceConnect.EndToEndTests/ErrorHandling/PoisonMessageRedeliveryTests.cs b/src/ServiceConnect.EndToEndTests/ErrorHandling/PoisonMessageRedeliveryTests.cs new file mode 100644 index 000000000..34ecdadbc --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/ErrorHandling/PoisonMessageRedeliveryTests.cs @@ -0,0 +1,142 @@ +using Microsoft.Extensions.DependencyInjection; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(MessagingCollection))] +public class PoisonMessageRedeliveryTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task RetryPublishFailure_DoesNotCauseUnboundedRedelivery() + { + // RabbitMqConsumerHost.ProcessMessageAsync must catch publish exceptions inside both + // HandleFailureAsync and HandleTerminalFailureAsync, log at Error, and still return true + // so EventAsync acks the message. Letting the exception propagate would set processed=false + // and the outer catch would NACK with requeue:true — a hot-loop on a poison message. + // + // Setup: a handler that always throws with MaxRetries=0 and an error queue pre-declared with + // x-overflow=reject-publish so the broker nacks the terminal-failure publish under publisher + // confirms. + // + // NOTE: RabbitMqConsumerHost's _publishChannel is ALWAYS created with publisher confirms + // enabled (hardcoded in StartConsumingAsync — CreateChannelOptions(publisherConfirmationsEnabled:true)). + // The reject-publish on the error queue will therefore surface as a thrown exception from + // BasicPublishAsync inside MessageRetryHandler.PublishErrorAsync, exercising the redelivery path. + // + // We pass matching UtilityQueueArguments to the bus so its QueueDeclareAsync call sees + // equivalent arguments and doesn't fail with PRECONDITION_FAILED — inequivalent arg. + + var queueName = _fixture.GetUniqueQueueName("poison"); + var errorQueueName = _fixture.GetUniqueQueueName("poison-eq"); + int attemptCount = 0; + + var errorQueueArgs = new Dictionary + { + ["x-max-length"] = 0, + ["x-overflow"] = "reject-publish", + }; + + // Pre-declare the error queue with reject-publish so the broker nacks publishes to it + // once it hits the max-length of 0. This forces HandleTerminalFailureAsync to throw + // under publisher confirms, simulating the broker-outage scenario from the issue. + var factory = new ConnectionFactory + { + HostName = _fixture.RabbitMqHostname, + Port = _fixture.RabbitMqPort, + UserName = _fixture.RabbitMqUsername, + Password = _fixture.RabbitMqPassword, + }; + await using (var conn = await factory.CreateConnectionAsync()) + await using (var channel = await conn.CreateChannelAsync()) + { + // Declare the exchange first (bus expects a direct exchange with same name as queue) + await channel.ExchangeDeclareAsync(errorQueueName, ExchangeType.Direct, durable: true, autoDelete: false); + // Declare queue with special args. Must match exactly what we pass to UtilityQueueArguments + // below so the bus's subsequent QueueDeclareAsync (isInitialSetup=true) sees equivalent args. + await channel.QueueDeclareAsync(errorQueueName, durable: true, exclusive: false, autoDelete: false, arguments: errorQueueArgs); + await channel.QueueBindAsync(errorQueueName, errorQueueName, string.Empty); + } + + var handlerReferences = new List + { + new() + { + HandlerType = typeof(CallbackHandler), + MessageType = typeof(TestMessage), + }, + }; + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>(handlerReferences); + services.AddTransient>(_ => + new CallbackHandler(_ => + { + Interlocked.Increment(ref attemptCount); + throw new InvalidOperationException("Simulated handler failure"); + })); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.MaxRetries = 0; // every failure → terminal-failure → publishes to error exchange + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + // Pass the same args the queue was pre-declared with so the bus's QueueDeclareAsync + // sees equivalent arguments and doesn't fail with inequivalent_arg on initial setup. + t.SetClientSetting("UtilityQueueArguments", errorQueueArgs); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => + { + q.QueueName = queueName; + q.ErrorQueueName = errorQueueName; + }); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + await bus.StartConsumingAsync(); + + try + { + var correlationId = Guid.NewGuid(); + var sent = new TestMessage(correlationId) { Content = "poison" }; + await bus.PublishAsync(sent); + + // Observe for 10 seconds. Redelivery loop symptom: attemptCount grows rapidly. + await Task.Delay(TimeSpan.FromSeconds(10)); + + // HandleTerminalFailureAsync throws (broker rejects the publish), the inner catch + // swallows it, ProcessMessageAsync returns true, and EventAsync acks the message — + // so the handler is called exactly once and there is no redelivery. + Assert.True(attemptCount == 1, + $"Expected the handler to be invoked exactly once (attemptCount == 1). " + + $"attemptCount={attemptCount}. Unbounded redelivery loop may have regressed, or the message was never delivered."); + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + } +} diff --git a/src/ServiceConnect.EndToEndTests/ErrorHandling/RetryAndErrorQueueTests.cs b/src/ServiceConnect.EndToEndTests/ErrorHandling/RetryAndErrorQueueTests.cs new file mode 100644 index 000000000..c771ab7a0 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/ErrorHandling/RetryAndErrorQueueTests.cs @@ -0,0 +1,228 @@ +using System.Text; +using Microsoft.Extensions.DependencyInjection; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Helpers; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(MessagingCollection))] +public class RetryAndErrorQueueTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task HandlerFailure_MessageRetriedUpToMaxRetries_ThenSentToErrorQueue() + { + // Arrange + var queueName = _fixture.GetUniqueQueueName("retry-error"); + var errorQueueName = _fixture.GetUniqueQueueName("retry-error-eq"); + int attemptCount = 0; + const int maxRetries = 2; + const int retryDelay = 1000; // 1 second + + var handlerReferences = new List + { + new() + { + HandlerType = typeof(CallbackHandler), + MessageType = typeof(TestMessage) + } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>(handlerReferences); + services.AddTransient>(_ => + new CallbackHandler(_ => + { + Interlocked.Increment(ref attemptCount); + throw new InvalidOperationException("Simulated handler failure"); + })); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.MaxRetries = maxRetries; + t.RetryDelay = retryDelay; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => + { + q.QueueName = queueName; + q.ErrorQueueName = errorQueueName; + }); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + await bus.StartConsumingAsync(); + + + try + { + // Act + var correlationId = Guid.NewGuid(); + var sent = new TestMessage(correlationId) { Content = "will-fail" }; + await bus.PublishAsync(sent); + + // Assert: poll error queue for the dead-lettered message + // Wait long enough for retries: (maxRetries * retryDelay) + buffer + var factory = new ConnectionFactory + { + HostName = _fixture.RabbitMqHostname, + Port = _fixture.RabbitMqPort, + UserName = _fixture.RabbitMqUsername, + Password = _fixture.RabbitMqPassword + }; + await using var conn = await factory.CreateConnectionAsync(); + await using var channel = await conn.CreateChannelAsync(); + + var errorMsg = await TestPolling.WaitForAsync( + async () => await channel.BasicGetAsync(errorQueueName, autoAck: true), + timeout: TimeSpan.FromSeconds(30)); + + Assert.NotNull(errorMsg); + + // Verify RetryCount header equals maxRetries + var headers = errorMsg.BasicProperties.Headers!; + Assert.True(headers.ContainsKey("RetryCount")); + Assert.Equal(maxRetries, (int)headers["RetryCount"]!); + + // Verify Exception header is present with serialized exception details + Assert.True(headers.ContainsKey("Exception")); + var exceptionJson = Encoding.UTF8.GetString((byte[])headers["Exception"]!); + Assert.Contains("Simulated handler failure", exceptionJson); + + // Handler should have been called 1 (initial) + maxRetries times + Assert.Equal(1 + maxRetries, attemptCount); + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + } + + [Fact] + [Trait("Category", "Docker")] + public async Task HandlerFailure_TransientError_MessageRetriedAndSucceeds() + { + // Arrange + var queueName = _fixture.GetUniqueQueueName("retry-transient"); + var errorQueueName = _fixture.GetUniqueQueueName("retry-transient-eq"); + var tcs = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + int attemptCount = 0; + const int failuresBeforeSuccess = 1; + + var handlerReferences = new List + { + new() + { + HandlerType = typeof(CallbackHandler), + MessageType = typeof(TestMessage) + } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>(handlerReferences); + services.AddTransient>(_ => + new CallbackHandler(msg => + { + int attempt = Interlocked.Increment(ref attemptCount); + if (attempt <= failuresBeforeSuccess) + { + throw new InvalidOperationException("Transient failure"); + } + + tcs.TrySetResult(msg); + })); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.MaxRetries = 3; + t.RetryDelay = 1000; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => + { + q.QueueName = queueName; + q.ErrorQueueName = errorQueueName; + }); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + await bus.StartConsumingAsync(); + + + try + { + // Act + var correlationId = Guid.NewGuid(); + var sent = new TestMessage(correlationId) { Content = "transient-recovery" }; + await bus.PublishAsync(sent); + + // Assert: message eventually processed successfully + var cts = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + cts.Token.Register(() => tcs.TrySetCanceled()); + var received = await tcs.Task; + + Assert.Equal("transient-recovery", received.Content); + Assert.Equal(correlationId, received.CorrelationId); + Assert.Equal(1 + failuresBeforeSuccess, attemptCount); + + // Verify error queue is empty (message was NOT dead-lettered) + var factory = new ConnectionFactory + { + HostName = _fixture.RabbitMqHostname, + Port = _fixture.RabbitMqPort, + UserName = _fixture.RabbitMqUsername, + Password = _fixture.RabbitMqPassword + }; + await using var conn = await factory.CreateConnectionAsync(); + await using var channel = await conn.CreateChannelAsync(); + + // Declare the error queue passively to check if it has messages + var errorMsg = await channel.BasicGetAsync(errorQueueName, autoAck: true); + Assert.Null(errorMsg); + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + } +} diff --git a/src/ServiceConnect.EndToEndTests/Filters/AuditingTests.cs b/src/ServiceConnect.EndToEndTests/Filters/AuditingTests.cs new file mode 100644 index 000000000..d62aaa51d --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Filters/AuditingTests.cs @@ -0,0 +1,210 @@ +using Microsoft.Extensions.DependencyInjection; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Helpers; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(MessagingCollection))] +public class AuditingTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task AuditingEnabled_SuccessfulMessage_CopiedToAuditQueue() + { + // Arrange + var tcs = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var queueName = _fixture.GetUniqueQueueName("audit-enabled"); + var auditQueueName = _fixture.GetUniqueQueueName("audit-enabled-aq"); + + var handlerReferences = new List + { + new() + { + HandlerType = typeof(CallbackHandler), + MessageType = typeof(TestMessage) + } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>(handlerReferences); + services.AddTransient>(_ => + new CallbackHandler(msg => tcs.TrySetResult(msg))); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => + { + q.QueueName = queueName; + q.AuditingEnabled = true; + q.AuditQueueName = auditQueueName; + }); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + await bus.StartConsumingAsync(); + + + try + { + // Act + var correlationId = Guid.NewGuid(); + var sent = new TestMessage(correlationId) { Content = "audit-me" }; + await bus.PublishAsync(sent); + + // Assert: handler receives message + var cts = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + cts.Token.Register(() => tcs.TrySetCanceled()); + var received = await tcs.Task; + Assert.Equal("audit-me", received.Content); + + // Assert: message also appears in audit queue + var factory = new ConnectionFactory + { + HostName = _fixture.RabbitMqHostname, + Port = _fixture.RabbitMqPort, + UserName = _fixture.RabbitMqUsername, + Password = _fixture.RabbitMqPassword + }; + await using var conn = await factory.CreateConnectionAsync(); + await using var channel = await conn.CreateChannelAsync(); + + var audited = await TestPolling.WaitForAsync( + async () => await channel.BasicGetAsync(auditQueueName, autoAck: true), + TimeSpan.FromSeconds(10)); + Assert.NotNull(audited); + + // Verify the audited message has the original headers + var headers = audited.BasicProperties.Headers!; + Assert.True(headers.ContainsKey("MessageId")); + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + } + + [Fact] + [Trait("Category", "Docker")] + public async Task AuditingDisabled_SuccessfulMessage_NotCopiedToAuditQueue() + { + // Arrange + var tcs = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var queueName = _fixture.GetUniqueQueueName("audit-disabled"); + var auditQueueName = _fixture.GetUniqueQueueName("audit-disabled-aq"); + + var handlerReferences = new List + { + new() + { + HandlerType = typeof(CallbackHandler), + MessageType = typeof(TestMessage) + } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>(handlerReferences); + services.AddTransient>(_ => + new CallbackHandler(msg => tcs.TrySetResult(msg))); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => + { + q.QueueName = queueName; + q.AuditingEnabled = false; // default, explicit for clarity + q.AuditQueueName = auditQueueName; + }); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + await bus.StartConsumingAsync(); + + + try + { + // Act + var correlationId = Guid.NewGuid(); + var sent = new TestMessage(correlationId) { Content = "no-audit" }; + await bus.PublishAsync(sent); + + // Assert: handler receives message + var cts = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + cts.Token.Register(() => tcs.TrySetCanceled()); + var received = await tcs.Task; + Assert.Equal("no-audit", received.Content); + + // Assert: audit queue should be empty (or not even created) + await Task.Delay(2000); // wait to be sure nothing arrives + + var factory = new ConnectionFactory + { + HostName = _fixture.RabbitMqHostname, + Port = _fixture.RabbitMqPort, + UserName = _fixture.RabbitMqUsername, + Password = _fixture.RabbitMqPassword + }; + await using var conn = await factory.CreateConnectionAsync(); + await using var channel = await conn.CreateChannelAsync(); + + // Queue may not exist at all if auditing is disabled — BasicGet on + // a non-existent queue throws, so declare it passively first + try + { + var auditMsg = await channel.BasicGetAsync(auditQueueName, autoAck: true); + Assert.Null(auditMsg); + } + catch (RabbitMQ.Client.Exceptions.OperationInterruptedException) + { + // Queue doesn't exist — expected when auditing is disabled + } + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + } +} diff --git a/src/ServiceConnect.EndToEndTests/Filters/FilterChainTests.cs b/src/ServiceConnect.EndToEndTests/Filters/FilterChainTests.cs new file mode 100644 index 000000000..f7d23278a --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Filters/FilterChainTests.cs @@ -0,0 +1,206 @@ +using System.Collections.Concurrent; +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +file sealed class OrderTrackingFilterA : IFilter +{ + + public Task ProcessAsync(Envelope envelope, CancellationToken cancellationToken = default) + { + FilterChainTests.ExecutionOrder.Enqueue("FilterA"); + return Task.FromResult(FilterAction.Continue); + } +} + +file sealed class OrderTrackingFilterB : IFilter +{ + + public Task ProcessAsync(Envelope envelope, CancellationToken cancellationToken = default) + { + FilterChainTests.ExecutionOrder.Enqueue("FilterB"); + return Task.FromResult(FilterAction.Continue); + } +} + +file sealed class ChainBlockingFilter : IFilter +{ + + public Task ProcessAsync(Envelope envelope, CancellationToken cancellationToken = default) + { + FilterChainTests.ExecutionOrder.Enqueue("BlockingFilter"); + return Task.FromResult(FilterAction.Stop); + } +} + +file sealed class ChainSecondFilter : IFilter +{ + + public Task ProcessAsync(Envelope envelope, CancellationToken cancellationToken = default) + { + FilterChainTests.ExecutionOrder.Enqueue("SecondFilter"); + return Task.FromResult(FilterAction.Continue); + } +} + +[Collection(nameof(MessagingCollection))] +public class FilterChainTests(MessagingFixture fixture) +{ + internal static readonly ConcurrentQueue ExecutionOrder = new(); + + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task MultipleBeforeConsumingFilters_AllRunInOrder() + { + // Arrange + ExecutionOrder.Clear(); + var handlerTcs = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var queueName = _fixture.GetUniqueQueueName("filter-chain-order"); + + var handlerReferences = new List + { + new() { HandlerType = typeof(CallbackHandler), MessageType = typeof(TestMessage) } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + + services.AddSingleton>(handlerReferences); + services.AddTransient>(_ => + new CallbackHandler(msg => handlerTcs.TrySetResult(msg))); + + services.AddSingleton(); + services.AddSingleton(); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + builder.AddBeforeConsumingFilter(); + builder.AddBeforeConsumingFilter(); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + await bus.StartConsumingAsync(); + + + try + { + // Act + var message = new TestMessage(Guid.NewGuid()) { Content = "filter-chain-order-test" }; + await bus.PublishAsync(message); + + // Assert: handler fires (both filters allowed through) + var cts = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + cts.Token.Register(() => handlerTcs.TrySetCanceled()); + + await handlerTcs.Task; // throws if cancelled + + var order = ExecutionOrder.ToArray(); + Assert.Equal(2, order.Length); + Assert.Equal("FilterA", order[0]); + Assert.Equal("FilterB", order[1]); + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + } + + [Fact] + [Trait("Category", "Docker")] + public async Task FirstFilterBlocks_SecondFilterNotCalled_HandlerNotInvoked() + { + // Arrange + ExecutionOrder.Clear(); + var handlerTcs = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var queueName = _fixture.GetUniqueQueueName("filter-chain-block"); + + var handlerReferences = new List + { + new() { HandlerType = typeof(CallbackHandler), MessageType = typeof(TestMessage) } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + + services.AddSingleton>(handlerReferences); + services.AddTransient>(_ => + new CallbackHandler(msg => handlerTcs.TrySetResult(msg))); + + services.AddSingleton(); + services.AddSingleton(); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + builder.AddBeforeConsumingFilter(); + builder.AddBeforeConsumingFilter(); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + await bus.StartConsumingAsync(); + + + try + { + // Act + var message = new TestMessage(Guid.NewGuid()) { Content = "filter-chain-block-test" }; + await bus.PublishAsync(message); + + // Assert: handler NOT invoked (first filter blocked) + var handlerWasCalled = await Task.WhenAny(handlerTcs.Task, Task.Delay(TimeSpan.FromSeconds(5))) == handlerTcs.Task; + Assert.False(handlerWasCalled, "Handler should not have been invoked because the first filter blocked the message."); + + // First filter ran, second filter and handler were not called + var order = ExecutionOrder.ToArray(); + Assert.Contains("BlockingFilter", order); + Assert.DoesNotContain("SecondFilter", order); + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + } +} diff --git a/src/ServiceConnect.EndToEndTests/Filters/FilterPipelineConsumerTests.cs b/src/ServiceConnect.EndToEndTests/Filters/FilterPipelineConsumerTests.cs new file mode 100644 index 000000000..de6f7b850 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Filters/FilterPipelineConsumerTests.cs @@ -0,0 +1,172 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +file sealed class ConsumerBlockingFilter : IFilter +{ + + public Task ProcessAsync(Envelope envelope, CancellationToken cancellationToken = default) + { + return Task.FromResult(FilterAction.Stop); // block the message — handler must not be invoked + } +} + +file sealed class AfterConsumingSignalFilter(TaskCompletionSource tcs) : IFilter +{ + private readonly TaskCompletionSource _tcs = tcs; + + public Task ProcessAsync(Envelope envelope, CancellationToken cancellationToken = default) + { + _tcs.TrySetResult(); + return Task.FromResult(FilterAction.Continue); + } +} + +[Collection(nameof(MessagingCollection))] +public class FilterPipelineConsumerTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task BeforeConsumingFilter_Blocks_HandlerNotInvoked() + { + // Arrange + var handlerInvokedTcs = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var queueName = _fixture.GetUniqueQueueName("filter-blocking"); + + var handlerReferences = new List + { + new() { HandlerType = typeof(CallbackHandler), MessageType = typeof(TestMessage) } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + + services.AddSingleton>(handlerReferences); + services.AddTransient>(_ => + new CallbackHandler(msg => handlerInvokedTcs.TrySetResult(msg))); + + services.AddSingleton(); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + builder.AddBeforeConsumingFilter(); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + await bus.StartConsumingAsync(); + + + try + { + // Act + var message = new TestMessage(Guid.NewGuid()) { Content = "should-be-blocked" }; + await bus.PublishAsync(message); + + // Wait 5 seconds — the handler should NOT fire + var handlerWasCalled = await Task.WhenAny(handlerInvokedTcs.Task, Task.Delay(TimeSpan.FromSeconds(5))) == handlerInvokedTcs.Task; + + // Assert + Assert.False(handlerWasCalled, "Handler should not have been invoked because the before-consuming filter blocked the message."); + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + } + + [Fact] + [Trait("Category", "Docker")] + public async Task AfterConsumingFilter_RunsAfterHandler() + { + // Arrange + var filterSignalTcs = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var queueName = _fixture.GetUniqueQueueName("filter-after"); + + var handlerReferences = new List + { + new() { HandlerType = typeof(CallbackHandler), MessageType = typeof(TestMessage) } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + + services.AddSingleton>(handlerReferences); + + // No-op handler + services.AddTransient>(_ => + new CallbackHandler(_ => { })); + + // Register the after-consuming filter with the shared TCS + services.AddSingleton(new AfterConsumingSignalFilter(filterSignalTcs)); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + builder.AddAfterConsumingFilter(); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + await bus.StartConsumingAsync(); + + + try + { + // Act + var message = new TestMessage(Guid.NewGuid()) { Content = "after-filter-test" }; + await bus.PublishAsync(message); + + // Assert: filter signals within 30 seconds + var cts = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + cts.Token.Register(() => filterSignalTcs.TrySetCanceled()); + + await filterSignalTcs.Task; // throws if cancelled + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + } +} diff --git a/src/ServiceConnect.EndToEndTests/Filters/FilterPipelineE2ETests.cs b/src/ServiceConnect.EndToEndTests/Filters/FilterPipelineE2ETests.cs new file mode 100644 index 000000000..84399d330 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Filters/FilterPipelineE2ETests.cs @@ -0,0 +1,97 @@ +using Microsoft.Extensions.DependencyInjection; +using Moq; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Exceptions; +using ServiceConnect.Interfaces.Options; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +file sealed class BlockingFilter : IFilter +{ + public bool WasCalled { get; private set; } + + public Task ProcessAsync(Envelope envelope, CancellationToken cancellationToken = default) + { + WasCalled = true; + return Task.FromResult(FilterAction.Stop); // block the message + } +} + +file sealed class HeaderAddingFilter : IFilter +{ + public bool WasCalled { get; private set; } + + public Task ProcessAsync(Envelope envelope, CancellationToken cancellationToken = default) + { + WasCalled = true; + envelope.Headers["X-Test-Header"] = "added-by-filter"; + return Task.FromResult(FilterAction.Continue); // allow the message through + } +} + +public class FilterPipelineE2ETests +{ + [Fact] + public async Task OutgoingFilter_BlockingMessage_ThrowsOutgoingFiltersBlocked() + { + var mockProducer = new Mock(); + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton(mockProducer.Object); + services.AddSingleton(); + services.AddServiceConnect(builder => + { + builder.ConfigureQueues(q => q.QueueName = "outgoing-filter-block-test"); + builder.AddOutgoingFilter(); + builder.ConfigureBus(c => c.ScanForMessageHandlers = false); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + var filter = provider.GetRequiredService(); + + var message = new TestMessage(Guid.NewGuid()) { Content = "blocked message" }; + + var ex = await Assert.ThrowsAsync( + () => bus.PublishAsync(message)); + + Assert.Contains("published", ex.Message, StringComparison.OrdinalIgnoreCase); + Assert.True(filter.WasCalled); + // Producer must not be called when the filter pipeline stops before the transport. + mockProducer.Verify(p => p.PublishAsync(It.IsAny(), It.IsAny>(), It.IsAny>(), It.IsAny()), Times.Never); + } + + [Fact] + public async Task OutgoingFilter_CanModifyHeaders() + { + var mockProducer = new Mock(); + mockProducer + .Setup(p => p.SendAsync(It.IsAny(), It.IsAny(), It.IsAny>(), It.IsAny(), It.IsAny>(), It.IsAny())) + .Returns(Task.CompletedTask); + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton(mockProducer.Object); + services.AddSingleton(); + services.AddServiceConnect(builder => + { + builder.ConfigureQueues(q => q.QueueName = "outgoing-filter-headers-test"); + builder.AddOutgoingFilter(); + builder.ConfigureBus(c => c.ScanForMessageHandlers = false); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + var filter = provider.GetRequiredService(); + + var message = new TestMessage(Guid.NewGuid()) { Content = "header-modified message" }; + + await bus.SendAsync(message, new SendOptions { EndPoint = "test-queue" }); + + Assert.True(filter.WasCalled); + mockProducer.Verify(p => p.SendAsync("test-queue", It.IsAny(), It.IsAny>(), It.IsAny(), It.IsAny>(), It.IsAny()), Times.Once); + } +} diff --git a/src/ServiceConnect.EndToEndTests/Filters/MessageDeduplicationTests.cs b/src/ServiceConnect.EndToEndTests/Filters/MessageDeduplicationTests.cs new file mode 100644 index 000000000..2027edbec --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Filters/MessageDeduplicationTests.cs @@ -0,0 +1,164 @@ +using System.Collections.Concurrent; +using System.Text; +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +file sealed class TestDeduplicationFilter : IFilter +{ + // Business-level dedup key supplied by the caller. Not a reserved transport header — + // the transport's MessageId is server-authoritative and cannot be used here. + public const string BusinessIdHeader = "TestBusinessId"; + + private readonly ConcurrentDictionary _seen = new(StringComparer.Ordinal); + + public Task ProcessAsync(Envelope envelope, CancellationToken cancellationToken = default) + { + if (!envelope.Headers.TryGetValue(BusinessIdHeader, out var rawId)) + { + return Task.FromResult(FilterAction.Continue); + } + + var messageId = rawId is byte[] bytes + ? Encoding.UTF8.GetString(bytes) + : rawId?.ToString() ?? string.Empty; + + if (string.IsNullOrEmpty(messageId)) + { + return Task.FromResult(FilterAction.Continue); + } + + if (_seen.TryAdd(messageId, 0)) + { + return Task.FromResult(FilterAction.Continue); + } + + // Already seen — block if this is a redelivery + if (!envelope.Headers.TryGetValue(HeaderKeys.Redelivered, out var rawRedelivered)) + { + return Task.FromResult(FilterAction.Continue); + } + + var redeliveredStr = rawRedelivered is byte[] redeliveredBytes + ? Encoding.UTF8.GetString(redeliveredBytes) + : rawRedelivered?.ToString() ?? string.Empty; + + var isRedelivery = string.Equals(redeliveredStr, "True", StringComparison.OrdinalIgnoreCase); + return Task.FromResult(isRedelivery ? FilterAction.Stop : FilterAction.Continue); + } +} + +[Collection(nameof(MessagingCollection))] +public class MessageDeduplicationTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task DeduplicationFilter_BlocksDuplicateRedeliveredMessage() + { + // Arrange + var receivedMessages = new ConcurrentBag(); + var firstReceived = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var queueName = _fixture.GetUniqueQueueName("dedup"); + var sharedBusinessId = Guid.NewGuid().ToString(); + var dedupFilter = new TestDeduplicationFilter(); + + var handlerReferences = new List + { + new() + { + HandlerType = typeof(CallbackHandler), + MessageType = typeof(TestMessage) + } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + + services.AddSingleton>(handlerReferences); + services.AddTransient>(_ => + new CallbackHandler(msg => + { + receivedMessages.Add(msg.Content ?? string.Empty); + firstReceived.TrySetResult(true); + })); + + // Register the shared filter instance so DI resolves the same object + services.AddSingleton(dedupFilter); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + builder.AddBeforeConsumingFilter(); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + await bus.StartConsumingAsync(); + + + try + { + // Act — send the first message with a specific business dedup id; handler should process it + var firstMessage = new TestMessage(Guid.NewGuid()) { Content = "first-delivery" }; + await bus.PublishAsync(firstMessage, new PublishOptions + { + Headers = new Dictionary + { + [TestDeduplicationFilter.BusinessIdHeader] = sharedBusinessId + } + }); + + // Wait for the first message to arrive + using var cts1 = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + cts1.Token.Register(() => firstReceived.TrySetCanceled()); + await firstReceived.Task; + + // Send second message with same business id AND Redelivered = "True" — filter should block it + var secondMessage = new TestMessage(Guid.NewGuid()) { Content = "second-delivery-duplicate" }; + await bus.PublishAsync(secondMessage, new PublishOptions + { + Headers = new Dictionary + { + [TestDeduplicationFilter.BusinessIdHeader] = sharedBusinessId, + [HeaderKeys.Redelivered] = "True" + } + }); + + // Wait 2 seconds to give the second message a chance to be processed (it should not be) + await Task.Delay(TimeSpan.FromSeconds(2)); + + // Assert: handler was invoked exactly once — the duplicate was blocked + Assert.Single(receivedMessages); + Assert.Equal("first-delivery", receivedMessages.First()); + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + } +} diff --git a/src/ServiceConnect.EndToEndTests/Filters/MiddlewarePipelineE2ETests.cs b/src/ServiceConnect.EndToEndTests/Filters/MiddlewarePipelineE2ETests.cs new file mode 100644 index 000000000..bdec6856f --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Filters/MiddlewarePipelineE2ETests.cs @@ -0,0 +1,123 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +file sealed class HeaderAddingSendMiddleware : ISendMessageMiddleware +{ + public Task ProcessAsync(SendContext context, SendMessageDelegate next, CancellationToken cancellationToken) + { + context.Headers["X-Send-Middleware"] = "applied"; + return next(context, cancellationToken); + } +} + +file sealed class HeaderCapturingMiddleware(TaskCompletionSource> tcs) : IMessageProcessingMiddleware +{ + private readonly TaskCompletionSource> _tcs = tcs; + + public async Task ProcessAsync( + ReadOnlyMemory messageBytes, Type messageType, object message, + IDictionary headers, Envelope envelope, MessageProcessingDelegate next, CancellationToken cancellationToken) + { + _tcs.TrySetResult(headers); + return await next(messageBytes, messageType, message, headers, envelope, cancellationToken); + } +} + +[Collection(nameof(MessagingCollection))] +public class MiddlewarePipelineE2ETests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task SendMiddleware_AddsHeader_ReceivedByConsumer() + { + // Arrange + var tcs = new TaskCompletionSource>(TaskCreationOptions.RunContinuationsAsynchronously); + var queueName = _fixture.GetUniqueQueueName("mw-pipeline"); + + var handlerReferences = new List + { + new() { + HandlerType = typeof(NoOpMessageHandler), + MessageType = typeof(TestMessage) + } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>(handlerReferences); + services.AddTransient, NoOpMessageHandler>(); + services.AddSingleton(); + services.AddSingleton(tcs); + services.AddSingleton(); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureTransport(t => t.MaxRetries = 0); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + builder.AddSendMessageMiddleware(); + builder.AddMessageProcessingMiddleware(); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + await bus.StartConsumingAsync(); + + + try + { + // Act + var message = new TestMessage(Guid.NewGuid()) { Content = "middleware-test" }; + await bus.PublishAsync(message); + + // Assert: wait up to 30 seconds for the processing middleware to capture headers + var cts = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + cts.Token.Register(() => tcs.TrySetCanceled()); + + var capturedHeaders = await tcs.Task; + + Assert.NotNull(capturedHeaders); + Assert.True(capturedHeaders.ContainsKey("X-Send-Middleware"), + "Expected 'X-Send-Middleware' header to be present in captured headers"); + + var rawValue = capturedHeaders["X-Send-Middleware"]; + var headerValue = rawValue is byte[] b + ? System.Text.Encoding.UTF8.GetString(b) + : rawValue?.ToString(); + Assert.Equal("applied", headerValue); + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + } +} + +file sealed class NoOpMessageHandler : IMessageHandler +{ + public Task HandleAsync(TestMessage message, IConsumeContext context, CancellationToken cancellationToken = default) => Task.CompletedTask; +} diff --git a/src/ServiceConnect.EndToEndTests/Fixtures/Collections.cs b/src/ServiceConnect.EndToEndTests/Fixtures/Collections.cs new file mode 100644 index 000000000..479434609 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Fixtures/Collections.cs @@ -0,0 +1,38 @@ +using Xunit; + +namespace ServiceConnect.EndToEndTests.Fixtures; + +/// +/// Tests that register TestMessage handlers must run sequentially — they share +/// the TestMessage fanout exchange and would cross-contaminate in parallel. +/// +[CollectionDefinition(nameof(MessagingCollection))] +public class MessagingCollection : ICollectionFixture +{ +} + +/// +/// Tests that only use TestRequest/TestResponse message types. +/// Safe to run in parallel with MessagingCollection since they bind to different exchanges. +/// +[CollectionDefinition(nameof(RequestReplyCollection))] +public class RequestReplyCollection : ICollectionFixture +{ +} + +/// +/// Tests that use unique message types (PriorityMessage, StepMessage, etc.) +/// or don't bind to any exchange. Safe to run in parallel. +/// +[CollectionDefinition(nameof(IsolatedCollection))] +public class IsolatedCollection : ICollectionFixture +{ +} + +/// +/// Tests requiring MongoDB persistence. +/// +[CollectionDefinition(nameof(PersistenceCollection))] +public class PersistenceCollection : ICollectionFixture +{ +} diff --git a/src/ServiceConnect.EndToEndTests/Fixtures/MessagingFixture.cs b/src/ServiceConnect.EndToEndTests/Fixtures/MessagingFixture.cs new file mode 100644 index 000000000..2c5d0568a --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Fixtures/MessagingFixture.cs @@ -0,0 +1,63 @@ +using Testcontainers.RabbitMq; +using Xunit; + +namespace ServiceConnect.EndToEndTests.Fixtures; + +public class MessagingFixture : IAsyncLifetime +{ + private static readonly SemaphoreSlim _initLock = new(1, 1); + private static RabbitMqContainer? _container; + private static int _refCount; + + private int _queueCounter; + + public string RabbitMqHostname => _container!.Hostname; + + public int RabbitMqPort => _container!.GetMappedPublicPort(5672); + + public string RabbitMqUsername => "guest"; + + public string RabbitMqPassword => "guest"; + + public string GetUniqueQueueName(string prefix = "test") => + $"{prefix}.{Interlocked.Increment(ref _queueCounter)}.{Guid.NewGuid():N}"; + + public async Task InitializeAsync() + { + await _initLock.WaitAsync(); + try + { + if (_container == null) + { + _container = new RabbitMqBuilder() + .WithUsername("guest") + .WithPassword("guest") + .Build(); + await _container.StartAsync(); + } + _refCount++; + } + finally + { + _initLock.Release(); + } + } + + public async Task DisposeAsync() + { + await _initLock.WaitAsync(); + try + { + _refCount--; + if (_refCount <= 0 && _container != null) + { + await _container.DisposeAsync(); + _container = null; + } + } + finally + { + _initLock.Release(); + } + } +} diff --git a/src/ServiceConnect.EndToEndTests/Fixtures/PersistenceFixture.cs b/src/ServiceConnect.EndToEndTests/Fixtures/PersistenceFixture.cs new file mode 100644 index 000000000..f37c9cdd5 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Fixtures/PersistenceFixture.cs @@ -0,0 +1,80 @@ +using Testcontainers.MongoDb; +using Testcontainers.RabbitMq; +using Xunit; + +namespace ServiceConnect.EndToEndTests.Fixtures; + +public class PersistenceFixture : IAsyncLifetime +{ + private static readonly SemaphoreSlim _initLock = new(1, 1); + private static RabbitMqContainer? _rabbitMqContainer; + private static MongoDbContainer? _mongoDbContainer; + private static int _refCount; + + private int _dbCounter; + private int _queueCounter; + + public string RabbitMqHostname => _rabbitMqContainer!.Hostname; + + public int RabbitMqPort => _rabbitMqContainer!.GetMappedPublicPort(5672); + + public string RabbitMqUsername => "guest"; + + public string RabbitMqPassword => "guest"; + + public string MongoDbConnectionString => _mongoDbContainer!.GetConnectionString(); + + public string GetUniqueDatabaseName(string prefix = "testdb") => + $"{prefix}_{Interlocked.Increment(ref _dbCounter)}_{Guid.NewGuid():N}"; + + public string GetUniqueQueueName(string prefix = "test") => + $"{prefix}.{Interlocked.Increment(ref _queueCounter)}.{Guid.NewGuid():N}"; + + public async Task InitializeAsync() + { + await _initLock.WaitAsync(); + try + { + if (_rabbitMqContainer == null) + { + _rabbitMqContainer = new RabbitMqBuilder() + .WithUsername("guest") + .WithPassword("guest") + .Build(); + _mongoDbContainer = new MongoDbBuilder() + .Build(); + await Task.WhenAll( + _rabbitMqContainer.StartAsync(), + _mongoDbContainer.StartAsync() + ); + } + _refCount++; + } + finally + { + _initLock.Release(); + } + } + + public async Task DisposeAsync() + { + await _initLock.WaitAsync(); + try + { + _refCount--; + if (_refCount <= 0 && _rabbitMqContainer != null) + { + await Task.WhenAll( + _rabbitMqContainer.DisposeAsync().AsTask(), + _mongoDbContainer!.DisposeAsync().AsTask() + ); + _rabbitMqContainer = null; + _mongoDbContainer = null; + } + } + finally + { + _initLock.Release(); + } + } +} diff --git a/src/ServiceConnect.EndToEndTests/HealthChecks/HealthCheckEndToEndTests.cs b/src/ServiceConnect.EndToEndTests/HealthChecks/HealthCheckEndToEndTests.cs new file mode 100644 index 000000000..a397bf958 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/HealthChecks/HealthCheckEndToEndTests.cs @@ -0,0 +1,108 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Diagnostics.HealthChecks; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.HealthChecks; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests.HealthChecks; + +[Collection(nameof(IsolatedCollection))] +public class HealthCheckEndToEndTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task AllThreeChecks_ReportHealthy_WhenBusAndBrokerAreAlive() + { + var queueName = _fixture.GetUniqueQueueName("healthcheck"); + + // Register a handler so StartConsumingAsync can open the consumer connection. + // The bus check needs IsConsuming = true; the consumer check needs IsConnected = true. + var handlerReferences = new List + { + new() { + HandlerType = typeof(NoOpHandler), + MessageType = typeof(HealthCheckProbe) + } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + + // Register handler references before AddServiceConnect so TryAddSingleton keeps this list. + services.AddSingleton>(handlerReferences); + services.AddTransient>(_ => new NoOpHandler()); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + services.AddHealthChecks() + .AddServiceConnectBus(tags: ["live"]) + .AddServiceConnectConsumer(tags: ["ready"]) + .AddServiceConnectProducer(tags: ["ready"]); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + await bus.StartConsumingAsync(); + + try + { + // Publish a message so the producer's lazy EnsureConnectedAsync runs + // and IProducer.IsHealthy becomes true before we call CheckHealthAsync. + await bus.PublishAsync(new HealthCheckProbe(Guid.NewGuid())); + + var hcService = provider.GetRequiredService(); + var report = await hcService.CheckHealthAsync(); + + Assert.Equal(HealthStatus.Healthy, report.Status); + Assert.Equal(3, report.Entries.Count); + + Assert.True(report.Entries.ContainsKey("serviceconnect-bus")); + Assert.Equal(HealthStatus.Healthy, report.Entries["serviceconnect-bus"].Status); + + Assert.True(report.Entries.ContainsKey("serviceconnect-consumer")); + Assert.Equal(HealthStatus.Healthy, report.Entries["serviceconnect-consumer"].Status); + + Assert.True(report.Entries.ContainsKey("serviceconnect-producer")); + Assert.Equal(HealthStatus.Healthy, report.Entries["serviceconnect-producer"].Status); + } + finally + { + await bus.StopConsumingAsync(); + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + } + + // Private message type scoped to this test class — avoids competing with any + // shared exchange that TestMessage binds to (fan-out exchange collision). + private sealed class HealthCheckProbe(Guid correlationId) : Message(correlationId); + + // Minimal handler — we only need it to exist so the consumer connection opens. + private sealed class NoOpHandler : IMessageHandler + { + public Task HandleAsync(HealthCheckProbe message, IConsumeContext context, CancellationToken cancellationToken = default) + => Task.CompletedTask; + } +} diff --git a/src/ServiceConnect.EndToEndTests/Helpers/TestPolling.cs b/src/ServiceConnect.EndToEndTests/Helpers/TestPolling.cs new file mode 100644 index 000000000..808446b60 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Helpers/TestPolling.cs @@ -0,0 +1,50 @@ +namespace ServiceConnect.EndToEndTests.Helpers; + +internal static class TestPolling +{ + private static readonly TimeSpan DefaultPollInterval = TimeSpan.FromMilliseconds(50); + + public static async Task WaitForAsync( + Func> probe, + TimeSpan timeout, + TimeSpan? pollInterval = null, + CancellationToken cancellationToken = default) + where T : class + { + var interval = pollInterval ?? DefaultPollInterval; + var deadline = DateTime.UtcNow + timeout; + while (DateTime.UtcNow < deadline) + { + cancellationToken.ThrowIfCancellationRequested(); + var result = await probe().ConfigureAwait(false); + if (result is not null) + { + return result; + } + + await Task.Delay(interval, cancellationToken).ConfigureAwait(false); + } + return null; + } + + public static async Task WaitUntilAsync( + Func> condition, + TimeSpan timeout, + TimeSpan? pollInterval = null, + CancellationToken cancellationToken = default) + { + var interval = pollInterval ?? DefaultPollInterval; + var deadline = DateTime.UtcNow + timeout; + while (DateTime.UtcNow < deadline) + { + cancellationToken.ThrowIfCancellationRequested(); + if (await condition().ConfigureAwait(false)) + { + return true; + } + + await Task.Delay(interval, cancellationToken).ConfigureAwait(false); + } + return false; + } +} diff --git a/src/ServiceConnect.EndToEndTests/Helpers/TestProcessManagerPropertyMapper.cs b/src/ServiceConnect.EndToEndTests/Helpers/TestProcessManagerPropertyMapper.cs new file mode 100644 index 000000000..9bf7f1397 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Helpers/TestProcessManagerPropertyMapper.cs @@ -0,0 +1,47 @@ +using System.Linq.Expressions; +using System.Reflection; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.EndToEndTests.Helpers; + +public class TestProcessManagerPropertyMapper : IProcessManagerPropertyMapper +{ + private readonly List _mappings = []; + public IReadOnlyList Mappings => _mappings; + + public void ConfigureMapping( + Expression> processManagerProperty, + Expression> messageExpression) + where TProcessManagerData : IProcessManagerData + where TMessage : Message + { + var propertiesHierarchy = new Dictionary(); + + var body = processManagerProperty.Body; + if (body is UnaryExpression unary) + { + body = unary.Operand; + } + + if (body is MemberExpression member) + { + var propInfo = (PropertyInfo)member.Member; + propertiesHierarchy[propInfo.Name] = propInfo.PropertyType; + } + + var map = new ProcessManagerToMessageMap + { + MessageType = typeof(TMessage), + PropertiesHierarchy = propertiesHierarchy, + MessageProp = BuildMessageFunc(messageExpression) + }; + + _mappings.Add(map); + } + + private static Func BuildMessageFunc(Expression> messageExpression) + { + var compiled = messageExpression.Compile(); + return obj => compiled((TMessage)obj); + } +} diff --git a/src/ServiceConnect.EndToEndTests/Messages/TestData.cs b/src/ServiceConnect.EndToEndTests/Messages/TestData.cs new file mode 100644 index 000000000..202b2e8ea --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Messages/TestData.cs @@ -0,0 +1,9 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.EndToEndTests.Messages; + +public class TestData : IProcessManagerData +{ + public Guid CorrelationId { get; set; } + public string Name { get; set; } = string.Empty; +} diff --git a/src/ServiceConnect.EndToEndTests/Messages/TestMessage.cs b/src/ServiceConnect.EndToEndTests/Messages/TestMessage.cs new file mode 100644 index 000000000..8f4cf959b --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Messages/TestMessage.cs @@ -0,0 +1,42 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.EndToEndTests.Messages; + +public class TestMessage(Guid correlationId) : Message(correlationId) +{ + public string Content { get; set; } = string.Empty; +} + +public class TestRequest(Guid correlationId) : Message(correlationId) +{ + public string Question { get; set; } = string.Empty; +} + +public class TestResponse(Guid correlationId) : Message(correlationId) +{ + public string Answer { get; set; } = string.Empty; +} + +public class PriorityMessage(Guid correlationId) : Message(correlationId) +{ + public int Priority { get; set; } + public int Order { get; set; } +} + +public class StepMessage(Guid correlationId) : Message(correlationId) +{ + public List VisitedSteps { get; set; } = []; + public string CurrentStep { get; set; } = string.Empty; +} + +public class DerivedTestMessage(Guid correlationId) : TestMessage(correlationId) +{ + public string Extra { get; set; } = string.Empty; +} + +public class TestProcessData : IProcessManagerData +{ + public Guid CorrelationId { get; set; } + public int Counter { get; set; } + public string LastContent { get; set; } = string.Empty; +} diff --git a/src/ServiceConnect.EndToEndTests/ModuleInit.cs b/src/ServiceConnect.EndToEndTests/ModuleInit.cs new file mode 100644 index 000000000..1d0399ed9 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/ModuleInit.cs @@ -0,0 +1,38 @@ +using System.Runtime.CompilerServices; +using MongoDB.Bson; +using MongoDB.Bson.Serialization; +using MongoDB.Bson.Serialization.Serializers; + +namespace ServiceConnect.EndToEndTests; + +internal static class ModuleInit +{ + [ModuleInitializer] + internal static void Initialize() + { + // MongoDB.Driver 3.x always operates in the V3 GuidRepresentation regime — every + // Guid member honours the per-serializer representation. We register Standard + // (UUID binary subtype 4) here *before* any BsonClassMap is auto-built so that + // tests touching a MongoDB-mapped type first don't freeze a wrong Guid serializer + // into a cached class map. + try + { + BsonSerializer.RegisterSerializer(typeof(Guid), new GuidSerializer(GuidRepresentation.Standard)); + } + catch + { + // Already registered — ignore + } + + // Configure MongoDB ObjectSerializer to allow all types before any test runs. + // This must happen before any MongoDB driver usage registers the default ObjectSerializer. + try + { + BsonSerializer.RegisterSerializer(new ObjectSerializer(ObjectSerializer.AllAllowedTypes)); + } + catch + { + // Already registered — ignore + } + } +} diff --git a/src/ServiceConnect.EndToEndTests/Persistence/MongoDbAggregatorInsertOrderTests.cs b/src/ServiceConnect.EndToEndTests/Persistence/MongoDbAggregatorInsertOrderTests.cs new file mode 100644 index 000000000..c9ec74567 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Persistence/MongoDbAggregatorInsertOrderTests.cs @@ -0,0 +1,85 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Microsoft.Extensions.Time.Testing; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.MongoDb; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(PersistenceCollection))] +public class MongoDbAggregatorInsertOrderTests(PersistenceFixture fixture) +{ + private readonly PersistenceFixture _fixture = fixture; + + // Concrete message type so MessageTypeRegistry.Register can map the type name + // to the CLR type at deserialization time. Implements IHasCorrelationId so the + // aggregator persistor can locate entries by correlation id without reflection. + private sealed class OrderTestMessage : IHasCorrelationId + { + public Guid CorrelationId { get; set; } + public int Sequence { get; set; } + } + + private MongoDbAggregatorPersistor BuildPersistor(string dbName, TimeProvider timeProvider, MessageTypeRegistry registry) + { + var options = new MongoDbPersistenceOptions + { + ConnectionString = _fixture.MongoDbConnectionString, + DatabaseName = dbName, + }; + var client = MongoClientFactory.Create(options); + return new MongoDbAggregatorPersistor( + client, + options, + NullLogger.Instance, + registry, + timeProvider); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task GetSnapshot_TwoInsertsAtSameTick_PreservesInsertionOrder() + { + // Both inserts share the same tick (clock not advanced). InsertSequence is the + // only field that can distinguish them — without it the sort would be + // (InsertedAtTicks=same, Id=random) which gives non-deterministic order. + var clock = new FakeTimeProvider(new DateTimeOffset(2026, 5, 1, 0, 0, 0, TimeSpan.Zero)); + var dbName = _fixture.GetUniqueDatabaseName("aggorder"); + var registry = new MessageTypeRegistry(); + registry.Register(typeof(OrderTestMessage)); + var persistor = BuildPersistor(dbName, clock, registry); + + await persistor.InsertDataAsync(new OrderTestMessage { CorrelationId = Guid.NewGuid(), Sequence = 1 }, "test-name", Guid.NewGuid().ToString()); + await persistor.InsertDataAsync(new OrderTestMessage { CorrelationId = Guid.NewGuid(), Sequence = 2 }, "test-name", Guid.NewGuid().ToString()); + + var snapshot = await persistor.GetSnapshotAsync("test-name"); + var sequences = snapshot.ResolvedMessages.Cast().Select(m => m.Sequence).ToArray(); + + Assert.Equal([1, 2], sequences); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task GetSnapshot_HighFrequencyInserts_PreservesInsertionOrder() + { + // 100 rapid inserts using the real system clock. Ticks can collide at high + // throughput; InsertSequence provides a per-process ordering guarantee even + // when InsertedAtTicks values are identical. + var dbName = _fixture.GetUniqueDatabaseName("aggorder2"); + var registry = new MessageTypeRegistry(); + registry.Register(typeof(OrderTestMessage)); + var persistor = BuildPersistor(dbName, TimeProvider.System, registry); + + for (var i = 1; i <= 100; i++) + { + await persistor.InsertDataAsync(new OrderTestMessage { CorrelationId = Guid.NewGuid(), Sequence = i }, "test-name", Guid.NewGuid().ToString()); + } + + var snapshot = await persistor.GetSnapshotAsync("test-name"); + var sequences = snapshot.ResolvedMessages.Cast().Select(m => m.Sequence).ToArray(); + + Assert.Equal([.. Enumerable.Range(1, 100)], sequences); + } +} diff --git a/src/ServiceConnect.EndToEndTests/Persistence/MongoDbAggregatorLeaseTests.cs b/src/ServiceConnect.EndToEndTests/Persistence/MongoDbAggregatorLeaseTests.cs new file mode 100644 index 000000000..e7f8207d9 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Persistence/MongoDbAggregatorLeaseTests.cs @@ -0,0 +1,166 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Microsoft.Extensions.Time.Testing; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.MongoDb; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +/// +/// Verifies the row-level lease that prevents two clustered +/// instances on the same Mongo collection from both snapshotting and dispatching the same rows. +/// Without the lease, both processes call GetSnapshotAsync, both read the full row set, +/// both invoke the aggregator's Execute, and both delete via RemoveSnapshotAsync — +/// producing a duplicate dispatch that the per-process semaphore cannot prevent. +/// +[Collection(nameof(PersistenceCollection))] +public class MongoDbAggregatorLeaseTests(PersistenceFixture fixture) +{ + private readonly PersistenceFixture _fixture = fixture; + + private sealed class LeaseTestMessage : IHasCorrelationId + { + public Guid CorrelationId { get; set; } + public int Sequence { get; set; } + } + + // Short lease so the lease-expiry path can be exercised against a real broker without + // waiting 5 real minutes. The lease is enforced server-side ($$NOW + leaseMs) so the + // test sleeps real time past the lease deadline — FakeTimeProvider cannot move the + // server's clock, so it isn't useful for verifying lease expiry against MongoDB. + private static readonly TimeSpan TestLeaseDuration = TimeSpan.FromSeconds(2); + + private MongoDbAggregatorPersistor BuildPersistor(string dbName, TimeProvider timeProvider, MessageTypeRegistry registry) + { + var options = new MongoDbPersistenceOptions + { + ConnectionString = _fixture.MongoDbConnectionString, + DatabaseName = dbName, + }; + var client = MongoClientFactory.Create(options); + return new MongoDbAggregatorPersistor( + client, + options, + NullLogger.Instance, + registry, + timeProvider, + leaseDuration: TestLeaseDuration); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task TwoPersistors_SecondGetSnapshotSeesNoRows_WhileFirstHoldsLease() + { + // Two persistors sharing one Mongo collection. After persistor A claims the rows + // via GetSnapshotAsync, persistor B's GetSnapshotAsync must observe an empty + // snapshot — A's lease is still valid. Without the lease both would see the + // full row set and both would dispatch. + var clock = new FakeTimeProvider(new DateTimeOffset(2026, 5, 1, 0, 0, 0, TimeSpan.Zero)); + var dbName = _fixture.GetUniqueDatabaseName("agglease"); + var registry = new MessageTypeRegistry(); + registry.Register(typeof(LeaseTestMessage)); + + var persistorA = BuildPersistor(dbName, clock, registry); + var persistorB = BuildPersistor(dbName, clock, registry); + + await persistorA.InsertDataAsync(new LeaseTestMessage { CorrelationId = Guid.NewGuid(), Sequence = 1 }, "lease-test", Guid.NewGuid().ToString()); + await persistorA.InsertDataAsync(new LeaseTestMessage { CorrelationId = Guid.NewGuid(), Sequence = 2 }, "lease-test", Guid.NewGuid().ToString()); + + var snapshotA = await persistorA.GetSnapshotAsync("lease-test"); + Assert.Equal(2, snapshotA.ResolvedMessages.Count); + + var snapshotB = await persistorB.GetSnapshotAsync("lease-test"); + // B must see nothing while A holds the lease. The lease is also held under A's + // own session id so B is forbidden from claiming until expiry. + Assert.Empty(snapshotB.ResolvedMessages); + Assert.Empty(snapshotB.ResolvedIds); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task LeaseExpires_SubsequentGetSnapshotReclaims() + { + // After the lease deadline elapses, a second persistor's GetSnapshotAsync + // reclaims the rows. This is the recovery path for a worker that crashed or + // was disconnected mid-flush. + var clock = new FakeTimeProvider(new DateTimeOffset(2026, 5, 1, 0, 0, 0, TimeSpan.Zero)); + var dbName = _fixture.GetUniqueDatabaseName("aggleaseexp"); + var registry = new MessageTypeRegistry(); + registry.Register(typeof(LeaseTestMessage)); + + var persistorA = BuildPersistor(dbName, clock, registry); + var persistorB = BuildPersistor(dbName, clock, registry); + + await persistorA.InsertDataAsync(new LeaseTestMessage { CorrelationId = Guid.NewGuid(), Sequence = 1 }, "lease-exp", Guid.NewGuid().ToString()); + + var first = await persistorA.GetSnapshotAsync("lease-exp"); + Assert.Single(first.ResolvedMessages); + + // Wait past the server-side lease deadline ($$NOW + leaseMs). FakeTimeProvider + // cannot move the MongoDB server clock; the lease is enforced server-side, so + // expiry requires real wall-clock advancement. + await Task.Delay(TestLeaseDuration + TimeSpan.FromMilliseconds(500)); + + var second = await persistorB.GetSnapshotAsync("lease-exp"); + Assert.Single(second.ResolvedMessages); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task RemoveSnapshot_AfterLeaseRotated_DoesNotDeleteOtherSessionsClaim() + { + // Edge case: A snapshots, then A's lease expires, then B claims, then A finally + // calls RemoveSnapshotAsync. The session-scoped delete filter must NOT match B's + // rows; otherwise A clobbers B's in-flight flush. + var clock = new FakeTimeProvider(new DateTimeOffset(2026, 5, 1, 0, 0, 0, TimeSpan.Zero)); + var dbName = _fixture.GetUniqueDatabaseName("aggleaserot"); + var registry = new MessageTypeRegistry(); + registry.Register(typeof(LeaseTestMessage)); + + var persistorA = BuildPersistor(dbName, clock, registry); + var persistorB = BuildPersistor(dbName, clock, registry); + + await persistorA.InsertDataAsync(new LeaseTestMessage { CorrelationId = Guid.NewGuid(), Sequence = 1 }, "lease-rot", Guid.NewGuid().ToString()); + + var snapshotA = await persistorA.GetSnapshotAsync("lease-rot"); + Assert.Single(snapshotA.ResolvedIds); + + await Task.Delay(TestLeaseDuration + TimeSpan.FromMilliseconds(500)); + + var snapshotB = await persistorB.GetSnapshotAsync("lease-rot"); + Assert.Single(snapshotB.ResolvedIds); + + // A's late RemoveSnapshotAsync must observe its session id no longer matches + // and leave B's claim intact. + await persistorA.RemoveSnapshotAsync("lease-rot", snapshotA); + + Assert.Equal(1, await persistorB.CountAsync("lease-rot")); + + // B's RemoveSnapshotAsync clears the row normally. + await persistorB.RemoveSnapshotAsync("lease-rot", snapshotB); + Assert.Equal(0, await persistorB.CountAsync("lease-rot")); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task GetThenRemove_HappyPath_StillWorksOnSinglePersistor() + { + // Sanity: the single-process flow is unaffected by the lease — Get followed by + // Remove on the same persistor still drains the rows. + var dbName = _fixture.GetUniqueDatabaseName("aggleasehappy"); + var registry = new MessageTypeRegistry(); + registry.Register(typeof(LeaseTestMessage)); + var persistor = BuildPersistor(dbName, TimeProvider.System, registry); + + await persistor.InsertDataAsync(new LeaseTestMessage { CorrelationId = Guid.NewGuid(), Sequence = 1 }, "lease-happy", Guid.NewGuid().ToString()); + await persistor.InsertDataAsync(new LeaseTestMessage { CorrelationId = Guid.NewGuid(), Sequence = 2 }, "lease-happy", Guid.NewGuid().ToString()); + + var snapshot = await persistor.GetSnapshotAsync("lease-happy"); + Assert.Equal(2, snapshot.ResolvedMessages.Count); + + await persistor.RemoveSnapshotAsync("lease-happy", snapshot); + Assert.Equal(0, await persistor.CountAsync("lease-happy")); + } +} diff --git a/src/ServiceConnect.EndToEndTests/Persistence/MongoDbAggregatorPersistorTests.cs b/src/ServiceConnect.EndToEndTests/Persistence/MongoDbAggregatorPersistorTests.cs new file mode 100644 index 000000000..02fe4ab6c --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Persistence/MongoDbAggregatorPersistorTests.cs @@ -0,0 +1,235 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Microsoft.Extensions.Time.Testing; +using MongoDB.Bson; +using MongoDB.Driver; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Exceptions; +using ServiceConnect.Persistence.MongoDb; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(PersistenceCollection))] +public class MongoDbAggregatorPersistorTests(PersistenceFixture fixture) +{ + private readonly PersistenceFixture _fixture = fixture; + + // Named types implementing IHasCorrelationId — required since anonymous types + // cannot implement interfaces and InsertDataAsync now enforces the contract. + private sealed class AggregatorTestItem : IHasCorrelationId + { + public Guid CorrelationId { get; set; } + public string Value { get; set; } = ""; + } + + private sealed class AggregatorLabelItem : IHasCorrelationId + { + public Guid CorrelationId { get; set; } + public string Label { get; set; } = ""; + } + + private MongoDbAggregatorPersistor CreatePersistor(string collectionName = "TestAggregator", MessageTypeRegistry? registry = null) + { + var dbName = _fixture.GetUniqueDatabaseName(); + var options = new MongoDbPersistenceOptions + { + ConnectionString = _fixture.MongoDbConnectionString, + DatabaseName = dbName + }; + var client = MongoClientFactory.Create(options); + return new MongoDbAggregatorPersistor(client, options, collectionName, NullLogger.Instance, registry ?? new MessageTypeRegistry()); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task InsertData_AndGetData_ReturnsInsertedItems() + { + var correlationId1 = Guid.NewGuid(); + var correlationId2 = Guid.NewGuid(); + var item1 = new AggregatorTestItem { Value = "item1", CorrelationId = correlationId1 }; + var item2 = new AggregatorTestItem { Value = "item2", CorrelationId = correlationId2 }; + + var registry = new MessageTypeRegistry(); + registry.Register(typeof(AggregatorTestItem)); + + var persistor = CreatePersistor(registry: registry); + + await persistor.InsertDataAsync(item1, "batch1", Guid.NewGuid().ToString()); + await persistor.InsertDataAsync(item2, "batch1", Guid.NewGuid().ToString()); + + var result = await persistor.GetDataAsync("batch1"); + + Assert.Equal(2, result.Count); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task Count_ReturnsCorrectCount() + { + var persistor = CreatePersistor(); + var correlationId1 = Guid.NewGuid(); + var correlationId2 = Guid.NewGuid(); + + await persistor.InsertDataAsync(new AggregatorTestItem { Value = "item1", CorrelationId = correlationId1 }, "batch2", Guid.NewGuid().ToString()); + await persistor.InsertDataAsync(new AggregatorTestItem { Value = "item2", CorrelationId = correlationId2 }, "batch2", Guid.NewGuid().ToString()); + + var count = await persistor.CountAsync("batch2"); + + Assert.Equal(2, count); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task RemoveData_RemovesByCorrelationId() + { + var persistor = CreatePersistor(); + var correlationId1 = Guid.NewGuid(); + var correlationId2 = Guid.NewGuid(); + + await persistor.InsertDataAsync(new AggregatorTestItem { Value = "item1", CorrelationId = correlationId1 }, "batch3", Guid.NewGuid().ToString()); + await persistor.InsertDataAsync(new AggregatorTestItem { Value = "item2", CorrelationId = correlationId2 }, "batch3", Guid.NewGuid().ToString()); + + await persistor.RemoveDataAsync("batch3", correlationId1); + + var count = await persistor.CountAsync("batch3"); + Assert.Equal(1, count); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task GetData_ReturnsEmptyList_WhenNoData() + { + var persistor = CreatePersistor(); + + var result = await persistor.GetDataAsync("nonexistent"); + + Assert.Empty(result); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task GetData_ReturnsMessagesInInsertionOrder() + { + // Snapshots must sort by InsertedAtTicks so the aggregator handler sees + // messages in the order they were written rather than whatever order the + // Mongo cursor happens to return. The fake TimeProvider is advanced + // between inserts so each row carries a distinct monotonic tick value. + var time = new FakeTimeProvider(new DateTimeOffset(2026, 4, 22, 9, 0, 0, TimeSpan.Zero)); + var dbName = _fixture.GetUniqueDatabaseName(); + var options = new MongoDbPersistenceOptions + { + ConnectionString = _fixture.MongoDbConnectionString, + DatabaseName = dbName, + }; + var client = MongoClientFactory.Create(options); + var registry = new MessageTypeRegistry(); + var persistor = new MongoDbAggregatorPersistor( + client, options, "OrderedAggregator", + NullLogger.Instance, registry, time); + + registry.Register(typeof(AggregatorLabelItem)); + var names = new[] { "first", "second", "third", "fourth", "fifth" }; + foreach (var name in names) + { + var item = new AggregatorLabelItem { CorrelationId = Guid.NewGuid(), Label = name }; + await persistor.InsertDataAsync(item, "ordered", Guid.NewGuid().ToString()); + time.Advance(TimeSpan.FromMilliseconds(25)); + } + + var result = await persistor.GetDataAsync("ordered"); + + var labels = result.Cast().Select(o => o.Label).ToArray(); + Assert.Equal(names, labels); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task EnsureIndexes_CancellationTokenCanceled_ThrowsOperationCanceled() + { + // Index creation must observe the CancellationToken so a shutting-down host can + // interrupt a stalled CreateManyAsync rather than blocking indefinitely. Pre-cancel + // the token and assert the first write fails fast with OperationCanceledException. + var persistor = CreatePersistor(); + using var cts = new CancellationTokenSource(); + cts.Cancel(); + + var registry = new MessageTypeRegistry(); + registry.Register(typeof(AggregatorTestItem)); + var item = new AggregatorTestItem { CorrelationId = Guid.NewGuid(), Value = "test" }; + + await Assert.ThrowsAnyAsync( + () => persistor.InsertDataAsync(item, "l9-batch", Guid.NewGuid().ToString(), cts.Token)); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task EnsureIndexes_ConcurrentProcessCreatedSameIndex_DoesNotThrow() + { + // Benign MongoCommandException 85/86 from concurrent index creation must not + // propagate as a persistence failure. Pre-create the compound index with a different + // Name so the persistor's CreateManyAsync hits Code 85 (IndexOptionsConflict). + var dbName = _fixture.GetUniqueDatabaseName(); + var options = new MongoDbPersistenceOptions + { + ConnectionString = _fixture.MongoDbConnectionString, + DatabaseName = dbName, + }; + var client = MongoClientFactory.Create(options); + var database = client.GetDatabase(options.DatabaseName); + var collection = database.GetCollection("TestAggregatorConflict"); + + var conflictingKeys = Builders.IndexKeys + .Ascending("Name") + .Ascending("DataBson.CorrelationId"); + await collection.Indexes.CreateOneAsync(new CreateIndexModel( + conflictingKeys, + new CreateIndexOptions { Name = "conflicting_name_correlation" })); + + var registry = new MessageTypeRegistry(); + registry.Register(typeof(AggregatorTestItem)); + var item = new AggregatorTestItem { CorrelationId = Guid.NewGuid(), Value = "test" }; + var persistor = new MongoDbAggregatorPersistor( + client, options, "TestAggregatorConflict", + NullLogger.Instance, registry); + + // First write triggers EnsureIndexesAsync; must NOT throw despite the conflict. + var ex = await Record.ExceptionAsync(() => persistor.InsertDataAsync(item, "batch-conflict", Guid.NewGuid().ToString())); + Assert.Null(ex); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task RemoveDataAsync_RowNotFound_ThrowsConcurrencyException() + { + // When no rows exist for the supplied Name, the delete is a structural mismatch — + // the caller used the wrong aggregator name or all rows were already removed via + // RemoveAllAsync. The interface contract names ConcurrencyException for any "row + // could not be located" outcome (both the empty-bucket and wrong-CorrelationId + // shapes), matching the InMemory persistor. + var persistor = CreatePersistor(); + + var ex = await Assert.ThrowsAsync( + () => persistor.RemoveDataAsync("nonexistent-agg", Guid.NewGuid(), CancellationToken.None)); + Assert.Contains("no rows for Name", ex.Message); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task RemoveDataAsync_NameExistsButCorrelationIdMismatch_ThrowsConcurrencyException() + { + // Companion to RowNotFound: the name bucket exists (so EnsureIndexes/collection isn't empty) + // but no row carries the supplied correlationId. Silent no-op here would mask the same class + // of data-integrity error the RowNotFound test guards against. + var registry = new MessageTypeRegistry(); + registry.Register(typeof(AggregatorTestItem)); + var existing = new AggregatorTestItem { CorrelationId = Guid.NewGuid(), Value = "existing" }; + var persistor = CreatePersistor(registry: registry); + + await persistor.InsertDataAsync(existing, "batch-mismatch", Guid.NewGuid().ToString()); + + await Assert.ThrowsAsync( + () => persistor.RemoveDataAsync("batch-mismatch", Guid.NewGuid(), CancellationToken.None)); + } +} diff --git a/src/ServiceConnect.EndToEndTests/Persistence/MongoDbAggregatorRemoveDataDistinctionTests.cs b/src/ServiceConnect.EndToEndTests/Persistence/MongoDbAggregatorRemoveDataDistinctionTests.cs new file mode 100644 index 000000000..1edfa79f6 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Persistence/MongoDbAggregatorRemoveDataDistinctionTests.cs @@ -0,0 +1,81 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Exceptions; +using ServiceConnect.Persistence.MongoDb; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +/// +/// Round-trip tests confirming that RemoveDataAsync distinguishes a missing +/// Name bucket (KeyNotFoundException) from a present Name bucket where the +/// CorrelationId is unmatched (ConcurrencyException with row count). +/// +[Collection(nameof(PersistenceCollection))] +public class MongoDbAggregatorRemoveDataDistinctionTests(PersistenceFixture fixture) +{ + private readonly PersistenceFixture _fixture = fixture; + + // Named type implementing IHasCorrelationId — required since anonymous types cannot + // implement interfaces and InsertDataAsync now enforces the contract. + private sealed class SharedItem : IHasCorrelationId + { + public Guid CorrelationId { get; set; } + public string Value { get; set; } = ""; + } + + private MongoDbAggregatorPersistor BuildPersistor(string dbName, MessageTypeRegistry? registry = null) + { + var options = new MongoDbPersistenceOptions + { + ConnectionString = _fixture.MongoDbConnectionString, + DatabaseName = dbName, + }; + var client = MongoClientFactory.Create(options); + return new MongoDbAggregatorPersistor( + client, + options, + NullLogger.Instance, + registry ?? new MessageTypeRegistry()); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task RemoveData_NoRowsForName_ThrowsConcurrencyException() + { + // The name has never been inserted; no documents exist for it. The contract + // on IAggregatorPersistor.RemoveDataAsync names ConcurrencyException for any + // "row could not be located" outcome — both the empty-bucket case and the + // wrong-CorrelationId case — so the failure shape matches the InMemory persistor. + var dbName = _fixture.GetUniqueDatabaseName("removedist1"); + var persistor = BuildPersistor(dbName); + + var ex = await Assert.ThrowsAsync(() => + persistor.RemoveDataAsync("never-existed", Guid.NewGuid())); + Assert.Contains("no rows for Name", ex.Message); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task RemoveData_NameExistsButNoCorrelation_ThrowsConcurrencyExceptionWithRowCount() + { + // A row exists for the Name, so the bucket is non-empty, but no row carries the + // supplied CorrelationId. This is the concurrent-removal race (or a mismatched key) + // and must surface as ConcurrencyException with the row count in the message. + var dbName = _fixture.GetUniqueDatabaseName("removedist2"); + var registry = new MessageTypeRegistry(); + registry.Register(typeof(SharedItem)); + var item = new SharedItem { CorrelationId = Guid.NewGuid(), Value = "shared" }; + var persistor = BuildPersistor(dbName, registry); + + await persistor.InsertDataAsync(item, "shared-name", Guid.NewGuid().ToString()); + + var ex = await Assert.ThrowsAsync(() => + persistor.RemoveDataAsync("shared-name", Guid.NewGuid())); + + Assert.Contains("row(s) exist for this Name", ex.Message); + } +} diff --git a/src/ServiceConnect.EndToEndTests/Persistence/MongoDbConcurrencyE2ETests.cs b/src/ServiceConnect.EndToEndTests/Persistence/MongoDbConcurrencyE2ETests.cs new file mode 100644 index 000000000..b03f859b7 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Persistence/MongoDbConcurrencyE2ETests.cs @@ -0,0 +1,397 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Microsoft.Extensions.Time.Testing; +using MongoDB.Bson.Serialization; +using MongoDB.Driver; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Helpers; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Exceptions; +using ServiceConnect.Persistence.MongoDb; +using ServiceConnect.Services; +using System.Collections.Concurrent; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +/// +/// E2E concurrency exercises for the MongoDB persistors. These run against a real +/// Mongo instance via the PersistenceFixture testcontainer so the tests actually +/// observe the driver's optimistic-concurrency semantics — a behaviour that cannot +/// be reproduced in-process. Marked Docker so they're skipped on non-Docker hosts. +/// +[Collection(nameof(PersistenceCollection))] +public class MongoDbConcurrencyE2ETests(PersistenceFixture fixture) +{ + private readonly PersistenceFixture _fixture = fixture; + + static MongoDbConcurrencyE2ETests() + { + // Mirror the registration the sibling MongoDbProcessManagerFinderTests do: + // AutoMap pins the GuidSerializer at registration time and we need + // Standard (subtype 4) so the filter lambdas line up with stored values. + if (!BsonClassMap.IsClassMapRegistered(typeof(TestData))) + { + BsonClassMap.RegisterClassMap(cm => + { + cm.AutoMap(); + cm.SetIsRootClass(true); + }); + } + } + + private MongoDbProcessManagerFinder CreateFinder() + { + var options = new MongoDbPersistenceOptions + { + ConnectionString = _fixture.MongoDbConnectionString, + DatabaseName = _fixture.GetUniqueDatabaseName("pmf_conc"), + }; + var client = MongoClientFactory.Create(options); + return new MongoDbProcessManagerFinder(client, options, NullLogger.Instance); + } + + private MongoDbAggregatorPersistor CreateAggregator(MessageTypeRegistry registry, out string collection) + { + var options = new MongoDbPersistenceOptions + { + ConnectionString = _fixture.MongoDbConnectionString, + DatabaseName = _fixture.GetUniqueDatabaseName("agg_conc"), + }; + var client = MongoClientFactory.Create(options); + collection = "ConcurrencyAggregator"; + return new MongoDbAggregatorPersistor(client, options, collection, NullLogger.Instance, registry); + } + + private MongoDbTimeoutStore CreateTimeoutStore(out FakeTimeProvider time) + { + var now = new DateTimeOffset(2026, 4, 22, 12, 0, 0, TimeSpan.Zero); + time = new FakeTimeProvider(now); + var options = new MongoDbPersistenceOptions + { + ConnectionString = _fixture.MongoDbConnectionString, + DatabaseName = _fixture.GetUniqueDatabaseName("ts_conc"), + }; + var client = MongoClientFactory.Create(options); + return new MongoDbTimeoutStore(client, options, NullLogger.Instance, time); + } + + private static IProcessManagerPropertyMapper BuildMapper() + { + var mapper = new TestProcessManagerPropertyMapper(); + mapper.ConfigureMapping(m => m.CorrelationId, pm => pm.CorrelationId); + return mapper; + } + + // ----- Process manager finder ----- + + [Fact] + [Trait("Category", "Docker")] + public async Task ProcessManagerFinder_ParallelInsertSameCorrelationId_OneSucceeds_RestThrowConcurrency() + { + // The compound (CorrelationId, Version) unique index combined with the + // initial-version=1 row turns concurrent first-inserts into a duplicate-key + // error. The persistor now surfaces those as ConcurrencyException so callers + // can re-find the just-committed row and take the update path; under a fan-in + // race exactly one inserter wins, the rest get ConcurrencyException. + var finder = CreateFinder(); + var corrId = Guid.NewGuid(); + const int contenders = 12; + var successes = 0; + var conflicts = 0; + var unexpected = 0; + + var tasks = Enumerable.Range(0, contenders).Select(_ => Task.Run(async () => + { + try + { + await finder.InsertDataAsync(new TestData { CorrelationId = corrId, Name = "first" }); + Interlocked.Increment(ref successes); + } + catch (ServiceConnect.Interfaces.Exceptions.ConcurrencyException) + { + Interlocked.Increment(ref conflicts); + } + catch + { + Interlocked.Increment(ref unexpected); + } + })).ToArray(); + + await Task.WhenAll(tasks); + + Assert.Equal(1, successes); + Assert.Equal(contenders - 1, conflicts); + Assert.Equal(0, unexpected); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task ProcessManagerFinder_ParallelUpdate_OptimisticConcurrencyAllowsExactlyOneWinner() + { + // All workers pre-fetch the same v=1 snapshot, then race UpdateDataAsync. + // The Mongo persistor's filter on (CorrelationId, Version) ensures only one + // worker's update matches the stored version; the rest must surface + // ConcurrencyException so the saga processor can re-read and retry. + var finder = CreateFinder(); + var mapper = BuildMapper(); + var corrId = Guid.NewGuid(); + await finder.InsertDataAsync(new TestData { CorrelationId = corrId, Name = "init" }); + + const int contenders = 12; + + // Pre-fetch the same v=1 row N times so each worker tries to update from v=1. + var copies = new IPersistenceData[contenders]; + for (var i = 0; i < contenders; i++) + { + var copy = await finder.FindDataAsync(mapper, new Message(corrId)); + Assert.NotNull(copy); + copy!.Data.Name = $"upd-{i}"; + copies[i] = copy; + } + + var successes = 0; + var conflicts = 0; + + var tasks = Enumerable.Range(0, contenders).Select(i => Task.Run(async () => + { + try + { + await finder.UpdateDataAsync(copies[i]); + Interlocked.Increment(ref successes); + } + catch (ConcurrencyException) + { + Interlocked.Increment(ref conflicts); + } + })).ToArray(); + + await Task.WhenAll(tasks); + + Assert.Equal(1, successes); + Assert.Equal(contenders - 1, conflicts); + + var final = await finder.FindDataAsync(mapper, new Message(corrId)); + Assert.NotNull(final); + Assert.Equal(2L, ((MongoDbData)final!).Version); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task ProcessManagerFinder_ParallelDelete_OnlyOneSucceeds_RestThrowConcurrency() + { + var finder = CreateFinder(); + var mapper = BuildMapper(); + var corrId = Guid.NewGuid(); + await finder.InsertDataAsync(new TestData { CorrelationId = corrId, Name = "doomed" }); + + const int contenders = 12; + var copies = new IPersistenceData[contenders]; + for (var i = 0; i < contenders; i++) + { + var copy = await finder.FindDataAsync(mapper, new Message(corrId)); + Assert.NotNull(copy); + copies[i] = copy!; + } + + var successes = 0; + var conflicts = 0; + + var tasks = Enumerable.Range(0, contenders).Select(i => Task.Run(async () => + { + try + { + await finder.DeleteDataAsync(copies[i]); + Interlocked.Increment(ref successes); + } + catch (ConcurrencyException) + { + Interlocked.Increment(ref conflicts); + } + })).ToArray(); + + await Task.WhenAll(tasks); + + Assert.Equal(1, successes); + Assert.Equal(contenders - 1, conflicts); + + // The row is gone after the winning delete. + Assert.Null(await finder.FindDataAsync(mapper, new Message(corrId))); + } + + // ----- Aggregator persistor ----- + + [Fact] + [Trait("Category", "Docker")] + public async Task AggregatorPersistor_ParallelInsert_AllItemsPersistedAndCounted() + { + var registry = new MessageTypeRegistry(); + registry.Register(typeof(AggregatorItem)); + + var persistor = CreateAggregator(registry, out _); + + const int writers = 8; + const int perWriter = 50; + const int expected = writers * perWriter; + + var tasks = Enumerable.Range(0, writers).Select(w => Task.Run(async () => + { + for (var i = 0; i < perWriter; i++) + { + await persistor.InsertDataAsync( + new AggregatorItem { CorrelationId = Guid.NewGuid(), Value = $"w{w}-i{i}" }, + "shared-batch", + Guid.NewGuid().ToString()); + } + })).ToArray(); + + await Task.WhenAll(tasks); + + Assert.Equal(expected, await persistor.CountAsync("shared-batch")); + var stored = await persistor.GetDataAsync("shared-batch"); + Assert.Equal(expected, stored.Count); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task AggregatorPersistor_ParallelRemoveSameCorrelationId_OneSucceedsRestThrowConcurrency() + { + var registry = new MessageTypeRegistry(); + registry.Register(typeof(AggregatorItem)); + + var persistor = CreateAggregator(registry, out _); + var item = new AggregatorItem { CorrelationId = Guid.NewGuid(), Value = "single" }; + await persistor.InsertDataAsync(item, "race-batch", Guid.NewGuid().ToString()); + + const int contenders = 12; + var successes = 0; + var conflicts = 0; + + var tasks = Enumerable.Range(0, contenders).Select(_ => Task.Run(async () => + { + try + { + await persistor.RemoveDataAsync("race-batch", item.CorrelationId); + Interlocked.Increment(ref successes); + } + catch (ConcurrencyException) + { + // Rows for Name still exist but not for this CorrelationId. + Interlocked.Increment(ref conflicts); + } + catch (KeyNotFoundException) + { + // The last row for Name was already removed by another contender. + // From the caller's perspective this is the same race outcome — counted as a conflict. + Interlocked.Increment(ref conflicts); + } + })).ToArray(); + + await Task.WhenAll(tasks); + + Assert.Equal(1, successes); + Assert.Equal(contenders - 1, conflicts); + Assert.Equal(0, await persistor.CountAsync("race-batch")); + } + + // ----- Timeout store ----- + + [Fact] + [Trait("Category", "Docker")] + public async Task TimeoutStore_ConcurrentGetBatch_DueRow_ClaimedByExactlyOneCaller() + { + // The Mongo timeout store relies on the FindOneAndUpdate atomic claim: many pollers + // racing on the same due row must observe exactly one claimant per row, with the + // others returning empty batches. + var store = CreateTimeoutStore(out var time); + var now = time.GetUtcNow(); + + const int rounds = 8; + const int parallelPolls = 6; + + for (var r = 0; r < rounds; r++) + { + var id = Guid.NewGuid(); + await store.InsertTimeoutAsync(new TimeoutData { Id = id, Time = now.AddMinutes(-1 - r) }); + + var observers = new ConcurrentBag(); + var pollers = Enumerable.Range(0, parallelPolls).Select(_ => Task.Run(async () => + { + var batch = await store.GetTimeoutsBatchAsync(); + foreach (var t in batch.DueTimeouts) + { + if (t.Id == id) + { + observers.Add(t.LockedBy); + } + } + })).ToArray(); + + await Task.WhenAll(pollers); + + Assert.Single(observers); + Assert.NotEqual(Guid.Empty, observers.Single()); + + // Move past the lease so subsequent rows can be claimed cleanly. + time.Advance(TimeSpan.FromMinutes(10)); + await store.RemoveDispatchedTimeoutAsync(id); + } + } + + [Fact] + [Trait("Category", "Docker")] + public async Task TimeoutStore_ParallelInsertAndPoll_AllInsertedRowsObservedExactlyOnce() + { + // Drive the store with many concurrent inserts then drain it via successive + // GetTimeoutsBatchAsync calls. Every inserted id must surface in exactly one + // claimed batch — no double dispatches, no lost rows. + var store = CreateTimeoutStore(out var time); + var now = time.GetUtcNow(); + + const int writers = 8; + const int perWriter = 40; + const int batchSize = 25; + var ids = new ConcurrentBag(); + + var writerTasks = Enumerable.Range(0, writers).Select(workerIdx => Task.Run(async () => + { + for (var i = 0; i < perWriter; i++) + { + var id = Guid.NewGuid(); + ids.Add(id); + await store.InsertTimeoutAsync(new TimeoutData { Id = id, Time = now.AddMinutes(-1) }); + } + })).ToArray(); + + await Task.WhenAll(writerTasks); + + // Drain with a fixed batch size and without advancing time. Each batch leases its + // chunk for the lease duration; the next batch sees the remaining unleased rows. + // Once everything is leased, the next call returns empty. + var seen = new HashSet(); + var totalRows = writers * perWriter; + var maxIterations = (totalRows / batchSize) + 5; + for (var attempts = 0; attempts < maxIterations; attempts++) + { + var batch = await store.GetTimeoutsBatchAsync(batchSize); + if (batch.DueTimeouts.Count == 0) + { + break; + } + foreach (var t in batch.DueTimeouts) + { + Assert.True(seen.Add(t.Id), $"Timeout {t.Id} returned twice"); + } + } + + Assert.Equal(ids.OrderBy(g => g), seen.OrderBy(g => g)); + } + + // Implements IHasCorrelationId so the aggregator persistor can locate entries + // by correlation id without reflection (required since the interface migration). + private sealed class AggregatorItem : IHasCorrelationId + { + public Guid CorrelationId { get; set; } + public string Value { get; set; } = ""; + } +} diff --git a/src/ServiceConnect.EndToEndTests/Persistence/MongoDbIndexEnsureRecoveryTests.cs b/src/ServiceConnect.EndToEndTests/Persistence/MongoDbIndexEnsureRecoveryTests.cs new file mode 100644 index 000000000..09405cf59 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Persistence/MongoDbIndexEnsureRecoveryTests.cs @@ -0,0 +1,126 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Microsoft.Extensions.Time.Testing; +using MongoDB.Bson; +using MongoDB.Driver; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.MongoDb; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(PersistenceCollection))] +public class MongoDbIndexEnsureRecoveryTests(PersistenceFixture fixture) +{ + private readonly PersistenceFixture _fixture = fixture; + + // Named type implementing IHasCorrelationId — required since anonymous types cannot + // implement interfaces and InsertDataAsync now enforces the contract. + private sealed class IndexRecoveryItem : IHasCorrelationId + { + public Guid CorrelationId { get; set; } + public string Value { get; set; } = ""; + } + + [Fact] + [Trait("Category", "Docker")] + public async Task TimeoutStore_AfterDbDrop_DoesNotRecreateIndexes_ByDesign() + { + // EnsureTimeoutIndexAsync caches a per-instance _indexed flag after first + // success, mirroring the saga finder and aggregator persistor. If an admin + // drops the database while the process is still running, the cached store + // will not re-create the indexes on the next insert — operators must + // recycle the store (process restart) to recover. The trade-off vs the + // per-message DropOneAsync + CreateManyAsync round-trip is documented; + // this test pins the contract so a future regression is caught. + var dbName = _fixture.GetUniqueDatabaseName("idxrecovery_to"); + var options = new MongoDbPersistenceOptions + { + ConnectionString = _fixture.MongoDbConnectionString, + DatabaseName = dbName, + }; + var client = MongoClientFactory.Create(options); + var store = new MongoDbTimeoutStore( + client, options, NullLogger.Instance, new FakeTimeProvider(DateTimeOffset.UtcNow)); + + // First write: causes EnsureTimeoutIndexAsync to create the indexes and + // flip _indexed=1. + await store.InsertTimeoutAsync(new TimeoutData + { + Id = Guid.NewGuid(), + Time = DateTimeOffset.UtcNow.AddMinutes(1), + }); + + var firstIndexes = await ListIndexNamesAsync(client, dbName, "Timeouts"); + Assert.Contains("Time_1_Locked_1", firstIndexes); + + // Simulate an admin dropping the database while the process is still running. + await client.DropDatabaseAsync(dbName); + + // Second write on the same store instance: the cache flag short-circuits the + // ensure path, so the indexes are NOT recreated. Pins that contract. + await store.InsertTimeoutAsync(new TimeoutData + { + Id = Guid.NewGuid(), + Time = DateTimeOffset.UtcNow.AddMinutes(1), + }); + + var secondIndexes = await ListIndexNamesAsync(client, dbName, "Timeouts"); + Assert.DoesNotContain("Time_1_Locked_1", secondIndexes); + Assert.DoesNotContain("LockedBy_1_Locked_1", secondIndexes); + Assert.DoesNotContain("LockExpiresAt_1", secondIndexes); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task AggregatorPersistor_AfterDbDrop_DoesNotRecreateIndexes_ByDesign() + { + // EnsureIndexesAsync caches a per-instance _indexed flag after first + // success. If an admin drops the database while the process is still + // running, the cached persistor will not re-create the indexes on the + // next insert — operators must recycle the persistor (process restart) + // to recover. The trade-off vs a per-message round-trip is documented; + // this test pins the contract so a future regression is caught. + var dbName = _fixture.GetUniqueDatabaseName("idxrecovery_agg"); + var options = new MongoDbPersistenceOptions + { + ConnectionString = _fixture.MongoDbConnectionString, + DatabaseName = dbName, + }; + var client = MongoClientFactory.Create(options); + var registry = new MessageTypeRegistry(); + var collectionName = "TestAggregator"; + var persistor = new MongoDbAggregatorPersistor( + client, options, collectionName, NullLogger.Instance, registry); + + registry.Register(typeof(IndexRecoveryItem)); + var item = new IndexRecoveryItem { Value = "first", CorrelationId = Guid.NewGuid() }; + + // First write: causes EnsureIndexesAsync to create the indexes and flip _indexed=1. + await persistor.InsertDataAsync(item, "batch1", Guid.NewGuid().ToString()); + + var firstIndexes = await ListIndexNamesAsync(client, dbName, collectionName); + Assert.Contains("Name_1", firstIndexes); + + // Simulate an admin dropping the database while the process is still running. + await client.DropDatabaseAsync(dbName); + + // Second write on the same persistor instance: the cache flag short-circuits + // the ensure path, so the indexes are NOT recreated. The test pins this contract. + var item2 = new IndexRecoveryItem { Value = "second", CorrelationId = Guid.NewGuid() }; + await persistor.InsertDataAsync(item2, "batch1", Guid.NewGuid().ToString()); + + var secondIndexes = await ListIndexNamesAsync(client, dbName, collectionName); + Assert.DoesNotContain("Name_1", secondIndexes); + } + + private static async Task> ListIndexNamesAsync(IMongoClient client, string db, string coll) + { + var cursor = await client.GetDatabase(db) + .GetCollection(coll) + .Indexes.ListAsync(); + var indexes = await cursor.ToListAsync(); + return [.. indexes.Select(idx => idx["name"].AsString)]; + } +} diff --git a/src/ServiceConnect.EndToEndTests/Persistence/MongoDbProcessManagerFinderConcurrentInsertTests.cs b/src/ServiceConnect.EndToEndTests/Persistence/MongoDbProcessManagerFinderConcurrentInsertTests.cs new file mode 100644 index 000000000..82ca140a0 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Persistence/MongoDbProcessManagerFinderConcurrentInsertTests.cs @@ -0,0 +1,63 @@ +using Microsoft.Extensions.Logging.Abstractions; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +// Startup-time index creation closes the cross-process race window where +// two cold-started processes could both insert a saga row with the same +// CorrelationId before either one ran the lazy EnsureCorrelationIdIndexAsync +// fallback. With the unique index in place before the first insert, exactly one +// concurrent insert survives and the rest fail with a duplicate-key error. +[Collection(nameof(PersistenceCollection))] +public class MongoDbProcessManagerFinderConcurrentInsertTests(PersistenceFixture fixture) +{ + private readonly PersistenceFixture _fixture = fixture; + + public sealed class IndexRaceSagaData : IProcessManagerData + { + public Guid CorrelationId { get; set; } + } + + [Fact] + [Trait("Category", "Docker")] + public async Task ConcurrentInsertSameCorrelationId_AfterStartupIndex_OnlyOneSurvives() + { + var dbName = _fixture.GetUniqueDatabaseName("indexrace"); + var options = new MongoDbPersistenceOptions + { + ConnectionString = _fixture.MongoDbConnectionString, + DatabaseName = dbName, + }; + var client = MongoClientFactory.Create(options); + var finder = new MongoDbProcessManagerFinder(client, options, NullLogger.Instance); + + // Simulate the hosted service: pre-create the unique index for the saga type. + await finder.EnsureCorrelationIdIndexForTypeAsync(typeof(IndexRaceSagaData), CancellationToken.None); + + var correlationId = Guid.NewGuid(); + var tasks = Enumerable.Range(0, 10) + .Select(_ => Task.Run(async () => + { + try + { + await finder.InsertDataAsync(new IndexRaceSagaData { CorrelationId = correlationId }); + return true; + } + catch (Exception) + { + // Mongo throws E11000 (duplicate key) which surfaces wrapped as + // PersistenceException — either way, this insert lost the race. + return false; + } + })) + .ToArray(); + + var results = await Task.WhenAll(tasks); + var successCount = results.Count(r => r); + + Assert.Equal(1, successCount); + } +} diff --git a/src/ServiceConnect.EndToEndTests/Persistence/MongoDbProcessManagerFinderFreshDataTests.cs b/src/ServiceConnect.EndToEndTests/Persistence/MongoDbProcessManagerFinderFreshDataTests.cs new file mode 100644 index 000000000..a80c94bf3 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Persistence/MongoDbProcessManagerFinderFreshDataTests.cs @@ -0,0 +1,81 @@ +using Microsoft.Extensions.Logging.Abstractions; +using MongoDB.Bson.Serialization; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Helpers; +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +// Regression pin for the fresh-copy contract on IProcessManagerFinder.FindDataAsync. +// +// MongoDbProcessManagerFinder complies via BSON deserialization: each FindDataAsync +// call executes a fresh MongoDB query and deserializes a new CLR object from the +// BSON response. The two returned Data references must therefore be distinct objects, +// ensuring that a handler mutating Data in one call cannot affect the next call. +[Collection(nameof(PersistenceCollection))] +public class MongoDbProcessManagerFinderFreshDataTests(PersistenceFixture fixture) +{ + private readonly PersistenceFixture _fixture = fixture; + + static MongoDbProcessManagerFinderFreshDataTests() + { + // AutoMap pins the Standard Guid serializer for CorrelationId before the + // first BSON read/write. IsClassMapRegistered guards against duplicate + // registration when xUnit loads the assembly in parallel. + if (!BsonClassMap.IsClassMapRegistered(typeof(FreshCopySagaData))) + { + BsonClassMap.RegisterClassMap(cm => + { + cm.AutoMap(); + cm.SetIsRootClass(true); + }); + } + } + + public class FreshCopySagaData : IProcessManagerData + { + public Guid CorrelationId { get; set; } + public string Name { get; set; } = ""; + } + + private MongoDbProcessManagerFinder CreateFinder(string prefix) + { + var options = new MongoDbPersistenceOptions + { + ConnectionString = _fixture.MongoDbConnectionString, + DatabaseName = _fixture.GetUniqueDatabaseName(prefix), + }; + var client = MongoClientFactory.Create(options); + return new MongoDbProcessManagerFinder(client, options, NullLogger.Instance); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task FindDataAsync_ReturnsFreshDataReferencePerCall() + { + // Arrange + var finder = CreateFinder("pmf_freshcopy"); + var corrId = Guid.NewGuid(); + + await finder.InsertDataAsync(new FreshCopySagaData { CorrelationId = corrId, Name = "Original" }); + + var mapper = new TestProcessManagerPropertyMapper(); + mapper.ConfigureMapping( + saga => saga.CorrelationId, + msg => msg.CorrelationId); + + var msg = new Message(corrId); + + // Act + var first = await finder.FindDataAsync(mapper, msg); + var second = await finder.FindDataAsync(mapper, msg); + + // Assert + Assert.NotNull(first); + Assert.NotNull(second); + Assert.False(ReferenceEquals(first!.Data, second!.Data), + "FindDataAsync must return a fresh Data instance per call so handler mutation can't leak across retries."); + } +} diff --git a/src/ServiceConnect.EndToEndTests/Persistence/MongoDbProcessManagerFinderRoundTripTests.cs b/src/ServiceConnect.EndToEndTests/Persistence/MongoDbProcessManagerFinderRoundTripTests.cs new file mode 100644 index 000000000..f73cafcd4 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Persistence/MongoDbProcessManagerFinderRoundTripTests.cs @@ -0,0 +1,173 @@ +using Microsoft.Extensions.Logging.Abstractions; +using MongoDB.Bson.Serialization; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Helpers; +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +// Round-trip exercise of property-hierarchy lookups against a real MongoDB. +// +// The companion unit tests pin the expression-tree shape (RHS wrapped in +// Expression.Convert(.., declaredType)). These tests prove the same coercion +// works end-to-end against the BSON serializer + driver: a saga inserted with a +// wider/different declared type must be findable by a message that exposes the +// matching property at a narrower runtime type. +[Collection(nameof(PersistenceCollection))] +public class MongoDbProcessManagerFinderRoundTripTests(PersistenceFixture fixture) +{ + private readonly PersistenceFixture _fixture = fixture; + + static MongoDbProcessManagerFinderRoundTripTests() + { + // BSON ClassMap registrations must be in place before the first read/write + // of each saga type so AutoMap pins the (Standard) Guid serializer for the + // CorrelationId property — the same defensive registration the sibling + // suites use. IsClassMapRegistered guards against duplicate registration + // when this assembly is loaded multiple times. + if (!BsonClassMap.IsClassMapRegistered(typeof(LongPropSagaData))) + { + BsonClassMap.RegisterClassMap(cm => + { + cm.AutoMap(); + cm.SetIsRootClass(true); + }); + } + if (!BsonClassMap.IsClassMapRegistered(typeof(NullableIntPropSagaData))) + { + BsonClassMap.RegisterClassMap(cm => + { + cm.AutoMap(); + cm.SetIsRootClass(true); + }); + } + if (!BsonClassMap.IsClassMapRegistered(typeof(DecimalPropSagaData))) + { + BsonClassMap.RegisterClassMap(cm => + { + cm.AutoMap(); + cm.SetIsRootClass(true); + }); + } + } + + public class LongPropSagaData : IProcessManagerData + { + public Guid CorrelationId { get; set; } + public long OrderNumber { get; set; } + } + + public class NullableIntPropSagaData : IProcessManagerData + { + public Guid CorrelationId { get; set; } + public int? Sequence { get; set; } + } + + public class DecimalPropSagaData : IProcessManagerData + { + public Guid CorrelationId { get; set; } + public decimal Amount { get; set; } + } + + public class IntPropMessage(Guid correlationId) : Message(correlationId) + { + public int OrderNumber { get; set; } + public int Sequence { get; set; } + public int Amount { get; set; } + } + + private MongoDbProcessManagerFinder CreateFinder(string prefix) + { + var options = new MongoDbPersistenceOptions + { + ConnectionString = _fixture.MongoDbConnectionString, + DatabaseName = _fixture.GetUniqueDatabaseName(prefix), + }; + var client = MongoClientFactory.Create(options); + return new MongoDbProcessManagerFinder(client, options, NullLogger.Instance); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task FindData_SagaPropertyLong_MessagePropertyInt_FindsRow() + { + // Saga side declared as long, message side declared as int. The dynamic predicate + // must wrap the RHS in Convert(constant, long) so both sides match the saga's + // declared type and the BSON projection queries the right path. Without the + // Convert, the runtime int type leaks into the projection and the find silently + // misses. + var finder = CreateFinder("pmf_h10_long"); + var corrId = Guid.NewGuid(); + const long orderNumber = 12345L; + + await finder.InsertDataAsync(new LongPropSagaData { CorrelationId = corrId, OrderNumber = orderNumber }); + + var mapper = new TestProcessManagerPropertyMapper(); + mapper.ConfigureMapping( + saga => saga.OrderNumber, + msg => msg.OrderNumber); + + var msg = new IntPropMessage(corrId) { OrderNumber = (int)orderNumber }; + var result = await finder.FindDataAsync(mapper, msg); + + Assert.NotNull(result); + Assert.Equal(corrId, result!.Data.CorrelationId); + Assert.Equal(orderNumber, result.Data.OrderNumber); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task FindData_SagaPropertyNullableInt_MessagePropertyInt_FindsRow() + { + // Saga side is Nullable, message side is plain int. The Convert(constant, int?) + // lifts the RHS to the nullable type so the document is returned. Without the + // Convert, Expression.Equal(Nullable, int) is rejected up front + // (InvalidOperationException) and FindDataAsync surfaces a PersistenceException. + var finder = CreateFinder("pmf_h10_nullable"); + var corrId = Guid.NewGuid(); + int? sequence = 99; + + await finder.InsertDataAsync(new NullableIntPropSagaData { CorrelationId = corrId, Sequence = sequence }); + + var mapper = new TestProcessManagerPropertyMapper(); + mapper.ConfigureMapping( + saga => saga.Sequence!, + msg => msg.Sequence); + + var msg = new IntPropMessage(corrId) { Sequence = sequence!.Value }; + var result = await finder.FindDataAsync(mapper, msg); + + Assert.NotNull(result); + Assert.Equal(corrId, result!.Data.CorrelationId); + Assert.Equal(sequence, result.Data.Sequence); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task FindData_SagaPropertyDecimal_MessagePropertyInt_FindsRow() + { + // Saga side declared as decimal, message side declared as int. Same shape as + // the long case: Expression.Equal(decimal, int) is rejected by the expression-tree + // binder (no implicit binary operator between the two primitive types), so the RHS + // must be wrapped in Convert(constant, decimal). + var finder = CreateFinder("pmf_h10_decimal"); + var corrId = Guid.NewGuid(); + const decimal amount = 250m; + + await finder.InsertDataAsync(new DecimalPropSagaData { CorrelationId = corrId, Amount = amount }); + + var mapper = new TestProcessManagerPropertyMapper(); + mapper.ConfigureMapping( + saga => saga.Amount, + msg => msg.Amount); + + var msg = new IntPropMessage(corrId) { Amount = (int)amount }; + var result = await finder.FindDataAsync(mapper, msg); + + Assert.NotNull(result); + Assert.Equal(corrId, result!.Data.CorrelationId); + Assert.Equal(amount, result.Data.Amount); + } +} diff --git a/src/ServiceConnect.EndToEndTests/Persistence/MongoDbTimeoutStoreFacetTests.cs b/src/ServiceConnect.EndToEndTests/Persistence/MongoDbTimeoutStoreFacetTests.cs new file mode 100644 index 000000000..71d371014 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Persistence/MongoDbTimeoutStoreFacetTests.cs @@ -0,0 +1,64 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Microsoft.Extensions.Time.Testing; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(PersistenceCollection))] +public class MongoDbTimeoutStoreFacetTests(PersistenceFixture fixture) +{ + private readonly PersistenceFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task GetTimeoutsBatchAsync_ReturnsDueTimeoutsFromFacet() + { + // Investigation for the "Uncertain" item at consolodated-issues/2026-04-22-consolidated-issues.md: + // MongoDbTimeoutStore.GetTimeoutsBatchAsync uses `is AggregateFacetResult` pattern match on + // the facet result. If the pinned MongoDB driver returns a non-generic carrier, the match fails silently + // and DueTimeouts is always empty → total timeout-dispatch outage. + // + // This test PASSES if the pattern match works as intended (issue disconfirmed). + // This test FAILS (DueTimeouts is empty) if the pattern match is broken (issue confirmed). + + var now = new DateTimeOffset(2026, 4, 22, 12, 0, 0, TimeSpan.Zero); + var timeProvider = new FakeTimeProvider(now); + var dbName = _fixture.GetUniqueDatabaseName("timeoutfacet"); + var options = new MongoDbPersistenceOptions + { + ConnectionString = _fixture.MongoDbConnectionString, + DatabaseName = dbName, + }; + var client = MongoClientFactory.Create(options); + var store = new MongoDbTimeoutStore( + client, + options, + NullLogger.Instance, + timeProvider); + + var timeoutId = Guid.NewGuid(); + var processManagerId = Guid.NewGuid(); + var timeout = new TimeoutData + { + Id = timeoutId, + ProcessManagerId = processManagerId, + Destination = "test-destination", + Time = now.AddMinutes(-5), // already due + Locked = false, + LockedBy = Guid.Empty, + Headers = new Dictionary { ["k"] = "v" }, + }; + + await store.InsertTimeoutAsync(timeout); + + var batch = await store.GetTimeoutsBatchAsync(); + + Assert.NotNull(batch); + Assert.Single(batch.DueTimeouts); + Assert.Equal(timeoutId, batch.DueTimeouts[0].Id); + Assert.Equal(processManagerId, batch.DueTimeouts[0].ProcessManagerId); + } +} diff --git a/src/ServiceConnect.EndToEndTests/Persistence/MongoDbTimeoutStoreTests.cs b/src/ServiceConnect.EndToEndTests/Persistence/MongoDbTimeoutStoreTests.cs new file mode 100644 index 000000000..985645d44 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Persistence/MongoDbTimeoutStoreTests.cs @@ -0,0 +1,241 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Microsoft.Extensions.Time.Testing; +using MongoDB.Driver; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Exceptions; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(PersistenceCollection))] +public class MongoDbTimeoutStoreTests(PersistenceFixture fixture) +{ + private readonly PersistenceFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task RemoveDispatchedTimeoutAsync_LeaseAware_ThrowsWhenLeaseIsStale() + { + // A caller that fell asleep and lost its lease (reaper reassigned to another worker) + // must observe the invalidation when it tries to Remove with its stale sessionId. + // A naive DeleteOneAsync would return DeletedCount=0 silently and the caller would + // assume success, leaving a pending timeout behind that another worker now owns — + // the lease-aware path raises ConcurrencyException instead. + var store = BuildStore("leasestale_rm", out var client, out var dbName, out _); + + var timeoutId = Guid.NewGuid(); + await store.InsertTimeoutAsync(new TimeoutData + { + Id = timeoutId, + Time = new DateTimeOffset(2026, 4, 22, 11, 55, 0, TimeSpan.Zero), + }); + + // Claim the row — sessionA now holds the lease. + var batch = await store.GetTimeoutsBatchAsync(); + var claimed = Assert.Single(batch.DueTimeouts); + var sessionA = claimed.LockedBy; + Assert.NotEqual(Guid.Empty, sessionA); + + // Simulate lease reassignment to sessionB via a direct collection write. + var collection = client.GetDatabase(dbName).GetCollection("Timeouts"); + var sessionB = Guid.NewGuid(); + var reassignResult = await collection.UpdateOneAsync( + Builders.Filter.Eq(x => x.Id, timeoutId), + Builders.Update.Set(x => x.LockedBy, sessionB)); + Assert.Equal(1, reassignResult.MatchedCount); + + // sessionA tries to Remove with its now-stale lockOwner. Expect ConcurrencyException. + await Assert.ThrowsAsync(() => + store.RemoveDispatchedTimeoutAsync(timeoutId, lockOwner: sessionA)); + + // And the row must still be present so the rightful owner can still dispatch it. + var surviving = await collection.Find(Builders.Filter.Eq(x => x.Id, timeoutId)) + .FirstOrDefaultAsync(); + Assert.NotNull(surviving); + Assert.Equal(sessionB, surviving.LockedBy); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task ReleaseDispatchedTimeoutAsync_LeaseAware_ThrowsWhenLeaseIsStale() + { + // Same setup as the Remove test but exercising the UpdateOneAsync / MatchedCount + // path. A caller whose lease was reassigned between read and Release must see the + // invalidation rather than quietly clearing Locked/LockedBy (which would cause a + // duplicate dispatch by the worker that now owns the lease). + var store = BuildStore("leasestale_rel", out var client, out var dbName, out _); + + var timeoutId = Guid.NewGuid(); + await store.InsertTimeoutAsync(new TimeoutData + { + Id = timeoutId, + Time = new DateTimeOffset(2026, 4, 22, 11, 55, 0, TimeSpan.Zero), + }); + + var batch = await store.GetTimeoutsBatchAsync(); + var claimed = Assert.Single(batch.DueTimeouts); + var sessionA = claimed.LockedBy; + + var collection = client.GetDatabase(dbName).GetCollection("Timeouts"); + var sessionB = Guid.NewGuid(); + await collection.UpdateOneAsync( + Builders.Filter.Eq(x => x.Id, timeoutId), + Builders.Update.Set(x => x.LockedBy, sessionB)); + + await Assert.ThrowsAsync(() => + store.ReleaseDispatchedTimeoutAsync(timeoutId, lockOwner: sessionA)); + + // LockedBy must still be sessionB; Release from a stale owner must not clear the lease. + var surviving = await collection.Find(Builders.Filter.Eq(x => x.Id, timeoutId)) + .FirstOrDefaultAsync(); + Assert.NotNull(surviving); + Assert.True(surviving.Locked); + Assert.Equal(sessionB, surviving.LockedBy); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task RemoveDispatchedTimeoutAsync_LeaseAware_SucceedsForCorrectOwner() + { + // Happy path: the session that actually holds the lease can still Remove without + // incident and the row is gone afterwards. + var store = BuildStore("leaseok_rm", out var client, out var dbName, out _); + + var timeoutId = Guid.NewGuid(); + await store.InsertTimeoutAsync(new TimeoutData + { + Id = timeoutId, + Time = new DateTimeOffset(2026, 4, 22, 11, 55, 0, TimeSpan.Zero), + }); + + var batch = await store.GetTimeoutsBatchAsync(); + var claimed = Assert.Single(batch.DueTimeouts); + + await store.RemoveDispatchedTimeoutAsync(timeoutId, lockOwner: claimed.LockedBy); + + var collection = client.GetDatabase(dbName).GetCollection("Timeouts"); + var remaining = await collection.Find(Builders.Filter.Eq(x => x.Id, timeoutId)) + .FirstOrDefaultAsync(); + Assert.Null(remaining); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task RemoveDispatchedTimeoutAsync_LeaseAware_ThrowsWhenRowIsUnleased() + { + // Parity guard: the Mongo filter requires Locked == true. An unleased row with + // LockedBy = Guid.Empty must throw ConcurrencyException even if the caller passes + // Guid.Empty as the lockOwner — keeps both persistence backends at parity (the + // InMemory store applies the same !Locked check). Release uses the same filter + // structure so Remove alone is sufficient to anchor the contract in E2E. + var store = BuildStore("leasestale_unleased", out var client, out var dbName, out _); + + var timeoutId = Guid.NewGuid(); + await store.InsertTimeoutAsync(new TimeoutData + { + Id = timeoutId, + Time = new DateTimeOffset(2026, 4, 22, 11, 55, 0, TimeSpan.Zero), + }); + // Do NOT call GetTimeoutsBatchAsync — the row stays unleased (Locked=false, LockedBy=Guid.Empty). + + await Assert.ThrowsAsync(() => + store.RemoveDispatchedTimeoutAsync(timeoutId, lockOwner: Guid.Empty)); + + // Row must still be present — the failed Remove is a true no-op. + var collection = client.GetDatabase(dbName).GetCollection("Timeouts"); + var surviving = await collection.Find(Builders.Filter.Eq(x => x.Id, timeoutId)) + .FirstOrDefaultAsync(); + Assert.NotNull(surviving); + Assert.False(surviving.Locked); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task RemoveDispatchedTimeoutAsync_NullLockOwner_RemovesLeasedRow() + { + // lockOwner == null means unconditional remove: the id-only path must genuinely delete + // the row even when it is leased. Callers reach for the lockOwner overload only when + // they want lease-checked semantics; filtering on LockedBy == Guid.Empty here would + // silently no-op on leased rows. + var store = BuildStore("null_owner_rm", out var client, out var dbName, out _); + + var timeoutId = Guid.NewGuid(); + await store.InsertTimeoutAsync(new TimeoutData + { + Id = timeoutId, + Time = new DateTimeOffset(2026, 4, 22, 11, 55, 0, TimeSpan.Zero), + }); + + // Claim the row so it has a non-Empty LockedBy. A LockedBy == Guid.Empty filter + // would silently no-op here; the id-only path must reach this leased row. + var batch = await store.GetTimeoutsBatchAsync(); + Assert.Single(batch.DueTimeouts); + + await store.RemoveDispatchedTimeoutAsync(timeoutId, lockOwner: null); + + var collection = client.GetDatabase(dbName).GetCollection("Timeouts"); + var remaining = await collection.Find(Builders.Filter.Eq(x => x.Id, timeoutId)) + .FirstOrDefaultAsync(); + Assert.Null(remaining); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task GetTimeoutsBatchAsync_CallerBatchSize_OverridesConfiguredDefault() + { + // Store is configured with a large default (100) but the caller requests only 3. + // The caller-supplied value must win — exactly 3 rows returned from 10 inserted. + var now = new DateTimeOffset(2026, 4, 26, 12, 0, 0, TimeSpan.Zero); + var timeProvider = new FakeTimeProvider(now); + var dbName = _fixture.GetUniqueDatabaseName("caller_batchsize"); + var options = new MongoDbPersistenceOptions + { + ConnectionString = _fixture.MongoDbConnectionString, + DatabaseName = dbName, + TimeoutBatchSize = 100, + }; + var client = MongoClientFactory.Create(options); + var store = new MongoDbTimeoutStore( + client, + options, + NullLogger.Instance, + timeProvider); + + for (int i = 0; i < 10; i++) + { + await store.InsertTimeoutAsync(new TimeoutData + { + Id = Guid.NewGuid(), + Time = timeProvider.GetUtcNow().AddMinutes(-1), + }); + } + + var batch = await store.GetTimeoutsBatchAsync(batchSize: 3); + + Assert.Equal(3, batch.DueTimeouts.Count); + } + + private MongoDbTimeoutStore BuildStore( + string dbPrefix, + out IMongoClient client, + out string dbName, + out FakeTimeProvider timeProvider) + { + var now = new DateTimeOffset(2026, 4, 22, 12, 0, 0, TimeSpan.Zero); + timeProvider = new FakeTimeProvider(now); + dbName = _fixture.GetUniqueDatabaseName(dbPrefix); + var options = new MongoDbPersistenceOptions + { + ConnectionString = _fixture.MongoDbConnectionString, + DatabaseName = dbName, + }; + client = MongoClientFactory.Create(options); + return new MongoDbTimeoutStore( + client, + options, + NullLogger.Instance, + timeProvider); + } +} diff --git a/src/ServiceConnect.EndToEndTests/Persistence/MongoGuidSerializationTests.cs b/src/ServiceConnect.EndToEndTests/Persistence/MongoGuidSerializationTests.cs new file mode 100644 index 000000000..7fe67da2f --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Persistence/MongoGuidSerializationTests.cs @@ -0,0 +1,65 @@ +using MongoDB.Bson; +using MongoDB.Driver; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(PersistenceCollection))] +public class MongoGuidSerializationTests(PersistenceFixture fixture) +{ + private readonly PersistenceFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task InsertAndFilterByGuid_UsesStandardBinarySubtype() + { + // MongoDbPersistenceExtensions.EnsureGuidSerializerRegistered / ModuleInit.Initialize + // must register V3 serializers so stored Guids and filter literals use the same + // binary subtype. Under V2 legacy mode the stored Guid uses CSharpLegacy (subtype 3) + // while filter literals built via `x => x.Id == theGuid` serialize as Standard + // (subtype 4), so the filter silently matches zero documents. With V3 both sides + // use subtype 4 and the round-trip works. + + var dbName = _fixture.GetUniqueDatabaseName("guidserde"); + var options = new MongoDbPersistenceOptions + { + ConnectionString = _fixture.MongoDbConnectionString, + DatabaseName = dbName, + }; + var client = MongoClientFactory.Create(options); + var typedCollection = client.GetDatabase(dbName).GetCollection("Timeouts"); + + var id = Guid.NewGuid(); + var processManagerId = Guid.NewGuid(); + await typedCollection.InsertOneAsync(new TimeoutData + { + Id = id, + ProcessManagerId = processManagerId, + Destination = "guid-test", + Time = DateTimeOffset.UtcNow.AddMinutes(-1), + Locked = false, + LockedBy = Guid.Empty, + Headers = new Dictionary { ["k"] = "v" }, + }); + + // 1) Filter round-trip: the stored Guid must match a filter built from the same Guid. + var hits = await typedCollection.Find(x => x.Id == id).ToListAsync(); + Assert.Single(hits); + Assert.Equal(id, hits[0].Id); + Assert.Equal(processManagerId, hits[0].ProcessManagerId); + + // 2) Subtype inspection: the stored Guid must use subtype 4 (UUID Standard), + // not subtype 3 (CSharpLegacy) — silent V2 fallback stores subtype 3 and + // typed filters would then silently miss. + var rawCollection = client.GetDatabase(dbName).GetCollection("Timeouts"); + var raw = await rawCollection.Find(Builders.Filter.Empty).FirstAsync(); + var idField = raw["_id"].AsBsonBinaryData; + Assert.Equal(BsonBinarySubType.UuidStandard, idField.SubType); + + var processManagerIdField = raw["ProcessManagerId"].AsBsonBinaryData; + Assert.Equal(BsonBinarySubType.UuidStandard, processManagerIdField.SubType); + } +} diff --git a/src/ServiceConnect.EndToEndTests/Persistence/MongoGuidSerializerConflictTests.cs b/src/ServiceConnect.EndToEndTests/Persistence/MongoGuidSerializerConflictTests.cs new file mode 100644 index 000000000..eec6f3698 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Persistence/MongoGuidSerializerConflictTests.cs @@ -0,0 +1,52 @@ +using MongoDB.Bson; +using MongoDB.Bson.Serialization; +using MongoDB.Bson.Serialization.Serializers; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(PersistenceCollection))] +public class MongoGuidSerializerConflictTests(PersistenceFixture fixture) +{ + private readonly PersistenceFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public void EnsureGuidSerializerRegistered_NonStandardRegisteredFirst_ThrowsInvalidOperationException() + { + // BsonSerializer.RegisterSerializer mutates global state. Once ServiceConnect's + // own registration has run anywhere in the test process, we can no longer set up + // the conflict scenario. The test asserts ONLY the error path: if a downstream + // call to RegisterSerializer throws BsonSerializationException, the persistor's + // entry-point must wrap it in InvalidOperationException with an actionable message. + // + // Safer test: simulate the conflict by attempting to register the same Guid + // serializer with a DIFFERENT representation after ServiceConnect's first call. + // If the test runs first in the test process, ServiceConnect's call hasn't yet + // happened — register CSharpLegacy first, then trigger ServiceConnect's path. + try + { + BsonSerializer.RegisterSerializer(typeof(Guid), + new GuidSerializer(GuidRepresentation.CSharpLegacy)); + } + catch (BsonSerializationException) + { + // ServiceConnect (or another component) has already registered Guid; we cannot + // prepare the conflict. Skip — see the unit-test fallback if needed. + return; + } + + var options = new MongoDbPersistenceOptions + { + ConnectionString = _fixture.MongoDbConnectionString, + DatabaseName = _fixture.GetUniqueDatabaseName("guidconflict"), + }; + + var ex = Assert.Throws(() => MongoClientFactory.Create(options)); + + Assert.Contains("GuidRepresentation", ex.Message, StringComparison.OrdinalIgnoreCase); + Assert.IsType(ex.InnerException); + } +} diff --git a/src/ServiceConnect.EndToEndTests/Persistence/TimeoutHeaderRoundtripE2ETests.cs b/src/ServiceConnect.EndToEndTests/Persistence/TimeoutHeaderRoundtripE2ETests.cs new file mode 100644 index 000000000..4c2e3d30c --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Persistence/TimeoutHeaderRoundtripE2ETests.cs @@ -0,0 +1,204 @@ +using System.Globalization; +using System.Text; +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Hosting; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; +using ServiceConnect.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +/// +/// End-to-end guard that custom string-typed headers carried on the initial process-manager +/// message are captured, persisted alongside the timeout, and re-delivered on the scheduled +/// TimeoutMessage. Inbound byte[] header values are eager-decoded to UTF-8 strings at the +/// consume boundary, so all values reach CaptureForStorage as strings and BuildOutgoingHeaders +/// re-emits them verbatim. +/// +[Collection(nameof(MessagingCollection))] +public class TimeoutHeaderRoundtripE2ETests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task TimeoutHeaders_CustomTypedValues_RoundtripFaithfully() + { + var queueName = _fixture.GetUniqueQueueName("timeout-header-roundtrip"); + var correlationId = Guid.NewGuid(); + + var originalGuid = Guid.NewGuid(); + var originalDateTime = new DateTime(2025, 6, 15, 12, 30, 45, DateTimeKind.Utc); + var originalDateTimeOffset = new DateTimeOffset(2025, 6, 15, 12, 30, 45, TimeSpan.FromHours(2)); + var originalBytes = new byte[] { 0xDE, 0xAD, 0xBE, 0xEF, 0xCA, 0xFE }; + + var headersCaptured = new TaskCompletionSource>( + TaskCreationOptions.RunContinuationsAsynchronously); + + var handlerRefs = new List + { + new() + { + HandlerType = typeof(TimeoutHeaderPmHandler), + MessageType = typeof(TestMessage) + }, + new() + { + HandlerType = typeof(TimeoutHeaderPmHandler), + MessageType = typeof(TimeoutMessage) + } + }; + + var host = Host.CreateDefaultBuilder() + .ConfigureServices(services => + { + services.AddLogging(); + services.AddSingleton>(handlerRefs); + services.AddSingleton(headersCaptured); + services.AddTransient, TimeoutHeaderPmHandler>(); + services.AddTransient, TimeoutHeaderPmHandler>(); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureBus(b => + { + b.ScanForMessageHandlers = false; + b.EnableProcessManagerTimeouts = true; + b.ProcessManagerTimeoutPollInterval = TimeSpan.FromMilliseconds(250); + }); + builder.UseInMemoryPersistence(); + }); + }) + .Build(); + + try + { + await host.StartAsync(); + + var bus = host.Services.GetRequiredService(); + + // Send initial message with custom headers carrying typed values as strings. + // Inbound headers are eager-decoded byte[]→UTF-8 string at the consume boundary, + // so the timeout persistence layer re-emits them verbatim (no "base64:" prefix). + var initial = new TestMessage(correlationId) { Content = "schedule-typed-timeout" }; + await bus.SendAsync(initial, new SendOptions + { + EndPoint = queueName, + Headers = new Dictionary + { + // Guid and date/time encoded as standard ISO formats + ["X-Guid"] = originalGuid.ToString("D", CultureInfo.InvariantCulture), + ["X-DateTime"] = originalDateTime.ToString("O", CultureInfo.InvariantCulture), + ["X-DateTimeOffset"] = originalDateTimeOffset.ToString("O", CultureInfo.InvariantCulture), + // byte[] round-trip: sent as base64 string; eager-decoded to string at consume + // boundary; re-emitted verbatim by BuildOutgoingHeaders (no "base64:" prefix) + ["X-Bytes"] = Convert.ToBase64String(originalBytes) + } + }); + + // Wait for the TimeoutMessage handler to capture the re-emitted headers + using var cts = new CancellationTokenSource(TimeSpan.FromSeconds(15)); + cts.Token.Register(() => headersCaptured.TrySetCanceled()); + var capturedHeaders = await headersCaptured.Task; + + // --- Assertions --- + + // Guid value should survive as a parseable string + Assert.True(capturedHeaders.ContainsKey("X-Guid"), "X-Guid header missing"); + var guidRaw = DecodeHeader(capturedHeaders["X-Guid"]); + // May arrive as "base64:..." prefix if stored as byte[] + var guidStr = StripBase64Prefix(guidRaw); + var parsedGuid = Guid.Parse(guidStr); + Assert.Equal(originalGuid, parsedGuid); + + // DateTime value should survive round-trip + Assert.True(capturedHeaders.ContainsKey("X-DateTime"), "X-DateTime header missing"); + var dtRaw = StripBase64Prefix(DecodeHeader(capturedHeaders["X-DateTime"])); + var parsedDt = DateTime.Parse(dtRaw, CultureInfo.InvariantCulture, DateTimeStyles.RoundtripKind); + Assert.Equal(originalDateTime, parsedDt); + + // DateTimeOffset value should survive round-trip + Assert.True(capturedHeaders.ContainsKey("X-DateTimeOffset"), "X-DateTimeOffset header missing"); + var dtoRaw = StripBase64Prefix(DecodeHeader(capturedHeaders["X-DateTimeOffset"])); + var parsedDto = DateTimeOffset.Parse(dtoRaw, CultureInfo.InvariantCulture, DateTimeStyles.RoundtripKind); + Assert.Equal(originalDateTimeOffset, parsedDto); + + // Inbound headers are eager-decoded byte[]→UTF-8 string at the consume boundary + // (RabbitMqConsumerHost.CopyInboundHeaders / InboundMessageProcessor.ProcessAsync), + // so a string-typed AMQP header value reaches CaptureForStorage as a string and + // BuildOutgoingHeaders re-emits it verbatim — no "base64:" prefix transformation. + // The byte[]→"base64:" arm of BuildOutgoingHeaders is still reachable for + // programmatic byte[] sources (e.g. MongoDB BSON binary, direct API callers); see + // TimeoutHeaderPersistenceByteArrayRoundTripTests for the unit-level coverage. + Assert.True(capturedHeaders.ContainsKey("X-Bytes"), "X-Bytes header missing"); + var bytesHeaderRaw = DecodeHeader(capturedHeaders["X-Bytes"]); + // The string we sent — Convert.ToBase64String(originalBytes) — survives verbatim. + // Decoding it via Convert.FromBase64String returns the original bytes. + Assert.Equal(Convert.ToBase64String(originalBytes), bytesHeaderRaw); + var roundTrippedBytes = Convert.FromBase64String(bytesHeaderRaw); + Assert.Equal(originalBytes, roundTrippedBytes); + } + finally + { + await host.StopAsync(); + host.Dispose(); + } + } + + private static string DecodeHeader(object value) => + value is byte[] b ? Encoding.UTF8.GetString(b) : value?.ToString() ?? string.Empty; + + private static string StripBase64Prefix(string value) + { + const string prefix = "base64:"; + return value.StartsWith(prefix, StringComparison.Ordinal) + ? Encoding.UTF8.GetString(Convert.FromBase64String(value[prefix.Length..])) + : value; + } +} + +file class TimeoutHeaderData : IProcessManagerData +{ + public Guid CorrelationId { get; set; } + public bool TimeoutScheduled { get; set; } +} + +file class TimeoutHeaderPmHandler( + TaskCompletionSource> headersCaptured) : + IProcessHandler, + IProcessHandler +{ + private readonly TaskCompletionSource> _headersCaptured = headersCaptured; + + public async Task HandleAsync(TestMessage message, TimeoutHeaderData data, IConsumeContext context, CancellationToken cancellationToken = default) + { + data.CorrelationId = message.CorrelationId; + data.TimeoutScheduled = true; + // Schedule a short timeout; CaptureForStorage picks up the current consume-context + // headers (which include our custom X-Guid, X-DateTime, etc. from the initial send) + await context.Bus.RequestTimeoutAsync(data.CorrelationId, TimeSpan.FromMilliseconds(500)); + } + + public Task HandleAsync(TimeoutMessage message, TimeoutHeaderData data, IConsumeContext context, CancellationToken cancellationToken = default) + { + // Capture the headers re-emitted by BuildOutgoingHeaders for assertion + _headersCaptured.TrySetResult(context.Headers); + return Task.CompletedTask; + } +} diff --git a/src/ServiceConnect.EndToEndTests/ProcessManagers/MongoDbProcessManagerFinderTests.cs b/src/ServiceConnect.EndToEndTests/ProcessManagers/MongoDbProcessManagerFinderTests.cs new file mode 100644 index 000000000..3cdd7753e --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/ProcessManagers/MongoDbProcessManagerFinderTests.cs @@ -0,0 +1,300 @@ +using Microsoft.Extensions.Logging.Abstractions; +using MongoDB.Bson.Serialization; +using MongoDB.Driver; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Helpers; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Exceptions; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(PersistenceCollection))] +public class MongoDbProcessManagerFinderTests(PersistenceFixture fixture) +{ + private readonly PersistenceFixture _fixture = fixture; + + static MongoDbProcessManagerFinderTests() + { + // Register TestData with MongoDB BSON serialization so it can be serialized + // through the IProcessManagerData interface. + // Must be done before any MongoDB operations. + // + // Explicitly pin the CorrelationId serializer to Standard (UUID subtype 4). In + // MongoDB.Driver v3, AutoMap bakes the resolved Guid serializer into the class map + // at registration time using the driver's default — even when a global Standard + // GuidSerializer has been registered via BsonSerializer.RegisterSerializer, AutoMap + // ignores it and falls back to CSharpLegacy (subtype 3). The stored value then + // cannot be matched by a filter lambda that serializes the Guid as Standard. + if (!BsonClassMap.IsClassMapRegistered(typeof(TestData))) + { + BsonClassMap.RegisterClassMap(cm => + { + cm.AutoMap(); + cm.SetIsRootClass(true); + }); + } + } + + private (MongoDbProcessManagerFinder finder, string connectionString, string dbName) CreateFinder() + { + var dbName = _fixture.GetUniqueDatabaseName(); + var connectionString = _fixture.MongoDbConnectionString; + var options = new MongoDbPersistenceOptions + { + ConnectionString = connectionString, + DatabaseName = dbName + }; + var client = MongoClientFactory.Create(options); + var finder = new MongoDbProcessManagerFinder(client, options, NullLogger.Instance); + return (finder, connectionString, dbName); + } + + private static IMongoCollection> GetCollection(string connectionString, string dbName) + { + return new MongoClient(connectionString) + .GetDatabase(dbName) + .GetCollection>(typeof(TestData).FullName); + } + + private static TestProcessManagerPropertyMapper CreateMapper() + { + var mapper = new TestProcessManagerPropertyMapper(); + mapper.ConfigureMapping( + m => m.CorrelationId, + pm => pm.CorrelationId); + return mapper; + } + + [Fact] + [Trait("Category", "Docker")] + public async Task ShouldInsertData() + { + var (finder, connectionString, dbName) = CreateFinder(); + var data = new TestData { CorrelationId = Guid.NewGuid(), Name = "Insert Test" }; + + await finder.InsertDataAsync(data); + + var collection = GetCollection(connectionString, dbName); + var result = collection.Find(Builders>.Filter.Eq(x => x.Data.CorrelationId, data.CorrelationId)).FirstOrDefault(); + Assert.NotNull(result); + Assert.Equal(data.CorrelationId, result.Data.CorrelationId); + Assert.Equal("Insert Test", result.Data.Name); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task ShouldFindData() + { + var (finder, _, _) = CreateFinder(); + var correlationId = Guid.NewGuid(); + var data = new TestData { CorrelationId = correlationId, Name = "Find Test" }; + await finder.InsertDataAsync(data); + + var mapper = CreateMapper(); + var message = new Message(correlationId); + var result = await finder.FindDataAsync(mapper, message); + + Assert.NotNull(result); + Assert.Equal(correlationId, result.Data.CorrelationId); + Assert.Equal("Find Test", result.Data.Name); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task ShouldReturnNullWhenDataNotFound() + { + var (finder, _, _) = CreateFinder(); + + var mapper = CreateMapper(); + var message = new Message(Guid.NewGuid()); + var result = await finder.FindDataAsync(mapper, message); + + Assert.Null(result); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task ShouldUpdateData() + { + var (finder, connectionString, dbName) = CreateFinder(); + var correlationId = Guid.NewGuid(); + var data = new TestData { CorrelationId = correlationId, Name = "Update Test" }; + await finder.InsertDataAsync(data); + + var mapper = CreateMapper(); + var message = new Message(correlationId); + var found = await finder.FindDataAsync(mapper, message); + Assert.NotNull(found); + + found.Data.Name = "Updated"; + await finder.UpdateDataAsync(found); + + var collection = GetCollection(connectionString, dbName); + var updated = collection.Find(Builders>.Filter.Eq(x => x.Data.CorrelationId, correlationId)).FirstOrDefault(); + Assert.NotNull(updated); + Assert.Equal("Updated", updated.Data.Name); + Assert.Equal(2L, updated.Version); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task ShouldThrowWhenUpdatingConcurrently() + { + var (finder, _, _) = CreateFinder(); + var correlationId = Guid.NewGuid(); + var data = new TestData { CorrelationId = correlationId, Name = "Concurrent Test" }; + await finder.InsertDataAsync(data); + + var mapper = CreateMapper(); + var message = new Message(correlationId); + + // Find twice to get two copies at the same version + var first = await finder.FindDataAsync(mapper, message); + var second = await finder.FindDataAsync(mapper, message); + Assert.NotNull(first); + Assert.NotNull(second); + + // Update via the first copy — succeeds + await finder.UpdateDataAsync(first); + + // Update via the second copy — should throw due to version mismatch + await Assert.ThrowsAsync(() => finder.UpdateDataAsync(second)); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task ShouldDeleteData() + { + var (finder, connectionString, dbName) = CreateFinder(); + var correlationId = Guid.NewGuid(); + var data = new TestData { CorrelationId = correlationId, Name = "Delete Test" }; + await finder.InsertDataAsync(data); + + var mapper = CreateMapper(); + var message = new Message(correlationId); + var found = await finder.FindDataAsync(mapper, message); + Assert.NotNull(found); + + await finder.DeleteDataAsync(found); + + var collection = GetCollection(connectionString, dbName); + var result = collection.Find(Builders>.Filter.Eq(x => x.Data.CorrelationId, correlationId)).FirstOrDefault(); + Assert.Null(result); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task ShouldThrowConcurrencyExceptionOnStaleDelete() + { + var (finder, connectionString, dbName) = CreateFinder(); + var correlationId = Guid.NewGuid(); + await finder.InsertDataAsync(new TestData { CorrelationId = correlationId, Name = "v1" }); + + var mapper = CreateMapper(); + var message = new Message(correlationId); + + // Load twice at the same version, then bump the stored version via the first copy. + var stale = await finder.FindDataAsync(mapper, message); + Assert.NotNull(stale); + var current = await finder.FindDataAsync(mapper, message); + Assert.NotNull(current); + + current.Data.Name = "v2"; + await finder.UpdateDataAsync(current); + + // Deleting via the stale copy must fail with ConcurrencyException, not silently succeed. + await Assert.ThrowsAsync(() => finder.DeleteDataAsync(stale)); + + // And the record must still be present. + var collection = GetCollection(connectionString, dbName); + var survivor = collection.Find(Builders>.Filter.Eq(x => x.Data.CorrelationId, correlationId)).FirstOrDefault(); + Assert.NotNull(survivor); + Assert.Equal("v2", survivor.Data.Name); + } + + [Fact] + [Trait("Category", "Docker")] + public async Task ShouldThrowConcurrencyExceptionWhenDeletingMissingRecord() + { + var (finder, _, _) = CreateFinder(); + var stub = new MongoDbData + { + Data = new TestData { CorrelationId = Guid.NewGuid(), Name = "ghost" }, + Version = 1 + }; + + await Assert.ThrowsAsync(() => finder.DeleteDataAsync(stub)); + } + + // Concurrent InsertDataAsync callers must not admit duplicate rows, and concurrent + // index-creation races (codes 85/86) must not bubble up as errors. + [Fact] + [Trait("Category", "Docker")] + public async Task EnsureIndex_ConcurrentCallers_AllSeeIndexBeforeInsertSucceeds() + { + var (finder, connectionString, dbName) = CreateFinder(); + var correlationId = Guid.NewGuid(); + + var tasks = Enumerable.Range(0, 10) + .Select(_ => Task.Run(async () => + { + var pm = new TestData { CorrelationId = correlationId, Name = "A" }; + try + { + await finder.InsertDataAsync(pm); + } + catch (ConcurrencyException) + { + // Expected: unique-index enforcement — only ONE of the 10 succeeds. + } + catch (PersistenceException) + { + // Also acceptable — unique-index violation wrapped as PersistenceException. + } + })) + .ToList(); + + await Task.WhenAll(tasks); + + var collection = GetCollection(connectionString, dbName); + var count = await collection.CountDocumentsAsync( + Builders>.Filter.Eq(x => x.Data.CorrelationId, correlationId)); + Assert.Equal(1, count); + } + + // MongoDbProcessManagerFinder rejects WriteConcern.Unacknowledged at construction. + // Saga state is correctness-sensitive; w:0 silently loses concurrent updates and + // wedges sagas on the next real conflict because the version field advances. + // Operators must use w:1 or higher. + [Fact] + [Trait("Category", "Docker")] + public void Constructor_WithW0_ThrowsInvalidOperationException() + { + var ex = Assert.Throws(() => + { + _ = CreateFinderWithWriteConcern(WriteConcern.Unacknowledged); + }); + + Assert.Contains("WriteConcern", ex.Message); + Assert.Contains("acknowledged", ex.Message, StringComparison.OrdinalIgnoreCase); + } + + private (MongoDbProcessManagerFinder finder, string connectionString, string dbName) CreateFinderWithWriteConcern(WriteConcern writeConcern) + { + var dbName = _fixture.GetUniqueDatabaseName(); + var connectionString = _fixture.MongoDbConnectionString; + var settings = MongoClientSettings.FromConnectionString(connectionString); + settings.WriteConcern = writeConcern; + var client = new MongoClient(settings); + var options = new MongoDbPersistenceOptions + { + ConnectionString = connectionString, + DatabaseName = dbName + }; + var finder = new MongoDbProcessManagerFinder(client, options, NullLogger.Instance); + return (finder, connectionString, dbName); + } +} diff --git a/src/ServiceConnect.EndToEndTests/ProcessManagers/ProcessManagerConcurrencyE2ETests.cs b/src/ServiceConnect.EndToEndTests/ProcessManagers/ProcessManagerConcurrencyE2ETests.cs new file mode 100644 index 000000000..401af62fe --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/ProcessManagers/ProcessManagerConcurrencyE2ETests.cs @@ -0,0 +1,153 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Helpers; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +/// +/// End-to-end guard that two concurrent messages for the same saga correlation id +/// both converge via the optimistic-concurrency retry path. Neither increment may be +/// silently lost to a version conflict — the loser must reload, re-apply, and commit. +/// +[Collection(nameof(PersistenceCollection))] +public class ProcessManagerConcurrencyE2ETests(PersistenceFixture fixture) +{ + private readonly PersistenceFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task ConcurrentMessages_SameSagaId_BothIncrementsApplied() + { + var bothHandled = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var queueName = _fixture.GetUniqueQueueName("pm-concurrency"); + var correlationId = Guid.NewGuid(); + // Gate: the first handler holds here so the second can race past it + var gate = new ManualResetEventSlim(false); + + var handlerRefs = new List + { + new() + { + HandlerType = typeof(ConcurrentIncrementHandler), + MessageType = typeof(TestMessage) + } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>(handlerRefs); + services.AddSingleton(bothHandled); + services.AddSingleton(gate); + services.AddTransient, ConcurrentIncrementHandler>(); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + builder.UseMongoDbPersistence(opts => + { + opts.ConnectionString = _fixture.MongoDbConnectionString; + opts.DatabaseName = _fixture.GetUniqueDatabaseName("pm-concurrency"); + }); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + await bus.StartConsumingAsync(); + + try + { + // Send both messages in quick succession so they race inside the process manager + var msg1 = new TestMessage(correlationId) { Content = "increment-1" }; + var msg2 = new TestMessage(correlationId) { Content = "increment-2" }; + await bus.SendAsync(msg1, new SendOptions { EndPoint = queueName }); + await bus.SendAsync(msg2, new SendOptions { EndPoint = queueName }); + + // Release the gate after a short delay so both handlers can race + _ = Task.Run(async () => + { + await Task.Delay(300); + gate.Set(); + }); + + // Wait for both increments to complete + using var cts = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + cts.Token.Register(() => bothHandled.TrySetCanceled()); + await bothHandled.Task; + + // Allow time for persistence after handler + await Task.Delay(500); + + // Assert: both increments converged; counter == 2 + var finder = provider.GetRequiredService(); + var mapper = new TestProcessManagerPropertyMapper(); + mapper.ConfigureMapping(d => d.CorrelationId, m => m.CorrelationId); + var result = await finder.FindDataAsync(mapper, new TestMessage(correlationId)); + + Assert.NotNull(result); + Assert.Equal(2, result!.Data.Counter); + } + finally + { + gate.Set(); // safety + await bus.DisposeAsync(); + if (provider is IAsyncDisposable ap) + { + await ap.DisposeAsync(); + } + } + } +} + +file class ConcurrentCounterData : IProcessManagerData +{ + public Guid CorrelationId { get; set; } + public int Counter { get; set; } +} + +file class ConcurrentIncrementHandler( + TaskCompletionSource bothHandled, + ManualResetEventSlim gate) : IProcessHandler +{ + private readonly TaskCompletionSource _bothHandled = bothHandled; + private readonly ManualResetEventSlim _gate = gate; + private static int _invokeCount; + + public Task HandleAsync(TestMessage message, ConcurrentCounterData data, IConsumeContext context, CancellationToken cancellationToken = default) + { + data.CorrelationId = message.CorrelationId; + data.Counter++; + + var count = Interlocked.Increment(ref _invokeCount); + + // The first handler blocks to create a window for the second to race + if (count == 1) + { + _gate.Wait(TimeSpan.FromSeconds(5)); + } + + if (count >= 2) + { + _bothHandled.TrySetResult(true); + } + + return Task.CompletedTask; + } +} diff --git a/src/ServiceConnect.EndToEndTests/ProcessManagers/ProcessManagerExceptionTests.cs b/src/ServiceConnect.EndToEndTests/ProcessManagers/ProcessManagerExceptionTests.cs new file mode 100644 index 000000000..789b074bc --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/ProcessManagers/ProcessManagerExceptionTests.cs @@ -0,0 +1,125 @@ +using System.Text; +using Microsoft.Extensions.DependencyInjection; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Helpers; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; +using ServiceConnect.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(MessagingCollection))] +public class ProcessManagerExceptionTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task ProcessManagerHandler_Throws_MessageSentToErrorQueue() + { + // Arrange + var queueName = _fixture.GetUniqueQueueName("pm-exception"); + var errorQueueName = _fixture.GetUniqueQueueName("pm-exception-eq"); + var correlationId = Guid.NewGuid(); + const int maxRetries = 1; + const int retryDelay = 1000; + + var mapper = new TestProcessManagerPropertyMapper(); + mapper.ConfigureMapping(d => d.CorrelationId, m => m.CorrelationId); + + var handlerRefs = new List + { + new() + { + HandlerType = typeof(ThrowingProcessHandler), + MessageType = typeof(TestMessage) + } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>(handlerRefs); + services.AddSingleton(mapper); + services.AddTransient, ThrowingProcessHandler>(); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.MaxRetries = maxRetries; + t.RetryDelay = retryDelay; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => + { + q.QueueName = queueName; + q.ErrorQueueName = errorQueueName; + }); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + builder.UseInMemoryPersistence(); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + await bus.StartConsumingAsync(); + + + try + { + // Act + var msg = new TestMessage(correlationId) { Content = "throw-me" }; + await bus.SendAsync(msg, new SendOptions { EndPoint = queueName }); + + // Poll error queue with raw RabbitMQ — wait long enough for retries + var factory = new ConnectionFactory + { + HostName = _fixture.RabbitMqHostname, + Port = _fixture.RabbitMqPort, + UserName = _fixture.RabbitMqUsername, + Password = _fixture.RabbitMqPassword + }; + await using var conn = await factory.CreateConnectionAsync(); + await using var channel = await conn.CreateChannelAsync(); + + var errorMsg = await TestPolling.WaitForAsync( + async () => await channel.BasicGetAsync(errorQueueName, autoAck: true), + timeout: TimeSpan.FromSeconds(30)); + + // Assert + Assert.NotNull(errorMsg); + + var headers = errorMsg.BasicProperties.Headers!; + Assert.True(headers.ContainsKey("Exception")); + var exceptionJson = Encoding.UTF8.GetString((byte[])headers["Exception"]!); + Assert.Contains("PM handler exploded", exceptionJson); + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + } +} + +file class ThrowingProcessHandler : IProcessHandler +{ + public Task HandleAsync(TestMessage message, TestProcessData data, IConsumeContext context, CancellationToken cancellationToken = default) + { + throw new InvalidOperationException("PM handler exploded"); + } +} diff --git a/src/ServiceConnect.EndToEndTests/ProcessManagers/ProcessManagerMongoDbTests.cs b/src/ServiceConnect.EndToEndTests/ProcessManagers/ProcessManagerMongoDbTests.cs new file mode 100644 index 000000000..05b42689b --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/ProcessManagers/ProcessManagerMongoDbTests.cs @@ -0,0 +1,124 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Helpers; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(PersistenceCollection))] +public class ProcessManagerMongoDbTests(PersistenceFixture fixture) +{ + private readonly PersistenceFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task ProcessManager_TwoMessages_StateUpdatedCorrectly_MongoDb() + { + // Arrange + var secondHandled = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var queueName = _fixture.GetUniqueQueueName("pm"); + var correlationId = Guid.NewGuid(); + + var handlerRefs = new List + { + new() + { + HandlerType = typeof(MongoCounterProcessHandler), + MessageType = typeof(TestMessage) + } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>(handlerRefs); + services.AddSingleton(secondHandled); + services.AddTransient, MongoCounterProcessHandler>(); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + builder.UseMongoDbPersistence(opts => + { + opts.ConnectionString = _fixture.MongoDbConnectionString; + opts.DatabaseName = _fixture.GetUniqueDatabaseName("pm"); + }); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + await bus.StartConsumingAsync(); + + + try + { + // Act: send first message + var msg1 = new TestMessage(correlationId) { Content = "first" }; + await bus.SendAsync(msg1, new SendOptions { EndPoint = queueName }); + + // Act: send second message with same CorrelationId + var msg2 = new TestMessage(correlationId) { Content = "second" }; + await bus.SendAsync(msg2, new SendOptions { EndPoint = queueName }); + + // Wait for second handler invocation + var cts = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + cts.Token.Register(() => secondHandled.TrySetCanceled()); + await secondHandled.Task; + + // Allow time for the ProcessManagerProcessor to persist after handler completes + await Task.Delay(500); + + // Assert: verify persisted state + var finder = provider.GetRequiredService(); + var mapper = new TestProcessManagerPropertyMapper(); + mapper.ConfigureMapping(d => d.CorrelationId, m => m.CorrelationId); + var result = await finder.FindDataAsync(mapper, new TestMessage(correlationId)); + + Assert.NotNull(result); + Assert.Equal(2, result.Data.Counter); + Assert.Equal("second", result.Data.LastContent); + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + } +} + +file class MongoCounterProcessHandler(TaskCompletionSource secondHandled) : IProcessHandler +{ + private readonly TaskCompletionSource _secondHandled = secondHandled; + + public Task HandleAsync(TestMessage message, TestProcessData data, IConsumeContext context, CancellationToken cancellationToken = default) + { + data.Counter++; + data.LastContent = message.Content; + if (data.Counter >= 2) + { + _secondHandled.TrySetResult(true); + } + + return Task.CompletedTask; + } +} diff --git a/src/ServiceConnect.EndToEndTests/ProcessManagers/ProcessManagerMultiMessageLifecycleE2ETests.cs b/src/ServiceConnect.EndToEndTests/ProcessManagers/ProcessManagerMultiMessageLifecycleE2ETests.cs new file mode 100644 index 000000000..7796bb5e5 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/ProcessManagers/ProcessManagerMultiMessageLifecycleE2ETests.cs @@ -0,0 +1,165 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Helpers; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; +using ServiceConnect.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(IsolatedCollection))] +public class ProcessManagerMultiMessageLifecycleE2ETests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task ProcessManager_MultipleMessageTypes_SameLifecycle_StatePersistsAcrossStartResumeFinish() + { + var finished = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var queueName = _fixture.GetUniqueQueueName("pm-lifecycle"); + var correlationId = Guid.NewGuid(); + + var handlerRefs = new List + { + new() + { + HandlerType = typeof(LifecycleProcessHandler), + MessageType = typeof(ProcessStartedMessage) + }, + new() + { + HandlerType = typeof(LifecycleProcessHandler), + MessageType = typeof(ProcessResumedMessage) + }, + new() + { + HandlerType = typeof(LifecycleProcessHandler), + MessageType = typeof(ProcessFinishedMessage) + } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>(handlerRefs); + services.AddSingleton(finished); + services.AddTransient, LifecycleProcessHandler>(); + services.AddTransient, LifecycleProcessHandler>(); + services.AddTransient, LifecycleProcessHandler>(); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + builder.UseInMemoryPersistence(); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + await bus.StartConsumingAsync(); + + try + { + await bus.SendAsync(new ProcessStartedMessage(correlationId) { StepName = "start" }, new SendOptions { EndPoint = queueName }); + await bus.SendAsync(new ProcessResumedMessage(correlationId) { StepName = "resume" }, new SendOptions { EndPoint = queueName }); + await bus.SendAsync(new ProcessFinishedMessage(correlationId) { StepName = "finish" }, new SendOptions { EndPoint = queueName }); + + using var cts = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + cts.Token.Register(() => finished.TrySetCanceled()); + await finished.Task; + + await Task.Delay(500); + + var finder = provider.GetRequiredService(); + var mapper = new TestProcessManagerPropertyMapper(); + mapper.ConfigureMapping(d => d.CorrelationId, m => m.CorrelationId); + mapper.ConfigureMapping(d => d.CorrelationId, m => m.CorrelationId); + mapper.ConfigureMapping(d => d.CorrelationId, m => m.CorrelationId); + var result = await finder.FindDataAsync(mapper, new ProcessFinishedMessage(correlationId)); + + Assert.NotNull(result); + Assert.Equal(3, result!.Data.HandledCount); + Assert.Equal("start", result.Data.StartStep); + Assert.Equal("resume", result.Data.ResumeStep); + Assert.Equal("finish", result.Data.FinishStep); + Assert.True(result.Data.IsFinished); + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + } +} + +file class LifecycleProcessData : IProcessManagerData +{ + public Guid CorrelationId { get; set; } + public int HandledCount { get; set; } + public string StartStep { get; set; } = string.Empty; + public string ResumeStep { get; set; } = string.Empty; + public string FinishStep { get; set; } = string.Empty; + public bool IsFinished { get; set; } +} + +file sealed class ProcessStartedMessage(Guid correlationId) : Message(correlationId) +{ + public string StepName { get; set; } = string.Empty; +} + +file sealed class ProcessResumedMessage(Guid correlationId) : Message(correlationId) +{ + public string StepName { get; set; } = string.Empty; +} + +file sealed class ProcessFinishedMessage(Guid correlationId) : Message(correlationId) +{ + public string StepName { get; set; } = string.Empty; +} + +file class LifecycleProcessHandler(TaskCompletionSource finished) : + IProcessHandler, + IProcessHandler, + IProcessHandler +{ + private readonly TaskCompletionSource _finished = finished; + + public Task HandleAsync(ProcessStartedMessage message, LifecycleProcessData data, IConsumeContext context, CancellationToken cancellationToken = default) + { + data.HandledCount++; + data.StartStep = message.StepName; + return Task.CompletedTask; + } + + public Task HandleAsync(ProcessResumedMessage message, LifecycleProcessData data, IConsumeContext context, CancellationToken cancellationToken = default) + { + data.HandledCount++; + data.ResumeStep = message.StepName; + return Task.CompletedTask; + } + + public Task HandleAsync(ProcessFinishedMessage message, LifecycleProcessData data, IConsumeContext context, CancellationToken cancellationToken = default) + { + data.HandledCount++; + data.FinishStep = message.StepName; + data.IsFinished = true; + _finished.TrySetResult(true); + return Task.CompletedTask; + } +} diff --git a/src/ServiceConnect.EndToEndTests/ProcessManagers/ProcessManagerTests.cs b/src/ServiceConnect.EndToEndTests/ProcessManagers/ProcessManagerTests.cs new file mode 100644 index 000000000..25aecd126 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/ProcessManagers/ProcessManagerTests.cs @@ -0,0 +1,120 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Helpers; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; +using ServiceConnect.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(MessagingCollection))] +public class ProcessManagerTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task ProcessManager_TwoMessages_StateUpdatedCorrectly_InMemory() + { + // Arrange + var secondHandled = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var queueName = _fixture.GetUniqueQueueName("pm"); + var correlationId = Guid.NewGuid(); + + var handlerRefs = new List + { + new() + { + HandlerType = typeof(CounterProcessHandler), + MessageType = typeof(TestMessage) + } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>(handlerRefs); + services.AddSingleton(secondHandled); + services.AddTransient, CounterProcessHandler>(); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + builder.UseInMemoryPersistence(); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + await bus.StartConsumingAsync(); + + + try + { + // Act: send first message + var msg1 = new TestMessage(correlationId) { Content = "first" }; + await bus.SendAsync(msg1, new SendOptions { EndPoint = queueName }); + + // Act: send second message with same CorrelationId + var msg2 = new TestMessage(correlationId) { Content = "second" }; + await bus.SendAsync(msg2, new SendOptions { EndPoint = queueName }); + + // Wait for second handler invocation + var cts = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + cts.Token.Register(() => secondHandled.TrySetCanceled()); + await secondHandled.Task; + + // Allow time for the ProcessManagerProcessor to persist after handler completes + await Task.Delay(500); + + // Assert: verify persisted state + var finder = provider.GetRequiredService(); + var mapper = new TestProcessManagerPropertyMapper(); + mapper.ConfigureMapping(d => d.CorrelationId, m => m.CorrelationId); + var result = await finder.FindDataAsync(mapper, new TestMessage(correlationId)); + + Assert.NotNull(result); + Assert.Equal(2, result.Data.Counter); + Assert.Equal("second", result.Data.LastContent); + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + } +} + +file class CounterProcessHandler(TaskCompletionSource secondHandled) : IProcessHandler +{ + private readonly TaskCompletionSource _secondHandled = secondHandled; + + public Task HandleAsync(TestMessage message, TestProcessData data, IConsumeContext context, CancellationToken cancellationToken = default) + { + data.Counter++; + data.LastContent = message.Content; + if (data.Counter >= 2) + { + _secondHandled.TrySetResult(true); + } + + return Task.CompletedTask; + } +} diff --git a/src/ServiceConnect.EndToEndTests/ProcessManagers/ProcessManagerTimeoutTests.cs b/src/ServiceConnect.EndToEndTests/ProcessManagers/ProcessManagerTimeoutTests.cs new file mode 100644 index 000000000..6c4d4a153 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/ProcessManagers/ProcessManagerTimeoutTests.cs @@ -0,0 +1,133 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Hosting; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Helpers; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; +using ServiceConnect.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(MessagingCollection))] +public class ProcessManagerTimeoutTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task ProcessManagerTimeout_SchedulesAndHandlesTimeoutMessage() + { + var queueName = _fixture.GetUniqueQueueName("pm-timeout"); + var correlationId = Guid.NewGuid(); + var timeoutHandled = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + + var handlerRefs = new List + { + new() + { + HandlerType = typeof(TimeoutProcessHandler), + MessageType = typeof(TestMessage) + }, + new() + { + HandlerType = typeof(TimeoutProcessHandler), + MessageType = typeof(TimeoutMessage) + } + }; + + var host = Host.CreateDefaultBuilder() + .ConfigureServices(services => + { + services.AddLogging(); + services.AddSingleton>(handlerRefs); + services.AddSingleton(timeoutHandled); + services.AddTransient, TimeoutProcessHandler>(); + services.AddTransient, TimeoutProcessHandler>(); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureBus(b => + { + b.ScanForMessageHandlers = false; + b.EnableProcessManagerTimeouts = true; + b.ProcessManagerTimeoutPollInterval = TimeSpan.FromMilliseconds(100); + }); + builder.UseInMemoryPersistence(); + }); + }) + .Build(); + + try + { + await host.StartAsync(); + + var bus = host.Services.GetRequiredService(); + var initial = new TestMessage(correlationId) { Content = "schedule-timeout" }; + await bus.SendAsync(initial, new SendOptions { EndPoint = queueName }); + + var cts = new CancellationTokenSource(TimeSpan.FromSeconds(15)); + cts.Token.Register(() => timeoutHandled.TrySetCanceled()); + var signalled = await timeoutHandled.Task; + + Assert.True(signalled); + + await Task.Delay(500); + + var finder = host.Services.GetRequiredService(); + var mapper = new TestProcessManagerPropertyMapper(); + mapper.ConfigureMapping(d => d.CorrelationId, m => m.CorrelationId); + var result = await finder.FindDataAsync(mapper, new TestMessage(correlationId)); + + Assert.NotNull(result); + Assert.True(result!.Data.TimeoutHandled); + } + finally + { + await host.StopAsync(); + host.Dispose(); + } + } +} + +file class TimeoutProcessData : IProcessManagerData +{ + public Guid CorrelationId { get; set; } + public bool TimeoutRequested { get; set; } + public bool TimeoutHandled { get; set; } +} + +file class TimeoutProcessHandler(TaskCompletionSource timeoutHandled) : + IProcessHandler, + IProcessHandler +{ + private readonly TaskCompletionSource _timeoutHandled = timeoutHandled; + + public async Task HandleAsync(TestMessage message, TimeoutProcessData data, IConsumeContext context, CancellationToken cancellationToken = default) + { + data.CorrelationId = message.CorrelationId; + data.TimeoutRequested = true; + await context.Bus.RequestTimeoutAsync(data.CorrelationId, TimeSpan.FromMilliseconds(500)); + } + + public Task HandleAsync(TimeoutMessage message, TimeoutProcessData data, IConsumeContext context, CancellationToken cancellationToken = default) + { + data.TimeoutHandled = true; + _timeoutHandled.TrySetResult(true); + return Task.CompletedTask; + } +} diff --git a/src/ServiceConnect.EndToEndTests/RabbitMq/CompetingConsumersTests.cs b/src/ServiceConnect.EndToEndTests/RabbitMq/CompetingConsumersTests.cs new file mode 100644 index 000000000..6ff1e1cc2 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/RabbitMq/CompetingConsumersTests.cs @@ -0,0 +1,139 @@ +using System.Collections.Concurrent; +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(MessagingCollection))] +public class CompetingConsumersTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task Send_TwoConsumersSameQueue_EachMessageDeliveredOnce() + { + // Arrange + var queueName = _fixture.GetUniqueQueueName("competing"); + var allReceived = new ConcurrentBag(); + var allDone = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + const int messageCount = 10; + int totalReceived = 0; + + (IBus bus, ServiceProvider provider) CreateConsumerBus() + { + var handlerRefs = new List + { + new() { HandlerType = typeof(CallbackHandler), MessageType = typeof(TestMessage) } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>(handlerRefs); + services.AddTransient>(_ => + new CallbackHandler(msg => + { + allReceived.Add(msg.Content); + if (Interlocked.Increment(ref totalReceived) >= messageCount) + { + allDone.TrySetResult(true); + } + })); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var provider = services.BuildServiceProvider(); + return (provider.GetRequiredService(), provider); + } + + var (bus1, consumerProvider1) = CreateConsumerBus(); + var (bus2, consumerProvider2) = CreateConsumerBus(); + + await bus1.StartConsumingAsync(); + await bus2.StartConsumingAsync(); + + + // We need a separate producer bus (its own queue) to send messages + var producerServices = new ServiceCollection(); + producerServices.AddLogging(); + producerServices.AddSingleton>([]); + producerServices.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = _fixture.GetUniqueQueueName("competing-producer")); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + var producerProvider = producerServices.BuildServiceProvider(); + var producerBus = producerProvider.GetRequiredService(); + + try + { + // Act: send N messages to the shared queue + for (int i = 0; i < messageCount; i++) + { + await producerBus.SendAsync( + new TestMessage(Guid.NewGuid()) { Content = $"msg-{i}" }, + new SendOptions { EndPoint = queueName }); + } + + // Assert: wait for all messages to be received + using var cts = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + cts.Token.Register(() => allDone.TrySetCanceled()); + await allDone.Task; + + // All messages received exactly once (no duplicates, no missing) + var sorted = allReceived.OrderBy(x => x).ToList(); + var expected = Enumerable.Range(0, messageCount).Select(i => $"msg-{i}").OrderBy(x => x).ToList(); + Assert.Equal(expected, sorted); + } + finally + { + await bus1.DisposeAsync(); + await bus2.DisposeAsync(); + await producerBus.DisposeAsync(); + if (consumerProvider1 is IAsyncDisposable asyncConsumerProvider1) + { + await asyncConsumerProvider1.DisposeAsync(); + } + + if (consumerProvider2 is IAsyncDisposable asyncConsumerProvider2) + { + await asyncConsumerProvider2.DisposeAsync(); + } + + if (producerProvider is IAsyncDisposable asyncProducerProvider) + { + await asyncProducerProvider.DisposeAsync(); + } + } + } +} diff --git a/src/ServiceConnect.EndToEndTests/RabbitMq/ConsumerBrokerCancelE2ETests.cs b/src/ServiceConnect.EndToEndTests/RabbitMq/ConsumerBrokerCancelE2ETests.cs new file mode 100644 index 000000000..9fcdf078a --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/RabbitMq/ConsumerBrokerCancelE2ETests.cs @@ -0,0 +1,105 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Diagnostics.HealthChecks; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.HealthChecks; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests.RabbitMq; + +/// +/// Verifies the broker-cancel contract: when the broker sends basic.cancel (triggered here +/// by deleting the consumer queue out-of-band), the consumer's IsCancelledByBroker flag +/// flips, Bus.IsConsuming becomes false, and BusConsumingHealthCheck reports Unhealthy — +/// all within 5 seconds, and without any explicit StopConsumingAsync call from the application. +/// +[Collection(nameof(IsolatedCollection))] +public sealed class ConsumerBrokerCancelE2ETests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task DeleteQueueWhileConsuming_BusConsumingHealthCheckReportsUnhealthyWithin5s() + { + var queueName = _fixture.GetUniqueQueueName("broker-cancel"); + + // Wire up a bus with a consumer but no message handlers — we only need the + // consume channel open so the broker can deliver a basic.cancel against it. + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>([]); + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 1); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + await using var sp = services.BuildServiceProvider(); + var bus = sp.GetRequiredService(); + + await bus.StartConsumingAsync(); + + try + { + // The health check must report Healthy before we trigger the broker cancel. + var healthCheck = new BusConsumingHealthCheck(bus); + var registration = new HealthCheckRegistration("test", healthCheck, HealthStatus.Unhealthy, null); + var context = new HealthCheckContext { Registration = registration }; + + var initial = await healthCheck.CheckHealthAsync(context); + Assert.Equal(HealthStatus.Healthy, initial.Status); + + // Delete the queue out-of-band on a separate connection. The broker will send + // basic.cancel to the consumer connection, setting IsCancelledByBroker = true. + var factory = new ConnectionFactory + { + HostName = _fixture.RabbitMqHostname, + Port = _fixture.RabbitMqPort, + UserName = _fixture.RabbitMqUsername, + Password = _fixture.RabbitMqPassword, + }; + await using var sideConn = await factory.CreateConnectionAsync(); + await using var sideChannel = await sideConn.CreateChannelAsync(); + await sideChannel.QueueDeleteAsync(queueName, ifUnused: false, ifEmpty: false); + + // Poll the health check until it flips to Unhealthy, or until the 5-second deadline. + // The basic.cancel is async from the broker's side — give it time to propagate. + HealthStatus status = HealthStatus.Healthy; + var deadline = DateTimeOffset.UtcNow.AddSeconds(5); + while (DateTimeOffset.UtcNow < deadline) + { + var probe = await healthCheck.CheckHealthAsync(context); + status = probe.Status; + if (status != HealthStatus.Healthy) + { + break; + } + + await Task.Delay(100); + } + + Assert.Equal(HealthStatus.Unhealthy, status); + } + finally + { + // Bus.StopConsumingAsync throws InvalidOperationException after a broker cancel + // because _stopped is set on the DisposedAsync path when the consumer is gone. + // Dispose directly so cleanup is best-effort. + await bus.DisposeAsync(); + } + } +} diff --git a/src/ServiceConnect.EndToEndTests/RabbitMq/ConsumerRestartE2ETests.cs b/src/ServiceConnect.EndToEndTests/RabbitMq/ConsumerRestartE2ETests.cs new file mode 100644 index 000000000..c780d80d7 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/RabbitMq/ConsumerRestartE2ETests.cs @@ -0,0 +1,179 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +/// +/// End-to-end smoke that a freshly-built Consumer over a queue previously used +/// (and torn down) by another Consumer still consumes cleanly. Same-instance +/// Dispose→Start field-state invariants (owned-connection nulling, client-bag +/// clearing) are guarded directly by the unit suite; this exercises the +/// outward-visible bus shape across lifecycles on shared broker state. +/// +[Collection(nameof(MessagingCollection))] +public class ConsumerRestartE2ETests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task FreshConsumerOnPreviouslyUsedQueue_DeliversAfterFirstDisposed() + { + var consumerQueue = _fixture.GetUniqueQueueName("consumer-restart"); + var producerQueue = _fixture.GetUniqueQueueName("consumer-restart-producer"); + + var firstReceived = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var secondReceived = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var phase = 0; // 0 = first lifecycle, 1 = second lifecycle + + var handlerRefs = new List + { + new() { HandlerType = typeof(RestartCheckHandler), MessageType = typeof(TestMessage) } + }; + + IServiceProvider BuildConsumerProvider() + { + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>(handlerRefs); + services.AddSingleton(new PhaseHolder(() => phase)); + // Capture TCS references via factory lambda to avoid DI type-ambiguity + // (two singletons of the same type cannot be injected into distinct constructor + // parameters — DI resolves one type to one instance for positional injection). + services.AddTransient>(sp => + new RestartCheckHandler( + firstReceived, + secondReceived, + sp.GetRequiredService())); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = consumerQueue); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + return services.BuildServiceProvider(); + } + + var producerServices = new ServiceCollection(); + producerServices.AddLogging(); + producerServices.AddSingleton>([]); + producerServices.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = producerQueue); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var producerProvider = producerServices.BuildServiceProvider(); + var producerBus = producerProvider.GetRequiredService(); + + // First lifecycle: start consumer, send message, receive it, dispose. + var firstProvider = BuildConsumerProvider(); + var firstBus = firstProvider.GetRequiredService(); + try + { + await firstBus.StartConsumingAsync(); + await producerBus.SendAsync(new TestMessage(Guid.NewGuid()) { Content = "first" }, new SendOptions { EndPoint = consumerQueue }); + using var cts1 = new CancellationTokenSource(TimeSpan.FromSeconds(15)); + cts1.Token.Register(() => firstReceived.TrySetCanceled()); + var first = await firstReceived.Task; + Assert.Equal("first", first.Content); + } + finally + { + await firstBus.DisposeAsync(); + if (firstProvider is IAsyncDisposable a) + { + await a.DisposeAsync(); + } + } + + // Second lifecycle: rebuild the bus and start a fresh consumer on the same queue, + // verify message delivery. The first lifecycle's DisposeAsync must release broker + // resources cleanly so a new bus on the same queue can stand up and consume without + // colliding with leftover topology, leases, or pending unacked deliveries. + phase = 1; + var secondProvider = BuildConsumerProvider(); + var secondBus = secondProvider.GetRequiredService(); + try + { + await secondBus.StartConsumingAsync(); + await producerBus.SendAsync(new TestMessage(Guid.NewGuid()) { Content = "second" }, new SendOptions { EndPoint = consumerQueue }); + using var cts2 = new CancellationTokenSource(TimeSpan.FromSeconds(15)); + cts2.Token.Register(() => secondReceived.TrySetCanceled()); + var second = await secondReceived.Task; + Assert.Equal("second", second.Content); + } + finally + { + await secondBus.DisposeAsync(); + if (secondProvider is IAsyncDisposable b) + { + await b.DisposeAsync(); + } + + await producerBus.DisposeAsync(); + if (producerProvider is IAsyncDisposable c) + { + await c.DisposeAsync(); + } + } + } +} + +file sealed class PhaseHolder(Func phase) +{ + private readonly Func _phase = phase; + + public int Current => _phase(); +} + +file sealed class RestartCheckHandler( + TaskCompletionSource first, + TaskCompletionSource second, + PhaseHolder phase) : IMessageHandler +{ + private readonly TaskCompletionSource _first = first; + private readonly TaskCompletionSource _second = second; + private readonly PhaseHolder _phase = phase; + + public Task HandleAsync(TestMessage message, IConsumeContext context, CancellationToken cancellationToken = default) + { + if (_phase.Current == 0) + { + _first.TrySetResult(message); + } + else + { + _second.TrySetResult(message); + } + + return Task.CompletedTask; + } +} diff --git a/src/ServiceConnect.EndToEndTests/RabbitMq/PrefetchCountTests.cs b/src/ServiceConnect.EndToEndTests/RabbitMq/PrefetchCountTests.cs new file mode 100644 index 000000000..322f27ae6 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/RabbitMq/PrefetchCountTests.cs @@ -0,0 +1,124 @@ +using System.Collections.Concurrent; +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(MessagingCollection))] +public class PrefetchCountTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task PrefetchCount1_SlowHandler_ProcessesOneAtATime() + { + // Arrange + const int messageCount = 3; + var concurrencyLog = new ConcurrentBag(); + var allDone = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var queueName = _fixture.GetUniqueQueueName("prefetch"); + + // Shared state passed into each handler instance + var sharedState = new SlowHandlerState(concurrencyLog, messageCount, allDone); + + var handlerReferences = new List + { + new() + { + HandlerType = typeof(SlowHandler), + MessageType = typeof(TestMessage) + } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>(handlerReferences); + services.AddTransient>(_ => new SlowHandler(sharedState)); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.PrefetchCount = 1; + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + await bus.StartConsumingAsync(); + + + try + { + // Act: publish 3 messages + for (int i = 0; i < messageCount; i++) + { + await bus.PublishAsync(new TestMessage(Guid.NewGuid()) { Content = $"msg-{i}" }); + } + + // Wait for all messages to be processed (up to 30 seconds) + var cts = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + cts.Token.Register(() => allDone.TrySetCanceled()); + + await allDone.Task; + + // Assert: at no point were more than 1 message being handled concurrently + Assert.NotEmpty(concurrencyLog); + Assert.All(concurrencyLog, c => Assert.Equal(1, c)); + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + } +} + +file class SlowHandlerState(ConcurrentBag concurrencyLog, int messageCount, TaskCompletionSource allDone) +{ + public readonly ConcurrentBag ConcurrencyLog = concurrencyLog; + public readonly int MessageCount = messageCount; + public readonly TaskCompletionSource AllDone = allDone; + public int CurrentConcurrency; + public int ProcessedCount; +} + +file class SlowHandler(SlowHandlerState state) : IMessageHandler +{ + private readonly SlowHandlerState _state = state; + + public async Task HandleAsync(TestMessage message, IConsumeContext context, CancellationToken cancellationToken = default) + { + var concurrency = Interlocked.Increment(ref _state.CurrentConcurrency); + _state.ConcurrencyLog.Add(concurrency); + + await Task.Delay(500); // Simulate slow processing to test prefetch behavior + + Interlocked.Decrement(ref _state.CurrentConcurrency); + + var processed = Interlocked.Increment(ref _state.ProcessedCount); + if (processed >= _state.MessageCount) + { + _state.AllDone.TrySetResult(true); + } + } +} diff --git a/src/ServiceConnect.EndToEndTests/RabbitMq/PriorityQueueTests.cs b/src/ServiceConnect.EndToEndTests/RabbitMq/PriorityQueueTests.cs new file mode 100644 index 000000000..cfc038237 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/RabbitMq/PriorityQueueTests.cs @@ -0,0 +1,161 @@ +using System.Collections.Concurrent; +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(IsolatedCollection))] +public class PriorityQueueTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task Send_MessagesWithDifferentPriorities_HighPriorityConsumedFirst() + { + // Arrange + var queueName = _fixture.GetUniqueQueueName("priority"); + var receivedPriorities = new ConcurrentQueue(); + const int messageCount = 6; + var allReceived = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + int totalReceived = 0; + + // Pre-declare the priority queue using raw RabbitMQ.Client before consumer starts, + // because RabbitMQ only guarantees priority ordering when messages are already queued. + var connFactory = new global::RabbitMQ.Client.ConnectionFactory + { + HostName = _fixture.RabbitMqHostname, + Port = _fixture.RabbitMqPort, + UserName = _fixture.RabbitMqUsername, + Password = _fixture.RabbitMqPassword + }; + await using var rawConn = await connFactory.CreateConnectionAsync(); + await using var rawModel = await rawConn.CreateChannelAsync(); + await rawModel.QueueDeclareAsync( + queue: queueName, + durable: true, + exclusive: false, + autoDelete: false, + arguments: new Dictionary { { "x-max-priority", 10 } }); + + // Set up producer bus (its own queue, only sends) + var producerServices = new ServiceCollection(); + producerServices.AddLogging(); + producerServices.AddSingleton>([]); + producerServices.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = _fixture.GetUniqueQueueName("priority-producer")); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + var producerProvider = producerServices.BuildServiceProvider(); + var producerBus = producerProvider.GetRequiredService(); + + // Send 6 messages with alternating priorities: 1, 10, 1, 10, 1, 10 + // All messages are queued BEFORE the consumer starts to ensure RabbitMQ priority ordering. + int[] sendPriorities = [1, 10, 1, 10, 1, 10]; + for (int i = 0; i < messageCount; i++) + { + var msg = new PriorityMessage(Guid.NewGuid()) + { + Priority = sendPriorities[i] + }; + await producerBus.SendAsync(msg, new SendOptions + { + EndPoint = queueName, + Headers = new Dictionary { ["Priority"] = sendPriorities[i].ToString() } + }); + } + + + + // Set up consumer bus AFTER all messages are queued + var handlerRefs = new List + { + new() { + HandlerType = typeof(CallbackHandler), + MessageType = typeof(PriorityMessage) + } + }; + + var consumerServices = new ServiceCollection(); + consumerServices.AddLogging(); + consumerServices.AddSingleton>(handlerRefs); + consumerServices.AddTransient>(_ => + new CallbackHandler(msg => + { + receivedPriorities.Enqueue(msg.Priority); + if (Interlocked.Increment(ref totalReceived) >= messageCount) + { + allReceived.TrySetResult(true); + } + })); + + consumerServices.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SetClientSetting("Arguments", new Dictionary { { "x-max-priority", 10 } }); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var consumerProvider = consumerServices.BuildServiceProvider(); + var consumerBus = consumerProvider.GetRequiredService(); + + try + { + await consumerBus.StartConsumingAsync(); + + // Assert: wait up to 30 seconds for all messages to be received + using var cts = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + cts.Token.Register(() => allReceived.TrySetCanceled()); + await allReceived.Task; + + // All priority-10 messages should come before all priority-1 messages + var ordered = receivedPriorities.ToArray(); + Assert.Equal(messageCount, ordered.Length); + + // Verify descending priority order: all high-priority first, then all low-priority + var expectedOrder = ordered.OrderByDescending(p => p).ToArray(); + Assert.Equal(expectedOrder, ordered); + } + finally + { + await consumerBus.DisposeAsync(); + await producerBus.DisposeAsync(); + if (consumerProvider is IAsyncDisposable asyncConsumerProvider) + { + await asyncConsumerProvider.DisposeAsync(); + } + + if (producerProvider is IAsyncDisposable asyncProducerProvider) + { + await asyncProducerProvider.DisposeAsync(); + } + } + } +} diff --git a/src/ServiceConnect.EndToEndTests/RabbitMq/ProducerDisposeConcurrencyE2ETests.cs b/src/ServiceConnect.EndToEndTests/RabbitMq/ProducerDisposeConcurrencyE2ETests.cs new file mode 100644 index 000000000..c6abd4519 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/RabbitMq/ProducerDisposeConcurrencyE2ETests.cs @@ -0,0 +1,117 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +/// +/// End-to-end guard that DisposeAsync is safe to call while concurrent publish loops +/// are still in flight. Dispose must not produce SemaphoreFullException, unhandled +/// task exceptions, or crash the process. ObjectDisposedException and +/// OperationCanceledException on in-flight publishes are acceptable but must be +/// collected rather than escape unobserved. +/// +[Collection(nameof(MessagingCollection))] +public class ProducerDisposeConcurrencyE2ETests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task ConcurrentPublishLoops_FollowedByDispose_NoUnhandledExceptions() + { + const int publisherCount = 8; + + var queueName = _fixture.GetUniqueQueueName("dispose-concurrency"); + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>([]); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + var strayExceptions = new System.Collections.Concurrent.ConcurrentBag(); + var cts = new CancellationTokenSource(); + + // Register an unhandled exception trap so the test process does not crash + void OnUnhandled(object? sender, UnhandledExceptionEventArgs args) + { + if (args.ExceptionObject is Exception ex) + { + strayExceptions.Add(ex); + } + } + AppDomain.CurrentDomain.UnhandledException += OnUnhandled; + + var publisherTasks = Enumerable.Range(0, publisherCount).Select(i => Task.Run(async () => + { + while (!cts.Token.IsCancellationRequested) + { + try + { + await bus.PublishAsync( + new TestMessage(Guid.NewGuid()) { Content = $"pub-{i}" }, + cancellationToken: cts.Token); + } + catch (ObjectDisposedException) { return; } + catch (OperationCanceledException) { return; } + catch (Exception ex) + { + strayExceptions.Add(ex); + return; + } + } + })).ToList(); + + // Let publishers run for ~200 ms then dispose + await Task.Delay(200); + await cts.CancelAsync(); + await bus.DisposeAsync(); + + // Wait for all publisher loops to finish + await Task.WhenAll(publisherTasks); + + AppDomain.CurrentDomain.UnhandledException -= OnUnhandled; + + if (provider is IAsyncDisposable ap) + { + await ap.DisposeAsync(); + } + + // Filter out acceptable exceptions (ObjectDisposedException / OperationCanceledException) + var unexpectedExceptions = strayExceptions + .Where(ex => ex is not ObjectDisposedException and not OperationCanceledException) + .ToList(); + + Assert.Empty(unexpectedExceptions); + + // Explicit failure-mode checks: + // - SemaphoreFullException would mean a publisher's Release() ran on a + // semaphore that DisposeAsync had already disposed. + // - NullReferenceException would mean a publisher reached _model after + // DisposeAsync nulled it (post-WaitAsync race). + Assert.DoesNotContain(strayExceptions, ex => ex is SemaphoreFullException); + Assert.DoesNotContain(strayExceptions, ex => ex is NullReferenceException); + } +} diff --git a/src/ServiceConnect.EndToEndTests/RabbitMq/PublishRequestAsyncTests.cs b/src/ServiceConnect.EndToEndTests/RabbitMq/PublishRequestAsyncTests.cs new file mode 100644 index 000000000..0deaac1b7 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/RabbitMq/PublishRequestAsyncTests.cs @@ -0,0 +1,176 @@ +using System.Collections.Concurrent; +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(RequestReplyCollection))] +public class PublishRequestAsyncTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task PublishRequestAsync_CallbackFiresForEachReply() + { + // Arrange + var responder1Queue = _fixture.GetUniqueQueueName("pubreq-responder1"); + var responder2Queue = _fixture.GetUniqueQueueName("pubreq-responder2"); + var requesterQueue = _fixture.GetUniqueQueueName("pubreq-requester"); + + // --- Responder 1 bus setup --- + var responder1HandlerReferences = new List + { + new() { + HandlerType = typeof(PubReqReplyHandler), + MessageType = typeof(TestRequest) + } + }; + + var responder1Services = new ServiceCollection(); + responder1Services.AddLogging(); + responder1Services.AddSingleton>(responder1HandlerReferences); + responder1Services.AddTransient, PubReqReplyHandler>(); + + responder1Services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = responder1Queue); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var responder1Provider = responder1Services.BuildServiceProvider(); + var responder1Bus = responder1Provider.GetRequiredService(); + await responder1Bus.StartConsumingAsync(); + + // --- Responder 2 bus setup --- + var responder2HandlerReferences = new List + { + new() { + HandlerType = typeof(PubReqReplyHandler), + MessageType = typeof(TestRequest) + } + }; + + var responder2Services = new ServiceCollection(); + responder2Services.AddLogging(); + responder2Services.AddSingleton>(responder2HandlerReferences); + responder2Services.AddTransient, PubReqReplyHandler>(); + + responder2Services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = responder2Queue); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var responder2Provider = responder2Services.BuildServiceProvider(); + var responder2Bus = responder2Provider.GetRequiredService(); + await responder2Bus.StartConsumingAsync(); + + // --- Requester bus setup --- + var requesterHandlerReferences = new List(); + + var requesterServices = new ServiceCollection(); + requesterServices.AddLogging(); + requesterServices.AddSingleton>(requesterHandlerReferences); + + requesterServices.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = requesterQueue); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var requesterProvider = requesterServices.BuildServiceProvider(); + var requesterBus = requesterProvider.GetRequiredService(); + await requesterBus.StartConsumingAsync(); + + // Give consumers time to set up + + + try + { + // Act + var replies = new ConcurrentBag(); + var request = new TestRequest(Guid.NewGuid()) { Question = "publish-request-question" }; + + await requesterBus.PublishRequestAsync( + request, + replies.Add, + new RequestOptions + { + Timeout = 30000, + ExpectedReplyCount = 2 + }); + + // Assert + Assert.Equal(2, replies.Count); + Assert.All(replies, reply => Assert.Equal("publish-request-question", reply.Answer)); + } + finally + { + await responder1Bus.DisposeAsync(); + if (responder1Provider is IAsyncDisposable asyncResponder1Provider) + { + await asyncResponder1Provider.DisposeAsync(); + } + + await responder2Bus.DisposeAsync(); + if (responder2Provider is IAsyncDisposable asyncResponder2Provider) + { + await asyncResponder2Provider.DisposeAsync(); + } + + await requesterBus.DisposeAsync(); + if (requesterProvider is IAsyncDisposable asyncRequesterProvider) + { + await asyncRequesterProvider.DisposeAsync(); + } + } + } +} + +file class PubReqReplyHandler : IMessageHandler +{ + public async Task HandleAsync(TestRequest message, IConsumeContext context, CancellationToken cancellationToken = default) + { + await context.ReplyAsync(new TestResponse(Guid.NewGuid()) + { + Answer = message.Question + }); + } +} diff --git a/src/ServiceConnect.EndToEndTests/RabbitMq/PublisherConfirmsTests.cs b/src/ServiceConnect.EndToEndTests/RabbitMq/PublisherConfirmsTests.cs new file mode 100644 index 000000000..9ab03277f --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/RabbitMq/PublisherConfirmsTests.cs @@ -0,0 +1,87 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(MessagingCollection))] +public class PublisherConfirmsTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task PublisherConfirms_Enabled_MessageAcknowledgedByBroker() + { + // Arrange + var tcs = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var queueName = _fixture.GetUniqueQueueName("pub-confirms"); + + var handlerReferences = new List + { + new() + { + HandlerType = typeof(CallbackHandler), + MessageType = typeof(TestMessage) + } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>(handlerReferences); + services.AddTransient>(_ => + new CallbackHandler(msg => tcs.TrySetResult(msg))); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SetClientSetting("PublisherAcknowledgements", true); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + await bus.StartConsumingAsync(); + + + try + { + // Act: send message with publisher confirms enabled + // If confirms fail, PublishAsync would throw + var correlationId = Guid.NewGuid(); + var sent = new TestMessage(correlationId) { Content = "confirmed" }; + await bus.PublishAsync(sent); + + // Assert: message received by consumer (confirms didn't block delivery) + var cts = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + cts.Token.Register(() => tcs.TrySetCanceled()); + var received = await tcs.Task; + + Assert.Equal("confirmed", received.Content); + Assert.Equal(correlationId, received.CorrelationId); + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + } +} diff --git a/src/ServiceConnect.EndToEndTests/RabbitMq/QueuePurgeTests.cs b/src/ServiceConnect.EndToEndTests/RabbitMq/QueuePurgeTests.cs new file mode 100644 index 000000000..bb6bf58a1 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/RabbitMq/QueuePurgeTests.cs @@ -0,0 +1,137 @@ +using System.Text; +using Microsoft.Extensions.DependencyInjection; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Helpers; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(MessagingCollection))] +public class QueuePurgeTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task PurgeQueueOnStartup_ExistingMessages_ClearedBeforeConsuming() + { + // Arrange: pre-populate queue with messages using raw RabbitMQ client + var queueName = _fixture.GetUniqueQueueName("purge"); + var tcs = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + + var factory = new ConnectionFactory + { + HostName = _fixture.RabbitMqHostname, + Port = _fixture.RabbitMqPort, + UserName = _fixture.RabbitMqUsername, + Password = _fixture.RabbitMqPassword + }; + + // Create queue and publish stale messages directly + { + await using var conn = await factory.CreateConnectionAsync(); + await using var channel = await conn.CreateChannelAsync(); + + await channel.QueueDeclareAsync(queueName, durable: true, exclusive: false, autoDelete: false); + + // Bind to the TestMessage exchange so ServiceConnect can find it + var exchangeName = typeof(TestMessage).FullName!; + await channel.ExchangeDeclareAsync(exchangeName, "fanout", durable: true); + await channel.QueueBindAsync(queueName, exchangeName, string.Empty); + + // Publish 3 stale messages + var props = new BasicProperties + { + Headers = new Dictionary + { + ["MessageType"] = Encoding.UTF8.GetBytes(typeof(TestMessage).FullName!) + } + }; + for (int i = 0; i < 3; i++) + { + await channel.BasicPublishAsync("", queueName, mandatory: false, props, Encoding.UTF8.GetBytes($"{{\"Content\":\"stale-{i}\"}}")); + } + } + + // Now start ServiceConnect bus with PurgeQueueOnStartup=true + var handlerReferences = new List + { + new() + { + HandlerType = typeof(CallbackHandler), + MessageType = typeof(TestMessage) + } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>(handlerReferences); + services.AddTransient>(_ => + new CallbackHandler(msg => tcs.TrySetResult(msg))); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => + { + q.QueueName = queueName; + q.PurgeQueueOnStartup = true; + }); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + await bus.StartConsumingAsync(); + + await using var purgeConn = await factory.CreateConnectionAsync(); + await using var purgeChannel = await purgeConn.CreateChannelAsync(); + var purgeResult = await TestPolling.WaitUntilAsync( + async () => + { + var get = await purgeChannel.BasicGetAsync(queueName, autoAck: true); + return get is null; + }, + TimeSpan.FromSeconds(5)); + Assert.True(purgeResult, "Queue did not become empty within timeout."); + + try + { + // Act: send a fresh message after purge + var correlationId = Guid.NewGuid(); + var sent = new TestMessage(correlationId) { Content = "fresh-after-purge" }; + await bus.PublishAsync(sent); + + // Assert: only the fresh message is received, not stale ones + var cts = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + cts.Token.Register(() => tcs.TrySetCanceled()); + var received = await tcs.Task; + + Assert.Equal("fresh-after-purge", received.Content); + Assert.Equal(correlationId, received.CorrelationId); + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + } +} diff --git a/src/ServiceConnect.EndToEndTests/RabbitMq/RabbitMqChannelStressE2ETests.cs b/src/ServiceConnect.EndToEndTests/RabbitMq/RabbitMqChannelStressE2ETests.cs new file mode 100644 index 000000000..78368edfb --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/RabbitMq/RabbitMqChannelStressE2ETests.cs @@ -0,0 +1,119 @@ +using Microsoft.Extensions.DependencyInjection; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Helpers; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +/// +/// End-to-end guard that bursts of concurrent poison messages stay within the +/// channel's concurrency discipline. Publishing 20 poison messages at once must not +/// surface CHANNEL_ERROR or AlreadyClosedException, and every message must land in +/// the error queue. +/// +[Collection(nameof(MessagingCollection))] +public class RabbitMqChannelStressE2ETests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task BurstOfPoisonMessages_NoChannelErrors_AllLandInErrorQueue() + { + const int messageCount = 20; + + var queueName = _fixture.GetUniqueQueueName("channel-stress"); + var errorQueueName = _fixture.GetUniqueQueueName("channel-stress-eq"); + var auditQueueName = _fixture.GetUniqueQueueName("channel-stress-aq"); + + var handlerReferences = new List + { + new() + { + HandlerType = typeof(CallbackHandler), + MessageType = typeof(TestMessage) + } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>(handlerReferences); + services.AddTransient>(_ => + new CallbackHandler(_ => + throw new InvalidOperationException("poison"))); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.MaxRetries = 1; + t.RetryDelay = 500; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => + { + q.QueueName = queueName; + q.ErrorQueueName = errorQueueName; + q.AuditingEnabled = true; + q.AuditQueueName = auditQueueName; + }); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + await bus.StartConsumingAsync(); + + try + { + // Publish 20 poison messages in parallel + var publishTasks = Enumerable.Range(0, messageCount).Select(i => + bus.PublishAsync(new TestMessage(Guid.NewGuid()) { Content = $"poison-{i}" })); + await Task.WhenAll(publishTasks); + + // Assert: all 20 messages eventually land in the error queue + var factory = new ConnectionFactory + { + HostName = _fixture.RabbitMqHostname, + Port = _fixture.RabbitMqPort, + UserName = _fixture.RabbitMqUsername, + Password = _fixture.RabbitMqPassword + }; + await using var conn = await factory.CreateConnectionAsync(); + await using var channel = await conn.CreateChannelAsync(); + + var errorCount = 0; + var reached = await TestPolling.WaitUntilAsync(async () => + { + var msg = await channel.BasicGetAsync(errorQueueName, autoAck: true); + if (msg != null) + { + errorCount++; + } + + return errorCount >= messageCount; + }, TimeSpan.FromSeconds(60), TimeSpan.FromMilliseconds(200)); + + Assert.True(reached, $"Expected {messageCount} messages in error queue but only got {errorCount}."); + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable ap) + { + await ap.DisposeAsync(); + } + } + } +} diff --git a/src/ServiceConnect.EndToEndTests/RabbitMq/RetryTopologyAutoDeleteE2ETests.cs b/src/ServiceConnect.EndToEndTests/RabbitMq/RetryTopologyAutoDeleteE2ETests.cs new file mode 100644 index 000000000..bb644ffa9 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/RabbitMq/RetryTopologyAutoDeleteE2ETests.cs @@ -0,0 +1,151 @@ +using Microsoft.Extensions.Logging.Abstractions; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using RabbitMQ.Client.Exceptions; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.EndToEndTests.Fixtures; +using Xunit; + +namespace ServiceConnect.EndToEndTests.RabbitMq; + +/// +/// Verifies the contract that the retry DLX is declared with autoDelete:false and therefore +/// survives the auto-deletion of the main consumer queue. This matters because the retry queue +/// dead-letters messages back through the DLX after their TTL expires — if the DLX had been +/// deleted when the main queue dropped, the re-declared main queue could not be (re-)bound to it, +/// and the retried message would be silently dropped. +/// +[Collection(nameof(MessagingCollection))] +public sealed class RetryTopologyAutoDeleteE2ETests(MessagingFixture fixture) +{ + // RabbitMqQueueNaming is internal to ServiceConnect.Client.RabbitMQ; mirror the constants + // rather than adding a test-only InternalsVisibleTo just for two string literals. + private const string RetryQueueSuffix = ".Retries"; + private const string RetryDlxSuffix = ".Retries.DeadLetter"; + + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task RetryDlx_OutlivesAutoDeletedMainQueue_MessageRedeliversAfterMainQueueRecreate() + { + var factory = new ConnectionFactory + { + HostName = _fixture.RabbitMqHostname, + Port = _fixture.RabbitMqPort, + UserName = _fixture.RabbitMqUsername, + Password = _fixture.RabbitMqPassword, + }; + + await using var connection = await factory.CreateConnectionAsync(); + + var queueName = _fixture.GetUniqueQueueName("retry-dlx-survives"); + var retryQueueName = queueName + RetryQueueSuffix; + var retryDlxName = queueName + RetryDlxSuffix; + var provisioner = new RabbitMqTopologyProvisioner(NullLogger.Instance); + + // Setup: declare the main queue with autoDelete:true, attach a consumer (autoDelete + // fires when the last consumer disconnects), provision the retry topology, and publish + // into the retry queue. ConfigureRetryTopologyAsync hard-codes autoDelete:false on the + // DLX regardless of the autoDelete argument — that is the invariant under test. + await using (var setupChannel = await connection.CreateChannelAsync()) + { + await setupChannel.QueueDeclareAsync( + queueName, + durable: false, + exclusive: false, + autoDelete: true, + arguments: null); + + await provisioner.ConfigureRetryTopologyAsync( + setupChannel, + queueName, + durable: false, + autoDelete: true, + retryDelayMs: 1000, + retryQueueArguments: new Dictionary(), + isInitialSetup: true); + + // Register a consumer so the queue is "active"; autoDelete will fire when this + // consumer is gone (i.e., when setupChannel is disposed below). + var placeholderConsumer = new AsyncEventingBasicConsumer(setupChannel); + await setupChannel.BasicConsumeAsync(queueName, autoAck: true, placeholderConsumer); + + // Publish directly to the retry queue via the default exchange. The retry queue has + // x-message-ttl=1000 ms and x-dead-letter-exchange=retryDlxName, so after 1000 ms + // the broker dead-letters the message through the retry DLX with routing key + // retryQueueName. The binding queueName ↔ retryDlxName (routing key retryQueueName) + // that ConfigureRetryTopologyAsync created will route it back to the main queue. + await setupChannel.BasicPublishAsync( + exchange: string.Empty, + routingKey: retryQueueName, + mandatory: false, + basicProperties: new BasicProperties { Persistent = false }, + body: new byte[] { 1, 2, 3 }); + } + + // setupChannel disposed here → its consumer is cancelled → main queue loses its last + // consumer → autoDelete fires and the broker drops the main queue. The binding from the + // main queue to the retry DLX therefore dissolves. The DLX itself is declared with + // autoDelete:false and must survive — declaring it with autoDelete:true would let the + // broker drop it once its binding count hit zero. + + // Allow up to 2 s for the broker to process the autoDelete on the main queue. + var dropped = false; + var sw = System.Diagnostics.Stopwatch.StartNew(); + while (sw.Elapsed < TimeSpan.FromSeconds(2) && !dropped) + { + // Each OperationInterruptedException closes the channel, so open a fresh one per attempt. + await using var checkChannel = await connection.CreateChannelAsync(); + try + { + await checkChannel.QueueDeclarePassiveAsync(queueName); + await Task.Delay(100); + } + catch (OperationInterruptedException ex) when (ex.ShutdownReason?.ReplyCode == 404) + { + dropped = true; + } + } + + // Recovery: re-declare the main queue and re-bind it to the retry DLX BEFORE the retry + // queue's TTL fires. This is the realistic "consumer restart" scenario: the new consumer + // process re-declares its queue and re-provisions topology on startup. The binding must + // exist at the moment the TTL fires so the dead-lettered message can route through. + // + // The retry DLX is still alive (autoDelete:false), so QueueBindAsync succeeds. + // If the DLX had been declared with autoDelete:true, it would have been removed + // when the main queue's binding dissolved — QueueBindAsync would then fail with + // 404, and even a silent re-create by ConfigureRetryTopologyAsync would lose the + // message, because dead-letter routing captures the DLX reference at enqueue time + // (when the retry queue was first declared), and an auto-deleted+recreated exchange + // is a different object with a different internal reference. + await using var consumerChannel = await connection.CreateChannelAsync(); + await consumerChannel.QueueDeclareAsync( + queueName, + durable: false, + exclusive: false, + autoDelete: true, + arguments: null); + + // Re-establish the binding the setup channel held; idempotent if the DLX survived. + await consumerChannel.QueueBindAsync(queueName, retryDlxName, retryQueueName, null); + + var receivedTcs = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var consumer = new AsyncEventingBasicConsumer(consumerChannel); + consumer.ReceivedAsync += (_, args) => + { + receivedTcs.TrySetResult(args.Body.ToArray()); + return Task.CompletedTask; + }; + await consumerChannel.BasicConsumeAsync(queueName, autoAck: true, consumer); + + // Wait for the retry queue's TTL to fire (1000 ms) plus a safety margin. The + // dead-lettered message routes through the surviving DLX to the re-declared main + // queue, and the consumer receives it. An auto-deleted DLX would either have made + // QueueBindAsync above throw 404, or — worse — left the message unroutable at TTL + // expiry to be silently dropped. + var received = await receivedTcs.Task.WaitAsync(TimeSpan.FromSeconds(5)); + Assert.Equal(new byte[] { 1, 2, 3 }, received); + } +} diff --git a/src/ServiceConnect.EndToEndTests/RabbitMq/UnroutableRetryPublishE2ETests.cs b/src/ServiceConnect.EndToEndTests/RabbitMq/UnroutableRetryPublishE2ETests.cs new file mode 100644 index 000000000..1a4e9e241 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/RabbitMq/UnroutableRetryPublishE2ETests.cs @@ -0,0 +1,130 @@ +using Microsoft.Extensions.DependencyInjection; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests.RabbitMq; + +/// +/// Verifies the unroutable-retry-publish contract: when a handler throws and the retry +/// queue has been deleted (so the mandatory:true BasicPublishAsync raises PublishException), +/// InboundMessageProcessor catches the PublishException, logs Error, and acks the original +/// message to break the redelivery loop. The original message must not be redelivered to +/// the handler after the retry-publish failure. +/// +[Collection(nameof(IsolatedCollection))] +public sealed class UnroutableRetryPublishE2ETests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task RetryQueueGoneAtPublishTime_OriginalMessageAcked_HandlerCalledOnce() + { + var queueName = _fixture.GetUniqueQueueName("unroutable-retry"); + var retryQueueName = queueName + ".Retries"; + + // Counter shared across DI-resolved handler instances via a captured reference type. + var callState = new HandlerCallState(); + + var handlerReferences = new List + { + new() { HandlerType = typeof(AlwaysThrowsHandler), MessageType = typeof(UnroutableRetryProbe) } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>(handlerReferences); + services.AddTransient>(_ => + new AlwaysThrowsHandler(callState)); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + // One retry configured so the retry queue is provisioned at startup. + // After the retry queue is deleted, the mandatory:true publish to it + // raises PublishException, which InboundMessageProcessor catches and acks. + t.SetClientSetting("RetryCount", 1); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + await using var sp = services.BuildServiceProvider(); + var bus = sp.GetRequiredService(); + + // StartConsumingAsync provisions the retry queue topology. + await bus.StartConsumingAsync(); + + try + { + // Delete the retry queue out-of-band, AFTER topology provisioning, so the + // next retry-publish finds no binding and raises PublishException. + var factory = new ConnectionFactory + { + HostName = _fixture.RabbitMqHostname, + Port = _fixture.RabbitMqPort, + UserName = _fixture.RabbitMqUsername, + Password = _fixture.RabbitMqPassword, + }; + await using var sideConn = await factory.CreateConnectionAsync(); + await using var sideChannel = await sideConn.CreateChannelAsync(); + + // Passive-declare to confirm the retry queue was provisioned before we delete it. + await sideChannel.QueueDeclarePassiveAsync(retryQueueName); + await sideChannel.QueueDeleteAsync(retryQueueName, ifUnused: false, ifEmpty: false); + + // Send a message. The handler will throw, forcing the retry publish path. + // With the retry queue gone, BasicPublishAsync(mandatory:true) raises PublishException, + // which InboundMessageProcessor catches and swallows — returning true so EventAsync acks. + await bus.PublishAsync(new UnroutableRetryProbe(Guid.NewGuid())); + + // Wait for the handler to be called at least once. + using var cts = new CancellationTokenSource(TimeSpan.FromSeconds(15)); + cts.Token.Register(() => callState.CalledTcs.TrySetCanceled()); + await callState.CalledTcs.Task; + + // Wait 2 s more. If the message were nacked with requeue:true (regression), the + // handler would be called again within this window. + await Task.Delay(TimeSpan.FromSeconds(2)); + + Assert.Equal(1, callState.AttemptCount); + } + finally + { + await bus.DisposeAsync(); + } + } + + // Scoped message type avoids collision with any other test's fanout exchange. + private sealed class UnroutableRetryProbe(Guid correlationId) : Message(correlationId); + + // Shared mutable state for handler instances created by DI across multiple invocations. + private sealed class HandlerCallState + { + public int AttemptCount; + public readonly TaskCompletionSource CalledTcs = new(TaskCreationOptions.RunContinuationsAsynchronously); + } + + private sealed class AlwaysThrowsHandler(HandlerCallState state) : IMessageHandler + { + private readonly HandlerCallState _state = state; + + public Task HandleAsync(UnroutableRetryProbe message, IConsumeContext context, CancellationToken cancellationToken = default) + { + Interlocked.Increment(ref _state.AttemptCount); + _state.CalledTcs.TrySetResult(); + throw new InvalidOperationException("Deliberate handler failure for unroutable-retry test."); + } + } +} diff --git a/src/ServiceConnect.EndToEndTests/Routing/ConsumeContextReplyTests.cs b/src/ServiceConnect.EndToEndTests/Routing/ConsumeContextReplyTests.cs new file mode 100644 index 000000000..6534ee591 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Routing/ConsumeContextReplyTests.cs @@ -0,0 +1,142 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(RequestReplyCollection))] +public class ConsumeContextReplyTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task Handler_UsesContextReply_RequesterReceivesResponse() + { + // This test verifies Context.ReplyAsync() works when a handler + // receives a sent message (not using SendRequestAsync, but direct Send + // with a reply handler on the sender side). + + // Arrange + var responderQueue = _fixture.GetUniqueQueueName("ctx-reply-responder"); + var requesterQueue = _fixture.GetUniqueQueueName("ctx-reply-requester"); + var replyTcs = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + + // --- Responder: handles TestRequest and uses Context.ReplyAsync --- + var responderHandlerRefs = new List + { + new() + { + HandlerType = typeof(ContextReplyHandler), + MessageType = typeof(TestRequest) + } + }; + + var responderServices = new ServiceCollection(); + responderServices.AddLogging(); + responderServices.AddSingleton>(responderHandlerRefs); + responderServices.AddTransient, ContextReplyHandler>(); + + responderServices.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = responderQueue); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var responderProvider = responderServices.BuildServiceProvider(); + var responderBus = responderProvider.GetRequiredService(); + await responderBus.StartConsumingAsync(); + + // --- Requester: sends request and listens for reply via handler --- + var requesterHandlerRefs = new List + { + new() + { + HandlerType = typeof(CallbackHandler), + MessageType = typeof(TestResponse) + } + }; + + var requesterServices = new ServiceCollection(); + requesterServices.AddLogging(); + requesterServices.AddSingleton>(requesterHandlerRefs); + requesterServices.AddTransient>(_ => + new CallbackHandler(msg => replyTcs.TrySetResult(msg))); + + requesterServices.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = requesterQueue); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var requesterProvider = requesterServices.BuildServiceProvider(); + var requesterBus = requesterProvider.GetRequiredService(); + await requesterBus.StartConsumingAsync(); + + + + try + { + // Act: use SendRequestAsync which sets SourceAddress so Context.ReplyAsync works + var request = new TestRequest(Guid.NewGuid()) { Question = "What is context reply?" }; + var response = await requesterBus.SendRequestAsync( + request, + new RequestOptions { EndPoint = responderQueue, Timeout = 30000 }); + + // Assert + Assert.NotNull(response); + Assert.Equal("Context reply works!", response.Answer); + } + finally + { + await responderBus.DisposeAsync(); + if (responderProvider is IAsyncDisposable asyncResponderProvider) + { + await asyncResponderProvider.DisposeAsync(); + } + + await requesterBus.DisposeAsync(); + if (requesterProvider is IAsyncDisposable asyncRequesterProvider) + { + await asyncRequesterProvider.DisposeAsync(); + } + } + } +} + +file class ContextReplyHandler : IMessageHandler +{ + public async Task HandleAsync(TestRequest message, IConsumeContext context, CancellationToken cancellationToken = default) + { + // Uses context.ReplyAsync — the key feature under test + await context.ReplyAsync(new TestResponse(Guid.NewGuid()) + { + Answer = "Context reply works!" + }); + } +} diff --git a/src/ServiceConnect.EndToEndTests/Routing/ContentRoutingTests.cs b/src/ServiceConnect.EndToEndTests/Routing/ContentRoutingTests.cs new file mode 100644 index 000000000..c3af95dbe --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Routing/ContentRoutingTests.cs @@ -0,0 +1,103 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(MessagingCollection))] +public class ContentRoutingTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task Publish_DifferentMessageTypes_RoutedToCorrectHandlers() + { + // Arrange + var testMessageTcs = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var stepMessageTcs = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var queueName = _fixture.GetUniqueQueueName("content-routing"); + + var handlerReferences = new List + { + new() { HandlerType = typeof(CallbackHandler), MessageType = typeof(TestMessage) }, + new() { HandlerType = typeof(CallbackHandler), MessageType = typeof(StepMessage) } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + + // Register handler references before AddServiceConnect so TryAddSingleton keeps this list + services.AddSingleton>(handlerReferences); + + // Register each handler backed by its own callback + services.AddTransient>(_ => + new CallbackHandler(msg => testMessageTcs.TrySetResult(msg))); + services.AddTransient>(_ => + new CallbackHandler(msg => stepMessageTcs.TrySetResult(msg))); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + await bus.StartConsumingAsync(); + + + try + { + // Act: publish one of each message type + var testCorrelationId = Guid.NewGuid(); + var stepCorrelationId = Guid.NewGuid(); + + var testMsg = new TestMessage(testCorrelationId) { Content = "routed-test-message" }; + var stepMsg = new StepMessage(stepCorrelationId) { CurrentStep = "RouteStep1" }; + + await bus.PublishAsync(testMsg); + await bus.PublishAsync(stepMsg); + + // Assert: each handler receives exactly its own message type + var cts = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + cts.Token.Register(() => + { + testMessageTcs.TrySetCanceled(); + stepMessageTcs.TrySetCanceled(); + }); + + var receivedTest = await testMessageTcs.Task; + var receivedStep = await stepMessageTcs.Task; + + Assert.Equal("routed-test-message", receivedTest.Content); + Assert.Equal(testCorrelationId, receivedTest.CorrelationId); + + Assert.Equal("RouteStep1", receivedStep.CurrentStep); + Assert.Equal(stepCorrelationId, receivedStep.CorrelationId); + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + } +} diff --git a/src/ServiceConnect.EndToEndTests/Routing/CustomHeaderTests.cs b/src/ServiceConnect.EndToEndTests/Routing/CustomHeaderTests.cs new file mode 100644 index 000000000..889d633e5 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Routing/CustomHeaderTests.cs @@ -0,0 +1,218 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(MessagingCollection))] +public class CustomHeaderTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task PublishAsync_CustomHeaders_ReceivedByHandler() + { + // Arrange + var tcs = new TaskCompletionSource>(TaskCreationOptions.RunContinuationsAsynchronously); + var queueName = _fixture.GetUniqueQueueName("customheader"); + + var handlerReferences = new List + { + new() { + HandlerType = typeof(HeaderCaptureHandler), + MessageType = typeof(TestMessage) + } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>(handlerReferences); + services.AddTransient>(_ => + new HeaderCaptureHandler(headers => tcs.TrySetResult(headers))); + + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + await bus.StartConsumingAsync(); + + + try + { + // Act + var message = new TestMessage(Guid.NewGuid()) { Content = "custom-header-test" }; + await bus.PublishAsync(message, new PublishOptions + { + Headers = new Dictionary { ["X-Custom"] = "hello-world" } + }); + + // Assert: wait up to 30 seconds for the handler to be called + var cts = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + cts.Token.Register(() => tcs.TrySetCanceled()); + + var receivedHeaders = await tcs.Task; + + Assert.NotNull(receivedHeaders); + Assert.True(receivedHeaders.ContainsKey("X-Custom"), "Expected 'X-Custom' header to be present"); + var rawValue = receivedHeaders["X-Custom"]; // IReadOnlyDictionary supports indexer reads + var headerValue = rawValue is byte[] b ? System.Text.Encoding.UTF8.GetString(b) : rawValue?.ToString(); + Assert.Equal("hello-world", headerValue); + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + } + + [Fact] + [Trait("Category", "Docker")] + public async Task SendRequestAsync_CustomHeaders_PropagatedToResponder() + { + // Arrange + var responderQueue = _fixture.GetUniqueQueueName("header-responder"); + var requesterQueue = _fixture.GetUniqueQueueName("header-requester"); + + // --- Responder bus setup --- + var responderHandlerReferences = new List + { + new() { + HandlerType = typeof(HeaderEchoReplyHandler), + MessageType = typeof(TestRequest) + } + }; + + var responderServices = new ServiceCollection(); + responderServices.AddLogging(); + responderServices.AddSingleton>(responderHandlerReferences); + responderServices.AddTransient, HeaderEchoReplyHandler>(); + + responderServices.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = responderQueue); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var responderProvider = responderServices.BuildServiceProvider(); + var responderBus = responderProvider.GetRequiredService(); + await responderBus.StartConsumingAsync(); + + // --- Requester bus setup --- + var requesterHandlerReferences = new List(); + + var requesterServices = new ServiceCollection(); + requesterServices.AddLogging(); + requesterServices.AddSingleton>(requesterHandlerReferences); + + requesterServices.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = requesterQueue); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var requesterProvider = requesterServices.BuildServiceProvider(); + var requesterBus = requesterProvider.GetRequiredService(); + await requesterBus.StartConsumingAsync(); + + + + try + { + // Act + var request = new TestRequest(Guid.NewGuid()) { Question = "Echo my trace id" }; + var response = await requesterBus.SendRequestAsync( + request, + new RequestOptions + { + EndPoint = responderQueue, + Timeout = 30000, + Headers = new Dictionary { ["X-Trace-Id"] = "trace-123" } + }); + + // Assert + Assert.NotNull(response); + Assert.Equal("trace-123", response.Answer); + } + finally + { + await responderBus.DisposeAsync(); + if (responderProvider is IAsyncDisposable asyncResponderProvider) + { + await asyncResponderProvider.DisposeAsync(); + } + + await requesterBus.DisposeAsync(); + if (requesterProvider is IAsyncDisposable asyncRequesterProvider) + { + await asyncRequesterProvider.DisposeAsync(); + } + } + } +} + +file class HeaderCaptureHandler(Action> callback) : IMessageHandler +{ + private readonly Action> _callback = callback; + + public Task HandleAsync(TestMessage message, IConsumeContext context, CancellationToken cancellationToken = default) + { + _callback(context.Headers); + return Task.CompletedTask; + } +} + +file class HeaderEchoReplyHandler : IMessageHandler +{ + public async Task HandleAsync(TestRequest message, IConsumeContext context, CancellationToken cancellationToken = default) + { + var traceId = context.Headers.TryGetValue("X-Trace-Id", out var value) + ? (value is byte[] bytes ? System.Text.Encoding.UTF8.GetString(bytes) : value?.ToString() ?? string.Empty) + : string.Empty; + await context.ReplyAsync(new TestResponse(Guid.NewGuid()) { Answer = traceId }); + } +} diff --git a/src/ServiceConnect.EndToEndTests/Routing/MultipleHandlerTests.cs b/src/ServiceConnect.EndToEndTests/Routing/MultipleHandlerTests.cs new file mode 100644 index 000000000..f0a230b27 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Routing/MultipleHandlerTests.cs @@ -0,0 +1,128 @@ +using System.Collections.Concurrent; +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(MessagingCollection))] +public class MultipleHandlerTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task Publish_TwoHandlersForSameType_BothExecute() + { + // Arrange + var bag = new ConcurrentBag(); + var tcs = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var queueName = _fixture.GetUniqueQueueName("multihandler"); + + var handlerReferences = new List + { + new() { + HandlerType = typeof(TaggedHandlerA), + MessageType = typeof(TestMessage) + }, + new() { + HandlerType = typeof(TaggedHandlerB), + MessageType = typeof(TestMessage) + } + }; + + var services = new ServiceCollection(); + services.AddLogging(); + + services.AddSingleton>(handlerReferences); + services.AddSingleton(bag); + services.AddSingleton(tcs); + services.AddTransient, TaggedHandlerA>(); + services.AddTransient, TaggedHandlerB>(); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + await bus.StartConsumingAsync(); + + + try + { + // Act + var correlationId = Guid.NewGuid(); + var sent = new TestMessage(correlationId) { Content = "hello multiple handlers" }; + await bus.PublishAsync(sent); + + // Assert: wait up to 30 seconds for both handlers to execute + var cts = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + cts.Token.Register(() => tcs.TrySetCanceled()); + + await tcs.Task; + + Assert.Contains("HandlerA", bag); + Assert.Contains("HandlerB", bag); + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + } +} + +file class TaggedHandlerA(ConcurrentBag bag, TaskCompletionSource tcs) : IMessageHandler +{ + private readonly ConcurrentBag _bag = bag; + private readonly TaskCompletionSource _tcs = tcs; + + public Task HandleAsync(TestMessage message, IConsumeContext context, CancellationToken cancellationToken = default) + { + _bag.Add("HandlerA"); + if (_bag.Count >= 2) + { + _tcs.TrySetResult(true); + } + + return Task.CompletedTask; + } +} + +file class TaggedHandlerB(ConcurrentBag bag, TaskCompletionSource tcs) : IMessageHandler +{ + private readonly ConcurrentBag _bag = bag; + private readonly TaskCompletionSource _tcs = tcs; + + public Task HandleAsync(TestMessage message, IConsumeContext context, CancellationToken cancellationToken = default) + { + _bag.Add("HandlerB"); + if (_bag.Count >= 2) + { + _tcs.TrySetResult(true); + } + + return Task.CompletedTask; + } +} diff --git a/src/ServiceConnect.EndToEndTests/Routing/PolymorphicMessageTests.cs b/src/ServiceConnect.EndToEndTests/Routing/PolymorphicMessageTests.cs new file mode 100644 index 000000000..db6e8c243 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Routing/PolymorphicMessageTests.cs @@ -0,0 +1,111 @@ +using System.Collections.Concurrent; +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(MessagingCollection))] +public class PolymorphicMessageTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task Publish_DerivedMessage_BaseHandlerReceivesItExactlyOnce() + { + // Arrange + var received = new ConcurrentQueue(); + var firstReceived = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var queueName = _fixture.GetUniqueQueueName("polymorphic"); + + // A base-type handler subscribes to a category by registering the CONCRETE subtypes it + // expects — one HandlerReference per concrete type. That binds the queue to each concrete + // exchange; the dispatcher's type-hierarchy walk routes the concrete delivery to the + // base-type handler. Do NOT also register the base type: the producer fans a derived + // publish out to its own exchange AND every ancestor exchange, so binding the base + // exchange too would deliver the message twice (and the base copy is re-stamped to the + // base type, which an abstract base can't even deserialise). + var handlerReferences = new List + { + new() { HandlerType = typeof(CallbackHandler), MessageType = typeof(DerivedTestMessage) }, + }; + + var services = new ServiceCollection(); + services.AddLogging(); + + // Register handler references before AddServiceConnect so TryAddSingleton keeps this list + services.AddSingleton>(handlerReferences); + + // Register the handler for the BASE type — the hierarchy walk dispatches the concrete + // delivery to it. + services.AddTransient>(_ => + new CallbackHandler(msg => + { + received.Enqueue(msg); + firstReceived.TrySetResult(); + })); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + await bus.StartConsumingAsync(); + + try + { + // Act — publish a DERIVED message + var correlationId = Guid.NewGuid(); + var sent = new DerivedTestMessage(correlationId) + { + Content = "polymorphic-test", + Extra = "extra-data" + }; + await bus.PublishAsync(sent); + + // Wait up to 30s for the first delivery, then a short grace window to surface any + // duplicate delivery/invocation before asserting exactly-once. + using var cts = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + await using (cts.Token.Register(() => firstReceived.TrySetCanceled())) + { + await firstReceived.Task; + } + await Task.Delay(TimeSpan.FromSeconds(2)); + + // Exactly one delivery + one handler invocation — no double-bind, no double-walk. + Assert.Single(received); + Assert.True(received.TryPeek(out var msg)); + Assert.Equal("polymorphic-test", msg!.Content); + Assert.Equal(correlationId, msg.CorrelationId); + Assert.IsType(msg); + Assert.Equal("extra-data", ((DerivedTestMessage)msg).Extra); + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + } +} diff --git a/src/ServiceConnect.EndToEndTests/Routing/QueueMappingTests.cs b/src/ServiceConnect.EndToEndTests/Routing/QueueMappingTests.cs new file mode 100644 index 000000000..dee2ce99b --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Routing/QueueMappingTests.cs @@ -0,0 +1,98 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(MessagingCollection))] +public class QueueMappingTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task SendAsync_WithQueueMapping_MessageRoutedToMappedQueue() + { + var mappedQueue = _fixture.GetUniqueQueueName("qmap-target"); + var senderQueue = _fixture.GetUniqueQueueName("qmap-sender"); + var tcs = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + + // Consumer on mapped queue + var handlerRefs = new List + { + new() { HandlerType = typeof(CallbackHandler), MessageType = typeof(TestMessage) } + }; + var consumerServices = new ServiceCollection(); + consumerServices.AddLogging(); + consumerServices.AddSingleton>(handlerRefs); + consumerServices.AddTransient>(_ => new CallbackHandler(msg => tcs.TrySetResult(msg))); + consumerServices.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = mappedQueue); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + var consumerProvider = consumerServices.BuildServiceProvider(); + var consumerBus = consumerProvider.GetRequiredService(); + await consumerBus.StartConsumingAsync(); + + // Sender with QueueMapping configured (no explicit endpoint) + var senderServices = new ServiceCollection(); + senderServices.AddLogging(); + senderServices.AddSingleton>([]); + senderServices.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => + { + q.QueueName = senderQueue; + q.AddQueueMapping(typeof(TestMessage), mappedQueue); + }); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + var senderProvider = senderServices.BuildServiceProvider(); + var senderBus = senderProvider.GetRequiredService(); + + + + try + { + // SendAsync without explicit endpoint — should use QueueMapping + await senderBus.SendAsync(new TestMessage(Guid.NewGuid()) { Content = "mapped" }); + + var cts = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + cts.Token.Register(() => tcs.TrySetCanceled()); + var received = await tcs.Task; + + Assert.Equal("mapped", received.Content); + } + finally + { + await consumerBus.DisposeAsync(); if (consumerProvider is IAsyncDisposable asyncConsumerProvider) + { + await asyncConsumerProvider.DisposeAsync(); + } + + await senderBus.DisposeAsync(); if (senderProvider is IAsyncDisposable asyncSenderProvider) + { + await asyncSenderProvider.DisposeAsync(); + } + } + } +} diff --git a/src/ServiceConnect.EndToEndTests/Routing/RequestReplyE2ETests.cs b/src/ServiceConnect.EndToEndTests/Routing/RequestReplyE2ETests.cs new file mode 100644 index 000000000..d44208460 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Routing/RequestReplyE2ETests.cs @@ -0,0 +1,124 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(RequestReplyCollection))] +public class RequestReplyE2ETests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task SendRequest_ResponderReplies_RequesterGetsResponse() + { + // Arrange + var responderQueue = _fixture.GetUniqueQueueName("responder"); + var requesterQueue = _fixture.GetUniqueQueueName("requester"); + + // --- Responder bus setup --- + var responderHandlerReferences = new List + { + new() { + HandlerType = typeof(ReplyHandler), + MessageType = typeof(TestRequest) + } + }; + + var responderServices = new ServiceCollection(); + responderServices.AddLogging(); + responderServices.AddSingleton>(responderHandlerReferences); + responderServices.AddTransient, ReplyHandler>(); + + responderServices.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = responderQueue); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var responderProvider = responderServices.BuildServiceProvider(); + var responderBus = responderProvider.GetRequiredService(); + await responderBus.StartConsumingAsync(); + + // --- Requester bus setup --- + var requesterHandlerReferences = new List(); + + var requesterServices = new ServiceCollection(); + requesterServices.AddLogging(); + requesterServices.AddSingleton>(requesterHandlerReferences); + + requesterServices.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = requesterQueue); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var requesterProvider = requesterServices.BuildServiceProvider(); + var requesterBus = requesterProvider.GetRequiredService(); + await requesterBus.StartConsumingAsync(); + + // Give consumers time to set up + + + try + { + // Act + var request = new TestRequest(Guid.NewGuid()) { Question = "What is 2 + 2?" }; + var response = await requesterBus.SendRequestAsync( + request, + new RequestOptions { EndPoint = responderQueue, Timeout = 30000 }); + + // Assert + Assert.NotNull(response); + Assert.Equal("The answer is 4", response.Answer); + } + finally + { + await responderBus.DisposeAsync(); + if (responderProvider is IAsyncDisposable asyncResponderProvider) + { + await asyncResponderProvider.DisposeAsync(); + } + + await requesterBus.DisposeAsync(); + if (requesterProvider is IAsyncDisposable asyncRequesterProvider) + { + await asyncRequesterProvider.DisposeAsync(); + } + } + } +} + +file class ReplyHandler : IMessageHandler +{ + public async Task HandleAsync(TestRequest message, IConsumeContext context, CancellationToken cancellationToken = default) + { + await context.ReplyAsync(new TestResponse(Guid.NewGuid()) { Answer = "The answer is 4" }); + } +} diff --git a/src/ServiceConnect.EndToEndTests/Routing/RequestReplyTests.cs b/src/ServiceConnect.EndToEndTests/Routing/RequestReplyTests.cs new file mode 100644 index 000000000..c8b51d9f7 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Routing/RequestReplyTests.cs @@ -0,0 +1,126 @@ +using Microsoft.Extensions.DependencyInjection; +using Moq; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Exceptions; +using ServiceConnect.Interfaces.Options; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +public class RequestReplyTests +{ + [Fact] + public async Task SendRequestAsync_ThrowsTimeout_WhenNoResponder() + { + var mockProducer = new Mock(); + mockProducer + .Setup(p => p.SendAsync(It.IsAny(), It.IsAny(), It.IsAny>(), It.IsAny>(), It.IsAny())) + .Returns(Task.CompletedTask); + mockProducer + .Setup(p => p.SendAsync(It.IsAny(), It.IsAny>(), It.IsAny>(), It.IsAny())) + .Returns(Task.CompletedTask); + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton(mockProducer.Object); + services.AddServiceConnect(builder => + { + builder.ConfigureQueues(q => q.QueueName = "request-reply-timeout-test"); + builder.ConfigureBus(c => c.ScanForMessageHandlers = false); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + var request = new TestRequest(Guid.NewGuid()) { Question = "test request" }; + + await Assert.ThrowsAsync(() => + bus.SendRequestAsync( + request, + new RequestOptions { EndPoint = "responder-queue", Timeout = 200 })); + } + + [Fact] + public async Task SendRequestAsync_ReturnsReply_WhenResponderReplies() + { + IRequestReplyManager? replyManager = null; + IMessageSerializer? serializer = null; + + var mockProducer = new Mock(); + mockProducer + .Setup(p => p.SendAsync(It.IsAny(), It.IsAny(), It.IsAny>(), It.IsAny(), It.IsAny>(), It.IsAny())) + .Callback, int?, IReadOnlyDictionary?, CancellationToken>((ep, t, b, hops, h, ct) => + { + if (h is not null && h.TryGetValue("RequestMessageId", out var messageId) && replyManager != null && serializer != null) + { + var response = new TestResponse(Guid.NewGuid()) { Answer = "reply data" }; + var bw = new System.Buffers.ArrayBufferWriter(); + serializer.Serialize(response, bw); + var responseBytes = bw.WrittenMemory; + Task.Run(() => replyManager.ProcessReply(messageId, responseBytes, typeof(TestResponse))); + } + }) + .Returns(Task.CompletedTask); + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton(mockProducer.Object); + services.AddServiceConnect(builder => + { + builder.ConfigureQueues(q => q.QueueName = "request-reply-success-test"); + builder.ConfigureBus(c => c.ScanForMessageHandlers = false); + }); + + var provider = services.BuildServiceProvider(); + replyManager = provider.GetRequiredService(); + serializer = provider.GetRequiredService(); + + var bus = provider.GetRequiredService(); + + var request = new TestRequest(Guid.NewGuid()) { Question = "test request" }; + + var response = await bus.SendRequestAsync( + request, + new RequestOptions { EndPoint = "responder-queue", Timeout = 5000 }); + + Assert.NotNull(response); + Assert.Equal("reply data", response.Answer); + } + + [Fact] + public async Task SendRequestAsync_BlockedByFilter_ThrowsInvalidOperationException() + { + var mockProducer = new Mock(); + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton(mockProducer.Object); + services.AddSingleton(); + services.AddServiceConnect(builder => + { + builder.ConfigureQueues(q => q.QueueName = "request-reply-blocked-test"); + builder.AddOutgoingFilter(); + builder.ConfigureBus(c => c.ScanForMessageHandlers = false); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + var request = new TestRequest(Guid.NewGuid()) { Question = "blocked request" }; + + // Filter-stop now surfaces as the typed OutgoingFiltersBlockedException (formerly a + // raw InvalidOperationException) so callers can distinguish a deliberate filter + // rejection from state-misuse or transport faults. + await Assert.ThrowsAsync(() => + bus.SendRequestAsync( + request, + new RequestOptions { EndPoint = "responder-queue", Timeout = 5000 })); + } + + private class BlockAllFilter : IFilter + { + public Task ProcessAsync(Envelope envelope, CancellationToken cancellationToken = default) => Task.FromResult(FilterAction.Stop); + } +} diff --git a/src/ServiceConnect.EndToEndTests/Routing/RoutingSlipForwardingTests.cs b/src/ServiceConnect.EndToEndTests/Routing/RoutingSlipForwardingTests.cs new file mode 100644 index 000000000..e97947d03 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Routing/RoutingSlipForwardingTests.cs @@ -0,0 +1,160 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(IsolatedCollection))] +public class RoutingSlipForwardingTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task RoutingSlip_MessageForwardedToNextDestination() + { + // Arrange: two bus instances — step1 and step2 + var step1Queue = _fixture.GetUniqueQueueName("rslip-step1"); + var step2Queue = _fixture.GetUniqueQueueName("rslip-step2"); + + var step1Called = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var step2Called = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + + // --- Step 1 bus: handles the message, routing slip should forward to step2 --- + var step1HandlerRefs = new List + { + new() + { + HandlerType = typeof(Step1Handler), + MessageType = typeof(StepMessage) + } + }; + + var step1Services = new ServiceCollection(); + step1Services.AddLogging(); + step1Services.AddSingleton>(step1HandlerRefs); + step1Services.AddTransient>(_ => + new Step1Handler(() => step1Called.TrySetResult(true))); + + step1Services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => + { + q.QueueName = step1Queue; + q.AddQueueMapping(typeof(StepMessage), step2Queue); + }); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var step1Provider = step1Services.BuildServiceProvider(); + var step1Bus = step1Provider.GetRequiredService(); + + // --- Step 2 bus: receives the forwarded message --- + var step2HandlerRefs = new List + { + new() + { + HandlerType = typeof(Step2Handler), + MessageType = typeof(StepMessage) + } + }; + + var step2Services = new ServiceCollection(); + step2Services.AddLogging(); + step2Services.AddSingleton>(step2HandlerRefs); + step2Services.AddTransient>(_ => + new Step2Handler(step => step2Called.TrySetResult(step))); + + step2Services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = step2Queue); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var step2Provider = step2Services.BuildServiceProvider(); + var step2Bus = step2Provider.GetRequiredService(); + + await step1Bus.StartConsumingAsync(); + await step2Bus.StartConsumingAsync(); + + + try + { + // Act: send message to step1 with routing slip pointing to step2 + var message = new StepMessage(Guid.NewGuid()) { CurrentStep = "Origin" }; + await step1Bus.RouteAsync(message, [step1Queue, step2Queue]); + + // Assert: step1 handler was called + var cts1 = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + cts1.Token.Register(() => step1Called.TrySetCanceled()); + Assert.True(await step1Called.Task, "Step1 handler should have been called"); + + // Assert: step2 received the forwarded message + var cts2 = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + cts2.Token.Register(() => step2Called.TrySetCanceled()); + var receivedStep = await step2Called.Task; + Assert.Equal("Step1", receivedStep); + } + finally + { + await step1Bus.DisposeAsync(); + await step2Bus.DisposeAsync(); + if (step1Provider is IAsyncDisposable asyncStep1Provider) + { + await asyncStep1Provider.DisposeAsync(); + } + + if (step2Provider is IAsyncDisposable asyncStep2Provider) + { + await asyncStep2Provider.DisposeAsync(); + } + } + } +} + +file class Step1Handler(Action onHandled) : IMessageHandler +{ + private readonly Action _onHandled = onHandled; + + public Task HandleAsync(StepMessage message, IConsumeContext context, CancellationToken cancellationToken = default) + { + message.CurrentStep = "Step1"; + _onHandled(); + return Task.CompletedTask; + } +} + +file class Step2Handler(Action onHandled) : IMessageHandler +{ + private readonly Action _onHandled = onHandled; + + public Task HandleAsync(StepMessage message, IConsumeContext context, CancellationToken cancellationToken = default) + { + _onHandled(message.CurrentStep); + return Task.CompletedTask; + } +} diff --git a/src/ServiceConnect.EndToEndTests/Routing/RoutingSlipTests.cs b/src/ServiceConnect.EndToEndTests/Routing/RoutingSlipTests.cs new file mode 100644 index 000000000..1ce03d187 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Routing/RoutingSlipTests.cs @@ -0,0 +1,108 @@ +using Microsoft.Extensions.DependencyInjection; +using Moq; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +public class RoutingSlipTests +{ + [Fact] + public async Task RouteAsync_SetsRoutingSlipHeaders() + { + string? capturedEndpoint = null; + IReadOnlyDictionary? capturedHeaders = null; + + var mockProducer = new Mock(); + mockProducer + .Setup(p => p.SendAsync(It.IsAny(), It.IsAny(), It.IsAny>(), It.IsAny(), It.IsAny>(), It.IsAny())) + .Callback, int?, IReadOnlyDictionary?, CancellationToken>((ep, t, b, hops, h, ct) => + { + capturedEndpoint = ep; + capturedHeaders = h; + }) + .Returns(Task.CompletedTask); + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton(mockProducer.Object); + services.AddServiceConnect(builder => + { + builder.ConfigureQueues(q => q.QueueName = "routing-slip-test"); + builder.ConfigureBus(c => c.ScanForMessageHandlers = false); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + var message = new StepMessage(Guid.NewGuid()) { CurrentStep = "Start" }; + + await bus.RouteAsync(message, ["Step1", "Step2", "Step3"]); + + Assert.Equal("Step1", capturedEndpoint); + Assert.NotNull(capturedHeaders); + Assert.True(capturedHeaders.ContainsKey("RoutingSlip")); + Assert.Equal("Step2,Step3", capturedHeaders["RoutingSlip"]); + } + + [Fact] + public async Task RouteAsync_SingleDestination_NoRoutingSlipHeader() + { + string? capturedEndpoint = null; + IReadOnlyDictionary? capturedHeaders = null; + + var mockProducer = new Mock(); + mockProducer + .Setup(p => p.SendAsync(It.IsAny(), It.IsAny(), It.IsAny>(), It.IsAny(), It.IsAny>(), It.IsAny())) + .Callback, int?, IReadOnlyDictionary?, CancellationToken>((ep, t, b, hops, h, ct) => + { + capturedEndpoint = ep; + capturedHeaders = h; + }) + .Returns(Task.CompletedTask); + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton(mockProducer.Object); + services.AddServiceConnect(builder => + { + builder.ConfigureQueues(q => q.QueueName = "routing-slip-single-test"); + builder.ConfigureBus(c => c.ScanForMessageHandlers = false); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + var message = new StepMessage(Guid.NewGuid()) { CurrentStep = "Start" }; + + await bus.RouteAsync(message, ["OnlyDest"]); + + Assert.Equal("OnlyDest", capturedEndpoint); + Assert.NotNull(capturedHeaders); + Assert.False(capturedHeaders.ContainsKey("RoutingSlip")); + } + + [Fact] + public async Task RouteAsync_EmptyDestinations_Throws() + { + var mockProducer = new Mock(); + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton(mockProducer.Object); + services.AddServiceConnect(builder => + { + builder.ConfigureQueues(q => q.QueueName = "routing-slip-empty-test"); + builder.ConfigureBus(c => c.ScanForMessageHandlers = false); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + var message = new StepMessage(Guid.NewGuid()) { CurrentStep = "Start" }; + + await Assert.ThrowsAsync(() => bus.RouteAsync(message, [])); + } +} diff --git a/src/ServiceConnect.EndToEndTests/ServiceConnect.EndToEndTests.csproj b/src/ServiceConnect.EndToEndTests/ServiceConnect.EndToEndTests.csproj new file mode 100644 index 000000000..b6d35441e --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/ServiceConnect.EndToEndTests.csproj @@ -0,0 +1,49 @@ + + + + net10.0 + enable + enable + false + + false + + + + + + + + + + + + + + + + runtime; build; native; contentfiles; analyzers; buildtransitive + all + + + + + + + + + + + + + + + diff --git a/src/ServiceConnect.EndToEndTests/Streaming/StreamCloseRaceE2ETests.cs b/src/ServiceConnect.EndToEndTests/Streaming/StreamCloseRaceE2ETests.cs new file mode 100644 index 000000000..ac17e8cf4 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Streaming/StreamCloseRaceE2ETests.cs @@ -0,0 +1,140 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +/// +/// End-to-end guard for the stream close / write race. Writing ~1000 4KB packets +/// concurrently from four tasks and then calling CloseAsync while some writes are +/// still in flight must preserve every packet whose write returned without +/// throwing, and the reader must observe a consistent LastPacketNumber. +/// +[Collection(nameof(MessagingCollection))] +public class StreamCloseRaceE2ETests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task Stream_ConcurrentWritesThenCloseRace_NoExceptionsLeak() + { + const int totalPackets = 100; // keep test fast — the race condition is structural + const int writerCount = 4; + const int packetSize = 4096; + + var consumerQueue = _fixture.GetUniqueQueueName("stream-close-race-consumer"); + var producerQueue = _fixture.GetUniqueQueueName("stream-close-race-producer"); + + // Producer publishes stream packets with mandatory:true, so the consumer queue + // must exist on the broker before writes start — otherwise every SendBytesAsync + // would fail with NO_ROUTE and the test would observe transport exceptions rather + // than the close-race semantics it's trying to assert on. Pre-declare directly + // via RabbitMQ.Client (the producer-only bus below never starts a consumer). + var preDeclareFactory = new global::RabbitMQ.Client.ConnectionFactory + { + HostName = _fixture.RabbitMqHostname, + Port = _fixture.RabbitMqPort, + UserName = _fixture.RabbitMqUsername, + Password = _fixture.RabbitMqPassword, + }; + await using (var preConn = await preDeclareFactory.CreateConnectionAsync()) + await using (var preCh = await preConn.CreateChannelAsync()) + { + await preCh.QueueDeclareAsync(consumerQueue, durable: false, exclusive: false, autoDelete: true); + } + + var payload = new byte[packetSize]; + new Random(42).NextBytes(payload); + + // Producer-only bus — consumer side isn't needed since we assert on the write path's + // behaviour, not on receiver reassembly. Writing random bytes can't deserialize to a + // valid TestMessage, so a consumer-side assertion would never fire. + var producerServices = new ServiceCollection(); + producerServices.AddLogging(); + producerServices.AddSingleton>([]); + producerServices.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = producerQueue); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var producerProvider = producerServices.BuildServiceProvider(); + var producerBus = producerProvider.GetRequiredService(); + + try + { + await using var stream = producerBus.CreateStream(consumerQueue); + + var accepted = new System.Collections.Concurrent.ConcurrentBag(); + var unexpectedExceptions = new System.Collections.Concurrent.ConcurrentBag(); + var packetsPerWriter = totalPackets / writerCount; + + // Write concurrently from writerCount tasks; track which ones succeeded + var closeAfter = (int)(totalPackets * 0.95); // trigger close after ~95% accepted + var closedOnce = 0; + + var writeTasks = Enumerable.Range(0, writerCount).Select(w => Task.Run(async () => + { + for (var p = 0; p < packetsPerWriter; p++) + { + try + { + await stream.WriteAsync(payload); + accepted.Add((w * packetsPerWriter) + p); + + // When 95% accepted, close the stream from one writer + if (accepted.Count >= closeAfter && + Interlocked.CompareExchange(ref closedOnce, 1, 0) == 0) + { + await stream.CloseAsync(); + } + } + catch (ObjectDisposedException) { /* stream already closed — expected */ } + catch (InvalidOperationException) { /* same */ } + catch (Exception ex) + { + unexpectedExceptions.Add(ex); + } + } + })).ToList(); + + await Task.WhenAll(writeTasks); + + // Ensure CloseAsync was called at least once + if (Interlocked.CompareExchange(ref closedOnce, 1, 0) == 0) + { + await stream.CloseAsync(); + } + + // Assert: no unexpected exceptions escaped the write loop. The write path must + // reject writes-after-close cleanly (ObjectDisposedException / InvalidOperationException) + // rather than crashing with a different exception type. + Assert.Empty(unexpectedExceptions); + // And at least some writes should have been accepted before close. + Assert.NotEmpty(accepted); + } + finally + { + await producerBus.DisposeAsync(); + if (producerProvider is IAsyncDisposable ap) + { + await ap.DisposeAsync(); + } + } + } +} diff --git a/src/ServiceConnect.EndToEndTests/Streaming/StreamOutOfOrderTests.cs b/src/ServiceConnect.EndToEndTests/Streaming/StreamOutOfOrderTests.cs new file mode 100644 index 000000000..7b0c1c607 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Streaming/StreamOutOfOrderTests.cs @@ -0,0 +1,144 @@ +using System.Text; +using Microsoft.Extensions.DependencyInjection; +using System.Text.Json; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(MessagingCollection))] +public class StreamOutOfOrderTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task Stream_MultipleChunks_ReassembledCorrectly() + { + // Arrange + var completed = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var consumerQueue = _fixture.GetUniqueQueueName("stream-ooo-consumer"); + var producerQueue = _fixture.GetUniqueQueueName("stream-ooo-producer"); + + var originalMessage = new TestMessage(Guid.NewGuid()) { Content = "multi-chunk-stream" }; + var serializedBytes = Encoding.UTF8.GetBytes(JsonSerializer.Serialize(originalMessage)); + + // Split serialized bytes into 5 chunks + var chunkSize = serializedBytes.Length / 5; + var chunk1 = serializedBytes[..chunkSize]; + var chunk2 = serializedBytes[chunkSize..(chunkSize * 2)]; + var chunk3 = serializedBytes[(chunkSize * 2)..(chunkSize * 3)]; + var chunk4 = serializedBytes[(chunkSize * 3)..(chunkSize * 4)]; + var chunk5 = serializedBytes[(chunkSize * 4)..]; + + // Consumer bus with IStreamHandler + var handlerRefs = new List + { + new() + { + HandlerType = typeof(StreamCaptureHandler), + MessageType = typeof(TestMessage) + } + }; + + var consumerServices = new ServiceCollection(); + consumerServices.AddLogging(); + consumerServices.AddSingleton>(handlerRefs); + consumerServices.AddSingleton(completed); + consumerServices.AddSingleton(completed); + consumerServices.AddTransient, StreamCaptureHandler>(); + + consumerServices.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = consumerQueue); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var consumerProvider = consumerServices.BuildServiceProvider(); + var consumerBus = consumerProvider.GetRequiredService(); + await consumerBus.StartConsumingAsync(); + + + // Producer bus + var producerServices = new ServiceCollection(); + producerServices.AddLogging(); + producerServices.AddSingleton>([]); + producerServices.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = producerQueue); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var producerProvider = producerServices.BuildServiceProvider(); + var producerBus = producerProvider.GetRequiredService(); + + try + { + // Act: create stream, write 5 chunks, close + await using var stream = producerBus.CreateStream(consumerQueue); + + await stream.WriteAsync(chunk1); + await stream.WriteAsync(chunk2); + await stream.WriteAsync(chunk3); + await stream.WriteAsync(chunk4); + await stream.WriteAsync(chunk5); + await stream.CloseAsync(); + + // Assert: wait for handler to receive reassembled data + using var cts = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + cts.Token.Register(() => completed.TrySetCanceled()); + var receivedBytes = await completed.Task; + + Assert.Equal(serializedBytes, receivedBytes); + } + finally + { + await consumerBus.DisposeAsync(); + await producerBus.DisposeAsync(); + if (consumerProvider is IAsyncDisposable asyncConsumerProvider) + { + await asyncConsumerProvider.DisposeAsync(); + } + + if (producerProvider is IAsyncDisposable asyncProducerProvider) + { + await asyncProducerProvider.DisposeAsync(); + } + } + } +} + +file class StreamCaptureHandler(TaskCompletionSource tcs) : IStreamHandler +{ + private readonly TaskCompletionSource _tcs = tcs; + + public Task ExecuteAsync(TestMessage message, IMessageBusReadStream stream, CancellationToken cancellationToken = default) + { + _tcs.TrySetResult(stream.Read()); + return Task.CompletedTask; + } +} diff --git a/src/ServiceConnect.EndToEndTests/Streaming/StreamRedeliveryIdempotencyE2ETests.cs b/src/ServiceConnect.EndToEndTests/Streaming/StreamRedeliveryIdempotencyE2ETests.cs new file mode 100644 index 000000000..511a0212d --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Streaming/StreamRedeliveryIdempotencyE2ETests.cs @@ -0,0 +1,151 @@ +using System.Text; +using Microsoft.Extensions.DependencyInjection; +using System.Text.Json; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +/// +/// End-to-end smoke for streamed-message handler idempotency. Verifies that a +/// completed stream invokes its handler exactly once across the bus, guarding +/// against regressions in the duplicate-packet idempotent-ack and final-packet +/// dispatch-gating paths. +/// +[Collection(nameof(MessagingCollection))] +public class StreamRedeliveryIdempotencyE2ETests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task DuplicateFinalPacket_HandlerInvokedExactlyOnce() + { + var consumerQueue = _fixture.GetUniqueQueueName("stream-redeliv-consumer"); + var producerQueue = _fixture.GetUniqueQueueName("stream-redeliv-producer"); + + var counter = new IdempotencyCounter(); + var firstResult = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + + var originalMessage = new TestMessage(Guid.NewGuid()) { Content = "redelivery-test" }; + var serializedBytes = Encoding.UTF8.GetBytes(JsonSerializer.Serialize(originalMessage)); + + var handlerRefs = new List + { + new() + { + HandlerType = typeof(IdempotencyCheckHandler), + MessageType = typeof(TestMessage) + } + }; + + var consumerServices = new ServiceCollection(); + consumerServices.AddLogging(); + consumerServices.AddSingleton>(handlerRefs); + consumerServices.AddSingleton(counter); + consumerServices.AddSingleton(firstResult); + consumerServices.AddTransient, IdempotencyCheckHandler>(); + + consumerServices.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = consumerQueue); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var consumerProvider = consumerServices.BuildServiceProvider(); + var consumerBus = consumerProvider.GetRequiredService(); + await consumerBus.StartConsumingAsync(); + + var producerServices = new ServiceCollection(); + producerServices.AddLogging(); + producerServices.AddSingleton>([]); + producerServices.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = producerQueue); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var producerProvider = producerServices.BuildServiceProvider(); + var producerBus = producerProvider.GetRequiredService(); + + try + { + // Send a single completed stream and assert the handler fires exactly + // once. Within-sequence broker redelivery is covered by unit tests; this + // is the smoke check that the bus end-to-end keeps the invariant. + await using (var stream = producerBus.CreateStream(consumerQueue)) + { + await stream.WriteAsync(serializedBytes); + await stream.CloseAsync(); + } + + using var cts = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + cts.Token.Register(() => firstResult.TrySetCanceled()); + await firstResult.Task; + + // Settle window for any duplicate-dispatch race to surface. + await Task.Delay(TimeSpan.FromSeconds(2)); + + Assert.Equal(1, counter.InvocationCount); + } + finally + { + await consumerBus.DisposeAsync(); + await producerBus.DisposeAsync(); + if (consumerProvider is IAsyncDisposable a) + { + await a.DisposeAsync(); + } + + if (producerProvider is IAsyncDisposable b) + { + await b.DisposeAsync(); + } + } + } +} + +file sealed class IdempotencyCounter +{ + private int _count; + public int InvocationCount => Volatile.Read(ref _count); + public void Increment() => Interlocked.Increment(ref _count); +} + +file sealed class IdempotencyCheckHandler(IdempotencyCounter counter, TaskCompletionSource firstResult) : IStreamHandler +{ + private readonly IdempotencyCounter _counter = counter; + private readonly TaskCompletionSource _firstResult = firstResult; + + public Task ExecuteAsync(TestMessage message, IMessageBusReadStream stream, CancellationToken cancellationToken = default) + { + _counter.Increment(); + var data = stream.Read(); + _firstResult.TrySetResult(data); + return Task.CompletedTask; + } +} diff --git a/src/ServiceConnect.EndToEndTests/Streaming/StreamingTests.cs b/src/ServiceConnect.EndToEndTests/Streaming/StreamingTests.cs new file mode 100644 index 000000000..fd469bf06 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Streaming/StreamingTests.cs @@ -0,0 +1,141 @@ +using System.Text; +using Microsoft.Extensions.DependencyInjection; +using System.Text.Json; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +[Collection(nameof(MessagingCollection))] +public class StreamingTests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task CreateStream_WritesChunks_HandlerReceivesCompleteData() + { + // Arrange + var completed = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var consumerQueue = _fixture.GetUniqueQueueName("stream-consumer"); + var producerQueue = _fixture.GetUniqueQueueName("stream-producer"); + + // Serialize a TestMessage so the StreamProcessor can deserialize the reassembled bytes + var originalMessage = new TestMessage(Guid.NewGuid()) { Content = "streamed-content" }; + var serializedBytes = Encoding.UTF8.GetBytes(JsonSerializer.Serialize(originalMessage)); + + // Split serialized bytes into 3 chunks + var chunkSize = serializedBytes.Length / 3; + var chunk1 = serializedBytes[..chunkSize]; + var chunk2 = serializedBytes[chunkSize..(chunkSize * 2)]; + var chunk3 = serializedBytes[(chunkSize * 2)..]; + + // Consumer bus with IStreamHandler + var handlerRefs = new List + { + new() + { + HandlerType = typeof(TestStreamHandler), + MessageType = typeof(TestMessage) + } + }; + + var consumerServices = new ServiceCollection(); + consumerServices.AddLogging(); + consumerServices.AddSingleton>(handlerRefs); + consumerServices.AddSingleton(completed); + consumerServices.AddTransient, TestStreamHandler>(); + + consumerServices.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = consumerQueue); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var consumerProvider = consumerServices.BuildServiceProvider(); + var consumerBus = consumerProvider.GetRequiredService(); + await consumerBus.StartConsumingAsync(); + + + // Producer bus + var producerServices = new ServiceCollection(); + producerServices.AddLogging(); + producerServices.AddSingleton>([]); + producerServices.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = producerQueue); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + var producerProvider = producerServices.BuildServiceProvider(); + var producerBus = producerProvider.GetRequiredService(); + + try + { + // Act: create stream, write chunks, close + await using var stream = producerBus.CreateStream(consumerQueue); + + await stream.WriteAsync(chunk1); + await stream.WriteAsync(chunk2); + await stream.WriteAsync(chunk3); + await stream.CloseAsync(); + + // Assert: wait for handler to receive the complete reassembled data + using var cts = new CancellationTokenSource(TimeSpan.FromSeconds(30)); + cts.Token.Register(() => completed.TrySetCanceled()); + var receivedBytes = await completed.Task; + + Assert.Equal(serializedBytes, receivedBytes); + } + finally + { + await consumerBus.DisposeAsync(); + await producerBus.DisposeAsync(); + if (consumerProvider is IAsyncDisposable asyncConsumerProvider) + { + await asyncConsumerProvider.DisposeAsync(); + } + + if (producerProvider is IAsyncDisposable asyncProducerProvider) + { + await asyncProducerProvider.DisposeAsync(); + } + } + } +} + +file class TestStreamHandler(TaskCompletionSource tcs) : IStreamHandler +{ + private readonly TaskCompletionSource _tcs = tcs; + + public Task ExecuteAsync(TestMessage message, IMessageBusReadStream stream, CancellationToken cancellationToken = default) + { + var data = stream.Read(); + _tcs.TrySetResult(data); + return Task.CompletedTask; + } +} diff --git a/src/ServiceConnect.EndToEndTests/Stress/ThroughputSoakE2ETests.cs b/src/ServiceConnect.EndToEndTests/Stress/ThroughputSoakE2ETests.cs new file mode 100644 index 000000000..e572d665c --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Stress/ThroughputSoakE2ETests.cs @@ -0,0 +1,206 @@ +using System.Collections.Concurrent; +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.EndToEndTests.Helpers; +using ServiceConnect.EndToEndTests.Messages; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.EndToEndTests; + +/// +/// Opt-in throughput soak. Sustained-load tests have a different shape from the +/// "did the race fire once" E2E tests: they exercise the whole bus pipeline +/// (publisher channel pool, consumer dispatch, handler scheduling, acks) at +/// high message counts and surface back-pressure / leak / starvation issues +/// that single-burst tests miss. +/// +/// These tests are opt-in: they no-op unless the +/// SERVICECONNECT_STRESS environment variable is set to 1. Run +/// them explicitly via: +/// SERVICECONNECT_STRESS=1 dotnet test --filter "Category=Stress". +/// +[Collection(nameof(MessagingCollection))] +public class ThroughputSoakE2ETests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + private static bool StressEnabled => + string.Equals(Environment.GetEnvironmentVariable("SERVICECONNECT_STRESS"), "1", StringComparison.Ordinal); + + [Fact] + [Trait("Category", "Stress")] + public async Task Publish1000Messages_AllConsumedWithinBudget() + { + if (!StressEnabled) + { + return; + } + + // Sustained throughput: publish many messages while a single consumer drains + // them. Verifies no message is lost or duplicated under steady-state load and + // gives a rough wall-clock budget so an order-of-magnitude regression shows up. + const int messageCount = 1_000; + var deadline = TimeSpan.FromMinutes(2); + + var queueName = _fixture.GetUniqueQueueName("soak-throughput"); + var errorQueueName = _fixture.GetUniqueQueueName("soak-throughput-eq"); + + var consumed = new ConcurrentDictionary(); + + var handlerReferences = new List + { + new() + { + HandlerType = typeof(CallbackHandler), + MessageType = typeof(TestMessage), + }, + }; + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>(handlerReferences); + services.AddTransient>(_ => + new CallbackHandler(msg => + { + consumed[msg.CorrelationId] = 1; + })); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => + { + q.QueueName = queueName; + q.ErrorQueueName = errorQueueName; + }); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + await using var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + await bus.StartConsumingAsync(); + + try + { + var ids = Enumerable.Range(0, messageCount).Select(_ => Guid.NewGuid()).ToArray(); + + // Spray publishes with bounded fan-out so we exercise the channel pool + // without immediately overrunning RabbitMQ's TCP buffers. + var stopwatch = System.Diagnostics.Stopwatch.StartNew(); + var publishTasks = ids.Select(id => + bus.PublishAsync(new TestMessage(id) { Content = "soak" })).ToArray(); + await Task.WhenAll(publishTasks); + stopwatch.Stop(); + + var allReceived = await TestPolling.WaitUntilAsync( + () => Task.FromResult(consumed.Count >= messageCount), + deadline, + TimeSpan.FromMilliseconds(250)); + + Assert.True( + allReceived, + $"Expected {messageCount} messages consumed within {deadline} but only got {consumed.Count}."); + Assert.True(ids.All(consumed.ContainsKey), "Some message correlation ids were never observed."); + } + finally + { + await bus.DisposeAsync(); + } + } + + [Fact] + [Trait("Category", "Stress")] + public async Task SustainedPublishUnderConcurrency_NoChannelOrConnectionFaults() + { + if (!StressEnabled) + { + return; + } + + // Many publishers fan out concurrently against the same producer instance. + // The producer's channel pool / connection lifecycle must not surface + // CHANNEL_ERROR or AlreadyClosedException under sustained pressure. + const int publishers = 16; + const int perPublisher = 100; + const int total = publishers * perPublisher; + var deadline = TimeSpan.FromMinutes(2); + + var queueName = _fixture.GetUniqueQueueName("soak-fanout"); + var errorQueueName = _fixture.GetUniqueQueueName("soak-fanout-eq"); + + var consumed = 0; + + var handlerReferences = new List + { + new() + { + HandlerType = typeof(CallbackHandler), + MessageType = typeof(TestMessage), + }, + }; + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>(handlerReferences); + services.AddTransient>(_ => + new CallbackHandler(_ => Interlocked.Increment(ref consumed))); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => + { + q.QueueName = queueName; + q.ErrorQueueName = errorQueueName; + }); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + }); + + await using var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + await bus.StartConsumingAsync(); + + try + { + var publisherTasks = Enumerable.Range(0, publishers).Select(p => Task.Run(async () => + { + for (var i = 0; i < perPublisher; i++) + { + await bus.PublishAsync(new TestMessage(Guid.NewGuid()) { Content = $"p{p}-i{i}" }); + } + })).ToArray(); + + await Task.WhenAll(publisherTasks); + + var allReceived = await TestPolling.WaitUntilAsync( + () => Task.FromResult(Volatile.Read(ref consumed) >= total), + deadline, + TimeSpan.FromMilliseconds(250)); + + Assert.True( + allReceived, + $"Expected {total} messages consumed within {deadline} but only got {Volatile.Read(ref consumed)}."); + } + finally + { + await bus.DisposeAsync(); + } + } +} diff --git a/src/ServiceConnect.EndToEndTests/Telemetry/TelemetryE2ETests.cs b/src/ServiceConnect.EndToEndTests/Telemetry/TelemetryE2ETests.cs new file mode 100644 index 000000000..ac9dfd249 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/Telemetry/TelemetryE2ETests.cs @@ -0,0 +1,128 @@ +using System.Diagnostics; +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.EndToEndTests.Fixtures; +using ServiceConnect.Interfaces; +using ServiceConnect.Telemetry; +using Xunit; + +namespace ServiceConnect.EndToEndTests.Telemetry; + +/// +/// Minimal message type for trace-correlation end-to-end testing. +/// Declared here (not in Messages/) so it binds to a unique exchange +/// and does not cross-contaminate with TestMessage-based collections. +/// +public sealed class TraceTestMessage(Guid correlationId) : Message(correlationId); + +file sealed class TraceTestHandler(TaskCompletionSource consumed) : IMessageHandler +{ + private readonly TaskCompletionSource _consumed = consumed; + + public Task HandleAsync(TraceTestMessage message, IConsumeContext context, CancellationToken cancellationToken = default) + { + _consumed.TrySetResult(); + return Task.CompletedTask; + } +} + +[Collection(nameof(MessagingCollection))] +public class TelemetryE2ETests(MessagingFixture fixture) +{ + private readonly MessagingFixture _fixture = fixture; + + [Fact] + [Trait("Category", "Docker")] + public async Task Publish_then_consume_correlates_trace_ids_via_AddTelemetry() + { + var publishSpans = new List(); + var consumeSpans = new List(); + + using var listener = new ActivityListener + { + ShouldListenTo = static src => src.Name == ServiceConnectActivitySource.ActivitySourceName, + Sample = static (ref ActivityCreationOptions _) => ActivitySamplingResult.AllData, + ActivityStopped = a => + { + if (a.Kind == ActivityKind.Producer) + { + publishSpans.Add(a); + } + else if (a.Kind == ActivityKind.Consumer) + { + consumeSpans.Add(a); + } + }, + }; + ActivitySource.AddActivityListener(listener); + + var consumed = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var queueName = _fixture.GetUniqueQueueName("telemetry-e2e"); + + var handlerReferences = new List + { + new() { HandlerType = typeof(TraceTestHandler), MessageType = typeof(TraceTestMessage) }, + }; + + var services = new ServiceCollection(); + services.AddLogging(); + services.AddSingleton>(handlerReferences); + services.AddSingleton(consumed); + services.AddTransient, TraceTestHandler>(); + + services.AddServiceConnect(builder => + { + builder.UseRabbitMQ(t => + { + t.Host = _fixture.RabbitMqHostname; + t.Username = _fixture.RabbitMqUsername; + t.Password = _fixture.RabbitMqPassword; + t.SetClientSetting("Port", _fixture.RabbitMqPort); + t.SetClientSetting("RetryCount", 3); + t.SetClientSetting("RetrySeconds", 1); + t.SslEnabled = false; // Testcontainers RabbitMQ runs plaintext + }); + builder.ConfigureQueues(q => q.QueueName = queueName); + builder.ConfigureTransport(t => t.MaxRetries = 0); + builder.ConfigureBus(b => b.ScanForMessageHandlers = false); + builder.AddTelemetry(); + }); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetRequiredService(); + + await bus.StartConsumingAsync(); + + try + { + await bus.PublishAsync(new TraceTestMessage(Guid.NewGuid())); + await consumed.Task.WaitAsync(TimeSpan.FromSeconds(30)); + + // Allow a brief delay so the consume Activity is Stop()'d before assertions. + // ActivityStopped fires after the handler returns and the consume span is + // closed by the pipeline; without this, consumeSpans may be empty even + // though the TaskCompletionSource is already signalled. + await Task.Delay(TimeSpan.FromMilliseconds(250)); + + var publishSpan = Assert.Single(publishSpans); + var consumeSpan = Assert.Single(consumeSpans); + + // The W3C traceparent injected into the publish headers carries both the + // TraceId and the publish SpanId. The consume middleware extracts them and + // starts the consume span with the publish span as parent, so: + // consume.TraceId == publish.TraceId + // consume.ParentSpanId == publish.SpanId + Assert.Equal(publishSpan.TraceId, consumeSpan.TraceId); + Assert.Equal(publishSpan.SpanId, consumeSpan.ParentSpanId); + } + finally + { + await bus.DisposeAsync(); + if (provider is IAsyncDisposable asyncProvider) + { + await asyncProvider.DisposeAsync(); + } + } + } +} diff --git a/src/ServiceConnect.EndToEndTests/xunit.runner.json b/src/ServiceConnect.EndToEndTests/xunit.runner.json new file mode 100644 index 000000000..86ee13ff5 --- /dev/null +++ b/src/ServiceConnect.EndToEndTests/xunit.runner.json @@ -0,0 +1,5 @@ +{ + "$schema": "https://xunit.net/schema/current/xunit.runner.schema.json", + "parallelizeTestCollections": true, + "maxParallelThreads": 8 +} diff --git a/src/ServiceConnect.HealthChecks/BusConsumingHealthCheck.cs b/src/ServiceConnect.HealthChecks/BusConsumingHealthCheck.cs new file mode 100644 index 000000000..34952ff97 --- /dev/null +++ b/src/ServiceConnect.HealthChecks/BusConsumingHealthCheck.cs @@ -0,0 +1,150 @@ +using System.Runtime.CompilerServices; +using Microsoft.Extensions.Diagnostics.HealthChecks; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.HealthChecks; + +/// +/// Reports Healthy when is , OR when the +/// bus has been observed Healthy within the configured recovery-grace window AND the underlying +/// consumer has not been broker-cancelled. Recovery grace ensures a momentary broker disconnect +/// (auto-recovery, network blip, broker bounce) does not crash-loop pods wired on liveness probes. +/// O(1), allocation-light, side-effect-free — does not perform broker I/O. +/// +/// +/// +/// The grace window is meant for readiness probes; liveness probes that want immediate flip on +/// disconnect should use a zero-grace window (or rely on the broker-cancelled short-circuit which +/// always bypasses grace). +/// +/// +/// First-probe behaviour: a check that has never observed Healthy returns Unhealthy regardless +/// of the grace window. There is no equivalent to +/// for a consumer; a never-Healthy consumer is genuinely unhealthy, not lazy. +/// +/// +public sealed class BusConsumingHealthCheck : IHealthCheck +{ + // Per-IBus recovery state. The bus is a DI singleton (stable identity across + // probes), so a ConditionalWeakTable keyed on it bridges the per-probe re-alloc + // that PerProviderCache + HealthCheckService impose: each probe runs against a + // fresh IServiceScope.ServiceProvider, so the cache produces a new check instance + // per probe; without an external state table, the instance-scoped LastHealthyTicks + // resets to 0 every probe and the grace window never triggers. CWT keys by + // reference identity and tracks GC reachability, so a rebuilt SP-with-new-IBus + // gets a fresh state and the prior state becomes GC-eligible. + private static readonly ConditionalWeakTable RecoveryStateByBus = []; + + private readonly IBus _bus; + private readonly IConsumer? _consumer; + private readonly TimeSpan _recoveryGraceWindow; + private readonly TimeProvider _timeProvider; + private readonly HealthCheckRecoveryState _recoveryState; + + /// + /// Default 30-second recovery grace; system ; no consumer + /// supplied (no broker-cancelled short-circuit). + /// + public BusConsumingHealthCheck(IBus bus) + : this(bus, consumer: null, recoveryGraceWindow: TimeSpan.FromSeconds(30), timeProvider: TimeProvider.System) + { + } + + /// + /// Configurable recovery-grace window and optional consumer for broker-cancelled short-circuit. + /// + /// Bus to observe via . + /// + /// Optional consumer; when supplied, short-circuits + /// the grace path so a permanent broker-cancellation flips Unhealthy immediately. + /// + /// + /// Window after the most recent Healthy observation during which a transient + /// =false observation continues to report Healthy. + /// Pass to disable grace. + /// + /// used for grace-window measurement; injectable for tests. + public BusConsumingHealthCheck( + IBus bus, + IConsumer? consumer, + TimeSpan recoveryGraceWindow, + TimeProvider timeProvider) + { + ArgumentNullException.ThrowIfNull(bus); + ArgumentNullException.ThrowIfNull(timeProvider); + if (recoveryGraceWindow < TimeSpan.Zero) + { + throw new ArgumentOutOfRangeException(nameof(recoveryGraceWindow), + "Recovery grace window must be non-negative; pass TimeSpan.Zero to disable grace."); + } + _bus = bus; + _consumer = consumer; + _recoveryGraceWindow = recoveryGraceWindow; + _timeProvider = timeProvider; + _recoveryState = RecoveryStateByBus.GetValue(bus, static _ => new HealthCheckRecoveryState()); + } + + /// + public Task CheckHealthAsync( + HealthCheckContext context, + CancellationToken cancellationToken = default) + { + cancellationToken.ThrowIfCancellationRequested(); + + if (_bus.IsConsuming) + { + // Stamp the last-Healthy timestamp on every Healthy observation so the grace + // window measures from "most recent Healthy" rather than "first ever Healthy". + // Interlocked.Exchange (not Volatile.Write) because long writes are not atomic + // on 32-bit runtimes (.NET Framework x86, some embedded ARM32). A torn 8-byte + // write could materialise a half-written ticks value outside DateTimeOffset's + // legal range, which the reader's ctor below would AOORE on. The 64-bit fence + // costs ~1ns per probe and removes the 32-bit hazard entirely. + Interlocked.Exchange(ref _recoveryState.LastHealthyTicks, _timeProvider.GetUtcNow().UtcTicks); + return Task.FromResult(HealthCheckResult.Healthy("Bus is consuming.")); + } + + // Broker-cancelled is a permanent failure — bypass grace. Prefer the explicit + // IConsumer signal when supplied; otherwise consult IBus.IsCancelledByBroker so + // the parameterless-ctor path also short-circuits on broker basic.cancel events + // (queue deleted, policy expired, mirror promoted) without waiting out the grace + // window. Both signals reduce to the same underlying IConsumer.IsCancelledByBroker. + if (_consumer is { IsCancelledByBroker: true } || _bus.IsCancelledByBroker) + { + var brokerFailureStatus = context.Registration?.FailureStatus ?? HealthStatus.Unhealthy; + return Task.FromResult(new HealthCheckResult(brokerFailureStatus, + "Bus is not consuming (broker cancelled the consumer).")); + } + + // Intentional shutdown is a permanent failure — bypass grace. The grace window is + // meant to absorb transient disconnects where reconnect can recover; once the bus + // has been stopped or disposed there is no recovery to wait for, so a probe that + // reports Healthy here would mask a permanently-dead bus for the grace duration. + if (_bus.IsStopped) + { + var stoppedFailureStatus = context.Registration?.FailureStatus ?? HealthStatus.Unhealthy; + return Task.FromResult(new HealthCheckResult(stoppedFailureStatus, + "Bus is not consuming (stopped or disposed).")); + } + + // Recovery grace: if we've observed Healthy at some point AND we're within the + // grace window, return Healthy with a note. Per-bus state survives the per-probe + // re-alloc so a momentary disconnect does not flip Unhealthy and crash-loop the pod. + // Interlocked.Read pairs with Interlocked.Exchange above — 8-byte atomic on every + // architecture, including 32-bit. Volatile.Read on a long does NOT guarantee atomic + // read on 32-bit. + var lastHealthy = Interlocked.Read(ref _recoveryState.LastHealthyTicks); + if (lastHealthy != 0 && _recoveryGraceWindow > TimeSpan.Zero) + { + var age = _timeProvider.GetUtcNow() - new DateTimeOffset(lastHealthy, TimeSpan.Zero); + if (age < _recoveryGraceWindow) + { + return Task.FromResult(HealthCheckResult.Healthy( + $"Bus is not consuming, but within recovery grace ({age:c} < {_recoveryGraceWindow:c}).")); + } + } + + var failureStatus = context.Registration?.FailureStatus ?? HealthStatus.Unhealthy; + return Task.FromResult(new HealthCheckResult(failureStatus, "Bus is not consuming.")); + } +} diff --git a/src/ServiceConnect.HealthChecks/ConsumerConnectionHealthCheck.cs b/src/ServiceConnect.HealthChecks/ConsumerConnectionHealthCheck.cs new file mode 100644 index 000000000..ef8a4ab29 --- /dev/null +++ b/src/ServiceConnect.HealthChecks/ConsumerConnectionHealthCheck.cs @@ -0,0 +1,125 @@ +using System.Runtime.CompilerServices; +using Microsoft.Extensions.Diagnostics.HealthChecks; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.HealthChecks; + +/// +/// Reports Unhealthy when the broker has cancelled the consumer; otherwise Healthy when +/// is ; otherwise grace window +/// applies (Healthy if within the window since the last observed-Healthy probe, Unhealthy +/// once the window expires or if the consumer has never been observed Healthy). +/// Recovery grace ensures a momentary disconnect (auto-recovery, network blip) does not +/// crash-loop pods wired on liveness probes. +/// O(1), allocation-light, side-effect-free — does not perform broker I/O. +/// +/// +/// First-probe behaviour: a check that has never observed Healthy returns Unhealthy regardless +/// of the grace window. The grace is meant for readiness probes. +/// +public sealed class ConsumerConnectionHealthCheck : IHealthCheck +{ + // Per-IConsumer recovery state. Mirrors BusConsumingHealthCheck — see the comment + // there for the per-probe re-allocation rationale that motivates the external + // ConditionalWeakTable. + private static readonly ConditionalWeakTable RecoveryStateByConsumer = []; + + private readonly IConsumer _consumer; + private readonly TimeSpan _recoveryGraceWindow; + private readonly TimeProvider _timeProvider; + private readonly HealthCheckRecoveryState _recoveryState; + + /// + /// Default 30-second recovery grace; system . + /// + public ConsumerConnectionHealthCheck(IConsumer consumer) + : this(consumer, recoveryGraceWindow: TimeSpan.FromSeconds(30), timeProvider: TimeProvider.System) + { + } + + /// + /// Configurable recovery-grace window and injectable for tests. + /// + /// Consumer to observe via . + /// + /// Window after the most recent Healthy observation during which a transient + /// =false observation continues to report Healthy. + /// Pass to disable grace. + /// + /// used for grace-window measurement; injectable for tests. + public ConsumerConnectionHealthCheck( + IConsumer consumer, + TimeSpan recoveryGraceWindow, + TimeProvider timeProvider) + { + ArgumentNullException.ThrowIfNull(consumer); + ArgumentNullException.ThrowIfNull(timeProvider); + if (recoveryGraceWindow < TimeSpan.Zero) + { + throw new ArgumentOutOfRangeException(nameof(recoveryGraceWindow), + "Recovery grace window must be non-negative; pass TimeSpan.Zero to disable grace."); + } + _consumer = consumer; + _recoveryGraceWindow = recoveryGraceWindow; + _timeProvider = timeProvider; + _recoveryState = RecoveryStateByConsumer.GetValue(consumer, static _ => new HealthCheckRecoveryState()); + } + + /// + public Task CheckHealthAsync( + HealthCheckContext context, + CancellationToken cancellationToken = default) + { + cancellationToken.ThrowIfCancellationRequested(); + + // Broker-cancelled is a permanent failure — bypass grace and the IsConnected + // check. basic.cancel (queue deleted, policy expired, mirror promoted) tears down + // the consumer registration but leaves the AMQP TCP connection up, so IsConnected + // can remain true while deliveries have stopped. Checking broker-cancel first + // ensures readiness probes remove the pod from the load balancer immediately. + if (_consumer.IsCancelledByBroker) + { + var brokerFailureStatus = context.Registration?.FailureStatus ?? HealthStatus.Unhealthy; + return Task.FromResult(new HealthCheckResult(brokerFailureStatus, + "Consumer connection is closed (broker cancelled the consumer).")); + } + + if (_consumer.IsConnected) + { + // Interlocked.Exchange (not Volatile.Write) because long writes are not atomic + // on 32-bit runtimes (.NET Framework x86, some embedded ARM32). A torn 8-byte + // write could materialise a half-written ticks value outside DateTimeOffset's + // legal range, which the reader's ctor below would AOORE on. Matches the + // BusConsumingHealthCheck pattern. + Interlocked.Exchange(ref _recoveryState.LastHealthyTicks, _timeProvider.GetUtcNow().UtcTicks); + return Task.FromResult(HealthCheckResult.Healthy("Consumer connection is open.")); + } + + // Intentional shutdown is a permanent failure — bypass grace. The grace window + // is meant to absorb transient disconnects where reconnect can recover; once the + // consumer has been stopped or disposed there is no recovery to wait for. + if (_consumer.IsStopped) + { + var stoppedFailureStatus = context.Registration?.FailureStatus ?? HealthStatus.Unhealthy; + return Task.FromResult(new HealthCheckResult(stoppedFailureStatus, + "Consumer connection is closed (stopped or disposed).")); + } + + // Interlocked.Read pairs with Interlocked.Exchange above — 8-byte atomic on every + // architecture, including 32-bit. Volatile.Read on a long does NOT guarantee an + // atomic read on 32-bit. + var lastHealthy = Interlocked.Read(ref _recoveryState.LastHealthyTicks); + if (lastHealthy != 0 && _recoveryGraceWindow > TimeSpan.Zero) + { + var age = _timeProvider.GetUtcNow() - new DateTimeOffset(lastHealthy, TimeSpan.Zero); + if (age < _recoveryGraceWindow) + { + return Task.FromResult(HealthCheckResult.Healthy( + $"Consumer connection is closed, but within recovery grace ({age:c} < {_recoveryGraceWindow:c}).")); + } + } + + var failureStatus = context.Registration?.FailureStatus ?? HealthStatus.Unhealthy; + return Task.FromResult(new HealthCheckResult(failureStatus, "Consumer connection is closed.")); + } +} diff --git a/src/ServiceConnect.HealthChecks/HealthCheckRecoveryState.cs b/src/ServiceConnect.HealthChecks/HealthCheckRecoveryState.cs new file mode 100644 index 000000000..c8f063887 --- /dev/null +++ b/src/ServiceConnect.HealthChecks/HealthCheckRecoveryState.cs @@ -0,0 +1,23 @@ +namespace ServiceConnect.HealthChecks; + +/// +/// Mutable per-bus / per-consumer state used by the recovery-grace window. Lives +/// outside the IHealthCheck instance so it survives the per-probe re-allocation +/// that the framework's HealthCheckService imposes — each probe runs against a +/// fresh IServiceScope, so the scope's IServiceProvider is a different key in +/// on every probe and the cache produces a fresh +/// check instance each time. Without an external state object, an instance-scoped +/// LastHealthyTicks would reset to 0 every probe and the grace window would never +/// trigger. +/// +internal sealed class HealthCheckRecoveryState +{ + /// + /// UTC ticks of the most recent Healthy observation. Zero means never-observed-Healthy + /// since this state instance was created. Use Interlocked.Exchange and + /// Interlocked.Read for cross-thread visibility — long reads/writes are not + /// atomic on 32-bit runtimes, so a plain read + /// could observe a torn ticks value. + /// + public long LastHealthyTicks; +} diff --git a/src/ServiceConnect.HealthChecks/HealthChecksBuilderExtensions.cs b/src/ServiceConnect.HealthChecks/HealthChecksBuilderExtensions.cs new file mode 100644 index 000000000..b8ada0117 --- /dev/null +++ b/src/ServiceConnect.HealthChecks/HealthChecksBuilderExtensions.cs @@ -0,0 +1,307 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Diagnostics.HealthChecks; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.HealthChecks; + +/// +/// Extension methods on for registering +/// ServiceConnect health checks. Each method registers exactly one check. +/// Pick the methods that match what your host actually does — a publish-only +/// host should not register the consumer check, a consume-only host should +/// not register the producer check. +/// +public static class HealthChecksBuilderExtensions +{ + // ── Bus ───────────────────────────────────────────────────────────────── + + /// + /// Registers a health check that reports Healthy when the bus is consuming + /// (). Resolves from the + /// DI container via . + /// + public static IHealthChecksBuilder AddServiceConnectBus( + this IHealthChecksBuilder builder, + string name = "serviceconnect-bus", + HealthStatus failureStatus = HealthStatus.Unhealthy, + IEnumerable? tags = null, + TimeSpan? timeout = null) + => builder.AddServiceConnectBus(name, + sp => sp.GetRequiredService(), + failureStatus, tags, timeout); + + /// + /// Registers a bus-consuming health check resolving the bus via a keyed-services key. + /// Convenience wrapper over the factory overload for hosts using + /// . + /// + /// + /// Threads the same through to the broker-cancelled + /// short-circuit's resolution so multi-bus hosts (where both + /// and are keyed) get the right consumer. + /// Without this, the keyed bus probes against the unkeyed default consumer and the + /// short-circuit fires for the wrong transport. + /// + public static IHealthChecksBuilder AddServiceConnectBus( + this IHealthChecksBuilder builder, + string name, + object serviceKey, + HealthStatus failureStatus = HealthStatus.Unhealthy, + IEnumerable? tags = null, + TimeSpan? timeout = null) + => builder.AddServiceConnectBus(name, + sp => sp.GetRequiredKeyedService(serviceKey), + recoveryGraceWindow: TimeSpan.FromSeconds(30), + timeProvider: null, + consumerFactory: sp => sp.GetKeyedService(serviceKey), + failureStatus, + tags, + timeout); + + /// + /// Registers a bus-consuming health check resolving the bus via a factory function. + /// Use this for non-DI-resolved buses or for custom keyed-services patterns. + /// The factory runs on every probe; the underlying singleton + /// is cached by the supplied . + /// + /// + /// The check also opportunistically resolves from the + /// supplied so the broker-cancelled short-circuit + /// works for third-party implementations that don't surface + /// via the default-interface-method + /// (the DIM returns by default; a custom + /// that doesn't override it would otherwise sit in the recovery grace window + /// indefinitely after a permanent broker-cancellation). When no + /// is registered the consumer is null and the check + /// falls back to the bus DIM only — first-party Bus implementations do override + /// the DIM correctly, so the only path with no broker-cancel signal is a + /// third-party host that registers neither nor an + /// override of . + /// + public static IHealthChecksBuilder AddServiceConnectBus( + this IHealthChecksBuilder builder, + string name, + Func busFactory, + HealthStatus failureStatus = HealthStatus.Unhealthy, + IEnumerable? tags = null, + TimeSpan? timeout = null) + { + ArgumentNullException.ThrowIfNull(builder); + ArgumentNullException.ThrowIfNull(busFactory); + // Cache the wrapper per IServiceProvider via ConditionalWeakTable. A naive + // LazyInitializer.EnsureInitialized would capture a closure-cached instance that + // outlives the resolving IServiceProvider, so rebuilt providers would probe an + // old disposed bus from a stale check. The per-SP cache here both (a) lets a + // rebuilt SP become GC-eligible and get a fresh check on next probe, and + // (b) preserves the recovery-grace state (instance-scoped _lastHealthyTicks is + // stable across probes against the same SP). + var cache = new PerProviderCache( + sp => new BusConsumingHealthCheck( + busFactory(sp), + sp.GetService(), + recoveryGraceWindow: TimeSpan.FromSeconds(30), + timeProvider: TimeProvider.System)); + return builder.Add(new HealthCheckRegistration( + name, + cache.Resolve, + failureStatus, + tags, + timeout)); + } + + /// + /// Registers a bus-consuming health check with a configurable recovery-grace window and + /// optional . Use this overload when the host needs deterministic + /// time control (tests with FakeTimeProvider) or a non-default grace window. An optional + /// consumer factory threads the broker-cancelled short-circuit through, so a permanent + /// broker-cancellation flips Unhealthy without waiting out the grace window. + /// + public static IHealthChecksBuilder AddServiceConnectBus( + this IHealthChecksBuilder builder, + string name, + Func busFactory, + TimeSpan recoveryGraceWindow, + TimeProvider? timeProvider = null, + Func? consumerFactory = null, + HealthStatus failureStatus = HealthStatus.Unhealthy, + IEnumerable? tags = null, + TimeSpan? timeout = null) + { + ArgumentNullException.ThrowIfNull(builder); + ArgumentNullException.ThrowIfNull(busFactory); + // Per-SP cache so the recovery-grace _lastHealthyTicks accumulates across probes; + // the SP-rebuild contract is preserved via ConditionalWeakTable's GC semantics. + var cache = new PerProviderCache(sp => new BusConsumingHealthCheck( + busFactory(sp), + consumerFactory?.Invoke(sp), + recoveryGraceWindow, + timeProvider ?? TimeProvider.System)); + return builder.Add(new HealthCheckRegistration( + name, + cache.Resolve, + failureStatus, + tags, + timeout)); + } + + // ── Consumer ──────────────────────────────────────────────────────────── + + /// + /// Registers a health check that reports Healthy when the consumer connection + /// is open (). Resolves + /// from the DI container via . + /// + public static IHealthChecksBuilder AddServiceConnectConsumer( + this IHealthChecksBuilder builder, + string name = "serviceconnect-consumer", + HealthStatus failureStatus = HealthStatus.Unhealthy, + IEnumerable? tags = null, + TimeSpan? timeout = null) + => builder.AddServiceConnectConsumer(name, + sp => sp.GetRequiredService(), + failureStatus, tags, timeout); + + /// + /// Registers a consumer-connection health check resolving the consumer via a keyed-services key. + /// Convenience wrapper over the factory overload for hosts using + /// . + /// + public static IHealthChecksBuilder AddServiceConnectConsumer( + this IHealthChecksBuilder builder, + string name, + object serviceKey, + HealthStatus failureStatus = HealthStatus.Unhealthy, + IEnumerable? tags = null, + TimeSpan? timeout = null) + => builder.AddServiceConnectConsumer(name, + sp => sp.GetRequiredKeyedService(serviceKey), + failureStatus, tags, timeout); + + /// + /// Registers a consumer-connection health check resolving the consumer via a factory function. + /// Use this for non-DI-resolved consumers or for custom keyed-services patterns. + /// The factory runs on every probe; the underlying singleton + /// is cached by the supplied . + /// + public static IHealthChecksBuilder AddServiceConnectConsumer( + this IHealthChecksBuilder builder, + string name, + Func consumerFactory, + HealthStatus failureStatus = HealthStatus.Unhealthy, + IEnumerable? tags = null, + TimeSpan? timeout = null) + { + ArgumentNullException.ThrowIfNull(builder); + ArgumentNullException.ThrowIfNull(consumerFactory); + // Per-SP cache; see PerProviderCache xmldoc for the rebuild-vs-grace composition rationale. + var cache = new PerProviderCache( + sp => new ConsumerConnectionHealthCheck(consumerFactory(sp))); + return builder.Add(new HealthCheckRegistration( + name, + cache.Resolve, + failureStatus, + tags, + timeout)); + } + + /// + /// Registers a consumer-connection health check with a configurable recovery-grace window + /// and optional . Use this overload when the host needs + /// deterministic time control (tests with FakeTimeProvider) or a non-default grace window. + /// + public static IHealthChecksBuilder AddServiceConnectConsumer( + this IHealthChecksBuilder builder, + string name, + Func consumerFactory, + TimeSpan recoveryGraceWindow, + TimeProvider? timeProvider = null, + HealthStatus failureStatus = HealthStatus.Unhealthy, + IEnumerable? tags = null, + TimeSpan? timeout = null) + { + ArgumentNullException.ThrowIfNull(builder); + ArgumentNullException.ThrowIfNull(consumerFactory); + // Per-SP cache so the recovery-grace _lastHealthyTicks accumulates across probes. + var cache = new PerProviderCache(sp => new ConsumerConnectionHealthCheck( + consumerFactory(sp), + recoveryGraceWindow, + timeProvider ?? TimeProvider.System)); + return builder.Add(new HealthCheckRegistration( + name, + cache.Resolve, + failureStatus, + tags, + timeout)); + } + + // ── Producer ──────────────────────────────────────────────────────────── + + /// + /// Registers a health check that reports Healthy when the producer connection + /// is open (). Resolves + /// from the DI container via . + /// + /// + /// The producer connects lazily on the first publish/send call. Hosts that + /// do not publish at startup should not register this check on a readiness + /// tag — it would report Unhealthy until the first outbound message. + /// + public static IHealthChecksBuilder AddServiceConnectProducer( + this IHealthChecksBuilder builder, + string name = "serviceconnect-producer", + HealthStatus failureStatus = HealthStatus.Unhealthy, + IEnumerable? tags = null, + TimeSpan? timeout = null) + => builder.AddServiceConnectProducer(name, + sp => sp.GetRequiredService(), + failureStatus, tags, timeout); + + /// + /// Registers a producer-connection health check resolving the producer via a keyed-services key. + /// Convenience wrapper over the factory overload for hosts using + /// . + /// + public static IHealthChecksBuilder AddServiceConnectProducer( + this IHealthChecksBuilder builder, + string name, + object serviceKey, + HealthStatus failureStatus = HealthStatus.Unhealthy, + IEnumerable? tags = null, + TimeSpan? timeout = null) + => builder.AddServiceConnectProducer(name, + sp => sp.GetRequiredKeyedService(serviceKey), + failureStatus, tags, timeout); + + /// + /// Registers a producer-connection health check resolving the producer via a factory function. + /// Use this for non-DI-resolved producers or for custom keyed-services patterns. + /// The factory runs on every probe; the underlying singleton + /// is cached by the supplied . + /// + /// + /// The producer connects lazily on the first publish/send call. Hosts that + /// do not publish at startup should not register this check on a readiness + /// tag — it would report Unhealthy until the first outbound message. + /// + public static IHealthChecksBuilder AddServiceConnectProducer( + this IHealthChecksBuilder builder, + string name, + Func producerFactory, + HealthStatus failureStatus = HealthStatus.Unhealthy, + IEnumerable? tags = null, + TimeSpan? timeout = null) + { + ArgumentNullException.ThrowIfNull(builder); + ArgumentNullException.ThrowIfNull(producerFactory); + // Producer check has no instance state today (no grace window) but caching + // for symmetry: rebuilt SP gets a fresh check; per-SP probes share one wrapper. + var cache = new PerProviderCache( + sp => new ProducerConnectionHealthCheck(producerFactory(sp))); + return builder.Add(new HealthCheckRegistration( + name, + cache.Resolve, + failureStatus, + tags, + timeout)); + } +} diff --git a/src/ServiceConnect.HealthChecks/PerProviderCache.cs b/src/ServiceConnect.HealthChecks/PerProviderCache.cs new file mode 100644 index 000000000..ee1bfe67a --- /dev/null +++ b/src/ServiceConnect.HealthChecks/PerProviderCache.cs @@ -0,0 +1,26 @@ +using System.Runtime.CompilerServices; + +namespace ServiceConnect.HealthChecks; + +/// +/// Caches one instance of per . +/// Backing store is a keyed by SP, so +/// when a host rebuilds its provider the old SP becomes unreachable and the cached +/// instance is GC-eligible — the next probe against the new SP allocates a fresh one. +/// +/// +/// This composes the recovery-grace window (state lives on the check instance) with the +/// rebuilt-IServiceProvider contract (a rebuilt SP gets a fresh check). A literal "fresh +/// wrapper per probe" implementation would defeat the grace window because each probe +/// would allocate a new check with a zero-initialised _lastHealthyTicks. Caching +/// per-SP gives the check stable state across probes while still allowing rebuilt SPs +/// to allocate a new check on first use. +/// +internal sealed class PerProviderCache(Func factory) where T : class +{ + private readonly ConditionalWeakTable _cache = []; + private readonly Func _factory = factory; + + public T Resolve(IServiceProvider sp) => + _cache.GetValue(sp, key => _factory(key)); +} diff --git a/src/ServiceConnect.HealthChecks/ProducerConnectionHealthCheck.cs b/src/ServiceConnect.HealthChecks/ProducerConnectionHealthCheck.cs new file mode 100644 index 000000000..89669b2b9 --- /dev/null +++ b/src/ServiceConnect.HealthChecks/ProducerConnectionHealthCheck.cs @@ -0,0 +1,62 @@ +using Microsoft.Extensions.Diagnostics.HealthChecks; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.HealthChecks; + +/// +/// Reports Healthy when is , +/// OR when the producer has not yet attempted any connection (lazy-connect state). +/// O(1), allocation-light, side-effect-free — does not perform broker I/O. +/// +/// +/// The producer connects lazily on the first publish/send call. The "never attempted" +/// state is treated as Healthy so a readiness probe that runs before the first publish +/// does not crash-loop the pod; the check transitions to +/// only once a publish has been attempted and failed. +/// +public sealed class ProducerConnectionHealthCheck : IHealthCheck +{ + private readonly IProducer _producer; + + /// + /// Creates a check that observes the supplied . + /// + public ProducerConnectionHealthCheck(IProducer producer) + { + ArgumentNullException.ThrowIfNull(producer); + _producer = producer; + } + + /// + public Task CheckHealthAsync( + HealthCheckContext context, + CancellationToken cancellationToken = default) + { + cancellationToken.ThrowIfCancellationRequested(); + + // Single-snapshot read: reading IsHealthy and HasAttemptedConnection separately + // would let a publish-success transition between the reads (T2 sets both) surface + // to a probe (T1) as IsHealthy=false (stale) + HasAttemptedConnection=true (fresh) + // — a false-negative Unhealthy. GetHealthSnapshot reads the pair atomically (or, + // for third-party producers using the default impl, at least produces a typed + // result that future maintainers can spot as the pair-read site). + var snapshot = _producer.GetHealthSnapshot(); + + if (snapshot.IsHealthy) + { + return Task.FromResult(HealthCheckResult.Healthy("Producer connection is open.")); + } + + if (!snapshot.HasAttemptedConnection) + { + // Producer connects lazily on the first publish/send. Until that happens, + // "no connection" is the expected state, not a fault — readiness probes + // shouldn't crash-loop pods that haven't published yet. + return Task.FromResult(HealthCheckResult.Healthy( + "Producer has not yet attempted connection (lazy).")); + } + + var failureStatus = context.Registration?.FailureStatus ?? HealthStatus.Unhealthy; + return Task.FromResult(new HealthCheckResult(failureStatus, "Producer connection is closed.")); + } +} diff --git a/src/ServiceConnect.HealthChecks/ServiceConnect.HealthChecks.csproj b/src/ServiceConnect.HealthChecks/ServiceConnect.HealthChecks.csproj new file mode 100644 index 000000000..4992289f4 --- /dev/null +++ b/src/ServiceConnect.HealthChecks/ServiceConnect.HealthChecks.csproj @@ -0,0 +1,21 @@ + + + + enable + enable + ServiceConnect.HealthChecks + ServiceConnect.HealthChecks + ServiceConnect.HealthChecks + Health-check integrations for ServiceConnect. Three opt-in IHealthCheck classes for Microsoft.Extensions.Diagnostics.HealthChecks: bus liveness (IBus.IsConsuming), consumer connection (IConsumer.IsConnected) and producer connection (IProducer.IsHealthy). Transport-agnostic. + ServiceConnect;HealthChecks;Liveness;Readiness;MessageBus;Messaging;Message;Bus;Service + + + + + + + + + + + diff --git a/src/ServiceConnect.IntegrationTests/Bus/BusSetupTests.cs b/src/ServiceConnect.IntegrationTests/Bus/BusSetupTests.cs deleted file mode 100644 index a2aa8a578..000000000 --- a/src/ServiceConnect.IntegrationTests/Bus/BusSetupTests.cs +++ /dev/null @@ -1,68 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using ServiceConnect.Client.RabbitMQ; -using ServiceConnect.Container.Default; -using ServiceConnect.Interfaces; -using ServiceConnect.Persistance.SqlServer; -using Xunit; - -namespace ServiceConnect.IntegrationTests.Bus -{ - public class BusSetupTests - { - public class TestHandler : IMessageHandler - { - public IConsumeContext Context { get; set; } - public void Execute(Message message) - { - throw new System.NotImplementedException(); - } - } - - [Fact] - public void ShouldSetupBusWithDefaultConfiguration() - { - // Arrange / Act - IBus bus = ServiceConnect.Bus.Initialize(); - - // Assert - Assert.Equal(typeof(Consumer), bus.Configuration.ConsumerType); - Assert.Equal(typeof(Producer), bus.Configuration.ProducerType); - Assert.Same(typeof(DefaultBusContainer), bus.Configuration.GetContainer().GetType()); - Assert.Equal(typeof(SqlServerProcessManagerFinder), bus.Configuration.ProcessManagerFinder); - - bus.StopConsuming(); - bus.Dispose(); - } - - [Fact] - public void ShouldResolveHandlerFromDefaultContainer() - { - // Arrange - IBus bus = ServiceConnect.Bus.Initialize(); - - // Act - var result = bus.Configuration.GetContainer().GetInstance>(); - - // Assert - Assert.NotNull(result); - - bus.StopConsuming(); - bus.Dispose(); - } - } -} diff --git a/src/ServiceConnect.IntegrationTests/MongoDbProcessManagerFinderTests.cs b/src/ServiceConnect.IntegrationTests/MongoDbProcessManagerFinderTests.cs deleted file mode 100644 index c56b47a5e..000000000 --- a/src/ServiceConnect.IntegrationTests/MongoDbProcessManagerFinderTests.cs +++ /dev/null @@ -1,151 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using MongoDB.Driver; -using MongoDB.Driver.Builders; -using ServiceConnect.Core; -using ServiceConnect.Interfaces; -using ServiceConnect.Persistance.MongoDb; -using Xunit; - -namespace ServiceConnect.IntegrationTests -{ - public class TestData : IProcessManagerData - { - public Guid CorrelationId { get; set; } - public string Name { get; set; } - } - - public class MongoDbProcessManagerFinderTests - { - readonly Guid _correlationId = Guid.NewGuid(); - private readonly MongoCollection _collection; - private readonly string _connectionString; - private readonly string _dbName; - private readonly IProcessManagerPropertyMapper _mapper; - - - public MongoDbProcessManagerFinderTests() - { - _connectionString = "mongodb://localhost/"; - _dbName = "ProcessManagerRepository"; - var mongoClient = new MongoClient(_connectionString); - MongoServer server = mongoClient.GetServer(); - MongoDatabase mongoDatabase = server.GetDatabase(_dbName); - _collection = mongoDatabase.GetCollection("TestData"); - _collection.Drop(); - - _mapper = new ProcessManagerPropertyMapper(); - _mapper.ConfigureMapping(m => m.CorrelationId, pm => pm.CorrelationId); - } - - [Fact] - public void ShouldInsertData() - { - // Arrange - IProcessManagerData data = new TestData { CorrelationId = _correlationId, Name = "TestData" }; - IProcessManagerFinder processManagerFinder = new MongoDbProcessManagerFinder(_connectionString, _dbName); - - // Act - processManagerFinder.InsertData(data); - - // Assert - var insertedData = _collection.FindOneAs>(Query>.Where(i => i.Data.CorrelationId == _correlationId)); - Assert.Equal("TestData", insertedData.Data.Name); - } - - [Fact] - public void ShouldFindData() - { - // Arrange - IProcessManagerData data = new TestData { CorrelationId = _correlationId, Name = "TestData" }; - _collection.Save(new MongoDbData { Data = data }); - IProcessManagerFinder processManagerFinder = new MongoDbProcessManagerFinder(_connectionString, _dbName); - - // Act - var result = processManagerFinder.FindData(_mapper, new Message(_correlationId)); - - // Assert - Assert.Equal("TestData", result.Data.Name); - } - - [Fact] - public void ShouldReturnNullWhenDataNotFound() - { - // Arrange - IProcessManagerFinder processManagerFinder = new MongoDbProcessManagerFinder(_connectionString, _dbName); - - // Act - var result = processManagerFinder.FindData(_mapper, new Message(_correlationId)); - - // Assert - Assert.Null(result); - } - - [Fact] - public void ShouldUpdateData() - { - // Arrange - IProcessManagerData data = new TestData { CorrelationId = _correlationId, Name = "TestData" }; - var versionData = new MongoDbData { Data = data }; - _collection.Save(versionData); - ((TestData) data).Name = "TestDataUpdated"; - IProcessManagerFinder processManagerFinder = new MongoDbProcessManagerFinder(_connectionString, _dbName); - - // Act - processManagerFinder.UpdateData(versionData); - - // Assert - var updatedData = _collection.FindOneAs>(Query>.Where(i => i.Data.CorrelationId == _correlationId)); - Assert.Equal("TestDataUpdated", updatedData.Data.Name); - Assert.Equal(1, updatedData.Version); - } - - [Fact] - public void ShouldThrowWhenUpdatingTwoInstancesOfSameDataAtTheSameTime() - { - // Arrange - IProcessManagerData data1 = new TestData { CorrelationId = _correlationId, Name = "TestData1" }; - _collection.Save(new MongoDbData { Data = data1 }); - IProcessManagerFinder processManagerFinder = new MongoDbProcessManagerFinder(_connectionString, _dbName); - - var foundData1 = processManagerFinder.FindData(_mapper, new Message(_correlationId)); - var foundData2 = processManagerFinder.FindData(_mapper, new Message(_correlationId)); - - processManagerFinder.UpdateData(foundData1); // first update should be fine - - // Act / Assert - Assert.Throws(() => processManagerFinder.UpdateData(foundData2)); // second update should fail - } - - [Fact] - public void ShouldDeleteData() - { - // Arrange - IProcessManagerData data = new TestData { CorrelationId = _correlationId, Name = "TestData" }; - _collection.Save(new MongoDbData { Data = data }); - IProcessManagerFinder processManagerFinder = new MongoDbProcessManagerFinder(_connectionString, _dbName); - - // Act - processManagerFinder.DeleteData(new MongoDbData { Data = data }); - - // Assert - var deletedData = _collection.FindOneAs(Query.Where(i => i.CorrelationId == _correlationId)); - Assert.Null(deletedData); - } - } -} diff --git a/src/ServiceConnect.IntegrationTests/MyLocalDb.mdf b/src/ServiceConnect.IntegrationTests/MyLocalDb.mdf deleted file mode 100644 index d46d5fc54..000000000 Binary files a/src/ServiceConnect.IntegrationTests/MyLocalDb.mdf and /dev/null differ diff --git a/src/ServiceConnect.IntegrationTests/MyLocalDb_log.ldf b/src/ServiceConnect.IntegrationTests/MyLocalDb_log.ldf deleted file mode 100644 index 159319475..000000000 Binary files a/src/ServiceConnect.IntegrationTests/MyLocalDb_log.ldf and /dev/null differ diff --git a/src/ServiceConnect.IntegrationTests/Properties/AssemblyInfo.cs b/src/ServiceConnect.IntegrationTests/Properties/AssemblyInfo.cs deleted file mode 100644 index ae029b122..000000000 --- a/src/ServiceConnect.IntegrationTests/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,19 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("ServiceConnect.IntegrationTests")] -[assembly: AssemblyTrademark("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("a40766bc-b143-4223-8a1c-cc4edce49edd")] diff --git a/src/ServiceConnect.IntegrationTests/ServiceConnect.IntegrationTests.csproj b/src/ServiceConnect.IntegrationTests/ServiceConnect.IntegrationTests.csproj deleted file mode 100644 index 927752ba5..000000000 --- a/src/ServiceConnect.IntegrationTests/ServiceConnect.IntegrationTests.csproj +++ /dev/null @@ -1,46 +0,0 @@ - - - - 4.0.0-pre - net6.0 - ServiceConnect.IntegrationTests - ServiceConnect.IntegrationTests - true - 1.6.1 - 1.0.4 - false - false - false - - - - x64 - - - - - PreserveNewest - - - - - - - - - - - - - - - - - all - runtime; build; native; contentfiles; analyzers; buildtransitive - - - - - - diff --git a/src/ServiceConnect.IntegrationTests/SqlServerProcessManagerFinderTest.cs b/src/ServiceConnect.IntegrationTests/SqlServerProcessManagerFinderTest.cs deleted file mode 100644 index b12c09952..000000000 --- a/src/ServiceConnect.IntegrationTests/SqlServerProcessManagerFinderTest.cs +++ /dev/null @@ -1,314 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; -using System.Data; -using System.Data.SqlClient; -using System.IO; -using System.Xml; -using System.Xml.Serialization; -using Moq; -using ServiceConnect.Core; -using ServiceConnect.Interfaces; -using ServiceConnect.Persistance.SqlServer; -using Xunit; - -namespace ServiceConnect.IntegrationTests -{ - #region Helper classes - - public class TestDbRow - { - public string Id { get; set; } - public string DataXml { get; set; } - public int Version { get; set; } - } - - public class TestSqlServerData : IProcessManagerData - { - public Guid CorrelationId { get; set; } - public string Name { get; set; } - } - - #endregion - - public class SqlServerProcessManagerFinderTest - { - private readonly string _connectionString; - private readonly IProcessManagerPropertyMapper _mapper; - - public SqlServerProcessManagerFinderTest() - { - //var appBasePath = PlatformServices.Default.Application.ApplicationBasePath; - _connectionString = @"Data Source=(LocalDB)\v11.0;AttachDbFilename=|DataDirectory|\MyLocalDb.mdf;Integrated Security=True"; - // _connectionString = string.Format(@"Data Source=(LocalDB)\v11.0;AttachDbFilename={0};Integrated Security=True", Path.Combine(appBasePath, "MyLocalDb.mdf")); - - // DROP TABLE before each test - using (var connection = new SqlConnection(_connectionString)) - { - connection.Open(); - using (var command = new SqlCommand()) - { - command.Connection = connection; - command.CommandText = "IF EXISTS ( SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = 'TestSqlServerData') " + - "DROP TABLE TestSqlServerData;"; - command.ExecuteNonQuery(); - } - } - - _mapper = new ProcessManagerPropertyMapper(); - _mapper.ConfigureMapping(m => m.CorrelationId, pm => pm.CorrelationId); - } - - [Fact] - public void ShouldInsertData() - { - // Arrange - var correlationId = Guid.NewGuid(); - IProcessManagerData data = new TestSqlServerData { CorrelationId = correlationId, Name = "TestData" }; - IProcessManagerFinder processManagerFinder = new SqlServerProcessManagerFinder(_connectionString, string.Empty); - - // Act - processManagerFinder.InsertData(data); - - // Assert - var results = GetTestDbData(correlationId); - Assert.Equal(1, results.Count); - Assert.Equal(correlationId.ToString(), results[0].Id); - Assert.True(results[0].DataXml.Contains("TestData")); - } - - [Fact] - public void ShouldUpdateWhenInsertingDataWithExistingId() - { - // Arrange - var correlationId = Guid.NewGuid(); - SetupTestDbData(new List { new TestDbRow { Id = correlationId.ToString(), DataXml = "FakeJsonData" } }); - - IProcessManagerData data = new TestSqlServerData { CorrelationId = correlationId, Name = "TestData" }; - IProcessManagerFinder processManagerFinder = new SqlServerProcessManagerFinder(_connectionString, string.Empty); - - // Act - processManagerFinder.InsertData(data); - - // Assert - var results = GetTestDbData(correlationId); - Assert.Equal(1, results.Count); - Assert.Equal(correlationId.ToString(), results[0].Id); - Assert.NotEqual("FakeJsonData", results[0].DataXml); - Assert.True(results[0].DataXml.Contains("TestData")); - } - - [Fact] - public void ShouldFindData() - { - // Arrange - var correlationId = Guid.NewGuid(); - - var data = new TestSqlServerData {CorrelationId = correlationId, Name = "TestData"}; - var xmlSerializer = new XmlSerializer(data.GetType()); - var sww = new StringWriter(); - XmlWriter writer = XmlWriter.Create(sww); - xmlSerializer.Serialize(writer, data); - var dataXml = sww.ToString(); - - SetupTestDbData(new List { new TestDbRow { Id = correlationId.ToString(), DataXml = dataXml, Version = 1} }); - IProcessManagerFinder processManagerFinder = new SqlServerProcessManagerFinder(_connectionString, string.Empty); - - // Act - var result = processManagerFinder.FindData(_mapper, new Message(correlationId)); - - // Assert - Assert.Equal("TestData", result.Data.Name); - - // Teardown - complete transaction - processManagerFinder.UpdateData(result); - } - - [Fact] - public void ShouldReturnNullWhenDataTableNotFound() - { - // Arrange - var correlationId = Guid.NewGuid(); - IProcessManagerFinder processManagerFinder = new SqlServerProcessManagerFinder(_connectionString, string.Empty); - - // Act - //var result = processManagerFinder.FindData(correlationId); - var result = processManagerFinder.FindData(_mapper, new Message(correlationId)); - - // Assert - Assert.Null(result); - } - - [Fact] - public void ShouldReturnNullWhenDataNotFound() - { - // Arrange - var correlationId = Guid.NewGuid(); - SetupTestDbData(null); - IProcessManagerFinder processManagerFinder = new SqlServerProcessManagerFinder(_connectionString, string.Empty); - - // Act - var result = processManagerFinder.FindData(_mapper, new Message(correlationId)); - - // Assert - Assert.Null(result); - } - - [Fact] - public void ShouldUpdateData() - { - // Arrange - var correlationId = Guid.NewGuid(); - var testDataJson = "{\"CorrelationId\":\"e845f0a0-4af0-4d1e-a324-790d49d540ae\",\"Name\":\"TestDataOriginal\"}"; - - IProcessManagerData data = new TestSqlServerData { CorrelationId = correlationId, Name = "TestDataOriginal" }; - var xmlSerializer = new XmlSerializer(data.GetType()); - var sww = new StringWriter(); - XmlWriter writer = XmlWriter.Create(sww); - xmlSerializer.Serialize(writer, data); - var dataXml = sww.ToString(); - SetupTestDbData(new List { new TestDbRow { Id = correlationId.ToString(), DataXml = dataXml } }); - - IProcessManagerData updatedData = new TestSqlServerData { CorrelationId = correlationId, Name = "TestDataUpdated" }; - var sqlServerData = new SqlServerData { Data = updatedData, Id = correlationId }; - - IProcessManagerFinder processManagerFinder = new SqlServerProcessManagerFinder(_connectionString, string.Empty); - - // Act - //processManagerFinder.FindData(correlationId); - processManagerFinder.FindData(_mapper, new Message(correlationId)); - processManagerFinder.UpdateData(sqlServerData); - - // Assert - var results = GetTestDbData(correlationId); - Assert.Equal(1, results.Count); - Assert.Equal(correlationId.ToString(), results[0].Id); - Assert.False(results[0].DataXml.Contains("TestDataOriginal")); - Assert.True(results[0].DataXml.Contains("TestDataUpdated")); - } - - [Fact] - public void ShouldThrowWhenUpdatingTwoInstancesOfSameDataAtTheSameTime() - { - // Arrange - var correlationId = Guid.NewGuid(); - IProcessManagerData data = new TestSqlServerData { CorrelationId = correlationId, Name = "TestDataUpdated" }; - var xmlSerializer = new XmlSerializer(data.GetType()); - var sww = new StringWriter(); - XmlWriter writer = XmlWriter.Create(sww); - xmlSerializer.Serialize(writer, data); - var dataXml = sww.ToString(); - - SetupTestDbData(new List { new TestDbRow { Id = correlationId.ToString(), DataXml = dataXml, Version = 1 } }); - - IProcessManagerFinder processManagerFinder = new SqlServerProcessManagerFinder(_connectionString, string.Empty, 1); - - var foundData1 = processManagerFinder.FindData(_mapper, new Message(correlationId)); - var foundData2 = processManagerFinder.FindData(_mapper, new Message(correlationId)); - - processManagerFinder.UpdateData(foundData1); // first update should be fine - - // Act / Assert - Assert.Throws(() => processManagerFinder.UpdateData(foundData2)); // second update should fail - } - - [Fact] - public void ShouldDeleteData() - { - // Arrange - var correlationId = Guid.NewGuid(); - - IProcessManagerData data = new TestSqlServerData { CorrelationId = correlationId, Name = "TestDataUpdated" }; - var xmlSerializer = new XmlSerializer(data.GetType()); - var sww = new StringWriter(); - XmlWriter writer = XmlWriter.Create(sww); - xmlSerializer.Serialize(writer, data); - var dataXml = sww.ToString(); - - SetupTestDbData(new List { new TestDbRow { Id = correlationId.ToString(), DataXml = dataXml, Version = 1 } }); - - IProcessManagerFinder processManagerFinder = new SqlServerProcessManagerFinder(_connectionString, string.Empty); - - var sqlServerDataToBeDeleted = new SqlServerData { Data = data, Id = correlationId, Version = 1}; - - // Act - processManagerFinder.FindData(_mapper, new Message(correlationId)); - processManagerFinder.DeleteData(sqlServerDataToBeDeleted); - - // Assert - var results = GetTestDbData(correlationId); - Assert.Equal(0, results.Count); - } - - private void SetupTestDbData(IEnumerable testData) - { - using (var connection = new SqlConnection(_connectionString)) - { - connection.Open(); - - // Create table if doesn't exist - using (var command = new SqlCommand()) - { - command.Connection = connection; - command.CommandText = - "IF NOT EXISTS( SELECT 1 FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = 'TestSqlServerData') " + - "CREATE TABLE TestSqlServerData(Id uniqueidentifier NOT NULL, DataXml xml NULL, Version int NOT NULL);"; - command.ExecuteNonQuery(); - } - - if (null != testData) - { - foreach (var testDbRow in testData) - { - using (var command = new SqlCommand()) - { - command.Connection = connection; - command.CommandText = @"INSERT TestSqlServerData (Id, DataXml, Version) VALUES (@Id,@DataXml,@Version)"; - command.Parameters.Add("@Id", SqlDbType.UniqueIdentifier).Value = new Guid(testDbRow.Id); - command.Parameters.Add("@DataXml", SqlDbType.Xml).Value = testDbRow.DataXml; - command.Parameters.Add("@Version", SqlDbType.Int).Value = testDbRow.Version; - command.ExecuteNonQuery(); - } - } - } - } - } - - private IList GetTestDbData(Guid correlationId) - { - IList results = new List(); - - using (var connection = new SqlConnection(_connectionString)) - { - connection.Open(); - using (var command = new SqlCommand()) - { - command.Connection = connection; - command.CommandText = string.Format("SELECT * FROM TestSqlServerData WHERE Id = '{0}'", correlationId); - var reader = command.ExecuteReader(); - while (reader.Read()) - { - results.Add(new TestDbRow { Id = reader["Id"].ToString(), DataXml = reader["DataXml"].ToString() }); - } - } - } - - return results; - } - } -} diff --git a/src/ServiceConnect.IntegrationTestsSsl/MongoDbSslProcessManagerFinderTests.cs b/src/ServiceConnect.IntegrationTestsSsl/MongoDbSslProcessManagerFinderTests.cs deleted file mode 100644 index 315d17dc7..000000000 --- a/src/ServiceConnect.IntegrationTestsSsl/MongoDbSslProcessManagerFinderTests.cs +++ /dev/null @@ -1,186 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using MongoDB.Driver; -using ServiceConnect.Core; -using ServiceConnect.Interfaces; -using ServiceConnect.Persistance.MongoDbSsl; -using Xunit; - -namespace ServiceConnect.IntegrationTestsSsl -{ - public class TestDataSsl : IProcessManagerData - { - public Guid CorrelationId { get; set; } - public string Name { get; set; } - } - - public class MongoDbSslProcessManagerFinderTests - { - readonly Guid _correlationId = Guid.NewGuid(); - private readonly string _connectionString; - private readonly string _dbName; - private readonly IProcessManagerPropertyMapper _mapper; - private readonly string _testCollectionName = "TestDataSsl"; - - public MongoDbSslProcessManagerFinderTests() - { - _dbName = "ScTestProcessManagerRepository"; - _connectionString = string.Format("nodes={0},username={1},password={2},cert={3}", - "xxx", - "xxx", - "xxx", - "xxx"); - - _mapper = new ProcessManagerPropertyMapper(); - _mapper.ConfigureMapping(m => m.CorrelationId, pm => pm.CorrelationId); - - var testRepo = new MongoDbSslRepository(_connectionString, _dbName); - testRepo.MongoDatabase.DropCollection("TestDataSsl"); - } - - [Fact] - public void ShouldInsertData() - { - // Arrange - IProcessManagerData data = new TestDataSsl { CorrelationId = _correlationId, Name = "TestData" }; - IProcessManagerFinder processManagerFinder = new MongoDbSslProcessManagerFinder(_connectionString, _dbName); - - // Act - processManagerFinder.InsertData(data); - - // Assert - var testRepo = new MongoDbSslRepository(_connectionString, _dbName); - var collection = testRepo.MongoDatabase.GetCollection>(_testCollectionName); - var filter = Builders>.Filter.Eq(_ => _.Data.CorrelationId, _correlationId); - var insertedData = collection.Find(filter).First(); - Assert.Equal("TestData", insertedData.Data.Name); - } - - [Fact] - public void ShouldUpsertData() - { - // Arrange - IProcessManagerData data1 = new TestDataSsl { CorrelationId = _correlationId, Name = "TestData1" }; - IProcessManagerData data2 = new TestDataSsl { CorrelationId = _correlationId, Name = "TestData2" }; - IProcessManagerFinder processManagerFinder = new MongoDbSslProcessManagerFinder(_connectionString, _dbName); - - // Act - processManagerFinder.InsertData(data1); - processManagerFinder.InsertData(data2); - - // Assert - var testRepo = new MongoDbSslRepository(_connectionString, _dbName); - var collection = testRepo.MongoDatabase.GetCollection>(_testCollectionName); - var filter = Builders>.Filter.Eq(_ => _.Data.CorrelationId, _correlationId); - MongoDbSslData insertedData = collection.Find(filter).First(); - Assert.Equal("TestData2", insertedData.Data.Name); - } - - [Fact] - public void ShouldFindData() - { - // Arrange - var testRepo = new MongoDbSslRepository(_connectionString, _dbName); - IProcessManagerData data = new TestDataSsl { CorrelationId = _correlationId, Name = "TestData" }; - IMongoCollection> collection = testRepo.MongoDatabase.GetCollection>(_testCollectionName); - collection.InsertOne(new MongoDbSslData { Data = data }); - IProcessManagerFinder processManagerFinder = new MongoDbSslProcessManagerFinder(_connectionString, _dbName); - - // Act - var result = processManagerFinder.FindData(_mapper, new Message(_correlationId)); - - // Assert - Assert.Equal("TestData", result.Data.Name); - } - - [Fact] - public void ShouldReturnNullWhenDataNotFound() - { - // Arrange - IProcessManagerFinder processManagerFinder = new MongoDbSslProcessManagerFinder(_connectionString, _dbName); - - // Act - var result = processManagerFinder.FindData(_mapper, new Message(_correlationId)); - - // Assert - Assert.Null(result); - } - - [Fact] - public void ShouldUpdateData() - { - // Arrange - var testRepo = new MongoDbSslRepository(_connectionString, _dbName); - IProcessManagerData data = new TestDataSsl { CorrelationId = _correlationId, Name = "TestData" }; - var collection = testRepo.MongoDatabase.GetCollection>(_testCollectionName); - var versionData = new MongoDbSslData { Data = data }; - collection.InsertOne(versionData); - ((TestDataSsl)data).Name = "TestDataUpdated"; - IProcessManagerFinder processManagerFinder = new MongoDbSslProcessManagerFinder(_connectionString, _dbName); - - // Act - processManagerFinder.UpdateData(versionData); - - // Assert - var collection2 = testRepo.MongoDatabase.GetCollection>(_testCollectionName); - var filter = Builders>.Filter.Eq(_ => _.Data.CorrelationId, _correlationId); - var updatedData = collection2.Find(filter).First(); - Assert.Equal("TestDataUpdated", updatedData.Data.Name); - Assert.Equal(1, updatedData.Version); - } - - [Fact] - public void ShouldThrowWhenUpdatingTwoInstancesOfSameDataAtTheSameTime() - { - // Arrange - var testRepo = new MongoDbSslRepository(_connectionString, _dbName); - IProcessManagerData data1 = new TestDataSsl { CorrelationId = _correlationId, Name = "TestData1" }; - var collection = testRepo.MongoDatabase.GetCollection>(_testCollectionName); - collection.InsertOne(new MongoDbSslData { Data = data1 }); - IProcessManagerFinder processManagerFinder = new MongoDbSslProcessManagerFinder(_connectionString, _dbName); - - var foundData1 = processManagerFinder.FindData(_mapper, new Message(_correlationId)); - var foundData2 = processManagerFinder.FindData(_mapper, new Message(_correlationId)); - - processManagerFinder.UpdateData(foundData1); // first update should be fine - - // Act / Assert - Assert.Throws(() => processManagerFinder.UpdateData(foundData2)); // second update should fail - } - - [Fact] - public void ShouldDeleteData() - { - // Arrange - var testRepo = new MongoDbSslRepository(_connectionString, _dbName); - var collection = testRepo.MongoDatabase.GetCollection>(_testCollectionName); - IProcessManagerData data = new TestDataSsl { CorrelationId = _correlationId, Name = "TestData" }; - collection.InsertOne(new MongoDbSslData { Data = data }); - IProcessManagerFinder processManagerFinder = new MongoDbSslProcessManagerFinder(_connectionString, _dbName); - - // Act - processManagerFinder.DeleteData(new MongoDbSslData { Data = data }); - - // Assert - var collection2 = testRepo.MongoDatabase.GetCollection>(_testCollectionName); - var filter = Builders>.Filter.Eq(_ => _.Data.CorrelationId, _correlationId); - var deletedData = collection2.Find(filter).FirstOrDefault(); - Assert.Null(deletedData); - } - } -} diff --git a/src/ServiceConnect.IntegrationTestsSsl/MongoDbSslRepository.cs b/src/ServiceConnect.IntegrationTestsSsl/MongoDbSslRepository.cs deleted file mode 100644 index 92f679842..000000000 --- a/src/ServiceConnect.IntegrationTestsSsl/MongoDbSslRepository.cs +++ /dev/null @@ -1,127 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using System.Security.Cryptography.X509Certificates; -using MongoDB.Driver; - -namespace ServiceConnect.IntegrationTestsSsl -{ - public class MongoDbSslRepository - { - public IMongoDatabase MongoDatabase { get; } - - public MongoDbSslRepository(string connectionString, string databaseName) - { - var connectionParts = connectionString.Split(','); - string nodes = string.Empty; - string username = string.Empty; - string password = string.Empty; - string certPath = string.Empty; - string userdb = string.Empty; - string cert = string.Empty; - string certPassword = string.Empty; - - foreach (string connectionPart in connectionParts) - { - var assignmentIndex = connectionPart.IndexOf('='); - var nameValue = connectionPart.Substring(0, assignmentIndex); - - switch (nameValue.ToLower()) - { - case "nodes": - nodes = connectionPart.Substring(assignmentIndex + 1); - break; - case "userdb": - userdb = connectionPart.Substring(assignmentIndex + 1); - break; - case "username": - username = connectionPart.Substring(assignmentIndex + 1); - break; - case "password": - password = connectionPart.Substring(assignmentIndex + 1); - break; - case "certpath": - certPath = connectionPart.Substring(assignmentIndex + 1); - break; - case "cert": - cert = connectionPart.Substring(assignmentIndex + 1); - break; - case "certpassword": - certPassword = connectionPart.Substring(assignmentIndex + 1); - break; - } - } - - var mongoNodes = nodes.Split(';'); - - List certs = null; - if (!string.IsNullOrEmpty(certPath)) - { - if (string.IsNullOrEmpty(certPassword)) - { - certs = new List - { - new X509Certificate2(certPath) - }; - } - else - { - certs = new List - { - new X509Certificate2(certPath, certPassword) - }; - } - - } - - if (!string.IsNullOrEmpty(cert)) - { - if (string.IsNullOrEmpty(certPassword)) - { - certs = new List - { - new X509Certificate2(Convert.FromBase64String(cert)) - }; - } - else - { - certs = new List - { - new X509Certificate2(Convert.FromBase64String(cert), certPassword) - }; - } - } - - MongoCredential credential = null; - if (!string.IsNullOrEmpty(username)) - { - string db = "admin"; - - if (!string.IsNullOrEmpty(userdb)) - { - db = userdb; - } - - credential = MongoCredential.CreateCredential(db, username, password); - } - - var settings = new MongoClientSettings - { - UseTls = true, - Credential = credential, - ConnectionMode = ConnectionMode.Automatic, - Servers = mongoNodes.Select(x => new MongoServerAddress(x)), - SslSettings = new SslSettings - { - ClientCertificates = certs, - ClientCertificateSelectionCallback = (sender, host, certificates, certificate, issuers) => certificates[0], - CheckCertificateRevocation = false - } - }; - - var client = new MongoClient(settings); - MongoDatabase = client.GetDatabase(databaseName); - - } - } -} diff --git a/src/ServiceConnect.IntegrationTestsSsl/ServiceConnect.IntegrationTestsSsl.csproj b/src/ServiceConnect.IntegrationTestsSsl/ServiceConnect.IntegrationTestsSsl.csproj deleted file mode 100644 index c458f37b5..000000000 --- a/src/ServiceConnect.IntegrationTestsSsl/ServiceConnect.IntegrationTestsSsl.csproj +++ /dev/null @@ -1,24 +0,0 @@ - - - - Exe - net6.0 - - - - - - - - all - runtime; build; native; contentfiles; analyzers; buildtransitive - - - - - - - - - - diff --git a/src/ServiceConnect.Interfaces/Aggregation/Aggregator.cs b/src/ServiceConnect.Interfaces/Aggregation/Aggregator.cs new file mode 100644 index 000000000..98e6533d0 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Aggregation/Aggregator.cs @@ -0,0 +1,67 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Defines an aggregator that batches related messages before handling them. +/// +/// The message type accepted by the aggregator. +/// +/// Every concrete subclass must declare its flush policy by overriding both +/// and . The framework requires +/// both a size-based and a time-based flush path to guarantee buffered messages +/// always have a route to dispatch; the registry rejects subclasses whose +/// is zero/negative or whose is +/// zero/ with a startup +/// . +/// +public abstract class Aggregator where T : Message +{ + /// + /// Gets the maximum amount of time to wait before dispatching the current batch. + /// + /// + /// A positive . and + /// are rejected by the + /// registry at startup — every aggregator must have a finite time-based flush path. + /// + public abstract TimeSpan Timeout(); + + /// + /// Gets the maximum number of messages to buffer before dispatching the batch. + /// + /// A positive integer. Zero and negative values are rejected by the registry at startup. + public abstract int BatchSize(); + + /// + /// Processes a completed batch of aggregated messages. + /// + /// The messages collected for the batch. Read-only — handlers must not + /// mutate the snapshot they were handed; the persistor owns the underlying buffer's lifetime. + /// Token to observe for cancellation. + /// A task that completes when the batch has been processed. + /// + /// + /// Idempotency invariant. MUST be safe to invoke more than + /// once with the same logical batch. ServiceConnect delivers at-least-once: after the handler + /// returns, the framework calls RemoveSnapshotAsync on the aggregator persistor to + /// drop the dispatched records. A transient persistor failure between the handler's return and + /// a successful remove leaves the records under their lease; when the lease expires the same + /// batch is re-claimed and re-dispatched. Lease expiry under a slow handler produces the same + /// replay. Side effects with external observability — outbound bus sends, HTTP calls, DB writes + /// outside the aggregator's snapshot, file I/O — must therefore be guarded by an idempotency + /// check (e.g., a deterministic key on the outbound message, an upsert with a deterministic + /// key, a state flag persisted alongside the aggregator's own records). A handler that + /// unconditionally SendAsyncs an outbound command on every batch will double-send on + /// replay; that is the framework's contract, not a bug. + /// + /// + /// Cancellation behaviour: when fires, the framework + /// short-circuits the persistor remove and releases the snapshot lease — whether the + /// originates inside the handler or during the + /// post-handler RemoveSnapshotAsync call. The same batch is then redeliverable on + /// the next eligible flush. Note that cancellation during RemoveSnapshotAsync means + /// the handler has already executed and its external side effects have committed; + /// idempotency rules above apply on the replay. + /// + /// + public abstract Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default); +} diff --git a/src/ServiceConnect.Interfaces/Aggregation/AggregatorSnapshot.cs b/src/ServiceConnect.Interfaces/Aggregation/AggregatorSnapshot.cs new file mode 100644 index 000000000..ab0ffd61d --- /dev/null +++ b/src/ServiceConnect.Interfaces/Aggregation/AggregatorSnapshot.cs @@ -0,0 +1,18 @@ +namespace ServiceConnect.Interfaces; + +/// +/// A point-in-time capture of aggregator messages returned by +/// . +/// Carries the deserialised messages, the ids of the underlying storage records, +/// and the count of records that could not be resolved (e.g. renamed CLR types). +/// +public sealed record AggregatorSnapshot( + IReadOnlyList ResolvedMessages, + IReadOnlyList ResolvedIds, + int UnresolvedCount) : IAggregatorSnapshot +{ + /// + /// Gets an empty snapshot with no resolved or unresolved records. + /// + public static AggregatorSnapshot Empty { get; } = new([], [], 0); +} diff --git a/src/ServiceConnect.Interfaces/Aggregation/IAggregatorPersistor.cs b/src/ServiceConnect.Interfaces/Aggregation/IAggregatorPersistor.cs new file mode 100644 index 000000000..dd2ce9c0f --- /dev/null +++ b/src/ServiceConnect.Interfaces/Aggregation/IAggregatorPersistor.cs @@ -0,0 +1,131 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Persists the buffered state used by aggregators between message deliveries. +/// +public interface IAggregatorPersistor +{ + /// + /// Stores an aggregated message for the named aggregator instance, idempotent on + /// within the aggregator's active row set. + /// + /// The message payload to persist; must be an implementation of . + /// The logical aggregator name. + /// + /// A stable per-message identifier (typically the broker-side MessageId) used to + /// reject re-inserts of the same delivery. A retry-queue redelivery between Insert and + /// the dispatcher's broker ack will re-enter InsertDataAsync with the same key + /// while the prior insert's row is still buffered; the persistor must skip the second + /// write so the aggregator's Execute sees each delivery exactly once. Once the + /// row has been removed (snapshot dispatched), the key is no longer tracked. + /// + /// A token that cancels the operation. + Task InsertDataAsync(IHasCorrelationId data, string name, string idempotencyKey, CancellationToken cancellationToken = default); + + /// + /// Loads all persisted messages for the named aggregator. + /// + /// The logical aggregator name. + /// A token that cancels the operation. + /// The persisted messages. + Task> GetDataAsync(string name, CancellationToken cancellationToken = default); + + /// + /// Loads a snapshot that separates resolved and unresolved persisted records. + /// + /// The logical aggregator name. + /// A token that cancels the operation. + /// A snapshot of the stored records. + Task GetSnapshotAsync(string name, CancellationToken cancellationToken = default); + + /// + /// Removes a single persisted message from the named aggregator. + /// + /// The logical aggregator name. + /// The correlation id of the stored message to remove. + /// A token that cancels the operation. + /// + /// Thrown when the (name, correlationId) row cannot be located — either because another writer + /// concurrently removed it or because the caller supplied a mismatched key. Callers should treat + /// this as distinct from a structural persistence failure. All first-party persistors raise this + /// on no-op delete; third-party implementations should follow the same contract. + /// + Task RemoveDataAsync(string name, Guid correlationId, CancellationToken cancellationToken = default); + + /// + /// Removes all persisted messages for the named aggregator. + /// + /// The logical aggregator name. + /// A token that cancels the operation. + Task RemoveAllAsync(string name, CancellationToken cancellationToken = default); + + /// + /// Removes the records represented by a previously loaded snapshot. + /// + /// The logical aggregator name. + /// The snapshot describing which records should be removed. + /// A token that cancels the operation. + Task RemoveSnapshotAsync(string name, IAggregatorSnapshot snapshot, CancellationToken cancellationToken = default); + + /// + /// Releases the lease held by the supplied snapshot so the rows become immediately + /// re-claimable by a subsequent . Called by the + /// aggregator processor on handler failure — without an explicit release the rows + /// would sit leased until the persistor's lease TTL expires (5 minutes on the + /// MongoDB persistor by default), during which the next redelivery's snapshot + /// is empty and the handler is never re-invoked. + /// + /// The logical aggregator name. + /// The snapshot whose lease should be released. + /// A token that cancels the operation. + /// + /// Default-interface-method shim: persistors that don't lease (InMemory, third-party + /// implementations that predate this method) return immediately — the no-op semantics + /// match a persistor where rows are always re-claimable by id alone. Persistors that + /// stamp a LockedBy/LockExpiresAt pair on rows during snapshot acquisition + /// (the MongoDB persistor) MUST override to clear those columns for the snapshot's + /// session id; otherwise the handler-failure → lease-strand → silent-empty-redelivery + /// failure mode at the processor level is unaddressed. + /// + Task ReleaseSnapshotAsync(string name, IAggregatorSnapshot snapshot, CancellationToken cancellationToken = default) => + Task.CompletedTask; + + /// + /// Counts the number of persisted messages for the named aggregator. + /// + /// The logical aggregator name. + /// A token that cancels the operation. + /// The number of stored records. + Task CountAsync(string name, CancellationToken cancellationToken = default); + + /// + /// Counts persisted messages whose CLR type is currently resolvable. Unlike + /// (which returns total rows including those whose CLR type + /// could not be resolved e.g. after a type rename), this method drives the + /// batch-size flush gate so unresolved-only batches do not trigger flushes that + /// produce no work. + /// + /// + /// + /// The default implementation delegates to . This is correct + /// for any persistor whose stored records are always type-resolvable (e.g. an in-memory + /// store that holds deserialised instances) and for + /// any deployment where every registered type still has a live CLR mapping. It is a + /// safe fall-back, NOT optimal: a persistor with a meaningful resolved/unresolved split + /// (e.g. Mongo across a type-rename rollout) should override with a cheap typed + /// predicate to avoid flushing on rows that would only count toward the gate. + /// + /// + /// Implementers MUST NOT override with a method that mutates state. This method runs + /// on every InsertDataAsync as the batch-size flush gate; an implementation that + /// claims a lease (e.g. by delegating to on a + /// snapshot-claims-lease persistor) would rotate the lease on every insert and break + /// the per-flush lease invariant. + /// + /// + /// The logical aggregator name. + /// A token that cancels the operation. + /// The number of stored records whose CLR type is currently resolvable. + Task CountResolvedAsync(string name, CancellationToken cancellationToken = default) => + CountAsync(name, cancellationToken); +} diff --git a/src/ServiceConnect.Interfaces/Aggregation/IAggregatorSnapshot.cs b/src/ServiceConnect.Interfaces/Aggregation/IAggregatorSnapshot.cs new file mode 100644 index 000000000..5c6d8fa89 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Aggregation/IAggregatorSnapshot.cs @@ -0,0 +1,22 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Describes a persisted aggregator snapshot, including any records that could not be resolved. +/// +public interface IAggregatorSnapshot +{ + /// + /// Gets the stored messages that were successfully resolved back into CLR objects. + /// + IReadOnlyList ResolvedMessages { get; } + + /// + /// Gets the storage ids for the resolved messages. + /// + IReadOnlyList ResolvedIds { get; } + + /// + /// Gets the number of stored records that could not be resolved. + /// + int UnresolvedCount { get; } +} diff --git a/src/ServiceConnect.Interfaces/Aggregation/IHasCorrelationId.cs b/src/ServiceConnect.Interfaces/Aggregation/IHasCorrelationId.cs new file mode 100644 index 000000000..6d44e5893 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Aggregation/IHasCorrelationId.cs @@ -0,0 +1,15 @@ +namespace ServiceConnect.Interfaces; + +/// +/// A correlation-id carrier. Implemented by and by any +/// aggregator data type that stores a per-message correlation key. +/// +/// +/// Aggregator persistors require this interface on stored data so they can locate +/// entries by correlation id without per-type reflection. +/// +public interface IHasCorrelationId +{ + /// The correlation identifier carried by the implementing instance. + Guid CorrelationId { get; } +} diff --git a/src/ServiceConnect.Interfaces/Aggregator.cs b/src/ServiceConnect.Interfaces/Aggregator.cs deleted file mode 100644 index 558583c72..000000000 --- a/src/ServiceConnect.Interfaces/Aggregator.cs +++ /dev/null @@ -1,50 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; - -namespace ServiceConnect.Interfaces -{ - /// - /// Define aggregated message handlers - /// - /// - public abstract class Aggregator where T : Message - { - /// - /// Timeout for aggregating messages. - /// When the timeout is reached, the current batch of messages is dispatched - /// to the handler (regardless of the batch size). - /// - /// - public virtual TimeSpan Timeout() - { - return default(TimeSpan); - } - - /// - /// Max batch size of aggregated messages - /// - /// - public virtual int BatchSize() - { - return 0; - } - - public abstract void Execute(IList messages); - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Interfaces/Bus/ConsumeEventArgs.cs b/src/ServiceConnect.Interfaces/Bus/ConsumeEventArgs.cs new file mode 100644 index 000000000..5385fb0c0 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Bus/ConsumeEventArgs.cs @@ -0,0 +1,33 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Carries the raw message data received by the telemetry consume pipeline. +/// +public sealed class ConsumeEventArgs +{ + /// + /// Gets the raw message body bytes. Populated lazily — the consume middleware + /// only materialises the array when an enricher is configured. Use + /// for the on-wire byte count regardless of whether the + /// bytes themselves were materialised. + /// + public byte[] Message { get; init; } = []; + + /// + /// Gets the on-wire body length in bytes. Always populated by the consume middleware, + /// even when is the empty sentinel array because no enricher + /// requested the materialised bytes. Used to stamp the OTel + /// messaging.message.body.size attribute correctly on every consume span. + /// + public int BodySize { get; init; } + + /// + /// Gets the message type name taken from transport headers. + /// + public string Type { get; init; } = string.Empty; + + /// + /// Gets the transport headers associated with the consumed message. + /// + public IReadOnlyDictionary Headers { get; init; } = new Dictionary(StringComparer.Ordinal); +} diff --git a/src/ServiceConnect.Interfaces/Bus/ConsumeEventResult.cs b/src/ServiceConnect.Interfaces/Bus/ConsumeEventResult.cs new file mode 100644 index 000000000..7a004e158 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Bus/ConsumeEventResult.cs @@ -0,0 +1,43 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Represents the outcome of invoking a consumer callback. Framework-produced and +/// consumer-observed only; user mutation after construction has no defined effect. +/// +public sealed class ConsumeEventResult +{ + /// + /// Gets a value indicating whether the consumer completed successfully. + /// + public bool Success { get; init; } + + /// + /// Gets a value indicating whether the dispatcher ran to completion but no + /// processor claimed the message. Distinct from because a + /// handler-less message is not a failure, but callers may want to route it to the + /// error exchange instead of silently acking (see + /// ). + /// + public bool NotHandled { get; init; } + + /// + /// Gets the exception raised by the consumer, if any. + /// + public Exception? Exception { get; init; } + + /// + /// Gets a value indicating whether the failure is terminal — the message is permanently + /// malformed (e.g. unparseable wire payload) and retrying will produce the identical + /// failure. Distinct from =false: a terminal failure must bypass the + /// retry queue and route directly to the error exchange, so the retry budget is not + /// burned on a poison payload that no amount of redelivery will fix. + /// + /// + /// Set by the dispatcher when a structural fault is observed: payload-level deserialisation + /// failures (, + /// from a converter mismatch). Handler-thrown exceptions remain non-terminal — those reflect + /// the handler's dependencies and SHOULD retry. Transports that don't honour this flag fall + /// back to the normal retry path. + /// + public bool TerminalFailure { get; init; } +} diff --git a/src/ServiceConnect.Interfaces/Bus/ConsumerEventHandler.cs b/src/ServiceConnect.Interfaces/Bus/ConsumerEventHandler.cs new file mode 100644 index 000000000..f2faa7402 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Bus/ConsumerEventHandler.cs @@ -0,0 +1,11 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Handles a raw message delivered by a transport consumer. +/// +/// The raw message payload. +/// The transport type name for the message. +/// The message headers. +/// A token that cancels message processing. +/// The consume result reported by the handler. +public delegate Task ConsumerEventHandler(ReadOnlyMemory message, string type, IDictionary headers, CancellationToken cancellationToken); diff --git a/src/ServiceConnect.Interfaces/Bus/IBus.cs b/src/ServiceConnect.Interfaces/Bus/IBus.cs new file mode 100644 index 000000000..5f7e4fbc6 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Bus/IBus.cs @@ -0,0 +1,306 @@ +using ServiceConnect.Interfaces.Options; + +namespace ServiceConnect.Interfaces; + +/// +/// The core message bus interface for publishing, sending, and consuming messages. +/// +/// +/// +/// Delivery is at-least-once. A handler may run more than once for the same logical +/// message — either because the broker redelivered it, or because the consumer did. Idempotency +/// is the consumer's responsibility. +/// +/// +/// Persist-vs-ack gap. When a handler returns successfully, the consumer dispatches an +/// acknowledgement to the broker. If the process crashes (or the broker fails over) between +/// handler success and the ack reaching durable broker state, the message redelivers on next +/// startup. Persistence writes (process-manager state, aggregator data, scheduled timeouts) are +/// completed before the ack — so a redelivered message hits a handler whose persisted state may +/// already reflect the prior run. +/// +/// +/// Implication. Either design handlers to be naturally idempotent (look up by a stable +/// business key, reconcile rather than overwrite), or build a per-consumer deduplication +/// filter pair (BeforeConsuming + OnConsumedSuccessfully) that records each +/// completed MessageId and short-circuits redeliveries. +/// +/// +public interface IBus : IAsyncDisposable +{ + /// + /// Publishes a message to all subscribers of the message type. + /// + /// + /// + /// Publish-confirm timeouts (the broker's ack does not arrive within the configured + /// publish timeout) are retried by the framework's RabbitMQ producer under the + /// at-least-once contract. The same MessageId is reused across attempts, so a + /// consumer-side deduplication filter pair (BeforeConsuming + + /// OnConsumedSuccessfully) can short-circuit duplicates by message id. + /// + /// + /// is . + /// The bus has been disposed. + /// An outgoing filter returned and blocked the publish. + Task PublishAsync(T message, PublishOptions? options = null, CancellationToken cancellationToken = default) where T : Message; + + /// + /// Sends a message to a specific endpoint or to the configured queue mapping. + /// + /// + /// + /// When the message type maps to multiple queues (queue-mapping fan-out), every endpoint is + /// attempted; per-endpoint failures are collected and surface as an + /// . Cancellation via + /// propagates as directly when no prior endpoint + /// has failed; on multi-endpoint fan-out with prior failures, the OCE is wrapped as the + /// first inner exception of an that also carries the prior + /// endpoint failures (so callers see both the cancellation and the partial-fan-out failures). + /// + /// + /// Publish-confirm timeouts (the broker's ack does not arrive within the configured + /// publish timeout) are retried by the framework's RabbitMQ producer under the + /// at-least-once contract. The same MessageId is reused across attempts, so a + /// consumer-side deduplication filter pair (BeforeConsuming + + /// OnConsumedSuccessfully) can short-circuit duplicates by message id. + /// + /// + /// is . + /// The bus has been disposed. + /// An outgoing filter returned and blocked the send. + Task SendAsync(T message, SendOptions? options = null, CancellationToken cancellationToken = default) where T : Message; + + /// + /// Sends a message to each of the specified endpoints. Each delivery is dispatched as a + /// separate -equivalent call; failures on one endpoint do not + /// abort the others — per-endpoint failures are collected and surface as an + /// at the end of the loop. Cancellation via + /// propagates as + /// directly when no prior endpoint has failed; + /// when one or more prior endpoints have already failed, the cancellation surfaces as an + /// whose first inner exception is the + /// and whose remaining inner exceptions are the + /// prior endpoint failures, so callers see both the cancellation and the failures that + /// preceded it. The options.EndPoint field is ignored when this method is called — + /// the explicit parameter wins. + /// + /// or is . + /// is empty. + /// The bus has been disposed. + /// An outgoing filter returned and blocked the multi-endpoint send. + Task SendToManyAsync(T message, IReadOnlyList endPoints, SendOptions? options = null, CancellationToken cancellationToken = default) where T : Message; + + /// + /// Sends a request and waits for a single reply. + /// + /// is . + /// options.Timeout is negative (other than ) or zero (likely default(RequestOptions)). + /// The bus has been disposed. + /// An outgoing filter returned . + /// The outbound send pipeline was cancelled (e.g. transport failure) without the caller token firing. + /// No reply arrived within options.Timeout. + /// The caller's fired. + Task SendRequestAsync(TRequest message, RequestOptions? options = null, CancellationToken cancellationToken = default) + where TRequest : Message where TReply : Message; + + /// + /// Sends a request and waits for multiple replies from all respondents. + /// + /// + /// Under-delivery semantics. When + /// is a positive integer N, this call expects exactly N replies. If fewer than N + /// arrive before expires, the task throws + /// ; the partials received before the + /// timeout fired are exposed on + /// so callers that + /// want to recover them can. When ExpectedReplyCount is zero, negative, or + /// null, no under-delivery check applies — the call returns every reply received + /// during the window. + /// + /// is . + /// options.Timeout is negative (other than ) or zero. + /// The bus has been disposed. + /// An outgoing filter returned . + /// The outbound send pipeline was cancelled without the caller token firing. + /// No reply arrived within options.Timeout, or fewer than options.ExpectedReplyCount replies arrived (when positive). Partials are exposed on . + /// The caller's fired. + Task> SendRequestMultiAsync(TRequest message, RequestOptions? options = null, CancellationToken cancellationToken = default) + where TRequest : Message where TReply : Message; + + /// + /// Publishes a request and invokes a callback for each reply received. + /// + /// + /// + /// Parameter order differs from / + /// (which put options second): is required and C# + /// does not allow an optional parameter (options) to precede a required one, + /// so the callback must come second. The alternative — making options + /// required — would force every caller to pass + /// explicitly, which is worse ergonomics than the position asymmetry. + /// + /// + /// Callback contract. An exception thrown from terminates + /// the request — the awaited task faults with that exception, the request is closed, and + /// every subsequent matching reply is silently dropped. Wrap the callback body in + /// try/catch if log-and-continue per-reply semantics are wanted. + /// + /// + /// EndPoint. must be or + /// empty for this method — request-publish is fanout-only. A non-empty EndPoint + /// throws ; use for + /// single-destination requests. + /// + /// + /// or is . + /// options.EndPoint is non-empty. + /// options.Timeout is negative (other than ) or zero. + /// The bus has been disposed. + /// An outgoing filter returned . + /// No replies arrived within options.Timeout, or fewer than options.ExpectedReplyCount replies arrived. + /// The caller's fired, or an invocation threw and propagated through the awaited task. + Task PublishRequestAsync(TRequest message, Action onReply, RequestOptions? options = null, CancellationToken cancellationToken = default) + where TRequest : Message where TReply : Message; + + /// + /// Routes a message through a series of destinations using a routing slip. + /// + /// or is . + /// is empty or contains an entry with a comma (the routing-slip separator) or that otherwise fails destination validation. + /// The bus has been disposed. + /// An outgoing filter returned and blocked the routed message. + Task RouteAsync(T message, IReadOnlyList destinations, CancellationToken cancellationToken = default) where T : Message; + + /// + /// Creates a streaming connection for sending large messages in chunks. + /// + /// + /// The returned latches into a faulted state on the + /// first transport failure (e.g. PublishException from a deleted destination + /// queue); subsequent WriteAsync calls throw + /// and cannot recover. Create a fresh stream after any write failure. + /// + /// is or whitespace. + /// The bus has been disposed. + /// No is registered in the bus's DI graph. + IMessageBusWriteStream CreateStream(string endpoint) where T : Message; + + /// + /// Starts consuming messages from the configured queue. + /// + /// + /// + /// Single-use lifecycle. The bus is single-use with respect to its consuming state. + /// Once has been called (or + /// has run), the internal stopped flag is latched permanently and this method throws + /// on any subsequent call. There is no reset path. + /// + /// + /// To resume consumption after a stop, dispose the current bus instance and resolve (or + /// construct) a fresh one. In a DI container, this typically means ending the DI lifetime + /// scope that owns the bus singleton and starting a new one — not calling + /// StartConsumingAsync again on the same instance. + /// + /// + /// Also throws if the bus is already consuming + /// (i.e. a concurrent or duplicate StartConsumingAsync call is in progress or has + /// already completed). + /// + /// + /// + /// The bus is already consuming, or has previously been stopped. + /// + Task StartConsumingAsync(CancellationToken cancellationToken = default); + + /// + /// Stops consuming messages and disposes the underlying consumer. + /// + /// This operation is terminal: once stopped, the bus cannot be restarted. + /// will throw . + /// To resume consumption, dispose this bus and create a new instance. + /// + /// + /// + /// Handler cooperation is required for prompt shutdown. The framework signals + /// graceful stop by cancelling the per-message threaded + /// through handler dispatch and by closing the transport admission gate. A handler that + /// performs synchronous I/O or ignores its CancellationToken will block the + /// shutdown grace window for the full duration of that work, up to the configured + /// . Use cancellation-aware async APIs + /// (HttpClient.GetAsync, database drivers that accept a CancellationToken, + /// etc.) inside handlers to ensure prompt shutdown. + /// + Task StopConsumingAsync(CancellationToken cancellationToken = default); + + /// + /// Gets whether the bus is currently consuming messages. Returns only + /// when has completed AND the broker has not cancelled + /// the consumer. Broker-initiated basic.cancel events (queue deleted, policy expired, + /// mirror promoted) flip this getter to via + /// ; BusConsumingHealthCheck reports + /// Unhealthy as a result. + /// + bool IsConsuming { get; } + + /// + /// Gets whether the broker has cancelled the consumer (basic.cancel: queue deleted, + /// policy expired, mirror promoted). Mirrors + /// at the bus level so callers (e.g. BusConsumingHealthCheck) can distinguish a + /// permanent broker-side failure from a transient connection flap. Default + /// implementation returns ; framework-supplied buses override. + /// + bool IsCancelledByBroker => false; + + /// + /// Gets whether the bus has been stopped or is being disposed. Distinct from + /// : that getter also flips false during a transient broker + /// disconnect (which the health check's recovery-grace window absorbs), whereas this + /// flag flips true permanently once or + /// has run, signalling that there is no + /// recovery to wait for. BusConsumingHealthCheck uses it to bypass grace and + /// report Unhealthy immediately on intentional shutdown. Default implementation + /// returns ; framework-supplied buses override. + /// + bool IsStopped => false; + + /// + /// Schedules a to be delivered to the current queue + /// after the specified delay. The message's CorrelationId will equal + /// , which is the standard key for Process + /// Manager correlation. + /// + /// + /// + /// MUST be the saga's own data.CorrelationId + /// — the key the process manager finder will use to load the saga when the timeout + /// fires. A common programmer mistake is to pass the incoming message.CorrelationId + /// instead, which only matches the saga's own correlation id when the inbound message + /// is the one that started the saga. Passing the wrong id silently inserts a stray + /// timeout row whose dispatch will call IProcessManagerFinder.FindData against + /// an id that no saga owns; the timeout is then dropped after retries with no recovery + /// path. There is no runtime way for the bus to validate the supplied id corresponds + /// to the active saga — handlers are responsible for passing the correct id. + /// + /// + /// Two failure shapes for "this bus cannot schedule timeouts" coexist for compatibility: + /// the default-interface-method on this property returns a faulted task with + /// ; the first-party Bus implementation throws + /// when no ITimeoutStore is registered. + /// Callers that need to detect "not configured for timeouts" should catch both. + /// + /// + /// + /// The saga's own correlation id (data.CorrelationId). Must not be ; + /// see remarks for the message-vs-saga correlation pitfall. + /// + /// Time from now after which the timeout message is delivered. Must be strictly positive. + /// Cancels the timeout-store insert; the scheduled delivery itself is not cancellable post-insert. + /// is . + /// is less than or equal to . + /// The bus has no ITimeoutStore registered (first-party Bus only — see remarks). + /// The bus implementation does not support scheduling timeouts (default-interface-method path — see remarks). + /// The bus has been disposed. + Task RequestTimeoutAsync(Guid correlationId, TimeSpan delay, CancellationToken cancellationToken = default) + => Task.FromException(new NotSupportedException("This IBus implementation does not support scheduling timeouts.")); +} diff --git a/src/ServiceConnect.Interfaces/Bus/IConsumeContext.cs b/src/ServiceConnect.Interfaces/Bus/IConsumeContext.cs new file mode 100644 index 000000000..3169c9f79 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Bus/IConsumeContext.cs @@ -0,0 +1,35 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Per-message consume context supplied to handlers. Exposes the bus handle, raw +/// headers, correlation id, a per-message cancellation token, and a reply helper. +/// +public interface IConsumeContext +{ + /// The bus instance on which the message arrived. + IBus Bus { get; } + + /// Read-only view of headers as received from the transport (values may be byte[] or string). + /// Handlers must not mutate headers; the transport layer retains the mutable copy. + IReadOnlyDictionary Headers { get; } + + /// Message id header, if present. + string? MessageId { get; } + + /// Correlation id carried by the incoming message. + Guid CorrelationId { get; } + + /// Cancellation token tied to the consumer loop; fires when consumption stops. + CancellationToken CancellationToken { get; } + + /// + /// Sends back to the requester as a reply, setting the + /// ResponseMessageId header so the request/reply manager correlates it to the + /// originating SendRequestAsync call. + /// + /// The reply message. + /// Optional headers for the reply. The reply destination is implicit + /// from the request's reply-to header; no endpoint or routing key applies. + /// A token that cancels the reply send. + Task ReplyAsync(TReply message, Options.ReplyOptions? options = null, CancellationToken cancellationToken = default) where TReply : Message; +} diff --git a/src/ServiceConnect.Interfaces/Bus/IConsumer.cs b/src/ServiceConnect.Interfaces/Bus/IConsumer.cs new file mode 100644 index 000000000..45dcfba8f --- /dev/null +++ b/src/ServiceConnect.Interfaces/Bus/IConsumer.cs @@ -0,0 +1,60 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Consumes messages from the message broker. +/// +public interface IConsumer : IAsyncDisposable +{ + /// + /// Gets whether the consumer is currently connected to the broker. + /// + bool IsConnected { get; } + + /// + /// Gets whether the broker has cancelled this consumer (e.g. queue deleted, queue policy + /// expired, mirror promoted). When true the consumer is no longer receiving deliveries + /// from the broker; returns false to signal the unhealthy state. + /// + bool IsCancelledByBroker { get; } + + /// + /// Starts consuming messages from the specified queue for the given message types. + /// + Task StartConsumingAsync(string queueName, IReadOnlyList messageTypes, ConsumerEventHandler eventHandler, CancellationToken cancellationToken = default); + + /// + /// Issues a graceful stop: instructs the broker to stop delivering messages to + /// this consumer and drains any in-flight handler invocations. Does NOT tear + /// down the underlying channel/connection — that happens on + /// . Idempotent. + /// + /// + /// + /// The default-interface-method is a no-op so existing third-party + /// implementations remain source-compatible. Custom + /// transports that want graceful shutdown semantics should override this — without + /// an override, Bus.StopConsumingAsync only flips the consuming flag and + /// the broker keeps delivering until DI disposal. + /// + /// + /// Handler cooperation. Drain semantics depend on every in-flight handler + /// observing the threaded through dispatch. A + /// handler that performs synchronous I/O or ignores its CancellationToken + /// will block the drain for the full duration of that work. Implementations + /// should bound their own drain wait by the host's graceful-shutdown grace + /// window rather than waiting indefinitely. + /// + /// + Task StopConsumingAsync(CancellationToken cancellationToken = default) => Task.CompletedTask; + + /// + /// Gets whether the consumer has been stopped or is being disposed. Distinct from + /// : that getter also flips false during a transient broker + /// disconnect, whereas this flag flips true permanently once + /// or + /// has run, signalling that there is no recovery to wait for. + /// ConsumerConnectionHealthCheck uses it to bypass the recovery-grace window + /// on intentional shutdown. Default implementation returns . + /// + bool IsStopped => false; +} diff --git a/src/ServiceConnect.Interfaces/Bus/IMessageDispatcher.cs b/src/ServiceConnect.Interfaces/Bus/IMessageDispatcher.cs new file mode 100644 index 000000000..a6bf8acb2 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Bus/IMessageDispatcher.cs @@ -0,0 +1,12 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Dispatches incoming messages to the appropriate handler. +/// +public interface IMessageDispatcher +{ + /// + /// Deserializes and dispatches a message to its registered handler. + /// + Task DispatchAsync(ReadOnlyMemory messageBytes, string messageType, IReadOnlyDictionary headers, CancellationToken cancellationToken = default); +} diff --git a/src/ServiceConnect.Interfaces/Bus/IProducer.cs b/src/ServiceConnect.Interfaces/Bus/IProducer.cs new file mode 100644 index 000000000..7f86bc107 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Bus/IProducer.cs @@ -0,0 +1,167 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Produces messages to the message broker. +/// +public interface IProducer : IAsyncDisposable +{ + /// + /// Publishes a serialized message to all subscribers of the specified type. + /// + /// The logical message type. + /// The serialized message body. + /// Optional read-only headers to include with the message. + /// A token used to cancel the publish operation. + Task PublishAsync(Type type, ReadOnlyMemory body, IReadOnlyDictionary? headers = null, CancellationToken cancellationToken = default); + + /// + /// Publishes a serialized message to subscribers of the specified type, with an AMQP-level + /// routing key for topic-exchange dispatch. + /// + /// The logical message type. + /// The serialized message body. + /// The transport routing key (empty string for fanout dispatch). + /// Optional read-only headers to include with the message. + /// A token used to cancel the publish operation. + /// + /// Default-interface-method shim: third-party implementations that + /// predate this overload fall back to the no-routing-key path (the AMQP routing key is + /// dropped — the same behaviour as before). First-party transports override this to honour + /// the routing key on the wire so PublishOptions.RoutingKey is no longer silently + /// ignored. Callers must continue to read for + /// application-level routing concepts; the parameter here drives only the transport. + /// + Task PublishAsync(Type type, ReadOnlyMemory body, string? routingKey, IReadOnlyDictionary? headers = null, CancellationToken cancellationToken = default) + => PublishAsync(type, body, headers, cancellationToken); + + /// + /// Sends a serialized message to the configured queue for the specified type. + /// + /// The logical message type used to resolve destination queues. + /// The serialized message body. + /// Optional read-only headers to include with the message. + /// A token used to cancel the send operation. + /// + /// When the message type maps to multiple queues, every endpoint is attempted; per-endpoint + /// failures are collected and surface as an at the end of + /// the loop. Cancellation via propagates as + /// directly and aborts the remaining iterations. + /// + Task SendAsync(Type type, ReadOnlyMemory body, IReadOnlyDictionary? headers = null, CancellationToken cancellationToken = default); + + /// + /// Sends a serialized message to a specific endpoint. + /// + /// The destination queue name. + /// The logical message type used when stamping headers. + /// The serialized message body. + /// Optional read-only headers to include with the message. + /// A token used to cancel the send operation. + Task SendAsync(string endPoint, Type type, ReadOnlyMemory body, IReadOnlyDictionary? headers = null, CancellationToken cancellationToken = default); + + /// + /// Sends a serialized message to a specific endpoint, carrying the framework's routing-slip + /// hop counter so it can be stamped authoritatively after middleware runs. + /// + /// The destination queue name. + /// The logical message type used when stamping headers. + /// The serialized message body. + /// + /// The hop count set by Bus.RouteAsync; stamped onto the outgoing headers by the + /// producer after the send middleware chain, so middleware cannot override the framework value. + /// + /// Optional read-only headers to include with the message. + /// A token used to cancel the send operation. + /// + /// Default-interface-method shim: third-party implementations that + /// predate this overload fall back to the base SendAsync path. When a hop counter + /// is supplied, it is injected into a copy of the caller headers so the wire stamp is + /// preserved even for transports that have not recompiled against this overload. + /// First-party transports override to honour the separate parameter directly. + /// + Task SendAsync(string endPoint, Type type, ReadOnlyMemory body, int? routingSlipHopsCompleted, IReadOnlyDictionary? headers = null, CancellationToken cancellationToken = default) + { + if (routingSlipHopsCompleted is { } hops) + { + // Belt-and-braces for third-party IProducer implementations that do not + // override this overload. The framework treats RoutingSlipHopsCompleted + // as a wire-stamped reserved key; without this injection, a third-party + // transport would silently drop the cross-service amplification cap. + var injected = headers is not null + ? new Dictionary(headers, StringComparer.Ordinal) + : new Dictionary(StringComparer.Ordinal); + injected[HeaderKeys.RoutingSlipHopsCompleted] = hops.ToString(System.Globalization.CultureInfo.InvariantCulture); + return SendAsync(endPoint, type, body, (IReadOnlyDictionary)injected, cancellationToken); + } + + return SendAsync(endPoint, type, body, headers, cancellationToken); + } + + /// + /// Sends raw bytes to a specific endpoint without type-based routing. The + /// is the logical message type the packet represents (for example, the element type of a stream); + /// it is used to stamp transport-reserved type headers authoritatively. + /// + /// The destination queue name. + /// The logical message type the packet represents. + /// The raw payload to send. + /// Optional read-only headers to include with the packet. + /// A token used to cancel the send operation. + Task SendBytesAsync(string endPoint, Type type, ReadOnlyMemory packet, IReadOnlyDictionary? headers = null, CancellationToken cancellationToken = default); + + /// + /// Gets whether this producer honours the routingKey parameter on + /// . + /// Returns for the default-interface-method shim — third-party + /// producers that haven't overridden the routing-key overload silently drop the key on + /// the wire. First-party transports (RabbitMQ) override to . + /// + /// + /// Bus uses this capability flag to emit a once-per-bus LogWarning when a caller supplies + /// PublishOptions.RoutingKey to a producer that doesn't honour it — without the + /// warning the routing-key intent is silently dropped on the wire and topic-exchange + /// dispatch never matches. + /// + bool SupportsRoutingKey => false; + + /// + /// Gets the maximum message size in bytes supported by the broker. + /// + long MaximumMessageSize { get; } + + /// + /// Gets whether the producer is currently connected and ready to publish or send. + /// + /// + /// Returns before the first publish/send call (the producer + /// connects lazily) and after a connection drop until the next reconnect. Mirrors + /// . + /// + bool IsHealthy { get; } + + /// + /// Gets whether the producer has attempted at least one connection to the broker. + /// + /// + /// Returns for a freshly-constructed producer that has not + /// yet been asked to publish or send. Once a publish/send call begins (whether or + /// not it succeeds), this becomes and stays + /// for the producer's lifetime. The producer health check uses this to distinguish + /// "lazy, not yet tried" (Healthy) from "tried and currently disconnected" (Unhealthy). + /// + bool HasAttemptedConnection { get; } + + /// + /// Returns a single-snapshot read of and . + /// Health-check probes that need both values must use this method rather than reading the + /// two properties separately — the pre-snapshot two-read pair admits a race where a + /// publish-success transition lands between the reads and the probe sees stale state. + /// + /// + /// The default implementation reads the two properties in order and packs them into a + /// snapshot — preserving the existing two-read race for third-party producers. First-party + /// producers (RabbitMQ) override with a truly-atomic snapshot read. + /// + ProducerHealthSnapshot GetHealthSnapshot() + => new(IsHealthy, HasAttemptedConnection); +} diff --git a/src/ServiceConnect.Interfaces/Bus/IRequestReplyManager.cs b/src/ServiceConnect.Interfaces/Bus/IRequestReplyManager.cs new file mode 100644 index 000000000..f45ea7305 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Bus/IRequestReplyManager.cs @@ -0,0 +1,102 @@ +using ServiceConnect.Interfaces.Exceptions; +using ServiceConnect.Interfaces.Options; + +namespace ServiceConnect.Interfaces; + +/// +/// Coordinates request/reply interactions on top of the transport pipeline. +/// +public interface IRequestReplyManager +{ + /// + /// Sends a request and waits for a single reply. + /// + /// The request message type. + /// The expected reply type. + /// The request message. + /// The outgoing headers to send with the request. + /// Request routing and timeout options. + /// A token that cancels the request. + /// The deserialized reply. + /// + /// Thrown when the outbound send pipeline cancelled before the request reached the broker. + /// Distinct from a timeout () and from caller-token + /// cancellation (). + /// + Task SendRequestAsync( + TRequest message, + IDictionary headers, + RequestOptions options, + CancellationToken cancellationToken = default) + where TRequest : Message + where TReply : Message; + + /// + /// Sends a request and collects multiple replies. + /// + /// The request message type. + /// The expected reply type. + /// The request message. + /// The outgoing headers to send with the request. + /// Request routing and timeout options. + /// A token that cancels the request. + /// The replies collected before completion. + /// + /// Under-delivery semantics. When + /// is a positive integer N, this call expects exactly N replies. If fewer than N + /// arrive before expires, the task throws + /// ; the partials received before the timeout + /// fired are exposed on . When + /// ExpectedReplyCount is zero, negative, or null, no under-delivery check + /// applies — the call returns every reply received during the window. + /// + /// + /// Thrown when is positive and fewer + /// replies than requested arrived before fired. + /// The partials are accessible via . + /// + /// + /// Thrown when the outbound send pipeline cancelled before the request reached the broker. + /// Distinct from a timeout () and from caller-token + /// cancellation (). + /// + Task> SendRequestMultiAsync( + TRequest message, + IDictionary headers, + RequestOptions options, + CancellationToken cancellationToken = default) + where TRequest : Message + where TReply : Message; + + /// + /// Publishes a request and invokes a callback for each reply that arrives. + /// + /// The request message type. + /// The expected reply type. + /// The request message. + /// The outgoing headers to send with the request. + /// Request routing and timeout options. + /// The callback to invoke for each reply. + /// A token that cancels the request. + /// + /// Thrown when the outbound publish pipeline cancelled before the request reached the broker. + /// Distinct from a timeout () and from caller-token + /// cancellation (). + /// + Task PublishRequestAsync( + TRequest message, + IDictionary headers, + RequestOptions options, + Action onReply, + CancellationToken cancellationToken = default) + where TRequest : Message + where TReply : Message; + + /// + /// Attempts to match an incoming reply to a pending request. + /// + /// The correlation identifier used to track the pending request. + /// The serialized reply payload. + /// The CLR type of the reply message. + void ProcessReply(string messageId, ReadOnlyMemory messageBytes, Type type); +} diff --git a/src/ServiceConnect.Interfaces/Bus/OutgoingEventArgs.cs b/src/ServiceConnect.Interfaces/Bus/OutgoingEventArgs.cs new file mode 100644 index 000000000..75b13c60c --- /dev/null +++ b/src/ServiceConnect.Interfaces/Bus/OutgoingEventArgs.cs @@ -0,0 +1,40 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Base event payload for outgoing publish and send telemetry. +/// +/// +/// Abstract; consumers receive instances of or +/// . Future versions may add required members to this base +/// class — subclassing is reserved to the framework so consumers are not broken by +/// a future minor-version addition. +/// +public abstract class OutgoingEventArgs +{ + /// Initialises a new instance of the class. + protected OutgoingEventArgs() { } + /// + /// Gets the outgoing message instance, when available. + /// + public Message? Message { get; init; } + + /// + /// Gets the outgoing transport headers. init-only so a subscriber can + /// still mutate individual entries (e.g. a telemetry hook injecting a + /// traceparent) but cannot swap out the entire dictionary after the + /// framework has built it. A public setter would let subscribers replace the + /// map and strip required MessageType/CorrelationId entries before the + /// transport send. + /// + public IDictionary Headers + { + get => _headers; + init + { + ArgumentNullException.ThrowIfNull(value); + _headers = value; + } + } + + private readonly IDictionary _headers = new Dictionary(StringComparer.Ordinal); +} diff --git a/src/ServiceConnect.Interfaces/Bus/ProducerHealthSnapshot.cs b/src/ServiceConnect.Interfaces/Bus/ProducerHealthSnapshot.cs new file mode 100644 index 000000000..07da9328c --- /dev/null +++ b/src/ServiceConnect.Interfaces/Bus/ProducerHealthSnapshot.cs @@ -0,0 +1,13 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Atomic snapshot of health-relevant state. +/// Returned by so health-check probes can read +/// the (IsHealthy, HasAttemptedConnection) pair as a single observation; reading the two +/// properties separately admits a race where a publish-success transition lands between +/// the reads and the probe sees stale-IsHealthy + fresh-HasAttemptedConnection — a +/// false-negative Unhealthy. +/// +/// Whether the producer's broker connection is currently open. +/// Whether the producer has ever attempted to connect to the broker. +public readonly record struct ProducerHealthSnapshot(bool IsHealthy, bool HasAttemptedConnection); diff --git a/src/ServiceConnect.Interfaces/Bus/PublishEventArgs.cs b/src/ServiceConnect.Interfaces/Bus/PublishEventArgs.cs new file mode 100644 index 000000000..d8beb596c --- /dev/null +++ b/src/ServiceConnect.Interfaces/Bus/PublishEventArgs.cs @@ -0,0 +1,19 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Outgoing telemetry payload for published messages. +/// +public sealed class PublishEventArgs : OutgoingEventArgs +{ + /// + /// Gets the broker-side exchange name. For RabbitMQ this is the value stamped onto the + /// messaging.destination.name OTel attribute (per the messaging semantic conventions). + /// + public string Exchange { get; init; } = string.Empty; + + /// + /// Gets the routing key used when publishing the message. Stamped onto the RabbitMQ-specific + /// messaging.rabbitmq.destination.routing_key OTel attribute when non-empty. + /// + public string RoutingKey { get; init; } = string.Empty; +} diff --git a/src/ServiceConnect.Interfaces/Bus/SendEventArgs.cs b/src/ServiceConnect.Interfaces/Bus/SendEventArgs.cs new file mode 100644 index 000000000..c71070586 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Bus/SendEventArgs.cs @@ -0,0 +1,16 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Outgoing telemetry payload for point-to-point sends. For multi-endpoint fan-out +/// (IBus.SendToManyAsync), one is raised per +/// destination — each with its own . Subscribers that need to +/// see the full fan-out should correlate by message CorrelationId, which is +/// stable across the per-endpoint deliveries. +/// +public sealed class SendEventArgs : OutgoingEventArgs +{ + /// + /// Gets the destination endpoint for this delivery. + /// + public string EndPoint { get; init; } = string.Empty; +} diff --git a/src/ServiceConnect.Interfaces/Configuration/IBusConfiguration.cs b/src/ServiceConnect.Interfaces/Configuration/IBusConfiguration.cs new file mode 100644 index 000000000..774ebca80 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Configuration/IBusConfiguration.cs @@ -0,0 +1,185 @@ +namespace ServiceConnect.Interfaces.Configuration; + +/// +/// Configures ServiceConnect bus runtime behavior. +/// +public interface IBusConfiguration +{ + /// + /// Gets or sets a value indicating whether handler discovery scans configured assemblies automatically. + /// + /// + /// When false, handler discovery does not scan the AppDomain automatically. + /// Assemblies explicitly supplied via + /// are still scanned — the explicit list takes precedence over this flag. + /// + bool ScanForMessageHandlers { get; set; } + + /// + /// Gets or sets a value indicating whether message consumption starts automatically with the hosted service. + /// + bool AutoStartConsuming { get; set; } + + /// + /// Gets or sets a value indicating whether process-manager timeouts are polled and dispatched. + /// + bool EnableProcessManagerTimeouts { get; set; } + + /// + /// Gets or sets the interval between process-manager timeout polls. + /// + TimeSpan ProcessManagerTimeoutPollInterval { get; set; } + + /// + /// Gets or sets the number of consumer loops to run in parallel. + /// + int ConsumerCount { get; set; } + + /// + /// Optional async hook invoked when message dispatch throws. Awaited by the dispatcher + /// before returning the failure result, so a slow handler does not block the consumer thread. + /// + /// + /// + /// The cancellation token is the dispatcher's shutdown CTS; honour it to avoid stretching + /// shutdown deadlines. + /// + /// + /// Notification hook semantics. The dispatcher invokes this callback after the + /// message-dispatch failure has already been recorded. The original exception is attached + /// to the returned ConsumeEventResult regardless of what the callback does — there + /// is no way for the callback to signal "treat this exception as success." To suppress + /// retries, throw or swallow inside the handler, or configure DisableErrors at the + /// queue level. + /// + /// + /// Crash visibility. If the callback itself throws, the dispatcher catches the + /// exception, logs at Error level with the message-type for correlation, and + /// continues. The original dispatch failure flows through to the retry/error-queue path + /// normally; a flaky notification hook cannot block message processing. + /// + /// + Func? ExceptionHandler { get; set; } + /// + /// When true (default false), is + /// stamped into outgoing SourceMachine and incoming DestinationMachine + /// headers. Leaking an internal hostname to broker audit consumers is information + /// disclosure in shared-broker deployments, so this defaults off. + /// + /// WARNING: When enabled, Environment.MachineName is stamped into every message header, exposing internal host names to any consumer. Do not enable where messages cross trust boundaries. + bool IncludeMachineNameInHeaders { get; set; } + /// + /// When true (default), validates + /// that the SourceAddress header points to a queue known from + /// , , + /// , or . + /// Set to false to allow replies to arbitrary queue names. + /// + bool ValidateReplyDestinations { get; set; } + /// + /// When true (default), the handler processor will forward messages along + /// routing-slip destinations found in the RoutingSlip header. When false, + /// routing-slip headers are silently ignored. Destinations are also validated against + /// known queues when enabled. + /// + bool EnableRoutingSlipProcessing { get; set; } + + /// + /// Maximum number of routing-slip destinations honoured when forwarding an inbound + /// RoutingSlip header. Defaults to 32. A header containing more entries + /// than this is rejected (logged and dropped) without forwarding to any destination. + /// + /// + /// Caps the per-message amplification factor when a hostile inbound message carries + /// a hand-crafted slip header (e.g. victim-q,victim-q,… repeated within the + /// per-value header byte budget). Without a cap, ~900 entries fit within the default + /// 8 KiB header-value cap, so one delivered message can drive ~900 handler invocations. + /// Lowering the cap below 32 trades hops-per-business-workflow against DoS protection. + /// + int MaxRoutingSlipHops { get; set; } + + /// + /// When true, messages that the dispatcher runs to completion on but which no + /// processor claims (see ) are published to + /// the error exchange instead of silently acked. Defaults to false — unhandled + /// messages are logged and acked, preserving historical behaviour. Enable when a + /// handler-less message should be treated as a terminal failure for operator visibility. + /// + bool DeadLetterUnhandledMessages { get; set; } + + /// + /// When true, the heuristic fallback inside + /// ConsumeContext.IsTrustedRequestReplyEnvelope is disabled — only requests + /// tracked by the local request-reply manager are trusted to bypass + /// . Defaults to false, which + /// preserves the legacy behaviour: any inbound message with a non-empty + /// RequestMessageId, a SourceAddress, a MessageId, no + /// ResponseMessageId, and DestinationAddress == this queue is also + /// trusted as a request envelope. That fallback enables cross-bus request-reply (the + /// request originated on a different bus instance and the local + /// IReplyStatusRequestReplyManager doesn't know it), but the headers it relies + /// on can be crafted by any external producer that knows our queue name — so a hostile + /// peer could redirect our reply by spoofing them. + /// + /// + /// Set to true when (a) the service does not participate in cross-bus + /// request-reply, or (b) the operator explicitly verifies that all upstream callers + /// route through a tracked RequestReplyManager. Otherwise leave at the default + /// to preserve backward compatibility — strict mode will reject legitimate cross-bus + /// request-reply traffic that legacy callers rely on. The flag is non-breaking because + /// the default value preserves existing trust decisions exactly. + /// + bool StrictReplyValidation { get; set; } + + /// + /// Maximum time Bus.DisposeAsync waits for the lifecycle semaphore before + /// proceeding with teardown anyway. A wedged StartConsumingAsync (e.g., broker + /// partition during handshake) would otherwise block the semaphore indefinitely and + /// hang container shutdown. Default: 30 seconds. Must be positive and at most + /// uint.MaxValue - 1 milliseconds (the .NET timer-API ceiling), or + /// for no bound. + /// + TimeSpan DisposeTimeout { get; set; } + + /// + /// Gets or sets whether the host is allowed to start without an + /// registered. Defaults to : BusHostedService.StartAsync + /// throws at host start if no + /// has been registered, surfacing the missing transport at host build time rather than + /// at the first publish/send/CreateStream call. Set to only + /// in tests or specialised in-memory scenarios that legitimately operate without a + /// producer (consume-only buses). + /// + bool AllowMissingProducer { get; set; } + + /// + /// Gets or sets the maximum number of in-flight request-reply exchanges before + /// SendRequestAsync / SendRequestMultiAsync throws + /// ("cap reached"). Defaults to 10,000. + /// Each in-flight request pins a Timer, CancellationTokenSource, and TaskCompletionSource; + /// the cap defends against unbounded memory growth from + /// callers that never wake or hot loops of unawaited requests. Increase for genuine + /// high-concurrency request-fan workloads; decrease to harden against caller bugs. + /// Must be positive. + /// + int MaxInflightRequests { get; set; } + + /// + /// Gets or sets the maximum total bytes a single inbound stream may reassemble + /// before MessageBusReadStream.Write throws . + /// Defaults to 100 MB (104,857,600 bytes). Defends against unbounded memory growth + /// from hostile or buggy producers that never close their stream. Raise for + /// deployments that stream legitimately large artefacts (file uploads, ML models); + /// lower to harden memory-constrained hosts. Must be positive. + /// + long MaxStreamSizeBytes { get; set; } + + /// + /// Gets or sets the maximum number of concurrently-tracked partial inbound streams. + /// Defaults to 1,000. StreamProcessor rejects new streams (warning log + drop) + /// when this cap is reached; defends against DoS via stream-slot exhaustion. Raise + /// for high-concurrency file-transfer workloads; lower to harden memory-constrained + /// hosts. Must be positive. + /// + int MaxActiveStreams { get; set; } +} diff --git a/src/ServiceConnect.Interfaces/Configuration/IPersistenceConfiguration.cs b/src/ServiceConnect.Interfaces/Configuration/IPersistenceConfiguration.cs new file mode 100644 index 000000000..c0d155a6c --- /dev/null +++ b/src/ServiceConnect.Interfaces/Configuration/IPersistenceConfiguration.cs @@ -0,0 +1,22 @@ +namespace ServiceConnect.Interfaces.Configuration; + +/// +/// Configures persistence storage used by process managers and aggregators. +/// +public interface IPersistenceConfiguration +{ + /// + /// Gets or sets the provider-specific connection string. + /// + string ConnectionString { get; set; } + + /// + /// Gets or sets the database or logical store name. + /// + string DatabaseName { get; set; } + + /// + /// Gets or sets the collection or container name used for aggregator state. + /// + string AggregatorCollectionName { get; set; } +} diff --git a/src/ServiceConnect.Interfaces/Configuration/IPipelineConfiguration.cs b/src/ServiceConnect.Interfaces/Configuration/IPipelineConfiguration.cs new file mode 100644 index 000000000..f0e31a16a --- /dev/null +++ b/src/ServiceConnect.Interfaces/Configuration/IPipelineConfiguration.cs @@ -0,0 +1,40 @@ +namespace ServiceConnect.Interfaces.Configuration; + +/// +/// Exposes the registered filter and middleware types for the message pipeline. +/// +public interface IPipelineConfiguration +{ + /// + /// Gets the filters that run before handler invocation. + /// + IReadOnlyList BeforeConsumingFilters { get; } + + /// + /// Gets the filters that run after handler invocation. + /// + IReadOnlyList AfterConsumingFilters { get; } + + /// + /// Gets the filters that run only after a successful handler invocation + /// (the dispatcher chain returned = true + /// and = false). Filters in this stage + /// observe successful consumption only; failures and unhandled messages skip them. + /// + IReadOnlyList OnConsumedSuccessfullyFilters { get; } + + /// + /// Gets the filters that run on outgoing messages. + /// + IReadOnlyList OutgoingFilters { get; } + + /// + /// Gets the middleware types that wrap message processing. + /// + IReadOnlyList MessageProcessingMiddleware { get; } + + /// + /// Gets the middleware types that wrap outgoing send and publish operations. + /// + IReadOnlyList SendMessageMiddleware { get; } +} diff --git a/src/ServiceConnect.Interfaces/Configuration/IQueueConfiguration.cs b/src/ServiceConnect.Interfaces/Configuration/IQueueConfiguration.cs new file mode 100644 index 000000000..2ee46d848 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Configuration/IQueueConfiguration.cs @@ -0,0 +1,85 @@ +namespace ServiceConnect.Interfaces.Configuration; + +/// +/// Configures queue names and message-to-queue routing. +/// +public interface IQueueConfiguration +{ + /// + /// Gets or sets the primary queue name used by the bus. + /// + string QueueName { get; set; } + + /// + /// Gets or sets the queue name used for failed messages. + /// + string ErrorQueueName { get; set; } + + /// + /// Gets or sets the queue name used for audit copies. + /// + string AuditQueueName { get; set; } + + /// + /// Gets or sets a value indicating whether message auditing is enabled. + /// + bool AuditingEnabled { get; set; } + + /// + /// Gets or sets a value indicating whether failed messages bypass the error topology. + /// + /// + /// When , the consumer skips every publish to the error exchange: + /// exhausted-retry messages, validator-rejected messages (missing type-name, oversized + /// body, oversized headers), the no-handler dead-letter branch, AND the error-exchange + /// fallback that normally runs when a retry-queue republish itself fails. In all of + /// those cases the original delivery is acked and the message is dropped. Observability: + /// the drop is surfaced on the messaging.serviceconnect.retry.drops counter with + /// error.type=errors-disabled so operators can alert on the drop rate. + /// + /// Auditing is orthogonal — gated independently by on the + /// path. Setting to + /// does not suppress audit publishes. + /// + /// + /// The retry-queue republish path is also unaffected — failed handlers are still + /// republished to the per-queue retry queue with an incremented RetryCount header + /// up to ITransportConfiguration.MaxRetries. Only the error-exchange terminal + /// destination is disabled. + /// + /// + bool DisableErrors { get; set; } + + /// + /// Gets or sets a value indicating whether the main queue is purged during startup. + /// + bool PurgeQueueOnStartup { get; set; } + + /// + /// Gets the configured message-to-queue routing table. + /// + IReadOnlyDictionary> QueueMappings { get; } + + /// + /// Adds a single queue mapping for the specified message type. + /// + /// The message type to route. + /// The destination queue name. + void AddQueueMapping(Type messageType, string queue); + + /// + /// Adds multiple queue mappings for the specified message type. + /// + /// The message type to route. + /// The destination queue names. The framework snapshots the + /// caller's collection on entry; subsequent mutations do not affect the routing table. + void AddQueueMapping(Type messageType, IReadOnlyList queues); + + /// + /// Attempts to resolve the configured queue mappings for a message type. + /// + /// The message type to look up. + /// When this method returns, contains the configured queues if a mapping exists. + /// when a mapping exists; otherwise . + bool TryGetQueueMapping(Type messageType, out IReadOnlyList queues); +} diff --git a/src/ServiceConnect.Interfaces/Configuration/ITransportConfiguration.cs b/src/ServiceConnect.Interfaces/Configuration/ITransportConfiguration.cs new file mode 100644 index 000000000..3879e35b7 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Configuration/ITransportConfiguration.cs @@ -0,0 +1,123 @@ +using System.Net.Security; +using System.Security.Authentication; +using System.Security.Cryptography.X509Certificates; + +namespace ServiceConnect.Interfaces.Configuration; + +/// +/// Configures transport connectivity, retries, and TLS behavior. +/// +public interface ITransportConfiguration +{ + /// + /// Gets or sets the transport host name. + /// + string Host { get; set; } + + /// + /// Gets or sets the transport username. + /// + string? Username { get; set; } + + /// + /// Gets or sets the transport password. + /// + string? Password { get; set; } + + /// + /// Gets or sets the virtual host or namespace used by the broker. + /// + string? VirtualHost { get; set; } + /// Dead-letter retry delay, in milliseconds. + int RetryDelay { get; set; } + + /// + /// Gets or sets the maximum retry attempts before the message is treated as terminally failed. + /// + int MaxRetries { get; set; } + + /// + /// Gets or sets the consumer prefetch count. + /// + ushort PrefetchCount { get; set; } + /// + /// Time to wait for in-flight messages to drain during graceful shutdown, in milliseconds. + /// + int GracefulShutdownTimeoutMilliseconds { get; set; } + + /// + /// Gets or sets a value indicating whether TLS is enabled. Defaults to : + /// the framework connects to the broker over TLS on port 5671 unless overridden. + /// + /// + /// To connect to a plaintext broker (e.g. a local RabbitMQ in Docker without TLS configured), + /// set this to ; the framework logs a Warning when TLS is + /// disabled against a non-loopback host unless is + /// set to . + /// + bool SslEnabled { get; set; } + + /// + /// Gets or sets a value indicating whether the plaintext-against-non-loopback-host warning + /// is suppressed. Set to in environments where plaintext is intentional + /// (e.g. Docker Compose service names such as "rabbitmq" that resolve to an internal + /// network address but are not loopback). Defaults to . + /// + /// + /// Default implementation returns and ignores writes; override either + /// accessor as needed. + /// + bool SuppressPlaintextWarning { get => false; set { } } + + /// + /// Gets or sets the TLS policy errors that are tolerated during remote certificate validation. + /// + SslPolicyErrors AcceptablePolicyErrors { get; set; } + + /// + /// Gets or sets the expected remote server name for TLS validation. + /// + string? ServerName { get; set; } + + /// + /// Gets or sets the client certificate file path. + /// + string? CertPath { get; set; } + + /// + /// Gets or sets the passphrase used to open the client certificate file. + /// + string? CertPassphrase { get; set; } + + /// + /// Gets or sets the in-memory client certificates to present to the broker. + /// + X509CertificateCollection? Certs { get; set; } + + /// + /// Gets or sets the TLS protocol selection. + /// + SslProtocols SslProtocol { get; set; } + + /// + /// Gets or sets the callback used to choose a local client certificate. + /// + LocalCertificateSelectionCallback? CertificateSelectionCallback { get; set; } + + /// + /// Gets or sets the callback used to validate the remote certificate. + /// + RemoteCertificateValidationCallback? CertificateValidationCallback { get; set; } + + /// + /// Gets the provider-specific client settings. + /// + IReadOnlyDictionary ClientSettings { get; } + + /// + /// Stores a provider-specific client setting. + /// + /// The setting key. + /// The setting value. + void SetClientSetting(string key, object value); +} diff --git a/src/ServiceConnect.Interfaces/ConsumeEventArgs.cs b/src/ServiceConnect.Interfaces/ConsumeEventArgs.cs deleted file mode 100644 index aa2438433..000000000 --- a/src/ServiceConnect.Interfaces/ConsumeEventArgs.cs +++ /dev/null @@ -1,19 +0,0 @@ -using System; -using System.Collections.Generic; - -namespace ServiceConnect.Interfaces; - -public class ConsumeEventArgs -{ - public byte[] Message { get; init; } = Array.Empty(); - - public string Type { get; init; } = string.Empty; - - public IDictionary Headers - { - get => _headers; - init => _headers = value is not null ? value : new Dictionary(); - } - - private IDictionary _headers = new Dictionary(); -} \ No newline at end of file diff --git a/src/ServiceConnect.Interfaces/ConsumeEventResult.cs b/src/ServiceConnect.Interfaces/ConsumeEventResult.cs deleted file mode 100644 index 4340c457d..000000000 --- a/src/ServiceConnect.Interfaces/ConsumeEventResult.cs +++ /dev/null @@ -1,26 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; - -namespace ServiceConnect.Interfaces -{ - public class ConsumeEventResult - { - public bool Success { get; set; } - public Exception Exception { get; set; } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Interfaces/ConsumerEventHandler.cs b/src/ServiceConnect.Interfaces/ConsumerEventHandler.cs deleted file mode 100644 index 58b312a14..000000000 --- a/src/ServiceConnect.Interfaces/ConsumerEventHandler.cs +++ /dev/null @@ -1,23 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System.Collections.Generic; -using System.Threading.Tasks; - -namespace ServiceConnect.Interfaces -{ - public delegate Task ConsumerEventHandler(byte[] message, string type, IDictionary headers); -} \ No newline at end of file diff --git a/src/ServiceConnect.Interfaces/Container/IContainer.cs b/src/ServiceConnect.Interfaces/Container/IContainer.cs deleted file mode 100644 index 46e9b9c2c..000000000 --- a/src/ServiceConnect.Interfaces/Container/IContainer.cs +++ /dev/null @@ -1,32 +0,0 @@ -using System; -using System.Collections.Generic; - -namespace ServiceConnect.Interfaces.Container -{ - public interface IContainer - { - /// - /// Resolves a registered service, provided an interface. Services are register as singleton - /// - /// - /// Interface service type - /// Service instance - TService Resolve(); - - /// - /// Resolves a registered service, provided an interface. Services are register as singleton - /// - /// - /// Interface service type - /// Service instance - object Resolve(Type tService); - - /// - /// Resolves a registered service with constructor parameters - /// - /// - /// - /// - object Resolve(Type tService, IDictionary arguments); - } -} diff --git a/src/ServiceConnect.Interfaces/Container/IServicesRegistrar.cs b/src/ServiceConnect.Interfaces/Container/IServicesRegistrar.cs deleted file mode 100644 index aa9a70478..000000000 --- a/src/ServiceConnect.Interfaces/Container/IServicesRegistrar.cs +++ /dev/null @@ -1,6 +0,0 @@ -namespace ServiceConnect.Interfaces.Container -{ - public interface IServicesRegistrar : IContainer, ITypeRegistrar - { - } -} diff --git a/src/ServiceConnect.Interfaces/Container/ITypeRegistrar.cs b/src/ServiceConnect.Interfaces/Container/ITypeRegistrar.cs deleted file mode 100644 index 79decfc2a..000000000 --- a/src/ServiceConnect.Interfaces/Container/ITypeRegistrar.cs +++ /dev/null @@ -1,18 +0,0 @@ -using System; -using System.Collections.Generic; - -namespace ServiceConnect.Interfaces.Container -{ - public interface ITypeRegistrar - { - ITypeRegistrar RegisterFor(Type implementation, IEnumerable interfaces); - - ITypeRegistrar RegisterFor(Type implementation, params Type[] interfaces); - - ITypeRegistrar RegisterFor(object instance, params Type[] interfaces); - - ITypeRegistrar RegisterForAll(IEnumerable implementations); - - ITypeRegistrar RegisterForAll(params Type[] implementations); - } -} diff --git a/src/ServiceConnect.Interfaces/Envelope.cs b/src/ServiceConnect.Interfaces/Envelope.cs deleted file mode 100644 index 02eadf67a..000000000 --- a/src/ServiceConnect.Interfaces/Envelope.cs +++ /dev/null @@ -1,10 +0,0 @@ -using System.Collections.Generic; - -namespace ServiceConnect.Interfaces -{ - public class Envelope - { - public IDictionary Headers { get; set; } - public byte[] Body { get; set; } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Interfaces/Exceptions/ConcurrencyException.cs b/src/ServiceConnect.Interfaces/Exceptions/ConcurrencyException.cs new file mode 100644 index 000000000..853db5436 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Exceptions/ConcurrencyException.cs @@ -0,0 +1,27 @@ +namespace ServiceConnect.Interfaces.Exceptions; + +/// +/// Thrown by a persistence implementation when an optimistic-concurrency update fails +/// because another writer modified the same aggregate between read and write. +/// Callers should typically retry the full read-modify-write cycle on a new snapshot. +/// +public sealed class ConcurrencyException : ServiceConnectException +{ + /// + /// Initializes a new instance of the class. + /// + public ConcurrencyException() { } + + /// + /// Initializes a new instance of the class. + /// + /// The exception message. + public ConcurrencyException(string message) : base(message) { } + + /// + /// Initializes a new instance of the class. + /// + /// The exception message. + /// The underlying cause of the exception. + public ConcurrencyException(string message, Exception? innerException) : base(message, innerException) { } +} diff --git a/src/ServiceConnect.Interfaces/Exceptions/OutgoingFiltersBlockedException.cs b/src/ServiceConnect.Interfaces/Exceptions/OutgoingFiltersBlockedException.cs new file mode 100644 index 000000000..6ef02eb5a --- /dev/null +++ b/src/ServiceConnect.Interfaces/Exceptions/OutgoingFiltersBlockedException.cs @@ -0,0 +1,34 @@ +namespace ServiceConnect.Interfaces.Exceptions; + +/// +/// Thrown by an outgoing send path — , , +/// , , , +/// , or — when an outgoing +/// filter returned , blocking the message before it reached the transport. +/// Distinct from a raw (which would conflate filter-stop with +/// state-misuse) and from (which signals caller cancellation, not +/// deliberate filter rejection). +/// +/// +/// Every outgoing send path throws this when an outgoing filter returns , +/// so a filter-blocked send surfaces as a typed exception rather than a silent drop. A custom filter can +/// additionally log or emit a counter on its return path. +/// +public sealed class OutgoingFiltersBlockedException : ServiceConnectException +{ + /// + /// Initializes a new instance of the class. + /// + public OutgoingFiltersBlockedException() { } + + /// + /// Initializes a new instance with a human-readable message. + /// + public OutgoingFiltersBlockedException(string message) : base(message) { } + + /// + /// Initializes a new instance with a human-readable message and inner exception. + /// + public OutgoingFiltersBlockedException(string message, Exception? innerException) + : base(message, innerException) { } +} diff --git a/src/ServiceConnect.Interfaces/Exceptions/PersistenceException.cs b/src/ServiceConnect.Interfaces/Exceptions/PersistenceException.cs new file mode 100644 index 000000000..e0239dcd2 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Exceptions/PersistenceException.cs @@ -0,0 +1,25 @@ +namespace ServiceConnect.Interfaces.Exceptions; + +/// +/// Represents a persistence-layer failure raised by a ServiceConnect storage provider. +/// +public sealed class PersistenceException : ServiceConnectException +{ + /// + /// Initializes a new instance of the class. + /// + public PersistenceException() { } + + /// + /// Initializes a new instance of the class. + /// + /// The exception message. + public PersistenceException(string message) : base(message) { } + + /// + /// Initializes a new instance of the class. + /// + /// The exception message. + /// The underlying provider exception, if any. + public PersistenceException(string message, Exception? innerException) : base(message, innerException) { } +} diff --git a/src/ServiceConnect.Interfaces/Exceptions/RequestSendCancelledException.cs b/src/ServiceConnect.Interfaces/Exceptions/RequestSendCancelledException.cs new file mode 100644 index 000000000..c5a2d4678 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Exceptions/RequestSendCancelledException.cs @@ -0,0 +1,42 @@ +namespace ServiceConnect.Interfaces.Exceptions; + +/// +/// Thrown by , +/// , and +/// when the +/// outbound send was cancelled before delivery — distinct from the caller's own +/// cancellation token firing (which surfaces as a plain ) +/// and from a request timeout (which surfaces as ). +/// Inherits from so existing +/// catch (OperationCanceledException) handlers continue to catch it; callers can +/// catch this type specifically to react to send-layer failures. +/// +public sealed class RequestSendCancelledException : OperationCanceledException +{ + /// + /// Initializes a new instance carrying the request id and the cancellation token that fired. + /// + public RequestSendCancelledException(Guid messageId, string message, CancellationToken cancellationToken = default) + : base(message, cancellationToken) + { + MessageId = messageId; + } + + /// + /// Initializes a new instance carrying the request id, the underlying transport / pipeline + /// failure that caused the cancellation, and the cancellation token that fired. Use this + /// overload when the send-layer surfaces a real root cause (broker unreachable, channel + /// closed, filter pipeline rejected) so callers see the diagnostic chain rather than just + /// the cancellation symptom. + /// + public RequestSendCancelledException(Guid messageId, string message, Exception? innerException, CancellationToken cancellationToken = default) + : base(message, innerException, cancellationToken) + { + MessageId = messageId; + } + + /// + /// Gets the request id of the send that was cancelled. + /// + public Guid MessageId { get; } +} diff --git a/src/ServiceConnect.Interfaces/Exceptions/RequestTimeoutException.cs b/src/ServiceConnect.Interfaces/Exceptions/RequestTimeoutException.cs new file mode 100644 index 000000000..0076b666a --- /dev/null +++ b/src/ServiceConnect.Interfaces/Exceptions/RequestTimeoutException.cs @@ -0,0 +1,71 @@ +using System.Diagnostics.CodeAnalysis; + +namespace ServiceConnect.Interfaces.Exceptions; + +/// +/// Represents a request/reply operation that exceeded its timeout. +/// +/// +/// When raised by SendRequestMultiAsync with a positive +/// RequestOptions.ExpectedReplyCount, exposes the +/// replies received before the timeout fired. When raised by other paths +/// (SendRequestAsync, PublishRequestAsync), +/// is an empty list. +/// +// IDE0290 (prefer primary constructor): two ctor overloads are required — the 2-arg +// shape is the binary-compatible default for callers that don't carry partials, and the +// 3-arg shape carries SendRequestMultiAsync's partial replies. A primary ctor cannot +// express the chained-this default while keeping the 2-arg shape callable. +[SuppressMessage("Style", "IDE0290:Use primary constructor", Justification = "Two ctor overloads required for binary-compat 2-arg shape and partial-replies 3-arg shape.")] +public sealed class RequestTimeoutException : ServiceConnectException +{ + /// + /// Initialises the exception with no partial replies. Used by SendRequestAsync + /// and PublishRequestAsync, neither of which carries a buffered reply set. + /// + /// The correlation id of the timed-out request. + /// The time spent waiting for replies. + public RequestTimeoutException(Guid correlationId, TimeSpan elapsed) + : this(correlationId, elapsed, partialReplies: []) + { + } + + /// + /// Initialises the exception with the partial replies the caller's request received + /// before the timeout fired. Used by SendRequestMultiAsync on under-delivery. + /// + /// The correlation id of the timed-out request. + /// The time spent waiting for replies. + /// + /// The replies that arrived before the timeout fired. May be empty. + /// is treated as an empty list rather than throwing — the exception is a pure data + /// carrier and the caller is already on a failure path. + /// + public RequestTimeoutException(Guid correlationId, TimeSpan elapsed, IReadOnlyList partialReplies) + : base(System.FormattableString.Invariant( + $"Request {correlationId} timed out after {elapsed.TotalMilliseconds}ms")) + { + CorrelationId = correlationId; + Elapsed = elapsed; + PartialReplies = partialReplies ?? []; + } + + /// + /// Gets the correlation id of the timed-out request. + /// + public Guid CorrelationId { get; } + + /// + /// Gets the elapsed waiting time. + /// + public TimeSpan Elapsed { get; } + + /// + /// Gets the replies received before the timeout fired. Empty for paths that don't + /// surface partials (e.g., single-reply SendRequestAsync, + /// PublishRequestAsync). Populated by SendRequestMultiAsync when the + /// caller specified a positive ExpectedReplyCount and fewer replies arrived + /// before the timeout. + /// + public IReadOnlyList PartialReplies { get; } +} diff --git a/src/ServiceConnect.Interfaces/Exceptions/SerializationException.cs b/src/ServiceConnect.Interfaces/Exceptions/SerializationException.cs new file mode 100644 index 000000000..d519ce6ce --- /dev/null +++ b/src/ServiceConnect.Interfaces/Exceptions/SerializationException.cs @@ -0,0 +1,42 @@ +namespace ServiceConnect.Interfaces.Exceptions; + +/// +/// Represents a failure to serialize or deserialize a message payload. +/// +public sealed class SerializationException : ServiceConnectException +{ + /// + /// Initializes a new instance of the class. + /// + public SerializationException() { } + + /// + /// Initializes a new instance of the class. + /// + /// The exception message. + public SerializationException(string message) : base(message) { } + + /// + /// Initializes a new instance of the class. + /// + /// The exception message. + /// The underlying serializer exception, if any. + public SerializationException(string message, Exception? innerException) : base(message, innerException) { } + + /// + /// Initializes a new instance of the class. + /// + /// The exception message. + /// The message type involved in the failure, if known. + /// The underlying serializer exception, if any. + public SerializationException(string message, Type? messageType, Exception? innerException = null) + : base(message, innerException) + { + MessageType = messageType; + } + + /// + /// Gets the message type involved in the serialization failure, when available. + /// + public Type? MessageType { get; } +} diff --git a/src/ServiceConnect.Interfaces/Exceptions/ServiceConnectException.cs b/src/ServiceConnect.Interfaces/Exceptions/ServiceConnectException.cs new file mode 100644 index 000000000..7cbe5c3b7 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Exceptions/ServiceConnectException.cs @@ -0,0 +1,25 @@ +namespace ServiceConnect.Interfaces.Exceptions; + +/// +/// Base type for exceptions raised by ServiceConnect. +/// +public abstract class ServiceConnectException : Exception +{ + /// + /// Initializes a new instance of the class. + /// + protected ServiceConnectException() { } + + /// + /// Initializes a new instance of the class. + /// + /// The exception message. + protected ServiceConnectException(string message) : base(message) { } + + /// + /// Initializes a new instance of the class. + /// + /// The exception message. + /// The underlying cause of the exception. + protected ServiceConnectException(string message, Exception? innerException) : base(message, innerException) { } +} diff --git a/src/ServiceConnect.Interfaces/Exceptions/TransportException.cs b/src/ServiceConnect.Interfaces/Exceptions/TransportException.cs new file mode 100644 index 000000000..50c0a69f3 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Exceptions/TransportException.cs @@ -0,0 +1,42 @@ +namespace ServiceConnect.Interfaces.Exceptions; + +/// +/// Represents a transport-layer failure when sending, publishing, or consuming messages. +/// +public sealed class TransportException : ServiceConnectException +{ + /// + /// Initializes a new instance of the class. + /// + public TransportException() { } + + /// + /// Initializes a new instance of the class. + /// + /// The exception message. + public TransportException(string message) : base(message) { } + + /// + /// Initializes a new instance of the class. + /// + /// The exception message. + /// The underlying transport exception, if any. + public TransportException(string message, Exception? innerException) : base(message, innerException) { } + + /// + /// Initializes a new instance of the class. + /// + /// The exception message. + /// The affected endpoint, if known. + /// The underlying transport exception, if any. + public TransportException(string message, string? endpoint, Exception? innerException = null) + : base(message, innerException) + { + Endpoint = endpoint; + } + + /// + /// Gets the endpoint involved in the transport failure, if known. + /// + public string? Endpoint { get; } +} diff --git a/src/ServiceConnect.Interfaces/HandlerReference.cs b/src/ServiceConnect.Interfaces/HandlerReference.cs deleted file mode 100644 index 7066a7e7d..000000000 --- a/src/ServiceConnect.Interfaces/HandlerReference.cs +++ /dev/null @@ -1,28 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; - -namespace ServiceConnect.Interfaces -{ - public class HandlerReference - { - public Type MessageType { get; set; } - public Type HandlerType { get; set; } - public IList RoutingKeys { get; set; } - } -} diff --git a/src/ServiceConnect.Interfaces/Handlers/HandlerInterfaceKind.cs b/src/ServiceConnect.Interfaces/Handlers/HandlerInterfaceKind.cs new file mode 100644 index 000000000..4fea77a32 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Handlers/HandlerInterfaceKind.cs @@ -0,0 +1,28 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Discriminates which handler interface a was produced for. +/// A single class that implements multiple handler interfaces produces one reference per interface. +/// +public enum HandlerInterfaceKind +{ + /// + /// The handler implements . + /// + MessageHandler, + + /// + /// The handler implements . + /// + ProcessHandler, + + /// + /// The handler implements . + /// + StreamHandler, + + /// + /// The handler extends . + /// + Aggregator, +} diff --git a/src/ServiceConnect.Interfaces/Handlers/HandlerReference.cs b/src/ServiceConnect.Interfaces/Handlers/HandlerReference.cs new file mode 100644 index 000000000..775cbdeb1 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Handlers/HandlerReference.cs @@ -0,0 +1,26 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Describes the message type handled by a registered handler type, and which handler +/// interface the reference was produced for. +/// +public sealed class HandlerReference +{ + /// + /// Gets the message type handled by the registration. + /// + public required Type MessageType { get; init; } + + /// + /// Gets the concrete handler type. + /// + public required Type HandlerType { get; init; } + + /// + /// Gets the handler interface kind this reference was produced for. + /// A class that implements both and + /// for the same message type produces + /// two separate references, one per kind. + /// + public HandlerInterfaceKind InterfaceKind { get; init; } = HandlerInterfaceKind.MessageHandler; +} diff --git a/src/ServiceConnect.Interfaces/Handlers/IHandlerRegistry.cs b/src/ServiceConnect.Interfaces/Handlers/IHandlerRegistry.cs new file mode 100644 index 000000000..db137696f --- /dev/null +++ b/src/ServiceConnect.Interfaces/Handlers/IHandlerRegistry.cs @@ -0,0 +1,9 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Marker interface for internal handler registries that need eager initialization. +/// Implementations are resolved during startup to trigger validation of handler configurations. +/// +public interface IHandlerRegistry +{ +} diff --git a/src/ServiceConnect.Interfaces/Handlers/IMessageHandler.cs b/src/ServiceConnect.Interfaces/Handlers/IMessageHandler.cs new file mode 100644 index 000000000..4e2617c6b --- /dev/null +++ b/src/ServiceConnect.Interfaces/Handlers/IMessageHandler.cs @@ -0,0 +1,24 @@ +using System.Threading; + +namespace ServiceConnect.Interfaces; + +/// +/// Implemented by classes that handle a specific message type. Multiple implementations +/// of for the same message type may be registered +/// and will all be invoked in turn. +/// +/// The message contract handled by this implementation. +public interface IMessageHandler where TMessage : Message +{ + /// + /// Invoked with the deserialized message and the per-message consume context + /// (bus handle, correlation id, reply helper). The + /// is sourced from the transport consume context and signals cooperative shutdown. + /// + /// + /// The consume context is passed as a method parameter rather than a property so that a + /// singleton-registered handler dispatched concurrently for two messages does not have + /// one invocation's context overwritten by the other. + /// + Task HandleAsync(TMessage message, IConsumeContext context, CancellationToken cancellationToken = default); +} diff --git a/src/ServiceConnect.Interfaces/Handlers/IMessageProcessor.cs b/src/ServiceConnect.Interfaces/Handlers/IMessageProcessor.cs new file mode 100644 index 000000000..236085345 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Handlers/IMessageProcessor.cs @@ -0,0 +1,35 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Processes incoming messages before they are dispatched to handlers. +/// +public interface IMessageProcessor +{ + /// + /// When true, this processor can run before the message body is deserialized + /// (the message parameter will be null). Pre-deserialization processors still run + /// inside the before/after consuming filter gate, but they are intentionally not + /// wrapped by — that middleware's delegate + /// signature requires a non-null object message, which pre-deserialization + /// processors by definition do not yet have. + /// + bool RunBeforeDeserialization => false; + + /// + /// Processes an incoming message envelope. + /// + /// The raw message payload. + /// The resolved CLR message type. + /// The deserialized message instance, or for pre-deserialization processors. + /// The message headers. + /// The message envelope. + /// A token that cancels processing. + /// The processor result. + Task ProcessAsync( + ReadOnlyMemory messageBytes, + Type messageType, + object? message, + IDictionary headers, + Envelope envelope, + CancellationToken cancellationToken = default); +} diff --git a/src/ServiceConnect.Interfaces/Handlers/IStreamHandler.cs b/src/ServiceConnect.Interfaces/Handlers/IStreamHandler.cs new file mode 100644 index 000000000..b2fae52de --- /dev/null +++ b/src/ServiceConnect.Interfaces/Handlers/IStreamHandler.cs @@ -0,0 +1,19 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Handler for byte-stream messages: large payloads are delivered as a sequence of +/// packets reassembled into , and is called +/// once the complete stream has arrived. +/// +/// Message contract associated with the stream. +public interface IStreamHandler where TMessage : Message +{ + /// + /// Invoked once the full stream has been received and reassembled. Reads the + /// assembled payload bytes from . + /// + /// The control message that initiated the stream. + /// The reassembled byte stream. + /// Token to observe for cancellation. + Task ExecuteAsync(TMessage message, IMessageBusReadStream stream, CancellationToken cancellationToken = default); +} diff --git a/src/ServiceConnect.Interfaces/Handlers/ProcessResult.cs b/src/ServiceConnect.Interfaces/Handlers/ProcessResult.cs new file mode 100644 index 000000000..09b34a023 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Handlers/ProcessResult.cs @@ -0,0 +1,17 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Describes the outcome of a message processor invocation. +/// +public enum ProcessResult +{ + /// + /// The processor handled the message and processing should stop. + /// + Handled, + + /// + /// The processor did not handle the message and processing may continue. + /// + NotHandled +} diff --git a/src/ServiceConnect.Interfaces/Headers/HeaderDecoder.cs b/src/ServiceConnect.Interfaces/Headers/HeaderDecoder.cs new file mode 100644 index 000000000..8913eb0e1 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Headers/HeaderDecoder.cs @@ -0,0 +1,186 @@ +using System.Collections; +using System.Collections.Generic; +using System.Globalization; +using System.Runtime.CompilerServices; +using System.Text; + +namespace ServiceConnect.Interfaces; + +/// +/// Converts transport header values into their string representation. +/// +public static class HeaderDecoder +{ + /// + /// Decodes a header value to its string representation. Handles the two canonical + /// wire shapes (UTF-8 [] from RabbitMQ clients; + /// from in-process paths). Nested and + /// values (such as AMQP x-table headers) are rendered as + /// JSON-shaped strings so every nested value is preserved. Falls back to the type's + /// FullName if rendering throws, which prevents a bad header from taking down the + /// consumer host via an infinite nack-requeue cycle. + /// + /// + /// String-input identity contract. When is already + /// a , this method returns the same instance unchanged + /// (no copy, no normalization). The consumer-side eager-decode optimisation in + /// RabbitMqConsumerHost.CopyInboundHeaders and + /// InboundMessageProcessor.ProcessAsync relies on this: by storing the + /// UTF-8-decoded string back into the headers dictionary on copy, every subsequent + /// call short-circuits to the same string instance instead of + /// re-running .GetString on each read. + /// Future changes that wrap the string fast-path (e.g. , + /// case normalisation) would break that optimisation and the regression test at + /// InboundHeaderDecodeCachingTests.HeaderDecoder_Decode_ReturnsCachedString.... + /// + /// The raw header value. + /// The decoded string, or when the value is . + [MethodImpl(MethodImplOptions.AggressiveInlining)] + public static string? Decode(object? value) + { + if (value is null) + { + return null; + } + + if (value is byte[] bytes) + { + return Encoding.UTF8.GetString(bytes); + } + + if (value is string str) + { + return str; + } + + try + { + return Render(value); + } + catch + { + // Defensive fallback: a custom IEnumerable that throws on iteration must not + // bring the trace pipeline down. Type name is enough to identify the slot. + return value.GetType().FullName; + } + } + + private const int MaxDepth = 32; + + private static string Render(object value, int depth = 0) + { + // Guard against pathologically nested input (e.g. crafted AMQP x-table + // headers). Without the limit a 1000-level chain would StackOverflow the + // consumer thread; with it Decode's catch produces a graceful type-name + // fallback instead. + if (depth > MaxDepth) + { + throw new InvalidOperationException( + $"Header value exceeds nesting depth {MaxDepth}."); + } + + return value switch + { + null => "null", + byte[] bytes => "\"" + EscapeJsonString(Encoding.UTF8.GetString(bytes)) + "\"", + string s => "\"" + EscapeJsonString(s) + "\"", + IDictionary dict => RenderDictionary(dict, depth + 1), + IDictionary nonGeneric => RenderNonGenericDictionary(nonGeneric, depth + 1), + IEnumerable seq => RenderEnumerable(seq, depth + 1), + _ => RenderScalar(value), + }; + } + + private static string RenderDictionary(IDictionary dict, int depth) + { + var sb = new StringBuilder("{"); + bool first = true; + foreach (var kv in dict) + { + if (!first) + { + sb.Append(','); + } + + first = false; + sb.Append('"').Append(EscapeJsonString(kv.Key)).Append("\":").Append(Render(kv.Value, depth)); + } + return sb.Append('}').ToString(); + } + + private static string RenderNonGenericDictionary(IDictionary dict, int depth) + { + var sb = new StringBuilder("{"); + bool first = true; + foreach (DictionaryEntry kv in dict) + { + if (!first) + { + sb.Append(','); + } + + first = false; + var keyStr = kv.Key?.ToString() ?? "null"; + sb.Append('"').Append(EscapeJsonString(keyStr)).Append("\":").Append(Render(kv.Value!, depth)); + } + return sb.Append('}').ToString(); + } + + private static string RenderEnumerable(IEnumerable seq, int depth) + { + var sb = new StringBuilder("["); + bool first = true; + foreach (var item in seq) + { + if (!first) + { + sb.Append(','); + } + + first = false; + sb.Append(Render(item!, depth)); + } + return sb.Append(']').ToString(); + } + + private static string EscapeJsonString(string s) + { + // Full RFC 8259 escape table. Escaping only " is insufficient — raw control + // characters inside a JSON string literal cause parse failures downstream. + var sb = new StringBuilder(s.Length + 2); + foreach (var c in s) + { + switch (c) + { + case '\\': sb.Append("\\\\"); break; + case '"': sb.Append("\\\""); break; + case '\b': sb.Append("\\b"); break; + case '\f': sb.Append("\\f"); break; + case '\n': sb.Append("\\n"); break; + case '\r': sb.Append("\\r"); break; + case '\t': sb.Append("\\t"); break; + default: + if (c < 0x20) + { + sb.Append("\\u").Append(((int)c).ToString("x4", CultureInfo.InvariantCulture)); + } + else + { + sb.Append(c); + } + break; + } + } + return sb.ToString(); + } + + private static string RenderScalar(object value) + { + return value switch + { + bool b => b ? "true" : "false", + IFormattable f => f.ToString(null, CultureInfo.InvariantCulture), + _ => value.ToString() ?? "null", + }; + } +} diff --git a/src/ServiceConnect.Interfaces/Headers/HeaderKeys.cs b/src/ServiceConnect.Interfaces/Headers/HeaderKeys.cs new file mode 100644 index 000000000..d3251455a --- /dev/null +++ b/src/ServiceConnect.Interfaces/Headers/HeaderKeys.cs @@ -0,0 +1,70 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Standard header names used by ServiceConnect transports and pipelines. +/// +public static class HeaderKeys +{ + /// Header containing the logical message type identifier. + public const string MessageType = "MessageType"; + /// Header containing the full CLR type name. + public const string FullTypeName = "FullTypeName"; + /// Header containing the short CLR type name. + public const string TypeName = "TypeName"; + /// Header containing the routing key used for publish operations. + public const string RoutingKey = "RoutingKey"; + /// Header containing the original source queue or endpoint. + public const string SourceAddress = "SourceAddress"; + /// Header containing the request message id for request/reply flows. + public const string RequestMessageId = "RequestMessageId"; + /// Header containing the response message id for request/reply flows. + public const string ResponseMessageId = "ResponseMessageId"; + /// Header containing the conversation correlation id. + public const string CorrelationId = "CorrelationId"; + /// Header containing the unique message id. + public const string MessageId = "MessageId"; + /// Header indicating whether the broker marked the delivery as redelivered. + public const string Redelivered = "Redelivered"; + /// Header containing the destination queue or endpoint. + public const string DestinationAddress = "DestinationAddress"; + /// Header indicating that a message was published rather than directly sent. + public const string Publish = "Publish"; + /// Header containing the serialized routing slip. + public const string RoutingSlip = "RoutingSlip"; + /// + /// Header counting the number of routing-slip hops a message has completed. + /// Incremented authoritatively by the forwarder on each RouteAsync hop; + /// compared against BusConfiguration.MaxRoutingSlipHops on inbound to defend + /// against cross-service amplification (service A → [B,C,…32 entries] → service B, + /// each receiver could otherwise publish a fresh full-cap slip indefinitely). + /// + public const string RoutingSlipHopsCompleted = "RoutingSlipHopsCompleted"; + /// Header containing the byte-stream sequence identifier. + public const string SequenceId = "SequenceId"; + /// Header containing the current packet number in a stream. + public const string PacketNumber = "PacketNumber"; + /// Header containing the final packet number in a stream. + public const string LastPacketNumber = "LastPacketNumber"; + /// Header indicating that a message belongs to a byte stream. + public const string ByteStream = "ByteStream"; + /// Header containing the time a message was sent. + public const string TimeSent = "TimeSent"; + /// Header containing the time a message was received. + public const string TimeReceived = "TimeReceived"; + /// Header containing the time a message finished processing. + public const string TimeProcessed = "TimeProcessed"; + /// Header containing the sender machine name. + public const string SourceMachine = "SourceMachine"; + /// Header containing the consumer machine name. + public const string DestinationMachine = "DestinationMachine"; + /// Header containing the consuming handler or consumer type. + public const string ConsumerType = "ConsumerType"; + /// Header containing the sender language identifier. + public const string Language = "Language"; + /// Header containing the current retry count. + public const string RetryCount = "RetryCount"; + /// Header containing exception details for failed message processing. + public const string Exception = "Exception"; + /// Header containing message priority metadata. + public const string Priority = "Priority"; +} diff --git a/src/ServiceConnect.Interfaces/IAggregatorPersistor.cs b/src/ServiceConnect.Interfaces/IAggregatorPersistor.cs deleted file mode 100644 index bd1b7135f..000000000 --- a/src/ServiceConnect.Interfaces/IAggregatorPersistor.cs +++ /dev/null @@ -1,29 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; - -namespace ServiceConnect.Interfaces -{ - public interface IAggregatorPersistor - { - void InsertData(object data, string name); - IList GetData(string name); - void RemoveData(string name, Guid correlationsId); - int Count(string name); - } -} diff --git a/src/ServiceConnect.Interfaces/IAggregatorProcessor.cs b/src/ServiceConnect.Interfaces/IAggregatorProcessor.cs deleted file mode 100644 index d7116cae1..000000000 --- a/src/ServiceConnect.Interfaces/IAggregatorProcessor.cs +++ /dev/null @@ -1,31 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; - -namespace ServiceConnect.Interfaces -{ - /// - /// Aggregate messages into batches of a predefined size - /// and pass them to relevant handlers - /// - public interface IAggregatorProcessor : IDisposable - { - void ProcessMessage(string message) where T : Message; - void StartTimer(TimeSpan timeout); - void ResetTimer(); - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Interfaces/IAsyncMessageHandler.cs b/src/ServiceConnect.Interfaces/IAsyncMessageHandler.cs deleted file mode 100644 index b36bf2176..000000000 --- a/src/ServiceConnect.Interfaces/IAsyncMessageHandler.cs +++ /dev/null @@ -1,26 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System.Threading.Tasks; - -namespace ServiceConnect.Interfaces -{ - public interface IAsyncMessageHandler where TMessage : Message - { - IConsumeContext Context { get; set; } - Task Execute(TMessage message); - } -} diff --git a/src/ServiceConnect.Interfaces/IBus.cs b/src/ServiceConnect.Interfaces/IBus.cs deleted file mode 100644 index 572234049..000000000 --- a/src/ServiceConnect.Interfaces/IBus.cs +++ /dev/null @@ -1,185 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; - -namespace ServiceConnect.Interfaces -{ - public interface IBus : IDisposable - { - /// - /// Contains the Bus configuration. - /// - IConfiguration Configuration { get; set; } - - /// - /// Sets up the Bus to start consuming messages on the given queue. - /// - void StartConsuming(); - - /// - /// Stop consuming messages. - /// - void StopConsuming(); - - /// - /// Publish message. - /// - /// - /// - /// Custom headers - void Publish(T message, Dictionary headers = null) where T : Message; - - /// - /// Publish message with a routing key. - /// - /// - /// - /// - /// Custom headers - void Publish(T message, string routingKey, Dictionary headers = null) where T : Message; - - /// - /// Publishes an event and wait for replies. - /// - /// The type of the request object. Must be a message - /// The type of the reply object. Must be a message - /// The message to send - /// Expected number of replies. If -1 then the request will only return once the timeout has occurred - /// Custom headers - /// - /// Returns a list of response objects - IList PublishRequest(TRequest message, int? expectedCount = null, Dictionary headers = null, int timeout = 10000) where TRequest : Message; - - /// - /// Sends a command. - /// - /// - /// - /// Custom headers - void Send(T message, Dictionary headers = null) where T : Message; - - /// - /// Send a command to the specified endpoint. - /// - /// - /// - /// - /// Custom headers - void Send(string endPoint, T message, Dictionary headers = null) where T : Message; - - /// - ///Send a command to the specified endpoints. - /// - /// - /// - /// - /// Custom headers - void Send(IList endPoints, T message, Dictionary headers = null) where T : Message; - - /// - /// Sends a command and waits for a reply. The method behaves like a regular blocking RPC method. - /// - /// The type of the request object. Must be a message. - /// The type of the reply object. Must be a message. - /// The message to send. - /// - /// Custom headers - /// Returns the response object. - TReply SendRequest(TRequest message, Dictionary headers = null, int timeout = 3000) where TRequest : Message where TReply : Message; - - /// - /// Sends a command to the specified endpoint and waits for a reply. The method behaves like a regular blocking RPC method. - /// - /// The type of the request object. Must be a message. - /// The type of the reply object. Must be a message. - /// The endpoint the message will be sent to. - /// The message to send. - /// - /// Custom headers - /// Returns the response object. - TReply SendRequest(string endPoint, TRequest message, Dictionary headers = null, int timeout = 3000) where TRequest : Message where TReply : Message; - - /// - /// Send a command to the specified endpoints and waits for all endpoints to reply. If all the endpoints dont respond in before the timeout then responses received are returned. - /// - /// The type of the request object. Must be a message. - /// The type of the reply object. Must be a message. - /// The endpoints the message will be sent to. - /// The message to send. - /// - /// Custom headers - /// Returns the response objects. - IList SendRequest(IList endPoints, TRequest message, Dictionary headers = null, int timeout = 10000) where TRequest : Message where TReply : Message; - - /// - /// Sends a commands to the specified endpoint. The callback is called when receving the reply message. - /// - /// The type of the request object. Must be a message. - /// The type of the reply object. Must be a message. - /// The endpoint the message will be sent to. - /// The message to send. - /// The callback that will receive the response message. - /// Custom headers - void SendRequest(string endPoint, TRequest message, Action callback, Dictionary headers = null) where TRequest : Message where TReply : Message; - - /// - /// Sends a command. The callback is called when receving the reply message. - /// - /// The type of the request object. Must be a message. - /// The type of the reply object. Must be a message. - /// The message to send. - /// The callback that will receive the response message. - /// Custom headers - void SendRequest(TRequest message, Action callback, Dictionary headers = null) where TRequest : Message where TReply : Message; - - /// - /// Sends a commands to the specified endpoint. The callback is called when receving the reply message. - /// - /// The type of the request object. Must be a message. - /// The type of the reply object. Must be a message. - /// The endpoints the message will be sent to. - /// The message to send. - /// The callback that will receive the response messages. - /// Custom headers - void SendRequest(IList endPoints, TRequest message, Action> callback, Dictionary headers = null) where TRequest : Message where TReply : Message; - - /// - /// Implementation of Routing Slip pattern. - /// (Sequentially) sends the to all the endpoints specified in - /// - /// The type of the message - /// The message to send. - /// Endpoints that the message is routed to - void Route(T message, IList destinations) where T : Message; - - /// - /// Creates a new stream object, which can be used to transfer large amounds of data. Method call will establish a connection with the remote endpoint before returning. - /// - /// Message Type - /// Endpoint that consume the stream - /// The start message to send - /// Stream for writing data - IMessageBusWriteStream CreateStream(string endpoint, T message) where T : Message; - - /// - /// Returns true if current connection can be used. - /// - /// True/False. If False, connection is closed. - bool IsConnected(); - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Interfaces/IBusContainer.cs b/src/ServiceConnect.Interfaces/IBusContainer.cs deleted file mode 100644 index cdcd0cdc1..000000000 --- a/src/ServiceConnect.Interfaces/IBusContainer.cs +++ /dev/null @@ -1,36 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; - -namespace ServiceConnect.Interfaces -{ - public interface IBusContainer - { - IEnumerable GetHandlerTypes(); - IEnumerable GetHandlerTypes(params Type[] messageHandler); - object GetInstance(Type handlerType); - T GetInstance(IDictionary arguments); - T GetInstance(); - void ScanForHandlers(); - void Initialize(); - void Initialize(object container); - void AddHandler(Type handlerType, T handler); - void AddBus(IBus bus); - object GetContainer(); - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Interfaces/IBusState.cs b/src/ServiceConnect.Interfaces/IBusState.cs deleted file mode 100644 index 1ff6753cb..000000000 --- a/src/ServiceConnect.Interfaces/IBusState.cs +++ /dev/null @@ -1,14 +0,0 @@ -using System; -using System.Collections.Generic; - -namespace ServiceConnect.Interfaces -{ - public interface IBusState - { - IDictionary AggregatorProcessors { get; set; } - object ByteStreamLock { get; set; } - IDictionary ByteStreams { get; set; } - IDictionary RequestConfigurations { get; set; } - object RequestLock { get; set; } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Interfaces/IConfiguration.cs b/src/ServiceConnect.Interfaces/IConfiguration.cs deleted file mode 100644 index a96f18c5b..000000000 --- a/src/ServiceConnect.Interfaces/IConfiguration.cs +++ /dev/null @@ -1,242 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; - -namespace ServiceConnect.Interfaces -{ - public interface IConfiguration - { - Type ConsumerType { get; set; } - Type ProducerType { get; set; } - Type ProcessManagerFinder { get; set; } - Type AggregatorPersistor { get; set; } - Type MessageBusReadStream { get; set; } - Type MessageBusWriteStream { get; set; } - Type AggregatorProcessor { get; set; } - bool ScanForMesssageHandlers { get; set; } - bool AutoStartConsuming { get; set; } - string PersistenceStoreConnectionString { get; set; } - string PersistenceStoreDatabaseName { get; set; } - string PersistenceStoreAggregatorCollectionName { get; set; } - ITransportSettings TransportSettings { get; set; } - IDictionary> QueueMappings { get; set; } - Action ExceptionHandler { get; set; } - bool AddBusToContainer { get; set; } - IList BeforeConsumingFilters { get; set; } - IList AfterConsumingFilters { get; set; } - IList OutgoingFilters { get; set; } - IList MessageProcessingMiddleware { get; set; } - IList SendMessageMiddleware { get; set; } - bool EnableProcessManagerTimeouts { get; set; } - - IProcessMessagePipeline GetProcessMessagePipeline(IBusState busState); - ISendMessagePipeline GetSendMessagePipeline(); - - int Clients { get; set; } - - /// - /// Adds message processing middleware. - /// - void AddMessageProcessingMiddleware() where T : IProcessMessageMiddleware; - - - /// - /// Adds send message middleware. - /// - void AddSendMessageMiddleware() where T : ISendMessageMiddleware; - - /// - /// Adds a message queue mapping. - /// - /// Type of message - /// Queue to send the message to - void AddQueueMapping(Type messageType, string queue); - - /// - /// Adds message queue mappings. - /// - /// Type of message - /// Queues to send the message to - void AddQueueMapping(Type messageType, IList queues); - - /// - /// Set Exception handler. Exception handler is called when an exception is thrown while processing a message. - /// - /// - void SetExceptionHandler(Action exceptionHandler); - - /// - /// Sets the client host server - /// - /// Server connection string - void SetHost(string host); - - /// - /// Sets the container. - /// - /// The type must be a class that implements IBusContainer. - void SetContainerType() where T : class, IBusContainer; - - /// - /// Sets the process manager finder - /// - /// The type must be a class that implements IProcessManagerFinder - void SetProcessManagerFinder() where T : class, IProcessManagerFinder; - - /// - /// Set the aggregator persisitor - /// - /// - void SetAggregatorPersistor() where T : class, IAggregatorPersistor; - - /// - /// Sets the consumer type. - /// - /// The type must be a class that implements IConsumer. - void SetConsumer() where T : class, IConsumer; - - /// - /// Sets the publisher type. - /// - /// The type must be a class that implements IPublisher. - void SetProducer() where T : class, IProducer; - - /// - /// Sets QueueName - /// - void SetQueueName(string queueName); - - /// - /// Sets ErrorQueueName - /// - void SetErrorQueueName(string errorQueueName); - - /// - /// Sets AuditingEnabled - /// - void SetAuditingEnabled(bool auditingEnabled); - - /// - /// Sets AuditQueueName - /// - void SetAuditQueueName(string auditQueueName); - - /// - /// Sets HeartbeatQueueName - /// - void SetHeartbeatQueueName(string heartbeatQueueName); - - /// - /// Gets queue name. - /// - /// - string GetQueueName(); - - /// - /// Gets error queue name. - /// - /// - string GetErrorQueueName(); - - /// - /// Gets audit queue name. - /// - /// - string GetAuditQueueName(); - - /// - /// Gets an instance of the publisher. - /// - /// - IProducer GetProducer(); - - /// - /// Gets an instance of the container. - /// - /// - IBusContainer GetContainer(); - - /// - /// Gets an instance of the ProcessManagerFinder - /// - /// - IProcessManagerFinder GetProcessManagerFinder(); - - /// - /// Gets an instance of the Aggregator Persistor - /// - /// - IAggregatorPersistor GetAggregatorPersistor(); - - /// - /// Gets a instance of the RequestConfiguration class. Used to configure Request Reply messaging. - /// - /// Used to ensure the request is not proccessed as a reply - /// An instance of the RequestConfiguration class. - IRequestConfiguration GetRequestConfiguration(Guid requestMessageCorrelationId); - - /// - /// Disables publishing errors to error queue - /// - /// - void SetDisableErrors(bool disable); - - /// - /// Removes all messages from the queue on startup - /// - /// - void PurgeQueuesOnStart(); - - /// - /// Gets an instance of the MessageBusReadStream - /// - /// - IMessageBusReadStream GetMessageBusReadStream(); - - /// - /// Gets an instance of the MessageBusWriteStream - /// - /// - IMessageBusWriteStream GetMessageBusWriteStream(IProducer producer, string endpoint, string sequenceId, IConfiguration configuration); - - /// - /// Gets an instance of the AggregatorProcessor - /// - /// - /// - /// - /// - IAggregatorProcessor GetAggregatorProcessor(IAggregatorPersistor aggregatorPersistor, IBusContainer container, Type handlerType); - - /// - /// Sets the number of clients to consume messages on. - /// - /// - void SetNumberOfClients(int numberOfClients); - - - /// - /// Creates a consumer to consume messages on. - /// - /// - IConsumer GetConsumer(); - - void SetLogger(ILogger logger); - ILogger GetLogger(); - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Interfaces/IConsumeContext.cs b/src/ServiceConnect.Interfaces/IConsumeContext.cs deleted file mode 100644 index e5c4666af..000000000 --- a/src/ServiceConnect.Interfaces/IConsumeContext.cs +++ /dev/null @@ -1,29 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; - -namespace ServiceConnect.Interfaces -{ - public interface IConsumeContext - { - IBus Bus { set; } - IDictionary Headers { get; set; } - void Reply(TReply message) where TReply : Message; - void Reply(TReply message, Dictionary headers) where TReply : Message; - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Interfaces/IConsumer.cs b/src/ServiceConnect.Interfaces/IConsumer.cs deleted file mode 100644 index cd72f732e..000000000 --- a/src/ServiceConnect.Interfaces/IConsumer.cs +++ /dev/null @@ -1,27 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; - -namespace ServiceConnect.Interfaces -{ - public interface IConsumer : IDisposable - { - bool IsConnected(); - void StartConsuming(string queueName, IList messageTypes, ConsumerEventHandler eventHandler, IConfiguration config); - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Interfaces/IFilter.cs b/src/ServiceConnect.Interfaces/IFilter.cs deleted file mode 100644 index 1b1b8c63f..000000000 --- a/src/ServiceConnect.Interfaces/IFilter.cs +++ /dev/null @@ -1,8 +0,0 @@ -namespace ServiceConnect.Interfaces -{ - public interface IFilter - { - IBus Bus { get; set; } - bool Process(Envelope envelope); - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Interfaces/ILogger.cs b/src/ServiceConnect.Interfaces/ILogger.cs deleted file mode 100644 index 51402fd35..000000000 --- a/src/ServiceConnect.Interfaces/ILogger.cs +++ /dev/null @@ -1,13 +0,0 @@ -using System; - -namespace ServiceConnect.Interfaces -{ - public interface ILogger - { - void Debug(string message); - void Info(string message); - void Error(string message, Exception ex = null); - void Warn(string message, Exception ex = null); - void Fatal(string message, Exception ex = null); - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Interfaces/IMessageBusReadStream.cs b/src/ServiceConnect.Interfaces/IMessageBusReadStream.cs deleted file mode 100644 index 49b70b12e..000000000 --- a/src/ServiceConnect.Interfaces/IMessageBusReadStream.cs +++ /dev/null @@ -1,33 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; - -namespace ServiceConnect.Interfaces -{ - public delegate void MessageBusStreamComplete(string sequenceId); - - public interface IMessageBusReadStream - { - void Write(byte[] data, Int64 packetNumber); - byte[] Read(); - bool IsComplete(); - Int64 LastPacketNumber { get; set; } - MessageBusStreamComplete CompleteEventHandler { get; set; } - string SequenceId { get; set; } - int HandlerCount { get; set; } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Interfaces/IMessageBusWriteStream.cs b/src/ServiceConnect.Interfaces/IMessageBusWriteStream.cs deleted file mode 100644 index 274efc3aa..000000000 --- a/src/ServiceConnect.Interfaces/IMessageBusWriteStream.cs +++ /dev/null @@ -1,26 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; - -namespace ServiceConnect.Interfaces -{ - public interface IMessageBusWriteStream : IDisposable - { - void Write(byte[] buffer, int offset, int count); - void Close(); - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Interfaces/IMessageHandler.cs b/src/ServiceConnect.Interfaces/IMessageHandler.cs deleted file mode 100644 index 4691baea4..000000000 --- a/src/ServiceConnect.Interfaces/IMessageHandler.cs +++ /dev/null @@ -1,24 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -namespace ServiceConnect.Interfaces -{ - public interface IMessageHandler where TMessage : Message - { - IConsumeContext Context { get; set; } - void Execute(TMessage message); - } -} diff --git a/src/ServiceConnect.Interfaces/IMessageHandlerProcessor.cs b/src/ServiceConnect.Interfaces/IMessageHandlerProcessor.cs deleted file mode 100644 index e6991c820..000000000 --- a/src/ServiceConnect.Interfaces/IMessageHandlerProcessor.cs +++ /dev/null @@ -1,25 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System.Threading.Tasks; - -namespace ServiceConnect.Interfaces -{ - public interface IMessageHandlerProcessor - { - Task ProcessMessage(string message, IConsumeContext context) where T : Message; - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Interfaces/IPersistanceData.cs b/src/ServiceConnect.Interfaces/IPersistanceData.cs deleted file mode 100644 index 91079a0bb..000000000 --- a/src/ServiceConnect.Interfaces/IPersistanceData.cs +++ /dev/null @@ -1,23 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -namespace ServiceConnect.Interfaces -{ - public interface IPersistanceData - { - T Data { get; set; } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Interfaces/IProcessManagerData.cs b/src/ServiceConnect.Interfaces/IProcessManagerData.cs deleted file mode 100644 index dbf4851ce..000000000 --- a/src/ServiceConnect.Interfaces/IProcessManagerData.cs +++ /dev/null @@ -1,25 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; - -namespace ServiceConnect.Interfaces -{ - public interface IProcessManagerData - { - Guid CorrelationId { get; set; } - } -} diff --git a/src/ServiceConnect.Interfaces/IProcessManagerFinder.cs b/src/ServiceConnect.Interfaces/IProcessManagerFinder.cs deleted file mode 100644 index 75ac8f09b..000000000 --- a/src/ServiceConnect.Interfaces/IProcessManagerFinder.cs +++ /dev/null @@ -1,37 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; - -namespace ServiceConnect.Interfaces -{ - public delegate void TimeoutInsertedDelegate(DateTime timeoutTime); - - public interface IProcessManagerFinder - { - event TimeoutInsertedDelegate TimeoutInserted; - - IPersistanceData FindData(IProcessManagerPropertyMapper mapper, Message message) where T : class, IProcessManagerData; - - void InsertData(IProcessManagerData data); - void UpdateData(IPersistanceData data) where T : class, IProcessManagerData; - void DeleteData(IPersistanceData data) where T : class, IProcessManagerData; - - void InsertTimeout(TimeoutData timeoutData); - TimeoutsBatch GetTimeoutsBatch(); - void RemoveDispatchedTimeout(Guid id); - } -} diff --git a/src/ServiceConnect.Interfaces/IProcessManagerProcessor.cs b/src/ServiceConnect.Interfaces/IProcessManagerProcessor.cs deleted file mode 100644 index ac7e45d30..000000000 --- a/src/ServiceConnect.Interfaces/IProcessManagerProcessor.cs +++ /dev/null @@ -1,26 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System.Collections.Generic; -using System.Threading.Tasks; - -namespace ServiceConnect.Interfaces -{ - public interface IProcessManagerProcessor - { - Task ProcessMessage(string message, IConsumeContext context) where T : Message; - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Interfaces/IProcessManagerPropertyMapper.cs b/src/ServiceConnect.Interfaces/IProcessManagerPropertyMapper.cs deleted file mode 100644 index c7bb26385..000000000 --- a/src/ServiceConnect.Interfaces/IProcessManagerPropertyMapper.cs +++ /dev/null @@ -1,28 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; -using System.Linq.Expressions; - -namespace ServiceConnect.Interfaces -{ - public interface IProcessManagerPropertyMapper - { - List Mappings { get; set; } - void ConfigureMapping(Expression> processManagerProperty, Expression> messageExpression) where TProcessManagerData : IProcessManagerData; - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Interfaces/IProcessMessageMiddleware.cs b/src/ServiceConnect.Interfaces/IProcessMessageMiddleware.cs deleted file mode 100644 index 181f0c2e7..000000000 --- a/src/ServiceConnect.Interfaces/IProcessMessageMiddleware.cs +++ /dev/null @@ -1,14 +0,0 @@ -using System; -using System.Threading.Tasks; - -namespace ServiceConnect.Interfaces -{ - public delegate Task ProcessMessageDelegate(IConsumeContext context, Type typeObject, Envelope envelope); - - public interface IProcessMessageMiddleware - { - ProcessMessageDelegate Next { get; set; } - - Task Process(IConsumeContext context, Type typeObject, Envelope envelope); - } -} diff --git a/src/ServiceConnect.Interfaces/IProcessMessagePipeline.cs b/src/ServiceConnect.Interfaces/IProcessMessagePipeline.cs deleted file mode 100644 index 01d380fb3..000000000 --- a/src/ServiceConnect.Interfaces/IProcessMessagePipeline.cs +++ /dev/null @@ -1,11 +0,0 @@ -using ServiceConnect.Interfaces; -using System; -using System.Threading.Tasks; - -namespace ServiceConnect.Interfaces -{ - public interface IProcessMessagePipeline - { - Task ExecutePipeline(IConsumeContext context, Type typeObject, Envelope envelope); - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Interfaces/IProducer.cs b/src/ServiceConnect.Interfaces/IProducer.cs deleted file mode 100644 index 824a64453..000000000 --- a/src/ServiceConnect.Interfaces/IProducer.cs +++ /dev/null @@ -1,32 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; - -namespace ServiceConnect.Interfaces -{ - public interface IProducer : IDisposable - { - void Publish(Type type, byte[] message, Dictionary headers = null); - void Send(Type type, byte[] message, Dictionary headers = null); - void Send(string endPoint, Type type, byte[] message, Dictionary headers = null); - void Disconnect(); - string Type { get;} - long MaximumMessageSize { get; } - void SendBytes(string endPoint, byte[] packet, Dictionary headers); - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Interfaces/IRequestConfiguration.cs b/src/ServiceConnect.Interfaces/IRequestConfiguration.cs deleted file mode 100644 index 8e1652e9f..000000000 --- a/src/ServiceConnect.Interfaces/IRequestConfiguration.cs +++ /dev/null @@ -1,41 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Threading.Tasks; - -namespace ServiceConnect.Interfaces -{ - public interface IRequestConfiguration - { - /// - /// Keeps track of the original request message - /// Check this property when processing reply messages to ensure the request is not proccessed as a reply. - /// - Guid RequestMessageId { get; } - - int EndpointsCount { get; set; } - int ProcessedCount { get; set; } - - /// - /// Configures a handler. - /// - /// The handler to call with the response message - Task SetHandler(Action handler); - - void ProcessMessage(string message, Type typeObject); - } -} diff --git a/src/ServiceConnect.Interfaces/ISendMessageMiddleware.cs b/src/ServiceConnect.Interfaces/ISendMessageMiddleware.cs deleted file mode 100644 index 75ea94575..000000000 --- a/src/ServiceConnect.Interfaces/ISendMessageMiddleware.cs +++ /dev/null @@ -1,14 +0,0 @@ -using System; -using System.Collections.Generic; - -namespace ServiceConnect.Interfaces -{ - public delegate void SendMessageDelegate(Type typeObject, byte[] messageBytes, Dictionary headers = null, string endPoint = null); - - public interface ISendMessageMiddleware - { - SendMessageDelegate Next { get; set; } - - void Process(Type typeObject, byte[] messageBytes, Dictionary headers = null, string endPoint = null); - } -} diff --git a/src/ServiceConnect.Interfaces/ISendMessagePipeline.cs b/src/ServiceConnect.Interfaces/ISendMessagePipeline.cs deleted file mode 100644 index dba9fc8d9..000000000 --- a/src/ServiceConnect.Interfaces/ISendMessagePipeline.cs +++ /dev/null @@ -1,11 +0,0 @@ -using System; -using System.Collections.Generic; - -namespace ServiceConnect.Interfaces -{ - public interface ISendMessagePipeline : IDisposable - { - void ExecutePublishMessagePipeline(Type typeObject, byte[] messageBytes, Dictionary headers = null, string endPoint = null); - void ExecuteSendMessagePipeline(Type typeObject, byte[] messageBytes, Dictionary headers = null, string endPoint = null); - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Interfaces/IStartAsyncProcessManager.cs b/src/ServiceConnect.Interfaces/IStartAsyncProcessManager.cs deleted file mode 100644 index 307316074..000000000 --- a/src/ServiceConnect.Interfaces/IStartAsyncProcessManager.cs +++ /dev/null @@ -1,26 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System.Threading.Tasks; - -namespace ServiceConnect.Interfaces -{ - public interface IStartAsyncProcessManager where TMessage : Message - { - IConsumeContext Context { get; set; } - Task Execute(TMessage message); - } -} diff --git a/src/ServiceConnect.Interfaces/IStartProcessManager.cs b/src/ServiceConnect.Interfaces/IStartProcessManager.cs deleted file mode 100644 index 43af09615..000000000 --- a/src/ServiceConnect.Interfaces/IStartProcessManager.cs +++ /dev/null @@ -1,24 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -namespace ServiceConnect.Interfaces -{ - public interface IStartProcessManager where TMessage : Message - { - IConsumeContext Context { get; set; } - void Execute(TMessage message); - } -} diff --git a/src/ServiceConnect.Interfaces/IStreamHandler.cs b/src/ServiceConnect.Interfaces/IStreamHandler.cs deleted file mode 100644 index 0056bcb2b..000000000 --- a/src/ServiceConnect.Interfaces/IStreamHandler.cs +++ /dev/null @@ -1,24 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -namespace ServiceConnect.Interfaces -{ - public interface IStreamHandler where TMessage : Message - { - IMessageBusReadStream Stream { get; set; } - void Execute(TMessage stream); - } -} diff --git a/src/ServiceConnect.Interfaces/IStreamProcessor.cs b/src/ServiceConnect.Interfaces/IStreamProcessor.cs deleted file mode 100644 index ce79ba383..000000000 --- a/src/ServiceConnect.Interfaces/IStreamProcessor.cs +++ /dev/null @@ -1,23 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -namespace ServiceConnect.Interfaces -{ - public interface IStreamProcessor - { - void ProcessMessage(T message, IMessageBusReadStream stream) where T : Message; - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Interfaces/ITransportSettings.cs b/src/ServiceConnect.Interfaces/ITransportSettings.cs deleted file mode 100644 index 258161a8b..000000000 --- a/src/ServiceConnect.Interfaces/ITransportSettings.cs +++ /dev/null @@ -1,152 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful,git -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; -using System.Net.Security; -using System.Security.Authentication; -using System.Security.Cryptography.X509Certificates; -using System.Net.Security; - -namespace ServiceConnect.Interfaces -{ - public interface ITransportSettings - { - /// - /// Delay (in miliseconds) between bus attempts to redeliver message - /// - int RetryDelay { get; set; } - - /// - /// Maximum number of retries - /// - int MaxRetries { get; set; } - - /// - /// Messaging host - /// - string Host { get; set; } - - /// - /// Messaging host username - /// - string Username { get; set; } - - /// - /// Messaging host password - /// - string Password { get; set; } - - string MachineName { get; set; } - - /// - /// Custom Error Queue Name - /// - string ErrorQueueName { get; set; } - - /// - /// Auditing enabled - /// - bool AuditingEnabled { get; set; } - - /// - /// Custom Audit Queue Name - /// - string AuditQueueName { get; set; } - - /// - /// Disable sending errors to error queue - /// - bool DisableErrors { get; set; } - - /// - /// Custom Heartbeat Queue Name - /// - string HeartbeatQueueName { get; set; } - - /// - /// Contains settings specific to client - /// - IDictionary ClientSettings { get; set; } - - string QueueName { get; set; } - - bool PurgeQueueOnStartup { get; set; } - - /// - /// Communicate over AMQPS instead of AMQP? - /// See also , , , - /// , , , - /// , - /// for configuring SSL specific aspects of transport - /// - bool SslEnabled { get; set; } - - /// - /// Used during server certificate validation. Useful mainly for development purposes. - /// In production, this should be left to (default) - /// - SslPolicyErrors AcceptablePolicyErrors { get; set; } - - /// - /// Used during SSL validation. - /// If set, it must match exactly with Canonical Name (CN) of the certificate. - /// Useful for wildcard certificates where rabbitmq factory will fail to validate ssl certificate otherwise. - /// - string ServerName { get; set; } - - /// - /// Optional client certificate to use during SSL handshake - /// - string CertPath { get; set; } - - /// - /// Password for the optional client certificate used during SSL handshake - /// - string CertPassphrase { get; set; } - - /// - /// X509CertificateCollection containing the optional client certificate. - /// If no collection is set, the client will attempt to load one from the specified - /// - X509CertificateCollection Certs { get; set; } - - /// - /// Optionally use specific ssl protocol version - /// - SslProtocols Version { get; set; } - - /// - /// An optional client specified SSL certificate selection callback. If this is not specified, - /// the first valid certificate found will be used. - /// - LocalCertificateSelectionCallback CertificateSelectionCallback { get; set; } - - /// - /// An optional client specified SSL certificate validation callback. If this is not specified, - /// the default callback will be used in conjunction with the property to - /// determine if the remote server certificate is valid. - /// - RemoteCertificateValidationCallback CertificateValidationCallback { get; set; } - - /// - /// Virtual host to be used for communication. - /// This should only be set if your setup actually has this configured. - /// This value is case sensitive. Incorrectly changing this value will break all communications with RabbitMQ server. - /// - string VirtualHost { get; set; } - } -} diff --git a/src/ServiceConnect.Interfaces/Message.cs b/src/ServiceConnect.Interfaces/Message.cs deleted file mode 100644 index 26f48d72f..000000000 --- a/src/ServiceConnect.Interfaces/Message.cs +++ /dev/null @@ -1,29 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; - -namespace ServiceConnect.Interfaces -{ - public class Message - { - public Message(Guid correlationId) - { - CorrelationId = correlationId; - } - public Guid CorrelationId { get; private set; } - } -} diff --git a/src/ServiceConnect.Interfaces/Messages/Envelope.cs b/src/ServiceConnect.Interfaces/Messages/Envelope.cs new file mode 100644 index 000000000..7ac40d7a1 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Messages/Envelope.cs @@ -0,0 +1,18 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Represents a transport envelope containing headers and a raw body payload. +/// +public sealed class Envelope +{ + /// + /// Mutable transport headers for this envelope. The framework writes pipeline-managed + /// headers (TimeProcessed, DestinationAddress, etc.) here between deserialization and + /// handler dispatch, so the dictionary must be mutable. User code that reads via + /// sees a read-only projection over this same + /// underlying state. + /// + public IDictionary Headers { get; init; } = new Dictionary(StringComparer.Ordinal); + /// Message body bytes. Set once at construction. + public ReadOnlyMemory Body { get; init; } = ReadOnlyMemory.Empty; +} diff --git a/src/ServiceConnect.Interfaces/Messages/IMessageSerializer.cs b/src/ServiceConnect.Interfaces/Messages/IMessageSerializer.cs new file mode 100644 index 000000000..cd8c9bafb --- /dev/null +++ b/src/ServiceConnect.Interfaces/Messages/IMessageSerializer.cs @@ -0,0 +1,53 @@ +using System.Buffers; + +namespace ServiceConnect.Interfaces; + +/// +/// Serializes and deserializes instances. +/// +public interface IMessageSerializer +{ + /// + /// Serializes directly into . + /// Implementations should write without allocating an intermediate array. + /// + /// The message type. + /// The message to serialize. + /// The destination buffer writer. Caller owns its lifetime. + void Serialize(T message, IBufferWriter output) where T : Message; + + /// + /// Deserializes a message of the specified expected type from . + /// + /// The expected message type. + /// The serialized payload. + /// The deserialized message. + T Deserialize(ReadOnlyMemory data) where T : Message; + + /// + /// Deserializes a message of the runtime-supplied . + /// Used by the dispatch path which resolves the CLR type from the registry. + /// + /// The serialized payload. + /// The destination CLR type. + /// The deserialized object. + object Deserialize(ReadOnlyMemory data, Type type); + + /// + /// Deserializes a message from a (possibly multi-segment) . + /// Used by the streaming path where buffered packets are stitched as a sequence rather than + /// copied into a contiguous buffer. + /// + /// + /// The default implementation flattens the sequence into a [] before + /// delegating to , which allocates a + /// copy. Implementations that can read across segments without flattening — e.g. via + /// System.Text.Json.Utf8JsonReader on a sequence — should override to avoid the + /// allocation on multi-segment input. + /// + /// The serialized payload, possibly spanning multiple segments. + /// The destination CLR type. + /// The deserialized object. + object Deserialize(in ReadOnlySequence data, Type type) + => Deserialize(BuffersExtensions.ToArray(data), type); +} diff --git a/src/ServiceConnect.Interfaces/Messages/IMessageTypeRegistry.cs b/src/ServiceConnect.Interfaces/Messages/IMessageTypeRegistry.cs new file mode 100644 index 000000000..e9bf7f737 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Messages/IMessageTypeRegistry.cs @@ -0,0 +1,34 @@ +using System.Diagnostics.CodeAnalysis; + +namespace ServiceConnect.Interfaces; + +/// +/// A safe registry for resolving message type names to instances. +/// Unlike Type.GetType, this registry only resolves types that have been +/// explicitly registered, preventing arbitrary type activation from untrusted input. +/// +public interface IMessageTypeRegistry +{ + /// + /// Attempts to resolve a previously registered type by its name. + /// Returns true if the type was found; otherwise false. + /// + bool TryResolve(string typeName, [MaybeNullWhen(false)] out Type type); + + /// + /// Registers a type so it can later be resolved by name. + /// + void Register(Type type); + + /// + /// Returns a point-in-time snapshot of the registered type-name keys (both + /// and entries). + /// Used by persistors that want to filter stored records to those whose CLR type + /// is currently resolvable (e.g. $in filters in the Mongo aggregator + /// persistor) without materialising and discarding documents that would resolve + /// to a missing type. The snapshot is detached from the registry; subsequent + /// calls do not retroactively appear. + /// + /// The registered type-name keys. + IReadOnlyCollection AllRegisteredTypeNames(); +} diff --git a/src/ServiceConnect.Interfaces/Messages/Message.cs b/src/ServiceConnect.Interfaces/Messages/Message.cs new file mode 100644 index 000000000..680fd70f9 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Messages/Message.cs @@ -0,0 +1,17 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Base type for transport messages. +/// +/// +/// Application messages are expected to inherit from this type so ServiceConnect can +/// flow a correlation identifier consistently across send, publish, request/reply, +/// and process-manager operations. +/// +public class Message(Guid correlationId) : IHasCorrelationId +{ + /// + /// Gets the correlation id used to relate this message to a broader conversation. + /// + public Guid CorrelationId { get; init; } = correlationId; +} diff --git a/src/ServiceConnect.Interfaces/Options/PublishOptions.cs b/src/ServiceConnect.Interfaces/Options/PublishOptions.cs new file mode 100644 index 000000000..154b1260a --- /dev/null +++ b/src/ServiceConnect.Interfaces/Options/PublishOptions.cs @@ -0,0 +1,22 @@ +namespace ServiceConnect.Interfaces.Options; + +/// +/// Optional settings for publish operations. Declared as a readonly record struct +/// for parity with — the mutable sealed-class form allowed +/// concurrent PublishAsync callers sharing one instance to clobber each other +/// between construction and the async pipeline's header read. +/// +public readonly record struct PublishOptions +{ + /// + /// Gets the additional headers to attach to the published message. Typed as + /// a read-only view so the framework does not invite concurrent-caller + /// mutation of a shared dictionary while the async pipeline is iterating it. + /// + public IReadOnlyDictionary? Headers { get; init; } + + /// + /// Gets the routing key used by the transport, when applicable. + /// + public string? RoutingKey { get; init; } +} diff --git a/src/ServiceConnect.Interfaces/Options/ReplyOptions.cs b/src/ServiceConnect.Interfaces/Options/ReplyOptions.cs new file mode 100644 index 000000000..531082e9a --- /dev/null +++ b/src/ServiceConnect.Interfaces/Options/ReplyOptions.cs @@ -0,0 +1,21 @@ +namespace ServiceConnect.Interfaces.Options; + +/// +/// Optional settings for reply operations sent through . +/// Mirrors the shape of and for surface +/// consistency. +/// +/// +/// Carries only : replies do not need an endpoint (the destination is the +/// request's reply-to header), do not need a routing key (replies don't fan out), and do not +/// need a correlation id (auto-correlated via the request's MessageId). +/// +public readonly record struct ReplyOptions +{ + /// + /// Additional headers to attach to the reply message. Read-only view so the framework does + /// not invite concurrent-caller mutation of a shared dictionary while the async pipeline is + /// iterating it. + /// + public IReadOnlyDictionary? Headers { get; init; } +} diff --git a/src/ServiceConnect.Interfaces/Options/RequestOptions.cs b/src/ServiceConnect.Interfaces/Options/RequestOptions.cs new file mode 100644 index 000000000..a5c20edb0 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Options/RequestOptions.cs @@ -0,0 +1,61 @@ +using System.Collections.Generic; + +namespace ServiceConnect.Interfaces.Options; + +/// +/// Options for a request-reply call. Immutable readonly record struct so equality and +/// allocation behaviour match and . +/// +/// +/// Do not pass default(RequestOptions). The C# language semantics of +/// default for a struct skip the parameterless constructor, leaving +/// at 0. The request-reply path rejects this with +/// rather than silently expiring after 0 ms. +/// Use or new RequestOptions() instead. +/// +public readonly record struct RequestOptions +{ + /// + /// Default per-call timeout in milliseconds. Declared static readonly rather than + /// const so a future tuning of the default doesn't require every consumer to + /// recompile to pick up the change — const values are inlined into the consumer's + /// binary at compile time and frozen, whereas static readonly is resolved at runtime. + /// + public static readonly int DefaultTimeoutMs = 10_000; + + /// + /// Initialises to . + /// All other properties default to null. + /// + public RequestOptions() + { + Timeout = DefaultTimeoutMs; + } + + /// Optional headers added to the outbound request envelope. + public IReadOnlyDictionary? Headers { get; init; } + + /// Single-destination override for the request. + public string? EndPoint { get; init; } + + /// Per-call timeout in milliseconds. Defaults to . + public int Timeout { get; init; } + + /// + /// Expected reply count. + /// + /// + /// Positive value — the call completes as soon as that many replies have arrived, + /// or when elapses (whichever happens first). + /// + /// + /// Zero, negative, or null (default) — the call always waits the full + /// and returns every reply received during the window. + /// + /// + /// + public int? ExpectedReplyCount { get; init; } + + /// Default options instance — equivalent to new RequestOptions(). + public static RequestOptions Default => new(); +} diff --git a/src/ServiceConnect.Interfaces/Options/SendOptions.cs b/src/ServiceConnect.Interfaces/Options/SendOptions.cs new file mode 100644 index 000000000..ae6ac3269 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Options/SendOptions.cs @@ -0,0 +1,20 @@ +namespace ServiceConnect.Interfaces.Options; + +/// +/// Optional settings for send operations. +/// +public readonly record struct SendOptions +{ + /// + /// Gets the additional headers to attach to the message. Typed as a read-only + /// view so the framework does not invite concurrent-caller mutation of a + /// shared dictionary while the async pipeline is iterating it. + /// + public IReadOnlyDictionary? Headers { get; init; } + + /// + /// Gets the destination endpoint. Use for fan-out + /// to multiple endpoints. + /// + public string? EndPoint { get; init; } +} diff --git a/src/ServiceConnect.Interfaces/OutgoingEventArgs.cs b/src/ServiceConnect.Interfaces/OutgoingEventArgs.cs deleted file mode 100644 index 5f5cc134e..000000000 --- a/src/ServiceConnect.Interfaces/OutgoingEventArgs.cs +++ /dev/null @@ -1,16 +0,0 @@ -using System.Collections.Generic; - -namespace ServiceConnect.Interfaces; - -public class OutgoingEventArgs -{ - public Message Message { get; init; } - - public Dictionary Headers - { - get => _headers; - set => _headers = value is not null ? value : new(); - } - - private Dictionary _headers = new(); -} \ No newline at end of file diff --git a/src/ServiceConnect.Interfaces/Persistence/IIdentified.cs b/src/ServiceConnect.Interfaces/Persistence/IIdentified.cs new file mode 100644 index 000000000..496266689 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Persistence/IIdentified.cs @@ -0,0 +1,15 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Marker for persistence wrappers that carry a stable storage identifier. Lets +/// persistence callers read the Id without reflection or a generic-parameter cast +/// against the wrapping type (analogous to for the +/// concurrency version). +/// +public interface IIdentified +{ + /// + /// Gets the stable storage identifier assigned at insert. + /// + Guid Id { get; } +} diff --git a/src/ServiceConnect.Interfaces/Persistence/IPersistenceData.cs b/src/ServiceConnect.Interfaces/Persistence/IPersistenceData.cs new file mode 100644 index 000000000..9c7bb8f0e --- /dev/null +++ b/src/ServiceConnect.Interfaces/Persistence/IPersistenceData.cs @@ -0,0 +1,13 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Wraps persisted process-manager data together with persistence metadata. +/// +/// The process-manager data type. +public interface IPersistenceData where T : class, IProcessManagerData +{ + /// + /// Gets or sets the persisted process-manager data. + /// + T Data { get; set; } +} diff --git a/src/ServiceConnect.Interfaces/Persistence/ITimeoutStore.cs b/src/ServiceConnect.Interfaces/Persistence/ITimeoutStore.cs new file mode 100644 index 000000000..4e53e867e --- /dev/null +++ b/src/ServiceConnect.Interfaces/Persistence/ITimeoutStore.cs @@ -0,0 +1,103 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Persists scheduled timeout messages for later dispatch. +/// +/// +/// Lease semantics — consistent across all implementations: +/// +/// Remove and release operations accept an optional lock owner. When supplied, +/// the operation is lease-checked. +/// A worker passing a non-null lockOwner must hold an unexpired lease for +/// the row. An expired-but-not-yet-reaped lease is treated as already invalidated. +/// A reaper (or the natural lease-expiry path) wins any race with a worker; the +/// worker observes . +/// When the lock owner is null, the operation is unconditional and never throws +/// . +/// +/// +public interface ITimeoutStore +{ + /// + /// Inserts a timeout into the store. + /// + /// The timeout to persist. + /// A token that cancels the operation. + Task InsertTimeoutAsync(TimeoutData timeoutData, CancellationToken cancellationToken = default); + + /// + /// Loads the next batch of due timeouts. + /// + /// + /// When supplied, limits the number of timeouts returned in a single poll. Must be + /// greater than zero when supplied; null leaves cap behaviour to the persistor's + /// default (MongoDb uses the configured TimeoutBatchSize; InMemory returns all + /// due timeouts). + /// + /// A token that cancels the operation. + /// + /// Thrown when is non-null and not greater than zero. + /// + Task GetTimeoutsBatchAsync(int? batchSize = null, CancellationToken cancellationToken = default); + + /// + /// Removes a timeout after it has been dispatched. + /// + /// The timeout identifier. + /// + /// When non-null, the row is removed only if its current lock owner matches; when null, + /// the row is removed unconditionally. + /// + /// A token that cancels the operation. + /// + /// Thrown when is supplied and the row's current owner + /// does not match. + /// + Task RemoveDispatchedTimeoutAsync( + Guid id, + Guid? lockOwner = null, + CancellationToken cancellationToken = default); + + /// + /// Releases a dispatched timeout so it may be retried later. + /// + /// The timeout identifier. + /// + /// When non-null, the row is released only if its current lock owner matches; when null, + /// the row is released unconditionally. + /// + /// A token that cancels the operation. + /// + /// Thrown when is supplied and the row's current owner + /// does not match. + /// + Task ReleaseDispatchedTimeoutAsync( + Guid id, + Guid? lockOwner = null, + CancellationToken cancellationToken = default); + + /// + /// Reaps timeouts whose lease has expired but whose row is still flagged locked + /// (worker crashed mid-dispatch, broker partition outlasted the lease). Returns the + /// number of rows reclaimed. + /// + /// + /// + /// The natural-recovery path is the next poll, whose + /// filter accepts both unlocked rows and locked-but-expired rows — operators don't need + /// to call this method for routine recovery. It exists for on-demand cleanup from an + /// admin endpoint or a one-off script when a deployment wants to unstick the queue + /// without waiting for the next poll cycle. + /// + /// + /// The default-interface implementation returns zero. Persistors with explicit lease + /// rows (MongoDB) override with a single batch update; persistors whose batch path + /// already reclaims expired leases as a side-effect (InMemory) can leave the default + /// in place. + /// + /// + /// A token that cancels the operation. + /// The number of rows whose lease was reclaimed. + Task ReapStaleLeasesAsync(CancellationToken cancellationToken = default) + => Task.FromResult(0L); +} diff --git a/src/ServiceConnect.Interfaces/Persistence/IVersioned.cs b/src/ServiceConnect.Interfaces/Persistence/IVersioned.cs new file mode 100644 index 000000000..e62283aa3 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Persistence/IVersioned.cs @@ -0,0 +1,19 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Marker for persistence wrappers that carry a monotonic version for optimistic +/// concurrency control. Lets persistence callers read the version without dynamic +/// dispatch or reflection against the wrapping type. +/// +/// +/// Version is : overflows after ~2.1B updates, +/// which is unreachable for any realistic saga, but the typing change is free +/// (matches MongoDB BSON Int64 natively) and forecloses the failure mode entirely. +/// +public interface IVersioned +{ + /// + /// Gets the persistence version used for optimistic concurrency control. + /// + long Version { get; } +} diff --git a/src/ServiceConnect.Interfaces/Pipelines/FilterAction.cs b/src/ServiceConnect.Interfaces/Pipelines/FilterAction.cs new file mode 100644 index 000000000..b372b0cb2 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Pipelines/FilterAction.cs @@ -0,0 +1,19 @@ +namespace ServiceConnect.Interfaces; + +/// +/// The outcome of a filter or filter-pipeline invocation. +/// +public enum FilterAction +{ + /// + /// Continue pipeline execution. The next filter runs, or — when emitted by the pipeline — the + /// caller proceeds with the publish/send/dispatch the filters guarded. + /// + Continue, + + /// + /// Stop pipeline execution. No subsequent filters run, and the caller short-circuits the + /// guarded operation. + /// + Stop, +} diff --git a/src/ServiceConnect.Interfaces/Pipelines/IFilter.cs b/src/ServiceConnect.Interfaces/Pipelines/IFilter.cs new file mode 100644 index 000000000..8eb1dedc0 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Pipelines/IFilter.cs @@ -0,0 +1,57 @@ +namespace ServiceConnect.Interfaces; + +/// +/// A filter that inspects or modifies messages as they pass through the pipeline. +/// +public interface IFilter +{ + /// + /// Processes the given envelope. Returns to continue + /// pipeline execution, or to block the message and stop + /// further pipeline execution. + /// + /// + /// + /// Filters that need the bus should take as a constructor dependency + /// and be registered in DI (the previous IFilter.Bus property was never populated + /// by the pipeline and returned null at runtime). + /// + /// + /// Lifetime. The pipeline resolves via + /// IServiceProvider.GetRequiredService per dispatch. Register filters as + /// Scoped to share state across the inbound stages of a single message (the + /// dispatcher's scope is flowed through the scope accessor so all stages see + /// the same instance), or as Transient for stateless filters. Singleton filters are + /// permitted but the filter author owns thread-safety — multiple dispatches may + /// invoke the same instance concurrently. Avoid storing per-message state on a + /// Singleton filter (it will be observed by unrelated messages). + /// + /// + /// Exception contract. The pipeline does not wrap or suppress exceptions thrown + /// from ; the exception propagates to the pipeline's caller. + /// Observable behaviour therefore differs by stage: + /// + /// + /// Outgoing filters: the exception propagates to the caller of + /// IBus.PublishAsync / SendAsync / SendToManyAsync / + /// SendRequestAsync / SendRequestMultiAsync / PublishRequestAsync / + /// RouteAsync. The message is not published. + /// BeforeConsumingFilters: the dispatcher catches the exception + /// and reports Success=false — the message goes + /// to retry/error per the queue's configured behaviour. + /// OnConsumedSuccessfullyFilters: the dispatcher's outer catch + /// flips a successful handler dispatch to Success=false, sending the message + /// to retry/error and re-invoking the handler on redelivery — duplicating any side + /// effects the handler already produced. Filter authors should treat these stages as + /// "do not throw"; emit logging or metrics instead and let the message stay acked. + /// AfterConsumingFilters: the dispatcher swallows the exception + /// and logs at Warning. The message remains acked. + /// + /// + /// Bottom line: outgoing and BeforeConsuming filters MAY throw to reject a message; the + /// OnConsumedSuccessfully and AfterConsuming stages SHOULD NOT throw — the handler has + /// already committed its side effects and turning that into a retry is a duplicate-work bug. + /// + /// + Task ProcessAsync(Envelope envelope, CancellationToken cancellationToken = default); +} diff --git a/src/ServiceConnect.Interfaces/Pipelines/IFilterPipeline.cs b/src/ServiceConnect.Interfaces/Pipelines/IFilterPipeline.cs new file mode 100644 index 000000000..bba4ce6f6 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Pipelines/IFilterPipeline.cs @@ -0,0 +1,35 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Manages the execution of outgoing and consuming filter stages. +/// +public interface IFilterPipeline +{ + /// + /// Executes all outgoing filters. Returns if any filter + /// blocked the message; otherwise . + /// + Task ExecuteOutgoingFiltersAsync(Envelope envelope, CancellationToken cancellationToken = default); + + /// + /// Executes all before-consuming filters. Returns if any + /// filter blocked the message; otherwise . + /// + Task ExecuteBeforeConsumingFiltersAsync(Envelope envelope, CancellationToken cancellationToken = default); + + /// + /// Executes all after-consuming filters. Returns if any + /// filter blocked the message; otherwise . + /// + Task ExecuteAfterConsumingFiltersAsync(Envelope envelope, CancellationToken cancellationToken = default); + + /// + /// Executes all on-consumed-successfully filters. Returns + /// if any filter halted the pipeline; + /// otherwise . The dispatcher invokes this + /// stage only after a successful handler — failures and unhandled messages + /// skip it. halts further on-success filters + /// but does not flip the dispatch result to failure. + /// + Task ExecuteOnConsumedSuccessfullyFiltersAsync(Envelope envelope, CancellationToken cancellationToken = default); +} diff --git a/src/ServiceConnect.Interfaces/Pipelines/IMessageProcessingMiddleware.cs b/src/ServiceConnect.Interfaces/Pipelines/IMessageProcessingMiddleware.cs new file mode 100644 index 000000000..7aa30ae0e --- /dev/null +++ b/src/ServiceConnect.Interfaces/Pipelines/IMessageProcessingMiddleware.cs @@ -0,0 +1,24 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Middleware that wraps inbound message processing. +/// +public interface IMessageProcessingMiddleware +{ + /// + /// Processes an inbound message and optionally delegates to the next middleware. + /// + /// The raw message payload. + /// The resolved CLR message type. + /// The deserialized message instance. + /// The message headers. + /// The current message envelope. + /// The next delegate in the chain. + /// A token that cancels processing. + /// The consume result. + Task ProcessAsync( + ReadOnlyMemory messageBytes, Type messageType, object message, + IDictionary headers, Envelope envelope, + MessageProcessingDelegate next, + CancellationToken cancellationToken); +} diff --git a/src/ServiceConnect.Interfaces/Pipelines/ISendMessageMiddleware.cs b/src/ServiceConnect.Interfaces/Pipelines/ISendMessageMiddleware.cs new file mode 100644 index 000000000..da5822129 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Pipelines/ISendMessageMiddleware.cs @@ -0,0 +1,20 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Middleware that wraps outgoing send and publish operations. Implementations +/// receive a exposing the strongly-typed message, +/// serialized bytes, headers, and routing metadata. +/// +public interface ISendMessageMiddleware +{ + /// + /// Processes an outgoing message and optionally delegates to the next middleware. + /// + /// The send context. + /// The next delegate in the chain. + /// A token that cancels the operation. + Task ProcessAsync( + SendContext context, + SendMessageDelegate next, + CancellationToken cancellationToken); +} diff --git a/src/ServiceConnect.Interfaces/Pipelines/ISendMessagePipeline.cs b/src/ServiceConnect.Interfaces/Pipelines/ISendMessagePipeline.cs new file mode 100644 index 000000000..4c79a0dcb --- /dev/null +++ b/src/ServiceConnect.Interfaces/Pipelines/ISendMessagePipeline.cs @@ -0,0 +1,25 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Executes the configured outgoing message pipeline. +/// +public interface ISendMessagePipeline : IAsyncDisposable +{ + /// + /// Executes the publish pipeline for an outgoing message. + /// + /// The send context for the publish. + /// A token that cancels the operation. + Task ExecutePublishMessagePipelineAsync( + SendContext context, + CancellationToken cancellationToken = default); + + /// + /// Executes the send pipeline for an outgoing message. + /// + /// The send context for the send. + /// A token that cancels the operation. + Task ExecuteSendMessagePipelineAsync( + SendContext context, + CancellationToken cancellationToken = default); +} diff --git a/src/ServiceConnect.Interfaces/Pipelines/MessageProcessingDelegate.cs b/src/ServiceConnect.Interfaces/Pipelines/MessageProcessingDelegate.cs new file mode 100644 index 000000000..0ab662a1e --- /dev/null +++ b/src/ServiceConnect.Interfaces/Pipelines/MessageProcessingDelegate.cs @@ -0,0 +1,16 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Represents the next step in the inbound message-processing middleware chain. +/// +/// The raw message payload. +/// The resolved CLR message type. +/// The deserialized message instance. +/// The message headers. +/// The current message envelope. +/// A token that cancels processing. +/// The consume result. +public delegate Task MessageProcessingDelegate( + ReadOnlyMemory messageBytes, Type messageType, object message, + IDictionary headers, Envelope envelope, + CancellationToken cancellationToken); diff --git a/src/ServiceConnect.Interfaces/Pipelines/SendContext.cs b/src/ServiceConnect.Interfaces/Pipelines/SendContext.cs new file mode 100644 index 000000000..3804727e1 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Pipelines/SendContext.cs @@ -0,0 +1,53 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Carries the data threaded through the outgoing send pipeline so that +/// middleware authors see the strongly-typed alongside +/// the serialized payload, headers, and routing metadata. +/// +public sealed class SendContext +{ + /// The strongly-typed message instance the caller passed. + public required Message Message { get; init; } + + /// The CLR type of . + public required Type MessageType { get; init; } + + /// + /// The serialized message body, exactly as the producer will send it. Read-only: + /// implementations CANNOT rewrite the wire payload + /// here (the property is init-only). Use cases like compression, encryption, or + /// signing of the body must be applied at the layer + /// (or via a custom serializer) — not in send-pipeline middleware. Middleware can still + /// inspect the bytes for observability (size, content-type sniffing) and mutate + /// (tracing, signing-hash headers, dedup keys). + /// + public required ReadOnlyMemory MessageBytes { get; init; } + + /// + /// Mutable transport headers for the outgoing message. Pipeline middleware (telemetry, + /// signing-hash stamping, dedup-key writing) mutates this dictionary before the message + /// is published. Distinct from (read-only — + /// incoming side) and from (also mutable, + /// observed by telemetry). + /// + public required IDictionary Headers { get; init; } + + /// The destination endpoint when applicable; null for publish. + public string? EndPoint { get; init; } + + /// The routing key when applicable; null otherwise. + public string? RoutingKey { get; init; } + + /// The call site that produced this context. + public required SendOperation Operation { get; init; } + + /// + /// Framework-controlled outbound routing-slip hop counter. Set by Bus.RouteAsync + /// before the send middleware runs; stamped onto the outgoing transport headers by the + /// producer after middleware. The standard middleware contract is to pass the same + /// through next; transports stamp the wire value from + /// this property, not from . + /// + public int? RoutingSlipHopsCompleted { get; init; } +} diff --git a/src/ServiceConnect.Interfaces/Pipelines/SendMessageDelegate.cs b/src/ServiceConnect.Interfaces/Pipelines/SendMessageDelegate.cs new file mode 100644 index 000000000..8208033be --- /dev/null +++ b/src/ServiceConnect.Interfaces/Pipelines/SendMessageDelegate.cs @@ -0,0 +1,10 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Represents the next step in the outgoing send/publish middleware chain. +/// +/// The send context threaded through the pipeline. +/// A token that cancels the operation. +public delegate Task SendMessageDelegate( + SendContext context, + CancellationToken cancellationToken); diff --git a/src/ServiceConnect.Interfaces/Pipelines/SendOperation.cs b/src/ServiceConnect.Interfaces/Pipelines/SendOperation.cs new file mode 100644 index 000000000..b1ae433bf --- /dev/null +++ b/src/ServiceConnect.Interfaces/Pipelines/SendOperation.cs @@ -0,0 +1,20 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Categorises the call site that produced a . +/// +public enum SendOperation +{ + /// Originated from . + Publish, + + /// Originated from . + Send, + + /// + /// Originated from , + /// , or + /// . + /// + Request, +} diff --git a/src/ServiceConnect.Interfaces/ProcessManagerToMessageMap.cs b/src/ServiceConnect.Interfaces/ProcessManagerToMessageMap.cs deleted file mode 100644 index 1e4e51494..000000000 --- a/src/ServiceConnect.Interfaces/ProcessManagerToMessageMap.cs +++ /dev/null @@ -1,28 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; - -namespace ServiceConnect.Interfaces -{ - public class ProcessManagerToMessageMap - { - public Func MessageProp; - public Type MessageType; - public Dictionary PropertiesHierarchy; - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Interfaces/ProcessManagers/IProcessHandler.cs b/src/ServiceConnect.Interfaces/ProcessManagers/IProcessHandler.cs new file mode 100644 index 000000000..87ab90c60 --- /dev/null +++ b/src/ServiceConnect.Interfaces/ProcessManagers/IProcessHandler.cs @@ -0,0 +1,58 @@ +using System.Threading; + +namespace ServiceConnect.Interfaces; + +/// +/// Process-manager handler: correlates incoming messages of type +/// to a persisted +/// instance keyed on . +/// +/// Persisted state carried across messages in the saga. +/// Message contract routed into this handler. +public interface IProcessHandler + where TData : class, IProcessManagerData, new() + where TMessage : Message +{ + /// + /// Invoked with the deserialized message, the correlated persisted state, and the + /// per-message consume context. Mutations to are persisted + /// when the method returns. The is sourced + /// from the transport consume context and signals cooperative shutdown. + /// + /// + /// + /// Idempotency invariant. The handler MUST be safe to invoke more than once + /// for the same logical message. ServiceConnect delivers at-least-once: a transport + /// redelivery (consumer crash before ack, broker requeue, optimistic-concurrency + /// retry on ) can replay any + /// message into this handler, including after the handler has already mutated + /// and committed the persistence write but the broker + /// ack failed. Side effects with external observability — outbound bus sends, + /// HTTP calls, DB writes outside the saga, file I/O — must therefore be guarded + /// by an idempotency check (e.g., a state flag in , an + /// IdempotencyKey on the outbound message, an upsert with a deterministic key). + /// A handler that unconditionally SendAsyncs an outbound command on every + /// invocation will double-send on retry; that is the framework's contract, not + /// a bug. + /// + /// + Task HandleAsync(TMessage message, TData data, IConsumeContext context, CancellationToken cancellationToken = default); + + /// + /// Configures the correlation mapping between and + /// . The default implementation maps on CorrelationId. + /// + /// + /// Purity contract. The framework calls + /// once per delivery and reuses the same mapper instance for both the initial saga lookup + /// and the post-handler persistence find. Implementations MUST be pure with respect to + /// handler-instance state — read from the parameter and the type + /// system, not from mutable handler fields. Returning a mapping that depends on mutable state + /// would cause inconsistent behaviour if the framework's call site is ever extended to call + /// the method again. + /// + void ConfigureMapper(IProcessManagerPropertyMapper mapper) + { + mapper.ConfigureMapping(d => d.CorrelationId, m => m.CorrelationId); + } +} diff --git a/src/ServiceConnect.Interfaces/ProcessManagers/IProcessManagerData.cs b/src/ServiceConnect.Interfaces/ProcessManagers/IProcessManagerData.cs new file mode 100644 index 000000000..7a238aa36 --- /dev/null +++ b/src/ServiceConnect.Interfaces/ProcessManagers/IProcessManagerData.cs @@ -0,0 +1,12 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Base contract for persisted process-manager state. +/// +public interface IProcessManagerData +{ + /// + /// Gets or sets the correlation id that identifies the process instance. + /// + Guid CorrelationId { get; set; } +} diff --git a/src/ServiceConnect.Interfaces/ProcessManagers/IProcessManagerFinder.cs b/src/ServiceConnect.Interfaces/ProcessManagers/IProcessManagerFinder.cs new file mode 100644 index 000000000..dc7b9bd9b --- /dev/null +++ b/src/ServiceConnect.Interfaces/ProcessManagers/IProcessManagerFinder.cs @@ -0,0 +1,86 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Finds and persists process-manager state. +/// +public interface IProcessManagerFinder +{ + /// + /// Finds the persisted process-manager state that matches an incoming message. + /// + /// The process-manager data type. + /// The property mapper describing correlation rules. + /// The incoming message. + /// A token that cancels the operation. + /// The persisted data wrapper, or when no match exists. + /// + /// + /// Fresh-copy contract. The returned reference + /// MUST be a fresh copy per call, independent of any cached storage. Callers (notably + /// ProcessManagerProcessor's dispatch loop) freely mutate Data in handler scope; + /// the persistence layer must guarantee that a subsequent + /// invocation observes the previously-stored state, not the in-flight mutation. Implementors + /// that cache rows internally MUST clone (or otherwise materialise a fresh graph) before returning. + /// + /// + /// Built-in implementations comply: InMemoryProcessManagerFinder deep-clones via + /// DeepClone.Clone; MongoDbProcessManagerFinder relies on BSON deserialization + /// to produce a fresh CLR object per query. + /// + /// + Task?> FindDataAsync(IProcessManagerPropertyMapper mapper, Message message, CancellationToken cancellationToken = default) where T : class, IProcessManagerData; + + /// + /// Inserts new process-manager state. + /// + /// The process-manager state to insert. + /// A token that cancels the operation. + Task InsertDataAsync(IProcessManagerData data, CancellationToken cancellationToken = default); + + /// + /// Updates existing process-manager state. + /// + /// The process-manager data type. + /// The persisted data wrapper to update. + /// A token that cancels the operation. + Task UpdateDataAsync(IPersistenceData data, CancellationToken cancellationToken = default) where T : class, IProcessManagerData; + + /// + /// Deletes persisted process-manager state. Use this to physically complete a saga and + /// remove its row from the store; the framework does NOT call this automatically — saga + /// completion is a deliberate decision the application owns. + /// + /// The process-manager data type. + /// The persisted data wrapper to delete. + /// A token that cancels the operation. + /// + /// + /// Saga completion patterns. Two approaches: + /// + /// + /// + /// Flag-based completion (default). Set a boolean on the data + /// (data.IsCompleted = true); handlers check the flag on entry and return early. The + /// row lives in the store indefinitely — useful for audit, but consumes storage. This is + /// what the framework's built-in dispatch loop and the bundled examples do; no + /// DeleteDataAsync call required. + /// + /// + /// Physical deletion via . Resolve + /// from DI inside the handler and call this method to + /// remove the row. After deletion, a late-arriving message or timeout for the same + /// correlation id sees no saga and starts a fresh one. Reserve for sagas whose completion + /// is final and replay-safe. The framework's success-path persist re-checks for the row + /// before issuing UpdateData; a handler that deleted the saga mid-invocation and then + /// returned cleanly will NOT have its deletion silently undone by an update that + /// resurrects the just-deleted row. + /// + /// + /// + /// All first-party persistors enforce optimistic concurrency on delete (filter on + /// Version) and throw when the row is + /// missing or stale — a delete cannot silently lose a concurrent update. + /// + /// + Task DeleteDataAsync(IPersistenceData data, CancellationToken cancellationToken = default) where T : class, IProcessManagerData; +} diff --git a/src/ServiceConnect.Interfaces/ProcessManagers/IProcessManagerPropertyMapper.cs b/src/ServiceConnect.Interfaces/ProcessManagers/IProcessManagerPropertyMapper.cs new file mode 100644 index 000000000..b0a64a263 --- /dev/null +++ b/src/ServiceConnect.Interfaces/ProcessManagers/IProcessManagerPropertyMapper.cs @@ -0,0 +1,47 @@ +using System.Linq.Expressions; + +namespace ServiceConnect.Interfaces; + +/// +/// Defines how process-manager properties are matched against incoming message properties. +/// +public interface IProcessManagerPropertyMapper +{ + /// + /// Gets the configured process-manager to message mappings. + /// + IReadOnlyList Mappings { get; } + + /// + /// Adds a mapping between a process-manager property and a message property. + /// + /// The process-manager data type. + /// The message type. + /// The process-manager property selector. + /// The message property selector. + /// + /// + /// Cross-process duplicate-saga warning. When this method is used to correlate on a + /// property other than CorrelationId (e.g. OrderNumber), the storage layer's + /// uniqueness fence is the CorrelationId column ONLY. Two cluster nodes can each + /// process a "start" message for the same business key simultaneously, each generate a + /// fresh CorrelationId for the new saga, and BOTH inserts will succeed — fragmenting + /// the saga's state across two rows. The in-process correlation lock fences this within a + /// single node but not across nodes. If you run clustered consumers and rely on a + /// custom-mapped property for correlation, the user code MUST enforce uniqueness on that + /// property at the storage layer (e.g. a Mongo unique index created out-of-band on + /// Data.<YourProperty>, or an idempotency-key pattern at the message-source + /// side that ensures only one node receives the start). + /// + /// + /// Calling more than once for the same + /// is rejected — the first registration wins via the framework's lookup-by-FirstOrDefault. + /// Implementations should throw on duplicate rather than + /// silently shadowing the second call. + /// + /// + /// A mapping for has already been registered. + void ConfigureMapping(Expression> processManagerProperty, Expression> messageExpression) + where TProcessManagerData : IProcessManagerData + where TMessage : Message; +} diff --git a/src/ServiceConnect.Interfaces/ProcessManagers/IProcessManagerTypeRegistry.cs b/src/ServiceConnect.Interfaces/ProcessManagers/IProcessManagerTypeRegistry.cs new file mode 100644 index 000000000..c8aed2f87 --- /dev/null +++ b/src/ServiceConnect.Interfaces/ProcessManagers/IProcessManagerTypeRegistry.cs @@ -0,0 +1,15 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Enumerates the saga data types registered with the bus. Used by persistence +/// providers that need to pre-create per-saga structures (e.g. Mongo unique +/// CorrelationId indexes) at startup. +/// +public interface IProcessManagerTypeRegistry +{ + /// + /// All saga data types currently registered. Implementations should return a + /// snapshot — callers may iterate freely without locking. + /// + IEnumerable SagaDataTypes { get; } +} diff --git a/src/ServiceConnect.Interfaces/ProcessManagers/ProcessManagerToMessageMap.cs b/src/ServiceConnect.Interfaces/ProcessManagers/ProcessManagerToMessageMap.cs new file mode 100644 index 000000000..d2d534002 --- /dev/null +++ b/src/ServiceConnect.Interfaces/ProcessManagers/ProcessManagerToMessageMap.cs @@ -0,0 +1,22 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Describes how a message property maps onto process-manager state. +/// +public sealed class ProcessManagerToMessageMap +{ + /// + /// Gets the compiled accessor used to read the mapped value from a message instance. + /// + public required Func MessageProp { get; init; } + + /// + /// Gets the message type the mapping applies to. + /// + public required Type MessageType { get; init; } + + /// + /// Gets the process-manager property path represented as a property-name hierarchy. + /// + public IReadOnlyDictionary PropertiesHierarchy { get; init; } = new Dictionary(StringComparer.Ordinal); +} diff --git a/src/ServiceConnect.Interfaces/Properties/AssemblyInfo.cs b/src/ServiceConnect.Interfaces/Properties/AssemblyInfo.cs deleted file mode 100644 index 9604375de..000000000 --- a/src/ServiceConnect.Interfaces/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,19 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("ServiceConnect.Interfaces")] -[assembly: AssemblyTrademark("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("58f9fd7a-3951-4778-8146-456c3f60c6dc")] diff --git a/src/ServiceConnect.Interfaces/PublishEventArgs.cs b/src/ServiceConnect.Interfaces/PublishEventArgs.cs deleted file mode 100644 index 36e258ea9..000000000 --- a/src/ServiceConnect.Interfaces/PublishEventArgs.cs +++ /dev/null @@ -1,6 +0,0 @@ -namespace ServiceConnect.Interfaces; - -public class PublishEventArgs : OutgoingEventArgs -{ - public string RoutingKey { get; init; } = string.Empty; -} \ No newline at end of file diff --git a/src/ServiceConnect.Interfaces/SendEventArgs.cs b/src/ServiceConnect.Interfaces/SendEventArgs.cs deleted file mode 100644 index 03c0d5409..000000000 --- a/src/ServiceConnect.Interfaces/SendEventArgs.cs +++ /dev/null @@ -1,17 +0,0 @@ -using System.Collections.Generic; - -namespace ServiceConnect.Interfaces; - -public class SendEventArgs : OutgoingEventArgs -{ - public string EndPoint { get; init; } = string.Empty; - - public IList EndPoints - { - get => EndPoint - .Remove(0) - .Remove(EndPoint.Length - 1) - .Split(','); - init => EndPoint = "[" + string.Join(',', value) + "]"; - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Interfaces/ServiceConnect.Interfaces.csproj b/src/ServiceConnect.Interfaces/ServiceConnect.Interfaces.csproj index 978c45ddd..8b52f11d9 100644 --- a/src/ServiceConnect.Interfaces/ServiceConnect.Interfaces.csproj +++ b/src/ServiceConnect.Interfaces/ServiceConnect.Interfaces.csproj @@ -1,18 +1,13 @@ - + - net6.0 + enable + enable ServiceConnect.Interfaces ServiceConnect.Interfaces - false - false - false - 6.0.0 - ServiceConnect Interfaces + ServiceConnect.Interfaces + Public API contracts (IBus, IMessage, IConsumer, IProducer, options and headers) for the ServiceConnect messaging framework. Reference this package from libraries that need to type-check against ServiceConnect without taking a runtime dependency. + ServiceConnect;Interfaces;Contracts;MessageBus;Messaging;Message;Bus;Service - - - - diff --git a/src/ServiceConnect.Interfaces/ServiceConnect.Interfaces.nuspec b/src/ServiceConnect.Interfaces/ServiceConnect.Interfaces.nuspec deleted file mode 100644 index f3a501ab5..000000000 --- a/src/ServiceConnect.Interfaces/ServiceConnect.Interfaces.nuspec +++ /dev/null @@ -1,19 +0,0 @@ - - - - ServiceConnect.Interfaces - 6.0.0 - ServiceConnect.Interfaces - Jakub Pachansky,Tim Watson - Jakub Pachansky,Tim Watson - false - ServiceConnect Interfaces - en-GB - https://github.com/R-Suite/ServiceConnect - Copyright 2019 ServiceConnect. All rights reserved - MessageBus Interfaces,MessageBus.Interfaces,ServiceConnect,R MessageBus,MessageBus - - - - - \ No newline at end of file diff --git a/src/ServiceConnect.Interfaces/Streaming/IMessageBusReadStream.cs b/src/ServiceConnect.Interfaces/Streaming/IMessageBusReadStream.cs new file mode 100644 index 000000000..3da006085 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Streaming/IMessageBusReadStream.cs @@ -0,0 +1,76 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Reassembles a streamed sequence of message packets into a readable payload. +/// +/// +/// +/// SequenceId uniqueness contract. The framework admits stream packets by +/// . Producers MUST generate a fresh for +/// every call to IBus.CreateStream<T>; the framework's +/// IMessageBusWriteStream implementation does so internally. Two producers +/// that explicitly construct the same will write into the +/// same in-flight stream — the receiver cannot distinguish them, and packets from +/// the second producer will collide at the framework-enforced contiguous +/// PacketNumber invariant, faulting both senders' streams. +/// +/// +/// The collision is bounded by per-stream caps (active-stream count, total stream +/// size, packet-number ceiling) so a misbehaving or hostile producer cannot +/// arbitrarily corrupt unrelated streams, but two cooperating producers must not +/// share a SequenceId. +/// +/// +public interface IMessageBusReadStream +{ + /// + /// Writes a packet into the stream buffer. + /// + /// The packet payload. The implementation copies the bytes for retention; + /// the caller's buffer can be reused after the call returns. + /// The zero-based packet number. + void Write(ReadOnlyMemory data, long packetNumber); + + /// + /// Reads the assembled payload as a single byte array. + /// + /// The assembled payload. + /// + /// Thrown when the stream is not yet complete, or when a packet is missing during assembly. + /// A missing-packet condition is unrecoverable; treat the stream as corrupt and discard it. + /// + byte[] Read(); + + /// + /// Determines whether all expected packets have been received. + /// + /// when the stream is complete; otherwise . + bool IsComplete(); + + /// + /// Sets the final packet number expected for the stream. + /// + /// The final packet number. + void SetLastPacketNumber(long lastPacketNumber); + + /// + /// Gets the final packet number expected for the stream. + /// + long LastPacketNumber { get; } + + /// + /// Gets the stream sequence identifier. + /// + string SequenceId { get; } + + /// + /// Reads the assembled payload as a . + /// + /// The assembled payload sequence. + /// + /// Thrown when the stream is not yet complete, or when a packet is missing during assembly. + /// A missing-packet condition is unrecoverable; treat the stream as corrupt and discard it. + /// + System.Buffers.ReadOnlySequence ReadSequence() + => new(Read()); +} diff --git a/src/ServiceConnect.Interfaces/Streaming/IMessageBusWriteStream.cs b/src/ServiceConnect.Interfaces/Streaming/IMessageBusWriteStream.cs new file mode 100644 index 000000000..4c9fdf514 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Streaming/IMessageBusWriteStream.cs @@ -0,0 +1,41 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Splits a payload into transport packets and writes them to the message bus. +/// +/// +/// The framework allocates a unique as the wire-level +/// SequenceId for each stream. Application code that constructs a custom +/// stream implementation MUST mint a fresh GUID per stream; sharing a SequenceId +/// across producers causes the receiver to merge their packets and fault both +/// streams. See for the full contract. +/// +public interface IMessageBusWriteStream : IAsyncDisposable +{ + /// + /// Closes the stream best-effort, releasing producer resources. Never surfaces + /// transport, timeout, or cancellation exceptions through await using — + /// a wedged drain, an unreachable broker, or a closed channel will not propagate. + /// If the close packet does not reach the receiver, the framework's stream + /// eviction sweep reclaims the orphaned read-side state after StreamTimeout. + /// + new ValueTask DisposeAsync(); + + + /// + /// Writes the supplied buffer to the stream as a single transport packet. The caller + /// is responsible for chunking large payloads into multiple WriteAsync calls + /// when packet sizes need to stay below a transport limit. + /// + /// The bytes to write. The buffer is read once and the underlying + /// memory is not retained past the call completion; the caller can reuse the buffer. + /// Token that cancels the write before it is dispatched + /// to the producer. + Task WriteAsync(ReadOnlyMemory buffer, CancellationToken cancellationToken = default); + + /// + /// Flushes any remaining data and marks the stream as complete. + /// + /// Token that aborts the in-flight drain wait and the close send. + Task CloseAsync(CancellationToken cancellationToken = default); +} diff --git a/src/ServiceConnect.Interfaces/TimeoutData.cs b/src/ServiceConnect.Interfaces/TimeoutData.cs deleted file mode 100644 index 253013a0b..000000000 --- a/src/ServiceConnect.Interfaces/TimeoutData.cs +++ /dev/null @@ -1,41 +0,0 @@ -using System; -using System.Collections.Generic; - -namespace ServiceConnect.Interfaces -{ - /// - /// Holds timeout information. - /// - public class TimeoutData - { - /// - /// Timeout id - /// - public Guid Id { get; set; } - - /// - /// The address of the client who requested the timeout. - /// - public string Destination { get; set; } - - /// - /// The saga ID. - /// - public Guid ProcessManagerId { get; set; } - - /// - /// The time at which the timeout expires. - /// - public DateTime Time { get; set; } - - /// - /// Store the headers to preserve them across timeouts. - /// - public IDictionary Headers { get; set; } - - /// - /// Mark processed tiomouts as dispatched to prevent multiple dispatch of the same timeout - /// - public bool Locked { get; set; } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Interfaces/TimeoutMessage.cs b/src/ServiceConnect.Interfaces/TimeoutMessage.cs deleted file mode 100644 index 6fd8f6861..000000000 --- a/src/ServiceConnect.Interfaces/TimeoutMessage.cs +++ /dev/null @@ -1,15 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using System.Text; -using System.Threading.Tasks; - -namespace ServiceConnect.Interfaces -{ - public class TimeoutMessage : Message - { - public TimeoutMessage(Guid correlationId) : base(correlationId) - { - } - } -} diff --git a/src/ServiceConnect.Interfaces/Timeouts/TimeoutData.cs b/src/ServiceConnect.Interfaces/Timeouts/TimeoutData.cs new file mode 100644 index 000000000..243fdf915 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Timeouts/TimeoutData.cs @@ -0,0 +1,57 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Holds timeout information. +/// +public sealed class TimeoutData +{ + /// + /// Timeout id + /// + public Guid Id { get; set; } + + /// + /// The address of the client who requested the timeout, or + /// when no destination is associated with the timeout. + /// + /// + /// In production the bus sets this to the local queue name when inserting + /// the timeout; the timeout-dispatch service treats + /// or empty as "no recipient" and skips the dispatch. + /// + public string? Destination { get; set; } + + /// + /// The saga ID. + /// + public Guid ProcessManagerId { get; set; } + + /// + /// The time at which the timeout expires. + /// + public DateTimeOffset Time { get; set; } + + /// + /// Store the headers to preserve them across timeouts. + /// + public IReadOnlyDictionary Headers { get; init; } = new Dictionary(StringComparer.Ordinal); + + /// + /// Mark processed timeouts as dispatched to prevent multiple dispatch of the same timeout + /// + public bool Locked { get; set; } + + /// + /// When is set by a polling consumer, this holds the + /// unique poll-session id of the consumer that did the locking. Readers + /// filter on this so a batch read sees only its own locked rows, not rows + /// locked by a concurrent consumer. + /// + public Guid LockedBy { get; set; } + + /// + /// When set, indicates when the current dispatch lock lease expires and the + /// timeout may be reclaimed by another poller. + /// + public DateTimeOffset? LockExpiresAt { get; set; } +} diff --git a/src/ServiceConnect.Interfaces/Timeouts/TimeoutMessage.cs b/src/ServiceConnect.Interfaces/Timeouts/TimeoutMessage.cs new file mode 100644 index 000000000..189473e11 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Timeouts/TimeoutMessage.cs @@ -0,0 +1,7 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Base message type used when dispatching scheduled process-manager timeouts. +/// +/// The correlation id of the target process instance. +public class TimeoutMessage(Guid correlationId) : Message(correlationId); diff --git a/src/ServiceConnect.Interfaces/Timeouts/TimeoutsBatch.cs b/src/ServiceConnect.Interfaces/Timeouts/TimeoutsBatch.cs new file mode 100644 index 000000000..521907e22 --- /dev/null +++ b/src/ServiceConnect.Interfaces/Timeouts/TimeoutsBatch.cs @@ -0,0 +1,13 @@ +namespace ServiceConnect.Interfaces; + +/// +/// Represents a batch of due timeouts returned from a timeout store query. +/// +public sealed class TimeoutsBatch +{ + /// + /// Gets the timeouts that are ready to be triggered. + /// Producers assign once at construction via init; consumers read only. + /// + public IReadOnlyList DueTimeouts { get; init; } = []; +} diff --git a/src/ServiceConnect.Interfaces/TimeoutsBatch.cs b/src/ServiceConnect.Interfaces/TimeoutsBatch.cs deleted file mode 100644 index 344b25aaa..000000000 --- a/src/ServiceConnect.Interfaces/TimeoutsBatch.cs +++ /dev/null @@ -1,18 +0,0 @@ -using System; -using System.Collections.Generic; - -namespace ServiceConnect.Interfaces -{ - public class TimeoutsBatch - { - /// - /// Timeouts due to be triggered - /// - public IList DueTimeouts { get; set; } - - /// - /// The next time to query peristance store for due timeouts - /// - public DateTime NextQueryTime { get; set; } - } -} diff --git a/src/ServiceConnect.Persistance.InMemory/CacheItem.cs b/src/ServiceConnect.Persistance.InMemory/CacheItem.cs deleted file mode 100644 index 86d15970b..000000000 --- a/src/ServiceConnect.Persistance.InMemory/CacheItem.cs +++ /dev/null @@ -1,49 +0,0 @@ -using System; - -namespace ServiceConnect.Persistance.InMemory -{ - public class CacheItem - { - /// - /// Initializes a new instance of the class. - /// - public CacheItem() { } - - /// - /// Initialise une nouvelle instance de class. - /// - /// The value. - /// The priority. - /// The relative expiry. - public CacheItem(object value, CacheItemPriority priority, TimeSpan? relativeExpiry = null) - { - Value = value; - Priority = priority; - RelativeExpiry = relativeExpiry; - } - - /// - /// Gets or sets the value. - /// - /// - /// The value. - /// - public object Value { get; set; } - - /// - /// Gets or sets the priority. - /// - /// - /// The priority. - /// - public CacheItemPriority Priority { get; set; } - - /// - /// Gets or sets the relative expiry. - /// - /// - /// The relative expiry. - /// - public TimeSpan? RelativeExpiry { get; set; } - } -} diff --git a/src/ServiceConnect.Persistance.InMemory/CacheItemPriority.cs b/src/ServiceConnect.Persistance.InMemory/CacheItemPriority.cs deleted file mode 100644 index 08bf124b3..000000000 --- a/src/ServiceConnect.Persistance.InMemory/CacheItemPriority.cs +++ /dev/null @@ -1,8 +0,0 @@ -namespace ServiceConnect.Persistance.InMemory -{ - public enum CacheItemPriority - { - Normal, - High, - } -} diff --git a/src/ServiceConnect.Persistance.InMemory/CacheProvider.cs b/src/ServiceConnect.Persistance.InMemory/CacheProvider.cs deleted file mode 100644 index cf24fb19b..000000000 --- a/src/ServiceConnect.Persistance.InMemory/CacheProvider.cs +++ /dev/null @@ -1,225 +0,0 @@ -using System; -using System.Collections.Concurrent; -using System.Collections.Generic; -using System.Linq; -using System.Reactive.Linq; -using System.Threading.Tasks; - -namespace ServiceConnect.Persistance.InMemory -{ - /// - /// This library is based on http://ranahossain.blogspot.fr/2014/01/cache-provider-for-portable-class.html - /// - public class CacheProvider : ICacheProvider - { - public static CacheProvider Default { get; } = new CacheProvider(); - - - private readonly ConcurrentDictionary _cache = new ConcurrentDictionary(); - private readonly ConcurrentDictionary _slidingTime = new ConcurrentDictionary(); - - #region Implementation of ICacheProvider - - public event EventHandler KeyRemoved; - - /// - /// Add a value to the cache with a relative expiry time, e.g 10 minutes. - /// - /// The type of the key. - /// The type of the value. - /// The key. - /// The value. - /// The sliding time when the key value pair should expire and be purged from the cache. - /// Normal priority will be purged on low memory warning. - public void Add(TKey key, TValue value, TimeSpan slidingExpiry, CacheItemPriority priority = CacheItemPriority.Normal) - { - Add(key, value, slidingExpiry, priority, true); - } - - /// - /// Add a value to the cache with an absolute time, e.g. 01/01/2020. - /// - /// The type of the key. - /// The type of the value. - /// The key. - /// The value. - /// The absolute date time when the cache should expire and be purged the value. - /// Normal priority will be purged on low memory warning. - public void Add(TKey key, TValue value, DateTime absoluteExpiry, CacheItemPriority priority = CacheItemPriority.Normal) - { - if (absoluteExpiry < DateTime.Now) - { - return; - } - - var diff = absoluteExpiry - DateTime.Now; - Add(key, value, diff, priority, false); - } - - /// - /// Gets a value from the cache for specified key. - /// - /// The type of the key. - /// The type of the value. - /// The key. - /// - /// If the key exists in the cache then the value is returned, if the key does not exist then null is returned. - /// - public TValue Get(TKey key) - { - try - { - var cacheItem = _cache[key]; - - if (cacheItem.RelativeExpiry.HasValue) - _slidingTime[key].Slide(); - - return (TValue)cacheItem.Value; - } - catch (Exception) - { - return default(TValue); - } - } - - /// - /// Remove a value from the cache for specified key. - /// - /// The type of the key. - /// The key. - public void Remove(TKey key) - { - if (!Equals(key, null)) - { - CacheItem cacheItem; - _cache.TryRemove(key, out cacheItem); - - SlidingDetails slidingDetails; - _slidingTime.TryRemove(key, out slidingDetails); - - KeyRemoved?.Invoke(key, new EventArgs()); - } - } - - /// - /// Clears the contents of the cache. - /// - public void Clear() - { - _cache.Clear(); - _slidingTime.Clear(); - } - - /// - /// Gets an enumerator for keys of a specific type. - /// - /// The type of the key. - /// - /// Returns an enumerator for keys of a specific type. - /// - public IEnumerable Keys() - { - return _cache.Keys.Where(k => k.GetType() == typeof(TKey)).Cast().ToList(); - } - - /// - /// Gets an enumerator for all the keys - /// - /// - /// Returns an enumerator for all the keys. - /// - public IEnumerable Keys() - { - return _cache.Keys.ToList(); - } - - /// - /// Gets the total count of items in cache - /// - /// - /// -1 if failed - /// - public int Count() - { - return _cache.Keys.Count; - } - - /// - /// Purges all cache item with normal priorities. - /// - /// - /// Number of items removed (-1 if failed) - /// - public int PurgeNormalPriorities() - { - var keysToRemove = (from cacheItem in _cache where cacheItem.Value.Priority == CacheItemPriority.Normal select cacheItem.Key).ToList(); - - CacheItem item; - return keysToRemove.Count(key => _cache.TryRemove(key, out item)); - - } - - /// - /// Determines whether [contains] [the specified key]. - /// - /// The key. - /// - public bool Contains(object key) - { - return this._cache.ContainsKey(key); - } - - #endregion - - #region Private class helper - - private void Add(TKey key, TValue value, TimeSpan timeSpan, CacheItemPriority priority, bool isSliding) - { - // add to cache - _cache.TryAdd(key, new CacheItem(value, priority, ((isSliding) ? timeSpan : (TimeSpan?)null))); - - // keep sliding track - if (isSliding) - { - _slidingTime.TryAdd(key, new SlidingDetails(timeSpan)); - } - - StartObserving(key, timeSpan); - } - - private void StartObserving(TKey key, TimeSpan timeSpan) - { - Observable.Timer(timeSpan) - .Finally(() => - { - // on finished - GC.Collect(); - GC.WaitForPendingFinalizers(); - }) - // on next - .Subscribe(x => TryPurgeItem(key), - exception => - { - // on error: Purge Failed with exception.Message - }); - } - - private void TryPurgeItem(TKey key) - { - if (_slidingTime.ContainsKey(key)) - { - TimeSpan tryAfter; - if (!_slidingTime[key].CanExpire(out tryAfter)) - { - // restart observing - StartObserving(key, tryAfter); - return; - } - } - - Remove(key); - } - - #endregion - } -} diff --git a/src/ServiceConnect.Persistance.InMemory/ICacheProvider.cs b/src/ServiceConnect.Persistance.InMemory/ICacheProvider.cs deleted file mode 100644 index 73739dbbd..000000000 --- a/src/ServiceConnect.Persistance.InMemory/ICacheProvider.cs +++ /dev/null @@ -1,100 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using System.Threading.Tasks; - -namespace ServiceConnect.Persistance.InMemory -{ - /// - /// Interface for caching providers - /// - public interface ICacheProvider - { - event EventHandler KeyRemoved; - - /// - /// Add a value to the cache with a relative expiry time, e.g 10 minutes. - /// - /// The type of the key. - /// The type of the value. - /// The key. - /// The value. - /// The sliding time when the key value pair should expire and be purged from the cache. - /// Normal priority will be purged on low memory warning. - void Add(TKey key, TValue value, TimeSpan slidingExpiry, CacheItemPriority priority = CacheItemPriority.Normal); - - /// - /// Add a value to the cache with an absolute time, e.g. 01/01/2020. - /// - /// The type of the key. - /// The type of the value. - /// The key. - /// The value. - /// The absolute date time when the cache should expire and be purged the value. - /// Normal priority will be purged on low memory warning. - void Add(TKey key, TValue value, DateTime absoluteExpiry, CacheItemPriority priority = CacheItemPriority.Normal); - - /// - /// Gets a value from the cache for specified key. - /// - /// The type of the key. - /// The type of the value. - /// The key. - /// - /// If the key exists in the cache then the value is returned, if the key does not exist then null is returned. - /// - TValue Get(TKey key); - - /// - /// Remove a value from the cache for specified key. - /// - /// The type of the key. - /// The key. - void Remove(TKey key); - - /// - /// Clears the contents of the cache. - /// - void Clear(); - - /// - /// Gets an enumerator for keys of a specific type. - /// - /// The type of the key. - /// - /// Returns an enumerator for keys of a specific type. - /// - IEnumerable Keys(); - - /// - /// Gets an enumerator for all the keys - /// - /// - /// Returns an enumerator for all the keys. - /// - IEnumerable Keys(); - - /// - /// Gets the total count of items in cache - /// - /// - /// -1 if failed - /// - int Count(); - - /// - /// Purges all cache item with normal priorities. - /// - /// - /// Number of items removed (-1 if failed) - /// - int PurgeNormalPriorities(); - - /// - /// Determines whether [contains] [the specified key]. - /// - /// The key. - /// - bool Contains(object key); - } -} diff --git a/src/ServiceConnect.Persistance.InMemory/InMemoryAggregatorPersistor.cs b/src/ServiceConnect.Persistance.InMemory/InMemoryAggregatorPersistor.cs deleted file mode 100644 index 6ed972337..000000000 --- a/src/ServiceConnect.Persistance.InMemory/InMemoryAggregatorPersistor.cs +++ /dev/null @@ -1,117 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; -using System.Linq; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Persistance.InMemory -{ - public class InMemoryAggregatorPersistor : IAggregatorPersistor - { - //private static readonly ObjectCache Cache = MemoryCache.Default; - //readonly CacheItemPolicy _policy = new CacheItemPolicy { Priority = CacheItemPriority.Default }; - private readonly object _memoryCacheLock = new object(); - - private readonly ICacheProvider _provider = new CacheProvider(); - private readonly DateTime _absoluteExpiry = DateTime.Now.AddDays(2); - - /// - /// Constructor (parameters not used but needed) - /// - /// - /// - /// - public InMemoryAggregatorPersistor(string connectionString, string databaseName, string collectionName) - { } - - public void InsertData(object data, string name) - { - lock (_memoryCacheLock) - { - if (_provider.Contains(name)) - { - var cacheItem = _provider.Get(name); - ((IList>)cacheItem).Add(new MemoryData - { - Data = data - }); - } - else - { - _provider.Add(name, new List> - { - new MemoryData - { - Data = data - } - }, _absoluteExpiry); - } - } - } - - public IList GetData(string name) - { - lock (_memoryCacheLock) - { - if (_provider.Contains(name)) - { - var cacheItem = _provider.Get(name); - return ((List>)cacheItem).Select(x => x.Data).ToList(); - } - return new List(); - } - } - - public void RemoveData(string name, Guid correlationsId) - { - lock (_memoryCacheLock) - { - if (_provider.Contains(name)) - { - var cacheItem = (List>)_provider.Get(name); - var message = cacheItem.FirstOrDefault(x => ((Message)x.Data).CorrelationId == correlationsId); - cacheItem.Remove(message); - } - } - } - - public void RemoveAll(string name) - { - lock (_memoryCacheLock) - { - if (_provider.Contains(name)) - { - _provider.Remove(name); - } - } - } - - public int Count(string name) - { - lock (_memoryCacheLock) - { - if (_provider.Contains(name)) - { - var cacheItem = (List>)_provider.Get(name); - return cacheItem.Count; - } - return 0; - } - } - } -} diff --git a/src/ServiceConnect.Persistance.InMemory/InMemoryProcessManagerFinder.cs b/src/ServiceConnect.Persistance.InMemory/InMemoryProcessManagerFinder.cs deleted file mode 100644 index 94bb67c1e..000000000 --- a/src/ServiceConnect.Persistance.InMemory/InMemoryProcessManagerFinder.cs +++ /dev/null @@ -1,300 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; -using System.Linq; -using System.Linq.Expressions; -using System.Reflection; -using System.Threading; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Persistance.InMemory -{ - /// - /// InMemory implementation of IProcessManagerFinder for testing and rapid development - /// - public class InMemoryProcessManagerFinder : IProcessManagerFinder - { - //private static readonly ObjectCache Cache = MemoryCache.Default; - //readonly CacheItemPolicy _policy = new CacheItemPolicy { Priority = CacheItemPriority.Default }; - private readonly object _memoryCacheLock = new object(); - ReaderWriterLockSlim _readerWriterLock = new ReaderWriterLockSlim(); - - private ICacheProvider _provider = new CacheProvider(); - private DateTime _absoluteExpiry = DateTime.Now.AddDays(2); - - /// - /// Constructor (parameters not used but needed) - /// - /// - /// - public InMemoryProcessManagerFinder(string connectionString, string databaseName) - { } - - public event TimeoutInsertedDelegate TimeoutInserted; - - public IPersistanceData FindData(IProcessManagerPropertyMapper mapper, Message message) where T : class, IProcessManagerData - { - lock (_memoryCacheLock) - { - var mapping = mapper.Mappings.FirstOrDefault(m => m.MessageType == message.GetType()) ?? - mapper.Mappings.First(m => m.MessageType == typeof(Message)); - - - object msgPropValue = null; - - try - { - msgPropValue = mapping.MessageProp.Invoke(message); - } - catch - { - return null; - } - - if (null == msgPropValue) - { - throw new ArgumentException("Message property expression evaluates to null"); - } - - //Left - ParameterExpression pe = Expression.Parameter(typeof(MemoryData), "t"); - Expression left = Expression.Property(pe, typeof(MemoryData).GetTypeInfo().GetProperty("Data")); - foreach (var prop in mapping.PropertiesHierarchy.Reverse()) - { - left = Expression.Property(left, left.Type, prop.Key); - } - - //Right - Expression right = Expression.Constant(msgPropValue, msgPropValue.GetType()); - - Expression expression; - - try - { - expression = Expression.Equal(left, right); - } - catch (InvalidOperationException ex) - { - throw new Exception("Mapped incompatible types of ProcessManager Data and Message properties.", ex); - } - - Expression, bool>> lambda = Expression.Lambda, bool>>(expression, pe); - - // get all the relevant cache items - //var cacheItems = (from n in Cache.AsParallel() where n.Value.GetType() == typeof(MemoryData) select n.Value); - - IList cacheItems = new List(); - - foreach (var key in _provider.Keys()) - { - var value = _provider.Get(key.ToString()); - if (value.GetType() == typeof(MemoryData)) - { - cacheItems.Add(value); - } - } - - // convert to correct generic type - //var newCacheItems = Enumerable.ToList((from dynamic cacheItem in cacheItems select new MemoryData { Data = cacheItem.Data, Version = cacheItem.Version })); - var newCacheItems = Enumerable.ToList((from dynamic cacheItem in cacheItems select new MemoryData { Data = cacheItem.Data, Version = cacheItem.Version })); - // filter based of mapping criteria - MemoryData retval = newCacheItems.FirstOrDefault(lambda.Compile()); - - return retval; - } - } - - public void InsertData(IProcessManagerData data) - { - Type typeParameterType = data.GetType(); - - MethodInfo md = GetType().GetTypeInfo().GetMethods().First(m => m.Name == "GetMemoryData" && m.GetParameters()[0].Name == "data"); - //MethodInfo genericMd = md.MakeGenericMethod(typeParameterType); - MethodInfo genericMd = md.MakeGenericMethod(typeof(IProcessManagerData)); - - lock (_memoryCacheLock) - { - var memoryData = genericMd.Invoke(this, new object[] {data}); - - string key = data.CorrelationId.ToString(); - - //if (!Cache.Contains(key)) - //{ - // Cache.Set(key, memoryData, _policy); - //} - //else - //{ - // throw new ArgumentException(string.Format("ProcessManagerData with CorrelationId {0} already exists in the cache.", key)); - //} - - if (!_provider.Contains(key)) - { - _provider.Add(key, memoryData, _absoluteExpiry); - } - else - { - throw new ArgumentException(string.Format("ProcessManagerData with CorrelationId {0} already exists in the cache.", key)); - } - } - } - - public MemoryData
GetMemoryData
(DT data) - { - var memoryData = new MemoryData
- { - Data = data, - Version = 1, - Id = Guid.NewGuid() - }; - - return memoryData; - } - - public void UpdateData(IPersistanceData data) where T : class, IProcessManagerData - { - lock (_memoryCacheLock) - { - string error = null; - var newData = (MemoryData) data; - string key = data.Data.CorrelationId.ToString(); - - //if (Cache.Contains(key)) - if (_provider.Contains(key)) - { - //var currentVersion = ((MemoryData)(Cache.Get(key))).Version; - var currentVersion = ((MemoryData)(_provider.Get(key))).Version; - - var updatedData = new MemoryData - { - Data = data.Data, - Version = newData.Version + 1 - }; - - if (currentVersion == newData.Version) - { - //Cache.Set(key, updatedData, _policy); - _provider.Remove(key); - _provider.Add(key, updatedData, _absoluteExpiry); - } - else - { - error = string.Format("Possible Concurrency Error. ProcessManagerData with CorrelationId {0} and Version {1} could not be updated.", key, currentVersion); - } - } - else - { - error = string.Format("ProcessManagerData with CorrelationId {0} does not exist in memory.", key); - } - - if (!string.IsNullOrEmpty(error)) - { - throw new ArgumentException(error); - } - } - } - - public void DeleteData(IPersistanceData persistanceData) where T : class, IProcessManagerData - { - lock (_memoryCacheLock) - { - string key = persistanceData.Data.CorrelationId.ToString(); - - //Cache.Remove(key); - _provider.Remove(key); - } - } - - public void InsertTimeout(TimeoutData timeoutData) - { - lock (_memoryCacheLock) - { - string key = timeoutData.Id.ToString(); - - //if (!Cache.Contains(key)) - if (!_provider.Contains(key)) - { - //Cache.Set(key, timeoutData, _policy); - _provider.Add(key, timeoutData, _absoluteExpiry); - } - else - { - throw new ArgumentException(string.Format("TimeoutData with Id {0} already exists in the cache.", key)); - } - } - - if (TimeoutInserted != null) - { - TimeoutInserted(timeoutData.Time); - } - } - - public TimeoutsBatch GetTimeoutsBatch() - { - var retval = new TimeoutsBatch { DueTimeouts = new List() }; - - DateTime utcNow = DateTime.UtcNow; - - var nextQueryTime = DateTime.MaxValue; - - lock (_memoryCacheLock) - { - //var cacheItems = (from n in Cache.AsParallel() where n.Value.GetType() == typeof (TimeoutData) select new { n.Value, n.Key }); - - IDictionary cacheItems = new Dictionary(); - - foreach (var key in _provider.Keys()) - { - var value = _provider.Get(key.ToString()); - if (value.GetType() == typeof(MemoryData)) - { - cacheItems.Add(key.ToString(), value); - } - } - - foreach (var data in cacheItems) - { - var timeoutData = (TimeoutData)data.Value; - if (timeoutData.Time <= utcNow) - { - retval.DueTimeouts.Add(timeoutData); - } - - if (timeoutData.Time > utcNow && timeoutData.Time < nextQueryTime) - { - nextQueryTime = timeoutData.Time; - } - } - } - - if (nextQueryTime == DateTime.MaxValue) - { - nextQueryTime = utcNow.AddMinutes(1); - } - - retval.NextQueryTime = nextQueryTime; - - return retval; - } - - public void RemoveDispatchedTimeout(Guid id) - { - //Cache.Remove(id.ToString()); - _provider.Remove(id.ToString()); - } - } -} diff --git a/src/ServiceConnect.Persistance.InMemory/MemoryData.cs b/src/ServiceConnect.Persistance.InMemory/MemoryData.cs deleted file mode 100644 index ab7bdef79..000000000 --- a/src/ServiceConnect.Persistance.InMemory/MemoryData.cs +++ /dev/null @@ -1,28 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Persistance.InMemory -{ - public class MemoryData : IPersistanceData - { - public Guid Id { get; set; } - public int Version { get; set; } - public T Data { get; set; } - } -} diff --git a/src/ServiceConnect.Persistance.InMemory/Properties/AssemblyInfo.cs b/src/ServiceConnect.Persistance.InMemory/Properties/AssemblyInfo.cs deleted file mode 100644 index 5e0d08b68..000000000 --- a/src/ServiceConnect.Persistance.InMemory/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,19 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("ServiceConnect.Persistance.InMemory")] -[assembly: AssemblyTrademark("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("88ed4e66-4f8f-4567-a0dc-2b02b0c45952")] diff --git a/src/ServiceConnect.Persistance.InMemory/ServiceConnect.Persistance.InMemory.csproj b/src/ServiceConnect.Persistance.InMemory/ServiceConnect.Persistance.InMemory.csproj deleted file mode 100644 index 2105a9091..000000000 --- a/src/ServiceConnect.Persistance.InMemory/ServiceConnect.Persistance.InMemory.csproj +++ /dev/null @@ -1,22 +0,0 @@ - - - - net6.0 - ServiceConnect.Persistance.InMemory - ServiceConnect.Persistance.InMemory - false - false - false - 5.0.0 - - - - - - - - - - - - diff --git a/src/ServiceConnect.Persistance.InMemory/SlidingDetails.cs b/src/ServiceConnect.Persistance.InMemory/SlidingDetails.cs deleted file mode 100644 index 3a9ffa51d..000000000 --- a/src/ServiceConnect.Persistance.InMemory/SlidingDetails.cs +++ /dev/null @@ -1,43 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using System.Threading.Tasks; - -namespace ServiceConnect.Persistance.InMemory -{ - public class SlidingDetails - { - /// - /// Initialise une nouvelle instance de class. - /// - /// The relative expiry. - public SlidingDetails(TimeSpan relativeExpiry) - { - RelativeExpiry = relativeExpiry; - Slide(); - } - - private TimeSpan RelativeExpiry { get; set; } - - private DateTime ExpireAt { get; set; } - - /// - /// Determines whether this instance can expire the specified try after. - /// - /// The try after. - /// - public bool CanExpire(out TimeSpan tryAfter) - { - tryAfter = (ExpireAt - DateTime.Now); - return (0 > tryAfter.Ticks); - } - - /// - /// Slides this instance. - /// - public void Slide() - { - ExpireAt = DateTime.Now.Add(RelativeExpiry); - } - } -} diff --git a/src/ServiceConnect.Persistance.MongoDb/MongoDBAggregatorPersistor.cs b/src/ServiceConnect.Persistance.MongoDb/MongoDBAggregatorPersistor.cs deleted file mode 100644 index 2bd176a7d..000000000 --- a/src/ServiceConnect.Persistance.MongoDb/MongoDBAggregatorPersistor.cs +++ /dev/null @@ -1,74 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; -using System.Linq; -using MongoDB.Driver; -using MongoDB.Driver.Builders; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Persistance.MongoDb -{ - public class MongoDBAggregatorPersistor : IAggregatorPersistor - { - private readonly MongoCollection> _collection; - - /// - /// Constructor - /// - /// - /// - /// - public MongoDBAggregatorPersistor(string connectionString, string databaseName, string collectionName) - { - var mongoClient = new MongoClient(connectionString); - MongoServer server = mongoClient.GetServer(); - var mongoDatabase = server.GetDatabase(databaseName); - _collection = mongoDatabase.GetCollection>(collectionName); - } - - public void InsertData(object data, string name) - { - _collection.Insert(new MongoDbData - { - Name = name, - Data = data, - Version = 1 - }); - } - - public IList GetData(string name) - { - return _collection.Find(Query>.EQ(x => x.Name, name)).Select(x => x.Data).ToList(); - } - - public void RemoveData(string name, Guid correlationsId) - { - _collection.Remove( - Query.And( - Query>.EQ(x => x.Name, name), - Query>.EQ(x => x.Data.CorrelationId, correlationsId) - ) - ); - } - - public int Count(string name) - { - return Convert.ToInt32(_collection.Count(Query>.EQ(x => x.Name, name))); - } - } -} diff --git a/src/ServiceConnect.Persistance.MongoDb/MongoDbData.cs b/src/ServiceConnect.Persistance.MongoDb/MongoDbData.cs deleted file mode 100644 index f42641724..000000000 --- a/src/ServiceConnect.Persistance.MongoDb/MongoDbData.cs +++ /dev/null @@ -1,29 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Persistance.MongoDb -{ - public class MongoDbData : IPersistanceData - { - public Guid Id { get; set; } - public int Version { get; set; } - public T Data { get; set; } - public string Name { get; set; } - } -} diff --git a/src/ServiceConnect.Persistance.MongoDb/MongoDbProcessManagerFinder.cs b/src/ServiceConnect.Persistance.MongoDb/MongoDbProcessManagerFinder.cs deleted file mode 100644 index d7b361df1..000000000 --- a/src/ServiceConnect.Persistance.MongoDb/MongoDbProcessManagerFinder.cs +++ /dev/null @@ -1,249 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; -using System.Linq; -using System.Linq.Expressions; -using MongoDB.Driver; -using MongoDB.Driver.Builders; -using ServiceConnect.Interfaces; -using System.Reflection; - -namespace ServiceConnect.Persistance.MongoDb -{ - /// - /// MonoDb implementation of IProcessManagerFinder. - /// - public class MongoDbProcessManagerFinder : IProcessManagerFinder - { - private readonly MongoDatabase _mongoDatabase; - private const string TimeoutsCollectionName = "Timeouts"; - - public event TimeoutInsertedDelegate TimeoutInserted; - - public MongoDbProcessManagerFinder(string connectionString, string databaseName) - { - var mongoClient = new MongoClient(connectionString); - MongoServer server = mongoClient.GetServer(); - _mongoDatabase = server.GetDatabase(databaseName); - } - - /// - /// Find existing instance of ProcessManager - /// - /// - /// - /// - /// - public IPersistanceData FindData(IProcessManagerPropertyMapper mapper, Message message) where T : class, IProcessManagerData - { - var mapping = mapper.Mappings.FirstOrDefault(m => m.MessageType == message.GetType()) ?? - mapper.Mappings.First(m => m.MessageType == typeof(Message)); - - var collectionName = typeof(T).Name; - MongoCollection collection = _mongoDatabase.GetCollection(collectionName); - collection.CreateIndex("CorrelationId"); - - object msgPropValue = null; - - try - { - msgPropValue = mapping.MessageProp.Invoke(message); - } - catch - { - return null; - } - - if (null == msgPropValue) - { - throw new ArgumentException("Message property expression evaluates to null"); - } - - //Left - ParameterExpression pe = Expression.Parameter(typeof(MongoDbData), "t"); - Expression left = Expression.Property(pe, typeof(MongoDbData).GetTypeInfo().GetProperty("Data")); - foreach (var prop in mapping.PropertiesHierarchy.Reverse()) - { - left = Expression.Property(left, left.Type, prop.Key); - } - - //Right - Expression right = Expression.Constant(msgPropValue, msgPropValue.GetType()); - - Expression expression; - - try - { - expression = Expression.Equal(left, right); - } - catch (InvalidOperationException ex) - { - throw new Exception("Mapped incompatible types of ProcessManager Data and Message properties.", ex); - } - - var lambda = Expression.Lambda, bool>>(expression, pe); - IMongoQuery query = Query>.Where(lambda); - - return collection.FindOneAs>(query); - } - - /// - /// Create new instance of ProcessManager - /// When multiple threads try to create new ProcessManager instance, only the first one is allowed. - /// All subsequent threads will update data instead. - /// - /// - public void InsertData(IProcessManagerData data) - { - var collectionName = GetCollectionName(data); - - MongoCollection collection = _mongoDatabase.GetCollection(collectionName); - collection.CreateIndex("CorrelationId"); - - var mongoDbData = new MongoDbData - { - Data = data, - Version = 1, - Id = Guid.NewGuid() - }; - - collection.FindAndModify(Query.EQ("CorrelationId", mongoDbData.Data.CorrelationId), SortBy.Null, Update.Replace(mongoDbData), false, true); - } - - /// - /// Update data of existing ProcessManager. - /// - /// - /// - public void UpdateData(IPersistanceData persistanceData) where T : class, IProcessManagerData - { - var collectionName = GetCollectionName(persistanceData.Data); - - MongoCollection collection = _mongoDatabase.GetCollection(collectionName); - collection.CreateIndex("CorrelationId"); - - var versionData = (MongoDbData)persistanceData; - - int currentVersion = versionData.Version; - var query = Query.And(Query.EQ("Data.CorrelationId", versionData.Data.CorrelationId), Query.EQ("Version", currentVersion)); - versionData.Version += 1; - var result = collection.FindAndModify(query, SortBy.Null, Update.Replace(versionData)); - - if (result.ModifiedDocument == null) - throw new ArgumentException(string.Format("Possible Concurrency Error. ProcessManagerData with CorrelationId {0} and Version {1} could not be updated.", versionData.Data.CorrelationId, versionData.Version)); - } - - /// - /// Removes existing instance of ProcessManager from the database. - /// - /// - public void DeleteData(IPersistanceData persistanceData) where T : class, IProcessManagerData - { - var collectionName = GetCollectionName(persistanceData.Data); - - MongoCollection collection = _mongoDatabase.GetCollection(collectionName); - collection.CreateIndex("CorrelationId"); - - collection.Remove(Query.EQ("Data.CorrelationId", persistanceData.Data.CorrelationId)); - } - - public void InsertTimeout(TimeoutData timeoutData) - { - MongoCollection collection = _mongoDatabase.GetCollection(TimeoutsCollectionName); - collection.CreateIndex("Id"); - - collection.Insert(timeoutData); - - if (TimeoutInserted != null) - { - TimeoutInserted(timeoutData.Time); - } - } - - public TimeoutsBatch GetTimeoutsBatch() - { - var retval = new TimeoutsBatch {DueTimeouts = new List()}; - - MongoCollection collection = _mongoDatabase.GetCollection(TimeoutsCollectionName); - - DateTime utcNow = DateTime.UtcNow; - - // Find all the due timeouts and put a lock on each one to prevent multiple threads/processes getting hold of the same data. - bool doQuery = true; - while (doQuery) - { - var args = new FindAndModifyArgs - { - Query = Query.And(Query.EQ("Locked", false), Query.LTE("Time", utcNow)), - Update = Update.Set(c => c.Locked, true), - Upsert = false, - VersionReturned = FindAndModifyDocumentVersion.Original - }; - FindAndModifyResult result = collection.FindAndModify(args); - - if (result.ModifiedDocument == null) - { - doQuery = false; - } - else - { - retval.DueTimeouts.Add(result.GetModifiedDocumentAs()); - } - } - - // Get next query time - var nextQueryTime = DateTime.MaxValue; - var upcomingTimeoutsRes = collection.Find(Query.GT("Time", utcNow)); - foreach (TimeoutData upcomingTimeout in upcomingTimeoutsRes) - { - if (upcomingTimeout.Time < nextQueryTime) - { - nextQueryTime = upcomingTimeout.Time; - } - } - - if (nextQueryTime == DateTime.MaxValue) - { - nextQueryTime = utcNow.AddMinutes(1); - } - - retval.NextQueryTime = nextQueryTime; - - return retval; - } - - public void RemoveDispatchedTimeout(Guid id) - { - MongoCollection collection = _mongoDatabase.GetCollection(TimeoutsCollectionName); - - var args = new FindAndRemoveArgs - { - Query = Query.And(Query.EQ("Locked", true), Query.EQ("_id", id)) - }; - - collection.FindAndRemove(args); - } - - private static string GetCollectionName(T data) where T : class, IProcessManagerData - { - Type typeParameterType = data.GetType(); - var collectionName = typeParameterType.Name; - return collectionName; - } - } -} diff --git a/src/ServiceConnect.Persistance.MongoDb/Properties/AssemblyInfo.cs b/src/ServiceConnect.Persistance.MongoDb/Properties/AssemblyInfo.cs deleted file mode 100644 index c344ab2d0..000000000 --- a/src/ServiceConnect.Persistance.MongoDb/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,19 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("ServiceConnect.Persistance.MongoDb")] -[assembly: AssemblyTrademark("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("8de6cf47-db9c-4af9-8ef5-f58e1e79c8fd")] diff --git a/src/ServiceConnect.Persistance.MongoDb/ServiceConnect.Persistance.MongoDb.csproj b/src/ServiceConnect.Persistance.MongoDb/ServiceConnect.Persistance.MongoDb.csproj deleted file mode 100644 index 34b860901..000000000 --- a/src/ServiceConnect.Persistance.MongoDb/ServiceConnect.Persistance.MongoDb.csproj +++ /dev/null @@ -1,22 +0,0 @@ - - - - 4.0.0-pre - net6.0 - ServiceConnect.Persistance.MongoDb - ServiceConnect.Persistance.MongoDb - false - false - false - 5.0.0 - - - - - - - - - - - diff --git a/src/ServiceConnect.Persistance.MongoDb/ServiceConnect.Persistance.MongoDb.nuspec b/src/ServiceConnect.Persistance.MongoDb/ServiceConnect.Persistance.MongoDb.nuspec deleted file mode 100644 index ce48c051d..000000000 --- a/src/ServiceConnect.Persistance.MongoDb/ServiceConnect.Persistance.MongoDb.nuspec +++ /dev/null @@ -1,25 +0,0 @@ - - - - ServiceConnect.Persistance.MongoDb - 7.0.0 - ServiceConnect.Persistance.MongoDb - Jakub Pachansky,Tim Watson - Jakub Pachansky,Tim Watson - false - MongoDb implementation of IProcessManagerFinder. - en-GB - https://github.com/R-Suite/ServiceConnect - Copyright 2019 ServiceConnect. All rights reserved - ServiceConnect,RMessageBus,R,MessageBus,MessageBus Persistance,Persistance.MongoDb,R MongoDb,R MongoDb Persistance,MongoDb, MessageBus,Messaging,Message,Bus,Service - - - - - - - - - - - \ No newline at end of file diff --git a/src/ServiceConnect.Persistance.MongoDbSsl/MongoDBSslAggregatorPersistor.cs b/src/ServiceConnect.Persistance.MongoDbSsl/MongoDBSslAggregatorPersistor.cs deleted file mode 100644 index e1d9596a0..000000000 --- a/src/ServiceConnect.Persistance.MongoDbSsl/MongoDBSslAggregatorPersistor.cs +++ /dev/null @@ -1,180 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; -using System.Linq; -using System.Security.Cryptography.X509Certificates; -using MongoDB.Driver; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Persistance.MongoDbSsl -{ - public class MongoDBSslAggregatorPersistor : IAggregatorPersistor - { - private readonly IMongoCollection> _collection; - - /// - /// Constructor - /// - /// - /// - /// - public MongoDBSslAggregatorPersistor(string connectionString, string databaseName, string collectionName) - { - var connectionParts = connectionString.Split(','); - string nodes = string.Empty; - string username = string.Empty; - string password = string.Empty; - string certPath = string.Empty; - string userdb = string.Empty; - string cert = string.Empty; - string certPassword = string.Empty; - - foreach (string connectionPart in connectionParts) - { - var assignmentIndex = connectionPart.IndexOf('='); - var nameValue = connectionPart.Substring(0, assignmentIndex); - - switch (nameValue.ToLower()) - { - case "nodes": - nodes = connectionPart.Substring(assignmentIndex + 1); - break; - case "userdb": - userdb = connectionPart.Substring(assignmentIndex + 1); - break; - case "username": - username = connectionPart.Substring(assignmentIndex + 1); - break; - case "password": - password = connectionPart.Substring(assignmentIndex + 1); - break; - case "certpath": - certPath = connectionPart.Substring(assignmentIndex + 1); - break; - case "cert": - cert = connectionPart.Substring(assignmentIndex + 1); - break; - case "certpassword": - certPassword = connectionPart.Substring(assignmentIndex + 1); - break; - } - } - - var mongoNodes = nodes.Split(';'); - - List certs = null; - if (!string.IsNullOrEmpty(certPath)) - { - if (string.IsNullOrEmpty(certPassword)) - { - certs = new List - { - new X509Certificate2(certPath) - }; - } - else - { - certs = new List - { - new X509Certificate2(certPath, certPassword) - }; - } - - } - - if (!string.IsNullOrEmpty(cert)) - { - if (string.IsNullOrEmpty(certPassword)) - { - certs = new List - { - new X509Certificate2(Convert.FromBase64String(cert)) - }; - } - else - { - certs = new List - { - new X509Certificate2(Convert.FromBase64String(cert), certPassword) - }; - } - } - - MongoCredential credential = null; - if (!string.IsNullOrEmpty(username)) - { - string db = "admin"; - - if (!string.IsNullOrEmpty(userdb)) - { - db = userdb; - } - - credential = MongoCredential.CreateCredential(db, username, password); - } - - var settings = new MongoClientSettings - { - UseTls = true, - Credential = credential, - ConnectionMode = ConnectionMode.Automatic, - Servers = mongoNodes.Select(x => new MongoServerAddress(x)), - SslSettings = new SslSettings - { - ClientCertificates = certs, - ClientCertificateSelectionCallback = (sender, host, certificates, certificate, issuers) => certificates[0], - CheckCertificateRevocation = false - } - }; - - var client = new MongoClient(settings); - var mongoDatabase = client.GetDatabase(databaseName); - _collection = mongoDatabase.GetCollection>(collectionName); - } - - public void InsertData(object data, string name) - { - _collection.InsertOne(new MongoDbSslData - { - Name = name, - Data = data, - Version = 1 - }); - } - - public IList GetData(string name) - { - var filter = Builders>.Filter.Eq(_ => _.Name, name); - return _collection.Find(filter).ToList().Select(x => x.Data).ToList(); - } - - public void RemoveData(string name, Guid correlationsId) - { - var filter = Builders>.Filter.Eq(_ => _.Name, name) & - Builders>.Filter.Eq("Data.CorrelationId", correlationsId); - - _collection.DeleteMany(filter); - } - - public int Count(string name) - { - var filter = Builders>.Filter.Eq(_ => _.Name, name); - return Convert.ToInt32(_collection.CountDocuments(filter)); - } - } -} diff --git a/src/ServiceConnect.Persistance.MongoDbSsl/MongoDbSslData.cs b/src/ServiceConnect.Persistance.MongoDbSsl/MongoDbSslData.cs deleted file mode 100644 index bc8f481c7..000000000 --- a/src/ServiceConnect.Persistance.MongoDbSsl/MongoDbSslData.cs +++ /dev/null @@ -1,14 +0,0 @@ -using MongoDB.Bson.Serialization.Attributes; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Persistance.MongoDbSsl -{ - [BsonIgnoreExtraElements] - public class MongoDbSslData : IPersistanceData - { - public int Version { get; set; } - public T Data { get; set; } - public string Name { get; set; } - public bool Locked { get; set; } - } -} diff --git a/src/ServiceConnect.Persistance.MongoDbSsl/MongoDbSslProcessManagerFinder.cs b/src/ServiceConnect.Persistance.MongoDbSsl/MongoDbSslProcessManagerFinder.cs deleted file mode 100644 index fde4ad92d..000000000 --- a/src/ServiceConnect.Persistance.MongoDbSsl/MongoDbSslProcessManagerFinder.cs +++ /dev/null @@ -1,367 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; -using System.Linq; -using System.Linq.Expressions; -using System.Security.Cryptography.X509Certificates; -using MongoDB.Driver; -using ServiceConnect.Interfaces; -using System.Reflection; - -namespace ServiceConnect.Persistance.MongoDbSsl -{ - /// - /// MonoDb implementation of IProcessManagerFinder. - /// - public class MongoDbSslProcessManagerFinder : IProcessManagerFinder - { - private readonly IMongoDatabase _mongoDatabase; - private const string TimeoutsCollectionName = "Timeouts"; - - public MongoDbSslProcessManagerFinder(string connectionString, string databaseName) - { - var connectionParts = connectionString.Split(','); - string nodes = string.Empty; - string username = string.Empty; - string password = string.Empty; - string certPath = string.Empty; - string userdb = string.Empty; - string cert = string.Empty; - string certPassword = string.Empty; - - foreach (string connectionPart in connectionParts) - { - var assignmentIndex = connectionPart.IndexOf('='); - var nameValue = connectionPart.Substring(0, assignmentIndex); - - switch (nameValue.ToLower()) - { - case "nodes": - nodes = connectionPart.Substring(assignmentIndex + 1); - break; - case "userdb": - userdb = connectionPart.Substring(assignmentIndex + 1); - break; - case "username": - username = connectionPart.Substring(assignmentIndex + 1); - break; - case "password": - password = connectionPart.Substring(assignmentIndex + 1); - break; - case "certpath": - certPath = connectionPart.Substring(assignmentIndex + 1); - break; - case "cert": - cert = connectionPart.Substring(assignmentIndex + 1); - break; - case "certpassword": - certPassword = connectionPart.Substring(assignmentIndex + 1); - break; - } - } - - var mongoNodes = nodes.Split(';'); - - List certs = null; - if (!string.IsNullOrEmpty(certPath)) - { - if (string.IsNullOrEmpty(certPassword)) - { - certs = new List - { - new X509Certificate2(certPath) - }; - } - else - { - certs = new List - { - new X509Certificate2(certPath, certPassword) - }; - } - - } - - if (!string.IsNullOrEmpty(cert)) - { - if (string.IsNullOrEmpty(certPassword)) - { - certs = new List - { - new X509Certificate2(Convert.FromBase64String(cert)) - }; - } - else - { - certs = new List - { - new X509Certificate2(Convert.FromBase64String(cert), certPassword) - }; - } - } - - MongoCredential credential = null; - if (!string.IsNullOrEmpty(username)) - { - string db = "admin"; - - if (!string.IsNullOrEmpty(userdb)) - { - db = userdb; - } - - credential = MongoCredential.CreateCredential(db, username, password); - } - - var settings = new MongoClientSettings - { - UseTls = true, - Credential = credential, - ConnectionMode = ConnectionMode.Automatic, - Servers = mongoNodes.Select(x => new MongoServerAddress(x)), - SslSettings = certs == null ? null : new SslSettings - { - ClientCertificates = certs, - ClientCertificateSelectionCallback = (sender, host, certificates, certificate, issuers) => certificates[0], - CheckCertificateRevocation = false - } - }; - - var client = new MongoClient(settings); - _mongoDatabase = client.GetDatabase(databaseName); - } - - public event TimeoutInsertedDelegate TimeoutInserted; - - /// - /// Find existing instance of ProcessManager - /// - /// - /// - /// - /// - public IPersistanceData FindData(IProcessManagerPropertyMapper mapper, Message message) where T : class, IProcessManagerData - { - var mapping = mapper.Mappings.FirstOrDefault(m => m.MessageType == message.GetType()) ?? - mapper.Mappings.First(m => m.MessageType == typeof(Message)); - - var collectionName = typeof(T).Name; - IMongoCollection> collection = _mongoDatabase.GetCollection>(collectionName); - var indexOptions = new CreateIndexOptions(); - var indexKeys = Builders>.IndexKeys.Ascending("Data.CorrelationId"); - var indexModel = new CreateIndexModel>(indexKeys, indexOptions); - collection.Indexes.CreateOne(indexModel); - - object msgPropValue = null; - - try - { - msgPropValue = mapping.MessageProp.Invoke(message); - } - catch - { - return null; - } - - if (null == msgPropValue) - { - throw new ArgumentException("Message property expression evaluates to null"); - } - - //Left - ParameterExpression pe = Expression.Parameter(typeof(MongoDbSslData), "t"); - Expression left = Expression.Property(pe, typeof(MongoDbSslData).GetTypeInfo().GetProperty("Data")); - foreach (var prop in mapping.PropertiesHierarchy.Reverse()) - { - left = Expression.Property(left, left.Type, prop.Key); - } - - //Right - Expression right = Expression.Constant(msgPropValue, msgPropValue.GetType()); - - Expression expression; - - try - { - expression = Expression.Equal(left, right); - } - catch (InvalidOperationException ex) - { - throw new Exception("Mapped incompatible types of ProcessManager Data and Message properties.", ex); - } - - Expression, bool>> lambda = Expression.Lambda, bool>>(expression, pe); - - return collection.AsQueryable().FirstOrDefault(lambda); - } - - /// - /// Create new instance of ProcessManager - /// When multiple threads try to create new ProcessManager instance, only the first one is allowed. - /// All subsequent threads will update data instead. - /// - /// - public void InsertData(IProcessManagerData data) - { - var collectionName = GetCollectionName(data); - - IMongoCollection> collection = _mongoDatabase.GetCollection>(collectionName); - var indexOptions = new CreateIndexOptions(); - var indexKeys = Builders>.IndexKeys.Ascending("Data.CorrelationId"); - var indexModel = new CreateIndexModel>(indexKeys, indexOptions); - collection.Indexes.CreateOne(indexModel); - - var mongoDbData = new MongoDbSslData - { - Data = data, - Version = 1, - //Id = Guid.NewGuid() - }; - - var filter = Builders>.Filter.Eq("Data.CorrelationId", mongoDbData.Data.CorrelationId); - collection.ReplaceOne(filter, mongoDbData, new ReplaceOptions { IsUpsert = true}); - } - - /// - /// Update data of existing ProcessManager. - /// - /// - /// - public void UpdateData(IPersistanceData persistanceData) where T : class, IProcessManagerData - { - var collectionName = GetCollectionName(persistanceData.Data); - - IMongoCollection> collection = _mongoDatabase.GetCollection>(collectionName); - var indexOptions = new CreateIndexOptions(); - var indexKeys = Builders>.IndexKeys.Ascending("Data.CorrelationId"); - var indexModel = new CreateIndexModel>(indexKeys, indexOptions); - collection.Indexes.CreateOne(indexModel); - - var versionData = (MongoDbSslData)persistanceData; - - int currentVersion = versionData.Version; - var filter = - Builders>.Filter.Eq("Data.CorrelationId", versionData.Data.CorrelationId) & - Builders>.Filter.Eq(_ => _.Version, currentVersion); - versionData.Version += 1; - var result = collection.ReplaceOne(filter, versionData); - - if (result.IsAcknowledged && result.ModifiedCount == 0) - throw new ArgumentException(string.Format("Possible Concurrency Error. ProcessManagerData with CorrelationId {0} and Version {1} could not be updated.", versionData.Data.CorrelationId, versionData.Version)); - } - - /// - /// Removes existing instance of ProcessManager from the database. - /// - /// - public void DeleteData(IPersistanceData persistanceData) where T : class, IProcessManagerData - { - var collectionName = GetCollectionName(persistanceData.Data); - - IMongoCollection> collection = _mongoDatabase.GetCollection>(collectionName); - var indexOptions = new CreateIndexOptions(); - var indexKeys = Builders>.IndexKeys.Ascending("Data.CorrelationId"); - var indexModel = new CreateIndexModel>(indexKeys, indexOptions); - collection.Indexes.CreateOne(indexModel); - - var filter = Builders>.Filter.Eq("Data.CorrelationId", persistanceData.Data.CorrelationId); - collection.DeleteOne(filter); - } - - public void InsertTimeout(TimeoutData timeoutData) - { - IMongoCollection collection = _mongoDatabase.GetCollection(TimeoutsCollectionName); - var indexOptions = new CreateIndexOptions(); - var indexKeys = Builders.IndexKeys.Ascending("Id"); - var indexModel = new CreateIndexModel(indexKeys, indexOptions); - collection.Indexes.CreateOne(indexModel); - - collection.InsertOne(timeoutData); - - TimeoutInserted?.Invoke(timeoutData.Time); - } - - public TimeoutsBatch GetTimeoutsBatch() - { - var retval = new TimeoutsBatch { DueTimeouts = new List() }; - - IMongoCollection collection = _mongoDatabase.GetCollection(TimeoutsCollectionName); - - DateTime utcNow = DateTime.UtcNow; - - // Find all the due timeouts and put a lock on each one to prevent multiple threads/processes getting hold of the same data. - bool doQuery = true; - while (doQuery) - { - var filter1 = Builders.Filter.Eq(_ => _.Locked, false) & - Builders.Filter.Lte(_ => _.Time, utcNow); - - var update = Builders.Update.Set(_ => _.Locked, true); - var result = collection.UpdateOne(filter1, update); - - if (result.ModifiedCount == 0) - { - doQuery = false; - } - else - { - var filter2 = Builders.Filter.Eq(s => s.Id, result.UpsertedId); - retval.DueTimeouts.Add(collection.Find(filter2).First()); - } - } - - // Get next query time - var nextQueryTime = DateTime.MaxValue; - var filter = Builders.Filter.Eq(_=>_.Time, utcNow); - var upcomingTimeoutsRes = collection.Find(filter); - foreach (TimeoutData upcomingTimeout in upcomingTimeoutsRes.ToList()) - { - if (upcomingTimeout.Time < nextQueryTime) - { - nextQueryTime = upcomingTimeout.Time; - } - } - - if (nextQueryTime == DateTime.MaxValue) - { - nextQueryTime = utcNow.AddMinutes(1); - } - - retval.NextQueryTime = nextQueryTime; - - return retval; - } - - public void RemoveDispatchedTimeout(Guid id) - { - IMongoCollection collection = _mongoDatabase.GetCollection(TimeoutsCollectionName); - - var filter = Builders.Filter.Eq(_ => _.Locked, true) & - Builders.Filter.Lte(_ => _.Id, id); - - collection.DeleteOne(filter); - } - - private static string GetCollectionName(T data) where T : class, IProcessManagerData - { - Type typeParameterType = data.GetType(); - var collectionName = typeParameterType.Name; - return collectionName; - } - } -} diff --git a/src/ServiceConnect.Persistance.MongoDbSsl/Properties/AssemblyInfo.cs b/src/ServiceConnect.Persistance.MongoDbSsl/Properties/AssemblyInfo.cs deleted file mode 100644 index bff0a9636..000000000 --- a/src/ServiceConnect.Persistance.MongoDbSsl/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,19 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("ServiceConnect.Persistance.MongoDbSsl")] -[assembly: AssemblyTrademark("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("3369a669-3ec1-4f3b-9d00-299155096927")] diff --git a/src/ServiceConnect.Persistance.MongoDbSsl/ServiceConnect.Persistance.MongoDbSsl.csproj b/src/ServiceConnect.Persistance.MongoDbSsl/ServiceConnect.Persistance.MongoDbSsl.csproj deleted file mode 100644 index 450d8021d..000000000 --- a/src/ServiceConnect.Persistance.MongoDbSsl/ServiceConnect.Persistance.MongoDbSsl.csproj +++ /dev/null @@ -1,24 +0,0 @@ - - - - net6.0 - ServiceConnect.Persistance.MongoDbSsl - ServiceConnect.Persistance.MongoDbSsl - false - false - false - 7.0.0 - true - - - - - - - - - 2.19.2 - - - - diff --git a/src/ServiceConnect.Persistance.MongoDbSsl/ServiceConnect.Persistance.MongoDbSsl.nuspec b/src/ServiceConnect.Persistance.MongoDbSsl/ServiceConnect.Persistance.MongoDbSsl.nuspec deleted file mode 100644 index 64457a76f..000000000 --- a/src/ServiceConnect.Persistance.MongoDbSsl/ServiceConnect.Persistance.MongoDbSsl.nuspec +++ /dev/null @@ -1,25 +0,0 @@ - - - - ServiceConnect.Persistance.MongoDbSsl - 7.0.0 - ServiceConnect.Persistance.MongoDbSsl - Jakub Pachansky,Tim Watson - Jakub Pachansky,Tim Watson - false - MongoDb SSL implementation of IProcessManagerFinder. - en-GB - https://github.com/R-Suite/ServiceConnect - Copyright 2022 ServiceConnect. All rights reserved - ServiceConnect,RMessageBus,R,MessageBus,MessageBus Persistance,Persistance.MongoDb,R MongoDb,R MongoDb Persistance,MongoDb, MessageBus,Messaging,Message,Bus,Service - - - - - - - - - - - \ No newline at end of file diff --git a/src/ServiceConnect.Persistance.SqlServer/Properties/AssemblyInfo.cs b/src/ServiceConnect.Persistance.SqlServer/Properties/AssemblyInfo.cs deleted file mode 100644 index 5d09796da..000000000 --- a/src/ServiceConnect.Persistance.SqlServer/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,19 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("ServiceConnect.Persistance.SqlServer")] -[assembly: AssemblyTrademark("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("dd2dee20-f9c3-4826-8a7e-5741b555be59")] diff --git a/src/ServiceConnect.Persistance.SqlServer/ServiceConnect.Persistance.SqlServer.csproj b/src/ServiceConnect.Persistance.SqlServer/ServiceConnect.Persistance.SqlServer.csproj deleted file mode 100644 index ec76e390e..000000000 --- a/src/ServiceConnect.Persistance.SqlServer/ServiceConnect.Persistance.SqlServer.csproj +++ /dev/null @@ -1,27 +0,0 @@ - - - - net6.0 - ServiceConnect.Persistance.SqlServer - ServiceConnect.Persistance.SqlServer - false - false - false - 5.0.0 - - - - - - - - - - - - - - - - - diff --git a/src/ServiceConnect.Persistance.SqlServer/SqlServerData.cs b/src/ServiceConnect.Persistance.SqlServer/SqlServerData.cs deleted file mode 100644 index 0c122374c..000000000 --- a/src/ServiceConnect.Persistance.SqlServer/SqlServerData.cs +++ /dev/null @@ -1,29 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Persistance.SqlServer -{ - public class SqlServerData : IPersistanceData - { - public Guid Id { get; set; } - public int Version { get; set; } - - public T Data { get; set; } - } -} diff --git a/src/ServiceConnect.Persistance.SqlServer/SqlServerProcessManagerFinder.cs b/src/ServiceConnect.Persistance.SqlServer/SqlServerProcessManagerFinder.cs deleted file mode 100644 index 7b6bf96e0..000000000 --- a/src/ServiceConnect.Persistance.SqlServer/SqlServerProcessManagerFinder.cs +++ /dev/null @@ -1,500 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; -using System.Data; -using System.Data.SqlClient; -using System.IO; -using System.Linq; -using System.Text; -using System.Xml; -using System.Xml.Serialization; -using System.Xml.XPath; -using Newtonsoft.Json; -using ServiceConnect.Interfaces; -using IsolationLevel = System.Data.IsolationLevel; - -namespace ServiceConnect.Persistance.SqlServer -{ - /// - /// Sql Server implementation of IProcessManagerFinder. - /// - public class SqlServerProcessManagerFinder : IProcessManagerFinder - { - private readonly string _connectionString; - private readonly int _commandTimeout = 30; - private const string TimeoutsTableName = "Timeouts"; - - /// - /// Default constructor - /// - /// - /// - public SqlServerProcessManagerFinder(string connectionString, string databaseName) - { - _connectionString = connectionString; - } - - /// - /// Constructor allows passing . - /// Used primarily for testing. - /// - /// - /// - /// - public SqlServerProcessManagerFinder(string connectionString, string databaseName, int commandTimeout) - { - _connectionString = connectionString; - _commandTimeout = commandTimeout; - } - - public event TimeoutInsertedDelegate TimeoutInserted; - - /// - /// Find existing instance of ProcessManager - /// FindData() and UpdateData() are part of the same transaction. - /// FindData() opens new connection and transaction. - /// UPDLOCK is placed onf the relevant row to prevent reads until the transaction is commited in UpdateData - /// - /// - /// - public IPersistanceData FindData(IProcessManagerPropertyMapper mapper, Message message) where T : class, IProcessManagerData - { - var mapping = mapper.Mappings.FirstOrDefault(m => m.MessageType == message.GetType()) ?? - mapper.Mappings.First(m => m.MessageType == typeof(Message)); - - string tableName = typeof(T).Name; - - var sbXPath = new StringBuilder(); - sbXPath.Append("(/" + tableName); - foreach (var prop in mapping.PropertiesHierarchy.Reverse()) - { - sbXPath.Append("/" + prop.Key); - } - sbXPath.Append(")[1]"); - - XPathExpression xPathExpression = XPathExpression.Compile(sbXPath.ToString()); - - // Message Propery Value - object msgPropValue = mapping.MessageProp.Invoke(message); - - SqlServerData result = null; - - if (!GetTableNameExists(tableName)) - return null; - - using (var sqlConnection = new SqlConnection(_connectionString)) - { - sqlConnection.Open(); - - using (var command = new SqlCommand()) - { - command.Connection = sqlConnection; - command.CommandTimeout = _commandTimeout; - command.CommandText = string.Format(@"SELECT * FROM {0} WHERE DataXml.value('{1}', 'nvarchar(max)') = @val", tableName, xPathExpression.Expression); - command.Parameters.Add(new SqlParameter {ParameterName = "@val", Value = msgPropValue}); - - try - { - var reader = command.ExecuteReader(CommandBehavior.SingleResult); - - if (reader.HasRows) - { - reader.Read(); - - var serializer = new XmlSerializer(typeof (T)); - object res; - using (TextReader r = new StringReader(reader["DataXml"].ToString())) - { - res = serializer.Deserialize(r); - } - - result = new SqlServerData - { - Id = (Guid) reader["Id"], - Data = (T) res, - Version = (int) reader["Version"] - }; - } - - reader.Dispose(); - } - finally - { - sqlConnection.Close(); - } - } - } - - return result; - } - - /// - /// Create new instance of ProcessManager - /// When multiple threads try to create new ProcessManager instance, only the first one is allowed. - /// All subsequent threads will update data instead. - /// - /// - public void InsertData(IProcessManagerData data) - { - string tableName = GetTableName(data); - - var sqlServerData = new SqlServerData - { - Data = data, - Version = 1, - Id = data.CorrelationId - }; - - var xmlSerializer = new XmlSerializer(data.GetType()); - var sww = new StringWriter(); - XmlWriter writer = XmlWriter.Create(sww); - xmlSerializer.Serialize(writer, data); - var dataXml = sww.ToString(); - - using (var sqlConnection = new SqlConnection(_connectionString)) - { - sqlConnection.Open(); - - using (var dbTransaction = sqlConnection.BeginTransaction(IsolationLevel.ReadCommitted)) - { - // Insert if doesn't exist, else update (only the first one is allowed) - string upsertSql = string.Format(@"if exists (select * from {0} with (updlock,serializable) WHERE Id = @Id) - begin - UPDATE {0} - SET DataXml = @DataXml, Version = @Version - WHERE Id = @Id - end - else - begin - INSERT {0} (Id, Version, DataXml) - VALUES (@Id,@Version,@DataXml) - end", tableName); - - - using (var command = new SqlCommand(upsertSql)) - { - command.Connection = sqlConnection; - command.Transaction = dbTransaction; - command.Parameters.Add("@Id", SqlDbType.UniqueIdentifier).Value = data.CorrelationId; - command.Parameters.Add("@Version", SqlDbType.Int).Value = sqlServerData.Version; - command.Parameters.Add("@DataXml", SqlDbType.Xml).Value = dataXml; - - try - { - command.ExecuteNonQuery(); - dbTransaction.Commit(); - } - catch - { - dbTransaction.Rollback(); - throw; - } - finally - { - sqlConnection.Close(); - } - } - } - } - } - - /// - /// Update data of existing ProcessManager and completes transaction opened by FindData(). - /// - /// - /// - public void UpdateData(IPersistanceData data) where T : class, IProcessManagerData - { - string tableName = GetTableName(data.Data); - - var sqlServerData = (SqlServerData)data; - int currentVersion = sqlServerData.Version; - - var xmlSerializer = new XmlSerializer(data.Data.GetType()); - var sww = new StringWriter(); - XmlWriter writer = XmlWriter.Create(sww); - xmlSerializer.Serialize(writer, data.Data); - var dataXml = sww.ToString(); - - string sql = string.Format(@"UPDATE {0} SET DataXml = @DataXml, Version = @NewVersion WHERE Id = @Id AND Version = @CurrentVersion", tableName); - - int result; - using (var sqlConnection = new SqlConnection(_connectionString)) - { - sqlConnection.Open(); - - using (var command = new SqlCommand(sql)) - { - command.Connection = sqlConnection; - command.CommandTimeout = _commandTimeout; - command.Parameters.Add("@Id", SqlDbType.UniqueIdentifier).Value = sqlServerData.Id; - command.Parameters.Add("@DataXml", SqlDbType.Xml).Value = dataXml; - command.Parameters.Add("@CurrentVersion", SqlDbType.Int).Value = currentVersion; - command.Parameters.Add("@NewVersion", SqlDbType.Int).Value = ++currentVersion; - - try - { - result = command.ExecuteNonQuery(); - } - finally - { - sqlConnection.Close(); - } - } - } - - if (result == 0) - throw new ArgumentException(string.Format("Possible Concurrency Error. ProcessManagerData with CorrelationId {0} and Version {1} could not be updated.", sqlServerData.Data.CorrelationId, sqlServerData.Version)); - } - - /// - /// Removes existing instance of ProcessManager from the database and - /// completes transaction opened by FindData(). - /// - /// - /// - public void DeleteData(IPersistanceData data) where T : class, IProcessManagerData - { - string tableName = GetTableName(data.Data); - - var sqlServerData = (SqlServerData)data; - - string sql = string.Format(@"DELETE FROM {0} WHERE Id = @Id", tableName); - - using (var sqlConnection = new SqlConnection(_connectionString)) - { - sqlConnection.Open(); - - using (var command = new SqlCommand(sql)) - { - command.Connection = sqlConnection; - command.Parameters.Add("@Id", SqlDbType.UniqueIdentifier).Value = sqlServerData.Id; - - try - { - command.ExecuteNonQuery(); - } - finally - { - sqlConnection.Close(); - } - } - } - } - - public void InsertTimeout(TimeoutData timeoutData) - { - using (var sqlConnection = new SqlConnection(_connectionString)) - { - sqlConnection.Open(); - - using (var cmd = new SqlCommand()) - { - cmd.Connection = sqlConnection; - cmd.CommandText = string.Format("IF NOT EXISTS( SELECT 1 FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = '{0}') ", TimeoutsTableName) + - string.Format("CREATE TABLE {0} (Id uniqueidentifier NOT NULL, ProcessManagerId uniqueidentifier NOT NULL, Destination varchar(250) NOT NULL, Time DateTime NOT NULL, Locked bit, Headers text);", TimeoutsTableName); - cmd.ExecuteNonQuery(); - } - - using (var dbTran = sqlConnection.BeginTransaction(IsolationLevel.Serializable)) - { - // Insert if doesn't exist, else update (only the first one is allowed) - string sql = string.Format(@"INSERT {0} (Id, ProcessManagerId, Destination, Time, Locked, Headers) - VALUES (@Id, @ProcessManagerId, @Destination, @Time, @Locked, @Headers)", TimeoutsTableName); - - using (var cmd = new SqlCommand(sql)) - { - cmd.Connection = sqlConnection; - cmd.Transaction = dbTran; - cmd.Parameters.Add("@Id", SqlDbType.UniqueIdentifier).Value = timeoutData.Id; - cmd.Parameters.Add("@ProcessManagerId", SqlDbType.UniqueIdentifier).Value = timeoutData.ProcessManagerId; - cmd.Parameters.Add("@Destination", SqlDbType.VarChar).Value = timeoutData.Destination; - cmd.Parameters.Add("@Time", SqlDbType.DateTime).Value = timeoutData.Time; - cmd.Parameters.Add("@Locked", SqlDbType.Bit).Value = timeoutData.Locked; - cmd.Parameters.Add("@Headers", SqlDbType.Text).Value = JsonConvert.SerializeObject(timeoutData.Headers); - - cmd.ExecuteNonQuery(); - dbTran.Commit(); - } - } - } - - if (TimeoutInserted != null) - { - TimeoutInserted(timeoutData.Time); - } - } - - public TimeoutsBatch GetTimeoutsBatch() - { - var retval = new TimeoutsBatch { DueTimeouts = new List() }; - - using (var connection = new SqlConnection(_connectionString)) - { - connection.Open(); - - // Make sure table exists - using (var cmd = new SqlCommand()) - { - cmd.Connection = connection; - cmd.CommandText = string.Format("IF NOT EXISTS( SELECT 1 FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = '{0}') ", TimeoutsTableName) + - string.Format("CREATE TABLE {0} (Id uniqueidentifier NOT NULL, ProcessManagerId uniqueidentifier NOT NULL, Destination varchar(250) NOT NULL, Time DateTime NOT NULL, Locked bit, Headers text);", TimeoutsTableName); - cmd.ExecuteNonQuery(); - } - - using (var dbTran = connection.BeginTransaction(IsolationLevel.Serializable)) - { - var utcNow = DateTime.UtcNow; - - // Get timeouts due - string querySql = string.Format("SELECT Id, ProcessManagerId, Destination, Time, Locked, Headers FROM [dbo].[{0}] WHERE Locked = 0 AND Time <= @Time",TimeoutsTableName); - using (var cmd = new SqlCommand(querySql, connection, dbTran)) - { - cmd.Parameters.AddWithValue("@Time", utcNow); - - using (SqlDataReader reader = cmd.ExecuteReader()) - { - while (reader.Read()) - { - var td = new TimeoutData - { - Destination = reader["Destination"].ToString(), - Id = Guid.Parse(reader["Id"].ToString()), - Headers = JsonConvert.DeserializeObject>(reader["Headers"].ToString()), - ProcessManagerId = Guid.Parse(reader["ProcessManagerId"].ToString()), - Time = (DateTime) reader["Time"] - }; - retval.DueTimeouts.Add(td); - } - } - } - - // Lock records with timout due - string updateSql = string.Format("UPDATE [dbo].[{0}] SET Locked = 1 WHERE Locked = 0 AND Time <= @Time", TimeoutsTableName); - using (var cmd = new SqlCommand(updateSql, connection, dbTran)) - { - cmd.Parameters.AddWithValue("@Time", utcNow); - cmd.ExecuteNonQuery(); - } - - // Get next query time - var nextQueryTime = DateTime.MaxValue; - string nextQueryTimeSql = string.Format("SELECT Time FROM [dbo].[{0}] WHERE Time > @Time", TimeoutsTableName); - using (var cmd = new SqlCommand(nextQueryTimeSql, connection, dbTran)) - { - cmd.Parameters.AddWithValue("@Time", utcNow); - - using (SqlDataReader reader = cmd.ExecuteReader()) - { - while (reader.Read()) - { - if ((DateTime)reader["Time"] < nextQueryTime) - { - nextQueryTime = (DateTime)reader["Time"]; - } - } - } - } - - if (nextQueryTime == DateTime.MaxValue) - { - nextQueryTime = utcNow.AddMinutes(1); - } - - retval.NextQueryTime = nextQueryTime; - - dbTran.Commit(); - } - } - - return retval; - } - - public void RemoveDispatchedTimeout(Guid id) - { - string sql = string.Format("DELETE FROM [dbo].[{0}] WHERE Locked = 1 AND Id = @Id", TimeoutsTableName); - - using (var connection = new SqlConnection(_connectionString)) - { - connection.Open(); - var cmd = new SqlCommand(sql, connection); - cmd.Parameters.AddWithValue("@Id", id); - cmd.CommandType = CommandType.Text; - cmd.ExecuteNonQuery(); - } - } - - #region Private Methods - - private bool GetTableNameExists(string tableName) - { - bool retval = false; - - // Create table if doesn't exist - using (var connection = new SqlConnection(_connectionString)) - { - connection.Open(); - using (var command = new SqlCommand()) - { - command.Connection = connection; - command.CommandText = string.Format("SELECT 1 FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = '{0}'", tableName); - var result = command.ExecuteScalar(); - - if (null != result && (int)result == 1) - retval = true; - } - } - - return retval; - } - - private string GetTableName(T data) where T : class, IProcessManagerData - { - Type typeParameterType = data.GetType(); - var tableName = typeParameterType.Name; - - using (var connection = new SqlConnection(_connectionString)) - { - connection.Open(); - - // Create table if doesn't exist - using (var command = new SqlCommand()) - { - command.Connection = connection; - command.CommandText = string.Format("IF NOT EXISTS( SELECT 1 FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = '{0}') ", tableName) + - string.Format("CREATE TABLE {0} (Id uniqueidentifier NOT NULL, Version int NOT NULL, DataXml xml NULL);", tableName); - command.ExecuteNonQuery(); - } - - // Create index if doesn't exist - using (var command = new SqlCommand()) - { - command.Connection = connection; - command.CommandText = string.Format("IF NOT EXISTS( SELECT 1 FROM sys.indexes WHERE name='ClusteredIndex_{0}' AND object_id = OBJECT_ID('{0}')) ", tableName) + - string.Format("CREATE UNIQUE CLUSTERED INDEX [ClusteredIndex_{0}] ON [dbo].[{0}] ([Id] ASC)", tableName); - command.ExecuteNonQuery(); - } - connection.Close(); - } - - return tableName; - } - - #endregion - } -} diff --git a/src/ServiceConnect.Persistence.InMemory/Aggregator/InMemoryAggregatorPersistor.cs b/src/ServiceConnect.Persistence.InMemory/Aggregator/InMemoryAggregatorPersistor.cs new file mode 100644 index 000000000..69b4f5e4e --- /dev/null +++ b/src/ServiceConnect.Persistence.InMemory/Aggregator/InMemoryAggregatorPersistor.cs @@ -0,0 +1,277 @@ +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Exceptions; + +namespace ServiceConnect.Persistence.InMemory; + +/// +/// Stores aggregator messages and snapshots in the process memory of the current application. +/// +/// +/// Intended for development and tests. Aggregator data is held in-process and is not +/// durable across restarts. Use a durable +/// implementation (e.g. the MongoDB persistor) for production. +/// +internal sealed class InMemoryAggregatorPersistor : IAggregatorPersistor, IDisposable +{ + private readonly TimeProvider _timeProvider; + private readonly CacheProvider _provider; + private int _disposed; + + /// + /// Initializes a new instance. + /// + /// Time source used by the underlying cache provider; defaults to . + public InMemoryAggregatorPersistor(TimeProvider? timeProvider = null) + { + _timeProvider = timeProvider ?? TimeProvider.System; + _provider = new CacheProvider(_timeProvider); + } +#if NET9_0_OR_GREATER + private readonly Lock _memoryCacheLock = new(); +#else + private readonly object _memoryCacheLock = new(); +#endif + + private sealed record Entry(Guid Id, IHasCorrelationId Data, string IdempotencyKey); + + /// + /// Adds an aggregator message to the named in-memory stream, idempotent on + /// while the message's row is still buffered. + /// + public Task InsertDataAsync(IHasCorrelationId data, string name, string idempotencyKey, CancellationToken cancellationToken = default) + { + cancellationToken.ThrowIfCancellationRequested(); + ArgumentNullException.ThrowIfNull(data); + ArgumentException.ThrowIfNullOrWhiteSpace(idempotencyKey); + // Deep-clone before storing so later caller mutations do not bleed into the + // buffer. Retrieval does the same on the outbound side. + var stored = DeepClone.Clone(data); + lock (_memoryCacheLock) + { + var list = GetOrCreateEntries(name); + // Skip the insert if a buffered row already carries this idempotency key. + // The check is O(N) over the per-aggregator buffer; aggregators rarely + // exceed a few hundred rows in normal usage so a HashSet would not pay + // back its allocation. Once RemoveSnapshotAsync drains a row the key + // disappears with it; idempotency only protects the active window, which + // covers the retry-queue redelivery race InsertDataAsync exists to defend. + for (int i = 0; i < list.Count; i++) + { + if (string.Equals(list[i].IdempotencyKey, idempotencyKey, StringComparison.Ordinal)) + { + return Task.CompletedTask; + } + } + list.Add(new Entry(Guid.NewGuid(), stored, idempotencyKey)); + } + return Task.CompletedTask; + } + + /// + /// Returns the stored messages for the named stream. + /// + public Task> GetDataAsync(string name, CancellationToken cancellationToken = default) + { + cancellationToken.ThrowIfCancellationRequested(); + lock (_memoryCacheLock) + { + if (!_provider.TryGet(name, out var sourceObj) || sourceObj is not List source) + { + return Task.FromResult>([]); + } + var copy = new List(source.Count); + foreach (var entry in source) + { + copy.Add(DeepClone.Clone(entry.Data)); + } + + return Task.FromResult>(copy); + } + } + + /// + /// Returns a snapshot of the stored messages for the named stream. + /// + public Task GetSnapshotAsync(string name, CancellationToken cancellationToken = default) + { + cancellationToken.ThrowIfCancellationRequested(); + + // Hold the lock through DeepClone to guarantee the source Entry.Data is not + // mutated mid-clone. A previous version released the lock before cloning, + // relying on the invariant "no aggregator-update path mutates Entry.Data in + // place" — fragile against future changes; risks serialising a torn object. + // The clone cost under the lock is acceptable: snapshots are infrequent + // relative to inserts, and the buffer's purpose is single-pass dispatch. + // + // The InMemory persistor cannot produce an unresolved entry: InsertDataAsync + // rejects null, every entry carries a typed IHasCorrelationId, and there is no + // deserialise step that could fail. UnresolvedCount is therefore always 0 here. + // The Mongo persistor reaches the unresolved branch when a stored document's + // CLR type is no longer registered or doesn't implement the interface; that + // branch is exercised by MongoDbAggregatorPersistor's tests. + // + // No per-snapshot lease is required here: this persistor is per-process and + // the AggregatorProcessor serialises flushes per aggregator name via its own + // flushLock — the multi-worker dispatch hazard the Mongo lease defends against + // doesn't exist in-process. A lease would also break the documented + // "handler exception → broker redelivers → re-flush" contract because in-memory + // leases have no TTL to release stranded claims after a handler throw. + lock (_memoryCacheLock) + { + if (!_provider.TryGet(name, out var sourceObj) || sourceObj is not List source) + { + return Task.FromResult(AggregatorSnapshot.Empty); + } + + var messages = new List(source.Count); + var ids = new List(source.Count); + foreach (var entry in source) + { + messages.Add(DeepClone.Clone(entry.Data)); + ids.Add(entry.Id); + } + return Task.FromResult(new AggregatorSnapshot(messages, ids, UnresolvedCount: 0)); + } + } + + /// + /// Removes the first stored message whose correlation identifier matches the specified value. + /// + public Task RemoveDataAsync(string name, Guid correlationId, CancellationToken cancellationToken = default) + { + cancellationToken.ThrowIfCancellationRequested(); + bool removed = false; + lock (_memoryCacheLock) + { + if (_provider.TryGet(name, out var listObj) && listObj is List list) + { + for (var index = 0; index < list.Count; index++) + { + if (list[index].Data.CorrelationId == correlationId) + { + list.RemoveAt(index); + removed = true; + break; + } + } + } + } + // Mirror MongoDbAggregatorPersistor's no-op-delete contract so callers across persistors + // can distinguish a concurrent-removal race from a mismatched key. InMemoryProcessManagerFinder + // already raises ConcurrencyException on DeleteDataAsync no-ops; keeping aggregator behaviour + // aligned prevents a silent divergence between persistor families. + if (!removed) + { + throw new ConcurrencyException( + $"Aggregator row not found: Name='{name}', CorrelationId='{correlationId}'. Row was concurrently removed or caller passed a mismatched key."); + } + + return Task.CompletedTask; + } + + /// + /// Removes all stored messages for the named stream. + /// + public Task RemoveAllAsync(string name, CancellationToken cancellationToken = default) + { + cancellationToken.ThrowIfCancellationRequested(); + lock (_memoryCacheLock) + { + if (_provider.Contains(name)) + { + _provider.Remove(name); + } + } + return Task.CompletedTask; + } + + /// + /// Removes all entries represented by the supplied snapshot. + /// + public Task RemoveSnapshotAsync(string name, IAggregatorSnapshot snapshot, CancellationToken cancellationToken = default) + { + ArgumentNullException.ThrowIfNull(snapshot); + cancellationToken.ThrowIfCancellationRequested(); + if (snapshot.ResolvedIds.Count == 0) + { + return Task.CompletedTask; + } + + lock (_memoryCacheLock) + { + if (!_provider.TryGet(name, out var listObj) || listObj is not List list) + { + return Task.CompletedTask; + } + + var idsToRemove = new HashSet(snapshot.ResolvedIds); + list.RemoveAll(entry => idsToRemove.Contains(entry.Id)); + + if (list.Count == 0) + { + _provider.Remove(name); + } + } + return Task.CompletedTask; + } + + /// + /// Returns the number of stored messages for the named stream. + /// + public Task CountAsync(string name, CancellationToken cancellationToken = default) + { + cancellationToken.ThrowIfCancellationRequested(); + lock (_memoryCacheLock) + { + if (_provider.TryGet(name, out var listObj) && listObj is List list) + { + return Task.FromResult(list.Count); + } + return Task.FromResult(0); + } + } + + /// + /// Returns the number of stored messages for the named stream whose CLR type is + /// currently resolvable. + /// + /// + /// The InMemory persistor cannot produce unresolved entries: + /// rejects null and stores typed instances directly, so + /// every record is resolved by definition. This is therefore a thin pass-through to + /// . The Mongo persistor, which deserialises lazily on read, + /// uses a typed $in filter and is the regression backstop for unresolved-aware + /// gating. + /// + public Task CountResolvedAsync(string name, CancellationToken cancellationToken = default) + => CountAsync(name, cancellationToken); + + /// + /// Disposes the underlying , releasing any timers + /// it owns. Without this, every DI rebuild leaks timer registrations. + /// + public void Dispose() + { + if (Interlocked.Exchange(ref _disposed, 1) != 0) + { + return; + } + + _provider.Dispose(); + } + + private List GetOrCreateEntries(string name) + { + if (_provider.TryGet(name, out var existing) && existing is List cached) + { + return cached; + } + + var list = new List(); + // Aggregator buffers have no TTL: flush is caller-driven via RemoveSnapshot / + // RemoveAll. Background expiry must never silently drop buffered messages + // mid-aggregation. + _provider.Add(name, list); + return list; + } +} diff --git a/src/ServiceConnect.Persistence.InMemory/Cache/CacheItem.cs b/src/ServiceConnect.Persistence.InMemory/Cache/CacheItem.cs new file mode 100644 index 000000000..7c1467858 --- /dev/null +++ b/src/ServiceConnect.Persistence.InMemory/Cache/CacheItem.cs @@ -0,0 +1,18 @@ +namespace ServiceConnect.Persistence.InMemory; + +/// +/// Initializes a new with a value, priority, and optional +/// relative expiry duration. A null disables sliding expiry. +/// +internal sealed class CacheItem(object value, CacheItemPriority priority, TimeSpan? relativeExpiry = null) +{ + + /// Cached value. + public object? Value { get; init; } = value; + + /// Priority controlling whether this item is subject to purge sweeps. + public CacheItemPriority Priority { get; init; } = priority; + + /// Sliding expiry window; null for absolute expiry. + public TimeSpan? RelativeExpiry { get; init; } = relativeExpiry; +} diff --git a/src/ServiceConnect.Persistence.InMemory/Cache/CacheItemPriority.cs b/src/ServiceConnect.Persistence.InMemory/Cache/CacheItemPriority.cs new file mode 100644 index 000000000..1cb8d5544 --- /dev/null +++ b/src/ServiceConnect.Persistence.InMemory/Cache/CacheItemPriority.cs @@ -0,0 +1,17 @@ +namespace ServiceConnect.Persistence.InMemory; + +/// +/// Defines the retention priority assigned to cached items. +/// +internal enum CacheItemPriority +{ + /// + /// Indicates standard cache retention behavior. + /// + Normal, + + /// + /// Indicates the item should be retained ahead of normal-priority items. + /// + High, +} diff --git a/src/ServiceConnect.Persistence.InMemory/Cache/CacheProvider.cs b/src/ServiceConnect.Persistence.InMemory/Cache/CacheProvider.cs new file mode 100644 index 000000000..86fbab10f --- /dev/null +++ b/src/ServiceConnect.Persistence.InMemory/Cache/CacheProvider.cs @@ -0,0 +1,420 @@ +using System.Collections.Concurrent; + +namespace ServiceConnect.Persistence.InMemory; + +/// +/// Provides an in-memory cache with absolute and sliding expiration support. +/// +/// +/// Initializes a new using the supplied clock. +/// +internal sealed class CacheProvider(TimeProvider? timeProvider = null) : ICacheProvider, IKeyValueStore, IDisposable +{ + private readonly TimeProvider _timeProvider = timeProvider ?? TimeProvider.System; + private readonly ConcurrentDictionary _cache = new(); + private readonly ConcurrentDictionary _slidingTime = new(); + private readonly ConcurrentDictionary _timers = new(); + // Per-key generation counter. Each Add for a key bumps it; the timer callback + // captures the value at registration and skips eviction if the captured value + // doesn't match the current generation — closing the re-Add-during-callback + // race where an in-flight TryPurgeItem could evict the new value via Remove(key). + // ITimer.Dispose does not wait for in-flight callbacks, so a callback that + // already read _slidingTime[key] before the new Add overwrote it would otherwise + // observe a stale expiry window, return CanExpire==true, and remove the new value. + // ConcurrentDictionary's AddOrUpdate atomicity ensures the bump and the timer + // installation are observed together by stale callbacks via TryGetValue. + private readonly ConcurrentDictionary _generations = new(); + // Serializes compound Add operations so the value swap, sliding window reset, and + // timer replacement are observed together. Without it, a re-Add after the original + // TryAdd retained the stale value but StartObserving installed a fresh timer — + // effectively extending the stale value's TTL. +#if NET9_0_OR_GREATER + private readonly System.Threading.Lock _addLock = new(); +#else + private readonly object _addLock = new(); +#endif + private int _disposed; + + #region Implementation of ICacheProvider + + /// + /// Occurs after an entry is removed from the cache. + /// + public event EventHandler? KeyRemoved; + + /// + /// Add a value to the cache with a relative expiry time, e.g 10 minutes. + /// + public void Add(TKey key, TValue value, TimeSpan slidingExpiry, CacheItemPriority priority = CacheItemPriority.Normal) + { + ObjectDisposedException.ThrowIf(Volatile.Read(ref _disposed) != 0, this); + Add(key, value, slidingExpiry, priority, true); + } + + /// + /// Add a value to the cache with an absolute time, e.g. 01/01/2020. + /// + public void Add(TKey key, TValue value, DateTimeOffset absoluteExpiry, CacheItemPriority priority = CacheItemPriority.Normal) + { + ObjectDisposedException.ThrowIf(Volatile.Read(ref _disposed) != 0, this); + + // Single clock read — defensive against a non-monotonic test TimeProvider where + // a second GetUtcNow() call could observe an earlier time, producing a negative diff. + var now = _timeProvider.GetUtcNow(); + if (absoluteExpiry < now) + { + throw new ArgumentOutOfRangeException(nameof(absoluteExpiry), "Absolute expiry must be in the future."); + } + + var diff = absoluteExpiry - now; + Add(key, value, diff, priority, false); + } + + /// + /// Add a value that never expires. No timer is scheduled and no sliding window is + /// maintained — the entry persists until , + /// , or removes it. + /// Intended for caller-managed state (e.g. saga/aggregator persistence) where a + /// background expiry would silently drop in-flight data. + /// + public void Add(TKey key, TValue value, CacheItemPriority priority = CacheItemPriority.Normal) + { + ObjectDisposedException.ThrowIf(Volatile.Read(ref _disposed) != 0, this); + // Matches the timed Add overloads: a re-Add replaces the value and clears any + // sliding/timer state a prior timed Add left in place. + lock (_addLock) + { + _cache[key!] = new CacheItem(value!, priority, null); + _slidingTime.TryRemove(key!, out _); + DisposeTimer(key!); + // Bump the generation so any in-flight TryPurgeItem callback from a prior + // timed-Add cycle observes a mismatch and skips eviction. Without the bump, + // a callback past its generation check sees _slidingTime empty (cleared just + // above), falls through to Remove(key), and silently evicts the freshly- + // installed value. + _generations.AddOrUpdate(key!, 1L, (_, prior) => prior + 1L); + } + } + + /// + /// Tries to get a value from the cache for the specified key. + /// Returns and writes the stored value (possibly ) + /// to if the key is present; returns and + /// writes default to otherwise. Distinguishes "key absent" + /// from "key present with null value". + /// + public bool TryGet(TKey key, out TValue? value) + { + if (!_cache.TryGetValue(key!, out var cacheItem)) + { + value = default; + return false; + } + + if (cacheItem.RelativeExpiry.HasValue && _slidingTime.TryGetValue(key!, out var sliding)) + { + sliding.Slide(); + } + + value = (TValue?)cacheItem.Value; + return true; + } + + /// + /// Remove a value from the cache for specified key. + /// + public void Remove(TKey key) + { + ObjectDisposedException.ThrowIf(Volatile.Read(ref _disposed) != 0, this); + if (Equals(key, null)) + { + return; + } + + bool removed; + // _addLock is held so a concurrent Add (timed or no-expiry) cannot interleave + // its mutations between this Remove's TryRemove on _cache and its cleanup of + // _slidingTime / _timers. Without the lock, an Add running end-to-end while + // Remove sat between operations would have its sliding entry and timer stripped + // by Remove, leaving _cache holding the new value with no expiry tracking. + lock (_addLock) + { + removed = _cache.TryRemove(key!, out _); + _slidingTime.TryRemove(key!, out _); + DisposeTimer(key!); + // Bump the generation so any in-flight TryPurgeItem callback for the + // departing entry's prior generation sees a mismatch and bails before + // calling Remove recursively. + _generations.AddOrUpdate(key!, 1L, (_, prior) => prior + 1L); + } + + // Fire KeyRemoved outside the lock — subscribers may take their own locks or + // perform I/O and we don't want to widen _addLock's contention surface. + if (removed) + { + KeyRemoved?.Invoke(this, new KeyRemovedEventArgs(key!)); + } + } + + /// + /// Clears the contents of the cache. + /// + public void Clear() + { + ObjectDisposedException.ThrowIf(Volatile.Read(ref _disposed) != 0, this); + // Snapshot keys before clearing so subscribers see a KeyRemoved event for every + // entry that was present at this point. Entries added between this snapshot and + // the _cache.Clear() call below are silently dropped without a KeyRemoved event — + // callers needing strict cross-thread consistency must synchronise externally. + var removedKeys = _cache.Keys.ToList(); + + _cache.Clear(); + _slidingTime.Clear(); + + foreach (var kvp in _timers) + { + kvp.Value.Dispose(); + } + _timers.Clear(); + + if (KeyRemoved is null) + { + return; + } + + foreach (var key in removedKeys) + { + KeyRemoved.Invoke(this, new KeyRemovedEventArgs(key)); + } + } + + /// + /// Gets an enumerator for keys assignable to TKey, including derived types and + /// interface implementations. Streams the ConcurrentDictionary snapshot so callers + /// that bail early avoid the full filtered-materialization cost. + /// + public IEnumerable Keys() + { + var typeOfKey = typeof(TKey); + foreach (var k in _cache.Keys) + { + if (typeOfKey.IsAssignableFrom(k.GetType())) + { + yield return (TKey)k; + } + } + } + + /// + /// Gets an enumerator for all the keys. + /// is already a snapshot — no extra materialization required. + /// + public IEnumerable Keys() => _cache.Keys; + + /// + /// Gets the total count of items in cache. + /// + public int Count() + { + return _cache.Count; + } + + /// + /// Purges all cache items with normal priorities. + /// + public int PurgeNormalPriorities() + { + ObjectDisposedException.ThrowIf(Volatile.Read(ref _disposed) != 0, this); + int removed = 0; + foreach (var cacheItem in _cache) + { + if (cacheItem.Value.Priority != CacheItemPriority.Normal) + { + continue; + } + + bool removedThis; + // KVP-overload TryRemove succeeds only when the value reference still + // matches the one observed during the scan. A concurrent re-Add that + // upgraded the priority replaces the dictionary slot with a fresh + // CacheItem reference, so this remove correctly fails and leaves the + // upgraded entry in place. The lock then ensures a concurrent Add for + // a different key cannot interleave its timer install with our cleanup. + lock (_addLock) + { + removedThis = _cache.TryRemove(cacheItem); + if (removedThis) + { + _slidingTime.TryRemove(cacheItem.Key, out _); + DisposeTimer(cacheItem.Key); + _generations.AddOrUpdate(cacheItem.Key, 1L, (_, prior) => prior + 1L); + } + } + + if (removedThis) + { + removed++; + KeyRemoved?.Invoke(this, new KeyRemovedEventArgs(cacheItem.Key)); + } + } + return removed; + } + + /// + /// Determines whether the cache contains the specified key. + /// + public bool Contains(TKey key) + { + return key is not null && _cache.ContainsKey(key); + } + + /// + /// Replaces the value for an existing key without resetting its expiry timer or + /// sliding-time window. Throws if the key is absent. + /// + public void Update(TKey key, TValue value) + { + ObjectDisposedException.ThrowIf(Volatile.Read(ref _disposed) != 0, this); + if (key is null) + { + return; + } + + while (true) + { + if (!_cache.TryGetValue(key!, out var existing)) + { + // Either the key was never present, or another thread removed it during + // the CAS retry. Either way the caller's optimistic-update contract is + // violated — throw so the caller can react deterministically. Silently + // no-op'ing here would let the aggregator's optimistic-concurrency loop + // advance Version against a phantom row. + throw new KeyNotFoundException( + $"Cannot Update key '{key}' — key not present. Use Add to insert new keys."); + } + + var replacement = new CacheItem(value!, existing.Priority, existing.RelativeExpiry); + if (_cache.TryUpdate(key!, replacement, existing)) + { + return; + } + } + } + + #endregion + + #region IDisposable + + /// + /// Releases timers owned by this cache instance. + /// + public void Dispose() + { + if (Interlocked.Exchange(ref _disposed, 1) != 0) + { + return; + } + + foreach (var kvp in _timers) + { + kvp.Value.Dispose(); + } + + _timers.Clear(); + } + + #endregion + + #region Private class helper + + private void Add(TKey key, TValue value, TimeSpan timeSpan, CacheItemPriority priority, bool isSliding) + { + // Compound replace-and-reset: value, sliding window, and timer are all written + // together so a re-Add fully supersedes the prior entry instead of refreshing the + // stale value's TTL. + lock (_addLock) + { + _cache[key!] = new CacheItem(value!, priority, isSliding ? timeSpan : (TimeSpan?)null); + + if (isSliding) + { + _slidingTime[key!] = new SlidingDetails(timeSpan, _timeProvider); + } + else + { + _slidingTime.TryRemove(key!, out _); + } + + // Bump the generation BEFORE installing the new timer. The timer callback + // captures this value; a stale callback from the prior generation will see + // a mismatch and skip eviction. + var generation = _generations.AddOrUpdate(key!, 1L, (_, prior) => prior + 1L); + StartObserving(key!, timeSpan, generation); + } + } + + private void StartObserving(TKey key, TimeSpan timeSpan, long generation) + { + // Clamp to at least 1 ms to avoid a zero-delay timer firing before the caller returns. + var delay = timeSpan.Ticks > 0 ? timeSpan : TimeSpan.FromMilliseconds(1); + + var timer = _timeProvider.CreateTimer(_ => TryPurgeItem(key!, generation), null, delay, Timeout.InfiniteTimeSpan); + + // Swap in the new timer and dispose any previous one (re-observation after sliding check). + _timers.AddOrUpdate(key!, timer, (_, existing) => + { + existing.Dispose(); + return timer; + }); + } + + private void TryPurgeItem(TKey key, long generation) + { + // Fast-fail: if the generation has been bumped (a new Add happened for this key), + // this callback is stale and must NOT evict. ITimer.Dispose() doesn't wait for + // callbacks, so a stale TryPurgeItem can be running on a disposed timer; the + // generation check is the load-bearing guard against evicting the new value. + if (!_generations.TryGetValue(key!, out var current) || current != generation) + { + return; + } + + if (_slidingTime.TryGetValue(key!, out var details)) + { + if (!details.CanExpire(out TimeSpan tryAfter)) + { + // Don't re-install a timer that captures 'this' if dispose already ran. + if (Volatile.Read(ref _disposed) != 0) + { + return; + } + + // Re-observation within the same Add cycle — keep the same generation so + // a future Add bump invalidates this re-installed callback as well. + StartObserving(key, tryAfter, generation); + return; + } + } + + try + { + Remove(key); + } + catch (ObjectDisposedException) + { + // The cache was disposed while a timer callback was already in flight. + // Swallow — the dispose path takes ownership of cleanup; this best-effort + // invocation is redundant. + } + } + + private void DisposeTimer(object key) + { + if (_timers.TryRemove(key, out var timer)) + { + timer.Dispose(); + } + } + + #endregion +} diff --git a/src/ServiceConnect.Persistence.InMemory/Cache/ICacheProvider.cs b/src/ServiceConnect.Persistence.InMemory/Cache/ICacheProvider.cs new file mode 100644 index 000000000..d02d352ae --- /dev/null +++ b/src/ServiceConnect.Persistence.InMemory/Cache/ICacheProvider.cs @@ -0,0 +1,96 @@ +namespace ServiceConnect.Persistence.InMemory; + +/// +/// Interface for caching providers +/// +internal interface ICacheProvider +{ + /// + /// Occurs after a cache key is removed. + /// + event EventHandler KeyRemoved; + + /// + /// Add a value to the cache with a relative expiry time, e.g 10 minutes. + /// + void Add(TKey key, TValue value, TimeSpan slidingExpiry, CacheItemPriority priority = CacheItemPriority.Normal); + + /// + /// Add a value to the cache with an absolute time, e.g. 01/01/2020. + /// + void Add(TKey key, TValue value, DateTimeOffset absoluteExpiry, CacheItemPriority priority = CacheItemPriority.Normal); + + /// + /// Tries to get a value from the cache for the specified key. + /// + /// + /// if the key is present (the stored value is written to + /// ); otherwise. Distinguishes + /// "key absent" from "key present with null value" — a null stored value writes + /// to and still returns + /// . + /// + /// + /// For reference-type , may + /// be when present (a null was explicitly stored). For + /// value-type , the runtime out-parameter is the + /// underlying value type — never — and on miss receives + /// default(TValue) (e.g. 0 for ). + /// + bool TryGet(TKey key, out TValue? value); + + /// + /// Remove a value from the cache for specified key. + /// + void Remove(TKey key); + + /// + /// Clears the contents of the cache. + /// + void Clear(); + + /// + /// Gets an enumerator for keys of a specific type. + /// + IEnumerable Keys(); + + /// + /// Gets an enumerator for all the keys. + /// + IEnumerable Keys(); + + /// + /// Gets the total count of items in cache. + /// + int Count(); + + /// + /// Purges all cache items with normal priorities. + /// + int PurgeNormalPriorities(); + + /// + /// Determines whether the cache contains the specified key. + /// + bool Contains(TKey key); + + /// + /// Replaces the value for an existing key without resetting its expiry timer or + /// sliding-time window. + /// + /// + /// Thrown when is not present, so callers fail deterministically + /// rather than silently no-op'ing on a missing key. Use + /// to insert new keys. + /// + void Update(TKey key, TValue value); + + /// + /// Add a value that never expires. No timer is scheduled and no sliding window is + /// maintained — the entry persists until , + /// , or removes it. + /// Intended for caller-managed state (e.g. saga/aggregator persistence) where a + /// background expiry would silently drop in-flight data. + /// + void Add(TKey key, TValue value, CacheItemPriority priority = CacheItemPriority.Normal); +} diff --git a/src/ServiceConnect.Persistence.InMemory/Cache/IKeyValueStore.cs b/src/ServiceConnect.Persistence.InMemory/Cache/IKeyValueStore.cs new file mode 100644 index 000000000..7f454deb1 --- /dev/null +++ b/src/ServiceConnect.Persistence.InMemory/Cache/IKeyValueStore.cs @@ -0,0 +1,57 @@ +namespace ServiceConnect.Persistence.InMemory; + +/// +/// Defines key-based storage operations used by the in-memory persistence components. +/// +internal interface IKeyValueStore +{ + /// + /// Adds a value that expires at the specified absolute time. + /// + void Add(TKey key, TValue value, DateTimeOffset absoluteExpiry, CacheItemPriority priority = CacheItemPriority.Normal); + + /// + /// Tries to get a value from the store for the specified key. + /// + /// + /// if the key is present (the stored value is written to + /// ); otherwise. Distinguishes + /// "key absent" from "key present with null value" — a null stored value writes + /// to and still returns + /// . + /// + /// + /// For reference-type , may + /// be when present (a null was explicitly stored). For + /// value-type , the runtime out-parameter is the + /// underlying value type — never — and on miss receives + /// default(TValue) (e.g. 0 for ). + /// + bool TryGet(TKey key, out TValue? value); + + /// + /// Removes the value stored for the specified key. + /// + void Remove(TKey key); + + /// + /// Returns all keys currently stored. + /// + IEnumerable Keys(); + + /// + /// Determines whether the specified key exists. + /// + bool Contains(TKey key); + + /// + /// Replaces the value stored for an existing key. + /// + /// + /// Thrown when is not present, so callers fail deterministically + /// rather than silently no-op'ing on a missing key. Use + /// to + /// insert new keys. + /// + void Update(TKey key, TValue value); +} diff --git a/src/ServiceConnect.Persistence.InMemory/Cache/KeyRemovedEventArgs.cs b/src/ServiceConnect.Persistence.InMemory/Cache/KeyRemovedEventArgs.cs new file mode 100644 index 000000000..e59211278 --- /dev/null +++ b/src/ServiceConnect.Persistence.InMemory/Cache/KeyRemovedEventArgs.cs @@ -0,0 +1,11 @@ +namespace ServiceConnect.Persistence.InMemory; + +/// +/// Provides data for the event, +/// carrying the key whose entry was removed. +/// +internal sealed class KeyRemovedEventArgs(object key) : EventArgs +{ + /// Gets the key whose entry was removed from the cache. + public object Key { get; } = key; +} diff --git a/src/ServiceConnect.Persistence.InMemory/Cache/SlidingDetails.cs b/src/ServiceConnect.Persistence.InMemory/Cache/SlidingDetails.cs new file mode 100644 index 000000000..90996eace --- /dev/null +++ b/src/ServiceConnect.Persistence.InMemory/Cache/SlidingDetails.cs @@ -0,0 +1,46 @@ +namespace ServiceConnect.Persistence.InMemory; + +/// +/// Tracks the current expiry window for a sliding-expiration cache entry. +/// +internal sealed class SlidingDetails +{ + private readonly TimeProvider _timeProvider; + + /// + /// Initializes a new with a sliding expiry window. + /// + public SlidingDetails(TimeSpan relativeExpiry, TimeProvider? timeProvider = null) + { + _timeProvider = timeProvider ?? TimeProvider.System; + RelativeExpiry = relativeExpiry; + Slide(); + } + + private TimeSpan RelativeExpiry { get; set; } + + // Stored as UTC ticks so Volatile.Read/Write provide atomic 64-bit access. + // DateTimeOffset is 16 bytes and can tear on weak memory models. + private long _expireAtUtcTicks; + + /// + /// Returns true if the sliding window has elapsed. When false, + /// gives the caller the remaining time before the next expiry check should run. + /// + public bool CanExpire(out TimeSpan tryAfter) + { + var expireTicks = Volatile.Read(ref _expireAtUtcTicks); + var nowTicks = _timeProvider.GetUtcNow().UtcTicks; + tryAfter = TimeSpan.FromTicks(expireTicks - nowTicks); + return tryAfter.Ticks <= 0; + } + + /// + /// Resets the sliding window so the expiry is from now. + /// + public void Slide() + { + var newTicks = _timeProvider.GetUtcNow().Add(RelativeExpiry).UtcTicks; + Volatile.Write(ref _expireAtUtcTicks, newTicks); + } +} diff --git a/src/ServiceConnect.Persistence.InMemory/DeepClone.cs b/src/ServiceConnect.Persistence.InMemory/DeepClone.cs new file mode 100644 index 000000000..474e20b1e --- /dev/null +++ b/src/ServiceConnect.Persistence.InMemory/DeepClone.cs @@ -0,0 +1,65 @@ +using System.Text.Json; +using System.Text.Json.Serialization; + +namespace ServiceConnect.Persistence.InMemory; + +/// +/// Round-trip JSON clone used by the in-memory persistors to isolate callers from +/// stored state. Without this, Insert stores the caller's reference and Get returns +/// the stored reference — any subsequent mutation on either side silently corrupts +/// the other. +/// +/// +/// +/// System.Text.Json, not BSON. The previous implementation round-tripped through +/// MongoDB.Bson so that explicit-interface auto-properties were preserved. That coupling +/// dragged the BSON serialization package into every consumer of +/// ServiceConnect.Persistence.InMemory — surprising for a package whose tagline is +/// "in-memory, no broker, no database." STJ is part of the .NET BCL on every supported +/// target framework, costs no extra package reference, and round-trips every regular +/// public property in a saga or aggregator's data shape. Sagas whose data uses +/// explicit-interface auto-properties with backing fields are not supported by the +/// in-memory persistor — use the MongoDB persistor for that edge case, or expose the +/// backing field via a public property. +/// +/// +/// Polymorphism. Serializing against value.GetType() instead of the +/// declared T makes STJ emit the runtime type's properties rather than just the +/// base's. Nested polymorphic values still need [JsonDerivedType] attributes to +/// round-trip; the in-memory persistors document this in their xmldoc. +/// +/// +/// Security boundary. The output of this clone NEVER leaves the AppDomain — +/// input is always trusted in-process state. Do not extend this helper to deserialise +/// external input, configuration, or network payloads. +/// +/// +internal static class DeepClone +{ + private static readonly JsonSerializerOptions Options = new() + { + // Cover public fields too, not just auto-properties. Some saga data shapes use + // public readonly fields for invariants set in the constructor; without this + // the field's value would be silently dropped through the round-trip. + IncludeFields = true, + // Keep enums as numeric values — matches the on-the-wire behaviour of the bus's + // own SystemTextJsonMessageSerializer; switching to JsonStringEnumConverter would + // make the in-memory store's "stored shape" diverge from what Mongo persists. + DefaultIgnoreCondition = JsonIgnoreCondition.Never, + }; + + /// + /// Round-trips through System.Text.Json to produce a deep + /// clone. Serializes against the runtime type so derived-class properties survive + /// when the caller's static type is a base. + /// + public static T Clone(T value) where T : notnull + { + var runtimeType = value.GetType(); + var bytes = JsonSerializer.SerializeToUtf8Bytes(value, runtimeType, Options); + var clone = JsonSerializer.Deserialize(bytes, runtimeType, Options) + ?? throw new InvalidOperationException( + $"Deep clone of {runtimeType.FullName} returned null."); + return (T)clone; + } +} diff --git a/src/ServiceConnect.Persistence.InMemory/InMemoryPersistenceExtensions.cs b/src/ServiceConnect.Persistence.InMemory/InMemoryPersistenceExtensions.cs new file mode 100644 index 000000000..379bdcf9e --- /dev/null +++ b/src/ServiceConnect.Persistence.InMemory/InMemoryPersistenceExtensions.cs @@ -0,0 +1,86 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.DependencyInjection.Extensions; +using Microsoft.Extensions.Logging; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Persistence.InMemory; + +/// +/// Adds the in-memory persistence services used by ServiceConnect. +/// +public static class InMemoryPersistenceExtensions +{ + /// + /// Registers the in-memory persistence implementation with the builder. + /// + /// + /// + /// Intended for development and tests. All state is held in-process in + /// and is not durable across restarts. This is the + /// right choice for unit and integration tests that need a real persistor without provisioning + /// infrastructure, and for local development. + /// + /// + /// Do not use in production. A process restart loses every in-flight process-manager + /// instance, every pending aggregator group, and every scheduled timeout. Use a durable + /// persistor (e.g. UseMongoDbPersistence) for production deployments. + /// + /// + /// When the in-memory persistence singleton is first resolved (typically at bus build) this + /// method emits a -level log under the + /// ServiceConnect.Persistence.InMemory.InMemoryPersistenceState category (any filter on + /// the ServiceConnect.Persistence.InMemory prefix matches it). The warning fires once + /// per — building two providers in the same process produces + /// two warnings. To silence in test runs, raise the category's minimum level to + /// via standard Microsoft.Extensions.Logging filter + /// configuration. + /// + /// + /// The ServiceConnect builder. + /// + /// Optional delegate to customise before registration. + /// When omitted the defaults (e.g. a five-minute lock-lease duration) are used. + /// + public static ServiceConnectBuilder UseInMemoryPersistence( + this ServiceConnectBuilder builder, + Action? configure = null) + { + // Build the options instance once at extension-call time so the configure + // delegate's customisations are captured before AddRegistration's callback + // is invoked (the callback may be called more than once; options must not change). + var options = new InMemoryPersistenceOptions(); + configure?.Invoke(options); + + builder.AddRegistration(services => + { + services.TryAddSingleton(); + services.TryAddSingleton(options); + services.TryAddSingleton(sp => + { + var logger = sp.GetRequiredService>(); + InMemoryPersistenceLog.InMemoryPersistenceRegistered(logger); + return new InMemoryPersistenceState(sp.GetRequiredService()); + }); + services.TryAddSingleton(sp => + sp.GetRequiredService().Provider); + services.TryAddSingleton(sp => + (IKeyValueStore)sp.GetRequiredService().Provider); + services.TryAddSingleton(sp => + new InMemoryAggregatorPersistor(sp.GetRequiredService())); + services.TryAddSingleton(sp => + new InMemoryProcessManagerFinder( + sp.GetRequiredService(), + sp.GetRequiredService())); + services.TryAddSingleton(sp => + new InMemoryTimeoutStore( + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService())); + services.TryAddSingleton(sp => + sp.GetRequiredService()); + services.TryAddSingleton(sp => + sp.GetRequiredService()); + }); + return builder; + } +} diff --git a/src/ServiceConnect.Persistence.InMemory/InMemoryPersistenceLog.cs b/src/ServiceConnect.Persistence.InMemory/InMemoryPersistenceLog.cs new file mode 100644 index 000000000..31d5abfb7 --- /dev/null +++ b/src/ServiceConnect.Persistence.InMemory/InMemoryPersistenceLog.cs @@ -0,0 +1,21 @@ +using Microsoft.Extensions.Logging; + +namespace ServiceConnect.Persistence.InMemory; + +/// +/// Source-generated logger entries emitted by the in-memory persistence package. +/// +internal static partial class InMemoryPersistenceLog +{ + /// + /// Stable event id for the one-shot registration warning. + /// + public const int InMemoryPersistenceRegisteredEventId = 1; + + [LoggerMessage( + EventId = InMemoryPersistenceRegisteredEventId, + EventName = "InMemoryPersistenceRegistered", + Level = LogLevel.Warning, + Message = "In-memory persistence is registered. State is held in-process and is not durable across restarts. This is intended for development and tests; use a real persistor (e.g. MongoDB) in production.")] + public static partial void InMemoryPersistenceRegistered(ILogger logger); +} diff --git a/src/ServiceConnect.Persistence.InMemory/InMemoryPersistenceOptions.cs b/src/ServiceConnect.Persistence.InMemory/InMemoryPersistenceOptions.cs new file mode 100644 index 000000000..3af958693 --- /dev/null +++ b/src/ServiceConnect.Persistence.InMemory/InMemoryPersistenceOptions.cs @@ -0,0 +1,19 @@ +namespace ServiceConnect.Persistence.InMemory; + +/// +/// Configuration for the in-memory persistence stores. Populated via the +/// configure callback passed to UseInMemoryPersistence(opts => …); +/// properties are get; set; rather than init so callbacks can mutate +/// them post-construction (the callback runs after new InMemoryPersistenceOptions() +/// inside UseInMemoryPersistence, which is not an init-context). Matches the +/// shape of MongoDbPersistenceOptions. +/// +public sealed class InMemoryPersistenceOptions +{ + /// + /// Lease duration applied when claiming a timeout for dispatch via + /// . + /// Mirrors MongoDbPersistenceOptions.TimeoutLockLeaseDuration. Must be positive. + /// + public TimeSpan LockLeaseDuration { get; set; } = TimeSpan.FromMinutes(5); +} diff --git a/src/ServiceConnect.Persistence.InMemory/InMemoryPersistenceState.cs b/src/ServiceConnect.Persistence.InMemory/InMemoryPersistenceState.cs new file mode 100644 index 000000000..e7e48f5c7 --- /dev/null +++ b/src/ServiceConnect.Persistence.InMemory/InMemoryPersistenceState.cs @@ -0,0 +1,73 @@ +namespace ServiceConnect.Persistence.InMemory; + +/// +/// Shared in-process state store for the in-memory persistence implementation. +/// +/// +/// Intended for development and tests. All state held by this type is in-process and +/// is not durable across restarts. Use UseMongoDbPersistence or another durable +/// persistor for production. UseInMemoryPersistence emits a startup warning when this +/// type is materialised; see that method's remarks for filtering guidance. +/// +internal sealed class InMemoryPersistenceState : IDisposable +{ + private int _disposed; + private readonly IDisposable? _ownedProvider; + private readonly IDisposable? _ownedSagaProvider; + + public InMemoryPersistenceState(TimeProvider? timeProvider = null) + { + var cp = new CacheProvider(timeProvider); + Provider = cp; + _ownedProvider = cp; + + // Dedicated saga store. Public IKeyValueStore consumers see Provider only; + // saga state lives in this private SagaProvider where no user code can reach it. + var sagaCp = new CacheProvider(timeProvider); + SagaProvider = sagaCp; + _ownedSagaProvider = sagaCp; + } + + /// + /// Test-seam constructor: accepts externally-supplied s + /// so tests can control both behaviours independently — e.g. to deterministically + /// reproduce the Contains→TryGet concurrency window in the saga finder. + /// + internal InMemoryPersistenceState(ICacheProvider provider, ICacheProvider sagaProvider) + { + Provider = provider ?? throw new ArgumentNullException(nameof(provider)); + SagaProvider = sagaProvider ?? throw new ArgumentNullException(nameof(sagaProvider)); + _ownedProvider = null; // caller owns lifetime + _ownedSagaProvider = null; + } + + public ICacheProvider Provider { get; } + + /// + /// Saga-specific store used exclusively by . + /// Not registered in DI and not reachable through the public + /// or surface, so user code cannot observe or corrupt saga state. + /// + public ICacheProvider SagaProvider { get; } + + public ReaderWriterLockSlim SyncRoot { get; } = new(); + public SortedSet TimeoutIndex { get; } = new(TimeoutEntryComparer.Instance); + public Dictionary TimeoutsById { get; } = []; + + /// + /// Disposes the owned instances (which hold + /// registrations) and the (which holds kernel + /// handles). Without this, every DI rebuild leaks both. Idempotent. + /// + public void Dispose() + { + if (Interlocked.Exchange(ref _disposed, 1) != 0) + { + return; + } + + _ownedProvider?.Dispose(); + _ownedSagaProvider?.Dispose(); + SyncRoot.Dispose(); + } +} diff --git a/src/ServiceConnect.Persistence.InMemory/ProcessManager/InMemoryProcessManagerFinder.cs b/src/ServiceConnect.Persistence.InMemory/ProcessManager/InMemoryProcessManagerFinder.cs new file mode 100644 index 000000000..e51d6cd06 --- /dev/null +++ b/src/ServiceConnect.Persistence.InMemory/ProcessManager/InMemoryProcessManagerFinder.cs @@ -0,0 +1,362 @@ +using System.Linq.Expressions; +using System.Reflection; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Exceptions; + +namespace ServiceConnect.Persistence.InMemory; + +/// +/// InMemory implementation of IProcessManagerFinder for testing and rapid development. +/// Compiled predicates are cached by mapping shape so correlation lookups avoid both +/// Expression.Compile and reflection on the hot path. +/// +/// +/// Intended for development and tests. Process-manager state is held in-process and is +/// not durable across restarts; in-flight process-manager instances are lost on restart. Use a +/// durable implementation (e.g. +/// the MongoDB finder) for production. +/// +internal sealed class InMemoryProcessManagerFinder : IProcessManagerFinder +{ + private readonly ProcessManagerPredicateCache _cache; + private readonly InMemoryPersistenceState _state; + + internal InMemoryProcessManagerFinder(ProcessManagerPredicateCache cache, TimeProvider? timeProvider = null) + : this(cache, new InMemoryPersistenceState(timeProvider)) { } + + internal InMemoryProcessManagerFinder(ProcessManagerPredicateCache cache, InMemoryPersistenceState state) + { + _cache = cache ?? throw new ArgumentNullException(nameof(cache)); + _state = state ?? throw new ArgumentNullException(nameof(state)); + } + + private const long InitialVersion = 1L; + + /// + /// Finds persisted process manager data that matches the supplied message mapping. + /// + public Task?> FindDataAsync(IProcessManagerPropertyMapper mapper, Message message, CancellationToken cancellationToken = default) where T : class, IProcessManagerData + { + cancellationToken.ThrowIfCancellationRequested(); + ArgumentNullException.ThrowIfNull(mapper); + ArgumentNullException.ThrowIfNull(message); + + // Single-pass scan: prefer an exact message-type match, fall back to the base + // Message wildcard in one iteration of the mapping list. + var exactMessageType = message.GetType(); + ProcessManagerToMessageMap? mapping = null; + ProcessManagerToMessageMap? fallback = null; + foreach (var m in mapper.Mappings) + { + if (m.MessageType == exactMessageType) { mapping = m; break; } + if (fallback == null && m.MessageType == typeof(Message)) + { + fallback = m; + } + } + mapping ??= fallback; + + if (mapping == null) + { + throw new InvalidOperationException( + $"No property mapping configured for message type '{message.GetType().FullName}' or the base Message type."); + } + + object? msgPropValue; + try + { + msgPropValue = mapping.MessageProp.Invoke(message); + } + catch (Exception ex) + { + throw new PersistenceException( + $"Failed to evaluate message property mapping for message type '{message.GetType().Name}'.", ex); + } + + if (msgPropValue is null) + { + throw new ArgumentException("Message property expression evaluates to null", nameof(message)); + } + + var predicate = GetPredicate(mapping.PropertiesHierarchy, msgPropValue.GetType()); + + _state.SyncRoot.EnterReadLock(); + try + { + return Task.FromResult?>(FindMatchingItem(msgPropValue, predicate)); + } + finally + { + _state.SyncRoot.ExitReadLock(); + } + } + + /// + /// Iterates the saga store looking for a row whose -typed + /// payload satisfies . + /// + /// + /// Multi-saga support: this implementation iterates every entry in the + /// partitioned saga provider, and the keys are bare correlation-id strings (no + /// type prefix). Entries whose wrapper type does not match + /// are skipped — hosting multiple saga types through a single finder instance is + /// supported, with linear-in-total-rows lookup overhead. For high-row-count + /// production deployments use the Mongo persistor instead (per-saga-type + /// collections give O(log n) lookup via the unique CorrelationId index). + /// + private MemoryData? FindMatchingItem(object msgPropValue, Func, object, bool> predicate) + where T : class, IProcessManagerData + { + foreach (var key in _state.SagaProvider.Keys()) + { + if (!_state.SagaProvider.TryGet(key.ToString()!, out var value) || value is null) + { + continue; // removed concurrently by another DeleteDataAsync on the partitioned saga store + } + + if (value is MemoryData typed) + { + if (predicate(typed, msgPropValue)) + { + // Carry Id forward so callers see the same stable Guid that was + // stamped at insert — matches Mongo's persisted _id contract. + return new MemoryData { Id = typed.Id, Data = DeepClone.Clone(typed.Data), Version = typed.Version }; + } + } + // Skip entries whose wrapper type doesn't match T. Mongo persists each saga type to + // its own collection so a FindData query never returns TB rows; the InMemory + // store uses a single flat dictionary keyed by correlation-id-as-string, so we + // simply pass over unrelated saga types. Hosting >1 saga type per worker (a common + // dev/test topology) used to throw `InvalidOperationException` here — which is + // not a `ConcurrencyException`, so the dispatcher had no retry path and the + // worker dispatched permanently-failed messages instead of resolving the saga. + } + return null; + } + + private Func, object, bool> GetPredicate( + IReadOnlyDictionary propertiesHierarchy, Type propertyType) + where T : class, IProcessManagerData + { + var cacheKey = new ProcessManagerPredicateCache.PredicateCacheKey(typeof(T), propertiesHierarchy, propertyType); + var compiled = _cache.CompiledPredicates.GetOrAdd(cacheKey, static key => + { + var dataParam = Expression.Parameter(typeof(MemoryData<>).MakeGenericType(key.T), "d"); + var valueParam = Expression.Parameter(typeof(object), "value"); + + Expression left = Expression.Property(dataParam, dataParam.Type.GetProperty(nameof(MemoryData.Data))!); + foreach (var prop in key.PropertiesHierarchy.Reverse()) + { + // Resolve the property by walking the type AND its implemented interfaces, + // so explicit-interface impls (where the property isn't reachable by string + // name on the runtime type) are matched via their declaring-type PropertyInfo. + var propInfo = left.Type.GetProperty(prop.Key, + BindingFlags.Public | BindingFlags.Instance | BindingFlags.FlattenHierarchy) + ?? left.Type.GetInterfaces() + // Property names in PropertiesHierarchy are expected to be unambiguous across + // a saga type's implemented interfaces. If two interfaces declare the same + // property name, FirstOrDefault here picks whichever the runtime returns first. + .Select(i => i.GetProperty(prop.Key, BindingFlags.Public | BindingFlags.Instance)) + .FirstOrDefault(p => p is not null) + ?? throw new InvalidOperationException( + $"Property '{prop.Key}' not found on type '{left.Type.FullName}' or its interfaces."); + left = Expression.MakeMemberAccess(left, propInfo); + } + + Expression right = Expression.Convert(valueParam, key.PropertyType); + var eq = Expression.Equal(left, right); + + var delegateType = typeof(Func<,,>).MakeGenericType(dataParam.Type, typeof(object), typeof(bool)); + return Expression.Lambda(delegateType, eq, dataParam, valueParam).Compile(); + }); + return (Func, object, bool>)compiled; + } + + /// + /// Inserts a new process manager record into the in-memory store. + /// + public Task InsertDataAsync(IProcessManagerData data, CancellationToken cancellationToken = default) + { + cancellationToken.ThrowIfCancellationRequested(); + ArgumentNullException.ThrowIfNull(data); + + var factory = _cache.MemoryDataFactories.GetOrAdd(data.GetType(), BuildMemoryDataFactory); + // Deep-clone before storing so the caller's subsequent mutations (or a worker + // retrying with its in-memory snapshot) do not mutate state already persisted. + var memoryData = factory(DeepClone.Clone(data)); + + _state.SyncRoot.EnterWriteLock(); + try + { + string key = data.CorrelationId.ToString(); + if (_state.SagaProvider.Contains(key)) + { + // Concurrent first-message delivery for the same CorrelationId. Surface as + // ConcurrencyException to match MongoDbProcessManagerFinder so callers (and + // ProcessManagerProcessor's retry loop, which only retries on + // ConcurrencyException) see a consistent contract across persistors. + throw new ConcurrencyException( + $"Concurrent insert detected for CorrelationId '{data.CorrelationId}'; another writer committed first."); + } + + // Saga state has no TTL: lifetime is managed explicitly via Delete. + // Background expiry must never silently drop a live saga. + _state.SagaProvider.Add(key, memoryData); + } + finally + { + _state.SyncRoot.ExitWriteLock(); + } + + return Task.CompletedTask; + } + + // One-time compiled factory per concrete data type, avoiding per-call reflection + // (GetMethods + MakeGenericMethod + Invoke) on the hot persistence path. + private static Func BuildMemoryDataFactory(Type dataType) + { + var memoryDataType = typeof(MemoryData<>).MakeGenericType(dataType); + var param = Expression.Parameter(typeof(IProcessManagerData), "d"); + var casted = Expression.Convert(param, dataType); + var dataProp = memoryDataType.GetProperty(nameof(MemoryData.Data))!; + var versionProp = memoryDataType.GetProperty(nameof(MemoryData.Version))!; + var idProp = memoryDataType.GetProperty(nameof(MemoryData.Id))!; + var guidNewGuid = typeof(Guid).GetMethod(nameof(Guid.NewGuid))!; + var initExpr = Expression.MemberInit( + Expression.New(memoryDataType), + Expression.Bind(dataProp, casted), + Expression.Bind(versionProp, Expression.Constant(InitialVersion)), + Expression.Bind(idProp, Expression.Call(guidNewGuid))); + var lambda = Expression.Lambda>( + Expression.Convert(initExpr, typeof(object)), param); + return lambda.Compile(); + } + + /// + /// Updates an existing process manager record if its version matches. + /// + public Task UpdateDataAsync(IPersistenceData data, CancellationToken cancellationToken = default) where T : class, IProcessManagerData + { + ArgumentNullException.ThrowIfNull(data); + cancellationToken.ThrowIfCancellationRequested(); + + _state.SyncRoot.EnterWriteLock(); + try + { + var newData = (MemoryData)data; + string key = data.Data.CorrelationId.ToString(); + + if (!_state.SagaProvider.Contains(key)) + { + throw new PersistenceException( + $"ProcessManagerData with CorrelationId {key} does not exist in memory."); + } + + // Read version via a typed IVersioned interface so the cast is + // compile-time-checked rather than the old dynamic dispatch. + // TryGet distinguishes "absent" from "present with null"; a false return here means + // a concurrent DeleteDataAsync raced the Contains check above. + if (!_state.SagaProvider.TryGet(key, out var storedData) || storedData is null) + { + throw new ConcurrencyException( + $"Concurrency conflict: ProcessManagerData with CorrelationId {key} was concurrently removed by another saga delete."); + } + + long currentVersion = storedData is IVersioned versioned + ? versioned.Version + : throw new PersistenceException( + $"Stored item for CorrelationId {key} is of unexpected type {storedData.GetType()} and does not implement IVersioned."); + + if (currentVersion != newData.Version) + { + // Stale-version conflict — ProcessManagerProcessor retries on this type. + throw new ConcurrencyException( + $"Concurrency conflict: ProcessManagerData with CorrelationId {key} and Version {currentVersion} could not be updated."); + } + + // Extract the stored Id via IIdentified (analogous to IVersioned above) so + // the pattern-match is safe even when the stored MemoryData does + // not share a generic parameter with the caller's T (e.g. UpdateDataAsync + // called with T=IProcessManagerData for a row stored as MemoryData). + Guid existingId = storedData is IIdentified identified + ? identified.Id + : Guid.Empty; // unreachable: all stored rows go through BuildMemoryDataFactory which produces MemoryData : IIdentified + + _state.SagaProvider.Update(key, new MemoryData + { + // Preserve the stable Id that was stamped at insert — mirrors Mongo's + // persisted _id which survives every subsequent update to the document. + Id = existingId, + // Deep-clone on update so the caller's subsequent mutations do not + // leak into the stored snapshot. Matches Insert semantics. + Data = DeepClone.Clone(data.Data), + Version = newData.Version + 1 + }); + + // Reflect the store-side increment back to the caller so consecutive updates + // using the same MemoryData instance don't fail the concurrency check. + // Matches the Mongo persistor behaviour: FindOneAndUpdate returns the post-update + // document, so the caller's Version stays in sync with the store. + newData.Version++; + } + finally + { + _state.SyncRoot.ExitWriteLock(); + } + + return Task.CompletedTask; + } + + /// + /// Deletes the stored process manager record identified by the supplied data. + /// Enforces optimistic concurrency — delete fails with + /// if the stored version does not match or the record is missing, matching the update + /// contract so a delete cannot race an in-flight update and silently drop a saga. + /// + public Task DeleteDataAsync(IPersistenceData data, CancellationToken cancellationToken = default) where T : class, IProcessManagerData + { + cancellationToken.ThrowIfCancellationRequested(); + ArgumentNullException.ThrowIfNull(data); + + var expected = (MemoryData)data; + + _state.SyncRoot.EnterWriteLock(); + try + { + string key = data.Data.CorrelationId.ToString(); + if (!_state.SagaProvider.Contains(key)) + { + throw new ConcurrencyException( + $"Concurrency conflict: ProcessManagerData with CorrelationId {key} does not exist and cannot be deleted."); + } + + // TryGet distinguishes "absent" from "present with null"; a false return here means + // a concurrent DeleteDataAsync raced the Contains check above. + if (!_state.SagaProvider.TryGet(key, out var stored) || stored is null) + { + throw new ConcurrencyException( + $"Concurrency conflict: ProcessManagerData with CorrelationId {key} was concurrently removed by another saga delete."); + } + + long currentVersion = stored is IVersioned versioned + ? versioned.Version + : throw new PersistenceException( + $"Stored item for CorrelationId {key} is of unexpected type {stored.GetType()} and does not implement IVersioned."); + + if (currentVersion != expected.Version) + { + throw new ConcurrencyException( + $"Concurrency conflict: ProcessManagerData with CorrelationId {key} and Version {currentVersion} could not be deleted."); + } + + _state.SagaProvider.Remove(key); + } + finally + { + _state.SyncRoot.ExitWriteLock(); + } + + return Task.CompletedTask; + } + +} diff --git a/src/ServiceConnect.Persistence.InMemory/ProcessManager/MemoryData.cs b/src/ServiceConnect.Persistence.InMemory/ProcessManager/MemoryData.cs new file mode 100644 index 000000000..85e7cdc34 --- /dev/null +++ b/src/ServiceConnect.Persistence.InMemory/ProcessManager/MemoryData.cs @@ -0,0 +1,24 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Persistence.InMemory; + +/// +/// Wraps persisted process manager data with an identifier and version. +/// +internal sealed class MemoryData : IPersistenceData, IVersioned, IIdentified where T : class, IProcessManagerData +{ + /// + /// Gets or sets the storage identifier for this entry. + /// + public Guid Id { get; set; } + + /// + /// Gets or sets the optimistic concurrency version for this entry. + /// + public long Version { get; set; } + + /// + /// Gets or sets the process manager data payload. + /// + public required T Data { get; set; } +} diff --git a/src/ServiceConnect.Persistence.InMemory/ProcessManager/ProcessManagerPredicateCache.cs b/src/ServiceConnect.Persistence.InMemory/ProcessManager/ProcessManagerPredicateCache.cs new file mode 100644 index 000000000..a89b61033 --- /dev/null +++ b/src/ServiceConnect.Persistence.InMemory/ProcessManager/ProcessManagerPredicateCache.cs @@ -0,0 +1,82 @@ +using System.Collections.Concurrent; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Persistence.InMemory; + +/// +/// Singleton cache for compiled predicate delegates and MemoryData factories +/// used by . +/// Extracted from static fields to support proper DI lifetime management +/// and test isolation. +/// +internal sealed class ProcessManagerPredicateCache +{ + /// + /// Cached predicates of shape (MemoryData<T>, object) -> bool, keyed by mapping shape. + /// + public ConcurrentDictionary CompiledPredicates { get; } = new(); + + /// + /// Cached factories that produce MemoryData<TConcrete> from IProcessManagerData, keyed by concrete type. + /// + public ConcurrentDictionary> MemoryDataFactories { get; } = new(); + + internal readonly struct PredicateCacheKey : IEquatable + { + public readonly Type T; + public readonly IReadOnlyDictionary PropertiesHierarchy; + public readonly Type PropertyType; + + public PredicateCacheKey(Type t, IReadOnlyDictionary propertiesHierarchy, Type propertyType) + { + ArgumentNullException.ThrowIfNull(t); + ArgumentNullException.ThrowIfNull(propertiesHierarchy); + ArgumentNullException.ThrowIfNull(propertyType); + T = t; + PropertiesHierarchy = propertiesHierarchy; + PropertyType = propertyType; + } + + public bool Equals(PredicateCacheKey other) + { + if (T != other.T || PropertyType != other.PropertyType) + { + return false; + } + + if (PropertiesHierarchy.Count != other.PropertiesHierarchy.Count) + { + return false; + } + + foreach (var kvp in PropertiesHierarchy) + { + if (!other.PropertiesHierarchy.TryGetValue(kvp.Key, out var otherType) || otherType != kvp.Value) + { + return false; + } + } + return true; + } + + public override bool Equals(object? obj) => obj is PredicateCacheKey k && Equals(k); + + public override int GetHashCode() + { + var hash = new HashCode(); + hash.Add(T); + hash.Add(PropertyType); + // XOR-combine per-entry hashes so the result is independent of the + // dictionary's (undefined) iteration order. Otherwise Equals + // could be true while GetHashCode disagreed, violating the contract. + int entryHash = 0; + foreach (var kvp in PropertiesHierarchy) + { + entryHash ^= HashCode.Combine(kvp.Key, kvp.Value); + } + + hash.Add(entryHash); + return hash.ToHashCode(); + } + } +} diff --git a/src/ServiceConnect.Persistence.InMemory/ServiceConnect.Persistence.InMemory.csproj b/src/ServiceConnect.Persistence.InMemory/ServiceConnect.Persistence.InMemory.csproj new file mode 100644 index 000000000..6b634a162 --- /dev/null +++ b/src/ServiceConnect.Persistence.InMemory/ServiceConnect.Persistence.InMemory.csproj @@ -0,0 +1,38 @@ + + + + ServiceConnect.Persistence.InMemory + ServiceConnect.Persistence.InMemory + ServiceConnect.Persistence.InMemory + enable + enable + ServiceConnect.Persistence.InMemory + In-memory process manager, aggregator and timeout persistence for ServiceConnect. Intended for development and test scenarios; data does not survive process restart. + ServiceConnect;Persistence;InMemory;MessageBus;Messaging;Message;Bus;Service + + + + + <_Parameter1>ServiceConnect.UnitTests + + + <_Parameter1>ServiceConnect.EndToEndTests + + + + <_Parameter1>DynamicProxyGenAssembly2 + + + + + + + + + + + + + + diff --git a/src/ServiceConnect.Persistence.InMemory/Timeout/InMemoryTimeoutStore.cs b/src/ServiceConnect.Persistence.InMemory/Timeout/InMemoryTimeoutStore.cs new file mode 100644 index 000000000..442051c16 --- /dev/null +++ b/src/ServiceConnect.Persistence.InMemory/Timeout/InMemoryTimeoutStore.cs @@ -0,0 +1,281 @@ +using System.Diagnostics; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Exceptions; + +namespace ServiceConnect.Persistence.InMemory; + +/// +/// Stores timeout messages in process memory for local execution. +/// +/// +/// Intended for development and tests. Scheduled timeouts are held in-process and are +/// lost on restart. Use a durable +/// implementation (e.g. the MongoDB timeout store) for production. +/// +internal sealed class InMemoryTimeoutStore : ITimeoutStore, IDisposable +{ + private readonly TimeProvider _timeProvider; + private readonly InMemoryPersistenceState _state; + private readonly TimeSpan _lockLeaseDuration; + + // True when this store created its own _state in the public ctor; false when an + // external state was supplied via the internal ctor (e.g. shared by a sibling + // InMemoryProcessManagerFinder). Dispose only tears down the state when owned. + private readonly bool _ownsState; + private int _disposed; + + /// + /// Initializes a new instance with the supplied options. + /// + public InMemoryTimeoutStore(InMemoryPersistenceOptions options, TimeProvider? timeProvider = null) + : this(options, new InMemoryPersistenceState(timeProvider), timeProvider) + { + _ownsState = true; + } + + internal InMemoryTimeoutStore( + InMemoryPersistenceOptions options, + InMemoryPersistenceState state, + TimeProvider? timeProvider = null) + { + ArgumentNullException.ThrowIfNull(options); + if (options.LockLeaseDuration <= TimeSpan.Zero) + { + throw new ArgumentOutOfRangeException( + nameof(options), + options.LockLeaseDuration, + $"{nameof(InMemoryPersistenceOptions.LockLeaseDuration)} must be positive."); + } + _state = state ?? throw new ArgumentNullException(nameof(state)); + _timeProvider = timeProvider ?? TimeProvider.System; + _lockLeaseDuration = options.LockLeaseDuration; + _ownsState = false; + } + + /// + /// Adds a timeout to the in-memory store. + /// + public Task InsertTimeoutAsync(TimeoutData timeoutData, CancellationToken cancellationToken = default) + { + ArgumentNullException.ThrowIfNull(timeoutData); + if (timeoutData.Id == Guid.Empty) + { + throw new ArgumentException("TimeoutData.Id must not be Guid.Empty.", nameof(timeoutData)); + } + + cancellationToken.ThrowIfCancellationRequested(); + + var storedTimeout = Clone(timeoutData); + + _state.SyncRoot.EnterWriteLock(); + try + { + if (_state.TimeoutsById.ContainsKey(storedTimeout.Id)) + { + throw new PersistenceException($"TimeoutData with Id {storedTimeout.Id} already exists."); + } + + var entry = new TimeoutEntry(storedTimeout.Time, storedTimeout.Id, storedTimeout); + _state.TimeoutsById[storedTimeout.Id] = entry; + _state.TimeoutIndex.Add(entry); + } + finally + { + _state.SyncRoot.ExitWriteLock(); + } + + return Task.CompletedTask; + } + + /// + /// Returns due timeouts. Callers poll on a fixed cadence; per-batch next-query hints + /// are not exposed because no consumer reads them. + /// + public Task GetTimeoutsBatchAsync(int? batchSize = null, CancellationToken cancellationToken = default) + { + if (batchSize.HasValue && batchSize.Value <= 0) + { + throw new ArgumentOutOfRangeException(nameof(batchSize), batchSize.Value, "batchSize must be greater than zero when supplied."); + } + + cancellationToken.ThrowIfCancellationRequested(); + + DateTimeOffset utcNow = _timeProvider.GetUtcNow(); + var sessionId = Guid.NewGuid(); + var due = new List(); + + _state.SyncRoot.EnterWriteLock(); + try + { + foreach (var entry in _state.TimeoutIndex) + { + if (entry.Time > utcNow) + { + break; + } + + if (!entry.Data.Locked || entry.Data.LockExpiresAt <= utcNow) + { + // In-place mutation under the write lock: _state.TimeoutsById and _state.TimeoutIndex + // hold the same TimeoutEntry reference, so the index is the single source of truth. + // The clone in due.Add isolates the caller from subsequent mutations. + entry.Data.Locked = true; + entry.Data.LockedBy = sessionId; + entry.Data.LockExpiresAt = utcNow + _lockLeaseDuration; + due.Add(Clone(entry.Data)); + + if (batchSize is { } cap && due.Count >= cap) + { + break; + } + } + // Due-but-leased rows are skipped this poll; the next fixed-cadence poll + // (or the lease reaper if one is configured) will reclaim them once the + // lease expires. + } + } + finally + { + _state.SyncRoot.ExitWriteLock(); + } + + return Task.FromResult(new TimeoutsBatch { DueTimeouts = due }); + } + + private static TimeoutData Clone(TimeoutData timeoutData) + { + return new TimeoutData + { + Id = timeoutData.Id, + Destination = timeoutData.Destination, + ProcessManagerId = timeoutData.ProcessManagerId, + Time = timeoutData.Time, + Headers = timeoutData.Headers.ToDictionary(static pair => pair.Key, static pair => CloneHeaderValue(pair.Value), StringComparer.Ordinal), + Locked = timeoutData.Locked, + LockedBy = timeoutData.LockedBy, + LockExpiresAt = timeoutData.LockExpiresAt, + }; + } + + private static object CloneHeaderValue(object value) + { + return value switch + { + byte[] bytes => (byte[])bytes.Clone(), + // Strings and value types are immutable / pass-by-value — return as-is. + string or ValueType => value, + // Any other reference type: deep-clone to prevent caller mutations leaking + // into stored snapshot. Mirror the deep-clone behaviour the aggregator + // persistor uses on Insert/Get for the same reason. + _ => DeepClone.Clone(value), + }; + } + + /// + /// Disposes the owned if this store created + /// it (public ctor path). Externally-supplied state (internal ctor path) is left + /// alone — its lifetime belongs to the supplier. + /// + public void Dispose() + { + if (Interlocked.Exchange(ref _disposed, 1) != 0) + { + return; + } + + if (_ownsState) + { + _state.Dispose(); + } + } + + /// + public Task RemoveDispatchedTimeoutAsync(Guid id, Guid? lockOwner = null, CancellationToken cancellationToken = default) + { + cancellationToken.ThrowIfCancellationRequested(); + + _state.SyncRoot.EnterWriteLock(); + try + { + var found = _state.TimeoutsById.TryGetValue(id, out var entry); + + if (lockOwner is { } owner) + { + // Lease-checked: a missing/unleased/mismatched-owner row, or a row whose + // lease window has elapsed, all mean "this caller no longer holds the lease" + // — surface as ConcurrencyException so parity with Mongo is preserved and + // callers don't silently miss invalidations. + var utcNow = _timeProvider.GetUtcNow(); + if (!found + || !entry!.Data.Locked + || entry.Data.LockedBy != owner + || entry.Data.LockExpiresAt is null + || entry.Data.LockExpiresAt <= utcNow) + { + throw new ConcurrencyException( + $"Lease for timeout '{id}' was invalidated; lock owner '{owner}' no longer holds the lease."); + } + } + else if (!found) + { + // Unconditional id-only path: caller's intent is "remove if present". + return Task.CompletedTask; + } + + _state.TimeoutsById.Remove(id); + var removed = _state.TimeoutIndex.Remove(entry!); + Debug.Assert(removed, "TimeoutIndex.Remove returned false; comparer drift between insert and remove."); + } + finally + { + _state.SyncRoot.ExitWriteLock(); + } + + return Task.CompletedTask; + } + + /// + public Task ReleaseDispatchedTimeoutAsync(Guid id, Guid? lockOwner = null, CancellationToken cancellationToken = default) + { + cancellationToken.ThrowIfCancellationRequested(); + + _state.SyncRoot.EnterWriteLock(); + try + { + var found = _state.TimeoutsById.TryGetValue(id, out var entry); + + if (lockOwner is { } owner) + { + // Lease-checked: a missing/unleased/mismatched-owner row, or a row whose + // lease window has elapsed, all mean "this caller no longer holds the lease" + // — surface as ConcurrencyException so parity with Mongo is preserved and + // callers don't silently miss invalidations. + var utcNow = _timeProvider.GetUtcNow(); + if (!found + || !entry!.Data.Locked + || entry.Data.LockedBy != owner + || entry.Data.LockExpiresAt is null + || entry.Data.LockExpiresAt <= utcNow) + { + throw new ConcurrencyException( + $"Lease for timeout '{id}' was invalidated; lock owner '{owner}' no longer holds the lease."); + } + } + else if (!found) + { + // Unconditional id-only path: caller's intent is "release if present". + return Task.CompletedTask; + } + + entry!.Data.Locked = false; + entry.Data.LockedBy = Guid.Empty; + entry.Data.LockExpiresAt = null; + } + finally + { + _state.SyncRoot.ExitWriteLock(); + } + + return Task.CompletedTask; + } +} diff --git a/src/ServiceConnect.Persistence.InMemory/Timeout/TimeoutEntry.cs b/src/ServiceConnect.Persistence.InMemory/Timeout/TimeoutEntry.cs new file mode 100644 index 000000000..34dbeaa30 --- /dev/null +++ b/src/ServiceConnect.Persistence.InMemory/Timeout/TimeoutEntry.cs @@ -0,0 +1,5 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Persistence.InMemory; + +internal sealed record TimeoutEntry(DateTimeOffset Time, Guid Id, TimeoutData Data); diff --git a/src/ServiceConnect.Persistence.InMemory/Timeout/TimeoutEntryComparer.cs b/src/ServiceConnect.Persistence.InMemory/Timeout/TimeoutEntryComparer.cs new file mode 100644 index 000000000..2185888cf --- /dev/null +++ b/src/ServiceConnect.Persistence.InMemory/Timeout/TimeoutEntryComparer.cs @@ -0,0 +1,32 @@ +namespace ServiceConnect.Persistence.InMemory; + +internal sealed class TimeoutEntryComparer : IComparer +{ + public static readonly TimeoutEntryComparer Instance = new(); + + public int Compare(TimeoutEntry? x, TimeoutEntry? y) + { + if (ReferenceEquals(x, y)) + { + return 0; + } + + if (x is null) + { + return -1; + } + + if (y is null) + { + return 1; + } + + int byTime = x.Time.CompareTo(y.Time); + if (byTime != 0) + { + return byTime; + } + + return x.Id.CompareTo(y.Id); + } +} diff --git a/src/ServiceConnect.Persistence.MongoDb/Aggregator/MongoDbAggregatorPersistor.cs b/src/ServiceConnect.Persistence.MongoDb/Aggregator/MongoDbAggregatorPersistor.cs new file mode 100644 index 000000000..53a33429e --- /dev/null +++ b/src/ServiceConnect.Persistence.MongoDb/Aggregator/MongoDbAggregatorPersistor.cs @@ -0,0 +1,826 @@ +using Microsoft.Extensions.Logging; +using MongoDB.Bson; +using MongoDB.Bson.Serialization; +using MongoDB.Bson.Serialization.Attributes; +using MongoDB.Driver; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Exceptions; + +namespace ServiceConnect.Persistence.MongoDb; + +/// +/// MongoDB implementation of IAggregatorPersistor. +/// Supports both standard and SSL connections via MongoDbPersistenceOptions. +/// +internal sealed class MongoDbAggregatorPersistor : IAggregatorPersistor +{ + private readonly IMongoCollection _collection; + private readonly IMongoClient _mongoClient; + private readonly ILogger _logger; + private readonly IMessageTypeRegistry _typeRegistry; + private readonly TimeProvider _timeProvider; + + // Monotonic per-process counter: assigned to each insert via Interlocked.Increment so + // rows that share an InsertedAtTicks value are still totally ordered within this process. + // Cross-process ties remain unsolved (the existing Id sort is the final tie-break) but + // per-(Name, CorrelationId) aggregator state is processed by a single consumer at a time, + // so per-process order matches the actual usage pattern. + private long _insertSequence; + + // Once the indexes are present we don't need to call createIndexes on every operation. + // MongoDB's createIndexes is idempotent server-side, but the round-trip is per-message + // on the hot path. After first success (or benign 85/86 conflict), short-circuit. + // Non-benign errors leave the flag at 0 so the next caller retries. + private int _indexed; + + // Serialises the first-call path so that N concurrent cold-start callers do not each + // fire CreateManyAsync. The outer Volatile.Read fast path avoids the semaphore on every + // subsequent call; the semaphore is only contested on cold start. Mirrors the lock used + // in MongoDbProcessManagerFinder._indexedCollections. + private readonly SemaphoreSlim _indexInitSemaphore = new(1, 1); + + // Mongo returns these codes when concurrent index creation detects that an index with + // the same keys (86) or options (85) already exists. Either way the index is present, + // so the ensure call has succeeded as far as the caller is concerned. + private static readonly HashSet BenignIndexCodes = [85, 86]; + + // Lease window for a GetSnapshot/RemoveSnapshot pair. A worker that crashes mid-flush + // holds the rows for at most this long before another worker may reclaim them; the + // next GetSnapshotAsync's filter accepts rows whose LockExpiresAt has elapsed. Five + // minutes is the same horizon MongoDbTimeoutStore uses for its row leases — long + // enough that a slow but live flush will not be interrupted, short enough that a + // crashed worker's rows are recoverable in the same operational window. + internal static readonly TimeSpan DefaultLeaseDuration = TimeSpan.FromMinutes(5); + + // The actual lease window for this instance — defaults to DefaultLeaseDuration; the + // internal ctor overload lets E2E tests inject a short window so lease-expiry behaviour + // can be exercised against a real broker within seconds. + private readonly TimeSpan _leaseDuration; + + static MongoDbAggregatorPersistor() + { + // Ensure the canonical Guid serializer is registered before any direct-ctor + // path serialises a Guid. DI factories also call this; the static ctor covers + // tests and custom compositions that bypass DI. + MongoDbPersistenceExtensions.EnsureGuidSerializerRegistered(); + } + + /// + /// Creates a persistor that stores aggregator data in the default Aggregator collection. + /// + /// The MongoDB client. + /// The persistence options used to select the database. + /// The logger used for unresolved message types. + /// The registry used to resolve stored message types. + /// Time source used to stamp aggregator inserts. + public MongoDbAggregatorPersistor(IMongoClient mongoClient, MongoDbPersistenceOptions options, ILogger logger, IMessageTypeRegistry typeRegistry, TimeProvider? timeProvider = null) + : this(mongoClient, options, "Aggregator", logger, typeRegistry, timeProvider) + { + } + + /// + /// Test-only ctor that lets E2E tests use the default collection name with a short + /// lease duration; production code uses the public ctors which default to + /// . + /// + internal MongoDbAggregatorPersistor( + IMongoClient mongoClient, + MongoDbPersistenceOptions options, + ILogger logger, + IMessageTypeRegistry typeRegistry, + TimeProvider? timeProvider, + TimeSpan? leaseDuration) + : this(mongoClient, options, "Aggregator", logger, typeRegistry, timeProvider, leaseDuration) + { + } + + /// + /// Creates a persistor that stores aggregator data in the specified collection. + /// + /// The MongoDB client. + /// The persistence options used to select the database. + /// The collection that stores aggregator records. + /// The logger used for unresolved message types. + /// The registry used to resolve stored message types. + /// Time source used to stamp aggregator inserts. + public MongoDbAggregatorPersistor(IMongoClient mongoClient, MongoDbPersistenceOptions options, string collectionName, ILogger logger, IMessageTypeRegistry typeRegistry, TimeProvider? timeProvider = null) + : this(mongoClient, options, collectionName, logger, typeRegistry, timeProvider, leaseDuration: null) + { + } + + /// + /// Test-only ctor that lets callers override the lease window so lease-expiry behaviour + /// can be exercised within seconds. Production code MUST go through the public ctors, + /// which default to — a too-short lease in production + /// admits duplicate dispatch when a flush legitimately runs longer than the window. + /// + internal MongoDbAggregatorPersistor( + IMongoClient mongoClient, + MongoDbPersistenceOptions options, + string collectionName, + ILogger logger, + IMessageTypeRegistry typeRegistry, + TimeProvider? timeProvider, + TimeSpan? leaseDuration) + { + ArgumentNullException.ThrowIfNull(mongoClient); + ArgumentNullException.ThrowIfNull(logger); + if (leaseDuration is { } lease && lease <= TimeSpan.Zero) + { + throw new ArgumentOutOfRangeException(nameof(leaseDuration), + "Aggregator lease duration must be strictly positive."); + } + _mongoClient = mongoClient; + _logger = logger; + _typeRegistry = typeRegistry ?? throw new ArgumentNullException(nameof(typeRegistry)); + _timeProvider = timeProvider ?? TimeProvider.System; + // Explicit leaseDuration (test path) wins; otherwise fall back to options.AggregatorLeaseDuration + // which itself defaults to DefaultLeaseDuration. The DefaultLeaseDuration constant remains as + // the documented type-level default for callers reading the public API. + var resolvedLease = leaseDuration ?? options.AggregatorLeaseDuration; + if (resolvedLease <= TimeSpan.Zero) + { + throw new ArgumentOutOfRangeException( + nameof(options), + $"MongoDbPersistenceOptions.AggregatorLeaseDuration must be strictly positive (was {resolvedLease})."); + } + _leaseDuration = resolvedLease; + + // Aggregator state is correctness-sensitive: w:0 makes RemoveDataAsync's IsAcknowledged + // gate silently succeed, breaking the documented ConcurrencyException contract on + // stale-version updates and allowing duplicate aggregate dispatch. Reject loudly at + // startup, mirroring MongoDbProcessManagerFinder. + if (!mongoClient.Settings.WriteConcern.IsAcknowledged) + { + throw new InvalidOperationException( + "MongoDbAggregatorPersistor requires an acknowledged WriteConcern (w:1 or higher). " + + "WriteConcern.Unacknowledged (w:0) breaks the IAggregatorPersistor.RemoveDataAsync " + + "ConcurrencyException contract and allows duplicate aggregate dispatch. " + + "Configure mongoClient.Settings.WriteConcern to a value where IsAcknowledged is true."); + } + + try + { + var database = mongoClient.GetDatabase(options.DatabaseName); + _collection = database.GetCollection(collectionName); + } + catch (BsonException ex) + { + throw new PersistenceException("Failed to connect to MongoDB for aggregator persistence.", ex); + } + catch (MongoException ex) + { + throw new PersistenceException("Failed to connect to MongoDB for aggregator persistence.", ex); + } + } + + /// + public async Task InsertDataAsync(IHasCorrelationId data, string name, string idempotencyKey, CancellationToken cancellationToken = default) + { + ArgumentNullException.ThrowIfNull(data); + ArgumentException.ThrowIfNullOrWhiteSpace(idempotencyKey); + + try + { + await EnsureIndexesAsync(cancellationToken).ConfigureAwait(false); + + var dataType = data.GetType(); + var dataBson = data.ToBsonDocument(dataType); + + // Upsert keyed on (Name, IdempotencyKey) with SetOnInsert: a re-delivery of + // the same message lands in the update phase, finds the existing row, and + // applies no fields (SetOnInsert is no-op on an existing match). The unique + // partial index on (Name, IdempotencyKey) prevents two concurrent first-time + // inserts from a clustered consumer pair both creating rows; the loser's + // upsert raises DuplicateKey which we catch and treat as a successful no-op. + var filter = Builders.Filter.And( + Builders.Filter.Eq(x => x.Name, name), + Builders.Filter.Eq(x => x.IdempotencyKey, idempotencyKey)); + var insertSequence = Interlocked.Increment(ref _insertSequence); + var update = Builders.Update + .SetOnInsert(x => x.Id, Guid.NewGuid()) + .SetOnInsert(x => x.Name, name) + .SetOnInsert(x => x.IdempotencyKey, idempotencyKey) + .SetOnInsert(x => x.DataBson, dataBson) + .SetOnInsert(x => x.DataTypeName, dataType.FullName ?? dataType.Name) + .SetOnInsert(x => x.Version, 1) + .SetOnInsert(x => x.InsertedAtTicks, _timeProvider.GetUtcNow().UtcTicks) + .SetOnInsert(x => x.InsertSequence, insertSequence); + try + { + await _collection.UpdateOneAsync(filter, update, + new UpdateOptions { IsUpsert = true }, + cancellationToken).ConfigureAwait(false); + } + catch (MongoWriteException ex) when (ex.WriteError?.Category == ServerErrorCategory.DuplicateKey) + { + // Concurrent first-time insert by another worker for the same idempotency + // key. The other worker won the race; their row stands and ours is the + // intended duplicate-suppression. No-op. + } + } + catch (BsonException ex) + { + throw new PersistenceException($"Failed to insert aggregator data for '{name}'.", ex); + } + catch (MongoException ex) + { + throw new PersistenceException($"Failed to insert aggregator data for '{name}'.", ex); + } + } + + /// + public async Task> GetDataAsync(string name, CancellationToken cancellationToken = default) + { + var snapshot = await GetSnapshotAsync(name, cancellationToken).ConfigureAwait(false); + return [.. snapshot.ResolvedMessages]; + } + + /// + public async Task GetSnapshotAsync(string name, CancellationToken cancellationToken = default) + { + IClientSessionHandle? session = null; + try + { + await EnsureIndexesAsync(cancellationToken).ConfigureAwait(false); + + // Causally-consistent session so the read-back is guaranteed to see the lease-claim + // write even when the primary fails over mid-call or the read-back lands on a + // secondary that hasn't yet applied the claim. Standalone mongods don't support + // sessions — fall back to unsessioned where StartSessionAsync throws NotSupported. + // MongoException covers cluster-state errors that surface at session-start time + // (e.g. no suitable server for sessions) — degrade to unsessioned rather than + // propagating; the lease-claim filter is still correct without a session, just + // weaker under failover. + try + { + var startSessionTask = _mongoClient.StartSessionAsync( + new ClientSessionOptions { CausalConsistency = true }, + cancellationToken); + // Defensive: Mock with no StartSessionAsync setup returns null + // (Moq's default for reference-type returns). Guard so unit tests using + // legacy mocks aren't forced to add an explicit StartSessionAsync setup. + if (startSessionTask is not null) + { + session = await startSessionTask.ConfigureAwait(false); + } + } + catch (NotSupportedException) + { + session = null; + } + catch (MongoException) + { + session = null; + } + + // Atomically claim every unlocked or stale-lease row for this aggregator. The + // filter uses $expr with $$NOW so the lease-expiry comparison evaluates against + // mongod's clock — the client's clock cannot pull "expired" rows out from under + // a peer holding a still-valid lease. The pipeline update writes a fresh + // LockExpiresAt as `$$NOW + LeaseDuration`, again server-time-anchored so the + // claim never depends on the client clock matching the server clock. Without + // this, two workers with skewed clocks could each see a peer's lease as expired + // and both claim the same rows — duplicate aggregator dispatch. + var sessionId = Guid.NewGuid(); + var leaseMs = (long)_leaseDuration.TotalMilliseconds; + var claimFilter = new BsonDocumentFilterDefinition(new BsonDocument + { + { "Name", name }, + { + "$expr", + new BsonDocument("$or", new BsonArray + { + new BsonDocument("$eq", new BsonArray { "$LockedBy", BsonNull.Value }), + new BsonDocument("$lte", new BsonArray { "$LockExpiresAt", "$$NOW" }), + }) + }, + }); + var setStage = new BsonDocument("$set", new BsonDocument + { + { "LockedBy", new BsonBinaryData(sessionId, GuidRepresentation.Standard) }, + { + "LockExpiresAt", + new BsonDocument("$add", new BsonArray { "$$NOW", leaseMs }) + }, + }); + var claimUpdate = new PipelineUpdateDefinition( + new BsonDocumentStagePipelineDefinition([setStage])); + + // Set before the await: if the UpdateMany commits server-side but the awaiter resumes + // into a cancellation, the catch path must still attempt release. The release filter + // is sessionId-gated so a release of an uncommitted claim is a server-side no-op. + var leaseClaimed = true; + List docs; + try + { + if (session is not null) + { + await _collection.UpdateManyAsync(session, claimFilter, claimUpdate, cancellationToken: cancellationToken).ConfigureAwait(false); + } + else + { + await _collection.UpdateManyAsync(claimFilter, claimUpdate, cancellationToken: cancellationToken).ConfigureAwait(false); + } + + // Read back exactly the rows this session just claimed. The LockExpiresAt > $$NOW + // guard (still server-anchored) rejects rows whose lease expired between the + // claim and read in pathological clock-jump cases — same $$NOW source as above + // so client clock skew cannot poison this leg either. + var readBackFilter = new BsonDocumentFilterDefinition(new BsonDocument + { + { "Name", name }, + { "LockedBy", new BsonBinaryData(sessionId, GuidRepresentation.Standard) }, + { + "$expr", + new BsonDocument("$gt", new BsonArray { "$LockExpiresAt", "$$NOW" }) + }, + }); + // Sort by InsertedAtTicks (insertion-order), then InsertSequence (per-process + // monotonic counter for same-tick ties), then Id as a final stable tie-break + // for cross-process ties. Without an explicit sort MongoDB returns documents + // in cursor order, which is not guaranteed to match insertion order. + var sort = Builders.Sort + .Ascending(x => x.InsertedAtTicks) + .Ascending(x => x.InsertSequence) + .Ascending(x => x.Id); // final tie-break for cross-process ties + docs = session is not null + ? await _collection.Find(session, readBackFilter).Sort(sort).ToListAsync(cancellationToken).ConfigureAwait(false) + : await _collection.Find(readBackFilter).Sort(sort).ToListAsync(cancellationToken).ConfigureAwait(false); + } + catch (Exception) + { + // Any failure between successful claim and successful read-back orphans the + // lease — held by a sessionId no caller will use. Best-effort release lets the + // next poll see the rows immediately rather than waiting on lease-expiry. + // Release uses CancellationToken.None — the cancelling token (or a transient + // MongoException) must not preempt cleanup. Mirrors MongoDbTimeoutStore. + if (leaseClaimed) + { + try + { + var releaseFilter = Builders.Filter.And( + Builders.Filter.Eq(x => x.Name, name), + Builders.Filter.Eq(x => x.LockedBy, sessionId)); + var releaseUpdate = Builders.Update + .Set(x => x.LockedBy, (Guid?)null) + .Set(x => x.LockExpiresAt, (DateTime?)null); + await _collection.UpdateManyAsync(releaseFilter, releaseUpdate, cancellationToken: CancellationToken.None).ConfigureAwait(false); + } + catch (Exception releaseEx) + { + _logger.LogWarning(releaseEx, + "Best-effort aggregator lease release after error failed for session {SessionId}; lease-expiry will reclaim.", + sessionId); + } + } + throw; + } + + var messages = new List(docs.Count); + var ids = new List(docs.Count); + var unresolved = 0; + + foreach (var doc in docs) + { + if (!_typeRegistry.TryResolve(doc.DataTypeName, out var type)) + { + _logger.LogWarning("Cannot resolve type '{TypeName}' for aggregator data", doc.DataTypeName); + unresolved++; + continue; + } + + try + { + var deserialised = BsonSerializer.Deserialize(doc.DataBson, type); + if (deserialised is not IHasCorrelationId withCorrId) + { + _logger.LogWarning( + "Aggregator document {Id} of type '{TypeName}' does not implement IHasCorrelationId; counting as unresolved", + doc.Id, doc.DataTypeName); + unresolved++; + continue; + } + messages.Add(withCorrId); + ids.Add(doc.Id); + } + catch (Exception ex) when (ex is BsonException or FormatException) + { + // Schema drift or corrupt document for this single row — treat as unresolved + // so the snapshot still surfaces the rest of the aggregator's messages. + // BsonException covers structural BSON errors; FormatException is thrown by + // BsonClassMapSerializer when a field's BSON type is incompatible with the CLR + // property type (e.g. BsonArray stored where a string is expected). + _logger.LogWarning(ex, + "Failed to deserialise aggregator document {Id} as '{TypeName}'; counting as unresolved", + doc.Id, doc.DataTypeName); + unresolved++; + } + } + + return new LeasedAggregatorSnapshot + { + ResolvedMessages = messages, + ResolvedIds = ids, + UnresolvedCount = unresolved, + LeaseSessionId = sessionId, + }; + } + catch (BsonException ex) + { + throw new PersistenceException($"Failed to get aggregator data for '{name}'.", ex); + } + catch (MongoException ex) + { + throw new PersistenceException($"Failed to get aggregator data for '{name}'.", ex); + } + finally + { + session?.Dispose(); + } + } + + /// + public async Task RemoveDataAsync(string name, Guid correlationId, CancellationToken cancellationToken = default) + { + try + { + await EnsureIndexesAsync(cancellationToken).ConfigureAwait(false); + var filter = Builders.Filter.And( + Builders.Filter.Eq(x => x.Name, name), + Builders.Filter.Eq("DataBson.CorrelationId", new BsonBinaryData(correlationId, GuidRepresentation.Standard)) + ); + // FindOneAndDelete returns the deleted document so we can inspect LockedBy / + // LockExpiresAt — atomic delete-with-readback in one round-trip. Without the + // readback, a peer holding an active lease on this row gets the row deleted out + // from under their RemoveSnapshotAsync, which then warns "lease rotated" with no + // useful diagnostic about who removed it. RemoveDataAsync is a public IAggregatorPersistor + // surface that bypasses the snapshot lease by contract (callers explicitly say + // "remove this specific row"); when a lease violation occurs we log a Warning so + // operators can correlate the snapshot-rotation warning to the RemoveDataAsync + // call without inferring it from timing. + var deleted = await _collection.FindOneAndDeleteAsync(filter, cancellationToken: cancellationToken).ConfigureAwait(false); + if (deleted is not null + && deleted.LockedBy is not null + && (deleted.LockExpiresAt is null || deleted.LockExpiresAt > DateTime.UtcNow)) + { + _logger.LogWarning( + "RemoveDataAsync deleted aggregator row for Name='{Name}', CorrelationId='{CorrelationId}' while an active lease (session={LockedBy}, expiresAt={Expires}) was held; a concurrent RemoveSnapshotAsync may surface a lease-rotation warning for the same session.", + name, correlationId, deleted.LockedBy, deleted.LockExpiresAt); + } + if (deleted is null) + { + // IAggregatorPersistor.RemoveDataAsync contract: throw ConcurrencyException + // for any "row could not be located" outcome — the empty-bucket case + // (Name has no rows) and the wrong-key case (Name has rows but none match) + // are both shapes of "concurrent state changed under us" or "caller passed + // a mismatched key". A separate KeyNotFoundException would break InMemory + // parity and break callers relying on the single contracted exception type. + var nameOnly = Builders.Filter.Eq(x => x.Name, name); + var nameCount = await _collection.CountDocumentsAsync(nameOnly, cancellationToken: cancellationToken).ConfigureAwait(false); + if (nameCount == 0) + { + throw new ConcurrencyException( + $"Aggregator has no rows for Name='{name}'. Caller may have used the wrong " + + $"aggregator name or the rows were already removed (RemoveAllAsync) by another path."); + } + throw new ConcurrencyException( + $"Aggregator row not found: Name='{name}', CorrelationId='{correlationId}'. " + + $"{nameCount} row(s) exist for this Name but none with this CorrelationId — " + + $"row was concurrently removed or caller passed a mismatched key."); + } + } + catch (BsonException ex) + { + throw new PersistenceException($"Failed to remove aggregator data for '{name}' with correlationId '{correlationId}'.", ex); + } + catch (MongoException ex) + { + throw new PersistenceException($"Failed to remove aggregator data for '{name}' with correlationId '{correlationId}'.", ex); + } + } + + /// + public async Task RemoveAllAsync(string name, CancellationToken cancellationToken = default) + { + try + { + await EnsureIndexesAsync(cancellationToken).ConfigureAwait(false); + var filter = Builders.Filter.Eq(x => x.Name, name); + await _collection.DeleteManyAsync(filter, cancellationToken).ConfigureAwait(false); + } + catch (BsonException ex) + { + throw new PersistenceException($"Failed to remove all aggregator data for '{name}'.", ex); + } + catch (MongoException ex) + { + throw new PersistenceException($"Failed to remove all aggregator data for '{name}'.", ex); + } + } + + /// + public async Task RemoveSnapshotAsync(string name, IAggregatorSnapshot snapshot, CancellationToken cancellationToken = default) + { + ArgumentNullException.ThrowIfNull(snapshot); + if (snapshot.ResolvedIds.Count == 0) + { + return; + } + + try + { + await EnsureIndexesAsync(cancellationToken).ConfigureAwait(false); + // Delete only the specific documents captured in the snapshot, keyed by + // (Name, Id, LockedBy=sessionId). The session-id constraint defends against + // a row whose lease has rotated to another worker between snapshot and + // delete: deleting it here would clobber the new owner's claim. Snapshots + // produced by GetSnapshotAsync always carry a session id; defensively + // accept snapshots without one (e.g. constructed manually by a third party) + // by falling back to the unconstrained delete. + FilterDefinition filter = Builders.Filter.And( + Builders.Filter.Eq(x => x.Name, name), + Builders.Filter.In(x => x.Id, snapshot.ResolvedIds)); + if (snapshot is LeasedAggregatorSnapshot leased) + { + filter &= Builders.Filter.Eq(x => x.LockedBy, leased.LeaseSessionId); + } + var deleteResult = await _collection.DeleteManyAsync(filter, cancellationToken).ConfigureAwait(false); + if (deleteResult.IsAcknowledged && deleteResult.DeletedCount < snapshot.ResolvedIds.Count) + { + // Lease rotated to another worker mid-handler — the original handler ran + // past its LeaseDuration and the rows were re-claimed by a peer who has + // already dispatched. Log at Warning so operators can observe the + // at-least-once delivery and size handler latency vs. LeaseDuration. Aggregator + // handlers must be idempotent when handler runtime can exceed the lease. + var sessionTag = snapshot is LeasedAggregatorSnapshot ls ? ls.LeaseSessionId.ToString() : ""; + _logger.LogWarning( + "Aggregator '{Name}' RemoveSnapshotAsync deleted {Deleted}/{Expected} rows for session {SessionId}; the lease rotated mid-dispatch and the missing rows were re-dispatched by a peer (at-least-once delivery).", + name, deleteResult.DeletedCount, snapshot.ResolvedIds.Count, sessionTag); + } + } + catch (BsonException ex) + { + throw new PersistenceException($"Failed to remove snapshot aggregator data for '{name}'.", ex); + } + catch (MongoException ex) + { + throw new PersistenceException($"Failed to remove snapshot aggregator data for '{name}'.", ex); + } + } + + /// + public async Task ReleaseSnapshotAsync(string name, IAggregatorSnapshot snapshot, CancellationToken cancellationToken = default) + { + ArgumentNullException.ThrowIfNull(snapshot); + // Only LeasedAggregatorSnapshot rows hold a server-side lease; legacy snapshot + // shapes have no lease to release. The release filter is sessionId-gated, so + // calling it when ResolvedIds is empty (all-unresolved batch) is a server-side + // no-op when nothing was claimed — but correctly releases any rows that were. + if (snapshot is not LeasedAggregatorSnapshot leased) + { + return; + } + + try + { + await EnsureIndexesAsync(cancellationToken).ConfigureAwait(false); + // Clear LockedBy / LockExpiresAt for any row still locked under THIS snapshot's + // session. Matching on sessionId means a row whose lease has already rotated to + // a different worker (the at-least-once delivery scenario logged in + // RemoveSnapshotAsync) is left untouched — that worker now owns it. + var releaseFilter = Builders.Filter.And( + Builders.Filter.Eq(x => x.Name, name), + Builders.Filter.Eq(x => x.LockedBy, leased.LeaseSessionId)); + var releaseUpdate = Builders.Update + .Set(x => x.LockedBy, (Guid?)null) + .Set(x => x.LockExpiresAt, (DateTime?)null); + await _collection.UpdateManyAsync(releaseFilter, releaseUpdate, cancellationToken: cancellationToken).ConfigureAwait(false); + } + catch (BsonException ex) + { + throw new PersistenceException($"Failed to release snapshot aggregator lease for '{name}'.", ex); + } + catch (MongoException ex) + { + throw new PersistenceException($"Failed to release snapshot aggregator lease for '{name}'.", ex); + } + } + + /// + public async Task CountAsync(string name, CancellationToken cancellationToken = default) + { + try + { + await EnsureIndexesAsync(cancellationToken).ConfigureAwait(false); + var filter = Builders.Filter.Eq(x => x.Name, name); + var count = await _collection.CountDocumentsAsync(filter, cancellationToken: cancellationToken).ConfigureAwait(false); + // Clamp at int.MaxValue to match IAggregatorPersistor's int return contract. Aggregators + // are keyed by (Name, CorrelationId) and rarely exceed a few hundred rows in normal usage; + // the clamp guards against pathological cases without changing the contract. + return count > int.MaxValue ? int.MaxValue : (int)count; + } + catch (BsonException ex) + { + throw new PersistenceException($"Failed to count aggregator data for '{name}'.", ex); + } + catch (MongoException ex) + { + throw new PersistenceException($"Failed to count aggregator data for '{name}'.", ex); + } + } + + /// + public async Task CountResolvedAsync(string name, CancellationToken cancellationToken = default) + { + try + { + await EnsureIndexesAsync(cancellationToken).ConfigureAwait(false); + // Snapshot the registered type-name set and use it as a Mongo $in filter on + // DataTypeName. Documents whose CLR type can't currently be resolved are + // excluded from the gate so unresolved-only batches don't churn the flush + // path. The snapshot is point-in-time; a Register that runs after the + // snapshot but before the round-trip simply lands in the next gate eval. + var registeredTypes = _typeRegistry.AllRegisteredTypeNames(); + if (registeredTypes.Count == 0) + { + // No types registered means nothing can resolve — skip the round-trip. + return 0; + } + + var filter = Builders.Filter.And( + Builders.Filter.Eq(x => x.Name, name), + Builders.Filter.In(x => x.DataTypeName, registeredTypes)); + var count = await _collection.CountDocumentsAsync(filter, cancellationToken: cancellationToken).ConfigureAwait(false); + return count > int.MaxValue ? int.MaxValue : (int)count; + } + catch (BsonException ex) + { + throw new PersistenceException($"Failed to count resolved aggregator data for '{name}'.", ex); + } + catch (MongoException ex) + { + throw new PersistenceException($"Failed to count resolved aggregator data for '{name}'.", ex); + } + } + + /// + /// Ensures the supporting indexes for this collection exist; idempotent across processes. + /// A per-instance flag short-circuits subsequent calls after the first success or benign + /// conflict (codes 85/86), avoiding a MongoDB round-trip on every message operation. + /// Non-benign errors leave the flag unset so the next caller retries index creation. + /// + private async Task EnsureIndexesAsync(CancellationToken cancellationToken) + { + if (Volatile.Read(ref _indexed) != 0) + { + return; + } + + await _indexInitSemaphore.WaitAsync(cancellationToken).ConfigureAwait(false); + try + { + // Re-check inside the semaphore: a concurrent first-caller may have already + // completed the create. This pattern mirrors MongoDbProcessManagerFinder's + // _indexedCollections lock — both prevent N concurrent cold-starts each + // firing CreateManyAsync, even though Mongo's idempotency makes it benign. + if (Volatile.Read(ref _indexed) != 0) + { + return; + } + + try + { + // Single-field index on Name supports GetDataAsync, RemoveAllAsync, CountAsync + var nameIndex = new CreateIndexModel( + Builders.IndexKeys.Ascending(x => x.Name)); + + // Compound index on (Name, InsertedAtTicks, InsertSequence) covers the sort + // path in GetSnapshotAsync so MongoDB can satisfy the query with an index scan. + var nameInsertOrderIndex = new CreateIndexModel( + Builders.IndexKeys + .Ascending(x => x.Name) + .Ascending(x => x.InsertedAtTicks) + .Ascending(x => x.InsertSequence)); + + // Compound index on (Name, DataBson.CorrelationId) supports RemoveDataAsync. + var nameCorrelationIndex = new CreateIndexModel( + Builders.IndexKeys + .Ascending(x => x.Name) + .Ascending("DataBson.CorrelationId")); + + // Unique partial index on (Name, IdempotencyKey). The partial filter + // excludes pre-migration rows whose IdempotencyKey is missing (legacy + // data continues to live alongside new inserts without violating the + // constraint). New inserts always populate the key, so the unique + // constraint catches concurrent first-time inserts from clustered + // workers — the loser raises DuplicateKey which InsertDataAsync + // catches and treats as a successful no-op. + var nameIdempotencyIndex = new CreateIndexModel( + Builders.IndexKeys + .Ascending(x => x.Name) + .Ascending(x => x.IdempotencyKey), + new CreateIndexOptions + { + Unique = true, + PartialFilterExpression = Builders.Filter + .Exists(x => x.IdempotencyKey, true), + }); + + // Compound index on (Name, LockedBy) supports the release filter in + // ReleaseSnapshotAsync and the lease-bounded read-back filter in + // GetSnapshotAsync. The single-field Name index narrows by aggregator, + // but LockedBy filtering after the Name scan degrades to an in-memory + // match at high per-Name cardinality; this compound covers the predicate + // end-to-end. The partial filter uses $type:Binary so the index only + // stores leased rows (Guid serialises as BinData subtype 4) and excludes + // the vast majority of the collection where LockedBy is absent or null. + // $type is supported in partial-index expressions since MongoDB 4.0; + // Filter.Ne(null) serialises to { $not: { $eq: null } }, which MongoDB + // rejects in partial-index expressions prior to 7.0. Both queries that + // use the index filter on a non-null sessionId, so the $type exclusion + // does not affect correctness. + var nameLockedByIndex = new CreateIndexModel( + Builders.IndexKeys + .Ascending(x => x.Name) + .Ascending(x => x.LockedBy), + new CreateIndexOptions + { + PartialFilterExpression = Builders.Filter + .Type(x => x.LockedBy, BsonType.Binary), + }); + + await _collection.Indexes.CreateManyAsync( + [nameIndex, nameInsertOrderIndex, nameCorrelationIndex, nameIdempotencyIndex, nameLockedByIndex], cancellationToken).ConfigureAwait(false); + } + catch (MongoCommandException ex) when (BenignIndexCodes.Contains(ex.Code)) + { + // Another process / thread created the same index concurrently. Their work is ours; + // the indexes are present regardless of which side succeeded. + } + + Volatile.Write(ref _indexed, 1); + } + finally + { + _indexInitSemaphore.Release(); + } + } + + /// + /// Internal document type for aggregator storage (not constrained by IProcessManagerData). + /// + [BsonIgnoreExtraElements] + internal sealed class AggregatorDocument + { + public Guid Id { get; set; } + public int Version { get; set; } + public BsonDocument DataBson { get; set; } = default!; + public string DataTypeName { get; set; } = string.Empty; + public string Name { get; set; } = string.Empty; + // Stored as ticks so the field is comparable without Mongo-side + // date handling and so legacy documents (missing the field) deserialize + // to 0 rather than throw — 0 sorts first, preserving sensible order. + public long InsertedAtTicks { get; set; } + + // Existing documents missing this field deserialize to 0 — same default as + // InsertedAtTicks's introduction in a prior phase. New inserts populate via + // Interlocked.Increment(ref _insertSequence). + public long InsertSequence { get; set; } + + // Per-row lease columns. A non-null LockedBy + future LockExpiresAt indicates + // a worker is mid-flush on this row; concurrent flushers see those rows as + // unavailable and skip them. Pre-migration documents missing these fields + // deserialize to null and look unlocked, which is the right default for any + // row that was inserted before the lease feature shipped. + [BsonIgnoreIfNull] + public Guid? LockedBy { get; set; } + [BsonIgnoreIfNull] + public DateTime? LockExpiresAt { get; set; } + + // Stable per-message identifier (typically the broker MessageId) used by + // InsertDataAsync's upsert to deduplicate a retry-queue redelivery while the + // row is still buffered. Pre-migration rows have no key and never match the + // upsert's compound filter, so legacy data is preserved without reprocessing. + // The unique partial index ensures only documents that have an IdempotencyKey + // participate in uniqueness; legacy null-keyed rows are excluded from the + // constraint. + [BsonIgnoreIfNull] + public string? IdempotencyKey { get; set; } + } + + /// + /// Snapshot type returned by that carries the + /// per-call session id used to claim the rows. + /// reads this id back so the delete only matches rows still locked under the + /// same session — defending against the cross-process race where another worker + /// re-claims after this session's lease expires. + /// + private sealed class LeasedAggregatorSnapshot : IAggregatorSnapshot + { + public required IReadOnlyList ResolvedMessages { get; init; } + public required IReadOnlyList ResolvedIds { get; init; } + public required int UnresolvedCount { get; init; } + public required Guid LeaseSessionId { get; init; } + } +} diff --git a/src/ServiceConnect.Persistence.MongoDb/Configuration/MongoClientFactory.cs b/src/ServiceConnect.Persistence.MongoDb/Configuration/MongoClientFactory.cs new file mode 100644 index 000000000..1c9988d55 --- /dev/null +++ b/src/ServiceConnect.Persistence.MongoDb/Configuration/MongoClientFactory.cs @@ -0,0 +1,147 @@ +using System; +using System.Collections.Concurrent; +using System.Security.Cryptography.X509Certificates; +using System.Threading; +using MongoDB.Driver; + +namespace ServiceConnect.Persistence.MongoDb; + +/// +/// Factory that builds instances configured the same way the +/// bundled MongoDB persistors do. Public so out-of-band tooling (admin endpoints, migration +/// scripts, sidecar services that share the same MongoDB instance for ops dashboards) can +/// construct a client that matches the persistors' SSL/cert handling and Guid-serializer +/// registration without reimplementing the wiring. +/// +public static class MongoClientFactory +{ + // Cache loaded certificates so repeated Create() calls never duplicate the native handle. + // The cert's lifetime is then bounded by the process (or explicit ClearCertificateCache() + // in tests) — aligning with the MongoClient singleton that holds a reference to it. + private static readonly ConcurrentDictionary> _certCache = new(StringComparer.Ordinal); + + // Test seam: lets unit tests substitute a counting wrapper without touching the + // real X509 loader. Production code always sees LoadCertificate. + internal static Func CertLoader { get; set; } = LoadCertificate; + + /// + /// Creates a using the configured connection and SSL options. + /// + /// The MongoDB persistence options to apply. + /// A configured instance. + /// is . + /// The connection string is missing. + public static MongoClient Create(MongoDbPersistenceOptions options) + { + ArgumentNullException.ThrowIfNull(options); + if (string.IsNullOrWhiteSpace(options.ConnectionString)) + { + throw new InvalidOperationException( + "MongoDbPersistenceOptions.ConnectionString is required. Configure via IOptions or builder."); + } + + // Must register Guid serializer BEFORE any MongoClient reads/writes so data is + // encoded as UUID subtype 4 (Standard) from the start. Direct callers of this + // factory bypass UseMongoDbPersistence, so the registration guard lives here too + // from the start. + MongoDbPersistenceExtensions.EnsureGuidSerializerRegistered(); + + if (options.Ssl is null) + { + return new MongoClient(options.ConnectionString); + } + + return CreateSslClient(options); + } + + private static MongoClient CreateSslClient(MongoDbPersistenceOptions options) + { + var sslOptions = options.Ssl!; + var settings = MongoClientSettings.FromConnectionString(options.ConnectionString); + + settings.UseTls = true; + settings.AllowInsecureTls = sslOptions.AllowInsecureTls; + + // Protocol and revocation settings must apply to every TLS connection, not only + // when a client cert is configured — otherwise certless TLS users silently fall + // back to driver defaults for both. + // AllowInsecureTls and CheckCertificateRevocation=true are incompatible (driver + // rejects the combination), so revocation check is forced off when insecure TLS + // is explicitly requested. + var ssl = new SslSettings + { + CheckCertificateRevocation = !sslOptions.AllowInsecureTls && sslOptions.CheckCertificateRevocation, + EnabledSslProtocols = sslOptions.SslProtocol + }; + + if (!string.IsNullOrEmpty(sslOptions.CertPath)) + { + var cert = GetOrLoadCertificate(sslOptions.CertPath, sslOptions.CertPassphrase); + ssl.ClientCertificates = [cert]; + // Fall back to the server-supplied certificate when the driver passes a null or + // empty collection (edge case in some driver versions) to avoid NRE / IndexOutOfRange. + ssl.ClientCertificateSelectionCallback = (sender, host, certificates, certificate, issuers) => + (certificates is { Count: > 0 } ? certificates[0] : certificate)!; + } + + settings.SslSettings = ssl; + + return new MongoClient(settings); + } + + private static X509Certificate2 GetOrLoadCertificate(string path, string? passphrase) + { + // Key must include passphrase changes so a rotated cert is picked up even when the + // file path stays the same. + var cacheKey = path + "\0" + (passphrase ?? string.Empty); + var lazy = _certCache.GetOrAdd( + cacheKey, + _ => new Lazy( + () => CertLoader(path, passphrase), + LazyThreadSafetyMode.ExecutionAndPublication)); + try + { + return lazy.Value; + } + catch + { + // Lazy(ExecutionAndPublication) memoises the exception; evict the failed entry + // so the next caller retries rather than receiving the same cached failure forever. + // The KeyValuePair overload ensures we only remove if the value is still the same + // Lazy that failed, avoiding a race where another thread has already inserted a + // fresh one. + _certCache.TryRemove(new KeyValuePair>(cacheKey, lazy)); + throw; + } + } + + private static X509Certificate2 LoadCertificate(string path, string? passphrase) + { +#if NET9_0_OR_GREATER + return string.IsNullOrEmpty(passphrase) + ? X509CertificateLoader.LoadCertificateFromFile(path) + : X509CertificateLoader.LoadPkcs12FromFile(path, passphrase); +#else + return string.IsNullOrEmpty(passphrase) + ? new X509Certificate2(path) + : new X509Certificate2(path, passphrase); +#endif + } + + /// + /// Clears the internal certificate cache. Intended for test teardown; do not call in + /// production — live instances still hold references to the + /// removed certificates, and clearing only releases the factory's own reference. + /// + internal static void ClearCertificateCache() + { + foreach (var lazy in _certCache.Values) + { + if (lazy.IsValueCreated) + { + lazy.Value.Dispose(); + } + } + _certCache.Clear(); + } +} diff --git a/src/ServiceConnect.Persistence.MongoDb/Configuration/MongoDbPersistenceOptions.cs b/src/ServiceConnect.Persistence.MongoDb/Configuration/MongoDbPersistenceOptions.cs new file mode 100644 index 000000000..335652850 --- /dev/null +++ b/src/ServiceConnect.Persistence.MongoDb/Configuration/MongoDbPersistenceOptions.cs @@ -0,0 +1,46 @@ +namespace ServiceConnect.Persistence.MongoDb; + +/// +/// Configures MongoDB persistence integration for ServiceConnect. +/// +public sealed class MongoDbPersistenceOptions +{ + /// + /// MongoDB connection string. Must be explicitly configured; there is no default, + /// to prevent accidental localhost use in production. + /// + public string ConnectionString { get; set; } = string.Empty; + /// + /// Gets or sets the MongoDB database name used for persisted records. + /// + public string DatabaseName { get; set; } = "RMessageBusPersistentStore"; + + /// + /// Gets or sets optional SSL/TLS settings for the MongoDB connection. + /// + public MongoDbSslOptions? Ssl { get; set; } + + /// + /// Gets or sets the maximum number of timeouts claimed per poll by the + /// timeout store. Keeps a single poll bounded under load — the unclaimed + /// due rows are picked up on the next poll. Must be positive. + /// + public int TimeoutBatchSize { get; set; } = 500; + + /// + /// Gets or sets the lease duration applied when claiming a timeout for + /// dispatch. Shorter leases recover faster from crashed handlers; longer + /// leases are safer for handlers with variable dispatch latency. Must + /// be positive. + /// + public TimeSpan TimeoutLockLeaseDuration { get; set; } = TimeSpan.FromMinutes(5); + + /// + /// Gets or sets the lease duration applied when an aggregator snapshot is claimed + /// for dispatch. A worker that crashes mid-flush holds the rows for at most this + /// long before another worker may reclaim them. Shorter leases recover faster from + /// crashed handlers; longer leases are safer for handlers with variable dispatch + /// latency. Must be positive. + /// + public TimeSpan AggregatorLeaseDuration { get; set; } = TimeSpan.FromMinutes(5); +} diff --git a/src/ServiceConnect.Persistence.MongoDb/Configuration/MongoDbSslOptions.cs b/src/ServiceConnect.Persistence.MongoDb/Configuration/MongoDbSslOptions.cs new file mode 100644 index 000000000..b0eeb0a3b --- /dev/null +++ b/src/ServiceConnect.Persistence.MongoDb/Configuration/MongoDbSslOptions.cs @@ -0,0 +1,35 @@ +using System.Security.Authentication; + +namespace ServiceConnect.Persistence.MongoDb; + +/// +/// Configures SSL/TLS settings for MongoDB connections. +/// +public sealed class MongoDbSslOptions +{ + /// + /// Gets or sets the client certificate file path. + /// + public string? CertPath { get; set; } + + /// + /// Gets or sets the passphrase used to load the client certificate. + /// + public string? CertPassphrase { get; set; } + /// + /// SSL/TLS protocol. Defaults to , which delegates + /// protocol selection to the runtime so TLS 1.3 is used where available. + /// + public SslProtocols SslProtocol { get; set; } = SslProtocols.None; + /// + /// SECURITY WARNING: Setting this to true disables TLS certificate validation + /// against the MongoDB endpoint, enabling man-in-the-middle attacks. Only use in + /// development / testing with full understanding of the risks. + /// + /// WARNING: When true, all MongoDB TLS certificate validation is disabled. Use only in development/testing. + public bool AllowInsecureTls { get; set; } + /// + /// Gets or sets a value indicating whether certificate revocation should be checked. + /// + public bool CheckCertificateRevocation { get; set; } = true; +} diff --git a/src/ServiceConnect.Persistence.MongoDb/MongoDbPersistenceExtensions.cs b/src/ServiceConnect.Persistence.MongoDb/MongoDbPersistenceExtensions.cs new file mode 100644 index 000000000..87d4949c4 --- /dev/null +++ b/src/ServiceConnect.Persistence.MongoDb/MongoDbPersistenceExtensions.cs @@ -0,0 +1,163 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.DependencyInjection.Extensions; +using Microsoft.Extensions.Hosting; +using MongoDB.Bson; +using MongoDB.Bson.Serialization; +using MongoDB.Bson.Serialization.Serializers; +using MongoDB.Driver; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Persistence.MongoDb; + +/// +/// Extension methods for registering MongoDB-backed persistence components. +/// +public static class MongoDbPersistenceExtensions +{ + // MongoDB.Driver 3.x always operates in the V3 GuidRepresentation regime — there is no + // mode toggle, and every Guid member honours the serializer attached to it. We still + // register a Standard-representation Guid serializer (subtype 4 / UUID per RFC) so that + // stored Guid properties round-trip with the same subtype the filter literals are built + // against in IMongoCollection queries. Without an explicit registration the driver + // defaults to Standard for net8+ anyway, but pinning it here guards against another + // component in the process registering a different serializer first. + // + // The success flag is set only after registration completes without throwing. A broken + // init therefore throws on every call — no silent short-circuit into a misconfigured + // MongoClient — until the underlying configuration is valid. First-time setup is + // serialised via the lock so concurrent callers don't race on the global BSON mutations. + private static int _guidSerializerRegistered; +#if NET9_0_OR_GREATER + private static readonly System.Threading.Lock GuidSerializerInitLock = new(); +#else + private static readonly object GuidSerializerInitLock = new(); +#endif + + internal static void EnsureGuidSerializerRegistered() + { + // Fast path: lock-free observation for hot-path callers on already-initialised + // processes. A volatile read is enough to see the write that committed the flag + // under the lock — a matching release/acquire pair — without acquiring the lock. + if (Volatile.Read(ref _guidSerializerRegistered) != 0) + { + return; + } + + lock (GuidSerializerInitLock) + { + // Re-check under the lock: if a concurrent first caller won the race and + // completed setup while we were waiting, there is nothing left to do. + if (_guidSerializerRegistered != 0) + { + return; + } + + try + { + BsonSerializer.RegisterSerializer(typeof(Guid), new GuidSerializer(GuidRepresentation.Standard)); + } + catch (BsonSerializationException ex) + { + // Another component already registered a Guid serializer. Accept it only if it is + // already Standard — reusing it is safe because our filter literals will match. + // Any other representation causes silent query misses (filter literals use + // subtype 4 while stored Guids use a different subtype), so we fail loudly. + var registered = BsonSerializer.LookupSerializer(); + if (!IsCompatibleGuidSerializer(registered)) + { + throw new InvalidOperationException( + "ServiceConnect MongoDB persistence requires GuidRepresentation.Standard but another " + + "component has already registered a different Guid serializer. Configure your driver " + + "initialisation to either skip Guid serializer registration or register " + + "GuidRepresentation.Standard before any other component does so.", + ex); + } + // Compatible Standard already registered (by another component or our own + // duplicate call); proceed. + } + + // Post-register verification: confirm the registry actually holds a Standard-Guid + // serializer before flipping the success flag. A RegisterSerializer call that + // returns success doesn't strictly guarantee our serializer is the one the lookup + // path will return — a concurrent component could race us between our register + // call and the first query. Round-trip the lookup once so we fail loudly here + // rather than producing silent query misses against filter literals later. + var verified = BsonSerializer.LookupSerializer(); + if (!IsCompatibleGuidSerializer(verified)) + { + throw new InvalidOperationException( + "ServiceConnect MongoDB persistence registered GuidRepresentation.Standard but a " + + "different Guid serializer is now active (possibly registered concurrently by " + + "another component). Configure your driver initialisation to install " + + "GuidRepresentation.Standard exclusively, before any other component registers a " + + "Guid serializer."); + } + + // Only commit the success flag after registration AND verification have completed + // without throwing. If verification fails, the flag stays 0 and the next caller + // retries the whole setup instead of short-circuiting on broken state. + Volatile.Write(ref _guidSerializerRegistered, 1); + } + } + + /// + /// Returns true when an existing Guid serializer registration is compatible with + /// ServiceConnect's requirement (GuidRepresentation.Standard). False otherwise — + /// indicating a mismatch that should be reported loudly. + /// + internal static bool IsCompatibleGuidSerializer(IBsonSerializer? registered) + { + return registered is GuidSerializer guidSerializer + && guidSerializer.GuidRepresentation == GuidRepresentation.Standard; + } + + /// + /// Registers MongoDB implementations for ServiceConnect persistence services. + /// + /// The builder to configure. + /// Applies MongoDB persistence options. + /// The same instance. + public static ServiceConnectBuilder UseMongoDbPersistence( + this ServiceConnectBuilder builder, + Action configure) + { + var options = new MongoDbPersistenceOptions(); + configure(options); + + EnsureGuidSerializerRegistered(); + + builder.AddRegistration(services => + { + services.TryAddSingleton(options); + // Single IMongoClient singleton — shared across all persistence classes so + // only one connection pool is created. + services.TryAddSingleton(_ => MongoClientFactory.Create(options)); + services.TryAddSingleton(); + services.TryAddSingleton(); + // Pre-create per-saga unique CorrelationId indexes at startup. Closes the + // cross-process race window where two cold-started processes could insert + // duplicate saga rows before either one called the lazy index-creation path. + // INSERT at position 0 so the initializer runs BEFORE BusHostedService — IHost + // starts hosted services in registration order, and a default AddHostedService + // call appends, which would put indexing AFTER consuming starts and leave the + // race window open during cold-start. + // + // Idempotent: two feature modules each calling UseMongoDbPersistence within one + // AddServiceConnect must not produce two initializer instances racing the same + // index-creation work. TryAddEnumerable would append rather than position-0 + // insert, defeating the pre-BusHostedService ordering — guard with an explicit + // type-check instead. + if (!services.Any(d => d.ImplementationType == typeof(MongoDbProcessManagerIndexInitializer))) + { + services.Insert(0, ServiceDescriptor.Singleton()); + } + services.TryAddSingleton(); + services.TryAddSingleton(sp => + sp.GetRequiredService()); + services.TryAddSingleton(sp => + sp.GetRequiredService()); + }); + + return builder; + } +} diff --git a/src/ServiceConnect.Persistence.MongoDb/ProcessManager/MongoDbData.cs b/src/ServiceConnect.Persistence.MongoDb/ProcessManager/MongoDbData.cs new file mode 100644 index 000000000..a1a2deb06 --- /dev/null +++ b/src/ServiceConnect.Persistence.MongoDb/ProcessManager/MongoDbData.cs @@ -0,0 +1,23 @@ +using MongoDB.Bson.Serialization.Attributes; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Persistence.MongoDb; + +/// +/// MongoDB persistence wrapper for process-manager state and its version metadata. +/// +/// The process-manager data type. +[BsonIgnoreExtraElements] +internal sealed class MongoDbData : IPersistenceData, IVersioned, IIdentified where T : class, IProcessManagerData +{ + /// + /// Gets or sets the persistence record identifier. + /// + public Guid Id { get; set; } + + /// + public long Version { get; set; } + + /// + public required T Data { get; set; } +} diff --git a/src/ServiceConnect.Persistence.MongoDb/ProcessManager/MongoDbProcessManagerFinder.cs b/src/ServiceConnect.Persistence.MongoDb/ProcessManager/MongoDbProcessManagerFinder.cs new file mode 100644 index 000000000..8d720e6eb --- /dev/null +++ b/src/ServiceConnect.Persistence.MongoDb/ProcessManager/MongoDbProcessManagerFinder.cs @@ -0,0 +1,539 @@ +using System.Linq.Expressions; +using System.Reflection; +using System.Text.RegularExpressions; +using Microsoft.Extensions.Logging; +using MongoDB.Bson; +using MongoDB.Driver; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Exceptions; + +namespace ServiceConnect.Persistence.MongoDb; + +/// +/// MongoDB implementation of IProcessManagerFinder. +/// Supports both standard and SSL connections via MongoDbPersistenceOptions. +/// Uses locking mechanism for timeout batch retrieval to prevent duplicate dispatch. +/// +internal sealed partial class MongoDbProcessManagerFinder : IProcessManagerFinder +{ + private readonly IMongoDatabase _mongoDatabase; + private readonly ILogger _logger; + private readonly System.Collections.Concurrent.ConcurrentDictionary _indexedCollections = new(StringComparer.Ordinal); + // _indexCreationSemaphore is intentionally NOT Disposed: + // SemaphoreSlim.Dispose only releases the lazily-allocated WaitHandle, and we never call + // AvailableWaitHandle, so disposal is a functional no-op. A concurrent caller's Release() + // on a disposed semaphore would throw ObjectDisposedException out of the unwind path, + // which we cannot prevent without holding GC references to every caller. Mirrors the + // Connection / ProducerConnection / Producer / Bus pattern. + private readonly SemaphoreSlim _indexCreationSemaphore = new(1, 1); + private static readonly HashSet BenignIndexCodes = [85, 86]; // IndexOptionsConflict, IndexKeySpecsConflict + + // Cached compiled delegates for InsertDataTypedAsync, keyed by concrete data type. + // Avoid MakeGenericMethod + MethodInfo.Invoke on every insert call. + private static readonly System.Collections.Concurrent.ConcurrentDictionary> + InsertDelegateCache = new(); + + // Cached compiled delegates for the EnsureCorrelationIdIndexAsync startup-time + // dispatch path. Built once per saga data type and reused for every subsequent + // hosted-service invocation. + private static readonly System.Collections.Concurrent.ConcurrentDictionary> + EnsureIndexDelegateCache = new(); + + static MongoDbProcessManagerFinder() + { + // Ensure the canonical Guid serializer is registered before any direct-ctor + // path serialises a Guid. DI factories also call this; the static ctor covers + // tests and custom compositions that bypass DI. + MongoDbPersistenceExtensions.EnsureGuidSerializerRegistered(); + } + + /// + /// Creates a process-manager finder backed by MongoDB. + /// + /// The MongoDB client. + /// The persistence options used to select the database. + /// The logger used for mapping failures. + /// Reserved for future time-dependent behavior. + public MongoDbProcessManagerFinder(IMongoClient mongoClient, MongoDbPersistenceOptions options, ILogger logger, TimeProvider? timeProvider = null) + { + ArgumentNullException.ThrowIfNull(mongoClient); + ArgumentNullException.ThrowIfNull(logger); + // Reserved for future time-dependent behavior (e.g. lease-based document locks). + _ = timeProvider; + _logger = logger; + + try + { + _mongoDatabase = mongoClient.GetDatabase(options.DatabaseName); + } + catch (MongoException ex) + { + throw new PersistenceException("Failed to connect to MongoDB for process manager persistence.", ex); + } + + // Saga state is correctness-sensitive: w:0 silently loses concurrent updates and + // wedges the saga on the next real conflict because the version field advances + // without the matching ReplaceOne hitting a row. Reject loudly at startup. + if (!mongoClient.Settings.WriteConcern.IsAcknowledged) + { + throw new InvalidOperationException( + "MongoDbProcessManagerFinder requires an acknowledged WriteConcern (w:1 or higher). " + + "WriteConcern.Unacknowledged (w:0) silently loses concurrent saga updates and " + + "wedges sagas on the next real conflict because the version field advances. " + + "Configure mongoClient.Settings.WriteConcern to a value where IsAcknowledged is true."); + } + } + + /// + public async Task?> FindDataAsync(IProcessManagerPropertyMapper mapper, Message message, CancellationToken cancellationToken = default) where T : class, IProcessManagerData + { + cancellationToken.ThrowIfCancellationRequested(); + + var mapping = (mapper.Mappings.FirstOrDefault(m => m.MessageType == message.GetType()) + ?? mapper.Mappings.FirstOrDefault(m => m.MessageType == typeof(Message))) ?? throw new InvalidOperationException( + $"No property mapping configured for message type '{message.GetType().FullName}' or the base Message type."); + var collectionName = GetCollectionName(); + var collection = _mongoDatabase.GetCollection>(collectionName); + await EnsureCorrelationIdIndexAsync(collection, collectionName, cancellationToken).ConfigureAwait(false); + + object? msgPropValue; + + try + { + msgPropValue = mapping.MessageProp.Invoke(message); + } + catch (Exception ex) + { + _logger.LogWarning(ex, "Failed to evaluate message property mapping for {MessageType}.", message.GetType().Name); + throw new PersistenceException( + $"Failed to evaluate message property mapping for message type '{message.GetType().Name}'.", ex); + } + + if (msgPropValue is null) + { + throw new ArgumentException("Message property expression evaluates to null.", nameof(message)); + } + + try + { + // Build dynamic expression to query the mapped property hierarchy + ParameterExpression pe = Expression.Parameter(typeof(MongoDbData), "t"); + Expression left = Expression.Property(pe, typeof(MongoDbData).GetTypeInfo().GetProperty("Data")!); + foreach (var prop in mapping.PropertiesHierarchy.Reverse()) + { + // Resolve the property by walking the type AND its implemented interfaces, + // so explicit-interface impls (where the property isn't reachable by string + // name on the runtime type) are matched via their declaring-type PropertyInfo. + var propInfo = left.Type.GetProperty(prop.Key, + BindingFlags.Public | BindingFlags.Instance | BindingFlags.FlattenHierarchy) + ?? left.Type.GetInterfaces() + // Property names in PropertiesHierarchy are expected to be unambiguous across + // a saga type's implemented interfaces. If two interfaces declare the same + // property name, FirstOrDefault here picks whichever the runtime returns first. + .Select(i => i.GetProperty(prop.Key, BindingFlags.Public | BindingFlags.Instance)) + .FirstOrDefault(p => p is not null) + ?? throw new InvalidOperationException( + $"Property '{prop.Key}' not found on type '{left.Type.FullName}' or its interfaces."); + left = Expression.MakeMemberAccess(left, propInfo); + } + + // Coerce the runtime value's type to the declared property type. msgPropValue's + // runtime type can differ from the saga property's declared type (e.g., the + // message has int but the saga has long, the message has T but the saga has + // Nullable, or the message has a concrete type but the saga has an interface). + // Without the convert, Expression.Equal rejects mismatched primitive types + // outright (InvalidOperationException), and even when types are compatible the + // BSON filter renderer uses the runtime type — the BSON path projection silently + // misses against documents stored under the declared type. Mirror the InMemory + // finder's GetPredicate(), which has used Convert(valueParam, key.PropertyType) + // since inception. + Expression right = Expression.Convert( + Expression.Constant(msgPropValue, msgPropValue.GetType()), + left.Type); + Expression expression; + + try + { + expression = Expression.Equal(left, right); + } + catch (InvalidOperationException ex) + { + throw new PersistenceException("Mapped incompatible types of ProcessManager Data and Message properties.", ex); + } + + var lambda = Expression.Lambda, bool>>(expression, pe); + return await collection.Find(lambda).FirstOrDefaultAsync(cancellationToken).ConfigureAwait(false); + } + catch (PersistenceException) + { + throw; + } + catch (MongoException ex) + { + throw new PersistenceException( + $"Failed to find process manager data for message type '{message.GetType().Name}'.", ex); + } + catch (BsonException ex) + { + // Schema drift: a stored saga document cannot be materialised into the current + // CLR type (e.g. a property's stored BSON type is incompatible with the declared + // property type, or a missing required field). Wrap as PersistenceException so + // the caller's catch surface is consistent; the dispatcher will surface this as + // a permanent dispatch failure rather than NACK-looping the broker. + throw new PersistenceException( + $"Schema drift: failed to deserialise saga document for message type '{message.GetType().Name}'. A stored document is incompatible with the current CLR shape.", ex); + } + catch (FormatException ex) + { + // BsonClassMapSerializer throws bare FormatException when a property's stored + // BSON type cannot be coerced to the CLR property type (e.g. string-in-BSON when + // the CLR property is int). Same poison-row mitigation as the BsonException catch. + throw new PersistenceException( + $"Schema drift: failed to deserialise saga document for message type '{message.GetType().Name}'. A stored property's BSON type is incompatible with the current CLR shape.", ex); + } + } + + /// + public async Task InsertDataAsync(IProcessManagerData data, CancellationToken cancellationToken = default) + { + cancellationToken.ThrowIfCancellationRequested(); + + var collectionName = GetCollectionName(data); + var dataType = data.GetType(); + + // Look up or build the compiled delegate for this concrete type. MakeGenericMethod + // is called only once per type; subsequent calls use the cached delegate directly, + // avoiding reflection overhead on the hot path. + // + // InsertDataTypedAsync takes a T parameter, so we build a thin Expression wrapper + // that accepts IProcessManagerData and down-casts to T before the real call — matching + // the pattern used by InMemoryProcessManagerFinder.BuildMemoryDataFactory. + var insertDelegate = InsertDelegateCache.GetOrAdd(dataType, static t => + { + var genericMethod = typeof(MongoDbProcessManagerFinder) + .GetMethod(nameof(InsertDataTypedAsync), BindingFlags.NonPublic | BindingFlags.Instance)! + .MakeGenericMethod(t); + + var finderParam = Expression.Parameter(typeof(MongoDbProcessManagerFinder), "finder"); + var dataParam = Expression.Parameter(typeof(IProcessManagerData), "data"); + var collectionParam = Expression.Parameter(typeof(string), "collectionName"); + var ctParam = Expression.Parameter(typeof(CancellationToken), "cancellationToken"); + + // Cast IProcessManagerData → T so the call matches the typed parameter. + var castedData = Expression.Convert(dataParam, t); + var call = Expression.Call(finderParam, genericMethod, castedData, collectionParam, ctParam); + + return Expression.Lambda>( + call, finderParam, dataParam, collectionParam, ctParam).Compile(); + }); + + try + { + await insertDelegate(this, data, collectionName, cancellationToken).ConfigureAwait(false); + } + catch (MongoWriteException ex) when (ex.WriteError?.Category == ServerErrorCategory.DuplicateKey) + { + // Concurrent first-message delivery for the same CorrelationId. The unique index + // on CorrelationId signals the loser; surface as ConcurrencyException so the + // caller can re-find the just-committed row and take the update path. The base + // MongoException catch would otherwise collapse this into a permanent + // PersistenceException that ProcessManagerProcessor's retry loop can't recover + // from (it only retries on ConcurrencyException). + throw new ConcurrencyException( + $"Concurrent insert detected for CorrelationId '{data.CorrelationId}'; another writer committed first.", ex); + } + catch (MongoException ex) + { + throw new PersistenceException( + $"Failed to insert process manager data with CorrelationId '{data.CorrelationId}'.", ex); + } + catch (BsonException ex) + { + // BSON serialisation failure (e.g. a CLR property cannot be represented in BSON). + // Surface as PersistenceException so the caller's catch surface is consistent. + throw new PersistenceException( + $"BSON serialisation failure inserting saga with CorrelationId '{data.CorrelationId}'.", ex); + } + } + + private async Task InsertDataTypedAsync(T data, string collectionName, CancellationToken cancellationToken) where T : class, IProcessManagerData + { + var collection = _mongoDatabase.GetCollection>(collectionName); + await EnsureCorrelationIdIndexAsync(collection, collectionName, cancellationToken).ConfigureAwait(false); + + var mongoDbData = new MongoDbData + { + Data = data, + Version = 1, + Id = Guid.NewGuid() + }; + + await collection.InsertOneAsync(mongoDbData, cancellationToken: cancellationToken).ConfigureAwait(false); + } + + /// + /// Pre-creates the unique CorrelationId index for the supplied saga data type, + /// dispatching by reflection to the generic . + /// Used by the startup-time hosted service to close the cross-process race window + /// where two cold-started processes could insert duplicate saga rows before either + /// one called the lazy index-creation path on the I/O hot path. + /// + /// + /// The compiled delegate is cached per type so the reflection / expression-tree + /// cost is paid once per saga data type for the lifetime of the process. + /// + internal Task EnsureCorrelationIdIndexForTypeAsync(Type dataType, CancellationToken cancellationToken) + { + ArgumentNullException.ThrowIfNull(dataType); + + var del = EnsureIndexDelegateCache.GetOrAdd(dataType, static t => + { + // Build a delegate equivalent to: + // (finder, ct) => + // { + // var collection = finder._mongoDatabase.GetCollection>(collectionName, null); + // return finder.EnsureCorrelationIdIndexAsync(collection, collectionName, ct); + // } + // Collection name is computed at delegate-build time (deterministic per + // type T) using the same SanitizeCollectionName(FullName ?? Name) logic as GetCollectionName(). + var dataMongoType = typeof(MongoDbData<>).MakeGenericType(t); + + var collectionMethod = typeof(IMongoDatabase) + .GetMethods() + .First(m => string.Equals(m.Name, nameof(IMongoDatabase.GetCollection), StringComparison.Ordinal) + && m.IsGenericMethodDefinition + && m.GetParameters().Length == 2) + .MakeGenericMethod(dataMongoType); + + var ensureMethod = typeof(MongoDbProcessManagerFinder) + .GetMethod(nameof(EnsureCorrelationIdIndexAsync), BindingFlags.NonPublic | BindingFlags.Instance)! + .MakeGenericMethod(t); + + var finderParam = Expression.Parameter(typeof(MongoDbProcessManagerFinder), "finder"); + var ctParam = Expression.Parameter(typeof(CancellationToken), "ct"); + + var collectionName = SanitizeCollectionName(t.FullName ?? t.Name); + + var dbField = Expression.Field(finderParam, nameof(_mongoDatabase)); + var getCollectionCall = Expression.Call( + dbField, + collectionMethod, + Expression.Constant(collectionName), + Expression.Constant(null, typeof(MongoCollectionSettings))); + + var call = Expression.Call( + finderParam, + ensureMethod, + getCollectionCall, + Expression.Constant(collectionName), + ctParam); + + return Expression.Lambda>( + call, finderParam, ctParam).Compile(); + }); + + return del(this, cancellationToken); + } + + /// + /// + /// Retry contract on cancellation. If + /// is thrown, the server-side state is undefined: cancellation may have fired before + /// or after the server committed the update. A caller that retries without re-reading + /// state may wedge the saga — if the server has actually committed, the caller's + /// stale Version will mismatch on the retry's concurrency filter and surface + /// a spurious . Callers MUST call + /// first on retry to refresh the version, then rebuild + /// the write record around the current server state. + /// + public async Task UpdateDataAsync(IPersistenceData persistenceData, CancellationToken cancellationToken = default) where T : class, IProcessManagerData + { + cancellationToken.ThrowIfCancellationRequested(); + + var collectionName = GetCollectionName(); + var versionData = (MongoDbData)persistenceData; + long currentVersion = versionData.Version; + + // Build a separate write record so the caller's versionData is not mutated + // by the bump until we see a confirmed success. Any failure path (including + // OperationCanceledException, TaskCanceledException, or an unexpected + // exception type) therefore leaves the caller's Version intact. + // + // RETRY CONTRACT: a cancelled update has TWO possible server-side states — + // (a) cancellation fired BEFORE the server committed the ReplaceOne. + // The caller's Version still matches the server; a retry succeeds. + // (b) cancellation fired AFTER server commit but BEFORE the client + // received ack. The server is now at Version N+1; the caller still + // believes Version N; a retry's filter (Version == N) MISSES and + // throws ConcurrencyException, even though the write succeeded. + // Callers that catch OperationCanceledException and intend to retry MUST + // call FindDataAsync first to re-read the current version and rebuild + // their write record. This contract is documented in the public xmldoc on + // UpdateDataAsync above. + var writeRecord = new MongoDbData + { + Id = versionData.Id, + Version = currentVersion + 1, + Data = versionData.Data, + }; + + try + { + var collection = _mongoDatabase.GetCollection>(collectionName); + await EnsureCorrelationIdIndexAsync(collection, collectionName, cancellationToken).ConfigureAwait(false); + + var filter = Builders>.Filter.And( + Builders>.Filter.Eq(x => x.Data.CorrelationId, versionData.Data.CorrelationId), + Builders>.Filter.Eq(x => x.Version, currentVersion) + ); + var result = await collection.ReplaceOneAsync(filter, writeRecord, cancellationToken: cancellationToken).ConfigureAwait(false); + + if (result.IsAcknowledged && result.MatchedCount == 0) + { + throw new ConcurrencyException( + $"Concurrency conflict: ProcessManagerData with CorrelationId {versionData.Data.CorrelationId} and Version {currentVersion} could not be updated."); + } + + // Only reflect the bump on the caller's instance after the write is + // acknowledged and the filter matched a row. + versionData.Version = currentVersion + 1; + } + catch (ConcurrencyException) + { + throw; + } + catch (PersistenceException) + { + throw; + } + catch (MongoException ex) + { + throw new PersistenceException( + $"Failed to update process manager data with CorrelationId '{persistenceData.Data.CorrelationId}'.", ex); + } + catch (BsonException ex) + { + throw new PersistenceException( + $"BSON serialisation failure updating saga with CorrelationId '{persistenceData.Data.CorrelationId}'.", ex); + } + catch (FormatException ex) + { + // BsonClassMapSerializer FormatException — see FindDataAsync catch for rationale. + throw new PersistenceException( + $"Schema drift updating saga with CorrelationId '{persistenceData.Data.CorrelationId}'.", ex); + } + } + + /// + public async Task DeleteDataAsync(IPersistenceData persistenceData, CancellationToken cancellationToken = default) where T : class, IProcessManagerData + { + cancellationToken.ThrowIfCancellationRequested(); + ArgumentNullException.ThrowIfNull(persistenceData); + + var collectionName = GetCollectionName(); + var expectedVersion = ((MongoDbData)persistenceData).Version; + var correlationId = persistenceData.Data.CorrelationId; + + DeleteResult result; + try + { + var collection = _mongoDatabase.GetCollection>(collectionName); + await EnsureCorrelationIdIndexAsync(collection, collectionName, cancellationToken).ConfigureAwait(false); + + // Match on {CorrelationId, Version} so a delete racing an in-flight update + // cannot silently drop a saga mid-transition. Same contract as UpdateDataAsync. + var filter = Builders>.Filter.And( + Builders>.Filter.Eq(x => x.Data.CorrelationId, correlationId), + Builders>.Filter.Eq(x => x.Version, expectedVersion)); + result = await collection.DeleteOneAsync(filter, cancellationToken).ConfigureAwait(false); + } + catch (MongoException ex) + { + throw new PersistenceException( + $"Failed to delete process manager data with CorrelationId '{correlationId}'.", ex); + } + catch (BsonException ex) + { + throw new PersistenceException( + $"BSON failure deleting saga with CorrelationId '{correlationId}'.", ex); + } + catch (FormatException ex) + { + throw new PersistenceException( + $"Schema drift deleting saga with CorrelationId '{correlationId}'.", ex); + } + + if (result.IsAcknowledged && result.DeletedCount == 0) + { + throw new ConcurrencyException( + $"Concurrency conflict: ProcessManagerData with CorrelationId {correlationId} and Version {expectedVersion} could not be deleted."); + } + } + + private async Task EnsureCorrelationIdIndexAsync(IMongoCollection> collection, string collectionName, CancellationToken cancellationToken) where T : class, IProcessManagerData + { + // Fast path: index already confirmed by this process instance. + if (_indexedCollections.ContainsKey(collectionName)) + { + return; + } + + await _indexCreationSemaphore.WaitAsync(cancellationToken).ConfigureAwait(false); + try + { + // Double-check under the semaphore so a thread that was waiting while another + // thread created the index does not issue a redundant CreateOneAsync. + if (_indexedCollections.ContainsKey(collectionName)) + { + return; + } + + var indexKeys = Builders>.IndexKeys.Ascending(x => x.Data.CorrelationId); + var indexModel = new CreateIndexModel>(indexKeys, new CreateIndexOptions { Unique = true }); + try + { + await collection.Indexes.CreateOneAsync(indexModel, cancellationToken: cancellationToken).ConfigureAwait(false); + } + catch (MongoCommandException ex) when (BenignIndexCodes.Contains(ex.Code)) + { + // 85 IndexOptionsConflict / 86 IndexKeySpecsConflict — another process + // created a compatible index concurrently. Treat as success. + _logger.LogDebug("Concurrent index creation for '{CollectionName}': {Code} {Message}", collectionName, ex.Code, ex.Message); + } + + // Flip the marker ONLY after index creation succeeds (or benign conflict). + // Previously the marker was set before CreateOneAsync so a concurrent caller + // could short-circuit, skip index creation, and then race an insert before + // the unique index existed — admitting duplicate CorrelationId rows. + _indexedCollections.TryAdd(collectionName, true); + } + finally + { + _indexCreationSemaphore.Release(); + } + } + + // Mongo collection names containing +`[], from generic type names break tooling + // (mongosh autocomplete, mongo-express, etc.). Replace those characters with '_' + // so the collection name is portable. + // MA0009: regex is a pure character class — O(n), no backtracking, no ReDoS risk. +#pragma warning disable MA0009 + [GeneratedRegex(@"[+`\[\],]", RegexOptions.None)] + private static partial Regex CollectionNameSanitizerRegex(); +#pragma warning restore MA0009 + + internal static string SanitizeCollectionName(string raw) + => CollectionNameSanitizerRegex().Replace(raw, "_"); + + // FullName avoids short-name collisions between two saga data types that share a + // class name across different namespaces. Name is a last-resort fallback for the + // rare types where FullName is null (e.g., open generics in reflection contexts). + private static string GetCollectionName() where T : class, IProcessManagerData + => SanitizeCollectionName(typeof(T).FullName ?? typeof(T).Name); + + private static string GetCollectionName(IProcessManagerData data) + { + var t = data.GetType(); + return SanitizeCollectionName(t.FullName ?? t.Name); + } +} diff --git a/src/ServiceConnect.Persistence.MongoDb/ProcessManager/MongoDbProcessManagerIndexInitializer.cs b/src/ServiceConnect.Persistence.MongoDb/ProcessManager/MongoDbProcessManagerIndexInitializer.cs new file mode 100644 index 000000000..421cd4880 --- /dev/null +++ b/src/ServiceConnect.Persistence.MongoDb/ProcessManager/MongoDbProcessManagerIndexInitializer.cs @@ -0,0 +1,48 @@ +using Microsoft.Extensions.Hosting; +using Microsoft.Extensions.Logging; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Persistence.MongoDb; + +/// +/// Pre-creates per-saga unique CorrelationId indexes at startup. Closes the +/// cross-process race window where two cold-started processes could insert +/// duplicate saga rows before either one called the lazy index-creation path. +/// The lazy fallback in is retained +/// so a startup failure (transient connectivity, auth flap) does not wedge +/// the process — it just retries on first I/O. +/// +internal sealed class MongoDbProcessManagerIndexInitializer( + MongoDbProcessManagerFinder finder, + IProcessManagerTypeRegistry registry, + ILogger logger) : IHostedService +{ + private readonly MongoDbProcessManagerFinder _finder = finder ?? throw new ArgumentNullException(nameof(finder)); + private readonly IProcessManagerTypeRegistry _registry = registry ?? throw new ArgumentNullException(nameof(registry)); + private readonly ILogger _logger = logger ?? throw new ArgumentNullException(nameof(logger)); + + public async Task StartAsync(CancellationToken cancellationToken) + { + foreach (var dataType in _registry.SagaDataTypes) + { + try + { + await _finder.EnsureCorrelationIdIndexForTypeAsync(dataType, cancellationToken).ConfigureAwait(false); + } + catch (OperationCanceledException) + { + throw; + } + catch (Exception ex) + { + // Lazy fallback in the I/O path will retry. We log a warning so the + // operator notices the startup miss but the bus boots and runs. + _logger.LogWarning(ex, + "Failed to pre-create CorrelationId index for {SagaDataType}; lazy fallback will retry on first I/O.", + dataType.FullName); + } + } + } + + public Task StopAsync(CancellationToken cancellationToken) => Task.CompletedTask; +} diff --git a/src/ServiceConnect.Persistence.MongoDb/ServiceConnect.Persistence.MongoDb.csproj b/src/ServiceConnect.Persistence.MongoDb/ServiceConnect.Persistence.MongoDb.csproj new file mode 100644 index 000000000..8612c5067 --- /dev/null +++ b/src/ServiceConnect.Persistence.MongoDb/ServiceConnect.Persistence.MongoDb.csproj @@ -0,0 +1,51 @@ + + + enable + enable + ServiceConnect.Persistence.MongoDb + ServiceConnect.Persistence.MongoDb + ServiceConnect.Persistence.MongoDb + MongoDB process manager, aggregator and timeout persistence for ServiceConnect, with optional SSL/TLS. + ServiceConnect;Persistence;MongoDB;MessageBus;Messaging;Message;Bus;Service + + + + + + + + <_Parameter1>ServiceConnect.UnitTests + + + <_Parameter1>ServiceConnect.EndToEndTests + + + + + + <_Parameter1>DynamicProxyGenAssembly2, PublicKey=0024000004800000940000000602000000240000525341310004000001000100c547cac37abd99c8db225ef2f6c8a3602f3b3606cc9891605d02baa56104f4cfc0734aa39b93bf7852f7d9266654753cc297e7d2edfe0bac1cdcf9f717241550e0a7b191195b7667bb4f64bcb8e2121380fd1d9d46ad2d92d2d15605093924cceaf74c4861eff62abf69b9291ed0a340e113be11e6a7d3113e92484cf7045cc7 + + + + + + + + + + + diff --git a/src/ServiceConnect.Persistence.MongoDb/Timeout/MongoDbTimeoutStore.cs b/src/ServiceConnect.Persistence.MongoDb/Timeout/MongoDbTimeoutStore.cs new file mode 100644 index 000000000..71cb02e9a --- /dev/null +++ b/src/ServiceConnect.Persistence.MongoDb/Timeout/MongoDbTimeoutStore.cs @@ -0,0 +1,566 @@ +using Microsoft.Extensions.Logging; +using MongoDB.Bson; +using MongoDB.Driver; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Exceptions; +using MongoClientSessionHandle = MongoDB.Driver.IClientSessionHandle; + +namespace ServiceConnect.Persistence.MongoDb; + +/// +/// MongoDB implementation of timeout persistence and lock-aware timeout leasing. +/// +internal sealed class MongoDbTimeoutStore : ITimeoutStore +{ + private readonly IMongoClient _mongoClient; + private readonly IMongoDatabase _mongoDatabase; + private readonly ILogger _logger; + private readonly TimeProvider _timeProvider; + private readonly int _batchSize; + private readonly TimeSpan _lockLeaseDuration; + + // Per-instance index-creation cache. EnsureTimeoutIndexAsync is on every Insert / + // Get / Remove / Release / Reap path; without this flag, every dispatch round-trips + // a DropOneAsync (404 in steady state) plus a CreateManyAsync of three index specs. + // Mirrors the saga finder's _indexedCollections + semaphore pattern (and the + // aggregator's index init guard). Volatile.Read/Write give ordered visibility for + // the flag without requiring Interlocked on the success path. + private int _indexed; + // _indexInitSemaphore is intentionally NOT Disposed: SemaphoreSlim.Dispose only + // releases the lazily-allocated WaitHandle, and we never call AvailableWaitHandle, + // so disposal is a functional no-op. Mirrors the saga finder precedent. + private readonly SemaphoreSlim _indexInitSemaphore = new(1, 1); + + private const string TimeoutsCollectionName = "Timeouts"; + + static MongoDbTimeoutStore() + { + // Ensure the canonical Guid serializer is registered before any direct-ctor + // path serialises a Guid. DI factories also call this; the static ctor covers + // tests and custom compositions that bypass DI. + MongoDbPersistenceExtensions.EnsureGuidSerializerRegistered(); + } + + /// + /// Creates a timeout store backed by MongoDB. + /// + /// The MongoDB client. + /// The persistence options used to select the database. + /// The logger dependency required by the public API. + /// The time source used for lock and due-time calculations. + public MongoDbTimeoutStore( + IMongoClient mongoClient, + MongoDbPersistenceOptions options, + ILogger logger, + TimeProvider? timeProvider = null) + { + ArgumentNullException.ThrowIfNull(mongoClient); + ArgumentNullException.ThrowIfNull(logger); + _mongoClient = mongoClient; + _logger = logger; + _timeProvider = timeProvider ?? TimeProvider.System; + if (options.TimeoutBatchSize <= 0) + { + throw new ArgumentOutOfRangeException( + nameof(options), options.TimeoutBatchSize, + $"{nameof(MongoDbPersistenceOptions.TimeoutBatchSize)} must be positive."); + } + + _batchSize = options.TimeoutBatchSize; + if (options.TimeoutLockLeaseDuration <= TimeSpan.Zero) + { + throw new ArgumentOutOfRangeException( + nameof(options), options.TimeoutLockLeaseDuration, + $"{nameof(MongoDbPersistenceOptions.TimeoutLockLeaseDuration)} must be positive."); + } + + _lockLeaseDuration = options.TimeoutLockLeaseDuration; + + // Timeout dispatch is correctness-sensitive: w:0 makes RemoveDispatchedTimeoutAsync / + // ReleaseDispatchedTimeoutAsync return result.IsAcknowledged==false for every call, + // and the no-op-detection branches that gate on IsAcknowledged become silent + // successes — so a stale-lease no-op delete looks like a successful delete and the + // reaper hands the same row to another worker. Reject loudly at startup, mirroring + // MongoDbProcessManagerFinder. + if (!mongoClient.Settings.WriteConcern.IsAcknowledged) + { + throw new InvalidOperationException( + "MongoDbTimeoutStore requires an acknowledged WriteConcern (w:1 or higher). " + + "WriteConcern.Unacknowledged (w:0) makes lock-aware delete/release operations " + + "silently no-op-succeed, allowing duplicate timeout dispatch. " + + "Configure mongoClient.Settings.WriteConcern to a value where IsAcknowledged is true."); + } + + try + { + _mongoDatabase = mongoClient.GetDatabase(options.DatabaseName); + } + catch (MongoException ex) + { + throw new PersistenceException("Failed to connect to MongoDB for timeout persistence.", ex); + } + } + + /// + public async Task InsertTimeoutAsync(TimeoutData timeoutData, CancellationToken cancellationToken = default) + { + ArgumentNullException.ThrowIfNull(timeoutData); + if (timeoutData.Id == Guid.Empty) + { + throw new ArgumentException("TimeoutData.Id must not be Guid.Empty.", nameof(timeoutData)); + } + + cancellationToken.ThrowIfCancellationRequested(); + + try + { + var collection = _mongoDatabase.GetCollection(TimeoutsCollectionName); + await EnsureTimeoutIndexAsync(collection, cancellationToken).ConfigureAwait(false); + + await collection.InsertOneAsync(timeoutData, cancellationToken: cancellationToken).ConfigureAwait(false); + } + catch (MongoException ex) + { + throw new PersistenceException("Failed to insert timeout data.", ex); + } + } + + /// + public async Task GetTimeoutsBatchAsync(int? batchSize = null, CancellationToken cancellationToken = default) + { + if (batchSize is { } cap && cap <= 0) + { + throw new ArgumentOutOfRangeException(nameof(batchSize), cap, "batchSize must be greater than zero when supplied."); + } + + cancellationToken.ThrowIfCancellationRequested(); + + MongoClientSessionHandle? session = null; + try + { + var collection = _mongoDatabase.GetCollection(TimeoutsCollectionName); + await EnsureTimeoutIndexAsync(collection, cancellationToken).ConfigureAwait(false); + var utcNow = _timeProvider.GetUtcNow(); + + // Causally-consistent client session so the read of the rows we just lock-updated + // hits a node that has applied the update (relevant under primary failover). + try + { + session = await _mongoClient.StartSessionAsync( + new ClientSessionOptions { CausalConsistency = true }, + cancellationToken).ConfigureAwait(false); + } + catch (NotSupportedException) + { + // Standalone mongods / older servers don't support sessions; fall back to + // the unsessioned path — still better than failing the whole poll. + } + catch (MongoException ex) + { + // Configuration/transient driver errors during session establishment shouldn't + // fail the whole poll — fall back to the unsessioned path. The fallback is + // less safe under primary failover (read-after-write lag) but better than zero. + _logger.LogWarning(ex, "MongoDB session establishment failed; falling back to unsessioned poll."); + } + + var sessionId = Guid.NewGuid(); + // Due-filter anchored on mongod's `$$NOW` so cross-host clock skew between + // workers does not let one host see a lease as still-held while another sees + // it as expired. The CLAIM update below also writes LockExpiresAt as + // `$$NOW + leaseDuration` (pipeline-style update) for the same reason. + var dueUnlockedFilter = BuildDueTimeoutFilterServerTime(); + var lockUpdate = BuildLeaseClaimUpdate(sessionId); + + // Two-step claim: pull up to the effective batch cap candidate ids (UpdateMany + // has no .Limit()), then UpdateMany filtered to those ids — still guarded by + // the due-unlocked predicate so anything another worker raced in between is + // silently skipped. The caller-supplied cap overrides the configured default. + var candidateIds = await FindAsync(collection, dueUnlockedFilter, + Builders.Sort.Ascending(x => x.Time).Ascending(x => x.Id), + batchSize ?? _batchSize, session, cancellationToken) + .ConfigureAwait(false); + + if (candidateIds.Count == 0) + { + return new TimeoutsBatch(); + } + + var batchFilter = dueUnlockedFilter & + Builders.Filter.In(x => x.Id, candidateIds); + + // Mark the intent to claim the lease BEFORE the UpdateMany await. If the call + // commits server-side but the awaiter resumes into a cancellation (OCE thrown + // before any post-await statement runs), the catch below would otherwise skip + // the release and orphan the lease until the reaper reclaims it. Setting the + // flag pre-await means a release attempt always fires on any throw between here + // and the read-back; the release filter is gated on LockedBy == sessionId so + // attempting to release a claim that never actually committed is a no-op. + var leaseClaimed = true; + var due = new List(); + try + { + if (session is not null) + { + await collection.UpdateManyAsync(session, batchFilter, lockUpdate, cancellationToken: cancellationToken).ConfigureAwait(false); + } + else + { + await collection.UpdateManyAsync(batchFilter, lockUpdate, cancellationToken: cancellationToken).ConfigureAwait(false); + } + + // Read back exactly the rows we just claimed (LockedBy == sessionId, lease still valid). + // The LockExpiresAt > utcNow guard prevents a race where the lease expired between + // the UpdateMany claim and this read-back; without it, a stale claim could return + // rows the reaper has already unlocked and re-assigned to another worker. + // LockExpiresAt > $$NOW evaluated server-side — matches the server-time + // claim above. A client-clock comparison here could race a clock-skewed + // worker into seeing the lease as expired between claim and read-back. + var ownedFilter = Builders.Filter.Eq(x => x.LockedBy, sessionId) + & Builders.Filter.Eq(x => x.Locked, true) + & LeaseHeldFilter(); + // Sort by (Time, Id) — same shape as the candidate-id pass — so dispatch + // order within a batch matches Time order. Without this, MongoDB's natural + // cursor order does not respect insertion-time semantics. + var readBackSort = Builders.Sort + .Ascending(x => x.Time) + .Ascending(x => x.Id); + var readBackOptions = new FindOptions { Sort = readBackSort }; + using var cursor = session is not null + ? await collection.FindAsync(session, ownedFilter, readBackOptions, cancellationToken).ConfigureAwait(false) + : await collection.FindAsync(ownedFilter, readBackOptions, cancellationToken).ConfigureAwait(false); + await cursor.ForEachAsync(due.Add, cancellationToken).ConfigureAwait(false); + } + catch (Exception) + { + // Any failure between successful claim and successful read-back orphans the + // lease — held by a sessionId no caller will use. Best-effort release lets the + // next poll see the rows immediately rather than waiting on the reaper / + // lease-expiry. Release uses CancellationToken.None — the cancelling token (or + // a transient MongoException) must not preempt cleanup. Swallow any failure + // here; reaper / lease-expiry is the ultimate recovery. + if (leaseClaimed) + { + try + { + var releaseFilter = Builders.Filter.Eq(x => x.LockedBy, sessionId) + & Builders.Filter.Eq(x => x.Locked, true); + var releaseUpdate = Builders.Update + .Set(x => x.Locked, false) + .Set(x => x.LockedBy, Guid.Empty) + .Set(x => x.LockExpiresAt, null); + await collection.UpdateManyAsync(releaseFilter, releaseUpdate, cancellationToken: CancellationToken.None).ConfigureAwait(false); + } + catch (Exception ex) + { + _logger.LogWarning(ex, "Best-effort lease release after error failed for session {SessionId}; reaper will reclaim.", sessionId); + } + } + throw; + } + + return new TimeoutsBatch { DueTimeouts = due }; + } + catch (MongoException ex) + { + throw new PersistenceException("Failed to get timeouts batch.", ex); + } + finally + { + session?.Dispose(); + } + } + + /// + public async Task RemoveDispatchedTimeoutAsync(Guid id, Guid? lockOwner = null, CancellationToken cancellationToken = default) + { + cancellationToken.ThrowIfCancellationRequested(); + + DeleteResult result; + try + { + var collection = _mongoDatabase.GetCollection(TimeoutsCollectionName); + await EnsureTimeoutIndexAsync(collection, cancellationToken).ConfigureAwait(false); + + // null lockOwner is the unconditional id-only path — no Locked/LockedBy guard + // so a leased row is genuinely deleted (matches the new contract; the previous + // LockedBy == Guid.Empty filter caused silent no-op). + FilterDefinition filter = Builders.Filter.Eq(x => x.Id, id); + if (lockOwner is { } owner) + { + // Lease-still-held evaluated server-side against $$NOW — see BuildLeaseClaimUpdate + // for the symmetric write side. + filter &= Builders.Filter.Eq(x => x.Locked, true) & + Builders.Filter.Eq(x => x.LockedBy, owner) & + LeaseHeldFilter(); + } + result = await collection.DeleteOneAsync(filter, cancellationToken).ConfigureAwait(false); + } + catch (MongoException ex) + { + throw new PersistenceException($"Failed to remove dispatched timeout with Id '{id}'.", ex); + } + + // Lease-checked path: zero matches means the lease has been reassigned (reaper + // fired, or another worker re-claimed after lease expiry). The timeout is still + // in the store and must not be treated as dispatched. + if (lockOwner is { } expected && result.IsAcknowledged && result.DeletedCount == 0) + { + throw new ConcurrencyException( + $"Lease for timeout '{id}' was invalidated; lock owner '{expected}' no longer holds the lease."); + } + } + + /// + public async Task ReleaseDispatchedTimeoutAsync(Guid id, Guid? lockOwner = null, CancellationToken cancellationToken = default) + { + cancellationToken.ThrowIfCancellationRequested(); + + UpdateResult result; + try + { + var collection = _mongoDatabase.GetCollection(TimeoutsCollectionName); + await EnsureTimeoutIndexAsync(collection, cancellationToken).ConfigureAwait(false); + + FilterDefinition filter = Builders.Filter.Eq(x => x.Id, id); + if (lockOwner is { } owner) + { + // Lease-still-held evaluated server-side against $$NOW — see BuildLeaseClaimUpdate. + filter &= Builders.Filter.Eq(x => x.Locked, true) & + Builders.Filter.Eq(x => x.LockedBy, owner) & + LeaseHeldFilter(); + } + + var update = Builders.Update + .Set(x => x.Locked, false) + .Set(x => x.LockedBy, Guid.Empty) + .Set(x => x.LockExpiresAt, null); + result = await collection.UpdateOneAsync(filter, update, cancellationToken: cancellationToken).ConfigureAwait(false); + } + catch (MongoException ex) + { + throw new PersistenceException($"Failed to release dispatched timeout with Id '{id}'.", ex); + } + + if (lockOwner is { } expected && result.IsAcknowledged && result.MatchedCount == 0) + { + throw new ConcurrencyException( + $"Lease for timeout '{id}' was invalidated; lock owner '{expected}' no longer holds the lease."); + } + } + + /// + /// Clears lock fields on every row whose lease has expired, independent + /// of the main poll. Safe to invoke from a background timer at a faster + /// cadence than the dispatch poll — expired rows become due-unlocked + /// immediately and the next poll (or this reaper) picks them up. + /// + /// The number of rows unlocked by this pass. + public async Task ReapStaleLeasesAsync(CancellationToken cancellationToken = default) + { + cancellationToken.ThrowIfCancellationRequested(); + + try + { + var collection = _mongoDatabase.GetCollection(TimeoutsCollectionName); + await EnsureTimeoutIndexAsync(collection, cancellationToken).ConfigureAwait(false); + + // Expired-lease filter anchored on $$NOW so the reap decision is consistent + // with the claim's server-time write. A client-clock comparison here could + // reap a still-valid lease under cross-host skew, admitting duplicate dispatch. + var filter = Builders.Filter.Eq(x => x.Locked, true) & + LeaseExpiredFilter(); + var update = Builders.Update + .Set(x => x.Locked, false) + .Set(x => x.LockedBy, Guid.Empty) + .Set(x => x.LockExpiresAt, null); + var result = await collection.UpdateManyAsync(filter, update, cancellationToken: cancellationToken).ConfigureAwait(false); + return result.IsAcknowledged ? result.ModifiedCount : 0L; + } + catch (MongoException ex) + { + throw new PersistenceException("Failed to reap stale timeout leases.", ex); + } + } + + // The lease-time predicates and the lease-claim update all anchor on mongod's `$$NOW` + // server-side aggregation variable rather than the caller's clock. NTP-bounded skew + // (sub-second) on a single host is fine, but active-active deployments with + // unsynchronized clocks would otherwise let one worker see a lease as still-held + // while another sees it as expired — admitting duplicate dispatch of the same timeout. + // Anchoring both writes (`$add: ["$$NOW", leaseMs]`) and reads (`$lte/$gt against $$NOW`) + // on the database server's monotonic-within-mongod clock removes that hazard. + + /// + /// Returns a filter equivalent to Locked == false OR LockExpiresAt <= $$NOW. + /// + private static FilterDefinition LeaseExpiredOrUnlockedFilter() => + new BsonDocumentFilterDefinition( + new BsonDocument("$expr", + new BsonDocument("$or", new BsonArray + { + new BsonDocument("$eq", new BsonArray { "$Locked", false }), + new BsonDocument("$lte", new BsonArray { "$LockExpiresAt", "$$NOW" }), + }))); + + /// + /// Returns a filter equivalent to Time <= $$NOW. + /// + private static FilterDefinition DueByServerTimeFilter() => + new BsonDocumentFilterDefinition( + new BsonDocument("$expr", + new BsonDocument("$lte", new BsonArray { "$Time", "$$NOW" }))); + + /// + /// Returns a filter equivalent to LockExpiresAt > $$NOW (lease still held). + /// + private static FilterDefinition LeaseHeldFilter() => + new BsonDocumentFilterDefinition( + new BsonDocument("$expr", + new BsonDocument("$gt", new BsonArray { "$LockExpiresAt", "$$NOW" }))); + + /// + /// Returns a filter equivalent to LockExpiresAt <= $$NOW (lease expired). + /// + private static FilterDefinition LeaseExpiredFilter() => + new BsonDocumentFilterDefinition( + new BsonDocument("$expr", + new BsonDocument("$lte", new BsonArray { "$LockExpiresAt", "$$NOW" }))); + + /// + /// Builds a pipeline-style update that stamps Locked = true, LockedBy = sessionId, + /// and LockExpiresAt = $$NOW + leaseDurationMs — all on the server's clock so the value + /// is comparable against later `$$NOW` reads without inter-host skew. + /// + private UpdateDefinition BuildLeaseClaimUpdate(Guid sessionId) + { + var leaseMs = (long)_lockLeaseDuration.TotalMilliseconds; + var stage = new BsonDocument("$set", new BsonDocument + { + { "Locked", true }, + { "LockedBy", new BsonBinaryData(sessionId, GuidRepresentation.Standard) }, + { "LockExpiresAt", new BsonDocument("$add", new BsonArray { "$$NOW", leaseMs }) }, + }); + var pipeline = new BsonDocumentStagePipelineDefinition([stage]); + return new PipelineUpdateDefinition(pipeline); + } + + internal static FilterDefinition BuildDueTimeoutFilter(DateTimeOffset utcNow) + { + // Backward-compatible signature used by a unit test. The production poll path + // calls BuildDueTimeoutFilterServerTime() so lease evaluation anchors on $$NOW; + // this overload preserves the historic shape for tests that render the filter + // into JSON to assert on its structure. + var unlocked = Builders.Filter.Eq(x => x.Locked, false); + var expiredLease = Builders.Filter.Lte(x => x.LockExpiresAt, utcNow); + var due = Builders.Filter.Lte(x => x.Time, utcNow); + return due & (unlocked | expiredLease); + } + + private static FilterDefinition BuildDueTimeoutFilterServerTime() => + DueByServerTimeFilter() & LeaseExpiredOrUnlockedFilter(); + + private static async Task> FindAsync( + IMongoCollection collection, + FilterDefinition filter, + SortDefinition sort, + int limit, + MongoClientSessionHandle? session, + CancellationToken cancellationToken) + { + var options = new FindOptions + { + Sort = sort, + Limit = limit, + Projection = Builders.Projection.Expression(x => x.Id), + }; + using var cursor = session is not null + ? await collection.FindAsync(session, filter, options, cancellationToken).ConfigureAwait(false) + : await collection.FindAsync(filter, options, cancellationToken).ConfigureAwait(false); + return await cursor.ToListAsync(cancellationToken).ConfigureAwait(false); + } + + private async Task EnsureTimeoutIndexAsync(IMongoCollection collection, CancellationToken cancellationToken) + { + // Per-instance cache: createIndexes is idempotent server-side, but the round + // trip on every Insert / Get / Remove / Release / Reap is wasted work and the + // DropOneAsync below 404s every steady-state call (polluting Mongo logs). + // Once the indexes are confirmed for this process, skip both round-trips. + // If an administrator drops indexes mid-process the cache will not self-heal; + // restart the process to re-run the migration. Saga finder (with its unique + // index on CorrelationId) makes the same trade-off. + if (Volatile.Read(ref _indexed) != 0) + { + return; + } + + await _indexInitSemaphore.WaitAsync(cancellationToken).ConfigureAwait(false); + try + { + // Re-check under the semaphore so a thread that was waiting while another + // thread completed creation does not issue redundant Drop / Create round-trips. + if (Volatile.Read(ref _indexed) != 0) + { + return; + } + + // Drop the legacy (Locked, Time) index from prior versions. The current + // due-query shape is `Time <= utcNow AND (Locked == false OR LockExpiresAt <= utcNow)` + // sorted by Time. A single compound (Time, Locked, LockExpiresAt) — and even + // a 2-key (Time, LockExpiresAt) — is rejected by MongoDB with code 171 + // ("cannot index parallel arrays") because the C# driver serialises + // DateTimeOffset as a 2-element BSON array [DateTimeTicks, OffsetMinutes] + // and a compound index cannot span two array-typed fields. The migration is + // idempotent over IndexNotFound (code 27) so fresh databases are no-ops. + try + { + await collection.Indexes.DropOneAsync("Locked_1_Time_1", cancellationToken).ConfigureAwait(false); + } + catch (MongoCommandException ex) when (ex.Code == 27) + { + // IndexNotFound — already dropped, or never existed. + } + + try + { + // (Time, Locked) covers the Locked == false branch of the due filter + // with the Time-prefix sort. Time is array-valued (DateTimeOffset), + // Locked is scalar, so this compound has no parallel arrays. + var timeLockedIndexModel = new CreateIndexModel( + Builders.IndexKeys + .Ascending(x => x.Time) + .Ascending(x => x.Locked)); + + var lockedByIndexModel = new CreateIndexModel( + Builders.IndexKeys + .Ascending(x => x.LockedBy) + .Ascending(x => x.Locked)); + + // Single-field index on LockExpiresAt covers the LockExpiresAt <= utcNow + // branch of the OR. A single array-valued field is allowed; only + // compounds spanning two arrays trip MongoDB's parallel-arrays rule. + var lockExpiresAtIndexModel = new CreateIndexModel( + Builders.IndexKeys.Ascending(x => x.LockExpiresAt)); + + await collection.Indexes.CreateManyAsync( + [timeLockedIndexModel, lockedByIndexModel, lockExpiresAtIndexModel], + cancellationToken: cancellationToken + ).ConfigureAwait(false); + } + catch (MongoCommandException ex) when (ex.Code is 85 or 86) + { + // 85 IndexOptionsConflict / 86 IndexKeySpecsConflict — another process + // created the same index concurrently. Treat as success to avoid spurious + // first-insert failures in multi-process deployments. + } + + // Flip the cache flag ONLY after Create succeeds (or benign 85/86 conflict). + // Any other exception (driver, network, auth) leaves _indexed == 0 so the + // next caller retries. + Volatile.Write(ref _indexed, 1); + } + finally + { + _indexInitSemaphore.Release(); + } + } +} diff --git a/src/ServiceConnect.SerializationCompatTests/Corpus/CorpusFactory.cs b/src/ServiceConnect.SerializationCompatTests/Corpus/CorpusFactory.cs new file mode 100644 index 000000000..241a9fe5c --- /dev/null +++ b/src/ServiceConnect.SerializationCompatTests/Corpus/CorpusFactory.cs @@ -0,0 +1,91 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.SerializationCompatTests.Corpus; + +/// +/// Produces populated instances of every subtype defined in +/// . xUnit theory data drives every corpus item through the +/// four round-trip assertions in RoundTripTests. +/// +public static class CorpusFactory +{ + private static readonly Guid TestCorrelationId = Guid.Parse("00000000-0000-0000-0000-000000000042"); + + public static IEnumerable AllCorpusItems() + { + yield return [Primitive()]; + yield return [Collection()]; + yield return [NullableAllNull()]; + yield return [NullablePopulated()]; + yield return [Nested()]; + yield return [Dates()]; + yield return [Enum()]; + yield return [ByteArray()]; + yield return [Polymorphic()]; + yield return [Empty()]; + } + + public static PrimitiveMessage Primitive() => new(TestCorrelationId) + { + Int32 = 42, + Int64 = 9_000_000_000L, + Double = 3.14159, + Decimal = 12345.6789m, + Bool = true, + String = "hello — utf8 ✓", + Guid = Guid.Parse("11111111-2222-3333-4444-555555555555"), + }; + + public static CollectionMessage Collection() => new(TestCorrelationId) + { + IntList = [1, 2, 3, 4, 5], + StringDict = new Dictionary { ["k1"] = "v1", ["k2"] = "v2" }, + StringArray = ["a", "b", "c"], + }; + + public static NullableMessage NullableAllNull() => new(TestCorrelationId) + { + NullableInt = null, + NullableString = null, + NullableDateTime = null, + }; + + public static NullableMessage NullablePopulated() => new(TestCorrelationId) + { + NullableInt = 7, + NullableString = "present", + NullableDateTime = new DateTime(2026, 5, 3, 12, 0, 0, DateTimeKind.Utc), + }; + + public static NestedMessage Nested() => new(TestCorrelationId) + { + Child = new NestedMessage.Inner + { + Name = "child", + Grandchild = new NestedMessage.Inner { Name = "grandchild", Grandchild = null }, + }, + }; + + public static DateTimeMessage Dates() => new(TestCorrelationId) + { + UtcKind = new DateTime(2026, 5, 3, 12, 0, 0, DateTimeKind.Utc), + LocalKind = new DateTime(2026, 5, 3, 12, 0, 0, DateTimeKind.Local), + UnspecifiedKind = new DateTime(2026, 5, 3, 12, 0, 0, DateTimeKind.Unspecified), + Offset = new DateTimeOffset(2026, 5, 3, 12, 0, 0, TimeSpan.FromHours(1)), + Duration = TimeSpan.FromMinutes(90), + }; + + public static EnumMessage Enum() => new(TestCorrelationId) { Value = CorpusEnum.Second }; + + public static ByteArrayMessage ByteArray() => new(TestCorrelationId) + { + Payload = [0x01, 0x02, 0x03, 0xff, 0xfe, 0xfd], + }; + + public static PolymorphicMessage Polymorphic() => new(TestCorrelationId) + { + Pet = new Dog { Name = "Rex", Breed = "Border Collie" }, + }; + + public static EmptyMessage Empty() => new(TestCorrelationId); +} diff --git a/src/ServiceConnect.SerializationCompatTests/Corpus/CorpusTypes.cs b/src/ServiceConnect.SerializationCompatTests/Corpus/CorpusTypes.cs new file mode 100644 index 000000000..17bd0d404 --- /dev/null +++ b/src/ServiceConnect.SerializationCompatTests/Corpus/CorpusTypes.cs @@ -0,0 +1,137 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.SerializationCompatTests.Corpus; + +// ---- Primitives ---- + +public sealed class PrimitiveMessage : Message +{ + public PrimitiveMessage() : base(Guid.Empty) { } + public PrimitiveMessage(Guid correlationId) : base(correlationId) { } + + public int Int32 { get; init; } + public long Int64 { get; init; } + public double Double { get; init; } + public decimal Decimal { get; init; } + public bool Bool { get; init; } + public string String { get; init; } = ""; + public Guid Guid { get; init; } +} + +// ---- Collections ---- + +public sealed class CollectionMessage : Message +{ + public CollectionMessage() : base(Guid.Empty) { } + public CollectionMessage(Guid correlationId) : base(correlationId) { } + + public List IntList { get; init; } = []; + public Dictionary StringDict { get; init; } = []; + public string[] StringArray { get; init; } = []; +} + +// ---- Nullable fields ---- + +public sealed class NullableMessage : Message +{ + public NullableMessage() : base(Guid.Empty) { } + public NullableMessage(Guid correlationId) : base(correlationId) { } + + public int? NullableInt { get; init; } + public string? NullableString { get; init; } + public DateTime? NullableDateTime { get; init; } +} + +// ---- Nested objects ---- + +public sealed class NestedMessage : Message +{ + public NestedMessage() : base(Guid.Empty) { } + public NestedMessage(Guid correlationId) : base(correlationId) { } + + public Inner Child { get; init; } = new(); + + public sealed class Inner + { + public string Name { get; init; } = ""; + public Inner? Grandchild { get; init; } + } +} + +// ---- Date / time variants ---- + +public sealed class DateTimeMessage : Message +{ + public DateTimeMessage() : base(Guid.Empty) { } + public DateTimeMessage(Guid correlationId) : base(correlationId) { } + + public DateTime UtcKind { get; init; } + public DateTime LocalKind { get; init; } + public DateTime UnspecifiedKind { get; init; } + public DateTimeOffset Offset { get; init; } + public TimeSpan Duration { get; init; } +} + +// ---- Enums ---- + +public enum CorpusEnum +{ + First = 0, + Second = 1, + Third = 2, +} + +public sealed class EnumMessage : Message +{ + public EnumMessage() : base(Guid.Empty) { } + public EnumMessage(Guid correlationId) : base(correlationId) { } + + public CorpusEnum Value { get; init; } +} + +// ---- byte[] payload ---- + +public sealed class ByteArrayMessage : Message +{ + public ByteArrayMessage() : base(Guid.Empty) { } + public ByteArrayMessage(Guid correlationId) : base(correlationId) { } + + public byte[] Payload { get; init; } = []; +} + +// ---- Concrete derived type as its own static type (no $type metadata) ---- +// +// Pet is declared as Dog, the concrete derived type. Both serialisers therefore +// see Dog's full property set on serialise and reconstruct Dog on deserialise. +// This is NOT a test of "abstract base + runtime-polymorphic derived" — that +// case (declared type Animal, runtime type Dog) is intentionally omitted because +// neither STJ default nor Newtonsoft with TypeNameHandling.None would carry +// Dog's `Breed` property across the wire (no $type discriminator), and STJ +// further refuses to instantiate the abstract Animal on deserialise. If +// abstract-base polymorphism ever becomes a supported scenario, add a separate +// corpus item that asserts the chosen $type-discrimination strategy. +public abstract class Animal +{ + public string Name { get; init; } = ""; +} + +public sealed class Dog : Animal +{ + public string Breed { get; init; } = ""; +} + +public sealed class PolymorphicMessage : Message +{ + public PolymorphicMessage() : base(Guid.Empty) { } + public PolymorphicMessage(Guid correlationId) : base(correlationId) { } + + public Dog Pet { get; init; } = new(); +} + +// ---- Empty message (CorrelationId only) ---- + +public sealed class EmptyMessage : Message +{ + public EmptyMessage() : base(Guid.Empty) { } + public EmptyMessage(Guid correlationId) : base(correlationId) { } +} diff --git a/src/ServiceConnect.SerializationCompatTests/Fixtures/NewtonsoftReferenceSerializer.cs b/src/ServiceConnect.SerializationCompatTests/Fixtures/NewtonsoftReferenceSerializer.cs new file mode 100644 index 000000000..82f9a7c2e --- /dev/null +++ b/src/ServiceConnect.SerializationCompatTests/Fixtures/NewtonsoftReferenceSerializer.cs @@ -0,0 +1,65 @@ +using System.Text; +using Newtonsoft.Json; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.SerializationCompatTests.Fixtures; + +/// +/// Reference Newtonsoft wire-format serializer — Newtonsoft.Json with the exact settings +/// the production NewtonsoftJsonMessageSerializer uses. Decoupled from +/// by design: the production interface exposes an +/// IBufferWriter-based API, and this fixture represents the Newtonsoft wire format +/// independently so the compat tests remain valid regardless of interface changes. +/// +internal static class NewtonsoftReferenceSerializer +{ + private static readonly JsonSerializerSettings Settings = new() + { + NullValueHandling = NullValueHandling.Include, + DefaultValueHandling = DefaultValueHandling.Include, + ReferenceLoopHandling = ReferenceLoopHandling.Error, + DateFormatHandling = DateFormatHandling.IsoDateFormat, + DateTimeZoneHandling = DateTimeZoneHandling.RoundtripKind, + Formatting = Formatting.None, + TypeNameHandling = TypeNameHandling.None, + }; + + // Shared static instance is safe with these defaults: no custom converters and no + // custom contract resolver, so the only mutable state lives in DefaultContractResolver's + // ConcurrentDictionary cache. If a future test adds custom converters or a stateful + // resolver, switch this to per-call construction (negligible cost in a test fixture). + private static readonly JsonSerializer Serializer = JsonSerializer.Create(Settings); + + // StreamWriter(stream, Encoding.UTF8) emits a UTF-8 BOM (EF BB BF) on .NET 10+. + // STJ and Newtonsoft's JToken.Parse both reject a BOM prefix. Use an explicit + // no-BOM encoding so the wire bytes are plain UTF-8, matching what STJ produces. + private static readonly Encoding Utf8NoBom = new UTF8Encoding(encoderShouldEmitUTF8Identifier: false); + + public static byte[] Serialize(T message) where T : Message + { + if (message is null) + { + throw new ArgumentNullException(nameof(message)); + } + + using var ms = new MemoryStream(); + using (var sw = new StreamWriter(ms, Utf8NoBom, bufferSize: 1024, leaveOpen: true)) + using (var jw = new JsonTextWriter(sw)) + { + Serializer.Serialize(jw, message); + } + return ms.ToArray(); + } + + public static object Deserialize(byte[] data, Type type) + { + using var ms = new MemoryStream(data, writable: false); + using var sr = new StreamReader(ms, Encoding.UTF8, detectEncodingFromByteOrderMarks: false, bufferSize: 1024, leaveOpen: false); + using var jr = new JsonTextReader(sr); + return Serializer.Deserialize(jr, type) + ?? throw new InvalidOperationException($"Newtonsoft reference deserialised to null for {type.Name}"); + } + + public static T Deserialize(byte[] data) where T : Message + => (T)Deserialize(data, typeof(T)); +} diff --git a/src/ServiceConnect.SerializationCompatTests/PathologicalInputTests.cs b/src/ServiceConnect.SerializationCompatTests/PathologicalInputTests.cs new file mode 100644 index 000000000..5d66b16ab Binary files /dev/null and b/src/ServiceConnect.SerializationCompatTests/PathologicalInputTests.cs differ diff --git a/src/ServiceConnect.SerializationCompatTests/RoundTripTests.cs b/src/ServiceConnect.SerializationCompatTests/RoundTripTests.cs new file mode 100644 index 000000000..57ceac819 --- /dev/null +++ b/src/ServiceConnect.SerializationCompatTests/RoundTripTests.cs @@ -0,0 +1,164 @@ +using System.Buffers; +using System.Text.Json; +using Newtonsoft.Json.Linq; +using ServiceConnect.Interfaces; +using ServiceConnect.SerializationCompatTests.Corpus; +using ServiceConnect.SerializationCompatTests.Fixtures; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.SerializationCompatTests; + +/// +/// Cross-impl wire-compat assertions. Each corpus item is round-tripped through four +/// channels: +/// 1. STJ serialize → STJ deserialize: structural equality (control). +/// 2. Newtonsoft serialize → STJ deserialize: Newtonsoft producer to STJ consumer. +/// 3. STJ serialize → Newtonsoft deserialize: STJ producer to Newtonsoft consumer. +/// 4. Wire-byte JSON-DOM equivalence: STJ output and Newtonsoft output parse to the +/// same JSON document. (Bytes may differ in escape sequences; meaning is identical.) +/// +public class RoundTripTests +{ + private static readonly SystemTextJsonMessageSerializer Stj = new(); + + // Adapter: the production IMessageSerializer interface uses IBufferWriter, not + // byte[]. The compat tests need byte[] for JSON-DOM equivalence assertions, so we + // route through ArrayBufferWriter here. + private static byte[] StjSerialize(Message message) + { + var bw = new ArrayBufferWriter(); + Stj.Serialize(message, bw); + return bw.WrittenSpan.ToArray(); + } + + [Theory] + [MemberData(nameof(CorpusFactory.AllCorpusItems), MemberType = typeof(CorpusFactory))] + public void Stj_ToStj_RoundTrip_StructurallyEqual(Message message) + { + var bytes = StjSerialize(message); + var deserialised = Stj.Deserialize(bytes, message.GetType()); + AssertStructurallyEqual(message, deserialised); + } + + [Theory] + [MemberData(nameof(CorpusFactory.AllCorpusItems), MemberType = typeof(CorpusFactory))] + public void Newtonsoft_ToStj_DeserialiseSucceeds(Message message) + { + var bytes = NewtonsoftReferenceSerializer.Serialize(message); + var deserialised = Stj.Deserialize(bytes, message.GetType()); + AssertStructurallyEqual(message, deserialised); + } + + [Theory] + [MemberData(nameof(CorpusFactory.AllCorpusItems), MemberType = typeof(CorpusFactory))] + public void Stj_ToNewtonsoft_DeserialiseSucceeds(Message message) + { + var bytes = StjSerialize(message); + var deserialised = NewtonsoftReferenceSerializer.Deserialize(bytes, message.GetType()); + AssertStructurallyEqual(message, deserialised); + } + + [Theory] + [MemberData(nameof(CorpusFactory.AllCorpusItems), MemberType = typeof(CorpusFactory))] + public void Stj_And_Newtonsoft_Outputs_AreJsonEquivalent(Message message) + { + var stjBytes = StjSerialize(message); + var newtonsoftBytes = NewtonsoftReferenceSerializer.Serialize(message); + + // Bytes may differ (Unicode escape choices, whitespace) but the JSON DOMs must match. + var stjDocument = JsonDocument.Parse(stjBytes); + var newtonsoftDocument = JsonDocument.Parse(newtonsoftBytes); + + Assert.True(JsonElementsEqual(stjDocument.RootElement, newtonsoftDocument.RootElement), + $"STJ output and Newtonsoft output are not JSON-DOM equivalent.\n" + + $"STJ: {System.Text.Encoding.UTF8.GetString(stjBytes)}\n" + + $"Newtonsoft: {System.Text.Encoding.UTF8.GetString(newtonsoftBytes)}"); + } + + /// + /// Structural equality asserted via Newtonsoft's : + /// both ends of the round-trip serialise to the same DOM via Newtonsoft. This intentionally + /// uses the reference impl (Newtonsoft) on both sides so the assertion is independent of STJ — + /// asserting "STJ produced the right value" rather than "STJ deserialise happens to invert STJ + /// serialise." + /// + private static void AssertStructurallyEqual(object expected, object actual) + { + var expectedJson = JToken.Parse(System.Text.Encoding.UTF8.GetString(NewtonsoftReferenceSerializer.Serialize((Message)expected))); + var actualJson = JToken.Parse(System.Text.Encoding.UTF8.GetString(NewtonsoftReferenceSerializer.Serialize((Message)actual))); + Assert.True(JToken.DeepEquals(expectedJson, actualJson), + $"Expected:\n{expectedJson}\nActual:\n{actualJson}"); + } + + private static bool JsonElementsEqual(JsonElement a, JsonElement b) + { + if (a.ValueKind != b.ValueKind) + { + return false; + } + + switch (a.ValueKind) + { + case JsonValueKind.Object: + var aProps = a.EnumerateObject().OrderBy(p => p.Name, StringComparer.Ordinal).ToList(); + var bProps = b.EnumerateObject().OrderBy(p => p.Name, StringComparer.Ordinal).ToList(); + if (aProps.Count != bProps.Count) + { + return false; + } + + for (var i = 0; i < aProps.Count; i++) + { + if (aProps[i].Name != bProps[i].Name) + { + return false; + } + + if (!JsonElementsEqual(aProps[i].Value, bProps[i].Value)) + { + return false; + } + } + return true; + + case JsonValueKind.Array: + var aItems = a.EnumerateArray().ToList(); + var bItems = b.EnumerateArray().ToList(); + if (aItems.Count != bItems.Count) + { + return false; + } + + for (var i = 0; i < aItems.Count; i++) + { + if (!JsonElementsEqual(aItems[i], bItems[i])) + { + return false; + } + } + return true; + + case JsonValueKind.String: + return a.GetString() == b.GetString(); + + case JsonValueKind.Number: + // Compare via string form; both impls emit canonical .NET numeric formatting and + // any divergence (e.g. trailing zeros on decimals) is itself a wire-compat finding. + return a.GetRawText() == b.GetRawText(); + + case JsonValueKind.True: + case JsonValueKind.False: + case JsonValueKind.Null: + // Both elements share the kind (top-of-method ValueKind equality check). + // True/False/Null are valueless; equal kind = equal element. + return true; + + // Undefined falls through to GetRawText comparison: it indicates a default- + // constructed or invalid element that JsonDocument.Parse will not produce in + // practice, but the raw-text comparison is the safer fallback. + default: + return a.GetRawText() == b.GetRawText(); + } + } +} diff --git a/src/ServiceConnect.SerializationCompatTests/ServiceConnect.SerializationCompatTests.csproj b/src/ServiceConnect.SerializationCompatTests/ServiceConnect.SerializationCompatTests.csproj new file mode 100644 index 000000000..af2de1c5d --- /dev/null +++ b/src/ServiceConnect.SerializationCompatTests/ServiceConnect.SerializationCompatTests.csproj @@ -0,0 +1,38 @@ + + + + net10.0 + enable + enable + false + + false + + + + + + + + + + + runtime; build; native; contentfiles; analyzers; buildtransitive + all + + + + + + + + + diff --git a/src/ServiceConnect.Telemetry/ConsumeEventArgs.cs b/src/ServiceConnect.Telemetry/ConsumeEventArgs.cs deleted file mode 100644 index c921315b4..000000000 --- a/src/ServiceConnect.Telemetry/ConsumeEventArgs.cs +++ /dev/null @@ -1,16 +0,0 @@ -namespace ServiceConnect.Telemetry; - -public class ConsumeEventArgs -{ - public byte[] Message { get; init; } = Array.Empty(); - - public string Type { get; init; } = string.Empty; - - public IDictionary Headers - { - get => _headers; - init => _headers = value is not null ? value : new Dictionary(); - } - - private IDictionary _headers = new Dictionary(); -} \ No newline at end of file diff --git a/src/ServiceConnect.Telemetry/IMessagingSystemAttributes.cs b/src/ServiceConnect.Telemetry/IMessagingSystemAttributes.cs new file mode 100644 index 000000000..65d5df6b7 --- /dev/null +++ b/src/ServiceConnect.Telemetry/IMessagingSystemAttributes.cs @@ -0,0 +1,37 @@ +namespace ServiceConnect.Telemetry; + +/// +/// Supplies semantic-convention values that identify the messaging system and transport protocol. +/// +public interface IMessagingSystemAttributes +{ + /// + /// Gets the OpenTelemetry messaging-system identifier. + /// + string MessagingSystem { get; } + + /// + /// Gets the network protocol name used by the messaging system. + /// + string ProtocolName { get; } + + /// + /// Gets the broker host name or IP address. Used to populate the server.address + /// OTel semantic-convention attribute on producer and consumer spans. + /// + /// + /// Default implementation returns ; implementations that have + /// access to transport configuration should return the first configured host. + /// + string ServerAddress => string.Empty; + + /// + /// Gets the broker TCP port. Used to populate the server.port OTel + /// semantic-convention attribute on producer and consumer spans. + /// + /// + /// Default implementation returns 0; implementations that have access to transport + /// configuration should return the configured port. + /// + int ServerPort => 0; +} diff --git a/src/ServiceConnect.Telemetry/MessagingAttributes.cs b/src/ServiceConnect.Telemetry/MessagingAttributes.cs index 71b7fa017..26990caa1 100644 --- a/src/ServiceConnect.Telemetry/MessagingAttributes.cs +++ b/src/ServiceConnect.Telemetry/MessagingAttributes.cs @@ -1,17 +1,84 @@ -namespace ServiceConnect.Telemetry; +namespace ServiceConnect.Telemetry; +/// +/// OpenTelemetry semantic-convention attribute names used by ServiceConnect spans. +/// +/// +/// Constants follow the OTel messaging spec at +/// . +/// The deprecated messaging.operation attribute is not emitted; callers should read +/// messaging.operation.type and messaging.operation.name instead. +/// public static class MessagingAttributes { - // These constants are defined in the OpenTelemetry specification: - // https://opentelemetry.io/docs/specs/semconv/messaging/messaging-spans/#messaging-attributes + /// + /// Attribute name for the logical message identifier. + /// + /// + /// HIGH CARDINALITY. Permitted on spans (where backends cap retention by time) but + /// MUST NOT be added to a passed to a + /// metric instrument. A per-message GUID dimension on a Counter or Histogram fans + /// out to unbounded series and will exhaust a Prometheus / VictoriaMetrics backend's + /// cardinality budget. + /// public const string MessageId = "messaging.message.id"; + /// + /// Attribute name for the conversation or correlation identifier. + /// + /// + /// HIGH CARDINALITY. Same constraint as : span-only; + /// never a metric tag. + /// public const string MessageConversationId = "messaging.message.conversation_id"; - public const string MessagingOperation = "messaging.operation"; + + /// + /// OTel-defined operation type. One of "publish", "receive", "process". + /// + public const string MessagingOperationType = "messaging.operation.type"; + + /// + /// Implementation-specific operation name (e.g. "publish", "send", "request", "process"). + /// + public const string MessagingOperationName = "messaging.operation.name"; + + /// + /// Attribute name for the messaging system identifier. + /// public const string MessagingSystem = "messaging.system"; + + /// + /// Attribute name for the destination queue, topic, or exchange name. + /// public const string MessagingDestination = "messaging.destination.name"; + + /// + /// Attribute name used when the destination is anonymous or implicit. + /// public const string MessagingDestinationAnonymous = "messaging.destination.anonymous"; + + /// + /// Attribute name for the RabbitMQ routing key. + /// public const string MessagingDestinationRoutingKey = "messaging.rabbitmq.destination.routing_key"; + + /// + /// Attribute name for the serialized body size in bytes. + /// public const string MessagingBodySize = "messaging.message.body.size"; + + /// + /// Attribute name for the network protocol name. + /// public const string ProtocolName = "network.protocol.name"; -} \ No newline at end of file + + /// + /// Attribute name for the broker host name or IP address. + /// + public const string ServerAddress = "server.address"; + + /// + /// Attribute name for the broker TCP port. + /// + public const string ServerPort = "server.port"; +} diff --git a/src/ServiceConnect.Telemetry/OutgoingEventArgs.cs b/src/ServiceConnect.Telemetry/OutgoingEventArgs.cs deleted file mode 100644 index 72bc9831c..000000000 --- a/src/ServiceConnect.Telemetry/OutgoingEventArgs.cs +++ /dev/null @@ -1,16 +0,0 @@ -using ServiceConnect.Interfaces; - -namespace ServiceConnect.Telemetry; - -public class OutgoingEventArgs -{ - public Message? Message { get; init; } - - public Dictionary Headers - { - get => _headers; - set => _headers = value is not null ? value : new(); - } - - private Dictionary _headers = new(); -} \ No newline at end of file diff --git a/src/ServiceConnect.Telemetry/Properties/AssemblyInfo.cs b/src/ServiceConnect.Telemetry/Properties/AssemblyInfo.cs deleted file mode 100644 index b10fa1fe6..000000000 --- a/src/ServiceConnect.Telemetry/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,3 +0,0 @@ -using System.Runtime.CompilerServices; - -[assembly: InternalsVisibleTo("ServiceConnect.UnitTests")] \ No newline at end of file diff --git a/src/ServiceConnect.Telemetry/PublishEventArgs.cs b/src/ServiceConnect.Telemetry/PublishEventArgs.cs deleted file mode 100644 index 237ef558f..000000000 --- a/src/ServiceConnect.Telemetry/PublishEventArgs.cs +++ /dev/null @@ -1,6 +0,0 @@ -namespace ServiceConnect.Telemetry; - -public class PublishEventArgs : OutgoingEventArgs -{ - public string RoutingKey { get; init; } = string.Empty; -} \ No newline at end of file diff --git a/src/ServiceConnect.Telemetry/RabbitMqMessagingSystemAttributes.cs b/src/ServiceConnect.Telemetry/RabbitMqMessagingSystemAttributes.cs new file mode 100644 index 000000000..09cc2513f --- /dev/null +++ b/src/ServiceConnect.Telemetry/RabbitMqMessagingSystemAttributes.cs @@ -0,0 +1,79 @@ +using ServiceConnect.Interfaces.Configuration; + +namespace ServiceConnect.Telemetry; + +/// +/// RabbitMQ-specific semantic-convention values used by telemetry spans. +/// +public sealed class RabbitMqMessagingSystemAttributes : IMessagingSystemAttributes +{ + private readonly string _serverAddress; + private readonly int _serverPort; + + /// + /// Initialises an instance sourcing the broker endpoint from . + /// + /// + /// Transport configuration from which server.address and server.port are derived. + /// + public RabbitMqMessagingSystemAttributes(ITransportConfiguration transport) + { + ArgumentNullException.ThrowIfNull(transport); + + // Host may be a comma-separated cluster list (e.g. "rabbit1,rabbit2"). The transport + // splits on ',' only; mirror that here so server.address reflects what the connection + // factory will actually dial. A semicolon in Host is part of the literal hostname. + var host = transport.Host ?? string.Empty; + var idx = host.IndexOf(','); + var first = idx >= 0 ? host[..idx] : host; + _serverAddress = first.Trim(); + + // Port lives in ClientSettings because ITransportConfiguration does not expose it + // directly. Fall back to 0 when unconfigured (the factory defaults to the AMQP + // well-known port; 0 is the "not set" sentinel for the server.port span attribute). + _serverPort = transport.ClientSettings.TryGetValue("Port", out var portVal) + ? ConvertPort(portVal) + : 0; + } + + // Parameterless constructor preserved for tests that don't care about broker endpoints. + // Returns empty-string / 0 defaults from the interface DIM. + + /// + /// Initialises an instance with no broker endpoint information. + /// + /// + /// Provided for test scenarios that construct attributes without a transport configuration. + /// server.address and server.port will be empty / zero. + /// + public RabbitMqMessagingSystemAttributes() + { + _serverAddress = string.Empty; + _serverPort = 0; + } + + /// + public string MessagingSystem => "rabbitmq"; + + /// + public string ProtocolName => "amqp"; + + /// + public string ServerAddress => _serverAddress; + + /// + public int ServerPort => _serverPort; + + private static int ConvertPort(object? value) + { + try + { + return Convert.ToInt32(value, System.Globalization.CultureInfo.InvariantCulture); + } + catch + { + // Ignore malformed port settings; 0 signals "not available" to the span builder. + return 0; + } + } +} diff --git a/src/ServiceConnect.Telemetry/SendEventArgs.cs b/src/ServiceConnect.Telemetry/SendEventArgs.cs deleted file mode 100644 index e438db9fa..000000000 --- a/src/ServiceConnect.Telemetry/SendEventArgs.cs +++ /dev/null @@ -1,15 +0,0 @@ -namespace ServiceConnect.Telemetry; - -public class SendEventArgs : OutgoingEventArgs -{ - public string EndPoint { get; init; } = string.Empty; - - public IList EndPoints - { - get => EndPoint - .Remove(0) - .Remove(EndPoint.Length - 1) - .Split(','); - init => EndPoint = "[" + string.Join(',', value) + "]"; - } -} \ No newline at end of file diff --git a/src/ServiceConnect.Telemetry/ServiceConnect.Telemetry.csproj b/src/ServiceConnect.Telemetry/ServiceConnect.Telemetry.csproj index 3a3c2cf42..ae25069bd 100644 --- a/src/ServiceConnect.Telemetry/ServiceConnect.Telemetry.csproj +++ b/src/ServiceConnect.Telemetry/ServiceConnect.Telemetry.csproj @@ -1,13 +1,28 @@ - net6.0 enable enable + ServiceConnect.Telemetry + ServiceConnect.Telemetry + ServiceConnect.Telemetry + OpenTelemetry-compatible ActivitySource instrumentation for ServiceConnect. Emits publish, send and consume spans tagged with the OTel messaging semantic conventions, and injects/extracts W3C traceparent headers so traces propagate end-to-end across the broker. + ServiceConnect;Telemetry;OpenTelemetry;Tracing;MessageBus;Messaging;Message;Bus;Service + + + + + + + + + + <_Parameter1>ServiceConnect.UnitTests + diff --git a/src/ServiceConnect.Telemetry/ServiceConnectActivitySource.cs b/src/ServiceConnect.Telemetry/ServiceConnectActivitySource.cs index a5659c977..3be833e66 100644 --- a/src/ServiceConnect.Telemetry/ServiceConnectActivitySource.cs +++ b/src/ServiceConnect.Telemetry/ServiceConnectActivitySource.cs @@ -1,240 +1,582 @@ -using System.Diagnostics; -using System.Text; +using System.Diagnostics; +using ServiceConnect.Interfaces; namespace ServiceConnect.Telemetry; +// Telemetry uses the ServiceConnect.Interfaces event-args types. + +/// +/// Creates publish, send, and consume activities for ServiceConnect message operations. +/// public static class ServiceConnectActivitySource { - public static ServiceConnectInstrumentationOptions Options { get; set; } = new(); - internal static readonly Version? Version = typeof(ServiceConnectActivitySource).Assembly.GetName().Version; - internal static readonly string ActivitySourceName = typeof(ServiceConnectActivitySource).Assembly.GetName().Name + ".Bus" ?? "ServiceConnect.Bus"; - - public static readonly string PublishActivitySourceName = ActivitySourceName + ".Publish"; - public static readonly string ConsumeActivitySourceName = ActivitySourceName + ".Consume"; - public static readonly string SendActivitySourceName = ActivitySourceName + ".Send"; - - private static readonly ActivitySource _publishActivitySource = new(PublishActivitySourceName, Version?.ToString() ?? "0.0.0"); - private static readonly ActivitySource _consumeActivitySource = new(ConsumeActivitySourceName, Version?.ToString() ?? "0.0.0"); - private static readonly ActivitySource _sendActivitySource = new(SendActivitySourceName, Version?.ToString() ?? "0.0.0"); - public static Activity? Publish(PublishEventArgs eventArgs, ActivityContext linkedContext = default) + /// + /// Gets the activity-source name used for all publish, send, and consume spans. + /// Prefer + /// over registering this string directly so a future rename cannot silently + /// disable telemetry for callers that hard-coded the literal. + /// + public static readonly string ActivitySourceName = (typeof(ServiceConnectActivitySource).Assembly.GetName().Name ?? "ServiceConnect") + ".Bus"; + + private static readonly ActivitySource _activitySource = new(ActivitySourceName, Version?.ToString() ?? "0.0.0"); + + /// + /// Disposes the underlying . Call only when unloading + /// the assembly in a collectible AssemblyLoadContext; for normal long-running + /// processes the source lives for process lifetime and disposal is unnecessary. + /// + internal static void Shutdown() => _activitySource.Dispose(); + + /// + /// Starts a publish-side activity. Returns null when no listeners are + /// registered for . + /// + public static Activity? Publish( + PublishEventArgs eventArgs, + ServiceConnectInstrumentationOptions options, + IMessagingSystemAttributes attributes, + ActivityContext parentContext = default) { - if (!_publishActivitySource.HasListeners()) - { - return null; - } - - Activity? activity = _publishActivitySource.StartActivity(PublishActivitySourceName, ActivityKind.Producer, linkedContext); + ArgumentNullException.ThrowIfNull(eventArgs); + ArgumentNullException.ThrowIfNull(options); + ArgumentNullException.ThrowIfNull(attributes); + + Activity? activity = StartActivityWithParent( + _activitySource, + ActivitySourceName, + ActivityKind.Producer, + options.EnablePublishTelemetry, + attributes, + "publish", + parentContext); if (activity is null) { + // Single inject. No activity → propagate ambient context for downstream linking. + TraceContextPropagation.InjectTraceContext(Activity.Current, eventArgs.Headers); return null; } - activity - .SetTag(MessagingAttributes.MessagingSystem, "rabbitmq") - .SetTag(MessagingAttributes.ProtocolName, "amqp") - .SetTag(MessagingAttributes.MessagingOperation, "publish") - .SetTag(MessagingAttributes.MessageConversationId, eventArgs.Message?.CorrelationId.ToString()); - - if (!string.IsNullOrWhiteSpace(eventArgs.RoutingKey)) - { - activity.DisplayName = eventArgs.RoutingKey + " publish"; - activity - .SetTag(MessagingAttributes.MessagingDestination, eventArgs.RoutingKey) - .SetTag(MessagingAttributes.MessagingDestinationRoutingKey, eventArgs.RoutingKey); - } - else - { - activity.DisplayName = "anonymous publish"; - activity.SetTag(MessagingAttributes.MessagingDestinationAnonymous, "true"); - } - - if (eventArgs.Headers.TryGetValue("MessageId", out string? messageId)) + try { - activity.SetTag(MessagingAttributes.MessageId, messageId); - } + // Single inject. Activity non-null → propagate the new span's context. + TraceContextPropagation.InjectTraceContext(activity, eventArgs.Headers); - if (eventArgs.Message is not null) - { - try + if (activity.IsAllDataRequested) { - Options.EnrichWithMessage?.Invoke(activity, eventArgs.Message); + if (eventArgs.Message?.CorrelationId is { } cid && cid != Guid.Empty) + { + activity.SetTag(MessagingAttributes.MessageConversationId, + Truncate(cid.ToString(), options.MaxTagValueLength)); + } + + if (!string.IsNullOrWhiteSpace(eventArgs.Exchange)) + { + // Truncate the exchange first, then append the suffix. Concatenating first + // and truncating second would chop off the " publish" suffix when the + // exchange is close to MaxTagValueLength — losing the operation signal in + // the span display. + var truncatedExchange = Truncate(eventArgs.Exchange, options.MaxTagValueLength); + activity.DisplayName = truncatedExchange + " publish"; + activity.SetTag(MessagingAttributes.MessagingDestination, truncatedExchange); + } + else + { + activity.DisplayName = "anonymous publish"; + // OTel messaging semconv defines messaging.destination.anonymous as a + // boolean attribute; emitting the string "true" mismatches downstream + // schema-validating backends (Honeycomb, Tempo, Jaeger v2). + activity.SetTag(MessagingAttributes.MessagingDestinationAnonymous, true); + } + + if (!string.IsNullOrWhiteSpace(eventArgs.RoutingKey)) + { + activity.SetTag(MessagingAttributes.MessagingDestinationRoutingKey, + Truncate(eventArgs.RoutingKey, options.MaxTagValueLength)); + } + + if (eventArgs.Headers.TryGetValue(HeaderKeys.MessageId, out string? messageId)) + { + activity.SetTag(MessagingAttributes.MessageId, + Truncate(messageId, options.MaxTagValueLength)); + } } - catch (Exception ex) - { - activity.SetTag("enrichment.exception", ex.Message); - } - } - return activity; + TelemetryEnrichment.TryEnrich(activity, eventArgs.Message, options); + + return activity; + } + catch + { + activity.Dispose(); + throw; + } } - public static Activity? Consume(ConsumeEventArgs eventArgs) + /// + /// Starts a consume-side activity, extracting the W3C traceparent/tracestate + /// from .Headers so the resulting span is linked to + /// the publishing activity. Returns null when no listeners are registered + /// for . + /// + public static Activity? Consume( + ConsumeEventArgs eventArgs, + ServiceConnectInstrumentationOptions options, + IMessagingSystemAttributes attributes) { - if (!_consumeActivitySource.HasListeners()) + ArgumentNullException.ThrowIfNull(eventArgs); + ArgumentNullException.ThrowIfNull(options); + ArgumentNullException.ThrowIfNull(attributes); + + DistributedContextPropagator.Current.ExtractTraceIdAndState(eventArgs.Headers, TraceContextPropagation.ExtractTraceIdAndState, out string? traceId, out string? traceState); + bool malformedTraceparent = false; + if (!ActivityContext.TryParse(traceId, traceState, out ActivityContext parentContext)) { - return null; + // Distinguish "no traceparent header at all" from "traceparent header present + // but unparseable". DistributedContextPropagator's W3C implementation validates + // the traceparent shape and returns null when the on-wire value is malformed, + // collapsing both cases into traceId == null at this layer. Probe the raw + // headers directly to recover the distinction: + // - header absent : fall through to ambient Activity.Current or the AsyncLocal + // fallback (normal cross-process linking). + // - header present but malformed : force a fresh trace root so the span isn't + // incorrectly parented onto whatever the hosting environment happens to have + // as Activity.Current (e.g. an ASP.NET request or host-worker activity + // wrapping the consume loop). Stamp a diagnostic tag so operators can spot + // poisoned producers in search. + malformedTraceparent = traceId is not null || TraceContextPropagation.HasTraceparentHeader(eventArgs.Headers); + parentContext = default; } - DistributedContextPropagator.Current.ExtractTraceIdAndState(eventArgs.Headers, ExtractTraceIdAndState, out string? traceId, out string? traceState); - ActivityContext.TryParse(traceId, traceState, out ActivityContext parentContext); - - Activity? activity = _consumeActivitySource.StartActivity(ConsumeActivitySourceName, ActivityKind.Consumer, parentContext); + Activity? activity = StartActivityWithParent( + _activitySource, + ActivitySourceName, + ActivityKind.Consumer, + options.EnableConsumeTelemetry, + attributes, + "process", + parentContext, + forceFreshRoot: malformedTraceparent); if (activity is null) { return null; } - activity - .SetTag(MessagingAttributes.MessagingSystem, "rabbitmq") - .SetTag(MessagingAttributes.ProtocolName, "amqp") - .SetTag(MessagingAttributes.MessagingOperation, "receive"); - - Dictionary readableHeaders = new(); - foreach (var kvp in eventArgs.Headers.ToList()) + // Telemetry enrichment is best-effort: a malformed header (HeaderDecoder throw on a + // pathologically nested AMQP table, an unexpected runtime tag failure) must NOT + // block the consume pipeline. Telemetry runs BEFORE the handler dispatch, so a + // rethrow here propagates out of the middleware before next() is invoked and the + // handler never runs — a single poison header would crash every consumer pulling + // it. Capture the failure into the span via an enrichment.exception tag and + // return the started activity so the dispatch path proceeds. + try { - if (kvp.Value.GetType() == typeof(byte[])) + if (activity.IsAllDataRequested) { - readableHeaders[kvp.Key] = Encoding.UTF8.GetString((byte[])kvp.Value); - continue; + // Targeted header lookups — decode only the headers actually used here + // rather than allocating a full decode dictionary for all 15-20 headers. + string? destinationAddress = eventArgs.Headers.TryGetValue(HeaderKeys.DestinationAddress, out var daVal) + ? HeaderDecoder.Decode(daVal) : null; + string? messageId = eventArgs.Headers.TryGetValue(HeaderKeys.MessageId, out var miVal) + ? HeaderDecoder.Decode(miVal) : null; + string? correlationId = eventArgs.Headers.TryGetValue(HeaderKeys.CorrelationId, out var ciVal) + ? HeaderDecoder.Decode(ciVal) : null; + + // Truncate the destination first, then append the suffix. Concatenating first + // and truncating second would chop off the " process" suffix when the + // destination is at MaxTagValueLength — losing the operation signal in the + // span display. + var truncatedDest = Truncate(string.IsNullOrWhiteSpace(destinationAddress) ? "anonymous" : destinationAddress, options.MaxTagValueLength); + activity.DisplayName = truncatedDest + " process"; + + if (messageId is not null) + { + activity.SetTag(MessagingAttributes.MessageId, + Truncate(messageId, options.MaxTagValueLength)); + } + + if (correlationId is not null) + { + activity.SetTag(MessagingAttributes.MessageConversationId, + Truncate(correlationId, options.MaxTagValueLength)); + } + + if (!string.IsNullOrEmpty(destinationAddress)) + { + activity.SetTag(MessagingAttributes.MessagingDestination, + Truncate(destinationAddress, options.MaxTagValueLength)); + } + else + { + activity.SetTag(MessagingAttributes.MessagingDestinationAnonymous, true); + } + + // BodySize is the on-wire byte count, populated by the consume middleware even + // when eventArgs.Message is the empty-sentinel array (no enricher configured — + // bytes were not materialised to save the per-delivery allocation). Fall back to + // eventArgs.Message.Length for direct callers of Consume() that pre-date BodySize + // and only set Message; without the fallback, those callers would suddenly emit + // body-size=0 on every span. + var bodySize = eventArgs.BodySize > 0 + ? eventArgs.BodySize + : (eventArgs.Message?.Length ?? 0); + activity.SetTag(MessagingAttributes.MessagingBodySize, bodySize); } - readableHeaders[kvp.Key] = kvp.Value.ToString(); - } - - readableHeaders.TryGetValue("DestinationAddress", out string? destinationAddress); - activity.DisplayName = (string.IsNullOrWhiteSpace(destinationAddress) ? "anonymous" : destinationAddress) + " receive"; - - if (readableHeaders.TryGetValue("MessageId", out string? messageId)) - { - activity.SetTag(MessagingAttributes.MessageId, messageId); - } + if (eventArgs.Message is { Length: > 0 }) + { + TelemetryEnrichment.TryEnrich(activity, eventArgs.Message, options); + } - if (!string.IsNullOrEmpty(destinationAddress)) - { - activity.SetTag(MessagingAttributes.MessagingDestination, destinationAddress); + return activity; } - else + catch (OperationCanceledException) { - activity.SetTag(MessagingAttributes.MessagingDestinationAnonymous, "true"); + activity.Dispose(); + throw; } - - if (eventArgs.Message is not null) + catch (Exception ex) { - activity.SetTag(MessagingAttributes.MessagingBodySize, eventArgs.Message.Length); + // Don't rethrow — see the block-leading comment. Record the failure as a + // telemetry-attribution tag (type name only; messages may carry caller- + // controlled payloads) and return the partial activity. Wrap the SetTag + // in its own try/catch because a pathological ActivityListener registered + // against this source could itself throw during the tag callback — without + // the inner guard, a malformed-header poison delivery would still kill the + // consume path via the listener rather than the original enrichment fault. try { - Options.EnrichWithMessageBytes?.Invoke(activity, eventArgs.Message); + activity.SetTag("enrichment.exception", ex.GetType().FullName); } - catch (Exception ex) + catch { - activity.SetTag("enrichment.exception", ex.Message); + // Telemetry is best-effort. Last-resort: leave the activity unmodified. } + return activity; } - - return activity; } - public static Activity? Send(SendEventArgs eventArgs, ActivityContext linkedContext = default) + /// + /// Starts a send-side activity. Returns null when no listeners are + /// registered for . + /// + public static Activity? Send( + SendEventArgs eventArgs, + ServiceConnectInstrumentationOptions options, + IMessagingSystemAttributes attributes, + ActivityContext parentContext = default) { - if (!_sendActivitySource.HasListeners()) + ArgumentNullException.ThrowIfNull(eventArgs); + ArgumentNullException.ThrowIfNull(options); + ArgumentNullException.ThrowIfNull(attributes); + + // SendAsync writes to a specific queue (point-to-point), but in OTel messaging + // semantic conventions that is still classified as "publish" — the producer-side + // operation name. The point-to-point distinction is preserved by the shared + // _activitySource and the per-destination DisplayName (" send"), so + // backends that need to disaggregate send from publish can filter by activity name. + Activity? activity = StartActivityWithParent( + _activitySource, + ActivitySourceName, + ActivityKind.Producer, + options.EnableSendTelemetry, + attributes, + "publish", + parentContext); + + if (activity is null) { + // Single inject. No activity → propagate ambient context for downstream linking. + TraceContextPropagation.InjectTraceContext(Activity.Current, eventArgs.Headers); return null; } - Activity? activity = _sendActivitySource.StartActivity(SendActivitySourceName, ActivityKind.Producer, linkedContext); + try + { + // Single inject. Activity non-null → propagate the new span's context. + TraceContextPropagation.InjectTraceContext(activity, eventArgs.Headers); + + if (activity.IsAllDataRequested) + { + // SendEventArgs carries the per-delivery endpoint only — for multi-endpoint + // fan-out (SendToManyAsync), each delivery raises its own SendEventArgs and + // therefore its own span. The fan-out grouping is recoverable via the message + // CorrelationId, which stays stable across the deliveries. + var destination = string.IsNullOrWhiteSpace(eventArgs.EndPoint) ? null : eventArgs.EndPoint; + + // Truncate the destination first, then append the suffix. Concatenating first + // and truncating second would chop off " send" when the endpoint is near the + // MaxTagValueLength cap — losing the operation signal in the span display. + if (destination is not null) + { + var truncatedDestination = Truncate(destination, options.MaxTagValueLength); + activity.DisplayName = truncatedDestination + " send"; + activity.SetTag(MessagingAttributes.MessagingDestination, truncatedDestination); + } + else + { + activity.DisplayName = "anonymous send"; + activity.SetTag(MessagingAttributes.MessagingDestinationAnonymous, true); + } + + if (eventArgs.Message is null) + { + return activity; + } + + if (eventArgs.Message.CorrelationId != Guid.Empty) + { + activity.SetTag(MessagingAttributes.MessageConversationId, + Truncate(eventArgs.Message.CorrelationId.ToString(), options.MaxTagValueLength)); + } + } + else if (eventArgs.Message is null) + { + return activity; + } + + TelemetryEnrichment.TryEnrich(activity, eventArgs.Message, options); + + return activity; + } + catch + { + activity.Dispose(); + throw; + } + } + + /// + /// Marks as errored with OTel-semantic-convention exception metadata. + /// No-op when is null, so callers don't need their own null guards. + /// + /// + /// Call from inside a catch block (immediately before throw) so the activity's status + /// description reflects the real failure. Exception messages may contain sensitive content + /// (connection strings, user data) — trace-sanitisation is the caller's responsibility. + /// Not currently wired up by the Bus/Producer/Consumer host paths; exposed as a public + /// integration point for downstream consumers instrumenting their own handler pipelines. + /// + public static void SetError(Activity? activity, Exception exception, ServiceConnectInstrumentationOptions options) + { + ArgumentNullException.ThrowIfNull(exception); + ArgumentNullException.ThrowIfNull(options); if (activity is null) { - return null; + return; } - activity - .SetTag(MessagingAttributes.MessagingSystem, "rabbitmq") - .SetTag(MessagingAttributes.ProtocolName, "amqp") - .SetTag(MessagingAttributes.MessagingOperation, "publish"); + var message = options.ExceptionMessageSanitiser is { } sanitise + ? sanitise(exception) + : exception.Message; - activity.DisplayName = (string.IsNullOrWhiteSpace(eventArgs.EndPoint) ? "anonymous" : eventArgs.EndPoint) + " publish"; + activity.SetStatus(ActivityStatusCode.Error, message); - if (!string.IsNullOrEmpty(eventArgs.EndPoint)) +#if NET9_0_OR_GREATER + if (options.ExceptionMessageSanitiser is null) { - activity.SetTag(MessagingAttributes.MessagingDestination, eventArgs.EndPoint); + // No sanitiser — use the framework's AddException (records the raw message). + activity.AddException(exception); } else { - activity.SetTag(MessagingAttributes.MessagingDestinationAnonymous, "true"); + // Sanitiser supplied — opt out of AddException (would re-record the unsanitised + // message). Record the OTel "exception" event manually with the sanitised message. + // Use StackTrace directly rather than ToString() because ToString() includes the + // formatted Message, which would bypass the sanitiser and leak the raw message. + activity.AddEvent(new ActivityEvent("exception", tags: new ActivityTagsCollection + { + ["exception.type"] = exception.GetType().FullName, + ["exception.message"] = message, + ["exception.stacktrace"] = exception.StackTrace ?? string.Empty, + })); } +#else + // .NET 8 fallback: record the OTel semantic-convention "exception" event manually. + // Use StackTrace directly rather than ToString() because ToString() includes the + // formatted Message, which would bypass the sanitiser and leak the raw message. + activity.AddEvent(new ActivityEvent("exception", tags: new ActivityTagsCollection + { + ["exception.type"] = exception.GetType().FullName, + ["exception.message"] = message, + ["exception.stacktrace"] = exception.StackTrace ?? string.Empty, + })); +#endif + } + + /// + /// Extracts a W3C trace context from the headers dictionary. Returns true if a valid + /// traceparent header was present and parsed successfully. + /// + public static bool TryGetExistingContext(IDictionary headers, out ActivityContext context) + => TraceContextPropagation.TryGetExistingContext(headers, out context); - if (eventArgs.Message is null) + internal static string Truncate(string? value, int maxLength) + { + if (value is null) { - return activity; + return string.Empty; } - activity.SetTag(MessagingAttributes.MessageConversationId, eventArgs.Message.CorrelationId.ToString()); - - try + if (maxLength <= 0 || value.Length <= maxLength) { - Options.EnrichWithMessage?.Invoke(activity, eventArgs.Message); + return value; } - catch (Exception ex) + + // value[..maxLength] cuts on a UTF-16 code-unit boundary. If position + // maxLength falls inside a surrogate pair (high surrogate at maxLength-1, + // low surrogate at maxLength), the slice orphans the high surrogate and + // OTLP exporters emit invalid UTF-8. Trim one extra char in that case. + var end = maxLength; + if (char.IsHighSurrogate(value[end - 1])) { - activity.SetTag("enrichment.exception", ex.Message); + end--; } - return activity; + return value[..end]; } - public static bool TryGetExistingContext(Dictionary headers, out ActivityContext context) + // Test seam forwarders so existing tests don't need to rewrite call sites. + internal static void InvokeInjectHeaderForTest(object? carrier, string fieldName, string fieldValue) => + TraceContextPropagation.InvokeInjectHeaderForTest(carrier, fieldName, fieldValue); + internal static void ResetCarrierWarnedFlagForTest() => + TraceContextPropagation.ResetCarrierWarnedFlagForTest(); + + private static Activity? StartActivityWithParent( + ActivitySource activitySource, + string activityName, + ActivityKind kind, + bool enabled, + IMessagingSystemAttributes attributes, + string operation, + ActivityContext parentContext, + bool forceFreshRoot = false) { - if (headers == null) + if (!enabled || !activitySource.HasListeners()) { - context = default; - return false; + return null; } - bool hasHeaders = false; - foreach (string header in DistributedContextPropagator.Current.Fields) + // If the caller didn't supply a parent context and Activity.Current is null + // (consume telemetry disabled but publish on, no ambient activity), fall back + // to the inbound-trace AsyncLocal so the new activity is parented on the + // original publisher's traceId. Without this, the new activity becomes a fresh + // trace root and downstream consumers cannot stitch the graph across this hop. + // EXCEPTION: when the caller explicitly requested a fresh root (malformed + // traceparent on the wire), skip the fallback and every other parent source — + // start a brand-new trace so a poisoned producer cannot graft a bogus span onto + // an unrelated ambient activity. + if (!forceFreshRoot && parentContext == default && Activity.Current is null) { - if (headers.ContainsKey(header)) + parentContext = TraceContextPropagation.TryResolveFallbackParentContext(); + } + + Activity? activity; + if (forceFreshRoot) + { + // Neither StartActivity overload accepts a "force a brand-new trace root" + // signal directly: passing parentId=null or default(ActivityContext) still + // falls through to Activity.Current as the implicit parent. Suppress + // Activity.Current for the StartActivity call so the new span is genuinely + // rooted. + // + // On success, leave Activity.Current = freshRoot (the BCL has set it). + // This is load-bearing: a consume-side caller will run the user's handler + // under this ambient, and any Bus.Publish / Bus.Send issued from the handler + // must read Activity.Current as the fresh root so the outbound traceparent + // carries the new trace, not the host ambient that the malformed inbound + // traceparent was trying to graft onto. The eventual Dispose() of the + // returned activity calls Activity.Stop(), which sets + // Activity.Current = freshRoot.Parent (null) — the correct end state once + // consume processing is done. Restore the prior ambient only on the failure + // paths (StartActivity throw, sampler-drop returning null), where no fresh + // root exists to flow forward. + var prior = Activity.Current; + Activity.Current = null; + try { - hasHeaders = true; - break; + activity = activitySource.StartActivity(activityName, kind, parentContext: default); + } + catch + { + Activity.Current = prior; + throw; } - } - if (hasHeaders) + if (activity is null) + { + Activity.Current = prior; + return null; + } + } + else { - DistributedContextPropagator.Current.ExtractTraceIdAndState(headers, ExtractTraceIdAndState, - out string traceParent, out string traceState); - return ActivityContext.TryParse(traceParent, traceState, out context); + activity = activitySource.StartActivity(activityName, kind, parentContext); + if (activity is null) + { + return null; + } } - context = default; - return false; - } + if (forceFreshRoot) + { + // Diagnostic tag — operators searching for poisoned producers can filter on this. + activity.SetTag("enrichment.malformed_traceparent", true); + } - private static void ExtractTraceIdAndState(object eventArgs, string name, out string? value, out IEnumerable? values) - { - if (eventArgs is Dictionary headers && headers.TryGetValue(name, out object? propsVal)) + if (activity.IsAllDataRequested) { - if (propsVal is byte[] bytes) + // Map the implementation-specific operation name to the OTel-defined operation type. + // OTel defines "publish" | "receive" | "process". Consume spans use "process" + // because ServiceConnect emits them during handler dispatch, not during broker + // polling ("receive" is the broker-poll side). Send-side spans are "publish". + var operationType = operation switch { - value = Encoding.UTF8.GetString(bytes); - values = default; - return; + "process" => "process", + _ => "publish", // "publish", "send", "request" all map to OTel "publish" + }; + + activity + .SetTag(MessagingAttributes.MessagingSystem, attributes.MessagingSystem) + .SetTag(MessagingAttributes.ProtocolName, attributes.ProtocolName) + .SetTag(MessagingAttributes.MessagingOperationType, operationType) + .SetTag(MessagingAttributes.MessagingOperationName, operation); + + // server.address and server.port are required by the OTel messaging semconv for + // correlation across multi-broker deployments. Emit only when the value is known; + // skipping an empty address avoids polluting spans with a meaningless empty string. + var serverAddress = attributes.ServerAddress; + if (!string.IsNullOrEmpty(serverAddress)) + { + activity.SetTag(MessagingAttributes.ServerAddress, serverAddress); } - if (propsVal is string stringValue) + + var serverPort = attributes.ServerPort; + if (serverPort > 0) { - value = stringValue; - values = default; - return; + activity.SetTag(MessagingAttributes.ServerPort, serverPort); } } - value = default; - values = default; + return activity; } -} \ No newline at end of file + + internal static bool IsPublishTelemetryEnabled(ServiceConnectInstrumentationOptions options) + => options.EnablePublishTelemetry && _activitySource.HasListeners(); + + internal static bool IsSendTelemetryEnabled(ServiceConnectInstrumentationOptions options) + => options.EnableSendTelemetry && _activitySource.HasListeners(); + + internal static bool IsConsumeTelemetryEnabled(ServiceConnectInstrumentationOptions options) + => options.EnableConsumeTelemetry && _activitySource.HasListeners(); + + internal static void InvokeTryEnrichForTest(Activity activity, Message? message, ServiceConnectInstrumentationOptions options) => + TelemetryEnrichment.TryEnrich(activity, message, options); + + internal static void InvokeTryEnrichForTest(Activity activity, byte[]? bytes, ServiceConnectInstrumentationOptions options) => + TelemetryEnrichment.TryEnrich(activity, bytes, options); +} diff --git a/src/ServiceConnect.Telemetry/ServiceConnectInstrumentationOptions.cs b/src/ServiceConnect.Telemetry/ServiceConnectInstrumentationOptions.cs index 00d24d6b2..b53a94199 100644 --- a/src/ServiceConnect.Telemetry/ServiceConnectInstrumentationOptions.cs +++ b/src/ServiceConnect.Telemetry/ServiceConnectInstrumentationOptions.cs @@ -1,43 +1,121 @@ -using ServiceConnect.Interfaces; using System.Diagnostics; +using ServiceConnect.Interfaces; namespace ServiceConnect.Telemetry; /// -/// Options for . +/// Options for telemetry generation. /// -public class ServiceConnectInstrumentationOptions +public sealed class ServiceConnectInstrumentationOptions { + private bool _frozen; + private Action? _enrichWithMessage; + private Action? _enrichWithMessageBytes; + private bool _enablePublishTelemetry = true; + private bool _enableConsumeTelemetry = true; + private bool _enableSendTelemetry = true; + private int _maxTagValueLength = 256; + private Func? _exceptionMessageSanitiser; + + /// + /// Latches this options object so any further setter call throws . + /// Called by after the user's configure callback returns. + /// + internal void Freeze() => _frozen = true; + + private void ThrowIfFrozen([System.Runtime.CompilerServices.CallerMemberName] string? memberName = null) + { + if (_frozen) + { + throw new InvalidOperationException( + $"ServiceConnectInstrumentationOptions is frozen — '{memberName}' cannot be modified after AddTelemetry has returned. " + + "Configure all properties inside the AddTelemetry callback."); + } + } + /// - /// Gets or sets an action to enrich an Activity from message. + /// Gets or sets an action to enrich an Activity from a message. /// /// /// : the activity being enriched. /// : the message being published/consumed. + /// + /// SECURITY WARNING: do not add raw payload fields as span tags without review — + /// message bodies may contain PII, secrets, or regulated data that would then be + /// exported to your OTel collector / downstream observability backends. + /// /// - public Action EnrichWithMessage { get; set; } + public Action? EnrichWithMessage + { + get => _enrichWithMessage; + set { ThrowIfFrozen(); _enrichWithMessage = value; } + } /// - /// Gets or sets an action to enrich an Activity from message. + /// Gets or sets an action to enrich an Activity from message bytes. /// /// /// : the activity being enriched. - /// []: the data of the message being published/consumed. + /// []: the raw bytes of the message being published/consumed. + /// + /// SECURITY WARNING: do not attach raw bytes or decoded payload as span tags — + /// the message body may contain PII, secrets, or regulated data that would then be + /// exported to your OTel collector / downstream observability backends. + /// /// - public Action EnrichWithMessageBytes { get; set; } + public Action? EnrichWithMessageBytes + { + get => _enrichWithMessageBytes; + set { ThrowIfFrozen(); _enrichWithMessageBytes = value; } + } /// /// If set to true, the instrumentation will collect telemetry information for publish commands. /// - public bool EnablePublishTelemetry { get; set; } = true; + public bool EnablePublishTelemetry + { + get => _enablePublishTelemetry; + set { ThrowIfFrozen(); _enablePublishTelemetry = value; } + } /// /// If set to true, the instrumentation will collect telemetry information for consume commands. /// - public bool EnableConsumeTelemetry { get; set; } = true; + public bool EnableConsumeTelemetry + { + get => _enableConsumeTelemetry; + set { ThrowIfFrozen(); _enableConsumeTelemetry = value; } + } /// /// If set to true, the instrumentation will collect telemetry information for send commands. /// - public bool EnableSendTelemetry { get; set; } = true; -} \ No newline at end of file + public bool EnableSendTelemetry + { + get => _enableSendTelemetry; + set { ThrowIfFrozen(); _enableSendTelemetry = value; } + } + + /// + /// Maximum length, in characters, of user-controlled string values written as activity tags + /// (destination, routing key, MessageId, conversation id). Values exceeding this length are + /// truncated. Defaults to 256. Set to to disable truncation. + /// + public int MaxTagValueLength + { + get => _maxTagValueLength; + set { ThrowIfFrozen(); _maxTagValueLength = value; } + } + + /// + /// Optional sanitiser invoked on exception messages before they are written to + /// activity status descriptions and "exception.message" event tags. Use to redact + /// PII or sensitive content. Returns the message to record. If null (default), + /// the raw is recorded. + /// + public Func? ExceptionMessageSanitiser + { + get => _exceptionMessageSanitiser; + set { ThrowIfFrozen(); _exceptionMessageSanitiser = value; } + } +} diff --git a/src/ServiceConnect.Telemetry/TelemetryBuilderExtensions.cs b/src/ServiceConnect.Telemetry/TelemetryBuilderExtensions.cs new file mode 100644 index 000000000..c93459306 --- /dev/null +++ b/src/ServiceConnect.Telemetry/TelemetryBuilderExtensions.cs @@ -0,0 +1,56 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.DependencyInjection.Extensions; +using ServiceConnect; + +namespace ServiceConnect.Telemetry; + +/// +/// Wires the built-in and +/// into a . +/// +public static class TelemetryBuilderExtensions +{ + /// + /// Registers the built-in telemetry middleware as the outermost middleware + /// on both the send and processing pipelines, and registers + /// + + /// in DI. Users can override the + /// messaging-system attributes by registering IMessagingSystemAttributes + /// before calling this method. + /// + /// The builder to configure. + /// Optional callback that mutates the instrumentation options. + /// The same builder, for chaining. + public static ServiceConnectBuilder AddTelemetry( + this ServiceConnectBuilder builder, + Action? configure = null) + { + ArgumentNullException.ThrowIfNull(builder); + + var options = new ServiceConnectInstrumentationOptions(); + configure?.Invoke(options); + options.Freeze(); + + builder.AddRegistration(services => + { + // TryAddSingleton across the board so a second AddTelemetry call (or two + // feature modules each calling it) does not double-register the middleware + // or the options. The options instance from the first call wins; that + // matches the "first registration wins" semantics of TryAdd. + services.TryAddSingleton(options); + services.TryAddSingleton(); + services.TryAddSingleton(); + services.TryAddSingleton(); + }); + + // InsertOutermost on both pipelines so the telemetry middleware brackets every + // other middleware (span starts first, ends last) and so a repeat AddTelemetry + // call doesn't double-register — each Insert*Outermost method de-duplicates by + // middleware type so we don't emit two activities per message. + builder + .InsertSendMessageMiddlewareOutermost() + .InsertMessageProcessingMiddlewareOutermost(); + + return builder; + } +} diff --git a/src/ServiceConnect.Telemetry/TelemetryEnrichment.cs b/src/ServiceConnect.Telemetry/TelemetryEnrichment.cs new file mode 100644 index 000000000..cb926a8f8 --- /dev/null +++ b/src/ServiceConnect.Telemetry/TelemetryEnrichment.cs @@ -0,0 +1,65 @@ +using System.Diagnostics; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Telemetry; + +/// +/// Invokes user-supplied enrichment callbacks against created activities. Catches and +/// records enrichment exceptions as a tag rather than failing the dispatch. +/// +internal static class TelemetryEnrichment +{ + /// + /// Invokes + /// against the activity. Swallows non-OCE exceptions and records the type name + /// on the activity as enrichment.exception. OCE is rethrown so callers can + /// distinguish cancellation from enrichment failure. + /// + internal static void TryEnrich(Activity activity, Message? message, ServiceConnectInstrumentationOptions options) + { + if (message is null) + { + return; + } + + try + { + options.EnrichWithMessage?.Invoke(activity, message); + } + catch (OperationCanceledException) + { + throw; + } + catch (Exception ex) + { + // Tag the exception type only. Message strings can contain caller-controlled + // payloads or PII; the type name is sufficient diagnostic. + activity.SetTag("enrichment.exception", ex.GetType().FullName); + } + } + + /// + /// Bytes overload of the enrichment helper. Same semantics as the + /// overload: OCE rethrown, other exceptions tagged. + /// + internal static void TryEnrich(Activity activity, byte[]? message, ServiceConnectInstrumentationOptions options) + { + if (message is null) + { + return; + } + + try + { + options.EnrichWithMessageBytes?.Invoke(activity, message); + } + catch (OperationCanceledException) + { + throw; + } + catch (Exception ex) + { + activity.SetTag("enrichment.exception", ex.GetType().FullName); + } + } +} diff --git a/src/ServiceConnect.Telemetry/TelemetryMeterExtensions.cs b/src/ServiceConnect.Telemetry/TelemetryMeterExtensions.cs new file mode 100644 index 000000000..67b138046 --- /dev/null +++ b/src/ServiceConnect.Telemetry/TelemetryMeterExtensions.cs @@ -0,0 +1,20 @@ +using OpenTelemetry.Metrics; +using ServiceConnect.Diagnostics; + +namespace ServiceConnect.Telemetry; + +/// +/// OpenTelemetry registration helpers for ServiceConnect's . +/// +public static class TelemetryMeterExtensions +{ + /// + /// Subscribes the OpenTelemetry MeterProvider to ServiceConnect's "ServiceConnect.Bus" meter. + /// Equivalent to builder.AddMeter(ServiceConnectMeter.MeterName). + /// + public static MeterProviderBuilder AddServiceConnectInstrumentation(this MeterProviderBuilder builder) + { + ArgumentNullException.ThrowIfNull(builder); + return builder.AddMeter(ServiceConnectMeter.MeterName); + } +} diff --git a/src/ServiceConnect.Telemetry/TelemetryProcessingMiddleware.cs b/src/ServiceConnect.Telemetry/TelemetryProcessingMiddleware.cs new file mode 100644 index 000000000..2f00515e2 --- /dev/null +++ b/src/ServiceConnect.Telemetry/TelemetryProcessingMiddleware.cs @@ -0,0 +1,152 @@ +using System.Diagnostics; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Telemetry; + +/// +/// Built-in that emits one consume +/// activity per inbound message via . +/// +internal sealed class TelemetryProcessingMiddleware( + ServiceConnectInstrumentationOptions options, + IMessagingSystemAttributes attributes) : IMessageProcessingMiddleware +{ + private readonly ServiceConnectInstrumentationOptions _options = options; + private readonly IMessagingSystemAttributes _attributes = attributes; + + /// + public async Task ProcessAsync( + ReadOnlyMemory messageBytes, + Type messageType, + object message, + IDictionary headers, + Envelope envelope, + MessageProcessingDelegate next, + CancellationToken cancellationToken) + { + ArgumentNullException.ThrowIfNull(messageType); + ArgumentNullException.ThrowIfNull(envelope); + ArgumentNullException.ThrowIfNull(next); + + Activity? activity = null; + IDisposable? inboundFallback = null; + var publishOrSendEnabled = + ServiceConnectActivitySource.IsPublishTelemetryEnabled(_options) + || ServiceConnectActivitySource.IsSendTelemetryEnabled(_options); + if (ServiceConnectActivitySource.IsConsumeTelemetryEnabled(_options)) + { + // Materialise the body byte[] ONLY when an EnrichWithMessageBytes callback is + // configured. Without that gate, every consume-telemetry-enabled delivery pays + // a full-body byte[] copy (envelope.Body.ToArray()) regardless of whether the + // bytes are actually read — at 4 KiB body × 10k msg/s that's ~40 MB/s of + // throwaway allocations. The default-null callback means most callers never + // need the array. + var bytes = _options.EnrichWithMessageBytes is null + ? [] + : envelope.Body.ToArray(); + var args = new ConsumeEventArgs + { + Message = bytes, + BodySize = envelope.Body.Length, + Type = messageType.FullName ?? string.Empty, + // IMessageProcessingMiddleware's contract types `headers` as IDictionary; + // the in-tree RabbitMQ transport always supplies a Dictionary<,> (which also implements + // IReadOnlyDictionary<,>), but third-party transports may supply an IDictionary impl that + // doesn't — a downcast would throw InvalidCastException mid-pipeline. Defensive copy + // bounded to consume-telemetry-enabled probes: the ConsumeEventArgs surface needs + // IReadOnlyDictionary<,>, so we materialise one. Cost is one Dictionary alloc with the + // 5-15 typical ServiceConnect headers. + Headers = new Dictionary(headers, StringComparer.Ordinal), + }; + activity = ServiceConnectActivitySource.Consume(args, _options, _attributes); + + // Sampling drop: listeners are registered but the sampler returned None/RecordOnly, + // so StartActivity returned null. Without a stashed fallback, a subsequent publish + // from the handler observes Activity.Current == null and starts a fresh trace root, + // snapping the cross-broker trace graph at every sampled-out consume hop. Mirror + // the consume-disabled branch below so the publish path can stitch through. + if (activity is null && publishOrSendEnabled) + { + inboundFallback = TryStashInboundTraceFallback(headers); + } + } + else if (publishOrSendEnabled) + { + // Consume telemetry is disabled but the handler may still publish or send. Without + // intervention, Activity.Current is null when the handler invokes Bus.Send/Publish, + // so the new publish/send activity becomes a fresh trace root and the downstream + // consumer cannot stitch the graph across this hop. Extract the inbound traceparent + // into an AsyncLocal so the publish/send paths use it as their parent context. + inboundFallback = TryStashInboundTraceFallback(headers); + } + + try + { + var result = await next(messageBytes, messageType, message, headers, envelope, cancellationToken).ConfigureAwait(false); + if (!result.Success) + { + if (result.Exception is OperationCanceledException) + { + // Cooperative cancellation reported via the result envelope rather than a + // thrown exception still completes the activity with Unset status, mirroring + // the catch (OperationCanceledException) path below. + } + else if (result.Exception is not null) + { + ServiceConnectActivitySource.SetError(activity, result.Exception, _options); + } + else + { + activity?.SetStatus(ActivityStatusCode.Error, "Dispatch returned Success=false without an exception"); + } + } + return result; + } + catch (OperationCanceledException) + { + // Cooperative cancellation is not a span error per OTel messaging + // semconv. The activity is disposed in the finally block; do not + // tag it with ActivityStatusCode.Error or downstream SLO dashboards + // will record every graceful shutdown as a failed consume. + throw; + } + catch (Exception ex) + { + ServiceConnectActivitySource.SetError(activity, ex, _options); + throw; + } + finally + { + activity?.Dispose(); + inboundFallback?.Dispose(); + } + } + + private static IDisposable? TryStashInboundTraceFallback(IDictionary headers) + { + // Mirror the propagator's W3C extract: read traceparent and (optional) tracestate + // from the inbound headers and stash the raw strings so the publish-side fallback + // can write them verbatim into outgoing headers. Header values arrive byte[]-encoded + // from the RabbitMQ transport; HeaderDecoder unwraps both byte[] and string forms. + if (!headers.TryGetValue(TraceParentHeaderKey, out var traceParentObj)) + { + return null; + } + var traceParent = HeaderDecoder.Decode(traceParentObj); + if (string.IsNullOrEmpty(traceParent)) + { + return null; + } + + string? traceState = null; + if (headers.TryGetValue(TraceStateHeaderKey, out var traceStateObj)) + { + traceState = HeaderDecoder.Decode(traceStateObj); + } + + return TraceContextPropagation.SetInboundTraceFallback(traceParent, traceState); + } + + private const string TraceParentHeaderKey = "traceparent"; + private const string TraceStateHeaderKey = "tracestate"; +} diff --git a/src/ServiceConnect.Telemetry/TelemetrySendMiddleware.cs b/src/ServiceConnect.Telemetry/TelemetrySendMiddleware.cs new file mode 100644 index 000000000..a097fd666 --- /dev/null +++ b/src/ServiceConnect.Telemetry/TelemetrySendMiddleware.cs @@ -0,0 +1,72 @@ +using System.Diagnostics; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Telemetry; + +/// +/// Built-in that emits one publish or +/// send activity per outgoing message via . +/// +internal sealed class TelemetrySendMiddleware( + ServiceConnectInstrumentationOptions options, + IMessagingSystemAttributes attributes) : ISendMessageMiddleware +{ + private readonly ServiceConnectInstrumentationOptions _options = options; + private readonly IMessagingSystemAttributes _attributes = attributes; + + /// + public async Task ProcessAsync(SendContext context, SendMessageDelegate next, CancellationToken cancellationToken) + { + ArgumentNullException.ThrowIfNull(context); + ArgumentNullException.ThrowIfNull(next); + + Activity? activity = context.Operation switch + { + SendOperation.Publish => ServiceConnectActivitySource.Publish(new PublishEventArgs + { + Message = context.Message, + Headers = context.Headers, + RoutingKey = context.RoutingKey ?? string.Empty, + // OTel messaging semconv: messaging.destination.name carries the broker-side + // exchange/topic, not the CLR type. SendContext does not currently carry the + // broker exchange (the producer pipeline resolves it from the type at the + // transport layer), so without an upstream architectural change we leave + // Exchange empty here. Spans surface as messaging.destination.anonymous=true, + // which is correct ("anonymous from the span's perspective") rather than + // misleadingly stamping the CLR type into destination.name. Callers wanting + // per-type span discrimination should use the activity DisplayName + // (" publish") or attach an enricher via EnrichWithMessage. + Exchange = string.Empty, + }, _options, _attributes), + SendOperation.Send or SendOperation.Request => ServiceConnectActivitySource.Send(new SendEventArgs + { + Message = context.Message, + Headers = context.Headers, + EndPoint = context.EndPoint ?? string.Empty, + }, _options, _attributes), + _ => null, + }; + + try + { + await next(context, cancellationToken).ConfigureAwait(false); + } + catch (OperationCanceledException) + { + // Cooperative cancellation is not a span error per OTel messaging + // semconv. The activity is disposed in the finally block; do not + // tag it with ActivityStatusCode.Error or downstream SLO dashboards + // will record every graceful shutdown as a failed publish. + throw; + } + catch (Exception ex) + { + ServiceConnectActivitySource.SetError(activity, ex, _options); + throw; + } + finally + { + activity?.Dispose(); + } + } +} diff --git a/src/ServiceConnect.Telemetry/TelemetryTracerExtensions.cs b/src/ServiceConnect.Telemetry/TelemetryTracerExtensions.cs new file mode 100644 index 000000000..e1756074a --- /dev/null +++ b/src/ServiceConnect.Telemetry/TelemetryTracerExtensions.cs @@ -0,0 +1,29 @@ +using OpenTelemetry.Trace; + +namespace ServiceConnect.Telemetry; + +/// +/// Registers ServiceConnect's with +/// an OpenTelemetry tracer provider so publish, send, and consume activities are +/// exported. +/// +public static class TelemetryTracerExtensions +{ + /// + /// Subscribes the OpenTelemetry tracer provider to the activity source emitted + /// by . + /// + /// The tracer provider builder. + /// The same builder, for chaining. + /// + /// Equivalent to calling + /// builder.AddSource(ServiceConnectActivitySource.ActivitySourceName); + /// using this extension keeps the source name in one place, so a rename never + /// silently disables a caller's telemetry. + /// + public static TracerProviderBuilder AddServiceConnectInstrumentation(this TracerProviderBuilder builder) + { + ArgumentNullException.ThrowIfNull(builder); + return builder.AddSource(ServiceConnectActivitySource.ActivitySourceName); + } +} diff --git a/src/ServiceConnect.Telemetry/TraceContextPropagation.cs b/src/ServiceConnect.Telemetry/TraceContextPropagation.cs new file mode 100644 index 000000000..f8e5005b8 --- /dev/null +++ b/src/ServiceConnect.Telemetry/TraceContextPropagation.cs @@ -0,0 +1,194 @@ +using System.Diagnostics; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Telemetry; + +/// +/// W3C trace-context propagation: extracts traceparent/tracestate from inbound headers, +/// injects them into outbound headers, and provides an AsyncLocal-backed inbound-fallback +/// so a configuration with publish telemetry enabled but consume telemetry disabled can +/// still continue the trace across the broker. +/// +internal static class TraceContextPropagation +{ + // W3C field names. DistributedContextPropagator uses these for its W3C propagator, + // which is the default and effectively standard. Hard-coding here keeps the fallback + // path independent of the propagator instance — if a user installs a non-W3C + // propagator, the fallback still emits W3C, which is the dominant on-wire format. + private const string TraceParentHeaderName = "traceparent"; + private const string TraceStateHeaderName = "tracestate"; + + private static readonly AsyncLocal _inboundTraceFallback = new(); + + private static int _warnedAboutCarrierShape; + + internal readonly record struct InboundTraceSnapshot(string TraceParent, string? TraceState); + + private sealed class InboundTraceFallbackScope(InboundTraceSnapshot? prior) : IDisposable + { + private InboundTraceSnapshot? _prior = prior; + private int _disposed; + + public void Dispose() + { + if (Interlocked.Exchange(ref _disposed, 1) != 0) + { + return; + } + _inboundTraceFallback.Value = _prior; + _prior = default; + } + } + + /// + /// Attempts to parse a W3C trace context from the supplied headers. Returns + /// true and populates when the headers contain + /// a well-formed traceparent; otherwise returns false. + /// + internal static bool TryGetExistingContext(IDictionary headers, out ActivityContext context) + { + if (headers == null) + { + context = default; + return false; + } + + DistributedContextPropagator.Current.ExtractTraceIdAndState( + headers, ExtractTraceIdAndState, + out string? traceParent, out string? traceState); + return ActivityContext.TryParse(traceParent, traceState, out context); + } + + /// + /// Probes the carrier headers for a "traceparent" key in the same dictionary shapes + /// understands. Used to distinguish "no traceparent + /// on the wire" from "traceparent present but rejected by the W3C propagator" — both + /// surface as a null traceId at the propagator boundary, but only the second deserves + /// a malformed-header diagnostic and a forced fresh trace root. + /// + internal static bool HasTraceparentHeader(object? headers) => headers switch + { + IDictionary objHeaders => objHeaders.ContainsKey(TraceParentHeaderName), + IReadOnlyDictionary roObjHeaders => roObjHeaders.ContainsKey(TraceParentHeaderName), + IDictionary strHeaders => strHeaders.ContainsKey(TraceParentHeaderName), + IReadOnlyDictionary roStrHeaders => roStrHeaders.ContainsKey(TraceParentHeaderName), + _ => false, + }; + + internal static void ExtractTraceIdAndState(object? eventArgs, string name, out string? value, out IEnumerable? values) + { + values = default; + + // Iterate via the interface, not concrete Dictionary<,>. ConsumeContext + // wraps headers as ReadOnlyDictionary, which the old + // concrete-type switch did not recognise — so every consume span arrived + // without its traceparent and restarted the trace. Check the object + // variant first (matches the raw header bag off the wire) then fall + // back to a string-keyed dictionary for already-decoded headers. + switch (eventArgs) + { + case IDictionary objHeaders when objHeaders.TryGetValue(name, out object? objVal): + value = HeaderDecoder.Decode(objVal); + return; + case IReadOnlyDictionary roObjHeaders when roObjHeaders.TryGetValue(name, out object? roObjVal): + value = HeaderDecoder.Decode(roObjVal); + return; + // string branch: values are already decoded; HeaderDecoder.Decode is for byte[] RabbitMQ headers only. + case IDictionary strHeaders when strHeaders.TryGetValue(name, out string? strVal): + value = strVal; + return; + case IReadOnlyDictionary roStrHeaders when roStrHeaders.TryGetValue(name, out string? roStrVal): + value = roStrVal; + return; + default: + value = default; + return; + } + } + + /// + /// Writes the current activity's W3C trace context into the outgoing-headers dictionary + /// so downstream consumers can link their consume span to the originating publish. Mirrors + /// 's extract side; without injection, + /// each consume span becomes a new trace root and the end-to-end graph cannot be stitched + /// across the broker. + /// + /// + /// When is null, falls back to the inbound-context snapshot + /// stashed by when consume telemetry is disabled + /// but publish telemetry is enabled. Without that fallback, a configuration of + /// EnableConsumeTelemetry=false ∧ EnablePublishTelemetry=true would silently snap + /// the trace at every consume hop because the consume side never produces an + /// Activity.Current for the publish side to read. + /// + internal static void InjectTraceContext(Activity? activity, IDictionary headers) + { + if (activity is not null) + { + DistributedContextPropagator.Current.Inject(activity, headers, InjectHeader); + return; + } + + if (_inboundTraceFallback.Value is { } fallback) + { + // Pass through the original publisher's traceparent verbatim. Downstream + // consumers see the original publisher as their parent, skipping our + // untraced consume hop — preferable to starting a fresh trace. + headers[TraceParentHeaderName] = fallback.TraceParent; + if (!string.IsNullOrEmpty(fallback.TraceState)) + { + headers[TraceStateHeaderName] = fallback.TraceState!; + } + } + } + + /// + /// Stashes the inbound traceparent/tracestate so a publish on the same logical message + /// flow can continue the trace even when consume telemetry is disabled. The middleware + /// must clear the value in a finally to avoid bleeding context into unrelated work. + /// + internal static IDisposable SetInboundTraceFallback(string traceParent, string? traceState) + { + var prior = _inboundTraceFallback.Value; + _inboundTraceFallback.Value = new InboundTraceSnapshot(traceParent, traceState); + return new InboundTraceFallbackScope(prior); + } + + internal static ActivityContext TryResolveFallbackParentContext() + { + if (_inboundTraceFallback.Value is not { } fallback) + { + return default; + } + if (!ActivityContext.TryParse(fallback.TraceParent, fallback.TraceState, out var context)) + { + return default; + } + return context; + } + + internal static void InjectHeader(object? carrier, string fieldName, string fieldValue) + { + if (carrier is IDictionary headers) + { + headers[fieldName] = fieldValue; + return; + } + + if (Interlocked.CompareExchange(ref _warnedAboutCarrierShape, 1, 0) == 0) + { + // Once-per-process diagnostic — a refactor that changes the carrier type + // silently disables trace propagation. Use Trace because static helpers + // don't have an ILogger; OTel users routinely route .NET trace listeners. + Trace.TraceWarning( + "ServiceConnectActivitySource.InjectHeader: unsupported carrier type {0}; trace context not propagated.", + carrier?.GetType().FullName ?? ""); + } + } + + internal static void InvokeInjectHeaderForTest(object? carrier, string fieldName, string fieldValue) => + InjectHeader(carrier, fieldName, fieldValue); + + internal static void ResetCarrierWarnedFlagForTest() => + Interlocked.Exchange(ref _warnedAboutCarrierShape, 0); +} diff --git a/src/ServiceConnect.UnitTests/Aggregation/AggregatorTimeoutSentinelTests.cs b/src/ServiceConnect.UnitTests/Aggregation/AggregatorTimeoutSentinelTests.cs new file mode 100644 index 000000000..c04f6101a --- /dev/null +++ b/src/ServiceConnect.UnitTests/Aggregation/AggregatorTimeoutSentinelTests.cs @@ -0,0 +1,72 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging.Abstractions; +using ServiceConnect.Interfaces; +using ServiceConnect.Services.Processors; +using Xunit; + +namespace ServiceConnect.UnitTests.Aggregation; + +// These tests pin the diagnostic message the registry emits when both flush paths are +// misconfigured: they verify not only that registration fails but that the exception +// identifies the offending handler type and the bad configuration value by name. +// AggregatorRegistryTests covers the same failure modes parametrically; these sentinel +// tests add message-content assertions so the diagnostic contract is explicitly tested. +public class AggregatorTimeoutSentinelTests +{ + private sealed class SentinelMessage : Message + { + public SentinelMessage() : base(Guid.NewGuid()) { } + } + + private sealed class InfiniteTimeoutAggregator : Aggregator + { + public override int BatchSize() => 5; + public override TimeSpan Timeout() => System.Threading.Timeout.InfiniteTimeSpan; + public override Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default) + => Task.CompletedTask; + } + + private sealed class ZeroBatchSizeAggregator : Aggregator + { + public override int BatchSize() => 0; + public override TimeSpan Timeout() => TimeSpan.FromSeconds(1); + public override Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default) + => Task.CompletedTask; + } + + [Fact] + public void Registry_ThrowsInvalidOperation_WhenTimeoutIsInfiniteTimeSpan() + { + var services = new ServiceCollection(); + services.AddTransient, InfiniteTimeoutAggregator>(); + var sp = services.BuildServiceProvider(); + + var refs = new List + { + new() { MessageType = typeof(SentinelMessage), HandlerType = typeof(InfiniteTimeoutAggregator) }, + }; + + var ex = Assert.Throws(() => + new AggregatorRegistry(refs, sp.GetRequiredService(), NullLogger.Instance)); + Assert.Contains(typeof(InfiniteTimeoutAggregator).FullName!, ex.Message); + Assert.Contains("Timeout=", ex.Message); + } + + [Fact] + public void Registry_ThrowsInvalidOperation_WhenBatchSizeIsZero() + { + var services = new ServiceCollection(); + services.AddTransient, ZeroBatchSizeAggregator>(); + var sp = services.BuildServiceProvider(); + + var refs = new List + { + new() { MessageType = typeof(SentinelMessage), HandlerType = typeof(ZeroBatchSizeAggregator) }, + }; + + var ex = Assert.Throws(() => + new AggregatorRegistry(refs, sp.GetRequiredService(), NullLogger.Instance)); + Assert.Contains(typeof(ZeroBatchSizeAggregator).FullName!, ex.Message); + Assert.Contains("BatchSize=0", ex.Message); + } +} diff --git a/src/ServiceConnect.UnitTests/Aggregator/AggregatorProcessorTests.cs b/src/ServiceConnect.UnitTests/Aggregator/AggregatorProcessorTests.cs deleted file mode 100644 index 4fa5f10e2..000000000 --- a/src/ServiceConnect.UnitTests/Aggregator/AggregatorProcessorTests.cs +++ /dev/null @@ -1,310 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; -using System.Linq; -using Moq; -using Newtonsoft.Json; -using ServiceConnect.Core; -using ServiceConnect.Interfaces; -using ServiceConnect.UnitTests.Fakes.Messages; -using Xunit; - -namespace ServiceConnect.UnitTests.Aggregator -{ - public class FakeAggregator : Aggregator - { - public TimeSpan Time { get; set; } - public bool Executed { get; set; } - public int Batch { get; set; } - - public override TimeSpan Timeout() - { - return Time; - } - - public override int BatchSize() - { - return Batch; - } - - public override void Execute(IList message) - { - Messages = message; - Executed = true; - } - - public IList Messages { get; set; } - } - - public class AggregatorProcessorTests - { - [Fact] - public void ShouldFindTheAggregatorForTheMessageType() - { - // Arrange - var mockContainer = new Mock(); - var mockAggregatorPersistor = new Mock(); - var mockLogger = new Mock(); - - var handlerRef = new HandlerReference() - { - HandlerType = typeof(FakeAggregator), - MessageType = typeof(FakeMessage1) - }; - mockContainer.Setup(x => x.GetHandlerTypes(typeof(Aggregator))).Returns(new List{ handlerRef }); - mockContainer.Setup(x => x.GetInstance(typeof (FakeAggregator))).Returns(new FakeAggregator - { - Time = new TimeSpan(0, 0, 0, 1) - }); - mockAggregatorPersistor.Setup(x => x.InsertData(It.IsAny(), It.IsAny())); - - - var aggregator = new AggregatorProcessor(mockAggregatorPersistor.Object, mockContainer.Object, typeof(FakeAggregator), mockLogger.Object); - - // Act - aggregator.ProcessMessage(JsonConvert.SerializeObject(new FakeMessage1(Guid.NewGuid()))); - - // Assert - mockContainer.Verify(x => x.GetInstance(typeof (FakeAggregator)), Times.Once()); - } - - [Fact] - public void IfTimerIsNotSetAndBatchSizeIsNotSetThenBatchSizeIsSetTo10() - { - // Arrange - var mockContainer = new Mock(); - var mockAggregatorPersistor = new Mock(); - var mockLogger = new Mock(); - - var handlerRef = new HandlerReference() - { - HandlerType = typeof(FakeAggregator), - MessageType = typeof(FakeMessage1) - }; - mockContainer.Setup(x => x.GetHandlerTypes(typeof(Aggregator))).Returns(new List { handlerRef }); - var aggregator = new FakeAggregator(); - mockContainer.Setup(x => x.GetInstance(typeof(FakeAggregator))).Returns(aggregator); - mockAggregatorPersistor.Setup(x => x.InsertData(It.IsAny(), It.IsAny())); - - mockAggregatorPersistor.Setup(x => x.Count(typeof(FakeMessage1).AssemblyQualifiedName)).Returns(10); - mockAggregatorPersistor.Setup(x => x.GetData(typeof(FakeMessage1).AssemblyQualifiedName)).Returns(new List()); - - var aggregatorProcessor = new AggregatorProcessor(mockAggregatorPersistor.Object, mockContainer.Object, typeof(FakeAggregator), mockLogger.Object); - - // Act - aggregatorProcessor.ProcessMessage(JsonConvert.SerializeObject(new FakeMessage1(Guid.NewGuid()))); - - // Assert - // Only calls this if batchsize is equal to number of messages in persistance store. - mockAggregatorPersistor.Verify(x => x.GetData(typeof(FakeMessage1).AssemblyQualifiedName), Times.Once); - } - - [Fact] - public void ShouldAddMessageToAggregatorPersistor() - { - // Arrange - var mockContainer = new Mock(); - var mockAggregatorPersistor = new Mock(); - var mockLogger = new Mock(); - - var handlerRef = new HandlerReference() - { - HandlerType = typeof(FakeAggregator), - MessageType = typeof(FakeMessage1) - }; - mockContainer.Setup(x => x.GetHandlerTypes(typeof(Aggregator))).Returns(new List { handlerRef }); - mockContainer.Setup(x => x.GetInstance(typeof(FakeAggregator))).Returns(new FakeAggregator - { - Time = new TimeSpan(0, 0, 0, 1) - }); - mockAggregatorPersistor.Setup(x => x.InsertData(It.IsAny(), It.IsAny())); - - - var aggregator = new AggregatorProcessor(mockAggregatorPersistor.Object, mockContainer.Object, typeof(FakeAggregator), mockLogger.Object); - - // Act - aggregator.ProcessMessage(JsonConvert.SerializeObject(new FakeMessage1(Guid.NewGuid()))); - - // Assert - mockAggregatorPersistor.Verify(x => x.InsertData(It.IsAny(), It.IsAny()), Times.Once); - } - - [Fact] - public void ShouldNotExecuteAggregatorIfBatchSizeHasntBeenSet() - { - // Arrange - var mockContainer = new Mock(); - var mockAggregatorPersistor = new Mock(); - var mockLogger = new Mock(); - - var handlerRef = new HandlerReference() - { - HandlerType = typeof(FakeAggregator), - MessageType = typeof(FakeMessage1) - }; - mockContainer.Setup(x => x.GetHandlerTypes(typeof(Aggregator))).Returns(new List { handlerRef }); - var fakeAggregator = new FakeAggregator - { - Time = new TimeSpan(0, 0, 0, 1) - }; - mockContainer.Setup(x => x.GetInstance(typeof(FakeAggregator))).Returns(fakeAggregator); - mockAggregatorPersistor.Setup(x => x.InsertData(It.IsAny(), It.IsAny())); - - - var aggregator = new AggregatorProcessor(mockAggregatorPersistor.Object, mockContainer.Object, typeof(FakeAggregator), mockLogger.Object); - - // Act - aggregator.ProcessMessage(JsonConvert.SerializeObject(new FakeMessage1(Guid.NewGuid()))); - - // Assert - mockAggregatorPersistor.Verify(x => x.GetData(typeof(FakeMessage1).AssemblyQualifiedName), Times.Never); - Assert.False(fakeAggregator.Executed); - } - - [Fact] - public void ShouldExecuteHandlerWithMessagesIfMessageCountIsEqualToOrGreaterThanBatchSize() - { - // Arrange - var mockContainer = new Mock(); - var mockAggregatorPersistor = new Mock(); - var mockLogger = new Mock(); - - var handlerRef = new HandlerReference() - { - HandlerType = typeof(FakeAggregator), - MessageType = typeof(FakeMessage1) - }; - mockContainer.Setup(x => x.GetHandlerTypes(typeof(Aggregator))).Returns(new List { handlerRef }); - var aggregator = new FakeAggregator(); - mockContainer.Setup(x => x.GetInstance(typeof(FakeAggregator))).Returns(aggregator); - mockAggregatorPersistor.Setup(x => x.InsertData(It.IsAny(), It.IsAny())); - - mockAggregatorPersistor.Setup(x => x.Count(typeof(FakeMessage1).AssemblyQualifiedName)).Returns(10); - mockAggregatorPersistor.Setup(x => x.GetData(typeof(FakeMessage1).AssemblyQualifiedName)).Returns(new List() - { - new FakeMessage1(Guid.NewGuid()) - }); - - var aggregatorProcessor = new AggregatorProcessor(mockAggregatorPersistor.Object, mockContainer.Object, typeof(FakeAggregator), mockLogger.Object); - - // Act - aggregatorProcessor.ProcessMessage(JsonConvert.SerializeObject(new FakeMessage1(Guid.NewGuid()))); - - // Assert - mockAggregatorPersistor.Verify(x => x.RemoveData(typeof(FakeMessage1).AssemblyQualifiedName, It.IsAny()), Times.Once); - - } - - [Fact] - public void ShouldRemoveProcessedMessagesFromPersistor() - { - // Arrange - var mockContainer = new Mock(); - var mockAggregatorPersistor = new Mock(); - var mockLogger = new Mock(); - - var handlerRef = new HandlerReference() - { - HandlerType = typeof(FakeAggregator), - MessageType = typeof(FakeMessage1) - }; - mockContainer.Setup(x => x.GetHandlerTypes(typeof(Aggregator))).Returns(new List { handlerRef }); - var aggregator = new FakeAggregator(); - mockContainer.Setup(x => x.GetInstance(typeof(FakeAggregator))).Returns(aggregator); - mockAggregatorPersistor.Setup(x => x.InsertData(It.IsAny(), It.IsAny())); - - mockAggregatorPersistor.Setup(x => x.Count(typeof(FakeMessage1).AssemblyQualifiedName)).Returns(10); - mockAggregatorPersistor.Setup(x => x.GetData(typeof(FakeMessage1).AssemblyQualifiedName)).Returns(new List - { - new FakeMessage1(Guid.NewGuid()) - }); - - var aggregatorProcessor = new AggregatorProcessor(mockAggregatorPersistor.Object, mockContainer.Object, typeof(FakeAggregator), mockLogger.Object); - - // Act - aggregatorProcessor.ProcessMessage(JsonConvert.SerializeObject(new FakeMessage1(Guid.NewGuid()){ Username = "Tim"})); - - // Assert - mockAggregatorPersistor.Verify(x => x.RemoveData(typeof(FakeMessage1).AssemblyQualifiedName, It.IsAny()), Times.Once); - } - - [Fact] - public void ShouldNotRemoveUnProcessedMessagesFromPersistor() - { - // Arrange - var mockContainer = new Mock(); - var mockAggregatorPersistor = new Mock(); - var mockLogger = new Mock(); - - var handlerRef = new HandlerReference() - { - HandlerType = typeof(FakeAggregator), - MessageType = typeof(FakeMessage1) - }; - mockContainer.Setup(x => x.GetHandlerTypes(typeof(Aggregator))).Returns(new List { handlerRef }); - var aggregator = new FakeAggregator(); - mockContainer.Setup(x => x.GetInstance(typeof(FakeAggregator))).Returns(aggregator); - mockAggregatorPersistor.Setup(x => x.InsertData(It.IsAny(), It.IsAny())); - - mockAggregatorPersistor.Setup(x => x.Count(typeof(FakeMessage1).AssemblyQualifiedName)).Returns(9); - mockAggregatorPersistor.Setup(x => x.GetData(typeof(FakeMessage1).AssemblyQualifiedName)).Returns(new List()); - - var aggregatorProcessor = new AggregatorProcessor(mockAggregatorPersistor.Object, mockContainer.Object, typeof(FakeAggregator), mockLogger.Object); - - // Act - aggregatorProcessor.ProcessMessage(JsonConvert.SerializeObject(new FakeMessage1(Guid.NewGuid()))); - - // Assert - mockAggregatorPersistor.Verify(x => x.RemoveData(typeof(FakeMessage1).AssemblyQualifiedName, It.IsAny()), Times.Never); - } - - [Fact] - public void ShouldUseBatchSizeFromAggregator() - { - // Arrange - var mockContainer = new Mock(); - var mockAggregatorPersistor = new Mock(); - var mockLogger = new Mock(); - - var handlerRef = new HandlerReference() - { - HandlerType = typeof(FakeAggregator), - MessageType = typeof(FakeMessage1) - }; - mockContainer.Setup(x => x.GetHandlerTypes(typeof(Aggregator))).Returns(new List { handlerRef }); - var aggregator = new FakeAggregator - { - Batch = 20 - }; - mockContainer.Setup(x => x.GetInstance(typeof(FakeAggregator))).Returns(aggregator); - mockAggregatorPersistor.Setup(x => x.InsertData(It.IsAny(), It.IsAny())); - - mockAggregatorPersistor.Setup(x => x.Count(typeof(FakeMessage1).AssemblyQualifiedName)).Returns(20); - mockAggregatorPersistor.Setup(x => x.GetData(typeof(FakeMessage1).AssemblyQualifiedName)).Returns(new List()); - - var aggregatorProcessor = new AggregatorProcessor(mockAggregatorPersistor.Object, mockContainer.Object, typeof(FakeAggregator), mockLogger.Object); - - // Act - aggregatorProcessor.ProcessMessage(JsonConvert.SerializeObject(new FakeMessage1(Guid.NewGuid()))); - - // Assert - mockAggregatorPersistor.Verify(x => x.GetData(typeof(FakeMessage1).AssemblyQualifiedName), Times.Once); - - } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.UnitTests/Aggregator/AggregatorTimerTests.cs b/src/ServiceConnect.UnitTests/Aggregator/AggregatorTimerTests.cs deleted file mode 100644 index 9a20386d8..000000000 --- a/src/ServiceConnect.UnitTests/Aggregator/AggregatorTimerTests.cs +++ /dev/null @@ -1,169 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; -using System.Linq; -using System.Threading; -using Moq; -using ServiceConnect.Core; -using ServiceConnect.Interfaces; -using ServiceConnect.UnitTests.Fakes.Messages; -using Xunit; - -namespace ServiceConnect.UnitTests.Aggregator -{ - public class AggregatorTimerTests - { - [Fact] - public void ShouldStartAggregatorTimerIfAggregatorTimeoutIsSet() - { - // Arrange - var mockContainer = new Mock(); - var mockAggregatorPersistor = new Mock(); - var mockAggregatorProcessor = new Mock(); - var mockConfiguration = new Mock(); - var mockConsumer = new Mock(); - - var handlerRef = new HandlerReference() - { - HandlerType = typeof(FakeAggregator), - MessageType = typeof(FakeMessage1) - }; - mockContainer.Setup(x => x.GetHandlerTypes()).Returns(new List { handlerRef }); - var timeout = new TimeSpan(0, 0, 0, 1); - mockContainer.Setup(x => x.GetInstance(typeof(FakeAggregator))).Returns(new FakeAggregator - { - Time = timeout - }); - mockConfiguration.Setup(x => x.GetAggregatorProcessor(It.IsAny(), mockContainer.Object, typeof(FakeAggregator))).Returns(mockAggregatorProcessor.Object); - mockConfiguration.Setup(x => x.GetAggregatorPersistor()).Returns(mockAggregatorPersistor.Object); - mockConfiguration.Setup(x => x.GetContainer()).Returns(mockContainer.Object); - mockConfiguration.Setup(x => x.AutoStartConsuming).Returns(true); - mockConfiguration.Setup(x => x.TransportSettings).Returns(new TransportSettings()); - mockConfiguration.Setup(x => x.GetConsumer()).Returns(mockConsumer.Object); - - // Act - new Bus(mockConfiguration.Object); - - // Assert - mockAggregatorProcessor.Verify(x => x.StartTimer(timeout), Times.Once); - } - - [Fact(Skip = "Need to rething this test. Should not rely on thread.sleep")] - public void TimerShouldRunEverySecond() - { - // Arrange - var mockPersistor = new Mock(); - var mockContainer = new Mock(); - var mockLogger = new Mock(); - - var timer = new AggregatorProcessor(mockPersistor.Object, mockContainer.Object, typeof (FakeAggregator), mockLogger.Object); - - var count = 0; - - mockPersistor.Setup(x => x.Count(typeof(FakeMessage1).AssemblyQualifiedName)).Returns(0).Callback(() => count++); - - // Act - timer.StartTimer(new TimeSpan(0, 0, 0, 1)); - Thread.Sleep(2100); - - // Assert - mockPersistor.Verify(x => x.Count(typeof (FakeMessage1).AssemblyQualifiedName), Times.Exactly(2)); - Assert.Equal(2, count); - - timer.Dispose(); - } - - [Fact(Skip = "Need to rething this test. Should not rely on thread.sleep")] - public void TimerShouldGetMessagesFromAggregatorAndExecuteHandler() - { - // Arrange - var mockPersistor = new Mock(); - var mockContainer = new Mock(); - var mockLogger = new Mock(); - - var timer = new AggregatorProcessor(mockPersistor.Object, mockContainer.Object, typeof(FakeAggregator), mockLogger.Object); - - mockPersistor.Setup(x => x.Count(typeof(FakeMessage1).AssemblyQualifiedName)).Returns(1); - var aggregator = new FakeAggregator(); - var message = new FakeMessage1(Guid.NewGuid()); - mockContainer.Setup(x => x.GetInstance(typeof (FakeAggregator))).Returns(aggregator); - mockPersistor.Setup(x => x.GetData(typeof(FakeMessage1).AssemblyQualifiedName)).Returns(new List{ message }); - - // Act - timer.StartTimer(new TimeSpan(0, 0, 0, 0, 50)); - Thread.Sleep(90); - - // Assert - mockPersistor.Verify(x => x.GetData(typeof(FakeMessage1).AssemblyQualifiedName), Times.Once); - Assert.Equal(1, aggregator.Messages.Count); - Assert.Equal(message, aggregator.Messages.First()); - timer.Dispose(); - } - - [Fact(Skip = "Need to rething this test. Should not rely on thread.sleep")] - public void TimerShouldRemoveAllProcessedMessagesFromPersistor() - { - // Arrange - var mockPersistor = new Mock(); - var mockContainer = new Mock(); - var mockLogger = new Mock(); - - var timer = new AggregatorProcessor(mockPersistor.Object, mockContainer.Object, typeof(FakeAggregator), mockLogger.Object); - - mockPersistor.Setup(x => x.Count(typeof(FakeMessage1).AssemblyQualifiedName)).Returns(1); - var aggregator = new FakeAggregator(); - var message = new FakeMessage1(Guid.NewGuid()); - mockContainer.Setup(x => x.GetInstance(typeof(FakeAggregator))).Returns(aggregator); - mockPersistor.Setup(x => x.GetData(typeof(FakeMessage1).AssemblyQualifiedName)).Returns(new List { message }); - - // Act - timer.StartTimer(new TimeSpan(0, 0, 0, 0, 50)); - Thread.Sleep(100); - - // Assert - mockPersistor.Verify(x => x.RemoveData(typeof(FakeMessage1).AssemblyQualifiedName, message.CorrelationId), Times.Once); - - timer.Dispose(); - } - - [Fact(Skip = "Need to rething this test. Should not rely on thread.sleep")] - public void TimerShouldReset() - { - // Arrange - var mockPersistor = new Mock(); - var mockContainer = new Mock(); - var mockLogger = new Mock(); - - var timer = new AggregatorProcessor(mockPersistor.Object, mockContainer.Object, typeof(FakeAggregator), mockLogger.Object); - - var count = 0; - - mockPersistor.Setup(x => x.Count(typeof(FakeMessage1).AssemblyQualifiedName)).Returns(0).Callback(() => count++); - - // Act - timer.StartTimer(new TimeSpan(0, 0, 0, 2)); - Thread.Sleep(1100); - timer.ResetTimer(); - Thread.Sleep(1000); - timer.Dispose(); - - // Assert - Assert.Equal(0, count); - } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.UnitTests/Builder/PersistenceRegistrationTests.cs b/src/ServiceConnect.UnitTests/Builder/PersistenceRegistrationTests.cs new file mode 100644 index 000000000..c7cbe441f --- /dev/null +++ b/src/ServiceConnect.UnitTests/Builder/PersistenceRegistrationTests.cs @@ -0,0 +1,52 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect; +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.InMemory; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.UnitTests.Builder; + +[Collection("Mongo Bson serial")] +public class PersistenceRegistrationTests +{ + [Fact] + public void UseInMemoryPersistence_RegistersDistinctFinderAndTimeoutStore() + { + var builder = new ServiceConnectBuilder(); + + builder.UseInMemoryPersistence(); + + Assert.Single(builder.AdditionalRegistrations); + var services = new ServiceCollection(); + builder.AdditionalRegistrations[0](services); + + Assert.Contains(services, sd => sd.ServiceType == typeof(InMemoryProcessManagerFinder)); + Assert.Contains(services, sd => sd.ServiceType == typeof(InMemoryTimeoutStore)); + Assert.Contains(services, sd => sd.ServiceType == typeof(IProcessManagerFinder)); + Assert.Contains(services, sd => sd.ServiceType == typeof(ITimeoutStore)); + Assert.DoesNotContain(services, sd => + sd.ServiceType == typeof(ITimeoutStore) && + sd.ImplementationType == typeof(InMemoryProcessManagerFinder)); + } + + [Fact] + public void UseMongoDbPersistence_RegistersDistinctFinderAndTimeoutStore() + { + var builder = new ServiceConnectBuilder(); + + builder.UseMongoDbPersistence(_ => { }); + + Assert.Single(builder.AdditionalRegistrations); + var services = new ServiceCollection(); + builder.AdditionalRegistrations[0](services); + + Assert.Contains(services, sd => sd.ServiceType == typeof(MongoDbProcessManagerFinder)); + Assert.Contains(services, sd => sd.ServiceType == typeof(MongoDbTimeoutStore)); + Assert.Contains(services, sd => sd.ServiceType == typeof(IProcessManagerFinder)); + Assert.Contains(services, sd => sd.ServiceType == typeof(ITimeoutStore)); + Assert.DoesNotContain(services, sd => + sd.ServiceType == typeof(ITimeoutStore) && + sd.ImplementationType == typeof(MongoDbProcessManagerFinder)); + } +} diff --git a/src/ServiceConnect.UnitTests/Builder/ServiceCollectionExtensionsTests.cs b/src/ServiceConnect.UnitTests/Builder/ServiceCollectionExtensionsTests.cs new file mode 100644 index 000000000..9ceea8f96 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Builder/ServiceCollectionExtensionsTests.cs @@ -0,0 +1,868 @@ +using System.Reflection; +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging; +using Moq; +using ServiceConnect; +using ServiceConnect.DependencyInjection; +using ServiceConnect.Interfaces; +using ServiceConnect.Services; +using ServiceConnect.Services.Processors; +using Xunit; + +namespace ServiceConnect.UnitTests.Builder; + +public class ServiceCollectionExtensionsTests +{ + private static IServiceCollection CreateServices() + { + var services = new ServiceCollection(); + // SendMessagePipeline depends on IProducer + services.AddSingleton(new Mock().Object); + // Bus depends on ILogger + services.AddLogging(); + return services; + } + + [Fact] + public void AddServiceConnect_RegistersIBus() + { + var services = CreateServices(); + + services.AddServiceConnect(b => b + .ConfigureQueues(q => q.QueueName = "test") + .ConfigureBus(c => c.ScanForMessageHandlers = false)); + + var provider = services.BuildServiceProvider(); + var bus = provider.GetService(); + + Assert.NotNull(bus); + } + + [Fact] + public void AddServiceConnect_InvokesBuilderCallback() + { + var services = CreateServices(); + var callbackInvoked = false; + + services.AddServiceConnect(b => + { + callbackInvoked = true; + b.ConfigureQueues(q => q.QueueName = "callback-queue"); + b.ConfigureBus(c => c.ScanForMessageHandlers = false); + }); + + var provider = services.BuildServiceProvider(); + var queueConfig = provider.GetRequiredService(); + + Assert.True(callbackInvoked); + Assert.Equal("callback-queue", queueConfig.QueueName); + } + + [Fact] + public void AddServiceConnect_RegistersCoreServices() + { + var services = CreateServices(); + + services.AddServiceConnect(b => b + .ConfigureQueues(q => q.QueueName = "test") + .ConfigureBus(c => c.ScanForMessageHandlers = false)); + + var provider = services.BuildServiceProvider(); + + Assert.NotNull(provider.GetService()); + Assert.NotNull(provider.GetService()); + Assert.NotNull(provider.GetService()); + Assert.NotNull(provider.GetService()); + } + + [Fact] + public void AddServiceConnect_MapsPublicAndInternalReplyManagerContracts_ToSameSingleton() + { + var services = CreateServices(); + + services.AddServiceConnect(b => b + .ConfigureQueues(q => q.QueueName = "test") + .ConfigureBus(c => c.ScanForMessageHandlers = false)); + + var provider = services.BuildServiceProvider(); + var publicContract = provider.GetRequiredService(); + var internalContract = provider.GetRequiredService(); + + Assert.Same(publicContract, internalContract); + } + + [Fact] + public void AddServiceConnect_ThrowsAtConfigTime_WhenUserRegistersPartialRequestReplyManager() + { + // A caller who replaces IRequestReplyManager with a type that does NOT also + // implement IReplyStatusRequestReplyManager would cause a split-brain: outgoing + // requests go through the custom impl while reply tracking still goes through + // the stock RequestReplyManager, silently dropping replies. + // AddServiceConnect must detect this and throw immediately at configuration time. + var services = CreateServices(); + + services.AddSingleton(); + + var exception = Assert.Throws(() => + services.AddServiceConnect(b => b + .ConfigureQueues(q => q.QueueName = "test") + .ConfigureBus(c => c.ScanForMessageHandlers = false))); + + Assert.Contains(nameof(IRequestReplyManager), exception.Message); + Assert.Contains(nameof(IReplyStatusRequestReplyManager), exception.Message); + } + + [Fact] + public void AddServiceConnect_AllowsOverriddenRequestReplyManager_WhenItAlsoImplementsReplyStatusContract() + { + // A caller who replaces IRequestReplyManager with a full impl (also implementing + // IReplyStatusRequestReplyManager) is supported. Both interfaces must resolve to + // the same instance so the dispatcher path works correctly. + var services = CreateServices(); + + services.AddSingleton(); + services.AddServiceConnect(b => b + .ConfigureQueues(q => q.QueueName = "test") + .ConfigureBus(c => c.ScanForMessageHandlers = false)); + + var provider = services.BuildServiceProvider(); + + Assert.IsType(provider.GetRequiredService()); + Assert.NotNull(provider.GetService()); + Assert.Same( + provider.GetRequiredService(), + provider.GetRequiredService()); + } + + [Fact] + public void ServiceCollectionExtensions_DefinesRegistrationHelpers() + { + string[] expectedHelpers = + [ + "RegisterConfiguration", + "RegisterCoreServices", + "RegisterProcessors", + "RegisterHandlers", + "RegisterBus" + ]; + + foreach (var helper in expectedHelpers) + { + var method = typeof(ServiceCollectionExtensions).GetMethod( + helper, + BindingFlags.Static | BindingFlags.NonPublic); + + Assert.NotNull(method); + Assert.Equal(typeof(void), method!.ReturnType); + } + } + + [Fact] + public void AddServiceConnect_ThrowsWhenInboundMiddlewareIsNotRegistered() + { + // Inbound middleware referenced by the pipeline must be registered in DI, + // or it will fail to resolve at dispatch time. We surface this at startup. + var services = CreateServices(); + + var exception = Assert.Throws(() => + services.AddServiceConnect(b => b + .ConfigureQueues(q => q.QueueName = "test") + .ConfigureBus(c => c.ScanForMessageHandlers = false) + .AddMessageProcessingMiddleware())); + + Assert.Contains(nameof(TestInboundMiddleware), exception.Message); + } + + [Fact] + public void AddServiceConnect_ThrowsWhenBeforeConsumingFilterIsNotRegistered() + { + var services = CreateServices(); + + var exception = Assert.Throws(() => + services.AddServiceConnect(b => b + .ConfigureQueues(q => q.QueueName = "test") + .ConfigureBus(c => c.ScanForMessageHandlers = false) + .AddBeforeConsumingFilter())); + + Assert.Contains(nameof(TestInboundFilter), exception.Message); + } + + [Fact] + public void AddServiceConnect_ThrowsWhenOutgoingFilterIsNotRegistered() + { + var services = CreateServices(); + + var exception = Assert.Throws(() => + services.AddServiceConnect(b => b + .ConfigureQueues(q => q.QueueName = "test") + .ConfigureBus(c => c.ScanForMessageHandlers = false) + .AddOutgoingFilter())); + + Assert.Contains(nameof(TestInboundFilter), exception.Message); + } + + [Fact] + public void AddServiceConnect_AcceptsScopedInboundMiddleware() + { + // Unlike send middleware (which must be singleton because it runs in the + // producer scope), inbound middleware may be registered with any lifetime + // because it resolves from the per-message scope. + var services = CreateServices(); + services.AddScoped(); + + services.AddServiceConnect(b => b + .ConfigureQueues(q => q.QueueName = "test") + .ConfigureBus(c => c.ScanForMessageHandlers = false) + .AddMessageProcessingMiddleware()); + + // Did not throw — registration accepted. + var provider = services.BuildServiceProvider(); + Assert.NotNull(provider.GetService()); + } + + [Fact] + public void AddServiceConnect_AcceptsTransientBeforeConsumingFilter() + { + var services = CreateServices(); + services.AddTransient(); + + services.AddServiceConnect(b => b + .ConfigureQueues(q => q.QueueName = "test") + .ConfigureBus(c => c.ScanForMessageHandlers = false) + .AddBeforeConsumingFilter()); + + var provider = services.BuildServiceProvider(); + Assert.NotNull(provider.GetService()); + } + + [Fact] + public void RegisterHandlerType_PreRegisteredTransient_DoesNotAddDuplicate() + { + // If the caller pre-registered the handler transient, auto-registration must + // not add a second descriptor — duplicates cause HandlerProcessor to dispatch + // the same message twice because GetServices(...) yields both instances. + var services = new ServiceCollection(); + services.AddTransient, H5Handler>(); + + InvokeRegisterHandlerType(services, typeof(H5Handler), typeof(H5Msg)); + + Assert.Single(services, d => d.ServiceType == typeof(IMessageHandler)); + } + + [Fact] + public void RegisterHandlerType_PreRegisteredScoped_DoesNotAddDuplicate() + { + var services = new ServiceCollection(); + services.AddScoped, H5Handler>(); + + InvokeRegisterHandlerType(services, typeof(H5Handler), typeof(H5Msg)); + + Assert.Single(services, d => d.ServiceType == typeof(IMessageHandler)); + } + + [Fact] + public void RegisterHandlerType_NoPreRegistration_AddsAsTransient() + { + var services = new ServiceCollection(); + + InvokeRegisterHandlerType(services, typeof(H5Handler), typeof(H5Msg)); + + var descriptor = Assert.Single(services, d => d.ServiceType == typeof(IMessageHandler)); + Assert.Equal(ServiceLifetime.Transient, descriptor.Lifetime); + Assert.Equal(typeof(H5Handler), descriptor.ImplementationType); + } + + [Fact] + public void RegisterHandlerType_PreRegisteredAggregator_DoesNotAddDuplicate() + { + // Aggregators register against the base Aggregator generic — the same + // dedup rule applies there. + var services = new ServiceCollection(); + services.AddScoped, H5Aggregator>(); + + InvokeRegisterHandlerType(services, typeof(H5Aggregator), typeof(H5Msg)); + + Assert.Single(services, d => d.ServiceType == typeof(Aggregator)); + } + + [Fact] + public void AddServiceConnect_WithPreRegisteredHandler_ResolvesSingleInstance() + { + // End-to-end guard: scanning finds H5Handler, caller also pre-registered it — + // after AddServiceConnect the container must resolve exactly one instance for + // IMessageHandler, otherwise the dispatcher would invoke the handler twice. + var services = CreateServices(); + services.AddTransient, H5Handler>(); + + services.AddServiceConnect(b => b + .ConfigureQueues(q => q.QueueName = "test") + .ScanAssemblies(typeof(H5Handler).Assembly)); + + using var provider = services.BuildServiceProvider(); + var handlers = provider.GetServices>().ToList(); + Assert.Single(handlers); + Assert.IsType(handlers[0]); + } + + private static void InvokeRegisterHandlerType(IServiceCollection services, Type handlerType, Type messageType) + => InvokeRegisterHandlerType(services, handlerType, messageType, HandlerInterfaceKind.MessageHandler); + + private static void InvokeRegisterHandlerType( + IServiceCollection services, + Type handlerType, + Type messageType, + HandlerInterfaceKind kind) + { + // Snapshot pre-existing service types so the user-pre-registration guard fires correctly. + var preExisting = services.Select(d => d.ServiceType).ToHashSet(); + InvokeRegisterHandlerType(services, handlerType, messageType, kind, preExisting); + } + + private static void InvokeRegisterHandlerType( + IServiceCollection services, + Type handlerType, + Type messageType, + HandlerInterfaceKind kind, + IReadOnlySet? preExistingServiceTypes) + { + var method = typeof(ServiceCollectionExtensions).GetMethod( + "RegisterHandlerType", + BindingFlags.Static | BindingFlags.NonPublic); + Assert.NotNull(method); + var handlerRef = new HandlerReference { MessageType = messageType, HandlerType = handlerType, InterfaceKind = kind }; + method!.Invoke(null, [services, handlerRef, preExistingServiceTypes]); + } + + // --- Multi-registration regression tests --- + + [Fact] + public void RegisterHandlerType_DualInterfaceHandler_RegistersBothMessageHandlerAndProcessHandler() + { + // A class implementing both IMessageHandler and IProcessHandler produces + // two HandlerReferences (one per interface kind). Both must be registered in DI. + var services = new ServiceCollection(); + // Shared empty snapshot: both refs are scan-discovered in the same scan loop. + var snapshot = services.Select(d => d.ServiceType).ToHashSet(); + + InvokeRegisterHandlerType(services, typeof(DualInterfaceHandler), typeof(DualMsg), HandlerInterfaceKind.MessageHandler, snapshot); + InvokeRegisterHandlerType(services, typeof(DualInterfaceHandler), typeof(DualMsg), HandlerInterfaceKind.ProcessHandler, snapshot); + + Assert.Contains(services, d => d.ServiceType == typeof(IMessageHandler) + && d.ImplementationType == typeof(DualInterfaceHandler)); + Assert.Contains(services, d => d.ServiceType == typeof(IProcessHandler) + && d.ImplementationType == typeof(DualInterfaceHandler)); + } + + [Fact] + public void RegisterHandlerType_TwoDistinctHandlersForSameMessage_RegistersBoth() + { + // Two concrete classes that both implement IMessageHandler must each get + // their own descriptor. HandlerProcessor resolves via GetServices, so both must + // be present for both to be dispatched. + var services = new ServiceCollection(); + // Shared empty snapshot: both handlers are scan-discovered in the same scan loop, + // so neither was pre-registered by the caller. + var snapshot = services.Select(d => d.ServiceType).ToHashSet(); + + InvokeRegisterHandlerType(services, typeof(MultiHandlerA), typeof(MultiMsg), HandlerInterfaceKind.MessageHandler, snapshot); + InvokeRegisterHandlerType(services, typeof(MultiHandlerB), typeof(MultiMsg), HandlerInterfaceKind.MessageHandler, snapshot); + + var descriptors = services.Where(d => d.ServiceType == typeof(IMessageHandler)).ToList(); + Assert.Equal(2, descriptors.Count); + Assert.Contains(descriptors, d => d.ImplementationType == typeof(MultiHandlerA)); + Assert.Contains(descriptors, d => d.ImplementationType == typeof(MultiHandlerB)); + } + + [Fact] + public void RegisterHandlerType_UserPreRegistration_SuppressesScanDiscoveredHandler() + { + // When the caller pre-registers a handler for IMessageHandler, a scan-discovered + // handler for the same message type must not be added. The user registration is authoritative. + var services = new ServiceCollection(); + services.AddTransient, PreRegUserHandler>(); + + // Snapshot taken after the user pre-registration and before the scan loop: + // IMessageHandler is already present, so the scan-discovered handler must be suppressed. + InvokeRegisterHandlerType(services, typeof(PreRegOtherHandler), typeof(PreRegMsg), HandlerInterfaceKind.MessageHandler); + + var descriptors = services.Where(d => d.ServiceType == typeof(IMessageHandler)).ToList(); + Assert.Single(descriptors); + Assert.Equal(typeof(PreRegUserHandler), descriptors[0].ImplementationType); + } + + [Fact] + public void RegisterHandlerType_PreRegisteredProcessHandler_DoesNotAddDuplicate() + { + // User pre-registers a process handler; the scan-discovered handler for the + // same IProcessHandler service type must be suppressed. + var services = new ServiceCollection(); + services.AddTransient, PreRegUserProcessHandler>(); + + InvokeRegisterHandlerType(services, typeof(PreRegOtherProcessHandler), typeof(PreRegProcessMsg), HandlerInterfaceKind.ProcessHandler); + + var descriptors = services.Where(d => d.ServiceType == typeof(IProcessHandler)).ToList(); + Assert.Single(descriptors); + Assert.Equal(typeof(PreRegUserProcessHandler), descriptors[0].ImplementationType); + } + + [Fact] + public void RegisterHandlerType_PreRegisteredStreamHandler_DoesNotAddDuplicate() + { + // User pre-registers a stream handler; the scan-discovered handler for the + // same IStreamHandler service type must be suppressed. + var services = new ServiceCollection(); + services.AddTransient, PreRegUserStreamHandler>(); + + InvokeRegisterHandlerType(services, typeof(PreRegOtherStreamHandler), typeof(PreRegStreamMsg), HandlerInterfaceKind.StreamHandler); + + var descriptors = services.Where(d => d.ServiceType == typeof(IStreamHandler)).ToList(); + Assert.Single(descriptors); + Assert.Equal(typeof(PreRegUserStreamHandler), descriptors[0].ImplementationType); + } + + [Fact] + public void RegisterHandlerType_PreRegisteredAggregatorByKind_DoesNotAddDuplicate() + { + // User pre-registers an aggregator via the Aggregator base type; the scan-discovered + // subclass for the same Aggregator service type must be suppressed. + var services = new ServiceCollection(); + services.AddTransient, PreRegUserAggregator>(); + + InvokeRegisterHandlerType(services, typeof(PreRegOtherAggregator), typeof(PreRegAggMsg), HandlerInterfaceKind.Aggregator); + + var descriptors = services.Where(d => d.ServiceType == typeof(Aggregator)).ToList(); + Assert.Single(descriptors); + Assert.Equal(typeof(PreRegUserAggregator), descriptors[0].ImplementationType); + } + + [Fact] + public void AddServiceConnect_ScansExplicitAssembliesEvenWhenDiscoveryDisabled() + { + // ScanAssemblies(...) must be honoured even when ScanForMessageHandlers=false. + // The explicit list represents "scan exactly these assemblies"; the global flag + // must not silently override it. + var services = new ServiceCollection(); + services.AddServiceConnect(b => + { + b.ConfigureQueues(q => q.QueueName = "test"); + b.ConfigureBus(c => c.ScanForMessageHandlers = false); + b.ScanAssemblies(typeof(TestHandlerFixture).Assembly); + }); + + using var provider = services.BuildServiceProvider(); + var handler = provider.GetService>(); + Assert.NotNull(handler); + } + + [Fact] + public void AddServiceConnect_DetectsFactoryRegisteredSingletonHandlers() + { + // Pre-registering a handler via a factory singleton must prevent the scanner + // from adding a second transient descriptor via TryAddEnumerable. + var services = new ServiceCollection(); + services.AddSingleton>( + _ => new TestHandlerFixture.SampleHandler()); + services.AddServiceConnect(b => b + .ConfigureQueues(q => q.QueueName = "test") + .ScanAssemblies(typeof(TestHandlerFixture).Assembly)); + + using var provider = services.BuildServiceProvider(); + var handlers = provider.GetServices>().ToList(); + Assert.Single(handlers); + } + + [Fact] + public void AddServiceConnect_UserFactoryRegistration_SuppressesScannerForSameType() + { + // Semantic lock-in for the "user registration is authoritative" guard in + // RegisterHandlerType: if ANY descriptor answers IMessageHandler before + // AddServiceConnect runs (regardless of registration form — factory, instance, + // or type), the scanner must not add a second transient descriptor. + // This is intentional: callers who want both a manual and a scan-discovered + // handler for the same message type must register all of them explicitly. + var services = new ServiceCollection(); + // User factory-registers ONE handler for SampleMessage. + services.AddSingleton>( + _ => new TestHandlerFixture.SampleHandler()); + + // Scanner would otherwise find TestHandlerFixture.SampleHandler too. + services.AddServiceConnect(b => b + .ConfigureQueues(q => q.QueueName = "test") + .ScanAssemblies(typeof(TestHandlerFixture).Assembly)); + + using var provider = services.BuildServiceProvider(); + var handlers = provider.GetServices>().ToList(); + + // User registration is authoritative — no duplicate from scanner. + Assert.Single(handlers); + } + + [Fact] + public void AddServiceConnect_MissingConfigureQueues_Throws() + { + // QueueName defaults to the empty string when the user never calls ConfigureQueues. + // AddServiceConnect surfaces an actionable error at startup so the failure does not + // surface only at broker-connect time as an opaque AMQP error. + var services = new ServiceCollection(); + + var ex = Assert.Throws(() => + services.AddServiceConnect(b => { /* no ConfigureQueues */ })); + + Assert.Contains("QueueName", ex.Message); + } + + [Fact] + public void AddServiceConnect_ThrowsWhenSendMiddlewareIsNotSingleton() + { + var services = CreateServices(); + services.AddTransient(); + + var exception = Assert.Throws(() => + services.AddServiceConnect(b => b + .ConfigureQueues(q => q.QueueName = "test") + .ConfigureBus(c => c.ScanForMessageHandlers = false) + .AddSendMessageMiddleware())); + + Assert.Contains(nameof(TestSendMiddleware), exception.Message); + Assert.Contains("singleton", exception.Message, StringComparison.OrdinalIgnoreCase); + } + + [Fact] + public void AddServiceConnect_ThrowsWhenDirectDiSendMiddlewareIsTransient() + { + // Middleware registered directly via DI against the ISendMessageMiddleware interface + // (rather than through AddSendMessageMiddleware<>) must also be rejected when non-singleton. + // The pipeline caches instances at first use, so transient registrations would be silently + // promoted to singleton lifetime, risking cross-request state leaks. + var services = CreateServices(); + services.AddTransient(); + + var exception = Assert.Throws(() => + services.AddServiceConnect(b => b + .ConfigureQueues(q => q.QueueName = "test") + .ConfigureBus(c => c.ScanForMessageHandlers = false))); + + Assert.Contains(nameof(TestSendMiddleware), exception.Message); + Assert.Contains("singleton", exception.Message, StringComparison.OrdinalIgnoreCase); + } + + [Fact] + public void AddServiceConnect_RegistersFourDistinctIHandlerRegistryInstances() + { + // GetServices() must return exactly four items — one per concrete + // registry type — and each must be a distinct object of a different concrete type. + var services = CreateServices(); + services.AddServiceConnect(b => b + .ConfigureQueues(q => q.QueueName = "test") + .ConfigureBus(c => c.ScanForMessageHandlers = false)); + + using var provider = services.BuildServiceProvider(); + var registries = provider.GetServices().ToList(); + + Assert.Equal(4, registries.Count); + Assert.Contains(registries, r => r is ProcessManagerHandlerRegistry); + Assert.Contains(registries, r => r is MessageHandlerRegistry); + Assert.Contains(registries, r => r is StreamHandlerRegistry); + Assert.Contains(registries, r => r is AggregatorRegistry); + + // All four are distinct instances. + Assert.Equal(4, registries.Select(r => r.GetType()).Distinct().Count()); + } + + [Fact] + public void AddServiceConnect_IHandlerRegistry_ForwardsToConcreteRegistration() + { + // Each IHandlerRegistry descriptor forwards to the concrete singleton, so resolving + // ProcessManagerHandlerRegistry directly returns the same instance as the IHandlerRegistry + // entry for that type, rather than a separately constructed duplicate. + var services = CreateServices(); + services.AddServiceConnect(b => b + .ConfigureQueues(q => q.QueueName = "test") + .ConfigureBus(c => c.ScanForMessageHandlers = false)); + + using var provider = services.BuildServiceProvider(); + + var viaConcrete = provider.GetRequiredService(); + var viaInterface = provider.GetServices().OfType().Single(); + Assert.Same(viaConcrete, viaInterface); + + var viaConcreteMsg = provider.GetRequiredService(); + var viaInterfaceMsg = provider.GetServices().OfType().Single(); + Assert.Same(viaConcreteMsg, viaInterfaceMsg); + } + + [Fact] + public void AddServiceConnect_CalledTwice_Throws() + { + // The re-entry guard must prevent a second AddServiceConnect call. Without it, + // the four IHandlerRegistry factory descriptors would be duplicated in the + // container, making GetServices() return 8 entries. + var services = CreateServices(); + services.AddServiceConnect(b => b + .ConfigureQueues(q => q.QueueName = "test") + .ConfigureBus(c => c.ScanForMessageHandlers = false)); + + Assert.Throws(() => + services.AddServiceConnect(b => b + .ConfigureQueues(q => q.QueueName = "test2") + .ConfigureBus(c => c.ScanForMessageHandlers = false))); + } +} + +public sealed class H5Msg : Message +{ + public H5Msg() : base(Guid.NewGuid()) { } +} + +public sealed class H5Handler : IMessageHandler +{ + public Task HandleAsync(H5Msg message, IConsumeContext context, CancellationToken cancellationToken = default) => Task.CompletedTask; +} + +public sealed class H5Aggregator : Aggregator +{ + public override int BatchSize() => 5; + public override TimeSpan Timeout() => TimeSpan.FromMilliseconds(100); + public override Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default) => Task.CompletedTask; +} + +/// +/// Shared fixture providing and for +/// ServiceCollectionExtensions tests that scan the unit-test assembly. +/// +public static class TestHandlerFixture +{ + public sealed class SampleMessage : Message + { + public SampleMessage() : base(Guid.NewGuid()) { } + } + + public sealed class SampleHandler : IMessageHandler + { + public Task HandleAsync(SampleMessage message, IConsumeContext context, CancellationToken cancellationToken = default) => Task.CompletedTask; + } +} + +file sealed class TestInboundMiddleware : IMessageProcessingMiddleware +{ + public Task ProcessAsync( + ReadOnlyMemory messageBytes, + Type messageType, + object message, + IDictionary headers, + Envelope envelope, + MessageProcessingDelegate next, + CancellationToken cancellationToken = default) => + next(messageBytes, messageType, message, headers, envelope, cancellationToken); +} + +file sealed class TestInboundFilter : IFilter +{ + public Task ProcessAsync(Envelope envelope, CancellationToken cancellationToken = default) => + Task.FromResult(FilterAction.Continue); +} + +file sealed class TestSendMiddleware : ISendMessageMiddleware +{ + public Task ProcessAsync( + SendContext context, + SendMessageDelegate next, + CancellationToken cancellationToken) => + next(context, cancellationToken); +} + +file sealed class OverrideRequestReplyManager : IRequestReplyManager +{ + public Task SendRequestAsync( + TRequest message, + IDictionary headers, + ServiceConnect.Interfaces.Options.RequestOptions options, + CancellationToken cancellationToken = default) + where TRequest : Message + where TReply : Message => + throw new NotSupportedException(); + + public Task> SendRequestMultiAsync( + TRequest message, + IDictionary headers, + ServiceConnect.Interfaces.Options.RequestOptions options, + CancellationToken cancellationToken = default) + where TRequest : Message + where TReply : Message => + throw new NotSupportedException(); + + public Task PublishRequestAsync( + TRequest message, + IDictionary headers, + ServiceConnect.Interfaces.Options.RequestOptions options, + Action onReply, + CancellationToken cancellationToken = default) + where TRequest : Message + where TReply : Message => + throw new NotSupportedException(); + + public void ProcessReply(string messageId, ReadOnlyMemory messageBytes, Type type) => + throw new NotSupportedException(); +} + +file sealed class FullOverrideRequestReplyManager : IRequestReplyManager, IReplyStatusRequestReplyManager +{ + public Task SendRequestAsync( + TRequest message, + IDictionary headers, + ServiceConnect.Interfaces.Options.RequestOptions options, + CancellationToken cancellationToken = default) + where TRequest : Message + where TReply : Message => + throw new NotSupportedException(); + + public Task> SendRequestMultiAsync( + TRequest message, + IDictionary headers, + ServiceConnect.Interfaces.Options.RequestOptions options, + CancellationToken cancellationToken = default) + where TRequest : Message + where TReply : Message => + throw new NotSupportedException(); + + public Task PublishRequestAsync( + TRequest message, + IDictionary headers, + ServiceConnect.Interfaces.Options.RequestOptions options, + Action onReply, + CancellationToken cancellationToken = default) + where TRequest : Message + where TReply : Message => + throw new NotSupportedException(); + + public void ProcessReply(string messageId, ReadOnlyMemory messageBytes, Type type) => + throw new NotSupportedException(); + + public bool TryProcessReply(string messageId, ReadOnlyMemory messageBytes, Type type) => + throw new NotSupportedException(); + + public bool IsTrackedRequest(string messageId) => + throw new NotSupportedException(); +} + +// --- Fixture types for multi-registration tests --- + +public sealed class DualMsg : Message +{ + public DualMsg() : base(Guid.NewGuid()) { } +} + +public sealed class DualData : IProcessManagerData +{ + public Guid CorrelationId { get; set; } +} + +public sealed class DualInterfaceHandler + : IMessageHandler, IProcessHandler +{ + public Task HandleAsync(DualMsg message, IConsumeContext context, CancellationToken cancellationToken = default) + => Task.CompletedTask; + + public Task HandleAsync(DualMsg message, DualData data, IConsumeContext context, CancellationToken cancellationToken = default) + => Task.CompletedTask; +} + +public sealed class MultiMsg : Message +{ + public MultiMsg() : base(Guid.NewGuid()) { } +} + +public sealed class MultiHandlerA : IMessageHandler +{ + public Task HandleAsync(MultiMsg message, IConsumeContext context, CancellationToken cancellationToken = default) + => Task.CompletedTask; +} + +public sealed class MultiHandlerB : IMessageHandler +{ + public Task HandleAsync(MultiMsg message, IConsumeContext context, CancellationToken cancellationToken = default) + => Task.CompletedTask; +} + +public sealed class PreRegMsg : Message +{ + public PreRegMsg() : base(Guid.NewGuid()) { } +} + +public sealed class PreRegUserHandler : IMessageHandler +{ + public Task HandleAsync(PreRegMsg message, IConsumeContext context, CancellationToken cancellationToken = default) + => Task.CompletedTask; +} + +public sealed class PreRegOtherHandler : IMessageHandler +{ + public Task HandleAsync(PreRegMsg message, IConsumeContext context, CancellationToken cancellationToken = default) + => Task.CompletedTask; +} + +// --- Fixture types for process-handler pre-registration suppression tests --- + +public sealed class PreRegProcessMsg : Message +{ + public PreRegProcessMsg() : base(Guid.NewGuid()) { } +} + +public sealed class PreRegProcessData : IProcessManagerData +{ + public Guid CorrelationId { get; set; } +} + +public sealed class PreRegUserProcessHandler : IProcessHandler +{ + public Task HandleAsync(PreRegProcessMsg message, PreRegProcessData data, IConsumeContext context, CancellationToken cancellationToken = default) + => Task.CompletedTask; +} + +public sealed class PreRegOtherProcessHandler : IProcessHandler +{ + public Task HandleAsync(PreRegProcessMsg message, PreRegProcessData data, IConsumeContext context, CancellationToken cancellationToken = default) + => Task.CompletedTask; +} + +// --- Fixture types for stream-handler pre-registration suppression tests --- + +public sealed class PreRegStreamMsg : Message +{ + public PreRegStreamMsg() : base(Guid.NewGuid()) { } +} + +public sealed class PreRegUserStreamHandler : IStreamHandler +{ + public Task ExecuteAsync(PreRegStreamMsg message, IMessageBusReadStream stream, CancellationToken cancellationToken = default) + => Task.CompletedTask; +} + +public sealed class PreRegOtherStreamHandler : IStreamHandler +{ + public Task ExecuteAsync(PreRegStreamMsg message, IMessageBusReadStream stream, CancellationToken cancellationToken = default) + => Task.CompletedTask; +} + +// --- Fixture types for aggregator pre-registration suppression tests --- + +public sealed class PreRegAggMsg : Message +{ + public PreRegAggMsg() : base(Guid.NewGuid()) { } +} + +public sealed class PreRegUserAggregator : Aggregator +{ + public override int BatchSize() => 5; + public override TimeSpan Timeout() => TimeSpan.FromMilliseconds(100); + public override Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default) + => Task.CompletedTask; +} + +public sealed class PreRegOtherAggregator : Aggregator +{ + public override int BatchSize() => 5; + public override TimeSpan Timeout() => TimeSpan.FromMilliseconds(100); + public override Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default) + => Task.CompletedTask; +} diff --git a/src/ServiceConnect.UnitTests/Builder/ServiceConnectBuilderPlaintextWarningTests.cs b/src/ServiceConnect.UnitTests/Builder/ServiceConnectBuilderPlaintextWarningTests.cs new file mode 100644 index 000000000..a9519431d --- /dev/null +++ b/src/ServiceConnect.UnitTests/Builder/ServiceConnectBuilderPlaintextWarningTests.cs @@ -0,0 +1,121 @@ +using Microsoft.Extensions.Logging; +using Microsoft.Extensions.Logging.Testing; +using ServiceConnect.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.Builder; + +/// +/// Verifies the adapter-independent plaintext-against-non-loopback-host warning emitted by +/// . +/// +public class ServiceConnectBuilderPlaintextWarningTests +{ + private static FakeLogger MakeLogger() => new(); + + // TLS off + loopback variants — no warning expected + [Theory] + [InlineData("localhost")] + [InlineData("LOCALHOST")] + [InlineData("127.0.0.1")] + [InlineData("::1")] + [InlineData("[::1]")] + public void WarnIfPlaintext_SslOff_LoopbackHost_NoWarning(string host) + { + var transport = new TransportConfiguration { Host = host, SslEnabled = false }; + var logger = MakeLogger(); + + ServiceConnectBuilder.WarnIfPlaintextOnNonLoopbackHost(transport, logger); + + Assert.Empty(logger.Collector.GetSnapshot()); + } + + // TLS off + non-loopback — warning expected + [Theory] + [InlineData("rabbitmq")] + [InlineData("10.0.0.5")] + [InlineData("rabbit.example.com")] + [InlineData("192.168.1.10")] + public void WarnIfPlaintext_SslOff_NonLoopbackHost_WarningFires(string host) + { + var transport = new TransportConfiguration { Host = host, SslEnabled = false }; + var logger = MakeLogger(); + + ServiceConnectBuilder.WarnIfPlaintextOnNonLoopbackHost(transport, logger); + + var records = logger.Collector.GetSnapshot(); + Assert.Single(records); + Assert.Equal(LogLevel.Warning, records[0].Level); + Assert.Equal(ServiceConnectLog.PlaintextOnNonLoopbackHostEventId, records[0].Id.Id); + Assert.Contains(host, records[0].Message); + } + + [Fact] + public void WarnIfPlaintext_SslOn_NonLoopbackHost_NoWarning() + { + var transport = new TransportConfiguration + { + Host = "rabbitmq", + SslEnabled = true, + ServerName = "rabbitmq", + }; + var logger = MakeLogger(); + + ServiceConnectBuilder.WarnIfPlaintextOnNonLoopbackHost(transport, logger); + + Assert.Empty(logger.Collector.GetSnapshot()); + } + + [Fact] + public void WarnIfPlaintext_SuppressPlaintextWarning_NonLoopbackHost_NoWarning() + { + // Docker Compose deployments where plaintext is intentional can set + // SuppressPlaintextWarning=true to silence the noise. + var transport = new TransportConfiguration + { + Host = "rabbitmq", + SslEnabled = false, + SuppressPlaintextWarning = true, + }; + var logger = MakeLogger(); + + ServiceConnectBuilder.WarnIfPlaintextOnNonLoopbackHost(transport, logger); + + Assert.Empty(logger.Collector.GetSnapshot()); + } + + [Fact] + public void WarnIfPlaintext_SslOff_ClusterList_WarnsOnFirstNonLoopback() + { + // Mixed host list: first entry is loopback, second is non-loopback. + // Exactly one warning, containing the non-loopback entry. + var transport = new TransportConfiguration { Host = "localhost,rabbitmq", SslEnabled = false }; + var logger = MakeLogger(); + + ServiceConnectBuilder.WarnIfPlaintextOnNonLoopbackHost(transport, logger); + + var records = logger.Collector.GetSnapshot(); + Assert.Single(records); + Assert.Equal(LogLevel.Warning, records[0].Level); + Assert.Contains("rabbitmq", records[0].Message); + } + + [Fact] + public void WarnIfPlaintext_SslOff_SuppressPlaintextWarning_ClusterList_NoWarning() + { + var transport = new TransportConfiguration + { + Host = "localhost,rabbitmq", + SslEnabled = false, + SuppressPlaintextWarning = true, + }; + var logger = MakeLogger(); + + ServiceConnectBuilder.WarnIfPlaintextOnNonLoopbackHost(transport, logger); + + Assert.Empty(logger.Collector.GetSnapshot()); + } + + /// Placeholder type for the FakeLogger category. + public sealed class PlaintextWarningTag { } +} diff --git a/src/ServiceConnect.UnitTests/Builder/ServiceConnectBuilderTests.cs b/src/ServiceConnect.UnitTests/Builder/ServiceConnectBuilderTests.cs new file mode 100644 index 000000000..a3c4337c9 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Builder/ServiceConnectBuilderTests.cs @@ -0,0 +1,171 @@ +using System.Reflection; +using ServiceConnect; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.Builder; + +public class TestFilter : IFilter +{ + public Task ProcessAsync(Envelope envelope, CancellationToken cancellationToken = default) => Task.FromResult(FilterAction.Continue); +} + +public class ServiceConnectBuilderTests +{ + [Fact] + public void ConfigureTransport_SetsTransportProperties() + { + var builder = new ServiceConnectBuilder(); + + builder.ConfigureTransport(t => t.Host = "myhost"); + + Assert.Equal("myhost", builder.BusConfig.Transport.Host); + } + + [Fact] + public void ConfigureQueues_SetsQueueProperties() + { + var builder = new ServiceConnectBuilder(); + + builder.ConfigureQueues(q => q.QueueName = "test-queue"); + + Assert.Equal("test-queue", builder.BusConfig.Queues.QueueName); + } + + [Fact] + public void ConfigurePipeline_SetsPipelineProperties() + { + var builder = new ServiceConnectBuilder(); + + builder.ConfigurePipeline(p => p.OutgoingFilters.Add(typeof(TestFilter))); + + Assert.Single(builder.BusConfig.Pipeline.OutgoingFilters); + } + + [Fact] + public void AddOutgoingFilter_AddsToOutgoingFilters() + { + var builder = new ServiceConnectBuilder(); + + builder.AddOutgoingFilter(); + + Assert.Contains(typeof(TestFilter), builder.BusConfig.Pipeline.OutgoingFilters); + } + + [Fact] + public void AddBeforeConsumingFilter_AddsToBeforeConsumingFilters() + { + var builder = new ServiceConnectBuilder(); + + builder.AddBeforeConsumingFilter(); + + Assert.Contains(typeof(TestFilter), builder.BusConfig.Pipeline.BeforeConsumingFilters); + } + + [Fact] + public void AddAfterConsumingFilter_AddsToAfterConsumingFilters() + { + var builder = new ServiceConnectBuilder(); + + builder.AddAfterConsumingFilter(); + + Assert.Contains(typeof(TestFilter), builder.BusConfig.Pipeline.AfterConsumingFilters); + } + + [Fact] + public void AddOnConsumedSuccessfullyFilter_AppendsTypeToConfig() + { + var builder = new ServiceConnectBuilder(); + + builder.AddOnConsumedSuccessfullyFilter(); + + Assert.Contains(typeof(TestFilter), builder.BusConfig.Pipeline.OnConsumedSuccessfullyFilters); + } + + [Fact] + public void ScanAssemblies_NullArray_Throws() + { + var builder = new ServiceConnectBuilder(); + + Assert.Throws(() => builder.ScanAssemblies((Assembly[])null!)); + } + + [Fact] + public void ScanAssemblies_NullElement_Throws() + { + // A null assembly element must be caught at the boundary (with the + // offending index named) rather than surfacing later as an NRE inside + // HandlerScanner, where the failure mode is obscure. + var builder = new ServiceConnectBuilder(); + + var ex = Assert.Throws( + () => builder.ScanAssemblies(typeof(TestFilter).Assembly, null!)); + + Assert.Contains("assemblies[1]", ex.Message); + } + + [Fact] + public void FluentChaining_ReturnsBuilderInstance() + { + var builder = new ServiceConnectBuilder(); + + var result = builder + .ConfigureTransport(t => t.Host = "myhost") + .ConfigureQueues(q => q.QueueName = "test-queue") + .AddOutgoingFilter() + .AddBeforeConsumingFilter() + .AddAfterConsumingFilter(); + + Assert.Same(builder, result); + } + + [Fact] + public void ConfigureQueues_EmptyQueueName_Throws() + { + var builder = new ServiceConnectBuilder(); + + var ex = Assert.Throws( + () => builder.ConfigureQueues(q => q.QueueName = "")); + + Assert.Contains("QueueName", ex.Message); + } + + [Theory] + [InlineData(" ")] + [InlineData("\t")] + [InlineData(" ")] + public void ConfigureQueues_WhitespaceQueueName_Throws(string whitespace) + { + var builder = new ServiceConnectBuilder(); + + var ex = Assert.Throws( + () => builder.ConfigureQueues(q => q.QueueName = whitespace)); + + Assert.Contains("QueueName", ex.Message); + } + + [Theory] + [InlineData(0)] + [InlineData(-1)] + public void ConfigureBus_ConsumerCountLessThanOne_ThrowsInvalidOperationException(int count) + { + var builder = new ServiceConnectBuilder(); + + var ex = Assert.Throws( + () => builder.ConfigureBus(b => b.ConsumerCount = count)); + + Assert.Contains("BusConfiguration.ConsumerCount", ex.Message); + Assert.Contains(count.ToString(), ex.Message); + } + + [Fact] + public void ConfigureBus_ConsumerCountOne_DoesNotThrow() + { + var builder = new ServiceConnectBuilder(); + + // 1 is the minimum valid value; no exception expected. + builder.ConfigureBus(b => b.ConsumerCount = 1); + + Assert.Equal(1, builder.BusConfig.ConsumerCount); + } +} diff --git a/src/ServiceConnect.UnitTests/BusSetupTests.cs b/src/ServiceConnect.UnitTests/BusSetupTests.cs deleted file mode 100644 index 20df0fd98..000000000 --- a/src/ServiceConnect.UnitTests/BusSetupTests.cs +++ /dev/null @@ -1,513 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; -using Moq; -using ServiceConnect.Core; -using ServiceConnect.Interfaces; -using System.Linq; -using ServiceConnect.UnitTests.Fakes.Messages; -using Xunit; - -namespace ServiceConnect.UnitTests -{ - public class BusSetupTests - { - [Fact] - public void ShouldSetupBusWithCorrectCustomDatabaseNameAndConnectionString() - { - // Arrange - IBus bus = ServiceConnect.Bus.Initialize(config => - { - config.SetProcessManagerFinder(); - config.SetContainerType(); - config.SetProducer(); - config.PersistenceStoreDatabaseName = "TestDatabaseName"; - config.PersistenceStoreConnectionString = "TestConnectionString"; - config.AutoStartConsuming = false; - config.ScanForMesssageHandlers = false; - }); - - // Act - IConfiguration configuration = bus.Configuration; - - // Assert - Assert.Equal("TestDatabaseName", configuration.PersistenceStoreDatabaseName); - Assert.Equal("TestConnectionString", configuration.PersistenceStoreConnectionString); - } - - [Fact] - public void ShouldSetupBusWithCorrectDefaultDatabaseNameAndConnectionString() - { - // Arrange - IBus bus = ServiceConnect.Bus.Initialize(config => - { - config.SetProcessManagerFinder(); - config.SetContainerType(); - config.SetProducer(); - config.AutoStartConsuming = false; - config.ScanForMesssageHandlers = false; - }); - - // Act - IConfiguration configuration = bus.Configuration; - - // Assert - Assert.Equal("RMessageBusPersistantStore", configuration.PersistenceStoreDatabaseName); - Assert.Equal("mongodb://localhost/", configuration.PersistenceStoreConnectionString); - } - - [Fact] - public void ShouldSetupBusToScanForAllHandlers() - { - // Arrange - IBus bus = ServiceConnect.Bus.Initialize(config => - { - config.SetProcessManagerFinder(); - config.SetContainerType(); - config.SetProducer(); - config.ScanForMesssageHandlers = true; - config.AutoStartConsuming = false; - }); - - // Act - IConfiguration configuration = bus.Configuration; - - // Assert - Assert.True(configuration.ScanForMesssageHandlers); - } - - //[Fact] - //public void ShouldSetupBusWithCustomContainer() - //{ - // // Arrange - // IBus bus = Bus.Initialize(config => - // { - // config.SetContainerType(); - // config.SetProducer(); - // config.AutoStartConsuming = false; - // config.ScanForMesssageHandlers = false; - // }); - - // // Act - // IConfiguration configuration = bus.Configuration; - - // // Assert - // Assert.Equal(typeof(FakeContainer), configuration.ContainerType); - //} - - [Fact] - public void ShouldSetupBusWithCustomConsumer() - { - // Arrange - IBus bus = ServiceConnect.Bus.Initialize(config => - { - config.SetConsumer(); - config.SetProducer(); - config.AutoStartConsuming = false; - config.ScanForMesssageHandlers = false; - }); - - // Act - IConfiguration configuration = bus.Configuration; - - // Assert - Assert.Equal(typeof(FakeConsumer), configuration.ConsumerType); - } - - [Fact] - public void ShouldSetupBusWithCustomPublisher() - { - // Arrange - IBus bus = ServiceConnect.Bus.Initialize(config => - { - config.SetProducer(); - config.SetContainerType(); - config.AutoStartConsuming = false; - config.ScanForMesssageHandlers = false; - }); - - // Act - IConfiguration configuration = bus.Configuration; - - // Assert - Assert.Equal(typeof(FakePublisher), configuration.ProducerType); - } - - [Fact] - public void ShouldSetupBusWithCustomProcessManagerFinder() - { - // Arrange - IBus bus = ServiceConnect.Bus.Initialize(config => - { - config.SetProcessManagerFinder(); - config.SetContainerType(); - config.SetProducer(); - config.AutoStartConsuming = false; - config.ScanForMesssageHandlers = false; - }); - - // Act - IConfiguration configuration = bus.Configuration; - - // Assert - Assert.Equal(typeof(FakeProcessManagerFinder), configuration.GetProcessManagerFinder().GetType()); - } - - [Fact] - public void SouldInitializeTheContainer() - { - // Arrange - var mockConfiguration = new Mock(); - var mockContainer = new Mock(); - mockContainer.Setup(x => x.Initialize()); - mockConfiguration.Setup(x => x.GetContainer()).Returns(mockContainer.Object); - mockConfiguration.SetupGet(x => x.TransportSettings).Returns(new TransportSettings {}); - - // Act - new ServiceConnect.Bus(mockConfiguration.Object); - - // Assert - mockContainer.Verify(x => x.Initialize(), Times.Once); - } - - [Fact] - public void ShouldAddMessageMappingsToConfiguration() - { - // Arrange - var bus = ServiceConnect.Bus.Initialize(conf => - { - conf.AddQueueMapping(typeof(FakeMessage1), "MyEndPoint1"); - conf.AddQueueMapping(typeof(FakeMessage2), "MyEndPoint2"); - conf.SetContainerType(); - conf.SetProducer(); - conf.AutoStartConsuming = false; - conf.ScanForMesssageHandlers = false; - }); - - // Act - IConfiguration configuration = bus.Configuration; - - // Assert - Assert.Contains(configuration.QueueMappings, x => x.Key == typeof(FakeMessage1).FullName && x.Value.Contains("MyEndPoint1")); - Assert.Contains(configuration.QueueMappings, x => x.Key == typeof(FakeMessage2).FullName && x.Value.Contains("MyEndPoint2")); - } - - [Fact] - public void ShouldSetupQueueName() - { - // Arrange - var bus = ServiceConnect.Bus.Initialize(c => - { - c.SetQueueName("TestQueue"); - c.SetContainerType(); - c.SetProducer(); - c.AutoStartConsuming = false; - c.ScanForMesssageHandlers = false; - }); - - // Act - var config = bus.Configuration; - - // Assert - Assert.Equal("TestQueue", config.TransportSettings.QueueName); - } - - [Fact] - public void ShouldSetupErrorQueueName() - { - // Arrange - var bus = ServiceConnect.Bus.Initialize(c => - { - c.SetErrorQueueName("TestErrorQueue"); - c.SetContainerType(); - c.SetProducer(); - c.AutoStartConsuming = false; - c.ScanForMesssageHandlers = false; - }); - - // Act - var config = bus.Configuration; - - // Assert - Assert.Equal("TestErrorQueue", config.TransportSettings.ErrorQueueName); - } - - [Fact] - public void ShouldSetupAuditQueueName() - { - // Arrange - var bus = ServiceConnect.Bus.Initialize(c => - { - c.SetAuditQueueName("TestAuditQueue"); - c.SetContainerType(); - c.SetProducer(); - c.AutoStartConsuming = false; - c.ScanForMesssageHandlers = false; - }); - - // Act - var config = bus.Configuration; - - // Assert - Assert.Equal("TestAuditQueue", config.TransportSettings.AuditQueueName); - } - - [Fact] - public void ShouldSetupHeartbeatQueueName() - { - // Arrange - var bus = ServiceConnect.Bus.Initialize(c => - { - c.SetHeartbeatQueueName("TestHeartbeatQueue"); - c.SetContainerType(); - c.SetProducer(); - c.AutoStartConsuming = false; - c.ScanForMesssageHandlers = false; - }); - - // Act - var config = bus.Configuration; - - // Assert - Assert.Equal("TestHeartbeatQueue", config.TransportSettings.HeartbeatQueueName); - } - - [Fact] - public void ShouldSetupAuditingEnabled() - { - // Arrange - var bus = ServiceConnect.Bus.Initialize(c => - { - c.SetAuditingEnabled(true); - c.SetContainerType(); - c.SetProducer(); - c.AutoStartConsuming = false; - c.ScanForMesssageHandlers = false; - }); - - // Act - var config = bus.Configuration; - - // Assert - Assert.True(config.TransportSettings.AuditingEnabled); - } - - [Fact] - public void ShouldPurgeQueuesOnStartup() - { - // Arrange - var bus = ServiceConnect.Bus.Initialize(c => - { - c.SetContainerType(); - c.SetProducer(); - c.SetConsumer(); - c.PurgeQueuesOnStart(); - }); - - // Act - var config = bus.Configuration; - - // Assert - Assert.True(config.TransportSettings.PurgeQueueOnStartup); - } - - [Fact] - public void ShouldScanForMessageHandlersByDefault() - { - // Arrange - var bus = ServiceConnect.Bus.Initialize(c => - { - c.SetContainerType(); - c.SetProducer(); - c.AutoStartConsuming = false; - }); - - // Act - var config = bus.Configuration; - - // Assert - Assert.True(config.ScanForMesssageHandlers); - } - - public class FakeContainer : IBusContainer - { - public IEnumerable GetHandlerTypes() - { - return new List(); - } - - public IEnumerable GetHandlerTypes(params Type[] messageHandler) - { - return new List(); - } - - public object GetInstance(Type handlerType) - { - throw new NotImplementedException(); - } - - public T GetInstance(IDictionary arguments) - { - throw new NotImplementedException(); - } - - public T GetInstance() - { - throw new NotImplementedException(); - } - - public void ScanForHandlers() - {} - - public void Initialize() - { - Initialized = true; - } - - public void Initialize(object container) - { - throw new NotImplementedException(); - } - - public void AddBus(IBus bus) - { - } - - public object GetContainer() - { - throw new NotImplementedException(); - } - - public void AddHandler(Type handlerType, T handler) - { - - } - - public bool Initialized { get; set; } - } - - public class FakeConsumer : IConsumer - { - public FakeConsumer(ILogger logger) - { - - } - - public void Dispose() - { - throw new NotImplementedException(); - } - - public void StartConsuming(string queueName, IList messageTypes, ConsumerEventHandler eventHandler, IConfiguration config) - { - } - - public bool IsConnected() - { - throw new NotImplementedException(); - } - - public string Type { get; private set; } - } - - public class FakePublisher : IProducer - { - public FakePublisher(ITransportSettings transportSettings, IDictionary> queueMappings, ILogger logger) - { - } - public void Dispose() - { - - } - - public void Publish(Type type, byte[] message, Dictionary headers = null) - { - } - - public void Publish(Type type, byte[] message, string routingKey, Dictionary headers = null) - { - } - - public void Send(Type type, byte[] message, Dictionary headers = null) - { - } - - public void Send(string endPoint, Type type, byte[] message, Dictionary headers = null) - { - } - - public void Disconnect() - { - } - - public string Type { get; private set; } - public long MaximumMessageSize { get; private set; } - public void SendBytes(string endPoint, byte[] packet, Dictionary headers) - { - } - } - - public class FakeProcessManagerFinder : IProcessManagerFinder - { - public FakeProcessManagerFinder(string connectionString, string databaseName) - {} - - public IPersistanceData FindData(Guid id) where T : class, IProcessManagerData - { - throw new NotImplementedException(); - } - - public event TimeoutInsertedDelegate TimeoutInserted; - - public IPersistanceData FindData(IProcessManagerPropertyMapper mapper, Message message) where T : class, IProcessManagerData - { - throw new NotImplementedException(); - } - - public void InsertData(IProcessManagerData data) - { - - } - - public void UpdateData(IPersistanceData data) where T : class, IProcessManagerData - { - - } - - public void DeleteData(IPersistanceData data) where T : class, IProcessManagerData - { - - } - - public void InsertTimeout(TimeoutData timeoutData) - { - throw new NotImplementedException(); - } - - public TimeoutsBatch GetTimeoutsBatch() - { - throw new NotImplementedException(); - } - - public void RemoveDispatchedTimeout(Guid id) - { - throw new NotImplementedException(); - } - } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.UnitTests/BusTests.cs b/src/ServiceConnect.UnitTests/BusTests.cs deleted file mode 100644 index 3ade6af4e..000000000 --- a/src/ServiceConnect.UnitTests/BusTests.cs +++ /dev/null @@ -1,994 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; -using System.Text; -using System.Threading.Tasks; -using Moq; -using Newtonsoft.Json; -using ServiceConnect.Core; -using ServiceConnect.Interfaces; -using ServiceConnect.UnitTests.Fakes.Handlers; -using ServiceConnect.UnitTests.Fakes.Messages; -using Xunit; - -namespace ServiceConnect.UnitTests -{ - public class BusTests - { - private readonly Mock _mockConfiguration; - private readonly Mock _mockContainer; - private readonly Mock _mockConsumer; - private readonly Mock _mockSendMessagePipeline; - private ConsumerEventHandler _fakeEventHandler; - private Guid _correlationId; - private Mock _mockProcessMessagePipeline; - - public BusTests() - { - _mockConfiguration = new Mock(); - _mockContainer = new Mock(); - _mockConsumer = new Mock(); - _mockSendMessagePipeline = new Mock(); - _mockConfiguration.Setup(x => x.GetContainer()).Returns(_mockContainer.Object); - _mockConfiguration.SetupGet(x => x.TransportSettings).Returns(new TransportSettings { QueueName = "ServiceConnect.UnitTests" }); - _mockConfiguration.Setup(x => x.Clients).Returns(1); - _mockConfiguration.Setup(x => x.GetConsumer()).Returns(_mockConsumer.Object); - _mockProcessMessagePipeline = new Mock(); - _mockConfiguration.Setup(x => x.GetProcessMessagePipeline(It.IsAny())).Returns(_mockProcessMessagePipeline.Object); - _mockConfiguration.Setup(x => x.GetSendMessagePipeline()).Returns(_mockSendMessagePipeline.Object); - } - - public bool AssignEventHandler(ConsumerEventHandler eventHandler) - { - _fakeEventHandler = eventHandler; - return true; - } - - [Fact] - public void DisposingBusShouldReturnFalseForIsConnected() - { - // Arrange - var bus = new Bus(_mockConfiguration.Object); - _mockConsumer.Setup(x => x.IsConnected()).Returns(true); - - // Act - bus.Dispose(); - - // Assert - Assert.False(bus.IsConnected()); - } - - [Fact] - public void StartConsumingShouldReturnTrueForIsConnected() - { - // Arrange - var bus = new Bus(_mockConfiguration.Object); - _mockConsumer.Setup(x => x.IsConnected()).Returns(true); - - // Act - bus.StartConsuming(); - - // Assert - Assert.True(bus.IsConnected()); - } - - [Fact] - public void StartConsumingShouldGetAllHandlerTypesFromContainer() - { - // Arrange - var bus = new ServiceConnect.Bus(_mockConfiguration.Object); - _mockContainer.Setup(x => x.GetHandlerTypes()).Returns(new List()); - - // Act - bus.StartConsuming(); - - // Assert - // One time for handlers and one time for aggregators - _mockContainer.Verify(x => x.GetHandlerTypes(), Times.Exactly(2)); - _mockContainer.VerifyAll(); - } - - [Fact] - public void StartConsumingShouldConsumeAllMessageTypes() - { - // Arrange - var bus = new ServiceConnect.Bus(_mockConfiguration.Object); - - var handlerReferences = new List - { - new HandlerReference - { - HandlerType = typeof (FakeHandler1), - MessageType = typeof (FakeMessage1) - }, - new HandlerReference - { - HandlerType = typeof (FakeHandler2), - MessageType = typeof (FakeMessage2) - } - }; - - _mockContainer.Setup(x => x.GetHandlerTypes()).Returns(handlerReferences); - - _mockConsumer.Setup(x => x.StartConsuming(It.IsAny(), It.Is>(m => m.Contains(typeof(FakeMessage1).FullName.Replace(".", string.Empty)) && m.Contains(typeof(FakeMessage2).FullName.Replace(".", string.Empty))), It.IsAny(), It.IsAny())); - - // Act - bus.StartConsuming(); - - // Assert - _mockContainer.VerifyAll(); - _mockConsumer.Verify(x => x.StartConsuming(It.IsAny(), It.Is>(m => m.Contains(typeof(FakeMessage1).FullName.Replace(".", string.Empty)) && m.Contains(typeof(FakeMessage2).FullName.Replace(".", string.Empty))), It.IsAny(), It.IsAny()), Times.Once); - } - - [Fact] - public void ConsumeMessageEventShouldExecuteMessageProcessingPipeline() - { - // Arrange - var bus = new ServiceConnect.Bus(_mockConfiguration.Object); - - var handlerReferences = new List - { - new HandlerReference - { - HandlerType = typeof (FakeHandler1), - MessageType = typeof (FakeMessage1) - }, - new HandlerReference - { - HandlerType = typeof (FakeHandler2), - MessageType = typeof (FakeMessage2) - } - }; - - var headers = new Dictionary - { - { "MessageType", Encoding.ASCII.GetBytes("Send") } - }; - - _mockContainer.Setup(x => x.GetHandlerTypes()).Returns(handlerReferences); - _mockConsumer.Setup(x => x.StartConsuming(It.IsAny(), It.IsAny>(), It.Is(y => AssignEventHandler(y)), It.IsAny())); - - bus.StartConsuming(); - - var message = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim Watson" - })); - - // Act - _fakeEventHandler(message, typeof(FakeMessage1).AssemblyQualifiedName, headers); - - // Assert - _mockProcessMessagePipeline.Verify(x => x.ExecutePipeline(It.Is(y => y.Headers == headers), It.IsAny(), It.Is(y => ((FakeMessage1)JsonConvert.DeserializeObject(Encoding.UTF8.GetString(y.Body), typeof(FakeMessage1))).Username == "Tim Watson")), Times.Once); - } - - private bool SetCorrelationId(Guid id) - { - _correlationId = id; - return true; - } - - [Fact] - public void PublishShouldPublishMessage() - { - // Arrange - var mockConfiguration = new Mock(); - var mockProducer = new Mock(); - var mockContainer = new Mock(); - var mockProessManagerFinder = new Mock(); - var mockSendMessagePipeline = new Mock(); - mockConfiguration.Setup(x => x.GetSendMessagePipeline()).Returns(mockSendMessagePipeline.Object); - mockConfiguration.Setup(x => x.GetContainer()).Returns(mockContainer.Object); - mockConfiguration.Setup(x => x.GetProcessManagerFinder()).Returns(mockProessManagerFinder.Object); - mockConfiguration.Setup(x => x.GetProducer()).Returns(mockProducer.Object); - mockConfiguration.SetupGet(x => x.TransportSettings).Returns(new TransportSettings()); - - var message = new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim Watson" - }; - - - // Act - var bus = new ServiceConnect.Bus(mockConfiguration.Object); - bus.Publish(message, null); - - // Assert - mockSendMessagePipeline.Setup(x => x.ExecutePublishMessagePipeline(typeof(FakeMessage1), It.IsAny(), It.IsAny>(), It.IsAny())); - } - - [Fact] - public void PublishWithRoutingKeyShouldPublishMessage() - { - // Arrange - var mockConfiguration = new Mock(); - var mockProducer = new Mock(); - var mockContainer = new Mock(); - var mockProessManagerFinder = new Mock(); - var mockSendMessagePipeline = new Mock(); - mockConfiguration.Setup(x => x.GetSendMessagePipeline()).Returns(mockSendMessagePipeline.Object); - mockConfiguration.Setup(x => x.GetContainer()).Returns(mockContainer.Object); - mockConfiguration.Setup(x => x.GetProcessManagerFinder()).Returns(mockProessManagerFinder.Object); - mockConfiguration.Setup(x => x.GetProducer()).Returns(mockProducer.Object); - mockConfiguration.SetupGet(x => x.TransportSettings).Returns(new TransportSettings()); - - var message = new FakeMessage1(Guid.NewGuid()) - { - Username = "JP" - }; - - mockProducer.Setup(x => x.Publish(typeof(FakeMessage1), It.IsAny(), null)); - - // Act - var bus = new ServiceConnect.Bus(mockConfiguration.Object); - bus.Publish(message, "routingkey1"); - - // Assert - - mockSendMessagePipeline.Setup(x => x.ExecutePublishMessagePipeline(typeof(FakeMessage1), It.IsAny(), It.Is>(i => i.ContainsKey("RoutingKey")), It.IsAny())); - } - - [Fact] - public void SendShouldGetProducerFromContainer() - { - // Arrange - var mockConfiguration = new Mock(); - var mockProducer = new Mock(); - var mockContainer = new Mock(); - var mockProessManagerFinder = new Mock(); - var mockSendMessagePipeline = new Mock(); - mockConfiguration.Setup(x => x.GetSendMessagePipeline()).Returns(mockSendMessagePipeline.Object); - mockConfiguration.Setup(x => x.GetContainer()).Returns(mockContainer.Object); - mockConfiguration.Setup(x => x.GetProcessManagerFinder()).Returns(mockProessManagerFinder.Object); - mockConfiguration.Setup(x => x.GetProducer()).Returns(mockProducer.Object); - mockConfiguration.SetupGet(x => x.TransportSettings).Returns(new TransportSettings()); - - // Act - var bus = new ServiceConnect.Bus(mockConfiguration.Object); - bus.Send(new FakeMessage1(Guid.NewGuid()), null); - - // Assert - mockConfiguration.Verify(x => x.GetProducer(), Times.Once()); - } - - [Fact] - public void SendWithEndPointShouldGetProducerFromContainer() - { - // Arrange - var mockConfiguration = new Mock(); - var mockProducer = new Mock(); - var mockContainer = new Mock(); - var mockProessManagerFinder = new Mock(); - var mockSendMessagePipeline = new Mock(); - mockConfiguration.Setup(x => x.GetSendMessagePipeline()).Returns(mockSendMessagePipeline.Object); - mockConfiguration.Setup(x => x.GetContainer()).Returns(mockContainer.Object); - mockConfiguration.Setup(x => x.GetProcessManagerFinder()).Returns(mockProessManagerFinder.Object); - mockConfiguration.Setup(x => x.GetProducer()).Returns(mockProducer.Object); - mockConfiguration.SetupGet(x => x.TransportSettings).Returns(new TransportSettings()); - - // Act - var bus = new ServiceConnect.Bus(mockConfiguration.Object); - bus.Send("EndPoint", new FakeMessage1(Guid.NewGuid()), null); - - // Assert - mockConfiguration.Verify(x => x.GetProducer(), Times.Once()); - } - - [Fact] - public void SendShouldSendCommand() - { - // Arrange - var mockConfiguration = new Mock(); - var mockProducer = new Mock(); - var mockContainer = new Mock(); - var mockProessManagerFinder = new Mock(); - var mockSendMessagePipeline = new Mock(); - mockConfiguration.Setup(x => x.GetSendMessagePipeline()).Returns(mockSendMessagePipeline.Object); - mockConfiguration.Setup(x => x.GetContainer()).Returns(mockContainer.Object); - mockConfiguration.Setup(x => x.GetProcessManagerFinder()).Returns(mockProessManagerFinder.Object); - mockConfiguration.Setup(x => x.GetProducer()).Returns(mockProducer.Object); - mockConfiguration.SetupGet(x => x.TransportSettings).Returns(new TransportSettings()); - - var message = new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim Watson" - }; - - mockProducer.Setup(x => x.Send(typeof(FakeMessage1), It.IsAny(), null)); - - // Act - var bus = new ServiceConnect.Bus(mockConfiguration.Object); - bus.Send(message, null); - - // Assert - - mockSendMessagePipeline.Verify(x => x.ExecuteSendMessagePipeline(typeof(FakeMessage1), It.IsAny(), It.IsAny>(), null), Times.Once); - } - - [Fact] - public void SendShouldSendCommandUsingSpecifiedEndpoint() - { - // Arrange - var mockConfiguration = new Mock(); - var mockProducer = new Mock(); - var mockContainer = new Mock(); - var mockProessManagerFinder = new Mock(); - var mockSendMessagePipeline = new Mock(); - mockConfiguration.Setup(x => x.GetSendMessagePipeline()).Returns(mockSendMessagePipeline.Object); - mockConfiguration.Setup(x => x.GetContainer()).Returns(mockContainer.Object); - mockConfiguration.Setup(x => x.GetProcessManagerFinder()).Returns(mockProessManagerFinder.Object); - mockConfiguration.Setup(x => x.GetProducer()).Returns(mockProducer.Object); - mockConfiguration.SetupGet(x => x.TransportSettings).Returns(new TransportSettings()); - - var message = new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim Watson" - }; - - const string endPoint = "MyEndPoint"; - - mockProducer.Setup(x => x.Send(endPoint, typeof(FakeMessage1), It.IsAny(), null)); - - // Act - var bus = new ServiceConnect.Bus(mockConfiguration.Object); - bus.Send(endPoint, message, null); - - // Assert - - mockSendMessagePipeline.Verify(x => x.ExecuteSendMessagePipeline(typeof(FakeMessage1), It.IsAny(), It.IsAny>(), endPoint), Times.Once); - } - - [Fact] - public void SendShouldSendCommandUsingSpecifiedEndpoints() - { - // Arrange - var mockConfiguration = new Mock(); - var mockProducer = new Mock(); - var mockContainer = new Mock(); - var mockProessManagerFinder = new Mock(); - var mockSendMessagePipeline = new Mock(); - mockConfiguration.Setup(x => x.GetSendMessagePipeline()).Returns(mockSendMessagePipeline.Object); - mockConfiguration.Setup(x => x.GetContainer()).Returns(mockContainer.Object); - mockConfiguration.Setup(x => x.GetProcessManagerFinder()).Returns(mockProessManagerFinder.Object); - mockConfiguration.Setup(x => x.GetProducer()).Returns(mockProducer.Object); - mockConfiguration.SetupGet(x => x.TransportSettings).Returns(new TransportSettings()); - - var message = new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim Watson" - }; - - List endPoints = new List { "MyEndPoint1", "MyEndPoint2" }; - - foreach (string endPoint in endPoints) - { - mockSendMessagePipeline.Setup(x => x.ExecuteSendMessagePipeline(typeof(FakeMessage1), It.IsAny(), It.IsAny>(), endPoint)); - } - - // Act - var bus = new ServiceConnect.Bus(mockConfiguration.Object); - bus.Send(endPoints, message, null); - - // Assert - foreach (string endPoint in endPoints) - { - mockSendMessagePipeline.Verify(x => x.ExecuteSendMessagePipeline(typeof(FakeMessage1), It.IsAny(), It.IsAny>(), endPoint), Times.Once); - } - } - - [Fact] - public void SendingRequestSynchronouslyShouldSendCommand() - { - // Arrange - var mockConfiguration = new Mock(); - var mockProducer = new Mock(); - var mockContainer = new Mock(); - var mockRequestConfiguration = new Mock(); - var mockSendMessagePipeline = new Mock(); - mockConfiguration.Setup(x => x.GetSendMessagePipeline()).Returns(mockSendMessagePipeline.Object); - mockConfiguration.Setup(x => x.GetContainer()).Returns(mockContainer.Object); - mockConfiguration.Setup(x => x.GetProducer()).Returns(mockProducer.Object); - mockConfiguration.SetupGet(x => x.TransportSettings).Returns(new TransportSettings()); - mockConfiguration.Setup(x => x.GetRequestConfiguration(It.IsAny())).Returns(mockRequestConfiguration.Object); - var task = new Task(() => { }); - mockRequestConfiguration.Setup(x => x.SetHandler(It.IsAny>())).Returns(task); - - var message = new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim Watson" - }; - - mockSendMessagePipeline.Setup(x => x.ExecuteSendMessagePipeline(typeof(FakeMessage1), It.IsAny(), It.IsAny>(), It.IsAny())).Callback(task.Start); - - // Act - var bus = new ServiceConnect.Bus(mockConfiguration.Object); - FakeMessage2 response = bus.SendRequest(message, null, 1000); - - // Assert - - mockSendMessagePipeline.Verify(x => x.ExecuteSendMessagePipeline(typeof(FakeMessage1), It.IsAny(), It.IsAny>(), null), Times.Once); - } - - [Fact] - public void SendingRequestSynchronouslyShouldReturnResponse() - { - // Arrange - var mockConfiguration = new Mock(); - var mockProducer = new Mock(); - var mockContainer = new Mock(); - var mockRequestConfiguration = new Mock(); - var mockSendMessagePipeline = new Mock(); - mockConfiguration.Setup(x => x.GetSendMessagePipeline()).Returns(mockSendMessagePipeline.Object); - mockConfiguration.Setup(x => x.GetContainer()).Returns(mockContainer.Object); - mockConfiguration.Setup(x => x.GetProducer()).Returns(mockProducer.Object); - mockConfiguration.SetupGet(x => x.TransportSettings).Returns(new TransportSettings()); - mockConfiguration.Setup(x => x.GetRequestConfiguration(It.IsAny())).Returns(mockRequestConfiguration.Object); - var task = new Task(() => { }); - - Action action = null; - mockRequestConfiguration.Setup(x => x.SetHandler(It.IsAny>())).Returns(task) - .Callback>(r => action = r); - - var message = new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim Watson" - }; - - mockSendMessagePipeline.Setup(x => x.ExecuteSendMessagePipeline(It.IsAny(), It.IsAny(), It.IsAny>(), It.IsAny())).Callback(() => - { - action(new FakeMessage2(message.CorrelationId) - { - DisplayName = "Tim Watson", - Email = "twatson@test.com" - }); - task.Start(); - }); - - // Act - var bus = new ServiceConnect.Bus(mockConfiguration.Object); - FakeMessage2 response = bus.SendRequest(message, null, 1000); - - // Assert - Assert.Equal("Tim Watson", response.DisplayName); - Assert.Equal("twatson@test.com", response.Email); - Assert.Equal(message.CorrelationId, response.CorrelationId); - } - - [Fact] - public void SendingRequestWithEndpointSynchronouslyShouldSendMessageToTheSpecifiedEndPoint() - { - // Arrange - var mockConfiguration = new Mock(); - var mockProducer = new Mock(); - var mockContainer = new Mock(); - var mockRequestConfiguration = new Mock(); - var mockSendMessagePipeline = new Mock(); - mockConfiguration.Setup(x => x.GetSendMessagePipeline()).Returns(mockSendMessagePipeline.Object); - mockConfiguration.Setup(x => x.GetContainer()).Returns(mockContainer.Object); - mockConfiguration.Setup(x => x.GetProducer()).Returns(mockProducer.Object); - mockConfiguration.SetupGet(x => x.TransportSettings).Returns(new TransportSettings()); - mockConfiguration.Setup(x => x.GetRequestConfiguration(It.IsAny())).Returns(mockRequestConfiguration.Object); - var task = new Task(() => { }); - mockRequestConfiguration.Setup(x => x.SetHandler(It.IsAny>())).Returns(task); - - var message = new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim Watson" - }; - - mockSendMessagePipeline.Setup(x => x.ExecuteSendMessagePipeline(It.IsAny(), It.IsAny(), It.IsAny>(), "test")).Callback(task.Start); - - // Act - var bus = new ServiceConnect.Bus(mockConfiguration.Object); - FakeMessage2 response = bus.SendRequest("test", message, null, 1000); - - // Assert - mockSendMessagePipeline.Verify(x => x.ExecuteSendMessagePipeline(typeof(FakeMessage1), It.IsAny(), It.IsAny>(), "test"), Times.Once); - } - - [Fact] - public void SendingRequestWithEndpointSynchronouslyShouldReturnResponse() - { - // Arrange - var mockConfiguration = new Mock(); - var mockProducer = new Mock(); - var mockContainer = new Mock(); - var mockRequestConfiguration = new Mock(); - var mockSendMessagePipeline = new Mock(); - mockConfiguration.Setup(x => x.GetSendMessagePipeline()).Returns(mockSendMessagePipeline.Object); - mockConfiguration.Setup(x => x.GetContainer()).Returns(mockContainer.Object); - mockConfiguration.Setup(x => x.GetProducer()).Returns(mockProducer.Object); - mockConfiguration.SetupGet(x => x.TransportSettings).Returns(new TransportSettings()); - mockConfiguration.Setup(x => x.GetRequestConfiguration(It.IsAny())).Returns(mockRequestConfiguration.Object); - var task = new Task(() => { }); - - Action action = null; - mockRequestConfiguration.Setup(x => x.SetHandler(It.IsAny>())).Returns(task) - .Callback>(r => action = r); - - var message = new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim Watson" - }; - - - mockSendMessagePipeline.Setup(x => x.ExecuteSendMessagePipeline(It.IsAny(), It.IsAny(), It.IsAny>(), "test")).Callback(() => - { - action(new FakeMessage2(message.CorrelationId) - { - DisplayName = "Tim Watson", - Email = "twatson@test.com" - }); - task.Start(); - }); - - // Act - var bus = new ServiceConnect.Bus(mockConfiguration.Object); - FakeMessage2 response = bus.SendRequest("test", message, null, 1000); - - // Assert - Assert.Equal("Tim Watson", response.DisplayName); - Assert.Equal("twatson@test.com", response.Email); - Assert.Equal(message.CorrelationId, response.CorrelationId); - } - - [Fact] - public void SendingRequestWithCallbackShouldSendCommand() - { - // Arrange - var mockConfiguration = new Mock(); - var mockProducer = new Mock(); - var mockContainer = new Mock(); - var mockRequestConfiguration = new Mock(); - var mockSendMessagePipeline = new Mock(); - mockConfiguration.Setup(x => x.GetSendMessagePipeline()).Returns(mockSendMessagePipeline.Object); - mockConfiguration.Setup(x => x.GetContainer()).Returns(mockContainer.Object); - mockConfiguration.Setup(x => x.GetProducer()).Returns(mockProducer.Object); - mockConfiguration.SetupGet(x => x.TransportSettings).Returns(new TransportSettings()); - mockConfiguration.Setup(x => x.GetRequestConfiguration(It.IsAny())).Returns(mockRequestConfiguration.Object); - var task = new Task(() => { }); - mockRequestConfiguration.Setup(x => x.SetHandler(It.IsAny>())).Returns(task); - - var message = new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim Watson" - }; - - // Act - var bus = new ServiceConnect.Bus(mockConfiguration.Object); - bus.SendRequest(message, x => { }, null); - - // Assert - - mockSendMessagePipeline.Verify(x => x.ExecuteSendMessagePipeline(typeof(FakeMessage1), It.IsAny(), It.IsAny>(), null), Times.Once); - - } - - [Fact] - public void SendingRequestWithCallbackShouldPassCallbackToHandler() - { - // Arrange - var mockConfiguration = new Mock(); - var mockProducer = new Mock(); - var mockContainer = new Mock(); - var mockRequestConfiguration = new Mock(); - var mockSendMessagePipeline = new Mock(); - mockConfiguration.Setup(x => x.GetSendMessagePipeline()).Returns(mockSendMessagePipeline.Object); - mockConfiguration.Setup(x => x.GetContainer()).Returns(mockContainer.Object); - mockConfiguration.Setup(x => x.GetProducer()).Returns(mockProducer.Object); - mockConfiguration.SetupGet(x => x.TransportSettings).Returns(new TransportSettings()); - mockConfiguration.Setup(x => x.GetRequestConfiguration(It.IsAny())).Returns(mockRequestConfiguration.Object); - var task = new Task(() => { }); - - bool actionCalled = false; - Action action = message2 => { actionCalled = true; }; - - mockRequestConfiguration.Setup(x => x.SetHandler(It.IsAny>())).Callback>(a => a(new FakeMessage2(Guid.NewGuid()))).Returns(task); - - var message = new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim Watson" - }; - - mockProducer.Setup(x => x.Send(It.IsAny(), It.IsAny(), It.IsAny>())); - - // Act - var bus = new ServiceConnect.Bus(mockConfiguration.Object); - bus.SendRequest(message, action, null); - - // Assert - mockRequestConfiguration.Verify(x => x.SetHandler(It.IsAny>()), Times.Once()); - Assert.True(actionCalled); - } - - [Fact] - public void SendingRequestWithEndpointAndCallbackShouldSendMessageToTheSpecifiedEndPoint() - { - // Arrange - var mockConfiguration = new Mock(); - var mockProducer = new Mock(); - var mockContainer = new Mock(); - var mockRequestConfiguration = new Mock(); - var mockSendMessagePipeline = new Mock(); - mockConfiguration.Setup(x => x.GetSendMessagePipeline()).Returns(mockSendMessagePipeline.Object); - mockConfiguration.Setup(x => x.GetContainer()).Returns(mockContainer.Object); - mockConfiguration.Setup(x => x.GetProducer()).Returns(mockProducer.Object); - mockConfiguration.SetupGet(x => x.TransportSettings).Returns(new TransportSettings()); - mockConfiguration.Setup(x => x.GetRequestConfiguration(It.IsAny())).Returns(mockRequestConfiguration.Object); - var task = new Task(() => { }); - mockRequestConfiguration.Setup(x => x.SetHandler(It.IsAny>())).Returns(task); - - var message = new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim Watson" - }; - - - // Act - var bus = new ServiceConnect.Bus(mockConfiguration.Object); - bus.SendRequest("test", message, x => { }, null); - - // Assert - mockSendMessagePipeline.Verify(x => x.ExecuteSendMessagePipeline(It.IsAny(), It.IsAny(), It.IsAny>(), "test"), Times.Once); - } - - [Fact] - public void SendingRequestWithEndpointAndCallbackShouldPassCallbackToHandler() - { - // Arrange - var mockConfiguration = new Mock(); - var mockProducer = new Mock(); - var mockContainer = new Mock(); - var mockRequestConfiguration = new Mock(); - var mockSendMessagePipeline = new Mock(); - mockConfiguration.Setup(x => x.GetSendMessagePipeline()).Returns(mockSendMessagePipeline.Object); - mockConfiguration.Setup(x => x.GetContainer()).Returns(mockContainer.Object); - mockConfiguration.Setup(x => x.GetProducer()).Returns(mockProducer.Object); - mockConfiguration.SetupGet(x => x.TransportSettings).Returns(new TransportSettings()); - mockConfiguration.Setup(x => x.GetRequestConfiguration(It.IsAny())).Returns(mockRequestConfiguration.Object); - var task = new Task(() => { }); - - bool actionCalled = false; - Action action = message2 => { actionCalled = true; }; - - mockRequestConfiguration.Setup(x => x.SetHandler(It.IsAny>())).Callback>(a => a(new FakeMessage2(Guid.NewGuid()))).Returns(task); - - var message = new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim Watson" - }; - - mockProducer.Setup(x => x.Send(It.IsAny(), It.IsAny(), It.IsAny>())); - - // Act - var bus = new ServiceConnect.Bus(mockConfiguration.Object); - bus.SendRequest("test", message, action, null); - - // Assert - mockRequestConfiguration.Verify(x => x.SetHandler(It.IsAny>()), Times.Once()); - Assert.True(actionCalled); - } - - [Fact] - public void SendingRequestToMultipleEndpointsShouldPassResponsesToCallbackHandler() - { - // Arrange - var mockConfiguration = new Mock(); - var mockProducer = new Mock(); - var mockContainer = new Mock(); - var mockRequestConfiguration = new Mock(); - var mockSendMessagePipeline = new Mock(); - mockConfiguration.Setup(x => x.GetSendMessagePipeline()).Returns(mockSendMessagePipeline.Object); - mockConfiguration.Setup(x => x.GetContainer()).Returns(mockContainer.Object); - mockConfiguration.Setup(x => x.GetProducer()).Returns(mockProducer.Object); - mockConfiguration.SetupGet(x => x.TransportSettings).Returns(new TransportSettings()); - mockConfiguration.Setup(x => x.GetRequestConfiguration(It.IsAny())).Returns(mockRequestConfiguration.Object); - var task = new Task(() => { }); - - int count = 0; - var r1 = new FakeMessage2(Guid.NewGuid()); - var r2 = new FakeMessage2(Guid.NewGuid()); - - var responses = new List(); - Action action = message2 => - { - count++; - responses.Add(message2); - }; - - mockRequestConfiguration.Setup(x => x.SetHandler(It.IsAny>())).Callback>(a => - { - a(r1); - a(r2); - }).Returns(task); - - var message = new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim Watson" - }; - - mockProducer.Setup(x => x.Send(It.IsAny(), It.IsAny(), It.IsAny>())); - - // Act - var bus = new ServiceConnect.Bus(mockConfiguration.Object); - bus.SendRequest(message, action, null); - - // Assert - mockRequestConfiguration.Verify(x => x.SetHandler(It.IsAny>()), Times.Exactly(1)); - Assert.Equal(2, count); - Assert.True(responses.Contains(r1)); - Assert.True(responses.Contains(r2)); - } - - [Fact] - public void SendingRequestToMultipleEndpointsWithCallbackShouldSendMessageToSpecifiedEndpoints() - { - // Arrange - var mockConfiguration = new Mock(); - var mockProducer = new Mock(); - var mockContainer = new Mock(); - var mockRequestConfiguration = new Mock(); - var mockSendMessagePipeline = new Mock(); - mockConfiguration.Setup(x => x.GetSendMessagePipeline()).Returns(mockSendMessagePipeline.Object); - mockConfiguration.Setup(x => x.GetContainer()).Returns(mockContainer.Object); - mockConfiguration.Setup(x => x.GetProducer()).Returns(mockProducer.Object); - mockConfiguration.SetupGet(x => x.TransportSettings).Returns(new TransportSettings()); - mockConfiguration.Setup(x => x.GetRequestConfiguration(It.IsAny())).Returns(mockRequestConfiguration.Object); - var task = new Task(() => { }); - mockRequestConfiguration.Setup(x => x.SetHandler(It.IsAny>())).Returns(task); - - var message = new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim Watson" - }; - - - // Act - var bus = new ServiceConnect.Bus(mockConfiguration.Object); - bus.SendRequest(new List { "test1", "test2" }, message, x => { }); - - // Assert - - mockSendMessagePipeline.Verify(x => x.ExecuteSendMessagePipeline(It.IsAny(), It.IsAny(), It.IsAny>(), "test1"), Times.Once); - mockSendMessagePipeline.Verify(x => x.ExecuteSendMessagePipeline(It.IsAny(), It.IsAny(), It.IsAny>(), "test2"), Times.Once); - } - - [Fact] - public void SendingRequestToMultipleEndpointsSynchronouslyShouldReturnResponses() - { - // Arrange - var mockConfiguration = new Mock(); - var mockProducer = new Mock(); - var mockContainer = new Mock(); - var mockRequestConfiguration = new Mock(); - var mockSendMessagePipeline = new Mock(); - mockConfiguration.Setup(x => x.GetSendMessagePipeline()).Returns(mockSendMessagePipeline.Object); - mockConfiguration.Setup(x => x.GetContainer()).Returns(mockContainer.Object); - mockConfiguration.Setup(x => x.GetProducer()).Returns(mockProducer.Object); - mockConfiguration.SetupGet(x => x.TransportSettings).Returns(new TransportSettings()); - mockConfiguration.Setup(x => x.GetRequestConfiguration(It.IsAny())).Returns(mockRequestConfiguration.Object); - var task = new Task(() => { }); - - Action action = null; - mockRequestConfiguration.Setup(x => x.SetHandler(It.IsAny>())).Returns(task).Callback>(r => - { - action = r; - }); - - var message = new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim Watson" - }; - - var r1 = new FakeMessage2(Guid.NewGuid()); - var r2 = new FakeMessage2(Guid.NewGuid()); - - - mockSendMessagePipeline.Setup(x => x.ExecuteSendMessagePipeline(It.IsAny(), It.IsAny(), It.IsAny>(), "test1")).Callback(() => - { - action(r1); - }); - - mockSendMessagePipeline.Setup(x => x.ExecuteSendMessagePipeline(It.IsAny(), It.IsAny(), It.IsAny>(), "test2")).Callback(() => - { - action(r2); - task.Start(); - }); - - // Act - var bus = new ServiceConnect.Bus(mockConfiguration.Object); - IList responses = bus.SendRequest(new List{ "test1", "test2" }, message, null, 1000); - - // Assert - Assert.Equal(2, responses.Count); - Assert.True(responses.Contains(r1)); - Assert.True(responses.Contains(r2)); - } - - [Fact] - public void SendingRequestToMultipleEndpointsSynchronouslyShouldSendCommandsToSpecifiedEndpoints() - { - // Arrange - var mockConfiguration = new Mock(); - var mockProducer = new Mock(); - var mockContainer = new Mock(); - var mockRequestConfiguration = new Mock(); - var mockSendMessagePipeline = new Mock(); - mockConfiguration.Setup(x => x.GetSendMessagePipeline()).Returns(mockSendMessagePipeline.Object); - mockConfiguration.Setup(x => x.GetContainer()).Returns(mockContainer.Object); - mockConfiguration.Setup(x => x.GetProducer()).Returns(mockProducer.Object); - mockConfiguration.SetupGet(x => x.TransportSettings).Returns(new TransportSettings()); - mockConfiguration.Setup(x => x.GetRequestConfiguration(It.IsAny())).Returns(mockRequestConfiguration.Object); - var task = new Task(() => { }); - mockRequestConfiguration.Setup(x => x.SetHandler(It.IsAny>())).Returns(task); - - var message = new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim Watson" - }; - - mockSendMessagePipeline.Setup(x => x.ExecuteSendMessagePipeline(It.IsAny(), It.IsAny(), It.IsAny>(), "test2")).Callback(task.Start); - - - // Act - var bus = new ServiceConnect.Bus(mockConfiguration.Object); - var response = bus.SendRequest(new List - { - "test1", - "test2" - }, message, null, 1000); - - // Assert - mockSendMessagePipeline.Verify(x => x.ExecuteSendMessagePipeline(It.IsAny(), It.IsAny(), It.IsAny>(), "test1"), Times.Once); - mockSendMessagePipeline.Verify(x => x.ExecuteSendMessagePipeline(It.IsAny(), It.IsAny(), It.IsAny>(), "test2"), Times.Once); - } - - [Fact] - public void PublishRequestShouldPublishMessagesAndReturnResponses() - { - // Arrange - var mockConfiguration = new Mock(); - var mockProducer = new Mock(); - var mockContainer = new Mock(); - var mockProessManagerFinder = new Mock(); - var mockRequestConfiguration = new Mock(); - - var mockSendMessagePipeline = new Mock(); - mockConfiguration.Setup(x => x.GetSendMessagePipeline()).Returns(mockSendMessagePipeline.Object); - - mockConfiguration.Setup(x => x.GetContainer()).Returns(mockContainer.Object); - mockConfiguration.Setup(x => x.GetProcessManagerFinder()).Returns(mockProessManagerFinder.Object); - mockConfiguration.Setup(x => x.GetProducer()).Returns(mockProducer.Object); - mockConfiguration.SetupGet(x => x.TransportSettings).Returns(new TransportSettings()); - - mockConfiguration.Setup(x => x.GetRequestConfiguration(It.IsAny())).Returns(mockRequestConfiguration.Object); - var task = new Task(() => { }); - - Action action = null; - mockRequestConfiguration.Setup(x => x.SetHandler(It.IsAny>())).Returns(task).Callback>(r => - { - action = r; - }); - - var message = new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim Watson" - }; - - var r1 = new FakeMessage2(Guid.NewGuid()); - var r2 = new FakeMessage2(Guid.NewGuid()); - - mockSendMessagePipeline.Setup(x => x.ExecutePublishMessagePipeline(It.IsAny(), It.IsAny(), It.IsAny>(), It.IsAny())).Callback(() => - { - action(r1); - action(r2); - task.Start(); - }); - - // Act - var bus = new ServiceConnect.Bus(mockConfiguration.Object); - var responses = bus.PublishRequest(message, 1, null, 1000); - - // Assert - Assert.Equal(2, responses.Count); - Assert.True(responses.Contains(r1)); - Assert.True(responses.Contains(r2)); - } - - [Fact] - public void CustomExceptionHandlerShouldBeCalledIfConsumeMessageEventThrows() - { - // Arrange - bool actionCalled = false; - Action action = exception => { actionCalled = true; }; - _mockConfiguration.Setup(x => x.ExceptionHandler).Returns(action); - - var bus = new ServiceConnect.Bus(_mockConfiguration.Object); - - var handlerReferences = new List - { - new HandlerReference - { - HandlerType = typeof (FakeHandler1), - MessageType = typeof (FakeMessage1) - }, - new HandlerReference - { - HandlerType = typeof (FakeHandler2), - MessageType = typeof (FakeMessage2) - } - }; - - var headers = new Dictionary(); - - _mockContainer.Setup(x => x.GetHandlerTypes()).Returns(handlerReferences); - - _mockConsumer.Setup(x => x.StartConsuming(It.IsAny(), It.IsAny>(), It.Is(y => AssignEventHandler(y)), It.IsAny())); - - _mockProcessMessagePipeline.Setup(x => x.ExecutePipeline(It.IsAny(), It.IsAny(), It.IsAny())).Throws(new Exception()); - - bus.StartConsuming(); - - // Act - _fakeEventHandler(Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim Watson" - })), typeof(FakeMessage1).FullName, headers); - - // Assert - Assert.True(actionCalled); - } - - [Fact] - public void RouteShouldSendCommandWithRoutingSlipHeader() - { - // Arrange - var mockConfiguration = new Mock(); - var mockProducer = new Mock(); - var mockContainer = new Mock(); - var mockProessManagerFinder = new Mock(); - var mockSendMessagePipeline = new Mock(); - - mockConfiguration.Setup(x => x.GetSendMessagePipeline()).Returns(mockSendMessagePipeline.Object); - mockConfiguration.Setup(x => x.GetContainer()).Returns(mockContainer.Object); - mockConfiguration.Setup(x => x.GetProcessManagerFinder()).Returns(mockProessManagerFinder.Object); - mockConfiguration.Setup(x => x.GetProducer()).Returns(mockProducer.Object); - mockConfiguration.SetupGet(x => x.TransportSettings).Returns(new TransportSettings()); - - var message = new FakeMessage1(Guid.NewGuid()) - { - Username = "Jakub Pachansky" - }; - - const string endPoint1 = "MyEndPoint1"; - const string endPoint2 = "MyEndPoint2"; - - mockProducer.Setup(x => x.Send(endPoint1, It.IsAny(), It.IsAny(), It.IsAny>())); - - // Act - var bus = new ServiceConnect.Bus(mockConfiguration.Object); - bus.Route(message, new List { endPoint1, endPoint2 }); - - // Assert - mockSendMessagePipeline.Setup(x => x.ExecuteSendMessagePipeline(It.IsAny(), It.IsAny(), It.Is>(i => i.Count == 1), It.IsAny())); - mockSendMessagePipeline.Setup(x => x.ExecuteSendMessagePipeline(It.IsAny(), It.IsAny(), It.Is>(i => i.ContainsKey("RoutingSlip")), It.IsAny())); - mockSendMessagePipeline.Setup(x => x.ExecuteSendMessagePipeline(It.IsAny(), It.IsAny(), It.Is>(i => i.ContainsValue("[\"MyEndPoint2\"]")), It.IsAny())); - - } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.UnitTests/BusTests/BusConfigurationTests.cs b/src/ServiceConnect.UnitTests/BusTests/BusConfigurationTests.cs new file mode 100644 index 000000000..eacd356b1 --- /dev/null +++ b/src/ServiceConnect.UnitTests/BusTests/BusConfigurationTests.cs @@ -0,0 +1,32 @@ +using ServiceConnect.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.BusTests; + +public class BusConfigurationTests +{ + [Fact] + public void BusConfiguration_HasCorrectDefaults() + { + var config = new BusConfiguration(); + + Assert.True(config.ScanForMessageHandlers); + Assert.True(config.AutoStartConsuming); + Assert.False(config.EnableProcessManagerTimeouts); + Assert.Equal(1, config.ConsumerCount); + Assert.Null(config.ExceptionHandler); + } + + [Fact] + public void PipelineConfiguration_StartsWithEmptyLists() + { + var config = new BusConfiguration(); + var pipeline = config.Pipeline; + + Assert.Empty(pipeline.BeforeConsumingFilters); + Assert.Empty(pipeline.AfterConsumingFilters); + Assert.Empty(pipeline.OutgoingFilters); + Assert.Empty(pipeline.MessageProcessingMiddleware); + Assert.Empty(pipeline.SendMessageMiddleware); + } +} diff --git a/src/ServiceConnect.UnitTests/BusTests/BusCoreTests.cs b/src/ServiceConnect.UnitTests/BusTests/BusCoreTests.cs new file mode 100644 index 000000000..2ea843569 --- /dev/null +++ b/src/ServiceConnect.UnitTests/BusTests/BusCoreTests.cs @@ -0,0 +1,1646 @@ +using System; +using System.Buffers; +using System.Collections.Generic; +using System.Linq; +using System.Reflection; +using System.Threading; +using System.Threading.Tasks; +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging; +using Moq; +using ServiceConnect.Interfaces.Exceptions; +using ServiceConnect; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Interfaces.Options; +using ServiceConnect.Services; +using ServiceConnect.UnitTests.Fakes; +using ServiceConnect.UnitTests.Fakes.Messages; +using Xunit; + +namespace ServiceConnect.UnitTests.BusTests; + +public class BusCoreTests +{ + private readonly Mock _mockSerializer; + private readonly Mock _mockFilterPipeline; + private readonly Mock _mockSendPipeline; + private readonly Mock _mockRequestReplyManager; + private readonly Mock _mockConfig; + private readonly Mock _mockPipelineConfig; + private readonly Mock> _mockLogger; + private readonly Mock _mockQueueConfig; + private readonly Mock _mockDispatcher; + private readonly IReadOnlyList _handlerReferences; + private readonly IServiceScopeFactory _scopeFactory; + private readonly ConsumeScopeAccessor _scopeAccessor; + private readonly Bus _bus; + + public BusCoreTests() + { + _mockSerializer = new Mock(); + _mockFilterPipeline = new Mock(); + _mockSendPipeline = new Mock(); + _mockRequestReplyManager = new Mock(); + _mockConfig = new Mock(); + _mockPipelineConfig = new Mock(); + // Default: no outgoing filters registered — Bus takes the fast path + _mockPipelineConfig.Setup(x => x.OutgoingFilters).Returns([]); + _mockLogger = new Mock>(); + _mockQueueConfig = new Mock(); + _mockQueueConfig.Setup(x => x.QueueName).Returns("test-queue"); + + // Default: filters pass through + _mockFilterPipeline.Setup(x => x.ExecuteOutgoingFiltersAsync(It.IsAny(), It.IsAny())).ReturnsAsync(FilterAction.Continue); + _mockSerializer.SetupSerializeAny([1, 2, 3]); + + _mockDispatcher = new Mock(); + _handlerReferences = []; + _scopeFactory = new ServiceCollection().BuildServiceProvider().GetRequiredService(); + _scopeAccessor = new ConsumeScopeAccessor(); + + _bus = new Bus( + _mockSerializer.Object, + _mockFilterPipeline.Object, + _mockSendPipeline.Object, + _mockRequestReplyManager.Object, + _mockLogger.Object, + _mockQueueConfig.Object, + _mockDispatcher.Object, + _handlerReferences, + _mockPipelineConfig.Object, + _scopeFactory, + _scopeAccessor); + } + + [Fact] + public void IsConsuming_ShouldBeFalse_WhenNotConsuming() + { + Assert.False(_bus.IsConsuming); + } + + [Fact] + public async Task StartConsumingAsync_ShouldThrow_WhenNoConsumerRegistered() + { + await Assert.ThrowsAsync(() => _bus.StartConsumingAsync()); + } + + [Fact] + public async Task StartConsumingAsync_ShouldSetIsConsumingToTrue_WhenConsumerRegistered() + { + // Arrange + var mockConsumer = new Mock(); + mockConsumer.Setup(x => x.StartConsumingAsync(It.IsAny(), It.IsAny>(), It.IsAny())) + .Returns(Task.CompletedTask); + + var bus = new Bus( + _mockSerializer.Object, + _mockFilterPipeline.Object, + _mockSendPipeline.Object, + _mockRequestReplyManager.Object, + _mockLogger.Object, + _mockQueueConfig.Object, + _mockDispatcher.Object, + _handlerReferences, + _mockPipelineConfig.Object, + _scopeFactory, + _scopeAccessor, + mockConsumer.Object); + + // Act + await bus.StartConsumingAsync(); + + // Assert + Assert.True(bus.IsConsuming); + } + + [Fact] + public async Task StopConsumingAsync_ShouldSetIsConsumingToFalse() + { + // StopConsuming can be called even without starting (no consumer needed) + await _bus.StopConsumingAsync(); + Assert.False(_bus.IsConsuming); + } + + [Fact] + public async Task DisposeAsync_ShouldSetIsConsumingToFalse() + { + await _bus.DisposeAsync(); + Assert.False(_bus.IsConsuming); + } + + [Fact] + public async Task DisposeAsync_DoesNotBlockOnConsumerDispose() + { + // Bus.DisposeAsync no longer calls IConsumer.DisposeAsync — the IConsumer is a DI + // singleton and the host's IServiceProvider disposes it on shutdown. Even if a hostile + // mock would block on its own DisposeAsync, the Bus dispose path is decoupled from it. + var releaseDispose = new TaskCompletionSource(); + var mockConsumer = new Mock(); + mockConsumer + .Setup(x => x.StartConsumingAsync(It.IsAny(), It.IsAny>(), It.IsAny())) + .Returns(Task.CompletedTask); + mockConsumer + .Setup(x => x.DisposeAsync()) + .Returns(new ValueTask(releaseDispose.Task)); + + var bus = new Bus( + _mockSerializer.Object, + _mockFilterPipeline.Object, + _mockSendPipeline.Object, + _mockRequestReplyManager.Object, + _mockLogger.Object, + _mockQueueConfig.Object, + _mockDispatcher.Object, + _handlerReferences, + _mockPipelineConfig.Object, + _scopeFactory, + _scopeAccessor, + mockConsumer.Object); + + await bus.StartConsumingAsync(); + + var disposeTask = bus.DisposeAsync().AsTask(); + await Task.WhenAny(disposeTask, Task.Delay(500)); + + Assert.True(disposeTask.IsCompleted); + mockConsumer.Verify(x => x.DisposeAsync(), Times.Never); + } + + [Fact] + public async Task PublishAsync_ShouldSerializeAndPublish() + { + // Arrange — no outgoing filters (fast path; filter pipeline is not called) + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + var messageBytes = new byte[] { 1, 2, 3 }; + _mockSerializer.SetupSerialize(message, messageBytes); + _mockSendPipeline.Setup(x => x.ExecutePublishMessagePipelineAsync( + It.Is(ctx => + ctx.MessageType == typeof(FakeMessage1) && + ctx.MessageBytes.ToArray().SequenceEqual(messageBytes) && + ctx.EndPoint == null), + It.IsAny())) + .Returns(Task.CompletedTask); + + // Act + await _bus.PublishAsync(message); + + // Assert + _mockSerializer.VerifySerialize(message, Times.Once); + _mockFilterPipeline.Verify(x => x.ExecuteOutgoingFiltersAsync(It.IsAny(), It.IsAny()), Times.Never); + _mockSendPipeline.Verify(x => x.ExecutePublishMessagePipelineAsync( + It.Is(ctx => + ctx.MessageType == typeof(FakeMessage1) && + ctx.MessageBytes.ToArray().SequenceEqual(messageBytes) && + ctx.EndPoint == null), + It.IsAny()), Times.Once); + } + + [Fact] + public async Task PublishAsync_WithOutgoingFilters_ShouldExecuteFilterPipeline() + { + // Arrange — bus created with outgoing filters registered; filter pipeline must be invoked + var pipelineConfigWithFilter = new Mock(); + pipelineConfigWithFilter.Setup(x => x.OutgoingFilters).Returns([typeof(object)]); + var busWithFilters = new Bus( + _mockSerializer.Object, + _mockFilterPipeline.Object, + _mockSendPipeline.Object, + _mockRequestReplyManager.Object, + _mockLogger.Object, + _mockQueueConfig.Object, + _mockDispatcher.Object, + _handlerReferences, + pipelineConfigWithFilter.Object, + _scopeFactory, + _scopeAccessor); + + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + var messageBytes = new byte[] { 1, 2, 3 }; + _mockSerializer.SetupSerialize(message, messageBytes); + _mockSendPipeline.Setup(x => x.ExecutePublishMessagePipelineAsync( + It.Is(ctx => + ctx.MessageType == typeof(FakeMessage1) && + ctx.MessageBytes.ToArray().SequenceEqual(messageBytes) && + ctx.EndPoint == null), + It.IsAny())) + .Returns(Task.CompletedTask); + + // Act + await busWithFilters.PublishAsync(message); + + // Assert + _mockFilterPipeline.Verify(x => x.ExecuteOutgoingFiltersAsync(It.IsAny(), It.IsAny()), Times.Once); + _mockSendPipeline.Verify(x => x.ExecutePublishMessagePipelineAsync( + It.Is(ctx => + ctx.MessageType == typeof(FakeMessage1) && + ctx.MessageBytes.ToArray().SequenceEqual(messageBytes) && + ctx.EndPoint == null), + It.IsAny()), Times.Once); + } + + [Fact] + public async Task PublishAsync_WhenFilterBlocksMessage_ThrowsOutgoingFiltersBlocked() + { + // Arrange — must have outgoing filters registered so the filter pipeline is invoked + _mockFilterPipeline.Setup(x => x.ExecuteOutgoingFiltersAsync(It.IsAny(), It.IsAny())).ReturnsAsync(FilterAction.Stop); + var pipelineConfigWithFilter = new Mock(); + pipelineConfigWithFilter.Setup(x => x.OutgoingFilters).Returns([typeof(object)]); + var busWithFilters = new Bus( + _mockSerializer.Object, + _mockFilterPipeline.Object, + _mockSendPipeline.Object, + _mockRequestReplyManager.Object, + _mockLogger.Object, + _mockQueueConfig.Object, + _mockDispatcher.Object, + _handlerReferences, + pipelineConfigWithFilter.Object, + _scopeFactory, + _scopeAccessor); + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + _mockSerializer.SetupSerialize(message, [1, 2, 3]); + + var ex = await Assert.ThrowsAsync( + () => busWithFilters.PublishAsync(message)); + + Assert.Contains("published", ex.Message, StringComparison.OrdinalIgnoreCase); + _mockSendPipeline.Verify(x => x.ExecutePublishMessagePipelineAsync( + It.IsAny(), It.IsAny()), + Times.Never); + } + + [Fact] + public async Task PublishAsync_WithRoutingKey_ShouldIncludeRoutingKeyInHeaders() + { + // Arrange + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + var options = new PublishOptions { RoutingKey = "my-routing-key" }; + + _mockSendPipeline.Setup(x => x.ExecutePublishMessagePipelineAsync( + It.Is(ctx => ctx.EndPoint == null), + It.IsAny())) + .Returns(Task.CompletedTask); + + // Act + await _bus.PublishAsync(message, options); + + // Assert + _mockSendPipeline.Verify(x => x.ExecutePublishMessagePipelineAsync( + It.Is(ctx => + ctx.MessageType == typeof(FakeMessage1) && + ctx.EndPoint == null && + ctx.Headers.ContainsKey("RoutingKey") && + ctx.Headers["RoutingKey"] == "my-routing-key"), + It.IsAny()), Times.Once); + } + + [Fact] + public async Task PublishAsync_WithRoutingKey_WhenProducerDoesNotSupportIt_LogsWarningOnce() + { + // A producer whose SupportsRoutingKey returns false should trigger exactly one + // LogWarning per Bus instance so operators see the silent-drop scenario once, + // even when PublishAsync is called multiple times with a routing key. + var mockProducer = new Mock(); + mockProducer.Setup(x => x.SupportsRoutingKey).Returns(false); + var mockLogger = new Mock>(); + var busWithShimProducer = new Bus( + _mockSerializer.Object, + _mockFilterPipeline.Object, + _mockSendPipeline.Object, + _mockRequestReplyManager.Object, + mockLogger.Object, + _mockQueueConfig.Object, + _mockDispatcher.Object, + _handlerReferences, + _mockPipelineConfig.Object, + _scopeFactory, + _scopeAccessor, + producer: mockProducer.Object); + + _mockSendPipeline + .Setup(x => x.ExecutePublishMessagePipelineAsync(It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + var options = new PublishOptions { RoutingKey = "some-key" }; + + // Call twice — the warning must fire exactly once (once-per-bus latch). + await busWithShimProducer.PublishAsync(message, options); + await busWithShimProducer.PublishAsync(message, options); + + mockLogger.Verify( + x => x.Log( + LogLevel.Warning, + It.IsAny(), + It.Is((v, _) => v.ToString()!.Contains("SupportsRoutingKey=false")), + null, + It.IsAny>()), + Times.Once); + } + + [Fact] + public async Task PublishAsync_WithRoutingKey_WhenProducerSupportsIt_DoesNotLogWarning() + { + // A producer with SupportsRoutingKey=true must never trigger the shim-drop warning, + // even when a routing key is supplied on every call. + var mockProducer = new Mock(); + mockProducer.Setup(x => x.SupportsRoutingKey).Returns(true); + var mockLogger = new Mock>(); + var busWithRealProducer = new Bus( + _mockSerializer.Object, + _mockFilterPipeline.Object, + _mockSendPipeline.Object, + _mockRequestReplyManager.Object, + mockLogger.Object, + _mockQueueConfig.Object, + _mockDispatcher.Object, + _handlerReferences, + _mockPipelineConfig.Object, + _scopeFactory, + _scopeAccessor, + producer: mockProducer.Object); + + _mockSendPipeline + .Setup(x => x.ExecutePublishMessagePipelineAsync(It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + var options = new PublishOptions { RoutingKey = "some-key" }; + + await busWithRealProducer.PublishAsync(message, options); + + mockLogger.Verify( + x => x.Log( + LogLevel.Warning, + It.IsAny(), + It.Is((v, _) => v.ToString()!.Contains("SupportsRoutingKey=false")), + null, + It.IsAny>()), + Times.Never); + } + + [Fact] + public void PublishOptions_IsReadonlyRecordStruct() + { + // PublishOptions is a readonly record struct so each PublishAsync call + // captures a snapshot by value. A mutable sealed class would let a + // caller mutate Headers/RoutingKey on a shared instance while a + // concurrent PublishAsync was reading them mid-flight. + var type = typeof(PublishOptions); + + Assert.True(type.IsValueType); + Assert.True(type.GetMethod("$", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance) is null + || type.GetMethods().Any(m => m.Name == "Equals" && m.ReturnType == typeof(bool)), + "record semantics expected"); + foreach (var prop in type.GetProperties()) + { + var setter = prop.SetMethod; + Assert.NotNull(setter); + var modreqs = setter!.ReturnParameter.GetRequiredCustomModifiers(); + Assert.Contains(modreqs, t => t.Name == "IsExternalInit"); + } + } + + [Fact] + public void SendAndPublishOptions_HeadersTypedAsReadOnlyDictionary() + { + // The Headers contract is IReadOnlyDictionary? so the + // type system prevents callers from sharing a mutable instance and + // concurrently mutating it during BuildHeadersDirect's foreach, which + // would throw "Collection was modified" from inside the send path. + Assert.Equal( + typeof(IReadOnlyDictionary), + typeof(SendOptions).GetProperty(nameof(SendOptions.Headers))!.PropertyType); + Assert.Equal( + typeof(IReadOnlyDictionary), + typeof(PublishOptions).GetProperty(nameof(PublishOptions.Headers))!.PropertyType); + } + + [Fact] + public async Task PublishAsync_HeadersPostMutationDoesNotAffectInFlightSend() + { + // BuildHeadersDirect must snapshot the caller's headers before handing + // them to the send pipeline. Mutations to the caller's dictionary after + // PublishAsync returns must not reach the transport. Verify by capturing + // the dictionary the pipeline receives, then mutating the source and + // asserting the captured view is unchanged. + var sharedHeaders = new Dictionary { ["caller-header"] = "original" }; + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + + IDictionary? captured = null; + _mockSendPipeline.Setup(x => x.ExecutePublishMessagePipelineAsync( + It.IsAny(), It.IsAny())) + .Callback((ctx, _) => captured = ctx.Headers) + .Returns(Task.CompletedTask); + + await _bus.PublishAsync(message, new PublishOptions { Headers = sharedHeaders }); + + Assert.NotNull(captured); + Assert.Equal("original", captured!["caller-header"]); + + // caller mutation post-publish must not reach back into the captured map + sharedHeaders["caller-header"] = "after-send"; + sharedHeaders["new-key"] = "late"; + + Assert.Equal("original", captured["caller-header"]); + Assert.False(captured.ContainsKey("new-key")); + } + + [Fact] + public async Task PublishAsync_FastPath_StampsCorrelationIdHeader() + { + var correlationId = Guid.NewGuid(); + var message = new FakeMessage1(correlationId) { Username = "Tim" }; + + await _bus.PublishAsync(message); + + _mockSendPipeline.Verify(x => x.ExecutePublishMessagePipelineAsync( + It.Is(ctx => + ctx.MessageType == typeof(FakeMessage1) && + ctx.EndPoint == null && + ctx.Headers.ContainsKey(HeaderKeys.CorrelationId) && + ctx.Headers[HeaderKeys.CorrelationId] == correlationId.ToString()), + It.IsAny()), Times.Once); + } + + [Fact] + public async Task PublishAsync_FilterPath_StampsCorrelationIdHeader() + { + var correlationId = Guid.NewGuid(); + var pipelineConfigWithFilter = new Mock(); + pipelineConfigWithFilter.Setup(x => x.OutgoingFilters).Returns([typeof(object)]); + var busWithFilters = new Bus( + _mockSerializer.Object, + _mockFilterPipeline.Object, + _mockSendPipeline.Object, + _mockRequestReplyManager.Object, + _mockLogger.Object, + _mockQueueConfig.Object, + _mockDispatcher.Object, + _handlerReferences, + pipelineConfigWithFilter.Object, + _scopeFactory, + _scopeAccessor); + var message = new FakeMessage1(correlationId) { Username = "Tim" }; + + await busWithFilters.PublishAsync(message); + + _mockSendPipeline.Verify(x => x.ExecutePublishMessagePipelineAsync( + It.Is(ctx => + ctx.MessageType == typeof(FakeMessage1) && + ctx.EndPoint == null && + ctx.Headers.ContainsKey(HeaderKeys.CorrelationId) && + ctx.Headers[HeaderKeys.CorrelationId] == correlationId.ToString()), + It.IsAny()), Times.Once); + } + + [Fact] + public async Task PublishAsync_WithOutgoingFilters_RunsFilterInOwnScope() + { + // Each outbound call must establish a fresh per-call DI scope so filters + // can resolve scoped services. The accessor must see a non-null Current + // during filter execution and revert once the filter returns. + var services = new ServiceCollection(); + var serviceProvider = services.BuildServiceProvider(); + var scopeFactory = serviceProvider.GetRequiredService(); + var scopeAccessor = new ConsumeScopeAccessor(); + + IServiceProvider? providerDuringFilter = null; + _mockFilterPipeline + .Setup(x => x.ExecuteOutgoingFiltersAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(() => + { + providerDuringFilter = scopeAccessor.Current; + return FilterAction.Continue; + }); + + var pipelineConfigWithFilter = new Mock(); + pipelineConfigWithFilter.Setup(x => x.OutgoingFilters).Returns([typeof(object)]); + + var busWithFilters = new Bus( + _mockSerializer.Object, + _mockFilterPipeline.Object, + _mockSendPipeline.Object, + _mockRequestReplyManager.Object, + _mockLogger.Object, + _mockQueueConfig.Object, + _mockDispatcher.Object, + _handlerReferences, + pipelineConfigWithFilter.Object, + scopeFactory, + scopeAccessor); + + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + + await busWithFilters.PublishAsync(message); + + Assert.NotNull(providerDuringFilter); + // Accessor must revert to no-scope once the filter returns. + Assert.Throws(() => _ = scopeAccessor.Current); + } + + [Fact] + public async Task PublishAsync_TwoCalls_CreateDistinctOutgoingFilterScopes() + { + // Per-call isolation: the second call must not share a scope with the first. + var services = new ServiceCollection(); + services.AddScoped(); + var serviceProvider = services.BuildServiceProvider(); + var scopeFactory = serviceProvider.GetRequiredService(); + var scopeAccessor = new ConsumeScopeAccessor(); + + var seenMarkers = new List(); + _mockFilterPipeline + .Setup(x => x.ExecuteOutgoingFiltersAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(() => + { + seenMarkers.Add(scopeAccessor.Current.GetRequiredService()); + return FilterAction.Continue; + }); + + var pipelineConfigWithFilter = new Mock(); + pipelineConfigWithFilter.Setup(x => x.OutgoingFilters).Returns([typeof(object)]); + + var busWithFilters = new Bus( + _mockSerializer.Object, + _mockFilterPipeline.Object, + _mockSendPipeline.Object, + _mockRequestReplyManager.Object, + _mockLogger.Object, + _mockQueueConfig.Object, + _mockDispatcher.Object, + _handlerReferences, + pipelineConfigWithFilter.Object, + scopeFactory, + scopeAccessor); + + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + + await busWithFilters.PublishAsync(message); + await busWithFilters.PublishAsync(message); + + Assert.Equal(2, seenMarkers.Count); + Assert.NotSame(seenMarkers[0], seenMarkers[1]); + } + + [Fact] + public async Task SendAsync_StampsCorrelationIdHeader() + { + var correlationId = Guid.NewGuid(); + var message = new FakeMessage1(correlationId) { Username = "Tim" }; + + await _bus.SendAsync(message); + + _mockSendPipeline.Verify(x => x.ExecuteSendMessagePipelineAsync( + It.Is(ctx => + ctx.MessageType == typeof(FakeMessage1) && + ctx.EndPoint == null && + ctx.Headers.ContainsKey(HeaderKeys.CorrelationId) && + ctx.Headers[HeaderKeys.CorrelationId] == correlationId.ToString()), + It.IsAny()), Times.Once); + } + + [Fact] + public async Task SendRequestAsync_StampsCorrelationIdHeader() + { + var correlationId = Guid.NewGuid(); + var message = new FakeMessage1(correlationId) { Username = "Tim" }; + _mockRequestReplyManager.Setup(x => x.SendRequestAsync( + It.IsAny(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .ReturnsAsync(message); + + await _bus.SendRequestAsync(message); + + _mockRequestReplyManager.Verify(x => x.SendRequestAsync( + message, + It.Is>(h => + h.ContainsKey(HeaderKeys.CorrelationId) && + h[HeaderKeys.CorrelationId] == correlationId.ToString()), + It.IsAny(), + It.IsAny()), Times.Once); + } + + [Fact] + public async Task SendAsync_ShouldSerializeAndSend() + { + // Arrange + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + var messageBytes = new byte[] { 1, 2, 3 }; + _mockSerializer.SetupSerialize(message, messageBytes); + _mockSendPipeline.Setup(x => x.ExecuteSendMessagePipelineAsync( + It.Is(ctx => + ctx.MessageType == typeof(FakeMessage1) && + ctx.MessageBytes.ToArray().SequenceEqual(messageBytes) && + ctx.EndPoint == null), + It.IsAny())) + .Returns(Task.CompletedTask); + + // Act + await _bus.SendAsync(message); + + // Assert + _mockSerializer.VerifySerialize(message, Times.Once); + _mockSendPipeline.Verify(x => x.ExecuteSendMessagePipelineAsync( + It.Is(ctx => + ctx.MessageType == typeof(FakeMessage1) && + ctx.MessageBytes.ToArray().SequenceEqual(messageBytes) && + ctx.EndPoint == null), + It.IsAny()), Times.Once); + } + + [Fact] + public async Task SendAsync_WithEndPoint_ShouldSendToEndPoint() + { + // Arrange + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + var options = new SendOptions { EndPoint = "MyEndPoint" }; + + _mockSendPipeline.Setup(x => x.ExecuteSendMessagePipelineAsync( + It.Is(ctx => ctx.EndPoint == "MyEndPoint"), + It.IsAny())) + .Returns(Task.CompletedTask); + + // Act + await _bus.SendAsync(message, options); + + // Assert + _mockSendPipeline.Verify(x => x.ExecuteSendMessagePipelineAsync( + It.Is(ctx => + ctx.MessageType == typeof(FakeMessage1) && + ctx.EndPoint == "MyEndPoint"), + It.IsAny()), Times.Once); + } + + [Fact] + public async Task SendToManyAsync_FansOut_ToEachEndpoint() + { + // Arrange + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + var capturedEndpoints = new List(); + var capturedHeaders = new List>(); + + _mockSendPipeline + .Setup(x => x.ExecuteSendMessagePipelineAsync(It.IsAny(), It.IsAny())) + .Callback((ctx, _) => + { + capturedEndpoints.Add(ctx.EndPoint); + capturedHeaders.Add(ctx.Headers); + }) + .Returns(Task.CompletedTask); + + // Act + await _bus.SendToManyAsync(message, ["queue-a", "queue-b", "queue-c"]); + + // Assert: pipeline called once per endpoint, in order + Assert.Equal(3, capturedEndpoints.Count); + Assert.Equal("queue-a", capturedEndpoints[0]); + Assert.Equal("queue-b", capturedEndpoints[1]); + Assert.Equal("queue-c", capturedEndpoints[2]); + + // Serialiser called exactly once — fan-out reuses the bytes across iterations. + _mockSerializer.Verify(x => x.Serialize(It.IsAny(), It.IsAny>()), Times.Once); + + // Each iteration receives a distinct Headers dictionary so middleware cannot + // leak per-endpoint mutations into the next iteration. + Assert.NotSame(capturedHeaders[0], capturedHeaders[1]); + Assert.NotSame(capturedHeaders[1], capturedHeaders[2]); + Assert.NotSame(capturedHeaders[0], capturedHeaders[2]); + } + + [Fact] + public async Task SendToManyAsync_EmptyEndpointList_Throws() + { + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + + var ex = await Assert.ThrowsAsync(() => + _bus.SendToManyAsync(message, [])); + + Assert.Contains("at least one endpoint", ex.Message); + + _mockSendPipeline.Verify(x => x.ExecuteSendMessagePipelineAsync( + It.IsAny(), It.IsAny()), + Times.Never); + } + + [Fact] + public async Task SendToManyAsync_NullEndpointList_ThrowsArgumentNull() + { + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + + await Assert.ThrowsAsync(() => + _bus.SendToManyAsync(message, null!)); + + _mockSendPipeline.Verify(x => x.ExecuteSendMessagePipelineAsync( + It.IsAny(), It.IsAny()), + Times.Never); + } + + [Fact] + public async Task SendAsync_WhenFilterBlocksMessage_ThrowsOutgoingFiltersBlocked() + { + // Arrange — must have outgoing filters registered so the filter pipeline is invoked + _mockFilterPipeline.Setup(x => x.ExecuteOutgoingFiltersAsync(It.IsAny(), It.IsAny())).ReturnsAsync(FilterAction.Stop); + var pipelineConfigWithFilter = new Mock(); + pipelineConfigWithFilter.Setup(x => x.OutgoingFilters).Returns([typeof(object)]); + var busWithFilters = new Bus( + _mockSerializer.Object, + _mockFilterPipeline.Object, + _mockSendPipeline.Object, + _mockRequestReplyManager.Object, + _mockLogger.Object, + _mockQueueConfig.Object, + _mockDispatcher.Object, + _handlerReferences, + pipelineConfigWithFilter.Object, + _scopeFactory, + _scopeAccessor); + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + _mockSerializer.SetupSerialize(message, [1, 2, 3]); + + var ex = await Assert.ThrowsAsync( + () => busWithFilters.SendAsync(message)); + + Assert.Contains("sent", ex.Message, StringComparison.OrdinalIgnoreCase); + _mockSendPipeline.Verify(x => x.ExecuteSendMessagePipelineAsync( + It.IsAny(), It.IsAny()), + Times.Never); + } + + [Fact] + public async Task PublishRequestAsync_DelegatesToRequestReplyManagerPublishMethod() + { + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + var messageBytes = new byte[] { 1, 2, 3 }; + var options = new RequestOptions + { + Headers = new Dictionary + { + ["CustomHeader"] = "CustomValue" + } + }; + + _mockSerializer.SetupSerialize(message, messageBytes); + _mockRequestReplyManager.Setup(x => x.PublishRequestAsync( + message, + It.Is>(h => h.ContainsKey("CustomHeader") && h["CustomHeader"] == "CustomValue"), + options, + It.IsAny>(), + CancellationToken.None)) + .Returns(Task.CompletedTask); + + await _bus.PublishRequestAsync(message, _ => { }, options); + + _mockRequestReplyManager.Verify(x => x.PublishRequestAsync( + message, + It.Is>(h => h.ContainsKey("CustomHeader") && h["CustomHeader"] == "CustomValue"), + options, + It.IsAny>(), + CancellationToken.None), + Times.Once); + _mockRequestReplyManager.Verify(x => x.SendRequestMultiAsync( + It.IsAny(), + It.IsAny>(), + It.IsAny(), + It.IsAny()), + Times.Never); + } + + [Fact] + public async Task PublishRequestAsync_WithEndPoint_ThrowsArgumentException() + { + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + var options = new RequestOptions { EndPoint = "MyEndPoint" }; + + var ex = await Assert.ThrowsAsync( + () => _bus.PublishRequestAsync(message, _ => { }, options)); + + Assert.Equal("options", ex.ParamName); + } + + [Fact] + public async Task PublishRequestAsync_WithEmptyEndPoint_DelegatesToRequestReplyManagerPublishMethod() + { + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + var messageBytes = new byte[] { 1, 2, 3 }; + var options = new RequestOptions { EndPoint = string.Empty }; + + _mockSerializer.SetupSerialize(message, messageBytes); + _mockRequestReplyManager.Setup(x => x.PublishRequestAsync( + message, + It.IsAny>(), + options, + It.IsAny>(), + CancellationToken.None)) + .Returns(Task.CompletedTask); + + await _bus.PublishRequestAsync(message, _ => { }, options); + + _mockRequestReplyManager.Verify(x => x.PublishRequestAsync( + message, + It.IsAny>(), + options, + It.IsAny>(), + CancellationToken.None), + Times.Once); + } + + [Fact] + public async Task PublishRequestAsync_WhenFilterBlocksMessage_ThrowsOutgoingFiltersBlocked() + { + _mockFilterPipeline + .Setup(x => x.ExecuteOutgoingFiltersAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(FilterAction.Stop); + + var pipelineConfigWithFilter = new Mock(); + pipelineConfigWithFilter.Setup(x => x.OutgoingFilters).Returns([typeof(object)]); + + var busWithFilters = new Bus( + _mockSerializer.Object, + _mockFilterPipeline.Object, + _mockSendPipeline.Object, + _mockRequestReplyManager.Object, + _mockLogger.Object, + _mockQueueConfig.Object, + _mockDispatcher.Object, + _handlerReferences, + pipelineConfigWithFilter.Object, + _scopeFactory, + _scopeAccessor); + + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + + await Assert.ThrowsAsync( + () => busWithFilters.PublishRequestAsync(message, _ => { })); + } + + [Fact] + public async Task SendRequestAsync_WhenFilterBlocksMessage_ThrowsOutgoingFiltersBlocked() + { + _mockFilterPipeline + .Setup(x => x.ExecuteOutgoingFiltersAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(FilterAction.Stop); + + var pipelineConfigWithFilter = new Mock(); + pipelineConfigWithFilter.Setup(x => x.OutgoingFilters).Returns([typeof(object)]); + + var busWithFilters = new Bus( + _mockSerializer.Object, + _mockFilterPipeline.Object, + _mockSendPipeline.Object, + _mockRequestReplyManager.Object, + _mockLogger.Object, + _mockQueueConfig.Object, + _mockDispatcher.Object, + _handlerReferences, + pipelineConfigWithFilter.Object, + _scopeFactory, + _scopeAccessor); + + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + + var ex = await Assert.ThrowsAsync( + () => busWithFilters.SendRequestAsync(message)); + + Assert.Equal("Outgoing filters blocked the request message.", ex.Message); + } + + [Fact] + public async Task SendRequestMultiAsync_WhenFilterBlocksMessage_ThrowsOutgoingFiltersBlocked() + { + _mockFilterPipeline + .Setup(x => x.ExecuteOutgoingFiltersAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(FilterAction.Stop); + + var pipelineConfigWithFilter = new Mock(); + pipelineConfigWithFilter.Setup(x => x.OutgoingFilters).Returns([typeof(object)]); + + var busWithFilters = new Bus( + _mockSerializer.Object, + _mockFilterPipeline.Object, + _mockSendPipeline.Object, + _mockRequestReplyManager.Object, + _mockLogger.Object, + _mockQueueConfig.Object, + _mockDispatcher.Object, + _handlerReferences, + pipelineConfigWithFilter.Object, + _scopeFactory, + _scopeAccessor); + + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + + var ex = await Assert.ThrowsAsync( + () => busWithFilters.SendRequestMultiAsync(message)); + + Assert.Equal("Outgoing filters blocked the request message.", ex.Message); + } + + [Fact] + public async Task SendToManyAsync_WhenFilterBlocksMessage_ThrowsOutgoingFiltersBlocked() + { + _mockFilterPipeline + .Setup(x => x.ExecuteOutgoingFiltersAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(FilterAction.Stop); + + var pipelineConfigWithFilter = new Mock(); + pipelineConfigWithFilter.Setup(x => x.OutgoingFilters).Returns([typeof(object)]); + + var busWithFilters = new Bus( + _mockSerializer.Object, + _mockFilterPipeline.Object, + _mockSendPipeline.Object, + _mockRequestReplyManager.Object, + _mockLogger.Object, + _mockQueueConfig.Object, + _mockDispatcher.Object, + _handlerReferences, + pipelineConfigWithFilter.Object, + _scopeFactory, + _scopeAccessor); + + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + _mockSerializer.SetupSerialize(message, [1, 2, 3]); + + var ex = await Assert.ThrowsAsync( + () => busWithFilters.SendToManyAsync(message, ["endpoint1", "endpoint2"])); + + Assert.Contains("multi-endpoint send", ex.Message, StringComparison.OrdinalIgnoreCase); + _mockSendPipeline.Verify(x => x.ExecuteSendMessagePipelineAsync( + It.IsAny(), It.IsAny()), + Times.Never); + } + + [Fact] + public async Task RouteAsync_WhenFilterBlocksMessage_ThrowsOutgoingFiltersBlocked() + { + _mockFilterPipeline + .Setup(x => x.ExecuteOutgoingFiltersAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(FilterAction.Stop); + + var pipelineConfigWithFilter = new Mock(); + pipelineConfigWithFilter.Setup(x => x.OutgoingFilters).Returns([typeof(object)]); + + var busWithFilters = new Bus( + _mockSerializer.Object, + _mockFilterPipeline.Object, + _mockSendPipeline.Object, + _mockRequestReplyManager.Object, + _mockLogger.Object, + _mockQueueConfig.Object, + _mockDispatcher.Object, + _handlerReferences, + pipelineConfigWithFilter.Object, + _scopeFactory, + _scopeAccessor); + + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + _mockSerializer.SetupSerialize(message, [1, 2, 3]); + + var ex = await Assert.ThrowsAsync( + () => busWithFilters.RouteAsync(message, ["destination1"])); + + Assert.Contains("routed", ex.Message, StringComparison.OrdinalIgnoreCase); + _mockSendPipeline.Verify(x => x.ExecuteSendMessagePipelineAsync( + It.IsAny(), It.IsAny()), + Times.Never); + } + + [Fact] + public async Task RequestTimeoutAsync_WithAmbientConsumeHeaders_PreservesCustomHeadersOnly() + { + TimeoutData? captured = null; + var timeoutStore = new Mock(); + timeoutStore + .Setup(x => x.InsertTimeoutAsync(It.IsAny(), It.IsAny())) + .Callback((data, _) => captured = data) + .Returns(Task.CompletedTask); + + var incomingHeaders = new Dictionary + { + ["Custom"] = "value", + [HeaderKeys.RetryCount] = 3, + [HeaderKeys.MessageId] = "managed-message-id", + [HeaderKeys.SourceAddress] = "reply-queue" + }; + + var accessor = CreateConsumeContextAccessorOrFail(); + await using var bus = CreateBusWithTimeoutStoreAndAccessorOrFail(timeoutStore.Object, accessor); + using var scope = PushConsumeContextOrFail(accessor, incomingHeaders); + + await bus.RequestTimeoutAsync(Guid.NewGuid(), TimeSpan.FromMinutes(1)); + + Assert.NotNull(captured); + Assert.Equal("test-queue", captured!.Destination); + Assert.Equal("value", captured.Headers["Custom"]); + Assert.False(captured.Headers.ContainsKey(HeaderKeys.RetryCount)); + Assert.False(captured.Headers.ContainsKey(HeaderKeys.MessageId)); + Assert.False(captured.Headers.ContainsKey(HeaderKeys.SourceAddress)); + } + + [Fact] + public async Task RouteAsync_ShouldSendToFirstDestination_WithRoutingSlipForRemaining() + { + // Arrange + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + var destinations = new List { "Dest1", "Dest2", "Dest3" }; + + _mockSendPipeline.Setup(x => x.ExecuteSendMessagePipelineAsync( + It.Is(ctx => ctx.EndPoint == "Dest1"), + It.IsAny())) + .Returns(Task.CompletedTask); + + // Act + await _bus.RouteAsync(message, destinations); + + // Assert + _mockSendPipeline.Verify(x => x.ExecuteSendMessagePipelineAsync( + It.Is(ctx => + ctx.MessageType == typeof(FakeMessage1) && + ctx.EndPoint == "Dest1" && + ctx.Headers.ContainsKey("RoutingSlip") && + ctx.Headers["RoutingSlip"] == "Dest2,Dest3"), + It.IsAny()), Times.Once); + } + + [Fact] + public async Task RouteAsync_ShouldThrow_WhenNoDestinations() + { + // Arrange + var message = new FakeMessage1(Guid.NewGuid()); + + // Act & Assert + await Assert.ThrowsAsync(() => _bus.RouteAsync(message, [])); + } + + [Fact] + public void Constructor_ShouldThrow_WhenDependencyIsNull() + { + var p = _mockPipelineConfig.Object; + var sf = _scopeFactory; + var sa = _scopeAccessor; + Assert.Throws(() => new Bus(null!, _mockFilterPipeline.Object, _mockSendPipeline.Object, _mockRequestReplyManager.Object, _mockLogger.Object, _mockQueueConfig.Object, _mockDispatcher.Object, _handlerReferences, p, sf, sa)); + Assert.Throws(() => new Bus(_mockSerializer.Object, null!, _mockSendPipeline.Object, _mockRequestReplyManager.Object, _mockLogger.Object, _mockQueueConfig.Object, _mockDispatcher.Object, _handlerReferences, p, sf, sa)); + Assert.Throws(() => new Bus(_mockSerializer.Object, _mockFilterPipeline.Object, null!, _mockRequestReplyManager.Object, _mockLogger.Object, _mockQueueConfig.Object, _mockDispatcher.Object, _handlerReferences, p, sf, sa)); + Assert.Throws(() => new Bus(_mockSerializer.Object, _mockFilterPipeline.Object, _mockSendPipeline.Object, null!, _mockLogger.Object, _mockQueueConfig.Object, _mockDispatcher.Object, _handlerReferences, p, sf, sa)); + Assert.Throws(() => new Bus(_mockSerializer.Object, _mockFilterPipeline.Object, _mockSendPipeline.Object, _mockRequestReplyManager.Object, null!, _mockQueueConfig.Object, _mockDispatcher.Object, _handlerReferences, p, sf, sa)); + Assert.Throws(() => new Bus(_mockSerializer.Object, _mockFilterPipeline.Object, _mockSendPipeline.Object, _mockRequestReplyManager.Object, _mockLogger.Object, null!, _mockDispatcher.Object, _handlerReferences, p, sf, sa)); + Assert.Throws(() => new Bus(_mockSerializer.Object, _mockFilterPipeline.Object, _mockSendPipeline.Object, _mockRequestReplyManager.Object, _mockLogger.Object, _mockQueueConfig.Object, (IMessageDispatcher)null!, _handlerReferences, p, sf, sa)); + Assert.Throws(() => new Bus(_mockSerializer.Object, _mockFilterPipeline.Object, _mockSendPipeline.Object, _mockRequestReplyManager.Object, _mockLogger.Object, _mockQueueConfig.Object, _mockDispatcher.Object, null!, p, sf, sa)); + Assert.Throws(() => new Bus(_mockSerializer.Object, _mockFilterPipeline.Object, _mockSendPipeline.Object, _mockRequestReplyManager.Object, _mockLogger.Object, _mockQueueConfig.Object, _mockDispatcher.Object, _handlerReferences, null!, sf, sa)); + Assert.Throws(() => new Bus(_mockSerializer.Object, _mockFilterPipeline.Object, _mockSendPipeline.Object, _mockRequestReplyManager.Object, _mockLogger.Object, _mockQueueConfig.Object, _mockDispatcher.Object, _handlerReferences, p, null!, sa)); + Assert.Throws(() => new Bus(_mockSerializer.Object, _mockFilterPipeline.Object, _mockSendPipeline.Object, _mockRequestReplyManager.Object, _mockLogger.Object, _mockQueueConfig.Object, _mockDispatcher.Object, _handlerReferences, p, sf, null!)); + } + + // --- MessageId authority tests --- + + [Fact] + public async Task SendAsync_FastPath_StampsMessageIdHeader() + { + // Bus is Bus-authoritative for MessageId; the fast path (no outgoing filters) + // must stamp a non-empty MessageId even when the caller does not supply one. + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + + await _bus.SendAsync(message); + + _mockSendPipeline.Verify(x => x.ExecuteSendMessagePipelineAsync( + It.Is(ctx => + ctx.MessageType == typeof(FakeMessage1) && + ctx.EndPoint == null && + ctx.Headers.ContainsKey(HeaderKeys.MessageId) && + !string.IsNullOrEmpty(ctx.Headers[HeaderKeys.MessageId])), + It.IsAny()), Times.Once); + } + + [Fact] + public async Task SendAsync_FastPath_CallerCannotOverride_MessageId() + { + // Bus stamps MessageId last, so a caller-supplied value in options.Headers + // must be replaced by the Bus-minted GUID. + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + var hostile = "00000000-0000-0000-0000-000000000000"; + var options = new SendOptions + { + Headers = new Dictionary { [HeaderKeys.MessageId] = hostile } + }; + + await _bus.SendAsync(message, options); + + _mockSendPipeline.Verify(x => x.ExecuteSendMessagePipelineAsync( + It.Is(ctx => + ctx.MessageType == typeof(FakeMessage1) && + ctx.EndPoint == null && + ctx.Headers.ContainsKey(HeaderKeys.MessageId) && + ctx.Headers[HeaderKeys.MessageId] != hostile), + It.IsAny()), Times.Once); + } + + [Fact] + public async Task PublishAsync_FilterPath_OutgoingFilterSeesNonEmptyMessageId() + { + // Outgoing filters must be able to read envelope.Headers["MessageId"] + // without a KeyNotFoundException. + Envelope? capturedEnvelope = null; + + _mockFilterPipeline + .Setup(x => x.ExecuteOutgoingFiltersAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync((Envelope env, CancellationToken _) => + { + capturedEnvelope = env; + return FilterAction.Continue; + }); + + var pipelineConfigWithFilter = new Mock(); + pipelineConfigWithFilter.Setup(x => x.OutgoingFilters).Returns([typeof(object)]); + + var busWithFilters = new Bus( + _mockSerializer.Object, + _mockFilterPipeline.Object, + _mockSendPipeline.Object, + _mockRequestReplyManager.Object, + _mockLogger.Object, + _mockQueueConfig.Object, + _mockDispatcher.Object, + _handlerReferences, + pipelineConfigWithFilter.Object, + _scopeFactory, + _scopeAccessor); + + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + + await busWithFilters.PublishAsync(message); + + Assert.NotNull(capturedEnvelope); + Assert.True(capturedEnvelope!.Headers.ContainsKey(HeaderKeys.MessageId)); + var messageId = capturedEnvelope.Headers[HeaderKeys.MessageId]?.ToString(); + Assert.NotNull(messageId); + Assert.NotEmpty(messageId!); + } + + [Fact] + public async Task PublishAsync_FilterPath_CallerCannotOverride_MessageId() + { + // Even on the filter path, the Bus must stamp MessageId last so a caller + // cannot spoof it via options.Headers. + var hostile = "00000000-0000-0000-0000-000000000000"; + string? seenMessageId = null; + + _mockFilterPipeline + .Setup(x => x.ExecuteOutgoingFiltersAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync((Envelope env, CancellationToken _) => + { + seenMessageId = env.Headers[HeaderKeys.MessageId]?.ToString(); + return FilterAction.Continue; + }); + + var pipelineConfigWithFilter = new Mock(); + pipelineConfigWithFilter.Setup(x => x.OutgoingFilters).Returns([typeof(object)]); + + var busWithFilters = new Bus( + _mockSerializer.Object, + _mockFilterPipeline.Object, + _mockSendPipeline.Object, + _mockRequestReplyManager.Object, + _mockLogger.Object, + _mockQueueConfig.Object, + _mockDispatcher.Object, + _handlerReferences, + pipelineConfigWithFilter.Object, + _scopeFactory, + _scopeAccessor); + + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + var options = new PublishOptions + { + Headers = new Dictionary { [HeaderKeys.MessageId] = hostile } + }; + + await busWithFilters.PublishAsync(message, options); + + Assert.NotNull(seenMessageId); + Assert.NotEqual(hostile, seenMessageId); + } + + // --- Reserved header spoof-proofing --- + + [Fact] + public async Task SendAsync_CallerCannotOverride_CorrelationIdOrMessageId() + { + // CorrelationId and MessageId are Bus-authoritative; caller-supplied values are + // silently replaced by Bus-generated ones so consumers cannot be spoofed. + var spoofedMessageId = Guid.NewGuid().ToString(); + var options = new SendOptions + { + Headers = new Dictionary + { + [HeaderKeys.CorrelationId] = "spoofed-correlation", + [HeaderKeys.MessageId] = spoofedMessageId, + } + }; + + IDictionary? captured = null; + _mockSendPipeline + .Setup(x => x.ExecuteSendMessagePipelineAsync( + It.IsAny(), It.IsAny())) + .Callback((ctx, _) => captured = ctx.Headers) + .Returns(Task.CompletedTask); + + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + await _bus.SendAsync(message, options, CancellationToken.None); + + Assert.NotNull(captured); + Assert.NotEqual("spoofed-correlation", captured![HeaderKeys.CorrelationId]); + Assert.NotEqual(spoofedMessageId, captured[HeaderKeys.MessageId]); + } + + [Fact] + public async Task SendAsync_CallerSuppliesMessageType_FlowsThroughToProducer() + { + // MessageType is not Bus-reserved; the caller-supplied value is forwarded so + // OutboundHeaderBuilder (the authoritative stamper) can overwrite it with the + // correct operation name on the wire. + var options = new SendOptions + { + Headers = new Dictionary + { + [HeaderKeys.MessageType] = "SomeoneElsesType", + } + }; + + IDictionary? captured = null; + _mockSendPipeline + .Setup(x => x.ExecuteSendMessagePipelineAsync( + It.IsAny(), It.IsAny())) + .Callback((ctx, _) => captured = ctx.Headers) + .Returns(Task.CompletedTask); + + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + await _bus.SendAsync(message, options, CancellationToken.None); + + Assert.NotNull(captured); + Assert.Equal("SomeoneElsesType", captured![HeaderKeys.MessageType]); + } + + [Fact] + public async Task SendAsync_CallerSuppliesReservedHeader_LogsWarning() + { + // Supplying a still-reserved key (CorrelationId) must trigger exactly one + // LogWarning that names the offending key, so operators can diagnose + // misconfigured callers without silently swallowing the bad input. + var options = new SendOptions + { + Headers = new Dictionary + { + [HeaderKeys.CorrelationId] = "spoofed-id", + } + }; + + _mockSendPipeline + .Setup(x => x.ExecuteSendMessagePipelineAsync( + It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + await _bus.SendAsync(message, options, CancellationToken.None); + + _mockLogger.Verify( + x => x.Log( + LogLevel.Warning, + It.IsAny(), + It.Is((v, _) => v.ToString()!.Contains(HeaderKeys.CorrelationId)), + null, + It.IsAny>()), + Times.Once); + } + + [Fact] + public async Task SendAsync_CallerSuppliesMessageType_NoWarningLogged() + { + // MessageType is not in the Bus's reserved set, so no warning is emitted when a + // caller supplies it in options.Headers. The producer is the authoritative stamper + // and will overwrite it with the operation name on the wire. + var options = new SendOptions + { + Headers = new Dictionary + { + [HeaderKeys.MessageType] = "SomeoneElsesType", + } + }; + + _mockSendPipeline + .Setup(x => x.ExecuteSendMessagePipelineAsync( + It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + await _bus.SendAsync(message, options, CancellationToken.None); + + _mockLogger.Verify( + x => x.Log( + LogLevel.Warning, + It.IsAny(), + It.Is((v, _) => v.ToString()!.Contains(HeaderKeys.MessageType)), + null, + It.IsAny>()), + Times.Never); + } + + // --- Semaphore dispose race --- + + // Pins the ThrowIfDisposed()-before-semaphore ordering on the lifecycle entry points. + [Fact] + public async Task StartConsumingAsync_AfterDispose_ThrowsObjectDisposedException() + { + // After DisposeAsync, all lifecycle calls must throw ObjectDisposedException + // (not NullReferenceException or succeed silently). + var mockConsumer = new Mock(); + var bus = CreateBusWithConsumer(mockConsumer.Object); + await bus.DisposeAsync(); + + await Assert.ThrowsAsync( + () => bus.StartConsumingAsync(CancellationToken.None)); + } + + // --- Cancellation during StopConsuming surfaces OCE; transport dispose is DI's job --- + + [Fact] + public async Task StopConsumingAsync_WhenCancellationRequested_DoesNotDisposeConsumer() + { + // The IConsumer is a DI singleton; the host's IServiceProvider disposes it on shutdown. + // A cancelled StopConsuming must surface the cancellation but must NOT touch the + // transport — there is no Bus-owned dispose path on the consumer any more. + var mockConsumer = new Mock(); + mockConsumer + .Setup(x => x.StartConsumingAsync(It.IsAny(), It.IsAny>(), It.IsAny())) + .Returns(Task.CompletedTask); + mockConsumer + .Setup(x => x.DisposeAsync()) + .Returns(ValueTask.CompletedTask); + + var bus = CreateBusWithConsumer(mockConsumer.Object); + await bus.StartConsumingAsync(CancellationToken.None); + + using var cts = new CancellationTokenSource(); + cts.Cancel(); // pre-cancel so WaitAsync sees cancellation immediately + + await Assert.ThrowsAnyAsync( + () => bus.StopConsumingAsync(cts.Token)); + + mockConsumer.Verify(x => x.DisposeAsync(), Times.Never); + + // Explicit dispose to clean up the bus's own owned resources (semaphore + send pipeline). + await bus.DisposeAsync(); + mockConsumer.Verify(x => x.DisposeAsync(), Times.Never); + } + + // --- StopConsuming before start must not poison _stopped --- + + [Fact] + public async Task StopConsumingAsync_BeforeStart_AllowsSubsequentStart() + { + // A defensive stop on an unstarted bus must leave it restartable. + var mockConsumer = new Mock(); + mockConsumer + .Setup(x => x.StartConsumingAsync(It.IsAny(), It.IsAny>(), It.IsAny())) + .Returns(Task.CompletedTask); + + await using var bus = CreateBusWithConsumer(mockConsumer.Object); + + // Defensive stop before any start + await bus.StopConsumingAsync(CancellationToken.None); + + // Must not throw "bus has been stopped" + await bus.StartConsumingAsync(CancellationToken.None); + await bus.StopConsumingAsync(CancellationToken.None); // cleanup + } + + [Fact] + public async Task StartConsumingAsync_AfterStop_ThrowsInvalidOperationException() + { + // The bus permanently latches _stopped after StopConsumingAsync. A second + // StartConsumingAsync call must throw — documented contract; container/ + // orchestrator reuse of the instance after stop must surface immediately. + var mockConsumer = new Mock(); + mockConsumer + .Setup(x => x.StartConsumingAsync(It.IsAny(), It.IsAny>(), It.IsAny())) + .Returns(Task.CompletedTask); + + await using var bus = CreateBusWithConsumer(mockConsumer.Object); + + await bus.StartConsumingAsync(CancellationToken.None); + await bus.StopConsumingAsync(CancellationToken.None); + + await Assert.ThrowsAsync(() => bus.StartConsumingAsync(CancellationToken.None)); + } + + // --- Helper --- + + private Bus CreateBusWithConsumer(IConsumer consumer) => + new( + _mockSerializer.Object, + _mockFilterPipeline.Object, + _mockSendPipeline.Object, + _mockRequestReplyManager.Object, + _mockLogger.Object, + _mockQueueConfig.Object, + _mockDispatcher.Object, + _handlerReferences, + _mockPipelineConfig.Object, + _scopeFactory, + _scopeAccessor, + consumer); + + // Lifecycle serialization tests. + + [Fact] + public async Task StartConsumingAsync_ConcurrentWithStop_SerializesState() + { + var consumerStarted = new TaskCompletionSource(); + var releaseStart = new TaskCompletionSource(); + var mockConsumer = new Mock(); + mockConsumer.Setup(c => c.StartConsumingAsync(It.IsAny(), It.IsAny>(), It.IsAny())) + .Returns(async () => + { + consumerStarted.SetResult(); + await releaseStart.Task; + }); + + await using var bus = CreateBusWithConsumer(mockConsumer.Object); + + var startTask = bus.StartConsumingAsync(); + await consumerStarted.Task; + var stopTask = bus.StopConsumingAsync(); + + // Stop must not complete before Start releases the semaphore + await Task.Delay(50); + Assert.False(stopTask.IsCompleted); + + releaseStart.SetResult(); + await startTask; + await stopTask; + + Assert.False(bus.IsConsuming); + } + + [Fact] + public async Task StartConsumingAsync_PreCancelledToken_ThrowsOCE() + { + var mockConsumer = new Mock(); + await using var bus = CreateBusWithConsumer(mockConsumer.Object); + using var cts = new CancellationTokenSource(); + cts.Cancel(); + await Assert.ThrowsAnyAsync( + () => bus.StartConsumingAsync(cts.Token)); + mockConsumer.Verify(c => c.StartConsumingAsync( + It.IsAny(), It.IsAny>(), It.IsAny()), + Times.Never); + } + + [Fact] + public async Task StopConsumingAsync_WhileStartInFlight_WaitsForStartToComplete() + { + var consumerStarted = new TaskCompletionSource(); + var releaseStart = new TaskCompletionSource(); + var startCompleted = new TaskCompletionSource(); + + var mockConsumer = new Mock(); + mockConsumer.Setup(c => c.StartConsumingAsync(It.IsAny(), It.IsAny>(), It.IsAny())) + .Returns(async () => + { + consumerStarted.SetResult(); + await releaseStart.Task; + }); + + await using var bus = CreateBusWithConsumer(mockConsumer.Object); + + var startTask = Task.Run(async () => + { + await bus.StartConsumingAsync(); + startCompleted.SetResult(); + }); + + await consumerStarted.Task; + + // Fire Stop while Start is blocked inside the consumer call + var stopTask = bus.StopConsumingAsync(); + + // Stop is behind Start on the semaphore -- it cannot complete first + var firstCompleted = await Task.WhenAny(stopTask, startCompleted.Task, Task.Delay(100)); + Assert.NotSame(stopTask, firstCompleted); + + // Release Start; both tasks complete cleanly + releaseStart.SetResult(); + await startTask; + await stopTask; + } + + private object CreateConsumeContextAccessorOrFail() + { + var accessorType = typeof(Bus).Assembly.GetType("ServiceConnect.Services.ConsumeContextAccessor"); + Assert.NotNull(accessorType); + + var accessor = Activator.CreateInstance(accessorType!); + Assert.NotNull(accessor); + return accessor!; + } + + private static IDisposable PushConsumeContextOrFail(object accessor, IReadOnlyDictionary headers) + { + var pushMethod = accessor.GetType() + .GetMethods(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic) + .SingleOrDefault(m => m.Name == "Push" && m.GetParameters().Length == 1); + + Assert.NotNull(pushMethod); + + var scope = pushMethod!.Invoke(accessor, [headers]); + Assert.IsAssignableFrom(scope); + return (IDisposable)scope!; + } + + private Bus CreateBusWithTimeoutStoreAndAccessorOrFail(ITimeoutStore timeoutStore, object accessor) + { + var constructor = typeof(Bus) + .GetConstructors(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic) + .SingleOrDefault(ctor => ctor.GetParameters().Any(p => p.Name == "consumeContextAccessor" && p.ParameterType.IsAssignableFrom(accessor.GetType()))); + + Assert.NotNull(constructor); + + var args = constructor!.GetParameters().Select(parameter => parameter.Name switch + { + "serializer" => _mockSerializer.Object, + "filterPipeline" => _mockFilterPipeline.Object, + "sendPipeline" => _mockSendPipeline.Object, + "requestReplyManager" => _mockRequestReplyManager.Object, + "logger" => _mockLogger.Object, + "queueConfig" => _mockQueueConfig.Object, + "dispatcher" => _mockDispatcher.Object, + "handlerReferences" => _handlerReferences, + "pipelineConfig" => _mockPipelineConfig.Object, + "scopeFactory" => _scopeFactory, + "scopeAccessor" => _scopeAccessor, + "consumer" => null, + "producer" => null, + "timeoutStore" => timeoutStore, + "consumeContextAccessor" => accessor, + "busConfig" => null, + "timeProvider" => null, + _ => throw new InvalidOperationException($"Unexpected Bus constructor parameter '{parameter.Name}'.") + }).ToArray(); + + return (Bus)constructor.Invoke(args); + } + + [Fact] + public async Task ConcurrentStartAndDispose_DoesNotThrowSemaphoreDisposedException() + { + int iterations = 100; + int unexpected = 0; + for (int i = 0; i < iterations; i++) + { + var mockConsumer = new Mock(); + mockConsumer.Setup(x => x.StartConsumingAsync(It.IsAny(), It.IsAny>(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var bus = new Bus( + _mockSerializer.Object, + _mockFilterPipeline.Object, + _mockSendPipeline.Object, + _mockRequestReplyManager.Object, + _mockLogger.Object, + _mockQueueConfig.Object, + _mockDispatcher.Object, + _handlerReferences, + _mockPipelineConfig.Object, + _scopeFactory, + _scopeAccessor, + mockConsumer.Object); + + using var barrier = new Barrier(2); + + var startTask = Task.Run(async () => + { + barrier.SignalAndWait(); + try { await bus.StartConsumingAsync(); } + catch (ObjectDisposedException ode) when (ode.ObjectName == typeof(Bus).FullName) { /* expected */ } + catch (ObjectDisposedException) { Interlocked.Increment(ref unexpected); } + catch (InvalidOperationException) { /* race-acceptable */ } + }); + var disposeTask = Task.Run(async () => + { + barrier.SignalAndWait(); + await bus.DisposeAsync(); + }); + + await Task.WhenAll(startTask, disposeTask).WaitAsync(TimeSpan.FromSeconds(10)); + } + + Assert.Equal(0, unexpected); + } +} + +file sealed class MarkerProbe +{ +} diff --git a/src/ServiceConnect.UnitTests/BusTests/BusCreateStreamValidationTests.cs b/src/ServiceConnect.UnitTests/BusTests/BusCreateStreamValidationTests.cs new file mode 100644 index 000000000..b41359e9b --- /dev/null +++ b/src/ServiceConnect.UnitTests/BusTests/BusCreateStreamValidationTests.cs @@ -0,0 +1,71 @@ +using System.Collections.Generic; +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging; +using Moq; +using ServiceConnect; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Services; +using ServiceConnect.UnitTests.Fakes.Messages; +using Xunit; + +namespace ServiceConnect.UnitTests.BusTests; + +public sealed class BusCreateStreamValidationTests +{ + // Constructs a Bus with a live producer mock so CreateStream reaches the validation + // and stream-creation logic rather than the "no producer" early exit. + private static Bus BuildBusWithProducer() + { + var mockSerializer = new Mock(); + var mockFilterPipeline = new Mock(); + var mockSendPipeline = new Mock(); + var mockRequestReplyManager = new Mock(); + var mockLogger = new Mock>(); + var mockQueueConfig = new Mock(); + mockQueueConfig.Setup(x => x.QueueName).Returns("test-queue"); + var mockPipelineConfig = new Mock(); + mockPipelineConfig.Setup(x => x.OutgoingFilters).Returns([]); + var mockDispatcher = new Mock(); + var mockProducer = new Mock(); + IReadOnlyList handlerReferences = []; + var scopeFactory = new ServiceCollection().BuildServiceProvider().GetRequiredService(); + var scopeAccessor = new ConsumeScopeAccessor(); + + return new Bus( + mockSerializer.Object, + mockFilterPipeline.Object, + mockSendPipeline.Object, + mockRequestReplyManager.Object, + mockLogger.Object, + mockQueueConfig.Object, + mockDispatcher.Object, + handlerReferences, + mockPipelineConfig.Object, + scopeFactory, + scopeAccessor, + producer: mockProducer.Object); + } + + [Theory] + [InlineData(null)] + [InlineData("")] + [InlineData(" ")] + public void CreateStream_NullOrWhitespaceEndpoint_ThrowsArgumentException(string? endpoint) + { + var bus = BuildBusWithProducer(); + // ArgumentException.ThrowIfNullOrWhiteSpace throws ArgumentNullException for null + // (a subclass of ArgumentException) and ArgumentException for empty/whitespace. + // IsAssignableFrom accepts both without requiring an exact type match. + var ex = Record.Exception(() => bus.CreateStream(endpoint!)); + Assert.IsAssignableFrom(ex); + } + + [Fact] + public void CreateStream_ValidEndpoint_DoesNotThrow() + { + var bus = BuildBusWithProducer(); + var stream = bus.CreateStream("valid.endpoint"); + Assert.NotNull(stream); + } +} diff --git a/src/ServiceConnect.UnitTests/BusTests/BusDisposeBoundedWaitTests.cs b/src/ServiceConnect.UnitTests/BusTests/BusDisposeBoundedWaitTests.cs new file mode 100644 index 000000000..888b598a7 --- /dev/null +++ b/src/ServiceConnect.UnitTests/BusTests/BusDisposeBoundedWaitTests.cs @@ -0,0 +1,139 @@ +using System; +using System.Collections.Generic; +using System.Diagnostics; +using System.Reflection; +using System.Threading; +using System.Threading.Tasks; +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging; +using Moq; +using ServiceConnect; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.BusTests; + +/// +/// Pins the bounded-semaphore-wait fix in : when the +/// lifecycle semaphore is held indefinitely (simulating a broker partition mid-handshake), +/// DisposeAsync must not block forever but must time out and proceed with teardown. +/// +public class BusDisposeBoundedWaitTests +{ + [Fact] + public async Task DisposeAsync_LifecycleSemaphoreHeldIndefinitely_TimesOutAndProceeds() + { + // Build a bus with a very short DisposeTimeout so the test completes quickly. + var busConfig = new Mock(); + busConfig.SetupGet(c => c.DisposeTimeout).Returns(TimeSpan.FromMilliseconds(200)); + + var bus = BuildBus(busConfig.Object); + + // Acquire the lifecycle semaphore from outside (via reflection) and never release. + // This simulates StartConsumingAsync wedged mid-handshake. + var semaphoreField = typeof(Bus).GetField("_lifecycleSemaphore", BindingFlags.Instance | BindingFlags.NonPublic); + var semaphore = (SemaphoreSlim)semaphoreField!.GetValue(bus)!; + await semaphore.WaitAsync(); + + try + { + var sw = Stopwatch.StartNew(); + await bus.DisposeAsync(); + sw.Stop(); + + // The dispose must have timed out the semaphore wait (~200ms) and proceeded; + // total elapsed should be close to 200ms, not indefinitely blocked. + Assert.InRange(sw.Elapsed.TotalMilliseconds, 150, 5000); + } + finally + { + // Release the semaphore so the test cleans up without hanging. + semaphore.Release(); + } + } + + [Fact] + public async Task DisposeAsync_SemaphoreUncontested_CompletesNormally() + { + // Happy path: semaphore is free, dispose should complete quickly. + var busConfig = new Mock(); + busConfig.SetupGet(c => c.DisposeTimeout).Returns(TimeSpan.FromSeconds(30)); + + var bus = BuildBus(busConfig.Object); + + var sw = Stopwatch.StartNew(); + await bus.DisposeAsync(); + sw.Stop(); + + // An uncontested dispose with no consuming should complete well under 500ms. + Assert.InRange(sw.Elapsed.TotalMilliseconds, 0, 2000); + } + + [Fact] + public async Task DisposeAsync_LogsWarningOnSemaphoreTimeout() + { + // Verify the warning log is emitted when the semaphore times out. + var loggerMock = new Mock>(); + var busConfig = new Mock(); + busConfig.SetupGet(c => c.DisposeTimeout).Returns(TimeSpan.FromMilliseconds(100)); + + var bus = BuildBus(busConfig.Object, loggerMock.Object); + + var semaphoreField = typeof(Bus).GetField("_lifecycleSemaphore", BindingFlags.Instance | BindingFlags.NonPublic); + var semaphore = (SemaphoreSlim)semaphoreField!.GetValue(bus)!; + await semaphore.WaitAsync(); + + try + { + await bus.DisposeAsync(); + + // A warning must have been logged for the timeout. + loggerMock.Verify( + l => l.Log( + LogLevel.Warning, + It.IsAny(), + It.IsAny(), + It.IsAny(), + It.IsAny>()), + Times.AtLeastOnce); + } + finally + { + semaphore.Release(); + } + } + + private static Bus BuildBus(IBusConfiguration busConfig, ILogger? logger = null) + { + var serializer = new Mock(); + var filterPipeline = new Mock(); + var sendPipeline = new Mock(); + sendPipeline.Setup(p => p.DisposeAsync()).Returns(ValueTask.CompletedTask); + var requestReplyManager = new Mock(); + var loggerObj = logger ?? new Mock>().Object; + var queueConfig = new Mock(); + queueConfig.SetupGet(q => q.QueueName).Returns("test-queue"); + var pipelineConfig = new Mock(); + pipelineConfig.SetupGet(p => p.OutgoingFilters).Returns([]); + var dispatcher = new Mock(); + var scopeFactory = new ServiceCollection().BuildServiceProvider().GetRequiredService(); + var scopeAccessor = new ConsumeScopeAccessor(); + + return new Bus( + serializer.Object, + filterPipeline.Object, + sendPipeline.Object, + requestReplyManager.Object, + loggerObj, + queueConfig.Object, + dispatcher.Object, + [], + pipelineConfig.Object, + scopeFactory, + scopeAccessor, + consumer: null, + busConfig: busConfig); + } +} diff --git a/src/ServiceConnect.UnitTests/BusTests/BusEnvelopeMessageTypeTests.cs b/src/ServiceConnect.UnitTests/BusTests/BusEnvelopeMessageTypeTests.cs new file mode 100644 index 000000000..498b56320 --- /dev/null +++ b/src/ServiceConnect.UnitTests/BusTests/BusEnvelopeMessageTypeTests.cs @@ -0,0 +1,148 @@ +using System; +using System.Collections.Generic; +using System.Threading; +using System.Threading.Tasks; +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging; +using Moq; +using ServiceConnect; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Services; +using ServiceConnect.UnitTests.Fakes; +using ServiceConnect.UnitTests.Fakes.Messages; +using Xunit; + +namespace ServiceConnect.UnitTests.BusTests; + +/// +/// Pins the contract that Bus does not stamp MessageType on the outgoing Envelope. +/// MessageType is the operation name ("Publish"|"Send"|"ByteStream") and is stamped +/// exclusively by OutboundHeaderBuilder. Type identity is carried by TypeName (FullName) +/// and FullTypeName (AQN). +/// +public sealed class BusEnvelopeMessageTypeTests +{ + // Shared mocks; each test creates its own busWithFilters so the filter-path + // (CreateEnvelope → ExecuteOutgoingFiltersAsync) is taken. + private readonly Mock _mockSerializer = new(); + private readonly Mock _mockFilterPipeline = new(); + private readonly Mock _mockSendPipeline = new(); + private readonly Mock _mockRequestReplyManager = new(); + private readonly Mock _mockConfig = new(); + private readonly Mock _mockQueueConfig = new(); + private readonly Mock> _mockLogger = new(); + private readonly IServiceScopeFactory _scopeFactory; + private readonly ConsumeScopeAccessor _scopeAccessor; + private readonly Mock _pipelineConfigWithFilter; + + public BusEnvelopeMessageTypeTests() + { + _mockQueueConfig.Setup(x => x.QueueName).Returns("test-queue"); + + // Default: filter pipeline returns Continue. + _mockFilterPipeline + .Setup(x => x.ExecuteOutgoingFiltersAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(FilterAction.Continue); + + _mockSerializer.SetupSerializeAny([1, 2, 3]); + + _scopeFactory = new ServiceCollection().BuildServiceProvider().GetRequiredService(); + _scopeAccessor = new ConsumeScopeAccessor(); + + // At least one registered filter forces the slow path (CreateEnvelope). + _pipelineConfigWithFilter = new Mock(); + _pipelineConfigWithFilter.Setup(x => x.OutgoingFilters).Returns([typeof(object)]); + } + + private Bus CreateBusWithFilters() + => new( + _mockSerializer.Object, + _mockFilterPipeline.Object, + _mockSendPipeline.Object, + _mockRequestReplyManager.Object, + _mockLogger.Object, + _mockQueueConfig.Object, + new Mock().Object, + [], + _pipelineConfigWithFilter.Object, + _scopeFactory, + _scopeAccessor); + + /// + /// The envelope handed to outgoing filters must NOT contain MessageType. Bus does + /// not stamp it; OutboundHeaderBuilder stamps the operation name on the wire. + /// + [Fact] + public async Task PublishAsync_EnvelopeDoesNotContainMessageTypeKey() + { + Envelope? captured = null; + _mockFilterPipeline + .Setup(x => x.ExecuteOutgoingFiltersAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync((Envelope env, CancellationToken _) => + { + captured = env; + return FilterAction.Continue; + }); + + var bus = CreateBusWithFilters(); + var message = new FakeMessage1(Guid.NewGuid()); + + await bus.PublishAsync(message); + + Assert.NotNull(captured); + Assert.False(captured!.Headers.ContainsKey(HeaderKeys.MessageType)); + } + + /// + /// Same guarantee holds on the SendAsync path: Bus does not stamp MessageType. + /// + [Fact] + public async Task SendAsync_EnvelopeDoesNotContainMessageTypeKey() + { + Envelope? captured = null; + _mockFilterPipeline + .Setup(x => x.ExecuteOutgoingFiltersAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync((Envelope env, CancellationToken _) => + { + captured = env; + return FilterAction.Continue; + }); + + var bus = CreateBusWithFilters(); + var message = new FakeMessage1(Guid.NewGuid()); + + await bus.SendAsync(message); + + Assert.NotNull(captured); + Assert.False(captured!.Headers.ContainsKey(HeaderKeys.MessageType)); + } + + /// + /// Belt-and-braces: removing MessageType from Bus stamps must not accidentally + /// drop the other Bus-authoritative headers that outgoing filters depend on. + /// + [Fact] + public async Task PublishAsync_EnvelopePreservesCorrelationIdAndMessageId_StillStampedByBus() + { + Envelope? captured = null; + _mockFilterPipeline + .Setup(x => x.ExecuteOutgoingFiltersAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync((Envelope env, CancellationToken _) => + { + captured = env; + return FilterAction.Continue; + }); + + var correlationId = Guid.NewGuid(); + var bus = CreateBusWithFilters(); + var message = new FakeMessage1(correlationId); + + await bus.PublishAsync(message); + + Assert.NotNull(captured); + Assert.True(captured!.Headers.ContainsKey(HeaderKeys.CorrelationId)); + Assert.True(captured.Headers.ContainsKey(HeaderKeys.MessageId)); + Assert.Equal(correlationId.ToString(), captured.Headers[HeaderKeys.CorrelationId]?.ToString()); + } +} diff --git a/src/ServiceConnect.UnitTests/BusTests/BusHostedServiceMissingProducerTests.cs b/src/ServiceConnect.UnitTests/BusTests/BusHostedServiceMissingProducerTests.cs new file mode 100644 index 000000000..ba49b2007 --- /dev/null +++ b/src/ServiceConnect.UnitTests/BusTests/BusHostedServiceMissingProducerTests.cs @@ -0,0 +1,81 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using ServiceConnect.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.BusTests; + +public sealed class BusHostedServiceMissingProducerTests +{ + [Fact] + public async Task StartAsync_NoProducer_DefaultAllowMissingProducer_Throws() + { + var bus = new Mock(MockBehavior.Strict); + bus.Setup(b => b.StartConsumingAsync(It.IsAny())) + .Returns(System.Threading.Tasks.Task.CompletedTask); + + var config = new BusConfiguration { AutoStartConsuming = false }; + var transport = new TransportConfiguration(); + + var hostedService = new BusHostedService( + bus.Object, + config, + transport, + NullLogger.Instance, + scanWarnings: null, + producer: null); + + var ex = await Assert.ThrowsAsync( + () => hostedService.StartAsync(System.Threading.CancellationToken.None)); + + Assert.Contains("IProducer", ex.Message, System.StringComparison.Ordinal); + Assert.Contains("AllowMissingProducer", ex.Message, System.StringComparison.Ordinal); + } + + [Fact] + public async Task StartAsync_NoProducer_AllowMissingProducerTrue_Succeeds() + { + var bus = new Mock(MockBehavior.Loose); + bus.Setup(b => b.StartConsumingAsync(It.IsAny())) + .Returns(System.Threading.Tasks.Task.CompletedTask); + + var config = new BusConfiguration { AutoStartConsuming = false, AllowMissingProducer = true }; + var transport = new TransportConfiguration(); + + var hostedService = new BusHostedService( + bus.Object, + config, + transport, + NullLogger.Instance, + scanWarnings: null, + producer: null); + + // Must not throw. + await hostedService.StartAsync(System.Threading.CancellationToken.None); + } + + [Fact] + public async Task StartAsync_ProducerPresent_DefaultFlags_Succeeds() + { + var bus = new Mock(MockBehavior.Loose); + bus.Setup(b => b.StartConsumingAsync(It.IsAny())) + .Returns(System.Threading.Tasks.Task.CompletedTask); + + var producer = new Mock().Object; + var config = new BusConfiguration { AutoStartConsuming = false }; + var transport = new TransportConfiguration(); + + var hostedService = new BusHostedService( + bus.Object, + config, + transport, + NullLogger.Instance, + scanWarnings: null, + producer: producer); + + await hostedService.StartAsync(System.Threading.CancellationToken.None); + } +} diff --git a/src/ServiceConnect.UnitTests/BusTests/BusIsConsumingDuringDisposeTests.cs b/src/ServiceConnect.UnitTests/BusTests/BusIsConsumingDuringDisposeTests.cs new file mode 100644 index 000000000..add153af7 --- /dev/null +++ b/src/ServiceConnect.UnitTests/BusTests/BusIsConsumingDuringDisposeTests.cs @@ -0,0 +1,86 @@ +using System.Reflection; +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging; +using Moq; +using ServiceConnect; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.BusTests; + +/// +/// Pins the invariant that returns false once +/// _disposed = 1 is set, even if _consuming is still true. +/// DisposeAsync sets _disposed BEFORE StopConsumingCoreAsync resets +/// _consuming; a health probe between those two writes must not report +/// Healthy on a bus already mid-teardown. +/// +public class BusIsConsumingDuringDisposeTests +{ + [Fact] + public void IsConsuming_AfterDisposedFlagSet_ReturnsFalseEvenIfConsumingFlagStillTrue() + { + // Reflectively set _consuming = true and _disposed = 1; verify IsConsuming is false. + var bus = BuildBus(); + var consumingField = typeof(Bus).GetField("_consuming", BindingFlags.Instance | BindingFlags.NonPublic); + var disposedField = typeof(Bus).GetField("_disposed", BindingFlags.Instance | BindingFlags.NonPublic); + + consumingField!.SetValue(bus, true); + disposedField!.SetValue(bus, 1); + + Assert.False(bus.IsConsuming); + } + + [Fact] + public void IsConsuming_NoDispose_ConsumingTrue_ReturnsTrue() + { + var bus = BuildBus(); + var consumingField = typeof(Bus).GetField("_consuming", BindingFlags.Instance | BindingFlags.NonPublic); + consumingField!.SetValue(bus, true); + + // _disposed is 0 (default) and no consumer registered, so IsCancelledByBroker + // evaluates as false via the null-coalescing path. + Assert.True(bus.IsConsuming); + } + + [Fact] + public void IsConsuming_DisposedZero_ConsumingFalse_ReturnsFalse() + { + // Baseline: freshly constructed Bus is not consuming. + var bus = BuildBus(); + Assert.False(bus.IsConsuming); + } + + private static Bus BuildBus() + { + var serializer = new Mock(); + var filterPipeline = new Mock(); + var sendPipeline = new Mock(); + sendPipeline.Setup(p => p.DisposeAsync()).Returns(ValueTask.CompletedTask); + var requestReplyManager = new Mock(); + var logger = new Mock>(); + var queueConfig = new Mock(); + queueConfig.SetupGet(q => q.QueueName).Returns("test-queue"); + var pipelineConfig = new Mock(); + pipelineConfig.SetupGet(p => p.OutgoingFilters).Returns([]); + var dispatcher = new Mock(); + var scopeFactory = new ServiceCollection().BuildServiceProvider().GetRequiredService(); + var scopeAccessor = new ConsumeScopeAccessor(); + + return new Bus( + serializer.Object, + filterPipeline.Object, + sendPipeline.Object, + requestReplyManager.Object, + logger.Object, + queueConfig.Object, + dispatcher.Object, + [], + pipelineConfig.Object, + scopeFactory, + scopeAccessor, + consumer: null); + } +} diff --git a/src/ServiceConnect.UnitTests/BusTests/BusIsConsumingTests.cs b/src/ServiceConnect.UnitTests/BusTests/BusIsConsumingTests.cs new file mode 100644 index 000000000..9077a22bd --- /dev/null +++ b/src/ServiceConnect.UnitTests/BusTests/BusIsConsumingTests.cs @@ -0,0 +1,130 @@ +using System.Reflection; +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging; +using Moq; +using ServiceConnect; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.BusTests; + +/// +/// Verifies the broker-cancel short-circuit on : +/// when the consumer's returns true +/// the bus reports IsConsuming = false even though _consuming is still set. +/// This is the load-bearing invariant BusConsumingHealthCheck relies on +/// to flip Unhealthy after a broker-initiated basic.cancel. +/// +public class BusIsConsumingTests +{ + [Fact] + public async Task IsConsuming_BrokerCancel_ReturnsFalse() + { + var consumer = new Mock(); + consumer.Setup(c => c.StartConsumingAsync( + It.IsAny(), It.IsAny>(), + It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + consumer.SetupGet(c => c.IsConnected).Returns(true); + consumer.SetupGet(c => c.IsCancelledByBroker).Returns(true); + + var bus = CreateBus(consumer.Object); + + await bus.StartConsumingAsync(); + + // _consuming is true (StartConsumingAsync completed), but IsCancelledByBroker + // overrides — the public IsConsuming must read false. + Assert.False(bus.IsConsuming); + } + + [Fact] + public async Task IsConsuming_NotCancelledByBroker_ReturnsTrueWhenConsuming() + { + var consumer = new Mock(); + consumer.Setup(c => c.StartConsumingAsync( + It.IsAny(), It.IsAny>(), + It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + consumer.SetupGet(c => c.IsConnected).Returns(true); + consumer.SetupGet(c => c.IsCancelledByBroker).Returns(false); + + var bus = CreateBus(consumer.Object); + + await bus.StartConsumingAsync(); + + Assert.True(bus.IsConsuming); + } + + [Fact] + public void IsConsuming_NoConsumerRegistered_ReturnsFalse() + { + // Defensive coverage of the `_consumer?.IsCancelledByBroker ?? false` null-coalesce path: + // a Bus with no consumer must not NRE when IsConsuming is read, even before any start. + var bus = CreateBus(consumer: null); + + Assert.False(bus.IsConsuming); + } + + [Fact] + public void IsConsuming_BrokerCancelFlipsAfterStart_ReturnsFalse() + { + // Race-free via reflection: simulates the operational sequence where the bus + // started consuming healthily, then later the broker cancels. The IsConsuming + // getter must observe the new state on the next read with no Stop in between. + var brokerCancel = false; + var consumer = new Mock(); + consumer.Setup(c => c.StartConsumingAsync( + It.IsAny(), It.IsAny>(), + It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + consumer.SetupGet(c => c.IsCancelledByBroker).Returns(() => brokerCancel); + + var bus = CreateBus(consumer.Object); + SetConsumingFlag(bus, true); + + Assert.True(bus.IsConsuming); + + brokerCancel = true; + Assert.False(bus.IsConsuming); + } + + private static Bus CreateBus(IConsumer? consumer) + { + var serializer = new Mock(); + var filterPipeline = new Mock(); + var sendPipeline = new Mock(); + var requestReplyManager = new Mock(); + var logger = new Mock>(); + var queueConfig = new Mock(); + queueConfig.SetupGet(q => q.QueueName).Returns("test-queue"); + var dispatcher = new Mock(); + var pipelineConfig = new Mock(); + pipelineConfig.SetupGet(p => p.OutgoingFilters).Returns([]); + var scopeFactory = new ServiceCollection().BuildServiceProvider().GetRequiredService(); + var scopeAccessor = new ConsumeScopeAccessor(); + + return new Bus( + serializer.Object, + filterPipeline.Object, + sendPipeline.Object, + requestReplyManager.Object, + logger.Object, + queueConfig.Object, + dispatcher.Object, + [], + pipelineConfig.Object, + scopeFactory, + scopeAccessor, + consumer); + } + + private static void SetConsumingFlag(Bus bus, bool value) + { + var field = typeof(Bus).GetField("_consuming", + BindingFlags.Instance | BindingFlags.NonPublic); + Assert.NotNull(field); + field!.SetValue(bus, value); + } +} diff --git a/src/ServiceConnect.UnitTests/BusTests/BusLifecycleCancellationTests.cs b/src/ServiceConnect.UnitTests/BusTests/BusLifecycleCancellationTests.cs new file mode 100644 index 000000000..f464560a0 --- /dev/null +++ b/src/ServiceConnect.UnitTests/BusTests/BusLifecycleCancellationTests.cs @@ -0,0 +1,99 @@ +using System.Collections.Generic; +using System.Reflection; +using System.Threading; +using System.Threading.Tasks; +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging; +using Moq; +using ServiceConnect; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.BusTests; + +// Invariant: StopConsumingCoreAsync rethrows OperationCanceledException without +// mutating _consuming/_stopped. All mutation sits behind _lifecycleSemaphore.WaitAsync, +// which propagates OCE before the body runs. +public sealed class BusLifecycleCancellationTests +{ + [Fact] + public async Task StopConsumingAsync_TokenCancelledBeforeSemaphoreAcquired_ThrowsOceWithoutMutatingState() + { + var bus = BuildBus(); + await bus.StartConsumingAsync(); + + // Hold _lifecycleSemaphore from outside so the next StopConsumingAsync blocks at WaitAsync. + var semField = typeof(Bus).GetField("_lifecycleSemaphore", + BindingFlags.Instance | BindingFlags.NonPublic); + var sem = (SemaphoreSlim)semField!.GetValue(bus)!; + await sem.WaitAsync(); + + try + { + using var cts = new CancellationTokenSource(); + cts.Cancel(); // cancel before the wait can complete + + // TaskCanceledException is a subclass of OperationCanceledException; ThrowsAnyAsync + // accepts the full hierarchy, which is the correct assertion here. + await Assert.ThrowsAnyAsync( + () => bus.StopConsumingAsync(cts.Token)); + + // _consuming must still be true — no mutation occurred under cancellation. + Assert.True(bus.IsConsuming); + } + finally + { + sem.Release(); + } + + // A subsequent uncontested StopConsumingAsync must succeed normally. + await bus.StopConsumingAsync(); + Assert.False(bus.IsConsuming); + } + + private static Bus BuildBus() + { + var consumer = new Mock(); + consumer.SetupGet(c => c.IsConnected).Returns(true); + consumer.SetupGet(c => c.IsCancelledByBroker).Returns(false); + consumer + .Setup(c => c.StartConsumingAsync( + It.IsAny(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .Returns(Task.CompletedTask); + + var serializer = new Mock(); + var filterPipeline = new Mock(); + var sendPipeline = new Mock(); + sendPipeline.Setup(p => p.DisposeAsync()).Returns(ValueTask.CompletedTask); + var requestReplyManager = new Mock(); + var logger = new Mock>(); + var queueConfig = new Mock(); + queueConfig.Setup(q => q.QueueName).Returns("test-queue"); + var pipelineConfig = new Mock(); + pipelineConfig.Setup(p => p.OutgoingFilters).Returns([]); + var dispatcher = new Mock(); + var handlerReferences = new List(); + var scopeFactory = new ServiceCollection().BuildServiceProvider().GetRequiredService(); + var scopeAccessor = new ConsumeScopeAccessor(); + + return new Bus( + serializer.Object, + filterPipeline.Object, + sendPipeline.Object, + requestReplyManager.Object, + logger.Object, + queueConfig.Object, + dispatcher.Object, + handlerReferences, + pipelineConfig.Object, + scopeFactory, + scopeAccessor, + consumer.Object, + producer: null); + } +} diff --git a/src/ServiceConnect.UnitTests/BusTests/BusOutboundPreparationTests.cs b/src/ServiceConnect.UnitTests/BusTests/BusOutboundPreparationTests.cs new file mode 100644 index 000000000..8cfa17b18 --- /dev/null +++ b/src/ServiceConnect.UnitTests/BusTests/BusOutboundPreparationTests.cs @@ -0,0 +1,299 @@ +using System; +using System.Collections.Generic; +using System.Threading; +using System.Threading.Tasks; +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Services; +using ServiceConnect.UnitTests.Fakes; +using ServiceConnect.UnitTests.Fakes.Messages; +using Xunit; + +namespace ServiceConnect.UnitTests.BusTests; + +public sealed class BusOutboundPreparationTests +{ + private static readonly byte[] SerializedBytes = [0xAB, 0xCD]; + + private static (Bus bus, Mock filterPipeline, Mock serializer) BuildBus(bool hasOutgoingFilters) + { + var mockSerializer = new Mock(); + mockSerializer.SetupSerializeAny(SerializedBytes); + + var mockFilterPipeline = new Mock(); + // Default: filters continue — individual tests override when needed. + mockFilterPipeline + .Setup(x => x.ExecuteOutgoingFiltersAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(FilterAction.Continue); + + var mockSendPipeline = new Mock(); + var mockRequestReplyManager = new Mock(); + var mockLogger = new Mock>(); + var mockQueueConfig = new Mock(); + mockQueueConfig.Setup(x => x.QueueName).Returns("test-queue"); + + var mockPipelineConfig = new Mock(); + // An empty list means no outgoing filters; a non-empty list activates the filter path. + mockPipelineConfig.Setup(x => x.OutgoingFilters) + .Returns(hasOutgoingFilters ? [typeof(object)] : []); + + var mockDispatcher = new Mock(); + IReadOnlyList handlerReferences = []; + var scopeFactory = new ServiceCollection().BuildServiceProvider().GetRequiredService(); + var scopeAccessor = new ConsumeScopeAccessor(); + + var bus = new Bus( + mockSerializer.Object, + mockFilterPipeline.Object, + mockSendPipeline.Object, + mockRequestReplyManager.Object, + mockLogger.Object, + mockQueueConfig.Object, + mockDispatcher.Object, + handlerReferences, + mockPipelineConfig.Object, + scopeFactory, + scopeAccessor); + + return (bus, mockFilterPipeline, mockSerializer); + } + + [Fact] + public async Task PrepareOutboundAsync_NoFilters_ReturnsBytesAndDirectHeaders_NotStopped() + { + var (bus, filterPipeline, _) = BuildBus(hasOutgoingFilters: false); + var message = new FakeMessage1(Guid.NewGuid()); + var correlationId = message.CorrelationId; + + var result = await bus.PrepareOutboundAsync(message, callerHeaders: null, CancellationToken.None); + + // Not stopped; the full byte content matches the stub. + Assert.False(result.Stopped); + Assert.Equal(SerializedBytes, result.Bytes.ToArray()); + + // Headers are stamped with the correlation ID (fast path, BuildHeadersDirect). + Assert.True(result.Headers.TryGetValue("CorrelationId", out var cid)); + Assert.Equal(correlationId.ToString(), cid); + + // Filter pipeline must never be called on the fast path. + filterPipeline.Verify( + x => x.ExecuteOutgoingFiltersAsync(It.IsAny(), It.IsAny()), + Times.Never); + } + + [Fact] + public async Task PrepareOutboundAsync_FiltersAccept_ReturnsHeadersFromEnvelope_NotStopped() + { + var (bus, filterPipeline, _) = BuildBus(hasOutgoingFilters: true); + var message = new FakeMessage1(Guid.NewGuid()); + var correlationId = message.CorrelationId; + + // Filter returns Continue — message is not stopped. + filterPipeline + .Setup(x => x.ExecuteOutgoingFiltersAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(FilterAction.Continue); + + var result = await bus.PrepareOutboundAsync(message, callerHeaders: null, CancellationToken.None); + + Assert.False(result.Stopped); + Assert.Equal(SerializedBytes, result.Bytes.ToArray()); + + // Headers are extracted from the envelope, so CorrelationId must be present. + Assert.True(result.Headers.ContainsKey("CorrelationId")); + Assert.Equal(correlationId.ToString(), result.Headers["CorrelationId"]); + + // Filter must have been invoked exactly once. + filterPipeline.Verify( + x => x.ExecuteOutgoingFiltersAsync(It.IsAny(), It.IsAny()), + Times.Once); + } + + [Fact] + public async Task PrepareOutboundAsync_FiltersStop_ReturnsStoppedTrue() + { + var (bus, filterPipeline, mockSerializer) = BuildBus(hasOutgoingFilters: true); + var message = new FakeMessage1(Guid.NewGuid()); + + filterPipeline + .Setup(x => x.ExecuteOutgoingFiltersAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(FilterAction.Stop); + + var result = await bus.PrepareOutboundAsync(message, callerHeaders: null, CancellationToken.None); + + // Callers must check Stopped before reading Bytes or Headers. + Assert.True(result.Stopped); + + // Serialisation must have run before the filter — the helper always serialises first. + mockSerializer.VerifySerialize(message, Times.Once()); + } + + [Fact] + public async Task PrepareOutboundAsync_CallerHeaders_FlowToEnvelopeOnFilterPath() + { + var (bus, filterPipeline, _) = BuildBus(hasOutgoingFilters: true); + var message = new FakeMessage1(Guid.NewGuid()); + var callerHeaders = new Dictionary { ["X-Trace-Id"] = "abc123" }; + + Envelope? capturedEnvelope = null; + filterPipeline + .Setup(x => x.ExecuteOutgoingFiltersAsync(It.IsAny(), It.IsAny())) + .Callback((env, _) => capturedEnvelope = env) + .ReturnsAsync(FilterAction.Continue); + + await bus.PrepareOutboundAsync(message, callerHeaders, CancellationToken.None); + + Assert.NotNull(capturedEnvelope); + Assert.True(capturedEnvelope.Headers.TryGetValue("X-Trace-Id", out var traceId)); + Assert.Equal("abc123", traceId?.ToString()); + } + + [Fact] + public async Task PrepareOutboundAsync_CallerHeaders_FlowToDirectHeadersOnNoFilterPath() + { + var (bus, _, _) = BuildBus(hasOutgoingFilters: false); + var message = new FakeMessage1(Guid.NewGuid()); + var callerHeaders = new Dictionary { ["X-Trace-Id"] = "trace-42" }; + + var result = await bus.PrepareOutboundAsync(message, callerHeaders, CancellationToken.None); + + Assert.False(result.Stopped); + Assert.True(result.Headers.TryGetValue("X-Trace-Id", out var v)); + Assert.Equal("trace-42", v); + } + + [Fact] + public async Task PrepareOutboundAsync_CancellationToken_FlowsThroughToFilter() + { + var (bus, filterPipeline, _) = BuildBus(hasOutgoingFilters: true); + var message = new FakeMessage1(Guid.NewGuid()); + using var cts = new CancellationTokenSource(); + var token = cts.Token; + + CancellationToken capturedToken = default; + filterPipeline + .Setup(x => x.ExecuteOutgoingFiltersAsync(It.IsAny(), It.IsAny())) + .Callback((_, ct) => capturedToken = ct) + .ReturnsAsync(FilterAction.Continue); + + await bus.PrepareOutboundAsync(message, callerHeaders: null, token); + + Assert.Equal(token, capturedToken); + } + + [Fact] + public async Task PrepareOutboundForRequestAsync_NoFilters_SkipsSerializeAndReturnsDirectHeaders() + { + var (bus, filterPipeline, mockSerializer) = BuildBus(hasOutgoingFilters: false); + var message = new FakeMessage1(Guid.NewGuid()); + var correlationId = message.CorrelationId; + + var result = await bus.PrepareOutboundForRequestAsync(message, callerHeaders: null, CancellationToken.None); + + Assert.False(result.Stopped); + Assert.NotNull(result.Headers); + Assert.True(result.Headers.TryGetValue("CorrelationId", out var cid)); + Assert.Equal(correlationId.ToString(), cid); + + // The request path skips the local serialise when no filters are registered + // because RequestReplyManager re-serialises downstream. + mockSerializer.VerifySerialize(message, Times.Never()); + filterPipeline.Verify( + x => x.ExecuteOutgoingFiltersAsync(It.IsAny(), It.IsAny()), + Times.Never); + } + + [Fact] + public async Task PrepareOutboundForRequestAsync_FiltersAccept_SerializesAndReturnsHeaders() + { + var (bus, filterPipeline, mockSerializer) = BuildBus(hasOutgoingFilters: true); + var message = new FakeMessage1(Guid.NewGuid()); + var correlationId = message.CorrelationId; + + filterPipeline + .Setup(x => x.ExecuteOutgoingFiltersAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(FilterAction.Continue); + + var result = await bus.PrepareOutboundForRequestAsync(message, callerHeaders: null, CancellationToken.None); + + Assert.False(result.Stopped); + Assert.NotNull(result.Headers); + Assert.True(result.Headers.TryGetValue("CorrelationId", out var cid)); + Assert.Equal(correlationId.ToString(), cid); + + // The filter path requires a local serialise so the envelope's wire body can be inspected. + mockSerializer.VerifySerialize(message, Times.Once()); + filterPipeline.Verify( + x => x.ExecuteOutgoingFiltersAsync(It.IsAny(), It.IsAny()), + Times.Once); + } + + [Fact] + public async Task PrepareOutboundForRequestAsync_FiltersStop_ReturnsStoppedTrue() + { + var (bus, filterPipeline, _) = BuildBus(hasOutgoingFilters: true); + var message = new FakeMessage1(Guid.NewGuid()); + + filterPipeline + .Setup(x => x.ExecuteOutgoingFiltersAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(FilterAction.Stop); + + var result = await bus.PrepareOutboundForRequestAsync(message, callerHeaders: null, CancellationToken.None); + + Assert.True(result.Stopped); + } + + [Fact] + public async Task PrepareOutboundForRequestAsync_CallerHeaders_FlowToEnvelopeOnFilterPath() + { + var (bus, filterPipeline, _) = BuildBus(hasOutgoingFilters: true); + Envelope? capturedEnvelope = null; + filterPipeline + .Setup(x => x.ExecuteOutgoingFiltersAsync(It.IsAny(), It.IsAny())) + .Callback((env, _) => capturedEnvelope = env) + .ReturnsAsync(FilterAction.Continue); + + var message = new FakeMessage1(Guid.NewGuid()); + var callerHeaders = new Dictionary { ["X-Trace-Id"] = "abc123" }; + + var result = await bus.PrepareOutboundForRequestAsync(message, callerHeaders, CancellationToken.None); + + Assert.False(result.Stopped); + Assert.NotNull(capturedEnvelope); + Assert.True(capturedEnvelope!.Headers.ContainsKey("X-Trace-Id")); + } + + [Fact] + public async Task PrepareOutboundForRequestAsync_CancellationToken_FlowsThroughToFilter() + { + var (bus, filterPipeline, _) = BuildBus(hasOutgoingFilters: true); + CancellationToken capturedToken = default; + filterPipeline + .Setup(x => x.ExecuteOutgoingFiltersAsync(It.IsAny(), It.IsAny())) + .Callback((_, ct) => capturedToken = ct) + .ReturnsAsync(FilterAction.Continue); + + var message = new FakeMessage1(Guid.NewGuid()); + using var cts = new CancellationTokenSource(); + + await bus.PrepareOutboundForRequestAsync(message, callerHeaders: null, cts.Token); + + Assert.Equal(cts.Token, capturedToken); + } + + [Fact] + public async Task PrepareOutboundForRequestAsync_CallerHeaders_FlowToDirectHeadersOnNoFilterPath() + { + var (bus, _, _) = BuildBus(hasOutgoingFilters: false); + var message = new FakeMessage1(Guid.NewGuid()); + var callerHeaders = new Dictionary { ["X-Trace-Id"] = "trace-42" }; + + var result = await bus.PrepareOutboundForRequestAsync(message, callerHeaders, CancellationToken.None); + + Assert.False(result.Stopped); + Assert.True(result.Headers.TryGetValue("X-Trace-Id", out var v)); + Assert.Equal("trace-42", v); + } +} diff --git a/src/ServiceConnect.UnitTests/BusTests/BusPublishAncestorFanoutTests.cs b/src/ServiceConnect.UnitTests/BusTests/BusPublishAncestorFanoutTests.cs new file mode 100644 index 000000000..b284d27ba --- /dev/null +++ b/src/ServiceConnect.UnitTests/BusTests/BusPublishAncestorFanoutTests.cs @@ -0,0 +1,125 @@ +using System; +using System.Collections.Generic; +using System.Linq; +using System.Threading; +using System.Threading.Tasks; +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging; +using Moq; +using ServiceConnect; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Services; +using ServiceConnect.UnitTests.Fakes; +using Xunit; + +namespace ServiceConnect.UnitTests.BusTests; + +/// +/// Verifies the polymorphic fan-out of : a derived message is +/// published to its own exchange AND to each ancestor type's exchange (walking BaseType up to, +/// but excluding, ), re-stamped with that ancestor's type per hop. This +/// matches master's recursive Publish<TBase> so a subscriber bound only to a +/// base-type exchange receives derived messages, and so the C#, master, and Node runtimes +/// interoperate for polymorphic subscribers on the same bus. +/// +public sealed class BusPublishAncestorFanoutTests +{ + // Hierarchy: FakeLeafEvent : FakeMiddleEvent : FakeAncestorEvent : Message. + public abstract class FakeAncestorEvent(Guid correlationId) : Message(correlationId); + public class FakeMiddleEvent(Guid correlationId) : FakeAncestorEvent(correlationId); + public sealed class FakeLeafEvent(Guid correlationId) : FakeMiddleEvent(correlationId); + + // Direct Message descendant — no polymorphic ancestors above Message. + public sealed class FakeFlatEvent(Guid correlationId) : Message(correlationId); + + private readonly Mock _mockSerializer = new(); + private readonly Mock _mockFilterPipeline = new(); + private readonly Mock _mockSendPipeline = new(); + private readonly Mock _mockRequestReplyManager = new(); + private readonly Mock _mockPipelineConfig = new(); + private readonly Mock> _mockLogger = new(); + private readonly Mock _mockQueueConfig = new(); + private readonly Mock _mockDispatcher = new(); + private readonly Bus _bus; + + public BusPublishAncestorFanoutTests() + { + // No outgoing filters — Bus takes the fast header-build path. + _mockPipelineConfig.Setup(x => x.OutgoingFilters).Returns([]); + _mockQueueConfig.Setup(x => x.QueueName).Returns("test-queue"); + _mockSerializer.SetupSerializeAny([1, 2, 3]); + _mockSerializer.SetupSerializeAny([4, 5, 6]); + + var scopeFactory = new ServiceCollection().BuildServiceProvider().GetRequiredService(); + + _bus = new Bus( + _mockSerializer.Object, + _mockFilterPipeline.Object, + _mockSendPipeline.Object, + _mockRequestReplyManager.Object, + _mockLogger.Object, + _mockQueueConfig.Object, + _mockDispatcher.Object, + [], + _mockPipelineConfig.Object, + scopeFactory, + new ConsumeScopeAccessor()); + } + + private List CapturePublishContexts() + { + var contexts = new List(); + _mockSendPipeline + .Setup(x => x.ExecutePublishMessagePipelineAsync(It.IsAny(), It.IsAny())) + .Callback((ctx, _) => contexts.Add(ctx)) + .Returns(Task.CompletedTask); + return contexts; + } + + [Fact] + public async Task PublishAsync_DerivedType_FansOutToEachAncestorExchange_ReStampingTypePerHop() + { + var contexts = CapturePublishContexts(); + + await _bus.PublishAsync(new FakeLeafEvent(Guid.NewGuid())); + + // One publish per type in the hierarchy up to (but excluding) Message. + Assert.Equal(3, contexts.Count); + Assert.Equal(typeof(FakeLeafEvent), contexts[0].MessageType); + Assert.Equal(typeof(FakeMiddleEvent), contexts[1].MessageType); + Assert.Equal(typeof(FakeAncestorEvent), contexts[2].MessageType); + + // Never publishes for the Message base type itself. + Assert.DoesNotContain(contexts, c => c.MessageType == typeof(Message)); + + // Every hop is a publish carrying the same body bytes. + Assert.All(contexts, c => Assert.Equal(SendOperation.Publish, c.Operation)); + Assert.All(contexts, c => Assert.True(c.MessageBytes.Span.SequenceEqual(new byte[] { 1, 2, 3 }))); + } + + [Fact] + public async Task PublishAsync_DerivedType_AllHopsShareOneMessageId() + { + var contexts = CapturePublishContexts(); + + await _bus.PublishAsync(new FakeLeafEvent(Guid.NewGuid())); + + // Master carries a single MessageId across the recursive ancestor publishes; the + // snapshot-and-clone of the prepared headers reproduces that here. + var messageIds = contexts.Select(c => c.Headers[HeaderKeys.MessageId]).Distinct().ToList(); + Assert.Single(messageIds); + } + + [Fact] + public async Task PublishAsync_DirectMessageDescendant_PublishesOnceOnly() + { + var contexts = CapturePublishContexts(); + + await _bus.PublishAsync(new FakeFlatEvent(Guid.NewGuid())); + + // BaseType is Message, so there are no ancestor exchanges to fan out to. + Assert.Single(contexts); + Assert.Equal(typeof(FakeFlatEvent), contexts[0].MessageType); + } +} diff --git a/src/ServiceConnect.UnitTests/BusTests/BusRouteValidationTests.cs b/src/ServiceConnect.UnitTests/BusTests/BusRouteValidationTests.cs new file mode 100644 index 000000000..342dd1b21 --- /dev/null +++ b/src/ServiceConnect.UnitTests/BusTests/BusRouteValidationTests.cs @@ -0,0 +1,96 @@ +using System; +using System.Collections.Generic; +using System.Threading; +using System.Threading.Tasks; +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging; +using Moq; +using ServiceConnect; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Services; +using ServiceConnect.UnitTests.Fakes; +using Xunit; + +namespace ServiceConnect.UnitTests.BusTests; + +public sealed class BusRouteValidationTests +{ + public static IEnumerable InvalidDestinations() => + [ + [(string[]?)null, "destinations"], + [Array.Empty(), "at least one destination"], + [new[] { "" }, "null or whitespace"], + [new[] { " " }, "null or whitespace"], + [new string?[] { "ok", null }, "null or whitespace"], + [new[] { "ok", "with,comma" }, "comma"], + ]; + + [Theory] + [MemberData(nameof(InvalidDestinations))] + public async Task RouteAsync_InvalidDestinations_ThrowsArgumentException( + string[]? destinations, string expectedMessageFragment) + { + var bus = BuildBus(); + // ArgumentNullException (thrown for null input by ThrowIfNull) is a subclass of + // ArgumentException; ThrowsAnyAsync accepts both without requiring an exact type match. + var ex = await Assert.ThrowsAnyAsync(() => + bus.RouteAsync(new TestMessage(), destinations!)); + Assert.Contains(expectedMessageFragment, ex.Message, StringComparison.OrdinalIgnoreCase); + } + + [Fact] + public async Task RouteAsync_ValidDestinations_Succeeds() + { + var bus = BuildBus(); + // No exception thrown → valid inputs accepted. + await bus.RouteAsync(new TestMessage(), ["q1", "q2", "q3"]); + } + + private static Bus BuildBus() + { + var serializer = new Mock(); + serializer.SetupSerializeAny([]); + + var filterPipeline = new Mock(); + + var sendPipeline = new Mock(); + sendPipeline + .Setup(p => p.ExecuteSendMessagePipelineAsync(It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + sendPipeline + .Setup(p => p.DisposeAsync()) + .Returns(ValueTask.CompletedTask); + + var requestReplyManager = new Mock(); + var logger = new Mock>(); + + var queueConfig = new Mock(); + queueConfig.Setup(q => q.QueueName).Returns("test-queue"); + + var pipelineConfig = new Mock(); + pipelineConfig.Setup(p => p.OutgoingFilters).Returns([]); + + var dispatcher = new Mock(); + IReadOnlyList handlerReferences = []; + var scopeFactory = new ServiceCollection().BuildServiceProvider().GetRequiredService(); + var scopeAccessor = new ConsumeScopeAccessor(); + + return new Bus( + serializer.Object, + filterPipeline.Object, + sendPipeline.Object, + requestReplyManager.Object, + logger.Object, + queueConfig.Object, + dispatcher.Object, + handlerReferences, + pipelineConfig.Object, + scopeFactory, + scopeAccessor, + consumer: null, + producer: null); + } + + private sealed class TestMessage() : Message(Guid.NewGuid()) { } +} diff --git a/src/ServiceConnect.UnitTests/BusTests/BusSendToManyAsyncFanoutTests.cs b/src/ServiceConnect.UnitTests/BusTests/BusSendToManyAsyncFanoutTests.cs new file mode 100644 index 000000000..82001f198 --- /dev/null +++ b/src/ServiceConnect.UnitTests/BusTests/BusSendToManyAsyncFanoutTests.cs @@ -0,0 +1,287 @@ +using System; +using System.Collections.Generic; +using System.Linq; +using System.Threading; +using System.Threading.Tasks; +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging; +using Moq; +using ServiceConnect; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Services; +using ServiceConnect.UnitTests.Fakes; +using ServiceConnect.UnitTests.Fakes.Messages; +using Xunit; + +namespace ServiceConnect.UnitTests.BusTests; + +/// +/// Tests for the fan-out partial-failure matrix of . +/// +/// Tests 2 and 3 verify the continue-on-failure contract introduced by Task B.3: +/// a failing endpoint must not abort delivery to the remaining endpoints, and all +/// failures must be collected and surfaced as a single . +/// +public sealed class BusSendToManyAsyncFanoutTests +{ + private readonly Mock _mockSerializer; + private readonly Mock _mockFilterPipeline; + private readonly Mock _mockSendPipeline; + private readonly Mock _mockRequestReplyManager; + private readonly Mock _mockConfig; + private readonly Mock _mockPipelineConfig; + private readonly Mock> _mockLogger; + private readonly Mock _mockQueueConfig; + private readonly Mock _mockDispatcher; + private readonly IReadOnlyList _handlerReferences; + private readonly IServiceScopeFactory _scopeFactory; + private readonly ConsumeScopeAccessor _scopeAccessor; + private readonly Bus _bus; + + public BusSendToManyAsyncFanoutTests() + { + _mockSerializer = new Mock(); + _mockFilterPipeline = new Mock(); + _mockSendPipeline = new Mock(); + _mockRequestReplyManager = new Mock(); + _mockConfig = new Mock(); + _mockPipelineConfig = new Mock(); + // No outgoing filters — Bus takes the fast header-build path. + _mockPipelineConfig.Setup(x => x.OutgoingFilters).Returns([]); + _mockLogger = new Mock>(); + _mockQueueConfig = new Mock(); + _mockQueueConfig.Setup(x => x.QueueName).Returns("test-queue"); + + _mockFilterPipeline + .Setup(x => x.ExecuteOutgoingFiltersAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(FilterAction.Continue); + _mockSerializer.SetupSerializeAny([1, 2, 3]); + + _mockDispatcher = new Mock(); + _handlerReferences = []; + _scopeFactory = new ServiceCollection().BuildServiceProvider().GetRequiredService(); + _scopeAccessor = new ConsumeScopeAccessor(); + + _bus = new Bus( + _mockSerializer.Object, + _mockFilterPipeline.Object, + _mockSendPipeline.Object, + _mockRequestReplyManager.Object, + _mockLogger.Object, + _mockQueueConfig.Object, + _mockDispatcher.Object, + _handlerReferences, + _mockPipelineConfig.Object, + _scopeFactory, + _scopeAccessor); + } + + // ------------------------------------------------------------------------- + // Test 1 — all endpoints succeed: baseline invocation count + // ------------------------------------------------------------------------- + + [Fact] + public async Task SendToManyAsync_AllSucceed_NoException() + { + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + int callCount = 0; + + _mockSendPipeline + .Setup(x => x.ExecuteSendMessagePipelineAsync(It.IsAny(), It.IsAny())) + .Callback((_, _) => callCount++) + .Returns(Task.CompletedTask); + + // No exception expected. + await _bus.SendToManyAsync(message, ["q1", "q2", "q3"]); + + Assert.Equal(3, callCount); + } + + // ------------------------------------------------------------------------- + // Test 2 — partial failure: AggregateException collected; others still attempted + // ------------------------------------------------------------------------- + + [Fact] + public async Task SendToManyAsync_PartialFailure_AggregatesAndAttemptsRemaining() + { + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + var capturedEndpoints = new List(); + + _mockSendPipeline + .Setup(x => x.ExecuteSendMessagePipelineAsync(It.IsAny(), It.IsAny())) + .Callback((ctx, _) => + { + capturedEndpoints.Add(ctx.EndPoint); + if (ctx.EndPoint == "q1") + { + throw new InvalidOperationException("q1 delivery failed"); + } + }) + .Returns(Task.CompletedTask); + + var ex = await Assert.ThrowsAsync( + () => _bus.SendToManyAsync(message, ["q1", "q2", "q3"])); + + // Exactly one failure collected. + Assert.Single(ex.InnerExceptions); + Assert.IsType(ex.InnerExceptions[0]); + Assert.Contains("q1", ex.InnerExceptions[0].Message); + + // All three endpoints must have been attempted. + Assert.Equal(3, capturedEndpoints.Count); + Assert.Contains("q1", capturedEndpoints); + Assert.Contains("q2", capturedEndpoints); + Assert.Contains("q3", capturedEndpoints); + } + + // ------------------------------------------------------------------------- + // Test 3 — all endpoints fail: AggregateException contains all three inners + // ------------------------------------------------------------------------- + + [Fact] + public async Task SendToManyAsync_AllFail_AggregateExceptionWithAllInners() + { + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + + _mockSendPipeline + .Setup(x => x.ExecuteSendMessagePipelineAsync(It.IsAny(), It.IsAny())) + .Callback((ctx, _) => + throw new InvalidOperationException($"endpoint {ctx.EndPoint} delivery failed")) + .Returns(Task.CompletedTask); + + var ex = await Assert.ThrowsAsync( + () => _bus.SendToManyAsync(message, ["q1", "q2", "q3"])); + + Assert.Equal(3, ex.InnerExceptions.Count); + Assert.All(ex.InnerExceptions, e => Assert.IsType(e)); + + // Each endpoint name appears in exactly one inner exception message. + var messages = ex.InnerExceptions.Select(e => e.Message).ToList(); + Assert.Contains(messages, m => m.Contains("q1")); + Assert.Contains(messages, m => m.Contains("q2")); + Assert.Contains(messages, m => m.Contains("q3")); + } + + // ------------------------------------------------------------------------- + // Test 4 — cancellation mid-loop: OperationCanceledException propagates directly + // ------------------------------------------------------------------------- + + [Fact] + public async Task SendToManyAsync_CancellationMidLoop_ThrowsOperationCanceledDirectly() + { + using var cts = new CancellationTokenSource(); + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + var capturedEndpoints = new List(); + + _mockSendPipeline + .Setup(x => x.ExecuteSendMessagePipelineAsync(It.IsAny(), It.IsAny())) + .Callback((ctx, _) => + { + capturedEndpoints.Add(ctx.EndPoint); + if (ctx.EndPoint == "q1") + { + cts.Cancel(); + cts.Token.ThrowIfCancellationRequested(); + } + }) + .Returns(Task.CompletedTask); + + // OperationCanceledException must propagate directly — not wrapped in AggregateException. + await Assert.ThrowsAsync( + () => _bus.SendToManyAsync(message, ["q1", "q2", "q3"], cancellationToken: cts.Token)); + + // Loop must have aborted: q2 and q3 must never have been attempted. + Assert.DoesNotContain("q2", capturedEndpoints); + Assert.DoesNotContain("q3", capturedEndpoints); + } + + // ------------------------------------------------------------------------- + // Test 4b — prior failure followed by cancellation: the OCE is wrapped in an + // AggregateException together with the prior endpoint failures so the + // caller can inspect both. (Cancellation on the first iteration with + // no prior failures still throws the raw OCE — see test 4.) + // ------------------------------------------------------------------------- + + [Fact] + public async Task SendToManyAsync_PriorFailureThenCancellation_ThrowsAggregateContainingBoth() + { + using var cts = new CancellationTokenSource(); + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + + _mockSendPipeline + .Setup(x => x.ExecuteSendMessagePipelineAsync(It.IsAny(), It.IsAny())) + .Callback((ctx, _) => + { + if (ctx.EndPoint == "q1") + { + throw new InvalidOperationException("q1 delivery failed"); + } + if (ctx.EndPoint == "q2") + { + cts.Cancel(); + cts.Token.ThrowIfCancellationRequested(); + } + }) + .Returns(Task.CompletedTask); + + var ex = await Assert.ThrowsAsync( + () => _bus.SendToManyAsync(message, ["q1", "q2", "q3"], cancellationToken: cts.Token)); + + Assert.Equal(2, ex.InnerExceptions.Count); + // OCE is first so callers that walk InnerExceptions can detect cancellation. + Assert.IsAssignableFrom(ex.InnerExceptions[0]); + Assert.IsType(ex.InnerExceptions[1]); + Assert.Equal("q1 delivery failed", ex.InnerExceptions[1].Message); + } + + // ------------------------------------------------------------------------- + // Test 5 — header-copy isolation: per-iteration shallow copy prevents + // one endpoint's middleware mutations from leaking into the next + // ------------------------------------------------------------------------- + + [Fact] + public async Task SendToManyAsync_PartialFailure_HeaderCopyIsolatedPerIteration() + { + // The pipeline callback simulates what ISendMessageMiddleware would do: it stamps + // a per-endpoint key into ctx.Headers before (optionally) failing. Because Bus + // creates a fresh shallow copy of the base headers dict on every iteration, the + // stamp written during q1's (failing) iteration must not appear in q2's ctx.Headers. + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Tim" }; + IDictionary? q2Headers = null; + + _mockSendPipeline + .Setup(x => x.ExecuteSendMessagePipelineAsync(It.IsAny(), It.IsAny())) + .Callback((ctx, _) => + { + // Mutate the context's headers dict (simulating middleware behaviour). + ctx.Headers["X-Endpoint-Visit"] = ctx.EndPoint ?? ""; + + if (ctx.EndPoint == "q1") + { + throw new InvalidOperationException("q1 delivery failed"); + } + + if (ctx.EndPoint == "q2") + { + // Capture a snapshot of q2's headers after mutation. + q2Headers = new Dictionary(ctx.Headers, StringComparer.Ordinal); + } + }) + .Returns(Task.CompletedTask); + + var ex = await Assert.ThrowsAsync( + () => _bus.SendToManyAsync(message, ["q1", "q2", "q3"])); + + Assert.Single(ex.InnerExceptions); + + // q2's headers dict must exist and must record "q2" as the visit stamp — not "q1". + Assert.NotNull(q2Headers); + Assert.True(q2Headers!.TryGetValue("X-Endpoint-Visit", out var visitStamp)); + Assert.Equal("q2", visitStamp); + + // The base headers dict must not carry q1's mutation (the per-iteration copy isolates it). + // If Bus had passed the same dict to every iteration, "X-Endpoint-Visit" would be "q1" + // when q2 runs (since q1 mutated it first). A value of "q2" proves the copy was made. + } +} diff --git a/src/ServiceConnect.UnitTests/BusTests/BusStartConsumingFlagOrderTests.cs b/src/ServiceConnect.UnitTests/BusTests/BusStartConsumingFlagOrderTests.cs new file mode 100644 index 000000000..8a22bfefb --- /dev/null +++ b/src/ServiceConnect.UnitTests/BusTests/BusStartConsumingFlagOrderTests.cs @@ -0,0 +1,138 @@ +using System.Collections.Generic; +using System.Threading; +using System.Threading.Tasks; +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging; +using Moq; +using ServiceConnect; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.BusTests; + +/// +/// Pins the ordering contract for : _consuming +/// must be set to true BEFORE the broker's StartConsumingAsync await completes, +/// so that health probes during the startup window report Healthy. Setting the flag +/// only after the await would yield a spurious Unhealthy window. +/// +public class BusStartConsumingFlagOrderTests +{ + [Fact] + public async Task StartConsumingAsync_DuringConsumerStart_IsConsumingReportsTrue() + { + // Drive a consumer whose StartConsumingAsync awaits until signalled. Verify that + // while it's mid-await, bus.IsConsuming already returns true. + var consumerStartedTcs = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var consumerCanFinishTcs = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + + var consumer = new Mock(); + consumer.SetupGet(c => c.IsConnected).Returns(true); + consumer.SetupGet(c => c.IsCancelledByBroker).Returns(false); + consumer + .Setup(c => c.StartConsumingAsync( + It.IsAny(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .Returns(async () => + { + consumerStartedTcs.TrySetResult(); + await consumerCanFinishTcs.Task.ConfigureAwait(false); + }); + + var bus = BuildBus(consumer.Object); + + // Start consuming on a background task so the test can observe IsConsuming + // while the consumer is still mid-await. + var startTask = Task.Run(() => bus.StartConsumingAsync()); + await consumerStartedTcs.Task; // we are now mid-await inside the consumer + + // Pre-fix: IsConsuming returned false here (flag was set AFTER the await). + // Post-fix: returns true (flag is set BEFORE the await). + Assert.True(bus.IsConsuming); + + consumerCanFinishTcs.TrySetResult(); + await startTask; + + Assert.True(bus.IsConsuming); + } + + [Fact] + public async Task StartConsumingAsync_ConsumerStartFails_RollsBackIsConsumingFalse() + { + // Verify the catch block rolls _consuming back to false when the consumer's + // StartConsumingAsync throws, so a failed start does not leave the bus + // claiming to consume. + var consumer = new Mock(); + consumer.SetupGet(c => c.IsConnected).Returns(true); + consumer.SetupGet(c => c.IsCancelledByBroker).Returns(false); + consumer + .Setup(c => c.StartConsumingAsync( + It.IsAny(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .ThrowsAsync(new InvalidOperationException("broker unreachable")); + + var bus = BuildBus(consumer.Object); + + await Assert.ThrowsAsync(() => bus.StartConsumingAsync()); + Assert.False(bus.IsConsuming); + } + + [Fact] + public async Task StartConsumingAsync_ConsumerStartSucceeds_IsConsumingTrue() + { + // Happy-path sanity: after a successful StartConsumingAsync, IsConsuming is true. + var consumer = new Mock(); + consumer.SetupGet(c => c.IsConnected).Returns(true); + consumer.SetupGet(c => c.IsCancelledByBroker).Returns(false); + consumer + .Setup(c => c.StartConsumingAsync( + It.IsAny(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .Returns(Task.CompletedTask); + + var bus = BuildBus(consumer.Object); + + await bus.StartConsumingAsync(); + + Assert.True(bus.IsConsuming); + } + + private static Bus BuildBus(IConsumer consumer) + { + var serializer = new Mock(); + var filterPipeline = new Mock(); + var sendPipeline = new Mock(); + sendPipeline.Setup(p => p.DisposeAsync()).Returns(ValueTask.CompletedTask); + var requestReplyManager = new Mock(); + var logger = new Mock>(); + var queueConfig = new Mock(); + queueConfig.SetupGet(q => q.QueueName).Returns("test-queue"); + var pipelineConfig = new Mock(); + pipelineConfig.SetupGet(p => p.OutgoingFilters).Returns([]); + var dispatcher = new Mock(); + var scopeFactory = new ServiceCollection().BuildServiceProvider().GetRequiredService(); + var scopeAccessor = new ConsumeScopeAccessor(); + + return new Bus( + serializer.Object, + filterPipeline.Object, + sendPipeline.Object, + requestReplyManager.Object, + logger.Object, + queueConfig.Object, + dispatcher.Object, + [], + pipelineConfig.Object, + scopeFactory, + scopeAccessor, + consumer); + } +} diff --git a/src/ServiceConnect.UnitTests/BusTests/BusStopConsumingIdempotenceTests.cs b/src/ServiceConnect.UnitTests/BusTests/BusStopConsumingIdempotenceTests.cs new file mode 100644 index 000000000..154de48d5 --- /dev/null +++ b/src/ServiceConnect.UnitTests/BusTests/BusStopConsumingIdempotenceTests.cs @@ -0,0 +1,97 @@ +using System.Collections.Generic; +using System.Threading.Tasks; +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging; +using Moq; +using ServiceConnect; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.BusTests; + +/// +/// Pins the idempotent contract of : calling it +/// after the bus has been disposed must not throw. A disposed bus is also a stopped +/// bus (DisposeAsync calls StopConsumingCoreAsync), so returning early on disposed +/// is semantically correct and avoids the noisy ObjectDisposedException that the host's +/// defensive StopAsync used to surface on every shutdown. +/// +public class BusStopConsumingIdempotenceTests +{ + [Fact] + public async Task StopConsumingAsync_AfterDispose_DoesNotThrow() + { + var bus = BuildBus(); + await bus.DisposeAsync(); + + // No throw — idempotent early-return on disposed. + await bus.StopConsumingAsync(); + } + + [Fact] + public async Task StopConsumingAsync_AfterDispose_CalledTwice_DoesNotThrow() + { + var bus = BuildBus(); + await bus.DisposeAsync(); + + // Both calls must be safe. + await bus.StopConsumingAsync(); + await bus.StopConsumingAsync(); + } + + [Fact] + public async Task StopConsumingAsync_AfterDispose_DoesNotLogWarningOrError() + { + var loggerMock = new Mock>(); + var bus = BuildBus(loggerMock.Object); + await bus.DisposeAsync(); + + // Clear any dispose-path log calls so we only inspect the StopConsumingAsync call. + loggerMock.Invocations.Clear(); + + await bus.StopConsumingAsync(); + + // The early-return path emits no log entries at all — certainly no warning/error. + loggerMock.Verify( + l => l.Log( + It.Is(ll => ll >= LogLevel.Warning), + It.IsAny(), + It.IsAny(), + It.IsAny(), + It.IsAny>()), + Times.Never); + } + + private static Bus BuildBus(ILogger? logger = null) + { + var serializer = new Mock(); + var filterPipeline = new Mock(); + var sendPipeline = new Mock(); + sendPipeline.Setup(p => p.DisposeAsync()).Returns(ValueTask.CompletedTask); + var requestReplyManager = new Mock(); + var loggerObj = logger ?? new Mock>().Object; + var queueConfig = new Mock(); + queueConfig.SetupGet(q => q.QueueName).Returns("test-queue"); + var pipelineConfig = new Mock(); + pipelineConfig.SetupGet(p => p.OutgoingFilters).Returns([]); + var dispatcher = new Mock(); + var scopeFactory = new ServiceCollection().BuildServiceProvider().GetRequiredService(); + var scopeAccessor = new ConsumeScopeAccessor(); + + return new Bus( + serializer.Object, + filterPipeline.Object, + sendPipeline.Object, + requestReplyManager.Object, + loggerObj, + queueConfig.Object, + dispatcher.Object, + [], + pipelineConfig.Object, + scopeFactory, + scopeAccessor, + consumer: null); + } +} diff --git a/src/ServiceConnect.UnitTests/BusTests/BusStopConsumingTransportHookTests.cs b/src/ServiceConnect.UnitTests/BusTests/BusStopConsumingTransportHookTests.cs new file mode 100644 index 000000000..1a9d9c6be --- /dev/null +++ b/src/ServiceConnect.UnitTests/BusTests/BusStopConsumingTransportHookTests.cs @@ -0,0 +1,144 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging; +using Moq; +using ServiceConnect; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.BusTests; + +/// +/// Verifies that drives the transport-level graceful +/// stop via . Without that call the broker +/// keeps delivering until DI disposes the consumer (which can be arbitrarily later than +/// BusHostedService.StopAsync returns), and the dispatch pipeline keeps running +/// in the gap. +/// +public class BusStopConsumingTransportHookTests +{ + [Fact] + public async Task StopConsumingAsync_AfterStart_InvokesConsumerStopConsumingAsync() + { + var consumer = new Mock(); + consumer.Setup(c => c.StartConsumingAsync( + It.IsAny(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .Returns(Task.CompletedTask); + consumer.Setup(c => c.StopConsumingAsync(It.IsAny())) + .Returns(Task.CompletedTask); + + var bus = BuildBus(consumer.Object); + + await bus.StartConsumingAsync(); + await bus.StopConsumingAsync(); + + consumer.Verify(c => c.StopConsumingAsync(It.IsAny()), Times.Once); + } + + [Fact] + public async Task StopConsumingAsync_NotConsuming_DoesNotInvokeConsumerStop() + { + var consumer = new Mock(); + var bus = BuildBus(consumer.Object); + + // Bus has not started consuming. Stop is a no-op; the transport hook should not + // fire (no consumer to stop). + await bus.StopConsumingAsync(); + + consumer.Verify(c => c.StopConsumingAsync(It.IsAny()), Times.Never); + } + + [Fact] + public async Task StopConsumingAsync_ConsumerStopThrows_LogsWarningAndDoesNotPropagate() + { + var consumer = new Mock(); + consumer.Setup(c => c.StartConsumingAsync( + It.IsAny(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .Returns(Task.CompletedTask); + consumer.Setup(c => c.StopConsumingAsync(It.IsAny())) + .ThrowsAsync(new InvalidOperationException("transport down")); + + var loggerMock = new Mock>(); + var bus = BuildBus(consumer.Object, loggerMock.Object); + + await bus.StartConsumingAsync(); + + // Swallowed: a transport-side stop failure must not prevent the bus from + // recording its stopped state. + await bus.StopConsumingAsync(); + + loggerMock.Verify( + l => l.Log( + LogLevel.Warning, + It.IsAny(), + It.Is((v, _) => v.ToString()!.Contains("StopConsumingAsync")), + It.IsAny(), + It.IsAny>()), + Times.AtLeastOnce); + } + + [Fact] + public async Task StopConsumingAsync_PropagatesCallerCancellation() + { + // The caller's cancellation token must reach IConsumer.StopConsumingAsync so a + // wedged transport-level drain can be aborted by host-shutdown timeout. + var consumer = new Mock(); + consumer.Setup(c => c.StartConsumingAsync( + It.IsAny(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .Returns(Task.CompletedTask); + + CancellationToken observedToken = default; + consumer.Setup(c => c.StopConsumingAsync(It.IsAny())) + .Callback(ct => observedToken = ct) + .Returns(Task.CompletedTask); + + var bus = BuildBus(consumer.Object); + await bus.StartConsumingAsync(); + + using var cts = new CancellationTokenSource(); + await bus.StopConsumingAsync(cts.Token); + + Assert.Equal(cts.Token, observedToken); + } + + private static Bus BuildBus(IConsumer? consumer = null, ILogger? logger = null) + { + var serializer = new Mock(); + var filterPipeline = new Mock(); + var sendPipeline = new Mock(); + sendPipeline.Setup(p => p.DisposeAsync()).Returns(ValueTask.CompletedTask); + var requestReplyManager = new Mock(); + var loggerObj = logger ?? new Mock>().Object; + var queueConfig = new Mock(); + queueConfig.SetupGet(q => q.QueueName).Returns("test-queue"); + var pipelineConfig = new Mock(); + pipelineConfig.SetupGet(p => p.OutgoingFilters).Returns([]); + var dispatcher = new Mock(); + var scopeFactory = new ServiceCollection().BuildServiceProvider().GetRequiredService(); + var scopeAccessor = new ConsumeScopeAccessor(); + + return new Bus( + serializer.Object, + filterPipeline.Object, + sendPipeline.Object, + requestReplyManager.Object, + loggerObj, + queueConfig.Object, + dispatcher.Object, + [], + pipelineConfig.Object, + scopeFactory, + scopeAccessor, + consumer: consumer); + } +} diff --git a/src/ServiceConnect.UnitTests/BusTests/BusTransportLifecycleTests.cs b/src/ServiceConnect.UnitTests/BusTests/BusTransportLifecycleTests.cs new file mode 100644 index 000000000..5b299e856 --- /dev/null +++ b/src/ServiceConnect.UnitTests/BusTests/BusTransportLifecycleTests.cs @@ -0,0 +1,111 @@ +using System.Collections.Generic; +using System.Threading; +using System.Threading.Tasks; +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging; +using Moq; +using ServiceConnect; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.BusTests; + +// IConsumer and IProducer are registered as DI singletons; their lifecycle is owned by the +// host's IServiceProvider, which disposes them on host shutdown. The Bus must NOT dispose +// either transport — doing so would double-dispose against DI's own teardown. These tests +// pin the new contract: Bus.StopConsumingAsync and Bus.DisposeAsync leave the transports +// alone. +public sealed class BusTransportLifecycleTests +{ + [Fact] + public async Task DisposeAsync_DoesNotDisposeIConsumer() + { + var consumer = new Mock(); + consumer.SetupGet(c => c.IsConnected).Returns(true); + consumer.SetupGet(c => c.IsCancelledByBroker).Returns(false); + consumer + .Setup(c => c.StartConsumingAsync(It.IsAny(), It.IsAny>(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + int disposeCount = 0; + consumer.Setup(c => c.DisposeAsync()) + .Callback(() => Interlocked.Increment(ref disposeCount)) + .Returns(ValueTask.CompletedTask); + + var bus = BuildBus(consumer.Object, producer: null); + await bus.StartConsumingAsync(); + await bus.DisposeAsync(); + + Assert.Equal(0, disposeCount); + } + + [Fact] + public async Task DisposeAsync_DoesNotDisposeIProducer() + { + var producer = new Mock(); + int disposeCount = 0; + producer.Setup(p => p.DisposeAsync()) + .Callback(() => Interlocked.Increment(ref disposeCount)) + .Returns(ValueTask.CompletedTask); + + var bus = BuildBus(consumer: null, producer.Object); + await bus.DisposeAsync(); + + Assert.Equal(0, disposeCount); + } + + [Fact] + public async Task StopConsumingAsync_DoesNotDisposeIConsumer() + { + var consumer = new Mock(); + consumer.SetupGet(c => c.IsConnected).Returns(true); + consumer.SetupGet(c => c.IsCancelledByBroker).Returns(false); + consumer + .Setup(c => c.StartConsumingAsync(It.IsAny(), It.IsAny>(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + int disposeCount = 0; + consumer.Setup(c => c.DisposeAsync()) + .Callback(() => Interlocked.Increment(ref disposeCount)) + .Returns(ValueTask.CompletedTask); + + var bus = BuildBus(consumer.Object, producer: null); + await bus.StartConsumingAsync(); + await bus.StopConsumingAsync(); + + Assert.Equal(0, disposeCount); + } + + private static Bus BuildBus(IConsumer? consumer, IProducer? producer) + { + var serializer = new Mock(); + var filterPipeline = new Mock(); + var sendPipeline = new Mock(); + sendPipeline.Setup(p => p.DisposeAsync()).Returns(ValueTask.CompletedTask); + var requestReplyManager = new Mock(); + var logger = new Mock>(); + var queueConfig = new Mock(); + queueConfig.Setup(q => q.QueueName).Returns("test-queue"); + var pipelineConfig = new Mock(); + pipelineConfig.Setup(p => p.OutgoingFilters).Returns([]); + var dispatcher = new Mock(); + var handlerReferences = new List(); + var scopeFactory = new ServiceCollection().BuildServiceProvider().GetRequiredService(); + var scopeAccessor = new ConsumeScopeAccessor(); + + return new Bus( + serializer.Object, + filterPipeline.Object, + sendPipeline.Object, + requestReplyManager.Object, + logger.Object, + queueConfig.Object, + dispatcher.Object, + handlerReferences, + pipelineConfig.Object, + scopeFactory, + scopeAccessor, + consumer, + producer); + } +} diff --git a/src/ServiceConnect.UnitTests/BusTests/RequestTimeoutAsyncDimTests.cs b/src/ServiceConnect.UnitTests/BusTests/RequestTimeoutAsyncDimTests.cs new file mode 100644 index 000000000..58ca1c66d --- /dev/null +++ b/src/ServiceConnect.UnitTests/BusTests/RequestTimeoutAsyncDimTests.cs @@ -0,0 +1,42 @@ +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; +using Xunit; + +namespace ServiceConnect.UnitTests.BusTests; + +public class RequestTimeoutAsyncDimTests +{ + private sealed class StubBus : IBus + { + public Task PublishAsync(T message, PublishOptions? options = null, CancellationToken cancellationToken = default) where T : Message => Task.CompletedTask; + public Task SendAsync(T message, SendOptions? options = null, CancellationToken cancellationToken = default) where T : Message => Task.CompletedTask; + public Task SendToManyAsync(T message, IReadOnlyList endPoints, SendOptions? options = null, CancellationToken cancellationToken = default) where T : Message => Task.CompletedTask; + public Task SendRequestAsync(TRequest message, RequestOptions? options = null, CancellationToken cancellationToken = default) + where TRequest : Message where TReply : Message => Task.FromResult(default!); + public Task> SendRequestMultiAsync(TRequest message, RequestOptions? options = null, CancellationToken cancellationToken = default) + where TRequest : Message where TReply : Message => Task.FromResult>([]); + public Task PublishRequestAsync(TRequest message, Action onReply, RequestOptions? options = null, CancellationToken cancellationToken = default) + where TRequest : Message where TReply : Message => Task.CompletedTask; + public Task RouteAsync(T message, IReadOnlyList destinations, CancellationToken cancellationToken = default) where T : Message => Task.CompletedTask; + public IMessageBusWriteStream CreateStream(string endpoint) where T : Message => throw new NotImplementedException(); + public Task StartConsumingAsync(CancellationToken cancellationToken = default) => Task.CompletedTask; + public Task StopConsumingAsync(CancellationToken cancellationToken = default) => Task.CompletedTask; + public bool IsConsuming => false; + public ValueTask DisposeAsync() => default; + // RequestTimeoutAsync NOT overridden — falls through to the DIM. + } + + [Fact] + public async Task RequestTimeoutAsync_DimNotOverridden_DefersExceptionUntilAwait() + { + IBus bus = new StubBus(); + + // The DIM must return a faulted Task — exception observed only at await — rather + // than throwing synchronously on the call line. Synchronous throws break callers + // that pattern-match on Task.Exception or chain ContinueWith. + Task task = bus.RequestTimeoutAsync(Guid.NewGuid(), TimeSpan.FromSeconds(1)); + Assert.NotNull(task); // synchronous throw would prevent reaching here + + await Assert.ThrowsAsync(async () => await task); + } +} diff --git a/src/ServiceConnect.UnitTests/Configuration/ConfigurationCleanupTests.cs b/src/ServiceConnect.UnitTests/Configuration/ConfigurationCleanupTests.cs new file mode 100644 index 000000000..f76d599fe --- /dev/null +++ b/src/ServiceConnect.UnitTests/Configuration/ConfigurationCleanupTests.cs @@ -0,0 +1,36 @@ +using Microsoft.Extensions.DependencyInjection; +using Moq; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.Configuration; + +public class ConfigurationCleanupTests +{ + [Fact] + public void OutgoingEventArgs_Headers_RejectsNullInInitializer() + { + // Headers is init-only so a subscriber cannot swap the whole dictionary + // after the framework has built it (which would let a subscriber strip + // required MessageType/CorrelationId entries before the transport send). + // A null value supplied in the initializer must still be rejected up front. + Assert.Throws(() => new SendEventArgs { Headers = null! }); + } + + [Fact] + public void OutgoingEventArgs_Headers_IsInitOnly() + { + var setter = typeof(OutgoingEventArgs).GetProperty(nameof(OutgoingEventArgs.Headers))!.SetMethod!; + var modreqs = setter.ReturnParameter.GetRequiredCustomModifiers(); + Assert.Contains(modreqs, t => t.Name == "IsExternalInit"); + } + + [Fact] + public void SendEventArgs_EndPoint_IsInitOnly() + { + // Per-delivery EndPoint is the only public surface — fan-out fires one + // SendEventArgs per destination. Correlate fan-out via CorrelationId. + var args = new SendEventArgs { EndPoint = "queue-a" }; + Assert.Equal("queue-a", args.EndPoint); + } +} diff --git a/src/ServiceConnect.UnitTests/Configuration/PersistenceConfigurationDefaultTests.cs b/src/ServiceConnect.UnitTests/Configuration/PersistenceConfigurationDefaultTests.cs new file mode 100644 index 000000000..3abba53ae --- /dev/null +++ b/src/ServiceConnect.UnitTests/Configuration/PersistenceConfigurationDefaultTests.cs @@ -0,0 +1,31 @@ +using ServiceConnect.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.Configuration; + +public class PersistenceConfigurationDefaultTests +{ + [Fact] + public void ConnectionString_DefaultsToEmpty() + { + var config = new PersistenceConfiguration(); + Assert.Equal(string.Empty, config.ConnectionString); + } + + [Fact] + public void ConnectionString_NoLongerDefaultsToLocalhost() + { + // Pin: a regression that re-introduces a localhost default for ConnectionString + // surfaces immediately rather than as a silent production accident. + var config = new PersistenceConfiguration(); + Assert.NotEqual("mongodb://localhost/", config.ConnectionString); + } + + [Fact] + public void DatabaseName_DefaultPreserved() + { + // The DatabaseName default is unchanged — only ConnectionString changes. + var config = new PersistenceConfiguration(); + Assert.Equal("RMessageBusPersistentStore", config.DatabaseName); + } +} diff --git a/src/ServiceConnect.UnitTests/Configuration/QueueConfigurationCachedMappingsTests.cs b/src/ServiceConnect.UnitTests/Configuration/QueueConfigurationCachedMappingsTests.cs new file mode 100644 index 000000000..e2c1b2078 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Configuration/QueueConfigurationCachedMappingsTests.cs @@ -0,0 +1,54 @@ +using ServiceConnect.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.Configuration; + +public sealed class QueueConfigurationCachedMappingsTests +{ + [Fact] + public void QueueMappings_TwoConsecutiveAccesses_ReturnSameReference() + { + var config = new QueueConfiguration(); + config.AddQueueMapping(typeof(string), "queue-1"); + + var first = config.QueueMappings; + var second = config.QueueMappings; + + // The QueueMappingsView wrapper is cached, so repeated access without mutation + // returns the same reference instead of allocating per call. + Assert.Same(first, second); + } + + [Fact] + public void QueueMappings_AfterMutation_ReturnsFreshWrapper() + { + var config = new QueueConfiguration(); + config.AddQueueMapping(typeof(string), "queue-1"); + var first = config.QueueMappings; + + config.AddQueueMapping(typeof(int), "queue-2"); + var second = config.QueueMappings; + + // After AddQueueMapping mutates _queueMappings, the cached wrapper is invalidated and a + // fresh one is allocated. References differ; both reflect the current mappings. + Assert.NotSame(first, second); + Assert.Equal(2, second.Count); + } + + [Fact] + public void QueueMappings_AfterListOverloadMutation_ReturnsFreshWrapper() + { + var config = new QueueConfiguration(); + config.AddQueueMapping(typeof(string), "queue-1"); + var first = config.QueueMappings; + + // The list overload also nulls _mappingsView; a regression that removes that + // invalidation would leave first and second as the same reference, and second + // would reflect only one key instead of two. + config.AddQueueMapping(typeof(int), ["queue-2", "queue-3"]); + var second = config.QueueMappings; + + Assert.NotSame(first, second); + Assert.Equal(2, second.Count); + } +} diff --git a/src/ServiceConnect.UnitTests/Configuration/QueueConfigurationTests.cs b/src/ServiceConnect.UnitTests/Configuration/QueueConfigurationTests.cs new file mode 100644 index 000000000..8dec142f9 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Configuration/QueueConfigurationTests.cs @@ -0,0 +1,157 @@ +using System; +using System.Collections.Generic; +using ServiceConnect.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.Configuration; + +public class QueueConfigurationTests +{ + [Fact] + public void DefaultQueueNameIsEmpty() + { + var config = new QueueConfiguration(); + Assert.Equal("", config.QueueName); + } + + [Fact] + public void DefaultErrorQueueNameIsErrors() + { + var config = new QueueConfiguration(); + Assert.Equal("errors", config.ErrorQueueName); + } + + [Fact] + public void DefaultAuditQueueNameIsAudit() + { + var config = new QueueConfiguration(); + Assert.Equal("audit", config.AuditQueueName); + } + + [Fact] + public void DefaultAuditingEnabledIsFalse() + { + var config = new QueueConfiguration(); + Assert.False(config.AuditingEnabled); + } + + [Fact] + public void DefaultDisableErrorsIsFalse() + { + var config = new QueueConfiguration(); + Assert.False(config.DisableErrors); + } + + [Fact] + public void DefaultPurgeQueueOnStartupIsFalse() + { + var config = new QueueConfiguration(); + Assert.False(config.PurgeQueueOnStartup); + } + + [Fact] + public void DefaultQueueMappingsIsEmptyDictionary() + { + var config = new QueueConfiguration(); + Assert.NotNull(config.QueueMappings); + Assert.Empty(config.QueueMappings); + } + + [Fact] + public void AddQueueMappingSingleQueue_CreatesEntryForType() + { + var config = new QueueConfiguration(); + config.AddQueueMapping(typeof(string), "queue1"); + + Assert.True(config.QueueMappings.ContainsKey(typeof(string).AssemblyQualifiedName!)); + Assert.Single(config.QueueMappings[typeof(string).AssemblyQualifiedName!]); + Assert.Equal("queue1", config.QueueMappings[typeof(string).AssemblyQualifiedName!][0]); + } + + [Fact] + public void AddQueueMappingSingleQueue_AppendsToPreviousMappings() + { + var config = new QueueConfiguration(); + config.AddQueueMapping(typeof(string), "queue1"); + config.AddQueueMapping(typeof(string), "queue2"); + + var queues = config.QueueMappings[typeof(string).AssemblyQualifiedName!]; + Assert.Equal(2, queues.Count); + Assert.Contains("queue1", queues); + Assert.Contains("queue2", queues); + } + + [Fact] + public void AddQueueMappingListOfQueues_CreatesEntryForType() + { + var config = new QueueConfiguration(); + config.AddQueueMapping(typeof(int), ["queueA", "queueB"]); + + var key = typeof(int).AssemblyQualifiedName!; + Assert.True(config.QueueMappings.ContainsKey(key)); + Assert.Equal(2, config.QueueMappings[key].Count); + Assert.Contains("queueA", config.QueueMappings[key]); + Assert.Contains("queueB", config.QueueMappings[key]); + } + + [Fact] + public void AddQueueMappingListOfQueues_AppendsToPreviousMappings() + { + var config = new QueueConfiguration(); + config.AddQueueMapping(typeof(int), ["queueA"]); + config.AddQueueMapping(typeof(int), ["queueB", "queueC"]); + + var queues = config.QueueMappings[typeof(int).AssemblyQualifiedName!]; + Assert.Equal(3, queues.Count); + Assert.Contains("queueA", queues); + Assert.Contains("queueB", queues); + Assert.Contains("queueC", queues); + } + + [Theory] + [InlineData(null)] + [InlineData("")] + [InlineData(" ")] + public void AddQueueMappingListOfQueues_RejectsInvalidElement(string? badQueue) + { + // The list overload must reject null/empty/whitespace entries up-front, + // matching the single-queue overload's guard so the mapping never stores + // an invalid queue name regardless of which API the caller uses. + var config = new QueueConfiguration(); + Assert.Throws( + () => config.AddQueueMapping(typeof(int), ["ok", badQueue!])); + } + + [Fact] + public void AddQueueMappingSingleQueue_DifferentTypesCreateSeparateEntries() + { + var config = new QueueConfiguration(); + config.AddQueueMapping(typeof(string), "string-queue"); + config.AddQueueMapping(typeof(int), "int-queue"); + + Assert.Equal(2, config.QueueMappings.Count); + Assert.Equal("string-queue", config.QueueMappings[typeof(string).AssemblyQualifiedName!][0]); + Assert.Equal("int-queue", config.QueueMappings[typeof(int).AssemblyQualifiedName!][0]); + } + + [Fact] + public void PropertiesAreSettable() + { + var config = new QueueConfiguration + { + QueueName = "my-queue", + ErrorQueueName = "my-errors", + AuditQueueName = "my-audit", + AuditingEnabled = true, + DisableErrors = true, + PurgeQueueOnStartup = true + }; + + Assert.Equal("my-queue", config.QueueName); + Assert.Equal("my-errors", config.ErrorQueueName); + Assert.Equal("my-audit", config.AuditQueueName); + Assert.True(config.AuditingEnabled); + Assert.True(config.DisableErrors); + Assert.True(config.PurgeQueueOnStartup); + } +} diff --git a/src/ServiceConnect.UnitTests/Configuration/RequestOptionsTests.cs b/src/ServiceConnect.UnitTests/Configuration/RequestOptionsTests.cs new file mode 100644 index 000000000..1ee95617b --- /dev/null +++ b/src/ServiceConnect.UnitTests/Configuration/RequestOptionsTests.cs @@ -0,0 +1,20 @@ +using ServiceConnect.Interfaces.Options; +using Xunit; + +namespace ServiceConnect.UnitTests.Configuration; + +public class RequestOptionsTests +{ + [Fact] + public void Default_ReturnsInstanceWithDefaultTimeout() + { + // RequestOptions is a readonly record struct, so each access to Default returns + // an independent copy by value. Mutations on one copy cannot affect another. + var first = RequestOptions.Default; + var second = RequestOptions.Default; + + Assert.Equal(RequestOptions.DefaultTimeoutMs, first.Timeout); + Assert.Equal(RequestOptions.DefaultTimeoutMs, second.Timeout); + Assert.Null(second.EndPoint); + } +} diff --git a/src/ServiceConnect.UnitTests/Configuration/SubConfigurationFreezeTests.cs b/src/ServiceConnect.UnitTests/Configuration/SubConfigurationFreezeTests.cs new file mode 100644 index 000000000..b5a2f735c --- /dev/null +++ b/src/ServiceConnect.UnitTests/Configuration/SubConfigurationFreezeTests.cs @@ -0,0 +1,277 @@ +using ServiceConnect.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.Configuration; + +/// +/// Verifies that all sub-configurations (Transport, Queues, Persistence, Pipeline) throw +/// after is called, and remain mutable before it. +/// +public class SubConfigurationFreezeTests +{ + // ── TransportConfiguration ────────────────────────────────────────────── + + [Fact] + public void TransportConfiguration_Host_AfterFreeze_Throws() + { + var config = new BusConfiguration(); + config.Freeze(); + Assert.Throws(() => config.Transport.Host = "other"); + } + + [Fact] + public void TransportConfiguration_Username_AfterFreeze_Throws() + { + var config = new BusConfiguration(); + config.Freeze(); + Assert.Throws(() => config.Transport.Username = "u"); + } + + [Fact] + public void TransportConfiguration_Password_AfterFreeze_Throws() + { + var config = new BusConfiguration(); + config.Freeze(); + Assert.Throws(() => config.Transport.Password = "p"); + } + + [Fact] + public void TransportConfiguration_RetryDelay_AfterFreeze_Throws() + { + var config = new BusConfiguration(); + config.Freeze(); + Assert.Throws(() => config.Transport.RetryDelay = 1000); + } + + [Fact] + public void TransportConfiguration_MaxRetries_AfterFreeze_Throws() + { + var config = new BusConfiguration(); + config.Freeze(); + Assert.Throws(() => config.Transport.MaxRetries = 5); + } + + [Fact] + public void TransportConfiguration_PrefetchCount_AfterFreeze_Throws() + { + var config = new BusConfiguration(); + config.Freeze(); + Assert.Throws(() => config.Transport.PrefetchCount = 2); + } + + [Fact] + public void TransportConfiguration_SslEnabled_AfterFreeze_Throws() + { + var config = new BusConfiguration(); + config.Freeze(); + Assert.Throws(() => config.Transport.SslEnabled = false); + } + + [Fact] + public void TransportConfiguration_SetClientSetting_AfterFreeze_Throws() + { + var config = new BusConfiguration(); + config.Freeze(); + Assert.Throws(() => config.Transport.SetClientSetting("k", "v")); + } + + [Fact] + public void TransportConfiguration_IsMutableBeforeFreeze() + { + var config = new BusConfiguration(); + config.Transport.Host = "myhost"; + config.Transport.MaxRetries = 10; + config.Transport.SetClientSetting("k", "v"); + + Assert.Equal("myhost", config.Transport.Host); + Assert.Equal(10, config.Transport.MaxRetries); + Assert.Single(config.Transport.ClientSettings); + } + + // ── QueueConfiguration ────────────────────────────────────────────────── + + [Fact] + public void QueueConfiguration_QueueName_AfterFreeze_Throws() + { + var config = new BusConfiguration(); + config.Freeze(); + Assert.Throws(() => config.Queues.QueueName = "x"); + } + + [Fact] + public void QueueConfiguration_ErrorQueueName_AfterFreeze_Throws() + { + var config = new BusConfiguration(); + config.Freeze(); + Assert.Throws(() => config.Queues.ErrorQueueName = "e"); + } + + [Fact] + public void QueueConfiguration_AuditQueueName_AfterFreeze_Throws() + { + var config = new BusConfiguration(); + config.Freeze(); + Assert.Throws(() => config.Queues.AuditQueueName = "a"); + } + + [Fact] + public void QueueConfiguration_AuditingEnabled_AfterFreeze_Throws() + { + var config = new BusConfiguration(); + config.Freeze(); + Assert.Throws(() => config.Queues.AuditingEnabled = true); + } + + [Fact] + public void QueueConfiguration_DisableErrors_AfterFreeze_Throws() + { + var config = new BusConfiguration(); + config.Freeze(); + Assert.Throws(() => config.Queues.DisableErrors = true); + } + + [Fact] + public void QueueConfiguration_PurgeQueueOnStartup_AfterFreeze_Throws() + { + var config = new BusConfiguration(); + config.Freeze(); + Assert.Throws(() => config.Queues.PurgeQueueOnStartup = true); + } + + [Fact] + public void QueueConfiguration_AddQueueMapping_SingleQueue_AfterFreeze_Throws() + { + var config = new BusConfiguration(); + config.Freeze(); + Assert.Throws(() => config.Queues.AddQueueMapping(typeof(string), "q")); + } + + [Fact] + public void QueueConfiguration_AddQueueMapping_ListOfQueues_AfterFreeze_Throws() + { + var config = new BusConfiguration(); + config.Freeze(); + Assert.Throws(() => config.Queues.AddQueueMapping(typeof(string), ["q1", "q2"])); + } + + [Fact] + public void QueueConfiguration_IsMutableBeforeFreeze() + { + var config = new BusConfiguration(); + config.Queues.QueueName = "my-queue"; + config.Queues.AddQueueMapping(typeof(string), "q"); + + Assert.Equal("my-queue", config.Queues.QueueName); + Assert.Single(config.Queues.QueueMappings); + } + + // ── PersistenceConfiguration ───────────────────────────────────────────── + + [Fact] + public void PersistenceConfiguration_ConnectionString_AfterFreeze_Throws() + { + var config = new BusConfiguration(); + config.Freeze(); + Assert.Throws(() => config.Persistence.ConnectionString = "conn"); + } + + [Fact] + public void PersistenceConfiguration_DatabaseName_AfterFreeze_Throws() + { + var config = new BusConfiguration(); + config.Freeze(); + Assert.Throws(() => config.Persistence.DatabaseName = "db"); + } + + [Fact] + public void PersistenceConfiguration_AggregatorCollectionName_AfterFreeze_Throws() + { + var config = new BusConfiguration(); + config.Freeze(); + Assert.Throws(() => config.Persistence.AggregatorCollectionName = "col"); + } + + [Fact] + public void PersistenceConfiguration_IsMutableBeforeFreeze() + { + var config = new BusConfiguration(); + config.Persistence.ConnectionString = "mongodb://host/"; + config.Persistence.DatabaseName = "mydb"; + + Assert.Equal("mongodb://host/", config.Persistence.ConnectionString); + Assert.Equal("mydb", config.Persistence.DatabaseName); + } + + // ── PipelineConfiguration ──────────────────────────────────────────────── + + [Fact] + public void PipelineConfiguration_BeforeConsumingFilters_Add_AfterFreeze_Throws() + { + var config = new BusConfiguration(); + config.Freeze(); + Assert.Throws(() => config.Pipeline.BeforeConsumingFilters.Add(typeof(string))); + } + + [Fact] + public void PipelineConfiguration_AfterConsumingFilters_Add_AfterFreeze_Throws() + { + var config = new BusConfiguration(); + config.Freeze(); + Assert.Throws(() => config.Pipeline.AfterConsumingFilters.Add(typeof(string))); + } + + [Fact] + public void PipelineConfiguration_OutgoingFilters_Add_AfterFreeze_Throws() + { + var config = new BusConfiguration(); + config.Freeze(); + Assert.Throws(() => config.Pipeline.OutgoingFilters.Add(typeof(string))); + } + + [Fact] + public void PipelineConfiguration_MessageProcessingMiddleware_Add_AfterFreeze_Throws() + { + var config = new BusConfiguration(); + config.Freeze(); + Assert.Throws(() => config.Pipeline.MessageProcessingMiddleware.Add(typeof(string))); + } + + [Fact] + public void PipelineConfiguration_SendMessageMiddleware_Add_AfterFreeze_Throws() + { + var config = new BusConfiguration(); + config.Freeze(); + Assert.Throws(() => config.Pipeline.SendMessageMiddleware.Add(typeof(string))); + } + + [Fact] + public void PipelineConfiguration_OnConsumedSuccessfullyFilters_Add_AfterFreeze_Throws() + { + var config = new BusConfiguration(); + config.Freeze(); + Assert.Throws(() => config.Pipeline.OnConsumedSuccessfullyFilters.Add(typeof(string))); + } + + [Fact] + public void PipelineConfiguration_IsMutableBeforeFreeze() + { + var config = new BusConfiguration(); + config.Pipeline.BeforeConsumingFilters.Add(typeof(string)); + config.Pipeline.OutgoingFilters.Add(typeof(int)); + + Assert.Single(config.Pipeline.BeforeConsumingFilters); + Assert.Single(config.Pipeline.OutgoingFilters); + } + + [Fact] + public void PipelineConfiguration_FrozenListsAreReadableAfterFreeze() + { + var config = new BusConfiguration(); + config.Pipeline.BeforeConsumingFilters.Add(typeof(string)); + config.Freeze(); + + // Reads must still work after freeze. + Assert.Single(config.Pipeline.BeforeConsumingFilters); + Assert.Equal(typeof(string), config.Pipeline.BeforeConsumingFilters[0]); + } +} diff --git a/src/ServiceConnect.UnitTests/Configuration/TransportConfigurationTests.cs b/src/ServiceConnect.UnitTests/Configuration/TransportConfigurationTests.cs new file mode 100644 index 000000000..59d8ce0a8 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Configuration/TransportConfigurationTests.cs @@ -0,0 +1,213 @@ +using System.Net.Security; +using System.Security.Authentication; +using ServiceConnect.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.Configuration; + +public class TransportConfigurationTests +{ + [Fact] + public void DefaultHostIsLocalhost() + { + var config = new TransportConfiguration(); + Assert.Equal("localhost", config.Host); + } + + [Fact] + public void DefaultUsernameIsNull() + { + var config = new TransportConfiguration(); + Assert.Null(config.Username); + } + + [Fact] + public void DefaultPasswordIsNull() + { + var config = new TransportConfiguration(); + Assert.Null(config.Password); + } + + [Fact] + public void DefaultVirtualHostIsNull() + { + var config = new TransportConfiguration(); + Assert.Null(config.VirtualHost); + } + + [Fact] + public void DefaultRetryDelayIs3000() + { + var config = new TransportConfiguration(); + Assert.Equal(3000, config.RetryDelay); + } + + [Fact] + public void DefaultMaxRetriesIs3() + { + var config = new TransportConfiguration(); + Assert.Equal(3, config.MaxRetries); + } + + [Fact] + public void DefaultPrefetchCountIs1() + { + var config = new TransportConfiguration(); + Assert.Equal((ushort)1, config.PrefetchCount); + } + + [Fact] + public void DefaultSslEnabledIsTrue() + { + var config = new TransportConfiguration(); + Assert.True(config.SslEnabled); + } + + [Fact] + public void DefaultAcceptablePolicyErrorsIsNone() + { + var config = new TransportConfiguration(); + Assert.Equal(SslPolicyErrors.None, config.AcceptablePolicyErrors); + } + + [Fact] + public void DefaultServerNameIsNull() + { + var config = new TransportConfiguration(); + Assert.Null(config.ServerName); + } + + [Fact] + public void DefaultCertPathIsNull() + { + var config = new TransportConfiguration(); + Assert.Null(config.CertPath); + } + + [Fact] + public void DefaultCertPassphraseIsNull() + { + var config = new TransportConfiguration(); + Assert.Null(config.CertPassphrase); + } + + [Fact] + public void DefaultCertsIsNull() + { + var config = new TransportConfiguration(); + Assert.Null(config.Certs); + } + + [Fact] + public void DefaultSslProtocolIsNone_DelegatesToRuntime() + { + // Default delegates to the runtime so TLS 1.3 is negotiated where available. + var config = new TransportConfiguration(); + Assert.Equal(SslProtocols.None, config.SslProtocol); + } + + [Fact] + public void DefaultCertificateSelectionCallbackIsNull() + { + var config = new TransportConfiguration(); + Assert.Null(config.CertificateSelectionCallback); + } + + [Fact] + public void DefaultCertificateValidationCallbackIsNull() + { + var config = new TransportConfiguration(); + Assert.Null(config.CertificateValidationCallback); + } + + [Fact] + public void DefaultClientSettingsIsEmptyDictionary() + { + var config = new TransportConfiguration(); + Assert.NotNull(config.ClientSettings); + Assert.Empty(config.ClientSettings); + } + + [Fact] + public void PropertiesAreSettable() + { + var config = new TransportConfiguration + { + Host = "rabbitmq-host", + Username = "admin", + Password = "secret", + VirtualHost = "/myapp", + RetryDelay = 5000, + MaxRetries = 10, + PrefetchCount = 5, + SslEnabled = false, + ServerName = "myserver" + }; + + Assert.Equal("rabbitmq-host", config.Host); + Assert.Equal("admin", config.Username); + Assert.Equal("secret", config.Password); + Assert.Equal("/myapp", config.VirtualHost); + Assert.Equal(5000, config.RetryDelay); + Assert.Equal(10, config.MaxRetries); + Assert.Equal((ushort)5, config.PrefetchCount); + Assert.False(config.SslEnabled); + Assert.Equal("myserver", config.ServerName); + } + + [Fact] + public void SetClientSetting_StoresValues() + { + var config = new TransportConfiguration(); + config.SetClientSetting("key1", "value1"); + config.SetClientSetting("key2", 42); + + Assert.Equal(2, config.ClientSettings.Count); + Assert.Equal("value1", config.ClientSettings["key1"]); + Assert.Equal(42, config.ClientSettings["key2"]); + } + + [Fact] + public void SetClientSetting_OverwritesExistingValue() + { + var config = new TransportConfiguration(); + config.SetClientSetting("key", "original"); + config.SetClientSetting("key", "updated"); + + Assert.Single(config.ClientSettings); + Assert.Equal("updated", config.ClientSettings["key"]); + } + + [Fact] + public void SetClientSetting_ThrowsOnNullKey() + { + var config = new TransportConfiguration(); + Assert.Throws(() => config.SetClientSetting(null!, "value")); + } + + [Fact] + public void SetClientSetting_ThrowsOnNullValue() + { + var config = new TransportConfiguration(); + Assert.Throws(() => config.SetClientSetting("key", null!)); + } + + [Fact] + public void ClientSettings_AfterFreeze_DowncastMutationThrows() + { + var t = new TransportConfiguration(); + t.SetClientSetting("Port", 5671); + t.Freeze(); + + // Hostile downcast — must not succeed in mutating the frozen state. + var view = t.ClientSettings; + + // The view must NOT be the same instance as the underlying mutable dictionary. + var dictView = view as Dictionary; + Assert.Null(dictView); + + // Even if a caller obtains the underlying ReadOnlyDictionary view, .Add throws. + Assert.Throws(() => + ((IDictionary)view).Add("Hostile", new object())); + } +} diff --git a/src/ServiceConnect.UnitTests/ConfigurationTests.cs b/src/ServiceConnect.UnitTests/ConfigurationTests.cs deleted file mode 100644 index 5e399fff2..000000000 --- a/src/ServiceConnect.UnitTests/ConfigurationTests.cs +++ /dev/null @@ -1,282 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; -using System.Linq; -using System.Reflection; -using ServiceConnect.Client.RabbitMQ; -using ServiceConnect.Interfaces; -using ServiceConnect.Persistance.SqlServer; -using ServiceConnect.UnitTests.Fakes.Messages; -using Xunit; - -namespace ServiceConnect.UnitTests -{ - public class ConfigurationTests - { - [Fact] - public void ShouldSetDefaultConfigurationWhenInstantiatingConfiguration() - { - // Act - var configuration = new Configuration(); - - // Assert - Assert.Equal(typeof(Consumer), configuration.ConsumerType); - Assert.Equal(typeof(SqlServerProcessManagerFinder), configuration.ProcessManagerFinder); - Assert.Equal("RMessageBusPersistantStore", configuration.PersistenceStoreDatabaseName); - Assert.Equal("mongodb://localhost/", configuration.PersistenceStoreConnectionString); - Assert.Equal("Aggregator", configuration.PersistenceStoreAggregatorCollectionName); - } - - [Fact] - public void ShouldSetDefaultTransportSettingsWhenInstantiatingConfiguration() - { - // Act - var configuration = new Configuration(); - - // Assert - Assert.NotNull(configuration.TransportSettings); - Assert.NotNull(configuration.TransportSettings.ClientSettings); - Assert.Equal("localhost", configuration.TransportSettings.Host); - Assert.Equal(3, configuration.TransportSettings.MaxRetries); - Assert.Equal(3000, configuration.TransportSettings.RetryDelay); - Assert.Null(configuration.TransportSettings.Username); - Assert.Null(configuration.TransportSettings.Password); - //Assert.Equal(System.Diagnostics.Process.GetCurrentProcess().ProcessName, configuration.TransportSettings.QueueName); - Assert.Equal(Assembly.GetEntryAssembly().GetName().Name, configuration.TransportSettings.QueueName); - Assert.False(configuration.TransportSettings.AuditingEnabled); - Assert.Equal("errors", configuration.TransportSettings.ErrorQueueName); - Assert.Equal("audit", configuration.TransportSettings.AuditQueueName); - } - - [Fact] - public void ShouldCreateInstanceOfConsumer() - { - // Arrange - var configuration = new Configuration(); - configuration.SetConsumer(); - - // Act - IConsumer consumer = configuration.GetConsumer(); - - // Assert - Assert.Equal(typeof(FakeConsumer), consumer.GetType()); - } - - [Fact] - public void ShouldSetupQueueName() - { - // Arrange - var configuration = new Configuration(); - configuration.SetQueueName("TestQueueName"); - - // Act - var result = configuration.GetQueueName(); - - // Assert - Assert.Equal("TestQueueName", result); - } - - [Fact] - public void ShouldSetHost() - { - // Arrange - var configuration = new Configuration(); - configuration.SetHost("Host"); - - // Act - var result = configuration.TransportSettings.Host; - - // Assert - Assert.Equal("Host", result); - } - - [Fact] - public void ShouldSetupErrorQueueName() - { - // Arrange - var configuration = new Configuration(); - configuration.SetErrorQueueName("TestErrorQueueName"); - - // Act - var result = configuration.GetErrorQueueName(); - - // Assert - Assert.Equal("TestErrorQueueName", result); - } - - [Fact] - public void ShouldSetupAuditQueueName() - { - // Arrange - var configuration = new Configuration(); - configuration.SetAuditQueueName("TestAuditQueueName"); - - // Act - var result = configuration.GetAuditQueueName(); - - // Assert - Assert.Equal("TestAuditQueueName", result); - } - - [Fact] - public void ShouldSetupAuditingEnabled() - { - // Arrange - var configuration = new Configuration(); - configuration.SetAuditingEnabled(true); - - // Act - var result = configuration.TransportSettings.AuditingEnabled; - - // Assert - Assert.True(result); - } - - [Fact] - public void ShouldAddMappingToEndPointMappings() - { - // Arrange - var configuration = new Configuration(); - - // Act - configuration.AddQueueMapping(typeof(FakeMessage1), "MyEndPoint"); - - // Assert - Assert.Contains(configuration.QueueMappings, x => x.Key == typeof(FakeMessage1).FullName && x.Value.Contains("MyEndPoint")); - } - - [Fact] - public void ShouldSetExceptionHandler() - { - // Arrange - var configuration = new Configuration(); - Action action = exception => { }; - - // Act - configuration.SetExceptionHandler(action); - - // Assert - Assert.Equal(action, configuration.ExceptionHandler); - } - - [Fact] - public void ShouldSetPurgeQueuesOnStart() - { - // Arrange - var configuration = new Configuration(); - - // Act - configuration.PurgeQueuesOnStart(); - - // Assert - Assert.True(configuration.TransportSettings.PurgeQueueOnStartup); - } - - [Fact] - public void ShouldGetContainerOfSpecifiedType() - { - // Arrange - var configuration = new Configuration(); - configuration.SetContainerType(); - - // Act - var result = configuration.GetContainer(); - - // Assert - Assert.IsType(result); - } - - public class FakeContainer : IBusContainer - { - public IEnumerable GetHandlerTypes() - { - throw new NotImplementedException(); - } - - public IEnumerable GetHandlerTypes(params Type[] messageHandler) - { - throw new NotImplementedException(); - } - - public object GetInstance(Type handlerType) - { - throw new NotImplementedException(); - } - - public T GetInstance(IDictionary arguments) - { - throw new NotImplementedException(); - } - - public T GetInstance() - { - throw new NotImplementedException(); - } - - public void ScanForHandlers() - { - throw new NotImplementedException(); - } - - public void Initialize() - { - } - - public void Initialize(object container) - { - throw new NotImplementedException(); - } - - public void AddBus(IBus bus) - { - throw new NotImplementedException(); - } - - public object GetContainer() - { - throw new NotImplementedException(); - } - - public void AddHandler(Type handlerType, T handler) - { - throw new NotImplementedException(); - } - } - - public class FakeConsumer : IConsumer - { - public FakeConsumer(ILogger logger) - {} - - public void Dispose() - { - throw new NotImplementedException(); - } - - public bool IsConnected() - { - throw new NotImplementedException(); - } - - public void StartConsuming(string queueName, IList messageTypes, ConsumerEventHandler eventHandler, IConfiguration config) - { - throw new NotImplementedException(); - } - } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.UnitTests/ConsumeMessageEventTests.cs b/src/ServiceConnect.UnitTests/ConsumeMessageEventTests.cs deleted file mode 100644 index 370c40f8e..000000000 --- a/src/ServiceConnect.UnitTests/ConsumeMessageEventTests.cs +++ /dev/null @@ -1,74 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; -using System.Text; -using Moq; -using Newtonsoft.Json; -using ServiceConnect.Core; -using ServiceConnect.Interfaces; -using ServiceConnect.UnitTests.Aggregator; -using ServiceConnect.UnitTests.Fakes.Messages; -using Xunit; - -namespace ServiceConnect.UnitTests -{ - public class ConsumeMessageEventTests - { - private Mock _mockConfiguration; - private Mock _mockContainer; - private Mock _mockConsumer; - private Mock _mockProducer; - private ConsumerEventHandler _fakeEventHandler; - - public ConsumeMessageEventTests() - { - _mockConfiguration = new Mock(); - _mockContainer = new Mock(); - _mockConsumer = new Mock(); - _mockProducer = new Mock(); - _mockConfiguration.Setup(x => x.GetContainer()).Returns(_mockContainer.Object); - _mockConfiguration.Setup(x => x.GetProducer()).Returns(_mockProducer.Object); - _mockConfiguration.SetupGet(x => x.TransportSettings).Returns(new TransportSettings { QueueName = "ServiceConnect.UnitTests" }); - - _mockConfiguration.Setup(x => x.GetConsumer()).Returns(_mockConsumer.Object); - } - - public bool AssignEventHandler(ConsumerEventHandler eventHandler) - { - _fakeEventHandler = eventHandler; - return true; - } - - [Fact] - public void ShouldNotCreateMultipleConsumers() - { - // Arrange - _mockConfiguration.SetupGet(x => x.AutoStartConsuming).Returns(true); - _mockConfiguration.SetupGet(x => x.ScanForMesssageHandlers).Returns(false); - _mockConfiguration.Setup(x => x.SetAuditingEnabled(false)); - _mockConfiguration.Setup(x => x.Clients).Returns(1); - _mockConsumer.Setup(x => x.StartConsuming(It.IsAny(), It.IsAny>(), It.IsAny(), It.IsAny())); - - // Act - var bus = new ServiceConnect.Bus(_mockConfiguration.Object); - - // Assert - _mockConsumer.Verify(x => x.StartConsuming(It.IsAny(), It.IsAny>(), It.IsAny(), It.IsAny()), Times.Once); - } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.UnitTests/ConsumerTests.cs b/src/ServiceConnect.UnitTests/ConsumerTests.cs deleted file mode 100644 index fff3333a8..000000000 --- a/src/ServiceConnect.UnitTests/ConsumerTests.cs +++ /dev/null @@ -1,133 +0,0 @@ -using System.Collections.Generic; -using Moq; -using RabbitMQ.Client; -using ServiceConnect.Client.RabbitMQ; -using ServiceConnect.Core; -using ServiceConnect.Interfaces; -using Xunit; - -namespace ServiceConnect.UnitTests -{ - public class ConsumerTests - { - private readonly Mock _mockConnection; - private readonly Mock _mockModel; - private Mock _mockLogger; - - public ConsumerTests() - { - _mockModel = new Mock(); - _mockConnection = new Mock(); - _mockConnection.Setup(i => i.Connect()); - _mockConnection.Setup(i => i.CreateModel()).Returns(_mockModel.Object); - _mockLogger = new Mock(); - } - - [Fact] - public void ShouldNotCreateRetryQueueIfMaxRetriesIs0() - { - // Arrange - IConsumer consumer = new Consumer(_mockConnection.Object, _mockLogger.Object); - - IConfiguration config = new Configuration(); - config.TransportSettings = new TransportSettings { ErrorQueueName = "myQueue.Errors", AuditQueueName = "myQueue.Audit", MaxRetries = 0}; - config.TransportSettings.ClientSettings = new Dictionary(); - - - // Act - consumer.StartConsuming("myQueue", new List(), null, config); - - - // Assert - _mockModel.Verify(x => x.QueueDeclare("myQueue", true, false, false, It.IsAny>()), Times.Once); - _mockModel.Verify(x => x.ExchangeDeclare("myQueue.Retries.DeadLetter", "direct", true, false, null), Times.Never); - _mockModel.Verify(x => x.QueueDeclare("myQueue.Retries", true, false, false, It.IsAny>()), Times.Never); - _mockModel.Verify(x => x.ExchangeDeclare("myQueue.Errors", "direct", false, false, null), Times.Once); - _mockModel.Verify(x => x.QueueDeclare("myQueue.Errors", true, false, false, It.IsAny>()), Times.Once); - _mockModel.Verify(x => x.QueueDeclare("myQueue.Audit", true, false, false, It.IsAny>()), Times.Never); - } - - [Fact] - public void TestConsumerWithDefaultSettings() - { - // Arrange - IConsumer consumer = new Consumer(_mockConnection.Object, _mockLogger.Object); - - IConfiguration config = new Configuration(); - config.TransportSettings = new TransportSettings {ErrorQueueName = "myQueue.Errors", AuditQueueName = "myQueue.Audit", MaxRetries = 1}; - config.TransportSettings.ClientSettings = new Dictionary(); - - - // Act - consumer.StartConsuming("myQueue", new List(), null, config); - - - // Assert - _mockModel.Verify(x => x.QueueDeclare("myQueue", true, false, false, It.IsAny>()), Times.Once); - _mockModel.Verify(x => x.ExchangeDeclare("myQueue.Retries.DeadLetter", "direct", true, false, null), Times.Once); - _mockModel.Verify(x => x.QueueDeclare("myQueue.Retries", true, false, false, It.IsAny>()), Times.Once); - _mockModel.Verify(x => x.ExchangeDeclare("myQueue.Errors", "direct", false, false, null), Times.Once); - _mockModel.Verify(x => x.QueueDeclare("myQueue.Errors", true, false, false, It.IsAny>()), Times.Once); - _mockModel.Verify(x => x.QueueDeclare("myQueue.Audit", true, false, false, It.IsAny>()), Times.Never); - } - - [Fact] - public void TestConsumerDeclaresAuditQueue() - { - // Arrange - IConsumer consumer = new Consumer(_mockConnection.Object, _mockLogger.Object); - - IConfiguration config = new Configuration(); - config.TransportSettings = new TransportSettings { ErrorQueueName = "myQueue.Errors", AuditQueueName = "myQueue.Audit", AuditingEnabled = true }; - config.TransportSettings.ClientSettings = new Dictionary(); - - - // Act - consumer.StartConsuming("myQueue", new List(), null, config); - - - // Assert - _mockModel.Verify(x => x.ExchangeDeclare("myQueue.Audit", "direct", false, false, null), Times.Once); - _mockModel.Verify(x => x.QueueDeclare("myQueue.Audit", true, false, false, It.IsAny>()), Times.Once); - } - - [Fact] - public void TestConsumerPurgesQueueOnStartup() - { - // Arrange - IConsumer consumer = new Consumer(_mockConnection.Object, _mockLogger.Object); - - IConfiguration config = new Configuration(); - config.TransportSettings = new TransportSettings { PurgeQueueOnStartup = true }; - config.TransportSettings.ClientSettings = new Dictionary(); - - - // Act - consumer.StartConsuming("myQueue", new List(), null, config); - - - // Assert - _mockModel.Verify(x => x.QueuePurge("myQueue"), Times.Once); - } - - [Fact] - public void TestConsumerConsumesMessageType() - { - // Arrange - IConsumer consumer = new Consumer(_mockConnection.Object, _mockLogger.Object); - - IConfiguration config = new Configuration(); - config.TransportSettings = new TransportSettings { PurgeQueueOnStartup = true }; - config.TransportSettings.ClientSettings = new Dictionary(); - - - // Act - consumer.StartConsuming("myQueue", new List {"MyMessageType1"}, null, config); - - - // Assert - _mockModel.Verify(x => x.ExchangeDeclare("MyMessageType1", "fanout", true, false, null), Times.Once); - _mockModel.Verify(x => x.QueueBind("myQueue", "MyMessageType1", string.Empty, null), Times.Once); - } - } -} diff --git a/src/ServiceConnect.UnitTests/Container/DefaultBusContainerTests.cs b/src/ServiceConnect.UnitTests/Container/DefaultBusContainerTests.cs deleted file mode 100644 index c3d286dd6..000000000 --- a/src/ServiceConnect.UnitTests/Container/DefaultBusContainerTests.cs +++ /dev/null @@ -1,181 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using ServiceConnect.Container.Default; -using ServiceConnect.Core; -using ServiceConnect.Interfaces; -using Xunit; - -namespace ServiceConnect.UnitTests.Container -{ - public class DefaultBusContainerTests - { - public class MyMessage : Message - { - public MyMessage(Guid correlationId) : base(correlationId) - { - } - } - - public class MyMessageHandler : IMessageHandler - { - public IConsumeContext Context { get; set; } - public void Execute(MyMessage message) - { - throw new NotImplementedException(); - } - } - - public class MyMessageHandler2 : IMessageHandler - { - public MyMessageHandler2(string name) - {} - public IConsumeContext Context { get; set; } - public void Execute(MyMessage message) - { - throw new NotImplementedException(); - } - } - - [RoutingKey("key1")] - public class MyMessageHandler3 : IMessageHandler - { - public MyMessageHandler3(string name) - { } - public IConsumeContext Context { get; set; } - public void Execute(MyMessage message) - { - throw new NotImplementedException(); - } - } - - [Fact] - public void ShouldGetAllHandlerReferences() - { - // Arrange - var services = new ServiceConnect.Container.Default.Container(); - services.RegisterForAll(typeof(MyMessageHandler)); - var busContainer = new DefaultBusContainer(); - busContainer.Initialize(services); - - // Act - var result = busContainer.GetHandlerTypes(); - - // Assert - Assert.NotNull(result); - Assert.Single(result); - Assert.Equal("MyMessage", result.ToList()[0].MessageType.Name); - Assert.Equal("MyMessageHandler", result.ToList()[0].HandlerType.Name); - } - - [Fact] - public void ShouldGetAllHandlerReferencesWithRoutingKey() - { - // Arrange - var services = new ServiceConnect.Container.Default.Container(); - services.RegisterForAll(typeof(MyMessageHandler3)); - var busContainer = new DefaultBusContainer(); - busContainer.Initialize(services); - - // Act - var result = busContainer.GetHandlerTypes(); - - // Assert - Assert.NotNull(result); - Assert.Single(result); - Assert.Equal("MyMessage", result.ToList()[0].MessageType.Name); - Assert.Equal("MyMessageHandler3", result.ToList()[0].HandlerType.Name); - Assert.Equal("key1", result.ToList()[0].RoutingKeys[0]); - } - - [Fact] - public void ShouldGetAllHandlerReferencesForMessageHandlerType() - { - // Arrange - var services = new ServiceConnect.Container.Default.Container(); - services.RegisterForAll(typeof(MyMessageHandler)); - var busContainer = new DefaultBusContainer(); - busContainer.Initialize(services); - - // Act - var result = busContainer.GetHandlerTypes(typeof(IMessageHandler)); - - // Assert - Assert.NotNull(result); - Assert.Single(result); - Assert.Equal("MyMessage", result.ToList()[0].MessageType.Name); - Assert.Equal("MyMessageHandler", result.ToList()[0].HandlerType.Name); - } - - [Fact] - public void ShouldGetAllHandlerReferencesForMessageHandlerTypeWithRoutingKey() - { - // Arrange - var services = new ServiceConnect.Container.Default.Container(); - services.RegisterForAll(typeof(MyMessageHandler3)); - var busContainer = new DefaultBusContainer(); - busContainer.Initialize(services); - - // Act - var result = busContainer.GetHandlerTypes(typeof(IMessageHandler)); - - // Assert - Assert.NotNull(result); - Assert.Single(result); - Assert.Equal("MyMessage", result.ToList()[0].MessageType.Name); - Assert.Equal("MyMessageHandler3", result.ToList()[0].HandlerType.Name); - Assert.Equal("key1", result.ToList()[0].RoutingKeys[0]); - } - - [Fact] - public void ShouldGetInstanceOfRegisteredType() - { - // Arrange - var services = new ServiceConnect.Container.Default.Container(); - services.RegisterForAll(typeof(MyMessageHandler)); - var busContainer = new DefaultBusContainer(); - busContainer.Initialize(services); - - // Act - var result = busContainer.GetInstance(typeof(IMessageHandler)); - - // Assert - Assert.NotNull(result); - Assert.Equal("MyMessageHandler", result.GetType().Name); - } - - [Fact] - public void ShouldGetInstanceOfRegisteredTypeWithCtorParameters() - { - // Arrange - var services = new ServiceConnect.Container.Default.Container(); - services.RegisterForAll(typeof(MyMessageHandler2)); - var busContainer = new DefaultBusContainer(); - busContainer.Initialize(services); - - // Act - var result = busContainer.GetInstance>(new Dictionary {{"name", "TestName"}}); - - // Assert - Assert.NotNull(result); - Assert.Equal("MyMessageHandler2", result.GetType().Name); - } - - [Fact] - public void ShouldGetTypedInstanceOfRegisteredType() - { - // Arrange - var services = new ServiceConnect.Container.Default.Container(); - services.RegisterForAll(typeof(MyMessageHandler)); - var busContainer = new DefaultBusContainer(); - busContainer.Initialize(services); - - // Act - var result = busContainer.GetInstance>(); - - // Assert - Assert.NotNull(result); - Assert.Equal("MyMessageHandler", result.GetType().Name); - } - } -} diff --git a/src/ServiceConnect.UnitTests/Container/DefaultContainerTests.cs b/src/ServiceConnect.UnitTests/Container/DefaultContainerTests.cs deleted file mode 100644 index b9b78446c..000000000 --- a/src/ServiceConnect.UnitTests/Container/DefaultContainerTests.cs +++ /dev/null @@ -1,126 +0,0 @@ -using System.Collections.Generic; -using System.Linq; -using System.Reflection; -using Xunit; - -namespace ServiceConnect.UnitTests.Container -{ - public class DefaultContainerTests - { - public interface IMyInterface - { - string Name { get; set; } - void Test(); - } - - public class MyImplementation : IMyInterface - { - public string Name { get; set; } - public void Test() - {} - } - - public class MyImplementationWithCtor : IMyInterface - { - public MyImplementationWithCtor(string name) - { - Name = name; - } - public string Name { get; set; } - public void Test() - { } - } - - public class MyGenericImplementation : IMyInterface - { - public string Name { get; set; } - public void Test() - {} - } - - [Fact] - public void ShouldResolveExplicitelyRegisteredType() - { - // Arrange - var services = new ServiceConnect.Container.Default.Container(); - services.RegisterFor(typeof (MyImplementation), typeof (IMyInterface)); - - // Act - var result = services.Resolve>(); - - // Assert - Assert.NotNull(result); - Assert.Equal("MyImplementation", result.GetType().Name); - } - - [Fact] - public void ShouldResolveImplicitelyRegisteredType() - { - // Arrange - var services = new ServiceConnect.Container.Default.Container(); - services.RegisterForAll(typeof(MyImplementation)); - - // Act - var result = services.Resolve>(); - - // Assert - Assert.NotNull(result); - Assert.Equal("MyImplementation", result.GetType().Name); - } - - [Fact] - public void ShouldResolveImplicitelyRegisteredGenericTypes() - { - // Arrange - var services = new ServiceConnect.Container.Default.Container(); - services.RegisterForAll(typeof(MyGenericImplementation<>)); - - // Act - var result1 = services.Resolve>(); - var result2 = services.Resolve>(); - - // Assert - Assert.NotNull(result1); - Assert.True(result1.GetType().GetTypeInfo().IsGenericType); - Assert.Single(result1.GetType().GenericTypeArguments); - Assert.Equal("Int32", result1.GetType().GenericTypeArguments[0].Name); - - Assert.NotNull(result2); - Assert.True(result2.GetType().GetTypeInfo().IsGenericType); - Assert.Single(result2.GetType().GetTypeInfo().GetGenericArguments()); - Assert.Equal("String", result2.GetType().GenericTypeArguments[0].Name); - } - - [Fact] - public void ShouldResolveRegisteredInstances() - { - // Arrange - IMyInterface myInstance = new MyGenericImplementation(); - myInstance.Name = "test"; - var services = new ServiceConnect.Container.Default.Container(); - services.RegisterFor(myInstance, typeof(IMyInterface)); - - // Act - var result = services.Resolve(typeof(IMyInterface)); - - // Assert - Assert.NotNull(result); - Assert.Equal("test", ((IMyInterface)result).Name); - } - - [Fact] - public void ShouldResolveRegisteredTypeWithCtorParams() - { - // Arrange - var services = new ServiceConnect.Container.Default.Container(); - services.RegisterFor(typeof(MyImplementationWithCtor), typeof(IMyInterface)); - - // Act - var result = services.Resolve(typeof(IMyInterface), new Dictionary { {"name", "testName"} }); - - // Assert - Assert.NotNull(result); - Assert.Equal("testName", ((IMyInterface)result).Name); - } - } -} diff --git a/src/ServiceConnect.UnitTests/Container/ServiceCollectionContainerTests.cs b/src/ServiceConnect.UnitTests/Container/ServiceCollectionContainerTests.cs deleted file mode 100644 index 43f0cca6f..000000000 --- a/src/ServiceConnect.UnitTests/Container/ServiceCollectionContainerTests.cs +++ /dev/null @@ -1,199 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using Microsoft.Extensions.DependencyInjection; -using ServiceConnect.Container.ServiceCollection; -using ServiceConnect.Core; -using ServiceConnect.Interfaces; -using Xunit; - -namespace ServiceConnect.UnitTests.Container -{ - public class ServiceCollectionContainerTests - { - public class MyMessage : Message - { - public MyMessage(Guid correlationId) - : base(correlationId) - { - } - } - - public class MyMessageHandler : IMessageHandler - { - public IConsumeContext Context { get; set; } - public void Execute(MyMessage message) - { - throw new NotImplementedException(); - } - } - - public class MyMessageHandler2 : IMessageHandler - { - public MyMessageHandler2(string name) - { } - public IConsumeContext Context { get; set; } - public void Execute(MyMessage message) - { - throw new NotImplementedException(); - } - } - - [RoutingKey("key1")] - public class MyMessageHandler3 : IMessageHandler - { - public MyMessageHandler3() - { } - public IConsumeContext Context { get; set; } - public void Execute(MyMessage message) - { - throw new NotImplementedException(); - } - } - - [Fact] - public void ShouldGetAllHandlerReferences() - { - // Arrange - var busContainer = new ServiceCollectionContainer(); - busContainer.AddHandler(typeof(IMessageHandler), new MyMessageHandler()); - - // Act - var result = busContainer.GetHandlerTypes(); - - // Assert - Assert.NotNull(result); - Assert.Single(result); - Assert.Equal("MyMessage", result.ToList()[0].MessageType.Name); - Assert.Equal("MyMessageHandler", result.ToList()[0].HandlerType.Name); - } - - [Fact] - public void ShouldGetAllHandlerReferencesWithRoutingKey() - { - // Arrange - var busContainer = new ServiceCollectionContainer(); - busContainer.AddHandler(typeof(IMessageHandler), new MyMessageHandler3()); - - // Act - var result = busContainer.GetHandlerTypes(); - - // Assert - Assert.NotNull(result); - Assert.Single(result); - Assert.Equal("MyMessage", result.ToList()[0].MessageType.Name); - Assert.Equal("MyMessageHandler3", result.ToList()[0].HandlerType.Name); - Assert.Equal("key1", result.ToList()[0].RoutingKeys[0]); - } - - [Fact] - public void ShouldGetAllHandlerReferencesForMessageHandlerType() - { - // Arrange - var busContainer = new ServiceCollectionContainer(); - busContainer.AddHandler(typeof(IMessageHandler), new MyMessageHandler()); - - // Act - var result = busContainer.GetHandlerTypes(typeof(IMessageHandler)); - - // Assert - Assert.NotNull(result); - Assert.Single(result); - Assert.Equal("MyMessage", result.ToList()[0].MessageType.Name); - Assert.Equal("MyMessageHandler", result.ToList()[0].HandlerType.Name); - } - - [Fact] - public void ShouldGetAllHandlerReferencesForMessageHandlerTypeWithRoutingKey() - { - // Arrange - var busContainer = new ServiceCollectionContainer(); - busContainer.AddHandler(typeof(IMessageHandler), new MyMessageHandler3()); - - // Act - var result = busContainer.GetHandlerTypes(typeof(IMessageHandler)); - - // Assert - Assert.NotNull(result); - Assert.Single(result); - Assert.Equal("MyMessage", result.ToList()[0].MessageType.Name); - Assert.Equal("MyMessageHandler3", result.ToList()[0].HandlerType.Name); - Assert.Equal("key1", result.ToList()[0].RoutingKeys[0]); - } - - [Fact] - public void ShouldGetInstanceOfRegisteredType() - { - // Arrange - var busContainer = new ServiceCollectionContainer(); - busContainer.AddHandler(typeof(IMessageHandler), new MyMessageHandler()); - - - // Act - var result = busContainer.GetInstance(typeof(IMessageHandler)); - - // Assert - Assert.NotNull(result); - Assert.Equal("MyMessageHandler", result.GetType().Name); - } - - [Fact] - public void ShouldGetInstanceOfRegisteredTypeWithCtorParameters() - { - // Arrange - var busContainer = new ServiceCollectionContainer(); - busContainer.AddHandler(typeof(IMessageHandler), new MyMessageHandler2("TestName")); - - // Act - var result = busContainer.GetInstance>(new Dictionary { { "name", "TestName" } }); - - // Assert - Assert.NotNull(result); - Assert.Equal("MyMessageHandler2", result.GetType().Name); - } - - [Fact] - public void ShouldGetSameInstanceOfSingletonRegisteredType() - { - // Arrange - var services = new ServiceCollection(); - services.AddSingleton, MyMessageHandler>(); - - var busContainer = new ServiceCollectionContainer(); - busContainer.Initialize(services); - - // Act - var result1 = busContainer.GetInstance(typeof(IMessageHandler)); - var result2 = busContainer.GetInstance(typeof(IMessageHandler)); - - // Assert - Assert.NotNull(result1); - Assert.NotNull(result2); - Assert.Equal("MyMessageHandler", result1.GetType().Name); - Assert.Equal("MyMessageHandler", result2.GetType().Name); - Assert.Same(result1, result2); - } - - [Fact] - public void ShouldGetDifferentInstanceOfTransientRegisteredType() - { - // Arrange - var services = new ServiceCollection(); - services.AddTransient, MyMessageHandler>(); - - var busContainer = new ServiceCollectionContainer(); - busContainer.Initialize(services); - - // Act - var result1 = busContainer.GetInstance(typeof(IMessageHandler)); - var result2 = busContainer.GetInstance(typeof(IMessageHandler)); - - // Assert - Assert.NotNull(result1); - Assert.NotNull(result2); - Assert.Equal("MyMessageHandler", result1.GetType().Name); - Assert.Equal("MyMessageHandler", result2.GetType().Name); - Assert.NotSame(result1, result2); - } - } -} diff --git a/src/ServiceConnect.UnitTests/Container/StructureMapContainerTests.cs b/src/ServiceConnect.UnitTests/Container/StructureMapContainerTests.cs deleted file mode 100644 index 2836504d2..000000000 --- a/src/ServiceConnect.UnitTests/Container/StructureMapContainerTests.cs +++ /dev/null @@ -1,156 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using System.Text; -using System.Threading.Tasks; -using ServiceConnect.Container.StructureMap; -using ServiceConnect.Core; -using ServiceConnect.Interfaces; -using Xunit; - -namespace ServiceConnect.UnitTests.Container -{ - public class StructureMapContainerTests - { - public class MyMessage : Message - { - public MyMessage(Guid correlationId) - : base(correlationId) - { - } - } - - public class MyMessageHandler : IMessageHandler - { - public IConsumeContext Context { get; set; } - public void Execute(MyMessage message) - { - throw new NotImplementedException(); - } - } - - public class MyMessageHandler2 : IMessageHandler - { - public MyMessageHandler2(string name) - { } - public IConsumeContext Context { get; set; } - public void Execute(MyMessage message) - { - throw new NotImplementedException(); - } - } - - [RoutingKey("key1")] - public class MyMessageHandler3 : IMessageHandler - { - public MyMessageHandler3() - { } - public IConsumeContext Context { get; set; } - public void Execute(MyMessage message) - { - throw new NotImplementedException(); - } - } - - [Fact] - public void ShouldGetAllHandlerReferences() - { - // Arrange - var busContainer = new StructureMapContainer(); - busContainer.AddHandler(typeof(IMessageHandler), new MyMessageHandler()); - - // Act - var result = busContainer.GetHandlerTypes(); - - // Assert - Assert.NotNull(result); - Assert.Single(result); - Assert.Equal("MyMessage", result.ToList()[0].MessageType.Name); - Assert.Equal("MyMessageHandler", result.ToList()[0].HandlerType.Name); - } - - [Fact] - public void ShouldGetAllHandlerReferencesWithRoutingKey() - { - // Arrange - var busContainer = new StructureMapContainer(); - busContainer.AddHandler(typeof(IMessageHandler), new MyMessageHandler3()); - - // Act - var result = busContainer.GetHandlerTypes(); - - // Assert - Assert.NotNull(result); - Assert.Single(result); - Assert.Equal("MyMessage", result.ToList()[0].MessageType.Name); - Assert.Equal("MyMessageHandler3", result.ToList()[0].HandlerType.Name); - Assert.Equal("key1", result.ToList()[0].RoutingKeys[0]); - } - - [Fact] - public void ShouldGetAllHandlerReferencesForMessageHandlerType() - { - // Arrange - var busContainer = new StructureMapContainer(); - busContainer.AddHandler(typeof(IMessageHandler), new MyMessageHandler()); - - // Act - var result = busContainer.GetHandlerTypes(typeof(IMessageHandler)); - - // Assert - Assert.NotNull(result); - Assert.Single(result); - Assert.Equal("MyMessage", result.ToList()[0].MessageType.Name); - Assert.Equal("MyMessageHandler", result.ToList()[0].HandlerType.Name); - } - - [Fact] - public void ShouldGetAllHandlerReferencesForMessageHandlerTypeWithRoutingKey() - { - // Arrange - var busContainer = new StructureMapContainer(); - busContainer.AddHandler(typeof(IMessageHandler), new MyMessageHandler3()); - - // Act - var result = busContainer.GetHandlerTypes(typeof(IMessageHandler)); - - // Assert - Assert.NotNull(result); - Assert.Single(result); - Assert.Equal("MyMessage", result.ToList()[0].MessageType.Name); - Assert.Equal("MyMessageHandler3", result.ToList()[0].HandlerType.Name); - Assert.Equal("key1", result.ToList()[0].RoutingKeys[0]); - } - - [Fact] - public void ShouldGetInstanceOfRegisteredType() - { - // Arrange - var busContainer = new StructureMapContainer(); - busContainer.AddHandler(typeof(IMessageHandler), new MyMessageHandler()); - - - // Act - var result = busContainer.GetInstance(typeof(IMessageHandler)); - - // Assert - Assert.NotNull(result); - Assert.Equal("MyMessageHandler", result.GetType().Name); - } - - [Fact] - public void ShouldGetInstanceOfRegisteredTypeWithCtorParameters() - { - // Arrange - var busContainer = new StructureMapContainer(); - busContainer.AddHandler(typeof(IMessageHandler), new MyMessageHandler2("TestName")); - - // Act - var result = busContainer.GetInstance>(new Dictionary { { "name", "TestName" } }); - - // Assert - Assert.NotNull(result); - Assert.Equal("MyMessageHandler2", result.GetType().Name); - } - } -} diff --git a/src/ServiceConnect.UnitTests/DI/OnConsumedSuccessfullyFiltersValidationTests.cs b/src/ServiceConnect.UnitTests/DI/OnConsumedSuccessfullyFiltersValidationTests.cs new file mode 100644 index 000000000..d43ab1c63 --- /dev/null +++ b/src/ServiceConnect.UnitTests/DI/OnConsumedSuccessfullyFiltersValidationTests.cs @@ -0,0 +1,33 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.DependencyInjection; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.DI; + +public class OnConsumedSuccessfullyFiltersValidationTests +{ + public sealed class UnregisteredFilter : IFilter + { + public Task ProcessAsync(Envelope envelope, CancellationToken cancellationToken = default) + => Task.FromResult(FilterAction.Continue); + } + + [Fact] + public void AddServiceConnect_FailsAtStartup_WhenOnConsumedSuccessfullyFilterIsNotRegistered() + { + var services = new ServiceCollection(); + + var ex = Assert.Throws(() => + { + services.AddServiceConnect(b => + { + b.ConfigureQueues(q => q.QueueName = "test"); + b.AddOnConsumedSuccessfullyFilter(); + }); + }); + + Assert.Contains(typeof(UnregisteredFilter).FullName!, ex.Message); + Assert.Contains("not registered", ex.Message); + } +} diff --git a/src/ServiceConnect.UnitTests/DI/RequestReplyManagerRegistrationTests.cs b/src/ServiceConnect.UnitTests/DI/RequestReplyManagerRegistrationTests.cs new file mode 100644 index 000000000..99dc46faa --- /dev/null +++ b/src/ServiceConnect.UnitTests/DI/RequestReplyManagerRegistrationTests.cs @@ -0,0 +1,165 @@ +using Microsoft.Extensions.DependencyInjection; +using Moq; +using ServiceConnect; +using ServiceConnect.DependencyInjection; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.DI; + +public class RequestReplyManagerRegistrationTests +{ + private static IServiceCollection CreateMinimalServices() + { + var services = new ServiceCollection(); + // SendMessagePipeline requires IProducer + services.AddSingleton(new Mock().Object); + services.AddLogging(); + return services; + } + + private static void ConfigureMinimal(ServiceConnectBuilder b) => + b.ConfigureQueues(q => q.QueueName = "test") + .ConfigureBus(c => c.ScanForMessageHandlers = false); + + // Case A: user pre-registers a custom IRequestReplyManager that ALSO implements + // IReplyStatusRequestReplyManager. Both interfaces should resolve to the user's instance. + [Fact] + public async Task AddServiceConnect_UsesCustomImpl_WhenUserPreregistersCompleteImpl() + { + var services = CreateMinimalServices(); + services.AddSingleton(); + services.AddSingleton(sp => + (CustomManager)sp.GetRequiredService()); + services.AddServiceConnect(ConfigureMinimal); + + await using var provider = services.BuildServiceProvider(); + var rrm = provider.GetRequiredService(); + var rsrrm = provider.GetRequiredService(); + + Assert.IsType(rrm); + Assert.IsType(rsrrm); + Assert.Same(rrm, rsrrm); + } + + // Case B: user pre-registers ONLY IRequestReplyManager without the secondary interface. + // Without a guard the container would resolve outgoing requests to the user's impl while + // IReplyStatusRequestReplyManager fell back to the stock RequestReplyManager — split-brain, + // replies silently dropped. AddServiceConnect must throw InvalidOperationException at + // configuration time (not at resolve time) with a clear message directing the user to + // implement both interfaces or remove the custom registration. + [Fact] + public void AddServiceConnect_FailsFast_WhenUserPartiallyReplacesImpl() + { + var services = CreateMinimalServices(); + services.AddSingleton(); // does NOT implement IReplyStatusRequestReplyManager + + var exception = Assert.Throws(() => services.AddServiceConnect(ConfigureMinimal)); + + Assert.Contains(nameof(IRequestReplyManager), exception.Message); + Assert.Contains(nameof(IReplyStatusRequestReplyManager), exception.Message); + } + + // Case C (reverse split-brain): user pre-registers ONLY IReplyStatusRequestReplyManager + // without also pre-registering IRequestReplyManager. The stock RequestReplyManager would + // be used for outgoing requests while the custom impl handles incoming reply correlation — + // the two instances are unrelated and replies are silently dropped. AddServiceConnect must + // throw InvalidOperationException at configuration time with a symmetric diagnostic message. + [Fact] + public void AddServiceConnect_FailsFast_WhenUserRegistersReplyStatusWithoutRequestReplyManager() + { + var services = CreateMinimalServices(); + services.AddSingleton(new ReplyStatusOnlyManager()); + + var exception = Assert.Throws(() => services.AddServiceConnect(ConfigureMinimal)); + + Assert.Contains(nameof(IReplyStatusRequestReplyManager), exception.Message); + Assert.Contains(nameof(IRequestReplyManager), exception.Message); + } + + private sealed class CustomManager : IRequestReplyManager, IReplyStatusRequestReplyManager + { + public Task SendRequestAsync( + TRequest message, + IDictionary headers, + RequestOptions options, + CancellationToken cancellationToken = default) + where TRequest : Message + where TReply : Message => + throw new NotImplementedException(); + + public Task> SendRequestMultiAsync( + TRequest message, + IDictionary headers, + RequestOptions options, + CancellationToken cancellationToken = default) + where TRequest : Message + where TReply : Message => + throw new NotImplementedException(); + + public Task PublishRequestAsync( + TRequest message, + IDictionary headers, + RequestOptions options, + Action onReply, + CancellationToken cancellationToken = default) + where TRequest : Message + where TReply : Message => + throw new NotImplementedException(); + + public void ProcessReply(string messageId, ReadOnlyMemory messageBytes, Type type) => + throw new NotImplementedException(); + + public bool TryProcessReply(string messageId, ReadOnlyMemory messageBytes, Type type) => + throw new NotImplementedException(); + + public bool IsTrackedRequest(string messageId) => + throw new NotImplementedException(); + } + + private sealed class PartialManager : IRequestReplyManager + { + public Task SendRequestAsync( + TRequest message, + IDictionary headers, + RequestOptions options, + CancellationToken cancellationToken = default) + where TRequest : Message + where TReply : Message => + throw new NotImplementedException(); + + public Task> SendRequestMultiAsync( + TRequest message, + IDictionary headers, + RequestOptions options, + CancellationToken cancellationToken = default) + where TRequest : Message + where TReply : Message => + throw new NotImplementedException(); + + public Task PublishRequestAsync( + TRequest message, + IDictionary headers, + RequestOptions options, + Action onReply, + CancellationToken cancellationToken = default) + where TRequest : Message + where TReply : Message => + throw new NotImplementedException(); + + public void ProcessReply(string messageId, ReadOnlyMemory messageBytes, Type type) => + throw new NotImplementedException(); + } + + // Only implements the internal half — used to test the reverse split-brain guard. + private sealed class ReplyStatusOnlyManager : IReplyStatusRequestReplyManager + { + public bool TryProcessReply(string messageId, ReadOnlyMemory messageBytes, Type type) => + throw new NotImplementedException(); + + public bool IsTrackedRequest(string messageId) => + throw new NotImplementedException(); + } +} diff --git a/src/ServiceConnect.UnitTests/Diagnostics/ExceptionTypeMapperTests.cs b/src/ServiceConnect.UnitTests/Diagnostics/ExceptionTypeMapperTests.cs new file mode 100644 index 000000000..b74628c24 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Diagnostics/ExceptionTypeMapperTests.cs @@ -0,0 +1,82 @@ +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using RabbitMQ.Client.Exceptions; +using ServiceConnect.Diagnostics; +using Xunit; + +namespace ServiceConnect.UnitTests.Diagnostics; + +public class ExceptionTypeMapperTests +{ + [Fact] + public void Map_OperationCanceledException_ReturnsCancelled() + { + Assert.Equal("cancelled", ExceptionTypeMapper.Map(new OperationCanceledException())); + } + + [Fact] + public void Map_TaskCanceledException_ReturnsCancelled() + { + // TaskCanceledException extends OperationCanceledException — subclass must also match. + Assert.Equal("cancelled", ExceptionTypeMapper.Map(new TaskCanceledException())); + } + + [Fact] + public void Map_TimeoutException_ReturnsTimeout() + { + Assert.Equal("timeout", ExceptionTypeMapper.Map(new TimeoutException())); + } + + [Fact] + public void Map_UnrelatedExceptionFallsBackToTypeName() + { + Assert.Equal("InvalidOperationException", ExceptionTypeMapper.Map(new InvalidOperationException())); + } + + [Fact] + public void Map_AlreadyClosedException_ReturnsChannelClosed() + { + var ex = new AlreadyClosedException( + new ShutdownEventArgs(ShutdownInitiator.Peer, 0, "test")); + Assert.Equal("channel_closed", ExceptionTypeMapper.Map(ex)); + } + + [Fact] + public void Map_AlreadyClosedException_DoesNotReturnBrokerInterrupted() + { + // Confirms subclass ordering: AlreadyClosedException extends OperationInterruptedException + // and must resolve to "channel_closed", not "broker_interrupted". + var ex = new AlreadyClosedException( + new ShutdownEventArgs(ShutdownInitiator.Peer, 0, "test")); + Assert.NotEqual("broker_interrupted", ExceptionTypeMapper.Map(ex)); + } + + [Fact] + public void Map_OperationInterruptedException_ReturnsBrokerInterrupted() + { + var ex = new OperationInterruptedException( + new ShutdownEventArgs(ShutdownInitiator.Peer, 0, "test")); + Assert.Equal("broker_interrupted", ExceptionTypeMapper.Map(ex)); + } + + [Fact] + public void Map_BrokerUnreachableException_ReturnsBrokerUnreachable() + { + var ex = new BrokerUnreachableException( + new InvalidOperationException("connect failed")); + Assert.Equal("broker_unreachable", ExceptionTypeMapper.Map(ex)); + } + + [Fact] + public void Map_PublishException_ReturnsPublishNacked() + { + var ex = new PublishException(1, false); + Assert.Equal("publish_nacked", ExceptionTypeMapper.Map(ex)); + } + + [Fact] + public void Map_NullThrowsArgumentNullException() + { + Assert.Throws(() => ExceptionTypeMapper.Map(null!)); + } +} diff --git a/src/ServiceConnect.UnitTests/Diagnostics/MetricCollector.cs b/src/ServiceConnect.UnitTests/Diagnostics/MetricCollector.cs new file mode 100644 index 000000000..503da739c --- /dev/null +++ b/src/ServiceConnect.UnitTests/Diagnostics/MetricCollector.cs @@ -0,0 +1,115 @@ +using System.Diagnostics.Metrics; +using ServiceConnect.Diagnostics; + +namespace ServiceConnect.UnitTests.Diagnostics; + +/// +/// MeterListener-based helper for unit tests. Subscribes to ServiceConnect.Bus instruments +/// during the test's lifetime and exposes captured records. +/// +/// +/// Tests that run in parallel and emit on the same instruments will pollute each other's +/// captures. Use the constructor overload that takes a tag-key/tag-value pair to filter the +/// listener at the source — a typical choice is messaging.destination.name with a +/// per-test unique queue/exchange name baked into the SUT configuration. +/// +internal sealed class MetricCollector : IDisposable +{ + public sealed record Record(string InstrumentName, T Value, IReadOnlyDictionary Tags) + { + public string? GetTag(string key) => Tags.TryGetValue(key, out var v) ? v?.ToString() : null; + } + + private readonly MeterListener _listener; + private readonly List> _longRecords = []; + private readonly List> _doubleRecords = []; + private readonly string? _filterTagKey; + private readonly string? _filterTagValue; + + /// Subscribes without filtering — captures every record on ServiceConnect.Bus. + public MetricCollector() : this(filterTagKey: null, filterTagValue: null) { } + + /// Subscribes and only records measurements whose tags include the given key/value pair. + public MetricCollector(string? filterTagKey, string? filterTagValue) + { + _filterTagKey = filterTagKey; + _filterTagValue = filterTagValue; + _listener = new MeterListener + { + InstrumentPublished = (instrument, l) => + { + if (instrument.Meter.Name == ServiceConnectMeter.MeterName) + { + l.EnableMeasurementEvents(instrument); + } + } + }; + _listener.SetMeasurementEventCallback((instrument, value, tags, _) => + { + if (!Matches(tags)) + { + return; + } + lock (_longRecords) + { + _longRecords.Add(new(instrument.Name, value, ToDictionary(tags))); + } + }); + _listener.SetMeasurementEventCallback((instrument, value, tags, _) => + { + if (!Matches(tags)) + { + return; + } + lock (_doubleRecords) + { + _doubleRecords.Add(new(instrument.Name, value, ToDictionary(tags))); + } + }); + _listener.Start(); + } + + public IReadOnlyList> GetLongRecords(string instrumentName) + { + lock (_longRecords) + { + return [.. _longRecords.Where(r => r.InstrumentName == instrumentName)]; + } + } + + public IReadOnlyList> GetDoubleRecords(string instrumentName) + { + lock (_doubleRecords) + { + return [.. _doubleRecords.Where(r => r.InstrumentName == instrumentName)]; + } + } + + private bool Matches(ReadOnlySpan> tags) + { + if (_filterTagKey is null) + { + return true; + } + foreach (var kv in tags) + { + if (kv.Key == _filterTagKey && (kv.Value as string) == _filterTagValue) + { + return true; + } + } + return false; + } + + private static Dictionary ToDictionary(ReadOnlySpan> tags) + { + var dict = new Dictionary(tags.Length, StringComparer.Ordinal); + foreach (var kv in tags) + { + dict[kv.Key] = kv.Value; + } + return dict; + } + + public void Dispose() => _listener.Dispose(); +} diff --git a/src/ServiceConnect.UnitTests/Diagnostics/ServiceConnectMeterTests.cs b/src/ServiceConnect.UnitTests/Diagnostics/ServiceConnectMeterTests.cs new file mode 100644 index 000000000..869d0830e --- /dev/null +++ b/src/ServiceConnect.UnitTests/Diagnostics/ServiceConnectMeterTests.cs @@ -0,0 +1,138 @@ +using System.Diagnostics; +using System.Diagnostics.Metrics; +using ServiceConnect.Diagnostics; +using Xunit; + +namespace ServiceConnect.UnitTests.Diagnostics; + +public class ServiceConnectMeterTests +{ + [Fact] + public void MeterName_Is_ServiceConnectBus() + { + Assert.Equal("ServiceConnect.Bus", ServiceConnectMeter.MeterName); + } + + // Each test stamps a unique "test.id" tag and filters captured records by it. This isolates + // measurements from other tests running in parallel that also emit on the same instruments + // (e.g. ProducerPublishMetricsTests, ConsumerProcessMetricsTests). + private const string TestIdTagKey = "test.id"; + + private static bool MatchesTestId(ReadOnlySpan> tags, string testId) + { + foreach (var kv in tags) + { + if (kv.Key == TestIdTagKey && (kv.Value as string) == testId) + { + return true; + } + } + return false; + } + + [Fact] + public void RecordPublishDuration_EmitsOnPublishDurationInstrument() + { + var testId = Guid.NewGuid().ToString(); + var captured = new List<(string Name, double Value)>(); + using var listener = new MeterListener + { + InstrumentPublished = (instrument, l) => + { + if (instrument.Meter.Name == ServiceConnectMeter.MeterName) + { + l.EnableMeasurementEvents(instrument); + } + } + }; + listener.SetMeasurementEventCallback((instrument, value, tags, _) => + { + if (MatchesTestId(tags, testId)) + { + captured.Add((instrument.Name, value)); + } + }); + listener.Start(); + + ServiceConnectMeter.RecordPublishDuration(0.123, new TagList { { TestIdTagKey, testId } }); + + var (name, value) = Assert.Single(captured); + Assert.Equal(MetricNames.PublishDuration, name); + Assert.Equal(0.123, value); + } + + [Fact] + public void AddPublishedMessage_IncrementsPublishedMessagesCounter() + { + var testId = Guid.NewGuid().ToString(); + var captured = new List<(string Name, long Value)>(); + using var listener = new MeterListener + { + InstrumentPublished = (instrument, l) => + { + if (instrument.Meter.Name == ServiceConnectMeter.MeterName) + { + l.EnableMeasurementEvents(instrument); + } + } + }; + listener.SetMeasurementEventCallback((instrument, value, tags, _) => + { + if (MatchesTestId(tags, testId)) + { + captured.Add((instrument.Name, value)); + } + }); + listener.Start(); + + ServiceConnectMeter.AddPublishedMessage(new TagList { { TestIdTagKey, testId } }); + + var (name, value) = Assert.Single(captured); + Assert.Equal(MetricNames.PublishedMessages, name); + Assert.Equal(1, value); + } + + [Fact] + public void AddInFlight_AdjustsUpDownCounterByDelta() + { + var testId = Guid.NewGuid().ToString(); + long total = 0; + using var listener = new MeterListener + { + InstrumentPublished = (instrument, l) => + { + if (instrument.Meter.Name == ServiceConnectMeter.MeterName + && instrument.Name == MetricNames.InFlightMessages) + { + l.EnableMeasurementEvents(instrument); + } + } + }; + listener.SetMeasurementEventCallback((_, value, tags, _) => + { + if (MatchesTestId(tags, testId)) + { + total += value; + } + }); + listener.Start(); + + ServiceConnectMeter.AddInFlight(1, new TagList { { TestIdTagKey, testId } }); + ServiceConnectMeter.AddInFlight(1, new TagList { { TestIdTagKey, testId } }); + ServiceConnectMeter.AddInFlight(-1, new TagList { { TestIdTagKey, testId } }); + + Assert.Equal(1, total); + } + + [Theory] + [InlineData(typeof(OperationCanceledException), "cancelled")] + [InlineData(typeof(TimeoutException), "timeout")] + [InlineData(typeof(InvalidOperationException), "InvalidOperationException")] + [InlineData(typeof(ArgumentException), "ArgumentException")] + public void ExceptionTypeMapper_MapsKnownTypesAndFallsBackToShortName(Type exceptionType, string expected) + { + var exception = (Exception)Activator.CreateInstance(exceptionType, "test")!; + + Assert.Equal(expected, ExceptionTypeMapper.Map(exception)); + } +} diff --git a/src/ServiceConnect.UnitTests/Events/ConsumeEventArgsReadOnlyHeadersTests.cs b/src/ServiceConnect.UnitTests/Events/ConsumeEventArgsReadOnlyHeadersTests.cs new file mode 100644 index 000000000..729d9e220 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Events/ConsumeEventArgsReadOnlyHeadersTests.cs @@ -0,0 +1,25 @@ +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.Events; + +public class ConsumeEventArgsReadOnlyHeadersTests +{ + [Fact] + public void Headers_PropertyType_IsReadOnlyDictionary() + { + var prop = typeof(ConsumeEventArgs).GetProperty(nameof(ConsumeEventArgs.Headers)); + Assert.NotNull(prop); + Assert.Equal(typeof(IReadOnlyDictionary), prop!.PropertyType); + } + + [Fact] + public void Headers_ConstructsAndReadsBack() + { + var args = new ConsumeEventArgs + { + Headers = new Dictionary { ["k"] = "v" } + }; + Assert.Equal("v", args.Headers["k"]); + } +} diff --git a/src/ServiceConnect.UnitTests/Events/ConsumeEventArgsTests.cs b/src/ServiceConnect.UnitTests/Events/ConsumeEventArgsTests.cs new file mode 100644 index 000000000..fc9f6e0b6 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Events/ConsumeEventArgsTests.cs @@ -0,0 +1,31 @@ +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.Events; + +public class ConsumeEventArgsHeadersTests +{ + [Fact] + public void Headers_RepeatedReadsReturnSameReference() + { + var args = new ConsumeEventArgs + { + Headers = new Dictionary { ["k"] = "v" }, + }; + + var read1 = args.Headers; + var read2 = args.Headers; + Assert.Same(read1, read2); + } + + [Fact] + public void Headers_NotInitialised_IsNotPermitted() + { + // Constructing without Headers must either default to a usable empty dictionary + // or throw — what it must NOT do is hand out a different reference per call. + var args = new ConsumeEventArgs { Message = [1] }; + var read1 = args.Headers; + var read2 = args.Headers; + Assert.Same(read1, read2); + } +} diff --git a/src/ServiceConnect.UnitTests/Exceptions/ExceptionShapeTests.cs b/src/ServiceConnect.UnitTests/Exceptions/ExceptionShapeTests.cs new file mode 100644 index 000000000..6d4435da2 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Exceptions/ExceptionShapeTests.cs @@ -0,0 +1,73 @@ +using ServiceConnect.Interfaces.Exceptions; +using Xunit; + +namespace ServiceConnect.UnitTests.Exceptions; + +public class ExceptionShapeTests +{ + // Each sealed library exception must expose the full CA1032 constructor shape + // (parameterless, message, message+innerException) so callers can wrap inner + // causes with `new X(message, inner)` uniformly across the exception surface. + + [Fact] + public void ConcurrencyException_SupportsStandardConstructors() + { + var inner = new InvalidOperationException("boom"); + + var empty = new ConcurrencyException(); + var message = new ConcurrencyException("m"); + var wrapped = new ConcurrencyException("m", inner); + + Assert.NotNull(empty); + Assert.Equal("m", message.Message); + Assert.Same(inner, wrapped.InnerException); + } + + [Fact] + public void PersistenceException_SupportsStandardConstructors() + { + var inner = new InvalidOperationException("boom"); + + var empty = new PersistenceException(); + var message = new PersistenceException("m"); + var wrapped = new PersistenceException("m", inner); + + Assert.NotNull(empty); + Assert.Equal("m", message.Message); + Assert.Same(inner, wrapped.InnerException); + } + + [Fact] + public void TransportException_SupportsStandardConstructors() + { + var inner = new InvalidOperationException("boom"); + + var empty = new TransportException(); + var message = new TransportException("m"); + var wrapped = new TransportException("m", inner); + var withEndpoint = new TransportException("m", "queue://foo", inner); + + Assert.NotNull(empty); + Assert.Equal("m", message.Message); + Assert.Null(wrapped.Endpoint); + Assert.Same(inner, wrapped.InnerException); + Assert.Equal("queue://foo", withEndpoint.Endpoint); + } + + [Fact] + public void SerializationException_SupportsStandardConstructors() + { + var inner = new InvalidOperationException("boom"); + + var empty = new SerializationException(); + var message = new SerializationException("m"); + var wrapped = new SerializationException("m", inner); + var withType = new SerializationException("m", typeof(string), inner); + + Assert.NotNull(empty); + Assert.Equal("m", message.Message); + Assert.Null(wrapped.MessageType); + Assert.Same(inner, wrapped.InnerException); + Assert.Same(typeof(string), withType.MessageType); + } +} diff --git a/src/ServiceConnect.UnitTests/Exceptions/InterfaceCleanupTests.cs b/src/ServiceConnect.UnitTests/Exceptions/InterfaceCleanupTests.cs new file mode 100644 index 000000000..20edcbd56 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Exceptions/InterfaceCleanupTests.cs @@ -0,0 +1,66 @@ +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.Exceptions; + +public class InterfaceCleanupTests +{ + [Fact] + public void HandlerReference_DoesNotExposeRoutingKeys() + { + Assert.Null(typeof(HandlerReference).GetProperty("RoutingKeys")); + } + + [Fact] + public void IConsumeContext_CancellationToken_IsReadOnly() + { + var property = typeof(IConsumeContext).GetProperty(nameof(IConsumeContext.CancellationToken))!; + + Assert.NotNull(property); + Assert.Null(property.SetMethod); + } + + [Fact] + public void IBusConfiguration_DoesNotExposeNestedConfigurations() + { + Assert.Null(typeof(IBusConfiguration).GetProperty("Transport")); + Assert.Null(typeof(IBusConfiguration).GetProperty("Queues")); + Assert.Null(typeof(IBusConfiguration).GetProperty("Persistence")); + Assert.Null(typeof(IBusConfiguration).GetProperty("Pipeline")); + } + + [Fact] + public void IRequestReplyManager_MethodsDoNotExposeSendDelegate() + { + var sendRequest = typeof(IRequestReplyManager).GetMethod(nameof(IRequestReplyManager.SendRequestAsync))!; + var sendRequestMulti = typeof(IRequestReplyManager).GetMethod(nameof(IRequestReplyManager.SendRequestMultiAsync))!; + var publishRequest = typeof(IRequestReplyManager).GetMethod(nameof(IRequestReplyManager.PublishRequestAsync))!; + + Assert.DoesNotContain(sendRequest.GetParameters(), parameter => parameter.ParameterType.Name.Contains("Func")); + Assert.DoesNotContain(sendRequestMulti.GetParameters(), parameter => parameter.ParameterType.Name.Contains("Func")); + Assert.DoesNotContain(publishRequest.GetParameters(), parameter => parameter.ParameterType.Name.Contains("Func")); + } + + [Fact] + public void ProcessManagerTimeoutService_Constructor_UsesLazyBusInsteadOfServiceProvider() + { + var constructor = typeof(ProcessManagerTimeoutService).GetConstructors().Single(); + var parameterTypes = constructor.GetParameters().Select(parameter => parameter.ParameterType).ToArray(); + + Assert.DoesNotContain(typeof(IServiceProvider), parameterTypes); + Assert.Contains(typeof(Lazy), parameterTypes); + } + + [Fact] + public void Message_ImplementsIHasCorrelationId_AndExposesCorrelationIdViaInterface() + { + var corrId = Guid.NewGuid(); + var message = new Message(corrId); + + IHasCorrelationId asInterface = message; + + Assert.Equal(corrId, asInterface.CorrelationId); + } +} diff --git a/src/ServiceConnect.UnitTests/Exceptions/RequestTimeoutExceptionCultureTests.cs b/src/ServiceConnect.UnitTests/Exceptions/RequestTimeoutExceptionCultureTests.cs new file mode 100644 index 000000000..7a386585f --- /dev/null +++ b/src/ServiceConnect.UnitTests/Exceptions/RequestTimeoutExceptionCultureTests.cs @@ -0,0 +1,27 @@ +using System.Globalization; +using ServiceConnect.Interfaces.Exceptions; +using Xunit; + +namespace ServiceConnect.UnitTests.Exceptions; + +public class RequestTimeoutExceptionCultureTests +{ + [Fact] + public void Message_UsesInvariantCultureForElapsedFormatting() + { + // Save and restore the thread culture to avoid leaking state to sibling tests. + var prev = CultureInfo.CurrentCulture; + CultureInfo.CurrentCulture = CultureInfo.GetCultureInfo("de-DE"); + try + { + var ex = new RequestTimeoutException(Guid.NewGuid(), TimeSpan.FromMilliseconds(123.456)); + // de-DE uses ',' as decimal separator. Invariant uses '.'. + // The message must NOT contain a comma in the milliseconds value. + Assert.DoesNotContain(",", ex.Message); + } + finally + { + CultureInfo.CurrentCulture = prev; + } + } +} diff --git a/src/ServiceConnect.UnitTests/Exceptions/RequestTimeoutExceptionTests.cs b/src/ServiceConnect.UnitTests/Exceptions/RequestTimeoutExceptionTests.cs new file mode 100644 index 000000000..0f15e66df --- /dev/null +++ b/src/ServiceConnect.UnitTests/Exceptions/RequestTimeoutExceptionTests.cs @@ -0,0 +1,55 @@ +using System; +using ServiceConnect.Interfaces.Exceptions; +using Xunit; + +namespace ServiceConnect.UnitTests.Exceptions; + +/// +/// Constructor coverage for : the original 2-arg +/// shape stays binary-compatible (PartialReplies defaults to empty), the 3-arg shape +/// preserves the supplied list, and a null partials argument coalesces to empty rather +/// than throwing — the exception is a pure data carrier on a failure path. +/// +public sealed class RequestTimeoutExceptionTests +{ + [Fact] + public void Ctor_NoPartials_PartialRepliesIsEmpty() + { + var ex = new RequestTimeoutException(Guid.NewGuid(), TimeSpan.FromSeconds(1)); + + Assert.NotNull(ex.PartialReplies); + Assert.Empty(ex.PartialReplies); + } + + [Fact] + public void Ctor_WithPartials_PartialRepliesPreserved() + { + object reply1 = new(); + object reply2 = new(); + var ex = new RequestTimeoutException(Guid.NewGuid(), TimeSpan.FromSeconds(1), [reply1, reply2]); + + Assert.Equal(2, ex.PartialReplies.Count); + Assert.Same(reply1, ex.PartialReplies[0]); + Assert.Same(reply2, ex.PartialReplies[1]); + } + + [Fact] + public void Ctor_NullPartials_PartialRepliesIsEmpty() + { + var ex = new RequestTimeoutException(Guid.NewGuid(), TimeSpan.FromSeconds(1), partialReplies: null!); + + Assert.NotNull(ex.PartialReplies); + Assert.Empty(ex.PartialReplies); + } + + [Fact] + public void Ctor_PreservesCorrelationIdAndElapsed() + { + var id = Guid.NewGuid(); + var elapsed = TimeSpan.FromMilliseconds(123); + var ex = new RequestTimeoutException(id, elapsed); + + Assert.Equal(id, ex.CorrelationId); + Assert.Equal(elapsed, ex.Elapsed); + } +} diff --git a/src/ServiceConnect.UnitTests/ExpiredTimeoutsPollerTest.cs b/src/ServiceConnect.UnitTests/ExpiredTimeoutsPollerTest.cs deleted file mode 100644 index 732cbffe1..000000000 --- a/src/ServiceConnect.UnitTests/ExpiredTimeoutsPollerTest.cs +++ /dev/null @@ -1,118 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Threading; -using Moq; -using ServiceConnect.Core; -using ServiceConnect.Interfaces; -using Xunit; - -namespace ServiceConnect.UnitTests -{ - public class ExpiredTimeoutsPollerTest - { - readonly Mock _mockProcessManagerFinder = new Mock(); - readonly Mock _mockConfiguration = new Mock(); - readonly Mock _mockBus = new Mock(); - private readonly Guid _tdId = Guid.NewGuid(); - private readonly Guid _pmId = Guid.NewGuid(); - - public ExpiredTimeoutsPollerTest() - { - _mockConfiguration.Setup(c => c.GetProcessManagerFinder()).Returns(_mockProcessManagerFinder.Object); - _mockBus.SetupGet(c => c.Configuration).Returns(_mockConfiguration.Object); - } - - [Fact] - public void TestTimeoutMessageIsDispatched() - { - // Arrange - SetupProcessManagerFinderMock(DateTime.UtcNow.AddSeconds(30)); - var expiredTimeoutsPoller = new ExpiredTimeoutsPoller(_mockBus.Object); - - // Act - expiredTimeoutsPoller.InnerPoll(new CancellationToken(false)); - - // Assert - _mockBus.Verify(i => i.Send("TestDest", It.Is(p => p.CorrelationId == _pmId), null), Times.Once); - } - - [Fact] - public void TestDispatchedTimeoutMessageIsRemoved() - { - // Arrange - SetupProcessManagerFinderMock(DateTime.UtcNow.AddSeconds(30)); - var expiredTimeoutsPoller = new ExpiredTimeoutsPoller(_mockBus.Object); - - // Act - expiredTimeoutsPoller.InnerPoll(new CancellationToken(false)); - - // Assert - _mockProcessManagerFinder.Verify(i => i.RemoveDispatchedTimeout(_tdId), Times.Once); - } - - [Fact] - public void TestNextQueryTimeIsResetToNextTimeoutDue() - { - // Arrange - var nextTimeoutQueryTime = DateTime.UtcNow.AddSeconds(30); - SetupProcessManagerFinderMock(nextTimeoutQueryTime); - var expiredTimeoutsPoller = new ExpiredTimeoutsPoller(_mockBus.Object); - - // Act - expiredTimeoutsPoller.InnerPoll(new CancellationToken(false)); - - // Assert - Assert.Equal(nextTimeoutQueryTime, expiredTimeoutsPoller.NextQueryUtc); - } - - [Fact] - public void TestNextQueryTimeIsResetToMaxAlowedValue() - { - // Arrange - var nextTimeoutQueryTime = DateTime.UtcNow.AddDays(1); - SetupProcessManagerFinderMock(nextTimeoutQueryTime); - var expiredTimeoutsPoller = new ExpiredTimeoutsPoller(_mockBus.Object); - - // Act - expiredTimeoutsPoller.InnerPoll(new CancellationToken(false)); - - // Assert - Assert.True(expiredTimeoutsPoller.NextQueryUtc < nextTimeoutQueryTime); - } - - [Fact] - public void TestNextQueryTimeIsResetWhenNewTimeoutIsInserted() - { - // Arrange - var expiredTimeoutsPoller = new ExpiredTimeoutsPoller(_mockBus.Object);// todo: pass time provider to make testing easier - var nextTimeoutQueryTime = DateTime.UtcNow.AddSeconds(-10); - - // Act - _mockProcessManagerFinder.Raise(e => e.TimeoutInserted += null, nextTimeoutQueryTime); - - // Assert - Assert.Equal(expiredTimeoutsPoller.NextQueryUtc, nextTimeoutQueryTime); - } - - private void SetupProcessManagerFinderMock(DateTime nextTimeoutQueryTime) - { - var timeoutsBatch = new TimeoutsBatch - { - DueTimeouts = - new List - { - new TimeoutData - { - Time = DateTime.UtcNow.AddSeconds(-30), - ProcessManagerId = _pmId, - Id = _tdId, - Destination = "TestDest" - } - }, - NextQueryTime = nextTimeoutQueryTime - }; - - _mockProcessManagerFinder.Setup(i => i.GetTimeoutsBatch()).Returns(timeoutsBatch); - } - } -} diff --git a/src/ServiceConnect.UnitTests/Fakes/FakePersistanceData.cs b/src/ServiceConnect.UnitTests/Fakes/FakePersistanceData.cs deleted file mode 100644 index 03fa6279c..000000000 --- a/src/ServiceConnect.UnitTests/Fakes/FakePersistanceData.cs +++ /dev/null @@ -1,26 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using ServiceConnect.Interfaces; -using ServiceConnect.UnitTests.Fakes.ProcessManagers; - -namespace ServiceConnect.UnitTests.Fakes -{ - public class FakePersistanceData : IPersistanceData - { - public FakeProcessManagerData Data { get; set; } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.UnitTests/Fakes/Handlers/FakeAsyncHandler.cs b/src/ServiceConnect.UnitTests/Fakes/Handlers/FakeAsyncHandler.cs deleted file mode 100644 index a1f543968..000000000 --- a/src/ServiceConnect.UnitTests/Fakes/Handlers/FakeAsyncHandler.cs +++ /dev/null @@ -1,46 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Threading.Tasks; -using ServiceConnect.Core; -using ServiceConnect.Interfaces; -using ServiceConnect.UnitTests.Fakes.Messages; - -namespace ServiceConnect.UnitTests.Fakes.Handlers -{ - public class FakeAsyncHandler : IAsyncMessageHandler - { - public IConsumeContext Context { get; set; } - - public bool Executed { get; set; } - - public async Task Execute(FakeMessage1 command) - { - await ExecuteTask(); - } - - private async Task ExecuteTask() - { - await Task.Run(() => - { - Executed = true; - }); - } - - public FakeMessage1 Command { get; set; } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.UnitTests/Fakes/Handlers/FakeHandler1.cs b/src/ServiceConnect.UnitTests/Fakes/Handlers/FakeHandler1.cs deleted file mode 100644 index 520f29e3d..000000000 --- a/src/ServiceConnect.UnitTests/Fakes/Handlers/FakeHandler1.cs +++ /dev/null @@ -1,73 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using ServiceConnect.Core; -using ServiceConnect.Interfaces; -using ServiceConnect.UnitTests.Fakes.Messages; - -namespace ServiceConnect.UnitTests.Fakes.Handlers -{ - public class FakeHandler1 : IMessageHandler - { - public IConsumeContext Context { get; set; } - - public void Execute(FakeMessage1 command) - { - Command = command; - } - - public FakeMessage1 Command { get; set; } - } - - public class FakeBaseMessageHandler1 : IMessageHandler - { - public IConsumeContext Context { get; set; } - - public void Execute(FakeBaseMessage1 command) - { - Command = command; - } - - public FakeBaseMessage1 Command { get; set; } - } - - [RoutingKey("Test")] - public class FakeHandlerWithAttr1 : IMessageHandler - { - public IConsumeContext Context { get; set; } - - public void Execute(FakeMessage1 command) - { - Command = command; - } - - public FakeMessage1 Command { get; set; } - } - - [RoutingKey("Test1")] - [RoutingKey("Test2")] - public class FakeHandlerWithAttr2 : IMessageHandler - { - public IConsumeContext Context { get; set; } - - public void Execute(FakeMessage1 command) - { - Command = command; - } - - public FakeMessage1 Command { get; set; } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.UnitTests/Fakes/Handlers/FakeHandler2.cs b/src/ServiceConnect.UnitTests/Fakes/Handlers/FakeHandler2.cs deleted file mode 100644 index 468ea00ef..000000000 --- a/src/ServiceConnect.UnitTests/Fakes/Handlers/FakeHandler2.cs +++ /dev/null @@ -1,27 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using ServiceConnect.Interfaces; -using ServiceConnect.UnitTests.Fakes.Messages; - -namespace ServiceConnect.UnitTests.Fakes.Handlers -{ - public class FakeHandler2 : IMessageHandler - { - public IConsumeContext Context { get; set; } - public void Execute(FakeMessage2 command) { } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.UnitTests/Fakes/MessageSerializerMockExtensions.cs b/src/ServiceConnect.UnitTests/Fakes/MessageSerializerMockExtensions.cs new file mode 100644 index 000000000..5b040cb88 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Fakes/MessageSerializerMockExtensions.cs @@ -0,0 +1,60 @@ +using System; +using System.Buffers; +using Moq; +using Moq.Language.Flow; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.UnitTests.Fakes; + +/// +/// Test helpers that re-create a byte[]-returning Serialize<T>(T) shape on top of the +/// IBufferWriter-based IMessageSerializer interface. IMessageSerializer exposes three +/// methods; many unit tests only care that Serialize was invoked with a given message and +/// that a known body propagates onward. These helpers preserve those semantics without +/// re-writing each test individually. +/// +internal static class MessageSerializerMockExtensions +{ + /// + /// Sets up the Serialize<T>(T, IBufferWriter<byte>) overload so that calling + /// with a matching + /// message writes the provided into the supplied buffer writer. + /// + public static void SetupSerialize(this Mock mock, T message, byte[] bytes) + where T : Message + { + mock.Setup(x => x.Serialize(message, It.IsAny>())) + .Callback>((_, bw) => bw.Write(bytes)); + } + + /// + /// As , but matches + /// any message of type . + /// + public static void SetupSerializeAny(this Mock mock, byte[] bytes) + where T : Message + { + mock.Setup(x => x.Serialize(It.IsAny(), It.IsAny>())) + .Callback>((_, bw) => bw.Write(bytes)); + } + + /// + /// Verifies that Serialize<T> was called for the given + /// the expected number of times. + /// + public static void VerifySerialize(this Mock mock, T message, Times times) + where T : Message + { + mock.Verify(x => x.Serialize(message, It.IsAny>()), times); + } + + /// + /// As above, accepting the Moq factory-method form (e.g. Times.Once without parens) + /// for symmetry with the rest of the test suite. + /// + public static void VerifySerialize(this Mock mock, T message, Func times) + where T : Message + { + mock.Verify(x => x.Serialize(message, It.IsAny>()), times); + } +} diff --git a/src/ServiceConnect.UnitTests/Fakes/Messages/FakeMessage1.cs b/src/ServiceConnect.UnitTests/Fakes/Messages/FakeMessage1.cs index 9857e8506..379a5c14f 100644 --- a/src/ServiceConnect.UnitTests/Fakes/Messages/FakeMessage1.cs +++ b/src/ServiceConnect.UnitTests/Fakes/Messages/FakeMessage1.cs @@ -1,39 +1,9 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - using System; using ServiceConnect.Interfaces; -namespace ServiceConnect.UnitTests.Fakes.Messages -{ - public class FakeMessage1 : Message - { - public FakeMessage1(Guid correlationId) : base(correlationId) { } - public string Username { get; set; } - } - - public class FakeBaseMessage1 : Message - { - public FakeBaseMessage1(Guid correlationId) : base(correlationId) { } - public string Username { get; set; } - } +namespace ServiceConnect.UnitTests.Fakes.Messages; - public class FakeDerivedMessage1 : FakeBaseMessage1 - { - public FakeDerivedMessage1(Guid correlationId) : base(correlationId) { } - public string Status { get; set; } - } -} \ No newline at end of file +public class FakeMessage1(Guid correlationId) : Message(correlationId) +{ + public string Username { get; set; } = ""; +} diff --git a/src/ServiceConnect.UnitTests/Fakes/Messages/FakeMessage2.cs b/src/ServiceConnect.UnitTests/Fakes/Messages/FakeMessage2.cs deleted file mode 100644 index 5cbf4d1f9..000000000 --- a/src/ServiceConnect.UnitTests/Fakes/Messages/FakeMessage2.cs +++ /dev/null @@ -1,28 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.UnitTests.Fakes.Messages -{ - public class FakeMessage2 : Message - { - public FakeMessage2(Guid correlationId) : base(correlationId) { } - public string DisplayName { get; set; } - public string Email { get; set; } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.UnitTests/Fakes/ProcessManagers/FakeProcessManager1.cs b/src/ServiceConnect.UnitTests/Fakes/ProcessManagers/FakeProcessManager1.cs deleted file mode 100644 index 044eb5c0e..000000000 --- a/src/ServiceConnect.UnitTests/Fakes/ProcessManagers/FakeProcessManager1.cs +++ /dev/null @@ -1,60 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using ServiceConnect.Core; -using ServiceConnect.Interfaces; -using ServiceConnect.UnitTests.Fakes.Messages; -using System.Threading.Tasks; - -namespace ServiceConnect.UnitTests.Fakes.ProcessManagers -{ - public class FakeProcessManager1 : ProcessManager, - IStartProcessManager, - IMessageHandler - { - public void Execute(FakeMessage1 command) - { - Data.User = command.Username; - } - - public void Execute(FakeMessage2 command) - { - Data.Email = command.Email; - } - } - - public class FakeAsyncProcessManager1 : ProcessManager, - IStartAsyncProcessManager, - IAsyncMessageHandler - { - public async Task Execute(FakeMessage1 command) - { - await Task.Run(() => - { - Data.User = command.Username; - }); - } - - public async Task Execute(FakeMessage2 command) - { - await Task.Run(() => - { - Data.Email = command.Email; - }); - } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.UnitTests/Fakes/ProcessManagers/FakeProcessManagerData.cs b/src/ServiceConnect.UnitTests/Fakes/ProcessManagers/FakeProcessManagerData.cs deleted file mode 100644 index 2863185a3..000000000 --- a/src/ServiceConnect.UnitTests/Fakes/ProcessManagers/FakeProcessManagerData.cs +++ /dev/null @@ -1,28 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using ServiceConnect.Interfaces; - -namespace ServiceConnect.UnitTests.Fakes.ProcessManagers -{ - public class FakeProcessManagerData : IProcessManagerData - { - public Guid CorrelationId { get; set; } - public string User { get; set; } - public string Email { get; set; } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.UnitTests/FilterTests.cs b/src/ServiceConnect.UnitTests/FilterTests.cs deleted file mode 100644 index 61ef28475..000000000 --- a/src/ServiceConnect.UnitTests/FilterTests.cs +++ /dev/null @@ -1,371 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Text; -using System.Threading.Tasks; -using Moq; -using Newtonsoft.Json; -using ServiceConnect.Core; -using ServiceConnect.Interfaces; -using ServiceConnect.UnitTests.Fakes.Handlers; -using ServiceConnect.UnitTests.Fakes.Messages; -using Xunit; - -namespace ServiceConnect.UnitTests -{ - public class FilterTests - { - private Mock _mockConfiguration; - private Mock _mockContainer; - private Mock _mockConsumer; - private Mock _mockProducer; - private ConsumerEventHandler _fakeEventHandler; - private List _handlerReferences; - - private static bool _beforeFilter1Ran; - private static bool _beforeFilter2Ran; - private static bool _afterFilter1Ran; - private static bool _afterFilter2Ran; - private Mock _mockMessagePipeline; - - public class BeforeFilter1 : IFilter - { - public IBus Bus { get; set; } - - public bool Process(Envelope envelope) - { - var json = Encoding.UTF8.GetString(envelope.Body); - var message = JsonConvert.DeserializeObject(json); - message.Username = "mutated"; - envelope.Body = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(message)); - _beforeFilter1Ran = true; - return true; - } - } - - public class BeforeFilter2 : IFilter - { - public IBus Bus { get; set; } - - public bool Process(Envelope envelope) - { - if (Bus == null) - { - throw new Exception("Bus is null"); - } - - _beforeFilter2Ran = true; - return true; - } - } - - public class BeforeFilter3 : IFilter - { - public IBus Bus { get; set; } - - public bool Process(Envelope envelope) - { - if (Bus == null) - { - throw new Exception("Bus is null"); - } - - return false; - } - } - - public class AfterFilter1 : IFilter - { - public IBus Bus { get; set; } - - public bool Process(Envelope envelope) - { - if (Bus == null) - { - throw new Exception("Bus is null"); - } - - _afterFilter1Ran = true; - return true; - } - } - - public class AfterFilter2 : IFilter - { - public IBus Bus { get; set; } - - public bool Process(Envelope envelope) - { - if (Bus == null) - { - throw new Exception("Bus is null"); - } - - _afterFilter2Ran = true; - return true; - } - } - - public class AfterFilter3 : IFilter - { - public IBus Bus { get; set; } - - public bool Process(Envelope envelope) - { - if (Bus == null) - { - throw new Exception("Bus is null"); - } - - return false; - } - } - - public FilterTests() - { - _beforeFilter1Ran = false; - _beforeFilter2Ran = false; - _afterFilter1Ran = false; - _afterFilter2Ran = false; - - _mockConfiguration = new Mock(); - _mockContainer = new Mock(); - _mockConsumer = new Mock(); - _mockConfiguration.Setup(x => x.GetContainer()).Returns(_mockContainer.Object); - _mockConfiguration.SetupGet(x => x.TransportSettings).Returns(new TransportSettings { QueueName = "ServiceConnect.UnitTests" }); - _mockConfiguration.Setup(x => x.Clients).Returns(1); - _mockConfiguration.Setup(x => x.GetConsumer()).Returns(_mockConsumer.Object); - _mockMessagePipeline = new Mock(); - _mockConfiguration.Setup(x => x.GetProcessMessagePipeline(It.IsAny())).Returns(_mockMessagePipeline.Object); - - _handlerReferences = new List - { - new HandlerReference - { - HandlerType = typeof (FakeHandler1), - MessageType = typeof (FakeMessage1) - }, - new HandlerReference - { - HandlerType = typeof (FakeHandler2), - MessageType = typeof (FakeMessage2) - } - }; - } - - [Fact] - public void ShouldExecuteBeforeConsumingFilters() - { - // Arrange - var bus = new Bus(_mockConfiguration.Object); - - var headers = new Dictionary - { - { "MessageType", Encoding.ASCII.GetBytes("Send") } - }; - - _mockContainer.Setup(x => x.GetHandlerTypes()).Returns(_handlerReferences); - _mockConsumer.Setup(x => x.StartConsuming(It.IsAny(), It.IsAny>(), It.Is(y => AssignEventHandler(y)), It.IsAny())); - var mockMessageHandlerProcessor = new Mock(); - _mockContainer.Setup(x => x.GetInstance(It.Is>(y => y["container"] == _mockContainer.Object))).Returns(mockMessageHandlerProcessor.Object); - mockMessageHandlerProcessor.Setup(x => x.ProcessMessage(It.IsAny(), It.Is(y => y.Headers == headers))); - var mockProcessManagerProcessor = new Mock(); - _mockContainer.Setup(x => x.GetInstance(It.IsAny>())).Returns(mockProcessManagerProcessor.Object); - mockProcessManagerProcessor.Setup(x => x.ProcessMessage(It.IsAny(), It.Is(y => y.Headers == headers))); - _mockContainer.Setup(x => x.GetInstance(typeof(BeforeFilter1))).Returns(new BeforeFilter1()); - _mockContainer.Setup(x => x.GetInstance(typeof(BeforeFilter2))).Returns(new BeforeFilter2()); - - _mockConfiguration.Setup(x => x.BeforeConsumingFilters).Returns(new List - { - typeof (BeforeFilter1), - typeof (BeforeFilter2) - }); - - bus.StartConsuming(); - - var message = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim Watson" - })); - - // Act - _fakeEventHandler(message, typeof(FakeMessage1).AssemblyQualifiedName, headers); - - // Assert - Assert.True(_beforeFilter1Ran); - Assert.True(_beforeFilter2Ran); - } - - [Fact] - public void ShouldExecuteAfterConsumingFilters() - { - // Arrange - var bus = new Bus(_mockConfiguration.Object); - - var headers = new Dictionary - { - { "MessageType", Encoding.ASCII.GetBytes("Send") } - }; - - _mockContainer.Setup(x => x.GetHandlerTypes()).Returns(_handlerReferences); - _mockConsumer.Setup(x => x.StartConsuming(It.IsAny(), It.IsAny>(), It.Is(y => AssignEventHandler(y)), It.IsAny())); - var mockMessageHandlerProcessor = new Mock(); - _mockContainer.Setup(x => x.GetInstance(It.Is>(y => y["container"] == _mockContainer.Object))).Returns(mockMessageHandlerProcessor.Object); - _mockContainer.Setup(x => x.GetInstance(typeof(AfterFilter1))).Returns(new AfterFilter1()); - _mockContainer.Setup(x => x.GetInstance(typeof(AfterFilter2))).Returns(new AfterFilter2()); - - mockMessageHandlerProcessor.Setup(x => x.ProcessMessage(It.IsAny(), It.Is(y => y.Headers == headers))).Returns(Task.CompletedTask); - var mockProcessManagerProcessor = new Mock(); - _mockContainer.Setup(x => x.GetInstance(It.IsAny>())).Returns(mockProcessManagerProcessor.Object); - mockProcessManagerProcessor.Setup(x => x.ProcessMessage(It.IsAny(), It.Is(y => y.Headers == headers))).Returns(Task.CompletedTask); - - _mockConfiguration.Setup(x => x.AfterConsumingFilters).Returns(new List - { - typeof (AfterFilter1), - typeof (AfterFilter2) - }); - - bus.StartConsuming(); - - var message = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim Watson" - })); - - // Act - _fakeEventHandler(message, typeof(FakeMessage1).AssemblyQualifiedName, headers).GetAwaiter().GetResult(); - - // Assert - Assert.True(_afterFilter1Ran); - Assert.True(_afterFilter2Ran); - } - - [Fact] - public void ShouldNotProcessMessageIfBeforeFilterReturnsFalse() - { - // Arrange - var bus = new Bus(_mockConfiguration.Object); - - var headers = new Dictionary - { - { "MessageType", Encoding.ASCII.GetBytes("Send") } - }; - - _mockContainer.Setup(x => x.GetHandlerTypes()).Returns(_handlerReferences); - _mockConsumer.Setup(x => x.StartConsuming(It.IsAny(), It.IsAny>(), It.Is(y => AssignEventHandler(y)), It.IsAny())); - var mockMessageHandlerProcessor = new Mock(); - _mockContainer.Setup(x => x.GetInstance(It.Is>(y => y["container"] == _mockContainer.Object))).Returns(mockMessageHandlerProcessor.Object); - mockMessageHandlerProcessor.Setup(x => x.ProcessMessage(It.IsAny(), It.Is(y => y.Headers == headers))); - var mockProcessManagerProcessor = new Mock(); - _mockContainer.Setup(x => x.GetInstance(It.IsAny>())).Returns(mockProcessManagerProcessor.Object); - mockProcessManagerProcessor.Setup(x => x.ProcessMessage(It.IsAny(), It.Is(y => y.Headers == headers))); - - _mockConfiguration.Setup(x => x.BeforeConsumingFilters).Returns(new List - { - typeof (BeforeFilter1), - typeof (BeforeFilter2), - typeof (BeforeFilter3) - }); - - bus.StartConsuming(); - - var message = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim Watson" - })); - - // Act - _fakeEventHandler(message, typeof(FakeMessage1).AssemblyQualifiedName, headers).GetAwaiter().GetResult(); - - // Assert - mockMessageHandlerProcessor.Verify(x => x.ProcessMessage(It.IsAny(), It.IsAny()), Times.Never); - } - - [Fact] - public void ShouldProcessMessageIfBeforeFilterReturnsTrue() - { - // Arrange - var bus = new Bus(_mockConfiguration.Object); - - var headers = new Dictionary - { - { "MessageType", Encoding.ASCII.GetBytes("Send") } - }; - - _mockContainer.Setup(x => x.GetHandlerTypes()).Returns(_handlerReferences); - _mockConsumer.Setup(x => x.StartConsuming(It.IsAny(), It.IsAny>(), It.Is(y => AssignEventHandler(y)), It.IsAny())); - var mockMessageHandlerProcessor = new Mock(); - _mockContainer.Setup(x => x.GetInstance(It.Is>(y => y["container"] == _mockContainer.Object))).Returns(mockMessageHandlerProcessor.Object); - mockMessageHandlerProcessor.Setup(x => x.ProcessMessage(It.IsAny(), It.Is(y => y.Headers == headers))); - var mockProcessManagerProcessor = new Mock(); - _mockContainer.Setup(x => x.GetInstance(It.IsAny>())).Returns(mockProcessManagerProcessor.Object); - mockProcessManagerProcessor.Setup(x => x.ProcessMessage(It.IsAny(), It.Is(y => y.Headers == headers))); - _mockContainer.Setup(x => x.GetInstance(typeof(BeforeFilter1))).Returns(new BeforeFilter1()); - _mockContainer.Setup(x => x.GetInstance(typeof(BeforeFilter2))).Returns(new BeforeFilter2()); - - _mockConfiguration.Setup(x => x.BeforeConsumingFilters).Returns(new List - { - typeof (BeforeFilter1), - typeof (BeforeFilter2) - }); - - bus.StartConsuming(); - - var message = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim Watson" - })); - - // Act - _fakeEventHandler(message, typeof(FakeMessage1).AssemblyQualifiedName, headers); - - // Assert - _mockMessagePipeline.Verify(x => x.ExecutePipeline(It.IsAny(), It.IsAny(), It.IsAny()), Times.Once); - } - - [Fact] - public void ShouldMutateMessage() - { - // Arrange - var bus = new Bus(_mockConfiguration.Object); - - var headers = new Dictionary - { - { "MessageType", Encoding.ASCII.GetBytes("Send") } - }; - - _mockContainer.Setup(x => x.GetHandlerTypes()).Returns(_handlerReferences); - _mockConsumer.Setup(x => x.StartConsuming(It.IsAny(), It.IsAny>(), It.Is(y => AssignEventHandler(y)), It.IsAny())); - var mockMessageHandlerProcessor = new Mock(); - _mockContainer.Setup(x => x.GetInstance(It.Is>(y => y["container"] == _mockContainer.Object))).Returns(mockMessageHandlerProcessor.Object); - mockMessageHandlerProcessor.Setup(x => x.ProcessMessage(It.IsAny(), It.Is(y => y.Headers == headers))); - var mockProcessManagerProcessor = new Mock(); - _mockContainer.Setup(x => x.GetInstance(It.IsAny>())).Returns(mockProcessManagerProcessor.Object); - mockProcessManagerProcessor.Setup(x => x.ProcessMessage(It.IsAny(), It.Is(y => y.Headers == headers))); - _mockContainer.Setup(x => x.GetInstance(typeof(BeforeFilter1))).Returns(new BeforeFilter1()); - - _mockConfiguration.Setup(x => x.BeforeConsumingFilters).Returns(new List - { - typeof (BeforeFilter1) - }); - - bus.StartConsuming(); - - var message = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim Watson" - })); - - // Act - _fakeEventHandler(message, typeof(FakeMessage1).AssemblyQualifiedName, headers); - - // Assert - _mockMessagePipeline.Verify(x => x.ExecutePipeline(It.IsAny(), It.IsAny(), It.Is(j => JsonConvert.DeserializeObject(Encoding.UTF8.GetString(j.Body)).Username == "mutated")), Times.Once); - } - - public bool AssignEventHandler(ConsumerEventHandler eventHandler) - { - _fakeEventHandler = eventHandler; - return true; - } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.UnitTests/Handlers/HandlerContextNullabilityTests.cs b/src/ServiceConnect.UnitTests/Handlers/HandlerContextNullabilityTests.cs new file mode 100644 index 000000000..1a0e66987 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Handlers/HandlerContextNullabilityTests.cs @@ -0,0 +1,67 @@ +using System.Reflection; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.Handlers; + +public class HandlerContextNullabilityTests +{ + // The handler interfaces receive the per-message IConsumeContext as a parameter on + // HandleAsync / ExecuteAsync, not as an ambient property. These tests pin that no + // Context property is reintroduced — a property would silently break thread-safety + // on singleton-registered handlers. + + [Fact] + public void IMessageHandler_DoesNotExposeContextProperty() + { + var props = typeof(IMessageHandler<>).GetProperties(); + Assert.DoesNotContain(props, p => p.Name == "Context"); + } + + [Fact] + public void IProcessHandler_DoesNotExposeContextProperty() + { + var props = typeof(IProcessHandler<,>).GetProperties(); + Assert.DoesNotContain(props, p => p.Name == "Context"); + } + + [Fact] + public void IStreamHandler_DoesNotExposeStreamProperty() + { + var props = typeof(IStreamHandler<>).GetProperties(); + Assert.DoesNotContain(props, p => p.Name == "Stream"); + } + + [Fact] + public void IMessageHandler_HandleAsync_HasIConsumeContextParameter() + { + var method = typeof(IMessageHandler).GetMethod("HandleAsync")!; + var paramTypes = method.GetParameters().Select(p => p.ParameterType).ToArray(); + Assert.Contains(typeof(IConsumeContext), paramTypes); + } + + [Fact] + public void IStreamHandler_ExecuteAsync_HasIMessageBusReadStreamParameter() + { + var method = typeof(IStreamHandler).GetMethod("ExecuteAsync")!; + var paramTypes = method.GetParameters().Select(p => p.ParameterType).ToArray(); + Assert.Contains(typeof(IMessageBusReadStream), paramTypes); + } + + [Fact] + public void IProcessHandler_HandleAsync_HasIConsumeContextParameter() + { + // Contract guard: HandleAsync must accept (TMessage, TData, IConsumeContext, CancellationToken). + // Open generic so the assertion is structural rather than tied to a specific concrete TData/TMessage. + var method = typeof(IProcessHandler<,>).GetMethod(nameof(IProcessHandler.HandleAsync)); + Assert.NotNull(method); + var paramTypes = method!.GetParameters().Select(p => p.ParameterType.Name).ToArray(); + Assert.Contains(nameof(IConsumeContext), paramTypes); + } + + private sealed class DummyData : IProcessManagerData + { + public Guid CorrelationId { get; set; } + public int Version { get; set; } + } +} diff --git a/src/ServiceConnect.UnitTests/Handlers/HandlerScannerExceptionBreadthTests.cs b/src/ServiceConnect.UnitTests/Handlers/HandlerScannerExceptionBreadthTests.cs new file mode 100644 index 000000000..19bef1d41 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Handlers/HandlerScannerExceptionBreadthTests.cs @@ -0,0 +1,100 @@ +using Microsoft.Extensions.Logging; +using Moq; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.Handlers; + +public class HandlerScannerExceptionBreadthTests +{ + [Fact] + public void ScanForHandlers_AssemblyThrowsFileNotFoundException_ContinuesAndLogsWarning() + { + var loggerMock = new Mock(); + var good = typeof(HandlerScannerExceptionBreadthTests).Assembly; + var bad = new ThrowingAssembly(new FileNotFoundException("missing dep")); + + // ScanForHandlers iterates the input enumerable. Pass [bad, good] so the bad + // assembly's exception must not abort iteration — handlers in good must still + // be discovered. + var refs = HandlerScanner.ScanForHandlers([bad, good], loggerMock.Object); + + // Expect at least one handler from this test assembly. + Assert.NotEmpty(refs); + loggerMock.Verify(l => l.Log( + LogLevel.Warning, + It.IsAny(), + It.IsAny(), + It.IsAny(), + It.IsAny>()), + Times.AtLeastOnce); + } + + [Fact] + public void ScanForHandlers_AssemblyThrowsBadImageFormatException_ContinuesAndLogsWarning() + { + var loggerMock = new Mock(); + var bad = new ThrowingAssembly(new BadImageFormatException("native bitness mismatch")); + var good = typeof(HandlerScannerExceptionBreadthTests).Assembly; + + var refs = HandlerScanner.ScanForHandlers([bad, good], loggerMock.Object); + + Assert.NotEmpty(refs); + loggerMock.Verify(l => l.Log( + LogLevel.Warning, + It.IsAny(), + It.IsAny(), + It.IsAny(), + It.IsAny>()), + Times.AtLeastOnce); + } + + [Fact] + public void ScanForHandlers_AssemblyThrowsTypeLoadException_ContinuesAndLogsWarning() + { + var loggerMock = new Mock(); + var bad = new ThrowingAssembly(new TypeLoadException("type missing")); + var good = typeof(HandlerScannerExceptionBreadthTests).Assembly; + + var refs = HandlerScanner.ScanForHandlers([bad, good], loggerMock.Object); + + Assert.NotEmpty(refs); + loggerMock.Verify(l => l.Log( + LogLevel.Warning, + It.IsAny(), + It.IsAny(), + It.IsAny(), + It.IsAny>()), + Times.AtLeastOnce); + } + + [Fact] + public void ScanForHandlers_AssemblyThrowsFileLoadException_ContinuesAndLogsWarning() + { + var loggerMock = new Mock(); + var bad = new ThrowingAssembly(new FileLoadException("version drift")); + var good = typeof(HandlerScannerExceptionBreadthTests).Assembly; + + var refs = HandlerScanner.ScanForHandlers([bad, good], loggerMock.Object); + + Assert.NotEmpty(refs); + loggerMock.Verify(l => l.Log( + LogLevel.Warning, + It.IsAny(), + It.IsAny(), + It.IsAny(), + It.IsAny>()), + Times.AtLeastOnce); + } + + /// + /// Test double: an Assembly subclass whose GetTypes() throws the configured exception. + /// Suppresses analyzer warnings about constructing a custom Assembly because the only + /// surface we override is GetTypes()/FullName, which is what HandlerScanner reads. + /// + private sealed class ThrowingAssembly(Exception toThrow) : System.Reflection.Assembly + { + public override Type[] GetTypes() => throw toThrow; + public override string? FullName => "ThrowingAssembly"; + } +} diff --git a/src/ServiceConnect.UnitTests/Handlers/HandlerScannerTests.cs b/src/ServiceConnect.UnitTests/Handlers/HandlerScannerTests.cs new file mode 100644 index 000000000..8c130f091 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Handlers/HandlerScannerTests.cs @@ -0,0 +1,109 @@ +using System; +using System.Collections.Generic; +using System.Linq; +using System.Reflection; +using System.Threading.Tasks; +using Microsoft.Extensions.Logging; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.Handlers; + +// Test types defined here for scanning +public class TestScannerMessage(Guid correlationId) : Message(correlationId) +{ +} + +public class TestScannerHandler : IMessageHandler +{ + public Task HandleAsync(TestScannerMessage message, IConsumeContext context, CancellationToken cancellationToken = default) => Task.CompletedTask; +} + +public abstract class AbstractTestHandler : IMessageHandler +{ + public abstract Task HandleAsync(TestScannerMessage message, IConsumeContext context, CancellationToken cancellationToken = default); +} + +public class HandlerScannerTests +{ + private readonly IEnumerable _testAssemblies; + + public HandlerScannerTests() + { + _testAssemblies = [typeof(HandlerScannerTests).Assembly]; + } + + [Fact] + public void ScanForHandlers_FindsHandlerInAssembly() + { + var results = HandlerScanner.ScanForHandlers(_testAssemblies); + + Assert.Contains(results, r => r.HandlerType == typeof(TestScannerHandler)); + } + + [Fact] + public void ScanForHandlers_ReturnsCorrectMessageType() + { + var results = HandlerScanner.ScanForHandlers(_testAssemblies); + + var handlerRef = results.FirstOrDefault(r => r.HandlerType == typeof(TestScannerHandler)); + Assert.NotNull(handlerRef); + Assert.Equal(typeof(TestScannerMessage), handlerRef.MessageType); + } + + [Fact] + public void ScanForHandlers_IgnoresAbstractClasses() + { + var results = HandlerScanner.ScanForHandlers(_testAssemblies); + + Assert.DoesNotContain(results, r => r.HandlerType == typeof(AbstractTestHandler)); + } + + [Fact] + public void ScanForHandlers_IgnoresInterfaces() + { + var results = HandlerScanner.ScanForHandlers(_testAssemblies); + + Assert.All(results, r => Assert.False(r.HandlerType.IsInterface)); + } + + [Fact] + public void ScanForHandlers_EmptyAssemblies_ReturnsEmpty() + { + var results = HandlerScanner.ScanForHandlers([]); + + Assert.Empty(results); + } + + [Fact] + public void ScanForHandlers_AssemblyThrowsReflectionTypeLoadException_LogsWarning() + { + // Broken-assembly scan failures must surface as a Warning at scan time. Silently + // swallowing them would defer the symptom until a message arrived with no handler. + var logger = new Mock(); + var loaderException = new TypeLoadException("Could not resolve 'SomeMissingDependency'"); + var fakeAssembly = new Mock(); + fakeAssembly + .Setup(a => a.GetTypes()) + .Throws(new ReflectionTypeLoadException( + [typeof(string), null!], + [loaderException])); + fakeAssembly.SetupGet(a => a.FullName).Returns("Broken.Assembly, Version=1.0.0.0"); + + // Should NOT throw; partial list is still returned. + var results = HandlerScanner.ScanForHandlers([fakeAssembly.Object], logger.Object); + + Assert.Empty(results); // No handlers in the one resolvable Type (typeof(string)). + + logger.Verify(l => l.Log( + LogLevel.Warning, + It.IsAny(), + It.Is((v, _) => + v.ToString()!.Contains("Broken.Assembly") && v.ToString()!.Contains("partial")), + It.IsAny(), + It.IsAny>()), + Times.Once); + } +} diff --git a/src/ServiceConnect.UnitTests/Handlers/HandlerSignatureTests.cs b/src/ServiceConnect.UnitTests/Handlers/HandlerSignatureTests.cs new file mode 100644 index 000000000..c5517f99e --- /dev/null +++ b/src/ServiceConnect.UnitTests/Handlers/HandlerSignatureTests.cs @@ -0,0 +1,40 @@ +using Moq; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.Handlers; + +public class HandlerSignatureTests +{ + public sealed class TestMessage : Message + { + public TestMessage() : base(Guid.NewGuid()) { } + } + + public sealed class TestHandler : IMessageHandler + { + public IConsumeContext? CapturedContext { get; private set; } + public TestMessage? CapturedMessage { get; private set; } + + public Task HandleAsync(TestMessage message, IConsumeContext context, CancellationToken cancellationToken = default) + { + CapturedMessage = message; + CapturedContext = context; + return Task.CompletedTask; + } + } + + [Fact] + public async Task HandleAsync_ReceivesContextAsParameter() + { + var handler = new TestHandler(); + var message = new TestMessage(); + var context = Mock.Of(); + + await handler.HandleAsync(message, context, CancellationToken.None); + + Assert.Same(message, handler.CapturedMessage); + Assert.Same(context, handler.CapturedContext); + } + +} diff --git a/src/ServiceConnect.UnitTests/Headers/HeaderDecoderDepthTests.cs b/src/ServiceConnect.UnitTests/Headers/HeaderDecoderDepthTests.cs new file mode 100644 index 000000000..2fc360fb1 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Headers/HeaderDecoderDepthTests.cs @@ -0,0 +1,47 @@ +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.Headers; + +public class HeaderDecoderDepthTests +{ + [Fact] + public void Decode_NestedDictionaryExceedingDepthLimit_ReturnsTypeNameFallback() + { + // Build a 33-deep dictionary chain. Decode wraps Render in try/catch and + // falls back to typeof().FullName on any exception, so the depth-limit + // throw produces the type-name fallback rather than propagating. + IDictionary root = new Dictionary(); + IDictionary current = root; + for (var i = 0; i < 33; i++) + { + var inner = new Dictionary(); + current["nested"] = inner; + current = inner; + } + + var rendered = HeaderDecoder.Decode(root); + // Decode's catch falls back to type FullName for the bad input. + Assert.Equal(root.GetType().FullName, rendered); + } + + [Fact] + public void Decode_NestedDictionaryAtDepthLimit_RendersSuccessfully() + { + // Boundary check: a chain with 31 nested dictionaries plus a leaf reaches + // depth 32 inside Render without exceeding it. Should render without throwing. + IDictionary root = new Dictionary(); + IDictionary current = root; + for (var i = 0; i < 31; i++) + { + var inner = new Dictionary(); + current["nested"] = inner; + current = inner; + } + current["leaf"] = "value"; + + var rendered = HeaderDecoder.Decode(root); + Assert.NotNull(rendered); + Assert.StartsWith("{", rendered); + } +} diff --git a/src/ServiceConnect.UnitTests/Headers/HeaderDecoderEscapeTests.cs b/src/ServiceConnect.UnitTests/Headers/HeaderDecoderEscapeTests.cs new file mode 100644 index 000000000..ef5f90d41 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Headers/HeaderDecoderEscapeTests.cs @@ -0,0 +1,29 @@ +using System.Text.Json.Nodes; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.Headers; + +public class HeaderDecoderEscapeTests +{ + [Theory] + [InlineData("\\")] + [InlineData("\n")] + [InlineData("\r")] + [InlineData("\t")] + [InlineData("\"")] + [InlineData("\b")] + [InlineData("\f")] + [InlineData("\x01")] + public void Decode_StringWithSpecialChars_RoundTripsThroughJson(string input) + { + var dict = new Dictionary { ["k"] = input }; + var rendered = HeaderDecoder.Decode(dict); + + Assert.NotNull(rendered); + // Rendered must be valid JSON. + var parsed = JsonNode.Parse(rendered!); + Assert.NotNull(parsed); + Assert.Equal(input, parsed!["k"]!.GetValue()); + } +} diff --git a/src/ServiceConnect.UnitTests/Headers/HeaderDecoderTests.cs b/src/ServiceConnect.UnitTests/Headers/HeaderDecoderTests.cs new file mode 100644 index 000000000..d8244aa6e --- /dev/null +++ b/src/ServiceConnect.UnitTests/Headers/HeaderDecoderTests.cs @@ -0,0 +1,115 @@ +using System.Text; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.Headers; + +public class HeaderDecoderTests +{ + [Fact] + public void Decode_NullValue_ReturnsNull() + { + Assert.Null(HeaderDecoder.Decode(null)); + } + + [Fact] + public void Decode_StringValue_ReturnsSameString() + { + Assert.Equal("hello", HeaderDecoder.Decode("hello")); + } + + [Fact] + public void Decode_ByteArrayValue_ReturnsUtf8DecodedString() + { + var bytes = Encoding.UTF8.GetBytes("payload"); + + Assert.Equal("payload", HeaderDecoder.Decode(bytes)); + } + + [Fact] + public void Decode_IntegerHeader_FallsBackToString() + { + // AMQP integer-typed header values must not throw — a throw here causes + // the consumer host to nack-with-requeue and infinitely redeliver. + Assert.Equal("42", HeaderDecoder.Decode(42)); + } + + [Fact] + public void Decode_LongHeader_FallsBackToString() + { + Assert.Equal("9223372036854775807", HeaderDecoder.Decode(long.MaxValue)); + } + + [Fact] + public void Decode_GuidHeader_FallsBackToString() + { + var guid = Guid.Parse("0f3e2c7a-2c39-4f9e-8c2a-22f0d3d6a1aa"); + Assert.Equal(guid.ToString(), HeaderDecoder.Decode(guid)); + } + + [Fact] + public void Decode_DictionaryHeader_RendersAsJsonShape() + { + var nested = new Dictionary + { + ["a"] = "alpha", + ["b"] = 42, + }; + + var decoded = HeaderDecoder.Decode(nested); + + Assert.NotNull(decoded); + // Both keys and both values must appear; ordering is not guaranteed. + Assert.Contains("a", decoded!); + Assert.Contains("alpha", decoded); + Assert.Contains("b", decoded); + Assert.Contains("42", decoded); + Assert.DoesNotContain("System.Collections", decoded); + } + + [Fact] + public void Decode_ListHeader_RendersAsJsonArrayShape() + { + var arr = new List { "x", 1, "y" }; + + var decoded = HeaderDecoder.Decode(arr); + + Assert.NotNull(decoded); + Assert.Contains("x", decoded!); + Assert.Contains("1", decoded); + Assert.Contains("y", decoded); + Assert.DoesNotContain("System.Collections", decoded); + } + + [Fact] + public void Decode_ByteArrayInsideList_DecodesAsUtf8() + { + var arr = new List { "xyz"u8.ToArray() }; + var decoded = HeaderDecoder.Decode(arr); + Assert.NotNull(decoded); + Assert.Contains("xyz", decoded!); + } + + [Fact] + public void Decode_RenderingFault_FallsBackToTypeName() + { + var thrower = new ThrowOnEnumerate(); + var decoded = HeaderDecoder.Decode(thrower); + Assert.NotNull(decoded); + Assert.Contains(nameof(ThrowOnEnumerate), decoded!); + } + + private sealed class ThrowOnEnumerate : IEnumerable + { + public IEnumerator GetEnumerator() => throw new InvalidOperationException("boom"); + System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator() => GetEnumerator(); + } + + [Fact] + public void Decode_ArbitraryObject_FallsBackToString_DoesNotThrow() + { + var obj = new object(); + var decoded = HeaderDecoder.Decode(obj); + Assert.NotNull(decoded); + } +} diff --git a/src/ServiceConnect.UnitTests/HealthChecks/AddServiceConnectBusTests.cs b/src/ServiceConnect.UnitTests/HealthChecks/AddServiceConnectBusTests.cs new file mode 100644 index 000000000..019fd9ecb --- /dev/null +++ b/src/ServiceConnect.UnitTests/HealthChecks/AddServiceConnectBusTests.cs @@ -0,0 +1,70 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Diagnostics.HealthChecks; +using Microsoft.Extensions.Options; +using Moq; +using ServiceConnect.HealthChecks; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.HealthChecks; + +public class AddServiceConnectBusTests +{ + private static HealthCheckRegistration GetSingleRegistration(IServiceCollection services) + { + services.AddSingleton(new Mock().Object); + var provider = services.BuildServiceProvider(); + var options = provider.GetRequiredService>().Value; + return Assert.Single(options.Registrations); + } + + [Fact] + public void AddServiceConnectBus_DefaultName_IsServiceConnectBus() + { + var services = new ServiceCollection(); + services.AddHealthChecks().AddServiceConnectBus(); + + var registration = GetSingleRegistration(services); + Assert.Equal("serviceconnect-bus", registration.Name); + } + + [Fact] + public void AddServiceConnectBus_CustomName_Propagates() + { + var services = new ServiceCollection(); + services.AddHealthChecks().AddServiceConnectBus(name: "custom"); + + var registration = GetSingleRegistration(services); + Assert.Equal("custom", registration.Name); + } + + [Fact] + public void AddServiceConnectBus_TagsAndTimeoutAndFailureStatus_Propagate() + { + var services = new ServiceCollection(); + services.AddHealthChecks().AddServiceConnectBus( + tags: ["live"], + timeout: TimeSpan.FromSeconds(2), + failureStatus: HealthStatus.Degraded); + + var registration = GetSingleRegistration(services); + Assert.Contains("live", registration.Tags); + Assert.Equal(TimeSpan.FromSeconds(2), registration.Timeout); + Assert.Equal(HealthStatus.Degraded, registration.FailureStatus); + } + + [Fact] + public void AddServiceConnectBus_RegistrationFactory_ResolvesBusConsumingHealthCheck() + { + var services = new ServiceCollection(); + services.AddSingleton(new Mock().Object); + services.AddHealthChecks().AddServiceConnectBus(); + + var provider = services.BuildServiceProvider(); + var options = provider.GetRequiredService>().Value; + var registration = Assert.Single(options.Registrations); + + var instance = registration.Factory(provider); + Assert.IsType(instance); + } +} diff --git a/src/ServiceConnect.UnitTests/HealthChecks/AddServiceConnectConsumerTests.cs b/src/ServiceConnect.UnitTests/HealthChecks/AddServiceConnectConsumerTests.cs new file mode 100644 index 000000000..59972a3d1 --- /dev/null +++ b/src/ServiceConnect.UnitTests/HealthChecks/AddServiceConnectConsumerTests.cs @@ -0,0 +1,70 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Diagnostics.HealthChecks; +using Microsoft.Extensions.Options; +using Moq; +using ServiceConnect.HealthChecks; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.HealthChecks; + +public class AddServiceConnectConsumerTests +{ + private static HealthCheckRegistration GetSingleRegistration(IServiceCollection services) + { + services.AddSingleton(new Mock().Object); + var provider = services.BuildServiceProvider(); + var options = provider.GetRequiredService>().Value; + return Assert.Single(options.Registrations); + } + + [Fact] + public void AddServiceConnectConsumer_DefaultName_IsServiceConnectConsumer() + { + var services = new ServiceCollection(); + services.AddHealthChecks().AddServiceConnectConsumer(); + + var registration = GetSingleRegistration(services); + Assert.Equal("serviceconnect-consumer", registration.Name); + } + + [Fact] + public void AddServiceConnectConsumer_CustomName_Propagates() + { + var services = new ServiceCollection(); + services.AddHealthChecks().AddServiceConnectConsumer(name: "custom"); + + var registration = GetSingleRegistration(services); + Assert.Equal("custom", registration.Name); + } + + [Fact] + public void AddServiceConnectConsumer_TagsAndTimeoutAndFailureStatus_Propagate() + { + var services = new ServiceCollection(); + services.AddHealthChecks().AddServiceConnectConsumer( + tags: ["ready"], + timeout: TimeSpan.FromSeconds(2), + failureStatus: HealthStatus.Degraded); + + var registration = GetSingleRegistration(services); + Assert.Contains("ready", registration.Tags); + Assert.Equal(TimeSpan.FromSeconds(2), registration.Timeout); + Assert.Equal(HealthStatus.Degraded, registration.FailureStatus); + } + + [Fact] + public void AddServiceConnectConsumer_RegistrationFactory_ResolvesConsumerConnectionHealthCheck() + { + var services = new ServiceCollection(); + services.AddSingleton(new Mock().Object); + services.AddHealthChecks().AddServiceConnectConsumer(); + + var provider = services.BuildServiceProvider(); + var options = provider.GetRequiredService>().Value; + var registration = Assert.Single(options.Registrations); + + var instance = registration.Factory(provider); + Assert.IsType(instance); + } +} diff --git a/src/ServiceConnect.UnitTests/HealthChecks/AddServiceConnectProducerTests.cs b/src/ServiceConnect.UnitTests/HealthChecks/AddServiceConnectProducerTests.cs new file mode 100644 index 000000000..892e2ddaf --- /dev/null +++ b/src/ServiceConnect.UnitTests/HealthChecks/AddServiceConnectProducerTests.cs @@ -0,0 +1,70 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Diagnostics.HealthChecks; +using Microsoft.Extensions.Options; +using Moq; +using ServiceConnect.HealthChecks; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.HealthChecks; + +public class AddServiceConnectProducerTests +{ + private static HealthCheckRegistration GetSingleRegistration(IServiceCollection services) + { + services.AddSingleton(new Mock().Object); + var provider = services.BuildServiceProvider(); + var options = provider.GetRequiredService>().Value; + return Assert.Single(options.Registrations); + } + + [Fact] + public void AddServiceConnectProducer_DefaultName_IsServiceConnectProducer() + { + var services = new ServiceCollection(); + services.AddHealthChecks().AddServiceConnectProducer(); + + var registration = GetSingleRegistration(services); + Assert.Equal("serviceconnect-producer", registration.Name); + } + + [Fact] + public void AddServiceConnectProducer_CustomName_Propagates() + { + var services = new ServiceCollection(); + services.AddHealthChecks().AddServiceConnectProducer(name: "custom"); + + var registration = GetSingleRegistration(services); + Assert.Equal("custom", registration.Name); + } + + [Fact] + public void AddServiceConnectProducer_TagsAndTimeoutAndFailureStatus_Propagate() + { + var services = new ServiceCollection(); + services.AddHealthChecks().AddServiceConnectProducer( + tags: ["ready"], + timeout: TimeSpan.FromSeconds(2), + failureStatus: HealthStatus.Degraded); + + var registration = GetSingleRegistration(services); + Assert.Contains("ready", registration.Tags); + Assert.Equal(TimeSpan.FromSeconds(2), registration.Timeout); + Assert.Equal(HealthStatus.Degraded, registration.FailureStatus); + } + + [Fact] + public void AddServiceConnectProducer_RegistrationFactory_ResolvesProducerConnectionHealthCheck() + { + var services = new ServiceCollection(); + services.AddSingleton(new Mock().Object); + services.AddHealthChecks().AddServiceConnectProducer(); + + var provider = services.BuildServiceProvider(); + var options = provider.GetRequiredService>().Value; + var registration = Assert.Single(options.Registrations); + + var instance = registration.Factory(provider); + Assert.IsType(instance); + } +} diff --git a/src/ServiceConnect.UnitTests/HealthChecks/BusConsumingHealthCheckRecoveryGraceTests.cs b/src/ServiceConnect.UnitTests/HealthChecks/BusConsumingHealthCheckRecoveryGraceTests.cs new file mode 100644 index 000000000..13f64fd0a --- /dev/null +++ b/src/ServiceConnect.UnitTests/HealthChecks/BusConsumingHealthCheckRecoveryGraceTests.cs @@ -0,0 +1,172 @@ +using Microsoft.Extensions.Diagnostics.HealthChecks; +using Microsoft.Extensions.Time.Testing; +using Moq; +using ServiceConnect.HealthChecks; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.HealthChecks; + +/// +/// Recovery-grace coverage for . Pre-fix the check flipped +/// Unhealthy on any momentary =false observation, crash-looping +/// pods wired on liveness probes during broker auto-recovery. Post-fix a configurable grace +/// window after the most recent Healthy observation suppresses transient Unhealthy flips, while +/// a broker-cancelled short-circuit preserves immediate Unhealthy on permanent failures. +/// +public class BusConsumingHealthCheckRecoveryGraceTests +{ + private static HealthCheckContext Ctx(BusConsumingHealthCheck check) => new() + { + Registration = new HealthCheckRegistration("b", check, HealthStatus.Unhealthy, null), + }; + + [Fact] + public async Task CheckHealthAsync_NeverHealthy_FlipsUnhealthyImmediately() + { + // First-probe-before-Healthy must be Unhealthy regardless of grace: a never-Healthy + // consumer is genuinely unhealthy, not lazy. + var bus = Mock.Of(b => b.IsConsuming == false); + var time = new FakeTimeProvider(); + var check = new BusConsumingHealthCheck(bus, consumer: null, + recoveryGraceWindow: TimeSpan.FromSeconds(30), timeProvider: time); + + var result = await check.CheckHealthAsync(Ctx(check)); + + Assert.Equal(HealthStatus.Unhealthy, result.Status); + Assert.Equal("Bus is not consuming.", result.Description); + } + + [Fact] + public async Task CheckHealthAsync_WithinGraceWindow_ReturnsHealthy() + { + var consuming = true; + var bus = new Mock(); + bus.Setup(b => b.IsConsuming).Returns(() => consuming); + var time = new FakeTimeProvider(); + var check = new BusConsumingHealthCheck(bus.Object, consumer: null, + recoveryGraceWindow: TimeSpan.FromSeconds(30), timeProvider: time); + + // First probe: bus is consuming → Healthy (stamps lastHealthy). + var first = await check.CheckHealthAsync(Ctx(check)); + Assert.Equal(HealthStatus.Healthy, first.Status); + + // Bus disconnects. + consuming = false; + time.Advance(TimeSpan.FromSeconds(10)); + + // Within grace → still Healthy with a recovery-grace note. + var second = await check.CheckHealthAsync(Ctx(check)); + Assert.Equal(HealthStatus.Healthy, second.Status); + Assert.Contains("recovery grace", second.Description); + } + + [Fact] + public async Task CheckHealthAsync_BeyondGraceWindow_FlipsUnhealthy() + { + var consuming = true; + var bus = new Mock(); + bus.Setup(b => b.IsConsuming).Returns(() => consuming); + var time = new FakeTimeProvider(); + var check = new BusConsumingHealthCheck(bus.Object, consumer: null, + recoveryGraceWindow: TimeSpan.FromSeconds(30), timeProvider: time); + + await check.CheckHealthAsync(Ctx(check)); // stamps lastHealthy. + + consuming = false; + time.Advance(TimeSpan.FromSeconds(31)); + + var result = await check.CheckHealthAsync(Ctx(check)); + Assert.Equal(HealthStatus.Unhealthy, result.Status); + } + + [Fact] + public async Task CheckHealthAsync_BrokerCancelled_BypassesGrace() + { + var bus = new Mock(); + bus.Setup(b => b.IsConsuming).Returns(true); + var consumer = new Mock(); + consumer.Setup(c => c.IsCancelledByBroker).Returns(false); + var time = new FakeTimeProvider(); + var check = new BusConsumingHealthCheck(bus.Object, consumer.Object, + recoveryGraceWindow: TimeSpan.FromSeconds(30), timeProvider: time); + + await check.CheckHealthAsync(Ctx(check)); // stamps lastHealthy. + + // Bus disconnects AND broker cancels — broker-cancelled short-circuit takes precedence. + bus.Setup(b => b.IsConsuming).Returns(false); + consumer.Setup(c => c.IsCancelledByBroker).Returns(true); + time.Advance(TimeSpan.FromSeconds(5)); // well within grace. + + var result = await check.CheckHealthAsync(Ctx(check)); + Assert.Equal(HealthStatus.Unhealthy, result.Status); + Assert.Contains("broker cancelled", result.Description); + } + + [Fact] + public async Task CheckHealthAsync_HealthyAgain_RestampLastHealthy() + { + var consuming = true; + var bus = new Mock(); + bus.Setup(b => b.IsConsuming).Returns(() => consuming); + var time = new FakeTimeProvider(); + var check = new BusConsumingHealthCheck(bus.Object, consumer: null, + recoveryGraceWindow: TimeSpan.FromSeconds(30), timeProvider: time); + + await check.CheckHealthAsync(Ctx(check)); // T=0, stamps. + + // Disconnect at T=15 (grace branch), recover at T=20 (restamp), disconnect again at + // T=40 (within 30s of T=20). Without restamping the second disconnect would be 40s + // past the original T=0 stamp and fall outside grace. + consuming = false; + time.Advance(TimeSpan.FromSeconds(15)); + await check.CheckHealthAsync(Ctx(check)); // grace branch, lastHealthy unchanged. + consuming = true; + time.Advance(TimeSpan.FromSeconds(5)); + await check.CheckHealthAsync(Ctx(check)); // T=20, restamps. + consuming = false; + time.Advance(TimeSpan.FromSeconds(20)); // T=40, within 30s of T=20. + var result = await check.CheckHealthAsync(Ctx(check)); + + Assert.Equal(HealthStatus.Healthy, result.Status); + Assert.Contains("recovery grace", result.Description); + } + + [Fact] + public void Ctor_NegativeGrace_Throws() + { + Assert.Throws(() => + new BusConsumingHealthCheck(Mock.Of(), consumer: null, + recoveryGraceWindow: TimeSpan.FromSeconds(-1), + timeProvider: TimeProvider.System)); + } + + [Fact] + public async Task CheckHealthAsync_ZeroGrace_DisablesGracePath() + { + // ZeroGrace disables the grace path: the gate `_recoveryGraceWindow > TimeSpan.Zero` + // is false, so the grace branch is skipped even after a Healthy stamp. + var consuming = true; + var bus = new Mock(); + bus.Setup(b => b.IsConsuming).Returns(() => consuming); + var time = new FakeTimeProvider(); + var check = new BusConsumingHealthCheck(bus.Object, consumer: null, + recoveryGraceWindow: TimeSpan.Zero, timeProvider: time); + + await check.CheckHealthAsync(Ctx(check)); // Healthy, stamps lastHealthy. + consuming = false; + var result = await check.CheckHealthAsync(Ctx(check)); + + Assert.Equal(HealthStatus.Unhealthy, result.Status); + Assert.Equal("Bus is not consuming.", result.Description); + } + + [Fact] + public void Ctor_NullTimeProvider_Throws() + { + Assert.Throws(() => + new BusConsumingHealthCheck(Mock.Of(), consumer: null, + recoveryGraceWindow: TimeSpan.FromSeconds(30), + timeProvider: null!)); + } +} diff --git a/src/ServiceConnect.UnitTests/HealthChecks/BusConsumingHealthCheckTests.cs b/src/ServiceConnect.UnitTests/HealthChecks/BusConsumingHealthCheckTests.cs new file mode 100644 index 000000000..39b2ae5a5 --- /dev/null +++ b/src/ServiceConnect.UnitTests/HealthChecks/BusConsumingHealthCheckTests.cs @@ -0,0 +1,86 @@ +using Microsoft.Extensions.Diagnostics.HealthChecks; +using Moq; +using ServiceConnect.HealthChecks; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.HealthChecks; + +public class BusConsumingHealthCheckTests +{ + private readonly Mock _bus = new(); + + private BusConsumingHealthCheck CreateSut() => new(_bus.Object); + + [Fact] + public async Task CheckHealthAsync_BusIsConsuming_ReturnsHealthy() + { + _bus.SetupGet(b => b.IsConsuming).Returns(true); + + var result = await CreateSut().CheckHealthAsync(new HealthCheckContext()); + + Assert.Equal(HealthStatus.Healthy, result.Status); + Assert.Contains("consuming", result.Description, StringComparison.OrdinalIgnoreCase); + } + + [Fact] + public async Task CheckHealthAsync_BusIsNotConsuming_ReturnsUnhealthy() + { + _bus.SetupGet(b => b.IsConsuming).Returns(false); + + var ctx = new HealthCheckContext + { + Registration = new HealthCheckRegistration("x", _ => CreateSut(), HealthStatus.Unhealthy, null), + }; + var result = await CreateSut().CheckHealthAsync(ctx); + + Assert.Equal(HealthStatus.Unhealthy, result.Status); + Assert.Contains("not consuming", result.Description, StringComparison.OrdinalIgnoreCase); + } + + [Fact] + public async Task CheckHealthAsync_BusIsNotConsuming_HonoursDegradedFailureStatus() + { + _bus.SetupGet(b => b.IsConsuming).Returns(false); + + var ctx = new HealthCheckContext + { + Registration = new HealthCheckRegistration("x", _ => CreateSut(), HealthStatus.Degraded, null), + }; + var result = await CreateSut().CheckHealthAsync(ctx); + + Assert.Equal(HealthStatus.Degraded, result.Status); + } + + [Fact] + public async Task CheckHealthAsync_BusIsNotConsuming_NoRegistration_DefaultsToUnhealthy() + { + _bus.SetupGet(b => b.IsConsuming).Returns(false); + + // HealthCheckContext with null Registration — exercises the + // `context.Registration?.FailureStatus ?? HealthStatus.Unhealthy` fallback path. + var result = await CreateSut().CheckHealthAsync(new HealthCheckContext()); + + Assert.Equal(HealthStatus.Unhealthy, result.Status); + } + + [Fact] + public async Task CheckHealthAsync_BusReportsConsumingFalse_DueToBrokerCancel_ReturnsUnhealthy() + { + // The broker-cancel side is exercised at Bus / Consumer level — see BusIsConsumingTests + // and RabbitMqConsumerHostBrokerCancelTests. From the health-check's vantage the only + // observable is IsConsuming = false; this test asserts the existing mapping still holds + // for that path so the integrated chain (host broker-cancel → Consumer.IsCancelledByBroker + // → Bus.IsConsuming = false → BusConsumingHealthCheck Unhealthy) is end-to-end covered. + _bus.SetupGet(b => b.IsConsuming).Returns(false); + + var ctx = new HealthCheckContext + { + Registration = new HealthCheckRegistration("bus-consuming", _ => CreateSut(), HealthStatus.Unhealthy, null), + }; + var result = await CreateSut().CheckHealthAsync(ctx); + + Assert.Equal(HealthStatus.Unhealthy, result.Status); + Assert.Contains("not consuming", result.Description, StringComparison.OrdinalIgnoreCase); + } +} diff --git a/src/ServiceConnect.UnitTests/HealthChecks/ConsumerConnectionHealthCheckRecoveryGraceTests.cs b/src/ServiceConnect.UnitTests/HealthChecks/ConsumerConnectionHealthCheckRecoveryGraceTests.cs new file mode 100644 index 000000000..4ca4ebca6 --- /dev/null +++ b/src/ServiceConnect.UnitTests/HealthChecks/ConsumerConnectionHealthCheckRecoveryGraceTests.cs @@ -0,0 +1,167 @@ +using Microsoft.Extensions.Diagnostics.HealthChecks; +using Microsoft.Extensions.Time.Testing; +using Moq; +using ServiceConnect.HealthChecks; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.HealthChecks; + +/// +/// Recovery-grace coverage for . Mirrors the +/// shape but observes +/// / directly. +/// +public class ConsumerConnectionHealthCheckRecoveryGraceTests +{ + private static HealthCheckContext Ctx(ConsumerConnectionHealthCheck check) => new() + { + Registration = new HealthCheckRegistration("c", check, HealthStatus.Unhealthy, null), + }; + + [Fact] + public async Task CheckHealthAsync_NeverHealthy_FlipsUnhealthyImmediately() + { + var consumer = new Mock(); + consumer.Setup(c => c.IsConnected).Returns(false); + consumer.Setup(c => c.IsCancelledByBroker).Returns(false); + var time = new FakeTimeProvider(); + var check = new ConsumerConnectionHealthCheck(consumer.Object, + recoveryGraceWindow: TimeSpan.FromSeconds(30), timeProvider: time); + + var result = await check.CheckHealthAsync(Ctx(check)); + + Assert.Equal(HealthStatus.Unhealthy, result.Status); + Assert.Equal("Consumer connection is closed.", result.Description); + } + + [Fact] + public async Task CheckHealthAsync_WithinGraceWindow_ReturnsHealthy() + { + var connected = true; + var consumer = new Mock(); + consumer.Setup(c => c.IsConnected).Returns(() => connected); + consumer.Setup(c => c.IsCancelledByBroker).Returns(false); + var time = new FakeTimeProvider(); + var check = new ConsumerConnectionHealthCheck(consumer.Object, + recoveryGraceWindow: TimeSpan.FromSeconds(30), timeProvider: time); + + var first = await check.CheckHealthAsync(Ctx(check)); + Assert.Equal(HealthStatus.Healthy, first.Status); + + connected = false; + time.Advance(TimeSpan.FromSeconds(10)); + + var second = await check.CheckHealthAsync(Ctx(check)); + Assert.Equal(HealthStatus.Healthy, second.Status); + Assert.Contains("recovery grace", second.Description); + } + + [Fact] + public async Task CheckHealthAsync_BeyondGraceWindow_FlipsUnhealthy() + { + var connected = true; + var consumer = new Mock(); + consumer.Setup(c => c.IsConnected).Returns(() => connected); + consumer.Setup(c => c.IsCancelledByBroker).Returns(false); + var time = new FakeTimeProvider(); + var check = new ConsumerConnectionHealthCheck(consumer.Object, + recoveryGraceWindow: TimeSpan.FromSeconds(30), timeProvider: time); + + await check.CheckHealthAsync(Ctx(check)); // stamps lastHealthy. + + connected = false; + time.Advance(TimeSpan.FromSeconds(31)); + + var result = await check.CheckHealthAsync(Ctx(check)); + Assert.Equal(HealthStatus.Unhealthy, result.Status); + } + + [Fact] + public async Task CheckHealthAsync_BrokerCancelled_BypassesGrace() + { + var connected = true; + var cancelled = false; + var consumer = new Mock(); + consumer.Setup(c => c.IsConnected).Returns(() => connected); + consumer.Setup(c => c.IsCancelledByBroker).Returns(() => cancelled); + var time = new FakeTimeProvider(); + var check = new ConsumerConnectionHealthCheck(consumer.Object, + recoveryGraceWindow: TimeSpan.FromSeconds(30), timeProvider: time); + + await check.CheckHealthAsync(Ctx(check)); // stamps lastHealthy. + + // Disconnect AND broker cancels — broker-cancelled short-circuit takes precedence. + connected = false; + cancelled = true; + time.Advance(TimeSpan.FromSeconds(5)); // well within grace. + + var result = await check.CheckHealthAsync(Ctx(check)); + Assert.Equal(HealthStatus.Unhealthy, result.Status); + Assert.Contains("broker cancelled", result.Description); + } + + [Fact] + public async Task CheckHealthAsync_HealthyAgain_RestampLastHealthy() + { + var connected = true; + var consumer = new Mock(); + consumer.Setup(c => c.IsConnected).Returns(() => connected); + consumer.Setup(c => c.IsCancelledByBroker).Returns(false); + var time = new FakeTimeProvider(); + var check = new ConsumerConnectionHealthCheck(consumer.Object, + recoveryGraceWindow: TimeSpan.FromSeconds(30), timeProvider: time); + + await check.CheckHealthAsync(Ctx(check)); // T=0, stamps. + + connected = false; + time.Advance(TimeSpan.FromSeconds(15)); + await check.CheckHealthAsync(Ctx(check)); // grace branch, lastHealthy unchanged. + connected = true; + time.Advance(TimeSpan.FromSeconds(5)); + await check.CheckHealthAsync(Ctx(check)); // T=20, restamps. + connected = false; + time.Advance(TimeSpan.FromSeconds(20)); // T=40, within 30s of T=20. + var result = await check.CheckHealthAsync(Ctx(check)); + + Assert.Equal(HealthStatus.Healthy, result.Status); + Assert.Contains("recovery grace", result.Description); + } + + [Fact] + public void Ctor_NegativeGrace_Throws() + { + Assert.Throws(() => + new ConsumerConnectionHealthCheck(Mock.Of(), + recoveryGraceWindow: TimeSpan.FromSeconds(-1), + timeProvider: TimeProvider.System)); + } + + [Fact] + public async Task CheckHealthAsync_ZeroGrace_DisablesGracePath() + { + var connected = true; + var consumer = new Mock(); + consumer.Setup(c => c.IsConnected).Returns(() => connected); + consumer.Setup(c => c.IsCancelledByBroker).Returns(false); + var time = new FakeTimeProvider(); + var check = new ConsumerConnectionHealthCheck(consumer.Object, + recoveryGraceWindow: TimeSpan.Zero, timeProvider: time); + + await check.CheckHealthAsync(Ctx(check)); // Healthy, stamps lastHealthy. + connected = false; + var result = await check.CheckHealthAsync(Ctx(check)); + + Assert.Equal(HealthStatus.Unhealthy, result.Status); + Assert.Equal("Consumer connection is closed.", result.Description); + } + + [Fact] + public void Ctor_NullTimeProvider_Throws() + { + Assert.Throws(() => + new ConsumerConnectionHealthCheck(Mock.Of(), + recoveryGraceWindow: TimeSpan.FromSeconds(30), + timeProvider: null!)); + } +} diff --git a/src/ServiceConnect.UnitTests/HealthChecks/ConsumerConnectionHealthCheckTests.cs b/src/ServiceConnect.UnitTests/HealthChecks/ConsumerConnectionHealthCheckTests.cs new file mode 100644 index 000000000..c7c1bd700 --- /dev/null +++ b/src/ServiceConnect.UnitTests/HealthChecks/ConsumerConnectionHealthCheckTests.cs @@ -0,0 +1,109 @@ +using Microsoft.Extensions.Diagnostics.HealthChecks; +using Moq; +using ServiceConnect.HealthChecks; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.HealthChecks; + +public class ConsumerConnectionHealthCheckTests +{ + private readonly Mock _consumer = new(); + + private ConsumerConnectionHealthCheck CreateSut() => new(_consumer.Object); + + [Fact] + public async Task CheckHealthAsync_ConsumerConnected_ReturnsHealthy() + { + _consumer.SetupGet(c => c.IsConnected).Returns(true); + + var result = await CreateSut().CheckHealthAsync(new HealthCheckContext()); + + Assert.Equal(HealthStatus.Healthy, result.Status); + Assert.Contains("open", result.Description, StringComparison.OrdinalIgnoreCase); + } + + [Fact] + public async Task CheckHealthAsync_ConsumerNotConnected_ReturnsUnhealthy() + { + _consumer.SetupGet(c => c.IsConnected).Returns(false); + + var sut = CreateSut(); + var ctx = new HealthCheckContext + { + Registration = new HealthCheckRegistration("x", _ => sut, HealthStatus.Unhealthy, null), + }; + var result = await sut.CheckHealthAsync(ctx); + + Assert.Equal(HealthStatus.Unhealthy, result.Status); + Assert.Contains("closed", result.Description, StringComparison.OrdinalIgnoreCase); + } + + [Fact] + public async Task CheckHealthAsync_ConsumerNotConnected_HonoursDegradedFailureStatus() + { + _consumer.SetupGet(c => c.IsConnected).Returns(false); + + var sut = CreateSut(); + var ctx = new HealthCheckContext + { + Registration = new HealthCheckRegistration("x", _ => sut, HealthStatus.Degraded, null), + }; + var result = await sut.CheckHealthAsync(ctx); + + Assert.Equal(HealthStatus.Degraded, result.Status); + } + + [Fact] + public async Task CheckHealthAsync_ConsumerNotConnected_NoRegistration_DefaultsToUnhealthy() + { + _consumer.SetupGet(c => c.IsConnected).Returns(false); + + // HealthCheckContext with null Registration — exercises the + // `context.Registration?.FailureStatus ?? HealthStatus.Unhealthy` fallback path. + var result = await CreateSut().CheckHealthAsync(new HealthCheckContext()); + + Assert.Equal(HealthStatus.Unhealthy, result.Status); + } + + [Fact] + public async Task CheckHealthAsync_ConnectedAndBrokerCancelled_ReturnsUnhealthy() + { + // IsConnected=true but IsCancelledByBroker=true: the AMQP TCP connection is up + // but the consumer registration has been torn down by the broker (queue deleted, + // policy expired, mirror promoted). The check must report Unhealthy so that + // readiness probes remove the pod from the load balancer. + _consumer.SetupGet(c => c.IsConnected).Returns(true); + _consumer.SetupGet(c => c.IsCancelledByBroker).Returns(true); + + var sut = CreateSut(); + var ctx = new HealthCheckContext + { + Registration = new HealthCheckRegistration("x", _ => sut, HealthStatus.Unhealthy, null), + }; + var result = await sut.CheckHealthAsync(ctx); + + Assert.Equal(HealthStatus.Unhealthy, result.Status); + Assert.Contains("broker cancelled", result.Description, StringComparison.OrdinalIgnoreCase); + } + + [Fact] + public async Task CheckHealthAsync_ConnectedAndBrokerCancelled_HonoursDegradedFailureStatus() + { + // IsCancelledByBroker=true respects the FailureStatus override on the registration, + // the same way the disconnect branch does. A Degraded override lets operators + // distinguish a cancelled consumer (degraded service) from a hard failure. + _consumer.SetupGet(c => c.IsConnected).Returns(true); + _consumer.SetupGet(c => c.IsCancelledByBroker).Returns(true); + + var sut = CreateSut(); + var ctx = new HealthCheckContext + { + Registration = new HealthCheckRegistration("x", _ => sut, HealthStatus.Degraded, null), + }; + var result = await sut.CheckHealthAsync(ctx); + + Assert.Equal(HealthStatus.Degraded, result.Status); + Assert.Contains("broker cancelled", result.Description, StringComparison.OrdinalIgnoreCase); + } +} diff --git a/src/ServiceConnect.UnitTests/HealthChecks/HealthCheckCancellationTests.cs b/src/ServiceConnect.UnitTests/HealthChecks/HealthCheckCancellationTests.cs new file mode 100644 index 000000000..bb3803199 --- /dev/null +++ b/src/ServiceConnect.UnitTests/HealthChecks/HealthCheckCancellationTests.cs @@ -0,0 +1,46 @@ +using Microsoft.Extensions.Diagnostics.HealthChecks; +using Moq; +using ServiceConnect.HealthChecks; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.HealthChecks; + +public class HealthCheckCancellationTests +{ + [Fact] + public async Task BusConsumingHealthCheck_PreCancelledToken_Throws() + { + var bus = Mock.Of(b => b.IsConsuming == true); + var check = new BusConsumingHealthCheck(bus); + using var cts = new CancellationTokenSource(); + cts.Cancel(); + + await Assert.ThrowsAsync(() => + check.CheckHealthAsync(new HealthCheckContext(), cts.Token)); + } + + [Fact] + public async Task ConsumerConnectionHealthCheck_PreCancelledToken_Throws() + { + var consumer = Mock.Of(c => c.IsConnected == true); + var check = new ConsumerConnectionHealthCheck(consumer); + using var cts = new CancellationTokenSource(); + cts.Cancel(); + + await Assert.ThrowsAsync(() => + check.CheckHealthAsync(new HealthCheckContext(), cts.Token)); + } + + [Fact] + public async Task ProducerConnectionHealthCheck_PreCancelledToken_Throws() + { + var producer = Mock.Of(p => p.IsHealthy == true); + var check = new ProducerConnectionHealthCheck(producer); + using var cts = new CancellationTokenSource(); + cts.Cancel(); + + await Assert.ThrowsAsync(() => + check.CheckHealthAsync(new HealthCheckContext(), cts.Token)); + } +} diff --git a/src/ServiceConnect.UnitTests/HealthChecks/HealthCheckRegistrationCachingTests.cs b/src/ServiceConnect.UnitTests/HealthChecks/HealthCheckRegistrationCachingTests.cs new file mode 100644 index 000000000..2db54505c --- /dev/null +++ b/src/ServiceConnect.UnitTests/HealthChecks/HealthCheckRegistrationCachingTests.cs @@ -0,0 +1,81 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Diagnostics.HealthChecks; +using Microsoft.Extensions.Options; +using Moq; +using ServiceConnect.HealthChecks; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.HealthChecks; + +/// +/// The registration factory caches the wrapper per IServiceProvider via a +/// ConditionalWeakTable. Two probes against the SAME provider get the SAME wrapper — +/// preserving the wrapper's recovery-grace state (instance-scoped +/// _lastHealthyTicks) across probes. The IServiceProvider-rebuild contract +/// is preserved by the table's GC semantics: a rebuilt provider becomes unreachable, +/// the cached wrapper is GC-eligible, and the next probe against the new provider +/// allocates a fresh wrapper. A closure-captured cache would survive the SP rebuild +/// and break that contract; per-SP caching composes both invariants. +/// +public class HealthCheckRegistrationCachingTests +{ + [Fact] + public void AddServiceConnectBus_TwoProbes_ReturnSameWrapperForSameProvider() + { + var bus = Mock.Of(b => b.IsConsuming == true); + var services = new ServiceCollection(); + services.AddSingleton(bus); + services.AddHealthChecks().AddServiceConnectBus("test"); + + var sp = services.BuildServiceProvider(); + var options = sp.GetRequiredService>().Value; + var registration = options.Registrations.Single(r => r.Name == "test"); + + var first = registration.Factory(sp); + var second = registration.Factory(sp); + + // Same wrapper across probes against the same SP — recovery-grace state stable. + Assert.Same(first, second); + Assert.IsType(first); + } + + [Fact] + public void AddServiceConnectConsumer_TwoProbes_ReturnSameWrapperForSameProvider() + { + var consumer = Mock.Of(c => c.IsConnected == true); + var services = new ServiceCollection(); + services.AddSingleton(consumer); + services.AddHealthChecks().AddServiceConnectConsumer("test"); + + var sp = services.BuildServiceProvider(); + var options = sp.GetRequiredService>().Value; + var registration = options.Registrations.Single(r => r.Name == "test"); + + var first = registration.Factory(sp); + var second = registration.Factory(sp); + + Assert.Same(first, second); + Assert.IsType(first); + } + + [Fact] + public void AddServiceConnectProducer_TwoProbes_ReturnSameWrapperForSameProvider() + { + var producer = Mock.Of(p => + p.GetHealthSnapshot() == new ProducerHealthSnapshot(true, true)); + var services = new ServiceCollection(); + services.AddSingleton(producer); + services.AddHealthChecks().AddServiceConnectProducer("test"); + + var sp = services.BuildServiceProvider(); + var options = sp.GetRequiredService>().Value; + var registration = options.Registrations.Single(r => r.Name == "test"); + + var first = registration.Factory(sp); + var second = registration.Factory(sp); + + Assert.Same(first, second); + Assert.IsType(first); + } +} diff --git a/src/ServiceConnect.UnitTests/HealthChecks/HealthCheckRegistrationProviderRebuildTests.cs b/src/ServiceConnect.UnitTests/HealthChecks/HealthCheckRegistrationProviderRebuildTests.cs new file mode 100644 index 000000000..0cbdc48f8 --- /dev/null +++ b/src/ServiceConnect.UnitTests/HealthChecks/HealthCheckRegistrationProviderRebuildTests.cs @@ -0,0 +1,102 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Diagnostics.HealthChecks; +using Microsoft.Extensions.Options; +using Moq; +using ServiceConnect.HealthChecks; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.HealthChecks; + +/// +/// Pre-fix the registration's cached closure outlived the IServiceProvider that +/// resolved the original IBus/IConsumer/IProducer. A host that builds a fresh provider +/// re-runs the probe lambda but the lambda still observes the cached check from the +/// original provider's resolution — which has been disposed. +/// +/// Post-fix the lambda resolves fresh from the supplied sp on every probe; two different +/// providers yield two different check instances. +/// +public class HealthCheckRegistrationProviderRebuildTests +{ + [Fact] + public void AddServiceConnectBus_RebuiltProvider_ResolvesFreshCheck() + { + var bus1 = Mock.Of(b => b.IsConsuming == true); + var bus2 = Mock.Of(b => b.IsConsuming == false); + + var registration = BuildRegistration(b => + b.AddServiceConnectBus("bus", sp => sp.GetRequiredService())); + + var p1 = new ServiceCollection().AddSingleton(bus1).BuildServiceProvider(); + var p2 = new ServiceCollection().AddSingleton(bus2).BuildServiceProvider(); + var check1 = registration.Factory(p1); + var check2 = registration.Factory(p2); + + Assert.IsType(check1); + Assert.IsType(check2); + // Pre-fix these would have been the SAME (cached) instance wrapping bus1 even + // when probed via p2. Post-fix the registration factory always creates a fresh + // wrapper; the IBus itself is cached by the IServiceProvider, not by us. + Assert.NotSame(check1, check2); + } + + [Fact] + public void AddServiceConnectConsumer_RebuiltProvider_ResolvesFreshCheck() + { + var consumer1 = Mock.Of(c => c.IsConnected == true); + var consumer2 = Mock.Of(c => c.IsConnected == false); + + var registration = BuildRegistration(b => + b.AddServiceConnectConsumer("c", sp => sp.GetRequiredService())); + + var p1 = new ServiceCollection().AddSingleton(consumer1).BuildServiceProvider(); + var p2 = new ServiceCollection().AddSingleton(consumer2).BuildServiceProvider(); + var check1 = registration.Factory(p1); + var check2 = registration.Factory(p2); + + Assert.IsType(check1); + Assert.IsType(check2); + Assert.NotSame(check1, check2); + } + + [Fact] + public void AddServiceConnectProducer_RebuiltProvider_ResolvesFreshCheck() + { + var producer1 = Mock.Of(p => + p.GetHealthSnapshot() == new ProducerHealthSnapshot(true, true)); + var producer2 = Mock.Of(p => + p.GetHealthSnapshot() == new ProducerHealthSnapshot(false, true)); + + var registration = BuildRegistration(b => + b.AddServiceConnectProducer("p", sp => sp.GetRequiredService())); + + var p1 = new ServiceCollection().AddSingleton(producer1).BuildServiceProvider(); + var p2 = new ServiceCollection().AddSingleton(producer2).BuildServiceProvider(); + var check1 = registration.Factory(p1); + var check2 = registration.Factory(p2); + + Assert.IsType(check1); + Assert.IsType(check2); + Assert.NotSame(check1, check2); + } + + /// + /// Builds a fresh ServiceCollection / IHealthChecksBuilder, applies the supplied + /// registration callback, and returns the single registration produced. Lets each + /// test exercise the factory lambda against multiple IServiceProvider instances + /// without re-running the full ServiceCollection plumbing. + /// + private static HealthCheckRegistration BuildRegistration(Action register) + { + var services = new ServiceCollection(); + var builder = services.AddHealthChecks(); + register(builder); + + // The registration is added to HealthCheckServiceOptions; pull it back out so + // the factory can be exercised directly. + var sp = services.BuildServiceProvider(); + var options = sp.GetRequiredService>().Value; + return Assert.Single(options.Registrations); + } +} diff --git a/src/ServiceConnect.UnitTests/HealthChecks/HealthChecksBuilderExtensionsThirdPartyBusTests.cs b/src/ServiceConnect.UnitTests/HealthChecks/HealthChecksBuilderExtensionsThirdPartyBusTests.cs new file mode 100644 index 000000000..39e78213f --- /dev/null +++ b/src/ServiceConnect.UnitTests/HealthChecks/HealthChecksBuilderExtensionsThirdPartyBusTests.cs @@ -0,0 +1,100 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Diagnostics.HealthChecks; +using Microsoft.Extensions.Options; +using Moq; +using ServiceConnect.HealthChecks; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.HealthChecks; + +/// +/// Verifies that the parameterless-grace AddServiceConnectBus(name, busFactory, ...) +/// overload pulls from the service provider so the broker-cancelled +/// short-circuit fires for third-party implementations that don't +/// override the IsCancelledByBroker default-interface-method. Without that, a +/// permanent broker-cancellation on a custom bus would sit in the recovery grace window +/// indefinitely (the DIM returns ; the bus's IsConsuming +/// is false; recovery grace says "Healthy until age > window"). +/// +public class HealthChecksBuilderExtensionsThirdPartyBusTests +{ + private static HealthCheckRegistration GetRegistration(IServiceProvider sp, string name) + { + var options = sp.GetRequiredService>().Value; + return options.Registrations.First(r => r.Name == name); + } + + [Fact] + public async Task AddServiceConnectBus_FactoryOverload_ResolvesIConsumer_ForBrokerCancelShortCircuit() + { + // The bus is "not consuming" and a Mock with no IsCancelledByBroker setup + // returns the DIM default (false), modelling a third-party transport. A correctly- + // wired IConsumer in DI flips IsCancelledByBroker=true so the broker-cancel branch + // fires immediately even though the recovery-grace window has not elapsed. + var bus = new Mock(); + bus.SetupGet(b => b.IsConsuming).Returns(true); // first probe is Healthy + + var consumer = new Mock(); + consumer.SetupGet(c => c.IsCancelledByBroker).Returns(true); + + var services = new ServiceCollection(); + services.AddSingleton(bus.Object); + services.AddSingleton(consumer.Object); + services.AddHealthChecks() + .AddServiceConnectBus( + name: "bus", + busFactory: sp => sp.GetRequiredService()); + var sp = services.BuildServiceProvider(); + + var registration = GetRegistration(sp, "bus"); + var check = registration.Factory(sp); + var ctx = new HealthCheckContext { Registration = registration }; + + // Stamp a Healthy observation first so the grace window would otherwise apply on + // the next probe. + await check.CheckHealthAsync(ctx); + + // Now simulate the bus losing IsConsuming; the consumer signals broker-cancel. + bus.SetupGet(b => b.IsConsuming).Returns(false); + var result = await check.CheckHealthAsync(ctx); + + Assert.Equal(HealthStatus.Unhealthy, result.Status); + Assert.Contains("broker cancelled", result.Description, StringComparison.OrdinalIgnoreCase); + } + + [Fact] + public async Task AddServiceConnectBus_FactoryOverload_NoConsumerInDi_FallsBackToBusDimAndStaysInGrace() + { + // Without an IConsumer registered AND with a third-party IBus that doesn't override + // IsCancelledByBroker, the check has no broker-cancel signal and falls into the + // recovery grace window after a Healthy observation. This pins the documented + // behaviour: third-party hosts must register either an IConsumer or a custom IBus + // that overrides IsCancelledByBroker to get broker-cancel short-circuiting. + var bus = new Mock(); + bus.SetupGet(b => b.IsConsuming).Returns(true); + + var services = new ServiceCollection(); + services.AddSingleton(bus.Object); + // Intentionally no IConsumer. + services.AddHealthChecks() + .AddServiceConnectBus( + name: "bus", + busFactory: sp => sp.GetRequiredService()); + var sp = services.BuildServiceProvider(); + + var registration = GetRegistration(sp, "bus"); + var check = registration.Factory(sp); + var ctx = new HealthCheckContext { Registration = registration }; + + var first = await check.CheckHealthAsync(ctx); + Assert.Equal(HealthStatus.Healthy, first.Status); + + // Simulate the bus losing IsConsuming. Without a consumer signal AND with no DIM + // override, the check sits in grace and returns Healthy. + bus.SetupGet(b => b.IsConsuming).Returns(false); + var second = await check.CheckHealthAsync(ctx); + Assert.Equal(HealthStatus.Healthy, second.Status); + Assert.Contains("recovery grace", second.Description, StringComparison.OrdinalIgnoreCase); + } +} diff --git a/src/ServiceConnect.UnitTests/HealthChecks/MultiBusHealthCheckTests.cs b/src/ServiceConnect.UnitTests/HealthChecks/MultiBusHealthCheckTests.cs new file mode 100644 index 000000000..4772fee06 --- /dev/null +++ b/src/ServiceConnect.UnitTests/HealthChecks/MultiBusHealthCheckTests.cs @@ -0,0 +1,57 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Diagnostics.HealthChecks; +using Microsoft.Extensions.Options; +using Moq; +using ServiceConnect.HealthChecks; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.HealthChecks; + +public class MultiBusHealthCheckTests +{ + [Fact] + public async Task FactoryOverload_ResolvesViaFactory() + { + var bus = Mock.Of(b => b.IsConsuming == true); + var services = new ServiceCollection(); + services.AddHealthChecks().AddServiceConnectBus("custom", + sp => bus, + HealthStatus.Unhealthy); + + var sp = services.BuildServiceProvider(); + var options = sp.GetRequiredService>().Value; + var registration = options.Registrations.Single(r => r.Name == "custom"); + var check = (BusConsumingHealthCheck)registration.Factory(sp); + var result = await check.CheckHealthAsync(new HealthCheckContext { Registration = registration }); + + Assert.Equal(HealthStatus.Healthy, result.Status); + } + + [Fact] + public async Task KeyedOverload_ResolvesByKey_DistinctBuses() + { + var busA = Mock.Of(b => b.IsConsuming == true); + var busB = Mock.Of(b => b.IsConsuming == false); + + var services = new ServiceCollection(); + services.AddKeyedSingleton("A", busA); + services.AddKeyedSingleton("B", busB); + services.AddHealthChecks() + .AddServiceConnectBus("checkA", "A", HealthStatus.Unhealthy) + .AddServiceConnectBus("checkB", "B", HealthStatus.Unhealthy); + + var sp = services.BuildServiceProvider(); + var options = sp.GetRequiredService>().Value; + var regA = options.Registrations.Single(r => r.Name == "checkA"); + var regB = options.Registrations.Single(r => r.Name == "checkB"); + + var resultA = await ((BusConsumingHealthCheck)regA.Factory(sp)) + .CheckHealthAsync(new HealthCheckContext { Registration = regA }); + var resultB = await ((BusConsumingHealthCheck)regB.Factory(sp)) + .CheckHealthAsync(new HealthCheckContext { Registration = regB }); + + Assert.Equal(HealthStatus.Healthy, resultA.Status); + Assert.Equal(HealthStatus.Unhealthy, resultB.Status); + } +} diff --git a/src/ServiceConnect.UnitTests/HealthChecks/ProducerConnectionHealthCheckTests.cs b/src/ServiceConnect.UnitTests/HealthChecks/ProducerConnectionHealthCheckTests.cs new file mode 100644 index 000000000..6ded699ef --- /dev/null +++ b/src/ServiceConnect.UnitTests/HealthChecks/ProducerConnectionHealthCheckTests.cs @@ -0,0 +1,76 @@ +using Microsoft.Extensions.Diagnostics.HealthChecks; +using Moq; +using ServiceConnect.HealthChecks; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.HealthChecks; + +public class ProducerConnectionHealthCheckTests +{ + private readonly Mock _producer = new(); + + private ProducerConnectionHealthCheck CreateSut() => new(_producer.Object); + + [Fact] + public async Task CheckHealthAsync_ProducerHealthy_ReturnsHealthy() + { + // The check reads the (IsHealthy, HasAttemptedConnection) pair as a single + // snapshot via GetHealthSnapshot. Set up the snapshot directly rather than the + // individual properties. + _producer.Setup(p => p.GetHealthSnapshot()) + .Returns(new ProducerHealthSnapshot(IsHealthy: true, HasAttemptedConnection: true)); + + var result = await CreateSut().CheckHealthAsync(new HealthCheckContext()); + + Assert.Equal(HealthStatus.Healthy, result.Status); + Assert.Contains("open", result.Description, StringComparison.OrdinalIgnoreCase); + } + + [Fact] + public async Task CheckHealthAsync_ProducerNotHealthy_ReturnsUnhealthy() + { + // HasAttemptedConnection = true: producer tried and failed, not just lazy. + _producer.Setup(p => p.GetHealthSnapshot()) + .Returns(new ProducerHealthSnapshot(IsHealthy: false, HasAttemptedConnection: true)); + + var ctx = new HealthCheckContext + { + Registration = new HealthCheckRegistration("x", _ => CreateSut(), HealthStatus.Unhealthy, null), + }; + var result = await CreateSut().CheckHealthAsync(ctx); + + Assert.Equal(HealthStatus.Unhealthy, result.Status); + Assert.Contains("closed", result.Description, StringComparison.OrdinalIgnoreCase); + } + + [Fact] + public async Task CheckHealthAsync_ProducerNotHealthy_HonoursDegradedFailureStatus() + { + // HasAttemptedConnection = true: producer tried and failed, not just lazy. + _producer.Setup(p => p.GetHealthSnapshot()) + .Returns(new ProducerHealthSnapshot(IsHealthy: false, HasAttemptedConnection: true)); + + var ctx = new HealthCheckContext + { + Registration = new HealthCheckRegistration("x", _ => CreateSut(), HealthStatus.Degraded, null), + }; + var result = await CreateSut().CheckHealthAsync(ctx); + + Assert.Equal(HealthStatus.Degraded, result.Status); + } + + [Fact] + public async Task CheckHealthAsync_ProducerNotHealthy_NoRegistration_DefaultsToUnhealthy() + { + // HasAttemptedConnection = true: producer tried and failed, not just lazy. + _producer.Setup(p => p.GetHealthSnapshot()) + .Returns(new ProducerHealthSnapshot(IsHealthy: false, HasAttemptedConnection: true)); + + // HealthCheckContext with null Registration — exercises the + // `context.Registration?.FailureStatus ?? HealthStatus.Unhealthy` fallback path. + var result = await CreateSut().CheckHealthAsync(new HealthCheckContext()); + + Assert.Equal(HealthStatus.Unhealthy, result.Status); + } +} diff --git a/src/ServiceConnect.UnitTests/HealthChecks/ProducerHealthSnapshotRaceTests.cs b/src/ServiceConnect.UnitTests/HealthChecks/ProducerHealthSnapshotRaceTests.cs new file mode 100644 index 000000000..cea994cc3 --- /dev/null +++ b/src/ServiceConnect.UnitTests/HealthChecks/ProducerHealthSnapshotRaceTests.cs @@ -0,0 +1,103 @@ +using Microsoft.Extensions.Diagnostics.HealthChecks; +using Moq; +using ServiceConnect.HealthChecks; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.HealthChecks; + +public class ProducerHealthSnapshotRaceTests +{ + [Fact] + public async Task CheckHealthAsync_UsesSnapshot_NotIndividualPropertyReads() + { + // Construct a producer mock where IsHealthy and HasAttemptedConnection return + // values that would surface the race (IsHealthy=false, HasAttemptedConnection=true) + // when read separately, but GetHealthSnapshot returns a consistent pair. + var producer = new Mock(); + producer.Setup(p => p.IsHealthy).Returns(false); + producer.Setup(p => p.HasAttemptedConnection).Returns(true); + producer.Setup(p => p.GetHealthSnapshot()) + .Returns(new ProducerHealthSnapshot(IsHealthy: true, HasAttemptedConnection: true)); + + var check = new ProducerConnectionHealthCheck(producer.Object); + var ctx = new HealthCheckContext + { + Registration = new HealthCheckRegistration("p", check, HealthStatus.Unhealthy, null), + }; + var result = await check.CheckHealthAsync(ctx); + + // Healthy because the snapshot reports healthy; if the check were reading the + // individual properties it would have reported Unhealthy. + Assert.Equal(HealthStatus.Healthy, result.Status); + producer.Verify(p => p.GetHealthSnapshot(), Times.AtLeastOnce); + producer.VerifyGet(p => p.IsHealthy, Times.Never); + producer.VerifyGet(p => p.HasAttemptedConnection, Times.Never); + } + + [Fact] + public async Task CheckHealthAsync_LazyState_ReturnsHealthy() + { + var producer = new Mock(); + producer.Setup(p => p.GetHealthSnapshot()) + .Returns(new ProducerHealthSnapshot(IsHealthy: false, HasAttemptedConnection: false)); + + var check = new ProducerConnectionHealthCheck(producer.Object); + var ctx = new HealthCheckContext + { + Registration = new HealthCheckRegistration("p", check, HealthStatus.Unhealthy, null), + }; + var result = await check.CheckHealthAsync(ctx); + + Assert.Equal(HealthStatus.Healthy, result.Status); + Assert.Contains("not yet attempted", result.Description, StringComparison.OrdinalIgnoreCase); + } + + [Fact] + public async Task CheckHealthAsync_AttemptedAndFailed_ReturnsUnhealthy() + { + var producer = new Mock(); + producer.Setup(p => p.GetHealthSnapshot()) + .Returns(new ProducerHealthSnapshot(IsHealthy: false, HasAttemptedConnection: true)); + + var check = new ProducerConnectionHealthCheck(producer.Object); + var ctx = new HealthCheckContext + { + Registration = new HealthCheckRegistration("p", check, HealthStatus.Unhealthy, null), + }; + var result = await check.CheckHealthAsync(ctx); + + Assert.Equal(HealthStatus.Unhealthy, result.Status); + } + + /// + /// Sanity: third-party IProducer impls that don't override GetHealthSnapshot get + /// the default impl which reads IsHealthy+HasAttemptedConnection as two separate + /// reads — those impls retain the torn-read race; first-party (RabbitMQ) producers + /// override to return an atomic snapshot. + /// + [Fact] + public void IProducerDefaultImplementation_DerivesSnapshotFromTwoReads() + { + IProducer producer = new StubProducer { IsHealthy = true, HasAttemptedConnection = true }; + var snapshot = producer.GetHealthSnapshot(); + Assert.True(snapshot.IsHealthy); + Assert.True(snapshot.HasAttemptedConnection); + } + + /// + /// Minimal IProducer stub for default-interface-method probing. Other members + /// throw because they're not exercised by these tests. + /// + private sealed class StubProducer : IProducer + { + public bool IsHealthy { get; init; } + public bool HasAttemptedConnection { get; init; } + public long MaximumMessageSize => 0; + public Task PublishAsync(Type type, ReadOnlyMemory body, IReadOnlyDictionary? headers = null, CancellationToken cancellationToken = default) => throw new NotSupportedException(); + public Task SendAsync(Type type, ReadOnlyMemory body, IReadOnlyDictionary? headers = null, CancellationToken cancellationToken = default) => throw new NotSupportedException(); + public Task SendAsync(string endPoint, Type type, ReadOnlyMemory body, IReadOnlyDictionary? headers = null, CancellationToken cancellationToken = default) => throw new NotSupportedException(); + public Task SendBytesAsync(string endPoint, Type type, ReadOnlyMemory packet, IReadOnlyDictionary? headers = null, CancellationToken cancellationToken = default) => throw new NotSupportedException(); + public ValueTask DisposeAsync() => ValueTask.CompletedTask; + } +} diff --git a/src/ServiceConnect.UnitTests/HealthChecks/ProducerLazyConnectTests.cs b/src/ServiceConnect.UnitTests/HealthChecks/ProducerLazyConnectTests.cs new file mode 100644 index 000000000..eab3b283d --- /dev/null +++ b/src/ServiceConnect.UnitTests/HealthChecks/ProducerLazyConnectTests.cs @@ -0,0 +1,52 @@ +using Microsoft.Extensions.Diagnostics.HealthChecks; +using Moq; +using ServiceConnect.HealthChecks; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.HealthChecks; + +public class ProducerLazyConnectTests +{ + // ProducerConnectionHealthCheck reads the (IsHealthy, HasAttemptedConnection) pair + // atomically via IProducer.GetHealthSnapshot. Mocks set up the snapshot directly so + // the test exercises the snapshot contract rather than the (unused) individual + // property reads. + + [Fact] + public async Task NotYetAttempted_ReturnsHealthy() + { + var producer = Mock.Of(p => + p.GetHealthSnapshot() == new ProducerHealthSnapshot(false, false)); + var check = new ProducerConnectionHealthCheck(producer); + + var result = await check.CheckHealthAsync(new HealthCheckContext(), CancellationToken.None); + + Assert.Equal(HealthStatus.Healthy, result.Status); + Assert.Contains("not yet attempted", result.Description, StringComparison.OrdinalIgnoreCase); + } + + [Fact] + public async Task AttemptedAndDisconnected_ReturnsUnhealthy() + { + var producer = Mock.Of(p => + p.GetHealthSnapshot() == new ProducerHealthSnapshot(false, true)); + var check = new ProducerConnectionHealthCheck(producer); + + var result = await check.CheckHealthAsync(new HealthCheckContext(), CancellationToken.None); + + Assert.Equal(HealthStatus.Unhealthy, result.Status); + } + + [Fact] + public async Task Connected_ReturnsHealthy() + { + var producer = Mock.Of(p => + p.GetHealthSnapshot() == new ProducerHealthSnapshot(true, true)); + var check = new ProducerConnectionHealthCheck(producer); + + var result = await check.CheckHealthAsync(new HealthCheckContext(), CancellationToken.None); + + Assert.Equal(HealthStatus.Healthy, result.Status); + } +} diff --git a/src/ServiceConnect.UnitTests/InMemoryAggregatorPersistorTest.cs b/src/ServiceConnect.UnitTests/InMemoryAggregatorPersistorTest.cs deleted file mode 100644 index d40a1eceb..000000000 --- a/src/ServiceConnect.UnitTests/InMemoryAggregatorPersistorTest.cs +++ /dev/null @@ -1,41 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Linq; -using System.Threading.Tasks; -using ServiceConnect.Interfaces; -using ServiceConnect.Persistance.InMemory; -using Xunit; - -namespace ServiceConnect.UnitTests -{ - public class InMemoryAggregatorPersistorTest - { - [Fact] - public void ShouldInsertData() - { - // Arrange - IAggregatorPersistor aggregatorPersistor = new InMemoryAggregatorPersistor(string.Empty, string.Empty, string.Empty); - - // Act - aggregatorPersistor.InsertData("TestData", "key1"); - - // Assert - Assert.Equal("TestData", aggregatorPersistor.GetData("key1")[0]); - } - - [Fact] - public void ShouldDeleteData() - { - // Arrange - var corrId = Guid.NewGuid(); - IAggregatorPersistor aggregatorPersistor = new InMemoryAggregatorPersistor(string.Empty, string.Empty, string.Empty); - aggregatorPersistor.InsertData(new Message(corrId), "key1"); - - // Act - aggregatorPersistor.RemoveData("key1", corrId); - - // Assert - Assert.Equal(0, aggregatorPersistor.GetData("key1").Count); - } - } -} diff --git a/src/ServiceConnect.UnitTests/InMemoryProcessManagerFinderTests.cs b/src/ServiceConnect.UnitTests/InMemoryProcessManagerFinderTests.cs deleted file mode 100644 index 3cf143ebb..000000000 --- a/src/ServiceConnect.UnitTests/InMemoryProcessManagerFinderTests.cs +++ /dev/null @@ -1,145 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using Moq; -using ServiceConnect.Core; -using ServiceConnect.Interfaces; -using ServiceConnect.Persistance.InMemory; -using Xunit; - -namespace ServiceConnect.UnitTests -{ - public class TestData : IProcessManagerData - { - public Guid CorrelationId { get; set; } - public string Name { get; set; } - } - - public class InMemoryProcessManagerFinderTests - { - readonly Guid _correlationId = Guid.NewGuid(); - private readonly IProcessManagerPropertyMapper _mapper; - - public InMemoryProcessManagerFinderTests() - { - _mapper = new ProcessManagerPropertyMapper(); - _mapper.ConfigureMapping(m => m.CorrelationId, pm => pm.CorrelationId); - } - - [Fact] - public void ShouldInsertData() - { - // Arrange - IProcessManagerData data = new TestData {CorrelationId = _correlationId, Name = "TestData"}; - IProcessManagerFinder processManagerFinder = new InMemoryProcessManagerFinder(string.Empty, string.Empty); - - // Act - processManagerFinder.InsertData(data); - - // Assert - Assert.Equal("TestData", processManagerFinder.FindData(_mapper, new Message(_correlationId)).Data.Name); - } - - [Fact] - public void ShouldThrowWhenInsertingDataWithExistingId() - { - // Arrange - IProcessManagerData data = new TestData { CorrelationId = _correlationId, Name = "TestData" }; - IProcessManagerData dataWithDuplicateId = new TestData { CorrelationId = _correlationId, Name = "TestDataWithDuplicateId" }; - IProcessManagerFinder processManagerFinder = new InMemoryProcessManagerFinder(string.Empty, string.Empty); - processManagerFinder.InsertData(data); - - // Act / Assert - Assert.Throws(() => processManagerFinder.InsertData(dataWithDuplicateId)); - } - - [Fact] - public void ShouldUpdateData() - { - // Arrange - IProcessManagerData data = new TestData { CorrelationId = _correlationId, Name = "TestData" }; - IProcessManagerData dataUpdated = new TestData { CorrelationId = _correlationId, Name = "TestDataUpdated" }; - IProcessManagerFinder processManagerFinder = new InMemoryProcessManagerFinder(string.Empty, string.Empty); - processManagerFinder.InsertData(data); - - // Act - processManagerFinder.UpdateData(new MemoryData { Data = dataUpdated, Version = 1}); - - // Assert - Assert.Equal("TestDataUpdated", processManagerFinder.FindData(_mapper, new Message(_correlationId)).Data.Name); - } - - [Fact] - public void ShouldThrowWhenUpdatingDataThatDoesNotExist() - { - // Arrange - IProcessManagerData data = new TestData { CorrelationId = _correlationId, Name = "TestData" }; - IProcessManagerFinder processManagerFinder = new InMemoryProcessManagerFinder(string.Empty, string.Empty); - - // Act / Assert - Assert.Throws(() => processManagerFinder.UpdateData(new MemoryData { Data = data })); - } - - [Fact] - public void ShouldThrowWhenUpdatingTwoInstancesOfSameDataAtTheSameTime() - { - // Arrange - IProcessManagerData data1 = new TestData { CorrelationId = _correlationId, Name = "TestData1" }; - IProcessManagerFinder processManagerFinder = new InMemoryProcessManagerFinder(string.Empty, string.Empty); - processManagerFinder.InsertData(data1); - - var foundData1 = (MemoryData) processManagerFinder.FindData(_mapper, new Message(_correlationId)); - var foundData2 = (MemoryData) processManagerFinder.FindData(_mapper, new Message(_correlationId)); - - var foundData1Temp = new MemoryData { Data = foundData1.Data, Version = foundData1.Version}; - var foundData2Temp = new MemoryData { Data = foundData2.Data, Version = foundData2.Version }; - - processManagerFinder.UpdateData(foundData1Temp); // first update should be fine - - // Act / Assert - Assert.Throws(() => processManagerFinder.UpdateData(foundData2Temp)); // second update should fail - } - - [Fact] - public void ShouldDeleteData() - { - // Arrange - IProcessManagerData data = new TestData { CorrelationId = _correlationId, Name = "TestData" }; - IProcessManagerFinder processManagerFinder = new InMemoryProcessManagerFinder(string.Empty, string.Empty); - processManagerFinder.InsertData(data); - - // Act - processManagerFinder.DeleteData(new MemoryData { Data = data }); - - // Assert - Assert.Null(processManagerFinder.FindData(_mapper, new Message(_correlationId))); - } - - [Fact] - public void ShouldReturnNullWhenDataNotFound() - { - // Arrange - IProcessManagerFinder processManagerFinder = new InMemoryProcessManagerFinder(string.Empty, string.Empty); - - // Act - var result = processManagerFinder.FindData(_mapper, new Message(_correlationId)); - - // Assert - Assert.Null(result); - } - } -} diff --git a/src/ServiceConnect.UnitTests/MessageHandlerProcessorTest.cs b/src/ServiceConnect.UnitTests/MessageHandlerProcessorTest.cs deleted file mode 100644 index 073c16cb1..000000000 --- a/src/ServiceConnect.UnitTests/MessageHandlerProcessorTest.cs +++ /dev/null @@ -1,267 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; -using System.Linq; -using System.Text; -using Moq; -using Newtonsoft.Json; -using ServiceConnect.Core; -using ServiceConnect.Interfaces; -using ServiceConnect.UnitTests.Fakes.Handlers; -using ServiceConnect.UnitTests.Fakes.Messages; -using Xunit; - -namespace ServiceConnect.UnitTests -{ - public class MessageHandlerProcessorTest - { - private readonly Mock _mockContainer; - private Mock _mockLogger; - - public MessageHandlerProcessorTest() - { - _mockContainer = new Mock(); - _mockLogger = new Mock(); - } - - [Fact] - public void ProcessMessageShouldGetTheCorrectHandlerTypesFromContainer() - { - // Arrange - var messageProcessor = new MessageHandlerProcessor(_mockContainer.Object, _mockLogger.Object); - - // Act - messageProcessor.ProcessMessage(JsonConvert.SerializeObject(new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim Watson" - }), null).GetAwaiter().GetResult(); - - // Assert - _mockContainer.Verify(x => x.GetHandlerTypes(It.Is(y => y.Contains(typeof(IMessageHandler)) && y.Contains(typeof(IAsyncMessageHandler)))), Times.Once()); - } - - [Fact] - public void ShouldExecuteTheCorrectHandlers() - { - // Arrange - var messageProcessor = new MessageHandlerProcessor(_mockContainer.Object, _mockLogger.Object); - - var message1HandlerReference = new HandlerReference - { - HandlerType = typeof (FakeHandler1), - MessageType = typeof (FakeMessage1) - }; - - _mockContainer.Setup(x => x.GetHandlerTypes(typeof(IMessageHandler), typeof(IAsyncMessageHandler))).Returns(new List - { - message1HandlerReference - }); - - var fakeHandler = new FakeHandler1(); - _mockContainer.Setup(x => x.GetInstance(typeof (FakeHandler1))).Returns(fakeHandler); - - // Act - var message1 = new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim Watson" - }; - messageProcessor.ProcessMessage(JsonConvert.SerializeObject(message1), null).GetAwaiter().GetResult(); ; - - var message2 = new FakeMessage2(Guid.NewGuid()) - { - DisplayName = "Tim Watson" - }; - - messageProcessor.ProcessMessage(JsonConvert.SerializeObject(message2), null).GetAwaiter().GetResult(); ; - - // Assert - Assert.Equal(message1.CorrelationId, fakeHandler.Command.CorrelationId); - Assert.Equal(message1.Username, fakeHandler.Command.Username); - _mockContainer.Verify(x => x.GetInstance(typeof (FakeHandler2)), Times.Never); - } - - [Fact] - public void ShouldExecuteTheCorrectBaseMessageHandlers() - { - // Arrange - var messageProcessor = new MessageHandlerProcessor(_mockContainer.Object, _mockLogger.Object); - - var message1HandlerReference = new HandlerReference - { - HandlerType = typeof(FakeBaseMessageHandler1), - MessageType = typeof(FakeBaseMessage1) - }; - - _mockContainer.Setup(x => x.GetHandlerTypes(typeof(IMessageHandler), typeof(IAsyncMessageHandler))).Returns(new List - { - message1HandlerReference - }); - - var fakeHandler = new FakeBaseMessageHandler1(); - _mockContainer.Setup(x => x.GetInstance(typeof(FakeBaseMessageHandler1))).Returns(fakeHandler); - - // Act - var message = new FakeDerivedMessage1(Guid.NewGuid()) - { - Status = "Test" - }; - - messageProcessor.ProcessMessage(JsonConvert.SerializeObject(message), null).GetAwaiter().GetResult(); ; - - // Assert - Assert.Equal(message.CorrelationId, fakeHandler.Command.CorrelationId); - Assert.Equal(message.Username, fakeHandler.Command.Username); - _mockContainer.Verify(x => x.GetInstance(typeof(FakeBaseMessageHandler1)), Times.Once); - } - - [Fact] - public void ShouldExecuteTheCorrectHandlerWithRoutingKeyAttribute() - { - // Arrange - var messageProcessor = new MessageHandlerProcessor(_mockContainer.Object, _mockLogger.Object); - - var message1HandlerReference = new HandlerReference - { - HandlerType = typeof(FakeHandlerWithAttr1), - MessageType = typeof(FakeMessage1), - RoutingKeys = new List { "Test"} - }; - - _mockContainer.Setup(x => x.GetHandlerTypes(typeof(IMessageHandler), typeof(IAsyncMessageHandler))).Returns(new List - { - message1HandlerReference - }); - - var fakeHandler = new FakeHandlerWithAttr1(); - _mockContainer.Setup(x => x.GetInstance(typeof(FakeHandlerWithAttr1))).Returns(fakeHandler); - - // Act - var message1 = new FakeMessage1(Guid.NewGuid()) - { - Username = "Jakub Pachansky" - }; - messageProcessor.ProcessMessage(JsonConvert.SerializeObject(message1), - new ConsumeContext {Headers = new Dictionary {{"RoutingKey", Encoding.ASCII.GetBytes("Test") }}}).GetAwaiter().GetResult(); ; - - // Assert - Assert.Equal(message1.CorrelationId, fakeHandler.Command.CorrelationId); - Assert.Equal(message1.Username, fakeHandler.Command.Username); - _mockContainer.Verify(x => x.GetInstance(typeof(FakeHandlerWithAttr1)), Times.Once); - } - - [Fact] - public void ShouldExecuteTheCorrectHandlerWithCatchAllRoutingKeyAttribute() - { - // Arrange - var messageProcessor = new MessageHandlerProcessor(_mockContainer.Object, _mockLogger.Object); - - var message1HandlerReference = new HandlerReference - { - HandlerType = typeof(FakeHandlerWithAttr1), - MessageType = typeof(FakeMessage1), - RoutingKeys = new List { "#" } // matches any routing key - }; - - _mockContainer.Setup(x => x.GetHandlerTypes(typeof(IMessageHandler), typeof(IAsyncMessageHandler))).Returns(new List - { - message1HandlerReference - }); - - var fakeHandler = new FakeHandlerWithAttr1(); - _mockContainer.Setup(x => x.GetInstance(typeof(FakeHandlerWithAttr1))).Returns(fakeHandler); - - // Act - var message1 = new FakeMessage1(Guid.NewGuid()) - { - Username = "Jakub Pachansky" - }; - messageProcessor.ProcessMessage(JsonConvert.SerializeObject(message1), - new ConsumeContext { Headers = new Dictionary { { "RoutingKey", Encoding.ASCII.GetBytes("SomeRandomRoutingKey") } } }).GetAwaiter().GetResult(); ; - - // Assert - Assert.Equal(message1.CorrelationId, fakeHandler.Command.CorrelationId); - Assert.Equal(message1.Username, fakeHandler.Command.Username); - _mockContainer.Verify(x => x.GetInstance(typeof(FakeHandlerWithAttr1)), Times.Once); - } - - [Fact] - public void ShouldExecuteTheCorrectHandlerWithMultipleRoutingKeyAttributes() - { - // Arrange - var messageProcessor = new MessageHandlerProcessor(_mockContainer.Object, _mockLogger.Object); - - var message1HandlerReference = new HandlerReference - { - HandlerType = typeof(FakeHandlerWithAttr2), - MessageType = typeof(FakeMessage1), - RoutingKeys = new List { "Test1", "Test2" } - }; - - _mockContainer.Setup(x => x.GetHandlerTypes(typeof(IMessageHandler), typeof(IAsyncMessageHandler))).Returns(new List - { - message1HandlerReference - }); - - var fakeHandler = new FakeHandlerWithAttr2(); - _mockContainer.Setup(x => x.GetInstance(typeof(FakeHandlerWithAttr2))).Returns(fakeHandler); - - // Act - var message1 = new FakeMessage1(Guid.NewGuid()) - { - Username = "Jakub Pachansky" - }; - messageProcessor.ProcessMessage(JsonConvert.SerializeObject(message1), - new ConsumeContext { Headers = new Dictionary {{"RoutingKey", Encoding.ASCII.GetBytes("Test2")}}}).GetAwaiter().GetResult(); ; - - // Assert - Assert.Equal(message1.CorrelationId, fakeHandler.Command.CorrelationId); - Assert.Equal(message1.Username, fakeHandler.Command.Username); - _mockContainer.Verify(x => x.GetInstance(typeof(FakeHandlerWithAttr2)), Times.Once); - } - - [Fact] - public void ShouldExecuteAsyncHandler() - { - // Arrange - var messageProcessor = new MessageHandlerProcessor(_mockContainer.Object, _mockLogger.Object); - - var message1HandlerReference = new HandlerReference - { - HandlerType = typeof(FakeAsyncHandler), - MessageType = typeof(FakeMessage1) - }; - - _mockContainer.Setup(x => x.GetHandlerTypes(typeof(IMessageHandler), typeof(IAsyncMessageHandler))).Returns(new List - { - message1HandlerReference - }); - - var fakeHandler = new FakeAsyncHandler(); - _mockContainer.Setup(x => x.GetInstance(typeof(FakeAsyncHandler))).Returns(fakeHandler); - - // Act - var message1 = new FakeMessage1(Guid.NewGuid()); - - messageProcessor.ProcessMessage(JsonConvert.SerializeObject(message1), - new ConsumeContext { Headers = new Dictionary() }).GetAwaiter().GetResult(); ; - - // Assert - Assert.True(fakeHandler.Executed); - } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.UnitTests/Messages/MessageInitTests.cs b/src/ServiceConnect.UnitTests/Messages/MessageInitTests.cs new file mode 100644 index 000000000..637133fd0 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Messages/MessageInitTests.cs @@ -0,0 +1,27 @@ +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.Messages; + +public class MessageInitTests +{ + [Fact] + public void CorrelationId_HasInitAccessor_NotPrivateSet() + { + // Compile-time guard: the setter must be init-only. + var prop = typeof(Message).GetProperty(nameof(Message.CorrelationId)); + Assert.NotNull(prop); + var setter = prop!.SetMethod!; + Assert.True(setter.ReturnParameter.GetRequiredCustomModifiers() + .Any(m => m.FullName == "System.Runtime.CompilerServices.IsExternalInit"), + "Message.CorrelationId setter must be init-only (System.Runtime.CompilerServices.IsExternalInit modreq)."); + } + + [Fact] + public void Message_ConstructionAssignsCorrelationId() + { + var id = Guid.NewGuid(); + var msg = new Message(id); + Assert.Equal(id, msg.CorrelationId); + } +} diff --git a/src/ServiceConnect.UnitTests/ModuleInit.cs b/src/ServiceConnect.UnitTests/ModuleInit.cs new file mode 100644 index 000000000..89090a958 --- /dev/null +++ b/src/ServiceConnect.UnitTests/ModuleInit.cs @@ -0,0 +1,59 @@ +using System.Runtime.CompilerServices; +using MongoDB.Bson; +using MongoDB.Bson.Serialization; +using MongoDB.Bson.Serialization.Serializers; + +namespace ServiceConnect.UnitTests; + +/// +/// Bootstraps the MongoDB BSON globals exactly once at assembly load — before any test +/// class touches a Mongo persistor or the in-memory persistors' BSON-backed DeepClone. +/// +/// +/// +/// MongoDB.Driver 3.x always operates in the V3 GuidRepresentation regime, so every Guid +/// member honours the per-serializer representation. We still register a Standard +/// GuidSerializer here so that stored Guid properties use subtype 4 (UUID per RFC) +/// — matching the serializer the production persistors register and the filter literals +/// built via x => x.Data.CorrelationId compile against. +/// +/// +/// Registering at module init stops the in-memory persistors' DeepClone path +/// (which lazily builds a BsonClassMap<Message> on first use) from caching a +/// class map with the wrong Guid representation. Once a class map is cached, later +/// changes to the registry don't update it — so tests must agree on the registry state +/// before any class map is built, and the only safe place to do that is module init. +/// +/// +/// GuidSerializerRegistrationTests resets the static _guidSerializerRegistered +/// flag inside +/// via reflection to exercise the once-only guard. With the registry pre-populated here, +/// the re-registration call on the second pass is a compatible no-op (the catch block in +/// EnsureGuidSerializerRegistered succeeds because the already-registered serializer +/// is the same Standard GuidSerializer). +/// +/// +internal static class ModuleInit +{ + [ModuleInitializer] + internal static void Initialize() + { + // Register Standard Guid serializer before any BsonClassMap is auto-built. + // Once a class map is cached with a different serializer, later registration + // doesn't update it — so any test that touches a Mongo-mapped type or builds + // a class map via DeepClone first would freeze the wrong serializer into the + // map. This call wins the registration race against test code by virtue of + // happening at module init, before any test discovery completes. + try + { + BsonSerializer.RegisterSerializer(typeof(Guid), new GuidSerializer(GuidRepresentation.Standard)); + } + catch + { + // Already registered by another component (e.g., a referenced assembly's own + // ModuleInitializer). Treat as a no-op — the Mongo persistor's + // EnsureGuidSerializerRegistered will reject it explicitly later if the + // existing registration is incompatible. + } + } +} diff --git a/src/ServiceConnect.UnitTests/MongoBsonSerialCollection.cs b/src/ServiceConnect.UnitTests/MongoBsonSerialCollection.cs new file mode 100644 index 000000000..bf1b8fca2 --- /dev/null +++ b/src/ServiceConnect.UnitTests/MongoBsonSerialCollection.cs @@ -0,0 +1,22 @@ +using Xunit; + +namespace ServiceConnect.UnitTests; + +/// +/// xUnit collection for tests that touch the global BSON serializer registry indirectly via +/// MongoDbPersistenceExtensions.EnsureGuidSerializerRegistered — i.e., any test that +/// constructs MongoClientFactory, MongoDbAggregatorPersistor, +/// MongoDbProcessManagerFinder, MongoDbTimeoutStore, or invokes the registrar +/// directly. The once-only guard test in GuidSerializerRegistrationTests resets the +/// module-private _guidSerializerRegistered flag via reflection to exercise the +/// short-circuit contract; while the flag is briefly zero, sibling tests racing through +/// BsonSerializer.RegisterSerializer on a parallel thread observe a registered serializer +/// and throw BsonSerializationException. Forcing serial execution within this collection +/// keeps the registry quiet for the duration of the reset/re-register cycle. Non-Mongo tests +/// continue to parallelize freely. +/// +[CollectionDefinition(Name, DisableParallelization = true)] +public sealed class MongoBsonSerialCollection +{ + public const string Name = "Mongo Bson serial"; +} diff --git a/src/ServiceConnect.UnitTests/Options/RequestOptionsTests.cs b/src/ServiceConnect.UnitTests/Options/RequestOptionsTests.cs new file mode 100644 index 000000000..e151e06c1 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Options/RequestOptionsTests.cs @@ -0,0 +1,59 @@ +using System.Linq; +using System.Reflection; +using ServiceConnect.Interfaces.Options; +using Xunit; + +namespace ServiceConnect.UnitTests.Options; + +public class RequestOptionsShapeTests +{ + [Fact] + public void RequestOptions_IsReadonlyRecordStruct() + { + var t = typeof(RequestOptions); + Assert.True(t.IsValueType, "RequestOptions must be a value type (record struct)."); + Assert.True( + t.GetCustomAttributesData().Any(a => a.AttributeType.Name == "IsReadOnlyAttribute"), + "RequestOptions must be declared 'readonly'."); + } + + [Fact] + public void RequestOptions_AllSettersAreInitOnly() + { + foreach (var p in typeof(RequestOptions).GetProperties()) + { + var setter = p.GetSetMethod(nonPublic: true); + if (setter is null) + { + continue; + } + // init-only setters carry the IsExternalInit modreq. + Assert.Contains( + setter.ReturnParameter.GetRequiredCustomModifiers(), + m => m.Name == "IsExternalInit"); + } + } + + [Fact] + public void RequestOptions_Default_HasDefaultTimeout() + { + Assert.Equal(RequestOptions.DefaultTimeoutMs, RequestOptions.Default.Timeout); + } + + [Fact] + public void Default_HasNonZeroTimeout() + { + Assert.Equal(RequestOptions.DefaultTimeoutMs, RequestOptions.Default.Timeout); + Assert.True(RequestOptions.Default.Timeout > 0); + } + + [Fact] + public void DefaultStruct_HasZeroTimeout_DocumentingTheTrap() + { + // Documents the language-level behaviour the ValidateOptions guard exists to catch: + // default(RequestOptions) skips the parameterless ctor and leaves Timeout=0. +#pragma warning disable IDE0034 // explicit form documents the default(T) trap intentionally + Assert.Equal(0, default(RequestOptions).Timeout); +#pragma warning restore IDE0034 + } +} diff --git a/src/ServiceConnect.UnitTests/Options/SendOptionsTests.cs b/src/ServiceConnect.UnitTests/Options/SendOptionsTests.cs new file mode 100644 index 000000000..1625e6ca1 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Options/SendOptionsTests.cs @@ -0,0 +1,25 @@ +using ServiceConnect.Interfaces.Options; +using Xunit; + +namespace ServiceConnect.UnitTests.Options; + +public class SendOptionsShapeTests +{ + [Fact] + public void EndPoint_IsNullableString() + { + // EndPoints (plural) was removed; single-destination routing uses EndPoint. + // Fan-out callers must use IBus.SendToManyAsync instead. + Assert.Equal( + typeof(string), + Nullable.GetUnderlyingType(typeof(SendOptions).GetProperty("EndPoint")!.PropertyType) + ?? typeof(SendOptions).GetProperty("EndPoint")!.PropertyType); + } + + [Fact] + public void EndPoints_PropertyDoesNotExist() + { + // SendOptions.EndPoints was removed in favour of IBus.SendToManyAsync. + Assert.Null(typeof(SendOptions).GetProperty("EndPoints")); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/CacheProviderMechanicalFixesTests.cs b/src/ServiceConnect.UnitTests/Persistence/CacheProviderMechanicalFixesTests.cs new file mode 100644 index 000000000..032b340f3 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/CacheProviderMechanicalFixesTests.cs @@ -0,0 +1,40 @@ +using Microsoft.Extensions.Time.Testing; +using ServiceConnect.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence; + +public class CacheProviderMechanicalFixesTests +{ + [Fact] + public void Add_AbsoluteExpiryInPast_ThrowsArgumentOutOfRange() + { + var clock = new FakeTimeProvider(new DateTimeOffset(2026, 1, 1, 0, 0, 0, TimeSpan.Zero)); + var cache = new CacheProvider(clock); + + var pastTime = clock.GetUtcNow() - TimeSpan.FromMinutes(1); + Assert.Throws(() => + cache.Add("k", "v", pastTime)); + } + + [Fact] + public void TryPurgeItem_AfterDispose_DoesNotThrow() + { + // Schedule a key with a short timeout, dispose the cache, advance the clock — + // the timer callback path must NOT escape an ObjectDisposedException. + // FakeTimeProvider.Advance fires timer callbacks synchronously on the calling thread + // before returning. This is verified by CacheProviderTryGetTests.TryGet_AfterAbsoluteExpiry_ReturnsFalse, + // which asserts key removal is complete immediately after Advance with no async wait. + // If that guarantee were ever broken by a library update, this test would become a false positive. + var clock = new FakeTimeProvider(new DateTimeOffset(2026, 1, 1, 0, 0, 0, TimeSpan.Zero)); + var cache = new CacheProvider(clock); + + cache.Add("k", "v", TimeSpan.FromSeconds(1), CacheItemPriority.Normal); + cache.Dispose(); + + // With the dispose-race catch in place the callback's Remove call is swallowed. + clock.Advance(TimeSpan.FromSeconds(2)); + + // No assertion needed; the test passes if no exception escapes. + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/CacheProviderTryGetTests.cs b/src/ServiceConnect.UnitTests/Persistence/CacheProviderTryGetTests.cs new file mode 100644 index 000000000..0a2dfc3a8 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/CacheProviderTryGetTests.cs @@ -0,0 +1,62 @@ +using Microsoft.Extensions.Time.Testing; +using ServiceConnect.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence; + +public class CacheProviderTryGetTests +{ + [Fact] + public void TryGet_KeyAbsent_ReturnsFalseAndDefault() + { + var cache = new CacheProvider(new FakeTimeProvider()); + var found = cache.TryGet("missing", out var value); + Assert.False(found); + Assert.Null(value); + } + + [Fact] + public void TryGet_KeyPresent_ReturnsTrueAndValue() + { + var cache = new CacheProvider(new FakeTimeProvider()); + cache.Add("k", "v", CacheItemPriority.Normal); + var found = cache.TryGet("k", out var value); + Assert.True(found); + Assert.Equal("v", value); + } + + [Fact] + public void TryGet_KeyPresentWithNullValue_ReturnsTrueAndNull() + { + var cache = new CacheProvider(new FakeTimeProvider()); + cache.Add("k", null, CacheItemPriority.Normal); + var found = cache.TryGet("k", out var value); + Assert.True(found); + Assert.Null(value); + } + + [Fact] + public void TryGet_SlidingExpiry_RefreshesOnRead() + { + var clock = new FakeTimeProvider(); + var cache = new CacheProvider(clock); + cache.Add("k", "v", TimeSpan.FromSeconds(10), CacheItemPriority.Normal); + + clock.Advance(TimeSpan.FromSeconds(8)); + Assert.True(cache.TryGet("k", out _)); + + // After read, sliding expiry resets — advance 8s more (16s since insert) and the key still exists. + clock.Advance(TimeSpan.FromSeconds(8)); + Assert.True(cache.TryGet("k", out _)); + } + + [Fact] + public void TryGet_AfterAbsoluteExpiry_ReturnsFalse() + { + var clock = new FakeTimeProvider(); + var cache = new CacheProvider(clock); + cache.Add("k", "v", TimeSpan.FromSeconds(5), CacheItemPriority.Normal); + clock.Advance(TimeSpan.FromSeconds(6)); + Assert.False(cache.TryGet("k", out _)); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/CacheProviderUpdateThrowsTests.cs b/src/ServiceConnect.UnitTests/Persistence/CacheProviderUpdateThrowsTests.cs new file mode 100644 index 000000000..a18d98d4d --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/CacheProviderUpdateThrowsTests.cs @@ -0,0 +1,42 @@ +using Microsoft.Extensions.Time.Testing; +using ServiceConnect.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence; + +public class CacheProviderUpdateThrowsTests +{ + [Fact] + public void Update_KeyAbsent_ThrowsKeyNotFoundException() + { + var cache = new CacheProvider(new FakeTimeProvider()); + var ex = Assert.Throws(() => + cache.Update("missing", "value")); + Assert.Contains("missing", ex.Message); + } + + [Fact] + public void Update_KeyPresent_ReplacesValueWithoutThrowing() + { + var cache = new CacheProvider(new FakeTimeProvider()); + cache.Add("k", "v1", CacheItemPriority.Normal); + cache.Update("k", "v2"); + + Assert.True(cache.TryGet("k", out var value)); + Assert.Equal("v2", value); + } + + [Fact] + public void Update_KeyRemovedConcurrently_ThrowsInsteadOfSilentReturn() + { + // White-box: simulate a concurrent removal by adding then removing the key + // before Update runs. The in-loop key check makes the throw deterministic; an + // early-guard structure (check-then-act outside the loop) would race against + // a concurrent remove and silently no-op. + var cache = new CacheProvider(new FakeTimeProvider()); + cache.Add("k", "v", CacheItemPriority.Normal); + cache.Remove("k"); + + Assert.Throws(() => cache.Update("k", "newvalue")); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/DeepCloneTests.cs b/src/ServiceConnect.UnitTests/Persistence/DeepCloneTests.cs new file mode 100644 index 000000000..9bf7398c8 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/DeepCloneTests.cs @@ -0,0 +1,67 @@ +using System.Text.Json.Serialization; +using ServiceConnect.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence; + +public class DeepCloneTests +{ + // Polymorphic types need a discriminator declared on the base for STJ to round-trip + // derived elements inside a base-typed collection. Saga authors with polymorphic + // state must annotate the base similarly; without the annotation the derived + // properties collapse to the declared type on read. + [JsonDerivedType(typeof(Dog), "dog")] + [JsonDerivedType(typeof(Animal), "animal")] + public class Animal { public string Name { get; set; } = ""; } + public class Dog : Animal { public string Breed { get; set; } = ""; } + + public class Owner + { + public Guid Id { get; set; } + public List Pets { get; set; } = []; + } + + [Fact] + public void Clone_CollectionElementIsSubclass_PreservesSubclassType() + { + // STJ's [JsonDerivedType] discriminator captures the runtime element type inside + // a base-typed collection so a Dog inside a List round-trips with Dog.Breed + // intact rather than being collapsed to Animal on deserialize. + var owner = new Owner + { + Id = Guid.NewGuid(), + Pets = { new Dog { Name = "Rex", Breed = "Labrador" } }, + }; + + var clone = DeepClone.Clone(owner); + + Assert.Single(clone.Pets); + var dog = Assert.IsType(clone.Pets[0]); + Assert.Equal("Labrador", dog.Breed); + } + + [Fact] + public void Clone_RootIsCollection_RoundTripsCollectionTypes() + { + // Header values on TimeoutData legitimately arrive as List / string[] / + // Dictionary<,>. STJ round-trips each of these at the document root without + // any wrapper, unlike the previous BSON-backed implementation which had to + // wrap collection roots because BSON refused them. + var list = new List { 1, 2, 3 }; + var listClone = DeepClone.Clone(list); + Assert.NotSame(list, listClone); + Assert.Equal(new byte[] { 1, 2, 3 }, listClone); + + var array = new[] { "a", "b", "c" }; + var arrayClone = DeepClone.Clone(array); + Assert.NotSame(array, arrayClone); + Assert.Equal(array, arrayClone); + + var dict = new Dictionary { ["one"] = 1, ["two"] = 2 }; + var dictClone = DeepClone.Clone(dict); + Assert.NotSame(dict, dictClone); + Assert.Equal(2, dictClone.Count); + Assert.Equal(1, dictClone["one"]); + Assert.Equal(2, dictClone["two"]); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/GuidSerializerRegistrationTests.cs b/src/ServiceConnect.UnitTests/Persistence/GuidSerializerRegistrationTests.cs new file mode 100644 index 000000000..31623bdbe --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/GuidSerializerRegistrationTests.cs @@ -0,0 +1,142 @@ +using System.Reflection; +using MongoDB.Bson; +using MongoDB.Bson.Serialization; +using MongoDB.Bson.Serialization.Serializers; +using Moq; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence; + +/// +/// Pins the once-only guard on . +/// The flag must only be set after serializer registration succeeds; flipping it earlier would let +/// a later caller short-circuit on broken driver state and reproduce a zero-match Guid filter at +/// query time. +/// +/// These tests rely on InternalsVisibleTo from the MongoDb persistence project and use +/// reflection to inspect/reset the module-private _guidSerializerRegistered flag. They +/// pin the observable invariant: the flag is only set after successful completion, which implies +/// the short-circuit cannot hide a previous throw from a later caller. +/// +[Collection("Mongo Bson serial")] +public class GuidSerializerRegistrationTests +{ + private const string FlagFieldName = "_guidSerializerRegistered"; + + private static FieldInfo FlagField => + typeof(MongoDbPersistenceExtensions).GetField( + FlagFieldName, + BindingFlags.NonPublic | BindingFlags.Static) + ?? throw new InvalidOperationException( + $"Expected static field '{FlagFieldName}' on MongoDbPersistenceExtensions."); + + private static int ReadFlag() => (int)FlagField.GetValue(null)!; + + private static void WriteFlag(int value) => FlagField.SetValue(null, value); + + [Fact] + public void EnsureGuidSerializerRegistered_SetsFlagAfterSuccessfulCompletion() + { + // The UnitTests assembly may have already triggered initialisation via some other + // code path (a previous test, a module initializer); force a clean "uninitialised" + // start so we are asserting about this specific call. + WriteFlag(0); + + MongoDbPersistenceExtensions.EnsureGuidSerializerRegistered(); + + Assert.Equal(1, ReadFlag()); + } + + [Fact] + public void EnsureGuidSerializerRegistered_ResetFlag_DoesNotShortCircuit() + { + // Core invariant: flag == 0 on entry means setup MUST run (and, on success, flip + // the flag to 1). This pins down the contract so that a future edit moving the + // flag flip to the top of the method would still pass this case but be caught by + // the verification-throw scenarios reasoned about in the class summary. + MongoDbPersistenceExtensions.EnsureGuidSerializerRegistered(); + Assert.Equal(1, ReadFlag()); + + WriteFlag(0); + Assert.Equal(0, ReadFlag()); + + MongoDbPersistenceExtensions.EnsureGuidSerializerRegistered(); + + Assert.Equal(1, ReadFlag()); + } + + [Fact] + public void EnsureGuidSerializerRegistered_FastPath_IsIdempotent() + { + // Once the flag is set, repeated calls are a no-op on the fast path and must not + // touch the flag (or any other global state that we could observe from here). + MongoDbPersistenceExtensions.EnsureGuidSerializerRegistered(); + Assert.Equal(1, ReadFlag()); + + MongoDbPersistenceExtensions.EnsureGuidSerializerRegistered(); + MongoDbPersistenceExtensions.EnsureGuidSerializerRegistered(); + + Assert.Equal(1, ReadFlag()); + } + + [Theory] + [InlineData(typeof(MongoDbAggregatorPersistor))] + [InlineData(typeof(MongoDbProcessManagerFinder))] + [InlineData(typeof(MongoDbTimeoutStore))] + public void Persistor_HasExplicitStaticConstructor(Type persistorType) + { + // An explicit `static T()` clears BeforeFieldInit and ensures the cctor runs + // before any field is touched — i.e., before any instance ctor body runs and + // before any serialization side-effect can be triggered. That's the contract + // we need for EnsureGuidSerializerRegistered to fire on direct-new paths. + // + // We can't assert "the cctor calls EnsureGuidSerializerRegistered" here without + // a fresh AppDomain — once any test has touched these types the cctor has + // already run and the side effect is invisible. Code review must guard the body. + Assert.NotNull(persistorType.TypeInitializer); + Assert.False( + (persistorType.Attributes & TypeAttributes.BeforeFieldInit) != 0, + $"{persistorType.Name} must declare an explicit `static {persistorType.Name}()` so the Guid serializer registrar fires before any field access on direct-ctor paths."); + } + + // --- IsCompatibleGuidSerializer unit tests --- + // These exercise the pure compatibility-check helper in isolation, without touching + // BSON's process-global serializer registry. The helper's return value drives whether + // the catch block in EnsureGuidSerializerRegistered re-throws; testing it here ensures + // that a regression on the throw path is caught deterministically in CI regardless of + // which process-global state the E2E test happened to observe. + + [Fact] + public void IsCompatibleGuidSerializer_StandardRepresentation_ReturnsTrue() + { + var serializer = new GuidSerializer(GuidRepresentation.Standard); + Assert.True(MongoDbPersistenceExtensions.IsCompatibleGuidSerializer(serializer)); + } + + [Theory] + [InlineData(GuidRepresentation.CSharpLegacy)] + [InlineData(GuidRepresentation.JavaLegacy)] + [InlineData(GuidRepresentation.PythonLegacy)] + [InlineData(GuidRepresentation.Unspecified)] + public void IsCompatibleGuidSerializer_NonStandardRepresentation_ReturnsFalse(GuidRepresentation representation) + { + var serializer = new GuidSerializer(representation); + Assert.False(MongoDbPersistenceExtensions.IsCompatibleGuidSerializer(serializer)); + } + + [Fact] + public void IsCompatibleGuidSerializer_NullSerializer_ReturnsFalse() + { + Assert.False(MongoDbPersistenceExtensions.IsCompatibleGuidSerializer(null)); + } + + [Fact] + public void IsCompatibleGuidSerializer_NonGuidSerializerImplementation_ReturnsFalse() + { + // A custom IBsonSerializer that isn't the BSON driver's GuidSerializer should + // be rejected — we can't introspect its representation. + var fakeSerializer = new Mock>(); + Assert.False(MongoDbPersistenceExtensions.IsCompatibleGuidSerializer(fakeSerializer.Object)); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/InMemory/CacheProviderConcurrencyTests.cs b/src/ServiceConnect.UnitTests/Persistence/InMemory/CacheProviderConcurrencyTests.cs new file mode 100644 index 000000000..81484d2e3 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/InMemory/CacheProviderConcurrencyTests.cs @@ -0,0 +1,276 @@ +using System; +using System.Collections.Concurrent; +using System.Collections.Generic; +using System.Linq; +using System.Threading; +using System.Threading.Tasks; +using Microsoft.Extensions.Time.Testing; +using ServiceConnect.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.InMemory; + +/// +/// Concurrency exercises for . The provider mixes a +/// ConcurrentDictionary of values with a separate sliding-window dictionary and +/// a timer dictionary; the per-key compound update lives behind _addLock. +/// Bugs we want to catch: a stale value retaining its TTL after re-Add, a +/// KeyRemoved event firing for a key that was never present, and PurgeNormalPriorities +/// dropping a high-priority entry that was upgraded mid-purge. +/// +public class CacheProviderConcurrencyTests +{ + [Fact] + public async Task ParallelAddSameKey_OnlyOneFinalValueSurvives() + { + // The dictionary slot is whatever the last Add wrote; what we are + // verifying is that the *associated* sliding-window/timer state is + // consistent with the final value (no orphans, no exceptions). + const int writers = 16; + const int rounds = 200; + + using var cache = new CacheProvider(); + + var tasks = Enumerable.Range(0, writers).Select(w => Task.Run(() => + { + for (var i = 0; i < rounds; i++) + { + cache.Add("hot-key", $"w{w}-i{i}", TimeSpan.FromMinutes(5)); + } + })).ToArray(); + + var ex = await Record.ExceptionAsync(() => Task.WhenAll(tasks)); + Assert.Null(ex); + + // The final stored value must be retrievable as a string and must be + // one of the values written by some worker (no torn write). + Assert.True(cache.TryGet("hot-key", out var observed)); + Assert.NotNull(observed); + Assert.Matches("^w\\d+-i\\d+$", observed); + } + + [Fact] + public async Task ParallelAddRemove_DifferentKeys_NoExceptions_AndCountStaysSane() + { + const int writers = 8; + const int perWriter = 500; + + using var cache = new CacheProvider(); + var keys = Enumerable.Range(0, writers * perWriter).Select(i => $"k{i}").ToArray(); + + var addTasks = Enumerable.Range(0, writers).Select(w => Task.Run(() => + { + for (var i = 0; i < perWriter; i++) + { + cache.Add(keys[(w * perWriter) + i], i); + } + })).ToArray(); + + var removeTasks = Enumerable.Range(0, writers).Select(w => Task.Run(() => + { + // Try removing the same keys; some calls will race the writer and find nothing. + for (var i = 0; i < perWriter; i++) + { + cache.Remove(keys[(w * perWriter) + i]); + } + })).ToArray(); + + var ex = await Record.ExceptionAsync(() => Task.WhenAll(addTasks.Concat(removeTasks))); + Assert.Null(ex); + Assert.InRange(cache.Count(), 0, writers * perWriter); + } + + [Fact] + public async Task PurgeNormalPriorities_ConcurrentWithUpgradeReAdd_DoesNotEvictUpgrade() + { + // The KVP-overload TryRemove inside PurgeNormalPriorities uses reference identity + // of CacheItem to ensure a slot that was upgraded mid-scan isn't removed. This + // test races the purge against a re-Add to high priority and verifies the high + // priority entry survives. + const int rounds = 100; + + for (var r = 0; r < rounds; r++) + { + using var cache = new CacheProvider(); + // Seed many normal-priority items so the purge has work to do. + for (var i = 0; i < 100; i++) + { + cache.Add($"normal-{i}", i, ServiceConnect.Persistence.InMemory.CacheItemPriority.Normal); + } + // Add the contested key at normal priority so it would be purged. + cache.Add("contested", "v", ServiceConnect.Persistence.InMemory.CacheItemPriority.Normal); + + var upgrader = Task.Run(() => + cache.Add("contested", "upgraded", ServiceConnect.Persistence.InMemory.CacheItemPriority.High)); + var purger = Task.Run(cache.PurgeNormalPriorities); + + await Task.WhenAll(upgrader, purger); + + // If the upgrade landed first the key survives at high priority; if the + // purge landed first the key is gone — but it must NEVER survive at + // normal priority (which would mean we leaked the doomed value). + if (cache.TryGet("contested", out var still)) + { + Assert.Equal("upgraded", still); + } + } + } + + [Fact] + public async Task KeyRemoved_FiresOnlyForActualRemovals_UnderConcurrentDuplicateRemoves() + { + // Many threads call Remove on the same key. KeyRemoved must fire exactly once — + // duplicate-remove attempts hit the no-op path and must not raise the event. + using var cache = new CacheProvider(); + cache.Add("only-one", 1); + + var fired = 0; + cache.KeyRemoved += (_, _) => Interlocked.Increment(ref fired); + + var tasks = Enumerable.Range(0, 32).Select(_ => Task.Run(() => cache.Remove("only-one"))).ToArray(); + await Task.WhenAll(tasks); + + Assert.Equal(1, fired); + Assert.False(cache.Contains("only-one")); + } + + [Fact] + public async Task UpdateRace_AgainstAdd_NoExceptionAndOneOfTheValuesPersists() + { + // Update has its own retry loop on TryUpdate; concurrent Add overwrites the + // slot wholesale. The contract is loose ("either one wins") but the operation + // must never throw or hang. + using var cache = new CacheProvider(); + cache.Add("k", "initial", TimeSpan.FromMinutes(5)); + + const int rounds = 1000; + + var updater = Task.Run(() => + { + for (var i = 0; i < rounds; i++) + { + cache.Update("k", $"upd-{i}"); + } + }); + + var adder = Task.Run(() => + { + for (var i = 0; i < rounds; i++) + { + cache.Add("k", $"add-{i}", TimeSpan.FromMinutes(5)); + } + }); + + var ex = await Record.ExceptionAsync(() => Task.WhenAll(updater, adder)); + Assert.Null(ex); + + Assert.True(cache.TryGet("k", out var final)); + Assert.NotNull(final); + Assert.Matches("^(upd|add)-\\d+$|^initial$", final); + } + + [Fact] + public async Task ParallelAddAndExpire_TimerFires_ButReAddPreemptsStaleTtl() + { + // A re-Add must replace the timer too; otherwise the old timer would + // fire and remove the freshly written value. We use FakeTimeProvider so + // we can deterministically advance time past the *first* TTL but not + // past the *re-Added* TTL, then verify the entry survives. + var time = new FakeTimeProvider(new DateTimeOffset(2026, 4, 21, 12, 0, 0, TimeSpan.Zero)); + using var cache = new CacheProvider(time); + + cache.Add("k", "first", TimeSpan.FromSeconds(1)); + cache.Add("k", "second", TimeSpan.FromMinutes(10)); + + // Advance past the first TTL — if the first timer wasn't disposed by the + // second Add, it would fire here and purge "second". + time.Advance(TimeSpan.FromSeconds(5)); + await Task.Delay(50); // give any leaked timer a chance to fire + + Assert.True(cache.TryGet("k", out var timerReset)); + Assert.Equal("second", timerReset); + } + + [Fact] + public async Task TimedAdd_ThenNoExpiryAdd_StaleReObservedCallback_DoesNotEvict() + { + // Generation-bump regression. A timed Add installs a timer that re-observes + // when the sliding TTL has been refreshed: the second timer captures the + // same generation. Between the re-observe and the second timer's fire, a + // no-expiry Add overwrites the value and clears _slidingTime. Without the + // generation bump in the no-expiry Add path, the second timer's callback + // sees a generation match, finds _slidingTime empty (cleared by the + // no-expiry Add), and falls through to Remove(key) — silently evicting the + // newly-installed value. + var time = new FakeTimeProvider(new DateTimeOffset(2026, 4, 21, 12, 0, 0, TimeSpan.Zero)); + using var cache = new CacheProvider(time); + + cache.Add("k", "first", TimeSpan.FromSeconds(1)); + // Slide the TTL so the first timer's fire results in a re-observe rather + // than an eviction. This gives us the dangerous "second timer in flight, + // captured generation==1" state. + time.Advance(TimeSpan.FromMilliseconds(500)); + Assert.True(cache.TryGet("k", out _)); + + // Fire the first timer — it observes sliding details, sees CanExpire==false, + // and re-StartObserving with the same generation. + time.Advance(TimeSpan.FromMilliseconds(500)); + await Task.Delay(20); + + // Replace with a no-expiry value. With the bump, the re-observed timer's + // generation check now fails and the callback bails. Without the bump it + // would evict "second" when the re-observed timer fires. + cache.Add("k", "second"); + + // Fire the re-observed timer. + time.Advance(TimeSpan.FromMilliseconds(600)); + await Task.Delay(20); + + Assert.True(cache.TryGet("k", out var observed)); + Assert.Equal("second", observed); + } + + [Fact] + public async Task ParallelRemoveAndAdd_NeverLeavesCacheValueWithoutSlidingState() + { + // I13 regression: Remove must serialize with Add. Without _addLock in + // Remove, a thread could complete Add(_cache, _slidingTime, _timers, _generations) + // entirely while Remove sat between its TryRemove on _cache and its + // cleanup of _slidingTime/_timers — leaving _cache holding the new value + // with no expiry tracking (and the new timer disposed), so the entry + // persisted indefinitely. + const int rounds = 5_000; + using var cache = new CacheProvider(); + + var adder = Task.Run(() => + { + for (var i = 0; i < rounds; i++) + { + cache.Add("k", $"v{i}", TimeSpan.FromMinutes(10)); + } + }); + + var remover = Task.Run(() => + { + for (var i = 0; i < rounds; i++) + { + cache.Remove("k"); + } + }); + + var ex = await Record.ExceptionAsync(() => Task.WhenAll(adder, remover)); + Assert.Null(ex); + + // Final state must be consistent: either the value is present with sliding + // tracking AND a timer (a "live" entry), or absent with everything cleared. + // We can probe consistency through the public API: if TryGet returns true, + // then a follow-up Add with the same key should also produce a TryGet hit + // — meaning the cache hasn't lost track of the slot's expiry plumbing. + if (cache.TryGet("k", out _)) + { + cache.Add("k", "final", TimeSpan.FromMinutes(10)); + Assert.True(cache.TryGet("k", out var finalValue)); + Assert.Equal("final", finalValue); + } + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/InMemory/CacheProviderDisposedGuardTests.cs b/src/ServiceConnect.UnitTests/Persistence/InMemory/CacheProviderDisposedGuardTests.cs new file mode 100644 index 000000000..44afd6da8 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/InMemory/CacheProviderDisposedGuardTests.cs @@ -0,0 +1,49 @@ +using ServiceConnect.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.InMemory; + +public class CacheProviderDisposedGuardTests +{ + private static CacheProvider CreateAndDispose() + { + var provider = new CacheProvider(); + provider.Dispose(); + return provider; + } + + [Fact] + public void Add_Sliding_AfterDispose_Throws() => + Assert.Throws(() => + CreateAndDispose().Add("k", new object(), TimeSpan.FromMinutes(1))); + + [Fact] + public void Add_Absolute_AfterDispose_Throws() => + Assert.Throws(() => + CreateAndDispose().Add("k", new object(), DateTimeOffset.UtcNow.AddMinutes(1))); + + [Fact] + public void Add_PriorityOnly_AfterDispose_Throws() => + Assert.Throws(() => + CreateAndDispose().Add("k", new object())); + + [Fact] + public void Remove_AfterDispose_Throws() => + Assert.Throws(() => + CreateAndDispose().Remove("k")); + + [Fact] + public void Clear_AfterDispose_Throws() => + Assert.Throws(() => + CreateAndDispose().Clear()); + + [Fact] + public void PurgeNormalPriorities_AfterDispose_Throws() => + Assert.Throws(() => + CreateAndDispose().PurgeNormalPriorities()); + + [Fact] + public void Update_AfterDispose_Throws() => + Assert.Throws(() => + CreateAndDispose().Update("k", new object())); +} diff --git a/src/ServiceConnect.UnitTests/Persistence/InMemory/CacheProviderMechanicalFixesTests.cs b/src/ServiceConnect.UnitTests/Persistence/InMemory/CacheProviderMechanicalFixesTests.cs new file mode 100644 index 000000000..a335929f1 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/InMemory/CacheProviderMechanicalFixesTests.cs @@ -0,0 +1,37 @@ +using Microsoft.Extensions.Time.Testing; +using ServiceConnect.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.InMemory; + +public class CacheProviderMechanicalFixesTests +{ + [Fact] + public async Task SlidingAdd_OldTimerCallback_DoesNotEvictNewValue() + { + // Drive the race deterministically with FakeTimeProvider: + // 1. Add("k", "v1") with a 50ms sliding window — installs timer T1 with generation=1. + // 2. Re-Add("k", "v2") with a 5s sliding window — installs T2 with generation=2. + // 3. Advance time past 50ms. If T1's callback ever runs (timer disposal does not + // await callbacks under TimeProvider.System), TryPurgeItem captured generation=1 + // while the current generation is 2 — mismatch — return without eviction. + // 4. Cache still holds "v2". + var fake = new FakeTimeProvider(); + var cache = new CacheProvider(fake); + try + { + cache.Add("k", "v1", TimeSpan.FromMilliseconds(50)); + cache.Add("k", "v2", TimeSpan.FromMilliseconds(5000)); + + fake.Advance(TimeSpan.FromMilliseconds(100)); + await Task.Delay(20); // let any pending timer callbacks complete + + Assert.True(cache.TryGet("k", out var current)); + Assert.Equal("v2", current); + } + finally + { + cache.Dispose(); + } + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/InMemory/CacheProviderTests.cs b/src/ServiceConnect.UnitTests/Persistence/InMemory/CacheProviderTests.cs new file mode 100644 index 000000000..0d4c6790e --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/InMemory/CacheProviderTests.cs @@ -0,0 +1,553 @@ +using System; +using System.Linq; +using System.Threading; +using System.Threading.Tasks; +using Microsoft.Extensions.Time.Testing; +using ServiceConnect.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.InMemory; + +public class CacheProviderTests +{ + [Fact] + public void Add_WithAbsoluteExpiry_ItemIsRetrievable() + { + var cache = new CacheProvider(); + cache.Add("key1", "value1", DateTimeOffset.UtcNow.AddMinutes(5)); + + Assert.True(cache.TryGet("key1", out var result)); + Assert.Equal("value1", result); + } + + [Fact] + public void Add_WithSlidingExpiry_ItemIsRetrievable() + { + var cache = new CacheProvider(); + cache.Add("key1", "value1", TimeSpan.FromMinutes(5)); + + Assert.True(cache.TryGet("key1", out var result)); + Assert.Equal("value1", result); + } + + [Fact] + public void Add_WithPastAbsoluteExpiry_ThrowsArgumentOutOfRangeException() + { + var cache = new CacheProvider(); + Assert.Throws(() => + cache.Add("key1", "value1", DateTimeOffset.UtcNow.AddMinutes(-1))); + } + + [Fact] + public void TryGet_WhenKeyDoesNotExist_ReturnsFalseAndNullDefault() + { + var cache = new CacheProvider(); + + var found = cache.TryGet("nonexistent", out var result); + + Assert.False(found); + Assert.Null(result); + } + + [Fact] + public void TryGet_WhenKeyDoesNotExistForValueType_ReturnsFalseAndZeroDefault() + { + var cache = new CacheProvider(); + + var found = cache.TryGet("nonexistent", out var result); + + Assert.False(found); + Assert.Equal(0, result); + } + + [Fact] + public void Remove_ExistingKey_ItemIsRemoved() + { + var cache = new CacheProvider(); + cache.Add("key1", "value1", DateTimeOffset.UtcNow.AddMinutes(5)); + + cache.Remove("key1"); + + Assert.False(cache.Contains("key1")); + } + + [Fact] + public void Remove_NonExistentKey_DoesNotThrow() + { + var cache = new CacheProvider(); + + var ex = Record.Exception(() => cache.Remove("nonexistent")); + + Assert.Null(ex); + } + + [Fact] + public void Remove_NullKey_DoesNotThrow() + { + var cache = new CacheProvider(); + + var ex = Record.Exception(() => cache.Remove(null!)); + + Assert.Null(ex); + } + + [Fact] + public void Remove_FiresKeyRemovedEvent() + { + var cache = new CacheProvider(); + cache.Add("key1", "value1", DateTimeOffset.UtcNow.AddMinutes(5)); + object? capturedKey = null; + cache.KeyRemoved += (_, args) => capturedKey = args.Key; + + cache.Remove("key1"); + + Assert.Equal("key1", capturedKey); + } + + [Fact] + public void Remove_WhenKeyAbsent_DoesNotFireKeyRemoved() + { + // Remove must not raise KeyRemoved when the key was not actually present, + // otherwise subscribers would observe spurious removal events. + var cache = new CacheProvider(); + int invocations = 0; + cache.KeyRemoved += (_, _) => invocations++; + + cache.Remove("never-added"); + + Assert.Equal(0, invocations); + } + + [Fact] + public void Clear_FiresKeyRemovedForEachEntry() + { + // Clear must raise KeyRemoved for every evicted entry so subscribers can + // unhook per-key state; bulk removal is not allowed to be silent. + var cache = new CacheProvider(); + cache.Add("key1", "value1", DateTimeOffset.UtcNow.AddMinutes(5)); + cache.Add("key2", "value2", DateTimeOffset.UtcNow.AddMinutes(5)); + var removed = new List(); + cache.KeyRemoved += (_, args) => removed.Add(args.Key); + + cache.Clear(); + + Assert.Equal(2, removed.Count); + Assert.Contains("key1", removed); + Assert.Contains("key2", removed); + } + + [Fact] + public void PurgeNormalPriorities_FiresKeyRemovedForEachPurgedEntry() + { + // PurgeNormalPriorities must raise KeyRemoved for each purged entry, + // and only for normal-priority entries. + var cache = new CacheProvider(); + cache.Add("normal1", "v1", DateTimeOffset.UtcNow.AddMinutes(5), CacheItemPriority.Normal); + cache.Add("normal2", "v2", DateTimeOffset.UtcNow.AddMinutes(5), CacheItemPriority.Normal); + cache.Add("high1", "v3", DateTimeOffset.UtcNow.AddMinutes(5), CacheItemPriority.High); + var removed = new List(); + cache.KeyRemoved += (_, args) => removed.Add(args.Key); + + var count = cache.PurgeNormalPriorities(); + + Assert.Equal(2, count); + Assert.Equal(2, removed.Count); + Assert.Contains("normal1", removed); + Assert.Contains("normal2", removed); + Assert.DoesNotContain("high1", removed); + } + + [Fact] + public void Contains_ExistingKey_ReturnsTrue() + { + var cache = new CacheProvider(); + cache.Add("key1", "value1", DateTimeOffset.UtcNow.AddMinutes(5)); + + Assert.True(cache.Contains("key1")); + } + + [Fact] + public void Contains_NonExistentKey_ReturnsFalse() + { + var cache = new CacheProvider(); + + Assert.False(cache.Contains("nonexistent")); + } + + [Fact] + public void Count_EmptyCache_ReturnsZero() + { + var cache = new CacheProvider(); + + Assert.Equal(0, cache.Count()); + } + + [Fact] + public void Count_AfterAddingItems_ReturnsCorrectCount() + { + var cache = new CacheProvider(); + cache.Add("key1", "value1", DateTimeOffset.UtcNow.AddMinutes(5)); + cache.Add("key2", "value2", DateTimeOffset.UtcNow.AddMinutes(5)); + cache.Add("key3", "value3", DateTimeOffset.UtcNow.AddMinutes(5)); + + Assert.Equal(3, cache.Count()); + } + + [Fact] + public void Count_AfterRemovingItem_Decrements() + { + var cache = new CacheProvider(); + cache.Add("key1", "value1", DateTimeOffset.UtcNow.AddMinutes(5)); + cache.Add("key2", "value2", DateTimeOffset.UtcNow.AddMinutes(5)); + + cache.Remove("key1"); + + Assert.Equal(1, cache.Count()); + } + + [Fact] + public void Clear_RemovesAllItems() + { + var cache = new CacheProvider(); + cache.Add("key1", "value1", DateTimeOffset.UtcNow.AddMinutes(5)); + cache.Add("key2", "value2", DateTimeOffset.UtcNow.AddMinutes(5)); + + cache.Clear(); + + Assert.Equal(0, cache.Count()); + } + + [Fact] + public void Keys_ReturnsAllStoredKeys() + { + var cache = new CacheProvider(); + cache.Add("key1", "value1", DateTimeOffset.UtcNow.AddMinutes(5)); + cache.Add("key2", "value2", DateTimeOffset.UtcNow.AddMinutes(5)); + + var keys = cache.Keys().ToList(); + + Assert.Equal(2, keys.Count); + Assert.Contains("key1", keys); + Assert.Contains("key2", keys); + } + + [Fact] + public void KeysGeneric_ReturnsOnlyKeysOfSpecifiedType() + { + var cache = new CacheProvider(); + cache.Add("stringKey", "value1", DateTimeOffset.UtcNow.AddMinutes(5)); + cache.Add(42, "value2", DateTimeOffset.UtcNow.AddMinutes(5)); + + var stringKeys = cache.Keys().ToList(); + + Assert.Single(stringKeys); + Assert.Equal("stringKey", stringKeys[0]); + } + + [Fact] + public void PurgeNormalPriorities_RemovesNormalItems_ReturnsCount() + { + var cache = new CacheProvider(); + cache.Add("normal1", "value1", DateTimeOffset.UtcNow.AddMinutes(5), CacheItemPriority.Normal); + cache.Add("normal2", "value2", DateTimeOffset.UtcNow.AddMinutes(5), CacheItemPriority.Normal); + cache.Add("high1", "value3", DateTimeOffset.UtcNow.AddMinutes(5), CacheItemPriority.High); + + int removed = cache.PurgeNormalPriorities(); + + Assert.Equal(2, removed); + Assert.True(cache.Contains("high1")); + Assert.False(cache.Contains("normal1")); + Assert.False(cache.Contains("normal2")); + } + + [Fact] + public void PurgeNormalPriorities_EmptyCache_ReturnsZero() + { + var cache = new CacheProvider(); + + int removed = cache.PurgeNormalPriorities(); + + Assert.Equal(0, removed); + } + + [Fact] + public async Task PurgeNormalPriorities_ConcurrentPriorityUpgrade_DoesNotRemoveUpgradedEntry() + { + // Bounded stress: many iterations of "purge concurrent with re-Add upgrading + // Normal -> High" so the race between the foreach's KVP capture and the + // TryRemove call opens repeatedly. With the key-only TryRemove, the purge's + // scan captures a Normal CacheItem reference, the concurrent Add swaps the + // slot to a fresh High CacheItem, and TryRemove(key) then deletes the High + // entry it never observed. With the KVP-overload, TryRemove succeeds only + // when the value reference still matches what the scan observed, so the + // upgraded entry survives. + + const int iterations = 5_000; + int losses = 0; + + for (int i = 0; i < iterations; i++) + { + var cache = new CacheProvider(); + + // Seed several Normal entries so the foreach has multiple iterations + // during which the concurrent upgrade can land. + for (int k = 0; k < 16; k++) + { + cache.Add($"k{k}", $"v{k}-normal", DateTimeOffset.UtcNow.AddMinutes(5), CacheItemPriority.Normal); + } + + const string victim = "k8"; + + var upgrade = Task.Run(() => + cache.Add(victim, "v8-high", DateTimeOffset.UtcNow.AddMinutes(5), CacheItemPriority.High)); + var purge = Task.Run(cache.PurgeNormalPriorities); + + await Task.WhenAll(upgrade, purge); + + // After both tasks finish, the upgrade has definitely run, so the slot + // currently holds the High CacheItem. The High entry must survive — purge + // is documented to remove only Normal entries. + if (!cache.Contains(victim)) + { + losses++; + } + } + + Assert.Equal(0, losses); + } + + [Fact] + public void Add_SameKeyTwice_ReplacesValueAndResetsExpiry() + { + // Re-Add on an existing key must atomically replace the value and reset + // the expiry timer so the newer window fully supersedes the previous one. + var now = new DateTimeOffset(2026, 4, 14, 20, 0, 0, TimeSpan.Zero); + var timeProvider = new FakeTimeProvider(now); + var cache = new CacheProvider(timeProvider); + + // Absolute expiry so no sliding auto-refresh gets in the way of the assertion. + cache.Add("key1", "first", now.AddMilliseconds(200)); + + timeProvider.Advance(TimeSpan.FromMilliseconds(150)); + cache.Add("key1", "second", now.AddMilliseconds(500)); + + // TryGet returns the newer value, confirming the replacement semantics. + Assert.True(cache.TryGet("key1", out var replaced)); + Assert.Equal("second", replaced); + + // The first Add's +200ms timer must have been cancelled in favour of the + // new +500ms window, so the entry survives at +300ms from t0. + timeProvider.Advance(TimeSpan.FromMilliseconds(150)); + Assert.True(cache.Contains("key1")); + + // ...and is gone once the new window elapses. + timeProvider.Advance(TimeSpan.FromMilliseconds(250)); + Assert.False(cache.Contains("key1")); + } + + [Fact] + public void Add_ThenReAddNoExpiry_ReplacesValueAndClearsExpiryState() + { + var cache = new CacheProvider(); + cache.Add("key1", "first", TimeSpan.FromMinutes(5)); + + cache.Add("key1", "second"); + + Assert.True(cache.TryGet("key1", out var reAdded)); + Assert.Equal("second", reAdded); + Assert.True(cache.Contains("key1")); + } + + [Fact] + public void Add_DifferentValueTypes_RetrievableCorrectly() + { + var cache = new CacheProvider(); + cache.Add("int-key", 42, DateTimeOffset.UtcNow.AddMinutes(5)); + cache.Add("bool-key", true, DateTimeOffset.UtcNow.AddMinutes(5)); + + Assert.True(cache.TryGet("int-key", out var intVal)); + Assert.Equal(42, intVal); + Assert.True(cache.TryGet("bool-key", out var boolVal)); + Assert.True(boolVal); + } + + // Timer lifecycle tests. + + [Fact] + public void Remove_DisposesTimer_NoLeakedTimerEntry() + { + // After Remove, the internal _timers dictionary must not retain an entry. + var cache = new CacheProvider(); + cache.Add("key1", "value1", TimeSpan.FromMinutes(5)); + + cache.Remove("key1"); + + // Verify item is gone (timer must have been cleaned up to avoid leaks). + Assert.False(cache.Contains("key1")); + // Disposing a cache that has already had its timers cleaned up must not throw. + var ex = Record.Exception(cache.Dispose); + Assert.Null(ex); + } + + [Fact] + public void Clear_DisposesAllTimers_NoLeaks() + { + var cache = new CacheProvider(); + cache.Add("key1", "value1", TimeSpan.FromMinutes(5)); + cache.Add("key2", "value2", TimeSpan.FromMinutes(5)); + + cache.Clear(); + + Assert.Equal(0, cache.Count()); + // Subsequent Dispose must be safe (timers already cleared). + var ex = Record.Exception(cache.Dispose); + Assert.Null(ex); + } + + [Fact] + public void PurgeNormalPriorities_CleansSlidingTimeAndTimers() + { + // Purging normal-priority items must also remove their _slidingTime and timer + // entries so neither collection grows without bound. + var cache = new CacheProvider(); + // Add with sliding expiry so SlidingDetails is created. + cache.Add("normal1", "value1", TimeSpan.FromMinutes(5), CacheItemPriority.Normal); + cache.Add("normal2", "value2", TimeSpan.FromMinutes(5), CacheItemPriority.Normal); + cache.Add("high1", "value3", TimeSpan.FromMinutes(5), CacheItemPriority.High); + + int removed = cache.PurgeNormalPriorities(); + + Assert.Equal(2, removed); + Assert.True(cache.Contains("high1")); + Assert.False(cache.Contains("normal1")); + Assert.False(cache.Contains("normal2")); + // Dispose must not throw — no dangling timer objects. + var ex = Record.Exception(cache.Dispose); + Assert.Null(ex); + } + + [Fact] + public void Update_ReplacesValue_TimerUnchanged() + { + // Update must NOT recreate the expiry timer. + var cache = new CacheProvider(); + cache.Add("key1", "original", TimeSpan.FromMinutes(5)); + + cache.Update("key1", "updated"); + + // Value is replaced. + Assert.True(cache.TryGet("key1", out var updated)); + Assert.Equal("updated", updated); + // Item still exists (timer not cancelled). + Assert.True(cache.Contains("key1")); + } + + [Fact] + public void Update_NonExistentKey_ThrowsKeyNotFoundException() + { + // Previously a silent no-op; now throws so callers fail deterministically + // instead of silently advancing state against a phantom key. + var cache = new CacheProvider(); + + var ex = Assert.Throws(() => cache.Update("missing", "value")); + + Assert.Contains("missing", ex.Message); + Assert.False(cache.Contains("missing")); + } + + [Fact] + public void Update_PreservesExpiry_ItemExpiresAfterOriginalDuration() + { + // Confirm that Update keeps the existing timer by verifying the item + // expires after the original short window (not reset to a new one). + var now = new DateTimeOffset(2026, 4, 14, 20, 0, 0, TimeSpan.Zero); + var timeProvider = new FakeTimeProvider(now); + var cache = new CacheProvider(timeProvider); + cache.Add("key1", "original", TimeSpan.FromMilliseconds(150)); + + cache.Update("key1", "updated"); + + // Value should be visible immediately. + Assert.True(cache.TryGet("key1", out var updatedValue)); + Assert.Equal("updated", updatedValue); + + // After the original expiry window the item should be gone. + timeProvider.Advance(TimeSpan.FromMilliseconds(200)); + Assert.False(cache.Contains("key1")); + } + + [Fact] + public void Dispose_CanBeCalledSafely_AfterClear() + { + var cache = new CacheProvider(); + cache.Add("key1", "value1", TimeSpan.FromMinutes(5)); + cache.Clear(); + + // Double-dispose must not throw. + cache.Dispose(); + var ex = Record.Exception(cache.Dispose); + Assert.Null(ex); + } + + [Fact] + public void Remove_NonExistentKey_TimerCleanupDoesNotThrow() + { + var cache = new CacheProvider(); + + var ex = Record.Exception(() => cache.Remove("ghost")); + + Assert.Null(ex); + } + + [Fact] + public void Add_WithAbsoluteExpiry_UsesProvidedTimeProviderClock() + { + var now = new DateTimeOffset(2026, 4, 14, 20, 0, 0, TimeSpan.Zero); + var timeProvider = new FakeTimeProvider(now); + var cache = new CacheProvider(timeProvider); + + cache.Add("key1", "value1", now.AddMinutes(5)); + Assert.True(cache.Contains("key1")); + + timeProvider.Advance(TimeSpan.FromMinutes(5).Add(TimeSpan.FromMilliseconds(1))); + + Assert.False(cache.Contains("key1")); + } + + [Fact] + public void Add_WithSlidingExpiry_SlidesAgainstProvidedTimeProviderClock() + { + var now = new DateTimeOffset(2026, 4, 14, 20, 0, 0, TimeSpan.Zero); + var timeProvider = new FakeTimeProvider(now); + var cache = new CacheProvider(timeProvider); + + cache.Add("key1", "value1", TimeSpan.FromMinutes(5)); + + timeProvider.Advance(TimeSpan.FromMinutes(4)); + Assert.True(cache.TryGet("key1", out var sliding)); + Assert.Equal("value1", sliding); + + timeProvider.Advance(TimeSpan.FromMinutes(4)); + Assert.True(cache.Contains("key1")); + + timeProvider.Advance(TimeSpan.FromMinutes(2)); + Assert.False(cache.Contains("key1")); + } + + [Fact] + public void KeysOfObject_ReturnsAllKeysIncludingSubtypes() + { + // Keys() must return every key whose runtime type is assignable to TKey, + // not only keys whose runtime type is exactly TKey. An exact-type match would + // make Keys() return empty (no key's runtime type is literally + // System.Object). Verified through object (covers everything) and IComparable + // (Guid/string/int all implement it). + var provider = new CacheProvider(); + provider.Add(Guid.NewGuid(), 1); + provider.Add("two", 2); + provider.Add(3, 3); + + Assert.Equal(3, provider.Keys().Count()); + Assert.Equal(3, provider.Keys().Count()); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/InMemory/InMemoryAggregatorPersistorConcurrencyTests.cs b/src/ServiceConnect.UnitTests/Persistence/InMemory/InMemoryAggregatorPersistorConcurrencyTests.cs new file mode 100644 index 000000000..5f3a28ed6 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/InMemory/InMemoryAggregatorPersistorConcurrencyTests.cs @@ -0,0 +1,196 @@ +using System; +using System.Collections.Concurrent; +using System.Collections.Generic; +using System.Linq; +using System.Threading; +using System.Threading.Tasks; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Exceptions; +using ServiceConnect.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.InMemory; + +/// +/// Concurrency exercises for . The +/// persistor guards a single mutable list per stream behind one lock; bugs that +/// would lose buffered messages or surface a torn read only show up under +/// concurrent insert/get/remove pressure. +/// +public class InMemoryAggregatorPersistorConcurrencyTests +{ + [Fact] + public async Task ParallelInsert_ToSameKey_AllItemsRetrievable() + { + const int writers = 16; + const int perWriter = 100; + const int expected = writers * perWriter; + + using var persistor = new InMemoryAggregatorPersistor(); + + var tasks = Enumerable.Range(0, writers).Select(w => Task.Run(async () => + { + for (var i = 0; i < perWriter; i++) + { + await persistor.InsertDataAsync( + new AggregatorTestData(Guid.NewGuid()) { Value = $"w{w}-{i}" }, + "shared", + Guid.NewGuid().ToString(), + CancellationToken.None); + } + })).ToArray(); + + await Task.WhenAll(tasks); + + var data = await persistor.GetDataAsync("shared", CancellationToken.None); + Assert.Equal(expected, data.Count); + Assert.Equal(expected, await persistor.CountAsync("shared", CancellationToken.None)); + } + + [Fact] + public async Task ParallelInsert_ToDifferentKeys_NoCrossContamination() + { + const int streamCount = 32; + const int perStream = 50; + + using var persistor = new InMemoryAggregatorPersistor(); + + var tasks = Enumerable.Range(0, streamCount).Select(s => Task.Run(async () => + { + for (var i = 0; i < perStream; i++) + { + await persistor.InsertDataAsync( + new AggregatorTestData(Guid.NewGuid()) { Value = $"s{s}-{i}" }, + $"stream-{s}", + Guid.NewGuid().ToString(), + CancellationToken.None); + } + })).ToArray(); + + await Task.WhenAll(tasks); + + for (var s = 0; s < streamCount; s++) + { + var data = await persistor.GetDataAsync($"stream-{s}", CancellationToken.None); + Assert.Equal(perStream, data.Count); + Assert.All(data, item => Assert.StartsWith($"s{s}-", ((AggregatorTestData)item).Value)); + } + } + + [Fact] + public async Task ParallelInsertAndRemove_StateRemainsConsistent() + { + // Interleave inserts and snapshot-driven removes; the buffer must + // never produce a torn snapshot or trip the no-op-delete contract. + const int rounds = 200; + + using var persistor = new InMemoryAggregatorPersistor(); + + var inserter = Task.Run(async () => + { + for (var i = 0; i < rounds; i++) + { + await persistor.InsertDataAsync( + new AggregatorTestData(Guid.NewGuid()) { Value = $"i{i}" }, + "key", Guid.NewGuid().ToString(), CancellationToken.None); + } + }); + + var remover = Task.Run(async () => + { + for (var i = 0; i < rounds; i++) + { + var snapshot = await persistor.GetSnapshotAsync("key", CancellationToken.None); + if (snapshot.ResolvedIds.Count > 0) + { + await persistor.RemoveSnapshotAsync("key", snapshot, CancellationToken.None); + } + await Task.Yield(); + } + }); + + var ex = await Record.ExceptionAsync(() => Task.WhenAll(inserter, remover)); + Assert.Null(ex); + + // Drain any residual buffer; final state must be coherent (no exceptions). + var residual = await persistor.GetSnapshotAsync("key", CancellationToken.None); + if (residual.ResolvedIds.Count > 0) + { + await persistor.RemoveSnapshotAsync("key", residual, CancellationToken.None); + } + Assert.Equal(0, await persistor.CountAsync("key", CancellationToken.None)); + } + + [Fact] + public async Task ParallelRemoveData_OnlyOneRemoverSucceeds_RestThrowConcurrencyException() + { + // Multiple workers race to remove the same correlation id. The persistor + // must surface a ConcurrencyException to all but one — silently no-oping + // would be the bug we're guarding against. + using var persistor = new InMemoryAggregatorPersistor(); + var corrId = Guid.NewGuid(); + await persistor.InsertDataAsync(new AggregatorTestData(corrId) { Value = "single" }, "key", Guid.NewGuid().ToString(), CancellationToken.None); + + const int contenders = 16; + var successes = 0; + var concurrencyConflicts = 0; + + var tasks = Enumerable.Range(0, contenders).Select(_ => Task.Run(async () => + { + try + { + await persistor.RemoveDataAsync("key", corrId, CancellationToken.None); + Interlocked.Increment(ref successes); + } + catch (ConcurrencyException) + { + Interlocked.Increment(ref concurrencyConflicts); + } + })).ToArray(); + + await Task.WhenAll(tasks); + + Assert.Equal(1, successes); + Assert.Equal(contenders - 1, concurrencyConflicts); + } + + [Fact] + public async Task ParallelGet_WhileWriting_NeverReturnsTornData() + { + // GetDataAsync deep-clones every entry under the lock — a reader must + // never observe a half-written list (e.g. fewer entries than were + // already committed). We verify the count grows monotonically as + // observed by readers running alongside the writer. + const int total = 500; + + using var persistor = new InMemoryAggregatorPersistor(); + + var observedCounts = new ConcurrentBag(); + + var writer = Task.Run(async () => + { + for (var i = 0; i < total; i++) + { + await persistor.InsertDataAsync( + new AggregatorTestData(Guid.NewGuid()) { Value = i.ToString() }, + "stream", Guid.NewGuid().ToString(), CancellationToken.None); + } + }); + + var readers = Enumerable.Range(0, 8).Select(_ => Task.Run(async () => + { + while (!writer.IsCompleted) + { + var snapshot = await persistor.GetDataAsync("stream", CancellationToken.None); + observedCounts.Add(snapshot.Count); + await Task.Yield(); + } + })).ToArray(); + + await Task.WhenAll(readers.Append(writer)); + + // Every observed count is in [0, total]. None negative, none exceeds total. + Assert.All(observedCounts, c => Assert.InRange(c, 0, total)); + Assert.Equal(total, await persistor.CountAsync("stream", CancellationToken.None)); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/InMemory/InMemoryAggregatorPersistorCountResolvedTests.cs b/src/ServiceConnect.UnitTests/Persistence/InMemory/InMemoryAggregatorPersistorCountResolvedTests.cs new file mode 100644 index 000000000..6b93ba23c --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/InMemory/InMemoryAggregatorPersistorCountResolvedTests.cs @@ -0,0 +1,62 @@ +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.InMemory; + +/// +/// CountResolvedAsync coverage for the InMemory aggregator persistor. +/// +/// +/// The InMemory persistor cannot produce an unresolved entry by construction: +/// rejects null and stores +/// typed instances directly (no deserialise step that +/// could fail), so every record is resolved by definition. The plan's stub for +/// "InsertUnresolvedRecord" is therefore intentionally not realised here — the +/// persistor's design forecloses that branch. +/// +/// The Mongo persistor is the regression backstop for unresolved-aware gating: see +/// MongoDbAggregatorPersistorCountResolvedTests. The smoke test below proves the +/// InMemory override is wired (CountResolvedAsync agrees with CountAsync for both +/// populated and empty buckets) so a future refactor that decouples the two won't go +/// unnoticed. +/// +public class InMemoryAggregatorPersistorCountResolvedTests +{ + [Fact] + public async Task CountResolvedAsync_AllInsertedRecordsAreResolved() + { + IAggregatorPersistor persistor = new InMemoryAggregatorPersistor(); + await persistor.InsertDataAsync(new AggregatorTestData(Guid.NewGuid()), "agg-resolved", Guid.NewGuid().ToString(), CancellationToken.None); + await persistor.InsertDataAsync(new AggregatorTestData(Guid.NewGuid()), "agg-resolved", Guid.NewGuid().ToString(), CancellationToken.None); + await persistor.InsertDataAsync(new AggregatorTestData(Guid.NewGuid()), "agg-resolved", Guid.NewGuid().ToString(), CancellationToken.None); + + var total = await persistor.CountAsync("agg-resolved"); + var resolved = await persistor.CountResolvedAsync("agg-resolved"); + + Assert.Equal(3, total); + Assert.Equal(total, resolved); + } + + [Fact] + public async Task CountResolvedAsync_NoBucket_ReturnsZero() + { + IAggregatorPersistor persistor = new InMemoryAggregatorPersistor(); + + var resolved = await persistor.CountResolvedAsync("missing-bucket"); + + Assert.Equal(0, resolved); + } + + [Fact] + public async Task CountResolvedAsync_PreCancelledToken_ThrowsOCE() + { + IAggregatorPersistor persistor = new InMemoryAggregatorPersistor(); + await persistor.InsertDataAsync(new AggregatorTestData(Guid.NewGuid()), "agg-cancel", Guid.NewGuid().ToString(), CancellationToken.None); + + using var cts = new CancellationTokenSource(); + cts.Cancel(); + await Assert.ThrowsAnyAsync( + () => persistor.CountResolvedAsync("agg-cancel", cts.Token)); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/InMemory/InMemoryAggregatorPersistorLockHoldTests.cs b/src/ServiceConnect.UnitTests/Persistence/InMemory/InMemoryAggregatorPersistorLockHoldTests.cs new file mode 100644 index 000000000..d8e929e8a --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/InMemory/InMemoryAggregatorPersistorLockHoldTests.cs @@ -0,0 +1,34 @@ +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.InMemory; + +public class InMemoryAggregatorPersistorLockHoldTests +{ + [Fact] + public async Task GetSnapshotAsync_ReturnsClonedEntries() + { + // Lock-hold property is hard to test directly without driving real concurrency. + // The behavioural test verifies (a) snapshots return cloned data (not the same + // reference as stored), and (b) the snapshot path still produces correct output + // end-to-end with cloning inside the lock. + var persistor = new InMemoryAggregatorPersistor(); + var data = new TestAggregatorMessage { CorrelationId = Guid.NewGuid(), Payload = "x" }; + await persistor.InsertDataAsync(data, "test", Guid.NewGuid().ToString()); + + var snapshot = await persistor.GetSnapshotAsync("test"); + + Assert.Single(snapshot.ResolvedMessages); + var stored = (TestAggregatorMessage)snapshot.ResolvedMessages[0]; + Assert.Equal(data.Payload, stored.Payload); + // Clone returned a fresh instance, not the original reference. + Assert.NotSame(data, stored); + } + + private sealed class TestAggregatorMessage : IHasCorrelationId + { + public Guid CorrelationId { get; set; } + public string Payload { get; set; } = string.Empty; + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/InMemory/InMemoryAggregatorPersistorTests.cs b/src/ServiceConnect.UnitTests/Persistence/InMemory/InMemoryAggregatorPersistorTests.cs new file mode 100644 index 000000000..4ad158d74 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/InMemory/InMemoryAggregatorPersistorTests.cs @@ -0,0 +1,346 @@ +using System; +using System.Threading; +using System.Threading.Tasks; +using Microsoft.Extensions.Time.Testing; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Exceptions; +using ServiceConnect.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.InMemory; + +/// +/// A simple IProcessManagerData implementation for aggregator tests. +/// Extends Message and implements IProcessManagerData (required by InMemoryAggregatorPersistor internals). +/// +public class AggregatorTestData(Guid correlationId) : Message(correlationId), IProcessManagerData +{ + public string Value { get; set; } = ""; + + // Explicit interface implementation to satisfy IProcessManagerData.CorrelationId { get; set; } + // while Message.CorrelationId only has a getter. + Guid IProcessManagerData.CorrelationId + { + get => base.CorrelationId; + set { /* Message CorrelationId is immutable; set via constructor */ } + } +} + +public class InMemoryAggregatorPersistorTests +{ + [Fact] + public async Task ShouldInsertData() + { + // Arrange + IAggregatorPersistor aggregatorPersistor = new InMemoryAggregatorPersistor(); + var data = new AggregatorTestData(Guid.NewGuid()) { Value = "TestData" }; + + // Act + await aggregatorPersistor.InsertDataAsync(data, "key1", Guid.NewGuid().ToString(), CancellationToken.None); + + // Assert + var result = await aggregatorPersistor.GetDataAsync("key1", CancellationToken.None); + Assert.Single(result); + Assert.Equal("TestData", ((AggregatorTestData)result[0]).Value); + } + + [Fact] + public async Task ShouldDeleteData() + { + // Arrange + var corrId = Guid.NewGuid(); + IAggregatorPersistor aggregatorPersistor = new InMemoryAggregatorPersistor(); + var data = new AggregatorTestData(corrId); + await aggregatorPersistor.InsertDataAsync(data, "key1", Guid.NewGuid().ToString(), CancellationToken.None); + + // Act + await aggregatorPersistor.RemoveDataAsync("key1", corrId, CancellationToken.None); + + // Assert + Assert.Empty(await aggregatorPersistor.GetDataAsync("key1", CancellationToken.None)); + } + + [Fact] + public async Task GetData_WhenKeyDoesNotExist_ReturnsEmptyList() + { + IAggregatorPersistor persistor = new InMemoryAggregatorPersistor(); + + var result = await persistor.GetDataAsync("nonexistent-key", CancellationToken.None); + + Assert.Empty(result); + } + + [Fact] + public async Task InsertData_MultipleItems_AllRetrievable() + { + IAggregatorPersistor persistor = new InMemoryAggregatorPersistor(); + var data1 = new AggregatorTestData(Guid.NewGuid()) { Value = "first" }; + var data2 = new AggregatorTestData(Guid.NewGuid()) { Value = "second" }; + + await persistor.InsertDataAsync(data1, "mykey", Guid.NewGuid().ToString(), CancellationToken.None); + await persistor.InsertDataAsync(data2, "mykey", Guid.NewGuid().ToString(), CancellationToken.None); + + var result = await persistor.GetDataAsync("mykey", CancellationToken.None); + Assert.Equal(2, result.Count); + } + + [Fact] + public async Task InsertData_DifferentKeys_StoredSeparately() + { + IAggregatorPersistor persistor = new InMemoryAggregatorPersistor(); + var data1 = new AggregatorTestData(Guid.NewGuid()) { Value = "alpha" }; + var data2 = new AggregatorTestData(Guid.NewGuid()) { Value = "beta" }; + + await persistor.InsertDataAsync(data1, "key-a", Guid.NewGuid().ToString(), CancellationToken.None); + await persistor.InsertDataAsync(data2, "key-b", Guid.NewGuid().ToString(), CancellationToken.None); + + Assert.Single(await persistor.GetDataAsync("key-a", CancellationToken.None)); + Assert.Single(await persistor.GetDataAsync("key-b", CancellationToken.None)); + Assert.Equal("alpha", ((AggregatorTestData)(await persistor.GetDataAsync("key-a", CancellationToken.None))[0]).Value); + Assert.Equal("beta", ((AggregatorTestData)(await persistor.GetDataAsync("key-b", CancellationToken.None))[0]).Value); + } + + [Fact] + public async Task Count_WhenKeyDoesNotExist_ReturnsZero() + { + IAggregatorPersistor persistor = new InMemoryAggregatorPersistor(); + + int count = await persistor.CountAsync("nonexistent-key", CancellationToken.None); + + Assert.Equal(0, count); + } + + [Fact] + public async Task Count_AfterInsertingOneItem_ReturnsOne() + { + IAggregatorPersistor persistor = new InMemoryAggregatorPersistor(); + await persistor.InsertDataAsync(new AggregatorTestData(Guid.NewGuid()), "mykey", Guid.NewGuid().ToString(), CancellationToken.None); + + int count = await persistor.CountAsync("mykey", CancellationToken.None); + + Assert.Equal(1, count); + } + + [Fact] + public async Task Count_AfterInsertingMultipleItems_ReturnsCorrectCount() + { + IAggregatorPersistor persistor = new InMemoryAggregatorPersistor(); + await persistor.InsertDataAsync(new AggregatorTestData(Guid.NewGuid()), "mykey", Guid.NewGuid().ToString(), CancellationToken.None); + await persistor.InsertDataAsync(new AggregatorTestData(Guid.NewGuid()), "mykey", Guid.NewGuid().ToString(), CancellationToken.None); + await persistor.InsertDataAsync(new AggregatorTestData(Guid.NewGuid()), "mykey", Guid.NewGuid().ToString(), CancellationToken.None); + + int count = await persistor.CountAsync("mykey", CancellationToken.None); + + Assert.Equal(3, count); + } + + [Fact] + public async Task Count_AfterRemovingItem_DecrementsByOne() + { + IAggregatorPersistor persistor = new InMemoryAggregatorPersistor(); + var corrId = Guid.NewGuid(); + await persistor.InsertDataAsync(new AggregatorTestData(corrId), "mykey", Guid.NewGuid().ToString(), CancellationToken.None); + await persistor.InsertDataAsync(new AggregatorTestData(Guid.NewGuid()), "mykey", Guid.NewGuid().ToString(), CancellationToken.None); + + await persistor.RemoveDataAsync("mykey", corrId, CancellationToken.None); + + Assert.Equal(1, await persistor.CountAsync("mykey", CancellationToken.None)); + } + + [Fact] + public async Task RemoveAllAsync_ClearsAllItemsForKey() + { + IAggregatorPersistor persistor = new InMemoryAggregatorPersistor(); + await persistor.InsertDataAsync(new AggregatorTestData(Guid.NewGuid()), "mykey", Guid.NewGuid().ToString(), CancellationToken.None); + await persistor.InsertDataAsync(new AggregatorTestData(Guid.NewGuid()), "mykey", Guid.NewGuid().ToString(), CancellationToken.None); + + await persistor.RemoveAllAsync("mykey", CancellationToken.None); + + Assert.Empty(await persistor.GetDataAsync("mykey", CancellationToken.None)); + Assert.Equal(0, await persistor.CountAsync("mykey", CancellationToken.None)); + } + + [Fact] + public async Task RemoveAllAsync_WhenKeyDoesNotExist_DoesNotThrow() + { + IAggregatorPersistor persistor = new InMemoryAggregatorPersistor(); + + var ex = await Record.ExceptionAsync(() => persistor.RemoveAllAsync("nonexistent-key", CancellationToken.None)); + + Assert.Null(ex); + } + + [Fact] + public async Task RemoveAllAsync_PreCancelledToken_ThrowsOCE() + { + var persistor = new InMemoryAggregatorPersistor(); + using var cts = new CancellationTokenSource(); + cts.Cancel(); + await Assert.ThrowsAnyAsync( + () => persistor.RemoveAllAsync("test", cts.Token)); + } + + [Fact] + public async Task RemoveData_WhenKeyDoesNotExist_ThrowsConcurrencyException() + { + // Aggregator persistors must agree on the no-op-delete contract: a delete against a + // mismatched key surfaces as ConcurrencyException so callers can distinguish a + // concurrent-removal race from a structural persistence failure. Mongo and the + // InMemoryProcessManagerFinder already follow this rule. + IAggregatorPersistor persistor = new InMemoryAggregatorPersistor(); + + await Assert.ThrowsAsync( + () => persistor.RemoveDataAsync("nonexistent-key", Guid.NewGuid(), CancellationToken.None)); + } + + [Fact] + public async Task RemoveData_WhenKeyExistsButCorrelationIdMismatch_ThrowsConcurrencyException() + { + // The (name, correlationId) row not matching any entry — even when the name bucket exists — + // is the exact case that was silently no-op'ing. Mirror the MongoDb contract. + IAggregatorPersistor persistor = new InMemoryAggregatorPersistor(); + await persistor.InsertDataAsync(new AggregatorTestData(Guid.NewGuid()), "batch-mismatch", Guid.NewGuid().ToString(), CancellationToken.None); + + await Assert.ThrowsAsync( + () => persistor.RemoveDataAsync("batch-mismatch", Guid.NewGuid(), CancellationToken.None)); + } + + [Fact] + public async Task InsertDataAsync_PreCancelledToken_ThrowsOCE() + { + var persistor = new InMemoryAggregatorPersistor(); + using var cts = new CancellationTokenSource(); + cts.Cancel(); + await Assert.ThrowsAnyAsync( + () => persistor.InsertDataAsync(new AggregatorTestData(Guid.NewGuid()), "test", Guid.NewGuid().ToString(), cts.Token)); + } + + [Fact] + public async Task GetDataAsync_PreCancelledToken_ThrowsOCE() + { + var persistor = new InMemoryAggregatorPersistor(); + using var cts = new CancellationTokenSource(); + cts.Cancel(); + await Assert.ThrowsAnyAsync( + () => persistor.GetDataAsync("test", cts.Token)); + } + + [Fact] + public async Task RemoveDataAsync_PreCancelledToken_ThrowsOCE() + { + var persistor = new InMemoryAggregatorPersistor(); + using var cts = new CancellationTokenSource(); + cts.Cancel(); + await Assert.ThrowsAnyAsync( + () => persistor.RemoveDataAsync("test", Guid.NewGuid(), cts.Token)); + } + + [Fact] + public async Task CountAsync_PreCancelledToken_ThrowsOCE() + { + var persistor = new InMemoryAggregatorPersistor(); + using var cts = new CancellationTokenSource(); + cts.Cancel(); + await Assert.ThrowsAnyAsync( + () => persistor.CountAsync("test", cts.Token)); + } + + // --- Aggregator buffer is caller-managed: no background TTL --- + + [Fact] + public async Task Inserted_AggregatorBuffer_StillResolvable_After3Days() + { + // Aggregator buffers flush via RemoveSnapshot/RemoveAll only. Background + // expiry must never drop buffered messages mid-aggregation, regardless + // of how long the window stays open. + var timeProvider = new FakeTimeProvider(new DateTimeOffset(2026, 4, 21, 12, 0, 0, TimeSpan.Zero)); + IAggregatorPersistor persistor = new InMemoryAggregatorPersistor(timeProvider); + await persistor.InsertDataAsync(new AggregatorTestData(Guid.NewGuid()) { Value = "buffered" }, "slow-stream", Guid.NewGuid().ToString(), CancellationToken.None); + + timeProvider.Advance(TimeSpan.FromDays(3)); + + var result = await persistor.GetDataAsync("slow-stream", CancellationToken.None); + Assert.Single(result); + Assert.Equal("buffered", ((AggregatorTestData)result[0]).Value); + } + + /// + /// Aggregator test data with a nested mutable collection, used to prove the + /// in-memory persistor deep-clones rather than aliasing caller state. + /// + public class AggWithNested(Guid correlationId) : Message(correlationId), IProcessManagerData + { + public List Tags { get; set; } = []; + Guid IProcessManagerData.CorrelationId + { + get => base.CorrelationId; + set { /* immutable */ } + } + } + + [Fact] + public async Task InsertData_ThenMutateCallerObject_DoesNotCorruptStoredEntry() + { + // Insert must deep-clone so the caller's subsequent mutation + // (including nested collections) does not leak into the buffer. + IAggregatorPersistor persistor = new InMemoryAggregatorPersistor(); + var data = new AggWithNested(Guid.NewGuid()); + data.Tags.Add("original"); + + await persistor.InsertDataAsync(data, "nested-key", Guid.NewGuid().ToString(), CancellationToken.None); + data.Tags.Add("after-insert-mutation"); + + var result = await persistor.GetDataAsync("nested-key", CancellationToken.None); + var stored = Assert.IsType(Assert.Single(result)); + Assert.Equal(new[] { "original" }, stored.Tags); + } + + [Fact] + public async Task GetData_ThenMutateReturnedObject_DoesNotCorruptStoredEntry() + { + // Retrieval must deep-clone so the caller mutating the returned instance + // does not corrupt the stored copy seen by the next read. + IAggregatorPersistor persistor = new InMemoryAggregatorPersistor(); + var data = new AggWithNested(Guid.NewGuid()); + data.Tags.Add("original"); + await persistor.InsertDataAsync(data, "nested-key", Guid.NewGuid().ToString(), CancellationToken.None); + + var first = (AggWithNested)(await persistor.GetDataAsync("nested-key", CancellationToken.None))[0]; + first.Tags.Add("mutated-by-caller"); + + var second = (AggWithNested)(await persistor.GetDataAsync("nested-key", CancellationToken.None))[0]; + Assert.Equal(new[] { "original" }, second.Tags); + } + + [Fact] + public void Persistor_ImplementsIDisposable_AndDisposeIsIdempotent() + { + // The persistor owns a CacheProvider that registers ITimer handles with the + // TimeProvider. Dispose must release them exactly once so rebuilds of the + // DI container do not leak timers, even when Dispose is called repeatedly. + var persistor = new InMemoryAggregatorPersistor(); + Assert.IsAssignableFrom(persistor); + + persistor.Dispose(); + var second = Record.Exception(persistor.Dispose); + Assert.Null(second); + } + + [Fact] + public async Task RemoveDataAsync_NonMessageDtoWithCorrelationIdProperty_RemovesEntry() + { + var persistor = new InMemoryAggregatorPersistor(); + var dto = new ThirdPartyDto { CorrelationId = Guid.NewGuid(), Payload = "payload-A" }; + + await persistor.InsertDataAsync(dto, "stream-A", Guid.NewGuid().ToString()); + await persistor.RemoveDataAsync("stream-A", dto.CorrelationId); + + Assert.Equal(0, await persistor.CountAsync("stream-A")); + } + + private sealed class ThirdPartyDto : IHasCorrelationId + { + public Guid CorrelationId { get; init; } + public string Payload { get; init; } = string.Empty; + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/InMemory/InMemoryProcessManagerFinderCloneCountTests.cs b/src/ServiceConnect.UnitTests/Persistence/InMemory/InMemoryProcessManagerFinderCloneCountTests.cs new file mode 100644 index 000000000..b4cb29a33 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/InMemory/InMemoryProcessManagerFinderCloneCountTests.cs @@ -0,0 +1,66 @@ +using System; +using System.Threading; +using System.Threading.Tasks; +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.InMemory; + +public class CountingProcessManagerData : IProcessManagerData +{ + public static int GetterCount; + + public Guid CorrelationId { get; set; } + + private string _name = ""; + public string Name + { + get { Interlocked.Increment(ref GetterCount); return _name; } + set => _name = value; + } +} + +public class InMemoryProcessManagerFinderCloneCountTests +{ + [Fact] + public async Task FindDataAsync_ClonesOnlyMatchedItem_NotEveryCandidate() + { + IProcessManagerFinder finder = new InMemoryProcessManagerFinder(new ProcessManagerPredicateCache(), new InMemoryPersistenceState(TimeProvider.System)); + + const int partitionSize = 100; + Guid targetId = Guid.Empty; + for (int i = 0; i < partitionSize; i++) + { + var id = Guid.NewGuid(); + if (i == 42) + { + targetId = id; + } + + await finder.InsertDataAsync( + new CountingProcessManagerData { CorrelationId = id, Name = $"item-{i}" }, + CancellationToken.None); + } + + var mapper = new TestProcessManagerPropertyMapper(); + mapper.ConfigureMapping(m => m.CorrelationId, pm => pm.CorrelationId); + + // Inserts deep-clone on store (one getter visit per insert via JSON serialization). + // Reset so we measure only the work performed by FindDataAsync. + Interlocked.Exchange(ref CountingProcessManagerData.GetterCount, 0); + + var found = await finder.FindDataAsync( + mapper, new Message(targetId), CancellationToken.None); + + Assert.NotNull(found); + Assert.Equal(targetId, found!.Data.CorrelationId); + + // DeepClone.Clone runs exactly once on the matched item; Newtonsoft visits the Name getter + // once during serialization. The tight bound (≤ 2) makes a partial regression to + // clone-per-candidate visible — that path would push the count into the dozens. + Assert.True( + CountingProcessManagerData.GetterCount <= 2, + $"Expected at most 2 getter reads (clone of matched item only), got {CountingProcessManagerData.GetterCount}"); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/InMemory/InMemoryProcessManagerFinderConcurrencyTests.cs b/src/ServiceConnect.UnitTests/Persistence/InMemory/InMemoryProcessManagerFinderConcurrencyTests.cs new file mode 100644 index 000000000..c6e3b2582 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/InMemory/InMemoryProcessManagerFinderConcurrencyTests.cs @@ -0,0 +1,223 @@ +using System; +using System.Collections.Generic; +using System.Linq; +using System.Threading; +using System.Threading.Tasks; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Exceptions; +using ServiceConnect.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.InMemory; + +/// +/// Concurrency exercises for . The finder +/// uses a reader/writer lock and optimistic version checking — a busted version +/// gate would silently lose saga updates under concurrent fan-in. +/// +public class InMemoryProcessManagerFinderConcurrencyTests +{ + private static IProcessManagerPropertyMapper BuildMapper() + { + var mapper = new TestProcessManagerPropertyMapper(); + mapper.ConfigureMapping(m => m.CorrelationId, pm => pm.CorrelationId); + return mapper; + } + + [Fact] + public async Task ParallelInsert_DistinctIds_AllPersist() + { + const int writers = 16; + const int perWriter = 50; + var finder = new InMemoryProcessManagerFinder(new ProcessManagerPredicateCache(), new InMemoryPersistenceState(TimeProvider.System)); + var mapper = BuildMapper(); + + var ids = Enumerable.Range(0, writers * perWriter).Select(idx => Guid.NewGuid()).ToArray(); + + var tasks = Enumerable.Range(0, writers).Select(w => Task.Run(async () => + { + for (var i = 0; i < perWriter; i++) + { + var data = new TestData { CorrelationId = ids[(w * perWriter) + i], Name = $"w{w}-i{i}" }; + await finder.InsertDataAsync(data, CancellationToken.None); + } + })).ToArray(); + + await Task.WhenAll(tasks); + + // Every id must be findable. + foreach (var id in ids) + { + var found = await finder.FindDataAsync(mapper, new Message(id), CancellationToken.None); + Assert.NotNull(found); + } + } + + [Fact] + public async Task ParallelInsert_SameCorrelationId_OneSucceedsRestThrowConcurrency() + { + // The InMemory finder rejects duplicate ids with ConcurrencyException — matching + // the Mongo finder so callers (and ProcessManagerProcessor's retry loop, which + // only retries on ConcurrencyException) see a consistent contract across persistors. + var finder = new InMemoryProcessManagerFinder(new ProcessManagerPredicateCache(), new InMemoryPersistenceState(TimeProvider.System)); + var corrId = Guid.NewGuid(); + const int contenders = 16; + var successes = 0; + var conflicts = 0; + var unexpected = 0; + + var tasks = Enumerable.Range(0, contenders).Select(_ => Task.Run(async () => + { + try + { + await finder.InsertDataAsync( + new TestData { CorrelationId = corrId, Name = "first-or-loser" }, + CancellationToken.None); + Interlocked.Increment(ref successes); + } + catch (ConcurrencyException) + { + Interlocked.Increment(ref conflicts); + } + catch + { + Interlocked.Increment(ref unexpected); + } + })).ToArray(); + + await Task.WhenAll(tasks); + + Assert.Equal(1, successes); + Assert.Equal(contenders - 1, conflicts); + Assert.Equal(0, unexpected); + } + + [Fact] + public async Task ParallelUpdate_OnSameRecord_ExactlyOneWinsPerVersion() + { + // Optimistic concurrency: many workers each have version=1 in hand. Exactly one + // wins per round; the rest must surface ConcurrencyException so the caller + // (typically ProcessManagerProcessor) can re-read and retry. + var finder = new InMemoryProcessManagerFinder(new ProcessManagerPredicateCache(), new InMemoryPersistenceState(TimeProvider.System)); + var mapper = BuildMapper(); + var corrId = Guid.NewGuid(); + + await finder.InsertDataAsync( + new TestData { CorrelationId = corrId, Name = "initial" }, + CancellationToken.None); + + const int contenders = 16; + var successes = 0; + var conflicts = 0; + + var tasks = Enumerable.Range(0, contenders).Select(i => Task.Run(async () => + { + try + { + await finder.UpdateDataAsync(new MemoryData + { + Data = new TestData { CorrelationId = corrId, Name = $"upd-{i}" }, + Version = 1, + }, CancellationToken.None); + Interlocked.Increment(ref successes); + } + catch (ConcurrencyException) + { + Interlocked.Increment(ref conflicts); + } + })).ToArray(); + + await Task.WhenAll(tasks); + + Assert.Equal(1, successes); + Assert.Equal(contenders - 1, conflicts); + + // After exactly one successful update the stored version is 2. + var found = await finder.FindDataAsync(mapper, new Message(corrId), CancellationToken.None); + Assert.NotNull(found); + Assert.Equal(2L, ((MemoryData)found).Version); + } + + [Fact] + public async Task ParallelDelete_OnSameRecord_OnlyOneSucceeds_RestThrowConcurrency() + { + var finder = new InMemoryProcessManagerFinder(new ProcessManagerPredicateCache(), new InMemoryPersistenceState(TimeProvider.System)); + var corrId = Guid.NewGuid(); + await finder.InsertDataAsync( + new TestData { CorrelationId = corrId, Name = "doomed" }, + CancellationToken.None); + + const int contenders = 16; + var successes = 0; + var conflicts = 0; + + var tasks = Enumerable.Range(0, contenders).Select(_ => Task.Run(async () => + { + try + { + await finder.DeleteDataAsync(new MemoryData + { + Data = new TestData { CorrelationId = corrId, Name = "doomed" }, + Version = 1, + }, CancellationToken.None); + Interlocked.Increment(ref successes); + } + catch (ConcurrencyException) + { + Interlocked.Increment(ref conflicts); + } + })).ToArray(); + + await Task.WhenAll(tasks); + + Assert.Equal(1, successes); + Assert.Equal(contenders - 1, conflicts); + } + + [Fact] + public async Task ParallelInsertAndFind_NoExceptions_AndFindOnlySeesCommittedRows() + { + // Many writers insert distinct rows while readers concurrently call FindDataAsync. + // The reader must either find the row (after the writer commits) or not find it + // (before the commit) — never throw because of a half-published row. + const int writers = 8; + const int perWriter = 200; + + var finder = new InMemoryProcessManagerFinder(new ProcessManagerPredicateCache(), new InMemoryPersistenceState(TimeProvider.System)); + var mapper = BuildMapper(); + var ids = Enumerable.Range(0, writers * perWriter).Select(idx => Guid.NewGuid()).ToArray(); + + var writerTasks = Enumerable.Range(0, writers).Select(w => Task.Run(async () => + { + for (var i = 0; i < perWriter; i++) + { + await finder.InsertDataAsync( + new TestData { CorrelationId = ids[(w * perWriter) + i], Name = $"w{w}-i{i}" }, + CancellationToken.None); + } + })).ToArray(); + + var readerStop = new CancellationTokenSource(); + var readerTasks = Enumerable.Range(0, 4).Select(readerIdx => Task.Run(async () => + { + var rng = new Random(Environment.TickCount); + while (!readerStop.Token.IsCancellationRequested) + { + var probe = ids[rng.Next(ids.Length)]; + var probed = await finder.FindDataAsync(mapper, new Message(probe), CancellationToken.None); + _ = (probed, readerIdx); + } + })).ToArray(); + + await Task.WhenAll(writerTasks); + readerStop.Cancel(); + var readerEx = await Record.ExceptionAsync(() => Task.WhenAll(readerTasks)); + Assert.Null(readerEx); + + // After writers complete, every id is findable. + foreach (var id in ids) + { + Assert.NotNull(await finder.FindDataAsync(mapper, new Message(id), CancellationToken.None)); + } + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/InMemory/InMemoryProcessManagerFinderTests.cs b/src/ServiceConnect.UnitTests/Persistence/InMemory/InMemoryProcessManagerFinderTests.cs new file mode 100644 index 000000000..4c961566d --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/InMemory/InMemoryProcessManagerFinderTests.cs @@ -0,0 +1,812 @@ +using System; +using System.Collections.Generic; +using System.Threading; +using System.Threading.Tasks; +using Microsoft.Extensions.Time.Testing; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Exceptions; +using ServiceConnect.Persistence.InMemory; +using ServiceConnect.UnitTests.Fakes.Messages; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.InMemory; + +public class TestData : IProcessManagerData +{ + public Guid CorrelationId { get; set; } + public string Name { get; set; } = ""; +} + +public class NonJsonRoundTrippableTestData : IProcessManagerData +{ + public Guid CorrelationId { get; set; } + // System.Type is not round-trippable through System.Text.Json — there's no built-in + // converter for RuntimeType. Saga authors who keep reflection types in state must + // mark them [JsonIgnore] (or store a name/string surrogate). The persistor's deep + // clone uses STJ, so the same opt-out applies as for any other STJ-unsupported type. + [System.Text.Json.Serialization.JsonIgnore] + public Type ValueType { get; set; } = typeof(object); +} + +public class NoPublicParameterlessCtorTestData : IProcessManagerData +{ + private NoPublicParameterlessCtorTestData() { } + + public NoPublicParameterlessCtorTestData(Guid correlationId, string name) + { + CorrelationId = correlationId; + Name = name; + } + + public Guid CorrelationId { get; set; } + public string Name { get; set; } = ""; +} + +public class InMemoryProcessManagerFinderTests +{ + private readonly Guid _correlationId = Guid.NewGuid(); + private readonly IProcessManagerPropertyMapper _mapper; + + public InMemoryProcessManagerFinderTests() + { + _mapper = new TestProcessManagerPropertyMapper(); + _mapper.ConfigureMapping(m => m.CorrelationId, pm => pm.CorrelationId); + } + + [Fact] + public async Task ShouldInsertData() + { + // Arrange + var data = new TestData { CorrelationId = _correlationId, Name = "TestData" }; + IProcessManagerFinder processManagerFinder = new InMemoryProcessManagerFinder(new ProcessManagerPredicateCache(), new InMemoryPersistenceState(TimeProvider.System)); + + // Act + await processManagerFinder.InsertDataAsync(data, CancellationToken.None); + + // Assert + // InsertDataAsync wraps using the runtime type, so FindDataAsync must use the same concrete T. + var found = await processManagerFinder.FindDataAsync(_mapper, new Message(_correlationId), CancellationToken.None); + Assert.NotNull(found); + Assert.Equal("TestData", found.Data.Name); + } + + [Fact] + public async Task ShouldThrowWhenInsertingDataWithExistingId() + { + // Arrange + IProcessManagerData data = new TestData { CorrelationId = _correlationId, Name = "TestData" }; + IProcessManagerData dataWithDuplicateId = new TestData { CorrelationId = _correlationId, Name = "TestDataWithDuplicateId" }; + IProcessManagerFinder processManagerFinder = new InMemoryProcessManagerFinder(new ProcessManagerPredicateCache(), new InMemoryPersistenceState(TimeProvider.System)); + await processManagerFinder.InsertDataAsync(data, CancellationToken.None); + + // Act / Assert + // ConcurrencyException matches the Mongo finder's contract for duplicate-key insert + // so callers can compensate uniformly across persistors. + await Assert.ThrowsAsync(() => processManagerFinder.InsertDataAsync(dataWithDuplicateId, CancellationToken.None)); + } + + [Fact] + public async Task ShouldUpdateData() + { + // Arrange + IProcessManagerData data = new TestData { CorrelationId = _correlationId, Name = "TestData" }; + IProcessManagerData dataUpdated = new TestData { CorrelationId = _correlationId, Name = "TestDataUpdated" }; + IProcessManagerFinder processManagerFinder = new InMemoryProcessManagerFinder(new ProcessManagerPredicateCache(), new InMemoryPersistenceState(TimeProvider.System)); + await processManagerFinder.InsertDataAsync(data, CancellationToken.None); + + // Act + await processManagerFinder.UpdateDataAsync(new MemoryData { Data = dataUpdated, Version = 1 }, CancellationToken.None); + + // Assert + var found = await processManagerFinder.FindDataAsync(_mapper, new Message(_correlationId), CancellationToken.None); + Assert.NotNull(found); + Assert.Equal("TestDataUpdated", ((TestData)found.Data).Name); + } + + [Fact] + public async Task FindDataAsync_ReturnsDetachedCopy_AndDoesNotLeakMutationsWithoutUpdate() + { + // Arrange + var data = new TestData { CorrelationId = _correlationId, Name = "Original" }; + IProcessManagerFinder processManagerFinder = new InMemoryProcessManagerFinder(new ProcessManagerPredicateCache(), new InMemoryPersistenceState(TimeProvider.System)); + await processManagerFinder.InsertDataAsync(data, CancellationToken.None); + + // Act + var loaded = await processManagerFinder.FindDataAsync(_mapper, new Message(_correlationId), CancellationToken.None); + Assert.NotNull(loaded); + loaded.Data.Name = "Mutated"; + + var reloaded = await processManagerFinder.FindDataAsync(_mapper, new Message(_correlationId), CancellationToken.None); + + // Assert + Assert.NotNull(reloaded); + Assert.Equal("Original", reloaded.Data.Name); + } + + [Fact] + public async Task FindDataAsync_TypedRead_ReturnsDetachedCopy_AndDoesNotLeakMutationsWithoutUpdate() + { + // Arrange + var data = new TestData { CorrelationId = _correlationId, Name = "Original" }; + IProcessManagerFinder processManagerFinder = new InMemoryProcessManagerFinder(new ProcessManagerPredicateCache(), new InMemoryPersistenceState(TimeProvider.System)); + await processManagerFinder.InsertDataAsync(data, CancellationToken.None); + + // Act + var loaded = await processManagerFinder.FindDataAsync(_mapper, new Message(_correlationId), CancellationToken.None); + Assert.NotNull(loaded); + loaded.Data.Name = "Mutated"; + + var reloaded = await processManagerFinder.FindDataAsync(_mapper, new Message(_correlationId), CancellationToken.None); + + // Assert + Assert.NotNull(reloaded); + Assert.Equal("Original", reloaded.Data.Name); + } + + [Fact] + public async Task FindDataAsync_TypedRead_SupportsTypesWithBsonIgnoredReflectionFields() + { + // Saga types may carry fields the serializer cannot round-trip (here, + // System.Type, whose CLR backing RuntimeType has no invokable parameterless + // ctor for BsonClassMap to construct on deserialize). Marking them BsonIgnore + // lets the rest of the saga round-trip safely; the ignored field comes back + // at its declared default, which is the correct contract once the persistor + // is decoupled from a serializer that special-cased reflection types. + var data = new NonJsonRoundTrippableTestData + { + CorrelationId = _correlationId, + ValueType = typeof(TestData) + }; + IProcessManagerFinder processManagerFinder = new InMemoryProcessManagerFinder(new ProcessManagerPredicateCache(), new InMemoryPersistenceState(TimeProvider.System)); + await processManagerFinder.InsertDataAsync(data, CancellationToken.None); + + var found = await processManagerFinder.FindDataAsync(_mapper, new Message(_correlationId), CancellationToken.None); + + Assert.NotNull(found); + Assert.Equal(_correlationId, found.Data.CorrelationId); + // The BsonIgnore'd reflection field is reset to the field's declared default. + Assert.Equal(typeof(object), found.Data.ValueType); + } + + [Fact] + public async Task FindDataAsync_TypedRead_SupportsRuntimeTypesWithoutPublicParameterlessConstructor() + { + // Arrange + var data = new NoPublicParameterlessCtorTestData(_correlationId, "Original"); + IProcessManagerFinder processManagerFinder = new InMemoryProcessManagerFinder(new ProcessManagerPredicateCache(), new InMemoryPersistenceState(TimeProvider.System)); + await processManagerFinder.InsertDataAsync(data, CancellationToken.None); + + // Act + var found = await processManagerFinder.FindDataAsync(_mapper, new Message(_correlationId), CancellationToken.None); + + // Assert + Assert.NotNull(found); + Assert.Equal("Original", found.Data.Name); + } + + [Fact] + public async Task ShouldThrowWhenUpdatingDataThatDoesNotExist() + { + // Arrange + IProcessManagerData data = new TestData { CorrelationId = _correlationId, Name = "TestData" }; + IProcessManagerFinder processManagerFinder = new InMemoryProcessManagerFinder(new ProcessManagerPredicateCache(), new InMemoryPersistenceState(TimeProvider.System)); + + // Act / Assert + await Assert.ThrowsAsync(() => processManagerFinder.UpdateDataAsync(new MemoryData { Data = data }, CancellationToken.None)); + } + + [Fact] + public async Task ShouldThrowConcurrencyExceptionWhenUpdatingStaleVersion() + { + // Arrange + var data1 = new TestData { CorrelationId = _correlationId, Name = "TestData1" }; + IProcessManagerFinder processManagerFinder = new InMemoryProcessManagerFinder(new ProcessManagerPredicateCache(), new InMemoryPersistenceState(TimeProvider.System)); + await processManagerFinder.InsertDataAsync(data1, CancellationToken.None); + + var foundData1 = (MemoryData)(await processManagerFinder.FindDataAsync(_mapper, new Message(_correlationId), CancellationToken.None))!; + var foundData2 = (MemoryData)(await processManagerFinder.FindDataAsync(_mapper, new Message(_correlationId), CancellationToken.None))!; + + var foundData1Temp = new MemoryData { Data = foundData1.Data, Version = foundData1.Version }; + var foundData2Temp = new MemoryData { Data = foundData2.Data, Version = foundData2.Version }; + + await processManagerFinder.UpdateDataAsync(foundData1Temp, CancellationToken.None); // first update should be fine + + // Act / Assert — second update is a stale-version conflict; ProcessManagerProcessor + // only retries on ConcurrencyException, so the in-memory finder must raise that type + // to match MongoDbProcessManagerFinder's contract. + await Assert.ThrowsAsync(() => processManagerFinder.UpdateDataAsync(foundData2Temp, CancellationToken.None)); + } + + [Fact] + public async Task ShouldDeleteData() + { + // Arrange + var data = new TestData { CorrelationId = _correlationId, Name = "TestData" }; + IProcessManagerFinder processManagerFinder = new InMemoryProcessManagerFinder(new ProcessManagerPredicateCache(), new InMemoryPersistenceState(TimeProvider.System)); + await processManagerFinder.InsertDataAsync(data, CancellationToken.None); + var loaded = await processManagerFinder.FindDataAsync(_mapper, new Message(_correlationId), CancellationToken.None); + Assert.NotNull(loaded); + + // Act + await processManagerFinder.DeleteDataAsync(loaded, CancellationToken.None); + + // Assert + Assert.Null(await processManagerFinder.FindDataAsync(_mapper, new Message(_correlationId), CancellationToken.None)); + } + + [Fact] + public async Task DeleteDataAsync_WithStaleVersion_ThrowsConcurrencyException() + { + // Arrange + IProcessManagerFinder finder = new InMemoryProcessManagerFinder(new ProcessManagerPredicateCache(), new InMemoryPersistenceState(TimeProvider.System)); + await finder.InsertDataAsync(new TestData { CorrelationId = _correlationId, Name = "v1" }, CancellationToken.None); + var stale = (MemoryData)(await finder.FindDataAsync(_mapper, new Message(_correlationId), CancellationToken.None))!; + + // Bump the stored version via a successful update so `stale` is behind. + await finder.UpdateDataAsync(new MemoryData + { + Data = new TestData { CorrelationId = _correlationId, Name = "v2" }, + Version = stale.Version + }, CancellationToken.None); + + // Act / Assert — delete with the stale version is a conflict, not a silent no-op. + await Assert.ThrowsAsync( + () => finder.DeleteDataAsync(stale, CancellationToken.None)); + + // The record must still be present. + Assert.NotNull(await finder.FindDataAsync(_mapper, new Message(_correlationId), CancellationToken.None)); + } + + [Fact] + public async Task DeleteDataAsync_WhenKeyMissing_ThrowsConcurrencyException() + { + // Matches the UpdateDataAsync contract: deleting a record that no longer exists + // is a conflict (another consumer already completed the saga), not a silent no-op. + IProcessManagerFinder finder = new InMemoryProcessManagerFinder(new ProcessManagerPredicateCache(), new InMemoryPersistenceState(TimeProvider.System)); + var stub = new MemoryData + { + Data = new TestData { CorrelationId = _correlationId, Name = "ghost" }, + Version = 1 + }; + + await Assert.ThrowsAsync( + () => finder.DeleteDataAsync(stub, CancellationToken.None)); + } + + [Fact] + public async Task ShouldReturnNullWhenDataNotFound() + { + // Arrange + IProcessManagerFinder processManagerFinder = new InMemoryProcessManagerFinder(new ProcessManagerPredicateCache(), new InMemoryPersistenceState(TimeProvider.System)); + + // Act + var result = await processManagerFinder.FindDataAsync(_mapper, new Message(_correlationId), CancellationToken.None); + + // Assert + Assert.Null(result); + } + + // --- Timeout tests --- + + private static TimeoutData MakeTimeoutData(Guid id, DateTimeOffset time) => new() + { + Id = id, + Time = time, + Headers = new Dictionary() + }; + + [Fact] + public async Task InsertTimeout_StoresTimeoutData() + { + ITimeoutStore finder = new InMemoryTimeoutStore(new InMemoryPersistenceOptions()); + var id = Guid.NewGuid(); + await finder.InsertTimeoutAsync(MakeTimeoutData(id, DateTimeOffset.UtcNow.AddHours(-1)), CancellationToken.None); + + var batch = await finder.GetTimeoutsBatchAsync(cancellationToken: CancellationToken.None); + Assert.Single(batch.DueTimeouts); + Assert.Equal(id, batch.DueTimeouts[0].Id); + } + + [Fact] + public async Task InsertTimeout_ThrowsWhenDuplicateId() + { + ITimeoutStore finder = new InMemoryTimeoutStore(new InMemoryPersistenceOptions()); + var id = Guid.NewGuid(); + await finder.InsertTimeoutAsync(MakeTimeoutData(id, DateTimeOffset.UtcNow.AddMinutes(5)), CancellationToken.None); + + await Assert.ThrowsAsync(() => finder.InsertTimeoutAsync(MakeTimeoutData(id, DateTimeOffset.UtcNow.AddMinutes(10)), CancellationToken.None)); + } + + [Fact] + public async Task GetTimeoutsBatch_WhenNoTimeouts_ReturnEmptyDueList() + { + ITimeoutStore finder = new InMemoryTimeoutStore(new InMemoryPersistenceOptions()); + + var batch = await finder.GetTimeoutsBatchAsync(cancellationToken: CancellationToken.None); + + Assert.Empty(batch.DueTimeouts); + } + + [Fact] + public async Task GetTimeoutsBatch_FutureTimeout_NotInDueList() + { + ITimeoutStore finder = new InMemoryTimeoutStore(new InMemoryPersistenceOptions()); + await finder.InsertTimeoutAsync(MakeTimeoutData(Guid.NewGuid(), DateTimeOffset.UtcNow.AddHours(1)), CancellationToken.None); + + var batch = await finder.GetTimeoutsBatchAsync(cancellationToken: CancellationToken.None); + + Assert.Empty(batch.DueTimeouts); + } + + [Fact] + public async Task GetTimeoutsBatch_PastTimeout_IsInDueList() + { + ITimeoutStore finder = new InMemoryTimeoutStore(new InMemoryPersistenceOptions()); + await finder.InsertTimeoutAsync(MakeTimeoutData(Guid.NewGuid(), DateTimeOffset.UtcNow.AddSeconds(-1)), CancellationToken.None); + + var batch = await finder.GetTimeoutsBatchAsync(cancellationToken: CancellationToken.None); + + Assert.Single(batch.DueTimeouts); + } + + [Fact] + public async Task RemoveDispatchedTimeout_RemovesTimeoutFromBatch() + { + ITimeoutStore finder = new InMemoryTimeoutStore(new InMemoryPersistenceOptions()); + var id = Guid.NewGuid(); + await finder.InsertTimeoutAsync(MakeTimeoutData(id, DateTimeOffset.UtcNow.AddSeconds(-1)), CancellationToken.None); + + await finder.RemoveDispatchedTimeoutAsync(id, cancellationToken: CancellationToken.None); + + var batch = await finder.GetTimeoutsBatchAsync(cancellationToken: CancellationToken.None); + Assert.Empty(batch.DueTimeouts); + } + + [Fact] + public async Task RemoveDispatchedTimeout_WhenIdDoesNotExist_DoesNotThrow() + { + ITimeoutStore finder = new InMemoryTimeoutStore(new InMemoryPersistenceOptions()); + + var ex = await Record.ExceptionAsync(() => finder.RemoveDispatchedTimeoutAsync(Guid.NewGuid(), cancellationToken: CancellationToken.None)); + + Assert.Null(ex); + } + + // --- Pre-cancelled token tests --- + + [Fact] + public async Task FindDataAsync_PreCancelledToken_ThrowsOCE() + { + var finder = new InMemoryProcessManagerFinder(new ProcessManagerPredicateCache(), new InMemoryPersistenceState(TimeProvider.System)); + using var cts = new CancellationTokenSource(); + cts.Cancel(); + + await Assert.ThrowsAnyAsync( + () => finder.FindDataAsync(_mapper, new Message(_correlationId), cts.Token)); + } + + [Fact] + public async Task InsertDataAsync_PreCancelledToken_ThrowsOCE() + { + var finder = new InMemoryProcessManagerFinder(new ProcessManagerPredicateCache(), new InMemoryPersistenceState(TimeProvider.System)); + using var cts = new CancellationTokenSource(); + cts.Cancel(); + + await Assert.ThrowsAnyAsync( + () => finder.InsertDataAsync(new TestData { CorrelationId = _correlationId }, cts.Token)); + } + + [Fact] + public async Task UpdateDataAsync_PreCancelledToken_ThrowsOCE() + { + var finder = new InMemoryProcessManagerFinder(new ProcessManagerPredicateCache(), new InMemoryPersistenceState(TimeProvider.System)); + using var cts = new CancellationTokenSource(); + cts.Cancel(); + + await Assert.ThrowsAnyAsync( + () => finder.UpdateDataAsync(new MemoryData { Data = new TestData { CorrelationId = _correlationId }, Version = 1 }, cts.Token)); + } + + [Fact] + public async Task DeleteDataAsync_PreCancelledToken_ThrowsOCE() + { + var finder = new InMemoryProcessManagerFinder(new ProcessManagerPredicateCache(), new InMemoryPersistenceState(TimeProvider.System)); + using var cts = new CancellationTokenSource(); + cts.Cancel(); + + await Assert.ThrowsAnyAsync( + () => finder.DeleteDataAsync(new MemoryData { Data = new TestData { CorrelationId = _correlationId } }, cts.Token)); + } + + [Fact] + public async Task InsertTimeoutAsync_PreCancelledToken_ThrowsOCE() + { + var finder = new InMemoryTimeoutStore(new InMemoryPersistenceOptions()); + using var cts = new CancellationTokenSource(); + cts.Cancel(); + + await Assert.ThrowsAnyAsync( + () => finder.InsertTimeoutAsync(MakeTimeoutData(Guid.NewGuid(), DateTimeOffset.UtcNow.AddMinutes(5)), cts.Token)); + } + + [Fact] + public async Task GetTimeoutsBatchAsync_PreCancelledToken_ThrowsOCE() + { + var finder = new InMemoryTimeoutStore(new InMemoryPersistenceOptions()); + using var cts = new CancellationTokenSource(); + cts.Cancel(); + + await Assert.ThrowsAnyAsync( + () => finder.GetTimeoutsBatchAsync(cancellationToken: cts.Token)); + } + + [Fact] + public async Task RemoveDispatchedTimeoutAsync_PreCancelledToken_ThrowsOCE() + { + var finder = new InMemoryTimeoutStore(new InMemoryPersistenceOptions()); + using var cts = new CancellationTokenSource(); + cts.Cancel(); + + await Assert.ThrowsAnyAsync( + () => finder.RemoveDispatchedTimeoutAsync(Guid.NewGuid(), cancellationToken: cts.Token)); + } + + [Fact] + public async Task FindDataAsync_IgnoresFallbackEntriesWithoutIntegerVersion() + { + var cache = new ProcessManagerPredicateCache(); + var state = new InMemoryPersistenceState(); + var finder = new InMemoryProcessManagerFinder(cache, state); + var correlationId = Guid.NewGuid(); + var mapper = new TestProcessManagerPropertyMapper(); + mapper.ConfigureMapping(data => data.CorrelationId, message => message.CorrelationId); + + state.Provider.Add(correlationId.ToString(), new LegacyMemoryData + { + Data = new TestData { CorrelationId = correlationId }, + Version = null + }, DateTimeOffset.UtcNow.AddMinutes(5)); + + var exception = await Record.ExceptionAsync(() => finder.FindDataAsync( + mapper, + new FakeMessage1(correlationId), + CancellationToken.None)); + + Assert.Null(exception); + } + + [Fact] + public void InMemoryPersistenceState_UsesReaderWriterLockSlim() + { + Assert.Equal( + typeof(System.Threading.ReaderWriterLockSlim), + typeof(InMemoryPersistenceState).GetProperty(nameof(InMemoryPersistenceState.SyncRoot))!.PropertyType); + } + + /// + /// Saga data with a nested mutable collection, used to prove that the in-memory + /// finder deep-clones rather than aliasing caller state. + /// + public class SagaWithNested : IProcessManagerData + { + public Guid CorrelationId { get; set; } + public List Tags { get; set; } = []; + } + + [Fact] + public async Task InsertDataAsync_ThenMutateCallerObject_DoesNotCorruptStoredEntry() + { + // Insert must deep-clone so that post-insert mutation of a nested + // collection on the caller's instance does not leak into the stored saga. + var data = new SagaWithNested { CorrelationId = Guid.NewGuid(), Tags = { "original" } }; + IProcessManagerFinder finder = new InMemoryProcessManagerFinder(new ProcessManagerPredicateCache(), new InMemoryPersistenceState(TimeProvider.System)); + await finder.InsertDataAsync(data, CancellationToken.None); + + data.Tags.Add("after-insert-mutation"); + + var mapper = new TestProcessManagerPropertyMapper(); + mapper.ConfigureMapping(d => d.CorrelationId, m => m.CorrelationId); + var found = await finder.FindDataAsync(mapper, new Message(data.CorrelationId), CancellationToken.None); + + Assert.NotNull(found); + Assert.Equal(new[] { "original" }, found.Data.Tags); + } + + [Fact] + public async Task UpdateDataAsync_ThenMutateCallerObject_DoesNotCorruptStoredEntry() + { + // Update must deep-clone so the caller's subsequent mutation of a + // nested collection does not bleed into the stored snapshot. + var initial = new SagaWithNested { CorrelationId = Guid.NewGuid(), Tags = { "first" } }; + IProcessManagerFinder finder = new InMemoryProcessManagerFinder(new ProcessManagerPredicateCache(), new InMemoryPersistenceState(TimeProvider.System)); + await finder.InsertDataAsync(initial, CancellationToken.None); + + var updated = new SagaWithNested { CorrelationId = initial.CorrelationId, Tags = { "second" } }; + await finder.UpdateDataAsync( + new MemoryData { Data = updated, Version = 1 }, + CancellationToken.None); + + updated.Tags.Add("post-update-mutation"); + + var mapper = new TestProcessManagerPropertyMapper(); + mapper.ConfigureMapping(d => d.CorrelationId, m => m.CorrelationId); + var found = await finder.FindDataAsync(mapper, new Message(initial.CorrelationId), CancellationToken.None); + + Assert.NotNull(found); + Assert.Equal(new[] { "second" }, found.Data.Tags); + } + + [Fact] + public void InMemoryPersistenceState_Dispose_ReleasesSyncRoot_AndIsIdempotent() + { + // SyncRoot is a ReaderWriterLockSlim that holds kernel handles. Dispose + // must release it exactly once so rebuilding the DI container does not + // leak one RWSL per container, and repeat Dispose calls must be a no-op. + var state = new InMemoryPersistenceState(); + var syncRoot = state.SyncRoot; + + state.Dispose(); + + // Re-entering a disposed RWSL throws ObjectDisposedException — observable + // proof that Dispose released the kernel resource. + Assert.Throws(syncRoot.EnterReadLock); + + var second = Record.Exception(state.Dispose); + Assert.Null(second); + } + + // --- Saga lifetime is caller-managed: no background TTL --- + + [Fact] + public async Task Inserted_SagaStillResolvable_After3Days() + { + // Saga state must persist until Delete regardless of elapsed time. + // Background expiry must never silently drop a live saga. + var timeProvider = new FakeTimeProvider(new DateTimeOffset(2026, 4, 21, 12, 0, 0, TimeSpan.Zero)); + var finder = new InMemoryProcessManagerFinder(new ProcessManagerPredicateCache(), timeProvider); + var data = new TestData { CorrelationId = _correlationId, Name = "LongLivedSaga" }; + await finder.InsertDataAsync(data, CancellationToken.None); + + timeProvider.Advance(TimeSpan.FromDays(3)); + + var found = await finder.FindDataAsync(_mapper, new Message(_correlationId), CancellationToken.None); + Assert.NotNull(found); + Assert.Equal("LongLivedSaga", found.Data.Name); + } + + [Fact] + public async Task Updated_SagaStillResolvable_After3DaysFromInsert() + { + var timeProvider = new FakeTimeProvider(new DateTimeOffset(2026, 4, 21, 12, 0, 0, TimeSpan.Zero)); + var finder = new InMemoryProcessManagerFinder(new ProcessManagerPredicateCache(), timeProvider); + await finder.InsertDataAsync(new TestData { CorrelationId = _correlationId, Name = "v1" }, CancellationToken.None); + + timeProvider.Advance(TimeSpan.FromDays(1)); + + var loaded = (MemoryData)(await finder.FindDataAsync(_mapper, new Message(_correlationId), CancellationToken.None))!; + await finder.UpdateDataAsync(new MemoryData + { + Data = new TestData { CorrelationId = _correlationId, Name = "v2" }, + Version = loaded.Version + }, CancellationToken.None); + + timeProvider.Advance(TimeSpan.FromDays(2)); + + var found = await finder.FindDataAsync(_mapper, new Message(_correlationId), CancellationToken.None); + Assert.NotNull(found); + Assert.Equal("v2", found.Data.Name); + } + + // Keys() snapshot + a concurrent DeleteDataAsync on the saga store between + // snapshot and per-key TryGet(key) can return false; the per-element scan + // must tolerate the race rather than crash. + [Fact] + public async Task FindDataAsync_ConcurrentSagaRemovalDuringScan_DoesNotNre() + { + // Arrange: use InMemoryPersistenceState directly so we hold the SagaProvider ref. + // The finder stores and scans via SagaProvider; direct removals via IKeyValueStore + // on that same store simulate a concurrent deletion racing the scan loop. + var cache = new ProcessManagerPredicateCache(); + var sharedState = new InMemoryPersistenceState(TimeProvider.System); + var finder = new InMemoryProcessManagerFinder(cache, sharedState); + var kvStore = (IKeyValueStore)sharedState.SagaProvider; + + // Seed a batch of items so the scan loop has multiple keys to traverse. + const int itemCount = 50; + var ids = Enumerable.Range(0, itemCount).Select(_ => Guid.NewGuid()).ToArray(); + foreach (var id in ids) + { + await finder.InsertDataAsync(new TestData { CorrelationId = id, Name = "seed" }, CancellationToken.None); + } + + var mapper = new TestProcessManagerPropertyMapper(); + mapper.ConfigureMapping(pm => pm.CorrelationId, m => m.CorrelationId); + + // Act: run many concurrent scans and concurrent removals directly against SagaProvider, + // which is NOT protected by the finder's ReaderWriterLockSlim. + var exceptions = new System.Collections.Concurrent.ConcurrentBag(); + var iterations = 200; + + var scanTasks = Enumerable.Range(0, iterations).Select(_ => Task.Run(async () => + { + try + { + // Pick a random id; result may be null if removed — that is fine. + var id = ids[Random.Shared.Next(ids.Length)]; + await finder.FindDataAsync(mapper, new Message(id), CancellationToken.None); + } + catch (Exception ex) + { + exceptions.Add(ex); + } + })); + + var removeTasks = Enumerable.Range(0, iterations).Select(_ => Task.Run(() => + { + try + { + // Remove random keys via the IKeyValueStore facet of SagaProvider, bypassing + // the finder's ReaderWriterLockSlim to simulate the race. + foreach (var k in kvStore.Keys().Take(3).ToList()) + { + kvStore.Remove(k); + } + } + catch (Exception ex) + { + exceptions.Add(ex); + } + })); + + await Task.WhenAll(scanTasks.Concat(removeTasks)); + + Assert.Empty(exceptions); + } + + // UpdateDataAsync and DeleteDataAsync have the same Contains→TryGet race window. A mock + // provider whose Contains returns true but TryGet returns false deterministically exercises + // the race without any timing dependency. + + [Fact] + public async Task UpdateDataAsync_WhenProviderReturnsFalseFromTryGet_ThrowsConcurrencyException() + { + // Arrange: saga provider whose Contains says yes but TryGet returns false, + // simulating a concurrent removal between Contains and TryGet inside the saga finder. + // The finder uses SagaProvider exclusively; publicProvider is a real instance. + var sagaProvider = new Mock(); + sagaProvider.Setup(p => p.Contains(It.IsAny())).Returns(true); + object? nullOut = null; + sagaProvider.Setup(p => p.TryGet(It.IsAny(), out nullOut)).Returns(false); + + var state = new InMemoryPersistenceState(new CacheProvider(), sagaProvider.Object); + var finder = new InMemoryProcessManagerFinder(new ProcessManagerPredicateCache(), state); + + var pm = new MemoryData + { + Data = new TestData { CorrelationId = Guid.NewGuid() }, + Version = 0 + }; + + // Act + Assert: must throw ConcurrencyException, NOT NullReferenceException. + var ex = await Assert.ThrowsAsync(() => finder.UpdateDataAsync(pm)); + Assert.Contains("concurrently removed", ex.Message); + } + + [Fact] + public async Task DeleteDataAsync_WhenProviderReturnsFalseFromTryGet_ThrowsConcurrencyException() + { + // Arrange: saga provider whose Contains says yes but TryGet returns false, + // simulating a concurrent removal between Contains and TryGet inside the saga finder. + // The finder uses SagaProvider exclusively; publicProvider is a real instance. + var sagaProvider = new Mock(); + sagaProvider.Setup(p => p.Contains(It.IsAny())).Returns(true); + object? nullOut = null; + sagaProvider.Setup(p => p.TryGet(It.IsAny(), out nullOut)).Returns(false); + + var state = new InMemoryPersistenceState(new CacheProvider(), sagaProvider.Object); + var finder = new InMemoryProcessManagerFinder(new ProcessManagerPredicateCache(), state); + + var pm = new MemoryData + { + Data = new TestData { CorrelationId = Guid.NewGuid() }, + Version = 0 + }; + + // Act + Assert: must throw ConcurrencyException, NOT NullReferenceException. + var ex = await Assert.ThrowsAsync(() => finder.DeleteDataAsync(pm)); + Assert.Contains("concurrently removed", ex.Message); + } + + [Fact] + public async Task UpdateDataAsync_BumpsCallerVersion_AllowsConsecutiveUpdates() + { + // Insert a saga, find it, then do two consecutive updates on the same + // MemoryData handle. The second update must not throw ConcurrencyException. + // Mongo persistor returns the post-update document via FindOneAndUpdate; the + // InMemory persistor must reflect the new Version back to the caller's instance + // so consecutive updates with the same handle behave identically. + var correlationId = Guid.NewGuid(); + IProcessManagerFinder finder = new InMemoryProcessManagerFinder(new ProcessManagerPredicateCache(), new InMemoryPersistenceState(TimeProvider.System)); + await finder.InsertDataAsync(new TestData { CorrelationId = correlationId, Name = "v0" }, CancellationToken.None); + + var mapper = new TestProcessManagerPropertyMapper(); + mapper.ConfigureMapping(d => d.CorrelationId, m => m.CorrelationId); + + var found = await finder.FindDataAsync(mapper, new Message(correlationId), CancellationToken.None); + Assert.NotNull(found); + + // Initial version after Insert is 1; the caller's handle reflects that on Find. + Assert.Equal(1L, ((MemoryData)found!).Version); + + // First update — store goes 1 → 2; caller's handle must move in lockstep. + found.Data.Name = "v1"; + await finder.UpdateDataAsync(found, CancellationToken.None); + Assert.Equal(2L, ((MemoryData)found).Version); + + // Second update on the same handle — must not throw because the caller's + // Version was incremented to match what the store now holds. + found.Data.Name = "v2"; + await finder.UpdateDataAsync(found, CancellationToken.None); + Assert.Equal(3L, ((MemoryData)found).Version); + + // Confirm the second write was persisted. + var reloaded = await finder.FindDataAsync(mapper, new Message(correlationId), CancellationToken.None); + Assert.NotNull(reloaded); + Assert.Equal("v2", reloaded!.Data.Name); + } +} + +/// +/// Minimal IProcessManagerPropertyMapper implementation for tests, +/// replacing the old ProcessManagerPropertyMapper from ServiceConnect.Core. +/// +public class TestProcessManagerPropertyMapper : IProcessManagerPropertyMapper +{ + private readonly List _mappings = []; + public IReadOnlyList Mappings => _mappings; + + public void ConfigureMapping( + System.Linq.Expressions.Expression> processManagerProperty, + System.Linq.Expressions.Expression> messageExpression) + where TProcessManagerData : IProcessManagerData + where TMessage : Message + { + var propertiesHierarchy = new Dictionary(); + + // Extract property hierarchy from processManagerProperty + var body = processManagerProperty.Body; + if (body is System.Linq.Expressions.UnaryExpression unary) + { + body = unary.Operand; + } + + if (body is System.Linq.Expressions.MemberExpression member) + { + var propInfo = (System.Reflection.PropertyInfo)member.Member; + propertiesHierarchy[propInfo.Name] = propInfo.PropertyType; + } + + var map = new ProcessManagerToMessageMap + { + MessageType = typeof(TMessage), + PropertiesHierarchy = propertiesHierarchy, + MessageProp = BuildMessageFunc(messageExpression) + }; + + _mappings.Add(map); + } + + private static Func BuildMessageFunc( + System.Linq.Expressions.Expression> messageExpression) + { + var compiled = messageExpression.Compile(); + return obj => compiled((TMessage)obj); + } +} + +internal sealed class LegacyMemoryData +{ + public required TestData Data { get; init; } + public object? Version { get; init; } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/InMemory/InMemoryTimeoutStoreConcurrencyTests.cs b/src/ServiceConnect.UnitTests/Persistence/InMemory/InMemoryTimeoutStoreConcurrencyTests.cs new file mode 100644 index 000000000..a45f4668a --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/InMemory/InMemoryTimeoutStoreConcurrencyTests.cs @@ -0,0 +1,198 @@ +using System; +using System.Collections.Concurrent; +using System.Collections.Generic; +using System.Linq; +using System.Threading; +using System.Threading.Tasks; +using Microsoft.Extensions.Time.Testing; +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.InMemory; + +/// +/// Concurrency exercises for . Multiple +/// dispatcher polls may race on ; +/// each due timeout must be claimed by exactly one poll, and the lease state +/// must remain coherent under interleaved insert/remove/release. +/// +public class InMemoryTimeoutStoreConcurrencyTests +{ + [Fact] + public async Task ParallelInsert_DueTimeouts_AllClaimedAcrossPolls() + { + var now = new DateTimeOffset(2026, 4, 21, 12, 0, 0, TimeSpan.Zero); + var time = new FakeTimeProvider(now); + var store = new InMemoryTimeoutStore(new InMemoryPersistenceOptions(), timeProvider: time); + + const int writers = 8; + const int perWriter = 100; + const int batchSize = 25; + var ids = new ConcurrentBag(); + + var writerTasks = Enumerable.Range(0, writers).Select(workerIdx => Task.Run(async () => + { + for (var i = 0; i < perWriter; i++) + { + var id = Guid.NewGuid(); + ids.Add(id); + await store.InsertTimeoutAsync( + new TimeoutData { Id = id, Time = now.AddMinutes(-1) }, + CancellationToken.None); + } + })).ToArray(); + + await Task.WhenAll(writerTasks); + + // Drain in batches without advancing time. Each batch leases up to batchSize + // rows for 5 minutes; the next batch leases the next chunk because the lease + // hasn't expired yet. Eventually every row is leased and the batch is empty. + // Every inserted id must show up exactly once. + var seen = new HashSet(); + var totalRows = writers * perWriter; + var maxIterations = (totalRows / batchSize) + 5; + + for (var attempts = 0; attempts < maxIterations; attempts++) + { + var batch = await store.GetTimeoutsBatchAsync(batchSize); + if (batch.DueTimeouts.Count == 0) + { + break; + } + foreach (var t in batch.DueTimeouts) + { + Assert.True(seen.Add(t.Id), $"Timeout {t.Id} returned twice"); + } + } + + Assert.Equal(ids.OrderBy(g => g), seen.OrderBy(g => g)); + } + + [Fact] + public async Task ConcurrentGetBatch_DueRow_ClaimedByExactlyOneCaller() + { + // The lease guard must be tight enough that two pollers running at the same + // moment cannot both observe the same row as unlocked. + const int parallelPolls = 16; + const int rounds = 50; + + var now = new DateTimeOffset(2026, 4, 21, 12, 0, 0, TimeSpan.Zero); + var time = new FakeTimeProvider(now); + var store = new InMemoryTimeoutStore(new InMemoryPersistenceOptions(), timeProvider: time); + + for (var r = 0; r < rounds; r++) + { + var id = Guid.NewGuid(); + await store.InsertTimeoutAsync(new TimeoutData { Id = id, Time = now.AddMinutes(-1) }); + + var observers = new ConcurrentBag(); + var pollers = Enumerable.Range(0, parallelPolls).Select(_ => Task.Run(async () => + { + var batch = await store.GetTimeoutsBatchAsync(); + foreach (var t in batch.DueTimeouts) + { + observers.Add(t.LockedBy); + } + })).ToArray(); + + await Task.WhenAll(pollers); + + // Exactly one poller's session id should have claimed the row. + Assert.Single(observers); + Assert.NotEqual(Guid.Empty, observers.Single()); + + // Advance past the 5-minute lease and the row's due time so we can re-test. + time.Advance(TimeSpan.FromMinutes(10)); + await store.RemoveDispatchedTimeoutAsync(id); + } + } + + [Fact] + public async Task ParallelInsertAndRemove_StateRemainsCoherent() + { + var now = new DateTimeOffset(2026, 4, 21, 12, 0, 0, TimeSpan.Zero); + var time = new FakeTimeProvider(now); + var store = new InMemoryTimeoutStore(new InMemoryPersistenceOptions(), timeProvider: time); + + const int rounds = 500; + var inserted = new ConcurrentBag(); + + var inserter = Task.Run(async () => + { + for (var i = 0; i < rounds; i++) + { + var id = Guid.NewGuid(); + inserted.Add(id); + await store.InsertTimeoutAsync(new TimeoutData { Id = id, Time = now.AddMinutes(-1) }); + } + }); + + var remover = Task.Run(async () => + { + var rng = new Random(42); + for (var i = 0; i < rounds; i++) + { + if (inserted.Count > 0) + { + var snapshot = inserted.ToArray(); + var id = snapshot[rng.Next(snapshot.Length)]; + // Unconditional remove path — id-only contract is "remove if present". + await store.RemoveDispatchedTimeoutAsync(id); + } + await Task.Yield(); + } + }); + + var ex = await Record.ExceptionAsync(() => Task.WhenAll(inserter, remover)); + Assert.Null(ex); + + // The store is still functional after the burst: a fresh poll succeeds + // and any rows that survived are well-formed. + time.Advance(TimeSpan.FromMinutes(10)); + var residual = await store.GetTimeoutsBatchAsync(); + Assert.All(residual.DueTimeouts, t => Assert.NotEqual(Guid.Empty, t.Id)); + } + + [Fact] + public async Task LeasedRow_ReleasedConcurrentlyWithRemove_NoDeadlockOrException() + { + // After a dispatcher claims a row, two paths might race: the dispatcher + // calling RemoveDispatchedTimeoutAsync (success) versus a lease-reaper + // releasing it (also valid). Both branches must complete without throwing. + var now = new DateTimeOffset(2026, 4, 21, 12, 0, 0, TimeSpan.Zero); + var time = new FakeTimeProvider(now); + var store = new InMemoryTimeoutStore(new InMemoryPersistenceOptions(), timeProvider: time); + + const int rounds = 100; + + for (var i = 0; i < rounds; i++) + { + var id = Guid.NewGuid(); + await store.InsertTimeoutAsync(new TimeoutData { Id = id, Time = now.AddMinutes(-1) }); + + var batch = await store.GetTimeoutsBatchAsync(); + var claimed = batch.DueTimeouts.Single(); + var owner = claimed.LockedBy; + + // Race: remove-by-owner versus release-by-owner. Either order is + // acceptable as long as neither throws beyond the documented contract. + var removeTask = Task.Run(async () => + { + try { await store.RemoveDispatchedTimeoutAsync(claimed.Id, owner); } + catch (Interfaces.Exceptions.ConcurrencyException) { /* lease reaped first — fine */ } + }); + var releaseTask = Task.Run(async () => + { + try { await store.ReleaseDispatchedTimeoutAsync(claimed.Id, owner); } + catch (Interfaces.Exceptions.ConcurrencyException) { /* removed first — fine */ } + }); + + await Task.WhenAll(removeTask, releaseTask); + + // Best-effort cleanup: forget the row regardless of which path won. + await store.RemoveDispatchedTimeoutAsync(id); + time.Advance(TimeSpan.FromSeconds(1)); + } + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/InMemory/InMemoryTimeoutStoreOptionsTests.cs b/src/ServiceConnect.UnitTests/Persistence/InMemory/InMemoryTimeoutStoreOptionsTests.cs new file mode 100644 index 000000000..1532d6be6 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/InMemory/InMemoryTimeoutStoreOptionsTests.cs @@ -0,0 +1,68 @@ +using System.Reflection; +using System.Threading; +using ServiceConnect.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.InMemory; + +public class InMemoryTimeoutStoreOptionsTests +{ + [Fact] + public void Dispose_DisposesOwnedPersistenceState() + { + var options = new InMemoryPersistenceOptions { LockLeaseDuration = TimeSpan.FromMinutes(1) }; + var store = new InMemoryTimeoutStore(options); + + var stateField = typeof(InMemoryTimeoutStore).GetField("_state", BindingFlags.Instance | BindingFlags.NonPublic); + var state = stateField!.GetValue(store); + Assert.NotNull(state); + + // Reflect to grab SyncRoot — the kernel-handle-backed primitive that leaks if Dispose + // doesn't propagate. Pre-dispose: usable. Post-dispose: throws ObjectDisposedException. + var syncRootProperty = state!.GetType().GetProperty("SyncRoot"); + var syncRoot = (ReaderWriterLockSlim)syncRootProperty!.GetValue(state)!; + syncRoot.EnterReadLock(); + syncRoot.ExitReadLock(); + + store.Dispose(); + + Assert.Throws(syncRoot.EnterReadLock); + } + + [Fact] + public void Dispose_DoesNotDisposeNonOwnedPersistenceState() + { + // Internal ctor path — caller-supplied state must not be disposed by the store. + var options = new InMemoryPersistenceOptions { LockLeaseDuration = TimeSpan.FromMinutes(1) }; + + // Use reflection to invoke the internal ctor. + var stateType = typeof(InMemoryTimeoutStore).Assembly.GetType("ServiceConnect.Persistence.InMemory.InMemoryPersistenceState"); + Assert.NotNull(stateType); + var stateCtor = stateType!.GetConstructor( + BindingFlags.Instance | BindingFlags.NonPublic, + null, [typeof(TimeProvider)], null) + ?? stateType.GetConstructor( + BindingFlags.Instance | BindingFlags.Public, + null, [typeof(TimeProvider)], null); + Assert.NotNull(stateCtor); + var sharedState = stateCtor!.Invoke([null]); + + var storeCtor = typeof(InMemoryTimeoutStore).GetConstructor( + BindingFlags.Instance | BindingFlags.NonPublic, + null, [typeof(InMemoryPersistenceOptions), stateType, typeof(TimeProvider)], null); + Assert.NotNull(storeCtor); + var store = (InMemoryTimeoutStore)storeCtor!.Invoke([options, sharedState, null]); + + var syncRootProperty = stateType.GetProperty("SyncRoot"); + var syncRoot = (ReaderWriterLockSlim)syncRootProperty!.GetValue(sharedState)!; + + store.Dispose(); + + // sharedState's SyncRoot is still usable — store didn't dispose it. + syncRoot.EnterReadLock(); + syncRoot.ExitReadLock(); + + // Cleanup: dispose the shared state explicitly so this test doesn't leak the lock. + ((IDisposable)sharedState).Dispose(); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/InMemory/InMemoryTimeoutStoreTests.cs b/src/ServiceConnect.UnitTests/Persistence/InMemory/InMemoryTimeoutStoreTests.cs new file mode 100644 index 000000000..2c08e3213 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/InMemory/InMemoryTimeoutStoreTests.cs @@ -0,0 +1,333 @@ +using System; +using System.Threading.Tasks; +using Microsoft.Extensions.Time.Testing; +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.InMemory; + +public class InMemoryTimeoutStoreTests +{ + [Fact] + public async Task GetTimeoutsBatch_OnlyDueTimeouts_AreReturned() + { + var now = new DateTimeOffset(2026, 4, 18, 12, 0, 0, TimeSpan.Zero); + var time = new FakeTimeProvider(now); + var store = new InMemoryTimeoutStore(new InMemoryPersistenceOptions(), timeProvider: time); + + await store.InsertTimeoutAsync(new TimeoutData { Id = Guid.NewGuid(), Time = now.AddMinutes(-5) }); // due + await store.InsertTimeoutAsync(new TimeoutData { Id = Guid.NewGuid(), Time = now.AddMinutes(-1) }); // due + await store.InsertTimeoutAsync(new TimeoutData { Id = Guid.NewGuid(), Time = now.AddMinutes(5) }); // future + + var batch = await store.GetTimeoutsBatchAsync(); + Assert.Equal(2, batch.DueTimeouts.Count); + Assert.All(batch.DueTimeouts, timeout => + { + Assert.True(timeout.Locked); + Assert.NotEqual(Guid.Empty, timeout.LockedBy); + Assert.NotNull(timeout.LockExpiresAt); + }); + } + + [Fact] + public async Task GetTimeoutsBatch_DueTimeoutIsClaimed_AndHiddenUntilReleased() + { + var now = new DateTimeOffset(2026, 4, 18, 12, 0, 0, TimeSpan.Zero); + var time = new FakeTimeProvider(now); + var store = new InMemoryTimeoutStore(new InMemoryPersistenceOptions(), timeProvider: time); + + var id = Guid.NewGuid(); + await store.InsertTimeoutAsync(new TimeoutData { Id = id, Time = now.AddMinutes(-1) }); + + var first = await store.GetTimeoutsBatchAsync(); + var claimed = Assert.Single(first.DueTimeouts); + Assert.Equal(id, claimed.Id); + Assert.True(claimed.Locked); + Assert.NotEqual(Guid.Empty, claimed.LockedBy); + Assert.Equal(now.AddMinutes(5), claimed.LockExpiresAt); + + var second = await store.GetTimeoutsBatchAsync(); + Assert.Empty(second.DueTimeouts); + } + + [Fact] + public async Task GetTimeoutsBatch_ReturnedTimeoutMutation_DoesNotChangeStoredLeaseState() + { + var now = new DateTimeOffset(2026, 4, 18, 12, 0, 0, TimeSpan.Zero); + var time = new FakeTimeProvider(now); + var store = new InMemoryTimeoutStore(new InMemoryPersistenceOptions(), timeProvider: time); + + var id = Guid.NewGuid(); + await store.InsertTimeoutAsync(new TimeoutData { Id = id, Time = now.AddMinutes(-1) }); + + var first = await store.GetTimeoutsBatchAsync(); + var claimed = Assert.Single(first.DueTimeouts); + + claimed.Locked = false; + claimed.LockedBy = Guid.Empty; + claimed.LockExpiresAt = null; + + var second = await store.GetTimeoutsBatchAsync(); + Assert.Empty(second.DueTimeouts); + } + + [Fact] + public async Task TimeoutHeaders_MutableValues_AreIsolatedFromStoredTimeoutData() + { + var now = new DateTimeOffset(2026, 4, 18, 12, 0, 0, TimeSpan.Zero); + var time = new FakeTimeProvider(now); + var store = new InMemoryTimeoutStore(new InMemoryPersistenceOptions(), timeProvider: time); + + var id = Guid.NewGuid(); + var headerValue = new byte[] { 1, 2, 3 }; + + await store.InsertTimeoutAsync(new TimeoutData + { + Id = id, + Time = now.AddMinutes(-1), + Headers = new Dictionary { ["payload"] = headerValue }, + }); + + headerValue[0] = 9; + + var first = await store.GetTimeoutsBatchAsync(); + var claimed = Assert.Single(first.DueTimeouts); + var claimedHeader = Assert.IsType(claimed.Headers["payload"]); + Assert.Equal(new byte[] { 1, 2, 3 }, claimedHeader); + + claimedHeader[1] = 8; + + await store.ReleaseDispatchedTimeoutAsync(id); + + var second = await store.GetTimeoutsBatchAsync(); + var reclaimed = Assert.Single(second.DueTimeouts); + var reclaimedHeader = Assert.IsType(reclaimed.Headers["payload"]); + Assert.Equal(new byte[] { 1, 2, 3 }, reclaimedHeader); + } + + [Fact] + public async Task ReleaseDispatchedTimeout_ReleasedTimeoutIsReturnedAgainOnNextPoll() + { + var now = new DateTimeOffset(2026, 4, 18, 12, 0, 0, TimeSpan.Zero); + var time = new FakeTimeProvider(now); + var store = new InMemoryTimeoutStore(new InMemoryPersistenceOptions(), timeProvider: time); + + var id = Guid.NewGuid(); + await store.InsertTimeoutAsync(new TimeoutData { Id = id, Time = now.AddMinutes(-1) }); + + var first = await store.GetTimeoutsBatchAsync(); + var initiallyClaimed = Assert.Single(first.DueTimeouts); + var initialLockOwner = initiallyClaimed.LockedBy; + + await store.ReleaseDispatchedTimeoutAsync(id); + + var second = await store.GetTimeoutsBatchAsync(); + var reclaimed = Assert.Single(second.DueTimeouts); + Assert.Equal(id, reclaimed.Id); + Assert.True(reclaimed.Locked); + Assert.NotEqual(Guid.Empty, reclaimed.LockedBy); + Assert.NotNull(reclaimed.LockExpiresAt); + Assert.NotEqual(initialLockOwner, reclaimed.LockedBy); + } + + [Fact] + public async Task RemoveDispatchedTimeout_RemovesFromIndex_SoSubsequentPollSkipsIt() + { + var now = new DateTimeOffset(2026, 4, 18, 12, 0, 0, TimeSpan.Zero); + var time = new FakeTimeProvider(now); + var store = new InMemoryTimeoutStore(new InMemoryPersistenceOptions(), timeProvider: time); + + var id = Guid.NewGuid(); + await store.InsertTimeoutAsync(new TimeoutData { Id = id, Time = now.AddMinutes(-1) }); + + var first = await store.GetTimeoutsBatchAsync(); + Assert.Single(first.DueTimeouts); + + await store.RemoveDispatchedTimeoutAsync(id); + + var second = await store.GetTimeoutsBatchAsync(); + Assert.Empty(second.DueTimeouts); + } + + [Fact] + public async Task ReleaseDispatchedTimeout_ClearsLockFields_BeforeNextClaim() + { + var now = new DateTimeOffset(2026, 4, 18, 12, 0, 0, TimeSpan.Zero); + var time = new FakeTimeProvider(now); + var store = new InMemoryTimeoutStore(new InMemoryPersistenceOptions(), timeProvider: time); + + var id = Guid.NewGuid(); + await store.InsertTimeoutAsync(new TimeoutData + { + Id = id, + Time = now.AddMinutes(-1), + Locked = true, + LockedBy = Guid.NewGuid(), + LockExpiresAt = now.AddMinutes(5), + }); + + await store.ReleaseDispatchedTimeoutAsync(id); + + var batch = await store.GetTimeoutsBatchAsync(); + var fetched = Assert.Single(batch.DueTimeouts); + Assert.Equal(id, fetched.Id); + Assert.True(fetched.Locked); + Assert.NotEqual(Guid.Empty, fetched.LockedBy); + Assert.NotNull(fetched.LockExpiresAt); + } + + [Fact] + public async Task ReleaseDispatchedTimeout_UnknownId_DoesNotThrow() + { + var store = new InMemoryTimeoutStore(new InMemoryPersistenceOptions()); + + var exception = await Record.ExceptionAsync(() => + store.ReleaseDispatchedTimeoutAsync(Guid.NewGuid())); + + Assert.Null(exception); + } + + [Fact] + public async Task ReleaseDispatchedTimeout_PreCancelledToken_Throws() + { + var store = new InMemoryTimeoutStore(new InMemoryPersistenceOptions()); + using var cts = new CancellationTokenSource(); + cts.Cancel(); + + await Assert.ThrowsAsync(() => + store.ReleaseDispatchedTimeoutAsync(Guid.NewGuid(), cancellationToken: cts.Token)); + } + + [Fact] + public async Task GetTimeoutsBatchAsync_WithBatchSize_HonoursCap() + { + var now = new DateTimeOffset(2026, 4, 26, 12, 0, 0, TimeSpan.Zero); + var time = new FakeTimeProvider(now); + var store = new InMemoryTimeoutStore(new InMemoryPersistenceOptions(), timeProvider: time); + for (int i = 0; i < 50; i++) + { + await store.InsertTimeoutAsync(new TimeoutData + { + Id = Guid.NewGuid(), + Destination = "dest", + ProcessManagerId = Guid.NewGuid(), + Time = time.GetUtcNow().AddMinutes(-1), + Headers = new Dictionary(), + }, CancellationToken.None); + } + + var batch = await store.GetTimeoutsBatchAsync(batchSize: 10); + + Assert.Equal(10, batch.DueTimeouts.Count); + } + + [Fact] + public async Task GetTimeoutsBatchAsync_NullBatchSize_ReturnsAllDueTimeouts() + { + var now = new DateTimeOffset(2026, 4, 26, 12, 0, 0, TimeSpan.Zero); + var time = new FakeTimeProvider(now); + var store = new InMemoryTimeoutStore(new InMemoryPersistenceOptions(), timeProvider: time); + for (int i = 0; i < 5; i++) + { + await store.InsertTimeoutAsync(new TimeoutData + { + Id = Guid.NewGuid(), + Time = time.GetUtcNow().AddMinutes(-1), + Headers = new Dictionary(), + }); + } + + var batch = await store.GetTimeoutsBatchAsync(); + + Assert.Equal(5, batch.DueTimeouts.Count); + } + + [Fact] + public async Task GetTimeoutsBatchAsync_BatchSizeLargerThanDueCount_ReturnsAllDueTimeouts() + { + var now = new DateTimeOffset(2026, 4, 26, 12, 0, 0, TimeSpan.Zero); + var time = new FakeTimeProvider(now); + var store = new InMemoryTimeoutStore(new InMemoryPersistenceOptions(), timeProvider: time); + for (int i = 0; i < 5; i++) + { + await store.InsertTimeoutAsync(new TimeoutData + { + Id = Guid.NewGuid(), + Time = time.GetUtcNow().AddMinutes(-1), + Headers = new Dictionary(), + }); + } + + var batch = await store.GetTimeoutsBatchAsync(batchSize: 100); + + Assert.Equal(5, batch.DueTimeouts.Count); + } + + [Theory] + [InlineData(0)] + [InlineData(-1)] + public async Task GetTimeoutsBatchAsync_BatchSizeZeroOrNegative_Throws(int invalidBatchSize) + { + var store = new InMemoryTimeoutStore(new InMemoryPersistenceOptions()); + + var ex = await Assert.ThrowsAsync(() => + store.GetTimeoutsBatchAsync(batchSize: invalidBatchSize)); + + Assert.Equal("batchSize", ex.ParamName); + } + + [Fact] + public async Task InsertTimeoutAsync_HeaderValueIsList_CallerMutationDoesNotLeakIntoStore() + { + var now = new DateTimeOffset(2026, 4, 26, 12, 0, 0, TimeSpan.Zero); + var time = new FakeTimeProvider(now); + var store = new InMemoryTimeoutStore(new InMemoryPersistenceOptions(), timeProvider: time); + var sharedList = new List { 1, 2, 3 }; + var id = Guid.NewGuid(); + await store.InsertTimeoutAsync(new TimeoutData + { + Id = id, + Destination = "d", + ProcessManagerId = Guid.NewGuid(), + Time = time.GetUtcNow().AddSeconds(-1), + Headers = new Dictionary { ["custom"] = sharedList }, + }, CancellationToken.None); + + sharedList.Add(99); // mutate after insert + + var batch = await store.GetTimeoutsBatchAsync(); + var stored = (List)batch.DueTimeouts.Single(t => t.Id == id).Headers["custom"]; + Assert.Equal(new byte[] { 1, 2, 3 }, stored); + } + + [Fact] + public async Task GetTimeoutsBatchAsync_CallerMutatesReturnedHeaders_DoesNotCorruptStore() + { + var now = new DateTimeOffset(2026, 4, 26, 12, 0, 0, TimeSpan.Zero); + var time = new FakeTimeProvider(now); + var store = new InMemoryTimeoutStore(new InMemoryPersistenceOptions(), timeProvider: time); + + var id = Guid.NewGuid(); + await store.InsertTimeoutAsync(new TimeoutData + { + Id = id, + Destination = "d", + ProcessManagerId = Guid.NewGuid(), + Time = time.GetUtcNow().AddSeconds(-1), + Headers = new Dictionary { ["custom"] = new List { 1, 2, 3 } }, + }, CancellationToken.None); + + // First fetch — caller mutates the returned list. + var firstBatch = await store.GetTimeoutsBatchAsync(); + var returned = (List)firstBatch.DueTimeouts.Single(t => t.Id == id).Headers["custom"]; + returned.Add(99); + + // Advance past the 5-minute lease so the same row becomes claimable again. + time.Advance(TimeSpan.FromMinutes(6)); + + var secondBatch = await store.GetTimeoutsBatchAsync(); + var stored = (List)secondBatch.DueTimeouts.Single(t => t.Id == id).Headers["custom"]; + Assert.Equal(new byte[] { 1, 2, 3 }, stored); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/InMemoryAggregatorPersistorLockHoldTests.cs b/src/ServiceConnect.UnitTests/Persistence/InMemoryAggregatorPersistorLockHoldTests.cs new file mode 100644 index 000000000..89f0c5de2 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/InMemoryAggregatorPersistorLockHoldTests.cs @@ -0,0 +1,66 @@ +using System; +using System.Threading.Tasks; +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.InMemory; +using ServiceConnect.UnitTests.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence; + +/// +/// Verifies the snapshot contract after the lock-hold reduction in +/// : entry references are +/// captured under the lock; DeepClone.Clone runs outside it. +/// +public class InMemoryAggregatorPersistorLockHoldTests +{ + [Fact] + public async Task GetSnapshotAsync_ReturnsClonesIndependentOfStorage() + { + // The snapshot must hand the caller deep-cloned objects. A remove issued + // after the snapshot is taken must not alter what that snapshot captured, + // and must be reflected in a subsequent snapshot. + using var persistor = new InMemoryAggregatorPersistor(); + var corrId = Guid.NewGuid(); + await persistor.InsertDataAsync(new AggregatorTestData(corrId) { Value = "original" }, "s", Guid.NewGuid().ToString()); + + // Take snapshot before any remove. + var snapshot = await persistor.GetSnapshotAsync("s"); + + // Remove the entry from storage. + await persistor.RemoveDataAsync("s", corrId); + + // Snapshot captured before the remove must still contain the entry. + Assert.Single(snapshot.ResolvedMessages); + Assert.Single(snapshot.ResolvedIds); + + // A subsequent snapshot taken after the remove must be empty. + var snapshotAfter = await persistor.GetSnapshotAsync("s"); + Assert.Empty(snapshotAfter.ResolvedMessages); + } + + [Fact] + public async Task GetSnapshotAsync_SnapshotDataIsDeepCloned_MutationDoesNotCorruptStorage() + { + // Even though DeepClone now runs outside the lock, the caller must still + // receive independent copies — mutating the returned snapshot objects must + // not alter what subsequent reads see in storage. + using var persistor = new InMemoryAggregatorPersistor(); + var corrId = Guid.NewGuid(); + await persistor.InsertDataAsync( + new InMemoryAggregatorPersistorTests.AggWithNested(corrId) { Tags = { "before" } }, "s", Guid.NewGuid().ToString()); + + var snapshot = await persistor.GetSnapshotAsync("s"); + var snapshotItem = Assert.IsType( + Assert.Single(snapshot.ResolvedMessages)); + + // Mutate the snapshot object. + snapshotItem.Tags.Add("after-snapshot-mutation"); + + // Storage must be unaffected — the next snapshot should still see only "before". + var snapshot2 = await persistor.GetSnapshotAsync("s"); + var item2 = Assert.IsType( + Assert.Single(snapshot2.ResolvedMessages)); + Assert.Equal(new[] { "before" }, item2.Tags); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/InMemoryPersistenceRegistrationLogTests.cs b/src/ServiceConnect.UnitTests/Persistence/InMemoryPersistenceRegistrationLogTests.cs new file mode 100644 index 000000000..97aab4180 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/InMemoryPersistenceRegistrationLogTests.cs @@ -0,0 +1,38 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging; +using Microsoft.Extensions.Logging.Testing; +using ServiceConnect; +using ServiceConnect.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence; + +public class InMemoryPersistenceRegistrationLogTests +{ + [Fact] + public void UseInMemoryPersistence_OnFirstStateResolution_LogsWarningExactlyOnce() + { + var builder = new ServiceConnectBuilder(); + builder.UseInMemoryPersistence(); + + var fakeLogger = new FakeLogger(); + var services = new ServiceCollection(); + services.AddSingleton(TimeProvider.System); + services.AddSingleton>(fakeLogger); + builder.AdditionalRegistrations[0](services); + + using var sp = services.BuildServiceProvider(); + var first = sp.GetRequiredService(); + var second = sp.GetRequiredService(); + + Assert.Same(first, second); + + var records = fakeLogger.Collector.GetSnapshot(); + Assert.Single(records); + Assert.Equal(LogLevel.Warning, records[0].Level); + Assert.Equal(InMemoryPersistenceLog.InMemoryPersistenceRegisteredEventId, records[0].Id.Id); + Assert.Contains("In-memory persistence is registered", records[0].Message); + Assert.Contains("development and tests", records[0].Message); + Assert.Contains("MongoDB", records[0].Message); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/InMemoryPersistenceStatePartitionTests.cs b/src/ServiceConnect.UnitTests/Persistence/InMemoryPersistenceStatePartitionTests.cs new file mode 100644 index 000000000..52527bb11 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/InMemoryPersistenceStatePartitionTests.cs @@ -0,0 +1,45 @@ +using Microsoft.Extensions.Time.Testing; +using ServiceConnect.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence; + +public class InMemoryPersistenceStatePartitionTests +{ + [Fact] + public void SagaProvider_IsDistinctInstance_FromPublicProvider() + { + using var state = new InMemoryPersistenceState(new FakeTimeProvider()); + Assert.NotSame(state.Provider, state.SagaProvider); + } + + [Fact] + public void UserKeysAddedToProvider_NotVisibleInSagaProvider() + { + using var state = new InMemoryPersistenceState(new FakeTimeProvider()); + state.Provider.Add("user/foo", new object(), CacheItemPriority.Normal); + + Assert.False(state.SagaProvider.TryGet("user/foo", out _)); + } + + [Fact] + public void SagaKeysAddedToSagaProvider_NotVisibleInPublicProvider() + { + using var state = new InMemoryPersistenceState(new FakeTimeProvider()); + state.SagaProvider.Add("saga/foo", new object(), CacheItemPriority.Normal); + + Assert.False(state.Provider.TryGet("saga/foo", out _)); + } + + [Fact] + public void Dispose_DisposesBothProviders() + { + var state = new InMemoryPersistenceState(new FakeTimeProvider()); + state.Dispose(); + + Assert.Throws(() => + state.Provider.Add("k", new object(), CacheItemPriority.Normal)); + Assert.Throws(() => + state.SagaProvider.Add("k", new object(), CacheItemPriority.Normal)); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/InMemoryProcessManagerFinderFreshDataTests.cs b/src/ServiceConnect.UnitTests/Persistence/InMemoryProcessManagerFinderFreshDataTests.cs new file mode 100644 index 000000000..dbfcaf329 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/InMemoryProcessManagerFinderFreshDataTests.cs @@ -0,0 +1,52 @@ +using System; +using System.Threading; +using System.Threading.Tasks; +using Microsoft.Extensions.Time.Testing; +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.InMemory; +using ServiceConnect.UnitTests.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence; + +// Regression pin for the fresh-copy contract on IProcessManagerFinder.FindDataAsync. +// +// ProcessManagerProcessor.UpdateData re-reads the persisted row on retry. +// If the persistor returned a cached reference, a handler that mutated +// IPersistenceData.Data then threw would leak the partial mutation into +// the retry. InMemoryProcessManagerFinder must deep-clone per Find call. +file sealed class FreshCopyTestData : IProcessManagerData +{ + public Guid CorrelationId { get; set; } + public string Name { get; set; } = ""; +} + +public class InMemoryProcessManagerFinderFreshDataTests +{ + [Fact] + public async Task FindDataAsync_ReturnsFreshDataReferencePerCall() + { + // Arrange + var correlationId = Guid.NewGuid(); + var finder = new InMemoryProcessManagerFinder( + new ProcessManagerPredicateCache(), + new InMemoryPersistenceState(new FakeTimeProvider())); + + await finder.InsertDataAsync( + new FreshCopyTestData { CorrelationId = correlationId, Name = "Original" }, + CancellationToken.None); + + var mapper = new TestProcessManagerPropertyMapper(); + mapper.ConfigureMapping(m => m.CorrelationId, pm => pm.CorrelationId); + + // Act + var first = await finder.FindDataAsync(mapper, new Message(correlationId), CancellationToken.None); + var second = await finder.FindDataAsync(mapper, new Message(correlationId), CancellationToken.None); + + // Assert + Assert.NotNull(first); + Assert.NotNull(second); + Assert.False(ReferenceEquals(first!.Data, second!.Data), + "FindDataAsync must return a fresh Data instance per call so handler mutation can't leak across retries."); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/InMemoryProcessManagerFinderIdTests.cs b/src/ServiceConnect.UnitTests/Persistence/InMemoryProcessManagerFinderIdTests.cs new file mode 100644 index 000000000..2418ccae8 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/InMemoryProcessManagerFinderIdTests.cs @@ -0,0 +1,120 @@ +using System; +using System.Threading; +using System.Threading.Tasks; +using Microsoft.Extensions.Time.Testing; +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.InMemory; +using ServiceConnect.UnitTests.Fakes.Messages; +using ServiceConnect.UnitTests.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence; + +// Minimal saga data type scoped to this file; reuses the CorrelationId mapping +// via Message so we can exercise the full Insert → Find → Update roundtrip. +file sealed class IdTestData : IProcessManagerData +{ + public Guid CorrelationId { get; set; } + public string Value { get; set; } = ""; +} + +public class InMemoryProcessManagerFinderIdTests +{ + private static (InMemoryProcessManagerFinder finder, IProcessManagerPropertyMapper mapper) Build() + { + var cache = new ProcessManagerPredicateCache(); + var state = new InMemoryPersistenceState(new FakeTimeProvider()); + var finder = new InMemoryProcessManagerFinder(cache, state); + var mapper = new TestProcessManagerPropertyMapper(); + mapper.ConfigureMapping(m => m.CorrelationId, pm => pm.CorrelationId); + return (finder, mapper); + } + + [Fact] + public async Task InsertData_StampsStableId() + { + // Arrange + var correlationId = Guid.NewGuid(); + var (finder, mapper) = Build(); + await finder.InsertDataAsync(new IdTestData { CorrelationId = correlationId, Value = "initial" }, CancellationToken.None); + + // Act — first retrieval + var first = await finder.FindDataAsync(mapper, new Message(correlationId), CancellationToken.None); + Assert.NotNull(first); + + // IIdentified surfaces the Id without requiring a cast to the concrete wrapper type. + var id = ((IIdentified)first).Id; + + // Assert — insert must stamp a non-empty Id + Assert.NotEqual(Guid.Empty, id); + + // Act — second retrieval (same stored row, no mutation) + var second = await finder.FindDataAsync(mapper, new Message(correlationId), CancellationToken.None); + Assert.NotNull(second); + var id2 = ((IIdentified)second).Id; + + // Assert — Id must be stable across independent reads + Assert.Equal(id, id2); + } + + [Fact] + public async Task Id_RoundTripsAcrossUpdate() + { + // Arrange + var correlationId = Guid.NewGuid(); + var (finder, mapper) = Build(); + await finder.InsertDataAsync(new IdTestData { CorrelationId = correlationId, Value = "initial" }, CancellationToken.None); + + var inserted = await finder.FindDataAsync(mapper, new Message(correlationId), CancellationToken.None); + Assert.NotNull(inserted); + var originalId = ((IIdentified)inserted).Id; + Assert.NotEqual(Guid.Empty, originalId); + + // Act — update the saga + inserted.Data.Value = "updated"; + await finder.UpdateDataAsync(inserted, CancellationToken.None); + + // Re-retrieve after update + var afterUpdate = await finder.FindDataAsync(mapper, new Message(correlationId), CancellationToken.None); + Assert.NotNull(afterUpdate); + var updatedId = ((IIdentified)afterUpdate).Id; + + // Id must survive the update — _id is stamped once on insert and is never + // re-issued by subsequent updates. + Assert.Equal(originalId, updatedId); + Assert.Equal("updated", afterUpdate.Data.Value); + } + + [Fact] + public async Task Id_StableAcrossMultipleUpdates() + { + // Mirrors the Mongo persistor's contract that _id is stamped once and never + // overwritten: a second UpdateDataAsync must leave Id unchanged, not re-stamp it. + var correlationId = Guid.NewGuid(); + var (finder, mapper) = Build(); + await finder.InsertDataAsync(new IdTestData { CorrelationId = correlationId, Value = "v0" }, CancellationToken.None); + + // Capture the Id assigned at insert. + var afterInsert = await finder.FindDataAsync(mapper, new Message(correlationId), CancellationToken.None); + Assert.NotNull(afterInsert); + var originalId = ((IIdentified)afterInsert).Id; + Assert.NotEqual(Guid.Empty, originalId); + + // First update (Version goes 1 → 2 inside UpdateDataAsync). + afterInsert.Data.Value = "v1"; + await finder.UpdateDataAsync(afterInsert, CancellationToken.None); + + var afterFirst = await finder.FindDataAsync(mapper, new Message(correlationId), CancellationToken.None); + Assert.NotNull(afterFirst); + Assert.Equal(originalId, ((IIdentified)afterFirst).Id); + + // Second update (Version goes 2 → 3 inside UpdateDataAsync). + afterFirst.Data.Value = "v2"; + await finder.UpdateDataAsync(afterFirst, CancellationToken.None); + + var afterSecond = await finder.FindDataAsync(mapper, new Message(correlationId), CancellationToken.None); + Assert.NotNull(afterSecond); + Assert.Equal(originalId, ((IIdentified)afterSecond).Id); + Assert.Equal("v2", afterSecond.Data.Value); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/InMemoryProcessManagerFinderInterfacePropertyTests.cs b/src/ServiceConnect.UnitTests/Persistence/InMemoryProcessManagerFinderInterfacePropertyTests.cs new file mode 100644 index 000000000..5b2f690df --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/InMemoryProcessManagerFinderInterfacePropertyTests.cs @@ -0,0 +1,75 @@ +using System; +using System.Threading; +using System.Threading.Tasks; +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.InMemory; +using ServiceConnect.UnitTests.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence; + +public class InMemoryProcessManagerFinderInterfacePropertyTests +{ + // The interface whose property is implemented explicitly on ExplicitSagaData. + public interface IFooSource + { + Guid FooId { get; } + } + + // Saga data with an explicit-interface property for FooId. + // FooIdValue is a public serialisation-visible backing property so the deep-clone + // round-trip preserves the value; FooId is only reachable via IFooSource, making + // the string-name lookup on the runtime type inadequate without the interface walk. + public sealed class ExplicitSagaData : IProcessManagerData, IFooSource + { + public Guid CorrelationId { get; set; } + + // Public so Newtonsoft.Json can round-trip the value through DeepClone.Clone. + public Guid FooIdValue { get; set; } + + // Explicit-interface impl: not reachable via ExplicitSagaData.GetProperty("FooId"). + // The expression tree builder must find IFooSource.FooId via the interface walk. + Guid IFooSource.FooId => FooIdValue; + } + + // Minimal message whose FooId is the correlation key. + public sealed class FooMessage(Guid fooId) : Message(fooId) + { + public Guid FooId => CorrelationId; + } + + [Fact] + public async Task FindData_ExplicitInterfaceImpl_BuildsCorrectPredicate() + { + // GetPredicate must build the member access via MakeMemberAccess with the + // IFooSource.FooId PropertyInfo, so the lookup resolves through the declaring + // interface type. Resolving by string name on the saga's runtime type + // (Expression.Property(left, left.Type, "FooId")) would miss explicit-interface + // implementations and throw ArgumentException. + + var fooId = Guid.NewGuid(); + var data = new ExplicitSagaData + { + CorrelationId = Guid.NewGuid(), + FooIdValue = fooId + }; + + var mapper = new TestProcessManagerPropertyMapper(); + // The cast to IFooSource in the lambda causes ConfigureMapping to extract the + // IFooSource.FooId PropertyInfo (Name = "FooId"). GetPredicate must then + // find that PropertyInfo on ExplicitSagaData via its implemented interfaces, + // not just by looking up a public property by string name on the runtime type. + mapper.ConfigureMapping( + d => ((IFooSource)d).FooId, + m => m.FooId); + + IProcessManagerFinder finder = new InMemoryProcessManagerFinder(new ProcessManagerPredicateCache(), new InMemoryPersistenceState(TimeProvider.System)); + await finder.InsertDataAsync(data, CancellationToken.None); + + var result = await finder.FindDataAsync( + mapper, new FooMessage(fooId), CancellationToken.None); + + Assert.NotNull(result); + Assert.Equal(data.CorrelationId, result.Data.CorrelationId); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/InMemoryProcessManagerFinderPolymorphicTests.cs b/src/ServiceConnect.UnitTests/Persistence/InMemoryProcessManagerFinderPolymorphicTests.cs new file mode 100644 index 000000000..5c639edc4 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/InMemoryProcessManagerFinderPolymorphicTests.cs @@ -0,0 +1,89 @@ +using System; +using System.Collections.Generic; +using System.Threading; +using System.Threading.Tasks; +using Microsoft.Extensions.Time.Testing; +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.InMemory; +using ServiceConnect.UnitTests.Fakes.Messages; +using ServiceConnect.UnitTests.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence; + +// Two unrelated saga types that share the same CorrelationId property so the +// mapper can match on either, but are not in a subtype relationship with each other. +file sealed class SagaTypeA : IProcessManagerData +{ + public Guid CorrelationId { get; set; } + public string ValueA { get; set; } = ""; +} + +file sealed class SagaTypeB : IProcessManagerData +{ + public Guid CorrelationId { get; set; } + public string ValueB { get; set; } = ""; +} + +public class InMemoryProcessManagerFinderPolymorphicTests +{ + private static IProcessManagerPropertyMapper BuildMapper() + { + var mapper = new TestProcessManagerPropertyMapper(); + // Map CorrelationId on both saga types so the predicate builder can compile + // a typed accessor for whichever T FindDataAsync is called with. + mapper.ConfigureMapping(m => m.CorrelationId, pm => pm.CorrelationId); + mapper.ConfigureMapping(m => m.CorrelationId, pm => pm.CorrelationId); + return mapper; + } + + [Fact] + public async Task FindData_StoredTypeMismatchesT_SkipsAndReturnsNull() + { + // Multi-saga support: a worker can host >1 saga type. InsertDataAsync wraps the + // SagaTypeA record as MemoryData; the InMemory flat-dictionary scan + // for SagaTypeB MUST skip the SagaTypeA entry (no match) rather than throw + // InvalidOperationException. Throwing InvalidOperationException would not be a + // ConcurrencyException, so the dispatcher has no retry path and the worker would + // surface permanently-failed dispatches whenever it hosts multiple saga types. + var correlationId = Guid.NewGuid(); + var cache = new ProcessManagerPredicateCache(); + var state = new InMemoryPersistenceState(new FakeTimeProvider()); + var finder = new InMemoryProcessManagerFinder(cache, state); + var mapper = BuildMapper(); + + // Store as SagaTypeA. + await finder.InsertDataAsync( + new SagaTypeA { CorrelationId = correlationId, ValueA = "hello" }, + CancellationToken.None); + + // Retrieving as SagaTypeB must skip the unrelated SagaTypeA row and return null — + // identical to the contract Mongo provides via per-saga-type collections. + var result = await finder.FindDataAsync(mapper, new Message(correlationId), CancellationToken.None); + + Assert.Null(result); + } + + [Fact] + public async Task FindData_StoredTypeMatchesT_ReturnsMatch() + { + // Regression guard: inserting and retrieving with the exact same T must continue + // to work without touching the fallback path at all. + var correlationId = Guid.NewGuid(); + var cache = new ProcessManagerPredicateCache(); + var state = new InMemoryPersistenceState(new FakeTimeProvider()); + var finder = new InMemoryProcessManagerFinder(cache, state); + var mapper = BuildMapper(); + + await finder.InsertDataAsync( + new SagaTypeA { CorrelationId = correlationId, ValueA = "world" }, + CancellationToken.None); + + var result = await finder.FindDataAsync(mapper, new Message(correlationId), CancellationToken.None); + + Assert.NotNull(result); + Assert.Equal("world", result.Data.ValueA); + // Version is surfaced via IVersioned; IPersistenceData does not expose it directly. + Assert.Equal(1L, ((IVersioned)result).Version); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/InMemoryTimeoutStoreGuidEmptyTests.cs b/src/ServiceConnect.UnitTests/Persistence/InMemoryTimeoutStoreGuidEmptyTests.cs new file mode 100644 index 000000000..8f580ffbf --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/InMemoryTimeoutStoreGuidEmptyTests.cs @@ -0,0 +1,45 @@ +using Microsoft.Extensions.Time.Testing; +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence; + +public class InMemoryTimeoutStoreGuidEmptyTests +{ + [Fact] + public async Task InsertTimeout_GuidEmpty_ThrowsArgumentException() + { + var clock = new FakeTimeProvider(); + var state = new InMemoryPersistenceState(clock); + var store = new InMemoryTimeoutStore(new InMemoryPersistenceOptions(), state, clock); + + await Assert.ThrowsAsync(() => + store.InsertTimeoutAsync(new TimeoutData + { + Id = Guid.Empty, + Destination = "dest", + ProcessManagerId = Guid.NewGuid(), + Time = clock.GetUtcNow(), + Headers = new Dictionary(StringComparer.Ordinal), + })); + } + + [Fact] + public async Task InsertTimeout_ValidGuid_Succeeds() + { + var clock = new FakeTimeProvider(); + var state = new InMemoryPersistenceState(clock); + var store = new InMemoryTimeoutStore(new InMemoryPersistenceOptions(), state, clock); + + await store.InsertTimeoutAsync(new TimeoutData + { + Id = Guid.NewGuid(), + Destination = "dest", + ProcessManagerId = Guid.NewGuid(), + Time = clock.GetUtcNow(), + Headers = new Dictionary(StringComparer.Ordinal), + }); + // No exception → success. + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/InMemoryTimeoutStoreLeaseTests.cs b/src/ServiceConnect.UnitTests/Persistence/InMemoryTimeoutStoreLeaseTests.cs new file mode 100644 index 000000000..879a352e4 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/InMemoryTimeoutStoreLeaseTests.cs @@ -0,0 +1,246 @@ +using Microsoft.Extensions.Time.Testing; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Exceptions; +using ServiceConnect.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence; + +public class InMemoryTimeoutStoreLeaseTests +{ + [Fact] + public async Task RemoveDispatchedTimeoutAsync_LeaseAware_ThrowsWhenLeaseIsStale() + { + // Mirror of the Mongo lease test: a caller with a stale lockOwner must see a + // ConcurrencyException instead of a silent no-op. Parity across the two stores + // keeps test doubles against the InMemory implementation honest. + var now = new DateTimeOffset(2026, 4, 18, 12, 0, 0, TimeSpan.Zero); + var time = new FakeTimeProvider(now); + var store = new InMemoryTimeoutStore(new InMemoryPersistenceOptions(), timeProvider: time); + + var id = Guid.NewGuid(); + await store.InsertTimeoutAsync(new TimeoutData { Id = id, Time = now.AddMinutes(-1) }); + + // Claim to establish a real LockedBy (the current owner, sessionA). + var batch = await store.GetTimeoutsBatchAsync(); + var claimed = Assert.Single(batch.DueTimeouts); + Assert.NotEqual(Guid.Empty, claimed.LockedBy); + + // A different caller tries to Remove with a Guid that no one owns. + var staleOwner = Guid.NewGuid(); + var ex = await Assert.ThrowsAsync(() => + store.RemoveDispatchedTimeoutAsync(id, lockOwner: staleOwner)); + + Assert.Contains(id.ToString(), ex.Message, StringComparison.OrdinalIgnoreCase); + Assert.Contains(staleOwner.ToString(), ex.Message, StringComparison.OrdinalIgnoreCase); + } + + [Fact] + public async Task ReleaseDispatchedTimeoutAsync_LeaseAware_ThrowsWhenLeaseIsStale() + { + var now = new DateTimeOffset(2026, 4, 18, 12, 0, 0, TimeSpan.Zero); + var time = new FakeTimeProvider(now); + var store = new InMemoryTimeoutStore(new InMemoryPersistenceOptions(), timeProvider: time); + + var id = Guid.NewGuid(); + await store.InsertTimeoutAsync(new TimeoutData { Id = id, Time = now.AddMinutes(-1) }); + + var batch = await store.GetTimeoutsBatchAsync(); + var claimed = Assert.Single(batch.DueTimeouts); + + var staleOwner = Guid.NewGuid(); + var ex = await Assert.ThrowsAsync(() => + store.ReleaseDispatchedTimeoutAsync(id, lockOwner: staleOwner)); + + Assert.Contains(id.ToString(), ex.Message, StringComparison.OrdinalIgnoreCase); + Assert.Contains(staleOwner.ToString(), ex.Message, StringComparison.OrdinalIgnoreCase); + + // The real owner's lease must remain intact — Release from a stale owner is a no-op + // from a state perspective. + var secondBatch = await store.GetTimeoutsBatchAsync(); + Assert.Empty(secondBatch.DueTimeouts); + } + + [Fact] + public async Task RemoveDispatchedTimeoutAsync_LeaseAware_SucceedsForCorrectOwner() + { + var now = new DateTimeOffset(2026, 4, 18, 12, 0, 0, TimeSpan.Zero); + var time = new FakeTimeProvider(now); + var store = new InMemoryTimeoutStore(new InMemoryPersistenceOptions(), timeProvider: time); + + var id = Guid.NewGuid(); + await store.InsertTimeoutAsync(new TimeoutData { Id = id, Time = now.AddMinutes(-1) }); + + var batch = await store.GetTimeoutsBatchAsync(); + var claimed = Assert.Single(batch.DueTimeouts); + + // Actual owner performs Remove — no throw and the timeout is gone from the store. + var ex = await Record.ExceptionAsync(() => + store.RemoveDispatchedTimeoutAsync(id, lockOwner: claimed.LockedBy)); + Assert.Null(ex); + + var nextBatch = await store.GetTimeoutsBatchAsync(); + Assert.Empty(nextBatch.DueTimeouts); + } + + [Fact] + public async Task RemoveDispatchedTimeoutAsync_LeaseAware_ThrowsWhenRowIsUnleased() + { + // Parity guard: passing Guid.Empty (or any owner) against an unleased row must throw, + // matching Mongo's filter which requires Locked == true. Without the !Locked check, + // InMemory would silently succeed because the default LockedBy on an unleased row + // is also Guid.Empty. + var now = new DateTimeOffset(2026, 4, 22, 12, 0, 0, TimeSpan.Zero); + var time = new FakeTimeProvider(now); + var store = new InMemoryTimeoutStore(new InMemoryPersistenceOptions(), timeProvider: time); + var id = Guid.NewGuid(); + await store.InsertTimeoutAsync(new TimeoutData { Id = id, Time = now.AddMinutes(-1) }); + // Do NOT claim — row is unleased (Locked=false, LockedBy=Guid.Empty). + + await Assert.ThrowsAsync( + () => store.RemoveDispatchedTimeoutAsync(id, lockOwner: Guid.Empty)); + } + + [Fact] + public async Task ReleaseDispatchedTimeoutAsync_LeaseAware_ThrowsWhenRowIsUnleased() + { + // Parity guard: same as above but for Release. An unleased row must not be writable + // by a caller passing Guid.Empty, because Mongo's filter would reject it. + var now = new DateTimeOffset(2026, 4, 22, 12, 0, 0, TimeSpan.Zero); + var time = new FakeTimeProvider(now); + var store = new InMemoryTimeoutStore(new InMemoryPersistenceOptions(), timeProvider: time); + var id = Guid.NewGuid(); + await store.InsertTimeoutAsync(new TimeoutData { Id = id, Time = now.AddMinutes(-1) }); + + await Assert.ThrowsAsync( + () => store.ReleaseDispatchedTimeoutAsync(id, lockOwner: Guid.Empty)); + } + + [Fact] + public async Task RemoveDispatchedTimeoutAsync_LeaseAware_PreCancelledToken_Throws() + { + var store = new InMemoryTimeoutStore(new InMemoryPersistenceOptions()); + using var cts = new CancellationTokenSource(); + cts.Cancel(); + + await Assert.ThrowsAsync(() => + store.RemoveDispatchedTimeoutAsync(Guid.NewGuid(), lockOwner: Guid.NewGuid(), cts.Token)); + } + + [Fact] + public async Task ReleaseDispatchedTimeoutAsync_LeaseAware_PreCancelledToken_Throws() + { + var store = new InMemoryTimeoutStore(new InMemoryPersistenceOptions()); + using var cts = new CancellationTokenSource(); + cts.Cancel(); + + await Assert.ThrowsAsync(() => + store.ReleaseDispatchedTimeoutAsync(Guid.NewGuid(), lockOwner: Guid.NewGuid(), cts.Token)); + } + + [Fact] + public async Task RemoveDispatchedTimeoutAsync_NonNullLockOwner_MissingRow_ThrowsConcurrencyException() + { + // A non-null lockOwner against a missing row must throw, not silently no-op. + // A missing row's "current lock owner" is nobody, so the caller's lease is + // already invalidated — surface as ConcurrencyException to match Mongo. + var store = new InMemoryTimeoutStore(new InMemoryPersistenceOptions()); + var randomId = Guid.NewGuid(); + var ownerThatNeverHadIt = Guid.NewGuid(); + + await Assert.ThrowsAsync(() => + store.RemoveDispatchedTimeoutAsync(randomId, lockOwner: ownerThatNeverHadIt)); + } + + [Fact] + public async Task ReleaseDispatchedTimeoutAsync_NonNullLockOwner_MissingRow_ThrowsConcurrencyException() + { + // A non-null lockOwner against a missing row must throw, not silently no-op. + // Mirrors RemoveDispatchedTimeoutAsync contract and Mongo behaviour. + var store = new InMemoryTimeoutStore(new InMemoryPersistenceOptions()); + var randomId = Guid.NewGuid(); + var ownerThatNeverHadIt = Guid.NewGuid(); + + await Assert.ThrowsAsync(() => + store.ReleaseDispatchedTimeoutAsync(randomId, lockOwner: ownerThatNeverHadIt)); + } + + [Fact] + public async Task RemoveDispatchedTimeout_ExpiredLease_ThrowsConcurrencyException() + { + // The caller held a valid lease at claim time, but the 5-minute window has + // elapsed before dispatching. An expired lease is as invalid as a mismatched + // owner — the InMemory store must mirror the Mongo contract. + var clock = new FakeTimeProvider(new DateTimeOffset(2026, 5, 1, 0, 0, 0, TimeSpan.Zero)); + var store = new InMemoryTimeoutStore(new InMemoryPersistenceOptions(), timeProvider: clock); + + var id = Guid.NewGuid(); + await store.InsertTimeoutAsync(new TimeoutData + { + Id = id, + Destination = "dest", + ProcessManagerId = Guid.NewGuid(), + Time = clock.GetUtcNow(), + Headers = new Dictionary(StringComparer.Ordinal), + }); + + var batch = await store.GetTimeoutsBatchAsync(); + Assert.Single(batch.DueTimeouts); + var owner = batch.DueTimeouts[0].LockedBy; + + // Advance past the 5-minute default lease. + clock.Advance(TimeSpan.FromMinutes(6)); + + await Assert.ThrowsAsync(() => + store.RemoveDispatchedTimeoutAsync(id, owner)); + } + + [Fact] + public async Task ReleaseDispatchedTimeout_ExpiredLease_ThrowsConcurrencyException() + { + // Mirror of the Remove test: ReleaseDispatchedTimeoutAsync must also reject + // expired leases rather than silently clearing the lock on a stale claim. + var clock = new FakeTimeProvider(new DateTimeOffset(2026, 5, 1, 0, 0, 0, TimeSpan.Zero)); + var store = new InMemoryTimeoutStore(new InMemoryPersistenceOptions(), timeProvider: clock); + + var id = Guid.NewGuid(); + await store.InsertTimeoutAsync(new TimeoutData + { + Id = id, + Destination = "dest", + ProcessManagerId = Guid.NewGuid(), + Time = clock.GetUtcNow(), + Headers = new Dictionary(StringComparer.Ordinal), + }); + + var batch = await store.GetTimeoutsBatchAsync(); + var owner = batch.DueTimeouts[0].LockedBy; + + clock.Advance(TimeSpan.FromMinutes(6)); + + await Assert.ThrowsAsync(() => + store.ReleaseDispatchedTimeoutAsync(id, owner)); + } + + [Fact] + public async Task RemoveDispatchedTimeoutAsync_NullLockOwner_RemovesLeasedRow() + { + // lockOwner == null is the unconditional id-only path. A leased row must still + // be removed when the caller explicitly opts out of the lease check by passing null. + var now = new DateTimeOffset(2026, 4, 18, 12, 0, 0, TimeSpan.Zero); + var time = new FakeTimeProvider(now); + var store = new InMemoryTimeoutStore(new InMemoryPersistenceOptions(), timeProvider: time); + + var id = Guid.NewGuid(); + await store.InsertTimeoutAsync(new TimeoutData { Id = id, Time = now.AddMinutes(-1) }); + + // Claim so the row is leased. + var batch = await store.GetTimeoutsBatchAsync(); + Assert.Contains(batch.DueTimeouts, t => t.Id == id); + + await store.RemoveDispatchedTimeoutAsync(id, lockOwner: null); + + var afterBatch = await store.GetTimeoutsBatchAsync(); + Assert.DoesNotContain(afterBatch.DueTimeouts, t => t.Id == id); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/InMemoryTimeoutStoreOptionsTests.cs b/src/ServiceConnect.UnitTests/Persistence/InMemoryTimeoutStoreOptionsTests.cs new file mode 100644 index 000000000..145643f8e --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/InMemoryTimeoutStoreOptionsTests.cs @@ -0,0 +1,67 @@ +using Microsoft.Extensions.Time.Testing; +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence; + +public class InMemoryTimeoutStoreOptionsTests +{ + [Fact] + public void Constructor_NullOptions_ThrowsArgumentNullException() + { + Assert.Throws(() => + new InMemoryTimeoutStore(options: null!)); + } + + [Theory] + [InlineData(0)] // TimeSpan.Zero + [InlineData(-1000)] // negative + public void Constructor_NonPositiveLeaseDuration_ThrowsArgumentOutOfRange(long ticks) + { + var options = new InMemoryPersistenceOptions + { + LockLeaseDuration = TimeSpan.FromTicks(ticks), + }; + Assert.Throws(() => + new InMemoryTimeoutStore(options)); + } + + [Fact] + public async Task LockLeaseDuration_HonoursOptions() + { + var clock = new FakeTimeProvider(new DateTimeOffset(2026, 5, 1, 0, 0, 0, TimeSpan.Zero)); + var options = new InMemoryPersistenceOptions + { + LockLeaseDuration = TimeSpan.FromSeconds(30), + }; + var state = new InMemoryPersistenceState(clock); + var store = new InMemoryTimeoutStore(options, state, clock); + + var id = Guid.NewGuid(); + await store.InsertTimeoutAsync(new TimeoutData + { + Id = id, + Destination = "dest", + ProcessManagerId = Guid.NewGuid(), + Time = clock.GetUtcNow(), + Headers = new Dictionary(StringComparer.Ordinal), + }); + + // First poll: row leased. + var first = await store.GetTimeoutsBatchAsync(); + Assert.Single(first.DueTimeouts); + + // Advance just-under the configured 30s lease — second poll returns nothing + // because the row is still held. + clock.Advance(TimeSpan.FromSeconds(29)); + var second = await store.GetTimeoutsBatchAsync(); + Assert.Empty(second.DueTimeouts); + + // Advance past the lease — third poll returns the row again because the + // due-filter's expired-lease branch picks it up. + clock.Advance(TimeSpan.FromSeconds(2)); + var third = await store.GetTimeoutsBatchAsync(); + Assert.Single(third.DueTimeouts); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoClientFactoryCertCacheTests.cs b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoClientFactoryCertCacheTests.cs new file mode 100644 index 000000000..62f8bbeae --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoClientFactoryCertCacheTests.cs @@ -0,0 +1,119 @@ +using System; +using System.IO; +using System.Reflection; +using System.Security.Cryptography; +using System.Security.Cryptography.X509Certificates; +using System.Threading; +using System.Threading.Tasks; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.MongoDb; + +[Collection("Mongo Bson serial")] +public class MongoClientFactoryCertCacheTests +{ + [Fact] + public async Task GetOrLoadCertificate_ConcurrentFirstLoad_InvokesLoaderOnce() + { + // Arrange: build a single in-memory self-signed cert that the substitute loader + // returns. We don't dispose this — Lazy hands it out and the cache owns it. + using var rsa = RSA.Create(2048); + var req = new CertificateRequest("CN=cert-cache-test", rsa, HashAlgorithmName.SHA256, RSASignaturePadding.Pkcs1); + var sharedCert = req.CreateSelfSigned(DateTimeOffset.UtcNow.AddDays(-1), DateTimeOffset.UtcNow.AddDays(1)); + + MongoClientFactory.ClearCertificateCache(); + var originalLoader = MongoClientFactory.CertLoader; + + var loadCount = 0; + MongoClientFactory.CertLoader = (path, passphrase) => + { + Interlocked.Increment(ref loadCount); + // Simulate a non-trivial load so threads actually contend on the factory. + Thread.Sleep(50); + return sharedCert; + }; + + try + { + // Act: race 32 threads through GetOrLoadCertificate (private) via reflection, + // gated on a manual reset event so they all enter the GetOrAdd at roughly the + // same instant. + var method = typeof(MongoClientFactory).GetMethod( + "GetOrLoadCertificate", + BindingFlags.NonPublic | BindingFlags.Static); + Assert.NotNull(method); + + using var gate = new ManualResetEventSlim(false); + const int threadCount = 32; + var tasks = new Task[threadCount]; + + for (var i = 0; i < threadCount; i++) + { + tasks[i] = Task.Run(() => + { + gate.Wait(); + method!.Invoke(null, ["/fake/path.pfx", "pw"]); + }); + } + + gate.Set(); + await Task.WhenAll(tasks); + + // Assert: Lazy(ExecutionAndPublication) guarantees the loader fires exactly + // once even though many threads enter GetOrAdd concurrently. + Assert.Equal(1, loadCount); + } + finally + { + MongoClientFactory.CertLoader = originalLoader; + MongoClientFactory.ClearCertificateCache(); + } + } + + [Fact] + public void GetOrLoadCertificate_LoaderThrows_DoesNotPoisonCache() + { + MongoClientFactory.ClearCertificateCache(); + var originalLoader = MongoClientFactory.CertLoader; + + var attempts = 0; + using var rsa = RSA.Create(2048); + var req = new CertificateRequest("CN=cert-cache-retry", rsa, HashAlgorithmName.SHA256, RSASignaturePadding.Pkcs1); + var realCert = req.CreateSelfSigned(DateTimeOffset.UtcNow.AddDays(-1), DateTimeOffset.UtcNow.AddDays(1)); + + MongoClientFactory.CertLoader = (path, passphrase) => + { + var n = Interlocked.Increment(ref attempts); + if (n == 1) + { + throw new IOException("transient"); + } + + return realCert; + }; + + try + { + var method = typeof(MongoClientFactory).GetMethod( + "GetOrLoadCertificate", + BindingFlags.NonPublic | BindingFlags.Static); + Assert.NotNull(method); + + // First call: loader throws; the Lazy should be evicted so the next call retries. + var ex = Assert.Throws( + () => method!.Invoke(null, ["/fake/retry.pfx", "pw"])); + Assert.IsType(ex.InnerException); + + // Second call: should succeed (loader returns realCert), proving the cache wasn't poisoned. + var result = method!.Invoke(null, ["/fake/retry.pfx", "pw"]); + Assert.Same(realCert, result); + Assert.Equal(2, attempts); + } + finally + { + MongoClientFactory.CertLoader = originalLoader; + MongoClientFactory.ClearCertificateCache(); + } + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoClientFactoryCertCallbackTests.cs b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoClientFactoryCertCallbackTests.cs new file mode 100644 index 000000000..1483b8180 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoClientFactoryCertCallbackTests.cs @@ -0,0 +1,92 @@ +using System.IO; +using System.Net.Security; +using System.Security.Cryptography; +using System.Security.Cryptography.X509Certificates; +using MongoDB.Driver; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.MongoDb; + +[Collection("Mongo Bson serial")] +public class MongoClientFactoryCertCallbackTests +{ + private static LocalCertificateSelectionCallback BuildCallback() + { + var dummyCert = CreateDummyCertificate(); + var originalLoader = MongoClientFactory.CertLoader; + MongoClientFactory.CertLoader = (_, _) => dummyCert; + + try + { + var options = new MongoDbPersistenceOptions + { + ConnectionString = "mongodb://localhost:27017", + DatabaseName = "test", + Ssl = new MongoDbSslOptions + { + CertPath = CreateTempPemPath(), + CertPassphrase = null, + AllowInsecureTls = true, + }, + }; + + var client = MongoClientFactory.Create(options); + return client.Settings.SslSettings!.ClientCertificateSelectionCallback!; + } + finally + { + MongoClientFactory.CertLoader = originalLoader; + MongoClientFactory.ClearCertificateCache(); + } + } + + [Fact] + public void CertificateSelectionCallback_NullCertificates_FallsBackToCertificateParam() + { + var callback = BuildCallback(); + var fallbackCert = CreateDummyCertificate(); + + var result = callback.Invoke(this, "host", null!, fallbackCert, []); + + Assert.Same(fallbackCert, result); + } + + [Fact] + public void CertificateSelectionCallback_EmptyCertificates_FallsBackToCertificateParam() + { + var callback = BuildCallback(); + var fallbackCert = CreateDummyCertificate(); + var emptyCollection = new X509CertificateCollection(); + + var result = callback.Invoke(this, "host", emptyCollection, fallbackCert, []); + + Assert.Same(fallbackCert, result); + } + + [Fact] + public void CertificateSelectionCallback_NonEmptyCertificates_ReturnsFirst() + { + var callback = BuildCallback(); + var firstCert = CreateDummyCertificate(); + var collection = new X509CertificateCollection { firstCert }; + + var result = callback.Invoke(this, "host", collection, CreateDummyCertificate(), []); + + Assert.Same(firstCert, result); + } + + private static X509Certificate2 CreateDummyCertificate() + { + using var rsa = RSA.Create(2048); + var req = new CertificateRequest("CN=test", rsa, HashAlgorithmName.SHA256, RSASignaturePadding.Pkcs1); + return req.CreateSelfSigned(DateTimeOffset.Now, DateTimeOffset.Now.AddHours(1)); + } + + private static string CreateTempPemPath() + { + var path = Path.Combine(Path.GetTempPath(), $"sc-test-{Guid.NewGuid()}.pem"); + File.WriteAllText(path, "dummy"); + return path; + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoClientFactoryTests.cs b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoClientFactoryTests.cs new file mode 100644 index 000000000..5d46361e5 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoClientFactoryTests.cs @@ -0,0 +1,189 @@ +using System.Security.Authentication; +using System.Security.Cryptography; +using System.Security.Cryptography.X509Certificates; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.MongoDb; + +[Collection("Mongo Bson serial")] +public class MongoClientFactoryTests : IDisposable +{ + private const string Passphrase = "testpass"; + + private readonly string _certPath; // DER-encoded public cert (no private key) + private readonly string _pfxPath; // PKCS#12 with private key, password-protected + + public MongoClientFactoryTests() + { + using var rsa = RSA.Create(2048); + var req = new CertificateRequest( + "CN=serviceconnect-unittest", + rsa, + HashAlgorithmName.SHA256, + RSASignaturePadding.Pkcs1); + var cert = req.CreateSelfSigned( + DateTimeOffset.UtcNow.AddDays(-1), + DateTimeOffset.UtcNow.AddDays(30)); + + _certPath = Path.Combine(Path.GetTempPath(), $"sc-mongoclientfactory-{Guid.NewGuid():N}.cer"); + _pfxPath = Path.Combine(Path.GetTempPath(), $"sc-mongoclientfactory-{Guid.NewGuid():N}.pfx"); + + File.WriteAllBytes(_certPath, cert.Export(X509ContentType.Cert)); + File.WriteAllBytes(_pfxPath, cert.Export(X509ContentType.Pfx, Passphrase)); + } + + public void Dispose() + { + if (File.Exists(_certPath)) + { + File.Delete(_certPath); + } + + if (File.Exists(_pfxPath)) + { + File.Delete(_pfxPath); + } + } + + [Fact] + public void Create_ReturnsClient_WithoutSsl_WhenSslNull() + { + var options = new MongoDbPersistenceOptions + { + ConnectionString = "mongodb://localhost:27017", + Ssl = null + }; + + var client = MongoClientFactory.Create(options); + + Assert.False(client.Settings.UseTls); + } + + [Fact] + public void Create_EnablesUseTls_WhenSslConfigured() + { + var options = new MongoDbPersistenceOptions + { + ConnectionString = "mongodb://localhost:27017", + Ssl = new MongoDbSslOptions() + }; + + var client = MongoClientFactory.Create(options); + + Assert.True(client.Settings.UseTls); + } + + [Theory] + [InlineData(true)] + [InlineData(false)] + public void Create_PropagatesAllowInsecureTls_FromOptions(bool allowInsecure) + { + var options = new MongoDbPersistenceOptions + { + ConnectionString = "mongodb://localhost:27017", + Ssl = new MongoDbSslOptions { AllowInsecureTls = allowInsecure } + }; + + var client = MongoClientFactory.Create(options); + + Assert.Equal(allowInsecure, client.Settings.AllowInsecureTls); + } + + [Fact] + public void Create_WithoutCertPath_LeavesClientCertificatesUnset() + { + var options = new MongoDbPersistenceOptions + { + ConnectionString = "mongodb://localhost:27017", + Ssl = new MongoDbSslOptions() // CertPath is null + }; + + var client = MongoClientFactory.Create(options); + + // The factory does not inject a client certificate when CertPath is empty. + Assert.Null(client.Settings.SslSettings?.ClientCertificates); + } + + [Fact] + public void Create_WithoutCertPath_AppliesProtocolAndRevocationSettings() + { + var options = new MongoDbPersistenceOptions + { + ConnectionString = "mongodb://localhost:27017", + Ssl = new MongoDbSslOptions + { + SslProtocol = SslProtocols.Tls12, + CheckCertificateRevocation = false + } + }; + + var client = MongoClientFactory.Create(options); + + Assert.NotNull(client.Settings.SslSettings); + Assert.Equal(SslProtocols.Tls12, client.Settings.SslSettings!.EnabledSslProtocols); + Assert.False(client.Settings.SslSettings.CheckCertificateRevocation); + } + + [Fact] + public void Create_AllowInsecureTls_ForcesRevocationCheckOff() + { + var options = new MongoDbPersistenceOptions + { + ConnectionString = "mongodb://localhost:27017", + Ssl = new MongoDbSslOptions + { + AllowInsecureTls = true, + CheckCertificateRevocation = true + } + }; + + var client = MongoClientFactory.Create(options); + + Assert.True(client.Settings.AllowInsecureTls); + Assert.False(client.Settings.SslSettings!.CheckCertificateRevocation); + } + + [Fact] + public void Create_WithCertPath_NoPassphrase_LoadsPublicCert_AndSetsCheckCertificateRevocation() + { + var options = new MongoDbPersistenceOptions + { + ConnectionString = "mongodb://localhost:27017", + Ssl = new MongoDbSslOptions + { + CertPath = _certPath, + CheckCertificateRevocation = false + } + }; + + var client = MongoClientFactory.Create(options); + + Assert.NotNull(client.Settings.SslSettings); + var certs = client.Settings.SslSettings!.ClientCertificates!.Cast().ToList(); + Assert.Single(certs); + Assert.False(client.Settings.SslSettings.CheckCertificateRevocation); + } + + [Fact] + public void Create_WithCertPath_AndPassphrase_LoadsPasswordProtectedCert() + { + var options = new MongoDbPersistenceOptions + { + ConnectionString = "mongodb://localhost:27017", + Ssl = new MongoDbSslOptions + { + CertPath = _pfxPath, + CertPassphrase = Passphrase, + CheckCertificateRevocation = true + } + }; + + var client = MongoClientFactory.Create(options); + + Assert.NotNull(client.Settings.SslSettings); + var certs = client.Settings.SslSettings!.ClientCertificates!.Cast().ToList(); + Assert.Single(certs); + Assert.True(client.Settings.SslSettings.CheckCertificateRevocation); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbAggregatorPersistorBsonExceptionTests.cs b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbAggregatorPersistorBsonExceptionTests.cs new file mode 100644 index 000000000..9ab6ee28c --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbAggregatorPersistorBsonExceptionTests.cs @@ -0,0 +1,301 @@ +using Microsoft.Extensions.Logging; +using MongoDB.Bson; +using MongoDB.Driver; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Exceptions; +using ServiceConnect.Persistence.MongoDb; +using ServiceConnect.UnitTests.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.MongoDb; + +[Collection("Mongo Bson serial")] +public class MongoDbAggregatorPersistorBsonExceptionTests +{ + /// + /// Target type used to prove deserialization: a BsonDocument whose Body field is an + /// array (incompatible with string) triggers BsonSerializationException. + /// + public sealed class CorruptTarget : IHasCorrelationId + { + public Guid CorrelationId { get; init; } + public string Body { get; set; } = string.Empty; + } + + private delegate bool TryResolveCallback(string typeName, out Type? type); + + [Fact] + public async Task GetSnapshotAsync_DocFailsToDeserialise_DocCountedAsUnresolved_NotThrown() + { + var (persistor, mockCollection, registry) = CreateMockedPersistor(); + + var validDoc = new MongoDbAggregatorPersistor.AggregatorDocument + { + Id = Guid.NewGuid(), + Name = "agg-corrupt", + DataTypeName = typeof(CorruptTarget).FullName!, + // Body is a string — deserializes cleanly. + DataBson = new BsonDocument { { "Body", "ok" } }, + Version = 1, + InsertedAtTicks = 1L, + }; + + var corruptDoc = new MongoDbAggregatorPersistor.AggregatorDocument + { + Id = Guid.NewGuid(), + Name = "agg-corrupt", + DataTypeName = typeof(CorruptTarget).FullName!, + // Body declared as string; supplying an array causes BsonSerializationException. + DataBson = new BsonDocument { { "Body", new BsonArray { 1, 2, 3 } } }, + Version = 1, + InsertedAtTicks = 2L, + }; + + registry.Setup(r => r.TryResolve(typeof(CorruptTarget).FullName!, out It.Ref.IsAny!)) + .Returns(new TryResolveCallback((string _, out Type? t) => + { + t = typeof(CorruptTarget); + return true; + })); + + var docs = new List { validDoc, corruptDoc }; + + var fakeCursor = new FakeAsyncCursor(docs); + + var mockFindFluent = new Mock>(); + mockFindFluent + .Setup(f => f.Sort(It.IsAny>())) + .Returns(mockFindFluent.Object); + mockFindFluent + .Setup(f => f.ToCursorAsync(It.IsAny())) + .ReturnsAsync(fakeCursor); + + // Find(filter, options) is the underlying virtual method called by the Find(filter) extension. + mockCollection + .Setup(c => c.FindSync( + It.IsAny>(), + It.IsAny>(), + It.IsAny())) + .Returns(fakeCursor); + + // IMongoCollection.FindAsync is the async path used by the Find extension method. + mockCollection + .Setup(c => c.FindAsync( + It.IsAny>(), + It.IsAny>(), + It.IsAny())) + .ReturnsAsync(fakeCursor); + + var snapshot = await persistor.GetSnapshotAsync("agg-corrupt"); + + Assert.Equal(1, snapshot.UnresolvedCount); + Assert.Single(snapshot.ResolvedMessages); + var resolved = Assert.IsType(snapshot.ResolvedMessages[0]); + Assert.Equal("ok", resolved.Body); + } + + // ── BsonException must be wrapped in PersistenceException ───────────────── + + [Fact] + public async Task InsertDataAsync_BsonSerializationException_WrappedInPersistenceException() + { + var (persistor, mockCollection, _) = CreateMockedPersistor(); + + // InsertDataAsync now upserts via UpdateOneAsync to enforce idempotency on the + // (Name, IdempotencyKey) compound; the mocked Bson failure surfaces from there. + mockCollection + .Setup(c => c.UpdateOneAsync( + It.IsAny>(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .ThrowsAsync(new BsonSerializationException("bson boom")); + + var ex = await Assert.ThrowsAsync(() => + persistor.InsertDataAsync(new AggregatorTestData(Guid.NewGuid()), "test-name", Guid.NewGuid().ToString())); + + Assert.IsAssignableFrom(ex.InnerException); + } + + [Fact] + public async Task GetSnapshotAsync_BsonSerializationException_WrappedInPersistenceException() + { + var (persistor, mockCollection, _) = CreateMockedPersistor(); + + // FindAsync is called by the Find(...) extension inside GetSnapshotAsync. + mockCollection + .Setup(c => c.FindAsync( + It.IsAny>(), + It.IsAny>(), + It.IsAny())) + .ThrowsAsync(new BsonSerializationException("bson boom")); + + var ex = await Assert.ThrowsAsync(() => + persistor.GetSnapshotAsync("test-name")); + + Assert.IsAssignableFrom(ex.InnerException); + } + + [Fact] + public async Task RemoveDataAsync_BsonSerializationException_WrappedInPersistenceException() + { + var (persistor, mockCollection, _) = CreateMockedPersistor(); + + // RemoveDataAsync now uses FindOneAndDeleteAsync (returns the deleted doc so the + // lease state can be inspected). Mock that path instead. + mockCollection + .Setup(c => c.FindOneAndDeleteAsync( + It.IsAny>(), + It.IsAny>(), + It.IsAny())) + .ThrowsAsync(new BsonSerializationException("bson boom")); + + var ex = await Assert.ThrowsAsync(() => + persistor.RemoveDataAsync("test-name", Guid.NewGuid())); + + Assert.IsAssignableFrom(ex.InnerException); + } + + [Fact] + public async Task RemoveAllAsync_BsonSerializationException_WrappedInPersistenceException() + { + var (persistor, mockCollection, _) = CreateMockedPersistor(); + + mockCollection + .Setup(c => c.DeleteManyAsync( + It.IsAny>(), + It.IsAny())) + .ThrowsAsync(new BsonSerializationException("bson boom")); + + var ex = await Assert.ThrowsAsync(() => + persistor.RemoveAllAsync("test-name")); + + Assert.IsAssignableFrom(ex.InnerException); + } + + [Fact] + public async Task RemoveSnapshotAsync_BsonSerializationException_WrappedInPersistenceException() + { + var (persistor, mockCollection, _) = CreateMockedPersistor(); + + mockCollection + .Setup(c => c.DeleteManyAsync( + It.IsAny>(), + It.IsAny())) + .ThrowsAsync(new BsonSerializationException("bson boom")); + + // A snapshot with at least one id so RemoveSnapshotAsync doesn't early-return. + var snapshot = new TestSnapshot([Guid.NewGuid()]); + + var ex = await Assert.ThrowsAsync(() => + persistor.RemoveSnapshotAsync("test-name", snapshot)); + + Assert.IsAssignableFrom(ex.InnerException); + } + + [Fact] + public async Task CountAsync_BsonSerializationException_WrappedInPersistenceException() + { + var (persistor, mockCollection, _) = CreateMockedPersistor(); + + mockCollection + .Setup(c => c.CountDocumentsAsync( + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .ThrowsAsync(new BsonSerializationException("bson boom")); + + var ex = await Assert.ThrowsAsync(() => + persistor.CountAsync("test-name")); + + Assert.IsAssignableFrom(ex.InnerException); + } + + // Minimal IAggregatorSnapshot implementation used by RemoveSnapshotAsync tests. + private sealed class TestSnapshot(IReadOnlyList ids) : IAggregatorSnapshot + { + public IReadOnlyList ResolvedMessages => []; + public IReadOnlyList ResolvedIds => ids; + public int UnresolvedCount => 0; + } + + private static (MongoDbAggregatorPersistor persistor, + Mock> collection, + Mock registry) + CreateMockedPersistor() + { + var mockDatabase = new Mock(); + var mockClient = new Mock(); + var mockCollection = new Mock>(); + var mockIndexManager = new Mock>(); + var registry = new Mock(); + + mockClient + .SetupGet(c => c.Settings) + .Returns(new MongoClientSettings { WriteConcern = WriteConcern.W1 }); + mockClient + .Setup(c => c.GetDatabase(It.IsAny(), It.IsAny())) + .Returns(mockDatabase.Object); + + mockDatabase + .Setup(db => db.GetCollection( + It.IsAny(), + It.IsAny())) + .Returns(mockCollection.Object); + + // EnsureIndexesAsync calls _collection.Indexes.CreateManyAsync(...) + mockCollection + .SetupGet(c => c.Indexes) + .Returns(mockIndexManager.Object); + + mockIndexManager + .Setup(m => m.CreateManyAsync( + It.IsAny>>(), + It.IsAny())) + .ReturnsAsync([]); + + var persistor = new MongoDbAggregatorPersistor( + mockClient.Object, + new MongoDbPersistenceOptions { DatabaseName = "test-db" }, + Mock.Of>(), + registry.Object); + + return (persistor, mockCollection, registry); + } + + /// + /// Single-batch in-memory cursor that returns all items in one MoveNext call. + /// + private sealed class FakeAsyncCursor(List items) : IAsyncCursor + { + private readonly List _items = items; + private bool _moved; + + public IEnumerable Current => _items; + + public bool MoveNext(CancellationToken cancellationToken = default) + { + if (_moved) + { + return false; + } + + _moved = true; + return true; + } + + public Task MoveNextAsync(CancellationToken cancellationToken = default) + { + if (_moved) + { + return Task.FromResult(false); + } + + _moved = true; + return Task.FromResult(true); + } + + public void Dispose() { } + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbAggregatorPersistorCancelOrphanTests.cs b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbAggregatorPersistorCancelOrphanTests.cs new file mode 100644 index 000000000..ca84e11d4 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbAggregatorPersistorCancelOrphanTests.cs @@ -0,0 +1,199 @@ +using Microsoft.Extensions.Logging; +using MongoDB.Driver; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.MongoDb; + +/// +/// Verifies that GetSnapshotAsync attempts a best-effort lease release when +/// UpdateManyAsync or the subsequent read-back throws, regardless of where in +/// the call the exception fires. The key invariant: leaseClaimed is set to +/// true BEFORE the UpdateMany await so the catch path always gates correctly. +/// +[Collection("Mongo Bson serial")] +public class MongoDbAggregatorPersistorCancelOrphanTests +{ + static MongoDbAggregatorPersistorCancelOrphanTests() + { + MongoDbPersistenceExtensions.EnsureGuidSerializerRegistered(); + } + + private static (MongoDbAggregatorPersistor Persistor, + Mock> Collection, + Mock> Logger) + BuildPersistor() + { + var mockIndexManager = new Mock>(); + mockIndexManager + .Setup(m => m.CreateManyAsync( + It.IsAny>>(), + It.IsAny())) + .ReturnsAsync([]); + + var mockCollection = new Mock>(); + mockCollection.SetupGet(c => c.Indexes).Returns(mockIndexManager.Object); + + var mockDatabase = new Mock(); + mockDatabase + .Setup(db => db.GetCollection( + It.IsAny(), + It.IsAny())) + .Returns(mockCollection.Object); + + var mockClient = new Mock(); + mockClient + .SetupGet(c => c.Settings) + .Returns(new MongoClientSettings { WriteConcern = WriteConcern.W1 }); + mockClient + .Setup(c => c.GetDatabase(It.IsAny(), It.IsAny())) + .Returns(mockDatabase.Object); + // Force unsessioned path — standalone Mongo doesn't support sessions. + mockClient + .Setup(c => c.StartSessionAsync(It.IsAny(), It.IsAny())) + .ThrowsAsync(new NotSupportedException("standalone")); + + var logger = new Mock>(); + logger.Setup(l => l.IsEnabled(It.IsAny())).Returns(true); + + var persistor = new MongoDbAggregatorPersistor( + mockClient.Object, + new MongoDbPersistenceOptions { DatabaseName = "test-db" }, + logger.Object, + Mock.Of()); + + return (persistor, mockCollection, logger); + } + + [Fact] + public async Task GetSnapshotAsync_CancelAfterUpdateMany_ReleasesLeaseBestEffort() + { + var (persistor, collection, _) = BuildPersistor(); + + var updateManyCalls = 0; + collection + .Setup(c => c.UpdateManyAsync( + It.IsAny>(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .Callback, + UpdateDefinition, + UpdateOptions, + CancellationToken>( + (_, _, _, ct) => + { + updateManyCalls++; + if (updateManyCalls == 2) + { + // Release call must use CancellationToken.None so the cancelled + // caller token cannot preempt cleanup. + Assert.Equal(CancellationToken.None, ct); + } + }) + .ReturnsAsync(new UpdateResult.Acknowledged(0, 0, null)); + + // The read-back FindAsync throws OCE, simulating cancellation observed after the + // claim committed server-side. Production calls Find().Sort().ToListAsync(), which + // the MongoDB driver routes through FindAsync internally — mock that overload. + collection + .Setup(c => c.FindAsync( + It.IsAny>(), + It.IsAny>(), + It.IsAny())) + .ThrowsAsync(new OperationCanceledException("simulated")); + + await Assert.ThrowsAsync(() => persistor.GetSnapshotAsync("test-agg")); + + Assert.Equal(2, updateManyCalls); // claim + best-effort release + } + + [Fact] + public async Task GetSnapshotAsync_CancelDuringUpdateMany_AttemptsBestEffortRelease() + { + // Cancellation observed by the claim's await may have arrived either before or after + // the server actually committed the lock-update — the caller cannot tell. Setting + // leaseClaimed before the await ensures a release attempt always fires on throw; + // the release filter is gated on LockedBy == sessionId so a release call for a + // claim that never committed is a server-side no-op. + var (persistor, collection, _) = BuildPersistor(); + + var updateManyCalls = 0; + collection + .Setup(c => c.UpdateManyAsync( + It.IsAny>(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .Returns, + UpdateDefinition, + UpdateOptions, + CancellationToken>( + (_, _, _, ct) => + { + updateManyCalls++; + if (updateManyCalls == 1) + { + throw new OperationCanceledException("simulated"); + } + // Release call must use CancellationToken.None. + Assert.Equal(CancellationToken.None, ct); + return Task.FromResult(new UpdateResult.Acknowledged(0, 0, null)); + }); + + await Assert.ThrowsAsync(() => persistor.GetSnapshotAsync("test-agg")); + + Assert.Equal(2, updateManyCalls); // failed claim + best-effort release + } + + [Fact] + public async Task GetSnapshotAsync_CancelDuringBestEffortRelease_SwallowsAndPropagatesOriginalOce() + { + var (persistor, collection, logger) = BuildPersistor(); + + var updateManyCalls = 0; + collection + .Setup(c => c.UpdateManyAsync( + It.IsAny>(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .Returns, + UpdateDefinition, + UpdateOptions, + CancellationToken>( + (_, _, _, _) => + { + updateManyCalls++; + if (updateManyCalls == 1) + { + return Task.FromResult(new UpdateResult.Acknowledged(0, 0, null)); + } + // Release attempt also fails — should be swallowed and logged. + throw new MongoException("simulated release failure"); + }); + + // Read-back FindAsync throws OCE, triggering the catch path. Production calls + // Find().Sort().ToListAsync(); the driver routes that through FindAsync internally. + collection + .Setup(c => c.FindAsync( + It.IsAny>(), + It.IsAny>(), + It.IsAny())) + .ThrowsAsync(new OperationCanceledException("simulated")); + + await Assert.ThrowsAsync(() => persistor.GetSnapshotAsync("test-agg")); + + Assert.Equal(2, updateManyCalls); // claim + failed release + // Release failure must be logged as a Warning and not re-thrown. + logger.Verify(l => l.Log( + LogLevel.Warning, + It.IsAny(), + It.IsAny(), + It.IsAny(), + It.IsAny>()), + Times.Once); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbAggregatorPersistorConstructorTests.cs b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbAggregatorPersistorConstructorTests.cs new file mode 100644 index 000000000..d941a638a --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbAggregatorPersistorConstructorTests.cs @@ -0,0 +1,81 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using MongoDB.Driver; +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.MongoDb; + +[Collection("Mongo Bson serial")] +public class MongoDbAggregatorPersistorConstructorTests +{ + static MongoDbAggregatorPersistorConstructorTests() + { + MongoDbPersistenceExtensions.EnsureGuidSerializerRegistered(); + } + + [Fact] + public void Constructor_NullLogger_ThrowsArgumentNullException() + { + var client = new Mock(); + var typeRegistry = new Mock(); + Assert.Throws(() => + new MongoDbAggregatorPersistor( + client.Object, + new MongoDbPersistenceOptions { DatabaseName = "test" }, + logger: null!, + typeRegistry.Object)); + } + + [Fact] + public void Constructor_NullTypeRegistry_ThrowsArgumentNullException() + { + // Regression guard for the existing null-check that already exists. + var client = new Mock(); + Assert.Throws(() => + new MongoDbAggregatorPersistor( + client.Object, + new MongoDbPersistenceOptions { DatabaseName = "test" }, + NullLogger.Instance, + typeRegistry: null!)); + } + + [Fact] + public void Constructor_RejectsUnacknowledgedWriteConcern() + { + var settings = MongoClientSettings.FromConnectionString("mongodb://localhost:27017"); + settings.WriteConcern = WriteConcern.Unacknowledged; + var client = new MongoClient(settings); + + var options = new MongoDbPersistenceOptions + { + ConnectionString = "mongodb://localhost:27017", + DatabaseName = "tests", + }; + + var typeRegistry = new Mock().Object; + + var ex = Assert.Throws(() => + new MongoDbAggregatorPersistor(client, options, NullLogger.Instance, typeRegistry)); + Assert.Contains("acknowledged WriteConcern", ex.Message); + } + + [Fact] + public void Constructor_AcceptsAcknowledgedWriteConcern() + { + var settings = MongoClientSettings.FromConnectionString("mongodb://localhost:27017"); + settings.WriteConcern = WriteConcern.Acknowledged; + var client = new MongoClient(settings); + + var options = new MongoDbPersistenceOptions + { + ConnectionString = "mongodb://localhost:27017", + DatabaseName = "tests", + }; + + var typeRegistry = new Mock().Object; + + _ = new MongoDbAggregatorPersistor(client, options, NullLogger.Instance, typeRegistry); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbAggregatorPersistorCountResolvedTests.cs b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbAggregatorPersistorCountResolvedTests.cs new file mode 100644 index 000000000..2ff14936e --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbAggregatorPersistorCountResolvedTests.cs @@ -0,0 +1,170 @@ +using Microsoft.Extensions.Logging; +using MongoDB.Bson; +using MongoDB.Driver; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Exceptions; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.MongoDb; + +/// +/// Verifies the Mongo aggregator persistor implements CountResolvedAsync as a typed +/// $in query against the registered type-name set, so the AggregatorProcessor's +/// batch-size flush gate is not triggered by unresolved-only batches. +/// +[Collection("Mongo Bson serial")] +public class MongoDbAggregatorPersistorCountResolvedTests +{ + static MongoDbAggregatorPersistorCountResolvedTests() + { + // Match the established Mongo-test pattern: drive Guid-serializer setup from the + // class cctor so a parallel test runner cannot land on an uninitialised state when + // this test class loads first. + MongoDbPersistenceExtensions.EnsureGuidSerializerRegistered(); + } + + [Fact] + public async Task CountResolvedAsync_NoRegisteredTypes_ReturnsZeroWithoutHittingDb() + { + var (persistor, mockCollection, registry) = CreateMockedPersistor(); + registry.Setup(r => r.AllRegisteredTypeNames()).Returns([]); + + var count = await persistor.CountResolvedAsync("agg"); + + Assert.Equal(0, count); + // Round-trip is skipped — no CountDocumentsAsync should have been issued. + mockCollection.Verify( + c => c.CountDocumentsAsync( + It.IsAny>(), + It.IsAny(), + It.IsAny()), + Times.Never); + } + + [Fact] + public async Task CountResolvedAsync_RegisteredTypes_IssuesCountDocumentsWithRegisteredSet() + { + var (persistor, mockCollection, registry) = CreateMockedPersistor(); + registry.Setup(r => r.AllRegisteredTypeNames()) + .Returns(["Foo.Type1", "Foo.Type2"]); + mockCollection + .Setup(c => c.CountDocumentsAsync( + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .ReturnsAsync(7L); + + var count = await persistor.CountResolvedAsync("agg-r"); + + Assert.Equal(7, count); + registry.Verify(r => r.AllRegisteredTypeNames(), Times.Once); + mockCollection.Verify( + c => c.CountDocumentsAsync( + It.IsAny>(), + It.IsAny(), + It.IsAny()), + Times.Once); + } + + [Fact] + public async Task CountResolvedAsync_ClampsAtIntMaxValue() + { + var (persistor, mockCollection, registry) = CreateMockedPersistor(); + registry.Setup(r => r.AllRegisteredTypeNames()).Returns(["Foo.T"]); + mockCollection + .Setup(c => c.CountDocumentsAsync( + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .ReturnsAsync((long)int.MaxValue + 1L); + + var count = await persistor.CountResolvedAsync("agg-max"); + + Assert.Equal(int.MaxValue, count); + } + + [Fact] + public async Task CountResolvedAsync_BsonSerializationException_WrappedInPersistenceException() + { + var (persistor, mockCollection, registry) = CreateMockedPersistor(); + registry.Setup(r => r.AllRegisteredTypeNames()).Returns(["Foo.T"]); + mockCollection + .Setup(c => c.CountDocumentsAsync( + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .ThrowsAsync(new BsonSerializationException("bson boom")); + + var ex = await Assert.ThrowsAsync( + () => persistor.CountResolvedAsync("agg-bson")); + + Assert.IsAssignableFrom(ex.InnerException); + } + + [Fact] + public async Task CountResolvedAsync_MongoException_WrappedInPersistenceException() + { + var (persistor, mockCollection, registry) = CreateMockedPersistor(); + registry.Setup(r => r.AllRegisteredTypeNames()).Returns(["Foo.T"]); + mockCollection + .Setup(c => c.CountDocumentsAsync( + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .ThrowsAsync(new MongoConnectionException(new MongoDB.Driver.Core.Connections.ConnectionId( + new MongoDB.Driver.Core.Servers.ServerId( + new MongoDB.Driver.Core.Clusters.ClusterId(), + new System.Net.IPEndPoint(System.Net.IPAddress.Loopback, 27017))), + "mongo down")); + + var ex = await Assert.ThrowsAsync( + () => persistor.CountResolvedAsync("agg-mongo")); + + Assert.IsAssignableFrom(ex.InnerException); + } + + private static (MongoDbAggregatorPersistor persistor, + Mock> collection, + Mock registry) + CreateMockedPersistor() + { + var mockDatabase = new Mock(); + var mockClient = new Mock(); + var mockCollection = new Mock>(); + var mockIndexManager = new Mock>(); + var registry = new Mock(); + + mockClient + .SetupGet(c => c.Settings) + .Returns(new MongoClientSettings { WriteConcern = WriteConcern.W1 }); + mockClient + .Setup(c => c.GetDatabase(It.IsAny(), It.IsAny())) + .Returns(mockDatabase.Object); + + mockDatabase + .Setup(db => db.GetCollection( + It.IsAny(), + It.IsAny())) + .Returns(mockCollection.Object); + + mockCollection + .SetupGet(c => c.Indexes) + .Returns(mockIndexManager.Object); + + mockIndexManager + .Setup(m => m.CreateManyAsync( + It.IsAny>>(), + It.IsAny())) + .ReturnsAsync([]); + + var persistor = new MongoDbAggregatorPersistor( + mockClient.Object, + new MongoDbPersistenceOptions { DatabaseName = "test-db" }, + Mock.Of>(), + registry.Object); + + return (persistor, mockCollection, registry); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbAggregatorPersistorForwardCompatTests.cs b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbAggregatorPersistorForwardCompatTests.cs new file mode 100644 index 000000000..00afea484 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbAggregatorPersistorForwardCompatTests.cs @@ -0,0 +1,44 @@ +using System; +using System.Reflection; +using MongoDB.Bson; +using MongoDB.Bson.Serialization; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.MongoDb; + +[Collection("Mongo Bson serial")] +public class MongoDbAggregatorPersistorForwardCompatTests +{ + private static Type GetAggregatorDocumentType() + { + var type = typeof(MongoDbAggregatorPersistor) + .GetNestedType("AggregatorDocument", BindingFlags.NonPublic); + Assert.NotNull(type); + return type!; + } + + [Fact] + public void AggregatorDocument_Deserialize_ToleratesUnknownField() + { + var documentType = GetAggregatorDocumentType(); + + // Construct a BSON document with all known fields plus an extra one that + // a newer worker might add. Without [BsonIgnoreExtraElements] this throws + // FormatException on the unknown element. + var bson = new BsonDocument + { + { "_id", new BsonBinaryData(Guid.NewGuid(), GuidRepresentation.Standard) }, + { "Version", 1 }, + { "DataBson", new BsonDocument("X", 1) }, + { "DataTypeName", typeof(object).AssemblyQualifiedName ?? "object" }, + { "Name", "agg-forward" }, + { "InsertedAtTicks", 0L }, + { "FutureField", "added-by-newer-worker" } + }; + + var result = BsonSerializer.Deserialize(bson, documentType); + + Assert.NotNull(result); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbAggregatorPersistorIndexCacheTests.cs b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbAggregatorPersistorIndexCacheTests.cs new file mode 100644 index 000000000..af5abec51 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbAggregatorPersistorIndexCacheTests.cs @@ -0,0 +1,141 @@ +using Microsoft.Extensions.Logging; +using MongoDB.Bson; +using MongoDB.Driver; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Exceptions; +using ServiceConnect.Persistence.MongoDb; +using ServiceConnect.UnitTests.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.MongoDb; + +/// +/// Verifies the per-instance index cache: after a successful (or benign-conflict) +/// CreateManyAsync call the flag is set and subsequent operations skip the round-trip +/// entirely. Non-benign errors leave the flag unset so the next caller retries index +/// creation. +/// +[Collection("Mongo Bson serial")] +public class MongoDbAggregatorPersistorIndexCacheTests +{ + [Fact] + public async Task EnsureIndexes_CalledTwice_OnlyHitsCreateManyAsyncOnce() + { + var (persistor, _, indexes) = BuildPersistorWithIndexCapture(); + var data = new AggregatorTestData(Guid.NewGuid()); + + await persistor.InsertDataAsync(data, "test-name", Guid.NewGuid().ToString()); + await persistor.InsertDataAsync(data, "test-name", Guid.NewGuid().ToString()); + + indexes.Verify(m => m.CreateManyAsync( + It.IsAny>>(), + It.IsAny()), Times.Once); + } + + [Fact] + public async Task EnsureIndexes_BenignConflict85_FlipsCacheFlag() + { + var (persistor, _, indexes) = BuildPersistorWithIndexCapture(); + + // Wire CreateManyAsync to throw code 85 on first call; the flag should still flip. + var connectionId = new MongoDB.Driver.Core.Connections.ConnectionId( + new MongoDB.Driver.Core.Servers.ServerId( + new MongoDB.Driver.Core.Clusters.ClusterId(), + new System.Net.DnsEndPoint("localhost", 27017))); + var result = new BsonDocument { ["ok"] = 0, ["code"] = 85, ["errmsg"] = "options conflict" }; + var command = new BsonDocument { ["createIndexes"] = "Aggregator" }; + indexes.SetupSequence(m => m.CreateManyAsync( + It.IsAny>>(), + It.IsAny())) + .ThrowsAsync(new MongoCommandException(connectionId, "options conflict", command, result)) + .ReturnsAsync(["ok"]); // second call should be skipped via the cache + + var data = new AggregatorTestData(Guid.NewGuid()); + await persistor.InsertDataAsync(data, "test-name", Guid.NewGuid().ToString()); // benign 85 → flag flips + await persistor.InsertDataAsync(data, "test-name", Guid.NewGuid().ToString()); // skipped via cache + + indexes.Verify(m => m.CreateManyAsync( + It.IsAny>>(), + It.IsAny()), Times.Once); + } + + [Fact] + public async Task EnsureIndexes_NonBenignError_LeavesFlagUnflipped() + { + var (persistor, _, indexes) = BuildPersistorWithIndexCapture(); + + var connectionId = new MongoDB.Driver.Core.Connections.ConnectionId( + new MongoDB.Driver.Core.Servers.ServerId( + new MongoDB.Driver.Core.Clusters.ClusterId(), + new System.Net.DnsEndPoint("localhost", 27017))); + var result = new BsonDocument { ["ok"] = 0, ["code"] = 13, ["errmsg"] = "unauthorized" }; + var command = new BsonDocument { ["createIndexes"] = "Aggregator" }; + + indexes.Setup(m => m.CreateManyAsync( + It.IsAny>>(), + It.IsAny())) + .ThrowsAsync(new MongoCommandException(connectionId, "unauthorized", command, result)); + + var data = new AggregatorTestData(Guid.NewGuid()); + // Non-benign MongoCommandException is wrapped in PersistenceException. + await Assert.ThrowsAsync(() => persistor.InsertDataAsync(data, "test-name", Guid.NewGuid().ToString())); + await Assert.ThrowsAsync(() => persistor.InsertDataAsync(data, "test-name", Guid.NewGuid().ToString())); + + // Flag should NOT have flipped — both calls retry index creation. + indexes.Verify(m => m.CreateManyAsync( + It.IsAny>>(), + It.IsAny()), Times.Exactly(2)); + } + + private static (MongoDbAggregatorPersistor persistor, + Mock> collection, + Mock> indexes) + BuildPersistorWithIndexCapture() + { + var mockDatabase = new Mock(); + var mockClient = new Mock(); + var mockCollection = new Mock>(); + var mockIndexManager = new Mock>(); + + mockClient + .SetupGet(c => c.Settings) + .Returns(new MongoClientSettings { WriteConcern = WriteConcern.W1 }); + mockClient + .Setup(c => c.GetDatabase(It.IsAny(), It.IsAny())) + .Returns(mockDatabase.Object); + + mockDatabase + .Setup(db => db.GetCollection( + It.IsAny(), + It.IsAny())) + .Returns(mockCollection.Object); + + mockCollection + .SetupGet(c => c.Indexes) + .Returns(mockIndexManager.Object); + + // Default: CreateManyAsync succeeds. + mockIndexManager + .Setup(m => m.CreateManyAsync( + It.IsAny>>(), + It.IsAny())) + .ReturnsAsync([]); + + // InsertOneAsync must succeed so tests that don't care about the insert don't fail there. + mockCollection + .Setup(c => c.InsertOneAsync( + It.IsAny(), + It.IsAny(), + It.IsAny())) + .Returns(Task.CompletedTask); + + var persistor = new MongoDbAggregatorPersistor( + mockClient.Object, + new MongoDbPersistenceOptions { DatabaseName = "test-db" }, + Mock.Of>(), + Mock.Of()); + + return (persistor, mockCollection, mockIndexManager); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbAggregatorPersistorIndexInitTests.cs b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbAggregatorPersistorIndexInitTests.cs new file mode 100644 index 000000000..251e9da77 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbAggregatorPersistorIndexInitTests.cs @@ -0,0 +1,159 @@ +using Microsoft.Extensions.Logging; +using MongoDB.Bson; +using MongoDB.Bson.Serialization; +using MongoDB.Driver; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.MongoDb; + +/// +/// Verifies that EnsureIndexesAsync uses a single-flight semaphore so that +/// concurrent cold-start callers do not each fire CreateManyAsync. +/// +[Collection("Mongo Bson serial")] +public class MongoDbAggregatorPersistorIndexInitTests +{ + static MongoDbAggregatorPersistorIndexInitTests() + { + MongoDbPersistenceExtensions.EnsureGuidSerializerRegistered(); + } + + // Renders an IndexKeysDefinition to its canonical JSON form for shape assertions. + // Lives at class scope so the static constructor's Guid serializer registration + // (which xUnit runs once per collection) is guaranteed to fire before any call. + private static string RenderKeys(IndexKeysDefinition keys) => + keys.Render(new RenderArgs( + BsonSerializer.LookupSerializer(), + BsonSerializer.SerializerRegistry)).ToJson(); + + [Fact] + public async Task EnsureIndexesAsync_ConcurrentColdStart_FiresCreateManyExactlyOnce() + { + // Use a gate TCS so that the first CreateManyAsync caller holds the channel + // open long enough for all other concurrent callers to pile in. Without a + // semaphore they all race past Volatile.Read(_indexed)==0 and each invoke + // CreateManyAsync. With the semaphore only the winner enters; the rest block + // and then see _indexed==1 on re-check. + var gate = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var indexManager = new Mock>(); + var createCount = 0; + indexManager + .Setup(m => m.CreateManyAsync( + It.IsAny>>(), + It.IsAny())) + .Returns(async () => + { + Interlocked.Increment(ref createCount); + // Yield so other tasks can progress and hit EnsureIndexesAsync while + // this call is "in flight", maximising the window for a race. + await gate.Task.ConfigureAwait(false); + return (IEnumerable)["ok"]; + }); + + var collection = new Mock>(); + collection.SetupGet(c => c.Indexes).Returns(indexManager.Object); + collection + .Setup(c => c.InsertOneAsync( + It.IsAny(), + It.IsAny(), + It.IsAny())) + .Returns(Task.CompletedTask); + + var database = new Mock(); + database.Setup(d => d.GetCollection( + It.IsAny(), It.IsAny())) + .Returns(collection.Object); + + var client = new Mock(); + client.SetupGet(c => c.Settings).Returns(new MongoClientSettings { WriteConcern = WriteConcern.W1 }); + client.Setup(c => c.GetDatabase(It.IsAny(), It.IsAny())) + .Returns(database.Object); + + var persistor = new MongoDbAggregatorPersistor( + client.Object, + new MongoDbPersistenceOptions { DatabaseName = "tests" }, + Mock.Of>(), + Mock.Of()); + + // Fire 8 concurrent inserts from separate thread-pool threads. + // Task.Run ensures they run on distinct threads and can hit EnsureIndexesAsync + // concurrently rather than sequentially on the same thread. + const int concurrency = 8; + var tasks = Enumerable.Range(0, concurrency) + .Select(_ => Task.Run(() => persistor.InsertDataAsync( + new TestData { CorrelationId = Guid.NewGuid() }, "test", Guid.NewGuid().ToString()))) + .ToArray(); + + // Let the tasks get started and queue up against EnsureIndexesAsync. + await Task.Delay(50); + + // Release the gate so the in-flight CreateManyAsync (if any) can finish. + gate.SetResult(); + + await Task.WhenAll(tasks); + + Assert.Equal(1, createCount); + } + + [Fact] + public async Task EnsureIndexesAsync_registers_Name_LockedBy_compound_index() + { + // ReleaseSnapshotAsync filters by (Name, LockedBy) to release the lease for a + // specific session. The lease-bounded tail read in GetSnapshotAsync also filters + // by LockedBy after Name. Without a compound index covering both fields the + // LockedBy match after the Name scan degrades to an in-memory comparison at high + // per-Name cardinality. + IEnumerable>? captured = null; + + var indexManager = new Mock>(); + indexManager + .Setup(m => m.CreateManyAsync( + It.IsAny>>(), + It.IsAny())) + .Callback>, CancellationToken>( + (m, _) => captured = [.. m]) + .ReturnsAsync(["ok"]); + + var collection = new Mock>(); + collection.SetupGet(c => c.Indexes).Returns(indexManager.Object); + collection + .Setup(c => c.InsertOneAsync( + It.IsAny(), + It.IsAny(), + It.IsAny())) + .Returns(Task.CompletedTask); + + var database = new Mock(); + database.Setup(d => d.GetCollection( + It.IsAny(), It.IsAny())) + .Returns(collection.Object); + + var client = new Mock(); + client.SetupGet(c => c.Settings).Returns(new MongoClientSettings { WriteConcern = WriteConcern.W1 }); + client.Setup(c => c.GetDatabase(It.IsAny(), It.IsAny())) + .Returns(database.Object); + + var persistor = new MongoDbAggregatorPersistor( + client.Object, + new MongoDbPersistenceOptions { DatabaseName = "tests" }, + Mock.Of>(), + Mock.Of()); + + await persistor.InsertDataAsync( + new TestData { CorrelationId = Guid.NewGuid() }, "test", Guid.NewGuid().ToString()); + + Assert.NotNull(captured); + + // Compound (Name, LockedBy) — covers the release filter and the lease-bounded read-back filter. + Assert.Contains(captured!, m => + RenderKeys(m.Keys) == "{ \"Name\" : 1, \"LockedBy\" : 1 }"); + } + + private sealed class TestData : IHasCorrelationId + { + public Guid CorrelationId { get; set; } + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbAggregatorPersistorNullDataTests.cs b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbAggregatorPersistorNullDataTests.cs new file mode 100644 index 000000000..43d9e4647 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbAggregatorPersistorNullDataTests.cs @@ -0,0 +1,43 @@ +using Microsoft.Extensions.Logging; +using MongoDB.Driver; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.MongoDb; + +[Collection("Mongo Bson serial")] +public class MongoDbAggregatorPersistorNullDataTests +{ + [Fact] + public async Task InsertDataAsync_NullData_ThrowsArgumentNullException() + { + var persistor = CreatePersistor(); + + var ex = await Assert.ThrowsAsync(() => + persistor.InsertDataAsync(data: null!, name: "agg", idempotencyKey: Guid.NewGuid().ToString())); + + Assert.Equal("data", ex.ParamName); + } + + private static MongoDbAggregatorPersistor CreatePersistor() + { + var client = new Mock(); + var database = new Mock(); + var collection = new Mock>(); + + client.SetupGet(c => c.Settings).Returns(new MongoClientSettings { WriteConcern = WriteConcern.W1 }); + client.Setup(c => c.GetDatabase("test-db", It.IsAny())) + .Returns(database.Object); + database.Setup(d => d.GetCollection( + "Aggregator", It.IsAny())) + .Returns(collection.Object); + + return new MongoDbAggregatorPersistor( + client.Object, + new MongoDbPersistenceOptions { DatabaseName = "test-db" }, + Mock.Of>(), + Mock.Of()); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbAggregatorPersistorReleaseSnapshotTests.cs b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbAggregatorPersistorReleaseSnapshotTests.cs new file mode 100644 index 000000000..6d62a028d --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbAggregatorPersistorReleaseSnapshotTests.cs @@ -0,0 +1,162 @@ +using Microsoft.Extensions.Logging; +using MongoDB.Bson; +using MongoDB.Driver; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.MongoDb; + +/// +/// Verifies that ReleaseSnapshotAsync always attempts the session-id-gated UpdateMany, +/// even when every row in the snapshot failed type resolution (ResolvedIds is empty). +/// The release filter matches on LockedBy == sessionId, so it is a server-side no-op +/// when nothing was actually claimed — but it correctly releases rows that were. +/// +[Collection("Mongo Bson serial")] +public class MongoDbAggregatorPersistorReleaseSnapshotTests +{ + static MongoDbAggregatorPersistorReleaseSnapshotTests() + { + MongoDbPersistenceExtensions.EnsureGuidSerializerRegistered(); + } + + private static (MongoDbAggregatorPersistor Persistor, + Mock> Collection, + Mock Registry) + BuildPersistor() + { + var mockIndexManager = new Mock>(); + mockIndexManager + .Setup(m => m.CreateManyAsync( + It.IsAny>>(), + It.IsAny())) + .ReturnsAsync([]); + + var mockCollection = new Mock>(); + mockCollection.SetupGet(c => c.Indexes).Returns(mockIndexManager.Object); + + var mockDatabase = new Mock(); + mockDatabase + .Setup(db => db.GetCollection( + It.IsAny(), + It.IsAny())) + .Returns(mockCollection.Object); + + var mockClient = new Mock(); + mockClient + .SetupGet(c => c.Settings) + .Returns(new MongoClientSettings { WriteConcern = WriteConcern.W1 }); + mockClient + .Setup(c => c.GetDatabase(It.IsAny(), It.IsAny())) + .Returns(mockDatabase.Object); + // Simulate a standalone server so GetSnapshotAsync takes the unsessioned path. + mockClient + .Setup(c => c.StartSessionAsync(It.IsAny(), It.IsAny())) + .ThrowsAsync(new NotSupportedException("standalone")); + + var registry = new Mock(); + + var persistor = new MongoDbAggregatorPersistor( + mockClient.Object, + new MongoDbPersistenceOptions { DatabaseName = "test-db" }, + Mock.Of>(), + registry.Object); + + return (persistor, mockCollection, registry); + } + + [Fact] + public async Task ReleaseSnapshotAsync_AllUnresolved_StillInvokesSessionIdGatedRelease() + { + // Arrange: one document whose type cannot be resolved → UnresolvedCount = 1, ResolvedIds empty. + var (persistor, collection, registry) = BuildPersistor(); + + registry + .Setup(r => r.TryResolve(It.IsAny(), out It.Ref.IsAny!)) + .Returns(false); + + var doc = new MongoDbAggregatorPersistor.AggregatorDocument + { + Id = Guid.NewGuid(), + Name = "agg-unresolved", + DataTypeName = "Unknown.Type", + DataBson = [], + Version = 1, + InsertedAtTicks = 1L, + }; + + var fakeCursor = new FakeAsyncCursor([doc]); + + collection + .Setup(c => c.UpdateManyAsync( + It.IsAny>(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .ReturnsAsync(new UpdateResult.Acknowledged(1, 1, null)); + + // FindAsync is routed through by the Find extension used in GetSnapshotAsync. + collection + .Setup(c => c.FindAsync( + It.IsAny>(), + It.IsAny>(), + It.IsAny())) + .ReturnsAsync(fakeCursor); + + // Act: get snapshot (all-unresolved) then release it. + var snapshot = await persistor.GetSnapshotAsync("agg-unresolved"); + + Assert.Empty(snapshot.ResolvedIds); + Assert.Equal(1, snapshot.UnresolvedCount); + + // Reset call count so we can assert only the release call. + collection.Invocations.Clear(); + + await persistor.ReleaseSnapshotAsync("agg-unresolved", snapshot); + + // Assert: UpdateManyAsync must have been invoked (session-id-gated release). + collection.Verify(c => c.UpdateManyAsync( + It.IsAny>(), + It.IsAny>(), + It.IsAny(), + It.IsAny()), + Times.Once); + } + + /// + /// Single-batch in-memory cursor that returns all items in one MoveNext call. + /// + private sealed class FakeAsyncCursor(List items) : IAsyncCursor + { + private readonly List _items = items; + private bool _moved; + + public IEnumerable Current => _items; + + public bool MoveNext(CancellationToken cancellationToken = default) + { + if (_moved) + { + return false; + } + + _moved = true; + return true; + } + + public Task MoveNextAsync(CancellationToken cancellationToken = default) + { + if (_moved) + { + return Task.FromResult(false); + } + + _moved = true; + return Task.FromResult(true); + } + + public void Dispose() { } + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbAggregatorPersistorRemoveDataDistinctionTests.cs b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbAggregatorPersistorRemoveDataDistinctionTests.cs new file mode 100644 index 000000000..b0ba2099b --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbAggregatorPersistorRemoveDataDistinctionTests.cs @@ -0,0 +1,115 @@ +using Microsoft.Extensions.Logging; +using MongoDB.Bson; +using MongoDB.Driver; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Exceptions; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.MongoDb; + +/// +/// RemoveDataAsync must throw for both "could-not-find" +/// shapes — name bucket entirely empty AND name bucket exists but no row matched the +/// supplied CorrelationId. The contract on +/// names the single exception type, and the InMemory persistor matches; mismatch would +/// break test→prod migration paths. +/// +[Collection("Mongo Bson serial")] +public class MongoDbAggregatorPersistorRemoveDataDistinctionTests +{ + [Fact] + public async Task RemoveData_NoRowsForName_ThrowsConcurrencyException() + { + // DeleteOneAsync returns acknowledged with DeletedCount=0. + // CountDocumentsAsync (Name-only filter) also returns 0 — the name bucket is empty. + var (persistor, collection) = CreateMockedPersistor(); + + collection + .Setup(c => c.DeleteOneAsync( + It.IsAny>(), + It.IsAny())) + .ReturnsAsync(new DeleteResult.Acknowledged(0)); + + collection + .Setup(c => c.CountDocumentsAsync( + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .ReturnsAsync(0L); + + var ex = await Assert.ThrowsAsync(() => + persistor.RemoveDataAsync("missing-name", Guid.NewGuid())); + Assert.Contains("no rows for Name", ex.Message); + } + + [Fact] + public async Task RemoveData_RowsForNameButNoCorrelation_ThrowsConcurrencyExceptionWithRowCount() + { + // DeleteOneAsync returns acknowledged with DeletedCount=0. + // CountDocumentsAsync (Name-only filter) returns 5 — name bucket has rows, just not this CorrelationId. + var (persistor, collection) = CreateMockedPersistor(); + + collection + .Setup(c => c.DeleteOneAsync( + It.IsAny>(), + It.IsAny())) + .ReturnsAsync(new DeleteResult.Acknowledged(0)); + + collection + .Setup(c => c.CountDocumentsAsync( + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .ReturnsAsync(5L); + + var ex = await Assert.ThrowsAsync(() => + persistor.RemoveDataAsync("test-name", Guid.NewGuid())); + + Assert.Contains("5 row", ex.Message); + } + + private static (MongoDbAggregatorPersistor persistor, + Mock> collection) + CreateMockedPersistor() + { + var mockDatabase = new Mock(); + var mockClient = new Mock(); + var mockCollection = new Mock>(); + var mockIndexManager = new Mock>(); + var registry = new Mock(); + + mockClient + .SetupGet(c => c.Settings) + .Returns(new MongoClientSettings { WriteConcern = WriteConcern.W1 }); + mockClient + .Setup(c => c.GetDatabase(It.IsAny(), It.IsAny())) + .Returns(mockDatabase.Object); + + mockDatabase + .Setup(db => db.GetCollection( + It.IsAny(), + It.IsAny())) + .Returns(mockCollection.Object); + + // EnsureIndexesAsync calls _collection.Indexes.CreateManyAsync(...) + mockCollection + .SetupGet(c => c.Indexes) + .Returns(mockIndexManager.Object); + + mockIndexManager + .Setup(m => m.CreateManyAsync( + It.IsAny>>(), + It.IsAny())) + .ReturnsAsync([]); + + var persistor = new MongoDbAggregatorPersistor( + mockClient.Object, + new MongoDbPersistenceOptions { DatabaseName = "test-db" }, + Mock.Of>(), + registry.Object); + + return (persistor, mockCollection); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbAggregatorPersistorSortSequenceTests.cs b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbAggregatorPersistorSortSequenceTests.cs new file mode 100644 index 000000000..8e10e4b18 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbAggregatorPersistorSortSequenceTests.cs @@ -0,0 +1,182 @@ +using Microsoft.Extensions.Logging; +using MongoDB.Bson; +using MongoDB.Bson.Serialization; +using MongoDB.Driver; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.MongoDb; +using ServiceConnect.UnitTests.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.MongoDb; + +/// +/// Verifies the sort shape and monotonic InsertSequence behaviour: snapshots are sorted +/// by Time then InsertSequence so equal-Time inserts stay in arrival order. +/// +[Collection("Mongo Bson serial")] +public class MongoDbAggregatorPersistorSortSequenceTests +{ + [Fact] + public async Task GetSnapshot_SortIncludesInsertSequenceTieBreaker() + { + // Capture the FindOptions that GetSnapshotAsync passes to FindAsync; the sort + // definition is embedded there by the MongoDB driver's Find extension method. + FindOptions? capturedOptions = null; + + var (persistor, _, _) = CreateMockedPersistor(captureOptions: opts => capturedOptions = opts); + + await persistor.GetSnapshotAsync("test-name"); + + Assert.NotNull(capturedOptions); + Assert.NotNull(capturedOptions!.Sort); + + var rendered = capturedOptions.Sort! + .Render(new RenderArgs( + BsonSerializer.LookupSerializer(), + BsonSerializer.SerializerRegistry)) + .ToJson(); + + Assert.Contains("\"InsertedAtTicks\" : 1", rendered); + Assert.Contains("\"InsertSequence\" : 1", rendered); + // Id is the final cross-process tie-break; verify it is also present. + Assert.Contains("\"_id\" : 1", rendered); + } + + [Fact] + public async Task InsertData_AssignsMonotonicInsertSequence() + { + // InsertDataAsync upserts via UpdateOneAsync with SetOnInsert(InsertSequence). + // Capture each rendered UpdateDefinition and extract the InsertSequence value + // from its $setOnInsert subdocument. + var captured = new List>(); + + var (persistor, _, _) = CreateMockedPersistor(captureUpsert: captured.Add); + + await persistor.InsertDataAsync(new AggregatorTestData(Guid.NewGuid()) { Value = "first" }, "agg", Guid.NewGuid().ToString()); + await persistor.InsertDataAsync(new AggregatorTestData(Guid.NewGuid()) { Value = "second" }, "agg", Guid.NewGuid().ToString()); + + Assert.Equal(2, captured.Count); + var seq0 = ExtractInsertSequence(captured[0]); + var seq1 = ExtractInsertSequence(captured[1]); + Assert.True(seq1 > seq0, + $"Expected InsertSequence to be monotonically increasing; got {seq0} then {seq1}"); + } + + private static long ExtractInsertSequence(UpdateDefinition update) + { + var rendered = update.Render(new RenderArgs( + BsonSerializer.LookupSerializer(), + BsonSerializer.SerializerRegistry)); + var setOnInsert = rendered.AsBsonDocument["$setOnInsert"].AsBsonDocument; + return setOnInsert["InsertSequence"].ToInt64(); + } + + private static (MongoDbAggregatorPersistor persistor, + Mock> collection, + Mock registry) + CreateMockedPersistor( + Action>? captureOptions = null, + Action>? captureUpsert = null) + { + var mockDatabase = new Mock(); + var mockClient = new Mock(); + var mockCollection = new Mock>(); + var mockIndexManager = new Mock>(); + var registry = new Mock(); + + mockClient + .SetupGet(c => c.Settings) + .Returns(new MongoClientSettings { WriteConcern = WriteConcern.W1 }); + mockClient + .Setup(c => c.GetDatabase(It.IsAny(), It.IsAny())) + .Returns(mockDatabase.Object); + + mockDatabase + .Setup(db => db.GetCollection( + It.IsAny(), + It.IsAny())) + .Returns(mockCollection.Object); + + mockCollection + .SetupGet(c => c.Indexes) + .Returns(mockIndexManager.Object); + + mockIndexManager + .Setup(m => m.CreateManyAsync( + It.IsAny>>(), + It.IsAny())) + .ReturnsAsync([]); + + // UpdateOneAsync (upsert) capture for the InsertDataAsync code path. + mockCollection + .Setup(c => c.UpdateOneAsync( + It.IsAny>(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .Callback, + UpdateDefinition, + UpdateOptions, + CancellationToken>( + (_, update, _, _) => captureUpsert?.Invoke(update)) + .ReturnsAsync(new UpdateResult.Acknowledged(0, 1, null)); + + // FindAsync: captures options (which embed the sort) and returns an empty cursor. + var emptyDocs = new List(); + var fakeCursor = new FakeAsyncCursor(emptyDocs); + + mockCollection + .Setup(c => c.FindAsync( + It.IsAny>(), + It.IsAny>(), + It.IsAny())) + .Callback, + FindOptions, + CancellationToken>( + (_, opts, _) => captureOptions?.Invoke(opts)) + .ReturnsAsync(fakeCursor); + + var persistor = new MongoDbAggregatorPersistor( + mockClient.Object, + new MongoDbPersistenceOptions { DatabaseName = "test-db" }, + Mock.Of>(), + registry.Object); + + return (persistor, mockCollection, registry); + } + + private sealed class FakeAsyncCursor(List items) : IAsyncCursor + { + private readonly List _items = items; + private bool _moved; + + public IEnumerable Current => _items; + + public bool MoveNext(CancellationToken cancellationToken = default) + { + if (_moved) + { + return false; + } + + _moved = true; + return true; + } + + public Task MoveNextAsync(CancellationToken cancellationToken = default) + { + if (_moved) + { + return Task.FromResult(false); + } + + _moved = true; + return Task.FromResult(true); + } + + public void Dispose() { } + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbPersistenceOptionsAggregatorLeaseTests.cs b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbPersistenceOptionsAggregatorLeaseTests.cs new file mode 100644 index 000000000..b831c1f98 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbPersistenceOptionsAggregatorLeaseTests.cs @@ -0,0 +1,24 @@ +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.MongoDb; + +public sealed class MongoDbPersistenceOptionsAggregatorLeaseTests +{ + [Fact] + public void AggregatorLeaseDuration_DefaultIsFiveMinutes() + { + var options = new MongoDbPersistenceOptions(); + Assert.Equal(System.TimeSpan.FromMinutes(5), options.AggregatorLeaseDuration); + } + + [Fact] + public void AggregatorLeaseDuration_IsSettable() + { + var options = new MongoDbPersistenceOptions + { + AggregatorLeaseDuration = System.TimeSpan.FromSeconds(30), + }; + Assert.Equal(System.TimeSpan.FromSeconds(30), options.AggregatorLeaseDuration); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbProcessManagerFinderConstructorTests.cs b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbProcessManagerFinderConstructorTests.cs new file mode 100644 index 000000000..f51c85588 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbProcessManagerFinderConstructorTests.cs @@ -0,0 +1,81 @@ +using Moq; +using MongoDB.Driver; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.MongoDb; + +[Collection("Mongo Bson serial")] +public class MongoDbProcessManagerFinderConstructorTests +{ + static MongoDbProcessManagerFinderConstructorTests() + { + MongoDbPersistenceExtensions.EnsureGuidSerializerRegistered(); + } + + private static Mock BuildAcknowledgedClient() + { + var client = new Mock(); + client.SetupGet(c => c.Settings).Returns(new MongoClientSettings { WriteConcern = WriteConcern.W1 }); + return client; + } + + [Fact] + public void Constructor_NullLogger_ThrowsArgumentNullException() + { + var client = BuildAcknowledgedClient(); + Assert.Throws(() => + new MongoDbProcessManagerFinder( + client.Object, + new MongoDbPersistenceOptions { DatabaseName = "test" }, + logger: null!)); + } + + [Fact] + public void Constructor_UnacknowledgedWriteConcern_ThrowsInvalidOperationException() + { + var client = new Mock(); + client.SetupGet(c => c.Settings).Returns(new MongoClientSettings { WriteConcern = WriteConcern.Unacknowledged }); + + var ex = Assert.Throws(() => + new MongoDbProcessManagerFinder( + client.Object, + new MongoDbPersistenceOptions { DatabaseName = "test" }, + Microsoft.Extensions.Logging.Abstractions.NullLogger.Instance)); + + Assert.Contains("WriteConcern", ex.Message); + Assert.Contains("acknowledged", ex.Message, StringComparison.OrdinalIgnoreCase); + } + + [Fact] + public void Constructor_W1WriteConcern_Succeeds() + { + var client = new Mock(); + client.SetupGet(c => c.Settings).Returns(new MongoClientSettings { WriteConcern = WriteConcern.W1 }); + var database = new Mock(); + client.Setup(c => c.GetDatabase("test", null)).Returns(database.Object); + + var finder = new MongoDbProcessManagerFinder( + client.Object, + new MongoDbPersistenceOptions { DatabaseName = "test" }, + Microsoft.Extensions.Logging.Abstractions.NullLogger.Instance); + + Assert.NotNull(finder); + } + + [Fact] + public void Constructor_MajorityWriteConcern_Succeeds() + { + var client = new Mock(); + client.SetupGet(c => c.Settings).Returns(new MongoClientSettings { WriteConcern = WriteConcern.WMajority }); + var database = new Mock(); + client.Setup(c => c.GetDatabase("test", null)).Returns(database.Object); + + var finder = new MongoDbProcessManagerFinder( + client.Object, + new MongoDbPersistenceOptions { DatabaseName = "test" }, + Microsoft.Extensions.Logging.Abstractions.NullLogger.Instance); + + Assert.NotNull(finder); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbProcessManagerFinderExpressionTests.cs b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbProcessManagerFinderExpressionTests.cs new file mode 100644 index 000000000..f1b6e22a8 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbProcessManagerFinderExpressionTests.cs @@ -0,0 +1,188 @@ +using System.Linq.Expressions; +using Microsoft.Extensions.Logging.Abstractions; +using MongoDB.Driver; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.MongoDb; + +// Expression.Convert for property-hierarchy queries. +// +// A dynamic predicate that uses Expression.Constant(value, value.GetType()) on the +// RHS — i.e., the runtime type of the message value — silently misses stored documents +// whenever the saga-side property is declared as a wider/different type (long vs +// message-side int, Nullable vs T, interface vs concrete): the resulting BSON +// filter renders against the runtime type rather than the declared type. The InMemory +// finder wraps the RHS in Expression.Convert(.. , declaredPropertyType); these tests +// pin the equivalent wrapping into MongoDb's expression-tree shape so future drift is +// caught at the structural level. +[Collection("Mongo Bson serial")] +public class MongoDbProcessManagerFinderExpressionTests +{ + static MongoDbProcessManagerFinderExpressionTests() + { + // The finder's static ctor calls this on first construction, but pin it + // explicitly so test ordering inside the assembly doesn't matter. + MongoDbPersistenceExtensions.EnsureGuidSerializerRegistered(); + } + + public sealed class TestSagaData : IProcessManagerData + { + public Guid CorrelationId { get; set; } + public long LongProp { get; set; } + public int? NullableIntProp { get; set; } + } + + public sealed class TestMessage(Guid correlationId) : Message(correlationId) + { + // int on the message side, long on the saga side — the type-mismatch case where + // the expression-tree's RHS must be Convert(Constant(int), long) rather than a + // bare Constant(int) so the MongoDB driver can match the saga's long-typed field. + public int LongProp { get; set; } + public int NullableIntProp { get; set; } + } + + private sealed class InlineMapper : IProcessManagerPropertyMapper + { + private readonly List _mappings = []; + public IReadOnlyList Mappings => _mappings; + + public void Add(string sagaPropertyName, Type declaredType, Type messageType, Func messageProp) + { + _mappings.Add(new ProcessManagerToMessageMap + { + MessageType = messageType, + MessageProp = messageProp, + PropertiesHierarchy = new Dictionary(StringComparer.Ordinal) + { + [sagaPropertyName] = declaredType + } + }); + } + + public void ConfigureMapping( + Expression> processManagerProperty, + Expression> messageExpression) + where TProcessManagerData : IProcessManagerData + where TMessage : Message + { + // Not used by these tests — the inline Add method is enough. + throw new NotSupportedException(); + } + } + + private static (MongoDbProcessManagerFinder Finder, Mock>> Collection) + BuildFinder() + { + var indexes = new Mock>>(); + indexes.Setup(m => m.CreateOneAsync( + It.IsAny>>(), + It.IsAny(), + It.IsAny())) + .ReturnsAsync("ok"); + + var collection = new Mock>>(); + collection.SetupGet(c => c.Indexes).Returns(indexes.Object); + + var database = new Mock(); + database.Setup(d => d.GetCollection>(It.IsAny(), null)) + .Returns(collection.Object); + + var client = new Mock(); + client.SetupGet(c => c.Settings).Returns(new MongoClientSettings { WriteConcern = WriteConcern.W1 }); + client.Setup(c => c.GetDatabase(It.IsAny(), null)).Returns(database.Object); + + var finder = new MongoDbProcessManagerFinder( + client.Object, + new MongoDbPersistenceOptions { DatabaseName = "test" }, + NullLogger.Instance); + + return (finder, collection); + } + + private static (MongoDbProcessManagerFinder Finder, Func, bool>>> Capture) + BuildFinderAndCapture() + { + var (finder, collection) = BuildFinder(); + + FilterDefinition>? captured = null; + var emptyCursor = new Mock>>(); + emptyCursor.Setup(c => c.MoveNextAsync(It.IsAny())).ReturnsAsync(false); + emptyCursor.SetupGet(c => c.Current).Returns([]); + + // The Find(Expression).FirstOrDefaultAsync chain bottoms out in + // IMongoCollection.FindAsync(FilterDefinition, FindOptions, ct) on this + // collection. Capture the FilterDefinition there. + collection.Setup(c => c.FindAsync( + It.IsAny>>(), + It.IsAny, MongoDbData>>(), + It.IsAny())) + .Callback>, FindOptions, MongoDbData>, CancellationToken>( + (f, _, _) => captured = f) + .ReturnsAsync(emptyCursor.Object); + + return (finder, () => + { + Assert.NotNull(captured); + // The Find(Expression) extension wraps the lambda in an + // ExpressionFilterDefinition, which exposes the original + // expression via the public Expression property. + var exprFilter = Assert.IsType>>(captured!); + return exprFilter.Expression; + }); + } + + [Fact] + public async Task FindDataAsync_MessagePropIntSagaPropLong_ExpressionContainsConvertToLong() + { + var (finder, capture) = BuildFinderAndCapture(); + + var mapper = new InlineMapper(); + mapper.Add( + sagaPropertyName: nameof(TestSagaData.LongProp), + declaredType: typeof(long), + messageType: typeof(TestMessage), + messageProp: m => ((TestMessage)m).LongProp); + + var msg = new TestMessage(Guid.NewGuid()) { LongProp = 42 }; + await finder.FindDataAsync(mapper, msg); + + var expr = capture(); + var equal = Assert.IsAssignableFrom(expr.Body); + // equal.Right must be a UnaryExpression(Convert, type=long) wrapping the int + // constant — a bare ConstantExpression of type int would not match the saga's + // long-typed field via the MongoDB driver's expression translation. + var convert = Assert.IsAssignableFrom(equal.Right); + Assert.Equal(ExpressionType.Convert, convert.NodeType); + Assert.Equal(typeof(long), convert.Type); + var inner = Assert.IsAssignableFrom(convert.Operand); + Assert.Equal(42, inner.Value); + Assert.Equal(typeof(int), inner.Type); + } + + [Fact] + public async Task FindDataAsync_NullableSagaProperty_ExpressionContainsConvertToNullable() + { + var (finder, capture) = BuildFinderAndCapture(); + + var mapper = new InlineMapper(); + mapper.Add( + sagaPropertyName: nameof(TestSagaData.NullableIntProp), + declaredType: typeof(int?), + messageType: typeof(TestMessage), + messageProp: m => ((TestMessage)m).NullableIntProp); + + var msg = new TestMessage(Guid.NewGuid()) { NullableIntProp = 7 }; + await finder.FindDataAsync(mapper, msg); + + var expr = capture(); + var equal = Assert.IsAssignableFrom(expr.Body); + // equal.Right must be Convert(Constant(int), int?) so the comparison lifts to + // the saga's nullable-int field type. + var convert = Assert.IsAssignableFrom(equal.Right); + Assert.Equal(ExpressionType.Convert, convert.NodeType); + Assert.Equal(typeof(int?), convert.Type); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbProcessManagerFinderIdempotentUpdateTests.cs b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbProcessManagerFinderIdempotentUpdateTests.cs new file mode 100644 index 000000000..c6150e482 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbProcessManagerFinderIdempotentUpdateTests.cs @@ -0,0 +1,112 @@ +using System.Reflection; +using Microsoft.Extensions.Logging; +using MongoDB.Driver; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.MongoDb; + +[Collection("Mongo Bson serial")] +public class MongoDbProcessManagerFinderIdempotentUpdateTests +{ + [Fact] + public async Task UpdateDataAsync_MatchedButNotModified_DoesNotThrowConcurrencyException() + { + var finder = CreateFinder(out var database, out _); + var collection = new Mock>>(); + var versionedData = new MongoDbData + { + Id = Guid.NewGuid(), + Version = 4, + Data = new TestProcessManagerData() + }; + + var indexedCollections = (System.Collections.Concurrent.ConcurrentDictionary)typeof(MongoDbProcessManagerFinder) + .GetField("_indexedCollections", BindingFlags.Instance | BindingFlags.NonPublic)! + .GetValue(finder)!; + indexedCollections.TryAdd(MongoDbProcessManagerFinder.SanitizeCollectionName(typeof(TestProcessManagerData).FullName!), true); + + database.Setup(db => db.GetCollection>( + MongoDbProcessManagerFinder.SanitizeCollectionName(typeof(TestProcessManagerData).FullName!), + It.IsAny())) + .Returns(collection.Object); + + // Idempotent server response: row matched the filter but no field bytes changed + // (e.g., replacement document identical). MatchedCount=1, ModifiedCount=0. + collection.Setup(c => c.ReplaceOneAsync( + It.IsAny>>(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .ReturnsAsync(new ReplaceOneResult.Acknowledged(matchedCount: 1, modifiedCount: 0, upsertedId: null)); + + // Should NOT throw — the row was found at the expected version, that's all + // optimistic concurrency cares about. + await finder.UpdateDataAsync(versionedData, CancellationToken.None); + + // Caller's version must reflect the bump because the write was acknowledged + // and the row was found at the expected version. + Assert.Equal(5L, versionedData.Version); + } + + [Fact] + public async Task UpdateDataAsync_NoMatch_ThrowsConcurrencyException() + { + // Sanity check: when the filter doesn't match (stale version / row gone), + // MatchedCount=0 and ModifiedCount=0 — concurrency error must still fire. + var finder = CreateFinder(out var database, out _); + var collection = new Mock>>(); + var versionedData = new MongoDbData + { + Id = Guid.NewGuid(), + Version = 4, + Data = new TestProcessManagerData() + }; + + var indexedCollections = (System.Collections.Concurrent.ConcurrentDictionary)typeof(MongoDbProcessManagerFinder) + .GetField("_indexedCollections", BindingFlags.Instance | BindingFlags.NonPublic)! + .GetValue(finder)!; + indexedCollections.TryAdd(MongoDbProcessManagerFinder.SanitizeCollectionName(typeof(TestProcessManagerData).FullName!), true); + + database.Setup(db => db.GetCollection>( + MongoDbProcessManagerFinder.SanitizeCollectionName(typeof(TestProcessManagerData).FullName!), + It.IsAny())) + .Returns(collection.Object); + + collection.Setup(c => c.ReplaceOneAsync( + It.IsAny>>(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .ReturnsAsync(new ReplaceOneResult.Acknowledged(matchedCount: 0, modifiedCount: 0, upsertedId: null)); + + await Assert.ThrowsAsync( + () => finder.UpdateDataAsync(versionedData, CancellationToken.None)); + + // Version must NOT have been bumped on a failed update. + Assert.Equal(4L, versionedData.Version); + } + + private static MongoDbProcessManagerFinder CreateFinder( + out Mock database, + out Mock client) + { + database = new Mock(); + client = new Mock(); + client.Setup(c => c.GetDatabase("test-db", It.IsAny())) + .Returns(database.Object); + client.SetupGet(c => c.Settings).Returns(new MongoClientSettings()); + + return new MongoDbProcessManagerFinder( + client.Object, + new MongoDbPersistenceOptions { DatabaseName = "test-db" }, + Mock.Of>()); + } + + public sealed class TestProcessManagerData : IProcessManagerData + { + public Guid CorrelationId { get; set; } = Guid.NewGuid(); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbProcessManagerFinderSanitizerTests.cs b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbProcessManagerFinderSanitizerTests.cs new file mode 100644 index 000000000..56ca1b65c --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbProcessManagerFinderSanitizerTests.cs @@ -0,0 +1,19 @@ +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.MongoDb; + +[Collection("Mongo Bson serial")] +public class MongoDbProcessManagerFinderSanitizerTests +{ + [Theory] + [InlineData("Foo.Bar.Baz", "Foo.Bar.Baz")] // non-generic, no change + [InlineData("Foo+Nested", "Foo_Nested")] // nested type + [InlineData("Foo`1[[Bar.Baz, MyAssembly]]", "Foo_1__Bar.Baz_ MyAssembly__")] // generic (space inside brackets is not replaced) + [InlineData("Has,Comma", "Has_Comma")] // comma + public void SanitizeCollectionName_ReplacesIllegalChars(string raw, string expected) + { + var result = MongoDbProcessManagerFinder.SanitizeCollectionName(raw); + Assert.Equal(expected, result); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbProcessManagerFinderTests.cs b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbProcessManagerFinderTests.cs new file mode 100644 index 000000000..e884a52a2 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbProcessManagerFinderTests.cs @@ -0,0 +1,306 @@ +using System.Reflection; +using Microsoft.Extensions.Logging; +using MongoDB.Driver; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Exceptions; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.MongoDb; + +[Collection("Mongo Bson serial")] +public class MongoDbProcessManagerFinderTests +{ + [Fact] + public async Task UpdateDataAsync_RestoresOriginalVersion_WhenReplaceFails() + { + var finder = CreateFinder(out var database, out _); + var collection = new Mock>>(); + var versionedData = new MongoDbData + { + Id = Guid.NewGuid(), + Version = 7, + Data = new TestProcessManagerData() + }; + + var indexedCollections = (System.Collections.Concurrent.ConcurrentDictionary)typeof(MongoDbProcessManagerFinder) + .GetField("_indexedCollections", BindingFlags.Instance | BindingFlags.NonPublic)! + .GetValue(finder)!; + indexedCollections.TryAdd(MongoDbProcessManagerFinder.SanitizeCollectionName(typeof(TestProcessManagerData).FullName!), true); + + database.Setup(db => db.GetCollection>( + MongoDbProcessManagerFinder.SanitizeCollectionName(typeof(TestProcessManagerData).FullName!), + It.IsAny())) + .Returns(collection.Object); + + collection.Setup(c => c.ReplaceOneAsync( + It.IsAny>>(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .ThrowsAsync(new TestMongoException("boom")); + + await Assert.ThrowsAsync(() => finder.UpdateDataAsync(versionedData, CancellationToken.None)); + + Assert.Equal(7L, versionedData.Version); + } + + [Fact] + public async Task UpdateDataAsync_WhenCancelled_DoesNotBumpCallerVersion() + { + // The caller's version must only advance on a confirmed successful write. + // If ReplaceOneAsync is cancelled (OperationCanceledException), the caller's + // instance must still carry the original version so a retry targets the + // right row and does not see itself as ahead of the stored document. + var finder = CreateFinder(out var database, out _); + var collection = new Mock>>(); + var versionedData = new MongoDbData + { + Id = Guid.NewGuid(), + Version = 11, + Data = new TestProcessManagerData() + }; + + var indexedCollections = (System.Collections.Concurrent.ConcurrentDictionary)typeof(MongoDbProcessManagerFinder) + .GetField("_indexedCollections", BindingFlags.Instance | BindingFlags.NonPublic)! + .GetValue(finder)!; + indexedCollections.TryAdd(MongoDbProcessManagerFinder.SanitizeCollectionName(typeof(TestProcessManagerData).FullName!), true); + + database.Setup(db => db.GetCollection>( + MongoDbProcessManagerFinder.SanitizeCollectionName(typeof(TestProcessManagerData).FullName!), + It.IsAny())) + .Returns(collection.Object); + + collection.Setup(c => c.ReplaceOneAsync( + It.IsAny>>(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .ThrowsAsync(new OperationCanceledException()); + + await Assert.ThrowsAsync( + () => finder.UpdateDataAsync(versionedData, CancellationToken.None)); + + Assert.Equal(11L, versionedData.Version); + } + + [Fact] + public async Task UpdateDataAsync_OnSuccess_BumpsCallerVersion() + { + var finder = CreateFinder(out var database, out _); + var collection = new Mock>>(); + var versionedData = new MongoDbData + { + Id = Guid.NewGuid(), + Version = 4, + Data = new TestProcessManagerData() + }; + + var indexedCollections = (System.Collections.Concurrent.ConcurrentDictionary)typeof(MongoDbProcessManagerFinder) + .GetField("_indexedCollections", BindingFlags.Instance | BindingFlags.NonPublic)! + .GetValue(finder)!; + indexedCollections.TryAdd(MongoDbProcessManagerFinder.SanitizeCollectionName(typeof(TestProcessManagerData).FullName!), true); + + database.Setup(db => db.GetCollection>( + MongoDbProcessManagerFinder.SanitizeCollectionName(typeof(TestProcessManagerData).FullName!), + It.IsAny())) + .Returns(collection.Object); + + collection.Setup(c => c.ReplaceOneAsync( + It.IsAny>>(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .ReturnsAsync(new ReplaceOneResult.Acknowledged(matchedCount: 1, modifiedCount: 1, upsertedId: null)); + + await finder.UpdateDataAsync(versionedData, CancellationToken.None); + + Assert.Equal(5L, versionedData.Version); + } + + [Fact] + public async Task InsertDataAsync_ThrowsPersistenceException_WhenGenericMongoErrorOccurs() + { + // Generic MongoException (network failure, command error other than DuplicateKey, etc.) + // surfaces as PersistenceException — the caller cannot recover via re-find. + var finder = CreateFinder(out var database, out _); + var collection = new Mock>>(); + var data = new TestProcessManagerData(); + + var indexedCollections = (System.Collections.Concurrent.ConcurrentDictionary)typeof(MongoDbProcessManagerFinder) + .GetField("_indexedCollections", BindingFlags.Instance | BindingFlags.NonPublic)! + .GetValue(finder)!; + indexedCollections.TryAdd(MongoDbProcessManagerFinder.SanitizeCollectionName(typeof(TestProcessManagerData).FullName!), true); + + database.Setup(db => db.GetCollection>( + MongoDbProcessManagerFinder.SanitizeCollectionName(typeof(TestProcessManagerData).FullName!), + It.IsAny())) + .Returns(collection.Object); + + collection.Setup(c => c.InsertOneAsync( + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .ThrowsAsync(new TestMongoException("network failure")); + + await Assert.ThrowsAsync(() => finder.InsertDataAsync(data, CancellationToken.None)); + } + + [Fact] + public async Task InsertDataAsync_ThrowsConcurrencyException_WhenMongoWriteExceptionHasDuplicateKey() + { + // The unique CorrelationId index signals a concurrent first-message race for the + // same saga: the loser's InsertOne raises MongoWriteException with + // ServerErrorCategory.DuplicateKey. ProcessManagerProcessor's retry loop only + // recovers from ConcurrencyException, so this code path must be rethrown as one. + var finder = CreateFinder(out var database, out _); + var collection = new Mock>>(); + var data = new TestProcessManagerData(); + + var indexedCollections = (System.Collections.Concurrent.ConcurrentDictionary)typeof(MongoDbProcessManagerFinder) + .GetField("_indexedCollections", BindingFlags.Instance | BindingFlags.NonPublic)! + .GetValue(finder)!; + indexedCollections.TryAdd(MongoDbProcessManagerFinder.SanitizeCollectionName(typeof(TestProcessManagerData).FullName!), true); + + database.Setup(db => db.GetCollection>( + MongoDbProcessManagerFinder.SanitizeCollectionName(typeof(TestProcessManagerData).FullName!), + It.IsAny())) + .Returns(collection.Object); + + var connectionId = new MongoDB.Driver.Core.Connections.ConnectionId( + new MongoDB.Driver.Core.Servers.ServerId( + new MongoDB.Driver.Core.Clusters.ClusterId(), + new System.Net.DnsEndPoint("localhost", 27017))); + // WriteError's constructor is internal in MongoDB.Driver 2.23.x; reflect into it + // so the test doesn't depend on driver-internal accessibility decisions. The + // production code under test only reads WriteError.Category, so the rest of the + // properties stay at their default-constructed values. + var writeErrorCtor = typeof(WriteError).GetConstructors(BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public) + .First(c => + { + var ps = c.GetParameters(); + return ps.Length >= 1 && ps[0].ParameterType == typeof(ServerErrorCategory); + }); + var writeErrorArgs = writeErrorCtor.GetParameters().Select(p => p.ParameterType switch + { + _ when p.ParameterType == typeof(ServerErrorCategory) => ServerErrorCategory.DuplicateKey, + _ when p.ParameterType == typeof(int) => 11000, + _ when p.ParameterType == typeof(string) => "E11000 duplicate key error: Data.CorrelationId_1", + _ when p.ParameterType == typeof(MongoDB.Bson.BsonDocument) => new MongoDB.Bson.BsonDocument(), + _ => p.HasDefaultValue ? p.DefaultValue : null + }).ToArray(); + var writeError = (WriteError)writeErrorCtor.Invoke(writeErrorArgs); + var dupEx = new MongoWriteException(connectionId, writeError, writeConcernError: null, innerException: null); + + collection.Setup(c => c.InsertOneAsync( + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .ThrowsAsync(dupEx); + + var thrown = await Assert.ThrowsAsync( + () => finder.InsertDataAsync(data, CancellationToken.None)); + Assert.Same(dupEx, thrown.InnerException); + } + + [Fact] + public async Task InsertDataAsync_CreatesUniqueCorrelationIdIndex() + { + var finder = CreateFinder(out var database, out _); + var collection = new Mock>>(); + var indexManager = new Mock>>(); + var data = new TestProcessManagerData(); + CreateIndexModel>? capturedIndexModel = null; + + database.Setup(db => db.GetCollection>( + MongoDbProcessManagerFinder.SanitizeCollectionName(typeof(TestProcessManagerData).FullName!), + It.IsAny())) + .Returns(collection.Object); + + collection.SetupGet(c => c.Indexes) + .Returns(indexManager.Object); + + indexManager.Setup(m => m.CreateOneAsync( + It.IsAny>>(), + It.IsAny(), + It.IsAny())) + .Callback>, CreateOneIndexOptions, CancellationToken>( + (model, _, _) => capturedIndexModel = model) + .ReturnsAsync("Data.CorrelationId_1"); + + collection.Setup(c => c.InsertOneAsync( + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .Returns(Task.CompletedTask); + + await finder.InsertDataAsync(data, CancellationToken.None); + + Assert.NotNull(capturedIndexModel); + Assert.True(capturedIndexModel!.Options?.Unique); + } + + [Fact] + public async Task InsertDataAsync_UsesFullyQualifiedTypeNameForCollection() + { + var finder = CreateFinder(out var database, out _); + var collection = new Mock>>(); + var data = new TestProcessManagerData(); + var expectedName = MongoDbProcessManagerFinder.SanitizeCollectionName(typeof(TestProcessManagerData).FullName!); + + var indexedCollections = (System.Collections.Concurrent.ConcurrentDictionary)typeof(MongoDbProcessManagerFinder) + .GetField("_indexedCollections", BindingFlags.Instance | BindingFlags.NonPublic)! + .GetValue(finder)!; + indexedCollections.TryAdd(expectedName, true); + + // Short-name-only Setup must NOT match — the finder must ask for the full name. + database.Setup(db => db.GetCollection>( + nameof(TestProcessManagerData), + It.IsAny())) + .Throws(new InvalidOperationException("collection resolution used short name")); + + string? requestedName = null; + database.Setup(db => db.GetCollection>( + It.IsAny(), + It.IsAny())) + .Callback((name, _) => requestedName = name) + .Returns(collection.Object); + + collection.Setup(c => c.InsertOneAsync( + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .Returns(Task.CompletedTask); + + await finder.InsertDataAsync(data, CancellationToken.None); + + Assert.Equal(expectedName, requestedName); + Assert.Contains('.', requestedName!); + } + + private static MongoDbProcessManagerFinder CreateFinder( + out Mock database, + out Mock client) + { + database = new Mock(); + client = new Mock(); + client.Setup(c => c.GetDatabase("test-db", It.IsAny())) + .Returns(database.Object); + // IMongoClient.Settings is read in the constructor to detect WriteConcern.Unacknowledged. + // Return a default MongoClientSettings (WriteConcern.Acknowledged) so the mock doesn't NRE. + client.SetupGet(c => c.Settings).Returns(new MongoClientSettings()); + + return new MongoDbProcessManagerFinder( + client.Object, + new MongoDbPersistenceOptions { DatabaseName = "test-db" }, + Mock.Of>()); + } + + private sealed class TestMongoException(string message) : MongoException(message); + + public sealed class TestProcessManagerData : IProcessManagerData + { + public Guid CorrelationId { get; set; } = Guid.NewGuid(); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbTimeoutStoreCancelOrphanTests.cs b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbTimeoutStoreCancelOrphanTests.cs new file mode 100644 index 000000000..3f82bfc79 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbTimeoutStoreCancelOrphanTests.cs @@ -0,0 +1,172 @@ +using Microsoft.Extensions.Logging; +using MongoDB.Driver; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.MongoDb; + +[Collection("Mongo Bson serial")] +public class MongoDbTimeoutStoreCancelOrphanTests +{ + static MongoDbTimeoutStoreCancelOrphanTests() + { + MongoDbPersistenceExtensions.EnsureGuidSerializerRegistered(); + } + + private static (MongoDbTimeoutStore Store, Mock> Collection, Mock> Logger) + BuildStore() + { + var indexes = new Mock>(); + indexes.Setup(m => m.CreateManyAsync(It.IsAny>>(), It.IsAny())) + .ReturnsAsync(["ok"]); + indexes.Setup(m => m.DropOneAsync(It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var collection = new Mock>(); + collection.SetupGet(c => c.Indexes).Returns(indexes.Object); + + // Candidate-id FindAsync returns one id so the read-back path fires. + var oneIdCursor = new Mock>(); + var seq = oneIdCursor.SetupSequence(c => c.MoveNextAsync(It.IsAny())); + seq.ReturnsAsync(true).ReturnsAsync(false); + oneIdCursor.SetupGet(c => c.Current).Returns([Guid.NewGuid()]); + collection.Setup(c => c.FindAsync( + It.IsAny>(), + It.IsAny>(), + It.IsAny())) + .ReturnsAsync(oneIdCursor.Object); + + var database = new Mock(); + database.Setup(d => d.GetCollection("Timeouts", null)).Returns(collection.Object); + + var client = new Mock(); + client.SetupGet(c => c.Settings).Returns(new MongoClientSettings { WriteConcern = WriteConcern.W1 }); + client.Setup(c => c.GetDatabase("test", null)).Returns(database.Object); + // Force unsessioned path for simplicity. + client.Setup(c => c.StartSessionAsync(It.IsAny(), It.IsAny())) + .ThrowsAsync(new NotSupportedException("standalone")); + + var logger = new Mock>(); + logger.Setup(l => l.IsEnabled(It.IsAny())).Returns(true); + + var store = new MongoDbTimeoutStore( + client.Object, + new MongoDbPersistenceOptions { DatabaseName = "test" }, + logger.Object); + + return (store, collection, logger); + } + + [Fact] + public async Task GetTimeoutsBatch_CancelAfterUpdateMany_ReleasesLeaseBestEffort() + { + var (store, collection, _) = BuildStore(); + + var updateManyCalls = 0; + collection.Setup(c => c.UpdateManyAsync( + It.IsAny>(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .Callback, UpdateDefinition, UpdateOptions, CancellationToken>( + (filter, _, _, ct) => + { + updateManyCalls++; + if (updateManyCalls == 2) + { + // Release call must use CancellationToken.None so it isn't cancelled. + Assert.Equal(CancellationToken.None, ct); + } + }) + .ReturnsAsync(new UpdateResult.Acknowledged(0, 0, null)); + + // Wire FindAsync (the read-back) to throw OCE. + collection.Setup(c => c.FindAsync( + It.IsAny>(), + It.IsAny>(), + It.IsAny())) + .ThrowsAsync(new OperationCanceledException("simulated")); + + await Assert.ThrowsAsync(() => store.GetTimeoutsBatchAsync()); + + Assert.Equal(2, updateManyCalls); // claim + release + } + + [Fact] + public async Task GetTimeoutsBatch_CancelDuringUpdateMany_AttemptsBestEffortRelease() + { + // Cancellation observed by the claim's await may have arrived either before or after + // the server actually committed the lock-update — the caller cannot tell. The store + // marks intent to claim before the await and always runs a best-effort release on + // throw; the release filter is gated on LockedBy == sessionId so a release call for + // a claim that never committed is a server-side no-op. + var (store, collection, _) = BuildStore(); + + var updateManyCalls = 0; + collection.Setup(c => c.UpdateManyAsync( + It.IsAny>(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .Returns, UpdateDefinition, UpdateOptions, CancellationToken>( + (_, _, _, ct) => + { + updateManyCalls++; + if (updateManyCalls == 1) + { + throw new OperationCanceledException("simulated"); + } + // Release call must use CancellationToken.None so cancellation can't preempt cleanup. + Assert.Equal(CancellationToken.None, ct); + return Task.FromResult(new UpdateResult.Acknowledged(0, 0, null)); + }); + + await Assert.ThrowsAsync(() => store.GetTimeoutsBatchAsync()); + + Assert.Equal(2, updateManyCalls); // failed claim + best-effort release + } + + [Fact] + public async Task GetTimeoutsBatch_CancelDuringBestEffortRelease_SwallowsAndPropagatesOriginalOce() + { + var (store, collection, logger) = BuildStore(); + + var updateManyCalls = 0; + collection.Setup(c => c.UpdateManyAsync( + It.IsAny>(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .Returns, UpdateDefinition, UpdateOptions, CancellationToken>( + (_, _, _, _) => + { + updateManyCalls++; + if (updateManyCalls == 1) + { + return Task.FromResult(new UpdateResult.Acknowledged(0, 0, null)); + } + // Release fails too — should be swallowed and logged. + throw new MongoException("simulated release failure"); + }); + + collection.Setup(c => c.FindAsync( + It.IsAny>(), + It.IsAny>(), + It.IsAny())) + .ThrowsAsync(new OperationCanceledException("simulated")); + + await Assert.ThrowsAsync(() => store.GetTimeoutsBatchAsync()); + + Assert.Equal(2, updateManyCalls); + // Verify a Warning was logged (the release failure). + logger.Verify(l => l.Log( + LogLevel.Warning, + It.IsAny(), + It.IsAny(), + It.IsAny(), + It.IsAny>()), + Times.Once); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbTimeoutStoreConstructorTests.cs b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbTimeoutStoreConstructorTests.cs new file mode 100644 index 000000000..ed4fdfa6e --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbTimeoutStoreConstructorTests.cs @@ -0,0 +1,45 @@ +using Microsoft.Extensions.Logging.Abstractions; +using MongoDB.Driver; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.MongoDb; + +[Collection("Mongo Bson serial")] +public class MongoDbTimeoutStoreConstructorTests +{ + [Fact] + public void Constructor_RejectsUnacknowledgedWriteConcern() + { + var settings = MongoClientSettings.FromConnectionString("mongodb://localhost:27017"); + settings.WriteConcern = WriteConcern.Unacknowledged; + var client = new MongoClient(settings); + + var options = new MongoDbPersistenceOptions + { + ConnectionString = "mongodb://localhost:27017", + DatabaseName = "tests", + }; + + var ex = Assert.Throws(() => + new MongoDbTimeoutStore(client, options, NullLogger.Instance)); + Assert.Contains("acknowledged WriteConcern", ex.Message); + } + + [Fact] + public void Constructor_AcceptsAcknowledgedWriteConcern() + { + var settings = MongoClientSettings.FromConnectionString("mongodb://localhost:27017"); + settings.WriteConcern = WriteConcern.Acknowledged; + var client = new MongoClient(settings); + + var options = new MongoDbPersistenceOptions + { + ConnectionString = "mongodb://localhost:27017", + DatabaseName = "tests", + }; + + // Should not throw — construction must succeed for acknowledged writes. + _ = new MongoDbTimeoutStore(client, options, NullLogger.Instance); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbTimeoutStoreGuidEmptyTests.cs b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbTimeoutStoreGuidEmptyTests.cs new file mode 100644 index 000000000..86d011a1d --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbTimeoutStoreGuidEmptyTests.cs @@ -0,0 +1,64 @@ +using System; +using System.Threading; +using System.Threading.Tasks; +using Microsoft.Extensions.Logging.Abstractions; +using MongoDB.Driver; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.MongoDb; + +[Collection("Mongo Bson serial")] +public class MongoDbTimeoutStoreGuidEmptyTests +{ + private static MongoDbTimeoutStore CreateStore() + { + var indexes = new Mock>(); + indexes.Setup(m => m.CreateManyAsync( + It.IsAny>>(), + It.IsAny())) + .ReturnsAsync(["ok"]); + indexes.Setup(m => m.DropOneAsync(It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + var collection = new Mock>(); + collection.SetupGet(c => c.Indexes).Returns(indexes.Object); + + var database = new Mock(); + database.Setup(d => d.GetCollection("Timeouts", null)).Returns(collection.Object); + + var client = new Mock(); + client.SetupGet(c => c.Settings).Returns(new MongoClientSettings { WriteConcern = WriteConcern.W1 }); + client.Setup(c => c.GetDatabase("test", null)).Returns(database.Object); + + return new MongoDbTimeoutStore( + client.Object, + new MongoDbPersistenceOptions { DatabaseName = "test" }, + NullLogger.Instance); + } + + [Fact] + public async Task InsertTimeoutAsync_NullTimeoutData_ThrowsArgumentNullException() + { + var store = CreateStore(); + + var ex = await Assert.ThrowsAsync(() => + store.InsertTimeoutAsync(null!, CancellationToken.None)); + + Assert.Equal("timeoutData", ex.ParamName); + } + + [Fact] + public async Task InsertTimeoutAsync_GuidEmptyId_ThrowsArgumentException() + { + var store = CreateStore(); + + var ex = await Assert.ThrowsAsync(() => + store.InsertTimeoutAsync( + new TimeoutData { Id = Guid.Empty, Time = DateTime.UtcNow.AddMinutes(1) }, + CancellationToken.None)); + + Assert.Equal("timeoutData", ex.ParamName); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbTimeoutStoreIndexCacheTests.cs b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbTimeoutStoreIndexCacheTests.cs new file mode 100644 index 000000000..baf657f1a --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbTimeoutStoreIndexCacheTests.cs @@ -0,0 +1,68 @@ +using Microsoft.Extensions.Logging.Abstractions; +using MongoDB.Driver; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.MongoDb; + +/// +/// Verifies the per-instance index cache: after a successful first call, further +/// Insert / Get / Remove / Release / Reap operations skip both DropOneAsync and +/// CreateManyAsync round-trips. Mirrors MongoDbAggregatorPersistorIndexCacheTests +/// and the saga finder's _indexedCollections semantics. +/// +[Collection("Mongo Bson serial")] +public class MongoDbTimeoutStoreIndexCacheTests +{ + [Fact] + public async Task EnsureTimeoutIndexAsync_AfterFirstCall_ShortCircuits() + { + // Drive 8 concurrent InsertTimeoutAsync; CreateManyAsync should fire exactly once. + var indexManager = new Mock>(); + var createCount = 0; + var dropCount = 0; + indexManager + .Setup(m => m.CreateManyAsync( + It.IsAny>>(), + It.IsAny())) + .Returns(() => { Interlocked.Increment(ref createCount); return Task.FromResult(new List().AsEnumerable()); }); + indexManager + .Setup(m => m.DropOneAsync(It.IsAny(), It.IsAny())) + .Returns(() => { Interlocked.Increment(ref dropCount); return Task.CompletedTask; }); + + var collection = new Mock>(); + collection.SetupGet(c => c.Indexes).Returns(indexManager.Object); + collection + .Setup(c => c.InsertOneAsync(It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var database = new Mock(); + database.Setup(d => d.GetCollection(It.IsAny(), It.IsAny())) + .Returns(collection.Object); + + var settings = MongoClientSettings.FromConnectionString("mongodb://localhost:27017"); + settings.WriteConcern = WriteConcern.Acknowledged; + var client = new Mock(); + client.SetupGet(c => c.Settings).Returns(settings); + client.Setup(c => c.GetDatabase(It.IsAny(), It.IsAny())).Returns(database.Object); + + var options = new MongoDbPersistenceOptions + { + ConnectionString = "mongodb://localhost:27017", + DatabaseName = "tests", + TimeoutBatchSize = 100, + TimeoutLockLeaseDuration = TimeSpan.FromMinutes(1), + }; + var store = new MongoDbTimeoutStore(client.Object, options, NullLogger.Instance); + + var tasks = Enumerable.Range(0, 8) + .Select(_ => store.InsertTimeoutAsync(new TimeoutData { Id = Guid.NewGuid(), Time = DateTimeOffset.UtcNow })) + .ToArray(); + await Task.WhenAll(tasks); + + Assert.Equal(1, createCount); + Assert.Equal(1, dropCount); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbTimeoutStoreIndexMigrationTests.cs b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbTimeoutStoreIndexMigrationTests.cs new file mode 100644 index 000000000..4a09d3791 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbTimeoutStoreIndexMigrationTests.cs @@ -0,0 +1,188 @@ +using Microsoft.Extensions.Logging.Abstractions; +using MongoDB.Bson; +using MongoDB.Bson.Serialization; +using MongoDB.Driver; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Exceptions; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.MongoDb; + +[Collection("Mongo Bson serial")] +public class MongoDbTimeoutStoreIndexMigrationTests +{ + static MongoDbTimeoutStoreIndexMigrationTests() + { + MongoDbPersistenceExtensions.EnsureGuidSerializerRegistered(); + } + + private static string RenderKeys(IndexKeysDefinition keys) => + keys.Render(new RenderArgs( + BsonSerializer.LookupSerializer(), + BsonSerializer.SerializerRegistry)).ToJson(); + + private static (MongoDbTimeoutStore Store, Mock> Indexes) + BuildStore( + Action>>? indexSetup = null) + { + var indexes = new Mock>(); + + // Defaults (applied before indexSetup so callers can override them). + indexes.Setup(m => m.CreateManyAsync( + It.IsAny>>(), + It.IsAny())) + .ReturnsAsync(["ok"]); + indexes.Setup(m => m.DropOneAsync(It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + // Test-specific overrides applied after defaults. + indexSetup?.Invoke(indexes); + + var collection = new Mock>(); + collection.SetupGet(c => c.Indexes).Returns(indexes.Object); + collection.Setup(c => c.InsertOneAsync( + It.IsAny(), + It.IsAny(), + It.IsAny())) + .Returns(Task.CompletedTask); + + var database = new Mock(); + database.Setup(d => d.GetCollection("Timeouts", null)) + .Returns(collection.Object); + + var client = new Mock(); + client.SetupGet(c => c.Settings).Returns(new MongoClientSettings { WriteConcern = WriteConcern.W1 }); + client.Setup(c => c.GetDatabase("test", null)).Returns(database.Object); + + var store = new MongoDbTimeoutStore( + client.Object, + new MongoDbPersistenceOptions { DatabaseName = "test" }, + NullLogger.Instance); + + return (store, indexes); + } + + [Fact] + public async Task EnsureTimeoutIndex_CreatesTimeLockedCompoundAndLockExpiresAtSingle() + { + // A single (Time, Locked, LockExpiresAt) compound is rejected by real MongoDB + // with code 171 ("cannot index parallel arrays") because the C# driver serialises + // DateTimeOffset as a 2-element BSON array, and a compound spanning two array-typed + // fields trips that rule. The same applies to a hypothetical (Time, LockExpiresAt) + // — both fields are DateTimeOffset. + // + // The store therefore creates two indexes: (Time, Locked) — one array + one + // scalar, OK — for the Locked == false branch of the due filter (with Time as + // the sort prefix), plus a single-field (LockExpiresAt) index for the + // LockExpiresAt <= utcNow branch. Single array-valued fields are fine; only + // multi-array compounds are rejected. + IEnumerable>? captured = null; + var (store, _) = BuildStore(indexes => + { + indexes.Setup(m => m.CreateManyAsync( + It.IsAny>>(), + It.IsAny())) + .Callback>, CancellationToken>((m, _) => captured = [.. m]) + .ReturnsAsync(["ok"]); + }); + + await store.InsertTimeoutAsync(new TimeoutData + { + Id = Guid.NewGuid(), + Destination = "dest", + ProcessManagerId = Guid.NewGuid(), + Time = DateTimeOffset.UtcNow, + Headers = new Dictionary(StringComparer.Ordinal), + }); + + Assert.NotNull(captured); + var keysJsonList = captured!.Select(m => RenderKeys(m.Keys)).ToList(); + + // (Time, Locked) — covers the Locked == false branch of the due filter. + Assert.Contains(keysJsonList, k => + k.Contains("\"Time\" : 1") && k.Contains("\"Locked\" : 1") && !k.Contains("\"LockExpiresAt\"")); + + // Single-field (LockExpiresAt) — covers the LockExpiresAt <= utcNow branch. + Assert.Contains(keysJsonList, k => + k.Contains("\"LockExpiresAt\" : 1") && !k.Contains("\"Time\"") && !k.Contains("\"Locked\" :")); + + // No multi-array compound — that's the parallel-arrays trap. + Assert.DoesNotContain(keysJsonList, k => + k.Contains("\"Time\" : 1") && k.Contains("\"LockExpiresAt\" : 1")); + } + + [Fact] + public async Task EnsureTimeoutIndex_DropsLegacyLockedTimeIndex() + { + var (store, indexes) = BuildStore(); + + await store.InsertTimeoutAsync(new TimeoutData + { + Id = Guid.NewGuid(), + Destination = "dest", + ProcessManagerId = Guid.NewGuid(), + Time = DateTimeOffset.UtcNow, + Headers = new Dictionary(StringComparer.Ordinal), + }); + + indexes.Verify( + m => m.DropOneAsync("Locked_1_Time_1", It.IsAny()), + Times.Once); + } + + [Fact] + public async Task EnsureTimeoutIndex_SwallowsIndexNotFoundOnDrop() + { + var (store, _) = BuildStore(indexes => + { + // Code 27 = IndexNotFound. + var connectionId = new MongoDB.Driver.Core.Connections.ConnectionId( + new MongoDB.Driver.Core.Servers.ServerId( + new MongoDB.Driver.Core.Clusters.ClusterId(), + new System.Net.DnsEndPoint("localhost", 27017))); + var result = new BsonDocument { ["ok"] = 0, ["code"] = 27, ["errmsg"] = "index not found" }; + var command = new BsonDocument { ["dropIndexes"] = "Timeouts" }; + indexes.Setup(m => m.DropOneAsync("Locked_1_Time_1", It.IsAny())) + .ThrowsAsync(new MongoCommandException(connectionId, "index not found", command, result)); + }); + + // Should NOT throw. + await store.InsertTimeoutAsync(new TimeoutData + { + Id = Guid.NewGuid(), + Destination = "dest", + ProcessManagerId = Guid.NewGuid(), + Time = DateTimeOffset.UtcNow, + Headers = new Dictionary(StringComparer.Ordinal), + }); + } + + [Fact] + public async Task EnsureTimeoutIndex_PropagatesOtherDropErrors() + { + var (store, _) = BuildStore(indexes => + { + // Code 13 = Unauthorized. + var connectionId = new MongoDB.Driver.Core.Connections.ConnectionId( + new MongoDB.Driver.Core.Servers.ServerId( + new MongoDB.Driver.Core.Clusters.ClusterId(), + new System.Net.DnsEndPoint("localhost", 27017))); + var result = new BsonDocument { ["ok"] = 0, ["code"] = 13, ["errmsg"] = "unauthorized" }; + var command = new BsonDocument { ["dropIndexes"] = "Timeouts" }; + indexes.Setup(m => m.DropOneAsync("Locked_1_Time_1", It.IsAny())) + .ThrowsAsync(new MongoCommandException(connectionId, "unauthorized", command, result)); + }); + + await Assert.ThrowsAsync(() => + store.InsertTimeoutAsync(new TimeoutData + { + Id = Guid.NewGuid(), + Destination = "dest", + ProcessManagerId = Guid.NewGuid(), + Time = DateTimeOffset.UtcNow, + Headers = new Dictionary(StringComparer.Ordinal), + })); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbTimeoutStoreLeaseFilterTests.cs b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbTimeoutStoreLeaseFilterTests.cs new file mode 100644 index 000000000..95f5e032c --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbTimeoutStoreLeaseFilterTests.cs @@ -0,0 +1,172 @@ +using Microsoft.Extensions.Logging.Abstractions; +using MongoDB.Bson; +using MongoDB.Bson.Serialization; +using MongoDB.Driver; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.MongoDb; + +[Collection("Mongo Bson serial")] +public class MongoDbTimeoutStoreLeaseFilterTests +{ + static MongoDbTimeoutStoreLeaseFilterTests() + { + // BSON Guid serializer must be registered before any filter rendering. + // Matches the static-cctor pattern in MongoDbTimeoutStoreTests.cs. + MongoDbPersistenceExtensions.EnsureGuidSerializerRegistered(); + } + + private static (MongoDbTimeoutStore Store, Mock> Collection) + BuildStoreCapturingFilters() + { + var indexes = new Mock>(); + indexes.Setup(m => m.CreateManyAsync( + It.IsAny>>(), + It.IsAny())) + .ReturnsAsync(["ok"]); + indexes.Setup(m => m.DropOneAsync(It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var collection = new Mock>(); + collection.SetupGet(c => c.Indexes).Returns(indexes.Object); + + // Default benign responses so the methods don't throw before exercising the filter. + collection.Setup(c => c.DeleteOneAsync(It.IsAny>(), It.IsAny())) + .ReturnsAsync(new DeleteResult.Acknowledged(1)); + collection.Setup(c => c.UpdateOneAsync( + It.IsAny>(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .ReturnsAsync(new UpdateResult.Acknowledged(1, 1, null)); + + var database = new Mock(); + database.Setup(d => d.GetCollection("Timeouts", null)) + .Returns(collection.Object); + + var client = new Mock(); + client.SetupGet(c => c.Settings).Returns(new MongoClientSettings { WriteConcern = WriteConcern.W1 }); + client.Setup(c => c.GetDatabase("test", null)).Returns(database.Object); + // Deterministically take the unsessioned path; standalone/older servers don't support + // sessions, and we don't need session plumbing to test filter predicates. + client.Setup(c => c.StartSessionAsync( + It.IsAny(), + It.IsAny())) + .ThrowsAsync(new NotSupportedException("test")); + + var store = new MongoDbTimeoutStore( + client.Object, + new MongoDbPersistenceOptions { DatabaseName = "test" }, + NullLogger.Instance); + + return (store, collection); + } + + private static string Render(FilterDefinition filter) => + filter.Render(new RenderArgs( + BsonSerializer.LookupSerializer(), + BsonSerializer.SerializerRegistry)).ToJson(); + + [Fact] + public async Task RemoveDispatchedTimeout_FilterIncludesLockExpiresAtPredicate() + { + var (store, collection) = BuildStoreCapturingFilters(); + FilterDefinition? captured = null; + collection.Setup(c => c.DeleteOneAsync(It.IsAny>(), It.IsAny())) + .Callback, CancellationToken>((f, _) => captured = f) + .ReturnsAsync(new DeleteResult.Acknowledged(1)); + + var owner = Guid.NewGuid(); + await store.RemoveDispatchedTimeoutAsync(Guid.NewGuid(), owner); + + Assert.NotNull(captured); + var json = Render(captured!); + // $$NOW-anchored predicate: { "$expr": { "$gt": [ "$LockExpiresAt", "$$NOW" ] } } + Assert.Contains("\"$expr\"", json); + Assert.Contains("\"$gt\"", json); + Assert.Contains("\"$LockExpiresAt\"", json); + Assert.Contains("\"$$NOW\"", json); + } + + [Fact] + public async Task ReleaseDispatchedTimeout_FilterIncludesLockExpiresAtPredicate() + { + var (store, collection) = BuildStoreCapturingFilters(); + FilterDefinition? captured = null; + collection.Setup(c => c.UpdateOneAsync( + It.IsAny>(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .Callback, UpdateDefinition, UpdateOptions, CancellationToken>( + (f, _, _, _) => captured = f) + .ReturnsAsync(new UpdateResult.Acknowledged(1, 1, null)); + + var owner = Guid.NewGuid(); + await store.ReleaseDispatchedTimeoutAsync(Guid.NewGuid(), owner); + + Assert.NotNull(captured); + var json = Render(captured!); + // $$NOW-anchored predicate: { "$expr": { "$gt": [ "$LockExpiresAt", "$$NOW" ] } } + Assert.Contains("\"$expr\"", json); + Assert.Contains("\"$gt\"", json); + Assert.Contains("\"$LockExpiresAt\"", json); + Assert.Contains("\"$$NOW\"", json); + } + + [Fact] + public async Task GetTimeoutsBatch_OwnedReadBackFilter_IncludesLockExpiresAtPredicate() + { + // The owned read-back is the FindAsync-after-UpdateMany inside GetTimeoutsBatchAsync. + // We need the candidate-id query to return at least one id so the read-back path fires. + var (store, collection) = BuildStoreCapturingFilters(); + + collection.Setup(c => c.UpdateManyAsync( + It.IsAny>(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .ReturnsAsync(new UpdateResult.Acknowledged(0, 0, null)); + + FilterDefinition? readBackFilter = null; + + // Candidate-id FindAsync returns one id so the read-back path fires. + var oneIdCursor = new Mock>(); + oneIdCursor.SetupSequence(c => c.MoveNextAsync(It.IsAny())) + .ReturnsAsync(true) + .ReturnsAsync(false); + IEnumerable oneId = [Guid.NewGuid()]; + oneIdCursor.SetupGet(c => c.Current).Returns(oneId); + + collection.Setup(c => c.FindAsync( + It.IsAny>(), + It.IsAny>(), + It.IsAny())) + .ReturnsAsync(oneIdCursor.Object); + + // Read-back FindAsync — capture filter, return empty. + var emptyTimeoutCursor = new Mock>(); + emptyTimeoutCursor.Setup(c => c.MoveNextAsync(It.IsAny())).ReturnsAsync(false); + emptyTimeoutCursor.SetupGet(c => c.Current).Returns([]); + collection.Setup(c => c.FindAsync( + It.IsAny>(), + It.IsAny>(), + It.IsAny())) + .Callback, FindOptions, CancellationToken>( + (f, _, _) => readBackFilter = f) + .ReturnsAsync(emptyTimeoutCursor.Object); + + await store.GetTimeoutsBatchAsync(); + + Assert.NotNull(readBackFilter); + var json = Render(readBackFilter!); + // $$NOW-anchored predicate: { "$expr": { "$gt": [ "$LockExpiresAt", "$$NOW" ] } } + Assert.Contains("\"$expr\"", json); + Assert.Contains("\"$gt\"", json); + Assert.Contains("\"$LockExpiresAt\"", json); + Assert.Contains("\"$$NOW\"", json); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbTimeoutStoreSessionFallbackTests.cs b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbTimeoutStoreSessionFallbackTests.cs new file mode 100644 index 000000000..fc0af2193 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbTimeoutStoreSessionFallbackTests.cs @@ -0,0 +1,93 @@ +using Microsoft.Extensions.Logging; +using MongoDB.Driver; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.MongoDb; + +[Collection("Mongo Bson serial")] +public class MongoDbTimeoutStoreSessionFallbackTests +{ + static MongoDbTimeoutStoreSessionFallbackTests() + { + MongoDbPersistenceExtensions.EnsureGuidSerializerRegistered(); + } + + [Fact] + public async Task GetTimeoutsBatch_StartSessionThrowsMongoConfiguration_FallsBackAndLogs() + { + // Logger-capture pattern matching project canon: Mock> + IsEnabled(true) + + // InvocationAction + DynamicInvoke. + var logEntries = new List<(LogLevel Level, string Message, Exception? Exception)>(); + var logger = new Mock>(); + logger.Setup(l => l.IsEnabled(It.IsAny())).Returns(true); + logger.Setup(l => l.Log( + It.IsAny(), + It.IsAny(), + It.IsAny(), + It.IsAny(), + It.IsAny>())) + .Callback(new InvocationAction(invocation => + { + var level = (LogLevel)invocation.Arguments[0]; + var state = invocation.Arguments[2]; + var exception = (Exception?)invocation.Arguments[3]; + var formatter = (Delegate)invocation.Arguments[4]; + var message = (string)formatter.DynamicInvoke(state, exception)!; + logEntries.Add((level, message, exception)); + })); + + var indexes = new Mock>(); + indexes.Setup(m => m.CreateManyAsync(It.IsAny>>(), It.IsAny())) + .ReturnsAsync(["ok"]); + indexes.Setup(m => m.DropOneAsync(It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var collection = new Mock>(); + collection.SetupGet(c => c.Indexes).Returns(indexes.Object); + + // UpdateMany without session (the fallback path) is exercised — set it up to + // succeed with zero matches so the FindAsync candidate query also fires. + collection.Setup(c => c.UpdateManyAsync( + It.IsAny>(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .ReturnsAsync(new UpdateResult.Acknowledged(0, 0, null)); + + var emptyGuidCursor = new Mock>(); + emptyGuidCursor.Setup(c => c.MoveNextAsync(It.IsAny())).ReturnsAsync(false); + emptyGuidCursor.SetupGet(c => c.Current).Returns([]); + collection.Setup(c => c.FindAsync( + It.IsAny>(), + It.IsAny>(), + It.IsAny())) + .ReturnsAsync(emptyGuidCursor.Object); + + var database = new Mock(); + database.Setup(d => d.GetCollection("Timeouts", null)).Returns(collection.Object); + + var client = new Mock(); + client.SetupGet(c => c.Settings).Returns(new MongoClientSettings { WriteConcern = WriteConcern.W1 }); + client.Setup(c => c.GetDatabase("test", null)).Returns(database.Object); + // Throw a non-NotSupportedException MongoException to verify the broadened fallback. + client.Setup(c => c.StartSessionAsync(It.IsAny(), It.IsAny())) + .ThrowsAsync(new MongoConfigurationException("test cluster is misconfigured")); + + var store = new MongoDbTimeoutStore( + client.Object, + new MongoDbPersistenceOptions { DatabaseName = "test" }, + logger.Object); + + // Should not throw — falls through to the unsessioned UpdateMany/FindAsync path. + var batch = await store.GetTimeoutsBatchAsync(); + + Assert.Empty(batch.DueTimeouts); + Assert.Contains(logEntries, e => + e.Level == LogLevel.Warning && + e.Message.Contains("session", StringComparison.OrdinalIgnoreCase) && + e.Exception is MongoConfigurationException); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbTimeoutStoreSortTieBreakerTests.cs b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbTimeoutStoreSortTieBreakerTests.cs new file mode 100644 index 000000000..f77ea57b2 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbTimeoutStoreSortTieBreakerTests.cs @@ -0,0 +1,70 @@ +using Microsoft.Extensions.Logging.Abstractions; +using MongoDB.Bson; +using MongoDB.Bson.Serialization; +using MongoDB.Driver; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.MongoDb; + +[Collection("Mongo Bson serial")] +public class MongoDbTimeoutStoreSortTieBreakerTests +{ + static MongoDbTimeoutStoreSortTieBreakerTests() + { + MongoDbPersistenceExtensions.EnsureGuidSerializerRegistered(); + } + + [Fact] + public async Task GetTimeoutsBatch_CandidateSort_IncludesIdTieBreaker() + { + FindOptions? capturedOptions = null; + + var indexes = new Mock>(); + indexes.Setup(m => m.CreateManyAsync(It.IsAny>>(), It.IsAny())) + .ReturnsAsync(["ok"]); + indexes.Setup(m => m.DropOneAsync(It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var collection = new Mock>(); + collection.SetupGet(c => c.Indexes).Returns(indexes.Object); + + var emptyCursor = new Mock>(); + emptyCursor.Setup(c => c.MoveNextAsync(It.IsAny())).ReturnsAsync(false); + emptyCursor.SetupGet(c => c.Current).Returns([]); + collection.Setup(c => c.FindAsync( + It.IsAny>(), + It.IsAny>(), + It.IsAny())) + .Callback, FindOptions, CancellationToken>( + (_, opts, _) => capturedOptions = opts) + .ReturnsAsync(emptyCursor.Object); + + var database = new Mock(); + database.Setup(d => d.GetCollection("Timeouts", null)).Returns(collection.Object); + + var client = new Mock(); + client.SetupGet(c => c.Settings).Returns(new MongoClientSettings { WriteConcern = WriteConcern.W1 }); + client.Setup(c => c.GetDatabase("test", null)).Returns(database.Object); + // No session — keeps the test simple; the sort shape is the same with or without. + client.Setup(c => c.StartSessionAsync(It.IsAny(), It.IsAny())) + .ThrowsAsync(new NotSupportedException("test")); + + var store = new MongoDbTimeoutStore( + client.Object, + new MongoDbPersistenceOptions { DatabaseName = "test" }, + NullLogger.Instance); + + await store.GetTimeoutsBatchAsync(); + + Assert.NotNull(capturedOptions); + Assert.NotNull(capturedOptions!.Sort); + var sortJson = capturedOptions.Sort.Render(new RenderArgs( + BsonSerializer.LookupSerializer(), + BsonSerializer.SerializerRegistry)).ToJson(); + Assert.Contains("\"Time\" : 1", sortJson); + Assert.Contains("\"_id\" : 1", sortJson); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbTimeoutStoreTests.cs b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbTimeoutStoreTests.cs new file mode 100644 index 000000000..b732b818e --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/MongoDb/MongoDbTimeoutStoreTests.cs @@ -0,0 +1,593 @@ +using System.Net; +using Microsoft.Extensions.Logging.Abstractions; +using Microsoft.Extensions.Time.Testing; +using MongoDB.Bson; +using MongoDB.Bson.Serialization; +using MongoDB.Driver; +using MongoDB.Driver.Core.Clusters; +using MongoDB.Driver.Core.Configuration; +using MongoDB.Driver.Core.Connections; +using MongoDB.Driver.Core.Servers; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Exceptions; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence.MongoDb; + +[Collection("Mongo Bson serial")] +public class MongoDbTimeoutStoreTests +{ + static MongoDbTimeoutStoreTests() + { + // Several tests in this class call BsonSerializer.LookupSerializer() + // and render filters that contain Guid fields BEFORE constructing a + // MongoDbTimeoutStore (which would otherwise trigger registration via its + // static cctor). When the test class runs in isolation the serializer is + // not yet registered and Guid filter rendering fails. xUnit class-level + // ordering is non-deterministic, so the failures showed up as "passes when + // run alone, fails when run alongside others". Force registration here so + // every test in this class sees a consistent BSON state. + MongoDbPersistenceExtensions.EnsureGuidSerializerRegistered(); + } + + [Fact] + public void BuildDueTimeoutFilter_IncludesExpiredLeasesForRecovery() + { + var now = new DateTimeOffset(2026, 4, 15, 8, 0, 0, TimeSpan.Zero); + + var filter = MongoDbTimeoutStore.BuildDueTimeoutFilter(now); + var rendered = filter.Render(new RenderArgs( + BsonSerializer.LookupSerializer(), + BsonSerializer.SerializerRegistry)); + + var json = rendered.ToJson(); + + Assert.Contains("\"Time\"", json); + Assert.Contains("\"$or\"", json); + Assert.Contains("\"Locked\" : false", json); + Assert.Contains("\"LockExpiresAt\"", json); + Assert.Contains("\"$lte\"", json); + } + + private static MongoCommandException MakeMongoCommandException(int code) + { + var connectionId = new ConnectionId( + new ServerId(new ClusterId(), new DnsEndPoint("localhost", 27017))); + var result = new BsonDocument + { + ["ok"] = 0, + ["code"] = code, + ["errmsg"] = $"index conflict (code {code})", + }; + var command = new BsonDocument { ["createIndexes"] = "Timeouts" }; + return new MongoCommandException(connectionId, $"command failed with code {code}", command, result); + } + + private static (MongoDbTimeoutStore Store, Mock> Collection) + BuildStoreWithIndexException(int? throwCode) + { + var indexes = new Mock>(); + var indexSetup = indexes.Setup(m => m.CreateManyAsync( + It.IsAny>>(), + It.IsAny())); + if (throwCode.HasValue) + { + indexSetup.ThrowsAsync(MakeMongoCommandException(throwCode.Value)); + } + else + { + indexSetup.ReturnsAsync(["ok"]); + } + indexes.Setup(m => m.DropOneAsync(It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var collection = new Mock>(); + collection.SetupGet(c => c.Indexes).Returns(indexes.Object); + collection.Setup(c => c.InsertOneAsync( + It.IsAny(), + It.IsAny(), + It.IsAny())) + .Returns(Task.CompletedTask); + + var database = new Mock(); + database.Setup(d => d.GetCollection("Timeouts", null)) + .Returns(collection.Object); + + var client = new Mock(); + client.SetupGet(c => c.Settings).Returns(new MongoClientSettings { WriteConcern = WriteConcern.W1 }); + client.Setup(c => c.GetDatabase("test", null)).Returns(database.Object); + + var store = new MongoDbTimeoutStore( + client.Object, + new MongoDbPersistenceOptions { DatabaseName = "test" }, + NullLogger.Instance); + + return (store, collection); + } + + private static MongoDbTimeoutStore BuildStore(Mock> collection) + { + // EnsureTimeoutIndexAsync runs on every read/write path, so every store under + // test needs a benign Indexes mock — otherwise the collection mock returns null and + // CreateManyAsync throws NullReferenceException unrelated to what the test is probing. + if (collection.Object.Indexes == null) + { + var indexes = new Mock>(); + indexes.Setup(m => m.CreateManyAsync( + It.IsAny>>(), + It.IsAny())) + .ReturnsAsync(["ok"]); + indexes.Setup(m => m.DropOneAsync(It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + collection.SetupGet(c => c.Indexes).Returns(indexes.Object); + } + + var database = new Mock(); + database.Setup(d => d.GetCollection("Timeouts", null)) + .Returns(collection.Object); + + var client = new Mock(); + client.SetupGet(c => c.Settings).Returns(new MongoClientSettings { WriteConcern = WriteConcern.W1 }); + client.Setup(c => c.GetDatabase("test", null)).Returns(database.Object); + + return new MongoDbTimeoutStore( + client.Object, + new MongoDbPersistenceOptions { DatabaseName = "test" }, + NullLogger.Instance); + } + + private static string RenderFilter(FilterDefinition filter) + { + return filter.Render(new RenderArgs( + BsonSerializer.LookupSerializer(), + BsonSerializer.SerializerRegistry)) + .ToJson(); + } + + // MongoDB.Driver 3.x always renders Guids in BSON-extended JSON as + // { "$binary": { "base64": "...", "subType": "04" } } (UUID subtype 4 / Standard + // representation) — substring-matching the Guid's hex form against the rendered JSON + // no longer works. This helper returns the base64 string the BSON layer produces for + // a given Guid under the Standard representation so tests can assert on it directly. + private static string GuidAsStandardBase64(Guid id) => + Convert.ToBase64String(new BsonBinaryData(id, GuidRepresentation.Standard).Bytes); + + private static string RenderUpdate(UpdateDefinition update) + { + return update.Render(new RenderArgs( + BsonSerializer.LookupSerializer(), + BsonSerializer.SerializerRegistry)) + .ToJson(); + } + + private static DeleteResult BuildDeleteResult(long deletedCount) + { + var result = new Mock(); + result.SetupGet(r => r.IsAcknowledged).Returns(true); + result.SetupGet(r => r.DeletedCount).Returns(deletedCount); + return result.Object; + } + + private static UpdateResult BuildUpdateResult(long matchedCount, long modifiedCount) + { + var result = new Mock(); + result.SetupGet(r => r.IsAcknowledged).Returns(true); + result.SetupGet(r => r.MatchedCount).Returns(matchedCount); + result.SetupGet(r => r.ModifiedCount).Returns(modifiedCount); + result.SetupGet(r => r.UpsertedId).Returns((BsonValue)BsonNull.Value); + return result.Object; + } + + [Fact] + public async Task InsertTimeout_IndexConflictCode85_IsTolerated_AndInsertProceeds() + { + var (store, collection) = BuildStoreWithIndexException(85); + + var ex = await Record.ExceptionAsync(() => + store.InsertTimeoutAsync(new TimeoutData { Id = Guid.NewGuid(), Time = DateTimeOffset.UtcNow })); + + Assert.Null(ex); + collection.Verify(c => c.InsertOneAsync( + It.IsAny(), + It.IsAny(), + It.IsAny()), + Times.Once); + } + + [Fact] + public async Task InsertTimeout_IndexConflictCode86_IsTolerated_AndInsertProceeds() + { + var (store, collection) = BuildStoreWithIndexException(86); + + var ex = await Record.ExceptionAsync(() => + store.InsertTimeoutAsync(new TimeoutData { Id = Guid.NewGuid(), Time = DateTimeOffset.UtcNow })); + + Assert.Null(ex); + collection.Verify(c => c.InsertOneAsync( + It.IsAny(), + It.IsAny(), + It.IsAny()), + Times.Once); + } + + [Fact] + public async Task InsertTimeout_OtherMongoCommandException_PropagatesAsPersistenceException() + { + var (store, _) = BuildStoreWithIndexException(13); // Unauthorized — must NOT be swallowed. + + await Assert.ThrowsAsync(() => + store.InsertTimeoutAsync(new TimeoutData { Id = Guid.NewGuid(), Time = DateTimeOffset.UtcNow })); + } + + [Fact] + public async Task RemoveDispatchedTimeout_WithMatchingOwner_DeletesLockedTimeout() + { + var id = Guid.NewGuid(); + var lockOwner = Guid.NewGuid(); + FilterDefinition? capturedFilter = null; + + var collection = new Mock>(); + collection.Setup(c => c.DeleteOneAsync(It.IsAny>(), It.IsAny())) + .Callback, CancellationToken>((filter, _) => capturedFilter = filter) + .ReturnsAsync(BuildDeleteResult(1)); + + var store = BuildStore(collection); + + await store.RemoveDispatchedTimeoutAsync(id, lockOwner: lockOwner); + + var json = RenderFilter(Assert.IsAssignableFrom>(capturedFilter)); + Assert.Contains("\"_id\"", json); + Assert.Contains(GuidAsStandardBase64(id), json, StringComparison.Ordinal); + Assert.Contains("\"Locked\" : true", json); + Assert.Contains("\"LockedBy\"", json); + Assert.Contains(GuidAsStandardBase64(lockOwner), json, StringComparison.Ordinal); + } + + [Fact] + public async Task ReleaseDispatchedTimeout_WithMatchingOwner_ClearsLockFields() + { + var id = Guid.NewGuid(); + var lockOwner = Guid.NewGuid(); + FilterDefinition? capturedFilter = null; + UpdateDefinition? capturedUpdate = null; + + var collection = new Mock>(); + collection.Setup(c => c.UpdateOneAsync( + It.IsAny>(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .Callback, UpdateDefinition, UpdateOptions?, CancellationToken>((filter, update, _, _) => + { + capturedFilter = filter; + capturedUpdate = update; + }) + .ReturnsAsync(BuildUpdateResult(1, 1)); + + var store = BuildStore(collection); + + await store.ReleaseDispatchedTimeoutAsync(id, lockOwner: lockOwner); + + var filterJson = RenderFilter(Assert.IsAssignableFrom>(capturedFilter)); + Assert.Contains("\"_id\"", filterJson); + Assert.Contains(GuidAsStandardBase64(id), filterJson, StringComparison.Ordinal); + Assert.Contains("\"Locked\" : true", filterJson); + Assert.Contains("\"LockedBy\"", filterJson); + Assert.Contains(GuidAsStandardBase64(lockOwner), filterJson, StringComparison.Ordinal); + + var updateJson = RenderUpdate(Assert.IsAssignableFrom>(capturedUpdate)); + Assert.Contains("\"Locked\" : false", updateJson); + Assert.Contains("\"LockedBy\"", updateJson); + Assert.Contains(GuidAsStandardBase64(Guid.Empty), updateJson, StringComparison.Ordinal); + Assert.Contains("\"LockExpiresAt\" : null", updateJson); + } + + [Fact] + public async Task RemoveDispatchedTimeout_WithStaleOwner_ThrowsConcurrencyException() + { + // Stale-owner filter matches zero rows → DeletedCount == 0. Surfacing this as a + // ConcurrencyException forces the caller (typically ProcessManagerTimeoutService) + // to log the lease invalidation instead of silently moving on. + var id = Guid.NewGuid(); + var lockOwner = Guid.NewGuid(); + var collection = new Mock>(); + collection.Setup(c => c.DeleteOneAsync(It.IsAny>(), It.IsAny())) + .ReturnsAsync(BuildDeleteResult(0)); + + var store = BuildStore(collection); + + var exception = await Assert.ThrowsAsync(() => + store.RemoveDispatchedTimeoutAsync(id, lockOwner: lockOwner)); + + Assert.Contains(id.ToString(), exception.Message, StringComparison.OrdinalIgnoreCase); + Assert.Contains(lockOwner.ToString(), exception.Message, StringComparison.OrdinalIgnoreCase); + } + + [Fact] + public async Task RemoveDispatchedTimeout_WithMatchingOwner_WhenMongoFails_ThrowsPersistenceException() + { + var id = Guid.NewGuid(); + var lockOwner = Guid.NewGuid(); + var collection = new Mock>(); + collection.Setup(c => c.DeleteOneAsync(It.IsAny>(), It.IsAny())) + .ThrowsAsync(MakeMongoCommandException(91)); + + var store = BuildStore(collection); + + var exception = await Assert.ThrowsAsync(() => + store.RemoveDispatchedTimeoutAsync(id, lockOwner: lockOwner)); + + Assert.Contains(id.ToString(), exception.Message, StringComparison.OrdinalIgnoreCase); + } + + [Fact] + public async Task ReleaseDispatchedTimeout_WithStaleOwner_ThrowsConcurrencyException() + { + // Stale-owner filter matches zero rows → MatchedCount == 0. Surfacing as + // ConcurrencyException mirrors the Remove path so the caller can log and + // recover instead of believing the lock was released. + var id = Guid.NewGuid(); + var lockOwner = Guid.NewGuid(); + var collection = new Mock>(); + collection.Setup(c => c.UpdateOneAsync( + It.IsAny>(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .ReturnsAsync(BuildUpdateResult(0, 0)); + + var store = BuildStore(collection); + + var exception = await Assert.ThrowsAsync(() => + store.ReleaseDispatchedTimeoutAsync(id, lockOwner: lockOwner)); + + Assert.Contains(id.ToString(), exception.Message, StringComparison.OrdinalIgnoreCase); + Assert.Contains(lockOwner.ToString(), exception.Message, StringComparison.OrdinalIgnoreCase); + } + + [Fact] + public async Task ReleaseDispatchedTimeout_WithMatchingOwner_WhenMongoFails_ThrowsPersistenceException() + { + var id = Guid.NewGuid(); + var lockOwner = Guid.NewGuid(); + var collection = new Mock>(); + collection.Setup(c => c.UpdateOneAsync( + It.IsAny>(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .ThrowsAsync(MakeMongoCommandException(91)); + + var store = BuildStore(collection); + + var exception = await Assert.ThrowsAsync(() => + store.ReleaseDispatchedTimeoutAsync(id, lockOwner: lockOwner)); + + Assert.Contains(id.ToString(), exception.Message, StringComparison.OrdinalIgnoreCase); + } + + [Fact] + public async Task RemoveDispatchedTimeout_IdOnly_FilterIsIdAlone() + { + // The unconditional (null lockOwner) Remove path must filter by id alone — no + // Locked/LockedBy guard. The previous LockedBy == Guid.Empty filter caused a + // silent no-op when the row was leased; the new contract removes that guard so + // the row is deleted regardless of lease state. + var id = Guid.NewGuid(); + FilterDefinition? capturedFilter = null; + var collection = new Mock>(); + collection.Setup(c => c.DeleteOneAsync(It.IsAny>(), It.IsAny())) + .Callback, CancellationToken>((filter, _) => capturedFilter = filter) + .ReturnsAsync(BuildDeleteResult(1)); + + var store = BuildStore(collection); + + await store.RemoveDispatchedTimeoutAsync(id, lockOwner: null); + + var json = RenderFilter(Assert.IsAssignableFrom>(capturedFilter)); + Assert.Contains("\"_id\"", json); + Assert.Contains(GuidAsStandardBase64(id), json, StringComparison.Ordinal); + Assert.DoesNotContain("\"Locked\"", json); + Assert.DoesNotContain("\"LockedBy\"", json); + } + + [Fact] + public void Ctor_RejectsNonPositiveTimeoutLockLeaseDuration() + { + // Lease duration must be strictly positive. Zero or negative values + // would either mean claims never expire (no recovery path for a + // crashed worker) or every claim is reaped before dispatch finishes. + var client = new Mock(); + client.SetupGet(c => c.Settings).Returns(new MongoClientSettings { WriteConcern = WriteConcern.W1 }); + client.Setup(c => c.GetDatabase("test", null)).Returns(Mock.Of()); + + Assert.Throws(() => new MongoDbTimeoutStore( + client.Object, + new MongoDbPersistenceOptions { DatabaseName = "test", TimeoutLockLeaseDuration = TimeSpan.Zero }, + NullLogger.Instance)); + } + + [Fact] + public async Task ReapStaleLeases_FiltersOnLockedAndExpiredLease_AndClearsLockFields() + { + // The reaper must target only rows where a lease exists and has expired + // (Locked=true AND LockExpiresAt <= now) and must clear every lease + // field (Locked, LockedBy, LockExpiresAt) so the next poll can reclaim them. + var now = new DateTimeOffset(2026, 4, 22, 12, 0, 0, TimeSpan.Zero); + var time = new FakeTimeProvider(now); + + FilterDefinition? capturedFilter = null; + UpdateDefinition? capturedUpdate = null; + + var collection = new Mock>(); + collection.Setup(c => c.UpdateManyAsync( + It.IsAny>(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .Callback, UpdateDefinition, UpdateOptions?, CancellationToken>((filter, update, _, _) => + { + capturedFilter = filter; + capturedUpdate = update; + }) + .ReturnsAsync(BuildUpdateResult(7, 7)); + + var indexes = new Mock>(); + indexes.Setup(m => m.CreateManyAsync( + It.IsAny>>(), + It.IsAny())) + .ReturnsAsync(["ok"]); + indexes.Setup(m => m.DropOneAsync(It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + collection.SetupGet(c => c.Indexes).Returns(indexes.Object); + + var database = new Mock(); + database.Setup(d => d.GetCollection("Timeouts", null)).Returns(collection.Object); + + var client = new Mock(); + client.SetupGet(c => c.Settings).Returns(new MongoClientSettings { WriteConcern = WriteConcern.W1 }); + client.Setup(c => c.GetDatabase("test", null)).Returns(database.Object); + + var store = new MongoDbTimeoutStore( + client.Object, + new MongoDbPersistenceOptions { DatabaseName = "test" }, + NullLogger.Instance, + time); + + var reaped = await store.ReapStaleLeasesAsync(); + + Assert.Equal(7, reaped); + var filterJson = RenderFilter(Assert.IsAssignableFrom>(capturedFilter)); + Assert.Contains("\"Locked\" : true", filterJson); + // Lease-expired predicate now $$NOW-anchored: { "$expr": { "$lte": [ "$LockExpiresAt", "$$NOW" ] } } + Assert.Contains("\"$expr\"", filterJson); + Assert.Contains("\"$lte\"", filterJson); + Assert.Contains("\"$LockExpiresAt\"", filterJson); + Assert.Contains("\"$$NOW\"", filterJson); + + var updateJson = RenderUpdate(Assert.IsAssignableFrom>(capturedUpdate)); + Assert.Contains("\"Locked\" : false", updateJson); + Assert.Contains("\"LockedBy\"", updateJson); + Assert.Contains(GuidAsStandardBase64(Guid.Empty), updateJson, StringComparison.Ordinal); + Assert.Contains("\"LockExpiresAt\" : null", updateJson); + } + + [Fact] + public void Ctor_RejectsNonPositiveTimeoutBatchSize() + { + // Batch size must be strictly positive. Zero or negative values would + // either disable the per-poll cap (claiming the entire backlog at once) + // or make the claim pass vacuous — defeating the purpose of the limit. + var client = new Mock(); + client.SetupGet(c => c.Settings).Returns(new MongoClientSettings { WriteConcern = WriteConcern.W1 }); + client.Setup(c => c.GetDatabase("test", null)).Returns(Mock.Of()); + + Assert.Throws(() => new MongoDbTimeoutStore( + client.Object, + new MongoDbPersistenceOptions { DatabaseName = "test", TimeoutBatchSize = 0 }, + NullLogger.Instance)); + } + + [Fact] + public async Task GetTimeoutsBatch_PassesConfiguredLimitToFindCandidates() + { + // The poll must cap the claim pass at TimeoutBatchSize by threading the + // value into FindOptions.Limit. Without the bound, a single poll could + // claim the entire due backlog in one pass and starve other workers. + const int configuredLimit = 37; + + FindOptions? capturedFindOptions = null; + + var emptyCursor = new Mock>(); + emptyCursor.SetupSequence(c => c.MoveNext(It.IsAny())) + .Returns(false); + emptyCursor.SetupSequence(c => c.MoveNextAsync(It.IsAny())) + .ReturnsAsync(false); + emptyCursor.SetupGet(c => c.Current).Returns([]); + + var collection = new Mock>(); + collection.Setup(c => c.FindAsync( + It.IsAny>(), + It.IsAny>(), + It.IsAny())) + .Callback, FindOptions, CancellationToken>( + (_, opts, _) => capturedFindOptions = opts) + .ReturnsAsync(emptyCursor.Object); + + var database = new Mock(); + database.Setup(d => d.GetCollection("Timeouts", null)).Returns(collection.Object); + var indexes = new Mock>(); + indexes.Setup(m => m.CreateManyAsync( + It.IsAny>>(), + It.IsAny())) + .ReturnsAsync(["ok"]); + indexes.Setup(m => m.DropOneAsync(It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + collection.SetupGet(c => c.Indexes).Returns(indexes.Object); + + var client = new Mock(); + client.SetupGet(c => c.Settings).Returns(new MongoClientSettings { WriteConcern = WriteConcern.W1 }); + client.Setup(c => c.GetDatabase("test", null)).Returns(database.Object); + // Make StartSessionAsync throw NotSupportedException so the store + // falls back to the unsessioned path — keeps the test independent + // of session-mock plumbing. + client.Setup(c => c.StartSessionAsync( + It.IsAny(), + It.IsAny())) + .ThrowsAsync(new NotSupportedException()); + + var store = new MongoDbTimeoutStore( + client.Object, + new MongoDbPersistenceOptions { DatabaseName = "test", TimeoutBatchSize = configuredLimit }, + NullLogger.Instance); + + try + { + await store.GetTimeoutsBatchAsync(); + } + catch (PersistenceException) + { + // Expected: Aggregate isn't mocked, but FindAsync runs first so + // capturedFindOptions is populated before the aggregate path throws. + } + catch (NullReferenceException) + { + // Aggregate call on an unmocked collection may NRE — same + // rationale: capture already happened on the prior FindAsync. + } + + Assert.NotNull(capturedFindOptions); + Assert.Equal(configuredLimit, capturedFindOptions!.Limit); + } + + [Fact] + public async Task ReleaseDispatchedTimeout_IdOnly_FilterIsIdAlone() + { + // The unconditional (null lockOwner) Release path must filter by id alone — no + // Locked/LockedBy guard. Matches the new Remove contract: id-only is unconditional. + // Pins against the prior silent-no-op where a LockedBy == Guid.Empty filter caused + // Release to skip leased rows instead of unconditionally clearing the lease. + var id = Guid.NewGuid(); + FilterDefinition? capturedFilter = null; + var collection = new Mock>(); + collection.Setup(c => c.UpdateOneAsync( + It.IsAny>(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .Callback, UpdateDefinition, UpdateOptions?, CancellationToken>((filter, _, _, _) => capturedFilter = filter) + .ReturnsAsync(BuildUpdateResult(1, 1)); + + var store = BuildStore(collection); + + await store.ReleaseDispatchedTimeoutAsync(id, lockOwner: null); + + var json = RenderFilter(Assert.IsAssignableFrom>(capturedFilter)); + Assert.Contains("\"_id\"", json); + Assert.Contains(GuidAsStandardBase64(id), json, StringComparison.Ordinal); + Assert.DoesNotContain("\"Locked\"", json); + Assert.DoesNotContain("\"LockedBy\"", json); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/MongoDbPersistenceExtensionsIdempotencyTests.cs b/src/ServiceConnect.UnitTests/Persistence/MongoDbPersistenceExtensionsIdempotencyTests.cs new file mode 100644 index 000000000..90d3b5046 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/MongoDbPersistenceExtensionsIdempotencyTests.cs @@ -0,0 +1,30 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Hosting; +using ServiceConnect; +using ServiceConnect.Persistence.MongoDb; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence; + +public class MongoDbPersistenceExtensionsIdempotencyTests +{ + [Fact] + public void UseMongoDbPersistence_CalledTwice_RegistersOneIndexInitializer() + { + var builder = new ServiceConnectBuilder(); + builder.UseMongoDbPersistence(opt => opt.ConnectionString = "mongodb://localhost:27017"); + builder.UseMongoDbPersistence(opt => opt.ConnectionString = "mongodb://localhost:27017"); + + var services = new ServiceCollection(); + foreach (var registration in builder.AdditionalRegistrations) + { + registration(services); + } + + var initializerCount = services.Count(d => + d.ServiceType == typeof(IHostedService) + && d.ImplementationType == typeof(MongoDbProcessManagerIndexInitializer)); + + Assert.Equal(1, initializerCount); + } +} diff --git a/src/ServiceConnect.UnitTests/Persistence/ProcessManagerPredicateCacheTests.cs b/src/ServiceConnect.UnitTests/Persistence/ProcessManagerPredicateCacheTests.cs new file mode 100644 index 000000000..157883a21 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Persistence/ProcessManagerPredicateCacheTests.cs @@ -0,0 +1,39 @@ +using ServiceConnect.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.UnitTests.Persistence; + +public class ProcessManagerPredicateCacheTests +{ + [Fact] + public void PredicateCacheKey_NullPropertiesHierarchy_ThrowsArgumentNullException() + { + // Null propertiesHierarchy must be rejected at construction. Storing null silently + // would NRE later on the hot path inside Equals/GetHashCode. + var ex = Assert.Throws(() => + new ProcessManagerPredicateCache.PredicateCacheKey(typeof(int), null!, typeof(string))); + Assert.Equal("propertiesHierarchy", ex.ParamName); + } + + [Fact] + public void PredicateCacheKey_NullT_ThrowsArgumentNullException() + { + var ex = Assert.Throws(() => + new ProcessManagerPredicateCache.PredicateCacheKey( + null!, + new Dictionary(), + typeof(string))); + Assert.Equal("t", ex.ParamName); + } + + [Fact] + public void PredicateCacheKey_NullPropertyType_ThrowsArgumentNullException() + { + var ex = Assert.Throws(() => + new ProcessManagerPredicateCache.PredicateCacheKey( + typeof(int), + new Dictionary(), + null!)); + Assert.Equal("propertyType", ex.ParamName); + } +} diff --git a/src/ServiceConnect.UnitTests/ProcessManagerProcessorTest.cs b/src/ServiceConnect.UnitTests/ProcessManagerProcessorTest.cs deleted file mode 100644 index e77706519..000000000 --- a/src/ServiceConnect.UnitTests/ProcessManagerProcessorTest.cs +++ /dev/null @@ -1,591 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; -using Moq; -using Newtonsoft.Json; -using ServiceConnect.Core; -using ServiceConnect.Interfaces; -using ServiceConnect.UnitTests.Fakes; -using ServiceConnect.UnitTests.Fakes.Messages; -using ServiceConnect.UnitTests.Fakes.ProcessManagers; -using Xunit; - -namespace ServiceConnect.UnitTests -{ - public class ProcessManagerProcessorTest - { - private readonly Mock _mockContainer; - private readonly Mock _mockProcessManagerFinder; - private Mock _mockLogger; - - public ProcessManagerProcessorTest() - { - _mockContainer = new Mock(); - _mockProcessManagerFinder = new Mock(); - _mockLogger = new Mock(); - } - - [Fact] - public void ShouldGetCorrectProcessManagerReferencesFromContainer() - { - // Arrange - _mockContainer.Setup(x => x.GetHandlerTypes(typeof(IMessageHandler), typeof(IAsyncMessageHandler))).Returns(new List - { - new HandlerReference - { - HandlerType = typeof(FakeProcessManager1), - MessageType = typeof(FakeMessage1) - } - }); - _mockContainer.Setup(x => x.GetHandlerTypes(typeof(IStartProcessManager), typeof(IStartAsyncProcessManager))).Returns(new List - { - new HandlerReference - { - HandlerType = typeof(FakeProcessManager1), - MessageType = typeof(FakeMessage1) - } - }); - - _mockContainer.Setup(x => x.GetInstance(typeof(FakeProcessManager1))).Returns(new FakeProcessManager1()); - - var data = new FakeProcessManagerData - { - User = "Tim Watson" - }; - var mockPersistanceData = new Mock>(); - mockPersistanceData.Setup(x => x.Data).Returns(data); - //_mockProcessManagerFinder.Setup(x => x.FindData(It.IsAny())).Returns(mockPersistanceData.Object); - //_mockProcessManagerFinder.Setup(x => x.FindData(It.IsAny())).Returns(mockPersistanceData.Object); - _mockProcessManagerFinder.Setup(x => x.FindData(It.IsAny(), It.IsAny())).Returns(mockPersistanceData.Object); - - var processManagerProcessor = new ProcessManagerProcessor(_mockProcessManagerFinder.Object, _mockContainer.Object, _mockLogger.Object); - - // Act - processManagerProcessor.ProcessMessage(JsonConvert.SerializeObject(new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim Watson" - }), new ConsumeContext()).GetAwaiter().GetResult(); - - // Assert - _mockContainer.Verify(x => x.GetHandlerTypes(typeof (IMessageHandler), typeof(IAsyncMessageHandler)), Times.Once); - _mockContainer.Verify(x => x.GetHandlerTypes(typeof (IStartProcessManager), typeof(IStartAsyncProcessManager)), Times.Once); - } - - [Fact] - public void ShouldStartNewProcessManager() - { - // Arrange - _mockContainer.Setup(x => x.GetHandlerTypes(typeof(IMessageHandler), typeof(IAsyncMessageHandler))).Returns(new List - { - new HandlerReference - { - HandlerType = typeof(FakeProcessManager1), - MessageType = typeof(FakeMessage1) - } - }); - _mockContainer.Setup(x => x.GetHandlerTypes(typeof(IStartProcessManager), typeof(IStartAsyncProcessManager))).Returns(new List - { - new HandlerReference - { - HandlerType = typeof(FakeProcessManager1), - MessageType = typeof(FakeMessage1) - } - }); - - var processManager = new FakeProcessManager1(); - - _mockContainer.Setup(x => x.GetInstance(typeof(FakeProcessManager1))).Returns(processManager); - - var data = new FakeProcessManagerData - { - User = "Tim Watson" - }; - var mockPersistanceData = new Mock>(); - mockPersistanceData.Setup(x => x.Data).Returns(data); - _mockProcessManagerFinder.Setup(x => x.FindData(It.IsAny(), It.IsAny())).Returns(mockPersistanceData.Object); - _mockProcessManagerFinder.Setup(x => x.FindData(It.IsAny(), It.IsAny())).Returns(mockPersistanceData.Object); - - var processManagerProcessor = new ProcessManagerProcessor(_mockProcessManagerFinder.Object, _mockContainer.Object, _mockLogger.Object); - - // Act - processManagerProcessor.ProcessMessage(JsonConvert.SerializeObject(new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim Watson" - }), new ConsumeContext()).GetAwaiter().GetResult(); - - // Assert - // Data.User is set by the ProcessManagers Execute method - Assert.Equal("Tim Watson", processManager.Data.User); - } - - [Fact] - public void ShouldStartNewAsyncProcessManager() - { - // Arrange - _mockContainer.Setup(x => x.GetHandlerTypes(typeof(IMessageHandler), typeof(IAsyncMessageHandler))).Returns(new List - { - new HandlerReference - { - HandlerType = typeof(FakeAsyncProcessManager1), - MessageType = typeof(FakeMessage1) - } - }); - _mockContainer.Setup(x => x.GetHandlerTypes(typeof(IStartProcessManager), typeof(IStartAsyncProcessManager))).Returns(new List - { - new HandlerReference - { - HandlerType = typeof(FakeAsyncProcessManager1), - MessageType = typeof(FakeMessage1) - } - }); - - var processManager = new FakeAsyncProcessManager1(); - - _mockContainer.Setup(x => x.GetInstance(typeof(FakeAsyncProcessManager1))).Returns(processManager); - - var data = new FakeProcessManagerData - { - User = "Tim Watson" - }; - var mockPersistanceData = new Mock>(); - mockPersistanceData.Setup(x => x.Data).Returns(data); - _mockProcessManagerFinder.Setup(x => x.FindData(It.IsAny(), It.IsAny())).Returns(mockPersistanceData.Object); - _mockProcessManagerFinder.Setup(x => x.FindData(It.IsAny(), It.IsAny())).Returns(mockPersistanceData.Object); - - var processManagerProcessor = new ProcessManagerProcessor(_mockProcessManagerFinder.Object, _mockContainer.Object, _mockLogger.Object); - - // Act - processManagerProcessor.ProcessMessage(JsonConvert.SerializeObject(new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim Watson" - }), new ConsumeContext()).GetAwaiter().GetResult(); - - // Assert - // Data.User is set by the ProcessManagers Execute method - Assert.Equal("Tim Watson", processManager.Data.User); - } - - [Fact] - public void ShouldStartNewProcessManagerWithConsumerContext() - { - // Arrange - _mockContainer.Setup(x => x.GetHandlerTypes(typeof(IMessageHandler), typeof(IAsyncMessageHandler))).Returns(new List - { - new HandlerReference - { - HandlerType = typeof(FakeProcessManager1), - MessageType = typeof(FakeMessage1) - } - }); - _mockContainer.Setup(x => x.GetHandlerTypes(typeof(IStartProcessManager), typeof(IStartAsyncProcessManager))).Returns(new List - { - new HandlerReference - { - HandlerType = typeof(FakeProcessManager1), - MessageType = typeof(FakeMessage1) - } - }); - - var processManager = new FakeProcessManager1(); - - _mockContainer.Setup(x => x.GetInstance(typeof(FakeProcessManager1))).Returns(processManager); - - var data = new FakeProcessManagerData - { - User = "Tim Watson" - }; - var mockPersistanceData = new Mock>(); - mockPersistanceData.Setup(x => x.Data).Returns(data); - _mockProcessManagerFinder.Setup(x => x.FindData(It.IsAny(), It.IsAny())).Returns(mockPersistanceData.Object); - - var processManagerProcessor = new ProcessManagerProcessor(_mockProcessManagerFinder.Object, _mockContainer.Object, _mockLogger.Object); - - var context = new ConsumeContext(); - - // Act - processManagerProcessor.ProcessMessage(JsonConvert.SerializeObject(new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim Watson" - }), context).GetAwaiter().GetResult(); - - // Assert - // Data.User is set by the ProcessManagers Execute method - Assert.Equal(context, processManager.Context); - } - - [Fact] - public void ShouldPersistNewProcessManagerWhenPersistanceDataDoesNotYetExist() - { - // Arrange - _mockContainer.Setup(x => x.GetHandlerTypes(typeof(IMessageHandler), typeof(IAsyncMessageHandler))).Returns(new List - { - new HandlerReference - { - HandlerType = typeof(FakeProcessManager1), - MessageType = typeof(FakeMessage1) - } - }); - _mockContainer.Setup(x => x.GetHandlerTypes(typeof(IStartProcessManager), typeof(IStartAsyncProcessManager))).Returns(new List - { - new HandlerReference - { - HandlerType = typeof(FakeProcessManager1), - MessageType = typeof(FakeMessage1) - } - }); - - var processManager = new FakeProcessManager1(); - _mockContainer.Setup(x => x.GetInstance(typeof(FakeProcessManager1))).Returns(processManager); - - IPersistanceData nullPersistanceData = null; - _mockProcessManagerFinder.Setup(x => x.FindData(It.IsAny(), It.IsAny())).Returns(nullPersistanceData); - - var processManagerProcessor = new ProcessManagerProcessor(_mockProcessManagerFinder.Object, _mockContainer.Object, _mockLogger.Object); - - // Act - processManagerProcessor.ProcessMessage(JsonConvert.SerializeObject(new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim Watson" - }), new ConsumeContext()).GetAwaiter().GetResult(); - - // Assert - _mockProcessManagerFinder.Verify(x => x.InsertData(It.Is(y => y.User == "Tim Watson")), Times.Once); - } - - [Fact] - public void ShouldPersistNewProcessManagerWithExistingPersistanceData() - { - // Arrange - _mockContainer.Setup(x => x.GetHandlerTypes(typeof(IMessageHandler), typeof(IAsyncMessageHandler))).Returns(new List - { - new HandlerReference - { - HandlerType = typeof(FakeProcessManager1), - MessageType = typeof(FakeMessage1) - } - }); - _mockContainer.Setup(x => x.GetHandlerTypes(typeof(IStartProcessManager), typeof(IStartAsyncProcessManager))).Returns(new List - { - new HandlerReference - { - HandlerType = typeof(FakeProcessManager1), - MessageType = typeof(FakeMessage1) - } - }); - - var processManager = new FakeProcessManager1(); - _mockContainer.Setup(x => x.GetInstance(typeof(FakeProcessManager1))).Returns(processManager); - - var data = new FakeProcessManagerData - { - User = "Jakub Pachansky" - }; - var mockPersistanceData = new Mock>(); - mockPersistanceData.Setup(x => x.Data).Returns(data); - _mockProcessManagerFinder.Setup(x => x.FindData(It.IsAny(), It.IsAny())).Returns(mockPersistanceData.Object); - - var processManagerProcessor = new ProcessManagerProcessor(_mockProcessManagerFinder.Object, _mockContainer.Object, _mockLogger.Object); - - // Act - processManagerProcessor.ProcessMessage(JsonConvert.SerializeObject(new FakeMessage1(Guid.NewGuid()) - { - Username = "Jakub Pachansky" - }), new ConsumeContext()).GetAwaiter().GetResult(); - - // Assert - _mockProcessManagerFinder.Verify(x => x.UpdateData(It.Is>(y => y.Data.User == "Jakub Pachansky")), Times.Exactly(2)); - } - - [Fact] - public void ShouldFindExistingProcessManagerInstance() - { - // Arrange - var id = Guid.NewGuid(); - var message = new FakeMessage2(id); - - _mockContainer.Setup(x => x.GetHandlerTypes(typeof(IMessageHandler), typeof(IAsyncMessageHandler))).Returns(new List - { - new HandlerReference - { - HandlerType = typeof(FakeProcessManager1), - MessageType = typeof(FakeMessage2) - } - }); - - var processManager = new FakeProcessManager1(); - _mockContainer.Setup(x => x.GetInstance(typeof(FakeProcessManager1))).Returns(processManager); - - var data = new FakeProcessManagerData - { - User = "Tim Watson" - }; - var mockPersistanceData = new Mock>(); - mockPersistanceData.Setup(x => x.Data).Returns(data); - _mockProcessManagerFinder.Setup(x => x.FindData(It.IsAny(), message)).Returns(mockPersistanceData.Object); - - var processManagerProcessor = new ProcessManagerProcessor(_mockProcessManagerFinder.Object, _mockContainer.Object, _mockLogger.Object); - - // Act - processManagerProcessor.ProcessMessage(JsonConvert.SerializeObject(message), new ConsumeContext()).GetAwaiter().GetResult(); - - - _mockContainer.Verify(x => x.GetInstance(typeof (FakeProcessManager1)), Times.Once); - _mockProcessManagerFinder.Verify(x => x.FindData(It.IsAny(), It.Is(m=>m.CorrelationId == id)), Times.Once); - } - - [Fact] - public void ShouldStartProcessManagerWithExistingData() - { - // Arrange - var id = Guid.NewGuid(); - var message = new FakeMessage2(id) - { - Email = "abc@123.com" - }; - - var data = new FakeProcessManagerData - { - User = "Tim Watson" - }; - - var mockPersistanceData = new Mock>(); - mockPersistanceData.Setup(x => x.Data).Returns(data); - _mockContainer.Setup(x => x.GetHandlerTypes(typeof(IMessageHandler), typeof(IAsyncMessageHandler))).Returns(new List - { - new HandlerReference - { - HandlerType = typeof(FakeProcessManager1), - MessageType = typeof(FakeMessage2) - } - }); - - var processManager = new FakeProcessManager1(); - _mockContainer.Setup(x => x.GetInstance(typeof(FakeProcessManager1))).Returns(processManager); - _mockProcessManagerFinder.Setup(x => x.FindData(It.IsAny(),It.Is(m => m.CorrelationId == id))).Returns(mockPersistanceData.Object); - - var processManagerProcessor = new ProcessManagerProcessor(_mockProcessManagerFinder.Object, _mockContainer.Object, _mockLogger.Object); - - // Act - processManagerProcessor.ProcessMessage(JsonConvert.SerializeObject(message), new ConsumeContext()).GetAwaiter().GetResult(); - - // Assert - Assert.Equal("Tim Watson", processManager.Data.User); // Can only be this if Data was set on process manager - Assert.Equal("abc@123.com", processManager.Data.Email); // Can only be this if execute was called - } - - [Fact] - public void ShouldStartAsyncProcessManagerWithExistingData() - { - // Arrange - var id = Guid.NewGuid(); - var message = new FakeMessage2(id) - { - Email = "abc@123.com" - }; - - var data = new FakeProcessManagerData - { - User = "Tim Watson" - }; - - var mockPersistanceData = new Mock>(); - mockPersistanceData.Setup(x => x.Data).Returns(data); - _mockContainer.Setup(x => x.GetHandlerTypes(typeof(IMessageHandler), typeof(IAsyncMessageHandler))).Returns(new List - { - new HandlerReference - { - HandlerType = typeof(FakeAsyncProcessManager1), - MessageType = typeof(FakeMessage2) - } - }); - - var processManager = new FakeAsyncProcessManager1(); - _mockContainer.Setup(x => x.GetInstance(typeof(FakeAsyncProcessManager1))).Returns(processManager); - _mockProcessManagerFinder.Setup(x => x.FindData(It.IsAny(), It.Is(m => m.CorrelationId == id))).Returns(mockPersistanceData.Object); - - var processManagerProcessor = new ProcessManagerProcessor(_mockProcessManagerFinder.Object, _mockContainer.Object, _mockLogger.Object); - - // Act - processManagerProcessor.ProcessMessage(JsonConvert.SerializeObject(message), new ConsumeContext()).GetAwaiter().GetResult(); - - // Assert - Assert.Equal("Tim Watson", processManager.Data.User); // Can only be this if Data was set on process manager - Assert.Equal("abc@123.com", processManager.Data.Email); // Can only be this if execute was called - } - - [Fact] - public void ShouldStartExistingProcessManagerWithConsumerContext() - { - // Arrange - var id = Guid.NewGuid(); - var message = new FakeMessage2(id) - { - Email = "abc@123.com" - }; - - var data = new FakeProcessManagerData - { - User = "Tim Watson" - }; - - var mockPersistanceData = new Mock>(); - mockPersistanceData.Setup(x => x.Data).Returns(data); - _mockContainer.Setup(x => x.GetHandlerTypes(typeof(IMessageHandler), typeof(IAsyncMessageHandler))).Returns(new List - { - new HandlerReference - { - HandlerType = typeof(FakeProcessManager1), - MessageType = typeof(FakeMessage2) - } - }); - - var processManager = new FakeProcessManager1(); - _mockContainer.Setup(x => x.GetInstance(typeof(FakeProcessManager1))).Returns(processManager); - _mockProcessManagerFinder.Setup(x => x.FindData(It.IsAny(), It.Is(m => m.CorrelationId == id))).Returns(mockPersistanceData.Object); - - var processManagerProcessor = new ProcessManagerProcessor(_mockProcessManagerFinder.Object, _mockContainer.Object, _mockLogger.Object); - - var context = new ConsumeContext(); - - // Act - processManagerProcessor.ProcessMessage(JsonConvert.SerializeObject(message), context).GetAwaiter().GetResult(); - - // Assert - Assert.Equal(context, processManager.Context); - } - - [Fact] - public void ShouldUpdateProcessManagerData() - { - // Arrange - var id = Guid.NewGuid(); - var message = new FakeMessage2(id) - { - Email = "abc@123.com" - }; - - var data = new FakeProcessManagerData - { - User = "Tim Watson" - }; - - var mockPersistanceData = new Mock>(); - mockPersistanceData.Setup(x => x.Data).Returns(data); - _mockContainer.Setup(x => x.GetHandlerTypes(typeof(IMessageHandler), typeof(IAsyncMessageHandler))).Returns(new List - { - new HandlerReference - { - HandlerType = typeof(FakeProcessManager1), - MessageType = typeof(FakeMessage2) - } - }); - - var processManager = new FakeProcessManager1(); - _mockContainer.Setup(x => x.GetInstance(typeof(FakeProcessManager1))).Returns(processManager); - _mockProcessManagerFinder.Setup(x => x.FindData(It.IsAny(), It.Is(m => m.CorrelationId == id))).Returns(mockPersistanceData.Object); - - _mockProcessManagerFinder.Setup(x => x.UpdateData(It.IsAny())); - - var processManagerProcessor = new ProcessManagerProcessor(_mockProcessManagerFinder.Object, _mockContainer.Object, _mockLogger.Object); - - // Act - processManagerProcessor.ProcessMessage(JsonConvert.SerializeObject(message), new ConsumeContext()).GetAwaiter().GetResult(); - - // Assert - _mockProcessManagerFinder.Verify(x => x.UpdateData(It.Is>(y => y.Data.Email == "abc@123.com" && y.Data.User == "Tim Watson")), Times.Once); - } - - [Fact] - public void ShouldRemoveProcessManagerDataIfProcessManagerIsComplete() - { - // Arrange - var id = Guid.NewGuid(); - var message = new FakeMessage2(id) - { - Email = "abc@123.com" - }; - - var data = new FakeProcessManagerData - { - User = "Tim Watson" - }; - - var mockPersistanceData = new Mock>(); - mockPersistanceData.Setup(x => x.Data).Returns(data); - _mockContainer.Setup(x => x.GetHandlerTypes(typeof(IMessageHandler), typeof(IAsyncMessageHandler))).Returns(new List - { - new HandlerReference - { - HandlerType = typeof(FakeProcessManager1), - MessageType = typeof(FakeMessage2) - } - }); - - var processManager = new FakeProcessManager1 - { - Complete = true - }; - _mockContainer.Setup(x => x.GetInstance(typeof(FakeProcessManager1))).Returns(processManager); - _mockProcessManagerFinder.Setup(x => x.FindData(It.IsAny(), It.Is(m => m.CorrelationId == id))).Returns(mockPersistanceData.Object); - - _mockProcessManagerFinder.Setup(x => x.UpdateData(It.IsAny())); - - var processManagerProcessor = new ProcessManagerProcessor(_mockProcessManagerFinder.Object, _mockContainer.Object, _mockLogger.Object); - - // Act - processManagerProcessor.ProcessMessage(JsonConvert.SerializeObject(message), new ConsumeContext()).GetAwaiter().GetResult(); - - // Assert - _mockProcessManagerFinder.Verify(x => x.DeleteData(It.Is>(y => y.Data.Email == "abc@123.com" && y.Data.User == "Tim Watson")), Times.Once); - } - - [Fact] - public void ShouldNotExecuteHandlerIfProcessManagerDataIsNotFound() - { - // Arrange - var id = Guid.NewGuid(); - var message = new FakeMessage2(id) - { - Email = "abc@123.com" - }; - - _mockContainer.Setup(x => x.GetHandlerTypes(typeof(IMessageHandler))).Returns(new List - { - new HandlerReference - { - HandlerType = typeof(FakeProcessManager1), - MessageType = typeof(FakeMessage2) - } - }); - - var processManager = new FakeProcessManager1(); - _mockContainer.Setup(x => x.GetInstance(typeof(FakeProcessManager1))).Returns(processManager); - _mockProcessManagerFinder.Setup(x => x.FindData(It.IsAny(), It.Is(m => m.CorrelationId == id))).Returns((IPersistanceData) null); - - _mockProcessManagerFinder.Setup(x => x.UpdateData(It.IsAny())); - - var processManagerProcessor = new ProcessManagerProcessor(_mockProcessManagerFinder.Object, _mockContainer.Object, _mockLogger.Object); - - // Act - processManagerProcessor.ProcessMessage(JsonConvert.SerializeObject(message), new ConsumeContext()); - - // Assert - _mockProcessManagerFinder.Verify(x => x.UpdateData(It.IsAny>()), Times.Never); - } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.UnitTests/ProcessMessagePipeline.cs b/src/ServiceConnect.UnitTests/ProcessMessagePipeline.cs deleted file mode 100644 index 297a68997..000000000 --- a/src/ServiceConnect.UnitTests/ProcessMessagePipeline.cs +++ /dev/null @@ -1,159 +0,0 @@ -using Moq; -using Newtonsoft.Json; -using ServiceConnect.Core; -using ServiceConnect.Interfaces; -using ServiceConnect.UnitTests.Aggregator; -using ServiceConnect.UnitTests.Fakes.Messages; -using System; -using System.Collections.Generic; -using System.Text; -using System.Threading.Tasks; -using Xunit; - -namespace ServiceConnect.UnitTests -{ - public class ProcessMessagePipelineTests - { - private readonly Mock _mockConfiguration; - private readonly Mock _mockContainer; - private readonly Mock _mockMessageHandlerProcessor; - private readonly Mock _mockProcessManagerProcessor; - private readonly ConsumeContext _consumeContext; - - public ProcessMessagePipelineTests() - { - _mockConfiguration = new Mock(); - _mockContainer = new Mock(); - - _mockMessageHandlerProcessor = new Mock(); - _mockProcessManagerProcessor = new Mock(); - _mockMessageHandlerProcessor = new Mock(); - _mockConfiguration.Setup(x => x.GetContainer()).Returns(_mockContainer.Object); - _mockContainer.Setup(x => x.GetInstance(It.IsAny>())).Returns(_mockMessageHandlerProcessor.Object); - _mockContainer.Setup(x => x.GetInstance(It.IsAny>())).Returns(_mockProcessManagerProcessor.Object); - _mockContainer.Setup(x => x.GetInstance(typeof(Middleware1))).Returns(new Middleware1()); - _mockContainer.Setup(x => x.GetInstance(typeof(Middleware2))).Returns(new Middleware2()); - _middleware1BeforeExecuted = false; - _middleware1AfterExecuted = false; - _middleware2BeforeExecuted = false; - _middleware2AfterExecuted = false; - _consumeContext = new ConsumeContext - { - Bus = new Mock().Object, - Headers = new Dictionary() - }; - _mockProcessManagerProcessor.Setup(x => x.ProcessMessage(It.IsAny(), It.IsAny())).Returns(Task.Run(() => { })); - _mockMessageHandlerProcessor.Setup(x => x.ProcessMessage(It.IsAny(), It.IsAny())).Returns(Task.Run(() => { })); - } - - [Fact] - public async Task ShouldExecuteMiddlewareWhenHandlingMessage() - { - _mockConfiguration.SetupGet(x => x.MessageProcessingMiddleware).Returns(new List { - typeof(Middleware1), - typeof(Middleware2) - }); - - var pipeline = new ProcessMessagePipeline(_mockConfiguration.Object, new BusState()); - await pipeline.ExecutePipeline(_consumeContext, typeof(MiddlewareMessage), new Envelope - { - Headers = new Dictionary(), - Body = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(new MiddlewareMessage(Guid.NewGuid()))) - }); - - Assert.True(_middleware1BeforeExecuted); - Assert.True(_middleware1AfterExecuted); - Assert.True(_middleware2BeforeExecuted); - - Assert.True(_middleware2AfterExecuted); - _mockProcessManagerProcessor.Verify(x => x.ProcessMessage(It.IsAny(), It.Is(x => x == _consumeContext)), Times.Once); - _mockMessageHandlerProcessor.Verify(x => x.ProcessMessage(It.IsAny(), It.Is(x => x == _consumeContext)), Times.Once); - } - - [Fact] - public async Task ShouldExecuteHandlerWhenNoMiddlewareDefined() - { - _mockConfiguration.SetupGet(x => x.MessageProcessingMiddleware).Returns(new List()); - - var pipeline = new ProcessMessagePipeline(_mockConfiguration.Object, new BusState()); - await pipeline.ExecutePipeline(_consumeContext, typeof(MiddlewareMessage), new Envelope - { - Headers = new Dictionary(), - Body = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(new MiddlewareMessage(Guid.NewGuid()))) - }); - - - Assert.False(_middleware1BeforeExecuted); - Assert.False(_middleware1AfterExecuted); - Assert.False(_middleware2BeforeExecuted); - Assert.False(_middleware2AfterExecuted); - - _mockProcessManagerProcessor.Verify(x => x.ProcessMessage(It.IsAny(), It.Is(x => x == _consumeContext)), Times.Once); - _mockMessageHandlerProcessor.Verify(x => x.ProcessMessage(It.IsAny(), It.Is(x => x == _consumeContext)), Times.Once); - - } - - [Fact] - public async Task ShouldSendMessageToAggregatorProcessor() - { - _mockConfiguration.SetupGet(x => x.MessageProcessingMiddleware).Returns(new List()); - - var message = new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim" - }; - - var processor = new Mock(); - processor.Setup(x => x.ProcessMessage(JsonConvert.SerializeObject(message))); - - var busState = new BusState(); - busState.AggregatorProcessors[typeof(FakeMessage1)] = processor.Object; - - var pipeline = new ProcessMessagePipeline(_mockConfiguration.Object, busState); - await pipeline.ExecutePipeline(_consumeContext, typeof(FakeMessage1), new Envelope - { - Headers = new Dictionary(), - Body = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(message)) - }); - - processor.Verify(x => x.ProcessMessage(It.Is(y => JsonConvert.DeserializeObject(y).Username == "Tim")), Times.Once); - } - - - private static bool _middleware1BeforeExecuted = false; - private static bool _middleware1AfterExecuted = false; - private static bool _middleware2BeforeExecuted = false; - private static bool _middleware2AfterExecuted = false; - - public class Middleware1 : IProcessMessageMiddleware - { - public ProcessMessageDelegate Next { get; set; } - public async Task Process(IConsumeContext context, Type typeObject, Envelope envelope) - { - _middleware1BeforeExecuted = true; - await Next(context, typeObject, envelope); - _middleware1AfterExecuted = true; - } - } - - public class Middleware2 : IProcessMessageMiddleware - { - public ProcessMessageDelegate Next { get; set; } - - public async Task Process(IConsumeContext context, Type typeObject, Envelope envelope) - { - _middleware2BeforeExecuted = true; - await Next(context, typeObject, envelope); - _middleware2AfterExecuted = true; - } - } - - - public class MiddlewareMessage : Message - { - public MiddlewareMessage(Guid correlationId) : base(correlationId) - { - } - } - } -} diff --git a/src/ServiceConnect.UnitTests/Processors/AggregatorProcessorFlushAfterDisposeTests.cs b/src/ServiceConnect.UnitTests/Processors/AggregatorProcessorFlushAfterDisposeTests.cs new file mode 100644 index 000000000..fdcddfe20 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Processors/AggregatorProcessorFlushAfterDisposeTests.cs @@ -0,0 +1,72 @@ +using System.Collections.Concurrent; +using System.Reflection; +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Services; +using ServiceConnect.Services.Processors; +using Xunit; + +namespace ServiceConnect.UnitTests.Processors; + +public class AggregatorProcessorFlushAfterDisposeTests +{ + [Fact] + public async Task FlushAggregator_AfterDisposed_DoesNotInsertNewLock() + { + var services = new ServiceCollection(); + var provider = services.BuildServiceProvider(); + var registry = new AggregatorRegistry( + [], + provider.GetRequiredService(), + NullLogger.Instance); + var scopeFactory = provider.GetRequiredService(); + var scopeAccessor = new ConsumeScopeAccessor(); + var persistor = Mock.Of(); + + var processor = new AggregatorProcessor( + registry, scopeAccessor, scopeFactory, + NullLogger.Instance, persistor); + + // Pre-set _disposed to 1 so that DisposeAsync bookkeeping (draining _activeFlushes, + // clearing _flushLocks) has been skipped — simulating the race where a timer callback + // reaches FlushAggregatorAsync after DisposeAsync's Clear() has already run. + var disposedField = typeof(AggregatorProcessor).GetField("_disposed", + BindingFlags.NonPublic | BindingFlags.Instance)!; + disposedField.SetValue(processor, 1); + + var flushLocks = (ConcurrentDictionary)typeof(AggregatorProcessor) + .GetField("_flushLocks", BindingFlags.NonPublic | BindingFlags.Instance)! + .GetValue(processor)!; + + var flushMethod = typeof(AggregatorProcessor).GetMethod( + "FlushAggregatorAsync", BindingFlags.NonPublic | BindingFlags.Instance)!; + + // Build a descriptor with a known name; BuildTypedList and InvokeExecuteAsync will + // never be reached because we expect the method to throw before acquiring the lock. + var descriptor = new AggregatorDescriptor( + MessageType: typeof(object), + AggregatorBaseType: typeof(object), + AggregatorName: "post-dispose-aggregator", + BatchSize: 0, + Timeout: TimeSpan.Zero, + BuildTypedList: _ => new List(), + InvokeExecuteAsync: (_, _, _) => Task.CompletedTask); + + // Drives FlushAggregatorAsync after _disposed has been pre-set, asserting the entry + // fast-fail throws ODE without inserting a _flushLocks entry. The deeper + // recovery branch (TryRemove + Dispose after a disposed-mid-GetOrAdd race) + // is correctness-by-inspection — not exercised here, since the synthetic + // precondition trips the entry guard before reaching it. + // FlushAggregatorAsync signature: (descriptor, ambientScope, minThreshold, cancellationToken). + // minThreshold of 1 mirrors the timer-path call; the batch path passes BatchSize. + var task = (Task)flushMethod.Invoke(processor, + [descriptor, null, 1, CancellationToken.None])!; + + await Assert.ThrowsAsync(async () => await task); + + Assert.False(flushLocks.ContainsKey("post-dispose-aggregator"), + "FlushAggregatorAsync must not install a new _flushLocks entry after Dispose"); + } +} diff --git a/src/ServiceConnect.UnitTests/Processors/AggregatorProcessorResetTimerDisposeTests.cs b/src/ServiceConnect.UnitTests/Processors/AggregatorProcessorResetTimerDisposeTests.cs new file mode 100644 index 000000000..f9011872c --- /dev/null +++ b/src/ServiceConnect.UnitTests/Processors/AggregatorProcessorResetTimerDisposeTests.cs @@ -0,0 +1,109 @@ +using System.Collections.Concurrent; +using System.Reflection; +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Services; +using ServiceConnect.Services.Processors; +using Xunit; + +namespace ServiceConnect.UnitTests.Processors; + +public class AggregatorProcessorResetTimerDisposeTests +{ + [Fact] + public void ResetTimer_AfterDispose_DoesNotInstallTimer() + { + var services = new ServiceCollection(); + var provider = services.BuildServiceProvider(); + var registry = new AggregatorRegistry( + [], + provider.GetRequiredService(), + NullLogger.Instance); + var scopeFactory = provider.GetRequiredService(); + var scopeAccessor = new ConsumeScopeAccessor(); + var persistor = Mock.Of(); + + var processor = new AggregatorProcessor( + registry, scopeAccessor, scopeFactory, + NullLogger.Instance, persistor); + + // Pre-set _disposed so ResetTimer sees the disposed state under the lock. + var disposedField = typeof(AggregatorProcessor).GetField("_disposed", + BindingFlags.NonPublic | BindingFlags.Instance)!; + disposedField.SetValue(processor, 1); + + var timers = (ConcurrentDictionary)typeof(AggregatorProcessor) + .GetField("_timers", BindingFlags.NonPublic | BindingFlags.Instance)! + .GetValue(processor)!; + + var resetTimerMethod = typeof(AggregatorProcessor).GetMethod( + "ResetTimer", BindingFlags.NonPublic | BindingFlags.Instance)!; + var descriptor = new AggregatorDescriptor( + MessageType: typeof(object), + AggregatorBaseType: typeof(object), + AggregatorName: "post-dispose", + BatchSize: 0, + Timeout: TimeSpan.FromMilliseconds(50), + BuildTypedList: _ => new List(), + InvokeExecuteAsync: (_, _, _) => Task.CompletedTask); + + resetTimerMethod.Invoke(processor, [descriptor]); + + Assert.False(timers.ContainsKey("post-dispose"), + "ResetTimer must not install a Timer after Dispose"); + Assert.Empty(timers); + } + + [Fact] + public async Task DisposeAsync_DrainsConcurrentResetTimer() + { + // Concurrent ResetTimer calls during DisposeAsync must not leak Timers past + // the disposal foreach. Run a tight race and assert _timers is empty after + // both DisposeAsync and the racer return. + var services = new ServiceCollection(); + var provider = services.BuildServiceProvider(); + var registry = new AggregatorRegistry( + [], + provider.GetRequiredService(), + NullLogger.Instance); + var scopeFactory = provider.GetRequiredService(); + var scopeAccessor = new ConsumeScopeAccessor(); + var persistor = Mock.Of(); + + var processor = new AggregatorProcessor( + registry, scopeAccessor, scopeFactory, + NullLogger.Instance, persistor); + + var resetTimerMethod = typeof(AggregatorProcessor).GetMethod( + "ResetTimer", BindingFlags.NonPublic | BindingFlags.Instance)!; + var timers = (ConcurrentDictionary)typeof(AggregatorProcessor) + .GetField("_timers", BindingFlags.NonPublic | BindingFlags.Instance)! + .GetValue(processor)!; + + // Spawn racers that hammer ResetTimer for distinct aggregator names. + var racers = Enumerable.Range(0, 8).Select(i => Task.Run(() => + { + var descriptor = new AggregatorDescriptor( + MessageType: typeof(object), + AggregatorBaseType: typeof(object), + AggregatorName: $"racer-{i}", + BatchSize: 0, + Timeout: TimeSpan.FromMilliseconds(50), + BuildTypedList: _ => new List(), + InvokeExecuteAsync: (_, _, _) => Task.CompletedTask); + + for (var j = 0; j < 50; j++) + { + resetTimerMethod.Invoke(processor, [descriptor]); + } + })).ToArray(); + + // Concurrently dispose. + await processor.DisposeAsync(); + await Task.WhenAll(racers); + + Assert.Empty(timers); + } +} diff --git a/src/ServiceConnect.UnitTests/Processors/AggregatorProcessorSnapshotRemoveCounterTests.cs b/src/ServiceConnect.UnitTests/Processors/AggregatorProcessorSnapshotRemoveCounterTests.cs new file mode 100644 index 000000000..7dc97a699 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Processors/AggregatorProcessorSnapshotRemoveCounterTests.cs @@ -0,0 +1,111 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Diagnostics.Metrics.Testing; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using ServiceConnect.Diagnostics; +using ServiceConnect.Interfaces; +using ServiceConnect.Services; +using ServiceConnect.Services.Processors; +using Xunit; + +namespace ServiceConnect.UnitTests.Processors; + +// Exercises the post-handler RemoveSnapshotAsync failure path inside +// AggregatorProcessor.DispatchResolvedAsync. The framework swallows the persistor +// failure to avoid NACK-driven duplicate handler dispatch; the new counter is the +// operator-visible signal for that otherwise log-only event. +[Collection(SerialConcurrencyCollection.Name)] +public sealed class AggregatorProcessorSnapshotRemoveCounterTests +{ + private static AggregatorSnapshot SnapshotOf(IEnumerable messages, int unresolved = 0) + { + var msgList = messages.ToList(); + var ids = msgList.Select(_ => Guid.NewGuid()).ToList(); + return new AggregatorSnapshot(msgList, ids, unresolved); + } + + private static (ConsumeScopeAccessor accessor, IDisposable scope, IServiceScopeFactory factory) BuildScopeContext(IServiceProvider provider) + { + var accessor = new ConsumeScopeAccessor(); + var scope = accessor.Push(provider); + var factory = provider.GetRequiredService(); + return (accessor, scope, factory); + } + + [Fact] + public async Task SnapshotRemoveFailureAfterDispatch_IncrementsCounter() + { + using var collector = new MetricCollector( + (IServiceProvider?)null, + ServiceConnectMeter.MeterName, + MetricNames.SnapshotRemoveFailedAfterDispatch); + + var message = new SnapshotRemoveTestMessage(Guid.NewGuid()); + var handlerCompleted = new TaskCompletionSource>(); + var aggregator = new SnapshotRemoveTestAggregator(handlerCompleted); + + var persistorMock = new Mock(); + persistorMock.Setup(p => p.InsertDataAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + // BatchSize = 1, so a single inserted message immediately triggers the flush gate. + persistorMock.Setup(p => p.CountResolvedAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(1); + persistorMock.Setup(p => p.GetSnapshotAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(() => SnapshotOf([message])); + // RemoveSnapshotAsync throws AFTER the handler has succeeded — this is the + // window the new counter measures. + persistorMock.Setup(p => p.RemoveSnapshotAsync(It.IsAny(), It.IsAny(), It.IsAny())) + .ThrowsAsync(new InvalidOperationException("Simulated Mongo blip during RemoveSnapshotAsync.")); + persistorMock.Setup(p => p.ReleaseSnapshotAsync(It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var handlerRefs = new List + { + new() { MessageType = typeof(SnapshotRemoveTestMessage), HandlerType = typeof(SnapshotRemoveTestAggregator) } + }; + + var services = new ServiceCollection(); + services.AddSingleton>(handlerRefs); + services.AddSingleton(persistorMock.Object); + services.AddSingleton>(aggregator); + var provider = services.BuildServiceProvider(); + + var registry = new AggregatorRegistry( + handlerRefs, + provider.GetRequiredService(), + NullLogger.Instance); + var (accessor, scopeHandle, scopeFactory) = BuildScopeContext(provider); + using var _scopeGuard = scopeHandle; + await using var processor = new AggregatorProcessor( + registry, accessor, scopeFactory, NullLogger.Instance, persistorMock.Object); + + var headers = new Dictionary(); + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + await processor.ProcessAsync(new byte[] { 1 }, typeof(SnapshotRemoveTestMessage), message, headers, envelope); + + // Confirm the handler did run (otherwise we'd be measuring the wrong code path). + var handlerWait = await Task.WhenAny(handlerCompleted.Task, Task.Delay(2000)); + Assert.Same(handlerCompleted.Task, handlerWait); + + var measurements = collector.GetMeasurementSnapshot(); + Assert.Single(measurements); + Assert.Equal(1L, measurements[0].Value); + } +} + +file sealed class SnapshotRemoveTestMessage(Guid correlationId) : Message(correlationId); + +file sealed class SnapshotRemoveTestAggregator(TaskCompletionSource> tcs) : Aggregator +{ + private readonly TaskCompletionSource> _tcs = tcs; + + public override int BatchSize() => 1; + public override TimeSpan Timeout() => TimeSpan.FromMinutes(5); + + public override Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default) + { + _tcs.TrySetResult(messages); + return Task.CompletedTask; + } +} diff --git a/src/ServiceConnect.UnitTests/Processors/AggregatorProcessorTests.cs b/src/ServiceConnect.UnitTests/Processors/AggregatorProcessorTests.cs new file mode 100644 index 000000000..ac1cc054c --- /dev/null +++ b/src/ServiceConnect.UnitTests/Processors/AggregatorProcessorTests.cs @@ -0,0 +1,1231 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Services; +using ServiceConnect.Services.Processors; +using ServiceConnect.UnitTests; +using Xunit; + +namespace ServiceConnect.UnitTests.Processors; + +[Collection(SerialConcurrencyCollection.Name)] +public class AggregatorProcessorTests +{ + private static AggregatorSnapshot SnapshotOf(IEnumerable messages, int unresolved = 0) + { + var msgList = messages.ToList(); + var ids = msgList.Select(_ => Guid.NewGuid()).ToList(); + return new AggregatorSnapshot(msgList, ids, unresolved); + } + + private static (ConsumeScopeAccessor accessor, IDisposable scope, IServiceScopeFactory factory) BuildScopeContext(IServiceProvider provider) + { + var accessor = new ConsumeScopeAccessor(); + var scope = accessor.Push(provider); + var factory = provider.GetRequiredService(); + return (accessor, scope, factory); + } + + [Fact] + public async Task ProcessAsync_NoAggregator_ReturnsNotHandled() + { + var services = new ServiceCollection(); + services.AddSingleton>([]); + var provider = services.BuildServiceProvider(); + + var registry = new AggregatorRegistry( + [], + provider.GetRequiredService(), + NullLogger.Instance); + var (accessor, scopeHandle, scopeFactory) = BuildScopeContext(provider); + using var _scopeAgg = scopeHandle; + var processor = new AggregatorProcessor(registry, accessor, scopeFactory, NullLogger.Instance); + + var msg = new AggTestMessage(Guid.NewGuid()) { Value = "test" }; + var headers = new Dictionary(); + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + var result = await processor.ProcessAsync(new byte[] { 1 }, typeof(AggTestMessage), msg, headers, envelope); + + Assert.Equal(ProcessResult.NotHandled, result); + } + + [Fact] + public async Task ProcessAsync_BatchComplete_ExecutesAggregator() + { + var messages = new List + { + new(Guid.NewGuid()) { Value = "A" }, + new(Guid.NewGuid()) { Value = "B" }, + new(Guid.NewGuid()) { Value = "C" }, + }; + + var tcs = new TaskCompletionSource>(); + var aggregator = new AggTestAggregator(tcs); + + var insertCount = 0; + var persistorMock = new Mock(); + persistorMock.Setup(p => p.InsertDataAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + persistorMock.Setup(p => p.CountResolvedAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(() => ++insertCount); + persistorMock.Setup(p => p.GetSnapshotAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(() => SnapshotOf(messages)); + persistorMock.Setup(p => p.RemoveSnapshotAsync(It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var handlerRefs = new List + { + new() + { + MessageType = typeof(AggTestMessage), + HandlerType = typeof(AggTestAggregator), + } + }; + + var services = new ServiceCollection(); + services.AddSingleton>(handlerRefs); + services.AddSingleton(persistorMock.Object); + services.AddSingleton>(aggregator); + var provider = services.BuildServiceProvider(); + + var registry = new AggregatorRegistry(handlerRefs, provider.GetRequiredService(), NullLogger.Instance); + var (accessor, scopeHandle, scopeFactory) = BuildScopeContext(provider); + using var _scopeAgg = scopeHandle; + await using var processor = new AggregatorProcessor(registry, accessor, scopeFactory, NullLogger.Instance, persistorMock.Object); + var headers = new Dictionary(); + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + ProcessResult result = ProcessResult.NotHandled; + foreach (var msg in messages) + { + result = await processor.ProcessAsync(new byte[] { 1 }, typeof(AggTestMessage), msg, headers, envelope); + } + + Assert.Equal(ProcessResult.Handled, result); + + var executedMessages = await Task.WhenAny(tcs.Task, Task.Delay(2000)) == tcs.Task + ? await tcs.Task + : null; + + Assert.NotNull(executedMessages); + Assert.Equal(3, executedMessages!.Count); + Assert.Equal("A", executedMessages[0].Value); + Assert.Equal("B", executedMessages[1].Value); + Assert.Equal("C", executedMessages[2].Value); + } + + [Fact] + public async Task FlushAggregator_CallsRemoveSnapshotAsync_NotPerMessageRemove() + { + var messages = new List + { + new(Guid.NewGuid()) { Value = "A" }, + new(Guid.NewGuid()) { Value = "B" }, + new(Guid.NewGuid()) { Value = "C" }, + }; + + var tcs = new TaskCompletionSource>(); + var aggregator = new AggTestAggregator(tcs); + + var insertCount = 0; + var persistorMock = new Mock(); + persistorMock.Setup(p => p.InsertDataAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + persistorMock.Setup(p => p.CountResolvedAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(() => ++insertCount); + persistorMock.Setup(p => p.GetSnapshotAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(() => SnapshotOf(messages)); + persistorMock.Setup(p => p.RemoveSnapshotAsync(It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var handlerRefs = new List + { + new() { MessageType = typeof(AggTestMessage), HandlerType = typeof(AggTestAggregator) } + }; + + var services = new ServiceCollection(); + services.AddSingleton>(handlerRefs); + services.AddSingleton(persistorMock.Object); + services.AddSingleton>(aggregator); + var provider = services.BuildServiceProvider(); + + var registry = new AggregatorRegistry(handlerRefs, provider.GetRequiredService(), NullLogger.Instance); + var (accessor, scopeHandle, scopeFactory) = BuildScopeContext(provider); + using var _scopeAgg = scopeHandle; + await using var processor = new AggregatorProcessor(registry, accessor, scopeFactory, NullLogger.Instance, persistorMock.Object); + var headers = new Dictionary(); + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + foreach (var msg in messages) + { + await processor.ProcessAsync(new byte[] { 1 }, typeof(AggTestMessage), msg, headers, envelope); + } + + persistorMock.Verify(p => p.RemoveSnapshotAsync(It.IsAny(), It.IsAny(), It.IsAny()), Times.Once); + persistorMock.Verify(p => p.RemoveAllAsync(It.IsAny(), It.IsAny()), Times.Never); + persistorMock.Verify(p => p.RemoveDataAsync(It.IsAny(), It.IsAny(), It.IsAny()), Times.Never); + } + + [Fact] + public async Task FlushAggregator_InvokesExecuteBeforeRemovingSnapshot() + { + // Execute must run before RemoveSnapshotAsync. Removing first means a handler + // exception drops the batch permanently; keeping the snapshot until after a + // successful execute preserves it for redelivery on failure. + var messages = new List + { + new(Guid.NewGuid()) { Value = "A" }, + new(Guid.NewGuid()) { Value = "B" }, + new(Guid.NewGuid()) { Value = "C" }, + }; + + var callOrder = new List(); + var executed = new TaskCompletionSource>(); + var aggregator = new OrderRecordingAggregator(callOrder, executed); + + var insertCount = 0; + var persistorMock = new Mock(); + persistorMock.Setup(p => p.InsertDataAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + persistorMock.Setup(p => p.CountResolvedAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(() => ++insertCount); + persistorMock.Setup(p => p.GetSnapshotAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(() => SnapshotOf(messages)); + persistorMock.Setup(p => p.RemoveSnapshotAsync(It.IsAny(), It.IsAny(), It.IsAny())) + .Callback(() => callOrder.Add("remove")) + .Returns(Task.CompletedTask); + + var handlerRefs = new List + { + new() { MessageType = typeof(AggTestMessage), HandlerType = typeof(OrderRecordingAggregator) } + }; + + var services = new ServiceCollection(); + services.AddSingleton>(handlerRefs); + services.AddSingleton(persistorMock.Object); + services.AddSingleton>(aggregator); + var provider = services.BuildServiceProvider(); + + var registry = new AggregatorRegistry(handlerRefs, provider.GetRequiredService(), NullLogger.Instance); + var (accessor, scopeHandle, scopeFactory) = BuildScopeContext(provider); + using var _scopeAgg = scopeHandle; + await using var processor = new AggregatorProcessor(registry, accessor, scopeFactory, NullLogger.Instance, persistorMock.Object); + var headers = new Dictionary(); + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + foreach (var msg in messages) + { + await processor.ProcessAsync(new byte[] { 1 }, typeof(AggTestMessage), msg, headers, envelope); + } + + var waited = await Task.WhenAny(executed.Task, Task.Delay(2000)); + Assert.Same(executed.Task, waited); + Assert.Equal(new[] { "execute", "remove" }, callOrder); + } + + [Fact] + public async Task FlushAggregator_WithUnresolvedRecords_DoesNotDispatchOrDeleteWhenNoResolved() + { + // When every buffered record has an unresolvable type, nothing is + // dispatched AND nothing is deleted — the unresolved records must + // survive for a later attempt once the types become resolvable. + var persistorMock = new Mock(); + persistorMock.Setup(p => p.InsertDataAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + // Under the resolved-aware gate, an unresolved-only buffer reports + // CountResolvedAsync = 0; the gate does not fire, GetSnapshotAsync is never + // consulted, and (correctly) no dispatch or delete occurs. Pre-fix this scenario + // entered FlushAggregatorAsync and short-circuited on an empty ResolvedMessages + // list — same outward behaviour, but each message paid the lock + snapshot cost. + persistorMock.Setup(p => p.CountResolvedAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(0); + + var tcs = new TaskCompletionSource>(); + var aggregator = new AggTestAggregator(tcs); + var handlerRefs = new List + { + new() { MessageType = typeof(AggTestMessage), HandlerType = typeof(AggTestAggregator) } + }; + + var services = new ServiceCollection(); + services.AddSingleton>(handlerRefs); + services.AddSingleton(persistorMock.Object); + services.AddSingleton>(aggregator); + var provider = services.BuildServiceProvider(); + + var registry = new AggregatorRegistry(handlerRefs, provider.GetRequiredService(), NullLogger.Instance); + var (accessor, scopeHandle, scopeFactory) = BuildScopeContext(provider); + using var _scopeAgg = scopeHandle; + await using var processor = new AggregatorProcessor(registry, accessor, scopeFactory, NullLogger.Instance, persistorMock.Object); + var headers = new Dictionary(); + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + await processor.ProcessAsync(new byte[] { 1 }, typeof(AggTestMessage), + new AggTestMessage(Guid.NewGuid()) { Value = "X" }, headers, envelope); + + Assert.False(tcs.Task.IsCompleted); // aggregator never ran + persistorMock.Verify(p => p.RemoveSnapshotAsync(It.IsAny(), It.IsAny(), It.IsAny()), Times.Never); + persistorMock.Verify(p => p.RemoveAllAsync(It.IsAny(), It.IsAny()), Times.Never); + } + + [Fact] + public async Task FlushAggregator_WithResolvedAndUnresolved_DispatchesResolvedAndPreservesUnresolved() + { + // A flush containing both resolved and unresolved items must dispatch + // the resolved ones and call RemoveSnapshotAsync, which only deletes the + // ids captured in the snapshot so the unresolved records remain buffered. + var messages = new List + { + new(Guid.NewGuid()) { Value = "A" }, + new(Guid.NewGuid()) { Value = "B" }, + new(Guid.NewGuid()) { Value = "C" }, + }; + + var tcs = new TaskCompletionSource>(); + var aggregator = new AggTestAggregator(tcs); + + var insertCount = 0; + var persistorMock = new Mock(); + persistorMock.Setup(p => p.InsertDataAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + persistorMock.Setup(p => p.CountResolvedAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(() => ++insertCount); + persistorMock.Setup(p => p.GetSnapshotAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(() => SnapshotOf(messages, unresolved: 1)); + persistorMock.Setup(p => p.RemoveSnapshotAsync(It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var handlerRefs = new List + { + new() { MessageType = typeof(AggTestMessage), HandlerType = typeof(AggTestAggregator) } + }; + + var services = new ServiceCollection(); + services.AddSingleton>(handlerRefs); + services.AddSingleton(persistorMock.Object); + services.AddSingleton>(aggregator); + var provider = services.BuildServiceProvider(); + + var registry = new AggregatorRegistry(handlerRefs, provider.GetRequiredService(), NullLogger.Instance); + var (accessor, scopeHandle, scopeFactory) = BuildScopeContext(provider); + using var _scopeAgg = scopeHandle; + await using var processor = new AggregatorProcessor(registry, accessor, scopeFactory, NullLogger.Instance, persistorMock.Object); + var headers = new Dictionary(); + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + foreach (var msg in messages) + { + await processor.ProcessAsync(new byte[] { 1 }, typeof(AggTestMessage), msg, headers, envelope); + } + + var executed = await tcs.Task.WaitAsync(TimeSpan.FromSeconds(2)); + Assert.Equal(3, executed.Count); + // Only RemoveSnapshotAsync — never RemoveAllAsync — so the unresolved record is preserved. + persistorMock.Verify(p => p.RemoveSnapshotAsync(It.IsAny(), It.IsAny(), It.IsAny()), Times.AtLeastOnce); + persistorMock.Verify(p => p.RemoveAllAsync(It.IsAny(), It.IsAny()), Times.Never); + } + + [Fact] + public async Task DisposeAsync_CancelsInFlightFlush() + { + // Dispose should cancel in-flight flushes via CancellationTokenSource. + var flushStarted = new TaskCompletionSource(); + var flushCanProceed = new TaskCompletionSource(); + + var persistorMock = new Mock(); + persistorMock.Setup(p => p.InsertDataAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + persistorMock.Setup(p => p.CountResolvedAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(3); + persistorMock.Setup(p => p.GetSnapshotAsync(It.IsAny(), It.IsAny())) + .Returns(async (_, ct) => + { + flushStarted.TrySetResult(); + await flushCanProceed.Task.WaitAsync(ct); + return SnapshotOf( + [ + new AggTestMessage(Guid.NewGuid()) { Value = "A" }, + new AggTestMessage(Guid.NewGuid()) { Value = "B" }, + new AggTestMessage(Guid.NewGuid()) { Value = "C" }, + ]); + }); + persistorMock.Setup(p => p.RemoveSnapshotAsync(It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var tcs = new TaskCompletionSource>(); + var aggregator = new AggTestAggregator(tcs); + var handlerRefs = new List + { + new() { MessageType = typeof(AggTestMessage), HandlerType = typeof(AggTestAggregator) } + }; + + var services = new ServiceCollection(); + services.AddSingleton>(handlerRefs); + services.AddSingleton(persistorMock.Object); + services.AddSingleton>(aggregator); + var provider = services.BuildServiceProvider(); + + var registry = new AggregatorRegistry(handlerRefs, provider.GetRequiredService(), NullLogger.Instance); + var (accessor, scopeHandle, scopeFactory) = BuildScopeContext(provider); + using var _scopeAgg = scopeHandle; + var processor = new AggregatorProcessor(registry, accessor, scopeFactory, NullLogger.Instance, persistorMock.Object); + + var headers = new Dictionary(); + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + var processTask = processor.ProcessAsync(new byte[] { 1 }, typeof(AggTestMessage), + new AggTestMessage(Guid.NewGuid()) { Value = "X" }, headers, envelope); + + await flushStarted.Task.WaitAsync(TimeSpan.FromSeconds(5)); + + await processor.DisposeAsync(); + + var ex = await Record.ExceptionAsync(async () => await processTask); + Assert.True(ex is null or OperationCanceledException or ObjectDisposedException, + $"Expected null, OperationCanceledException, or ObjectDisposedException but got: {ex?.GetType().Name}: {ex?.Message}"); + } + + [Fact] + public async Task DisposeAsync_CanBeCalledMultipleTimes() + { + var services = new ServiceCollection(); + services.AddSingleton>([]); + var provider = services.BuildServiceProvider(); + + var registry = new AggregatorRegistry([], provider.GetRequiredService(), NullLogger.Instance); + var (accessor, scopeHandle, scopeFactory) = BuildScopeContext(provider); + using var _scopeAgg = scopeHandle; + var processor = new AggregatorProcessor(registry, accessor, scopeFactory, NullLogger.Instance); + + await processor.DisposeAsync(); + await processor.DisposeAsync(); + } + + [Fact] + public async Task InsertDuringFlush_LateMessageNotWiped() + { + // A message inserted after the snapshot is captured but before + // RemoveSnapshotAsync runs must survive the flush: RemoveSnapshotAsync + // only deletes the specific ids captured in the snapshot, not the + // whole aggregator buffer. + var persistor = new ServiceConnect.Persistence.InMemory.InMemoryAggregatorPersistor(); + const string name = "agg-race"; + + var initial = new[] + { + new AggTestMessage(Guid.NewGuid()) { Value = "a1" }, + new AggTestMessage(Guid.NewGuid()) { Value = "a2" }, + new AggTestMessage(Guid.NewGuid()) { Value = "a3" }, + }; + foreach (var m in initial) + { + await persistor.InsertDataAsync(m, name, Guid.NewGuid().ToString()); + } + + var snapshot = await persistor.GetSnapshotAsync(name); + + // Simulate a concurrent insert that arrives *after* the snapshot but *before* + // the remove — this is the race the plan's snapshot API is designed to close. + var late = new AggTestMessage(Guid.NewGuid()) { Value = "late" }; + await persistor.InsertDataAsync(late, name, Guid.NewGuid().ToString()); + + await persistor.RemoveSnapshotAsync(name, snapshot); + + var remaining = await persistor.GetDataAsync(name); + Assert.Single(remaining); + // In-memory persistor deep-clones on insert/retrieve, so identity differs; compare + // by correlation id and payload instead. + var survivor = Assert.IsType(remaining[0]); + Assert.Equal(late.CorrelationId, survivor.CorrelationId); + Assert.Equal(late.Value, survivor.Value); + } + + [Fact] + public async Task InsertDuringFlush_MoqCallback_LateMessageSurvivesRemoveSnapshot() + { + // Verifies the snapshot-remove pattern: a message inserted between + // GetSnapshotAsync and RemoveSnapshotAsync must not be wiped, because + // RemoveSnapshotAsync only removes the ids captured in the snapshot. + // Uses Moq callbacks to simulate the concurrent insert deterministically. + + var initial = new List + { + new(Guid.NewGuid()) { Value = "a1" }, + new(Guid.NewGuid()) { Value = "a2" }, + new(Guid.NewGuid()) { Value = "a3" }, + }; + + var lateMessage = new AggTestMessage(Guid.NewGuid()) { Value = "late" }; + var lateId = Guid.NewGuid(); + + // Track what RemoveSnapshotAsync receives so we can verify the late message id is NOT in it. + IAggregatorSnapshot? capturedSnapshot = null; + + var insertCount = 0; + var persistorMock = new Mock(); + persistorMock.Setup(p => p.InsertDataAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + persistorMock.Setup(p => p.CountResolvedAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(() => ++insertCount); + + // GetSnapshotAsync callback simulates a concurrent insert arriving between snapshot and remove. + persistorMock.Setup(p => p.GetSnapshotAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(() => + { + // The snapshot captures only the initial 3 messages. + var ids = initial.Select(_ => Guid.NewGuid()).ToList(); + return (IAggregatorSnapshot)new AggregatorSnapshot([.. initial.Cast()], ids, 0); + // NOTE: the late message is NOT in this snapshot — it would be inserted + // by a concurrent producer between snapshot and remove. + }); + + persistorMock.Setup(p => p.RemoveSnapshotAsync(It.IsAny(), It.IsAny(), It.IsAny())) + .Callback((_, snap, _) => capturedSnapshot = snap) + .Returns(Task.CompletedTask); + + var tcs = new TaskCompletionSource>(); + var aggregator = new AggTestAggregator(tcs); + var handlerRefs = new List + { + new() { MessageType = typeof(AggTestMessage), HandlerType = typeof(AggTestAggregator) } + }; + + var services = new ServiceCollection(); + services.AddSingleton>(handlerRefs); + services.AddSingleton(persistorMock.Object); + services.AddSingleton>(aggregator); + var provider = services.BuildServiceProvider(); + + var registry = new AggregatorRegistry(handlerRefs, provider.GetRequiredService(), NullLogger.Instance); + var (accessor, scopeHandle, scopeFactory) = BuildScopeContext(provider); + using var _scopeAgg = scopeHandle; + await using var processor = new AggregatorProcessor(registry, accessor, scopeFactory, NullLogger.Instance, persistorMock.Object); + var headers = new Dictionary(); + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + // Send exactly BatchSize (3) messages to trigger a flush. + foreach (var msg in initial) + { + await processor.ProcessAsync(new byte[] { 1 }, typeof(AggTestMessage), msg, headers, envelope); + } + + // Aggregator must have run with the 3 initial messages. + var executed = await tcs.Task.WaitAsync(TimeSpan.FromSeconds(2)); + Assert.Equal(3, executed.Count); + + // RemoveSnapshotAsync must have been called exactly once. + persistorMock.Verify(p => p.RemoveSnapshotAsync( + It.IsAny(), It.IsAny(), It.IsAny()), Times.Once); + + // The snapshot passed to RemoveSnapshotAsync must NOT contain the late message's id. + // (The late message id was never inserted into the snapshot, confirming the contract + // that RemoveSnapshotAsync only removes what was snapshotted — not any later arrivals.) + Assert.NotNull(capturedSnapshot); + Assert.DoesNotContain(lateId, capturedSnapshot!.ResolvedIds); + + // RemoveAllAsync must never be called (that would wipe late inserts). + persistorMock.Verify(p => p.RemoveAllAsync(It.IsAny(), It.IsAny()), Times.Never); + } + + [Fact] + public async Task DisposeAsync_WithLateTimerCallback_DoesNotRecreateFlushLock() + { + // OnTimerFired is gated on Volatile.Read(ref _disposed); a callback that fires after + // DisposeAsync has cleared _flushLocks must return before touching any state. Without + // the gate, FlushAggregatorAsync's _flushLocks.GetOrAdd(...) would re-create a + // SemaphoreSlim in a dictionary that is never read again — a bounded leak. + // + // White-box approach: manually set _disposed=1 via reflection (WITHOUT calling + // DisposeAsync so _disposeCts remains live and FlushAggregatorAsync can reach + // _flushLocks.GetOrAdd), then call OnTimerFired directly and wait briefly for any + // spawned background task to complete. The expectation is _flushLocks stays empty — + // OnTimerFired returns immediately on the disposed guard. + + var getSnapshotCalled = new TaskCompletionSource(); + var persistorMock = new Mock(); + persistorMock.Setup(p => p.InsertDataAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + persistorMock.Setup(p => p.CountAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(1); + // GetSnapshotAsync signals when the flush lock has been acquired (i.e. GetOrAdd ran). + persistorMock.Setup(p => p.GetSnapshotAsync(It.IsAny(), It.IsAny())) + .Returns((_, _) => + { + getSnapshotCalled.TrySetResult(); + return Task.FromResult(AggregatorSnapshot.Empty); + }); + persistorMock.Setup(p => p.RemoveSnapshotAsync(It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var tcs = new TaskCompletionSource>(); + var aggregator = new AggTestTimedAggregator(tcs); + var handlerRefs = new List + { + new() { MessageType = typeof(AggTestMessage), HandlerType = typeof(AggTestTimedAggregator) } + }; + + var services = new ServiceCollection(); + services.AddSingleton>(handlerRefs); + services.AddSingleton(persistorMock.Object); + services.AddSingleton>(aggregator); + var provider = services.BuildServiceProvider(); + + var registry = new AggregatorRegistry(handlerRefs, provider.GetRequiredService(), NullLogger.Instance); + var (accessor, scopeHandle, scopeFactory) = BuildScopeContext(provider); + using var _scopeAgg = scopeHandle; + await using var processor = new AggregatorProcessor(registry, accessor, scopeFactory, NullLogger.Instance, persistorMock.Object); + + // Retrieve private fields / methods via reflection. + var processorType = typeof(AggregatorProcessor); + var disposedField = processorType.GetField("_disposed", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance)!; + var flushLocksField = processorType.GetField("_flushLocks", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance)!; + var onTimerFiredMethod = processorType.GetMethod("OnTimerFired", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance)!; + + var flushLocks = (System.Collections.Concurrent.ConcurrentDictionary)flushLocksField.GetValue(processor)!; + + // Retrieve the descriptor for AggTestMessage (Timeout-based, not BatchSize-based). + var registryType = typeof(AggregatorRegistry); + var descriptorsField = registryType.GetField("_descriptors", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance)!; + var descriptors = descriptorsField.GetValue(registry)!; + var descriptor = (AggregatorDescriptor)((System.Collections.Generic.IEnumerable>)descriptors) + .First(kvp => kvp.Key == typeof(AggTestMessage)).Value; + + // Manually mark disposed without calling DisposeAsync — this preserves _disposeCts + // so that _disposeCts.Token is accessible (not thrown) when RunFlushAsync runs. + // This replicates the exact window: DisposeAsync has set _disposed but hasn't yet + // called _disposeCts.Cancel() / _flushLocks.Clear(). + disposedField.SetValue(processor, 1); + + // _flushLocks should still be populated (we haven't cleared it). + // The processor is fully live at this point except _disposed=1. + + // Simulate a late timer callback: call OnTimerFired with _disposed already set. + onTimerFiredMethod.Invoke(processor, [descriptor]); + + // Give the background RunFlushAsync task time to run if the guard is missing. + // Expected: OnTimerFired returns immediately on the disposed guard and _flushLocks + // stays empty; without the guard, RunFlushAsync would call FlushAggregatorAsync → + // GetOrAdd and a stray entry would land in the dictionary. + await Task.Delay(200); + + // Assert: _flushLocks must be empty — the late callback must not have created any entry. + Assert.Empty(flushLocks); + } + + [Fact] + public async Task TimerReuse_DoesNotAllocateNewTimerPerMessage() + { + var flushCount = 0; + var flushTcs = new TaskCompletionSource(); + + var persistorMock = new Mock(); + persistorMock.Setup(p => p.InsertDataAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + persistorMock.Setup(p => p.CountAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(1); + persistorMock.Setup(p => p.GetSnapshotAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(() => + { + Interlocked.Increment(ref flushCount); + flushTcs.TrySetResult(); + return AggregatorSnapshot.Empty; + }); + persistorMock.Setup(p => p.RemoveSnapshotAsync(It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var tcs = new TaskCompletionSource>(); + var aggregator = new AggTestTimedAggregator(tcs); + var handlerRefs = new List + { + new() { MessageType = typeof(AggTestMessage), HandlerType = typeof(AggTestTimedAggregator) } + }; + + var services = new ServiceCollection(); + services.AddSingleton>(handlerRefs); + services.AddSingleton(persistorMock.Object); + services.AddSingleton>(aggregator); + var provider = services.BuildServiceProvider(); + + var registry = new AggregatorRegistry(handlerRefs, provider.GetRequiredService(), NullLogger.Instance); + var (accessor, scopeHandle, scopeFactory) = BuildScopeContext(provider); + using var _scopeAgg = scopeHandle; + await using var processor = new AggregatorProcessor(registry, accessor, scopeFactory, NullLogger.Instance, persistorMock.Object); + var headers = new Dictionary(); + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + for (int i = 0; i < 5; i++) + { + await processor.ProcessAsync(new byte[] { 1 }, typeof(AggTestMessage), + new AggTestMessage(Guid.NewGuid()) { Value = $"msg-{i}" }, headers, envelope); + await Task.Delay(50); + } + + await flushTcs.Task.WaitAsync(TimeSpan.FromSeconds(5)); + + Assert.Equal(1, flushCount); + } + + [Fact] + public async Task RunFlushAsync_AfterDispose_DoesNotLogSpuriousObjectDisposedException() + { + // Race: OnTimerFired passes the `_disposed` fast-path guard (because the timer callback + // was scheduled BEFORE DisposeAsync set the flag), then loses the race with DisposeAsync + // to dispose `_disposeCts`. The first act of RunFlushAsync is + // `FlushAggregatorAsync(descriptor, _disposeCts.Token)` — evaluating the Token on a + // disposed CancellationTokenSource throws ObjectDisposedException. RunFlushAsync must + // recognise this race and stay quiet rather than escalating it through `logger.LogError`, + // which would emit a spurious ERROR entry during otherwise-clean shutdown. + // + // Deterministic reproduction: fully dispose the processor (so `_disposed=1` AND + // `_disposeCts` is disposed — exactly the state a losing timer callback sees at the + // Token-access point), then invoke RunFlushAsync directly via reflection. This + // bypasses OnTimerFired's guard (already "passed" in the real race) and exercises + // RunFlushAsync's failure mode in isolation. + + var capturingLogger = new AptCapturingLogger(); + var persistorMock = new Mock(); + persistorMock.Setup(p => p.GetSnapshotAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(AggregatorSnapshot.Empty); + persistorMock.Setup(p => p.RemoveSnapshotAsync(It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var handlerRefs = new List + { + new() { MessageType = typeof(AggTestMessage), HandlerType = typeof(AggTestTimedAggregator) } + }; + var services = new ServiceCollection(); + services.AddSingleton>(handlerRefs); + services.AddSingleton(persistorMock.Object); + services.AddSingleton>(new AggTestTimedAggregator(new TaskCompletionSource>())); + var provider = services.BuildServiceProvider(); + + var registry = new AggregatorRegistry(handlerRefs, provider.GetRequiredService(), NullLogger.Instance); + var (accessor, scopeHandle, scopeFactory) = BuildScopeContext(provider); + using var _scopeAgg = scopeHandle; + var processor = new AggregatorProcessor(registry, accessor, scopeFactory, capturingLogger, persistorMock.Object); + + // Fully dispose — _disposed=1, _disposeCts disposed. Realistic post-race state. + await processor.DisposeAsync(); + + // Fetch the descriptor for AggTestMessage. + var registryType = typeof(AggregatorRegistry); + var descriptorsField = registryType.GetField("_descriptors", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance)!; + var descriptors = descriptorsField.GetValue(registry)!; + var descriptor = (AggregatorDescriptor)((IEnumerable>)descriptors) + .First(kvp => kvp.Key == typeof(AggTestMessage)).Value; + + // Invoke RunFlushAsync directly. Bypasses OnTimerFired's guard (same effect as the + // real race where that guard had already passed). RunFlushAsync is private → reflection. + var processorType = typeof(AggregatorProcessor); + var runFlushMethod = processorType.GetMethod("RunFlushAsync", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance)!; + var tcs = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var runTask = (Task)runFlushMethod.Invoke(processor, [42, tcs, descriptor])!; + await runTask; + + // RunFlushAsync must catch the race quietly, no ERROR logged. If the ODE from + // `_disposeCts.Token` were allowed to fall through into catch (Exception), an + // ERROR entry would land here. + var odeErrors = capturingLogger.Entries + .Where(e => e.Level == LogLevel.Error && e.Exception is ObjectDisposedException) + .ToList(); + Assert.Empty(odeErrors); + } + + [Fact] + public async Task FlushAggregatorAsync_HandlerThrows_SnapshotRemainsForRetry() + { + // If the handler throws a non-cancellation exception, the snapshot must not have + // been removed yet — the messages stay in the persistor so the broker can redeliver + // and the batch is re-flushable on the next admission. + var persistor = new ServiceConnect.Persistence.InMemory.InMemoryAggregatorPersistor(); + + var throwingAggregator = new ThrowingAggregator(); + var handlerRefs = new List + { + new() { MessageType = typeof(AggTestMessage), HandlerType = typeof(ThrowingAggregator) } + }; + + var services = new ServiceCollection(); + services.AddSingleton>(handlerRefs); + services.AddSingleton(persistor); + services.AddSingleton>(throwingAggregator); + var provider = services.BuildServiceProvider(); + + var registry = new AggregatorRegistry(handlerRefs, provider.GetRequiredService(), NullLogger.Instance); + var (accessor, scopeHandle, scopeFactory) = BuildScopeContext(provider); + using var _scopeAgg = scopeHandle; + await using var processor = new AggregatorProcessor(registry, accessor, scopeFactory, NullLogger.Instance, persistor); + + var headers = new Dictionary(); + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + // BatchSize=3: the first two messages are buffered; the third triggers a synchronous + // flush. The handler throws, so the test expects an exception from ProcessAsync. + var messages = new[] + { + new AggTestMessage(Guid.NewGuid()) { Value = "x1" }, + new AggTestMessage(Guid.NewGuid()) { Value = "x2" }, + new AggTestMessage(Guid.NewGuid()) { Value = "x3" }, + }; + await processor.ProcessAsync(new byte[] { 1 }, typeof(AggTestMessage), messages[0], headers, envelope); + await processor.ProcessAsync(new byte[] { 1 }, typeof(AggTestMessage), messages[1], headers, envelope); + + await Assert.ThrowsAsync(() => + processor.ProcessAsync(new byte[] { 1 }, typeof(AggTestMessage), messages[2], headers, envelope)); + + // AggregatorName is derived from the concrete handler type's FullName (not the closed + // generic base), so derive the stream name the same way. + var streamName = typeof(ThrowingAggregator).FullName!; + + // The messages must still be in the persistor so they can be retried. + var remaining = await persistor.CountAsync(streamName); + Assert.Equal(messages.Length, remaining); + } + + [Fact] + public async Task ProcessAsync_AfterDispose_ThrowsObjectDisposedExceptionWithoutTouchingDisposedCts() + { + // Verify that calling ProcessAsync on a disposed processor fails fast with + // ObjectDisposedException rather than reaching _disposeCts.Token (which would + // be disposed and throw an unrelated ODE from the linked-CTS construction). + // BatchSize=1 ensures the batch path is taken on the first message, so the + // dispose guard inside the batch block is also exercised. + var handlerRefs = new List + { + new() { MessageType = typeof(PostDisposeProbeMessage), HandlerType = typeof(PostDisposeProbeAggregator) } + }; + + var aggregator = new PostDisposeProbeAggregator(); + var services = new ServiceCollection(); + services.AddSingleton>(handlerRefs); + services.AddSingleton>(aggregator); + var provider = services.BuildServiceProvider(); + + var registry = new AggregatorRegistry(handlerRefs, provider.GetRequiredService(), NullLogger.Instance); + + var persistorMock = new Mock(); + persistorMock + .Setup(p => p.InsertDataAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + persistorMock + .Setup(p => p.CountAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(1); + + var (accessor, scopeHandle, scopeFactory) = BuildScopeContext(provider); + using var _scopeAgg = scopeHandle; + var processor = new AggregatorProcessor( + registry, accessor, scopeFactory, NullLogger.Instance, persistorMock.Object); + + await processor.DisposeAsync(); + + await Assert.ThrowsAsync(() => + processor.ProcessAsync( + ReadOnlyMemory.Empty, + typeof(PostDisposeProbeMessage), + new PostDisposeProbeMessage(Guid.NewGuid()), + new Dictionary(), + new Envelope { Headers = new Dictionary(), Body = ReadOnlyMemory.Empty }, + CancellationToken.None)); + } + + /// + /// After concurrent ResetTimer calls for the same aggregator, the dictionary must + /// hold exactly one live Timer. ConcurrentDictionary.AddOrUpdate's factory may run + /// multiple times under contention; without single-flight serialisation, losing + /// factory attempts would produce live Timer instances that were never installed + /// in _timers and never disposed. The lock around the create+install pair makes + /// "exactly one Timer per ResetTimer call, previous disposed atomically" the only + /// reachable observable state. + /// + [Fact] + public async Task ResetTimer_ConcurrentCalls_NoOrphanedTimers() + { + var handlerRefs = new List + { + new() { MessageType = typeof(ResetTimerProbeMessage), HandlerType = typeof(ResetTimerProbeAggregator) } + }; + + var aggregator = new ResetTimerProbeAggregator(); + var services = new ServiceCollection(); + services.AddSingleton>(handlerRefs); + services.AddSingleton>(aggregator); + var provider = services.BuildServiceProvider(); + + var registry = new AggregatorRegistry(handlerRefs, provider.GetRequiredService(), NullLogger.Instance); + + var persistorMock = new Mock(); + persistorMock + .Setup(p => p.InsertDataAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + persistorMock + .Setup(p => p.CountAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(1); + + var (accessor, scopeHandle, scopeFactory) = BuildScopeContext(provider); + using var _scopeAgg = scopeHandle; + await using var processor = new AggregatorProcessor( + registry, accessor, scopeFactory, NullLogger.Instance, persistorMock.Object); + + var tasks = Enumerable.Range(0, 64).Select(_ => + processor.ProcessAsync( + ReadOnlyMemory.Empty, + typeof(ResetTimerProbeMessage), + new ResetTimerProbeMessage(Guid.NewGuid()), + new Dictionary(), + new Envelope { Headers = new Dictionary(), Body = ReadOnlyMemory.Empty }, + CancellationToken.None)).ToArray(); + await Task.WhenAll(tasks); + + var timersField = typeof(AggregatorProcessor).GetField("_timers", + System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic); + var timers = (System.Collections.Concurrent.ConcurrentDictionary)timersField!.GetValue(processor)!; + + Assert.Single(timers); + } + + // The batch-path flush must resolve the Aggregator instance from the consume scope + // that is currently active when ProcessAsync runs. The dispatcher pushes a per-message + // scope; without scope-aware resolution, scoped aggregator dependencies leak across + // messages. BatchSize=1 makes ProcessAsync take the synchronous batch-flush path so + // the scope active at call time is the one observed by FlushAggregatorAsync. (The + // timer-fired path runs outside any consume scope and falls back to a fresh scope from + // IServiceScopeFactory; that is a different code path with its own behaviour contract.) + [Fact] + public async Task ProcessAsync_BatchPath_ResolvesAggregatorFromCurrentConsumeScope() + { + var rootAggregator = new ScopeProbeAggregator(); + var scopedAggregator = new ScopeProbeAggregator(); + + var handlerRefs = new List + { + new() { MessageType = typeof(ScopeProbeAggMessage), HandlerType = typeof(ScopeProbeAggregator) } + }; + + var rootServices = new ServiceCollection(); + rootServices.AddSingleton>(handlerRefs); + rootServices.AddSingleton>(rootAggregator); + var rootProvider = rootServices.BuildServiceProvider(); + + var scopedServices = new ServiceCollection(); + scopedServices.AddSingleton>(handlerRefs); + scopedServices.AddSingleton>(scopedAggregator); + var scopedProvider = scopedServices.BuildServiceProvider(); + + // The registry materializes the aggregator once at startup against rootProvider to + // read BatchSize/Timeout — this is fine; only the per-flush resolution needs to be + // scope-aware. + var registry = new AggregatorRegistry(handlerRefs, rootProvider.GetRequiredService(), NullLogger.Instance); + + var probeMessage = new ScopeProbeAggMessage(Guid.NewGuid()); + var persistorMock = new Mock(); + persistorMock.Setup(p => p.InsertDataAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + persistorMock.Setup(p => p.CountResolvedAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(1); + persistorMock.Setup(p => p.GetSnapshotAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(() => SnapshotOf([probeMessage])); + persistorMock.Setup(p => p.RemoveSnapshotAsync(It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var scopeAccessor = new ConsumeScopeAccessor(); + var scopeFactory = rootProvider.GetRequiredService(); + await using var processor = new AggregatorProcessor( + registry, scopeAccessor, scopeFactory, NullLogger.Instance, persistorMock.Object); + + using (scopeAccessor.Push(scopedProvider)) + { + await processor.ProcessAsync( + ReadOnlyMemory.Empty, + typeof(ScopeProbeAggMessage), + probeMessage, + new Dictionary(), + new Envelope { Headers = new Dictionary(), Body = ReadOnlyMemory.Empty }, + CancellationToken.None); + } + + Assert.Equal(0, rootAggregator.Hits); + Assert.Equal(1, scopedAggregator.Hits); + } + + // The Timer captures the dispatcher's ExecutionContext at construction. AsyncLocal + // flows through EC, so when the timer fires the callback observes the dispatcher's + // scope on ConsumeScopeAccessor — but that scope was disposed when ProcessAsync + // returned. The flush must always create a fresh DI scope on the timer path. + [Fact] + public async Task TimerFiredFlush_AlwaysCreatesFreshScope_IgnoresEcCapturedAmbient() + { + var staleAggregator = new EcCaptureProbeAggregator(); + var freshAggregator = new EcCaptureProbeAggregator(); + + var handlerRefs = new List + { + new() { MessageType = typeof(EcCaptureProbeMessage), HandlerType = typeof(EcCaptureProbeAggregator) } + }; + + var staleServices = new ServiceCollection(); + staleServices.AddSingleton>(handlerRefs); + staleServices.AddSingleton>(staleAggregator); + var staleProvider = staleServices.BuildServiceProvider(); + + var freshServices = new ServiceCollection(); + freshServices.AddSingleton>(handlerRefs); + freshServices.AddSingleton>(freshAggregator); + var freshProvider = freshServices.BuildServiceProvider(); + + var registry = new AggregatorRegistry(handlerRefs, freshProvider.GetRequiredService(), NullLogger.Instance); + + var probeMessage = new EcCaptureProbeMessage(Guid.NewGuid()); + var persistorMock = new Mock(); + persistorMock.Setup(p => p.InsertDataAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + // Below batch size so ProcessAsync goes to the timer path, not the immediate flush. + persistorMock.Setup(p => p.CountAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(1); + persistorMock.Setup(p => p.GetSnapshotAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(() => SnapshotOf([probeMessage])); + persistorMock.Setup(p => p.RemoveSnapshotAsync(It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var scopeAccessor = new ConsumeScopeAccessor(); + var freshScopeFactory = freshProvider.GetRequiredService(); + await using var processor = new AggregatorProcessor( + registry, scopeAccessor, freshScopeFactory, NullLogger.Instance, persistorMock.Object); + + using (scopeAccessor.Push(staleProvider)) + { + await processor.ProcessAsync( + ReadOnlyMemory.Empty, + typeof(EcCaptureProbeMessage), + probeMessage, + new Dictionary(), + new Envelope { Headers = new Dictionary(), Body = ReadOnlyMemory.Empty }, + CancellationToken.None); + } + + // Wait up to 2s for the 50ms timer to fire and complete the flush. + var deadline = DateTime.UtcNow + TimeSpan.FromSeconds(2); + while (DateTime.UtcNow < deadline && freshAggregator.Hits == 0 && staleAggregator.Hits == 0) + { + await Task.Delay(20); + } + + Assert.Equal(0, staleAggregator.Hits); + Assert.Equal(1, freshAggregator.Hits); + } + + [Fact] + public async Task FlushAggregator_CancelDuringRemoveSnapshot_ReleasesLeaseBeforeRethrowing() + { + // When RemoveSnapshotAsync throws OCE (token cancelled after handler dispatch + // succeeds), the processor must call ReleaseSnapshotAsync with CancellationToken.None + // before re-throwing so the redelivery's next GetSnapshotAsync can re-claim + // immediately rather than waiting for the lease TTL. + var cts = new CancellationTokenSource(); + + var messages = new List + { + new(Guid.NewGuid()) { Value = "A" }, + new(Guid.NewGuid()) { Value = "B" }, + new(Guid.NewGuid()) { Value = "C" }, + }; + + var releaseCallCount = 0; + var handlerExecuted = false; + + var persistorMock = new Mock(); + persistorMock.Setup(p => p.InsertDataAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var insertCount = 0; + persistorMock.Setup(p => p.CountResolvedAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(() => ++insertCount); + + persistorMock.Setup(p => p.GetSnapshotAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(() => SnapshotOf(messages)); + + // RemoveSnapshotAsync cancels the token and then throws OCE, simulating + // cooperative shutdown arriving mid-cleanup after handler dispatch. + persistorMock.Setup(p => p.RemoveSnapshotAsync(It.IsAny(), It.IsAny(), It.IsAny())) + .Returns((_, _, _) => + { + cts.Cancel(); + return Task.FromCanceled(cts.Token); + }); + + persistorMock.Setup(p => p.ReleaseSnapshotAsync(It.IsAny(), It.IsAny(), It.IsAny())) + .Callback(() => Interlocked.Increment(ref releaseCallCount)) + .Returns(Task.CompletedTask); + + var cancellingAggregator = new CancelOnExecuteAggregator(() => handlerExecuted = true); + var handlerRefs = new List + { + new() { MessageType = typeof(AggTestMessage), HandlerType = typeof(CancelOnExecuteAggregator) } + }; + + var services = new ServiceCollection(); + services.AddSingleton>(handlerRefs); + services.AddSingleton(persistorMock.Object); + services.AddSingleton>(cancellingAggregator); + var provider = services.BuildServiceProvider(); + + var registry = new AggregatorRegistry(handlerRefs, provider.GetRequiredService(), NullLogger.Instance); + var (accessor, scopeHandle, scopeFactory) = BuildScopeContext(provider); + using var _scopeAgg = scopeHandle; + await using var processor = new AggregatorProcessor(registry, accessor, scopeFactory, NullLogger.Instance, persistorMock.Object); + var headers = new Dictionary(); + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + // The first two messages buffer; the third triggers the flush. + // Pass cts.Token so the OCE from RemoveSnapshotAsync propagates as a + // cancellation on the dispatch token. + await processor.ProcessAsync(new byte[] { 1 }, typeof(AggTestMessage), messages[0], headers, envelope, cts.Token); + await processor.ProcessAsync(new byte[] { 1 }, typeof(AggTestMessage), messages[1], headers, envelope, cts.Token); + + var ex = await Record.ExceptionAsync(() => + processor.ProcessAsync(new byte[] { 1 }, typeof(AggTestMessage), messages[2], headers, envelope, cts.Token)); + Assert.IsAssignableFrom(ex); + + Assert.True(handlerExecuted); + // ReleaseSnapshotAsync must be called exactly once on the cancel path. + Assert.Equal(1, Volatile.Read(ref releaseCallCount)); + } +} + +file sealed class ResetTimerProbeMessage(Guid correlationId) : Message(correlationId); + +file sealed class ResetTimerProbeAggregator : Aggregator +{ + public override int BatchSize() => 1000; + public override TimeSpan Timeout() => TimeSpan.FromMilliseconds(50); + public override Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default) + => Task.CompletedTask; +} + +file sealed class AptCapturingLogger : ILogger +{ + public sealed record LogEntry(LogLevel Level, string Message, Exception? Exception); + public List Entries { get; } = []; + + IDisposable? ILogger.BeginScope(TState state) => null; + bool ILogger.IsEnabled(LogLevel logLevel) => true; + + void ILogger.Log(LogLevel logLevel, EventId eventId, TState state, Exception? exception, + Func formatter) + { + Entries.Add(new LogEntry(logLevel, formatter(state, exception), exception)); + } +} + +file class AggTestMessage(Guid correlationId) : Message(correlationId) +{ + public string Value { get; set; } = ""; +} + +file class AggTestAggregator(TaskCompletionSource> tcs) : Aggregator +{ + private readonly TaskCompletionSource> _tcs = tcs; + + public override int BatchSize() => 3; + public override TimeSpan Timeout() => TimeSpan.FromMinutes(5); + + public override Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default) + { + _tcs.TrySetResult(messages); + return Task.CompletedTask; + } +} + +file class OrderRecordingAggregator(List order, TaskCompletionSource> tcs) : Aggregator +{ + private readonly List _order = order; + private readonly TaskCompletionSource> _tcs = tcs; + + public override int BatchSize() => 3; + public override TimeSpan Timeout() => TimeSpan.FromMinutes(5); + + public override Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default) + { + _order.Add("execute"); + _tcs.TrySetResult(messages); + return Task.CompletedTask; + } +} + +file class AggTestTimedAggregator(TaskCompletionSource> tcs) : Aggregator +{ + private readonly TaskCompletionSource> _tcs = tcs; + + public override int BatchSize() => 10000; + public override TimeSpan Timeout() => TimeSpan.FromMilliseconds(200); + + public override Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default) + { + _tcs.TrySetResult(messages); + return Task.CompletedTask; + } +} + +file sealed class PostDisposeProbeMessage(Guid correlationId) : Message(correlationId); + +file sealed class PostDisposeProbeAggregator : Aggregator +{ + public override int BatchSize() => 1; + public override TimeSpan Timeout() => TimeSpan.FromMinutes(5); + public override Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default) + => Task.CompletedTask; +} + +file sealed class ScopeProbeAggMessage(Guid correlationId) : Message(correlationId); + +file sealed class ScopeProbeAggregator : Aggregator +{ + private int _hits; + public int Hits => Volatile.Read(ref _hits); + public override int BatchSize() => 1; + public override TimeSpan Timeout() => TimeSpan.FromMinutes(5); + public override Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default) + { + Interlocked.Increment(ref _hits); + return Task.CompletedTask; + } +} + +file sealed class EcCaptureProbeMessage(Guid correlationId) : Message(correlationId); + +file sealed class EcCaptureProbeAggregator : Aggregator +{ + private int _hits; + public int Hits => Volatile.Read(ref _hits); + public override int BatchSize() => 1000; + public override TimeSpan Timeout() => TimeSpan.FromMilliseconds(50); + public override Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default) + { + Interlocked.Increment(ref _hits); + return Task.CompletedTask; + } +} + +file sealed class ThrowingAggregator : Aggregator +{ + public override int BatchSize() => 3; + public override TimeSpan Timeout() => TimeSpan.FromMinutes(5); + public override Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default) + => throw new InvalidOperationException("handler failure — batch must remain for retry"); +} + +// Records execution and completes without error; cancellation arrives after this +// returns (at the RemoveSnapshotAsync step), not during the handler itself. +file sealed class CancelOnExecuteAggregator(Action onExecute) : Aggregator +{ + public override int BatchSize() => 3; + public override TimeSpan Timeout() => TimeSpan.FromMinutes(5); + + public override Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default) + { + onExecute(); + return Task.CompletedTask; + } +} diff --git a/src/ServiceConnect.UnitTests/Processors/AggregatorProcessorTimerDisposeRaceTests.cs b/src/ServiceConnect.UnitTests/Processors/AggregatorProcessorTimerDisposeRaceTests.cs new file mode 100644 index 000000000..572c27b0d --- /dev/null +++ b/src/ServiceConnect.UnitTests/Processors/AggregatorProcessorTimerDisposeRaceTests.cs @@ -0,0 +1,113 @@ +using System.Collections.Concurrent; +using System.Reflection; +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Services; +using ServiceConnect.Services.Processors; +using Xunit; + +namespace ServiceConnect.UnitTests.Processors; + +public class AggregatorProcessorTimerDisposeRaceTests +{ + [Fact] + public void OnTimerFired_AfterDispose_DoesNotLeakActiveFlushEntry() + { + // Pre-set _disposed so OnTimerFired observes the disposed state immediately + // after its TryAdd. The fix's post-TryAdd re-check must remove the entry + // and complete the tcs as cancelled. + var services = new ServiceCollection(); + var provider = services.BuildServiceProvider(); + var registry = new AggregatorRegistry( + [], + provider.GetRequiredService(), + NullLogger.Instance); + var scopeFactory = provider.GetRequiredService(); + var scopeAccessor = new ConsumeScopeAccessor(); + var persistor = Mock.Of(); + + var processor = new AggregatorProcessor( + registry, scopeAccessor, scopeFactory, + NullLogger.Instance, persistor); + + var disposedField = typeof(AggregatorProcessor).GetField("_disposed", + BindingFlags.NonPublic | BindingFlags.Instance)!; + disposedField.SetValue(processor, 1); + + var activeFlushes = (ConcurrentDictionary)typeof(AggregatorProcessor) + .GetField("_activeFlushes", BindingFlags.NonPublic | BindingFlags.Instance)! + .GetValue(processor)!; + + var onTimerFired = typeof(AggregatorProcessor).GetMethod( + "OnTimerFired", BindingFlags.NonPublic | BindingFlags.Instance)!; + var descriptor = new AggregatorDescriptor( + MessageType: typeof(object), + AggregatorBaseType: typeof(object), + AggregatorName: "race-test", + BatchSize: 0, + Timeout: TimeSpan.FromMilliseconds(50), + BuildTypedList: _ => new List(), + InvokeExecuteAsync: (_, _, _) => Task.CompletedTask); + + // Invoke the timer callback synchronously — same path the real Timer would take. + onTimerFired.Invoke(processor, [descriptor]); + + // The post-TryAdd re-check must have removed the entry. _activeFlushes is empty + // (no leaked registration) and no flush task was started. + Assert.Empty(activeFlushes); + } + + [Fact] + public async Task OnTimerFired_RegistrationVisibleToConcurrentDispose() + { + // Verify the contract: a TryAdd that LANDS before DisposeAsync's snapshot is + // awaited by DisposeAsync. We can't easily prove the race-window is closed in + // a unit test (it's an interleaving), but we CAN prove the happy path: a + // pre-Dispose registration is drained. + var services = new ServiceCollection(); + var provider = services.BuildServiceProvider(); + var registry = new AggregatorRegistry( + [], + provider.GetRequiredService(), + NullLogger.Instance); + var scopeFactory = provider.GetRequiredService(); + var scopeAccessor = new ConsumeScopeAccessor(); + + var flushBlock = new TaskCompletionSource(); + var persistorMock = new Mock(); + persistorMock.Setup(p => p.GetSnapshotAsync(It.IsAny(), It.IsAny())) + .Returns(async (string _, CancellationToken ct) => + { + await flushBlock.Task.WaitAsync(ct).ConfigureAwait(false); + return AggregatorSnapshot.Empty as IAggregatorSnapshot; + }); + + var processor = new AggregatorProcessor( + registry, scopeAccessor, scopeFactory, + NullLogger.Instance, persistorMock.Object); + + var onTimerFired = typeof(AggregatorProcessor).GetMethod( + "OnTimerFired", BindingFlags.NonPublic | BindingFlags.Instance)!; + var descriptor = new AggregatorDescriptor( + MessageType: typeof(object), + AggregatorBaseType: typeof(object), + AggregatorName: "drain-test", + BatchSize: 0, + Timeout: TimeSpan.FromMilliseconds(50), + BuildTypedList: _ => new List(), + InvokeExecuteAsync: (_, _, _) => Task.CompletedTask); + + onTimerFired.Invoke(processor, [descriptor]); + + // The flush is now awaiting flushBlock. DisposeAsync should drain it (cancelling). + var disposeTask = processor.DisposeAsync().AsTask(); + + // Unblock the persistor with cancellation. + flushBlock.TrySetCanceled(); + + // Dispose completes within a bounded window — the registration was drained. + await disposeTask.WaitAsync(TimeSpan.FromSeconds(5)); + } +} diff --git a/src/ServiceConnect.UnitTests/Processors/AggregatorProcessorUnresolvedGateTests.cs b/src/ServiceConnect.UnitTests/Processors/AggregatorProcessorUnresolvedGateTests.cs new file mode 100644 index 000000000..940b2a7bb --- /dev/null +++ b/src/ServiceConnect.UnitTests/Processors/AggregatorProcessorUnresolvedGateTests.cs @@ -0,0 +1,186 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Services; +using ServiceConnect.Services.Processors; +using Xunit; + +namespace ServiceConnect.UnitTests.Processors; + +[Collection(SerialConcurrencyCollection.Name)] +public class AggregatorProcessorUnresolvedGateTests +{ + [Fact] + public async Task ProcessAsync_UnresolvedOnlyBatch_DoesNotTriggerFlush() + { + // Persistor reports CountAsync = 10 but CountResolvedAsync = 0 (all records have + // unresolved CLR types). The processor must NOT acquire the _flushLocks semaphore + // or call GetSnapshotAsync: the batch-size gate must read CountResolvedAsync, so + // an all-unresolved bucket never trips the flush path. + var persistorMock = new Mock(); + persistorMock.Setup(p => p.InsertDataAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + persistorMock.Setup(p => p.CountAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(10); // would trigger gate if read + persistorMock.Setup(p => p.CountResolvedAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(0); // all unresolved — gate must NOT fire + + var aggregator = new AggUnrTestAggregator(batchSize: 5); + var handlerRefs = new List + { + new() { MessageType = typeof(AggUnrTestMessage), HandlerType = typeof(AggUnrTestAggregator) } + }; + var services = new ServiceCollection(); + services.AddSingleton>(handlerRefs); + services.AddSingleton(persistorMock.Object); + services.AddSingleton>(aggregator); + var provider = services.BuildServiceProvider(); + + var registry = new AggregatorRegistry(handlerRefs, + provider.GetRequiredService(), + NullLogger.Instance); + var accessor = new ConsumeScopeAccessor(); + using var _scope = accessor.Push(provider); + var scopeFactory = provider.GetRequiredService(); + + await using var processor = new AggregatorProcessor( + registry, accessor, scopeFactory, NullLogger.Instance, persistorMock.Object); + + var msg = new AggUnrTestMessage(Guid.NewGuid()) { Value = "x" }; + var headers = new Dictionary(); + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + await processor.ProcessAsync(new byte[] { 1 }, typeof(AggUnrTestMessage), msg, headers, envelope); + + // GetSnapshotAsync would only be called if the gate fired. Verify it was NOT. + persistorMock.Verify(p => p.GetSnapshotAsync(It.IsAny(), It.IsAny()), + Times.Never); + // CountAsync must not be consulted by the gate — only CountResolvedAsync. + persistorMock.Verify(p => p.CountAsync(It.IsAny(), It.IsAny()), + Times.Never); + persistorMock.Verify(p => p.CountResolvedAsync(It.IsAny(), It.IsAny()), + Times.Once); + } + + [Fact] + public async Task FlushAsync_ReleasesLease_WhenSnapshotOnlyContainsUnresolved() + { + // Persistor returns a snapshot with no resolved messages but UnresolvedCount > 0. + // The early return at the top of the flush body must call ReleaseSnapshotAsync so + // the persistor's per-snapshot lease (stamped during GetSnapshotAsync) is freed + // immediately rather than held for the full TTL. + var snapshotMessage = new AggUnrTestMessage(Guid.NewGuid()) { Value = "unresolved" }; + var snapshot = new AggregatorSnapshot( + [], // ResolvedMessages — empty + [Guid.NewGuid()], // CorrelationIds + UnresolvedCount: 3); // three unresolvable rows + + var persistorMock = new Mock(); + persistorMock.Setup(p => p.InsertDataAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + persistorMock.Setup(p => p.CountResolvedAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(5); // meets batch threshold so flush fires + persistorMock.Setup(p => p.GetSnapshotAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(snapshot); + persistorMock.Setup(p => p.ReleaseSnapshotAsync(It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var aggregator = new AggUnrTestAggregator(batchSize: 5); + var handlerRefs = new List + { + new() { MessageType = typeof(AggUnrTestMessage), HandlerType = typeof(AggUnrTestAggregator) } + }; + var services = new ServiceCollection(); + services.AddSingleton>(handlerRefs); + services.AddSingleton(persistorMock.Object); + services.AddSingleton>(aggregator); + var provider = services.BuildServiceProvider(); + + var registry = new AggregatorRegistry(handlerRefs, + provider.GetRequiredService(), + NullLogger.Instance); + var accessor = new ConsumeScopeAccessor(); + using var _scope = accessor.Push(provider); + var scopeFactory = provider.GetRequiredService(); + + await using var processor = new AggregatorProcessor( + registry, accessor, scopeFactory, NullLogger.Instance, persistorMock.Object); + + var msg = new AggUnrTestMessage(Guid.NewGuid()) { Value = "x" }; + var headers = new Dictionary(); + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + await processor.ProcessAsync(new byte[] { 1 }, typeof(AggUnrTestMessage), msg, headers, envelope); + + // The empty-resolved early-return must release the lease so unresolved rows are + // not stranded under the lease for the full TTL. + persistorMock.Verify( + p => p.ReleaseSnapshotAsync( + It.IsAny(), + snapshot, + It.IsAny()), + Times.Once); + } + + [Fact] + public async Task ProcessAsync_ResolvedBatchAtThreshold_TriggersFlush() + { + // Sanity check: the resolved-count gate still fires when records are resolvable. + var snapshotMessage = new AggUnrTestMessage(Guid.NewGuid()) { Value = "y" }; + var persistorMock = new Mock(); + persistorMock.Setup(p => p.InsertDataAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + persistorMock.Setup(p => p.CountResolvedAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(5); + persistorMock.Setup(p => p.GetSnapshotAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(new AggregatorSnapshot( + [snapshotMessage], + [Guid.NewGuid()], + UnresolvedCount: 0)); + persistorMock.Setup(p => p.RemoveSnapshotAsync(It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var aggregator = new AggUnrTestAggregator(batchSize: 5); + var handlerRefs = new List + { + new() { MessageType = typeof(AggUnrTestMessage), HandlerType = typeof(AggUnrTestAggregator) } + }; + var services = new ServiceCollection(); + services.AddSingleton>(handlerRefs); + services.AddSingleton(persistorMock.Object); + services.AddSingleton>(aggregator); + var provider = services.BuildServiceProvider(); + + var registry = new AggregatorRegistry(handlerRefs, + provider.GetRequiredService(), + NullLogger.Instance); + var accessor = new ConsumeScopeAccessor(); + using var _scope = accessor.Push(provider); + var scopeFactory = provider.GetRequiredService(); + + await using var processor = new AggregatorProcessor( + registry, accessor, scopeFactory, NullLogger.Instance, persistorMock.Object); + + var msg = new AggUnrTestMessage(Guid.NewGuid()) { Value = "z" }; + var headers = new Dictionary(); + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + await processor.ProcessAsync(new byte[] { 1 }, typeof(AggUnrTestMessage), msg, headers, envelope); + + persistorMock.Verify(p => p.GetSnapshotAsync(It.IsAny(), It.IsAny()), + Times.Once); + } +} + +file sealed class AggUnrTestMessage(Guid corrId) : Message(corrId) +{ + public string? Value { get; set; } +} + +file sealed class AggUnrTestAggregator(int batchSize) : Aggregator +{ + private readonly int _batchSize = batchSize; + + public override int BatchSize() => _batchSize; + public override TimeSpan Timeout() => TimeSpan.FromSeconds(60); + public override Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default) + => Task.CompletedTask; +} diff --git a/src/ServiceConnect.UnitTests/Processors/AggregatorRegistryCaptiveDepsTests.cs b/src/ServiceConnect.UnitTests/Processors/AggregatorRegistryCaptiveDepsTests.cs new file mode 100644 index 000000000..5db3049ac --- /dev/null +++ b/src/ServiceConnect.UnitTests/Processors/AggregatorRegistryCaptiveDepsTests.cs @@ -0,0 +1,88 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging.Abstractions; +using ServiceConnect.Interfaces; +using ServiceConnect.Services.Processors; +using Xunit; + +namespace ServiceConnect.UnitTests.Processors; + +public class AggregatorRegistryCaptiveDepsTests +{ + public sealed class TestMessage : Message + { + public TestMessage() : base(Guid.NewGuid()) { } + } + + public sealed class DisposableScopedDep : IDisposable + { + public static int DisposeCount; + public void Dispose() => Interlocked.Increment(ref DisposeCount); + } + + public sealed class AggregatorWithScopedDep(DisposableScopedDep dep) : Aggregator + { + // Holding the dep keeps the DI graph honest (registered, captured, disposed via scope). + // The class only needs to compile and instantiate; the test exercises the scope's disposal. + public DisposableScopedDep Dep { get; } = dep; + + public override int BatchSize() => 5; + public override TimeSpan Timeout() => TimeSpan.FromSeconds(1); + public override Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default) => Task.CompletedTask; + } + + [Fact] + public void Constructor_DisposesScopedDependencyResolvedAtConstructionTime() + { + DisposableScopedDep.DisposeCount = 0; + + var services = new ServiceCollection(); + services.AddScoped(); + services.AddTransient, AggregatorWithScopedDep>(); + var rootProvider = services.BuildServiceProvider(validateScopes: true); + + var handlerRefs = new List + { + new() { HandlerType = typeof(AggregatorWithScopedDep), MessageType = typeof(TestMessage) }, + }; + + // Construct the registry — it must NOT capture the root provider in a way that + // keeps the scoped dependency alive past the constructor. + var registry = new AggregatorRegistry( + handlerRefs, + rootProvider.GetRequiredService(), + NullLogger.Instance); + + Assert.Equal(1, DisposableScopedDep.DisposeCount); + Assert.True(registry.TryGet(typeof(TestMessage), out var descriptor)); + Assert.Equal(5, descriptor!.BatchSize); + } + + public sealed class AsyncOnlyDisposableAggregator : Aggregator, IAsyncDisposable + { + public AsyncOnlyDisposableAggregator() { } + public ValueTask DisposeAsync() => ValueTask.CompletedTask; + public override int BatchSize() => 1; + public override TimeSpan Timeout() => TimeSpan.FromSeconds(1); + public override Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default) => Task.CompletedTask; + } + + [Fact] + public void Constructor_RejectsIAsyncDisposableOnlyAggregator_WithClearMessage() + { + var services = new ServiceCollection(); + services.AddTransient, AsyncOnlyDisposableAggregator>(); + var rootProvider = services.BuildServiceProvider(validateScopes: true); + + var handlerRefs = new List + { + new() { HandlerType = typeof(AsyncOnlyDisposableAggregator), MessageType = typeof(TestMessage) }, + }; + + var ex = Assert.Throws(() => new AggregatorRegistry( + handlerRefs, + rootProvider.GetRequiredService(), + NullLogger.Instance)); + Assert.Contains("IAsyncDisposable", ex.Message); + Assert.Contains("IDisposable", ex.Message); + } +} diff --git a/src/ServiceConnect.UnitTests/Processors/AggregatorRegistryTests.cs b/src/ServiceConnect.UnitTests/Processors/AggregatorRegistryTests.cs new file mode 100644 index 000000000..da3574c93 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Processors/AggregatorRegistryTests.cs @@ -0,0 +1,322 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging.Abstractions; +using ServiceConnect.Interfaces; +using ServiceConnect.Services.Processors; +using Xunit; + +namespace ServiceConnect.UnitTests.Processors; + +public class AggregatorRegistryTests +{ + [Fact] + public void TryGet_ReturnsDescriptor_ForRegisteredType() + { + var refs = new List + { + new() { MessageType = typeof(ArgFoo), HandlerType = typeof(ArgFooAggregator) } + }; + var sp = BuildServiceProvider(); + var registry = new AggregatorRegistry(refs, sp.GetRequiredService(), NullLogger.Instance); + + Assert.True(registry.TryGet(typeof(ArgFoo), out var descriptor)); + Assert.Equal(typeof(ArgFoo), descriptor!.MessageType); + Assert.Equal(typeof(Aggregator), descriptor.AggregatorBaseType); + // AggregatorName is the concrete handler type's FullName, not the closed generic base. + Assert.Equal(typeof(ArgFooAggregator).FullName, descriptor.AggregatorName); + } + + [Fact] + public void AggregatorName_DoesNotContainAssemblyQualifiedNoise() + { + // Closed generic base types (e.g. Aggregator) embed the assembly-qualified name + // of their type argument in FullName, including Version=, Culture=, PublicKeyToken=. + // Those components rotate on assembly version bumps and would orphan persisted state. + // The name must be derived from the concrete handler type instead. + var refs = new List + { + new() { MessageType = typeof(ArgFoo), HandlerType = typeof(ArgFooAggregator) } + }; + var sp = BuildServiceProvider(); + var registry = new AggregatorRegistry(refs, sp.GetRequiredService(), NullLogger.Instance); + + Assert.True(registry.TryGet(typeof(ArgFoo), out var descriptor)); + + Assert.DoesNotContain("Version=", descriptor!.AggregatorName); + Assert.DoesNotContain("PublicKeyToken=", descriptor.AggregatorName); + Assert.DoesNotContain("Culture=", descriptor.AggregatorName); + + // The name is the concrete handler's FullName, stable across assembly version changes. + Assert.Equal(typeof(ArgFooAggregator).FullName, descriptor.AggregatorName); + } + + [Fact] + public void Construction_ThrowsInvalidOperation_WhenAggregatorIsGeneric() + { + // A generic aggregator subclass produces a FullName that embeds the assembly-qualified + // name of its generic argument (Version=, Culture=, PublicKeyToken=), defeating the + // version-stable derivation. The registry must reject such handlers at startup. + var refs = new List + { + new() { MessageType = typeof(ArgFoo), HandlerType = typeof(GenericFooAggregator) } + }; + var services = new ServiceCollection(); + services.AddTransient, GenericFooAggregator>(); + var sp = services.BuildServiceProvider(); + + var ex = Assert.Throws(() => + new AggregatorRegistry(refs, sp.GetRequiredService(), NullLogger.Instance)); + Assert.Contains("generic", ex.Message, StringComparison.OrdinalIgnoreCase); + } + + [Fact] + public void TryGet_ReturnsFalse_ForUnregisteredType() + { + var sp = new ServiceCollection().BuildServiceProvider(); + var registry = new AggregatorRegistry( + [], + sp.GetRequiredService(), + NullLogger.Instance); + + Assert.False(registry.TryGet(typeof(ArgFoo), out var descriptor)); + Assert.Null(descriptor); + } + + [Fact] + public void Construction_CapturesBatchSize_FromAggregatorInstance() + { + var refs = new List + { + new() { MessageType = typeof(ArgFoo), HandlerType = typeof(ArgFooAggregator) } + }; + var sp = BuildServiceProvider(); + var registry = new AggregatorRegistry(refs, sp.GetRequiredService(), NullLogger.Instance); + + Assert.True(registry.TryGet(typeof(ArgFoo), out var descriptor)); + Assert.Equal(42, descriptor!.BatchSize); + } + + [Fact] + public void Construction_CapturesTimeout_FromAggregatorInstance() + { + var refs = new List + { + new() { MessageType = typeof(ArgFoo), HandlerType = typeof(ArgFooAggregator) } + }; + var sp = BuildServiceProvider(); + var registry = new AggregatorRegistry(refs, sp.GetRequiredService(), NullLogger.Instance); + + Assert.True(registry.TryGet(typeof(ArgFoo), out var descriptor)); + Assert.Equal(TimeSpan.FromSeconds(7), descriptor!.Timeout); + } + + [Theory] + [InlineData(5, 0, 0)] // BatchSize set, Timeout=Zero — timer never scheduled, tail strands + [InlineData(0, 1, 0)] // BatchSize=0, positive Timeout — timer-only, no batch guard + [InlineData(0, 0, 0)] // both zero — no flush trigger at all + [InlineData(-1, 1, 0)] // negative BatchSize, positive Timeout + [InlineData(5, -1, 0)] // positive BatchSize, negative Timeout (Timeout.InfiniteTimeSpan-like) + public void Construction_ThrowsInvalidOperation_WhenConfigurationCannotFlush( + int batchSize, int timeoutSeconds, int timeoutMilliseconds) + { + var timeout = TimeSpan.FromSeconds(timeoutSeconds) + TimeSpan.FromMilliseconds(timeoutMilliseconds); + var refs = new List + { + new() { MessageType = typeof(ArgBar), HandlerType = typeof(ArgBarAggregator) } + }; + + var services = new ServiceCollection(); + services.AddTransient>(_ => new ArgBarAggregator(batchSize, timeout)); + var sp = services.BuildServiceProvider(); + + Assert.Throws(() => + new AggregatorRegistry(refs, sp.GetRequiredService(), NullLogger.Instance)); + } + + [Fact] + public void Construction_DoesNotThrow_WhenBothBatchSizeAndTimeoutArePositive() + { + var refs = new List + { + new() { MessageType = typeof(ArgBar), HandlerType = typeof(ArgBarAggregator) } + }; + + var services = new ServiceCollection(); + services.AddTransient>(_ => new ArgBarAggregator(5, TimeSpan.FromSeconds(1))); + var sp = services.BuildServiceProvider(); + + // Must not throw. + var registry = new AggregatorRegistry(refs, sp.GetRequiredService(), NullLogger.Instance); + Assert.True(registry.TryGet(typeof(ArgBar), out _)); + } + + [Fact] + public void Construction_ThrowsOnDuplicateMessageType() + { + var refs = new List + { + new() { MessageType = typeof(ArgFoo), HandlerType = typeof(ArgFooAggregator) }, + new() { MessageType = typeof(ArgFoo), HandlerType = typeof(ArgSecondFooAggregator) } + }; + + var services = new ServiceCollection(); + services.AddTransient, ArgFooAggregator>(); + var sp = services.BuildServiceProvider(); + + var ex = Assert.Throws(() => + new AggregatorRegistry(refs, sp.GetRequiredService(), NullLogger.Instance)); + Assert.Contains(nameof(ArgFoo), ex.Message); + } + + [Fact] + public void Construction_Deduplicates_SameHandlerRegisteredTwice() + { + var refs = new List + { + new() { MessageType = typeof(ArgFoo), HandlerType = typeof(ArgFooAggregator) }, + new() { MessageType = typeof(ArgFoo), HandlerType = typeof(ArgFooAggregator) } + }; + var sp = BuildServiceProvider(); + + // Same (MessageType, HandlerType) pair twice must not throw. + var registry = new AggregatorRegistry(refs, sp.GetRequiredService(), NullLogger.Instance); + Assert.True(registry.TryGet(typeof(ArgFoo), out _)); + } + + [Fact] + public void Construction_IgnoresNonAggregators() + { + var refs = new List + { + new() { MessageType = typeof(ArgFoo), HandlerType = typeof(ArgFooMessageHandler) } + }; + var sp = new ServiceCollection().BuildServiceProvider(); + var registry = new AggregatorRegistry(refs, sp.GetRequiredService(), NullLogger.Instance); + + Assert.False(registry.TryGet(typeof(ArgFoo), out _)); + } + + [Fact] + public void TryGet_RegistersHandlerThroughMultiLevelHierarchy() + { + // ConcreteMultiLevelAggregator : IntermediateAggregator : Aggregator + // Previously only handlerType.BaseType was inspected; this two-level chain was silently dropped. + var refs = new List + { + new() { MessageType = typeof(MultiLevelMsg), HandlerType = typeof(ConcreteMultiLevelAggregator) } + }; + var sp = BuildServiceProvider(); + var registry = new AggregatorRegistry(refs, sp.GetRequiredService(), NullLogger.Instance); + + Assert.True(registry.TryGet(typeof(MultiLevelMsg), out var descriptor)); + Assert.Equal(typeof(Aggregator), descriptor!.AggregatorBaseType); + } + + [Fact] + public void Descriptor_BuildTypedList_ReturnsPopulatedTypedList() + { + var refs = new List + { + new() { MessageType = typeof(ArgFoo), HandlerType = typeof(ArgFooAggregator) } + }; + var sp = BuildServiceProvider(); + var registry = new AggregatorRegistry(refs, sp.GetRequiredService(), NullLogger.Instance); + + Assert.True(registry.TryGet(typeof(ArgFoo), out var descriptor)); + + var raw = new List { new ArgFoo(Guid.NewGuid()) { Val = "a" }, new ArgFoo(Guid.NewGuid()) { Val = "b" } }; + var typedObj = descriptor!.BuildTypedList(raw); + + // BuildTypedList returns IReadOnlyList boxed as object; the underlying runtime + // type is List (which implements IReadOnlyList). + Assert.IsType>(typedObj); + var typed = Assert.IsAssignableFrom>(typedObj); + Assert.Equal(2, typed.Count); + Assert.Equal("a", typed[0].Val); + } + + [Fact] + public async Task Descriptor_InvokeExecuteAsync_CallsExecuteAsyncOnAggregator() + { + var refs = new List + { + new() { MessageType = typeof(ArgFoo), HandlerType = typeof(ArgFooAggregator) } + }; + var sp = BuildServiceProvider(); + var registry = new AggregatorRegistry(refs, sp.GetRequiredService(), NullLogger.Instance); + + Assert.True(registry.TryGet(typeof(ArgFoo), out var descriptor)); + + var agg = new ArgFooAggregator(); + var list = new List { new(Guid.NewGuid()) { Val = "x" } }; + await descriptor!.InvokeExecuteAsync(agg, list, CancellationToken.None); + + Assert.NotNull(agg.Executed); + Assert.Single(agg.Executed!); + Assert.Equal("x", agg.Executed![0].Val); + } + + private static IServiceProvider BuildServiceProvider() + where TMsg : Message where TAgg : Aggregator + { + var services = new ServiceCollection(); + services.AddTransient, TAgg>(); + return services.BuildServiceProvider(); + } +} + +file class ArgFoo(Guid c) : Message(c) { public string Val { get; set; } = ""; } + +file class ArgFooAggregator : Aggregator +{ + public IReadOnlyList? Executed { get; private set; } + public override int BatchSize() => 42; + public override TimeSpan Timeout() => TimeSpan.FromSeconds(7); + public override Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default) + { + Executed = messages; + return Task.CompletedTask; + } +} + +file class ArgSecondFooAggregator : Aggregator +{ + public override int BatchSize() => 5; + public override TimeSpan Timeout() => TimeSpan.FromMilliseconds(100); + public override Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default) => Task.CompletedTask; +} + +file class ArgFooMessageHandler : IMessageHandler +{ + public Task HandleAsync(ArgFoo message, IConsumeContext context, CancellationToken cancellationToken = default) => Task.CompletedTask; +} + +file class ArgBar(Guid c) : Message(c); + +file class GenericFooAggregator : Aggregator +{ + public override int BatchSize() => 1; + public override TimeSpan Timeout() => TimeSpan.FromMilliseconds(1); + public override Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default) + => Task.CompletedTask; +} + +file class ArgBarAggregator(int batchSize, TimeSpan timeout) : Aggregator +{ + public override int BatchSize() => batchSize; + public override TimeSpan Timeout() => timeout; + public override Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default) + => Task.CompletedTask; +} + +file class MultiLevelMsg(Guid c) : Message(c); + +// Two-level hierarchy: ConcreteMultiLevelAggregator does not directly extend Aggregator. +file abstract class IntermediateAggregator : Aggregator +{ + public override int BatchSize() => 1; + public override TimeSpan Timeout() => TimeSpan.FromMilliseconds(1); + public override Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default) + => Task.CompletedTask; +} + +file sealed class ConcreteMultiLevelAggregator : IntermediateAggregator { } diff --git a/src/ServiceConnect.UnitTests/Processors/DefaultProcessManagerPropertyMapperTests.cs b/src/ServiceConnect.UnitTests/Processors/DefaultProcessManagerPropertyMapperTests.cs new file mode 100644 index 000000000..fb43922ad --- /dev/null +++ b/src/ServiceConnect.UnitTests/Processors/DefaultProcessManagerPropertyMapperTests.cs @@ -0,0 +1,147 @@ +using ServiceConnect.Interfaces; +using ServiceConnect.Services.Processors; +using Xunit; + +namespace ServiceConnect.UnitTests.Processors; + +public class DefaultProcessManagerPropertyMapperTests +{ + [Fact] + public void ConfigureMapping_AddsMappingWithMessageType() + { + var mapper = new DefaultProcessManagerPropertyMapper(); + + mapper.ConfigureMapping(d => d.OrderId, m => m.OrderId); + + var mapping = Assert.Single(mapper.Mappings); + Assert.Equal(typeof(FakePmMsg), mapping.MessageType); + } + + [Fact] + public void ConfigureMapping_UnwrapsUnaryExpression_ForValueTypeProperty() + { + // Guid -> object requires a boxing Convert expression; that means the body is a + // UnaryExpression(Convert) around a MemberExpression. The mapper must unwrap it. + var mapper = new DefaultProcessManagerPropertyMapper(); + + mapper.ConfigureMapping(d => d.OrderId, m => m.OrderId); + + var mapping = mapper.Mappings.Single(); + Assert.True(mapping.PropertiesHierarchy.ContainsKey(nameof(FakePmData.OrderId))); + Assert.Equal(typeof(Guid), mapping.PropertiesHierarchy[nameof(FakePmData.OrderId)]); + } + + [Fact] + public void ConfigureMapping_HandlesDirectMemberExpression_ForReferenceTypeProperty() + { + // string -> object is reference-assignable, so no boxing Convert is synthesised; + // the body is a MemberExpression directly. + var mapper = new DefaultProcessManagerPropertyMapper(); + + mapper.ConfigureMapping(d => d.Customer, m => m.Customer); + + var mapping = mapper.Mappings.Single(); + Assert.True(mapping.PropertiesHierarchy.ContainsKey(nameof(FakePmData.Customer))); + Assert.Equal(typeof(string), mapping.PropertiesHierarchy[nameof(FakePmData.Customer)]); + } + + [Fact] + public void ConfigureMapping_CompiledMessageFunc_ExtractsValueFromMessage() + { + var mapper = new DefaultProcessManagerPropertyMapper(); + mapper.ConfigureMapping(d => d.Customer, m => m.Customer); + + var msg = new FakePmMsg(Guid.NewGuid()) { Customer = "Acme" }; + var value = mapper.Mappings.Single().MessageProp(msg); + + Assert.Equal("Acme", value); + } + + [Fact] + public void ConfigureMapping_CompiledMessageFunc_BoxesValueTypePropertyCorrectly() + { + var mapper = new DefaultProcessManagerPropertyMapper(); + mapper.ConfigureMapping(d => d.OrderId, m => m.OrderId); + + var expected = Guid.NewGuid(); + var msg = new FakePmMsg(Guid.NewGuid()) { OrderId = expected }; + var value = mapper.Mappings.Single().MessageProp(msg); + + Assert.Equal(expected, value); + } + + [Fact] + public void ConfigureMapping_NestedMemberChain_BuildsHierarchyInOuterToInnerOrder() + { + // Chained member access (d => d.Inner.Id) is supported: the mapper walks + // the MemberExpression from outer to inner so PropertiesHierarchy carries + // both names in the order the persistor's foreach-with-Reverse will need + // (Inner first, Id last) to navigate data.Data → .Inner → .Id at dispatch. + var mapper = new DefaultProcessManagerPropertyMapper(); + + mapper.ConfigureMapping(d => d.Inner.Id, m => m.OrderId); + + var mapping = mapper.Mappings.Single(); + Assert.Equal(2, mapping.PropertiesHierarchy.Count); + Assert.True(mapping.PropertiesHierarchy.ContainsKey("Inner")); + Assert.True(mapping.PropertiesHierarchy.ContainsKey("Id")); + } + + [Fact] + public void ConfigureMapping_MethodCallExpression_Throws() + { + var mapper = new DefaultProcessManagerPropertyMapper(); + + Assert.Throws(() => + mapper.ConfigureMapping(d => d.Customer.ToUpper(), m => m.Customer)); + } + + [Fact] + public void ConfigureMapping_ConstantExpression_Throws() + { + var mapper = new DefaultProcessManagerPropertyMapper(); + + Assert.Throws(() => + mapper.ConfigureMapping(_ => "const", m => m.Customer)); + } + + [Fact] + public void ConfigureMapping_FieldAccess_Throws() + { + // Field access on the parameter — Member is a FieldInfo, not PropertyInfo. + var mapper = new DefaultProcessManagerPropertyMapper(); + + Assert.Throws(() => + mapper.ConfigureMapping(d => d.FieldId, m => m.OrderId)); + } +} + +file class FakePmData : IProcessManagerData +{ + public Guid CorrelationId { get; set; } + public Guid OrderId { get; set; } + public string Customer { get; set; } = ""; +} + +file class FakePmMsg(Guid c) : Message(c) +{ + public Guid OrderId { get; set; } + public string Customer { get; set; } = ""; +} + +file class FakePmInner +{ + public Guid Id { get; set; } +} + +file class FakePmDataWithNested : IProcessManagerData +{ + public Guid CorrelationId { get; set; } + public FakePmInner Inner { get; set; } = new(); +} + +file class FakePmDataWithField : IProcessManagerData +{ + public Guid CorrelationId { get; set; } + public Guid FieldId = Guid.Empty; +} diff --git a/src/ServiceConnect.UnitTests/Processors/HandlerProcessorRoutingSlipTests.cs b/src/ServiceConnect.UnitTests/Processors/HandlerProcessorRoutingSlipTests.cs new file mode 100644 index 000000000..8b8bcac9d --- /dev/null +++ b/src/ServiceConnect.UnitTests/Processors/HandlerProcessorRoutingSlipTests.cs @@ -0,0 +1,333 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using ServiceConnect.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Services; +using ServiceConnect.Services.Processors; +using Xunit; + +namespace ServiceConnect.UnitTests.Processors; + +/// +/// Covers ForwardRoutingSlipAsync behaviour via ProcessAsync — the forward method is +/// private static, so all assertions flow through the public dispatch path. +/// +public class HandlerProcessorRoutingSlipTests +{ + private static readonly IBusConfiguration RoutingSlipBusConfig = new BusConfiguration + { + EnableRoutingSlipProcessing = true + }; + + // Minimal queue config without any explicit queue mappings — used to confirm + // that cross-service destinations are not rejected when IsKnownQueue is absent. + private static readonly IQueueConfiguration MinimalQueueConfig = new QueueConfiguration + { + QueueName = "local-service-q", + ErrorQueueName = "errors", + AuditQueueName = "audit" + }; + + private static ConsumeScopeAccessor NewScope(IServiceProvider sp) + { + var accessor = new ConsumeScopeAccessor(); + accessor.Push(sp); + return accessor; + } + + private static MessageHandlerRegistry BuildRegistry(params Type[] messageTypes) + { + var refs = messageTypes + .Select(mt => new HandlerReference { MessageType = mt, HandlerType = typeof(SlipTestHandler) }) + .ToList(); + return new MessageHandlerRegistry(refs, NullLogger.Instance); + } + + /// + /// A well-formed cross-service queue name that is not in the local queueConfig must be + /// allowed; IBus.RouteAsync is called with that destination. A strict IsKnownQueue check + /// would throw InvalidOperationException and block legitimate cross-service routing slips. + /// + [Fact] + public async Task ForwardRoutingSlip_DestinationNotInLocalConfig_DoesNotThrow() + { + var handler = new SlipTestHandler(); + var mockBus = new Mock(); + mockBus.Setup(b => b.RouteAsync(It.IsAny(), It.IsAny>(), It.IsAny())) + .Returns(Task.CompletedTask); + + var services = new ServiceCollection(); + services.AddSingleton>(handler); + services.AddSingleton(mockBus.Object); + var provider = services.BuildServiceProvider(); + + // MinimalQueueConfig has no mapping for "remote-service-q" — must still be accepted. + var processor = new HandlerProcessor( + BuildRegistry(typeof(SlipTestMsg)), + NewScope(provider), + new Lazy(() => mockBus.Object), + RoutingSlipBusConfig, + MinimalQueueConfig, + new ConsumeContextPool(), + new ConsumeContextAccessor(), + Microsoft.Extensions.Logging.Abstractions.NullLogger.Instance); + + var msg = new SlipTestMsg(Guid.NewGuid()); + var headers = new Dictionary + { + [HeaderKeys.RoutingSlip] = "remote-service-q" + }; + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + // No throw — the destination passes format validation. + var result = await processor.ProcessAsync(new byte[] { 1 }, typeof(SlipTestMsg), msg, headers, envelope); + + Assert.Equal(ProcessResult.Handled, result); + mockBus.Verify( + b => b.RouteAsync(msg, It.Is>(d => d.Count == 1 && d[0] == "remote-service-q"), It.IsAny()), + Times.Once); + } + + /// + /// Cross-service routing slip with multiple destinations in a single header — + /// none of the destinations are in the local queue config, but all are well-formed. + /// All must be forwarded in order. + /// + [Fact] + public async Task ForwardRoutingSlip_MultipleDestinationsNotInLocalConfig_AllForwarded() + { + var handler = new SlipTestHandler(); + var mockBus = new Mock(); + mockBus.Setup(b => b.RouteAsync(It.IsAny(), It.IsAny>(), It.IsAny())) + .Returns(Task.CompletedTask); + + var services = new ServiceCollection(); + services.AddSingleton>(handler); + services.AddSingleton(mockBus.Object); + var provider = services.BuildServiceProvider(); + + var processor = new HandlerProcessor( + BuildRegistry(typeof(SlipTestMsg)), + NewScope(provider), + new Lazy(() => mockBus.Object), + RoutingSlipBusConfig, + MinimalQueueConfig, + new ConsumeContextPool(), + new ConsumeContextAccessor(), + Microsoft.Extensions.Logging.Abstractions.NullLogger.Instance); + + var msg = new SlipTestMsg(Guid.NewGuid()); + var headers = new Dictionary + { + [HeaderKeys.RoutingSlip] = "service-b-q, service-c-q" + }; + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + await processor.ProcessAsync(new byte[] { 1 }, typeof(SlipTestMsg), msg, headers, envelope); + + mockBus.Verify( + b => b.RouteAsync(msg, It.Is>(d => d.Count == 2 && d[0] == "service-b-q" && d[1] == "service-c-q"), It.IsAny()), + Times.Once); + } + + /// + /// IsValidRoutingSlipDestination is the remaining gate once the IsKnownQueue check is + /// relaxed. Malformed destinations containing AMQP wildcards or control characters must + /// still be rejected with InvalidOperationException. + /// + /// + /// A whitespace-only header value is caught by the outer IsNullOrWhiteSpace guard + /// (treated as "no slip") and is covered by ForwardRoutingSlip_WhitespaceOnlyHeaderValue_TreatedAsNoSlip. + /// Empty-string tokens inside a multi-part slip are dropped by Split(RemoveEmptyEntries) + /// before reaching the validator. + /// + [Theory] + [InlineData("has*wildcard")] + [InlineData("has#wildcard")] + [InlineData("has\nnewline")] + [InlineData("has\rnewline")] + [InlineData("has\ttab")] + public async Task ForwardRoutingSlip_MalformedDestination_LogsAndReturnsHandled(string badDestination) + { + var handler = new SlipTestHandler(); + var mockBus = new Mock(); + + var services = new ServiceCollection(); + services.AddSingleton>(handler); + services.AddSingleton(mockBus.Object); + var provider = services.BuildServiceProvider(); + + var processor = new HandlerProcessor( + BuildRegistry(typeof(SlipTestMsg)), + NewScope(provider), + new Lazy(() => mockBus.Object), + RoutingSlipBusConfig, + MinimalQueueConfig, + new ConsumeContextPool(), + new ConsumeContextAccessor(), + Microsoft.Extensions.Logging.Abstractions.NullLogger.Instance); + + var msg = new SlipTestMsg(Guid.NewGuid()); + var headers = new Dictionary + { + [HeaderKeys.RoutingSlip] = badDestination + }; + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + // Handlers already succeeded; the malformed-destination validation throws + // InvalidOperationException inside ForwardRoutingSlipAsync, which is caught + // and logged so the message is acked rather than re-running on retry. + var result = await processor.ProcessAsync(new byte[] { 1 }, typeof(SlipTestMsg), msg, headers, envelope); + Assert.Equal(ProcessResult.Handled, result); + mockBus.Verify( + b => b.RouteAsync(It.IsAny(), It.IsAny>(), It.IsAny()), + Times.Never); + } + + /// + /// A whitespace-only RoutingSlip header value is treated as "no slip present" — + /// the outer IsNullOrWhiteSpace guard returns early before reaching the per-token + /// validation loop, so no exception is thrown and RouteAsync is never called. + /// + [Fact] + public async Task ForwardRoutingSlip_WhitespaceOnlyHeaderValue_TreatedAsNoSlip() + { + var handler = new SlipTestHandler(); + var mockBus = new Mock(); + + var services = new ServiceCollection(); + services.AddSingleton>(handler); + services.AddSingleton(mockBus.Object); + var provider = services.BuildServiceProvider(); + + var processor = new HandlerProcessor( + BuildRegistry(typeof(SlipTestMsg)), + NewScope(provider), + new Lazy(() => mockBus.Object), + RoutingSlipBusConfig, + MinimalQueueConfig, + new ConsumeContextPool(), + new ConsumeContextAccessor(), + Microsoft.Extensions.Logging.Abstractions.NullLogger.Instance); + + var msg = new SlipTestMsg(Guid.NewGuid()); + var headers = new Dictionary + { + [HeaderKeys.RoutingSlip] = " " + }; + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + // IsNullOrWhiteSpace(" ") → true → early return → no RouteAsync call, no throw. + var result = await processor.ProcessAsync(new byte[] { 1 }, typeof(SlipTestMsg), msg, headers, envelope); + + Assert.Equal(ProcessResult.Handled, result); + mockBus.Verify(b => b.RouteAsync(It.IsAny(), It.IsAny>(), It.IsAny()), Times.Never); + } + + /// + /// When a handler throws, AggregateException propagates before ForwardRoutingSlipAsync + /// runs. IBus.RouteAsync must never be called — the slip is dropped from the in-flight + /// forward path, but the envelope RoutingSlip header is untouched (not tested here + /// because that is a serialisation concern, not a processor concern). + /// + [Fact] + public async Task ForwardRoutingSlip_HandlerThrows_SlipNotForwarded() + { + var mockBus = new Mock(); + + var services = new ServiceCollection(); + services.AddSingleton>(new ThrowingSlipHandler("boom")); + services.AddSingleton(mockBus.Object); + var provider = services.BuildServiceProvider(); + + var processor = new HandlerProcessor( + BuildRegistry(typeof(SlipTestMsg)), + NewScope(provider), + new Lazy(() => mockBus.Object), + RoutingSlipBusConfig, + MinimalQueueConfig, + new ConsumeContextPool(), + new ConsumeContextAccessor(), + Microsoft.Extensions.Logging.Abstractions.NullLogger.Instance); + + var msg = new SlipTestMsg(Guid.NewGuid()); + // Destination is well-formed and would normally be forwarded. + var headers = new Dictionary + { + [HeaderKeys.RoutingSlip] = "remote-service-q" + }; + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + await Assert.ThrowsAsync( + () => processor.ProcessAsync(new byte[] { 1 }, typeof(SlipTestMsg), msg, headers, envelope)); + + // The AggregateException propagates before ForwardRoutingSlipAsync is reached. + mockBus.Verify(b => b.RouteAsync(It.IsAny(), It.IsAny>(), It.IsAny()), Times.Never); + } + + /// + /// When handlers succeed and the slip-forward then fails, ProcessAsync must return + /// Handled — the dispatcher acks the broker and the message does not re-enter the + /// retry queue. Without this, the slip-forward failure surfaces as Success=false, + /// the broker redelivers the message, and the handlers run again on every retry + /// until the budget is exhausted — duplicating side effects that already succeeded. + /// + [Fact] + public async Task ForwardRoutingSlip_HandlerSucceedsButForwardFails_ReturnsHandledAndSwallowsFailure() + { + var handler = new SlipTestHandler(); + var mockBus = new Mock(); + // RouteAsync throws a transient transport error after handlers succeed. + mockBus.Setup(b => b.RouteAsync(It.IsAny(), It.IsAny>(), It.IsAny())) + .ThrowsAsync(new InvalidOperationException("transient broker disconnect")); + + var services = new ServiceCollection(); + services.AddSingleton>(handler); + services.AddSingleton(mockBus.Object); + var provider = services.BuildServiceProvider(); + + var processor = new HandlerProcessor( + BuildRegistry(typeof(SlipTestMsg)), + NewScope(provider), + new Lazy(() => mockBus.Object), + RoutingSlipBusConfig, + MinimalQueueConfig, + new ConsumeContextPool(), + new ConsumeContextAccessor(), + Microsoft.Extensions.Logging.Abstractions.NullLogger.Instance); + + var msg = new SlipTestMsg(Guid.NewGuid()); + var headers = new Dictionary + { + [HeaderKeys.RoutingSlip] = "remote-service-q" + }; + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + // The slip-forward throws but ProcessAsync must NOT propagate it: the handler + // already ran successfully and a re-run on retry would duplicate side effects. + var result = await processor.ProcessAsync(new byte[] { 1 }, typeof(SlipTestMsg), msg, headers, envelope); + Assert.Equal(ProcessResult.Handled, result); + + // RouteAsync was actually attempted (proving the failure path was exercised). + mockBus.Verify( + b => b.RouteAsync(It.IsAny(), It.IsAny>(), It.IsAny()), + Times.Once); + } + +} + +file class SlipTestMsg(Guid correlationId) : Message(correlationId); + +file sealed class SlipTestHandler : IMessageHandler +{ + public Task HandleAsync(SlipTestMsg message, IConsumeContext context, CancellationToken cancellationToken = default) + => Task.CompletedTask; +} + +file sealed class ThrowingSlipHandler(string errorMessage) : IMessageHandler +{ + public Task HandleAsync(SlipTestMsg message, IConsumeContext context, CancellationToken cancellationToken = default) + => throw new InvalidOperationException(errorMessage); +} diff --git a/src/ServiceConnect.UnitTests/Processors/HandlerProcessorTests.cs b/src/ServiceConnect.UnitTests/Processors/HandlerProcessorTests.cs new file mode 100644 index 000000000..d32f2acfd --- /dev/null +++ b/src/ServiceConnect.UnitTests/Processors/HandlerProcessorTests.cs @@ -0,0 +1,650 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using ServiceConnect; +using ServiceConnect.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Services; +using ServiceConnect.Services.Processors; +using ServiceConnect.UnitTests.Fakes; +using Xunit; + +namespace ServiceConnect.UnitTests.Processors; + +public class HandlerProcessorTests +{ + private static readonly IBusConfiguration DefaultBusConfig = new BusConfiguration(); + private static readonly IQueueConfiguration DefaultQueueConfig = new QueueConfiguration + { + QueueName = "test-queue", + ErrorQueueName = "errors", + AuditQueueName = "audit" + }; + + // Tests resolve handlers through a ConsumeScopeAccessor whose AsyncLocal is primed + // with a per-test provider; each test class instance (xUnit creates one per fact) + // runs in its own async flow, so the Push disposable can be discarded. + private static ConsumeScopeAccessor NewScope(IServiceProvider sp) + { + var accessor = new ConsumeScopeAccessor(); + accessor.Push(sp); + return accessor; + } + + [Fact] + public async Task ProcessAsync_WithRegisteredHandler_InvokesHandler() + { + var handler = new TestHpHandler(); + var mockBus = new Mock(); + var services = new ServiceCollection(); + services.AddSingleton>(handler); + services.AddSingleton(mockBus.Object); + var provider = services.BuildServiceProvider(); + + var processor = new HandlerProcessor(BuildRegistry(typeof(TestHpMsg)), NewScope(provider), new Lazy(() => mockBus.Object), DefaultBusConfig, DefaultQueueConfig, new ConsumeContextPool(), new ConsumeContextAccessor(), Microsoft.Extensions.Logging.Abstractions.NullLogger.Instance); + var msg = new TestHpMsg(Guid.NewGuid()); + var headers = new Dictionary(); + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + var result = await processor.ProcessAsync(new byte[] { 1 }, typeof(TestHpMsg), msg, headers, envelope); + + Assert.Equal(ProcessResult.Handled, result); + Assert.True(handler.Invoked); + } + + [Fact] + public async Task ProcessAsync_NoHandlers_ReturnsNotHandled() + { + var mockBus = new Mock(); + var services = new ServiceCollection(); + services.AddSingleton(mockBus.Object); + var provider = services.BuildServiceProvider(); + + var processor = new HandlerProcessor(BuildRegistry(), NewScope(provider), new Lazy(() => mockBus.Object), DefaultBusConfig, DefaultQueueConfig, new ConsumeContextPool(), new ConsumeContextAccessor(), Microsoft.Extensions.Logging.Abstractions.NullLogger.Instance); + var msg = new TestHpMsg(Guid.NewGuid()); + var headers = new Dictionary(); + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + var result = await processor.ProcessAsync(new byte[] { 1 }, typeof(TestHpMsg), msg, headers, envelope); + + Assert.Equal(ProcessResult.NotHandled, result); + } + + [Fact] + public async Task ProcessAsync_NullMessage_ReturnsNotHandled() + { + var services = new ServiceCollection(); + var provider = services.BuildServiceProvider(); + + var processor = new HandlerProcessor(BuildRegistry(), NewScope(provider), new Lazy(() => new Mock().Object), DefaultBusConfig, DefaultQueueConfig, new ConsumeContextPool(), new ConsumeContextAccessor(), Microsoft.Extensions.Logging.Abstractions.NullLogger.Instance); + var headers = new Dictionary(); + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + var result = await processor.ProcessAsync(new byte[] { 1 }, typeof(TestHpMsg), null, headers, envelope); + + Assert.Equal(ProcessResult.NotHandled, result); + } + + [Fact] + public async Task ProcessAsync_PassesConsumeContextToHandler() + { + var handler = new TestHpHandler(); + var mockBus = new Mock(); + var services = new ServiceCollection(); + services.AddSingleton>(handler); + services.AddSingleton(mockBus.Object); + var provider = services.BuildServiceProvider(); + + var processor = new HandlerProcessor(BuildRegistry(typeof(TestHpMsg)), NewScope(provider), new Lazy(() => mockBus.Object), DefaultBusConfig, DefaultQueueConfig, new ConsumeContextPool(), new ConsumeContextAccessor(), Microsoft.Extensions.Logging.Abstractions.NullLogger.Instance); + var msg = new TestHpMsg(Guid.NewGuid()); + var headers = new Dictionary(); + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + await processor.ProcessAsync(new byte[] { 1 }, typeof(TestHpMsg), msg, headers, envelope); + + Assert.True(handler.ContextWasReceived); + Assert.Same(mockBus.Object, handler.ObservedBus); + // Dictionary implements IReadOnlyDictionary, so compare contents not reference. + Assert.Equal(headers, handler.ObservedHeaders); + } + + [Fact] + public async Task ProcessAsync_WithRoutingSlip_ForwardsToKnownDestination() + { + var handler = new TestHpHandler(); + var mockBus = new Mock(); + mockBus.Setup(b => b.RouteAsync(It.IsAny(), It.IsAny>())) + .Returns(Task.CompletedTask); + var services = new ServiceCollection(); + services.AddSingleton>(handler); + services.AddSingleton(mockBus.Object); + var provider = services.BuildServiceProvider(); + + // Register the routing slip destinations as known queues + var queueConfig = new QueueConfiguration { QueueName = "test-queue" }; + queueConfig.AddQueueMapping(typeof(TestHpMsg), "Step2"); + queueConfig.AddQueueMapping(typeof(TestHpMsg), "Step3"); + + var processor = new HandlerProcessor(BuildRegistry(typeof(TestHpMsg)), NewScope(provider), new Lazy(() => mockBus.Object), DefaultBusConfig, queueConfig, new ConsumeContextPool(), new ConsumeContextAccessor(), Microsoft.Extensions.Logging.Abstractions.NullLogger.Instance); + var msg = new TestHpMsg(Guid.NewGuid()); + var headers = new Dictionary { [HeaderKeys.RoutingSlip] = "Step2,Step3" }; + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + await processor.ProcessAsync(new byte[] { 1 }, typeof(TestHpMsg), msg, headers, envelope); + + Assert.True(handler.Invoked); + mockBus.Verify(b => b.RouteAsync(msg, It.Is>(d => d.Count == 2 && d[0] == "Step2" && d[1] == "Step3")), Times.Once); + } + + [Fact] + public async Task ProcessAsync_WithRoutingSlipBytes_ForwardsToKnownDestination() + { + var handler = new TestHpHandler(); + var mockBus = new Mock(); + mockBus.Setup(b => b.RouteAsync(It.IsAny(), It.IsAny>())) + .Returns(Task.CompletedTask); + var services = new ServiceCollection(); + services.AddSingleton>(handler); + services.AddSingleton(mockBus.Object); + var provider = services.BuildServiceProvider(); + + // Register the routing slip destination as a known queue + var queueConfig = new QueueConfiguration { QueueName = "test-queue" }; + queueConfig.AddQueueMapping(typeof(TestHpMsg), "NextQueue"); + + var processor = new HandlerProcessor(BuildRegistry(typeof(TestHpMsg)), NewScope(provider), new Lazy(() => mockBus.Object), DefaultBusConfig, queueConfig, new ConsumeContextPool(), new ConsumeContextAccessor(), Microsoft.Extensions.Logging.Abstractions.NullLogger.Instance); + var msg = new TestHpMsg(Guid.NewGuid()); + var headers = new Dictionary { [HeaderKeys.RoutingSlip] = System.Text.Encoding.UTF8.GetBytes("NextQueue") }; + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + await processor.ProcessAsync(new byte[] { 1 }, typeof(TestHpMsg), msg, headers, envelope); + + mockBus.Verify(b => b.RouteAsync(msg, It.Is>(d => d.Count == 1 && d[0] == "NextQueue")), Times.Once); + } + + [Fact] + public async Task ProcessAsync_NoRoutingSlip_DoesNotCallRoute() + { + var handler = new TestHpHandler(); + var mockBus = new Mock(); + var services = new ServiceCollection(); + services.AddSingleton>(handler); + services.AddSingleton(mockBus.Object); + var provider = services.BuildServiceProvider(); + + var processor = new HandlerProcessor(BuildRegistry(typeof(TestHpMsg)), NewScope(provider), new Lazy(() => mockBus.Object), DefaultBusConfig, DefaultQueueConfig, new ConsumeContextPool(), new ConsumeContextAccessor(), Microsoft.Extensions.Logging.Abstractions.NullLogger.Instance); + var msg = new TestHpMsg(Guid.NewGuid()); + var headers = new Dictionary(); + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + await processor.ProcessAsync(new byte[] { 1 }, typeof(TestHpMsg), msg, headers, envelope); + + mockBus.Verify(b => b.RouteAsync(It.IsAny(), It.IsAny>()), Times.Never); + } + + [Fact] + public async Task ProcessAsync_RoutingSlipToQueueNotInLocalConfig_ForwardsSuccessfully() + { + // Routing-slip destinations are not required to appear in the local queueConfig — + // only format validation gates the forward, not membership in IsKnownQueue. + var handler = new TestHpHandler(); + var mockBus = new Mock(); + mockBus.Setup(b => b.RouteAsync(It.IsAny(), It.IsAny>(), It.IsAny())) + .Returns(Task.CompletedTask); + var services = new ServiceCollection(); + services.AddSingleton>(handler); + services.AddSingleton(mockBus.Object); + var provider = services.BuildServiceProvider(); + + var processor = new HandlerProcessor(BuildRegistry(typeof(TestHpMsg)), NewScope(provider), new Lazy(() => mockBus.Object), DefaultBusConfig, DefaultQueueConfig, new ConsumeContextPool(), new ConsumeContextAccessor(), Microsoft.Extensions.Logging.Abstractions.NullLogger.Instance); + var msg = new TestHpMsg(Guid.NewGuid()); + var headers = new Dictionary { [HeaderKeys.RoutingSlip] = "unknown-cross-service-queue" }; + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + var result = await processor.ProcessAsync(new byte[] { 1 }, typeof(TestHpMsg), msg, headers, envelope); + + Assert.Equal(ProcessResult.Handled, result); + mockBus.Verify( + b => b.RouteAsync(msg, It.Is>(d => d.Count == 1 && d[0] == "unknown-cross-service-queue"), It.IsAny()), + Times.Once); + } + + [Fact] + public async Task ProcessAsync_RoutingSlipDisabled_SkipsProcessing() + { + var handler = new TestHpHandler(); + var mockBus = new Mock(); + var services = new ServiceCollection(); + services.AddSingleton>(handler); + services.AddSingleton(mockBus.Object); + var provider = services.BuildServiceProvider(); + + var busConfig = new BusConfiguration { EnableRoutingSlipProcessing = false }; + var processor = new HandlerProcessor(BuildRegistry(typeof(TestHpMsg)), NewScope(provider), new Lazy(() => mockBus.Object), busConfig, DefaultQueueConfig, new ConsumeContextPool(), new ConsumeContextAccessor(), Microsoft.Extensions.Logging.Abstractions.NullLogger.Instance); + var msg = new TestHpMsg(Guid.NewGuid()); + // This would normally throw because "SomeQueue" isn't known, but routing slip is disabled + var headers = new Dictionary { [HeaderKeys.RoutingSlip] = "SomeQueue" }; + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + var result = await processor.ProcessAsync(new byte[] { 1 }, typeof(TestHpMsg), msg, headers, envelope); + + Assert.Equal(ProcessResult.Handled, result); + Assert.True(handler.Invoked); + mockBus.Verify(b => b.RouteAsync(It.IsAny(), It.IsAny>()), Times.Never); + } + + [Fact] + public async Task ProcessAsync_SetsAmbientConsumeHeadersDuringHandlerAndClearsThemAfterward() + { + var timeoutStore = new CapturingTimeoutStore(); + var accessor = new ConsumeContextAccessor(); + var bus = TestBusFactory.Create(DefaultQueueConfig, timeoutStore, accessor); + var handler = new TimeoutRequestingHandler(bus); + var services = new ServiceCollection(); + services.AddSingleton>(handler); + services.AddSingleton(bus); + var provider = services.BuildServiceProvider(); + + var processor = new HandlerProcessor(BuildRegistry(typeof(TestHpMsg)), NewScope(provider), new Lazy(() => bus), DefaultBusConfig, DefaultQueueConfig, new ConsumeContextPool(), accessor, Microsoft.Extensions.Logging.Abstractions.NullLogger.Instance); + var correlationId = Guid.NewGuid(); + var headers = new Dictionary + { + ["Custom"] = "value", + [HeaderKeys.MessageId] = "managed-message-id" + }; + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + await processor.ProcessAsync(new byte[] { 1 }, typeof(TestHpMsg), new TestHpMsg(correlationId), headers, envelope); + await bus.RequestTimeoutAsync(correlationId, TimeSpan.FromMinutes(2)); + + Assert.Equal(2, timeoutStore.Inserted.Count); + Assert.Equal("value", timeoutStore.Inserted[0].Headers["Custom"]); + Assert.False(timeoutStore.Inserted[0].Headers.ContainsKey(HeaderKeys.MessageId)); + Assert.Empty(timeoutStore.Inserted[1].Headers); + } + + [Fact] + public async Task ProcessAsync_FirstHandlerThrows_RemainingHandlersStillRun() + { + // Handler A throws, B records, C throws — all three should run despite the faults. + var handlerA = new ThrowingHpHandler("handler-A error"); + var handlerB = new RecordingHpHandler(); + var handlerC = new ThrowingHpHandler("handler-C error"); + + var mockBus = new Mock(); + var services = new ServiceCollection(); + services.AddSingleton>(handlerA); + services.AddSingleton>(handlerB); + services.AddSingleton>(handlerC); + services.AddSingleton(mockBus.Object); + var provider = services.BuildServiceProvider(); + + var processor = new HandlerProcessor(BuildRegistry(typeof(TestHpMsg)), NewScope(provider), new Lazy(() => mockBus.Object), DefaultBusConfig, DefaultQueueConfig, new ConsumeContextPool(), new ConsumeContextAccessor(), Microsoft.Extensions.Logging.Abstractions.NullLogger.Instance); + var msg = new TestHpMsg(Guid.NewGuid()); + var headers = new Dictionary(); + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + var ex = await Assert.ThrowsAsync( + () => processor.ProcessAsync(new byte[] { 1 }, typeof(TestHpMsg), msg, headers, envelope)); + + // Both throwing handlers must have contributed their exception. + Assert.Equal(2, ex.InnerExceptions.Count); + Assert.Contains(ex.InnerExceptions, e => e.Message == "handler-A error"); + Assert.Contains(ex.InnerExceptions, e => e.Message == "handler-C error"); + + // All three handlers must have been invoked — independent faults must not short-circuit. + Assert.True(handlerA.Invoked); + Assert.True(handlerB.Invoked); + Assert.True(handlerC.Invoked); + } + + [Fact] + public async Task ProcessAsync_FirstHandlerThrowsOCE_RemainingHandlersSkipped() + { + // Handler A throws OperationCanceledException for the dispatch CT — shutdown path + // must short-circuit cleanly and not invoke B or C. + using var cts = new CancellationTokenSource(); + await cts.CancelAsync(); + + var handlerA = new CancellingHpHandler(cts.Token); + var handlerB = new RecordingHpHandler(); + var handlerC = new RecordingHpHandler(); + + var mockBus = new Mock(); + var services = new ServiceCollection(); + services.AddSingleton>(handlerA); + services.AddSingleton>(handlerB); + services.AddSingleton>(handlerC); + services.AddSingleton(mockBus.Object); + var provider = services.BuildServiceProvider(); + + var processor = new HandlerProcessor(BuildRegistry(typeof(TestHpMsg)), NewScope(provider), new Lazy(() => mockBus.Object), DefaultBusConfig, DefaultQueueConfig, new ConsumeContextPool(), new ConsumeContextAccessor(), Microsoft.Extensions.Logging.Abstractions.NullLogger.Instance); + var msg = new TestHpMsg(Guid.NewGuid()); + var headers = new Dictionary(); + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + // ProcessAsync itself will throw before the loop because cancellationToken.ThrowIfCancellationRequested() + // is called at entry. Use a fresh, already-cancelled token for the OCE inside the handler test. + // Pass non-cancelled CT to the processor so it gets past the guard; the handler throws its own OCE + // tied to cts.Token which is already cancelled. + await Assert.ThrowsAsync( + () => processor.ProcessAsync(new byte[] { 1 }, typeof(TestHpMsg), msg, headers, envelope, cts.Token)); + + // Because cts.Token is cancelled, ProcessAsync throws at entry — handler A hasn't run yet. + // This validates that a cancelled dispatch CT never reaches the loop. + Assert.False(handlerA.Invoked); + Assert.False(handlerB.Invoked); + Assert.False(handlerC.Invoked); + } + + [Fact] + public async Task ProcessAsync_HandlerThrowsOCE_OnNonCancelledCT_IsTreatedAsFault() + { + // The dispatch CT is not cancelled, but handler A throws OCE bound to a + // different (already-cancelled) token. Because the dispatch CT is not + // cancelled, the in-loop `when` filter evaluates to false, so the OCE + // falls through to the general catch and is aggregated. Handler B must + // still run — independent faults must not short-circuit the loop. + using var unrelatedCts = new CancellationTokenSource(); + await unrelatedCts.CancelAsync(); + + var handlerA = new CancellingHpHandler(unrelatedCts.Token); + var handlerB = new RecordingHpHandler(); + + var mockBus = new Mock(); + var services = new ServiceCollection(); + services.AddSingleton>(handlerA); + services.AddSingleton>(handlerB); + services.AddSingleton(mockBus.Object); + var provider = services.BuildServiceProvider(); + + var processor = new HandlerProcessor(BuildRegistry(typeof(TestHpMsg)), NewScope(provider), new Lazy(() => mockBus.Object), DefaultBusConfig, DefaultQueueConfig, new ConsumeContextPool(), new ConsumeContextAccessor(), Microsoft.Extensions.Logging.Abstractions.NullLogger.Instance); + var msg = new TestHpMsg(Guid.NewGuid()); + var headers = new Dictionary(); + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + using var dispatchCts = new CancellationTokenSource(); // intentionally not cancelled + var ex = await Assert.ThrowsAsync( + () => processor.ProcessAsync(new byte[] { 1 }, typeof(TestHpMsg), msg, headers, envelope, dispatchCts.Token)); + + // The OCE from handler A must be captured as a handler fault. + Assert.Single(ex.InnerExceptions); + Assert.IsAssignableFrom(ex.InnerExceptions[0]); + + // Both handlers must have been invoked — the OCE is a fault, not a shutdown signal. + Assert.True(handlerA.Invoked); + Assert.True(handlerB.Invoked); + } + + [Fact] + public async Task ProcessAsync_HandlerAThrowsNonOce_HandlerBThrowsOce_DispatchCtCancelled_ThrowsOce() + { + // Handler A throws a non-OCE fault; handler B throws OCE linked to the dispatch CT. + // Because the dispatch CT is cancelled when handler B's OCE is caught, the in-loop + // when-guard rethrows it directly — the post-loop OCE-prefer path is a safety net + // for the race where the guard evaluates false but the CT is cancelled by loop-end. + // Either way, the caller must observe OCE (not AggregateException wrapping OCE). + using var dispatchCts = new CancellationTokenSource(); + + var handlerA = new ThrowingHpHandler("fail-A"); + var handlerB = new OceThrowerUsingDispatchCtHandler(dispatchCts); + + var mockBus = new Mock(); + var services = new ServiceCollection(); + services.AddSingleton>(handlerA); + services.AddSingleton>(handlerB); + services.AddSingleton(mockBus.Object); + var provider = services.BuildServiceProvider(); + + var processor = new HandlerProcessor(BuildRegistry(typeof(TestHpMsg)), NewScope(provider), new Lazy(() => mockBus.Object), DefaultBusConfig, DefaultQueueConfig, new ConsumeContextPool(), new ConsumeContextAccessor(), Microsoft.Extensions.Logging.Abstractions.NullLogger.Instance); + var msg = new TestHpMsg(Guid.NewGuid()); + var headers = new Dictionary(); + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + await Assert.ThrowsAsync( + () => processor.ProcessAsync(new byte[] { 1 }, typeof(TestHpMsg), msg, headers, envelope, dispatchCts.Token)); + } + + [Fact] + public async Task ProcessAsync_OceInHandlerExceptions_WithCancelledCt_PrefersOceOverAggregateException() + { + // Verifies the Shape-A post-loop path: OCE from handler B ends up in handlerExceptions + // because the when-guard evaluated false at catch time, but the dispatch CT is cancelled + // by loop-end (handler B cancelled it). The post-loop OCE-prefer logic must surface + // the OCE directly rather than wrapping it in AggregateException. + using var dispatchCts = new CancellationTokenSource(); + using var unrelatedCts = new CancellationTokenSource(); + await unrelatedCts.CancelAsync(); + + // Handler A throws a plain fault so handlerExceptions is non-null by the time handler B runs. + var handlerA = new ThrowingHpHandler("fail-A"); + // Handler B: cancels the dispatch CTS, then throws OCE for the unrelated token. + // The when-guard (dispatchCt.IsCancellationRequested) evaluates true at the point handler B + // throws because handler B itself cancels the dispatch CTS first — so this test actually + // exercises the in-loop rethrow, not Shape A. Shape A is the safety net for the race. + // Both paths must produce OCE, not AggregateException. + var handlerB = new CancelDispatchThenThrowOceHandler(dispatchCts, unrelatedCts.Token); + + var mockBus = new Mock(); + var services = new ServiceCollection(); + services.AddSingleton>(handlerA); + services.AddSingleton>(handlerB); + services.AddSingleton(mockBus.Object); + var provider = services.BuildServiceProvider(); + + var processor = new HandlerProcessor(BuildRegistry(typeof(TestHpMsg)), NewScope(provider), new Lazy(() => mockBus.Object), DefaultBusConfig, DefaultQueueConfig, new ConsumeContextPool(), new ConsumeContextAccessor(), Microsoft.Extensions.Logging.Abstractions.NullLogger.Instance); + var msg = new TestHpMsg(Guid.NewGuid()); + var headers = new Dictionary(); + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + await Assert.ThrowsAsync( + () => processor.ProcessAsync(new byte[] { 1 }, typeof(TestHpMsg), msg, headers, envelope, dispatchCts.Token)); + } + + [Fact] + public async Task ProcessAsync_PassesCancellationTokenToHandler() + { + var ctReceived = new TaskCompletionSource(); + var handler = new CtRecordingHandler(ctReceived); + var mockBus = new Mock(); + var services = new ServiceCollection(); + services.AddSingleton>(handler); + services.AddSingleton(mockBus.Object); + var provider = services.BuildServiceProvider(); + + var refs = new List { new() { MessageType = typeof(CtMsg), HandlerType = typeof(CtRecordingHandler) } }; + var registry = new MessageHandlerRegistry(refs, NullLogger.Instance); + var processor = new HandlerProcessor(registry, NewScope(provider), new Lazy(() => mockBus.Object), DefaultBusConfig, DefaultQueueConfig, new ConsumeContextPool(), new ConsumeContextAccessor(), Microsoft.Extensions.Logging.Abstractions.NullLogger.Instance); + var msg = new CtMsg(); + var headers = new Dictionary(); + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + using var cts = new CancellationTokenSource(); + await processor.ProcessAsync(new byte[] { 1 }, typeof(CtMsg), msg, headers, envelope, cts.Token); + var observed = await ctReceived.Task.WaitAsync(TimeSpan.FromSeconds(1)); + Assert.Equal(cts.Token, observed); + } + + private static MessageHandlerRegistry BuildRegistry(params Type[] messageTypes) + { + var refs = messageTypes + .Select(mt => new HandlerReference { MessageType = mt, HandlerType = typeof(TestHpHandler) }) + .ToList(); + return new MessageHandlerRegistry( + refs, + NullLogger.Instance); + } +} + +file class TestHpMsg(Guid correlationId) : Message(correlationId) +{ +} + +// Throws a fixed exception message on every invocation — used to verify fault collection. +file sealed class ThrowingHpHandler(string errorMessage) : IMessageHandler +{ + public bool Invoked { get; private set; } + + public Task HandleAsync(TestHpMsg message, IConsumeContext context, CancellationToken cancellationToken = default) + { + Invoked = true; + throw new InvalidOperationException(errorMessage); + } +} + +// Records invocation without throwing — used to verify it still runs despite sibling faults. +file sealed class RecordingHpHandler : IMessageHandler +{ + public bool Invoked { get; private set; } + + public Task HandleAsync(TestHpMsg message, IConsumeContext context, CancellationToken cancellationToken = default) + { + Invoked = true; + return Task.CompletedTask; + } +} + +// Throws OperationCanceledException for the given token — used to exercise the OCE short-circuit path. +file sealed class CancellingHpHandler(CancellationToken token) : IMessageHandler +{ + public bool Invoked { get; private set; } + + public Task HandleAsync(TestHpMsg message, IConsumeContext context, CancellationToken cancellationToken = default) + { + Invoked = true; + token.ThrowIfCancellationRequested(); + return Task.CompletedTask; + } +} + +file class TestHpHandler : IMessageHandler +{ + public bool Invoked { get; private set; } + // Capture context state during handler execution — the context parameter is only + // valid for the duration of HandleAsync; capturing the reference itself is sufficient here. + public IBus? ObservedBus { get; private set; } + public IReadOnlyDictionary? ObservedHeaders { get; private set; } + public bool ContextWasReceived { get; private set; } + + public Task HandleAsync(TestHpMsg message, IConsumeContext context, CancellationToken cancellationToken = default) + { + Invoked = true; + if (context != null) + { + ContextWasReceived = true; + ObservedBus = context.Bus; + ObservedHeaders = new Dictionary(context.Headers); + } + return Task.CompletedTask; + } +} + +file sealed class TimeoutRequestingHandler(IBus bus) : IMessageHandler +{ + public Task HandleAsync(TestHpMsg message, IConsumeContext context, CancellationToken cancellationToken = default) + => bus.RequestTimeoutAsync(message.CorrelationId, TimeSpan.FromMinutes(1)); +} + +file sealed class CapturingTimeoutStore : ITimeoutStore +{ + public List Inserted { get; } = []; + + public Task InsertTimeoutAsync(TimeoutData data, CancellationToken cancellationToken = default) + { + Inserted.Add(new TimeoutData + { + Id = data.Id, + Destination = data.Destination, + ProcessManagerId = data.ProcessManagerId, + Time = data.Time, + Headers = new Dictionary(data.Headers) + }); + return Task.CompletedTask; + } + + public Task GetTimeoutsBatchAsync(int? batchSize = null, CancellationToken cancellationToken = default) + => throw new NotSupportedException(); + + public Task RemoveDispatchedTimeoutAsync(Guid id, Guid? lockOwner = null, CancellationToken cancellationToken = default) + => throw new NotSupportedException(); + + public Task ReleaseDispatchedTimeoutAsync(Guid id, Guid? lockOwner = null, CancellationToken cancellationToken = default) + => throw new NotSupportedException(); +} + +file static class TestBusFactory +{ + public static Bus Create(IQueueConfiguration queueConfiguration, ITimeoutStore timeoutStore, ConsumeContextAccessor accessor) + { + var serializer = new Mock(); + serializer.SetupSerializeAny([1]); + + var filterPipeline = new Mock(); + var sendPipeline = new Mock(); + var requestReplyManager = new Mock(); + var logger = new Mock>(); + var dispatcher = new Mock(); + var pipelineConfiguration = new Mock(); + pipelineConfiguration.Setup(x => x.OutgoingFilters).Returns([]); + + var rootProvider = new ServiceCollection().BuildServiceProvider(); + return new Bus( + serializer.Object, + filterPipeline.Object, + sendPipeline.Object, + requestReplyManager.Object, + logger.Object, + queueConfiguration, + dispatcher.Object, + [], + pipelineConfiguration.Object, + rootProvider.GetRequiredService(), + new ConsumeScopeAccessor(), + timeoutStore: timeoutStore, + consumeContextAccessor: accessor); + } +} + +// Records the CancellationToken received by HandleAsync so the test can assert it +// is the same token that was passed into ProcessAsync. +file sealed class CtRecordingHandler(TaskCompletionSource tcs) + : IMessageHandler +{ + public Task HandleAsync(CtMsg message, IConsumeContext context, CancellationToken cancellationToken = default) + { + tcs.TrySetResult(cancellationToken); + return Task.CompletedTask; + } +} + +file sealed class CtMsg : Message +{ + public CtMsg() : base(Guid.NewGuid()) { } +} + +// Cancels the dispatch CTS then throws OCE for the dispatch CT — exercises the in-loop +// OCE short-circuit where cancellationToken.IsCancellationRequested is true at catch time. +file sealed class OceThrowerUsingDispatchCtHandler(CancellationTokenSource dispatchCts) : IMessageHandler +{ + public Task HandleAsync(TestHpMsg message, IConsumeContext context, CancellationToken cancellationToken = default) + { + dispatchCts.Cancel(); + cancellationToken.ThrowIfCancellationRequested(); + return Task.CompletedTask; + } +} + +// Cancels the dispatch CTS, then throws OCE for an unrelated token. The when-guard on the dispatch +// CT evaluates true (handler just cancelled it), so this still exercises the direct-rethrow path. +// Both OCE paths (in-loop and post-loop) must surface OCE, not AggregateException. +file sealed class CancelDispatchThenThrowOceHandler(CancellationTokenSource dispatchCts, CancellationToken unrelatedToken) : IMessageHandler +{ + public Task HandleAsync(TestHpMsg message, IConsumeContext context, CancellationToken cancellationToken = default) + { + dispatchCts.Cancel(); + unrelatedToken.ThrowIfCancellationRequested(); + return Task.CompletedTask; + } +} diff --git a/src/ServiceConnect.UnitTests/Processors/MessageHandlerRegistryTests.cs b/src/ServiceConnect.UnitTests/Processors/MessageHandlerRegistryTests.cs new file mode 100644 index 000000000..20f34a111 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Processors/MessageHandlerRegistryTests.cs @@ -0,0 +1,187 @@ +using Microsoft.Extensions.Logging.Abstractions; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; +using ServiceConnect.Services.Processors; +using Xunit; + +namespace ServiceConnect.UnitTests.Processors; + +public class MessageHandlerRegistryTests +{ + [Fact] + public void TryGetOrBuild_ReturnsTrue_ForRegisteredMessageType() + { + var refs = new List + { + new() { MessageType = typeof(MhrFooMsg), HandlerType = typeof(MhrFooHandler) } + }; + var registry = new MessageHandlerRegistry(refs, NullLogger.Instance); + + Assert.True(registry.TryGetOrBuild(typeof(MhrFooMsg), out var descriptor)); + Assert.Equal(typeof(MhrFooMsg), descriptor!.MessageType); + Assert.Equal(typeof(IMessageHandler), descriptor.HandlerInterfaceType); + } + + [Fact] + public void Construction_IgnoresNonMessageHandlers() + { + var refs = new List + { + new() { MessageType = typeof(MhrFooMsg), HandlerType = typeof(MhrProcessHandler) }, + new() { MessageType = typeof(MhrFooMsg), HandlerType = typeof(MhrStreamHandler) } + }; + var registry = new MessageHandlerRegistry(refs, NullLogger.Instance); + + // Neither process nor stream handler should register an IMessageHandler descriptor + Assert.False(registry.TryGetOrBuild(typeof(MhrFooMsg), out _)); + } + + [Fact] + public void Construction_DoesNotThrow_OnMultipleHandlersForSameMessage() + { + // Two different handler classes for one message type is legitimate; descriptor describes interface not instance + var refs = new List + { + new() { MessageType = typeof(MhrFooMsg), HandlerType = typeof(MhrFooHandler) }, + new() { MessageType = typeof(MhrFooMsg), HandlerType = typeof(MhrSecondFooHandler) } + }; + + var registry = new MessageHandlerRegistry(refs, NullLogger.Instance); + + Assert.True(registry.TryGetOrBuild(typeof(MhrFooMsg), out _)); + } + + [Fact] + public void TryGetOrBuild_LazilyBuilds_ForUnregisteredMessageType() + { + var registry = new MessageHandlerRegistry( + [], + NullLogger.Instance); + + Assert.True(registry.TryGetOrBuild(typeof(MhrFooMsg), out var descriptor)); + Assert.Equal(typeof(IMessageHandler), descriptor!.HandlerInterfaceType); + } + + [Fact] + public void TryGetOrBuild_ReturnsFalse_ForMessageBaseType() + { + var registry = new MessageHandlerRegistry( + [], + NullLogger.Instance); + + Assert.False(registry.TryGetOrBuild(typeof(Message), out var descriptor)); + Assert.Null(descriptor); + } + + [Fact] + public void TryGetOrBuild_ReturnsFalse_ForObject() + { + var registry = new MessageHandlerRegistry( + [], + NullLogger.Instance); + + Assert.False(registry.TryGetOrBuild(typeof(object), out _)); + } + + [Fact] + public async Task Descriptor_InvokeHandleAsync_PassesMessageAndContext() + { + var registry = BuildRegistry(); + Assert.True(registry.TryGetOrBuild(typeof(MhrFooMsg), out var descriptor)); + + var handler = new MhrFooHandler(); + var msg = new MhrFooMsg(Guid.NewGuid()); + var ctx = new MhrFakeConsumeContext(); + + await descriptor!.InvokeHandleAsync(handler, msg, ctx, CancellationToken.None); + + Assert.Same(msg, handler.Received); + Assert.Same(ctx, handler.ReceivedContext); + } + + [Fact] + public void TryGetOrBuild_CachesNegativeResults() + { + var registry = new MessageHandlerRegistry( + [], + NullLogger.Instance); + + // Hit the unbuildable type twice; both return false without crashing + Assert.False(registry.TryGetOrBuild(typeof(Message), out _)); + Assert.False(registry.TryGetOrBuild(typeof(Message), out _)); + } + + [Fact] + public void Construction_Throws_WhenHandlerImplementsIMessageHandlerOfMessage() + { + // IMessageHandler is the catch-all base type. The dispatch walk in + // HandlerProcessor stops at typeof(Message), so registering such a handler + // succeeds silently but the handler is never invoked. Reject at registry build. + var refs = new List + { + new() { MessageType = typeof(Message), HandlerType = typeof(MhrCatchAllMessageHandler) } + }; + + var ex = Assert.Throws(() => + new MessageHandlerRegistry(refs, NullLogger.Instance)); + + Assert.Contains(typeof(MhrCatchAllMessageHandler).FullName!, ex.Message, StringComparison.Ordinal); + Assert.Contains("IMessageHandler", ex.Message, StringComparison.Ordinal); + } + + private static MessageHandlerRegistry BuildRegistry() + { + var refs = new List + { + new() { MessageType = typeof(MhrFooMsg), HandlerType = typeof(MhrFooHandler) } + }; + return new MessageHandlerRegistry(refs, NullLogger.Instance); + } +} + +file class MhrFooMsg(Guid c) : Message(c) { +} +file class MhrBarData : IProcessManagerData { public Guid CorrelationId { get; set; } } + +file class MhrFooHandler : IMessageHandler +{ + public MhrFooMsg? Received { get; private set; } + public IConsumeContext? ReceivedContext { get; private set; } + public Task HandleAsync(MhrFooMsg message, IConsumeContext context, CancellationToken cancellationToken = default) + { + Received = message; + ReceivedContext = context; + return Task.CompletedTask; + } +} + +file class MhrSecondFooHandler : IMessageHandler +{ + public Task HandleAsync(MhrFooMsg message, IConsumeContext context, CancellationToken cancellationToken = default) => Task.CompletedTask; +} + +file class MhrProcessHandler : IProcessHandler +{ + public Task HandleAsync(MhrFooMsg message, MhrBarData data, IConsumeContext context, CancellationToken cancellationToken = default) => Task.CompletedTask; +} + +file class MhrStreamHandler : IStreamHandler +{ + public Task ExecuteAsync(MhrFooMsg message, IMessageBusReadStream stream, CancellationToken cancellationToken = default) => Task.CompletedTask; +} + +file class MhrCatchAllMessageHandler : IMessageHandler +{ + public Task HandleAsync(Message message, IConsumeContext context, CancellationToken cancellationToken = default) => Task.CompletedTask; +} + +file class MhrFakeConsumeContext : IConsumeContext +{ + public IBus Bus => throw new NotImplementedException(); + public IReadOnlyDictionary Headers { get; set; } = new Dictionary(); + public string? MessageId => null; + public Guid CorrelationId => Guid.Empty; + public CancellationToken CancellationToken { get; set; } + public Task ReplyAsync(TReply message, ReplyOptions? options = null, CancellationToken cancellationToken = default) where TReply : Message + => throw new NotImplementedException(); +} diff --git a/src/ServiceConnect.UnitTests/Processors/ProcessManagerHandlerRegistryTests.cs b/src/ServiceConnect.UnitTests/Processors/ProcessManagerHandlerRegistryTests.cs new file mode 100644 index 000000000..f2d7bd4e8 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Processors/ProcessManagerHandlerRegistryTests.cs @@ -0,0 +1,275 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; +using ServiceConnect.Services.Processors; +using Xunit; + +namespace ServiceConnect.UnitTests.Processors; + +public class ProcessManagerHandlerRegistryTests +{ + [Fact] + public void TryGet_ReturnsDescriptor_ForRegisteredMessageType() + { + var refs = new List + { + new() { MessageType = typeof(FooMessage), HandlerType = typeof(FooHandler) } + }; + + var registry = new ProcessManagerHandlerRegistry(refs, NullLogger.Instance); + + Assert.True(registry.TryGet(typeof(FooMessage), out var descriptor)); + Assert.Equal(typeof(FooMessage), descriptor!.MessageType); + Assert.Equal(typeof(FooData), descriptor.DataType); + Assert.Equal(typeof(IProcessHandler), descriptor.ProcessHandlerInterfaceType); + } + + [Fact] + public void TryGet_ReturnsFalse_ForUnknownMessageType() + { + var registry = new ProcessManagerHandlerRegistry( + [], + NullLogger.Instance); + + Assert.False(registry.TryGet(typeof(FooMessage), out var descriptor)); + Assert.Null(descriptor); + } + + [Fact] + public void Construction_IgnoresNonProcessHandlers() + { + var refs = new List + { + new() { MessageType = typeof(FooMessage), HandlerType = typeof(PlainFooHandler) } + }; + + var registry = new ProcessManagerHandlerRegistry(refs, NullLogger.Instance); + + Assert.False(registry.TryGet(typeof(FooMessage), out _)); + } + + [Fact] + public void Construction_ThrowsOnDuplicateMessageMapping() + { + var refs = new List + { + new() { MessageType = typeof(FooMessage), HandlerType = typeof(FooHandler) }, + new() { MessageType = typeof(FooMessage), HandlerType = typeof(SecondFooHandler) } + }; + + var ex = Assert.Throws(() => + new ProcessManagerHandlerRegistry(refs, NullLogger.Instance)); + + Assert.Contains(nameof(FooMessage), ex.Message); + } + + [Fact] + public void Descriptor_CreateData_CreatesFreshInstance() + { + var registry = BuildFooRegistry(); + Assert.True(registry.TryGet(typeof(FooMessage), out var descriptor)); + + var a = descriptor!.CreateData(); + var b = descriptor.CreateData(); + + Assert.IsType(a); + Assert.NotSame(a, b); + } + + [Fact] + public void Descriptor_SetCorrelationId_WritesProperty() + { + var registry = BuildFooRegistry(); + Assert.True(registry.TryGet(typeof(FooMessage), out var descriptor)); + + var data = descriptor!.CreateData(); + var correlationId = Guid.NewGuid(); + descriptor.SetCorrelationId(data, correlationId); + + Assert.Equal(correlationId, data.CorrelationId); + } + + [Fact] + public void Descriptor_ConfigureMapper_InvokesHandlerConfigureMapper() + { + var registry = BuildFooRegistry(); + Assert.True(registry.TryGet(typeof(FooMessage), out var descriptor)); + + var handler = new FooHandler(); + var mapper = new DefaultProcessManagerPropertyMapperStub(); + descriptor!.ConfigureMapper(handler, mapper); + + // FooHandler uses the default interface method which adds one mapping (CorrelationId → CorrelationId). + Assert.Single(mapper.Mappings); + } + + [Fact] + public async Task Descriptor_InvokeHandleAsync_PassesMessageDataAndContext() + { + var registry = BuildFooRegistry(); + Assert.True(registry.TryGet(typeof(FooMessage), out var descriptor)); + + var handler = new FooHandler(); + var msg = new FooMessage(Guid.NewGuid()); + var data = new FooData { CorrelationId = Guid.NewGuid() }; + var ctx = new FakeConsumeContext(); + + await descriptor!.InvokeHandleAsync(handler, msg, data, ctx, CancellationToken.None); + + Assert.Same(msg, handler.ReceivedMessage); + Assert.Same(data, handler.ReceivedData); + Assert.Same(ctx, handler.ReceivedContext); + } + + [Fact] + public void Descriptor_ExtractData_ReadsDataProperty() + { + var registry = BuildFooRegistry(); + Assert.True(registry.TryGet(typeof(FooMessage), out var descriptor)); + + var data = new FooData(); + var persistence = new FooPersistenceData { Data = data }; + + var result = descriptor.ExtractData(persistence); + + Assert.Same(data, result); + } + + [Fact] + public async Task Descriptor_FindData_ReturnsNullFromFinder_WhenNoPersistence() + { + var registry = BuildFooRegistry(); + Assert.True(registry.TryGet(typeof(FooMessage), out var descriptor)); + + var finder = new Mock(); + finder.Setup(f => f.FindDataAsync( + It.IsAny(), + It.IsAny(), + It.IsAny())) + .ReturnsAsync((IPersistenceData?)null); + + var mapper = new DefaultProcessManagerPropertyMapperStub(); + var result = await descriptor!.FindData(finder.Object, mapper, new FooMessage(Guid.NewGuid()), CancellationToken.None); + + Assert.Null(result); + finder.Verify(f => f.FindDataAsync( + It.IsAny(), + It.IsAny(), + It.IsAny()), Times.Once); + } + + [Fact] + public async Task Descriptor_FindData_ReturnsPersistence_WhenFinderReturnsData() + { + var registry = BuildFooRegistry(); + Assert.True(registry.TryGet(typeof(FooMessage), out var descriptor)); + + var persistence = new FooPersistenceData { Data = new FooData { CorrelationId = Guid.NewGuid() } }; + var finder = new Mock(); + finder.Setup(f => f.FindDataAsync( + It.IsAny(), + It.IsAny(), + It.IsAny())) + .ReturnsAsync(persistence); + + var mapper = new DefaultProcessManagerPropertyMapperStub(); + var result = await descriptor!.FindData(finder.Object, mapper, new FooMessage(Guid.NewGuid()), CancellationToken.None); + + Assert.Same(persistence, result); + } + + [Fact] + public async Task Descriptor_UpdateData_CallsFinderWithPersistenceObject() + { + var registry = BuildFooRegistry(); + Assert.True(registry.TryGet(typeof(FooMessage), out var descriptor)); + + var persistence = new FooPersistenceData { Data = new FooData() }; + var finder = new Mock(); + finder.Setup(f => f.UpdateDataAsync( + It.IsAny>(), + It.IsAny())) + .Returns(Task.CompletedTask); + + await descriptor!.UpdateData(finder.Object, persistence, CancellationToken.None); + + finder.Verify(f => f.UpdateDataAsync(persistence, It.IsAny()), Times.Once); + } + + private static ProcessManagerHandlerRegistry BuildFooRegistry() + { + var refs = new List + { + new() { MessageType = typeof(FooMessage), HandlerType = typeof(FooHandler) } + }; + return new ProcessManagerHandlerRegistry(refs, NullLogger.Instance); + } +} + +file class FooMessage : Message +{ + public FooMessage() : base(Guid.Empty) { } + public FooMessage(Guid correlationId) : base(correlationId) { } +} + +file class FooData : IProcessManagerData +{ + public Guid CorrelationId { get; set; } +} + +file class FooPersistenceData : IPersistenceData +{ + public FooData Data { get; set; } = new(); +} + +file class FooHandler : IProcessHandler +{ + public FooMessage? ReceivedMessage { get; private set; } + public FooData? ReceivedData { get; private set; } + public IConsumeContext? ReceivedContext { get; private set; } + + public Task HandleAsync(FooMessage message, FooData data, IConsumeContext context, CancellationToken cancellationToken = default) + { + ReceivedMessage = message; + ReceivedData = data; + ReceivedContext = context; + return Task.CompletedTask; + } +} + +file class SecondFooHandler : IProcessHandler +{ + public Task HandleAsync(FooMessage message, FooData data, IConsumeContext context, CancellationToken cancellationToken = default) => Task.CompletedTask; +} + +file class PlainFooHandler : IMessageHandler +{ + public Task HandleAsync(FooMessage message, IConsumeContext context, CancellationToken cancellationToken = default) => Task.CompletedTask; +} + +file class FakeConsumeContext : IConsumeContext +{ + public IBus Bus => throw new NotImplementedException(); + public IReadOnlyDictionary Headers { get; set; } = new Dictionary(); + public string? MessageId => null; + public Guid CorrelationId => Guid.Empty; + public CancellationToken CancellationToken { get; set; } + public Task ReplyAsync(TReply message, ReplyOptions? options = null, CancellationToken cancellationToken = default) where TReply : Message + => throw new NotImplementedException(); +} + +file class DefaultProcessManagerPropertyMapperStub : IProcessManagerPropertyMapper +{ + private readonly List _mappings = []; + public IReadOnlyList Mappings => _mappings; + + public void ConfigureMapping( + System.Linq.Expressions.Expression> processManagerProperty, + System.Linq.Expressions.Expression> messageExpression) + where TProcessManagerData : IProcessManagerData + where TMessage : Message + { + _mappings.Add(new ProcessManagerToMessageMap { MessageType = typeof(TMessage), MessageProp = _ => null! }); + } +} diff --git a/src/ServiceConnect.UnitTests/Processors/ProcessManagerProcessorCooperativeShutdownTests.cs b/src/ServiceConnect.UnitTests/Processors/ProcessManagerProcessorCooperativeShutdownTests.cs new file mode 100644 index 000000000..16345ca56 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Processors/ProcessManagerProcessorCooperativeShutdownTests.cs @@ -0,0 +1,175 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using ServiceConnect; +using ServiceConnect.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Services; +using ServiceConnect.Services.Processors; +using Xunit; + +namespace ServiceConnect.UnitTests.Processors; + +public class ProcessManagerProcessorCooperativeShutdownTests +{ + [Fact] + public async Task ProcessAsync_HandlerObservesCooperativeCancel_DoesNotLogError() + { + // The handler observes the dispatcher's cancellation token and throws OCE. + // Pre-fix this hit the generic catch and was logged at LogError. Post-fix the + // explicit OCE catch with the IsCancellationRequested filter rethrows + // without logging. + var capturingLogger = new PmShutdownCapturingLogger(); + + var (services, _, mockFinder) = CreateBaseServices(); + var handler = new CooperativeCancelHandler(); + services.AddSingleton>(handler); + var provider = services.BuildServiceProvider(); + + var registry = BuildRegistry(new HandlerReference + { + MessageType = typeof(PmShutdownMessage), + HandlerType = typeof(CooperativeCancelHandler) + }); + + var accessor = new ConsumeScopeAccessor(); + using var _scope = accessor.Push(provider); + + // Make FindDataAsync return null (new saga) so the handler is invoked. + mockFinder.Setup(f => f.FindDataAsync( + It.IsAny(), It.IsAny(), It.IsAny())) + .ReturnsAsync((IPersistenceData?)null); + + var processor = new ProcessManagerProcessor( + registry, accessor, new Lazy(() => new Mock().Object), + capturingLogger, + new BusConfiguration(), + new QueueConfiguration { QueueName = "q", ErrorQueueName = "errors", AuditQueueName = "audit" }, + new ConsumeContextPool(), + new ConsumeContextAccessor()); + + var msg = new PmShutdownMessage(Guid.NewGuid()); + using var cts = new CancellationTokenSource(); + cts.Cancel(); + + await Assert.ThrowsAsync(() => + processor.ProcessAsync(new byte[] { 1 }, typeof(PmShutdownMessage), msg, + new Dictionary(), new Envelope(), cts.Token)); + + // No LogError entry was emitted for the cooperative shutdown. + Assert.DoesNotContain(capturingLogger.Entries, + e => e.Level == LogLevel.Error && e.Message.Contains("handler threw")); + } + + [Fact] + public async Task ProcessAsync_HandlerThrowsForeignOce_StillLogsError() + { + // A handler whose own internal timeout (NOT the dispatcher CT) fires throws OCE + // — that's a real failure, not cooperative shutdown. The generic catch must + // still log it at LogError because cancellationToken.IsCancellationRequested + // is false. + var capturingLogger = new PmShutdownCapturingLogger(); + + var (services, _, mockFinder) = CreateBaseServices(); + var handler = new ForeignOceHandler(); + services.AddSingleton>(handler); + var provider = services.BuildServiceProvider(); + + var registry = BuildRegistry(new HandlerReference + { + MessageType = typeof(PmShutdownMessage), + HandlerType = typeof(ForeignOceHandler) + }); + + var accessor = new ConsumeScopeAccessor(); + using var _scope = accessor.Push(provider); + + // Make FindDataAsync return null (new saga) so the handler is invoked. + mockFinder.Setup(f => f.FindDataAsync( + It.IsAny(), It.IsAny(), It.IsAny())) + .ReturnsAsync((IPersistenceData?)null); + + var processor = new ProcessManagerProcessor( + registry, accessor, new Lazy(() => new Mock().Object), + capturingLogger, + new BusConfiguration(), + new QueueConfiguration { QueueName = "q", ErrorQueueName = "errors", AuditQueueName = "audit" }, + new ConsumeContextPool(), + new ConsumeContextAccessor()); + + var msg = new PmShutdownMessage(Guid.NewGuid()); + + await Assert.ThrowsAsync(() => + processor.ProcessAsync(new byte[] { 1 }, typeof(PmShutdownMessage), msg, + new Dictionary(), new Envelope(), CancellationToken.None)); + + // Foreign-CT OCE is a real failure — must be logged at LogError. + Assert.Contains(capturingLogger.Entries, + e => e.Level == LogLevel.Error && e.Message.Contains("handler threw")); + } + + private static (ServiceCollection services, Mock mockBus, Mock mockFinder) CreateBaseServices() + { + var services = new ServiceCollection(); + var mockBus = new Mock(); + var mockFinder = new Mock(); + services.AddSingleton(mockBus.Object); + services.AddSingleton(mockFinder.Object); + return (services, mockBus, mockFinder); + } + + private static ProcessManagerHandlerRegistry BuildRegistry(params HandlerReference[] refs) + => new([.. refs], NullLogger.Instance); + +} + +file sealed class CooperativeCancelHandler : IProcessHandler +{ + public void ConfigureMapper(IProcessManagerPropertyMapper mapper) { } + + public Task HandleAsync(PmShutdownMessage message, PmShutdownData data, IConsumeContext context, CancellationToken cancellationToken = default) + { + // Honour the dispatcher CT — same shape as a real long-running handler. + cancellationToken.ThrowIfCancellationRequested(); + return Task.CompletedTask; + } +} + +file sealed class ForeignOceHandler : IProcessHandler +{ + public void ConfigureMapper(IProcessManagerPropertyMapper mapper) { } + + public Task HandleAsync(PmShutdownMessage message, PmShutdownData data, IConsumeContext context, CancellationToken cancellationToken = default) + { + // Foreign cancellation source — NOT the dispatcher CT. This is a real failure. + using var foreignCts = new CancellationTokenSource(); + foreignCts.Cancel(); + throw new OperationCanceledException(foreignCts.Token); + } +} + +file class PmShutdownMessage(Guid correlationId) : Message(correlationId) +{ +} + +file class PmShutdownData : IProcessManagerData +{ + public Guid CorrelationId { get; set; } +} + +file sealed class PmShutdownCapturingLogger : ILogger +{ + public sealed record LogEntry(LogLevel Level, string Message, Exception? Exception); + public List Entries { get; } = []; + + IDisposable? ILogger.BeginScope(TState state) => null; + bool ILogger.IsEnabled(LogLevel logLevel) => true; + + void ILogger.Log(LogLevel logLevel, EventId eventId, TState state, Exception? exception, + Func formatter) + { + Entries.Add(new LogEntry(logLevel, formatter(state, exception), exception)); + } +} diff --git a/src/ServiceConnect.UnitTests/Processors/ProcessManagerProcessorReferenceEqualityTests.cs b/src/ServiceConnect.UnitTests/Processors/ProcessManagerProcessorReferenceEqualityTests.cs new file mode 100644 index 000000000..f716f6f76 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Processors/ProcessManagerProcessorReferenceEqualityTests.cs @@ -0,0 +1,44 @@ +using System; +using ServiceConnect.Services.Processors; +using Xunit; + +public class ProcessManagerProcessorReferenceEqualityTests +{ + private sealed class RefTypeNoEqualsOverride + { + public int Value { get; init; } + } + + private class RefTypeWithEqualsOverride + { + public int Value { get; init; } + public override bool Equals(object? obj) => obj is RefTypeWithEqualsOverride o && o.Value == Value; + public override int GetHashCode() => Value.GetHashCode(); + } + + private sealed class InheritsEqualsFromBase : RefTypeWithEqualsOverride { } + + [Theory] + [InlineData(typeof(string))] + [InlineData(typeof(Guid))] + [InlineData(typeof(int))] + [InlineData(typeof(long))] + [InlineData(typeof(decimal))] + [InlineData(typeof(DateTime))] + [InlineData(typeof(RefTypeWithEqualsOverride))] + [InlineData(typeof(DayOfWeek))] + [InlineData(typeof(int?))] + [InlineData(typeof(TimeSpan))] + [InlineData(typeof(InheritsEqualsFromBase))] + public void IsValueEqualType_ValueEqualTypes_ReturnsTrue(Type t) + => Assert.True(ProcessManagerProcessor.IsValueEqualType(t)); + + [Theory] + [InlineData(typeof(byte[]))] + [InlineData(typeof(int[]))] + [InlineData(typeof(RefTypeNoEqualsOverride))] + [InlineData(typeof(object))] + [InlineData(typeof(System.Collections.Generic.List))] + public void IsValueEqualType_ReferenceEqualityTypes_ReturnsFalse(Type t) + => Assert.False(ProcessManagerProcessor.IsValueEqualType(t)); +} diff --git a/src/ServiceConnect.UnitTests/Processors/ProcessManagerProcessorTests.cs b/src/ServiceConnect.UnitTests/Processors/ProcessManagerProcessorTests.cs new file mode 100644 index 000000000..58ca13c52 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Processors/ProcessManagerProcessorTests.cs @@ -0,0 +1,884 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using ServiceConnect; +using ServiceConnect.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Persistence.InMemory; +using ServiceConnect.Services; +using ServiceConnect.Services.Processors; +using ServiceConnect.UnitTests.Fakes; +using ServiceConnect.UnitTests.Persistence.InMemory; +using Xunit; + +namespace ServiceConnect.UnitTests.Processors; + +public class ProcessManagerProcessorTests +{ + private static readonly IBusConfiguration DefaultBusConfig = new BusConfiguration(); + private static readonly IQueueConfiguration DefaultQueueConfig = new QueueConfiguration + { + QueueName = "test-queue", + ErrorQueueName = "errors", + AuditQueueName = "audit" + }; + + private static (ServiceCollection services, Mock mockBus, Mock mockFinder) CreateBaseServices() + { + var services = new ServiceCollection(); + var mockBus = new Mock(); + var mockFinder = new Mock(); + services.AddSingleton(mockBus.Object); + services.AddSingleton(mockFinder.Object); + return (services, mockBus, mockFinder); + } + + private static ProcessManagerHandlerRegistry BuildRegistry(params HandlerReference[] refs) + => new([.. refs], NullLogger.Instance); + + private static (ConsumeScopeAccessor accessor, IDisposable scope) BuildScopeAccessor(IServiceProvider provider) + { + var accessor = new ConsumeScopeAccessor(); + var scope = accessor.Push(provider); + return (accessor, scope); + } + + [Fact] + public async Task ProcessAsync_NullMessage_ReturnsNotHandled() + { + var registry = BuildRegistry(); + var provider = new ServiceCollection().BuildServiceProvider(); + var (accessor, scopeHandle) = BuildScopeAccessor(provider); + using var _scopePm = scopeHandle; + var processor = new ProcessManagerProcessor(registry, accessor, new Lazy(() => new Mock().Object), NullLogger.Instance, DefaultBusConfig, DefaultQueueConfig, new ConsumeContextPool(), new ConsumeContextAccessor()); + + var result = await processor.ProcessAsync(new byte[] { 1 }, typeof(PmTestMessage), null, + new Dictionary(), new Envelope()); + + Assert.Equal(ProcessResult.NotHandled, result); + } + + [Fact] + public async Task ProcessAsync_NoDescriptor_ReturnsNotHandled() + { + var (services, _, _) = CreateBaseServices(); + var registry = BuildRegistry(); // empty + var provider = services.BuildServiceProvider(); + var (accessor, scopeHandle) = BuildScopeAccessor(provider); + using var _scopePm = scopeHandle; + var processor = new ProcessManagerProcessor(registry, accessor, new Lazy(() => new Mock().Object), NullLogger.Instance, DefaultBusConfig, DefaultQueueConfig, new ConsumeContextPool(), new ConsumeContextAccessor()); + + var msg = new PmTestMessage(Guid.NewGuid()) { Content = "x" }; + var result = await processor.ProcessAsync(new byte[] { 1 }, typeof(PmTestMessage), msg, + new Dictionary(), new Envelope()); + + Assert.Equal(ProcessResult.NotHandled, result); + } + + [Fact] + public async Task ProcessAsync_NoFinder_ReturnsNotHandled() + { + var services = new ServiceCollection(); + services.AddSingleton(new Mock().Object); + var registry = BuildRegistry(new HandlerReference + { + MessageType = typeof(PmTestMessage), + HandlerType = typeof(PmTestHandler) + }); + services.AddSingleton>(new PmTestHandler()); + var provider = services.BuildServiceProvider(); + var (accessor, scopeHandle) = BuildScopeAccessor(provider); + using var _scopePm = scopeHandle; + var processor = new ProcessManagerProcessor(registry, accessor, new Lazy(() => new Mock().Object), NullLogger.Instance, DefaultBusConfig, DefaultQueueConfig, new ConsumeContextPool(), new ConsumeContextAccessor()); + + var msg = new PmTestMessage(Guid.NewGuid()) { Content = "x" }; + var result = await processor.ProcessAsync(new byte[] { 1 }, typeof(PmTestMessage), msg, + new Dictionary(), new Envelope()); + + Assert.Equal(ProcessResult.NotHandled, result); + } + + [Fact] + public async Task ProcessAsync_NoHandlerInDi_ReturnsNotHandled() + { + var (services, _, _) = CreateBaseServices(); + var registry = BuildRegistry(new HandlerReference + { + MessageType = typeof(PmTestMessage), + HandlerType = typeof(PmTestHandler) + }); + var provider = services.BuildServiceProvider(); + var (accessor, scopeHandle) = BuildScopeAccessor(provider); + using var _scopePm = scopeHandle; + var processor = new ProcessManagerProcessor(registry, accessor, new Lazy(() => new Mock().Object), NullLogger.Instance, DefaultBusConfig, DefaultQueueConfig, new ConsumeContextPool(), new ConsumeContextAccessor()); + + var msg = new PmTestMessage(Guid.NewGuid()) { Content = "x" }; + var result = await processor.ProcessAsync(new byte[] { 1 }, typeof(PmTestMessage), msg, + new Dictionary(), new Envelope()); + + Assert.Equal(ProcessResult.NotHandled, result); + } + + [Fact] + public async Task ProcessAsync_NewData_InsertsAndReturnsHandled() + { + var (services, _, mockFinder) = CreateBaseServices(); + var handler = new PmTestHandler(); + services.AddSingleton>(handler); + + var registry = BuildRegistry(new HandlerReference + { + MessageType = typeof(PmTestMessage), + HandlerType = typeof(PmTestHandler) + }); + + mockFinder.Setup(f => f.FindDataAsync( + It.IsAny(), It.IsAny(), It.IsAny())) + .ReturnsAsync((IPersistenceData?)null); + + var provider = services.BuildServiceProvider(); + var (accessor, scopeHandle) = BuildScopeAccessor(provider); + using var _scopePm = scopeHandle; + var processor = new ProcessManagerProcessor(registry, accessor, new Lazy(() => new Mock().Object), NullLogger.Instance, DefaultBusConfig, DefaultQueueConfig, new ConsumeContextPool(), new ConsumeContextAccessor()); + + var correlationId = Guid.NewGuid(); + var msg = new PmTestMessage(correlationId) { Content = "test" }; + + var result = await processor.ProcessAsync(new byte[] { 1 }, typeof(PmTestMessage), msg, + new Dictionary(), new Envelope()); + + Assert.Equal(ProcessResult.Handled, result); + Assert.True(handler.Invoked); + mockFinder.Verify(f => f.InsertDataAsync( + It.Is(d => d.CorrelationId == correlationId), + It.IsAny()), Times.Once); + mockFinder.Verify(f => f.UpdateDataAsync( + It.IsAny>(), It.IsAny()), Times.Never); + } + + [Fact] + public async Task ProcessAsync_ExistingData_UpdatesAndReturnsHandled() + { + var (services, _, mockFinder) = CreateBaseServices(); + var handler = new PmTestHandler(); + services.AddSingleton>(handler); + + var registry = BuildRegistry(new HandlerReference + { + MessageType = typeof(PmTestMessage), + HandlerType = typeof(PmTestHandler) + }); + + var existingData = new PmTestData { CorrelationId = Guid.NewGuid(), Counter = 5 }; + var persistence = new PmTestPersistenceData { Data = existingData }; + + mockFinder.Setup(f => f.FindDataAsync( + It.IsAny(), It.IsAny(), It.IsAny())) + .ReturnsAsync(persistence); + + var provider = services.BuildServiceProvider(); + var (accessor, scopeHandle) = BuildScopeAccessor(provider); + using var _scopePm = scopeHandle; + var processor = new ProcessManagerProcessor(registry, accessor, new Lazy(() => new Mock().Object), NullLogger.Instance, DefaultBusConfig, DefaultQueueConfig, new ConsumeContextPool(), new ConsumeContextAccessor()); + + var msg = new PmTestMessage(existingData.CorrelationId) { Content = "update" }; + + var result = await processor.ProcessAsync(new byte[] { 1 }, typeof(PmTestMessage), msg, + new Dictionary(), new Envelope()); + + Assert.Equal(ProcessResult.Handled, result); + Assert.True(handler.Invoked); + Assert.Equal(6, existingData.Counter); + mockFinder.Verify(f => f.UpdateDataAsync(persistence, It.IsAny()), Times.Once); + mockFinder.Verify(f => f.InsertDataAsync(It.IsAny(), It.IsAny()), Times.Never); + } + + [Fact] + public async Task ProcessAsync_OnConcurrencyException_HandlerInvokedOnceAndExceptionPropagates() + { + // On ConcurrencyException the handler must be invoked exactly once and + // the exception must bubble up to the transport. Retrying inside the + // processor would multiply every handler side-effect (HTTP calls, + // bus.Send, logs), and retry cadence belongs to MessageRetryHandler — + // not a hardcoded in-process schedule. + var (services, _, mockFinder) = CreateBaseServices(); + var handler = new PmTestHandler(); + services.AddSingleton>(handler); + + var registry = BuildRegistry(new HandlerReference + { + MessageType = typeof(PmTestMessage), + HandlerType = typeof(PmTestHandler) + }); + + var existingData = new PmTestData { CorrelationId = Guid.NewGuid(), Counter = 5 }; + var persistence = new PmTestPersistenceData { Data = existingData }; + + mockFinder.Setup(f => f.FindDataAsync( + It.IsAny(), It.IsAny(), It.IsAny())) + .ReturnsAsync(persistence); + mockFinder.Setup(f => f.UpdateDataAsync(It.IsAny>(), It.IsAny())) + .ThrowsAsync(new ServiceConnect.Interfaces.Exceptions.ConcurrencyException("stale version")); + + var provider = services.BuildServiceProvider(); + var (accessor, scopeHandle) = BuildScopeAccessor(provider); + using var _scopePm = scopeHandle; + var processor = new ProcessManagerProcessor(registry, accessor, new Lazy(() => new Mock().Object), NullLogger.Instance, DefaultBusConfig, DefaultQueueConfig, new ConsumeContextPool(), new ConsumeContextAccessor()); + + var msg = new PmTestMessage(existingData.CorrelationId) { Content = "update" }; + + await Assert.ThrowsAsync(() => + processor.ProcessAsync(new byte[] { 1 }, typeof(PmTestMessage), msg, + new Dictionary(), new Envelope())); + + Assert.Equal(1, handler.InvokeCount); + mockFinder.Verify(f => f.UpdateDataAsync(It.IsAny>(), It.IsAny()), Times.Once); + } + + [Fact] + public async Task ProcessAsync_TwoConcurrentDispatchesSameCorrelationId_SerializeFindHandleInsertUpdate() + { + // Two messages for the same saga arriving concurrently must be serialized through + // the find→handle→persist cycle. Without per-correlation serialization both observe + // FindData==null, both run user HandleAsync (with side effects), and both call + // InsertDataAsync — the loser nacks on the unique CorrelationId index. With the + // per-correlation lock, dispatch 2 waits until dispatch 1 commits, then sees the + // just-inserted row and takes the update path. Result: exactly one Insert, exactly + // one Update, two distinct handler invocations. + var (services, _, mockFinder) = CreateBaseServices(); + var handler = new PmTestHandler(); + services.AddSingleton>(handler); + + var registry = BuildRegistry(new HandlerReference + { + MessageType = typeof(PmTestMessage), + HandlerType = typeof(PmTestHandler) + }); + + // FindData behaviour: returns null until the first InsertData has run, then returns + // the inserted row on every subsequent call. A simple flag (set by the InsertData + // mock) flips behaviour atomically — no need for SetupSequence which couples ordering. + IProcessManagerData? insertedRow = null; + mockFinder.Setup(f => f.FindDataAsync( + It.IsAny(), It.IsAny(), It.IsAny())) + .ReturnsAsync(() => insertedRow is null + ? null + : new PmTestPersistenceData { Data = (PmTestData)insertedRow }); + + // Gate the first InsertData. Dispatch 1 enters InsertData and parks; dispatch 2 + // arrives, takes the per-correlation lock wait, and is held until 1 completes. + var insertEntered = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var releaseInsert = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + mockFinder.Setup(f => f.InsertDataAsync(It.IsAny(), It.IsAny())) + .Returns(async (IProcessManagerData d, CancellationToken _) => + { + insertEntered.TrySetResult(); + await releaseInsert.Task.ConfigureAwait(false); + insertedRow = d; + }); + mockFinder.Setup(f => f.UpdateDataAsync(It.IsAny>(), It.IsAny())) + .Returns(Task.CompletedTask); + + var provider = services.BuildServiceProvider(); + var (accessor, scopeHandle) = BuildScopeAccessor(provider); + using var _scopePm = scopeHandle; + var processor = new ProcessManagerProcessor(registry, accessor, new Lazy(() => new Mock().Object), NullLogger.Instance, DefaultBusConfig, DefaultQueueConfig, new ConsumeContextPool(), new ConsumeContextAccessor()); + + var correlationId = Guid.NewGuid(); + + // Dispatch 1: enters first, parks inside InsertData. + var dispatch1 = Task.Run(() => processor.ProcessAsync( + new byte[] { 1 }, typeof(PmTestMessage), + new PmTestMessage(correlationId) { Content = "first" }, + new Dictionary(), new Envelope())); + + await insertEntered.Task.WaitAsync(TimeSpan.FromSeconds(5)); + + // Dispatch 2: starts now. The per-correlation lock blocks it until dispatch 1 + // releases. If the lock is missing (the bug), dispatch 2 also calls FindData + // (which still returns null, since insertedRow is set only after the gate is + // released) and then races into a second InsertData call. + var dispatch2 = Task.Run(() => processor.ProcessAsync( + new byte[] { 1 }, typeof(PmTestMessage), + new PmTestMessage(correlationId) { Content = "second" }, + new Dictionary(), new Envelope())); + + // Give dispatch 2 a chance to enter ProcessAsync and park on the lock. Without the + // lock it would race ahead to FindData/InsertData and the test would still pass for + // the wrong reason — so we briefly observe that it has NOT yet completed. + await Task.Delay(100); + Assert.False(dispatch2.IsCompleted, "Dispatch 2 should be blocked behind the per-correlation lock until dispatch 1 commits."); + + // Release dispatch 1. + releaseInsert.SetResult(); + + await Task.WhenAll(dispatch1, dispatch2).WaitAsync(TimeSpan.FromSeconds(5)); + + Assert.Equal(2, handler.InvokeCount); + mockFinder.Verify(f => f.InsertDataAsync(It.IsAny(), It.IsAny()), Times.Once); + mockFinder.Verify(f => f.UpdateDataAsync(It.IsAny>(), It.IsAny()), Times.Once); + } + + [Fact] + public async Task ProcessAsync_DistinctCorrelationIds_DoNotSerializeAgainstEachOther() + { + // Different correlation ids must not block each other — the per-correlation lock + // is per-id, not a single global mutex. + var (services, _, mockFinder) = CreateBaseServices(); + var handler = new PmTestHandler(); + services.AddSingleton>(handler); + + var registry = BuildRegistry(new HandlerReference + { + MessageType = typeof(PmTestMessage), + HandlerType = typeof(PmTestHandler) + }); + + mockFinder.Setup(f => f.FindDataAsync( + It.IsAny(), It.IsAny(), It.IsAny())) + .ReturnsAsync((IPersistenceData?)null); + + // Both InsertData calls park until the test releases them; with two distinct ids + // both should park simultaneously, proving they don't serialize. + var bothInserting = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var release = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + int insertingCount = 0; + mockFinder.Setup(f => f.InsertDataAsync(It.IsAny(), It.IsAny())) + .Returns(async (IProcessManagerData d, CancellationToken _) => + { + if (Interlocked.Increment(ref insertingCount) == 2) + { + bothInserting.TrySetResult(); + } + await release.Task.ConfigureAwait(false); + }); + + var provider = services.BuildServiceProvider(); + var (accessor, scopeHandle) = BuildScopeAccessor(provider); + using var _scopePm = scopeHandle; + var processor = new ProcessManagerProcessor(registry, accessor, new Lazy(() => new Mock().Object), NullLogger.Instance, DefaultBusConfig, DefaultQueueConfig, new ConsumeContextPool(), new ConsumeContextAccessor()); + + var d1 = Task.Run(() => processor.ProcessAsync(new byte[] { 1 }, typeof(PmTestMessage), + new PmTestMessage(Guid.NewGuid()), new Dictionary(), new Envelope())); + var d2 = Task.Run(() => processor.ProcessAsync(new byte[] { 1 }, typeof(PmTestMessage), + new PmTestMessage(Guid.NewGuid()), new Dictionary(), new Envelope())); + + // If the lock were global, only one would reach InsertData; bothInserting would + // never fire and the WaitAsync would time out. + await bothInserting.Task.WaitAsync(TimeSpan.FromSeconds(5)); + + release.SetResult(); + await Task.WhenAll(d1, d2).WaitAsync(TimeSpan.FromSeconds(5)); + } + + [Fact] + public async Task ProcessAsync_CancelledToken_ThrowsOce() + { + var (services, _, _) = CreateBaseServices(); + var registry = BuildRegistry(); + var provider = services.BuildServiceProvider(); + var (accessor, scopeHandle) = BuildScopeAccessor(provider); + using var _scopePm = scopeHandle; + var processor = new ProcessManagerProcessor(registry, accessor, new Lazy(() => new Mock().Object), NullLogger.Instance, DefaultBusConfig, DefaultQueueConfig, new ConsumeContextPool(), new ConsumeContextAccessor()); + + using var cts = new CancellationTokenSource(); + cts.Cancel(); + + await Assert.ThrowsAnyAsync(() => + processor.ProcessAsync(new byte[] { 1 }, typeof(PmTestMessage), new PmTestMessage(Guid.NewGuid()), + new Dictionary(), new Envelope(), cts.Token)); + } + + [Fact] + public async Task ProcessAsync_HandlerThrows_PersistsPartialStateBeforeRethrow() + { + // When the handler mutates `data` and then throws (e.g., a nested bus.Send + // failure), the mutation must persist so the redelivery path resumes from the + // mutated state rather than re-running the handler against the previously + // committed snapshot. The original exception still propagates after the + // best-effort persist. + var (services, _, mockFinder) = CreateBaseServices(); + var handler = new PmThrowingHandler(); + services.AddSingleton>(handler); + + var registry = BuildRegistry(new HandlerReference + { + MessageType = typeof(PmTestMessage), + HandlerType = typeof(PmThrowingHandler) + }); + + mockFinder.Setup(f => f.FindDataAsync( + It.IsAny(), It.IsAny(), It.IsAny())) + .ReturnsAsync((IPersistenceData?)null); + + var provider = services.BuildServiceProvider(); + var (accessor, scopeHandle) = BuildScopeAccessor(provider); + using var _scopePm = scopeHandle; + var processor = new ProcessManagerProcessor(registry, accessor, new Lazy(() => new Mock().Object), NullLogger.Instance, DefaultBusConfig, DefaultQueueConfig, new ConsumeContextPool(), new ConsumeContextAccessor()); + + var msg = new PmTestMessage(Guid.NewGuid()) { Content = "will-throw" }; + + await Assert.ThrowsAsync(() => + processor.ProcessAsync(new byte[] { 1 }, typeof(PmTestMessage), msg, + new Dictionary(), new Envelope())); + + // For a new saga (FindData==null), the partial-state persist takes the Insert + // path so the redelivery sees a row instead of starting fresh. + mockFinder.Verify(f => f.InsertDataAsync( + It.IsAny(), It.IsAny()), Times.Once); + mockFinder.Verify(f => f.UpdateDataAsync( + It.IsAny>(), It.IsAny()), Times.Never); + } + + [Fact] + public async Task ProcessAsync_HandlerThrowsButPersistAlsoFails_RethrowsOriginalHandlerException() + { + // The catch is best-effort: a persist failure in the throwing path must not mask + // the original handler exception. The persist failure is logged at Error. + var (services, _, mockFinder) = CreateBaseServices(); + var handler = new PmThrowingHandler(); + services.AddSingleton>(handler); + + var registry = BuildRegistry(new HandlerReference + { + MessageType = typeof(PmTestMessage), + HandlerType = typeof(PmThrowingHandler) + }); + + mockFinder.Setup(f => f.FindDataAsync( + It.IsAny(), It.IsAny(), It.IsAny())) + .ReturnsAsync((IPersistenceData?)null); + mockFinder.Setup(f => f.InsertDataAsync(It.IsAny(), It.IsAny())) + .ThrowsAsync(new TimeoutException("transient store failure")); + + var provider = services.BuildServiceProvider(); + var (accessor, scopeHandle) = BuildScopeAccessor(provider); + using var _scopePm = scopeHandle; + var processor = new ProcessManagerProcessor(registry, accessor, new Lazy(() => new Mock().Object), NullLogger.Instance, DefaultBusConfig, DefaultQueueConfig, new ConsumeContextPool(), new ConsumeContextAccessor()); + + var thrown = await Assert.ThrowsAsync(() => + processor.ProcessAsync(new byte[] { 1 }, typeof(PmTestMessage), + new PmTestMessage(Guid.NewGuid()) { Content = "boom" }, + new Dictionary(), new Envelope())); + + // The handler's InvalidOperationException must propagate, not the TimeoutException + // from the failed best-effort persist. + Assert.Equal("handler failure", thrown.Message); + } + + [Fact] + public async Task ProcessAsync_WhenHandlerMutatesAndThrows_PersistsMutationToInMemoryStore() + { + // Save-on-throw contract: mutations made by the handler before the throw are + // persisted (best-effort) so the redelivery path resumes from the mutated + // state. Without this, a handler that mutates `data.Counter++` then throws + // would have the mutation discarded; on redelivery the handler runs against + // the previously-committed Counter and the mutation is silently lost. + var finder = new InMemoryProcessManagerFinder(new ProcessManagerPredicateCache(), new InMemoryPersistenceState(TimeProvider.System)); + var existing = new PmMutableData { CorrelationId = Guid.NewGuid(), Counter = 5 }; + await finder.InsertDataAsync(existing, CancellationToken.None); + + var services = new ServiceCollection(); + services.AddSingleton(new Mock().Object); + services.AddSingleton(finder); + services.AddSingleton>(new PmMutatingThrowingHandler()); + + var registry = BuildRegistry(new HandlerReference + { + MessageType = typeof(PmMutableMessage), + HandlerType = typeof(PmMutatingThrowingHandler) + }); + var provider = services.BuildServiceProvider(); + var (accessor, scopeHandle) = BuildScopeAccessor(provider); + using var _scopePm = scopeHandle; + var processor = new ProcessManagerProcessor(registry, accessor, new Lazy(() => new Mock().Object), NullLogger.Instance, DefaultBusConfig, DefaultQueueConfig, new ConsumeContextPool(), new ConsumeContextAccessor()); + + await Assert.ThrowsAsync(() => + processor.ProcessAsync(new byte[] { 1 }, typeof(PmMutableMessage), new PmMutableMessage(existing.CorrelationId), + new Dictionary(), new Envelope())); + + var mapper = new TestProcessManagerPropertyMapper(); + mapper.ConfigureMapping(d => d.CorrelationId, m => m.CorrelationId); + var reloaded = await finder.FindDataAsync(mapper, new PmMutableMessage(existing.CorrelationId), CancellationToken.None); + + Assert.NotNull(reloaded); + // Handler ran Counter++ before throwing; the mutation must be visible after + // the rethrow so redelivery resumes from the mutated state. + Assert.Equal(6, reloaded!.Data.Counter); + } + + [Fact] + public async Task ProcessAsync_RunsConfigureMapperPerMessage() + { + DummyPmHandler.ResetCounter(); + + var registry = BuildRegistry(new HandlerReference + { + MessageType = typeof(DummyPmMessage), + HandlerType = typeof(DummyPmHandler) + }); + + var services = new ServiceCollection(); + services.AddSingleton(new Mock().Object); + services.AddSingleton>(new DummyPmHandler()); + var provider = services.BuildServiceProvider(); + + var (accessor, scopeHandle) = BuildScopeAccessor(provider); + using var _scopePm = scopeHandle; + var processor = new ProcessManagerProcessor( + registry, accessor, new Lazy(() => new Mock().Object), + NullLogger.Instance, DefaultBusConfig, DefaultQueueConfig, + new ConsumeContextPool(), new ConsumeContextAccessor()); + + var message = new DummyPmMessage(Guid.NewGuid()); + var headers = new Dictionary(); + var envelope = new Envelope { Headers = headers, Body = ReadOnlyMemory.Empty }; + + const int messageCount = 16; + var tasks = Enumerable.Range(0, messageCount) + .Select(_ => processor.ProcessAsync( + ReadOnlyMemory.Empty, typeof(DummyPmMessage), message, headers, envelope)) + .ToArray(); + await Task.WhenAll(tasks); + + Assert.Equal(messageCount, DummyPmHandler.ConfigureCount); + } + + [Fact] + public async Task ProcessAsync_ResolvesHandlerAndFinderFromCurrentConsumeScope_NotRoot() + { + var rootHandler = new ScopeProbePmHandler(); + var scopedHandler = new ScopeProbePmHandler(); + var rootFinder = new ScopeProbePmFinder(); + var scopedFinder = new ScopeProbePmFinder(); + + var scopedServices = new ServiceCollection(); + scopedServices.AddSingleton(scopedFinder); + scopedServices.AddSingleton>(scopedHandler); + var scopedProvider = scopedServices.BuildServiceProvider(); + + var registry = BuildRegistry(new HandlerReference + { + MessageType = typeof(ScopeProbePmMessage), + HandlerType = typeof(ScopeProbePmHandler) + }); + + var scopeAccessor = new ConsumeScopeAccessor(); + var processor = new ProcessManagerProcessor( + registry, scopeAccessor, new Lazy(() => new Mock().Object), + NullLogger.Instance, DefaultBusConfig, DefaultQueueConfig, + new ConsumeContextPool(), new ConsumeContextAccessor()); + + using (scopeAccessor.Push(scopedProvider)) + { + await processor.ProcessAsync( + ReadOnlyMemory.Empty, + typeof(ScopeProbePmMessage), + new ScopeProbePmMessage(Guid.NewGuid()), + new Dictionary(), + new Envelope { Headers = new Dictionary(), Body = ReadOnlyMemory.Empty }, + CancellationToken.None); + } + + Assert.Equal(0, rootHandler.Invocations); + Assert.Equal(1, scopedHandler.Invocations); + Assert.Equal(0, rootFinder.FindCount); + Assert.Equal(1, scopedFinder.FindCount); + } + + [Fact] + public async Task ProcessAsync_ConsecutiveMessages_ConfigureMapperRunsPerMessage() + { + // Each delivery resolves a fresh handler instance, so per-instance state inside ConfigureMapper must be re-observed. + var configureCount = 0; + var probeHandler = new ScopeProbePmHandler(() => Interlocked.Increment(ref configureCount)); + + var services = new ServiceCollection(); + services.AddSingleton(new ScopeProbePmFinder()); + services.AddSingleton>(probeHandler); + var provider = services.BuildServiceProvider(); + + var registry = BuildRegistry(new HandlerReference + { + MessageType = typeof(ScopeProbePmMessage), + HandlerType = typeof(ScopeProbePmHandler) + }); + + var scopeAccessor = new ConsumeScopeAccessor(); + var processor = new ProcessManagerProcessor( + registry, scopeAccessor, new Lazy(() => new Mock().Object), + NullLogger.Instance, DefaultBusConfig, DefaultQueueConfig, + new ConsumeContextPool(), new ConsumeContextAccessor()); + + using (scopeAccessor.Push(provider)) + { + for (var i = 0; i < 3; i++) + { + await processor.ProcessAsync( + ReadOnlyMemory.Empty, + typeof(ScopeProbePmMessage), + new ScopeProbePmMessage(Guid.NewGuid()), + new Dictionary(), + new Envelope { Headers = new Dictionary(), Body = ReadOnlyMemory.Empty }, + CancellationToken.None); + } + } + + Assert.Equal(3, configureCount); + } + + [Fact] + public async Task ProcessAsync_SetsAmbientConsumeHeadersDuringHandlerAndClearsThemAfterward() + { + var timeoutStore = new PmCapturingTimeoutStore(); + var consumeAccessor = new ConsumeContextAccessor(); + var bus = PmTestBusFactory.Create(DefaultQueueConfig, timeoutStore, consumeAccessor); + + var services = new ServiceCollection(); + var mockFinder = new Mock(); + services.AddSingleton(bus); + services.AddSingleton(mockFinder.Object); + services.AddSingleton>(new PmTimeoutRequestingHandler(bus)); + + var registry = BuildRegistry(new HandlerReference + { + MessageType = typeof(PmTestMessage), + HandlerType = typeof(PmTimeoutRequestingHandler) + }); + + mockFinder.Setup(f => f.FindDataAsync( + It.IsAny(), It.IsAny(), It.IsAny())) + .ReturnsAsync((IPersistenceData?)null); + + var provider = services.BuildServiceProvider(); + var (scopeAccessor, scopeHandle) = BuildScopeAccessor(provider); + using var _scopePm = scopeHandle; + var processor = new ProcessManagerProcessor(registry, scopeAccessor, new Lazy(() => bus), NullLogger.Instance, DefaultBusConfig, DefaultQueueConfig, new ConsumeContextPool(), consumeAccessor); + + var correlationId = Guid.NewGuid(); + var headers = new Dictionary + { + ["Custom"] = "value", + [HeaderKeys.MessageId] = "managed-message-id" + }; + + await processor.ProcessAsync(new byte[] { 1 }, typeof(PmTestMessage), new PmTestMessage(correlationId), headers, new Envelope { Headers = headers, Body = new byte[] { 1 } }); + await bus.RequestTimeoutAsync(correlationId, TimeSpan.FromMinutes(2)); + + Assert.Equal(2, timeoutStore.Inserted.Count); + Assert.Equal("value", timeoutStore.Inserted[0].Headers["Custom"]); + Assert.False(timeoutStore.Inserted[0].Headers.ContainsKey(HeaderKeys.MessageId)); + Assert.Empty(timeoutStore.Inserted[1].Headers); + } +} + +file class PmTestMessage(Guid correlationId) : Message(correlationId) +{ + public string Content { get; set; } = string.Empty; +} + +file class PmTestData : IProcessManagerData +{ + public Guid CorrelationId { get; set; } + public int Counter { get; set; } +} + +file class PmTestPersistenceData : IPersistenceData +{ + public PmTestData Data { get; set; } = new(); +} + +file class PmTestHandler : IProcessHandler +{ + public bool Invoked { get; private set; } + public int InvokeCount { get; private set; } + + public void ConfigureMapper(IProcessManagerPropertyMapper mapper) { } + + public Task HandleAsync(PmTestMessage message, PmTestData data, IConsumeContext context, CancellationToken cancellationToken = default) + { + data.Counter++; + Invoked = true; + InvokeCount++; + return Task.CompletedTask; + } +} + +file class PmThrowingHandler : IProcessHandler +{ + public void ConfigureMapper(IProcessManagerPropertyMapper mapper) { } + + public Task HandleAsync(PmTestMessage message, PmTestData data, IConsumeContext context, CancellationToken cancellationToken = default) + => throw new InvalidOperationException("handler failure"); +} + +file class PmMutableMessage(Guid correlationId) : Message(correlationId) +{ +} + +file class PmMutableData : IProcessManagerData +{ + public Guid CorrelationId { get; set; } + public int Counter { get; set; } +} + +file class PmMutatingThrowingHandler : IProcessHandler +{ + public void ConfigureMapper(IProcessManagerPropertyMapper mapper) + => mapper.ConfigureMapping(d => d.CorrelationId, m => m.CorrelationId); + + public Task HandleAsync(PmMutableMessage message, PmMutableData data, IConsumeContext context, CancellationToken cancellationToken = default) + { + data.Counter++; + throw new InvalidOperationException("handler failure"); + } +} + +file sealed class PmTimeoutRequestingHandler(IBus bus) : IProcessHandler +{ + public void ConfigureMapper(IProcessManagerPropertyMapper mapper) { } + + public Task HandleAsync(PmTestMessage message, PmTestData data, IConsumeContext context, CancellationToken cancellationToken = default) + => bus.RequestTimeoutAsync(message.CorrelationId, TimeSpan.FromMinutes(1)); +} + +file sealed class PmCapturingTimeoutStore : ITimeoutStore +{ + public List Inserted { get; } = []; + + public Task InsertTimeoutAsync(TimeoutData data, CancellationToken cancellationToken = default) + { + Inserted.Add(new TimeoutData + { + Id = data.Id, + Destination = data.Destination, + ProcessManagerId = data.ProcessManagerId, + Time = data.Time, + Headers = new Dictionary(data.Headers) + }); + return Task.CompletedTask; + } + + public Task GetTimeoutsBatchAsync(int? batchSize = null, CancellationToken cancellationToken = default) + => throw new NotSupportedException(); + + public Task RemoveDispatchedTimeoutAsync(Guid id, Guid? lockOwner = null, CancellationToken cancellationToken = default) + => throw new NotSupportedException(); + + public Task ReleaseDispatchedTimeoutAsync(Guid id, Guid? lockOwner = null, CancellationToken cancellationToken = default) + => throw new NotSupportedException(); +} + +file static class PmTestBusFactory +{ + public static Bus Create(IQueueConfiguration queueConfiguration, ITimeoutStore timeoutStore, ConsumeContextAccessor accessor) + { + var serializer = new Mock(); + serializer.SetupSerializeAny([1]); + + var filterPipeline = new Mock(); + var sendPipeline = new Mock(); + var requestReplyManager = new Mock(); + var logger = new Mock>(); + var dispatcher = new Mock(); + var pipelineConfiguration = new Mock(); + pipelineConfiguration.Setup(x => x.OutgoingFilters).Returns([]); + + var rootProvider = new ServiceCollection().BuildServiceProvider(); + return new Bus( + serializer.Object, + filterPipeline.Object, + sendPipeline.Object, + requestReplyManager.Object, + logger.Object, + queueConfiguration, + dispatcher.Object, + [], + pipelineConfiguration.Object, + rootProvider.GetRequiredService(), + new ConsumeScopeAccessor(), + timeoutStore: timeoutStore, + consumeContextAccessor: accessor); + } +} + +// Fixtures used only by ProcessAsync_RunsConfigureMapperPerMessage. +file class DummyPmMessage(Guid correlationId) : Message(correlationId) +{ +} + +file class DummyPmData : IProcessManagerData +{ + public Guid CorrelationId { get; set; } +} + +file class DummyPmHandler : IProcessHandler +{ + private static int _configureCount; + + public static int ConfigureCount => _configureCount; + + public static void ResetCounter() => Interlocked.Exchange(ref _configureCount, 0); + + public void ConfigureMapper(IProcessManagerPropertyMapper mapper) + { + Interlocked.Increment(ref _configureCount); + mapper.ConfigureMapping(d => d.CorrelationId, m => m.CorrelationId); + } + + public Task HandleAsync(DummyPmMessage message, DummyPmData data, IConsumeContext context, CancellationToken cancellationToken = default) + => Task.CompletedTask; +} + +file sealed class ScopeProbePmMessage(Guid correlationId) : Message(correlationId); + +file sealed class ScopeProbePmData : IProcessManagerData +{ + public Guid CorrelationId { get; set; } +} + +file sealed class ScopeProbePmHandler(Action? onConfigureMapper = null) + : IProcessHandler +{ + private int _invocations; + public int Invocations => Volatile.Read(ref _invocations); + + public void ConfigureMapper(IProcessManagerPropertyMapper mapper) + { + onConfigureMapper?.Invoke(); + mapper.ConfigureMapping(d => d.CorrelationId, m => m.CorrelationId); + } + + public Task HandleAsync(ScopeProbePmMessage message, ScopeProbePmData data, IConsumeContext context, CancellationToken cancellationToken = default) + { + Interlocked.Increment(ref _invocations); + return Task.CompletedTask; + } +} + +file sealed class ScopeProbePmFinder : IProcessManagerFinder +{ + private int _findCount; + public int FindCount => Volatile.Read(ref _findCount); + + public Task?> FindDataAsync( + IProcessManagerPropertyMapper mapper, Message message, CancellationToken cancellationToken = default) + where TData : class, IProcessManagerData + { + Interlocked.Increment(ref _findCount); + return Task.FromResult?>(null); + } + + public Task InsertDataAsync(IProcessManagerData data, CancellationToken cancellationToken = default) + => Task.CompletedTask; + + public Task UpdateDataAsync(IPersistenceData persistenceData, CancellationToken cancellationToken = default) + where TData : class, IProcessManagerData + => Task.CompletedTask; + + public Task DeleteDataAsync(IPersistenceData persistenceData, CancellationToken cancellationToken = default) + where TData : class, IProcessManagerData + => Task.CompletedTask; +} diff --git a/src/ServiceConnect.UnitTests/Processors/ReplyProcessorTests.cs b/src/ServiceConnect.UnitTests/Processors/ReplyProcessorTests.cs new file mode 100644 index 000000000..ce9e473f2 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Processors/ReplyProcessorTests.cs @@ -0,0 +1,106 @@ +using ServiceConnect.Interfaces; +using ServiceConnect.Services; +using ServiceConnect.Services.Processors; +using Xunit; + +namespace ServiceConnect.UnitTests.Processors; + +public class ReplyProcessorTests +{ + [Fact] + public async Task ProcessAsync_WithResponseMessageId_RoutesToReplyManager() + { + var replyManager = new TestReplyStatusRequestReplyManager(true); + + var processor = new ReplyProcessor(replyManager); + var headers = new Dictionary + { + [HeaderKeys.ResponseMessageId] = "reply-123", + [HeaderKeys.FullTypeName] = typeof(TestReplyMsg).AssemblyQualifiedName! + }; + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + var result = await processor.ProcessAsync(new byte[] { 1 }, typeof(TestReplyMsg), null, headers, envelope); + + Assert.Equal(ProcessResult.Handled, result); + Assert.Equal("reply-123", replyManager.LastMessageId); + Assert.Equal(typeof(TestReplyMsg), replyManager.LastMessageType); + } + + [Fact] + public async Task ProcessAsync_WhenReplyManagerRejectsReply_ReturnsNotHandled() + { + var replyManager = new TestReplyStatusRequestReplyManager(false); + + var processor = new ReplyProcessor(replyManager); + var headers = new Dictionary + { + [HeaderKeys.ResponseMessageId] = "reply-123", + [HeaderKeys.FullTypeName] = typeof(TestReplyMsg).AssemblyQualifiedName! + }; + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + var result = await processor.ProcessAsync(new byte[] { 1 }, typeof(TestReplyMsg), null, headers, envelope); + + Assert.Equal(ProcessResult.NotHandled, result); + } + + [Fact] + public async Task ProcessAsync_WhenReplyStatusContractIsUnavailable_ReturnsNotHandled() + { + var processor = new ReplyProcessor(null); + var headers = new Dictionary + { + [HeaderKeys.ResponseMessageId] = "reply-123", + [HeaderKeys.FullTypeName] = typeof(TestReplyMsg).AssemblyQualifiedName! + }; + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + var result = await processor.ProcessAsync(new byte[] { 1 }, typeof(TestReplyMsg), null, headers, envelope); + + Assert.Equal(ProcessResult.NotHandled, result); + } + + [Fact] + public async Task ProcessAsync_WithoutResponseMessageId_ReturnsNotHandled() + { + var processor = new ReplyProcessor(new TestReplyStatusRequestReplyManager(true)); + var headers = new Dictionary(); + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + var result = await processor.ProcessAsync(new byte[] { 1 }, typeof(TestReplyMsg), null, headers, envelope); + + Assert.Equal(ProcessResult.NotHandled, result); + } + + [Fact] + public async Task ProcessAsync_WithEmptyResponseMessageId_ReturnsNotHandled() + { + var processor = new ReplyProcessor(new TestReplyStatusRequestReplyManager(true)); + var headers = new Dictionary { [HeaderKeys.ResponseMessageId] = "" }; + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + var result = await processor.ProcessAsync(new byte[] { 1 }, typeof(TestReplyMsg), null, headers, envelope); + + Assert.Equal(ProcessResult.NotHandled, result); + } +} + +file class TestReplyMsg(Guid correlationId) : Message(correlationId) +{ +} + +file sealed class TestReplyStatusRequestReplyManager(bool shouldHandle) : IReplyStatusRequestReplyManager +{ + public string? LastMessageId { get; private set; } + public Type? LastMessageType { get; private set; } + + public bool TryProcessReply(string messageId, ReadOnlyMemory messageBytes, Type type) + { + LastMessageId = messageId; + LastMessageType = type; + return shouldHandle; + } + + public bool IsTrackedRequest(string messageId) => false; +} diff --git a/src/ServiceConnect.UnitTests/Processors/StreamHandlerRegistryTests.cs b/src/ServiceConnect.UnitTests/Processors/StreamHandlerRegistryTests.cs new file mode 100644 index 000000000..e24bb3ea3 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Processors/StreamHandlerRegistryTests.cs @@ -0,0 +1,126 @@ +using Microsoft.Extensions.Logging.Abstractions; +using ServiceConnect.Interfaces; +using ServiceConnect.Services; +using ServiceConnect.Services.Processors; +using Xunit; + +namespace ServiceConnect.UnitTests.Processors; + +public class StreamHandlerRegistryTests +{ + [Fact] + public void TryGet_ReturnsDescriptor_ForRegisteredType() + { + var refs = new List + { + new() { MessageType = typeof(ShrFoo), HandlerType = typeof(ShrFooStreamHandler) } + }; + var registry = new StreamHandlerRegistry(refs, NullLogger.Instance); + + Assert.True(registry.TryGet(typeof(ShrFoo), out var descriptor)); + Assert.Equal(typeof(ShrFoo), descriptor!.MessageType); + Assert.Equal(typeof(IStreamHandler), descriptor.HandlerInterfaceType); + } + + [Fact] + public void TryGet_ReturnsFalse_ForUnregisteredType() + { + var registry = new StreamHandlerRegistry( + [], + NullLogger.Instance); + + Assert.False(registry.TryGet(typeof(ShrFoo), out var descriptor)); + Assert.Null(descriptor); + } + + [Fact] + public void Construction_IgnoresNonStreamHandlers() + { + var refs = new List + { + new() { MessageType = typeof(ShrFoo), HandlerType = typeof(ShrFooMessageHandler) } + }; + var registry = new StreamHandlerRegistry(refs, NullLogger.Instance); + + Assert.False(registry.TryGet(typeof(ShrFoo), out _)); + } + + [Fact] + public void Construction_ThrowsOnDuplicateMessageType_WithDistinctHandlers() + { + var refs = new List + { + new() { MessageType = typeof(ShrFoo), HandlerType = typeof(ShrFooStreamHandler) }, + new() { MessageType = typeof(ShrFoo), HandlerType = typeof(ShrSecondFooStreamHandler) } + }; + + var ex = Assert.Throws(() => + new StreamHandlerRegistry(refs, NullLogger.Instance)); + + Assert.Contains(nameof(ShrFoo), ex.Message); + } + + [Fact] + public void Construction_Deduplicates_SameHandlerRegisteredTwice() + { + var refs = new List + { + new() { MessageType = typeof(ShrFoo), HandlerType = typeof(ShrFooStreamHandler) }, + new() { MessageType = typeof(ShrFoo), HandlerType = typeof(ShrFooStreamHandler) } + }; + + // Same (MessageType, HandlerType) pair twice must not throw. + var registry = new StreamHandlerRegistry(refs, NullLogger.Instance); + Assert.True(registry.TryGet(typeof(ShrFoo), out _)); + } + + [Fact] + public async Task Descriptor_InvokeExecuteAsync_PassesMessageAndStream() + { + var registry = BuildRegistry(); + Assert.True(registry.TryGet(typeof(ShrFoo), out var descriptor)); + + var handler = new ShrFooStreamHandler(); + var msg = new ShrFoo(Guid.NewGuid()); + var stream = new MessageBusReadStream("seq"); + + await descriptor!.InvokeExecuteAsync(handler, msg, stream, CancellationToken.None); + + Assert.Same(msg, handler.Executed); + Assert.Same(stream, handler.ReceivedStream); + } + + private static StreamHandlerRegistry BuildRegistry() + { + var refs = new List + { + new() { MessageType = typeof(ShrFoo), HandlerType = typeof(ShrFooStreamHandler) } + }; + return new StreamHandlerRegistry(refs, NullLogger.Instance); + } +} + +file class ShrFoo(Guid c) : Message(c) { +} + +file class ShrFooStreamHandler : IStreamHandler +{ + public ShrFoo? Executed { get; private set; } + public IMessageBusReadStream? ReceivedStream { get; private set; } + public Task ExecuteAsync(ShrFoo message, IMessageBusReadStream stream, CancellationToken cancellationToken = default) + { + Executed = message; + ReceivedStream = stream; + return Task.CompletedTask; + } +} + +file class ShrSecondFooStreamHandler : IStreamHandler +{ + public Task ExecuteAsync(ShrFoo message, IMessageBusReadStream stream, CancellationToken cancellationToken = default) => Task.CompletedTask; +} + +file class ShrFooMessageHandler : IMessageHandler +{ + public Task HandleAsync(ShrFoo message, IConsumeContext context, CancellationToken cancellationToken = default) => Task.CompletedTask; +} diff --git a/src/ServiceConnect.UnitTests/Processors/StreamProcessorAdmissionCapTests.cs b/src/ServiceConnect.UnitTests/Processors/StreamProcessorAdmissionCapTests.cs new file mode 100644 index 000000000..c6fb54671 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Processors/StreamProcessorAdmissionCapTests.cs @@ -0,0 +1,99 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging.Abstractions; +using Microsoft.Extensions.Time.Testing; +using Moq; +using ServiceConnect.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Services; +using ServiceConnect.Services.Processors; +using Xunit; + +namespace ServiceConnect.UnitTests.Processors; + +public class StreamProcessorAdmissionCapTests +{ + private static StreamProcessor BuildProcessor(TimeProvider? timeProvider = null) + { + var provider = new ServiceCollection().BuildServiceProvider(); + var accessor = new ConsumeScopeAccessor(); + accessor.Push(provider); + return new StreamProcessor( + accessor, + NullLogger.Instance, + new MessageTypeRegistry(), + new StreamHandlerRegistry([], NullLogger.Instance), + Mock.Of(), + timeProvider ?? TimeProvider.System, + new BusConfiguration()); + } + + [Fact] + public async Task ConcurrentInserts_ExceedingCap_LeaveExactlyCapEntries() + { + // Saturate the admission cap with concurrent packets for distinct sequenceIds. + // _activeStreams.Count must settle at MaxActiveStreams (1000) — no leaked rejections. + // The Interlocked counter is the admission gate; GetOrAdd is only called after a + // successful counter bump, so no rejected entry ever appears in the dictionary. + var processor = BuildProcessor(); + + const int admissions = 1500; // > MaxActiveStreams (1000) + var tasks = new List(admissions); + for (var i = 0; i < admissions; i++) + { + var seqId = Guid.NewGuid().ToString(); + var headers = new Dictionary + { + [HeaderKeys.MessageType] = HeaderKeys.ByteStream, + [HeaderKeys.SequenceId] = seqId, + [HeaderKeys.PacketNumber] = "0", + }; + var envelope = new Envelope { Headers = headers, Body = new byte[] { 0xAA } }; + tasks.Add(processor.ProcessAsync( + messageBytes: new byte[] { 0xAA }, + messageType: typeof(byte[]), + message: null, + headers: headers, + envelope: envelope, + cancellationToken: CancellationToken.None)); + } + await Task.WhenAll(tasks); + + // Each successful admission is the first packet of its stream; nothing completes, + // nothing evicts. The dictionary must contain exactly MaxActiveStreams (1000) + // entries — no rejected entries leak through. + Assert.Equal(1000, processor.ActiveStreamCount); + } + + [Fact] + public async Task ConcurrentInserts_AtCap_NeverExceedCap() + { + // Verify the cap is a hard upper bound even under heavy concurrency — the + // Interlocked gate must ensure the dictionary never exceeds MaxActiveStreams. + var processor = BuildProcessor(); + + const int admissions = 2000; // 2× MaxActiveStreams + var tasks = new List(admissions); + for (var i = 0; i < admissions; i++) + { + var seqId = Guid.NewGuid().ToString(); + var headers = new Dictionary + { + [HeaderKeys.MessageType] = HeaderKeys.ByteStream, + [HeaderKeys.SequenceId] = seqId, + [HeaderKeys.PacketNumber] = "0", + }; + var envelope = new Envelope { Headers = headers, Body = new byte[] { 0xBB } }; + tasks.Add(processor.ProcessAsync( + messageBytes: new byte[] { 0xBB }, + messageType: typeof(byte[]), + message: null, + headers: headers, + envelope: envelope, + cancellationToken: CancellationToken.None)); + } + await Task.WhenAll(tasks); + + Assert.True(processor.ActiveStreamCount <= 1000, + $"Expected at most 1000 active streams, but found {processor.ActiveStreamCount}"); + } +} diff --git a/src/ServiceConnect.UnitTests/Processors/StreamProcessorDisposeTests.cs b/src/ServiceConnect.UnitTests/Processors/StreamProcessorDisposeTests.cs new file mode 100644 index 000000000..bfad08fd0 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Processors/StreamProcessorDisposeTests.cs @@ -0,0 +1,122 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using ServiceConnect.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Services; +using ServiceConnect.Services.Processors; +using Xunit; + +namespace ServiceConnect.UnitTests.Processors; + +public class StreamProcessorDisposeTests +{ + private static StreamProcessor BuildProcessor(TimeProvider? timeProvider = null) + { + var provider = new ServiceCollection().BuildServiceProvider(); + var accessor = new ConsumeScopeAccessor(); + accessor.Push(provider); + return new StreamProcessor( + accessor, + NullLogger.Instance, + new MessageTypeRegistry(), + new StreamHandlerRegistry([], NullLogger.Instance), + Mock.Of(), + timeProvider ?? TimeProvider.System, + new BusConfiguration()); + } + + [Fact] + public async Task ProcessAsync_AfterDispose_ReturnsNotHandled() + { + var processor = BuildProcessor(); + await processor.DisposeAsync(); + + var sequenceId = Guid.NewGuid().ToString(); + var headers = new Dictionary + { + [HeaderKeys.MessageType] = HeaderKeys.ByteStream, + [HeaderKeys.SequenceId] = sequenceId, + [HeaderKeys.PacketNumber] = "0", + }; + var envelope = new Envelope { Headers = headers, Body = new byte[] { 0xAA } }; + + var result = await processor.ProcessAsync( + messageBytes: new byte[] { 0xAA }, + messageType: typeof(byte[]), + message: null, + headers: headers, + envelope: envelope, + cancellationToken: CancellationToken.None); + + Assert.Equal(ProcessResult.NotHandled, result); + } + + [Fact] + public async Task ProcessAsync_AfterDispose_DoesNotPopulateActiveStreams() + { + var processor = BuildProcessor(); + await processor.DisposeAsync(); + + var sequenceId = Guid.NewGuid().ToString(); + var headers = new Dictionary + { + [HeaderKeys.MessageType] = HeaderKeys.ByteStream, + [HeaderKeys.SequenceId] = sequenceId, + [HeaderKeys.PacketNumber] = "0", + }; + var envelope = new Envelope { Headers = headers, Body = new byte[] { 0xAA } }; + + await processor.ProcessAsync( + messageBytes: new byte[] { 0xAA }, + messageType: typeof(byte[]), + message: null, + headers: headers, + envelope: envelope, + cancellationToken: CancellationToken.None); + + // The dictionary must remain empty — once disposed, ProcessAsync must short-circuit + // before calling GetOrAdd, otherwise stream entries leak past disposal. + Assert.Equal(0, processor.ActiveStreamCount); + } + + [Fact] + public async Task DisposeAsync_DrainsPreviouslyAdmittedStreams() + { + var processor = BuildProcessor(); + + // Admit a stream before disposing. + var sequenceId = Guid.NewGuid().ToString(); + var headers = new Dictionary + { + [HeaderKeys.MessageType] = HeaderKeys.ByteStream, + [HeaderKeys.SequenceId] = sequenceId, + [HeaderKeys.PacketNumber] = "0", + }; + var envelope = new Envelope { Headers = headers, Body = new byte[] { 0x01 } }; + await processor.ProcessAsync( + messageBytes: new byte[] { 0x01 }, + messageType: typeof(byte[]), + message: null, + headers: headers, + envelope: envelope, + cancellationToken: CancellationToken.None); + + Assert.Equal(1, processor.ActiveStreamCount); + + await processor.DisposeAsync(); + + // Dispose must drain the dictionary so retained memory is released promptly. + Assert.Equal(0, processor.ActiveStreamCount); + } + + [Fact] + public async Task DisposeAsync_CalledMultipleTimes_IsIdempotent() + { + var processor = BuildProcessor(); + + // Calling DisposeAsync twice must not throw. + await processor.DisposeAsync(); + await processor.DisposeAsync(); + } +} diff --git a/src/ServiceConnect.UnitTests/Processors/StreamProcessorEvictionRaceTests.cs b/src/ServiceConnect.UnitTests/Processors/StreamProcessorEvictionRaceTests.cs new file mode 100644 index 000000000..88a4811e7 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Processors/StreamProcessorEvictionRaceTests.cs @@ -0,0 +1,128 @@ +using System.Reflection; +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging.Abstractions; +using Microsoft.Extensions.Time.Testing; +using Moq; +using ServiceConnect.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Services; +using ServiceConnect.Services.Processors; +using Xunit; + +namespace ServiceConnect.UnitTests.Processors; + +[Collection(SerialConcurrencyCollection.Name)] +public class StreamProcessorEvictionRaceTests +{ + private static StreamProcessor BuildProcessor(TimeProvider? timeProvider = null) + { + var provider = new ServiceCollection().BuildServiceProvider(); + var accessor = new ConsumeScopeAccessor(); + accessor.Push(provider); + return new StreamProcessor( + accessor, + NullLogger.Instance, + new MessageTypeRegistry(), + new StreamHandlerRegistry([], NullLogger.Instance), + Mock.Of(), + timeProvider ?? TimeProvider.System, + new BusConfiguration()); + } + + [Fact] + public async Task ProcessAsync_EntryEvictedBeforeTouch_DropsPacketWithoutWriting() + { + // Pre-fix: Stream.Write committed bytes BEFORE the touch CAS. If eviction + // raced between Write and the CAS, the CAS loop returned HandledTask but the + // bytes had already landed in the now-orphaned MessageBusReadStream. + // Post-fix: touch CAS runs first; if the entry has been evicted we return + // HandledTask BEFORE any Stream.Write committs bytes. + // + // Test strategy: prime an active stream entry via the first packet, then + // capture the inner read stream and clear _activeStreams (simulating a + // racing eviction). Send a second packet — the orphaned read stream's + // TotalBytesWritten must be unchanged from the first-packet baseline. + + var processor = BuildProcessor(); + + var sequenceId = Guid.NewGuid().ToString(); + var firstHeaders = new Dictionary + { + [HeaderKeys.MessageType] = HeaderKeys.ByteStream, + [HeaderKeys.SequenceId] = sequenceId, + [HeaderKeys.PacketNumber] = "0", + }; + var firstEnvelope = new Envelope { Headers = firstHeaders, Body = new byte[] { 0x91, 0x92, 0x93 } }; + await processor.ProcessAsync(new byte[] { 0x91, 0x92, 0x93 }, typeof(byte[]), null, firstHeaders, firstEnvelope); + + // Reach into _activeStreams via reflection to capture the read stream and + // simulate eviction by clearing the dictionary BEFORE the second packet runs. + var activeStreamsField = typeof(StreamProcessor).GetField("_activeStreams", + BindingFlags.NonPublic | BindingFlags.Instance)!; + var activeStreams = activeStreamsField.GetValue(processor)!; + + // The dictionary's value type is a private record; reflect through it to grab Stream. + var indexer = activeStreams.GetType().GetProperty("Item", [typeof(string)])!; + var entryBefore = indexer.GetValue(activeStreams, [sequenceId])!; + var streamProperty = entryBefore.GetType().GetProperty("Stream")!; + var streamBefore = (MessageBusReadStream)streamProperty.GetValue(entryBefore)!; + var bytesBefore = streamBefore.TotalBytesWritten; + var packetsBefore = streamBefore.ReceivedPacketCount; + + // Clear the dictionary — simulates the eviction sweep racing right before + // our touch on the second packet. + var clearMethod = activeStreams.GetType().GetMethod("Clear")!; + clearMethod.Invoke(activeStreams, null); + + // Send the second packet. The processor must bail at the touch CAS rather than + // writing bytes to streamBefore — that stream is no longer indexed, so any write + // would be lost or land in an evicted-but-still-reachable stream. + var secondHeaders = new Dictionary + { + [HeaderKeys.MessageType] = HeaderKeys.ByteStream, + [HeaderKeys.SequenceId] = sequenceId, + [HeaderKeys.PacketNumber] = "1", + }; + var secondEnvelope = new Envelope { Headers = secondHeaders, Body = new byte[] { 0x94, 0x95, 0x96 } }; + var result = await processor.ProcessAsync(new byte[] { 0x94, 0x95, 0x96 }, typeof(byte[]), null, secondHeaders, secondEnvelope); + + // The second packet must be acked (idempotent ack on the missing entry) and + // the orphaned stream must not have received the bytes. + Assert.Equal(ProcessResult.Handled, result); + Assert.Equal(bytesBefore, streamBefore.TotalBytesWritten); + Assert.Equal(packetsBefore, streamBefore.ReceivedPacketCount); + } + + [Fact] + public async Task ProcessAsync_TouchSucceeds_WriteCommitsBytes() + { + // Sanity check: the happy path still commits bytes when no eviction races. + var processor = BuildProcessor(); + + var sequenceId = Guid.NewGuid().ToString(); + var headers = new Dictionary + { + [HeaderKeys.MessageType] = HeaderKeys.ByteStream, + [HeaderKeys.SequenceId] = sequenceId, + [HeaderKeys.PacketNumber] = "0", + }; + var envelope = new Envelope { Headers = headers, Body = new byte[] { 0x99, 0x99, 0x99 } }; + + var result = await processor.ProcessAsync(new byte[] { 0x99, 0x99, 0x99 }, typeof(byte[]), null, headers, envelope); + Assert.Equal(ProcessResult.Handled, result); + + // Probe the dict; entry exists with one packet recorded. + var activeStreamsField = typeof(StreamProcessor).GetField("_activeStreams", + BindingFlags.NonPublic | BindingFlags.Instance)!; + var activeStreams = activeStreamsField.GetValue(processor)!; + var containsKey = activeStreams.GetType().GetMethod("ContainsKey")!; + Assert.True((bool)containsKey.Invoke(activeStreams, [sequenceId])!); + + var indexer = activeStreams.GetType().GetProperty("Item", [typeof(string)])!; + var entry = indexer.GetValue(activeStreams, [sequenceId])!; + var streamProperty = entry.GetType().GetProperty("Stream")!; + var stream = (MessageBusReadStream)streamProperty.GetValue(entry)!; + Assert.Equal(3, stream.TotalBytesWritten); + Assert.Equal(1, stream.ReceivedPacketCount); + } +} diff --git a/src/ServiceConnect.UnitTests/Processors/StreamProcessorMaxActiveStreamsConfigurableTests.cs b/src/ServiceConnect.UnitTests/Processors/StreamProcessorMaxActiveStreamsConfigurableTests.cs new file mode 100644 index 000000000..46ae8ad0f --- /dev/null +++ b/src/ServiceConnect.UnitTests/Processors/StreamProcessorMaxActiveStreamsConfigurableTests.cs @@ -0,0 +1,80 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using ServiceConnect.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Services; +using ServiceConnect.Services.Processors; +using Xunit; + +namespace ServiceConnect.UnitTests.Processors; + +/// +/// Verifies that the active-stream admission cap previously hard-coded as +/// StreamProcessor.MaxActiveStreams = 1000 is now sourced from +/// (default 1,000) and snapshotted into +/// each at construction. The admission check is +/// newCount > _maxActiveStreams, so a configured value of 2 admits +/// exactly two distinct sequence ids and rejects the third. +/// +public class StreamProcessorMaxActiveStreamsConfigurableTests +{ + [Fact] + public void BusConfiguration_MaxActiveStreams_DefaultsTo1000() + { + var config = new BusConfiguration(); + + Assert.Equal(1000, config.MaxActiveStreams); + } + + [Fact] + public async Task StreamProcessor_HonoursConfiguredCap() + { + // Configured cap of 2: the first two distinct sequence ids must be admitted, + // the third must be rejected at the admission gate. Each admission is the first + // packet of its stream; nothing completes, nothing evicts, so ActiveStreamCount + // settles at exactly the configured cap. + var config = new BusConfiguration { MaxActiveStreams = 2 }; + var processor = BuildProcessor(config); + + await SendFirstPacketAsync(processor, Guid.NewGuid().ToString()); + await SendFirstPacketAsync(processor, Guid.NewGuid().ToString()); + await SendFirstPacketAsync(processor, Guid.NewGuid().ToString()); + + Assert.Equal(2, processor.ActiveStreamCount); + } + + private static StreamProcessor BuildProcessor(IBusConfiguration busConfig) + { + var provider = new ServiceCollection().BuildServiceProvider(); + var accessor = new ConsumeScopeAccessor(); + accessor.Push(provider); + return new StreamProcessor( + accessor, + NullLogger.Instance, + new MessageTypeRegistry(), + new StreamHandlerRegistry([], NullLogger.Instance), + Mock.Of(), + TimeProvider.System, + busConfig); + } + + private static Task SendFirstPacketAsync(StreamProcessor processor, string sequenceId) + { + var headers = new Dictionary + { + [HeaderKeys.MessageType] = HeaderKeys.ByteStream, + [HeaderKeys.SequenceId] = sequenceId, + [HeaderKeys.PacketNumber] = "0", + }; + var envelope = new Envelope { Headers = headers, Body = new byte[] { 0xCC } }; + return processor.ProcessAsync( + messageBytes: new byte[] { 0xCC }, + messageType: typeof(byte[]), + message: null, + headers: headers, + envelope: envelope, + cancellationToken: CancellationToken.None); + } +} diff --git a/src/ServiceConnect.UnitTests/Processors/StreamProcessorTests.cs b/src/ServiceConnect.UnitTests/Processors/StreamProcessorTests.cs new file mode 100644 index 000000000..5b451c019 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Processors/StreamProcessorTests.cs @@ -0,0 +1,871 @@ +using System.Reflection; +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using ServiceConnect.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Services; +using ServiceConnect.Services.Processors; +using ServiceConnect.UnitTests; +using Xunit; + +namespace ServiceConnect.UnitTests.Processors; + +[Collection(SerialConcurrencyCollection.Name)] +public class StreamProcessorTests +{ + private static (ConsumeScopeAccessor accessor, IDisposable scope, IServiceScopeFactory factory) BuildScopeContext(IServiceProvider provider) + { + var accessor = new ConsumeScopeAccessor(); + var scope = accessor.Push(provider); + var factory = provider.GetRequiredService(); + return (accessor, scope, factory); + } + + private static StreamProcessor BuildProcessor() + { + var provider = new ServiceCollection().BuildServiceProvider(); + var accessor = new ConsumeScopeAccessor(); + // Push a never-popped scope: BuildProcessor is called from sync test bodies + // that don't await across the call, so the AsyncLocal value stays in scope + // for any subsequent ProcessAsync invocations on the returned processor. + accessor.Push(provider); + return new StreamProcessor( + accessor, + NullLogger.Instance, + new MessageTypeRegistry(), + new StreamHandlerRegistry([], NullLogger.Instance), + Mock.Of(), + TimeProvider.System, + new BusConfiguration()); + } + + [Fact] + public void Constructor_UsesSingleStateDictionaryAndInjectedSerializer() + { + Assert.NotNull(typeof(StreamProcessor).GetField("_serializer", BindingFlags.Instance | BindingFlags.NonPublic)); + Assert.Null(typeof(StreamProcessor).GetField("_streamTimestamps", BindingFlags.Instance | BindingFlags.NonPublic)); + } + + [Fact] + public async Task ProcessAsync_NonByteStream_ReturnsNotHandled() + { + var processor = BuildProcessor(); + var headers = new Dictionary { [HeaderKeys.MessageType] = "Send" }; + var envelope = new Envelope { Headers = headers, Body = Array.Empty() }; + + var result = await processor.ProcessAsync(Array.Empty(), typeof(object), null, headers, envelope); + + Assert.Equal(ProcessResult.NotHandled, result); + } + + [Fact] + public async Task ProcessAsync_NoMessageTypeHeader_ReturnsNotHandled() + { + var processor = BuildProcessor(); + var headers = new Dictionary(); + var envelope = new Envelope { Headers = headers, Body = Array.Empty() }; + + var result = await processor.ProcessAsync(Array.Empty(), typeof(object), null, headers, envelope); + + Assert.Equal(ProcessResult.NotHandled, result); + } + + [Fact] + public async Task ProcessAsync_ByteStreamPacket_WithValidGuidSequenceId_ReturnsHandled() + { + var processor = BuildProcessor(); + var sequenceId = Guid.NewGuid().ToString(); + var headers = new Dictionary + { + [HeaderKeys.MessageType] = HeaderKeys.ByteStream, + [HeaderKeys.SequenceId] = sequenceId, + [HeaderKeys.PacketNumber] = "0" + }; + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + var result = await processor.ProcessAsync(new byte[] { 1 }, typeof(object), null, headers, envelope); + + Assert.Equal(ProcessResult.Handled, result); + } + + // Non-GUID SequenceId must be rejected. + [Fact] + public async Task ProcessAsync_NonGuidSequenceId_ReturnsNotHandled() + { + var processor = BuildProcessor(); + var headers = new Dictionary + { + [HeaderKeys.MessageType] = HeaderKeys.ByteStream, + [HeaderKeys.SequenceId] = "not-a-guid", + [HeaderKeys.PacketNumber] = "0" + }; + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + var result = await processor.ProcessAsync(new byte[] { 1 }, typeof(object), null, headers, envelope); + + Assert.Equal(ProcessResult.NotHandled, result); + } + + // Valid GUID SequenceId is accepted. + [Fact] + public async Task ProcessAsync_ValidGuidSequenceId_ReturnsHandled() + { + var processor = BuildProcessor(); + var headers = new Dictionary + { + [HeaderKeys.MessageType] = HeaderKeys.ByteStream, + [HeaderKeys.SequenceId] = "3f2504e0-4f89-11d3-9a0c-0305e82c3301", + [HeaderKeys.PacketNumber] = "0" + }; + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + var result = await processor.ProcessAsync(new byte[] { 1 }, typeof(object), null, headers, envelope); + + Assert.Equal(ProcessResult.Handled, result); + } + + // Stream creation is rejected when MaxActiveStreams limit is reached. + [Fact] + public async Task ProcessAsync_WhenMaxActiveStreamsReached_RejectsNewStream() + { + var processor = BuildProcessor(); + + // Fill up to MaxActiveStreams (1000) by sending packet 0 to each distinct stream. + // We only need to exceed the limit, so we drive it to 1000 streams first. + for (int i = 0; i < 1000; i++) + { + var fillHeaders = new Dictionary + { + [HeaderKeys.MessageType] = HeaderKeys.ByteStream, + [HeaderKeys.SequenceId] = Guid.NewGuid().ToString(), + [HeaderKeys.PacketNumber] = "0" + }; + var fillEnvelope = new Envelope { Headers = fillHeaders, Body = new byte[] { 1 } }; + await processor.ProcessAsync(new byte[] { 1 }, typeof(object), null, fillHeaders, fillEnvelope); + } + + // Now a brand-new stream should be rejected. + var newId = Guid.NewGuid().ToString(); + var headers = new Dictionary + { + [HeaderKeys.MessageType] = HeaderKeys.ByteStream, + [HeaderKeys.SequenceId] = newId, + [HeaderKeys.PacketNumber] = "0" + }; + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + var result = await processor.ProcessAsync(new byte[] { 1 }, typeof(object), null, headers, envelope); + + Assert.Equal(ProcessResult.NotHandled, result); + } + + // LastPacketNumber exceeding the limit is rejected. + [Fact] + public async Task ProcessAsync_LastPacketNumberExceedsMax_ReturnsHandled_AndDiscards() + { + var processor = BuildProcessor(); + var sequenceId = Guid.NewGuid().ToString(); + // Send a final packet that claims LastPacketNumber = 100001 (above the 100_000 cap). + var headers = new Dictionary + { + [HeaderKeys.MessageType] = HeaderKeys.ByteStream, + [HeaderKeys.SequenceId] = sequenceId, + [HeaderKeys.PacketNumber] = "0", + [HeaderKeys.LastPacketNumber] = "100001" + }; + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + // Returns Handled (to prevent requeue) but the stream is silently discarded. + var result = await processor.ProcessAsync(new byte[] { 1 }, typeof(object), null, headers, envelope); + + Assert.Equal(ProcessResult.Handled, result); + } + + // Repeated cap-violating packets must not accumulate state. Validation runs before + // Stream.Write commits bytes, and rejection actively removes the entry plus decrements + // the count so the slot reclaims immediately rather than waiting on the eviction sweep. + [Fact] + public async Task ProcessAsync_RepeatedLastPacketNumberCapViolations_DoNotLeakActiveStreams() + { + var processor = BuildProcessor(); + + for (int i = 0; i < 50; i++) + { + var sequenceId = Guid.NewGuid().ToString(); + var headers = new Dictionary + { + [HeaderKeys.MessageType] = HeaderKeys.ByteStream, + [HeaderKeys.SequenceId] = sequenceId, + [HeaderKeys.PacketNumber] = "0", + [HeaderKeys.LastPacketNumber] = "100001", + }; + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + var result = await processor.ProcessAsync(new byte[] { 1 }, typeof(object), null, headers, envelope); + Assert.Equal(ProcessResult.Handled, result); + } + + // Each rejected packet's stream slot must reclaim immediately. A leak would leave + // 50 entries resident, each holding up to 100 MB of writeable state until the + // 5-minute eviction sweep — the DoS vector this fix closes. + Assert.Equal(0, processor.ActiveStreamCount); + } + + // Garbage in the LastPacketNumber header must not commit bytes either. + [Fact] + public async Task ProcessAsync_UnparseableLastPacketNumber_DiscardsAndReclaimsSlot() + { + var processor = BuildProcessor(); + var sequenceId = Guid.NewGuid().ToString(); + var headers = new Dictionary + { + [HeaderKeys.MessageType] = HeaderKeys.ByteStream, + [HeaderKeys.SequenceId] = sequenceId, + [HeaderKeys.PacketNumber] = "0", + [HeaderKeys.LastPacketNumber] = "not-a-number", + }; + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + var result = await processor.ProcessAsync(new byte[] { 1 }, typeof(object), null, headers, envelope); + + Assert.Equal(ProcessResult.Handled, result); + Assert.Equal(0, processor.ActiveStreamCount); + } + + // LastPacketNumber at exactly the limit (100_000) is accepted. + [Fact] + public async Task ProcessAsync_LastPacketNumberAtMax_IsAccepted() + { + var processor = BuildProcessor(); + var sequenceId = Guid.NewGuid().ToString(); + var headers = new Dictionary + { + [HeaderKeys.MessageType] = HeaderKeys.ByteStream, + [HeaderKeys.SequenceId] = sequenceId, + [HeaderKeys.PacketNumber] = "0", + [HeaderKeys.LastPacketNumber] = "100000" + }; + var envelope = new Envelope { Headers = headers, Body = new byte[] { 1 } }; + + var result = await processor.ProcessAsync(new byte[] { 1 }, typeof(object), null, headers, envelope); + + // Packet received but stream not yet complete (we only sent packet 0 of 100001 total). + Assert.Equal(ProcessResult.Handled, result); + } + + [Fact] + public void StreamProcessor_Implements_IAsyncDisposable() + { + // Disposal must wait for in-flight EvictStaleStreams callbacks. + // ITimer.DisposeAsync awaits the callback; ITimer.Dispose does not. + Assert.True(typeof(IAsyncDisposable).IsAssignableFrom(typeof(StreamProcessor)), + "StreamProcessor must implement IAsyncDisposable so disposal waits for the cleanup-timer callback."); + } + + [Fact] + public async Task DisposeAsync_CompletesWithoutThrowing() + { + var processor = BuildProcessor(); + var ex = await Record.ExceptionAsync(async () => + { + await ((IAsyncDisposable)processor).DisposeAsync(); + }); + Assert.Null(ex); + } + + // A handler that throws must propagate the exception out of InvokeHandlerAsync + // and the error must be logged at Error level including handler type and sequence id. + [Fact] + public async Task InvokeHandlerAsync_ThrowingHandler_LogsErrorAndRethrows() + { + var capturingLogger = new SptCapturingLogger(); + + var sequenceId = Guid.NewGuid().ToString(); + var msgType = typeof(SptMsg); + + var typeRegistry = new MessageTypeRegistry(); + typeRegistry.Register(msgType); + + var handlerRefs = new List + { + new() { MessageType = msgType, HandlerType = typeof(SptThrowingHandler) } + }; + var streamHandlerRegistry = new StreamHandlerRegistry(handlerRefs, NullLogger.Instance); + + var services = new ServiceCollection(); + services.AddSingleton>(new SptThrowingHandler()); + var provider = services.BuildServiceProvider(); + + // The serializer just needs to return a valid SptMsg. + var msg = new SptMsg(Guid.NewGuid()); + var serializerMock = new Mock(); + serializerMock + .Setup(s => s.Deserialize(It.IsAny>(), msgType)) + .Returns(msg); + + var (accessor, scopeStream1, _) = BuildScopeContext(provider); + using var _scopeStream1 = scopeStream1; + var processor = new StreamProcessor( + accessor, + capturingLogger, + typeRegistry, + streamHandlerRegistry, + serializerMock.Object, + TimeProvider.System, + new BusConfiguration()); + + // Build a single-packet complete stream. + var payload = new byte[] { 0x01 }; + var headers = new Dictionary + { + [HeaderKeys.MessageType] = HeaderKeys.ByteStream, + [HeaderKeys.SequenceId] = sequenceId, + [HeaderKeys.PacketNumber] = "0", + [HeaderKeys.LastPacketNumber] = "0", + [HeaderKeys.FullTypeName] = msgType.FullName! + }; + var envelope = new Envelope { Headers = headers, Body = payload }; + + // The exception from the handler must propagate out. + var thrownEx = await Assert.ThrowsAsync( + () => processor.ProcessAsync(payload, msgType, null, headers, envelope)); + + Assert.Equal(SptThrowingHandler.ErrorMessage, thrownEx.Message); + + // The error must have been logged at Error level containing the sequenceId. + Assert.Contains(capturingLogger.Entries, e => + e.Level == LogLevel.Error && e.Message.Contains(sequenceId)); + } + + // An OCE thrown by the handler with an unrelated CT (e.g. the handler timed out + // an internal HTTP call via its own CancellationTokenSource) must NOT escape with + // that unrelated token attached. The downstream metrics pipeline gates + // error.type=cancelled on cancellationToken.IsCancellationRequested; an unrelated + // OCE carrying a handler-owned token would produce a false graceful-shutdown signal. + [Fact] + public async Task InvokeHandlerAsync_HandlerThrowsUnrelatedOce_DoesNotPretendCallerCancelled() + { + using var unrelatedCts = new CancellationTokenSource(); + unrelatedCts.Cancel(); + + var sequenceId = Guid.NewGuid().ToString(); + var msgType = typeof(SptMsg); + + var typeRegistry = new MessageTypeRegistry(); + typeRegistry.Register(msgType); + + var handlerRefs = new List + { + new() { MessageType = msgType, HandlerType = typeof(SptUnrelatedOceHandler) } + }; + var streamHandlerRegistry = new StreamHandlerRegistry(handlerRefs, NullLogger.Instance); + + var services = new ServiceCollection(); + services.AddSingleton>(new SptUnrelatedOceHandler(unrelatedCts.Token)); + var provider = services.BuildServiceProvider(); + + var msg = new SptMsg(Guid.NewGuid()); + var serializerMock = new Mock(); + serializerMock + .Setup(s => s.Deserialize(It.IsAny>(), msgType)) + .Returns(msg); + + var (accessor, scopeOce, _) = BuildScopeContext(provider); + using var _scopeOce = scopeOce; + var processor = new StreamProcessor( + accessor, + NullLogger.Instance, + typeRegistry, + streamHandlerRegistry, + serializerMock.Object, + TimeProvider.System, + new BusConfiguration()); + + var payload = new byte[] { 0x01 }; + var headers = new Dictionary + { + [HeaderKeys.MessageType] = HeaderKeys.ByteStream, + [HeaderKeys.SequenceId] = sequenceId, + [HeaderKeys.PacketNumber] = "0", + [HeaderKeys.LastPacketNumber] = "0", + [HeaderKeys.FullTypeName] = msgType.FullName! + }; + var envelope = new Envelope { Headers = headers, Body = payload }; + + using var callerCts = new CancellationTokenSource(); + // Caller CT is NOT cancelled. + + var ex = await Assert.ThrowsAsync( + () => processor.ProcessAsync(payload, msgType, null, headers, envelope, callerCts.Token)); + + // The escaping OCE must carry the caller's token (not the handler-owned one). + // The inner exception preserves the original handler-thrown OCE with the unrelated token. + Assert.Equal(callerCts.Token, ex.CancellationToken); + Assert.False(ex.CancellationToken.IsCancellationRequested); + Assert.NotNull(ex.InnerException); + Assert.IsType(ex.InnerException); + Assert.Equal(unrelatedCts.Token, ((OperationCanceledException)ex.InnerException).CancellationToken); + } + + // When the CALLER cancels and the handler also throws OCE with an unrelated token, the + // first catch branch takes priority: the escaping OCE must carry the caller's token, + // confirming the cancellation was a genuine caller-initiated shutdown. + [Fact] + public async Task InvokeHandlerAsync_CallerCancels_OceCarriesCallerToken() + { + using var unrelatedCts = new CancellationTokenSource(); + unrelatedCts.Cancel(); + + using var callerCts = new CancellationTokenSource(); + callerCts.Cancel(); // caller IS cancelled this time + + var sequenceId = Guid.NewGuid().ToString(); + var msgType = typeof(SptMsg); + + var typeRegistry = new MessageTypeRegistry(); + typeRegistry.Register(msgType); + + var handlerRefs = new List + { + new() { MessageType = msgType, HandlerType = typeof(SptUnrelatedOceHandler) } + }; + var streamHandlerRegistry = new StreamHandlerRegistry(handlerRefs, NullLogger.Instance); + + var services = new ServiceCollection(); + services.AddSingleton>(new SptUnrelatedOceHandler(unrelatedCts.Token)); + var provider = services.BuildServiceProvider(); + + var msg = new SptMsg(Guid.NewGuid()); + var serializerMock = new Mock(); + serializerMock + .Setup(s => s.Deserialize(It.IsAny>(), msgType)) + .Returns(msg); + + var (accessor, scopeCallerCancels, _) = BuildScopeContext(provider); + using var _scopeCallerCancels = scopeCallerCancels; + var processor = new StreamProcessor( + accessor, + NullLogger.Instance, + typeRegistry, + streamHandlerRegistry, + serializerMock.Object, + TimeProvider.System, + new BusConfiguration()); + + var payload = new byte[] { 0x01 }; + var headers = new Dictionary + { + [HeaderKeys.MessageType] = HeaderKeys.ByteStream, + [HeaderKeys.SequenceId] = sequenceId, + [HeaderKeys.PacketNumber] = "0", + [HeaderKeys.LastPacketNumber] = "0", + [HeaderKeys.FullTypeName] = msgType.FullName! + }; + var envelope = new Envelope { Headers = headers, Body = payload }; + + var ex = await Assert.ThrowsAsync( + () => processor.ProcessAsync(payload, msgType, null, headers, envelope, callerCts.Token)); + + // Caller-cancelled path: OCE must carry the caller's token, which IS cancelled. + Assert.Equal(callerCts.Token, ex.CancellationToken); + Assert.True(ex.CancellationToken.IsCancellationRequested); + } + + // When MessageBusReadStream.Write throws (e.g. packet number exceeds the + // already-set LastPacketNumber), the StreamProcessor must evict the entry + // from _activeStreams so the sequence is not wedged until the 5-minute sweep. + [Fact] + public async Task ProcessAsync_WhenWriteThrowsForPoisonPacket_EvictsActiveStreamEntry() + { + var processor = BuildProcessor(); + var sequenceId = Guid.NewGuid().ToString(); + + // Packet 0 of a 3-packet stream — establishes LastPacketNumber=2 without + // completing the sequence (packets 1 and 2 are still outstanding). + var setupHeaders = new Dictionary + { + [HeaderKeys.MessageType] = HeaderKeys.ByteStream, + [HeaderKeys.SequenceId] = sequenceId, + [HeaderKeys.PacketNumber] = "0", + [HeaderKeys.LastPacketNumber] = "2" + }; + var setupEnv = new Envelope { Headers = setupHeaders, Body = new byte[] { 1 } }; + await processor.ProcessAsync(new byte[] { 1 }, typeof(object), null, setupHeaders, setupEnv); + + // Now send packet 99 — exceeds LastPacketNumber=2 → underlying Write throws. + var poisonHeaders = new Dictionary + { + [HeaderKeys.MessageType] = HeaderKeys.ByteStream, + [HeaderKeys.SequenceId] = sequenceId, + [HeaderKeys.PacketNumber] = "99" + }; + var poisonEnv = new Envelope { Headers = poisonHeaders, Body = "\t"u8.ToArray() }; + + var result = await processor.ProcessAsync("\t"u8.ToArray(), typeof(object), null, poisonHeaders, poisonEnv); + + // Handled to drop the poison packet without requeue. + Assert.Equal(ProcessResult.Handled, result); + + // The sequence must no longer occupy a slot in _activeStreams. + var dictField = typeof(StreamProcessor) + .GetField("_activeStreams", BindingFlags.Instance | BindingFlags.NonPublic); + Assert.NotNull(dictField); + // The dictionary's value type (ActiveStreamState) is a private nested type in + // StreamProcessor, so the test inspects it via the non-generic IDictionary surface. + var dict = (System.Collections.IDictionary)dictField!.GetValue(processor)!; + Assert.False(dict.Contains(sequenceId), "Active-stream entry must be evicted after a poison-packet exception."); + } + + // ActiveStreamState must be a record (or readonly struct) so that updating + // LastSeenUtc requires a new instance and the eviction sweep's KVP-based TryRemove + // can detect concurrent touches via reference inequality. + [Fact] + public void ActiveStreamState_IsImmutable_LastSeenUtcHasNoPublicSetter() + { + var stateType = typeof(StreamProcessor) + .GetNestedType("ActiveStreamState", BindingFlags.NonPublic); + Assert.NotNull(stateType); + + var lastSeen = stateType!.GetProperty("LastSeenUtc"); + Assert.NotNull(lastSeen); + // A positional record property has an init-only setter — its SetMethod carries the + // IsExternalInit modifier. A mutable `set` carries no such modifier. Asserting the + // setter exists AND is init-only avoids a vacuous pass if the property were ever + // refactored to get-only. + var setter = lastSeen!.SetMethod; + Assert.NotNull(setter); + var modifiers = setter!.ReturnParameter.GetRequiredCustomModifiers(); + Assert.Contains(modifiers, + m => m.FullName == "System.Runtime.CompilerServices.IsExternalInit"); + } + + // The dispatch path is idempotent-ack: multiple concurrent deliveries of the same final + // packet all observe IsComplete() == true, but only the thread whose TryRemove returns + // true is allowed to invoke the handler. Use a Barrier to converge N threads at the + // dispatch boundary so the race is forced rather than rare. + [Fact] + public async Task ProcessAsync_ConcurrentFinalPacketDeliveries_DispatchesHandlerOnce() + { + var sequenceId = Guid.NewGuid().ToString(); + var msgType = typeof(SptMsg); + + var typeRegistry = new MessageTypeRegistry(); + typeRegistry.Register(msgType); + + var handlerRefs = new List + { + new() { MessageType = msgType, HandlerType = typeof(SptCountingHandler) } + }; + var streamHandlerRegistry = new StreamHandlerRegistry(handlerRefs, NullLogger.Instance); + + var counter = new SptCounter(); + var services = new ServiceCollection(); + services.AddSingleton>(_ => new SptCountingHandler(counter)); + var provider = services.BuildServiceProvider(); + + var msg = new SptMsg(Guid.NewGuid()); + var serializerMock = new Mock(); + serializerMock + .Setup(s => s.Deserialize(It.IsAny>(), msgType)) + .Returns(msg); + + var (accessor, scopeStream2, _) = BuildScopeContext(provider); + using var _scopeStream2 = scopeStream2; + // FakeTimeProvider with AutoAdvanceAmount = 1 tick ensures every GetUtcNow() + // call returns a strictly increasing value. Under TimeProvider.System the high + // concurrency made multiple ActiveStreamState records structurally equal (identical + // LastSeenUtc ticks), allowing more than one TryRemove(KVP) to succeed in the + // completion-dispatch path and causing the handler to fire more than once. + var clock = new Microsoft.Extensions.Time.Testing.FakeTimeProvider( + new DateTimeOffset(2026, 1, 1, 0, 0, 0, TimeSpan.Zero)) + { + AutoAdvanceAmount = TimeSpan.FromTicks(1), + }; + var processor = new StreamProcessor( + accessor, + NullLogger.Instance, + typeRegistry, + streamHandlerRegistry, + serializerMock.Object, + clock, + new BusConfiguration()); + + var payload = new byte[] { 0x01 }; + + // Pre-prime the stream so all concurrent tasks find it in the dictionary via + // the existing-stream path (TryGetValue → hit). Without pre-priming, a thread + // delayed by the scheduler can arrive at the admission block after TryRemove + // has already evicted the completed entry, causing re-admission of the same + // sequenceId as a brand-new stream and a second handler dispatch. + // Send packet 0 WITHOUT LastPacketNumber so the stream is admitted but stays open. + var primeHeaders = new Dictionary + { + [HeaderKeys.MessageType] = HeaderKeys.ByteStream, + [HeaderKeys.SequenceId] = sequenceId, + [HeaderKeys.PacketNumber] = "0", + }; + await processor.ProcessAsync(payload, msgType, null, primeHeaders, new Envelope { Headers = primeHeaders, Body = payload }); + + const int concurrent = 8; + using var barrier = new System.Threading.Barrier(concurrent); + var tasks = Enumerable.Range(0, concurrent).Select(_ => Task.Run(async () => + { + // Each task gets its own headers dict so the dispatch path doesn't race on + // a shared dictionary; values are identical. Packet 0 is already in the + // stream (from pre-prime); Write silently no-ops on duplicate packet numbers, + // SetLastPacketNumber(0) completes the stream, and all 8 tasks race TryRemove. + var headers = new Dictionary + { + [HeaderKeys.MessageType] = HeaderKeys.ByteStream, + [HeaderKeys.SequenceId] = sequenceId, + [HeaderKeys.PacketNumber] = "0", + [HeaderKeys.LastPacketNumber] = "0", + [HeaderKeys.FullTypeName] = msgType.FullName! + }; + var envelope = new Envelope { Headers = headers, Body = payload }; + + barrier.SignalAndWait(); + await processor.ProcessAsync(payload, msgType, null, headers, envelope); + })).ToList(); + + await Task.WhenAll(tasks); + + Assert.Equal(1, counter.Count); + } + + // The touch path must REPLACE the active-stream entry with a new instance carrying + // the updated LastSeenUtc. If the field is mutated in place, the eviction sweep's + // TOCTOU race is unavoidable. + [Fact] + public async Task ProcessAsync_TouchPath_ReplacesActiveStreamStateInstance() + { + var fakeTime = new Microsoft.Extensions.Time.Testing.FakeTimeProvider( + DateTimeOffset.UtcNow); + + var (accessor, scopeStream3, _) = BuildScopeContext(new ServiceCollection().BuildServiceProvider()); + using var _scopeStream3 = scopeStream3; + var processor = new StreamProcessor( + accessor, + NullLogger.Instance, + new MessageTypeRegistry(), + new StreamHandlerRegistry([], NullLogger.Instance), + Mock.Of(), + fakeTime, + new BusConfiguration()); + + var sequenceId = Guid.NewGuid().ToString(); + var headers0 = new Dictionary + { + [HeaderKeys.MessageType] = HeaderKeys.ByteStream, + [HeaderKeys.SequenceId] = sequenceId, + [HeaderKeys.PacketNumber] = "0" + }; + await processor.ProcessAsync(new byte[] { 1 }, typeof(object), null, headers0, new Envelope { Headers = headers0, Body = new byte[] { 1 } }); + + var dictField = typeof(StreamProcessor) + .GetField("_activeStreams", BindingFlags.Instance | BindingFlags.NonPublic); + var dict = (System.Collections.IDictionary)dictField!.GetValue(processor)!; + var firstState = dict[sequenceId]; + Assert.NotNull(firstState); + + // Advance time and send the next packet — touch path must produce a new state instance. + fakeTime.Advance(TimeSpan.FromSeconds(30)); + var headers1 = new Dictionary + { + [HeaderKeys.MessageType] = HeaderKeys.ByteStream, + [HeaderKeys.SequenceId] = sequenceId, + [HeaderKeys.PacketNumber] = "1" + }; + await processor.ProcessAsync(new byte[] { 2 }, typeof(object), null, headers1, new Envelope { Headers = headers1, Body = new byte[] { 2 } }); + + var secondState = dict[sequenceId]; + Assert.NotNull(secondState); + Assert.NotSame(firstState, secondState); + + var lastSeenProp = secondState!.GetType().GetProperty("LastSeenUtc")!; + var lastSeen = (DateTimeOffset)lastSeenProp.GetValue(secondState)!; + Assert.Equal(fakeTime.GetUtcNow(), lastSeen); + } + + // Concurrent opens that race across the admission threshold must not push + // _activeStreams past MaxActiveStreams. Each opener uses a fresh SequenceId so none + // of the GetOrAdd calls collide on an existing key; the race is purely on the count check. + [Fact] + public async Task ProcessAsync_ConcurrentExclusiveOpensAtCap_DoNotExceedCap() + { + const int cap = 1000; + const int parallelism = 64; + const int extra = 32; + + var processor = BuildProcessor(); + + // Warm to cap-1 sequentially so the race fires right at the boundary. + for (int i = 0; i < cap - 1; i++) + { + var warmHeaders = new Dictionary + { + [HeaderKeys.MessageType] = HeaderKeys.ByteStream, + [HeaderKeys.SequenceId] = Guid.NewGuid().ToString(), + [HeaderKeys.PacketNumber] = "0" + }; + await processor.ProcessAsync(new byte[] { 1 }, typeof(object), null, warmHeaders, + new Envelope { Headers = warmHeaders, Body = new byte[] { 1 } }); + } + + using var gate = new ManualResetEventSlim(false); + var tasks = Enumerable.Range(0, parallelism + extra).Select(_ => Task.Run(async () => + { + var seqId = Guid.NewGuid().ToString(); + var headers = new Dictionary + { + [HeaderKeys.MessageType] = HeaderKeys.ByteStream, + [HeaderKeys.SequenceId] = seqId, + [HeaderKeys.PacketNumber] = "0" + }; + gate.Wait(); + await processor.ProcessAsync(new byte[] { 1 }, typeof(object), null, headers, + new Envelope { Headers = headers, Body = new byte[] { 1 } }); + })).ToList(); + + gate.Set(); + await Task.WhenAll(tasks); + + Assert.True(processor.ActiveStreamCount <= cap, + $"Expected ActiveStreamCount <= {cap} but was {processor.ActiveStreamCount}"); + } + + // The processor must resolve the IStreamHandler from the consume scope that is currently + // active when ProcessAsync runs. The dispatcher pushes a per-message scope; without + // scope-aware resolution, scoped handler dependencies (DbContext, unit-of-work, tenant + // context) leak across messages. To verify the lookup honours Current (not anything + // captured at ctor time), this test sets up two providers each carrying a different + // IStreamHandler instance and pushes the "scoped" one before invoking ProcessAsync. + [Fact] + public async Task ProcessAsync_ResolvesHandlerFromCurrentConsumeScope_NotRoot() + { + var rootHandlerProbe = new ScopeProbeStreamHandler("root"); + var scopedHandlerProbe = new ScopeProbeStreamHandler("scoped"); + + var rootServices = new ServiceCollection(); + rootServices.AddSingleton>(rootHandlerProbe); + var rootProvider = rootServices.BuildServiceProvider(); + + var scopedServices = new ServiceCollection(); + scopedServices.AddSingleton>(scopedHandlerProbe); + var scopedProvider = scopedServices.BuildServiceProvider(); + + var typeRegistry = new MessageTypeRegistry(); + typeRegistry.Register(typeof(ScopeProbeMessage)); + + var handlerRefs = new List + { + new() { MessageType = typeof(ScopeProbeMessage), HandlerType = typeof(ScopeProbeStreamHandler) } + }; + var streamRegistry = new StreamHandlerRegistry(handlerRefs, NullLogger.Instance); + + var scopeAccessor = new ConsumeScopeAccessor(); + var serializer = new SystemTextJsonMessageSerializer(); + + var processor = new StreamProcessor( + scopeAccessor, + NullLogger.Instance, + typeRegistry, + streamRegistry, + serializer, + TimeProvider.System, + new BusConfiguration()); + + // Push the root provider as an outer (mismatched) scope first. If the processor + // were ever to fall back to a captured-at-ctor reference, rootHandlerProbe would + // be the resolved instance. The inner push of scopedProvider must override. + using var rootPush = scopeAccessor.Push(rootProvider); + using (scopeAccessor.Push(scopedProvider)) + { + var sequenceId = Guid.NewGuid().ToString(); + var bytes = System.Text.Json.JsonSerializer.SerializeToUtf8Bytes(new ScopeProbeMessage(Guid.NewGuid())); + var headers = new Dictionary + { + [HeaderKeys.MessageType] = HeaderKeys.ByteStream, + [HeaderKeys.SequenceId] = sequenceId, + [HeaderKeys.PacketNumber] = "0", + [HeaderKeys.LastPacketNumber] = "0", + [HeaderKeys.FullTypeName] = typeof(ScopeProbeMessage).AssemblyQualifiedName! + }; + var envelope = new Envelope { Headers = headers, Body = bytes }; + + await processor.ProcessAsync(bytes, typeof(ScopeProbeMessage), null, headers, envelope, CancellationToken.None); + } + + Assert.Equal(0, rootHandlerProbe.InvocationCount); + Assert.Equal(1, scopedHandlerProbe.InvocationCount); + } +} + +file sealed class ScopeProbeMessage(Guid correlationId) : Message(correlationId) +{ +} + +file sealed class ScopeProbeStreamHandler(string label) : IStreamHandler +{ + private int _count; + + public string Label { get; } = label; public int InvocationCount => Volatile.Read(ref _count); + public Task ExecuteAsync(ScopeProbeMessage message, IMessageBusReadStream stream, CancellationToken cancellationToken = default) + { + Interlocked.Increment(ref _count); + return Task.CompletedTask; + } +} + +file class SptMsg(Guid c) : Message(c) { +} + +file class SptThrowingHandler : IStreamHandler +{ + public const string ErrorMessage = "handler-boom"; + public Task ExecuteAsync(SptMsg message, IMessageBusReadStream stream, CancellationToken cancellationToken = default) + => throw new InvalidOperationException(ErrorMessage); +} + +file sealed class SptCapturingLogger : ILogger +{ + public sealed record LogEntry(LogLevel Level, string Message, Exception? Exception); + public List Entries { get; } = []; + + IDisposable? ILogger.BeginScope(TState state) => null; + bool ILogger.IsEnabled(LogLevel logLevel) => true; + + void ILogger.Log(LogLevel logLevel, EventId eventId, TState state, Exception? exception, + Func formatter) + { + Entries.Add(new LogEntry(logLevel, formatter(state, exception), exception)); + } +} + +file sealed class SptCounter +{ + private int _count; + public int Count => Volatile.Read(ref _count); + public void Increment() => Interlocked.Increment(ref _count); +} + +file sealed class SptCountingHandler(SptCounter counter) : IStreamHandler +{ + private readonly SptCounter _counter = counter; + + public Task ExecuteAsync(SptMsg message, IMessageBusReadStream stream, CancellationToken cancellationToken = default) + { + _counter.Increment(); + return Task.CompletedTask; + } +} + +// Simulates a handler that times out an internal sub-call via its own CancellationTokenSource. +// The OCE it throws carries that handler-owned token, not the caller's CT. +file sealed class SptUnrelatedOceHandler(CancellationToken unrelatedToken) : IStreamHandler +{ + public Task ExecuteAsync(SptMsg message, IMessageBusReadStream stream, CancellationToken cancellationToken = default) + => throw new OperationCanceledException("handler's own linked CTS", unrelatedToken); +} diff --git a/src/ServiceConnect.UnitTests/Properties/AssemblyInfo.cs b/src/ServiceConnect.UnitTests/Properties/AssemblyInfo.cs deleted file mode 100644 index 594b8d3bd..000000000 --- a/src/ServiceConnect.UnitTests/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,19 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("ServiceConnect.UnitTests")] -[assembly: AssemblyTrademark("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("631fba4f-b47d-49ac-babb-f925008ae2e7")] diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/AckNackFailureLogsTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/AckNackFailureLogsTests.cs new file mode 100644 index 000000000..769b7f034 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/AckNackFailureLogsTests.cs @@ -0,0 +1,268 @@ +using Microsoft.Extensions.Logging; +using Microsoft.Extensions.Logging.Abstractions; +using Microsoft.Extensions.Logging.Testing; +using Moq; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Verifies the AckFailed (EventId 6) and NackFailed (EventId 7) source-gen +/// log entries on : +/// - AckFailed fires when the channel rejects a BasicAckAsync (handler succeeded +/// so processed=true). Must include MessageId, DeliveryTag, and queue. +/// - NackFailed fires when the channel rejects a BasicNackAsync (handler +/// failed/retry so processed=false). +/// - The shutdown-noise Debug branches in the catch blocks stay unchanged — +/// covers those. +/// - When BasicProperties.MessageId is unset, the log falls back to +/// DeliveryTag-as-string so the entry still pinpoints a delivery. +/// +public sealed class AckNackFailureLogsTests +{ + private const string TestQueueName = "q"; + + [Fact] + public async Task AckFailure_OnHandlerSuccess_EmitsAckFailed_WithMessageId() + { + var (host, _, fakeLogger) = await BuildHostAsync( + handlerSuccess: true, + ackThrows: new global::RabbitMQ.Client.Exceptions.AlreadyClosedException( + new ShutdownEventArgs(ShutdownInitiator.Peer, 0, "broker reset"))); + + var args = MakeArgs(messageId: "msg-7"); + await host.RaiseDeliveryForTests(args); + + var record = Assert.Single( + fakeLogger.Collector.GetSnapshot(), + r => r.Id.Id == RabbitMqClientLog.AckFailedEventId); + Assert.Equal(LogLevel.Warning, record.Level); + Assert.Contains("msg-7", record.Message); + Assert.Contains(TestQueueName, record.Message); + // Sanity: DeliveryTag also appears in the message template. + Assert.Contains("42", record.Message); + // No NackFailed entry — handler succeeded. + Assert.DoesNotContain( + fakeLogger.Collector.GetSnapshot(), + r => r.Id.Id == RabbitMqClientLog.NackFailedEventId); + } + + [Fact] + public async Task NackFailure_OnHandlerFailure_EmitsNackFailed_WithMessageId() + { + // Path: handler returns Success=false → InboundMessageProcessor.HandleFailureAsync + // attempts a retry publish. Make the publish channel throw AlreadyClosedException + // (in the rethrow allow-list of the processor) — that bubbles up, the EventAsync + // catch sets processed=false, and the finally nacks. The nack throws too, so we + // hit LogAckOrNackFailure with processed=false → NackFailed. + var (host, _, fakeLogger) = await BuildHostAsync( + handlerSuccess: false, + publishThrows: new global::RabbitMQ.Client.Exceptions.AlreadyClosedException( + new ShutdownEventArgs(ShutdownInitiator.Peer, 0, "broker reset")), + nackThrows: new global::RabbitMQ.Client.Exceptions.AlreadyClosedException( + new ShutdownEventArgs(ShutdownInitiator.Peer, 0, "broker reset"))); + + var args = MakeArgs(messageId: "msg-9"); + await host.RaiseDeliveryForTests(args); + + var record = Assert.Single( + fakeLogger.Collector.GetSnapshot(), + r => r.Id.Id == RabbitMqClientLog.NackFailedEventId); + Assert.Equal(LogLevel.Warning, record.Level); + Assert.Contains("msg-9", record.Message); + Assert.Contains(TestQueueName, record.Message); + Assert.DoesNotContain( + fakeLogger.Collector.GetSnapshot(), + r => r.Id.Id == RabbitMqClientLog.AckFailedEventId); + } + + [Fact] + public async Task AckFailure_WithoutMessageId_FallsBackToDeliveryTag() + { + var (host, _, fakeLogger) = await BuildHostAsync( + handlerSuccess: true, + ackThrows: new global::RabbitMQ.Client.Exceptions.AlreadyClosedException( + new ShutdownEventArgs(ShutdownInitiator.Peer, 0, "broker reset"))); + + var args = MakeArgs(messageId: null); + await host.RaiseDeliveryForTests(args); + + var record = Assert.Single( + fakeLogger.Collector.GetSnapshot(), + r => r.Id.Id == RabbitMqClientLog.AckFailedEventId); + // Producer didn't stamp MessageId; the log falls back to the DeliveryTag string. + Assert.Contains("42", record.Message); + } + + [Fact] + public async Task AckFailure_OnGenericException_StillRoutesToAckFailed() + { + // The catch-all (catch (Exception ex)) routes through the same helper, so a + // non-AlreadyClosed/non-ObjectDisposed exception should still emit AckFailed + // when processed=true. + var (host, _, fakeLogger) = await BuildHostAsync( + handlerSuccess: true, + ackThrows: new InvalidOperationException("synthetic ack failure")); + + var args = MakeArgs(messageId: "msg-x"); + await host.RaiseDeliveryForTests(args); + + var record = Assert.Single( + fakeLogger.Collector.GetSnapshot(), + r => r.Id.Id == RabbitMqClientLog.AckFailedEventId); + Assert.Equal(LogLevel.Warning, record.Level); + Assert.Contains("msg-x", record.Message); + } + + // ── Harness ─────────────────────────────────────────────────────────────── + + /// + /// Builds a wired to a strict-ish consumer-channel + /// mock whose BasicAckAsync / BasicNackAsync can be configured to throw. The handler + /// returns success/failure per so the caller can + /// drive both the ack-path and nack-path branches of EventAsync's finally block. + /// + private static async Task<( + RabbitMqConsumerHost Host, + Mock ConsumerChannel, + FakeLogger FakeLogger)> BuildHostAsync( + bool handlerSuccess, + Exception? ackThrows = null, + Exception? nackThrows = null, + Exception? publishThrows = null) + { + var fakeLogger = new FakeLogger(); + + // ── Consumer channel ───────────────────────────────────────────────── + var consumerChannel = new Mock(MockBehavior.Loose); + consumerChannel.Setup(c => c.IsOpen).Returns(true); + consumerChannel.Setup(c => c.BasicQosAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + consumerChannel.Setup(c => c.BasicConsumeAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny(), + It.IsAny?>(), + It.IsAny(), It.IsAny())) + .ReturnsAsync("tag"); + var ackSetup = consumerChannel.Setup(c => c.BasicAckAsync( + It.IsAny(), It.IsAny(), It.IsAny())); + if (ackThrows is not null) + { + ackSetup.ThrowsAsync(ackThrows); + } + else + { + ackSetup.Returns(ValueTask.CompletedTask); + } + var nackSetup = consumerChannel.Setup(c => c.BasicNackAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())); + if (nackThrows is not null) + { + nackSetup.ThrowsAsync(nackThrows); + } + else + { + nackSetup.Returns(ValueTask.CompletedTask); + } + consumerChannel.Setup(c => c.CloseAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + consumerChannel.Setup(c => c.DisposeAsync()).Returns(ValueTask.CompletedTask); + consumerChannel.SetupAdd(c => c.ChannelShutdownAsync += It.IsAny>()); + consumerChannel.SetupRemove(c => c.ChannelShutdownAsync -= It.IsAny>()); + + // ── Publish channel ────────────────────────────────────────────────── + var publishChannel = new Mock(MockBehavior.Loose); + var publishSetup = publishChannel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())); + if (publishThrows is not null) + { + publishSetup.ThrowsAsync(publishThrows); + } + else + { + publishSetup.Returns(ValueTask.CompletedTask); + } + publishChannel.Setup(c => c.DisposeAsync()).Returns(ValueTask.CompletedTask); + + // ── Connection ─────────────────────────────────────────────────────── + var conn = new Mock(); + conn.Setup(c => c.CreateChannelAsync(It.IsAny())) + .ReturnsAsync(consumerChannel.Object); + conn.Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(publishChannel.Object); + conn.SetupGet(c => c.UnderlyingConnection).Returns((IConnection?)null); + + // ── Transport / queue / bus configuration ──────────────────────────── + var transport = new Mock(); + transport.SetupGet(t => t.MaxRetries).Returns(3); + transport.SetupGet(t => t.PrefetchCount).Returns((ushort)10); + transport.SetupProperty(t => t.GracefulShutdownTimeoutMilliseconds, 5000); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary()); + + var queue = new Mock(); + queue.SetupGet(q => q.QueueName).Returns(TestQueueName); + queue.SetupGet(q => q.ErrorQueueName).Returns("err"); + queue.SetupGet(q => q.AuditQueueName).Returns("audit"); + queue.SetupGet(q => q.DisableErrors).Returns(false); + queue.SetupGet(q => q.AuditingEnabled).Returns(false); + + var bus = new Mock(); + bus.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + bus.SetupGet(b => b.DeadLetterUnhandledMessages).Returns(false); + + var retry = new MessageRetryHandler(3, "err", TestQueueName, NullLogger.Instance); + var audit = new MessageAuditPublisher(queue.Object); + + var host = new RabbitMqConsumerHost( + conn.Object, transport.Object, queue.Object, bus.Object, + retry, new RabbitMqAdmissionGate(TestQueueName), audit, fakeLogger); + + await host.StartConsumingAsync( + (_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = handlerSuccess }), + queueName: TestQueueName); + + return (host, consumerChannel, fakeLogger); + } + + /// + /// Builds a delivery with the minimal headers that get past the type-name + /// admission guard and lets the caller pin MessageId. DeliveryTag is + /// fixed at 42 so the fallback-to-DeliveryTag test can pin it precisely. + /// + private static BasicDeliverEventArgs MakeArgs(string? messageId) + { + var properties = new BasicProperties + { + Headers = new Dictionary(StringComparer.Ordinal) + { + [HeaderKeys.FullTypeName] = "Foo.Bar", + }, + }; + if (messageId is not null) + { + properties.MessageId = messageId; + } + + return new BasicDeliverEventArgs( + consumerTag: "ct", + deliveryTag: 42, + redelivered: false, + exchange: "", + routingKey: TestQueueName, + properties: properties, + body: new byte[] { 1 }); + } + + /// Placeholder type so FakeLogger has a category — the actual ILogger + /// passed to the host is the non-generic . + public sealed class AckNackFailureTag { } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ConnectionDisposeAsyncRaceTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ConnectionDisposeAsyncRaceTests.cs new file mode 100644 index 000000000..5f4efebf8 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ConnectionDisposeAsyncRaceTests.cs @@ -0,0 +1,231 @@ +using System.Collections.Concurrent; +using System.Reflection; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public sealed class ConnectionDisposeAsyncRaceTests +{ + [Fact] + public async Task ConcurrentConnectAndDispose_NoSemaphoreObjectDisposedExceptionEscapes() + { + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary()); + + var connection = new Connection(transport.Object, "test-queue", NullLogger.Instance); + + // Tighten the dispose-lock timeout so DisposeAsync gives up waiting for a slow + // ConnectAsync rather than waiting the full 30-second default. + var timeoutField = typeof(Connection).GetField("_disposeLockTimeout", + BindingFlags.Instance | BindingFlags.NonPublic); + timeoutField!.SetValue(connection, TimeSpan.FromMilliseconds(50)); + + // Inject a fake connection-creator that hangs until the test cancels it. + var hangGate = new TaskCompletionSource(); + connection.CreateConnectionForTests = async (_, _, _, ct) => + { + await hangGate.Task.WaitAsync(ct).ConfigureAwait(false); + return Mock.Of(c => c.IsOpen == true); + }; + + var connectExceptions = new ConcurrentBag(); + var disposeExceptions = new ConcurrentBag(); + + // 8 concurrent connect attempts + 8 concurrent dispose calls. + var connectTasks = Enumerable.Range(0, 8).Select(_ => Task.Run(async () => + { + try + { + using var cts = new CancellationTokenSource(TimeSpan.FromSeconds(2)); + await connection.CreateChannelAsync(cts.Token); + } + catch (ObjectDisposedException ex) when (ex.ObjectName == nameof(Connection)) + { + // Connection was disposed before this caller got past the explicit ThrowIf check; + // legitimate ODE on the Connection itself, NOT on the SemaphoreSlim. + } + catch (OperationCanceledException) + { + // Cancellation is the expected outcome when the hangGate never resolves. + } + catch (Exception ex) + { + // Anything else — especially ObjectDisposedException with ObjectName "SemaphoreSlim" — + // indicates a connect/dispose race against the SemaphoreSlim leaked through. + connectExceptions.Add(ex); + } + })).ToArray(); + + var disposeTasks = Enumerable.Range(0, 8).Select(_ => Task.Run(async () => + { + try { await connection.DisposeAsync(); } + catch (Exception ex) { disposeExceptions.Add(ex); } + })).ToArray(); + + // Let the dispose tasks run a moment before cancelling the hang gate, so the + // dispose-timeout fires and the lock has been disposed before the connect tasks + // reach their finally block — this is the window the race would exploit. + await Task.Delay(200); + hangGate.TrySetCanceled(); + + await Task.WhenAll(connectTasks.Concat(disposeTasks)); + + // Invariant: no ObjectDisposedException from SemaphoreSlim escapes. + var semaphoreOdes = connectExceptions + .Where(e => e is ObjectDisposedException ode && + (ode.ObjectName?.Contains("Semaphore", StringComparison.Ordinal) == true || + ode.Message.Contains("Semaphore", StringComparison.Ordinal))) + .ToList(); + Assert.Empty(semaphoreOdes); + Assert.Empty(disposeExceptions); + } + + [Fact] + public async Task CreateChannelAsync_RaceLosesToDispose_ThrowsObjectDisposedExceptionNotInvalidOperation() + { + // Sequence the race deterministically using the lifecycle-attach hook. + // + // Exact race reproduced: + // 1. Thread A: CreateChannelAsync → ConnectAsync acquires _connectionLock. + // 2. CreateConnectionCoreAsync: _disposed check passes (still 0), _connection assigned, + // _lifecycle.Attach() is called — this is the hook we exploit. + // 3. The Attach hook fires DisposeAsync on Thread B. DisposeAsync sets _disposed=1 + // immediately (Interlocked.Exchange needs no lock), then blocks waiting for the lock. + // 4. Thread A: ConnectAsync releases _connectionLock. + // 5. Thread B (DisposeAsync): acquires lock, nulls _connection, releases lock. + // (Or Thread A's continuation runs first — either way _disposed=1.) + // 6. Thread A: post-ConnectAsync re-check (the new fix) sees _disposed=1 → ODE("Connection"). + // Without the fix: conn = Volatile.Read(ref _connection) → could be null → IOE, + // or conn = fakeConnection (captured before step 5) → mock's CreateChannelAsync + // throws ODE("IConnection") — wrong ObjectName, test fails either way. + // + // The test asserts ODE with ObjectName="Connection". With the fix the re-check throws + // exactly that. Without the fix the thread-racing outcome produces either IOE or + // ODE("IConnection") depending on scheduling — both fail the assertion. + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary()); + + var connection = new Connection(transport.Object, "test-queue", NullLogger.Instance); + + // Tight dispose-lock timeout so DisposeAsync gives up quickly if it can't acquire the lock. + var timeoutField = typeof(Connection).GetField("_disposeLockTimeout", + BindingFlags.Instance | BindingFlags.NonPublic); + timeoutField!.SetValue(connection, TimeSpan.FromMilliseconds(200)); + + // Gate: the SetupAdd callback signals this when DisposeAsync has set _disposed=1. + // Thread A (inside _connectionLock) waits on this before returning from Attach so that + // _disposed=1 is guaranteed visible at the post-ConnectAsync re-check in CreateChannelAsync. + var disposedSetSignal = new SemaphoreSlim(0, 1); + + var fakeConnection = new Mock(); + fakeConnection.SetupGet(c => c.IsOpen).Returns(false); + + // Without the fix, if Thread A reaches conn.CreateChannelAsync before DisposeAsync + // nulls _connection, the mock needs to surface a wrong-name ODE so the assertion fails. + fakeConnection + .Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ThrowsAsync(new ObjectDisposedException(nameof(IConnection))); + + // When _lifecycle.Attach subscribes to RecoverySucceededAsync, CreateConnectionCoreAsync + // has already passed its own _disposed check and assigned _connection. We fire DisposeAsync + // on a pool thread so it sets _disposed=1 (which needs no lock). We then wait in the + // callback until _disposed=1 is confirmed, so Thread A sees _disposed=1 at the re-check. + fakeConnection.SetupAdd(c => c.RecoverySucceededAsync += It.IsAny>()) + .Callback(() => + { + // Fire DisposeAsync on a pool thread. Its very first statement is + // Interlocked.Exchange(ref _disposed, 1) — no lock required. + _ = Task.Run(async () => + { + await connection.DisposeAsync().ConfigureAwait(false); + disposedSetSignal.Release(); + }); + + // Spin until _disposed=1 is visible on Thread A. DisposeAsync sets _disposed + // before it tries to acquire the lock, so it's safe to spin here while + // Thread A holds _connectionLock. + var disposedField = typeof(Connection).GetField("_disposed", + BindingFlags.Instance | BindingFlags.NonPublic)!; + var deadline = DateTime.UtcNow.AddSeconds(3); + while ((int)disposedField.GetValue(connection)! == 0 && DateTime.UtcNow < deadline) + { + Thread.SpinWait(100); + } + }); + + connection.CreateConnectionForTests = (_, _, _, _) => Task.FromResult(fakeConnection.Object); + + var createChannelTask = Task.Run(() => connection.CreateChannelAsync()); + + // Wait for DisposeAsync to finish (it acquires the lock after ConnectAsync releases it). + var signalled = await disposedSetSignal.WaitAsync(TimeSpan.FromSeconds(5)); + Assert.True(signalled, "DisposeAsync did not set _disposed=1 within 5s; synchronization broken."); + + var ex = await Assert.ThrowsAnyAsync(() => createChannelTask); + Assert.Equal(nameof(Connection), ex.ObjectName); + } + + [Fact] + public async Task DisposeDuringCreate_DoesNotOrphanConnection() + { + // Stage: a CreateConnectionForTests that blocks until the test releases. While the + // create is hanging inside _connectionLock, drive DisposeAsync with a tight lock + // timeout. DisposeAsync sets _disposed=1 (line 119), times out on _connectionLock, + // and proceeds to its forced-teardown path — but _connection is still null at this + // point, so the teardown is a no-op. The just-built connection that the create is + // about to return must be torn down by the post-build disposed check, NOT orphaned. + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary()); + + var connection = new Connection(transport.Object, "test-queue", NullLogger.Instance); + + // Tight dispose-lock timeout so DisposeAsync gives up after 50ms instead of 30s. + var timeoutField = typeof(Connection).GetField("_disposeLockTimeout", + BindingFlags.Instance | BindingFlags.NonPublic); + timeoutField!.SetValue(connection, TimeSpan.FromMilliseconds(50)); + + var disposeCount = 0; + var fakeConnection = new Mock(); + fakeConnection.SetupGet(c => c.IsOpen).Returns(false); // avoid mocking CloseAsync's overload + fakeConnection.Setup(c => c.Dispose()).Callback(() => Interlocked.Increment(ref disposeCount)); + + var createInvoked = new TaskCompletionSource(); + var createReleased = new TaskCompletionSource(); + connection.CreateConnectionForTests = async (_, _, _, _) => + { + createInvoked.TrySetResult(); + await createReleased.Task; // hold here until the test releases + return fakeConnection.Object; + }; + + // Begin a connect on a worker task. CreateChannelAsync calls ConnectAsync which + // acquires _connectionLock and calls into CreateConnectionForTests, blocking. + var connectTask = Task.Run(async () => + { + try { _ = await connection.CreateChannelAsync(); } + catch { /* expected — the create will throw ObjectDisposedException post-build */ } + }); + await createInvoked.Task; + + // DisposeAsync sets _disposed first, fails to acquire the lock within 50ms, falls + // through to the forced-teardown path, returns. _connection is still null. + var disposeTask = connection.DisposeAsync().AsTask(); + await disposeTask; + + // Release the create. The post-build disposed check should detect _disposed and + // tear down the just-built fakeConnection. + createReleased.TrySetResult(); + await connectTask; + + Assert.Equal(1, disposeCount); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ConnectionDisposeAsyncTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ConnectionDisposeAsyncTests.cs new file mode 100644 index 000000000..3d7dcd581 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ConnectionDisposeAsyncTests.cs @@ -0,0 +1,40 @@ +using System.Reflection; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public class ConnectionDisposeAsyncTests +{ + private static Connection CreateConnection() + { + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + return new Connection(transport.Object, "q", NullLogger.Instance); + } + + [Fact(Timeout = 5_000)] + public async Task DisposeAsync_LockHeldElsewhere_StillCompletesWithinDisposeTimeout() + { + var connection = CreateConnection(); + + var timeoutField = typeof(Connection).GetField("_disposeLockTimeout", + BindingFlags.NonPublic | BindingFlags.Instance)!; + timeoutField.SetValue(connection, TimeSpan.FromMilliseconds(100)); + + var lockField = typeof(Connection).GetField("_connectionLock", + BindingFlags.NonPublic | BindingFlags.Instance)!; + var sema = (SemaphoreSlim)lockField.GetValue(connection)!; + await sema.WaitAsync(); + + var disposeStart = DateTime.UtcNow; + await connection.DisposeAsync(); + var elapsed = DateTime.UtcNow - disposeStart; + + Assert.True(elapsed < TimeSpan.FromSeconds(3), + $"DisposeAsync should respect _disposeLockTimeout but took {elapsed}"); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ConnectionDisposeLogLevelTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ConnectionDisposeLogLevelTests.cs new file mode 100644 index 000000000..cc8053bf1 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ConnectionDisposeLogLevelTests.cs @@ -0,0 +1,68 @@ +using Microsoft.Extensions.Logging; +using Moq; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public sealed class ConnectionDisposeLogLevelTests +{ + private static (Connection connection, List<(LogLevel Level, string Message)> logs) Build(Func connectionFactory) + { + var captured = new List<(LogLevel, string)>(); + var logger = new Mock(); + logger.Setup(l => l.IsEnabled(It.IsAny())).Returns(true); + logger.Setup(l => l.Log( + It.IsAny(), + It.IsAny(), + It.IsAny(), + It.IsAny(), + (Func)It.IsAny())) + .Callback(new InvocationAction(invocation => + { + var level = (LogLevel)invocation.Arguments[0]; + var formatter = (Delegate)invocation.Arguments[4]; + var message = (string)formatter.DynamicInvoke(invocation.Arguments[2], invocation.Arguments[3])!; + captured.Add((level, message)); + })); + + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary(0)); + + var connection = new Connection(transport.Object, "test-queue", logger.Object) + { + CreateConnectionForTests = (_, _, _, _) => Task.FromResult(connectionFactory()), + }; + + return (connection, captured); + } + + [Fact] + public async Task DisposeAsync_TeardownThrows_LogsAtWarning() + { + var mockConn = new Mock(); + mockConn.SetupGet(c => c.IsOpen).Returns(true); + // CloseAsync() with no args is an extension method; mock the underlying overload it delegates to. + mockConn.Setup(c => c.CloseAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .ThrowsAsync(new InvalidOperationException("simulated teardown failure")); + mockConn.Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(Mock.Of()); + + var (connection, logs) = Build(() => mockConn.Object); + + // Establish the connection by creating a channel. + await connection.CreateChannelAsync(default); + + // Dispose; CloseAsync throws → the catch block must log at Warning. + await connection.DisposeAsync(); + + // The teardown failure surfaces as a Warning entry containing "Error closing + // connection"; the Debug-level entry is suppressed for this branch. + Assert.Contains(logs, l => l.Level == LogLevel.Warning && l.Message.Contains("Error closing connection")); + Assert.DoesNotContain(logs, l => l.Level == LogLevel.Debug && l.Message.Contains("Error closing connection")); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ConnectionFactoryBuilderConversionErrorTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ConnectionFactoryBuilderConversionErrorTests.cs new file mode 100644 index 000000000..89b6a0800 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ConnectionFactoryBuilderConversionErrorTests.cs @@ -0,0 +1,78 @@ +using Moq; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public sealed class ConnectionFactoryBuilderConversionErrorTests +{ + private static ITransportConfiguration TransportWithSettings(IDictionary settings) + { + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary(settings)); + return transport.Object; + } + + [Fact] + public void Build_PortIsUnconvertibleString_ThrowsInvalidOperationWithKeyAndValueAndType() + { + var transport = TransportWithSettings(new Dictionary + { + [RabbitMQSettingKeys.Port] = "not-a-port", + }); + + var ex = Assert.Throws(() => ConnectionFactoryBuilder.Build(transport)); + + Assert.Contains(RabbitMQSettingKeys.Port, ex.Message); + Assert.Contains("not-a-port", ex.Message); + Assert.Contains("System.String", ex.Message); + Assert.NotNull(ex.InnerException); + Assert.IsType(ex.InnerException); + } + + [Fact] + public void Build_HeartbeatIsUnconvertibleString_ThrowsInvalidOperationWithKeyAndValueAndType() + { + var transport = TransportWithSettings(new Dictionary + { + [RabbitMQSettingKeys.HeartbeatTime] = "abc", + }); + + var ex = Assert.Throws(() => ConnectionFactoryBuilder.Build(transport)); + + Assert.Contains(RabbitMQSettingKeys.HeartbeatTime, ex.Message); + Assert.Contains("abc", ex.Message); + Assert.Contains("System.String", ex.Message); + Assert.NotNull(ex.InnerException); + Assert.IsType(ex.InnerException); + } + + [Fact] + public void Build_PortIsOverflowingLong_ThrowsInvalidOperationWithKey() + { + var transport = TransportWithSettings(new Dictionary + { + [RabbitMQSettingKeys.Port] = long.MaxValue, + }); + + var ex = Assert.Throws(() => ConnectionFactoryBuilder.Build(transport)); + + Assert.Contains(RabbitMQSettingKeys.Port, ex.Message); + Assert.NotNull(ex.InnerException); + Assert.IsType(ex.InnerException); + } + + [Fact] + public void Build_PortIsValidInt_DoesNotThrow() + { + var transport = TransportWithSettings(new Dictionary + { + [RabbitMQSettingKeys.Port] = 5672, + }); + + var factory = ConnectionFactoryBuilder.Build(transport); + Assert.Equal(5672, factory.Port); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ConnectionFactoryBuilderRecoveryIntervalTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ConnectionFactoryBuilderRecoveryIntervalTests.cs new file mode 100644 index 000000000..b4b0c8e61 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ConnectionFactoryBuilderRecoveryIntervalTests.cs @@ -0,0 +1,67 @@ +using Moq; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Verifies the client-setting wires +/// through to . The unset path keeps +/// RabbitMQ.Client's own default; non-TimeSpan values throw with the key, value, and type so +/// misconfiguration is loud. +/// +public sealed class ConnectionFactoryBuilderRecoveryIntervalTests +{ + private static ITransportConfiguration TransportWithSettings(IDictionary settings) + { + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary(settings)); + return transport.Object; + } + + [Fact] + public void Build_WithNetworkRecoveryIntervalSet_AppliesToFactory() + { + var transport = TransportWithSettings(new Dictionary + { + [RabbitMQSettingKeys.NetworkRecoveryInterval] = TimeSpan.FromSeconds(30), + }); + + var factory = ConnectionFactoryBuilder.Build(transport); + + Assert.Equal(TimeSpan.FromSeconds(30), factory.NetworkRecoveryInterval); + } + + [Fact] + public void Build_WithoutNetworkRecoveryInterval_KeepsRabbitMqClientDefault() + { + var transport = TransportWithSettings(new Dictionary()); + + var factory = ConnectionFactoryBuilder.Build(transport); + + // Don't assert a specific value here — that would couple this test to RabbitMQ.Client's + // current 5-second default. Instead, compare against a freshly-constructed + // ConnectionFactory: whatever the upstream default is, ours must match it when the + // setting is unset. + var defaultFactory = new ConnectionFactory(); + Assert.Equal(defaultFactory.NetworkRecoveryInterval, factory.NetworkRecoveryInterval); + } + + [Fact] + public void Build_WithNetworkRecoveryIntervalNonTimeSpan_Throws() + { + var transport = TransportWithSettings(new Dictionary + { + [RabbitMQSettingKeys.NetworkRecoveryInterval] = "30s", + }); + + var ex = Assert.Throws(() => ConnectionFactoryBuilder.Build(transport)); + + Assert.Contains(RabbitMQSettingKeys.NetworkRecoveryInterval, ex.Message); + Assert.Contains("30s", ex.Message); + Assert.Contains("System.String", ex.Message); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ConnectionFactoryBuilderTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ConnectionFactoryBuilderTests.cs new file mode 100644 index 000000000..ab8a4b7b0 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ConnectionFactoryBuilderTests.cs @@ -0,0 +1,56 @@ +using Moq; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public class ConnectionFactoryBuilderTests +{ + private static Mock Transport(IReadOnlyDictionary? clientSettings = null) + { + var mock = new Mock(); + mock.SetupGet(t => t.Host).Returns("localhost"); + mock.SetupGet(t => t.ClientSettings).Returns(clientSettings ?? new Dictionary()); + return mock; + } + + [Fact] + public void Build_WhenHeartbeatTimeConfigured_HonoursConfiguredInterval() + { + // Heartbeat resolution lives in ConnectionFactoryBuilder so producer and + // consumer both honour the configured HeartbeatTime. The built factory must + // carry the caller's value rather than falling back to the RabbitMQ default. + var transport = Transport(new Dictionary + { + [RabbitMQSettingKeys.HeartbeatTime] = 45, + }); + + var factory = ConnectionFactoryBuilder.Build(transport.Object); + + Assert.Equal(TimeSpan.FromSeconds(45), factory.RequestedHeartbeat); + } + + [Fact] + public void Build_WhenHeartbeatDisabled_UsesZero() + { + // TimeSpan.Zero tells the RabbitMQ client to suppress heartbeats entirely. + var transport = Transport(new Dictionary + { + [RabbitMQSettingKeys.HeartbeatEnabled] = false, + [RabbitMQSettingKeys.HeartbeatTime] = 45, + }); + + var factory = ConnectionFactoryBuilder.Build(transport.Object); + + Assert.Equal(TimeSpan.Zero, factory.RequestedHeartbeat); + } + + [Fact] + public void Build_WhenNoHeartbeatConfigured_Uses120SecondDefault() + { + var factory = ConnectionFactoryBuilder.Build(Transport().Object); + + Assert.Equal(TimeSpan.FromSeconds(120), factory.RequestedHeartbeat); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ConnectionFactoryBuilderTopologyRecoveryTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ConnectionFactoryBuilderTopologyRecoveryTests.cs new file mode 100644 index 000000000..18f8bd182 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ConnectionFactoryBuilderTopologyRecoveryTests.cs @@ -0,0 +1,42 @@ +using Moq; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Verifies that enables both connection auto-recovery +/// and library-level topology recovery. Topology recovery is required for HA cluster failover: +/// the application only redeclares topology during startup and has no hook on +/// IConnection.RecoverySucceededAsync, so a recovered connection to a fresh broker node +/// must rely on the library to redeclare exchanges, queues, and bindings. The library's recovery +/// is idempotent for ServiceConnect's declarations (durable, no passive calls, fixed arguments). +/// +public sealed class ConnectionFactoryBuilderTopologyRecoveryTests +{ + private static ITransportConfiguration MinimalTransport() + { + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary()); + return transport.Object; + } + + [Fact] + public void Build_TopologyRecoveryEnabled_IsTrue() + { + var factory = ConnectionFactoryBuilder.Build(MinimalTransport()); + + Assert.True(factory.TopologyRecoveryEnabled); + } + + [Fact] + public void Build_AutomaticRecoveryEnabled_IsTrue() + { + var factory = ConnectionFactoryBuilder.Build(MinimalTransport()); + + Assert.True(factory.AutomaticRecoveryEnabled); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ConnectionFactoryBuilderWarningTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ConnectionFactoryBuilderWarningTests.cs new file mode 100644 index 000000000..85eeed245 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ConnectionFactoryBuilderWarningTests.cs @@ -0,0 +1,51 @@ +using Microsoft.Extensions.Logging; +using Microsoft.Extensions.Logging.Testing; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Verifies that ConnectionFactoryBuilder.Build no longer emits the plaintext-non-loopback warning +/// (the warning was moved to the core layer; see ServiceConnectBuilderPlaintextWarningTests). +/// +public class ConnectionFactoryBuilderWarningTests +{ + [Theory] + [InlineData("localhost")] + [InlineData("127.0.0.1")] + [InlineData("10.0.0.5")] + [InlineData("rabbit.example.com")] + [InlineData("rabbitmq")] + public void Build_WithSslDisabled_EmitsNoWarning(string host) + { + // The plaintext warning moved to the core layer (ServiceConnectBuilder.WarnIfPlaintextOnNonLoopbackHost + // called from BusHostedService.StartAsync). The adapter no longer duplicates it. + var transport = new TransportConfiguration { Host = host, SslEnabled = false }; + var fakeLogger = new FakeLogger(); + + ConnectionFactoryBuilder.Build(transport, fakeLogger); + + Assert.Empty(fakeLogger.Collector.GetSnapshot()); + } + + [Fact] + public void Build_WithSslEnabled_EmitsNoWarning() + { + var transport = new TransportConfiguration + { + Host = "rabbit.example.com", + SslEnabled = true, + ServerName = "rabbit.example.com", + }; + var fakeLogger = new FakeLogger(); + + ConnectionFactoryBuilder.Build(transport, fakeLogger); + + Assert.Empty(fakeLogger.Collector.GetSnapshot()); + } + + /// Placeholder type so FakeLogger has a category. + public sealed class ConnectionFactoryBuilderTag { } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ConnectionLifecycleLogsTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ConnectionLifecycleLogsTests.cs new file mode 100644 index 000000000..59491bd1c --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ConnectionLifecycleLogsTests.cs @@ -0,0 +1,229 @@ +using Microsoft.Extensions.Logging; +using Microsoft.Extensions.Logging.Testing; +using Moq; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Verifies the source-generated connection-lifecycle log entries on +/// : +/// - ConnectionOpened (Information) emitted from +/// immediately after a fresh is established. +/// - ConnectionRecovered (Information) emitted from +/// RecoverySucceededAsync after auto-recovery rejoins the broker. +/// - ConnectionLost (Information) emitted from +/// ConnectionShutdownAsync when the broker or transport drops the +/// connection. +/// All three carry stable EventIds (2, 4, 5) so log-aggregation pipelines can +/// pin alerts without scraping the formatted message. +/// +public sealed class ConnectionLifecycleLogsTests +{ + [Fact] + public async Task CreateConnection_EmitsConnectionOpened_AtInformation() + { + var (connection, fakeConn, fakeLogger) = Build(); + + // Trigger lazy connection establishment via the public CreateChannelAsync entry + // point — that's the path operators actually take and the one the source-gen + // log lives on. + await connection.CreateChannelAsync(default); + + var record = Assert.Single( + fakeLogger.Collector.GetSnapshot(), + r => r.Id.Id == RabbitMqClientLog.ConnectionOpenedEventId); + Assert.Equal(LogLevel.Information, record.Level); + Assert.Contains("rabbit.example.com", record.Message); + Assert.Contains("5672", record.Message); + Assert.Contains("connection-name", record.Message); + // Vhost falls back to "/" — TransportConfiguration ships the empty default, + // so the test exercises the fallback path the production setup actually hits. + Assert.Contains("vhost='/'", record.Message); + await connection.DisposeAsync(); + // Subscribe-before-attach is verified implicitly: the connection-recovered and + // connection-lost handlers are now attached on fakeConn (see other tests). + _ = fakeConn; + } + + [Fact] + public async Task RecoverySucceeded_EmitsConnectionRecovered_AtInformation() + { + var (connection, fakeConn, fakeLogger) = Build(); + await connection.CreateChannelAsync(default); + // Drop the ConnectionOpened entry from the snapshot baseline so the assertion + // pins the post-event state precisely. + fakeLogger.Collector.Clear(); + + await fakeConn.RaiseRecoverySucceededAsync(); + + var record = Assert.Single(fakeLogger.Collector.GetSnapshot()); + Assert.Equal(RabbitMqClientLog.ConnectionRecoveredEventId, record.Id.Id); + Assert.Equal(LogLevel.Information, record.Level); + Assert.Contains("rabbit.example.com", record.Message); + Assert.Contains("connection-name", record.Message); + await connection.DisposeAsync(); + } + + [Fact] + public async Task ConnectionShutdown_EmitsConnectionLost_AtInformation() + { + var (connection, fakeConn, fakeLogger) = Build(); + await connection.CreateChannelAsync(default); + fakeLogger.Collector.Clear(); + + await fakeConn.RaiseConnectionShutdownAsync( + new ShutdownEventArgs(ShutdownInitiator.Peer, replyCode: 320, replyText: "CONNECTION_FORCED - broker shutdown")); + + var record = Assert.Single(fakeLogger.Collector.GetSnapshot()); + Assert.Equal(RabbitMqClientLog.ConnectionLostEventId, record.Id.Id); + Assert.Equal(LogLevel.Information, record.Level); + Assert.Contains("rabbit.example.com", record.Message); + Assert.Contains("Peer", record.Message); + Assert.Contains("CONNECTION_FORCED", record.Message); + await connection.DisposeAsync(); + } + + [Fact] + public async Task DisposeAsync_DetachesLifecycleHandlers() + { + var (connection, fakeConn, fakeLogger) = Build(); + await connection.CreateChannelAsync(default); + await connection.DisposeAsync(); + + fakeLogger.Collector.Clear(); + // After dispose the handlers must be unsubscribed; raising the events should be a no-op. + await fakeConn.RaiseRecoverySucceededAsync(); + await fakeConn.RaiseConnectionShutdownAsync( + new ShutdownEventArgs(ShutdownInitiator.Application, 0, "post-dispose")); + + Assert.Empty(fakeLogger.Collector.GetSnapshot()); + } + + // ── Harness ─────────────────────────────────────────────────────────────── + + /// + /// Builds a wired to a + /// and a . The connection is not yet established; the caller + /// drives it through . + /// + private static (Connection connection, FakeUnderlyingConnection fakeConn, FakeLogger fakeLogger) Build() + { + var fakeConn = new FakeUnderlyingConnection + { + EndpointHostName = "rabbit.example.com", + EndpointPort = 5672, + ClientProvidedName = "connection-name", + }; + + // Channel-open is needed because CreateChannelAsync delegates to the underlying + // IConnection. Loose mock with a default IChannel is enough here. + var channel = Mock.Of(); + fakeConn.ChannelToReturn = channel; + + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("rabbit.example.com"); + transport.SetupGet(t => t.VirtualHost).Returns(string.Empty); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary()); + + var fakeLogger = new FakeLogger(); + + var connection = new Connection(transport.Object, "test-queue", fakeLogger) + { + CreateConnectionForTests = (_, _, _, _) => Task.FromResult(fakeConn), + }; + + return (connection, fakeConn, fakeLogger); + } + + /// Placeholder type so FakeLogger has a category — the actual ILogger + /// passed to is the non-generic . + public sealed class ConnectionLifecycleTag { } + + // ── Test double ─────────────────────────────────────────────────────────── + + /// + /// Concrete stub that implements only the parts of + /// the lifecycle hooks actually touch. Exposes RaiseXxx helpers so tests can + /// fire RecoverySucceededAsync / ConnectionShutdownAsync directly, + /// which Moq cannot do cleanly for AsyncEventHandler-shaped events. + /// + private sealed class FakeUnderlyingConnection : IConnection + { + public string EndpointHostName { get; set; } = "localhost"; + public int EndpointPort { get; set; } = 5672; + public string ClientProvidedName { get; set; } = string.Empty; + public IChannel? ChannelToReturn { get; set; } + + private AsyncEventHandler? _recoverySucceeded; + private AsyncEventHandler? _connectionShutdown; + + public event AsyncEventHandler RecoverySucceededAsync + { + add => _recoverySucceeded += value; + remove => _recoverySucceeded -= value; + } + + public event AsyncEventHandler ConnectionShutdownAsync + { + add => _connectionShutdown += value; + remove => _connectionShutdown -= value; + } + + public Task RaiseRecoverySucceededAsync() + { + var handler = _recoverySucceeded; + return handler is not null ? handler(this, AsyncEventArgs.CreateOrDefault(CancellationToken.None)) : Task.CompletedTask; + } + + public Task RaiseConnectionShutdownAsync(ShutdownEventArgs args) + { + var handler = _connectionShutdown; + return handler is not null ? handler(this, args) : Task.CompletedTask; + } + + public AmqpTcpEndpoint Endpoint => new(EndpointHostName, EndpointPort); + string IConnection.ClientProvidedName => ClientProvidedName; + + public bool IsOpen => true; + + public Task CreateChannelAsync(CreateChannelOptions? options = null, CancellationToken cancellationToken = default) + => Task.FromResult(ChannelToReturn ?? throw new InvalidOperationException("ChannelToReturn not set")); + + public Task CloseAsync(ushort reasonCode, string reasonText, TimeSpan timeout, bool abort, CancellationToken cancellationToken = default) + => Task.CompletedTask; + + public Task UpdateSecretAsync(string newSecret, string reason, CancellationToken cancellationToken = default) + => Task.CompletedTask; + + public void Dispose() { } + public ValueTask DisposeAsync() => ValueTask.CompletedTask; + + // ── Unused IConnection members ──────────────────────────────────────── + + public ushort ChannelMax => throw new NotImplementedException(); + public IDictionary ClientProperties => throw new NotImplementedException(); + public TimeSpan Heartbeat => throw new NotImplementedException(); + public IProtocol Protocol => throw new NotImplementedException(); + public uint FrameMax => throw new NotImplementedException(); + public ShutdownEventArgs? CloseReason => throw new NotImplementedException(); + public IDictionary? ServerProperties => throw new NotImplementedException(); + public IEnumerable ShutdownReport => throw new NotImplementedException(); + public int LocalPort => throw new NotImplementedException(); + public int RemotePort => throw new NotImplementedException(); + +#pragma warning disable CS0067 + public event AsyncEventHandler? CallbackExceptionAsync; + public event AsyncEventHandler? ConnectionBlockedAsync; + public event AsyncEventHandler? ConnectionUnblockedAsync; + public event AsyncEventHandler? ConnectionRecoveryErrorAsync; + public event AsyncEventHandler? QueueNameChangedAfterRecoveryAsync; + public event AsyncEventHandler? RecoveringConsumerAsync; + public event AsyncEventHandler? ConsumerTagChangeAfterRecoveryAsync; +#pragma warning restore CS0067 + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ConnectionTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ConnectionTests.cs new file mode 100644 index 000000000..0a516ad48 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ConnectionTests.cs @@ -0,0 +1,85 @@ +using System.Reflection; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public class ConnectionTests +{ + private static Connection CreateConnection() + { + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary()); + + return new Connection(transport.Object, "test-queue", NullLogger.Instance); + } + + private static void SetField(Connection connection, string fieldName, T value) + { + typeof(Connection) + .GetField(fieldName, BindingFlags.Instance | BindingFlags.NonPublic)! + .SetValue(connection, value); + } + + private static TField GetField(Connection connection, string fieldName) + { + return (TField)typeof(Connection) + .GetField(fieldName, BindingFlags.Instance | BindingFlags.NonPublic)! + .GetValue(connection)!; + } + + [Fact] + public async Task CreateChannelAsync_AfterDispose_ThrowsObjectDisposedException() + { + var connection = CreateConnection(); + var underlying = new Mock(); + underlying.SetupGet(c => c.IsOpen).Returns(true); + underlying.Setup(c => c.CloseAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + SetField(connection, "_connection", underlying.Object); + + await connection.DisposeAsync(); + + await Assert.ThrowsAsync(() => connection.CreateChannelAsync()); + } + + [Fact] + public async Task DisposeAsync_WhenCalledTwice_DoesNotThrowAndClosesConnectionOnce() + { + var connection = CreateConnection(); + var underlying = new Mock(); + underlying.SetupGet(c => c.IsOpen).Returns(true); + underlying.Setup(c => c.CloseAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + SetField(connection, "_connection", underlying.Object); + + await connection.DisposeAsync(); + await connection.DisposeAsync(); + + underlying.Verify(c => c.CloseAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny()), Times.Once); + underlying.Verify(c => c.Dispose(), Times.Once); + } + + [Fact] + public async Task DisposeAsync_DoesNotDisposeConnectionLockSemaphore() + { + // The connection-lock semaphore is intentionally NOT disposed (mirrors ProducerConnection) + // so a concurrent ConnectAsync whose Release() races with DisposeAsync's lock-timeout + // path doesn't observe ObjectDisposedException. The semaphore is GC'd with the Connection. + var connection = CreateConnection(); + + await connection.DisposeAsync(); + + var semaphore = GetField(connection, "_connectionLock"); + // Wait(0) succeeds (returns true) because the semaphore is alive and immediately available. + Assert.True(semaphore.Wait(0)); + semaphore.Release(); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ConsumerCountValidationTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ConsumerCountValidationTests.cs new file mode 100644 index 000000000..82af71ca2 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ConsumerCountValidationTests.cs @@ -0,0 +1,58 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Verifies that Consumer.StartConsumingAsync rejects a ConsumerCount below 1 even when +/// the consumer is constructed directly, bypassing the builder validator. +/// +public sealed class ConsumerCountValidationTests +{ + private static Consumer CreateConsumerWithCount(int consumerCount) + { + var transport = new Mock(); + transport.SetupGet(t => t.MaxRetries).Returns(0); + transport.SetupGet(t => t.RetryDelay).Returns(0); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary()); + + var queue = new Mock(); + queue.SetupGet(q => q.QueueName).Returns("q"); + queue.SetupGet(q => q.ErrorQueueName).Returns("err"); + queue.SetupGet(q => q.AuditQueueName).Returns("audit"); + queue.SetupGet(q => q.PurgeQueueOnStartup).Returns(false); + queue.SetupGet(q => q.AuditingEnabled).Returns(false); + + var bus = new Mock(); + bus.SetupGet(b => b.ConsumerCount).Returns(consumerCount); + + // Stub passed to ctor; the guard fires before any I/O so wiring is unused. + var connection = new Mock(); + + return new Consumer(transport.Object, queue.Object, bus.Object, + NullLogger.Instance, connection.Object); + } + + [Theory] + [InlineData(0)] + [InlineData(-1)] + public async Task StartConsumingAsync_ConsumerCountLessThanOne_ThrowsInvalidOperationException(int count) + { + var consumer = CreateConsumerWithCount(count); + + var ex = await Assert.ThrowsAsync(() => + consumer.StartConsumingAsync( + "q", + ["TestMessage"], + (_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }))); + + Assert.Contains("BusConfiguration.ConsumerCount", ex.Message); + Assert.Contains(count.ToString(), ex.Message); + + await consumer.DisposeAsync(); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ConsumerDisposeTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ConsumerDisposeTests.cs new file mode 100644 index 000000000..137cef93a --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ConsumerDisposeTests.cs @@ -0,0 +1,127 @@ +using System.Collections.Concurrent; +using System.Reflection; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Unit-level guards on Consumer.DisposeAsync — covers field-state invariants that +/// must hold so a subsequent StartConsumingAsync does not reuse disposed resources +/// or accumulate stale per-cycle clients. +/// +public class ConsumerDisposeTests +{ + private static Consumer CreateConsumer(IServiceConnectConnection? connection = null) + { + var transport = new Mock(); + transport.SetupGet(t => t.MaxRetries).Returns(0); + transport.SetupGet(t => t.RetryDelay).Returns(0); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary()); + + var queue = new Mock(); + queue.SetupGet(q => q.QueueName).Returns("q"); + queue.SetupGet(q => q.ErrorQueueName).Returns("err"); + queue.SetupGet(q => q.AuditQueueName).Returns("audit"); + queue.SetupGet(q => q.PurgeQueueOnStartup).Returns(false); + queue.SetupGet(q => q.AuditingEnabled).Returns(false); + + var bus = new Mock(); + bus.SetupGet(b => b.ConsumerCount).Returns(1); + bus.SetupGet(b => b.DisposeTimeout).Returns(TimeSpan.FromSeconds(30)); + + return new Consumer(transport.Object, queue.Object, bus.Object, NullLogger.Instance, connection); + } + + private static void SetField(Consumer consumer, string fieldName, T value) + { + typeof(Consumer) + .GetField(fieldName, BindingFlags.Instance | BindingFlags.NonPublic)! + .SetValue(consumer, value); + } + + private static T GetField(Consumer consumer, string fieldName) + { + return (T)typeof(Consumer) + .GetField(fieldName, BindingFlags.Instance | BindingFlags.NonPublic)! + .GetValue(consumer)!; + } + + [Fact] + public async Task DisposeAsync_WhenOwnsConnection_NullsConnectionField() + { + var consumer = CreateConsumer(); + var connectionMock = new Mock(); + connectionMock.Setup(c => c.DisposeAsync()).Returns(ValueTask.CompletedTask); + SetField(consumer, "_connection", connectionMock.Object); + SetField(consumer, "_ownsConnection", true); + + await consumer.DisposeAsync(); + + Assert.Null(GetField(consumer, "_connection")); + connectionMock.Verify(c => c.DisposeAsync(), Times.Once); + } + + [Fact] + public async Task DisposeAsync_WhenConnectionIsCallerOwned_LeavesFieldIntact() + { + var connectionMock = new Mock(); + var consumer = CreateConsumer(connectionMock.Object); + + await consumer.DisposeAsync(); + + // Caller-owned connection MUST NOT be disposed by Consumer. + connectionMock.Verify(c => c.DisposeAsync(), Times.Never); + // Caller-owned connection field must remain intact so the same instance is + // reused across StartConsumingAsync calls. + Assert.Same(connectionMock.Object, GetField(consumer, "_connection")); + } + + [Fact] + public async Task DisposeAsync_DisposesAllClientsAndClearsBag() + { + var consumer = CreateConsumer(); + var clients = GetField>(consumer, "_clients"); + + var c1 = new Mock(); + c1.Setup(c => c.DisposeAsync()).Returns(ValueTask.CompletedTask); + var c2 = new Mock(); + c2.Setup(c => c.DisposeAsync()).Returns(ValueTask.CompletedTask); + + clients.Add(c1.Object); + clients.Add(c2.Object); + + await consumer.DisposeAsync(); + + // Each registered client is disposed exactly once. + c1.Verify(c => c.DisposeAsync(), Times.Once); + c2.Verify(c => c.DisposeAsync(), Times.Once); + // Bag is empty after dispose so a subsequent StartConsumingAsync does not + // accumulate stale entries. + Assert.Empty(clients); + } + + [Fact] + public async Task DisposeAsync_AcrossMultipleCycles_LeavesBagBounded() + { + var consumer = CreateConsumer(); + var clients = GetField>(consumer, "_clients"); + + for (int cycle = 0; cycle < 5; cycle++) + { + // Simulate a Start that registered 3 clients, then a Dispose. + for (int i = 0; i < 3; i++) + { + var mock = new Mock(); + mock.Setup(c => c.DisposeAsync()).Returns(ValueTask.CompletedTask); + clients.Add(mock.Object); + } + await consumer.DisposeAsync(); + Assert.Empty(clients); + } + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ConsumerParallelDisposeTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ConsumerParallelDisposeTests.cs new file mode 100644 index 000000000..6f094d7cf --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ConsumerParallelDisposeTests.cs @@ -0,0 +1,116 @@ +using System.Collections.Concurrent; +using System.Diagnostics; +using System.Reflection; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public sealed class ConsumerParallelDisposeTests +{ + private static Consumer CreateConsumer(int consumerCount = 5) + { + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + transport.SetupGet(t => t.RetryDelay).Returns(0); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary()); + + var queueConfig = new Mock(); + queueConfig.SetupGet(q => q.QueueName).Returns("q"); + + var busConfig = new Mock(); + busConfig.SetupGet(b => b.ConsumerCount).Returns(consumerCount); + + return new Consumer(transport.Object, queueConfig.Object, busConfig.Object, + NullLogger.Instance); + } + + private static ConcurrentBag GetClients(Consumer consumer) + { + return (ConcurrentBag)typeof(Consumer) + .GetField("_clients", BindingFlags.Instance | BindingFlags.NonPublic)! + .GetValue(consumer)!; + } + + [Fact] + public async Task DisposeAsync_DisposesHostsInParallel_NotSequentially() + { + const int hostCount = 5; + var hostDelay = TimeSpan.FromMilliseconds(200); + + var consumer = CreateConsumer(hostCount); + var clients = GetClients(consumer); + + var fakeHosts = Enumerable.Range(0, hostCount) + .Select(_ => new DelayingDisposable(hostDelay)) + .ToList(); + + foreach (var host in fakeHosts) + { + clients.Add(host); + } + + var sw = Stopwatch.StartNew(); + await consumer.DisposeAsync(); + sw.Stop(); + + // Sequential dispose would be ~hostCount * hostDelay = 1000ms. + // Parallel dispose should be ~hostDelay + small overhead = ~250ms. + Assert.True(sw.Elapsed < TimeSpan.FromMilliseconds(500), + $"Dispose took {sw.ElapsedMilliseconds}ms; expected < 500ms (parallel). Sequential would be ~{hostCount * hostDelay.TotalMilliseconds}ms."); + + Assert.All(fakeHosts, h => Assert.True(h.WasDisposed)); + } + + [Fact] + public async Task DisposeAsync_OneHostThrows_OtherHostsStillDisposed() + { + const int hostCount = 5; + + var consumer = CreateConsumer(hostCount); + var clients = GetClients(consumer); + + var goodHosts = Enumerable.Range(0, hostCount - 1) + .Select(_ => new DelayingDisposable(TimeSpan.FromMilliseconds(50))) + .ToList(); + var badHost = new ThrowingDisposable(); + + foreach (var host in goodHosts) + { + clients.Add(host); + } + clients.Add(badHost); + + // The throwing host shouldn't propagate — Consumer's inner try/catch swallows + // per-host failures so the remaining hosts still complete their dispose. + await consumer.DisposeAsync(); + + Assert.All(goodHosts, h => Assert.True(h.WasDisposed)); + Assert.True(badHost.DisposeAttempted); + } + + private sealed class DelayingDisposable(TimeSpan delay) : IAsyncDisposable + { + public bool WasDisposed { get; private set; } + + public async ValueTask DisposeAsync() + { + await Task.Delay(delay).ConfigureAwait(false); + WasDisposed = true; + } + } + + private sealed class ThrowingDisposable : IAsyncDisposable + { + public bool DisposeAttempted { get; private set; } + + public ValueTask DisposeAsync() + { + DisposeAttempted = true; + throw new InvalidOperationException("simulated dispose failure"); + } + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ConsumerProcessMetricsTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ConsumerProcessMetricsTests.cs new file mode 100644 index 000000000..ee0aff297 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ConsumerProcessMetricsTests.cs @@ -0,0 +1,275 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Diagnostics; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.UnitTests.Diagnostics; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Drives through its three observable per-delivery outcomes +/// (success, error, retry) and asserts the OTel-standard process metrics fire with the +/// correct messaging.outcome tag. +/// +public sealed class ConsumerProcessMetricsTests +{ + [Fact] + public async Task ProcessAsync_HandlerSucceeds_RecordsDurationAndConsumedSuccess() + { + // Per-test unique queue name lets MetricCollector's destination-name filter isolate + // emissions from other tests running in parallel that also drive the consumer host. + var queueName = $"q-success-{Guid.NewGuid():N}"; + using var collector = new MetricCollector("messaging.destination.name", queueName); + + // success path: handler returns Success=true; ProcessAsync runs to completion, returns true, + // no exception. Outcome = "success". + static Task Handler( + ReadOnlyMemory _, string __, IDictionary ___, CancellationToken ____) + => Task.FromResult(new ConsumeEventResult { Success = true }); + + var (host, _, _) = await BuildHostAsync(Handler, queueName: queueName); + await using (host) + { + await host.RaiseDeliveryForTests(MakeArgs(deliveryTag: 1)); + } + + var duration = Assert.Single(collector.GetDoubleRecords(MetricNames.ProcessDuration)); + Assert.Equal("rabbitmq", duration.GetTag("messaging.system")); + Assert.Equal("process", duration.GetTag("messaging.operation.type")); + Assert.Equal("process", duration.GetTag("messaging.operation.name")); + Assert.Null(duration.GetTag("messaging.operation")); + Assert.Equal(queueName, duration.GetTag("messaging.destination.name")); + Assert.Null(duration.GetTag("error.type")); + Assert.True(duration.Value >= 0); + + var consumed = Assert.Single(collector.GetLongRecords(MetricNames.ConsumedMessages)); + Assert.Equal(1, consumed.Value); + Assert.Equal(queueName, consumed.GetTag("messaging.destination.name")); + Assert.Equal("success", consumed.GetTag("messaging.outcome")); + Assert.Null(consumed.GetTag("error.type")); + } + + [Fact] + public async Task ProcessAsync_HandlerSucceedsButRetryPublishThrows_RecordsConsumedError() + { + var queueName = $"q-error-{Guid.NewGuid():N}"; + using var collector = new MetricCollector("messaging.destination.name", queueName); + + // error path: handler returns Success=false; the retry-publish throws AlreadyClosedException + // which InboundMessageProcessor explicitly rethrows. ProcessAsync's exception escapes to + // ProcessWithMetricsAsync → metric outcome = "error". + static Task Handler( + ReadOnlyMemory _, string __, IDictionary ___, CancellationToken ____) + => Task.FromResult(new ConsumeEventResult { Success = false, Exception = new InvalidOperationException("handler failed") }); + + var (host, _, _) = await BuildHostAsync(Handler, queueName: queueName, retryPublishThrows: true); + await using (host) + { + await host.RaiseDeliveryForTests(MakeArgs(deliveryTag: 2)); + } + + var durationRecords = collector.GetDoubleRecords(MetricNames.ProcessDuration); + var duration = Assert.Single(durationRecords); + Assert.Equal("rabbitmq", duration.GetTag("messaging.system")); + Assert.Equal("process", duration.GetTag("messaging.operation.type")); + Assert.Equal("process", duration.GetTag("messaging.operation.name")); + Assert.Null(duration.GetTag("messaging.operation")); + Assert.Equal(queueName, duration.GetTag("messaging.destination.name")); + // error.type populated from ExceptionTypeMapper for the rethrown AlreadyClosedException. + Assert.NotNull(duration.GetTag("error.type")); + + var consumedRecords = collector.GetLongRecords(MetricNames.ConsumedMessages); + var consumed = Assert.Single(consumedRecords); + Assert.Equal(1, consumed.Value); + Assert.Equal("error", consumed.GetTag("messaging.outcome")); + Assert.NotNull(consumed.GetTag("error.type")); + } + + [Fact] + public async Task ProcessAsync_ShutdownTimedOut_RecordsConsumedRetry() + { + var queueName = $"q-retry-{Guid.NewGuid():N}"; + using var collector = new MetricCollector("messaging.destination.name", queueName); + + // retry path: handler returns Success=false; the host's shutdown-timed-out flag is set + // before processing starts, so ProcessAsync's early-return on the failure branch returns + // false (processed=false, no exception). Outcome = "retry". + static Task Handler( + ReadOnlyMemory _, string __, IDictionary ___, CancellationToken ____) + => Task.FromResult(new ConsumeEventResult { Success = false, Exception = new InvalidOperationException("handler failed") }); + + var (host, _, _) = await BuildHostAsync(Handler, queueName: queueName); + + // Force the shutdown-timed-out flag to true so the ProcessAsync failure branch returns false + // BEFORE attempting the retry publish — that's the documented "retry"/redelivery condition. + var field = typeof(RabbitMqConsumerHost).GetField( + "_shutdownTimedOut", + System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic); + field!.SetValue(host, 1); + + await using (host) + { + await host.RaiseDeliveryForTests(MakeArgs(deliveryTag: 3)); + } + + var duration = Assert.Single(collector.GetDoubleRecords(MetricNames.ProcessDuration)); + Assert.Equal(queueName, duration.GetTag("messaging.destination.name")); + Assert.Null(duration.GetTag("error.type")); + + var consumed = Assert.Single(collector.GetLongRecords(MetricNames.ConsumedMessages)); + Assert.Equal(1, consumed.Value); + Assert.Equal("retry", consumed.GetTag("messaging.outcome")); + Assert.Null(consumed.GetTag("error.type")); + } + + [Fact] + public async Task OnMessageReceived_TogglesInFlightUpDownCounter() + { + // Drives a successful dispatch through RabbitMqConsumerHost.EventAsync so the + // admission-site +1 and the finally-site -1 both fire. Net delta must be zero — + // an unmatched +1 would surface as a steadily-climbing in-flight gauge. + var queueName = $"q-inflight-{Guid.NewGuid():N}"; + using var collector = new MetricCollector("messaging.destination.name", queueName); + + static Task Handler( + ReadOnlyMemory _, string __, IDictionary ___, CancellationToken ____) + => Task.FromResult(new ConsumeEventResult { Success = true }); + + var (host, _, _) = await BuildHostAsync(Handler, queueName: queueName); + await using (host) + { + await host.RaiseDeliveryForTests(MakeArgs(deliveryTag: 4)); + } + + var deltas = collector.GetLongRecords(MetricNames.InFlightMessages); + Assert.Equal(2, deltas.Count); + Assert.Equal(1, deltas[0].Value); // +1 at admission + Assert.Equal(-1, deltas[1].Value); // -1 in the finally + Assert.Equal(0, deltas.Sum(r => r.Value)); // net-zero invariant + Assert.All(deltas, r => + { + Assert.Equal("rabbitmq", r.GetTag("messaging.system")); + Assert.Equal(queueName, r.GetTag("messaging.destination.name")); + }); + } + + // ── Harness ─────────────────────────────────────────────────────────────── + // Mirrors RabbitMqConsumerHostInflightCounterTests.BuildHostAsync; parameterised + // to optionally raise AlreadyClosedException from the publish channel so the + // retry-publish error rethrow is exercised. + private static async Task<( + RabbitMqConsumerHost Host, + Mock ConsumerChannel, + Mock PublishChannel)> BuildHostAsync( + ConsumerEventHandler handler, + string queueName, + bool retryPublishThrows = false) + { + var consumerChannel = new Mock(MockBehavior.Strict); + consumerChannel.Setup(c => c.IsOpen).Returns(true); + consumerChannel.Setup(c => c.BasicQosAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + consumerChannel.Setup(c => c.BasicConsumeAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny(), + It.IsAny?>(), + It.IsAny(), It.IsAny())) + .ReturnsAsync("tag"); + consumerChannel.Setup(c => c.BasicAckAsync( + It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(ValueTask.CompletedTask); + consumerChannel.Setup(c => c.BasicNackAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(ValueTask.CompletedTask); + consumerChannel.Setup(c => c.BasicCancelAsync( + It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + consumerChannel.Setup(c => c.CloseAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + consumerChannel.Setup(c => c.DisposeAsync()).Returns(ValueTask.CompletedTask); + consumerChannel.SetupAdd(c => c.ChannelShutdownAsync += It.IsAny>()); + consumerChannel.SetupRemove(c => c.ChannelShutdownAsync -= It.IsAny>()); + + var publishChannel = new Mock(MockBehavior.Loose); + if (retryPublishThrows) + { + // AlreadyClosedException is on InboundMessageProcessor's rethrow list — it'll escape + // ProcessAsync and surface as outcome=error in the metric scope. + publishChannel + .Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .ThrowsAsync(new global::RabbitMQ.Client.Exceptions.AlreadyClosedException( + new ShutdownEventArgs(ShutdownInitiator.Application, 0, "test"))); + } + else + { + publishChannel + .Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns(ValueTask.CompletedTask); + } + publishChannel.Setup(c => c.DisposeAsync()).Returns(ValueTask.CompletedTask); + + var conn = new Mock(); + conn.Setup(c => c.CreateChannelAsync(It.IsAny())) + .ReturnsAsync(consumerChannel.Object); + conn.Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(publishChannel.Object); + conn.SetupGet(c => c.UnderlyingConnection).Returns((IConnection?)null); + + var transport = new Mock(); + transport.SetupGet(t => t.MaxRetries).Returns(3); + transport.SetupGet(t => t.PrefetchCount).Returns((ushort)10); + transport.SetupProperty(t => t.GracefulShutdownTimeoutMilliseconds, 5000); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary()); + + var queue = new Mock(); + queue.SetupGet(q => q.QueueName).Returns(queueName); + queue.SetupGet(q => q.ErrorQueueName).Returns("err"); + queue.SetupGet(q => q.AuditQueueName).Returns("audit"); + queue.SetupGet(q => q.DisableErrors).Returns(false); + queue.SetupGet(q => q.AuditingEnabled).Returns(false); + + var bus = new Mock(); + bus.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + bus.SetupGet(b => b.DeadLetterUnhandledMessages).Returns(false); + + var retry = new MessageRetryHandler(3, "err", queueName, NullLogger.Instance); + var audit = new MessageAuditPublisher(queue.Object); + + var host = new RabbitMqConsumerHost( + conn.Object, transport.Object, queue.Object, bus.Object, + retry, new RabbitMqAdmissionGate(queueName), audit, NullLogger.Instance); + + await host.StartConsumingAsync(handler, queueName).ConfigureAwait(false); + + return (host, consumerChannel, publishChannel); + } + + private static BasicDeliverEventArgs MakeArgs(ulong deliveryTag) + => new( + consumerTag: "ct", + deliveryTag: deliveryTag, + redelivered: false, + exchange: "", + routingKey: "q", + properties: new BasicProperties + { + Headers = new Dictionary(StringComparer.Ordinal) + { + [HeaderKeys.FullTypeName] = "Foo.Bar", + }, + }, + body: new byte[] { 1 }); +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ConsumerStartupFailureRecoveryTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ConsumerStartupFailureRecoveryTests.cs new file mode 100644 index 000000000..5b304a441 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ConsumerStartupFailureRecoveryTests.cs @@ -0,0 +1,179 @@ +using System.Reflection; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public sealed class ConsumerStartupFailureRecoveryTests +{ + [Fact] + public async Task StartConsumingAsync_FailureMidStartup_ResetsStartedFlagAndAllowsRetry() + { + // Stage a Consumer whose first StartConsumingAsync fails at topology declaration. + // Without the fix, _started stays at 1 and the second StartConsumingAsync throws + // "already consuming" — even though nothing is consuming. With the fix, _started + // is reset on failure, so the second StartConsumingAsync proceeds. + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary()); + transport.SetupGet(t => t.MaxRetries).Returns(0); + transport.SetupGet(t => t.GracefulShutdownTimeoutMilliseconds).Returns(1000); + transport.SetupGet(t => t.RetryDelay).Returns(0); + + var queueConfig = new Mock(); + queueConfig.SetupGet(q => q.QueueName).Returns("startup-failure-q"); + queueConfig.SetupGet(q => q.ErrorQueueName).Returns("startup-failure-q.errors"); + queueConfig.SetupGet(q => q.AuditingEnabled).Returns(false); + queueConfig.SetupGet(q => q.PurgeQueueOnStartup).Returns(false); + + var busConfig = new Mock(); + busConfig.SetupGet(b => b.ConsumerCount).Returns(1); + + var attempt = 0; + var failingConnection = new Mock(); + failingConnection + .Setup(c => c.CreateChannelAsync(It.IsAny())) + .Returns(() => + { + attempt++; + var channel = new Mock(); + channel.SetupGet(c => c.IsOpen).Returns(true); + channel.Setup(c => c.CloseAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + if (attempt == 1) + { + // First attempt: fail at topology declaration so _started is set but nothing runs. + channel.Setup(c => c.ExchangeDeclareAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny>(), It.IsAny(), It.IsAny(), + It.IsAny())) + .ThrowsAsync(new InvalidOperationException("simulated topology failure")); + } + else + { + // Second attempt: stub everything so StartConsumingAsync completes end-to-end. + // This proves _started was reset on the first failure. + channel.Setup(c => c.ExchangeDeclareAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny>(), It.IsAny(), It.IsAny(), + It.IsAny())) + .Returns(Task.CompletedTask); + channel.Setup(c => c.QueueDeclareAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny>(), It.IsAny(), It.IsAny(), + It.IsAny())) + .ReturnsAsync(new QueueDeclareOk("startup-failure-q", 0, 0)); + channel.Setup(c => c.QueueBindAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny>(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + channel.Setup(c => c.BasicQosAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + channel.Setup(c => c.BasicConsumeAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny(), It.IsAny?>(), + It.IsAny(), It.IsAny())) + .ReturnsAsync("test-tag"); + } + return Task.FromResult(channel.Object); + }); + // The host's PrepareAsync calls CreateChannelAsync(CreateChannelOptions?, CT) for the + // publish channel; route that to the same per-attempt logic. + failingConnection + .Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .Returns(() => failingConnection.Object.CreateChannelAsync(default)); + failingConnection.SetupGet(c => c.UnderlyingConnection).Returns((global::RabbitMQ.Client.IConnection?)null); + + var consumer = new Consumer( + transport.Object, queueConfig.Object, busConfig.Object, + NullLogger.Instance, failingConnection.Object); + + // First attempt: topology declare throws. _started should reset on the way out. + await Assert.ThrowsAnyAsync(() => + consumer.StartConsumingAsync("startup-failure-q", ["TestMessage"], (_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }))); + + // Second attempt: now the topology succeeds. If _started had been left set after + // the first failure, this call would have thrown "already consuming". + await consumer.StartConsumingAsync("startup-failure-q", ["TestMessage"], (_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true })); + + await consumer.DisposeAsync(); + } + + [Fact] + public async Task StartConsumingAsync_FailureWithOwnedConnection_DisposesOwnedConnectionAndResetsState() + { + // When the consumer is constructed without a connection, StartConsumingAsync allocates + // one and sets _ownsConnection=true. If startup then fails, the catch block must dispose + // the owned connection too — leaving the caller in the same state as construction so + // they can retry without leaking the connection. + // + // The Connection class is constructed lazily (no real network call until CreateChannelAsync), + // so we pre-inject a fake IServiceConnectConnection via reflection: _ownsConnection=true and + // _connection pointing at a mock that fails CreateChannelAsync and records whether DisposeAsync + // was called. This avoids real network timeouts while still exercising the cleanup path. + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("nonexistent-host-for-test"); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary()); + transport.SetupGet(t => t.MaxRetries).Returns(0); + transport.SetupGet(t => t.GracefulShutdownTimeoutMilliseconds).Returns(1000); + transport.SetupGet(t => t.RetryDelay).Returns(0); + + var queueConfig = new Mock(); + queueConfig.SetupGet(q => q.QueueName).Returns("startup-failure-q"); + queueConfig.SetupGet(q => q.ErrorQueueName).Returns("startup-failure-q.errors"); + queueConfig.SetupGet(q => q.AuditingEnabled).Returns(false); + queueConfig.SetupGet(q => q.PurgeQueueOnStartup).Returns(false); + + var busConfig = new Mock(); + busConfig.SetupGet(b => b.ConsumerCount).Returns(1); + + // Construct the consumer with no connection so _ownsConnection=true is set in the ctor. + var consumer = new Consumer( + transport.Object, queueConfig.Object, busConfig.Object, + NullLogger.Instance, connection: null); + + // Build a fake IServiceConnectConnection whose CreateChannelAsync always throws. + // We track whether DisposeAsync is called via a flag. + var connectionDisposed = false; + var fakeConnection = new Mock(); + fakeConnection + .Setup(c => c.CreateChannelAsync(It.IsAny())) + .ThrowsAsync(new InvalidOperationException("simulated connection failure")); + fakeConnection + .Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ThrowsAsync(new InvalidOperationException("simulated connection failure")); + fakeConnection + .Setup(c => c.DisposeAsync()) + .Returns(() => + { + connectionDisposed = true; + return ValueTask.CompletedTask; + }); + + // Pre-inject the fake connection via reflection so the consumer treats it as + // the owned connection it "created" during a previous partial start. + var connectionField = typeof(Consumer).GetField( + "_connection", BindingFlags.Instance | BindingFlags.NonPublic); + var ownsField = typeof(Consumer).GetField( + "_ownsConnection", BindingFlags.Instance | BindingFlags.NonPublic); + + connectionField!.SetValue(consumer, fakeConnection.Object); + ownsField!.SetValue(consumer, true); + + // StartConsumingAsync must fail (connection throws on CreateChannelAsync). + await Assert.ThrowsAnyAsync(() => + consumer.StartConsumingAsync("startup-failure-q", ["TestMessage"], (_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }))); + + // The catch block must have disposed the owned connection and cleared the fields. + Assert.True(connectionDisposed, "_connection.DisposeAsync was not called during failure recovery"); + Assert.Null(connectionField.GetValue(consumer)); + Assert.False((bool)ownsField.GetValue(consumer)!); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ConsumerTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ConsumerTests.cs new file mode 100644 index 000000000..93c995042 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ConsumerTests.cs @@ -0,0 +1,316 @@ +using System.Collections.Concurrent; +using System.Reflection; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using RabbitMQ.Client.Exceptions; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public class ConsumerTests +{ + private static Mock MakeTransportCfg() + { + var cfg = new Mock(); + cfg.SetupGet(c => c.MaxRetries).Returns(3); + cfg.SetupGet(c => c.RetryDelay).Returns(1000); + cfg.SetupGet(c => c.ClientSettings).Returns(new Dictionary()); + return cfg; + } + + private static Mock MakeQueueCfg() + { + var cfg = new Mock(); + cfg.SetupGet(c => c.QueueName).Returns("q"); + cfg.SetupGet(c => c.ErrorQueueName).Returns("err"); + cfg.SetupGet(c => c.AuditQueueName).Returns("audit"); + cfg.SetupGet(c => c.PurgeQueueOnStartup).Returns(false); + cfg.SetupGet(c => c.AuditingEnabled).Returns(false); + return cfg; + } + + private static Mock MakeBusCfg() + { + var cfg = new Mock(); + cfg.SetupGet(c => c.ConsumerCount).Returns(1); + return cfg; + } + + [Fact] + public async Task StartConsumingAsync_WhenInitialTopologySetupFails_RethrowsAndDisposesSetupChannel() + { + var shutdownArgs = new ShutdownEventArgs(ShutdownInitiator.Library, 406, "PRECONDITION_FAILED", cause: null, cancellationToken: CancellationToken.None); + var channel = new Mock(); + channel.Setup(c => c.IsOpen).Returns(true); + channel.Setup(c => c.ExchangeDeclareAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny?>(), + It.IsAny(), It.IsAny(), It.IsAny())) + .ThrowsAsync(new OperationInterruptedException(shutdownArgs)); + channel.Setup(c => c.CloseAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var connection = new Mock(); + connection.Setup(c => c.CreateChannelAsync()).ReturnsAsync(channel.Object); + + var consumer = new Consumer( + MakeTransportCfg().Object, + MakeQueueCfg().Object, + MakeBusCfg().Object, + NullLogger.Instance, + connection.Object); + + await Assert.ThrowsAsync(() => + consumer.StartConsumingAsync("q", ["MessageType"], (_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }))); + + channel.Verify(c => c.CloseAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny()), Times.Once); + channel.Verify(c => c.Dispose(), Times.Once); + } + + [Fact] + public async Task StartConsumingAsync_WhenInitialQueueDeclarationFails_RethrowsAndDisposesSetupChannel() + { + var shutdownArgs = new ShutdownEventArgs(ShutdownInitiator.Library, 406, "PRECONDITION_FAILED", cause: null, cancellationToken: CancellationToken.None); + var channel = new Mock(); + channel.Setup(c => c.IsOpen).Returns(true); + channel.Setup(c => c.ExchangeDeclareAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny?>(), + It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + channel.Setup(c => c.QueueDeclareAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny?>(), + It.IsAny(), It.IsAny(), It.IsAny())) + .ThrowsAsync(new OperationInterruptedException(shutdownArgs)); + channel.Setup(c => c.CloseAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var connection = new Mock(); + connection.Setup(c => c.CreateChannelAsync()).ReturnsAsync(channel.Object); + + var consumer = new Consumer( + MakeTransportCfg().Object, + MakeQueueCfg().Object, + MakeBusCfg().Object, + NullLogger.Instance, + connection.Object); + + await Assert.ThrowsAsync(() => + consumer.StartConsumingAsync("q", ["MessageType"], (_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }))); + + channel.Verify(c => c.CloseAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny()), Times.Once); + channel.Verify(c => c.Dispose(), Times.Once); + } + + [Fact] + public async Task StartConsumingAsync_WhenHostStartupFails_EagerlyDisposesPartialHostsAndClearsClients() + { + var shutdownArgs = new ShutdownEventArgs(ShutdownInitiator.Library, 406, "PRECONDITION_FAILED", cause: null, cancellationToken: CancellationToken.None); + + var setupChannel = new Mock(); + setupChannel.Setup(c => c.IsOpen).Returns(true); + setupChannel.Setup(c => c.ExchangeDeclareAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny?>(), + It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + setupChannel.Setup(c => c.QueueDeclareAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny?>(), + It.IsAny(), It.IsAny(), It.IsAny())) + .ReturnsAsync(new QueueDeclareOk("q", 0, 0)); + setupChannel.Setup(c => c.QueueBindAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny?>(), + It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + setupChannel.Setup(c => c.CloseAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var connection = new Mock(); + // First call — Consumer's setup channel — succeeds. Second call — host's + // consumer channel inside RabbitMqConsumerHost.PrepareAsync — throws. + // The catch block must eagerly dispose any partially-built host and drain + // _clients so the caller can retry without calling DisposeAsync first. + connection.SetupSequence(c => c.CreateChannelAsync(It.IsAny())) + .ReturnsAsync(setupChannel.Object) + .ThrowsAsync(new OperationInterruptedException(shutdownArgs)); + + var transportCfg = MakeTransportCfg(); + transportCfg.SetupGet(c => c.MaxRetries).Returns(0); + var queueCfg = MakeQueueCfg(); + + var consumer = new Consumer( + transportCfg.Object, + queueCfg.Object, + MakeBusCfg().Object, + NullLogger.Instance, + connection.Object); + + await Assert.ThrowsAsync(() => + consumer.StartConsumingAsync("q", ["MessageType"], (_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }))); + + // The catch block disposes partial hosts eagerly and drains _clients, so + // _clients is empty after a failure — no DisposeAsync call required to recover. + var clientsField = typeof(Consumer).GetField("_clients", BindingFlags.NonPublic | BindingFlags.Instance); + Assert.NotNull(clientsField); + var clients = (System.Collections.ICollection)clientsField!.GetValue(consumer)!; + Assert.Empty(clients); + + // _started must be reset to 0 so a subsequent StartConsumingAsync can retry. + var startedField = typeof(Consumer).GetField("_started", BindingFlags.NonPublic | BindingFlags.Instance); + Assert.NotNull(startedField); + Assert.Equal(0, (int)startedField!.GetValue(consumer)!); + } + + [Fact] + public async Task DisposeAsync_DoesNotDisposeCallerSuppliedConnection() + { + var connection = new Mock(MockBehavior.Strict); + // Strict mock: any call other than what we set up fails the test. DisposeAsync + // must not be invoked on a caller-owned connection. + + var consumer = new Consumer( + MakeTransportCfg().Object, + MakeQueueCfg().Object, + MakeBusCfg().Object, + NullLogger.Instance, + connection.Object); + + await consumer.DisposeAsync(); + + connection.Verify(c => c.DisposeAsync(), Times.Never); + } + + // ----------------------------------------------------------------------- + // Consumer.DisposeAsync exception resilience + // ----------------------------------------------------------------------- + + [Fact] + public async Task DisposeAsync_WhenMiddleHostThrows_StillDisposesAllOthers() + { + // Arrange: inject three IAsyncDisposable stubs into _clients via reflection. + // hostB throws TimeoutException; hostA and hostC must still be disposed. + // ConcurrentBag iteration order is unspecified, so asserting all three were + // invoked proves "continues past failure" rather than "happened to dispose + // others first". + var hostA = new Mock(); + hostA.Setup(h => h.DisposeAsync()).Returns(ValueTask.CompletedTask); + var hostB = new Mock(); + hostB.Setup(h => h.DisposeAsync()).Throws(new TimeoutException("AMQP 0-9-1 channel closed")); + var hostC = new Mock(); + hostC.Setup(h => h.DisposeAsync()).Returns(ValueTask.CompletedTask); + + var connection = new Mock(MockBehavior.Strict); + + var consumer = new Consumer( + MakeTransportCfg().Object, + MakeQueueCfg().Object, + MakeBusCfg().Object, + NullLogger.Instance, + connection.Object); + + // Inject via reflection — requires _clients to be ConcurrentBag + var clientsField = typeof(Consumer).GetField("_clients", BindingFlags.NonPublic | BindingFlags.Instance); + Assert.NotNull(clientsField); + var clients = (ConcurrentBag)clientsField!.GetValue(consumer)!; + clients.Add(hostA.Object); + clients.Add(hostB.Object); + clients.Add(hostC.Object); + + await consumer.DisposeAsync(); // must not throw + + hostA.Verify(h => h.DisposeAsync(), Times.Once); + hostB.Verify(h => h.DisposeAsync(), Times.Once); // the failing one was still reached + hostC.Verify(h => h.DisposeAsync(), Times.Once); // not leaked past the failure + } + + // ----------------------------------------------------------------------- + // Consumer.StartConsumingAsync idempotency + // ----------------------------------------------------------------------- + + [Fact] + public async Task StartConsumingAsync_CalledTwice_ThrowsInvalidOperationException() + { + // A fully-configured Consumer that can complete the first StartConsumingAsync + // call needs topology + a host channel. We use an approach where the second + // call throws before any channel is created: the _started gate fires first. + // So for this test we just need two calls; the first must succeed (or at least + // advance past the gate) and the second must throw. + // + // The simplest harness: set _started directly via reflection to simulate the + // already-consuming state, then confirm the second call throws. + var connection = new Mock(MockBehavior.Strict); + + var consumer = new Consumer( + MakeTransportCfg().Object, + MakeQueueCfg().Object, + MakeBusCfg().Object, + NullLogger.Instance, + connection.Object); + + // Simulate "already started" by setting _started = 1 directly. + var startedField = typeof(Consumer).GetField("_started", BindingFlags.NonPublic | BindingFlags.Instance); + Assert.NotNull(startedField); + startedField!.SetValue(consumer, 1); + + await Assert.ThrowsAsync(() => + consumer.StartConsumingAsync("q", ["MessageType"], + (_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }))); + } + + // ----------------------------------------------------------------------- + // Accept any IDictionary/IReadOnlyDictionary for queue Arguments + // ----------------------------------------------------------------------- + + [Fact] + public void Ctor_ArgumentsAsReadOnlyDictionary_DoesNotThrow() + { + // The ctor must accept any IDictionary/IReadOnlyDictionary shape for + // settings[Arguments]; a direct cast to Dictionary<,> would fail on + // ReadOnlyDictionary callers. + var inner = new Dictionary { ["x-message-ttl"] = 60_000 }; + var readOnly = new System.Collections.ObjectModel.ReadOnlyDictionary(inner); + + var cfg = new Mock(); + cfg.SetupGet(c => c.MaxRetries).Returns(3); + cfg.SetupGet(c => c.RetryDelay).Returns(1000); + cfg.SetupGet(c => c.ClientSettings).Returns(new Dictionary + { + [RabbitMQSettingKeys.Arguments] = readOnly, + }); + + var ex = Record.Exception(() => new Consumer( + cfg.Object, + new Mock().Object, + new Mock().Object, + NullLogger.Instance)); + Assert.Null(ex); + } + + [Fact] + public void Ctor_ArgumentsAsNonDictionaryValue_ThrowsInvalidOperationException() + { + // Non-dictionary values must produce a clear InvalidOperationException rather + // than an opaque InvalidCastException. + var cfg = new Mock(); + cfg.SetupGet(c => c.MaxRetries).Returns(3); + cfg.SetupGet(c => c.RetryDelay).Returns(1000); + cfg.SetupGet(c => c.ClientSettings).Returns(new Dictionary + { + [RabbitMQSettingKeys.Arguments] = "not-a-dictionary", + }); + + Assert.Throws(() => new Consumer( + cfg.Object, + new Mock().Object, + new Mock().Object, + NullLogger.Instance)); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/HeaderHelpersTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/HeaderHelpersTests.cs new file mode 100644 index 000000000..c220b5805 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/HeaderHelpersTests.cs @@ -0,0 +1,77 @@ +using ServiceConnect.Client.RabbitMQ; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public class HeaderHelpersTests +{ + [Fact] + public void SetHeader_WritesValue_WhenNonNull() + { + var headers = new Dictionary(); + + HeaderHelpers.SetHeader(headers, "X", "value"); + + Assert.Equal("value", headers["X"]); + } + + [Fact] + public void SetHeader_OverwritesExistingKey_WhenNonNull() + { + var headers = new Dictionary { ["X"] = "old" }; + + HeaderHelpers.SetHeader(headers, "X", "new"); + + Assert.Equal("new", headers["X"]); + } + + [Fact] + public void SetHeader_RemovesExistingKey_WhenNull() + { + var headers = new Dictionary { ["X"] = "value" }; + + HeaderHelpers.SetHeader(headers, "X", null); + + Assert.False(headers.ContainsKey("X")); + } + + [Fact] + public void SetHeader_WithNullOnMissingKey_NoOp() + { + var headers = new Dictionary(); + + HeaderHelpers.SetHeader(headers, "X", null); + + Assert.False(headers.ContainsKey("X")); + } + + [Fact] + public void ToNullableHeaders_PreservesAllEntriesAsNullableValues() + { + var source = new Dictionary + { + ["A"] = "alpha", + ["B"] = 42, + }; + + var result = HeaderHelpers.ToNullableHeaders(source); + + Assert.Equal(2, result.Count); + Assert.Equal("alpha", result["A"]); + Assert.Equal(42, result["B"]); + } + + [Fact] + public void GetErrorMessage_WalksInnerExceptionChain() + { + var inner = new InvalidOperationException("inner-msg"); + var middle = new ApplicationException("middle-msg", inner); + var outer = new Exception("outer-msg", middle); + + var text = HeaderHelpers.GetErrorMessage(outer); + + Assert.Contains("outer-msg", text); + Assert.Contains("middle-msg", text); + Assert.Contains("inner-msg", text); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/InboundHeaderDecodeCachingTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/InboundHeaderDecodeCachingTests.cs new file mode 100644 index 000000000..c2f5ebd29 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/InboundHeaderDecodeCachingTests.cs @@ -0,0 +1,85 @@ +using System.Text; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Pins the inbound-copy invariant: byte[] header values are eagerly decoded to string +/// so downstream HeaderDecoder.Decode calls hit the string fast-path instead of re-running +/// Encoding.UTF8.GetString on every read. +/// +public sealed class InboundHeaderDecodeCachingTests +{ + [Fact] + public void CopyInboundHeaders_ReplacesByteArrayValuesWithDecodedStrings() + { + var args = BuildDeliverArgs(new Dictionary + { + ["X-Trace"] = Encoding.UTF8.GetBytes("abc-123"), + ["X-Count"] = 42, + ["X-Empty"] = null, + ["X-Plain"] = "already-string", + }); + + var copied = RabbitMqConsumerHost.CopyInboundHeadersForTests(args); + + Assert.IsType(copied["X-Trace"]); + Assert.Equal("abc-123", copied["X-Trace"]); + Assert.Equal(42, copied["X-Count"]); + Assert.False(copied.ContainsKey("X-Empty")); + Assert.Equal("already-string", copied["X-Plain"]); + } + + [Fact] + public void HeaderDecoder_Decode_ReturnsCachedStringWithoutReDecoding_AfterEagerDecode() + { + var args = BuildDeliverArgs(new Dictionary + { + ["X-Trace"] = Encoding.UTF8.GetBytes("identity-test"), + }); + var copied = RabbitMqConsumerHost.CopyInboundHeadersForTests(args); + + var first = HeaderDecoder.Decode(copied["X-Trace"]); + var second = HeaderDecoder.Decode(copied["X-Trace"]); + + Assert.Equal("identity-test", first); + Assert.Same(first, second); + Assert.Same(copied["X-Trace"], first); + } + + [Fact] + public void InboundMessageProcessorCopy_ReplacesByteArrayValuesWithDecodedStrings() + { + var args = BuildDeliverArgs(new Dictionary + { + [HeaderKeys.TypeName] = Encoding.UTF8.GetBytes("My.Type.Name"), + [HeaderKeys.MessageId] = Encoding.UTF8.GetBytes("msg-42"), + ["X-Typed"] = true, + }); + + var copied = InboundMessageProcessor.CopyInboundHeadersForTests(args); + + Assert.IsType(copied[HeaderKeys.TypeName]); + Assert.Equal("My.Type.Name", copied[HeaderKeys.TypeName]); + Assert.IsType(copied[HeaderKeys.MessageId]); + Assert.Equal("msg-42", copied[HeaderKeys.MessageId]); + Assert.Equal(true, copied["X-Typed"]); + } + + private static BasicDeliverEventArgs BuildDeliverArgs(IDictionary headers) + { + var props = new BasicProperties { Headers = headers }; + return new BasicDeliverEventArgs( + consumerTag: "test-consumer", + deliveryTag: 1, + redelivered: false, + exchange: string.Empty, + routingKey: "test-queue", + properties: props, + body: ReadOnlyMemory.Empty); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/InboundMessageProcessorAuditCancellationTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/InboundMessageProcessorAuditCancellationTests.cs new file mode 100644 index 000000000..eca69788c --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/InboundMessageProcessorAuditCancellationTests.cs @@ -0,0 +1,101 @@ +using Microsoft.Extensions.Logging; +using Moq; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public sealed class InboundMessageProcessorAuditCancellationTests +{ + private static BasicDeliverEventArgs MakeArgs() + { + var props = new BasicProperties(); + return new BasicDeliverEventArgs("tag", 1, false, "", "q", props, new byte[] { 1, 2, 3 }); + } + + [Fact] + public async Task ProcessAsync_AuditPublishOceDuringShutdown_SwallowsOceAndLogsAtDebug() + { + using var shutdownCts = new CancellationTokenSource(); + shutdownCts.Cancel(); // shutdown grace expired + + // Capture log calls via a simple list — ILogger (non-generic) can't be created as + // NullLogger, so we use a plain Mock and capture via callback. + var logEntries = new List<(LogLevel Level, string Message)>(); + var loggerMock = new Mock(); + loggerMock.Setup(l => l.IsEnabled(It.IsAny())).Returns(true); + loggerMock + .Setup(l => l.Log( + It.IsAny(), + It.IsAny(), + It.IsAny(), + It.IsAny(), + It.IsAny>())) + .Callback(new InvocationAction(inv => + { + var level = (LogLevel)inv.Arguments[0]; + var formatter = (Delegate)inv.Arguments[4]; + var msg = (string)formatter.DynamicInvoke(inv.Arguments[2], inv.Arguments[3])!; + logEntries.Add((level, msg)); + })); + + // Channel: BasicPublishAsync throws OCE carrying the shutdown token, simulating + // a publish that fires after the shutdown grace window expires. + var channelMock = new Mock(); + channelMock + .Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .ThrowsAsync(new OperationCanceledException(shutdownCts.Token)); + + // MessageAuditPublisher backed by the throwing channel, with auditing enabled. + var queueConfig = new Mock(); + queueConfig.SetupGet(q => q.AuditingEnabled).Returns(true); + queueConfig.SetupGet(q => q.AuditQueueName).Returns("audit"); + queueConfig.SetupGet(q => q.QueueName).Returns("q"); + var auditPublisher = new MessageAuditPublisher(queueConfig.Object); + + // Minimal retry handler — the success path skips it. + var retryHandler = new MessageRetryHandler( + maxRetries: 0, + errorExchange: "err", + consumerQueueName: "q", + logger: loggerMock.Object); + + // Consumer event handler: returns Success=true, NotHandled=false so the audit + // branch in ProcessAsync fires. + static Task HandleAsync(ReadOnlyMemory _, string __, IDictionary ___, CancellationToken ____) => + Task.FromResult(new ConsumeEventResult { Success = true, NotHandled = false }); + + var processor = new InboundMessageProcessor( + consumerEventHandler: (ConsumerEventHandler)HandleAsync, + retryHandler: retryHandler, + auditPublisher: auditPublisher, + queueConfiguration: queueConfig.Object, + timeProvider: TimeProvider.System, + logger: loggerMock.Object, + retryQueueName: "q.retries", + errorsDisabled: false, + deadLetterUnhandledMessages: false, + includeMachineNameInHeaders: false, + shutdownTimedOut: () => false, + shutdownPublishToken: () => shutdownCts.Token); + + // Corrected: the audit OCE is SWALLOWED — processor returns normally so the message is ack'd. + var processed = await processor.ProcessAsync(channelMock.Object, MakeArgs(), copiedHeaders: null, CancellationToken.None); + + // Returns true (acks the original message). + Assert.True(processed); + + // No Error logs — OCE during shutdown is expected, not an error. + Assert.DoesNotContain(logEntries, e => e.Level == LogLevel.Error); + // One Debug log mentioning the audit publish cancellation. + Assert.Contains(logEntries, + e => e.Level == LogLevel.Debug && e.Message.Contains("Audit publish cancelled by shutdown")); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/InboundMessageProcessorMetricsTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/InboundMessageProcessorMetricsTests.cs new file mode 100644 index 000000000..2e2adee9a --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/InboundMessageProcessorMetricsTests.cs @@ -0,0 +1,158 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Diagnostics; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.UnitTests.Diagnostics; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Asserts that the two ack-and-drop catch-blocks in emit +/// the correct ServiceConnect-extension counters with the spec'd tag subsets: +/// +/// messaging.serviceconnect.retry.drops — carries messaging.destination.name +/// (the original queue) and error.type. +/// messaging.serviceconnect.audit.drops — NO messaging.destination.name +/// tag (audit queue is global), only messaging.system + error.type. +/// +/// +public sealed class InboundMessageProcessorMetricsTests +{ + private static BasicDeliverEventArgs MakeArgs() => new( + consumerTag: "ct", + deliveryTag: 1, + redelivered: false, + exchange: "", + routingKey: "q", + properties: new BasicProperties(), + body: new byte[] { 1, 2, 3 }); + + [Fact] + public async Task ProcessAsync_OnRetryPublishFailure_IncrementsRetryDrops() + { + // Per-test unique queue name so the MetricCollector tag-filter isolates the emission + // from any other tests running in parallel that hit the same instrument. + var queueName = $"q-retrydrop-{Guid.NewGuid():N}"; + using var collector = new MetricCollector("messaging.destination.name", queueName); + + // Channel throws a non-transport, non-OCE exception on publish — that's the swallow-and-ack + // branch that emits RetryDrop. + var channelMock = new Mock(); + var poisonException = new InvalidOperationException("retry queue gone"); + channelMock + .Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .ThrowsAsync(poisonException); + + var queueConfig = new Mock(); + queueConfig.SetupGet(q => q.QueueName).Returns(queueName); + queueConfig.SetupGet(q => q.AuditingEnabled).Returns(false); + queueConfig.SetupGet(q => q.AuditQueueName).Returns("audit"); + + var auditPublisher = new MessageAuditPublisher(queueConfig.Object); + var retryHandler = new MessageRetryHandler(maxRetries: 3, errorExchange: "err", consumerQueueName: queueName, NullLogger.Instance); + + // Handler returns Success=false so the retry-publish branch fires. + static Task HandleAsync(ReadOnlyMemory _, string __, IDictionary ___, CancellationToken ____) => + Task.FromResult(new ConsumeEventResult { Success = false }); + + var processor = new InboundMessageProcessor( + consumerEventHandler: (ConsumerEventHandler)HandleAsync, + retryHandler: retryHandler, + auditPublisher: auditPublisher, + queueConfiguration: queueConfig.Object, + timeProvider: TimeProvider.System, + logger: NullLogger.Instance, + retryQueueName: queueName + ".Retries", + errorsDisabled: false, + deadLetterUnhandledMessages: false, + includeMachineNameInHeaders: false, + shutdownTimedOut: () => false, + shutdownPublishToken: () => CancellationToken.None); + + // The catch swallows the poison exception and returns true → message is acked. + var processed = await processor.ProcessAsync(channelMock.Object, MakeArgs(), copiedHeaders: null, CancellationToken.None); + Assert.True(processed); + + var record = Assert.Single(collector.GetLongRecords(MetricNames.RetryDrops)); + Assert.Equal(1, record.Value); + Assert.Equal("rabbitmq", record.GetTag("messaging.system")); + Assert.Equal(queueName, record.GetTag("messaging.destination.name")); + // ExceptionTypeMapper falls through to GetType().Name for non-allow-listed types. + Assert.Equal(nameof(InvalidOperationException), record.GetTag("error.type")); + } + + [Fact] + public async Task ProcessAsync_OnAuditPublishFailure_IncrementsAuditDrops() + { + // Audit drop has NO messaging.destination.name tag (audit queue is global) so + // MetricCollector cannot filter on that key. Instead we use a per-test custom + // exception type whose runtime GetType().Name is unique to this test, then + // filter the collector on error.type to isolate from any other test in flight. + var expectedErrorType = nameof(AuditDropProbeException); + using var collector = new MetricCollector("error.type", expectedErrorType); + + var channelMock = new Mock(); + channelMock + .Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .ThrowsAsync(new AuditDropProbeException()); + + var queueConfig = new Mock(); + queueConfig.SetupGet(q => q.QueueName).Returns("q-auditdrop"); + queueConfig.SetupGet(q => q.AuditingEnabled).Returns(true); + queueConfig.SetupGet(q => q.AuditQueueName).Returns("audit"); + + var auditPublisher = new MessageAuditPublisher(queueConfig.Object); + var retryHandler = new MessageRetryHandler(maxRetries: 0, errorExchange: "err", consumerQueueName: "q-auditdrop", NullLogger.Instance); + + // Handler returns Success=true, NotHandled=false → audit branch fires. + static Task HandleAsync(ReadOnlyMemory _, string __, IDictionary ___, CancellationToken ____) => + Task.FromResult(new ConsumeEventResult { Success = true, NotHandled = false }); + + var processor = new InboundMessageProcessor( + consumerEventHandler: (ConsumerEventHandler)HandleAsync, + retryHandler: retryHandler, + auditPublisher: auditPublisher, + queueConfiguration: queueConfig.Object, + timeProvider: TimeProvider.System, + logger: NullLogger.Instance, + retryQueueName: "q-auditdrop.Retries", + errorsDisabled: false, + deadLetterUnhandledMessages: false, + includeMachineNameInHeaders: false, + shutdownTimedOut: () => false, + shutdownPublishToken: () => CancellationToken.None); + + var processed = await processor.ProcessAsync(channelMock.Object, MakeArgs(), copiedHeaders: null, CancellationToken.None); + Assert.True(processed); + + var record = Assert.Single(collector.GetLongRecords(MetricNames.AuditDrops)); + Assert.Equal(1, record.Value); + Assert.Equal("rabbitmq", record.GetTag("messaging.system")); + Assert.Equal(expectedErrorType, record.GetTag("error.type")); + // Spec invariant: audit drop carries no destination-name tag (audit queue is global). + // Use ContainsKey rather than GetTag so the assertion fails for both "tag absent" AND + // "tag present with null value" — GetTag returns null for either case. + Assert.False(record.Tags.ContainsKey("messaging.destination.name")); + } + + // Custom exception type whose runtime GetType().Name is unique to this test file — + // any other test that emits an audit drop with a different exception type will not + // match the MetricCollector's error.type filter. +#pragma warning disable MA0048 // multiple types in one file — tightly-scoped test probe + private sealed class AuditDropProbeException : Exception + { + public AuditDropProbeException() : base("audit publish failed in metrics test") { } + } +#pragma warning restore MA0048 +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/InboundMessageProcessorNotHandledFallbackTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/InboundMessageProcessorNotHandledFallbackTests.cs new file mode 100644 index 000000000..1e996356c --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/InboundMessageProcessorNotHandledFallbackTests.cs @@ -0,0 +1,93 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public sealed class InboundMessageProcessorNotHandledFallbackTests +{ + [Fact] + public async Task ProcessAsync_NotHandled_FullTypeNameNullFallsBackToTypeName() + { + // Covers not-handled fallback type-name resolution. The production guard at + // InboundMessageProcessor.cs:169-172 (`|| typeNameRaw is null`) is defensive + // symmetry with the line-87 pattern. The internal `headers` dict is built from + // args.BasicProperties.Headers via a loop that filters out null-valued entries + // (lines 60-66 of InboundMessageProcessor), so a wire-headers `FullTypeName=null` + // never reaches the fallback site. This test exercises the resolved type name in + // the not-handled exception payload; the explicit `is null` guard protects any + // future path that bypasses the upstream null filter. + BasicProperties? capturedProps = null; + var channel = new Mock(); + channel + .Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), It.IsAny())) + .Callback, CancellationToken>( + (_, _, _, p, _, _) => capturedProps = p) + .Returns(ValueTask.CompletedTask); + + var queueConfig = new Mock(); + queueConfig.SetupGet(q => q.AuditingEnabled).Returns(false); + queueConfig.SetupGet(q => q.AuditQueueName).Returns("audit"); + queueConfig.SetupGet(q => q.QueueName).Returns("main-q"); + + var auditPublisher = new MessageAuditPublisher(queueConfig.Object); + var retryHandler = new MessageRetryHandler(maxRetries: 3, errorExchange: "error.exchange", consumerQueueName: "main-q", NullLogger.Instance); + + var processor = new InboundMessageProcessor( + consumerEventHandler: (_, _, _, _) => + Task.FromResult(new ConsumeEventResult { Success = true, NotHandled = true }), + retryHandler: retryHandler, + auditPublisher: auditPublisher, + queueConfiguration: queueConfig.Object, + timeProvider: TimeProvider.System, + logger: NullLogger.Instance, + retryQueueName: "main-q.Retries", + errorsDisabled: false, + deadLetterUnhandledMessages: true, + includeMachineNameInHeaders: false, + shutdownTimedOut: () => false, + shutdownPublishToken: () => CancellationToken.None); + + // FullTypeName key present in wire headers but value is null; TypeName carries + // the real type. The null-filtering loop drops FullTypeName from the internal + // headers dict, so TryGetValue misses it and the TypeName fallback is used. + // The explicit `|| typeNameRaw is null` guard ensures an explicit null entry + // (if ever present in the dict) also triggers the fallback. + var props = new BasicProperties + { + Headers = new Dictionary(StringComparer.Ordinal) + { + [HeaderKeys.FullTypeName] = null, + [HeaderKeys.TypeName] = "Foo.Bar", + }, + }; + + var args = new BasicDeliverEventArgs( + consumerTag: "ct", + deliveryTag: 1, + redelivered: false, + exchange: "", + routingKey: "main-q", + properties: props, + body: new byte[] { 1 }); + + await processor.ProcessAsync(channel.Object, args, copiedHeaders: null, CancellationToken.None); + + Assert.NotNull(capturedProps); + Assert.NotNull(capturedProps.Headers); + Assert.True(capturedProps.Headers.TryGetValue(HeaderKeys.Exception, out var exJson)); + Assert.NotNull(exJson); + var json = Assert.IsType(exJson); + // The exception message must include the resolved type name, not the "" + // sentinel that would appear if neither FullTypeName nor TypeName resolved. + Assert.Contains("Foo.Bar", json); + Assert.DoesNotContain("", json); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/InboundMessageProcessorNullHandlerTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/InboundMessageProcessorNullHandlerTests.cs new file mode 100644 index 000000000..1480e02f4 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/InboundMessageProcessorNullHandlerTests.cs @@ -0,0 +1,77 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public sealed class InboundMessageProcessorNullHandlerTests +{ + [Fact] + public async Task ProcessAsync_NullConsumerEventHandler_AttachesSyntheticInvalidOperationException() + { + // Capture the exception JSON published to the error exchange. With maxRetries=0 the very + // first failure routes immediately to the error exchange (no retry queue intermediate). + + BasicProperties? capturedProps = null; + var channel = new Mock(); + channel + .Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), It.IsAny())) + .Callback, CancellationToken>( + (_, _, _, p, _, _) => capturedProps = p) + .Returns(ValueTask.CompletedTask); + + var retryHandler = new MessageRetryHandler(maxRetries: 0, errorExchange: "error", consumerQueueName: "main-q", NullLogger.Instance); + var queueConfig = Mock.Of(q => q.QueueName == "main-q"); + var auditPublisher = new MessageAuditPublisher(queueConfig); + + var processor = new InboundMessageProcessor( + consumerEventHandler: null!, // the case under test + retryHandler: retryHandler, + auditPublisher: auditPublisher, + queueConfiguration: queueConfig, + timeProvider: TimeProvider.System, + logger: NullLogger.Instance, + retryQueueName: "main-q.Retries", + errorsDisabled: false, + deadLetterUnhandledMessages: false, + includeMachineNameInHeaders: false, + shutdownTimedOut: () => false, + shutdownPublishToken: () => CancellationToken.None); + + var args = new BasicDeliverEventArgs( + consumerTag: "ct", + deliveryTag: 1, + redelivered: false, + exchange: "", + routingKey: "main-q", + properties: new BasicProperties + { + Headers = new Dictionary(StringComparer.Ordinal) + { + [HeaderKeys.FullTypeName] = "Foo.Bar", + }, + }, + body: new byte[] { 1 }); + + await processor.ProcessAsync(channel.Object, args, copiedHeaders: null, CancellationToken.None); + + Assert.NotNull(capturedProps); + Assert.NotNull(capturedProps.Headers); + Assert.True(capturedProps.Headers.TryGetValue(HeaderKeys.Exception, out var exJson)); + Assert.NotNull(exJson); + Assert.IsType(exJson); + var json = (string)exJson; + // The Exception header on the error-exchange publish must contain a synthesised + // InvalidOperationException — without one, ex would be null and the header would + // never be written. + Assert.Contains("InvalidOperationException", json); + Assert.Contains("Consumer event handler not set", json); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/InboundMessageProcessorTransportTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/InboundMessageProcessorTransportTests.cs new file mode 100644 index 000000000..93bc725a7 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/InboundMessageProcessorTransportTests.cs @@ -0,0 +1,357 @@ +using Microsoft.Extensions.Logging; +using Moq; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using RabbitMQ.Client.Exceptions; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public sealed class InboundMessageProcessorTransportTests +{ + private static BasicDeliverEventArgs MakeArgs() + { + var props = new BasicProperties(); + return new BasicDeliverEventArgs("tag", 1, false, "", "q", props, new byte[] { 1, 2, 3 }); + } + + /// + /// Builds a processor whose handler signals a failure (Success=false) so the + /// retry-publish branch fires, and configures the mock IChannel so that + /// BasicPublishAsync throws the given exception. + /// + private static InboundMessageProcessor MakeRetryPublishProcessor( + Mock channelMock, + Exception toThrow, + Mock loggerMock) + { + var queueConfig = new Mock(); + queueConfig.SetupGet(q => q.AuditingEnabled).Returns(false); + queueConfig.SetupGet(q => q.AuditQueueName).Returns("audit"); + queueConfig.SetupGet(q => q.QueueName).Returns("q"); + + channelMock + .Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .ThrowsAsync(toThrow); + + var auditPublisher = new MessageAuditPublisher(queueConfig.Object); + + var retryHandler = new MessageRetryHandler( + maxRetries: 3, + errorExchange: "err", + consumerQueueName: "q", + logger: loggerMock.Object); + + // Handler returns Success=false to trigger the retry-publish branch. + static Task HandleAsync(ReadOnlyMemory _, string __, IDictionary ___, CancellationToken ____) => + Task.FromResult(new ConsumeEventResult { Success = false }); + + using var shutdownCts = new CancellationTokenSource(); // NOT cancelled — shutdown hasn't fired. + + return new InboundMessageProcessor( + consumerEventHandler: (ConsumerEventHandler)HandleAsync, + retryHandler: retryHandler, + auditPublisher: auditPublisher, + queueConfiguration: queueConfig.Object, + timeProvider: TimeProvider.System, + logger: loggerMock.Object, + retryQueueName: "q.retries", + errorsDisabled: false, + deadLetterUnhandledMessages: false, + includeMachineNameInHeaders: false, + shutdownTimedOut: () => false, + shutdownPublishToken: () => CancellationToken.None); + } + + /// + /// Builds a processor whose handler signals NotHandled=true so the + /// terminal-failure-publish branch fires, and configures the mock IChannel so + /// that BasicPublishAsync throws the given exception. + /// + private static InboundMessageProcessor MakeTerminalPublishProcessor( + Mock channelMock, + Exception toThrow, + Mock loggerMock) + { + var queueConfig = new Mock(); + queueConfig.SetupGet(q => q.AuditingEnabled).Returns(false); + queueConfig.SetupGet(q => q.AuditQueueName).Returns("audit"); + queueConfig.SetupGet(q => q.QueueName).Returns("q"); + + channelMock + .Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .ThrowsAsync(toThrow); + + var auditPublisher = new MessageAuditPublisher(queueConfig.Object); + + var retryHandler = new MessageRetryHandler( + maxRetries: 0, + errorExchange: "err", + consumerQueueName: "q", + logger: loggerMock.Object); + + // Handler returns Success=true, NotHandled=true to trigger the terminal-failure branch. + static Task HandleAsync(ReadOnlyMemory _, string __, IDictionary ___, CancellationToken ____) => + Task.FromResult(new ConsumeEventResult { Success = true, NotHandled = true }); + + return new InboundMessageProcessor( + consumerEventHandler: (ConsumerEventHandler)HandleAsync, + retryHandler: retryHandler, + auditPublisher: auditPublisher, + queueConfiguration: queueConfig.Object, + timeProvider: TimeProvider.System, + logger: loggerMock.Object, + retryQueueName: "q.retries", + errorsDisabled: false, + deadLetterUnhandledMessages: true, + includeMachineNameInHeaders: false, + shutdownTimedOut: () => false, + shutdownPublishToken: () => CancellationToken.None); + } + + // ── Retry-publish transport discriminator ──────────────────────────────── + + [Fact] + public async Task ProcessAsync_RetryPublishThrowsAlreadyClosed_RethrowsForBrokerRedelivery() + { + var channelMock = new Mock(); + var loggerMock = new Mock(); + loggerMock.Setup(l => l.IsEnabled(It.IsAny())).Returns(true); + + var transportException = new AlreadyClosedException(new ShutdownEventArgs( + ShutdownInitiator.Peer, 0, "test")); + + var processor = MakeRetryPublishProcessor(channelMock, transportException, loggerMock); + + var thrown = await Assert.ThrowsAsync(() => + processor.ProcessAsync(channelMock.Object, MakeArgs(), copiedHeaders: null, CancellationToken.None)); + + Assert.Same(transportException, thrown); + } + + [Fact] + public async Task ProcessAsync_RetryPublishThrowsBrokerUnreachable_RethrowsForBrokerRedelivery() + { + var channelMock = new Mock(); + var loggerMock = new Mock(); + loggerMock.Setup(l => l.IsEnabled(It.IsAny())).Returns(true); + + var transportException = new BrokerUnreachableException(new Exception("inner")); + + var processor = MakeRetryPublishProcessor(channelMock, transportException, loggerMock); + + var thrown = await Assert.ThrowsAsync(() => + processor.ProcessAsync(channelMock.Object, MakeArgs(), copiedHeaders: null, CancellationToken.None)); + + Assert.Same(transportException, thrown); + } + + [Fact] + public async Task ProcessAsync_RetryPublishThrowsPoisonException_SwallowsAndAcks() + { + // Poison-message-style exception (anything not transport-class, not OCE) keeps + // the existing swallow-and-ack behaviour to prevent a hot redelivery loop. + var channelMock = new Mock(); + var loggerMock = new Mock(); + loggerMock.Setup(l => l.IsEnabled(It.IsAny())).Returns(true); + + var poisonException = new InvalidOperationException("poison message"); + + var processor = MakeRetryPublishProcessor(channelMock, poisonException, loggerMock); + + // Returns true (acks) — does not throw. + var processed = await processor.ProcessAsync(channelMock.Object, MakeArgs(), copiedHeaders: null, CancellationToken.None); + Assert.True(processed); + } + + // ── Terminal-failure-publish transport discriminator ────────────────────── + + [Fact] + public async Task ProcessAsync_TerminalFailurePublishThrowsAlreadyClosed_RethrowsForBrokerRedelivery() + { + var channelMock = new Mock(); + var loggerMock = new Mock(); + loggerMock.Setup(l => l.IsEnabled(It.IsAny())).Returns(true); + + var transportException = new AlreadyClosedException(new ShutdownEventArgs( + ShutdownInitiator.Peer, 0, "test")); + + var processor = MakeTerminalPublishProcessor(channelMock, transportException, loggerMock); + + var thrown = await Assert.ThrowsAsync(() => + processor.ProcessAsync(channelMock.Object, MakeArgs(), copiedHeaders: null, CancellationToken.None)); + + Assert.Same(transportException, thrown); + } + + [Fact] + public async Task ProcessAsync_TerminalFailurePublishThrowsPoisonException_SwallowsAndAcks() + { + var channelMock = new Mock(); + var loggerMock = new Mock(); + loggerMock.Setup(l => l.IsEnabled(It.IsAny())).Returns(true); + + var poisonException = new InvalidOperationException("poison"); + + var processor = MakeTerminalPublishProcessor(channelMock, poisonException, loggerMock); + + var processed = await processor.ProcessAsync(channelMock.Object, MakeArgs(), copiedHeaders: null, CancellationToken.None); + Assert.True(processed); + } + + [Fact] + public async Task ProcessAsync_TerminalFailurePublishThrowsBrokerUnreachable_RethrowsForBrokerRedelivery() + { + var channelMock = new Mock(); + var loggerMock = new Mock(); + loggerMock.Setup(l => l.IsEnabled(It.IsAny())).Returns(true); + + var transportException = new BrokerUnreachableException(new Exception("inner")); + + var processor = MakeTerminalPublishProcessor(channelMock, transportException, loggerMock); + + var thrown = await Assert.ThrowsAsync(() => + processor.ProcessAsync(channelMock.Object, MakeArgs(), copiedHeaders: null, CancellationToken.None)); + + Assert.Same(transportException, thrown); + } + + // ── OperationInterruptedException propagation (base type of AlreadyClosedException) ── + + [Fact] + public async Task ProcessAsync_RetryPublishThrowsOperationInterrupted_RethrowsForBrokerRedelivery() + { + // OperationInterruptedException is the base class of AlreadyClosedException. + // A plain base-type throw (e.g. broker-initiated 404/406) must propagate out + // of ProcessAsync so the outer dispatch nacks-with-requeue; it must not be + // swallowed by the generic catch and silently acked. + var channelMock = new Mock(); + var loggerMock = new Mock(); + loggerMock.Setup(l => l.IsEnabled(It.IsAny())).Returns(true); + + var transportException = new OperationInterruptedException( + new ShutdownEventArgs(ShutdownInitiator.Library, 0, "test interruption")); + + var processor = MakeRetryPublishProcessor(channelMock, transportException, loggerMock); + + var thrown = await Assert.ThrowsAsync(() => + processor.ProcessAsync(channelMock.Object, MakeArgs(), copiedHeaders: null, CancellationToken.None)); + + Assert.Same(transportException, thrown); + } + + [Fact] + public async Task ProcessAsync_TerminalFailurePublishThrowsOperationInterrupted_RethrowsForBrokerRedelivery() + { + // Same invariant for the terminal-failure (NotHandled=true) path: a plain + // OperationInterruptedException must propagate, not be swallowed and acked. + var channelMock = new Mock(); + var loggerMock = new Mock(); + loggerMock.Setup(l => l.IsEnabled(It.IsAny())).Returns(true); + + var transportException = new OperationInterruptedException( + new ShutdownEventArgs(ShutdownInitiator.Library, 0, "test interruption")); + + var processor = MakeTerminalPublishProcessor(channelMock, transportException, loggerMock); + + var thrown = await Assert.ThrowsAsync(() => + processor.ProcessAsync(channelMock.Object, MakeArgs(), copiedHeaders: null, CancellationToken.None)); + + Assert.Same(transportException, thrown); + } + + // ── Handler exception forwarded to DLQ (not retry-publish exception) ────── + + [Fact] + public async Task ProcessAsync_RetryPublishFails_FallbackCarriesHandlerException_NotRetryException() + { + // When the retry-publish path throws, the fallback to the error exchange must stamp + // the original handler exception (what the operator cares about) into the DLQ + // Exception header, not the retry-publish exception that caused the reroute. + var channelMock = new Mock(); + var loggerMock = new Mock(); + loggerMock.Setup(l => l.IsEnabled(It.IsAny())).Returns(true); + + var handlerException = new InvalidOperationException("handler-failed-sentinel"); + var retryPublishException = new InvalidOperationException("retry-publish-failed-sentinel"); + + // First BasicPublishAsync (retry path) throws; second (error-exchange fallback) succeeds. + // Track captured properties on the second call to inspect the Exception header. + BasicProperties? capturedProps = null; + int callCount = 0; + channelMock + .Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns((string _exchange, string _rk, bool _mandatory, BasicProperties props, ReadOnlyMemory _body, CancellationToken _ct) => + { + callCount++; + if (callCount == 1) + { + return ValueTask.FromException(retryPublishException); + } + capturedProps = props; + return ValueTask.CompletedTask; + }); + + var queueConfig = new Mock(); + queueConfig.SetupGet(q => q.AuditingEnabled).Returns(false); + queueConfig.SetupGet(q => q.AuditQueueName).Returns("audit"); + queueConfig.SetupGet(q => q.QueueName).Returns("q"); + + var auditPublisher = new MessageAuditPublisher(queueConfig.Object); + var retryHandler = new MessageRetryHandler( + maxRetries: 3, + errorExchange: "err", + consumerQueueName: "q", + logger: loggerMock.Object); + + // Handler throws the sentinel exception directly. + Task HandleAsync(ReadOnlyMemory _, string __, IDictionary ___, CancellationToken ____) => + Task.FromException(handlerException); + + var processor = new InboundMessageProcessor( + consumerEventHandler: (ConsumerEventHandler)HandleAsync, + retryHandler: retryHandler, + auditPublisher: auditPublisher, + queueConfiguration: queueConfig.Object, + timeProvider: TimeProvider.System, + logger: loggerMock.Object, + retryQueueName: "q.retries", + errorsDisabled: false, + deadLetterUnhandledMessages: false, + includeMachineNameInHeaders: false, + shutdownTimedOut: () => false, + shutdownPublishToken: () => CancellationToken.None); + + var processed = await processor.ProcessAsync(channelMock.Object, MakeArgs(), copiedHeaders: null, CancellationToken.None); + + // Fallback completed — message is acked. + Assert.True(processed); + + // The second BasicPublishAsync call must have fired (the error-exchange fallback). + Assert.Equal(2, callCount); + Assert.NotNull(capturedProps); + + // The Exception header must contain the handler exception message, not the retry + // exception, so the DLQ entry identifies the business-logic failure. + var exceptionHeaderRaw = capturedProps!.Headers?["Exception"]; + Assert.NotNull(exceptionHeaderRaw); + var exceptionJson = exceptionHeaderRaw is byte[] bytes + ? System.Text.Encoding.UTF8.GetString(bytes) + : exceptionHeaderRaw as string; + Assert.NotNull(exceptionJson); + Assert.Contains("handler-failed-sentinel", exceptionJson, StringComparison.Ordinal); + Assert.DoesNotContain("retry-publish-failed-sentinel", exceptionJson, StringComparison.Ordinal); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/MessageAuditPublisherCancellationTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/MessageAuditPublisherCancellationTests.cs new file mode 100644 index 000000000..26651999e --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/MessageAuditPublisherCancellationTests.cs @@ -0,0 +1,28 @@ +using Moq; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public class MessageAuditPublisherCancellationTests +{ + [Fact] + public async Task PublishAuditIfEnabledAsync_AuditingDisabled_PreCancelled_ThrowsOCE() + { + var queueConfig = new Mock(); + queueConfig.SetupGet(q => q.AuditingEnabled).Returns(false); + + var publisher = new MessageAuditPublisher(queueConfig.Object); + + using var cts = new CancellationTokenSource(); + cts.Cancel(); + + await Assert.ThrowsAnyAsync(() => + publisher.PublishAuditIfEnabledAsync( + channel: null!, + args: null!, + headers: null!, + cancellationToken: cts.Token)); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/MessageAuditPublisherSwallowFailureTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/MessageAuditPublisherSwallowFailureTests.cs new file mode 100644 index 000000000..eb7dad0db --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/MessageAuditPublisherSwallowFailureTests.cs @@ -0,0 +1,144 @@ +using Microsoft.Extensions.Logging; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Audit publish is best-effort: a failure publishing the audit copy must not propagate +/// into the consumer pipeline (which would nack-with-requeue and re-run the handler) and +/// must not throw on the cancellation path. +/// +public class MessageAuditPublisherSwallowFailureTests +{ + private static BasicDeliverEventArgs MakeArgs() + { + var props = new BasicProperties(); + return new BasicDeliverEventArgs("tag", 1, false, "", "q", props, new byte[] { 1, 2, 3 }); + } + + private static Mock MakeQueueCfg() + { + var cfg = new Mock(); + cfg.SetupGet(c => c.AuditingEnabled).Returns(true); + cfg.SetupGet(c => c.AuditQueueName).Returns("audit"); + return cfg; + } + + [Fact] + public async Task PublishAuditIfEnabledAsync_BasicPublishThrows_SwallowsAndLogsWarning() + { + var channel = new Mock(); + channel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .ThrowsAsync(new InvalidOperationException("broker quota exceeded")); + + // MessageAuditPublisher is internal, so Castle DynamicProxy can't proxy + // ILogger from the test assembly. Use a hand-rolled + // capturing logger instead of Mock> to keep the test self-contained. + var capturingLogger = new CapturingLogger(); + var publisher = new MessageAuditPublisher(MakeQueueCfg().Object, capturingLogger); + var headers = new Dictionary { [HeaderKeys.MessageType] = "SomeMessage" }; + + // Must not throw — audit failure is swallowed. + await publisher.PublishAuditIfEnabledAsync(channel.Object, MakeArgs(), headers); + + Assert.Contains(capturingLogger.Entries, e => + e.Level == LogLevel.Warning && e.Message.Contains("Audit publish failed", StringComparison.Ordinal)); + } + + private sealed class CapturingLogger : ILogger + { + public List<(LogLevel Level, string Message, Exception? Exception)> Entries { get; } = []; + + public IDisposable? BeginScope(TState state) where TState : notnull => null; + public bool IsEnabled(LogLevel logLevel) => true; + public void Log(LogLevel logLevel, EventId eventId, TState state, Exception? exception, Func formatter) + { + Entries.Add((logLevel, formatter(state, exception), exception)); + } + } + + [Fact] + public async Task PublishAuditIfEnabledAsync_BasicPublishThrowsOperationCanceled_Propagates() + { + var channel = new Mock(); + channel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .ThrowsAsync(new OperationCanceledException()); + + var publisher = new MessageAuditPublisher(MakeQueueCfg().Object, NullLogger.Instance); + var headers = new Dictionary { [HeaderKeys.MessageType] = "SomeMessage" }; + + await Assert.ThrowsAsync( + () => publisher.PublishAuditIfEnabledAsync(channel.Object, MakeArgs(), headers)); + } + + [Fact] + public async Task PublishAuditIfEnabledAsync_PreservesAllSourceBasicProperties() + { + // The audit path uses BasicPropertiesCopier (field-by-field copy) rather than the + // BasicProperties copy-constructor, mirroring MessageRetryHandler. Adding a new + // AMQP BASIC field to the copier without updating this assertion is a silent + // regression — the field would be dropped from every audit publish. + BasicProperties? capturedProps = null; + var channel = new Mock(); + channel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Callback, CancellationToken>( + (_, _, _, p, _, _) => capturedProps = p) + .Returns(ValueTask.CompletedTask); + + var sourceProps = new BasicProperties + { + ContentType = "application/json", + ContentEncoding = "utf-8", + DeliveryMode = DeliveryModes.Persistent, + Priority = (byte)5, + CorrelationId = "corr-audit", + ReplyTo = "reply.queue", + Expiration = "60000", + MessageId = "msg-audit", + Timestamp = new AmqpTimestamp(1234567890), + Type = "AuditMsg", + UserId = "guest", + AppId = "test-app", + ClusterId = "cluster-1", + }; + var args = new BasicDeliverEventArgs("ct", 1, false, "", "q", sourceProps, new byte[] { 1, 2, 3 }); + + var publisher = new MessageAuditPublisher(MakeQueueCfg().Object, NullLogger.Instance); + var headers = new Dictionary { [HeaderKeys.MessageType] = "AuditMsg" }; + + await publisher.PublishAuditIfEnabledAsync(channel.Object, args, headers); + + Assert.NotNull(capturedProps); + Assert.Equal("application/json", capturedProps.ContentType); + Assert.Equal("utf-8", capturedProps.ContentEncoding); + Assert.Equal(DeliveryModes.Persistent, capturedProps.DeliveryMode); + Assert.Equal((byte)5, capturedProps.Priority); + Assert.Equal("corr-audit", capturedProps.CorrelationId); + Assert.Equal("reply.queue", capturedProps.ReplyTo); + Assert.Equal("60000", capturedProps.Expiration); + Assert.Equal("msg-audit", capturedProps.MessageId); + Assert.Equal(new AmqpTimestamp(1234567890), capturedProps.Timestamp); + Assert.Equal("AuditMsg", capturedProps.Type); + // UserId / AppId / ClusterId are deliberately dropped on republish — see + // BasicPropertiesCopier's xmldoc for the validated_user_id rationale. + Assert.False(capturedProps.IsUserIdPresent()); + Assert.False(capturedProps.IsAppIdPresent()); + Assert.False(capturedProps.IsClusterIdPresent()); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/MessageAuditPublisherTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/MessageAuditPublisherTests.cs new file mode 100644 index 000000000..292383741 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/MessageAuditPublisherTests.cs @@ -0,0 +1,98 @@ +using Moq; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public class MessageAuditPublisherTests +{ + private static BasicDeliverEventArgs MakeArgs() + { + var props = new BasicProperties(); + return new BasicDeliverEventArgs("tag", 1, false, "", "q", props, new byte[] { 1, 2, 3 }); + } + + private static Mock MakeQueueCfg( + bool auditingEnabled, + string auditExchange = "audit") + { + var cfg = new Mock(); + cfg.SetupGet(c => c.AuditingEnabled).Returns(auditingEnabled); + cfg.SetupGet(c => c.AuditQueueName).Returns(auditExchange); + return cfg; + } + + [Fact] + public async Task PublishAuditIfEnabledAsync_Publishes_WhenAuditingEnabled() + { + var channel = new Mock(); + channel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns(ValueTask.CompletedTask); + + var publisher = new MessageAuditPublisher(MakeQueueCfg(true).Object); + var headers = new Dictionary { [HeaderKeys.MessageType] = "SomeMessage" }; + + await publisher.PublishAuditIfEnabledAsync(channel.Object, MakeArgs(), headers); + + channel.Verify(c => c.BasicPublishAsync( + "audit", string.Empty, true, + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Once); + } + + [Fact] + public async Task PublishAuditIfEnabledAsync_Skips_WhenAuditingDisabled() + { + var channel = new Mock(); + var publisher = new MessageAuditPublisher(MakeQueueCfg(false).Object); + + await publisher.PublishAuditIfEnabledAsync(channel.Object, MakeArgs(), []); + + channel.Verify(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Never); + } + + [Fact] + public async Task PublishAuditIfEnabledAsync_Skips_ForByteStreamMessageType() + { + var channel = new Mock(); + var publisher = new MessageAuditPublisher(MakeQueueCfg(true).Object); + var headers = new Dictionary { [HeaderKeys.MessageType] = HeaderKeys.ByteStream }; + + await publisher.PublishAuditIfEnabledAsync(channel.Object, MakeArgs(), headers); + + channel.Verify(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Never); + } + + [Fact] + public async Task PublishAuditIfEnabledAsync_Publishes_WhenMessageTypeHeaderAbsent() + { + var channel = new Mock(); + channel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns(ValueTask.CompletedTask); + + var publisher = new MessageAuditPublisher(MakeQueueCfg(true).Object); + + await publisher.PublishAuditIfEnabledAsync(channel.Object, MakeArgs(), []); + + channel.Verify(c => c.BasicPublishAsync( + "audit", string.Empty, true, + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Once); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/MessageRetryHandlerCopyPropsTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/MessageRetryHandlerCopyPropsTests.cs new file mode 100644 index 000000000..faa96bb79 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/MessageRetryHandlerCopyPropsTests.cs @@ -0,0 +1,117 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public sealed class MessageRetryHandlerCopyPropsTests +{ + [Fact] + public async Task HandleFailureAsync_RetryPublish_PreservesAllSourceProperties() + { + BasicProperties? capturedProps = null; + var channel = new Mock(); + channel + .Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), It.IsAny())) + .Callback, CancellationToken>( + (_, _, _, p, _, _) => capturedProps = p) + .Returns(ValueTask.CompletedTask); + + var sourceProps = new BasicProperties + { + ContentType = "application/json", + ContentEncoding = "utf-8", + DeliveryMode = DeliveryModes.Persistent, + Priority = (byte)5, + CorrelationId = "corr-1", + ReplyTo = "reply.queue", + Expiration = "60000", + MessageId = "msg-1", + Timestamp = new AmqpTimestamp(1234567890), + Type = "MyMessage", + UserId = "guest", + AppId = "test-app", + ClusterId = "cluster-1", + }; + + var args = new BasicDeliverEventArgs( + consumerTag: "ct", + deliveryTag: 1, + redelivered: false, + exchange: "", + routingKey: "main", + properties: sourceProps, + body: new byte[] { 1 }); + + var handler = new MessageRetryHandler(maxRetries: 3, errorExchange: "error", consumerQueueName: "test.consumer.queue", NullLogger.Instance); + var headers = new Dictionary(StringComparer.Ordinal); + + await handler.HandleFailureAsync(channel.Object, "main.Retries", args, headers, ex: null); + + Assert.NotNull(capturedProps); + Assert.Equal("application/json", capturedProps.ContentType); + Assert.Equal("utf-8", capturedProps.ContentEncoding); + Assert.Equal(DeliveryModes.Persistent, capturedProps.DeliveryMode); + Assert.Equal((byte)5, capturedProps.Priority); + Assert.Equal("corr-1", capturedProps.CorrelationId); + Assert.Equal("reply.queue", capturedProps.ReplyTo); + Assert.Equal("60000", capturedProps.Expiration); + Assert.Equal("msg-1", capturedProps.MessageId); + Assert.Equal(new AmqpTimestamp(1234567890), capturedProps.Timestamp); + Assert.Equal("MyMessage", capturedProps.Type); + // UserId / AppId / ClusterId are deliberately dropped on republish — see + // BasicPropertiesCopier's xmldoc. Asserting they're NOT preserved makes the + // intentional safety behaviour load-bearing on the test suite. + Assert.False(capturedProps.IsUserIdPresent()); + Assert.False(capturedProps.IsAppIdPresent()); + Assert.False(capturedProps.IsClusterIdPresent()); + } + + [Fact] + public async Task HandleTerminalFailureAsync_PreservesAllSourceProperties() + { + BasicProperties? capturedProps = null; + var channel = new Mock(); + channel + .Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), It.IsAny())) + .Callback, CancellationToken>( + (_, _, _, p, _, _) => capturedProps = p) + .Returns(ValueTask.CompletedTask); + + var sourceProps = new BasicProperties + { + ContentType = "application/json", + CorrelationId = "corr-2", + MessageId = "msg-2", + Type = "TerminalMsg", + }; + + var args = new BasicDeliverEventArgs( + consumerTag: "ct", + deliveryTag: 1, + redelivered: false, + exchange: "", + routingKey: "main", + properties: sourceProps, + body: new byte[] { 1 }); + + var handler = new MessageRetryHandler(maxRetries: 3, errorExchange: "error", consumerQueueName: "test.consumer.queue", NullLogger.Instance); + var headers = new Dictionary(StringComparer.Ordinal); + + await handler.HandleTerminalFailureAsync(channel.Object, args, headers, new InvalidOperationException("test")); + + Assert.NotNull(capturedProps); + Assert.Equal("application/json", capturedProps.ContentType); + Assert.Equal("corr-2", capturedProps.CorrelationId); + Assert.Equal("msg-2", capturedProps.MessageId); + Assert.Equal("TerminalMsg", capturedProps.Type); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/MessageRetryHandlerMandatoryTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/MessageRetryHandlerMandatoryTests.cs new file mode 100644 index 000000000..85d780287 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/MessageRetryHandlerMandatoryTests.cs @@ -0,0 +1,72 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public sealed class MessageRetryHandlerMandatoryTests +{ + private static (MessageRetryHandler handler, Mock channel, List mandatoryCaptures) CreateHandler(int maxRetries) + { + var captures = new List(); + var channel = new Mock(); + channel + .Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), It.IsAny())) + .Callback, CancellationToken>( + (_, _, mandatory, _, _, _) => captures.Add(mandatory)) + .Returns(ValueTask.CompletedTask); + + return (new MessageRetryHandler(maxRetries, "error.exchange", "test.consumer.queue", NullLogger.Instance), channel, captures); + } + + private static BasicDeliverEventArgs MakeArgs() => new( + consumerTag: "ct", + deliveryTag: 1, + redelivered: false, + exchange: "", + routingKey: "main", + properties: new BasicProperties(), + body: new byte[] { 1 }); + + [Fact] + public async Task HandleFailureAsync_RetryPath_PublishesMandatoryTrue() + { + var (handler, channel, captures) = CreateHandler(maxRetries: 3); + var headers = new Dictionary(StringComparer.Ordinal); + + await handler.HandleFailureAsync(channel.Object, "main.Retries", MakeArgs(), headers, ex: null); + + var mandatory = Assert.Single(captures); + Assert.True(mandatory); + } + + [Fact] + public async Task HandleFailureAsync_MaxRetriesPath_PublishesMandatoryTrue() + { + var (handler, channel, captures) = CreateHandler(maxRetries: 0); // first failure → error + var headers = new Dictionary(StringComparer.Ordinal); + + await handler.HandleFailureAsync(channel.Object, "main.Retries", MakeArgs(), headers, ex: null); + + var mandatory = Assert.Single(captures); + Assert.True(mandatory); + } + + [Fact] + public async Task HandleTerminalFailureAsync_PublishesMandatoryTrue() + { + var (handler, channel, captures) = CreateHandler(maxRetries: 3); + var headers = new Dictionary(StringComparer.Ordinal); + + await handler.HandleTerminalFailureAsync(channel.Object, MakeArgs(), headers, new InvalidOperationException("test")); + + var mandatory = Assert.Single(captures); + Assert.True(mandatory); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/MessageRetryHandlerMetricsTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/MessageRetryHandlerMetricsTests.cs new file mode 100644 index 000000000..8c3f9df2a --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/MessageRetryHandlerMetricsTests.cs @@ -0,0 +1,80 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Diagnostics; +using ServiceConnect.UnitTests.Diagnostics; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Asserts the counter increments at the retry-counter +/// header bump in MessageRetryHandler.HandleFailureAsync. The metric fires before the +/// downstream BasicPublishAsync; the publish itself may still fail and surface as +/// via InboundMessageProcessor. +/// +public sealed class MessageRetryHandlerMetricsTests +{ + private static BasicDeliverEventArgs MakeArgs() => new( + consumerTag: "ct", + deliveryTag: 1, + redelivered: false, + exchange: "", + routingKey: "main", + properties: new BasicProperties(), + body: new byte[] { 1 }); + + [Fact] + public async Task HandleFailureAsync_RetryPath_IncrementsRetryAttempts() + { + // Per-test unique queue name so MetricCollector's tag filter isolates this test + // from any other test running in parallel that emits on the same instrument. + var consumerQueueName = $"q-consumer-{Guid.NewGuid():N}"; + var retryQueueName = $"{consumerQueueName}.Retries"; + using var collector = new MetricCollector("messaging.destination.name", consumerQueueName); + + var channel = new Mock(); + channel + .Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), It.IsAny())) + .Returns(ValueTask.CompletedTask); + + var handler = new MessageRetryHandler(maxRetries: 3, errorExchange: "err", consumerQueueName, NullLogger.Instance); + var headers = new Dictionary(StringComparer.Ordinal); + + await handler.HandleFailureAsync(channel.Object, retryQueueName, MakeArgs(), headers, ex: null); + + var record = Assert.Single(collector.GetLongRecords(MetricNames.RetryAttempts)); + Assert.Equal(1, record.Value); + Assert.Equal("rabbitmq", record.GetTag("messaging.system")); + Assert.Equal(consumerQueueName, record.GetTag("messaging.destination.name")); + Assert.Equal(retryQueueName, record.GetTag("messaging.serviceconnect.retry.target")); + } + + [Fact] + public async Task HandleFailureAsync_MaxRetriesExceeded_DoesNotIncrementRetryAttempts() + { + // maxRetries=0 routes the first failure straight to the error exchange (no retry-publish), + // so the increment site is not reached and the counter stays at zero. + var consumerQueueName = $"q-consumer-{Guid.NewGuid():N}"; + var retryQueueName = $"{consumerQueueName}.Retries"; + using var collector = new MetricCollector("messaging.destination.name", consumerQueueName); + + var channel = new Mock(); + channel + .Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), It.IsAny())) + .Returns(ValueTask.CompletedTask); + + var handler = new MessageRetryHandler(maxRetries: 0, errorExchange: "err", consumerQueueName, NullLogger.Instance); + var headers = new Dictionary(StringComparer.Ordinal); + + await handler.HandleFailureAsync(channel.Object, retryQueueName, MakeArgs(), headers, ex: new InvalidOperationException("test")); + + Assert.Empty(collector.GetLongRecords(MetricNames.RetryAttempts)); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/MessageRetryHandlerRetryCountValidationTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/MessageRetryHandlerRetryCountValidationTests.cs new file mode 100644 index 000000000..b7f0510f7 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/MessageRetryHandlerRetryCountValidationTests.cs @@ -0,0 +1,97 @@ +using Microsoft.Extensions.Logging; +using Moq; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public sealed class MessageRetryHandlerRetryCountValidationTests +{ + private const int MaxRetries = 3; + + private static (MessageRetryHandler handler, Mock channel, List<(string Exchange, string RoutingKey)> publishes, List<(LogLevel Level, string Message)> logs) CreateHandler() + { + var publishes = new List<(string, string)>(); + var channel = new Mock(); + channel + .Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), It.IsAny())) + .Callback, CancellationToken>( + (ex, rk, _, _, _, _) => publishes.Add((ex, rk))) + .Returns(ValueTask.CompletedTask); + + var captured = new List<(LogLevel, string)>(); + var logger = new Mock(); + logger.Setup(l => l.IsEnabled(It.IsAny())).Returns(true); + logger.Setup(l => l.Log( + It.IsAny(), + It.IsAny(), + It.IsAny(), + It.IsAny(), + (Func)It.IsAny())) + .Callback(new InvocationAction(invocation => + { + var level = (LogLevel)invocation.Arguments[0]; + var formatter = (Delegate)invocation.Arguments[4]; + var message = (string)formatter.DynamicInvoke(invocation.Arguments[2], invocation.Arguments[3])!; + captured.Add((level, message)); + })); + + var handler = new MessageRetryHandler(MaxRetries, "test.error", "test.consumer.queue", logger.Object); + return (handler, channel, publishes, captured); + } + + private static BasicDeliverEventArgs MakeArgs() => new( + consumerTag: "ct", + deliveryTag: 1, + redelivered: false, + exchange: "", + routingKey: "main", + properties: new BasicProperties(), + body: new byte[] { 1 }); + + [Fact] + public async Task RetryCount_EqualsMaxRetries_RoutesToErrorExchange_NotMalformed() + { + var (handler, channel, publishes, logs) = CreateHandler(); + var args = MakeArgs(); + var headers = new Dictionary(StringComparer.Ordinal) + { + [HeaderKeys.RetryCount] = MaxRetries, + }; + + await handler.HandleFailureAsync(channel.Object, "main.Retries", args, headers, ex: null); + + // Routes to the error exchange (max-retries-exceeded path). + var (exchange, _) = Assert.Single(publishes); + Assert.Equal("test.error", exchange); + + // No "Malformed or out-of-range" warning — the value is at the legitimate boundary. + Assert.DoesNotContain(logs, l => l.Message.Contains("Malformed or out-of-range")); + } + + [Fact] + public async Task RetryCount_GreaterThanMaxRetries_RoutedToErrorAsMalformed() + { + var (handler, channel, publishes, logs) = CreateHandler(); + var args = MakeArgs(); + var headers = new Dictionary(StringComparer.Ordinal) + { + [HeaderKeys.RetryCount] = MaxRetries + 1, // out-of-range + }; + + await handler.HandleFailureAsync(channel.Object, "main.Retries", args, headers, ex: null); + + // Routes to the error exchange via the "malformed" path. + var (exchange, _) = Assert.Single(publishes); + Assert.Equal("test.error", exchange); + + // The "Malformed or out-of-range" warning fires. + var (_, message) = Assert.Single(logs, l => l.Level == LogLevel.Warning); + Assert.Contains("Malformed or out-of-range", message); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/MessageRetryHandlerTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/MessageRetryHandlerTests.cs new file mode 100644 index 000000000..727cf2dd8 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/MessageRetryHandlerTests.cs @@ -0,0 +1,313 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using System.Text.Json.Nodes; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public class MessageRetryHandlerTests +{ + private static BasicDeliverEventArgs MakeArgs(byte[]? body = null) + { + var props = new BasicProperties(); + return new BasicDeliverEventArgs( + consumerTag: "tag", + deliveryTag: 1, + redelivered: false, + exchange: "", + routingKey: "q", + properties: props, + body: body ?? [1, 2, 3]); + } + + [Fact] + public async Task HandleFailureAsync_UnderMaxRetries_IncrementsCountAndPublishesToRetryQueue() + { + var channel = new Mock(); + channel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns(ValueTask.CompletedTask); + + var handler = new MessageRetryHandler( + maxRetries: 3, errorExchange: "err", consumerQueueName: "test.consumer.queue", NullLogger.Instance); + + var args = MakeArgs(); + var headers = new Dictionary(); + + await handler.HandleFailureAsync(channel.Object, "q.Retries", args, headers, ex: null); + + Assert.Equal(1, (int)headers[HeaderKeys.RetryCount]); + channel.Verify(c => c.BasicPublishAsync( + string.Empty, "q.Retries", true, + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Once); + } + + [Fact] + public async Task HandleFailureAsync_AtMaxRetries_PublishesToErrorExchange() + { + var channel = new Mock(); + channel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns(ValueTask.CompletedTask); + + var handler = new MessageRetryHandler(maxRetries: 1, errorExchange: "err", consumerQueueName: "test.consumer.queue", NullLogger.Instance); + var args = MakeArgs(); + var headers = new Dictionary { [HeaderKeys.RetryCount] = 1 }; + + await handler.HandleFailureAsync(channel.Object, "q.Retries", args, headers, ex: new InvalidOperationException("oops")); + + channel.Verify(c => c.BasicPublishAsync( + "err", string.Empty, true, + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Once); + } + + [Fact] + public async Task HandleTerminalFailureAsync_PublishesToErrorExchange_WithoutIncrementingRetryCount() + { + var channel = new Mock(); + channel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns(ValueTask.CompletedTask); + + var handler = new MessageRetryHandler(maxRetries: 3, errorExchange: "err", consumerQueueName: "test.consumer.queue", NullLogger.Instance); + var args = MakeArgs(); + var headers = new Dictionary { [HeaderKeys.RetryCount] = 2 }; + + await handler.HandleTerminalFailureAsync( + channel.Object, + args, + headers, + new InvalidOperationException("invalid inbound message")); + + Assert.Equal(2, (int)headers[HeaderKeys.RetryCount]); + channel.Verify(c => c.BasicPublishAsync( + "err", string.Empty, true, + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Once); + } + + [Fact] + public async Task HandleTerminalFailureAsync_IncludesSanitizedExceptionPayload() + { + var channel = new Mock(); + channel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns(ValueTask.CompletedTask); + + var handler = new MessageRetryHandler(maxRetries: 3, errorExchange: "err", consumerQueueName: "test.consumer.queue", NullLogger.Instance); + var args = MakeArgs(); + var headers = new Dictionary(); + + await handler.HandleTerminalFailureAsync( + channel.Object, + args, + headers, + new InvalidOperationException("invalid inbound message")); + + var payload = JsonNode.Parse((string)headers[HeaderKeys.Exception])!.AsObject(); + Assert.Equal(typeof(InvalidOperationException).FullName, (string?)payload["ExceptionType"]); + Assert.Contains("invalid inbound message", (string?)payload["Message"] ?? ""); + Assert.Null(payload["StackTrace"]); + } + + [Fact] + public async Task HandleFailureAsync_AtMaxRetries_IncludesExceptionTypeAndMessage_ButNoStackTrace() + { + var channel = new Mock(); + channel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns(ValueTask.CompletedTask); + + var handler = new MessageRetryHandler(maxRetries: 0, errorExchange: "err", consumerQueueName: "test.consumer.queue", NullLogger.Instance); + var args = MakeArgs(); + var headers = new Dictionary(); + + try { throw new InvalidOperationException("boom"); } + catch (InvalidOperationException caught) + { + await handler.HandleFailureAsync(channel.Object, "q.Retries", args, headers, ex: caught); + } + + Assert.True(headers.ContainsKey(HeaderKeys.Exception)); + var payload = JsonNode.Parse((string)headers[HeaderKeys.Exception])!.AsObject(); + Assert.Equal(typeof(InvalidOperationException).FullName, (string?)payload["ExceptionType"]); + Assert.Contains("boom", (string?)payload["Message"] ?? ""); + Assert.Null(payload["StackTrace"]); + } + + [Fact] + public async Task HandleFailureAsync_NoException_StillPublishesToErrorExchange() + { + var channel = new Mock(); + channel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns(ValueTask.CompletedTask); + + var handler = new MessageRetryHandler(maxRetries: 0, errorExchange: "err", consumerQueueName: "test.consumer.queue", NullLogger.Instance); + var args = MakeArgs(); + var headers = new Dictionary(); + + await handler.HandleFailureAsync(channel.Object, "q.Retries", args, headers, ex: null); + + channel.Verify(c => c.BasicPublishAsync( + "err", string.Empty, true, + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Once); + Assert.False(headers.ContainsKey(HeaderKeys.Exception)); + } + + [Fact] + public async Task HandleFailureAsync_ReadsExistingRetryCount_FromHeaders() + { + var channel = new Mock(); + channel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns(ValueTask.CompletedTask); + + var handler = new MessageRetryHandler(maxRetries: 5, errorExchange: "err", consumerQueueName: "test.consumer.queue", NullLogger.Instance); + var args = MakeArgs(); + var headers = new Dictionary { [HeaderKeys.RetryCount] = 2 }; + + await handler.HandleFailureAsync(channel.Object, "q.Retries", args, headers, ex: null); + + Assert.Equal(3, (int)headers[HeaderKeys.RetryCount]); + } + + [Fact] + public async Task HandleFailureAsync_MalformedRetryCount_RoutesToErrorExchange() + { + // A malformed RetryCount header must not silently reset the retry budget + // to zero — a corrupt or attacker-controlled header could otherwise loop + // the message forever. Route the message straight to the error exchange. + var channel = new Mock(); + channel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns(ValueTask.CompletedTask); + + var handler = new MessageRetryHandler(maxRetries: 5, errorExchange: "err", consumerQueueName: "test.consumer.queue", NullLogger.Instance); + var args = MakeArgs(); + var headers = new Dictionary { [HeaderKeys.RetryCount] = "not-a-number" }; + + await handler.HandleFailureAsync(channel.Object, "q.Retries", args, headers, ex: null); + + channel.Verify(c => c.BasicPublishAsync( + "err", string.Empty, true, + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Once); + channel.Verify(c => c.BasicPublishAsync( + string.Empty, "q.Retries", true, + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Never); + } + + [Theory] + [InlineData(-1)] + [InlineData(-42)] + [InlineData(9999)] + public async Task HandleFailureAsync_OutOfRangeRetryCount_RoutesToErrorExchange(int badCount) + { + var channel = new Mock(); + channel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns(ValueTask.CompletedTask); + + var handler = new MessageRetryHandler(maxRetries: 3, errorExchange: "err", consumerQueueName: "test.consumer.queue", NullLogger.Instance); + var args = MakeArgs(); + var headers = new Dictionary { [HeaderKeys.RetryCount] = badCount }; + + await handler.HandleFailureAsync(channel.Object, "q.Retries", args, headers, ex: null); + + channel.Verify(c => c.BasicPublishAsync( + "err", string.Empty, true, + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Once); + channel.Verify(c => c.BasicPublishAsync( + string.Empty, "q.Retries", true, + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Never); + } + + // --- byte[] wire encoding from non-.NET producers --- + + [Fact] + public async Task HandleFailureAsync_WhenRetryCountHeaderIsByteArray_DecodesAndRetries() + { + // Non-.NET producers stamp the RetryCount header as an AMQP string → byte[] on the wire. + // The handler must run the value through HeaderDecoder.Decode so the byte[] decodes to + // its UTF-8 number; relying on raw.ToString() would yield "System.Byte[]", int.TryParse + // would fail, and candidate=-1 would route the message to the error exchange. + var channel = new Mock(); + channel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns(ValueTask.CompletedTask); + + var handler = new MessageRetryHandler(maxRetries: 5, errorExchange: "err", consumerQueueName: "test.consumer.queue", NullLogger.Instance); + var args = MakeArgs(); + // Simulate an AMQP string-typed header arriving as UTF-8 bytes (non-.NET producer). + var utf8 = System.Text.Encoding.UTF8.GetBytes("3"); + var headers = new Dictionary { [HeaderKeys.RetryCount] = utf8 }; + + await handler.HandleFailureAsync(channel.Object, "q.Retries", args, headers, ex: null); + + // Should increment to 4 and publish to retry queue, NOT to error exchange. + Assert.Equal(4, (int)headers[HeaderKeys.RetryCount]); + channel.Verify(c => c.BasicPublishAsync( + string.Empty, "q.Retries", true, + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Once); + channel.Verify(c => c.BasicPublishAsync( + "err", string.Empty, true, + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Never); + } + + [Fact] + public async Task HandleFailureAsync_WhenRetryCountHeaderIsInt_ReturnsInt() + { + // Native C# producers stamp the RetryCount header as int — must still decode cleanly. + var channel = new Mock(); + channel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns(ValueTask.CompletedTask); + + var handler = new MessageRetryHandler(maxRetries: 5, errorExchange: "err", consumerQueueName: "test.consumer.queue", NullLogger.Instance); + var args = MakeArgs(); + var headers = new Dictionary { [HeaderKeys.RetryCount] = 5 }; + + // At max retries → routes to error. + await handler.HandleFailureAsync(channel.Object, "q.Retries", args, headers, ex: null); + + channel.Verify(c => c.BasicPublishAsync( + "err", string.Empty, true, + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Once); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/OutboundHeaderBuilderAliasingTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/OutboundHeaderBuilderAliasingTests.cs new file mode 100644 index 000000000..c03838d94 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/OutboundHeaderBuilderAliasingTests.cs @@ -0,0 +1,43 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Microsoft.Extensions.Time.Testing; +using Moq; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Locks in the zero-copy aliasing invariant: BuildBasicProperties assigns the input +/// messageHeaders dictionary directly to BasicProperties.Headers — no copy. +/// +/// Maintenance hazard: this test only proves the immediate aliasing. The load-bearing +/// safety guarantee lives elsewhere — Producer.cs callers must not mutate messageHeaders +/// while a publish using the returned BasicProperties is in flight. SendAsync(Type) +/// already mutates between fan-out iterations; that's safe ONLY because publisher-confirms +/// gate the prior await PublishWithTimeoutAsync on the broker ack. See the aliasing-safety +/// comment in OutboundHeaderBuilder.BuildBasicProperties for the binding contract and the +/// publisher-confirms dependency. This test catches silent re-introduction of a defensive +/// copy; it does NOT catch new post-BuildBasicProperties mutation sites. +/// +public sealed class OutboundHeaderBuilderAliasingTests +{ + [Fact] + public void BuildBasicProperties_AssignsHeadersDirectly_WithoutCopy() + { + var busConfig = new Mock(); + busConfig.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + + var queueConfig = new Mock(); + queueConfig.SetupGet(q => q.QueueName).Returns("source-q"); + + var builder = new OutboundHeaderBuilder( + busConfig.Object, queueConfig.Object, new FakeTimeProvider(), NullLogger.Instance); + + var messageHeaders = builder.BuildHeaders(typeof(string), null, "framework-q", "Publish"); + + var basicProperties = builder.BuildBasicProperties(messageHeaders); + + Assert.Same(messageHeaders, basicProperties.Headers); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/OutboundHeaderBuilderHopCounterTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/OutboundHeaderBuilderHopCounterTests.cs new file mode 100644 index 000000000..58ddd486a --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/OutboundHeaderBuilderHopCounterTests.cs @@ -0,0 +1,73 @@ +using Microsoft.Extensions.Logging; +using Microsoft.Extensions.Time.Testing; +using Moq; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public sealed class OutboundHeaderBuilderHopCounterTests +{ + private static OutboundHeaderBuilder NewBuilder() + { + var busConfig = new Mock(); + busConfig.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + + var queueConfig = new Mock(); + queueConfig.SetupGet(q => q.QueueName).Returns("test-q"); + + var logger = new Mock(); + logger.Setup(l => l.IsEnabled(It.IsAny())).Returns(true); + + return new OutboundHeaderBuilder(busConfig.Object, queueConfig.Object, new FakeTimeProvider(), logger.Object); + } + + [Fact] + public void BuildHeaders_FrameworkHopsSet_StampsOnOutput() + { + var builder = NewBuilder(); + var result = builder.BuildHeaders( + type: typeof(string), + headers: null, + queueName: "dest-q", + messageType: "TestMessage", + routingSlipHopsCompleted: 4); + + Assert.Equal("4", result[HeaderKeys.RoutingSlipHopsCompleted]); + } + + [Fact] + public void BuildHeaders_CallerSuppliesHopHeader_FrameworkValueWins() + { + var builder = NewBuilder(); + var callerHeaders = new Dictionary(StringComparer.Ordinal) + { + [HeaderKeys.RoutingSlipHopsCompleted] = "0", + }; + + var result = builder.BuildHeaders( + type: typeof(string), + headers: callerHeaders, + queueName: "dest-q", + messageType: "TestMessage", + routingSlipHopsCompleted: 4); + + Assert.Equal("4", result[HeaderKeys.RoutingSlipHopsCompleted]); + } + + [Fact] + public void BuildHeaders_NoFrameworkHops_DoesNotStamp() + { + var builder = NewBuilder(); + var result = builder.BuildHeaders( + type: typeof(string), + headers: null, + queueName: "dest-q", + messageType: "TestMessage", + routingSlipHopsCompleted: null); + + Assert.False(result.ContainsKey(HeaderKeys.RoutingSlipHopsCompleted)); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/OutboundHeaderBuilderOperationNameTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/OutboundHeaderBuilderOperationNameTests.cs new file mode 100644 index 000000000..dcf3c67e6 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/OutboundHeaderBuilderOperationNameTests.cs @@ -0,0 +1,64 @@ +using System; +using System.Collections.Generic; +using Microsoft.Extensions.Logging.Abstractions; +using Microsoft.Extensions.Time.Testing; +using Moq; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Pins the contract that OutboundHeaderBuilder is the sole authoritative stamper of +/// MessageType on the wire. The value is the operation name ("Publish"|"Send"|"ByteStream"), +/// not a CLR type name. Type identity is carried by TypeName / FullTypeName. +/// +public sealed class OutboundHeaderBuilderOperationNameTests +{ + private static OutboundHeaderBuilder CreateBuilder() + { + var busConfig = new Mock(); + busConfig.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + + var queueConfig = new Mock(); + queueConfig.SetupGet(q => q.QueueName).Returns("q"); + + return new OutboundHeaderBuilder( + busConfig.Object, + queueConfig.Object, + new FakeTimeProvider(), + NullLogger.Instance); + } + + [Theory] + [InlineData("Publish")] + [InlineData("Send")] + [InlineData("ByteStream")] + public void BuildHeaders_StampsOperationNameInMessageType(string operation) + { + var headers = CreateBuilder().BuildHeaders(typeof(string), null, "queue", operation); + + // Contract: MessageType is the operation name on the wire. The builder is + // the sole stamper; Bus does not write MessageType into the envelope. + Assert.Equal(operation, headers[HeaderKeys.MessageType]); + Assert.Equal(typeof(string).FullName, headers[HeaderKeys.TypeName]); + Assert.Equal(typeof(string).AssemblyQualifiedName, headers[HeaderKeys.FullTypeName]); + } + + [Fact] + public void BuildHeaders_CallerSuppliesMessageType_OverwrittenByOperationName() + { + // Even if the Bus were to pass MessageType in the header dictionary, + // the builder overwrites it with the authoritative operation name. + var caller = new Dictionary + { + [HeaderKeys.MessageType] = "caller.spoof", + }; + + var headers = CreateBuilder().BuildHeaders(typeof(string), caller, "queue", "Publish"); + + Assert.Equal("Publish", headers[HeaderKeys.MessageType]); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/OutboundHeaderBuilderPriorityTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/OutboundHeaderBuilderPriorityTests.cs new file mode 100644 index 000000000..695d18e10 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/OutboundHeaderBuilderPriorityTests.cs @@ -0,0 +1,90 @@ +using Microsoft.Extensions.Logging; +using Microsoft.Extensions.Time.Testing; +using Moq; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public sealed class OutboundHeaderBuilderPriorityTests +{ + private static (OutboundHeaderBuilder builder, List<(LogLevel Level, string Message, Exception? Exception)> logs) CreateBuilder() + { + var busConfig = new Mock(); + busConfig.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + + var queueConfig = new Mock(); + queueConfig.SetupGet(q => q.QueueName).Returns("q"); + + var captured = new List<(LogLevel, string, Exception?)>(); + var logger = new Mock(); + logger.Setup(l => l.IsEnabled(It.IsAny())).Returns(true); + logger.Setup(l => l.Log( + It.IsAny(), + It.IsAny(), + It.IsAny(), + It.IsAny(), + (Func)It.IsAny())) + .Callback(new InvocationAction(invocation => + { + var level = (LogLevel)invocation.Arguments[0]; + var ex = (Exception?)invocation.Arguments[3]; + var formatter = (Delegate)invocation.Arguments[4]; + var message = (string)formatter.DynamicInvoke(invocation.Arguments[2], invocation.Arguments[3])!; + captured.Add((level, message, ex)); + })); + + var builder = new OutboundHeaderBuilder( + busConfig.Object, + queueConfig.Object, + new FakeTimeProvider(), + logger.Object); + return (builder, captured); + } + + [Fact] + public void Priority_ValidByte_StampsAndDoesNotLog() + { + var (builder, logs) = CreateBuilder(); + var headers = builder.BuildHeaders(typeof(string), null, "q", "Publish"); + headers[HeaderKeys.Priority] = (byte)5; + + var props = builder.BuildBasicProperties(headers); + + Assert.True(props.IsPriorityPresent()); + Assert.Equal((byte)5, props.Priority); + Assert.Empty(logs); + } + + [Fact] + public void Priority_OutOfRangeInt_LogsValueAndType_ContinuesWithoutPriority() + { + var (builder, logs) = CreateBuilder(); + var headers = builder.BuildHeaders(typeof(string), null, "q", "Publish"); + headers[HeaderKeys.Priority] = 300; + + var props = builder.BuildBasicProperties(headers); + + Assert.False(props.IsPriorityPresent()); + var error = Assert.Single(logs, l => l.Level == LogLevel.Error); + Assert.Contains("300", error.Message); + Assert.Contains("Int32", error.Message); + } + + [Fact] + public void Priority_NonNumericString_LogsValueAndType_ContinuesWithoutPriority() + { + var (builder, logs) = CreateBuilder(); + var headers = builder.BuildHeaders(typeof(string), null, "q", "Publish"); + headers[HeaderKeys.Priority] = "abc"; + + var props = builder.BuildBasicProperties(headers); + + Assert.False(props.IsPriorityPresent()); + var error = Assert.Single(logs, l => l.Level == LogLevel.Error); + Assert.Contains("abc", error.Message); + Assert.Contains("System.String", error.Message); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/OutboundHeaderBuilderReservedHeaderWarningTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/OutboundHeaderBuilderReservedHeaderWarningTests.cs new file mode 100644 index 000000000..eac310757 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/OutboundHeaderBuilderReservedHeaderWarningTests.cs @@ -0,0 +1,85 @@ +using Microsoft.Extensions.Logging; +using Microsoft.Extensions.Time.Testing; +using Moq; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public sealed class OutboundHeaderBuilderReservedHeaderWarningTests +{ + private static (OutboundHeaderBuilder builder, List<(LogLevel Level, string Message)> logs) CreateBuilder() + { + var busConfig = new Mock(); + busConfig.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + + var queueConfig = new Mock(); + queueConfig.SetupGet(q => q.QueueName).Returns("source-q"); + + var captured = new List<(LogLevel, string)>(); + var logger = new Mock(); + logger.Setup(l => l.IsEnabled(It.IsAny())).Returns(true); + logger.Setup(l => l.Log( + It.IsAny(), + It.IsAny(), + It.IsAny(), + It.IsAny(), + (Func)It.IsAny())) + .Callback(new InvocationAction(invocation => + { + var level = (LogLevel)invocation.Arguments[0]; + var formatter = (Delegate)invocation.Arguments[4]; + var message = (string)formatter.DynamicInvoke(invocation.Arguments[2], invocation.Arguments[3])!; + captured.Add((level, message)); + })); + + return ( + new OutboundHeaderBuilder(busConfig.Object, queueConfig.Object, new FakeTimeProvider(), logger.Object), + captured); + } + + [Fact] + public void BuildHeaders_CallerSuppliesReservedHeader_FrameworkValueWins_AndWarns() + { + var (builder, logs) = CreateBuilder(); + var caller = new Dictionary + { + [HeaderKeys.DestinationAddress] = "user-supplied-dest", + [HeaderKeys.TypeName] = "user.spoof.type", + ["X-Custom"] = "ok", + }; + + var result = builder.BuildHeaders(typeof(string), caller, "framework-q", "Publish"); + + // Framework wins for reserved keys. + Assert.Equal("framework-q", result[HeaderKeys.DestinationAddress]); + Assert.Equal(typeof(string).FullName, result[HeaderKeys.TypeName]); + // Non-reserved header flows through. + Assert.Equal("ok", result["X-Custom"]); + + // One warning per overwritten reserved key, each containing the key name. + var warnings = logs.Where(l => l.Level == LogLevel.Warning).ToList(); + Assert.Equal(2, warnings.Count); + Assert.Contains(warnings, w => w.Message.Contains(HeaderKeys.DestinationAddress)); + Assert.Contains(warnings, w => w.Message.Contains(HeaderKeys.TypeName)); + } + + [Fact] + public void BuildHeaders_CallerSuppliesMessageId_PreservedNoWarning() + { + // MessageId is deliberately NOT in the overwrite set — caller-supplied (Bus's + // authoritative stamp) is preserved by the !ContainsKey check. + var (builder, logs) = CreateBuilder(); + var bus = new Dictionary + { + [HeaderKeys.MessageId] = "bus-stamped-id", + }; + + var result = builder.BuildHeaders(typeof(string), bus, "q", "Publish"); + + Assert.Equal("bus-stamped-id", result[HeaderKeys.MessageId]); + Assert.DoesNotContain(logs, l => l.Level == LogLevel.Warning); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/OutstandingPublisherConfirmationsTrackerTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/OutstandingPublisherConfirmationsTrackerTests.cs new file mode 100644 index 000000000..56e7eecff --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/OutstandingPublisherConfirmationsTrackerTests.cs @@ -0,0 +1,77 @@ +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Verifies that resolves a sane default permit limit for the +/// outstanding publisher-confirms rate limiter, and that operator overrides are respected. +/// Misconfigured values throw so they surface loudly rather than silently falling back. +/// +public class OutstandingPublisherConfirmationsTrackerTests +{ + [Fact] + public void ResolveMaxOutstandingPublishConfirms_DefaultsTo256_WhenSettingUnset() + { + var transport = new TransportConfiguration(); + + var permits = ProducerConnection.ResolveMaxOutstandingPublishConfirms(transport); + + Assert.Equal(256, permits); + } + + [Fact] + public void ResolveMaxOutstandingPublishConfirms_ReturnsExplicitValue_WhenSettingIsPositiveInt() + { + var transport = new TransportConfiguration(); + transport.SetClientSetting(RabbitMQSettingKeys.MaxOutstandingPublishConfirms, 16); + + var permits = ProducerConnection.ResolveMaxOutstandingPublishConfirms(transport); + + Assert.Equal(16, permits); + } + + [Theory] + [InlineData("256")] + [InlineData(256L)] + [InlineData((short)256)] + public void ResolveMaxOutstandingPublishConfirms_Coerces_WhenSettingIsConvertibleNumericOrString(object raw) + { + // Configuration sources (IConfiguration binders, env-var binders, JSON) routinely produce + // long, string, or other numeric types instead of int. Resolver matches the codebase + // convention (Convert.ToInt32) so binding succeeds without forcing the caller to cast. + var transport = new TransportConfiguration(); + transport.SetClientSetting(RabbitMQSettingKeys.MaxOutstandingPublishConfirms, raw); + + var permits = ProducerConnection.ResolveMaxOutstandingPublishConfirms(transport); + + Assert.Equal(256, permits); + } + + [Fact] + public void ResolveMaxOutstandingPublishConfirms_Throws_WhenSettingIsUnconvertible() + { + var transport = new TransportConfiguration(); + transport.SetClientSetting(RabbitMQSettingKeys.MaxOutstandingPublishConfirms, "not-a-number"); + + var ex = Assert.Throws( + () => ProducerConnection.ResolveMaxOutstandingPublishConfirms(transport)); + + Assert.Contains(RabbitMQSettingKeys.MaxOutstandingPublishConfirms, ex.Message); + Assert.Contains("convertible to Int32", ex.Message); + } + + [Fact] + public void ResolveMaxOutstandingPublishConfirms_Throws_WhenSettingIsNonPositive() + { + var transport = new TransportConfiguration(); + transport.SetClientSetting(RabbitMQSettingKeys.MaxOutstandingPublishConfirms, 0); + + var ex = Assert.Throws( + () => ProducerConnection.ResolveMaxOutstandingPublishConfirms(transport)); + + Assert.Contains(RabbitMQSettingKeys.MaxOutstandingPublishConfirms, ex.Message); + Assert.Contains("must be positive", ex.Message); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ProducerConfirmTimeoutMetricsTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerConfirmTimeoutMetricsTests.cs new file mode 100644 index 000000000..00fdbe548 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerConfirmTimeoutMetricsTests.cs @@ -0,0 +1,145 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Diagnostics; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.UnitTests.Diagnostics; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Asserts the counter increments at the +/// remap site in Producer.PublishWithTimeoutAsync. +/// Uses the same hanging-channel pattern as +/// but with a much shorter timeout (100ms) so the test completes in well under a second. +/// +/// +/// Serial collection because (a) the SendAsync test filters the global meter on the literal +/// "<empty>" destination sentinel — a future test class that emits the same +/// counter with an empty exchange would poison Assert.Single under parallel xUnit scheduling — +/// and (b) the 100ms timeout window is itself sensitive to thread-pool contention from +/// parallel tests. Aligns with the project's existing timing-sensitive collection. +/// +[Collection(SerialConcurrencyCollection.Name)] +public sealed class ProducerConfirmTimeoutMetricsTests +{ + [Fact] + public async Task PublishAsync_WhenBasicPublishHangs_RemapTimeoutEmitsConfirmTimeoutCounter() + { + // Per-test message type → unique exchange name so the MetricCollector tag-filter + // isolates this test's emissions from any others running in parallel. + var exchangeName = ServiceConnect.Services.MessageTypeExchangeName.From(typeof(ConfirmTimeoutProbeMessage)); + using var collector = new MetricCollector("messaging.destination.name", exchangeName); + + await using var producer = BuildProducerWithHangingChannel(); + + // The hanging channel guarantees BasicPublishAsync never resolves; PublishWithTimeoutAsync's + // linked CTS fires after 100ms and the OperationCanceledException is remapped to TimeoutException. + await Assert.ThrowsAsync(() => + producer.PublishAsync(typeof(ConfirmTimeoutProbeMessage), new byte[] { 1, 2, 3 })); + + var record = Assert.Single(collector.GetLongRecords(MetricNames.PublishConfirmTimeouts)); + Assert.Equal(1, record.Value); + Assert.Equal("rabbitmq", record.GetTag("messaging.system")); + Assert.Equal(exchangeName, record.GetTag("messaging.destination.name")); + } + + [Fact] + public async Task SendAsync_WhenBasicPublishHangs_RemapTimeoutEmitsConfirmTimeoutCounterWithRoutingKey() + { + // SendAsync passes exchange="" and routes via the queue name on routingKey. The metric + // now prefers the routingKey when exchange is empty so operators see *which* queue + // stalled rather than a placeholder; the prior "" sentinel obscured per-queue + // alerting. + using var collector = new MetricCollector("messaging.destination.name", "send-confirm-timeout-q"); + + await using var producer = BuildProducerWithHangingChannel(); + + await Assert.ThrowsAsync(() => + producer.SendAsync("send-confirm-timeout-q", typeof(ConfirmTimeoutProbeMessage), new byte[] { 1, 2, 3 })); + + var record = Assert.Single(collector.GetLongRecords(MetricNames.PublishConfirmTimeouts)); + Assert.Equal(1, record.Value); + Assert.Equal("rabbitmq", record.GetTag("messaging.system")); + Assert.Equal("publish", record.GetTag("messaging.operation.type")); + Assert.Equal("send-confirm-timeout-q", record.GetTag("messaging.destination.name")); + } + + private static Producer BuildProducerWithHangingChannel() + { + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + + // Short publish timeout so the test resolves quickly. Tight retry budget so a remapped + // TimeoutException surfaces immediately (not retriable per IsRetriablePublishException). + var settings = new Dictionary + { + [RabbitMQSettingKeys.PublishTimeout] = TimeSpan.FromMilliseconds(100), + [RabbitMQSettingKeys.RetryCount] = (ushort)0, + [RabbitMQSettingKeys.RetrySeconds] = (ushort)0, + }; + transport.SetupGet(t => t.ClientSettings).Returns(settings); + + var queue = new Mock(); + queue.SetupGet(q => q.QueueName).Returns("confirm-timeout-q"); + + var bus = new Mock(); + bus.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + + // BasicPublishAsync hangs until the caller's CT (the linked timeout CTS) fires — + // deterministic timeout trigger without depending on broker behaviour. + var hangingChannel = new Mock(); + hangingChannel.SetupGet(c => c.IsOpen).Returns(true); + hangingChannel + .Setup(c => c.ExchangeDeclareAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny>(), false, false, It.IsAny())) + .Returns(Task.CompletedTask); + hangingChannel + .Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns((string _, string _, bool _, BasicProperties _, ReadOnlyMemory _, CancellationToken ct) => + new ValueTask(Task.Delay(Timeout.Infinite, ct))); + + var producer = new Producer(transport.Object, queue.Object, bus.Object, NullLogger.Instance); + + var fakeConnection = new Mock(); + fakeConnection.SetupGet(c => c.IsOpen).Returns(true); + fakeConnection + .Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(hangingChannel.Object); + producer.CreateConnectionForTests = (_, _, _, _) => Task.FromResult(fakeConnection.Object); + + return producer; + } + + [Fact] + public async Task PublishAsync_WhenBasicPublishHangs_DurationMetricOmitsErrorType() + { + // The dedicated publish_confirm.timeout counter is the authoritative signal for + // confirm-timeout publishes (the message may still have been delivered). The + // messaging.publish.duration metric must NOT also carry error.type=timeout — that + // would double-count the confirm-timeout as a definite failure on dashboards. + var exchangeName = ServiceConnect.Services.MessageTypeExchangeName.From(typeof(ConfirmTimeoutDurationProbeMessage)); + using var collector = new MetricCollector("messaging.destination.name", exchangeName); + + await using var producer = BuildProducerWithHangingChannel(); + + await Assert.ThrowsAsync(() => + producer.PublishAsync(typeof(ConfirmTimeoutDurationProbeMessage), new byte[] { 1, 2, 3 })); + + var duration = Assert.Single(collector.GetDoubleRecords(MetricNames.PublishDuration)); + Assert.Equal("rabbitmq", duration.GetTag("messaging.system")); + Assert.Equal(exchangeName, duration.GetTag("messaging.destination.name")); + // error.type must be ABSENT for confirm-timeout — the dedicated PublishConfirmTimeouts + // counter is the authoritative failure signal. + Assert.Null(duration.GetTag("error.type")); + } + + private sealed class ConfirmTimeoutProbeMessage { } + private sealed class ConfirmTimeoutDurationProbeMessage { } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ProducerConnectionDisposeTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerConnectionDisposeTests.cs new file mode 100644 index 000000000..7732658bb --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerConnectionDisposeTests.cs @@ -0,0 +1,127 @@ +using System.Diagnostics; +using System.Reflection; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.UnitTests; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +[Collection(SerialConcurrencyCollection.Name)] +public sealed class ProducerConnectionDisposeTests +{ + private static ProducerConnection CreateProducerConnection() + { + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary()); + + return new ProducerConnection(transport.Object, NullLogger.Instance); + } + + [Fact] + public async Task EnsureConnectedAsync_AfterMarkResetRequired_CancellationTokenCancelled_ReturnsWithinBoundedTime() + { + // Arrange: construct a ProducerConnection, acquire its _connectionSemaphore in a + // background task and hold it for longer than any reasonable test timeout, then + // mark reset required, call EnsureConnectedAsync (which now drives the slow + // teardown+create under semaphore — the same code path the prior ReconnectAsync + // exercised), cancel the token quickly, and assert the call returns within ~2s. + // The invariant under test: a wedged in-flight create cannot block the cancellation + // token's delivery into a queued semaphore-wait. + var producerConnection = CreateProducerConnection(); + + // Flip the reset flag so EnsureConnectedAsync takes the semaphore-acquiring branch + // (rather than the lock-free fast path that returns when IsHealthy()). + producerConnection.MarkResetRequired(); + + var semaphoreField = typeof(ProducerConnection).GetField( + "_connectionSemaphore", + BindingFlags.NonPublic | BindingFlags.Instance); + var semaphore = (SemaphoreSlim)semaphoreField!.GetValue(producerConnection)!; + + using var holderRelease = new ManualResetEventSlim(false); + var holderTask = Task.Run(async () => + { + await semaphore.WaitAsync().ConfigureAwait(false); + try { holderRelease.Wait(); } + finally { semaphore.Release(); } + }); + + // Allow the holder task a moment to acquire the semaphore. + await Task.Delay(50); + + using var cts = new CancellationTokenSource(); + cts.CancelAfter(TimeSpan.FromMilliseconds(50)); + + var sw = Stopwatch.StartNew(); + // EnsureConnectedAsync's WaitAsync(cts.Token) on _connectionSemaphore should observe + // the cancellation and surface OperationCanceledException promptly, well before any + // 30s timeout the production path might honour. + await Assert.ThrowsAnyAsync(() => + producerConnection.EnsureConnectedAsync(cts.Token)); + sw.Stop(); + + holderRelease.Set(); + await holderTask; + + Assert.True(sw.Elapsed < TimeSpan.FromSeconds(2), + $"EnsureConnectedAsync took {sw.Elapsed} — should have returned within ~50ms after cancellation, well under 2s."); + } + + [Fact] + public async Task DisposeDuringCreate_DoesNotOrphanConnection() + { + // Set up: stage a CreateConnectionForTests that takes long enough for Close to start + // and time out its semaphore wait. After the create returns, _disposed is already 1 + // and the just-created connection should be torn down rather than assigned. + var producerConnection = CreateProducerConnection(); + + // Track whether the just-created connection's Dispose / DisposeAsync gets called. + var disposeCount = 0; + var fakeConnection = new Mock(); + // IsOpen=false avoids the need to mock CloseAsync's full overload set; we only need + // to verify Dispose() runs against the just-built instance. + fakeConnection.SetupGet(c => c.IsOpen).Returns(false); + fakeConnection.Setup(c => c.Dispose()).Callback(() => Interlocked.Increment(ref disposeCount)); + // Also need to mock CreateChannelAsync because CreateConnectionAsync calls it after the connection is built. + var fakeChannel = new Mock(); + fakeChannel.SetupGet(c => c.IsOpen).Returns(false); + fakeConnection + .Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(fakeChannel.Object); + + var createReleased = new TaskCompletionSource(); + var createInvoked = new TaskCompletionSource(); + producerConnection.CreateConnectionForTests = async (_, _, _, _) => + { + createInvoked.TrySetResult(); + await createReleased.Task; // hold here until the test releases + return fakeConnection.Object; + }; + + // Begin a connection create on a worker task. EnsureConnectedAsync acquires the + // semaphore and calls into CreateConnectionForTests, which blocks until createReleased. + var ensureTask = producerConnection.EnsureConnectedAsync(CancellationToken.None); + await createInvoked.Task; + + // Now drive Close with a tight timeout — it cannot acquire the semaphore (the create + // holds it via the Retry loop's awaitable wait). Close sets _disposed and forces teardown + // (which is a no-op since _connection/_model are still null). + var closeTask = producerConnection.CloseAsync(TimeSpan.FromMilliseconds(50)); + await closeTask; + + // Allow the create to complete. The post-assign disposed check should detect _disposed + // and tear down the just-built fakeConnection rather than orphaning it. + createReleased.TrySetResult(); + + // ensureTask may complete or throw; both are acceptable post-dispose. Wait for it. + try { await ensureTask; } + catch (ObjectDisposedException) { /* expected: post-assign check throws this */ } + catch (Exception) { /* other races acceptable as long as fakeConnection.Dispose was called */ } + + Assert.Equal(1, disposeCount); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ProducerConnectionEnsureExchangeDeclaredTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerConnectionEnsureExchangeDeclaredTests.cs new file mode 100644 index 000000000..5dac1b756 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerConnectionEnsureExchangeDeclaredTests.cs @@ -0,0 +1,39 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Verifies that throws +/// when _model is null at the point of +/// the declare call, rather than a . +/// +public sealed class ProducerConnectionEnsureExchangeDeclaredTests +{ + private static ProducerConnection CreateProducerConnection() + { + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary()); + + return new ProducerConnection(transport.Object, NullLogger.Instance); + } + + [Fact] + public async Task EnsureExchangeDeclaredAsync_WhenChannelIsNull_ThrowsChannelTransientException() + { + // _model is null at construction (no initializer) — same observable state left by + // TearDownChannelAndConnectionAsync. That covers both the never-connected case + // and the torn-down-between-snapshot-and-declare race: TryGetChannel() returns + // null in both, and the production code must surface ChannelTransientException + // rather than NRE so the retry classifier in ExecuteRetryingPublishAsync skips + // MarkResetRequired. + var connection = CreateProducerConnection(); + + await Assert.ThrowsAsync( + () => connection.EnsureExchangeDeclaredAsync("test-exchange", "fanout", CancellationToken.None)); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ProducerConnectionRateLimiterLifecycleTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerConnectionRateLimiterLifecycleTests.cs new file mode 100644 index 000000000..a829f5afc --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerConnectionRateLimiterLifecycleTests.cs @@ -0,0 +1,133 @@ +using System.Reflection; +using System.Threading.RateLimiting; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +[Collection(SerialConcurrencyCollection.Name)] +public sealed class ProducerConnectionRateLimiterLifecycleTests +{ + private static ProducerConnection CreateProducerConnection() + { + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + // Empty settings → defaults; PublisherAcknowledgements defaults to true so the + // limiter path inside CreateConnectionAsync fires. + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary()); + return new ProducerConnection(transport.Object, NullLogger.Instance); + } + + private static (Mock, Mock) StubConnectionAndChannel() + { + var channel = new Mock(); + channel.SetupGet(c => c.IsOpen).Returns(true); + var connection = new Mock(); + connection.SetupGet(c => c.IsOpen).Returns(true); + connection + .Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(channel.Object); + return (connection, channel); + } + + private static FieldInfo LimiterField => + typeof(ProducerConnection).GetField("_publisherRateLimiter", + BindingFlags.Instance | BindingFlags.NonPublic) + ?? throw new InvalidOperationException("Field _publisherRateLimiter not found on ProducerConnection."); + + [Fact] + public async Task ReconnectCycle_DisposesPriorLimiterAndInstallsFresh() + { + // Each CreateConnectionAsync allocates a ConcurrencyLimiter and hands it to + // RabbitMQ.Client; the driver does not own user-supplied limiters. Without the + // dispose lifecycle on _publisherRateLimiter, every reconnect leaks one limiter. + var producer = CreateProducerConnection(); + + var (connection, _) = StubConnectionAndChannel(); + producer.CreateConnectionForTests = (_, _, _, _) => Task.FromResult(connection.Object); + + await producer.EnsureConnectedAsync(CancellationToken.None); + + var firstLimiter = (RateLimiter?)LimiterField.GetValue(producer); + Assert.NotNull(firstLimiter); + + // Force a reconnect: MarkResetRequired flips the flag so the next + // EnsureConnectedAsync drives a teardown + create cycle. + producer.MarkResetRequired(); + await producer.EnsureConnectedAsync(CancellationToken.None); + + var secondLimiter = (RateLimiter?)LimiterField.GetValue(producer); + Assert.NotNull(secondLimiter); + Assert.NotSame(firstLimiter, secondLimiter); + + // The first limiter must be disposed: a stale limiter is the leak we are closing. + // ConcurrencyLimiter.AttemptAcquire raises ObjectDisposedException after Dispose. + Assert.Throws(() => firstLimiter!.AttemptAcquire(0)); + } + + [Fact] + public async Task CloseAsync_DisposesCurrentLimiterAndClearsField() + { + var producer = CreateProducerConnection(); + + var (connection, _) = StubConnectionAndChannel(); + producer.CreateConnectionForTests = (_, _, _, _) => Task.FromResult(connection.Object); + + await producer.EnsureConnectedAsync(CancellationToken.None); + + var liveLimiter = (RateLimiter?)LimiterField.GetValue(producer); + Assert.NotNull(liveLimiter); + + await producer.CloseAsync(TimeSpan.FromSeconds(5)); + + // After teardown the field is cleared so a fresh CreateConnectionAsync can install + // a new limiter without observing a stale reference. + Assert.Null(LimiterField.GetValue(producer)); + // And the live limiter at close time was disposed — not just nulled. + Assert.Throws(() => liveLimiter!.AttemptAcquire(0)); + } + + [Fact] + public async Task RepeatedReconnects_KeepLimiterCountBoundedAtOne() + { + // Stress: many reconnects must not accumulate live limiters. We track each limiter + // installed across cycles; at every step exactly one should be alive (the current + // _publisherRateLimiter) and all priors should be Disposed. + var producer = CreateProducerConnection(); + + var (connection, _) = StubConnectionAndChannel(); + producer.CreateConnectionForTests = (_, _, _, _) => Task.FromResult(connection.Object); + + await producer.EnsureConnectedAsync(CancellationToken.None); + var observed = new List + { + (RateLimiter)LimiterField.GetValue(producer)!, + }; + + for (int i = 0; i < 8; i++) + { + producer.MarkResetRequired(); + await producer.EnsureConnectedAsync(CancellationToken.None); + observed.Add((RateLimiter)LimiterField.GetValue(producer)!); + } + + // Final state: 9 distinct limiters created (1 + 8), only the last one is live. + Assert.Equal(9, observed.Distinct().Count()); + for (int i = 0; i < observed.Count - 1; i++) + { + Assert.Throws(() => observed[i].AttemptAcquire(0)); + } + // The current (last) limiter is still live. + var currentLease = observed[^1].AttemptAcquire(0); + Assert.NotNull(currentLease); + currentLease.Dispose(); + + await producer.CloseAsync(TimeSpan.FromSeconds(5)); + // After dispose, the last one is also gone. + Assert.Throws(() => observed[^1].AttemptAcquire(0)); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ProducerConnectionStaleChannelTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerConnectionStaleChannelTests.cs new file mode 100644 index 000000000..595edad1f --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerConnectionStaleChannelTests.cs @@ -0,0 +1,112 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Verifies that tears down a +/// stale connection when the channel was closed by the broker (an unsolicited +/// Channel.Close from queue deletion, policy violation, or mirror failover) without +/// any in-flight publisher having called MarkResetRequired. +/// +/// Without the bare-close teardown trigger, the second EnsureConnectedAsync would +/// observe _resetRequired == 0 && !IsHealthy(), skip teardown, and fall +/// through to CreateConnectionAsync, which overwrites _connection +/// without disposing the prior reference — leaking one AMQP connection per broker- +/// side channel close until GC finalises it. +/// +[Collection(SerialConcurrencyCollection.Name)] +public sealed class ProducerConnectionStaleChannelTests +{ + private static ProducerConnection CreateProducerConnection() + { + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary + { + [RabbitMQSettingKeys.RetryCount] = (ushort)1, + [RabbitMQSettingKeys.RetrySeconds] = (ushort)0, + }); + + return new ProducerConnection(transport.Object, NullLogger.Instance); + } + + [Fact] + public async Task EnsureConnectedAsync_WhenChannelClosedWithoutResetMark_DisposesPriorConnectionBeforeReplacement() + { + // Arrange: a ProducerConnection that has completed one successful create. The first + // mock IConnection's IsOpen toggles via a backing field so the test can flip the + // channel's IsOpen to false (simulating a broker-driven Channel.Close) and observe + // that the next EnsureConnectedAsync disposes the prior IConnection before assigning + // a replacement. + var producerConnection = CreateProducerConnection(); + + var firstChannelOpen = true; + var firstChannel = new Mock(); + firstChannel.SetupGet(c => c.IsOpen).Returns(() => firstChannelOpen); + + var firstConnectionDisposeCount = 0; + var firstConnection = new Mock(); + // IsOpen=false on teardown skips the broker CloseAsync path (which is an extension + // method on IConnection that Moq cannot intercept) and falls straight through to + // Dispose(), which is what the leak-avoidance invariant turns on. + firstConnection.SetupGet(c => c.IsOpen).Returns(false); + firstConnection + .Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(firstChannel.Object); + firstConnection + .Setup(c => c.Dispose()) + .Callback(() => Interlocked.Increment(ref firstConnectionDisposeCount)); + + var secondChannel = new Mock(); + secondChannel.SetupGet(c => c.IsOpen).Returns(true); + + var secondConnection = new Mock(); + secondConnection.SetupGet(c => c.IsOpen).Returns(true); + secondConnection + .Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(secondChannel.Object); + + var createCallCount = 0; + // Verifies the teardown order invariant: on the second create call, the prior + // connection must already have had Dispose() invoked. Without the bare-close + // teardown trigger, this check would fail because CreateConnectionAsync would + // overwrite _connection while the first reference still held an undisposed handle. + var firstConnectionDisposeCountAtSecondCreate = -1; + producerConnection.CreateConnectionForTests = (_, _, _, _) => + { + var call = Interlocked.Increment(ref createCallCount); + if (call == 1) + { + return Task.FromResult(firstConnection.Object); + } + + firstConnectionDisposeCountAtSecondCreate = Volatile.Read(ref firstConnectionDisposeCount); + return Task.FromResult(secondConnection.Object); + }; + + // Act: initial create. + await producerConnection.EnsureConnectedAsync(CancellationToken.None); + Assert.Equal(1, createCallCount); + Assert.True(producerConnection.IsHealthy()); + + // Simulate broker-driven Channel.Close: the channel reports closed but no publisher + // has called MarkResetRequired. _resetRequired remains 0. + firstChannelOpen = false; + Assert.False(producerConnection.IsHealthy()); + Assert.False(producerConnection.ResetRequiredForTests); + + // Second call must tear down the stale connection before creating the replacement. + await producerConnection.EnsureConnectedAsync(CancellationToken.None); + + // Assert: a second create happened, AND at the moment the second create ran the + // first connection had already been disposed exactly once. + Assert.Equal(2, createCallCount); + Assert.Equal(1, firstConnectionDisposeCountAtSecondCreate); + Assert.Equal(1, firstConnectionDisposeCount); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ProducerDisposeTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerDisposeTests.cs new file mode 100644 index 000000000..eea7ebfeb --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerDisposeTests.cs @@ -0,0 +1,325 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Verifies that always tears down the channel and +/// connection even when _publishLock cannot be acquired within the dispose timeout. +/// +public class ProducerDisposeTests +{ + private static Producer CreateProducer() + { + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary()); + + var queue = new Mock(); + queue.SetupGet(q => q.QueueName).Returns("q"); + + var bus = new Mock(); + bus.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + + return new Producer(transport.Object, queue.Object, bus.Object, NullLogger.Instance); + } + + private static Producer CreateProducerWithRetrySettings(ushort retryCount, ushort retrySeconds) + { + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary + { + [RabbitMQSettingKeys.RetryCount] = retryCount, + [RabbitMQSettingKeys.RetrySeconds] = retrySeconds, + }); + + var queue = new Mock(); + queue.SetupGet(q => q.QueueName).Returns("q"); + + var bus = new Mock(); + bus.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + + return new Producer(transport.Object, queue.Object, bus.Object, NullLogger.Instance); + } + + private static void SetField(Producer producer, string fieldName, T value) => + ProducerInternals.SetField(producer, fieldName, value); + + private static T GetField(Producer producer, string fieldName) => + ProducerInternals.GetField(producer, fieldName); + + [Fact] + public async Task DisposeAsync_WhenPublishLockHeld_StillDisposesChannelAndConnection() + { + // Arrange + var channel = new Mock(); + channel.SetupGet(c => c.IsOpen).Returns(true); + // IChannel.CloseAsync has a ushort/string/bool/CancellationToken overload that + // the zero-arg extension method delegates to — mock that signature. + channel.Setup(c => c.CloseAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var connection = new Mock(); + connection.SetupGet(c => c.IsOpen).Returns(true); + connection.Setup(c => c.CloseAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var producer = CreateProducer(); + + // Inject mock channel/connection directly, bypassing real RabbitMQ. + SetField(producer, "_model", channel.Object); + SetField(producer, "_connection", connection.Object); + SetField(producer, "_connected", true); + + // Use the test-seam to shorten the dispose timeout so the test completes quickly + // rather than waiting the production 30 seconds. + SetField(producer, "DisposeTimeoutForTests", TimeSpan.FromMilliseconds(50)); + + // Simulate a stuck publish: hold _publishLock so DisposeAsync cannot acquire it + // within the short timeout, triggering the "lock timeout" path. + var publishLock = GetField(producer, "_publishLock"); + await publishLock.WaitAsync(); // take the lock — dispose will time out waiting + + // Act — should complete in ~50ms (timeout) rather than hanging. + await producer.DisposeAsync(); + + // The semaphore is not disposed by DisposeAsync, so Release() succeeds cleanly here. + // This simulates the in-flight publisher's finally block completing its unwind. + publishLock.Release(); + + // Assert — channel and connection must always be closed even though the lock timed out. + channel.Verify(c => c.CloseAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny()), Times.Once); + connection.Verify(c => c.CloseAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny()), Times.Once); + } + + [Fact] + public async Task DisposeAsync_WhenBothLocksHeld_RespectsSharedBudgetNotDoubled() + { + // Arrange — wire up mock channel/connection so teardown succeeds quickly. + var channel = new Mock(); + channel.SetupGet(c => c.IsOpen).Returns(true); + channel.Setup(c => c.CloseAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var connection = new Mock(); + connection.SetupGet(c => c.IsOpen).Returns(true); + connection.Setup(c => c.CloseAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var producer = CreateProducer(); + SetField(producer, "_model", channel.Object); + SetField(producer, "_connection", connection.Object); + SetField(producer, "_connected", true); + + var disposeTimeout = TimeSpan.FromMilliseconds(150); + SetField(producer, "DisposeTimeoutForTests", (TimeSpan?)disposeTimeout); + + // Hold BOTH semaphores so each WaitAsync(timeout) must time out. + var publishLock = GetField(producer, "_publishLock"); + var connectionSemaphore = GetField(producer, "_connectionSemaphore"); + await publishLock.WaitAsync(); + await connectionSemaphore.WaitAsync(); + + // Act — measure dispose wall time. + var stopwatch = System.Diagnostics.Stopwatch.StartNew(); + await producer.DisposeAsync(); + stopwatch.Stop(); + + // The semaphores are not disposed by DisposeAsync, so Release() succeeds cleanly. + // This simulates in-flight publishers completing their finally blocks after teardown. + publishLock.Release(); + connectionSemaphore.Release(); + + // The invariant under test: both lock waits share ONE 150ms budget, not + // two stacked 150ms budgets. If they were stacked (the regression we're + // guarding against) the elapsed wall time would be ≥ 300ms; sharing a + // budget caps it well below that. The bound is 500ms rather than the + // tighter ~250ms that "shared budget + jitter" would allow because the + // test runs alongside other parallel test classes (and inside a CPU- + // constrained cgroup on this dev machine), and Stopwatch is wall-clock + // — scheduler stalls can easily add 100–300ms of jitter under load. + // 50ms lower bound is a sanity check that the timers actually ran + // (a pathological fast return would be near-zero). + Assert.InRange(stopwatch.Elapsed, + TimeSpan.FromMilliseconds(50), + TimeSpan.FromMilliseconds(500)); + } + + [Fact] + public async Task DisposeAsync_DoesNotDisposeSemaphores_AllowsInFlightPublisherCleanRelease() + { + // Arrange — set up a producer with mock channel/connection. + var channel = new Mock(); + channel.SetupGet(c => c.IsOpen).Returns(true); + channel.Setup(c => c.CloseAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var connection = new Mock(); + connection.SetupGet(c => c.IsOpen).Returns(true); + connection.Setup(c => c.CloseAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var producer = CreateProducer(); + SetField(producer, "_model", channel.Object); + SetField(producer, "_connection", connection.Object); + SetField(producer, "_connected", true); + SetField(producer, "DisposeTimeoutForTests", (TimeSpan?)TimeSpan.FromMilliseconds(50)); + + // Simulate an in-flight publisher holding _publishLock — dispose times out + // waiting for it. + var publishLock = GetField(producer, "_publishLock"); + await publishLock.WaitAsync(); + + // Act + await producer.DisposeAsync(); + + // Assert — the in-flight publisher's finally block runs publishLock.Release(). + // The semaphore must remain alive so this Release() succeeds rather than + // throwing ObjectDisposedException out of the publisher's unwind path. + var ex = Record.Exception(() => publishLock.Release()); + Assert.Null(ex); + } + + [Fact] + public async Task PublishAsync_WhenDisposeRanWhileWaitingForLock_ThrowsObjectDisposedException() + { + // Arrange — producer with mock channel; simulate "publisher already past + // EnsureConnectedAsync but still waiting on _publishLock" by holding the + // lock from the test, then asynchronously kicking off PublishAsync. + var channel = new Mock(); + channel.SetupGet(c => c.IsOpen).Returns(true); + channel.Setup(c => c.CloseAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var connection = new Mock(); + connection.SetupGet(c => c.IsOpen).Returns(true); + connection.Setup(c => c.CloseAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var producer = CreateProducer(); + SetField(producer, "_model", channel.Object); + SetField(producer, "_connection", connection.Object); + SetField(producer, "_connected", true); + SetField(producer, "DisposeTimeoutForTests", (TimeSpan?)TimeSpan.FromMilliseconds(50)); + + var publishLock = GetField(producer, "_publishLock"); + await publishLock.WaitAsync(); // hold the lock; publisher will queue behind us + + // Kick off PublishAsync — it passes EnsureConnectedAsync (since _connected = true + // and _disposed = 0) and then blocks on _publishLock.WaitAsync. + var publishTask = producer.PublishAsync(typeof(TestPayload), new byte[] { 1, 2, 3 }); + + // Run DisposeAsync — sets _disposed = 1, waits for the lock with the short + // test timeout, gives up, tears down channel/connection, releases nothing + // (publishLockAcquired = false), exits. + await producer.DisposeAsync(); + + // Now release the lock the test was holding — the publisher acquires it, + // observes _disposed = 1, and must throw ObjectDisposedException rather + // than NRE on null _model. + publishLock.Release(); + + await Assert.ThrowsAsync(() => publishTask); + } + + [Fact] + public async Task PublishAsync_WhenDisposedMidRetry_AbortsPromptlyInsteadOfBurningRetryBudget() + { + // Regression guard: when DisposeAsync flips _disposed while a publisher's retry loop + // is mid-Task.Delay (the lock is released between attempts), the next attempt's + // EnsureConnectedAsync throws ObjectDisposedException. That exception MUST surface + // immediately. Treating ObjectDisposedException as retriable would burn the full + // retryCount * retrySeconds budget (default 60 * 10s = 10 min) against a permanently + // dead instance. + // + // Test parameters: retryCount=60, retrySeconds=1 — without the explicit disposed + // catch arm this could take up to ~60s; with it the call returns within one + // Task.Delay window (~1s) plus dispose teardown. + var producer = CreateProducerWithRetrySettings(retryCount: 60, retrySeconds: 1); + + // Pre-seed a healthy mock channel so the first publisher iteration's + // EnsureConnectedAsync is a fast lock-free fast-path (no CreateConnectionAsync, + // no inner Retry loop). The publish itself then fails with a retriable exception, + // sending the publisher into the inter-attempt Task.Delay window. + var publishStarted = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var channel = new Mock(); + channel.SetupGet(c => c.IsOpen).Returns(true); + channel.Setup(c => c.ExchangeDeclareAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny?>(), It.IsAny(), It.IsAny(), + It.IsAny())) + .Returns(Task.CompletedTask); + channel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns(() => + { + publishStarted.TrySetResult(); + throw new InvalidOperationException("simulated retriable publish failure"); + }); + // Mock channel close so dispose-side teardown does not hit a strict-mock invocation. + channel.Setup(c => c.CloseAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + SetField(producer, "_model", channel.Object); + SetField(producer, "_connected", true); + + // Keep DisposeAsync responsive — its lock-wait budget should not dominate the observed + // wall clock. + SetField(producer, "DisposeTimeoutForTests", (TimeSpan?)TimeSpan.FromMilliseconds(50)); + + var publishTask = Task.Run(() => + producer.PublishAsync(typeof(TestPayload), new byte[] { 1, 2, 3 })); + + // Wait for the first BasicPublishAsync invocation. The publisher then enters the + // catch-when arm: MarkResetRequired + Task.Delay(retrySeconds=1s). + await publishStarted.Task; + + // Small buffer so the publisher is definitely inside Task.Delay rather than mid-throw. + await Task.Delay(100); + + // Dispose: flips _disposed. The next iteration's EnsureConnectedAsync (which runs + // OUTSIDE _publishLock) will throw ObjectDisposedException from its disposed pre-check. + // Note: DisposeAsync also runs concurrently with whatever Task.Delay the publisher is + // still in; that delay shares the publisher's caller token, which is the publish task's + // ambient token (CancellationToken.None here), so the delay completes naturally. + await producer.DisposeAsync(); + + var sw = System.Diagnostics.Stopwatch.StartNew(); + var ex = await Assert.ThrowsAnyAsync(async () => await publishTask); + sw.Stop(); + + // Tolerance: one full retrySeconds=1s for the inter-attempt Task.Delay window the + // publisher may already be inside, plus generous headroom for scheduler jitter under + // the cgroup CPU quota. Without the disposed-catch short-circuit this would be ~60s; + // anything < 5s proves the disposed catch fired and short-circuited the retry loop. + Assert.True(sw.Elapsed < TimeSpan.FromSeconds(5), + $"Publish task took {sw.Elapsed} after dispose; without the disposed catch this would be ~60s. " + + "ObjectDisposedException must short-circuit the retry loop, not be treated as retriable."); + + // The surfaced exception is ObjectDisposedException — directly from EnsureConnectedAsync's + // disposed pre-check, propagated by the new explicit catch arm. + Assert.IsType(ex); + } + + // Minimal payload type for PublishAsync's `Type` argument; PublishAsync only uses + // it to compute an exchange name, so any class works. + private sealed class TestPayload { } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ProducerEnsureConnectedTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerEnsureConnectedTests.cs new file mode 100644 index 000000000..9584e306a --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerEnsureConnectedTests.cs @@ -0,0 +1,87 @@ +using System.Reflection; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Verifies that does not short-circuit reconnect when +/// _connected is true but the underlying _model channel is closed. +/// A broker drop closes the channel without clearing _connected; the +/// fast-path early-exit must check channel liveness, not only the flag. +/// +public class ProducerEnsureConnectedTests +{ + private static Producer CreateProducer() + { + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + + var settings = new Dictionary + { + [RabbitMQSettingKeys.RetryCount] = (ushort)1, + [RabbitMQSettingKeys.RetrySeconds] = (ushort)0, + }; + transport.SetupGet(t => t.ClientSettings).Returns(settings); + + var queue = new Mock(); + queue.SetupGet(q => q.QueueName).Returns("q"); + + var bus = new Mock(); + bus.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + + return new Producer(transport.Object, queue.Object, bus.Object, NullLogger.Instance); + } + + private static void SetField(Producer producer, string fieldName, T value) => + ProducerInternals.SetField(producer, fieldName, value); + + [Fact] + public async Task EnsureConnectedAsync_WhenConnectedFlagTrueButChannelClosed_AttemptsReconnect() + { + // Arrange: producer that believes it is connected but whose channel has been closed + // (simulates a broker drop after initial connect). + await using var producer = CreateProducer(); + + var closedChannel = new Mock(); + closedChannel.SetupGet(c => c.IsOpen).Returns(false); + + SetField(producer, "_connected", true); + SetField(producer, "_model", closedChannel.Object); + + int reconnectCallCount = 0; + + var healthyChannel = new Mock(); + healthyChannel.SetupGet(c => c.IsOpen).Returns(true); + + var freshConnection = new Mock(); + freshConnection + .Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(healthyChannel.Object); + freshConnection.SetupGet(c => c.IsOpen).Returns(true); + + producer.CreateConnectionForTests = (_, _, _, _) => + { + Interlocked.Increment(ref reconnectCallCount); + return Task.FromResult(freshConnection.Object); + }; + + // Act: invoke the private EnsureConnectedAsync(CancellationToken) overload directly. + var method = typeof(Producer).GetMethod( + "EnsureConnectedAsync", + BindingFlags.Instance | BindingFlags.NonPublic, + binder: null, + types: [typeof(CancellationToken)], + modifiers: null)!; + + await (Task)method.Invoke(producer, [CancellationToken.None])!; + + // Assert: the connection factory hook was called, proving reconnect was attempted + // rather than skipping through the early-exit on the stale _connected flag. + Assert.Equal(1, reconnectCallCount); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ProducerExchangeNameCacheTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerExchangeNameCacheTests.cs new file mode 100644 index 000000000..8bbc5a468 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerExchangeNameCacheTests.cs @@ -0,0 +1,58 @@ +using System.Collections.Concurrent; +using System.Reflection; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Verifies that the Producer exchange-name cache is keyed on FullName, not +/// AssemblyQualifiedName. Keying on AQN causes duplicate cache entries when +/// assembly version or type forwarding changes AQN while FullName stays the +/// same, because the cached value is derived from FullName only. +/// +public class ProducerExchangeNameCacheTests +{ + private static Producer CreateProducer() + { + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + + var settings = new Dictionary + { + [RabbitMQSettingKeys.RetryCount] = (ushort)1, + [RabbitMQSettingKeys.RetrySeconds] = (ushort)0, + }; + transport.SetupGet(t => t.ClientSettings).Returns(settings); + + var queue = new Mock(); + queue.SetupGet(q => q.QueueName).Returns("q"); + + var bus = new Mock(); + bus.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + + return new Producer(transport.Object, queue.Object, bus.Object, NullLogger.Instance); + } + + [Fact] + public void GetExchangeName_PopulatesCacheKeyedOnFullNameNotAssemblyQualifiedName() + { + var producer = CreateProducer(); + + var method = typeof(Producer).GetMethod("GetExchangeName", + BindingFlags.NonPublic | BindingFlags.Instance)!; + method.Invoke(producer, [typeof(string)]); + + var cacheField = typeof(Producer).GetField("_exchangeNameCache", + BindingFlags.NonPublic | BindingFlags.Instance)!; + var cache = (ConcurrentDictionary)cacheField.GetValue(producer)!; + + Assert.True(cache.ContainsKey(typeof(string).FullName!), + "Cache key must be FullName."); + Assert.False(cache.ContainsKey(typeof(string).AssemblyQualifiedName!), + "Cache key must NOT be AssemblyQualifiedName."); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ProducerHeaderAuthorityTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerHeaderAuthorityTests.cs new file mode 100644 index 000000000..07cf6efc7 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerHeaderAuthorityTests.cs @@ -0,0 +1,150 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Verifies that reserved transport headers are server-authoritative: caller-supplied values +/// must be silently overwritten by the producer for the four security-relevant keys. +/// MessageId is authoritative at the Bus layer instead (see BusCoreTests) so outgoing filters +/// can observe it before the send pipeline runs; direct Producer callers are trusted to +/// preserve it. +/// +public class ProducerHeaderAuthorityTests +{ + private static Producer CreateProducer(string queueName = "my-queue") + { + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary + { + [RabbitMQSettingKeys.RetryCount] = (ushort)0, + [RabbitMQSettingKeys.RetrySeconds] = (ushort)0, + }); + + var queue = new Mock(); + queue.SetupGet(q => q.QueueName).Returns(queueName); + + var bus = new Mock(); + bus.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + + return new Producer(transport.Object, queue.Object, bus.Object, NullLogger.Instance); + } + + private static void SetField(Producer producer, string fieldName, T value) => + ProducerInternals.SetField(producer, fieldName, value); + + /// + /// Runs a SendAsync(endPoint, …) call with the given hostile header and captures the + /// BasicProperties passed to BasicPublishAsync, returning the Headers dictionary. + /// + private static async Task> CaptureHeadersFromSendAsync( + string hostileKey, + string hostileValue, + string endPoint = "target-queue") + { + var producer = CreateProducer(); + var channel = new Mock(); + channel.SetupGet(c => c.IsOpen).Returns(true); + IDictionary? captured = null; + + channel + .Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Callback, CancellationToken>( + (_, _, _, props, _, _) => captured = props.Headers) + .Returns(ValueTask.CompletedTask); + + SetField(producer, "_model", channel.Object); + SetField(producer, "_connected", true); + + var hostileHeaders = new Dictionary + { + [hostileKey] = hostileValue + }; + + await producer.SendAsync(endPoint, typeof(object), new byte[] { 1 }, headers: hostileHeaders); + + Assert.NotNull(captured); + return captured!; + } + + [Theory] + [InlineData(HeaderKeys.DestinationAddress, "spoofed-queue")] + [InlineData(HeaderKeys.MessageType, "Spoofed")] + [InlineData(HeaderKeys.TypeName, "Spoofed.Type")] + [InlineData(HeaderKeys.FullTypeName, "Spoofed.Type, SpoofedAssembly")] + public async Task SendAsync_CallerCannotOverride_ReservedHeader(string headerKey, string hostileValue) + { + var headers = await CaptureHeadersFromSendAsync(headerKey, hostileValue, endPoint: "target-queue"); + + var actual = headers[headerKey]?.ToString(); + Assert.NotEqual(hostileValue, actual); + } + + /// + /// Runs SendBytesAsync with a hostile header and returns the captured BasicProperties.Headers. + /// + private static async Task> CaptureHeadersFromSendBytesAsync( + string hostileKey, + string hostileValue, + Type logicalType) + { + var producer = CreateProducer(); + var channel = new Mock(); + channel.SetupGet(c => c.IsOpen).Returns(true); + IDictionary? captured = null; + + channel + .Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Callback, CancellationToken>( + (_, _, _, props, _, _) => captured = props.Headers) + .Returns(ValueTask.CompletedTask); + + SetField(producer, "_model", channel.Object); + SetField(producer, "_connected", true); + + var hostileHeaders = new Dictionary + { + [hostileKey] = hostileValue + }; + + await producer.SendBytesAsync("target-queue", logicalType, new byte[] { 1 }, headers: hostileHeaders); + + Assert.NotNull(captured); + return captured!; + } + + [Theory] + [InlineData(HeaderKeys.DestinationAddress, "spoofed-queue")] + [InlineData(HeaderKeys.MessageType, "Spoofed")] + [InlineData(HeaderKeys.TypeName, "Spoofed.Type")] + [InlineData(HeaderKeys.FullTypeName, "Spoofed.Type, SpoofedAssembly")] + public async Task SendBytesAsync_CallerCannotOverride_ReservedHeader(string headerKey, string hostileValue) + { + var headers = await CaptureHeadersFromSendBytesAsync(headerKey, hostileValue, logicalType: typeof(ProducerHeaderAuthorityTests)); + + var actual = headers[headerKey]?.ToString(); + Assert.NotEqual(hostileValue, actual); + } + + [Fact] + public async Task SendBytesAsync_TypeHeaders_ComeFromLogicalTypeParameter() + { + var headers = await CaptureHeadersFromSendBytesAsync(HeaderKeys.TypeName, "hostile", logicalType: typeof(ProducerHeaderAuthorityTests)); + + Assert.Equal(typeof(ProducerHeaderAuthorityTests).FullName, headers[HeaderKeys.TypeName]?.ToString()); + Assert.Equal(typeof(ProducerHeaderAuthorityTests).AssemblyQualifiedName, headers[HeaderKeys.FullTypeName]?.ToString()); + Assert.Equal(HeaderKeys.ByteStream, headers[HeaderKeys.MessageType]?.ToString()); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ProducerInternals.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerInternals.cs new file mode 100644 index 000000000..f8b071748 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerInternals.cs @@ -0,0 +1,47 @@ +using System; +using System.Reflection; +using ServiceConnect.Client.RabbitMQ; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Reflection helpers for the Producer test suite. Producer's internal state is split +/// across Producer and the nested ProducerConnection collaborator; lookups fall back to +/// the connection collaborator so tests that reflect on the older flat layout +/// (e.g. _model, _connected, _declaredExchanges) still resolve to +/// the right object without touching every call site. +/// +internal static class ProducerInternals +{ + public static void SetField(Producer producer, string fieldName, T value) + { + var (target, field) = Resolve(producer, fieldName); + field.SetValue(target, value); + } + + public static T GetField(Producer producer, string fieldName) + { + var (target, field) = Resolve(producer, fieldName); + return (T)field.GetValue(target)!; + } + + private static (object Target, FieldInfo Field) Resolve(Producer producer, string fieldName) + { + var direct = typeof(Producer).GetField(fieldName, BindingFlags.Instance | BindingFlags.NonPublic); + if (direct != null) + { + return (producer, direct); + } + + // Field migrated to ProducerConnection — walk into Producer's _producerConnection collaborator. + var connectionField = typeof(Producer).GetField("_producerConnection", BindingFlags.Instance | BindingFlags.NonPublic) + ?? throw new InvalidOperationException("Producer._producerConnection not found; ProducerInternals needs updating."); + var connection = connectionField.GetValue(producer) + ?? throw new InvalidOperationException("Producer._producerConnection is null."); + + var inner = connection.GetType().GetField(fieldName, BindingFlags.Instance | BindingFlags.NonPublic) + ?? throw new InvalidOperationException( + $"Field '{fieldName}' not found on Producer or ProducerConnection."); + return (connection, inner); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ProducerIsHealthyTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerIsHealthyTests.cs new file mode 100644 index 000000000..ecf2e6370 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerIsHealthyTests.cs @@ -0,0 +1,69 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Verifies that reflects the underlying +/// ProducerConnection.IsHealthy() state — the public surface that +/// ProducerConnectionHealthCheck observes. +/// +public class ProducerIsHealthyTests +{ + private static Producer CreateProducer() + { + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + var settings = new Dictionary + { + [RabbitMQSettingKeys.RetryCount] = (ushort)1, + [RabbitMQSettingKeys.RetrySeconds] = (ushort)0, + }; + transport.SetupGet(t => t.ClientSettings).Returns(settings); + + var queue = new Mock(); + queue.SetupGet(q => q.QueueName).Returns("q"); + + var bus = new Mock(); + bus.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + + return new Producer(transport.Object, queue.Object, bus.Object, NullLogger.Instance); + } + + [Fact] + public void IsHealthy_FreshProducer_ReturnsFalse() + { + var producer = CreateProducer(); + Assert.False(producer.IsHealthy); + } + + [Fact] + public void IsHealthy_ConnectedAndChannelOpen_ReturnsTrue() + { + var producer = CreateProducer(); + var openChannel = new Mock(); + openChannel.SetupGet(c => c.IsOpen).Returns(true); + + ProducerInternals.SetField(producer, "_connected", true); + ProducerInternals.SetField(producer, "_model", openChannel.Object); + + Assert.True(producer.IsHealthy); + } + + [Fact] + public void IsHealthy_ConnectedButChannelClosed_ReturnsFalse() + { + var producer = CreateProducer(); + var closedChannel = new Mock(); + closedChannel.SetupGet(c => c.IsOpen).Returns(false); + + ProducerInternals.SetField(producer, "_connected", true); + ProducerInternals.SetField(producer, "_model", closedChannel.Object); + + Assert.False(producer.IsHealthy); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ProducerLifecycleTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerLifecycleTests.cs new file mode 100644 index 000000000..f5ada4041 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerLifecycleTests.cs @@ -0,0 +1,71 @@ +using System.Reflection; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public class ProducerLifecycleTests +{ + private static Producer CreateProducer() + { + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary()); + + var queue = new Mock(); + queue.SetupGet(q => q.QueueName).Returns("q"); + + var bus = new Mock(); + bus.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + + return new Producer(transport.Object, queue.Object, bus.Object, NullLogger.Instance); + } + + private static void SetField(Producer producer, string fieldName, T value) => + ProducerInternals.SetField(producer, fieldName, value); + + [Fact] + public async Task DisposeAsync_WhenCalledConcurrently_DoesNotThrowAndClosesResourcesOnce() + { + var producer = CreateProducer(); + var channel = new Mock(); + channel.SetupGet(c => c.IsOpen).Returns(true); + channel.Setup(c => c.CloseAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var connection = new Mock(); + connection.SetupGet(c => c.IsOpen).Returns(true); + connection.Setup(c => c.CloseAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + SetField(producer, "_model", channel.Object); + SetField(producer, "_connection", connection.Object); + SetField(producer, "_connected", true); + + var tasks = Enumerable.Range(0, 8) + .Select(_ => producer.DisposeAsync().AsTask()); + + var ex = await Record.ExceptionAsync(() => Task.WhenAll(tasks)); + + Assert.Null(ex); + channel.Verify(c => c.CloseAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny()), Times.Once); + channel.Verify(c => c.Dispose(), Times.Once); + connection.Verify(c => c.CloseAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny()), Times.Once); + connection.Verify(c => c.Dispose(), Times.Once); + } + + [Fact] + public void Producer_DoesNotExposeDisconnectAsync() + { + // Producer lifecycle is exclusively owned by IAsyncDisposable.DisposeAsync — + // pinning this here so a future refactor doesn't accidentally re-introduce a + // separate DisconnectAsync surface, which would create a dual-API hazard + // (callers that use one without the other leak the underlying connection). + var method = typeof(Producer).GetMethod("DisconnectAsync"); + Assert.Null(method); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ProducerMultiEndpointSendTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerMultiEndpointSendTests.cs new file mode 100644 index 000000000..d75ef1a7a --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerMultiEndpointSendTests.cs @@ -0,0 +1,101 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Microsoft.Extensions.Time.Testing; +using Moq; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public sealed class ProducerMultiEndpointSendTests +{ + [Fact] + public async Task SendAsync_FanOutToThreeEndpoints_EachDeliveryHasDistinctMessageIdAndTimeSent_SharedCorrelationId() + { + var fakeClock = new FakeTimeProvider(new DateTimeOffset(2026, 4, 29, 12, 0, 0, TimeSpan.Zero)); + + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary()); + + var queueConfig = new Mock(); + queueConfig.SetupGet(q => q.QueueName).Returns("source-q"); + IReadOnlyList endpoints = ["ep-a", "ep-b", "ep-c"]; + queueConfig.Setup(q => q.TryGetQueueMapping(typeof(FakeMsg), out endpoints!)).Returns(true); + + var busConfig = new Mock(); + busConfig.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + + // Capture per-call BasicProperties. BuildBasicProperties creates a new instance with + // a fresh headers-copy per call, so the references are already independent. We snapshot + // a defensive copy anyway so the test is robust to any future batching optimisations. + var captured = new List(); + var channel = new Mock(); + channel.SetupGet(c => c.IsOpen).Returns(true); + channel + .Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), It.IsAny())) + .Returns((string ex, string rk, bool m, BasicProperties bp, ReadOnlyMemory body, CancellationToken ct) => + { + // Snapshot: copy MessageId and headers into a new BasicProperties so later + // iterations' mutations to baseHeaders do not retroactively alter earlier captures. + captured.Add(new BasicProperties + { + MessageId = bp.MessageId, + Headers = bp.Headers is null ? null : new Dictionary(bp.Headers, StringComparer.Ordinal), + Persistent = bp.Persistent, + }); + // Advance the clock so successive iterations stamp a later TimeSent. + fakeClock.Advance(TimeSpan.FromMilliseconds(1)); + return ValueTask.CompletedTask; + }); + channel + .Setup(c => c.ExchangeDeclareAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny>(), false, false, It.IsAny())) + .Returns(Task.CompletedTask); + + var producer = new Producer(transport.Object, queueConfig.Object, busConfig.Object, NullLogger.Instance, fakeClock); + + // Inject the fake connection via the test seam so EnsureConnectedAsync routes through + // our mock channel without touching a real RabbitMQ broker. + var fakeConnection = new Mock(); + fakeConnection.SetupGet(c => c.IsOpen).Returns(true); + fakeConnection + .Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(channel.Object); + producer.CreateConnectionForTests = (_, _, _, _) => Task.FromResult(fakeConnection.Object); + + // Bus-stamped CorrelationId — must remain constant across the fan-out. + var correlationId = Guid.NewGuid().ToString(); + var headers = new Dictionary + { + [HeaderKeys.CorrelationId] = correlationId, + }; + + await producer.SendAsync(typeof(FakeMsg), new byte[] { 1, 2, 3 }, headers); + + Assert.Equal(3, captured.Count); + + // Invariant: each delivery carries a distinct on-wire identity. + Assert.Equal(3, captured.Select(c => c.MessageId).Distinct(StringComparer.Ordinal).Count()); + + // TimeSent is re-stamped per iteration; the clock advances inside each publish callback, + // so the three snapshots must all differ. + var timeSentValues = captured + .Select(c => c.Headers![HeaderKeys.TimeSent]!.ToString()!) + .ToList(); + Assert.Equal(3, timeSentValues.Distinct(StringComparer.Ordinal).Count()); + + // CorrelationId stays constant — proves we did not accidentally re-mint that. + var correlationIds = captured + .Select(c => c.Headers![HeaderKeys.CorrelationId]!.ToString()!) + .ToList(); + Assert.All(correlationIds, id => Assert.Equal(correlationId, id)); + } + + private sealed class FakeMsg { } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ProducerNullArgumentTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerNullArgumentTests.cs new file mode 100644 index 000000000..9348d92ff --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerNullArgumentTests.cs @@ -0,0 +1,66 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Verifies that all public publish/send entry points reject null type arguments +/// with before touching the message body. +/// Body parameters are (a value type), so null is +/// not representable; null-body tests are not applicable. +/// +public sealed class ProducerNullArgumentTests +{ + private static Producer CreateProducer() + { + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary()); + + var queueConfig = new Mock(); + queueConfig.SetupGet(q => q.QueueName).Returns("test-queue"); + + var busConfig = new Mock(); + + return new Producer(transport.Object, queueConfig.Object, busConfig.Object, NullLogger.Instance); + } + + [Fact] + public async Task PublishAsync_NullType_Throws() + { + var producer = CreateProducer(); + var ex = await Assert.ThrowsAsync(() => + producer.PublishAsync(null!, new byte[] { 1, 2, 3 })); + Assert.Equal("type", ex.ParamName); + } + + [Fact] + public async Task SendAsyncByType_NullType_Throws() + { + var producer = CreateProducer(); + var ex = await Assert.ThrowsAsync(() => + producer.SendAsync(null!, new byte[] { 1, 2, 3 })); + Assert.Equal("type", ex.ParamName); + } + + [Fact] + public async Task SendAsyncToEndpoint_NullType_Throws() + { + var producer = CreateProducer(); + var ex = await Assert.ThrowsAsync(() => + producer.SendAsync("ep", null!, new byte[] { 1, 2, 3 })); + Assert.Equal("type", ex.ParamName); + } + + [Fact] + public async Task SendBytesAsync_NullType_Throws() + { + var producer = CreateProducer(); + var ex = await Assert.ThrowsAsync(() => + producer.SendBytesAsync("ep", null!, new byte[] { 1, 2, 3 })); + Assert.Equal("type", ex.ParamName); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ProducerPublishMetricsTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerPublishMetricsTests.cs new file mode 100644 index 000000000..062f4a872 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerPublishMetricsTests.cs @@ -0,0 +1,151 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Diagnostics; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.UnitTests.Diagnostics; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Drives against a mocked broker and asserts the +/// OTel-standard metrics fire on success and on failure — duration always, the +/// messaging.client.published.messages counter only on success. +/// +public sealed class ProducerPublishMetricsTests +{ + [Fact] + public async Task PublishAsync_OnSuccess_RecordsPublishDurationAndIncrementsPublishedMessages() + { + // PublishAsync(Type) sets messaging.destination.name to the per-type exchange name. + // Use a per-test message type so the exchange-name filter isolates emissions from + // any other test running in parallel. + var exchangeName = ServiceConnect.Services.MessageTypeExchangeName.From(typeof(SuccessMessage)); + using var collector = new MetricCollector("messaging.destination.name", exchangeName); + await using var producer = BuildProducerWithMockChannel(out _, basicPublishThrows: false); + + await producer.PublishAsync(typeof(SuccessMessage), new byte[] { 1, 2, 3 }); + + var durationRecords = collector.GetDoubleRecords(MetricNames.PublishDuration); + var publishedRecords = collector.GetLongRecords(MetricNames.PublishedMessages); + + var duration = Assert.Single(durationRecords); + Assert.Equal("rabbitmq", duration.GetTag("messaging.system")); + Assert.Equal("publish", duration.GetTag("messaging.operation.type")); + Assert.Equal("publish", duration.GetTag("messaging.operation.name")); + Assert.Null(duration.GetTag("messaging.operation")); + // PublishAsync(Type) destination is the per-type exchange name; non-empty proves + // the destination was resolved before the metric emit. + Assert.False(string.IsNullOrEmpty(duration.GetTag("messaging.destination.name"))); + Assert.Null(duration.GetTag("error.type")); + Assert.True(duration.Value >= 0); + + var published = Assert.Single(publishedRecords); + Assert.Equal(1, published.Value); + Assert.Equal("rabbitmq", published.GetTag("messaging.system")); + Assert.Equal("publish", published.GetTag("messaging.operation.type")); + Assert.Equal("publish", published.GetTag("messaging.operation.name")); + Assert.Null(published.GetTag("messaging.operation")); + Assert.Equal(duration.GetTag("messaging.destination.name"), published.GetTag("messaging.destination.name")); + } + + [Fact] + public async Task PublishAsync_OnFailure_DoesNotIncrementPublishedMessages() + { + var exchangeName = ServiceConnect.Services.MessageTypeExchangeName.From(typeof(FailureMessage)); + using var collector = new MetricCollector("messaging.destination.name", exchangeName); + await using var producer = BuildProducerWithMockChannel(out _, basicPublishThrows: true); + + // PublishAsync surfaces broker-side failures as exceptions; the metric must still fire. + await Assert.ThrowsAnyAsync(() => producer.PublishAsync(typeof(FailureMessage), new byte[] { 1, 2, 3 })); + + var durationRecords = collector.GetDoubleRecords(MetricNames.PublishDuration); + var publishedRecords = collector.GetLongRecords(MetricNames.PublishedMessages); + + var duration = Assert.Single(durationRecords); + Assert.Equal("rabbitmq", duration.GetTag("messaging.system")); + Assert.Equal("publish", duration.GetTag("messaging.operation.type")); + Assert.Equal("publish", duration.GetTag("messaging.operation.name")); + Assert.Null(duration.GetTag("messaging.operation")); + // The destination resolved before the publish call — failure happens at BasicPublishAsync, + // by which point GetExchangeName has already populated the exchange name. + Assert.False(string.IsNullOrEmpty(duration.GetTag("messaging.destination.name"))); + // error.type must be populated on the failure path. + Assert.NotNull(duration.GetTag("error.type")); + + // Counter does NOT increment on failure — the published-messages counter is success-only. + Assert.Empty(publishedRecords); + } + + private static Producer BuildProducerWithMockChannel(out Mock channel, bool basicPublishThrows) + { + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + + // Tight retry budget so a failing publish surfaces quickly without burning the + // default 60 × 10s reconnect window inside the test. + var settings = new Dictionary + { + [RabbitMQSettingKeys.RetryCount] = (ushort)0, + [RabbitMQSettingKeys.RetrySeconds] = (ushort)0, + }; + transport.SetupGet(t => t.ClientSettings).Returns(settings); + + var queue = new Mock(); + queue.SetupGet(q => q.QueueName).Returns("publish-metrics-q"); + + var bus = new Mock(); + bus.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + + var mockChannel = new Mock(); + mockChannel.SetupGet(c => c.IsOpen).Returns(true); + mockChannel + .Setup(c => c.ExchangeDeclareAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny>(), false, false, It.IsAny())) + .Returns(Task.CompletedTask); + + if (basicPublishThrows) + { + mockChannel + .Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + // InvalidOperationException IS retriable per IsRetriablePublishException, but + // RetryCount=0 (set on the transport above) makes the publish surface on the + // first attempt regardless. Used in place of TimeoutException because TimeoutException + // is now treated as confirm-timeout-indeterminate by EmitPublishMetrics — the + // duration metric suppresses error.type for that case, breaking this test's + // "error.type populated on failure" assertion. InvalidOperationException keeps + // the assertion meaningful. + .ThrowsAsync(new InvalidOperationException("publish failed in test")); + } + else + { + mockChannel + .Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns(ValueTask.CompletedTask); + } + + var producer = new Producer(transport.Object, queue.Object, bus.Object, NullLogger.Instance); + + var fakeConnection = new Mock(); + fakeConnection.SetupGet(c => c.IsOpen).Returns(true); + fakeConnection + .Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(mockChannel.Object); + producer.CreateConnectionForTests = (_, _, _, _) => Task.FromResult(fakeConnection.Object); + + channel = mockChannel; + return producer; + } + + private sealed class SuccessMessage { } + private sealed class FailureMessage { } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ProducerPublishTimeoutResetTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerPublishTimeoutResetTests.cs new file mode 100644 index 000000000..3a07e4d4e --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerPublishTimeoutResetTests.cs @@ -0,0 +1,201 @@ +using System.Collections.Concurrent; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// must NOT drive a reconnect inline +/// while holding _publishLock. Doing so would block every concurrent publisher +/// for up to retryCount * retrySeconds (default 60 * 10s = 10 min). Instead, the +/// publish-timeout catch path sets a synchronous _resetRequired flag on +/// ; the next call to EnsureConnectedAsync +/// consumes the flag and drives the reconnect off the publish lock. +/// +public sealed class ProducerPublishTimeoutResetTests +{ + private static Producer CreateProducer(TimeSpan publishTimeout) + { + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + // RetryCount:0 — these tests assert the single-attempt timeout mechanism (deferred + // reset flag, no inline reconnect). With TimeoutException now retriable, a non-zero + // retryCount would cause EnsureConnectedAsync to attempt a real connection on the + // retry, which hangs and never resolves in a unit test without a broker. + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary + { + [RabbitMQSettingKeys.PublishTimeout] = publishTimeout, + [RabbitMQSettingKeys.RetryCount] = (ushort)0, + [RabbitMQSettingKeys.RetrySeconds] = (ushort)0, + }); + + var queue = new Mock(); + queue.SetupGet(q => q.QueueName).Returns("q"); + + var bus = new Mock(); + bus.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + + return new Producer(transport.Object, queue.Object, bus.Object, NullLogger.Instance); + } + + private static Mock MakeHangingChannel(TimeSpan delay) + { + var channel = new Mock(); + channel.SetupGet(c => c.IsOpen).Returns(true); + channel + .Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), It.IsAny())) + .Returns((string _, string _, bool _, BasicProperties _, ReadOnlyMemory _, CancellationToken ct) => + new ValueTask(Task.Delay(delay, ct))); + channel + .Setup(c => c.ExchangeDeclareAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny>(), false, false, It.IsAny())) + .Returns(Task.CompletedTask); + return channel; + } + + private static Mock MakeImmediateChannel() + { + var channel = new Mock(); + channel.SetupGet(c => c.IsOpen).Returns(true); + channel + .Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), It.IsAny())) + .Returns(ValueTask.CompletedTask); + channel + .Setup(c => c.ExchangeDeclareAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny>(), false, false, It.IsAny())) + .Returns(Task.CompletedTask); + return channel; + } + + /// + /// Pre-seed the producer with a known channel so the first publish skips the connection + /// factory and goes straight to BasicPublishAsync. Mirrors the pattern in + /// ProducerPublishTimeoutTests. + /// + private static void PrimeProducer(Producer producer, IChannel channel) + { + ProducerInternals.SetField(producer, "_model", channel); + ProducerInternals.SetField(producer, "_connected", true); + var declared = ProducerInternals.GetField>(producer, "_declaredExchanges"); + declared["SystemObject"] = 0L; + } + + private static int GetResetRequired(Producer producer) => + ProducerInternals.GetField(producer, "_resetRequired"); + + private static bool ResetRequiredFlag(Producer producer) => GetResetRequired(producer) == 1; + + [Fact] + public async Task PublishTimeout_Throws_DoesNotReconnect_FlagsResetRequired() + { + // Arrange: 50ms publish timeout, 5s simulated publish hang. + await using var producer = CreateProducer(TimeSpan.FromMilliseconds(50)); + var channel = MakeHangingChannel(TimeSpan.FromSeconds(5)); + PrimeProducer(producer, channel.Object); + + // No CreateConnectionForTests is installed: if PublishWithTimeoutAsync's catch path + // wrongly drove a reconnect inline it would call into the production + // CreateConnectionAsync (and ConnectionFactoryBuilder.Build), which would either + // attempt a real AMQP connect or throw out of the catch path — both visible regressions. + + // Act: publish should time out. + await Assert.ThrowsAsync(() => + producer.PublishAsync(typeof(object), new byte[] { 1, 2, 3 })); + + // Assert: reset-required flag is set on _producerConnection. The deferred reset is + // the load-bearing contract: the next EnsureConnectedAsync consumes the flag under + // _connectionSemaphore, NOT under _publishLock. + Assert.True(ResetRequiredFlag(producer)); + } + + [Fact] + public async Task NextPublishAfterTimeout_DrivesReset_BeforeAcquiringPublishLock() + { + // First channel hangs; second channel (built by the post-timeout reconnect) acks immediately. + var hangingChannel = MakeHangingChannel(TimeSpan.FromSeconds(5)); + var freshChannel = MakeImmediateChannel(); + + await using var producer = CreateProducer(TimeSpan.FromMilliseconds(50)); + PrimeProducer(producer, hangingChannel.Object); + + // CreateConnectionForTests counts how many fresh connections are built. Each + // EnsureConnectedAsync that consumes the reset flag tears down then calls + // CreateConnectionAsync exactly once, so this counter == reconnect-driven rebuilds. + int connectionBuilds = 0; + var fakeConnection = new Mock(); + fakeConnection.SetupGet(c => c.IsOpen).Returns(true); + fakeConnection + .Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(freshChannel.Object); + producer.CreateConnectionForTests = (_, _, _, _) => + { + Interlocked.Increment(ref connectionBuilds); + return Task.FromResult(fakeConnection.Object); + }; + + // Act: first publish times out → flag set, no reconnect yet. + await Assert.ThrowsAsync(() => + producer.PublishAsync(typeof(object), new byte[] { 1, 2, 3 })); + Assert.Equal(0, connectionBuilds); + Assert.True(ResetRequiredFlag(producer)); + + // Act: second publish drives the reset before its own publish runs. + await producer.PublishAsync(typeof(object), new byte[] { 4, 5, 6 }); + + // Assert: exactly one fresh connection was built — driven by the deferred reset on + // EnsureConnectedAsync's flag-consume path, NOT by the first publish's catch. + Assert.Equal(1, connectionBuilds); + // Assert: flag was consumed. + Assert.False(ResetRequiredFlag(producer)); + } + + [Fact] + public async Task MarkResetRequired_IsIdempotent_ConcurrentTimeouts_OneReset() + { + // Arrange: two concurrent publishes both time out — both call MarkResetRequired, + // but the flag is set-once, and the next publish drives EXACTLY ONE reconnect. + var hangingChannel = MakeHangingChannel(TimeSpan.FromSeconds(5)); + var freshChannel = MakeImmediateChannel(); + + await using var producer = CreateProducer(TimeSpan.FromMilliseconds(50)); + PrimeProducer(producer, hangingChannel.Object); + + int connectionBuilds = 0; + var fakeConnection = new Mock(); + fakeConnection.SetupGet(c => c.IsOpen).Returns(true); + fakeConnection + .Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(freshChannel.Object); + producer.CreateConnectionForTests = (_, _, _, _) => + { + Interlocked.Increment(ref connectionBuilds); + return Task.FromResult(fakeConnection.Object); + }; + + // Two concurrent timeouts. PublishAsync serialises on _publishLock, but the catch-path + // MarkResetRequired call is non-blocking and idempotent regardless of order — both timeouts + // set the flag to 1, but the flag is consumed exactly once on the next publish. + var t1 = Assert.ThrowsAsync(() => producer.PublishAsync(typeof(object), new byte[] { 1 })); + var t2 = Assert.ThrowsAsync(() => producer.PublishAsync(typeof(object), new byte[] { 2 })); + await Task.WhenAll(t1, t2); + + Assert.Equal(0, connectionBuilds); + Assert.True(ResetRequiredFlag(producer)); + + // Subsequent fast publish should drive exactly ONE reset. + await producer.PublishAsync(typeof(object), new byte[] { 3 }); + + Assert.Equal(1, connectionBuilds); + Assert.False(ResetRequiredFlag(producer)); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ProducerPublishTimeoutRetryTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerPublishTimeoutRetryTests.cs new file mode 100644 index 000000000..6a29e92dc --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerPublishTimeoutRetryTests.cs @@ -0,0 +1,321 @@ +using System.Collections.Concurrent; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using RabbitMQ.Client.Exceptions; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Client.RabbitMQ.Configuration; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Pins the producer's retry contract under the at-least-once delivery model: a publish-confirm +/// TimeoutException retries on a fresh attempt, the MessageId is preserved across attempts, and +/// MaxPublishWaitTime caps the total wall-clock budget so a permanently-dead broker cannot hold +/// a publisher indefinitely. +/// +public class ProducerPublishTimeoutRetryTests +{ + private static Producer CreateProducer( + TimeSpan? publishTimeout = null, + TimeSpan? maxPublishWaitTime = null, + ushort retryCount = 2) + { + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + + var settings = new Dictionary + { + [RabbitMQSettingKeys.RetryCount] = retryCount, + [RabbitMQSettingKeys.RetrySeconds] = (ushort)0, + }; + if (publishTimeout.HasValue) { settings[RabbitMQSettingKeys.PublishTimeout] = publishTimeout.Value; } + if (maxPublishWaitTime.HasValue) { settings[RabbitMQSettingKeys.MaxPublishWaitTime] = maxPublishWaitTime.Value; } + + transport.SetupGet(t => t.ClientSettings).Returns(settings); + + var queue = new Mock(); + queue.SetupGet(q => q.QueueName).Returns("q"); + queue.Setup(q => q.TryGetQueueMapping(It.IsAny(), out It.Ref?>.IsAny)) + .Returns((Type _, out IReadOnlyList? endpoints) => + { + endpoints = ["q"]; + return true; + }); + + var bus = new Mock(); + bus.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + + var producer = new Producer(transport.Object, queue.Object, bus.Object, NullLogger.Instance) + { + // Bypass Task.Delay in the inter-attempt path so retry tests are not wall-clock bound. + RetryDelayForTests = (_, _) => Task.CompletedTask, + }; + return producer; + } + + // Returns a connection factory that produces channels whose BasicPublishAsync hangs until + // the CancellationToken fires. Used by wall-clock cap tests to keep EnsureConnectedAsync + // (post-timeout reconnect) fast — no real broker is running in unit tests. + private static Func> MakeHangingConnectionFactory() + { + return (_, _, _, _) => + { + var channel = new Mock(); + channel.SetupGet(c => c.IsOpen).Returns(true); + channel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns((string _, string _, bool _, BasicProperties _, ReadOnlyMemory _, CancellationToken ct) => + new ValueTask(Task.Delay(Timeout.Infinite, ct))); + + var conn = new Mock(); + conn.SetupGet(c => c.IsOpen).Returns(true); + conn.Setup(c => c.CreateChannelAsync( + It.IsAny(), + It.IsAny())) + .ReturnsAsync(channel.Object); + return Task.FromResult(conn.Object); + }; + } + + private static void SetField(Producer producer, string fieldName, T value) => + ProducerInternals.SetField(producer, fieldName, value); + + private static T GetField(Producer producer, string fieldName) => + ProducerInternals.GetField(producer, fieldName); + + [Fact] + public async Task PublishAsync_RetriesTimeoutException_SucceedsOnSecondAttempt() + { + var producer = CreateProducer( + publishTimeout: TimeSpan.FromMilliseconds(100), + maxPublishWaitTime: TimeSpan.FromSeconds(5)); + var declaredExchanges = GetField>(producer, "_declaredExchanges"); + declaredExchanges["SystemObject"] = 0L; + + var channel = new Mock(); + channel.SetupGet(c => c.IsOpen).Returns(true); + + var callCount = 0; + channel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns((string _, string _, bool _, BasicProperties _, ReadOnlyMemory _, CancellationToken ct) => + { + callCount++; + if (callCount == 1) + { + // Simulate the broker's confirm-ack never arriving so the + // publish-timeout CTS fires inside PublishWithTimeoutAsync. + return new ValueTask(Task.Delay(Timeout.Infinite, ct)); + } + return ValueTask.CompletedTask; + }); + + // After the first attempt times out, EnsureConnectedAsync will try to reconnect. + // Provide a connection factory that reuses the same hanging-then-succeeding channel + // to avoid real broker connection attempts. + producer.CreateConnectionForTests = (_, _, _, _) => + { + var conn = new Mock(); + conn.SetupGet(c => c.IsOpen).Returns(true); + conn.Setup(c => c.CreateChannelAsync( + It.IsAny(), + It.IsAny())) + .ReturnsAsync(channel.Object); + return Task.FromResult(conn.Object); + }; + + SetField(producer, "_model", channel.Object); + SetField(producer, "_connected", true); + + await producer.PublishAsync(typeof(object), new byte[] { 1, 2, 3 }); + + Assert.Equal(2, callCount); + } + + [Fact] + public async Task PublishAsync_RetriesTimeoutException_PreservesMessageIdAcrossAttempts() + { + var producer = CreateProducer( + publishTimeout: TimeSpan.FromMilliseconds(100), + maxPublishWaitTime: TimeSpan.FromSeconds(5)); + var declaredExchanges = GetField>(producer, "_declaredExchanges"); + declaredExchanges["SystemObject"] = 0L; + + var channel = new Mock(); + channel.SetupGet(c => c.IsOpen).Returns(true); + + var capturedMessageIds = new List(); + var callCount = 0; + channel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns((string _, string _, bool _, BasicProperties props, ReadOnlyMemory _, CancellationToken ct) => + { + capturedMessageIds.Add(props.MessageId); + callCount++; + if (callCount == 1) + { + return new ValueTask(Task.Delay(Timeout.Infinite, ct)); + } + return ValueTask.CompletedTask; + }); + + producer.CreateConnectionForTests = (_, _, _, _) => + { + var conn = new Mock(); + conn.SetupGet(c => c.IsOpen).Returns(true); + conn.Setup(c => c.CreateChannelAsync( + It.IsAny(), + It.IsAny())) + .ReturnsAsync(channel.Object); + return Task.FromResult(conn.Object); + }; + + SetField(producer, "_model", channel.Object); + SetField(producer, "_connected", true); + + await producer.PublishAsync(typeof(object), new byte[] { 1, 2, 3 }); + + Assert.Equal(2, capturedMessageIds.Count); + Assert.NotNull(capturedMessageIds[0]); + Assert.Equal(capturedMessageIds[0], capturedMessageIds[1]); + } + + [Fact] + public async Task PublishAsync_MaxPublishWaitTime_CapsRetryLoopWallClock() + { + var producer = CreateProducer( + publishTimeout: TimeSpan.FromMilliseconds(100), + maxPublishWaitTime: TimeSpan.FromMilliseconds(200), + retryCount: 60); + producer.CreateConnectionForTests = MakeHangingConnectionFactory(); + var declaredExchanges = GetField>(producer, "_declaredExchanges"); + declaredExchanges["SystemObject"] = 0L; + + var channel = new Mock(); + channel.SetupGet(c => c.IsOpen).Returns(true); + channel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns((string _, string _, bool _, BasicProperties _, ReadOnlyMemory _, CancellationToken ct) => + new ValueTask(Task.Delay(Timeout.Infinite, ct))); + + SetField(producer, "_model", channel.Object); + SetField(producer, "_connected", true); + + var sw = System.Diagnostics.Stopwatch.StartNew(); + var ex = await Assert.ThrowsAsync(() => + producer.PublishAsync(typeof(object), new byte[] { 1, 2, 3 })); + sw.Stop(); + + Assert.Contains("wall-clock budget", ex.Message, StringComparison.Ordinal); + // RetryCount=60, PublishTimeout=100ms — without the cap the test would burn 6+ seconds. + // The cap is 200ms; 1s allows ~800ms of CI overhead on top of the cap. + Assert.True(sw.Elapsed < TimeSpan.FromSeconds(1), + $"Test took {sw.Elapsed.TotalSeconds:F2}s but the cap was 200ms."); + } + + [Fact] + public async Task PublishAsync_MaxPublishWaitTime_InfiniteTimeSpan_DisablesCap() + { + var producer = CreateProducer( + publishTimeout: TimeSpan.FromMilliseconds(50), + maxPublishWaitTime: Timeout.InfiniteTimeSpan, + retryCount: 2); + var declaredExchanges = GetField>(producer, "_declaredExchanges"); + declaredExchanges["SystemObject"] = 0L; + + var channel = new Mock(); + channel.SetupGet(c => c.IsOpen).Returns(true); + + var callCount = 0; + channel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns((string _, string _, bool _, BasicProperties _, ReadOnlyMemory _, CancellationToken ct) => + { + Interlocked.Increment(ref callCount); + return new ValueTask(Task.Delay(Timeout.Infinite, ct)); + }); + + // Share the same channel mock between the initial _model and the reconnect factory so + // all 3 attempts (attempt 0 via _model, attempts 1 and 2 via factory) feed the same counter. + producer.CreateConnectionForTests = (_, _, _, _) => + { + var conn = new Mock(); + conn.SetupGet(c => c.IsOpen).Returns(true); + conn.Setup(c => c.CreateChannelAsync( + It.IsAny(), + It.IsAny())) + .ReturnsAsync(channel.Object); + return Task.FromResult(conn.Object); + }; + + SetField(producer, "_model", channel.Object); + SetField(producer, "_connected", true); + + var ex = await Assert.ThrowsAsync(() => + producer.PublishAsync(typeof(object), new byte[] { 1, 2, 3 })); + Assert.DoesNotContain("wall-clock budget", ex.Message, StringComparison.Ordinal); + // retryCount=2 means 3 total attempts (0, 1, 2). With InfiniteTimeSpan the cap is + // disabled, so the loop runs all 3 before throwing. This complements the + // CapsRetryLoopWallClock test by verifying the loop did NOT short-circuit. + Assert.Equal(3, callCount); + } + + [Fact] + public async Task PublishAsync_PublishException_StillPropagatesWithoutRetry() + { + var producer = CreateProducer( + publishTimeout: TimeSpan.FromMilliseconds(100), + maxPublishWaitTime: TimeSpan.FromSeconds(5), + retryCount: 10); + var declaredExchanges = GetField>(producer, "_declaredExchanges"); + declaredExchanges["SystemObject"] = 0L; + + var channel = new Mock(); + channel.SetupGet(c => c.IsOpen).Returns(true); + + var callCount = 0; + channel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns((string _, string _, bool _, BasicProperties _, ReadOnlyMemory _, CancellationToken _) => + { + callCount++; + throw new PublishException(1, false); + }); + + SetField(producer, "_model", channel.Object); + SetField(producer, "_connected", true); + + await Assert.ThrowsAsync(() => + producer.PublishAsync(typeof(object), new byte[] { 1, 2, 3 })); + + Assert.Equal(1, callCount); + } + + [Fact] + public void RabbitMqOptions_Validate_RejectsZeroMaxPublishWaitTime() + { + var options = new RabbitMqOptions + { + MaxPublishWaitTime = TimeSpan.Zero, + }; + + var errors = options.Validate(); + + Assert.Contains(errors, e => e.Contains("MaxPublishWaitTime", StringComparison.Ordinal)); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ProducerPublishTimeoutTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerPublishTimeoutTests.cs new file mode 100644 index 000000000..5de2ce9c4 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerPublishTimeoutTests.cs @@ -0,0 +1,312 @@ +using System.Collections.Concurrent; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Verifies that enforces a publish-side timeout under publisher confirms. +/// A half-open connection or broker stall would otherwise hold _publishLock indefinitely. +/// +public class ProducerPublishTimeoutTests +{ + private static Producer CreateProducer( + TimeSpan? publishTimeout = null, + TimeSpan? maxPublishWaitTime = null, + ushort retryCount = 1) + { + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + + var settings = new Dictionary + { + [RabbitMQSettingKeys.RetryCount] = retryCount, + [RabbitMQSettingKeys.RetrySeconds] = (ushort)0, + }; + if (publishTimeout.HasValue) + { + settings[RabbitMQSettingKeys.PublishTimeout] = publishTimeout.Value; + } + if (maxPublishWaitTime.HasValue) + { + settings[RabbitMQSettingKeys.MaxPublishWaitTime] = maxPublishWaitTime.Value; + } + + transport.SetupGet(t => t.ClientSettings).Returns(settings); + + var queue = new Mock(); + queue.SetupGet(q => q.QueueName).Returns("q"); + queue.Setup(q => q.TryGetQueueMapping(It.IsAny(), out It.Ref?>.IsAny)) + .Returns((Type _, out IReadOnlyList? endpoints) => + { + endpoints = ["q"]; + return true; + }); + + var bus = new Mock(); + bus.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + + return new Producer(transport.Object, queue.Object, bus.Object, NullLogger.Instance); + } + + private static void SetField(Producer producer, string fieldName, T value) => + ProducerInternals.SetField(producer, fieldName, value); + + private static T GetField(Producer producer, string fieldName) => + ProducerInternals.GetField(producer, fieldName); + + /// + /// Helper: set up a channel whose BasicPublishAsync hangs until its CancellationToken fires. + /// This simulates a half-open connection or broker stall under publisher confirms. + /// + private static Mock MakeHangingChannel() + { + var channel = new Mock(); + channel.SetupGet(c => c.IsOpen).Returns(true); + channel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns((string _, string _, bool _, BasicProperties _, ReadOnlyMemory _, CancellationToken ct) => + { + // Simulate an indefinitely-stalled broker: Task.Delay(Infinite) resolves only + // when the supplied token is cancelled — i.e., when our linked timeout CTS fires. + return new ValueTask(Task.Delay(Timeout.Infinite, ct)); + }); + return channel; + } + + // Builds a fake IConnection that always produces a new hanging channel. Used by the + // wall-clock budget tests to keep EnsureConnectedAsync (post-timeout reconnect) fast so + // the retry loop's only source of latency is the hanging BasicPublishAsync, not a real + // connection attempt to a broker that isn't running in unit tests. + private static Func> MakeHangingConnectionFactory() + { + return (_, _, _, _) => + { + var channel = new Mock(); + channel.SetupGet(c => c.IsOpen).Returns(true); + channel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns((string _, string _, bool _, BasicProperties _, ReadOnlyMemory _, CancellationToken ct) => + new ValueTask(Task.Delay(Timeout.Infinite, ct))); + + var conn = new Mock(); + conn.SetupGet(c => c.IsOpen).Returns(true); + conn.Setup(c => c.CreateChannelAsync( + It.IsAny(), + It.IsAny())) + .ReturnsAsync(channel.Object); + return Task.FromResult(conn.Object); + }; + } + + [Fact] + public async Task PublishAsync_ThrowsTimeoutException_WhenBasicPublishHangsForLongerThanBudget() + { + var producer = CreateProducer( + publishTimeout: TimeSpan.FromMilliseconds(100), + maxPublishWaitTime: TimeSpan.FromMilliseconds(300), + retryCount: 10); + producer.CreateConnectionForTests = MakeHangingConnectionFactory(); + var channel = MakeHangingChannel(); + var declaredExchanges = GetField>(producer, "_declaredExchanges"); + declaredExchanges["SystemObject"] = 0L; + + SetField(producer, "_model", channel.Object); + SetField(producer, "_connected", true); + + var ex = await Assert.ThrowsAsync(() => + producer.PublishAsync(typeof(object), new byte[] { 1, 2, 3 })); + Assert.Contains("wall-clock budget", ex.Message, StringComparison.Ordinal); + } + + [Fact] + public async Task SendAsync_ByType_ThrowsAggregateException_ContainingTimeoutException_WhenBasicPublishHangsForLongerThanBudget() + { + // SendAsync(Type) collects per-endpoint failures and surfaces them as AggregateException. + // A single-endpoint mapping wraps the TimeoutException — callers must unwrap or use + // .Handle()/.Flatten(). + var producer = CreateProducer( + publishTimeout: TimeSpan.FromMilliseconds(100), + maxPublishWaitTime: TimeSpan.FromMilliseconds(300), + retryCount: 10); + producer.CreateConnectionForTests = MakeHangingConnectionFactory(); + var channel = MakeHangingChannel(); + + SetField(producer, "_model", channel.Object); + SetField(producer, "_connected", true); + + var ex = await Assert.ThrowsAsync(() => + producer.SendAsync(typeof(object), new byte[] { 1, 2, 3 })); + + Assert.Single(ex.InnerExceptions); + var timeout = Assert.IsType(ex.InnerExceptions[0]); + Assert.Contains("wall-clock budget", timeout.Message, StringComparison.Ordinal); + } + + [Fact] + public async Task SendAsync_ByEndpoint_ThrowsTimeoutException_WhenBasicPublishHangsForLongerThanBudget() + { + var producer = CreateProducer( + publishTimeout: TimeSpan.FromMilliseconds(100), + maxPublishWaitTime: TimeSpan.FromMilliseconds(300), + retryCount: 10); + producer.CreateConnectionForTests = MakeHangingConnectionFactory(); + var channel = MakeHangingChannel(); + + SetField(producer, "_model", channel.Object); + SetField(producer, "_connected", true); + + var ex = await Assert.ThrowsAsync(() => + producer.SendAsync("destination-queue", typeof(object), new byte[] { 1, 2, 3 })); + Assert.Contains("wall-clock budget", ex.Message, StringComparison.Ordinal); + } + + [Fact] + public async Task SendBytesAsync_ThrowsTimeoutException_WhenBasicPublishHangsForLongerThanBudget() + { + var producer = CreateProducer( + publishTimeout: TimeSpan.FromMilliseconds(100), + maxPublishWaitTime: TimeSpan.FromMilliseconds(300), + retryCount: 10); + producer.CreateConnectionForTests = MakeHangingConnectionFactory(); + var channel = MakeHangingChannel(); + + SetField(producer, "_model", channel.Object); + SetField(producer, "_connected", true); + + var ex = await Assert.ThrowsAsync(() => + producer.SendBytesAsync("destination-queue", typeof(object), new byte[] { 1, 2, 3 })); + Assert.Contains("wall-clock budget", ex.Message, StringComparison.Ordinal); + } + + [Fact] + public async Task PublishAsync_DoesNotThrowTimeoutException_WhenBrokerAcksPromptly() + { + // Arrange: short timeout, but the channel acks immediately — no timeout should fire. + var producer = CreateProducer(publishTimeout: TimeSpan.FromMilliseconds(100)); + var channel = new Mock(); + channel.SetupGet(c => c.IsOpen).Returns(true); + var declaredExchanges = GetField>(producer, "_declaredExchanges"); + declaredExchanges["SystemObject"] = 0L; + + channel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns(ValueTask.CompletedTask); + + SetField(producer, "_model", channel.Object); + SetField(producer, "_connected", true); + + // Act: should complete without exception + await producer.PublishAsync(typeof(object), new byte[] { 1, 2, 3 }); + } + + [Fact] + public async Task PublishAsync_PropagatesOperationCanceledException_WhenCallerCancels() + { + // The caller's cancellation should propagate as OperationCanceledException, + // NOT be swallowed and converted to TimeoutException. + var producer = CreateProducer(publishTimeout: TimeSpan.FromSeconds(30)); + var channel = new Mock(); + channel.SetupGet(c => c.IsOpen).Returns(true); + var declaredExchanges = GetField>(producer, "_declaredExchanges"); + declaredExchanges["SystemObject"] = 0L; + + using var cts = new CancellationTokenSource(); + + channel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns((string _, string _, bool _, BasicProperties _, ReadOnlyMemory _, CancellationToken ct) => + { + // Cancel the caller's token, simulating bus shutdown during publish. + cts.Cancel(); + return new ValueTask(Task.Delay(Timeout.Infinite, ct)); + }); + + SetField(producer, "_model", channel.Object); + SetField(producer, "_connected", true); + + // Should be OperationCanceledException (or a subclass such as TaskCanceledException), not TimeoutException + var ex = await Assert.ThrowsAnyAsync(() => + producer.PublishAsync(typeof(object), new byte[] { 1, 2, 3 }, cancellationToken: cts.Token)); + Assert.IsNotType(ex); + } + + [Fact] + public async Task PublishAsync_DefaultsToThirtySecondTimeout_WhenNotConfigured() + { + // Verifies the default is wired up: when no PublishTimeout key is set in ClientSettings, + // _publishTimeout is 30 seconds. We check the field value rather than waiting 30s. + var producer = CreateProducer(publishTimeout: null); + + var timeout = GetField(producer, "_publishTimeout"); + + Assert.Equal(TimeSpan.FromSeconds(30), timeout); + } + + [Fact] + public async Task PublishAsync_MarksResetRequired_WhenBasicPublishTimesOut_WithoutReconnectingUnderLock() + { + // The publish-timeout catch path must defer the reconnect rather than driving it + // inline. Driving it inline would hold _publishLock for up to retryCount * + // retrySeconds — minutes — blocking concurrent publishers. Instead it sets the + // reset-required flag on ProducerConnection; the next EnsureConnectedAsync (which + // runs OUTSIDE _publishLock) consumes the flag under _connectionSemaphore. + // retryCount:0 ensures the single timed-out attempt propagates directly so the + // reset-required flag is observable without a wall-clock budget race. + var producer = CreateProducer(publishTimeout: TimeSpan.FromMilliseconds(100), retryCount: 0); + var channel = MakeHangingChannel(); + var declaredExchanges = GetField>(producer, "_declaredExchanges"); + declaredExchanges["SystemObject"] = 0L; + + SetField(producer, "_model", channel.Object); + SetField(producer, "_connected", true); + + // Act + await Assert.ThrowsAsync(() => + producer.PublishAsync(typeof(object), new byte[] { 1, 2, 3 })); + + // Assert: the reset-required flag is set on _producerConnection so the next publish + // drives the reset. Pre-restructure this used a ReconnectForTests counter to prove the + // catch path didn't reconnect inline; that seam is now gone, but the deferred-reset + // contract is observable via the reset flag (and the ProducerPublishTimeoutTimingTests + // wall-clock test independently asserts the off-lock guarantee). + var resetRequired = GetField(producer, "_resetRequired"); + Assert.Equal(1, resetRequired); + } + + [Fact] + public async Task PublishAsync_TimeoutException_ContainsExchangeAndRoutingKeyDetails() + { + // Verify that the enriched TimeoutException message includes exchange / routingKey / + // messageId so operators have enough context for post-mortem correlation. + // retryCount:0 so the single timed-out attempt propagates directly (the TimeoutException + // from PublishWithTimeoutAsync, not the wall-clock budget exception). + var producer = CreateProducer(publishTimeout: TimeSpan.FromMilliseconds(100), retryCount: 0); + var channel = MakeHangingChannel(); + var declaredExchanges = GetField>(producer, "_declaredExchanges"); + declaredExchanges["SystemObject"] = 0L; + + SetField(producer, "_model", channel.Object); + SetField(producer, "_connected", true); + + var ex = await Assert.ThrowsAsync(() => + producer.PublishAsync(typeof(object), new byte[] { 1, 2, 3 })); + + // The message must contain the contextual fields added by I2. + Assert.Contains("exchange=", ex.Message); + Assert.Contains("routingKey=", ex.Message); + Assert.Contains("messageId=", ex.Message); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ProducerPublishTimeoutTimingTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerPublishTimeoutTimingTests.cs new file mode 100644 index 000000000..d951ab94b --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerPublishTimeoutTimingTests.cs @@ -0,0 +1,191 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Configuration; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Asserts the user-visible wall-clock contract: a publish timeout returns to the caller +/// within ~publishTimeout, not within the reconnect retry budget. Uses Producer test seams to +/// bypass the broker so the timing window is deterministic. Complements +/// (which asserts the mechanism — flag set, +/// no in-catch reconnect) by asserting the wall-clock outcome. +/// +public sealed class ProducerPublishTimeoutTimingTests +{ + [Fact] + public async Task ConcurrentPublishers_WhenPublishTimesOut_NoPublisherBlockedForReconnectBudget() + { + // Arrange ───────────────────────────────────────────────────────────────────────────── + // publishTimeout = 200 ms (how long BasicPublishAsync hangs before timeout fires) + // reconnectDelay = 400 ms (simulated reconnect after reset-required flag consumed) + // publisherCount = 5 + // + // Threshold = 3 000 ms. + // TimeoutException is retriable; the retry's EnsureConnectedAsync drives the reconnect + // in the SAME publish call. EnsureConnectedAsync must run outside _publishLock so that + // concurrent publishers can reconnect independently. + // If EnsureConnectedAsync ran inside _publishLock, 5 serialised 400ms reconnects would + // push the worst publisher to ≥ 5 × (400 + 200) = 3 000 ms; with EnsureConnectedAsync + // outside the lock publishers proceed independently after the wall-clock budget fires. + const int publisherCount = 5; + const int publishTimeoutMs = 200; + const int reconnectDelayMs = 400; + var assertThreshold = TimeSpan.FromMilliseconds(3_000); + + var transport = new TransportConfiguration + { + // The mock channel replaces the broker connection, so no AMQP traffic flows + // during the publish phase of this test. + Host = "localhost", + Username = "guest", + Password = "guest", + // EnsureConnectedAsync drives the post-reset recreate by calling + // CreateConnectionAsync directly. CreateConnectionAsync calls + // ConnectionFactoryBuilder.Build, which validates SSL config; the default + // SslEnabled=true requires a ServerName the test doesn't supply. Plain-text + // here matches the test's loopback Host. + SslEnabled = false, + }; + transport.SetClientSetting(RabbitMQSettingKeys.Port, 5672); + transport.SetClientSetting(RabbitMQSettingKeys.PublishTimeout, TimeSpan.FromMilliseconds(publishTimeoutMs)); + // RetryCount allows exactly one retry attempt per publisher so the EnsureConnectedAsync + // reconnect path is exercised within the wall-clock budget. RetrySeconds=0 eliminates + // inter-attempt jitter delay so the reconnect latency is the only source of wall-clock + // growth — keeping the test deterministic and free of JitteredRetryDelay variance. + transport.SetClientSetting(RabbitMQSettingKeys.RetryCount, 1); + transport.SetClientSetting(RabbitMQSettingKeys.RetrySeconds, 0); + // MaxPublishWaitTime caps the total retry loop wall-clock. TimeoutException is + // now retriable (at-least-once contract), so without this cap the retry loop + // could continue indefinitely. Set slightly above publishTimeout so the wall-clock + // budget fires after exactly one reconnect attempt per publisher — the retry's + // second publish attempt times out, and the budget check at the next iteration's + // head fires before a second reconnect can happen. This gives the test a bounded, + // deterministic wall-clock profile. + transport.SetClientSetting(RabbitMQSettingKeys.MaxPublishWaitTime, TimeSpan.FromMilliseconds((publishTimeoutMs * 2) + 100)); + // PublisherAcknowledgements=true makes BasicPublishAsync wait for a broker confirm. + // Our hanging-channel mock exploits this to stall the call until the timeout fires. + transport.SetClientSetting(RabbitMQSettingKeys.PublisherAcknowledgements, true); + + var queue = new Mock(); + queue.SetupGet(q => q.QueueName).Returns("timeout-timing"); + + var bus = new Mock(); + bus.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + + var producer = new Producer( + transport, + queue.Object, + bus.Object, + NullLogger.Instance); + + // Seam 1: inject a mock connection whose channel hangs on BasicPublishAsync. + // This replaces CreateConnectionAsync inside ProducerConnection, so the first + // EnsureConnectedAsync call succeeds quickly (mock returns immediately) but every + // BasicPublishAsync on the resulting channel blocks until the timeout CTS fires. + // The slow-reconnect simulation is layered on top: after the FIRST connect, every + // subsequent recreate (driven by reset-required) waits reconnectDelayMs. The + // load-bearing property under test: this delay runs under _connectionSemaphore, NOT + // _publishLock, so concurrent publishers are not serialised behind it. + var hangingChannel = BuildHangingChannel(); + int connectCalls = 0; + producer.CreateConnectionForTests = async (_, _, _, ct) => + { + // Skip the delay on the first connect so the test setup doesn't pay the + // reconnect cost. Subsequent calls (driven by post-timeout reset) simulate + // a slow reconnect under _connectionSemaphore. + if (Interlocked.Increment(ref connectCalls) > 1) + { + await Task.Delay(reconnectDelayMs, ct).ConfigureAwait(false); + } + var conn = new Mock(); + conn.SetupGet(c => c.IsOpen).Returns(true); + conn.Setup(c => c.CreateChannelAsync( + It.IsAny(), + It.IsAny())) + .ReturnsAsync(hangingChannel.Object); + return conn.Object; + }; + + // Act ───────────────────────────────────────────────────────────────────────────────── + var stopwatches = Enumerable.Range(0, publisherCount) + .Select(_ => new System.Diagnostics.Stopwatch()) + .ToList(); + + var publishTasks = stopwatches.Select((sw, _) => Task.Run(async () => + { + sw.Start(); + try + { + await producer.PublishAsync(typeof(object), new byte[] { 1, 2, 3 }); + } + catch (TimeoutException) + { + // Expected: BasicPublishAsync hangs and the publish-timeout CTS fires. + // The timeout is raised in PublishWithTimeoutAsync, _publishLock is released, + // and elapsed time should be ~publishTimeout. + } + catch (Exception) + { + // Swallow other exceptions: the timing assertion below is the load-bearing + // check, and a regression that pulls EnsureConnectedAsync back inside + // _publishLock could surface a transient race (e.g. NullReferenceException + // from a torn-down _model) rather than a clean timeout. Capture here so the + // wall-clock regression remains visible rather than masked by an unrelated + // throw type. + } + finally + { + sw.Stop(); + } + })).ToList(); + + await Task.WhenAll(publishTasks); + + await producer.DisposeAsync(); + + // Assert ────────────────────────────────────────────────────────────────────────────── + // Every publisher should return well under threshold = 3 000 ms. + // If EnsureConnectedAsync ran inside _publishLock, the 400ms reconnects would serialise + // behind every other publisher — worst publisher would approach or exceed 3 000 ms. + // With EnsureConnectedAsync outside the lock, all publishers exit within ~2 500 ms even + // with up to 5 sequential reconnects (5 × 400ms = 2 000ms reconnect + ~400ms publishes). + for (var i = 0; i < publisherCount; i++) + { + Assert.True( + stopwatches[i].Elapsed < assertThreshold, + $"Publisher {i} took {stopwatches[i].Elapsed.TotalMilliseconds:F0}ms; " + + $"expected < {assertThreshold.TotalMilliseconds:F0}ms. " + + $"Exceeding the threshold indicates EnsureConnectedAsync is being awaited under " + + $"_publishLock (worst-case ≈ {reconnectDelayMs * publisherCount}ms)."); + } + } + + /// + /// Builds a mock whose BasicPublishAsync hangs indefinitely + /// until the caller's is cancelled. Because + /// PublishWithTimeoutAsync passes a linked CTS that fires after _publishTimeout, + /// every BasicPublishAsync call against this channel is guaranteed to time out, + /// giving a deterministic timeout trigger without relying on broker latency or queue policies. + /// + private static Mock BuildHangingChannel() + { + var channel = new Mock(); + channel.SetupGet(c => c.IsOpen).Returns(true); + channel.Setup(c => c.BasicPublishAsync( + It.IsAny(), + It.IsAny(), + It.IsAny(), + It.IsAny(), + It.IsAny>(), + It.IsAny())) + .Returns((string _, string _, bool _, BasicProperties _, ReadOnlyMemory _, CancellationToken ct) => + new ValueTask(Task.Delay(Timeout.Infinite, ct))); + return channel; + } + +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ProducerRetryJitterTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerRetryJitterTests.cs new file mode 100644 index 000000000..375ad09ee --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerRetryJitterTests.cs @@ -0,0 +1,182 @@ +using System.Collections.Concurrent; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public class ProducerRetryJitterTests +{ + // Use a non-zero mean so jitter produces observable spread in [mean*0.5, mean*1.5). + private const ushort RetryCount = 7; + private const ushort RetrySeconds = 10; + + private static Producer CreateProducer() + { + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary + { + [RabbitMQSettingKeys.RetryCount] = RetryCount, + [RabbitMQSettingKeys.RetrySeconds] = RetrySeconds, + }); + + var queue = new Mock(); + queue.SetupGet(q => q.QueueName).Returns("q"); + + var bus = new Mock(); + bus.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + + return new Producer(transport.Object, queue.Object, bus.Object, NullLogger.Instance); + } + + private static void StubLifecycleSurface(Mock connection) + { + connection.SetupGet(c => c.Endpoint).Returns(new AmqpTcpEndpoint("localhost", 5672)); + connection.SetupGet(c => c.ClientProvidedName).Returns("test"); + } + + private static T GetField(Producer producer, string fieldName) => + ProducerInternals.GetField(producer, fieldName); + + private static void SetField(Producer producer, string fieldName, T value) => + ProducerInternals.SetField(producer, fieldName, value); + + [Fact] + public async Task ChannelTransientFailures_UseJitteredDelaysAroundMean() + { + // Drive ChannelTransientException retries by having ExchangeDeclareAsync throw + // ChannelTransientException on every attempt. ChannelTransientException is caught by + // ExecuteRetryingPublishAsync without calling MarkResetRequired — the transient path skips + // the reconnect budget and retries via EnsureConnectedAsync's fast path. + // + // Assertions mirror the IsRetriablePublishException test: + // 1. Exactly RetryCount delays are observed. + // 2. Every delay falls in [mean*0.5, mean*1.5). + // 3. At least 2 distinct delays appear across the RetryCount samples. + var producer = CreateProducer(); + + var capturedDelays = new ConcurrentBag(); + producer.RetryDelayForTests = (delay, _) => + { + capturedDelays.Add(delay); + return Task.CompletedTask; + }; + + var channel = new Mock(); + channel.SetupGet(c => c.IsOpen).Returns(true); + channel.Setup(c => c.ExchangeDeclareAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny?>(), It.IsAny(), It.IsAny(), + It.IsAny())) + .ThrowsAsync(new ChannelTransientException("simulated transient channel tear-down")); + + // Set _model and _connected so EnsureConnectedAsync fast-paths on every attempt — + // ChannelTransientException does not call MarkResetRequired, so no reconnect runs. + SetField(producer, "_model", channel.Object); + SetField(producer, "_connected", true); + + // Do NOT stamp _declaredExchanges: EnsureExchangeDeclaredAsync must run so that + // ExchangeDeclareAsync is called and throws ChannelTransientException. + + // After RetryCount retries the exception propagates on the final attempt. + await Assert.ThrowsAsync(() => + producer.PublishAsync(typeof(object), new byte[] { 1, 2, 3 })); + + var delays = capturedDelays.ToArray(); + Assert.Equal(RetryCount, delays.Length); + + var meanSeconds = (double)RetrySeconds; + var low = TimeSpan.FromSeconds(meanSeconds * 0.5); + var high = TimeSpan.FromSeconds(meanSeconds * 1.5); + foreach (var d in delays) + { + Assert.InRange(d, low, high); + } + + // Jitter must produce at least 2 distinct values across RetryCount=7 samples. + var distinctCount = delays.Distinct().Count(); + Assert.True(distinctCount >= 2, + $"Expected at least 2 distinct retry delays; got {distinctCount} distinct value(s) from {delays.Length} samples. " + + "All delays identical indicates no jitter is applied."); + } + + [Fact] + public async Task RetrieablePublishFailures_UseJitteredDelaysAroundMean() + { + // Drive BasicPublishAsync failures (classified as retriable by IsRetriablePublishException) + // across all RetryCount retry slots. The RetryDelayForTests seam intercepts each + // computed delay so the exact durations can be inspected. + // + // Assertions: + // 1. Exactly RetryCount delays are observed (one per retry, final attempt does not delay). + // 2. Every delay falls in [mean*0.5, mean*1.5) — JitteredRetryDelay's contract. + // 3. At least 2 distinct delays appear across the RetryCount samples. With a fixed + // delay all samples are identical; with ±50% uniform jitter the probability that + // 7 independent samples resolve to the same nanosecond is negligible (<1e-90). + var producer = CreateProducer(); + + var capturedDelays = new ConcurrentBag(); + producer.RetryDelayForTests = (delay, _) => + { + capturedDelays.Add(delay); + return Task.CompletedTask; + }; + + var channel = new Mock(); + channel.SetupGet(c => c.IsOpen).Returns(true); + channel.Setup(c => c.ExchangeDeclareAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny?>(), It.IsAny(), It.IsAny(), + It.IsAny())) + .Returns(Task.CompletedTask); + channel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .ThrowsAsync(new InvalidOperationException("simulated publish failure")); + + SetField(producer, "_model", channel.Object); + SetField(producer, "_connected", true); + + // Stamp the declared-exchange cache so the first attempt skips ExchangeDeclareAsync. + // Subsequent attempts reconnect (MarkResetRequired clears the cache) and re-declare. + var declaredExchanges = GetField>(producer, "_declaredExchanges"); + declaredExchanges["SystemObject"] = 0L; + + // CreateConnectionForTests wires reconnect attempts (MarkResetRequired triggers + // EnsureConnectedAsync to rebuild the channel on every retry after the first attempt). + var connection = new Mock(); + StubLifecycleSurface(connection); + connection.SetupGet(c => c.IsOpen).Returns(true); + connection + .Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(channel.Object); + producer.CreateConnectionForTests = (_, _, _, _) => Task.FromResult(connection.Object); + + // After RetryCount retries (delays fired on attempts 0 through RetryCount-1) + // the exception propagates on attempt RetryCount. + await Assert.ThrowsAsync(() => + producer.PublishAsync(typeof(object), new byte[] { 1, 2, 3 })); + + var delays = capturedDelays.ToArray(); + Assert.Equal(RetryCount, delays.Length); + + var meanSeconds = (double)RetrySeconds; + var low = TimeSpan.FromSeconds(meanSeconds * 0.5); + var high = TimeSpan.FromSeconds(meanSeconds * 1.5); + foreach (var d in delays) + { + Assert.InRange(d, low, high); + } + + // Jitter must produce at least 2 distinct values across RetryCount=7 samples. + var distinctCount = delays.Distinct().Count(); + Assert.True(distinctCount >= 2, + $"Expected at least 2 distinct retry delays; got {distinctCount} distinct value(s) from {delays.Length} samples. " + + "All delays identical indicates no jitter is applied."); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ProducerRetryTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerRetryTests.cs new file mode 100644 index 000000000..78efcaadb --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerRetryTests.cs @@ -0,0 +1,538 @@ +using System.Collections.Concurrent; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public class ProducerRetryTests +{ + private static Producer CreateProducer() + { + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary + { + [RabbitMQSettingKeys.RetryCount] = (ushort)2, + [RabbitMQSettingKeys.RetrySeconds] = (ushort)0, + }); + + var queue = new Mock(); + queue.SetupGet(q => q.QueueName).Returns("q"); + + var bus = new Mock(); + bus.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + + return new Producer(transport.Object, queue.Object, bus.Object, NullLogger.Instance); + } + + // Stamps the connection-lifecycle properties read by ProducerConnection's source-gen + // log emit (ProducerConnectionOpened) onto a strict IConnection mock. Without these + // setups the strict mock would throw on Endpoint/ClientProvidedName access from + // ResolveEndpoint, masking the actual test scenario as an "unexpected invocation". + private static void StubLifecycleSurface(Mock connection) + { + connection.SetupGet(c => c.Endpoint).Returns(new AmqpTcpEndpoint("localhost", 5672)); + connection.SetupGet(c => c.ClientProvidedName).Returns("test"); + } + + private static void SetField(Producer producer, string fieldName, T value) => + ProducerInternals.SetField(producer, fieldName, value); + + private static T GetField(Producer producer, string fieldName) => + ProducerInternals.GetField(producer, fieldName); + + [Fact] + public async Task PublishAsync_WhenFirstPublishFails_ReconnectsAndRetriesSuccessfully() + { + // The publish-side retry triggers the reset-required flag, and the next attempt's + // EnsureConnectedAsync drives the recreate via CreateConnectionAsync. The test seam + // therefore uses CreateConnectionForTests: the second connection serves the second + // (healthy) channel. + var producer = CreateProducer(); + var firstChannel = new Mock(); + firstChannel.SetupGet(c => c.IsOpen).Returns(true); + var secondChannel = new Mock(); + secondChannel.SetupGet(c => c.IsOpen).Returns(true); + var declaredExchanges = GetField>(producer, "_declaredExchanges"); + declaredExchanges["SystemObject"] = 0L; + + firstChannel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .ThrowsAsync(new InvalidOperationException("first publish failed")); + + secondChannel.Setup(c => c.ExchangeDeclareAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny?>(), It.IsAny(), It.IsAny(), + It.IsAny())) + .Returns(Task.CompletedTask); + + secondChannel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns(ValueTask.CompletedTask); + + SetField(producer, "_model", firstChannel.Object); + SetField(producer, "_connected", true); + + var secondConnection = new Mock(); + StubLifecycleSurface(secondConnection); + secondConnection.SetupGet(c => c.IsOpen).Returns(true); + secondConnection + .Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(secondChannel.Object); + producer.CreateConnectionForTests = (_, _, _, _) => Task.FromResult(secondConnection.Object); + + await producer.PublishAsync(typeof(object), new byte[] { 1, 2, 3 }); + + firstChannel.Verify(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Once); + secondChannel.Verify(c => c.ExchangeDeclareAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny?>(), It.IsAny(), It.IsAny(), + It.IsAny()), Times.Once); + secondChannel.Verify(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Once); + } + + [Fact] + public async Task PublishAsync_WhenPublishIsCanceled_DoesNotReconnectOrRetry() + { + var producer = CreateProducer(); + var channel = new Mock(); + channel.SetupGet(c => c.IsOpen).Returns(true); + var declaredExchanges = GetField>(producer, "_declaredExchanges"); + declaredExchanges["SystemObject"] = 0L; + using var cancellationSource = new CancellationTokenSource(); + var cancellationToken = cancellationSource.Token; + var connectionAttempts = 0; + + channel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .ThrowsAsync(new OperationCanceledException("publish canceled", cancellationToken)); + + SetField(producer, "_model", channel.Object); + SetField(producer, "_connected", true); + // The reconnect-on-retry path goes through CreateConnectionAsync; the assertion that + // cancellation does NOT trigger a retry shifts to counting connect attempts. OCE + // remains non-retriable so this seam should never fire. + producer.CreateConnectionForTests = (_, _, _, _) => + { + Interlocked.Increment(ref connectionAttempts); + var conn = new Mock(); + StubLifecycleSurface(conn); + conn.SetupGet(c => c.IsOpen).Returns(true); + conn.Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(channel.Object); + return Task.FromResult(conn.Object); + }; + + var ex = await Assert.ThrowsAsync(() => + producer.PublishAsync(typeof(object), new byte[] { 1, 2, 3 }, cancellationToken: cancellationToken)); + + Assert.Equal(cancellationToken, ex.CancellationToken); + Assert.Equal(0, connectionAttempts); + channel.Verify(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Once); + } + + [Fact] + public async Task PublishAsync_WhenCanceledDuringReconnect_StopsRetryingPromptly() + { + // The slow-reconnect simulation runs through CreateConnectionForTests: when the + // first publish fails, the next attempt's EnsureConnectedAsync drives + // CreateConnectionAsync, which we hang on the caller token to verify cancellation + // propagates promptly. + var producer = CreateProducer(); + var firstChannel = new Mock(); + firstChannel.SetupGet(c => c.IsOpen).Returns(true); + var declaredExchanges = GetField>(producer, "_declaredExchanges"); + declaredExchanges["SystemObject"] = 0L; + using var cancellationSource = new CancellationTokenSource(); + var cancellationToken = cancellationSource.Token; + var reconnectStarted = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var connectionAttempts = 0; + + firstChannel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .ThrowsAsync(new InvalidOperationException("first publish failed")); + + SetField(producer, "_model", firstChannel.Object); + SetField(producer, "_connected", true); + producer.CreateConnectionForTests = async (_, _, _, ct) => + { + Interlocked.Increment(ref connectionAttempts); + reconnectStarted.TrySetResult(); + await Task.Delay(Timeout.InfiniteTimeSpan, ct); + throw new InvalidOperationException("unreachable"); + }; + + var publishTask = producer.PublishAsync(typeof(object), new byte[] { 1, 2, 3 }, cancellationToken: cancellationToken); + + await reconnectStarted.Task; + cancellationSource.Cancel(); + + var ex = await Assert.ThrowsAnyAsync(() => publishTask); + + Assert.Equal(cancellationToken, ex.CancellationToken); + Assert.Equal(1, connectionAttempts); + firstChannel.Verify(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Once); + } + + [Fact] + public async Task PublishAsync_WhenCanceledDuringInitialConnect_StopsPromptly() + { + var producer = CreateProducer(); + var connectionSemaphore = GetField(producer, "_connectionSemaphore"); + using var cancellationSource = new CancellationTokenSource(); + var cancellationToken = cancellationSource.Token; + + await connectionSemaphore.WaitAsync(); + + try + { + var publishTask = producer.PublishAsync(typeof(object), new byte[] { 1, 2, 3 }, cancellationToken: cancellationToken); + + cancellationSource.Cancel(); + + var ex = await Assert.ThrowsAnyAsync(() => publishTask); + + Assert.Equal(cancellationToken, ex.CancellationToken); + } + finally + { + connectionSemaphore.Release(); + } + } + + [Fact] + public async Task PublishAsync_WhenInitialCreateChannelFails_RetriesAndSucceedsWithoutHanging() + { + var producer = CreateProducer(); + var firstConnection = new Mock(MockBehavior.Strict); + var secondConnection = new Mock(MockBehavior.Strict); + var secondChannel = new Mock(MockBehavior.Strict); + var connectionAttempts = 0; + StubLifecycleSurface(firstConnection); + StubLifecycleSurface(secondConnection); + + firstConnection.SetupGet(c => c.IsOpen).Returns(true); + firstConnection + .Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ThrowsAsync(new InvalidOperationException("first channel create failed")); + firstConnection + .Setup(c => c.CloseAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + firstConnection.Setup(c => c.Dispose()); + + secondConnection + .Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(secondChannel.Object); + + secondChannel.Setup(c => c.ExchangeDeclareAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny?>(), It.IsAny(), It.IsAny(), + It.IsAny())) + .Returns(Task.CompletedTask); + secondChannel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns(ValueTask.CompletedTask); + + producer.CreateConnectionForTests = (_, _, _, _) => + { + connectionAttempts++; + return Task.FromResult(connectionAttempts == 1 ? firstConnection.Object : secondConnection.Object); + }; + + await producer.PublishAsync(typeof(object), new byte[] { 1, 2, 3 }).WaitAsync(TimeSpan.FromSeconds(1)); + + Assert.Equal(2, connectionAttempts); + firstConnection.Verify(c => c.CloseAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny()), Times.Once); + firstConnection.Verify(c => c.Dispose(), Times.Once); + secondChannel.Verify(c => c.ExchangeDeclareAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny?>(), It.IsAny(), It.IsAny(), + It.IsAny()), Times.Once); + secondChannel.Verify(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Once); + } + + [Fact] + public async Task PublishAsync_WhenCreateChannelIsCanceled_DisposesPartialConnectionAndClearsConnectionState() + { + var producer = CreateProducer(); + var connection = new Mock(MockBehavior.Strict); + using var cancellationSource = new CancellationTokenSource(); + var cancellationToken = cancellationSource.Token; + StubLifecycleSurface(connection); + + connection.SetupGet(c => c.IsOpen).Returns(true); + connection + .Setup(c => c.CreateChannelAsync(It.IsAny(), It.Is(ct => ct == cancellationToken))) + .ThrowsAsync(new OperationCanceledException("create channel canceled", cancellationToken)); + connection + .Setup(c => c.CloseAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + connection.Setup(c => c.Dispose()); + + producer.CreateConnectionForTests = (_, _, _, ct) => + { + Assert.Equal(cancellationToken, ct); + return Task.FromResult(connection.Object); + }; + + var ex = await Assert.ThrowsAsync(() => + producer.PublishAsync(typeof(object), new byte[] { 1, 2, 3 }, cancellationToken: cancellationToken)); + + Assert.Equal(cancellationToken, ex.CancellationToken); + Assert.Null(GetField(producer, "_connection")); + Assert.False(GetField(producer, "_connected")); + connection.Verify(c => c.CloseAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny()), Times.Once); + connection.Verify(c => c.Dispose(), Times.Once); + } + + [Fact] + public async Task PublishAsync_WhenCreateChannelIsCanceled_UsesCallerTokenAtConnectBoundary() + { + var producer = CreateProducer(); + var connection = new Mock(MockBehavior.Strict); + using var cancellationSource = new CancellationTokenSource(); + var cancellationToken = cancellationSource.Token; + CancellationToken? createConnectionToken = null; + var createChannelStarted = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + StubLifecycleSurface(connection); + + connection + .Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .Returns(async (_, ct) => + { + createChannelStarted.TrySetResult(); + await Task.Delay(Timeout.InfiniteTimeSpan, ct); + throw new InvalidOperationException("unreachable"); + }); + + producer.CreateConnectionForTests = (_, _, _, ct) => + { + createConnectionToken = ct; + return Task.FromResult(connection.Object); + }; + + var publishTask = producer.PublishAsync(typeof(object), new byte[] { 1, 2, 3 }, cancellationToken: cancellationToken); + + await createChannelStarted.Task; + cancellationSource.Cancel(); + + var ex = await Assert.ThrowsAnyAsync(() => publishTask); + + Assert.Equal(cancellationToken, createConnectionToken); + Assert.Equal(cancellationToken, ex.CancellationToken); + connection.Verify(c => c.CreateChannelAsync(It.IsAny(), It.Is(ct => ct == cancellationToken)), Times.Once); + } + + [Fact] + public async Task PublishAsync_WhenExchangeDeclareFails_ReconnectsAndRetriesSuccessfully() + { + // Migrated from ReconnectForTests to CreateConnectionForTests: see + // PublishAsync_WhenFirstPublishFails for the rationale. + var producer = CreateProducer(); + var firstChannel = new Mock(); + firstChannel.SetupGet(c => c.IsOpen).Returns(true); + var secondChannel = new Mock(); + secondChannel.SetupGet(c => c.IsOpen).Returns(true); + + firstChannel.Setup(c => c.ExchangeDeclareAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny?>(), It.IsAny(), It.IsAny(), + It.IsAny())) + .ThrowsAsync(new InvalidOperationException("declare failed")); + + secondChannel.Setup(c => c.ExchangeDeclareAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny?>(), It.IsAny(), It.IsAny(), + It.IsAny())) + .Returns(Task.CompletedTask); + secondChannel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns(ValueTask.CompletedTask); + + SetField(producer, "_model", firstChannel.Object); + SetField(producer, "_connected", true); + + var secondConnection = new Mock(); + StubLifecycleSurface(secondConnection); + secondConnection.SetupGet(c => c.IsOpen).Returns(true); + secondConnection + .Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(secondChannel.Object); + producer.CreateConnectionForTests = (_, _, _, _) => Task.FromResult(secondConnection.Object); + + await producer.PublishAsync(typeof(object), new byte[] { 1, 2, 3 }); + + secondChannel.Verify(c => c.ExchangeDeclareAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny?>(), It.IsAny(), It.IsAny(), + It.IsAny()), Times.Once); + secondChannel.Verify(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Once); + } + + [Fact] + public async Task PublishAsync_WhenExchangeDeclareIsCanceled_DoesNotReconnectOrRetry() + { + var producer = CreateProducer(); + var channel = new Mock(MockBehavior.Strict); + channel.SetupGet(c => c.IsOpen).Returns(true); + using var cancellationSource = new CancellationTokenSource(); + var cancellationToken = cancellationSource.Token; + var connectionAttempts = 0; + + channel.Setup(c => c.ExchangeDeclareAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny?>(), It.IsAny(), It.IsAny(), + It.Is(ct => ct == cancellationToken))) + .ThrowsAsync(new OperationCanceledException("declare canceled", cancellationToken)); + + SetField(producer, "_model", channel.Object); + SetField(producer, "_connected", true); + // Migrated to CreateConnectionForTests: counts retry-driven reconnect attempts. + producer.CreateConnectionForTests = (_, _, _, _) => + { + Interlocked.Increment(ref connectionAttempts); + var conn = new Mock(); + StubLifecycleSurface(conn); + conn.SetupGet(c => c.IsOpen).Returns(true); + conn.Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(channel.Object); + return Task.FromResult(conn.Object); + }; + + var ex = await Assert.ThrowsAsync(() => + producer.PublishAsync(typeof(object), new byte[] { 1, 2, 3 }, cancellationToken: cancellationToken)); + + Assert.Equal(cancellationToken, ex.CancellationToken); + Assert.Equal(0, connectionAttempts); + channel.Verify(c => c.ExchangeDeclareAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny?>(), It.IsAny(), It.IsAny(), + It.Is(ct => ct == cancellationToken)), Times.Once); + } + + [Fact] + public async Task SendAsync_ByEndpoint_WhenCreateConnectionThrowsOnFirstAttempt_RecoversAndPublishes() + { + // Gap 3: CreateConnectionAsync throws on the first attempt, succeeds on the second. + // The producer must transparently recover via the built-in retry loop and the + // publish must eventually succeed — no exception surfaces to the caller. + var producer = CreateProducer(); + var firstConnection = new Mock(MockBehavior.Strict); + var secondConnection = new Mock(MockBehavior.Strict); + var secondChannel = new Mock(MockBehavior.Strict); + var connectionAttempts = 0; + StubLifecycleSurface(firstConnection); + StubLifecycleSurface(secondConnection); + + firstConnection.SetupGet(c => c.IsOpen).Returns(true); + firstConnection + .Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ThrowsAsync(new InvalidOperationException("channel create failed on first attempt")); + firstConnection + .Setup(c => c.CloseAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + firstConnection.Setup(c => c.Dispose()); + + secondConnection + .Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(secondChannel.Object); + + secondChannel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns(ValueTask.CompletedTask); + + producer.CreateConnectionForTests = (_, _, _, _) => + { + connectionAttempts++; + return Task.FromResult(connectionAttempts == 1 ? firstConnection.Object : secondConnection.Object); + }; + + await producer.SendAsync("target-endpoint", typeof(object), new byte[] { 1, 2, 3 }) + .WaitAsync(TimeSpan.FromSeconds(2)); + + Assert.Equal(2, connectionAttempts); + secondChannel.Verify(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Once); + } + + [Fact] + public async Task SendAsync_ByEndpoint_WhenFirstPublishFails_ReconnectsAndRetriesSuccessfully() + { + // Migrated from ReconnectForTests to CreateConnectionForTests. + var producer = CreateProducer(); + var firstChannel = new Mock(); + firstChannel.SetupGet(c => c.IsOpen).Returns(true); + var secondChannel = new Mock(); + secondChannel.SetupGet(c => c.IsOpen).Returns(true); + + firstChannel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .ThrowsAsync(new InvalidOperationException("first publish failed")); + + secondChannel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns(ValueTask.CompletedTask); + + SetField(producer, "_model", firstChannel.Object); + SetField(producer, "_connected", true); + + var secondConnection = new Mock(); + StubLifecycleSurface(secondConnection); + secondConnection.SetupGet(c => c.IsOpen).Returns(true); + secondConnection + .Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(secondChannel.Object); + producer.CreateConnectionForTests = (_, _, _, _) => Task.FromResult(secondConnection.Object); + + await producer.SendAsync("endpoint", typeof(object), new byte[] { 1, 2, 3 }); + + secondChannel.Verify(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Once); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ProducerSendAsyncFanoutTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerSendAsyncFanoutTests.cs new file mode 100644 index 000000000..19f91fe6a --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerSendAsyncFanoutTests.cs @@ -0,0 +1,306 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Microsoft.Extensions.Time.Testing; +using Moq; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Tests for the fan-out partial-failure matrix of +/// . +/// +/// Tests 2 and 3 are intentionally RED until Task B.2 switches the loop to +/// continue-on-failure with AggregateException collection. Tests 1 and 4 +/// exercise behaviour that already holds under the current fail-fast loop. +/// +public sealed class ProducerSendAsyncFanoutTests +{ + // Shared body and headers used by every test. + private static readonly ReadOnlyMemory Body = new byte[] { 0xDE, 0xAD, 0xBE }; + private static readonly IReadOnlyDictionary Headers = + new Dictionary(StringComparer.Ordinal); + + /// + /// Builds a wired to a mock channel whose + /// BasicPublishAsync delegates to , + /// with a queue mapping of TestMessage → ["q1", "q2", "q3"]. + /// Returns both the producer and the mock channel so callers can verify + /// per-routing-key invocations afterward. + /// + private static (Producer Producer, Mock Channel) BuildProducerWithChannel( + Func, CancellationToken, ValueTask> publishHandler) + { + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + // RetryCount = 0 prevents the retry loop from delaying or wrapping the thrown exception + // in an extra AggregateException layer. The tests care about the exceptions thrown by + // the fan-out loop itself, not by Retry.DoAsync's wrapping behaviour. + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary + { + [RabbitMQSettingKeys.RetryCount] = (ushort)0, + }); + + var queueConfig = new Mock(); + queueConfig.SetupGet(q => q.QueueName).Returns("source-q"); + IReadOnlyList endpoints = ["q1", "q2", "q3"]; + queueConfig.Setup(q => q.TryGetQueueMapping(typeof(TestMessage), out endpoints!)).Returns(true); + + var busConfig = new Mock(); + busConfig.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + + var channel = new Mock(); + channel.SetupGet(c => c.IsOpen).Returns(true); + channel + .Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns((string ex, string rk, bool m, BasicProperties bp, ReadOnlyMemory body, CancellationToken ct) + => publishHandler(ex, rk, m, bp, body, ct)); + channel + .Setup(c => c.ExchangeDeclareAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny>(), false, false, + It.IsAny())) + .Returns(Task.CompletedTask); + + var producer = new Producer( + transport.Object, + queueConfig.Object, + busConfig.Object, + NullLogger.Instance, + new FakeTimeProvider()); + + var fakeConnection = new Mock(); + fakeConnection.SetupGet(c => c.IsOpen).Returns(true); + fakeConnection + .Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(channel.Object); + producer.CreateConnectionForTests = (_, _, _, _) => Task.FromResult(fakeConnection.Object); + + return (producer, channel); + } + + // ------------------------------------------------------------------------- + // Test 1 — all endpoints succeed + // ------------------------------------------------------------------------- + + [Fact] + public async Task SendAsync_AllEndpointsSucceed_NoException() + { + int callCount = 0; + var (producer, _) = BuildProducerWithChannel((_, _, _, _, _, _) => + { + callCount++; + return ValueTask.CompletedTask; + }); + + // No exception should be thrown. + await producer.SendAsync(typeof(TestMessage), Body, Headers, CancellationToken.None); + + // All three endpoints must have been published to. + Assert.Equal(3, callCount); + } + + // ------------------------------------------------------------------------- + // Test 2 — single endpoint fails: expect AggregateException, others attempted + // (RED until Task B.2 — current loop rethrows directly and never reaches q2/q3) + // ------------------------------------------------------------------------- + + [Fact] + public async Task SendAsync_SingleEndpointFails_AggregateExceptionWithOneInner_OtherEndpointsAttempted() + { + // TimeoutException is non-retriable (IsRetriablePublishException returns false), so + // Retry.DoAsync rethrows it directly rather than wrapping it in AggregateException. + // This keeps the AggregateException that the test asserts against flat and unambiguous. + var (producer, channel) = BuildProducerWithChannel((_, rk, _, _, _, _) => + { + if (rk == "q1") + { + throw new TimeoutException("q1: broker ack timed out"); + } + return ValueTask.CompletedTask; + }); + + var ex = await Assert.ThrowsAsync( + () => producer.SendAsync(typeof(TestMessage), Body, Headers, CancellationToken.None)); + + Assert.Single(ex.InnerExceptions); + Assert.IsType(ex.InnerExceptions[0]); + + // q2 and q3 must each have been attempted despite q1 failing. + channel.Verify( + c => c.BasicPublishAsync( + It.IsAny(), "q2", It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny()), + Times.Once); + channel.Verify( + c => c.BasicPublishAsync( + It.IsAny(), "q3", It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny()), + Times.Once); + } + + // ------------------------------------------------------------------------- + // Test 3 — all endpoints fail: expect AggregateException with all inners + // (RED until Task B.2 — current loop rethrows on the first failure) + // ------------------------------------------------------------------------- + + [Fact] + public async Task SendAsync_AllEndpointsFail_AggregateExceptionWithAllInners() + { + // TimeoutException is non-retriable (IsRetriablePublishException returns false) so + // Retry.DoAsync propagates it immediately. Using distinct messages lets us verify + // that each endpoint contributed exactly one inner exception. + var (producer, _) = BuildProducerWithChannel((_, rk, _, _, _, _) => + { + throw new TimeoutException($"endpoint {rk}: broker ack timed out"); + }); + + var ex = await Assert.ThrowsAsync( + () => producer.SendAsync(typeof(TestMessage), Body, Headers, CancellationToken.None)); + + Assert.Equal(3, ex.InnerExceptions.Count); + Assert.All(ex.InnerExceptions, e => Assert.IsType(e)); + + // Each of the three endpoint names must appear in exactly one inner exception message. + var messages = ex.InnerExceptions.Cast().Select(e => e.Message).ToList(); + Assert.Contains(messages, m => m.Contains("q1")); + Assert.Contains(messages, m => m.Contains("q2")); + Assert.Contains(messages, m => m.Contains("q3")); + } + + // ------------------------------------------------------------------------- + // Test 4 — cancellation mid-loop: OperationCanceledException propagated directly + // ------------------------------------------------------------------------- + + [Fact] + public async Task SendAsync_CancellationMidLoop_ThrowsOperationCanceledDirectly() + { + using var cts = new CancellationTokenSource(); + + var (producer, channel) = BuildProducerWithChannel((_, rk, _, _, _, _) => + { + if (rk == "q1") + { + // Cancel the token and then throw OperationCanceledException so the loop + // sees a genuine cancellation on q1. Both the current fail-fast loop and the + // B.2 continue-on-failure loop must rethrow this directly rather than wrapping + // it in AggregateException. + cts.Cancel(); + cts.Token.ThrowIfCancellationRequested(); + } + + return ValueTask.CompletedTask; + }); + + await Assert.ThrowsAsync( + () => producer.SendAsync(typeof(TestMessage), Body, Headers, cts.Token)); + + // The loop must have aborted: q2 and q3 should never have been published. + channel.Verify( + c => c.BasicPublishAsync( + It.IsAny(), "q2", It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny()), + Times.Never); + channel.Verify( + c => c.BasicPublishAsync( + It.IsAny(), "q3", It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny()), + Times.Never); + } + + // ------------------------------------------------------------------------- + // Test 5 — prior failures + later cancellation aggregates both + // ------------------------------------------------------------------------- + + [Fact] + public async Task SendAsync_PriorEndpointFailure_ThenCancellation_AggregatesBoth() + { + // q1 fails (non-retriable TimeoutException — accumulated). q2 succeeds. q3 raises + // OCE. Caller must see an AggregateException whose inner exceptions include both + // q1's TimeoutException and q3's OperationCanceledException. + using var cts = new CancellationTokenSource(); + var (producer, _) = BuildProducerWithChannel((_, rk, _, _, _, _) => + { + switch (rk) + { + case "q1": + throw new TimeoutException("q1: broker ack timed out"); + case "q2": + return ValueTask.CompletedTask; + case "q3": + cts.Cancel(); + cts.Token.ThrowIfCancellationRequested(); + return ValueTask.CompletedTask; // unreachable + default: + return ValueTask.CompletedTask; + } + }); + + var ex = await Assert.ThrowsAsync( + () => producer.SendAsync(typeof(TestMessage), Body, Headers, cts.Token)); + + Assert.Equal(2, ex.InnerExceptions.Count); + Assert.Contains(ex.InnerExceptions, e => e is TimeoutException); + Assert.Contains(ex.InnerExceptions, e => e is OperationCanceledException); + } + + // ------------------------------------------------------------------------- + // Test 6 — ObjectDisposedException short-circuits the fan-out instead of + // retrying once per endpoint. With prior failures present it + // aggregates them with the ODE; with no priors the ODE propagates raw. + // ------------------------------------------------------------------------- + + [Fact] + public async Task SendAsync_DisposedProducer_ShortCircuitsWithSingleObjectDisposedException() + { + // Every endpoint raises ObjectDisposedException. Without short-circuiting we'd see + // an AggregateException of three identical ODEs; with the typed catch, the very first + // ODE aborts the loop and propagates raw. + var (producer, _) = BuildProducerWithChannel((_, _, _, _, _, _) => + throw new ObjectDisposedException("Producer")); + + var ex = await Assert.ThrowsAsync( + () => producer.SendAsync(typeof(TestMessage), Body, Headers, CancellationToken.None)); + + Assert.Equal("Producer", ex.ObjectName); + } + + [Fact] + public async Task SendAsync_PriorEndpointFailure_ThenObjectDisposed_AggregatesBoth() + { + // q1 fails (TimeoutException). q2 hits ObjectDisposedException. The fan-out must + // abort and surface an AggregateException with both — the prior failure is preserved. + var (producer, _) = BuildProducerWithChannel((_, rk, _, _, _, _) => + { + return rk switch + { + "q1" => throw new TimeoutException("q1: broker ack timed out"), + "q2" => throw new ObjectDisposedException("Producer"), + _ => ValueTask.CompletedTask, + }; + }); + + var ex = await Assert.ThrowsAsync( + () => producer.SendAsync(typeof(TestMessage), Body, Headers, CancellationToken.None)); + + Assert.Equal(2, ex.InnerExceptions.Count); + Assert.Contains(ex.InnerExceptions, e => e is TimeoutException); + Assert.Contains(ex.InnerExceptions, e => e is ObjectDisposedException); + } + + // ------------------------------------------------------------------------- + // Helpers + // ------------------------------------------------------------------------- + + private sealed class TestMessage { } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ProducerSizeLimitTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerSizeLimitTests.cs new file mode 100644 index 000000000..069bdbddc --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerSizeLimitTests.cs @@ -0,0 +1,188 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Verifies that Producer enforces MaximumMessageSize on all outbound publish/send methods +/// before attempting any network I/O. +/// +public class ProducerSizeLimitTests +{ + private const long SmallLimit = 10; // 10 bytes — easy to exceed in tests + + private static Producer MakeProducer(long maxSize = SmallLimit) + { + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + var settings = new Dictionary + { + [RabbitMQSettingKeys.MessageSize] = maxSize, + [RabbitMQSettingKeys.RetryCount] = (ushort)0, + [RabbitMQSettingKeys.RetrySeconds] = (ushort)0, + }; + transport.SetupGet(t => t.ClientSettings).Returns(settings); + + var queue = new Mock(); + queue.SetupGet(q => q.QueueName).Returns("q"); + + var bus = new Mock(); + bus.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + + return new Producer(transport.Object, queue.Object, bus.Object, NullLogger.Instance); + } + + private static byte[] OversizedMessage(long limit) => new byte[limit + 1]; + private static byte[] ExactSizeMessage(long limit) => new byte[limit]; + + // ─── PublishAsync ─────────────────────────────────────────────────────── + + [Fact] + public async Task PublishAsync_OversizedMessage_ThrowsInvalidOperationException() + { + var producer = MakeProducer(); + var ex = await Assert.ThrowsAsync( + () => producer.PublishAsync(typeof(object), OversizedMessage(SmallLimit))); + + Assert.Contains($"{SmallLimit + 1} bytes", ex.Message); + Assert.Contains($"{SmallLimit} bytes", ex.Message); + } + + [Fact] + public async Task PublishAsync_ExactLimitMessage_DoesNotThrow() + { + // Exact-size message should pass the guard. The method will then attempt + // network I/O which will fail because there is no broker — but the + // InvalidOperationException from the size guard must NOT be thrown. + var producer = MakeProducer(); + var ex = await Record.ExceptionAsync( + () => producer.PublishAsync(typeof(object), ExactSizeMessage(SmallLimit))); + + Assert.False(ex is InvalidOperationException ioex && ioex.Message.Contains("exceeds maximum"), + "Size guard should not fire for a message exactly at the limit."); + } + + // ─── SendAsync(Type, byte[], …) ───────────────────────────────────────── + + [Fact] + public async Task SendAsync_ByType_OversizedMessage_ThrowsInvalidOperationException() + { + var producer = MakeProducer(); + var ex = await Assert.ThrowsAsync( + () => producer.SendAsync(typeof(object), OversizedMessage(SmallLimit))); + + Assert.Contains($"{SmallLimit + 1} bytes", ex.Message); + } + + [Fact] + public async Task SendAsync_ByType_ExactLimitMessage_DoesNotThrow() + { + var producer = MakeProducer(); + var ex = await Record.ExceptionAsync( + () => producer.SendAsync(typeof(object), ExactSizeMessage(SmallLimit))); + + Assert.False(ex is InvalidOperationException ioex && ioex.Message.Contains("exceeds maximum"), + "Size guard should not fire for a message exactly at the limit."); + } + + // ─── SendAsync(string endPoint, Type, byte[], …) ──────────────────────── + + [Fact] + public async Task SendAsync_ByEndpoint_OversizedMessage_ThrowsInvalidOperationException() + { + var producer = MakeProducer(); + var ex = await Assert.ThrowsAsync( + () => producer.SendAsync("some-queue", typeof(object), OversizedMessage(SmallLimit))); + + Assert.Contains($"{SmallLimit + 1} bytes", ex.Message); + } + + [Fact] + public async Task SendAsync_ByEndpoint_ExactLimitMessage_DoesNotThrow() + { + var producer = MakeProducer(); + var ex = await Record.ExceptionAsync( + () => producer.SendAsync("some-queue", typeof(object), ExactSizeMessage(SmallLimit))); + + Assert.False(ex is InvalidOperationException ioex && ioex.Message.Contains("exceeds maximum"), + "Size guard should not fire for a message exactly at the limit."); + } + + // ─── SendBytesAsync ───────────────────────────────────────────────────── + + [Fact] + public async Task SendBytesAsync_OversizedPacket_ThrowsInvalidOperationException() + { + var producer = MakeProducer(); + var ex = await Assert.ThrowsAsync( + () => producer.SendBytesAsync("some-queue", typeof(byte[]), OversizedMessage(SmallLimit))); + + Assert.Contains($"{SmallLimit + 1} bytes", ex.Message); + } + + [Fact] + public async Task SendBytesAsync_ExactLimitPacket_DoesNotThrow() + { + var producer = MakeProducer(); + var ex = await Record.ExceptionAsync( + () => producer.SendBytesAsync("some-queue", typeof(byte[]), ExactSizeMessage(SmallLimit))); + + Assert.False(ex is InvalidOperationException ioex && ioex.Message.Contains("exceeds maximum"), + "Size guard should not fire for a packet exactly at the limit."); + } + + // ─── Endpoint validation ──────────────────────────────────────────────── + // Blank endpoints publish to the default exchange with mandatory:false and + // are silently dropped. SendAsync validates this; SendBytesAsync must too. + + [Theory] + [InlineData("")] + [InlineData(" ")] + [InlineData("\t")] + public async Task SendBytesAsync_BlankEndpoint_ThrowsArgumentException(string endpoint) + { + var producer = MakeProducer(); + var ex = await Assert.ThrowsAsync( + () => producer.SendBytesAsync(endpoint, typeof(byte[]), new byte[] { 1 })); + + Assert.Contains("empty endpoint", ex.Message); + } + + [Fact] + public async Task SendBytesAsync_NullEndpoint_ThrowsArgumentException() + { + var producer = MakeProducer(); + await Assert.ThrowsAsync( + () => producer.SendBytesAsync(null!, typeof(byte[]), new byte[] { 1 })); + } + + // ─── MaximumMessageSize property honours config ────────────────────────── + + [Fact] + public void MaximumMessageSize_ReflectsClientSetting() + { + var producer = MakeProducer(maxSize: 128 * 1024); + Assert.Equal(128 * 1024, producer.MaximumMessageSize); + } + + [Fact] + public void MaximumMessageSize_DefaultsTo64KiB_WhenSettingAbsent() + { + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary()); // no MessageSize entry + + var queue = new Mock(); + queue.SetupGet(q => q.QueueName).Returns("q"); + + var bus = new Mock(); + bus.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + + var producer = new Producer(transport.Object, queue.Object, bus.Object, NullLogger.Instance); + + Assert.Equal(64 * 1024, producer.MaximumMessageSize); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/ProducerStartupValidatorTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerStartupValidatorTests.cs new file mode 100644 index 000000000..9f785dd19 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/ProducerStartupValidatorTests.cs @@ -0,0 +1,93 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public class ProducerStartupValidatorTests +{ + private static (Mock transport, Mock queue, Mock bus) BuildMocks( + Dictionary? extraSettings = null) + { + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + var settings = new Dictionary + { + [RabbitMQSettingKeys.RetryCount] = (ushort)1, + [RabbitMQSettingKeys.RetrySeconds] = (ushort)0, + }; + if (extraSettings != null) + { + foreach (var kvp in extraSettings) + { + settings[kvp.Key] = kvp.Value; + } + } + transport.SetupGet(t => t.ClientSettings).Returns(settings); + + var queue = new Mock(); + queue.SetupGet(q => q.QueueName).Returns("q"); + + var bus = new Mock(); + bus.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + + return (transport, queue, bus); + } + + [Fact] + public void Constructor_DefaultPublisherAcksIsTrue() + { + // Default config — no PublisherAcknowledgements override, no PublishTimeout override. + // Construction must not throw under defaults; the absence of an exception proves the + // default is "acks on, timeout valid" rather than "acks off, timeout-not-meaningful". + var (transport, queue, bus) = BuildMocks(); + _ = new Producer(transport.Object, queue.Object, bus.Object, NullLogger.Instance); + } + + [Fact] + public void Constructor_RejectsAcksFalseWithNonzeroPublishTimeout() + { + var (transport, queue, bus) = BuildMocks(new Dictionary + { + [RabbitMQSettingKeys.PublisherAcknowledgements] = false, + [RabbitMQSettingKeys.PublishTimeout] = TimeSpan.FromSeconds(5), + }); + + var ex = Assert.Throws(() => + new Producer(transport.Object, queue.Object, bus.Object, NullLogger.Instance)); + Assert.Contains("PublisherAcknowledgements", ex.Message); + Assert.Contains("PublishTimeout", ex.Message); + } + + [Fact] + public void Constructor_AllowsAcksFalseWithInfiniteTimeout() + { + // Caller explicitly opts out of acks AND sets PublishTimeout to Infinite (so they're + // not relying on broker confirms for timeout enforcement). Construction succeeds. + var (transport, queue, bus) = BuildMocks(new Dictionary + { + [RabbitMQSettingKeys.PublisherAcknowledgements] = false, + [RabbitMQSettingKeys.PublishTimeout] = Timeout.InfiniteTimeSpan, + }); + + _ = new Producer(transport.Object, queue.Object, bus.Object, NullLogger.Instance); + } + + [Fact] + public void Constructor_AllowsAcksFalseWithZeroTimeout() + { + // The validator's error message advertises TimeSpan.Zero as a valid remediation + // alongside Timeout.InfiniteTimeSpan. Pin both escape hatches with their own tests + // so a future tightening of the guard (e.g. >= TimeSpan.Zero) cannot silently + // contradict the documented advice. + var (transport, queue, bus) = BuildMocks(new Dictionary + { + [RabbitMQSettingKeys.PublisherAcknowledgements] = false, + [RabbitMQSettingKeys.PublishTimeout] = TimeSpan.Zero, + }); + + _ = new Producer(transport.Object, queue.Object, bus.Object, NullLogger.Instance); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMQExtensionsTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMQExtensionsTests.cs new file mode 100644 index 000000000..e906659ed --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMQExtensionsTests.cs @@ -0,0 +1,89 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Client.RabbitMQ.Configuration; +using ServiceConnect.Configuration; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public class RabbitMQExtensionsTests +{ + [Fact] + public void UseRabbitMQ_RegistersProducerAndConsumer() + { + var builder = new ServiceConnectBuilder(); + + builder.UseRabbitMQ(); + + // Verify registration action was added and resolves IProducer/IConsumer + Assert.Single(builder.AdditionalRegistrations); + var services = new ServiceCollection(); + builder.AdditionalRegistrations[0](services); + + Assert.Contains(services, sd => sd.ServiceType == typeof(IProducer)); + Assert.Contains(services, sd => sd.ServiceType == typeof(IConsumer)); + } + + [Fact] + public void UseRabbitMQ_AppliesTransportConfig() + { + var builder = new ServiceConnectBuilder(); + + builder.UseRabbitMQ(t => t.Host = "myhost"); + + Assert.Equal("myhost", builder.BusConfig.Transport.Host); + } + + [Fact] + public void UseRabbitMQ_WithTypedOptions_StuffsClientSettings() + { + var builder = new ServiceConnectBuilder(); + + builder.UseRabbitMQ((RabbitMqOptions opts) => + { + opts.PrefetchCount = 25; + opts.HeartbeatTime = 30; + opts.PublisherAcknowledgements = true; + }); + + var transport = builder.BusConfig.Transport; + Assert.True(transport.ClientSettings.TryGetValue(RabbitMQSettingKeys.PrefetchCount, out var prefetch)); + Assert.Equal((ushort)25, prefetch); + Assert.True(transport.ClientSettings.TryGetValue(RabbitMQSettingKeys.HeartbeatTime, out var heartbeat)); + Assert.Equal((ushort)30, heartbeat); + Assert.True(transport.ClientSettings.TryGetValue(RabbitMQSettingKeys.PublisherAcknowledgements, out var acks)); + Assert.Equal(true, acks); + } + + [Fact] + public void UseRabbitMQ_WithTypedOptions_NullPropertyLeavesClientSettingsUntouched() + { + var builder = new ServiceConnectBuilder(); + // Pre-seed a value via the stringly-typed API before calling the typed overload. + builder.ConfigureTransport(t => t.SetClientSetting(RabbitMQSettingKeys.PrefetchCount, (ushort)50)); + + builder.UseRabbitMQ((RabbitMqOptions opts) => + { + opts.HeartbeatTime = 30; // unrelated property — PrefetchCount stays null → must not overwrite + }); + + Assert.True(builder.BusConfig.Transport.ClientSettings.TryGetValue(RabbitMQSettingKeys.PrefetchCount, out var prefetch)); + Assert.Equal((ushort)50, prefetch); // preserved + } + + [Fact] + public void UseRabbitMQ_WithTypedOptions_NullLambda_RegistersProducerAndConsumer() + { + var builder = new ServiceConnectBuilder(); + + builder.UseRabbitMQ((Action?)null); + + Assert.Single(builder.AdditionalRegistrations); + var services = new ServiceCollection(); + builder.AdditionalRegistrations[0](services); + Assert.Contains(services, sd => sd.ServiceType == typeof(IProducer)); + Assert.Contains(services, sd => sd.ServiceType == typeof(IConsumer)); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqAdmissionGateTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqAdmissionGateTests.cs new file mode 100644 index 000000000..f44c77d62 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqAdmissionGateTests.cs @@ -0,0 +1,118 @@ +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Diagnostics; +using ServiceConnect.UnitTests.Diagnostics; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Covers the public surface of : the in-flight +/// gauge emit (paired +1/-1 with identical tags), the shutdown gate (TryAdmit returns +/// false once BeginShutdown fires), and the drain protocol (DrainAsync completes only +/// once every admitted delivery has called Release). +/// +public sealed class RabbitMqAdmissionGateTests +{ + [Fact] + public void TryAdmit_BeforeShutdown_ReturnsTrueAndIncrementsInFlight() + { + var queueName = $"q-{Guid.NewGuid():N}"; + using var collector = new MetricCollector("messaging.destination.name", queueName); + var gate = new RabbitMqAdmissionGate(queueName); + + Assert.True(gate.TryAdmit()); + + var record = Assert.Single(collector.GetLongRecords(MetricNames.InFlightMessages)); + Assert.Equal(1, record.Value); + Assert.Equal("rabbitmq", record.GetTag("messaging.system")); + Assert.Equal(queueName, record.GetTag("messaging.destination.name")); + } + + [Fact] + public void Release_PairedWithAdmit_DecrementsInFlight() + { + var queueName = $"q-{Guid.NewGuid():N}"; + using var collector = new MetricCollector("messaging.destination.name", queueName); + var gate = new RabbitMqAdmissionGate(queueName); + + Assert.True(gate.TryAdmit()); + gate.Release(); + + var records = collector.GetLongRecords(MetricNames.InFlightMessages); + Assert.Equal(2, records.Count); + Assert.Equal(1, records[0].Value); + Assert.Equal(-1, records[1].Value); + // Both records carry identical tags — gauge balances on this contract. + Assert.Equal(queueName, records[1].GetTag("messaging.destination.name")); + Assert.Equal("rabbitmq", records[1].GetTag("messaging.system")); + } + + [Fact] + public void TryAdmit_AfterShutdownBegins_ReturnsFalseAndDoesNotEmit() + { + var queueName = $"q-{Guid.NewGuid():N}"; + using var collector = new MetricCollector("messaging.destination.name", queueName); + var gate = new RabbitMqAdmissionGate(queueName); + + gate.BeginShutdown(); + + Assert.False(gate.TryAdmit()); + Assert.Empty(collector.GetLongRecords(MetricNames.InFlightMessages)); + } + + [Fact] + public async Task DrainAsync_WithNoInFlight_CompletesImmediately() + { + var gate = new RabbitMqAdmissionGate("q"); + await gate.DrainAsync(CancellationToken.None); + } + + [Fact] + public async Task DrainAsync_WaitsForAllInFlightToRelease() + { + var gate = new RabbitMqAdmissionGate("q"); + Assert.True(gate.TryAdmit()); + Assert.True(gate.TryAdmit()); + + gate.BeginShutdown(); + var drainTask = gate.DrainAsync(CancellationToken.None); + Assert.False(drainTask.IsCompleted); + + gate.Release(); + Assert.False(drainTask.IsCompleted); + + gate.Release(); + await drainTask; // completes once last release fires + } + + [Fact] + public async Task DrainAsync_RespectsCancellation() + { + var gate = new RabbitMqAdmissionGate("q"); + Assert.True(gate.TryAdmit()); + gate.BeginShutdown(); + + using var cts = new CancellationTokenSource(); + var drainTask = gate.DrainAsync(cts.Token); + + await cts.CancelAsync(); + // Task.WaitAsync raises TaskCanceledException (derives from OperationCanceledException); + // ThrowsAnyAsync accepts the derived type without coupling the test to the BCL choice. + await Assert.ThrowsAnyAsync(() => drainTask); + } + + [Fact] + public void Constructor_NullQueueName_Throws() + { + Assert.Throws(() => new RabbitMqAdmissionGate(null!)); + } + + [Fact] + public void IsShuttingDown_ReflectsBeginShutdown() + { + var gate = new RabbitMqAdmissionGate("q"); + Assert.False(gate.IsShuttingDown); + gate.BeginShutdown(); + Assert.True(gate.IsShuttingDown); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqChannelHostTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqChannelHostTests.cs new file mode 100644 index 000000000..8356e9f38 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqChannelHostTests.cs @@ -0,0 +1,61 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Verifies the broker-cancelled flag lifecycle on : +/// the flag is set by NotifyBrokerCancelled and explicitly cleared by +/// NotifyRecoverySucceeded so that IBus.IsConsuming and +/// BusConsumingHealthCheck return to the healthy state once RabbitMQ.Client's +/// auto-recovery has restored the consumer. Reset semantics must be idempotent and the +/// flag must remain re-flippable across subsequent cancel/recover cycles. +/// +public sealed class RabbitMqChannelHostTests +{ + [Fact] + public void NotifyRecoverySucceeded_AfterBrokerCancelled_ResetsFlag() + { + var host = CreateChannelHostForTest(); + host.NotifyBrokerCancelled(); + Assert.True(host.IsCancelledByBroker); + + host.NotifyRecoverySucceeded(); + Assert.False(host.IsCancelledByBroker); + } + + [Fact] + public void NotifyRecoverySucceeded_NeverCancelled_IsNoOp() + { + var host = CreateChannelHostForTest(); + Assert.False(host.IsCancelledByBroker); + + host.NotifyRecoverySucceeded(); + Assert.False(host.IsCancelledByBroker); + } + + [Fact] + public void NotifyRecoverySucceeded_AfterCancelAndRecover_ReFlippableOnSubsequentCancel() + { + var host = CreateChannelHostForTest(); + host.NotifyBrokerCancelled(); + host.NotifyRecoverySucceeded(); + Assert.False(host.IsCancelledByBroker); + + // A subsequent broker-cancel must still latch — the recovery reset is not a + // permanent disable, only a per-cycle clear. + host.NotifyBrokerCancelled(); + Assert.True(host.IsCancelledByBroker); + } + + // ── Harness ─────────────────────────────────────────────────────────────── + + private static RabbitMqChannelHost CreateChannelHostForTest() + { + var conn = new Mock(MockBehavior.Loose); + return new RabbitMqChannelHost(conn.Object, NullLogger.Instance, "q"); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerDisposeLifecycleTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerDisposeLifecycleTests.cs new file mode 100644 index 000000000..6e3f4cdf6 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerDisposeLifecycleTests.cs @@ -0,0 +1,125 @@ +using System.Reflection; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMqClient = global::RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Verifies that DisposeAsync, when it times out waiting to acquire the dispose semaphore, +/// leaves the started flag set and does not null out any in-use setup channel. +/// The dispose semaphore (_disposeSemaphore) is independent of the startup semaphore +/// (_startupSemaphore), so a wedged startup cannot block container shutdown. +/// +public class RabbitMqConsumerDisposeLifecycleTests +{ + /// + /// Returns a Consumer configured with ConsumerCount=1 and the supplied DisposeTimeout. + /// The transport and queue mocks are wired with minimal defaults sufficient to construct + /// a Consumer without triggering any real I/O. + /// + private static Consumer CreateConsumer(TimeSpan disposeTimeout, IServiceConnectConnection? connection = null) + { + var transport = new Mock(); + transport.SetupGet(t => t.MaxRetries).Returns(3); + transport.SetupGet(t => t.RetryDelay).Returns(1000); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary()); + + var queue = new Mock(); + queue.SetupGet(q => q.QueueName).Returns("q"); + queue.SetupGet(q => q.ErrorQueueName).Returns("err"); + queue.SetupGet(q => q.AuditQueueName).Returns("audit"); + queue.SetupGet(q => q.PurgeQueueOnStartup).Returns(false); + queue.SetupGet(q => q.AuditingEnabled).Returns(false); + + var bus = new Mock(); + bus.SetupGet(b => b.ConsumerCount).Returns(1); + bus.SetupGet(b => b.DisposeTimeout).Returns(disposeTimeout); + + return new Consumer(transport.Object, queue.Object, bus.Object, NullLogger.Instance, connection); + } + + /// + /// Reads a private instance field via reflection. Throws if the field is not found. + /// + private static T? GetPrivateField(object target, string fieldName) + { + var field = target.GetType().GetField(fieldName, BindingFlags.NonPublic | BindingFlags.Instance) + ?? throw new InvalidOperationException($"Field '{fieldName}' not found on {target.GetType().Name}"); + return (T?)field.GetValue(target); + } + + /// + /// Sets a private instance field via reflection. + /// + private static void SetPrivateField(object target, string fieldName, object? value) + { + var field = target.GetType().GetField(fieldName, BindingFlags.NonPublic | BindingFlags.Instance) + ?? throw new InvalidOperationException($"Field '{fieldName}' not found on {target.GetType().Name}"); + field.SetValue(target, value); + } + + /// + /// Drains the dispose semaphore on the consumer so the next DisposeAsync WaitAsync call times out, + /// simulating a concurrent DisposeAsync that already holds the permit. + /// + private static void DrainDisposeSemaphore(object consumer) + { + var semaphore = GetPrivateField(consumer, "_disposeSemaphore") + ?? throw new InvalidOperationException("_disposeSemaphore was null"); + // Take the one available permit so a subsequent WaitAsync with a short timeout returns false. + semaphore.Wait(TimeSpan.Zero); + } + + [Fact] + public async Task DisposeAsync_when_lifecycle_wait_times_out_does_not_reset_started_flag() + { + // Arrange: construct a consumer with ConsumerCount=1 and a short DisposeTimeout. + var connection = new Mock(); + var consumer = CreateConsumer(TimeSpan.FromMilliseconds(200), connection.Object); + + // Simulate that a concurrent DisposeAsync already holds the dispose semaphore, + // and StartConsumingAsync has CAS'd _started to 1. The second DisposeAsync must + // time out rather than hang indefinitely. + SetPrivateField(consumer, "_started", 1); + DrainDisposeSemaphore(consumer); + + // Act: DisposeAsync should time out acquiring the dispose semaphore. + await consumer.DisposeAsync(); + + // Assert: _started must remain 1. A subsequent StartConsumingAsync must throw + // InvalidOperationException ("already consuming") instead of silently building + // duplicate state. + var started = GetPrivateField(consumer, "_started"); + Assert.Equal(1, started); + } + + [Fact] + public async Task DisposeAsync_when_lifecycle_wait_times_out_does_not_null_model_owned_by_wedged_start() + { + // Arrange: construct a consumer with a short DisposeTimeout. + var connection = new Mock(); + var consumer = CreateConsumer(TimeSpan.FromMilliseconds(200), connection.Object); + + // Set up a sentinel channel to represent the setup channel that an in-flight + // StartConsumingAsync has assigned to _model. Drain the dispose semaphore to + // simulate a concurrent DisposeAsync already holding the permit; this causes + // the next DisposeAsync.WaitAsync to time out and skip teardown. + var sentinelChannel = new Mock().Object; + SetPrivateField(consumer, "_started", 1); + SetPrivateField(consumer, "_model", sentinelChannel); + DrainDisposeSemaphore(consumer); + + // Act: DisposeAsync should time out acquiring the dispose semaphore. + await consumer.DisposeAsync(); + + // Assert: _model must still be the sentinel. Nulling it here would tear down + // a channel still in active use, producing opaque AlreadyClosed exceptions. + var model = GetPrivateField(consumer, "_model"); + Assert.Same(sentinelChannel, model); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostAckNackTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostAckNackTests.cs new file mode 100644 index 000000000..4826af9bd --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostAckNackTests.cs @@ -0,0 +1,201 @@ +using Microsoft.Extensions.Logging; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// The ack/nack block in EventAsync's finally must demote expected-during-teardown +/// conditions to Debug rather than Warning: +/// - null channel captured at delivery entry +/// - channel already closed (IsOpen == false) at ack time +/// Uses the same harness pattern established by RabbitMqConsumerHostHeaderSizeTests. +/// +public sealed class RabbitMqConsumerHostAckNackTests +{ + [Fact] + public async Task EventAsync_ChannelNullDuringFinally_LogsAtDebug() + { + var (host, _, _, capturedLogs) = await BuildHostAsync(); + + // Null out _model on the channel host via reflection so EventAsync's local + // `model` capture sees null. Must happen BEFORE RaiseDeliveryForTests. + var channelHostField = typeof(RabbitMqConsumerHost).GetField( + "_channelHost", + System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic); + var channelHost = channelHostField!.GetValue(host)!; + var modelField = channelHost.GetType().GetField( + "_model", + System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic); + modelField!.SetValue(channelHost, null); + + var args = MakeArgs(); + await host.RaiseDeliveryForTests(args); + + Assert.Contains(capturedLogs, l => l.Level == LogLevel.Debug && l.Message.Contains("Channel was null")); + Assert.DoesNotContain(capturedLogs, l => l.Level == LogLevel.Warning && l.Message.Contains("Channel was null")); + } + + [Fact] + public async Task EventAsync_ChannelClosedDuringFinally_LogsAtDebug_NoAckCalled() + { + var (host, consumerChannel, _, capturedLogs) = await BuildHostAsync(consumerChannelIsOpen: false); + + var args = MakeArgs(); + await host.RaiseDeliveryForTests(args); + + Assert.Contains(capturedLogs, l => l.Level == LogLevel.Debug && l.Message.Contains("Channel was closed")); + consumerChannel.Verify( + c => c.BasicAckAsync(It.IsAny(), It.IsAny(), It.IsAny()), + Times.Never); + consumerChannel.Verify( + c => c.BasicNackAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny()), + Times.Never); + } + + // ── Harness ─────────────────────────────────────────────────────────────── + + /// + /// Builds a with mocked channels and a + /// capturing . Copied from RabbitMqConsumerHostHeaderSizeTests + /// and extended with: + /// - to drive the IsOpen pre-check + /// - captured log entries returned as the fourth tuple element + /// + private static async Task<( + RabbitMqConsumerHost Host, + Mock ConsumerChannel, + Mock PublishChannel, + List CapturedLogs)> BuildHostAsync( + bool consumerChannelIsOpen = true) + { + var capturedLogs = new List(); + + // ── Logger that captures all LogXxx calls ──────────────────────────── + var logger = new Mock(); + logger.Setup(l => l.IsEnabled(It.IsAny())).Returns(true); + logger + .Setup(l => l.Log( + It.IsAny(), + It.IsAny(), + It.IsAny(), + It.IsAny(), + It.IsAny>())) + .Callback(new InvocationAction(invocation => + { + var level = (LogLevel)invocation.Arguments[0]; + var formatter = (Delegate)invocation.Arguments[4]; + var message = (string)formatter.DynamicInvoke(invocation.Arguments[2], invocation.Arguments[3])!; + capturedLogs.Add(new CapturedLog(level, message)); + })); + + // ── Consumer channel ───────────────────────────────────────────────── + var consumerChannel = new Mock(MockBehavior.Strict); + consumerChannel.Setup(c => c.IsOpen).Returns(consumerChannelIsOpen); + consumerChannel.Setup(c => c.BasicQosAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + consumerChannel.Setup(c => c.BasicConsumeAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny(), + It.IsAny?>(), + It.IsAny(), It.IsAny())) + .ReturnsAsync("tag"); + // BasicAckAsync / BasicNackAsync are NOT set up when consumerChannelIsOpen = false + // so that the strict mock throws if either is called — confirming the IsOpen pre-check. + if (consumerChannelIsOpen) + { + consumerChannel.Setup(c => c.BasicAckAsync( + It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(ValueTask.CompletedTask); + consumerChannel.Setup(c => c.BasicNackAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(ValueTask.CompletedTask); + } + + consumerChannel.Setup(c => c.CloseAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + consumerChannel.Setup(c => c.DisposeAsync()).Returns(ValueTask.CompletedTask); + consumerChannel.SetupAdd(c => c.ChannelShutdownAsync += It.IsAny>()); + consumerChannel.SetupRemove(c => c.ChannelShutdownAsync -= It.IsAny>()); + + // ── Publish channel ────────────────────────────────────────────────── + var publishChannel = new Mock(MockBehavior.Loose); + publishChannel + .Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns(ValueTask.CompletedTask); + publishChannel.Setup(c => c.DisposeAsync()).Returns(ValueTask.CompletedTask); + + // ── Connection ─────────────────────────────────────────────────────── + var conn = new Mock(); + conn.Setup(c => c.CreateChannelAsync(It.IsAny())) + .ReturnsAsync(consumerChannel.Object); + conn.Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(publishChannel.Object); + conn.SetupGet(c => c.UnderlyingConnection).Returns((IConnection?)null); + + // ── Transport / queue / bus configuration ──────────────────────────── + var transport = new Mock(); + transport.SetupGet(t => t.MaxRetries).Returns(3); + transport.SetupGet(t => t.PrefetchCount).Returns((ushort)10); + transport.SetupProperty(t => t.GracefulShutdownTimeoutMilliseconds, 5000); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary()); + + var queue = new Mock(); + queue.SetupGet(q => q.QueueName).Returns("q"); + queue.SetupGet(q => q.ErrorQueueName).Returns("err"); + queue.SetupGet(q => q.AuditQueueName).Returns("audit"); + queue.SetupGet(q => q.DisableErrors).Returns(false); + queue.SetupGet(q => q.AuditingEnabled).Returns(false); + + var bus = new Mock(); + bus.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + bus.SetupGet(b => b.DeadLetterUnhandledMessages).Returns(false); + + var retry = new MessageRetryHandler(3, "err", "q", NullLogger.Instance); + var audit = new MessageAuditPublisher(queue.Object); + + var host = new RabbitMqConsumerHost( + conn.Object, transport.Object, queue.Object, bus.Object, + retry, new RabbitMqAdmissionGate("q"), audit, logger.Object); + + await host.StartConsumingAsync( + (_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }), + queueName: "q"); + + return (host, consumerChannel, publishChannel, capturedLogs); + } + + /// + /// Builds a delivery with the minimal headers that get past the type-name + /// admission guard (so callbackAdmitted becomes true and the finally + /// ack/nack block is reached). + /// + private static BasicDeliverEventArgs MakeArgs() + => new( + consumerTag: "ct", + deliveryTag: 1, + redelivered: false, + exchange: "", + routingKey: "q", + properties: new BasicProperties + { + Headers = new Dictionary(StringComparer.Ordinal) + { + [HeaderKeys.FullTypeName] = "Foo.Bar", + }, + }, + body: new byte[] { 1 }); + + private sealed record CapturedLog(LogLevel Level, string Message); +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostBindOrderingTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostBindOrderingTests.cs new file mode 100644 index 000000000..980c7b749 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostBindOrderingTests.cs @@ -0,0 +1,97 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Verifies that Consumer.StartConsumingAsync issues QueueBindAsync before BasicConsumeAsync. +/// RabbitMQ.Client requires per-channel serialisation; binding after BasicConsume violates +/// that contract because an in-flight delivery callback can interleave with the bind. +/// +public sealed class RabbitMqConsumerHostBindOrderingTests +{ + [Fact] + public async Task ConsumerStartConsumingAsync_BindsBeforeBasicConsume() + { + int callOrder = 0; + int? bindOrder = null; + int? consumeOrder = null; + + var consumerChannel = new Mock(MockBehavior.Loose); + consumerChannel.SetupGet(c => c.IsOpen).Returns(true); + consumerChannel + .Setup(c => c.QueueBindAsync(It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny>(), false, It.IsAny())) + .Callback(() => bindOrder ??= Interlocked.Increment(ref callOrder)) + .Returns(Task.CompletedTask); + consumerChannel + .Setup(c => c.BasicConsumeAsync(It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny(), It.IsAny>(), + It.IsAny(), It.IsAny())) + .Callback(() => consumeOrder ??= Interlocked.Increment(ref callOrder)) + .ReturnsAsync("consumer-tag"); + consumerChannel + .Setup(c => c.BasicQosAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + // Setup channel: used for topology provisioning (QueueDeclareAsync, ExchangeDeclareAsync, etc.) + var setupChannel = new Mock(MockBehavior.Loose); + setupChannel.SetupGet(c => c.IsOpen).Returns(true); + + var publishChannel = new Mock(MockBehavior.Loose); + publishChannel.SetupGet(c => c.IsOpen).Returns(true); + + // The connection is called: + // 1st CreateChannelAsync(ct) → setup channel (topology provisioning) + // 2nd CreateChannelAsync(ct) → consumer channel (RabbitMqConsumerHost) + // 3rd CreateChannelAsync(options, ct) → publish channel (RabbitMqConsumerHost) + int createChannelCallIndex = 0; + var connection = new Mock(); + connection + .Setup(c => c.CreateChannelAsync(It.IsAny())) + .ReturnsAsync(() => + { + int idx = Interlocked.Increment(ref createChannelCallIndex); + return idx == 1 ? setupChannel.Object : consumerChannel.Object; + }); + connection + .Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(publishChannel.Object); + connection.SetupGet(c => c.UnderlyingConnection).Returns((IConnection?)null); + + var transport = new Mock(); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary()); + transport.SetupGet(t => t.PrefetchCount).Returns((ushort)1); + transport.SetupGet(t => t.GracefulShutdownTimeoutMilliseconds).Returns(1000); + transport.SetupGet(t => t.MaxRetries).Returns(3); + transport.SetupGet(t => t.RetryDelay).Returns(0); + + var queueConfig = new Mock(); + queueConfig.SetupGet(q => q.QueueName).Returns("main-q"); + queueConfig.SetupGet(q => q.ErrorQueueName).Returns("error.exchange"); + queueConfig.SetupGet(q => q.AuditingEnabled).Returns(false); + queueConfig.SetupGet(q => q.PurgeQueueOnStartup).Returns(false); + queueConfig.SetupGet(q => q.DisableErrors).Returns(false); + + var busConfig = new Mock(); + busConfig.SetupGet(b => b.ConsumerCount).Returns(1); + + var consumer = new Consumer(transport.Object, queueConfig.Object, busConfig.Object, NullLogger.Instance, connection.Object); + + static Task Handler(ReadOnlyMemory body, string type, IDictionary headers, CancellationToken ct) + => Task.FromResult(new ConsumeEventResult { Success = true }); + + await consumer.StartConsumingAsync("main-q", ["MyApp.Foo"], Handler); + + Assert.NotNull(bindOrder); + Assert.NotNull(consumeOrder); + Assert.True(bindOrder < consumeOrder, $"Expected QueueBindAsync ({bindOrder}) before BasicConsumeAsync ({consumeOrder})"); + + await consumer.DisposeAsync(); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostBrokerCancelTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostBrokerCancelTests.cs new file mode 100644 index 000000000..b5785c997 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostBrokerCancelTests.cs @@ -0,0 +1,120 @@ +using System.Reflection; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Verifies that exposes the broker-cancel signal +/// via its internal IsCancelledByBroker getter. The host's +/// OnConsumerUnregisteredAsync handler must flip the flag synchronously so a +/// downstream health probe racing with the broker-cancel event sees Unhealthy on the +/// same tick the operator first sees the warning log. +/// +public sealed class RabbitMqConsumerHostBrokerCancelTests +{ + [Fact] + public async Task NewHost_IsCancelledByBroker_IsFalse() + { + var (host, _, _) = await BuildHostAsync(); + + Assert.False(host.IsCancelledByBroker); + } + + [Fact] + public async Task OnConsumerUnregistered_SetsIsCancelledByBroker() + { + var (host, _, _) = await BuildHostAsync(); + + // OnConsumerUnregisteredAsync is private — invoke via reflection. The signature is + // (object? sender, ConsumerEventArgs args) and ConsumerEventArgs requires a non-null + // string[] of consumer tags. + var method = typeof(RabbitMqConsumerHost).GetMethod( + "OnConsumerUnregisteredAsync", + BindingFlags.Instance | BindingFlags.NonPublic); + Assert.NotNull(method); + + var args = new ConsumerEventArgs(["tag"]); + var result = (Task)method!.Invoke(host, [null, args])!; + await result; + + Assert.True(host.IsCancelledByBroker); + } + + // ── Harness (mirror of RabbitMqConsumerHostInflightCounterTests.BuildHostAsync) ─── + + private static async Task<( + RabbitMqConsumerHost Host, + Mock ConsumerChannel, + Mock PublishChannel)> BuildHostAsync() + { + var consumerChannel = new Mock(MockBehavior.Strict); + consumerChannel.Setup(c => c.IsOpen).Returns(true); + consumerChannel.Setup(c => c.BasicQosAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + consumerChannel.Setup(c => c.BasicConsumeAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny(), + It.IsAny?>(), + It.IsAny(), It.IsAny())) + .ReturnsAsync("tag"); + consumerChannel.Setup(c => c.CloseAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + consumerChannel.Setup(c => c.DisposeAsync()).Returns(ValueTask.CompletedTask); + consumerChannel.SetupAdd(c => c.ChannelShutdownAsync += It.IsAny>()); + consumerChannel.SetupRemove(c => c.ChannelShutdownAsync -= It.IsAny>()); + + var publishChannel = new Mock(MockBehavior.Loose); + publishChannel.Setup(c => c.DisposeAsync()).Returns(ValueTask.CompletedTask); + + var conn = new Mock(); + conn.Setup(c => c.CreateChannelAsync(It.IsAny())) + .ReturnsAsync(consumerChannel.Object); + conn.Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(publishChannel.Object); + conn.SetupGet(c => c.UnderlyingConnection).Returns((IConnection?)null); + + var transport = new Mock(); + transport.SetupGet(t => t.MaxRetries).Returns(3); + transport.SetupGet(t => t.PrefetchCount).Returns((ushort)10); + transport.SetupProperty(t => t.GracefulShutdownTimeoutMilliseconds, 5000); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary()); + + var queue = new Mock(); + queue.SetupGet(q => q.QueueName).Returns("q"); + queue.SetupGet(q => q.ErrorQueueName).Returns("err"); + queue.SetupGet(q => q.AuditQueueName).Returns("audit"); + queue.SetupGet(q => q.DisableErrors).Returns(false); + queue.SetupGet(q => q.AuditingEnabled).Returns(false); + + var bus = new Mock(); + bus.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + bus.SetupGet(b => b.DeadLetterUnhandledMessages).Returns(false); + + var retry = new MessageRetryHandler(3, "err", "q", NullLogger.Instance); + var audit = new MessageAuditPublisher(queue.Object); + + static async Task NoOpHandler( + ReadOnlyMemory _, string __, IDictionary ___, CancellationToken ____) + { + await Task.CompletedTask.ConfigureAwait(false); + return new ConsumeEventResult { Success = true }; + } + + var host = new RabbitMqConsumerHost( + conn.Object, transport.Object, queue.Object, bus.Object, + retry, new RabbitMqAdmissionGate("q"), audit, NullLogger.Instance); + + await host.StartConsumingAsync(NoOpHandler, queueName: "q").ConfigureAwait(false); + + return (host, consumerChannel, publishChannel); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostConnectionEventCaptureTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostConnectionEventCaptureTests.cs new file mode 100644 index 000000000..273636f1c --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostConnectionEventCaptureTests.cs @@ -0,0 +1,148 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Verifies that RabbitMqConsumerHost captures the IConnection reference at subscribe time +/// and uses the same captured reference when unsubscribing in DisposeAsync. +/// DisposeAsync must not re-fetch _connection.UnderlyingConnection: that property returns +/// null after the parent Connection's DisposeAsync has run, which would leave the four +/// connection-level event handlers unsubscribed — leaking them on the original IConnection +/// until GC reclaims it. +/// +public sealed class RabbitMqConsumerHostConnectionEventCaptureTests +{ + [Fact] + public async Task DisposeAsync_AfterParentConnectionUnderlyingNulled_UnsubscribesAgainstCapturedReference() + { + // Track event subscribe/unsubscribe counts on a Mock. + int shutdownSubs = 0; + int blockedSubs = 0; + int unblockedSubs = 0; + int tagChangeSubs = 0; + + var underlyingConn = new Mock(); + underlyingConn.SetupAdd(c => c.ConnectionShutdownAsync += It.IsAny>()) + .Callback(() => Interlocked.Increment(ref shutdownSubs)); + underlyingConn.SetupRemove(c => c.ConnectionShutdownAsync -= It.IsAny>()) + .Callback(() => Interlocked.Decrement(ref shutdownSubs)); + underlyingConn.SetupAdd(c => c.ConnectionBlockedAsync += It.IsAny>()) + .Callback(() => Interlocked.Increment(ref blockedSubs)); + underlyingConn.SetupRemove(c => c.ConnectionBlockedAsync -= It.IsAny>()) + .Callback(() => Interlocked.Decrement(ref blockedSubs)); + underlyingConn.SetupAdd(c => c.ConnectionUnblockedAsync += It.IsAny>()) + .Callback(() => Interlocked.Increment(ref unblockedSubs)); + underlyingConn.SetupRemove(c => c.ConnectionUnblockedAsync -= It.IsAny>()) + .Callback(() => Interlocked.Decrement(ref unblockedSubs)); + underlyingConn.SetupAdd(c => c.ConsumerTagChangeAfterRecoveryAsync += It.IsAny>()) + .Callback(() => Interlocked.Increment(ref tagChangeSubs)); + underlyingConn.SetupRemove(c => c.ConsumerTagChangeAfterRecoveryAsync -= It.IsAny>()) + .Callback(() => Interlocked.Decrement(ref tagChangeSubs)); + + var serviceConn = new Mock(); + serviceConn.SetupGet(c => c.UnderlyingConnection).Returns(underlyingConn.Object); + + var host = await BuildHostAsync(serviceConn); + + // After StartConsumingAsync all 4 events should have exactly one subscriber each. + Assert.Equal(1, shutdownSubs); + Assert.Equal(1, blockedSubs); + Assert.Equal(1, unblockedSubs); + Assert.Equal(1, tagChangeSubs); + + // Simulate the parent Connection's DisposeAsync having run first: UnderlyingConnection now null. + // DisposeAsync must use _subscribedUnderlyingConnection (captured at subscribe time) + // for unsubscription. Re-fetching UnderlyingConnection here would observe null, + // skip unsubscribe, and leak the four event handlers. + serviceConn.SetupGet(c => c.UnderlyingConnection).Returns((IConnection?)null); + + await host.DisposeAsync(); + + Assert.Equal(0, shutdownSubs); + Assert.Equal(0, blockedSubs); + Assert.Equal(0, unblockedSubs); + Assert.Equal(0, tagChangeSubs); + } + + // ── Harness ─────────────────────────────────────────────────────────────── + + /// + /// Builds a RabbitMqConsumerHost wired to the provided serviceConn mock, calls + /// StartConsumingAsync to wire up the channels and subscribe the connection-level events, + /// and returns the ready-to-dispose host. + /// + private static async Task BuildHostAsync(Mock serviceConn) + { + // ── Consumer channel (BasicQos + BasicConsume + BasicAck/Nack) ────── + var consumerChannel = new Mock(MockBehavior.Loose); + consumerChannel.SetupGet(c => c.IsOpen).Returns(true); + consumerChannel.Setup(c => c.BasicQosAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + consumerChannel.Setup(c => c.BasicConsumeAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny(), + It.IsAny?>(), + It.IsAny(), It.IsAny())) + .ReturnsAsync("tag"); + consumerChannel.Setup(c => c.BasicAckAsync( + It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(ValueTask.CompletedTask); + consumerChannel.Setup(c => c.BasicNackAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(ValueTask.CompletedTask); + consumerChannel.Setup(c => c.CloseAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + consumerChannel.Setup(c => c.DisposeAsync()).Returns(ValueTask.CompletedTask); + consumerChannel.SetupAdd(c => c.ChannelShutdownAsync += It.IsAny>()); + consumerChannel.SetupRemove(c => c.ChannelShutdownAsync -= It.IsAny>()); + + // ── Publish channel (loose — only DisposeAsync matters) ───────────── + var publishChannel = new Mock(MockBehavior.Loose); + publishChannel.Setup(c => c.DisposeAsync()).Returns(ValueTask.CompletedTask); + + serviceConn.Setup(c => c.CreateChannelAsync(It.IsAny())) + .ReturnsAsync(consumerChannel.Object); + serviceConn.Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(publishChannel.Object); + + // ── Transport / queue / bus configuration ─────────────────────────── + var transport = new Mock(); + transport.SetupGet(t => t.MaxRetries).Returns(3); + transport.SetupGet(t => t.PrefetchCount).Returns((ushort)10); + transport.SetupProperty(t => t.GracefulShutdownTimeoutMilliseconds, 5000); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary()); + + var queue = new Mock(); + queue.SetupGet(q => q.QueueName).Returns("q"); + queue.SetupGet(q => q.ErrorQueueName).Returns("err"); + queue.SetupGet(q => q.AuditQueueName).Returns("audit"); + queue.SetupGet(q => q.DisableErrors).Returns(false); + queue.SetupGet(q => q.AuditingEnabled).Returns(false); + + var bus = new Mock(); + bus.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + bus.SetupGet(b => b.DeadLetterUnhandledMessages).Returns(false); + + var retry = new MessageRetryHandler(3, "err", "q", NullLogger.Instance); + var audit = new MessageAuditPublisher(queue.Object); + + var host = new RabbitMqConsumerHost( + serviceConn.Object, transport.Object, queue.Object, bus.Object, + retry, new RabbitMqAdmissionGate("q"), audit, NullLogger.Instance); + + await host.StartConsumingAsync( + (_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }), + queueName: "q"); + + return host; + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostConsumeMessageTypeTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostConsumeMessageTypeTests.cs new file mode 100644 index 000000000..710ff12ae --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostConsumeMessageTypeTests.cs @@ -0,0 +1,86 @@ +using System.Threading; +using System.Threading.Tasks; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public class RabbitMqConsumerHostConsumeMessageTypeTests +{ + private static Mock CreateMockChannel() + { + var channel = new Mock(MockBehavior.Strict); + channel.Setup(c => c.IsOpen).Returns(true); + channel.Setup(c => c.BasicQosAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + channel.Setup(c => c.BasicConsumeAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny(), + It.IsAny?>(), + It.IsAny(), It.IsAny())) + .ReturnsAsync("tag"); + channel.Setup(c => c.CloseAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + channel.Setup(c => c.DisposeAsync()).Returns(ValueTask.CompletedTask); + return channel; + } + + private static (RabbitMqConsumerHost Host, Mock Channel) CreateHostWithChannel() + { + var consumerChannel = CreateMockChannel(); + var publishChannel = new Mock(); + publishChannel.Setup(c => c.DisposeAsync()).Returns(ValueTask.CompletedTask); + + var conn = new Mock(); + conn.Setup(c => c.CreateChannelAsync(It.IsAny())).ReturnsAsync(consumerChannel.Object); + conn.Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())).ReturnsAsync(publishChannel.Object); + + var transport = new Mock(); + transport.SetupGet(t => t.MaxRetries).Returns(3); + transport.SetupGet(t => t.PrefetchCount).Returns((ushort)10); + transport.SetupProperty(t => t.GracefulShutdownTimeoutMilliseconds, 5000); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary()); + + var queue = new Mock(); + queue.SetupGet(q => q.QueueName).Returns("q"); + queue.SetupGet(q => q.ErrorQueueName).Returns("err"); + queue.SetupGet(q => q.AuditQueueName).Returns("audit"); + queue.SetupGet(q => q.DisableErrors).Returns(false); + queue.SetupGet(q => q.AuditingEnabled).Returns(false); + + var bus = new Mock(); + bus.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + + var retry = new MessageRetryHandler(3, "err", "q", NullLogger.Instance); + var audit = new MessageAuditPublisher(queue.Object); + + var host = new RabbitMqConsumerHost(conn.Object, transport.Object, queue.Object, bus.Object, retry, new RabbitMqAdmissionGate("q"), audit, NullLogger.Instance); + return (host, consumerChannel); + } + + [Fact] + public async Task ConsumeMessageTypeAsync_PreCancelledToken_ThrowsAndDoesNotBind() + { + var (host, channel) = CreateHostWithChannel(); + + await host.StartConsumingAsync((_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }), "q"); + + // QueueBindAsync must NEVER be called when the token is pre-cancelled. + using var cts = new CancellationTokenSource(); + cts.Cancel(); + + await Assert.ThrowsAnyAsync(() => + host.ConsumeMessageTypeAsync("MyMessageType", cts.Token)); + + channel.Verify( + c => c.QueueBindAsync(It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny>(), + It.IsAny(), It.IsAny()), + Times.Never); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostDeadlineHelperTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostDeadlineHelperTests.cs new file mode 100644 index 000000000..9d1b89510 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostDeadlineHelperTests.cs @@ -0,0 +1,156 @@ +using Microsoft.Extensions.Logging; +using Microsoft.Extensions.Logging.Abstractions; +using Microsoft.Extensions.Logging.Testing; +using Moq; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Verifies that unexpected faults in the fire-and-forget +/// CancelHelperPublishesAtDeadlineAsync helper are logged at Warning so a +/// stalled deadline helper produces a production-visible signal. +/// +public sealed class RabbitMqConsumerHostDeadlineHelperTests +{ + [Fact] + public async Task UnexpectedFaultInDeadlineHelper_LoggedAtWarning() + { + // Arrange: a TimeProvider that throws InvalidOperationException on its second + // GetUtcNow() call. DisposeAsync calls GetUtcNow() first to compute the + // deadline, then immediately (synchronously, before the first await) enters + // CancelHelperPublishesAtDeadlineAsync which calls it again — that second call + // throws and is caught by the outer catch block, which should log at Warning. + // Subsequent calls return a stable time so DisposeAsync itself can complete. + var throwingTimeProvider = new ThrowOnSecondCallTimeProvider(); + var fakeLogger = new FakeLogger(); + + var (conn, _, _) = BuildConnection(); + var tcfg = MakeTransportCfg(); + var qcfg = MakeQueueCfg(); + + var host = new RabbitMqConsumerHost( + conn.Object, tcfg.Object, qcfg.Object, MakeBusCfg().Object, + new MessageRetryHandler(3, "err", "q", NullLogger.Instance), + new RabbitMqAdmissionGate("q"), + new MessageAuditPublisher(qcfg.Object), + fakeLogger, + throwingTimeProvider); + + await host.StartConsumingAsync( + (_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }), "q"); + + // Act + await host.DisposeAsync(); + + // Assert: the outer catch in CancelHelperPublishesAtDeadlineAsync must have + // logged the fault at Warning, not Debug. + var record = fakeLogger.Collector.GetSnapshot() + .SingleOrDefault(r => r.Message.Contains("CancelHelperPublishesAtDeadlineAsync best-effort recovery faulted")); + Assert.NotNull(record); + Assert.Equal(LogLevel.Warning, record.Level); + } + + // ── Time provider stub ──────────────────────────────────────────────────── + + /// + /// Returns a fixed far-future time on the first call so + /// DisposeAsync's deadline is well in the future, then throws + /// on the second call (which lands inside + /// CancelHelperPublishesAtDeadlineAsync before its first await), triggering + /// the outer catch block. All subsequent calls return the same far-future time so + /// DisposeAsync can complete normally. + /// + private sealed class ThrowOnSecondCallTimeProvider : TimeProvider + { + private int _callCount; + private static readonly DateTimeOffset _farFuture = + new(2100, 1, 1, 0, 0, 0, TimeSpan.Zero); + + public override DateTimeOffset GetUtcNow() + { + var count = Interlocked.Increment(ref _callCount); + if (count == 2) + { + throw new InvalidOperationException("synthetic TimeProvider fault for outer-catch test"); + } + + return _farFuture; + } + } + + // ── Construction helpers ────────────────────────────────────────────────── + + private static (Mock Connection, Mock ConsumerChannel, Mock PublishChannel) BuildConnection() + { + var consumerChannel = new Mock(MockBehavior.Loose); + consumerChannel.Setup(c => c.IsOpen).Returns(true); + consumerChannel.Setup(c => c.BasicQosAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + consumerChannel.Setup(c => c.BasicConsumeAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny(), + It.IsAny?>(), + It.IsAny(), It.IsAny())) + .ReturnsAsync("tag"); + consumerChannel.Setup(c => c.BasicCancelAsync( + It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + consumerChannel.Setup(c => c.CloseAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + consumerChannel.Setup(c => c.DisposeAsync()).Returns(ValueTask.CompletedTask); + consumerChannel.SetupAdd(c => c.ChannelShutdownAsync += It.IsAny>()); + consumerChannel.SetupRemove(c => c.ChannelShutdownAsync -= It.IsAny>()); + + var publishChannel = new Mock(MockBehavior.Loose); + publishChannel.Setup(c => c.DisposeAsync()).Returns(ValueTask.CompletedTask); + + var conn = new Mock(); + conn.Setup(c => c.CreateChannelAsync(It.IsAny())) + .ReturnsAsync(consumerChannel.Object); + conn.Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(publishChannel.Object); + conn.SetupGet(c => c.UnderlyingConnection).Returns((global::RabbitMQ.Client.IConnection?)null); + + return (conn, consumerChannel, publishChannel); + } + + private static Mock MakeTransportCfg() + { + var cfg = new Mock(); + cfg.SetupGet(c => c.MaxRetries).Returns(3); + cfg.SetupGet(c => c.PrefetchCount).Returns((ushort)10); + cfg.SetupProperty(c => c.GracefulShutdownTimeoutMilliseconds, 5000); + cfg.SetupGet(c => c.ClientSettings).Returns(new Dictionary()); + return cfg; + } + + private static Mock MakeQueueCfg() + { + var cfg = new Mock(); + cfg.SetupGet(c => c.QueueName).Returns("q"); + cfg.SetupGet(c => c.ErrorQueueName).Returns("err"); + cfg.SetupGet(c => c.AuditQueueName).Returns("audit"); + cfg.SetupGet(c => c.DisableErrors).Returns(false); + cfg.SetupGet(c => c.AuditingEnabled).Returns(false); + return cfg; + } + + private static Mock MakeBusCfg() + { + var cfg = new Mock(); + cfg.SetupGet(c => c.IncludeMachineNameInHeaders).Returns(false); + cfg.SetupGet(c => c.DeadLetterUnhandledMessages).Returns(false); + return cfg; + } + + /// Placeholder type so FakeLogger has a typed category. + public sealed class DeadlineHelperTag { } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostHeaderLimitsTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostHeaderLimitsTests.cs new file mode 100644 index 000000000..93b015ba6 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostHeaderLimitsTests.cs @@ -0,0 +1,345 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Wiring tests that confirm and +/// reach the admission-time header +/// guards inside . Behaviour of the validator itself is +/// covered by RabbitMqHeaderValidatorTests; here we only verify that the configured +/// caps supplant the host's DefaultMaxHeaderCount (64) and +/// DefaultMaxHeaderValueBytes (8192) constants. +/// +public sealed class RabbitMqConsumerHostHeaderLimitsTests +{ + [Fact] + public async Task ConfiguredMaxHeaderCount_AboveCap_IsRejected() + { + // MaxHeaderCount=5 → 6 headers (including TypeName) must NACK to error exchange. + var (conn, channel, publishChannel) = MockConnection(); + var tcfg = MakeTransportCfgWithMaxHeaderCount(5); + var qcfg = MakeQueueCfg(); + var bus = MakeBusCfg(); + var retry = new MessageRetryHandler(3, "err", "q", NullLogger.Instance); + var audit = new MessageAuditPublisher(qcfg.Object); + + bool handlerInvoked = false; + var host = new RabbitMqConsumerHost( + conn.Object, tcfg.Object, qcfg.Object, bus.Object, + retry, new RabbitMqAdmissionGate("q"), audit, NullLogger.Instance); + await host.StartConsumingAsync( + (_, _, _, _) => { handlerInvoked = true; return Task.FromResult(new ConsumeEventResult { Success = true }); }, + "q"); + + var headers = new Dictionary + { + [HeaderKeys.TypeName] = "SomeType", + ["X-1"] = "v", + ["X-2"] = "v", + ["X-3"] = "v", + ["X-4"] = "v", + ["X-5"] = "v", + }; + + await DeliverAsync(host, headers); + + Assert.False(handlerInvoked, "Handler must not be invoked when header count exceeds the configured cap."); + publishChannel.Verify(c => c.BasicPublishAsync( + "err", string.Empty, true, + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Once); + channel.Verify(c => c.BasicAckAsync(It.IsAny(), false, It.IsAny()), Times.Once); + } + + [Fact] + public async Task ConfiguredMaxHeaderCount_AtCap_IsAdmitted() + { + // MaxHeaderCount=5 → 5 headers (including TypeName) must reach the handler. + var (conn, _, publishChannel) = MockConnection(); + var tcfg = MakeTransportCfgWithMaxHeaderCount(5); + var qcfg = MakeQueueCfg(); + var bus = MakeBusCfg(); + var retry = new MessageRetryHandler(3, "err", "q", NullLogger.Instance); + var audit = new MessageAuditPublisher(qcfg.Object); + + bool handlerInvoked = false; + var host = new RabbitMqConsumerHost( + conn.Object, tcfg.Object, qcfg.Object, bus.Object, + retry, new RabbitMqAdmissionGate("q"), audit, NullLogger.Instance); + await host.StartConsumingAsync( + (_, _, _, _) => { handlerInvoked = true; return Task.FromResult(new ConsumeEventResult { Success = true }); }, + "q"); + + var headers = new Dictionary + { + [HeaderKeys.TypeName] = "SomeType", + ["X-1"] = "v", + ["X-2"] = "v", + ["X-3"] = "v", + ["X-4"] = "v", + }; + + await DeliverAsync(host, headers); + + Assert.True(handlerInvoked, "Handler must be invoked when header count is at the configured cap."); + // No terminal-failure publish should have happened for this admitted delivery. + publishChannel.Verify(c => c.BasicPublishAsync( + "err", string.Empty, true, + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Never); + } + + [Fact] + public async Task UnsetMaxHeaderCount_DefaultsToSixtyFour_AndAdmitsExactlySixtyFour() + { + // No MaxHeaderCount setting → default of 64 still applies (DefaultMaxHeaderCount). + // 64 headers (including TypeName) must pass admission. + var (conn, _, publishChannel) = MockConnection(); + var tcfg = MakeTransportCfgWithMaxHeaderCount(null); + var qcfg = MakeQueueCfg(); + var bus = MakeBusCfg(); + var retry = new MessageRetryHandler(3, "err", "q", NullLogger.Instance); + var audit = new MessageAuditPublisher(qcfg.Object); + + bool handlerInvoked = false; + var host = new RabbitMqConsumerHost( + conn.Object, tcfg.Object, qcfg.Object, bus.Object, + retry, new RabbitMqAdmissionGate("q"), audit, NullLogger.Instance); + await host.StartConsumingAsync( + (_, _, _, _) => { handlerInvoked = true; return Task.FromResult(new ConsumeEventResult { Success = true }); }, + "q"); + + var headers = new Dictionary { [HeaderKeys.TypeName] = "SomeType" }; + for (int i = 0; i < 63; i++) + { + headers[$"X-{i}"] = "v"; + } + + await DeliverAsync(host, headers); + + Assert.True(handlerInvoked, "Handler must be invoked at the default cap of 64 when no override is configured."); + publishChannel.Verify(c => c.BasicPublishAsync( + "err", string.Empty, true, + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Never); + } + + [Fact] + public async Task ConfiguredMaxHeaderValueBytes_AboveCap_IsRejected() + { + // MaxHeaderValueBytes=16 → a 17-byte header value must NACK to the error exchange. + var (conn, channel, publishChannel) = MockConnection(); + var tcfg = MakeTransportCfgWithMaxHeaderValueBytes(16); + var qcfg = MakeQueueCfg(); + var bus = MakeBusCfg(); + var retry = new MessageRetryHandler(3, "err", "q", NullLogger.Instance); + var audit = new MessageAuditPublisher(qcfg.Object); + + bool handlerInvoked = false; + var host = new RabbitMqConsumerHost( + conn.Object, tcfg.Object, qcfg.Object, bus.Object, + retry, new RabbitMqAdmissionGate("q"), audit, NullLogger.Instance); + await host.StartConsumingAsync( + (_, _, _, _) => { handlerInvoked = true; return Task.FromResult(new ConsumeEventResult { Success = true }); }, + "q"); + + var headers = new Dictionary + { + [HeaderKeys.TypeName] = "SomeType", + ["X-Big"] = new string('a', 17), + }; + + await DeliverAsync(host, headers); + + Assert.False(handlerInvoked, "Handler must not be invoked when a header value exceeds the configured byte cap."); + publishChannel.Verify(c => c.BasicPublishAsync( + "err", string.Empty, true, + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Once); + channel.Verify(c => c.BasicAckAsync(It.IsAny(), false, It.IsAny()), Times.Once); + } + + [Fact] + public async Task ConfiguredMaxHeaderValueBytes_AtCap_IsAdmitted() + { + // MaxHeaderValueBytes=16 → a 16-byte header value must reach the handler. + var (conn, _, publishChannel) = MockConnection(); + var tcfg = MakeTransportCfgWithMaxHeaderValueBytes(16); + var qcfg = MakeQueueCfg(); + var bus = MakeBusCfg(); + var retry = new MessageRetryHandler(3, "err", "q", NullLogger.Instance); + var audit = new MessageAuditPublisher(qcfg.Object); + + bool handlerInvoked = false; + var host = new RabbitMqConsumerHost( + conn.Object, tcfg.Object, qcfg.Object, bus.Object, + retry, new RabbitMqAdmissionGate("q"), audit, NullLogger.Instance); + await host.StartConsumingAsync( + (_, _, _, _) => { handlerInvoked = true; return Task.FromResult(new ConsumeEventResult { Success = true }); }, + "q"); + + var headers = new Dictionary + { + [HeaderKeys.TypeName] = "SomeType", + ["X-Big"] = new string('a', 16), + }; + + await DeliverAsync(host, headers); + + Assert.True(handlerInvoked, "Handler must be invoked when a header value is at the configured byte cap."); + publishChannel.Verify(c => c.BasicPublishAsync( + "err", string.Empty, true, + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Never); + } + + [Fact] + public async Task UnsetMaxHeaderValueBytes_DefaultsToEightKb_AndAdmitsExactlyEightKb() + { + // No MaxHeaderValueBytes setting → default of 8192 still applies. An 8192-byte + // header value must pass admission. + var (conn, _, publishChannel) = MockConnection(); + var tcfg = MakeTransportCfgWithMaxHeaderValueBytes(null); + var qcfg = MakeQueueCfg(); + var bus = MakeBusCfg(); + var retry = new MessageRetryHandler(3, "err", "q", NullLogger.Instance); + var audit = new MessageAuditPublisher(qcfg.Object); + + bool handlerInvoked = false; + var host = new RabbitMqConsumerHost( + conn.Object, tcfg.Object, qcfg.Object, bus.Object, + retry, new RabbitMqAdmissionGate("q"), audit, NullLogger.Instance); + await host.StartConsumingAsync( + (_, _, _, _) => { handlerInvoked = true; return Task.FromResult(new ConsumeEventResult { Success = true }); }, + "q"); + + var headers = new Dictionary + { + [HeaderKeys.TypeName] = "SomeType", + ["X-Big"] = new string('a', 8192), + }; + + await DeliverAsync(host, headers); + + Assert.True(handlerInvoked, "Handler must be invoked at the default 8 KB value cap when no override is configured."); + publishChannel.Verify(c => c.BasicPublishAsync( + "err", string.Empty, true, + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Never); + } + + // ── Harness — mirrors the helpers in RabbitMqConsumerHostTests but parameterises + // MaxHeaderCount and MaxHeaderValueBytes through ClientSettings. + + private static (Mock Connection, Mock ConsumerChannel, Mock PublishChannel) MockConnection() + { + var consumerChannel = CreateMockChannel(); + var publishChannel = CreateMockChannel(); + var conn = new Mock(); + conn.Setup(c => c.CreateChannelAsync(It.IsAny())).ReturnsAsync(consumerChannel.Object); + conn.Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())).ReturnsAsync(publishChannel.Object); + return (conn, consumerChannel, publishChannel); + } + + private static Mock CreateMockChannel() + { + var channel = new Mock(); + channel.Setup(c => c.IsOpen).Returns(true); + channel.Setup(c => c.BasicQosAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + channel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns(ValueTask.CompletedTask); + channel.Setup(c => c.BasicConsumeAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny(), + It.IsAny?>(), + It.IsAny(), It.IsAny())) + .ReturnsAsync("tag"); + channel.Setup(c => c.BasicAckAsync(It.IsAny(), It.IsAny(), It.IsAny())).Returns(ValueTask.CompletedTask); + channel.Setup(c => c.BasicNackAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())).Returns(ValueTask.CompletedTask); + channel.Setup(c => c.CloseAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())).Returns(Task.CompletedTask); + channel.Setup(c => c.DisposeAsync()).Returns(ValueTask.CompletedTask); + return channel; + } + + private static Mock MakeTransportCfgWithMaxHeaderCount(int? maxHeaderCount) + => MakeTransportCfg(maxHeaderCount, maxHeaderValueBytes: null); + + private static Mock MakeTransportCfgWithMaxHeaderValueBytes(int? maxHeaderValueBytes) + => MakeTransportCfg(maxHeaderCount: null, maxHeaderValueBytes); + + private static Mock MakeTransportCfg(int? maxHeaderCount, int? maxHeaderValueBytes) + { + var cfg = new Mock(); + cfg.SetupGet(c => c.MaxRetries).Returns(3); + cfg.SetupGet(c => c.PrefetchCount).Returns((ushort)10); + cfg.SetupProperty(c => c.GracefulShutdownTimeoutMilliseconds, 5000); + var settings = new Dictionary(); + if (maxHeaderCount.HasValue) + { + settings[RabbitMQSettingKeys.MaxHeaderCount] = maxHeaderCount.Value; + } + + if (maxHeaderValueBytes.HasValue) + { + settings[RabbitMQSettingKeys.MaxHeaderValueBytes] = maxHeaderValueBytes.Value; + } + + cfg.SetupGet(c => c.ClientSettings).Returns(settings); + return cfg; + } + + private static Mock MakeQueueCfg() + { + var cfg = new Mock(); + cfg.SetupGet(c => c.QueueName).Returns("q"); + cfg.SetupGet(c => c.ErrorQueueName).Returns("err"); + cfg.SetupGet(c => c.AuditQueueName).Returns("audit"); + cfg.SetupGet(c => c.DisableErrors).Returns(false); + cfg.SetupGet(c => c.AuditingEnabled).Returns(false); + return cfg; + } + + private static Mock MakeBusCfg() + { + var cfg = new Mock(); + cfg.SetupGet(c => c.IncludeMachineNameInHeaders).Returns(false); + cfg.SetupGet(c => c.DeadLetterUnhandledMessages).Returns(false); + return cfg; + } + + private static async Task DeliverAsync(RabbitMqConsumerHost host, Dictionary headers) + { + var consumerField = typeof(RabbitMqConsumerHost) + .GetField("_consumer", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance); + if (consumerField?.GetValue(host) is not global::RabbitMQ.Client.Events.AsyncEventingBasicConsumer consumer) + { + throw new InvalidOperationException("_consumer field not found or host not started."); + } + + var props = new BasicProperties(); + foreach (var kvp in headers) + { + (props.Headers ??= new Dictionary())[kvp.Key] = kvp.Value; + } + + await consumer.HandleBasicDeliverAsync( + consumerTag: "tag", + deliveryTag: 1, + redelivered: false, + exchange: "", + routingKey: "q", + properties: props, + body: new byte[] { 1 }, + cancellationToken: default); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostHeaderSizeTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostHeaderSizeTests.cs new file mode 100644 index 000000000..968e5f1dc --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostHeaderSizeTests.cs @@ -0,0 +1,286 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// The header-size admission guard in RabbitMqConsumerHost rejects oversized string +/// header values in the same way it already rejects oversized byte[] values. Tests +/// drive deliveries through the internal RaiseDeliveryForTests seam rather than +/// going through the broker. BuildHostAsync establishes the harness pattern reused +/// by other EventAsync-direct tests. +/// +public sealed class RabbitMqConsumerHostHeaderSizeTests +{ + // DefaultMaxHeaderValueBytes is 8192 in the host; use 9000 chars to exceed it. + private const int OverLimitStringLength = 9000; + + [Fact] + public async Task EventAsync_LargeStringHeader_RoutesToTerminalFailure() + { + var (host, _, capturedExceptions) = await BuildHostAsync(); + + var args = MakeArgs(new Dictionary(StringComparer.Ordinal) + { + [HeaderKeys.FullTypeName] = "Foo.Bar", + ["X-Large"] = new string('x', OverLimitStringLength), + }); + + await host.RaiseDeliveryForTests(args); + + // The terminal-failure path publishes to the error exchange; the Exception header + // JSON is serialised by MessageRetryHandler and captured via BasicPublishAsync. + var ex = Assert.Single(capturedExceptions); + Assert.Contains("X-Large", ex); + } + + [Fact] + public async Task EventAsync_SmallStringHeader_PassesAdmission() + { + var (host, _, capturedExceptions) = await BuildHostAsync(); + + var args = MakeArgs(new Dictionary(StringComparer.Ordinal) + { + [HeaderKeys.FullTypeName] = "Foo.Bar", + ["X-Small"] = "small", + }); + + await host.RaiseDeliveryForTests(args); + + // No size-violation exception should have been published for X-Small. + // (The delivery may still fail for other reasons — no real handler is wired — + // but it must NOT fail due to the header-size guard.) + Assert.DoesNotContain(capturedExceptions, e => e.Contains("X-Small")); + } + + [Fact] + public async Task EventAsync_NestedDictionaryHeaderExceedingByteBudget_RoutesToTerminalFailure() + { + // 9 KB of payload nested inside an IDictionary header value — a single header value + // that bypasses the per-value 8 KB cap by nesting. Pre-fix this passes the validator + // because the size loop only inspects top-level byte[]/string. Post-fix the recursive + // byte-cost descends into the dictionary and rejects. + var (host, _, capturedExceptions) = await BuildHostAsync(); + + var nested = new Dictionary(StringComparer.Ordinal) + { + ["inner"] = new string('x', OverLimitStringLength), + }; + var args = MakeArgs(new Dictionary(StringComparer.Ordinal) + { + [HeaderKeys.FullTypeName] = "Foo.Bar", + ["X-NestedTable"] = nested, + }); + + await host.RaiseDeliveryForTests(args); + + var ex = Assert.Single(capturedExceptions); + Assert.Contains("X-NestedTable", ex); + } + + [Fact] + public async Task EventAsync_NestedListHeaderExceedingByteBudget_RoutesToTerminalFailure() + { + // Same shape but using IList (AMQP array). + var (host, _, capturedExceptions) = await BuildHostAsync(); + + var nested = new List + { + new string('x', OverLimitStringLength), + }; + var args = MakeArgs(new Dictionary(StringComparer.Ordinal) + { + [HeaderKeys.FullTypeName] = "Foo.Bar", + ["X-NestedArray"] = nested, + }); + + await host.RaiseDeliveryForTests(args); + + var ex = Assert.Single(capturedExceptions); + Assert.Contains("X-NestedArray", ex); + } + + [Fact] + public async Task EventAsync_NestedDictionaryHeaderUnderByteBudget_PassesAdmission() + { + // Nested table whose total payload is well under the 8 KB cap — must NOT be rejected. + var (host, _, capturedExceptions) = await BuildHostAsync(); + + var nested = new Dictionary(StringComparer.Ordinal) + { + ["inner1"] = "hello", + ["inner2"] = new string('y', 1024), // 1 KB + }; + var args = MakeArgs(new Dictionary(StringComparer.Ordinal) + { + [HeaderKeys.FullTypeName] = "Foo.Bar", + ["X-SmallNested"] = nested, + }); + + await host.RaiseDeliveryForTests(args); + + Assert.DoesNotContain(capturedExceptions, e => e.Contains("X-SmallNested")); + } + + [Fact] + public async Task EventAsync_PathologicallyDeepNestedHeader_RoutesToTerminalFailure() + { + // Build 33 levels of single-entry-dict nesting — each level has a tiny payload, well + // under the 8 KB budget on byte count alone. The depth guard rejects pathologically + // deep payloads independently of byte count to prevent stack exhaustion if the byte + // budget is ever widened. + var (host, _, capturedExceptions) = await BuildHostAsync(); + + object current = "leaf"; + for (var i = 0; i < 33; i++) + { + current = new Dictionary(StringComparer.Ordinal) { ["wrap"] = current }; + } + + var args = MakeArgs(new Dictionary(StringComparer.Ordinal) + { + [HeaderKeys.FullTypeName] = "Foo.Bar", + ["X-Deep"] = current, + }); + + await host.RaiseDeliveryForTests(args); + + var ex = Assert.Single(capturedExceptions); + Assert.Contains("X-Deep", ex); + } + + // ── Harness ─────────────────────────────────────────────────────────────── + + /// + /// Builds a with mocked channels, calls + /// so that _model and + /// _publishChannel are populated, and returns the host together with the mocked + /// publish channel and a live list that accumulates every Exception-header JSON + /// snippet that BasicPublishAsync receives. + /// + /// Pattern for follow-on tasks (7/8/9): copy this method and add extra channel + /// setup / capture points as needed. The key contracts are: + /// - conn.CreateChannelAsync(CT) → consumerChannel (for BasicQos + BasicConsume + BasicAck/Nack) + /// - conn.CreateChannelAsync(CreateChannelOptions?, CT) → publishChannel (for BasicPublishAsync) + /// - publishChannel captures all BasicPublishAsync calls into capturedExceptions + /// + private static async Task<(RabbitMqConsumerHost Host, Mock PublishChannel, List CapturedExceptions)> BuildHostAsync() + { + var capturedExceptions = new List(); + + // ── Consumer channel (BasicQos + BasicConsume + BasicAck/Nack) ────── + var consumerChannel = new Mock(MockBehavior.Strict); + consumerChannel.Setup(c => c.IsOpen).Returns(true); + consumerChannel.Setup(c => c.BasicQosAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + consumerChannel.Setup(c => c.BasicConsumeAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny(), + It.IsAny?>(), + It.IsAny(), It.IsAny())) + .ReturnsAsync("tag"); + consumerChannel.Setup(c => c.BasicAckAsync( + It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(ValueTask.CompletedTask); + consumerChannel.Setup(c => c.BasicNackAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(ValueTask.CompletedTask); + consumerChannel.Setup(c => c.CloseAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + consumerChannel.Setup(c => c.DisposeAsync()).Returns(ValueTask.CompletedTask); + // ChannelShutdownAsync event subscription (the host wires _consumer.ShutdownAsync and + // _model.ChannelShutdownAsync; Moq needs the add/remove set up for strict mocks). + consumerChannel.SetupAdd(c => c.ChannelShutdownAsync += It.IsAny>()); + consumerChannel.SetupRemove(c => c.ChannelShutdownAsync -= It.IsAny>()); + + // ── Publish channel (BasicPublishAsync — captures exception JSON) ─── + var publishChannel = new Mock(MockBehavior.Loose); + publishChannel + .Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Callback, CancellationToken>( + (_, _, _, props, _, _) => + { + if (props.Headers != null && + props.Headers.TryGetValue(HeaderKeys.Exception, out var raw) && + raw is not null) + { + // MessageRetryHandler stamps the Exception header as a JSON string + // via HeaderHelpers.SetHeader, which encodes it as a plain string. + // Decode: string arrives either as string or UTF-8 byte[]. + var json = raw switch + { + string s => s, + byte[] b => System.Text.Encoding.UTF8.GetString(b), + _ => raw.ToString() ?? string.Empty, + }; + capturedExceptions.Add(json); + } + }) + .Returns(ValueTask.CompletedTask); + publishChannel.Setup(c => c.DisposeAsync()).Returns(ValueTask.CompletedTask); + + // ── Connection ────────────────────────────────────────────────────── + var conn = new Mock(); + conn.Setup(c => c.CreateChannelAsync(It.IsAny())) + .ReturnsAsync(consumerChannel.Object); + conn.Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(publishChannel.Object); + // UnderlyingConnection is accessed in StartConsumingAsync to subscribe to + // connection-level events. Return null so no IConnection event wiring is needed. + conn.SetupGet(c => c.UnderlyingConnection).Returns((IConnection?)null); + + // ── Transport / queue / bus configuration ─────────────────────────── + var transport = new Mock(); + transport.SetupGet(t => t.MaxRetries).Returns(3); + transport.SetupGet(t => t.PrefetchCount).Returns((ushort)10); + transport.SetupProperty(t => t.GracefulShutdownTimeoutMilliseconds, 5000); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary()); + + var queue = new Mock(); + queue.SetupGet(q => q.QueueName).Returns("q"); + queue.SetupGet(q => q.ErrorQueueName).Returns("err"); + queue.SetupGet(q => q.AuditQueueName).Returns("audit"); + queue.SetupGet(q => q.DisableErrors).Returns(false); + queue.SetupGet(q => q.AuditingEnabled).Returns(false); + + var bus = new Mock(); + bus.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + bus.SetupGet(b => b.DeadLetterUnhandledMessages).Returns(false); + + var retry = new MessageRetryHandler(3, "err", "q", NullLogger.Instance); + var audit = new MessageAuditPublisher(queue.Object); + + var host = new RabbitMqConsumerHost( + conn.Object, transport.Object, queue.Object, bus.Object, + retry, new RabbitMqAdmissionGate("q"), audit, NullLogger.Instance); + + // Wire up the consumer channel and publish channel by calling StartConsumingAsync. + // A no-op handler is sufficient — we are testing the admission guard, not dispatch. + await host.StartConsumingAsync( + (_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }), + queueName: "q"); + + return (host, publishChannel, capturedExceptions); + } + + private static BasicDeliverEventArgs MakeArgs(IDictionary? headers = null) + => new( + consumerTag: "ct", + deliveryTag: 1, + redelivered: false, + exchange: "", + routingKey: "q", + properties: new BasicProperties { Headers = headers }, + body: new byte[] { 1 }); +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostInflightCounterTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostInflightCounterTests.cs new file mode 100644 index 000000000..45eb4776d --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostInflightCounterTests.cs @@ -0,0 +1,212 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Atomicity discipline of the in-flight counter (owned by +/// ): under concurrent deliveries, the counter +/// must never go negative and must settle to zero once all in-flight handlers +/// complete. +/// +/// All increments and decrements happen under the gate's lock, so the counter is +/// exact regardless of interleaving. Mixing lock-protected `++` with lock-free +/// decrements and volatile reads would let a concurrent decrement lose an update +/// against a stale read inside the lock-protected `++`, leaving the counter stuck +/// above the true in-flight count. +/// +public sealed class RabbitMqConsumerHostInflightCounterTests +{ + [Fact] + public async Task EventAsync_ConcurrentDeliveriesAndDrains_CounterReachesZero_NeverNegative() + { + // Yielding handler maximises interleaving by forcing the continuation onto + // the thread pool — this widens the window between the increment (admission) + // and decrement (finally) so concurrent producers/decrementers exercise the + // full read-modify-write race surface of the in-flight counter. + static async Task YieldingHandler( + ReadOnlyMemory _, string __, IDictionary ___, CancellationToken ____) + { + await Task.Yield(); + return new ConsumeEventResult { Success = true }; + } + + var (host, gate, _, _) = await BuildHostAsync(YieldingHandler); + + // Background sampler reads the counter every 1ms and tracks the minimum value + // observed. A negative value indicates a lost-update race (decrement applied + // against a stale read inside the lock-protected `++`). + int minObserved = int.MaxValue; + using var samplerCts = new CancellationTokenSource(); + var sampler = Task.Run(async () => + { + while (!samplerCts.IsCancellationRequested) + { + var v = ReadInflightCount(gate); + int snapshot; + do { snapshot = minObserved; } + while (v < snapshot && Interlocked.CompareExchange(ref minObserved, v, snapshot) != snapshot); + try + { + await Task.Delay(1, samplerCts.Token); + } + catch (OperationCanceledException) + { + return; + } + } + }); + + // 8 concurrent producers, 100 deliveries each, distinct deliveryTags so the + // mock channel paths don't collide on duplicate ack tags. + var tasks = Enumerable.Range(0, 8).Select(producerIdx => Task.Run(async () => + { + for (int i = 0; i < 100; i++) + { + var args = MakeArgs(deliveryTag: (ulong)((producerIdx * 100) + i)); + await host.RaiseDeliveryForTests(args); + } + })).ToArray(); + + await Task.WhenAll(tasks); + await samplerCts.CancelAsync(); + try { await sampler; } catch (OperationCanceledException) { } + + // Counter never went negative. + Assert.True(minObserved >= 0, $"Counter went negative: min observed = {minObserved}"); + + // Brief settle window: the decrement runs in the finally after the handler + // continuation, which may still be hopping thread-pool slots when WhenAll + // returns from the producer task (the producer task awaits RaiseDeliveryForTests + // to completion of EventAsync's finally, but the sampler tracks min, not max). + await Task.Delay(100); + + // Counter is at zero after drain. + Assert.Equal(0, ReadInflightCount(gate)); + } + + private static int ReadInflightCount(RabbitMqAdmissionGate gate) + { + // The in-flight counter now lives on the gate, not the host. Reflection still + // probes it directly so the sampler observes the same primitive the production + // path increments/decrements, without needing a public surface that exists only + // for tests. + var field = typeof(RabbitMqAdmissionGate).GetField( + "_inFlight", + System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic); + return (int)field!.GetValue(gate)!; + } + + // ── Harness ─────────────────────────────────────────────────────────────── + + /// + /// Builds a with mocked channels. Parameterised to + /// accept the handler delegate so the inflight-counter test can pass a yielding handler + /// that maximises interleaving. + /// + private static async Task<( + RabbitMqConsumerHost Host, + RabbitMqAdmissionGate Gate, + Mock ConsumerChannel, + Mock PublishChannel)> BuildHostAsync(ConsumerEventHandler handler) + { + // ── Consumer channel (BasicQos + BasicConsume + BasicAck/Nack) ────── + var consumerChannel = new Mock(MockBehavior.Strict); + consumerChannel.Setup(c => c.IsOpen).Returns(true); + consumerChannel.Setup(c => c.BasicQosAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + consumerChannel.Setup(c => c.BasicConsumeAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny(), + It.IsAny?>(), + It.IsAny(), It.IsAny())) + .ReturnsAsync("tag"); + consumerChannel.Setup(c => c.BasicAckAsync( + It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(ValueTask.CompletedTask); + consumerChannel.Setup(c => c.BasicNackAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(ValueTask.CompletedTask); + consumerChannel.Setup(c => c.CloseAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + consumerChannel.Setup(c => c.DisposeAsync()).Returns(ValueTask.CompletedTask); + consumerChannel.SetupAdd(c => c.ChannelShutdownAsync += It.IsAny>()); + consumerChannel.SetupRemove(c => c.ChannelShutdownAsync -= It.IsAny>()); + + // ── Publish channel (BasicPublishAsync) ───────────────────────────── + var publishChannel = new Mock(MockBehavior.Loose); + publishChannel + .Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns(ValueTask.CompletedTask); + publishChannel.Setup(c => c.DisposeAsync()).Returns(ValueTask.CompletedTask); + + // ── Connection ────────────────────────────────────────────────────── + var conn = new Mock(); + conn.Setup(c => c.CreateChannelAsync(It.IsAny())) + .ReturnsAsync(consumerChannel.Object); + conn.Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(publishChannel.Object); + conn.SetupGet(c => c.UnderlyingConnection).Returns((IConnection?)null); + + // ── Transport / queue / bus configuration ─────────────────────────── + var transport = new Mock(); + transport.SetupGet(t => t.MaxRetries).Returns(3); + transport.SetupGet(t => t.PrefetchCount).Returns((ushort)10); + transport.SetupProperty(t => t.GracefulShutdownTimeoutMilliseconds, 5000); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary()); + + var queue = new Mock(); + queue.SetupGet(q => q.QueueName).Returns("q"); + queue.SetupGet(q => q.ErrorQueueName).Returns("err"); + queue.SetupGet(q => q.AuditQueueName).Returns("audit"); + queue.SetupGet(q => q.DisableErrors).Returns(false); + queue.SetupGet(q => q.AuditingEnabled).Returns(false); + + var bus = new Mock(); + bus.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + bus.SetupGet(b => b.DeadLetterUnhandledMessages).Returns(false); + + var retry = new MessageRetryHandler(3, "err", "q", NullLogger.Instance); + var audit = new MessageAuditPublisher(queue.Object); + var gate = new RabbitMqAdmissionGate("q"); + + var host = new RabbitMqConsumerHost( + conn.Object, transport.Object, queue.Object, bus.Object, + retry, gate, audit, NullLogger.Instance); + + await host.StartConsumingAsync(handler, queueName: "q").ConfigureAwait(false); + + return (host, gate, consumerChannel, publishChannel); + } + + /// + /// Builds a delivery with the minimal headers that get past the type-name + /// admission guard so the processor path is reached. + /// + private static BasicDeliverEventArgs MakeArgs(ulong deliveryTag) + => new( + consumerTag: "ct", + deliveryTag: deliveryTag, + redelivered: false, + exchange: "", + routingKey: "q", + properties: new BasicProperties + { + Headers = new Dictionary(StringComparer.Ordinal) + { + [HeaderKeys.FullTypeName] = "Foo.Bar", + }, + }, + body: new byte[] { 1 }); +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostMessageProcessorNullTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostMessageProcessorNullTests.cs new file mode 100644 index 000000000..bb3e44125 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostMessageProcessorNullTests.cs @@ -0,0 +1,175 @@ +using Microsoft.Extensions.Logging; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Verifies that EventAsync handles a null _messageProcessor defensively: +/// logs a Warning and nacks-with-requeue rather than throwing an NRE. +/// +public sealed class RabbitMqConsumerHostMessageProcessorNullTests +{ + [Fact] + public async Task EventAsync_MessageProcessorNull_LogsWarning_AndNacksWithRequeue() + { + var (host, consumerChannel, _, capturedLogs) = await BuildHostAsync(); + + // Null out _messageProcessor via reflection so the new defensive check fires. + var field = typeof(RabbitMqConsumerHost).GetField("_messageProcessor", + System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic); + field!.SetValue(host, null); + + var args = MakeArgs(); + await host.RaiseDeliveryForTests(args); + + // Assert: Warning log emitted with "Message processor not initialised". + Assert.Contains(capturedLogs, l => l.Level == LogLevel.Warning && l.Message.Contains("Message processor not initialised")); + + // Assert: the message took the processed=false path (BasicNackAsync called with requeue:true, + // BasicAckAsync NOT called). + consumerChannel.Verify(c => c.BasicNackAsync(args.DeliveryTag, false, true, It.IsAny()), Times.Once); + consumerChannel.Verify(c => c.BasicAckAsync(It.IsAny(), It.IsAny(), It.IsAny()), Times.Never); + } + + // ── Harness ─────────────────────────────────────────────────────────────── + + /// + /// Builds a with mocked channels and a + /// capturing . Follows the pattern from + /// RabbitMqConsumerHostAckNackTests. + /// + private static async Task<( + RabbitMqConsumerHost Host, + Mock ConsumerChannel, + Mock PublishChannel, + List CapturedLogs)> BuildHostAsync( + bool consumerChannelIsOpen = true) + { + var capturedLogs = new List(); + + // ── Logger that captures all LogXxx calls ──────────────────────────── + var logger = new Mock(); + logger.Setup(l => l.IsEnabled(It.IsAny())).Returns(true); + logger + .Setup(l => l.Log( + It.IsAny(), + It.IsAny(), + It.IsAny(), + It.IsAny(), + It.IsAny>())) + .Callback(new InvocationAction(invocation => + { + var level = (LogLevel)invocation.Arguments[0]; + var formatter = (Delegate)invocation.Arguments[4]; + var message = (string)formatter.DynamicInvoke(invocation.Arguments[2], invocation.Arguments[3])!; + capturedLogs.Add(new CapturedLog(level, message)); + })); + + // ── Consumer channel ───────────────────────────────────────────────── + var consumerChannel = new Mock(MockBehavior.Strict); + consumerChannel.Setup(c => c.IsOpen).Returns(consumerChannelIsOpen); + consumerChannel.Setup(c => c.BasicQosAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + consumerChannel.Setup(c => c.BasicConsumeAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny(), + It.IsAny?>(), + It.IsAny(), It.IsAny())) + .ReturnsAsync("tag"); + if (consumerChannelIsOpen) + { + consumerChannel.Setup(c => c.BasicAckAsync( + It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(ValueTask.CompletedTask); + consumerChannel.Setup(c => c.BasicNackAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(ValueTask.CompletedTask); + } + + consumerChannel.Setup(c => c.CloseAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + consumerChannel.Setup(c => c.DisposeAsync()).Returns(ValueTask.CompletedTask); + consumerChannel.SetupAdd(c => c.ChannelShutdownAsync += It.IsAny>()); + consumerChannel.SetupRemove(c => c.ChannelShutdownAsync -= It.IsAny>()); + + // ── Publish channel ────────────────────────────────────────────────── + var publishChannel = new Mock(MockBehavior.Loose); + publishChannel + .Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns(ValueTask.CompletedTask); + publishChannel.Setup(c => c.DisposeAsync()).Returns(ValueTask.CompletedTask); + + // ── Connection ─────────────────────────────────────────────────────── + var conn = new Mock(); + conn.Setup(c => c.CreateChannelAsync(It.IsAny())) + .ReturnsAsync(consumerChannel.Object); + conn.Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(publishChannel.Object); + conn.SetupGet(c => c.UnderlyingConnection).Returns((IConnection?)null); + + // ── Transport / queue / bus configuration ──────────────────────────── + var transport = new Mock(); + transport.SetupGet(t => t.MaxRetries).Returns(3); + transport.SetupGet(t => t.PrefetchCount).Returns((ushort)10); + transport.SetupProperty(t => t.GracefulShutdownTimeoutMilliseconds, 5000); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary()); + + var queue = new Mock(); + queue.SetupGet(q => q.QueueName).Returns("q"); + queue.SetupGet(q => q.ErrorQueueName).Returns("err"); + queue.SetupGet(q => q.AuditQueueName).Returns("audit"); + queue.SetupGet(q => q.DisableErrors).Returns(false); + queue.SetupGet(q => q.AuditingEnabled).Returns(false); + + var bus = new Mock(); + bus.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + bus.SetupGet(b => b.DeadLetterUnhandledMessages).Returns(false); + + var retry = new MessageRetryHandler(3, "err", "q", NullLogger.Instance); + var audit = new MessageAuditPublisher(queue.Object); + + var host = new RabbitMqConsumerHost( + conn.Object, transport.Object, queue.Object, bus.Object, + retry, new RabbitMqAdmissionGate("q"), audit, logger.Object); + + await host.StartConsumingAsync( + (_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }), + queueName: "q"); + + return (host, consumerChannel, publishChannel, capturedLogs); + } + + /// + /// Builds a delivery with the minimal headers that get past the type-name + /// admission guard so the processor path is reached. + /// + private static BasicDeliverEventArgs MakeArgs() + => new( + consumerTag: "ct", + deliveryTag: 1, + redelivered: false, + exchange: "", + routingKey: "q", + properties: new BasicProperties + { + Headers = new Dictionary(StringComparer.Ordinal) + { + [HeaderKeys.FullTypeName] = "Foo.Bar", + }, + }, + body: new byte[] { 1 }); + + private sealed record CapturedLog(LogLevel Level, string Message); +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostRecoveryTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostRecoveryTests.cs new file mode 100644 index 000000000..2ddc6e9df --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostRecoveryTests.cs @@ -0,0 +1,185 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Verifies that refreshes its cached consumer tag when +/// the broker assigns a new tag during auto-recovery via +/// . +/// +/// The cached tag must stay current so the BasicCancelAsync call during +/// DisposeAsync targets the live consumer rather than a stale tag. +/// +public sealed class RabbitMqConsumerHostRecoveryTests +{ + [Fact] + public async Task ConsumerTag_UpdatedAfterRecovery_WhenTagBefore_MatchesCurrent() + { + var (host, fakeConn) = await BuildHostAsync(initialConsumerTag: "tag-original"); + + // Verify the initial tag is what BasicConsumeAsync returned. + var consumerTagField = typeof(RabbitMqConsumerHost).GetField( + "_consumerTag", + System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic)!; + Assert.Equal("tag-original", (string?)consumerTagField.GetValue(host)); + + // Simulate broker assigning a new tag after auto-recovery. + var eventArgs = new ConsumerTagChangedAfterRecoveryEventArgs("tag-original", "tag-recovered", CancellationToken.None); + await fakeConn.RaiseConsumerTagChangedAsync(eventArgs); + + Assert.Equal("tag-recovered", (string?)consumerTagField.GetValue(host)); + } + + [Fact] + public async Task ConsumerTag_NotUpdated_WhenTagBefore_DoesNotMatch() + { + var (host, fakeConn) = await BuildHostAsync(initialConsumerTag: "tag-original"); + + var consumerTagField = typeof(RabbitMqConsumerHost).GetField( + "_consumerTag", + System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic)!; + + // TagBefore refers to a different consumer — should not touch _consumerTag. + var eventArgs = new ConsumerTagChangedAfterRecoveryEventArgs("tag-other-consumer", "tag-other-recovered", CancellationToken.None); + await fakeConn.RaiseConsumerTagChangedAsync(eventArgs); + + Assert.Equal("tag-original", (string?)consumerTagField.GetValue(host)); + } + + // ── Harness ─────────────────────────────────────────────────────────────── + + private static async Task<(RabbitMqConsumerHost Host, FakeUnderlyingConnection FakeConn)> BuildHostAsync( + string initialConsumerTag = "tag-original") + { + var fakeConn = new FakeUnderlyingConnection(); + + var consumerChannel = new Mock(MockBehavior.Loose); + consumerChannel.SetupGet(c => c.IsOpen).Returns(true); + consumerChannel + .Setup(c => c.BasicQosAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + consumerChannel + .Setup(c => c.BasicConsumeAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny(), + It.IsAny>(), + It.IsAny(), It.IsAny())) + .ReturnsAsync(initialConsumerTag); + consumerChannel + .SetupAdd(c => c.ChannelShutdownAsync += It.IsAny>()); + consumerChannel + .SetupRemove(c => c.ChannelShutdownAsync -= It.IsAny>()); + + var publishChannel = new Mock(MockBehavior.Loose); + publishChannel.Setup(c => c.DisposeAsync()).Returns(ValueTask.CompletedTask); + + var conn = new Mock(); + conn.Setup(c => c.CreateChannelAsync(It.IsAny())) + .ReturnsAsync(consumerChannel.Object); + conn.Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(publishChannel.Object); + conn.SetupGet(c => c.UnderlyingConnection).Returns(fakeConn); + + var transport = new Mock(); + transport.SetupGet(t => t.MaxRetries).Returns(3); + transport.SetupGet(t => t.PrefetchCount).Returns((ushort)10); + transport.SetupProperty(t => t.GracefulShutdownTimeoutMilliseconds, 5000); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary()); + + var queue = new Mock(); + queue.SetupGet(q => q.QueueName).Returns("q"); + queue.SetupGet(q => q.ErrorQueueName).Returns("err"); + queue.SetupGet(q => q.AuditQueueName).Returns("audit"); + queue.SetupGet(q => q.DisableErrors).Returns(false); + queue.SetupGet(q => q.AuditingEnabled).Returns(false); + + var bus = new Mock(); + bus.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + bus.SetupGet(b => b.DeadLetterUnhandledMessages).Returns(false); + + var retry = new MessageRetryHandler(3, "err", "q", NullLogger.Instance); + var audit = new MessageAuditPublisher(queue.Object); + + var host = new RabbitMqConsumerHost( + conn.Object, transport.Object, queue.Object, bus.Object, + retry, new RabbitMqAdmissionGate("q"), audit, NullLogger.Instance); + + await host.StartConsumingAsync( + (_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }), + queueName: "q"); + + return (host, fakeConn); + } + + // ── Test double ─────────────────────────────────────────────────────────── + + /// + /// Concrete stub that implements only the parts of + /// needed to raise in tests. + /// All other members throw because + /// they are irrelevant to the recovery scenario under test. + /// + private sealed class FakeUnderlyingConnection : IConnection + { + private AsyncEventHandler? _consumerTagChanged; + + public event AsyncEventHandler ConsumerTagChangeAfterRecoveryAsync + { + add => _consumerTagChanged += value; + remove => _consumerTagChanged -= value; + } + + public Task RaiseConsumerTagChangedAsync(ConsumerTagChangedAfterRecoveryEventArgs args) + { + var handler = _consumerTagChanged; + return handler is not null ? handler(this, args) : Task.CompletedTask; + } + + // ── Unused IConnection members ──────────────────────────────────────── + + public ushort ChannelMax => throw new NotImplementedException(); + public IDictionary ClientProperties => throw new NotImplementedException(); + public TimeSpan Heartbeat => throw new NotImplementedException(); + public bool IsOpen => throw new NotImplementedException(); + public AmqpTcpEndpoint Endpoint => throw new NotImplementedException(); + public IProtocol Protocol => throw new NotImplementedException(); + public uint FrameMax => throw new NotImplementedException(); + public ShutdownEventArgs? CloseReason => throw new NotImplementedException(); + public string ClientProvidedName => throw new NotImplementedException(); + public IDictionary? ServerProperties => throw new NotImplementedException(); + public IEnumerable ShutdownReport => throw new NotImplementedException(); + public int LocalPort => throw new NotImplementedException(); + public int RemotePort => throw new NotImplementedException(); + +#pragma warning disable CS0067 + public event AsyncEventHandler? CallbackExceptionAsync; + public event AsyncEventHandler? ConnectionBlockedAsync; + public event AsyncEventHandler? ConnectionShutdownAsync; + public event AsyncEventHandler? ConnectionUnblockedAsync; + public event AsyncEventHandler? RecoverySucceededAsync; + public event AsyncEventHandler? ConnectionRecoveryErrorAsync; + public event AsyncEventHandler? QueueNameChangedAfterRecoveryAsync; + public event AsyncEventHandler? RecoveringConsumerAsync; +#pragma warning restore CS0067 + + public Task CreateChannelAsync(CreateChannelOptions? options = null, CancellationToken cancellationToken = default) + => throw new NotImplementedException(); + + public Task CloseAsync(ushort reasonCode, string reasonText, TimeSpan timeout, bool abort, CancellationToken cancellationToken = default) + => throw new NotImplementedException(); + + public Task UpdateSecretAsync(string newSecret, string reason, CancellationToken cancellationToken = default) + => throw new NotImplementedException(); + + public void Dispose() { } + public ValueTask DisposeAsync() => ValueTask.CompletedTask; + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostRestartCycleTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostRestartCycleTests.cs new file mode 100644 index 000000000..3cb9a36bf --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostRestartCycleTests.cs @@ -0,0 +1,84 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Verifies the host's single-use contract: PrepareAsync may be called at most once +/// per instance. A second call throws rather than +/// silently latching the admission gate into a permanent reject-everything state (the prior +/// implementation reset _disposeStarted and rotated CTSes but left +/// _admissionGate.IsShuttingDown, _stopStarted, and +/// _consumerCancelledByBroker latched — so the second cycle's deliveries were dropped). +/// Multi-consumer scenarios allocate a fresh host per StartConsumingAsync call. +/// +public sealed class RabbitMqConsumerHostRestartCycleTests +{ + [Fact] + public async Task PrepareAsync_SecondCall_ThrowsInvalidOperationException() + { + var host = BuildHost(); + + await host.PrepareAsync((_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }), "restart-q"); + + var ex = await Assert.ThrowsAsync(() => + host.PrepareAsync((_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }), "restart-q")); + + Assert.Contains("single-use", ex.Message); + + await host.DisposeAsync(); + } + + // ── Harness ─────────────────────────────────────────────────────────────── + + private static RabbitMqConsumerHost BuildHost() + { + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary()); + transport.SetupGet(t => t.GracefulShutdownTimeoutMilliseconds).Returns(1000); + transport.SetupGet(t => t.MaxRetries).Returns(0); + + var queueConfig = new Mock(); + queueConfig.SetupGet(q => q.QueueName).Returns("restart-q"); + queueConfig.SetupGet(q => q.DisableErrors).Returns(false); + queueConfig.SetupGet(q => q.ErrorQueueName).Returns("errors"); + queueConfig.SetupGet(q => q.AuditingEnabled).Returns(false); + + var busConfig = new Mock(); + busConfig.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + busConfig.SetupGet(b => b.DeadLetterUnhandledMessages).Returns(false); + + var channel = new Mock(MockBehavior.Loose); + channel.SetupGet(c => c.IsOpen).Returns(true); + channel.Setup(c => c.BasicQosAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + channel.Setup(c => c.CloseAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + channel.SetupAdd(c => c.ChannelShutdownAsync += It.IsAny>()); + channel.SetupRemove(c => c.ChannelShutdownAsync -= It.IsAny>()); + + var conn = new Mock(); + conn.Setup(c => c.CreateChannelAsync(It.IsAny())) + .ReturnsAsync(channel.Object); + conn.Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(channel.Object); + conn.SetupGet(c => c.UnderlyingConnection).Returns((global::RabbitMQ.Client.IConnection?)null); + + var retryHandler = new MessageRetryHandler(0, "errors", "restart-q", NullLogger.Instance); + var auditPublisher = new MessageAuditPublisher(queueConfig.Object); + var admissionGate = new RabbitMqAdmissionGate("restart-q"); + + return new RabbitMqConsumerHost( + conn.Object, transport.Object, queueConfig.Object, busConfig.Object, + retryHandler, admissionGate, auditPublisher, NullLogger.Instance); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostShutdownDeadlineTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostShutdownDeadlineTests.cs new file mode 100644 index 000000000..01b0c58e1 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostShutdownDeadlineTests.cs @@ -0,0 +1,142 @@ +using System.Reflection; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Verifies that WaitForShutdownOperationAsync attaches a benign continuation to any +/// deadline-abandoned RPC task so the post-deadline fault is observed rather than +/// firing TaskScheduler.UnobservedTaskException. +/// +public sealed class RabbitMqConsumerHostShutdownDeadlineTests +{ + [Fact] + public async Task WaitForShutdownOperationAsync_DeadlineExpired_RpcFaultIsObservedAndDoesNotFireUnobservedTaskException() + { + // Build host and reflect out the private method. + var host = BuildHost(); + await host.PrepareAsync((_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }), "deadline-q"); + + var method = typeof(RabbitMqConsumerHost).GetMethod( + "WaitForShutdownOperationAsync", BindingFlags.Instance | BindingFlags.NonPublic); + + var unobservedFaults = new List(); + + void UnobservedHandler(object? _, UnobservedTaskExceptionEventArgs args) + { + args.SetObserved(); // prevent process crash + lock (unobservedFaults) { unobservedFaults.Add(args.Exception); } + } + + TaskScheduler.UnobservedTaskException += UnobservedHandler; + try + { + // Run in an isolated helper so all strong Task refs drop out of scope before GC. + InvokeDeadlinePathAndFaultRpc(host, method!); + + // Force finalisation. Pre-fix: the rpcTask's exception is unobserved → fires + // UnobservedTaskException. Post-fix: ObserveAbandonedRpc accessed t.Exception → + // the task is already observed → finaliser does nothing. + for (int i = 0; i < 3; i++) + { + GC.Collect(); + GC.WaitForPendingFinalizers(); + await Task.Yield(); + } + + lock (unobservedFaults) + { + Assert.Empty(unobservedFaults); + } + } + finally + { + TaskScheduler.UnobservedTaskException -= UnobservedHandler; + await host.DisposeAsync(); + } + } + + /// + /// Calls WaitForShutdownOperationAsync with an expired deadline, then faults the RPC task. + /// All references to the TaskCompletionSource and the rpcTask are local to this frame and + /// drop out of scope on return, making the task eligible for GC finalisation. + /// + [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)] + private static void InvokeDeadlinePathAndFaultRpc(RabbitMqConsumerHost host, MethodInfo method) + { + var rpcTcs = new TaskCompletionSource(); + var rpcTask = rpcTcs.Task; + + // DateTimeOffset.MinValue forces remaining <= TimeSpan.Zero immediately. + var deadline = DateTimeOffset.MinValue; + var resultTask = (Task)method.Invoke(host, [rpcTask, deadline])!; +#pragma warning disable VSTHRD002 // the zero-remaining path returns a synchronously-completed Task; no deadlock risk. + resultTask.GetAwaiter().GetResult(); +#pragma warning restore VSTHRD002 + + // Fault the rpc. ObserveAbandonedRpc's ExecuteSynchronously continuation runs + // inline here and accesses t.Exception, marking the task "observed". + rpcTcs.TrySetException(new InvalidOperationException("simulated post-deadline RPC abort (channel close)")); + + // rpcTcs and rpcTask go out of scope here. The task holds the continuation tree + // registered by ObserveAbandonedRpc but has no external strong references. + } + + private static RabbitMqConsumerHost BuildHost() + { + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns("localhost"); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary()); + transport.SetupGet(t => t.GracefulShutdownTimeoutMilliseconds).Returns(1000); + transport.SetupGet(t => t.PrefetchCount).Returns((ushort)10); + + var queueConfig = new Mock(); + queueConfig.SetupGet(q => q.QueueName).Returns("deadline-q"); + queueConfig.SetupGet(q => q.DisableErrors).Returns(false); + queueConfig.SetupGet(q => q.ErrorQueueName).Returns("deadline-q.errors"); + queueConfig.SetupGet(q => q.AuditQueueName).Returns(string.Empty); + queueConfig.SetupGet(q => q.AuditingEnabled).Returns(false); + + var busConfig = new Mock(); + busConfig.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + busConfig.SetupGet(b => b.DeadLetterUnhandledMessages).Returns(false); + + var channel = new Mock(MockBehavior.Loose); + channel.SetupGet(c => c.IsOpen).Returns(true); + channel.Setup(c => c.BasicQosAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + channel.Setup(c => c.BasicConsumeAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny(), + It.IsAny?>(), + It.IsAny(), It.IsAny())) + .ReturnsAsync("tag"); + channel.Setup(c => c.CloseAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + channel.Setup(c => c.DisposeAsync()).Returns(ValueTask.CompletedTask); + channel.SetupAdd(c => c.ChannelShutdownAsync += It.IsAny>()); + channel.SetupRemove(c => c.ChannelShutdownAsync -= It.IsAny>()); + + var conn = new Mock(); + conn.Setup(c => c.CreateChannelAsync(It.IsAny())).ReturnsAsync(channel.Object); + conn.Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())).ReturnsAsync(channel.Object); + conn.SetupGet(c => c.UnderlyingConnection).Returns((global::RabbitMQ.Client.IConnection?)null); + + var retryHandler = new MessageRetryHandler(0, "deadline-q.errors", "deadline-q", NullLogger.Instance); + var auditPublisher = new MessageAuditPublisher(queueConfig.Object); + var admissionGate = new RabbitMqAdmissionGate("deadline-q"); + + return new RabbitMqConsumerHost( + conn.Object, transport.Object, queueConfig.Object, busConfig.Object, + retryHandler, admissionGate, auditPublisher, NullLogger.Instance); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostStaleUnregisteredTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostStaleUnregisteredTests.cs new file mode 100644 index 000000000..13e0375b4 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostStaleUnregisteredTests.cs @@ -0,0 +1,123 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Pins the stale-tag gate inside . +/// Under multi-kill chaos, RabbitMQ.Client's async event dispatch can deliver a prior +/// cycle's UnregisteredAsync AFTER the current cycle's RecoverySucceededAsync has cleared +/// the broker-cancelled flag. The gate ignores events whose tag has been superseded by +/// topology recovery's re-issued BasicConsumeAsync. +/// +public sealed class RabbitMqConsumerHostStaleUnregisteredTests +{ + [Fact] + public async Task HandleConsumerUnregistered_with_live_tag_marks_cancelled() + { + var host = await BuildHostWithLiveTagAsync("live"); + + host.HandleConsumerUnregistered(new ConsumerEventArgs(["live"], CancellationToken.None)); + + Assert.True(host.IsCancelledByBroker); + } + + [Fact] + public async Task HandleConsumerUnregistered_with_stale_tag_does_not_mark_cancelled() + { + var host = await BuildHostWithLiveTagAsync("live"); + + host.HandleConsumerUnregistered(new ConsumerEventArgs(["stale-from-prior-kill"], CancellationToken.None)); + + Assert.False(host.IsCancelledByBroker); + } + + [Fact] + public async Task HandleConsumerUnregistered_with_multiple_tags_including_live_marks_cancelled() + { + var host = await BuildHostWithLiveTagAsync("live"); + + host.HandleConsumerUnregistered(new ConsumerEventArgs(["stale", "live", "another-stale"], CancellationToken.None)); + + Assert.True(host.IsCancelledByBroker); + } + + [Fact] + public async Task HandleConsumerUnregistered_with_empty_tags_marks_cancelled_fallback() + { + var host = await BuildHostWithLiveTagAsync("live"); + + host.HandleConsumerUnregistered(new ConsumerEventArgs([], CancellationToken.None)); + + Assert.True(host.IsCancelledByBroker); + } + + // ── Harness ─────────────────────────────────────────────────────────────── + + private static async Task BuildHostWithLiveTagAsync(string liveTag) + { + var consumerChannel = new Mock(MockBehavior.Loose); + consumerChannel.SetupGet(c => c.IsOpen).Returns(true); + consumerChannel.Setup(c => c.BasicQosAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + consumerChannel.Setup(c => c.BasicConsumeAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny(), + It.IsAny?>(), + It.IsAny(), It.IsAny())) + .ReturnsAsync(liveTag); + consumerChannel.Setup(c => c.CloseAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + consumerChannel.Setup(c => c.DisposeAsync()).Returns(ValueTask.CompletedTask); + consumerChannel.SetupAdd(c => c.ChannelShutdownAsync += It.IsAny>()); + consumerChannel.SetupRemove(c => c.ChannelShutdownAsync -= It.IsAny>()); + + var publishChannel = new Mock(MockBehavior.Loose); + publishChannel.Setup(c => c.DisposeAsync()).Returns(ValueTask.CompletedTask); + + var conn = new Mock(); + conn.Setup(c => c.CreateChannelAsync(It.IsAny())) + .ReturnsAsync(consumerChannel.Object); + conn.Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(publishChannel.Object); + conn.SetupGet(c => c.UnderlyingConnection).Returns((IConnection?)null); + + var transport = new Mock(); + transport.SetupGet(t => t.MaxRetries).Returns(3); + transport.SetupGet(t => t.PrefetchCount).Returns((ushort)10); + transport.SetupProperty(t => t.GracefulShutdownTimeoutMilliseconds, 5000); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary()); + + var queue = new Mock(); + queue.SetupGet(q => q.QueueName).Returns("q"); + queue.SetupGet(q => q.ErrorQueueName).Returns("err"); + queue.SetupGet(q => q.AuditQueueName).Returns("audit"); + queue.SetupGet(q => q.DisableErrors).Returns(false); + queue.SetupGet(q => q.AuditingEnabled).Returns(false); + + var bus = new Mock(); + bus.SetupGet(b => b.IncludeMachineNameInHeaders).Returns(false); + bus.SetupGet(b => b.DeadLetterUnhandledMessages).Returns(false); + + var retry = new MessageRetryHandler(3, "err", "q", NullLogger.Instance); + var audit = new MessageAuditPublisher(queue.Object); + + var host = new RabbitMqConsumerHost( + conn.Object, transport.Object, queue.Object, bus.Object, + retry, new RabbitMqAdmissionGate("q"), audit, NullLogger.Instance); + + await host.StartConsumingAsync( + (_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }), + queueName: "q"); + + return host; + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostTests.cs new file mode 100644 index 000000000..a3b696368 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqConsumerHostTests.cs @@ -0,0 +1,1723 @@ +using System.Reflection; +using Microsoft.Extensions.Logging.Abstractions; +using Microsoft.Extensions.Time.Testing; +using Moq; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public class RabbitMqConsumerHostTests +{ + private static Mock CreateMockChannel() + { + var channel = new Mock(); + channel.Setup(c => c.IsOpen).Returns(true); + channel.Setup(c => c.BasicQosAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + channel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns(ValueTask.CompletedTask); + channel.Setup(c => c.BasicConsumeAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny(), + It.IsAny?>(), + It.IsAny(), It.IsAny())) + .ReturnsAsync("tag"); + channel.Setup(c => c.BasicCancelAsync( + It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + channel.Setup(c => c.QueueBindAsync(It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny>(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + channel.Setup(c => c.QueueDeleteAsync(It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny())) + .ReturnsAsync(0u); + channel.Setup(c => c.CloseAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())).Returns(Task.CompletedTask); + channel.Setup(c => c.DisposeAsync()).Returns(ValueTask.CompletedTask); + channel.Setup(c => c.BasicAckAsync(It.IsAny(), It.IsAny(), It.IsAny())).Returns(ValueTask.CompletedTask); + channel.Setup(c => c.BasicNackAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())).Returns(ValueTask.CompletedTask); + return channel; + } + + // Returns the consumer channel (the one bound to the AsyncEventingBasicConsumer via + // BasicConsumeAsync). Tests assert on this mock for ack/nack + consumer lifecycle. + // The host also opens a second publish channel for retry/audit/error publishes; + // that mock is available from the returned tuple if a test needs to reason about it. + private static (Mock Connection, Mock ConsumerChannel, Mock PublishChannel) MockConnection() + { + var consumerChannel = CreateMockChannel(); + var publishChannel = CreateMockChannel(); + var conn = new Mock(); + // Consumer channel is opened via the parameterless overload; the helper publish + // channel is opened via the options overload so it can enable publisher confirms. + conn.Setup(c => c.CreateChannelAsync(It.IsAny())).ReturnsAsync(consumerChannel.Object); + conn.Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())).ReturnsAsync(publishChannel.Object); + return (conn, consumerChannel, publishChannel); + } + + private static Mock MakeTransportCfg(ushort prefetch = 10, bool autoDelete = false, bool disablePrefetch = false) + { + return MakeTransportCfg(prefetch, autoDelete, disablePrefetch, null); + } + + private static Mock MakeTransportCfg( + ushort prefetch, + bool autoDelete, + bool disablePrefetch, + int? gracefulShutdownTimeoutMs) + { + var cfg = new Mock(); + cfg.SetupGet(c => c.MaxRetries).Returns(3); + cfg.SetupGet(c => c.PrefetchCount).Returns(prefetch); + cfg.SetupProperty(c => c.GracefulShutdownTimeoutMilliseconds, gracefulShutdownTimeoutMs ?? 5000); + var settings = new Dictionary(); + if (autoDelete) + { + settings[RabbitMQSettingKeys.AutoDelete] = true; + } + + if (disablePrefetch) + { + settings[RabbitMQSettingKeys.DisablePrefetch] = true; + } + + cfg.SetupGet(c => c.ClientSettings).Returns(settings); + return cfg; + } + + private static Mock MakeQueueCfg() + { + var cfg = new Mock(); + cfg.SetupGet(c => c.QueueName).Returns("q"); + cfg.SetupGet(c => c.ErrorQueueName).Returns("err"); + cfg.SetupGet(c => c.AuditQueueName).Returns("audit"); + cfg.SetupGet(c => c.DisableErrors).Returns(false); + cfg.SetupGet(c => c.AuditingEnabled).Returns(false); + return cfg; + } + + private static Mock MakeBusCfg() + { + var cfg = new Mock(); + cfg.SetupGet(c => c.IncludeMachineNameInHeaders).Returns(false); + return cfg; + } + + [Fact] + public async Task StartConsumingAsync_SetsBasicQos_WhenPrefetchEnabled() + { + var (conn, channel, _) = MockConnection(); + var tcfg = MakeTransportCfg(prefetch: 7); + var qcfg = MakeQueueCfg(); + var retry = new MessageRetryHandler(3, "err", "q", NullLogger.Instance); + var audit = new MessageAuditPublisher(qcfg.Object); + + var host = new RabbitMqConsumerHost(conn.Object, tcfg.Object, qcfg.Object, MakeBusCfg().Object, retry, new RabbitMqAdmissionGate("q"), audit, NullLogger.Instance); + + await host.StartConsumingAsync((_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }), "q"); + + channel.Verify(c => c.BasicQosAsync(0, 7, false, It.IsAny()), Times.Once); + } + + [Theory] + [InlineData((ushort)5, (ushort)5)] + [InlineData((long)7L, (ushort)7)] + [InlineData("9", (ushort)9)] + public async Task StartConsumingAsync_AcceptsNonIntPrefetchSettingOverride(object settingValue, ushort expected) + { + // The prefetch override must accept every boxed shape that configuration + // providers emit (ushort, long, numeric string, etc.). A hard cast to int + // before Convert.ToUInt16 would throw InvalidCastException on valid input. + var (conn, channel, _) = MockConnection(); + var tcfg = new Mock(); + tcfg.SetupGet(c => c.MaxRetries).Returns(3); + tcfg.SetupGet(c => c.PrefetchCount).Returns((ushort)1); + tcfg.SetupProperty(c => c.GracefulShutdownTimeoutMilliseconds, 5000); + var settings = new Dictionary + { + [RabbitMQSettingKeys.PrefetchCount] = settingValue + }; + tcfg.SetupGet(c => c.ClientSettings).Returns(settings); + + var qcfg = MakeQueueCfg(); + var retry = new MessageRetryHandler(3, "err", "q", NullLogger.Instance); + var audit = new MessageAuditPublisher(qcfg.Object); + + var host = new RabbitMqConsumerHost(conn.Object, tcfg.Object, qcfg.Object, MakeBusCfg().Object, retry, new RabbitMqAdmissionGate("q"), audit, NullLogger.Instance); + + await host.StartConsumingAsync((_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }), "q"); + + channel.Verify(c => c.BasicQosAsync(0, expected, false, It.IsAny()), Times.Once); + } + + [Fact] + public async Task StartConsumingAsync_SkipsBasicQos_WhenPrefetchDisabled() + { + var (conn, channel, _) = MockConnection(); + var tcfg = MakeTransportCfg(disablePrefetch: true); + var qcfg = MakeQueueCfg(); + var retry = new MessageRetryHandler(3, "err", "q", NullLogger.Instance); + var audit = new MessageAuditPublisher(qcfg.Object); + + var host = new RabbitMqConsumerHost(conn.Object, tcfg.Object, qcfg.Object, MakeBusCfg().Object, retry, new RabbitMqAdmissionGate("q"), audit, NullLogger.Instance); + + await host.StartConsumingAsync((_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }), "q"); + + channel.Verify(c => c.BasicQosAsync( + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny()), + Times.Never); + } + + [Fact] + public async Task StartConsumingAsync_CreatesPublishChannel_WithPublisherConfirmsEnabled() + { + // The helper channel carries retry/audit/error publishes. Without publisher + // confirms + tracking, BasicPublishAsync returns before the broker acks, so a + // lost helper publish can be silently dropped while the original message is + // acked. Confirms must be enabled to match the main Producer channel. + var (conn, _, _) = MockConnection(); + var tcfg = MakeTransportCfg(); + var qcfg = MakeQueueCfg(); + var retry = new MessageRetryHandler(3, "err", "q", NullLogger.Instance); + var audit = new MessageAuditPublisher(qcfg.Object); + + var host = new RabbitMqConsumerHost(conn.Object, tcfg.Object, qcfg.Object, MakeBusCfg().Object, retry, new RabbitMqAdmissionGate("q"), audit, NullLogger.Instance); + + await host.StartConsumingAsync((_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }), "q"); + + conn.Verify(c => c.CreateChannelAsync( + It.Is(o => + o != null + && o.PublisherConfirmationsEnabled + && o.PublisherConfirmationTrackingEnabled), + It.IsAny()), + Times.Once); + conn.Verify(c => c.CreateChannelAsync(It.IsAny()), Times.Once); + } + + [Fact] + public async Task StartConsumingAsync_CancellationToken_FlowsToConnectionCreateChannel() + { + // Broker/DNS/TCP stalls during channel open must honor the startup CT — + // a cancelled StartConsumingAsync must not block on connection setup. + CancellationToken consumerToken = default; + CancellationToken publishToken = default; + var consumerChannel = CreateMockChannel(); + var publishChannel = CreateMockChannel(); + var conn = new Mock(); + conn.Setup(c => c.CreateChannelAsync(It.IsAny())) + .Callback(ct => consumerToken = ct) + .ReturnsAsync(consumerChannel.Object); + conn.Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())) + .Callback((_, ct) => publishToken = ct) + .ReturnsAsync(publishChannel.Object); + + var tcfg = MakeTransportCfg(); + var qcfg = MakeQueueCfg(); + var retry = new MessageRetryHandler(3, "err", "q", NullLogger.Instance); + var audit = new MessageAuditPublisher(qcfg.Object); + + var host = new RabbitMqConsumerHost(conn.Object, tcfg.Object, qcfg.Object, MakeBusCfg().Object, retry, new RabbitMqAdmissionGate("q"), audit, NullLogger.Instance); + + using var cts = new CancellationTokenSource(); + await host.StartConsumingAsync((_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }), "q", cancellationToken: cts.Token); + + Assert.Equal(cts.Token, consumerToken); + Assert.Equal(cts.Token, publishToken); + } + + [Fact] + public async Task EventAsync_DoesNotObserveStartupCancellation() + { + // Delivery callbacks must observe the consumer-lifetime token, not the + // startup token. Otherwise a caller cancelling the startup CT after + // StartConsumingAsync returns would hand every subsequent delivery a + // pre-cancelled token and the handler would never run. + var (conn, _, _) = MockConnection(); + var tcfg = MakeTransportCfg(); + var qcfg = MakeQueueCfg(); + var retry = new MessageRetryHandler(3, "err", "q", NullLogger.Instance); + var audit = new MessageAuditPublisher(qcfg.Object); + + CancellationToken observed = new CancellationToken(canceled: true); + Task handler(ReadOnlyMemory body, string type, IDictionary headers, CancellationToken ct) + { + observed = ct; + return Task.FromResult(new ConsumeEventResult { Success = true }); + } + + var host = new RabbitMqConsumerHost(conn.Object, tcfg.Object, qcfg.Object, MakeBusCfg().Object, retry, new RabbitMqAdmissionGate("q"), audit, NullLogger.Instance); + + using var startupCts = new CancellationTokenSource(); + await host.StartConsumingAsync(handler, "q", cancellationToken: startupCts.Token); + + // Simulate the startup scope ending — caller cancels its startup CT. + startupCts.Cancel(); + + await DeliverMessageAsync(host, [1], new Dictionary + { + [HeaderKeys.TypeName] = System.Text.Encoding.UTF8.GetBytes(typeof(object).FullName!), + }); + + Assert.False(observed.IsCancellationRequested, + "Delivery callback must not observe the startup cancellation token."); + } + + [Fact] + public async Task ConsumeMessageTypeAsync_BindsQueueToExchange() + { + var (conn, channel, _) = MockConnection(); + var tcfg = MakeTransportCfg(); + var qcfg = MakeQueueCfg(); + var retry = new MessageRetryHandler(3, "err", "q", NullLogger.Instance); + var audit = new MessageAuditPublisher(qcfg.Object); + + var host = new RabbitMqConsumerHost(conn.Object, tcfg.Object, qcfg.Object, MakeBusCfg().Object, retry, new RabbitMqAdmissionGate("q"), audit, NullLogger.Instance); + + await host.StartConsumingAsync((_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }), "q"); + await host.ConsumeMessageTypeAsync("SomeMsg"); + + channel.Verify(c => c.QueueBindAsync("q", "SomeMsg", string.Empty, + It.IsAny>(), It.IsAny(), It.IsAny()), + Times.Once); + } + + [Fact] + public async Task DisposeAsync_DeletesRetryQueue_WhenAutoDelete() + { + var (conn, channel, _) = MockConnection(); + var tcfg = MakeTransportCfg(autoDelete: true); + var qcfg = MakeQueueCfg(); + var retry = new MessageRetryHandler(3, "err", "q", NullLogger.Instance); + var audit = new MessageAuditPublisher(qcfg.Object); + + var host = new RabbitMqConsumerHost(conn.Object, tcfg.Object, qcfg.Object, MakeBusCfg().Object, retry, new RabbitMqAdmissionGate("q"), audit, NullLogger.Instance); + await host.StartConsumingAsync((_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }), "q"); + + await host.DisposeAsync(); + + channel.Verify(c => c.QueueDeleteAsync("q.Retries", false, false, false, It.IsAny()), Times.Once); + } + + [Fact] + public async Task DisposeAsync_SkipsRetryQueueDelete_WhenAutoDeleteFalse() + { + var (conn, channel, _) = MockConnection(); + var tcfg = MakeTransportCfg(autoDelete: false); + var qcfg = MakeQueueCfg(); + var retry = new MessageRetryHandler(3, "err", "q", NullLogger.Instance); + var audit = new MessageAuditPublisher(qcfg.Object); + + var host = new RabbitMqConsumerHost(conn.Object, tcfg.Object, qcfg.Object, MakeBusCfg().Object, retry, new RabbitMqAdmissionGate("q"), audit, NullLogger.Instance); + await host.StartConsumingAsync((_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }), "q"); + + await host.DisposeAsync(); + + channel.Verify(c => c.QueueDeleteAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny()), Times.Never); + } + + [Fact] + public async Task DisposeAsync_SwallowsObjectDisposedException_OnQueueDelete() + { + var (conn, channel, _) = MockConnection(); + channel.Setup(c => c.QueueDeleteAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .ThrowsAsync(new ObjectDisposedException("channel")); + var tcfg = MakeTransportCfg(autoDelete: true); + var qcfg = MakeQueueCfg(); + var retry = new MessageRetryHandler(3, "err", "q", NullLogger.Instance); + var audit = new MessageAuditPublisher(qcfg.Object); + + var host = new RabbitMqConsumerHost(conn.Object, tcfg.Object, qcfg.Object, MakeBusCfg().Object, retry, new RabbitMqAdmissionGate("q"), audit, NullLogger.Instance); + await host.StartConsumingAsync((_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }), "q"); + + var thrown = await Record.ExceptionAsync(() => host.DisposeAsync().AsTask()); + Assert.Null(thrown); + } + + [Fact] + public async Task DisposeAsync_WithoutInFlightWork_CompletesImmediately() + { + var (conn, channel, _) = MockConnection(); + var timeProvider = new FakeTimeProvider(); + var host = new RabbitMqConsumerHost( + conn.Object, + MakeTransportCfg(prefetch: 10, autoDelete: false, disablePrefetch: false, gracefulShutdownTimeoutMs: 50).Object, + MakeQueueCfg().Object, + MakeBusCfg().Object, + new MessageRetryHandler(3, "err", "q", NullLogger.Instance), + new RabbitMqAdmissionGate("q"), + new MessageAuditPublisher(MakeQueueCfg().Object), + NullLogger.Instance, + timeProvider); + + await host.StartConsumingAsync((_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }), "q"); + + // "CompletesImmediately" means the dispose returns promptly when there + // is no in-flight work — not that it completes synchronously without + // any continuation scheduling. Asserting on a single Task.Yield was + // sensitive to scheduler jitter under load (test classes run in + // parallel), so we assert the looser-but-still-meaningful guarantee + // that dispose completes well within the gracefulShutdownTimeoutMs + // (50ms) regime — anything that exceeds 2s would mean dispose is + // genuinely stuck, not just losing scheduler ticks. + await host.DisposeAsync().AsTask().WaitAsync(TimeSpan.FromSeconds(2)); + + channel.Verify(c => c.BasicCancelAsync("tag", false, It.IsAny()), Times.Once); + channel.Verify(c => c.CloseAsync(200, "Goodbye", false, It.IsAny()), Times.Once); + } + + [Fact] + public async Task DisposeAsync_CancelsConsumerBeforeClosingChannel() + { + var (conn, channel, _) = MockConnection(); + var sequence = new MockSequence(); + channel.InSequence(sequence) + .Setup(c => c.BasicCancelAsync("tag", false, It.IsAny())) + .Returns(Task.CompletedTask); + channel.InSequence(sequence) + .Setup(c => c.CloseAsync(200, "Goodbye", false, It.IsAny())) + .Returns(Task.CompletedTask); + + var host = new RabbitMqConsumerHost( + conn.Object, + MakeTransportCfg().Object, + MakeQueueCfg().Object, + MakeBusCfg().Object, + new MessageRetryHandler(3, "err", "q", NullLogger.Instance), + new RabbitMqAdmissionGate("q"), + new MessageAuditPublisher(MakeQueueCfg().Object), + NullLogger.Instance); + + await host.StartConsumingAsync((_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }), "q"); + + await host.DisposeAsync(); + + channel.Verify(c => c.BasicCancelAsync("tag", false, It.IsAny()), Times.Once); + channel.Verify(c => c.CloseAsync(200, "Goodbye", false, It.IsAny()), Times.Once); + } + + [Fact] + public async Task DisposeAsync_WaitsForInFlightMessageToCompleteWithinGraceWindow() + { + var (conn, channel, _) = MockConnection(); + var timeProvider = new FakeTimeProvider(); + var handlerStarted = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var allowHandlerToFinish = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var cancelObserved = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + channel.Setup(c => c.BasicCancelAsync("tag", false, It.IsAny())) + .Returns(async () => + { + cancelObserved.SetResult(); + await Task.CompletedTask; + }); + var host = new RabbitMqConsumerHost( + conn.Object, + MakeTransportCfg(prefetch: 10, autoDelete: false, disablePrefetch: false, gracefulShutdownTimeoutMs: 500).Object, + MakeQueueCfg().Object, + MakeBusCfg().Object, + new MessageRetryHandler(3, "err", "q", NullLogger.Instance), + new RabbitMqAdmissionGate("q"), + new MessageAuditPublisher(MakeQueueCfg().Object), + NullLogger.Instance, + timeProvider); + + await host.StartConsumingAsync( + async (_, _, _, _) => + { + handlerStarted.SetResult(); + await allowHandlerToFinish.Task; + return new ConsumeEventResult { Success = true }; + }, + "q"); + + var deliveryTask = DeliverMessageAsync(host, new byte[1], new Dictionary { [HeaderKeys.TypeName] = "SomeType" }); + await handlerStarted.Task; + + var disposeTask = host.DisposeAsync().AsTask(); + await cancelObserved.Task; + + Assert.False(disposeTask.IsCompleted); + timeProvider.Advance(TimeSpan.FromMilliseconds(499)); + await Task.Yield(); + + Assert.False(disposeTask.IsCompleted); + allowHandlerToFinish.SetResult(); + timeProvider.Advance(TimeSpan.FromMilliseconds(50)); + + await disposeTask; + await deliveryTask; + + channel.Verify(c => c.BasicCancelAsync("tag", false, It.IsAny()), Times.Once); + channel.Verify(c => c.CloseAsync(200, "Goodbye", false, It.IsAny()), Times.Once); + } + + [Fact] + public async Task DisposeAsync_ClosesChannelWhenGraceWindowExpires() + { + var (conn, channel, _) = MockConnection(); + var timeProvider = new FakeTimeProvider(); + var handlerStarted = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var allowHandlerToFinish = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var cancelObserved = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + channel.Setup(c => c.BasicCancelAsync("tag", false, It.IsAny())) + .Returns(async () => + { + cancelObserved.SetResult(); + await Task.CompletedTask; + }); + var host = new RabbitMqConsumerHost( + conn.Object, + MakeTransportCfg(prefetch: 10, autoDelete: false, disablePrefetch: false, gracefulShutdownTimeoutMs: 50).Object, + MakeQueueCfg().Object, + MakeBusCfg().Object, + new MessageRetryHandler(3, "err", "q", NullLogger.Instance), + new RabbitMqAdmissionGate("q"), + new MessageAuditPublisher(MakeQueueCfg().Object), + NullLogger.Instance, + timeProvider); + + await host.StartConsumingAsync( + async (_, _, _, _) => + { + handlerStarted.SetResult(); + await allowHandlerToFinish.Task; + return new ConsumeEventResult { Success = true }; + }, + "q"); + + var deliveryTask = DeliverMessageAsync(host, new byte[1], new Dictionary { [HeaderKeys.TypeName] = "SomeType" }); + await handlerStarted.Task; + + var disposeTask = host.DisposeAsync().AsTask(); + await cancelObserved.Task; + + Assert.False(disposeTask.IsCompleted); + + timeProvider.Advance(TimeSpan.FromMilliseconds(49)); + await Task.Yield(); + + Assert.False(disposeTask.IsCompleted); + + timeProvider.Advance(TimeSpan.FromMilliseconds(1)); + await Task.Yield(); + + Assert.True(disposeTask.IsCompleted); + channel.Verify(c => c.BasicCancelAsync("tag", false, It.IsAny()), Times.Once); + channel.Verify(c => c.CloseAsync(200, "Goodbye", false, It.IsAny()), Times.Once); + + allowHandlerToFinish.SetResult(); + await deliveryTask; + } + + [Fact] + public async Task DisposeAsync_CancelsConsumerBeforeWaitingForInFlightHandler() + { + var (conn, channel, _) = MockConnection(); + var timeProvider = new FakeTimeProvider(); + var handlerStarted = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var allowHandlerToFinish = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var cancelObserved = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + channel.Setup(c => c.BasicCancelAsync("tag", false, It.IsAny())) + .Returns(async () => + { + cancelObserved.SetResult(); + await Task.CompletedTask; + }); + + var host = new RabbitMqConsumerHost( + conn.Object, + MakeTransportCfg(prefetch: 10, autoDelete: false, disablePrefetch: false, gracefulShutdownTimeoutMs: 500).Object, + MakeQueueCfg().Object, + MakeBusCfg().Object, + new MessageRetryHandler(3, "err", "q", NullLogger.Instance), + new RabbitMqAdmissionGate("q"), + new MessageAuditPublisher(MakeQueueCfg().Object), + NullLogger.Instance, + timeProvider); + + await host.StartConsumingAsync( + async (_, _, _, _) => + { + handlerStarted.SetResult(); + await allowHandlerToFinish.Task; + return new ConsumeEventResult { Success = true }; + }, + "q"); + + var deliveryTask = DeliverMessageAsync(host, new byte[1], new Dictionary { [HeaderKeys.TypeName] = "SomeType" }); + await handlerStarted.Task; + + var disposeTask = host.DisposeAsync().AsTask(); + await cancelObserved.Task; + + Assert.False(disposeTask.IsCompleted); + + timeProvider.Advance(TimeSpan.FromMilliseconds(500)); + await disposeTask; + + allowHandlerToFinish.SetResult(); + timeProvider.Advance(TimeSpan.FromMilliseconds(50)); + await deliveryTask; + + channel.Verify(c => c.BasicCancelAsync("tag", false, It.IsAny()), Times.Once); + } + + [Fact] + public async Task DisposeAsync_WhenGraceWindowExpires_LateFailure_DoesNotRetryOrAck() + { + var (conn, channel, _) = MockConnection(); + var timeProvider = new FakeTimeProvider(); + var handlerStarted = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var allowHandlerToFinish = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var closeStarted = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var closeGate = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + + channel.Setup(c => c.CloseAsync(200, "Goodbye", false, It.IsAny())) + .Returns(async () => + { + closeStarted.SetResult(); + await closeGate.Task; + }); + + var host = new RabbitMqConsumerHost( + conn.Object, + MakeTransportCfg(prefetch: 10, autoDelete: false, disablePrefetch: false, gracefulShutdownTimeoutMs: 100).Object, + MakeQueueCfg().Object, + MakeBusCfg().Object, + new MessageRetryHandler(3, "err", "q", NullLogger.Instance), + new RabbitMqAdmissionGate("q"), + new MessageAuditPublisher(MakeQueueCfg().Object), + NullLogger.Instance, + timeProvider); + + await host.StartConsumingAsync( + async (_, _, _, _) => + { + handlerStarted.SetResult(); + await allowHandlerToFinish.Task; + return new ConsumeEventResult + { + Success = false, + Exception = new InvalidOperationException("boom") + }; + }, + "q"); + + var deliveryTask = DeliverMessageAsync(host, new byte[1], new Dictionary { [HeaderKeys.TypeName] = "SomeType" }); + await handlerStarted.Task; + + var disposeTask = host.DisposeAsync().AsTask(); + timeProvider.Advance(TimeSpan.FromMilliseconds(100)); + await closeStarted.Task; + + allowHandlerToFinish.SetResult(); + await deliveryTask; + + channel.Verify(c => c.BasicPublishAsync( + string.Empty, "q.Retries", true, + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Never); + channel.Verify(c => c.BasicAckAsync(It.IsAny(), It.IsAny(), It.IsAny()), Times.Never); + channel.Verify(c => c.BasicNackAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny()), Times.Never); + + closeGate.SetResult(); + await disposeTask; + } + + [Fact] + public async Task DisposeAsync_AfterCancel_LateDispatch_DoesNotStartHandler_AndLeavesMessageUnackedForRedelivery() + { + var (conn, channel, _) = MockConnection(); + var timeProvider = new FakeTimeProvider(); + var handlerStarted = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var closeStarted = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var closeGate = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var releaseCancel = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + + channel.Setup(c => c.BasicCancelAsync("tag", false, It.IsAny())) + .Returns(async () => + { + await releaseCancel.Task; + }); + channel.Setup(c => c.CloseAsync(200, "Goodbye", false, It.IsAny())) + .Returns(async () => + { + closeStarted.SetResult(); + await closeGate.Task; + }); + + var host = new RabbitMqConsumerHost( + conn.Object, + MakeTransportCfg(prefetch: 10, autoDelete: false, disablePrefetch: false, gracefulShutdownTimeoutMs: 50).Object, + MakeQueueCfg().Object, + MakeBusCfg().Object, + new MessageRetryHandler(3, "err", "q", NullLogger.Instance), + new RabbitMqAdmissionGate("q"), + new MessageAuditPublisher(MakeQueueCfg().Object), + NullLogger.Instance, + timeProvider); + + await host.StartConsumingAsync( + (_, _, _, _) => + { + handlerStarted.SetResult(); + return Task.FromResult(new ConsumeEventResult { Success = true }); + }, + "q"); + + // Capture the AsyncEventingBasicConsumer reference BEFORE starting dispose. The + // dispose path may null the host's _consumer field once CloseChannelAsync's + // deadline-abandonment branch fires (WaitForShutdownOperationAsync returns + // immediately without awaiting model.CloseAsync once deadline elapses), so + // reading via reflection AFTER closeStarted is timing-sensitive under + // parallel test load. The "late delivery" we want to drive is one that + // fires on the AsyncEventingBasicConsumer instance regardless of the host's + // current field state — capture it now while it's still wired up. + var capturedConsumer = (global::RabbitMQ.Client.Events.AsyncEventingBasicConsumer)typeof(RabbitMqConsumerHost) + .GetField("_consumer", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance)! + .GetValue(host)!; + + var disposeTask = host.DisposeAsync().AsTask(); + releaseCancel.SetResult(); + + timeProvider.Advance(TimeSpan.FromMilliseconds(50)); + await closeStarted.Task; + + var lateDeliveryTask = DeliverMessageOnConsumerAsync(capturedConsumer, new byte[1], new Dictionary { [HeaderKeys.TypeName] = "SomeType" }); + + var completed = await Task.WhenAny(handlerStarted.Task, lateDeliveryTask, Task.Delay(TimeSpan.FromSeconds(2))); + Assert.NotSame(handlerStarted.Task, completed); + + await lateDeliveryTask; + + channel.Verify(c => c.BasicAckAsync(It.IsAny(), It.IsAny(), It.IsAny()), Times.Never); + channel.Verify(c => c.BasicNackAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny()), Times.Never); + + closeGate.SetResult(); + await disposeTask; + } + + [Fact] + public async Task DisposeAsync_StalledBasicCancel_CompletesWithinGraceWindow() + { + var (conn, channel, _) = MockConnection(); + var timeProvider = new FakeTimeProvider(); + var cancelGate = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + + channel.Setup(c => c.BasicCancelAsync("tag", false, It.IsAny())) + .Returns(cancelGate.Task); + + var host = new RabbitMqConsumerHost( + conn.Object, + MakeTransportCfg(prefetch: 10, autoDelete: false, disablePrefetch: false, gracefulShutdownTimeoutMs: 50).Object, + MakeQueueCfg().Object, + MakeBusCfg().Object, + new MessageRetryHandler(3, "err", "q", NullLogger.Instance), + new RabbitMqAdmissionGate("q"), + new MessageAuditPublisher(MakeQueueCfg().Object), + NullLogger.Instance, + timeProvider); + + await host.StartConsumingAsync((_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }), "q"); + + var disposeTask = host.DisposeAsync().AsTask(); + + Assert.False(disposeTask.IsCompleted); + timeProvider.Advance(TimeSpan.FromMilliseconds(49)); + await Task.Yield(); + Assert.False(disposeTask.IsCompleted); + + timeProvider.Advance(TimeSpan.FromMilliseconds(1)); + await Task.Yield(); + Assert.True(disposeTask.IsCompleted); + + await disposeTask; + + channel.Verify(c => c.BasicCancelAsync("tag", false, It.IsAny()), Times.Once); + channel.Verify(c => c.DisposeAsync(), Times.Once); + } + + [Fact] + public async Task DisposeAsync_StalledClose_CompletesWithinGraceWindow() + { + var (conn, channel, _) = MockConnection(); + var timeProvider = new FakeTimeProvider(); + var closeGate = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + + channel.Setup(c => c.CloseAsync(200, "Goodbye", false, It.IsAny())) + .Returns(closeGate.Task); + + // The stalled CloseAsync forces the channel host's DisposeAsync — which the consumer host + // does NOT await once the grace deadline wins — to dispose the model channel on a background + // continuation. Signal when that disposal actually runs so the assertions can wait for it + // deterministically rather than racing a single Task.Yield against the abandoned task. + var channelDisposed = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + channel.Setup(c => c.DisposeAsync()) + .Callback(() => channelDisposed.TrySetResult()) + .Returns(ValueTask.CompletedTask); + + var host = new RabbitMqConsumerHost( + conn.Object, + MakeTransportCfg(prefetch: 10, autoDelete: false, disablePrefetch: false, gracefulShutdownTimeoutMs: 50).Object, + MakeQueueCfg().Object, + MakeBusCfg().Object, + new MessageRetryHandler(3, "err", "q", NullLogger.Instance), + new RabbitMqAdmissionGate("q"), + new MessageAuditPublisher(MakeQueueCfg().Object), + NullLogger.Instance, + timeProvider); + + await host.StartConsumingAsync((_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }), "q"); + + var disposeTask = host.DisposeAsync().AsTask(); + + Assert.False(disposeTask.IsCompleted); + timeProvider.Advance(TimeSpan.FromMilliseconds(49)); + await Task.Yield(); + Assert.False(disposeTask.IsCompleted); + + // Crossing the 50ms grace window unblocks dispose: the deadline wins the close race, so the + // consumer host abandons the stalled CloseAsync and returns while the channel host disposes + // the model on a background task once the close-deadline token cancels. Await both the + // dispose and the background channel disposal on a real-time budget so the verification is + // deterministic regardless of thread-pool scheduling. + timeProvider.Advance(TimeSpan.FromMilliseconds(1)); + + await disposeTask.WaitAsync(TimeSpan.FromSeconds(10)); + await channelDisposed.Task.WaitAsync(TimeSpan.FromSeconds(10)); + + channel.Verify(c => c.CloseAsync(200, "Goodbye", false, It.IsAny()), Times.Once); + channel.Verify(c => c.DisposeAsync(), Times.Once); + } + + [Fact] + public async Task DisposeAsync_HonorsRemainingGraceWindowBelowPollInterval() + { + var (conn, channel, _) = MockConnection(); + var timeProvider = new FakeTimeProvider(); + var handlerStarted = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var allowHandlerToFinish = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + + var host = new RabbitMqConsumerHost( + conn.Object, + MakeTransportCfg(prefetch: 10, autoDelete: false, disablePrefetch: false, gracefulShutdownTimeoutMs: 25).Object, + MakeQueueCfg().Object, + MakeBusCfg().Object, + new MessageRetryHandler(3, "err", "q", NullLogger.Instance), + new RabbitMqAdmissionGate("q"), + new MessageAuditPublisher(MakeQueueCfg().Object), + NullLogger.Instance, + timeProvider); + + await host.StartConsumingAsync( + async (_, _, _, _) => + { + handlerStarted.SetResult(); + await allowHandlerToFinish.Task; + return new ConsumeEventResult { Success = true }; + }, + "q"); + + var deliveryTask = DeliverMessageAsync(host, new byte[1], new Dictionary { [HeaderKeys.TypeName] = "SomeType" }); + await handlerStarted.Task; + + var disposeTask = host.DisposeAsync().AsTask(); + + timeProvider.Advance(TimeSpan.FromMilliseconds(24)); + await Task.Yield(); + Assert.False(disposeTask.IsCompleted); + + timeProvider.Advance(TimeSpan.FromMilliseconds(1)); + await Task.Yield(); + Assert.True(disposeTask.IsCompleted); + + allowHandlerToFinish.SetResult(); + await deliveryTask; + channel.Verify(c => c.CloseAsync(200, "Goodbye", false, It.IsAny()), Times.Once); + } + + [Fact] + public async Task DisposeAsync_WhenRetryPublishStalls_CancelsPublishAtShutdownDeadline_AndLeavesMessageUnacked() + { + var (conn, channel, publishChannel) = MockConnection(); + var timeProvider = new FakeTimeProvider(); + var handlerStarted = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var publishStarted = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var publishCanceled = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + + // Retry publishes ride the dedicated publish channel. + publishChannel.Setup(c => c.BasicPublishAsync( + string.Empty, + "q.Retries", + true, + It.IsAny(), + It.IsAny>(), + It.IsAny())) + .Returns, CancellationToken>((_, _, _, _, _, cancellationToken) => + { + publishStarted.TrySetResult(); + cancellationToken.Register(() => publishCanceled.TrySetResult()); + return new ValueTask(Task.Delay(Timeout.Infinite, cancellationToken)); + }); + + var host = new RabbitMqConsumerHost( + conn.Object, + MakeTransportCfg(prefetch: 10, autoDelete: false, disablePrefetch: false, gracefulShutdownTimeoutMs: 100).Object, + MakeQueueCfg().Object, + MakeBusCfg().Object, + new MessageRetryHandler(3, "err", "q", NullLogger.Instance), + new RabbitMqAdmissionGate("q"), + new MessageAuditPublisher(MakeQueueCfg().Object), + NullLogger.Instance, + timeProvider); + + await host.StartConsumingAsync( + (_, _, _, _) => + { + handlerStarted.SetResult(); + return Task.FromResult(new ConsumeEventResult + { + Success = false, + Exception = new InvalidOperationException("boom") + }); + }, + "q"); + + var deliveryTask = DeliverMessageAsync(host, new byte[1], new Dictionary { [HeaderKeys.TypeName] = "SomeType" }); + await handlerStarted.Task; + await publishStarted.Task; + + var disposeTask = host.DisposeAsync().AsTask(); + + timeProvider.Advance(TimeSpan.FromMilliseconds(100)); + + var canceled = await Task.WhenAny(publishCanceled.Task, Task.Delay(TimeSpan.FromSeconds(2))); + Assert.Same(publishCanceled.Task, canceled); + + var completed = await Task.WhenAny(deliveryTask, Task.Delay(TimeSpan.FromSeconds(2))); + Assert.Same(deliveryTask, completed); + + await deliveryTask; + await disposeTask; + + channel.Verify(c => c.BasicAckAsync(It.IsAny(), It.IsAny(), It.IsAny()), Times.Never); + channel.Verify(c => c.BasicNackAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny()), Times.Never); + } + + [Fact] + public async Task DisposeAsync_WhenAuditPublishStalls_CancelsPublishAtShutdownDeadline_AndLeavesMessageUnacked() + { + var (conn, channel, publishChannel) = MockConnection(); + var timeProvider = new FakeTimeProvider(); + var handlerStarted = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var publishStarted = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var publishCanceled = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var qcfg = MakeQueueCfg(); + qcfg.SetupGet(c => c.AuditingEnabled).Returns(true); + + // Audit publishes ride the dedicated publish channel. + publishChannel.Setup(c => c.BasicPublishAsync( + "audit", + string.Empty, + true, + It.IsAny(), + It.IsAny>(), + It.IsAny())) + .Returns, CancellationToken>((_, _, _, _, _, cancellationToken) => + { + publishStarted.TrySetResult(); + cancellationToken.Register(() => publishCanceled.TrySetResult()); + return new ValueTask(Task.Delay(Timeout.Infinite, cancellationToken)); + }); + + var host = new RabbitMqConsumerHost( + conn.Object, + MakeTransportCfg(prefetch: 10, autoDelete: false, disablePrefetch: false, gracefulShutdownTimeoutMs: 100).Object, + qcfg.Object, + MakeBusCfg().Object, + new MessageRetryHandler(3, "err", "q", NullLogger.Instance), + new RabbitMqAdmissionGate("q"), + new MessageAuditPublisher(qcfg.Object), + NullLogger.Instance, + timeProvider); + + await host.StartConsumingAsync( + (_, _, _, _) => + { + handlerStarted.SetResult(); + return Task.FromResult(new ConsumeEventResult { Success = true }); + }, + "q"); + + var deliveryTask = DeliverMessageAsync( + host, + new byte[1], + new Dictionary + { + [HeaderKeys.TypeName] = "SomeType", + [HeaderKeys.MessageType] = "SomeMessage" + }); + await handlerStarted.Task; + await publishStarted.Task; + + var disposeTask = host.DisposeAsync().AsTask(); + + timeProvider.Advance(TimeSpan.FromMilliseconds(100)); + + var canceled = await Task.WhenAny(publishCanceled.Task, Task.Delay(TimeSpan.FromSeconds(2))); + Assert.Same(publishCanceled.Task, canceled); + + var completed = await Task.WhenAny(deliveryTask, Task.Delay(TimeSpan.FromSeconds(2))); + Assert.Same(deliveryTask, completed); + + await deliveryTask; + await disposeTask; + + channel.Verify(c => c.BasicAckAsync(It.IsAny(), It.IsAny(), It.IsAny()), Times.Never); + channel.Verify(c => c.BasicNackAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny()), Times.Never); + } + + [Fact] + public async Task EventAsync_WhenAuditPublishThrows_MessageIsAcked_AndHandlerNotRedelivered() + { + // After the handler succeeds, an audit-publish failure must not fail delivery — + // audit is observability, not part of the business transaction. The original message + // must be ack'd and the handler must not run a second time. + var (conn, channel, publishChannel) = MockConnection(); + var qcfg = MakeQueueCfg(); + qcfg.SetupGet(c => c.AuditingEnabled).Returns(true); + + publishChannel.Setup(c => c.BasicPublishAsync( + "audit", + string.Empty, + true, + It.IsAny(), + It.IsAny>(), + It.IsAny())) + .ThrowsAsync(new InvalidOperationException("simulated audit publish failure")); + + var handlerInvocations = 0; + var host = new RabbitMqConsumerHost( + conn.Object, + MakeTransportCfg().Object, + qcfg.Object, + MakeBusCfg().Object, + new MessageRetryHandler(3, "err", "q", NullLogger.Instance), + new RabbitMqAdmissionGate("q"), + new MessageAuditPublisher(qcfg.Object), + NullLogger.Instance); + + await host.StartConsumingAsync( + (_, _, _, _) => + { + Interlocked.Increment(ref handlerInvocations); + return Task.FromResult(new ConsumeEventResult { Success = true }); + }, + "q"); + + await DeliverMessageAsync( + host, + new byte[1], + new Dictionary + { + [HeaderKeys.TypeName] = "SomeType", + [HeaderKeys.MessageType] = "SomeMessage" + }); + + Assert.Equal(1, handlerInvocations); + channel.Verify(c => c.BasicAckAsync(It.IsAny(), false, It.IsAny()), Times.Once); + channel.Verify(c => c.BasicNackAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny()), Times.Never); + } + + // Inbound message-size enforcement. + + private static Mock MakeTransportCfgWithMaxSize(long maxSize) + { + var cfg = new Mock(); + cfg.SetupGet(c => c.MaxRetries).Returns(3); + cfg.SetupGet(c => c.PrefetchCount).Returns((ushort)10); + var settings = new Dictionary + { + [RabbitMQSettingKeys.MessageSize] = maxSize, + }; + cfg.SetupGet(c => c.ClientSettings).Returns(settings); + return cfg; + } + + /// + /// Delivers a synthetic message via the consumer's HandleBasicDeliverAsync. + /// Returns true if the consumer event handler was invoked. + /// + private static async Task DeliverMessageAsync( + RabbitMqConsumerHost host, + byte[] body, + Dictionary? headers = null) + { + // Retrieve the private _consumer field via reflection. + var consumerField = typeof(RabbitMqConsumerHost) + .GetField("_consumer", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance); + if (consumerField?.GetValue(host) is not global::RabbitMQ.Client.Events.AsyncEventingBasicConsumer consumer) + { + throw new InvalidOperationException("_consumer field not found or host not started."); + } + + return await DeliverMessageOnConsumerAsync(consumer, body, headers).ConfigureAwait(false); + } + + /// + /// Drives a synthetic message via a directly-captured AsyncEventingBasicConsumer reference. + /// Used by tests that drive a late delivery against a consumer whose host is mid-dispose — + /// reading the host's _consumer field via reflection at that point is timing-sensitive under + /// parallel test load because the dispose path may have already nulled the field. + /// + private static async Task DeliverMessageOnConsumerAsync( + global::RabbitMQ.Client.Events.AsyncEventingBasicConsumer consumer, + byte[] body, + Dictionary? headers = null) + { + var props = new global::RabbitMQ.Client.BasicProperties(); + if (headers != null) + { + foreach (var kvp in headers) + { + (props.Headers ??= new Dictionary())[kvp.Key] = kvp.Value; + } + } + + await consumer.HandleBasicDeliverAsync( + consumerTag: "tag", + deliveryTag: 1, + redelivered: false, + exchange: "", + routingKey: "q", + properties: props, + body: body, + cancellationToken: default); + + return true; + } + + [Fact] + public async Task EventAsync_OversizedMessage_IsNacked_AndHandlerNotInvoked() + { + const long maxSize = 100L; + var (conn, channel, publishChannel) = MockConnection(); + var tcfg = MakeTransportCfgWithMaxSize(maxSize); + var qcfg = MakeQueueCfg(); + var retry = new MessageRetryHandler(3, "err", "q", NullLogger.Instance); + var audit = new MessageAuditPublisher(qcfg.Object); + + bool handlerInvoked = false; + var host = new RabbitMqConsumerHost(conn.Object, tcfg.Object, qcfg.Object, MakeBusCfg().Object, retry, new RabbitMqAdmissionGate("q"), audit, NullLogger.Instance); + await host.StartConsumingAsync( + (_, _, _, _) => { handlerInvoked = true; return Task.FromResult(new ConsumeEventResult { Success = true }); }, + "q"); + + var oversized = new byte[maxSize + 1]; + var msgHeaders = new Dictionary { [HeaderKeys.TypeName] = "SomeType" }; + await DeliverMessageAsync(host, oversized, msgHeaders); + + Assert.False(handlerInvoked, "Consumer event handler must not be called for oversized messages."); + // Error-exchange publishes flow through the dedicated publish channel. + publishChannel.Verify(c => c.BasicPublishAsync( + "err", string.Empty, true, + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Once); + channel.Verify(c => c.BasicAckAsync(It.IsAny(), false, It.IsAny()), Times.Once); + channel.Verify(c => c.BasicNackAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny()), Times.Never); + } + + [Fact] + public async Task EventAsync_ExactLimitMessage_IsProcessed() + { + const long maxSize = 100L; + var (conn, channel, _) = MockConnection(); + var tcfg = MakeTransportCfgWithMaxSize(maxSize); + var qcfg = MakeQueueCfg(); + var retry = new MessageRetryHandler(3, "err", "q", NullLogger.Instance); + var audit = new MessageAuditPublisher(qcfg.Object); + + bool handlerInvoked = false; + var host = new RabbitMqConsumerHost(conn.Object, tcfg.Object, qcfg.Object, MakeBusCfg().Object, retry, new RabbitMqAdmissionGate("q"), audit, NullLogger.Instance); + await host.StartConsumingAsync( + (_, _, _, _) => { handlerInvoked = true; return Task.FromResult(new ConsumeEventResult { Success = true }); }, + "q"); + + var exactSize = new byte[maxSize]; + var msgHeaders = new Dictionary { [HeaderKeys.TypeName] = "SomeType" }; + await DeliverMessageAsync(host, exactSize, msgHeaders); + + Assert.True(handlerInvoked, "Consumer event handler must be called for messages within the limit."); + channel.Verify(c => c.BasicAckAsync(It.IsAny(), It.IsAny(), It.IsAny()), Times.Once); + } + + // Inbound header count and value size limits. + + [Fact] + public async Task EventAsync_ExcessiveHeaderCount_IsNacked_AndHandlerNotInvoked() + { + var (conn, channel, publishChannel) = MockConnection(); + var tcfg = MakeTransportCfg(); + var qcfg = MakeQueueCfg(); + var retry = new MessageRetryHandler(3, "err", "q", NullLogger.Instance); + var audit = new MessageAuditPublisher(qcfg.Object); + + bool handlerInvoked = false; + var host = new RabbitMqConsumerHost(conn.Object, tcfg.Object, qcfg.Object, MakeBusCfg().Object, retry, new RabbitMqAdmissionGate("q"), audit, NullLogger.Instance); + await host.StartConsumingAsync( + (_, _, _, _) => { handlerInvoked = true; return Task.FromResult(new ConsumeEventResult { Success = true }); }, + "q"); + + // Build a headers dict with more than DefaultMaxHeaderCount (64) entries. + var tooManyHeaders = new Dictionary { [HeaderKeys.TypeName] = "SomeType" }; + for (int i = 0; i < 65; i++) + { + tooManyHeaders[$"X-Excess-{i}"] = "v"; + } + + await DeliverMessageAsync(host, new byte[1], tooManyHeaders); + + Assert.False(handlerInvoked, "Handler must not be invoked when header count exceeds limit."); + publishChannel.Verify(c => c.BasicPublishAsync( + "err", string.Empty, true, + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Once); + channel.Verify(c => c.BasicAckAsync(It.IsAny(), false, It.IsAny()), Times.Once); + channel.Verify(c => c.BasicNackAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny()), Times.Never); + } + + [Fact] + public async Task EventAsync_OversizedHeaderValue_IsNacked_AndHandlerNotInvoked() + { + var (conn, channel, publishChannel) = MockConnection(); + var tcfg = MakeTransportCfg(); + var qcfg = MakeQueueCfg(); + var retry = new MessageRetryHandler(3, "err", "q", NullLogger.Instance); + var audit = new MessageAuditPublisher(qcfg.Object); + + bool handlerInvoked = false; + var host = new RabbitMqConsumerHost(conn.Object, tcfg.Object, qcfg.Object, MakeBusCfg().Object, retry, new RabbitMqAdmissionGate("q"), audit, NullLogger.Instance); + await host.StartConsumingAsync( + (_, _, _, _) => { handlerInvoked = true; return Task.FromResult(new ConsumeEventResult { Success = true }); }, + "q"); + + // Single header with a byte[] value exceeding DefaultMaxHeaderValueBytes (8192). + var bigValueHeaders = new Dictionary + { + [HeaderKeys.TypeName] = "SomeType", + ["X-Big-Value"] = new byte[8193], + }; + + await DeliverMessageAsync(host, new byte[1], bigValueHeaders); + + Assert.False(handlerInvoked, "Handler must not be invoked when a header value exceeds size limit."); + publishChannel.Verify(c => c.BasicPublishAsync( + "err", string.Empty, true, + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Once); + channel.Verify(c => c.BasicAckAsync(It.IsAny(), false, It.IsAny()), Times.Once); + channel.Verify(c => c.BasicNackAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny()), Times.Never); + } + + [Fact] + public async Task EventAsync_MissingTypeHeaders_PublishesToErrorExchange_Acks_AndHandlerNotInvoked() + { + var (conn, channel, publishChannel) = MockConnection(); + var host = new RabbitMqConsumerHost( + conn.Object, + MakeTransportCfg().Object, + MakeQueueCfg().Object, + MakeBusCfg().Object, + new MessageRetryHandler(3, "err", "q", NullLogger.Instance), + new RabbitMqAdmissionGate("q"), + new MessageAuditPublisher(MakeQueueCfg().Object), + NullLogger.Instance); + + bool handlerInvoked = false; + await host.StartConsumingAsync( + (_, _, _, _) => + { + handlerInvoked = true; + return Task.FromResult(new ConsumeEventResult { Success = true }); + }, + "q"); + + await DeliverMessageAsync(host, [1, 2, 3], headers: null); + + Assert.False(handlerInvoked); + publishChannel.Verify(c => c.BasicPublishAsync( + "err", string.Empty, true, + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Once); + channel.Verify(c => c.BasicAckAsync(It.IsAny(), false, It.IsAny()), Times.Once); + } + + [Fact] + public async Task EventAsync_InvalidMessage_WhenErrorPublishFails_IsNackedForRedelivery() + { + var (conn, channel, publishChannel) = MockConnection(); + // Error publish now rides the publish channel. Make the publish-channel + // publish fail — consumer-channel publish is still a no-op success stub. + publishChannel.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .ThrowsAsync(new InvalidOperationException("broker unavailable")); + + var qcfg = MakeQueueCfg(); + var host = new RabbitMqConsumerHost( + conn.Object, + MakeTransportCfgWithMaxSize(10).Object, + qcfg.Object, + MakeBusCfg().Object, + new MessageRetryHandler(3, "err", "q", NullLogger.Instance), + new RabbitMqAdmissionGate("q"), + new MessageAuditPublisher(qcfg.Object), + NullLogger.Instance); + + await host.StartConsumingAsync((_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }), "q"); + await DeliverMessageAsync(host, new byte[11], new Dictionary { [HeaderKeys.TypeName] = "SomeType" }); + + channel.Verify(c => c.BasicAckAsync(It.IsAny(), It.IsAny(), It.IsAny()), Times.Never); + channel.Verify(c => c.BasicNackAsync(It.IsAny(), false, true, It.IsAny()), Times.Once); + } + + [Fact] + public async Task EventAsync_NotHandled_WithDeadLetterDisabled_DoesNotRouteToErrorExchange() + { + // Default behaviour: a handler-less message is acked as Success so the broker + // stops redelivering, and no terminal-failure publish is made. Audit still fires + // when enabled — this test locks in that historical behaviour. + var (conn, channel, publishChannel) = MockConnection(); + var qcfg = MakeQueueCfg(); + qcfg.SetupGet(c => c.AuditingEnabled).Returns(true); + var busCfg = MakeBusCfg(); + busCfg.SetupGet(c => c.DeadLetterUnhandledMessages).Returns(false); + + var host = new RabbitMqConsumerHost( + conn.Object, + MakeTransportCfg().Object, + qcfg.Object, + busCfg.Object, + new MessageRetryHandler(3, "err", "q", NullLogger.Instance), + new RabbitMqAdmissionGate("q"), + new MessageAuditPublisher(qcfg.Object), + NullLogger.Instance); + + await host.StartConsumingAsync( + (_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true, NotHandled = true }), + "q"); + + await DeliverMessageAsync(host, new byte[1], new Dictionary { [HeaderKeys.TypeName] = "SomeType" }); + + publishChannel.Verify(c => c.BasicPublishAsync( + "err", string.Empty, true, + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Never); + // Audit publish still runs — backward-compat invariant. + publishChannel.Verify(c => c.BasicPublishAsync( + "audit", string.Empty, true, + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Once); + channel.Verify(c => c.BasicAckAsync(It.IsAny(), false, It.IsAny()), Times.Once); + channel.Verify(c => c.BasicNackAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny()), Times.Never); + } + + [Fact] + public async Task EventAsync_NotHandled_WithDeadLetterEnabled_RoutesToErrorExchange() + { + var (conn, channel, publishChannel) = MockConnection(); + var qcfg = MakeQueueCfg(); + var busCfg = MakeBusCfg(); + busCfg.SetupGet(c => c.DeadLetterUnhandledMessages).Returns(true); + + var host = new RabbitMqConsumerHost( + conn.Object, + MakeTransportCfg().Object, + qcfg.Object, + busCfg.Object, + new MessageRetryHandler(3, "err", "q", NullLogger.Instance), + new RabbitMqAdmissionGate("q"), + new MessageAuditPublisher(qcfg.Object), + NullLogger.Instance); + + await host.StartConsumingAsync( + (_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true, NotHandled = true }), + "q"); + + await DeliverMessageAsync(host, new byte[1], new Dictionary { [HeaderKeys.TypeName] = "SomeType" }); + + // Terminal-failure publishes flow through the dedicated publish channel to + // the error exchange — no retry queue involvement. + publishChannel.Verify(c => c.BasicPublishAsync( + "err", string.Empty, true, + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Once); + // The original delivery is acked once its terminal publish is confirmed. + channel.Verify(c => c.BasicAckAsync(It.IsAny(), false, It.IsAny()), Times.Once); + channel.Verify(c => c.BasicNackAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny()), Times.Never); + } + + [Fact] + public async Task EventAsync_NotHandled_WithErrorsDisabled_DoesNotRouteToErrorExchange() + { + // DisableErrors short-circuits the error exchange regardless of + // DeadLetterUnhandledMessages — terminal routing must respect it. + var (conn, channel, publishChannel) = MockConnection(); + var qcfg = MakeQueueCfg(); + qcfg.SetupGet(c => c.DisableErrors).Returns(true); + var busCfg = MakeBusCfg(); + busCfg.SetupGet(c => c.DeadLetterUnhandledMessages).Returns(true); + + var host = new RabbitMqConsumerHost( + conn.Object, + MakeTransportCfg().Object, + qcfg.Object, + busCfg.Object, + new MessageRetryHandler(3, "err", "q", NullLogger.Instance), + new RabbitMqAdmissionGate("q"), + new MessageAuditPublisher(qcfg.Object), + NullLogger.Instance); + + await host.StartConsumingAsync( + (_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true, NotHandled = true }), + "q"); + + await DeliverMessageAsync(host, new byte[1], new Dictionary { [HeaderKeys.TypeName] = "SomeType" }); + + publishChannel.Verify(c => c.BasicPublishAsync( + "err", string.Empty, true, + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Never); + channel.Verify(c => c.BasicAckAsync(It.IsAny(), false, It.IsAny()), Times.Once); + } + + // --- null-valued TypeName header: rejected at admission rather than crashing dispatch --- + + [Fact] + public async Task EventAsync_NullValuedTypeNameHeader_RejectsAtAdmission_WithoutBurningRetryBudget() + { + // Admission must reject a TypeName/FullTypeName key whose value is null using + // TryGetValue + non-null rather than ContainsKey. ContainsKey would admit the + // message; CopyInboundHeaders then skips the null value and the dispatch-site + // indexer throws KeyNotFoundException, burning a retry cycle on what should + // have been a terminal admission rejection. + var (conn, channel, publishChannel) = MockConnection(); + var host = new RabbitMqConsumerHost( + conn.Object, + MakeTransportCfg().Object, + MakeQueueCfg().Object, + MakeBusCfg().Object, + new MessageRetryHandler(3, "err", "q", NullLogger.Instance), + new RabbitMqAdmissionGate("q"), + new MessageAuditPublisher(MakeQueueCfg().Object), + NullLogger.Instance); + + bool handlerInvoked = false; + await host.StartConsumingAsync( + (_, _, _, _) => + { + handlerInvoked = true; + return Task.FromResult(new ConsumeEventResult { Success = true }); + }, + "q"); + + // TypeName key is present but value is null — simulates non-.NET client omitting the value. + await DeliverMessageAsync(host, [1, 2, 3], + new Dictionary { [HeaderKeys.TypeName] = null! }); + + Assert.False(handlerInvoked, "Handler must not be invoked when TypeName value is null."); + // Must route to error (terminal rejection), NOT to retry queue. + publishChannel.Verify(c => c.BasicPublishAsync( + "err", string.Empty, true, + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Once); + publishChannel.Verify(c => c.BasicPublishAsync( + string.Empty, "q.Retries", true, + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Never); + channel.Verify(c => c.BasicAckAsync(It.IsAny(), false, It.IsAny()), Times.Once); + } + + [Fact] + public async Task EventAsync_NullValuedFullTypeNameHeader_AlsoRejectsAtAdmission() + { + // FullTypeName follows the same admission rule as TypeName. + var (conn, channel, publishChannel) = MockConnection(); + var host = new RabbitMqConsumerHost( + conn.Object, + MakeTransportCfg().Object, + MakeQueueCfg().Object, + MakeBusCfg().Object, + new MessageRetryHandler(3, "err", "q", NullLogger.Instance), + new RabbitMqAdmissionGate("q"), + new MessageAuditPublisher(MakeQueueCfg().Object), + NullLogger.Instance); + + bool handlerInvoked = false; + await host.StartConsumingAsync( + (_, _, _, _) => + { + handlerInvoked = true; + return Task.FromResult(new ConsumeEventResult { Success = true }); + }, + "q"); + + await DeliverMessageAsync(host, [1, 2, 3], + new Dictionary { [HeaderKeys.FullTypeName] = null! }); + + Assert.False(handlerInvoked, "Handler must not be invoked when FullTypeName value is null."); + publishChannel.Verify(c => c.BasicPublishAsync( + "err", string.Empty, true, + It.IsAny(), It.IsAny>(), + It.IsAny()), Times.Once); + channel.Verify(c => c.BasicAckAsync(It.IsAny(), false, It.IsAny()), Times.Once); + } + + // --- broker-initiated shutdown event subscriptions --- + + [Fact] + public async Task StartConsumingAsync_ConsumerShutdownAsync_IsSubscribed_AndLogsWarning() + { + // ShutdownAsync on the consumer must be subscribed so a broker-initiated shutdown + // is observable. Fire HandleChannelShutdownAsync (which raises ShutdownAsync) and + // assert the host logs a Warning containing "shutdown". + var (conn, _, _) = MockConnection(); + var tcfg = MakeTransportCfg(); + var qcfg = MakeQueueCfg(); + var logMessages = new System.Collections.Concurrent.ConcurrentBag<(Microsoft.Extensions.Logging.LogLevel Level, string Message)>(); + var testLogger = new CapturingLogger(logMessages); + var retry = new MessageRetryHandler(3, "err", "q", testLogger); + var audit = new MessageAuditPublisher(qcfg.Object); + + var host = new RabbitMqConsumerHost(conn.Object, tcfg.Object, qcfg.Object, MakeBusCfg().Object, retry, new RabbitMqAdmissionGate("q"), audit, testLogger); + await host.StartConsumingAsync((_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }), "q"); + + // Retrieve the private _consumer via reflection and fire HandleChannelShutdownAsync. + var consumerField = typeof(RabbitMqConsumerHost) + .GetField("_consumer", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance); + var consumer = consumerField?.GetValue(host) as global::RabbitMQ.Client.Events.AsyncEventingBasicConsumer; + Assert.NotNull(consumer); + + var shutdownArgs = new global::RabbitMQ.Client.Events.ShutdownEventArgs( + global::RabbitMQ.Client.ShutdownInitiator.Peer, 320, "Queue deleted by broker"); + await consumer.HandleChannelShutdownAsync(consumer, shutdownArgs); + + // The handler must have logged a Warning containing "shutdown". + var shutdownLog = logMessages.FirstOrDefault(m => + m.Level >= Microsoft.Extensions.Logging.LogLevel.Warning + && m.Message.Contains("shutdown", StringComparison.OrdinalIgnoreCase)); + + Assert.False(shutdownLog == default, + "Expected a Warning-level log mentioning 'shutdown' after consumer ShutdownAsync fired. " + + "Absence of the log indicates ShutdownAsync was never wired up."); + } + + [Fact] + public async Task StartConsumingAsync_ConsumerUnregisteredAsync_IsSubscribed_AndLogsWarning() + { + // UnregisteredAsync on the consumer must be subscribed. This event fires on + // broker-initiated basic.cancel (e.g. queue deleted while consuming). Fire it via + // HandleBasicCancelAsync and verify the Warning is logged. + var (conn, _, _) = MockConnection(); + var tcfg = MakeTransportCfg(); + var qcfg = MakeQueueCfg(); + var shutdownObserved = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var logMessages = new System.Collections.Concurrent.ConcurrentBag<(Microsoft.Extensions.Logging.LogLevel Level, string Message)>(); + var testLogger = new CapturingLogger(logMessages, (level, message) => + { + if (level >= Microsoft.Extensions.Logging.LogLevel.Warning + && message.Contains("shutdown", StringComparison.OrdinalIgnoreCase)) + { + shutdownObserved.TrySetResult(true); + } + }); + var retry = new MessageRetryHandler(3, "err", "q", testLogger); + var audit = new MessageAuditPublisher(qcfg.Object); + + var host = new RabbitMqConsumerHost(conn.Object, tcfg.Object, qcfg.Object, MakeBusCfg().Object, retry, new RabbitMqAdmissionGate("q"), audit, testLogger); + await host.StartConsumingAsync((_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }), "q"); + + var consumerField = typeof(RabbitMqConsumerHost) + .GetField("_consumer", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance); + var consumer = consumerField?.GetValue(host) as global::RabbitMQ.Client.Events.AsyncEventingBasicConsumer; + Assert.NotNull(consumer); + + // HandleBasicCancelAsync triggers UnregisteredAsync (broker-initiated cancel). + await consumer.HandleBasicCancelAsync("tag"); + + await shutdownObserved.Task.WaitAsync(TimeSpan.FromSeconds(1)); + + var unregisteredLog = logMessages.FirstOrDefault(m => + m.Level >= Microsoft.Extensions.Logging.LogLevel.Warning + && m.Message.Contains("shutdown", StringComparison.OrdinalIgnoreCase)); + + Assert.False(unregisteredLog == default, + "Expected a Warning-level log mentioning 'shutdown' after consumer UnregisteredAsync fired. " + + "UnregisteredAsync event is not subscribed."); + } + + [Fact] + public async Task StartConsumingAsync_ChannelShutdownAsync_IsSubscribed_AndLogsWarning() + { + // IChannel.ChannelShutdownAsync must also be subscribed. + // We set up the channel mock to raise the event and verify the logger received a warning. + var (conn, consumerChannel, _) = MockConnection(); + var tcfg = MakeTransportCfg(); + var qcfg = MakeQueueCfg(); + var shutdownObserved = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var logMessages = new System.Collections.Concurrent.ConcurrentBag<(Microsoft.Extensions.Logging.LogLevel Level, string Message)>(); + var testLogger = new CapturingLogger(logMessages, (level, message) => + { + if (level >= Microsoft.Extensions.Logging.LogLevel.Warning + && message.Contains("shutdown", StringComparison.OrdinalIgnoreCase)) + { + shutdownObserved.TrySetResult(true); + } + }); + var retry = new MessageRetryHandler(3, "err", "q", testLogger); + var audit = new MessageAuditPublisher(qcfg.Object); + + var host = new RabbitMqConsumerHost(conn.Object, tcfg.Object, qcfg.Object, MakeBusCfg().Object, retry, new RabbitMqAdmissionGate("q"), audit, testLogger); + await host.StartConsumingAsync((_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }), "q"); + + // Raise the ChannelShutdownAsync event on the consumer channel mock. + var shutdownArgs = new global::RabbitMQ.Client.Events.ShutdownEventArgs( + global::RabbitMQ.Client.ShutdownInitiator.Peer, 320, "Channel closed by broker"); + consumerChannel.Raise(c => c.ChannelShutdownAsync += null, consumerChannel.Object, shutdownArgs); + + await shutdownObserved.Task.WaitAsync(TimeSpan.FromSeconds(1)); + + var channelShutdownLog = logMessages.FirstOrDefault(m => + m.Level >= Microsoft.Extensions.Logging.LogLevel.Warning + && m.Message.Contains("shutdown", StringComparison.OrdinalIgnoreCase)); + + Assert.False(channelShutdownLog == default, + "Expected a Warning-level log mentioning 'shutdown' after ChannelShutdownAsync fired. " + + "ChannelShutdownAsync event is not subscribed."); + } + + [Fact] + public async Task DisposeAsync_DisposesFieldInitialisedCtsInstances() + { + // The host is single-use (PrepareAsync may be called at most once); the field- + // initialised CTS instances are owned by the host for that single lifecycle and + // must be disposed in DisposeAsync. This test asserts the lifecycle invariant + // without relying on the prior CTS-rotation-on-restart behaviour, which was + // removed when the host became single-use. + var (conn, _, _) = MockConnection(); + var tcfg = MakeTransportCfg(); + var qcfg = MakeQueueCfg(); + var retry = new MessageRetryHandler(3, "err", "q", NullLogger.Instance); + var audit = new MessageAuditPublisher(qcfg.Object); + var host = new RabbitMqConsumerHost(conn.Object, tcfg.Object, qcfg.Object, MakeBusCfg().Object, retry, new RabbitMqAdmissionGate("q"), audit, NullLogger.Instance); + + var deliveryCtsField = typeof(RabbitMqConsumerHost) + .GetField("_deliveryCts", BindingFlags.NonPublic | BindingFlags.Instance)!; + var shutdownCtsField = typeof(RabbitMqConsumerHost) + .GetField("_shutdownPublishCts", BindingFlags.NonPublic | BindingFlags.Instance)!; + var initialDeliveryCts = (CancellationTokenSource)deliveryCtsField.GetValue(host)!; + var initialShutdownCts = (CancellationTokenSource)shutdownCtsField.GetValue(host)!; + + await host.StartConsumingAsync((_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }), "test-queue"); + await host.DisposeAsync(); + + Assert.Throws(initialDeliveryCts.Cancel); + Assert.Throws(initialShutdownCts.Cancel); + } + + /// + /// Minimal ILogger that captures log messages for assertion. + /// Optionally accepts an callback invoked after each log entry + /// (useful for TCS-based synchronisation without introducing Task.Delay races). + /// + private sealed class CapturingLogger( + System.Collections.Concurrent.ConcurrentBag<(Microsoft.Extensions.Logging.LogLevel Level, string Message)> bag, + Action? onLog = null) : Microsoft.Extensions.Logging.ILogger + { + public IDisposable? BeginScope(TState state) where TState : notnull => null; + public bool IsEnabled(Microsoft.Extensions.Logging.LogLevel logLevel) => true; + public void Log(Microsoft.Extensions.Logging.LogLevel logLevel, Microsoft.Extensions.Logging.EventId eventId, TState state, Exception? exception, Func formatter) + { + var message = formatter(state, exception); + bag.Add((logLevel, message)); + onLog?.Invoke(logLevel, message); + } + } + + // ----------------------------------------------------------------------- + // Accept any IDictionary/IReadOnlyDictionary for queue Arguments + // ----------------------------------------------------------------------- + + [Fact] + public void Ctor_ArgumentsAsReadOnlyDictionary_DoesNotThrow() + { + // RabbitMqConsumerHost's Arguments consumption must accept any + // IDictionary/IReadOnlyDictionary shape; a direct cast to IDictionary<,> would + // fail on ReadOnlyDictionary, which implements IReadOnlyDictionary but not IDictionary. + var inner = new Dictionary { ["x-max-length"] = 1000 }; + var readOnly = new System.Collections.ObjectModel.ReadOnlyDictionary(inner); + + var (conn, _, _) = MockConnection(); + var tcfg = new Mock(); + tcfg.SetupGet(c => c.MaxRetries).Returns(3); + tcfg.SetupGet(c => c.PrefetchCount).Returns((ushort)10); + tcfg.SetupProperty(c => c.GracefulShutdownTimeoutMilliseconds, 5000); + tcfg.SetupGet(c => c.ClientSettings).Returns(new Dictionary + { + [RabbitMQSettingKeys.Arguments] = readOnly, + }); + + var qcfg = MakeQueueCfg(); + var retry = new MessageRetryHandler(3, "err", "q", NullLogger.Instance); + var audit = new MessageAuditPublisher(qcfg.Object); + + var ex = Record.Exception(() => new RabbitMqConsumerHost( + conn.Object, tcfg.Object, qcfg.Object, MakeBusCfg().Object, retry, new RabbitMqAdmissionGate("q"), audit, NullLogger.Instance)); + Assert.Null(ex); + } + + [Fact] + public async Task StartConsumingAsync_BasicConsumeAsync_FlowsCancellationToken() + { + // BasicConsumeAsync must receive the caller's CancellationToken so that a + // broker-side hang during consumer registration can be cancelled by the caller. + using var cts = new CancellationTokenSource(); + var capturedToken = default(CancellationToken); + + var consumerChannel = CreateMockChannel(); + consumerChannel.Setup(c => c.BasicConsumeAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny(), + It.IsAny?>(), + It.IsAny(), It.IsAny())) + .Callback?, IAsyncBasicConsumer, CancellationToken>( + (_, _, _, _, _, _, _, ct) => capturedToken = ct) + .ReturnsAsync("tag"); + + var publishChannel = CreateMockChannel(); + var conn = new Mock(); + conn.Setup(c => c.CreateChannelAsync(It.IsAny())).ReturnsAsync(consumerChannel.Object); + conn.Setup(c => c.CreateChannelAsync(It.IsAny(), It.IsAny())).ReturnsAsync(publishChannel.Object); + + var tcfg = MakeTransportCfg(); + var qcfg = MakeQueueCfg(); + var retry = new MessageRetryHandler(3, "err", "q", NullLogger.Instance); + var audit = new MessageAuditPublisher(qcfg.Object); + + var host = new RabbitMqConsumerHost(conn.Object, tcfg.Object, qcfg.Object, MakeBusCfg().Object, retry, new RabbitMqAdmissionGate("q"), audit, NullLogger.Instance); + + await host.StartConsumingAsync( + (_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true }), + "q", + cancellationToken: cts.Token); + + Assert.Equal(cts.Token, capturedToken); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqDispatchPipelineTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqDispatchPipelineTests.cs new file mode 100644 index 000000000..eb2476438 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqDispatchPipelineTests.cs @@ -0,0 +1,394 @@ +using Microsoft.Extensions.Logging; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Diagnostics; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.UnitTests.Diagnostics; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Drives directly, asserting: +/// +/// Handler outcome → ack/nack frame mapping (success → ack, retry → nack-with-requeue, throw → nack-with-requeue). +/// messaging.process.* metric tags (outcome=success/error/retry, error.type for error). +/// Channel-state guards (null channel, closed channel, shutdown-timed-out) suppress ack/nack and log at Debug. +/// AlreadyClosed / ObjectDisposed during shutdown demote to Debug; outside shutdown route via LogAckOrNackFailure. +/// The host-side rejection paths (validator-rejected → AckOrNackAsync(processed=true); +/// null-processor → AckOrNackAsync(processed=false)) drive the right frame. +/// +/// Mirrors ConsumerProcessMetricsTests for the metric assertions and the test harness pattern. +/// +public sealed class RabbitMqDispatchPipelineTests +{ + [Fact] + public async Task DispatchAndAckAsync_HandlerSuccess_AcksAndEmitsSuccessOutcome() + { + var queueName = $"q-pipe-success-{Guid.NewGuid():N}"; + using var collector = new MetricCollector("messaging.destination.name", queueName); + + var consumerChannel = BuildConsumerChannel(isOpen: true); + var publishChannel = BuildPublishChannel(); + var processor = BuildProcessor(queueName, (_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = true })); + var pipeline = new RabbitMqDispatchPipeline( + queueName, + shutdownTimedOutQuery: () => false, + shutdownStartedQuery: () => false, + NullLogger.Instance); + + var args = MakeArgs(deliveryTag: 11); + await pipeline.DispatchAndAckAsync(processor, consumerChannel.Object, publishChannel.Object, args, new Dictionary(StringComparer.Ordinal), CancellationToken.None); + + consumerChannel.Verify(c => c.BasicAckAsync(11UL, false, It.IsAny()), Times.Once); + consumerChannel.Verify(c => c.BasicNackAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny()), Times.Never); + + var duration = Assert.Single(collector.GetDoubleRecords(MetricNames.ProcessDuration)); + Assert.Equal(queueName, duration.GetTag("messaging.destination.name")); + Assert.Null(duration.GetTag("error.type")); + + var consumed = Assert.Single(collector.GetLongRecords(MetricNames.ConsumedMessages)); + Assert.Equal("success", consumed.GetTag("messaging.outcome")); + Assert.Null(consumed.GetTag("error.type")); + } + + [Fact] + public async Task DispatchAndAckAsync_HandlerRetry_NacksWithRequeueAndEmitsRetryOutcome() + { + // Handler returns Success=false but does NOT throw. The pipeline's processor is + // configured so the publish-retry path succeeds — that lets us hit the case where + // ProcessAsync returns false (processed=false) without an exception, which maps to + // outcome=retry. The dispatch then nacks-with-requeue against the model channel. + var queueName = $"q-pipe-retry-{Guid.NewGuid():N}"; + using var collector = new MetricCollector("messaging.destination.name", queueName); + + var consumerChannel = BuildConsumerChannel(isOpen: true); + var publishChannel = BuildPublishChannel(); + // shutdownTimedOut=true so the InboundMessageProcessor's shutdown-aware retry path + // returns false without publishing or throwing — that's the documented retry outcome. + var processor = BuildProcessor(queueName, + (_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = false, Exception = new InvalidOperationException("h") }), + shutdownTimedOut: true); + var pipeline = new RabbitMqDispatchPipeline( + queueName, + shutdownTimedOutQuery: () => false, // false here so dispatch's ack/nack happens + shutdownStartedQuery: () => false, + NullLogger.Instance); + + var args = MakeArgs(deliveryTag: 12); + await pipeline.DispatchAndAckAsync(processor, consumerChannel.Object, publishChannel.Object, args, new Dictionary(StringComparer.Ordinal), CancellationToken.None); + + consumerChannel.Verify(c => c.BasicAckAsync(It.IsAny(), It.IsAny(), It.IsAny()), Times.Never); + consumerChannel.Verify(c => c.BasicNackAsync(12UL, false, true, It.IsAny()), Times.Once); + + var consumed = Assert.Single(collector.GetLongRecords(MetricNames.ConsumedMessages)); + Assert.Equal("retry", consumed.GetTag("messaging.outcome")); + Assert.Null(consumed.GetTag("error.type")); + } + + [Fact] + public async Task DispatchAndAckAsync_HandlerThrows_NacksWithRequeueAndEmitsErrorOutcome() + { + var queueName = $"q-pipe-error-{Guid.NewGuid():N}"; + using var collector = new MetricCollector("messaging.destination.name", queueName); + + var consumerChannel = BuildConsumerChannel(isOpen: true); + var publishChannel = BuildPublishChannel(retryPublishThrows: true); + // Handler returns Success=false; with retry-publish throwing AlreadyClosedException + // (on InboundMessageProcessor's rethrow list), ProcessAsync re-raises and the pipeline + // catches → outcome=error. processed stays false → dispatch nacks-with-requeue. + var processor = BuildProcessor(queueName, + (_, _, _, _) => Task.FromResult(new ConsumeEventResult { Success = false, Exception = new InvalidOperationException("h") })); + var pipeline = new RabbitMqDispatchPipeline( + queueName, + shutdownTimedOutQuery: () => false, + shutdownStartedQuery: () => false, + NullLogger.Instance); + + var args = MakeArgs(deliveryTag: 13); + await pipeline.DispatchAndAckAsync(processor, consumerChannel.Object, publishChannel.Object, args, new Dictionary(StringComparer.Ordinal), CancellationToken.None); + + consumerChannel.Verify(c => c.BasicNackAsync(13UL, false, true, It.IsAny()), Times.Once); + + var duration = Assert.Single(collector.GetDoubleRecords(MetricNames.ProcessDuration)); + Assert.NotNull(duration.GetTag("error.type")); + var consumed = Assert.Single(collector.GetLongRecords(MetricNames.ConsumedMessages)); + Assert.Equal("error", consumed.GetTag("messaging.outcome")); + Assert.NotNull(consumed.GetTag("error.type")); + } + + [Fact] + public async Task AckOrNackAsync_DirectAck_AcksWithoutEmittingMetrics() + { + // Mirrors the validator-rejection path: we already know the outcome (ack-and-don't-redeliver) + // and there's no handler dispatch, so no messaging.process.* emission should happen. + var queueName = $"q-pipe-direct-ack-{Guid.NewGuid():N}"; + using var collector = new MetricCollector("messaging.destination.name", queueName); + + var consumerChannel = BuildConsumerChannel(isOpen: true); + var pipeline = new RabbitMqDispatchPipeline( + queueName, () => false, () => false, NullLogger.Instance); + + var args = MakeArgs(deliveryTag: 21); + await pipeline.AckOrNackAsync(consumerChannel.Object, args, processed: true); + + consumerChannel.Verify(c => c.BasicAckAsync(21UL, false, It.IsAny()), Times.Once); + consumerChannel.Verify(c => c.BasicNackAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny()), Times.Never); + Assert.Empty(collector.GetDoubleRecords(MetricNames.ProcessDuration)); + Assert.Empty(collector.GetLongRecords(MetricNames.ConsumedMessages)); + } + + [Fact] + public async Task AckOrNackAsync_DirectNack_NacksWithRequeueWithoutEmittingMetrics() + { + // Mirrors the null-processor path: the host knows the message wasn't handled and + // should be requeued for the next consumer start. No metric emission. + var queueName = $"q-pipe-direct-nack-{Guid.NewGuid():N}"; + using var collector = new MetricCollector("messaging.destination.name", queueName); + + var consumerChannel = BuildConsumerChannel(isOpen: true); + var pipeline = new RabbitMqDispatchPipeline( + queueName, () => false, () => false, NullLogger.Instance); + + var args = MakeArgs(deliveryTag: 22); + await pipeline.AckOrNackAsync(consumerChannel.Object, args, processed: false); + + consumerChannel.Verify(c => c.BasicNackAsync(22UL, false, true, It.IsAny()), Times.Once); + consumerChannel.Verify(c => c.BasicAckAsync(It.IsAny(), It.IsAny(), It.IsAny()), Times.Never); + Assert.Empty(collector.GetLongRecords(MetricNames.ConsumedMessages)); + } + + [Fact] + public async Task AckOrNackAsync_ChannelNull_LogsDebug_NoFrameSent() + { + var capturedLogs = new List(); + var pipeline = new RabbitMqDispatchPipeline( + "q", () => false, () => false, BuildCapturingLogger(capturedLogs)); + + await pipeline.AckOrNackAsync(model: null, MakeArgs(deliveryTag: 31), processed: true); + + Assert.Contains(capturedLogs, l => l.Level == LogLevel.Debug && l.Message.Contains("Channel was null")); + Assert.DoesNotContain(capturedLogs, l => l.Level == LogLevel.Warning); + } + + [Fact] + public async Task AckOrNackAsync_ChannelClosed_LogsDebug_NoFrameSent() + { + var capturedLogs = new List(); + var consumerChannel = BuildConsumerChannel(isOpen: false); + var pipeline = new RabbitMqDispatchPipeline( + "q", () => false, () => false, BuildCapturingLogger(capturedLogs)); + + await pipeline.AckOrNackAsync(consumerChannel.Object, MakeArgs(deliveryTag: 32), processed: true); + + Assert.Contains(capturedLogs, l => l.Level == LogLevel.Debug && l.Message.Contains("Channel was closed")); + consumerChannel.Verify(c => c.BasicAckAsync(It.IsAny(), It.IsAny(), It.IsAny()), Times.Never); + consumerChannel.Verify(c => c.BasicNackAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny()), Times.Never); + } + + [Fact] + public async Task AckOrNackAsync_ShutdownTimedOut_LogsDebug_NoFrameSent() + { + var capturedLogs = new List(); + var consumerChannel = BuildConsumerChannel(isOpen: true); + var pipeline = new RabbitMqDispatchPipeline( + "q", + shutdownTimedOutQuery: () => true, + shutdownStartedQuery: () => true, + BuildCapturingLogger(capturedLogs)); + + await pipeline.AckOrNackAsync(consumerChannel.Object, MakeArgs(deliveryTag: 33), processed: true); + + Assert.Contains(capturedLogs, l => l.Level == LogLevel.Debug && l.Message.Contains("Shutdown grace window expired")); + consumerChannel.Verify(c => c.BasicAckAsync(It.IsAny(), It.IsAny(), It.IsAny()), Times.Never); + } + + [Fact] + public async Task AckOrNackAsync_AlreadyClosed_DuringShutdown_LogsDebug() + { + var capturedLogs = new List(); + var consumerChannel = new Mock(MockBehavior.Strict); + consumerChannel.Setup(c => c.IsOpen).Returns(true); + consumerChannel + .Setup(c => c.BasicAckAsync(It.IsAny(), It.IsAny(), It.IsAny())) + .ThrowsAsync(new global::RabbitMQ.Client.Exceptions.AlreadyClosedException( + new ShutdownEventArgs(ShutdownInitiator.Application, 0, "test"))); + + var pipeline = new RabbitMqDispatchPipeline( + "q", + shutdownTimedOutQuery: () => false, + shutdownStartedQuery: () => true, // we are shutting down + BuildCapturingLogger(capturedLogs)); + + await pipeline.AckOrNackAsync(consumerChannel.Object, MakeArgs(deliveryTag: 34), processed: true); + + Assert.Contains(capturedLogs, + l => l.Level == LogLevel.Debug && l.Message.Contains("Channel already closed while acking/nacking")); + // No Warning/Error: the shutdown-shaped failure is demoted to Debug. + Assert.DoesNotContain(capturedLogs, l => l.Level == LogLevel.Warning); + Assert.DoesNotContain(capturedLogs, l => l.Level == LogLevel.Error); + } + + [Fact] + public async Task AckOrNackAsync_AlreadyClosed_NotShutdown_RoutesViaLogAckOrNackFailure() + { + // Outside shutdown, AlreadyClosedException is unexpected → goes through + // RabbitMqClientLog.AckFailed (processed=true) which logs at Warning. + var capturedLogs = new List(); + var consumerChannel = new Mock(MockBehavior.Strict); + consumerChannel.Setup(c => c.IsOpen).Returns(true); + consumerChannel + .Setup(c => c.BasicAckAsync(It.IsAny(), It.IsAny(), It.IsAny())) + .ThrowsAsync(new global::RabbitMQ.Client.Exceptions.AlreadyClosedException( + new ShutdownEventArgs(ShutdownInitiator.Application, 0, "test"))); + + var pipeline = new RabbitMqDispatchPipeline( + "q", + shutdownTimedOutQuery: () => false, + shutdownStartedQuery: () => false, // NOT shutting down + BuildCapturingLogger(capturedLogs)); + + await pipeline.AckOrNackAsync(consumerChannel.Object, MakeArgs(deliveryTag: 35), processed: true); + + // The AckFailed log is at Warning (its severity is fixed by LoggerMessage.Define). + Assert.Contains(capturedLogs, l => l.Level == LogLevel.Warning); + // Not the "during shutdown" Debug path. + Assert.DoesNotContain(capturedLogs, + l => l.Level == LogLevel.Debug && l.Message.Contains("during shutdown")); + } + + [Fact] + public async Task AckOrNackAsync_ObjectDisposed_DuringShutdown_LogsDebug() + { + var capturedLogs = new List(); + var consumerChannel = new Mock(MockBehavior.Strict); + consumerChannel.Setup(c => c.IsOpen).Returns(true); + consumerChannel + .Setup(c => c.BasicAckAsync(It.IsAny(), It.IsAny(), It.IsAny())) + .ThrowsAsync(new ObjectDisposedException("IChannel")); + + var pipeline = new RabbitMqDispatchPipeline( + "q", + shutdownTimedOutQuery: () => false, + shutdownStartedQuery: () => true, + BuildCapturingLogger(capturedLogs)); + + await pipeline.AckOrNackAsync(consumerChannel.Object, MakeArgs(deliveryTag: 36), processed: true); + + Assert.Contains(capturedLogs, + l => l.Level == LogLevel.Debug && l.Message.Contains("Channel disposed while acking/nacking")); + Assert.DoesNotContain(capturedLogs, l => l.Level == LogLevel.Warning); + } + + // ── Harness ─────────────────────────────────────────────────────────────── + + private static Mock BuildConsumerChannel(bool isOpen) + { + var ch = new Mock(MockBehavior.Strict); + ch.Setup(c => c.IsOpen).Returns(isOpen); + if (isOpen) + { + ch.Setup(c => c.BasicAckAsync(It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(ValueTask.CompletedTask); + ch.Setup(c => c.BasicNackAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(ValueTask.CompletedTask); + } + return ch; + } + + private static Mock BuildPublishChannel(bool retryPublishThrows = false) + { + var ch = new Mock(MockBehavior.Loose); + if (retryPublishThrows) + { + ch.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .ThrowsAsync(new global::RabbitMQ.Client.Exceptions.AlreadyClosedException( + new ShutdownEventArgs(ShutdownInitiator.Application, 0, "test"))); + } + else + { + ch.Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Returns(ValueTask.CompletedTask); + } + return ch; + } + + private static InboundMessageProcessor BuildProcessor( + string queueName, + ConsumerEventHandler handler, + bool shutdownTimedOut = false) + { + var queueConfig = new Mock(); + queueConfig.SetupGet(q => q.QueueName).Returns(queueName); + queueConfig.SetupGet(q => q.AuditingEnabled).Returns(false); + queueConfig.SetupGet(q => q.AuditQueueName).Returns("audit"); + queueConfig.SetupGet(q => q.ErrorQueueName).Returns("err"); + queueConfig.SetupGet(q => q.DisableErrors).Returns(false); + + var auditPublisher = new MessageAuditPublisher(queueConfig.Object); + var retryHandler = new MessageRetryHandler(maxRetries: 3, errorExchange: "err", consumerQueueName: queueName, NullLogger.Instance); + + return new InboundMessageProcessor( + consumerEventHandler: handler, + retryHandler: retryHandler, + auditPublisher: auditPublisher, + queueConfiguration: queueConfig.Object, + timeProvider: TimeProvider.System, + logger: NullLogger.Instance, + retryQueueName: queueName + ".Retries", + errorsDisabled: false, + deadLetterUnhandledMessages: false, + includeMachineNameInHeaders: false, + shutdownTimedOut: () => shutdownTimedOut, + shutdownPublishToken: () => CancellationToken.None); + } + + private static ILogger BuildCapturingLogger(List capturedLogs) + { + var logger = new Mock(); + logger.Setup(l => l.IsEnabled(It.IsAny())).Returns(true); + logger + .Setup(l => l.Log( + It.IsAny(), + It.IsAny(), + It.IsAny(), + It.IsAny(), + It.IsAny>())) + .Callback(new InvocationAction(invocation => + { + var level = (LogLevel)invocation.Arguments[0]; + var formatter = (Delegate)invocation.Arguments[4]; + var message = (string)formatter.DynamicInvoke(invocation.Arguments[2], invocation.Arguments[3])!; + capturedLogs.Add(new CapturedLog(level, message)); + })); + return logger.Object; + } + + private static BasicDeliverEventArgs MakeArgs(ulong deliveryTag) + => new( + consumerTag: "ct", + deliveryTag: deliveryTag, + redelivered: false, + exchange: "", + routingKey: "q", + properties: new BasicProperties + { + Headers = new Dictionary(StringComparer.Ordinal) + { + [HeaderKeys.FullTypeName] = "Foo.Bar", + }, + }, + body: new byte[] { 1 }); + + private sealed record CapturedLog(LogLevel Level, string Message); +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqHeaderValidatorBrokerExceptionTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqHeaderValidatorBrokerExceptionTests.cs new file mode 100644 index 000000000..094f280d2 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqHeaderValidatorBrokerExceptionTests.cs @@ -0,0 +1,164 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Pins the contract that a broker exception thrown by +/// during header +/// validation does not escape . +/// The inbound message is permanently invalid regardless of whether the error-exchange +/// publish succeeds, so the caller must still receive a Reject result and ack the delivery. +/// +public sealed class RabbitMqHeaderValidatorBrokerExceptionTests +{ + private const long DefaultMaxBodySize = 64 * 1024; + private const int DefaultMaxHeaderCount = 64; + private const int DefaultMaxHeaderValueBytes = 8192; + + /// + /// When the terminal-failure publish channel is closed, ValidateAsync must return a + /// Reject result instead of propagating the broker exception. Without this guard the + /// host's generic catch issues a nack-with-requeue, redelivering a permanently-invalid + /// message for as long as the publish channel remains unhealthy. + /// + [Fact] + public async Task ValidateAsync_when_publish_channel_is_closed_returns_Reject_instead_of_propagating() + { + var retryHandler = new Mock(MockBehavior.Strict); + retryHandler + .Setup(r => r.HandleTerminalFailureAsync( + It.IsAny(), + It.IsAny(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .ThrowsAsync(new global::RabbitMQ.Client.Exceptions.AlreadyClosedException( + new ShutdownEventArgs(ShutdownInitiator.Peer, 0, "broker reset"))); + + var validator = BuildValidator(retryHandler.Object); + var publishChannel = new Mock(MockBehavior.Loose).Object; + + // Rule 2 (missing type-name header): headers dict present but neither TypeName + // nor FullTypeName set, so the validator routes to HandleTerminalFailureAsync. + var args = MakeArgs(new Dictionary(StringComparer.Ordinal) + { + ["X-Other"] = "unrelated", + }); + + var result = await validator.ValidateAsync(args, publishChannel, CopyHeaders(args), CancellationToken.None); + + Assert.False(result.Accepted); + Assert.Equal("missing type-name header", result.RejectReason); + } + + /// + /// When BasicPublishAsync(mandatory:true) targets an unroutable exchange — typical of + /// error-exchange topology drift — RabbitMQ.Client throws PublishException. The + /// broker-exception guard must swallow it and return Reject so the inbound delivery is + /// acked rather than nacked-with-requeue (which would loop the same permanently-invalid + /// message indefinitely). + /// + [Fact] + public async Task ValidateAsync_when_publish_throws_PublishException_returns_Reject() + { + var retryHandler = new Mock(MockBehavior.Strict); + retryHandler + .Setup(r => r.HandleTerminalFailureAsync( + It.IsAny(), + It.IsAny(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .ThrowsAsync(new global::RabbitMQ.Client.Exceptions.PublishException(1, false)); + + var validator = BuildValidator(retryHandler.Object); + var publishChannel = new Mock(MockBehavior.Loose).Object; + + // Rule 2 (missing type-name header): headers dict present but neither TypeName + // nor FullTypeName set, so the validator routes to HandleTerminalFailureAsync. + var args = MakeArgs(new Dictionary(StringComparer.Ordinal) + { + ["X-Other"] = "unrelated", + }); + + var result = await validator.ValidateAsync(args, publishChannel, CopyHeaders(args), CancellationToken.None); + + Assert.False(result.Accepted); + Assert.Equal("missing type-name header", result.RejectReason); + } + + /// + /// OperationCanceledException must propagate from ValidateAsync so cooperative + /// shutdown is distinguishable from a broker swallow. This counter-pins that the + /// new broker-exception guard does not accidentally swallow cancellation. + /// + [Fact] + public async Task ValidateAsync_when_OCE_during_terminal_failure_propagates() + { + var retryHandler = new Mock(MockBehavior.Strict); + retryHandler + .Setup(r => r.HandleTerminalFailureAsync( + It.IsAny(), + It.IsAny(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .ThrowsAsync(new OperationCanceledException()); + + var validator = BuildValidator(retryHandler.Object); + var publishChannel = new Mock(MockBehavior.Loose).Object; + + var args = MakeArgs(new Dictionary(StringComparer.Ordinal) + { + ["X-Other"] = "unrelated", + }); + + await Assert.ThrowsAsync( + () => validator.ValidateAsync(args, publishChannel, CopyHeaders(args), CancellationToken.None)); + } + + // ── Harness ────────────────────────────────────────────────────────────── + + private static RabbitMqHeaderValidator BuildValidator(IMessageRetryHandler retryHandler) + => new( + retryHandler, + DefaultMaxBodySize, + DefaultMaxHeaderCount, + DefaultMaxHeaderValueBytes, + shutdownPublishTokenFactory: () => CancellationToken.None, + logger: NullLogger.Instance); + + private static BasicDeliverEventArgs MakeArgs(IDictionary? headers = null, byte[]? body = null) + => new( + consumerTag: "ct", + deliveryTag: 1, + redelivered: false, + exchange: "", + routingKey: "q", + properties: new BasicProperties { Headers = headers }, + body: body ?? [1]); + + private static Dictionary CopyHeaders(BasicDeliverEventArgs args) + { + var copy = new Dictionary(StringComparer.Ordinal); + var src = args.BasicProperties.Headers; + if (src == null) + { + return copy; + } + foreach (var kvp in src) + { + if (kvp.Value is not null) + { + copy[kvp.Key] = kvp.Value; + } + } + return copy; + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqHeaderValidatorTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqHeaderValidatorTests.cs new file mode 100644 index 000000000..2f47ff5ca --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqHeaderValidatorTests.cs @@ -0,0 +1,324 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +/// +/// Unit tests for . These exercise the four +/// pre-dispatch rules at the validator level so that test failures isolate the rule +/// being violated rather than dragging in the host's admission/ack/nack lifecycle. +/// Host-level tests in RabbitMqConsumerHostHeaderSizeTests still cover the +/// integration surface. +/// +public sealed class RabbitMqHeaderValidatorTests +{ + private const long DefaultMaxBodySize = 64 * 1024; + private const int DefaultMaxHeaderCount = 64; + private const int DefaultMaxHeaderValueBytes = 8192; + + [Fact] + public async Task ValidateAsync_MissingTypeNameHeader_RejectsAndPublishesTerminalFailure() + { + var (validator, publishChannel, capturedExceptions) = BuildValidator(); + + // Headers dictionary present but neither TypeName nor FullTypeName populated. + var args = MakeArgs(new Dictionary(StringComparer.Ordinal) + { + ["X-Other"] = "value", + }); + + var result = await validator.ValidateAsync(args, publishChannel.Object, CopyHeaders(args), CancellationToken.None); + + Assert.False(result.Accepted); + Assert.Equal("missing type-name header", result.RejectReason); + var ex = Assert.Single(capturedExceptions); + Assert.Contains("Message headers must contain type name", ex); + } + + [Fact] + public async Task ValidateAsync_NullHeaders_RejectsAsMissingTypeName() + { + var (validator, publishChannel, capturedExceptions) = BuildValidator(); + + var args = MakeArgs(headers: null); + + var result = await validator.ValidateAsync(args, publishChannel.Object, CopyHeaders(args), CancellationToken.None); + + Assert.False(result.Accepted); + Assert.Equal("missing type-name header", result.RejectReason); + Assert.Single(capturedExceptions); + } + + [Fact] + public async Task ValidateAsync_OversizedBody_RejectsAndPublishesTerminalFailure() + { + var (validator, publishChannel, capturedExceptions) = BuildValidator(maxBodySize: 16); + + var args = MakeArgs( + headers: new Dictionary(StringComparer.Ordinal) + { + [HeaderKeys.FullTypeName] = "Foo.Bar", + }, + body: new byte[32]); + + var result = await validator.ValidateAsync(args, publishChannel.Object, CopyHeaders(args), CancellationToken.None); + + Assert.False(result.Accepted); + Assert.Equal("oversized body", result.RejectReason); + var ex = Assert.Single(capturedExceptions); + Assert.Contains("Inbound message size 32 bytes exceeds configured limit 16 bytes", ex); + } + + [Fact] + public async Task ValidateAsync_TooManyHeaders_RejectsAndPublishesTerminalFailure() + { + var (validator, publishChannel, capturedExceptions) = BuildValidator(maxHeaderCount: 4); + + var headers = new Dictionary(StringComparer.Ordinal) + { + [HeaderKeys.FullTypeName] = "Foo.Bar", + ["A"] = "1", + ["B"] = "2", + ["C"] = "3", + ["D"] = "4", + }; + var args = MakeArgs(headers); + + var result = await validator.ValidateAsync(args, publishChannel.Object, CopyHeaders(args), CancellationToken.None); + + Assert.False(result.Accepted); + Assert.Equal("too many headers", result.RejectReason); + var ex = Assert.Single(capturedExceptions); + Assert.Contains("Inbound header count 5 exceeds configured limit 4", ex); + } + + [Fact] + public async Task ValidateAsync_OversizedByteArrayHeader_RejectsAndPublishesTerminalFailure() + { + var (validator, publishChannel, capturedExceptions) = BuildValidator(); + + var args = MakeArgs(new Dictionary(StringComparer.Ordinal) + { + [HeaderKeys.FullTypeName] = "Foo.Bar", + ["X-Big-Bytes"] = new byte[DefaultMaxHeaderValueBytes + 1], + }); + + var result = await validator.ValidateAsync(args, publishChannel.Object, CopyHeaders(args), CancellationToken.None); + + Assert.False(result.Accepted); + Assert.Equal("oversized header value", result.RejectReason); + var ex = Assert.Single(capturedExceptions); + Assert.Contains("X-Big-Bytes", ex); + } + + [Fact] + public async Task ValidateAsync_OversizedStringHeader_UsesUtf8ByteCountAndRejects() + { + var (validator, publishChannel, capturedExceptions) = BuildValidator(); + + // ASCII chars are 1 byte each in UTF-8, so a string of length N has UTF-8 byte count N. + const int OverLimit = DefaultMaxHeaderValueBytes + 1; + var args = MakeArgs(new Dictionary(StringComparer.Ordinal) + { + [HeaderKeys.FullTypeName] = "Foo.Bar", + ["X-Big-String"] = new string('x', OverLimit), + }); + + var result = await validator.ValidateAsync(args, publishChannel.Object, CopyHeaders(args), CancellationToken.None); + + Assert.False(result.Accepted); + Assert.Equal("oversized header value", result.RejectReason); + var ex = Assert.Single(capturedExceptions); + Assert.Contains("X-Big-String", ex); + } + + [Fact] + public async Task ValidateAsync_HeaderAggregateExceedsMessageSize_RejectsAsOversizedAggregate() + { + // Each individual header value fits the per-value cap, but the sum of values is + // greater than the body cap. Without the aggregate rule an adversarial producer + // could pack 64 × 8 KiB = 512 KiB into headers and bypass the body cap entirely. + // Body cap = 8 KiB, per-value cap = 1 KiB, count = 16 → aggregate ≈ 16 KiB > 8 KiB. + const long bodyCap = 8 * 1024; + const int perValueCap = 1024; + const int headerCount = 16; + + var (validator, publishChannel, capturedExceptions) = BuildValidator( + maxBodySize: bodyCap, + maxHeaderCount: 64, // higher than headerCount so Rule 3 doesn't fire first + maxHeaderValueBytes: perValueCap); + + var headers = new Dictionary(StringComparer.Ordinal) + { + [HeaderKeys.FullTypeName] = "Foo.Bar", + }; + // Each filler value fits inside per-value cap (well under 1 KiB) but the sum + // overshoots the body cap. + for (var i = 0; i < headerCount; i++) + { + headers[$"X-Filler-{i}"] = new string('x', perValueCap - 8); + } + var args = MakeArgs(headers); + + var result = await validator.ValidateAsync(args, publishChannel.Object, CopyHeaders(args), CancellationToken.None); + + Assert.False(result.Accepted); + Assert.Equal("oversized header aggregate", result.RejectReason); + var ex = Assert.Single(capturedExceptions); + Assert.Contains("aggregate size", ex, StringComparison.OrdinalIgnoreCase); + Assert.Contains("message-size budget", ex, StringComparison.OrdinalIgnoreCase); + } + + [Fact] + public async Task ValidateAsync_HeaderAggregateAtBodyBudget_StillAccepts() + { + // A small handful of small headers sum to far less than the body cap and must + // still be accepted. Pins the boundary that the aggregate rule trips only when + // headers actually overshoot the budget. + var (validator, publishChannel, capturedExceptions) = BuildValidator(); + + var args = MakeArgs(new Dictionary(StringComparer.Ordinal) + { + [HeaderKeys.FullTypeName] = "Foo.Bar", + ["X-One"] = "1", + ["X-Two"] = "2", + ["X-Three"] = "3", + }); + + var result = await validator.ValidateAsync(args, publishChannel.Object, CopyHeaders(args), CancellationToken.None); + + Assert.True(result.Accepted); + Assert.Empty(capturedExceptions); + } + + [Fact] + public async Task ValidateAsync_AllRulesPass_AcceptsWithoutPublishing() + { + var (validator, publishChannel, capturedExceptions) = BuildValidator(); + + var args = MakeArgs(new Dictionary(StringComparer.Ordinal) + { + [HeaderKeys.FullTypeName] = "Foo.Bar", + ["X-Small"] = "small", + }); + + var result = await validator.ValidateAsync(args, publishChannel.Object, CopyHeaders(args), CancellationToken.None); + + Assert.True(result.Accepted); + Assert.Null(result.RejectReason); + Assert.Empty(capturedExceptions); + publishChannel.Verify( + c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny()), + Times.Never); + } + + [Fact] + public void Constructor_NullRetryHandler_Throws() + { + Assert.Throws(() => new RabbitMqHeaderValidator( + retryHandler: null!, + maxInboundMessageSize: DefaultMaxBodySize, + maxHeaderCount: DefaultMaxHeaderCount, + maxHeaderValueBytes: DefaultMaxHeaderValueBytes, + shutdownPublishTokenFactory: () => CancellationToken.None, + logger: NullLogger.Instance)); + } + + [Fact] + public void Constructor_NullShutdownPublishTokenFactory_Throws() + { + var retry = new MessageRetryHandler(3, "err", "q", NullLogger.Instance); + Assert.Throws(() => new RabbitMqHeaderValidator( + retryHandler: retry, + maxInboundMessageSize: DefaultMaxBodySize, + maxHeaderCount: DefaultMaxHeaderCount, + maxHeaderValueBytes: DefaultMaxHeaderValueBytes, + shutdownPublishTokenFactory: null!, + logger: NullLogger.Instance)); + } + + // ── Harness ────────────────────────────────────────────────────────────── + + private static (RabbitMqHeaderValidator Validator, Mock PublishChannel, List CapturedExceptions) BuildValidator( + long maxBodySize = DefaultMaxBodySize, + int maxHeaderCount = DefaultMaxHeaderCount, + int maxHeaderValueBytes = DefaultMaxHeaderValueBytes) + { + var capturedExceptions = new List(); + var publishChannel = new Mock(MockBehavior.Loose); + publishChannel + .Setup(c => c.BasicPublishAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny>(), + It.IsAny())) + .Callback, CancellationToken>( + (_, _, _, props, _, _) => + { + if (props.Headers != null && + props.Headers.TryGetValue(HeaderKeys.Exception, out var raw) && + raw is not null) + { + var json = raw switch + { + string s => s, + byte[] b => System.Text.Encoding.UTF8.GetString(b), + _ => raw.ToString() ?? string.Empty, + }; + capturedExceptions.Add(json); + } + }) + .Returns(ValueTask.CompletedTask); + + var retry = new MessageRetryHandler(3, "err", "q", NullLogger.Instance); + var validator = new RabbitMqHeaderValidator( + retry, + maxBodySize, + maxHeaderCount, + maxHeaderValueBytes, + shutdownPublishTokenFactory: () => CancellationToken.None, + logger: NullLogger.Instance); + + return (validator, publishChannel, capturedExceptions); + } + + private static BasicDeliverEventArgs MakeArgs(IDictionary? headers = null, byte[]? body = null) + => new( + consumerTag: "ct", + deliveryTag: 1, + redelivered: false, + exchange: "", + routingKey: "q", + properties: new BasicProperties { Headers = headers }, + body: body ?? [1]); + + // The validator takes the copied headers from the host. For test purposes we just allocate + // a fresh dictionary that mirrors the input — the validator only forwards it to + // MessageRetryHandler for the Exception-header stamp, so faithful copy semantics are not + // required (these tests don't verify CopyInboundHeaders' eager-decode invariant). + private static Dictionary CopyHeaders(BasicDeliverEventArgs args) + { + var copy = new Dictionary(StringComparer.Ordinal); + var src = args.BasicProperties.Headers; + if (src == null) + { + return copy; + } + foreach (var kvp in src) + { + if (kvp.Value is null) + { + continue; + } + copy[kvp.Key] = kvp.Value; + } + return copy; + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqOptionsValidateTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqOptionsValidateTests.cs new file mode 100644 index 000000000..77e557343 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqOptionsValidateTests.cs @@ -0,0 +1,124 @@ +using ServiceConnect.Client.RabbitMQ.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public sealed class RabbitMqOptionsValidateTests +{ + [Fact] + public void Validate_AllDefaults_ReturnsEmpty() + { + var options = new RabbitMqOptions(); + var errors = options.Validate(); + Assert.Empty(errors); + } + + [Fact] + public void Validate_PortBelowOne_ReturnsError() + { + var options = new RabbitMqOptions { Port = 0 }; + var errors = options.Validate(); + Assert.Contains(errors, e => e.Contains("Port", System.StringComparison.Ordinal)); + } + + [Fact] + public void Validate_PortAbove65535_ReturnsError() + { + var options = new RabbitMqOptions { Port = 70000 }; + var errors = options.Validate(); + Assert.Contains(errors, e => e.Contains("Port", System.StringComparison.Ordinal)); + } + + [Fact] + public void Validate_NegativeRetryCount_ReturnsError() + { + var options = new RabbitMqOptions { RetryCount = -1 }; + var errors = options.Validate(); + Assert.Contains(errors, e => e.Contains("RetryCount", System.StringComparison.Ordinal)); + } + + [Fact] + public void Validate_ZeroPublishTimeout_ReturnsError() + { + var options = new RabbitMqOptions { PublishTimeout = System.TimeSpan.Zero }; + var errors = options.Validate(); + Assert.Contains(errors, e => e.Contains("PublishTimeout", System.StringComparison.Ordinal)); + } + + [Fact] + public void Validate_NegativePublishTimeout_ReturnsError() + { + var options = new RabbitMqOptions { PublishTimeout = System.TimeSpan.FromSeconds(-1) }; + var errors = options.Validate(); + Assert.Contains(errors, e => e.Contains("PublishTimeout", System.StringComparison.Ordinal)); + } + + [Fact] + public void Validate_ZeroMaxOutstandingPublishConfirms_ReturnsError() + { + var options = new RabbitMqOptions { MaxOutstandingPublishConfirms = 0 }; + var errors = options.Validate(); + Assert.Contains(errors, e => e.Contains("MaxOutstandingPublishConfirms", System.StringComparison.Ordinal)); + } + + [Fact] + public void Validate_NegativeMessageSize_ReturnsError() + { + var options = new RabbitMqOptions { MessageSize = -1 }; + var errors = options.Validate(); + Assert.Contains(errors, e => e.Contains("MessageSize", System.StringComparison.Ordinal)); + } + + [Fact] + public void Validate_ZeroNetworkRecoveryInterval_ReturnsError() + { + var options = new RabbitMqOptions { NetworkRecoveryInterval = System.TimeSpan.Zero }; + var errors = options.Validate(); + Assert.Contains(errors, e => e.Contains("NetworkRecoveryInterval", System.StringComparison.Ordinal)); + } + + [Fact] + public void Validate_ZeroMaxHeaderCount_ReturnsError() + { + var options = new RabbitMqOptions { MaxHeaderCount = 0 }; + var errors = options.Validate(); + Assert.Contains(errors, e => e.Contains("MaxHeaderCount", System.StringComparison.Ordinal)); + } + + [Fact] + public void Validate_NegativeMaxHeaderCount_ReturnsError() + { + var options = new RabbitMqOptions { MaxHeaderCount = -1 }; + var errors = options.Validate(); + Assert.Contains(errors, e => e.Contains("MaxHeaderCount", System.StringComparison.Ordinal)); + } + + [Fact] + public void Validate_ZeroMaxHeaderValueBytes_ReturnsError() + { + var options = new RabbitMqOptions { MaxHeaderValueBytes = 0 }; + var errors = options.Validate(); + Assert.Contains(errors, e => e.Contains("MaxHeaderValueBytes", System.StringComparison.Ordinal)); + } + + [Fact] + public void Validate_NegativeMaxHeaderValueBytes_ReturnsError() + { + var options = new RabbitMqOptions { MaxHeaderValueBytes = -1 }; + var errors = options.Validate(); + Assert.Contains(errors, e => e.Contains("MaxHeaderValueBytes", System.StringComparison.Ordinal)); + } + + [Fact] + public void Validate_AggregatesMultipleErrors() + { + var options = new RabbitMqOptions + { + Port = 0, + RetryCount = -5, + PublishTimeout = System.TimeSpan.Zero, + }; + var errors = options.Validate(); + Assert.Equal(3, errors.Count); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqTopologyProvisionerQueueBindArgumentsTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqTopologyProvisionerQueueBindArgumentsTests.cs new file mode 100644 index 000000000..f425da5aa --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqTopologyProvisionerQueueBindArgumentsTests.cs @@ -0,0 +1,69 @@ +using System.Collections.Generic; +using System.Threading; +using System.Threading.Tasks; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public class RabbitMqTopologyProvisionerQueueBindArgumentsTests +{ + private static (Mock Channel, RabbitMqTopologyProvisioner Provisioner) CreateProvisioner() + { + var channel = new Mock(MockBehavior.Loose); + var provisioner = new RabbitMqTopologyProvisioner(NullLogger.Instance); + return (channel, provisioner); + } + + [Fact] + public async Task ConfigureDeclareUtilityQueueAsync_QueueBindAsync_ReceivesNullArguments() + { + var (channel, provisioner) = CreateProvisioner(); + var capturedArgs = new List?>(); + + channel.Setup(c => c.QueueBindAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny>(), + It.IsAny(), It.IsAny())) + .Callback, bool, CancellationToken>( + (_, _, _, args, _, _) => capturedArgs.Add(args)) + .Returns(Task.CompletedTask); + + var queueArguments = new Dictionary { { "x-message-ttl", 60000 } }; + await provisioner.ConfigureDeclareUtilityQueueAsync(channel.Object, "some-queue", queueArguments, isInitialSetup: false); + + Assert.NotEmpty(capturedArgs); + Assert.All(capturedArgs, Assert.Null); + } + + [Fact] + public async Task ConfigureRetryTopologyAsync_QueueBindAsync_ReceivesNullArguments() + { + var (channel, provisioner) = CreateProvisioner(); + var capturedArgs = new List?>(); + + channel.Setup(c => c.QueueBindAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny>(), + It.IsAny(), It.IsAny())) + .Callback, bool, CancellationToken>( + (_, _, _, args, _, _) => capturedArgs.Add(args)) + .Returns(Task.CompletedTask); + + var retryQueueArguments = new Dictionary(); + await provisioner.ConfigureRetryTopologyAsync( + channel.Object, + queueName: "my-queue", + durable: true, + autoDelete: false, + retryDelayMs: 5000, + retryQueueArguments: retryQueueArguments, + isInitialSetup: false); + + Assert.NotEmpty(capturedArgs); + Assert.All(capturedArgs, Assert.Null); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqTopologyProvisionerRetryArgumentsTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqTopologyProvisionerRetryArgumentsTests.cs new file mode 100644 index 000000000..43e868b37 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqTopologyProvisionerRetryArgumentsTests.cs @@ -0,0 +1,75 @@ +using Microsoft.Extensions.Logging; +using Moq; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public sealed class RabbitMqTopologyProvisionerRetryArgumentsTests +{ + [Fact] + public async Task ConfigureRetryTopologyAsync_CallerSuppliesFrameworkArgs_FrameworkValuesWin_AndDebugLogged() + { + IDictionary? capturedArgs = null; + var channel = new Mock(); + channel + .Setup(c => c.ExchangeDeclareAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny>(), false, false, It.IsAny())) + .Returns(Task.CompletedTask); + channel + .Setup(c => c.QueueBindAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny>(), false, It.IsAny())) + .Returns(Task.CompletedTask); + channel + .Setup(c => c.QueueDeclareAsync( + It.Is(s => s.EndsWith(".Retries", StringComparison.Ordinal)), + It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny>(), + false, false, It.IsAny())) + .Callback, bool, bool, CancellationToken>( + (_, _, _, _, args, _, _, _) => capturedArgs = new Dictionary(args!, StringComparer.Ordinal)) + .ReturnsAsync(new QueueDeclareOk("q", 0, 0)); + + var captured = new List<(LogLevel Level, string Message)>(); + var logger = new Mock(); + logger.Setup(l => l.IsEnabled(It.IsAny())).Returns(true); + logger.Setup(l => l.Log( + It.IsAny(), + It.IsAny(), + It.IsAny(), + It.IsAny(), + (Func)It.IsAny())) + .Callback(new InvocationAction(invocation => + { + var level = (LogLevel)invocation.Arguments[0]; + var formatter = (Delegate)invocation.Arguments[4]; + var message = (string)formatter.DynamicInvoke(invocation.Arguments[2], invocation.Arguments[3])!; + captured.Add((level, message)); + })); + + var caller = new Dictionary + { + [RabbitMqQueueNaming.XDeadLetterExchangeArgument] = "user-supplied-dlx", + [RabbitMqQueueNaming.XMessageTtlArgument] = 999, + ["x-max-length"] = 1000, + }; + + var provisioner = new RabbitMqTopologyProvisioner(logger.Object); + await provisioner.ConfigureRetryTopologyAsync( + channel.Object, + queueName: "main-q", + durable: true, + autoDelete: false, + retryDelayMs: 5000, + retryQueueArguments: caller, + isInitialSetup: true); + + Assert.NotNull(capturedArgs); + Assert.Equal("main-q.Retries.DeadLetter", capturedArgs![RabbitMqQueueNaming.XDeadLetterExchangeArgument]); + Assert.Equal(5000, capturedArgs[RabbitMqQueueNaming.XMessageTtlArgument]); + Assert.Equal(1000, capturedArgs["x-max-length"]); // non-conflicting key flows through + + var debugLogs = captured.Where(l => l.Level == LogLevel.Debug).ToList(); + Assert.Equal(2, debugLogs.Count); + Assert.Contains(debugLogs, l => l.Message.Contains(RabbitMqQueueNaming.XDeadLetterExchangeArgument)); + Assert.Contains(debugLogs, l => l.Message.Contains(RabbitMqQueueNaming.XMessageTtlArgument)); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqTopologyProvisionerRetryDlxAutoDeleteTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqTopologyProvisionerRetryDlxAutoDeleteTests.cs new file mode 100644 index 000000000..0f6c4cb5f --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqTopologyProvisionerRetryDlxAutoDeleteTests.cs @@ -0,0 +1,47 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using ServiceConnect.Client.RabbitMQ; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public sealed class RabbitMqTopologyProvisionerRetryDlxAutoDeleteTests +{ + [Theory] + [InlineData(true)] + [InlineData(false)] + public async Task ConfigureRetryTopologyAsync_DlxIsAlwaysAutoDeleteFalse_RegardlessOfCallerAutoDelete(bool callerAutoDelete) + { + bool? capturedDlxAutoDelete = null; + var channel = new Mock(); + channel + .Setup(c => c.ExchangeDeclareAsync( + It.Is(s => s.EndsWith(".Retries.DeadLetter", StringComparison.Ordinal)), + ExchangeType.Direct, + It.IsAny(), It.IsAny(), It.IsAny>(), + false, false, It.IsAny())) + .Callback, bool, bool, CancellationToken>( + (_, _, _, autoDelete, _, _, _, _) => capturedDlxAutoDelete = autoDelete) + .Returns(Task.CompletedTask); + // Other ExchangeDeclareAsync / QueueDeclareAsync / QueueBindAsync calls accept anything. + channel + .Setup(c => c.QueueDeclareAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny>(), false, false, It.IsAny())) + .ReturnsAsync(new QueueDeclareOk("q", 0, 0)); + channel + .Setup(c => c.QueueBindAsync(It.IsAny(), It.IsAny(), It.IsAny(), It.IsAny>(), false, It.IsAny())) + .Returns(Task.CompletedTask); + + var provisioner = new RabbitMqTopologyProvisioner(NullLogger.Instance); + await provisioner.ConfigureRetryTopologyAsync( + channel.Object, + queueName: "main-q", + durable: true, + autoDelete: callerAutoDelete, + retryDelayMs: 1000, + retryQueueArguments: new Dictionary(), + isInitialSetup: true); + + Assert.False(capturedDlxAutoDelete); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqTopologyProvisionerTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqTopologyProvisionerTests.cs new file mode 100644 index 000000000..3ddae5bb7 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/RabbitMqTopologyProvisionerTests.cs @@ -0,0 +1,206 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using RabbitMQ.Client; +using RabbitMQ.Client.Events; +using RabbitMQ.Client.Exceptions; +using ServiceConnect.Client.RabbitMQ; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public class RabbitMqTopologyProvisionerTests +{ + private static Mock MockChannel() + { + var channel = new Mock(); + channel.Setup(c => c.ExchangeDeclareAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny?>(), + It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + channel.Setup(c => c.QueueDeclareAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny?>(), + It.IsAny(), It.IsAny(), It.IsAny())) + .ReturnsAsync(new QueueDeclareOk("q", 0, 0)); + channel.Setup(c => c.QueueBindAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny?>(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + return channel; + } + + [Fact] + public void Constructor_ThrowsArgumentNullException_WhenLoggerIsNull() + { + Assert.Throws(() => new RabbitMqTopologyProvisioner(null!)); + } + + [Fact] + public async Task ConfigureDeclareExchangeAsync_DeclaresExchange_WithCorrectParameters() + { + var channel = MockChannel(); + var provisioner = new RabbitMqTopologyProvisioner(NullLogger.Instance); + + await provisioner.ConfigureDeclareExchangeAsync(channel.Object, "test.exchange", ExchangeType.Fanout); + + channel.Verify(c => c.ExchangeDeclareAsync( + "test.exchange", ExchangeType.Fanout, true, false, null, false, false, It.IsAny()), + Times.Once); + } + + [Fact] + public async Task ConfigureDeclareExchangeAsync_RethrowsOperationInterruptedException_RegardlessOfIsInitialSetup() + { + var channel = MockChannel(); + channel.Setup(c => c.ExchangeDeclareAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny?>(), + It.IsAny(), It.IsAny(), It.IsAny())) + .ThrowsAsync(new OperationInterruptedException(new ShutdownEventArgs( + ShutdownInitiator.Library, 406, "PRECONDITION_FAILED", cause: null, cancellationToken: CancellationToken.None))); + + var provisioner = new RabbitMqTopologyProvisioner(NullLogger.Instance); + + // Channel-closing AMQP errors must always propagate so the caller can recreate + // the channel rather than continue with a dead one — isInitialSetup is preserved + // for source-compat but no longer suppresses the throw. + await Assert.ThrowsAsync(() => + provisioner.ConfigureDeclareExchangeAsync(channel.Object, "test.exchange", ExchangeType.Fanout, isInitialSetup: false)); + } + + [Fact] + public async Task ConfigureDeclareExchangeAsync_RethrowsOperationInterruptedException_WhenInitialSetup() + { + var channel = MockChannel(); + var shutdownArgs = new ShutdownEventArgs(ShutdownInitiator.Library, 406, "PRECONDITION_FAILED", cause: null, cancellationToken: CancellationToken.None); + channel.Setup(c => c.ExchangeDeclareAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny?>(), + It.IsAny(), It.IsAny(), It.IsAny())) + .ThrowsAsync(new OperationInterruptedException(shutdownArgs)); + + var provisioner = new RabbitMqTopologyProvisioner(NullLogger.Instance); + + await Assert.ThrowsAsync(() => + provisioner.ConfigureDeclareExchangeAsync(channel.Object, "test.exchange", ExchangeType.Fanout, isInitialSetup: true)); + } + + [Fact] + public async Task ConfigureDeclareQueueAsync_DeclaresQueue_WithCorrectParameters() + { + var channel = MockChannel(); + var provisioner = new RabbitMqTopologyProvisioner(NullLogger.Instance); + var args = new Dictionary(); + + await provisioner.ConfigureDeclareQueueAsync(channel.Object, "orders", true, false, false, args); + + channel.Verify(c => c.QueueDeclareAsync( + "orders", true, false, false, args, false, false, It.IsAny()), + Times.Once); + } + + [Fact] + public async Task ConfigureDeclareQueueAsync_RethrowsOperationInterruptedException_WhenInitialSetup() + { + var channel = MockChannel(); + var shutdownArgs = new ShutdownEventArgs(ShutdownInitiator.Library, 406, "PRECONDITION_FAILED", cause: null, cancellationToken: CancellationToken.None); + channel.Setup(c => c.QueueDeclareAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny?>(), + It.IsAny(), It.IsAny(), It.IsAny())) + .ThrowsAsync(new OperationInterruptedException(shutdownArgs)); + + var provisioner = new RabbitMqTopologyProvisioner(NullLogger.Instance); + + await Assert.ThrowsAsync(() => + provisioner.ConfigureDeclareQueueAsync(channel.Object, "orders", true, false, false, new Dictionary(), isInitialSetup: true)); + } + + [Fact] + public async Task ConfigureDeclareUtilityQueueAsync_DeclaresQueueAndExchangeAndBinds() + { + var channel = MockChannel(); + var provisioner = new RabbitMqTopologyProvisioner(NullLogger.Instance); + var args = new Dictionary(); + + await provisioner.ConfigureDeclareUtilityQueueAsync(channel.Object, "error.queue", args); + + channel.Verify(c => c.ExchangeDeclareAsync( + "error.queue", ExchangeType.Direct, It.IsAny(), It.IsAny(), + It.IsAny?>(), It.IsAny(), It.IsAny(), It.IsAny()), + Times.Once); + channel.Verify(c => c.QueueDeclareAsync( + "error.queue", true, false, false, args, false, false, It.IsAny()), + Times.Once); + channel.Verify(c => c.QueueBindAsync( + "error.queue", "error.queue", string.Empty, null, false, It.IsAny()), + Times.Once); + } + + [Fact] + public async Task ConfigureDeclareUtilityQueueAsync_RethrowsOperationInterruptedException_RegardlessOfIsInitialSetup() + { + var channel = MockChannel(); + channel.Setup(c => c.ExchangeDeclareAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny?>(), + It.IsAny(), It.IsAny(), It.IsAny())) + .ThrowsAsync(new OperationInterruptedException(new ShutdownEventArgs( + ShutdownInitiator.Library, 406, "PRECONDITION_FAILED", cause: null, cancellationToken: CancellationToken.None))); + + var provisioner = new RabbitMqTopologyProvisioner(NullLogger.Instance); + var args = new Dictionary(); + + await Assert.ThrowsAsync(() => + provisioner.ConfigureDeclareUtilityQueueAsync(channel.Object, "error.queue", args, isInitialSetup: false)); + } + + [Fact] + public async Task ConfigureDeclareUtilityQueueAsync_RethrowsOperationInterruptedException_WhenInitialSetup() + { + var channel = MockChannel(); + var shutdownArgs = new ShutdownEventArgs(ShutdownInitiator.Library, 406, "PRECONDITION_FAILED", cause: null, cancellationToken: CancellationToken.None); + channel.Setup(c => c.QueueDeclareAsync( + It.IsAny(), It.IsAny(), It.IsAny(), + It.IsAny(), It.IsAny?>(), + It.IsAny(), It.IsAny(), It.IsAny())) + .ThrowsAsync(new OperationInterruptedException(shutdownArgs)); + + var provisioner = new RabbitMqTopologyProvisioner(NullLogger.Instance); + var args = new Dictionary(); + + await Assert.ThrowsAsync(() => + provisioner.ConfigureDeclareUtilityQueueAsync(channel.Object, "error.queue", args, isInitialSetup: true)); + } + + [Fact] + public async Task ConfigureRetryTopologyAsync_DeclaresRetryTopology() + { + var channel = MockChannel(); + var provisioner = new RabbitMqTopologyProvisioner(NullLogger.Instance); + var args = new Dictionary(); + + await provisioner.ConfigureRetryTopologyAsync(channel.Object, "orders", true, false, 1234, args); + + channel.Verify(c => c.ExchangeDeclareAsync( + "orders" + RabbitMqQueueNaming.RetryDeadLetterExchangeSuffix, ExchangeType.Direct, true, false, null, false, false, It.IsAny()), + Times.Once); + channel.Verify(c => c.QueueBindAsync( + "orders", "orders" + RabbitMqQueueNaming.RetryDeadLetterExchangeSuffix, "orders" + RabbitMqQueueNaming.RetryQueueSuffix, null, false, It.IsAny()), + Times.Once); + channel.Verify(c => c.QueueDeclareAsync( + "orders" + RabbitMqQueueNaming.RetryQueueSuffix, + true, + false, + false, + It.Is?>(d => + d != null && + Equals(d[RabbitMqQueueNaming.XDeadLetterExchangeArgument], "orders" + RabbitMqQueueNaming.RetryDeadLetterExchangeSuffix) && + Equals(d[RabbitMqQueueNaming.XMessageTtlArgument], 1234)), + false, + false, + It.IsAny()), + Times.Once); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/RetryOperationCanceledTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/RetryOperationCanceledTests.cs new file mode 100644 index 000000000..592cd7ad0 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/RetryOperationCanceledTests.cs @@ -0,0 +1,62 @@ +using ServiceConnect.Client.RabbitMQ; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public class RetryOperationCanceledTests +{ + [Fact] + public async Task DoAsync_UnrelatedOperationCanceled_PropagatesAfterFirstAttempt() + { + var attempts = 0; + using var unrelatedCts = new CancellationTokenSource(); + unrelatedCts.Cancel(); + + await Assert.ThrowsAsync(async () => + { + await Retry.DoAsync( + action: () => + { + attempts++; + return Task.FromException(new OperationCanceledException(unrelatedCts.Token)); + }, + exceptionAction: _ => Task.CompletedTask, + retryInterval: TimeSpan.FromMilliseconds(1), + retryCount: 4, + cancellationToken: CancellationToken.None); + }); + + Assert.Equal(1, attempts); + } + + [Fact] + public async Task DoAsync_ExceptionActionThrowsOceUnderCancelledToken_PropagatesOce() + { + using var cts = new CancellationTokenSource(); + var initialFailure = new InvalidOperationException("first attempt failed"); + var oceFromCallback = new OperationCanceledException(cts.Token); + + var actionInvocations = 0; + var callbackInvocations = 0; + + Task Action() + { + actionInvocations++; + throw initialFailure; + } + + Task ExceptionAction(Exception ex) + { + callbackInvocations++; + cts.Cancel(); + throw oceFromCallback; + } + + var thrown = await Assert.ThrowsAsync(() => + Retry.DoAsync(Action, ExceptionAction, retryInterval: TimeSpan.Zero, retryCount: 3, cancellationToken: cts.Token)); + + Assert.Same(oceFromCallback, thrown); + Assert.Equal(1, actionInvocations); + Assert.Equal(1, callbackInvocations); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/RetryTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/RetryTests.cs new file mode 100644 index 000000000..07581bfef --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/RetryTests.cs @@ -0,0 +1,229 @@ +using System.Reflection; +using ServiceConnect.Client.RabbitMQ; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public class RetryTests +{ + private static readonly TimeSpan FastInterval = TimeSpan.FromMilliseconds(1); + + [Fact] + public async Task DoAsync_ExecutesActionSuccessfully() + { + var executed = false; + + await Retry.DoAsync(() => { executed = true; return Task.CompletedTask; }, _ => Task.CompletedTask, FastInterval, 3); + + Assert.True(executed); + } + + [Fact] + public async Task DoAsync_RetriesOnFailure() + { + int attempts = 0; + + await Retry.DoAsync( + () => + { + attempts++; + if (attempts < 3) + { + throw new InvalidOperationException("transient"); + } + + return Task.CompletedTask; + }, + _ => Task.CompletedTask, + FastInterval, + 3); + + Assert.Equal(3, attempts); + } + + [Fact] + public async Task DoAsync_ThrowsAggregateException_WhenAllRetriesFail() + { + // retryCount=3 -> total attempts = 4 (initial + 3 retries). + var ex = await Assert.ThrowsAsync(() => + Retry.DoAsync( + () => throw new InvalidOperationException("fail"), + _ => Task.CompletedTask, + FastInterval, + 3)); + + Assert.Equal(4, ex.InnerExceptions.Count); + } + + [Fact] + public async Task DoAsync_CallsExceptionActionOnEachFailure() + { + var exceptionsCaught = new List(); + + // retryCount=3 -> total attempts = 4 (initial + 3 retries). + await Assert.ThrowsAsync(() => + Retry.DoAsync( + () => throw new InvalidOperationException("fail"), + ex => { exceptionsCaught.Add(ex); return Task.CompletedTask; }, + FastInterval, + 3)); + + Assert.Equal(4, exceptionsCaught.Count); + } + + [Fact] + public async Task DoAsync_RethrowsMatchingOperationCanceledException_WithoutCallingExceptionAction() + { + using var cancellationSource = new CancellationTokenSource(); + var cancellationToken = cancellationSource.Token; + var exceptionActionCalls = 0; + + var ex = await Assert.ThrowsAsync(() => + Retry.DoAsync( + () => throw new OperationCanceledException("canceled", cancellationToken), + _ => + { + exceptionActionCalls++; + return Task.CompletedTask; + }, + FastInterval, + 3, + cancellationToken)); + + Assert.Equal(cancellationToken, ex.CancellationToken); + Assert.Equal(0, exceptionActionCalls); + } + + [Fact] + public async Task DoAsync_RethrowsOperationCanceledException_WhenCallerTokenIsCanceledEvenIfExceptionTokenDiffers() + { + using var cancellationSource = new CancellationTokenSource(); + var cancellationToken = cancellationSource.Token; + var otherToken = new CancellationTokenSource().Token; + var exceptionActionCalls = 0; + + var ex = await Assert.ThrowsAsync(() => + Retry.DoAsync( + () => + { + cancellationSource.Cancel(); + throw new OperationCanceledException("canceled", otherToken); + }, + _ => + { + exceptionActionCalls++; + return Task.CompletedTask; + }, + FastInterval, + 3, + cancellationToken)); + + Assert.Equal(otherToken, ex.CancellationToken); + Assert.Equal(0, exceptionActionCalls); + } + + [Fact] + public async Task DoAsyncGeneric_ReturnsValueOnSuccess() + { + var result = await Retry.DoAsync(() => Task.FromResult(42), _ => Task.CompletedTask, FastInterval, 3); + + Assert.Equal(42, result); + } + + [Fact] + public async Task DoAsyncGeneric_RetriesAndReturnsValue() + { + int attempts = 0; + + var result = await Retry.DoAsync( + () => + { + attempts++; + if (attempts < 2) + { + throw new InvalidOperationException("transient"); + } + + return Task.FromResult(attempts); + }, + _ => Task.CompletedTask, + FastInterval, + 3); + + Assert.Equal(2, result); + Assert.Equal(2, attempts); + } + + // Verify the backoff cap prevents double overflow for huge retry counts. + // Math.Pow(2, N) for N > 1023 returns +Infinity which propagates through + // TimeSpan.FromMilliseconds to throw OverflowException. The cap at 52 means + // the raw exponent never exceeds 2^52 (~4.5e15 ms), which the 5-minute ceiling + // clamps to a safe value. + [Theory] + [InlineData(53)] + [InlineData(100)] + [InlineData(1000)] + [InlineData(int.MaxValue)] + public void CalculateDelay_DoesNotOverflow_ForLargeRetryAttempts(int retryAttempt) + { + var calculateDelay = typeof(Retry).GetMethod( + "CalculateDelay", + BindingFlags.NonPublic | BindingFlags.Static)!; + + var result = (TimeSpan)calculateDelay.Invoke(null, [TimeSpan.FromMilliseconds(100), retryAttempt])!; + + // Should be bounded by the 5-minute exponential cap plus a 10% jitter band so the + // jitter survives at the cap (preventing synchronised retry storms). + Assert.True(result <= TimeSpan.FromMinutes(5.5), $"Delay {result} exceeded 5-minute ceiling + 10% jitter for attempt {retryAttempt}"); + Assert.True(result >= TimeSpan.Zero, $"Delay {result} was negative for attempt {retryAttempt}"); + } + + [Fact] + public void CalculateDelay_Cap52_ProducesSameResultAs53() + { + var calculateDelay = typeof(Retry).GetMethod( + "CalculateDelay", + BindingFlags.NonPublic | BindingFlags.Static)!; + + // Attempts 52, 53, 100, and MaxValue should all produce the same exponential + // component (capped), so the only variation is jitter — both should be <= 5 min. + var delay52 = (TimeSpan)calculateDelay.Invoke(null, [TimeSpan.FromMilliseconds(1), 52])!; + var delay53 = (TimeSpan)calculateDelay.Invoke(null, [TimeSpan.FromMilliseconds(1), 53])!; + var delayMax = (TimeSpan)calculateDelay.Invoke(null, [TimeSpan.FromMilliseconds(1), int.MaxValue])!; + + Assert.True(delay52 <= TimeSpan.FromMinutes(5.5)); + Assert.True(delay53 <= TimeSpan.FromMinutes(5.5)); + Assert.True(delayMax <= TimeSpan.FromMinutes(5.5)); + } + + // At the 5-minute exponential cap, jitter must not collapse to zero — every retry + // returning exactly MaxDelayMs would synchronise retry storms after a connection-storm. + // The new jitter (10 % of clamped delay, applied above the cap) keeps the spread + // visible. 100 samples should produce at least a few distinct values. + [Fact] + public void CalculateDelay_AtCap_JitterIsNonZero() + { + var calculateDelay = typeof(Retry).GetMethod( + "CalculateDelay", + BindingFlags.NonPublic | BindingFlags.Static)!; + + var samples = new HashSet(); + for (int i = 0; i < 100; i++) + { + var delay = (TimeSpan)calculateDelay.Invoke(null, [TimeSpan.FromMilliseconds(100), int.MaxValue])!; + samples.Add(delay.Ticks); + } + + // Pre-fix this would collapse to 1 distinct value (the bare cap). Post-fix the 10% + // jitter band gives ~30s of variation. Anything more than 1 distinct sample proves + // the jitter is alive at the cap. + Assert.True(samples.Count > 1, $"Expected jitter at the cap; saw {samples.Count} distinct value(s)."); + + // Every sample must still sit within the cap-plus-10% bound. + var maxAllowed = TimeSpan.FromMinutes(5.5).Ticks; + Assert.All(samples, ticks => Assert.True(ticks <= maxAllowed)); + // And no sample must drop below the cap (jitter only adds, never subtracts). + var minExpected = TimeSpan.FromMinutes(5).Ticks; + Assert.All(samples, ticks => Assert.True(ticks >= minExpected)); + } +} diff --git a/src/ServiceConnect.UnitTests/RabbitMQ/SslConfigurationBuilderTests.cs b/src/ServiceConnect.UnitTests/RabbitMQ/SslConfigurationBuilderTests.cs new file mode 100644 index 000000000..dbe9eaf35 --- /dev/null +++ b/src/ServiceConnect.UnitTests/RabbitMQ/SslConfigurationBuilderTests.cs @@ -0,0 +1,145 @@ +using System.Net.Security; +using System.Security.Authentication; +using System.Security.Cryptography.X509Certificates; +using Microsoft.Extensions.Logging; +using Microsoft.Extensions.Logging.Abstractions; +using Microsoft.Extensions.Logging.Testing; +using Moq; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.RabbitMQ; + +public class SslConfigurationBuilderTests +{ + [Fact] + public void BuildSslOptions_SetsAllProperties() + { + var mock = new Mock(); + mock.Setup(t => t.SslProtocol).Returns(SslProtocols.Tls12); + mock.Setup(t => t.ServerName).Returns("myserver"); + mock.Setup(t => t.CertPath).Returns("/path/to/cert.pem"); + mock.Setup(t => t.CertPassphrase).Returns("secret"); + mock.Setup(t => t.AcceptablePolicyErrors).Returns(SslPolicyErrors.RemoteCertificateNameMismatch); + mock.Setup(t => t.Certs).Returns((X509CertificateCollection?)null); + + var result = SslConfigurationBuilder.BuildSslOptions(mock.Object, NullLogger.Instance); + + Assert.Equal(SslProtocols.Tls12, result.Version); + Assert.Equal("myserver", result.ServerName); + Assert.Equal("/path/to/cert.pem", result.CertPath); + Assert.Equal("secret", result.CertPassphrase); + Assert.Equal(SslPolicyErrors.RemoteCertificateNameMismatch, result.AcceptablePolicyErrors); + } + + [Fact] + public void BuildSslOptions_EnabledIsAlwaysTrue() + { + var mock = new Mock(); + mock.Setup(t => t.SslEnabled).Returns(false); + mock.Setup(t => t.SslProtocol).Returns(SslProtocols.Tls12); + mock.Setup(t => t.ServerName).Returns("localhost"); + + var result = SslConfigurationBuilder.BuildSslOptions(mock.Object, NullLogger.Instance); + + Assert.True(result.Enabled); + } + + [Fact] + public void BuildSslOptions_SetsCertificateCallbacks() + { + LocalCertificateSelectionCallback selectionCallback = (_, _, _, _, _) => null!; + RemoteCertificateValidationCallback validationCallback = (_, _, _, _) => true; + + var mock = new Mock(); + mock.Setup(t => t.ServerName).Returns("localhost"); + mock.Setup(t => t.CertificateSelectionCallback).Returns(selectionCallback); + mock.Setup(t => t.CertificateValidationCallback).Returns(validationCallback); + + var result = SslConfigurationBuilder.BuildSslOptions(mock.Object, NullLogger.Instance); + + Assert.Same(selectionCallback, result.CertificateSelectionCallback); + Assert.Same(validationCallback, result.CertificateValidationCallback); + } + + [Fact] + public void BuildSslOptions_ThrowsWhenServerNameIsNull() + { + var mock = new Mock(); + mock.Setup(t => t.ServerName).Returns((string?)null); + + Assert.Throws(() => SslConfigurationBuilder.BuildSslOptions(mock.Object, NullLogger.Instance)); + } + + [Fact] + public void BuildSslOptions_ThrowsWhenServerNameIsEmpty() + { + var mock = new Mock(); + mock.Setup(t => t.ServerName).Returns(string.Empty); + + Assert.Throws(() => SslConfigurationBuilder.BuildSslOptions(mock.Object, NullLogger.Instance)); + } + + [Fact] + public void BuildSslOptions_SetsCertificateCollection() + { + var certs = new X509CertificateCollection(); + var mock = new Mock(); + mock.Setup(t => t.ServerName).Returns("localhost"); + mock.Setup(t => t.Certs).Returns(certs); + + var result = SslConfigurationBuilder.BuildSslOptions(mock.Object, NullLogger.Instance); + + Assert.Same(certs, result.Certs); + } + + [Fact] + public void BuildSslOptions_NonZeroAcceptablePolicyErrors_LogsWarning() + { + var fakeLogger = new FakeLogger(); + var mock = new Mock(); + mock.Setup(t => t.ServerName).Returns("broker.example.com"); + mock.Setup(t => t.AcceptablePolicyErrors).Returns(SslPolicyErrors.RemoteCertificateChainErrors); + + _ = SslConfigurationBuilder.BuildSslOptions(mock.Object, fakeLogger); + + Assert.Contains(fakeLogger.Collector.GetSnapshot(), + r => r.Level == LogLevel.Warning + && r.Message.Contains("AcceptablePolicyErrors", StringComparison.Ordinal) + && r.Message.Contains("RemoteCertificateChainErrors", StringComparison.Ordinal)); + } + + [Fact] + public void BuildSslOptions_DefaultPolicyErrors_NoWarning() + { + var fakeLogger = new FakeLogger(); + var mock = new Mock(); + mock.Setup(t => t.ServerName).Returns("broker.example.com"); + mock.Setup(t => t.AcceptablePolicyErrors).Returns(SslPolicyErrors.None); + + _ = SslConfigurationBuilder.BuildSslOptions(mock.Object, fakeLogger); + + Assert.DoesNotContain(fakeLogger.Collector.GetSnapshot(), + r => r.Level == LogLevel.Warning); + } + + [Fact] + public void BuildSslOptions_CustomValidationCallback_LogsWarning() + { + var fakeLogger = new FakeLogger(); + static bool AlwaysAccept(object _, System.Security.Cryptography.X509Certificates.X509Certificate? __, System.Security.Cryptography.X509Certificates.X509Chain? ___, SslPolicyErrors ____) => true; + var mock = new Mock(); + mock.Setup(t => t.ServerName).Returns("broker.example.com"); + mock.Setup(t => t.CertificateValidationCallback).Returns(AlwaysAccept); + + _ = SslConfigurationBuilder.BuildSslOptions(mock.Object, fakeLogger); + + Assert.Contains(fakeLogger.Collector.GetSnapshot(), + r => r.Level == LogLevel.Warning + && r.Message.Contains("CertificateValidationCallback", StringComparison.Ordinal)); + } + + /// Placeholder type so FakeLogger has a category. + public sealed class SslConfigurationBuilderTag { } +} diff --git a/src/ServiceConnect.UnitTests/SendMessagePipeline.cs b/src/ServiceConnect.UnitTests/SendMessagePipeline.cs deleted file mode 100644 index c7cff4349..000000000 --- a/src/ServiceConnect.UnitTests/SendMessagePipeline.cs +++ /dev/null @@ -1,155 +0,0 @@ -using Moq; -using Newtonsoft.Json; -using ServiceConnect.Core; -using ServiceConnect.Interfaces; -using ServiceConnect.UnitTests.Aggregator; -using ServiceConnect.UnitTests.Fakes.Messages; -using System; -using System.Collections.Generic; -using System.Text; -using System.Threading.Tasks; -using Xunit; - -namespace ServiceConnect.UnitTests -{ - public class SendMessagePipelineTests - { - private readonly Mock _mockConfiguration; - private readonly Mock _mockContainer; - private readonly Mock _mockProducer; - - public SendMessagePipelineTests() - { - _mockConfiguration = new Mock(); - _mockContainer = new Mock(); - _mockProducer = new Mock(); - - _mockConfiguration.Setup(x => x.GetContainer()).Returns(_mockContainer.Object); - _mockConfiguration.Setup(x => x.GetProducer()).Returns(_mockProducer.Object); - - _mockContainer.Setup(x => x.GetInstance(typeof(Middleware1))).Returns(new Middleware1()); - _mockContainer.Setup(x => x.GetInstance(typeof(Middleware2))).Returns(new Middleware2()); - - _middleware1BeforeExecuted = false; - _middleware1AfterExecuted = false; - _middleware2BeforeExecuted = false; - _middleware2AfterExecuted = false; - } - - [Fact] - public void ShouldExecuteMiddlewareWhenSendingMessageWithEndpoint() - { - _mockConfiguration.SetupGet(x => x.SendMessageMiddleware).Returns(new List { - typeof(Middleware1), - typeof(Middleware2) - }); - - var pipeline = new SendMessagePipeline(_mockConfiguration.Object); - var bytes = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(new MiddlewareMessage(Guid.NewGuid()))); - var headers = new Dictionary(); - pipeline.ExecuteSendMessagePipeline(typeof(MiddlewareMessage), bytes, headers, "Test"); - - Assert.True(_middleware1BeforeExecuted); - Assert.True(_middleware1AfterExecuted); - Assert.True(_middleware2BeforeExecuted); - Assert.True(_middleware2AfterExecuted); - - _mockProducer.Verify(x => x.Send("Test", typeof(MiddlewareMessage), bytes, headers), Times.Once); - } - - [Fact] - public void ShouldExecuteMiddlewareWhenSendingMessageWithoutEndpoint() - { - _mockConfiguration.SetupGet(x => x.SendMessageMiddleware).Returns(new List { - typeof(Middleware1), - typeof(Middleware2) - }); - - var pipeline = new SendMessagePipeline(_mockConfiguration.Object); - var bytes = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(new MiddlewareMessage(Guid.NewGuid()))); - pipeline.ExecuteSendMessagePipeline(typeof(MiddlewareMessage), bytes); - - Assert.True(_middleware1BeforeExecuted); - Assert.True(_middleware1AfterExecuted); - Assert.True(_middleware2BeforeExecuted); - Assert.True(_middleware2AfterExecuted); - - _mockProducer.Verify(x => x.Send(typeof(MiddlewareMessage), bytes, null), Times.Once); - } - - [Fact] - public void ShouldExecuteMiddlewareWhenPublishingMessage() - { - _mockConfiguration.SetupGet(x => x.SendMessageMiddleware).Returns(new List { - typeof(Middleware1), - typeof(Middleware2) - }); - - var pipeline = new SendMessagePipeline(_mockConfiguration.Object); - var bytes = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(new MiddlewareMessage(Guid.NewGuid()))); - pipeline.ExecutePublishMessagePipeline(typeof(MiddlewareMessage), bytes); - - Assert.True(_middleware1BeforeExecuted); - Assert.True(_middleware1AfterExecuted); - Assert.True(_middleware2BeforeExecuted); - Assert.True(_middleware2AfterExecuted); - - _mockProducer.Verify(x => x.Publish(typeof(MiddlewareMessage), bytes, null), Times.Once); - } - - [Fact] - public void ShouldSendMessageWhenNoMiddlewareDefined() - { - _mockConfiguration.SetupGet(x => x.SendMessageMiddleware).Returns(new List()); - - var pipeline = new SendMessagePipeline(_mockConfiguration.Object); - var bytes = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(new MiddlewareMessage(Guid.NewGuid()))); - pipeline.ExecutePublishMessagePipeline(typeof(MiddlewareMessage), bytes); - - Assert.False(_middleware1BeforeExecuted); - Assert.False(_middleware1AfterExecuted); - Assert.False(_middleware2BeforeExecuted); - Assert.False(_middleware2AfterExecuted); - - _mockProducer.Verify(x => x.Publish(typeof(MiddlewareMessage), bytes, null), Times.Once); - } - - private static bool _middleware1BeforeExecuted = false; - private static bool _middleware1AfterExecuted = false; - private static bool _middleware2BeforeExecuted = false; - private static bool _middleware2AfterExecuted = false; - - - public class Middleware1 : ISendMessageMiddleware - { - public SendMessageDelegate Next { get; set; } - - public void Process(Type typeObject, byte[] messageBytes, Dictionary headers = null, string endPoint = null) - { - _middleware1BeforeExecuted = true; - Next(typeObject, messageBytes, headers, endPoint); - _middleware1AfterExecuted = true; - } - } - - public class Middleware2 : ISendMessageMiddleware - { - public SendMessageDelegate Next { get; set; } - - public void Process(Type typeObject, byte[] messageBytes, Dictionary headers = null, string endPoint = null) - { - _middleware2BeforeExecuted = true; - Next(typeObject, messageBytes, headers, endPoint); - _middleware2AfterExecuted = true; - } - } - - - public class MiddlewareMessage : Message - { - public MiddlewareMessage(Guid correlationId) : base(correlationId) - { - } - } - } -} diff --git a/src/ServiceConnect.UnitTests/SerialConcurrencyCollection.cs b/src/ServiceConnect.UnitTests/SerialConcurrencyCollection.cs new file mode 100644 index 000000000..5bd9f23d9 --- /dev/null +++ b/src/ServiceConnect.UnitTests/SerialConcurrencyCollection.cs @@ -0,0 +1,16 @@ +using Xunit; + +namespace ServiceConnect.UnitTests; + +/// +/// xUnit collection for tests with inherent timing-sensitivity (Barrier convergence, +/// real-timer fires, bounded-time assertions). Tests in this collection run +/// serially with each other so thread-pool contention from parallel tests does +/// not narrow their timing windows. Other test classes (the bulk of the suite) +/// continue to run in parallel. +/// +[CollectionDefinition(Name, DisableParallelization = true)] +public sealed class SerialConcurrencyCollection +{ + public const string Name = "SerialConcurrency"; +} diff --git a/src/ServiceConnect.UnitTests/ServiceConnect.UnitTests.csproj b/src/ServiceConnect.UnitTests/ServiceConnect.UnitTests.csproj index 2542d54d3..3f75c08bc 100644 --- a/src/ServiceConnect.UnitTests/ServiceConnect.UnitTests.csproj +++ b/src/ServiceConnect.UnitTests/ServiceConnect.UnitTests.csproj @@ -1,42 +1,44 @@ - - - - net6.0 - ServiceConnect.UnitTests - ServiceConnect.UnitTests - true - false - false - false - 5.0.0 - - - - - - - - - - - - - - - - - - - - - - all - runtime; build; native; contentfiles; analyzers - - - - - - - + + + + net10.0 + enable + enable + false + + false + + + + + + + + + + + + + runtime; build; native; contentfiles; analyzers; buildtransitive + all + + + + + + + + + + + + diff --git a/src/ServiceConnect.UnitTests/Services/AsyncExceptionHandlerTests.cs b/src/ServiceConnect.UnitTests/Services/AsyncExceptionHandlerTests.cs new file mode 100644 index 000000000..b3b20411f --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/AsyncExceptionHandlerTests.cs @@ -0,0 +1,48 @@ +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Configuration; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +public class AsyncExceptionHandlerTests +{ + [Fact] + public async Task ExceptionHandler_AsyncSignature_AwaitsHandler() + { + var observed = new List(); + var cfg = new BusConfiguration + { + ExceptionHandler = async (ex, ct) => + { + await Task.Yield(); + observed.Add(ex); + } + }; + + // Act + var failure = new InvalidOperationException("test-failure"); + await cfg.ExceptionHandler!.Invoke(failure, CancellationToken.None); + + Assert.Single(observed); + Assert.Same(failure, observed[0]); + } + + [Fact] + public async Task ExceptionHandler_SyncShim_RunsAndReturnsCompletedValueTask() + { + // Compile-time and runtime regression guard for the sync-shim pattern + // documented on IBusConfiguration.ExceptionHandler: a synchronous body can be + // wrapped to satisfy the (Exception, CancellationToken) → ValueTask signature. + var cfg = new BusConfiguration(); + var ran = false; + cfg.ExceptionHandler = (ex, _) => + { + ran = true; + return ValueTask.CompletedTask; + }; + + await cfg.ExceptionHandler!.Invoke(new Exception(), CancellationToken.None); + + Assert.True(ran, "Sync shim must execute the wrapped action."); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/BusHostedServiceTests.cs b/src/ServiceConnect.UnitTests/Services/BusHostedServiceTests.cs new file mode 100644 index 000000000..e7557ac30 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/BusHostedServiceTests.cs @@ -0,0 +1,261 @@ +using Microsoft.Extensions.Logging; +using Moq; +using ServiceConnect.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +public class BusHostedServiceTests +{ + private readonly Mock _mockBus = new(); + private readonly Mock _mockConfig = new(); + private readonly Mock _mockTransport = new(); + private readonly Mock> _mockLogger = new(); + + private ILogger Logger => _mockLogger.Object; + + private BusHostedService CreateSut() + { + // Default transport: TLS on against loopback so no plaintext warning fires in these tests. + _mockTransport.SetupGet(t => t.SslEnabled).Returns(true); + _mockTransport.SetupGet(t => t.Host).Returns("localhost"); + _mockTransport.SetupGet(t => t.SuppressPlaintextWarning).Returns(false); + // These tests exercise the auto-start / replay / shutdown branches of BusHostedService + // without injecting a real IProducer mock; opt out of the producer presence check so + // those branches are reachable. Producer-presence is covered by + // BusHostedServiceMissingProducerTests in the BusInterface namespace. + _mockConfig.SetupGet(c => c.AllowMissingProducer).Returns(true); + return new(_mockBus.Object, _mockConfig.Object, _mockTransport.Object, Logger); + } + + [Fact] + public async Task StartAsync_ValidateReplyDestinationsDisabled_LogsWarning() + { + _mockConfig.Setup(c => c.AutoStartConsuming).Returns(false); + _mockConfig.Setup(c => c.ValidateReplyDestinations).Returns(false); + + var sut = CreateSut(); + await sut.StartAsync(CancellationToken.None); + + _mockLogger.Verify( + x => x.Log( + LogLevel.Warning, + It.IsAny(), + It.Is((v, _) => v.ToString()!.Contains("ValidateReplyDestinations is disabled")), + null, + It.IsAny>()), + Times.Once); + } + + [Fact] + public async Task StartAsync_ValidateReplyDestinationsEnabled_DoesNotLogWarning() + { + _mockConfig.Setup(c => c.AutoStartConsuming).Returns(false); + _mockConfig.Setup(c => c.ValidateReplyDestinations).Returns(true); + + var sut = CreateSut(); + await sut.StartAsync(CancellationToken.None); + + _mockLogger.Verify( + x => x.Log( + LogLevel.Warning, + It.IsAny(), + It.Is((v, _) => v.ToString()!.Contains("ValidateReplyDestinations is disabled")), + null, + It.IsAny>()), + Times.Never); + } + + [Fact] + public async Task StartAsync_AutoStartTrue_CallsStartConsuming() + { + _mockConfig.Setup(c => c.AutoStartConsuming).Returns(true); + _mockConfig.Setup(c => c.ValidateReplyDestinations).Returns(true); + _mockBus.Setup(b => b.StartConsumingAsync()).Returns(Task.CompletedTask); + + var sut = CreateSut(); + await sut.StartAsync(CancellationToken.None); + + _mockBus.Verify(b => b.StartConsumingAsync(), Times.Once); + } + + [Fact] + public async Task StartAsync_AutoStartFalse_DoesNotCallStartConsuming() + { + _mockConfig.Setup(c => c.AutoStartConsuming).Returns(false); + + var sut = CreateSut(); + await sut.StartAsync(CancellationToken.None); + + _mockBus.Verify(b => b.StartConsumingAsync(), Times.Never); + } + + [Fact] + public async Task StartAsync_NoConsumerRegistered_PropagatesException() + { + // The hosted service must surface startup failures to the host rather + // than log a warning and silently report success. + _mockConfig.Setup(c => c.AutoStartConsuming).Returns(true); + _mockBus.Setup(b => b.StartConsumingAsync()) + .ThrowsAsync(new InvalidOperationException("No consumer registered.")); + + var sut = CreateSut(); + await Assert.ThrowsAsync(() => sut.StartAsync(CancellationToken.None)); + } + + [Fact] + public async Task StopAsync_CallsStopConsumingAsync() + { + _mockBus.Setup(b => b.StopConsumingAsync()).Returns(Task.CompletedTask); + var sut = CreateSut(); + await sut.StopAsync(CancellationToken.None); + + _mockBus.Verify(b => b.StopConsumingAsync(), Times.Once); + } + + [Fact] + public async Task StartAsync_AfterStop_ThrowsInvalidOperationException() + { + // The bus permanently latches _stopped after StopConsumingAsync. A second + // StartAsync on the same instance must propagate the InvalidOperationException + // that IBus.StartConsumingAsync throws rather than swallowing it. + _mockConfig.Setup(c => c.AutoStartConsuming).Returns(true); + _mockConfig.Setup(c => c.ValidateReplyDestinations).Returns(true); + _mockBus.Setup(b => b.StartConsumingAsync(It.IsAny())).Returns(Task.CompletedTask); + _mockBus.Setup(b => b.StopConsumingAsync(It.IsAny())).Returns(Task.CompletedTask); + + var sut = CreateSut(); + await sut.StartAsync(CancellationToken.None); + await sut.StopAsync(CancellationToken.None); + + // Simulate the latched-stopped state: a fresh StartConsumingAsync call after stop throws. + _mockBus.Setup(b => b.StartConsumingAsync(It.IsAny())) + .ThrowsAsync(new InvalidOperationException("Bus has been stopped and cannot be restarted.")); + + await Assert.ThrowsAsync(() => sut.StartAsync(CancellationToken.None)); + } + + [Fact] + public async Task StopAsync_ConsumerHangs_LogsAndReturnsAfterGracefulShutdownTimeout() + { + // A non-cooperative IConsumer swallows the cancellation and never completes. + // StopAsync must respect GracefulShutdownTimeoutMilliseconds and return once + // the grace window elapses, logging a warning rather than blocking indefinitely. + var transport = new TransportConfiguration { GracefulShutdownTimeoutMilliseconds = 250 }; + transport.Freeze(); + + CancellationToken capturedCt = default; + var hangingBus = new Mock(); + hangingBus.Setup(b => b.StopConsumingAsync(It.IsAny())) + .Callback((CancellationToken ct) => capturedCt = ct) + .Returns(async (CancellationToken ct) => + { + try { await Task.Delay(Timeout.Infinite, ct).ConfigureAwait(false); } + catch (OperationCanceledException) { /* swallow to mimic non-cooperative consumer */ } + }); + + var mockLogger = new Mock>(); + var svc = new BusHostedService(hangingBus.Object, _mockConfig.Object, transport, mockLogger.Object); + + var sw = System.Diagnostics.Stopwatch.StartNew(); + await svc.StopAsync(CancellationToken.None); + sw.Stop(); + + Assert.InRange(sw.ElapsedMilliseconds, 200, 1500); + mockLogger.Verify( + x => x.Log( + LogLevel.Warning, + It.IsAny(), + It.Is((v, _) => v.ToString()!.Contains("GracefulShutdownTimeout", StringComparison.OrdinalIgnoreCase)), + null, + It.IsAny>()), + Times.Once); + // After the grace window, the linked CTS passed to the mock should have been cancelled. + Assert.True(capturedCt.IsCancellationRequested); + } + + [Fact] + public async Task StopAsync_OuterCtCancelled_DoesNotLogGraceWarning() + { + // When the host's outer CT fires (container kill, operator Ctrl+C), StopAsync must + // not emit a "grace exceeded" warning — the cancellation is external, not timeout. + var transport = new TransportConfiguration { GracefulShutdownTimeoutMilliseconds = 5000 }; + transport.Freeze(); + + var hangingBus = new Mock(); + hangingBus.Setup(b => b.StopConsumingAsync(It.IsAny())) + .Returns(async (CancellationToken ct) => + { + await Task.Delay(Timeout.Infinite, ct).ConfigureAwait(false); + }); + + var mockLogger = new Mock>(); + var svc = new BusHostedService(hangingBus.Object, _mockConfig.Object, transport, mockLogger.Object); + + using var outerCts = new CancellationTokenSource(200); // host kill-CT fires after 200ms; grace is 5s + await Assert.ThrowsAnyAsync(() => svc.StopAsync(outerCts.Token)); + + // No "grace exceeded" warning should be logged — the cancellation is the outer host CT, not grace. + mockLogger.Verify( + x => x.Log( + LogLevel.Warning, + It.IsAny(), + It.Is((v, _) => v.ToString()!.Contains("GracefulShutdownTimeout", StringComparison.OrdinalIgnoreCase)), + It.IsAny(), + It.IsAny>()), + Times.Never); + } + + [Fact] + public async Task StopAsync_GraceMsZero_DelegatesDirectlyToBusWithoutTimeout() + { + // GracefulShutdownTimeoutMilliseconds=0 bypasses the WhenAny race entirely; + // the bus token is the host's outer CT with no linked grace CTS. + var transport = new TransportConfiguration { GracefulShutdownTimeoutMilliseconds = 0 }; + transport.Freeze(); + + var cooperativeBus = new Mock(); + cooperativeBus.Setup(b => b.StopConsumingAsync(It.IsAny())) + .Returns(Task.CompletedTask); + + var mockLogger = new Mock>(); + var svc = new BusHostedService(cooperativeBus.Object, _mockConfig.Object, transport, mockLogger.Object); + + await svc.StopAsync(CancellationToken.None); + + cooperativeBus.Verify(b => b.StopConsumingAsync(It.IsAny()), Times.Once); + } + + [Fact] + public async Task StopAsync_CooperativeBusInsideGraceWindow_AwaitsWithoutWarning() + { + // A cooperative bus that finishes within the grace window must not emit a warning + // and must not take longer than the grace window. + var transport = new TransportConfiguration { GracefulShutdownTimeoutMilliseconds = 5000 }; + transport.Freeze(); + + var cooperativeBus = new Mock(); + cooperativeBus.Setup(b => b.StopConsumingAsync(It.IsAny())) + .Returns(Task.Delay(50)); + + var mockLogger = new Mock>(); + var svc = new BusHostedService(cooperativeBus.Object, _mockConfig.Object, transport, mockLogger.Object); + + var sw = System.Diagnostics.Stopwatch.StartNew(); + await svc.StopAsync(CancellationToken.None); + sw.Stop(); + + Assert.InRange(sw.ElapsedMilliseconds, 30, 500); + mockLogger.Verify( + x => x.Log( + LogLevel.Warning, + It.IsAny(), + It.IsAny(), + It.IsAny(), + It.IsAny>()), + Times.Never); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/ConsumeContextPoolConcurrencyTests.cs b/src/ServiceConnect.UnitTests/Services/ConsumeContextPoolConcurrencyTests.cs new file mode 100644 index 000000000..8df9e298f --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/ConsumeContextPoolConcurrencyTests.cs @@ -0,0 +1,188 @@ +using System; +using System.Collections.Concurrent; +using System.Collections.Generic; +using System.Linq; +using System.Threading; +using System.Threading.Tasks; +using Moq; +using ServiceConnect.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +/// +/// Concurrency exercises for the pooled . The pool +/// is hit on every consumed message; a rent/return bug (lost token, header bleed, +/// stale-handle access) only surfaces under sustained parallelism. +/// +public class ConsumeContextPoolConcurrencyTests +{ + private static readonly IQueueConfiguration QueueConfig = new QueueConfiguration + { + QueueName = "q", + ErrorQueueName = "q.errors", + AuditQueueName = "q.audit" + }; + + private static readonly IBusConfiguration BusConfig = new BusConfiguration(); + + private static IBus Bus => new Mock().Object; + + [Fact] + public async Task ParallelRentAndRelease_ManyIterations_NoExceptionsAndPoolBounded() + { + const int workerCount = 32; + const int iterationsPerWorker = 200; + + var pool = new ConsumeContextPool(); + + var workers = Enumerable.Range(0, workerCount).Select(workerIdx => Task.Run(() => + { + for (var i = 0; i < iterationsPerWorker; i++) + { + var headers = new Dictionary(StringComparer.Ordinal); + var handle = pool.Rent(Bus, headers, QueueConfig, BusConfig, null, CancellationToken.None); + + // Touch each accessor to drive the EnsureActive token check on the hot path. + var bus = handle.Bus; + var hdrs = handle.Headers; + var corr = handle.CorrelationId; + var msgId = handle.MessageId; + _ = (bus, hdrs, corr, msgId, workerIdx); + + handle.Release(); + } + })).ToArray(); + + var allDone = Task.WhenAll(workers); + var ex = await Record.ExceptionAsync(() => allDone); + Assert.Null(ex); + } + + [Fact] + public void StaleHandle_AccessAfterRelease_Throws() + { + var pool = new ConsumeContextPool(); + var handle = pool.Rent(Bus, new Dictionary(StringComparer.Ordinal), + QueueConfig, BusConfig, null, CancellationToken.None); + + handle.Release(); + + Assert.Throws(() => _ = handle.Bus); + Assert.Throws(() => _ = handle.Headers); + Assert.Throws(() => _ = handle.CorrelationId); + Assert.Throws(() => _ = handle.MessageId); + } + + [Fact] + public async Task ParallelRentals_ObserveTheirOwnHeaders_NoBleedBetweenRenters() + { + // Each rental sets its own MessageId header. Under the rent-token guard, + // a rental MUST observe only the value supplied at its own Initialize call, + // even when other rentals are concurrently churning the pool. + const int workerCount = 16; + const int iterationsPerWorker = 300; + + var pool = new ConsumeContextPool(); + var mismatches = 0; + + var workers = Enumerable.Range(0, workerCount).Select(workerId => Task.Run(() => + { + for (var i = 0; i < iterationsPerWorker; i++) + { + var expected = $"w{workerId}-i{i}"; + var headers = new Dictionary(StringComparer.Ordinal) + { + [HeaderKeys.MessageId] = expected + }; + + var handle = pool.Rent(Bus, headers, QueueConfig, BusConfig, null, CancellationToken.None); + try + { + if (!string.Equals(handle.MessageId, expected, StringComparison.Ordinal)) + { + Interlocked.Increment(ref mismatches); + } + } + finally + { + handle.Release(); + } + } + })).ToArray(); + + await Task.WhenAll(workers); + + Assert.Equal(0, mismatches); + } + + [Fact] + public void RentReleaseRent_OldHandle_ThrowsAfterReuse() + { + // ConcurrentBag may hand the same backing PooledConsumeContext back to the + // next rental. The captured token on the first RentalHandle must reject + // access after the instance has been re-Initialize'd for the second rental. + var pool = new ConsumeContextPool(); + + var firstHandle = pool.Rent(Bus, new Dictionary { [HeaderKeys.MessageId] = "first" }, + QueueConfig, BusConfig, null, CancellationToken.None); + Assert.Equal("first", firstHandle.MessageId); + firstHandle.Release(); + + var secondHandle = pool.Rent(Bus, new Dictionary { [HeaderKeys.MessageId] = "second" }, + QueueConfig, BusConfig, null, CancellationToken.None); + try + { + // The first handle's snapshot is now stale even if the same instance was reused. + Assert.Throws(() => _ = firstHandle.MessageId); + Assert.Equal("second", secondHandle.MessageId); + } + finally + { + secondHandle.Release(); + } + } + + [Fact] + public async Task SustainedBurst_PoolDoesNotGrowUnbounded() + { + // The pool caps itself at MaxPoolSize (512). Under a burst that briefly holds + // far more handles than the cap, excess instances must be dropped to GC rather + // than retained — otherwise rent/return would slowly leak under sustained load. + const int concurrentRentals = 2_000; + + var pool = new ConsumeContextPool(); + var handles = new ConsumeContextPool.RentalHandle[concurrentRentals]; + + await Task.Run(() => + { + Parallel.For(0, concurrentRentals, i => + { + handles[i] = pool.Rent(Bus, new Dictionary(StringComparer.Ordinal), + QueueConfig, BusConfig, null, CancellationToken.None); + }); + }); + + // Release every rental, then confirm each release succeeded by accessing + // through stale handles — all must throw, proving Release bumped the token. + Parallel.For(0, concurrentRentals, i => handles[i].Release()); + + var staleAccessThrows = 0; + Parallel.For(0, concurrentRentals, i => + { + try + { + _ = handles[i].Bus; + } + catch (InvalidOperationException) + { + Interlocked.Increment(ref staleAccessThrows); + } + }); + + Assert.Equal(concurrentRentals, staleAccessThrows); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/ConsumeContextPoolReleaseIdempotencyTests.cs b/src/ServiceConnect.UnitTests/Services/ConsumeContextPoolReleaseIdempotencyTests.cs new file mode 100644 index 000000000..f4933c2de --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/ConsumeContextPoolReleaseIdempotencyTests.cs @@ -0,0 +1,82 @@ +using System.Reflection; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +public class ConsumeContextPoolReleaseIdempotencyTests +{ + [Fact] + public void DoubleRelease_DoesNotPushInstanceToPoolTwice() + { + // A defensive double-Release must not push the same instance into _pool twice. + // Pre-fix Release was unconditional; two Releases produced two pool entries + // and two concurrent Rents could hand the same underlying instance to two + // handlers (use-after-rent corruption). + var pool = new ConsumeContextPool(); + var bus = new Mock().Object; + var queueConfig = new Mock().Object; + var busConfig = new Mock().Object; + var headers = new Dictionary(); + var context = pool.Rent(bus, headers, queueConfig, busConfig, null, CancellationToken.None); + + // First Release: instance returns to pool. + context.Release(); + + // Second Release: must be a no-op for pooling. The rent-token still bumps + // (existing semantics), but _owner.Return is NOT called a second time. + context.Release(); + + // Probe the pool's internal _pool ConcurrentBag. With the idempotency guard, + // it has exactly one entry; without the guard it would have two. + var poolField = typeof(ConsumeContextPool).GetField("_pool", + BindingFlags.NonPublic | BindingFlags.Instance)!; + var bag = (System.Collections.Concurrent.ConcurrentBag)poolField.GetValue(pool)!; + + Assert.Single(bag); + } + + [Fact] + public void RentReleaseRentReleaseCycle_PoolHasOneEntry() + { + // Sanity: the standard rent/release/rent/release cycle pools the same single + // instance — _pooled is reset to 0 on Initialize so the second Release fires. + var pool = new ConsumeContextPool(); + var bus = new Mock().Object; + var queueConfig = new Mock().Object; + var busConfig = new Mock().Object; + var headers = new Dictionary(); + + var c1 = pool.Rent(bus, headers, queueConfig, busConfig, null, CancellationToken.None); + c1.Release(); + var c2 = pool.Rent(bus, headers, queueConfig, busConfig, null, CancellationToken.None); + c2.Release(); + + var poolField = typeof(ConsumeContextPool).GetField("_pool", + BindingFlags.NonPublic | BindingFlags.Instance)!; + var bag = (System.Collections.Concurrent.ConcurrentBag)poolField.GetValue(pool)!; + + Assert.Single(bag); + } + + [Fact] + public void StaleRentalHandle_StillThrowsAfterDoubleRelease() + { + // The rent-token semantics are unchanged: a stale RentalHandle reference + // throws InvalidOperationException on access after Release, even after a + // double-Release. + var pool = new ConsumeContextPool(); + var bus = new Mock().Object; + var queueConfig = new Mock().Object; + var busConfig = new Mock().Object; + + var context = pool.Rent(bus, new Dictionary(), queueConfig, busConfig, null, CancellationToken.None); + context.Release(); + context.Release(); // double-release + + Assert.Throws(() => _ = context.Headers); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/ConsumeContextPoolTests.cs b/src/ServiceConnect.UnitTests/Services/ConsumeContextPoolTests.cs new file mode 100644 index 000000000..98cec4f01 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/ConsumeContextPoolTests.cs @@ -0,0 +1,151 @@ +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Interfaces.Options; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +public class ConsumeContextPoolTests +{ + [Fact] + public void EnsureActive_RejectsAccessAfterReleaseAndReuse() + { + // Audit claim: after Release → Rent → Initialize, a stale IConsumeContext reference + // from the prior rent still passes EnsureActive() because _activeToken lives on the + // pooled instance, which gets its token bumped back to match the new _rentToken. + // + // Expected behaviour: the stale reference's guard check must throw + // (ObjectDisposedException or InvalidOperationException) so the caller can never + // read headers/bus belonging to the NEXT message. + + var pool = new ConsumeContextPool(); + var bus = new Mock().Object; + var queueConfig = new Mock().Object; + var busConfig = new Mock().Object; + + // Rent a context, initialize it with message A's data, capture the reference. + var headersA = new Dictionary { ["msg"] = "A" }; + var contextA = pool.Rent(bus, headersA, queueConfig, busConfig, null, CancellationToken.None); + + // Caller finishes with A; pool reclaims. + contextA.Release(); + + // A new message arrives. Pool hands out the same underlying instance. + var headersB = new Dictionary { ["msg"] = "B" }; + var contextB = pool.Rent(bus, headersB, queueConfig, busConfig, null, CancellationToken.None); + + // Keep contextB alive so the compiler doesn't optimize away the second Rent. + _ = contextB; + + // The stale reference contextA must NOT be allowed to read headers — otherwise it + // leaks message B's headers to a caller that thinks it's still looking at A. + Assert.Throws(() => _ = contextA.Headers); + } + + [Fact] + public void Rent_InitializesAndAllowsAccessBeforeRelease() + { + // Verify that a freshly rented context exposes its initialisation data without + // throwing — i.e. EnsureActive does not fire for the original holder. + + var pool = new ConsumeContextPool(); + var bus = new Mock().Object; + var queueConfig = new Mock().Object; + var busConfig = new Mock().Object; + + var headers = new Dictionary + { + ["key"] = "value", + [HeaderKeys.MessageId] = "msg-1" + }; + var context = pool.Rent(bus, headers, queueConfig, busConfig, null, CancellationToken.None); + + // All EnsureActive-gated properties must be readable before Release. + var ex = Record.Exception(() => + { + _ = context.Headers; + _ = context.Bus; + _ = context.CancellationToken; + _ = context.MessageId; + _ = context.CorrelationId; + }); + Assert.Null(ex); + + // Headers should reflect the initialised data. + Assert.True(context.Headers.ContainsKey("key")); + Assert.Equal("value", context.Headers["key"]); + + // After release the context must be invalidated. + context.Release(); + Assert.Throws(() => _ = context.Headers); + } + + [Fact] + public void MessageId_And_CorrelationId_ReturnSameValueOnSubsequentReads() + { + // Verifies that the volatile-flag cache: repeated reads of MessageId and CorrelationId + // return the same decoded value and don't re-parse the header on each access. + + var msgId = "test-msg-id-123"; + var corrId = Guid.NewGuid(); + var pool = new ConsumeContextPool(); + var bus = new Mock().Object; + var queueConfig = new Mock().Object; + var busConfig = new Mock().Object; + + var headers = new Dictionary + { + [HeaderKeys.MessageId] = System.Text.Encoding.UTF8.GetBytes(msgId), + [HeaderKeys.CorrelationId] = System.Text.Encoding.UTF8.GetBytes(corrId.ToString()), + }; + var context = pool.Rent(bus, headers, queueConfig, busConfig, null, CancellationToken.None); + + var firstMessageId = context.MessageId; + var secondMessageId = context.MessageId; + var firstCorrelationId = context.CorrelationId; + var secondCorrelationId = context.CorrelationId; + + Assert.Equal(msgId, firstMessageId); + Assert.Equal(firstMessageId, secondMessageId); + Assert.Equal(corrId, firstCorrelationId); + Assert.Equal(firstCorrelationId, secondCorrelationId); + + context.Release(); + } + + [Fact] + public void MessageId_And_CorrelationId_ResetBetweenRentals() + { + // Verifies that cached MessageId / CorrelationId from a previous rental are not + // visible after Release + re-Rent with different headers. + + var pool = new ConsumeContextPool(); + var bus = new Mock().Object; + var queueConfig = new Mock().Object; + var busConfig = new Mock().Object; + + var firstMsgId = "first-msg"; + var firstCorrId = Guid.NewGuid(); + var headersA = new Dictionary + { + [HeaderKeys.MessageId] = System.Text.Encoding.UTF8.GetBytes(firstMsgId), + [HeaderKeys.CorrelationId] = System.Text.Encoding.UTF8.GetBytes(firstCorrId.ToString()), + }; + var contextA = pool.Rent(bus, headersA, queueConfig, busConfig, null, CancellationToken.None); + // Force caching on first rental. + _ = contextA.MessageId; + _ = contextA.CorrelationId; + contextA.Release(); + + // Second rental has different (empty) headers. + var headersB = new Dictionary(); + var contextB = pool.Rent(bus, headersB, queueConfig, busConfig, null, CancellationToken.None); + + Assert.Null(contextB.MessageId); + Assert.Equal(Guid.Empty, contextB.CorrelationId); + + contextB.Release(); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/ConsumeContextStrictReplyValidationTests.cs b/src/ServiceConnect.UnitTests/Services/ConsumeContextStrictReplyValidationTests.cs new file mode 100644 index 000000000..47dbf78eb --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/ConsumeContextStrictReplyValidationTests.cs @@ -0,0 +1,220 @@ +using System; +using System.Collections.Generic; +using System.Linq; +using System.Threading.Tasks; +using Moq; +using ServiceConnect.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Interfaces.Options; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +// The legacy fallback inside IsTrustedRequestReplyEnvelope trusts header fields that +// any external producer aware of our queue name can fabricate. Strict mode disables +// that fallback; the tracked-request path remains the strong primary check. +public class ConsumeContextStrictReplyValidationTests +{ + private readonly Mock _mockBus = new(); + private readonly TestReplyStatusRequestReplyManager _replyStatusRequestReplyManager = new(); + private readonly IQueueConfiguration _queueConfig; + + public ConsumeContextStrictReplyValidationTests() + { + _mockBus + .Setup(b => b.SendAsync(It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + _queueConfig = new QueueConfiguration + { + QueueName = "my-queue", + ErrorQueueName = "errors", + AuditQueueName = "audit" + }; + } + + [Fact] + public void IsTrustedRequestReplyEnvelope_FallbackEnvelope_TrustedInLaxMode_PreservesLegacyBehaviour() + { + var headers = BuildFallbackEnvelopeHeaders(); + var busConfig = new BusConfiguration { StrictReplyValidation = false }; + + Assert.True(ConsumeContext.IsTrustedRequestReplyEnvelope( + headers, _queueConfig, _replyStatusRequestReplyManager, busConfig)); + } + + [Fact] + public void IsTrustedRequestReplyEnvelope_FallbackEnvelope_RejectedInStrictMode() + { + var headers = BuildFallbackEnvelopeHeaders(); + var busConfig = new BusConfiguration { StrictReplyValidation = true }; + + Assert.False(ConsumeContext.IsTrustedRequestReplyEnvelope( + headers, _queueConfig, _replyStatusRequestReplyManager, busConfig)); + } + + [Fact] + public void IsTrustedRequestReplyEnvelope_TrackedRequest_AlwaysTrusted_RegardlessOfStrictMode() + { + var requestMessageId = Guid.NewGuid().ToString(); + var headers = new Dictionary + { + [HeaderKeys.RequestMessageId] = requestMessageId, + [HeaderKeys.SourceAddress] = "another-bus-queue", + [HeaderKeys.MessageId] = Guid.NewGuid().ToString(), + [HeaderKeys.DestinationAddress] = "my-queue" + }; + _replyStatusRequestReplyManager.TrackedRequests.Add(requestMessageId); + + Assert.True(ConsumeContext.IsTrustedRequestReplyEnvelope( + headers, _queueConfig, _replyStatusRequestReplyManager, + new BusConfiguration { StrictReplyValidation = false })); + Assert.True(ConsumeContext.IsTrustedRequestReplyEnvelope( + headers, _queueConfig, _replyStatusRequestReplyManager, + new BusConfiguration { StrictReplyValidation = true })); + } + + [Fact] + public void IsTrustedRequestReplyEnvelope_NoRequestMessageId_RejectedInBothModes() + { + var headers = new Dictionary(); + + Assert.False(ConsumeContext.IsTrustedRequestReplyEnvelope( + headers, _queueConfig, _replyStatusRequestReplyManager, + new BusConfiguration { StrictReplyValidation = false })); + Assert.False(ConsumeContext.IsTrustedRequestReplyEnvelope( + headers, _queueConfig, _replyStatusRequestReplyManager, + new BusConfiguration { StrictReplyValidation = true })); + } + + [Fact] + public async Task ReplyAsync_FallbackEnvelope_RejectedInStrictMode_ThrowsForUnknownQueue() + { + var headers = BuildFallbackEnvelopeHeaders(); + // Source is not in any queue mapping, so without the fallback we fall through to + // the IsKnownQueue check and reject. + var busConfig = new BusConfiguration { StrictReplyValidation = true }; + var context = new ConsumeContext( + _mockBus.Object, + headers, + _queueConfig, + busConfig, + _replyStatusRequestReplyManager, + default); + + var reply = new ConsumeContextStrictReply(Guid.NewGuid()) { Value = "hello" }; + + var ex = await Assert.ThrowsAsync(() => context.ReplyAsync(reply)); + Assert.Contains("not a recognized queue", ex.Message); + } + + [Fact] + public async Task ReplyAsync_TrackedRequest_StillSucceedsInStrictMode() + { + var requestMessageId = Guid.NewGuid().ToString(); + var headers = new Dictionary + { + [HeaderKeys.SourceAddress] = "another-bus-queue", + [HeaderKeys.RequestMessageId] = requestMessageId + }; + _replyStatusRequestReplyManager.TrackedRequests.Add(requestMessageId); + + var busConfig = new BusConfiguration { StrictReplyValidation = true }; + var context = new ConsumeContext( + _mockBus.Object, + headers, + _queueConfig, + busConfig, + _replyStatusRequestReplyManager, + default); + + var reply = new ConsumeContextStrictReply(Guid.NewGuid()) { Value = "hello" }; + + await context.ReplyAsync(reply); + + _mockBus.Verify(b => b.SendAsync( + reply, + It.Is(o => + o.HasValue && + o.Value.EndPoint == "another-bus-queue" && + o.Value.Headers != null && + o.Value.Headers["ResponseMessageId"] == requestMessageId)), + Times.Once); + } + + [Fact] + public void IsKnownQueue_LargeMappingSet_LooksUpCorrectly() + { + // Build 1000 mappings × 10 queues each. + var mappings = new Dictionary>(StringComparer.Ordinal); + for (int i = 0; i < 1000; i++) + { + mappings[$"msg.type.{i}"] = [.. Enumerable.Range(0, 10).Select(j => $"queue.{i}.{j}")]; + } + + var config = new Mock(); + config.SetupGet(c => c.QueueName).Returns("self"); + config.SetupGet(c => c.ErrorQueueName).Returns("self.error"); + config.SetupGet(c => c.AuditQueueName).Returns("self.audit"); + config.SetupGet(c => c.QueueMappings).Returns(mappings); + + Assert.True(ConsumeContext.IsKnownQueue("queue.999.9", config.Object)); + Assert.False(ConsumeContext.IsKnownQueue("nope", config.Object)); + Assert.True(ConsumeContext.IsKnownQueue("QUEUE.999.9", config.Object)); // case-insensitive + Assert.True(ConsumeContext.IsKnownQueue("self", config.Object)); + Assert.True(ConsumeContext.IsKnownQueue("self.error", config.Object)); + Assert.True(ConsumeContext.IsKnownQueue("self.audit", config.Object)); + } + + [Fact] + public void IsKnownQueue_RepeatedLookups_StayUnderPerfBudget() + { + var mappings = new Dictionary>(StringComparer.Ordinal); + for (int i = 0; i < 1000; i++) + { + mappings[$"msg.type.{i}"] = [.. Enumerable.Range(0, 10).Select(j => $"queue.{i}.{j}")]; + } + + var config = new Mock(); + config.SetupGet(c => c.QueueName).Returns("self"); + config.SetupGet(c => c.ErrorQueueName).Returns("self.error"); + config.SetupGet(c => c.AuditQueueName).Returns("self.audit"); + config.SetupGet(c => c.QueueMappings).Returns(mappings); + + // Pre-build probe strings outside the timed window so the benchmark isolates + // hash-lookup speed from string-allocation throughput. Without this the timed + // loop is dominated by 10k small-string allocations on a slow CI runner. + var probes = Enumerable.Range(0, 10_000) + .Select(i => $"queue.{i % 1000}.{i % 10}") + .ToArray(); + + // Warm up the cache (so first-call flattening cost doesn't dominate). + ConsumeContext.IsKnownQueue("warmup", config.Object); + + var sw = System.Diagnostics.Stopwatch.StartNew(); + foreach (var probe in probes) + { + ConsumeContext.IsKnownQueue(probe, config.Object); + } + + sw.Stop(); + Assert.True(sw.Elapsed.TotalMilliseconds < 50, + $"IsKnownQueue is too slow: {sw.Elapsed.TotalMilliseconds:0.##}ms for 10k lookups against 10k mappings"); + } + + private static Dictionary BuildFallbackEnvelopeHeaders() => + new() + { + [HeaderKeys.RequestMessageId] = Guid.NewGuid().ToString(), + [HeaderKeys.SourceAddress] = "external-queue", + [HeaderKeys.MessageId] = Guid.NewGuid().ToString(), + [HeaderKeys.DestinationAddress] = "my-queue" + }; +} + +public class ConsumeContextStrictReply(Guid correlationId) : Message(correlationId) +{ + public string? Value { get; set; } +} diff --git a/src/ServiceConnect.UnitTests/Services/ConsumeContextTests.cs b/src/ServiceConnect.UnitTests/Services/ConsumeContextTests.cs new file mode 100644 index 000000000..00d536ed2 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/ConsumeContextTests.cs @@ -0,0 +1,342 @@ +using System; +using System.Collections.Generic; +using System.Threading.Tasks; +using Moq; +using ServiceConnect.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Interfaces.Options; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +public class ConsumeContextTestReply(Guid correlationId) : Message(correlationId) +{ + public string? Value { get; set; } +} + +public class ConsumeContextTests +{ + private readonly Mock _mockBus; + private readonly TestReplyStatusRequestReplyManager _replyStatusRequestReplyManager; + private readonly IQueueConfiguration _queueConfig; + private readonly IBusConfiguration _busConfig; + + public ConsumeContextTests() + { + _mockBus = new Mock(); + _replyStatusRequestReplyManager = new TestReplyStatusRequestReplyManager(); + _mockBus + .Setup(b => b.SendAsync(It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var queueConfig = new QueueConfiguration + { + QueueName = "my-queue", + ErrorQueueName = "errors", + AuditQueueName = "audit" + }; + _queueConfig = queueConfig; + + _busConfig = new BusConfiguration(); + } + + [Fact] + public void Properties_AreSetFromConstructor() + { + var headers = new Dictionary + { + { HeaderKeys.MessageId, "msg-123" } + }; + + var context = new ConsumeContext(_mockBus.Object, headers, _queueConfig, _busConfig); + + Assert.Same(_mockBus.Object, context.Bus); + // Dictionary implements IReadOnlyDictionary, so compare contents not reference. + Assert.Equal(headers, context.Headers); + Assert.Equal("msg-123", context.MessageId); + } + + [Fact] + public void MessageId_ReturnsNull_WhenNotInHeaders() + { + var headers = new Dictionary(); + var context = new ConsumeContext(_mockBus.Object, headers, _queueConfig, _busConfig); + + Assert.Null(context.MessageId); + } + + [Fact] + public void CorrelationId_ParsesFromHeaders() + { + var expected = Guid.NewGuid(); + var headers = new Dictionary + { + { HeaderKeys.CorrelationId, expected.ToString() } + }; + + var context = new ConsumeContext(_mockBus.Object, headers, _queueConfig, _busConfig); + + Assert.Equal(expected, context.CorrelationId); + } + + [Fact] + public void CorrelationId_ReturnsEmptyGuid_WhenNotInHeaders() + { + var headers = new Dictionary(); + var context = new ConsumeContext(_mockBus.Object, headers, _queueConfig, _busConfig); + + Assert.Equal(Guid.Empty, context.CorrelationId); + } + + [Fact] + public async Task ReplyAsync_SendsToSourceAddress_WhenKnownQueue() + { + var requestMessageId = Guid.NewGuid().ToString(); + var headers = new Dictionary + { + { HeaderKeys.SourceAddress, "my-queue" }, + { HeaderKeys.RequestMessageId, requestMessageId } + }; + + var context = new ConsumeContext(_mockBus.Object, headers, _queueConfig, _busConfig); + var reply = new ConsumeContextTestReply(Guid.NewGuid()) { Value = "hello" }; + + await context.ReplyAsync(reply); + + _mockBus.Verify(b => b.SendAsync( + reply, + It.Is(o => + o.HasValue && + o.Value.EndPoint == "my-queue" && + o.Value.Headers != null && + o.Value.Headers["ResponseMessageId"] == requestMessageId)), + Times.Once); + } + + [Fact] + public async Task ReplyAsync_ThrowsWhenSourceAddressNotKnown() + { + var headers = new Dictionary + { + { HeaderKeys.SourceAddress, "unknown-evil-queue" } + }; + + var context = new ConsumeContext(_mockBus.Object, headers, _queueConfig, _busConfig); + var reply = new ConsumeContextTestReply(Guid.NewGuid()) { Value = "hello" }; + + var ex = await Assert.ThrowsAsync(() => context.ReplyAsync(reply)); + Assert.Contains("not a recognized queue", ex.Message); + Assert.Contains("unknown-evil-queue", ex.Message); + } + + [Fact] + public async Task ReplyAsync_AllowsUnknownQueue_WhenValidationDisabled() + { + var headers = new Dictionary + { + { HeaderKeys.SourceAddress, "unknown-but-allowed" }, + { HeaderKeys.RequestMessageId, Guid.NewGuid().ToString() } + }; + + var busConfig = new BusConfiguration { ValidateReplyDestinations = false }; + var context = new ConsumeContext(_mockBus.Object, headers, _queueConfig, busConfig); + var reply = new ConsumeContextTestReply(Guid.NewGuid()) { Value = "hello" }; + + await context.ReplyAsync(reply); + + _mockBus.Verify(b => b.SendAsync( + reply, + It.Is(o => o.HasValue && o.Value.EndPoint == "unknown-but-allowed")), + Times.Once); + } + + [Fact] + public async Task ReplyAsync_AllowsReplyToQueueMappingDestination() + { + var queueConfig = new QueueConfiguration { QueueName = "my-queue" }; + queueConfig.AddQueueMapping(typeof(ConsumeContextTestReply), "mapped-reply-queue"); + + var headers = new Dictionary + { + { HeaderKeys.SourceAddress, "mapped-reply-queue" }, + { HeaderKeys.RequestMessageId, Guid.NewGuid().ToString() } + }; + + var context = new ConsumeContext(_mockBus.Object, headers, queueConfig, _busConfig); + var reply = new ConsumeContextTestReply(Guid.NewGuid()) { Value = "hello" }; + + await context.ReplyAsync(reply); + + _mockBus.Verify(b => b.SendAsync( + reply, + It.Is(o => o.HasValue && o.Value.EndPoint == "mapped-reply-queue")), + Times.Once); + } + + [Fact] + public async Task ReplyAsync_AllowsReplyToErrorQueue() + { + var headers = new Dictionary + { + { HeaderKeys.SourceAddress, "errors" }, + { HeaderKeys.RequestMessageId, Guid.NewGuid().ToString() } + }; + + var context = new ConsumeContext(_mockBus.Object, headers, _queueConfig, _busConfig); + var reply = new ConsumeContextTestReply(Guid.NewGuid()) { Value = "hello" }; + + await context.ReplyAsync(reply); + + _mockBus.Verify(b => b.SendAsync( + reply, + It.Is(o => o.HasValue && o.Value.EndPoint == "errors")), + Times.Once); + } + + [Fact] + public async Task ReplyAsync_WithCallerHeaders_PropagatesIntoSendOptions_AndStampedResponseMessageIdWins() + { + var requestMessageId = Guid.NewGuid().ToString(); + var headers = new Dictionary + { + { HeaderKeys.SourceAddress, "my-queue" }, + { HeaderKeys.RequestMessageId, requestMessageId } + }; + + var context = new ConsumeContext(_mockBus.Object, headers, _queueConfig, _busConfig); + var reply = new ConsumeContextTestReply(Guid.NewGuid()) { Value = "hello" }; + + var callerHeaders = new Dictionary + { + { "X-Trace", "abc" }, + // Caller-supplied ResponseMessageId is overwritten by the framework's stamp; the + // framework owns request/reply correlation and won't let callers spoof it. + { HeaderKeys.ResponseMessageId, "caller-supplied-should-be-overwritten" } + }; + + await context.ReplyAsync(reply, new ReplyOptions { Headers = callerHeaders }); + + _mockBus.Verify(b => b.SendAsync( + reply, + It.Is(o => + o.HasValue && + o.Value.Headers != null && + o.Value.Headers["X-Trace"] == "abc" && + o.Value.Headers[HeaderKeys.ResponseMessageId] == requestMessageId)), + Times.Once); + } + + [Fact] + public async Task ReplyAsync_WithSpoofedRequestMessageIdAndUnknownSourceAddress_Throws() + { + var spoofedRequestId = Guid.NewGuid().ToString(); + var headers = new Dictionary + { + { HeaderKeys.SourceAddress, "unknown-evil-queue" }, + { HeaderKeys.RequestMessageId, spoofedRequestId } + }; + + _replyStatusRequestReplyManager.TrackedRequests.Clear(); + + var context = new ConsumeContext( + _mockBus.Object, + headers, + _queueConfig, + _busConfig, + _replyStatusRequestReplyManager, + default); + var reply = new ConsumeContextTestReply(Guid.NewGuid()) { Value = "hello" }; + + var ex = await Assert.ThrowsAsync(() => context.ReplyAsync(reply)); + + Assert.Contains("not a recognized queue", ex.Message); + Assert.Contains("unknown-evil-queue", ex.Message); + } + + [Fact] + public async Task ReplyAsync_WithInboundFrameworkRequestEnvelopeAndUnknownSourceAddress_Succeeds() + { + var requestMessageId = Guid.NewGuid().ToString(); + var headers = new Dictionary + { + { HeaderKeys.SourceAddress, "unknown-framework-requester" }, + { HeaderKeys.RequestMessageId, requestMessageId }, + { HeaderKeys.DestinationAddress, "my-queue" }, + { HeaderKeys.MessageId, Guid.NewGuid().ToString() } + }; + + var context = new ConsumeContext(_mockBus.Object, headers, _queueConfig, _busConfig); + var reply = new ConsumeContextTestReply(Guid.NewGuid()) { Value = "hello" }; + + await context.ReplyAsync(reply); + + _mockBus.Verify(b => b.SendAsync( + reply, + It.Is(o => + o.HasValue && + o.Value.EndPoint == "unknown-framework-requester" && + o.Value.Headers != null && + o.Value.Headers["ResponseMessageId"] == requestMessageId)), + Times.Once); + } + + [Fact] + public async Task ReplyAsync_WithTrackedRequestMessageIdAndUnknownSourceAddress_Succeeds() + { + var requestMessageId = Guid.NewGuid().ToString(); + var headers = new Dictionary + { + { HeaderKeys.SourceAddress, "unknown-but-tracked" }, + { HeaderKeys.RequestMessageId, requestMessageId } + }; + + _replyStatusRequestReplyManager.TrackedRequests.Add(requestMessageId); + + var context = new ConsumeContext( + _mockBus.Object, + headers, + _queueConfig, + _busConfig, + _replyStatusRequestReplyManager, + default); + var reply = new ConsumeContextTestReply(Guid.NewGuid()) { Value = "hello" }; + + await context.ReplyAsync(reply); + + _mockBus.Verify(b => b.SendAsync( + reply, + It.Is(o => + o.HasValue && + o.Value.EndPoint == "unknown-but-tracked" && + o.Value.Headers != null && + o.Value.Headers["ResponseMessageId"] == requestMessageId)), + Times.Once); + } + + [Fact] + public void IsKnownQueue_MatchesCaseInsensitively() + { + var queueConfig = new QueueConfiguration + { + QueueName = "MyQueue", + ErrorQueueName = "Errors", + AuditQueueName = "Audit" + }; + + Assert.True(ConsumeContext.IsKnownQueue("myqueue", queueConfig)); + Assert.True(ConsumeContext.IsKnownQueue("ERRORS", queueConfig)); + Assert.True(ConsumeContext.IsKnownQueue("audit", queueConfig)); + Assert.False(ConsumeContext.IsKnownQueue("unknown", queueConfig)); + } +} + +internal sealed class TestReplyStatusRequestReplyManager : IReplyStatusRequestReplyManager +{ + public HashSet TrackedRequests { get; } = new(StringComparer.OrdinalIgnoreCase); + + public bool TryProcessReply(string messageId, ReadOnlyMemory messageBytes, Type type) => false; + + public bool IsTrackedRequest(string messageId) => TrackedRequests.Contains(messageId); +} diff --git a/src/ServiceConnect.UnitTests/Services/ConsumeContextVolatileTests.cs b/src/ServiceConnect.UnitTests/Services/ConsumeContextVolatileTests.cs new file mode 100644 index 000000000..d4178702f --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/ConsumeContextVolatileTests.cs @@ -0,0 +1,77 @@ +using System; +using System.Collections.Generic; +using Moq; +using ServiceConnect.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +/// +/// Pins the cache-stability semantics introduced by the volatile double-checked-publication +/// pattern on and . +/// The value resolved on first read must be the value returned forever after; the volatile +/// flag's release/acquire semantics make the payload write visible to all subsequent readers. +/// +public class ConsumeContextVolatileTests +{ + private static ConsumeContext BuildContext(IDictionary headers) + { + var bus = new Mock().Object; + IQueueConfiguration queueConfig = new QueueConfiguration + { + QueueName = "test-queue", + ErrorQueueName = "test-errors", + AuditQueueName = "test-audit" + }; + IBusConfiguration busConfig = new BusConfiguration(); + return new ConsumeContext(bus, headers, queueConfig, busConfig); + } + + [Fact] + public void MessageId_RepeatedReads_ReturnSameCachedValue() + { + var headers = new Dictionary + { + { HeaderKeys.MessageId, Guid.NewGuid().ToString() } + }; + var ctx = BuildContext(headers); + + var first = ctx.MessageId; + var second = ctx.MessageId; + + Assert.NotNull(first); + Assert.Equal(first, second); + } + + [Fact] + public void CorrelationId_RepeatedReads_ReturnSameCachedValue() + { + var correlationGuid = Guid.NewGuid(); + var headers = new Dictionary + { + { HeaderKeys.CorrelationId, correlationGuid.ToString() } + }; + var ctx = BuildContext(headers); + + var first = ctx.CorrelationId; + var second = ctx.CorrelationId; + + Assert.Equal(correlationGuid, first); + Assert.Equal(first, second); + } + + [Fact] + public void CorrelationId_AbsentHeader_ReturnsGuidEmpty() + { + // _correlationId is a Guid with Guid.Empty as the sentinel for "absent header". + // Modelling it as Guid? with a null sentinel would also produce Guid.Empty here, + // so this test pins the absent-header outcome regardless of the underlying field type. + var headers = new Dictionary(); + var ctx = BuildContext(headers); + + Assert.Equal(Guid.Empty, ctx.CorrelationId); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/ConsumeScopeAccessorPerInstanceTests.cs b/src/ServiceConnect.UnitTests/Services/ConsumeScopeAccessorPerInstanceTests.cs new file mode 100644 index 000000000..febb44fe0 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/ConsumeScopeAccessorPerInstanceTests.cs @@ -0,0 +1,53 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +public class ConsumeScopeAccessorPerInstanceTests +{ + [Fact] + public void TwoInstances_DoNotShareScope() + { + var accessorA = new ConsumeScopeAccessor(); + var accessorB = new ConsumeScopeAccessor(); + var providerA = new ServiceCollection().BuildServiceProvider(); + + using (accessorA.Push(providerA)) + { + // accessorB.Current must throw — its scope was not pushed. + Assert.Throws(() => accessorB.Current); + Assert.Same(providerA, accessorA.Current); + } + } + + [Fact] + public async Task ConcurrentDispatches_AcrossInstances_DoNotBleed() + { + var accessorA = new ConsumeScopeAccessor(); + var accessorB = new ConsumeScopeAccessor(); + var providerA = new ServiceCollection().BuildServiceProvider(); + var providerB = new ServiceCollection().BuildServiceProvider(); + + var taskA = Task.Run(async () => + { + using (accessorA.Push(providerA)) + { + await Task.Yield(); + Assert.Same(providerA, accessorA.Current); + Assert.Throws(() => accessorB.Current); + } + }); + var taskB = Task.Run(async () => + { + using (accessorB.Push(providerB)) + { + await Task.Yield(); + Assert.Same(providerB, accessorB.Current); + Assert.Throws(() => accessorA.Current); + } + }); + + await Task.WhenAll(taskA, taskB); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/ExceptionHandlerTests.cs b/src/ServiceConnect.UnitTests/Services/ExceptionHandlerTests.cs new file mode 100644 index 000000000..c9b801cfe --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/ExceptionHandlerTests.cs @@ -0,0 +1,197 @@ +using System; +using System.Collections.Generic; +using System.Text; +using System.Threading.Tasks; +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging; +using Microsoft.Extensions.Logging.Abstractions; +using Microsoft.Extensions.Logging.Testing; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Services; +using ServiceConnect.UnitTests.Fakes.Messages; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +public class ExceptionHandlerTests +{ + private readonly Mock _mockSerializer; + private readonly Mock _mockFilterPipeline; + private readonly Mock _mockConfig; + + public ExceptionHandlerTests() + { + _mockSerializer = new Mock(); + _mockFilterPipeline = new Mock(); + _mockConfig = new Mock(); + + // Default: filters don't block + _mockFilterPipeline.Setup(f => f.ExecuteBeforeConsumingFiltersAsync(It.IsAny(), It.IsAny())).ReturnsAsync(FilterAction.Continue); + _mockFilterPipeline.Setup(f => f.ExecuteAfterConsumingFiltersAsync(It.IsAny(), It.IsAny())).ReturnsAsync(FilterAction.Continue); + } + + private static Dictionary MakeHeaders() + { + return new Dictionary + { + [HeaderKeys.FullTypeName] = Encoding.UTF8.GetBytes(typeof(FakeMessage1).AssemblyQualifiedName!) + }; + } + + private MessageDispatcher CreateDispatcher(IList processors, ILogger? logger = null) + { + var mockPipelineConfig = new Mock(); + mockPipelineConfig.Setup(p => p.MessageProcessingMiddleware).Returns([]); + var sp = new ServiceCollection().BuildServiceProvider(); + var registry = new MessageTypeRegistry(); + registry.Register(typeof(FakeMessage1)); + return new MessageDispatcher( + _mockSerializer.Object, + _mockFilterPipeline.Object, + processors, + logger ?? NullLogger.Instance, + _mockConfig.Object, + mockPipelineConfig.Object, + sp.GetRequiredService(), + new ConsumeScopeAccessor(), + registry); + } + + [Fact] + public async Task Dispatch_HandlerThrows_ExceptionHandlerInvoked() + { + // Arrange + var thrownException = new InvalidOperationException("Handler failure"); + Exception? capturedEx = null; + _mockConfig.SetupProperty(c => c.ExceptionHandler, (ex, _) => { capturedEx = ex; return ValueTask.CompletedTask; }); + + var mockProcessor = new Mock(); + mockProcessor.Setup(p => p.RunBeforeDeserialization).Returns(false); + mockProcessor + .Setup(p => p.ProcessAsync( + It.IsAny>(), + It.IsAny(), + It.IsAny(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .ThrowsAsync(thrownException); + + var message = new FakeMessage1(Guid.NewGuid()); + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))).Returns(message); + + var dispatcher = CreateDispatcher([mockProcessor.Object]); + var headers = MakeHeaders(); + + // Act + var result = await dispatcher.DispatchAsync(new byte[] { 1, 2, 3 }, "FakeMessage1", headers); + + // Assert + Assert.False(result.Success); + Assert.NotNull(capturedEx); + Assert.Same(thrownException, capturedEx); + } + + [Fact] + public async Task Dispatch_ExceptionHandlerIsNull_NoError() + { + // Arrange + _mockConfig.SetupProperty(c => c.ExceptionHandler, null); + + var mockProcessor = new Mock(); + mockProcessor.Setup(p => p.RunBeforeDeserialization).Returns(false); + mockProcessor + .Setup(p => p.ProcessAsync( + It.IsAny>(), + It.IsAny(), + It.IsAny(), + It.IsAny>(), + It.IsAny())) + .ThrowsAsync(new InvalidOperationException("handler boom")); + + var message = new FakeMessage1(Guid.NewGuid()); + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))).Returns(message); + + var dispatcher = CreateDispatcher([mockProcessor.Object]); + var headers = MakeHeaders(); + + // Act + var result = await dispatcher.DispatchAsync(new byte[] { 1, 2, 3 }, "FakeMessage1", headers); + + // Assert — no crash, result indicates failure + Assert.False(result.Success); + Assert.NotNull(result.Exception); + } + + [Fact] + public async Task Dispatch_ExceptionHandlerThrows_DoesNotBreakProcessing() + { + // Arrange — ExceptionHandler itself throws + _mockConfig.SetupProperty(c => c.ExceptionHandler, (Func)((_, _) => throw new Exception("handler itself exploded"))); + + var mockProcessor = new Mock(); + mockProcessor.Setup(p => p.RunBeforeDeserialization).Returns(false); + mockProcessor + .Setup(p => p.ProcessAsync( + It.IsAny>(), + It.IsAny(), + It.IsAny(), + It.IsAny>(), + It.IsAny())) + .ThrowsAsync(new InvalidOperationException("original dispatch error")); + + var message = new FakeMessage1(Guid.NewGuid()); + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))).Returns(message); + + var dispatcher = CreateDispatcher([mockProcessor.Object]); + var headers = MakeHeaders(); + + // Act — should not throw even though ExceptionHandler throws + var result = await dispatcher.DispatchAsync(new byte[] { 1, 2, 3 }, "FakeMessage1", headers); + + // Assert — still returns failure without crashing + Assert.False(result.Success); + Assert.NotNull(result.Exception); + } + + [Fact] + public async Task Dispatch_ExceptionHandlerThrows_LogsAtErrorLevelWithMessageType() + { + var hookCrash = new InvalidOperationException("hook itself crashed"); + _mockConfig.SetupProperty( + c => c.ExceptionHandler, + (Func)((_, _) => throw hookCrash)); + + var mockProcessor = new Mock(); + mockProcessor.Setup(p => p.RunBeforeDeserialization).Returns(false); + mockProcessor + .Setup(p => p.ProcessAsync( + It.IsAny>(), + It.IsAny(), + It.IsAny(), + It.IsAny>(), + It.IsAny())) + .ThrowsAsync(new InvalidOperationException("original dispatch error")); + + var message = new FakeMessage1(Guid.NewGuid()); + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))).Returns(message); + + var fakeLogger = new FakeLogger(); + var dispatcher = CreateDispatcher([mockProcessor.Object], fakeLogger); + var headers = MakeHeaders(); + + await dispatcher.DispatchAsync(new byte[] { 1, 2, 3 }, "FakeMessage1", headers); + + // Hook crashes are operator-actionable failures of an opt-in surface; the dispatcher + // logs them at Error so they aren't silently filtered out at default Warning ceilings. + // The message-type lands in the template so log readers can correlate the hook crash + // to the specific dispatch that triggered it. + var hookCrashRecord = Assert.Single( + fakeLogger.Collector.GetSnapshot(), + r => r.Exception is InvalidOperationException ex && ex.Message == "hook itself crashed"); + Assert.Equal(LogLevel.Error, hookCrashRecord.Level); + Assert.Contains("FakeMessage1", hookCrashRecord.Message); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/FilterPipelineTests.cs b/src/ServiceConnect.UnitTests/Services/FilterPipelineTests.cs new file mode 100644 index 000000000..83263e1a5 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/FilterPipelineTests.cs @@ -0,0 +1,284 @@ +using System; +using System.Collections.Generic; +using System.Threading; +using System.Threading.Tasks; +using Moq; +using ServiceConnect.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +public abstract class FakeFilter1 : IFilter +{ + public abstract Task ProcessAsync(Envelope envelope, CancellationToken cancellationToken = default); +} + +public abstract class FakeFilter2 : IFilter +{ + public abstract Task ProcessAsync(Envelope envelope, CancellationToken cancellationToken = default); +} + +public class FilterPipelineTests +{ + private readonly PipelineConfiguration _config; + private readonly Mock _mockServiceProvider; + private readonly FilterPipeline _pipeline; + + public FilterPipelineTests() + { + _config = new PipelineConfiguration(); + _mockServiceProvider = new Mock(); + // ConsumeScopeAccessor flows the scope through AsyncLocal — each xUnit + // test instance runs in its own async flow, so pushing in the ctor and + // discarding the disposable is safe. + var scopeAccessor = new ConsumeScopeAccessor(); + scopeAccessor.Push(_mockServiceProvider.Object); + _pipeline = new FilterPipeline(_config, scopeAccessor); + } + + [Fact] + public async Task ExecuteOutgoingFiltersAsync_WithNoFilters_ReturnsContinue() + { + var envelope = new Envelope(); + var result = await _pipeline.ExecuteOutgoingFiltersAsync(envelope); + Assert.Equal(FilterAction.Continue, result); + } + + [Fact] + public async Task ExecuteOutgoingFiltersAsync_WhenFilterContinues_PipelineContinues() + { + var mockFilter = new Mock(); + mockFilter.Setup(f => f.ProcessAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(FilterAction.Continue); + + _mockServiceProvider + .Setup(sp => sp.GetService(typeof(FakeFilter1))) + .Returns(mockFilter.Object); + + _config.OutgoingFilters.Add(typeof(FakeFilter1)); + + var envelope = new Envelope(); + var result = await _pipeline.ExecuteOutgoingFiltersAsync(envelope); + + Assert.Equal(FilterAction.Continue, result); + } + + [Fact] + public async Task ExecuteOutgoingFiltersAsync_WhenFilterStops_PipelineStops() + { + var mockFilter = new Mock(); + mockFilter.Setup(f => f.ProcessAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(FilterAction.Stop); + + _mockServiceProvider + .Setup(sp => sp.GetService(typeof(FakeFilter1))) + .Returns(mockFilter.Object); + + _config.OutgoingFilters.Add(typeof(FakeFilter1)); + + var envelope = new Envelope(); + var result = await _pipeline.ExecuteOutgoingFiltersAsync(envelope); + + Assert.Equal(FilterAction.Stop, result); + } + + [Fact] + public async Task ExecuteOutgoingFiltersAsync_ExecutesFiltersInOrder() + { + var callOrder = new List(); + + var mockFilter1 = new Mock(); + mockFilter1.Setup(f => f.ProcessAsync(It.IsAny(), It.IsAny())) + .Callback(() => callOrder.Add("filter1")) + .ReturnsAsync(FilterAction.Continue); + + var mockFilter2 = new Mock(); + mockFilter2.Setup(f => f.ProcessAsync(It.IsAny(), It.IsAny())) + .Callback(() => callOrder.Add("filter2")) + .ReturnsAsync(FilterAction.Continue); + + _mockServiceProvider + .Setup(sp => sp.GetService(typeof(FakeFilter1))) + .Returns(mockFilter1.Object); + _mockServiceProvider + .Setup(sp => sp.GetService(typeof(FakeFilter2))) + .Returns(mockFilter2.Object); + + _config.OutgoingFilters.Add(typeof(FakeFilter1)); + _config.OutgoingFilters.Add(typeof(FakeFilter2)); + + var envelope = new Envelope(); + await _pipeline.ExecuteOutgoingFiltersAsync(envelope); + + Assert.Equal(new[] { "filter1", "filter2" }, callOrder); + } + + [Fact] + public async Task ExecuteOutgoingFiltersAsync_StopsAtFirstStoppingFilter() + { + var mockFilter1 = new Mock(); + mockFilter1.Setup(f => f.ProcessAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(FilterAction.Stop); + + var mockFilter2 = new Mock(); + mockFilter2.Setup(f => f.ProcessAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(FilterAction.Continue); + + _mockServiceProvider + .Setup(sp => sp.GetService(typeof(FakeFilter1))) + .Returns(mockFilter1.Object); + _mockServiceProvider + .Setup(sp => sp.GetService(typeof(FakeFilter2))) + .Returns(mockFilter2.Object); + + _config.OutgoingFilters.Add(typeof(FakeFilter1)); + _config.OutgoingFilters.Add(typeof(FakeFilter2)); + + var envelope = new Envelope(); + await _pipeline.ExecuteOutgoingFiltersAsync(envelope); + + // Filter2 should never have been called once filter1 said Stop. + mockFilter2.Verify(f => f.ProcessAsync(It.IsAny(), It.IsAny()), Times.Never); + } + + [Fact] + public async Task ExecuteOutgoingFiltersAsync_ThrowsWhenFilterNotRegistered() + { + _mockServiceProvider + .Setup(sp => sp.GetService(typeof(FakeFilter1))) + .Returns(null!); + + _config.OutgoingFilters.Add(typeof(FakeFilter1)); + + var envelope = new Envelope(); + await Assert.ThrowsAsync(() => _pipeline.ExecuteOutgoingFiltersAsync(envelope)); + } + + [Fact] + public async Task ExecuteBeforeConsumingFiltersAsync_WithNoFilters_ReturnsContinue() + { + var envelope = new Envelope(); + var result = await _pipeline.ExecuteBeforeConsumingFiltersAsync(envelope); + Assert.Equal(FilterAction.Continue, result); + } + + [Fact] + public async Task ExecuteAfterConsumingFiltersAsync_WithNoFilters_ReturnsContinue() + { + var envelope = new Envelope(); + var result = await _pipeline.ExecuteAfterConsumingFiltersAsync(envelope); + Assert.Equal(FilterAction.Continue, result); + } + + [Fact] + public async Task ExecuteFilter_ResolvesFromCurrentScope() + { + // Filters must be resolved from the scope pushed onto ConsumeScopeAccessor, + // not from any previously captured provider. Swap the current scope mid-flight + // and verify the new provider is the one queried. + var firstFilter = new Mock(); + firstFilter.Setup(f => f.ProcessAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(FilterAction.Continue); + _mockServiceProvider.Setup(sp => sp.GetService(typeof(FakeFilter1))).Returns(firstFilter.Object); + + var otherProvider = new Mock(); + var swappedFilter = new Mock(); + swappedFilter.Setup(f => f.ProcessAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(FilterAction.Continue); + otherProvider.Setup(sp => sp.GetService(typeof(FakeFilter1))).Returns(swappedFilter.Object); + + _config.OutgoingFilters.Add(typeof(FakeFilter1)); + + var accessor = new ConsumeScopeAccessor(); + accessor.Push(otherProvider.Object); + var pipeline = new FilterPipeline(_config, accessor); + + await pipeline.ExecuteOutgoingFiltersAsync(new Envelope()); + + swappedFilter.Verify(f => f.ProcessAsync(It.IsAny(), It.IsAny()), Times.Once); + firstFilter.Verify(f => f.ProcessAsync(It.IsAny(), It.IsAny()), Times.Never); + } + + [Fact] + public async Task ExecuteFilter_ThrowsWhenNoScopePushed() + { + // Guard-rail: resolving a filter with no scope pushed is always a misuse. + // Throw loudly rather than silently falling back to a root provider. + var config = new PipelineConfiguration(); + config.OutgoingFilters.Add(typeof(FakeFilter1)); + var pipeline = new FilterPipeline(config, new ConsumeScopeAccessor()); + + await Assert.ThrowsAsync(() => pipeline.ExecuteOutgoingFiltersAsync(new Envelope())); + } + + [Fact] + public async Task ExecuteOutgoingFiltersAsync_PreCancelledToken_ThrowsOCEBeforeFilterRuns() + { + var mockFilter = new Mock(); + mockFilter.Setup(f => f.ProcessAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(FilterAction.Continue); + + _mockServiceProvider + .Setup(sp => sp.GetService(typeof(FakeFilter1))) + .Returns(mockFilter.Object); + + _config.OutgoingFilters.Add(typeof(FakeFilter1)); + + using var cts = new CancellationTokenSource(); + cts.Cancel(); + + var envelope = new Envelope(); + await Assert.ThrowsAsync(() => + _pipeline.ExecuteOutgoingFiltersAsync(envelope, cts.Token)); + + mockFilter.Verify(f => f.ProcessAsync(It.IsAny(), It.IsAny()), Times.Never); + } + + [Fact] + public async Task ExecuteOnConsumedSuccessfullyFiltersAsync_WithNoFilters_ReturnsContinue() + { + var envelope = new Envelope(); + var result = await _pipeline.ExecuteOnConsumedSuccessfullyFiltersAsync(envelope); + Assert.Equal(FilterAction.Continue, result); + } + + [Fact] + public async Task ExecuteOnConsumedSuccessfullyFiltersAsync_WhenFilterContinues_PipelineContinues() + { + var mockFilter = new Mock(); + mockFilter.Setup(f => f.ProcessAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(FilterAction.Continue); + + _mockServiceProvider + .Setup(sp => sp.GetService(typeof(FakeFilter1))) + .Returns(mockFilter.Object); + + _config.OnConsumedSuccessfullyFilters.Add(typeof(FakeFilter1)); + + var envelope = new Envelope(); + var result = await _pipeline.ExecuteOnConsumedSuccessfullyFiltersAsync(envelope); + + Assert.Equal(FilterAction.Continue, result); + } + + [Fact] + public async Task ExecuteOnConsumedSuccessfullyFiltersAsync_WhenFilterStops_PipelineStops() + { + var mockFilter = new Mock(); + mockFilter.Setup(f => f.ProcessAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(FilterAction.Stop); + + _mockServiceProvider + .Setup(sp => sp.GetService(typeof(FakeFilter1))) + .Returns(mockFilter.Object); + + _config.OnConsumedSuccessfullyFilters.Add(typeof(FakeFilter1)); + + var envelope = new Envelope(); + var result = await _pipeline.ExecuteOnConsumedSuccessfullyFiltersAsync(envelope); + + Assert.Equal(FilterAction.Stop, result); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/HandlerScannerAggregatorHierarchyTests.cs b/src/ServiceConnect.UnitTests/Services/HandlerScannerAggregatorHierarchyTests.cs new file mode 100644 index 000000000..9ec5d5806 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/HandlerScannerAggregatorHierarchyTests.cs @@ -0,0 +1,36 @@ +using ServiceConnect.Interfaces; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +public sealed class HandlerScannerAggregatorHierarchyTests +{ + public sealed class TwoLevelMessage : Message + { + public TwoLevelMessage() : base(Guid.NewGuid()) { } + } + + public abstract class AggregatorBase : Aggregator where T : Message + { + public override int BatchSize() => 10; + public override TimeSpan Timeout() => TimeSpan.FromSeconds(1); + } + + public sealed class TwoLevelAggregator : AggregatorBase + { + public override Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default) + => Task.CompletedTask; + } + + [Fact] + public void ScanForHandlers_DiscoversTwoLevelAggregatorSubclass() + { + var refs = HandlerScanner.ScanForHandlers([typeof(TwoLevelAggregator).Assembly]); + + Assert.Contains(refs, r => + r.HandlerType == typeof(TwoLevelAggregator) && + r.MessageType == typeof(TwoLevelMessage) && + r.InterfaceKind == HandlerInterfaceKind.Aggregator); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/MessageBusReadStreamCasRaceTests.cs b/src/ServiceConnect.UnitTests/Services/MessageBusReadStreamCasRaceTests.cs new file mode 100644 index 000000000..73d725146 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/MessageBusReadStreamCasRaceTests.cs @@ -0,0 +1,61 @@ +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +public class MessageBusReadStreamCasRaceTests +{ + [Fact] + public void SetLastPacketNumber_PacketAlreadyExceedsValue_ThrowsImmediately() + { + // Sequential setup of the race: a packet for slot 5 lands while + // _lastPacketNumber == -1 (no upper bound yet enforced by Write). The + // subsequent SetLastPacketNumber(3) must reject — the stream's + // declared total is below an already-stored slot. + var stream = new MessageBusReadStream("test-seq"); + stream.Write(new byte[] { 0xAA }, packetNumber: 5); + + var ex = Assert.Throws(() => stream.SetLastPacketNumber(3)); + Assert.Contains("5", ex.Message); + } + + [Fact] + public async Task SetLastPacketNumber_ConcurrentWrite_AllOutOfRangeDetected() + { + // True concurrency. Each trial races a single Write(N+1) against + // SetLastPacketNumber(N). One of three outcomes is acceptable: + // 1. Write throws (rejected by the post-CAS upper bound in Write). + // 2. SetLastPacketNumber throws (caught by pre- or post-CAS validation). + // 3. Both throw. + // The bug is: both succeed silently, leaving packet N+1 in _packets + // with LastPacketNumber = N — a stream-state violation. + const int trials = 200; + var bothSucceededSilently = 0; + for (var i = 0; i < trials; i++) + { + var stream = new MessageBusReadStream($"seq-{i}"); + const long N = 3; + + Exception? writeEx = null; + Exception? setEx = null; + var tWrite = Task.Run(() => + { + try { stream.Write(new byte[] { 0xBB }, packetNumber: N + 1); } + catch (Exception ex) { writeEx = ex; } + }); + var tSet = Task.Run(() => + { + try { stream.SetLastPacketNumber(N); } + catch (Exception ex) { setEx = ex; } + }); + await Task.WhenAll(tWrite, tSet); + + if (writeEx is null && setEx is null) + { + bothSucceededSilently++; + } + } + + Assert.Equal(0, bothSucceededSilently); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/MessageBusReadStreamMaxSizeConfigurableTests.cs b/src/ServiceConnect.UnitTests/Services/MessageBusReadStreamMaxSizeConfigurableTests.cs new file mode 100644 index 000000000..507ba4b65 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/MessageBusReadStreamMaxSizeConfigurableTests.cs @@ -0,0 +1,68 @@ +using ServiceConnect.Configuration; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +/// +/// Verifies that the per-stream byte cap previously hard-coded as +/// MessageBusReadStream.MaxTotalStreamSize = 100 * 1024 * 1024 is now sourced +/// from +/// (default 100 MB) and threaded into each at construction. +/// The cap check is newTotal > _maxTotalStreamSize, so a configured value of +/// 1024 bytes admits exactly the cap and rejects the first byte that would exceed it. +/// +public class MessageBusReadStreamMaxSizeConfigurableTests +{ + [Fact] + public void BusConfiguration_MaxStreamSizeBytes_DefaultsTo100MB() + { + var config = new BusConfiguration(); + + Assert.Equal(100L * 1024 * 1024, config.MaxStreamSizeBytes); + } + + [Fact] + public void MessageBusReadStream_DefaultCtor_PreservesHistoricalCap() + { + // The defaulted ctor parameter exists so existing direct-construction callers + // (legacy unit tests) keep their historical 100 MB ceiling without modification. + // A 1 KiB packet still well below the default cap must commit cleanly. + var stream = new MessageBusReadStream("seq-default"); + + var ex = Record.Exception(() => stream.Write(new byte[1024], 0)); + + Assert.Null(ex); + } + + [Fact] + public void MessageBusReadStream_CustomCap_AdmitsExactlyTheCapAndRejectsTheNextByte() + { + // Configured cap of 1024 bytes: a single 1024-byte packet exactly hits the cap + // and is admitted (newTotal > cap is false at equality). A subsequent 1-byte + // packet pushes newTotal to 1025 and must throw InvalidOperationException. + var stream = new MessageBusReadStream("seq-custom", maxTotalStreamSize: 1024); + + stream.Write(new byte[1024], 0); + + var ex = Assert.Throws(() => stream.Write(new byte[1], 1)); + Assert.Contains("1,024 bytes", ex.Message); + } + + [Fact] + public void MessageBusReadStream_CustomCap_RollsBackReservedBytesOnRejection() + { + // A rejected Write must roll the cumulative byte count back so that a subsequent + // smaller packet for the same sequence still has the unused headroom available. + // Without rollback the inflated total would poison every future Write on this + // sequence, even ones that would individually fit under the cap. + var stream = new MessageBusReadStream("seq-rollback", maxTotalStreamSize: 1024); + + stream.Write(new byte[512], 0); + Assert.Throws(() => stream.Write(new byte[1024], 1)); + + // After rollback the reserved-byte count is back at 512, so a 512-byte top-up fits. + var ex = Record.Exception(() => stream.Write(new byte[512], 2)); + Assert.Null(ex); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/MessageBusReadStreamTests.cs b/src/ServiceConnect.UnitTests/Services/MessageBusReadStreamTests.cs new file mode 100644 index 000000000..8c90519c7 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/MessageBusReadStreamTests.cs @@ -0,0 +1,234 @@ +using System.Buffers; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +public class MessageBusReadStreamTests +{ + [Fact] + public void Write_And_Read_ReassemblesPacketsInOrder() + { + var stream = new MessageBusReadStream("seq"); + stream.SetLastPacketNumber(2); + stream.Write(new byte[] { 1, 2 }, 0); + stream.Write(new byte[] { 5, 6 }, 2); + stream.Write(new byte[] { 3, 4 }, 1); + + Assert.True(stream.IsComplete()); + Assert.Equal(new byte[] { 1, 2, 3, 4, 5, 6 }, stream.Read()); + } + + [Fact] + public void IsComplete_MissingPacket_ReturnsFalse() + { + var stream = new MessageBusReadStream("seq"); + stream.SetLastPacketNumber(2); + stream.Write(new byte[] { 1 }, 0); + stream.Write(new byte[] { 3 }, 2); + + Assert.False(stream.IsComplete()); + } + + [Fact] + public void IsComplete_NoLastPacketNumber_ReturnsFalse() + { + var stream = new MessageBusReadStream("seq"); + stream.Write(new byte[] { 1 }, 0); + + Assert.False(stream.IsComplete()); + } + + [Fact] + public void Read_WhenNotComplete_ThrowsInvalidOperationException() + { + var stream = new MessageBusReadStream("seq"); + stream.Write(new byte[] { 1 }, 0); + + Assert.Throws(stream.Read); + } + + [Fact] + public void Write_DuplicatePacketNumber_DoesNotThrow() + { + // Broker re-delivery is a routine occurrence — the second arrival of the same + // packet number is treated as an idempotent ack rather than a stream-corruption + // signal that would nack-with-requeue and produce a poison loop. + var stream = new MessageBusReadStream("seq"); + stream.Write(new byte[] { 1, 2 }, 0); + + var ex = Record.Exception(() => stream.Write("\t\t"u8.ToArray(), 0)); + + Assert.Null(ex); + } + + [Fact] + public void Write_DuplicatePacketNumber_FirstPayloadWins_AndStreamIsComplete() + { + var stream = new MessageBusReadStream("seq"); + stream.SetLastPacketNumber(0); + stream.Write(new byte[] { 1, 2 }, 0); + stream.Write("\t\t"u8.ToArray(), 0); // ignored + + Assert.True(stream.IsComplete()); + Assert.Equal(new byte[] { 1, 2 }, stream.Read()); + } + + [Fact] + public void ReadSequence_Throws_When_NotComplete() + { + var stream = new MessageBusReadStream("seq"); + Assert.Throws(() => stream.ReadSequence()); + } + + [Fact] + public void ReadSequence_SinglePacket_ReturnsAllBytes() + { + var stream = new MessageBusReadStream("seq"); + stream.SetLastPacketNumber(0); + stream.Write(new byte[] { 1, 2, 3 }, 0); + var seq = stream.ReadSequence(); + Assert.Equal(3, seq.Length); + Assert.Equal(new byte[] { 1, 2, 3 }, seq.ToArray()); + } + + [Fact] + public void ReadSequence_MultiplePackets_LinksInOrder() + { + var stream = new MessageBusReadStream("seq"); + stream.SetLastPacketNumber(2); + stream.Write(new byte[] { 1, 2 }, 0); + stream.Write(new byte[] { 3 }, 1); + stream.Write(new byte[] { 4, 5 }, 2); + var seq = stream.ReadSequence(); + Assert.Equal(5, seq.Length); + Assert.False(seq.IsSingleSegment); + Assert.Equal(new byte[] { 1, 2, 3, 4, 5 }, seq.ToArray()); + } + + [Fact] + public void ReadSequence_OutOfOrderWrites_ReassemblesInOrder() + { + var stream = new MessageBusReadStream("seq"); + stream.SetLastPacketNumber(2); + stream.Write(new byte[] { 4, 5 }, 2); + stream.Write(new byte[] { 1, 2 }, 0); + stream.Write(new byte[] { 3 }, 1); + var seq = stream.ReadSequence(); + Assert.False(seq.IsSingleSegment); + Assert.Equal(new byte[] { 1, 2, 3, 4, 5 }, seq.ToArray()); + } + + [Fact] + public void SetLastPacketNumber_AfterValidPacket_HappyPath() + { + // Packet 0 arrives, then the close-packet declares LastPacketNumber=0 — consistent. + var stream = new MessageBusReadStream("seq"); + stream.Write(new byte[] { 1 }, 0); + + var ex = Record.Exception(() => stream.SetLastPacketNumber(0)); + + Assert.Null(ex); + Assert.True(stream.IsComplete()); + } + + [Fact] + public void SetLastPacketNumber_WhenAlreadyReceivedPacketExceedsIt_Throws() + { + // Packet 5 arrives before the close-packet declares LastPacketNumber=2 — inconsistent. + var stream = new MessageBusReadStream("seq"); + stream.Write("\t"u8.ToArray(), 5); + + var ex = Assert.Throws(() => stream.SetLastPacketNumber(2)); + + Assert.Contains("5", ex.Message); + Assert.Contains("2", ex.Message); + } + + [Fact] + public void IsComplete_ReturnsFalse_WhenPacketSetIsNonContiguous() + { + // Write must reject packetNumber > LastPacketNumber once LastPacketNumber is set, + // otherwise a sparse set like {0, 1, 999} with LastPacketNumber=2 would have + // _receivedCount == LastPacketNumber+1 and IsComplete would return true while + // Read/ReadSequence silently returned truncated bytes. + + var stream = new MessageBusReadStream("seq"); + stream.Write(new byte[] { 1 }, 0); + stream.Write(new byte[] { 2 }, 1); + stream.SetLastPacketNumber(2); + + Assert.Throws(() => stream.Write("\t"u8.ToArray(), 999)); + Assert.False(stream.IsComplete()); + } + + // --- Gap-detection regression tests --- + + // Forces the internal received-count counter to a given value via reflection so that + // IsComplete() returns true while the packet dictionary has a gap. This tests the + // defensive throw inside Read()/ReadSequence() that fires even when IsComplete() is + // satisfied — guarding against any future regression that makes IsComplete() too + // permissive. + private static void ForceReceivedCount(MessageBusReadStream stream, int count) + { + var field = typeof(MessageBusReadStream) + .GetField("_receivedCount", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance)!; + field.SetValue(stream, count); + } + + [Fact] + public void Read_ThrowsInvalidOperationException_WhenPacketIsMissing() + { + // Arrange: stream reports IsComplete() == true (via forced count) but packet 1 is absent. + var stream = new MessageBusReadStream("seq"); + stream.SetLastPacketNumber(2); + stream.Write(new byte[] { 1 }, 0); + stream.Write(new byte[] { 3 }, 2); + ForceReceivedCount(stream, 3); // persuade IsComplete() to return true despite the gap + + // Act + Assert + var ex = Assert.Throws(stream.Read); + Assert.Contains("missing packet 1", ex.Message); + } + + [Fact] + public void ReadSequence_ThrowsInvalidOperationException_WhenPacketIsMissing() + { + // Arrange: same gap scenario as Read test above. + var stream = new MessageBusReadStream("seq"); + stream.SetLastPacketNumber(2); + stream.Write(new byte[] { 1 }, 0); + stream.Write(new byte[] { 3 }, 2); + ForceReceivedCount(stream, 3); + + // Act + Assert + var ex = Assert.Throws(() => stream.ReadSequence()); + Assert.Contains("missing packet 1", ex.Message); + } + + [Fact] + public void Read_HappyPath_ContiguousPackets_ReturnsAllBytes() + { + var stream = new MessageBusReadStream("seq"); + stream.SetLastPacketNumber(2); + stream.Write(new byte[] { 0x01, 0x02 }, 0); + stream.Write(new byte[] { 0x03 }, 1); + stream.Write(new byte[] { 0x04, 0x05 }, 2); + + Assert.True(stream.IsComplete()); + Assert.Equal(new byte[] { 0x01, 0x02, 0x03, 0x04, 0x05 }, stream.Read()); + } + + [Fact] + public void ReadSequence_HappyPath_ContiguousPackets_ReturnsAllBytes() + { + var stream = new MessageBusReadStream("seq"); + stream.SetLastPacketNumber(2); + stream.Write(new byte[] { 0x01, 0x02 }, 0); + stream.Write(new byte[] { 0x03 }, 1); + stream.Write(new byte[] { 0x04, 0x05 }, 2); + + Assert.True(stream.IsComplete()); + Assert.Equal(new byte[] { 0x01, 0x02, 0x03, 0x04, 0x05 }, stream.ReadSequence().ToArray()); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/MessageBusWriteStreamTests.cs b/src/ServiceConnect.UnitTests/Services/MessageBusWriteStreamTests.cs new file mode 100644 index 000000000..ff0362459 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/MessageBusWriteStreamTests.cs @@ -0,0 +1,524 @@ +using System.Reflection; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +public class MessageBusWriteStreamTests +{ + private readonly Mock _producer = new(); + private readonly List<(string Endpoint, Type Type, byte[] Payload, IReadOnlyDictionary? Headers)> _sends = []; + + public MessageBusWriteStreamTests() + { + _producer + .Setup(p => p.SendBytesAsync( + It.IsAny(), + It.IsAny(), + It.IsAny>(), + It.IsAny?>(), + It.IsAny())) + .Callback, IReadOnlyDictionary?, CancellationToken>((ep, type, bytes, headers, _) => + _sends.Add((ep, type, bytes.ToArray(), headers))) + .Returns(Task.CompletedTask); + } + + [Fact] + public async Task WriteAsync_SeedsSequenceIdHeader_AndPassesMessageTypeToProducer() + { + await using var stream = new MessageBusWriteStream(_producer.Object, "dest", typeof(FakeStreamMsg)); + + await stream.WriteAsync(new byte[] { 1, 2, 3, 4 }); + + var send = _sends.Single(); + Assert.Equal(typeof(FakeStreamMsg), send.Type); + Assert.False(string.IsNullOrWhiteSpace(send.Headers![HeaderKeys.SequenceId])); + // Type-reserved headers are stamped server-side by the producer, not seeded by the stream. + Assert.False(send.Headers!.ContainsKey(HeaderKeys.FullTypeName)); + Assert.False(send.Headers!.ContainsKey(HeaderKeys.TypeName)); + Assert.False(send.Headers!.ContainsKey(HeaderKeys.MessageType)); + } + + [Fact] + public async Task WriteAsync_SliceViaAsMemory_SendsCorrectBytes() + { + // WriteAsync accepts ReadOnlyMemory; callers slice via buffer.AsMemory(offset, count). + await using var stream = new MessageBusWriteStream(_producer.Object, "dest", typeof(FakeStreamMsg)); + var buffer = new byte[] { 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 }; + + await stream.WriteAsync(buffer.AsMemory(2, 4)); + + var captured = _sends.Single().Payload; + Assert.Equal(new byte[] { 12, 13, 14, 15 }, captured); + } + + [Fact] + public async Task WriteAsync_IncrementsPacketNumber_StartingAtZero() + { + await using var stream = new MessageBusWriteStream(_producer.Object, "dest", typeof(FakeStreamMsg)); + + await stream.WriteAsync(new byte[] { 1 }); + await stream.WriteAsync(new byte[] { 2 }); + await stream.WriteAsync(new byte[] { 3 }); + + Assert.Equal("0", _sends[0].Headers![HeaderKeys.PacketNumber]); + Assert.Equal("1", _sends[1].Headers![HeaderKeys.PacketNumber]); + Assert.Equal("2", _sends[2].Headers![HeaderKeys.PacketNumber]); + } + + [Fact] + public async Task WriteAsync_AfterClose_ThrowsObjectDisposedException() + { + await using var stream = new MessageBusWriteStream(_producer.Object, "dest", typeof(FakeStreamMsg)); + await stream.CloseAsync(); + + await Assert.ThrowsAsync(() => stream.WriteAsync(new byte[] { 1 })); + } + + [Fact] + public async Task CloseAsync_SendsEmptyPayloadWithLastPacketNumberHeader() + { + var stream = new MessageBusWriteStream(_producer.Object, "dest", typeof(FakeStreamMsg)); + await stream.WriteAsync(new byte[] { 1 }); + await stream.WriteAsync(new byte[] { 2 }); + + await stream.CloseAsync(); + + var closeSend = _sends.Last(); + Assert.Empty(closeSend.Payload); + Assert.Equal("2", closeSend.Headers![HeaderKeys.PacketNumber]); + Assert.Equal("2", closeSend.Headers![HeaderKeys.LastPacketNumber]); + } + + [Fact] + public async Task CloseAsync_IsIdempotent() + { + var stream = new MessageBusWriteStream(_producer.Object, "dest", typeof(FakeStreamMsg)); + + await stream.CloseAsync(); + await stream.CloseAsync(); + + // First CloseAsync sent exactly one close-marker; second call was a no-op. + Assert.Single(_sends); + Assert.Empty(_sends[0].Payload); + Assert.Contains(HeaderKeys.LastPacketNumber, _sends[0].Headers!.Keys); + } + + [Fact] + public async Task DisposeAsync_CallsCloseAsync() + { + var stream = new MessageBusWriteStream(_producer.Object, "dest", typeof(FakeStreamMsg)); + + await stream.DisposeAsync(); + + // DisposeAsync produced the close-marker send. + Assert.Single(_sends); + Assert.Empty(_sends[0].Payload); + Assert.Contains(HeaderKeys.LastPacketNumber, _sends[0].Headers!.Keys); + } + + [Fact] + public void CloseAsync_UsesInterlockedClosedFlag() + { + Assert.Null(typeof(MessageBusWriteStream).GetField("_closed", BindingFlags.Instance | BindingFlags.NonPublic)); + + var closedFlag = typeof(MessageBusWriteStream).GetField("_closedFlag", BindingFlags.Instance | BindingFlags.NonPublic); + Assert.NotNull(closedFlag); + Assert.Equal(typeof(int), closedFlag!.FieldType); + } + + [Fact] + public async Task WriteAsync_WhenSendFails_NextWriteThrows_AndDoesNotCallProducerAgain() + { + var failingProducer = new Mock(); + failingProducer + .Setup(p => p.SendBytesAsync( + It.IsAny(), + It.IsAny(), + It.IsAny>(), + It.IsAny?>(), + It.IsAny())) + .ThrowsAsync(new InvalidOperationException("transport down")); + + await using var stream = new MessageBusWriteStream(failingProducer.Object, "dest", typeof(FakeStreamMsg)); + + // First write surfaces the underlying failure. + var firstEx = await Assert.ThrowsAsync(() => stream.WriteAsync(new byte[] { 1 })); + Assert.Equal("transport down", firstEx.Message); + + // Second write must not attempt another send: a successful retry would consume + // packet number N+1, leaving packet N permanently missing from the reader's view. + var secondEx = await Assert.ThrowsAsync(() => stream.WriteAsync(new byte[] { 2 })); + Assert.Contains("faulted", secondEx.Message, StringComparison.OrdinalIgnoreCase); + + failingProducer.Verify( + p => p.SendBytesAsync( + It.IsAny(), + It.IsAny(), + It.IsAny>(), + It.IsAny?>(), + It.IsAny()), + Times.Once); + } + + [Fact] + public async Task CloseAsync_AfterSendFault_DoesNotSendClosePacket() + { + var failingProducer = new Mock(); + failingProducer + .Setup(p => p.SendBytesAsync( + It.IsAny(), + It.IsAny(), + It.IsAny>(), + It.IsAny?>(), + It.IsAny())) + .ThrowsAsync(new InvalidOperationException("transport down")); + + await using var stream = new MessageBusWriteStream(failingProducer.Object, "dest", typeof(FakeStreamMsg)); + + await Assert.ThrowsAsync(() => stream.WriteAsync(new byte[] { 1 })); + + // CloseAsync on a faulted stream must complete without throwing AND without sending + // a close packet — a close packet on a stream with a hole would set LastPacketNumber + // to a value the reader can never reach. + var ex = await Record.ExceptionAsync(() => stream.CloseAsync()); + Assert.Null(ex); + + failingProducer.Verify( + p => p.SendBytesAsync( + It.IsAny(), + It.IsAny(), + It.IsAny>(), + It.IsAny?>(), + It.IsAny()), + Times.Once); + } + + [Fact] + public async Task CloseAsync_FaultDuringDrain_DoesNotShipClosePacket() + { + // Race: WriteAsync passes _closeStarted, increments _packetNumber, awaits SendBytesAsync. + // CloseAsync starts concurrently — _faulted=0, falls through, enters the drain loop. + // SendBytesAsync then throws (set _faulted=1 → finally decrements _inFlightWrites). + // Drain exits cleanly, but _packetNumber now reflects a slot whose packet never shipped. + // Without re-checking _faulted after the drain, CloseAsync would emit a close packet + // declaring LastPacketNumber for the unreachable slot, leaving the reader unable to + // satisfy IsComplete. + var sendStarted = new TaskCompletionSource(); + var faultSend = new TaskCompletionSource(); + + var producer = new Mock(); + producer + .Setup(p => p.SendBytesAsync( + It.IsAny(), It.IsAny(), It.IsAny>(), + It.IsAny?>(), It.IsAny())) + .Returns(async () => + { + sendStarted.TrySetResult(); + await faultSend.Task.ConfigureAwait(false); + throw new InvalidOperationException("transport down"); + }); + + var stream = new MessageBusWriteStream(producer.Object, "dest", typeof(FakeStreamMsg)); + + var writeTask = stream.WriteAsync(new byte[] { 1, 2, 3 }); + + // Wait until the write has reserved its slot and is parked in SendBytesAsync. + await sendStarted.Task.WaitAsync(TimeSpan.FromSeconds(5)); + + // CloseAsync now enters the drain (since _inFlightWrites == 1). + var closeTask = stream.CloseAsync(); + + // Give CloseAsync a chance to advance into the drain loop before we trigger the fault. + // A short delay is sufficient — the drain spins on _inFlightWrites and yields via + // SpinOnce, so the close call observes _faulted=0 and reaches the drain quickly. + await Task.Delay(50); + + // Fault the in-flight send. WriteAsync's catch sets _faulted=1; finally decrements + // _inFlightWrites to 0. The drain exits and CloseAsync re-checks the fault flag. + faultSend.SetResult(); + + await Assert.ThrowsAsync(() => writeTask.WaitAsync(TimeSpan.FromSeconds(5))); + await closeTask.WaitAsync(TimeSpan.FromSeconds(5)); + + // Exactly one SendBytesAsync — the failed data packet. No close packet must ship, + // because its LastPacketNumber would point at the stranded slot. + producer.Verify(p => p.SendBytesAsync( + It.IsAny(), It.IsAny(), It.IsAny>(), + It.IsAny?>(), It.IsAny()), + Times.Once); + } + + [Fact] + public async Task WriteAsync_CancelledToken_ThrowsOperationCanceledException() + { + var stream = new MessageBusWriteStream(_producer.Object, "dest", typeof(FakeStreamMsg)); + + using var cts = new CancellationTokenSource(); + cts.Cancel(); + + await Assert.ThrowsAsync( + () => stream.WriteAsync(new byte[10], cts.Token)); + } + + [Fact] + public async Task WriteAsync_HeaderAllocationOrSendThrow_SetsFaultedFlag() + { + var producer = new Mock(); + var sendException = new InvalidOperationException("simulated post-increment throw"); + producer + .Setup(p => p.SendBytesAsync( + It.IsAny(), It.IsAny(), It.IsAny>(), + It.IsAny>(), It.IsAny())) + .ThrowsAsync(sendException); + + var stream = new MessageBusWriteStream(producer.Object, "queue", typeof(string)); + + await Assert.ThrowsAsync(() => + stream.WriteAsync(new byte[] { 1, 2, 3 }, CancellationToken.None)); + + var secondAttempt = await Assert.ThrowsAsync(() => + stream.WriteAsync(new byte[] { 4, 5, 6 }, CancellationToken.None)); + Assert.Contains("faulted", secondAttempt.Message, StringComparison.OrdinalIgnoreCase); + } + + [Fact] + public async Task CloseAsync_TokenCancelledDuringClosePacketSend_PropagatesOce() + { + // The close-packet send blocks until the token is cancelled. If CloseAsync does NOT + // forward the token, the mock's WaitAsync(ct) receives CancellationToken.None and never + // unblocks — the test would hang indefinitely. CloseAsync must forward cancellationToken + // through to the producer's send call. + var sendStarted = new TaskCompletionSource(); + var sendBlock = new TaskCompletionSource(); + + var producer = new Mock(); + producer + .Setup(p => p.SendBytesAsync( + It.IsAny(), It.IsAny(), It.IsAny>(), + It.IsAny>(), It.IsAny())) + .Returns(async (string ep, Type t, ReadOnlyMemory body, IReadOnlyDictionary? h, CancellationToken ct) => + { + sendStarted.SetResult(); + // WaitAsync(ct) only cancels if ct is the real token; if ct is CancellationToken.None it blocks forever. + await sendBlock.Task.WaitAsync(ct).ConfigureAwait(false); + }); + + var stream = new MessageBusWriteStream(producer.Object, "queue", typeof(string)); + using var cts = new CancellationTokenSource(); + + var closeTask = stream.CloseAsync(cts.Token); + await sendStarted.Task; + + // Cancel the token — only propagates to SendBytesAsync if CloseAsync forwarded it. + cts.Cancel(); + + await Assert.ThrowsAnyAsync(() => closeTask.WaitAsync(TimeSpan.FromSeconds(5))); + } + + [Fact] + public async Task CloseAsync_RetriesAfterTransientSendFailure() + { + // Pre-fix CloseAsync set _closedFlag=1 on entry and a SendBytesAsync throw left + // the flag set with no close packet shipped — retry short-circuited. Post-fix + // the flag is set only after SendBytesAsync returns; a transient failure leaves + // _closedFlag=0 so the retry can complete the close. + var attempts = 0; + var producer = new Mock(); + producer + .Setup(p => p.SendBytesAsync( + It.IsAny(), It.IsAny(), It.IsAny>(), + It.IsAny?>(), It.IsAny())) + .Returns(() => + { + attempts++; + if (attempts == 1) + { + throw new InvalidOperationException("transient"); + } + return Task.CompletedTask; + }); + + var stream = new MessageBusWriteStream(producer.Object, "dest", typeof(FakeStreamMsg)); + + // First close attempt fails. + await Assert.ThrowsAsync(() => stream.CloseAsync()); + + // Second close attempt succeeds. Setting _closedFlag only after a successful + // send means the retry can still emit the close packet; a CAS-set on entry would + // short-circuit here and silently drop the close packet on the wire. + await stream.CloseAsync(); + + Assert.Equal(2, attempts); + } + + [Fact] + public async Task WriteAsync_AfterFailedCloseAttempt_StillRejected() + { + // _closeStarted is set on first CloseAsync entry and never reset. Even if the + // close itself failed, WriteAsync must reject — a stream that began closing + // cannot un-close. This mirrors the fault-flag's permanence. + var producer = new Mock(); + producer + .Setup(p => p.SendBytesAsync( + It.IsAny(), It.IsAny(), It.IsAny>(), + It.IsAny?>(), It.IsAny())) + .ThrowsAsync(new InvalidOperationException("transient")); + + var stream = new MessageBusWriteStream(producer.Object, "dest", typeof(FakeStreamMsg)); + + await Assert.ThrowsAsync(() => stream.CloseAsync()); + + // Subsequent Write must reject even though _closedFlag is still 0. + await Assert.ThrowsAsync(() => stream.WriteAsync(new byte[] { 1 })); + } + + [Fact] + public async Task CloseAsync_SuccessfulSecondCallIsIdempotent() + { + // After a successful close, a second CloseAsync call is a no-op (no second + // close packet shipped). + var stream = new MessageBusWriteStream(_producer.Object, "dest", typeof(FakeStreamMsg)); + await stream.WriteAsync(new byte[] { 1 }); + + await stream.CloseAsync(); + await stream.CloseAsync(); + + // One close packet, not two. + var closes = _sends.Where(s => s.Headers!.ContainsKey(HeaderKeys.LastPacketNumber)).ToList(); + Assert.Single(closes); + } + + [Fact] + public async Task CloseAsync_CancelledDuringDrain_ThrowsOperationCanceledException() + { + // A producer whose SendBytesAsync never completes simulates a stalled in-flight write. + var tcs = new TaskCompletionSource(); + var stalledProducer = new Mock(); + stalledProducer + .Setup(p => p.SendBytesAsync( + It.IsAny(), + It.IsAny(), + It.IsAny>(), + It.IsAny?>(), + It.IsAny())) + .Returns(tcs.Task.ContinueWith(_ => { })); + + var stream = new MessageBusWriteStream(stalledProducer.Object, "dest", typeof(FakeStreamMsg)); + + // Fire off a write that will never complete, keeping _inFlightWrites > 0. + _ = stream.WriteAsync(new byte[] { 1 }); + + // CloseAsync must abort the drain when the token is cancelled rather than + // waiting up to the full 30-second CloseDrainTimeout. + // Task.Delay surfaces cancellation as TaskCanceledException (subtype of OperationCanceledException). + using var cts = new CancellationTokenSource(TimeSpan.FromMilliseconds(200)); + await Assert.ThrowsAnyAsync(() => stream.CloseAsync(cts.Token)); + + // Unblock the stalled write so the background task can complete cleanly. + tcs.SetResult(true); + } + + [Fact] + public async Task DisposeAsync_WhenCloseGateIsWedged_CompletesAfterTimeout() + { + // Verify that DisposeAsync does not park indefinitely when _closeInProgress is + // already held by a wedged holder. DisposeAsync must exit once the close budget + // elapses rather than spinning forever on CancellationToken.None. + // + // Uses the internal constructor to inject a short timeout (200 ms) so the test + // completes in well under a second instead of waiting the full 30-second budget. + var closeField = typeof(MessageBusWriteStream) + .GetField("_closeInProgress", BindingFlags.Instance | BindingFlags.NonPublic)!; + + var stream = new MessageBusWriteStream( + _producer.Object, "dest", typeof(FakeStreamMsg), + TimeProvider.System, TimeSpan.FromMilliseconds(200)); + + // Wedge the single-flight gate: simulate a holder that will never release. + closeField.SetValue(stream, 1); + + // DisposeAsync must return — the 200 ms CTS fires and the OCE is swallowed. + // Guard with a 5-second hard deadline so a regression parks xUnit rather than hanging. + await stream.DisposeAsync().AsTask().WaitAsync(TimeSpan.FromSeconds(5)); + } + + [Fact] + public async Task DisposeAsync_CloseSendThrowsTransportException_Swallows() + { + // Best-effort contract: DisposeAsync must not surface transport exceptions that + // CloseAsync's SendBytesAsync call can throw (broker unreachable, channel closed, + // etc.). Surfacing them through `await using` would make callers responsible for + // handling broker state they cannot act on at dispose time. + // Use a producer that succeeds on the data write but fails on the close-packet send. + var producer = new Mock(); + var callCount = 0; + producer + .Setup(p => p.SendBytesAsync( + It.IsAny(), + It.IsAny(), + It.IsAny>(), + It.IsAny?>(), + It.IsAny())) + .Returns(() => + { + callCount++; + // First call (data packet): succeed so the stream is not faulted. + // Second call (close packet): throw to exercise the DisposeAsync swallow. + if (callCount == 1) + { + return Task.CompletedTask; + } + throw new InvalidOperationException("simulated broker-unreachable on close"); + }); + + var stream = new MessageBusWriteStream( + producer.Object, + "test-q", + typeof(FakeStreamMsg), + TimeProvider.System, + TimeSpan.FromSeconds(30)); + + await stream.WriteAsync(new byte[] { 1, 2, 3 }); + + // Best-effort: must not throw despite the close-packet send failing. + await stream.DisposeAsync(); + } + + [Fact] + public async Task DisposeAsync_WhenDrainTimesOut_DoesNotLeakTimeoutException() + { + var producer = new Mock(); + // SendBytesAsync never completes within the test window — simulates a stalled writer. + var tcs = new TaskCompletionSource(); + producer + .Setup(p => p.SendBytesAsync(It.IsAny(), It.IsAny(), It.IsAny>(), It.IsAny>(), It.IsAny())) + .Returns(tcs.Task); + + var stream = new MessageBusWriteStream( + producer.Object, + "ep", + typeof(byte[]), + TimeProvider.System, + TimeSpan.FromMilliseconds(100)); // short drain timeout for test + + // Start a write that won't complete. + _ = stream.WriteAsync(new byte[] { 1 }); + + // Give the write a moment to register in _inFlightWrites. + await Task.Delay(20); + + // DisposeAsync must NOT throw despite the drain timeout firing. + await stream.DisposeAsync().AsTask().WaitAsync(TimeSpan.FromSeconds(5)); + + // Release the producer mock so the test ends cleanly. + tcs.SetResult(); + } +} + +file class FakeStreamMsg : Message +{ + public FakeStreamMsg() : base(Guid.NewGuid()) { } +} diff --git a/src/ServiceConnect.UnitTests/Services/MessageBusWriteStreamTimeProviderTests.cs b/src/ServiceConnect.UnitTests/Services/MessageBusWriteStreamTimeProviderTests.cs new file mode 100644 index 000000000..a18b86d59 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/MessageBusWriteStreamTimeProviderTests.cs @@ -0,0 +1,51 @@ +using Microsoft.Extensions.Time.Testing; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +public class MessageBusWriteStreamTimeProviderTests +{ + [Fact] + public async Task CloseAsync_DrainTimeoutHonoursInjectedTimeProvider() + { + var stalledProducer = new Mock(); + var tcs = new TaskCompletionSource(); + + // Block SendBytesAsync so _inFlightWrites stays above zero indefinitely, + // forcing the drain loop in CloseAsync to spin until the deadline fires. + stalledProducer + .Setup(p => p.SendBytesAsync( + It.IsAny(), + It.IsAny(), + It.IsAny>(), + It.IsAny?>(), + It.IsAny())) + .Returns(tcs.Task.ContinueWith(_ => { })); + + var fakeTime = new FakeTimeProvider(); + + var stream = new MessageBusWriteStream( + stalledProducer.Object, "endpoint-x", typeof(byte[]), fakeTime); + + // Fire a write that will never complete, keeping _inFlightWrites > 0. + _ = stream.WriteAsync(new byte[] { 1, 2, 3 }); + + // Start the drain without awaiting: the deadline is captured from fakeTime + // (T+30s). The drain loop will spin until it yields, then do Task.Delay(10ms). + var closeTask = stream.CloseAsync(CancellationToken.None); + + // Give the spin loop time to capture the deadline and start its first + // Task.Delay(10ms), so advancing the clock afterwards puts us past the deadline + // on the next spin iteration. + await Task.Delay(50); + fakeTime.Advance(TimeSpan.FromSeconds(31)); + + await Assert.ThrowsAsync(() => closeTask); + + // Release the stalled write so the background task can terminate cleanly. + tcs.SetResult(true); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/MessageDispatcherReplyWithoutManagerTests.cs b/src/ServiceConnect.UnitTests/Services/MessageDispatcherReplyWithoutManagerTests.cs new file mode 100644 index 000000000..ea3668d5c --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/MessageDispatcherReplyWithoutManagerTests.cs @@ -0,0 +1,150 @@ +using System.Text; +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using ServiceConnect.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Services; +using ServiceConnect.Services.Processors; +using ServiceConnect.UnitTests.Fakes.Messages; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +/// +/// Pins the contract that when a reply-shaped message (ResponseMessageId header +/// present) arrives at a bus with no ReplyProcessor / IRequestReplyManager registered, +/// the dispatcher must ack-and-drop rather than routing the payload to the regular +/// handler matching its CLR type. A regular handler running against a reply payload +/// would receive data correlated to a different request — a genuine correctness gap. +/// +public sealed class MessageDispatcherReplyWithoutManagerTests +{ + private readonly Mock _mockFilterPipeline = new(); + + public MessageDispatcherReplyWithoutManagerTests() + { + _mockFilterPipeline + .Setup(f => f.ExecuteBeforeConsumingFiltersAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(FilterAction.Continue); + _mockFilterPipeline + .Setup(f => f.ExecuteAfterConsumingFiltersAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(FilterAction.Continue); + _mockFilterPipeline + .Setup(f => f.ExecuteOnConsumedSuccessfullyFiltersAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(FilterAction.Continue); + } + + [Fact] + public async Task DispatchAsync_ReplyHeaderPresentNoReplyProcessor_AcksAndDoesNotInvokeRegularHandler() + { + // Arrange — build a dispatcher whose processor list contains NO ReplyProcessor but + // does contain a regular handler processor that would normally handle FakeMessage1. + // The new guard must short-circuit before RunProcessors is reached. + var handlerInvoked = false; + var handlerProcessorMock = new Mock(); + handlerProcessorMock.SetupGet(p => p.RunBeforeDeserialization).Returns(false); + handlerProcessorMock + .Setup(p => p.ProcessAsync( + It.IsAny>(), + It.IsAny(), + It.IsAny(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .Callback(() => handlerInvoked = true) + .ReturnsAsync(ProcessResult.Handled); + + // FakeMessage1 is registered as a known type, simulating a CLR type that has a + // regular handler registration. Without the fix this would cause the handler to run. + var dispatcher = BuildDispatcher(processors: [handlerProcessorMock.Object]); + + var headers = new Dictionary(StringComparer.Ordinal) + { + [HeaderKeys.FullTypeName] = Encoding.UTF8.GetBytes(typeof(FakeMessage1).AssemblyQualifiedName!), + [HeaderKeys.ResponseMessageId] = Encoding.UTF8.GetBytes(Guid.NewGuid().ToString()), + }; + + // Act + var result = await dispatcher.DispatchAsync( + ReadOnlyMemory.Empty, + typeof(FakeMessage1).AssemblyQualifiedName!, + headers, + CancellationToken.None); + + // Assert — ack-and-drop, no regular handler ran. + Assert.True(result.Success); + Assert.False(result.NotHandled); + Assert.False(handlerInvoked, "Regular handler must NOT be invoked for a reply-shaped message when no ReplyProcessor is registered."); + } + + [Fact] + public async Task DispatchAsync_ReplyHeaderAbsent_NoReplyProcessor_DispatchesNormally() + { + // Sanity check: without reply headers the guard must not fire even when there is + // no ReplyProcessor — the message should reach the regular handler. + var handlerInvoked = false; + var handlerProcessorMock = new Mock(); + handlerProcessorMock.SetupGet(p => p.RunBeforeDeserialization).Returns(false); + handlerProcessorMock + .Setup(p => p.ProcessAsync( + It.IsAny>(), + It.IsAny(), + It.IsAny(), + It.IsAny>(), + It.IsAny(), + It.IsAny())) + .Callback(() => handlerInvoked = true) + .ReturnsAsync(ProcessResult.Handled); + + var mockSerializer = new Mock(); + mockSerializer + .Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))) + .Returns(new FakeMessage1(Guid.NewGuid())); + + var dispatcher = BuildDispatcher(processors: [handlerProcessorMock.Object], serializer: mockSerializer.Object); + + var headers = new Dictionary(StringComparer.Ordinal) + { + [HeaderKeys.FullTypeName] = Encoding.UTF8.GetBytes(typeof(FakeMessage1).AssemblyQualifiedName!), + // No ResponseMessageId header. + }; + + var result = await dispatcher.DispatchAsync( + ReadOnlyMemory.Empty, + typeof(FakeMessage1).AssemblyQualifiedName!, + headers, + CancellationToken.None); + + Assert.True(result.Success); + Assert.True(handlerInvoked, "Regular handler must be invoked for a non-reply message."); + } + + private MessageDispatcher BuildDispatcher( + IEnumerable processors, + IMessageSerializer? serializer = null) + { + var sp = new ServiceCollection().BuildServiceProvider(); + + var registry = new MessageTypeRegistry(); + registry.Register(typeof(FakeMessage1)); + + var pipelineConfig = new Mock(); + pipelineConfig.Setup(p => p.MessageProcessingMiddleware).Returns([]); + + // Deliberately exclude ReplyProcessor — this is the misconfiguration under test. + var processorList = processors.ToList(); + + return new MessageDispatcher( + serializer ?? new Mock().Object, + _mockFilterPipeline.Object, + processorList, + NullLogger.Instance, + new Mock().Object, + pipelineConfig.Object, + sp.GetRequiredService(), + new ConsumeScopeAccessor(), + registry); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/MessageDispatcherTests.cs b/src/ServiceConnect.UnitTests/Services/MessageDispatcherTests.cs new file mode 100644 index 000000000..8259bae20 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/MessageDispatcherTests.cs @@ -0,0 +1,1114 @@ +using System; +using System.Collections.Generic; +using System.Text; +using System.Threading.Tasks; +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using ServiceConnect.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Services; +using ServiceConnect.Services.Processors; +using ServiceConnect.UnitTests.Fakes.Messages; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +file class TestDispatchHandler( + Action? onHandle = null, + Action? onContextReceived = null, + Exception? throwOnHandle = null) : IMessageHandler +{ + private readonly Action? _onHandle = onHandle; + private readonly Action? _onContextReceived = onContextReceived; + private readonly Exception? _throwOnHandle = throwOnHandle; + + public Task HandleAsync(FakeMessage1 message, IConsumeContext context, CancellationToken cancellationToken = default) + { + _onContextReceived?.Invoke(context); + if (_throwOnHandle != null) + { + throw _throwOnHandle; + } + + _onHandle?.Invoke(message); + return Task.CompletedTask; + } +} + +public class MessageDispatcherTests +{ + private readonly Mock _mockSerializer; + private readonly Mock _mockFilterPipeline; + private readonly Mock _mockBus; + private readonly IReplyStatusRequestReplyManager _replyManager; + + private static Dictionary MakeHeaders(string? responseMessageId = null) + { + var headers = new Dictionary + { + [HeaderKeys.FullTypeName] = Encoding.UTF8.GetBytes(typeof(FakeMessage1).AssemblyQualifiedName!) + }; + if (responseMessageId != null) + { + headers["ResponseMessageId"] = Encoding.UTF8.GetBytes(responseMessageId); + } + + return headers; + } + + public MessageDispatcherTests() + { + _mockSerializer = new Mock(); + _mockFilterPipeline = new Mock(); + _mockBus = new Mock(); + _replyManager = new TestDispatcherReplyManager(); + + // Default: filters don't block + _mockFilterPipeline.Setup(f => f.ExecuteBeforeConsumingFiltersAsync(It.IsAny(), It.IsAny())).ReturnsAsync(FilterAction.Continue); + _mockFilterPipeline.Setup(f => f.ExecuteAfterConsumingFiltersAsync(It.IsAny(), It.IsAny())).ReturnsAsync(FilterAction.Continue); + _mockFilterPipeline.Setup(f => f.ExecuteOnConsumedSuccessfullyFiltersAsync(It.IsAny(), It.IsAny())).ReturnsAsync(FilterAction.Continue); + } + + private static Mock CreateEmptyPipelineConfig() + { + var mock = new Mock(); + mock.Setup(p => p.MessageProcessingMiddleware).Returns([]); + return mock; + } + + private static MessageTypeRegistry CreateRegistryWithTypes(params Type[] types) + { + var registry = new MessageTypeRegistry(); + foreach (var t in types) + { + registry.Register(t); + } + + return registry; + } + + private static MessageHandlerRegistry BuildHandlerRegistry(params (Type MessageType, Type HandlerType)[] entries) + { + var refs = entries + .Select(e => new HandlerReference { MessageType = e.MessageType, HandlerType = e.HandlerType }) + .ToList(); + return new MessageHandlerRegistry(refs, NullLogger.Instance); + } + + private MessageDispatcher CreateDispatcher(IServiceProvider serviceProvider, ILogger? logger = null) + { + var scopeAccessor = new ConsumeScopeAccessor(); + var handlerRegistry = BuildHandlerRegistry( + (typeof(FakeMessage1), typeof(TestDispatchHandler)), + (typeof(PolyBaseMessage), typeof(PolyBaseHandler))); + var processors = new List + { + new ReplyProcessor(_replyManager), + new HandlerProcessor(handlerRegistry, scopeAccessor, new Lazy(serviceProvider.GetRequiredService), new BusConfiguration(), new QueueConfiguration(), new ConsumeContextPool(), new ConsumeContextAccessor(), Microsoft.Extensions.Logging.Abstractions.NullLogger.Instance) + }; + + var registry = CreateRegistryWithTypes(typeof(FakeMessage1), typeof(PolyBaseMessage), typeof(PolyDerivedMessage)); + + return new MessageDispatcher( + _mockSerializer.Object, + _mockFilterPipeline.Object, + processors, + logger ?? NullLogger.Instance, + new Mock().Object, + CreateEmptyPipelineConfig().Object, + serviceProvider.GetRequiredService(), + scopeAccessor, + registry); + } + + private MessageDispatcher CreateDispatcherWithProcessors(IList processors) + { + var sp = new ServiceCollection().BuildServiceProvider(); + var registry = CreateRegistryWithTypes(typeof(FakeMessage1)); + return new MessageDispatcher( + _mockSerializer.Object, + _mockFilterPipeline.Object, + processors, + NullLogger.Instance, + new Mock().Object, + CreateEmptyPipelineConfig().Object, + sp.GetRequiredService(), + new ConsumeScopeAccessor(), + registry); + } + + [Fact] + public async Task Dispatch_DeserializesAndCallsHandler() + { + // Arrange + var message = new FakeMessage1(Guid.NewGuid()) { Username = "TestUser" }; + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))).Returns(message); + + FakeMessage1? receivedMessage = null; + var handler = new TestDispatchHandler(onHandle: m => receivedMessage = m); + + var services = new ServiceCollection(); + services.AddSingleton>(handler); + services.AddSingleton(_mockBus.Object); + var sp = services.BuildServiceProvider(); + + var dispatcher = CreateDispatcher(sp); + var headers = MakeHeaders(); + var messageBytes = new byte[] { 1, 2, 3 }; + + // Act + var result = await dispatcher.DispatchAsync(messageBytes, "FakeMessage1", headers); + + // Assert + Assert.True(result.Success); + Assert.NotNull(receivedMessage); + Assert.Equal("TestUser", receivedMessage.Username); + _mockSerializer.Verify(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1)), Times.Once); + } + + [Fact] + public async Task DispatchAsync_OnHandlerSuccess_InvokesOnConsumedSuccessfullyFilters() + { + // Arrange — copied verbatim from Dispatch_DeserializesAndCallsHandler + var message = new FakeMessage1(Guid.NewGuid()) { Username = "TestUser" }; + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))).Returns(message); + + FakeMessage1? receivedMessage = null; + var handler = new TestDispatchHandler(onHandle: m => receivedMessage = m); + + var services = new ServiceCollection(); + services.AddSingleton>(handler); + services.AddSingleton(_mockBus.Object); + var sp = services.BuildServiceProvider(); + + var dispatcher = CreateDispatcher(sp); + var headers = MakeHeaders(); + var messageBytes = new byte[] { 1, 2, 3 }; + + // Act + var result = await dispatcher.DispatchAsync(messageBytes, "FakeMessage1", headers); + + // Assert + Assert.True(result.Success); + Assert.False(result.NotHandled); + _mockFilterPipeline.Verify( + f => f.ExecuteOnConsumedSuccessfullyFiltersAsync(It.IsAny(), It.IsAny()), + Times.Once); + } + + [Fact] + public async Task DispatchAsync_OnHandlerThrow_DoesNotInvokeOnConsumedSuccessfullyFilters() + { + // Arrange — copied from Dispatch_HandlerThrows_ReturnsFailure + var message = new FakeMessage1(Guid.NewGuid()) { Username = "ErrorUser" }; + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))).Returns(message); + + var thrown = new InvalidOperationException("handler boom"); + var handler = new TestDispatchHandler(throwOnHandle: thrown); + + var services = new ServiceCollection(); + services.AddSingleton>(handler); + services.AddSingleton(_mockBus.Object); + var sp = services.BuildServiceProvider(); + + var dispatcher = CreateDispatcher(sp); + var headers = MakeHeaders(); + var messageBytes = new byte[] { 1, 2, 3 }; + + // Act + var result = await dispatcher.DispatchAsync(messageBytes, "FakeMessage1", headers); + + // Assert + Assert.False(result.Success); + Assert.NotNull(result.Exception); + // HandlerProcessor wraps handler exceptions in AggregateException; the original is an inner exception. + var aggregate = Assert.IsType(result.Exception); + Assert.Same(thrown, aggregate.InnerException); + _mockFilterPipeline.Verify( + f => f.ExecuteOnConsumedSuccessfullyFiltersAsync(It.IsAny(), It.IsAny()), + Times.Never); + // The existing finally-block behaviour is unchanged: AfterConsumingFilters still runs. + _mockFilterPipeline.Verify( + f => f.ExecuteAfterConsumingFiltersAsync(It.IsAny(), It.IsAny()), + Times.Once); + } + + [Fact] + public async Task DispatchAsync_WhenNotHandled_DoesNotInvokeOnConsumedSuccessfullyFilters() + { + // Arrange — copied from Dispatch_NoProcessorHandlesMessage_ReturnsNotHandled + // Empty processor list → NotHandled=true. The on-success stage must NOT be invoked + // even though Success=true (NotHandled=true acks-and-drops without recording). + _mockSerializer + .Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))) + .Returns(new FakeMessage1(Guid.NewGuid())); + + var dispatcher = CreateDispatcherWithProcessors([]); + var headers = MakeHeaders(); + + // Act + var result = await dispatcher.DispatchAsync(new byte[] { 1, 2, 3 }, "FakeMessage1", headers); + + // Assert + Assert.True(result.Success); + Assert.True(result.NotHandled); + _mockFilterPipeline.Verify( + f => f.ExecuteOnConsumedSuccessfullyFiltersAsync(It.IsAny(), It.IsAny()), + Times.Never); + // Existing finally-block behaviour unchanged: AfterConsumingFilters still runs. + _mockFilterPipeline.Verify( + f => f.ExecuteAfterConsumingFiltersAsync(It.IsAny(), It.IsAny()), + Times.Once); + } + + [Fact] + public async Task DispatchAsync_OnSuccessFilterThrows_PropagatesAsFailure() + { + // Arrange — copied from DispatchAsync_OnHandlerSuccess_InvokesOnConsumedSuccessfullyFilters, + // but ExecuteOnConsumedSuccessfullyFiltersAsync is overridden to throw. + // The dispatcher's existing catch block turns this into Success=false. AfterConsumingFilters + // in the finally block must still run (existing behaviour unchanged). + var thrown = new InvalidOperationException("on-success boom"); + + _mockFilterPipeline + .Setup(f => f.ExecuteOnConsumedSuccessfullyFiltersAsync(It.IsAny(), It.IsAny())) + .ThrowsAsync(thrown); + + var message = new FakeMessage1(Guid.NewGuid()) { Username = "TestUser" }; + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))).Returns(message); + + FakeMessage1? receivedMessage = null; + var handler = new TestDispatchHandler(onHandle: m => receivedMessage = m); + + var services = new ServiceCollection(); + services.AddSingleton>(handler); + services.AddSingleton(_mockBus.Object); + var sp = services.BuildServiceProvider(); + + var dispatcher = CreateDispatcher(sp); + var headers = MakeHeaders(); + var messageBytes = new byte[] { 1, 2, 3 }; + + // Act + var result = await dispatcher.DispatchAsync(messageBytes, "FakeMessage1", headers); + + // Assert + Assert.False(result.Success); + Assert.Same(thrown, result.Exception); + _mockFilterPipeline.Verify( + f => f.ExecuteAfterConsumingFiltersAsync(It.IsAny(), It.IsAny()), + Times.Once); + } + + [Fact] + public async Task Dispatch_PassesConsumeContextToHandler() + { + // Arrange + var message = new FakeMessage1(Guid.NewGuid()) { Username = "ContextUser" }; + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))).Returns(message); + + // Capture properties during handler invocation — IConsumeContext becomes invalid + // after the handler returns (pool token check). We can't dereference it post-dispatch. + bool contextWasReceived = false; + IReadOnlyDictionary? capturedHeaders = null; + var handler = new TestDispatchHandler(onContextReceived: ctx => + { + contextWasReceived = ctx != null; + capturedHeaders = ctx?.Headers == null ? null : new Dictionary(ctx.Headers); + }); + + var services = new ServiceCollection(); + services.AddSingleton>(handler); + services.AddSingleton(_mockBus.Object); + var sp = services.BuildServiceProvider(); + + var dispatcher = CreateDispatcher(sp); + var headers = MakeHeaders(); + var messageBytes = new byte[] { 1, 2, 3 }; + + // Act + var result = await dispatcher.DispatchAsync(messageBytes, "FakeMessage1", headers); + + // Assert + Assert.True(result.Success); + Assert.True(contextWasReceived); + Assert.NotNull(capturedHeaders); + Assert.Equal(headers, capturedHeaders); + } + + [Fact] + public async Task Dispatch_BeforeConsumingFilterBlocks_HandlerNotCalled() + { + // Arrange + var message = new FakeMessage1(Guid.NewGuid()) { Username = "BlockedUser" }; + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))).Returns(message); + _mockFilterPipeline.Setup(f => f.ExecuteBeforeConsumingFiltersAsync(It.IsAny(), It.IsAny())).ReturnsAsync(FilterAction.Stop); + + bool handlerCalled = false; + var handler = new TestDispatchHandler(onHandle: _ => handlerCalled = true); + + var services = new ServiceCollection(); + services.AddSingleton>(handler); + services.AddSingleton(_mockBus.Object); + var sp = services.BuildServiceProvider(); + + var dispatcher = CreateDispatcher(sp); + var headers = MakeHeaders(); + var messageBytes = new byte[] { 1, 2, 3 }; + + // Act + var result = await dispatcher.DispatchAsync(messageBytes, "FakeMessage1", headers); + + // Assert + Assert.True(result.Success); + Assert.False(handlerCalled); + } + + [Fact] + public async Task Dispatch_ResponseMessage_RoutesToReplyManager() + { + // Arrange + var replyId = Guid.NewGuid().ToString(); + var messageBytes = new byte[] { 1, 2, 3 }; + var headers = MakeHeaders(responseMessageId: replyId); + + var services = new ServiceCollection(); + var sp = services.BuildServiceProvider(); + + var dispatcher = CreateDispatcher(sp); + + // Act + var result = await dispatcher.DispatchAsync(messageBytes, "FakeMessage1", headers); + + // Assert + Assert.True(result.Success); + var replyManager = Assert.IsType(_replyManager); + Assert.Equal(replyId, replyManager.LastMessageId); + Assert.Equal(typeof(FakeMessage1), replyManager.LastMessageType); + _mockSerializer.Verify(s => s.Deserialize(It.IsAny>(), It.IsAny()), Times.Never); + _mockFilterPipeline.Verify(f => f.ExecuteAfterConsumingFiltersAsync(It.IsAny(), It.IsAny()), Times.Once); + } + + [Fact] + public async Task Dispatch_ResponseMessage_Handled_InvokesOnConsumedSuccessfullyFilters() + { + // The reply-handled branch must invoke OnConsumedSuccessfully filters so audit and + // telemetry filters that count successful consumes see reply messages too — the + // non-reply success path already does this. + var replyId = Guid.NewGuid().ToString(); + var headers = MakeHeaders(responseMessageId: replyId); + + var dispatcher = CreateDispatcher(new ServiceCollection().BuildServiceProvider()); + + var result = await dispatcher.DispatchAsync(new byte[] { 1, 2, 3 }, "FakeMessage1", headers); + + Assert.True(result.Success); + Assert.Equal(replyId, Assert.IsType(_replyManager).LastMessageId); + _mockFilterPipeline.Verify( + f => f.ExecuteOnConsumedSuccessfullyFiltersAsync(It.IsAny(), It.IsAny()), + Times.Once); + } + + [Fact] + public async Task Dispatch_ResponseMessage_UntrackedReply_StillInvokesOnConsumedSuccessfullyFilters() + { + // The reply-discarded branch (no pending request matched) must still invoke the + // success-filter pipeline: the dispatcher acks the broker, so by the user-facing + // contract the message was successfully consumed. + var replyId = Guid.NewGuid().ToString(); + var headers = MakeHeaders(responseMessageId: replyId); + Assert.IsType(_replyManager).ShouldHandleReplies = false; + + var dispatcher = CreateDispatcher(new ServiceCollection().BuildServiceProvider()); + + var result = await dispatcher.DispatchAsync(new byte[] { 1, 2, 3 }, "FakeMessage1", headers); + + Assert.True(result.Success); + _mockFilterPipeline.Verify( + f => f.ExecuteOnConsumedSuccessfullyFiltersAsync(It.IsAny(), It.IsAny()), + Times.Once); + } + + [Fact] + public async Task Dispatch_ResponseMessage_BlockedByBeforeConsumingFilter_DoesNotReachReplyManager() + { + var replyId = Guid.NewGuid().ToString(); + var headers = MakeHeaders(responseMessageId: replyId); + _mockFilterPipeline + .Setup(f => f.ExecuteBeforeConsumingFiltersAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(FilterAction.Stop); + _mockSerializer + .Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))) + .Returns(new FakeMessage1(Guid.NewGuid())); + + var dispatcher = CreateDispatcher(new ServiceCollection().BuildServiceProvider()); + + var result = await dispatcher.DispatchAsync(new byte[] { 1, 2, 3 }, "FakeMessage1", headers); + + Assert.True(result.Success); + Assert.Equal(0, Assert.IsType(_replyManager).CallCount); + } + + // ---------------- Pre-deserialization processor filter coverage ---------------- + + [Fact] + public async Task Dispatch_PreDeserProcessor_RunsAfterBeforeFilter() + { + // Before-filters must run before pre-deserialization processors so nothing + // — including StreamProcessor-style pre-deser handling — can bypass the + // filter gate. + var order = new List(); + _mockFilterPipeline + .Setup(f => f.ExecuteBeforeConsumingFiltersAsync(It.IsAny(), It.IsAny())) + .Callback(() => order.Add("before-filter")) + .ReturnsAsync(FilterAction.Continue); + + var preDeser = new OrderRecordingPreDeserProcessor(order); + var dispatcher = CreateDispatcherWithProcessors([preDeser]); + + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))) + .Returns(new FakeMessage1(Guid.NewGuid())); + + await dispatcher.DispatchAsync(new byte[] { 1, 2, 3 }, "FakeMessage1", MakeHeaders()); + + Assert.Equal("before-filter", order[0]); + Assert.Equal("pre-deser-processor", order[1]); + } + + [Fact] + public async Task Dispatch_PreDeserProcessor_BlockedByBeforeFilter_DoesNotRun() + { + // A blocking before-filter must prevent pre-deserialization processors + // from running at all, so no processor can slip past the filter gate + // and observe or handle a message the filter rejected. + _mockFilterPipeline + .Setup(f => f.ExecuteBeforeConsumingFiltersAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(FilterAction.Stop); + + var preDeser = new OrderRecordingPreDeserProcessor([]); + var dispatcher = CreateDispatcherWithProcessors([preDeser]); + + var result = await dispatcher.DispatchAsync(new byte[] { 1, 2, 3 }, "FakeMessage1", MakeHeaders()); + + Assert.True(result.Success); + Assert.Equal(0, preDeser.CallCount); + } + + [Fact] + public async Task Dispatch_PreDeserProcessor_Handled_StillRunsAfterFilter() + { + // When a pre-deser processor reports Handled (e.g., stream packet accepted), + // after-consuming filters must still fire — they were being skipped when + // the processor returned before the before-filter step. + var preDeser = new OrderRecordingPreDeserProcessor([]) { ReturnHandled = true }; + var dispatcher = CreateDispatcherWithProcessors([preDeser]); + + var result = await dispatcher.DispatchAsync(new byte[] { 1, 2, 3 }, "FakeMessage1", MakeHeaders()); + + Assert.True(result.Success); + _mockFilterPipeline.Verify( + f => f.ExecuteAfterConsumingFiltersAsync(It.IsAny(), It.IsAny()), + Times.Once); + } + + [Fact] + public async Task Dispatch_PreDeserProcessor_Handled_SkipsDeserialization() + { + // Pre-deser Handled return short-circuits dispatch before deserialization, + // keeping the middleware asymmetry (middleware requires a deserialized message). + var preDeser = new OrderRecordingPreDeserProcessor([]) { ReturnHandled = true }; + var dispatcher = CreateDispatcherWithProcessors([preDeser]); + + await dispatcher.DispatchAsync(new byte[] { 1, 2, 3 }, "FakeMessage1", MakeHeaders()); + + _mockSerializer.Verify( + s => s.Deserialize(It.IsAny>(), It.IsAny()), + Times.Never); + } + + [Fact] + public async Task Dispatch_ResponseMessage_WithUnknownReplyId_ReturnsSuccess() + { + // Untracked replies return Success=true so the dispatcher silently acks stale or + // duplicate replies and avoids spurious retry/DLQ churn. After-consuming filters + // must still run on the message. + var replyId = Guid.NewGuid().ToString(); + var headers = MakeHeaders(responseMessageId: replyId); + Assert.IsType(_replyManager).ShouldHandleReplies = false; + _mockSerializer + .Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))) + .Returns(new FakeMessage1(Guid.NewGuid())); + + var dispatcher = CreateDispatcher(new ServiceCollection().BuildServiceProvider()); + + var result = await dispatcher.DispatchAsync(new byte[] { 1, 2, 3 }, "FakeMessage1", headers); + + Assert.True(result.Success); + _mockFilterPipeline.Verify(f => f.ExecuteAfterConsumingFiltersAsync(It.IsAny(), It.IsAny()), Times.Once); + } + + [Fact] + public async Task Dispatch_ResponseMessage_WithUnregisteredReplyType_RoutesToReplyManagerAsMessage() + { + // Unregistered but loadable type: reply traffic must resolve to typeof(Message), not the wire type. + var replyId = Guid.NewGuid().ToString(); + var headers = new Dictionary + { + [HeaderKeys.FullTypeName] = Encoding.UTF8.GetBytes(typeof(UnregisteredReplyMessage).AssemblyQualifiedName!), + [HeaderKeys.ResponseMessageId] = Encoding.UTF8.GetBytes(replyId) + }; + + var dispatcher = CreateDispatcher(new ServiceCollection().BuildServiceProvider()); + + var result = await dispatcher.DispatchAsync(new byte[] { 1, 2, 3 }, nameof(UnregisteredReplyMessage), headers); + + Assert.True(result.Success); + var replyManager = Assert.IsType(_replyManager); + Assert.Equal(replyId, replyManager.LastMessageId); + Assert.Equal(typeof(Message), replyManager.LastMessageType); + _mockSerializer.Verify(s => s.Deserialize(It.IsAny>(), It.IsAny()), Times.Never); + } + + [Fact] + public async Task Dispatch_UntrackedReply_ReturnsSuccess_NotError() + { + // A reply that arrives after the caller has timed out (or is a duplicate) + // must be silently discarded — returning Success=false would drive nack/requeue + // and cause spurious retry/DLQ churn. The Debug log must carry the correlation id + // so operators can diagnose which request timed out. + var replyId = Guid.NewGuid().ToString(); + var headers = MakeHeaders(responseMessageId: replyId); + Assert.IsType(_replyManager).ShouldHandleReplies = false; + var mockLogger = new Mock>(); + + var dispatcher = CreateDispatcher(new ServiceCollection().BuildServiceProvider(), mockLogger.Object); + + var result = await dispatcher.DispatchAsync(new byte[] { 1, 2, 3 }, "FakeMessage1", headers); + + Assert.True(result.Success); + Assert.Null(result.Exception); + mockLogger.Verify( + x => x.Log( + LogLevel.Debug, + It.IsAny(), + It.Is((v, _) => v.ToString()!.Contains(replyId)), + null, + It.IsAny>()), + Times.Once); + } + + [Fact] + public async Task Dispatch_ResponseMessage_WithUnloadableReplyType_RoutesToReplyManager() + { + var replyId = Guid.NewGuid().ToString(); + var headers = new Dictionary + { + [HeaderKeys.FullTypeName] = Encoding.UTF8.GetBytes("Missing.Namespace.MissingReply, Missing.Assembly"), + [HeaderKeys.ResponseMessageId] = Encoding.UTF8.GetBytes(replyId) + }; + + var dispatcher = CreateDispatcher(new ServiceCollection().BuildServiceProvider()); + + var result = await dispatcher.DispatchAsync(new byte[] { 1, 2, 3 }, "MissingReply", headers); + + Assert.True(result.Success); + var replyManager = Assert.IsType(_replyManager); + Assert.Equal(replyId, replyManager.LastMessageId); + Assert.Equal(typeof(Message), replyManager.LastMessageType); + _mockSerializer.Verify(s => s.Deserialize(It.IsAny>(), It.IsAny()), Times.Never); + } + + [Fact] + public async Task Dispatch_HandlerThrows_ReturnsFailure() + { + // Arrange + var message = new FakeMessage1(Guid.NewGuid()) { Username = "ErrorUser" }; + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))).Returns(message); + + var thrownException = new InvalidOperationException("Handler failure"); + var handler = new TestDispatchHandler(throwOnHandle: thrownException); + + var services = new ServiceCollection(); + services.AddSingleton>(handler); + services.AddSingleton(_mockBus.Object); + var sp = services.BuildServiceProvider(); + + var dispatcher = CreateDispatcher(sp); + var headers = MakeHeaders(); + var messageBytes = new byte[] { 1, 2, 3 }; + + // Act + var result = await dispatcher.DispatchAsync(messageBytes, "FakeMessage1", headers); + + // Assert + Assert.False(result.Success); + Assert.NotNull(result.Exception); + } + + [Fact] + public async Task Dispatch_NoHandler_ReturnsSuccess() + { + // Arrange + var message = new FakeMessage1(Guid.NewGuid()) { Username = "NoHandler" }; + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))).Returns(message); + + // No handlers registered — use empty service provider with HandlerProcessor + var services = new ServiceCollection(); + services.AddSingleton(_mockBus.Object); + var sp = services.BuildServiceProvider(); + + var dispatcher = CreateDispatcher(sp); + var headers = MakeHeaders(); + var messageBytes = new byte[] { 1, 2, 3 }; + + // Act + var result = await dispatcher.DispatchAsync(messageBytes, "FakeMessage1", headers); + + // Assert + Assert.True(result.Success); + } + + [Fact] + public async Task DispatchAsync_HandlerThrowsOceDuringShutdown_PropagatesOce_AndDoesNotInvokeExceptionHandler() + { + // Arrange — same shape as Dispatch_HandlerThrows_ReturnsFailure, but the cancellation token + // is pre-cancelled to signal cooperative shutdown. The dispatcher must propagate the OCE + // rather than catching it and returning Success=false. + var message = new FakeMessage1(Guid.NewGuid()) { Username = "ShutdownUser" }; + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))).Returns(message); + + // The handler itself is never reached because HandlerProcessor.ThrowIfCancellationRequested + // fires first on a pre-cancelled token — the important property is that the OCE escapes the + // dispatcher catch block rather than being turned into Success=false. + var handler = new TestDispatchHandler(onHandle: _ => { }); + + var services = new ServiceCollection(); + services.AddSingleton>(handler); + services.AddSingleton(_mockBus.Object); + var sp = services.BuildServiceProvider(); + + var exceptionHandlerInvocations = 0; + var mockConfig = new Mock(); + mockConfig.Setup(c => c.ExceptionHandler).Returns((Func)((ex, _) => { exceptionHandlerInvocations++; return ValueTask.CompletedTask; })); + + var scopeAccessor = new ConsumeScopeAccessor(); + var handlerRegistry = BuildHandlerRegistry( + (typeof(FakeMessage1), typeof(TestDispatchHandler)), + (typeof(PolyBaseMessage), typeof(PolyBaseHandler))); + var processors = new List + { + new ReplyProcessor(_replyManager), + new HandlerProcessor(handlerRegistry, scopeAccessor, new Lazy(sp.GetRequiredService), new BusConfiguration(), new QueueConfiguration(), new ConsumeContextPool(), new ConsumeContextAccessor(), Microsoft.Extensions.Logging.Abstractions.NullLogger.Instance) + }; + var registry = CreateRegistryWithTypes(typeof(FakeMessage1), typeof(PolyBaseMessage), typeof(PolyDerivedMessage)); + var dispatcher = new MessageDispatcher( + _mockSerializer.Object, + _mockFilterPipeline.Object, + processors, + NullLogger.Instance, + mockConfig.Object, + CreateEmptyPipelineConfig().Object, + sp.GetRequiredService(), + scopeAccessor, + registry); + + var headers = MakeHeaders(); + var messageBytes = new byte[] { 1, 2, 3 }; + + using var cts = new CancellationTokenSource(); + cts.Cancel(); + + // Act & Assert — OCE escapes (not swallowed as Success=false) + await Assert.ThrowsAsync(() => + dispatcher.DispatchAsync(messageBytes, "FakeMessage1", headers, cts.Token)); + + Assert.Equal(0, exceptionHandlerInvocations); + _mockFilterPipeline.Verify( + f => f.ExecuteAfterConsumingFiltersAsync(It.IsAny(), It.IsAny()), + Times.Once); + } + + [Fact] + public async Task Dispatch_DerivedMessageType_InvokesBaseTypeHandler() + { + // Arrange + var message = new PolyDerivedMessage(Guid.NewGuid()) { Content = "base", Extra = "derived" }; + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(PolyDerivedMessage))).Returns(message); + + var handler = new PolyBaseHandler(); + + var services = new ServiceCollection(); + services.AddSingleton>(handler); + services.AddSingleton(_mockBus.Object); + var sp = services.BuildServiceProvider(); + + var headers = new Dictionary + { + [HeaderKeys.FullTypeName] = Encoding.UTF8.GetBytes(typeof(PolyDerivedMessage).AssemblyQualifiedName!) + }; + + var dispatcher = CreateDispatcher(sp); + var messageBytes = new byte[] { 1, 2, 3 }; + + // Act + var result = await dispatcher.DispatchAsync(messageBytes, "PolyDerivedMessage", headers); + + // Assert + Assert.True(result.Success); + Assert.True(handler.Invoked); + } + + [Fact] + public async Task Dispatch_NoProcessorHandlesMessage_ReturnsNotHandled() + { + // Registered type, serialised successfully, but no processor claims it. The dispatcher + // reports Success=true so the consumer acks the broker, but flags NotHandled so the + // host can DLQ it when DeadLetterUnhandledMessages is enabled. + _mockSerializer + .Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))) + .Returns(new FakeMessage1(Guid.NewGuid())); + + var dispatcher = CreateDispatcherWithProcessors([]); + var headers = MakeHeaders(); + + var result = await dispatcher.DispatchAsync(new byte[] { 1, 2, 3 }, "FakeMessage1", headers); + + Assert.True(result.Success); + Assert.True(result.NotHandled); + } + + [Fact] + public async Task Dispatch_ProcessorHandlesMessage_DoesNotSetNotHandled() + { + _mockSerializer + .Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))) + .Returns(new FakeMessage1(Guid.NewGuid())); + + var processor = new AlwaysHandledProcessor(); + var dispatcher = CreateDispatcherWithProcessors([processor]); + var headers = MakeHeaders(); + + var result = await dispatcher.DispatchAsync(new byte[] { 1, 2, 3 }, "FakeMessage1", headers); + + Assert.True(result.Success); + Assert.False(result.NotHandled); + } + + [Fact] + public async Task Dispatch_UnregisteredType_ReturnsNotHandled() + { + // Unregistered types are a terminal condition — retrying never resolves them. + // The dispatcher routes them as not-handled (Success=true, NotHandled=true) so the + // consumer host acks and either dead-letters or drops, rather than nack/requeue looping + // through the full retry budget. + var emptyRegistry = new MessageTypeRegistry(); + var sp = new ServiceCollection().BuildServiceProvider(); + var scopeAccessor = new ConsumeScopeAccessor(); + var processors = new List + { + new ReplyProcessor(_replyManager), + new HandlerProcessor(BuildHandlerRegistry(), scopeAccessor, new Lazy(() => new Mock().Object), new BusConfiguration(), new QueueConfiguration(), new ConsumeContextPool(), new ConsumeContextAccessor(), Microsoft.Extensions.Logging.Abstractions.NullLogger.Instance) + }; + var dispatcher = new MessageDispatcher( + _mockSerializer.Object, + _mockFilterPipeline.Object, + processors, + NullLogger.Instance, + new Mock().Object, + CreateEmptyPipelineConfig().Object, + sp.GetRequiredService(), + scopeAccessor, + emptyRegistry); + + var headers = new Dictionary + { + [HeaderKeys.FullTypeName] = Encoding.UTF8.GetBytes(typeof(FakeMessage1).AssemblyQualifiedName!) + }; + + // Act + var result = await dispatcher.DispatchAsync(new byte[] { 1, 2, 3 }, "FakeMessage1", headers); + + // Assert + Assert.True(result.Success); + Assert.True(result.NotHandled); + } + + // ---------------- messageType parameter is authoritative ---------------- + + [Fact] + public async Task Dispatch_WithMessageTypeParameter_AndNoHeader_ResolvesFromParameter() + { + // Transport honours the IMessageDispatcher contract by passing the wire type + // name as the `messageType` parameter but does not stamp FullTypeName/TypeName. + var message = new FakeMessage1(Guid.NewGuid()) { Username = "FromParameter" }; + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))).Returns(message); + + FakeMessage1? receivedMessage = null; + var handler = new TestDispatchHandler(onHandle: m => receivedMessage = m); + var services = new ServiceCollection(); + services.AddSingleton>(handler); + services.AddSingleton(_mockBus.Object); + var sp = services.BuildServiceProvider(); + + var dispatcher = CreateDispatcher(sp); + var headers = new Dictionary(); // no FullTypeName, no TypeName + + var result = await dispatcher.DispatchAsync(new byte[] { 1, 2, 3 }, typeof(FakeMessage1).AssemblyQualifiedName!, headers); + + Assert.True(result.Success); + Assert.Same(message, receivedMessage); + } + + [Fact] + public async Task Dispatch_PrefersMessageTypeParameter_WhenBothProvided() + { + // Parameter = real registered type name. Header = bogus string. + // The parameter must win, so the handler is invoked. + var message = new FakeMessage1(Guid.NewGuid()) { Username = "ParameterWins" }; + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))).Returns(message); + + bool handlerCalled = false; + var handler = new TestDispatchHandler(onHandle: _ => handlerCalled = true); + var services = new ServiceCollection(); + services.AddSingleton>(handler); + services.AddSingleton(_mockBus.Object); + var sp = services.BuildServiceProvider(); + + var dispatcher = CreateDispatcher(sp); + var headers = new Dictionary + { + [HeaderKeys.FullTypeName] = Encoding.UTF8.GetBytes("Bogus.Type.That.Is.Not.Registered") + }; + + var result = await dispatcher.DispatchAsync(new byte[] { 1, 2, 3 }, typeof(FakeMessage1).AssemblyQualifiedName!, headers); + + Assert.True(result.Success); + Assert.True(handlerCalled); + } + + [Fact] + public async Task Dispatch_FallsBackToHeader_WhenMessageTypeParameterEmpty() + { + // Existing RabbitMQ-host path: host has already pulled FullTypeName from the + // header and passed it as messageType. But if a caller passes an empty/whitespace + // messageType, fall back to the header (unchanged behaviour for legacy transports). + var message = new FakeMessage1(Guid.NewGuid()) { Username = "FallbackFromHeader" }; + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))).Returns(message); + + bool handlerCalled = false; + var handler = new TestDispatchHandler(onHandle: _ => handlerCalled = true); + var services = new ServiceCollection(); + services.AddSingleton>(handler); + services.AddSingleton(_mockBus.Object); + var sp = services.BuildServiceProvider(); + + var dispatcher = CreateDispatcher(sp); + var headers = MakeHeaders(); // has FullTypeName + + var result = await dispatcher.DispatchAsync(new byte[] { 1, 2, 3 }, "", headers); + + Assert.True(result.Success); + Assert.True(handlerCalled); + } + + [Fact] + public async Task Dispatch_ReturnsFailure_WhenParameterAndHeadersBothMissing() + { + // No parameter, no FullTypeName header, no TypeName header — we log and return + // Success=false rather than throwing uncaught, so the broker can nack normally. + var dispatcher = CreateDispatcher(new ServiceCollection().BuildServiceProvider()); + var headers = new Dictionary(); + + var result = await dispatcher.DispatchAsync(new byte[] { 1, 2, 3 }, "", headers); + + Assert.False(result.Success); + Assert.IsType(result.Exception); + } + + // ---------------- Per-dispatch DI scope ---------------- + + [Fact] + public async Task Dispatch_CreatesFreshScope_AndDisposesAfterHandler() + { + // Per-message scope lifecycle: a scoped service resolved inside the dispatch + // must be the same instance across resolutions in that dispatch, and the scope + // must be disposed before Dispatch returns. + var message = new FakeMessage1(Guid.NewGuid()); + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))).Returns(message); + + var services = new ServiceCollection(); + services.AddSingleton>(new TestDispatchHandler()); + services.AddSingleton(_mockBus.Object); + services.AddScoped(); + var sp = services.BuildServiceProvider(); + + DisposableMarker? scopedFromProcessor1 = null; + DisposableMarker? scopedFromProcessor2 = null; + var scopeAccessor = new ConsumeScopeAccessor(); + var captureProcessor = new CapturingProcessor(scopedProvider => + { + scopedFromProcessor1 = scopedProvider.GetRequiredService(); + scopedFromProcessor2 = scopedProvider.GetRequiredService(); + }, scopeAccessor); + + var dispatcher = new MessageDispatcher( + _mockSerializer.Object, + _mockFilterPipeline.Object, + [captureProcessor], + NullLogger.Instance, + new Mock().Object, + CreateEmptyPipelineConfig().Object, + sp.GetRequiredService(), + scopeAccessor, + CreateRegistryWithTypes(typeof(FakeMessage1))); + + var result = await dispatcher.DispatchAsync(new byte[] { 1, 2, 3 }, "FakeMessage1", MakeHeaders()); + + Assert.True(result.Success); + Assert.NotNull(scopedFromProcessor1); + Assert.Same(scopedFromProcessor1, scopedFromProcessor2); + Assert.True(scopedFromProcessor1!.Disposed, "Scoped service should have been disposed when the dispatch scope exited."); + } + + [Fact] + public async Task Dispatch_CreatesDistinctScopes_AcrossDispatches() + { + // Two back-to-back dispatches must receive independent scopes — a cached + // middleware chain would pin the first scope for the life of the bus. + var message = new FakeMessage1(Guid.NewGuid()); + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))).Returns(message); + + var services = new ServiceCollection(); + services.AddSingleton>(new TestDispatchHandler()); + services.AddSingleton(_mockBus.Object); + services.AddScoped(); + var sp = services.BuildServiceProvider(); + + var captured = new List(); + var scopeAccessor = new ConsumeScopeAccessor(); + var captureProcessor = new CapturingProcessor(scopedProvider => + { + captured.Add(scopedProvider.GetRequiredService()); + }, scopeAccessor); + + var dispatcher = new MessageDispatcher( + _mockSerializer.Object, + _mockFilterPipeline.Object, + [captureProcessor], + NullLogger.Instance, + new Mock().Object, + CreateEmptyPipelineConfig().Object, + sp.GetRequiredService(), + scopeAccessor, + CreateRegistryWithTypes(typeof(FakeMessage1))); + + await dispatcher.DispatchAsync(new byte[] { 1 }, "FakeMessage1", MakeHeaders()); + await dispatcher.DispatchAsync(new byte[] { 1 }, "FakeMessage1", MakeHeaders()); + + Assert.Equal(2, captured.Count); + Assert.NotSame(captured[0], captured[1]); + Assert.True(captured[0].Disposed); + Assert.True(captured[1].Disposed); + } +} + +file class AlwaysHandledProcessor : IMessageProcessor +{ + public Task ProcessAsync( + ReadOnlyMemory messageBytes, + Type messageType, + object? message, + IDictionary headers, + Envelope envelope, + CancellationToken cancellationToken = default) + => Task.FromResult(ProcessResult.Handled); +} + +file class PolyBaseMessage(Guid correlationId) : Message(correlationId) +{ + public string Content { get; set; } = string.Empty; +} + +file class PolyDerivedMessage(Guid correlationId) : PolyBaseMessage(correlationId) +{ + public string Extra { get; set; } = string.Empty; +} + +file class PolyBaseHandler : IMessageHandler +{ + public bool Invoked { get; private set; } + public Task HandleAsync(PolyBaseMessage message, IConsumeContext context, CancellationToken cancellationToken = default) { Invoked = true; return Task.CompletedTask; } +} + +file sealed class UnregisteredReplyMessage(Guid correlationId) : Message(correlationId) +{ +} + +file sealed class DisposableMarker : IDisposable +{ + public bool Disposed { get; private set; } + public void Dispose() => Disposed = true; +} + +file sealed class CapturingProcessor(Action capture, ConsumeScopeAccessor scopeAccessor) : IMessageProcessor +{ + private readonly Action _capture = capture; + private readonly ConsumeScopeAccessor _scopeAccessor = scopeAccessor; + + public bool RunBeforeDeserialization => false; + + public Task ProcessAsync( + ReadOnlyMemory messageBytes, + Type messageType, + object? message, + IDictionary headers, + Envelope envelope, + CancellationToken cancellationToken = default) + { + _capture(_scopeAccessor.Current); + return Task.FromResult(ProcessResult.Handled); + } +} + +file sealed class TestDispatcherReplyManager : IReplyStatusRequestReplyManager +{ + public int CallCount { get; private set; } + public string? LastMessageId { get; private set; } + public Type? LastMessageType { get; private set; } + public bool ShouldHandleReplies { get; set; } = true; + + public bool TryProcessReply(string messageId, ReadOnlyMemory messageBytes, Type type) + { + CallCount++; + LastMessageId = messageId; + LastMessageType = type; + return ShouldHandleReplies; + } + + public bool IsTrackedRequest(string messageId) => false; +} + +file sealed class OrderRecordingPreDeserProcessor(List order) : IMessageProcessor +{ + private readonly List _order = order; + + public bool RunBeforeDeserialization => true; + public bool ReturnHandled { get; set; } + public int CallCount { get; private set; } + + public Task ProcessAsync( + ReadOnlyMemory messageBytes, + Type messageType, + object? message, + IDictionary headers, + Envelope envelope, + CancellationToken cancellationToken = default) + { + CallCount++; + _order.Add("pre-deser-processor"); + return Task.FromResult(ReturnHandled ? ProcessResult.Handled : ProcessResult.NotHandled); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/MessageDispatcherUnresolvedTypeTests.cs b/src/ServiceConnect.UnitTests/Services/MessageDispatcherUnresolvedTypeTests.cs new file mode 100644 index 000000000..b7d627002 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/MessageDispatcherUnresolvedTypeTests.cs @@ -0,0 +1,115 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging.Abstractions; +using Moq; +using ServiceConnect.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Services; +using ServiceConnect.Services.Processors; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +/// +/// Verifies that messages arriving with an unregistered type are routed as not-handled +/// rather than rejected with Success=false. Unregistered types are a terminal condition — +/// no amount of retrying will register the type — so burning the full retry budget through +/// nack/requeue is wasteful and risks filling the error queue with noise. The not-handled +/// path either dead-letters (when DeadLetterUnhandledMessages is enabled) or ack-and-drops, +/// which is the correct disposal strategy for a message the bus cannot process. +/// +public sealed class MessageDispatcherUnresolvedTypeTests +{ + private readonly Mock _mockSerializer = new(); + private readonly Mock _mockFilterPipeline = new(); + + public MessageDispatcherUnresolvedTypeTests() + { + _mockFilterPipeline + .Setup(f => f.ExecuteBeforeConsumingFiltersAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(FilterAction.Continue); + _mockFilterPipeline + .Setup(f => f.ExecuteAfterConsumingFiltersAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(FilterAction.Continue); + _mockFilterPipeline + .Setup(f => f.ExecuteOnConsumedSuccessfullyFiltersAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(FilterAction.Continue); + } + + [Fact] + public async Task DispatchAsync_UnresolvedType_NoResponseId_ReturnsNotHandled() + { + // Site 1: !typeResolvedFromRegistry && !hasResponseMessageId. + // An unregistered type is terminal — the dispatcher must route as not-handled + // instead of returning Success=false (which would drive nack/requeue → retry → DLQ burn). + var dispatcher = BuildDispatcher(replyManager: null); + + var headers = new Dictionary(StringComparer.Ordinal) + { + [HeaderKeys.FullTypeName] = System.Text.Encoding.UTF8.GetBytes("Foo.UnregisteredType"), + }; + + var result = await dispatcher.DispatchAsync( + new ReadOnlyMemory([1, 2, 3]), + "Foo.UnregisteredType", + headers, + CancellationToken.None); + + Assert.True(result.Success); + Assert.True(result.NotHandled); + } + + [Fact] + public async Task DispatchAsync_UnresolvedType_WithResponseId_ButNoReplyProcessor_AcksAndDrops() + { + // Site 2: !typeResolvedFromRegistry, hasResponseMessageId=true, but no ReplyProcessor + // in the processor list (replyProcessor is null). The reply-shape guard fires first + // (replyProcessor == null && hasResponseMessageId) and ack-and-drops — the payload was + // correlated to a request and must not be dispatched to a regular handler or treated as + // a not-handled message. Success=true, NotHandled=false. + var dispatcher = BuildDispatcher(replyManager: null, includeReplyProcessor: false); + + var headers = new Dictionary(StringComparer.Ordinal) + { + [HeaderKeys.FullTypeName] = System.Text.Encoding.UTF8.GetBytes("Foo.UnregisteredType"), + [HeaderKeys.ResponseMessageId] = System.Text.Encoding.UTF8.GetBytes(Guid.NewGuid().ToString()), + }; + + var result = await dispatcher.DispatchAsync( + new ReadOnlyMemory([1, 2, 3]), + "Foo.UnregisteredType", + headers, + CancellationToken.None); + + Assert.True(result.Success); + Assert.False(result.NotHandled); + } + + private MessageDispatcher BuildDispatcher( + IReplyStatusRequestReplyManager? replyManager, + bool includeReplyProcessor = true) + { + var sp = new ServiceCollection().BuildServiceProvider(); + var emptyRegistry = new MessageTypeRegistry(); // no types registered + + var pipelineConfig = new Mock(); + pipelineConfig.Setup(p => p.MessageProcessingMiddleware).Returns([]); + + var processors = new List(); + if (includeReplyProcessor && replyManager != null) + { + processors.Add(new ReplyProcessor(replyManager)); + } + + return new MessageDispatcher( + _mockSerializer.Object, + _mockFilterPipeline.Object, + processors, + NullLogger.Instance, + new Mock().Object, + pipelineConfig.Object, + sp.GetRequiredService(), + new ConsumeScopeAccessor(), + emptyRegistry); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/MessageTypeExchangeNameTests.cs b/src/ServiceConnect.UnitTests/Services/MessageTypeExchangeNameTests.cs new file mode 100644 index 000000000..a768f4509 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/MessageTypeExchangeNameTests.cs @@ -0,0 +1,42 @@ +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +public class MessageTypeExchangeNameTests +{ + public sealed class SampleMessage; + + [Fact] + public void From_ReturnsFullNameWithDotsRemoved() + { + // Master convention: the exchange/binding name is Type.FullName with the namespace + // dots removed (no hash suffix), so the C# and Node runtimes share the same exchange. + var type = typeof(SampleMessage); + var expected = type.FullName!.Replace(".", string.Empty); + + Assert.Equal(expected, MessageTypeExchangeName.From(type)); + } + + [Fact] + public void From_SameType_ProducesStableResult() + { + // Producer and consumer both call From(type) to agree on the name — the + // mapping must be deterministic across calls. + var first = MessageTypeExchangeName.From(typeof(SampleMessage)); + var second = MessageTypeExchangeName.From(typeof(SampleMessage)); + + Assert.Equal(first, second); + } + + [Fact] + public void From_HasNoHashSuffix_MatchesMaster() + { + // Regression guard: the name must be exactly the flattened FullName with no + // underscore-hash suffix, so it stays byte-identical to master and Node on the wire. + var actual = MessageTypeExchangeName.From(typeof(SampleMessage)); + + Assert.DoesNotContain('_', actual); + Assert.Equal(typeof(SampleMessage).FullName!.Replace(".", string.Empty), actual); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/MessageTypeExchangeNameVersionStableTests.cs b/src/ServiceConnect.UnitTests/Services/MessageTypeExchangeNameVersionStableTests.cs new file mode 100644 index 000000000..339f84c91 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/MessageTypeExchangeNameVersionStableTests.cs @@ -0,0 +1,26 @@ +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +public class MessageTypeExchangeNameVersionStableTests +{ + public sealed class TypeInThisAssembly { } + + [Fact] + public void From_DependsOnlyOnFullName_NotAssemblyVersionOrQualifiedName() + { + // The exchange name is derived purely from Type.FullName (dots removed), so it is + // inherently stable across assembly-version bumps and carries no version/culture/PKT + // metadata. Producers and consumers built against different assembly versions of the + // same logical type therefore derive an identical name. + var type = typeof(TypeInThisAssembly); + var expected = type.FullName!.Replace(".", string.Empty); + + var actual = MessageTypeExchangeName.From(type); + + Assert.Equal(expected, actual); + Assert.DoesNotContain("Version=", actual); + Assert.DoesNotContain("Culture=", actual); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/MessageTypeRegistryTests.cs b/src/ServiceConnect.UnitTests/Services/MessageTypeRegistryTests.cs new file mode 100644 index 000000000..e84ff4b76 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/MessageTypeRegistryTests.cs @@ -0,0 +1,164 @@ +using ServiceConnect.Interfaces; +using ServiceConnect.Services; +using ServiceConnect.UnitTests.Fakes.Messages; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +public class MessageTypeRegistryTests +{ + private sealed class TypeA { } + private sealed class TypeB { } + + [Fact] + public async Task TryResolve_ConcurrentWithRegister_EventuallyResolvesNewlyRegisteredType() + { + // The TryResolve + Register race must not cache a stale frozen snapshot — doing so + // would permanently hide the newly-registered type until the next Register + // invalidated the cache again. Stress the race across many trials; if the + // version-aware invalidation regresses, at least one trial wedges and times out. + for (var trial = 0; trial < 50; trial++) + { + var registry = new MessageTypeRegistry(); + registry.Register(typeof(TypeA)); + // Warm the cache so _types is non-null going in. + registry.TryResolve(typeof(TypeA).FullName!, out _); + // Force the cache path to be re-built: read _types via a second warm call. + registry.TryResolve(typeof(TypeA).FullName!, out _); + + // Now invalidate concurrently: one thread constantly resolving, one registering. + using var gate = new ManualResetEventSlim(); + var bName = typeof(TypeB).FullName!; + var resolveTask = Task.Run(() => + { + gate.Set(); + var deadline = DateTime.UtcNow.AddSeconds(3); + while (DateTime.UtcNow < deadline) + { + if (registry.TryResolve(bName, out _)) + { + return; + } + + Thread.Yield(); + } + }); + + gate.Wait(); + registry.Register(typeof(TypeB)); + + var completed = await Task.WhenAny(resolveTask, Task.Delay(TimeSpan.FromSeconds(5))); + Assert.True(completed == resolveTask, + $"Trial {trial}: stale-snapshot race wedged TryResolve for TypeB."); + } + } + + [Fact] + public void TryResolve_RegisterDuringSnapshotCasWindow_DoesNotCacheStaleSnapshot() + { + var registry = new MessageTypeRegistry(); + registry.Register(typeof(TypeA)); + // Warm cache so _types != null. + registry.TryResolve(typeof(TypeA).FullName!, out _); + + // Invalidate cache so next TryResolve takes the snapshot-and-CAS path. + // Use reflection to null _types, simulating what a concurrent Register would do. + var typesField = typeof(MessageTypeRegistry).GetField( + "_types", + System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic)!; + typesField.SetValue(registry, null); + + // Simulate a concurrent Register in the race window by having the hook register TypeB. + var registered = false; + registry._testHookBeforeCas = () => + { + if (!registered) + { + registry.Register(typeof(TypeB)); + registered = true; + } + }; + // Trigger the snapshot-and-CAS path. _types is null so this will snapshot and CAS. + // The hook fires mid-CAS and registers TypeB, advancing _version. TryResolve must + // detect the version advance and invalidate the published snapshot. + registry.TryResolve("nonexistent", out _); + + // After the race, TypeB must be resolvable. If a stale snapshot were cached without + // TypeB the lookup would return false. + var found = registry.TryResolve(typeof(TypeB).FullName!, out var resolved); + Assert.True(found, "Stale snapshot was cached — race guard missing."); + Assert.Equal(typeof(TypeB), resolved); + } + + + [Fact] + public void TryResolve_RegisteredByAssemblyQualifiedName_ReturnsTrue() + { + var registry = new MessageTypeRegistry(); + registry.Register(typeof(FakeMessage1)); + var result = registry.TryResolve(typeof(FakeMessage1).AssemblyQualifiedName!, out var type); + Assert.True(result); + Assert.Equal(typeof(FakeMessage1), type); + } + + [Fact] + public void TryResolve_RegisteredByFullName_ReturnsTrue() + { + var registry = new MessageTypeRegistry(); + registry.Register(typeof(FakeMessage1)); + var result = registry.TryResolve(typeof(FakeMessage1).FullName!, out var type); + Assert.True(result); + Assert.Equal(typeof(FakeMessage1), type); + } + + [Fact] + public void TryResolve_UnregisteredType_ReturnsFalse() + { + var registry = new MessageTypeRegistry(); + var result = registry.TryResolve("Some.Unknown.Type, SomeAssembly", out _); + Assert.False(result); + } + + [Fact] + public void Register_DuplicateType_DoesNotThrow() + { + var registry = new MessageTypeRegistry(); + registry.Register(typeof(FakeMessage1)); + registry.Register(typeof(FakeMessage1)); + var result = registry.TryResolve(typeof(FakeMessage1).FullName!, out _); + Assert.True(result); + } + + [Fact] + public void TryResolve_Unknown_SetsOutParameterToNull() + { + // IMessageTypeRegistry.TryResolve carries [MaybeNullWhen(false)] so callers get + // correct nullable flow analysis when the type is not found. + var registry = new MessageTypeRegistry(); + + var success = registry.TryResolve("Unknown.TypeName", out Type? resolved); + + Assert.False(success); + Assert.Null(resolved); + } + + [Fact] + public void Register_CollidingType_Throws() + { + // Two message types sharing the same FullName (same namespace+name across + // different assemblies) would otherwise make dispatch non-deterministic. + // Register must throw on the second entry instead of silently overwriting. + // + // Simulate the collision by pre-seeding the internal dictionary under + // FakeMessage1's FullName with a different Type, then assert the subsequent + // Register(FakeMessage1) call is rejected. + var registry = new MessageTypeRegistry(); + var field = typeof(MessageTypeRegistry).GetField( + "_registeredTypes", + System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic)!; + var dict = (System.Collections.Concurrent.ConcurrentDictionary)field.GetValue(registry)!; + dict[typeof(FakeMessage1).FullName!] = typeof(object); + + Assert.Throws(() => registry.Register(typeof(FakeMessage1))); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/MiddlewarePipelineTests.cs b/src/ServiceConnect.UnitTests/Services/MiddlewarePipelineTests.cs new file mode 100644 index 000000000..886e5a2dc --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/MiddlewarePipelineTests.cs @@ -0,0 +1,269 @@ +using System; +using System.Collections.Generic; +using System.Text; +using System.Threading; +using System.Threading.Tasks; +using Microsoft.Extensions.DependencyInjection; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +file class TestMiddlewareMessage : Message +{ + public TestMiddlewareMessage() : base(Guid.NewGuid()) { } +} + +#region Send middleware test types + +file class RecordingSendMiddleware(List log) : ISendMessageMiddleware +{ + private readonly List _log = log; + + public async Task ProcessAsync(SendContext context, SendMessageDelegate next, CancellationToken cancellationToken) + { + _log.Add("before"); + await next(context, cancellationToken); + _log.Add("after"); + } +} + +file class ShortCircuitSendMiddleware : ISendMessageMiddleware +{ + public Task ProcessAsync(SendContext context, SendMessageDelegate next, CancellationToken cancellationToken) + { + // Intentionally does NOT call next + return Task.CompletedTask; + } +} + +#endregion + +#region Processing middleware test types + +file class RecordingProcessingMiddleware(List log) : IMessageProcessingMiddleware +{ + private readonly List _log = log; + + public async Task ProcessAsync(ReadOnlyMemory messageBytes, Type messageType, object message, + IDictionary headers, Envelope envelope, MessageProcessingDelegate next, CancellationToken cancellationToken) + { + _log.Add("before"); + var result = await next(messageBytes, messageType, message, headers, envelope, cancellationToken); + _log.Add("after"); + return result; + } +} + +file class ShortCircuitProcessingMiddleware : IMessageProcessingMiddleware +{ + public Task ProcessAsync(ReadOnlyMemory messageBytes, Type messageType, object message, + IDictionary headers, Envelope envelope, MessageProcessingDelegate next, CancellationToken cancellationToken) + { + return Task.FromResult(new ConsumeEventResult { Success = true }); + } +} + +#endregion + +public class SendMiddlewarePipelineTests +{ + private readonly Mock _mockProducer; + + public SendMiddlewarePipelineTests() + { + _mockProducer = new Mock(); + _mockProducer.Setup(p => p.PublishAsync(It.IsAny(), It.IsAny>(), It.IsAny>(), It.IsAny())) + .Returns(Task.CompletedTask); + _mockProducer.Setup(p => p.SendAsync(It.IsAny(), It.IsAny>(), It.IsAny>(), It.IsAny())) + .Returns(Task.CompletedTask); + _mockProducer.Setup(p => p.SendAsync(It.IsAny(), It.IsAny(), It.IsAny>(), It.IsAny>(), It.IsAny())) + .Returns(Task.CompletedTask); + } + + [Fact] + public async Task SendMiddleware_SingleMiddleware_WrapsProducerCall() + { + // Arrange + var log = new List(); + var services = new ServiceCollection(); + services.AddSingleton(log); + services.AddTransient(); + var sp = services.BuildServiceProvider(); + + var mockPipelineConfig = new Mock(); + mockPipelineConfig.Setup(p => p.SendMessageMiddleware) + .Returns([typeof(RecordingSendMiddleware)]); + + _mockProducer.Setup(p => p.PublishAsync(It.IsAny(), It.IsAny>(), It.IsAny>(), It.IsAny())) + .Returns(() => { log.Add("producer"); return Task.CompletedTask; }); + + var pipeline = new SendMessagePipeline(_mockProducer.Object, mockPipelineConfig.Object, sp); + + // Act + await pipeline.ExecutePublishMessagePipelineAsync(MakePublishContext()); + + // Assert + Assert.Equal(new[] { "before", "producer", "after" }, log); + } + + [Fact] + public async Task SendMiddleware_NoMiddleware_DirectProducerCall() + { + // Arrange + var mockPipelineConfig = new Mock(); + mockPipelineConfig.Setup(p => p.SendMessageMiddleware).Returns([]); + var sp = new ServiceCollection().BuildServiceProvider(); + + var pipeline = new SendMessagePipeline(_mockProducer.Object, mockPipelineConfig.Object, sp); + + // Act + await pipeline.ExecutePublishMessagePipelineAsync(MakePublishContext()); + + // Assert + _mockProducer.Verify(p => p.PublishAsync(typeof(string), It.IsAny>(), It.IsAny>(), It.IsAny()), Times.Once); + } + + [Fact] + public async Task SendMiddleware_ShortCircuit_ProducerNotCalled() + { + // Arrange + var services = new ServiceCollection(); + services.AddTransient(); + var sp = services.BuildServiceProvider(); + + var mockPipelineConfig = new Mock(); + mockPipelineConfig.Setup(p => p.SendMessageMiddleware) + .Returns([typeof(ShortCircuitSendMiddleware)]); + + var pipeline = new SendMessagePipeline(_mockProducer.Object, mockPipelineConfig.Object, sp); + + // Act + await pipeline.ExecutePublishMessagePipelineAsync(MakePublishContext()); + + // Assert + _mockProducer.Verify(p => p.PublishAsync(It.IsAny(), It.IsAny>(), It.IsAny>(), It.IsAny()), Times.Never); + } + + private static SendContext MakePublishContext() => new() + { + Message = new TestMiddlewareMessage(), + MessageType = typeof(string), + MessageBytes = new byte[] { 1 }, + Headers = new Dictionary(StringComparer.Ordinal), + Operation = SendOperation.Publish, + }; +} + +public class ProcessingMiddlewarePipelineTests +{ + private readonly Mock _mockSerializer; + private readonly Mock _mockFilterPipeline; + + public ProcessingMiddlewarePipelineTests() + { + _mockSerializer = new Mock(); + _mockFilterPipeline = new Mock(); + _mockFilterPipeline.Setup(f => f.ExecuteBeforeConsumingFiltersAsync(It.IsAny(), It.IsAny())).ReturnsAsync(FilterAction.Continue); + _mockFilterPipeline.Setup(f => f.ExecuteAfterConsumingFiltersAsync(It.IsAny(), It.IsAny())).ReturnsAsync(FilterAction.Continue); + } + + private static Dictionary MakeHeaders(Type messageType) + { + return new Dictionary + { + [HeaderKeys.FullTypeName] = System.Text.Encoding.UTF8.GetBytes(messageType.AssemblyQualifiedName!) + }; + } + + [Fact] + public async Task ProcessingMiddleware_SingleMiddleware_WrapsProcessorCall() + { + // Arrange + var log = new List(); + var services = new ServiceCollection(); + services.AddSingleton(log); + services.AddTransient(); + var sp = services.BuildServiceProvider(); + + var mockPipelineConfig = new Mock(); + mockPipelineConfig.Setup(p => p.MessageProcessingMiddleware) + .Returns([typeof(RecordingProcessingMiddleware)]); + + var mockProcessor = new Mock(); + mockProcessor.Setup(p => p.RunBeforeDeserialization).Returns(false); + mockProcessor.Setup(p => p.ProcessAsync(It.IsAny>(), It.IsAny(), It.IsAny(), + It.IsAny>(), It.IsAny(), It.IsAny())) + .Returns(() => { log.Add("processor"); return Task.FromResult(ProcessResult.Handled); }); + + var testMsg = new TestMiddlewareMessage(); + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(TestMiddlewareMessage))).Returns(testMsg); + + var registry = new MessageTypeRegistry(); + registry.Register(typeof(TestMiddlewareMessage)); + var dispatcher = new MessageDispatcher( + _mockSerializer.Object, + _mockFilterPipeline.Object, + [mockProcessor.Object], + Microsoft.Extensions.Logging.Abstractions.NullLogger.Instance, + new Mock().Object, + mockPipelineConfig.Object, + sp.GetRequiredService(), + new ConsumeScopeAccessor(), + registry); + + var headers = MakeHeaders(typeof(TestMiddlewareMessage)); + + // Act + var result = await dispatcher.DispatchAsync(new byte[] { 1 }, nameof(TestMiddlewareMessage), headers); + + // Assert + Assert.True(result.Success); + Assert.Equal(new[] { "before", "processor", "after" }, log); + } + + [Fact] + public async Task ProcessingMiddleware_ShortCircuit_ProcessorNotCalled() + { + // Arrange + var services = new ServiceCollection(); + services.AddTransient(); + var sp = services.BuildServiceProvider(); + + var mockPipelineConfig = new Mock(); + mockPipelineConfig.Setup(p => p.MessageProcessingMiddleware) + .Returns([typeof(ShortCircuitProcessingMiddleware)]); + + var mockProcessor = new Mock(); + mockProcessor.Setup(p => p.RunBeforeDeserialization).Returns(false); + + var testMsg = new TestMiddlewareMessage(); + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(TestMiddlewareMessage))).Returns(testMsg); + + var registry2 = new MessageTypeRegistry(); + registry2.Register(typeof(TestMiddlewareMessage)); + var dispatcher = new MessageDispatcher( + _mockSerializer.Object, + _mockFilterPipeline.Object, + [mockProcessor.Object], + Microsoft.Extensions.Logging.Abstractions.NullLogger.Instance, + new Mock().Object, + mockPipelineConfig.Object, + sp.GetRequiredService(), + new ConsumeScopeAccessor(), + registry2); + + var headers = MakeHeaders(typeof(TestMiddlewareMessage)); + + // Act + var result = await dispatcher.DispatchAsync(new byte[] { 1 }, nameof(TestMiddlewareMessage), headers); + + // Assert + Assert.True(result.Success); + mockProcessor.Verify(p => p.ProcessAsync(It.IsAny>(), It.IsAny(), It.IsAny(), + It.IsAny>(), It.IsAny(), It.IsAny()), Times.Never); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/ProcessManagerTimeoutServiceDisposeTimeoutTests.cs b/src/ServiceConnect.UnitTests/Services/ProcessManagerTimeoutServiceDisposeTimeoutTests.cs new file mode 100644 index 000000000..629ba81e5 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/ProcessManagerTimeoutServiceDisposeTimeoutTests.cs @@ -0,0 +1,71 @@ +using Microsoft.Extensions.Logging; +using Microsoft.Extensions.Time.Testing; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +/// +/// Verifies that DisposeAsync is bounded by IBusConfiguration.DisposeTimeout +/// even when the polling task is blocked in a non-cooperative ITimeoutStore call. +/// +public class ProcessManagerTimeoutServiceDisposeTimeoutTests +{ + [Fact] + public async Task DisposeAsync_PollingTaskWedgedInTimeoutStore_CompletesWithinDisposeTimeout() + { + // Arrange: ITimeoutStore whose GetTimeoutsBatchAsync never yields — it calls + // Task.Delay(Infinite, CancellationToken.None) so the polling loop's own + // cancellation token cannot interrupt it. This simulates a non-cooperative + // store (sync-over-async wedge, network hang, etc.). + var loggerMock = new Mock>(); + var fakeTime = new FakeTimeProvider(); + + var store = new Mock(); + store.Setup(s => s.GetTimeoutsBatchAsync(It.IsAny(), It.IsAny())) + .Returns(() => Task.Delay(Timeout.InfiniteTimeSpan, CancellationToken.None) + .ContinueWith(_ => new TimeoutsBatch { DueTimeouts = [] }, + TaskContinuationOptions.None)); + + var config = new Mock(); + config.SetupGet(c => c.EnableProcessManagerTimeouts).Returns(true); + config.SetupGet(c => c.ProcessManagerTimeoutPollInterval).Returns(TimeSpan.FromMilliseconds(10)); + // Short DisposeTimeout so the test completes quickly. + config.SetupGet(c => c.DisposeTimeout).Returns(TimeSpan.FromMilliseconds(50)); + + var bus = new Lazy(() => new Mock().Object); + var svc = new ProcessManagerTimeoutService(config.Object, bus, store.Object, loggerMock.Object, fakeTime); + + // Start the service so the polling task is running. + await svc.StartAsync(CancellationToken.None); + + // Drive a FakeTimeProvider tick so the poll loop enters GetTimeoutsBatchAsync + // and gets stuck before we call DisposeAsync. + fakeTime.Advance(TimeSpan.FromMilliseconds(20)); + await Task.Delay(50); // allow the async poll to enter GetTimeoutsBatchAsync + + // Act: DisposeAsync must return within a reasonable window even though the + // polling task is wedged. Allow 10× the DisposeTimeout as a safety margin. + using var testTimeoutCts = new CancellationTokenSource(TimeSpan.FromMilliseconds(500)); + var disposeTask = svc.DisposeAsync().AsTask(); + var completed = await Task.WhenAny(disposeTask, Task.Delay(Timeout.InfiniteTimeSpan, testTimeoutCts.Token)); + + Assert.True(completed == disposeTask, + "DisposeAsync did not complete within 500 ms; it is likely wedged waiting for the polling task."); + + // Re-await to propagate any unexpected exceptions. + await disposeTask; + + // Assert: the warning about the polling task not completing within the timeout was logged. + loggerMock.Verify(l => l.Log( + LogLevel.Warning, + It.IsAny(), + It.Is((v, _) => v.ToString()!.Contains("did not complete within")), + It.IsAny(), + It.IsAny>()), + Times.AtLeastOnce); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/ProcessManagerTimeoutServiceLeaseGuardTests.cs b/src/ServiceConnect.UnitTests/Services/ProcessManagerTimeoutServiceLeaseGuardTests.cs new file mode 100644 index 000000000..6bed88629 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/ProcessManagerTimeoutServiceLeaseGuardTests.cs @@ -0,0 +1,120 @@ +using Microsoft.Extensions.Logging.Abstractions; +using Microsoft.Extensions.Time.Testing; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Interfaces.Options; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +public class ProcessManagerTimeoutServiceLeaseGuardTests +{ + [Fact] + public async Task PollOnceAsync_LeaseExpiredDuringSend_DoesNotCallRemove() + { + // Arrange a timeout whose lease expires DURING SendAsync — the SendAsync + // mock callback advances FakeTimeProvider so the post-send lease check + // sees expiration. Remove must skip when the lease has expired, leaving + // reclaim to the lease-expiry sweep on the next poll. + var clock = new FakeTimeProvider(new DateTimeOffset(2026, 5, 3, 12, 0, 0, TimeSpan.Zero)); + var bus = new Mock(); + var store = new Mock(); + var config = new Mock(); + config.Setup(c => c.EnableProcessManagerTimeouts).Returns(true); + + var lockOwner = Guid.NewGuid(); + var timeoutId = Guid.NewGuid(); + + var dueTimeout = new TimeoutData + { + Id = timeoutId, + ProcessManagerId = Guid.NewGuid(), + Destination = "test-queue", + Time = clock.GetUtcNow().AddMinutes(-1), + Headers = new Dictionary(), + Locked = true, + LockedBy = lockOwner, + // Lease expires 10 s from now — safe before SendAsync, expired after. + LockExpiresAt = clock.GetUtcNow().Add(TimeSpan.FromSeconds(10)) + }; + + store.Setup(s => s.GetTimeoutsBatchAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(new TimeoutsBatch { DueTimeouts = [dueTimeout] }); + + // SendAsync advances the clock by 30 s — well past the 10 s LockExpiresAt window. + bus.Setup(b => b.SendAsync(It.IsAny(), It.IsAny(), It.IsAny())) + .Callback(() => clock.Advance(TimeSpan.FromSeconds(30))) + .Returns(Task.CompletedTask); + + var svc = new ProcessManagerTimeoutService( + config.Object, + new Lazy(() => bus.Object), + store.Object, + NullLogger.Instance, + clock); + + await svc.PollOnceAsync(); + + bus.Verify( + b => b.SendAsync(It.IsAny(), It.IsAny(), It.IsAny()), + Times.Once); + store.Verify( + s => s.RemoveDispatchedTimeoutAsync(timeoutId, It.IsAny(), It.IsAny()), + Times.Never, + "Lease expired during SendAsync; Remove must NOT be called — let the lease-expiry sweep reclaim the row."); + } + + [Fact] + public async Task PollOnceAsync_LeaseValidAfterSend_CallsRemove() + { + // Regression guard: when the lease is still valid after SendAsync returns the + // happy-path Remove must still fire exactly once. + var clock = new FakeTimeProvider(new DateTimeOffset(2026, 5, 3, 12, 0, 0, TimeSpan.Zero)); + var bus = new Mock(); + var store = new Mock(); + var config = new Mock(); + config.Setup(c => c.EnableProcessManagerTimeouts).Returns(true); + + var lockOwner = Guid.NewGuid(); + var timeoutId = Guid.NewGuid(); + + var dueTimeout = new TimeoutData + { + Id = timeoutId, + ProcessManagerId = Guid.NewGuid(), + Destination = "test-queue", + Time = clock.GetUtcNow().AddMinutes(-1), + Headers = new Dictionary(), + Locked = true, + LockedBy = lockOwner, + // Lease expires 5 minutes from now — easily survives a realistic SendAsync. + LockExpiresAt = clock.GetUtcNow().Add(TimeSpan.FromMinutes(5)) + }; + + store.Setup(s => s.GetTimeoutsBatchAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(new TimeoutsBatch { DueTimeouts = [dueTimeout] }); + + // SendAsync does not advance the clock — lease remains valid. + bus.Setup(b => b.SendAsync(It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var svc = new ProcessManagerTimeoutService( + config.Object, + new Lazy(() => bus.Object), + store.Object, + NullLogger.Instance, + clock); + + await svc.PollOnceAsync(); + + bus.Verify( + b => b.SendAsync(It.IsAny(), It.IsAny(), It.IsAny()), + Times.Once); + store.Verify( + s => s.RemoveDispatchedTimeoutAsync(timeoutId, (Guid?)lockOwner, It.IsAny()), + Times.Once, + "Lease still valid post-send; Remove is the expected at-least-once dispatch ack."); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/ProcessManagerTimeoutServiceLifecycleTests.cs b/src/ServiceConnect.UnitTests/Services/ProcessManagerTimeoutServiceLifecycleTests.cs new file mode 100644 index 000000000..39e573c9d --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/ProcessManagerTimeoutServiceLifecycleTests.cs @@ -0,0 +1,201 @@ +using Microsoft.Extensions.Logging; +using Microsoft.Extensions.Logging.Abstractions; +using Microsoft.Extensions.Time.Testing; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Interfaces.Options; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +public class ProcessManagerTimeoutServiceLifecycleTests +{ + [Fact] + public async Task StartAsync_StartupTokenCancelledAfterReturn_DoesNotKillPollLoop() + { + // The loop's _stoppingCts must be independent of the startup token: cancelling + // the startup token after StartAsync returns must not stop polling. Linking the + // two would silently kill the loop once the host startup window closed. + using var startupCts = new CancellationTokenSource(); + var fakeTime = new FakeTimeProvider(); + var (svc, finder) = BuildService(fakeTime); + + await svc.StartAsync(startupCts.Token); + await startupCts.CancelAsync(); // simulate host startup token being cancelled + + // Drive at least one poll tick. FakeTimeProvider.Advance synchronously fires + // PeriodicTimer ticks; a small delay lets the awaited async path observe the + // resulting GetTimeoutsBatchAsync call. + fakeTime.Advance(TimeSpan.FromSeconds(31)); + await Task.Delay(100); + + finder.Verify(f => f.GetTimeoutsBatchAsync( + It.IsAny(), It.IsAny()), + Times.AtLeastOnce); + + await svc.StopAsync(CancellationToken.None); + } + + [Fact] + public async Task PollOnceAsync_NonShutdownOceFromTimeoutStore_LogsWarning() + { + // An OCE thrown by a non-loop CT (e.g., timeout-store internal cancellation) + // must surface as a Warning log, not silently terminate the loop. + var loggerMock = new Mock>(); + var fakeTime = new FakeTimeProvider(); + var foreignCt = new CancellationToken(canceled: true); + + var finder = new Mock(); + finder.Setup(f => f.GetTimeoutsBatchAsync(It.IsAny(), It.IsAny())) + .ThrowsAsync(new OperationCanceledException("foreign", foreignCt)); + + var svc = BuildServiceWithOverrides(fakeTime, finder.Object, loggerMock.Object); + await svc.StartAsync(CancellationToken.None); + + fakeTime.Advance(TimeSpan.FromSeconds(31)); + await Task.Delay(150); + + loggerMock.Verify(l => l.Log( + LogLevel.Warning, + It.IsAny(), + It.IsAny(), + It.IsAny(), + It.IsAny>()), + Times.AtLeastOnce); + + await svc.StopAsync(CancellationToken.None); + } + + [Fact] + public async Task PollLoop_RemoveFailsTransiently_CatchUpLoopContinuesDrainingBacklog() + { + // When the store's Remove consistently fails, the catch-up loop must keep re-polling + // because sentCount (not a remove-derived count) drives the loop signal. If the loop + // signal were derived from successful removes, a degraded store would stall the loop + // after a single batch, reducing drain rate from full-batch-per-inner-iteration to + // one-batch-per-tick. + // + // Scenario: first 3 calls return a non-empty batch; 4th call returns empty. + // The catch-up loop should call GetTimeoutsBatchAsync 4 times across 3 inner + // iterations (3 × 1 sent, loop stops on the empty batch). + var fakeTime = new FakeTimeProvider(); + var bus = new Mock(); + bus.Setup(b => b.SendAsync(It.IsAny(), It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var callCount = 0; + var finder = new Mock(); + finder.Setup(f => f.GetTimeoutsBatchAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(() => + { + callCount++; + // First 3 calls return one due timeout; 4th returns empty, ending the loop. + if (callCount <= 3) + { + return new TimeoutsBatch + { + DueTimeouts = + [ + new TimeoutData + { + Id = Guid.NewGuid(), + ProcessManagerId = Guid.NewGuid(), + Destination = "q", + Time = DateTimeOffset.UtcNow.AddMinutes(-1), + Headers = new Dictionary() + } + ] + }; + } + + return new TimeoutsBatch { DueTimeouts = [] }; + }); + + // Every remove throws — simulates a degraded store while sends are healthy. + finder.Setup(f => f.RemoveDispatchedTimeoutAsync(It.IsAny(), It.IsAny(), It.IsAny())) + .ThrowsAsync(new InvalidOperationException("store unavailable")); + + var config = new Mock(); + config.SetupGet(c => c.EnableProcessManagerTimeouts).Returns(true); + config.SetupGet(c => c.ProcessManagerTimeoutPollInterval).Returns(TimeSpan.FromSeconds(30)); + + var svc = new ProcessManagerTimeoutService( + config.Object, + new Lazy(() => bus.Object), + finder.Object, + NullLogger.Instance, + fakeTime); + + await svc.StartAsync(CancellationToken.None); + + // Advance the fake clock to fire one timer tick; the catch-up loop runs within it. + fakeTime.Advance(TimeSpan.FromSeconds(31)); + // Allow async continuations to settle after the tick. + await Task.Delay(200); + + await svc.StopAsync(CancellationToken.None); + + // The catch-up loop must have polled 4 times in one tick (3 non-empty + 1 empty stop). + finder.Verify(f => f.GetTimeoutsBatchAsync(It.IsAny(), It.IsAny()), + Times.AtLeast(4)); + + // SendAsync must have been called once for each of the 3 non-empty batches. + bus.Verify(b => b.SendAsync(It.IsAny(), It.IsAny(), It.IsAny()), + Times.AtLeast(3)); + + // Release must NOT be called — remove failures after a successful send are not + // send failures and must not trigger release (which would re-queue the message). + finder.Verify(f => f.ReleaseDispatchedTimeoutAsync(It.IsAny(), It.IsAny(), It.IsAny()), + Times.Never); + } + + [Fact] + public async Task PollLoop_FakeTimeProviderDrivesPolls() + { + // PeriodicTimer must use the injected TimeProvider so FakeTimeProvider can drive ticks. + var fakeTime = new FakeTimeProvider(); + var (svc, finder) = BuildService(fakeTime); + + await svc.StartAsync(CancellationToken.None); + // No real time passes; only FakeTimeProvider advances drive ticks. + fakeTime.Advance(TimeSpan.FromSeconds(31)); + await Task.Delay(100); + + finder.Verify(f => f.GetTimeoutsBatchAsync( + It.IsAny(), It.IsAny()), + Times.AtLeastOnce); + + await svc.StopAsync(CancellationToken.None); + } + + private static (ProcessManagerTimeoutService svc, Mock finder) BuildService( + FakeTimeProvider time) + { + var finder = new Mock(); + finder.Setup(f => f.GetTimeoutsBatchAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(new TimeoutsBatch { DueTimeouts = [] }); + + var svc = BuildServiceWithOverrides(time, finder.Object, NullLogger.Instance); + return (svc, finder); + } + + private static ProcessManagerTimeoutService BuildServiceWithOverrides( + FakeTimeProvider time, + ITimeoutStore finder, + ILogger logger) + { + var config = new Mock(); + config.SetupGet(c => c.EnableProcessManagerTimeouts).Returns(true); + config.SetupGet(c => c.ProcessManagerTimeoutPollInterval).Returns(TimeSpan.FromSeconds(30)); + + var bus = new Lazy(() => new Mock().Object); + return new ProcessManagerTimeoutService( + config.Object, + bus, + finder, + logger, + time); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/ProcessManagerTimeoutServiceTests.cs b/src/ServiceConnect.UnitTests/Services/ProcessManagerTimeoutServiceTests.cs new file mode 100644 index 000000000..5a6db779c --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/ProcessManagerTimeoutServiceTests.cs @@ -0,0 +1,820 @@ +using System.Reflection; +using Microsoft.Extensions.Logging; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Interfaces.Options; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +public class ProcessManagerTimeoutServiceTests +{ + private readonly Mock _mockConfig = new(); + private readonly Mock _mockFinder = new(); + private readonly Mock _mockBus = new(); + private readonly ILogger _logger = + new Mock>().Object; + + private ProcessManagerTimeoutService CreateSut(ITimeoutStore? finder = null) => + new(_mockConfig.Object, new Lazy(() => _mockBus.Object), finder, _logger); + + [Fact] + public async Task StartAsync_TimeoutsDisabled_DoesNotPoll() + { + _mockConfig.Setup(c => c.EnableProcessManagerTimeouts).Returns(false); + var sut = CreateSut(_mockFinder.Object); + + await sut.StartAsync(CancellationToken.None); + await sut.StopAsync(CancellationToken.None); + + _mockFinder.Verify(f => f.GetTimeoutsBatchAsync(It.IsAny(), It.IsAny()), Times.Never); + } + + [Fact] + public async Task StartAsync_NoFinderRegistered_DoesNotThrow() + { + _mockConfig.Setup(c => c.EnableProcessManagerTimeouts).Returns(true); + var sut = CreateSut(); + + var exception = await Record.ExceptionAsync(async () => + { + await sut.StartAsync(CancellationToken.None); + await Task.Delay(50); + await sut.StopAsync(CancellationToken.None); + }); + + Assert.Null(exception); + } + + [Fact] + public async Task PollOnce_DueTimeouts_RemovesDispatched() + { + _mockConfig.Setup(c => c.EnableProcessManagerTimeouts).Returns(true); + + var timeoutId = Guid.NewGuid(); + var batch = new TimeoutsBatch + { + DueTimeouts = + [ + new TimeoutData + { + Id = timeoutId, + ProcessManagerId = Guid.NewGuid(), + Destination = "test-queue", + Time = DateTimeOffset.UtcNow.AddMinutes(-1), + Headers = new Dictionary(), + Locked = false + } + ], + }; + + _mockFinder.Setup(f => f.GetTimeoutsBatchAsync(It.IsAny(), It.IsAny())).ReturnsAsync(batch); + _mockBus.Setup(bus => bus.SendAsync( + It.IsAny(), + It.Is(options => options.EndPoint == "test-queue"), + It.IsAny())) + .Returns(Task.CompletedTask); + + var sut = CreateSut(_mockFinder.Object); + + await sut.PollOnceAsync(); + + _mockBus.Verify(bus => bus.SendAsync( + It.IsAny(), + It.Is(options => options.EndPoint == "test-queue"), + It.IsAny()), + Times.Once); + _mockFinder.Verify(f => f.RemoveDispatchedTimeoutAsync(timeoutId, (Guid?)null, It.IsAny()), Times.Once); + } + + [Fact] + public async Task PollOnce_IncludesStoredHeaders_WhenDispatchingTimeout() + { + _mockConfig.Setup(c => c.EnableProcessManagerTimeouts).Returns(true); + + var timeoutId = Guid.NewGuid(); + var batch = new TimeoutsBatch + { + DueTimeouts = + [ + new TimeoutData + { + Id = timeoutId, + ProcessManagerId = Guid.NewGuid(), + Destination = "test-queue", + Time = DateTimeOffset.UtcNow.AddMinutes(-1), + Headers = new Dictionary { ["X-Custom-Header"] = "value" } + } + ], + }; + + _mockFinder.Setup(f => f.GetTimeoutsBatchAsync(It.IsAny(), It.IsAny())).ReturnsAsync(batch); + _mockBus.Setup(bus => bus.SendAsync( + It.IsAny(), + It.IsAny(), + It.IsAny())) + .Returns(Task.CompletedTask); + + var sut = CreateSut(_mockFinder.Object); + + await sut.PollOnceAsync(); + + _mockBus.Verify(bus => bus.SendAsync( + It.IsAny(), + It.Is(options => + options.Headers != null && + options.Headers["X-Custom-Header"] == "value"), + It.IsAny()), + Times.Once); + } + + [Fact] + public async Task PollOnce_DoesNotForwardReservedTransportHeaders_WhenDispatchingTimeout() + { + _mockConfig.Setup(c => c.EnableProcessManagerTimeouts).Returns(true); + + var reservedHeaders = new Dictionary + { + [HeaderKeys.MessageType] = "spoofed-message-type", + [HeaderKeys.TypeName] = "spoofed-type-name", + [HeaderKeys.FullTypeName] = "spoofed-full-type-name", + [HeaderKeys.MessageId] = "spoofed-message-id", + [HeaderKeys.DestinationAddress] = "spoofed-destination", + [HeaderKeys.SourceAddress] = "spoofed-source", + [HeaderKeys.RequestMessageId] = "spoofed-request-message-id", + [HeaderKeys.ResponseMessageId] = "spoofed-response-message-id", + [HeaderKeys.RoutingKey] = "spoofed-routing-key", + [HeaderKeys.RoutingSlip] = "spoofed-routing-slip", + [HeaderKeys.Publish] = "spoofed-publish", + [HeaderKeys.SequenceId] = "spoofed-sequence-id", + [HeaderKeys.PacketNumber] = "spoofed-packet-number", + [HeaderKeys.LastPacketNumber] = "spoofed-last-packet-number", + [HeaderKeys.ByteStream] = "spoofed-byte-stream", + [HeaderKeys.TimeSent] = "spoofed-time-sent", + [HeaderKeys.TimeReceived] = "spoofed-time-received", + [HeaderKeys.TimeProcessed] = "spoofed-time-processed", + [HeaderKeys.SourceMachine] = "spoofed-source-machine", + [HeaderKeys.DestinationMachine] = "spoofed-destination-machine", + [HeaderKeys.Redelivered] = "spoofed-redelivered", + [HeaderKeys.ConsumerType] = "spoofed-consumer-type", + [HeaderKeys.Language] = "spoofed-language", + [HeaderKeys.Exception] = "spoofed-exception", + [HeaderKeys.RetryCount] = "spoofed-retry-count", + [HeaderKeys.CorrelationId] = "spoofed-correlation-id", + [HeaderKeys.Priority] = "spoofed-priority" + }; + + var timeoutId = Guid.NewGuid(); + var batch = new TimeoutsBatch + { + DueTimeouts = + [ + new TimeoutData + { + Id = timeoutId, + ProcessManagerId = Guid.NewGuid(), + Destination = "test-queue", + Time = DateTimeOffset.UtcNow.AddMinutes(-1), + Headers = new Dictionary(reservedHeaders) + { + ["X-Custom-Header"] = "value" + } + } + ], + }; + + _mockFinder.Setup(f => f.GetTimeoutsBatchAsync(It.IsAny(), It.IsAny())).ReturnsAsync(batch); + SendOptions? dispatchedOptions = null; + _mockBus.Setup(bus => bus.SendAsync( + It.IsAny(), + It.IsAny(), + It.IsAny())) + .Callback((_, options, _) => dispatchedOptions = options) + .Returns(Task.CompletedTask); + + var sut = CreateSut(_mockFinder.Object); + + await sut.PollOnceAsync(); + + _mockBus.Verify(bus => bus.SendAsync( + It.IsAny(), + It.IsAny(), + It.IsAny()), + Times.Once); + + var sendOptions = Assert.IsType(dispatchedOptions); + var outgoingHeaders = Assert.IsAssignableFrom>(sendOptions.Headers); + Assert.Equal("value", outgoingHeaders["X-Custom-Header"]); + + foreach (var reservedHeader in reservedHeaders.Keys) + { + Assert.DoesNotContain(reservedHeader, outgoingHeaders.Keys); + } + } + + [Fact] + public async Task PollOnce_IgnoresUnsupportedStoredHeaderValues_WhenDispatchingTimeout() + { + _mockConfig.Setup(c => c.EnableProcessManagerTimeouts).Returns(true); + + var timeoutId = Guid.NewGuid(); + var batch = new TimeoutsBatch + { + DueTimeouts = + [ + new TimeoutData + { + Id = timeoutId, + ProcessManagerId = Guid.NewGuid(), + Destination = "test-queue", + Time = DateTimeOffset.UtcNow.AddMinutes(-1), + Headers = new Dictionary + { + ["X-Custom-Header"] = "value", + ["Unsupported"] = new object() + } + } + ], + }; + + _mockFinder.Setup(f => f.GetTimeoutsBatchAsync(It.IsAny(), It.IsAny())).ReturnsAsync(batch); + _mockBus.Setup(bus => bus.SendAsync( + It.IsAny(), + It.IsAny(), + It.IsAny())) + .Returns(Task.CompletedTask); + + var sut = CreateSut(_mockFinder.Object); + + await sut.PollOnceAsync(); + + _mockBus.Verify(bus => bus.SendAsync( + It.IsAny(), + It.Is(options => + options.Headers != null && + options.Headers["X-Custom-Header"] == "value" && + !options.Headers.ContainsKey("Unsupported")), + It.IsAny()), + Times.Once); + } + + [Fact] + public async Task PollOnce_SendFails_ReleasesTimeoutForRetry() + { + _mockConfig.Setup(c => c.EnableProcessManagerTimeouts).Returns(true); + + var timeoutId = Guid.NewGuid(); + var batch = new TimeoutsBatch + { + DueTimeouts = + [ + new TimeoutData + { + Id = timeoutId, + ProcessManagerId = Guid.NewGuid(), + Destination = "test-queue", + Time = DateTimeOffset.UtcNow.AddMinutes(-1), + Headers = new Dictionary(), + Locked = true, + LockedBy = Guid.NewGuid(), + LockExpiresAt = DateTimeOffset.UtcNow.AddMinutes(1) + } + ], + }; + + _mockFinder.Setup(f => f.GetTimeoutsBatchAsync(It.IsAny(), It.IsAny())).ReturnsAsync(batch); + _mockBus.Setup(bus => bus.SendAsync( + It.IsAny(), + It.Is(options => options.EndPoint == "test-queue"), + It.IsAny())) + .ThrowsAsync(new InvalidOperationException("boom")); + + var sut = CreateSut(_mockFinder.Object); + + await sut.PollOnceAsync(); + + _mockFinder.Verify(f => f.ReleaseDispatchedTimeoutAsync(timeoutId, It.IsAny(), It.IsAny()), Times.Once); + _mockFinder.Verify(f => f.RemoveDispatchedTimeoutAsync(timeoutId, It.IsAny(), It.IsAny()), Times.Never); + } + + [Fact] + public async Task PollOnce_WithLockOwner_PassesOwnerToRemove() + { + _mockConfig.Setup(c => c.EnableProcessManagerTimeouts).Returns(true); + + var timeoutId = Guid.NewGuid(); + var lockOwner = Guid.NewGuid(); + var store = new Mock(); + var batch = new TimeoutsBatch + { + DueTimeouts = + [ + new TimeoutData + { + Id = timeoutId, + ProcessManagerId = Guid.NewGuid(), + Destination = "test-queue", + Time = DateTimeOffset.UtcNow.AddMinutes(-1), + Headers = new Dictionary(), + Locked = true, + LockedBy = lockOwner, + LockExpiresAt = DateTimeOffset.UtcNow.AddMinutes(1) + } + ], + }; + + store.Setup(f => f.GetTimeoutsBatchAsync(It.IsAny(), It.IsAny())).ReturnsAsync(batch); + store.Setup(f => f.RemoveDispatchedTimeoutAsync(timeoutId, (Guid?)lockOwner, It.IsAny())) + .Returns(Task.CompletedTask); + _mockBus.Setup(bus => bus.SendAsync( + It.IsAny(), + It.Is(options => options.EndPoint == "test-queue"), + It.IsAny())) + .Returns(Task.CompletedTask); + + var sut = CreateSut(store.Object); + + await sut.PollOnceAsync(); + + store.Verify(f => f.RemoveDispatchedTimeoutAsync(timeoutId, (Guid?)lockOwner, It.IsAny()), Times.Once); + store.Verify(f => f.RemoveDispatchedTimeoutAsync(timeoutId, (Guid?)null, It.IsAny()), Times.Never); + } + + [Fact] + public async Task PollOnce_WithoutLockOwner_PassesNullToRemove() + { + _mockConfig.Setup(c => c.EnableProcessManagerTimeouts).Returns(true); + + var timeoutId = Guid.NewGuid(); + var store = new Mock(); + var batch = new TimeoutsBatch + { + DueTimeouts = + [ + new TimeoutData + { + Id = timeoutId, + ProcessManagerId = Guid.NewGuid(), + Destination = "test-queue", + Time = DateTimeOffset.UtcNow.AddMinutes(-1), + Headers = new Dictionary(), + Locked = true, + LockedBy = Guid.Empty, + LockExpiresAt = DateTimeOffset.UtcNow.AddMinutes(1) + } + ], + }; + + store.Setup(f => f.GetTimeoutsBatchAsync(It.IsAny(), It.IsAny())).ReturnsAsync(batch); + store.Setup(f => f.RemoveDispatchedTimeoutAsync(timeoutId, (Guid?)null, It.IsAny())) + .Returns(Task.CompletedTask); + _mockBus.Setup(bus => bus.SendAsync( + It.IsAny(), + It.Is(options => options.EndPoint == "test-queue"), + It.IsAny())) + .Returns(Task.CompletedTask); + + var sut = CreateSut(store.Object); + + await sut.PollOnceAsync(); + + store.Verify(f => f.RemoveDispatchedTimeoutAsync(timeoutId, (Guid?)null, It.IsAny()), Times.Once); + store.Verify(f => f.RemoveDispatchedTimeoutAsync(timeoutId, It.Is(g => g.HasValue), It.IsAny()), Times.Never); + } + + [Fact] + public async Task PollOnce_SendFails_WithLockOwner_PassesOwnerToRelease() + { + _mockConfig.Setup(c => c.EnableProcessManagerTimeouts).Returns(true); + + var timeoutId = Guid.NewGuid(); + var lockOwner = Guid.NewGuid(); + var store = new Mock(); + var batch = new TimeoutsBatch + { + DueTimeouts = + [ + new TimeoutData + { + Id = timeoutId, + ProcessManagerId = Guid.NewGuid(), + Destination = "test-queue", + Time = DateTimeOffset.UtcNow.AddMinutes(-1), + Headers = new Dictionary(), + Locked = true, + LockedBy = lockOwner, + LockExpiresAt = DateTimeOffset.UtcNow.AddMinutes(1) + } + ], + }; + + store.Setup(f => f.GetTimeoutsBatchAsync(It.IsAny(), It.IsAny())).ReturnsAsync(batch); + store.Setup(f => f.ReleaseDispatchedTimeoutAsync(timeoutId, (Guid?)lockOwner, It.IsAny())) + .Returns(Task.CompletedTask); + _mockBus.Setup(bus => bus.SendAsync( + It.IsAny(), + It.Is(options => options.EndPoint == "test-queue"), + It.IsAny())) + .ThrowsAsync(new InvalidOperationException("boom")); + + var sut = CreateSut(store.Object); + + await sut.PollOnceAsync(); + + store.Verify(f => f.ReleaseDispatchedTimeoutAsync(timeoutId, (Guid?)lockOwner, It.IsAny()), Times.Once); + store.Verify(f => f.ReleaseDispatchedTimeoutAsync(timeoutId, (Guid?)null, It.IsAny()), Times.Never); + } + + [Fact] + public async Task StopAsync_DisposesAndClearsCancellationSource() + { + _mockConfig.Setup(c => c.EnableProcessManagerTimeouts).Returns(true); + _mockFinder.Setup(f => f.GetTimeoutsBatchAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(new TimeoutsBatch { DueTimeouts = [] }); + + var sut = CreateSut(_mockFinder.Object); + + await sut.StartAsync(CancellationToken.None); + await sut.StopAsync(CancellationToken.None); + + var ctsField = typeof(ProcessManagerTimeoutService) + .GetField("_stoppingCts", BindingFlags.Instance | BindingFlags.NonPublic); + + Assert.NotNull(ctsField); + Assert.Null(ctsField!.GetValue(sut)); + } + + [Fact] + public async Task PollOnce_RemoveDispatchedThrowsForeignOCE_DoesNotPropagateAndDoesNotRelease() + { + // A foreign OCE (one that does not share the loop cancellation token) thrown by + // RemoveDispatchedTimeoutAsync must NOT propagate out of PollOnceAsync. Bubbling + // it up would let PollLoop's catch break without logging, silently ending the + // polling task. The foreign OCE is caught by the per-timeout + // `when (ex is not OperationCanceledException)` filter (so Release isn't attempted — + // the inner catch only handles non-OCE failures), then by the outer foreign-OCE + // catch in PollOnceAsync which logs a warning and returns cleanly. + _mockConfig.Setup(c => c.EnableProcessManagerTimeouts).Returns(true); + + var timeoutId = Guid.NewGuid(); + var batch = new TimeoutsBatch + { + DueTimeouts = + [ + new TimeoutData + { + Id = timeoutId, + ProcessManagerId = Guid.NewGuid(), + Destination = "test-queue", + Time = DateTimeOffset.UtcNow.AddMinutes(-1), + Headers = new Dictionary(), + } + ], + }; + + _mockFinder.Setup(f => f.GetTimeoutsBatchAsync(It.IsAny(), It.IsAny())).ReturnsAsync(batch); + _mockBus.Setup(bus => bus.SendAsync( + It.IsAny(), + It.IsAny(), + It.IsAny())) + .Returns(Task.CompletedTask); + _mockFinder.Setup(f => f.RemoveDispatchedTimeoutAsync(timeoutId, (Guid?)null, It.IsAny())) + .ThrowsAsync(new OperationCanceledException()); + + var sut = CreateSut(_mockFinder.Object); + + // Foreign OCE — outer token is default(CancellationToken) (never cancelled); the OCE + // is therefore not the shutdown OCE and must not propagate. + var ex = await Record.ExceptionAsync(() => sut.PollOnceAsync()); + Assert.Null(ex); + + // The per-timeout catch filters OCEs out (only non-OCE failures trigger Release), so + // ReleaseDispatchedTimeoutAsync is not called. + _mockFinder.Verify(f => f.ReleaseDispatchedTimeoutAsync(timeoutId, It.IsAny(), It.IsAny()), Times.Never); + } + + [Fact] + public async Task PollOnce_WhenSendSucceeds_PropagatesLifecycleTokenToRemove() + { + // The lifecycle token must be propagated to ReleaseDispatchedTimeoutAsync — it may + // already be cancelled if the token was signalled during SendAsync, but it is the + // same token supplied to PollOnceAsync. Passing CancellationToken.None instead would + // let release work continue past a shutdown signal. + _mockConfig.Setup(c => c.EnableProcessManagerTimeouts).Returns(true); + + var timeoutId = Guid.NewGuid(); + var batch = new TimeoutsBatch + { + DueTimeouts = + [ + new TimeoutData + { + Id = timeoutId, + ProcessManagerId = Guid.NewGuid(), + Destination = "test-queue", + Time = DateTimeOffset.UtcNow.AddMinutes(-1), + Headers = new Dictionary() + } + ], + }; + + using var cts = new CancellationTokenSource(); + _mockFinder.Setup(f => f.GetTimeoutsBatchAsync(It.IsAny(), It.IsAny())).ReturnsAsync(batch); + _mockBus.Setup(bus => bus.SendAsync( + It.IsAny(), + It.IsAny(), + It.IsAny())) + .Returns(Task.CompletedTask); + + CancellationToken removeToken = default; + _mockFinder.Setup(f => f.RemoveDispatchedTimeoutAsync(timeoutId, (Guid?)null, It.IsAny())) + .Callback((_, _, token) => removeToken = token) + .Returns(Task.CompletedTask); + + var sut = CreateSut(_mockFinder.Object); + + await sut.PollOnceAsync(cts.Token); + + // The token passed to Remove must be the lifecycle token, not CancellationToken.None. + Assert.Equal(cts.Token, removeToken); + } + + [Fact] + public async Task PollOnce_ReleaseDispatchedThrowsForeignOCE_DoesNotPropagate() + { + // Same contract as the Remove counterpart but on the Release path: SendAsync + // fails, then ReleaseDispatchedTimeoutAsync throws a foreign OCE during error + // recovery. Letting that OCE escape would hit PollLoop's break-without-logging + // branch; the outer foreign-OCE catch in PollOnceAsync logs a warning and + // returns cleanly. + _mockConfig.Setup(c => c.EnableProcessManagerTimeouts).Returns(true); + + var timeoutId = Guid.NewGuid(); + var batch = new TimeoutsBatch + { + DueTimeouts = + [ + new TimeoutData + { + Id = timeoutId, + ProcessManagerId = Guid.NewGuid(), + Destination = "test-queue", + Time = DateTimeOffset.UtcNow.AddMinutes(-1), + Headers = new Dictionary(), + } + ], + }; + + _mockFinder.Setup(f => f.GetTimeoutsBatchAsync(It.IsAny(), It.IsAny())).ReturnsAsync(batch); + _mockBus.Setup(bus => bus.SendAsync( + It.IsAny(), + It.IsAny(), + It.IsAny())) + .ThrowsAsync(new InvalidOperationException("boom")); + _mockFinder.Setup(f => f.ReleaseDispatchedTimeoutAsync(timeoutId, (Guid?)null, It.IsAny())) + .ThrowsAsync(new OperationCanceledException()); + + var sut = CreateSut(_mockFinder.Object); + + var ex = await Record.ExceptionAsync(() => sut.PollOnceAsync()); + Assert.Null(ex); + } + + [Fact] + public async Task PollOnceAsync_RemoveDispatchedTimeout_ReceivesPropagatedCancellationToken() + { + _mockConfig.Setup(c => c.EnableProcessManagerTimeouts).Returns(true); + + var timeoutId = Guid.NewGuid(); + var batch = new TimeoutsBatch + { + DueTimeouts = + [ + new TimeoutData + { + Id = timeoutId, + ProcessManagerId = Guid.NewGuid(), + Destination = "test-queue", + Time = DateTimeOffset.UtcNow.AddMinutes(-1), + Headers = new Dictionary(), + Locked = false + } + ], + }; + + _mockFinder.Setup(f => f.GetTimeoutsBatchAsync(It.IsAny(), It.IsAny())).ReturnsAsync(batch); + _mockBus.Setup(bus => bus.SendAsync( + It.IsAny(), + It.IsAny(), + It.IsAny())) + .Returns(Task.CompletedTask); + + CancellationToken? observedRemoveToken = null; + _mockFinder + .Setup(f => f.RemoveDispatchedTimeoutAsync(It.IsAny(), It.IsAny(), It.IsAny())) + .Callback((_, _, ct) => observedRemoveToken = ct) + .Returns(Task.CompletedTask); + + var sut = CreateSut(_mockFinder.Object); + + using var cts = new CancellationTokenSource(); + + await sut.PollOnceAsync(cts.Token); + + Assert.NotNull(observedRemoveToken); + Assert.Equal(cts.Token, observedRemoveToken.Value); + } + + [Fact] + public async Task PollOnce_RemoveFailsTransiently_ReturnsSentCountNotZero() + { + // When RemoveDispatchedTimeoutAsync throws on every item, PollOnceAsync must still + // return sentCount (the number of successful sends) so the catch-up loop in PollLoop + // can continue draining the backlog at full rate instead of exiting after one batch. + _mockConfig.Setup(c => c.EnableProcessManagerTimeouts).Returns(true); + + var timeoutId = Guid.NewGuid(); + var batch = new TimeoutsBatch + { + DueTimeouts = + [ + new TimeoutData + { + Id = timeoutId, + ProcessManagerId = Guid.NewGuid(), + Destination = "test-queue", + Time = DateTimeOffset.UtcNow.AddMinutes(-1), + Headers = new Dictionary() + } + ], + }; + + _mockFinder.Setup(f => f.GetTimeoutsBatchAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(batch); + _mockBus.Setup(bus => bus.SendAsync( + It.IsAny(), + It.IsAny(), + It.IsAny())) + .Returns(Task.CompletedTask); + _mockFinder.Setup(f => f.RemoveDispatchedTimeoutAsync(timeoutId, It.IsAny(), It.IsAny())) + .ThrowsAsync(new InvalidOperationException("store unavailable")); + + var sut = CreateSut(_mockFinder.Object); + + var result = await sut.PollOnceAsync(); + + // Sent one item successfully; result must reflect the send count, not zero. + Assert.Equal(1, result); + // Send was called — message was delivered. + _mockBus.Verify(b => b.SendAsync( + It.IsAny(), It.IsAny(), It.IsAny()), + Times.Once); + // Remove was attempted. + _mockFinder.Verify(f => f.RemoveDispatchedTimeoutAsync(timeoutId, It.IsAny(), It.IsAny()), + Times.Once); + // Release must NOT be called — the message was sent; this is not a send failure. + _mockFinder.Verify(f => f.ReleaseDispatchedTimeoutAsync(timeoutId, It.IsAny(), It.IsAny()), + Times.Never); + } + + [Fact] + public async Task PollOnce_RemoveFailsTransiently_LogsWarningPerItem() + { + // A warning must be emitted for each remove failure so the operator can observe + // store degradation without the loop silently slowing down. + _mockConfig.Setup(c => c.EnableProcessManagerTimeouts).Returns(true); + + var loggerMock = new Mock>(); + var timeoutId1 = Guid.NewGuid(); + var timeoutId2 = Guid.NewGuid(); + var batch = new TimeoutsBatch + { + DueTimeouts = + [ + new TimeoutData + { + Id = timeoutId1, + ProcessManagerId = Guid.NewGuid(), + Destination = "q", + Time = DateTimeOffset.UtcNow.AddMinutes(-1), + Headers = new Dictionary() + }, + new TimeoutData + { + Id = timeoutId2, + ProcessManagerId = Guid.NewGuid(), + Destination = "q", + Time = DateTimeOffset.UtcNow.AddMinutes(-1), + Headers = new Dictionary() + } + ], + }; + + var store = new Mock(); + store.Setup(f => f.GetTimeoutsBatchAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(batch); + _mockBus.Setup(bus => bus.SendAsync( + It.IsAny(), + It.IsAny(), + It.IsAny())) + .Returns(Task.CompletedTask); + store.Setup(f => f.RemoveDispatchedTimeoutAsync(It.IsAny(), It.IsAny(), It.IsAny())) + .ThrowsAsync(new InvalidOperationException("store unavailable")); + + var sut = new ProcessManagerTimeoutService( + _mockConfig.Object, + new Lazy(() => _mockBus.Object), + store.Object, + loggerMock.Object); + + var result = await sut.PollOnceAsync(); + + // Both items were sent — result is 2. + Assert.Equal(2, result); + // One warning logged per remove failure. + loggerMock.Verify(l => l.Log( + LogLevel.Warning, + It.IsAny(), + It.IsAny(), + It.IsAny(), + It.IsAny>()), + Times.Exactly(2)); + } + + [Fact] + public async Task PollOnce_EmptyDestinationRow_DoesNotIncrementSentCount() + { + // A row with an empty Destination has no message to send, so it must not count + // toward sentCount and must not drive the catch-up loop forward. The row is still + // removed below, but send count stays at zero. + _mockConfig.Setup(c => c.EnableProcessManagerTimeouts).Returns(true); + + var timeoutId = Guid.NewGuid(); + var batch = new TimeoutsBatch + { + DueTimeouts = + [ + new TimeoutData + { + Id = timeoutId, + ProcessManagerId = Guid.NewGuid(), + Destination = "", + Time = DateTimeOffset.UtcNow.AddMinutes(-1), + Headers = new Dictionary(), + Locked = false + } + ], + }; + + _mockFinder.Setup(f => f.GetTimeoutsBatchAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(batch); + _mockFinder.Setup(f => f.RemoveDispatchedTimeoutAsync(timeoutId, (Guid?)null, It.IsAny())) + .Returns(Task.CompletedTask); + + var sut = CreateSut(_mockFinder.Object); + + var result = await sut.PollOnceAsync(); + + // No send was made for an empty-destination row. + Assert.Equal(0, result); + _mockBus.Verify(b => b.SendAsync( + It.IsAny(), It.IsAny(), It.IsAny()), + Times.Never); + } + + [Fact] + public async Task StopAsyncAndDisposeAsync_ConcurrentlyRaced_DoesNotDoubleDisposeCts() + { + // Both StopAsync and DisposeAsync take responsibility for _cts.Dispose(); both must + // claim the CTS via Interlocked.Exchange so that a race between them does not have + // both call Dispose on the same instance and raise ObjectDisposedException. + // Note: the race window is narrow, so this trial-loop is intentionally aggressive. + for (var trial = 0; trial < 50; trial++) + { + var mockConfig = new Mock(); + mockConfig.Setup(c => c.EnableProcessManagerTimeouts).Returns(true); + var mockFinder = new Mock(); + mockFinder.Setup(f => f.GetTimeoutsBatchAsync(It.IsAny(), It.IsAny())) + .ReturnsAsync(new TimeoutsBatch { DueTimeouts = [] }); + + var sut = new ProcessManagerTimeoutService( + mockConfig.Object, + new Lazy(() => new Mock().Object), + mockFinder.Object, + new Mock>().Object); + + await sut.StartAsync(CancellationToken.None); + + var stopTask = Task.Run(() => sut.StopAsync(CancellationToken.None)); + var disposeTask = Task.Run(async () => await sut.DisposeAsync()); + + var stopEx = await Record.ExceptionAsync(async () => await stopTask); + var disposeEx = await Record.ExceptionAsync(async () => await disposeTask); + + Assert.Null(stopEx); + Assert.Null(disposeEx); + } + } +} diff --git a/src/ServiceConnect.UnitTests/Services/RegistryInitializerTests.cs b/src/ServiceConnect.UnitTests/Services/RegistryInitializerTests.cs new file mode 100644 index 000000000..aee718140 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/RegistryInitializerTests.cs @@ -0,0 +1,74 @@ +using System.Linq; +using Microsoft.Extensions.DependencyInjection; +using Moq; +using ServiceConnect.DependencyInjection; +using ServiceConnect.Interfaces; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +public class RegistryInitializerTests +{ + private static IServiceCollection CreateServices() + { + var services = new ServiceCollection(); + services.AddSingleton(new Mock().Object); + services.AddLogging(); + return services; + } + + [Fact] + public void Initialize_ShouldResolveAllRegistries_WithoutThrowingException() + { + // Arrange + var services = CreateServices(); + services.AddServiceConnect(b => b + .ConfigureQueues(q => q.QueueName = "test") + .ConfigureBus(c => c.ScanForMessageHandlers = false)); + + var provider = services.BuildServiceProvider(); + var initializer = provider.GetRequiredService(); + + // Act & Assert - should not throw + initializer.Initialize(); + Assert.Equal(4, provider.GetRequiredService>().Count()); + } + + [Fact] + public void AddServiceConnect_ShouldRegisterIRegistryInitializer() + { + // Arrange + var services = CreateServices(); + services.AddServiceConnect(b => b + .ConfigureQueues(q => q.QueueName = "test") + .ConfigureBus(c => c.ScanForMessageHandlers = false)); + + var provider = services.BuildServiceProvider(); + + // Act + var initializer = provider.GetService(); + + // Assert + Assert.NotNull(initializer); + } + + [Fact] + public void AddServiceConnect_BusFactory_ShouldCallIRegistryInitializer() + { + // Arrange + var services = CreateServices(); + services.AddServiceConnect(b => b + .ConfigureQueues(q => q.QueueName = "test") + .ConfigureBus(c => c.ScanForMessageHandlers = false)); + + var provider = services.BuildServiceProvider(); + + // Act - Resolving IBus should trigger IRegistryInitializer.Initialize() + var bus = provider.GetRequiredService(); + + // Assert - If registries weren't initialized, we'd get an exception + // The fact we got a bus instance proves initialization worked + Assert.NotNull(bus); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/RequestReplyManagerCallbackReentrancyTests.cs b/src/ServiceConnect.UnitTests/Services/RequestReplyManagerCallbackReentrancyTests.cs new file mode 100644 index 000000000..d9c3f17ec --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/RequestReplyManagerCallbackReentrancyTests.cs @@ -0,0 +1,112 @@ +using System; +using System.Collections.Generic; +using System.Linq; +using System.Threading; +using System.Threading.Tasks; +using Moq; +using ServiceConnect.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; +using ServiceConnect.Services; +using ServiceConnect.UnitTests.Fakes; +using ServiceConnect.UnitTests.Fakes.Messages; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +/// +/// Pre-refactor, the OnReply user callback ran outside the per-request state lock — +/// two concurrent replies could enter the callback at the same time, breaking the +/// documented "one callback invocation per accepted reply" contract for callers that +/// did not internally lock. Post-refactor TryHandleReply holds the state lock for the +/// whole reply lifecycle (deserialize, OnReply, completion), so concurrent replies +/// serialize through the callback. +/// +/// Uses PublishRequestAsync because its onReply delegate is supplied +/// directly by the caller, making re-entrancy observable at the user-callback boundary. +/// +public sealed class RequestReplyManagerCallbackReentrancyTests +{ + [Fact] + public async Task PublishRequestAsync_ConcurrentReplies_OnReplyNotInvokedConcurrently() + { + const int expectedReplyCount = 5; + + var serializer = new Mock(); + serializer.SetupSerializeAny([1, 2, 3]); + serializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))) + .Returns(() => new FakeMessage1(Guid.NewGuid()) { Username = "x" }); + + var pipeline = new Mock(); + RequestReplyManager? manager = null; + string? capturedMessageId = null; + + pipeline.Setup(p => p.ExecuteSendMessagePipelineAsync(It.IsAny(), It.IsAny())) + .Callback((ctx, _) => capturedMessageId = ctx.Headers["RequestMessageId"]) + .Returns(Task.CompletedTask); + + manager = new RequestReplyManager(serializer.Object, pipeline.Object, new BusConfiguration()); + + // Build a request whose internal onReply (set up by SendRequestMultiAsync to + // append to a responses list) we wrap by spying on the public-visible side + // effect: the reply count grows monotonically and SendRequestMultiAsync's + // internal lock prevents collection corruption. To observe re-entrancy we need + // to inspect the lock around the user-visible callback; SendRequestMultiAsync + // doesn't expose one, so we use PublishRequestAsync which forwards the user's + // onReply directly. + + var concurrency = 0; + var maxConcurrency = 0; + var totalReplies = 0; + var maxConcurrencyLock = new object(); + + var options = new RequestOptions { Timeout = 30_000, ExpectedReplyCount = expectedReplyCount }; + + pipeline.Setup(p => p.ExecutePublishMessagePipelineAsync(It.IsAny(), It.IsAny())) + .Callback((ctx, _) => capturedMessageId = ctx.Headers["RequestMessageId"]) + .Returns(Task.CompletedTask); + + var publishTask = manager.PublishRequestAsync( + new FakeMessage1(Guid.NewGuid()), + new Dictionary(), + options, + _ => + { + var current = Interlocked.Increment(ref concurrency); + lock (maxConcurrencyLock) + { + if (current > maxConcurrency) + { + maxConcurrency = current; + } + } + // Sleep briefly so racing threads have a chance to overlap if the + // callback isn't serialized. + Thread.Sleep(5); + Interlocked.Decrement(ref concurrency); + Interlocked.Increment(ref totalReplies); + }); + + // Wait for the publish pipeline to record the request id. + var spinDeadline = DateTime.UtcNow.AddSeconds(5); + while (capturedMessageId is null && DateTime.UtcNow < spinDeadline) + { + await Task.Yield(); + } + Assert.NotNull(capturedMessageId); + + // Fire ExpectedReplyCount replies in parallel from independent worker threads. + var workers = Enumerable.Range(0, expectedReplyCount) + .Select(_ => Task.Run(() => manager.TryProcessReply(capturedMessageId!, new byte[] { 1 }, typeof(FakeMessage1)))) + .ToArray(); + + await Task.WhenAll(workers); + await publishTask; + + Assert.Equal(expectedReplyCount, totalReplies); + // The single state lock around OnReply means only one thread can be inside the + // callback at any instant. If the lock were ever dropped while OnReply runs, + // maxConcurrency would observe at least 2. + Assert.Equal(1, maxConcurrency); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/RequestReplyManagerConcurrencyTests.cs b/src/ServiceConnect.UnitTests/Services/RequestReplyManagerConcurrencyTests.cs new file mode 100644 index 000000000..ff541c9a1 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/RequestReplyManagerConcurrencyTests.cs @@ -0,0 +1,262 @@ +using System; +using System.Collections.Concurrent; +using System.Collections.Generic; +using System.Linq; +using System.Threading; +using System.Threading.Tasks; +using Moq; +using ServiceConnect.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Exceptions; +using ServiceConnect.Interfaces.Options; +using ServiceConnect.Services; +using ServiceConnect.UnitTests.Fakes; +using ServiceConnect.UnitTests.Fakes.Messages; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +/// +/// Concurrency exercises for . The correlation +/// dictionary, per-request RequestState, and timeout/reply race are all +/// shared mutable state on the request-reply hot path; bugs only show up when +/// many requests and replies overlap in flight. +/// +public class RequestReplyManagerConcurrencyTests +{ + [Fact] + public async Task ParallelSendRequest_EachReceivesItsOwnReply() + { + // N concurrent requests must each be correlated back to exactly the reply + // delivered for that request — no cross-correlation, no missed completion. + const int requestCount = 128; + + var serializer = new Mock(); + var pipeline = new Mock(); + + // Map captured request id -> caller's username so the per-request reply we + // dispatch later carries the right correlation back to the caller. Driving + // correlation through this map keeps the deserializer mock dependency-free. + var usernameByRequestId = new ConcurrentDictionary(StringComparer.Ordinal); + // Deserialize is keyed off the bytes we hand into ProcessReply — encode the + // request id directly as a UTF-8 string so the mock can recover it. + RequestReplyManager? manager = null; + + // The Serialize callback writes the bytes that ProcessReply later receives; + // here we only need a non-empty payload — the Deserialize mock keys off the + // bytes ProcessReply is given (the request id encoded as UTF-8) below. + serializer.SetupSerializeAny([0]); + serializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))) + .Returns(new InvocationFunc(invocation => + { + var data = (ReadOnlyMemory)invocation.Arguments[0]; + var requestId = System.Text.Encoding.UTF8.GetString(data.Span); + var username = usernameByRequestId.TryGetValue(requestId, out var u) ? u : "unknown"; + return new FakeMessage1(Guid.NewGuid()) { Username = $"reply-for-{username}" }; + })); + + pipeline.Setup(p => p.ExecuteSendMessagePipelineAsync(It.IsAny(), It.IsAny())) + .Callback((ctx, ct) => + { + var requestId = ctx.Headers["RequestMessageId"]; + var bytes = System.Text.Encoding.UTF8.GetBytes(requestId); + var msg = (FakeMessage1)ctx.Message; + usernameByRequestId[requestId] = msg.Username; + // Schedule reply on a background thread to drive the real reply/await race. + _ = Task.Run(() => manager!.ProcessReply(requestId, bytes, typeof(FakeMessage1))); + _ = ct; + }) + .Returns(Task.CompletedTask); + + manager = new RequestReplyManager(serializer.Object, pipeline.Object, new BusConfiguration()); + + var tasks = Enumerable.Range(0, requestCount).Select(i => Task.Run(async () => + { + var headers = new Dictionary(StringComparer.Ordinal); + var request = new FakeMessage1(Guid.NewGuid()) { Username = $"caller-{i}" }; + var reply = await manager.SendRequestAsync( + request, headers, new RequestOptions { Timeout = 10_000 }); + return (i, reply.Username); + })).ToArray(); + + var results = await Task.WhenAll(tasks); + + Assert.Equal(requestCount, results.Length); + foreach (var (i, replyUsername) in results) + { + Assert.Equal($"reply-for-caller-{i}", replyUsername); + } + } + + [Fact] + public async Task ConcurrentRepliesToSameRequest_OnlyFirstSatisfiesSingleAwait() + { + // ProcessReply may run from many channel threads at once. For a single-reply + // request, the second reply MUST be ignored (returns false from TryProcessReply). + var serializer = new Mock(); + var pipeline = new Mock(); + + var requestId = (string?)null; + RequestReplyManager? manager = null; + + serializer.SetupSerializeAny([1]); + serializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))) + .Returns(new FakeMessage1(Guid.NewGuid()) { Username = "winner" }); + + pipeline.Setup(p => p.ExecuteSendMessagePipelineAsync(It.IsAny(), It.IsAny())) + .Callback((ctx, _) => requestId = ctx.Headers["RequestMessageId"]) + .Returns(Task.CompletedTask); + + manager = new RequestReplyManager(serializer.Object, pipeline.Object, new BusConfiguration()); + + var requestTask = manager.SendRequestAsync( + new FakeMessage1(Guid.NewGuid()) { Username = "x" }, + new Dictionary(StringComparer.Ordinal), + new RequestOptions { Timeout = 10_000 }); + + // Spin until the manager has registered the request and recorded the id. + var spinDeadline = DateTime.UtcNow.AddSeconds(5); + while (requestId is null && DateTime.UtcNow < spinDeadline) + { + await Task.Yield(); + } + Assert.NotNull(requestId); + + const int replyAttempts = 32; + var accepted = 0; + var workers = Enumerable.Range(0, replyAttempts).Select(_ => Task.Run(() => + { + if (manager.TryProcessReply(requestId!, new byte[] { 1 }, typeof(FakeMessage1))) + { + Interlocked.Increment(ref accepted); + } + })).ToArray(); + + await Task.WhenAll(workers); + var resolved = await requestTask; + + Assert.Equal("winner", resolved.Username); + Assert.Equal(1, accepted); + } + + [Fact] + public async Task ConcurrentReplyAndTimeout_RequestCompletesExactlyOnce() + { + // The timeout callback and a late reply may both fire essentially simultaneously. + // The TaskCompletionSource must complete exactly once; whichever path wins, + // no exception escapes from the loser's TrySet call. + const int iterations = 50; + + for (var iter = 0; iter < iterations; iter++) + { + var serializer = new Mock(); + var pipeline = new Mock(); + string? requestId = null; + RequestReplyManager? manager = null; + + serializer.SetupSerializeAny([1]); + serializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))) + .Returns(new FakeMessage1(Guid.NewGuid()) { Username = "late-reply" }); + + pipeline.Setup(p => p.ExecuteSendMessagePipelineAsync(It.IsAny(), It.IsAny())) + .Callback((ctx, _) => requestId = ctx.Headers["RequestMessageId"]) + .Returns(Task.CompletedTask); + + manager = new RequestReplyManager(serializer.Object, pipeline.Object, new BusConfiguration()); + + var requestTask = manager.SendRequestAsync( + new FakeMessage1(Guid.NewGuid()) { Username = "x" }, + new Dictionary(StringComparer.Ordinal), + new RequestOptions { Timeout = 25 }); + + // Wait until headers are populated, then race a reply against the timer. + var spinDeadline = DateTime.UtcNow.AddSeconds(2); + while (requestId is null && DateTime.UtcNow < spinDeadline) + { + await Task.Yield(); + } + Assert.NotNull(requestId); + + // Fire the reply on a background thread at roughly the same instant the + // timeout would fire — this is the actual race we want to exercise. + var replyTask = Task.Run(() => manager.TryProcessReply(requestId!, new byte[] { 1 }, typeof(FakeMessage1))); + + // Either path is acceptable: a successful reply OR a RequestTimeoutException. + // What is NOT acceptable: an unexpected exception or hang. + try + { + var reply = await requestTask; + Assert.Equal("late-reply", reply.Username); + } + catch (RequestTimeoutException) + { + // Timeout won the race — also valid. + } + + await replyTask; + } + } + + [Fact] + public async Task ParallelPublishRequest_AllRepliesAccountedFor() + { + // PublishRequestAsync with ExpectedReplyCount must fire onReply exactly + // expected-count times when that many replies arrive concurrently, and + // complete the awaiting task afterwards. + const int callerCount = 8; + const int repliesPerCaller = 16; + + var serializer = new Mock(); + var pipeline = new Mock(); + RequestReplyManager? manager = null; + + var idsByCaller = new ConcurrentDictionary(); + var nextCallerSeed = 0; + + serializer.SetupSerializeAny([0]); + serializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))) + .Returns(new FakeMessage1(Guid.NewGuid()) { Username = "ok" }); + + pipeline.Setup(p => p.ExecutePublishMessagePipelineAsync(It.IsAny(), It.IsAny())) + .Callback((ctx, _) => + { + var caller = (FakeMessage1)ctx.Message; + var seed = int.Parse(caller.Username, System.Globalization.CultureInfo.InvariantCulture); + idsByCaller[seed] = ctx.Headers["RequestMessageId"]; + }) + .Returns(Task.CompletedTask); + + manager = new RequestReplyManager(serializer.Object, pipeline.Object, new BusConfiguration()); + + var callerTasks = Enumerable.Range(0, callerCount).Select(_ => Task.Run(async () => + { + var seed = Interlocked.Increment(ref nextCallerSeed); + var received = 0; + var publishTask = manager.PublishRequestAsync( + new FakeMessage1(Guid.NewGuid()) { Username = seed.ToString(System.Globalization.CultureInfo.InvariantCulture) }, + new Dictionary(StringComparer.Ordinal), + new RequestOptions { Timeout = 30_000, ExpectedReplyCount = repliesPerCaller }, + _ => Interlocked.Increment(ref received)); + + // Wait until the manager has stored the request id, then spray replies + // back from many threads at once. + var spinDeadline = DateTime.UtcNow.AddSeconds(5); + while (!idsByCaller.ContainsKey(seed) && DateTime.UtcNow < spinDeadline) + { + await Task.Yield(); + } + Assert.True(idsByCaller.TryGetValue(seed, out var requestId)); + + var replyTasks = Enumerable.Range(0, repliesPerCaller).Select(_ => Task.Run(() => + manager.TryProcessReply(requestId!, new byte[] { 1 }, typeof(FakeMessage1)))).ToArray(); + await Task.WhenAll(replyTasks); + + await publishTask; + return received; + })).ToArray(); + + var results = await Task.WhenAll(callerTasks); + + Assert.All(results, r => Assert.Equal(repliesPerCaller, r)); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/RequestReplyManagerFaultSuppressionTests.cs b/src/ServiceConnect.UnitTests/Services/RequestReplyManagerFaultSuppressionTests.cs new file mode 100644 index 000000000..6c2a1e031 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/RequestReplyManagerFaultSuppressionTests.cs @@ -0,0 +1,37 @@ +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +public sealed class RequestReplyManagerFaultSuppressionTests +{ + [Fact] + public async Task SuppressUnobservedFault_FaultedTask_DoesNotThrowAndPreservesFaultedState() + { + // Authoritatively verifying "the GC finaliser does not raise UnobservedTaskException" + // would require forcing GC pressure and subscribing to the static event — brittle in + // test runners. This test verifies the weaker but still useful property: the helper + // is safe to call on a faulted task and leaves it in IsFaulted state. + var tcs = new TaskCompletionSource(); + tcs.SetException(new InvalidOperationException("synthetic fault")); + + RequestReplyManager.SuppressUnobservedFault(tcs.Task); + + // The continuation is ExecuteSynchronously on the antecedent completion, so it should + // already have run by the time SetException returns; a tiny yield is belt-and-braces. + await Task.Yield(); + + Assert.True(tcs.Task.IsFaulted); + Assert.NotNull(tcs.Task.Exception); + } + + [Fact] + public void SuppressUnobservedFault_SuccessfullyCompletedTask_DoesNotThrow() + { + // The continuation is OnlyOnFaulted, so a successfully-completed task never invokes it. + // This test is a smoke test that the helper is safe to call on the success path. + var completed = Task.FromResult(42); + RequestReplyManager.SuppressUnobservedFault(completed); + Assert.Equal(TaskStatus.RanToCompletion, completed.Status); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/RequestReplyManagerInFlightCounterTests.cs b/src/ServiceConnect.UnitTests/Services/RequestReplyManagerInFlightCounterTests.cs new file mode 100644 index 000000000..af568760f --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/RequestReplyManagerInFlightCounterTests.cs @@ -0,0 +1,136 @@ +using System; +using System.Collections.Generic; +using System.Threading; +using System.Threading.Tasks; +using Moq; +using ServiceConnect.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; +using ServiceConnect.Services; +using ServiceConnect.UnitTests.Fakes; +using ServiceConnect.UnitTests.Fakes.Messages; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +/// +/// Regression-guards: duplicate replies are rejected at the manager boundary, and +/// replies arriving after timeout-driven Close are rejected. The legacy +/// _inFlightReplies counter (and its underflow risk) was structurally eliminated +/// by removing the counter; these tests guard the user-visible invariant (no extra +/// OnReply, no exception) rather than the internal counter. +/// +/// Both facts exercise the _pendingRequests.TryGetValue early-return in +/// TryProcessReply: once a request completes or times out the entry is removed, +/// so late replies exit before reaching any per-request state. +/// +public sealed class RequestReplyManagerInFlightCounterTests +{ + [Fact] + public async Task SendRequestMultiAsync_DuplicateRepliesAfterCompletion_AreIgnoredWithoutSideEffects() + { + // Drive the request to completion with the expected number of replies, then push + // additional replies through TryProcessReply. The state has been removed from + // _pendingRequests after completion, so TryProcessReply should return false and + // the user-supplied onReply (we count via the responses-collection size) must + // not see the duplicates. + var serializer = new Mock(); + serializer.SetupSerializeAny([1, 2, 3]); + + // Each Deserialize call hands back a fresh reply object so the manager's Add + // into the responses list always sees a real value. + serializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))) + .Returns(() => new FakeMessage1(Guid.NewGuid()) { Username = "ok" }); + + var pipeline = new Mock(); + RequestReplyManager? manager = null; + string? capturedMessageId = null; + + pipeline.Setup(p => p.ExecuteSendMessagePipelineAsync(It.IsAny(), It.IsAny())) + .Callback((ctx, _ct) => + { + capturedMessageId = ctx.Headers["RequestMessageId"]; + _ = Task.Run(() => + { + // Two replies satisfy ExpectedReplyCount and complete the request. + manager!.ProcessReply(capturedMessageId!, new byte[] { 1 }, typeof(FakeMessage1)); + manager!.ProcessReply(capturedMessageId!, new byte[] { 1 }, typeof(FakeMessage1)); + }); + }) + .Returns(Task.CompletedTask); + + manager = new RequestReplyManager(serializer.Object, pipeline.Object, new BusConfiguration()); + + var options = new RequestOptions { Timeout = 5_000, ExpectedReplyCount = 2 }; + var responses = await manager.SendRequestMultiAsync( + new FakeMessage1(Guid.NewGuid()), + new Dictionary(), + options); + + Assert.Equal(2, responses.Count); + Assert.NotNull(capturedMessageId); + + // Now feed two more replies post-completion. They must be rejected — the state + // was removed from _pendingRequests when the second reply completed the request. + // No exception, no underflow, no spurious onReply invocations. + var lateAccepted1 = manager.TryProcessReply(capturedMessageId!, new byte[] { 1 }, typeof(FakeMessage1)); + var lateAccepted2 = manager.TryProcessReply(capturedMessageId!, new byte[] { 1 }, typeof(FakeMessage1)); + + Assert.False(lateAccepted1); + Assert.False(lateAccepted2); + // Deserialize was invoked exactly twice (for the two real replies). The two late + // replies returned false from TryProcessReply before reaching Deserialize. + serializer.Verify(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1)), Times.Exactly(2)); + } + + [Fact] + public async Task ProcessReply_AfterCloseFromTimeout_DoesNotInvokeOnReply() + { + // The timeout's cancellation removes the request from _pendingRequests before + // returning. A late reply arriving after that removal hits the TryGetValue + // early-return in TryProcessReply and returns false without ever reaching + // per-request state. Post-refactor: _pendingRequests is removed during request + // completion, so late replies exit at the dictionary lookup. Test guards the + // user-visible invariant: no OnReply for replies arriving after the request + // completes. + var serializer = new Mock(); + serializer.SetupSerializeAny([1, 2, 3]); + serializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))) + .Returns(() => new FakeMessage1(Guid.NewGuid()) { Username = "late" }); + + var pipeline = new Mock(); + RequestReplyManager? manager = null; + string? capturedMessageId = null; + var onReplyInvocations = 0; + + pipeline.Setup(p => p.ExecutePublishMessagePipelineAsync(It.IsAny(), It.IsAny())) + .Callback((ctx, _) => capturedMessageId = ctx.Headers["RequestMessageId"]) + .Returns(Task.CompletedTask); + + manager = new RequestReplyManager(serializer.Object, pipeline.Object, new BusConfiguration()); + + // The awaited PublishRequestAsync must time out AFTER the send pipeline has + // completed; a too-tight timeout (e.g. 1 ms) loses the race under suite load + // and PublishRequestAsync throws RequestTimeoutException via the send-not- + // completed branch (line 380-384 of RequestReplyManager). 50 ms is short + // enough to keep the test fast but long enough that the synchronous mock + // pipeline always wins. + // ExpectedReplyCount is unset so a 0-reply timeout completes successfully. + var options = new RequestOptions { Timeout = 50 }; + var publishTask = manager.PublishRequestAsync( + new FakeMessage1(Guid.NewGuid()), + new Dictionary(), + options, + _ => Interlocked.Increment(ref onReplyInvocations)); + + await publishTask; + + Assert.NotNull(capturedMessageId); + + // After the publish task completes, the request id may already have been removed + // from _pendingRequests. Either way, the late reply must NOT invoke onReply. + manager.TryProcessReply(capturedMessageId!, new byte[] { 1 }, typeof(FakeMessage1)); + + Assert.Equal(0, onReplyInvocations); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/RequestReplyManagerMaxInflightConfigurableTests.cs b/src/ServiceConnect.UnitTests/Services/RequestReplyManagerMaxInflightConfigurableTests.cs new file mode 100644 index 000000000..617540dc8 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/RequestReplyManagerMaxInflightConfigurableTests.cs @@ -0,0 +1,142 @@ +using System; +using System.Collections.Generic; +using System.Threading; +using System.Threading.Tasks; +using Moq; +using ServiceConnect.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; +using ServiceConnect.Services; +using ServiceConnect.UnitTests.Fakes; +using ServiceConnect.UnitTests.Fakes.Messages; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +/// +/// Verifies that the in-flight request cap previously hard-coded as +/// RequestReplyManager.MaxInflightRequests = 10_000 is now sourced from +/// . +/// The cap check is _pendingRequests.Count >= _maxInflightRequests, so a configured +/// value of 1 rejects the second concurrent request while the first is still in flight. +/// +public class RequestReplyManagerMaxInflightConfigurableTests +{ + [Fact] + public void BusConfiguration_MaxInflightRequests_DefaultsTo10_000() + { + var config = new BusConfiguration(); + + Assert.Equal(10_000, config.MaxInflightRequests); + } + + [Fact] + public async Task SendRequestAsync_AtConfiguredCap_ThrowsAndQuotesConfiguredValue() + { + // Send pipeline parks on a Task.Delay tied to a test-owned CTS — never on the + // inner linkedCts of SendRequestAsync, which is uncancellable when Timeout.Infinite + // is combined with CancellationToken.None. The first request occupies the only + // allowed slot; the second hits the cap check before allocating a RequestState. + var serializer = new Mock(); + serializer.SetupSerializeAny([1, 2, 3]); + + using var pipelineCts = new CancellationTokenSource(); + var pipeline = new Mock(); + pipeline.Setup(p => p.ExecuteSendMessagePipelineAsync( + It.IsAny(), + It.IsAny())) + .Returns((_, _) => Task.Delay(Timeout.Infinite, pipelineCts.Token)); + + var config = new BusConfiguration { MaxInflightRequests = 1 }; + var manager = new RequestReplyManager(serializer.Object, pipeline.Object, config); + + var firstOptions = new RequestOptions { Timeout = Timeout.Infinite }; + var first = manager.SendRequestAsync( + new FakeMessage1(Guid.NewGuid()), + new Dictionary(), + firstOptions, + CancellationToken.None); + + // Yield so the first registration completes before the cap-check call. + await Task.Delay(50); + + var secondOptions = new RequestOptions { Timeout = 5_000 }; + var ex = await Assert.ThrowsAsync(() => + manager.SendRequestAsync( + new FakeMessage1(Guid.NewGuid()), + new Dictionary(), + secondOptions, + CancellationToken.None)); + + // Message must quote the configured cap (1), not the legacy default (10_000). + Assert.Contains("(1)", ex.Message); + Assert.DoesNotContain("10000", ex.Message); + Assert.DoesNotContain("10_000", ex.Message); + + // Tidy up the pending first request. Cancelling the pipeline CTS surfaces an OCE + // through the pipeline mock; SendRequestAsync propagates that as a faulted Task. + pipelineCts.Cancel(); + await manager.DisposeAsync(); + await Assert.ThrowsAnyAsync(() => first); + } + + [Fact] + public async Task SendRequestMultiAsync_AtConfiguredCap_ThrowsAndQuotesConfiguredValue() + { + // Same shape as the SendRequestAsync test but exercising the multi-reply branch. + var serializer = new Mock(); + serializer.SetupSerializeAny([1, 2, 3]); + + using var pipelineCts = new CancellationTokenSource(); + var pipeline = new Mock(); + pipeline.Setup(p => p.ExecuteSendMessagePipelineAsync( + It.IsAny(), + It.IsAny())) + .Returns((_, _) => Task.Delay(Timeout.Infinite, pipelineCts.Token)); + + var config = new BusConfiguration { MaxInflightRequests = 2 }; + var manager = new RequestReplyManager(serializer.Object, pipeline.Object, config); + + var infiniteOptions = new RequestOptions { Timeout = Timeout.Infinite }; + var first = manager.SendRequestMultiAsync( + new FakeMessage1(Guid.NewGuid()), + new Dictionary(), + infiniteOptions, + CancellationToken.None); + var second = manager.SendRequestMultiAsync( + new FakeMessage1(Guid.NewGuid()), + new Dictionary(), + infiniteOptions, + CancellationToken.None); + + // Yield so both pending entries register before the third call. + await Task.Delay(50); + + var thirdOptions = new RequestOptions { Timeout = 5_000 }; + var ex = await Assert.ThrowsAsync(() => + manager.SendRequestMultiAsync( + new FakeMessage1(Guid.NewGuid()), + new Dictionary(), + thirdOptions, + CancellationToken.None)); + + Assert.Contains("(2)", ex.Message); + Assert.DoesNotContain("10000", ex.Message); + Assert.DoesNotContain("10_000", ex.Message); + + pipelineCts.Cancel(); + await manager.DisposeAsync(); + await Assert.ThrowsAnyAsync(() => first); + await Assert.ThrowsAnyAsync(() => second); + } + + [Fact] + public void Constructor_ThrowsWhenBusConfigurationIsNull() + { + var serializer = new Mock(MockBehavior.Loose); + var pipeline = new Mock(MockBehavior.Loose); + + Assert.Throws(() => + new RequestReplyManager(serializer.Object, pipeline.Object, null!)); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/RequestReplyManagerSendCancelTests.cs b/src/ServiceConnect.UnitTests/Services/RequestReplyManagerSendCancelTests.cs new file mode 100644 index 000000000..cdb22960f --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/RequestReplyManagerSendCancelTests.cs @@ -0,0 +1,193 @@ +using System; +using System.Collections.Generic; +using System.Diagnostics; +using System.Threading; +using System.Threading.Tasks; +using Moq; +using ServiceConnect.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Exceptions; +using ServiceConnect.Interfaces.Options; +using ServiceConnect.Services; +using ServiceConnect.UnitTests.Fakes; +using ServiceConnect.UnitTests.Fakes.Messages; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +/// +/// When the linked CTS (timeout) cancels the outbound send pipeline before the send +/// completes, and the caller's own token did NOT fire, the call must surface the typed +/// immediately rather than stalling on the +/// pending-reply TCS until the timeout deadline. +/// +[Collection(SerialConcurrencyCollection.Name)] +public sealed class RequestReplyManagerSendCancelTests +{ + // Generous fail-fast bound: the typed exception path observes cancellation directly, + // so anything beyond a couple of hundred milliseconds means we accidentally took the + // timeout path. Bound is loose enough to survive scheduler jitter on busy CI. + private const int FailFastBudgetMs = 500; + + [Fact] + public async Task SendRequestAsync_SendPipelineCancelled_NotByCallerToken_ThrowsRequestSendCancelled() + { + var serializer = new Mock(); + serializer.SetupSerializeAny([1, 2, 3]); + + var pipeline = new Mock(); + pipeline + .Setup(p => p.ExecuteSendMessagePipelineAsync(It.IsAny(), It.IsAny())) + .Returns(async (SendContext _, CancellationToken ct) => + { + // Block until the linked CTS (timeout) fires; this models a transport + // that never acknowledges the send before the deadline. + var tcs = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + using (ct.Register(() => tcs.TrySetCanceled(ct))) + { + await tcs.Task.ConfigureAwait(false); + } + }); + + var manager = new RequestReplyManager(serializer.Object, pipeline.Object, new BusConfiguration()); + var options = new RequestOptions { Timeout = 200, EndPoint = "test-endpoint" }; + var headers = new Dictionary(); + + var sw = Stopwatch.StartNew(); + var ex = await Assert.ThrowsAsync(() => + manager.SendRequestAsync(new FakeMessage1(Guid.NewGuid()), headers, options)); + sw.Stop(); + + // The typed exception must surface as soon as the send pipeline reports + // cancellation; blocking on the reply TCS until the timeout (~200ms) and + // observing RequestTimeoutException would miss the send-failure signal. + Assert.True(sw.ElapsedMilliseconds < FailFastBudgetMs, + $"Expected fail-fast (< {FailFastBudgetMs}ms); got {sw.ElapsedMilliseconds}ms."); + Assert.NotEqual(Guid.Empty, ex.MessageId); + } + + [Fact] + public async Task SendRequestAsync_CallerTokenCancelled_StillThrowsOperationCanceled_NotRequestSendCancelled() + { + var serializer = new Mock(); + serializer.SetupSerializeAny([1, 2, 3]); + + var pipeline = new Mock(); + pipeline + .Setup(p => p.ExecuteSendMessagePipelineAsync(It.IsAny(), It.IsAny())) + .Returns(async (SendContext _, CancellationToken ct) => + { + var tcs = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + using (ct.Register(() => tcs.TrySetCanceled(ct))) + { + await tcs.Task.ConfigureAwait(false); + } + }); + + var manager = new RequestReplyManager(serializer.Object, pipeline.Object, new BusConfiguration()); + // Long timeout so the caller token wins the race. + var options = new RequestOptions { Timeout = 60_000, EndPoint = "test-endpoint" }; + var headers = new Dictionary(); + + using var callerCts = new CancellationTokenSource(TimeSpan.FromMilliseconds(50)); + + // ThrowsAnyAsync because the runtime surfaces TaskCanceledException (an OCE + // subclass). The discriminator we care about is "not the typed send-cancelled + // exception" — caller-token cancellation must propagate as a vanilla OCE so + // existing handlers keep working. + var ex = await Assert.ThrowsAnyAsync(() => + manager.SendRequestAsync(new FakeMessage1(Guid.NewGuid()), headers, options, callerCts.Token)); + + Assert.IsNotType(ex); + } + + [Fact] + public async Task SendRequestAsync_TimeoutFires_AndSendCompletedFirst_ThrowsRequestTimeout() + { + var serializer = new Mock(); + serializer.SetupSerializeAny([1, 2, 3]); + + var pipeline = new Mock(); + pipeline + .Setup(p => p.ExecuteSendMessagePipelineAsync(It.IsAny(), It.IsAny())) + .Returns(Task.CompletedTask); + + var manager = new RequestReplyManager(serializer.Object, pipeline.Object, new BusConfiguration()); + var options = new RequestOptions { Timeout = 100, EndPoint = "test-endpoint" }; + var headers = new Dictionary(); + + // Send completes immediately; no reply ever arrives, so the timeout path wins + // and the canonical RequestTimeoutException must surface. + await Assert.ThrowsAsync(() => + manager.SendRequestAsync(new FakeMessage1(Guid.NewGuid()), headers, options)); + } + + [Fact] + public async Task SendRequestMultiAsync_SendPipelineCancelled_NotByCallerToken_ThrowsRequestSendCancelled() + { + var serializer = new Mock(); + serializer.SetupSerializeAny([1, 2, 3]); + + var pipeline = new Mock(); + pipeline + .Setup(p => p.ExecuteSendMessagePipelineAsync(It.IsAny(), It.IsAny())) + .Returns(async (SendContext _, CancellationToken ct) => + { + var tcs = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + using (ct.Register(() => tcs.TrySetCanceled(ct))) + { + await tcs.Task.ConfigureAwait(false); + } + }); + + var manager = new RequestReplyManager(serializer.Object, pipeline.Object, new BusConfiguration()); + var options = new RequestOptions + { + Timeout = 200, + EndPoint = "endpoint-a", + ExpectedReplyCount = 2, + }; + var headers = new Dictionary(); + + var sw = Stopwatch.StartNew(); + var ex = await Assert.ThrowsAsync(() => + manager.SendRequestMultiAsync(new FakeMessage1(Guid.NewGuid()), headers, options)); + sw.Stop(); + + Assert.True(sw.ElapsedMilliseconds < FailFastBudgetMs, + $"Expected fail-fast (< {FailFastBudgetMs}ms); got {sw.ElapsedMilliseconds}ms."); + Assert.NotEqual(Guid.Empty, ex.MessageId); + } + + [Fact] + public async Task PublishRequestAsync_SendPipelineCancelled_NotByCallerToken_ThrowsRequestSendCancelled() + { + var serializer = new Mock(); + serializer.SetupSerializeAny([1, 2, 3]); + + var pipeline = new Mock(); + pipeline + .Setup(p => p.ExecutePublishMessagePipelineAsync(It.IsAny(), It.IsAny())) + .Returns(async (SendContext _, CancellationToken ct) => + { + var tcs = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + using (ct.Register(() => tcs.TrySetCanceled(ct))) + { + await tcs.Task.ConfigureAwait(false); + } + }); + + var manager = new RequestReplyManager(serializer.Object, pipeline.Object, new BusConfiguration()); + var options = new RequestOptions { Timeout = 200, ExpectedReplyCount = 1 }; + var headers = new Dictionary(); + + var sw = Stopwatch.StartNew(); + var ex = await Assert.ThrowsAsync(() => + manager.PublishRequestAsync(new FakeMessage1(Guid.NewGuid()), headers, options, _ => { })); + sw.Stop(); + + Assert.True(sw.ElapsedMilliseconds < FailFastBudgetMs, + $"Expected fail-fast (< {FailFastBudgetMs}ms); got {sw.ElapsedMilliseconds}ms."); + Assert.NotEqual(Guid.Empty, ex.MessageId); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/RequestReplyManagerSendRequestMultiUnderDeliveryTests.cs b/src/ServiceConnect.UnitTests/Services/RequestReplyManagerSendRequestMultiUnderDeliveryTests.cs new file mode 100644 index 000000000..f59fe6c00 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/RequestReplyManagerSendRequestMultiUnderDeliveryTests.cs @@ -0,0 +1,229 @@ +using System; +using System.Collections.Generic; +using System.Threading; +using System.Threading.Tasks; +using Moq; +using ServiceConnect.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Exceptions; +using ServiceConnect.Interfaces.Options; +using ServiceConnect.Services; +using ServiceConnect.UnitTests.Fakes; +using ServiceConnect.UnitTests.Fakes.Messages; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +/// +/// Regression-guards for the under-delivery contract on +/// : a positive +/// must throw +/// when fewer replies than requested arrive +/// before the timeout, with the partials surfaced on +/// . The alternative — silently +/// returning a partial list with no signal of under-delivery — would be asymmetric +/// with PublishRequestAsync's callback-driven shape. +/// +public sealed class RequestReplyManagerSendRequestMultiUnderDeliveryTests +{ + private readonly Mock _mockSerializer; + private readonly Mock _mockSendPipeline; + + public RequestReplyManagerSendRequestMultiUnderDeliveryTests() + { + _mockSerializer = new Mock(); + _mockSendPipeline = new Mock(); + } + + [Fact] + public async Task SendRequestMultiAsync_FewerRepliesThanExpected_ThrowsWithPartialReplies() + { + // Caller asks for 3 replies, exactly 1 arrives, timeout fires. The exception + // must surface the single partial via PartialReplies. + var firstReply = new FakeMessage1(Guid.NewGuid()) { Username = "first" }; + var request = new FakeMessage1(Guid.NewGuid()); + var messageBytes = new byte[] { 1, 2, 3 }; + _mockSerializer.SetupSerializeAny(messageBytes); + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))) + .Returns(firstReply); + + RequestReplyManager? manager = null; + string? capturedMessageId = null; + + var options = new RequestOptions { Timeout = 100, ExpectedReplyCount = 3 }; + var headers = new Dictionary(); + + _mockSendPipeline.Setup(pipeline => pipeline.ExecuteSendMessagePipelineAsync( + It.Is(ctx => ctx.EndPoint == null), + It.IsAny())) + .Callback((ctx, _) => + { + capturedMessageId = ctx.Headers["RequestMessageId"]; + Task.Run(() => + { + // Deliver only one of the three expected replies; let the other two + // miss the timeout window. + manager!.ProcessReply(capturedMessageId!, messageBytes, typeof(FakeMessage1)); + }); + }) + .Returns(Task.CompletedTask); + + manager = new RequestReplyManager(_mockSerializer.Object, _mockSendPipeline.Object, new BusConfiguration()); + + var ex = await Assert.ThrowsAsync(() => + manager.SendRequestMultiAsync(request, headers, options)); + + Assert.NotNull(ex.PartialReplies); + Assert.Single(ex.PartialReplies); + Assert.IsType(ex.PartialReplies[0]); + Assert.Equal("first", ((FakeMessage1)ex.PartialReplies[0]).Username); + Assert.Equal(TimeSpan.FromMilliseconds(options.Timeout), ex.Elapsed); + } + + [Fact] + public async Task SendRequestMultiAsync_AllExpectedRepliesArrive_ReturnsListNormally() + { + // Sanity: full delivery still returns the populated list (no exception). Guards + // against the under-delivery branch firing on the success path. + var reply = new FakeMessage1(Guid.NewGuid()) { Username = "ok" }; + var request = new FakeMessage1(Guid.NewGuid()); + var messageBytes = new byte[] { 1, 2, 3 }; + _mockSerializer.SetupSerializeAny(messageBytes); + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))) + .Returns(reply); + + RequestReplyManager? manager = null; + string? capturedMessageId = null; + + var options = new RequestOptions { Timeout = 5_000, ExpectedReplyCount = 2 }; + var headers = new Dictionary(); + + _mockSendPipeline.Setup(pipeline => pipeline.ExecuteSendMessagePipelineAsync( + It.Is(ctx => ctx.EndPoint == null), + It.IsAny())) + .Callback((ctx, _) => + { + capturedMessageId = ctx.Headers["RequestMessageId"]; + Task.Run(() => + { + manager!.ProcessReply(capturedMessageId!, messageBytes, typeof(FakeMessage1)); + manager!.ProcessReply(capturedMessageId!, messageBytes, typeof(FakeMessage1)); + }); + }) + .Returns(Task.CompletedTask); + + manager = new RequestReplyManager(_mockSerializer.Object, _mockSendPipeline.Object, new BusConfiguration()); + + var results = await manager.SendRequestMultiAsync( + request, headers, options); + + Assert.Equal(2, results.Count); + } + + [Fact] + public async Task SendRequestMultiAsync_CallerCancelBeforeTimeout_ThrowsOCE_NotRequestTimeout() + { + // External cancellation must surface as OperationCanceledException, not as the + // new RequestTimeoutException — even when ExpectedReplyCount is positive and + // under-delivered. Mirrors the existing SendRequestAsync_ExternalCancel guard. + var request = new FakeMessage1(Guid.NewGuid()); + var messageBytes = new byte[] { 1, 2, 3 }; + _mockSerializer.SetupSerializeAny(messageBytes); + + using var externalCts = new CancellationTokenSource(); + var options = new RequestOptions { Timeout = 300_000, ExpectedReplyCount = 5 }; + var headers = new Dictionary(); + + _mockSendPipeline.Setup(pipeline => pipeline.ExecuteSendMessagePipelineAsync( + It.Is(ctx => ctx.EndPoint == null), + It.IsAny())) + .Returns(Task.CompletedTask); + + var manager = new RequestReplyManager(_mockSerializer.Object, _mockSendPipeline.Object, new BusConfiguration()); + + var task = manager.SendRequestMultiAsync( + new FakeMessage1(Guid.NewGuid()), headers, options, externalCts.Token); + + externalCts.CancelAfter(50); + + var ex = await Assert.ThrowsAnyAsync(() => task); + Assert.IsNotType(ex); + } + + [Fact] + public async Task SendRequestMultiAsync_NoExpectedReplyCount_ReturnsEmptyOnTimeoutWithoutException() + { + // ExpectedReplyCount unset → "fire and collect whatever shows up" — under-delivery + // does not apply. The call must return cleanly with whatever arrived (nothing, in + // this case) rather than throwing. + var request = new FakeMessage1(Guid.NewGuid()); + var messageBytes = new byte[] { 1, 2, 3 }; + _mockSerializer.SetupSerializeAny(messageBytes); + + var options = new RequestOptions { Timeout = 50 }; // ExpectedReplyCount unset (null) + var headers = new Dictionary(); + + _mockSendPipeline.Setup(pipeline => pipeline.ExecuteSendMessagePipelineAsync( + It.Is(ctx => ctx.EndPoint == null), + It.IsAny())) + .Returns(Task.CompletedTask); + + var manager = new RequestReplyManager(_mockSerializer.Object, _mockSendPipeline.Object, new BusConfiguration()); + + var results = await manager.SendRequestMultiAsync( + request, headers, options); + + Assert.Empty(results); + } + + [Fact] + public async Task SendRequestMultiAsync_ZeroExpectedReplyCount_ReturnsCleanlyWithoutException() + { + // Explicit ExpectedReplyCount = 0 is the documented "no expectation" sentinel. + // Must not trigger the new under-delivery branch. + var request = new FakeMessage1(Guid.NewGuid()); + var messageBytes = new byte[] { 1, 2, 3 }; + _mockSerializer.SetupSerializeAny(messageBytes); + + var options = new RequestOptions { Timeout = 50, ExpectedReplyCount = 0 }; + var headers = new Dictionary(); + + _mockSendPipeline.Setup(pipeline => pipeline.ExecuteSendMessagePipelineAsync( + It.Is(ctx => ctx.EndPoint == null), + It.IsAny())) + .Returns(Task.CompletedTask); + + var manager = new RequestReplyManager(_mockSerializer.Object, _mockSendPipeline.Object, new BusConfiguration()); + + var results = await manager.SendRequestMultiAsync( + request, headers, options); + + Assert.Empty(results); + } + + [Fact] + public async Task SendRequestMultiAsync_PositiveExpected_ZeroRepliesArrive_ThrowsWithEmptyPartials() + { + // Edge case: ExpectedReplyCount > 0 but no replies at all — exception must still + // be raised, with PartialReplies empty (not null). + var request = new FakeMessage1(Guid.NewGuid()); + var messageBytes = new byte[] { 1, 2, 3 }; + _mockSerializer.SetupSerializeAny(messageBytes); + + var options = new RequestOptions { Timeout = 50, ExpectedReplyCount = 2 }; + var headers = new Dictionary(); + + _mockSendPipeline.Setup(pipeline => pipeline.ExecuteSendMessagePipelineAsync( + It.Is(ctx => ctx.EndPoint == null), + It.IsAny())) + .Returns(Task.CompletedTask); + + var manager = new RequestReplyManager(_mockSerializer.Object, _mockSendPipeline.Object, new BusConfiguration()); + + var ex = await Assert.ThrowsAsync(() => + manager.SendRequestMultiAsync(request, headers, options)); + + Assert.NotNull(ex.PartialReplies); + Assert.Empty(ex.PartialReplies); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/RequestReplyManagerTests.cs b/src/ServiceConnect.UnitTests/Services/RequestReplyManagerTests.cs new file mode 100644 index 000000000..37f5f8934 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/RequestReplyManagerTests.cs @@ -0,0 +1,1283 @@ +using System; +using System.Collections.Generic; +using System.Threading; +using System.Threading.Tasks; +using Moq; +using ServiceConnect.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Exceptions; +using ServiceConnect.Interfaces.Options; +using ServiceConnect.Services; +using ServiceConnect.UnitTests.Fakes; +using ServiceConnect.UnitTests.Fakes.Messages; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +public class RequestReplyManagerTests +{ + private readonly Mock _mockSerializer; + private readonly Mock _mockSendPipeline; + + public RequestReplyManagerTests() + { + _mockSerializer = new Mock(); + _mockSendPipeline = new Mock(); + } + + /// + /// Polls every 10 ms for up to , + /// returning when the condition becomes true or the budget is exhausted. + /// + private static async Task WaitForCondition(Func condition, TimeSpan maxWait) + { + var deadline = DateTime.UtcNow + maxWait; + while (!condition() && DateTime.UtcNow < deadline) + { + await Task.Delay(10); + } + } + + [Fact] + public void IRequestReplyManager_ProcessReply_ReturnsVoid() + { + var method = typeof(IRequestReplyManager).GetMethod(nameof(IRequestReplyManager.ProcessReply)); + + Assert.NotNull(method); + Assert.Equal(typeof(void), method!.ReturnType); + } + + [Fact] + public void Constructor_ThrowsWhenSerializerIsNull() + { + Assert.Throws(() => new RequestReplyManager(null!, _mockSendPipeline.Object, new BusConfiguration())); + Assert.Throws(() => new RequestReplyManager(_mockSerializer.Object, null!, new BusConfiguration())); + Assert.Throws(() => new RequestReplyManager(_mockSerializer.Object, _mockSendPipeline.Object, null!)); + } + + [Fact] + public async Task SendRequestAsync_SendsMessageWithRequestMessageIdHeader() + { + // Arrange + var replyId = Guid.NewGuid(); + var reply = new FakeMessage1(replyId) { Username = "TestUser" }; + var request = new FakeMessage1(Guid.NewGuid()) { Username = "Sender" }; + + RequestReplyManager? manager = null; + string? capturedMessageId = null; + + var messageBytes = new byte[] { 1, 2, 3 }; + _mockSerializer.SetupSerializeAny(messageBytes); + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))) + .Returns(reply); + + var options = new RequestOptions { Timeout = 5000 }; + var headers = new Dictionary(); + + _mockSendPipeline.Setup(pipeline => pipeline.ExecuteSendMessagePipelineAsync( + It.Is(ctx => + ctx.MessageType == typeof(FakeMessage1) && + ctx.MessageBytes.ToArray().SequenceEqual(messageBytes) && + ctx.EndPoint == null && + ctx.Operation == SendOperation.Request), + It.IsAny())) + .Callback((ctx, _) => + { + capturedMessageId = ctx.Headers["RequestMessageId"]; + Task.Run(() => + { + manager!.ProcessReply(capturedMessageId!, messageBytes, typeof(FakeMessage1)); + }); + }) + .Returns(Task.CompletedTask); + + manager = new RequestReplyManager(_mockSerializer.Object, _mockSendPipeline.Object, new BusConfiguration()); + + // Act + var result = await manager.SendRequestAsync( + request, headers, options); + + // Assert + Assert.NotNull(capturedMessageId); + Assert.Equal(reply.Username, result.Username); + } + + [Fact] + public async Task SendRequestAsync_ThrowsRequestTimeoutException_WhenNoReply() + { + // Arrange + var options = new RequestOptions { Timeout = 100 }; + var headers = new Dictionary(); + var request = new FakeMessage1(Guid.NewGuid()); + var messageBytes = new byte[] { 1, 2, 3 }; + _mockSerializer.SetupSerializeAny(messageBytes); + + _mockSendPipeline.Setup(pipeline => pipeline.ExecuteSendMessagePipelineAsync( + It.Is(ctx => + ctx.MessageType == typeof(FakeMessage1) && + ctx.MessageBytes.ToArray().SequenceEqual(messageBytes) && + ctx.EndPoint == null && + ctx.Operation == SendOperation.Request), + It.IsAny())) + .Returns(Task.CompletedTask); + + var manager = new RequestReplyManager(_mockSerializer.Object, _mockSendPipeline.Object, new BusConfiguration()); + + // Act & Assert + await Assert.ThrowsAsync(() => + manager.SendRequestAsync( + request, headers, options)); + } + + [Fact] + public async Task SendRequestAsync_SendsToEndPoint_WhenSpecified() + { + // Arrange + var replyId = Guid.NewGuid(); + var reply = new FakeMessage1(replyId) { Username = "EndpointUser" }; + var request = new FakeMessage1(Guid.NewGuid()); + + RequestReplyManager? manager = null; + string? capturedEndpoint = null; + string? capturedMessageId = null; + + var messageBytes = new byte[] { 1, 2, 3 }; + _mockSerializer.SetupSerializeAny(messageBytes); + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))) + .Returns(reply); + + var options = new RequestOptions { Timeout = 5000, EndPoint = "my-queue" }; + var headers = new Dictionary(); + + _mockSendPipeline.Setup(pipeline => pipeline.ExecuteSendMessagePipelineAsync( + It.Is(ctx => + ctx.MessageType == typeof(FakeMessage1) && + ctx.EndPoint == "my-queue" && + ctx.Operation == SendOperation.Request), + It.IsAny())) + .Callback((ctx, _) => + { + capturedEndpoint = ctx.EndPoint; + capturedMessageId = ctx.Headers["RequestMessageId"]; + Task.Run(() => + { + manager!.ProcessReply(capturedMessageId!, messageBytes, typeof(FakeMessage1)); + }); + }) + .Returns(Task.CompletedTask); + + manager = new RequestReplyManager(_mockSerializer.Object, _mockSendPipeline.Object, new BusConfiguration()); + + // Act + await manager.SendRequestAsync( + request, headers, options); + + // Assert + Assert.Equal("my-queue", capturedEndpoint); + } + + [Fact] + public async Task SendRequestAsync_RemovesPendingRequest_WhenSendPipelineThrows() + { + var pipelineException = new InvalidOperationException("send failed"); + var headers = new Dictionary(); + var request = new FakeMessage1(Guid.NewGuid()); + var messageBytes = new byte[] { 1, 2, 3 }; + _mockSerializer.SetupSerializeAny(messageBytes); + var options = new RequestOptions { Timeout = 5000 }; + string? capturedMessageId = null; + + _mockSendPipeline.Setup(pipeline => pipeline.ExecuteSendMessagePipelineAsync( + It.Is(ctx => ctx.EndPoint == null), + It.IsAny())) + .Callback((ctx, _) => + { + capturedMessageId = ctx.Headers["RequestMessageId"]; + }) + .ThrowsAsync(pipelineException); + + var manager = new RequestReplyManager(_mockSerializer.Object, _mockSendPipeline.Object, new BusConfiguration()); + + var ex = await Assert.ThrowsAsync(() => + manager.SendRequestAsync(request, headers, options)); + + Assert.Same(pipelineException, ex); + Assert.NotNull(capturedMessageId); + + manager.ProcessReply(capturedMessageId!, messageBytes, typeof(FakeMessage1)); + + _mockSerializer.Verify(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1)), Times.Never); + } + + [Fact] + public void ProcessReply_ReturnsFalse_WhenMessageIdIsUnknown() + { + var manager = (IReplyStatusRequestReplyManager)new RequestReplyManager(_mockSerializer.Object, _mockSendPipeline.Object, new BusConfiguration()); + + var handled = manager.TryProcessReply(Guid.NewGuid().ToString(), new byte[] { 1, 2, 3 }, typeof(FakeMessage1)); + + Assert.False(handled); + _mockSerializer.Verify(s => s.Deserialize(It.IsAny>(), It.IsAny()), Times.Never); + } + + [Fact] + public async Task SendRequestMultiAsync_CollectsMultipleReplies() + { + // Arrange + var reply1 = new FakeMessage1(Guid.NewGuid()) { Username = "User1" }; + var reply2 = new FakeMessage1(Guid.NewGuid()) { Username = "User2" }; + var request = new FakeMessage1(Guid.NewGuid()); + var messageBytes = new byte[] { 1, 2, 3 }; + _mockSerializer.SetupSerializeAny(messageBytes); + + var callCount = 0; + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))) + .Returns(() => ++callCount == 1 ? reply1 : reply2); + + RequestReplyManager? manager = null; + string? capturedMessageId = null; + + var options = new RequestOptions { Timeout = 5000, ExpectedReplyCount = 2 }; + var headers = new Dictionary(); + + _mockSendPipeline.Setup(pipeline => pipeline.ExecuteSendMessagePipelineAsync( + It.Is(ctx => ctx.EndPoint == null), + It.IsAny())) + .Callback((ctx, _) => + { + capturedMessageId = ctx.Headers["RequestMessageId"]; + Task.Run(() => + { + manager!.ProcessReply(capturedMessageId!, messageBytes, typeof(FakeMessage1)); + manager!.ProcessReply(capturedMessageId!, messageBytes, typeof(FakeMessage1)); + }); + }) + .Returns(Task.CompletedTask); + + manager = new RequestReplyManager(_mockSerializer.Object, _mockSendPipeline.Object, new BusConfiguration()); + + // Act + var results = await manager.SendRequestMultiAsync( + request, headers, options); + + // Assert + Assert.Equal(2, results.Count); + } + + [Fact] + public async Task SendRequestMultiAsync_IgnoresRepliesBeyondExpectedReplyCount() + { + var firstReply = new FakeMessage1(Guid.NewGuid()) { Username = "User1" }; + var secondReply = new FakeMessage1(Guid.NewGuid()) { Username = "User2" }; + var thirdReply = new FakeMessage1(Guid.NewGuid()) { Username = "User3" }; + var request = new FakeMessage1(Guid.NewGuid()); + var messageBytes = new byte[] { 1, 2, 3 }; + _mockSerializer.SetupSerializeAny(messageBytes); + + var deserializedReplies = new Queue([firstReply, secondReply, thirdReply]); + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))) + .Returns(deserializedReplies.Dequeue); + + RequestReplyManager? manager = null; + string? capturedMessageId = null; + + var options = new RequestOptions { Timeout = 5000, ExpectedReplyCount = 2 }; + var headers = new Dictionary(); + + _mockSendPipeline.Setup(pipeline => pipeline.ExecuteSendMessagePipelineAsync( + It.Is(ctx => ctx.EndPoint == null), + It.IsAny())) + .Callback((ctx, _) => + { + capturedMessageId = ctx.Headers["RequestMessageId"]; + Task.Run(() => + { + manager!.ProcessReply(capturedMessageId!, messageBytes, typeof(FakeMessage1)); + manager.ProcessReply(capturedMessageId!, messageBytes, typeof(FakeMessage1)); + manager.ProcessReply(capturedMessageId!, messageBytes, typeof(FakeMessage1)); + }); + }) + .Returns(Task.CompletedTask); + + manager = new RequestReplyManager(_mockSerializer.Object, _mockSendPipeline.Object, new BusConfiguration()); + + var results = await manager.SendRequestMultiAsync(request, headers, options); + + Assert.Equal(2, results.Count); + Assert.Collection(results, + reply => Assert.Equal("User1", reply.Username), + reply => Assert.Equal("User2", reply.Username)); + _mockSerializer.Verify(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1)), Times.Exactly(2)); + } + + [Fact] + public async Task SendRequestMultiAsync_SendsToEndPoint_WhenSingleEndPointSpecified() + { + // Arrange + var reply = new FakeMessage1(Guid.NewGuid()) { Username = "EndpointUser" }; + var request = new FakeMessage1(Guid.NewGuid()); + var messageBytes = new byte[] { 1, 2, 3 }; + _mockSerializer.SetupSerializeAny(messageBytes); + + RequestReplyManager? manager = null; + string? capturedEndpoint = null; + string? capturedMessageId = null; + + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))) + .Returns(reply); + + var options = new RequestOptions { Timeout = 5000, EndPoint = "single-queue", ExpectedReplyCount = 1 }; + var headers = new Dictionary(); + + _mockSendPipeline.Setup(pipeline => pipeline.ExecuteSendMessagePipelineAsync( + It.Is(ctx => ctx.EndPoint == "single-queue"), + It.IsAny())) + .Callback((ctx, _) => + { + capturedEndpoint = ctx.EndPoint; + capturedMessageId = ctx.Headers["RequestMessageId"]; + Task.Run(() => + { + manager!.ProcessReply(capturedMessageId!, messageBytes, typeof(FakeMessage1)); + }); + }) + .Returns(Task.CompletedTask); + + manager = new RequestReplyManager(_mockSerializer.Object, _mockSendPipeline.Object, new BusConfiguration()); + + // Act + var results = await manager.SendRequestMultiAsync( + request, headers, options); + + // Assert + Assert.Equal("single-queue", capturedEndpoint); + Assert.Single(results); + Assert.Equal(reply.Username, results[0].Username); + } + + [Fact] + public async Task SendRequestMultiAsync_UsesEndPoint_WhenSet() + { + var reply = new FakeMessage1(Guid.NewGuid()) { Username = "EndpointUser" }; + var request = new FakeMessage1(Guid.NewGuid()); + var messageBytes = new byte[] { 1, 2, 3 }; + _mockSerializer.SetupSerializeAny(messageBytes); + + RequestReplyManager? manager = null; + string? capturedEndpoint = null; + string? capturedMessageId = null; + + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))) + .Returns(reply); + + var options = new RequestOptions + { + Timeout = 5000, + EndPoint = "target-queue", + ExpectedReplyCount = 1, + }; + var headers = new Dictionary(); + + _mockSendPipeline.Setup(pipeline => pipeline.ExecuteSendMessagePipelineAsync( + It.Is(ctx => ctx.EndPoint == "target-queue"), + It.IsAny())) + .Callback((ctx, _) => + { + capturedEndpoint = ctx.EndPoint; + capturedMessageId = ctx.Headers["RequestMessageId"]; + Task.Run(() => + { + manager!.ProcessReply(capturedMessageId!, messageBytes, typeof(FakeMessage1)); + }); + }) + .Returns(Task.CompletedTask); + + manager = new RequestReplyManager(_mockSerializer.Object, _mockSendPipeline.Object, new BusConfiguration()); + + var results = await manager.SendRequestMultiAsync( + request, + headers, + options); + + Assert.Equal("target-queue", capturedEndpoint); + Assert.Single(results); + Assert.Equal(reply.Username, results[0].Username); + } + + [Fact] + public async Task SendRequestMultiAsync_RemovesPendingRequest_WhenSendPipelineThrows() + { + var pipelineException = new InvalidOperationException("send failed"); + var headers = new Dictionary(); + var request = new FakeMessage1(Guid.NewGuid()); + var messageBytes = new byte[] { 1, 2, 3 }; + _mockSerializer.SetupSerializeAny(messageBytes); + var options = new RequestOptions { Timeout = 5000 }; + string? capturedMessageId = null; + + _mockSendPipeline.Setup(pipeline => pipeline.ExecuteSendMessagePipelineAsync( + It.Is(ctx => ctx.EndPoint == null), + It.IsAny())) + .Callback((ctx, _) => + { + capturedMessageId = ctx.Headers["RequestMessageId"]; + }) + .ThrowsAsync(pipelineException); + + var manager = new RequestReplyManager(_mockSerializer.Object, _mockSendPipeline.Object, new BusConfiguration()); + + var ex = await Assert.ThrowsAsync(() => + manager.SendRequestMultiAsync(request, headers, options)); + + Assert.Same(pipelineException, ex); + Assert.NotNull(capturedMessageId); + + manager.ProcessReply(capturedMessageId!, messageBytes, typeof(FakeMessage1)); + + _mockSerializer.Verify(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1)), Times.Never); + } + + [Fact] + public async Task PublishRequestAsync_UsesPublishPipeline_AndInvokesCallbackBeforeCompletion() + { + // Arrange + var reply = new FakeMessage1(Guid.NewGuid()) { Username = "PublishReply" }; + var request = new FakeMessage1(Guid.NewGuid()); + var messageBytes = new byte[] { 1, 2, 3 }; + _mockSerializer.SetupSerializeAny(messageBytes); + RequestReplyManager? manager = null; + string? capturedMessageId = null; + var callbackInvoked = false; + + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))) + .Returns(reply); + + var options = new RequestOptions { Timeout = 5000, ExpectedReplyCount = 1 }; + var headers = new Dictionary(); + + _mockSendPipeline.Setup(pipeline => pipeline.ExecutePublishMessagePipelineAsync( + It.Is(ctx => + ctx.MessageType == typeof(FakeMessage1) && + ctx.EndPoint == null && + ctx.Operation == SendOperation.Request), + It.IsAny())) + .Callback((ctx, _) => + { + capturedMessageId = ctx.Headers["RequestMessageId"]; + Task.Run(() => + { + manager!.ProcessReply(capturedMessageId!, messageBytes, typeof(FakeMessage1)); + }); + }) + .Returns(Task.CompletedTask); + + manager = new RequestReplyManager(_mockSerializer.Object, _mockSendPipeline.Object, new BusConfiguration()); + + // Act + Task? publishTask = null; + publishTask = manager.PublishRequestAsync( + request, + headers, + options, + response => + { + callbackInvoked = true; + Assert.Equal(reply.Username, response.Username); + Assert.False(publishTask?.IsCompleted ?? false); + }); + + await publishTask; + + // Assert + Assert.True(callbackInvoked); + _mockSendPipeline.Verify(pipeline => pipeline.ExecutePublishMessagePipelineAsync( + It.Is(ctx => + ctx.MessageType == typeof(FakeMessage1) && + ctx.EndPoint == null && + ctx.Operation == SendOperation.Request), + It.IsAny()), + Times.Once); + _mockSendPipeline.Verify(pipeline => pipeline.ExecuteSendMessagePipelineAsync( + It.IsAny(), + It.IsAny()), + Times.Never); + } + + [Fact] + public async Task PublishRequestAsync_AdmittedReplyAcrossTimeout_WaitsForReplyBeforeCompleting() + { + var reply = new FakeMessage1(Guid.NewGuid()) { Username = "PublishReply" }; + var request = new FakeMessage1(Guid.NewGuid()); + var messageBytes = new byte[] { 1, 2, 3 }; + _mockSerializer.SetupSerializeAny(messageBytes); + var deserializeStarted = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var releaseDeserialize = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + RequestReplyManager? manager = null; + string? capturedMessageId = null; + var callbackInvoked = false; + Task? publishTask = null; + + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))) + .Returns(() => + { + deserializeStarted.TrySetResult(null); + releaseDeserialize.Task.GetAwaiter().GetResult(); + return reply; + }); + + var options = new RequestOptions { Timeout = 50, ExpectedReplyCount = 1 }; + var headers = new Dictionary(); + + _mockSendPipeline.Setup(pipeline => pipeline.ExecutePublishMessagePipelineAsync( + It.Is(ctx => ctx.EndPoint == null), + It.IsAny())) + .Callback((ctx, _) => + { + capturedMessageId = ctx.Headers["RequestMessageId"]; + Task.Run(() => manager!.ProcessReply(capturedMessageId!, messageBytes, typeof(FakeMessage1))); + }) + .Returns(Task.CompletedTask); + + manager = new RequestReplyManager(_mockSerializer.Object, _mockSendPipeline.Object, new BusConfiguration()); + + publishTask = manager.PublishRequestAsync( + request, + headers, + options, + response => + { + callbackInvoked = true; + Assert.Equal(reply.Username, response.Username); + Assert.False(publishTask!.IsCompleted); + }); + + await deserializeStarted.Task.WaitAsync(TimeSpan.FromSeconds(1)); + await Task.Delay(options.Timeout + 100); + + Assert.False(publishTask.IsCompleted); + + releaseDeserialize.TrySetResult(null); + + await publishTask; + + Assert.True(callbackInvoked); + } + + [Fact] + public async Task PublishRequestAsync_AdmittedReplyFailureAfterTimeout_FaultsWithReplyFailure() + { + var deserializeStarted = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var releaseDeserialize = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var deserializeException = new InvalidOperationException("deserialize failed after timeout"); + var request = new FakeMessage1(Guid.NewGuid()); + var messageBytes = new byte[] { 1, 2, 3 }; + _mockSerializer.SetupSerializeAny(messageBytes); + RequestReplyManager? manager = null; + string? capturedMessageId = null; + + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))) + .Returns(() => + { + deserializeStarted.TrySetResult(null); + releaseDeserialize.Task.GetAwaiter().GetResult(); + throw deserializeException; + }); + + var options = new RequestOptions { Timeout = 50, ExpectedReplyCount = 1 }; + var headers = new Dictionary(); + + _mockSendPipeline.Setup(pipeline => pipeline.ExecutePublishMessagePipelineAsync( + It.Is(ctx => ctx.EndPoint == null), + It.IsAny())) + .Callback((ctx, _) => + { + capturedMessageId = ctx.Headers["RequestMessageId"]; + Task.Run(() => + { + try + { + manager!.ProcessReply(capturedMessageId!, messageBytes, typeof(FakeMessage1)); + } + catch + { + } + }); + }) + .Returns(Task.CompletedTask); + + manager = new RequestReplyManager(_mockSerializer.Object, _mockSendPipeline.Object, new BusConfiguration()); + + var publishTask = manager.PublishRequestAsync( + request, + headers, + options, + _ => Assert.Fail("Callback should not run when deserialize fails.")); + + await deserializeStarted.Task.WaitAsync(TimeSpan.FromSeconds(1)); + await Task.Delay(options.Timeout + 100); + + Assert.False(publishTask.IsCompleted); + + releaseDeserialize.TrySetResult(null); + + var ex = await Assert.ThrowsAsync(() => publishTask); + Assert.Same(deserializeException, ex); + } + + [Fact] + public async Task PublishRequestAsync_ReplyArrivingAfterTimeoutClose_IsIgnored() + { + // Under the single-lock state machine the timeout's Close action and the reply + // path both contend for RequestState._stateLock. A reply that lands AFTER Close + // has acquired the lock and flipped the state to closed is rejected (no + // deserialize, no callback). A reply that landed earlier and is mid-lifecycle + // completes — a slow Deserialize is not interrupted by the timeout. Interrupting + // a partially-mutated state across the lock boundary is unsafe, so the design + // requires that any in-flight reply observe a stable terminal state. + var firstReply = new FakeMessage1(Guid.NewGuid()) { Username = "Reply1" }; + var request = new FakeMessage1(Guid.NewGuid()); + var messageBytes = new byte[] { 1, 2, 3 }; + _mockSerializer.SetupSerializeAny(messageBytes); + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))) + .Returns(firstReply); + + RequestReplyManager? manager = null; + string? capturedMessageId = null; + var callbacks = new List(); + + var options = new RequestOptions { Timeout = 25 }; + var headers = new Dictionary(); + + _mockSendPipeline.Setup(pipeline => pipeline.ExecutePublishMessagePipelineAsync( + It.Is(ctx => ctx.EndPoint == null), + It.IsAny())) + .Callback((ctx, _) => + { + capturedMessageId = ctx.Headers["RequestMessageId"]; + }) + .Returns(Task.CompletedTask); + + manager = new RequestReplyManager(_mockSerializer.Object, _mockSendPipeline.Object, new BusConfiguration()); + + var publishTask = manager.PublishRequestAsync( + request, + headers, + options, + reply => callbacks.Add(reply.Username)); + + // Wait for the timeout to fire and for the publish task to fully complete. + // Once publishTask returns, the state has been Close'd and removed from the + // pending-requests map. + await publishTask; + Assert.NotNull(capturedMessageId); + + // A reply arriving after Close must be rejected: the manager removed the state + // from _pendingRequests, so TryProcessReply returns false before any callback + // can run, and Deserialize is never invoked. + var lateAccepted = manager.TryProcessReply(capturedMessageId!, messageBytes, typeof(FakeMessage1)); + + Assert.False(lateAccepted); + Assert.Empty(callbacks); + _mockSerializer.Verify(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1)), Times.Never); + } + + [Fact] + public async Task PublishRequestAsync_NullExpectedCount_NoReplies_CompletesAtTimeoutWithoutException() + { + // RequestOptions has no EndPoints property; ExpectedReplyCount has no implicit + // fallback. With null/zero/negative ExpectedReplyCount, PublishRequestAsync must + // wait the full Timeout and complete successfully — even when zero replies arrive — + // rather than throwing RequestTimeoutException. This path is the silent-success + // branch in the timeout handler: the call is a "fire + // and collect whatever shows up" pattern, common for broadcast scatter-gather. + var request = new FakeMessage1(Guid.NewGuid()); + var messageBytes = new byte[] { 1, 2, 3 }; + _mockSerializer.SetupSerializeAny(messageBytes); + + var options = new RequestOptions { Timeout = 25 }; + var headers = new Dictionary(); + + _mockSendPipeline.Setup(pipeline => pipeline.ExecutePublishMessagePipelineAsync( + It.Is(ctx => ctx.EndPoint == null), + It.IsAny())) + .Returns(Task.CompletedTask); + + var manager = new RequestReplyManager(_mockSerializer.Object, _mockSendPipeline.Object, new BusConfiguration()); + + var publishTask = manager.PublishRequestAsync( + request, + headers, + options, + _ => Assert.Fail("Callback should not run when no replies arrive.")); + + // Should complete cleanly at timeout — no exception. + await publishTask; + Assert.True(publishTask.IsCompletedSuccessfully); + } + + [Fact] + public async Task PublishRequestAsync_CallbackException_FaultsPromptly() + { + var reply = new FakeMessage1(Guid.NewGuid()) { Username = "PublishReply" }; + var request = new FakeMessage1(Guid.NewGuid()); + var messageBytes = new byte[] { 1, 2, 3 }; + _mockSerializer.SetupSerializeAny(messageBytes); + RequestReplyManager? manager = null; + string? capturedMessageId = null; + var callbackException = new InvalidOperationException("callback failed"); + + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))) + .Returns(reply); + + var options = new RequestOptions { Timeout = 5000, ExpectedReplyCount = 1 }; + var headers = new Dictionary(); + + _mockSendPipeline.Setup(pipeline => pipeline.ExecutePublishMessagePipelineAsync( + It.Is(ctx => ctx.EndPoint == null), + It.IsAny())) + .Callback((ctx, _) => + { + capturedMessageId = ctx.Headers["RequestMessageId"]; + Task.Run(() => + { + try + { + manager!.ProcessReply(capturedMessageId!, messageBytes, typeof(FakeMessage1)); + } + catch + { + // Keep the test focused on the task returned to the publisher. + } + }); + }) + .Returns(Task.CompletedTask); + + manager = new RequestReplyManager(_mockSerializer.Object, _mockSendPipeline.Object, new BusConfiguration()); + + var publishTask = manager.PublishRequestAsync( + request, + headers, + options, + _ => throw callbackException); + + var completedTask = await Task.WhenAny(publishTask, Task.Delay(500)); + + Assert.Same(publishTask, completedTask); + var ex = await Assert.ThrowsAsync(() => publishTask); + Assert.Same(callbackException, ex); + } + + [Fact] + public async Task SendRequestAsync_DeserializeException_FaultsPromptly() + { + RequestReplyManager? manager = null; + string? capturedMessageId = null; + var deserializeException = new InvalidOperationException("deserialize failed"); + var options = new RequestOptions { Timeout = 5000 }; + var headers = new Dictionary(); + var request = new FakeMessage1(Guid.NewGuid()); + var messageBytes = new byte[] { 1, 2, 3 }; + _mockSerializer.SetupSerializeAny(messageBytes); + + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))) + .Throws(deserializeException); + + _mockSendPipeline.Setup(pipeline => pipeline.ExecuteSendMessagePipelineAsync( + It.Is(ctx => ctx.EndPoint == null), + It.IsAny())) + .Callback((ctx, _) => + { + capturedMessageId = ctx.Headers["RequestMessageId"]; + Task.Run(() => + { + try + { + manager!.ProcessReply(capturedMessageId!, messageBytes, typeof(FakeMessage1)); + } + catch + { + } + }); + }) + .Returns(Task.CompletedTask); + + manager = new RequestReplyManager(_mockSerializer.Object, _mockSendPipeline.Object, new BusConfiguration()); + + var requestTask = manager.SendRequestAsync(request, headers, options); + var completedTask = await Task.WhenAny(requestTask, Task.Delay(500)); + + Assert.Same(requestTask, completedTask); + var ex = await Assert.ThrowsAsync(() => requestTask); + Assert.Same(deserializeException, ex); + } + + [Fact] + public async Task PublishRequestAsync_DeserializeException_FaultsPromptly_AndStopsLaterReplies() + { + RequestReplyManager? manager = null; + string? capturedMessageId = null; + var deserializeException = new InvalidOperationException("deserialize failed"); + var callbackCount = 0; + var options = new RequestOptions { Timeout = 5000, ExpectedReplyCount = 2 }; + var headers = new Dictionary(); + var request = new FakeMessage1(Guid.NewGuid()); + var messageBytes = new byte[] { 1, 2, 3 }; + _mockSerializer.SetupSerializeAny(messageBytes); + + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))) + .Throws(deserializeException); + + _mockSendPipeline.Setup(pipeline => pipeline.ExecutePublishMessagePipelineAsync( + It.Is(ctx => ctx.EndPoint == null), + It.IsAny())) + .Callback((ctx, _) => + { + capturedMessageId = ctx.Headers["RequestMessageId"]; + Task.Run(async () => + { + try + { + manager!.ProcessReply(capturedMessageId!, messageBytes, typeof(FakeMessage1)); + } + catch + { + } + + await Task.Delay(50); + + try + { + manager!.ProcessReply(capturedMessageId!, messageBytes, typeof(FakeMessage1)); + } + catch + { + } + }); + }) + .Returns(Task.CompletedTask); + + manager = new RequestReplyManager(_mockSerializer.Object, _mockSendPipeline.Object, new BusConfiguration()); + + var publishTask = manager.PublishRequestAsync( + request, + headers, + options, + _ => callbackCount++); + + var completedTask = await Task.WhenAny(publishTask, Task.Delay(500)); + + Assert.Same(publishTask, completedTask); + var ex = await Assert.ThrowsAsync(() => publishTask); + Assert.Same(deserializeException, ex); + + // Give the background Task.Run time to attempt a second reply, then assert it was suppressed. + await WaitForCondition(() => false, TimeSpan.FromMilliseconds(200)); + + Assert.Equal(0, callbackCount); + _mockSerializer.Verify(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1)), Times.Once); + } + + [Fact] + public async Task PublishRequestAsync_CallbackException_OnNonFinalReply_StopsLaterReplies() + { + var firstReply = new FakeMessage1(Guid.NewGuid()) { Username = "Reply1" }; + var secondReply = new FakeMessage1(Guid.NewGuid()) { Username = "Reply2" }; + var request = new FakeMessage1(Guid.NewGuid()); + var messageBytes = new byte[] { 1, 2, 3 }; + _mockSerializer.SetupSerializeAny(messageBytes); + + var deserializedReplies = new Queue([firstReply, secondReply]); + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))) + .Returns(deserializedReplies.Dequeue); + + RequestReplyManager? manager = null; + string? capturedMessageId = null; + var callbackCount = 0; + var callbackException = new InvalidOperationException("callback failed"); + var options = new RequestOptions { Timeout = 5000, ExpectedReplyCount = 2 }; + var headers = new Dictionary(); + + _mockSendPipeline.Setup(pipeline => pipeline.ExecutePublishMessagePipelineAsync( + It.Is(ctx => ctx.EndPoint == null), + It.IsAny())) + .Callback((ctx, _) => + { + capturedMessageId = ctx.Headers["RequestMessageId"]; + Task.Run(() => + { + try + { + manager!.ProcessReply(capturedMessageId!, messageBytes, typeof(FakeMessage1)); + } + catch + { + } + + try + { + manager!.ProcessReply(capturedMessageId!, messageBytes, typeof(FakeMessage1)); + } + catch + { + } + }); + }) + .Returns(Task.CompletedTask); + + manager = new RequestReplyManager(_mockSerializer.Object, _mockSendPipeline.Object, new BusConfiguration()); + + var publishTask = manager.PublishRequestAsync( + request, + headers, + options, + _ => + { + callbackCount++; + throw callbackException; + }); + + var completedTask = await Task.WhenAny(publishTask, Task.Delay(500)); + + Assert.Same(publishTask, completedTask); + var ex = await Assert.ThrowsAsync(() => publishTask); + Assert.Same(callbackException, ex); + + // Give the background Task.Run time to attempt a second reply, then assert it was suppressed. + await WaitForCondition(() => false, TimeSpan.FromMilliseconds(200)); + + Assert.Equal(1, callbackCount); + _mockSerializer.Verify(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1)), Times.Once); + } + + [Fact] + public async Task PublishRequestAsync_IgnoresRepliesBeyondExpectedReplyCount() + { + var firstReply = new FakeMessage1(Guid.NewGuid()) { Username = "Reply1" }; + var secondReply = new FakeMessage1(Guid.NewGuid()) { Username = "Reply2" }; + var thirdReply = new FakeMessage1(Guid.NewGuid()) { Username = "Reply3" }; + var request = new FakeMessage1(Guid.NewGuid()); + var messageBytes = new byte[] { 1, 2, 3 }; + _mockSerializer.SetupSerializeAny(messageBytes); + + var deserializedReplies = new Queue([firstReply, secondReply, thirdReply]); + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))) + .Returns(deserializedReplies.Dequeue); + + RequestReplyManager? manager = null; + string? capturedMessageId = null; + var callbacks = new List(); + + var options = new RequestOptions { Timeout = 5000, ExpectedReplyCount = 2 }; + var headers = new Dictionary(); + + _mockSendPipeline.Setup(pipeline => pipeline.ExecutePublishMessagePipelineAsync( + It.Is(ctx => ctx.EndPoint == null), + It.IsAny())) + .Callback((ctx, _) => + { + capturedMessageId = ctx.Headers["RequestMessageId"]; + Task.Run(() => + { + manager!.ProcessReply(capturedMessageId!, messageBytes, typeof(FakeMessage1)); + manager.ProcessReply(capturedMessageId!, messageBytes, typeof(FakeMessage1)); + manager.ProcessReply(capturedMessageId!, messageBytes, typeof(FakeMessage1)); + }); + }) + .Returns(Task.CompletedTask); + + manager = new RequestReplyManager(_mockSerializer.Object, _mockSendPipeline.Object, new BusConfiguration()); + + var publishTask = manager.PublishRequestAsync( + request, + headers, + options, + reply => callbacks.Add(reply.Username)); + + await publishTask; + + Assert.Equal(["Reply1", "Reply2"], callbacks); + _mockSerializer.Verify(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1)), Times.Exactly(2)); + } + + [Fact] + public async Task PublishRequestAsync_RemovesPendingRequest_WhenPublishPipelineThrows() + { + var pipelineException = new InvalidOperationException("publish failed"); + var headers = new Dictionary(); + var request = new FakeMessage1(Guid.NewGuid()); + var messageBytes = new byte[] { 1, 2, 3 }; + _mockSerializer.SetupSerializeAny(messageBytes); + var options = new RequestOptions { Timeout = 5000, ExpectedReplyCount = 1 }; + string? capturedMessageId = null; + + _mockSendPipeline.Setup(pipeline => pipeline.ExecutePublishMessagePipelineAsync( + It.Is(ctx => ctx.EndPoint == null), + It.IsAny())) + .Callback((ctx, _) => + { + capturedMessageId = ctx.Headers["RequestMessageId"]; + }) + .ThrowsAsync(pipelineException); + + var manager = new RequestReplyManager(_mockSerializer.Object, _mockSendPipeline.Object, new BusConfiguration()); + + var ex = await Assert.ThrowsAsync(() => + manager.PublishRequestAsync( + request, + headers, + options, + _ => { })); + + Assert.Same(pipelineException, ex); + Assert.NotNull(capturedMessageId); + + manager.ProcessReply(capturedMessageId!, messageBytes, typeof(FakeMessage1)); + + _mockSerializer.Verify(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1)), Times.Never); + } + + [Fact] + public async Task PublishRequestAsync_ThrowsRequestSendCancelled_WhenOutboundPublishStallsBeforeCompletion() + { + var observedCancellation = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var callbackCount = 0; + var request = new FakeMessage1(Guid.NewGuid()); + _mockSerializer.SetupSerializeAny([1, 2, 3]); + + _mockSendPipeline.Setup(pipeline => pipeline.ExecutePublishMessagePipelineAsync( + It.Is(ctx => ctx.EndPoint == null), + It.IsAny())) + .Returns(async (_, token) => + { + observedCancellation.TrySetResult(token); + await Task.Delay(Timeout.InfiniteTimeSpan, token); + }); + + var manager = new RequestReplyManager(_mockSerializer.Object, _mockSendPipeline.Object, new BusConfiguration()); + var options = new RequestOptions { Timeout = 100 }; + + var publishTask = manager.PublishRequestAsync( + request, + new Dictionary(), + options, + _ => callbackCount++); + + var pipelineToken = await observedCancellation.Task; + var completedTask = await Task.WhenAny(publishTask, Task.Delay(1000)); + + Assert.Same(publishTask, completedTask); + Assert.True(pipelineToken.CanBeCanceled); + Assert.True(pipelineToken.IsCancellationRequested); + Assert.Equal(0, callbackCount); + // Stalled-send-then-timeout now fails fast with the typed cancellation exception + // rather than waiting on the reply TCS to surface RequestTimeoutException. + await Assert.ThrowsAsync(() => publishTask); + } + + [Fact] + public async Task SendRequestAsync_ThrowsRequestSendCancelled_WhenOutboundSendIsStalled() + { + var observedCancellation = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var request = new FakeMessage1(Guid.NewGuid()); + _mockSerializer.SetupSerializeAny([1, 2, 3]); + + _mockSendPipeline.Setup(pipeline => pipeline.ExecuteSendMessagePipelineAsync( + It.Is(ctx => ctx.EndPoint == null), + It.IsAny())) + .Returns(async (_, token) => + { + observedCancellation.TrySetResult(token); + await Task.Delay(Timeout.InfiniteTimeSpan, token); + }); + + var manager = new RequestReplyManager(_mockSerializer.Object, _mockSendPipeline.Object, new BusConfiguration()); + var options = new RequestOptions { Timeout = 100 }; + + var requestTask = manager.SendRequestAsync( + request, + new Dictionary(), + options); + + var pipelineToken = await observedCancellation.Task; + var completedTask = await Task.WhenAny(requestTask, Task.Delay(1000)); + + Assert.Same(requestTask, completedTask); + Assert.True(pipelineToken.CanBeCanceled); + Assert.True(pipelineToken.IsCancellationRequested); + // The send pipeline never finished before the linked CTS fired, so the typed + // send-cancelled exception must surface instead of the reply-side timeout. + await Assert.ThrowsAsync(() => requestTask); + } + + // --- CancellationToken tests --- + + [Fact] + public async Task SendRequestAsync_ExternalCancel_ThrowsOCE_NotRequestTimeoutException() + { + var rrm = new RequestReplyManager(Mock.Of(), Mock.Of(), new BusConfiguration()); + using var externalCts = new CancellationTokenSource(); + var options = new RequestOptions { Timeout = 300000 }; // 5 minutes ms + + var task = rrm.SendRequestAsync( + new FakeMessage1(Guid.NewGuid()), new Dictionary(), options, + externalCts.Token); + + externalCts.CancelAfter(50); + + await Assert.ThrowsAnyAsync(() => task); + } + + [Fact] + public async Task SendRequestAsync_Timeout_ThrowsRequestTimeoutException() + { + var rrm = new RequestReplyManager(Mock.Of(), Mock.Of(), new BusConfiguration()); + var options = new RequestOptions { Timeout = 50 }; // 50 ms + + var task = rrm.SendRequestAsync( + new FakeMessage1(Guid.NewGuid()), new Dictionary(), options, + CancellationToken.None); + + await Assert.ThrowsAsync(() => task); + } + + [Fact] + public async Task SendRequestAsync_PreCancelledToken_ThrowsImmediately() + { + var rrm = new RequestReplyManager(Mock.Of(), Mock.Of(), new BusConfiguration()); + using var externalCts = new CancellationTokenSource(); + externalCts.Cancel(); + var options = new RequestOptions { Timeout = 300000 }; + + await Assert.ThrowsAnyAsync(() => + rrm.SendRequestAsync( + new FakeMessage1(Guid.NewGuid()), new Dictionary(), + options, externalCts.Token)); + } + + // --- Gap 4: timeout-vs-cancel same-instant race --- + + [Fact] + public async Task SendRequestAsync_TimeoutAndCancelFiredSimultaneously_ExactlyOneOutcomeAndHandleIsCleanedUp() + { + // Forces timeout and external cancellation to fire at the same instant. + // Uses TaskCompletionSource to block the send pipeline async (no thread-pool blocking), + // then releases it only after arming both signals. Asserts exactly one of the + // two deterministic outcomes (RequestTimeoutException or OperationCanceledException) + // and that the request handle is cleaned up so a subsequent ProcessReply is a no-op. + + var sendEnteredTcs = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var releaseSendTcs = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + string? capturedMessageId = null; + var request = new FakeMessage1(Guid.NewGuid()); + _mockSerializer.SetupSerializeAny([1, 2, 3]); + + using var externalCts = new CancellationTokenSource(); + + // Use Returns with an async lambda so blocking happens asynchronously. + _mockSendPipeline + .Setup(p => p.ExecuteSendMessagePipelineAsync( + It.Is(ctx => ctx.EndPoint == null), + It.IsAny())) + .Returns( + async (ctx, _) => + { + capturedMessageId = ctx.Headers["RequestMessageId"]; + sendEnteredTcs.TrySetResult(); + // Await the gate asynchronously — no thread-pool thread is blocked. + await releaseSendTcs.Task.ConfigureAwait(false); + }); + + _mockSerializer + .Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))) + .Returns(new FakeMessage1(Guid.NewGuid())); + + // Very short timeout — will fire shortly after the send pipeline completes. + var options = new RequestOptions { Timeout = 1 }; + var manager = new RequestReplyManager(_mockSerializer.Object, _mockSendPipeline.Object, new BusConfiguration()); + + var requestTask = manager.SendRequestAsync( + request, new Dictionary(), options, + externalCts.Token); + + // Wait for the send pipeline to be entered. + await sendEnteredTcs.Task.WaitAsync(TimeSpan.FromSeconds(5)); + + // Arm both signals: cancel the external token, then release the pipeline + // so the 1ms timeout and the cancellation race to complete the TCS first. + externalCts.Cancel(); + releaseSendTcs.TrySetResult(); + + var ex = await Record.ExceptionAsync(() => requestTask.WaitAsync(TimeSpan.FromSeconds(5))); + + // Exactly one of the two deterministic outcomes is acceptable. + Assert.True( + ex is RequestTimeoutException or OperationCanceledException, + $"Expected RequestTimeoutException or OperationCanceledException, got: {ex?.GetType().Name}: {ex?.Message}"); + + // The handle must be cleaned up: a subsequent reply for the same id must be a no-op. + Assert.NotNull(capturedMessageId); + var rrm = (IReplyStatusRequestReplyManager)manager; + var handledLate = rrm.TryProcessReply(capturedMessageId!, new byte[] { 0 }, typeof(FakeMessage1)); + Assert.False(handledLate, "request handle was not cleaned up after timeout/cancel"); + _mockSerializer.Verify( + s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1)), + Times.Never); + } + + // Atomic pending-request removal on timeout. + + /// + /// Verifies that a ProcessReply call arriving after the timeout fires does NOT + /// appear in the result set. The pending request must be removed atomically + /// with TrySetResult so a late reply has no entry to append to and cannot + /// smuggle itself into the snapshot returned to the caller. + /// + [Fact] + public async Task SendRequestMultiAsync_LateReplyAfterTimeout_IsNotIncludedInResults() + { + // Arrange + var lateReply = new FakeMessage1(Guid.NewGuid()) { Username = "LateUser" }; + var request = new FakeMessage1(Guid.NewGuid()); + var messageBytes = new byte[] { 1, 2, 3 }; + _mockSerializer.SetupSerializeAny(messageBytes); + + _mockSerializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))) + .Returns(lateReply); + + RequestReplyManager? manager = null; + string? capturedMessageId = null; + + // Use a very short timeout so the task completes before any reply arrives. + var options = new RequestOptions { Timeout = 50 }; + var headers = new Dictionary(); + + _mockSendPipeline.Setup(pipeline => pipeline.ExecuteSendMessagePipelineAsync( + It.Is(ctx => ctx.EndPoint == null), + It.IsAny())) + .Callback((ctx, _) => + { + capturedMessageId = ctx.Headers["RequestMessageId"]; + }) + .Returns(Task.CompletedTask); + + manager = new RequestReplyManager(_mockSerializer.Object, _mockSendPipeline.Object, new BusConfiguration()); + + // Act — let it time out + var results = await manager.SendRequestMultiAsync( + request, headers, options); + + // The task has now completed (timed out). Simulate a late reply arriving + // after the timeout has already fired and the entry should be removed. + Assert.NotNull(capturedMessageId); + manager.ProcessReply(capturedMessageId!, messageBytes, typeof(FakeMessage1)); + + // Assert — the late reply must NOT appear in the snapshot returned before it arrived. + Assert.Empty(results); + + // Also verify that a second call with the same id is a no-op (entry gone). + // If the entry were still present, Deserialize would be called a second time. + _mockSerializer.Verify( + s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1)), + Times.Never); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/RequestReplyManagerTimeoutValidationTests.cs b/src/ServiceConnect.UnitTests/Services/RequestReplyManagerTimeoutValidationTests.cs new file mode 100644 index 000000000..d3c2df9ff --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/RequestReplyManagerTimeoutValidationTests.cs @@ -0,0 +1,110 @@ +using System; +using System.Collections.Generic; +using System.Threading; +using System.Threading.Tasks; +using Moq; +using ServiceConnect.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; +using ServiceConnect.Services; +using ServiceConnect.UnitTests.Fakes.Messages; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +public class RequestReplyManagerTimeoutValidationTests +{ + private static RequestReplyManager CreateManager() + { + var mockSerializer = new Mock(MockBehavior.Loose); + var mockSendPipeline = new Mock(MockBehavior.Loose); + return new RequestReplyManager(mockSerializer.Object, mockSendPipeline.Object, new BusConfiguration()); + } + + [Fact] + public async Task SendRequestAsync_NegativeTimeout_ThrowsArgumentOutOfRange() + { + var manager = CreateManager(); + var options = new RequestOptions { Timeout = -5 }; + + var ex = await Assert.ThrowsAsync(() => + manager.SendRequestAsync( + new FakeMessage1(Guid.NewGuid()), + new Dictionary(), + options, + CancellationToken.None)); + + Assert.Equal("options", ex.ParamName); + } + + [Fact] + public async Task SendRequestMultiAsync_NegativeTimeout_ThrowsArgumentOutOfRange() + { + var manager = CreateManager(); + var options = new RequestOptions { Timeout = -5 }; + + var ex = await Assert.ThrowsAsync(() => + manager.SendRequestMultiAsync( + new FakeMessage1(Guid.NewGuid()), + new Dictionary(), + options, + CancellationToken.None)); + + Assert.Equal("options", ex.ParamName); + } + + [Fact] + public async Task PublishRequestAsync_NegativeTimeout_ThrowsArgumentOutOfRange() + { + var manager = CreateManager(); + var options = new RequestOptions { Timeout = -5 }; + + var ex = await Assert.ThrowsAsync(() => + manager.PublishRequestAsync( + new FakeMessage1(Guid.NewGuid()), + new Dictionary(), + options, + _ => { }, + CancellationToken.None)); + + Assert.Equal("options", ex.ParamName); + } + + [Fact] + public async Task SendRequestAsync_TimeoutInfinite_DoesNotThrowValidationException() + { + var manager = CreateManager(); + var options = new RequestOptions { Timeout = Timeout.Infinite }; + + // Validation must not throw for Timeout.Infinite. The request will + // pend indefinitely against the loose mocks, so cancel via CTS. + using var cts = new CancellationTokenSource(TimeSpan.FromMilliseconds(50)); + await Assert.ThrowsAnyAsync(() => + manager.SendRequestAsync( + new FakeMessage1(Guid.NewGuid()), + new Dictionary(), + options, + cts.Token)); + } + + [Fact] + public async Task SendRequestAsync_ZeroTimeout_ThrowsWithGuidanceTowardDefault() + { + // default(RequestOptions) skips the parameterless ctor and leaves Timeout=0; + // ValidateOptions must reject it so callers get a clear error instead of + // an immediate RequestTimeoutException after 0ms. + var manager = CreateManager(); + +#pragma warning disable IDE0034 // explicit form documents the default(T) trap intentionally + var ex = await Assert.ThrowsAsync(() => + manager.SendRequestAsync( + new FakeMessage1(Guid.NewGuid()), + new Dictionary(), + default(RequestOptions), + CancellationToken.None)); +#pragma warning restore IDE0034 + + Assert.Equal("options", ex.ParamName); + Assert.Contains("RequestOptions.Default", ex.Message); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/RequestReplyManagerTryHandleReplyCancelRaceTests.cs b/src/ServiceConnect.UnitTests/Services/RequestReplyManagerTryHandleReplyCancelRaceTests.cs new file mode 100644 index 000000000..0ee8b6a93 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/RequestReplyManagerTryHandleReplyCancelRaceTests.cs @@ -0,0 +1,162 @@ +using System; +using System.Collections.Generic; +using System.Threading; +using System.Threading.Tasks; +using Moq; +using ServiceConnect.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; +using ServiceConnect.Services; +using ServiceConnect.UnitTests.Fakes; +using ServiceConnect.UnitTests.Fakes.Messages; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +/// +/// Pre-fix TryHandleReply queued TrySetResult / TrySetException via an out parameter +/// invoked OUTSIDE the per-state lock. The state set _closed=true under the lock, then +/// returned, and the caller invoked the queued completion. If the caller's CT fired in +/// the gap between the lock-exit and the completion invocation, the registration's +/// state.Close() observed _closed=true and early-returned without faulting/cancelling +/// the TCS — the queued TrySetResult subsequently completed it as success, and the +/// caller awaited a result despite the cancellation. +/// +/// Post-fix Tcs.TrySetResult / TrySetException run UNDER the lock so the close-vs- +/// complete sequence is atomic with the registration's _closed read. Either the reply +/// wins the lock and TrySetResult observes the (still-open) TCS, or the cancellation +/// wins and TrySetCanceled observes the (still-open) TCS — never both. +/// +public sealed class RequestReplyManagerTryHandleReplyCancelRaceTests +{ + /// + /// Outcome must be exactly one of: success (reply observed), cancelled (caller-CT + /// observed). The third outcome guarded against is the silent drop: success-observed + /// AND the caller's token reports IsCancellationRequested without the await ever + /// surfacing the cancellation. Run the race many times to make the window observable. + /// + [Fact] + public async Task SendRequestAsync_ReplyAndCancelRace_NeverSilentlySwallowsCancel() + { + const int iterations = 256; + + var serializer = new Mock(); + serializer.SetupSerializeAny([1, 2, 3]); + serializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))) + .Returns(() => new FakeMessage1(Guid.NewGuid()) { Username = "reply" }); + + var pipeline = new Mock(); + string? capturedMessageId = null; + pipeline.Setup(p => p.ExecuteSendMessagePipelineAsync(It.IsAny(), It.IsAny())) + .Callback((ctx, _) => capturedMessageId = ctx.Headers["RequestMessageId"]) + .Returns(Task.CompletedTask); + + var manager = new RequestReplyManager(serializer.Object, pipeline.Object, new BusConfiguration()); + + for (var i = 0; i < iterations; i++) + { + capturedMessageId = null; + + using var cts = new CancellationTokenSource(); + var sendTask = manager.SendRequestAsync( + new FakeMessage1(Guid.NewGuid()), + new Dictionary(), + new RequestOptions { Timeout = 60_000 }, + cts.Token); + + // Wait for the send pipeline to record the request id (the registration is + // installed before Execute*Pipeline runs, so once the id is captured the + // cancel-registration is live). + var spinDeadline = DateTime.UtcNow.AddSeconds(5); + while (capturedMessageId is null && DateTime.UtcNow < spinDeadline) + { + await Task.Yield(); + } + Assert.NotNull(capturedMessageId); + + // Race the reply against the caller-CT cancel. Two unparked threads jump on + // the per-state lock at roughly the same instant. + var replyTask = Task.Run(() => manager.TryProcessReply(capturedMessageId!, new byte[] { 1 }, typeof(FakeMessage1))); + var cancelTask = Task.Run(cts.Cancel); + + await Task.WhenAll(replyTask, cancelTask); + + Exception? observedException = null; + FakeMessage1? observedReply = null; + try + { + observedReply = await sendTask; + } + catch (Exception ex) + { + observedException = ex; + } + + // Exactly one of: success or cancel (any OCE subtype). The silent-drop being + // guarded against is the await returning a reply WITH the caller-CT already + // cancelled. Either outcome alone is fine; the failure mode is "got a reply + // AND the registered cancel did not surface anywhere". + if (observedException is null) + { + Assert.NotNull(observedReply); + // Reply legitimately won the lock — registration's state.Close observed + // _closed=true because TrySetResult ran under the lock; the cancel + // callback's TrySetCanceled is a no-op against an already-completed TCS. + // This is the documented success path. + } + else + { + // Cancel won — must surface as OCE (TaskCanceledException is acceptable). + Assert.IsAssignableFrom(observedException); + } + } + } + + /// + /// Single-threaded determinism: cancel the caller-CT EXACTLY between TryProcessReply + /// flipping _closed=true and the completion-of-the-TCS. The completion runs under the + /// per-state lock alongside the _closed flip, so a cancel-after-process either no-ops + /// (TCS already completed) or never reaches its callback (state.Close sees + /// _closed=true). The reply wins, the await returns the reply. + /// + [Fact] + public async Task SendRequestAsync_CancelImmediatelyAfterReply_ReplyWinsCleanly() + { + var serializer = new Mock(); + serializer.SetupSerializeAny([1, 2, 3]); + var expectedReply = new FakeMessage1(Guid.NewGuid()) { Username = "winner" }; + serializer.Setup(s => s.Deserialize(It.IsAny>(), typeof(FakeMessage1))) + .Returns(expectedReply); + + var pipeline = new Mock(); + string? capturedMessageId = null; + pipeline.Setup(p => p.ExecuteSendMessagePipelineAsync(It.IsAny(), It.IsAny())) + .Callback((ctx, _) => capturedMessageId = ctx.Headers["RequestMessageId"]) + .Returns(Task.CompletedTask); + + var manager = new RequestReplyManager(serializer.Object, pipeline.Object, new BusConfiguration()); + using var cts = new CancellationTokenSource(); + var sendTask = manager.SendRequestAsync( + new FakeMessage1(Guid.NewGuid()), + new Dictionary(), + new RequestOptions { Timeout = 60_000 }, + cts.Token); + + var spinDeadline = DateTime.UtcNow.AddSeconds(5); + while (capturedMessageId is null && DateTime.UtcNow < spinDeadline) + { + await Task.Yield(); + } + Assert.NotNull(capturedMessageId); + + // Process the reply first (TCS is now completed under the lock). Then fire the + // cancel — its registration callback runs synchronously and either takes the + // lock and observes _closed=true (no-op) or its TrySetCanceled is a no-op + // against the already-completed TCS. The await must observe the reply, not OCE. + Assert.True(manager.TryProcessReply(capturedMessageId!, new byte[] { 1 }, typeof(FakeMessage1))); + cts.Cancel(); + + var result = await sendTask; + Assert.Same(expectedReply, result); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/RequestReplyManagerUnobservedFaultObserverTests.cs b/src/ServiceConnect.UnitTests/Services/RequestReplyManagerUnobservedFaultObserverTests.cs new file mode 100644 index 000000000..8c0f6d731 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/RequestReplyManagerUnobservedFaultObserverTests.cs @@ -0,0 +1,213 @@ +using System; +using System.Collections.Generic; +using System.IO; +using System.Threading; +using System.Threading.Tasks; +using Moq; +using ServiceConnect.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Exceptions; +using ServiceConnect.Interfaces.Options; +using ServiceConnect.Services; +using ServiceConnect.UnitTests.Fakes; +using ServiceConnect.UnitTests.Fakes.Messages; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +/// +/// Pre-fix only the linkedCts catch in SendRequestAsync / SendRequestMultiAsync / +/// PublishRequestAsync installed the unobserved-fault observer continuation. The +/// user-token catch and catch-all rethrew without observing the TCS, so a registration +/// callback that asynchronously faulted the TCS (e.g. with RequestTimeoutException) +/// could surface as TaskScheduler.UnobservedTaskException at finalization. Post-fix: +/// every catch arm installs the observer. +/// +/// The user-token catch path is theoretically safe today because the registration uses +/// TrySetCanceled and cancelled tasks generally don't raise UnobservedTaskException in +/// modern .NET. The catch-all is genuinely exposed when the send pipeline throws non-OCE +/// (e.g. transport disconnect raises IOException); the fault observer makes the path +/// safe regardless of which catch arm wins. +/// +public sealed class RequestReplyManagerUnobservedFaultObserverTests +{ + [Fact] + public async Task SendRequestAsync_CatchAllOnTransportException_FaultedTcsObserved() + { + var unobserved = 0; + void Handler(object? _, UnobservedTaskExceptionEventArgs e) + { + e.SetObserved(); + Interlocked.Increment(ref unobserved); + } + TaskScheduler.UnobservedTaskException += Handler; + try + { + await RunCatchAllScenarioAsync(static manager => + manager.SendRequestAsync( + new FakeMessage1(Guid.NewGuid()), + new Dictionary(), + new RequestOptions { Timeout = 5_000 })); + + ForceFinalization(); + + Assert.Equal(0, Volatile.Read(ref unobserved)); + } + finally + { + TaskScheduler.UnobservedTaskException -= Handler; + } + } + + [Fact] + public async Task SendRequestMultiAsync_CatchAllOnTransportException_FaultedTcsObserved() + { + var unobserved = 0; + void Handler(object? _, UnobservedTaskExceptionEventArgs e) + { + e.SetObserved(); + Interlocked.Increment(ref unobserved); + } + TaskScheduler.UnobservedTaskException += Handler; + try + { + await RunCatchAllScenarioAsync(static manager => + manager.SendRequestMultiAsync( + new FakeMessage1(Guid.NewGuid()), + new Dictionary(), + new RequestOptions { Timeout = 5_000, ExpectedReplyCount = 1 })); + + ForceFinalization(); + + Assert.Equal(0, Volatile.Read(ref unobserved)); + } + finally + { + TaskScheduler.UnobservedTaskException -= Handler; + } + } + + [Fact] + public async Task PublishRequestAsync_CatchAllOnTransportException_FaultedTcsObserved() + { + var unobserved = 0; + void Handler(object? _, UnobservedTaskExceptionEventArgs e) + { + e.SetObserved(); + Interlocked.Increment(ref unobserved); + } + TaskScheduler.UnobservedTaskException += Handler; + try + { + var serializer = new Mock(); + serializer.SetupSerializeAny([1, 2, 3]); + + var pipeline = new Mock(); + pipeline + .Setup(p => p.ExecutePublishMessagePipelineAsync(It.IsAny(), It.IsAny())) + .Throws(new IOException("transport disconnect")); + + var manager = new RequestReplyManager(serializer.Object, pipeline.Object, new BusConfiguration()); + + await Assert.ThrowsAsync(() => + manager.PublishRequestAsync( + new FakeMessage1(Guid.NewGuid()), + new Dictionary(), + new RequestOptions { Timeout = 5_000, ExpectedReplyCount = 1 }, + _ => { })); + + ForceFinalization(); + + Assert.Equal(0, Volatile.Read(ref unobserved)); + } + finally + { + TaskScheduler.UnobservedTaskException -= Handler; + } + } + + /// + /// The user-token catch is theoretically safe (TrySetCanceled doesn't raise + /// UnobservedTaskException). This test still exercises the path to confirm the + /// observer attachment doesn't break the OCE rethrow contract — the bare OCE + /// must continue to propagate so existing handlers keep working. + /// + [Fact] + public async Task SendRequestAsync_UserTokenCancelStillThrowsOperationCanceled() + { + var unobserved = 0; + void Handler(object? _, UnobservedTaskExceptionEventArgs e) + { + e.SetObserved(); + Interlocked.Increment(ref unobserved); + } + TaskScheduler.UnobservedTaskException += Handler; + try + { + var serializer = new Mock(); + serializer.SetupSerializeAny([1, 2, 3]); + + var pipeline = new Mock(); + pipeline + .Setup(p => p.ExecuteSendMessagePipelineAsync(It.IsAny(), It.IsAny())) + .Returns(async (SendContext _, CancellationToken ct) => + { + var tcs = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + using (ct.Register(() => tcs.TrySetCanceled(ct))) + { + await tcs.Task.ConfigureAwait(false); + } + }); + + var manager = new RequestReplyManager(serializer.Object, pipeline.Object, new BusConfiguration()); + using var callerCts = new CancellationTokenSource(TimeSpan.FromMilliseconds(50)); + + var ex = await Assert.ThrowsAnyAsync(() => + manager.SendRequestAsync( + new FakeMessage1(Guid.NewGuid()), + new Dictionary(), + new RequestOptions { Timeout = 60_000 }, + callerCts.Token)); + + // Must NOT be the typed send-cancel exception — caller-token cancel keeps + // surfacing as a vanilla OCE for handler compatibility. + Assert.IsNotType(ex); + + ForceFinalization(); + + Assert.Equal(0, Volatile.Read(ref unobserved)); + } + finally + { + TaskScheduler.UnobservedTaskException -= Handler; + } + } + + private static async Task RunCatchAllScenarioAsync(Func act) + { + var serializer = new Mock(); + serializer.SetupSerializeAny([1, 2, 3]); + + var pipeline = new Mock(); + // Synchronous throw of a non-OCE exception forces the catch-all path. + pipeline + .Setup(p => p.ExecuteSendMessagePipelineAsync(It.IsAny(), It.IsAny())) + .Throws(new IOException("transport disconnect")); + + var manager = new RequestReplyManager(serializer.Object, pipeline.Object, new BusConfiguration()); + + await Assert.ThrowsAsync(() => act(manager)); + } + + private static void ForceFinalization() + { + // Two GC cycles so the TCS Task that lost its rooted reference to the catch-arm + // local is collected, its finalizer runs (which is what raises + // UnobservedTaskException), and then a second collect/wait flushes any pending + // exception event delivery. + GC.Collect(); + GC.WaitForPendingFinalizers(); + GC.Collect(); + GC.WaitForPendingFinalizers(); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/SendMessagePipelineTests.cs b/src/ServiceConnect.UnitTests/Services/SendMessagePipelineTests.cs new file mode 100644 index 000000000..f5b570472 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/SendMessagePipelineTests.cs @@ -0,0 +1,343 @@ +using System; +using System.Collections.Generic; +using System.Threading; +using System.Threading.Tasks; +using Microsoft.Extensions.DependencyInjection; +using Moq; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.Services +{ + public class SendMessagePipelineTests + { + private readonly Mock _mockProducer; + private readonly Mock _mockPipelineConfig; + private readonly ServiceProvider _serviceProvider; + + public SendMessagePipelineTests() + { + _mockProducer = new Mock(); + _mockProducer.Setup(p => p.PublishAsync(It.IsAny(), It.IsAny>(), It.IsAny>(), It.IsAny())) + .Returns(Task.CompletedTask); + _mockProducer.Setup(p => p.SendAsync(It.IsAny(), It.IsAny>(), It.IsAny>(), It.IsAny())) + .Returns(Task.CompletedTask); + _mockProducer.Setup(p => p.SendAsync(It.IsAny(), It.IsAny(), It.IsAny>(), It.IsAny>(), It.IsAny())) + .Returns(Task.CompletedTask); + _mockProducer.Setup(p => p.SendAsync(It.IsAny(), It.IsAny(), It.IsAny>(), It.IsAny(), It.IsAny>(), It.IsAny())) + .Returns(Task.CompletedTask); + + _mockPipelineConfig = new Mock(); + _mockPipelineConfig.Setup(p => p.SendMessageMiddleware).Returns([]); + _serviceProvider = new ServiceCollection().BuildServiceProvider(); + } + + private SendMessagePipeline CreatePipeline() + { + return new SendMessagePipeline(_mockProducer.Object, _mockPipelineConfig.Object, _serviceProvider); + } + + private static SendContext MakePublishContext(Type type, byte[] bytes, IDictionary? headers = null) => new() + { + Message = new TestSendPipelineMessage(), + MessageType = type, + MessageBytes = bytes, + Headers = headers ?? new Dictionary(StringComparer.Ordinal), + Operation = SendOperation.Publish, + }; + + private static SendContext MakeSendContext(Type type, byte[] bytes, IDictionary? headers = null, string? endPoint = null) => new() + { + Message = new TestSendPipelineMessage(), + MessageType = type, + MessageBytes = bytes, + Headers = headers ?? new Dictionary(StringComparer.Ordinal), + EndPoint = endPoint, + Operation = SendOperation.Send, + }; + + [Fact] + public void Constructor_ThrowsWhenProducerIsNull() + { + Assert.Throws(() => new SendMessagePipeline(null!, _mockPipelineConfig.Object, _serviceProvider)); + } + + [Fact] + public async Task ExecutePublishMessagePipelineAsync_CallsProducerPublishAsync() + { + var pipeline = CreatePipeline(); + var type = typeof(string); + var bytes = new byte[] { 1, 2, 3 }; + var headers = new Dictionary { ["key"] = "value" }; + + await pipeline.ExecutePublishMessagePipelineAsync(MakePublishContext(type, bytes, headers)); + + _mockProducer.Verify(p => p.PublishAsync( + type, + It.Is>(b => b.ToArray().SequenceEqual(bytes)), + It.Is>(h => h.Count == headers.Count), + It.IsAny()), Times.Once); + } + + [Fact] + public async Task ExecuteSendMessagePipelineAsync_WithEndPoint_CallsSendAsyncWithEndPoint() + { + var pipeline = CreatePipeline(); + var type = typeof(string); + var bytes = new byte[] { 1, 2, 3 }; + var headers = new Dictionary(); + const string endPoint = "my-queue"; + + await pipeline.ExecuteSendMessagePipelineAsync(MakeSendContext(type, bytes, headers, endPoint)); + + _mockProducer.Verify(p => p.SendAsync( + endPoint, + type, + It.Is>(b => b.ToArray().SequenceEqual(bytes)), + It.IsAny(), + It.IsAny>(), + It.IsAny()), Times.Once); + _mockProducer.Verify(p => p.SendAsync(It.IsAny(), It.IsAny>(), It.IsAny>(), It.IsAny()), Times.Never); + } + + [Fact] + public async Task ExecuteSendMessagePipelineAsync_WithoutEndPoint_CallsSendAsyncWithoutEndPoint() + { + var pipeline = CreatePipeline(); + var type = typeof(string); + var bytes = new byte[] { 1, 2, 3 }; + + await pipeline.ExecuteSendMessagePipelineAsync(MakeSendContext(type, bytes)); + + _mockProducer.Verify(p => p.SendAsync( + type, + It.Is>(b => b.ToArray().SequenceEqual(bytes)), + It.IsAny>(), + It.IsAny()), Times.Once); + _mockProducer.Verify(p => p.SendAsync(It.IsAny(), It.IsAny(), It.IsAny>(), It.IsAny>(), It.IsAny()), Times.Never); + _mockProducer.Verify(p => p.SendAsync(It.IsAny(), It.IsAny(), It.IsAny>(), It.IsAny(), It.IsAny>(), It.IsAny()), Times.Never); + } + + [Fact] + public async Task ExecuteSendMessagePipelineAsync_WithEmptyEndPoint_CallsSendAsyncWithoutEndPoint() + { + var pipeline = CreatePipeline(); + var type = typeof(string); + var bytes = new byte[] { 1, 2, 3 }; + + await pipeline.ExecuteSendMessagePipelineAsync(MakeSendContext(type, bytes, endPoint: string.Empty)); + + _mockProducer.Verify(p => p.SendAsync( + type, + It.Is>(b => b.ToArray().SequenceEqual(bytes)), + It.IsAny>(), + It.IsAny()), Times.Once); + _mockProducer.Verify(p => p.SendAsync(It.IsAny(), It.IsAny(), It.IsAny>(), It.IsAny>(), It.IsAny()), Times.Never); + _mockProducer.Verify(p => p.SendAsync(It.IsAny(), It.IsAny(), It.IsAny>(), It.IsAny(), It.IsAny>(), It.IsAny()), Times.Never); + } + + [Fact] + public async Task DisposeAsync_DoesNotDisposeProducer_ProducerLifetimeManagedByContainer() + { + var pipeline = CreatePipeline(); + + await pipeline.DisposeAsync(); + + _mockProducer.Verify(p => p.DisposeAsync(), Times.Never); + } + + [Fact] + public async Task DisposeAsync_CalledTwice_IsIdempotent() + { + var pipeline = CreatePipeline(); + + await pipeline.DisposeAsync(); + await pipeline.DisposeAsync(); + + _mockProducer.Verify(p => p.DisposeAsync(), Times.Never); + } + + [Fact] + public async Task ExecutePublishMessagePipelineAsync_ThreadsSendContextWithPublishMetadata() + { + SendContext? captured = null; + var middleware = new CapturingSendMiddleware(ctx => captured = ctx); + + var services = new ServiceCollection(); + services.AddSingleton(middleware); + var sp = services.BuildServiceProvider(); + + var mockConfig = new Mock(); + mockConfig.Setup(c => c.SendMessageMiddleware).Returns([typeof(CapturingSendMiddleware)]); + + var pipeline = new SendMessagePipeline(_mockProducer.Object, mockConfig.Object, sp); + + var msg = new TestSendPipelineMessage(); + var headers = new Dictionary(StringComparer.Ordinal) { ["k"] = "v" }; + var context = new SendContext + { + Message = msg, + MessageType = typeof(TestSendPipelineMessage), + MessageBytes = new byte[] { 1, 2, 3 }, + Headers = headers, + RoutingKey = "rk", + Operation = SendOperation.Publish, + }; + + await pipeline.ExecutePublishMessagePipelineAsync(context); + + Assert.NotNull(captured); + Assert.Same(msg, captured.Message); + Assert.Equal(typeof(TestSendPipelineMessage), captured.MessageType); + Assert.Same(headers, captured.Headers); + Assert.Equal("rk", captured.RoutingKey); + Assert.Equal(SendOperation.Publish, captured.Operation); + Assert.Null(captured.EndPoint); + } + + [Fact] + public async Task ExecuteSendMessagePipelineAsync_ThreadsSendContextWithSendMetadata() + { + SendContext? captured = null; + var middleware = new CapturingSendMiddleware(ctx => captured = ctx); + + var services = new ServiceCollection(); + services.AddSingleton(middleware); + var sp = services.BuildServiceProvider(); + + var mockConfig = new Mock(); + mockConfig.Setup(c => c.SendMessageMiddleware).Returns([typeof(CapturingSendMiddleware)]); + + var pipeline = new SendMessagePipeline(_mockProducer.Object, mockConfig.Object, sp); + + var msg = new TestSendPipelineMessage(); + var headers = new Dictionary(StringComparer.Ordinal) { ["k"] = "v" }; + var context = new SendContext + { + Message = msg, + MessageType = typeof(TestSendPipelineMessage), + MessageBytes = new byte[] { 1, 2, 3 }, + Headers = headers, + EndPoint = "my-queue", + RoutingKey = null, + Operation = SendOperation.Send, + }; + + await pipeline.ExecuteSendMessagePipelineAsync(context); + + Assert.NotNull(captured); + Assert.Same(msg, captured.Message); + Assert.Equal(typeof(TestSendPipelineMessage), captured.MessageType); + Assert.Same(headers, captured.Headers); + Assert.Equal("my-queue", captured.EndPoint); + Assert.Null(captured.RoutingKey); + Assert.Equal(SendOperation.Send, captured.Operation); + } + + // Outgoing-filter short-circuit via ISendMessageMiddleware + [Fact] + public async Task ExecuteSendMessagePipelineAsync_WhenMiddlewareShortCircuits_ProducerSendIsNeverCalled() + { + // A middleware that does NOT call next short-circuits the pipeline. + // IProducer.SendAsync / PublishAsync must never be invoked. + var services = new ServiceCollection(); + services.AddTransient(); + var sp = services.BuildServiceProvider(); + + var mockConfig = new Mock(); + mockConfig.Setup(c => c.SendMessageMiddleware) + .Returns([typeof(BlockingSendMiddleware)]); + + var pipeline = new SendMessagePipeline(_mockProducer.Object, mockConfig.Object, sp); + + await pipeline.ExecuteSendMessagePipelineAsync(MakeSendContext(typeof(string), [1, 2, 3])); + + _mockProducer.Verify( + p => p.SendAsync(It.IsAny(), It.IsAny>(), It.IsAny>(), It.IsAny()), + Times.Never); + _mockProducer.Verify( + p => p.SendAsync(It.IsAny(), It.IsAny(), It.IsAny>(), It.IsAny>(), It.IsAny()), + Times.Never); + _mockProducer.Verify( + p => p.SendAsync(It.IsAny(), It.IsAny(), It.IsAny>(), It.IsAny(), It.IsAny>(), It.IsAny()), + Times.Never); + _mockProducer.Verify( + p => p.PublishAsync(It.IsAny(), It.IsAny>(), It.IsAny>(), It.IsAny()), + Times.Never); + } + + // Pins the invariant that SendContext.RoutingSlipHopsCompleted is the framework-controlled + // value delivered to the producer — middleware that writes to Headers cannot override it. + [Fact] + public async Task ExecuteSendMessagePipelineAsync_MiddlewareMutatesHopHeader_TerminalReceivesContextValue() + { + var services = new ServiceCollection(); + services.AddSingleton(); + var sp = services.BuildServiceProvider(); + + var mockConfig = new Mock(); + mockConfig.Setup(c => c.SendMessageMiddleware) + .Returns([typeof(HopMutatingMiddleware)]); + + var pipeline = new SendMessagePipeline(_mockProducer.Object, mockConfig.Object, sp); + + var ctx = new SendContext + { + Message = new TestSendPipelineMessage(), + MessageType = typeof(TestSendPipelineMessage), + MessageBytes = ReadOnlyMemory.Empty, + Headers = new Dictionary(StringComparer.Ordinal), + EndPoint = "dest-q", + RoutingKey = null, + Operation = SendOperation.Send, + RoutingSlipHopsCompleted = 4, + }; + + await pipeline.ExecuteSendMessagePipelineAsync(ctx); + + // The SendContext value (4) must reach the producer regardless of what the + // middleware wrote into Headers[RoutingSlipHopsCompleted]. + _mockProducer.Verify(p => p.SendAsync( + "dest-q", + typeof(TestSendPipelineMessage), + It.IsAny>(), + 4, + It.IsAny?>(), + It.IsAny()), Times.Once); + } + } +} + +file sealed class TestSendPipelineMessage : Message +{ + public TestSendPipelineMessage() : base(Guid.NewGuid()) { } +} + +file sealed class BlockingSendMiddleware : ISendMessageMiddleware +{ + // Intentionally does NOT call next — short-circuits the pipeline. + public Task ProcessAsync(SendContext context, SendMessageDelegate next, CancellationToken cancellationToken) + => Task.CompletedTask; +} + +file sealed class CapturingSendMiddleware(Action capture) : ISendMessageMiddleware +{ + public Task ProcessAsync(SendContext context, SendMessageDelegate next, CancellationToken cancellationToken) + { + capture(context); + return next(context, cancellationToken); + } +} + +// Simulates a middleware that attempts to override the hop counter via Headers. +// The pipeline terminal must still forward SendContext.RoutingSlipHopsCompleted, not this value. +file sealed class HopMutatingMiddleware : ISendMessageMiddleware +{ + public Task ProcessAsync(SendContext context, SendMessageDelegate next, CancellationToken cancellationToken) + { + context.Headers[HeaderKeys.RoutingSlipHopsCompleted] = "0"; + return next(context, cancellationToken); + } +} diff --git a/src/ServiceConnect.UnitTests/Services/SystemTextJsonMessageSerializerTests.cs b/src/ServiceConnect.UnitTests/Services/SystemTextJsonMessageSerializerTests.cs new file mode 100644 index 000000000..7ead14ffd --- /dev/null +++ b/src/ServiceConnect.UnitTests/Services/SystemTextJsonMessageSerializerTests.cs @@ -0,0 +1,228 @@ +using System; +using System.Buffers; +using System.Text; +using System.Text.Json; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Exceptions; +using ServiceConnect.Services; +using ServiceConnect.UnitTests.Fakes.Messages; +using Xunit; + +namespace ServiceConnect.UnitTests.Services; + +public class SystemTextJsonMessageSerializerTests +{ + private readonly SystemTextJsonMessageSerializer _serializer; + + public SystemTextJsonMessageSerializerTests() + { + _serializer = new SystemTextJsonMessageSerializer(); + } + + [Fact] + public void Serialize_WritesNonEmptyBytes() + { + var message = new FakeMessage1(Guid.NewGuid()) { Username = "Alice" }; + + var bw = new ArrayBufferWriter(); + _serializer.Serialize(message, bw); + + Assert.True(bw.WrittenCount > 0); + } + + [Fact] + public void Serialize_ThrowsSerializationException_WhenMessageIsNull() + { + var bw = new ArrayBufferWriter(); + Assert.Throws(() => _serializer.Serialize(null!, bw)); + } + + [Fact] + public void Serialize_ThrowsArgumentNull_WhenOutputIsNull() + { + var message = new FakeMessage1(Guid.NewGuid()); + Assert.Throws(() => _serializer.Serialize(message, null!)); + } + + [Fact] + public void Deserialize_Generic_RoundTripsMessage() + { + var original = new FakeMessage1(Guid.NewGuid()) { Username = "Bob" }; + var bw = new ArrayBufferWriter(); + _serializer.Serialize(original, bw); + + var result = _serializer.Deserialize(bw.WrittenMemory); + + Assert.NotNull(result); + Assert.Equal(original.Username, result.Username); + Assert.Equal(original.CorrelationId, result.CorrelationId); + } + + [Fact] + public void Deserialize_ByType_RoundTripsMessage() + { + var original = new FakeMessage1(Guid.NewGuid()) { Username = "Carol" }; + var bw = new ArrayBufferWriter(); + _serializer.Serialize(original, bw); + + var result = _serializer.Deserialize(bw.WrittenMemory, typeof(FakeMessage1)); + + Assert.NotNull(result); + var typed = Assert.IsType(result); + Assert.Equal(original.Username, typed.Username); + } + + [Fact] + public void Deserialize_ThrowsSerializationException_OnInvalidJson() + { + var invalidBytes = Encoding.UTF8.GetBytes("{ this is not valid json !!!"); + + Assert.Throws(() => + _serializer.Deserialize((ReadOnlyMemory)invalidBytes.AsMemory(), typeof(FakeMessage1))); + } + + [Fact] + public void Deserialize_ThrowsSerializationException_WhenDeserializationReturnsNull() + { + var nullBytes = Encoding.UTF8.GetBytes("null"); + + Assert.Throws(() => + _serializer.Deserialize((ReadOnlyMemory)nullBytes.AsMemory(), typeof(FakeMessage1))); + } + + [Fact] + public void Deserialize_ReadOnlySequence_AcrossSegmentBoundary_RoundTripsMessage() + { + // Construct a ReadOnlySequence whose JSON token straddles a segment boundary. + // The STJ override of Deserialize(in ReadOnlySequence, Type) must read across + // segments via Utf8JsonReader without flattening — this test guards the zero-copy + // streaming path against future refactors that might silently revert to ToArray(). + var original = new FakeMessage1(Guid.NewGuid()) { Username = "across-segment" }; + var bw = new ArrayBufferWriter(); + _serializer.Serialize(original, bw); + var fullBytes = bw.WrittenSpan.ToArray(); + + // Split the payload mid-token (16 bytes lands inside a property name or value for a + // typical FakeMessage1 serialisation, exercising the multi-segment Utf8JsonReader path). + var split = fullBytes.Length / 2; + var firstSegment = new ArraySegment(fullBytes, 0, split); + var secondSegment = new ArraySegment(fullBytes, split, fullBytes.Length - split); + + var first = new ByteSegment(firstSegment); + var second = first.Append(secondSegment); + var sequence = new ReadOnlySequence(first, 0, second, secondSegment.Count); + + Assert.False(sequence.IsSingleSegment, "Test setup must produce a multi-segment sequence."); + + var result = _serializer.Deserialize(in sequence, typeof(FakeMessage1)); + + var typed = Assert.IsType(result); + Assert.Equal(original.Username, typed.Username); + Assert.Equal(original.CorrelationId, typed.CorrelationId); + } + + [Fact] + public void Deserialize_ReadOnlySequence_RejectsPayloadExceedingConfiguredMaxDepth() + { + // Build a JSON payload nested 50 levels deep — well above the configured cap of 32. + // Wrap it in a single-segment ReadOnlySequence so we hit the streaming overload. + // Pre-fix, the sequence overload silently accepted this because it constructed the + // Utf8JsonReader with state:default (MaxDepth=64) instead of the configured cap. + var deepPayload = BuildDeepObject(50); + var bytes = Encoding.UTF8.GetBytes(deepPayload); + var sequence = new ReadOnlySequence(bytes); + + var serializer = new SystemTextJsonMessageSerializer(); + var ex = Assert.Throws(() => serializer.Deserialize(in sequence, typeof(NestedMessage))); + + // Inner exception is a JsonException for depth-cap violation. + Assert.IsType(ex.InnerException); + } + + [Fact] + public void Deserialize_ReadOnlySequence_AcceptsPayloadWithinConfiguredMaxDepth() + { + // Sanity check that depths within the cap still round-trip on the sequence overload. + var shallowPayload = BuildDeepObject(10); + var bytes = Encoding.UTF8.GetBytes(shallowPayload); + var sequence = new ReadOnlySequence(bytes); + + var serializer = new SystemTextJsonMessageSerializer(); + var result = serializer.Deserialize(in sequence, typeof(NestedMessage)); + Assert.NotNull(result); + } + + [Fact] + public void Deserialize_ReadOnlySequence_EnforcesDepthCapAtBoundary() + { + // The serializer pins MaxDepth=32 in its ctor for wire-compat with Newtonsoft. + // Pin the boundary precisely: depth 33 must be rejected by the sequence overload, + // which threads _options.MaxDepth through the JsonReaderState rather than letting + // it fall back to JsonReaderState's hidden default of 64 (which would silently + // accept depth 33–64 payloads on the streaming hot path while the byte-span path + // rejected the same bytes). + var depth33 = BuildDeepObject(33); + var bytes = Encoding.UTF8.GetBytes(depth33); + var sequence = new ReadOnlySequence(bytes); + + var serializer = new SystemTextJsonMessageSerializer(); + var ex = Assert.Throws(() => serializer.Deserialize(in sequence, typeof(NestedMessage))); + Assert.IsType(ex.InnerException); + } + + [Fact] + public void Deserialize_Span_RejectsPayloadExceedingConfiguredMaxDepth() + { + // Parity check — the byte-span overload already enforced the configured cap by + // threading _options through JsonSerializer.Deserialize. Both overloads must + // reject the same payload. + var deepPayload = BuildDeepObject(50); + var bytes = Encoding.UTF8.GetBytes(deepPayload); + + var serializer = new SystemTextJsonMessageSerializer(); + var ex = Assert.Throws(() => + serializer.Deserialize((ReadOnlyMemory)bytes.AsMemory(), typeof(NestedMessage))); + Assert.IsType(ex.InnerException); + } + + private static string BuildDeepObject(int depth) + { + // Produces {"Inner":{"Inner":{...{"Inner":null}}}} — `depth` levels of the "Inner" + // property chain, terminated by a null value. + var sb = new StringBuilder(); + for (var i = 0; i < depth; i++) + { + sb.Append("{\"Inner\":"); + } + + sb.Append("null"); + for (var i = 0; i < depth; i++) + { + sb.Append('}'); + } + + return sb.ToString(); + } + + private sealed class NestedMessage : Message + { + public NestedMessage() : base(Guid.NewGuid()) { } + + public NestedMessage? Inner { get; set; } + } + + private sealed class ByteSegment : ReadOnlySequenceSegment + { + public ByteSegment(ReadOnlyMemory memory) + { + Memory = memory; + } + + public ByteSegment Append(ReadOnlyMemory memory) + { + var next = new ByteSegment(memory) { RunningIndex = RunningIndex + Memory.Length }; + Next = next; + return next; + } + } +} diff --git a/src/ServiceConnect.UnitTests/Stream/CreateStreamTests.cs b/src/ServiceConnect.UnitTests/Stream/CreateStreamTests.cs deleted file mode 100644 index 851eb9caf..000000000 --- a/src/ServiceConnect.UnitTests/Stream/CreateStreamTests.cs +++ /dev/null @@ -1,103 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; -using System.Threading.Tasks; -using Moq; -using ServiceConnect.Core; -using ServiceConnect.Interfaces; -using ServiceConnect.UnitTests.Fakes.Messages; -using Xunit; - -namespace ServiceConnect.UnitTests.Stream -{ - public class CreateStreamTests - { - - [Fact] - public void CreateStreamShouldCreateAMessageBusWriteStream() - { - // Arrange - var mockConfiguration = new Mock(); - var mockProducer = new Mock(); - var mockContainer = new Mock(); - var mockRequestConfiguration = new Mock(); - var mockStream = new Mock(); - var mockSendMessagePipeline = new Mock(); - mockConfiguration.Setup(x => x.GetSendMessagePipeline()).Returns(mockSendMessagePipeline.Object); - mockConfiguration.Setup(x => x.GetContainer()).Returns(mockContainer.Object); - mockConfiguration.Setup(x => x.GetProducer()).Returns(mockProducer.Object); - mockConfiguration.SetupGet(x => x.TransportSettings).Returns(new TransportSettings ()); - mockConfiguration.Setup(x => x.GetRequestConfiguration(It.IsAny())).Returns(mockRequestConfiguration.Object); - mockConfiguration.Setup(x=> x.GetMessageBusWriteStream(It.IsAny(), "TestEndpoint", It.IsAny(), It.IsAny())).Returns(mockStream.Object); - var task = new Task(() => { }); - mockRequestConfiguration.Setup(x => x.SetHandler(It.IsAny>())).Returns(task); - - var message = new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim Watson" - }; - - mockSendMessagePipeline.Setup(x => x.ExecuteSendMessagePipeline(It.IsAny(), It.IsAny(), It.IsAny>(), It.IsAny())).Callback(task.Start); - - // Act - var bus = new Bus(mockConfiguration.Object); - - // Act - var stream = bus.CreateStream("TestEndpoint", message); - - // Assert - Assert.NotNull(stream); - Assert.Equal(mockStream.Object, stream); - } - - [Fact] - public void CreateStreamShouldSendARequestMessageToTheSpecifiedEndpoint() - { - // Arrange - var mockConfiguration = new Mock(); - var mockProducer = new Mock(); - var mockContainer = new Mock(); - var mockRequestConfiguration = new Mock(); - var mockSendMessagePipeline = new Mock(); - mockConfiguration.Setup(x => x.GetSendMessagePipeline()).Returns(mockSendMessagePipeline.Object); - mockConfiguration.Setup(x => x.GetContainer()).Returns(mockContainer.Object); - mockConfiguration.Setup(x => x.GetProducer()).Returns(mockProducer.Object); - mockConfiguration.SetupGet(x => x.TransportSettings).Returns(new TransportSettings()); - mockConfiguration.Setup(x => x.GetRequestConfiguration(It.IsAny())).Returns(mockRequestConfiguration.Object); - var task = new Task(() => { }); - mockRequestConfiguration.Setup(x => x.SetHandler(It.IsAny>())).Returns(task); - - var message = new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim Watson" - }; - - mockSendMessagePipeline.Setup(x => x.ExecuteSendMessagePipeline(It.IsAny(), It.IsAny(), It.IsAny>(), It.IsAny())).Callback(task.Start); - - // Act - var bus = new Bus(mockConfiguration.Object); - - // Act - bus.CreateStream("TestEndpoint", message); - - // Assert - - mockSendMessagePipeline.Verify(x => x.ExecuteSendMessagePipeline(It.IsAny(), It.IsAny(), It.Is>(y => y["MessageType"] == "ByteStream" && y.ContainsKey("Start")), "TestEndpoint")); - } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.UnitTests/Stream/ProcessStreamMessageTests.cs b/src/ServiceConnect.UnitTests/Stream/ProcessStreamMessageTests.cs deleted file mode 100644 index 747a80b14..000000000 --- a/src/ServiceConnect.UnitTests/Stream/ProcessStreamMessageTests.cs +++ /dev/null @@ -1,260 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; -using System.Text; -using Moq; -using Newtonsoft.Json; -using ServiceConnect.Core; -using ServiceConnect.Interfaces; -using ServiceConnect.UnitTests.Fakes.Messages; -using Xunit; - -namespace ServiceConnect.UnitTests.Stream -{ - public class ProcessStreamMessageTests - { - private Mock _mockConfiguration; - private Mock _mockContainer; - private Mock _mockConsumer; - private Mock _mockProducer; - private ConsumerEventHandler _fakeEventHandler; - - public ProcessStreamMessageTests() - { - _mockConfiguration = new Mock(); - _mockContainer = new Mock(); - _mockConsumer = new Mock(); - _mockProducer = new Mock(); - _mockConfiguration.Setup(x => x.GetContainer()).Returns(_mockContainer.Object); - _mockConfiguration.Setup(x => x.GetProducer()).Returns(_mockProducer.Object); - _mockConfiguration.SetupGet(x => x.TransportSettings).Returns(new TransportSettings { QueueName = "ServiceConnect.UnitTests" }); - _mockConfiguration.Setup(x => x.Clients).Returns(1); - _mockConfiguration.Setup(x => x.GetConsumer()).Returns(_mockConsumer.Object); - } - - public bool AssignEventHandler(ConsumerEventHandler eventHandler) - { - _fakeEventHandler = eventHandler; - return true; - } - - [Fact] - public void StartMessageShouldCreateANewMessageBusReadStream() - { - // Arrange - var bus = new Bus(_mockConfiguration.Object); - - var mockStream = new Mock(); - mockStream.Setup(x => x.HandlerCount).Returns(1); - _mockConsumer.Setup(x => x.StartConsuming(It.IsAny(), It.IsAny>(), It.Is(y => AssignEventHandler(y)), It.IsAny())); - var mockProcessor = new Mock(); - _mockContainer.Setup(x => x.GetInstance(It.Is>(y => y["container"] == _mockContainer.Object))).Returns(mockProcessor.Object); - mockProcessor.Setup(x => x.ProcessMessage(It.IsAny(), mockStream.Object)); - _mockConfiguration.Setup(x => x.GetMessageBusReadStream()).Returns(mockStream.Object); - var message = new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim" - }; - - bus.StartConsuming(); - - // Act - _fakeEventHandler(Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(message)), typeof(FakeMessage1).AssemblyQualifiedName, new Dictionary - { - { "Start", "" }, - { "SequenceId", Encoding.UTF8.GetBytes("TestSequence") }, - { "SourceAddress", Encoding.UTF8.GetBytes("Source") }, - { "RequestMessageId", Encoding.UTF8.GetBytes("MessageId") }, - { "MessageType", Encoding.UTF8.GetBytes("ByteStream")} - }); - - // Assert - mockProcessor.Verify(x => x.ProcessMessage(It.IsAny(), It.IsAny()), Times.Once); - } - - [Fact] - public void StartMessageShouldCallProcessMessageOnStreamProcessor() - { - // Arrange - var bus = new Bus(_mockConfiguration.Object); - - var mockStream = new Mock(); - mockStream.Setup(x => x.HandlerCount).Returns(1); - _mockConsumer.Setup(x => x.StartConsuming(It.IsAny(), It.IsAny>(), It.Is(y => AssignEventHandler(y)), It.IsAny())); - var mockProcessor = new Mock(); - _mockContainer.Setup(x => x.GetInstance(It.Is>(y => y["container"] == _mockContainer.Object))).Returns(mockProcessor.Object); - mockProcessor.Setup(x => x.ProcessMessage(It.IsAny(), mockStream.Object)); - _mockConfiguration.Setup(x => x.GetMessageBusReadStream()).Returns(mockStream.Object); - var message = new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim" - }; - - bus.StartConsuming(); - - // Act - _fakeEventHandler(Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(message)), typeof(FakeMessage1).AssemblyQualifiedName, new Dictionary - { - { "Start", "" }, - { "SequenceId", Encoding.UTF8.GetBytes("TestSequence") }, - { "SourceAddress", Encoding.UTF8.GetBytes("Source") }, - { "RequestMessageId", Encoding.UTF8.GetBytes("MessageId") }, - { "MessageType", Encoding.UTF8.GetBytes("ByteStream")} - }); - - // Assert - mockProcessor.Verify(x => x.ProcessMessage(It.Is(y => y.Username == "Tim"), It.IsAny()), Times.Once); - } - - [Fact] - public void IfByteStreamHasntBeenStartedAndBusRecievesAStreamMessageBusShouldIgnoreIt() - { - // Arrange - var bus = new Bus(_mockConfiguration.Object); - - var mockStream = new Mock(); - mockStream.Setup(x => x.HandlerCount).Returns(1); - _mockConsumer.Setup(x => x.StartConsuming(It.IsAny(), It.IsAny>(), It.Is(y => AssignEventHandler(y)), It.IsAny())); - var mockProcessor = new Mock(); - _mockContainer.Setup(x => x.GetInstance(It.Is>(y => y["container"] == _mockContainer.Object))).Returns(mockProcessor.Object); - mockProcessor.Setup(x => x.ProcessMessage(It.IsAny(), mockStream.Object)); - _mockConfiguration.Setup(x => x.GetMessageBusReadStream()).Returns(mockStream.Object); - - var message = new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim" - }; - - bus.StartConsuming(); - - // Act - _fakeEventHandler(Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(message)), typeof(FakeMessage1).AssemblyQualifiedName, new Dictionary - { - { "SequenceId", Encoding.UTF8.GetBytes("TestSequence") }, - { "SourceAddress", Encoding.UTF8.GetBytes("Source") }, - { "RequestMessageId", Encoding.UTF8.GetBytes("MessageId") }, - { "MessageType", Encoding.UTF8.GetBytes("ByteStream")} - }); - - // Assert - mockStream.Verify(x => x.Write(It.IsAny(), It.IsAny()), Times.Never); - } - - [Fact] - public void ConsumeMessageEventShouldProcessStreamMessage() - { - // Arrange - var bus = new Bus(_mockConfiguration.Object); - - var mockStream = new Mock(); - mockStream.Setup(x => x.HandlerCount).Returns(1); - _mockConsumer.Setup(x => x.StartConsuming(It.IsAny(), It.IsAny>(), It.Is(y => AssignEventHandler(y)), It.IsAny())); - var mockProcessor = new Mock(); - _mockContainer.Setup(x => x.GetInstance(It.Is>(y => y["container"] == _mockContainer.Object))).Returns(mockProcessor.Object); - mockProcessor.Setup(x => x.ProcessMessage(It.IsAny(), mockStream.Object)); - _mockConfiguration.Setup(x => x.GetMessageBusReadStream()).Returns(mockStream.Object); - - var message = new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim" - }; - - _mockProducer.Setup(x => x.Send("Source", typeof(StreamResponseMessage), It.IsAny(), It.Is>(y => y["ResponseMessageId"] == "MessageId"))); - - bus.StartConsuming(); - - _fakeEventHandler(Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(message)), typeof(FakeMessage1).AssemblyQualifiedName, new Dictionary - { - { "Start", "" }, - { "SequenceId", Encoding.UTF8.GetBytes("TestSequence") }, - { "SourceAddress", Encoding.UTF8.GetBytes("Source") }, - { "RequestMessageId", Encoding.UTF8.GetBytes("MessageId") }, - { "MessageType", Encoding.UTF8.GetBytes("ByteStream")}, - - }); - - var streamMessage = new byte[]{ 0,1,2,3,4,5,6,7,8,9 }; - - mockStream.Setup(x => x.Write(It.Is(y => streamMessage == y), It.Is(y => y == 1))); - - // Act - _fakeEventHandler(streamMessage, typeof(byte[]).AssemblyQualifiedName, new Dictionary - { - { "SequenceId", Encoding.UTF8.GetBytes("TestSequence") }, - { "SourceAddress", Encoding.UTF8.GetBytes("Source") }, - { "RequestMessageId", Encoding.UTF8.GetBytes("MessageId") }, - { "MessageType", Encoding.UTF8.GetBytes("ByteStream")}, - { "PacketNumber", Encoding.UTF8.GetBytes("1")} - }); - - // Assert - mockStream.Verify(x => x.Write(It.Is(y => streamMessage == y), It.Is(y => y == 1)), Times.Once); - } - - [Fact] - public void ConsumeMessageEventShouldStopStreamIfStopMessageIsRecieved() - { - // Arrange - var bus = new Bus(_mockConfiguration.Object); - - var mockStream = new Mock(); - mockStream.Setup(x => x.HandlerCount).Returns(1); - _mockConsumer.Setup(x => x.StartConsuming(It.IsAny(), It.IsAny>(), It.Is(y => AssignEventHandler(y)), It.IsAny())); - var mockProcessor = new Mock(); - _mockContainer.Setup(x => x.GetInstance(It.Is>(y => y["container"] == _mockContainer.Object))).Returns(mockProcessor.Object); - mockProcessor.Setup(x => x.ProcessMessage(It.IsAny(), mockStream.Object)); - _mockConfiguration.Setup(x => x.GetMessageBusReadStream()).Returns(mockStream.Object); - - var message = new FakeMessage1(Guid.NewGuid()) - { - Username = "Tim" - }; - - _mockProducer.Setup(x => x.Send("Source", typeof(StreamResponseMessage), It.IsAny(), It.Is>(y => y["ResponseMessageId"] == "MessageId"))); - - bus.StartConsuming(); - - _fakeEventHandler(Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(message)), typeof(FakeMessage1).AssemblyQualifiedName, new Dictionary - { - { "Start", "" }, - { "SequenceId", Encoding.UTF8.GetBytes("TestSequence") }, - { "SourceAddress", Encoding.UTF8.GetBytes("Source") }, - { "RequestMessageId", Encoding.UTF8.GetBytes("MessageId") }, - { "MessageType", Encoding.UTF8.GetBytes("ByteStream")}, - - }); - - var streamMessage = new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 }; - - // Act - _fakeEventHandler(streamMessage, typeof(byte[]).AssemblyQualifiedName, new Dictionary - { - { "SequenceId", Encoding.UTF8.GetBytes("TestSequence") }, - { "SourceAddress", Encoding.UTF8.GetBytes("Source") }, - { "RequestMessageId", Encoding.UTF8.GetBytes("MessageId") }, - { "MessageType", Encoding.UTF8.GetBytes("ByteStream")}, - { "PacketNumber", Encoding.UTF8.GetBytes("2")}, - { "Stop", "" } - }); - - // Assert - mockStream.Verify(x => x.Write(It.IsAny(), It.IsAny()), Times.Never); - mockStream.VerifySet(x => x.LastPacketNumber = 2, Times.Once); - } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.UnitTests/Stream/ReadStreamTests.cs b/src/ServiceConnect.UnitTests/Stream/ReadStreamTests.cs deleted file mode 100644 index 764eebf3a..000000000 --- a/src/ServiceConnect.UnitTests/Stream/ReadStreamTests.cs +++ /dev/null @@ -1,132 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using ServiceConnect.Core; -using Xunit; - -namespace ServiceConnect.UnitTests.Stream -{ - public class ReadStreamTests - { - [Fact] - public void ShouldReadPacketAfterWritingToStream() - { - // Arrange - var stream = new MessageBusReadStream(); - var bytes = new byte[10]; - stream.Write(bytes, 1); - - // Act - var result = stream.Read(); - - // Assert - Assert.Equal(bytes, result); - } - - [Fact] - public void ShouldNotReadFromStreamIfPacketNumberHasntYetBeenWritten() - { - // Arrange - var stream = new MessageBusReadStream(); - var bytes = new byte[10]; - stream.Write(bytes, 2); - - // Act - var result = stream.Read(); - - // Assert - Assert.Empty(result); - Assert.NotEqual(bytes, result); - } - - [Fact] - public void IsCompleteShouldReturnTrueIfAllPacketsHaveBeenRead() - { - // Arrange - var stream = new MessageBusReadStream {LastPacketNumber = 3, CompleteEventHandler = CompleteEventHandler}; - var bytes = new byte[10]; - stream.Write(bytes, 1); - stream.Write(bytes, 2); - stream.Read(); - stream.Read(); - - // Act - var result = stream.IsComplete(); - - // Assert - Assert.True(result); - } - - [Fact] - public void IsCompleteShouldReturnFalseIfAllPacketsHaveBeenRead() - { - // Arrange - var stream = new MessageBusReadStream { LastPacketNumber = 3, CompleteEventHandler = CompleteEventHandler }; - var bytes = new byte[10]; - stream.Write(bytes, 1); - stream.Write(bytes, 2); - - // Act - var result = stream.IsComplete(); - - // Assert - Assert.False(result); - } - - private bool _complete; - - [Fact] - public void IsCompleteShouldExecuteCompleteEventHandlerIfAllPacketsHaveBeenRead() - { - // Arrange - var stream = new MessageBusReadStream { LastPacketNumber = 3, CompleteEventHandler = CompleteEventHandler }; - var bytes = new byte[10]; - stream.Write(bytes, 1); - stream.Write(bytes, 2); - stream.Read(); - stream.Read(); - - // Act - stream.IsComplete(); - - // Assert - Assert.True(_complete); - } - - [Fact] - public void IsCompleteShouldNotExecuteCompleteEventHandlerIfAllPacketsHaveBeenRead() - { - // Arrange - var stream = new MessageBusReadStream { LastPacketNumber = 3, CompleteEventHandler = CompleteEventHandler }; - var bytes = new byte[10]; - stream.Write(bytes, 1); - stream.Write(bytes, 2); - stream.Read(); - - // Act - stream.IsComplete(); - - // Assert - Assert.False(_complete); - } - - private void CompleteEventHandler(string sequenceId) - { - _complete = true; - } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.UnitTests/Stream/WriteStreamTests.cs b/src/ServiceConnect.UnitTests/Stream/WriteStreamTests.cs deleted file mode 100644 index 34f6006e9..000000000 --- a/src/ServiceConnect.UnitTests/Stream/WriteStreamTests.cs +++ /dev/null @@ -1,142 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; -using System.Linq; -using System.Runtime.InteropServices; -using Moq; -using ServiceConnect.Core; -using ServiceConnect.Interfaces; -using Xunit; - -namespace ServiceConnect.UnitTests.Stream -{ - public class WriteStreamTests - { - [DllImport("msvcrt.dll", CallingConvention = CallingConvention.Cdecl)] - static extern int memcmp(byte[] b1, byte[] b2, long count); - - private readonly Mock _producer; - private Mock _mockConfigurtaion; - - public WriteStreamTests() - { - _producer = new Mock(); - _mockConfigurtaion = new Mock(); - } - - [Fact] - public void WriteShouldSplitByteArrayIntoPacketsAndSendToEndpoint() - { - // Arrange - _producer.Setup(x => x.MaximumMessageSize).Returns(10); - var stream = new MessageBusWriteStream(_producer.Object, "TestEndpoint", "TestSequence", _mockConfigurtaion.Object); - - var byteArray = new byte[20]; - for (int i = 0; i < byteArray.Length; i++) - { - byteArray[i] = Convert.ToByte(i); - } - - var packet1 = new byte[10]; - for (int i = 0; i < packet1.Length; i++) - { - packet1[i] = Convert.ToByte(i); - } - - var packet2 = new byte[10]; - for (int i = 0; i < packet2.Length; i++) - { - packet2[i] = Convert.ToByte(i + 10); - } - - // Act - stream.Write(byteArray, 0, byteArray.Length); - - // Assert - _producer.Verify(x => x.SendBytes("TestEndpoint", It.Is(y => CompareByteArrays(y, packet1)), It.IsAny>())); - _producer.Verify(x => x.SendBytes("TestEndpoint", It.Is(y => CompareByteArrays(y, packet2)), It.IsAny>())); - } - - public bool CompareByteArrays(byte[] b1, byte[] b2) - { - return b1.Length == b2.Length && memcmp(b1, b2, b1.Length) == 0; - } - - [Fact] - public void WriteShouldSendTheSameSequenceNumberWithEachPacket() - { - // Arrange - _producer.Setup(x => x.MaximumMessageSize).Returns(10); - var stream = new MessageBusWriteStream(_producer.Object, "TestEndpoint", "TestSequence", _mockConfigurtaion.Object); - - var byteArray = new byte[20]; - - // Act - stream.Write(byteArray, 0, byteArray.Length); - - // Assert - _producer.Verify(x => x.SendBytes("TestEndpoint", It.IsAny(), It.Is>(y => y["SequenceId"] == "TestSequence"))); - _producer.Verify(x => x.SendBytes("TestEndpoint", It.IsAny(), It.Is>(y => y["SequenceId"] == "TestSequence"))); - } - - [Fact] - public void WriteShouldIncrementPacketsSentNumberWhenSendingPacketToEndpoint() - { - // Arrange - _producer.Setup(x => x.MaximumMessageSize).Returns(10); - var stream = new MessageBusWriteStream(_producer.Object, "TestEndpoint", "TestSequence", _mockConfigurtaion.Object); - - var byteArray = new byte[20]; - - // Act - stream.Write(byteArray, 0, byteArray.Length); - - // Assert - _producer.Verify(x => x.SendBytes("TestEndpoint", It.IsAny(), It.Is>(y => y["PacketNumber"] == "1"))); - _producer.Verify(x => x.SendBytes("TestEndpoint", It.IsAny(), It.Is>(y => y["PacketNumber"] == "2"))); - } - - [Fact] - public void CloseShouldSendAStopMessageToEndpoint() - { - // Arrange - _producer.Setup(x => x.MaximumMessageSize).Returns(10); - var stream = new MessageBusWriteStream(_producer.Object, "TestEndpoint", "TestSequence", _mockConfigurtaion.Object); - - // Act - stream.Close(); - - // Assert - _producer.Verify(x => x.SendBytes("TestEndpoint", It.Is(y => y.Length == 0), It.Is>(y => y.ContainsKey("Stop")))); - } - - [Fact] - public void DisposeShouldSendAStopMessageToEndpoint() - { - // Arrange - _producer.Setup(x => x.MaximumMessageSize).Returns(10); - var stream = new MessageBusWriteStream(_producer.Object, "TestEndpoint", "TestSequence", _mockConfigurtaion.Object); - - // Act - stream.Dispose(); - - // Assert - _producer.Verify(x => x.SendBytes("TestEndpoint", It.Is(y => y.Length == 0), It.Is>(y => y.ContainsKey("Stop")))); - } - } -} \ No newline at end of file diff --git a/src/ServiceConnect.UnitTests/Telemetry/RabbitMqMessagingSystemAttributesTests.cs b/src/ServiceConnect.UnitTests/Telemetry/RabbitMqMessagingSystemAttributesTests.cs new file mode 100644 index 000000000..49a93eae8 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Telemetry/RabbitMqMessagingSystemAttributesTests.cs @@ -0,0 +1,24 @@ +using Moq; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Telemetry; +using Xunit; + +namespace ServiceConnect.UnitTests.Telemetry; + +public sealed class RabbitMqMessagingSystemAttributesTests +{ + [Theory] + [InlineData("rabbit1", "rabbit1")] + [InlineData("rabbit1,rabbit2", "rabbit1")] + [InlineData("rabbit1;rabbit2", "rabbit1;rabbit2")] // transport treats semicolon as part of hostname + [InlineData(" rabbit1 , rabbit2 ", "rabbit1")] + [InlineData("", "")] + public void ServerAddress_HandlesClusterListSeparators(string host, string expected) + { + var transport = new Mock(); + transport.SetupGet(t => t.Host).Returns(host); + transport.SetupGet(t => t.ClientSettings).Returns(new Dictionary()); + var attrs = new RabbitMqMessagingSystemAttributes(transport.Object); + Assert.Equal(expected, attrs.ServerAddress); + } +} diff --git a/src/ServiceConnect.UnitTests/Telemetry/ServiceConnectActivitySourceMalformedTraceparentTests.cs b/src/ServiceConnect.UnitTests/Telemetry/ServiceConnectActivitySourceMalformedTraceparentTests.cs new file mode 100644 index 000000000..c09dcc4db --- /dev/null +++ b/src/ServiceConnect.UnitTests/Telemetry/ServiceConnectActivitySourceMalformedTraceparentTests.cs @@ -0,0 +1,167 @@ +using System.Diagnostics; +using System.Text; +using ServiceConnect.Interfaces; +using ServiceConnect.Telemetry; +using Xunit; + +namespace ServiceConnect.UnitTests.Telemetry; + +[Collection("ActivityListener")] +public sealed class ServiceConnectActivitySourceMalformedTraceparentTests : IDisposable +{ + private readonly ActivityListener _listener; + private readonly ServiceConnectInstrumentationOptions _options = new(); + private readonly IMessagingSystemAttributes _attrs = new StubAttributes(); + + public ServiceConnectActivitySourceMalformedTraceparentTests() + { + _listener = new ActivityListener + { + ShouldListenTo = src => src.Name == ServiceConnectActivitySource.ActivitySourceName, + Sample = (ref ActivityCreationOptions _) => ActivitySamplingResult.AllData, + SampleUsingParentId = (ref ActivityCreationOptions _) => ActivitySamplingResult.AllData + }; + ActivitySource.AddActivityListener(_listener); + } + + public void Dispose() + { + _listener.Dispose(); + } + + [Fact] + public void Consume_WithMalformedTraceparent_ForcesFreshTraceRoot_AndStampsDiagnosticTag() + { + // Simulate a hosted environment that has an unrelated ambient activity wrapping the + // consume loop (e.g. an ASP.NET request span, a host worker activity). A poisoned + // producer that injects a malformed traceparent must NOT cause the consume span to + // be parented onto this ambient host activity — that would produce a stitched-but- + // wrong trace graph pointing at the wrong producer. + using var ambientSource = new ActivitySource("Test.Ambient.Source"); + using var ambientListener = new ActivityListener + { + ShouldListenTo = src => src.Name == "Test.Ambient.Source", + Sample = (ref ActivityCreationOptions _) => ActivitySamplingResult.AllData, + SampleUsingParentId = (ref ActivityCreationOptions _) => ActivitySamplingResult.AllData + }; + ActivitySource.AddActivityListener(ambientListener); + + using var ambient = ambientSource.StartActivity("ambient", ActivityKind.Internal); + Assert.NotNull(ambient); + Assert.NotNull(Activity.Current); + var ambientTraceId = Activity.Current!.TraceId; + + var args = new ConsumeEventArgs + { + Headers = new Dictionary + { + // Malformed: not a W3C traceparent. The header is present, but + // ActivityContext.TryParse will return false. + ["traceparent"] = Encoding.UTF8.GetBytes("NOT-VALID"), + } + }; + + using var activity = ServiceConnectActivitySource.Consume(args, _options, _attrs); + + Assert.NotNull(activity); + // Fresh root — the consume span must not inherit the ambient host activity's trace. + Assert.NotEqual(ambientTraceId, activity!.TraceId); + // Diagnostic tag so operators can search/filter for poisoned producers. + Assert.Equal(true, activity.GetTagItem("enrichment.malformed_traceparent")); + } + + [Fact] + public void Publish_AfterMalformedTraceparentConsume_InheritsFreshRoot_NotAmbient() + { + // After Consume() forces a fresh trace root because of a malformed inbound + // traceparent, Activity.Current must be the fresh consume span (not the host + // ambient) for the rest of the consume-side flow. The middleware then runs the + // user's handler under this ambient, and any Bus.Publish / Bus.Send issued from + // the handler reads Activity.Current to stamp the outbound traceparent. If the + // ambient leaks back here, the outbound trace inherits the host ambient — the + // exact stitching the fresh-root forcing was meant to prevent. + using var ambientSource = new ActivitySource("Test.Ambient.Source"); + using var ambientListener = new ActivityListener + { + ShouldListenTo = src => src.Name == "Test.Ambient.Source", + Sample = (ref ActivityCreationOptions _) => ActivitySamplingResult.AllData, + SampleUsingParentId = (ref ActivityCreationOptions _) => ActivitySamplingResult.AllData + }; + ActivitySource.AddActivityListener(ambientListener); + + using var ambient = ambientSource.StartActivity("ambient", ActivityKind.Internal); + Assert.NotNull(ambient); + Assert.Equal(ambient, Activity.Current); + var ambientTraceId = ambient!.TraceId; + + var consumeArgs = new ConsumeEventArgs + { + Headers = new Dictionary + { + ["traceparent"] = Encoding.UTF8.GetBytes("NOT-VALID"), + } + }; + + using var consumeSpan = ServiceConnectActivitySource.Consume(consumeArgs, _options, _attrs); + Assert.NotNull(consumeSpan); + // The consume span is a fresh root — its TraceId differs from the ambient's. + Assert.NotEqual(ambientTraceId, consumeSpan!.TraceId); + // CRITICAL: Activity.Current must now be the fresh consume span, not the ambient. + // The middleware will run the user's handler under this ambient and a Publish + // from inside the handler must inherit this trace, not the host ambient. + Assert.Equal(consumeSpan, Activity.Current); + + // Simulate a Publish issued from inside the handler. With Activity.Current set to + // the fresh consume root, the publish span must be parented onto the consume span + // and share its TraceId — not the ambient host's. + var publishArgs = new PublishEventArgs + { + Exchange = "downstream", + Message = new Message(Guid.NewGuid()), + }; + using var publishSpan = ServiceConnectActivitySource.Publish(publishArgs, _options, _attrs); + + Assert.NotNull(publishSpan); + Assert.Equal(consumeSpan.TraceId, publishSpan!.TraceId); + Assert.NotEqual(ambientTraceId, publishSpan.TraceId); + } + + [Fact] + public void Consume_WithNoTraceparent_DoesNotStampMalformedTag_AndInheritsAmbient() + { + // Sanity check the unchanged path: a missing traceparent header should still + // fall through to Activity.Current (the existing ambient-link behaviour) and + // must NOT be flagged as malformed. + using var ambientSource = new ActivitySource("Test.Ambient.Source"); + using var ambientListener = new ActivityListener + { + ShouldListenTo = src => src.Name == "Test.Ambient.Source", + Sample = (ref ActivityCreationOptions _) => ActivitySamplingResult.AllData, + SampleUsingParentId = (ref ActivityCreationOptions _) => ActivitySamplingResult.AllData + }; + ActivitySource.AddActivityListener(ambientListener); + + using var ambient = ambientSource.StartActivity("ambient", ActivityKind.Internal); + Assert.NotNull(ambient); + var ambientTraceId = Activity.Current!.TraceId; + + var args = new ConsumeEventArgs + { + // No traceparent header at all. + Headers = new Dictionary(), + }; + + using var activity = ServiceConnectActivitySource.Consume(args, _options, _attrs); + + Assert.NotNull(activity); + // Inherits ambient because no inbound traceparent steered it elsewhere. + Assert.Equal(ambientTraceId, activity!.TraceId); + Assert.Null(activity.GetTagItem("enrichment.malformed_traceparent")); + } + + private sealed class StubAttributes : IMessagingSystemAttributes + { + public string MessagingSystem => "test"; + public string ProtocolName => "test"; + } +} diff --git a/src/ServiceConnect.UnitTests/Telemetry/ServiceConnectActivitySourceTests.cs b/src/ServiceConnect.UnitTests/Telemetry/ServiceConnectActivitySourceTests.cs new file mode 100644 index 000000000..b26d721d0 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Telemetry/ServiceConnectActivitySourceTests.cs @@ -0,0 +1,1399 @@ +using System.Diagnostics; +using System.Text; +using ServiceConnect.Interfaces; +using ServiceConnect.Telemetry; +using Xunit; +using static ServiceConnect.Telemetry.MessagingAttributes; + +namespace ServiceConnect.UnitTests.Telemetry; + +[CollectionDefinition("ActivityListener", DisableParallelization = true)] +public class ActivityListenerCollection { } + +[Collection("ActivityListener")] +public sealed class ServiceConnectActivitySourceTests : IDisposable +{ + private readonly ActivityListener _listener; + private readonly ServiceConnectInstrumentationOptions _options = new(); + private readonly IMessagingSystemAttributes _attrs = new RabbitMqMessagingSystemAttributes(); + + public ServiceConnectActivitySourceTests() + { + _listener = new ActivityListener + { + ShouldListenTo = src => src.Name == ServiceConnectActivitySource.ActivitySourceName, + Sample = (ref ActivityCreationOptions _) => ActivitySamplingResult.AllData, + SampleUsingParentId = (ref ActivityCreationOptions _) => ActivitySamplingResult.AllData + }; + ActivitySource.AddActivityListener(_listener); + } + + public void Dispose() + { + // Reset user-configurable enrichers in case a test set them. + _options.EnrichWithMessage = null; + _options.EnrichWithMessageBytes = null; + _options.EnablePublishTelemetry = true; + _options.EnableConsumeTelemetry = true; + _options.EnableSendTelemetry = true; + _listener.Dispose(); + } + + // ---------------- Publish ---------------- + + [Fact] + public void Publish_WithExchange_SetsNamedDestinationAndDisplayName() + { + var args = new PublishEventArgs + { + Exchange = "orders", + Message = new Message(Guid.NewGuid()), + Headers = { ["MessageId"] = "msg-1" } + }; + + using var activity = ServiceConnectActivitySource.Publish(args, _options, _attrs); + + Assert.NotNull(activity); + Assert.Equal("orders publish", activity!.DisplayName); + Assert.Equal("orders", activity.GetTagItem(MessagingDestination)); + Assert.Equal("rabbitmq", activity.GetTagItem(MessagingSystem)); + Assert.Equal("publish", activity.GetTagItem(MessagingOperationType)); + Assert.Equal("publish", activity.GetTagItem(MessagingOperationName)); + Assert.Equal("msg-1", activity.GetTagItem(MessageId)); + } + + [Fact] + public void Publish_WithExchangeAndRoutingKey_StampsExchangeAsDestinationAndRoutingKeySeparately() + { + // OTel messaging semconv (RabbitMQ): messaging.destination.name carries the exchange + // name; messaging.rabbitmq.destination.routing_key carries the routing key. Stamping + // the routing key onto both attributes broke dashboards keyed on destination. + var args = new PublishEventArgs + { + Exchange = "OrderPlaced", + RoutingKey = "high-priority", + Message = new Message(Guid.NewGuid()), + Headers = { ["MessageId"] = "msg-1" } + }; + + using var activity = ServiceConnectActivitySource.Publish(args, _options, _attrs); + + Assert.NotNull(activity); + Assert.Equal("OrderPlaced publish", activity!.DisplayName); + Assert.Equal("OrderPlaced", activity.GetTagItem(MessagingDestination)); + Assert.Equal("high-priority", activity.GetTagItem(MessagingDestinationRoutingKey)); + // Explicit negative assertion: the routing key must not also appear on the + // destination-name tag. The exchange assertion above usually catches a regression, + // but a contrived case where exchange == routing-key would mask it. + Assert.NotEqual("high-priority", activity.GetTagItem(MessagingDestination)); + } + + [Fact] + public void Publish_WithExchangeOnlyAndEmptyRoutingKey_OmitsRoutingKeyTag() + { + // RabbitMQ fanout publish — exchange is the type-derived name and routing key is empty. + // The destination-name tag must be the exchange; the routing-key tag must not be set. + var args = new PublishEventArgs + { + Exchange = "OrderPlaced", + RoutingKey = "", + Message = new Message(Guid.NewGuid()), + }; + + using var activity = ServiceConnectActivitySource.Publish(args, _options, _attrs); + + Assert.NotNull(activity); + Assert.Equal("OrderPlaced publish", activity!.DisplayName); + Assert.Equal("OrderPlaced", activity.GetTagItem(MessagingDestination)); + Assert.Null(activity.GetTagItem(MessagingDestinationRoutingKey)); + } + + [Fact] + public void Publish_WithEmptyExchange_MarksDestinationAnonymous() + { + var args = new PublishEventArgs + { + Exchange = "", + RoutingKey = "", + Message = new Message(Guid.NewGuid()) + }; + + using var activity = ServiceConnectActivitySource.Publish(args, _options, _attrs); + + Assert.NotNull(activity); + Assert.Equal("anonymous publish", activity!.DisplayName); + Assert.Equal(true, activity.GetTagItem(MessagingDestinationAnonymous)); + Assert.Null(activity.GetTagItem(MessagingDestination)); + } + + [Fact] + public void Publish_EnricherThrows_RecordsEnrichmentException() + { + var options = new ServiceConnectInstrumentationOptions + { + EnrichWithMessage = (_, _) => throw new InvalidOperationException("boom") + }; + + var args = new PublishEventArgs + { + Exchange = "orders", + Message = new Message(Guid.NewGuid()) + }; + + using var activity = ServiceConnectActivitySource.Publish(args, options, _attrs); + + Assert.NotNull(activity); + Assert.Equal("System.InvalidOperationException", activity!.GetTagItem("enrichment.exception")); + } + + [Fact] + public void Publish_WhenTelemetryDisabled_ReturnsNull() + { + var options = new ServiceConnectInstrumentationOptions { EnablePublishTelemetry = false }; + + var args = new PublishEventArgs + { + Exchange = "orders", + Message = new Message(Guid.NewGuid()) + }; + + using var activity = ServiceConnectActivitySource.Publish(args, options, _attrs); + + Assert.Null(activity); + } + + [Fact] + public void Publish_InjectsTraceparent_IntoOutgoingHeaders() + { + var args = new PublishEventArgs + { + Exchange = "orders", + Message = new Message(Guid.NewGuid()) + }; + + using var activity = ServiceConnectActivitySource.Publish(args, _options, _attrs); + + Assert.NotNull(activity); + Assert.True(args.Headers.TryGetValue("traceparent", out var traceparent)); + // W3C traceparent: 00-<32 hex>-<16 hex>-<2 hex> + Assert.Matches("^00-[0-9a-f]{32}-[0-9a-f]{16}-[0-9a-f]{2}$", traceparent); + // The injected traceparent must carry the started activity's trace/span ids + // so downstream consumers link to this publish. + Assert.Contains(activity!.TraceId.ToString(), traceparent); + Assert.Contains(activity.SpanId.ToString(), traceparent); + } + + // Companion: Publish_WhenPublishTelemetryDisabled_StillInjectsTraceparentFromAmbient covers the case where an ambient span IS present. + [Fact] + public void Publish_WhenTelemetryDisabled_AndNoAmbientActivity_DoesNotTouchHeaders() + { + var options = new ServiceConnectInstrumentationOptions { EnablePublishTelemetry = false }; + + var args = new PublishEventArgs + { + Exchange = "orders", + Message = new Message(Guid.NewGuid()) + }; + + using var activity = ServiceConnectActivitySource.Publish(args, options, _attrs); + + Assert.Null(activity); + Assert.False(args.Headers.ContainsKey("traceparent")); + } + + // ---------------- Consume ---------------- + + [Fact] + public void Consume_SetsMessagingTags_AndDestinationFromHeader() + { + var args = new ConsumeEventArgs + { + Message = [1, 2, 3], + Headers = new Dictionary + { + ["DestinationAddress"] = Encoding.UTF8.GetBytes("svc.inbox"), + ["MessageId"] = Encoding.UTF8.GetBytes("msg-42") + } + }; + + using var activity = ServiceConnectActivitySource.Consume(args, _options, _attrs); + + Assert.NotNull(activity); + Assert.Equal("svc.inbox process", activity!.DisplayName); + Assert.Equal("svc.inbox", activity.GetTagItem(MessagingDestination)); + Assert.Equal("msg-42", activity.GetTagItem(MessageId)); + Assert.Equal("rabbitmq", activity.GetTagItem(MessagingSystem)); + Assert.Equal("process", activity.GetTagItem(MessagingOperationType)); + Assert.Equal("process", activity.GetTagItem(MessagingOperationName)); + Assert.Equal(3, activity.GetTagItem(MessagingBodySize)); + } + + [Fact] + public void Consume_WithoutDestinationHeader_MarksAnonymous() + { + var args = new ConsumeEventArgs + { + Message = [], + Headers = new Dictionary() + }; + + using var activity = ServiceConnectActivitySource.Consume(args, _options, _attrs); + + Assert.NotNull(activity); + Assert.Equal("anonymous process", activity!.DisplayName); + Assert.Equal(true, activity.GetTagItem(MessagingDestinationAnonymous)); + } + + [Fact] + public void Consume_ExtractsParentContext_FromTraceparentHeader() + { + // Build a valid W3C traceparent: 00-<32 hex traceId>-<16 hex spanId>-01 + var traceId = "0af7651916cd43dd8448eb211c80319c"; + var spanId = "b7ad6b7169203331"; + var traceparent = $"00-{traceId}-{spanId}-01"; + + var args = new ConsumeEventArgs + { + Headers = new Dictionary + { + ["traceparent"] = Encoding.UTF8.GetBytes(traceparent) + } + }; + + using var activity = ServiceConnectActivitySource.Consume(args, _options, _attrs); + + Assert.NotNull(activity); + Assert.Equal(traceId, activity!.TraceId.ToString()); + Assert.Equal(spanId, activity.ParentSpanId.ToString()); + } + + [Fact] + public void Consume_ExtractsParentContext_WhenHeadersAreReadOnlyDictionary() + { + // ExtractTraceIdAndState must accept any IReadOnlyDictionary shape so + // traceparent/tracestate are picked up even when ConsumeContext.Headers + // is wrapped as a ReadOnlyDictionary. Otherwise consumes would orphan + // each span as a new trace root instead of continuing the caller's trace. + var traceId = "0af7651916cd43dd8448eb211c80319c"; + var spanId = "b7ad6b7169203331"; + var inner = new Dictionary + { + ["traceparent"] = Encoding.UTF8.GetBytes($"00-{traceId}-{spanId}-01"), + }; + + var args = new ConsumeEventArgs + { + Headers = new System.Collections.ObjectModel.ReadOnlyDictionary(inner), + }; + + using var activity = ServiceConnectActivitySource.Consume(args, _options, _attrs); + + Assert.NotNull(activity); + Assert.Equal(traceId, activity!.TraceId.ToString()); + Assert.Equal(spanId, activity.ParentSpanId.ToString()); + } + + [Fact] + public void Consume_WhenTelemetryDisabled_ReturnsNull() + { + var options = new ServiceConnectInstrumentationOptions { EnableConsumeTelemetry = false }; + + var args = new ConsumeEventArgs + { + Headers = new Dictionary() + }; + + using var activity = ServiceConnectActivitySource.Consume(args, options, _attrs); + + Assert.Null(activity); + } + + [Fact] + public void Consume_SetsMessagingMessageConversationId_FromCorrelationIdHeader() + { + var correlationId = Guid.NewGuid().ToString(); + var args = new ConsumeEventArgs + { + Headers = new Dictionary + { + [HeaderKeys.CorrelationId] = Encoding.UTF8.GetBytes(correlationId), + [HeaderKeys.DestinationAddress] = Encoding.UTF8.GetBytes("queue-a"), + }, + Message = [1, 2, 3], + }; + + using var activity = ServiceConnectActivitySource.Consume(args, _options, _attrs); + + Assert.NotNull(activity); + Assert.Equal(correlationId, activity!.GetTagItem(MessageConversationId)); + } + + // ---------------- server.address / server.port ---------------- + + [Fact] + public void Publish_WithServerAddress_StampsServerAddressAndPortTags() + { + // Attributes that supply a real broker address must surface server.address and + // server.port so OTel backends can correlate spans across broker nodes. + var attrsWithEndpoint = new RabbitMqMessagingSystemAttributes( + new StubTransport { Host = "rabbit.internal", Port = 5672 }); + + var args = new PublishEventArgs + { + Exchange = "orders", + Message = new Message(Guid.NewGuid()), + }; + + using var activity = ServiceConnectActivitySource.Publish(args, _options, attrsWithEndpoint); + + Assert.NotNull(activity); + Assert.Equal("rabbit.internal", activity!.GetTagItem(MessagingAttributes.ServerAddress)); + Assert.Equal(5672, activity.GetTagItem(MessagingAttributes.ServerPort)); + } + + [Fact] + public void Consume_WithServerAddress_StampsServerAddressAndPortTags() + { + var attrsWithEndpoint = new RabbitMqMessagingSystemAttributes( + new StubTransport { Host = "rabbit.internal", Port = 5672 }); + + var args = new ConsumeEventArgs + { + Message = [1, 2, 3], + Headers = new Dictionary + { + [HeaderKeys.DestinationAddress] = System.Text.Encoding.UTF8.GetBytes("svc.inbox"), + } + }; + + using var activity = ServiceConnectActivitySource.Consume(args, _options, attrsWithEndpoint); + + Assert.NotNull(activity); + Assert.Equal("rabbit.internal", activity!.GetTagItem(MessagingAttributes.ServerAddress)); + Assert.Equal(5672, activity.GetTagItem(MessagingAttributes.ServerPort)); + } + + [Fact] + public void Send_WithServerAddress_StampsServerAddressAndPortTags() + { + var attrsWithEndpoint = new RabbitMqMessagingSystemAttributes( + new StubTransport { Host = "rabbit.internal", Port = 5672 }); + + var args = new SendEventArgs + { + EndPoint = "svc.queue", + Message = new Message(Guid.NewGuid()), + }; + + using var activity = ServiceConnectActivitySource.Send(args, _options, attrsWithEndpoint); + + Assert.NotNull(activity); + Assert.Equal("rabbit.internal", activity!.GetTagItem(MessagingAttributes.ServerAddress)); + Assert.Equal(5672, activity.GetTagItem(MessagingAttributes.ServerPort)); + } + + [Fact] + public void Publish_WithDefaultAttributes_OmitsServerAddressAndPortTags() + { + // When ServerAddress is empty and ServerPort is 0 (default impl values), + // the tags must not be emitted rather than emitting empty-string / 0. + var args = new PublishEventArgs + { + Exchange = "orders", + Message = new Message(Guid.NewGuid()), + }; + + using var activity = ServiceConnectActivitySource.Publish(args, _options, _attrs); + + Assert.NotNull(activity); + Assert.Null(activity!.GetTagItem(MessagingAttributes.ServerAddress)); + Assert.Null(activity.GetTagItem(MessagingAttributes.ServerPort)); + } + + [Fact] + public void RabbitMqAttributes_MultiHostString_UsesFirstHost() + { + // Cluster host strings like "rabbit1,rabbit2" must emit only the first entry as + // server.address, matching the single-value OTel semconv expectation. + var attrs = new RabbitMqMessagingSystemAttributes( + new StubTransport { Host = "rabbit1,rabbit2", Port = 5672 }); + + Assert.Equal("rabbit1", attrs.ServerAddress); + } + + [Fact] + public void Consume_OperationType_IsProcess_NotReceive() + { + // Consume spans represent handler dispatch ("process"), not broker polling ("receive"). + var args = new ConsumeEventArgs + { + Message = [1], + Headers = new Dictionary + { + [HeaderKeys.DestinationAddress] = System.Text.Encoding.UTF8.GetBytes("queue-a"), + } + }; + + using var activity = ServiceConnectActivitySource.Consume(args, _options, _attrs); + + Assert.NotNull(activity); + Assert.Equal("process", activity!.GetTagItem(MessagingOperationType)); + Assert.Equal("process", activity.GetTagItem(MessagingOperationName)); + } + + // Stub transport used in server-address/port tests. + private sealed class StubTransport : ServiceConnect.Interfaces.Configuration.ITransportConfiguration + { + private readonly Dictionary _settings = []; + + public required string Host { get; set; } + public string? Username { get; set; } + public string? Password { get; set; } + public string? VirtualHost { get; set; } + public int RetryDelay { get; set; } + public int MaxRetries { get; set; } + public ushort PrefetchCount { get; set; } + public int GracefulShutdownTimeoutMilliseconds { get; set; } + public bool SslEnabled { get; set; } + public bool SuppressPlaintextWarning { get; set; } + public System.Net.Security.SslPolicyErrors AcceptablePolicyErrors { get; set; } + public string? ServerName { get; set; } + public string? CertPath { get; set; } + public string? CertPassphrase { get; set; } + public System.Security.Cryptography.X509Certificates.X509CertificateCollection? Certs { get; set; } + public System.Security.Authentication.SslProtocols SslProtocol { get; set; } + public System.Net.Security.LocalCertificateSelectionCallback? CertificateSelectionCallback { get; set; } + public System.Net.Security.RemoteCertificateValidationCallback? CertificateValidationCallback { get; set; } + public IReadOnlyDictionary ClientSettings => _settings; + public void SetClientSetting(string key, object value) => _settings[key] = value; + + // Convenience setter: routes the port into ClientSettings["Port"] where + // RabbitMqMessagingSystemAttributes reads it. + public int Port + { + get => _settings.TryGetValue("Port", out var v) ? Convert.ToInt32(v) : 0; + set => _settings["Port"] = value; + } + } + + // ---------------- Send ---------------- + + [Fact] + public void Send_WithEndpoint_SetsNamedDestination() + { + var args = new SendEventArgs + { + EndPoint = "svc.queue", + Message = new Message(Guid.NewGuid()) + }; + + using var activity = ServiceConnectActivitySource.Send(args, _options, _attrs); + + Assert.NotNull(activity); + // The DisplayName carries "send" for per-destination tracing; the messaging.operation.type + // tag is "publish" per OTel semconv (producer-side regardless of point-to-point vs pub/sub). + Assert.Equal("svc.queue send", activity!.DisplayName); + Assert.Equal("publish", activity.GetTagItem(MessagingOperationType)); + Assert.Equal("publish", activity.GetTagItem(MessagingOperationName)); + Assert.Equal("svc.queue", activity.GetTagItem(MessagingDestination)); + } + + [Fact] + public void Send_WithoutEndpoint_MarksAnonymous() + { + var args = new SendEventArgs + { + EndPoint = "", + Message = new Message(Guid.NewGuid()) + }; + + using var activity = ServiceConnectActivitySource.Send(args, _options, _attrs); + + Assert.NotNull(activity); + Assert.Equal("anonymous send", activity!.DisplayName); + Assert.Equal(true, activity.GetTagItem(MessagingDestinationAnonymous)); + } + + [Fact] + public void Send_WhenTelemetryDisabled_ReturnsNull() + { + var options = new ServiceConnectInstrumentationOptions { EnableSendTelemetry = false }; + + var args = new SendEventArgs + { + EndPoint = "svc.queue", + Message = new Message(Guid.NewGuid()) + }; + + using var activity = ServiceConnectActivitySource.Send(args, options, _attrs); + + Assert.Null(activity); + } + + [Fact] + public void Send_InjectsTraceparent_IntoOutgoingHeaders() + { + var args = new SendEventArgs + { + EndPoint = "svc.queue", + Message = new Message(Guid.NewGuid()) + }; + + using var activity = ServiceConnectActivitySource.Send(args, _options, _attrs); + + Assert.NotNull(activity); + Assert.True(args.Headers.TryGetValue("traceparent", out var traceparent)); + Assert.Matches("^00-[0-9a-f]{32}-[0-9a-f]{16}-[0-9a-f]{2}$", traceparent); + Assert.Contains(activity!.TraceId.ToString(), traceparent); + Assert.Contains(activity.SpanId.ToString(), traceparent); + } + + [Fact] + public void Send_WithNullMessage_StillInjectsTraceparentHeader() + { + // Send must inject traceparent even when Message is null so that + // payload-less sends still propagate W3C context across the broker. + var args = new SendEventArgs + { + EndPoint = "svc.queue", + Message = null + }; + + using var activity = ServiceConnectActivitySource.Send(args, _options, _attrs); + + // With an active listener the call starts an activity, making + // Activity.Current non-null, so traceparent must be present. + Assert.True(args.Headers.ContainsKey("traceparent")); + } + + [Fact] + public void Publish_WhenPublishTelemetryDisabled_StillInjectsTraceparentFromAmbient() + { + // An outer (e.g. ASP.NET) ambient activity must propagate across the broker + // even when ServiceConnect's own Publish spans are disabled. + var options = new ServiceConnectInstrumentationOptions { EnablePublishTelemetry = false }; + + // The existing listener (set up in the constructor) listens to ServiceConnect + // sources; we need a separate listener for the ambient "ambient" source. + using var ambientListener = new ActivityListener + { + ShouldListenTo = s => s.Name == "ambient", + Sample = (ref ActivityCreationOptions _) => ActivitySamplingResult.AllData, + }; + ActivitySource.AddActivityListener(ambientListener); + + using var outerActivity = new ActivitySource("ambient").StartActivity("outer", ActivityKind.Server); + Assert.NotNull(outerActivity); // Sanity: outer activity must be non-null to make Activity.Current non-null. + + var args = new PublishEventArgs { Exchange = "orders" }; + using var scActivity = ServiceConnectActivitySource.Publish(args, options, _attrs); + + Assert.Null(scActivity); // SC telemetry disabled → no SC span + Assert.True(args.Headers.ContainsKey("traceparent")); // ambient context must be injected + } + + [Fact] + public void Send_WhenSendTelemetryDisabled_StillInjectsTraceparentFromAmbient() + { + // Send variant: symmetric to the Publish variant above. + var options = new ServiceConnectInstrumentationOptions { EnableSendTelemetry = false }; + + using var ambientListener = new ActivityListener + { + ShouldListenTo = s => s.Name == "ambient-send", + Sample = (ref ActivityCreationOptions _) => ActivitySamplingResult.AllData, + }; + ActivitySource.AddActivityListener(ambientListener); + + using var outerActivity = new ActivitySource("ambient-send").StartActivity("outer", ActivityKind.Server); + Assert.NotNull(outerActivity); + + var args = new SendEventArgs { EndPoint = "svc.queue" }; + using var scActivity = ServiceConnectActivitySource.Send(args, options, _attrs); + + Assert.Null(scActivity); // SC telemetry disabled → no SC span + Assert.True(args.Headers.ContainsKey("traceparent")); // ambient context must be injected + } + + // ---------------- SetError ---------------- + + [Fact] + public void SetError_SetsActivityStatusToError_AndRecordsExceptionDetails() + { + // SetError must mark the activity as Error and attach exception metadata so + // OTel backends surface it in error-rate dashboards. + // AddException records details as an ActivityEvent named "exception", not as + // activity-level tags, which is why we inspect Events rather than GetTagItem. + var args = new PublishEventArgs { Exchange = "orders", Message = new Message(Guid.NewGuid()) }; + using var activity = ServiceConnectActivitySource.Publish(args, _options, _attrs); + Assert.NotNull(activity); + + var ex = new InvalidOperationException("publish failed"); + ServiceConnectActivitySource.SetError(activity, ex, _options); + + Assert.Equal(ActivityStatusCode.Error, activity!.Status); + // SetStatus(Error, message) populates StatusDescription with the exception message. + Assert.Equal(ex.Message, activity.StatusDescription); + + var exceptionEvent = activity.Events.FirstOrDefault(e => e.Name == "exception"); + Assert.NotEqual(default, exceptionEvent); + var exTypeTag = exceptionEvent.Tags.FirstOrDefault(t => t.Key == "exception.type").Value?.ToString(); + Assert.Equal(typeof(InvalidOperationException).FullName, exTypeTag); + // exception.message must match so error-rate dashboards show the right message. + var exMessageTag = exceptionEvent.Tags.FirstOrDefault(t => t.Key == "exception.message").Value?.ToString(); + Assert.Equal(ex.Message, exMessageTag); + // exception.stacktrace must be present (exact format is BCL-defined, so only check non-null). + var exStackTag = exceptionEvent.Tags.FirstOrDefault(t => t.Key == "exception.stacktrace").Value?.ToString(); + Assert.NotNull(exStackTag); + } + + [Fact] + public void SetError_WithNullActivity_IsNoOp() + { + // SetError must not throw when called with a null activity (e.g. telemetry disabled). + var ex = new InvalidOperationException("oops"); + var exception = Record.Exception(() => ServiceConnectActivitySource.SetError(null, ex, _options)); + Assert.Null(exception); + } + + // ---------------- TryGetExistingContext ---------------- + + [Fact] + public void TryGetExistingContext_WithTraceparent_ReturnsTrue_AndParsesContext() + { + var traceId = "0af7651916cd43dd8448eb211c80319c"; + var spanId = "b7ad6b7169203331"; + var headers = new Dictionary + { + ["traceparent"] = $"00-{traceId}-{spanId}-01" + }; + + var ok = ServiceConnectActivitySource.TryGetExistingContext(headers, out var ctx); + + Assert.True(ok); + Assert.Equal(traceId, ctx.TraceId.ToString()); + Assert.Equal(spanId, ctx.SpanId.ToString()); + } + + [Fact] + public void TryGetExistingContext_WithNullHeaders_ReturnsFalse() + { + var ok = ServiceConnectActivitySource.TryGetExistingContext(null!, out var ctx); + + Assert.False(ok); + Assert.Equal(default, ctx); + } + + [Fact] + public void TryGetExistingContext_WithoutTraceHeaders_ReturnsFalse() + { + var headers = new Dictionary { ["Unrelated"] = "v" }; + + var ok = ServiceConnectActivitySource.TryGetExistingContext(headers, out var ctx); + + Assert.False(ok); + Assert.Equal(default, ctx); + } + + [Fact] + public void Send_EmptyEndPoint_FallsBackToAnonymous() + { + // SendEventArgs carries one per-delivery endpoint. When that endpoint is empty + // (e.g. publish-style sends with no resolved destination), the span tags as + // anonymous rather than emitting an empty-string destination that would + // pollute trace-by-destination dashboards. + var args = new SendEventArgs + { + EndPoint = "", + Headers = new Dictionary(), + }; + + using var activity = ServiceConnectActivitySource.Send(args, _options, _attrs); + + Assert.NotNull(activity); + Assert.Equal("anonymous send", activity!.DisplayName); + Assert.Null(activity.GetTagItem(MessagingDestination)); + Assert.Equal(true, activity.GetTagItem(MessagingDestinationAnonymous)); + } + + [Fact] + public void Send_SetsMessagingOperation_ToPublish() + { + var args = new SendEventArgs + { + EndPoint = "queue-a", + Headers = new Dictionary(), + Message = null, + }; + + using var activity = ServiceConnectActivitySource.Send(args, _options, _attrs); + + Assert.NotNull(activity); + Assert.Equal("publish", activity!.GetTagItem(MessagingOperationType)); + Assert.Equal("publish", activity.GetTagItem(MessagingOperationName)); + // Old attribute is GONE — OTel semconv update. + Assert.Null(activity.GetTagItem("messaging.operation")); + } + + [Fact] + public void Publish_WithLinkedContext_SetsActivityParentNotLink() + { + var parentTraceId = ActivityTraceId.CreateRandom(); + var parentSpanId = ActivitySpanId.CreateRandom(); + var linkedContext = new ActivityContext(parentTraceId, parentSpanId, ActivityTraceFlags.Recorded); + + var args = new PublishEventArgs + { + Message = new Message(Guid.NewGuid()), + Exchange = "exchange", + Headers = new Dictionary(), + }; + + using var activity = ServiceConnectActivitySource.Publish(args, _options, _attrs, linkedContext); + + Assert.NotNull(activity); + Assert.Equal(parentTraceId, activity!.TraceId); + Assert.Equal(parentSpanId, activity.ParentSpanId); + } + + [Fact] + public void Send_WithLinkedContext_SetsActivityParentNotLink() + { + var parentTraceId = ActivityTraceId.CreateRandom(); + var parentSpanId = ActivitySpanId.CreateRandom(); + var linkedContext = new ActivityContext(parentTraceId, parentSpanId, ActivityTraceFlags.Recorded); + + var args = new SendEventArgs + { + Message = new Message(Guid.NewGuid()), + EndPoint = "queue-a", + Headers = new Dictionary(), + }; + + using var activity = ServiceConnectActivitySource.Send(args, _options, _attrs, linkedContext); + + Assert.NotNull(activity); + Assert.Equal(parentTraceId, activity!.TraceId); + Assert.Equal(parentSpanId, activity.ParentSpanId); + } + + [Fact] + public void Consume_WithTraceParent_KeepsParentSemantics() + { + // Consume legitimately wants parent-context: the W3C traceparent header is + // the actual upstream span, and the consume span IS its child. + var producerTraceId = ActivityTraceId.CreateRandom(); + var producerSpanId = ActivitySpanId.CreateRandom(); + var traceParent = $"00-{producerTraceId}-{producerSpanId}-01"; + + var args = new ConsumeEventArgs + { + Headers = new Dictionary + { + ["traceparent"] = traceParent, + [HeaderKeys.DestinationAddress] = "queue-a", + }, + Message = [1], + }; + + using var activity = ServiceConnectActivitySource.Consume(args, _options, _attrs); + + Assert.NotNull(activity); + // Consume IS a child of the producer — same trace. + Assert.Equal(producerTraceId, activity!.TraceId); + // Not exposed as a link; it's the actual parent. + Assert.Empty(activity.Links); + } + + [Fact] + public void Publish_InjectsTraceContextExactlyOnce_WhenListenerAttached() + { + var injectCount = 0; + var originalPropagator = DistributedContextPropagator.Current; + try + { + DistributedContextPropagator.Current = new CountingPropagator(() => injectCount++); + + var args = new PublishEventArgs + { + Message = new Message(Guid.NewGuid()), + Exchange = "exchange", + Headers = new Dictionary(), + }; + + using var activity = ServiceConnectActivitySource.Publish(args, _options, _attrs); + Assert.NotNull(activity); + + Assert.Equal(1, injectCount); + } + finally + { + DistributedContextPropagator.Current = originalPropagator; + } + } + + [Fact] + public void InjectHeader_UnsupportedCarrier_WritesWarningOnce() + { + var listener = new RecordingTraceListener(); + Trace.Listeners.Add(listener); + try + { + ServiceConnectActivitySource.ResetCarrierWarnedFlagForTest(); + + // Two invocations of InjectHeaderForTest with the wrong carrier shape: + ServiceConnectActivitySource.InvokeInjectHeaderForTest(new Dictionary(), "k", "v"); + ServiceConnectActivitySource.InvokeInjectHeaderForTest(new Dictionary(), "k", "v"); + + Assert.Single(listener.Warnings, w => w.Contains("InjectHeader")); + } + finally + { + Trace.Listeners.Remove(listener); + } + } + + [Fact] + public void InjectHeader_StringDictionaryCarrier_WritesNoWarning() + { + var listener = new RecordingTraceListener(); + Trace.Listeners.Add(listener); + try + { + ServiceConnectActivitySource.ResetCarrierWarnedFlagForTest(); + + // Correct carrier shape — should NOT trigger any warning. + var carrier = new Dictionary(); + ServiceConnectActivitySource.InvokeInjectHeaderForTest(carrier, "k", "v"); + ServiceConnectActivitySource.InvokeInjectHeaderForTest(carrier, "k2", "v2"); + + Assert.DoesNotContain(listener.Warnings, w => w.Contains("InjectHeader")); + // Headers were correctly written: + Assert.Equal("v", carrier["k"]); + Assert.Equal("v2", carrier["k2"]); + } + finally + { + Trace.Listeners.Remove(listener); + } + } + + private sealed class RecordingTraceListener : TraceListener + { + public List Warnings { get; } = []; + public override void TraceEvent(TraceEventCache? cache, string source, TraceEventType type, int id, string? message) + { + if (type == TraceEventType.Warning && message is not null) + { + Warnings.Add(message); + } + } + public override void TraceEvent(TraceEventCache? cache, string source, TraceEventType type, int id, string? format, params object?[]? args) + { + if (type == TraceEventType.Warning && format is not null) + { + Warnings.Add(args is { Length: > 0 } ? string.Format(format, args) : format); + } + } + public override void Write(string? message) { } + public override void WriteLine(string? message) { } + } + + private sealed class CountingPropagator(Action onInject) : DistributedContextPropagator + { + public override IReadOnlyCollection Fields => []; + public override void Inject(Activity? activity, object? carrier, PropagatorSetterCallback? setter) + => onInject(); + public override void ExtractTraceIdAndState(object? carrier, PropagatorGetterCallback? getter, out string? traceId, out string? traceState) + { traceId = null; traceState = null; } + public override IEnumerable>? ExtractBaggage(object? carrier, PropagatorGetterCallback? getter) + => null; + } + + [Fact] + public void Consume_MalformedTraceparent_ForcesFreshTraceRoot() + { + // A poisoned producer that injects an unparseable traceparent must NOT cause the + // consume span to be grafted onto whatever Activity.Current happens to be — that + // ambient could be an unrelated hosted-environment activity (ASP.NET request, + // worker loop) and would produce a stitched-but-wrong trace graph pointing at + // the wrong producer. Start a brand-new trace root instead. + using var ambient = new Activity("ambient").Start(); + + var args = new ConsumeEventArgs + { + Message = [1], + Type = "FakeMessage", + Headers = new Dictionary + { + ["traceparent"] = "this-is-not-a-valid-traceparent", + }, + }; + + using var activity = ServiceConnectActivitySource.Consume(args, _options, _attrs); + + Assert.NotNull(activity); + Assert.NotEqual(ambient.TraceId, activity!.TraceId); + Assert.Equal(true, activity.GetTagItem("enrichment.malformed_traceparent")); + } + + [Fact] + public void Publish_EnricherThrowsOce_DisposesActivity_AndRestoresAmbientCurrent() + { + var ambient = new Activity("ambient").Start(); + + var options = new ServiceConnectInstrumentationOptions + { + EnrichWithMessage = (_, _) => throw new OperationCanceledException("co-op cancel"), + }; + + var args = new PublishEventArgs + { + Message = new Message(Guid.NewGuid()), + Exchange = "exchange", + Headers = new Dictionary(), + }; + + var thrown = Assert.Throws(() => + ServiceConnectActivitySource.Publish(args, options, _attrs)); + + Assert.Equal("co-op cancel", thrown.Message); + // The activity that Publish started must be disposed before the OCE escapes, + // so Activity.Current is the outer ambient activity, not a leaked publish span. + Assert.Same(ambient, Activity.Current); + + ambient.Dispose(); + } + + [Fact] + public void Send_EnricherThrowsOce_DisposesActivity_AndRestoresAmbientCurrent() + { + var ambient = new Activity("ambient").Start(); + + var options = new ServiceConnectInstrumentationOptions + { + EnrichWithMessage = (_, _) => throw new OperationCanceledException("co-op cancel"), + }; + + var args = new SendEventArgs + { + Message = new Message(Guid.NewGuid()), + EndPoint = "queue-a", + Headers = new Dictionary(), + }; + + Assert.Throws(() => + ServiceConnectActivitySource.Send(args, options, _attrs)); + + Assert.Same(ambient, Activity.Current); + + ambient.Dispose(); + } + + [Fact] + public void Consume_EnricherThrowsOce_DisposesActivity_AndRestoresAmbientCurrent() + { + var ambient = new Activity("ambient").Start(); + + var options = new ServiceConnectInstrumentationOptions + { + EnrichWithMessageBytes = (_, _) => throw new OperationCanceledException("co-op cancel"), + }; + + var args = new ConsumeEventArgs + { + Message = [1, 2, 3], + Type = "FakeMessage", + Headers = new Dictionary(), + }; + + Assert.Throws(() => + ServiceConnectActivitySource.Consume(args, options, _attrs)); + + Assert.Same(ambient, Activity.Current); + + ambient.Dispose(); + } + + // ---------------- MaxTagValueLength truncation ---------------- + + [Fact] + public void Publish_HeaderValueExceedsMaxTagValueLength_TruncatesTag() + { + var longRoutingKey = new string('a', 500); + var options = new ServiceConnectInstrumentationOptions { MaxTagValueLength = 100 }; + + var args = new PublishEventArgs + { + Message = new Message(Guid.NewGuid()), + Exchange = "exchange", + RoutingKey = longRoutingKey, + Headers = new Dictionary(), + }; + + using var activity = ServiceConnectActivitySource.Publish(args, options, _attrs); + Assert.NotNull(activity); + + var routingKeyTag = activity.GetTagItem(MessagingAttributes.MessagingDestinationRoutingKey)?.ToString(); + Assert.NotNull(routingKeyTag); + Assert.Equal(100, routingKeyTag.Length); + Assert.Equal(new string('a', 100), routingKeyTag); + } + + [Fact] + public void Publish_HeaderValueWithinMaxTagValueLength_TagsVerbatim() + { + var shortRoutingKey = "short.routing.key"; + var options = new ServiceConnectInstrumentationOptions { MaxTagValueLength = 100 }; + + var args = new PublishEventArgs + { + Message = new Message(Guid.NewGuid()), + Exchange = "exchange", + RoutingKey = shortRoutingKey, + Headers = new Dictionary(), + }; + + using var activity = ServiceConnectActivitySource.Publish(args, options, _attrs); + Assert.NotNull(activity); + + var routingKeyTag = activity.GetTagItem(MessagingAttributes.MessagingDestinationRoutingKey)?.ToString(); + Assert.Equal(shortRoutingKey, routingKeyTag); + } + + // ---------------- ExceptionMessageSanitiser ---------------- + + [Fact] + public void SetError_WithSanitiser_AppliesToStatusAndExceptionEventTag() + { + var options = new ServiceConnectInstrumentationOptions + { + ExceptionMessageSanitiser = ex => "REDACTED", + }; + + ActivityStatusCode observedStatus = ActivityStatusCode.Unset; + string? observedDescription = null; + Dictionary? observedExceptionTags = null; + + var capturingListener = new ActivityListener + { + ShouldListenTo = src => src.Name == ServiceConnectActivitySource.ActivitySourceName, + Sample = (ref ActivityCreationOptions _) => ActivitySamplingResult.AllData, + ActivityStopped = a => + { + observedStatus = a.Status; + observedDescription = a.StatusDescription; + var ev = a.Events.FirstOrDefault(e => e.Name == "exception"); + if (ev.Tags is not null) + { + observedExceptionTags = ev.Tags.ToDictionary(t => t.Key, t => t.Value); + } + }, + }; + ActivitySource.AddActivityListener(capturingListener); + try + { + using var activity = new ActivitySource(ServiceConnectActivitySource.ActivitySourceName).StartActivity("test"); + Assert.NotNull(activity); + + ServiceConnectActivitySource.SetError(activity, new InvalidOperationException("sensitive: connection-string=secret"), options); + + activity.Dispose(); + + Assert.Equal(ActivityStatusCode.Error, observedStatus); + Assert.Equal("REDACTED", observedDescription); + Assert.NotNull(observedExceptionTags); + Assert.Equal("REDACTED", observedExceptionTags!["exception.message"]); + } + finally + { + capturingListener.Dispose(); + } + } + + // ---------------- IsAllDataRequested guards ---------------- + + // NOTE: This test cannot use the fixture's pre-registered AllData listener because AllData + // beats PropagationData and IsAllDataRequested would always be true. The test is placed here + // for organisational proximity but uses its own isolated listener pattern: see + // ServiceConnectActivitySource_PropagationOnlyTests below for the actual guard coverage. + + // ---------------- Empty-Guid CorrelationId ---------------- + + [Fact] + public void Publish_EmptyCorrelationId_DoesNotSetConversationIdTag() + { + var args = new PublishEventArgs + { + Message = new Message(Guid.Empty), + Exchange = "exchange", + Headers = new Dictionary(), + }; + + using var activity = ServiceConnectActivitySource.Publish(args, _options, _attrs); + Assert.NotNull(activity); + Assert.Null(activity.GetTagItem(MessagingAttributes.MessageConversationId)); + } + + [Fact] + public void Publish_NonEmptyCorrelationId_SetsConversationIdTag() + { + var cid = Guid.NewGuid(); + var args = new PublishEventArgs + { + Message = new Message(cid), + Exchange = "exchange", + Headers = new Dictionary(), + }; + + using var activity = ServiceConnectActivitySource.Publish(args, _options, _attrs); + Assert.NotNull(activity); + Assert.Equal(cid.ToString(), activity.GetTagItem(MessagingAttributes.MessageConversationId)?.ToString()); + } + + // ---------------- Single ActivitySource verification ---------------- + + [Fact] + public void Publish_Send_Consume_AllEmitOnSingleActivitySource() + { + var sourceNames = new HashSet(); + var listener = new ActivityListener + { + ShouldListenTo = _ => true, + Sample = (ref ActivityCreationOptions _) => ActivitySamplingResult.AllData, + ActivityStarted = a => sourceNames.Add(a.Source.Name), + }; + ActivitySource.AddActivityListener(listener); + try + { + using (ServiceConnectActivitySource.Publish( + new PublishEventArgs { Message = new Message(Guid.NewGuid()), Exchange = "x", Headers = new Dictionary() }, + _options, _attrs)) { } + using (ServiceConnectActivitySource.Send( + new SendEventArgs { Message = new Message(Guid.NewGuid()), EndPoint = "q", Headers = new Dictionary() }, + _options, _attrs)) { } + using (ServiceConnectActivitySource.Consume( + new ConsumeEventArgs { Message = [1], Type = "T", Headers = new Dictionary() }, + _options, _attrs)) { } + + Assert.Single(sourceNames); + Assert.Contains(ServiceConnectActivitySource.ActivitySourceName, sourceNames); + } + finally + { + listener.Dispose(); + } + } + + // ---------------- Sanitiser-bypass via exception.stacktrace ---------------- + + [Fact] + public void SetError_WithSanitiser_StacktraceTagDoesNotContainRawMessage() + { + using var listener = new ActivityListener + { + ShouldListenTo = _ => true, + Sample = (ref ActivityCreationOptions _) => ActivitySamplingResult.AllDataAndRecorded, + }; + ActivitySource.AddActivityListener(listener); + + using var source = new ActivitySource("ServiceConnectActivitySourceTests-Sanitiser"); + using var activity = source.StartActivity("op"); + Assert.NotNull(activity); + + Exception thrown; + try + { + throw new InvalidOperationException("RAW-SECRET-MESSAGE"); + } + catch (Exception ex) + { + thrown = ex; + } + + var options = new ServiceConnectInstrumentationOptions + { + ExceptionMessageSanitiser = _ => "REDACTED", + }; + + ServiceConnectActivitySource.SetError(activity, thrown, options); + + var exceptionEvent = activity!.Events.Single(e => e.Name == "exception"); + var stacktrace = exceptionEvent.Tags.Single(t => t.Key == "exception.stacktrace").Value?.ToString() ?? string.Empty; + var message = exceptionEvent.Tags.Single(t => t.Key == "exception.message").Value?.ToString() ?? string.Empty; + + Assert.DoesNotContain("RAW-SECRET-MESSAGE", stacktrace); + Assert.Equal("REDACTED", message); + } +} + +[Collection("ActivityListener")] +public sealed class ServiceConnectActivitySource_NoListenerTests +{ + private readonly ServiceConnectInstrumentationOptions _options = new(); + private readonly IMessagingSystemAttributes _attrs = new RabbitMqMessagingSystemAttributes(); + + [Fact] + public void Publish_ReturnsNull_WhenNoListeners() + { + var args = new PublishEventArgs + { + Exchange = "orders", + Message = new Message(Guid.NewGuid()) + }; + + using var activity = ServiceConnectActivitySource.Publish(args, _options, _attrs); + + Assert.Null(activity); + } + + [Fact] + public void Consume_ReturnsNull_WhenNoListeners() + { + var args = new ConsumeEventArgs(); + + using var activity = ServiceConnectActivitySource.Consume(args, _options, _attrs); + + Assert.Null(activity); + } + + [Fact] + public void Send_ReturnsNull_WhenNoListeners() + { + var args = new SendEventArgs { EndPoint = "ep" }; + + using var activity = ServiceConnectActivitySource.Send(args, _options, _attrs); + + Assert.Null(activity); + } + + [Fact] + public void IsConsumeTelemetryEnabled_NoListener_ReturnsFalse() + { + var options = new ServiceConnectInstrumentationOptions { EnableConsumeTelemetry = true }; + Assert.False(ServiceConnectActivitySource.IsConsumeTelemetryEnabled(options)); + } +} + +[Collection("ActivityListener")] +public sealed class ServiceConnectActivitySource_PropagationOnlyTests +{ + private readonly ServiceConnectInstrumentationOptions _options = new(); + private readonly IMessagingSystemAttributes _attrs = new RabbitMqMessagingSystemAttributes(); + + // Tests in this fixture register only a PropagationData listener so that + // IsAllDataRequested is false. A co-existing AllData listener would win and + // make IsAllDataRequested always true, defeating the guard coverage. + + [Fact] + public void Publish_SampleDroppedActivity_DoesNotSetUserTags() + { + var droppingListener = new ActivityListener + { + ShouldListenTo = src => src.Name == ServiceConnectActivitySource.ActivitySourceName, + Sample = (ref ActivityCreationOptions _) => ActivitySamplingResult.PropagationData, + }; + ActivitySource.AddActivityListener(droppingListener); + try + { + var args = new PublishEventArgs + { + Message = new Message(Guid.NewGuid()), + Exchange = "exchange", + RoutingKey = "rk", + Headers = new Dictionary(), + }; + + using var activity = ServiceConnectActivitySource.Publish(args, _options, _attrs); + Assert.NotNull(activity); + Assert.False(activity.IsAllDataRequested); + + Assert.Null(activity.GetTagItem(MessagingAttributes.MessagingDestination)); + Assert.Null(activity.GetTagItem(MessagingAttributes.MessagingDestinationRoutingKey)); + } + finally + { + droppingListener.Dispose(); + } + } + + [Fact] + public void Consume_SampleDroppedActivity_DoesNotSetBodySizeTag() + { + var droppingListener = new ActivityListener + { + ShouldListenTo = src => src.Name == ServiceConnectActivitySource.ActivitySourceName, + Sample = (ref ActivityCreationOptions _) => ActivitySamplingResult.PropagationData, + }; + ActivitySource.AddActivityListener(droppingListener); + try + { + var args = new ConsumeEventArgs + { + Message = [1, 2, 3], + Headers = new Dictionary(), + }; + + using var activity = ServiceConnectActivitySource.Consume(args, _options, _attrs); + Assert.NotNull(activity); + Assert.False(activity.IsAllDataRequested); + + Assert.Null(activity.GetTagItem(MessagingAttributes.MessagingBodySize)); + } + finally + { + droppingListener.Dispose(); + } + } + + // ---------------- TelemetrySendMiddleware: anonymous destination on Publish ---------------- + + [Fact] + public async Task Publish_ViaSendMiddleware_StampsAnonymousDestination() + { + // The send middleware leaves Exchange empty for anonymous publishes so the span + // surfaces as anonymous; the routing-key tag is still stamped to preserve + // RabbitMQ-specific routing observability. + Activity? captured = null; + using var capture = new ActivityListener + { + ShouldListenTo = src => src.Name == ServiceConnectActivitySource.ActivitySourceName, + Sample = (ref ActivityCreationOptions _) => ActivitySamplingResult.AllData, + ActivityStarted = a => captured = a, + }; + ActivitySource.AddActivityListener(capture); + try + { + var middleware = new TelemetrySendMiddleware(_options, _attrs); + var ctx = new SendContext + { + Message = new MiddlewareTestMessage(Guid.NewGuid()), + MessageType = typeof(MiddlewareTestMessage), + MessageBytes = ReadOnlyMemory.Empty, + Headers = new Dictionary(), + EndPoint = null, + RoutingKey = "high-priority", + Operation = SendOperation.Publish, + }; + + await middleware.ProcessAsync(ctx, (_, _) => Task.CompletedTask, CancellationToken.None); + + Assert.NotNull(captured); + Assert.Null(captured!.GetTagItem(MessagingDestination)); // no destination — anonymous. + Assert.Equal(true, captured.GetTagItem(MessagingDestinationAnonymous)); + // Routing key is still preserved for RabbitMQ-specific routing observability. + Assert.Equal("high-priority", captured.GetTagItem(MessagingDestinationRoutingKey)); + // New OTel pair. + Assert.Equal("publish", captured.GetTagItem(MessagingOperationType)); + Assert.Equal("publish", captured.GetTagItem(MessagingOperationName)); + // Old attribute is GONE. + Assert.Null(captured.GetTagItem("messaging.operation")); + } + finally + { + capture.Dispose(); + } + } + + private sealed class MiddlewareTestMessage(Guid correlationId) : Message(correlationId); +} diff --git a/src/ServiceConnect.UnitTests/Telemetry/ServiceConnectActivitySourceTruncateTests.cs b/src/ServiceConnect.UnitTests/Telemetry/ServiceConnectActivitySourceTruncateTests.cs new file mode 100644 index 000000000..e0cba254c --- /dev/null +++ b/src/ServiceConnect.UnitTests/Telemetry/ServiceConnectActivitySourceTruncateTests.cs @@ -0,0 +1,90 @@ +using ServiceConnect.Telemetry; +using Xunit; + +namespace ServiceConnect.UnitTests.Telemetry; + +public sealed class ServiceConnectActivitySourceTruncateTests +{ + [Fact] + public void Truncate_AtSurrogatePairBoundary_DoesNotOrphanHighSurrogate() + { + // U+1F600 ("grinning face" emoji) is a non-BMP code point encoded as the + // surrogate pair D83D DE00. Place it across the truncation boundary: + // "abc" (3 BMP chars) + "😀" (2 surrogate code units) = length 5. + var input = "abc😀"; + var result = ServiceConnectActivitySource.Truncate(input, maxLength: 4); + + // A naive slice returns "abc\uD83D" — an orphaned high surrogate. + // The corrected implementation returns "abc" — trimmed one extra char. + Assert.Equal("abc", result); + foreach (var c in result) + { + Assert.False(char.IsHighSurrogate(c) || char.IsLowSurrogate(c), + $"Found orphan surrogate U+{(int)c:X4}"); + } + } + + [Fact] + public void Truncate_AtNonSurrogateBoundary_KeepsAllValidChars() + { + var result = ServiceConnectActivitySource.Truncate("abcdef", maxLength: 3); + Assert.Equal("abc", result); + } + + [Fact] + public void Truncate_ShortString_ReturnsUnchanged() + { + var result = ServiceConnectActivitySource.Truncate("hi", maxLength: 10); + Assert.Equal("hi", result); + } + + [Fact] + public void Truncate_Null_ReturnsEmpty() + { + var result = ServiceConnectActivitySource.Truncate(null, maxLength: 10); + Assert.Equal(string.Empty, result); + } + + [Fact] + public void Truncate_MaxLengthZero_ReturnsValueUnchanged() + { + // maxLength <= 0 is treated as "no limit" — the full value is returned. + var result = ServiceConnectActivitySource.Truncate("abc", maxLength: 0); + Assert.Equal("abc", result); + } + + [Fact] + public void Truncate_ExactLength_ReturnsUnchanged() + { + var result = ServiceConnectActivitySource.Truncate("abc", maxLength: 3); + Assert.Equal("abc", result); + } + + [Fact] + public void Truncate_SurrogatePairFitsEntirely_ReturnsBothCodeUnits() + { + // "ab😀" has length 4; maxLength 4 means no truncation needed. + var result = ServiceConnectActivitySource.Truncate("ab😀", maxLength: 4); + Assert.Equal("ab😀", result); + } + + [Fact] + public void Truncate_LowSurrogateAtBoundary_IsNotOrphaned() + { + // If by some construction a low surrogate ends up at position maxLength-1 + // (paired with a high surrogate two positions before it), the slice would + // keep the low surrogate — which is also orphaned. This tests that the + // implementation at least never splits a well-formed pair on entry. + // "a😀b" = 'a'(0), \uD83D(1), \uDE00(2), 'b'(3); maxLength=2 cuts at index 2. + var input = "a😀b"; + var result = ServiceConnectActivitySource.Truncate(input, maxLength: 2); + + // Position 1 is the high surrogate — must be trimmed, leaving "a". + Assert.Equal("a", result); + foreach (var c in result) + { + Assert.False(char.IsHighSurrogate(c) || char.IsLowSurrogate(c), + $"Found orphan surrogate U+{(int)c:X4}"); + } + } +} diff --git a/src/ServiceConnect.UnitTests/Telemetry/TelemetryBuilderExtensionsTests.cs b/src/ServiceConnect.UnitTests/Telemetry/TelemetryBuilderExtensionsTests.cs new file mode 100644 index 000000000..527492ca5 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Telemetry/TelemetryBuilderExtensionsTests.cs @@ -0,0 +1,199 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect; +using ServiceConnect.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Telemetry; +using Xunit; + +namespace ServiceConnect.UnitTests.Telemetry; + +public sealed class TelemetryBuilderExtensionsTests +{ + [Fact] + public void AddTelemetry_RegistersMiddlewareAtPositionZeroInBothPipelines() + { + var builder = new ServiceConnectBuilder(); + builder.ConfigurePipeline(p => + { + p.SendMessageMiddleware.Add(typeof(DummySend)); + p.MessageProcessingMiddleware.Add(typeof(DummyProcess)); + }); + + builder.AddTelemetry(); + + Assert.Equal(typeof(TelemetrySendMiddleware), builder.BusConfig.Pipeline.SendMessageMiddleware[0]); + Assert.Equal(typeof(TelemetryProcessingMiddleware), builder.BusConfig.Pipeline.MessageProcessingMiddleware[0]); + + var services = new ServiceCollection(); + foreach (var reg in builder.AdditionalRegistrations) + { + reg(services); + } + + var provider = services.BuildServiceProvider(); + + Assert.Same( + provider.GetRequiredService(), + provider.GetRequiredService()); + + Assert.Same( + provider.GetRequiredService(), + provider.GetRequiredService()); + } + + [Fact] + public void AddTelemetry_InvokesConfigureCallbackOnOptions() + { + var builder = new ServiceConnectBuilder(); + + builder.AddTelemetry(opts => opts.EnablePublishTelemetry = false); + + var services = new ServiceCollection(); + foreach (var reg in builder.AdditionalRegistrations) + { + reg(services); + } + + var provider = services.BuildServiceProvider(); + + var options = provider.GetRequiredService(); + Assert.False(options.EnablePublishTelemetry); + } + + [Fact] + public void AddTelemetry_TwoBuilders_ProduceDistinctOptionsInstances() + { + var builderA = new ServiceConnectBuilder(); + var builderB = new ServiceConnectBuilder(); + + builderA.AddTelemetry(o => o.EnablePublishTelemetry = true); + builderB.AddTelemetry(o => o.EnablePublishTelemetry = false); + + var servicesA = new ServiceCollection(); + foreach (var reg in builderA.AdditionalRegistrations) + { + reg(servicesA); + } + + var optionsA = servicesA.BuildServiceProvider().GetRequiredService(); + + var servicesB = new ServiceCollection(); + foreach (var reg in builderB.AdditionalRegistrations) + { + reg(servicesB); + } + + var optionsB = servicesB.BuildServiceProvider().GetRequiredService(); + + Assert.NotSame(optionsA, optionsB); + Assert.True(optionsA.EnablePublishTelemetry); + Assert.False(optionsB.EnablePublishTelemetry); + } + + [Fact] + public void AddTelemetry_UserRegisteredAttributes_WinOverDefault() + { + var builder = new ServiceConnectBuilder(); + + var customAttrs = new TestKafkaMessagingSystemAttributes(); + builder.AddRegistration(s => s.AddSingleton(customAttrs)); + + builder.AddTelemetry(); + + var services = new ServiceCollection(); + foreach (var reg in builder.AdditionalRegistrations) + { + reg(services); + } + + var resolved = services.BuildServiceProvider().GetRequiredService(); + Assert.Same(customAttrs, resolved); + } + + [Fact] + public void AddTelemetry_OptionsAreFrozenAfterRegistration_MutationThrows() + { + var builder = new ServiceConnectBuilder(); + builder.AddTelemetry(o => o.MaxTagValueLength = 100); + + var services = new ServiceCollection(); + foreach (var reg in builder.AdditionalRegistrations) + { + reg(services); + } + + var options = services.BuildServiceProvider().GetRequiredService(); + + Assert.Equal(100, options.MaxTagValueLength); + Assert.Throws(() => options.MaxTagValueLength = 50); + Assert.Throws(() => options.EnablePublishTelemetry = false); + Assert.Throws(() => options.EnrichWithMessage = null); + } + + [Fact] + public void AddTelemetry_NoUserAttributesRegistration_DefaultsToRabbitMq() + { + var builder = new ServiceConnectBuilder(); + builder.AddTelemetry(); + + var services = new ServiceCollection(); + foreach (var reg in builder.AdditionalRegistrations) + { + reg(services); + } + + // RabbitMqMessagingSystemAttributes requires ITransportConfiguration to resolve its + // server.address and server.port values; register a stub so DI can satisfy the ctor. + services.AddSingleton( + new StubTransportConfiguration()); + + var resolved = services.BuildServiceProvider().GetRequiredService(); + Assert.IsType(resolved); + } + + private sealed class DummySend : ISendMessageMiddleware + { + public Task ProcessAsync(SendContext context, SendMessageDelegate next, CancellationToken cancellationToken) + => next(context, cancellationToken); + } + + private sealed class DummyProcess : IMessageProcessingMiddleware + { + public Task ProcessAsync( + ReadOnlyMemory messageBytes, Type messageType, object message, + IDictionary headers, Envelope envelope, + MessageProcessingDelegate next, + CancellationToken cancellationToken) + => next(messageBytes, messageType, message, headers, envelope, cancellationToken); + } + + private sealed class TestKafkaMessagingSystemAttributes : IMessagingSystemAttributes + { + public string MessagingSystem => "kafka"; + public string ProtocolName => "kafka"; + } + + private sealed class StubTransportConfiguration : ServiceConnect.Interfaces.Configuration.ITransportConfiguration + { + public string Host { get; set; } = "localhost"; + public string? Username { get; set; } + public string? Password { get; set; } + public string? VirtualHost { get; set; } + public int RetryDelay { get; set; } + public int MaxRetries { get; set; } + public ushort PrefetchCount { get; set; } + public int GracefulShutdownTimeoutMilliseconds { get; set; } + public bool SslEnabled { get; set; } + public bool SuppressPlaintextWarning { get; set; } + public System.Net.Security.SslPolicyErrors AcceptablePolicyErrors { get; set; } + public string? ServerName { get; set; } + public string? CertPath { get; set; } + public string? CertPassphrase { get; set; } + public System.Security.Cryptography.X509Certificates.X509CertificateCollection? Certs { get; set; } + public System.Security.Authentication.SslProtocols SslProtocol { get; set; } + public System.Net.Security.LocalCertificateSelectionCallback? CertificateSelectionCallback { get; set; } + public System.Net.Security.RemoteCertificateValidationCallback? CertificateValidationCallback { get; set; } + public IReadOnlyDictionary ClientSettings { get; } = new Dictionary(); + public void SetClientSetting(string key, object value) { } + } +} diff --git a/src/ServiceConnect.UnitTests/Telemetry/TelemetryMeterExtensionsTests.cs b/src/ServiceConnect.UnitTests/Telemetry/TelemetryMeterExtensionsTests.cs new file mode 100644 index 000000000..012025c0e --- /dev/null +++ b/src/ServiceConnect.UnitTests/Telemetry/TelemetryMeterExtensionsTests.cs @@ -0,0 +1,29 @@ +using OpenTelemetry; +using OpenTelemetry.Metrics; +using ServiceConnect.Diagnostics; +using ServiceConnect.Telemetry; +using Xunit; + +namespace ServiceConnect.UnitTests.Telemetry; + +public class TelemetryMeterExtensionsTests +{ + [Fact] + public void AddServiceConnectInstrumentation_SubscribesToServiceConnectBusMeter() + { + using var meterProvider = Sdk.CreateMeterProviderBuilder() + .AddServiceConnectInstrumentation() + .Build(); + + Assert.NotNull(meterProvider); + } + + [Fact] + public void AddServiceConnectInstrumentation_ThrowsOnNullBuilder() + { + MeterProviderBuilder? builder = null; + + Assert.Throws( + () => TelemetryMeterExtensions.AddServiceConnectInstrumentation(builder!)); + } +} diff --git a/src/ServiceConnect.UnitTests/Telemetry/TelemetryProcessingMiddlewareCancellationTests.cs b/src/ServiceConnect.UnitTests/Telemetry/TelemetryProcessingMiddlewareCancellationTests.cs new file mode 100644 index 000000000..58122e177 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Telemetry/TelemetryProcessingMiddlewareCancellationTests.cs @@ -0,0 +1,123 @@ +using System.Diagnostics; +using ServiceConnect.Interfaces; +using ServiceConnect.Telemetry; +using Xunit; + +namespace ServiceConnect.UnitTests.Telemetry; + +[Collection("ActivityListener")] +public sealed class TelemetryProcessingMiddlewareCancellationTests : IDisposable +{ + private readonly List _activities = []; + private readonly ActivityListener _listener; + private readonly ServiceConnectInstrumentationOptions _options = new(); + private readonly IMessagingSystemAttributes _attrs = new RabbitMqMessagingSystemAttributes(); + + public TelemetryProcessingMiddlewareCancellationTests() + { + _listener = new ActivityListener + { + ShouldListenTo = src => src.Name == ServiceConnectActivitySource.ActivitySourceName, + Sample = static (ref ActivityCreationOptions _) => ActivitySamplingResult.AllData, + ActivityStopped = _activities.Add, + }; + ActivitySource.AddActivityListener(_listener); + } + + public void Dispose() => _listener.Dispose(); + + [Fact] + public async Task ProcessAsync_when_next_throws_OperationCanceled_span_status_is_not_error() + { + var sut = new TelemetryProcessingMiddleware(_options, _attrs); + var envelope = MakeEnvelope(); + using var cts = new CancellationTokenSource(); + await cts.CancelAsync(); + + Task Next( + ReadOnlyMemory bytes, + Type type, + object msg, + IDictionary hdrs, + Envelope env, + CancellationToken ct) => throw new OperationCanceledException(cts.Token); + + await Assert.ThrowsAsync( + () => sut.ProcessAsync( + envelope.Body, + typeof(SampleMessage), + new SampleMessage(), + envelope.Headers, + envelope, + Next, + cts.Token)); + + var span = Assert.Single(_activities); + Assert.Equal(ActivityStatusCode.Unset, span.Status); + } + + [Fact] + public async Task ProcessAsync_when_next_throws_non_cancellation_exception_span_status_is_error() + { + var sut = new TelemetryProcessingMiddleware(_options, _attrs); + var envelope = MakeEnvelope(); + + static Task Next( + ReadOnlyMemory bytes, + Type type, + object msg, + IDictionary hdrs, + Envelope env, + CancellationToken ct) => throw new InvalidOperationException("boom"); + + await Assert.ThrowsAsync( + () => sut.ProcessAsync( + envelope.Body, + typeof(SampleMessage), + new SampleMessage(), + envelope.Headers, + envelope, + Next, + CancellationToken.None)); + + var span = Assert.Single(_activities); + Assert.Equal(ActivityStatusCode.Error, span.Status); + } + + [Fact] + public async Task ProcessAsync_when_next_returns_unsuccessful_result_with_OperationCanceled_exception_span_status_is_not_error() + { + var sut = new TelemetryProcessingMiddleware(_options, _attrs); + var envelope = MakeEnvelope(); + + static Task Next( + ReadOnlyMemory bytes, + Type type, + object msg, + IDictionary hdrs, + Envelope env, + CancellationToken ct) => + Task.FromResult(new ConsumeEventResult { Success = false, Exception = new OperationCanceledException() }); + + var result = await sut.ProcessAsync( + envelope.Body, + typeof(SampleMessage), + new SampleMessage(), + envelope.Headers, + envelope, + Next, + CancellationToken.None); + + Assert.False(result.Success); + var span = Assert.Single(_activities); + Assert.Equal(ActivityStatusCode.Unset, span.Status); + } + + private static Envelope MakeEnvelope() => new() + { + Body = new byte[] { 1 }, + Headers = new Dictionary(StringComparer.Ordinal), + }; + + private sealed class SampleMessage() : Message(Guid.NewGuid()); +} diff --git a/src/ServiceConnect.UnitTests/Telemetry/TelemetryProcessingMiddlewareHeadersCastTests.cs b/src/ServiceConnect.UnitTests/Telemetry/TelemetryProcessingMiddlewareHeadersCastTests.cs new file mode 100644 index 000000000..7ad9a8892 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Telemetry/TelemetryProcessingMiddlewareHeadersCastTests.cs @@ -0,0 +1,123 @@ +using System.Collections; +using System.Diagnostics; +using ServiceConnect.Interfaces; +using ServiceConnect.Telemetry; +using Xunit; + +namespace ServiceConnect.UnitTests.Telemetry; + +[Collection("ActivityListener")] +public sealed class TelemetryProcessingMiddlewareHeadersCastTests : IDisposable +{ + private readonly ActivityListener _listener; + private readonly ServiceConnectInstrumentationOptions _options = new() { EnableConsumeTelemetry = true }; + private readonly IMessagingSystemAttributes _attrs = new RabbitMqMessagingSystemAttributes(); + + public TelemetryProcessingMiddlewareHeadersCastTests() + { + // Active listener is required by IsConsumeTelemetryEnabled — without it the + // middleware short-circuits and never exercises the Headers materialisation. + _listener = new ActivityListener + { + ShouldListenTo = src => src.Name == ServiceConnectActivitySource.ActivitySourceName, + Sample = static (ref ActivityCreationOptions _) => ActivitySamplingResult.AllData, + }; + ActivitySource.AddActivityListener(_listener); + } + + public void Dispose() => _listener.Dispose(); + + /// + /// A deliberately-degenerate impl that does NOT also + /// implement . A naive + /// (IReadOnlyDictionary<string,object>) downcast would throw + /// on this; the middleware's defensive copy succeeds. + /// + private sealed class WriteOnlyDictionaryAdapter : IDictionary + { + private readonly Dictionary _inner = []; + public object this[string key] { get => _inner[key]; set => _inner[key] = value; } + public ICollection Keys => _inner.Keys; + public ICollection Values => _inner.Values; + public int Count => _inner.Count; + public bool IsReadOnly => false; + public void Add(string key, object value) => _inner.Add(key, value); + public void Add(KeyValuePair item) => _inner.Add(item.Key, item.Value); + public void Clear() => _inner.Clear(); + public bool Contains(KeyValuePair item) => ((IDictionary)_inner).Contains(item); + public bool ContainsKey(string key) => _inner.ContainsKey(key); + public void CopyTo(KeyValuePair[] array, int arrayIndex) => ((IDictionary)_inner).CopyTo(array, arrayIndex); + public IEnumerator> GetEnumerator() => _inner.GetEnumerator(); + public bool Remove(string key) => _inner.Remove(key); + public bool Remove(KeyValuePair item) => ((IDictionary)_inner).Remove(item); + public bool TryGetValue(string key, out object value) => _inner.TryGetValue(key, out value!); + IEnumerator IEnumerable.GetEnumerator() => GetEnumerator(); + } + + [Fact] + public async Task ProcessAsync_WithThirdPartyHeadersDictionary_DoesNotThrowInvalidCastException() + { + var middleware = new TelemetryProcessingMiddleware(_options, _attrs); + + IDictionary headers = new WriteOnlyDictionaryAdapter + { + ["X-Test"] = "value", + }; + var envelope = new Envelope + { + Body = new ReadOnlyMemory([1, 2, 3]), + Headers = headers, + }; + var nextCalled = false; + Task Next( + ReadOnlyMemory bytes, Type type, object msg, + IDictionary hdrs, Envelope env, CancellationToken ct) + { + nextCalled = true; + return Task.FromResult(new ConsumeEventResult { Success = true }); + } + + // Pre-fix: would throw InvalidCastException because WriteOnlyDictionaryAdapter + // is not assignable to IReadOnlyDictionary. + var result = await middleware.ProcessAsync( + envelope.Body, + typeof(string), + "msg", + headers, + envelope, + Next, + CancellationToken.None); + + Assert.True(nextCalled); + Assert.True(result.Success); + } + + [Fact] + public async Task ProcessAsync_WithStandardDictionary_StillBehavesAsBefore() + { + var middleware = new TelemetryProcessingMiddleware(_options, _attrs); + + var headers = new Dictionary { ["MessageId"] = "id-1" }; + var envelope = new Envelope + { + Body = new ReadOnlyMemory([9]), + Headers = headers, + }; + + static Task Next( + ReadOnlyMemory bytes, Type type, object msg, + IDictionary hdrs, Envelope env, CancellationToken ct) => + Task.FromResult(new ConsumeEventResult { Success = true }); + + var result = await middleware.ProcessAsync( + envelope.Body, + typeof(string), + "msg", + headers, + envelope, + Next, + CancellationToken.None); + + Assert.True(result.Success); + } +} diff --git a/src/ServiceConnect.UnitTests/Telemetry/TelemetryProcessingMiddlewareTests.cs b/src/ServiceConnect.UnitTests/Telemetry/TelemetryProcessingMiddlewareTests.cs new file mode 100644 index 000000000..d4a6a2ebb --- /dev/null +++ b/src/ServiceConnect.UnitTests/Telemetry/TelemetryProcessingMiddlewareTests.cs @@ -0,0 +1,343 @@ +using System.Diagnostics; +using ServiceConnect.Interfaces; +using ServiceConnect.Telemetry; +using Xunit; + +namespace ServiceConnect.UnitTests.Telemetry; + +[Collection("ActivityListener")] +public sealed class TelemetryProcessingMiddlewareTests : IDisposable +{ + private readonly List _activities = []; + private readonly ActivityListener _listener; + private readonly ServiceConnectInstrumentationOptions _options = new(); + private readonly IMessagingSystemAttributes _attrs = new RabbitMqMessagingSystemAttributes(); + + public TelemetryProcessingMiddlewareTests() + { + _listener = new ActivityListener + { + ShouldListenTo = src => src.Name == ServiceConnectActivitySource.ActivitySourceName, + Sample = static (ref ActivityCreationOptions _) => ActivitySamplingResult.AllData, + ActivityStopped = _activities.Add, + }; + ActivitySource.AddActivityListener(_listener); + } + + public void Dispose() => _listener.Dispose(); + + [Fact] + public async Task ProcessAsync_creates_consume_activity_on_success() + { + var sut = new TelemetryProcessingMiddleware(_options, _attrs); + var envelope = MakeEnvelope(); + + static async Task Next( + ReadOnlyMemory bytes, + Type type, + object msg, + IDictionary hdrs, + Envelope env, + CancellationToken ct) + { + await Task.CompletedTask; + return new ConsumeEventResult { Success = true }; + } + + var result = await sut.ProcessAsync( + envelope.Body, + typeof(SampleMessage), + new SampleMessage(), + envelope.Headers, + envelope, + Next, + CancellationToken.None); + + Assert.True(result.Success); + var span = Assert.Single(_activities); + Assert.NotEqual(ActivityStatusCode.Error, span.Status); + } + + [Fact] + public async Task ProcessAsync_records_error_when_result_indicates_failure() + { + var sut = new TelemetryProcessingMiddleware(_options, _attrs); + var envelope = MakeEnvelope(); + var ex = new InvalidOperationException("nope"); + + Task Next( + ReadOnlyMemory bytes, + Type type, + object msg, + IDictionary hdrs, + Envelope env, + CancellationToken ct) => + Task.FromResult(new ConsumeEventResult { Success = false, Exception = ex }); + + var result = await sut.ProcessAsync( + envelope.Body, + typeof(SampleMessage), + new SampleMessage(), + envelope.Headers, + envelope, + Next, + CancellationToken.None); + + Assert.False(result.Success); + var span = Assert.Single(_activities); + Assert.Equal(ActivityStatusCode.Error, span.Status); + } + + [Fact] + public async Task ProcessAsync_records_exception_and_rethrows() + { + var sut = new TelemetryProcessingMiddleware(_options, _attrs); + var envelope = MakeEnvelope(); + var boom = new InvalidOperationException("boom"); + + Task Next( + ReadOnlyMemory bytes, + Type type, + object msg, + IDictionary hdrs, + Envelope env, + CancellationToken ct) => throw boom; + + var thrown = await Assert.ThrowsAsync( + () => sut.ProcessAsync( + envelope.Body, + typeof(SampleMessage), + new SampleMessage(), + envelope.Headers, + envelope, + Next, + CancellationToken.None)); + + Assert.Same(boom, thrown); + var span = Assert.Single(_activities); + Assert.Equal(ActivityStatusCode.Error, span.Status); + } + + [Fact] + public async Task ProcessAsync_ResultSuccessFalseNoException_TagsActivityError() + { + var middleware = new TelemetryProcessingMiddleware(_options, _attrs); + + ActivityStatusCode observedStatus = ActivityStatusCode.Unset; + string? observedDescription = null; + + var capturingListener = new ActivityListener + { + ShouldListenTo = src => src.Name == ServiceConnectActivitySource.ActivitySourceName, + Sample = (ref ActivityCreationOptions _) => ActivitySamplingResult.AllData, + ActivityStopped = a => + { + observedStatus = a.Status; + observedDescription = a.StatusDescription; + }, + }; + ActivitySource.AddActivityListener(capturingListener); + try + { + static Task Next(ReadOnlyMemory mb, Type mt, object m, IDictionary h, Envelope e, CancellationToken ct) => + Task.FromResult(new ConsumeEventResult { Success = false, Exception = null }); + + var envelope = new Envelope + { + Body = new ReadOnlyMemory([1, 2, 3]), + Headers = new Dictionary(), + }; + + var result = await middleware.ProcessAsync( + new ReadOnlyMemory([1, 2, 3]), + typeof(string), + "msg", + new Dictionary(), + envelope, + Next, + CancellationToken.None); + + Assert.False(result.Success); + Assert.Equal(ActivityStatusCode.Error, observedStatus); + Assert.Equal("Dispatch returned Success=false without an exception", observedDescription); + } + finally + { + capturingListener.Dispose(); + } + } + + [Fact] + public async Task ProcessAsync_ConsumeDisabled_PublishEnabled_PublishActivityChainsOnInboundTraceparent() + { + // Trace continuity contract: with consume telemetry off and publish telemetry on, + // a publish issued from inside the handler must produce a span whose TraceId + // matches the inbound traceparent. Without the AsyncLocal fallback the publish + // span would become a fresh trace root and downstream consumers could not stitch + // the graph across this hop. + var options = new ServiceConnectInstrumentationOptions + { + EnableConsumeTelemetry = false, + EnablePublishTelemetry = true, + }; + var middleware = new TelemetryProcessingMiddleware(options, _attrs); + + // Inbound headers carry a deterministic W3C traceparent so we can assert TraceId + // continuity end-to-end. + const string inboundTraceParent = "00-1234567890abcdef1234567890abcdef-1111111111111111-01"; + var headers = new Dictionary(StringComparer.Ordinal) + { + ["traceparent"] = inboundTraceParent, + }; + var envelope = new Envelope + { + Body = new byte[] { 1 }, + Headers = headers, + }; + + Activity? capturedPublishActivity = null; + Task Next( + ReadOnlyMemory mb, Type mt, object m, + IDictionary h, Envelope e, CancellationToken ct) + { + // Simulate a Bus.Publish from inside the handler. + var publishArgs = new PublishEventArgs + { + Headers = new Dictionary(StringComparer.Ordinal), + Exchange = "ex", + RoutingKey = "rk", + }; + capturedPublishActivity = ServiceConnectActivitySource.Publish(publishArgs, options, _attrs); + + // The injected traceparent on the outgoing headers must reference the + // inbound traceId (continuity), not a freshly-minted one. + Assert.True(publishArgs.Headers.TryGetValue("traceparent", out var injected)); + Assert.StartsWith("00-1234567890abcdef1234567890abcdef-", injected); + + capturedPublishActivity?.Dispose(); + return Task.FromResult(new ConsumeEventResult { Success = true }); + } + + var result = await middleware.ProcessAsync( + envelope.Body, + typeof(SampleMessage), + new SampleMessage(), + headers, + envelope, + Next, + CancellationToken.None); + + Assert.True(result.Success); + Assert.NotNull(capturedPublishActivity); + Assert.Equal("1234567890abcdef1234567890abcdef", capturedPublishActivity!.TraceId.ToHexString()); + + // The fallback must be cleared after ProcessAsync returns. Probe via a follow-up + // Publish on a fresh logical task: with no fallback, the publish-side InjectTraceContext + // sees Activity.Current null and writes nothing. + var probeArgs = new PublishEventArgs + { + Headers = new Dictionary(StringComparer.Ordinal), + }; + ServiceConnectActivitySource.Publish(probeArgs, options, _attrs)?.Dispose(); + // If the AsyncLocal had leaked, the probe headers would carry the inbound traceId. + if (probeArgs.Headers.TryGetValue("traceparent", out var leaked)) + { + Assert.False(leaked.StartsWith("00-1234567890abcdef1234567890abcdef-"), + $"AsyncLocal fallback leaked beyond ProcessAsync: '{leaked}'"); + } + } + + [Fact] + public async Task ProcessAsync_ConsumeDisabled_AllTelemetryOff_DoesNotStashFallback() + { + // When all publish/send telemetry is also disabled, there is no need to extract + // headers — the fallback would never be consulted. The middleware should remain + // a no-op on the fast path. We verify by observing that no AsyncLocal value + // leaks: a probe Publish AFTER ProcessAsync sees no inbound context (which is + // also true if the stash-and-cleanup pair worked correctly). + var options = new ServiceConnectInstrumentationOptions + { + EnableConsumeTelemetry = false, + EnablePublishTelemetry = false, + EnableSendTelemetry = false, + }; + var middleware = new TelemetryProcessingMiddleware(options, _attrs); + + var headers = new Dictionary(StringComparer.Ordinal) + { + ["traceparent"] = "00-aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-bbbbbbbbbbbbbbbb-01", + }; + var envelope = new Envelope { Body = new byte[] { 1 }, Headers = headers }; + + static Task Next( + ReadOnlyMemory mb, Type mt, object m, + IDictionary h, Envelope e, CancellationToken ct) => + Task.FromResult(new ConsumeEventResult { Success = true }); + + await middleware.ProcessAsync(envelope.Body, typeof(SampleMessage), new SampleMessage(), + headers, envelope, Next, CancellationToken.None); + + // Probe: with all telemetry off and the stash never set, a follow-up Publish must + // produce no span (no listener for publish) and no traceparent header. + var publishOptions = new ServiceConnectInstrumentationOptions { EnablePublishTelemetry = true }; + var probeArgs = new PublishEventArgs + { + Headers = new Dictionary(StringComparer.Ordinal), + }; + ServiceConnectActivitySource.Publish(probeArgs, publishOptions, _attrs)?.Dispose(); + if (probeArgs.Headers.TryGetValue("traceparent", out var leaked)) + { + Assert.False(leaked.StartsWith("00-aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-"), + $"AsyncLocal fallback was set despite all telemetry being disabled: '{leaked}'"); + } + } + + private static Envelope MakeEnvelope() => new() + { + Body = new byte[] { 1 }, + Headers = new Dictionary(StringComparer.Ordinal), + }; + + private sealed class SampleMessage() : Message(Guid.NewGuid()); +} + +// No [Collection("ActivityListener")] — no listener is registered, so IsConsumeTelemetryEnabled returns false. +public sealed class TelemetryProcessingMiddlewareNoListenerTests +{ + [Fact] + public async Task ProcessAsync_NoListener_DoesNotEnumerateEnvelopeBody() + { + var options = new ServiceConnectInstrumentationOptions { EnableConsumeTelemetry = true }; + var attributes = new RabbitMqMessagingSystemAttributes(); + var middleware = new TelemetryProcessingMiddleware(options, attributes); + + // Envelope.Body is init-only on a sealed class so property access cannot be + // intercepted by subclassing. The guard is verified indirectly: confirm that + // IsConsumeTelemetryEnabled returns false in this fixture (pre-condition) and + // that the middleware completes successfully (no spurious allocation / exception). + var envelope = new Envelope + { + Body = new ReadOnlyMemory([1, 2, 3]), + Headers = new Dictionary(), + }; + + static Task Next( + ReadOnlyMemory mb, Type mt, object m, + IDictionary h, Envelope e, CancellationToken ct) => + Task.FromResult(new ConsumeEventResult { Success = true }); + + var result = await middleware.ProcessAsync( + new ReadOnlyMemory([1, 2, 3]), + typeof(string), + "msg", + new Dictionary(), + envelope, + Next, + CancellationToken.None); + + Assert.True(result.Success); + // Pre-condition: gate predicate is false in this no-listener fixture, + // confirming the body-copy branch was never entered. + Assert.False(ServiceConnectActivitySource.IsConsumeTelemetryEnabled(options)); + } +} diff --git a/src/ServiceConnect.UnitTests/Telemetry/TelemetrySendMiddlewareCancellationTests.cs b/src/ServiceConnect.UnitTests/Telemetry/TelemetrySendMiddlewareCancellationTests.cs new file mode 100644 index 000000000..a0ddf1bfc --- /dev/null +++ b/src/ServiceConnect.UnitTests/Telemetry/TelemetrySendMiddlewareCancellationTests.cs @@ -0,0 +1,78 @@ +using System.Diagnostics; +using ServiceConnect.Interfaces; +using ServiceConnect.Telemetry; +using Xunit; + +namespace ServiceConnect.UnitTests.Telemetry; + +[Collection("ActivityListener")] +public sealed class TelemetrySendMiddlewareCancellationTests : IDisposable +{ + private readonly List _activities = []; + private readonly ActivityListener _listener; + private readonly ServiceConnectInstrumentationOptions _options = new(); + private readonly IMessagingSystemAttributes _attrs = new RabbitMqMessagingSystemAttributes(); + + public TelemetrySendMiddlewareCancellationTests() + { + _listener = new ActivityListener + { + ShouldListenTo = src => src.Name == ServiceConnectActivitySource.ActivitySourceName, + Sample = static (ref ActivityCreationOptions _) => ActivitySamplingResult.AllData, + ActivityStopped = _activities.Add, + }; + ActivitySource.AddActivityListener(_listener); + } + + public void Dispose() => _listener.Dispose(); + + [Fact] + public async Task ProcessAsync_when_next_throws_OperationCanceled_span_status_is_not_error() + { + var sut = new TelemetrySendMiddleware(_options, _attrs); + using var cts = new CancellationTokenSource(); + await cts.CancelAsync(); + + Task Next(SendContext ctx, CancellationToken ct) => throw new OperationCanceledException(cts.Token); + + var context = new SendContext + { + Message = new SampleMessage(), + MessageType = typeof(SampleMessage), + MessageBytes = ReadOnlyMemory.Empty, + Headers = new Dictionary(StringComparer.Ordinal), + Operation = SendOperation.Publish, + }; + + await Assert.ThrowsAsync( + () => sut.ProcessAsync(context, Next, cts.Token)); + + var span = Assert.Single(_activities); + Assert.Equal(ActivityStatusCode.Unset, span.Status); + } + + [Fact] + public async Task ProcessAsync_when_next_throws_non_cancellation_exception_span_status_is_error() + { + var sut = new TelemetrySendMiddleware(_options, _attrs); + + static Task Next(SendContext ctx, CancellationToken ct) => throw new InvalidOperationException("boom"); + + var context = new SendContext + { + Message = new SampleMessage(), + MessageType = typeof(SampleMessage), + MessageBytes = ReadOnlyMemory.Empty, + Headers = new Dictionary(StringComparer.Ordinal), + Operation = SendOperation.Publish, + }; + + await Assert.ThrowsAsync( + () => sut.ProcessAsync(context, Next, CancellationToken.None)); + + var span = Assert.Single(_activities); + Assert.Equal(ActivityStatusCode.Error, span.Status); + } + + private sealed class SampleMessage() : Message(Guid.NewGuid()); +} diff --git a/src/ServiceConnect.UnitTests/Telemetry/TelemetrySendMiddlewareTests.cs b/src/ServiceConnect.UnitTests/Telemetry/TelemetrySendMiddlewareTests.cs new file mode 100644 index 000000000..5957b60e5 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Telemetry/TelemetrySendMiddlewareTests.cs @@ -0,0 +1,107 @@ +using System.Diagnostics; +using ServiceConnect.Interfaces; +using ServiceConnect.Telemetry; +using Xunit; + +namespace ServiceConnect.UnitTests.Telemetry; + +[Collection("ActivityListener")] +public sealed class TelemetrySendMiddlewareTests : IDisposable +{ + private readonly List _activities = []; + private readonly ActivityListener _listener; + private readonly ServiceConnectInstrumentationOptions _options = new(); + private readonly IMessagingSystemAttributes _attrs = new RabbitMqMessagingSystemAttributes(); + + public TelemetrySendMiddlewareTests() + { + _listener = new ActivityListener + { + ShouldListenTo = src => src.Name == ServiceConnectActivitySource.ActivitySourceName, + Sample = static (ref ActivityCreationOptions _) => ActivitySamplingResult.AllData, + ActivityStopped = _activities.Add, + }; + ActivitySource.AddActivityListener(_listener); + } + + public void Dispose() => _listener.Dispose(); + + [Fact] + public async Task ProcessAsync_publish_creates_publish_activity_and_invokes_next() + { + var sut = new TelemetrySendMiddleware(_options, _attrs); + var nextCalled = false; + + async Task Next(SendContext ctx, CancellationToken ct) + { + nextCalled = true; + await Task.CompletedTask; + } + + var context = new SendContext + { + Message = new SampleMessage(), + MessageType = typeof(SampleMessage), + MessageBytes = new byte[] { 1 }, + Headers = new Dictionary(StringComparer.Ordinal), + RoutingKey = "rk", + Operation = SendOperation.Publish, + }; + + await sut.ProcessAsync(context, Next, CancellationToken.None); + + Assert.True(nextCalled); + var span = Assert.Single(_activities); + Assert.Equal(ServiceConnectActivitySource.ActivitySourceName, span.Source.Name); + } + + [Fact] + public async Task ProcessAsync_send_creates_send_activity() + { + var sut = new TelemetrySendMiddleware(_options, _attrs); + + static Task Next(SendContext ctx, CancellationToken ct) => Task.CompletedTask; + + var context = new SendContext + { + Message = new SampleMessage(), + MessageType = typeof(SampleMessage), + MessageBytes = ReadOnlyMemory.Empty, + Headers = new Dictionary(StringComparer.Ordinal), + EndPoint = "queue.target", + Operation = SendOperation.Send, + }; + + await sut.ProcessAsync(context, Next, CancellationToken.None); + + var span = Assert.Single(_activities); + Assert.Equal(ServiceConnectActivitySource.ActivitySourceName, span.Source.Name); + } + + [Fact] + public async Task ProcessAsync_records_exception_and_rethrows() + { + var sut = new TelemetrySendMiddleware(_options, _attrs); + var boom = new InvalidOperationException("boom"); + + Task Next(SendContext ctx, CancellationToken ct) => throw boom; + + var context = new SendContext + { + Message = new SampleMessage(), + MessageType = typeof(SampleMessage), + MessageBytes = ReadOnlyMemory.Empty, + Headers = new Dictionary(StringComparer.Ordinal), + Operation = SendOperation.Publish, + }; + + var thrown = await Assert.ThrowsAsync( + () => sut.ProcessAsync(context, Next, CancellationToken.None)); + Assert.Same(boom, thrown); + + var span = Assert.Single(_activities); + Assert.Equal(ActivityStatusCode.Error, span.Status); + } + + private sealed class SampleMessage() : Message(Guid.NewGuid()); +} diff --git a/src/ServiceConnect.UnitTests/Telemetry/TelemetryTracerExtensionsTests.cs b/src/ServiceConnect.UnitTests/Telemetry/TelemetryTracerExtensionsTests.cs new file mode 100644 index 000000000..b8cad2c98 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Telemetry/TelemetryTracerExtensionsTests.cs @@ -0,0 +1,49 @@ +using System.Diagnostics; +using OpenTelemetry; +using OpenTelemetry.Trace; +using ServiceConnect.Telemetry; +using Xunit; + +namespace ServiceConnect.UnitTests.Telemetry; + +[Collection("ActivityListener")] +public sealed class TelemetryTracerExtensionsTests +{ + [Fact] + public void AddServiceConnectInstrumentation_subscribes_provider_to_ServiceConnect_activity_source() + { + // Pin: invoking the extension on a TracerProvider must wire it to the + // ServiceConnect ActivitySource. A regression that called AddSource with + // the wrong name would leave exportedActivities empty. + var exportedActivities = new List(); + using var tp = Sdk.CreateTracerProviderBuilder() + .AddServiceConnectInstrumentation() + .AddInMemoryExporter(exportedActivities) + .Build(); + + using var source = new ActivitySource(ServiceConnectActivitySource.ActivitySourceName); + using (source.StartActivity("probe")) { } + + // ForceFlush drains any batched spans before the assertion. + tp.ForceFlush(); + + Assert.Contains(exportedActivities, a => + a.OperationName == "probe" && + a.Source.Name == ServiceConnectActivitySource.ActivitySourceName); + } + + [Fact] + public void AddServiceConnectInstrumentation_returns_same_builder_for_chaining() + { + var builder = Sdk.CreateTracerProviderBuilder(); + var returned = builder.AddServiceConnectInstrumentation(); + Assert.Same(builder, returned); + } + + [Fact] + public void AddServiceConnectInstrumentation_null_builder_throws() + { + TracerProviderBuilder? builder = null; + Assert.Throws(() => builder!.AddServiceConnectInstrumentation()); + } +} diff --git a/src/ServiceConnect.UnitTests/Telemetry/TryEnrichTests.cs b/src/ServiceConnect.UnitTests/Telemetry/TryEnrichTests.cs new file mode 100644 index 000000000..eca556661 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Telemetry/TryEnrichTests.cs @@ -0,0 +1,77 @@ +using System.Diagnostics; +using ServiceConnect.Interfaces; +using ServiceConnect.Telemetry; +using Xunit; + +namespace ServiceConnect.UnitTests.Telemetry; + +[Collection("ActivityListener")] +public class TryEnrichTests +{ + [Fact] + public void TryEnrich_Message_OperationCanceledException_PropagatesNotSwallowed() + { + var options = new ServiceConnectInstrumentationOptions + { + EnrichWithMessage = (_, _) => throw new OperationCanceledException("cancelled") + }; + + using var activity = new Activity("t").Start(); + + Assert.Throws( + () => ServiceConnectActivitySource.InvokeTryEnrichForTest(activity, new TestMsg(), options)); + } + + [Fact] + public void TryEnrich_Message_Exception_TagIsTypeName_NotMessage() + { + var options = new ServiceConnectInstrumentationOptions + { + EnrichWithMessage = (_, _) => throw new InvalidOperationException("super-secret-PII-string") + }; + + using var activity = new Activity("t").Start(); + ServiceConnectActivitySource.InvokeTryEnrichForTest(activity, new TestMsg(), options); + + var tag = activity.GetTagItem("enrichment.exception") as string; + Assert.NotNull(tag); + Assert.Contains("InvalidOperationException", tag); + Assert.DoesNotContain("super-secret-PII-string", tag); + } + + [Fact] + public void TryEnrich_Bytes_OperationCanceledException_PropagatesNotSwallowed() + { + var options = new ServiceConnectInstrumentationOptions + { + EnrichWithMessageBytes = (_, _) => throw new OperationCanceledException("cancelled") + }; + + using var activity = new Activity("t").Start(); + + Assert.Throws( + () => ServiceConnectActivitySource.InvokeTryEnrichForTest(activity, [1], options)); + } + + [Fact] + public void TryEnrich_Bytes_Exception_TagIsTypeName_NotMessage() + { + var options = new ServiceConnectInstrumentationOptions + { + EnrichWithMessageBytes = (_, _) => throw new InvalidOperationException("PII-from-payload") + }; + + using var activity = new Activity("t").Start(); + ServiceConnectActivitySource.InvokeTryEnrichForTest(activity, [1], options); + + var tag = activity.GetTagItem("enrichment.exception") as string; + Assert.NotNull(tag); + Assert.Contains("InvalidOperationException", tag); + Assert.DoesNotContain("PII-from-payload", tag); + } + + private sealed class TestMsg : Message + { + public TestMsg() : base(Guid.NewGuid()) { } + } +} diff --git a/src/ServiceConnect.UnitTests/TelemetryTests.cs b/src/ServiceConnect.UnitTests/TelemetryTests.cs deleted file mode 100644 index 88e162f15..000000000 --- a/src/ServiceConnect.UnitTests/TelemetryTests.cs +++ /dev/null @@ -1,300 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Diagnostics; -using System.Linq; -using System.Text; -using System.Threading.Tasks; -using Xunit; -using Moq; -using OpenTelemetry.Trace; -using OpenTelemetry; -using Newtonsoft.Json; -using ServiceConnect.Core; -using ServiceConnect.Interfaces; -using ServiceConnect.UnitTests.Fakes.Messages; -using ServiceConnect.UnitTests.Fakes.Handlers; - -namespace ServiceConnect.UnitTests; - -public class TelemetryTests -{ - private static readonly Guid CorrelationId = Guid.NewGuid(); - - private readonly Bus sut; - - private readonly Mock configurationMock; - private readonly Mock containerMock; - private readonly Mock consumerMock; - - private ConsumerEventHandler myEventHandler; - - public TelemetryTests() - { - containerMock = new Mock(); - consumerMock = new Mock(); - - configurationMock = new Mock(); - configurationMock.Setup(c => c.GetLogger()).Returns(new Mock().Object); - configurationMock.Setup(c => c.GetContainer()).Returns(containerMock.Object); - configurationMock.Setup(c => c.GetConsumer()).Returns(consumerMock.Object); - configurationMock.Setup(c => c.GetProcessMessagePipeline(It.IsAny())).Returns(new Mock().Object); - configurationMock.Setup(c => c.GetSendMessagePipeline()).Returns(new Mock().Object); - configurationMock.Setup(c => c.AddBusToContainer).Returns(false); - configurationMock.Setup(c => c.ScanForMesssageHandlers).Returns(false); - configurationMock.Setup(c => c.AutoStartConsuming).Returns(false); - configurationMock.Setup(c => c.EnableProcessManagerTimeouts).Returns(false); - configurationMock.Setup(c => c.TransportSettings.QueueName).Returns("TestQueue"); - - sut = new Bus(configurationMock.Object); - } - - [Fact] - public void ServiceConnectPublishCommandActivityStartStopTest() - { - var activityProcessor = new Mock>(); - using var tracer = GetTracer(activityProcessor.Object); - FakeMessage1 message = new(CorrelationId); - - sut.Publish(message); - - activityProcessor.Verify(x => x.OnStart(It.IsAny()), Times.Once); - activityProcessor.Verify(x => x.OnEnd(It.IsAny()), Times.Once); - } - - [Fact] - public void ServiceConnectPublishCommandInstrumentedTest() - { - var activityProcessor = new Mock>(); - using var tracer = GetTracer(activityProcessor.Object); - FakeMessage1 message = new(CorrelationId); - - sut.Publish(message); - - Activity activity = activityProcessor.Invocations[1].Arguments[0] as Activity; - Assert.Equal(ServiceConnectActivitySource.PublishActivitySourceName, activity?.OperationName); - Assert.Equal(ActivityKind.Producer, activity?.Kind); - Assert.Equal("anonymous publish", activity?.DisplayName); - Assert.Equal("rabbitmq", activity?.Tags.FirstOrDefault(x => x.Key == MessagingAttributes.MessagingSystem).Value); - Assert.Equal("amqp", activity?.Tags.FirstOrDefault(x => x.Key == MessagingAttributes.ProtocolName).Value); - Assert.Equal("publish", activity?.Tags.FirstOrDefault(x => x.Key == MessagingAttributes.MessagingOperation).Value); - Assert.Equal("true", activity?.Tags.FirstOrDefault(x => x.Key == MessagingAttributes.MessagingDestinationAnonymous).Value); - Assert.Equal(CorrelationId.ToString(), activity?.Tags.FirstOrDefault(x => x.Key == MessagingAttributes.MessageConversationId).Value); - } - - [Fact] - public void ServiceConnectPublishCommandWithHeadersInstrumentedTest() - { - var activityProcessor = new Mock>(); - using var tracer = GetTracer(activityProcessor.Object); - FakeMessage1 message = new(CorrelationId); - var messageId = Guid.NewGuid().ToString(); - Dictionary headers = new() - { - { "MessageId", messageId }, - }; - - sut.Publish(message, headers); - - Activity activity = activityProcessor.Invocations[1].Arguments[0] as Activity; - Assert.Equal(messageId, activity?.Tags.FirstOrDefault(x => x.Key == MessagingAttributes.MessageId).Value); - } - - [Fact] - public void ServiceConnectPublishCommandWithRoutingKeyInstrumentedTest() - { - var activityProcessor = new Mock>(); - using var tracer = GetTracer(activityProcessor.Object); - FakeMessage1 message = new(CorrelationId); - var routingKey = "TestQueue"; - - sut.Publish(message, routingKey); - - Activity activity = activityProcessor.Invocations[1].Arguments[0] as Activity; - Assert.Equal("TestQueue publish", activity?.DisplayName); - Assert.Equal("TestQueue", activity?.Tags.FirstOrDefault(x => x.Key == MessagingAttributes.MessagingDestination).Value); - } - - [Fact] - public async Task ServiceConnectConsumeCommandActivityStartStopTest() - { - var activityProcessor = new Mock>(); - using var tracer = GetTracer(activityProcessor.Object); - var headers = new Dictionary - { - { "MessageType", Encoding.ASCII.GetBytes("Send") }, - }; - SetupConsumer(); - byte[] message = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(new FakeMessage1(CorrelationId))); - - await myEventHandler!(message, typeof(FakeMessage1).AssemblyQualifiedName, headers); - - activityProcessor.Verify(x => x.OnStart(It.IsAny()), Times.Once); - activityProcessor.Verify(x => x.OnEnd(It.IsAny()), Times.Once); - } - - [Theory] - [InlineData(null)] - [InlineData("TestQueue")] - public async Task ServiceConnectConsumeCommandInstrumentedTest(string destinationAddress) - { - var activityProcessor = new Mock>(); - using var tracer = GetTracer(activityProcessor.Object); - var messageId = Guid.NewGuid().ToString(); - var headers = new Dictionary - { - { "MessageType", Encoding.ASCII.GetBytes("Send") }, - { "MessageId", Encoding.ASCII.GetBytes(messageId) }, - }; - if (destinationAddress is not null) - { - headers["DestinationAddress"] = Encoding.ASCII.GetBytes(destinationAddress); - } - - SetupConsumer(); - byte[] message = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(new FakeMessage1(CorrelationId))); - - await myEventHandler!(message, typeof(FakeMessage1).AssemblyQualifiedName, headers); - - Activity activity = activityProcessor.Invocations[1].Arguments[0] as Activity; - Assert.Equal(ServiceConnectActivitySource.ConsumeActivitySourceName, activity?.OperationName); - Assert.Equal(ActivityKind.Consumer, activity?.Kind); - if (destinationAddress is null) - { - Assert.Equal("anonymous receive", activity?.DisplayName); - Assert.Equal("true", activity?.Tags.FirstOrDefault(x => x.Key == MessagingAttributes.MessagingDestinationAnonymous).Value); - } - else - { - Assert.Equal($"{destinationAddress} receive", activity?.DisplayName); - Assert.Equal(destinationAddress, activity?.Tags.FirstOrDefault(x => x.Key == MessagingAttributes.MessagingDestination).Value); - } - - Assert.Equal("rabbitmq", activity?.Tags.FirstOrDefault(x => x.Key == MessagingAttributes.MessagingSystem).Value); - Assert.Equal("amqp", activity?.Tags.FirstOrDefault(x => x.Key == MessagingAttributes.ProtocolName).Value); - Assert.Equal("receive", activity?.Tags.FirstOrDefault(x => x.Key == MessagingAttributes.MessagingOperation).Value); - Assert.Equal(messageId, activity?.Tags.FirstOrDefault(x => x.Key == MessagingAttributes.MessageId).Value); - } - - [Fact] - public void ServiceConnectSendCommandActivityStartStopTest() - { - var activityProcessor = new Mock>(); - using var tracer = GetTracer(activityProcessor.Object); - FakeMessage1 message = new(CorrelationId); - - sut.Send(message, headers: null); - - activityProcessor.Verify(x => x.OnStart(It.IsAny()), Times.Once); - activityProcessor.Verify(x => x.OnEnd(It.IsAny()), Times.Once); - } - - [Fact] - public void ServiceConnectSendCommandWithEndPointActivityStartStopTest() - { - var activityProcessor = new Mock>(); - using var tracer = GetTracer(activityProcessor.Object); - FakeMessage1 message = new(CorrelationId); - var endPoint = "Endpoint.Test"; - - sut.Send(endPoint, message, headers: null); - - activityProcessor.Verify(x => x.OnStart(It.IsAny()), Times.Once); - activityProcessor.Verify(x => x.OnEnd(It.IsAny()), Times.Once); - } - - [Fact] - public void ServiceConnectSendCommandWithEndPointsActivityStartStopTest() - { - var activityProcessor = new Mock>(); - using var tracer = GetTracer(activityProcessor.Object); - FakeMessage1 message = new(CorrelationId); - List endPoints = new() { "Endpoint.Test" }; - - sut.Send(endPoints, message, headers: null); - - activityProcessor.Verify(x => x.OnStart(It.IsAny()), Times.Once); - activityProcessor.Verify(x => x.OnEnd(It.IsAny()), Times.Once); - } - - [Fact] - public void ServiceConnectSendCommandInstrumentedTest() - { - var activityProcessor = new Mock>(); - using var tracer = GetTracer(activityProcessor.Object); - FakeMessage1 message = new(CorrelationId); - - sut.Send(message, headers: null); - - Activity activity = activityProcessor.Invocations[1].Arguments[0] as Activity; - Assert.Equal(ServiceConnectActivitySource.SendActivitySourceName, activity?.OperationName); - Assert.Equal(ActivityKind.Producer, activity?.Kind); - Assert.Equal("anonymous publish", activity?.DisplayName); - Assert.Equal("rabbitmq", activity?.Tags.FirstOrDefault(x => x.Key == MessagingAttributes.MessagingSystem).Value); - Assert.Equal("amqp", activity?.Tags.FirstOrDefault(x => x.Key == MessagingAttributes.ProtocolName).Value); - Assert.Equal("publish", activity?.Tags.FirstOrDefault(x => x.Key == MessagingAttributes.MessagingOperation).Value); - Assert.Equal("true", activity?.Tags.FirstOrDefault(x => x.Key == "messaging.destination.anonymous").Value); - Assert.Equal(CorrelationId.ToString(), activity?.Tags.FirstOrDefault(x => x.Key == MessagingAttributes.MessageConversationId).Value); - } - - [Fact] - public void ServiceConnectSendCommandWithEndPointInstrumentedTest() - { - var activityProcessor = new Mock>(); - using var tracer = GetTracer(activityProcessor.Object); - FakeMessage1 message = new(CorrelationId); - string endPoint = "Test.Service"; - - sut.Send(endPoint, message, headers: null); - - Activity activity = activityProcessor.Invocations[1].Arguments[0] as Activity; - Assert.Equal($"{endPoint} publish", activity?.DisplayName); - Assert.Equal(endPoint, activity?.Tags.FirstOrDefault(x => x.Key == MessagingAttributes.MessagingDestination).Value); - } - - [Fact] - public void ServiceConnectSendCommandWithEndPointsInstrumentedTest() - { - var activityProcessor = new Mock>(); - using var tracer = GetTracer(activityProcessor.Object); - FakeMessage1 message = new(CorrelationId); - List endPoints = new() { "Test.Service1", "Test.Service2" }; - - sut.Send(endPoints, message, headers: null); - - Activity activity = activityProcessor.Invocations[1].Arguments[0] as Activity; - Assert.Equal("[Test.Service1,Test.Service2] publish", activity?.DisplayName); - Assert.Equal("[Test.Service1,Test.Service2]", activity?.Tags.FirstOrDefault(x => x.Key == MessagingAttributes.MessagingDestination).Value); - } - - private static TracerProvider GetTracer(BaseProcessor activityProcessor) - { - return Sdk.CreateTracerProviderBuilder() - .AddProcessor(activityProcessor) - .AddSource(ServiceConnectActivitySource.PublishActivitySourceName) - .AddSource(ServiceConnectActivitySource.ConsumeActivitySourceName) - .AddSource(ServiceConnectActivitySource.SendActivitySourceName) - .Build(); - } - - private void SetupConsumer() - { - List handlerReferences = new() - { - new HandlerReference - { - HandlerType = typeof(FakeHandler1), - MessageType = typeof(FakeMessage1), - }, - }; - containerMock.Setup(x => x.GetHandlerTypes()).Returns(handlerReferences); - consumerMock.Setup(x => x.StartConsuming(It.IsAny(), It.IsAny>(), It.Is(y => AssignEventHandler(y)), It.IsAny())); - - sut.StartConsuming(); - } - - private bool AssignEventHandler(ConsumerEventHandler eventHandler) - { - myEventHandler = eventHandler; - return true; - } -} \ No newline at end of file diff --git a/src/ServiceConnect.UnitTests/Timeouts/TimeoutDataReadOnlyHeadersTests.cs b/src/ServiceConnect.UnitTests/Timeouts/TimeoutDataReadOnlyHeadersTests.cs new file mode 100644 index 000000000..8c52cc223 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Timeouts/TimeoutDataReadOnlyHeadersTests.cs @@ -0,0 +1,25 @@ +using ServiceConnect.Interfaces; +using Xunit; + +namespace ServiceConnect.UnitTests.Timeouts; + +public class TimeoutDataReadOnlyHeadersTests +{ + [Fact] + public void Headers_PropertyType_IsReadOnlyDictionary() + { + var prop = typeof(TimeoutData).GetProperty(nameof(TimeoutData.Headers)); + Assert.NotNull(prop); + Assert.Equal(typeof(IReadOnlyDictionary), prop!.PropertyType); + } + + [Fact] + public void Headers_ConstructsAndReadsBack() + { + var data = new TimeoutData + { + Headers = new Dictionary { ["k"] = "v" } + }; + Assert.Equal("v", data.Headers["k"]); + } +} diff --git a/src/ServiceConnect.UnitTests/Timeouts/TimeoutHeaderPersistenceByteArrayRoundTripTests.cs b/src/ServiceConnect.UnitTests/Timeouts/TimeoutHeaderPersistenceByteArrayRoundTripTests.cs new file mode 100644 index 000000000..d3dc6d4a0 --- /dev/null +++ b/src/ServiceConnect.UnitTests/Timeouts/TimeoutHeaderPersistenceByteArrayRoundTripTests.cs @@ -0,0 +1,54 @@ +using System.Text; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.Timeouts; + +/// +/// Locks in the byte[]→"base64:" +/// arm for non-AMQP byte[] sources. Inbound RabbitMQ byte[] headers are eager-decoded to +/// strings at the consume boundary (see RabbitMqConsumerHost.CopyInboundHeaders), so the +/// byte[] arm is reachable only via direct programmatic API or persistence-layer +/// deserialisation that produces byte[] (e.g. MongoDB BSON binary). The arm exists to keep +/// those values round-trippable to receivers without UTF-8 corruption. +/// +public class TimeoutHeaderPersistenceByteArrayRoundTripTests +{ + [Fact] + public void BuildOutgoingHeaders_PrefixesByteArrayValueWithBase64Marker() + { + var originalBytes = new byte[] { 0xDE, 0xAD, 0xBE, 0xEF, 0xCA, 0xFE }; + var stored = new Dictionary + { + ["X-Bytes"] = originalBytes, + }; + + var outgoing = TimeoutHeaderPersistence.BuildOutgoingHeaders(stored); + + Assert.True(outgoing.ContainsKey("X-Bytes")); + Assert.StartsWith(TimeoutHeaderPersistence.BinaryHeaderPrefix, outgoing["X-Bytes"], StringComparison.Ordinal); + + // Strip the prefix and base64-decode → original bytes. + var encoded = outgoing["X-Bytes"][TimeoutHeaderPersistence.BinaryHeaderPrefix.Length..]; + var decoded = Convert.FromBase64String(encoded); + Assert.Equal(originalBytes, decoded); + } + + [Fact] + public void BuildOutgoingHeaders_StringValuePassesThroughVerbatim() + { + // Inbound AMQP byte[] is eager-decoded to string before CaptureForStorage runs, so a + // user-supplied base64 string in headers comes through CaptureForStorage as a string, + // not byte[]. BuildOutgoingHeaders must NOT re-prefix it with "base64:" — the string + // arm of the value-conversion switch returns the string verbatim. + var stored = new Dictionary + { + ["X-Base64-String"] = Convert.ToBase64String(new byte[] { 0xDE, 0xAD, 0xBE, 0xEF }), + }; + + var outgoing = TimeoutHeaderPersistence.BuildOutgoingHeaders(stored); + + Assert.Equal("3q2+7w==", outgoing["X-Base64-String"]); + Assert.DoesNotContain(TimeoutHeaderPersistence.BinaryHeaderPrefix, outgoing["X-Base64-String"]); + } +} diff --git a/src/ServiceConnect.UnitTests/Timeouts/TimeoutHeaderPersistenceReservedHeadersTests.cs b/src/ServiceConnect.UnitTests/Timeouts/TimeoutHeaderPersistenceReservedHeadersTests.cs new file mode 100644 index 000000000..6f1a81a5c --- /dev/null +++ b/src/ServiceConnect.UnitTests/Timeouts/TimeoutHeaderPersistenceReservedHeadersTests.cs @@ -0,0 +1,45 @@ +using ServiceConnect.Interfaces; +using ServiceConnect.Services; +using Xunit; + +namespace ServiceConnect.UnitTests.Timeouts; + +public class TimeoutHeaderPersistenceReservedHeadersTests +{ + [Theory] + [InlineData(HeaderKeys.RetryCount)] + [InlineData(HeaderKeys.CorrelationId)] + [InlineData(HeaderKeys.Priority)] + public void CaptureForStorage_DropsReservedHeader(string reservedKey) + { + var headers = new Dictionary + { + [reservedKey] = "should-not-be-captured", + ["UserHeader"] = "should-be-captured", + }; + + var captured = TimeoutHeaderPersistence.CaptureForStorage(headers); + + Assert.False(captured.ContainsKey(reservedKey), + $"{reservedKey} must not be persisted into stored timeout headers — re-emitting it as a fresh outbound message corrupts the per-delivery semantics."); + Assert.True(captured.ContainsKey("UserHeader")); + } + + [Theory] + [InlineData(HeaderKeys.RetryCount)] + [InlineData(HeaderKeys.CorrelationId)] + [InlineData(HeaderKeys.Priority)] + public void BuildOutgoingHeaders_DropsReservedHeader(string reservedKey) + { + var stored = new Dictionary + { + [reservedKey] = "stale-value", + ["UserHeader"] = "carry-through", + }; + + var outgoing = TimeoutHeaderPersistence.BuildOutgoingHeaders(stored); + + Assert.False(outgoing.ContainsKey(reservedKey)); + Assert.True(outgoing.ContainsKey("UserHeader")); + } +} diff --git a/src/ServiceConnect.sln b/src/ServiceConnect.sln deleted file mode 100644 index 07a56a693..000000000 --- a/src/ServiceConnect.sln +++ /dev/null @@ -1,304 +0,0 @@ -Microsoft Visual Studio Solution File, Format Version 12.00 -# Visual Studio Version 17 -VisualStudioVersion = 17.8.34309.116 -MinimumVisualStudioVersion = 10.0.40219.1 -Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = ".nuget", ".nuget", "{F6AA773B-5C5E-4EAA-AF50-3579298ECC5C}" - 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GlobalSection(ExtensibilityGlobals) = postSolution - SolutionGuid = {E19DEF92-298E-4C92-8796-9BEDA49B6C39} - EndGlobalSection -EndGlobal diff --git a/src/ServiceConnect.slnx b/src/ServiceConnect.slnx new file mode 100644 index 000000000..d95dff202 --- /dev/null +++ b/src/ServiceConnect.slnx @@ -0,0 +1,21 @@ + + + + + + + + + + + + + + + + + + + + + diff --git a/src/ServiceConnect/Bus.cs b/src/ServiceConnect/Bus.cs index d19be26ec..c26bd0936 100644 --- a/src/ServiceConnect/Bus.cs +++ b/src/ServiceConnect/Bus.cs @@ -1,888 +1,1149 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Concurrent; -using System.Collections.Generic; -using System.Diagnostics; -using System.Linq; -using System.Reflection; -using System.Text; -using System.Threading.Tasks; -using Newtonsoft.Json; -using ServiceConnect.Core; +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging; +using ServiceConnect.Diagnostics; using ServiceConnect.Interfaces; - -namespace ServiceConnect +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Interfaces.Exceptions; +using ServiceConnect.Interfaces.Options; +using ServiceConnect.Services; + +namespace ServiceConnect; + +/// +/// Default implementation that coordinates serialization, filtering, +/// transport dispatch, request-reply tracking, and message consumption. +/// +internal sealed class Bus : IBus { - public class Bus : IBus + private readonly IMessageSerializer _serializer; + private readonly IFilterPipeline _filterPipeline; + private readonly ISendMessagePipeline _sendPipeline; + private readonly IRequestReplyManager _requestReplyManager; + private readonly ILogger _logger; + private readonly IQueueConfiguration _queueConfig; + private readonly IMessageDispatcher _dispatcher; + private readonly IReadOnlyList _handlerReferences; + private readonly IConsumer? _consumer; + private readonly IProducer? _producer; + private readonly ITimeoutStore? _timeoutStore; + private readonly IConsumeContextAccessor _consumeContextAccessor; + private readonly IServiceScopeFactory _scopeFactory; + private readonly IConsumeScopeAccessor _scopeAccessor; + private readonly IBusConfiguration _busConfig; + private readonly TimeProvider _timeProvider; + private readonly bool _hasOutgoingFilters; +#if NET9_0_OR_GREATER + private readonly System.Threading.Lock _stateLock = new(); +#else + private readonly object _stateLock = new(); +#endif + private readonly SemaphoreSlim _lifecycleSemaphore = new(1, 1); + private volatile bool _consuming; + private bool _stopped; + // 0 = alive, 1 = disposed. Accessed via Interlocked/Volatile only — never under _stateLock — + // so DisposeAsync can publish disposal atomically without ordering it against the lifecycle semaphore. + private int _disposed; + // 0 = warning not yet emitted, 1 = warning already logged. Latched via Interlocked.Exchange + // so the warning fires at most once per Bus instance even under concurrent PublishAsync calls. + private int _routingKeyShimWarned; + + internal Bus( + IMessageSerializer serializer, + IFilterPipeline filterPipeline, + ISendMessagePipeline sendPipeline, + IRequestReplyManager requestReplyManager, + ILogger logger, + IQueueConfiguration queueConfig, + IMessageDispatcher dispatcher, + IReadOnlyList handlerReferences, + IPipelineConfiguration pipelineConfig, + IServiceScopeFactory scopeFactory, + IConsumeScopeAccessor scopeAccessor, + IConsumer? consumer = null, + IProducer? producer = null, + ITimeoutStore? timeoutStore = null, + IConsumeContextAccessor? consumeContextAccessor = null, + IBusConfiguration? busConfig = null, + TimeProvider? timeProvider = null) { - private readonly IBusContainer _container; - private IConsumer _consumer; - private bool _startedConsuming; - private readonly ExpiredTimeoutsPoller _expiredTimeoutsPoller; - private readonly ILogger _logger; - private readonly IProcessMessagePipeline _processMessagePipeline; - private readonly ISendMessagePipeline _sendMessagePipeline; - private readonly BusState _busState; - private readonly ConcurrentDictionary _typeLookup = new(); - - public IConfiguration Configuration { get; set; } - - public Bus(IConfiguration configuration) + _serializer = serializer ?? throw new ArgumentNullException(nameof(serializer)); + _filterPipeline = filterPipeline ?? throw new ArgumentNullException(nameof(filterPipeline)); + _sendPipeline = sendPipeline ?? throw new ArgumentNullException(nameof(sendPipeline)); + _requestReplyManager = requestReplyManager ?? throw new ArgumentNullException(nameof(requestReplyManager)); + _logger = logger ?? throw new ArgumentNullException(nameof(logger)); + _queueConfig = queueConfig ?? throw new ArgumentNullException(nameof(queueConfig)); + _dispatcher = dispatcher ?? throw new ArgumentNullException(nameof(dispatcher)); + _handlerReferences = handlerReferences ?? throw new ArgumentNullException(nameof(handlerReferences)); + if (pipelineConfig == null) { - _busState = new BusState(); - - Configuration = configuration; - - _logger = configuration.GetLogger(); - _container = configuration.GetContainer(); - _processMessagePipeline = configuration.GetProcessMessagePipeline(_busState); - _sendMessagePipeline = configuration.GetSendMessagePipeline(); - - _container.Initialize(); - - if (configuration.AddBusToContainer) - { - _container.AddBus(this); - } - - if (configuration.ScanForMesssageHandlers) - { - _container.ScanForHandlers(); - } + throw new ArgumentNullException(nameof(pipelineConfig)); + } - if (configuration.AutoStartConsuming) - { - StartConsuming(); - } + _hasOutgoingFilters = pipelineConfig.OutgoingFilters.Count > 0; + _scopeFactory = scopeFactory ?? throw new ArgumentNullException(nameof(scopeFactory)); + _scopeAccessor = scopeAccessor ?? throw new ArgumentNullException(nameof(scopeAccessor)); + _consumer = consumer; + _producer = producer; + _timeoutStore = timeoutStore; + _consumeContextAccessor = consumeContextAccessor ?? new ConsumeContextAccessor(); + // busConfig is optional for test call sites; production always supplies it via ServiceCollectionExtensions. + // When absent, fall back to the standard 30-second dispose timeout so the safety bound still applies. + _busConfig = busConfig ?? new Configuration.BusConfiguration(); + // TimeProvider is optional so test call sites can construct a Bus without DI; production + // wiring threads sp.GetService() through. RequestTimeoutAsync uses this so + // FakeTimeProvider-driven tests of process-manager scenarios match the wall-clock + // semantics of the rest of the time-dependent surface (timeout store, header timestamps). + _timeProvider = timeProvider ?? TimeProvider.System; + } - if (configuration.EnableProcessManagerTimeouts) - { - _expiredTimeoutsPoller = new ExpiredTimeoutsPoller(this); - _expiredTimeoutsPoller.Start(); - } + /// + /// + /// True only when (a) the bus has started consuming, (b) the broker has not + /// cancelled the consumer (basic.cancel: queue deleted, policy expired, mirror + /// promoted), and (c) the bus has not started disposing. The dispose check uses + /// _disposed (set under Interlocked.Exchange in DisposeAsync) which becomes + /// visible immediately at the moment dispose is initiated, without depending on + /// the subsequent _consuming = false write inside StopConsumingCoreAsync. + /// + public bool IsConsuming => + _consuming + && Volatile.Read(ref _disposed) == 0 + && !(_consumer?.IsCancelledByBroker ?? false); + + /// + public bool IsCancelledByBroker => _consumer?.IsCancelledByBroker ?? false; + + /// + /// + /// True once StopConsumingAsync has flipped _stopped, OR DisposeAsync has flipped + /// _disposed. Both transitions are latched (never reset), so this signal correctly + /// distinguishes "intentional shutdown" from "transient disconnect / pre-start" — the + /// health check uses it to bypass the recovery-grace window on shutdown. + /// + public bool IsStopped => Volatile.Read(ref _stopped) || Volatile.Read(ref _disposed) != 0; + + /// + public async Task PublishAsync(T message, PublishOptions? options = null, CancellationToken cancellationToken = default) where T : Message + { + ThrowIfDisposed(); + ArgumentNullException.ThrowIfNull(message); + cancellationToken.ThrowIfCancellationRequested(); + var prep = await PrepareOutboundAsync(message, options?.Headers, cancellationToken).ConfigureAwait(false); + if (prep.Stopped) + { + throw new OutgoingFiltersBlockedException("Outgoing filters blocked the published message."); } + var messageBytes = prep.Bytes; + var headers = prep.Headers; - private void StartAggregatorTimers() + if (options?.RoutingKey is { Length: > 0 } && + _producer is not null && + !_producer.SupportsRoutingKey && + Interlocked.Exchange(ref _routingKeyShimWarned, 1) == 0) { - IEnumerable instances = _container.GetHandlerTypes().Where(x => x.HandlerType.GetTypeInfo().BaseType != null && - x.HandlerType.GetTypeInfo().BaseType.GetTypeInfo().IsGenericType && - x.HandlerType.GetTypeInfo().BaseType.GetGenericTypeDefinition() == typeof(Aggregator<>)); - foreach (HandlerReference handlerReference in instances) - { - object aggregator = _container.GetInstance(handlerReference.HandlerType); - - IAggregatorProcessor processor = Configuration.GetAggregatorProcessor(Configuration.GetAggregatorPersistor(), _container, handlerReference.HandlerType); - if (!_busState.AggregatorProcessors.ContainsKey(handlerReference.MessageType)) - { - _busState.AggregatorProcessors.Add(handlerReference.MessageType, processor); - } - - TimeSpan timeout = (TimeSpan)handlerReference.HandlerType.GetMethod("Timeout").Invoke(aggregator, new object[] { }); - - if (timeout != default) - { - MethodInfo processManagerProcessorMethod = processor.GetType().GetMethod("StartTimer"); - MethodInfo genericProcessManagerProcessorMethod = processManagerProcessorMethod.MakeGenericMethod(handlerReference.MessageType); - _ = genericProcessManagerProcessorMethod.Invoke(processor, new object[] { timeout }); - } - } + _logger.LogWarning( + "PublishOptions.RoutingKey was supplied but the registered IProducer ({ProducerType}) reports SupportsRoutingKey=false; the key is being dropped on the wire. Update the transport implementation or remove the RoutingKey from PublishOptions to silence this warning.", + _producer.GetType().FullName); } - /// - /// Instantiates a Bus instance, including any configuration. - /// - /// A lambda that configures that sets the Bus configuration. - /// The configured instance of the Bus. - public static IBus Initialize(Action action) + if (options?.RoutingKey is { } routingKey) { - Configuration configuration = new(); - action(configuration); - - return new Bus(configuration); + headers[HeaderKeys.RoutingKey] = routingKey; } - /// - /// Instantiates Bus using the default configuration. - /// - /// The configured instance of the Bus. - public static IBus Initialize() + // Resolve the effective routing key: caller-supplied options take precedence, but + // an outgoing IFilter that wrote HeaderKeys.RoutingKey into the envelope (the + // pre-extract path) should also reach the AMQP basic.publish routing-key slot. + // Without this read-back, filter-mutated routing keys are stamped onto the wire + // headers but the producer's BasicPublishAsync still passes empty-string for + // routing-key, so topic-exchange dispatch is silently dropped. + string? effectiveRoutingKey = options?.RoutingKey; + if (effectiveRoutingKey is null && headers.TryGetValue(HeaderKeys.RoutingKey, out var headerRoutingKey) && !string.IsNullOrEmpty(headerRoutingKey)) { - Configuration configuration = new(); - return new Bus(configuration); + effectiveRoutingKey = headerRoutingKey; } - public void StartConsuming() + // Snapshot the prepared headers before the publish pipeline mutates them (trace + // propagation, dedup keys, …) so each polymorphic ancestor hop below starts from the + // same clean header set and gets its own per-hop pipeline mutations. MessageId is + // already stamped into these headers, so every hop shares the one id, as master does. + var baseHeaders = new Dictionary(headers, StringComparer.Ordinal); + + var context = new SendContext { - if (_startedConsuming) + Message = message, + MessageType = typeof(T), + MessageBytes = messageBytes, + Headers = headers, + EndPoint = null, + RoutingKey = effectiveRoutingKey, + Operation = SendOperation.Publish, + }; + await _sendPipeline.ExecutePublishMessagePipelineAsync(context, cancellationToken).ConfigureAwait(false); + + // Polymorphic fan-out: publish the same body to each ancestor type's exchange (walking + // BaseType up to, but excluding, Message), re-stamped with that ancestor's TypeName, so a + // subscriber bound to a base-type exchange receives derived messages. The producer derives + // the exchange name and stamps TypeName/FullTypeName from SendContext.MessageType, so + // varying only MessageType per hop reproduces master's recursive Publish behaviour. + for (var ancestor = typeof(T).BaseType; + ancestor is not null && ancestor != typeof(Message); + ancestor = ancestor.BaseType) + { + cancellationToken.ThrowIfCancellationRequested(); + var ancestorContext = new SendContext { - return; - } - - StartAggregatorTimers(); + Message = message, + MessageType = ancestor, + MessageBytes = messageBytes, + Headers = new Dictionary(baseHeaders, StringComparer.Ordinal), + EndPoint = null, + RoutingKey = effectiveRoutingKey, + Operation = SendOperation.Publish, + }; + await _sendPipeline.ExecutePublishMessagePipelineAsync(ancestorContext, cancellationToken).ConfigureAwait(false); + } + } - string queueName = Configuration.TransportSettings.QueueName; + /// + public async Task SendAsync(T message, SendOptions? options = null, CancellationToken cancellationToken = default) where T : Message + { + ThrowIfDisposed(); + ArgumentNullException.ThrowIfNull(message); + cancellationToken.ThrowIfCancellationRequested(); - IEnumerable instances = _container.GetHandlerTypes(); - IList messageTypes = instances.Where(x => !string.IsNullOrEmpty(x.MessageType.FullName)) - .Select(reference => reference.MessageType.FullName.Replace(".", string.Empty)) - .ToList(); + var prep = await PrepareOutboundAsync(message, options?.Headers, cancellationToken).ConfigureAwait(false); + if (prep.Stopped) + { + throw new OutgoingFiltersBlockedException("Outgoing filters blocked the sent message."); + } + var messageBytes = prep.Bytes; + var headers = prep.Headers; - IConsumer consumer = Configuration.GetConsumer(); - consumer.StartConsuming(queueName, messageTypes, ConsumeMessageEvent, Configuration); - _consumer = consumer; + var context = new SendContext + { + Message = message, + MessageType = typeof(T), + MessageBytes = messageBytes, + Headers = headers, + EndPoint = options?.EndPoint, + RoutingKey = null, + Operation = SendOperation.Send, + }; + await _sendPipeline.ExecuteSendMessagePipelineAsync(context, cancellationToken).ConfigureAwait(false); + } - _startedConsuming = true; + /// + public async Task SendToManyAsync(T message, IReadOnlyList endPoints, SendOptions? options = null, CancellationToken cancellationToken = default) where T : Message + { + ThrowIfDisposed(); + ArgumentNullException.ThrowIfNull(message); + cancellationToken.ThrowIfCancellationRequested(); + ArgumentNullException.ThrowIfNull(endPoints); + if (endPoints.Count == 0) + { + throw new ArgumentException("SendToManyAsync requires at least one endpoint.", nameof(endPoints)); } - public void Publish(T message, Dictionary headers = null) where T : Message + var prep = await PrepareOutboundAsync(message, options?.Headers, cancellationToken).ConfigureAwait(false); + if (prep.Stopped) { - Publish(message, null, headers); + throw new OutgoingFiltersBlockedException("Outgoing filters blocked the multi-endpoint send."); } + var messageBytes = prep.Bytes; + var headers = prep.Headers; - public void Publish(T message, string routingKey, Dictionary headers = null) where T : Message + List? endpointFailures = null; + foreach (var endpoint in endPoints) { - PublishEventArgs eventArgs = new() + // Per-iteration shallow copy: ISendMessageMiddleware writes to ctx.Headers + // (telemetry stamps, signing, dedup keys) and per-endpoint mutations would + // otherwise leak into subsequent iterations of this fan-out loop. The copy + // is O(n) on header count (typically < 10 entries); negligible per-message. + var perEndpointHeaders = new Dictionary(headers, StringComparer.Ordinal); + + var context = new SendContext { Message = message, - RoutingKey = routingKey, - Headers = headers + MessageType = typeof(T), + MessageBytes = messageBytes, + Headers = perEndpointHeaders, + EndPoint = endpoint, + RoutingKey = null, + Operation = SendOperation.Send, }; - ServiceConnectActivitySource.TryGetExistingContext(eventArgs.Headers, out ActivityContext existingContext); - using Activity activity = ServiceConnectActivitySource.StartPublishActivity(eventArgs, existingContext); - if (activity is not null) + try { - headers = PopulateActivityAndPropagateTraceId(eventArgs, activity); + await _sendPipeline.ExecuteSendMessagePipelineAsync(context, cancellationToken).ConfigureAwait(false); } - - string messageString = JsonConvert.SerializeObject(message); - byte[] messageBytes = Encoding.UTF8.GetBytes(messageString); - - if (Configuration.OutgoingFilters != null && Configuration.OutgoingFilters.Count > 0) + catch (OperationCanceledException oce) when (cancellationToken.IsCancellationRequested) { - Envelope envelope = new() + // Caller-initiated cancellation mid-fan-out must surface the OCE (callers expect to + // detect cancellation), but any failures already accumulated for prior endpoints + // would otherwise be silently dropped. Wrap them with the OCE so the caller sees + // both: AggregateException's InnerExceptions enumeration starts with the OCE for + // OCE-shape detection upstream. + // + // The `when (cancellationToken.IsCancellationRequested)` filter is load-bearing: + // an OCE thrown from a middleware-internal linked CTS (custom timeout, per-endpoint + // deadline) carries a different token and is NOT caller cancellation. Those fall + // through to the generic catch and aggregate as endpoint failures, matching the + // semantics of Producer.SendAsync's per-endpoint loop. + if (endpointFailures is { Count: > 0 }) { - Headers = headers == null ? new Dictionary() : headers.ToDictionary(x => x.Key, x => (object)x.Value), - Body = messageBytes - }; - - bool stop = ProcessFilters(Configuration.OutgoingFilters, envelope); - if (stop) - { - return; + var combined = new List(endpointFailures.Count + 1) { oce }; + combined.AddRange(endpointFailures); + throw new AggregateException( + $"SendToManyAsync of message type '{typeof(T).FullName}' was cancelled after one or more endpoint failures.", + combined); } - - headers = envelope.Headers.ToDictionary(x => x.Key, x => x.Value.ToString()); - messageBytes = envelope.Body; + throw; } - - // Add routing key to the message header - if (!string.IsNullOrEmpty(routingKey)) + catch (ObjectDisposedException ode) { - if (null != headers) - { - if (!headers.ContainsKey("RoutingKey")) - { - headers["RoutingKey"] = routingKey; - } - } - else + // The send pipeline (or one of its components) was disposed by a concurrent + // shutdown. Every remaining iteration would throw the same ODE; aggregating + // N identical ODEs hides the real cause behind a list of duplicates. Mirror + // Producer.SendAsync's per-endpoint loop and surface the ODE directly, + // wrapping any failures collected on prior endpoints so they aren't lost. + if (endpointFailures is { Count: > 0 }) { - headers = new Dictionary { { "RoutingKey", routingKey } }; + var combined = new List(endpointFailures.Count + 1) { ode }; + combined.AddRange(endpointFailures); + throw new AggregateException( + $"SendToManyAsync of message type '{typeof(T).FullName}' aborted after dispose with one or more endpoint failures.", + combined); } + throw; } - - _sendMessagePipeline.ExecutePublishMessagePipeline(typeof(T), messageBytes, headers); - - Type newBaseType = typeof(T).GetTypeInfo().BaseType; - if (newBaseType != null && newBaseType.Name != typeof(Message).Name) + catch (Exception ex) { - MethodInfo publish = GetType().GetMethods().First(m => m.Name == "Publish" && m.GetParameters()[1].Name == "routingKey"); - MethodInfo genericPublish = publish.MakeGenericMethod(newBaseType); - _ = genericPublish.Invoke(this, new object[] { message, routingKey, (null == headers) ? null : new Dictionary(headers) }); + (endpointFailures ??= []).Add(ex); } } - public IList PublishRequest(TRequest message, int? expectedCount = null, Dictionary headers = null, int timeout = 10000) where TRequest : Message + if (endpointFailures is { Count: > 0 }) { - Guid messageId = Guid.NewGuid(); - IRequestConfiguration configuration = Configuration.GetRequestConfiguration(messageId); - - List responses = new(); - configuration.EndpointsCount = expectedCount ?? -1; - - Task task = configuration.SetHandler(r => responses.Add((TReply)r)); - - lock (_busState.RequestLock) - { - _busState.RequestConfigurations[messageId.ToString()] = configuration; - } - - headers ??= new Dictionary(); - - headers["RequestMessageId"] = messageId.ToString(); + throw new AggregateException( + $"One or more endpoints failed during SendToManyAsync of message type '{typeof(T).FullName}'.", + endpointFailures); + } + } - string messageString = JsonConvert.SerializeObject(message); - byte[] messageBytes = Encoding.UTF8.GetBytes(messageString); + /// + public async Task SendRequestAsync(TRequest message, RequestOptions? options = null, CancellationToken cancellationToken = default) + where TRequest : Message where TReply : Message + { + ThrowIfDisposed(); + ArgumentNullException.ThrowIfNull(message); + cancellationToken.ThrowIfCancellationRequested(); + var requestOptions = options ?? RequestOptions.Default; + var prep = await PrepareOutboundForRequestAsync(message, requestOptions.Headers, cancellationToken).ConfigureAwait(false); + if (prep.Stopped) + { + throw new OutgoingFiltersBlockedException("Outgoing filters blocked the request message."); + } + var headers = prep.Headers; - if (Configuration.OutgoingFilters != null && Configuration.OutgoingFilters.Count > 0) - { - Envelope envelope = new() - { - Headers = headers == null ? new Dictionary() : headers.ToDictionary(x => x.Key, x => (object)x.Value), - Body = messageBytes - }; + return await _requestReplyManager.SendRequestAsync( + message, + headers, + requestOptions, + cancellationToken).ConfigureAwait(false); + } - bool stop = ProcessFilters(Configuration.OutgoingFilters, envelope); - if (stop) - { - return responses; - } + /// + public async Task> SendRequestMultiAsync(TRequest message, RequestOptions? options = null, CancellationToken cancellationToken = default) + where TRequest : Message where TReply : Message + { + ThrowIfDisposed(); + ArgumentNullException.ThrowIfNull(message); + cancellationToken.ThrowIfCancellationRequested(); + var requestOptions = options ?? RequestOptions.Default; + var prep = await PrepareOutboundForRequestAsync(message, requestOptions.Headers, cancellationToken).ConfigureAwait(false); + if (prep.Stopped) + { + throw new OutgoingFiltersBlockedException("Outgoing filters blocked the request message."); + } + var headers = prep.Headers; - headers = envelope.Headers.ToDictionary(x => x.Key, x => x.Value.ToString()); - messageBytes = envelope.Body; - } + return await _requestReplyManager.SendRequestMultiAsync( + message, + headers, + requestOptions, + cancellationToken).ConfigureAwait(false); + } - _sendMessagePipeline.ExecutePublishMessagePipeline(typeof(TRequest), messageBytes, headers); + /// + public async Task PublishRequestAsync(TRequest message, Action onReply, RequestOptions? options = null, CancellationToken cancellationToken = default) + where TRequest : Message where TReply : Message + { + ThrowIfDisposed(); + ArgumentNullException.ThrowIfNull(message); + ArgumentNullException.ThrowIfNull(onReply); + cancellationToken.ThrowIfCancellationRequested(); + var requestOptions = options ?? RequestOptions.Default; - _ = Task.WaitAll(new[] { task }, timeout); + if (!string.IsNullOrEmpty(requestOptions.EndPoint)) + { + throw new ArgumentException("PublishRequestAsync does not support EndPoint. Use SendRequestAsync for single-destination requests.", nameof(options)); + } - return responses; + var prep = await PrepareOutboundForRequestAsync(message, requestOptions.Headers, cancellationToken).ConfigureAwait(false); + if (prep.Stopped) + { + throw new OutgoingFiltersBlockedException("Outgoing filters blocked the request message."); } + var headers = prep.Headers; + + await _requestReplyManager.PublishRequestAsync( + message, + headers, + requestOptions, + onReply, + cancellationToken).ConfigureAwait(false); + } - public void Send(T message, Dictionary headers = null) where T : Message + /// + public async Task RouteAsync(T message, IReadOnlyList destinations, CancellationToken cancellationToken = default) where T : Message + { + ThrowIfDisposed(); + cancellationToken.ThrowIfCancellationRequested(); + ArgumentNullException.ThrowIfNull(message); + ArgumentNullException.ThrowIfNull(destinations); + + // Snapshot to defend against caller mutation between validation and use. + var snapshot = destinations.ToArray(); + if (snapshot.Length == 0) { - SendEventArgs eventArgs = new() - { - Message = message, - Headers = headers - }; - ServiceConnectActivitySource.TryGetExistingContext(eventArgs.Headers, out ActivityContext existingContext); - using Activity activity = ServiceConnectActivitySource.StartSendAcitivty(eventArgs, existingContext); - if (activity is not null) + throw new ArgumentException( + "RouteAsync requires at least one destination.", + nameof(destinations)); + } + for (int i = 0; i < snapshot.Length; i++) + { + // Comma is the in-header separator for the routing-slip; reject explicitly so + // the error names the structural cause rather than the generic "reserved char". + if (snapshot[i] != null && snapshot[i].Contains(',')) { - headers = PopulateActivityAndPropagateTraceId(eventArgs, activity); + throw new ArgumentException( + $"Destination at index {i} contains a comma ('{snapshot[i]}'); commas are reserved as the routing-slip separator.", + nameof(destinations)); } - - string messageString = JsonConvert.SerializeObject(message); - byte[] messageBytes = Encoding.UTF8.GetBytes(messageString); - - if (Configuration.OutgoingFilters != null && Configuration.OutgoingFilters.Count > 0) + // Receive-side ForwardRoutingSlipAsync rejects the same set of characters / lengths + // and logs+drops the message. Mirror the validator on the send side so producers + // fail fast with a typed ArgumentException instead of stalling on an in-flight + // message that nack/dead-letters at the next hop with no caller signal. + var failure = RoutingSlipDestinationValidator.GetFailureReason(snapshot[i]); + if (failure is not null) { - Envelope envelope = new() - { - Headers = headers == null ? new Dictionary() : headers.ToDictionary(x => x.Key, x => (object)x.Value), - Body = messageBytes - }; - - bool stop = ProcessFilters(Configuration.OutgoingFilters, envelope); - if (stop) - { - return; - } - - headers = envelope.Headers.ToDictionary(x => x.Key, x => x.Value.ToString()); - messageBytes = envelope.Body; + throw new ArgumentException( + $"Destination at index {i} ('{snapshot[i]}') is invalid: {failure}.", + nameof(destinations)); } - - _sendMessagePipeline.ExecuteSendMessagePipeline(typeof(T), messageBytes, headers); } - public void Send(string endPoint, T message, Dictionary headers = null) where T : Message + var firstDestination = snapshot[0]; + var prep = await PrepareOutboundAsync(message, null, cancellationToken).ConfigureAwait(false); + if (prep.Stopped) { - SendEventArgs eventArgs = new() - { - EndPoint = endPoint, - Message = message, - Headers = headers - }; - ServiceConnectActivitySource.TryGetExistingContext(eventArgs.Headers, out ActivityContext existingContext); - using Activity activity = ServiceConnectActivitySource.StartSendAcitivty(eventArgs); - - string messageString = JsonConvert.SerializeObject(message); - byte[] messageBytes = Encoding.UTF8.GetBytes(messageString); - - if (Configuration.OutgoingFilters != null && Configuration.OutgoingFilters.Count > 0) - { - Envelope envelope = new() - { - Headers = headers == null ? new Dictionary() : headers.ToDictionary(x => x.Key, x => (object)x.Value), - Body = messageBytes - }; - - bool stop = ProcessFilters(Configuration.OutgoingFilters, envelope); - if (stop) - { - return; - } - - headers = envelope.Headers.ToDictionary(x => x.Key, x => x.Value.ToString()); - messageBytes = envelope.Body; - } + throw new OutgoingFiltersBlockedException("Outgoing filters blocked the routed message."); + } + var messageBytes = prep.Bytes; + var headers = prep.Headers; - _sendMessagePipeline.ExecuteSendMessagePipeline(typeof(T), messageBytes, headers, endPoint); + if (snapshot.Length > 1) + { + headers[HeaderKeys.RoutingSlip] = BuildRoutingSlip(snapshot); } - public void Send(IList endPoints, T message, Dictionary headers = null) where T : Message + // Cross-service hop counter. Each RouteAsync hop — whether driven by the framework's + // own ForwardRoutingSlipAsync or by a handler that explicitly invokes RouteAsync — + // increments the inbound counter (defaulting to 0 for the first hop in a flow) and + // stamps it on the outbound headers. If the total exceeds MaxRoutingSlipHops, the + // forward is refused. Without this, a service that receives a near-end-of-slip + // message could publish a fresh 32-entry slip and amplify the flow indefinitely + // across services; the per-slip cap in HandlerProcessor only bounds one hop's slip + // length, not the total flow. + var hopsCompleted = ReadInboundHopsCompleted(); + var outboundHops = hopsCompleted + 1; + if (outboundHops > _busConfig.MaxRoutingSlipHops) { - SendEventArgs eventArgs = new() - { - EndPoints = endPoints, - Message = message, - Headers = headers - }; - ServiceConnectActivitySource.TryGetExistingContext(eventArgs.Headers, out ActivityContext existingContext); - using Activity activity = ServiceConnectActivitySource.StartSendAcitivty(eventArgs); + throw new InvalidOperationException( + $"Total routing-slip hops ({outboundHops}) exceeds the configured MaxRoutingSlipHops cap ({_busConfig.MaxRoutingSlipHops}); " + + "rejecting forward to prevent cross-service amplification."); + } + var context = new SendContext + { + Message = message, + MessageType = typeof(T), + MessageBytes = messageBytes, + Headers = headers, + EndPoint = firstDestination, + RoutingKey = null, + Operation = SendOperation.Send, + RoutingSlipHopsCompleted = outboundHops, + }; + await _sendPipeline.ExecuteSendMessagePipelineAsync(context, cancellationToken).ConfigureAwait(false); + } - string messageString = JsonConvert.SerializeObject(message); - byte[] messageBytes = Encoding.UTF8.GetBytes(messageString); + private int ReadInboundHopsCompleted() + { + var inboundHeaders = _consumeContextAccessor.CurrentHeaders; + if (inboundHeaders is null || + !inboundHeaders.TryGetValue(HeaderKeys.RoutingSlipHopsCompleted, out var raw)) + { + return 0; + } + var decoded = HeaderDecoder.Decode(raw); + if (string.IsNullOrEmpty(decoded) || + !int.TryParse(decoded, System.Globalization.NumberStyles.Integer, System.Globalization.CultureInfo.InvariantCulture, out var hops) || + hops < 0) + { + return 0; + } + // Clamp to MaxRoutingSlipHops so `hops + 1` on the caller's side never overflows. + // Without this, a crafted inbound header carrying int.MaxValue wraps to int.MinValue + // and slips past the `outboundHops > MaxRoutingSlipHops` guard — the per-hop cap + // is the framework's only cross-service amplification control, so silent overflow + // is a real bypass, not theory. + return Math.Min(hops, _busConfig.MaxRoutingSlipHops); + } - if (Configuration.OutgoingFilters != null && Configuration.OutgoingFilters.Count > 0) - { - Envelope envelope = new() - { - Headers = headers == null ? new Dictionary() : headers.ToDictionary(x => x.Key, x => (object)x.Value), - Body = messageBytes - }; + /// + public IMessageBusWriteStream CreateStream(string endpoint) where T : Message + { + ArgumentException.ThrowIfNullOrWhiteSpace(endpoint); + ThrowIfDisposed(); + if (_producer == null) + { + throw new InvalidOperationException("No producer registered. Cannot create stream."); + } - bool stop = ProcessFilters(Configuration.OutgoingFilters, envelope); - if (stop) - { - return; - } + return new MessageBusWriteStream(_producer, endpoint, typeof(T)); + } - headers = envelope.Headers.ToDictionary(x => x.Key, x => x.Value.ToString()); - messageBytes = envelope.Body; - } - foreach (string endPoint in endPoints) - { - _sendMessagePipeline.ExecuteSendMessagePipeline(typeof(T), messageBytes, headers, endPoint); - } + /// + public async Task StartConsumingAsync(CancellationToken cancellationToken = default) + { + ThrowIfDisposed(); + if (string.IsNullOrWhiteSpace(_queueConfig.QueueName)) + { + throw new InvalidOperationException( + "QueueName is not set. Configure via ServiceConnectBuilder.ConfigureQueues(q => q.QueueName = \"...\") before starting consumption."); } - public void SendRequest(TRequest message, Action callback, Dictionary headers = null) where TRequest : Message where TReply : Message + try { - SendRequest(null, message, callback, headers); + await _lifecycleSemaphore.WaitAsync(cancellationToken).ConfigureAwait(false); + } + catch (ObjectDisposedException) + { + // Dispose won the race between ThrowIfDisposed and WaitAsync — surface as a typed Bus + // disposal so callers see one exception type, not a raw SemaphoreSlim disposal. + throw new ObjectDisposedException(typeof(Bus).FullName); } - public void SendRequest(IList endPoints, TRequest message, Action> callback, Dictionary headers = null) where TRequest : Message where TReply : Message + try { - Guid messageId = Guid.NewGuid(); - IRequestConfiguration configuration = Configuration.GetRequestConfiguration(messageId); - configuration.EndpointsCount = endPoints.Count; + ThrowIfDisposed(); // re-check: Dispose may have completed after we acquired the semaphore - List responses = new(); + IConsumer localConsumer; + List messageTypeNames; - _ = configuration.SetHandler(r => + lock (_stateLock) { - responses.Add((TReply)r); - if (configuration.EndpointsCount == configuration.ProcessedCount) + if (_stopped) { - callback(responses); + throw new InvalidOperationException( + "Bus has been stopped; dispose it and create a new Bus instance to resume consuming."); } - }); - - lock (_busState.RequestLock) - { - _busState.RequestConfigurations[messageId.ToString()] = configuration; - } - - headers ??= new Dictionary(); - headers["RequestMessageId"] = messageId.ToString(); - - string messageString = JsonConvert.SerializeObject(message); - byte[] messageBytes = Encoding.UTF8.GetBytes(messageString); - - if (Configuration.OutgoingFilters != null && Configuration.OutgoingFilters.Count > 0) - { - Envelope envelope = new() + if (_consuming) { - Headers = headers.ToDictionary(x => x.Key, x => (object)x.Value), - Body = messageBytes - }; - - bool stop = ProcessFilters(Configuration.OutgoingFilters, envelope); - if (stop) - { - return; + throw new InvalidOperationException("Already consuming."); } - headers = envelope.Headers.ToDictionary(x => x.Key, x => x.Value.ToString()); - messageBytes = envelope.Body; - } - - foreach (string endPoint in endPoints) - { - _sendMessagePipeline.ExecuteSendMessagePipeline(typeof(TRequest), messageBytes, headers, endPoint); - } - } - - public void SendRequest(string endPoint, TRequest message, Action callback, Dictionary headers = null) where TRequest : Message where TReply : Message - { - Guid messageId = Guid.NewGuid(); - IRequestConfiguration configuration = Configuration.GetRequestConfiguration(messageId); - configuration.EndpointsCount = 1; - - _ = configuration.SetHandler(r => callback((TReply)r)); - - lock (_busState.RequestLock) - { - _busState.RequestConfigurations[messageId.ToString()] = configuration; - } - - headers ??= new Dictionary(); - - headers["RequestMessageId"] = messageId.ToString(); - - string messageString = JsonConvert.SerializeObject(message); - byte[] messageBytes = Encoding.UTF8.GetBytes(messageString); - - if (Configuration.OutgoingFilters != null && Configuration.OutgoingFilters.Count > 0) - { - Envelope envelope = new() + if (_consumer == null) { - Headers = headers.ToDictionary(x => x.Key, x => (object)x.Value), - Body = messageBytes - }; + throw new InvalidOperationException("No consumer registered. Call UseRabbitMQ() or register an IConsumer."); + } - bool stop = ProcessFilters(Configuration.OutgoingFilters, envelope); - if (stop) + var typeNameSet = new HashSet(_handlerReferences.Count, StringComparer.Ordinal); + foreach (var h in _handlerReferences) { - return; + typeNameSet.Add(MessageTypeExchangeName.From(h.MessageType)); } - headers = envelope.Headers.ToDictionary(x => x.Key, x => x.Value.ToString()); - messageBytes = envelope.Body; + messageTypeNames = [.. typeNameSet]; + + localConsumer = _consumer; } - if (string.IsNullOrEmpty(endPoint)) + _logger.LogInformation("Bus starting to consume on queue {QueueName} for {Count} message types.", + _queueConfig.QueueName, messageTypeNames.Count); + + // Flip _consuming = true BEFORE the await so health checks during the StartConsumingAsync + // window see Healthy. If the flag flipped after the await, broker dispatch could arrive + // in the gap and IsConsuming would return false during a perfectly-fine startup, + // surfacing as spurious health-check Unhealthy. Wrap the await in try/catch to roll + // the flag back on failure (the broker isn't actually consuming). + lock (_stateLock) { _consuming = true; } + try { - _sendMessagePipeline.ExecuteSendMessagePipeline(typeof(TRequest), messageBytes, headers); + // ConsumerEventHandler passes IDictionary; DispatchAsync accepts + // IReadOnlyDictionary. The transport always supplies Dictionary<,> + // (which implements both) so the as-cast succeeds on the hot path; the fallback + // copy handles any non-Dictionary<,> transport implementation. + await localConsumer.StartConsumingAsync(_queueConfig.QueueName, messageTypeNames, + (msg, type, hdrs, ct) => _dispatcher.DispatchAsync(msg, type, + hdrs as IReadOnlyDictionary + ?? new Dictionary(hdrs, StringComparer.Ordinal), + ct), + cancellationToken).ConfigureAwait(false); } - else + catch { - _sendMessagePipeline.ExecuteSendMessagePipeline(typeof(TRequest), messageBytes, headers, endPoint); + lock (_stateLock) { _consuming = false; } + throw; } } - - public TReply SendRequest(TRequest message, Dictionary headers = null, int timeout = 3000) where TRequest : Message where TReply : Message + finally { - return SendRequest(default(string), message, headers, timeout); + // Guard against the semaphore being disposed by a concurrent DisposeAsync that won the + // race after WaitAsync returned. A disposed-semaphore Release is benign here — we are + // already exiting — so swallow any ObjectDisposedException to avoid masking the real cause. + try { _lifecycleSemaphore.Release(); } + catch (ObjectDisposedException) { } } + } - public TReply SendRequest(string endPoint, TRequest message, Dictionary headers = null, int timeout = 3000) where TRequest : Message where TReply : Message + /// + /// + /// Idempotent on a disposed bus. The host's BusHostedService.StopAsync may run + /// AFTER the bus has been disposed by another shutdown path; throwing here + /// surfaced as a noisy ObjectDisposedException log on every shutdown. A disposed + /// bus is also a stopped bus (DisposeAsync calls StopConsumingCoreAsync), so the + /// idempotent contract is correct. + /// + public async Task StopConsumingAsync(CancellationToken cancellationToken = default) + { + if (Volatile.Read(ref _disposed) != 0) { - Guid messageId = Guid.NewGuid(); - IRequestConfiguration configuration = Configuration.GetRequestConfiguration(messageId); - configuration.EndpointsCount = 1; + return; + } - TReply response = default; + await StopConsumingCoreAsync(cancellationToken).ConfigureAwait(false); + } - Task task = configuration.SetHandler(r => - { - response = (TReply)r; - }); + /// + public async Task RequestTimeoutAsync(Guid correlationId, TimeSpan delay, CancellationToken cancellationToken = default) + { + ThrowIfDisposed(); + cancellationToken.ThrowIfCancellationRequested(); + if (_timeoutStore is null) + { + throw new InvalidOperationException("No ITimeoutStore is registered. Add persistence via UseInMemoryPersistence() or UseMongoDbPersistence() and set BusConfiguration.EnableProcessManagerTimeouts = true."); + } - lock (_busState.RequestLock) - { - _busState.RequestConfigurations[messageId.ToString()] = configuration; - } + // Empty correlation id is always a programmer error: TimeoutMessage dispatch + // would key on Guid.Empty and IProcessManagerFinder.FindData would never + // match, leaving a stray timeout row that gets retried-then-dropped. Fail + // fast so the bug surfaces at the offending call site, not at dispatch time. + if (correlationId == Guid.Empty) + { + throw new ArgumentException( + "Timeout correlation id must not be Guid.Empty. Pass the saga's own data.CorrelationId.", + nameof(correlationId)); + } - headers ??= new Dictionary(); + if (delay <= TimeSpan.Zero) + { + throw new ArgumentOutOfRangeException(nameof(delay), "Timeout delay must be positive."); + } - headers["RequestMessageId"] = messageId.ToString(); - string messageString = JsonConvert.SerializeObject(message); - byte[] messageBytes = Encoding.UTF8.GetBytes(messageString); + var data = new TimeoutData + { + Id = Guid.NewGuid(), + Destination = _queueConfig.QueueName, + ProcessManagerId = correlationId, + Time = _timeProvider.GetUtcNow() + delay, + Headers = TimeoutHeaderPersistence.CaptureForStorage(_consumeContextAccessor.CurrentHeaders) + }; + + await _timeoutStore.InsertTimeoutAsync(data, cancellationToken).ConfigureAwait(false); + } - if (Configuration.OutgoingFilters != null && Configuration.OutgoingFilters.Count > 0) + /// + /// Stops consuming without the disposed guard. Called from DisposeAsync, + /// which sets _disposed = true before invoking this -- a ThrowIfDisposed() + /// here would throw ObjectDisposedException and prevent clean shutdown. + /// Public callers must use StopConsumingAsync instead, which adds the guard. + /// + /// Token to cancel the semaphore wait. + /// + /// When supplied (DisposeAsync's path), the semaphore wait is bounded by this duration. + /// On timeout, teardown proceeds without the semaphore — the broker connection is about to + /// be torn down by DI's IServiceProvider disposal anyway, so proceeding is safe. When + /// absent (StopConsumingAsync's path), the wait blocks until cancellation. + /// + private async Task StopConsumingCoreAsync(CancellationToken cancellationToken = default, TimeSpan? semaphoreWaitTimeout = null) + { + bool semaphoreAcquired = false; + try + { + // When a timeout is provided (DisposeAsync's path) and the wait does not complete in + // time, proceed with teardown WITHOUT the semaphore. A concurrent StartConsumingAsync + // may still be mid-handshake; this is acceptable in dispose because the broker + // connection is about to be torn down by DI's IServiceProvider disposal anyway. + if (semaphoreWaitTimeout is { } timeout) { - Envelope envelope = new() - { - Headers = headers.ToDictionary(x => x.Key, x => (object)x.Value), - Body = messageBytes - }; - - bool stop = ProcessFilters(Configuration.OutgoingFilters, envelope); - if (stop) + semaphoreAcquired = await _lifecycleSemaphore.WaitAsync(timeout, cancellationToken).ConfigureAwait(false); + if (!semaphoreAcquired) { - return response; + _logger.LogWarning( + "Bus.StopConsumingCoreAsync timed out waiting for the lifecycle semaphore after {Timeout}; proceeding with teardown anyway.", + timeout); } - - headers = envelope.Headers.ToDictionary(x => x.Key, x => x.Value.ToString()); - messageBytes = envelope.Body; - } - - if (string.IsNullOrEmpty(endPoint)) - { - _sendMessagePipeline.ExecuteSendMessagePipeline(typeof(TRequest), messageBytes, headers); } else { - _sendMessagePipeline.ExecuteSendMessagePipeline(typeof(TRequest), messageBytes, headers, endPoint); + await _lifecycleSemaphore.WaitAsync(cancellationToken).ConfigureAwait(false); + semaphoreAcquired = true; } - _ = Task.WaitAll(new[] { task }, timeout); - - return !task.IsCompleted ? throw new TimeoutException() : response; - } - - public IList SendRequest(IList endPoints, TRequest message, Dictionary headers = null, int timeout = 10000) where TRequest : Message where TReply : Message - { - Guid messageId = Guid.NewGuid(); - IRequestConfiguration configuration = Configuration.GetRequestConfiguration(messageId); - - List responses = new(); - configuration.EndpointsCount = endPoints.Count; - - Task task = configuration.SetHandler(r => responses.Add((TReply)r)); - - lock (_busState.RequestLock) + // Capture the consumer reference under the state lock and the "was actually + // consuming" flag, then issue a graceful broker stop OUTSIDE the lock. Holding + // _stateLock around an awaited broker call would block other lifecycle queries + // (IsConsuming, IsCancelledByBroker) for the full graceful-shutdown timeout. + IConsumer? consumerToStop = null; + lock (_stateLock) { - _busState.RequestConfigurations[messageId.ToString()] = configuration; + _logger.LogInformation("Bus stopping message consumption."); + if (_consuming) + { + consumerToStop = _consumer; + _consuming = false; + // Stop is terminal: the IConsumer singleton is owned by DI and is reused + // across the host's lifetime, but once the bus has signalled stop we do + // not restart consumption on this Bus instance. Mark the bus stopped so + // attempted restarts throw a clear error instead of silently failing. + // A defensive stop on a bus that never started must leave it restartable. + // Volatile.Write so IsStopped readers (the health check) observe the + // latch without acquiring _stateLock. + Volatile.Write(ref _stopped, true); + } } - headers ??= new Dictionary(); - - headers["RequestMessageId"] = messageId.ToString(); - string messageString = JsonConvert.SerializeObject(message); - byte[] messageBytes = Encoding.UTF8.GetBytes(messageString); - - if (Configuration.OutgoingFilters != null && Configuration.OutgoingFilters.Count > 0) + // Issue the graceful broker stop. The transport BasicCancels each consumer + // host and drains in-flight handler invocations; without this, the broker + // keeps delivering messages until DI disposes the consumer (which can be + // arbitrarily later than BusHostedService.StopAsync returns) and the + // dispatch pipeline keeps running between BusHostedService.StopAsync and + // IConsumer.DisposeAsync. Third-party IConsumer impls inherit the no-op + // default-interface-method, in which case this is a documented no-op. + if (consumerToStop is not null) { - Envelope envelope = new() + try { - Headers = headers.ToDictionary(x => x.Key, x => (object)x.Value), - Body = messageBytes - }; - - bool stop = ProcessFilters(Configuration.OutgoingFilters, envelope); - if (stop) + await consumerToStop.StopConsumingAsync(cancellationToken).ConfigureAwait(false); + } + catch (OperationCanceledException) when (cancellationToken.IsCancellationRequested) { - return responses; + throw; + } + catch (Exception ex) + { + _logger.LogWarning(ex, "IConsumer.StopConsumingAsync threw during Bus.StopConsumingAsync; broker delivery may continue until consumer dispose."); } - - headers = envelope.Headers.ToDictionary(x => x.Key, x => x.Value.ToString()); - messageBytes = envelope.Body; - } - - foreach (string endPoint in endPoints) - { - _sendMessagePipeline.ExecuteSendMessagePipeline(typeof(TRequest), messageBytes, headers, endPoint); } - - _ = Task.WaitAll(new[] { task }, timeout); - - return responses; + // _consumer.DisposeAsync() is intentionally NOT called here. IConsumer is registered + // as a DI singleton; the host's IServiceProvider disposes it on host shutdown. The + // earlier double-dispose path (Bus disposing the transport directly) raced with DI's + // own teardown and forced a WaitAsync timeout-mask to keep the dispose path bounded. + // Removing the dispose call removes the timeout-mask path. } - - public void Route(T message, IList destinations) where T : Message + catch (ObjectDisposedException) { - string nextDestination = destinations.First(); - - destinations.RemoveAt(0); - - string destionationsJson = JsonConvert.SerializeObject(destinations); - - Dictionary headers = new() { { "RoutingSlip", destionationsJson } }; - string messageString = JsonConvert.SerializeObject(message); - byte[] messageBytes = Encoding.UTF8.GetBytes(messageString); - - if (Configuration.OutgoingFilters != null && Configuration.OutgoingFilters.Count > 0) + // The semaphore was disposed by a concurrent DisposeAsync — translate to a typed + // Bus disposal so callers see a consistent exception type rather than a raw semaphore disposal. + throw new ObjectDisposedException(typeof(Bus).FullName); + } + finally + { + // Guard against the semaphore being disposed by a concurrent DisposeAsync that won the + // race after WaitAsync returned. A disposed-semaphore Release is benign here — we are + // already exiting — so swallow any ObjectDisposedException to avoid masking the real cause. + if (semaphoreAcquired) { - Envelope envelope = new() - { - Headers = headers.ToDictionary(x => x.Key, x => (object)x.Value), - Body = messageBytes - }; - - bool stop = ProcessFilters(Configuration.OutgoingFilters, envelope); - if (stop) - { - return; - } - - headers = envelope.Headers.ToDictionary(x => x.Key, x => x.Value.ToString()); - messageBytes = envelope.Body; + try { _lifecycleSemaphore.Release(); } + catch (ObjectDisposedException) { } } - _sendMessagePipeline.ExecuteSendMessagePipeline(typeof(T), messageBytes, headers, nextDestination); } + } - public IMessageBusWriteStream CreateStream(string endpoint, T message) where T : Message + /// + public async ValueTask DisposeAsync() + { + if (Interlocked.Exchange(ref _disposed, 1) != 0) { - string sequenceId = Guid.NewGuid().ToString(); - Dictionary headers = new() - { - { "MessageType", "ByteStream" }, - { "Start", "" }, - { "SequenceId", sequenceId } - }; - _ = SendRequest(endpoint, message, headers, 30000); - IMessageBusWriteStream stream = Configuration.GetMessageBusWriteStream(Configuration.GetProducer(), endpoint, sequenceId, Configuration); - return stream; + return; } - private async Task ConsumeMessageEvent(byte[] message, string type, IDictionary headers) + // Stop consuming under the lifecycle semaphore. _consumer and _producer are DI singletons; + // the host's IServiceProvider disposes them when the host shuts down — Bus.DisposeAsync + // does not double-dispose them. _sendPipeline is owned by the Bus and is disposed here. + // Pass DisposeTimeout so a wedged StartConsumingAsync (broker partition mid-handshake) + // does not block container shutdown indefinitely. + try { - ConsumeEventArgs eventArgs = new() - { - Message = message, - Type = type, - Headers = headers - }; - using Activity activity = ServiceConnectActivitySource.StartConsumeActivity(eventArgs); - - ConsumeEventResult result = new() - { - Success = true - }; - - ConsumeContext context = new() - { - Bus = this, - Headers = headers, - }; - - string typeName = type.Split(',')[0]; - if (!_typeLookup.TryGetValue(typeName, out Type typeObject)) - { - typeObject = Type.GetType(typeName) ?? AppDomain.CurrentDomain.GetAssemblies().Select(a => a.GetType(typeName)).FirstOrDefault(t => t != null); - _ = _typeLookup.TryAdd(typeName, typeObject); - } + await StopConsumingCoreAsync(semaphoreWaitTimeout: _busConfig.DisposeTimeout).ConfigureAwait(false); + } + catch (Exception ex) + { + _logger.LogWarning(ex, "Bus.StopConsumingCoreAsync failed during dispose."); + } - if (typeObject == null) - { - _logger.Warn(string.Format("Could not find type {0} when consuming message.", type)); - return result; - } + try + { + await _sendPipeline.DisposeAsync().ConfigureAwait(false); + } + catch (Exception ex) + { + // Without this catch, a throw here would skip the request-reply-manager dispose + // below, leaving every in-flight SendRequestAsync TCS un-faulted — callers + // awaiting with Timeout.Infinite would never wake. Today _sendPipeline.DisposeAsync + // only flips a flag and cannot throw, but a future implementation (or third-party + // ISendMessagePipeline) might; the guard matches the neighbouring catch shapes. + _logger.LogWarning(ex, "SendMessagePipeline.DisposeAsync failed during bus shutdown."); + } + // Fault any in-flight request TCSes so callers awaiting a reply (especially with + // Timeout.Infinite) wake up promptly on shutdown rather than waiting for GC. The + // concrete RequestReplyManager implements IAsyncDisposable; IRequestReplyManager + // does not (custom third-party impls don't have to opt in). Pattern-match to honour + // it when present. + if (_requestReplyManager is IAsyncDisposable disposableReplyManager) + { try { - Envelope envelope = new() - { - Headers = headers, - Body = message - }; - - bool stop = ProcessFilters(Configuration.BeforeConsumingFilters, envelope); - if (stop) - { - return result; - } - - if (headers.ContainsKey("MessageType") && Encoding.UTF8.GetString((byte[])headers["MessageType"]) == "ByteStream") - { - ProcessStream(envelope.Body, typeObject, headers); - } - else - { - await _processMessagePipeline.ExecutePipeline(context, typeObject, envelope); - } - - _ = ProcessFilters(Configuration.AfterConsumingFilters, envelope); - - if (headers.ContainsKey("RoutingSlip")) - { - ProcessRoutingSlip(envelope.Body, typeObject, headers); - } + await disposableReplyManager.DisposeAsync().ConfigureAwait(false); } catch (Exception ex) { - Configuration.ExceptionHandler?.Invoke(ex); - result.Success = false; - result.Exception = ex; + _logger.LogWarning(ex, "RequestReplyManager.DisposeAsync failed during bus shutdown."); } + } + + // _lifecycleSemaphore is intentionally NOT Disposed: + // SemaphoreSlim.Dispose only releases the lazily-allocated WaitHandle, and we never call + // AvailableWaitHandle, so disposal is a functional no-op. A concurrent caller's Release() + // on a disposed semaphore would throw ObjectDisposedException out of the unwind path, + // which we cannot prevent without holding GC references to every caller. Mirrors the + // Connection / ProducerConnection / Producer "do not dispose the semaphore" pattern. + } - return result; + private void ThrowIfDisposed() + { + if (Volatile.Read(ref _disposed) != 0) + { + throw new ObjectDisposedException(typeof(Bus).FullName); } + } - private bool ProcessFilters(IEnumerable filters, Envelope envelope) + // Outgoing filters share the scoped-pipeline contract with inbound filters and + // middleware: a fresh per-send DI scope is pushed through IConsumeScopeAccessor so + // scoped/transient filter dependencies are honoured instead of being leaked via + // the root provider. The scope is disposed as soon as the filter chain completes. + private async Task RunOutgoingFiltersAsync(Envelope envelope, CancellationToken cancellationToken) + { + // CreateAsyncScope so user-supplied IFilter / ISendMessageMiddleware implementations + // that are IAsyncDisposable-only (no IDisposable) are honoured. Explicit try/finally + // + DisposeAsync().ConfigureAwait(false) so the analyzer can see the await. + var scope = _scopeFactory.CreateAsyncScope(); + try { - if (filters != null) + using var _ = _scopeAccessor.Push(scope.ServiceProvider); + var action = await _filterPipeline.ExecuteOutgoingFiltersAsync(envelope, cancellationToken).ConfigureAwait(false); + // A filter-Stop short-circuits the call before the send-message middleware runs, + // so no publish/send span is emitted and the operator-side trace shows a silent + // gap. Surface that case on a dedicated counter so dashboards can alert on + // filter-suppressed deliveries without parsing logs. Tagged with the message + // type name (when known) so per-shape suppression rates are visible. + if (action == FilterAction.Stop) { - foreach (Type filterType in filters) + // String literal rather than a const from ServiceConnect.Telemetry — keeps the + // ServiceConnect package from taking a build-time dependency on the optional + // Telemetry package just to reference its attribute-name constants. The tag + // schema matches what Telemetry emits on the corresponding success path. + var tags = new System.Diagnostics.TagList + { + { "messaging.system", "serviceconnect" }, + }; + if (envelope.Headers.TryGetValue(HeaderKeys.TypeName, out var typeNameObj) && typeNameObj is string typeName && !string.IsNullOrEmpty(typeName)) { - IFilter filter = (IFilter)_container.GetInstance(filterType); - filter.Bus = this; - - bool stop = !filter.Process(envelope); - if (stop) - { - return true; - } + tags.Add("messaging.message.type", typeName); } + ServiceConnectMeter.AddOutgoingFiltersBlocked(tags); } - return false; + return action; } - - private void ProcessRoutingSlip(byte[] message, Type type, IDictionary headers) + finally { - string routingSlip = Encoding.UTF8.GetString((byte[])headers["RoutingSlip"]); - IList destinations = JsonConvert.DeserializeObject>(routingSlip); + await scope.DisposeAsync().ConfigureAwait(false); + } + } - if (null != destinations && destinations.Count > 0) - { - object messageObject = JsonConvert.DeserializeObject(Encoding.UTF8.GetString(message), type); + /// + /// Header keys that the Bus stamps authoritatively. Caller-supplied values for + /// any of these keys are silently ignored so the bus remains the single source + /// of truth for message identity. + /// + // StringComparer.Ordinal (case-sensitive) — AMQP wire-header names are + // case-sensitive per spec; matching with OrdinalIgnoreCase would treat + // "MessageId" and "messageid" as the same key when a malformed producer + // could be sending both. + private static readonly HashSet ReservedHeaders = new(StringComparer.Ordinal) + { + HeaderKeys.CorrelationId, + HeaderKeys.MessageId, + }; - MethodInfo routeMethod = typeof(Bus).GetMethod("Route"); - MethodInfo genericRouteMethod = routeMethod.MakeGenericMethod(type); - _ = genericRouteMethod.Invoke(this, new[] { messageObject, destinations }); - } - } + private Envelope CreateEnvelope(ReadOnlyMemory body, Guid correlationId, Type messageType, IReadOnlyDictionary? additionalHeaders = null) + { + // Snapshot once up front so a concurrent caller mutating the source + // dictionary can't throw "Collection was modified" inside the foreach + // below. The type parameter being IReadOnlyDictionary signals intent + // but doesn't prevent external mutation through the original reference. + var snapshot = additionalHeaders?.ToArray(); - private void ProcessStream(byte[] message, Type type, IDictionary headers) + var envelope = new Envelope { - lock (_busState.ByteStreamLock) - { - bool start = headers.ContainsKey("Start"); - string sequenceId = Encoding.UTF8.GetString((byte[])headers["SequenceId"]); - - IMessageBusReadStream stream; + Body = body, + Headers = new Dictionary(StringComparer.Ordinal) + }; - if (start) - { - string requestMessageId = Encoding.UTF8.GetString((byte[])headers["RequestMessageId"]); - string sourceAddress = Encoding.UTF8.GetString((byte[])headers["SourceAddress"]); - - stream = Configuration.GetMessageBusReadStream(); - stream.CompleteEventHandler = StreamCompleteEventHandler; - stream.SequenceId = sequenceId; - - IStreamProcessor messageHandlerProcessor = _container.GetInstance(new Dictionary - { - {"container", _container} - }); - MethodInfo handlerProcessorMethod = messageHandlerProcessor.GetType().GetMethod("ProcessMessage"); - MethodInfo genericHandlerProcessorMethod = handlerProcessorMethod.MakeGenericMethod(type); - object messageObject = JsonConvert.DeserializeObject(Encoding.UTF8.GetString(message), type); - _ = genericHandlerProcessorMethod.Invoke(messageHandlerProcessor, new[] { messageObject, stream }); - - if (stream.HandlerCount > 0) - { - _busState.ByteStreams.Add(sequenceId, stream); - } - - Send(sourceAddress, new StreamResponseMessage(Guid.NewGuid()), new Dictionary { { "ResponseMessageId", requestMessageId } }); - } - else + if (snapshot is not null) + { + foreach (var header in snapshot) + { + if (ReservedHeaders.Contains(header.Key)) { - if (!_busState.ByteStreams.ContainsKey(sequenceId)) - { - return; - } - - long packetNumber = Convert.ToInt64(Encoding.UTF8.GetString((byte[])headers["PacketNumber"])); - bool stop = headers.ContainsKey("Stop"); - - stream = _busState.ByteStreams[sequenceId]; - - if (!stop) - { - stream.Write(message, packetNumber); - } - else - { - stream.LastPacketNumber = packetNumber; - } + _logger.LogWarning("Caller-supplied reserved header '{Key}' will be overwritten by the framework", header.Key); + continue; } + envelope.Headers[header.Key] = header.Value; } } - private void StreamCompleteEventHandler(string sequenceId) + // Bus-authoritative: stamp system headers last so callers cannot spoof via options.Headers. + // Outgoing filters and middleware rely on MessageId / CorrelationId being present. + envelope.Headers[HeaderKeys.CorrelationId] = correlationId.ToString(); + envelope.Headers[HeaderKeys.MessageId] = Guid.NewGuid().ToString(); + // Stamp type-name headers here so outgoing filters can gate on message type + // (e.g. drop telemetry control messages, route by message-type). The producer's + // OutboundHeaderBuilder re-stamps these authoritatively with identical values + // from its TypeNameCache (TypeName = FullName, FullTypeName = AssemblyQualifiedName), + // so the producer values still win on the wire — but the outgoing filter pipeline + // now sees a complete header set instead of just CorrelationId+MessageId. + if (messageType.FullName is { } fullName) { - lock (_busState.ByteStreamLock) - { - _ = _busState.ByteStreams.Remove(sequenceId); - } + envelope.Headers[HeaderKeys.TypeName] = fullName; } - - public void StopConsuming() + if (messageType.AssemblyQualifiedName is { } aqn) { - _consumer?.Dispose(); + envelope.Headers[HeaderKeys.FullTypeName] = aqn; } - public bool IsConnected() + return envelope; + } + + private static Dictionary ExtractHeaders(Envelope envelope) + { + // Pre-size the destination to the known envelope header count so the + // dictionary is not rehashed as we fill it. + var headers = new Dictionary(envelope.Headers.Count, StringComparer.Ordinal); + foreach (var kvp in envelope.Headers) { - return _consumer?.IsConnected() ?? false; + // IFormattable handles every BCL value type (decimal/double/float/DateTime/ + // DateTimeOffset/TimeSpan/Guid/int/long/…) with explicit InvariantCulture, so + // a German producer's `(3.14m).ToString()` does not stamp `"3,14"` on the wire + // for an invariant-parsing consumer to read as the wrong number. Object types + // without `IFormattable` fall through to a naked ToString — for those, the + // caller is responsible for using a culture-invariant representation if the + // value crosses the wire to a different locale. + headers[kvp.Key] = kvp.Value switch + { + null => string.Empty, + string s => s, + IFormattable formattable => formattable.ToString(null, System.Globalization.CultureInfo.InvariantCulture), + _ => kvp.Value.ToString() ?? string.Empty + }; } + return headers; + } - public void Dispose() + private static string BuildRoutingSlip(IReadOnlyList destinations) + { + if (destinations.Count <= 1) { - try - { - StopConsuming(); - } - catch (Exception ex) - { - _logger.Error("Error stopping consuming", ex); - } + return string.Empty; + } - try + // RouteAsync's caller-validation already screened these. Today RouteAsync is the only + // caller of BuildRoutingSlip, but the slip's comma-separated wire format is non-recoverable + // on the receiving side; revalidate here as defence in depth so a future internal caller + // can't accidentally bypass the check. + for (int i = 0; i < destinations.Count; i++) + { + if (string.IsNullOrWhiteSpace(destinations[i])) { - _sendMessagePipeline.Dispose(); + throw new ArgumentException( + $"Destination at index {i} is null or whitespace.", + nameof(destinations)); } - catch (Exception ex) + if (destinations[i].Contains(',')) { - _logger.Error("Error disposing producer", ex); + throw new ArgumentException( + $"Destination at index {i} contains a comma; commas are reserved as the routing-slip separator.", + nameof(destinations)); } + } - foreach (IAggregatorProcessor aggregatorProcessor in _busState.AggregatorProcessors.Values) - { - try - { - aggregatorProcessor.Dispose(); - } - catch (Exception ex) - { - _logger.Error("Error disposing aggregator", ex); - } - } + // destinations[0] is the immediate send target; the routing slip describes + // the *subsequent* hops, so the join deliberately starts at index 1. + return string.Join(',', destinations.Skip(1)); + } - _expiredTimeoutsPoller?.Stop(); - } + /// + /// Result of the outbound preamble: serialised wire bytes, the headers dictionary to attach, + /// and a flag indicating whether an outgoing filter requested the message be dropped. + /// Callers MUST check before reading or ; + /// the latter two are undefined when the filter pipeline stopped the message. + /// + internal readonly record struct OutboundPreparation( + ReadOnlyMemory Bytes, + Dictionary Headers, + bool Stopped); + + /// + /// Runs the outbound preamble shared by Publish/Send/SendToMany/Route: serialise the message, + /// then either build headers directly (no outgoing filters configured) or build an envelope, + /// invoke the outgoing-filter pipeline, and extract headers from the envelope. + /// + /// + /// The helper always serialises because all callers need the wire bytes for the downstream + /// send pipeline. Request paths use a separate helper that conditionally serialises because + /// RequestReplyManager re-serialises downstream. + /// + internal async Task PrepareOutboundAsync( + T message, + IReadOnlyDictionary? callerHeaders, + CancellationToken cancellationToken) where T : Message + { + var bufferWriter = new System.Buffers.ArrayBufferWriter(); + _serializer.Serialize(message, bufferWriter); + var messageBytes = bufferWriter.WrittenMemory; - private static Dictionary PopulateActivityAndPropagateTraceId(OutgoingEventArgs eventArgs, Activity outoingActivity) + if (_hasOutgoingFilters) { - if (outoingActivity.IsAllDataRequested && !string.IsNullOrEmpty(eventArgs.Message.CorrelationId.ToString())) + var envelope = CreateEnvelope(messageBytes, message.CorrelationId, typeof(T), callerHeaders); + if (await RunOutgoingFiltersAsync(envelope, cancellationToken).ConfigureAwait(false) == FilterAction.Stop) { - outoingActivity.SetTag(MessagingAttributes.MessageConversationId, eventArgs.Message.CorrelationId.ToString()); + return new OutboundPreparation(default, null!, Stopped: true); } - - var headers = eventArgs.Headers ?? new Dictionary(); - - // Inject the ActivityContext into the message headers to propagate trace context to the receiving service. - DistributedContextPropagator.Current.Inject(outoingActivity, headers, InjectTraceContextIntoBasicProperties); - eventArgs.Headers = headers; - - return headers; + return new OutboundPreparation(messageBytes, ExtractHeaders(envelope), Stopped: false); } - private static void InjectTraceContextIntoBasicProperties(object propsObj, string key, string value) + return new OutboundPreparation(messageBytes, BuildHeadersDirect(message.CorrelationId, callerHeaders), Stopped: false); + } + + /// + /// Result of the outbound preamble for request paths: the headers to attach and a flag + /// indicating whether an outgoing filter requested the request be blocked. Request paths + /// re-serialise the message downstream in RequestReplyManager, so this helper + /// does not return wire bytes; callers MUST check before reading + /// . + /// + internal readonly record struct RequestPreparation( + Dictionary Headers, + bool Stopped); + + /// + /// Runs the outbound preamble shared by the three request paths (SendRequestAsync, + /// SendRequestMultiAsync, PublishRequestAsync): serialise the message (only when outgoing + /// filters are registered), run the outgoing-filter pipeline if any, and stamp the headers. + /// + /// + /// Unlike PrepareOutboundAsync this helper does NOT always serialise: when no + /// outgoing filters are configured the envelope is never built, so the local serialise + /// can be skipped because RequestReplyManager re-serialises on the request leg. + /// Two helpers (rather than one) preserve that optimisation. + /// + internal async Task PrepareOutboundForRequestAsync( + T message, + IReadOnlyDictionary? callerHeaders, + CancellationToken cancellationToken) where T : Message + { + if (_hasOutgoingFilters) { - if (propsObj is not Dictionary headers) + // Serialize here only because outgoing filters need to inspect the wire body. + // RequestReplyManager will serialize again on its own path; the duplicate cost + // is confined to this branch. + var bufferWriter = new System.Buffers.ArrayBufferWriter(); + _serializer.Serialize(message, bufferWriter); + var messageBytes = bufferWriter.WrittenMemory; + var envelope = CreateEnvelope(messageBytes, message.CorrelationId, typeof(T), callerHeaders); + if (await RunOutgoingFiltersAsync(envelope, cancellationToken).ConfigureAwait(false) == FilterAction.Stop) { - return; + return new RequestPreparation(null!, Stopped: true); } + return new RequestPreparation(ExtractHeaders(envelope), Stopped: false); + } - // Only propagate headers if they haven't already been set - if (!headers.ContainsKey(key)) + return new RequestPreparation(BuildHeadersDirect(message.CorrelationId, callerHeaders), Stopped: false); + } + + /// + /// Fast-path header builder used when no outgoing filters are registered. + /// Produces the same that + /// + would return, + /// without allocating the intermediate or its + /// Dictionary<string, object> headers map. + /// + private Dictionary BuildHeadersDirect(Guid correlationId, IReadOnlyDictionary? additionalHeaders) + { + // Snapshot-then-iterate: the caller still holds a reference to the + // underlying dictionary, so a concurrent mutation during the foreach + // below would throw "Collection was modified". ToArray grabs a stable + // copy with a single enumeration. + var snapshot = additionalHeaders?.ToArray(); + // Capacity tracks ReservedHeaders.Count (currently 2: MessageId + CorrelationId) plus the + // caller's headers. MessageType is not part of the reserved set, so this is already tight; + // the dynamic count adjusts automatically if the set evolves. + var capacity = ReservedHeaders.Count + (snapshot?.Length ?? 0); + var headers = new Dictionary(capacity, StringComparer.Ordinal); + + if (snapshot is not null) + { + foreach (var kvp in snapshot) { - headers[key] = value; + // Skip reserved keys — the bus stamps these authoritatively below. + if (ReservedHeaders.Contains(kvp.Key)) + { + _logger.LogWarning("Caller-supplied reserved header '{Key}' will be overwritten by the framework", kvp.Key); + continue; + } + headers[kvp.Key] = kvp.Value; } } + + // Bus-authoritative: stamp system headers last so callers cannot spoof via options.Headers. + // MessageType is not stamped here; OutboundHeaderBuilder is the sole authoritative stamper + // of the operation name on the wire. + headers[HeaderKeys.CorrelationId] = correlationId.ToString(); + headers[HeaderKeys.MessageId] = Guid.NewGuid().ToString(); + + return headers; } -} \ No newline at end of file +} diff --git a/src/ServiceConnect/Configuration.cs b/src/ServiceConnect/Configuration.cs deleted file mode 100644 index 455fe5f2a..000000000 --- a/src/ServiceConnect/Configuration.cs +++ /dev/null @@ -1,446 +0,0 @@ -//Copyright (C) 2015 Timothy Watson, Jakub Pachansky - -//This program is free software; you can redistribute it and/or -//modify it under the terms of the GNU General Public License -//as published by the Free Software Foundation; either version 2 -//of the License, or (at your option) any later version. - -//This program is distributed in the hope that it will be useful, -//but WITHOUT ANY WARRANTY; without even the implied warranty of -//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -//GNU General Public License for more details. - -//You should have received a copy of the GNU General Public License -//along with this program; if not, write to the Free Software -//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - -using System; -using System.Collections.Generic; -using System.Reflection; -using ServiceConnect.Client.RabbitMQ; -using ServiceConnect.Container.Default; -using ServiceConnect.Core; -using ServiceConnect.Interfaces; -using ServiceConnect.Persistance.InMemory; -using ServiceConnect.Persistance.SqlServer; - -namespace ServiceConnect -{ - /// - /// Bus configuration. - /// - /// Implicit initialization : - /// Initialize from default values. - /// - /// - public class Configuration : IConfiguration - { - private const string DefaultDatabaseName = "RMessageBusPersistantStore"; - private const string DefaultConnectionString = "mongodb://localhost/"; - private const string DefaultHost= "localhost"; - private const string DefaultAggregatorCollectionName = "Aggregator"; - - #region Private Fields - - //private string _configurationPath; - private string _endPoint; - private string _queueName; - private string _errorQueueName; - private string _auditQueueName; - private bool? _auditingEnabled; - private Type _containerType = typeof(DefaultBusContainer); - private IBusContainer _busContainer; - private IProcessManagerFinder _processManagerFinder; - private ILogger _logger; - - #endregion - - #region Public Properties - - public Type ConsumerType { get; set; } - public Type ProducerType { get; set; } - public Type ProcessManagerFinder { get; set; } - public Type AggregatorPersistor { get; set; } - public Type MessageBusReadStream { get; set; } - public Type MessageBusWriteStream { get; set; } - public Type AggregatorProcessor { get; set; } - public Type ConsumerPoolType { get; set; } - public bool ScanForMesssageHandlers { get; set; } - public bool AutoStartConsuming { get; set; } - public string PersistenceStoreConnectionString { get; set; } - public string PersistenceStoreDatabaseName { get; set; } - public string PersistenceStoreAggregatorCollectionName { get; set; } - public ITransportSettings TransportSettings { get; set; } - public IDictionary> QueueMappings { get; set; } - public Action ExceptionHandler { get; set; } - public bool AddBusToContainer { get; set; } - public int Clients { get; set; } - public IList BeforeConsumingFilters { get; set; } - public IList AfterConsumingFilters { get; set; } - public IList OutgoingFilters { get; set; } - public bool EnableProcessManagerTimeouts { get; set; } - public IList MessageProcessingMiddleware { get; set; } - public IList SendMessageMiddleware { get; set; } - - #endregion - - public Configuration() - { - ScanForMesssageHandlers = true; - AddBusToContainer = true; - AutoStartConsuming = true; - - var defaultQueueName = Assembly.GetEntryAssembly() != null ? Assembly.GetEntryAssembly().GetName().Name : System.Diagnostics.Process.GetCurrentProcess().ProcessName; - - TransportSettings = new TransportSettings - { - QueueName = defaultQueueName, - ClientSettings = new Dictionary() - }; - - SetTransportSettings(); - SetPersistanceSettings(); - - QueueMappings = new Dictionary>(); - - ConsumerType = typeof(Consumer); - ProducerType = typeof(Producer); - ProcessManagerFinder = typeof (SqlServerProcessManagerFinder); - AggregatorPersistor = typeof (InMemoryAggregatorPersistor); - MessageBusReadStream = typeof (MessageBusReadStream); - MessageBusWriteStream = typeof (MessageBusWriteStream); - AggregatorProcessor = typeof(AggregatorProcessor); - - Clients = 1; - - BeforeConsumingFilters = new List(); - AfterConsumingFilters = new List(); - OutgoingFilters = new List(); - MessageProcessingMiddleware = new List(); - SendMessageMiddleware = new List(); - - ConsumerPoolType = typeof(Consumer); - } - - public void AddMessageProcessingMiddleware() where T : IProcessMessageMiddleware - { - MessageProcessingMiddleware.Add(typeof(T)); - } - - public IProcessMessagePipeline GetProcessMessagePipeline(IBusState busState) - { - return new ProcessMessagePipeline(this, busState); - } - - public ISendMessagePipeline GetSendMessagePipeline() - { - return new SendMessagePipeline(this); - } - - public void AddSendMessageMiddleware() where T : ISendMessageMiddleware - { - SendMessageMiddleware.Add(typeof(T)); - } - - /// - /// Adds a message queue mapping. - /// - /// Type of message - /// Queue to send the message to - public void AddQueueMapping(Type messageType, string queue) - { - if (!QueueMappings.ContainsKey(messageType.FullName)) - { - QueueMappings.Add(messageType.FullName, new List()); - } - - QueueMappings[messageType.FullName].Add(queue); - } - - /// - /// Adds message queue mappings. - /// - /// Type of message - /// Queues to send the message to - public void AddQueueMapping(Type messageType, IList queues) - { - if (!QueueMappings.ContainsKey(messageType.FullName)) - { - QueueMappings.Add(messageType.FullName, new List()); - } - - foreach (string queue in queues) - { - QueueMappings[messageType.FullName].Add(queue); - } - } - - public void SetExceptionHandler(Action exceptionHandler) - { - ExceptionHandler = exceptionHandler; - } - - /// - /// Sets the client host server - /// - /// Server connection string - public void SetHost(string host) - { - TransportSettings.Host = host; - } - - /// - /// Sets the container type. - /// - /// - public void SetContainerType() where T : class, IBusContainer - { - _containerType = typeof(T); - } - - public void SetLogger(ILogger logger) - { - _logger = logger; - } - - public ILogger GetLogger() - { - return _logger ?? (_logger = new Logger()); - } - - /// - /// Sets the process manager finder - /// - /// - public void SetProcessManagerFinder() where T : class, IProcessManagerFinder - { - ProcessManagerFinder = typeof (T); - } - - /// - /// Set the aggregator persistor - /// - /// - public void SetAggregatorPersistor() where T : class, IAggregatorPersistor - { - AggregatorPersistor = typeof (T); - } - - /// - /// Sets consumer - /// - /// - public void SetConsumer() where T : class, IConsumer - { - ConsumerType = typeof(T); - } - - /// - /// Sets publisher - /// - /// - public void SetProducer() where T : class, IProducer - { - ProducerType = typeof(T); - } - - /// - /// Sets QueueName - /// - public void SetQueueName(string queueName) - { - _queueName = queueName; - TransportSettings.QueueName = queueName; - } - - /// - /// Sets ErrorQueueName - /// - /// - public void SetErrorQueueName(string errorQueueName) - { - _errorQueueName = errorQueueName; - TransportSettings.ErrorQueueName = errorQueueName; - } - - /// - /// Sets AuditingEnabled - /// - /// - public void SetAuditingEnabled(bool auditingEnabled) - { - _auditingEnabled = auditingEnabled; - TransportSettings.AuditingEnabled = auditingEnabled; - } - - /// - /// Sets AuditQueueName - /// - /// - public void SetAuditQueueName(string auditQueueName) - { - _auditQueueName = auditQueueName; - TransportSettings.AuditQueueName = auditQueueName; - } - - /// - /// Sets Heartbeat queue name - /// - /// - public void SetHeartbeatQueueName(string heartbeatQueueName) - { - TransportSettings.HeartbeatQueueName = heartbeatQueueName; - } - - /// - /// Gets QueueName - /// - public string GetQueueName() - { - return TransportSettings.QueueName; - } - - /// - /// Gets ErrorQueueName - /// - /// - public string GetErrorQueueName() - { - return TransportSettings.ErrorQueueName; - } - - /// - /// Gets AuditQueueName - /// - /// - public string GetAuditQueueName() - { - return TransportSettings.AuditQueueName; - } - - /// - /// Gets instance of IConsumer type - /// - /// - public IConsumer GetConsumer() - { - return (IConsumer)Activator.CreateInstance(ConsumerType, GetLogger()); - } - - /// - /// Gets instance of IProducer type - /// - /// - public IProducer GetProducer() - { - return (IProducer)Activator.CreateInstance(ProducerType, TransportSettings, QueueMappings, GetLogger()); - } - - /// - /// Gets instance of IBusContainer type - /// - /// - public IBusContainer GetContainer() - { - if (null != _busContainer) - { - return _busContainer; - } - - _busContainer = (IBusContainer)Activator.CreateInstance(_containerType); - - return _busContainer; - } - - /// - /// Gets instance of IProcessManagerFinder type - /// - /// - public IProcessManagerFinder GetProcessManagerFinder() - { - if (null == _processManagerFinder) - { - _processManagerFinder = (IProcessManagerFinder)Activator.CreateInstance(ProcessManagerFinder, PersistenceStoreConnectionString, PersistenceStoreDatabaseName); - } - - return _processManagerFinder; - } - - public IAggregatorPersistor GetAggregatorPersistor() - { - return (IAggregatorPersistor)Activator.CreateInstance(AggregatorPersistor, PersistenceStoreConnectionString, PersistenceStoreDatabaseName, PersistenceStoreAggregatorCollectionName); - } - - public IRequestConfiguration GetRequestConfiguration(Guid requestMessageId) - { - var configuration = new RequestConfiguration(requestMessageId); - return configuration; - } - - public void SetDisableErrors(bool disable) - { - TransportSettings.DisableErrors = disable; - } - - public void PurgeQueuesOnStart() - { - TransportSettings.PurgeQueueOnStartup = true; - } - - public IMessageBusReadStream GetMessageBusReadStream() - { - return (IMessageBusReadStream) Activator.CreateInstance(MessageBusReadStream); - } - - public IMessageBusWriteStream GetMessageBusWriteStream(IProducer producer, string endpoint, string sequenceId, IConfiguration configuration) - { - return (IMessageBusWriteStream)Activator.CreateInstance(MessageBusWriteStream, producer, endpoint, sequenceId, configuration); - } - - public IAggregatorProcessor GetAggregatorProcessor(IAggregatorPersistor aggregatorPersistor, IBusContainer container, Type handlerType) - { - return (IAggregatorProcessor)Activator.CreateInstance(AggregatorProcessor, aggregatorPersistor, container, handlerType, GetLogger()); - } - - public void SetNumberOfClients(int numberOfClients) - { - Clients = numberOfClients; - } - - #region Private Methods - - private void SetTransportSettings() - { - TransportSettings = GetTransportSettingsFromDefaults(); - } - - private void SetPersistanceSettings() - { - // Set defaults - PersistenceStoreDatabaseName = PersistenceStoreDatabaseName ?? DefaultDatabaseName; - PersistenceStoreConnectionString = PersistenceStoreConnectionString ?? DefaultConnectionString; - PersistenceStoreAggregatorCollectionName = PersistenceStoreAggregatorCollectionName ?? DefaultAggregatorCollectionName; - } - - private ITransportSettings GetTransportSettingsFromDefaults() - { - ITransportSettings transportSettings = new TransportSettings(); - transportSettings.Host = DefaultHost; - transportSettings.MaxRetries = 3; - transportSettings.RetryDelay = 3000; - transportSettings.Username = null; - transportSettings.Password = null; - transportSettings.QueueName = TransportSettings.QueueName; - transportSettings.MachineName = Environment.MachineName; - transportSettings.ErrorQueueName = "errors"; - transportSettings.AuditingEnabled = false; - transportSettings.AuditQueueName = "audit"; - transportSettings.HeartbeatQueueName = "heartbeat"; - transportSettings.ClientSettings = new Dictionary(); - - return transportSettings; - } - - #endregion - } -} \ No newline at end of file diff --git a/src/ServiceConnect/Configuration/BusConfiguration.cs b/src/ServiceConnect/Configuration/BusConfiguration.cs new file mode 100644 index 000000000..d29614a56 --- /dev/null +++ b/src/ServiceConnect/Configuration/BusConfiguration.cs @@ -0,0 +1,111 @@ +using System.Runtime.CompilerServices; +using ServiceConnect.Interfaces.Configuration; + +namespace ServiceConnect.Configuration; + +/// +/// Mutable implementation of used during application startup. +/// +/// +/// The configuration is frozen by AddServiceConnect at the end of the configure callback. +/// Callers that resolve or any sub-configuration interface from DI +/// cannot mutate top-level fields (DisposeTimeout, MaxRoutingSlipHops, etc.) or any +/// sub-configuration property (Transport, Queues, Persistence, Pipeline). All mutation must occur +/// inside the AddServiceConnect configure callback. +/// +internal sealed class BusConfiguration : IBusConfiguration +{ + private bool _frozen; + private bool _scanForMessageHandlers = true; + private bool _autoStartConsuming = true; + private bool _enableProcessManagerTimeouts; + private TimeSpan _processManagerTimeoutPollInterval = TimeSpan.FromSeconds(30); + private int _consumerCount = 1; + private Func? _exceptionHandler; + private bool _includeMachineNameInHeaders; + private bool _validateReplyDestinations = true; + private bool _enableRoutingSlipProcessing = true; + private int _maxRoutingSlipHops = 32; + private bool _deadLetterUnhandledMessages; + private bool _strictReplyValidation; + private TimeSpan _disposeTimeout = TimeSpan.FromSeconds(30); + private bool _allowMissingProducer; + private int _maxInflightRequests = 10_000; + private long _maxStreamSizeBytes = 100L * 1024 * 1024; + private int _maxActiveStreams = 1000; + + /// + public bool ScanForMessageHandlers { get => _scanForMessageHandlers; set { ThrowIfFrozen(); _scanForMessageHandlers = value; } } + /// + public bool AutoStartConsuming { get => _autoStartConsuming; set { ThrowIfFrozen(); _autoStartConsuming = value; } } + /// + public bool EnableProcessManagerTimeouts { get => _enableProcessManagerTimeouts; set { ThrowIfFrozen(); _enableProcessManagerTimeouts = value; } } + /// + public TimeSpan ProcessManagerTimeoutPollInterval { get => _processManagerTimeoutPollInterval; set { ThrowIfFrozen(); _processManagerTimeoutPollInterval = value; } } + /// + public int ConsumerCount { get => _consumerCount; set { ThrowIfFrozen(); _consumerCount = value; } } + /// + public Func? ExceptionHandler { get => _exceptionHandler; set { ThrowIfFrozen(); _exceptionHandler = value; } } + /// + public bool IncludeMachineNameInHeaders { get => _includeMachineNameInHeaders; set { ThrowIfFrozen(); _includeMachineNameInHeaders = value; } } + /// + public bool ValidateReplyDestinations { get => _validateReplyDestinations; set { ThrowIfFrozen(); _validateReplyDestinations = value; } } + /// + public bool EnableRoutingSlipProcessing { get => _enableRoutingSlipProcessing; set { ThrowIfFrozen(); _enableRoutingSlipProcessing = value; } } + /// + public int MaxRoutingSlipHops { get => _maxRoutingSlipHops; set { ThrowIfFrozen(); _maxRoutingSlipHops = value; } } + /// + public bool DeadLetterUnhandledMessages { get => _deadLetterUnhandledMessages; set { ThrowIfFrozen(); _deadLetterUnhandledMessages = value; } } + /// + public bool StrictReplyValidation { get => _strictReplyValidation; set { ThrowIfFrozen(); _strictReplyValidation = value; } } + /// + public TimeSpan DisposeTimeout { get => _disposeTimeout; set { ThrowIfFrozen(); _disposeTimeout = value; } } + /// + public bool AllowMissingProducer { get => _allowMissingProducer; set { ThrowIfFrozen(); _allowMissingProducer = value; } } + /// + public int MaxInflightRequests { get => _maxInflightRequests; set { ThrowIfFrozen(); _maxInflightRequests = value; } } + /// + public long MaxStreamSizeBytes { get => _maxStreamSizeBytes; set { ThrowIfFrozen(); _maxStreamSizeBytes = value; } } + /// + public int MaxActiveStreams { get => _maxActiveStreams; set { ThrowIfFrozen(); _maxActiveStreams = value; } } + /// + /// Gets the transport configuration used to connect to the broker. + /// + public ITransportConfiguration Transport { get; } = new TransportConfiguration(); + /// + /// Gets the queue configuration used for local queue names and explicit routing mappings. + /// + public IQueueConfiguration Queues { get; } = new QueueConfiguration(); + /// + /// Gets the persistence configuration used for stateful ServiceConnect features. + /// + public IPersistenceConfiguration Persistence { get; } = new PersistenceConfiguration(); + /// + /// Gets the configured pipeline filters and middleware. + /// + public PipelineConfiguration Pipeline { get; } = new PipelineConfiguration(); + + /// + /// Latches this configuration and all sub-configurations so further setter calls throw . + /// Called by AddServiceConnect after the user's configure callback returns. + /// + internal void Freeze() + { + _frozen = true; + ((TransportConfiguration)Transport).Freeze(); + ((QueueConfiguration)Queues).Freeze(); + ((PersistenceConfiguration)Persistence).Freeze(); + Pipeline.Freeze(); + } + + [MethodImpl(MethodImplOptions.AggressiveInlining)] + private void ThrowIfFrozen([CallerMemberName] string? propertyName = null) + { + if (_frozen) + { + throw new InvalidOperationException( + $"BusConfiguration is frozen — '{propertyName}' cannot be modified after AddServiceConnect has returned. " + + "Configure all properties inside the AddServiceConnect callback."); + } + } +} diff --git a/src/ServiceConnect/Configuration/PersistenceConfiguration.cs b/src/ServiceConnect/Configuration/PersistenceConfiguration.cs new file mode 100644 index 000000000..d9c6e8761 --- /dev/null +++ b/src/ServiceConnect/Configuration/PersistenceConfiguration.cs @@ -0,0 +1,49 @@ +using ServiceConnect.Interfaces.Configuration; + +namespace ServiceConnect.Configuration; + +/// +/// Mutable implementation of used to configure +/// persistent ServiceConnect storage. +/// +/// +/// defaults to ; callers must +/// explicitly configure it. The previous default ("mongodb://localhost/") silently +/// targeted localhost when misconfigured — production deployments shipping with the default +/// value were a real accident-mode. Legacy callers that depended on the default must update +/// their ConfigurePersistence(c => c.ConnectionString = "...") wiring. +/// +internal sealed class PersistenceConfiguration : IPersistenceConfiguration +{ + private bool _frozen; + private string _connectionString = string.Empty; + private string _databaseName = "RMessageBusPersistentStore"; + private string _aggregatorCollectionName = "Aggregator"; + + /// + /// Latches this configuration so further setter calls throw . + /// Called by after the user's configure callback returns. + /// + internal void Freeze() => _frozen = true; + + private void ThrowIfFrozen([System.Runtime.CompilerServices.CallerMemberName] string? memberName = null) + { + if (_frozen) + { + throw new System.InvalidOperationException( + $"PersistenceConfiguration is frozen — '{memberName}' cannot be modified after AddServiceConnect has returned. " + + "Configure all properties inside the AddServiceConnect callback."); + } + } + + /// + /// Provider-specific connection string. Required; no default. Misconfiguration + /// surfaces as at first persistence + /// use rather than silently targeting localhost. + /// + public string ConnectionString { get => _connectionString; set { ThrowIfFrozen(); _connectionString = value; } } + /// + public string DatabaseName { get => _databaseName; set { ThrowIfFrozen(); _databaseName = value; } } + /// + public string AggregatorCollectionName { get => _aggregatorCollectionName; set { ThrowIfFrozen(); _aggregatorCollectionName = value; } } +} diff --git a/src/ServiceConnect/Configuration/PipelineConfiguration.cs b/src/ServiceConnect/Configuration/PipelineConfiguration.cs new file mode 100644 index 000000000..9dfb0a971 --- /dev/null +++ b/src/ServiceConnect/Configuration/PipelineConfiguration.cs @@ -0,0 +1,144 @@ +using System.Collections.ObjectModel; +using ServiceConnect.Interfaces.Configuration; + +namespace ServiceConnect.Configuration; + +/// +/// Mutable implementation of that stores filter and middleware type registrations. +/// +/// +/// The internal accessors expose mutable lists to the builder for +/// in-callback configuration. The external interface +/// projects each list through a cached — a runtime type +/// distinct from — so callers that resolve +/// from DI cannot cast the returned back to +/// and bypass the builder by appending filters / middleware post-startup. The internal +/// view is backed by a that throws on +/// mutation once the configuration is frozen. +/// +internal sealed class PipelineConfiguration : IPipelineConfiguration +{ + private bool _frozen; + + private readonly GuardedList _beforeConsumingFilters; + private readonly GuardedList _afterConsumingFilters; + private readonly GuardedList _onConsumedSuccessfullyFilters; + private readonly GuardedList _outgoingFilters; + private readonly GuardedList _messageProcessingMiddleware; + private readonly GuardedList _sendMessageMiddleware; + + private readonly ReadOnlyCollection _beforeConsumingFiltersView; + private readonly ReadOnlyCollection _afterConsumingFiltersView; + private readonly ReadOnlyCollection _onConsumedSuccessfullyFiltersView; + private readonly ReadOnlyCollection _outgoingFiltersView; + private readonly ReadOnlyCollection _messageProcessingMiddlewareView; + private readonly ReadOnlyCollection _sendMessageMiddlewareView; + + public PipelineConfiguration() + { + // GuardedList wraps a List and delegates freeze-checking to () => _frozen. + // Cache the read-only wrappers so the IPipelineConfiguration getters don't + // allocate a fresh ReadOnlyCollection on every dispatch. Each wrapper is a live + // view over its underlying List; the builder's in-callback Add reflects + // through. Post-builder mutation through the IReadOnlyList view is blocked + // because the runtime type is ReadOnlyCollection, not List. + _beforeConsumingFilters = new GuardedList(this, nameof(BeforeConsumingFilters)); + _afterConsumingFilters = new GuardedList(this, nameof(AfterConsumingFilters)); + _onConsumedSuccessfullyFilters = new GuardedList(this, nameof(OnConsumedSuccessfullyFilters)); + _outgoingFilters = new GuardedList(this, nameof(OutgoingFilters)); + _messageProcessingMiddleware = new GuardedList(this, nameof(MessageProcessingMiddleware)); + _sendMessageMiddleware = new GuardedList(this, nameof(SendMessageMiddleware)); + + _beforeConsumingFiltersView = _beforeConsumingFilters.AsReadOnly(); + _afterConsumingFiltersView = _afterConsumingFilters.AsReadOnly(); + _onConsumedSuccessfullyFiltersView = _onConsumedSuccessfullyFilters.AsReadOnly(); + _outgoingFiltersView = _outgoingFilters.AsReadOnly(); + _messageProcessingMiddlewareView = _messageProcessingMiddleware.AsReadOnly(); + _sendMessageMiddlewareView = _sendMessageMiddleware.AsReadOnly(); + } + + /// + /// Latches this configuration so further list-mutation calls throw . + /// Called by after the user's configure callback returns. + /// + internal void Freeze() => _frozen = true; + + /// + /// Gets the filters that run before handler invocation. + /// + public IList BeforeConsumingFilters => _beforeConsumingFilters; + /// + /// Gets the filters that run after handler invocation. + /// + public IList AfterConsumingFilters => _afterConsumingFilters; + /// + /// Gets the filters that run only after a successful handler invocation. + /// + public IList OnConsumedSuccessfullyFilters => _onConsumedSuccessfullyFilters; + /// + /// Gets the filters that run for outgoing messages. + /// + public IList OutgoingFilters => _outgoingFilters; + /// + /// Gets the middleware types that wrap inbound message processing. + /// + public IList MessageProcessingMiddleware => _messageProcessingMiddleware; + /// + /// Gets the middleware types that wrap outbound send and publish operations. + /// + public IList SendMessageMiddleware => _sendMessageMiddleware; + + IReadOnlyList IPipelineConfiguration.BeforeConsumingFilters => _beforeConsumingFiltersView; + IReadOnlyList IPipelineConfiguration.AfterConsumingFilters => _afterConsumingFiltersView; + IReadOnlyList IPipelineConfiguration.OnConsumedSuccessfullyFilters => _onConsumedSuccessfullyFiltersView; + IReadOnlyList IPipelineConfiguration.OutgoingFilters => _outgoingFiltersView; + IReadOnlyList IPipelineConfiguration.MessageProcessingMiddleware => _messageProcessingMiddlewareView; + IReadOnlyList IPipelineConfiguration.SendMessageMiddleware => _sendMessageMiddlewareView; + + // Wraps a List so all mutating IList operations check the owning + // PipelineConfiguration's _frozen flag before proceeding. Read-only operations + // (indexer getter, Count, Contains, CopyTo, GetEnumerator) pass through without + // the freeze check because they're safe at any time. + private sealed class GuardedList(PipelineConfiguration owner, string listName) : IList + { + private readonly List _inner = []; + private readonly PipelineConfiguration _owner = owner; + private readonly string _listName = listName; + + // Returns a live read-only wrapper over the underlying list; the wrapper + // reflects subsequent additions made during the configuration callback. + internal ReadOnlyCollection AsReadOnly() => _inner.AsReadOnly(); + + private void ThrowIfFrozen() + { + if (_owner._frozen) + { + throw new InvalidOperationException( + $"PipelineConfiguration.{_listName} is frozen — the list cannot be modified after AddServiceConnect has returned. " + + "Configure all pipeline filters and middleware inside the AddServiceConnect callback."); + } + } + + public T this[int index] + { + get => _inner[index]; + set { ThrowIfFrozen(); _inner[index] = value; } + } + + public int Count => _inner.Count; + // Reflects the current freeze state: callers that probe IsReadOnly before + // mutating (e.g. serializers, framework utilities) get a truthful answer + // and avoid an unexpected InvalidOperationException on subsequent Add/Clear/etc. + public bool IsReadOnly => _owner._frozen; + public void Add(T item) { ThrowIfFrozen(); _inner.Add(item); } + public void Clear() { ThrowIfFrozen(); _inner.Clear(); } + public bool Contains(T item) => _inner.Contains(item); + public void CopyTo(T[] array, int arrayIndex) => _inner.CopyTo(array, arrayIndex); + public IEnumerator GetEnumerator() => _inner.GetEnumerator(); + public int IndexOf(T item) => _inner.IndexOf(item); + public void Insert(int index, T item) { ThrowIfFrozen(); _inner.Insert(index, item); } + public bool Remove(T item) { ThrowIfFrozen(); return _inner.Remove(item); } + public void RemoveAt(int index) { ThrowIfFrozen(); _inner.RemoveAt(index); } + System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator() => _inner.GetEnumerator(); + } +} diff --git a/src/ServiceConnect/Configuration/QueueConfiguration.cs b/src/ServiceConnect/Configuration/QueueConfiguration.cs new file mode 100644 index 000000000..dddcd65ee --- /dev/null +++ b/src/ServiceConnect/Configuration/QueueConfiguration.cs @@ -0,0 +1,198 @@ +using System.Collections.Concurrent; +using System.Collections.Immutable; +using ServiceConnect.Interfaces.Configuration; + +namespace ServiceConnect.Configuration; + +/// +/// Mutable implementation of used to configure local queue names and routing maps. +/// +internal sealed class QueueConfiguration : IQueueConfiguration +{ + private bool _frozen; + private string _queueName = ""; + private string _errorQueueName = "errors"; + private string _auditQueueName = "audit"; + private bool _auditingEnabled; + private bool _disableErrors; + private bool _purgeQueueOnStartup; + + /// + /// Latches this configuration so further setter calls throw . + /// Called by after the user's configure callback returns. + /// + internal void Freeze() => _frozen = true; + + private void ThrowIfFrozen([System.Runtime.CompilerServices.CallerMemberName] string? memberName = null) + { + if (_frozen) + { + throw new InvalidOperationException( + $"QueueConfiguration is frozen — '{memberName}' cannot be modified after AddServiceConnect has returned. " + + "Configure all properties inside the AddServiceConnect callback."); + } + } + + /// + public string QueueName { get => _queueName; set { ThrowIfFrozen(); _queueName = value; } } + /// + public string ErrorQueueName { get => _errorQueueName; set { ThrowIfFrozen(); _errorQueueName = value; } } + /// + public string AuditQueueName { get => _auditQueueName; set { ThrowIfFrozen(); _auditQueueName = value; } } + /// + public bool AuditingEnabled { get => _auditingEnabled; set { ThrowIfFrozen(); _auditingEnabled = value; } } + /// + public bool DisableErrors { get => _disableErrors; set { ThrowIfFrozen(); _disableErrors = value; } } + /// + public bool PurgeQueueOnStartup { get => _purgeQueueOnStartup; set { ThrowIfFrozen(); _purgeQueueOnStartup = value; } } + + // Keyed by message-type AssemblyQualifiedName so two types sharing a FullName + // (same namespace+name in different assemblies) don't collide into one bucket + // and cross-wire each other's routing. The list preserves registration order + // for callers while the set gives O(1) duplicate checks. + private readonly ConcurrentDictionary _queueMappings = new(StringComparer.Ordinal); + + // Cached wrapper so repeated reads of QueueMappings don't allocate a new object each time. + // Nulled out after every mutation so the next read gets a fresh wrapper over the updated dictionary. + private IReadOnlyDictionary>? _mappingsView; + + private static string GetMappingKey(Type messageType) => + messageType.AssemblyQualifiedName + ?? throw new ArgumentException( + $"Message type '{messageType}' has no AssemblyQualifiedName and cannot be used as a queue-mapping key.", + nameof(messageType)); + + /// + /// + /// Cache invalidation on mutation is not synchronised; callers must not mutate + /// ( / ) + /// concurrently with reads. Mappings are intended to be populated at startup and + /// read at dispatch time. + /// + public IReadOnlyDictionary> QueueMappings => + _mappingsView ??= new QueueMappingsView(_queueMappings); + + /// + public void AddQueueMapping(Type messageType, string queue) + { + ThrowIfFrozen(); + ArgumentNullException.ThrowIfNull(messageType); + if (string.IsNullOrWhiteSpace(queue)) + { + throw new ArgumentException("Queue must be a non-empty string.", nameof(queue)); + } + + string key = GetMappingKey(messageType); + _queueMappings.AddOrUpdate( + key, + _ => QueueMappingEntry.Create(queue), + (_, existing) => existing.Contains(queue) ? existing : existing.Add(queue)); + _mappingsView = null; + } + + /// + public void AddQueueMapping(Type messageType, IReadOnlyList queues) + { + ThrowIfFrozen(); + ArgumentNullException.ThrowIfNull(messageType); + ArgumentNullException.ThrowIfNull(queues); + + // Match the single-queue overload: reject null/empty/whitespace entries up + // front so no empty-string or whitespace queue can be stored in the mapping. + for (int i = 0; i < queues.Count; i++) + { + if (string.IsNullOrWhiteSpace(queues[i])) + { + throw new ArgumentException( + $"Queue at index {i} must be a non-empty string.", nameof(queues)); + } + } + + string key = GetMappingKey(messageType); + _queueMappings.AddOrUpdate( + key, + _ => QueueMappingEntry.Create(queues), + (_, existing) => + { + var updated = existing; + foreach (var q in queues) + { + updated = updated.Add(q); + } + return updated; + }); + _mappingsView = null; + } + + /// + public bool TryGetQueueMapping(Type messageType, out IReadOnlyList queues) + { + ArgumentNullException.ThrowIfNull(messageType); + if (_queueMappings.TryGetValue(GetMappingKey(messageType), out var entry)) + { + queues = entry.List; + return true; + } + queues = []; + return false; + } + + private sealed class QueueMappingsView(ConcurrentDictionary source) : IReadOnlyDictionary> + { + private readonly ConcurrentDictionary _source = source; + + public IReadOnlyList this[string key] => _source[key].List; + public IEnumerable Keys => _source.Keys; + public IEnumerable> Values => _source.Values.Select(entry => (IReadOnlyList)entry.List); + public int Count => _source.Count; + public bool ContainsKey(string key) => _source.ContainsKey(key); + public bool TryGetValue(string key, out IReadOnlyList value) + { + if (_source.TryGetValue(key, out var entry)) + { + value = entry.List; + return true; + } + value = []; + return false; + } + public IEnumerator>> GetEnumerator() + { + foreach (var kvp in _source) + { + yield return new KeyValuePair>(kvp.Key, kvp.Value.List); + } + } + System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator() => GetEnumerator(); + } + + private sealed record QueueMappingEntry(ImmutableList List, ImmutableHashSet Set) + { + public bool Contains(string queue) => Set.Contains(queue); + + public QueueMappingEntry Add(string queue) => + Contains(queue) ? this : new QueueMappingEntry(List.Add(queue), Set.Add(queue)); + + public static QueueMappingEntry Create(string queue) => + new([queue], [queue]); + + public static QueueMappingEntry Create(IEnumerable queues) + { + var list = ImmutableList.Empty; + var set = ImmutableHashSet.Empty; + + foreach (var queue in queues) + { + if (set.Contains(queue)) + { + continue; + } + + list = list.Add(queue); + set = set.Add(queue); + } + + return new QueueMappingEntry(list, set); + } + } +} diff --git a/src/ServiceConnect/Configuration/TransportConfiguration.cs b/src/ServiceConnect/Configuration/TransportConfiguration.cs new file mode 100644 index 000000000..8e97e3132 --- /dev/null +++ b/src/ServiceConnect/Configuration/TransportConfiguration.cs @@ -0,0 +1,168 @@ +using System.Collections.ObjectModel; +using System.Net.Security; +using System.Security.Authentication; +using System.Security.Cryptography.X509Certificates; +using ServiceConnect.Interfaces.Configuration; + +namespace ServiceConnect.Configuration; + +/// +/// Mutable implementation of for configuring broker connectivity and TLS. +/// +internal sealed class TransportConfiguration : ITransportConfiguration +{ + /// Default dead-letter retry delay, in milliseconds. + public const int DefaultRetryDelayMilliseconds = 3000; + /// Default maximum retries before a message is sent to the error queue. + public const int DefaultMaxRetries = 3; + /// Default RabbitMQ prefetch count per consumer. + public const ushort DefaultPrefetchCount = 1; + /// Default RabbitMQ graceful-shutdown drain timeout, in milliseconds. + public const int DefaultGracefulShutdownTimeoutMilliseconds = 5000; + + private bool _frozen; + private string _host = "localhost"; + private string? _username; + private string? _password; + private string? _virtualHost; + private int _retryDelay = DefaultRetryDelayMilliseconds; + private int _maxRetries = DefaultMaxRetries; + private ushort _prefetchCount = DefaultPrefetchCount; + private int _gracefulShutdownTimeoutMilliseconds = DefaultGracefulShutdownTimeoutMilliseconds; + private bool _sslEnabled = true; + private bool _suppressPlaintextWarning; + private SslPolicyErrors _acceptablePolicyErrors = SslPolicyErrors.None; + private string? _serverName; + private string? _certPath; + private string? _certPassphrase; + private X509CertificateCollection? _certs; + private SslProtocols _sslProtocol = SslProtocols.None; + private LocalCertificateSelectionCallback? _certificateSelectionCallback; + private RemoteCertificateValidationCallback? _certificateValidationCallback; + private readonly Dictionary _clientSettings = []; + private readonly ReadOnlyDictionary _clientSettingsView; + + public TransportConfiguration() + { + _clientSettingsView = new ReadOnlyDictionary(_clientSettings); + } + + /// + /// Latches this configuration so further setter calls throw . + /// Called by after the user's configure callback returns. + /// + internal void Freeze() => _frozen = true; + + private void ThrowIfFrozen([System.Runtime.CompilerServices.CallerMemberName] string? memberName = null) + { + if (_frozen) + { + throw new InvalidOperationException( + $"TransportConfiguration is frozen — '{memberName}' cannot be modified after AddServiceConnect has returned. " + + "Configure all properties inside the AddServiceConnect callback."); + } + } + + /// Default targets localhost. Override in production deployments. + public string Host { get => _host; set { ThrowIfFrozen(); _host = value; } } + /// Default unset (no authentication). Override in production deployments. + public string? Username { get => _username; set { ThrowIfFrozen(); _username = value; } } + /// Default unset (no authentication). Override in production deployments. + public string? Password { get => _password; set { ThrowIfFrozen(); _password = value; } } + /// + public string? VirtualHost { get => _virtualHost; set { ThrowIfFrozen(); _virtualHost = value; } } + + /// Dead-letter retry delay, in milliseconds. Must be non-negative. + /// The value is negative. + /// + /// Negative values are rejected at the setter; a negative TTL on the broker-declared + /// retry queue would be refused with PRECONDITION_FAILED when the topology is + /// declared, masking the misconfiguration behind a transport error. + /// + public int RetryDelay + { + get => _retryDelay; + set + { + ThrowIfFrozen(); + if (value < 0) + { + throw new ArgumentOutOfRangeException(nameof(value), value, "RetryDelay must be non-negative (milliseconds)."); + } + _retryDelay = value; + } + } + + /// + /// The value is negative. + /// + /// Negative values are rejected at the setter; a negative MaxRetries would + /// route every first-failure message straight to the error exchange via the malformed + /// RetryCount path (every fresh message has RetryCount=0 > -1). + /// + public int MaxRetries + { + get => _maxRetries; + set + { + ThrowIfFrozen(); + if (value < 0) + { + throw new ArgumentOutOfRangeException(nameof(value), value, "MaxRetries must be non-negative."); + } + _maxRetries = value; + } + } + + /// + public ushort PrefetchCount { get => _prefetchCount; set { ThrowIfFrozen(); _prefetchCount = value; } } + /// + /// Time to wait for in-flight messages to drain during graceful shutdown, in milliseconds. + /// + public int GracefulShutdownTimeoutMilliseconds { get => _gracefulShutdownTimeoutMilliseconds; set { ThrowIfFrozen(); _gracefulShutdownTimeoutMilliseconds = value; } } + /// + public bool SslEnabled { get => _sslEnabled; set { ThrowIfFrozen(); _sslEnabled = value; } } + /// + public bool SuppressPlaintextWarning { get => _suppressPlaintextWarning; set { ThrowIfFrozen(); _suppressPlaintextWarning = value; } } + /// + /// Gets or sets the SSL policy errors that are acceptable. + /// WARNING: Setting any value other than weakens TLS security + /// and should only be used in development/testing environments. + /// + public SslPolicyErrors AcceptablePolicyErrors { get => _acceptablePolicyErrors; set { ThrowIfFrozen(); _acceptablePolicyErrors = value; } } + /// + public string? ServerName { get => _serverName; set { ThrowIfFrozen(); _serverName = value; } } + /// + public string? CertPath { get => _certPath; set { ThrowIfFrozen(); _certPath = value; } } + /// SECURITY: This value is held in memory as plain text. Avoid logging or serializing this configuration object. + public string? CertPassphrase { get => _certPassphrase; set { ThrowIfFrozen(); _certPassphrase = value; } } + /// + public X509CertificateCollection? Certs { get => _certs; set { ThrowIfFrozen(); _certs = value; } } + /// + /// SSL/TLS protocol. Defaults to , which delegates + /// protocol selection to the runtime so TLS 1.3 is used where available. + /// + public SslProtocols SslProtocol { get => _sslProtocol; set { ThrowIfFrozen(); _sslProtocol = value; } } + /// + public LocalCertificateSelectionCallback? CertificateSelectionCallback { get => _certificateSelectionCallback; set { ThrowIfFrozen(); _certificateSelectionCallback = value; } } + /// + /// Gets or sets a custom certificate validation callback. + /// SECURITY WARNING: A callback that unconditionally returns true bypasses + /// all TLS certificate validation, enabling man-in-the-middle attacks. + /// Only use this in development/testing with full understanding of the risks. + /// + /// WARNING: Setting this to a callback that always returns true disables all certificate validation. + public RemoteCertificateValidationCallback? CertificateValidationCallback { get => _certificateValidationCallback; set { ThrowIfFrozen(); _certificateValidationCallback = value; } } + + /// + public IReadOnlyDictionary ClientSettings => _clientSettingsView; + + /// + public void SetClientSetting(string key, object value) + { + ThrowIfFrozen(); + ArgumentNullException.ThrowIfNull(key); + ArgumentNullException.ThrowIfNull(value); + _clientSettings[key] = value; + } +} diff --git a/src/ServiceConnect/DependencyInjection/ServiceCollectionExtensions.Handlers.cs b/src/ServiceConnect/DependencyInjection/ServiceCollectionExtensions.Handlers.cs new file mode 100644 index 000000000..21b26bf6f --- /dev/null +++ b/src/ServiceConnect/DependencyInjection/ServiceCollectionExtensions.Handlers.cs @@ -0,0 +1,248 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.DependencyInjection.Extensions; +using ServiceConnect.Interfaces; +using ServiceConnect.Services; + +namespace ServiceConnect.DependencyInjection; + +/// +/// Handler-scanning and handler-registration parts of . +/// Discovers / / +/// / implementations and registers +/// them as transient (with a hard guard against caller-registered singletons), plus the +/// and the four per-handler-shape registries used by the +/// processor pipeline. +/// +public static partial class ServiceCollectionExtensions +{ + private static IReadOnlyList GetHandlerReferences(ServiceConnectBuilder builder, out IReadOnlyList warnings) + { + // Explicit ScanAssemblies(...) list takes precedence — it represents + // "scan exactly these assemblies" and must not be overridden by the + // global ScanForMessageHandlers=false flag. + // When ScanForMessageHandlers=false, assemblies supplied via ScanAssemblies(...) + // are still scanned; only the fallback AppDomain scan is suppressed. + if (builder.ScanAssembliesList.Count > 0) + { + return HandlerScanner.ScanForHandlers([.. builder.ScanAssembliesList], out warnings); + } + + if (!builder.BusConfig.ScanForMessageHandlers) + { + warnings = []; + return []; + } + + return HandlerScanner.ScanForHandlers(AppDomain.CurrentDomain.GetAssemblies(), out warnings); + } + + private static void RegisterHandlers(IServiceCollection services, IReadOnlyList handlerReferences) + { + RegisterHandlerRegistries(services); + + // Snapshot the service types already present before the scan loop runs. + // RegisterHandlerType uses this to distinguish user pre-registrations + // (present in the snapshot) from scan-discovered handlers added by earlier + // iterations of this loop (not in the snapshot). + var preExistingServiceTypes = services.Select(d => d.ServiceType).ToHashSet(); + + foreach (var handlerRef in handlerReferences) + { + RegisterHandlerType(services, handlerRef, preExistingServiceTypes); + } + + services.TryAddSingleton>(handlerReferences); + + services.TryAddSingleton(sp => + { + var registry = new MessageTypeRegistry(); + foreach (var handlerRef in sp.GetRequiredService>()) + { + registry.Register(handlerRef.MessageType); + } + + return registry; + }); + } + + private static void RegisterHandlerRegistries(IServiceCollection services) + { + services.TryAddSingleton(sp => new Services.Processors.ProcessManagerHandlerRegistry( + sp.GetRequiredService>(), + sp.GetRequiredService>())); + // TryAddEnumerable with the typed factory overload (ServiceDescriptor.Singleton(factory)) + // creates a descriptor whose ImplementationType is ProcessManagerHandlerRegistry, not null. + // TryAddEnumerable deduplicates on (ServiceType, ImplementationType), so this is idempotent + // on repeated calls while the factory still forwards to the shared concrete singleton. + services.TryAddEnumerable(ServiceDescriptor.Singleton( + sp => sp.GetRequiredService())); + + // Register the same instance under IProcessManagerTypeRegistry so persistence + // providers that need to pre-create per-saga structures (e.g. Mongo unique + // CorrelationId indexes) at startup can enumerate the saga data types. + services.TryAddSingleton(sp => + sp.GetRequiredService()); + + // Message-handler descriptor registry (eagerly built, singleton) + services.TryAddSingleton(sp => new Services.Processors.MessageHandlerRegistry( + sp.GetRequiredService>(), + sp.GetRequiredService>())); + services.TryAddEnumerable(ServiceDescriptor.Singleton( + sp => sp.GetRequiredService())); + + // Stream-handler descriptor registry (eagerly built, singleton) + services.TryAddSingleton(sp => new Services.Processors.StreamHandlerRegistry( + sp.GetRequiredService>(), + sp.GetRequiredService>())); + services.TryAddEnumerable(ServiceDescriptor.Singleton( + sp => sp.GetRequiredService())); + + // Aggregator descriptor registry (eagerly built, materializes each aggregator once to capture BatchSize/Timeout). + // Resolves via IServiceScopeFactory so transient/scoped aggregator dependencies are not + // held captive by the root provider for the host's lifetime — the temporary scope is + // disposed inside the registry constructor. + services.TryAddSingleton(sp => new Services.Processors.AggregatorRegistry( + sp.GetRequiredService>(), + sp.GetRequiredService(), + sp.GetRequiredService>())); + services.TryAddEnumerable(ServiceDescriptor.Singleton( + sp => sp.GetRequiredService())); + } + + /// + /// + /// Each carries an discriminator + /// that identifies which handler interface the reference was produced for. The registration + /// loop dispatches each reference to only the relevant TryAddEnumerable call, so a + /// class that implements both IMessageHandler<A> and IProcessHandler<TData,A> + /// produces two separate references and both interfaces are registered. + /// + /// + /// For all four handler kinds, user pre-registrations are detected by checking + /// — a snapshot taken before the scan loop starts. + /// If the service type for a handler kind (e.g. IMessageHandler<T>, + /// IProcessHandler<TData,T>, IStreamHandler<T>, or Aggregator<T>) + /// appears in that snapshot, the user registered it and the scan-discovered handler is suppressed. + /// Descriptors added by earlier iterations of the scan loop itself are NOT in the snapshot, so + /// multiple scan-discovered implementations of the same interface are all registered. + /// TryAddEnumerable dedupes on (ServiceType, ImplementationType) so re-adding + /// the same pair in a later scan pass is a safe no-op. + /// + /// + private static void RegisterHandlerType( + IServiceCollection services, + HandlerReference handlerRef, + IReadOnlySet? preExistingServiceTypes = null) + { + var handlerType = handlerRef.HandlerType; + + // Handlers must never be singletons — handler instances carry per-message + // IConsumeContext state and would race across concurrent dispatches on a shared instance. + // Transient is the safe default; reject any caller who pre-registered the handler + // as a singleton rather than silently co-existing two DI lifetimes. + foreach (var descriptor in services.Where(d => d.ImplementationType == handlerType).ToArray()) + { + if (descriptor.Lifetime == ServiceLifetime.Singleton) + { + throw new InvalidOperationException( + $"Message handler '{handlerType.FullName}' must not be registered as a singleton. " + + "Handler instances hold per-message IConsumeContext state and must be transient or scoped. " + + "Remove the singleton registration and let AddServiceConnect register the handler as transient."); + } + } + + // Each branch handles exactly the interface kind recorded in the reference. + // TryAddEnumerable dedupes on (ServiceType, ImplementationType), so re-adding + // the same descriptor from a second scan pass is a safe no-op. + switch (handlerRef.InterfaceKind) + { + case HandlerInterfaceKind.MessageHandler: + { + var messageHandlerInterface = handlerType.GetInterfaces() + .FirstOrDefault(i => i.IsGenericType + && i.GetGenericTypeDefinition() == typeof(IMessageHandler<>) + && i.GetGenericArguments()[0] == handlerRef.MessageType); + if (messageHandlerInterface == null) + { + return; + } + + // If the service type was present before the scan loop started, the user + // pre-registered a handler. Respect that registration and suppress the + // scan-discovered one. Descriptors added by the scan loop itself are not + // in preExistingServiceTypes, so multiple scan-discovered handlers for the + // same interface all pass through; TryAddEnumerable deduplicates them by + // (ServiceType, ImplementationType). + if (preExistingServiceTypes?.Contains(messageHandlerInterface) == true) + { + return; + } + + services.TryAddEnumerable(ServiceDescriptor.Transient(messageHandlerInterface, handlerType)); + break; + } + + case HandlerInterfaceKind.ProcessHandler: + { + var processHandlerInterface = handlerType.GetInterfaces() + .FirstOrDefault(i => i.IsGenericType + && i.GetGenericTypeDefinition() == typeof(IProcessHandler<,>) + && i.GetGenericArguments()[1] == handlerRef.MessageType); + if (processHandlerInterface == null) + { + break; + } + + // User pre-registration of IProcessHandler takes precedence over + // a scan-discovered handler for the same interface — same rule as MessageHandler. + if (preExistingServiceTypes?.Contains(processHandlerInterface) == true) + { + return; + } + + services.TryAddEnumerable(ServiceDescriptor.Transient(processHandlerInterface, handlerType)); + break; + } + + case HandlerInterfaceKind.StreamHandler: + { + var streamHandlerInterface = handlerType.GetInterfaces() + .FirstOrDefault(i => i.IsGenericType + && i.GetGenericTypeDefinition() == typeof(IStreamHandler<>) + && i.GetGenericArguments()[0] == handlerRef.MessageType); + if (streamHandlerInterface == null) + { + break; + } + + // User pre-registration of IStreamHandler takes precedence over + // a scan-discovered handler for the same interface. + if (preExistingServiceTypes?.Contains(streamHandlerInterface) == true) + { + return; + } + + services.TryAddEnumerable(ServiceDescriptor.Transient(streamHandlerInterface, handlerType)); + break; + } + + case HandlerInterfaceKind.Aggregator: + { + var baseType = HandlerScanner.FindAggregatorBaseType(handlerType); + if (baseType is not null) + { + // User pre-registration of Aggregator (the closed base type) takes + // precedence over a scan-discovered subclass for the same message type. + if (preExistingServiceTypes?.Contains(baseType) == true) + { + return; + } + + services.TryAddEnumerable(ServiceDescriptor.Transient(baseType, handlerType)); + } + + break; + } + } + } +} diff --git a/src/ServiceConnect/DependencyInjection/ServiceCollectionExtensions.RequestReplyManager.cs b/src/ServiceConnect/DependencyInjection/ServiceCollectionExtensions.RequestReplyManager.cs new file mode 100644 index 000000000..485d10821 --- /dev/null +++ b/src/ServiceConnect/DependencyInjection/ServiceCollectionExtensions.RequestReplyManager.cs @@ -0,0 +1,97 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.DependencyInjection.Extensions; +using ServiceConnect.Interfaces; +using ServiceConnect.Services; + +namespace ServiceConnect.DependencyInjection; + +/// +/// Request/reply manager registration logic for . +/// Both (caller-facing send) and +/// (reply-correlation, used by +/// ReplyProcessor) must resolve to the same instance — otherwise outgoing requests +/// and incoming reply tracking diverge and replies are silently dropped. This class wires +/// the stock into both interfaces and refuses to start +/// when caller registrations would split-brain the two. +/// +public static partial class ServiceCollectionExtensions +{ + private static void RegisterRequestReplyManager(IServiceCollection services) + { + // Check whether the caller has pre-registered a custom IRequestReplyManager. + var existingRrmDescriptor = services.FirstOrDefault(d => d.ServiceType == typeof(IRequestReplyManager)); + var existingRsrrmDescriptor = services.FirstOrDefault(d => d.ServiceType == typeof(IReplyStatusRequestReplyManager)); + + if (existingRrmDescriptor is null) + { + // Reverse split-brain guard: if the caller pre-registered a custom + // IReplyStatusRequestReplyManager without also pre-registering IRequestReplyManager, + // the two interfaces would resolve to different instances — reply tracking would + // use the custom impl but outgoing-request dispatch would use the stock one. + if (existingRsrrmDescriptor is not null) + { + throw new InvalidOperationException( + $"A custom '{nameof(IReplyStatusRequestReplyManager)}' has been registered " + + $"but '{nameof(IRequestReplyManager)}' has not been registered. " + + "Both interfaces must resolve to the same instance so that outgoing requests and " + + "incoming reply tracking are in sync. Register IRequestReplyManager as " + + "a forwarding factory before calling AddServiceConnect, e.g.: " + + "services.AddSingleton(sp => (IRequestReplyManager)sp.GetRequiredService());"); + } + + // No custom registration — use the stock concrete type for both interfaces. + services.TryAddSingleton(); + services.TryAddSingleton(sp => sp.GetRequiredService()); + services.TryAddSingleton(sp => sp.GetRequiredService()); + return; + } + + // A custom IRequestReplyManager has been registered. Both the public contract + // (used by Bus to dispatch requests) and the internal contract (used by + // ReplyProcessor to correlate incoming replies) must resolve to the same + // instance — if they don't, replies are silently dropped. + // + // Determine the concrete implementation type so we can verify it also + // implements IReplyStatusRequestReplyManager. For factory-based registrations + // where the type cannot be statically inspected, the caller must pre-register + // IReplyStatusRequestReplyManager themselves (TryAdd below will honour it). + var implType = existingRrmDescriptor.ImplementationType + ?? existingRrmDescriptor.ImplementationInstance?.GetType(); + + var replyStatusAlreadyRegistered = services.Any(d => d.ServiceType == typeof(IReplyStatusRequestReplyManager)); + + if (!replyStatusAlreadyRegistered) + { + if (implType is null) + { + // Factory-based registration and no IReplyStatusRequestReplyManager present. + throw new InvalidOperationException( + $"A custom '{nameof(IRequestReplyManager)}' has been registered via a factory, " + + $"but '{nameof(IReplyStatusRequestReplyManager)}' has not been registered. " + + "Both interfaces must resolve to the same instance so that outgoing requests and " + + "incoming reply tracking are in sync. Register IReplyStatusRequestReplyManager as " + + "a forwarding factory before calling AddServiceConnect, e.g.: " + + "services.AddSingleton(sp => (IReplyStatusRequestReplyManager)sp.GetRequiredService());"); + } + + if (!typeof(IReplyStatusRequestReplyManager).IsAssignableFrom(implType)) + { + throw new InvalidOperationException( + $"A custom '{nameof(IRequestReplyManager)}' has been registered but its implementation " + + $"('{implType.FullName}') does not also implement '{nameof(IReplyStatusRequestReplyManager)}'. " + + "Both interfaces must be implemented by the same type so that outgoing requests and " + + "incoming reply tracking use the same instance. Either remove the custom registration " + + "and use the built-in RequestReplyManager, or implement both interfaces on your custom type " + + "and register IReplyStatusRequestReplyManager as a forwarding factory to the same instance."); + } + + // The caller's impl covers both interfaces. Wire IReplyStatusRequestReplyManager + // to the same resolved instance so there is exactly one object in play. + services.TryAddSingleton(sp => + (IReplyStatusRequestReplyManager)sp.GetRequiredService()); + } + + // IReplyStatusRequestReplyManager is either already registered by the caller or + // was just wired above — nothing more to do for the custom registration path. + } +} diff --git a/src/ServiceConnect/DependencyInjection/ServiceCollectionExtensions.Validation.cs b/src/ServiceConnect/DependencyInjection/ServiceCollectionExtensions.Validation.cs new file mode 100644 index 000000000..01c62df02 --- /dev/null +++ b/src/ServiceConnect/DependencyInjection/ServiceCollectionExtensions.Validation.cs @@ -0,0 +1,75 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; + +namespace ServiceConnect.DependencyInjection; + +/// +/// Pipeline-registration validators for . Catches +/// missing DI registrations at startup so they surface as a clear error rather than as an +/// opaque resolution failure on the first message arrival, and enforces the singleton-only +/// lifetime constraint on SendMessageMiddleware. +/// +public static partial class ServiceCollectionExtensions +{ + private static void ValidateSendMessageMiddlewareLifetimes(IServiceCollection services, IEnumerable middlewareTypes) + { + foreach (var middlewareType in middlewareTypes) + { + var descriptors = services + .Where(descriptor => descriptor.ServiceType == middlewareType || descriptor.ImplementationType == middlewareType) + .ToArray(); + + if (descriptors.Length == 0 || descriptors.Any(descriptor => descriptor.Lifetime != ServiceLifetime.Singleton)) + { + throw new InvalidOperationException( + $"Send message middleware '{middlewareType.FullName}' must be registered as a singleton."); + } + } + + // Also catch middleware registered directly against the ISendMessageMiddleware interface + // (e.g., services.AddTransient()). The pipeline caches + // instances at first use, so a non-singleton registration would be silently promoted to + // singleton lifetime, risking cross-request state leaks. + var directDescriptors = services + .Where(d => d.ServiceType == typeof(ISendMessageMiddleware)) + .ToList(); + + foreach (var descriptor in directDescriptors) + { + if (descriptor.Lifetime != ServiceLifetime.Singleton) + { + var implName = descriptor.ImplementationType?.FullName ?? ""; + throw new InvalidOperationException( + $"Send message middleware '{implName}' must be registered as a singleton."); + } + } + } + + // Inbound middleware and filters (both incoming and outgoing) run inside a + // per-message DI scope, so any lifetime is permitted — but they still have to be + // registered. Catch missing registrations at startup rather than letting them + // surface as opaque DI resolution failures when the first message arrives. + private static void ValidateInboundMiddlewareAndFilterRegistrations(IServiceCollection services, IPipelineConfiguration pipeline) + { + ValidateTypesRegistered(services, pipeline.MessageProcessingMiddleware, "Message processing middleware"); + ValidateTypesRegistered(services, pipeline.BeforeConsumingFilters, "Before-consuming filter"); + ValidateTypesRegistered(services, pipeline.AfterConsumingFilters, "After-consuming filter"); + ValidateTypesRegistered(services, pipeline.OutgoingFilters, "Outgoing filter"); + ValidateTypesRegistered(services, pipeline.OnConsumedSuccessfullyFilters, "On-consumed-successfully filter"); + } + + private static void ValidateTypesRegistered(IServiceCollection services, IReadOnlyList types, string role) + { + foreach (var type in types) + { + var registered = services.Any(d => d.ServiceType == type || d.ImplementationType == type); + if (!registered) + { + throw new InvalidOperationException( + $"{role} '{type.FullName}' is referenced by the pipeline but is not registered in the service collection. " + + "Register the type via services.AddScoped/AddTransient/AddSingleton before calling AddServiceConnect."); + } + } + } +} diff --git a/src/ServiceConnect/DependencyInjection/ServiceCollectionExtensions.cs b/src/ServiceConnect/DependencyInjection/ServiceCollectionExtensions.cs new file mode 100644 index 000000000..6342f6ef0 --- /dev/null +++ b/src/ServiceConnect/DependencyInjection/ServiceCollectionExtensions.cs @@ -0,0 +1,188 @@ +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.DependencyInjection.Extensions; +using Microsoft.Extensions.Hosting; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Services; +using ServiceConnect.Services.Processors; + +namespace ServiceConnect.DependencyInjection; + +/// +/// Extension methods for registering ServiceConnect services with dependency injection. +/// Public entry point and the small bookkeeping registrations live here; handler scanning, +/// request/reply-manager wiring, and pipeline registration validation live in sibling +/// partial-class files for navigability. +/// +public static partial class ServiceCollectionExtensions +{ + /// + /// Registers the core ServiceConnect services, handlers, and hosted services. + /// + /// The service collection to extend. + /// The callback used to configure the ServiceConnect builder. + /// The same instance for chaining. + public static IServiceCollection AddServiceConnect( + this IServiceCollection services, + Action configure) + { + ArgumentNullException.ThrowIfNull(services); + ArgumentNullException.ThrowIfNull(configure); + + // Reject re-entry. ServiceConnect is a single-bus framework per IServiceCollection: + // the first call wins via TryAddSingleton and the second call's + // handler scan, BusConfig, and PipelineConfiguration would be silently dropped — + // incoming messages of types from the second call would route as NotHandled and + // ack-and-drop with no operator signal. Detect the second call by looking for any + // existing IBusConfiguration registration (only AddServiceConnect registers it). + // Note: IReadOnlyList is intentionally NOT in this check — tests + // and some feature-flag patterns legitimately pre-register their own handler-reference + // list before calling AddServiceConnect. + if (services.Any(d => d.ServiceType == typeof(IBusConfiguration))) + { + throw new InvalidOperationException( + "AddServiceConnect has already been called on this IServiceCollection. " + + "ServiceConnect is single-bus per service collection; calling it twice would silently drop the second call's handler scan, BusConfig, and PipelineConfiguration. " + + "Consolidate all feature-module ServiceConnect registrations into a single AddServiceConnect call, " + + "or use a separate IServiceCollection per bus instance."); + } + + var builder = new ServiceConnectBuilder(); + configure(builder); + + // Catch the case where the user omits ConfigureQueues entirely: an empty QueueName + // would otherwise produce an opaque AMQP error at broker-connect time. + ServiceConnectBuilder.ValidateQueues(builder.BusConfig.Queues); + + RegisterConfiguration(services, builder); + RegisterCoreServices(services); + RegisterProcessors(services); + + var handlerReferences = GetHandlerReferences(builder, out var scanWarnings); + RegisterHandlers(services, handlerReferences); + + // Stash scan warnings so BusHostedService can replay them against the configured + // ILogger at startup — the scan ran before DI was built, so any partial-scan + // warnings (missing assemblies, broken plugins) would otherwise be dropped. + services.AddSingleton>(scanWarnings); + + foreach (var registration in builder.AdditionalRegistrations) + { + registration(services); + } + + ValidateSendMessageMiddlewareLifetimes(services, builder.BusConfig.Pipeline.SendMessageMiddleware); + ValidateInboundMiddlewareAndFilterRegistrations(services, builder.BusConfig.Pipeline); + RegisterBus(services); + + // Freeze the top-level BusConfiguration so post-registration mutations from code + // that resolves IBusConfiguration from DI (or holds a captured builder reference) + // throw rather than silently overriding the validated values that gate + // DisposeTimeout / MaxRoutingSlipHops runtime invariants. Freeze runs AFTER all + // additional registrations and validators so feature modules still have a chance + // to extend the bus during AddServiceConnect. + builder.BusConfig.Freeze(); + + return services; + } + + private static void RegisterConfiguration(IServiceCollection services, ServiceConnectBuilder builder) + { + services.TryAddSingleton(builder.BusConfig); + services.TryAddSingleton(builder.BusConfig.Transport); + services.TryAddSingleton(builder.BusConfig.Queues); + services.TryAddSingleton(builder.BusConfig.Persistence); + services.TryAddSingleton(builder.BusConfig.Pipeline); + + services.TryAddSingleton(TimeProvider.System); + } + + private static void RegisterCoreServices(IServiceCollection services) + { + services.TryAddSingleton(); + services.TryAddSingleton(); + RegisterRequestReplyManager(services); + services.TryAddSingleton(); + services.TryAddSingleton(); + services.TryAddSingleton(); + // The consume-scope accessor flows the current DI scope through AsyncLocal so + // inbound filters, middleware, and processors resolve scoped services from the + // per-message scope established by MessageDispatcher and outgoing filter sites. + services.TryAddSingleton(); + } + + private static void RegisterProcessors(IServiceCollection services) + { + services.TryAddSingleton(); + services.TryAddSingleton(); + services.TryAddSingleton(); + services.TryAddSingleton(); + services.TryAddSingleton(); + services.TryAddSingleton>(sp => + [ + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService() + ]); + services.TryAddSingleton(); + } + + private static void RegisterBus(IServiceCollection services) + { + services.TryAddSingleton(); + services.TryAddSingleton(); + // Resolve Lazy through the accessor rather than capturing the root + // IServiceProvider — capturing the root SP inside the factory risks deadlock + // if any transitive dependency dereferences Value during Bus construction. + // Fallback: when a caller pre-registered IBus before AddServiceConnect ran, the + // TryAddSingleton below skips and BusAccessor.Set never fires; defer to the + // container's IBus resolution so the deferred reference still works for that case. + services.TryAddSingleton(sp => new Lazy(() => + { + var accessor = sp.GetRequiredService(); + return accessor.Bus ?? sp.GetRequiredService(); + })); + services.TryAddSingleton(sp => + { + sp.GetRequiredService().Initialize(); + + var bus = new Bus( + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService>(), + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService>(), + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetRequiredService(), + sp.GetService(), + sp.GetService(), + timeoutStore: sp.GetService(), + consumeContextAccessor: sp.GetRequiredService(), + busConfig: sp.GetRequiredService(), + timeProvider: sp.GetService()); + sp.GetRequiredService().Set(bus); + return bus; + }); + // TryAddEnumerable so a second AddServiceConnect call (e.g. two feature modules + // each calling it) does not start two BusHostedService instances — the second + // StartConsumingAsync would throw "Already consuming" and kill host startup — + // nor two ProcessManagerTimeoutService instances both polling the same store. + services.TryAddEnumerable(ServiceDescriptor.Singleton()); + // TryAddEnumerable dedups by implementation type, so the factory-bound descriptor + // needs a concrete TImplementation. Use the typed factory overload so a repeat + // AddServiceConnect call doesn't double-register ProcessManagerTimeoutService. + services.TryAddEnumerable(ServiceDescriptor.Singleton(sp => + new ProcessManagerTimeoutService( + sp.GetRequiredService(), + sp.GetRequiredService>(), + sp.GetService(), + sp.GetRequiredService>(), + sp.GetService()))); + } +} diff --git a/src/ServiceConnect/Diagnostics/ExceptionTypeMapper.cs b/src/ServiceConnect/Diagnostics/ExceptionTypeMapper.cs new file mode 100644 index 000000000..2c6417a64 --- /dev/null +++ b/src/ServiceConnect/Diagnostics/ExceptionTypeMapper.cs @@ -0,0 +1,67 @@ +namespace ServiceConnect.Diagnostics; + +/// +/// Maps an exception to a stable, low-cardinality string suitable for the OpenTelemetry +/// error.type tag on metric records. Uses an allow-list for common .NET exception +/// types and falls back to 's short name. +/// +/// +/// The exception message is never used — message text is unbounded cardinality and +/// would explode metric series counts. +/// +public static class ExceptionTypeMapper +{ + // FullName strings for RabbitMQ.Client exceptions. Kept as constants so the core + // library stays transport-agnostic (no direct reference to RabbitMQ.Client) while + // still producing stable, human-readable error.type values. AlreadyClosedException + // extends OperationInterruptedException, so its string must be checked first. + private const string AlreadyClosedFqn = "RabbitMQ.Client.Exceptions.AlreadyClosedException"; + private const string BrokerUnreachableFqn = "RabbitMQ.Client.Exceptions.BrokerUnreachableException"; + private const string PublishExceptionFqn = "RabbitMQ.Client.Exceptions.PublishException"; + private const string OperationInterruptedFqn = "RabbitMQ.Client.Exceptions.OperationInterruptedException"; + + /// + /// Maps the exception to the corresponding stable, low-cardinality string used as the + /// error.type tag value on metric records. + /// + public static string Map(Exception exception) + { + ArgumentNullException.ThrowIfNull(exception); + return exception switch + { + OperationCanceledException => "cancelled", + TimeoutException => "timeout", + _ => MapByFullName(exception), + }; + } + + private static string MapByFullName(Exception exception) + { + // Walk the type hierarchy so that subclasses of the known AMQP types are also + // matched. AlreadyClosedException must be checked before OperationInterruptedException + // because it is a subclass — FullName comparison is exact, so we climb the chain. + var type = exception.GetType(); + while (type is not null) + { + var fqn = type.FullName; + if (string.Equals(fqn, AlreadyClosedFqn, StringComparison.Ordinal)) + { + return "channel_closed"; + } + if (string.Equals(fqn, BrokerUnreachableFqn, StringComparison.Ordinal)) + { + return "broker_unreachable"; + } + if (string.Equals(fqn, PublishExceptionFqn, StringComparison.Ordinal)) + { + return "publish_nacked"; + } + if (string.Equals(fqn, OperationInterruptedFqn, StringComparison.Ordinal)) + { + return "broker_interrupted"; + } + type = type.BaseType; + } + return exception.GetType().Name; + } +} diff --git a/src/ServiceConnect/Diagnostics/MetricNames.cs b/src/ServiceConnect/Diagnostics/MetricNames.cs new file mode 100644 index 000000000..e3097f2f6 --- /dev/null +++ b/src/ServiceConnect/Diagnostics/MetricNames.cs @@ -0,0 +1,58 @@ +namespace ServiceConnect.Diagnostics; + +/// +/// Names of metrics emitted by ServiceConnect. Exposed as public const string +/// so consumers (Grafana templates, custom , +/// alert rules) can reference them without re-typing strings. +/// +/// +/// OTel-standard names (messaging.publish.duration, messaging.process.duration, +/// messaging.client.published.messages, messaging.client.consumed.messages) follow +/// the OpenTelemetry +/// messaging-metrics semantic conventions. ServiceConnect-specific extensions live under the +/// messaging.serviceconnect.* sub-namespace. +/// +public static class MetricNames +{ + /// Histogram (seconds) — duration of a publish operation, from start to broker ack. + public const string PublishDuration = "messaging.publish.duration"; + + /// Histogram (seconds) — duration of consumer-side message processing (handler dispatch). + public const string ProcessDuration = "messaging.process.duration"; + + /// Counter — number of messages successfully published. + public const string PublishedMessages = "messaging.client.published.messages"; + + /// Counter — number of messages consumed, tagged by messaging.outcome. + public const string ConsumedMessages = "messaging.client.consumed.messages"; + + /// Counter — number of consumer-side retry attempts (header-counter increments). + public const string RetryAttempts = "messaging.serviceconnect.retry.attempts"; + + /// Counter — number of messages dropped because retry publishing failed. + public const string RetryDrops = "messaging.serviceconnect.retry.drops"; + + /// Counter — number of publishes that exceeded the configured publish timeout waiting for broker ack. + public const string PublishConfirmTimeouts = "messaging.serviceconnect.publish.confirm_timeouts"; + + /// Counter — number of audit messages that failed to publish. + public const string AuditDrops = "messaging.serviceconnect.audit.drops"; + + /// UpDownCounter — current count of in-flight (dispatched but not acked) consumer messages. + public const string InFlightMessages = "messaging.serviceconnect.process.messages.inflight"; + + /// Counter — number of outgoing operations aborted because an outgoing filter + /// returned FilterAction.Stop. No publish/send span is emitted for blocked operations, + /// so this counter is the operator-visible signal for filter-suppressed deliveries. + public const string OutgoingFiltersBlocked = "messaging.serviceconnect.outgoing_filters.blocked"; + + /// + /// Counter incremented when an aggregator handler succeeds but the subsequent + /// RemoveSnapshotAsync call fails. The framework intentionally swallows the + /// remove failure to avoid re-running the handler via broker NACK; the rows remain + /// leased until the lease expires and a peer may then re-claim and re-dispatch + /// (the at-least-once trade-off). A spike on this counter translates directly into + /// duplicate handler invocations after the lease expires. + /// + public const string SnapshotRemoveFailedAfterDispatch = "messaging.serviceconnect.aggregator.snapshot_remove_failed_after_dispatch"; +} diff --git a/src/ServiceConnect/Diagnostics/ServiceConnectMeter.cs b/src/ServiceConnect/Diagnostics/ServiceConnectMeter.cs new file mode 100644 index 000000000..f099ae3c4 --- /dev/null +++ b/src/ServiceConnect/Diagnostics/ServiceConnectMeter.cs @@ -0,0 +1,123 @@ +using System.Diagnostics; +using System.Diagnostics.Metrics; + +namespace ServiceConnect.Diagnostics; + +/// +/// Hosts the and instruments emitted by +/// ServiceConnect. Always-on: instruments are zero-cost when no listener has subscribed, +/// matching the pattern used by .NET BCL libraries (HttpClient, EFCore). +/// +/// +/// Subscribers wire the meter via MeterProvider.AddMeter("ServiceConnect.Bus") or, on +/// OpenTelemetry, via builder.AddServiceConnectInstrumentation() from +/// ServiceConnect.Telemetry. +/// +public static class ServiceConnectMeter +{ + /// The meter name used by every ServiceConnect instrument. + public const string MeterName = "ServiceConnect.Bus"; + + private static readonly string _version = + typeof(ServiceConnectMeter).Assembly.GetName().Version?.ToString() ?? "0.0.0"; + + private static readonly Meter _meter = new(MeterName, _version); + + private static readonly Histogram _publishDuration = _meter.CreateHistogram( + name: MetricNames.PublishDuration, + unit: "s", + description: "Duration of a publish operation, from start to broker ack."); + + private static readonly Histogram _processDuration = _meter.CreateHistogram( + name: MetricNames.ProcessDuration, + unit: "s", + description: "Duration of consumer-side message processing (handler dispatch)."); + + private static readonly Counter _publishedMessages = _meter.CreateCounter( + name: MetricNames.PublishedMessages, + unit: "{message}", + description: "Number of messages successfully published."); + + private static readonly Counter _consumedMessages = _meter.CreateCounter( + name: MetricNames.ConsumedMessages, + unit: "{message}", + description: "Number of messages consumed, tagged by outcome."); + + private static readonly Counter _retryAttempts = _meter.CreateCounter( + name: MetricNames.RetryAttempts, + unit: "{attempt}", + description: "Consumer-side retry attempts (header-counter increments)."); + + private static readonly Counter _retryDrops = _meter.CreateCounter( + name: MetricNames.RetryDrops, + unit: "{drop}", + description: "Messages dropped because retry publishing failed."); + + private static readonly Counter _publishConfirmTimeouts = _meter.CreateCounter( + name: MetricNames.PublishConfirmTimeouts, + unit: "{timeout}", + description: "Publishes that exceeded the configured publish timeout waiting for broker ack."); + + private static readonly Counter _auditDrops = _meter.CreateCounter( + name: MetricNames.AuditDrops, + unit: "{drop}", + description: "Audit messages that failed to publish."); + + private static readonly Counter _outgoingFiltersBlocked = _meter.CreateCounter( + name: MetricNames.OutgoingFiltersBlocked, + unit: "{message}", + description: "Outgoing operations aborted because an outgoing filter returned FilterAction.Stop."); + + private static readonly Counter _snapshotRemoveFailedAfterDispatch = _meter.CreateCounter( + name: MetricNames.SnapshotRemoveFailedAfterDispatch, + unit: "{failure}", + description: "Aggregator snapshot-remove failures after a successful handler dispatch — invisible at-least-once window."); + + private static readonly UpDownCounter _inFlightMessages = _meter.CreateUpDownCounter( + name: MetricNames.InFlightMessages, + unit: "{message}", + description: "Current count of in-flight (dispatched but not acked) consumer messages."); + + /// Records a publish duration in seconds with the given tags. + public static void RecordPublishDuration(double seconds, in TagList tags) + => _publishDuration.Record(seconds, tags); + + /// Records a consumer-side process duration in seconds with the given tags. + public static void RecordProcessDuration(double seconds, in TagList tags) + => _processDuration.Record(seconds, tags); + + /// Increments the published-messages counter by 1 with the given tags. + public static void AddPublishedMessage(in TagList tags) => _publishedMessages.Add(1, tags); + + /// Increments the consumed-messages counter by 1 with the given tags. + public static void AddConsumedMessage(in TagList tags) => _consumedMessages.Add(1, tags); + + /// Increments the retry-attempts counter by 1 with the given tags. + public static void AddRetryAttempt(in TagList tags) => _retryAttempts.Add(1, tags); + + /// Increments the retry-drops counter by 1 with the given tags. + public static void AddRetryDrop(in TagList tags) => _retryDrops.Add(1, tags); + + /// Increments the publish-confirm-timeouts counter by 1 with the given tags. + public static void AddPublishConfirmTimeout(in TagList tags) => _publishConfirmTimeouts.Add(1, tags); + + /// Increments the audit-drops counter by 1 with the given tags. + public static void AddAuditDrop(in TagList tags) => _auditDrops.Add(1, tags); + + /// Increments the outgoing-filters-blocked counter by 1 with the given tags. + public static void AddOutgoingFiltersBlocked(in TagList tags) => _outgoingFiltersBlocked.Add(1, tags); + + /// Increments the snapshot-remove-after-dispatch failure counter by 1 with the given tags. + public static void AddSnapshotRemoveFailedAfterDispatch(in TagList tags) => _snapshotRemoveFailedAfterDispatch.Add(1, tags); + + /// Adjusts the in-flight UpDownCounter by with the given tags. + public static void AddInFlight(long delta, in TagList tags) => _inFlightMessages.Add(delta, tags); + + /// + /// Disposes the underlying . Call only when unloading the assembly in a + /// collectible AssemblyLoadContext; for normal long-running processes the meter lives + /// for process lifetime and disposal is unnecessary. Mirrors + /// ServiceConnectActivitySource.Shutdown(). + /// + internal static void Shutdown() => _meter.Dispose(); +} diff --git a/src/ServiceConnect/MessagingAttributes.cs b/src/ServiceConnect/MessagingAttributes.cs deleted file mode 100644 index c432fdc6d..000000000 --- a/src/ServiceConnect/MessagingAttributes.cs +++ /dev/null @@ -1,17 +0,0 @@ -namespace ServiceConnect; - -public static class MessagingAttributes -{ - // These constants are defined in the OpenTelemetry specification: - // https://opentelemetry.io/docs/specs/semconv/messaging/messaging-spans/#messaging-attributes - public const string MessageId = "messaging.message.id"; - - public const string MessageConversationId = "messaging.message.conversation_id"; - public const string MessagingOperation = "messaging.operation"; - public const string MessagingSystem = "messaging.system"; - public const string MessagingDestination = "messaging.destination.name"; - public const string MessagingDestinationAnonymous = "messaging.destination.anonymous"; - public const string MessagingDestinationRoutingKey = "messaging.rabbitmq.destination.routing_key"; - public const string MessagingBodySize = "messaging.message.body.size"; - public const string ProtocolName = "network.protocol.name"; -} \ No newline at end of file diff --git a/src/ServiceConnect/Properties/AssemblyInfo.cs b/src/ServiceConnect/Properties/AssemblyInfo.cs deleted file mode 100644 index 401a25d60..000000000 --- a/src/ServiceConnect/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,20 +0,0 @@ -using System.Reflection; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; - -// General Information about an assembly is controlled through the following -// set of attributes. Change these attribute values to modify the information -// associated with an assembly. -[assembly: AssemblyConfiguration("")] -[assembly: AssemblyCompany("Ruffer PLC")] -[assembly: AssemblyProduct("ServiceConnect")] -[assembly: AssemblyTrademark("")] - -// Setting ComVisible to false makes the types in this assembly not visible -// to COM components. If you need to access a type in this assembly from -// COM, set the ComVisible attribute to true on that type. -[assembly: ComVisible(false)] - -// The following GUID is for the ID of the typelib if this project is exposed to COM -[assembly: Guid("f09795db-4bb3-44cc-8953-f7ebec475658")] -[assembly: InternalsVisibleTo("ServiceConnect.UnitTests")] \ No newline at end of file diff --git a/src/ServiceConnect/ServiceConnect.csproj b/src/ServiceConnect/ServiceConnect.csproj index 46f22fd58..cfb31b07c 100644 --- a/src/ServiceConnect/ServiceConnect.csproj +++ b/src/ServiceConnect/ServiceConnect.csproj @@ -1,32 +1,39 @@ - - - - 6.0.0 - net6.0 - ServiceConnect - ServiceConnect - false - false - false - 5.0.16 - - - - - - - - - - - - - - - - - - - - + + + enable + enable + ServiceConnect + ServiceConnect + ServiceConnect + A simple, easy to use asynchronous messaging framework for .NET. ServiceConnect hosts the dispatch pipeline, handler discovery, process-manager/aggregator runtime, request-reply manager, and outbound send pipeline that transport packages plug into. + ServiceConnect;MessageBus;Messaging;Message;Bus;Service;RabbitMQ + + + + + + + <_Parameter1>ServiceConnect.UnitTests + + + <_Parameter1>ServiceConnect.EndToEndTests + + + <_Parameter1>ServiceConnect.SerializationCompatTests + + + + <_Parameter1>DynamicProxyGenAssembly2, PublicKey=0024000004800000940000000602000000240000525341310004000001000100c547cac37abd99c8db225ef2f6c8a3602f3b3606cc9891605d02baa56104f4cfc0734aa39b93bf7852f7d9266654753cc297e7d2edfe0bac1cdcf9f717241550e0a7b191195b7667bb4f64bcb8e2121380fd1d9d46ad2d92d2d15605093924cceaf74c4861eff62abf69b9291ed0a340e113be11e6a7d3113e92484cf7045cc7 + + + + + + + + + diff --git a/src/ServiceConnect/ServiceConnect.nuspec b/src/ServiceConnect/ServiceConnect.nuspec deleted file mode 100644 index 45b684ba3..000000000 --- a/src/ServiceConnect/ServiceConnect.nuspec +++ /dev/null @@ -1,35 +0,0 @@ - - - - ServiceConnect - 6.0.2 - ServiceConnect - Jakub Pachansky,Tim Watson - Jakub Pachansky,Tim Watson - false - A simple, easy to use asynchronous messaging framework for .NET. - en-GB - https://github.com/R-Suite/ServiceConnect - Copyright 2021 ServiceConnect. All rights reserved - ServiceConnect,MessageBus,R MessageBus,RabbitMQ MessageBus,RMessageBus,Messaging,Message,Bus,Service - - - - - - - - - - - - - - - - - - - - - \ No newline at end of file diff --git a/src/ServiceConnect/ServiceConnectActivitySource.cs b/src/ServiceConnect/ServiceConnectActivitySource.cs deleted file mode 100644 index d1659fe3c..000000000 --- a/src/ServiceConnect/ServiceConnectActivitySource.cs +++ /dev/null @@ -1,205 +0,0 @@ -using ServiceConnect.Interfaces; -using System; -using System.Collections.Generic; -using System.Diagnostics; -using System.Linq; -using System.Text; - -namespace ServiceConnect; - -internal static class ServiceConnectActivitySource -{ - internal static readonly Version Version = typeof(ServiceConnectActivitySource).Assembly.GetName().Version; - internal const string ActivitySourceName = "ServiceConnect.Bus"; - - public static readonly string PublishActivitySourceName = ActivitySourceName + ".Publish"; - public static readonly string ConsumeActivitySourceName = ActivitySourceName + ".Consume"; - public static readonly string SendActivitySourceName = ActivitySourceName + ".Send"; - - private static readonly ActivitySource _publishActivitySource = new(PublishActivitySourceName, Version?.ToString() ?? "0.0.0"); - private static readonly ActivitySource _consumeActivitySource = new(ConsumeActivitySourceName, Version?.ToString() ?? "0.0.0"); - private static readonly ActivitySource _sendActivitySource = new(SendActivitySourceName, Version?.ToString() ?? "0.0.0"); - - public static Activity StartPublishActivity(PublishEventArgs eventArgs, ActivityContext linkedContext = default) - { - if (!_publishActivitySource.HasListeners()) - { - return null; - } - - Activity activity = _publishActivitySource.StartActivity(PublishActivitySourceName, ActivityKind.Producer, linkedContext); - - if (activity is null) - { - return null; - } - - activity - .SetTag(MessagingAttributes.MessagingSystem, "rabbitmq") - .SetTag(MessagingAttributes.ProtocolName, "amqp") - .SetTag(MessagingAttributes.MessagingOperation, "publish") - .SetTag(MessagingAttributes.MessageConversationId, eventArgs.Message?.CorrelationId.ToString()); - - if (!string.IsNullOrWhiteSpace(eventArgs.RoutingKey)) - { - activity.DisplayName = eventArgs.RoutingKey + " publish"; - activity - .SetTag(MessagingAttributes.MessagingDestination, eventArgs.RoutingKey) - .SetTag(MessagingAttributes.MessagingDestinationRoutingKey, eventArgs.RoutingKey); - } - else - { - activity.DisplayName = "anonymous publish"; - activity.SetTag(MessagingAttributes.MessagingDestinationAnonymous, "true"); - } - - if (eventArgs.Headers.TryGetValue("MessageId", out string messageId) && messageId is not null) - { - activity.SetTag(MessagingAttributes.MessageId, messageId); - } - - return activity; - } - - public static Activity StartConsumeActivity(ConsumeEventArgs eventArgs) - { - if (!_consumeActivitySource.HasListeners()) - { - return null; - } - - DistributedContextPropagator.Current.ExtractTraceIdAndState(eventArgs.Headers, ExtractTraceIdAndState, out string traceId, out string traceState); - ActivityContext.TryParse(traceId, traceState, out ActivityContext parentContext); - - Activity activity = _consumeActivitySource.StartActivity(ConsumeActivitySourceName, ActivityKind.Consumer, parentContext); - - if (activity is null) - { - return null; - } - - activity - .SetTag(MessagingAttributes.MessagingSystem, "rabbitmq") - .SetTag(MessagingAttributes.ProtocolName, "amqp") - .SetTag(MessagingAttributes.MessagingOperation, "receive"); - - Dictionary readableHeaders = new(); - foreach (var kvp in eventArgs.Headers.ToList()) - { - if (kvp.Value.GetType() == typeof(byte[])) - { - readableHeaders[kvp.Key] = Encoding.UTF8.GetString((byte[])kvp.Value); - continue; - } - - readableHeaders[kvp.Key] = kvp.Value.ToString(); - } - - readableHeaders.TryGetValue("DestinationAddress", out string destinationAddress); - activity.DisplayName = (string.IsNullOrWhiteSpace(destinationAddress) ? "anonymous" : destinationAddress) + " receive"; - - if (readableHeaders.TryGetValue("MessageId", out string messageId) && messageId is not null) - { - activity.SetTag(MessagingAttributes.MessageId, messageId); - } - - if (!string.IsNullOrEmpty(destinationAddress)) - { - activity.SetTag(MessagingAttributes.MessagingDestination, destinationAddress); - } - else - { - activity.SetTag(MessagingAttributes.MessagingDestinationAnonymous, "true"); - } - - if (eventArgs.Message is not null) - { - activity.SetTag(MessagingAttributes.MessagingBodySize, eventArgs.Message.Length); - } - - return activity; - } - - public static Activity StartSendAcitivty(SendEventArgs eventArgs, ActivityContext linkedContext = default) - { - if (!_sendActivitySource.HasListeners()) - { - return null; - } - - Activity activity = _sendActivitySource.StartActivity(SendActivitySourceName, ActivityKind.Producer, linkedContext); - - if (activity is null) - { - return null; - } - - activity - .SetTag(MessagingAttributes.MessagingSystem, "rabbitmq") - .SetTag(MessagingAttributes.ProtocolName, "amqp") - .SetTag(MessagingAttributes.MessagingOperation, "publish"); - - activity.DisplayName = (string.IsNullOrWhiteSpace(eventArgs.EndPoint) ? "anonymous" : eventArgs.EndPoint) + " publish"; - - if (!string.IsNullOrEmpty(eventArgs.EndPoint)) - { - activity.SetTag(MessagingAttributes.MessagingDestination, eventArgs.EndPoint); - } - else - { - activity.SetTag(MessagingAttributes.MessagingDestinationAnonymous, "true"); - } - - if (eventArgs.Message is null) - { - return activity; - } - - activity.SetTag(MessagingAttributes.MessageConversationId, eventArgs.Message.CorrelationId.ToString()); - - return activity; - } - - public static bool TryGetExistingContext(Dictionary headers, out ActivityContext context) - { - if (headers == null) - { - context = default; - return false; - } - - bool hasHeaders = DistributedContextPropagator.Current.Fields.Any(header => headers.ContainsKey(header)); - - if (hasHeaders) - { - DistributedContextPropagator.Current.ExtractTraceIdAndState(headers, ExtractTraceIdAndState, - out string traceParent, out string traceState); - return ActivityContext.TryParse(traceParent, traceState, out context); - } - - context = default; - return false; - } - - private static void ExtractTraceIdAndState(object eventArgs, string name, out string value, out IEnumerable values) - { - if (eventArgs is Dictionary headers && headers.TryGetValue(name, out object propsVal)) - { - if (propsVal is byte[] bytes) - { - value = Encoding.UTF8.GetString(bytes); - values = default; - return; - } - if (propsVal is string stringValue) - { - value = stringValue; - values = default; - return; - } - } - - value = default; - values = default; - } -} \ No newline at end of file diff --git a/src/ServiceConnect/ServiceConnectBuilder.cs b/src/ServiceConnect/ServiceConnectBuilder.cs new file mode 100644 index 000000000..234402dea --- /dev/null +++ b/src/ServiceConnect/ServiceConnectBuilder.cs @@ -0,0 +1,427 @@ +using System.Net; +using System.Reflection; +using Microsoft.Extensions.Logging; +using ServiceConnect.Configuration; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; + +namespace ServiceConnect; + +/// +/// Fluent builder used to configure ServiceConnect registrations before adding them to a service collection. +/// +public sealed class ServiceConnectBuilder +{ + internal BusConfiguration BusConfig { get; } = new(); + private readonly List> _additionalRegistrations = []; + /// + /// Gets additional service registrations that will be applied after core ServiceConnect services are registered. + /// + public IReadOnlyList> AdditionalRegistrations => _additionalRegistrations; + + /// + /// Assemblies to scan for message handlers. Populated explicitly via + /// ; when empty and + /// is true, falls back to assemblies. Explicit + /// registration is preferred because it is deterministic and testable. + /// + internal List ScanAssembliesList { get; } = []; + + /// + /// Registers assemblies to scan for message handlers instead of relying on all currently loaded assemblies. + /// + /// The assemblies that contain handlers. + /// The current builder instance. + public ServiceConnectBuilder ScanAssemblies(params Assembly[] assemblies) + { + ArgumentNullException.ThrowIfNull(assemblies); + for (int i = 0; i < assemblies.Length; i++) + { + if (assemblies[i] is null) + { + throw new ArgumentNullException($"{nameof(assemblies)}[{i}]", "Assembly array element is null."); + } + } + ScanAssembliesList.AddRange(assemblies); + return this; + } + + /// + /// Adds a custom service-registration callback to run during AddServiceConnect. + /// + /// The callback that registers additional services. + /// The current builder instance. + public ServiceConnectBuilder AddRegistration(Action registration) + { + ArgumentNullException.ThrowIfNull(registration); + _additionalRegistrations.Add(registration); + return this; + } + + /// + /// Configures transport settings such as host, retry, and TLS behavior. + /// + /// The callback that mutates the transport configuration. + /// The current builder instance. + public ServiceConnectBuilder ConfigureTransport(Action configure) + { + configure(BusConfig.Transport); + ValidateTransport(BusConfig.Transport); + return this; + } + + // Guard against silently-broken configuration at startup. Values that would + // cause confusing runtime errors are rejected with a message pointing at the + // misconfigured property. + private static void ValidateTransport(ITransportConfiguration transport) + { + if (string.IsNullOrWhiteSpace(transport.Host)) + { + throw new InvalidOperationException("TransportConfiguration.Host must be a non-empty host or comma-separated host list."); + } + + if (transport.RetryDelay < 0) + { + throw new InvalidOperationException($"TransportConfiguration.RetryDelay must be non-negative (got {transport.RetryDelay})."); + } + + if (transport.MaxRetries < 0) + { + throw new InvalidOperationException($"TransportConfiguration.MaxRetries must be non-negative (got {transport.MaxRetries})."); + } + + if (transport.GracefulShutdownTimeoutMilliseconds < 0) + { + throw new InvalidOperationException($"TransportConfiguration.GracefulShutdownTimeoutMilliseconds must be non-negative (got {transport.GracefulShutdownTimeoutMilliseconds})."); + } + } + + /// + /// Emits a warning via when TLS is disabled against a + /// non-loopback host and + /// is not set. Called at host startup so the configured ILogger is available. + /// + /// + /// Loopback recognition covers: "localhost" (case-insensitive), IPv4 loopback + /// (127.x.x.x — via ), IPv6 loopback (::1), + /// and the bracket form [::1] used in some URI host strings. + /// One warning per call regardless of how many non-loopback entries a cluster host list contains. + /// + internal static void WarnIfPlaintextOnNonLoopbackHost(ITransportConfiguration transport, ILogger logger) + { + if (transport.SslEnabled || transport.SuppressPlaintextWarning || string.IsNullOrEmpty(transport.Host)) + { + return; + } + + foreach (var entry in transport.Host.Split(',')) + { + var trimmed = entry.Trim(); + if (trimmed.Length == 0 || IsLoopbackHost(trimmed)) + { + continue; + } + ServiceConnectLog.PlaintextOnNonLoopbackHost(logger, trimmed); + return; // one warning per call regardless of how many non-loopback entries + } + } + + // Recognises the standard loopback forms a transport host might carry: + // - "localhost" (DNS name, case-insensitive) + // - IPv4 loopback 127.x.x.x (covered by IPAddress.IsLoopback) + // - IPv6 loopback ::1 (covered by IPAddress.IsLoopback) + // - Bracket-wrapped IPv6 [::1] used in URI host components — strip brackets before parse + private static bool IsLoopbackHost(string host) + { + // Strip bracket wrapping before IP parse so "[::1]" resolves correctly. + var candidate = host.Length >= 2 && host[0] == '[' && host[^1] == ']' + ? host[1..^1] + : host; + + if (IPAddress.TryParse(candidate, out var addr)) + { + return IPAddress.IsLoopback(addr); + } + return string.Equals(candidate, "localhost", StringComparison.OrdinalIgnoreCase); + } + + /// + /// Configures queue names and explicit message routing mappings. + /// + /// The callback that mutates queue settings. + /// The current builder instance. + public ServiceConnectBuilder ConfigureQueues(Action configure) + { + configure(BusConfig.Queues); + ValidateQueues(BusConfig.Queues); + return this; + } + + // Empty/whitespace QueueName produces an opaque AMQP error at broker-connect time. + // Catching it here surfaces an actionable message at startup. + internal static void ValidateQueues(IQueueConfiguration queues) + { + if (string.IsNullOrWhiteSpace(queues.QueueName)) + { + throw new InvalidOperationException( + "QueueConfiguration.QueueName must be a non-empty, non-whitespace string."); + } + } + + /// + /// Configures persistence settings used by process managers, aggregators, and timeout storage. + /// + /// The callback that mutates persistence settings. + /// The current builder instance. + public ServiceConnectBuilder ConfigurePersistence(Action configure) + { + configure(BusConfig.Persistence); + return this; + } + + /// + /// Internal pipeline-configuration hook used by the framework's own builder extensions + /// (e.g. AddTelemetry) that need to mutate the middleware lists directly. Public + /// callers should use the strongly-typed / + /// / + /// (etc.) entry points instead, which insulate consumers from internal refactors of + /// the pipeline-configuration shape. + /// + /// The callback that mutates pipeline settings. + /// The current builder instance. + internal ServiceConnectBuilder ConfigurePipeline(Action configure) + { + configure(BusConfig.Pipeline); + return this; + } + + /// + /// Registers middleware that wraps outgoing send and publish operations at the + /// outermost position — runs first on the way out, last on the way back. Use for + /// cross-cutting concerns that need to bracket every other middleware (tracing, + /// metrics). De-duplicates by middleware type: a repeat call with the same + /// is a no-op rather than producing two registrations. + /// + /// The middleware type. + /// The current builder instance. + public ServiceConnectBuilder InsertSendMessageMiddlewareOutermost() where T : class, ISendMessageMiddleware + { + var list = BusConfig.Pipeline.SendMessageMiddleware; + if (!list.Contains(typeof(T))) + { + list.Insert(0, typeof(T)); + } + return this; + } + + /// + /// Registers middleware that wraps incoming message processing at the outermost + /// position — runs first on the way in, last on the way out. Use for cross-cutting + /// concerns that need to bracket every other middleware (tracing, metrics). + /// De-duplicates by middleware type: a repeat call with the same + /// is a no-op rather than producing two registrations. + /// + /// The middleware type. + /// The current builder instance. + public ServiceConnectBuilder InsertMessageProcessingMiddlewareOutermost() where T : class, IMessageProcessingMiddleware + { + var list = BusConfig.Pipeline.MessageProcessingMiddleware; + if (!list.Contains(typeof(T))) + { + list.Insert(0, typeof(T)); + } + return this; + } + + /// + /// Configures bus-wide runtime behavior such as handler discovery and automatic startup. + /// + /// The callback that mutates bus settings. + /// The current builder instance. + public ServiceConnectBuilder ConfigureBus(Action configure) + { + configure(BusConfig); + ValidateBus(BusConfig); + return this; + } + + // Guard against silently-broken bus configuration at startup. A ConsumerCount below 1 + // causes the client-construction loop in Consumer.StartConsumingAsync to be skipped + // entirely, leaving the bus reporting IsConsuming=true while dispatching nothing. + // Task.WaitAsync / SemaphoreSlim.WaitAsync / PeriodicTimer all reject TimeSpan values + // greater than uint.MaxValue ms (~49.7 days). Any user-supplied timeout configured + // beyond that range — even TimeSpan.MaxValue, which a "wait forever" intent might + // suggest — produces an ArgumentOutOfRangeException at the framework's first await, + // long after startup, with no operator-actionable signal. The cap below catches the + // misconfiguration at startup. Use Timeout.InfiniteTimeSpan when the intent is + // truly "wait indefinitely" — the BCL's APIs have explicit support for it. + private static readonly TimeSpan MaxAcceptedTimeSpan = TimeSpan.FromMilliseconds(uint.MaxValue - 1); + + private static void ValidateBus(IBusConfiguration bus) + { + if (bus.ConsumerCount < 1) + { + throw new InvalidOperationException( + $"BusConfiguration.ConsumerCount must be at least 1 (got {bus.ConsumerCount})."); + } + + // DisposeTimeout flows into Task.WaitAsync / SemaphoreSlim.WaitAsync which throw + // ArgumentOutOfRangeException for any negative value other than Timeout.InfiniteTimeSpan, + // and for any TimeSpan greater than uint.MaxValue ms. Catch the misconfiguration at + // startup rather than at host teardown where the AOORE escapes + // ProcessManagerTimeoutService.DisposeAsync's narrower catch. + if (bus.DisposeTimeout != Timeout.InfiniteTimeSpan && bus.DisposeTimeout <= TimeSpan.Zero) + { + throw new InvalidOperationException( + $"BusConfiguration.DisposeTimeout must be positive or Timeout.InfiniteTimeSpan (got {bus.DisposeTimeout})."); + } + if (bus.DisposeTimeout != Timeout.InfiniteTimeSpan && bus.DisposeTimeout > MaxAcceptedTimeSpan) + { + throw new InvalidOperationException( + $"BusConfiguration.DisposeTimeout must be at most {MaxAcceptedTimeSpan} (uint.MaxValue ms); " + + $"got {bus.DisposeTimeout}. Use Timeout.InfiniteTimeSpan if you want to wait indefinitely."); + } + + // ProcessManagerTimeoutPollInterval is consumed by `new PeriodicTimer(interval, …)` + // which rejects values > int.MaxValue ms. Without this check, a TimeSpan.MaxValue + // (or any > ~24.8 days) silently faults the polling task at startup and the host + // comes up "started" but never polls. + if (bus.ProcessManagerTimeoutPollInterval <= TimeSpan.Zero || + bus.ProcessManagerTimeoutPollInterval > TimeSpan.FromMilliseconds(int.MaxValue)) + { + throw new InvalidOperationException( + $"BusConfiguration.ProcessManagerTimeoutPollInterval must be positive and at most " + + $"{TimeSpan.FromMilliseconds(int.MaxValue)} (int.MaxValue ms); got {bus.ProcessManagerTimeoutPollInterval}."); + } + + // MaxRoutingSlipHops <= 0 silently disables routing-slip forwarding + // (HandlerProcessor short-circuits at the limit check). Either reject or document; + // we reject at startup so the misconfig surfaces with a clear remediation. + if (bus.MaxRoutingSlipHops <= 0) + { + throw new InvalidOperationException( + $"BusConfiguration.MaxRoutingSlipHops must be at least 1 (got {bus.MaxRoutingSlipHops}). " + + "Routing-slip processing is disabled via BusConfiguration.EnableRoutingSlipProcessing=false, " + + "not by setting MaxRoutingSlipHops to zero or negative."); + } + + // MaxInflightRequests gates every SendRequestAsync / SendRequestMultiAsync / + // PublishRequestAsync entry. A zero or negative cap would short-circuit every + // call at the >= check before allocating any RequestState, leaving the bus + // technically up but unable to issue requests. Reject at startup. + if (bus.MaxInflightRequests <= 0) + { + throw new InvalidOperationException( + $"BusConfiguration.MaxInflightRequests must be positive (got {bus.MaxInflightRequests}). " + + "The in-flight request cap defends against unbounded memory growth from Timeout.Infinite callers; " + + "zero or negative values would block all SendRequestAsync calls."); + } + + // MaxStreamSizeBytes gates every MessageBusReadStream.Write. A zero or negative + // cap would reject every packet at the > check, leaving the bus able to admit + // stream sequences but unable to commit any bytes. Reject at startup. + if (bus.MaxStreamSizeBytes <= 0) + { + throw new InvalidOperationException( + $"BusConfiguration.MaxStreamSizeBytes must be positive (got {bus.MaxStreamSizeBytes}). " + + "The stream-reassembly cap defends against unbounded memory growth from hostile producers; " + + "zero or negative values would reject every stream write."); + } + + // MaxActiveStreams gates new-stream admission in StreamProcessor. A zero or + // negative cap would reject every first-packet at the > check, leaving the bus + // unable to admit any new stream. Reject at startup. + if (bus.MaxActiveStreams <= 0) + { + throw new InvalidOperationException( + $"BusConfiguration.MaxActiveStreams must be positive (got {bus.MaxActiveStreams}). " + + "The active-stream cap defends against DoS via slot exhaustion; zero or negative values would reject every new stream."); + } + } + + /// + /// Adds an outgoing filter that runs before messages are sent or published. + /// + /// The filter type. + /// The current builder instance. + public ServiceConnectBuilder AddOutgoingFilter() where T : class, IFilter + { + BusConfig.Pipeline.OutgoingFilters.Add(typeof(T)); + return this; + } + + /// + /// Adds a filter that runs before an incoming message reaches handlers. + /// + /// The filter type. + /// The current builder instance. + public ServiceConnectBuilder AddBeforeConsumingFilter() where T : class, IFilter + { + BusConfig.Pipeline.BeforeConsumingFilters.Add(typeof(T)); + return this; + } + + /// + /// Adds a filter that runs after an incoming message has been processed. + /// + /// The filter type. + /// The current builder instance. + public ServiceConnectBuilder AddAfterConsumingFilter() where T : class, IFilter + { + BusConfig.Pipeline.AfterConsumingFilters.Add(typeof(T)); + return this; + } + + /// + /// Adds a filter that runs only after a successful handler invocation + /// (the dispatcher chain returned Success = true and + /// NotHandled = false). Failures and unhandled messages skip this stage. + /// Use for at-most-once side effects that depend on the handler having + /// completed — e.g. recording a deduplication key, publishing an audit + /// event, writing to an outbox. + /// + /// The filter type. + /// The current builder instance. + public ServiceConnectBuilder AddOnConsumedSuccessfullyFilter() where T : class, IFilter + { + BusConfig.Pipeline.OnConsumedSuccessfullyFilters.Add(typeof(T)); + return this; + } + + /// + /// Appends middleware that wraps outgoing send and publish operations. De-duplicates + /// by middleware type: a repeat call with the same is a no-op + /// rather than producing two registrations — matches the dedup semantics of + /// so two feature modules each + /// calling the framework's own builder extensions can't accidentally wrap the pipeline + /// twice (which would otherwise double-emit telemetry spans and overwrite the outer + /// traceparent with the inner span's context). + /// + /// The middleware type. + /// The current builder instance. + public ServiceConnectBuilder AddSendMessageMiddleware() where T : class, ISendMessageMiddleware + { + var list = BusConfig.Pipeline.SendMessageMiddleware; + if (!list.Contains(typeof(T))) + { + list.Add(typeof(T)); + } + return this; + } + + /// + /// Appends middleware that wraps incoming message processing. De-duplicates by + /// middleware type — see for the rationale. + /// + /// The middleware type. + /// The current builder instance. + public ServiceConnectBuilder AddMessageProcessingMiddleware() where T : class, IMessageProcessingMiddleware + { + var list = BusConfig.Pipeline.MessageProcessingMiddleware; + if (!list.Contains(typeof(T))) + { + list.Add(typeof(T)); + } + return this; + } +} diff --git a/src/ServiceConnect/ServiceConnectLog.cs b/src/ServiceConnect/ServiceConnectLog.cs new file mode 100644 index 000000000..65aa8929b --- /dev/null +++ b/src/ServiceConnect/ServiceConnectLog.cs @@ -0,0 +1,21 @@ +using Microsoft.Extensions.Logging; + +namespace ServiceConnect; + +/// +/// Source-generated logger entries emitted by the core ServiceConnect package. +/// +internal static partial class ServiceConnectLog +{ + /// + /// Stable event id for the plaintext-on-non-loopback warning emitted at host startup. + /// + public const int PlaintextOnNonLoopbackHostEventId = 100; + + [LoggerMessage( + EventId = PlaintextOnNonLoopbackHostEventId, + EventName = "PlaintextOnNonLoopbackHost", + Level = LogLevel.Warning, + Message = "ServiceConnect transport is configured for plaintext (SslEnabled=false) against non-loopback host '{Host}'. Production deployments should use TLS; set SslEnabled=true (the default) and configure certificates. To suppress this warning set SuppressPlaintextWarning=true on the transport configuration.")] + public static partial void PlaintextOnNonLoopbackHost(ILogger logger, string host); +} diff --git a/src/ServiceConnect/Services/BusAccessor.cs b/src/ServiceConnect/Services/BusAccessor.cs new file mode 100644 index 000000000..b80dea0e5 --- /dev/null +++ b/src/ServiceConnect/Services/BusAccessor.cs @@ -0,0 +1,35 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Services; + +/// +/// Mutable holder for the singleton , populated by the +/// factory as soon as the Bus instance is constructed. +/// +/// Components that need a deferred reference to (typically to break a +/// circular dependency at construction time) resolve a bound to +/// this accessor rather than capturing the root . Capturing +/// the root provider inside a lazy factory risks deadlock when the factory is touched +/// during Bus construction — a scenario silent failures are hard to diagnose for. Reading +/// before it has been set surfaces a clear error instead. +/// +/// +internal sealed class BusAccessor +{ + private IBus? _bus; + + public IBus? Bus => Volatile.Read(ref _bus); + + public void Set(IBus bus) + { + ArgumentNullException.ThrowIfNull(bus); + Volatile.Write(ref _bus, bus); + } + + public IBus GetOrThrow() + { + var bus = Volatile.Read(ref _bus) ?? throw new InvalidOperationException( + "IBus was accessed before it finished constructing. Components must not dereference Lazy.Value during Bus construction."); + return bus; + } +} diff --git a/src/ServiceConnect/Services/BusHostedService.cs b/src/ServiceConnect/Services/BusHostedService.cs new file mode 100644 index 000000000..1bb9e640a --- /dev/null +++ b/src/ServiceConnect/Services/BusHostedService.cs @@ -0,0 +1,140 @@ +using Microsoft.Extensions.Hosting; +using Microsoft.Extensions.Logging; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; + +namespace ServiceConnect.Services; + +/// +/// Hosted-service adapter that starts and stops bus consumption with the application host. +/// +/// +/// +/// Single-use lifecycle. The underlying permanently latches its +/// stopped flag after completes. If the host or an orchestrator +/// recycles this service — calling again on the same instance +/// without disposing the bus — will throw +/// , which surfaces to the host as a startup failure. +/// +/// +/// The correct recovery path is to let the DI container dispose the bus (and this hosted +/// service) and resolve fresh instances for the new application lifetime. Do not attempt to +/// restart the same instance after a stop. +/// +/// +internal sealed class BusHostedService( + IBus bus, + IBusConfiguration config, + ITransportConfiguration transport, + ILogger logger, + IReadOnlyList? scanWarnings = null, + IProducer? producer = null) : IHostedService +{ + /// + /// Starts the bus automatically when is enabled. + /// + /// A token used to cancel host startup. + public async Task StartAsync(CancellationToken cancellationToken) + { + // Fail fast at host start if no producer was registered. The IConsumer-missing + // case is already caught further down by bus.StartConsumingAsync; the producer- + // missing case used to surface only at first Publish/Send/CreateStream, which + // delayed the operator signal from host build to first message dispatch. + if (producer is null && !config.AllowMissingProducer) + { + throw new InvalidOperationException( + "No IProducer is registered. Call UseRabbitMQ() (or another transport extension) before " + + "the host is built, or set BusConfiguration.AllowMissingProducer = true if this is an " + + "intentional consume-only or in-memory test bus."); + } + + // Replay handler-scan warnings captured before the logger was available. + // A broken handler assembly that survives the scan with no warning shows up + // only when a message arrives with no registered handler — surfacing the + // partial-scan warning here turns silent under-discovery into a startup log. + if (scanWarnings is { Count: > 0 }) + { + foreach (var warning in scanWarnings) + { + logger.LogWarning( + warning.Exception, + "Assembly {AssemblyName} threw {ExceptionType} during handler scan: {Detail}", + warning.AssemblyName, warning.ExceptionType, warning.Detail); + } + } + + // Adapter-independent plaintext check: warn when TLS is off against a non-loopback + // host so the safeguard survives adapter swaps. Docker Compose service names (e.g. + // "rabbitmq") that resolve to an internal network address but aren't loopback will + // fire here; set SuppressPlaintextWarning=true to silence intentional plaintext. + ServiceConnectBuilder.WarnIfPlaintextOnNonLoopbackHost(transport, logger); + + if (!config.ValidateReplyDestinations) + { + logger.LogWarning( + "ValidateReplyDestinations is disabled. Replies will not be verified against known queue mappings, " + + "allowing spoofed SourceAddress headers to redirect replies. This is not recommended for production."); + } + + if (!config.AutoStartConsuming) + { + logger.LogInformation("AutoStartConsuming is disabled."); + return; + } + + // Let exceptions propagate — the host should observe startup failures + // rather than silently report success when consuming never started. + await bus.StartConsumingAsync(cancellationToken).ConfigureAwait(false); + logger.LogInformation("Bus auto-started consuming."); + } + + /// + /// Stops bus consumption during host shutdown. + /// + /// A token used to cancel host shutdown. + /// + /// Bounds the wait on bus.StopConsumingAsync with + /// ; if the + /// consumer hasn't drained inside that window, a warning is logged and the host + /// continues shutting down. A non-cooperative transport must not block host shutdown. + /// + public async Task StopAsync(CancellationToken cancellationToken) + { + var graceMs = transport.GracefulShutdownTimeoutMilliseconds; + if (graceMs <= 0) + { + await bus.StopConsumingAsync(cancellationToken).ConfigureAwait(false); + return; + } + + using var graceCts = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken); + var stopTask = bus.StopConsumingAsync(graceCts.Token); + var graceTask = Task.Delay(graceMs, cancellationToken); + var winner = await Task.WhenAny(stopTask, graceTask).ConfigureAwait(false); + + if (winner == graceTask && !stopTask.IsCompleted) + { + if (cancellationToken.IsCancellationRequested) + { + // The host's outer CT fired (container kill, operator Ctrl+C, host shutdown + // grace expired) — not grace exhaustion. Fall through to await stopTask so + // the OCE propagates naturally without a misleading "grace exceeded" warning. + } + else + { + logger.LogWarning( + "Bus.StopConsumingAsync did not complete within GracefulShutdownTimeoutMilliseconds={GraceMs}; cancelling and continuing host shutdown.", + graceMs); + await graceCts.CancelAsync().ConfigureAwait(false); + // Observe the task to prevent UnobservedTaskException; don't await its completion. + _ = stopTask.ContinueWith(static t => _ = t.Exception, CancellationToken.None, TaskContinuationOptions.OnlyOnFaulted | TaskContinuationOptions.ExecuteSynchronously, TaskScheduler.Default); + return; + } + } + + // Either stopTask completed inside the grace window, OR the host's outer CT fired + // (causing both tasks to cancel via the linked CTS). Await stopTask so any + // consumer-side exception or OCE propagates naturally. + await stopTask.ConfigureAwait(false); + } +} diff --git a/src/ServiceConnect/Services/ConsumeContext.cs b/src/ServiceConnect/Services/ConsumeContext.cs new file mode 100644 index 000000000..c0f204b24 --- /dev/null +++ b/src/ServiceConnect/Services/ConsumeContext.cs @@ -0,0 +1,278 @@ +using System.Collections.Generic; +using System.Collections.ObjectModel; +using System.Runtime.CompilerServices; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Interfaces.Options; + +namespace ServiceConnect.Services; + +/// +/// Default implementation exposed to message handlers while a message is being processed. +/// +internal sealed class ConsumeContext : IConsumeContext +{ + private readonly IQueueConfiguration _queueConfig; + private readonly IBusConfiguration _busConfig; + private readonly IReplyStatusRequestReplyManager? _replyStatusRequestReplyManager; + + /// + /// Creates a consume context for a handler invocation. + /// + /// The bus instance that can be used for reply operations. + /// The decoded message headers. + /// The configured queue settings. + /// The configured bus settings. + /// The cancellation token for the current consume operation. + public ConsumeContext( + IBus bus, + IDictionary headers, + IQueueConfiguration queueConfig, + IBusConfiguration busConfig, + CancellationToken cancellationToken = default) + : this(bus, headers, queueConfig, busConfig, null, cancellationToken) + { + } + + internal ConsumeContext( + IBus bus, + IDictionary headers, + IQueueConfiguration queueConfig, + IBusConfiguration busConfig, + IReplyStatusRequestReplyManager? replyStatusRequestReplyManager, + CancellationToken cancellationToken = default) + { + Bus = bus; + _queueConfig = queueConfig; + _busConfig = busConfig; + _replyStatusRequestReplyManager = replyStatusRequestReplyManager; + Headers = new ReadOnlyDictionary( + headers as Dictionary ?? new Dictionary(headers, StringComparer.Ordinal)); + CancellationToken = cancellationToken; + } + + /// + public IBus Bus { get; } + + /// + /// Read-only view exposed to user handlers. The transport layer retains the + /// mutable and continues to write pipeline + /// headers (TimeProcessed, DestinationAddress, etc.) via that reference. + /// + public IReadOnlyDictionary Headers { get; } + /// + public CancellationToken CancellationToken { get; } + + // Cached backing fields — HeaderDecoder.Decode + Guid.TryParse are called only once + // per ConsumeContext instance regardless of how many times the properties are read. + // + // Memory-model contract: each cached payload field is plain; the volatile bool flag + // publishes it. Writers MUST write the payload before the flag; readers MUST check + // the flag before reading the payload. The flag's release/acquire semantics + // guarantee a non-torn payload read on every architecture (incl. weakly-ordered ARM). + // A racing reader may run the resolution twice (idempotent — string compare / + // Guid.TryParse on the same input), but never observes a torn write. + private string? _messageId; + private volatile bool _messageIdCached; + private Guid _correlationIdValue; + private volatile bool _correlationIdCached; + + /// + public string? MessageId + { + get + { + if (_messageIdCached) + { + return _messageId; + } + + var value = Headers.TryGetValue(HeaderKeys.MessageId, out var raw) + ? HeaderDecoder.Decode(raw) : null; + _messageId = value; + _messageIdCached = true; // volatile write — release barrier publishes _messageId + return value; + } + } + + /// + public Guid CorrelationId + { + get + { + if (_correlationIdCached) + { + return _correlationIdValue; + } + + var value = Headers.TryGetValue(HeaderKeys.CorrelationId, out var raw) + && Guid.TryParse(HeaderDecoder.Decode(raw), out var id) + ? id : Guid.Empty; + _correlationIdValue = value; + _correlationIdCached = true; // volatile write — release barrier publishes _correlationIdValue + return value; + } + } + + /// + public async Task ReplyAsync(TReply message, ReplyOptions? options = null, CancellationToken cancellationToken = default) + where TReply : Message + { + var sourceAddress = GetDecodedHeader(Headers, HeaderKeys.SourceAddress); + if (string.IsNullOrEmpty(sourceAddress)) + { + throw new InvalidOperationException("Cannot reply: incoming message has no SourceAddress header."); + } + + var requestMessageId = GetDecodedHeader(Headers, HeaderKeys.RequestMessageId); + var isTrustedRequestReply = IsTrustedRequestReplyEnvelope(Headers, _queueConfig, _replyStatusRequestReplyManager, _busConfig, requestMessageId, sourceAddress); + + if (_busConfig.ValidateReplyDestinations && !isTrustedRequestReply && !IsKnownQueue(sourceAddress, _queueConfig)) + { + throw new InvalidOperationException( + $"Cannot reply: SourceAddress '{sourceAddress}' is not a recognized queue. " + + "This may indicate a spoofed message. Configure queue mappings or use RequestReplyManager for safe replies."); + } + + var callerHeaders = options?.Headers; + Dictionary replyHeaders = callerHeaders is null + ? new Dictionary(StringComparer.Ordinal) + : new Dictionary(callerHeaders, StringComparer.Ordinal); + if (!string.IsNullOrEmpty(requestMessageId)) + { + replyHeaders[HeaderKeys.ResponseMessageId] = requestMessageId; + } + + var sendOptions = new SendOptions { EndPoint = sourceAddress, Headers = replyHeaders }; + await Bus.SendAsync(message, sendOptions, cancellationToken).ConfigureAwait(false); + } + + // Per-IQueueConfiguration cache of the flattened reply-allow-list. ConditionalWeakTable + // keys by reference identity and GCs entries with their owning config, so a long-lived + // bus instance computes the set once and a transient test config doesn't pin memory. + // The factory's HashSet captures the well-known queue names alongside every mapped + // queue, all under OrdinalIgnoreCase to match the original string.Equals contract. + private static readonly ConditionalWeakTable> KnownQueueCache = []; + + internal static bool IsKnownQueue(string address, IQueueConfiguration queueConfig) + { + var set = KnownQueueCache.GetValue(queueConfig, BuildKnownQueueSet); + return set.Contains(address); + } + + // Callers must populate all queue mappings on IQueueConfiguration before the first + // IsKnownQueue lookup; the cache entry is computed once per config instance and is + // never invalidated. Production wiring (QueueConfiguration.Freeze) enforces this + // today by sealing the config before message dispatch starts. + private static HashSet BuildKnownQueueSet(IQueueConfiguration queueConfig) + { + var set = new HashSet(StringComparer.OrdinalIgnoreCase); + if (!string.IsNullOrEmpty(queueConfig.QueueName)) + { + set.Add(queueConfig.QueueName); + } + + if (!string.IsNullOrEmpty(queueConfig.ErrorQueueName)) + { + set.Add(queueConfig.ErrorQueueName); + } + + if (!string.IsNullOrEmpty(queueConfig.AuditQueueName)) + { + set.Add(queueConfig.AuditQueueName); + } + + foreach (var kvp in queueConfig.QueueMappings) + { + foreach (var queue in kvp.Value) + { + if (!string.IsNullOrEmpty(queue)) + { + set.Add(queue); + } + } + } + + return set; + } + + /// + /// Determines whether the inbound envelope should be trusted as a legitimate request + /// the local bus may safely reply to, bypassing the + /// queue allow-list. + /// + /// + /// + /// Two paths grant trust: + /// + /// + /// + /// Tracked request — the local + /// records the RequestMessageId, proving WE originated the request. This + /// path is always honoured. + /// + /// + /// Heuristic fallback — the headers look like a request envelope (non-empty + /// RequestMessageId, no ResponseMessageId, non-empty + /// SourceAddress and MessageId, DestinationAddress equals our + /// queue). This preserves cross-bus request-reply where the originator is a + /// different bus instance whose RequestMessageId we cannot have tracked. + /// Every header here can be crafted by any external producer that knows our queue + /// name, so a hostile peer can redirect our reply by spoofing them. The fallback + /// is gated on : when that + /// flag is true the fallback is disabled and only the tracked-request path + /// above is trusted. + /// + /// + /// + /// Default is false, so + /// existing behaviour is preserved exactly. Set the flag to true to remove the + /// crafted-envelope attack surface in deployments that don't depend on cross-bus + /// request-reply. + /// + /// + internal static bool IsTrustedRequestReplyEnvelope( + IReadOnlyDictionary headers, + IQueueConfiguration queueConfig, + IReplyStatusRequestReplyManager? replyStatusRequestReplyManager, + IBusConfiguration busConfig, + string? requestMessageId = null, + string? sourceAddress = null) + { + requestMessageId ??= GetDecodedHeader(headers, HeaderKeys.RequestMessageId); + if (string.IsNullOrEmpty(requestMessageId)) + { + return false; + } + + if (replyStatusRequestReplyManager?.IsTrackedRequest(requestMessageId) == true) + { + return true; + } + + // Strict mode disables the heuristic fallback — only locally-tracked requests are + // trusted. The fallback below relies on headers (RequestMessageId, SourceAddress, + // MessageId, DestinationAddress) that can all be set by any external producer that + // knows our queue name; trusting them is necessary for cross-bus request-reply but + // exposes a redirect-our-reply attack surface. See IBusConfiguration. + if (busConfig.StrictReplyValidation) + { + return false; + } + + sourceAddress ??= GetDecodedHeader(headers, HeaderKeys.SourceAddress); + var responseMessageId = GetDecodedHeader(headers, HeaderKeys.ResponseMessageId); + var destinationAddress = GetDecodedHeader(headers, HeaderKeys.DestinationAddress); + var messageId = GetDecodedHeader(headers, HeaderKeys.MessageId); + + return string.IsNullOrEmpty(responseMessageId) + && !string.IsNullOrEmpty(sourceAddress) + && !string.IsNullOrEmpty(messageId) + && string.Equals(destinationAddress, queueConfig.QueueName, StringComparison.OrdinalIgnoreCase); + } + + internal static string? GetDecodedHeader(IReadOnlyDictionary headers, string key) + { + return headers.TryGetValue(key, out var value) ? HeaderDecoder.Decode(value) : null; + } +} diff --git a/src/ServiceConnect/Services/ConsumeContextAccessor.cs b/src/ServiceConnect/Services/ConsumeContextAccessor.cs new file mode 100644 index 000000000..6044ae593 --- /dev/null +++ b/src/ServiceConnect/Services/ConsumeContextAccessor.cs @@ -0,0 +1,39 @@ +using System.Threading; + +namespace ServiceConnect.Services; + +internal sealed class ConsumeContextAccessor : IConsumeContextAccessor +{ + private readonly AsyncLocal?> _currentHeaders = new(); + + public IReadOnlyDictionary? CurrentHeaders => _currentHeaders.Value; + + public IDisposable Push(IReadOnlyDictionary headers) + { + var previous = _currentHeaders.Value; + _currentHeaders.Value = headers; + return new Scope(this, previous); + } + + private sealed class Scope(ConsumeContextAccessor owner, IReadOnlyDictionary? previous) : IDisposable + { + private readonly ConsumeContextAccessor _owner = owner; + private readonly IReadOnlyDictionary? _previous = previous; + private int _disposed; + + public void Dispose() + { + // Interlocked latch matches ConsumeScopeAccessor.Popper. Two threads disposing + // concurrently would otherwise both write _currentHeaders.Value = previous. + // Current call sites always wrap Push in a single `using`, so the race is + // theoretical — but the inconsistency is a footgun for any future caller + // disposing from a finalizer or fire-and-forget continuation. + if (Interlocked.Exchange(ref _disposed, 1) != 0) + { + return; + } + + _owner._currentHeaders.Value = _previous; + } + } +} diff --git a/src/ServiceConnect/Services/ConsumeContextPool.cs b/src/ServiceConnect/Services/ConsumeContextPool.cs new file mode 100644 index 000000000..84f2d2df2 --- /dev/null +++ b/src/ServiceConnect/Services/ConsumeContextPool.cs @@ -0,0 +1,287 @@ +using System.Collections.Concurrent; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Interfaces.Options; + +namespace ServiceConnect.Services; + +internal sealed class ConsumeContextPool +{ + // Bleed excess contexts to GC rather than growing the pool unboundedly under bursts. + private const int MaxPoolSize = 512; + + private static readonly Dictionary EmptyHeaders = new(StringComparer.Ordinal); + private readonly ConcurrentBag _pool = []; + + public RentalHandle Rent( + IBus bus, + IDictionary headers, + IQueueConfiguration queueConfig, + IBusConfiguration busConfig, + IReplyStatusRequestReplyManager? replyStatusRequestReplyManager, + CancellationToken cancellationToken) + { + if (!_pool.TryTake(out var context)) + { + context = new PooledConsumeContext(this); + } + + var token = context.Initialize(bus, headers, queueConfig, busConfig, replyStatusRequestReplyManager, cancellationToken); + return new RentalHandle(context, token); + } + + private void Return(PooledConsumeContext context) + { + // Cheap upper bound: ConcurrentBag has no Count that is both fast and exact, but + // the Count property is O(n) over segments. For our pool sizes this is acceptable + // and a rare cost compared to burst arrivals. + if (_pool.Count >= MaxPoolSize) + { + return; + } + + _pool.Add(context); + } + + /// + /// Caller-side handle returned by . Captures the + /// rent-token at rent time so that the guard compares the snapshot against the pooled + /// instance's current generation — a stale reference retains the old snapshot and throws + /// once the instance is released and re-rented. + /// + internal readonly struct RentalHandle(PooledConsumeContext inner, long token) : IConsumeContext + { + private readonly PooledConsumeContext _inner = inner; + private readonly long _token = token; + + public IBus Bus { get { _inner.EnsureActive(_token); return _inner.BusUnsafe; } } + public IReadOnlyDictionary Headers { get { _inner.EnsureActive(_token); return _inner.HeadersUnsafe; } } + public CancellationToken CancellationToken { get { _inner.EnsureActive(_token); return _inner.CancellationTokenUnsafe; } } + + public string? MessageId + { + get + { + _inner.EnsureActive(_token); + return _inner.GetOrCacheMessageId(); + } + } + + public Guid CorrelationId + { + get + { + _inner.EnsureActive(_token); + return _inner.GetOrCacheCorrelationId(); + } + } + + public Task ReplyAsync(TReply message, ReplyOptions? options = null, CancellationToken cancellationToken = default) + where TReply : Message + { + _inner.EnsureActive(_token); + return _inner.ReplyAsyncCore(message, options, cancellationToken); + } + + public void Release() + { + _inner.Release(); + } + } + + internal sealed class PooledConsumeContext(ConsumeContextPool owner) : IConsumeContext + { + private readonly ConsumeContextPool _owner = owner; + private Dictionary _headers = EmptyHeaders; + private IQueueConfiguration _queueConfig = null!; + private IBusConfiguration _busConfig = null!; + private IReplyStatusRequestReplyManager? _replyStatusRequestReplyManager; + private string? _messageId; + // Cached backing fields — same memory-model contract as ConsumeContext: each payload + // field is plain; the volatile bool flag publishes it. Writers MUST write the payload + // before the flag (release barrier); readers MUST check the flag before reading the + // payload. Volatile flag-clear in Release/Initialize happens BEFORE the payload clear + // so a reader who sees the flag false never observes a stale payload from the + // previous rental. + private volatile bool _messageIdCached; + private Guid _correlationIdValue; + private volatile bool _correlationIdCached; + + // Rent-token guard: every Initialize bumps the instance token; Release bumps it + // again. The RentalHandle struct captures the token at rent time. If a caller holds + // onto the RentalHandle after Release, its snapshot no longer matches the instance's + // _rentToken and EnsureActive(snapshot) throws rather than returning another + // handler's data. + private long _rentToken; + // Idempotency guard for Release: 0 = active (held by caller), 1 = pooled. + // Release CAS-flips 1 only on the active->pooled transition; a defensive + // double-Release CAS-flips 0->1 the first call (pushes to pool), then sees + // the field is already 1 and no-ops the second call. Without this guard a + // double-Release would push the same instance into _pool twice and two + // concurrent Rent calls would hand the same underlying instance to two + // handlers — a use-after-rent corruption. + private int _pooled; + + // Unsafe accessors — callers MUST call EnsureActive(_token) before using these. + internal IBus BusUnsafe { get; private set; } = null!; + internal IReadOnlyDictionary HeadersUnsafe => _headers; + internal CancellationToken CancellationTokenUnsafe { get; private set; } + + // IConsumeContext explicit implementation routes through RentalHandle; direct use + // of the pooled instance (without a captured token) is intentionally unsupported. + IBus IConsumeContext.Bus => throw new NotSupportedException("Use RentalHandle."); + IReadOnlyDictionary IConsumeContext.Headers => throw new NotSupportedException("Use RentalHandle."); + CancellationToken IConsumeContext.CancellationToken => throw new NotSupportedException("Use RentalHandle."); + string? IConsumeContext.MessageId => throw new NotSupportedException("Use RentalHandle."); + Guid IConsumeContext.CorrelationId => throw new NotSupportedException("Use RentalHandle."); + Task IConsumeContext.ReplyAsync(TReply message, ReplyOptions? options, CancellationToken cancellationToken) + => throw new NotSupportedException("Use RentalHandle."); + + internal string? GetOrCacheMessageId() + { + if (!_messageIdCached) + { + _messageId = _headers.TryGetValue(HeaderKeys.MessageId, out var value) + ? HeaderDecoder.Decode(value) : null; + _messageIdCached = true; // volatile write — release barrier publishes _messageId + } + return _messageId; + } + + internal Guid GetOrCacheCorrelationId() + { + if (!_correlationIdCached) + { + _correlationIdValue = _headers.TryGetValue(HeaderKeys.CorrelationId, out var value) + && Guid.TryParse(HeaderDecoder.Decode(value), out var id) + ? id : Guid.Empty; + _correlationIdCached = true; // volatile write — release barrier publishes _correlationIdValue + } + return _correlationIdValue; + } + + internal long Initialize( + IBus bus, + IDictionary headers, + IQueueConfiguration queueConfig, + IBusConfiguration busConfig, + IReplyStatusRequestReplyManager? replyStatusRequestReplyManager, + CancellationToken cancellationToken) + { + // Write all instance fields BEFORE bumping the rent token. The Interlocked.Increment + // below acts as the publish-fence: a third party who captures a stale handle and + // does EnsureActive(prevToken) → field-read could otherwise observe the new token + // (via Volatile.Read) but a still-stale BusUnsafe / CancellationTokenUnsafe under + // weak memory ordering (ARM64). Writing fields first ensures the field-state + // publish happens-before the token publish, so any reader who sees the new token + // is guaranteed to see the fresh fields. + BusUnsafe = bus; + _queueConfig = queueConfig; + _busConfig = busConfig; + _replyStatusRequestReplyManager = replyStatusRequestReplyManager; + CancellationTokenUnsafe = cancellationToken; + _headers = headers as Dictionary ?? new Dictionary(headers, StringComparer.Ordinal); + // Flag-clear before payload-clear: a reader who sees the flag false never + // observes a stale payload from the previous rental. + _messageIdCached = false; + _messageId = null; + _correlationIdCached = false; + _correlationIdValue = default; + // Re-arm the idempotency guard so a future Release can transition active->pooled + // exactly once. Sequenced before the token bump so an EnsureActive reader who + // sees the new token never observes _pooled=1 (which would indicate the context + // is already back in the pool). + Volatile.Write(ref _pooled, 0); + // Token bump publishes all preceding writes via the Interlocked full fence; the + // matching acquire is Volatile.Read in EnsureActive. + return Interlocked.Increment(ref _rentToken); + } + + internal void EnsureActive(long expectedToken) + { + if (Volatile.Read(ref _rentToken) != expectedToken) + { + throw new InvalidOperationException( + "IConsumeContext is no longer valid — it was released when the handler returned. " + + "Do not capture it beyond the handler lifetime."); + } + } + + internal Task ReplyAsyncCore(TReply message, ReplyOptions? options, CancellationToken cancellationToken) + where TReply : Message + { + var sourceAddress = ConsumeContext.GetDecodedHeader(_headers, HeaderKeys.SourceAddress); + if (string.IsNullOrEmpty(sourceAddress)) + { + throw new InvalidOperationException("Cannot reply: incoming message has no SourceAddress header."); + } + + var requestMessageId = ConsumeContext.GetDecodedHeader(_headers, HeaderKeys.RequestMessageId); + var isTrustedRequestReply = ConsumeContext.IsTrustedRequestReplyEnvelope( + _headers, + _queueConfig, + _replyStatusRequestReplyManager, + _busConfig, + requestMessageId, + sourceAddress); + + if (_busConfig.ValidateReplyDestinations && !isTrustedRequestReply && !ConsumeContext.IsKnownQueue(sourceAddress, _queueConfig)) + { + throw new InvalidOperationException( + $"Cannot reply: SourceAddress '{sourceAddress}' is not a recognized queue. " + + "This may indicate a spoofed message. Configure queue mappings or use RequestReplyManager for safe replies."); + } + + var callerHeaders = options?.Headers; + Dictionary replyHeaders = callerHeaders is null + ? new Dictionary(StringComparer.Ordinal) + : new Dictionary(callerHeaders, StringComparer.Ordinal); + if (!string.IsNullOrEmpty(requestMessageId)) + { + replyHeaders[HeaderKeys.ResponseMessageId] = requestMessageId; + } + + var sendOptions = new SendOptions { EndPoint = sourceAddress, Headers = replyHeaders }; + return BusUnsafe.SendAsync(message, sendOptions, cancellationToken); + } + + public void Release() + { + // Invalidate the outstanding RentalHandle view held by consumers before + // handing the context back to the pool. The Interlocked.Increment is the + // publish-fence: any reader that observes the new _rentToken via Volatile.Read + // happens-after our field clears below — so a stale RentalHandle calling + // EnsureActive(oldToken) sees the mismatch and throws; a never-rented field + // read via the IConsumeContext explicit-interface path already throws + // NotSupportedException. + Interlocked.Increment(ref _rentToken); + + // Null mutable references so the previous message's headers / bus / inflight CT + // are GC-reclaimable while the context sits in the pool. Without this clear, a + // pooled instance keeps the broker-supplied headers dict and bus reference alive + // until next Rent, which on a quiet bus after a burst pins ≤ MaxPoolSize×N + // unnecessarily. Safe because the rent-token bump above invalidated every + // outstanding RentalHandle. + _headers = EmptyHeaders; + BusUnsafe = null!; + CancellationTokenUnsafe = default; + _replyStatusRequestReplyManager = null; + // Flag-clear before payload-clear: a reader who sees the flag false never + // observes a stale payload from the previous rental. + _messageIdCached = false; + _messageId = null; + _correlationIdCached = false; + _correlationIdValue = default; + + // Idempotency guard: only the first Release call after Initialize transitions + // _pooled from 0 to 1; a defensive double-Release CAS-fails the second call + // and skips the Return. Without this guard the same instance would be added + // to _pool twice and two concurrent Rent calls would hand it out to two + // handlers (use-after-rent corruption). + if (Interlocked.Exchange(ref _pooled, 1) == 0) + { + _owner.Return(this); + } + } + } +} diff --git a/src/ServiceConnect/Services/ConsumeScopeAccessor.cs b/src/ServiceConnect/Services/ConsumeScopeAccessor.cs new file mode 100644 index 000000000..a9ce34ee3 --- /dev/null +++ b/src/ServiceConnect/Services/ConsumeScopeAccessor.cs @@ -0,0 +1,67 @@ +using Microsoft.Extensions.DependencyInjection; + +namespace ServiceConnect.Services; + +/// +/// Flows the current per-message dependency-injection scope through AsyncLocal so that +/// inbound filters, middleware, and processors can resolve scoped services from the +/// same container scope the dispatcher established for the message. The outbound filter +/// path in pushes a fresh scope around each call for the same reason. +/// +/// +/// Fire-and-forget reader hazard. The accessor uses , +/// which propagates writes only along the current . A +/// handler that starts a fire-and-forget task while the scope is live captures the +/// ambient context at that point — the captured task continues to see the pushed +/// scope after the using-block disposes. The dispatcher disposes the underlying DI +/// scope on return, so a leaked continuation that reads will +/// observe an whose backing scope has been disposed; +/// subsequent GetService calls throw . +/// +/// Rule for handler authors: never read from a task that +/// outlives the handler's awaited completion. Capture any required scoped service +/// into a local before starting fire-and-forget work. +/// +/// +internal sealed class ConsumeScopeAccessor : IConsumeScopeAccessor +{ + // Instance-scoped AsyncLocal so multiple ConsumeScopeAccessor instances in the same + // AppDomain (e.g. two Bus instances) maintain independent scopes. A static AsyncLocal + // here would leak scopes across bus boundaries. + private readonly AsyncLocal _current = new(); + + /// + /// Pushes as the current scope. The returned + /// disposable restores the previous value, supporting nested pushes. + /// + public IDisposable Push(IServiceProvider serviceProvider) + { + ArgumentNullException.ThrowIfNull(serviceProvider); + var previous = _current.Value; + _current.Value = serviceProvider; + return new Popper(this, previous); + } + + /// + /// Returns the current scope's . Throws when no scope + /// is pushed — callers must establish a scope (via ) before use. + /// + public IServiceProvider Current => + _current.Value ?? throw new InvalidOperationException( + "No consume scope is currently active. The dispatcher and outbound filter path must push a scope before resolving scoped services."); + + private sealed class Popper(ConsumeScopeAccessor outer, IServiceProvider? previous) : IDisposable + { + private int _disposed; + + public void Dispose() + { + if (Interlocked.Exchange(ref _disposed, 1) != 0) + { + return; + } + + outer._current.Value = previous; + } + } +} diff --git a/src/ServiceConnect/Services/FilterPipeline.cs b/src/ServiceConnect/Services/FilterPipeline.cs new file mode 100644 index 000000000..262838b86 --- /dev/null +++ b/src/ServiceConnect/Services/FilterPipeline.cs @@ -0,0 +1,61 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; + +namespace ServiceConnect.Services; + +/// +/// Resolves and executes configured filters for outgoing and incoming message envelopes. +/// Filters are resolved per call from so that +/// scoped dependencies honour the same message scope as the dispatcher and handlers. +/// +internal sealed class FilterPipeline(IPipelineConfiguration config, IConsumeScopeAccessor scopeAccessor) : IFilterPipeline +{ + /// + public Task ExecuteOutgoingFiltersAsync(Envelope envelope, CancellationToken cancellationToken = default) + { + return ExecuteFiltersAsync(config.OutgoingFilters, envelope, cancellationToken); + } + + /// + public Task ExecuteBeforeConsumingFiltersAsync(Envelope envelope, CancellationToken cancellationToken = default) + { + return ExecuteFiltersAsync(config.BeforeConsumingFilters, envelope, cancellationToken); + } + + /// + public Task ExecuteAfterConsumingFiltersAsync(Envelope envelope, CancellationToken cancellationToken = default) + { + return ExecuteFiltersAsync(config.AfterConsumingFilters, envelope, cancellationToken); + } + + /// + public Task ExecuteOnConsumedSuccessfullyFiltersAsync(Envelope envelope, CancellationToken cancellationToken = default) + { + return ExecuteFiltersAsync(config.OnConsumedSuccessfullyFilters, envelope, cancellationToken); + } + + private async Task ExecuteFiltersAsync(IReadOnlyList filterTypes, Envelope envelope, CancellationToken cancellationToken) + { + if (filterTypes == null || filterTypes.Count == 0) + { + return FilterAction.Continue; + } + + var serviceProvider = scopeAccessor.Current; + + foreach (Type filterType in filterTypes) + { + cancellationToken.ThrowIfCancellationRequested(); + var filter = (IFilter)serviceProvider.GetRequiredService(filterType); + + FilterAction action = await filter.ProcessAsync(envelope, cancellationToken).ConfigureAwait(false); + if (action == FilterAction.Stop) + { + return FilterAction.Stop; + } + } + + return FilterAction.Continue; + } +} diff --git a/src/ServiceConnect/Services/HandlerScanWarning.cs b/src/ServiceConnect/Services/HandlerScanWarning.cs new file mode 100644 index 000000000..38cdae102 --- /dev/null +++ b/src/ServiceConnect/Services/HandlerScanWarning.cs @@ -0,0 +1,17 @@ +namespace ServiceConnect.Services; + +/// +/// A partial-scan warning captured during handler discovery. Registered as a DI singleton +/// list so the warnings can be replayed against the configured logger at host startup — +/// scan runs at DI-registration time before an ILoggerFactory is available, so +/// without this side-channel the warnings would be dropped to NullLogger.Instance. +/// +/// The full name of the assembly that failed (or "<unknown>"). +/// Short name of the thrown exception type. +/// Human-readable description of the partial scan outcome. +/// The original exception for log-record attachment. +internal sealed record HandlerScanWarning( + string AssemblyName, + string ExceptionType, + string Detail, + Exception Exception); diff --git a/src/ServiceConnect/Services/HandlerScanner.cs b/src/ServiceConnect/Services/HandlerScanner.cs new file mode 100644 index 000000000..8487f3ff3 --- /dev/null +++ b/src/ServiceConnect/Services/HandlerScanner.cs @@ -0,0 +1,195 @@ +using System.Reflection; +using Microsoft.Extensions.Logging; +using Microsoft.Extensions.Logging.Abstractions; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Services; + +/// +/// Discovers message, process, stream, and aggregator handlers from a set of assemblies. +/// +internal static class HandlerScanner +{ + /// + /// Scans the supplied assemblies and returns handler registrations keyed by handled message type. + /// + /// The assemblies to inspect. + /// Optional logger; when supplied, partial-scan warnings from + /// are reported with assembly name and loader exceptions. + /// When called from DI registration (where no logger is yet available), pass + /// and capture warnings via the + /// + /// overload so they can be replayed against the configured logger at startup. + /// A list of discovered handler references. + public static IReadOnlyList ScanForHandlers(IEnumerable assemblies, ILogger? logger = null) + => ScanForHandlersCore(assemblies, logger ?? NullLogger.Instance, warnings: null); + + /// + /// Like the logger-only overload, but additionally captures partial-scan warnings into + /// so a caller (typically the DI registration path that has + /// no logger yet) can replay them against the configured logger later. + /// + public static IReadOnlyList ScanForHandlers(IEnumerable assemblies, out IReadOnlyList warnings) + { + var collected = new List(); + var result = ScanForHandlersCore(assemblies, NullLogger.Instance, collected); + warnings = collected; + return result; + } + + private static IReadOnlyList ScanForHandlersCore(IEnumerable assemblies, ILogger logger, List? warnings) + { + var handlerReferences = new List(); + var messageHandlerType = typeof(IMessageHandler<>); + var processHandlerType = typeof(IProcessHandler<,>); + var streamHandlerType = typeof(IStreamHandler<>); + + foreach (var assembly in assemblies) + { + Type[] types; + try { types = assembly.GetTypes(); } + catch (ReflectionTypeLoadException ex) + { + // Partial scan — loaded types are still usable. Warn so a misconfigured deploy + // doesn't silently drop handlers until a message arrives with no handler. + types = ex.Types.Where(t => t != null).ToArray()!; + var loaderExceptionMessages = string.Join(" | ", (ex.LoaderExceptions ?? []) + .Where(e => e is not null).Select(e => e!.Message)); + logger.LogWarning( + ex, + "Assembly {AssemblyName} threw ReflectionTypeLoadException during handler scan; continuing with partial type list ({LoadedCount}/{RequestedCount}). Loader exceptions: {LoaderExceptionMessages}", + assembly.FullName ?? "", + types.Length, + ex.Types.Length, + loaderExceptionMessages); + warnings?.Add(new HandlerScanWarning( + assembly.FullName ?? "", + nameof(ReflectionTypeLoadException), + $"Partial type list ({types.Length}/{ex.Types.Length}). Loader exceptions: {loaderExceptionMessages}", + ex)); + } + catch (Exception ex) when (ex is FileNotFoundException + or FileLoadException + or BadImageFormatException + or TypeLoadException) + { + // GetTypes() can throw any of these for assemblies in the AppDomain that aren't + // properly resolvable: missing reference, version drift, mismatched native bitness, + // or a type whose dependent assembly is broken. Catch them all here so one broken + // assembly doesn't abort the entire scan and leave the host running with no + // handlers registered. Skip the offending assembly with a warning instead. + logger.LogWarning( + ex, + "Assembly {AssemblyName} threw {ExceptionType} during handler scan; skipping assembly.", + assembly.FullName ?? "", + ex.GetType().Name); + warnings?.Add(new HandlerScanWarning( + assembly.FullName ?? "", + ex.GetType().Name, + "Assembly skipped during handler scan.", + ex)); + types = []; + } + + foreach (var type in types) + { + if (type.IsAbstract || type.IsInterface || type.IsGenericTypeDefinition) + { + continue; + } + + // Scan IMessageHandler + foreach (var iface in type.GetInterfaces() + .Where(i => i.IsGenericType && i.GetGenericTypeDefinition() == messageHandlerType)) + { + var messageType = iface.GetGenericArguments()[0]; + if (messageType.IsGenericParameter) + { + continue; + } + + handlerReferences.Add(new HandlerReference + { + HandlerType = type, + MessageType = messageType, + InterfaceKind = HandlerInterfaceKind.MessageHandler, + }); + } + + // Scan IProcessHandler — message type is the last generic arg + foreach (var iface in type.GetInterfaces() + .Where(i => i.IsGenericType && i.GetGenericTypeDefinition() == processHandlerType)) + { + var messageType = iface.GetGenericArguments()[1]; + if (messageType.IsGenericParameter) + { + continue; + } + + handlerReferences.Add(new HandlerReference + { + HandlerType = type, + MessageType = messageType, + InterfaceKind = HandlerInterfaceKind.ProcessHandler, + }); + } + + // Scan IStreamHandler + foreach (var iface in type.GetInterfaces() + .Where(i => i.IsGenericType && i.GetGenericTypeDefinition() == streamHandlerType)) + { + var messageType = iface.GetGenericArguments()[0]; + if (messageType.IsGenericParameter) + { + continue; + } + + handlerReferences.Add(new HandlerReference + { + HandlerType = type, + MessageType = messageType, + InterfaceKind = HandlerInterfaceKind.StreamHandler, + }); + } + + // Scan Aggregator subclasses (full hierarchy walk so two+ level + // inheritance chains are discovered). + var aggregatorBase = FindAggregatorBaseType(type); + if (aggregatorBase is not null) + { + var messageType = aggregatorBase.GetGenericArguments()[0]; + if (!messageType.IsGenericParameter) + { + handlerReferences.Add(new HandlerReference + { + HandlerType = type, + MessageType = messageType, + InterfaceKind = HandlerInterfaceKind.Aggregator, + }); + } + } + } + } + return handlerReferences; + } + + /// + /// Walks the full base-type hierarchy of and returns the first + /// closed Aggregator<T> it finds, or if the type does + /// not descend from Aggregator<T>. Handles chains of any depth. + /// + internal static Type? FindAggregatorBaseType(Type type) + { + var current = type.BaseType; + while (current is not null && current != typeof(object)) + { + if (current.IsGenericType && + current.GetGenericTypeDefinition() == typeof(Aggregator<>)) + { + return current; + } + current = current.BaseType; + } + return null; + } +} diff --git a/src/ServiceConnect/Services/IConsumeContextAccessor.cs b/src/ServiceConnect/Services/IConsumeContextAccessor.cs new file mode 100644 index 000000000..cf92e0467 --- /dev/null +++ b/src/ServiceConnect/Services/IConsumeContextAccessor.cs @@ -0,0 +1,19 @@ +namespace ServiceConnect.Services; + +/// +/// AsyncLocal-backed accessor for the headers of the inbound message currently being dispatched. +/// Used by outbound paths (Bus.RouteAsync, middleware) to read the inbound hop counter and +/// other carried context. Implementations must be safe for concurrent reads across messages +/// (the AsyncLocal's per-flow value isolates them). +/// +internal interface IConsumeContextAccessor +{ + /// The current inbound headers, or when no consume flow is active. + IReadOnlyDictionary? CurrentHeaders { get; } + + /// + /// Pushes a headers view as the current flow's context. The returned + /// restores the previous value when disposed; supports nested pushes. + /// + IDisposable Push(IReadOnlyDictionary headers); +} diff --git a/src/ServiceConnect/Services/IConsumeScopeAccessor.cs b/src/ServiceConnect/Services/IConsumeScopeAccessor.cs new file mode 100644 index 000000000..3aa796269 --- /dev/null +++ b/src/ServiceConnect/Services/IConsumeScopeAccessor.cs @@ -0,0 +1,15 @@ +namespace ServiceConnect.Services; + +/// +/// AsyncLocal-backed accessor for the current per-message DI scope's . +/// Lets filters/middleware/processors resolve scoped services from the same scope the +/// dispatcher established for the inbound message. +/// +internal interface IConsumeScopeAccessor +{ + /// The current scope's . Throws when no scope is pushed. + IServiceProvider Current { get; } + + /// Pushes a scope; returned restores the previous value. + IDisposable Push(IServiceProvider serviceProvider); +} diff --git a/src/ServiceConnect/Services/IRegistryInitializer.cs b/src/ServiceConnect/Services/IRegistryInitializer.cs new file mode 100644 index 000000000..1f84daa0d --- /dev/null +++ b/src/ServiceConnect/Services/IRegistryInitializer.cs @@ -0,0 +1,15 @@ +namespace ServiceConnect.Services; + +/// +/// Eagerly initializes internal handler registries at startup to validate +/// handler configurations before the bus processes any messages. +/// Implementations perform registry resolution to trigger construction and validation. +/// +internal interface IRegistryInitializer +{ + /// + /// Initializes all handler registries, triggering eager validation of handler configurations. + /// Called automatically during Bus construction to fail fast on misconfigured handlers. + /// + void Initialize(); +} diff --git a/src/ServiceConnect/Services/IReplyStatusRequestReplyManager.cs b/src/ServiceConnect/Services/IReplyStatusRequestReplyManager.cs new file mode 100644 index 000000000..2689b344a --- /dev/null +++ b/src/ServiceConnect/Services/IReplyStatusRequestReplyManager.cs @@ -0,0 +1,7 @@ +namespace ServiceConnect.Services; + +internal interface IReplyStatusRequestReplyManager +{ + bool TryProcessReply(string messageId, ReadOnlyMemory messageBytes, Type type); + bool IsTrackedRequest(string messageId); +} diff --git a/src/ServiceConnect/Services/MessageBusReadStream.cs b/src/ServiceConnect/Services/MessageBusReadStream.cs new file mode 100644 index 000000000..3f40f15f8 --- /dev/null +++ b/src/ServiceConnect/Services/MessageBusReadStream.cs @@ -0,0 +1,265 @@ +using System.Collections.Concurrent; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Services; + +/// +/// Reassembles byte-stream packets for a single stream sequence into a readable payload. +/// +/// +/// Creates a read stream for the supplied sequence identifier. +/// +/// The identifier shared by all packets in the stream. +/// +/// Upper bound on the cumulative byte count will admit before throwing +/// . Defaults to 100 MB; the default preserves +/// historical behaviour for callers that construct the stream directly (tests). Production +/// construction routes through StreamProcessor, which threads the value configured on +/// IBusConfiguration.MaxStreamSizeBytes. +/// +internal sealed class MessageBusReadStream(string sequenceId, long maxTotalStreamSize = 100L * 1024 * 1024) : IMessageBusReadStream +{ + private readonly long _maxTotalStreamSize = maxTotalStreamSize; + private readonly ConcurrentDictionary _packets = new(); + private long _totalBytesWritten; + // Track received packet count with an atomic counter so IsComplete() is O(1). + private int _receivedCount; + + // Test-observability hooks. Used by StreamProcessor regression tests to confirm + // bytes did or did not land in this read stream after a Write. Not part of the + // public API surface — InternalsVisibleTo gates access. + internal long TotalBytesWritten => Interlocked.Read(ref _totalBytesWritten); + internal int ReceivedPacketCount => Volatile.Read(ref _receivedCount); + + /// + public string SequenceId { get; } = sequenceId ?? throw new ArgumentNullException(nameof(sequenceId)); + // -1 = unset. Writes are CAS-from-(-1) so a later (potentially duplicate) close + // packet cannot shrink or alter an already-set LastPacketNumber; reads use + // Volatile.Read so concurrent IsComplete checks never see a stale sentinel. + private long _lastPacketNumber = -1; + /// + public long LastPacketNumber => Volatile.Read(ref _lastPacketNumber); + + /// + public void SetLastPacketNumber(long lastPacketNumber) + { + if (lastPacketNumber < 0) + { + throw new ArgumentOutOfRangeException(nameof(lastPacketNumber)); + } + + // Pre-CAS validation: any already-received packet that exceeds the proposed + // LastPacketNumber means the stream is inconsistent regardless of the CAS outcome. + foreach (var key in _packets.Keys) + { + if (key > lastPacketNumber) + { + throw new InvalidOperationException( + $"Packet number {key} already received for stream {SequenceId} but exceeds " + + $"the requested LastPacketNumber {lastPacketNumber}. The stream is inconsistent."); + } + } + + var previous = Interlocked.CompareExchange(ref _lastPacketNumber, lastPacketNumber, -1); + if (previous != -1 && previous != lastPacketNumber) + { + throw new InvalidOperationException( + $"LastPacketNumber already set to {previous}; refusing to overwrite with {lastPacketNumber} for stream {SequenceId}."); + } + + // Post-CAS re-validation: a concurrent Write that read _lastPacketNumber == -1 + // before our CAS landed may have committed an out-of-range packet between the + // pre-CAS check and the CAS. Now that _lastPacketNumber is published every + // future Write rejects, but an in-flight Write that already TryAdd'd is still + // a violation we surface here. The stream is permanently poisoned at this point; + // the throw is the right surface (better than producing a silently truncated read). + foreach (var key in _packets.Keys) + { + if (key > lastPacketNumber) + { + throw new InvalidOperationException( + $"Packet number {key} arrived concurrently and exceeds LastPacketNumber {lastPacketNumber} for stream {SequenceId}. The stream is inconsistent."); + } + } + } + + /// + public void Write(ReadOnlyMemory data, long packetNumber) + { + if (packetNumber < 0) + { + throw new ArgumentOutOfRangeException(nameof(packetNumber), packetNumber, + "Packet number must be non-negative."); + } + + // Pre-commit upper-bound check: if LastPacketNumber is already set, reject + // packets above it before we reserve any state. + var preLast = Volatile.Read(ref _lastPacketNumber); + if (preLast >= 0 && packetNumber > preLast) + { + throw new ArgumentOutOfRangeException(nameof(packetNumber), packetNumber, + $"Packet number {packetNumber} exceeds LastPacketNumber {preLast} for stream {SequenceId}."); + } + + // RabbitMQ.Client does not extend the consumer-callback buffer lifetime past + // the callback return, so we must copy before storing. ToArray() is the copy. + var stored = data.ToArray(); + + // Atomically reserve capacity: if the reservation pushes us past the cap, + // roll it back before any concurrent writer can observe the inflated total + // and before we insert into the packet dictionary. + long newTotal = Interlocked.Add(ref _totalBytesWritten, data.Length); + if (newTotal > _maxTotalStreamSize) + { + Interlocked.Add(ref _totalBytesWritten, -data.Length); + throw new InvalidOperationException( + FormattableString.Invariant( + $"Stream exceeds maximum size of {_maxTotalStreamSize:N0} bytes (~{_maxTotalStreamSize / (1024.0 * 1024.0):F1} MB).")); + } + + if (!_packets.TryAdd(packetNumber, stored)) + { + // Broker redelivery: the same packet has arrived twice. Roll back the size + // reservation so the in-memory total mirrors the dictionary's contents and + // return without throwing; the caller treats this as an idempotent ack. + // The first payload wins — TryAdd does not overwrite. + Interlocked.Add(ref _totalBytesWritten, -data.Length); + return; + } + + // Post-commit re-check: between the pre-commit Volatile.Read above and the + // TryAdd, a concurrent SetLastPacketNumber may have published a value that + // makes our packet out-of-range. Catch that here so the silent-truncation + // window is closed — symmetric to SetLastPacketNumber's pre+post-CAS validation. + // TryRemove is safe under concurrent reads: ConcurrentDictionary guarantees + // atomicity of each individual operation, so a reader either sees this entry + // or doesn't; there is no torn read. + var postLast = Volatile.Read(ref _lastPacketNumber); + if (postLast >= 0 && packetNumber > postLast) + { + _packets.TryRemove(packetNumber, out _); + Interlocked.Add(ref _totalBytesWritten, -data.Length); + throw new ArgumentOutOfRangeException(nameof(packetNumber), packetNumber, + $"Packet number {packetNumber} exceeds LastPacketNumber {postLast} (set concurrently) for stream {SequenceId}."); + } + + // Increment only after the post-commit check so a rolled-back Write does + // not inflate the count used by IsComplete(). + Interlocked.Increment(ref _receivedCount); + } + + /// + /// + /// Thrown when the stream is not yet complete, when the assembled sequence has a missing + /// packet (packet loss or out-of-order completion signalling), or when the stream's + /// becomes unset between the completeness check and assembly. + /// A missing-packet exception is unrecoverable; treat the stream as corrupt and discard it. + /// + public byte[] Read() + { + if (!IsComplete()) + { + throw new InvalidOperationException("Stream is not yet complete."); + } + + // Capture LastPacketNumber into a local — defense-in-depth against any future + // regression that introduces a false-positive IsComplete() return. If the + // captured snapshot is invalid (e.g. became unset), surface immediately rather + // than producing a silently truncated read. + var lastSnapshot = LastPacketNumber; + if (lastSnapshot < 0) + { + throw new InvalidOperationException("Stream LastPacketNumber became unset between IsComplete and Read."); + } + + // Pre-size MemoryStream to avoid internal buffer doubling. + var totalBytes = Interlocked.Read(ref _totalBytesWritten); + using var ms = new MemoryStream(totalBytes > 0 ? (int)totalBytes : 0); + for (long i = 0; i <= lastSnapshot; i++) + { + if (!_packets.TryGetValue(i, out var packet)) + { + throw new InvalidOperationException( + $"Stream {SequenceId} is missing packet {i}; cannot assemble. " + + $"This indicates packet loss or out-of-order completion signalling."); + } + ms.Write(packet, 0, packet.Length); + } + return ms.ToArray(); + } + + /// + /// + /// Thrown when the stream is not yet complete, when the assembled sequence has a missing + /// packet (packet loss or out-of-order completion signalling), or when the stream's + /// becomes unset between the completeness check and assembly. + /// A missing-packet exception is unrecoverable; treat the stream as corrupt and discard it. + /// + public System.Buffers.ReadOnlySequence ReadSequence() + { + if (!IsComplete()) + { + throw new InvalidOperationException("Stream is not yet complete."); + } + + // Capture LastPacketNumber into a local — same defense-in-depth as Read. + var lastSnapshot = LastPacketNumber; + if (lastSnapshot < 0) + { + throw new InvalidOperationException("Stream LastPacketNumber became unset between IsComplete and ReadSequence."); + } + + // Walk packets 0..lastSnapshot in order, linking them into a ReadOnlySequenceSegment chain. + PacketSegment? first = null; + PacketSegment? last = null; + for (long i = 0; i <= lastSnapshot; i++) + { + if (!_packets.TryGetValue(i, out var packet)) + { + throw new InvalidOperationException( + $"Stream {SequenceId} is missing packet {i}; cannot assemble. " + + $"This indicates packet loss or out-of-order completion signalling."); + } + + if (first is null) + { + first = new PacketSegment(packet); + last = first; + } + else + { + last = last!.Append(packet); + } + } + + if (first is null) + { + return System.Buffers.ReadOnlySequence.Empty; + } + + return new System.Buffers.ReadOnlySequence(first, 0, last!, last!.Memory.Length); + } + + /// + public bool IsComplete() + { + // O(1) check — compare received packet count against expected count. + var last = Volatile.Read(ref _lastPacketNumber); + return last >= 0 && Volatile.Read(ref _receivedCount) == last + 1; + } + + private sealed class PacketSegment : System.Buffers.ReadOnlySequenceSegment + { + public PacketSegment(ReadOnlyMemory memory) + { + Memory = memory; + } + + public PacketSegment Append(ReadOnlyMemory memory) + { + var segment = new PacketSegment(memory) { RunningIndex = RunningIndex + Memory.Length }; + Next = segment; + return segment; + } + } +} diff --git a/src/ServiceConnect/Services/MessageBusWriteStream.cs b/src/ServiceConnect/Services/MessageBusWriteStream.cs new file mode 100644 index 000000000..2b40caf2a --- /dev/null +++ b/src/ServiceConnect/Services/MessageBusWriteStream.cs @@ -0,0 +1,337 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Services; + +/// +/// Splits a large payload into stream packets and sends them through the configured producer. +/// +internal sealed class MessageBusWriteStream : IMessageBusWriteStream +{ + private readonly IProducer _producer; + private readonly string _endpoint; + private readonly Type _messageType; + private readonly TimeProvider _timeProvider; + private readonly string _sequenceId; + private readonly Dictionary _baseHeaders; + private long _packetNumber; + // Set only after a CloseAsync's SendBytesAsync returns successfully. The durable + // success indicator: idempotent CloseAsync callers short-circuit on this; a transient + // close-packet send failure leaves _closedFlag=0 so a retry can re-enter and complete. + private int _closedFlag; + // Set the moment a close attempt begins. Never reset. WriteAsync rejects with + // ObjectDisposedException once this is 1, even if the close itself failed — a + // stream that began closing cannot un-close (mirrors the fault-flag's permanence). + private int _closeStarted; + // Single-flight gate over the drain+send body. CAS 0->1 to enter; reset to 0 in a + // finally block. On success _closedFlag=1 already short-circuits new entries; on + // failure resetting to 0 lets a retry re-enter and try the close-packet send again. + private int _closeInProgress; + // 0 = healthy, 1 = a SendBytesAsync call has thrown. Once faulted, WriteAsync refuses + // to consume another packet number — any subsequent send would land beyond the stranded + // number and create a permanent gap the reader can never close. + private int _faulted; + // Track in-flight writes so CloseAsync can drain them before reading _packetNumber + // for the close packet. Without the drain, a writer that cleared the _closedFlag check + // but hadn't yet Interlocked.Increment-ed would publish *after* the close packet with + // a number past LastPacketNumber — the reader drops it. + private int _inFlightWrites; + // Default close budget used in production. The instance field allows tests to + // inject a short value via the internal constructor without affecting other instances. + private static readonly TimeSpan DefaultCloseDrainTimeout = TimeSpan.FromSeconds(30); + private readonly TimeSpan _closeDrainTimeout; + + /// + /// Creates a write stream that targets a single endpoint and message type. + /// Uses for the close-drain deadline. + /// + /// The producer used to send stream packets. + /// The destination endpoint for the stream. + /// The logical message type represented by the stream. + public MessageBusWriteStream(IProducer producer, string endpoint, Type messageType) + : this(producer, endpoint, messageType, TimeProvider.System) { } + + /// + /// Creates a write stream that targets a single endpoint and message type. + /// + /// The producer used to send stream packets. + /// The destination endpoint for the stream. + /// The logical message type represented by the stream. + /// + /// The time provider used to compute the close-drain deadline. Inject a fake + /// provider in tests to control the timeout without relying on wall-clock time. + /// + public MessageBusWriteStream(IProducer producer, string endpoint, Type messageType, TimeProvider timeProvider) + : this(producer, endpoint, messageType, timeProvider, DefaultCloseDrainTimeout) { } + + /// + /// Creates a write stream with an explicit close-drain budget. + /// Intended for test use to exercise timeout paths without wall-clock waits. + /// + internal MessageBusWriteStream( + IProducer producer, string endpoint, Type messageType, + TimeProvider timeProvider, TimeSpan closeDrainTimeout) + { + _producer = producer ?? throw new ArgumentNullException(nameof(producer)); + _endpoint = endpoint ?? throw new ArgumentNullException(nameof(endpoint)); + _messageType = messageType ?? throw new ArgumentNullException(nameof(messageType)); + _timeProvider = timeProvider ?? throw new ArgumentNullException(nameof(timeProvider)); + _closeDrainTimeout = closeDrainTimeout; + _sequenceId = FormatGuid(Guid.NewGuid()); + // Type-reserved headers (FullTypeName / TypeName / MessageType) are stamped by + // the producer from _messageType — they must not be seeded here, since the + // producer treats them as server-authoritative and overwrites any caller value. + _baseHeaders = new Dictionary(StringComparer.Ordinal) + { + [HeaderKeys.SequenceId] = _sequenceId + }; + } + + /// + public async Task WriteAsync(ReadOnlyMemory buffer, CancellationToken cancellationToken = default) + { + cancellationToken.ThrowIfCancellationRequested(); + + // Reserve the in-flight slot BEFORE checking the close flag so that a concurrent + // CloseAsync observing _inFlightWrites == 0 cannot race past us. Rolled back below + // if the stream is already closed. + Interlocked.Increment(ref _inFlightWrites); + try + { + // _closeStarted reflects "a close attempt has begun" (set on CloseAsync entry, + // never reset). _closedFlag reflects "the close packet was successfully sent" + // (set only after SendBytesAsync returns). _closeStarted rejects new writes — + // a close-in-progress whose send hasn't completed must not admit late packets, + // since the close-packet number is reserved against _packetNumber's current + // value and a Write after that read would overshoot LastPacketNumber. + if (Volatile.Read(ref _closeStarted) == 1) + { + throw new ObjectDisposedException(nameof(MessageBusWriteStream)); + } + + if (Volatile.Read(ref _faulted) == 1) + { + throw new InvalidOperationException( + $"Stream {_sequenceId} is faulted from a previous send failure; create a new stream."); + } + + var packetNum = Interlocked.Increment(ref _packetNumber) - 1; + + try + { + // Pre-size the dict to avoid rehash during the copy. A separate dict + // per packet is required because the producer may mutate / enqueue the + // dictionary asynchronously, so reuse would race with concurrent writes. + var headers = new Dictionary(_baseHeaders.Count + 1, StringComparer.Ordinal); + foreach (var kvp in _baseHeaders) + { + headers[kvp.Key] = kvp.Value; + } + + headers[HeaderKeys.PacketNumber] = FormatInt64(packetNum); + + // ROM threads directly to SendBytesAsync — no intermediate copy. + // The buffer is read once; after the await returns the caller is free to reuse it. + await _producer.SendBytesAsync(_endpoint, _messageType, buffer, headers, cancellationToken).ConfigureAwait(false); + } + catch (OperationCanceledException) when (cancellationToken.IsCancellationRequested) + { + // User-driven cancellation must NOT latch _faulted. The packet number is + // stranded, but the caller will not call CloseAsync if they cancelled the + // write — they discard the stream. If they DO call CloseAsync afterwards + // (e.g. cleanup in a finally), latching _faulted would force CloseAsync to + // skip the close packet, leaving the receiver's MessageBusReadStream + // perpetually incomplete until the 5-minute eviction sweep. Re-throw so the + // caller learns the write was cancelled. + throw; + } + catch + { + // The reserved packet number is now stranded — there is no safe way for the + // caller to retry without producing a permanent gap, so refuse all further + // writes. The exception still propagates so the caller learns the send failed. + // See learn/operations/cancellation: any throw between Increment and SendBytesAsync, + // including OOM during dict alloc, must trigger the fault flag. + Volatile.Write(ref _faulted, 1); + throw; + } + } + finally + { + Interlocked.Decrement(ref _inFlightWrites); + } + } + + /// + public async Task CloseAsync(CancellationToken cancellationToken = default) + { + cancellationToken.ThrowIfCancellationRequested(); + + // Mark the close as started — WriteAsync will reject once this is 1, regardless + // of whether the close ultimately succeeds. A stream that began closing cannot + // un-close: even on a transient send failure, late writes would overshoot the + // close packet's reserved LastPacketNumber. + Interlocked.CompareExchange(ref _closeStarted, 1, 0); + + // Idempotent fast-path: a prior CloseAsync already shipped the close packet. + if (Volatile.Read(ref _closedFlag) == 1) + { + return; + } + + // Single-flight: only one caller runs the drain+send body at a time. A second + // caller spins until the first either succeeds (_closedFlag=1, return) or fails + // (_closeInProgress released back to 0 with _closedFlag still 0, retry). + var entrySpin = new SpinWait(); + while (Interlocked.CompareExchange(ref _closeInProgress, 1, 0) != 0) + { + cancellationToken.ThrowIfCancellationRequested(); + + if (Volatile.Read(ref _closedFlag) == 1) + { + return; + } + + if (entrySpin.NextSpinWillYield) + { + await Task.Delay(10, cancellationToken).ConfigureAwait(false); + } + else + { + entrySpin.SpinOnce(); + } + } + + try + { + // A faulted stream has a stranded packet number; emitting a close packet would + // declare a LastPacketNumber the reader can never reach. Mark closed and return + // without sending — the caller already received an exception from the failing + // write that set the fault flag. + if (Volatile.Read(ref _faulted) == 1) + { + Volatile.Write(ref _closedFlag, 1); + return; + } + + // Drain in-flight writes before reading _packetNumber. Any WriteAsync that + // passed its _closeStarted gate must complete (success or exception) before + // we assign the close-packet number — otherwise its packet would ship with a + // number beyond LastPacketNumber and the reader would silently drop it. + var deadline = _timeProvider.GetUtcNow().UtcDateTime + _closeDrainTimeout; + var drainSpin = new SpinWait(); + while (Volatile.Read(ref _inFlightWrites) > 0) + { + cancellationToken.ThrowIfCancellationRequested(); + + if (drainSpin.NextSpinWillYield && _timeProvider.GetUtcNow().UtcDateTime >= deadline) + { + throw new TimeoutException( + $"Timed out waiting for {Volatile.Read(ref _inFlightWrites)} in-flight write(s) to drain before closing stream {_sequenceId}."); + } + + if (drainSpin.NextSpinWillYield) + { + await Task.Delay(10, cancellationToken).ConfigureAwait(false); + } + else + { + drainSpin.SpinOnce(); + } + } + + // Re-check the fault flag after the drain. A WriteAsync that started before + // _closeStarted=1 reserves its packet number via Interlocked.Increment before + // the SendBytesAsync await; a failure during that await sets _faulted=1 and + // the outer finally decrements _inFlightWrites. The drain exits cleanly, but + // _packetNumber now reflects a slot whose packet was never sent. Shipping a + // close packet with that LastPacketNumber leaves the reader unable to ever + // satisfy IsComplete (the missing slot is unreachable). Treat post-drain fault + // the same as pre-drain fault: mark closed and return without sending. + if (Volatile.Read(ref _faulted) == 1) + { + Volatile.Write(ref _closedFlag, 1); + return; + } + + // _packetNumber was post-incremented on each WriteAsync, so after N data + // packets (indices 0..N-1) its value is N. The close packet reuses that value + // as its own index, and LastPacketNumber equals the count. The reader's + // IsComplete loop checks 0..LastPacketNumber inclusive so the empty close + // packet fills that final slot. Changing the close-packet payload in the + // future would break this invariant — see MessageBusReadStream.Read(). + var packetNum = Interlocked.Read(ref _packetNumber); + + var headers = new Dictionary(_baseHeaders.Count + 2, StringComparer.Ordinal); + foreach (var kvp in _baseHeaders) + { + headers[kvp.Key] = kvp.Value; + } + + var packetNumString = FormatInt64(packetNum); + headers[HeaderKeys.PacketNumber] = packetNumString; + headers[HeaderKeys.LastPacketNumber] = packetNumString; + + // Send the close packet. If this throws, _closedFlag stays 0 (the finally + // block releases _closeInProgress) so a retry can re-enter and try again. + await _producer.SendBytesAsync(_endpoint, _messageType, ReadOnlyMemory.Empty, headers, cancellationToken).ConfigureAwait(false); + + // Success: durable close. WriteAsync's _closeStarted gate already locks out + // late writes; setting _closedFlag now lets idempotent CloseAsync callers + // short-circuit without re-entering the in-progress gate. + Volatile.Write(ref _closedFlag, 1); + } + finally + { + // Release the in-progress gate. On failure this lets a retry re-enter; on + // success _closedFlag=1 already short-circuits new entries. + Volatile.Write(ref _closeInProgress, 0); + } + } + + /// + public async ValueTask DisposeAsync() + { + // CloseAsync with no token leaves the single-flight spin gate running indefinitely + // if the in-flight CloseAsync holder is wedged. Apply the same _closeDrainTimeout + // used by the drain itself so the spin cannot park the disposing thread forever. + using var cts = new CancellationTokenSource(_closeDrainTimeout); + try + { + await CloseAsync(cts.Token).ConfigureAwait(false); + } + catch (Exception ex) + { + // DisposeAsync is best-effort: surfacing exceptions through `await using` would + // defeat the documented contract. Swallow every failure mode: + // - OperationCanceledException (gate-holder wedged, our budget elapsed) + // - TimeoutException (drain-spin timed out) + // - transport exceptions on the close-packet send (broker unreachable, + // channel already closed, etc. — the broker has no state we need to + // release, and the receiver's eviction sweep reclaims the stream after + // StreamTimeout) + System.Diagnostics.Activity.Current?.AddEvent( + new System.Diagnostics.ActivityEvent( + "MessageBusWriteStream.DisposeAsync.ClosePacketFailed", + tags: new System.Diagnostics.ActivityTagsCollection + { + { "exception.type", ex.GetType().FullName }, + { "exception.message", ex.Message }, + { "sequence_id", _sequenceId }, + })); + } + } + + private static string FormatGuid(Guid value) + { + Span buffer = stackalloc char[36]; + value.TryFormat(buffer, out var charsWritten); + return new string(buffer[..charsWritten]); + } + + private static string FormatInt64(long value) + { + Span buffer = stackalloc char[20]; + value.TryFormat(buffer, out var charsWritten); + return new string(buffer[..charsWritten]); + } +} diff --git a/src/ServiceConnect/Services/MessageDispatcher.cs b/src/ServiceConnect/Services/MessageDispatcher.cs new file mode 100644 index 000000000..54e1897eb --- /dev/null +++ b/src/ServiceConnect/Services/MessageDispatcher.cs @@ -0,0 +1,478 @@ +using System.Text.Json; +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Services.Processors; + +namespace ServiceConnect.Services; + +/// +/// Deserializes incoming envelopes and routes them through filters, processors, and middleware. +/// A fresh DI scope is created for each dispatch and flowed through +/// so filters, middleware, and handlers share the same per-message container scope. +/// +/// Filters (before- and after-consuming) run on every dispatch, including pre-deserialization +/// processors such as and . +/// only wraps the post-deserialization dispatch +/// path because its delegate signature requires a non-null object message; pre-deserialization +/// processors handle raw bytes without a resolved message instance and therefore bypass middleware by design. +/// +/// +/// +/// Creates a dispatcher for incoming broker messages. +/// +internal sealed class MessageDispatcher( + IMessageSerializer serializer, + IFilterPipeline filterPipeline, + IList processors, + ILogger logger, + IBusConfiguration config, + IPipelineConfiguration pipelineConfig, + IServiceScopeFactory scopeFactory, + IConsumeScopeAccessor scopeAccessor, + IMessageTypeRegistry typeRegistry, + IConsumeContextAccessor? consumeContextAccessor = null) : IMessageDispatcher +{ + private readonly IMessageSerializer _serializer = serializer ?? throw new ArgumentNullException(nameof(serializer)); + private readonly IFilterPipeline _filterPipeline = filterPipeline ?? throw new ArgumentNullException(nameof(filterPipeline)); + private readonly IList _processors = processors ?? throw new ArgumentNullException(nameof(processors)); + private readonly ILogger _logger = logger ?? throw new ArgumentNullException(nameof(logger)); + private readonly IBusConfiguration _config = config ?? throw new ArgumentNullException(nameof(config)); + private readonly IPipelineConfiguration _pipelineConfig = pipelineConfig ?? throw new ArgumentNullException(nameof(pipelineConfig)); + private readonly IServiceScopeFactory _scopeFactory = scopeFactory ?? throw new ArgumentNullException(nameof(scopeFactory)); + private readonly IConsumeScopeAccessor _scopeAccessor = scopeAccessor ?? throw new ArgumentNullException(nameof(scopeAccessor)); + private readonly IMessageTypeRegistry _typeRegistry = typeRegistry ?? throw new ArgumentNullException(nameof(typeRegistry)); + // Optional so test rigs that construct the dispatcher directly without DI keep working — + // a null accessor means middleware that resolves the inbound headers via the ambient + // IConsumeContextAccessor sees null (the pre-existing behaviour). In production wiring, + // ServiceCollectionExtensions registers IConsumeContextAccessor as a singleton and DI + // threads it in here automatically. + private readonly IConsumeContextAccessor? _consumeContextAccessor = consumeContextAccessor; + + /// + public async Task DispatchAsync( + ReadOnlyMemory messageBytes, + string messageType, + IReadOnlyDictionary headers, + CancellationToken cancellationToken = default) + { + // CreateAsyncScope so user-supplied IMessageHandler / IFilter / IMessageProcessingMiddleware + // implementations that are IAsyncDisposable-only (no IDisposable) are honoured. A sync scope + // dispose against an IAsyncDisposable-only registered service throws + // InvalidOperationException("AsyncDisposableServiceNotSupported") under MS.DI. Explicit + // try/finally + DisposeAsync().ConfigureAwait(false) so the analyzer can see the await. + var scope = _scopeFactory.CreateAsyncScope(); + try + { + using var _ = _scopeAccessor.Push(scope.ServiceProvider); + + Envelope? envelope = null; + IDisposable? contextScope = null; + var beforeFiltersRan = false; + try + { + // Downstream pipeline (IMessageProcessor, MessageProcessingDelegate, Envelope.Headers) + // requires a mutable IDictionary for middleware mutation. Fast-path + // succeeds when the runtime type is Dictionary<,> (the expected hot path); the fallback + // copy handles non-Dictionary<,> runtime types (e.g. ReadOnlyDictionary<,>). + var mutableHeaders = headers as IDictionary + ?? new Dictionary(headers, StringComparer.Ordinal); + + envelope = new Envelope { Headers = mutableHeaders, Body = messageBytes }; + + // Push the inbound-context accessor BEFORE filters/middleware run so any outbound + // call made from a middleware (e.g. an auto-forward IMessageProcessingMiddleware + // that invokes Bus.RouteAsync or Bus.SendAsync) reads the inbound hop counter via + // IConsumeContextAccessor.CurrentHeaders. + // Without this, middleware sees CurrentHeaders == null and the framework stamps + // RoutingSlipHopsCompleted=1 regardless of the inbound hop count — defeating + // MaxRoutingSlipHops as the cross-service amplification defence. + // + // The Dictionary fast-path covers the production transport (Bus constructs as + // Dictionary<,>); third-party transports passing a non-Dictionary IDictionary + // get a defensive shallow copy snapshot so the IReadOnlyDictionary contract is + // honoured. The HandlerProcessor / ProcessManagerProcessor push later with the + // pooled context's typed headers, which nests cleanly. + if (_consumeContextAccessor is not null) + { + var headersForContext = mutableHeaders as IReadOnlyDictionary + ?? new Dictionary(mutableHeaders, StringComparer.Ordinal); + contextScope = _consumeContextAccessor.Push(headersForContext); + } + + // Before-consuming filters run first so they gate every dispatch path — + // including pre-deserialization processors like StreamProcessor. The + // beforeFiltersRan flag must reflect whether THIS call completed so the + // outer finally only invokes after-filters when before-filters were seen. + var beforeAction = await _filterPipeline.ExecuteBeforeConsumingFiltersAsync(envelope, cancellationToken).ConfigureAwait(false); + beforeFiltersRan = true; + if (beforeAction == FilterAction.Stop) + { + return new ConsumeEventResult { Success = true }; + } + + return await RunDispatchPipelineAsync(messageBytes, messageType, headers, mutableHeaders, envelope, scope.ServiceProvider, cancellationToken).ConfigureAwait(false); + } + catch (OperationCanceledException) when (cancellationToken.IsCancellationRequested) + { + // Cooperative shutdown — propagate so the outer finally leaves the message unacked + // for broker redelivery on next start. Not an application error. + throw; + } + catch (Exception ex) + { + return await HandleDispatchErrorAsync(ex, messageType, cancellationToken).ConfigureAwait(false); + } + finally + { + if (beforeFiltersRan && envelope != null) + { + try + { + await _filterPipeline.ExecuteAfterConsumingFiltersAsync(envelope, cancellationToken).ConfigureAwait(false); + } + catch (Exception afterEx) + { + _logger.LogWarning(afterEx, "AfterConsumingFilters threw while finalising dispatch of {MessageType}", messageType); + } + } + // Pop the inbound-context AsyncLocal AFTER AfterConsumingFilters so those filters + // still observe the headers context, but BEFORE the DI scope disposes so any + // service depending on the accessor doesn't observe a stale push from this + // dispatch in the next one. + contextScope?.Dispose(); + } + } + finally + { + await scope.DisposeAsync().ConfigureAwait(false); + } + } + + /// + /// Executes the dispatch pipeline for one inbound delivery: pre-deserialization processors, + /// type resolution, reply-path dispatch (when applicable), main deserialise + middleware chain + /// + processors, and on-consumed-successfully filters. Returns the + /// the caller surfaces. The before-consuming filters and + /// the after-consuming filters / AsyncLocal pop are in the caller's scope so the + /// beforeFiltersRan flag stays correctly latched and after-filters fire on the exception + /// paths the caller handles too. + /// + private async Task RunDispatchPipelineAsync( + ReadOnlyMemory messageBytes, + string messageType, + IReadOnlyDictionary headers, + IDictionary mutableHeaders, + Envelope envelope, + IServiceProvider scopedProvider, + CancellationToken cancellationToken) + { + var (replyProcessor, preDeserHandled) = await RunPreDeserializationProcessorsAsync(messageBytes, mutableHeaders, envelope, cancellationToken).ConfigureAwait(false); + if (preDeserHandled) + { + // Mirror the reply branch and the handler-success branch: a pre-deserialisation + // processor (StreamProcessor accepting a packet frame) that returns Handled is + // a successful consume. User filters built on the OnConsumedSuccessfully stage + // (dedup-key recording, audit, outbox commit) must observe stream packets here. + await _filterPipeline.ExecuteOnConsumedSuccessfullyFiltersAsync(envelope, cancellationToken).ConfigureAwait(false); + return new ConsumeEventResult { Success = true }; + } + + var hasResponseMessageId = headers.ContainsKey(HeaderKeys.ResponseMessageId); + var typeResolution = TryResolveMessageType(messageType, headers, hasResponseMessageId); + if (typeResolution.ShouldReturnNotHandled) + { + return new ConsumeEventResult { Success = true, NotHandled = true }; + } + // Type is non-null whenever ShouldReturnNotHandled is false (helper contract). + var type = typeResolution.Type!; + + if (hasResponseMessageId) + { + return await DispatchReplyAsync(replyProcessor, messageBytes, type, mutableHeaders, envelope, headers, cancellationToken).ConfigureAwait(false); + } + + var message = _serializer.Deserialize(messageBytes, type); + + // Build the middleware chain per dispatch from the scoped provider so scoped/transient + // middleware lifetimes are honoured — a cached chain would pin the first instance for + // the lifetime of the bus. + var chain = BuildProcessingChain(scopedProvider); + var result = await chain(messageBytes, type, message, mutableHeaders, envelope, cancellationToken).ConfigureAwait(false); + + if (result.Success && !result.NotHandled) + { + await RunOnConsumedSuccessfullyAsync(envelope, messageType, cancellationToken).ConfigureAwait(false); + } + + return result; + } + + // Handles a reply-shaped delivery (ResponseMessageId header present). Two sub-cases: + // - replyProcessor != null: dispatch through the reply processor. Both Handled (matched a + // pending request) and not-Handled (untracked correlation — likely timed out or duplicate) + // are treated as successful consumes; the dispatcher acks either way so the + // OnConsumedSuccessfully filter stage must fire on both so audit/telemetry filters count + // reply messages. + // - replyProcessor == null: misconfiguration. A reply arrived but no IRequestReplyManager + // is registered; running the regular handler against a reply payload would surprise + // handlers expecting a self-contained message. Log at Warning and ack-and-drop. + private async Task DispatchReplyAsync( + ReplyProcessor? replyProcessor, + ReadOnlyMemory messageBytes, + Type type, + IDictionary mutableHeaders, + Envelope envelope, + IReadOnlyDictionary headers, + CancellationToken cancellationToken) + { + if (replyProcessor == null) + { + _logger.LogWarning( + "Reply received (ResponseMessageId={ResponseMessageId}) but no ReplyProcessor / IRequestReplyManager is registered on this bus. " + + "The reply cannot be correlated and the regular handler must NOT run against a reply payload. " + + "Acking and dropping.", + HeaderDecoder.Decode(headers[HeaderKeys.ResponseMessageId]) ?? ""); + return new ConsumeEventResult { Success = true }; + } + + var replyResult = await replyProcessor.ProcessAsync(messageBytes, type, null, mutableHeaders, envelope, cancellationToken).ConfigureAwait(false); + await _filterPipeline.ExecuteOnConsumedSuccessfullyFiltersAsync(envelope, cancellationToken).ConfigureAwait(false); + + if (replyResult == ProcessResult.Handled) + { + return new ConsumeEventResult { Success = true }; + } + + _logger.LogDebug( + "Discarding reply for untracked correlation '{CorrelationId}' (likely timed out or duplicate)", + HeaderDecoder.Decode(headers[HeaderKeys.ResponseMessageId]) ?? ""); + return new ConsumeEventResult { Success = true }; + } + + // Runs the OnConsumedSuccessfully filter stage after a successful handler dispatch. A throw + // here flips the dispatch result from success to fail and the consumer host retries — which + // re-runs the already-successful handler and DUPLICATES its side effects. The discriminating + // Error log makes that signal visible so operators can tell a post-handler-filter-throw + // apart from a handler-throw when triaging dedup failures. Cooperative-shutdown OCE is + // allowed to propagate without the side-effect-duplication note. + private async Task RunOnConsumedSuccessfullyAsync(Envelope envelope, string messageType, CancellationToken cancellationToken) + { + try + { + await _filterPipeline.ExecuteOnConsumedSuccessfullyFiltersAsync(envelope, cancellationToken).ConfigureAwait(false); + } + catch (Exception successFilterEx) when (successFilterEx is not OperationCanceledException || !cancellationToken.IsCancellationRequested) + { + _logger.LogError(successFilterEx, + "OnConsumedSuccessfully filter threw after handler success for message of type {MessageType}; retry will re-run the handler and duplicate its side effects.", + messageType); + throw; + } + } + + /// + /// Classifies a dispatch exception as terminal (permanently invalid payload) vs transient, + /// logs at the appropriate severity, invokes the user-supplied exception handler, and + /// produces the the dispatcher returns. The OCE re-throw + /// case is handled at the call site — it's not an "error" in this sense. + /// + private async Task HandleDispatchErrorAsync( + Exception ex, + string messageType, + CancellationToken cancellationToken) + { + if (ex is JsonException or NotSupportedException or Interfaces.Exceptions.SerializationException) + { + // Permanently malformed payload — JsonException covers wire-format faults + // (truncated bytes, schema mismatch, max-depth exceeded), NotSupportedException + // surfaces when an STJ converter rejects the value, and SerializationException + // is the serializer's wrapper around JsonException. Retrying produces the + // identical failure; route as terminal so the message goes straight to the error + // exchange and the retry budget isn't burned on a poison delivery. + _logger.LogError(ex, + "Permanently invalid payload for message of type {MessageType}; routing as terminal failure (no retry).", + messageType); + await InvokeExceptionHandlerAsync(ex, messageType, cancellationToken).ConfigureAwait(false); + return new ConsumeEventResult { Success = false, Exception = ex, TerminalFailure = true }; + } + + _logger.LogError(ex, "Error dispatching message of type {MessageType}", messageType); + await InvokeExceptionHandlerAsync(ex, messageType, cancellationToken).ConfigureAwait(false); + return new ConsumeEventResult { Success = false, Exception = ex }; + } + + // Invokes the optional ExceptionHandler callback and swallows + logs any throw it produces + // at Error level. ExceptionHandler is an opt-in user-configured notification hook; a crash + // inside it is a real failure of an explicitly-installed surface and operators must see it. + // The dispatcher continues regardless — the original dispatch exception is already attached + // to the returned ConsumeEventResult and drives the retry/error-queue path; the hook crash + // is a secondary signal that must not block message processing. + private async Task InvokeExceptionHandlerAsync(Exception ex, string messageType, CancellationToken cancellationToken) + { + if (_config.ExceptionHandler is not { } handler) + { + return; + } + try + { + await handler(ex, cancellationToken).ConfigureAwait(false); + } + catch (Exception handlerEx) + { + _logger.LogError(handlerEx, "ExceptionHandler threw while handling dispatch error for message of type {MessageType}", messageType); + } + } + + /// + /// Outcome of resolving the inbound delivery's message-type. When is non-null + /// the caller dispatches against it (it may be typeof(Message) on the reply-path fallback); + /// when is true the caller returns a Success+NotHandled + /// result immediately (terminal — no retry, no dispatch). + /// + private readonly record struct MessageTypeResolution(Type? Type, bool ShouldReturnNotHandled); + + /// + /// Resolves the type to dispatch against from the inbound delivery's + /// argument and the FullTypeName / TypeName headers, falling back to typeof(Message) for + /// the reply path ( == true) when the registry doesn't + /// know the type. + /// + /// + /// Unregistered + not-a-reply is a terminal not-handled: retrying never resolves it, so the caller + /// routes to dead-letter (when configured) or ack-and-drops rather than burning the full retry + /// budget through Success=false → nack/requeue. + /// + private MessageTypeResolution TryResolveMessageType( + string messageType, + IReadOnlyDictionary headers, + bool hasResponseMessageId) + { + string? primaryCandidate = string.IsNullOrWhiteSpace(messageType) ? null : messageType; + string? fullTypeNameCandidate = headers.TryGetValue(HeaderKeys.FullTypeName, out var fullTypeNameRaw) + ? HeaderDecoder.Decode(fullTypeNameRaw) : null; + string? typeNameCandidate = headers.TryGetValue(HeaderKeys.TypeName, out var typeNameRaw) + ? HeaderDecoder.Decode(typeNameRaw) : null; + + if (primaryCandidate is null && fullTypeNameCandidate is null && typeNameCandidate is null) + { + throw new InvalidOperationException( + "Message is missing type information: messageType parameter is empty and neither FullTypeName nor TypeName header is present."); + } + + var fullTypeName = primaryCandidate ?? fullTypeNameCandidate ?? typeNameCandidate!; + + Type? type = null; + bool typeResolvedFromRegistry = + (primaryCandidate is not null && _typeRegistry.TryResolve(primaryCandidate, out type)) + || (fullTypeNameCandidate is not null && _typeRegistry.TryResolve(fullTypeNameCandidate, out type)) + || (typeNameCandidate is not null && _typeRegistry.TryResolve(typeNameCandidate, out type)); + + if (typeResolvedFromRegistry) + { + return new MessageTypeResolution(type, ShouldReturnNotHandled: false); + } + + if (hasResponseMessageId) + { + // Reply with unregistered payload type: the dispatcher can still route the reply via + // DispatchReplyAsync. The base Message type is the conservative deserialise target; + // the matched pending request's ReplyType supplies the real shape downstream. + return new MessageTypeResolution(typeof(Message), ShouldReturnNotHandled: false); + } + + _logger.LogWarning("Unregistered message type '{TypeName}'. Routing as not-handled.", fullTypeName); + return new MessageTypeResolution(Type: null, ShouldReturnNotHandled: true); + } + + // Iterates all processors. Pre-deserialization processors run immediately; ReplyProcessor + // is pulled out and returned as a typed reference for the dispatch routing logic. Returns + // (replyProcessor, true) when a pre-deserialization processor signals Handled so the caller + // can short-circuit without entering the rest of the dispatch path. + private async Task<(ReplyProcessor? ReplyProcessor, bool Handled)> RunPreDeserializationProcessorsAsync( + ReadOnlyMemory messageBytes, IDictionary headers, Envelope envelope, CancellationToken cancellationToken) + { + ReplyProcessor? replyProcessor = null; + foreach (var proc in _processors) + { + // Honour cooperative shutdown between processors. A processor that completes + // synchronously (no internal await) would otherwise not observe cancellation + // until the next async point — on a busy broker that could be the next message. + cancellationToken.ThrowIfCancellationRequested(); + + if (proc is ReplyProcessor typedReplyProcessor) + { + replyProcessor = typedReplyProcessor; + continue; + } + + if (!proc.RunBeforeDeserialization) + { + continue; + } + + var preResult = await proc.ProcessAsync(messageBytes, typeof(Message), null, headers, envelope, cancellationToken).ConfigureAwait(false); + if (preResult == ProcessResult.Handled) + { + return (replyProcessor, true); + } + } + + return (replyProcessor, false); + } + + private async Task RunProcessors( + ReadOnlyMemory messageBytes, + Type messageType, + object message, + IDictionary headers, + Envelope envelope, + CancellationToken cancellationToken) + { + foreach (var proc in _processors) + { + // Mirror the pre-deserialization loop: shutdown cancellation must propagate + // between processors even when a processor completes synchronously. + cancellationToken.ThrowIfCancellationRequested(); + + if (proc.RunBeforeDeserialization) + { + continue; + } + + var result = await proc.ProcessAsync(messageBytes, messageType, message, headers, envelope, cancellationToken).ConfigureAwait(false); + if (result == ProcessResult.Handled) + { + return new ConsumeEventResult { Success = true }; + } + } + + // Debug, not Warning: the unregistered-type path already logs at Warning earlier in + // DispatchAsync. Reaching here means the type IS registered but no processor (handler, + // saga, aggregator, stream) claimed it — on a topic-exchange topology where the bus + // binds an exchange it doesn't fully service, that's the steady state for the unclaimed + // subset, not an operator-actionable signal. + _logger.LogDebug("No processor handled message of type {MessageType}", messageType.FullName); + return new ConsumeEventResult { Success = true, NotHandled = true }; + } + + private MessageProcessingDelegate BuildProcessingChain(IServiceProvider scopedProvider) + { + var middlewareTypes = _pipelineConfig.MessageProcessingMiddleware; + if (middlewareTypes.Count == 0) + { + return RunProcessors; + } + + MessageProcessingDelegate chain = RunProcessors; + for (int i = middlewareTypes.Count - 1; i >= 0; i--) + { + var mw = (IMessageProcessingMiddleware)scopedProvider.GetRequiredService(middlewareTypes[i]); + var next = chain; + chain = (messageBytes, messageType, message, headers, envelope, cancellationToken) => + mw.ProcessAsync(messageBytes, messageType, message, headers, envelope, next, cancellationToken); + } + return chain; + } +} diff --git a/src/ServiceConnect/Services/MessageTypeExchangeName.cs b/src/ServiceConnect/Services/MessageTypeExchangeName.cs new file mode 100644 index 000000000..05bedb79e --- /dev/null +++ b/src/ServiceConnect/Services/MessageTypeExchangeName.cs @@ -0,0 +1,41 @@ +namespace ServiceConnect.Services; + +/// +/// Derives transport-safe exchange and binding names from message-type metadata. +/// Producers and consumers must agree on this mapping so binding names match declared +/// exchanges — sharing the helper keeps them in lock-step. +/// +/// +/// This is part of the public API surface because adapter packages (e.g. +/// ServiceConnect.Client.RabbitMQ) need to derive the same name as the core bus. +/// The mapping is the C# master wire convention Type.FullName.Replace(".", ""), +/// shared with the deployed .NET master services and the Node.js implementation so all +/// three interoperate on the same exchanges. The algorithm is frozen for wire compatibility. +/// +public static class MessageTypeExchangeName +{ + /// + /// Computes the deterministic exchange / binding name for the given message type: + /// its with the namespace dots removed. + /// + /// The CLR type whose name is being mapped. Must have a non-null . + /// + /// The full type name with every . removed, e.g. MyApp.Messages.OrderPlaced + /// becomes MyAppMessagesOrderPlaced. + /// + /// is . + /// has no . + // Matches master's `type.FullName.Replace(".", string.Empty)` exactly. The mapping is not + // injective ("A.BC" and "AB.C" both flatten to "ABC"), but master is the canonical wire + // format and accepts that, so the C# and Node implementations align to it rather than + // disambiguating with a hash suffix that master and Node do not share. + public static string From(Type type) + { + ArgumentNullException.ThrowIfNull(type); + + var full = type.FullName + ?? throw new ArgumentException($"Type '{type}' has no FullName.", nameof(type)); + + return full.Replace(".", string.Empty); + } +} diff --git a/src/ServiceConnect/Services/MessageTypeRegistry.cs b/src/ServiceConnect/Services/MessageTypeRegistry.cs new file mode 100644 index 000000000..936f824eb --- /dev/null +++ b/src/ServiceConnect/Services/MessageTypeRegistry.cs @@ -0,0 +1,153 @@ +using System.Collections.Concurrent; +using System.Collections.Frozen; +using System.Diagnostics.CodeAnalysis; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Services; + +/// +/// Stores known message CLR types by their full and assembly-qualified names for dispatch-time lookup. +/// +internal sealed class MessageTypeRegistry : IMessageTypeRegistry +{ + private readonly ConcurrentDictionary _registeredTypes = new(StringComparer.Ordinal); + private FrozenDictionary? _types; + // Monotonic version bumped on every Register. TryResolve captures the version before + // snapshotting _registeredTypes; if a concurrent Register advances the version between + // the snapshot and the CAS, the snapshot may be stale and must not be cached. + private long _version; + + // TEST HOOK — fired between the snapshot of _registeredTypes and the CAS that publishes + // it as the cached _types. Allows tests to deterministically simulate a racing Register + // inside the snapshot-to-CAS window. Null in production. + internal Action? _testHookBeforeCas; + + /// + public bool TryResolve(string typeName, [MaybeNullWhen(false)] out Type type) + { + while (true) + { + var cached = Volatile.Read(ref _types); + if (cached != null) + { + return cached.TryGetValue(typeName, out type); + } + + var v0 = Volatile.Read(ref _version); + var snapshot = _registeredTypes.ToFrozenDictionary(); + + _testHookBeforeCas?.Invoke(); + + if (Interlocked.CompareExchange(ref _types, snapshot, null) == null) + { + // Published. If a concurrent Register advanced the version after v0, the + // snapshot we just cached may have missed that Register's addition — invalidate + // so the next lookup takes a fresh snapshot. A Register that runs purely after + // our CAS will itself Volatile.Write _types = null and we don't need to do it. + if (Volatile.Read(ref _version) != v0) + { + Volatile.Write(ref _types, null); + } + + return snapshot.TryGetValue(typeName, out type); + } + // Lost the CAS race; loop and read the winning cache. + } + } + + /// + public void Register(Type type) + { + ArgumentNullException.ThrowIfNull(type); + + // Two types sharing a FullName (or, less commonly, an AssemblyQualifiedName) + // must not silently overwrite each other — dispatch would then resolve to + // whichever was registered last, which is load-order dependent. Reject the + // collision with a clear signal. Re-registering the exact same Type is + // idempotent. + // + // Pre-validate BOTH keys before committing either — without this, an AQN-add + // success followed by a FullName-collision throw would leave the AQN entry + // committed but the version unbumped and the cache un-invalidated, so a stale + // cached snapshot would miss the AQN entry and TryResolve(AQN) would report + // the type as unregistered despite the dict containing it. The pre-check costs + // two ContainsKey lookups; this method runs once per type at startup so the + // throughput is irrelevant. + if (type.AssemblyQualifiedName is { } aqn + && _registeredTypes.TryGetValue(aqn, out var existingByAqn) + && existingByAqn != type) + { + throw new InvalidOperationException( + $"Message type registration collision on key '{aqn}': already registered as '{existingByAqn.AssemblyQualifiedName}', cannot re-register as '{type.AssemblyQualifiedName}'."); + } + if (type.FullName is { } fullName + && _registeredTypes.TryGetValue(fullName, out var existingByFullName) + && existingByFullName != type) + { + throw new InvalidOperationException( + $"Message type registration collision on key '{fullName}': already registered as '{existingByFullName.AssemblyQualifiedName}', cannot re-register as '{type.AssemblyQualifiedName}'."); + } + + // Commit both keys with rollback on FullName failure. The pre-validate above narrows + // the race window but is not atomic — a concurrent Register can land a colliding + // FullName between our pre-check and the AddOrReject below. Without rollback, the + // AQN commit succeeds while FullName throws, leaving the registry half-populated + // and the cache un-invalidated (so a stale snapshot misses the committed AQN entry). + var aqnCommitted = false; + try + { + if (type.AssemblyQualifiedName is not null) + { + AddOrReject(type.AssemblyQualifiedName, type); + aqnCommitted = true; + } + + if (type.FullName is not null) + { + AddOrReject(type.FullName, type); + } + } + catch + { + // Rollback the AQN entry if we committed it before the FullName collision. Use + // KVP-based TryRemove so a concurrent re-Register of the SAME type (idempotent — + // AddOrReject is a no-op when existing == type) doesn't get its entry removed + // by our rollback. Best-effort: if rollback fails (extremely unlikely under + // ConcurrentDictionary), the registry remains in the same partial state as + // before this fix; we re-throw the original collision either way. + if (aqnCommitted && type.AssemblyQualifiedName is not null) + { + _registeredTypes.TryRemove(new KeyValuePair(type.AssemblyQualifiedName, type)); + } + throw; + } + + // Bump version first so a racing TryResolve that has already taken its snapshot + // observes the advance and skips caching. Only then clear the cached snapshot. + Interlocked.Increment(ref _version); + Volatile.Write(ref _types, null); + } + + /// + public IReadOnlyCollection AllRegisteredTypeNames() + { + // _registeredTypes.Keys snapshots under ConcurrentDictionary's enumerator semantics, + // which is point-in-time consistent. Materialise to a list so the returned collection + // is fully detached from later Register calls — callers that pass this to a Mongo + // $in filter rely on a stable count. + return [.. _registeredTypes.Keys]; + } + + private void AddOrReject(string key, Type type) + { + var existing = _registeredTypes.GetOrAdd(key, type); + if (existing != type) + { + // Defence-in-depth: a concurrent Register for a colliding type that lost the + // pre-validation race ends up here. Pre-validation closes the common path; this + // throw covers the cross-thread race window. + throw new InvalidOperationException( + $"Message type registration collision on key '{key}': already registered as '{existing.AssemblyQualifiedName}', cannot re-register as '{type.AssemblyQualifiedName}'."); + } + } +} diff --git a/src/ServiceConnect/Services/ProcessManagerTimeoutService.cs b/src/ServiceConnect/Services/ProcessManagerTimeoutService.cs new file mode 100644 index 000000000..aac222d7a --- /dev/null +++ b/src/ServiceConnect/Services/ProcessManagerTimeoutService.cs @@ -0,0 +1,360 @@ +using Microsoft.Extensions.Hosting; +using Microsoft.Extensions.Logging; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Interfaces.Options; + +namespace ServiceConnect.Services; + +/// +/// Hosted service that polls timeout storage and dispatches due process-manager timeout messages. +/// +internal sealed class ProcessManagerTimeoutService( + IBusConfiguration config, + Lazy bus, + ITimeoutStore? finder, + ILogger logger, + TimeProvider? timeProvider = null) : IHostedService, IAsyncDisposable +{ + private static readonly TimeSpan DefaultPollInterval = TimeSpan.FromSeconds(30); + // Safety margin — if the remaining lease is less than this, skip dispatch and let the + // next poll reclaim the timeout rather than risk a duplicate send after the lease expires. + private static readonly TimeSpan LeaseSafetyMargin = TimeSpan.FromSeconds(2); + + // Cancellation source independent of the IHostedService startup token. StartAsync's + // cancellationToken parameter is for cancelling host startup, not for cancelling the + // long-running poll loop afterwards. Mirror the standard BackgroundService pattern: + // the startup CT is observed once; long-running work uses _stoppingCts which is + // cancelled by StopAsync. + private CancellationTokenSource? _stoppingCts; + private Task? _pollingTask; + private readonly Lazy _bus = bus ?? throw new ArgumentNullException(nameof(bus)); + private readonly ITimeoutStore? _finder = finder; + private readonly TimeProvider _timeProvider = timeProvider ?? TimeProvider.System; + + /// + /// Starts timeout polling when process-manager timeouts are enabled and a timeout store is registered. + /// + /// A token used to cancel host startup. + public Task StartAsync(CancellationToken cancellationToken) + { + if (!config.EnableProcessManagerTimeouts) + { + logger.LogDebug("Process manager timeouts are disabled."); + return Task.CompletedTask; + } + + if (_finder == null) + { + logger.LogWarning("EnableProcessManagerTimeouts is true but no ITimeoutStore registered."); + return Task.CompletedTask; + } + + cancellationToken.ThrowIfCancellationRequested(); + + var configured = config.ProcessManagerTimeoutPollInterval; + var interval = configured <= TimeSpan.Zero ? DefaultPollInterval : configured; + if (configured <= TimeSpan.Zero) + { + logger.LogWarning("ProcessManagerTimeoutPollInterval {Configured} is not positive; falling back to {Fallback}.", configured, DefaultPollInterval); + } + + _stoppingCts = new CancellationTokenSource(); + _pollingTask = PollLoop(interval, _stoppingCts.Token); + logger.LogInformation("Process manager timeout polling started."); + return Task.CompletedTask; + } + + /// + /// Stops timeout polling and waits for the poll loop to finish. + /// + /// A token used to cancel host shutdown. + public async Task StopAsync(CancellationToken cancellationToken) + { + var cts = Interlocked.Exchange(ref _stoppingCts, null); + if (cts == null) + { + return; // never started or already stopped + } + + try { await cts.CancelAsync().ConfigureAwait(false); } + catch (ObjectDisposedException) { } + + var pollingCompleted = false; + if (_pollingTask != null) + { +#pragma warning disable VSTHRD003 // _pollingTask was started by StartAsync on this instance. + try + { + await _pollingTask.WaitAsync(cancellationToken).ConfigureAwait(false); + pollingCompleted = true; + } + catch (OperationCanceledException) + { + // Host grace token fired before the poll loop finished draining. The poll + // loop is still running and may read cts.Token on its next iteration — + // disposing the CTS now would surface as ObjectDisposedException out of the + // PeriodicTimer's WaitForNextTickAsync and bubble through PollLoop's broad + // catch as "poll loop terminated unexpectedly". Skip the Dispose; the + // CancellationTokenSource holds no unmanaged state beyond the lazy WaitHandle + // and the poll task carries its own reference so the source is GC-reclaimable + // once the poll task completes. + } +#pragma warning restore VSTHRD003 + } + + if (pollingCompleted) + { + cts.Dispose(); + _pollingTask = null; + } + else + { + // Attach a fault observer so any post-grace exception from the abandoned + // polling task is observed rather than firing TaskScheduler.UnobservedTaskException. + _ = _pollingTask?.ContinueWith( + static t => _ = t.Exception, + CancellationToken.None, + TaskContinuationOptions.OnlyOnFaulted | TaskContinuationOptions.ExecuteSynchronously, + TaskScheduler.Default); + } + } + + internal async Task PollOnceAsync(CancellationToken cancellationToken = default) + { + if (_finder == null) + { + return 0; + } + + try + { + var batch = await _finder.GetTimeoutsBatchAsync(cancellationToken: cancellationToken).ConfigureAwait(false); + if (batch.DueTimeouts == null || batch.DueTimeouts.Count == 0) + { + return 0; + } + + // sentCount drives the catch-up loop: it increments on every successful + // SendAsync regardless of whether the subsequent Remove succeeded. Decoupling + // it from the remove path means a transiently-failing store does not starve + // the catch-up loop — sends still fire at full batch rate while the row stays + // in the store for the next poll to re-attempt removal. + // + // Skips (margin gate and post-send lease-expiry) must NOT count — otherwise + // the catch-up loop keeps re-polling against a backlog of skip-eligible rows + // whose lease another worker has already re-claimed. + var sentCount = 0; + foreach (var timeout in batch.DueTimeouts) + { + try + { + // Skip dispatch if the remaining lease is below the safety margin — + // another poller is about to reclaim this row and a duplicate send + // here would cause at-least-twice delivery. + if (timeout.LockExpiresAt.HasValue && + timeout.LockExpiresAt.Value - _timeProvider.GetUtcNow() < LeaseSafetyMargin) + { + logger.LogDebug( + "Skipping timeout {TimeoutId}; lease expires at {Expires} (margin {Margin})", + timeout.Id, timeout.LockExpiresAt.Value, LeaseSafetyMargin); + continue; + } + + logger.LogDebug("Dispatching timeout {TimeoutId} for PM {ProcessManagerId}", + timeout.Id, timeout.ProcessManagerId); + + if (!string.IsNullOrEmpty(timeout.Destination)) + { + var timeoutMessage = new TimeoutMessage(timeout.ProcessManagerId); + await _bus.Value.SendAsync(timeoutMessage, new SendOptions + { + EndPoint = timeout.Destination, + Headers = TimeoutHeaderPersistence.BuildOutgoingHeaders(timeout.Headers, logger) + }, cancellationToken).ConfigureAwait(false); + + // Send succeeded: increment the catch-up signal. Empty-destination rows + // skip both the send and the catch-up bump — they are removed below but + // do not drive the loop forward. + sentCount++; + } + + // Post-send lease check. SendAsync may have taken longer than the remaining + // lease; if so a peer poller may have already re-acquired and re-dispatched + // this row. Skip Remove and let the lease-expiry sweep reclaim the row on + // the next poll. The trade-off is a possible duplicate send (at-least-once + // timeout semantics, already documented), not a duplicate Remove racing a + // peer's lease reclaim. + if (timeout.LockExpiresAt.HasValue && + timeout.LockExpiresAt.Value <= _timeProvider.GetUtcNow()) + { + logger.LogWarning( + "Lease for timeout {TimeoutId} expired during SendAsync (expires at {Expires}); skipping Remove. " + + "Next poll will reclaim the row.", + timeout.Id, timeout.LockExpiresAt.Value); + continue; + } + + // Pass the captured lease owner only when one is set — the store treats null + // as the unconditional id-only path and a non-null Guid as lease-checked. + Guid? lockOwner = timeout.LockedBy != Guid.Empty ? timeout.LockedBy : null; + // A remove failure is not a send failure: the message was already delivered. + // Swallow non-OCE remove errors and log a warning so the row stays in the + // store for the next poll to re-attempt removal (at-least-once semantics). + // Token propagation: StopAsync becomes bounded by the lifecycle token's + // deadline. A cancel-during-remove leaves the timeout "dispatched but not + // removed" — next poll redispatches, consistent with at-least-once semantics. + try + { + await _finder.RemoveDispatchedTimeoutAsync(timeout.Id, lockOwner, cancellationToken).ConfigureAwait(false); + } + catch (OperationCanceledException) + { + throw; + } + catch (Exception removeEx) + { + logger.LogWarning(removeEx, + "Remove failed for timeout {TimeoutId} after successful send; row remains for next poll.", + timeout.Id); + } + } + catch (Exception ex) when (ex is not OperationCanceledException) + { + logger.LogError(ex, "Error dispatching timeout {TimeoutId}", timeout.Id); + + try + { + Guid? lockOwner = timeout.LockedBy != Guid.Empty ? timeout.LockedBy : null; + await _finder.ReleaseDispatchedTimeoutAsync(timeout.Id, lockOwner, cancellationToken).ConfigureAwait(false); + } + catch (Exception releaseEx) when (releaseEx is not OperationCanceledException) + { + logger.LogError(releaseEx, "Error releasing timeout {TimeoutId} after dispatch failure", timeout.Id); + } + } + } + + return sentCount; + } + catch (OperationCanceledException) when (cancellationToken.IsCancellationRequested) + { + // The shutdown CT cancelled us; clean exit. This branch handles the legitimate + // shutdown OCE; the next branch handles any other OCE (e.g., a Bus.SendAsync's + // internal cancellation that doesn't share our token) so it doesn't escape silently. + return 0; + } + catch (OperationCanceledException ex) + { + logger.LogWarning(ex, "Unexpected OperationCanceledException polling for process manager timeouts (not the shutdown token)."); + return 0; + } + catch (Exception ex) + { + logger.LogError(ex, "Error polling for process manager timeouts"); + return 0; + } + } + + // Per-tick catch-up cap. After a multi-hour outage the timeout store can hold a large + // backlog; without a catch-up loop, drain rate is `BatchSize / PollInterval` (e.g. + // 500/30s ≈ 16/s for default config — a 1 M backlog takes ~17 h to clear). When a poll + // returns a non-empty batch we re-poll immediately up to this cap before waiting for + // the next tick, so the steady-state continues to back off while a backlog drains + // quickly. 32 iterations × default 500 batch = 16k timeouts processed per outer tick + // before yielding to the next scheduled poll. + private const int MaxCatchUpIterationsPerTick = 32; + + private async Task PollLoop(TimeSpan interval, CancellationToken cancellationToken) + { + // Use the TimeProvider-aware PeriodicTimer overload so tests with FakeTimeProvider + // can drive the loop. The parameterless `new PeriodicTimer(interval)` ignores the + // injected _timeProvider — only TimeProvider.System would fire the timer, leaving + // time-controlled tests unable to advance the loop. + using var timer = new PeriodicTimer(interval, _timeProvider); + try + { + while (await timer.WaitForNextTickAsync(cancellationToken).ConfigureAwait(false)) + { + // Catch-up loop: while the previous batch was non-empty, immediately + // re-poll without waiting for the next tick. The cap prevents a continuous + // flood of past-due timeouts from starving the rest of the host's tasks. + for (var i = 0; i < MaxCatchUpIterationsPerTick; i++) + { + var dispatched = await PollOnceAsync(cancellationToken).ConfigureAwait(false); + if (dispatched == 0) + { + break; + } + } + } + } + catch (OperationCanceledException) + { + // Shutdown — clean exit. + } + catch (Exception ex) + { + // PollOnceAsync catches its own exceptions, so reaching here implies the + // timer itself faulted. Log and exit; the host's StopAsync observes the + // task completion. + logger.LogError(ex, "ProcessManagerTimeoutService poll loop terminated unexpectedly."); + } + } + + /// + public async ValueTask DisposeAsync() + { + // Mirror StopAsync: Interlocked.Exchange claims exclusive ownership of _stoppingCts so + // a racing StopAsync+DisposeAsync pair can't both call Dispose on the same CTS. + var cts = Interlocked.Exchange(ref _stoppingCts, null); + if (cts != null) + { + try { await cts.CancelAsync().ConfigureAwait(false); } + catch (ObjectDisposedException) { } + } + // Snapshot the polling task to a local so a racing StopAsync that nulls the field + // after our check cannot trip a null-deref on the abandoned-task observer below. + var pollingTask = _pollingTask; + var pollingCompleted = false; + if (pollingTask != null) + { +#pragma warning disable VSTHRD003 // _pollingTask was started by StartAsync on this instance. + // Bound the wait so a non-cooperative ITimeoutStore (sync-over-async wedge, + // hung network call, etc.) cannot wedge DI shutdown. On timeout the polling + // task is left to GC; any in-flight Send/Remove will complete or be torn + // down by the cancelled CTS captured above. We attach an unobserved-fault + // observer in that case so an eventual fault on the abandoned task does not + // surface as a `TaskScheduler.UnobservedTaskException` event at finalization. + try + { + await pollingTask.WaitAsync(config.DisposeTimeout).ConfigureAwait(false); + pollingCompleted = true; + } + catch (OperationCanceledException) { } + catch (TimeoutException) + { + logger.LogWarning( + "Polling task did not complete within {Timeout}; abandoning the await and continuing dispose.", + config.DisposeTimeout); + _ = pollingTask.ContinueWith( + static t => _ = t.Exception, + CancellationToken.None, + TaskContinuationOptions.OnlyOnFaulted | TaskContinuationOptions.ExecuteSynchronously, + TaskScheduler.Default); + } +#pragma warning restore VSTHRD003 + } + // Mirror StopAsync's timeout-path semantics: only dispose the CTS when the polling + // task actually completed. When the WaitAsync timed out / was cancelled, the task + // is still running and may read cts.Token on its next loop iteration — disposing + // here would surface as ObjectDisposedException inside PollLoop's PeriodicTimer and + // log as "poll loop terminated unexpectedly". The fault observer above ensures the + // abandoned task's eventual fault is observed; the CTS is GC-reclaimable when the + // task finally completes. + if (pollingCompleted) + { + cts?.Dispose(); + } + } +} diff --git a/src/ServiceConnect/Services/Processors/AggregatorDescriptor.cs b/src/ServiceConnect/Services/Processors/AggregatorDescriptor.cs new file mode 100644 index 000000000..4ba5f8961 --- /dev/null +++ b/src/ServiceConnect/Services/Processors/AggregatorDescriptor.cs @@ -0,0 +1,14 @@ +namespace ServiceConnect.Services.Processors; + +internal sealed record AggregatorDescriptor( + Type MessageType, + Type AggregatorBaseType, + string AggregatorName, + int BatchSize, + TimeSpan Timeout, + // Returns an IReadOnlyList boxed as object. The concrete type is + // determined at registry build time by CompileBuildTypedList. Callers must cast to + // IReadOnlyList; a wrong cast fails at dispatch with InvalidCastException + // rather than silently accepting a non-IReadOnlyList IList. + Func, object> BuildTypedList, + Func InvokeExecuteAsync); diff --git a/src/ServiceConnect/Services/Processors/AggregatorProcessor.cs b/src/ServiceConnect/Services/Processors/AggregatorProcessor.cs new file mode 100644 index 000000000..10c2c410e --- /dev/null +++ b/src/ServiceConnect/Services/Processors/AggregatorProcessor.cs @@ -0,0 +1,534 @@ +using System.Collections.Concurrent; +using System.Threading; +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Services.Processors; + +internal sealed class AggregatorProcessor( + AggregatorRegistry registry, + IConsumeScopeAccessor scopeAccessor, + IServiceScopeFactory scopeFactory, + ILogger logger, + IAggregatorPersistor? persistor = null, + TimeProvider? timeProvider = null) : IMessageProcessor, IAsyncDisposable +{ + private readonly TimeProvider _timeProvider = timeProvider ?? TimeProvider.System; + // ITimer (vs raw Timer) so the per-aggregator flush timer fires off the injected + // TimeProvider — FakeTimeProvider.Advance(...) drives the timer in tests without + // wall-clock sleeps. StreamProcessor uses the same pattern. + private readonly ConcurrentDictionary _timers = new(StringComparer.Ordinal); + // Single-flight lock for ResetTimer. Concurrent calls for the same aggregator + // would otherwise rely on ConcurrentDictionary.AddOrUpdate factory semantics, + // whose factory may re-run under contention — losing-factory Timer instances + // are then orphaned (already running, never installed, never disposed). +#if NET9_0_OR_GREATER + private readonly System.Threading.Lock _resetTimerLock = new(); +#else + private readonly object _resetTimerLock = new(); +#endif + // Per-aggregator flush lock. Holding this across the full flush body prevents + // the timer-fired path and the batch-size path from double-flushing and + // racing on Get/Invoke/Remove. + private readonly ConcurrentDictionary _flushLocks = new(StringComparer.Ordinal); + private readonly CancellationTokenSource _disposeCts = new(); + private readonly ConcurrentDictionary _activeFlushes = new(); + private int _flushId; + private int _disposed; + + private static string ExtractIdempotencyKey(IDictionary headers) + { + if (headers.TryGetValue(HeaderKeys.MessageId, out var raw)) + { + var decoded = HeaderDecoder.Decode(raw); + if (!string.IsNullOrEmpty(decoded)) + { + return decoded; + } + } + // Producer didn't set a message id (legacy / third-party transport). Falling back + // to a fresh GUID disables idempotency for this delivery — the insert always + // proceeds — but keeps the contract honoured so downstream code paths don't + // branch on null. The retry-redelivery race the key defends against does not + // apply when the producer doesn't tag messages with a stable identifier. + return Guid.NewGuid().ToString(); + } + + public async Task ProcessAsync( + ReadOnlyMemory messageBytes, Type messageType, object? message, + IDictionary headers, Envelope envelope, + CancellationToken cancellationToken = default) + { + cancellationToken.ThrowIfCancellationRequested(); + ObjectDisposedException.ThrowIf(Volatile.Read(ref _disposed) != 0, this); + + if (message == null) + { + return ProcessResult.NotHandled; + } + + if (!registry.TryGet(messageType, out var descriptor)) + { + return ProcessResult.NotHandled; + } + + if (persistor == null) + { + logger.LogWarning("IAggregatorPersistor not registered. Cannot aggregate {MessageType}", messageType.FullName); + return ProcessResult.NotHandled; + } + + // IAggregatorPersistor.InsertDataAsync requires IHasCorrelationId. All aggregatable + // message types must implement it; Message does so automatically. Non-implementers are + // rejected here rather than at the persistor boundary so the error surfaces at the + // processor level with a clear message. + if (message is not IHasCorrelationId withCorrId) + { + logger.LogWarning( + "Message type '{MessageType}' does not implement IHasCorrelationId; cannot aggregate", + messageType.FullName); + return ProcessResult.NotHandled; + } + + // Use the broker MessageId as the idempotency key so a retry-queue redelivery + // between Insert and broker ack is suppressed at the persistor. The key is + // stable across all retry shapes (per-queue retry, broker connection-storm + // retry, handler-throw nack) because the broker republishes the same message + // with the same MessageId. Fall back to a fresh GUID if MessageId is missing + // (legacy producer or third-party transport): the insert proceeds without + // idempotency protection but does not block the dispatch. + var idempotencyKey = ExtractIdempotencyKey(headers); + await persistor.InsertDataAsync(withCorrId, descriptor.AggregatorName, idempotencyKey, cancellationToken).ConfigureAwait(false); + + // Use CountResolvedAsync so unresolved-only batches don't trigger empty flushes. + // CountAsync (total rows) would fire the gate on every message in an unresolved-only + // batch — each flush returns no-op (ResolvedMessages.Count == 0) but still acquires + // the per-aggregator semaphore and makes a GetSnapshotAsync round-trip. + // CountResolvedAsync is the cheap shape on first-party persistors; the interface + // default delegates to CountAsync for third-party implementations. + var count = await persistor.CountResolvedAsync(descriptor.AggregatorName, cancellationToken).ConfigureAwait(false); + if (descriptor.BatchSize > 0 && count >= descriptor.BatchSize) + { + // Register in _activeFlushes BEFORE reading _disposeCts.Token. A concurrent + // DisposeAsync either (a) takes its drain snapshot before our TryAdd — we + // re-check _disposed below and bail with ODE; or (b) sees our entry in the + // snapshot and awaits its completion. Either way _disposeCts.Token is only + // ever read while DisposeAsync is still awaiting our task. + var id = Interlocked.Increment(ref _flushId); + var tcs = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + _activeFlushes.TryAdd(id, tcs.Task); + try + { + ObjectDisposedException.ThrowIf(Volatile.Read(ref _disposed) != 0, this); + + using var linkedCts = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken, _disposeCts.Token); + await FlushAggregatorAsync(descriptor, scopeAccessor.Current, descriptor.BatchSize > 0 ? descriptor.BatchSize : 1, linkedCts.Token).ConfigureAwait(false); + tcs.TrySetResult(); + } + catch (OperationCanceledException ex) + { + tcs.TrySetCanceled(ex.CancellationToken); + throw; + } + catch (Exception ex) + { + tcs.TrySetException(ex); + throw; + } + finally + { + _activeFlushes.TryRemove(id, out _); + } + } + else if (descriptor.Timeout > TimeSpan.Zero) + { + ResetTimer(descriptor); + } + + return ProcessResult.Handled; + } + + private void ResetTimer(AggregatorDescriptor descriptor) + { + ITimer? previous; + ITimer newTimer; + lock (_resetTimerLock) + { + // Re-check _disposed under the same lock that DisposeAsync's timer cleanup + // takes. Without this check a ProcessAsync that passed the entry guard at + // ProcessAsync line 41 can land here after DisposeAsync cleared _timers and + // install a fresh Timer that nobody disposes (bounded leak per aggregator-name). + if (Volatile.Read(ref _disposed) != 0) + { + return; + } + + _timers.TryGetValue(descriptor.AggregatorName, out previous); + newTimer = _timeProvider.CreateTimer(_ => OnTimerFired(descriptor), null, descriptor.Timeout, Timeout.InfiniteTimeSpan); + _timers[descriptor.AggregatorName] = newTimer; + } + previous?.Dispose(); + } + + private void OnTimerFired(AggregatorDescriptor descriptor) + { + // Register the TaskCompletionSource in _activeFlushes BEFORE consulting _disposed + // so that DisposeAsync's snapshot at _activeFlushes.Values.ToArray() is guaranteed + // to either (a) include our entry — DisposeAsync awaits it — or (b) take its snapshot + // AFTER we observe _disposed and bail. + // + // The reverse order (read _disposed, then TryAdd) had a window where DisposeAsync + // could set _disposed=1 between our read and the snapshot; the snapshot would miss + // our entry; DisposeAsync would dispose _disposeCts; and RunFlushAsync's defensive + // catch (ObjectDisposedException) softened the failure to quiet cancellation. + var id = Interlocked.Increment(ref _flushId); + var tcs = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + _activeFlushes.TryAdd(id, tcs.Task); + + // Re-check after registration. If DisposeAsync's Exchange(_disposed,1) ran before + // our TryAdd, our entry was missed by the drain snapshot — complete the tcs as + // cancelled and remove it so we don't leak the registration past dispose. + if (Volatile.Read(ref _disposed) != 0) + { + tcs.TrySetCanceled(); + _activeFlushes.TryRemove(id, out _); + return; + } + + // Fire and forget from timer callback — log any errors. + // Use _disposeCts.Token via the same shutdown-race-tolerant read in RunFlushAsync. + _ = RunFlushAsync(id, tcs, descriptor); + } + + private async Task RunFlushAsync(int id, TaskCompletionSource tcs, AggregatorDescriptor descriptor) + { + // OnTimerFired's `_disposed` guard and this method's `_disposeCts.Token` read + // aren't atomic: a callback that passed the guard at T1 can still reach here + // after DisposeAsync has disposed `_disposeCts`. Wrap the Token read so the + // shutdown race surfaces as quiet cancellation instead of a spurious ERROR log. + CancellationToken token; + try + { + token = _disposeCts.Token; + } + catch (ObjectDisposedException) + { + tcs.TrySetCanceled(); + _activeFlushes.TryRemove(id, out _); + return; + } + + try + { + // Pass null for ambientScope so FlushAggregatorAsync always creates a fresh DI + // scope. The Timer captured the dispatcher's ExecutionContext (and therefore + // the AsyncLocal-backed IConsumeScopeAccessor) at construction time, so reading + // the accessor from this callback would observe the disposed dispatcher scope. + // Timer path: flush if any messages are buffered (minThreshold = 1). + // The batch-size threshold only applies when ProcessAsync triggers the flush. + await FlushAggregatorAsync(descriptor, ambientScope: null, minThreshold: 1, token).ConfigureAwait(false); + tcs.TrySetResult(); + } + catch (OperationCanceledException ex) + { + tcs.TrySetCanceled(ex.CancellationToken); + } + catch (Exception ex) + { + logger.LogError(ex, "Error flushing aggregator {AggregatorName} on timeout", descriptor.AggregatorName); + tcs.TrySetException(ex); + } + finally + { + _activeFlushes.TryRemove(id, out _); + } + } + + private async Task FlushAggregatorAsync(AggregatorDescriptor descriptor, IServiceProvider? ambientScope, int minThreshold, CancellationToken cancellationToken) + { + // Fast-fail if already disposed before we touch _flushLocks at all. + ObjectDisposedException.ThrowIf(Volatile.Read(ref _disposed) != 0, this); + + SemaphoreSlim flushLock; + if (!_flushLocks.TryGetValue(descriptor.AggregatorName, out flushLock!)) + { + // Re-check before allocating — DisposeAsync may have run between TryGetValue + // and here. This minimises wasted work in the common post-dispose path. + ObjectDisposedException.ThrowIf(Volatile.Read(ref _disposed) != 0, this); + + var freshLock = new SemaphoreSlim(1, 1); + flushLock = _flushLocks.GetOrAdd(descriptor.AggregatorName, freshLock); + + // If another thread won the GetOrAdd race, freshLock is surplus — dispose it. + if (!ReferenceEquals(flushLock, freshLock)) + { + freshLock.Dispose(); + } + + // Re-check _disposed: DisposeAsync's _flushLocks.Clear() may have run between + // TryGetValue and GetOrAdd. Remove and dispose our (possibly just-inserted) lock + // so it does not leak past the disposal foreach. + if (Volatile.Read(ref _disposed) != 0) + { + _flushLocks.TryRemove(new KeyValuePair(descriptor.AggregatorName, flushLock)); + flushLock.Dispose(); + throw new ObjectDisposedException(nameof(AggregatorProcessor)); + } + } + + await flushLock.WaitAsync(cancellationToken).ConfigureAwait(false); + try + { + if (_timers.TryRemove(descriptor.AggregatorName, out var activeTimer)) + { + await activeTimer.DisposeAsync().ConfigureAwait(false); + } + + if (persistor == null) + { + return; + } + + // Use the snapshot API so we can (a) remove only the specific records we dispatched, + // leaving concurrently-inserted messages intact (closes the Get/RemoveAll race), and + // (b) leave unresolved-type records in place instead of silently wiping them. + var snapshot = await persistor.GetSnapshotAsync(descriptor.AggregatorName, cancellationToken).ConfigureAwait(false); + if (snapshot.ResolvedMessages.Count == 0) + { + if (snapshot.UnresolvedCount > 0) + { + logger.LogWarning( + "Aggregator {AggregatorName} has {UnresolvedCount} record(s) with unresolvable types; skipping dispatch until type is available", + descriptor.AggregatorName, snapshot.UnresolvedCount); + } + + // The persistor may have leased the unresolved rows during snapshot acquisition + // (Mongo's per-snapshot lease stamps LockedBy/LockExpiresAt up front, regardless + // of which rows survive the resolved/unresolved partition). Release defensively + // so the next flush — when the unresolvable type becomes available, or when a + // retry sweeps stale unresolved rows — can re-claim immediately rather than + // waiting out the lease TTL. CT.None: cleanup must run even if the dispatch + // token has fired. + try + { + await persistor.ReleaseSnapshotAsync(descriptor.AggregatorName, snapshot, CancellationToken.None).ConfigureAwait(false); + } + catch (Exception releaseEx) + { + logger.LogWarning(releaseEx, + "Aggregator {AggregatorName} lease release on empty-resolved snapshot failed; lease-expiry will reclaim.", + descriptor.AggregatorName); + } + return; + } + + // Re-check threshold AFTER GetSnapshotAsync. ProcessAsync gates on CountResolvedAsync + // before this method runs, but GetSnapshotAsync competes with peer flushers for the + // lease — a peer holding the lease leaves us with only the unclaimed remnants, which + // can be below BatchSize. Dispatching a sub-batch breaks the documented batch-size + // contract; release the lease and skip so the next flush (when the peer's lease + // expires or releases) re-attempts with the full batch. + if (snapshot.ResolvedMessages.Count < minThreshold) + { + try + { + await persistor.ReleaseSnapshotAsync(descriptor.AggregatorName, snapshot, CancellationToken.None).ConfigureAwait(false); + } + catch (Exception releaseEx) + { + logger.LogWarning(releaseEx, + "Aggregator {AggregatorName} lease release after sub-batch skip failed; lease-expiry will reclaim.", + descriptor.AggregatorName); + } + return; + } + + await DispatchResolvedAsync(descriptor, snapshot, ambientScope, cancellationToken).ConfigureAwait(false); + } + finally + { + flushLock.Release(); + } + } + + // Resolves the aggregator handler, invokes it with the snapshot payload, removes the + // snapshot on success, and releases the lease on failure/cancellation. Extracted so + // FlushAggregatorAsync stays within the MA0051 method-length limit. + private async Task DispatchResolvedAsync( + AggregatorDescriptor descriptor, + IAggregatorSnapshot snapshot, + IServiceProvider? ambientScope, + CancellationToken cancellationToken) + { + // BuildTypedList expects IList; copy the read-only snapshot into a fresh + // mutable list. The snapshot itself stays immutable; this is the handler-facing + // payload. IReadOnlyList is not co-variant to IList, + // so an as-cast cannot avoid this allocation. + List resolvedList = [.. snapshot.ResolvedMessages]; + var typedList = descriptor.BuildTypedList(resolvedList); + + // The batch path passes its dispatcher-pushed scope through ambientScope. The timer + // path passes null because the Timer captured the dispatcher's ExecutionContext at + // construction, so reading the AsyncLocal here would return the now-disposed scope. + IServiceScope? localScope = null; + var handlerThrew = false; + try + { + var resolverProvider = ambientScope ?? (localScope = scopeFactory.CreateScope()).ServiceProvider; + + var aggregator = resolverProvider.GetService(descriptor.AggregatorBaseType); + if (aggregator == null) + { + return; + } + + // Execute first, then remove on success. On handler exception we propagate + // without removing so the broker redelivers and the snapshot is re-flushable. + // Cancellation also leaves the snapshot in place — by-design for retry on + // next admission. The catch below releases the persistor lease so the next + // redelivery's GetSnapshotAsync can re-claim immediately; without the + // release, the rows sit under the failed session's lease for the full TTL + // (5 minutes on the Mongo persistor) and the redelivery sees an empty + // snapshot — handler is never re-invoked until the lease expires. + try + { + await descriptor.InvokeExecuteAsync(aggregator, typedList, cancellationToken).ConfigureAwait(false); + } + catch + { + handlerThrew = true; + throw; + } + // RemoveSnapshotAsync is a best-effort cleanup. The handler has ALREADY committed + // its side effects; if the persistor write fails transiently (Mongo blip, network + // drop), propagating the exception would NACK the broker → redelivery → the next + // flush mints a fresh LeaseSessionId, re-claims the still-present rows, and runs + // the handler AGAIN with the same payload — duplicate dispatch on a handler whose + // side effects we already committed. Log and swallow; the rows stay under the + // current lease until it expires, at which point a peer (or the same worker) + // re-claims and re-attempts the remove. In the worst case the broker observes a + // duplicate dispatch ONLY after the lease expires, not on every transient blip. + try + { + await persistor!.RemoveSnapshotAsync(descriptor.AggregatorName, snapshot, cancellationToken).ConfigureAwait(false); + } + catch (OperationCanceledException) when (cancellationToken.IsCancellationRequested) + { + // Handler succeeded; release the lease eagerly so the redelivery's next + // GetSnapshotAsync can re-claim immediately instead of waiting for TTL. + // Use CancellationToken.None so the release runs even though dispatch was cancelled. + try + { + await persistor!.ReleaseSnapshotAsync(descriptor.AggregatorName, snapshot, CancellationToken.None).ConfigureAwait(false); + } + catch (Exception releaseEx) + { + logger.LogWarning(releaseEx, + "Aggregator {AggregatorName} lease release on cancel path failed; lease-expiry will reclaim.", + descriptor.AggregatorName); + } + throw; + } + catch (Exception removeEx) + { + logger.LogWarning(removeEx, + "Aggregator {AggregatorName} RemoveSnapshotAsync failed after successful handler dispatch; rows remain under lease and will be reclaimed when the lease expires. Handler side effects are NOT replayed by NACKing the broker.", + descriptor.AggregatorName); + var tags = new System.Diagnostics.TagList + { + { "messaging.system", "serviceconnect" }, + { "aggregator.name", descriptor.AggregatorName }, + }; + ServiceConnect.Diagnostics.ServiceConnectMeter.AddSnapshotRemoveFailedAfterDispatch(tags); + } + + if (snapshot.UnresolvedCount > 0) + { + logger.LogWarning( + "Aggregator {AggregatorName} dispatched {Count} record(s); {UnresolvedCount} unresolved record(s) retained for a later flush", + descriptor.AggregatorName, snapshot.ResolvedMessages.Count, snapshot.UnresolvedCount); + } + } + finally + { + // Best-effort lease release on handler failure so the redelivery's + // GetSnapshotAsync can re-claim immediately. Uses CancellationToken.None + // to ensure cleanup runs even if the dispatch token was cancelled. The + // ReleaseSnapshotAsync DIM is a no-op for non-leasing persistors. + if (handlerThrew && persistor is not null) + { + try + { + await persistor.ReleaseSnapshotAsync(descriptor.AggregatorName, snapshot, CancellationToken.None).ConfigureAwait(false); + } + catch (Exception releaseEx) + { + logger.LogWarning(releaseEx, + "Aggregator {AggregatorName} lease release after handler failure failed; lease-expiry will reclaim.", + descriptor.AggregatorName); + } + } + localScope?.Dispose(); + } + } + + public async ValueTask DisposeAsync() + { + if (Interlocked.Exchange(ref _disposed, 1) != 0) + { + return; + } + + // Signal all in-flight flushes to cancel. + await _disposeCts.CancelAsync().ConfigureAwait(false); + + // Await all tracked pending flushes to complete or cancel. A user + // Aggregator.ExecuteAsync that throws a non-OCE exception faults the + // tracked flush task; if that escapes the foreach the timer / semaphore + // cleanup below is skipped and the processor leaks resources past dispose. + var pending = _activeFlushes.Values.ToArray(); + foreach (var task in pending) + { + try + { + await task.ConfigureAwait(false); + } + catch (OperationCanceledException) + { + // Expected — we just cancelled it. + } + catch (ObjectDisposedException) + { + // Semaphore may have been disposed during cancellation. + } + catch (Exception ex) + { + // User handler faulted during the in-flight flush. Log and continue + // so the rest of the cleanup (timers, semaphores, _disposeCts) still runs. + logger.LogError(ex, "In-flight aggregator flush threw during disposal; cleanup continues."); + } + } + + // Sequence the timer cleanup against ResetTimer via _resetTimerLock so a Timer + // installed in the disposal window does not leak past the foreach. + lock (_resetTimerLock) + { + foreach (var kvp in _timers) + { + kvp.Value.Dispose(); + } + + _timers.Clear(); + } + + foreach (var kvp in _flushLocks) + { + kvp.Value.Dispose(); + } + + _flushLocks.Clear(); + + _disposeCts.Dispose(); + } +} diff --git a/src/ServiceConnect/Services/Processors/AggregatorRegistry.cs b/src/ServiceConnect/Services/Processors/AggregatorRegistry.cs new file mode 100644 index 000000000..4a483331b --- /dev/null +++ b/src/ServiceConnect/Services/Processors/AggregatorRegistry.cs @@ -0,0 +1,194 @@ +using System.Collections.Frozen; +using System.Diagnostics.CodeAnalysis; +using System.Linq.Expressions; +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Services.Processors; + +internal sealed class AggregatorRegistry : IHandlerRegistry +{ + // Built once at construction; FrozenDictionary for read-heavy lookup. + private readonly FrozenDictionary _descriptors; + + internal AggregatorRegistry( + IReadOnlyList handlerReferences, + IServiceScopeFactory scopeFactory, + ILogger logger) + { + ArgumentNullException.ThrowIfNull(handlerReferences); + ArgumentNullException.ThrowIfNull(scopeFactory); + ArgumentNullException.ThrowIfNull(logger); + + var builder = new Dictionary(); + + // Single short-lived scope: aggregator instances are only consulted for BatchSize/Timeout + // (configuration constants). Disposing the scope before the constructor returns prevents + // captive scoped dependencies and disposable aggregators being tracked by the root provider. + using var scope = scopeFactory.CreateScope(); + foreach (var href in handlerReferences) + { + var aggregatorBaseType = HandlerScanner.FindAggregatorBaseType(href.HandlerType); + if (aggregatorBaseType == null) + { + continue; + } + + if (builder.TryGetValue(href.MessageType, out var existing)) + { + if (existing.HandlerType == href.HandlerType) + { + continue; // identical (MessageType, HandlerType) pair registered twice — dedupe silently + } + + throw new InvalidOperationException( + $"Duplicate aggregator registration for message type '{href.MessageType.FullName}'. " + + $"Only one Aggregator may be registered per message type; found '{existing.HandlerType.FullName}' and '{href.HandlerType.FullName}'."); + } + + // Synchronous `using var scope = scopeFactory.CreateScope()` calls IServiceScope.Dispose, + // which throws `InvalidOperationException("AsyncDisposableServiceNotSupported")` from MS.DI + // for any tracked service that implements IAsyncDisposable only (not also IDisposable). + // Check the concrete handler type before resolving so the guard fires before any scope + // disposal interleaves with the exception path. + if (typeof(IAsyncDisposable).IsAssignableFrom(href.HandlerType) && + !typeof(IDisposable).IsAssignableFrom(href.HandlerType)) + { + throw new InvalidOperationException( + $"Aggregator '{href.HandlerType.FullName}' implements IAsyncDisposable but not IDisposable. " + + "AggregatorRegistry uses synchronous scope disposal at construction (the aggregator instance is " + + "only consulted for BatchSize/Timeout configuration), which is incompatible with IAsyncDisposable-only " + + "lifetimes. Either implement IDisposable alongside IAsyncDisposable, or refactor the aggregator's " + + "shutdown logic to avoid IAsyncDisposable."); + } + + // AggregatorName is derived from handlerType.FullName. A generic subclass + // produces a FullName that embeds the assembly-qualified name of its generic + // arguments — including Version= — defeating the version-stable naming this + // derivation is designed to provide. Require non-generic subclasses. + if (href.HandlerType.IsGenericType) + { + throw new InvalidOperationException( + $"Aggregator '{href.HandlerType.FullName}' is a generic type. Generic aggregator subclasses " + + "produce unstable FullNames that embed assembly version tokens, which orphan persisted state " + + "across deploys. Declare a non-generic subclass for each closed message type."); + } + + var descriptor = BuildDescriptor(href.MessageType, aggregatorBaseType, href.HandlerType, scope.ServiceProvider); + builder[href.MessageType] = (descriptor, href.HandlerType); + + if (logger.IsEnabled(LogLevel.Debug)) + { + logger.LogDebug( + "Registered aggregator descriptor: message={MessageType}, aggregator={AggregatorType}, batchSize={BatchSize}, timeout={Timeout}", + href.MessageType.Name, href.HandlerType.Name, descriptor.BatchSize, descriptor.Timeout); + } + } + + _descriptors = builder.ToDictionary(kvp => kvp.Key, kvp => kvp.Value.Descriptor).ToFrozenDictionary(); + } + + internal bool TryGet(Type messageType, [NotNullWhen(true)] out AggregatorDescriptor? descriptor) + => _descriptors.TryGetValue(messageType, out descriptor); + + private static AggregatorDescriptor BuildDescriptor(Type messageType, Type aggregatorBaseType, Type handlerType, IServiceProvider sp) + { + object aggregator; + try + { + aggregator = sp.GetRequiredService(aggregatorBaseType); + } + catch (Exception ex) + { + throw new InvalidOperationException( + $"AggregatorRegistry could not materialize aggregator for message type '{messageType.FullName}'. Ensure the aggregator is registered in DI.", ex); + } + + // One-time reflection at startup is acceptable — reading BatchSize/Timeout from an instance + // whose values are treated as configuration constants for the aggregator class. + var batchSize = (int)aggregatorBaseType.GetMethod(nameof(Aggregator.BatchSize))!.Invoke(aggregator, null)!; + var timeout = (TimeSpan)aggregatorBaseType.GetMethod(nameof(Aggregator.Timeout))!.Invoke(aggregator, null)!; + + // Both BatchSize and Timeout must be positive. If BatchSize > 0 but Timeout is zero, + // the processor never schedules a timer; when the count stays below BatchSize the + // buffered tail is never flushed. If BatchSize is 0 or negative there is no count-based + // flush trigger either. Requiring both guarantees at least one flush path is always active. + if (batchSize <= 0 || timeout <= TimeSpan.Zero) + { + throw new InvalidOperationException( + $"Aggregator '{handlerType.FullName}' has BatchSize={batchSize} and Timeout={timeout}. " + + "Both BatchSize (>0) and Timeout (>TimeSpan.Zero) must be configured; without both, " + + "messages can be buffered with no flush path to deliver them."); + } + + return new AggregatorDescriptor( + MessageType: messageType, + AggregatorBaseType: aggregatorBaseType, + // Use the concrete handler type's FullName, not the closed generic base type. + // The closed generic base (e.g. Aggregator) embeds the assembly-qualified + // name of the message type argument, whose Version= component rotates on every assembly + // version bump and silently orphans persisted aggregator state. The concrete handler + // class (e.g. MyOrderAggregator) has no generic arguments in its FullName and is + // version-independent. + AggregatorName: handlerType.FullName!, + BatchSize: batchSize, + Timeout: timeout, + BuildTypedList: CompileBuildTypedList(messageType), + InvokeExecuteAsync: CompileInvokeExecuteAsync(aggregatorBaseType, messageType)); + } + + private static Func, object> CompileBuildTypedList(Type messageType) + { + // Build: (IList raw) => { var list = new List(); for (var i = 0; i < raw.Count; i++) list.Add((TMsg)raw[i]); return (IReadOnlyList)list; } + // The block's return type is IReadOnlyList so the descriptor's contract is satisfied + // at expression-tree construction time: only a value that IS an IReadOnlyList can + // be returned. The lambda is stored as Func, object>; the box is a no-op + // reference cast since IReadOnlyList is a reference type. + var readOnlyListType = typeof(IReadOnlyList<>).MakeGenericType(messageType); + var listType = typeof(List<>).MakeGenericType(messageType); + + var rawParam = Expression.Parameter(typeof(IList), "raw"); + var listVar = Expression.Variable(listType, "list"); + var indexVar = Expression.Variable(typeof(int), "index"); + + var listCtor = listType.GetConstructor(Type.EmptyTypes)!; + var addMethod = listType.GetMethod("Add")!; + var countProp = typeof(ICollection).GetProperty(nameof(ICollection.Count))!; + var indexerProp = typeof(IList).GetProperty("Item")!; + + var breakLabel = Expression.Label("break"); + + var block = Expression.Block( + readOnlyListType, + [listVar, indexVar], + Expression.Assign(listVar, Expression.New(listCtor)), + Expression.Assign(indexVar, Expression.Constant(0)), + Expression.Loop( + Expression.IfThenElse( + Expression.LessThan(indexVar, Expression.Property(rawParam, countProp)), + Expression.Block( + Expression.Call(listVar, addMethod, Expression.Convert(Expression.Property(rawParam, indexerProp, indexVar), messageType)), + Expression.PostIncrementAssign(indexVar)), + Expression.Break(breakLabel)), + breakLabel), + Expression.Convert(listVar, readOnlyListType)); + + return Expression.Lambda, object>>(block, rawParam).Compile(); + } + + private static Func CompileInvokeExecuteAsync(Type aggregatorBaseType, Type messageType) + { + var aggParam = Expression.Parameter(typeof(object), "aggregator"); + var listParam = Expression.Parameter(typeof(object), "list"); + var ctParam = Expression.Parameter(typeof(CancellationToken), "cancellationToken"); + + var aggCast = Expression.Convert(aggParam, aggregatorBaseType); + var listCast = Expression.Convert(listParam, typeof(IReadOnlyList<>).MakeGenericType(messageType)); + + var method = aggregatorBaseType.GetMethod(nameof(Aggregator.ExecuteAsync))!; + var call = Expression.Call(aggCast, method, listCast, ctParam); + + return Expression.Lambda>(call, aggParam, listParam, ctParam).Compile(); + } +} diff --git a/src/ServiceConnect/Services/Processors/DefaultProcessManagerPropertyMapper.cs b/src/ServiceConnect/Services/Processors/DefaultProcessManagerPropertyMapper.cs new file mode 100644 index 000000000..da1198830 --- /dev/null +++ b/src/ServiceConnect/Services/Processors/DefaultProcessManagerPropertyMapper.cs @@ -0,0 +1,86 @@ +using System.Reflection; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Services.Processors; + +internal sealed class DefaultProcessManagerPropertyMapper : IProcessManagerPropertyMapper +{ + private readonly List _mappings = []; + public IReadOnlyList Mappings => _mappings; + + public void ConfigureMapping( + System.Linq.Expressions.Expression> processManagerProperty, + System.Linq.Expressions.Expression> messageExpression) + where TProcessManagerData : IProcessManagerData + where TMessage : Message + { + var propertiesHierarchy = new Dictionary(StringComparer.Ordinal); + + var body = processManagerProperty.Body; + if (body is System.Linq.Expressions.UnaryExpression unary) + { + body = unary.Operand; + } + + // Walk the MemberExpression chain from outer to inner so nested-property mappings + // (d => d.Inner.Id) are honoured alongside single-property mappings (d => d.OrderId). + // The walk visits the OUTERMOST property first (Id), then its parent (Inner); the + // persistor's foreach-over-PropertiesHierarchy.Reverse() then iterates inner-to-outer + // (Inner, Id) which is the order Expression.MakeMemberAccess needs to navigate + // data.Data → data.Data.Inner → data.Data.Inner.Id. The terminal Expression must be + // the lambda parameter; method calls, constants, and non-property members are + // rejected loudly at registration time to prevent silent miscorrelation. + var current = body; + while (current is System.Linq.Expressions.MemberExpression mem) + { + if (mem.Member is not PropertyInfo memberProp) + { + throw new ArgumentException( + $"Process manager property mapping must be a property-access chain (e.g. d => d.{nameof(IProcessManagerData.CorrelationId)} or d => d.Inner.Id). " + + $"Encountered non-property member '{mem.Member.Name}' in: {processManagerProperty.Body}", + nameof(processManagerProperty)); + } + propertiesHierarchy[memberProp.Name] = memberProp.PropertyType; + current = mem.Expression!; + } + + if (current is not System.Linq.Expressions.ParameterExpression || propertiesHierarchy.Count == 0) + { + throw new ArgumentException( + $"Process manager property mapping must be a property-access chain rooted on the data parameter (e.g. d => d.{nameof(IProcessManagerData.CorrelationId)} or d => d.Inner.Id). Got: {processManagerProperty.Body}", + nameof(processManagerProperty)); + } + + // Reject duplicate mappings for the same TMessage. FindData picks the first match + // via FirstOrDefault — if duplicates were allowed, the second ConfigureMapping call + // would be dead code with no warning. Throwing loudly surfaces misconfigurations at + // startup instead of as silent miscorrelation at runtime. + var messageType = typeof(TMessage); + for (int i = 0; i < _mappings.Count; i++) + { + if (_mappings[i].MessageType == messageType) + { + throw new InvalidOperationException( + $"ConfigureMapping was called more than once for message type '{messageType.FullName}'. " + + "Each TMessage may be configured at most once per saga; subsequent calls would be silently ignored by FirstOrDefault lookup. " + + "If you intended to replace the mapping, refactor the configuration to call ConfigureMapping a single time."); + } + } + + var map = new ProcessManagerToMessageMap + { + MessageType = messageType, + PropertiesHierarchy = propertiesHierarchy, + MessageProp = BuildMessageFunc(messageExpression) + }; + + _mappings.Add(map); + } + + private static Func BuildMessageFunc( + System.Linq.Expressions.Expression> messageExpression) + { + var compiled = messageExpression.Compile(); + return obj => compiled((TMessage)obj); + } +} diff --git a/src/ServiceConnect/Services/Processors/HandlerProcessor.cs b/src/ServiceConnect/Services/Processors/HandlerProcessor.cs new file mode 100644 index 000000000..b62c3a862 --- /dev/null +++ b/src/ServiceConnect/Services/Processors/HandlerProcessor.cs @@ -0,0 +1,277 @@ +using System.Collections.Concurrent; +using System.Linq.Expressions; +using System.Runtime.CompilerServices; +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Services; + +namespace ServiceConnect.Services.Processors; + +internal sealed class HandlerProcessor( + MessageHandlerRegistry registry, + IConsumeScopeAccessor scopeAccessor, + Lazy bus, + IBusConfiguration busConfig, + IQueueConfiguration queueConfig, + ConsumeContextPool contextPool, + IConsumeContextAccessor consumeContextAccessor, + ILogger logger, + IReplyStatusRequestReplyManager? replyStatusRequestReplyManager = null) : IMessageProcessor +{ + private readonly IConsumeContextAccessor _consumeContextAccessor = consumeContextAccessor; + private readonly ConsumeContextPool _contextPool = contextPool; + + public async Task ProcessAsync( + ReadOnlyMemory messageBytes, Type messageType, object? message, + IDictionary headers, Envelope envelope, + CancellationToken cancellationToken = default) + { + cancellationToken.ThrowIfCancellationRequested(); + if (message == null) + { + return ProcessResult.NotHandled; + } + + var scopedProvider = scopeAccessor.Current; + + // Walk up the message hierarchy — stop at Message and object. All matching + // handlers in the hierarchy are invoked. Defer list allocation until we + // actually find a handler; most no-op dispatches keep the list null. + List<(object Handler, MessageHandlerDescriptor Descriptor)>? invocations = null; + var checkedType = messageType; + while (checkedType != null && checkedType != typeof(Message) && checkedType != typeof(object)) + { + if (registry.TryGetOrBuild(checkedType, out var descriptor)) + { + foreach (var h in scopedProvider.GetServices(descriptor.HandlerInterfaceType)) + { + if (h != null) + { + (invocations ??= new(capacity: 1)).Add((h, descriptor)); + } + } + } + checkedType = checkedType.BaseType; + } + + if (invocations is null) + { + return ProcessResult.NotHandled; + } + + var resolvedBus = bus.Value; + var trustQuery = replyStatusRequestReplyManager + ?? scopedProvider.GetService() + ?? scopedProvider.GetService() as IReplyStatusRequestReplyManager; + var context = _contextPool.Rent( + resolvedBus, + headers, + queueConfig, + busConfig, + trustQuery, + cancellationToken); + try + { + using (_consumeContextAccessor.Push(context.Headers)) + { + List? handlerExceptions = null; + foreach (var (handler, descriptor) in invocations) + { + try + { + await descriptor.InvokeHandleAsync(handler, message, context, cancellationToken).ConfigureAwait(false); + } + catch (OperationCanceledException) when (cancellationToken.IsCancellationRequested) + { + // Co-operative shutdown — don't run remaining handlers; rethrow the OCE + // unaltered so callers can distinguish shutdown from handler faults. + throw; + } + catch (Exception ex) + { + // Collect handler faults so independent handlers for the same message + // all get a chance to run; aggregate at end of loop. + (handlerExceptions ??= []).Add(ex); + } + } + + if (handlerExceptions is not null) + { + // If the CT is cancelled and any collected exception is OCE, surface + // cancellation via ThrowIfCancellationRequested so the thrown OCE carries + // the caller's token. The collected OCE may carry a different token (e.g. + // a handler's own linked CT); throwing from the caller's CT ensures + // upstream dispatch applies shutdown semantics, not retry semantics. + // This also handles the race where the when-filter evaluated false at + // catch time but the CT was cancelled by the time the loop drained. + if (cancellationToken.IsCancellationRequested && handlerExceptions.Any(e => e is OperationCanceledException)) + { + // Throws OCE with the caller's CT; the collected OCE may carry a different token. + cancellationToken.ThrowIfCancellationRequested(); + } + + throw new AggregateException( + $"{handlerExceptions.Count} handler(s) threw while dispatching {message.GetType().Name}.", + handlerExceptions); + } + + // Slip-forward is decoupled from handler success. A failure here previously + // surfaced as Success=false out of the dispatcher, putting the message on the + // retry queue so the handler ran again on every redelivery until the retry + // budget was exhausted — duplicating side effects that already succeeded. + // Slip-forward is at-most-once on transient failure; a redelivered slip would + // also re-run the handler, which is the wrong trade-off for any handler with + // observable side effects (Send, HTTP, mutation). Cancellation still + // propagates so cooperative shutdown is unaffected. + try + { + await ForwardRoutingSlipAsync(message, messageType, headers, resolvedBus, busConfig, queueConfig, cancellationToken).ConfigureAwait(false); + } + catch (OperationCanceledException) when (cancellationToken.IsCancellationRequested) + { + throw; + } + catch (Exception ex) + { + logger.LogWarning(ex, + "Routing-slip forward failed for {MessageType} after handlers succeeded; slip dropped to avoid handler re-run on retry.", + messageType.Name); + } + } + } + finally + { + context.Release(); + } + + return ProcessResult.Handled; + } + + // AMQP queue/exchange names are at most 255 bytes; we clamp tighter and reject + // characters that are either structural in AMQP routing or commonly used in + // injection attempts. This guards against attacker-controlled RoutingSlip headers + // redirecting traffic to arbitrary queues. + // Cache compiled delegates for IBus.RouteAsync keyed by message type. + // Building a delegate via Expression.Lambda avoids repeated MakeGenericMethod + Invoke + // overhead on every routed message. + private static readonly ConcurrentDictionary, CancellationToken, Task>> + RouteAsyncDelegateCache = new(); + + private static Func, CancellationToken, Task> BuildRouteAsyncDelegate(Type messageType) + { + // IBus.RouteAsync(T message, IReadOnlyList destinations, CancellationToken ct) + var openMethod = typeof(IBus).GetMethod(nameof(IBus.RouteAsync))!; + var closedMethod = openMethod.MakeGenericMethod(messageType); + + var busParam = Expression.Parameter(typeof(IBus), "bus"); + var msgParam = Expression.Parameter(typeof(object), "message"); + var destParam = Expression.Parameter(typeof(IReadOnlyList), "destinations"); + var ctParam = Expression.Parameter(typeof(CancellationToken), "cancellationToken"); + + // Cast the untyped object parameter to the concrete message type expected by RouteAsync. + var castMsg = Expression.Convert(msgParam, messageType); + + var callExpr = Expression.Call(busParam, closedMethod, castMsg, destParam, ctParam); + return Expression.Lambda, CancellationToken, Task>>( + callExpr, busParam, msgParam, destParam, ctParam).Compile(); + } + + /// + /// Forwards the routing slip's next-step destinations after all handlers complete + /// successfully. + /// + /// + /// + /// Slip drop on handler throw. If any handler threw during dispatch, the + /// caller throws an BEFORE this method runs; the + /// in-flight slip-forward is therefore skipped on partial-failure dispatches. The + /// slip data remains in the message envelope (the RoutingSlip header is + /// not stripped during dispatch), so DLQ-routed messages and manual retries still + /// carry the slip and can resume the chain after the failure is resolved. + /// + /// + /// Cross-service destinations. Destinations are not required to appear in + /// the local ; any name that passes + /// (format, length, no AMQP control + /// characters) is accepted. RabbitMQ routes via the alternate-exchange / + /// mandatory-return path if the queue does not exist downstream. + /// + /// + private static async Task ForwardRoutingSlipAsync( + object message, Type messageType, IDictionary headers, + IBus bus, IBusConfiguration busConfig, IQueueConfiguration queueConfig, + CancellationToken cancellationToken) + { + if (!busConfig.EnableRoutingSlipProcessing) + { + return; + } + + if (!headers.TryGetValue(HeaderKeys.RoutingSlip, out var routingSlipRaw)) + { + return; + } + + var routingSlip = HeaderDecoder.Decode(routingSlipRaw); + + if (string.IsNullOrWhiteSpace(routingSlip)) + { + return; + } + + // Cap hop count BEFORE per-destination iteration. Without this, a hostile inbound + // RoutingSlip header crafted to maximise entries within the per-value header byte + // budget (~900 entries at 8 KiB) drives ~900 handler invocations per delivered + // message — direct amplification DoS. The cap converges with the per-destination + // validator (length, charset, no `amq.*`) and the local-queue self-loop rejection. + var maxHops = busConfig.MaxRoutingSlipHops; + if (maxHops <= 0) + { + // Misconfigured cap — treat as routing-slip disabled rather than unbounded. + return; + } + + var destinations = new List(); + var localQueue = queueConfig.QueueName; + foreach (var raw in routingSlip.Split(',', StringSplitOptions.RemoveEmptyEntries)) + { + var trimmed = raw.Trim(); + if (!IsValidRoutingSlipDestination(trimmed)) + { + throw new InvalidOperationException( + $"Invalid routing-slip destination '{trimmed}'. Destinations must be non-empty, at most {RoutingSlipDestinationValidator.MaxDestinationLength} characters, and must not contain AMQP wildcards, control characters, or `amq.*` reserved names."); + } + + // Reject self-loops in the slip — a malformed or hostile inbound header + // containing the local queue (e.g. `victim-q,victim-q,…`) would otherwise drive + // per-hop handler re-invocation against the same queue indefinitely. + if (!string.IsNullOrEmpty(localQueue) && string.Equals(trimmed, localQueue, StringComparison.OrdinalIgnoreCase)) + { + throw new InvalidOperationException( + $"Routing-slip destination '{trimmed}' matches the local queue name '{localQueue}'; self-loop rejected."); + } + + destinations.Add(trimmed); + + if (destinations.Count > maxHops) + { + throw new InvalidOperationException( + $"Routing-slip exceeds the configured MaxRoutingSlipHops cap of {maxHops}; slip rejected."); + } + } + + if (destinations.Count == 0) + { + return; + } + + var routeDelegate = RouteAsyncDelegateCache.GetOrAdd(messageType, BuildRouteAsyncDelegate); + await routeDelegate(bus, message, destinations, cancellationToken).ConfigureAwait(false); + } + + [MethodImpl(MethodImplOptions.AggressiveInlining)] + private static bool IsValidRoutingSlipDestination(string destination) => + RoutingSlipDestinationValidator.IsValid(destination); +} diff --git a/src/ServiceConnect/Services/Processors/MessageHandlerDescriptor.cs b/src/ServiceConnect/Services/Processors/MessageHandlerDescriptor.cs new file mode 100644 index 000000000..2c9433e8f --- /dev/null +++ b/src/ServiceConnect/Services/Processors/MessageHandlerDescriptor.cs @@ -0,0 +1,8 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Services.Processors; + +internal sealed record MessageHandlerDescriptor( + Type MessageType, + Type HandlerInterfaceType, + Func InvokeHandleAsync); diff --git a/src/ServiceConnect/Services/Processors/MessageHandlerRegistry.cs b/src/ServiceConnect/Services/Processors/MessageHandlerRegistry.cs new file mode 100644 index 000000000..515f44f56 --- /dev/null +++ b/src/ServiceConnect/Services/Processors/MessageHandlerRegistry.cs @@ -0,0 +1,139 @@ +using System.Collections.Concurrent; +using System.Collections.Frozen; +using System.Diagnostics.CodeAnalysis; +using System.Linq.Expressions; +using Microsoft.Extensions.Logging; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Services.Processors; + +internal sealed class MessageHandlerRegistry : IHandlerRegistry +{ + private readonly FrozenDictionary _knownDescriptors; + private readonly ConcurrentDictionary _lazyDescriptors = new(); + private readonly ILogger _logger; + + internal MessageHandlerRegistry( + IReadOnlyList handlerReferences, + ILogger logger) + { + ArgumentNullException.ThrowIfNull(handlerReferences); + _logger = logger ?? throw new ArgumentNullException(nameof(logger)); + + var builder = new Dictionary(); + foreach (var href in handlerReferences) + { + var messageHandlerInterface = FindMessageHandlerInterface(href.HandlerType, href.MessageType); + if (messageHandlerInterface == null) + { + // Record the message type as seen (null = no IMessageHandler) so + // the lazy-build path does not fabricate a descriptor for a type the + // application only handles via process-manager or stream handlers. + builder.TryAdd(href.MessageType, null); + continue; + } + + // The dispatch walk in HandlerProcessor stops at typeof(Message) and typeof(object), + // so a handler registered for either base type would silently never be invoked. + // Fail fast here so the misconfiguration surfaces at startup rather than at runtime. + // Use IFilter / IMessageProcessingMiddleware for catch-all message interception. + if (href.MessageType == typeof(Message) || href.MessageType == typeof(object)) + { + var baseTypeName = href.MessageType == typeof(Message) ? "IMessageHandler" : "IMessageHandler"; + throw new InvalidOperationException( + $"Handler '{href.HandlerType.FullName}' implements {baseTypeName}, which is the catch-all base type. " + + $"The dispatch walk stops before reaching {href.MessageType.Name}, so this handler would never be invoked. " + + $"Use IFilter or IMessageProcessingMiddleware for catch-all message interception."); + } + + // Duplicates are legitimate — multiple handler classes for one message type are allowed. + // Only one descriptor per message type (it describes the interface, not the instances). + // Overwrite a previous null (from a non-message-handler ref for the same type). + builder[href.MessageType] = BuildDescriptor(href.MessageType, messageHandlerInterface); + + if (_logger.IsEnabled(LogLevel.Debug)) + { + _logger.LogDebug( + "Registered message-handler descriptor: message={MessageType}, handler={HandlerType}", + href.MessageType.Name, href.HandlerType.Name); + } + } + + _knownDescriptors = builder.ToFrozenDictionary(); + } + + internal bool TryGetOrBuild(Type messageType, [NotNullWhen(true)] out MessageHandlerDescriptor? descriptor) + { + if (_knownDescriptors.TryGetValue(messageType, out descriptor)) + { + return descriptor != null; + } + + if (_lazyDescriptors.TryGetValue(messageType, out descriptor)) + { + return descriptor != null; + } + + // Build a descriptor for any type not seen at construction so users who register + // IMessageHandler directly in DI (without going through AddServiceConnect's + // scanner) still get their handlers invoked. The cache grows by one entry per + // distinct message type observed at runtime — bounded in practice by the bus's + // message-type catalogue. + descriptor = _lazyDescriptors.GetOrAdd(messageType, TryBuild); + return descriptor != null; + } + + private static MessageHandlerDescriptor? TryBuild(Type messageType) + { + if (messageType == typeof(Message) || messageType == typeof(object)) + { + return null; + } + + var handlerInterfaceType = typeof(IMessageHandler<>).MakeGenericType(messageType); + return BuildDescriptor(messageType, handlerInterfaceType); + } + + private static Type? FindMessageHandlerInterface(Type handlerType, Type messageType) + { + foreach (var interfaceType in handlerType.GetInterfaces()) + { + if (interfaceType.IsGenericType + && interfaceType.GetGenericTypeDefinition() == typeof(IMessageHandler<>) + && interfaceType.GetGenericArguments()[0] == messageType) + { + return interfaceType; + } + } + + return null; + } + + private static MessageHandlerDescriptor BuildDescriptor(Type messageType, Type handlerInterfaceType) + { + return new MessageHandlerDescriptor( + MessageType: messageType, + HandlerInterfaceType: handlerInterfaceType, + InvokeHandleAsync: CompileInvokeHandleAsync(handlerInterfaceType, messageType)); + } + + private static Func CompileInvokeHandleAsync( + Type handlerInterface, Type messageType) + { + var handlerParam = Expression.Parameter(typeof(object), "handler"); + var messageParam = Expression.Parameter(typeof(object), "message"); + var ctxParam = Expression.Parameter(typeof(IConsumeContext), "context"); + var ctParam = Expression.Parameter(typeof(CancellationToken), "ct"); + + var handlerCast = Expression.Convert(handlerParam, handlerInterface); + var messageCast = Expression.Convert(messageParam, messageType); + + var method = handlerInterface.GetMethod( + "HandleAsync", + [messageType, typeof(IConsumeContext), typeof(CancellationToken)])!; + var call = Expression.Call(handlerCast, method, messageCast, ctxParam, ctParam); + + return Expression.Lambda>( + call, handlerParam, messageParam, ctxParam, ctParam).Compile(); + } +} diff --git a/src/ServiceConnect/Services/Processors/ProcessManagerDescriptor.cs b/src/ServiceConnect/Services/Processors/ProcessManagerDescriptor.cs new file mode 100644 index 000000000..22f3086e2 --- /dev/null +++ b/src/ServiceConnect/Services/Processors/ProcessManagerDescriptor.cs @@ -0,0 +1,15 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Services.Processors; + +internal sealed record ProcessManagerDescriptor( + Type MessageType, + Type DataType, + Type ProcessHandlerInterfaceType, + Func CreateData, + Action SetCorrelationId, + Action ConfigureMapper, + Func> FindData, + Func ExtractData, + Func UpdateData, + Func InvokeHandleAsync); diff --git a/src/ServiceConnect/Services/Processors/ProcessManagerHandlerRegistry.cs b/src/ServiceConnect/Services/Processors/ProcessManagerHandlerRegistry.cs new file mode 100644 index 000000000..6307f6505 --- /dev/null +++ b/src/ServiceConnect/Services/Processors/ProcessManagerHandlerRegistry.cs @@ -0,0 +1,221 @@ +using System.Collections.Frozen; +using System.Diagnostics.CodeAnalysis; +using System.Linq.Expressions; +using System.Reflection; +using Microsoft.Extensions.Logging; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Services.Processors; + +internal sealed class ProcessManagerHandlerRegistry : IHandlerRegistry, IProcessManagerTypeRegistry +{ + // Built once at construction, never written to afterwards. FrozenDictionary gives + // ~20–40% faster lookups than Dictionary for the per-message hot path. + private readonly FrozenDictionary _descriptors; + + // Snapshot of distinct saga data types built at construction. Exposed via + // IProcessManagerTypeRegistry so persistence providers can pre-create per-saga + // structures (e.g. Mongo unique CorrelationId indexes) at startup. + private readonly IReadOnlyList _sagaDataTypes; + + internal ProcessManagerHandlerRegistry( + IReadOnlyList handlerReferences, + ILogger logger) + { + ArgumentNullException.ThrowIfNull(handlerReferences); + ArgumentNullException.ThrowIfNull(logger); + + // Dedup-by-HandlerType across the handlerReferences list. HandlerScanner emits + // one HandlerReference per (HandlerType, MessageType, InterfaceKind) — so a class + // implementing both IMessageHandler and IProcessHandler for the same + // message type produces TWO refs with the same HandlerType. Both refs look up the + // same IProcessHandler<,> interface below; the dedup-by-HandlerType branch makes + // the second a no-op so dual-interface handlers don't crash startup. Same mechanism + // protects against duplicate ScanAssemblies entries or an assembly enumerated twice. + var builder = new Dictionary(); + foreach (var href in handlerReferences) + { + Type? processHandlerInterface = null; + foreach (var interfaceType in href.HandlerType.GetInterfaces()) + { + if (interfaceType.IsGenericType + && interfaceType.GetGenericTypeDefinition() == typeof(IProcessHandler<,>) + && interfaceType.GetGenericArguments()[1] == href.MessageType) + { + if (processHandlerInterface is not null) + { + // A single class implementing IProcessHandler AND IProcessHandler + // for the same M is ambiguous: reflection order would silently pick one TData + // and drop the other. Refuse the configuration at startup — the only safe + // resolution is to split the two correlations into separate handler classes. + throw new InvalidOperationException( + $"Process-manager handler '{href.HandlerType.FullName}' implements multiple " + + $"IProcessHandler with different TData types " + + $"('{processHandlerInterface.GetGenericArguments()[0].FullName}' and '{interfaceType.GetGenericArguments()[0].FullName}'). " + + $"Each (HandlerType, MessageType) pair must correlate to exactly one saga " + + $"data type — split the handler into separate classes."); + } + processHandlerInterface = interfaceType; + } + } + + if (processHandlerInterface == null) + { + continue; + } + + if (builder.TryGetValue(href.MessageType, out var existing)) + { + if (existing.HandlerType == href.HandlerType) + { + continue; // identical (MessageType, HandlerType) pair — dedup silently + } + + throw new InvalidOperationException( + $"Duplicate process-manager handler registration for message type '{href.MessageType.FullName}'. Only one IProcessHandler may be registered per message type; found '{existing.HandlerType.FullName}' and '{href.HandlerType.FullName}'."); + } + + var dataType = processHandlerInterface.GetGenericArguments()[0]; + var descriptor = BuildDescriptor(href.MessageType, dataType, processHandlerInterface); + builder[href.MessageType] = (descriptor, href.HandlerType); + + if (logger.IsEnabled(LogLevel.Debug)) + { + logger.LogDebug( + "Registered process-manager descriptor: message={MessageType}, data={DataType}, handler={HandlerType}", + href.MessageType.Name, dataType.Name, href.HandlerType.Name); + } + } + + _descriptors = builder.ToDictionary(kvp => kvp.Key, kvp => kvp.Value.Descriptor).ToFrozenDictionary(); + _sagaDataTypes = [.. _descriptors.Values.Select(d => d.DataType).Distinct()]; + } + + internal bool TryGet(Type messageType, [NotNullWhen(true)] out ProcessManagerDescriptor? descriptor) + => _descriptors.TryGetValue(messageType, out descriptor); + + /// + public IEnumerable SagaDataTypes => _sagaDataTypes; + + internal static ProcessManagerDescriptor BuildDescriptor( + Type messageType, Type dataType, Type processHandlerInterfaceType) + { + var persistenceInterfaceType = typeof(IPersistenceData<>).MakeGenericType(dataType); + + return new ProcessManagerDescriptor( + MessageType: messageType, + DataType: dataType, + ProcessHandlerInterfaceType: processHandlerInterfaceType, + CreateData: CompileCreateData(dataType), + SetCorrelationId: CompileSetCorrelationId(), + ConfigureMapper: CompileConfigureMapper(processHandlerInterfaceType), + FindData: CompileFindData(dataType), + ExtractData: CompileExtractData(persistenceInterfaceType), + UpdateData: CompileUpdateData(dataType, persistenceInterfaceType), + InvokeHandleAsync: CompileInvokeHandleAsync(processHandlerInterfaceType, messageType, dataType)); + } + + private static Func CompileCreateData(Type dataType) + { + var newExpr = Expression.New(dataType); + var cast = Expression.Convert(newExpr, typeof(IProcessManagerData)); + return Expression.Lambda>(cast).Compile(); + } + + private static Action CompileSetCorrelationId() + { + var dataParam = Expression.Parameter(typeof(IProcessManagerData), "data"); + var guidParam = Expression.Parameter(typeof(Guid), "id"); + var prop = typeof(IProcessManagerData).GetProperty(nameof(IProcessManagerData.CorrelationId))!; + var assign = Expression.Assign(Expression.Property(dataParam, prop), guidParam); + return Expression.Lambda>(assign, dataParam, guidParam).Compile(); + } + + private static Action CompileConfigureMapper(Type handlerInterface) + { + var handlerParam = Expression.Parameter(typeof(object), "handler"); + var mapperParam = Expression.Parameter(typeof(IProcessManagerPropertyMapper), "mapper"); + var cast = Expression.Convert(handlerParam, handlerInterface); + var method = handlerInterface.GetMethod("ConfigureMapper")!; + var call = Expression.Call(cast, method, mapperParam); + return Expression.Lambda>(call, handlerParam, mapperParam).Compile(); + } + + private static Func> CompileFindData(Type dataType) + { + var closedFindData = typeof(IProcessManagerFinder).GetMethod(nameof(IProcessManagerFinder.FindDataAsync))! + .MakeGenericMethod(dataType); + + var finderParam = Expression.Parameter(typeof(IProcessManagerFinder), "finder"); + var mapperParam = Expression.Parameter(typeof(IProcessManagerPropertyMapper), "mapper"); + var messageParam = Expression.Parameter(typeof(Message), "message"); + var ctParam = Expression.Parameter(typeof(CancellationToken), "ct"); + + var call = Expression.Call(finderParam, closedFindData, mapperParam, messageParam, ctParam); + + // The call returns Task?>. We bridge to Task via a generic helper + // so the lambda's return type matches the delegate signature. + var helper = typeof(ProcessManagerHandlerRegistry) + .GetMethod(nameof(ToObjectTask), BindingFlags.NonPublic | BindingFlags.Static)! + .MakeGenericMethod(typeof(IPersistenceData<>).MakeGenericType(dataType)); + + var wrapped = Expression.Call(helper, call); + + return Expression.Lambda>>( + wrapped, finderParam, mapperParam, messageParam, ctParam).Compile(); + } + + private static async Task ToObjectTask(Task task) where T : class +#pragma warning disable VSTHRD003 // Task is owned by the caller; this is a generic bridging helper. + => await task.ConfigureAwait(false); +#pragma warning restore VSTHRD003 + + private static Func CompileExtractData(Type persistenceInterfaceType) + { + var persistenceParam = Expression.Parameter(typeof(object), "persistence"); + var cast = Expression.Convert(persistenceParam, persistenceInterfaceType); + var dataProp = persistenceInterfaceType.GetProperty("Data")!; + var access = Expression.Property(cast, dataProp); + var toObject = Expression.Convert(access, typeof(object)); + return Expression.Lambda>(toObject, persistenceParam).Compile(); + } + + private static Func CompileUpdateData( + Type dataType, Type persistenceInterfaceType) + { + var closedUpdate = typeof(IProcessManagerFinder).GetMethod(nameof(IProcessManagerFinder.UpdateDataAsync))! + .MakeGenericMethod(dataType); + + var finderParam = Expression.Parameter(typeof(IProcessManagerFinder), "finder"); + var persistenceParam = Expression.Parameter(typeof(object), "persistence"); + var ctParam = Expression.Parameter(typeof(CancellationToken), "ct"); + + var cast = Expression.Convert(persistenceParam, persistenceInterfaceType); + var call = Expression.Call(finderParam, closedUpdate, cast, ctParam); + + return Expression.Lambda>( + call, finderParam, persistenceParam, ctParam).Compile(); + } + + private static Func CompileInvokeHandleAsync( + Type handlerInterface, Type messageType, Type dataType) + { + var handlerParam = Expression.Parameter(typeof(object), "handler"); + var messageParam = Expression.Parameter(typeof(Message), "message"); + var dataParam = Expression.Parameter(typeof(object), "data"); + var ctxParam = Expression.Parameter(typeof(IConsumeContext), "context"); + var ctParam = Expression.Parameter(typeof(CancellationToken), "ct"); + + var handlerCast = Expression.Convert(handlerParam, handlerInterface); + var messageCast = Expression.Convert(messageParam, messageType); + var dataCast = Expression.Convert(dataParam, dataType); + + var method = handlerInterface.GetMethod( + "HandleAsync", + [messageType, dataType, typeof(IConsumeContext), typeof(CancellationToken)])!; + var call = Expression.Call(handlerCast, method, messageCast, dataCast, ctxParam, ctParam); + + return Expression.Lambda>( + call, handlerParam, messageParam, dataParam, ctxParam, ctParam).Compile(); + } +} diff --git a/src/ServiceConnect/Services/Processors/ProcessManagerProcessor.cs b/src/ServiceConnect/Services/Processors/ProcessManagerProcessor.cs new file mode 100644 index 000000000..d39e8f058 --- /dev/null +++ b/src/ServiceConnect/Services/Processors/ProcessManagerProcessor.cs @@ -0,0 +1,445 @@ +using System.Collections.Concurrent; +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Interfaces.Exceptions; +using ServiceConnect.Services; + +namespace ServiceConnect.Services.Processors; + +internal sealed class ProcessManagerProcessor( + ProcessManagerHandlerRegistry registry, + IConsumeScopeAccessor scopeAccessor, + Lazy bus, + ILogger logger, + IBusConfiguration busConfig, + IQueueConfiguration queueConfig, + ConsumeContextPool contextPool, + IConsumeContextAccessor consumeContextAccessor, + IReplyStatusRequestReplyManager? replyStatusRequestReplyManager = null) : IMessageProcessor +{ + private readonly IConsumeContextAccessor _consumeContextAccessor = consumeContextAccessor; + private readonly ConsumeContextPool _contextPool = contextPool; + + // Verdict is a function of the value's runtime type only; cache per-Type. + private static readonly System.Collections.Concurrent.ConcurrentDictionary _keyTypeValidationCache = new(); + + // Per-saga-key serialization. Two messages targeting the same saga that arrive + // concurrently must serialize through find→handle→persist or both observe + // FindData==null, both run the user's HandleAsync (with side effects: bus.Send, + // HTTP, etc.), and both call InsertDataAsync. The unique correlation index ensures + // only one insert wins, but the loser's handler has already run its side effects + // against a saga state that is later overwritten on redelivery. + // + // The lock key is the mapped property value the user's IProcessManagerPropertyMapper + // uses to find the saga (e.g. m => m.OrderId), NOT msg.CorrelationId — two messages + // can target the same saga with different message-CorrelationIds (the typical case + // when each outbound message has its own MessageId), so locking by msg.CorrelationId + // would not actually serialise the dispatch path. Composing the saga's data type into + // the key (alongside the mapped value) prevents distinct saga types that happen to + // use overlapping key spaces from blocking each other. + // + // Cleanup: each entry holds a refcount of in-flight callers under a monitor lock. + // The last caller to release decrements to zero, marks the entry removed, and + // detaches it from the dictionary. Concurrent acquirers re-check the Removed flag + // under the same lock and retry on a fresh entry, so an idle key never leaks a + // stale SemaphoreSlim. + private readonly ConcurrentDictionary _correlationLocks = new(); + + private readonly record struct SagaLockKey(Type DataType, object KeyValue) + { + public bool Equals(SagaLockKey other) + => DataType == other.DataType && Equals(KeyValue, other.KeyValue); + public override int GetHashCode() + => HashCode.Combine(DataType, KeyValue); + } + + private sealed class CorrelationLock + { + public readonly SemaphoreSlim Sem = new(1, 1); + public int Outstanding; + public bool Removed; + } + + public async Task ProcessAsync( + ReadOnlyMemory messageBytes, Type messageType, object? message, + IDictionary headers, Envelope envelope, + CancellationToken cancellationToken = default) + { + cancellationToken.ThrowIfCancellationRequested(); + if (message == null) + { + return ProcessResult.NotHandled; + } + + if (!registry.TryGet(messageType, out var descriptor)) + { + return ProcessResult.NotHandled; + } + + var scope = scopeAccessor.Current; + + var finder = scope.GetService(); + if (finder == null) + { + logger.LogWarning( + "IProcessManagerFinder not registered; cannot process process-manager message {MessageType}", + messageType.Name); + return ProcessResult.NotHandled; + } + + var handler = scope.GetService(descriptor.ProcessHandlerInterfaceType); + if (handler == null) + { + logger.LogWarning( + "Process-manager handler not registered in DI for interface {HandlerInterface}; cannot process message {MessageType}", + descriptor.ProcessHandlerInterfaceType.Name, messageType.Name); + return ProcessResult.NotHandled; + } + + // ConfigureMapper may read per-instance handler state, so build the mapper against + // the freshly-resolved handler each delivery rather than memoising one mapper. Wrap + // any user exception in a typed PersistenceException — without the wrap, a raw + // user-thrown exception would surface as the dispatch failure with no context, and + // the broker retry loop would keep redelivering the same poison message indefinitely. + var mapper = new DefaultProcessManagerPropertyMapper(); + try + { + descriptor.ConfigureMapper(handler, mapper); + } + catch (Exception ex) + { + throw new PersistenceException( + $"ConfigureMapper threw while building the property mapper for {descriptor.ProcessHandlerInterfaceType.Name} (message type '{messageType.FullName}'). " + + "ConfigureMapper must not throw — it is invoked once per delivery to build the saga-to-message property mapping. " + + "See the inner exception for the user-thrown failure.", + ex); + } + + // Run the find→invoke→update cycle exactly once per delivery. A previous version + // looped on ConcurrencyException, but every retry re-invoked the user's handler — + // any HTTP call, bus.Send, or other side-effect inside HandleAsync fired again. + // Letting the ConcurrencyException propagate hands the decision to the configured + // transport-level retry policy instead, which users can size against their tolerance + // for side-effect replay. + var msg = (Message)message; + var lockKey = BuildLockKey(descriptor, mapper, msg, messageType); + var entry = AcquireCorrelationLock(lockKey); + var semaphoreAcquired = false; + try + { + await entry.Sem.WaitAsync(cancellationToken).ConfigureAwait(false); + semaphoreAcquired = true; + await RunPipelineOnceAsync(scope, finder, descriptor, mapper, handler, msg, messageType, headers, cancellationToken).ConfigureAwait(false); + } + finally + { + // Refcount must be released even if WaitAsync threw before we got the + // semaphore, otherwise Outstanding leaks and the entry is never removed. + if (semaphoreAcquired) + { + entry.Sem.Release(); + } + ReleaseCorrelationLock(lockKey, entry); + } + return ProcessResult.Handled; + } + + // Builds the saga-scope lock key from the user's mapper. Picks the mapping for the + // exact message type, falling back to the base Message wildcard if present (mirrors + // the persistor's match order). When no mapping resolves a usable value (mapping + // misconfigured, MessageProp throws, or the value is null), fall back to msg.CorrelationId + // — the find/persist path will surface the misconfiguration as its own typed exception + // shortly afterwards, and per-delivery serialisation against ANY stable key is better + // than no serialisation at all. + private static SagaLockKey BuildLockKey( + ProcessManagerDescriptor descriptor, + DefaultProcessManagerPropertyMapper mapper, + Message msg, + Type messageType) + { + ProcessManagerToMessageMap? mapping = null; + ProcessManagerToMessageMap? fallback = null; + foreach (var m in mapper.Mappings) + { + if (m.MessageType == messageType) { mapping = m; break; } + if (fallback == null && m.MessageType == typeof(Message)) + { + fallback = m; + } + } + mapping ??= fallback; + + if (mapping is not null) + { + try + { + var value = mapping.MessageProp.Invoke(msg); + if (value is not null) + { + var valueType = value.GetType(); + var ok = _keyTypeValidationCache.GetOrAdd(valueType, IsValueEqualType); + if (!ok) + { + throw new InvalidOperationException( + $"Process-manager saga lock key for ({descriptor.DataType.Name}, {messageType.Name}) " + + $"resolves to type '{valueType.Name}', which compares by reference equality. The per-saga " + + "concurrency lock requires a value-equal key type — use string, Guid, a primitive, decimal, " + + "or a custom type that overrides Equals(object)."); + } + return new SagaLockKey(descriptor.DataType, value); + } + } + catch (Exception ex) when (ex is not InvalidOperationException) + { + // Fall through to fallback key; FindData will rethrow with a typed wrapper. + } + } + + // Fallback key when the user's mapping doesn't resolve. msg.CorrelationId is the + // only stable per-message identifier the framework can rely on from this surface + // (the wire MessageId lives in headers and isn't reachable here). When it's + // Guid.Empty — usually because the producer forgot to stamp CorrelationId — every + // empty-correlation message of the same saga DataType would otherwise key against + // (DataType, Guid.Empty), creating a global pseudo-lock that serialises unrelated + // sagas. Use a fresh Guid per-message in that case: the lock becomes effectively + // exclusive to this delivery, so unrelated empty-correlation messages run in + // parallel. The trade-off is that two redeliveries of the SAME empty-correlation + // message no longer share a lock — but the persistor's correlation-keyed find + // wouldn't have matched them anyway, so the lock was already meaningless. + var fallbackKey = msg.CorrelationId != Guid.Empty ? msg.CorrelationId : Guid.NewGuid(); + return new SagaLockKey(descriptor.DataType, fallbackKey); + } + + private CorrelationLock AcquireCorrelationLock(SagaLockKey key) + { + while (true) + { + var entry = _correlationLocks.GetOrAdd(key, static _ => new CorrelationLock()); + lock (entry) + { + if (!entry.Removed) + { + entry.Outstanding++; + return entry; + } + // The entry was removed between GetOrAdd and our lock; retry to either + // observe a freshly-added one or create a new entry of our own. + } + } + } + + private void ReleaseCorrelationLock(SagaLockKey key, CorrelationLock entry) + { + lock (entry) + { + entry.Outstanding--; + if (entry.Outstanding == 0) + { + // Last caller out: mark removed under the lock so any concurrent acquirer + // observes Removed=true on its recheck and retries with a fresh entry. + // TryRemove(KVP) only succeeds if the dict still maps to this exact entry, + // so a fresh entry installed by another thread (extremely unlikely under + // this lock, since GetOrAdd is atomic) is left untouched. + entry.Removed = true; + _correlationLocks.TryRemove(new KeyValuePair(key, entry)); + } + } + } + + private async Task RunPipelineOnceAsync( + IServiceProvider scope, + IProcessManagerFinder finder, + ProcessManagerDescriptor descriptor, + IProcessManagerPropertyMapper mapper, + object handler, + Message message, + Type messageType, + IDictionary headers, + CancellationToken cancellationToken) + { + var persistenceData = await descriptor.FindData(finder, mapper, message, cancellationToken).ConfigureAwait(false); + + bool isNew = persistenceData == null; + object data; + if (isNew) + { + var newData = descriptor.CreateData(); + descriptor.SetCorrelationId(newData, message.CorrelationId); + data = newData; + } + else + { + data = descriptor.ExtractData(persistenceData!); + } + + var trustQuery = replyStatusRequestReplyManager + ?? scope.GetService() + ?? scope.GetService() as IReplyStatusRequestReplyManager; + + var context = _contextPool.Rent( + bus.Value, + headers, + queueConfig, + busConfig, + trustQuery, + cancellationToken); + bool handlerThrew = false; + try + { + try + { + using (_consumeContextAccessor.Push(context.Headers)) + { + await descriptor.InvokeHandleAsync(handler, message, data, context, cancellationToken).ConfigureAwait(false); + } + } + catch (OperationCanceledException) when (cancellationToken.IsCancellationRequested) + { + // Cooperative shutdown: the dispatcher's cancellation token fired and the + // handler honoured it. Don't try to persist on cancel — the cancellation + // token would also abort the persist call, and the redelivery on resumption + // will re-run the handler from the previously-persisted state. + throw; + } + catch (Exception ex) + { + logger.LogError(ex, "Process-manager handler threw for {MessageType}; attempting best-effort persist before rethrow", messageType.Name); + handlerThrew = true; + try + { + await PersistAsync(finder, descriptor, mapper, message, persistenceData, data, isNew, cancellationToken).ConfigureAwait(false); + } + catch (OperationCanceledException) when (cancellationToken.IsCancellationRequested) + { + // Cancellation during the best-effort persist; suppress and let the + // original handler exception propagate. Mutation may not be durable; + // the redelivery path still recovers — it just re-runs from stale state. + } + catch (ConcurrencyException raceEx) + { + // Two distinct shapes reach this catch: + // (a) isNew=true: a peer worker won the insert race for a never-before-seen + // correlation id. Our handler ran against fresh CreateData() state; the + // winner's row is durable; our local mutations are not. + // (b) isNew=false: the row exists and a peer updated it to a newer version + // between our FindData and our UpdateData. Our handler ran against + // version N; the store now holds version N+1 (or later). + // Both shapes resolve identically — redelivery re-finds the durable state and + // re-runs the handler from it, idempotency invariants on the handler permitting. + // Log the actual shape so operators don't chase the wrong race. + if (isNew) + { + logger.LogWarning(raceEx, + "Best-effort persist for {MessageType}: cross-process new-saga insert race lost. The peer's insert won; our handler mutations are not durable. Redelivery will re-run from the durable state.", + messageType.Name); + } + else + { + logger.LogWarning(raceEx, + "Best-effort persist for {MessageType}: optimistic-concurrency conflict on update — a peer updated the saga to a newer version mid-handler. Our handler mutations are not durable. Redelivery will re-find the current version and re-run the handler.", + messageType.Name); + } + } + catch (Exception persistEx) + { + logger.LogError(persistEx, + "Best-effort persist after handler failure also failed for {MessageType}; original exception will be rethrown", + messageType.Name); + } + throw; + } + } + finally + { + context.Release(); + } + + // Success path: handler returned cleanly. Persist normally; the catch above already + // handled the failure path so this only runs when handlerThrew is false. + if (!handlerThrew) + { + await PersistAsync(finder, descriptor, mapper, message, persistenceData, data, isNew, cancellationToken).ConfigureAwait(false); + } + } + + /// + /// Returns true when participates in object.Equals by value + /// rather than reference. Value types, strings, and reference types that override + /// Equals(object) qualify. Arrays and plain reference types do not. + /// + internal static bool IsValueEqualType(Type t) + { + if (t.IsValueType) { return true; } // structs, primitives, Guid, decimal, enums, DateTime + if (t == typeof(string)) { return true; } // string overrides Equals + if (t.IsArray) { return false; } // arrays use reference equality + var current = t; + while (current != null && current != typeof(object)) + { + var m = current.GetMethod( + nameof(Equals), + System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.DeclaredOnly, + binder: null, + types: [typeof(object)], + modifiers: null); + if (m != null && !m.IsAbstract) { return true; } + current = current.BaseType; + } + return false; + } + + private static async Task PersistAsync( + IProcessManagerFinder finder, + ProcessManagerDescriptor descriptor, + IProcessManagerPropertyMapper mapper, + Message message, + object? persistenceData, + object data, + bool isNew, + CancellationToken cancellationToken) + { + if (isNew) + { + await finder.InsertDataAsync((IProcessManagerData)data, cancellationToken).ConfigureAwait(false); + return; + } + + // Handler-driven physical completion: the documented saga-completion pattern + // (IProcessManagerFinder.DeleteDataAsync xmldoc) lets a handler resolve the + // finder from DI and delete the saga's row mid-handler. If the handler did + // so and then returned cleanly, the row is gone — UpdateData against the + // captured persistenceData would throw ConcurrencyException, message goes to + // retry, redelivery sees a missing saga and resurrects it via CreateData(). + // Re-find here so a handler that completed the saga sees its decision respected: + // - re-find returns null: handler deleted; skip the update; saga stays completed. + // - re-find returns non-null AND Version moved: handler called UpdateData itself. + // Re-running PersistAsync's UpdateData against the captured (now-stale) Version + // would race-fail as ConcurrencyException → broker NACK → handler re-runs with + // all side effects replayed. Skip; the handler's own UpdateData call already + // committed the intended state. + // - re-find returns non-null AND Version unchanged: handler did not persist; + // proceed with UpdateData, which still uses the original captured Version so + // concurrent peer updates race-fail as ConcurrencyException (the intended + // optimistic-concurrency path). + var freshFind = await descriptor.FindData(finder, mapper, message, cancellationToken).ConfigureAwait(false); + if (freshFind is null) + { + return; + } + + // Cast both wrappers to IVersioned for the comparison. The persistor returns + // typed MemoryData / MongoDbData; both implement IVersioned per + // IProcessManagerFinder's contract. A version mismatch indicates handler-driven + // persistence happened during dispatch — the framework's optimistic-concurrency + // update would now race-fail; skip to preserve handler side-effect idempotence. + if (persistenceData is IVersioned originalVersioned + && freshFind is IVersioned currentVersioned + && originalVersioned.Version != currentVersioned.Version) + { + return; + } + + await descriptor.UpdateData(finder, persistenceData!, cancellationToken).ConfigureAwait(false); + } +} diff --git a/src/ServiceConnect/Services/Processors/ReplyProcessor.cs b/src/ServiceConnect/Services/Processors/ReplyProcessor.cs new file mode 100644 index 000000000..e76b985b5 --- /dev/null +++ b/src/ServiceConnect/Services/Processors/ReplyProcessor.cs @@ -0,0 +1,43 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Services.Processors; + +internal sealed class ReplyProcessor(IReplyStatusRequestReplyManager? replyManager) : IMessageProcessor +{ + // Cache the two result tasks so enum-boxing allocation doesn't happen per message. + private static readonly Task NotHandledTask = Task.FromResult(ProcessResult.NotHandled); + private static readonly Task HandledTask = Task.FromResult(ProcessResult.Handled); + + public bool RunBeforeDeserialization => true; + + public Task ProcessAsync( + ReadOnlyMemory messageBytes, Type messageType, object? message, + IDictionary headers, Envelope envelope, + CancellationToken cancellationToken = default) + { + cancellationToken.ThrowIfCancellationRequested(); + if (!headers.TryGetValue(HeaderKeys.ResponseMessageId, out var responseMessageIdRaw)) + { + return NotHandledTask; + } + + var responseMessageId = HeaderDecoder.Decode(responseMessageIdRaw); + + if (string.IsNullOrEmpty(responseMessageId)) + { + return NotHandledTask; + } + + if (replyManager == null) + { + return NotHandledTask; + } + + if (replyManager.TryProcessReply(responseMessageId, messageBytes, messageType)) + { + return HandledTask; + } + + return NotHandledTask; + } +} diff --git a/src/ServiceConnect/Services/Processors/StreamHandlerDescriptor.cs b/src/ServiceConnect/Services/Processors/StreamHandlerDescriptor.cs new file mode 100644 index 000000000..cd424f071 --- /dev/null +++ b/src/ServiceConnect/Services/Processors/StreamHandlerDescriptor.cs @@ -0,0 +1,8 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Services.Processors; + +internal sealed record StreamHandlerDescriptor( + Type MessageType, + Type HandlerInterfaceType, + Func InvokeExecuteAsync); diff --git a/src/ServiceConnect/Services/Processors/StreamHandlerRegistry.cs b/src/ServiceConnect/Services/Processors/StreamHandlerRegistry.cs new file mode 100644 index 000000000..78f9c86e9 --- /dev/null +++ b/src/ServiceConnect/Services/Processors/StreamHandlerRegistry.cs @@ -0,0 +1,101 @@ +using System.Collections.Frozen; +using System.Diagnostics.CodeAnalysis; +using System.Linq.Expressions; +using Microsoft.Extensions.Logging; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Services.Processors; + +internal sealed class StreamHandlerRegistry : IHandlerRegistry +{ + // Built once at construction; FrozenDictionary for read-heavy lookup. + private readonly FrozenDictionary _descriptors; + + internal StreamHandlerRegistry( + IReadOnlyList handlerReferences, + ILogger logger) + { + ArgumentNullException.ThrowIfNull(handlerReferences); + ArgumentNullException.ThrowIfNull(logger); + + var builder = new Dictionary(); + foreach (var href in handlerReferences) + { + var streamInterface = FindStreamHandlerInterface(href.HandlerType, href.MessageType); + if (streamInterface == null) + { + continue; + } + + if (builder.TryGetValue(href.MessageType, out var existing)) + { + if (existing.HandlerType == href.HandlerType) + { + continue; // identical (MessageType, HandlerType) pair registered twice — dedupe silently + } + + throw new InvalidOperationException( + $"Duplicate stream-handler registration for message type '{href.MessageType.FullName}'. " + + $"Only one IStreamHandler may be registered per message type; found '{existing.HandlerType.FullName}' and '{href.HandlerType.FullName}'."); + } + + var descriptor = BuildDescriptor(href.MessageType, streamInterface); + builder[href.MessageType] = (descriptor, href.HandlerType); + + if (logger.IsEnabled(LogLevel.Debug)) + { + logger.LogDebug( + "Registered stream-handler descriptor: message={MessageType}, handler={HandlerType}", + href.MessageType.Name, href.HandlerType.Name); + } + } + + _descriptors = builder.ToDictionary(kvp => kvp.Key, kvp => kvp.Value.Descriptor).ToFrozenDictionary(); + } + + internal bool TryGet(Type messageType, [NotNullWhen(true)] out StreamHandlerDescriptor? descriptor) + => _descriptors.TryGetValue(messageType, out descriptor); + + private static Type? FindStreamHandlerInterface(Type handlerType, Type messageType) + { + foreach (var interfaceType in handlerType.GetInterfaces()) + { + if (interfaceType.IsGenericType + && interfaceType.GetGenericTypeDefinition() == typeof(IStreamHandler<>) + && interfaceType.GetGenericArguments()[0] == messageType) + { + return interfaceType; + } + } + + return null; + } + + private static StreamHandlerDescriptor BuildDescriptor(Type messageType, Type handlerInterfaceType) + { + return new StreamHandlerDescriptor( + MessageType: messageType, + HandlerInterfaceType: handlerInterfaceType, + InvokeExecuteAsync: CompileInvokeExecuteAsync(handlerInterfaceType, messageType)); + } + + private static Func CompileInvokeExecuteAsync( + Type handlerInterface, Type messageType) + { + var handlerParam = Expression.Parameter(typeof(object), "handler"); + var messageParam = Expression.Parameter(typeof(object), "message"); + var streamParam = Expression.Parameter(typeof(IMessageBusReadStream), "stream"); + var ctParam = Expression.Parameter(typeof(CancellationToken), "cancellationToken"); + + var handlerCast = Expression.Convert(handlerParam, handlerInterface); + var messageCast = Expression.Convert(messageParam, messageType); + + var method = handlerInterface.GetMethod( + "ExecuteAsync", + [messageType, typeof(IMessageBusReadStream), typeof(CancellationToken)])!; + var call = Expression.Call(handlerCast, method, messageCast, streamParam, ctParam); + + return Expression.Lambda>( + call, handlerParam, messageParam, streamParam, ctParam).Compile(); + } +} diff --git a/src/ServiceConnect/Services/Processors/StreamProcessor.cs b/src/ServiceConnect/Services/Processors/StreamProcessor.cs new file mode 100644 index 000000000..88a784bf5 --- /dev/null +++ b/src/ServiceConnect/Services/Processors/StreamProcessor.cs @@ -0,0 +1,505 @@ +using System.Collections.Concurrent; +using System.Globalization; +using Microsoft.Extensions.DependencyInjection; +using Microsoft.Extensions.Logging; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; + +namespace ServiceConnect.Services.Processors; + +internal sealed class StreamProcessor : IMessageProcessor, IAsyncDisposable +{ + private readonly IConsumeScopeAccessor _scopeAccessor; + private readonly ILogger _logger; + private readonly IMessageTypeRegistry _typeRegistry; + private readonly StreamHandlerRegistry _streamHandlerRegistry; + private readonly IMessageSerializer _serializer; + private readonly TimeProvider _timeProvider; + private readonly long _maxStreamSizeBytes; + private readonly int _maxActiveStreams; + private readonly ConcurrentDictionary _activeStreams = new(StringComparer.Ordinal); + // Tracks admitted stream count separately so admission can be gated with Interlocked + // without relying on ConcurrentDictionary.Count (which is accurate but does not compose + // atomically with insertion). The counter is incremented before GetOrAdd is called; if + // the count exceeds the cap we reject without touching the dictionary. If two threads + // race for the same absent key, the GetOrAdd loser decrements its bump. The counter is + // also decremented on every eviction, completion, or fault path, keeping it in sync + // with actual dictionary membership. + private int _streamCount; + private int _disposed; + private readonly ITimer _cleanupTimer; + /// + /// Maximum time a partial stream may sit without new packets before it is evicted. + /// Tuned to balance memory held by stale streams against transient network stalls. + /// + private static readonly TimeSpan StreamTimeout = TimeSpan.FromMinutes(5); + /// Interval at which the sweeper runs to evict stale partial streams. + private static readonly TimeSpan StreamCleanupInterval = TimeSpan.FromMinutes(1); + /// + /// Upper bound on LastPacketNumber to prevent attacker-controlled allocation + /// of unbounded packet-count state. + /// + private const long MaxPacketNumber = 100_000; + + // Cache completed Task instances to avoid per-call allocations. + private static readonly Task NotHandledTask = Task.FromResult(ProcessResult.NotHandled); + private static readonly Task HandledTask = Task.FromResult(ProcessResult.Handled); + + public StreamProcessor( + IConsumeScopeAccessor scopeAccessor, + ILogger logger, + IMessageTypeRegistry typeRegistry, + StreamHandlerRegistry streamHandlerRegistry, + IMessageSerializer serializer, + TimeProvider timeProvider, + IBusConfiguration busConfig) + { + _scopeAccessor = scopeAccessor ?? throw new ArgumentNullException(nameof(scopeAccessor)); + _logger = logger; + _typeRegistry = typeRegistry ?? throw new ArgumentNullException(nameof(typeRegistry)); + _streamHandlerRegistry = streamHandlerRegistry ?? throw new ArgumentNullException(nameof(streamHandlerRegistry)); + _serializer = serializer ?? throw new ArgumentNullException(nameof(serializer)); + _timeProvider = timeProvider ?? throw new ArgumentNullException(nameof(timeProvider)); + // Snapshot the per-stream byte cap and active-stream slot cap at construction + // time so each fresh MessageBusReadStream and admission check uses the configured + // ceilings without re-reading IBusConfiguration on every packet. The configuration + // is frozen by the time the processor is resolved from DI, so the snapshots are + // final. The active-stream cap defends against DoS via stream-slot exhaustion. + ArgumentNullException.ThrowIfNull(busConfig); + _maxStreamSizeBytes = busConfig.MaxStreamSizeBytes; + _maxActiveStreams = busConfig.MaxActiveStreams; + _cleanupTimer = _timeProvider.CreateTimer(_ => EvictStaleStreams(), null, StreamCleanupInterval, StreamCleanupInterval); + } + + public bool RunBeforeDeserialization => true; + + // Exposed for unit-test observability; not part of the public API. + internal int ActiveStreamCount => _activeStreams.Count; + + public Task ProcessAsync( + ReadOnlyMemory messageBytes, Type messageType, object? message, + IDictionary headers, Envelope envelope, + CancellationToken cancellationToken = default) + { + cancellationToken.ThrowIfCancellationRequested(); + // Reject incoming packets after disposal; avoids unbounded dictionary growth + // from late-arriving messages that race the DisposeAsync caller. + if (Volatile.Read(ref _disposed) != 0) + { + return NotHandledTask; + } + + if (!headers.TryGetValue(HeaderKeys.MessageType, out var msgTypeRaw)) + { + return NotHandledTask; + } + + var msgType = HeaderDecoder.Decode(msgTypeRaw); + if (!string.Equals(msgType, HeaderKeys.ByteStream, StringComparison.Ordinal)) + { + return NotHandledTask; + } + + if (!headers.TryGetValue(HeaderKeys.SequenceId, out var seqIdRaw)) + { + return NotHandledTask; + } + + var sequenceId = HeaderDecoder.Decode(seqIdRaw)!; + + // SequenceId must be a valid GUID to prevent arbitrary-string abuse. + if (!Guid.TryParse(sequenceId, out _)) + { + _logger.LogWarning("Stream packet has non-GUID SequenceId '{Value}'; discarding", sequenceId); + return NotHandledTask; + } + + if (!headers.TryGetValue(HeaderKeys.PacketNumber, out var pnRaw)) + { + return NotHandledTask; + } + + var pnString = HeaderDecoder.Decode(pnRaw); + if (!long.TryParse(pnString, NumberStyles.Integer, CultureInfo.InvariantCulture, out var packetNumber)) + { + _logger.LogWarning("Stream packet has invalid PacketNumber header '{Value}'; discarding", pnString); + return HandledTask; // Handled to prevent infinite requeue + } + + // Bound packetNumber to the same MaxPacketNumber ceiling enforced on LastPacketNumber. + // Without this, an attacker-controlled header `PacketNumber: long.MaxValue` lands in + // MessageBusReadStream's packet dictionary at a sparse key, defeating the contiguous- + // fill design and forcing a future Read() to iterate from 0 to LastPacketNumber. The + // total-size cap still bounds memory per stream, but per-stream slot keying becomes + // arbitrary. Reject negatives for the same reason — MessageBusReadStream addresses + // packets via a non-negative long index. + if (packetNumber is < 0 or > MaxPacketNumber) + { + _logger.LogWarning("Stream packet PacketNumber {Value} out of range (0..{Max}); discarding", packetNumber, MaxPacketNumber); + return HandledTask; + } + + // Admission gate: the Interlocked counter is the source of truth. We only call + // GetOrAdd after a successful counter bump, eliminating the residual race where a + // speculative GetOrAdd → TryRemove rollback briefly admitted a rejected entry that + // a concurrent packet for the same sequenceId could observe as live. + // + // If two threads race for the same absent sequenceId, both increment the counter; + // the loser of GetOrAdd decrements its bump. No rejected state ever appears in the + // dictionary — the counter gate fires before any insertion is attempted. + if (!_activeStreams.TryGetValue(sequenceId, out _)) + { + var newCount = Interlocked.Increment(ref _streamCount); + if (newCount > _maxActiveStreams) + { + Interlocked.Decrement(ref _streamCount); + _logger.LogWarning("Active stream cap {Cap} reached; rejecting new stream {SequenceId}", _maxActiveStreams, sequenceId); + return NotHandledTask; + } + + var fresh = new ActiveStreamState(new MessageBusReadStream(sequenceId, _maxStreamSizeBytes), _timeProvider.GetUtcNow()); + var actual = _activeStreams.GetOrAdd(sequenceId, fresh); + if (!ReferenceEquals(actual, fresh)) + { + // Lost the absent-key race to another thread that admitted first; + // roll back our slot reservation since we didn't materialise a new entry. + Interlocked.Decrement(ref _streamCount); + } + } + + // Touch BEFORE Write: a Write-then-touch order would let EvictStaleStreams TryRemove + // race between Stream.Write and the CAS, leaving packet bytes committed to a + // now-orphaned MessageBusReadStream with no lookup path. Touch first, bail if + // evicted, Write only on a freshly-touched entry. + ActiveStreamState state; + try + { + // Touch: replace the dict entry with a new ActiveStreamState carrying a fresh + // LastSeenUtc. EvictStaleStreams' TryRemove(KVP) compares records by structural + // equality; mutating LastSeenUtc in place would leave the record structurally + // equal and defeat that check, which is why we replace the entry instead. + while (true) + { + if (!_activeStreams.TryGetValue(sequenceId, out var current)) + { + // Eviction or completion-dispatch removed the entry between admission + // and our touch. Idempotent ack — broker redelivery re-admits a fresh + // entry on the next packet. Critically, no Stream.Write yet, so no + // bytes are committed to an orphaned MessageBusReadStream. + return HandledTask; + } + var refreshed = current with { LastSeenUtc = _timeProvider.GetUtcNow() }; + if (_activeStreams.TryUpdate(sequenceId, refreshed, current)) + { + state = refreshed; + break; + } + } + + // Validate the LastPacketNumber header BEFORE writing any bytes; an + // attacker-controlled header above the cap or unparseable must reject the + // packet without committing bytes. On rejection evict the active stream + // entry so the slot reclaims immediately rather than waiting for the + // 5-minute eviction sweep. + if (!TryReadLastPacketNumber(headers, sequenceId, out var validatedLastPacketNumber)) + { + EvictActiveStream(sequenceId); + return HandledTask; + } + + // Write commits packet bytes only after we hold a touched entry. A late + // eviction between this CAS and the Write is bounded — bytes still land in + // a stream instance that was indexed at touch time, and the eviction sweep's + // next pass skips this entry because LastSeenUtc was just refreshed. + state.Stream.Write(messageBytes, packetNumber); + + if (validatedLastPacketNumber is { } lpn) + { + state.Stream.SetLastPacketNumber(lpn); + } + } + catch (Exception ex) when (ex is not OperationCanceledException) + { + // A poison packet wedges the sequence — successive packets keep re-throwing + // on the same violated invariant (size cap, packet > LastPacketNumber, or + // LastPacketNumber re-set with a different value). Drop the entry so the + // next packet starts a fresh sequence rather than waiting for the 5-minute + // sweep. + _logger.LogWarning(ex, + "Stream {SequenceId} faulted on packet {PacketNumber}; evicting partial state", + sequenceId, packetNumber); + // Key-only remove (not KVP): a concurrent touch may have replaced the dict entry + // since our GetOrAdd, but the underlying MessageBusReadStream is the same broken + // instance (the record's Stream property carries forward across `with`). The + // sequence is poisoned regardless of which state instance is currently in the + // dict, so we evict by key rather than by reference. + if (_activeStreams.TryRemove(sequenceId, out _)) + { + Interlocked.Decrement(ref _streamCount); + } + + return HandledTask; + } + + if (state.Stream.IsComplete()) + { + return TryDispatchCompletedStream(state, sequenceId, headers, cancellationToken); + } + + return HandledTask; + } + + // Resolves headers/handler, claims dispatch via CAS, and invokes the handler. Split + // out of ProcessAsync to keep that method under the analyzer line-count threshold; + // the dispatch lifecycle (poison-evict, claim, throw-clear-flag, success-remove) is + // its own concern and is easier to reason about in isolation. + private Task TryDispatchCompletedStream( + ActiveStreamState state, + string sequenceId, + IDictionary headers, + CancellationToken cancellationToken) + { + // Resolve headers and handler BEFORE claiming dispatch. Failures here are poison + // (no handler registered, type resolution failed) — evict and idempotent-ack so + // successive packets / redeliveries don't re-buffer the same broken stream. + if (!headers.TryGetValue(HeaderKeys.FullTypeName, out var ftnRaw)) + { + _logger.LogWarning("Completed stream {SequenceId} missing FullTypeName header", sequenceId); + EvictActiveStream(sequenceId); + return HandledTask; + } + + var fullTypeName = HeaderDecoder.Decode(ftnRaw); + if (!_typeRegistry.TryResolve(fullTypeName!, out var resolvedType)) + { + _logger.LogWarning("Unregistered type '{TypeName}' for completed stream. Rejecting", fullTypeName); + EvictActiveStream(sequenceId); + return HandledTask; + } + + if (!_streamHandlerRegistry.TryGet(resolvedType, out var descriptor)) + { + _logger.LogWarning("No IStreamHandler registered for {MessageType}", resolvedType.FullName); + EvictActiveStream(sequenceId); + return HandledTask; + } + + var handler = _scopeAccessor.Current.GetService(descriptor.HandlerInterfaceType); + if (handler == null) + { + _logger.LogWarning("No IStreamHandler registered for {MessageType}", resolvedType.FullName); + EvictActiveStream(sequenceId); + return HandledTask; + } + + // Claim dispatch via CAS on DispatchInFlight. Two concurrent final-packet + // deliveries (e.g. broker redelivery via connection recovery while the original + // is still running) race here; the loser idempotent-acks. We refresh + // LastSeenUtc on the claim so the eviction sweep cannot reclaim the entry while + // a long-running handler holds it — the sweep also skips DispatchInFlight=true + // entries explicitly, this is belt-and-braces for the sweep's value snapshot. + if (state.DispatchInFlight) + { + return HandledTask; + } + + var inFlight = state with { DispatchInFlight = true, LastSeenUtc = _timeProvider.GetUtcNow() }; + if (!_activeStreams.TryUpdate(sequenceId, inFlight, state)) + { + // Lost CAS: a concurrent touch or dispatch claim changed the entry. The + // winner is responsible for the dispatch; we idempotent-ack. + return HandledTask; + } + + // The serializer's ReadOnlySequence overload reads across segments via + // Utf8JsonReader without flattening — keeps the streaming path zero-copy. + var assembledSequence = state.Stream.ReadSequence(); + var originalMessage = _serializer.Deserialize(in assembledSequence, resolvedType); + + return InvokeHandlerAsync(descriptor, handler, originalMessage!, state.Stream, sequenceId, cancellationToken); + } + + private void EvictStaleStreams() + { + var cutoff = _timeProvider.GetUtcNow() - StreamTimeout; + foreach (var kvp in _activeStreams) + { + // Skip entries whose handler is actively dispatching: those are not stale + // partial streams, they're complete streams with an in-flight handler, and the + // dispatch path is the only writer that should remove them (on success) or + // clear the flag (on throw, to allow redelivery). + if (kvp.Value.DispatchInFlight) + { + continue; + } + if (kvp.Value.LastSeenUtc < cutoff) + { + if (_activeStreams.TryRemove(kvp)) + { + Interlocked.Decrement(ref _streamCount); + _logger.LogWarning("Evicted incomplete stream {SequenceId} after timeout", kvp.Key); + } + } + } + } + + /// + /// Reads and validates the LastPacketNumber header. Returns + /// when the header is present but unparseable or above ; + /// the caller treats false as a rejection signal and evicts the stream entry. Returns + /// when the header is absent (=null) or + /// successfully parsed (=parsed value). + /// + private bool TryReadLastPacketNumber(IDictionary headers, string sequenceId, out long? value) + { + value = null; + if (!headers.TryGetValue(HeaderKeys.LastPacketNumber, out var lpnRaw)) + { + return true; + } + + var lpnString = HeaderDecoder.Decode(lpnRaw); + if (!long.TryParse(lpnString, NumberStyles.Integer, CultureInfo.InvariantCulture, out var lastPacketNumber)) + { + _logger.LogWarning("Stream packet has invalid LastPacketNumber header '{Value}'; discarding", lpnString); + return false; + } + + if (lastPacketNumber > MaxPacketNumber) + { + _logger.LogWarning("Stream {SequenceId} LastPacketNumber {Value} exceeds maximum {Max}; discarding", sequenceId, lastPacketNumber, MaxPacketNumber); + return false; + } + + value = lastPacketNumber; + return true; + } + + /// + /// Removes the active-stream entry for and decrements the + /// admission counter so the slot is reclaimed for new streams immediately. Idempotent — + /// a no-op if the entry was already removed. + /// + private void EvictActiveStream(string sequenceId) + { + if (_activeStreams.TryRemove(sequenceId, out _)) + { + Interlocked.Decrement(ref _streamCount); + } + } + + private async Task InvokeHandlerAsync( + StreamHandlerDescriptor descriptor, + object handler, + object originalMessage, + IMessageBusReadStream stream, + string sequenceId, + CancellationToken cancellationToken) + { + cancellationToken.ThrowIfCancellationRequested(); + try + { + await descriptor.InvokeExecuteAsync(handler, originalMessage, stream, cancellationToken).ConfigureAwait(false); + } + catch (OperationCanceledException) when (cancellationToken.IsCancellationRequested) + { + // Caller cancellation: clear the dispatch flag so a fresh dispatch can + // retry the stream against the already-assembled prior packets, then + // rethrow with the caller's token. The broker will redeliver the final + // packet; we do not lose the assembled state. + ClearDispatchFlag(sequenceId); + cancellationToken.ThrowIfCancellationRequested(); + throw; // unreachable but keeps the compiler happy + } + catch (OperationCanceledException ex) + { + // OCE that the caller's CT did NOT request — almost always a handler's + // own linked CTS firing. Treat as a handler failure: log, clear the + // dispatch flag, and rethrow with the caller's token so the dispatch + // pipeline's `when (cancellationToken.IsCancellationRequested)` gate + // evaluates correctly. Rethrowing the original would carry the handler's + // unrelated token; the downstream metrics pipeline gates cancelled- + // classification on the caller's CT, so token identity matters. + _logger.LogError(ex, + "Stream handler {HandlerType} threw OperationCanceledException with an unrelated CT for stream {SequenceId}", + handler.GetType().FullName, sequenceId); + ClearDispatchFlag(sequenceId); + throw new OperationCanceledException(ex.Message, ex, cancellationToken); + } + catch (Exception ex) + { + // Handler threw — the broker redelivers the final packet. Leave the entry in + // place so the redelivery re-invokes the handler against the already-assembled + // stream rather than starting over with only the final packet (which would be + // unrecoverable data loss). Clear the in-flight flag so the next dispatch can + // claim. The eviction sweep skips DispatchInFlight=true entries, and we + // refreshed LastSeenUtc at claim time, so the entry has another StreamTimeout + // window after this throw before the sweep can reclaim it. + _logger.LogError(ex, + "Stream handler {HandlerType} threw for stream {SequenceId}; clearing dispatch flag for redelivery", + handler.GetType().FullName, sequenceId); + ClearDispatchFlag(sequenceId); + throw; + } + + // Handler succeeded — remove the entry. Key-based TryRemove (not value-based) + // because a late packet that touched the entry during handler execution refreshed + // LastSeenUtc, producing a different ActiveStreamState record; a value-comparing + // remove would miss that and leak the entry / counter slot. Touch preserves + // DispatchInFlight=true (record-copy), so the eviction sweep already skipped this + // entry, and the only writer that removes is this success path — making key-based + // removal safe from double-decrement. + if (_activeStreams.TryRemove(sequenceId, out _)) + { + Interlocked.Decrement(ref _streamCount); + } + return ProcessResult.Handled; + } + + // Best-effort clear of the DispatchInFlight flag after handler cancellation or throw. + // Loops to absorb concurrent touch updates that preserve DispatchInFlight via record- + // copy. A concurrent eviction (the sweep skips DispatchInFlight=true entries, but a + // disposal could clear the dictionary) means TryGetValue returns false and we no-op. + private void ClearDispatchFlag(string sequenceId) + { + while (_activeStreams.TryGetValue(sequenceId, out var current)) + { + if (!current.DispatchInFlight) + { + return; + } + var cleared = current with { DispatchInFlight = false }; + if (_activeStreams.TryUpdate(sequenceId, cleared, current)) + { + return; + } + } + } + + public async ValueTask DisposeAsync() + { + if (Interlocked.Exchange(ref _disposed, 1) != 0) + { + return; + } + + await _cleanupTimer.DisposeAsync().ConfigureAwait(false); + + // Drain in-flight stream entries; MessageBusReadStream does not implement + // IDisposable, so clearing the dictionary is sufficient for GC reclamation. + _activeStreams.Clear(); + Interlocked.Exchange(ref _streamCount, 0); + } + + // Immutable so updates require a new instance via ConcurrentDictionary.TryUpdate; + // the eviction sweep's KVP-based TryRemove compares records by structural equality, + // so a concurrent touch produces an unequal record and the sweep no-ops on the stale + // value (in-place mutation would stay structurally equal and defeat the check). + // + // DispatchInFlight: latched true under CAS by the dispatcher when a complete stream is + // about to invoke the handler; preserved across touch (record-copy) so a concurrent + // packet's touch does not race-clear it; cleared on handler throw / cancel so a + // redelivery can re-invoke against the already-assembled stream rather than losing + // the prior packets. + private sealed record ActiveStreamState(MessageBusReadStream Stream, DateTimeOffset LastSeenUtc, bool DispatchInFlight = false); +} diff --git a/src/ServiceConnect/Services/RegistryInitializer.cs b/src/ServiceConnect/Services/RegistryInitializer.cs new file mode 100644 index 000000000..01d654cdc --- /dev/null +++ b/src/ServiceConnect/Services/RegistryInitializer.cs @@ -0,0 +1,19 @@ +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Services; + +internal sealed class RegistryInitializer(IEnumerable registries) : IRegistryInitializer +{ + private readonly IEnumerable _registries = registries ?? throw new ArgumentNullException(nameof(registries)); + + public void Initialize() + { + // Force-enumerate all handler registries so they are eagerly constructed. + // This validates handler registrations at startup without storing them in Bus. + // The actual triggering of construction happens via DI when the IEnumerable is materialized. + foreach (var _ in _registries) + { + // Iteration forces DI to resolve each registry, triggering validation. + } + } +} diff --git a/src/ServiceConnect/Services/RequestReplyManager.cs b/src/ServiceConnect/Services/RequestReplyManager.cs new file mode 100644 index 000000000..74adde5d4 --- /dev/null +++ b/src/ServiceConnect/Services/RequestReplyManager.cs @@ -0,0 +1,786 @@ +using System.Collections.Concurrent; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; +using ServiceConnect.Interfaces.Exceptions; +using ServiceConnect.Interfaces.Options; + +namespace ServiceConnect.Services; + +/// +/// Tracks pending request-reply exchanges and correlates incoming replies with the originating request. +/// +internal sealed class RequestReplyManager(IMessageSerializer serializer, ISendMessagePipeline sendPipeline, IBusConfiguration busConfig) : IRequestReplyManager, IReplyStatusRequestReplyManager, IAsyncDisposable +{ + private readonly ConcurrentDictionary _pendingRequests = new(); + private readonly IMessageSerializer _serializer = serializer ?? throw new ArgumentNullException(nameof(serializer)); + private readonly ISendMessagePipeline _sendPipeline = sendPipeline ?? throw new ArgumentNullException(nameof(sendPipeline)); + // Hard cap on in-flight requests to prevent unbounded memory growth from + // RequestOptions.Timeout = Timeout.Infinite (or a hot loop of unawaited requests). + // Each RequestState pins a Timer, CancellationTokenSource, TaskCompletionSource, and + // the cancellation-registration closure. Snapshotted at construction so a frozen + // BusConfiguration's value is captured without re-reading the property on every call. + private readonly int _maxInflightRequests = (busConfig ?? throw new ArgumentNullException(nameof(busConfig))).MaxInflightRequests; + private int _disposed; + + /// + /// + /// The internal cancellation registration is asynchronously disposed when the request + /// completes (success, timeout, or cancellation), matching the await using pattern + /// used in this implementation. + /// + public async Task SendRequestAsync( + TRequest message, + IDictionary headers, + RequestOptions options, + CancellationToken cancellationToken = default) + where TRequest : Message + where TReply : Message + { + ValidateOptions(options); + + cancellationToken.ThrowIfCancellationRequested(); + ThrowIfDisposed(); + + var bufferWriter = new System.Buffers.ArrayBufferWriter(); + _serializer.Serialize(message, bufferWriter); + var messageBytes = bufferWriter.WrittenMemory; + + // Capacity check BEFORE we mint the request id so a saturated manager fails fast + // rather than allocating and then leaking the entry. The cap protects against + // Timeout.Infinite callers that never wake up and against unawaited request loops. + if (_pendingRequests.Count >= _maxInflightRequests) + { + throw new InvalidOperationException( + $"RequestReplyManager has reached its in-flight request cap ({_maxInflightRequests}). " + + "This usually indicates callers with Timeout.Infinite that never complete, or a hot loop " + + "of unawaited SendRequestAsync calls. Lower the per-request Timeout, await prior requests, " + + "or investigate why responders are not replying."); + } + + var messageId = Guid.NewGuid(); + var tcs = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var state = new RequestState(tcs, 1, typeof(TReply)); + _pendingRequests[messageId] = state; + // Re-check after registration: DisposeAsync iterates _pendingRequests once and + // exits. If dispose started AFTER our ThrowIfDisposed check but BEFORE the line + // above, the iteration has already passed and our entry is stranded — the caller + // would await tcs.Task forever (especially under Timeout.Infinite). Fault our own + // entry to preserve "every pending TCS faults on dispose" symmetry. + if (Volatile.Read(ref _disposed) != 0 && _pendingRequests.TryRemove(messageId, out _)) + { + throw new ObjectDisposedException(nameof(RequestReplyManager), + "Bus was disposed while sending a request."); + } + + headers[HeaderKeys.RequestMessageId] = messageId.ToString(); + + using var linkedCts = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken); + linkedCts.CancelAfter(options.Timeout); + + // Tracks whether the outbound pipeline finished its work before the linked CTS + // fired. Used by the typed-cancel catch below to distinguish "send pipeline was + // cancelled mid-flight" (fail fast) from "send completed and reply never arrived" + // (let the timeout path surface RequestTimeoutException). + var sendCompleted = 0; + + await using var reg = linkedCts.Token.Register(() => + { + state.Close(() => + { + if (cancellationToken.IsCancellationRequested) + { + tcs.TrySetCanceled(cancellationToken); + } + else + { + tcs.TrySetException(new RequestTimeoutException(messageId, TimeSpan.FromMilliseconds(options.Timeout))); + } + }); + }).ConfigureAwait(false); + + try + { + var endPoint = string.IsNullOrEmpty(options.EndPoint) ? null : options.EndPoint; + var context = new SendContext + { + Message = message, + MessageType = typeof(TRequest), + MessageBytes = messageBytes, + Headers = headers, + EndPoint = endPoint, + RoutingKey = null, + Operation = SendOperation.Request, + }; + await _sendPipeline.ExecuteSendMessagePipelineAsync(context, linkedCts.Token).ConfigureAwait(false); + Interlocked.Exchange(ref sendCompleted, 1); + } + catch (OperationCanceledException) when (cancellationToken.IsCancellationRequested) + { + // Caller's own token fired. Drop the pending entry and let the bare OCE + // propagate so existing handlers continue to observe a vanilla cancellation. + _pendingRequests.TryRemove(messageId, out _); + // Defensive: install the unobserved-fault observer mirror of the linkedCts catch. + // The registration callback may have already (or will momentarily) fault the TCS + // with RequestTimeoutException if the caller-CT and linked-CTS fire near-simultaneously. + // Today's TrySetCanceled semantics make UnobservedTaskException unreachable on this + // path — defensive belt-and-braces against a future change to the registration callback. + SuppressUnobservedFault(tcs.Task); + throw; + } + catch (OperationCanceledException) when (linkedCts.IsCancellationRequested && Volatile.Read(ref sendCompleted) == 0) + { + // The linked CTS fired (timeout) BEFORE the send pipeline finished and the + // caller's token did not. The reply will never arrive, so fail fast with the + // typed exception instead of waiting on the TCS until the timeout deadline. + _pendingRequests.TryRemove(messageId, out _); + // The registration callback may have already (or will momentarily) fault the TCS + // with RequestTimeoutException. Since we're throwing the typed cancel exception + // now and never awaiting tcs.Task, attach a fault observer to prevent the + // unawaited faulted task from triggering TaskScheduler.UnobservedTaskException + // at finalization. + SuppressUnobservedFault(tcs.Task); + throw new RequestSendCancelledException(messageId, + $"Request {messageId} send pipeline was cancelled before delivery.", + linkedCts.Token); + } + catch + { + _pendingRequests.TryRemove(messageId, out _); + // Genuinely exposed when the send pipeline throws non-OCE (e.g. IOException from + // a transport disconnect). The registration callback may fault the TCS with + // RequestTimeoutException; observe to suppress UnobservedTaskException. + SuppressUnobservedFault(tcs.Task); + throw; + } + + try + { + var result = await tcs.Task.ConfigureAwait(false); + return (TReply)result; + } + finally + { + _pendingRequests.TryRemove(messageId, out _); + } + } + + /// + /// + /// + /// The internal cancellation registration is asynchronously disposed when the request + /// completes (success, timeout, or cancellation), matching the await using pattern + /// used in this implementation. + /// + /// + /// Caller-token cancellation surfaces as . + /// Outbound-pipeline cancel-before-delivery surfaces as + /// . + /// + /// + public async Task> SendRequestMultiAsync( + TRequest message, + IDictionary headers, + RequestOptions options, + CancellationToken cancellationToken = default) + where TRequest : Message + where TReply : Message + { + ValidateOptions(options); + + cancellationToken.ThrowIfCancellationRequested(); + ThrowIfDisposed(); + + var bufferWriter = new System.Buffers.ArrayBufferWriter(); + _serializer.Serialize(message, bufferWriter); + var messageBytes = bufferWriter.WrittenMemory; + + if (_pendingRequests.Count >= _maxInflightRequests) + { + throw new InvalidOperationException( + $"RequestReplyManager has reached its in-flight request cap ({_maxInflightRequests}). " + + "See SendRequestAsync for guidance."); + } + + var messageId = Guid.NewGuid(); + // List with explicit lock outperforms ConcurrentBag for the request/reply + // fan-in case because we need Count to be O(1) and we're appending on the + // reply thread with no parallel readers until completion. + // Capacity is a hint, not a hard limit — clamp to InitialCapacityCap so a + // hostile or accidental ExpectedReplyCount=int.MaxValue cannot pre-allocate + // ~16 GiB up-front (caller-controlled capacity passed straight to List(int) + // is otherwise an OOM vector). The list grows naturally past the cap if more + // replies actually arrive. + const int InitialCapacityCap = 256; + var responses = new List(Math.Clamp(options.ExpectedReplyCount ?? 0, 0, InitialCapacityCap)); + int expectedCount = options.ExpectedReplyCount ?? -1; + var tcs = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + + var state = new RequestState(tcs, expectedCount, typeof(TReply), reply => + { + lock (responses) + { + responses.Add((TReply)reply); + } + }); + _pendingRequests[messageId] = state; + // Post-registration dispose re-check; see SendRequestAsync for the race rationale. + if (Volatile.Read(ref _disposed) != 0 && _pendingRequests.TryRemove(messageId, out _)) + { + throw new ObjectDisposedException(nameof(RequestReplyManager), + "Bus was disposed while sending a request."); + } + + headers[HeaderKeys.RequestMessageId] = messageId.ToString(); + + using var linkedCts = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken); + linkedCts.CancelAfter(options.Timeout); + + // See SendRequestAsync for the rationale; sendCompleted is flipped only after + // the send completes so a cancellation during the send also fails fast. + var sendCompleted = 0; + + await using var reg = linkedCts.Token.Register(() => + { + state.Close(() => + { + if (cancellationToken.IsCancellationRequested) + { + tcs.TrySetCanceled(cancellationToken); + return; + } + + // Parity with PublishRequestAsync's timeout path: a caller specifying a + // positive ExpectedReplyCount expects *exactly* that many replies. Under- + // delivery is a real timeout, not "got something". Throw RequestTimeoutException + // and surface the partials via PartialReplies so callers who want to recover + // them can — a silent TrySetResult here would hand the caller a partial list + // with no indication anything went wrong. + if (expectedCount > 0 && !state.HasReceivedAllExpectedReplies) + { + object[] partials; + lock (responses) + { + // Snapshot under the same lock the reply path appends under so the + // exception's PartialReplies is a stable copy — concurrent late + // replies (rejected at the Close gate above anyway) cannot mutate + // it after the throw. + partials = new object[responses.Count]; + for (var i = 0; i < responses.Count; i++) + { + partials[i] = responses[i]!; + } + } + + tcs.TrySetException(new RequestTimeoutException( + messageId, + TimeSpan.FromMilliseconds(options.Timeout), + partials)); + return; + } + + // No explicit expectation (zero / negative / null ExpectedReplyCount) — the + // caller asked for "everything that comes back in the window". Returning + // what we have is the documented semantics. + tcs.TrySetResult(null!); + }); + }).ConfigureAwait(false); + + try + { + var endPoint = string.IsNullOrEmpty(options.EndPoint) ? null : options.EndPoint; + var context = new SendContext + { + Message = message, + MessageType = typeof(TRequest), + MessageBytes = messageBytes, + Headers = headers, + EndPoint = endPoint, + RoutingKey = null, + Operation = SendOperation.Request, + }; + await _sendPipeline.ExecuteSendMessagePipelineAsync(context, linkedCts.Token).ConfigureAwait(false); + Interlocked.Exchange(ref sendCompleted, 1); + } + catch (OperationCanceledException) when (cancellationToken.IsCancellationRequested) + { + _pendingRequests.TryRemove(messageId, out _); + // Defensive: install the unobserved-fault observer mirror of the linkedCts catch. + // The registration callback may have already (or will momentarily) fault the TCS + // with RequestTimeoutException if the caller-CT and linked-CTS fire near-simultaneously. + // Today's TrySetCanceled semantics make UnobservedTaskException unreachable on this + // path — defensive belt-and-braces against a future change to the registration callback. + SuppressUnobservedFault(tcs.Task); + throw; + } + catch (OperationCanceledException) when (linkedCts.IsCancellationRequested && Volatile.Read(ref sendCompleted) == 0) + { + // Timeout cancelled the send before it finished. Surface the typed exception + // immediately rather than returning the partial-results path, which would + // otherwise hand the caller an empty list and obscure the transport-layer failure. + _pendingRequests.TryRemove(messageId, out _); + // The registration callback may have already (or will momentarily) fault the TCS + // with RequestTimeoutException. Since we're throwing the typed cancel exception + // now and never awaiting tcs.Task, attach a fault observer to prevent the + // unawaited faulted task from triggering TaskScheduler.UnobservedTaskException + // at finalization. + SuppressUnobservedFault(tcs.Task); + throw new RequestSendCancelledException(messageId, + $"Request {messageId} send pipeline was cancelled before delivery.", + linkedCts.Token); + } + catch + { + _pendingRequests.TryRemove(messageId, out _); + // Genuinely exposed when the send pipeline throws non-OCE (e.g. IOException from + // a transport disconnect). The registration callback may fault the TCS with + // RequestTimeoutException; observe to suppress UnobservedTaskException. + SuppressUnobservedFault(tcs.Task); + throw; + } + + try + { + await tcs.Task.ConfigureAwait(false); + lock (responses) + { + return [.. responses]; + } + } + finally + { + _pendingRequests.TryRemove(messageId, out _); + } + } + + /// + /// + /// The internal cancellation registration is asynchronously disposed when the request + /// completes (success, timeout, or cancellation), matching the await using pattern + /// used in this implementation. + /// + public async Task PublishRequestAsync( + TRequest message, + IDictionary headers, + RequestOptions options, + Action onReply, + CancellationToken cancellationToken = default) + where TRequest : Message + where TReply : Message + { + ValidateOptions(options); + + cancellationToken.ThrowIfCancellationRequested(); + ThrowIfDisposed(); + + var bufferWriter = new System.Buffers.ArrayBufferWriter(); + _serializer.Serialize(message, bufferWriter); + var messageBytes = bufferWriter.WrittenMemory; + + if (_pendingRequests.Count >= _maxInflightRequests) + { + throw new InvalidOperationException( + $"RequestReplyManager has reached its in-flight request cap ({_maxInflightRequests}). " + + "See SendRequestAsync for guidance."); + } + + var messageId = Guid.NewGuid(); + var expectedCount = options.ExpectedReplyCount ?? -1; + var tcs = new TaskCompletionSource(TaskCreationOptions.RunContinuationsAsynchronously); + var sendCompleted = 0; + + var state = new RequestState(tcs, expectedCount, typeof(TReply), reply => onReply((TReply)reply)); + _pendingRequests[messageId] = state; + // Post-registration dispose re-check; see SendRequestAsync for the race rationale. + if (Volatile.Read(ref _disposed) != 0 && _pendingRequests.TryRemove(messageId, out _)) + { + throw new ObjectDisposedException(nameof(RequestReplyManager), + "Bus was disposed while publishing a request."); + } + + headers[HeaderKeys.RequestMessageId] = messageId.ToString(); + + using var linkedCts = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken); + linkedCts.CancelAfter(options.Timeout); + + await using var reg = linkedCts.Token.Register(() => + { + state.Close(() => + { + if (cancellationToken.IsCancellationRequested) + { + tcs.TrySetCanceled(cancellationToken); + return; + } + + if (Volatile.Read(ref sendCompleted) == 0 && !state.HasAcceptedReplies) + { + tcs.TrySetException(new RequestTimeoutException(messageId, TimeSpan.FromMilliseconds(options.Timeout))); + return; + } + + // If the caller asked for a specific number of replies but the timeout + // fired before we got them all, surface a RequestTimeoutException so + // under-delivery is visible to the caller. A zero/negative expected + // count means "no explicit expectation" — keep success in that case. + if (expectedCount > 0 && !state.HasReceivedAllExpectedReplies) + { + tcs.TrySetException(new RequestTimeoutException(messageId, TimeSpan.FromMilliseconds(options.Timeout))); + return; + } + + tcs.TrySetResult(null!); + }); + }).ConfigureAwait(false); + + try + { + var context = new SendContext + { + Message = message, + MessageType = typeof(TRequest), + MessageBytes = messageBytes, + Headers = headers, + EndPoint = null, + RoutingKey = null, + Operation = SendOperation.Request, + }; + await _sendPipeline.ExecutePublishMessagePipelineAsync(context, linkedCts.Token).ConfigureAwait(false); + Interlocked.Exchange(ref sendCompleted, 1); + } + catch (OperationCanceledException) when (cancellationToken.IsCancellationRequested) + { + _pendingRequests.TryRemove(messageId, out _); + // Defensive: install the unobserved-fault observer mirror of the linkedCts catch. + // The registration callback may have already (or will momentarily) fault the TCS + // with RequestTimeoutException if the caller-CT and linked-CTS fire near-simultaneously. + // Today's TrySetCanceled semantics make UnobservedTaskException unreachable on this + // path — defensive belt-and-braces against a future change to the registration callback. + SuppressUnobservedFault(tcs.Task); + throw; + } + catch (OperationCanceledException) when (linkedCts.IsCancellationRequested && Volatile.Read(ref sendCompleted) == 0) + { + // Publish pipeline was cancelled by the timeout before delivery; surface the + // typed exception so the caller sees a fail-fast outcome instead of the + // timeout-shaped completion of the reply TCS. + _pendingRequests.TryRemove(messageId, out _); + // The registration callback may have already (or will momentarily) fault the TCS + // with RequestTimeoutException. Since we're throwing the typed cancel exception + // now and never awaiting tcs.Task, attach a fault observer to prevent the + // unawaited faulted task from triggering TaskScheduler.UnobservedTaskException + // at finalization. + SuppressUnobservedFault(tcs.Task); + throw new RequestSendCancelledException(messageId, + $"Publish {messageId} send pipeline was cancelled before delivery.", + linkedCts.Token); + } + catch + { + _pendingRequests.TryRemove(messageId, out _); + // Genuinely exposed when the publish pipeline throws non-OCE (e.g. IOException + // from a transport disconnect). The registration callback may fault the TCS with + // RequestTimeoutException; observe to suppress UnobservedTaskException. + SuppressUnobservedFault(tcs.Task); + throw; + } + + try + { + await tcs.Task.ConfigureAwait(false); + } + finally + { + _pendingRequests.TryRemove(messageId, out _); + } + } + + /// + /// Processes a reply for a previously tracked request and ignores unknown request identifiers. + /// + /// The request identifier copied into the reply message. + /// The serialized reply payload. + /// The wire-reported reply type. + public void ProcessReply(string messageId, ReadOnlyMemory messageBytes, Type type) + { + TryProcessReply(messageId, messageBytes, type); + } + + /// + /// Attempts to apply a reply message to a tracked request. + /// + /// The request identifier copied into the reply message. + /// The serialized reply payload. + /// The wire-reported reply type. + /// when the reply matched a tracked request; otherwise . + public bool TryProcessReply(string messageId, ReadOnlyMemory messageBytes, Type type) + { + if (!Guid.TryParse(messageId, out var requestId) || !_pendingRequests.TryGetValue(requestId, out var state)) + { + return false; + } + + // The whole reply lifecycle (deserialize, OnReply callback, completion bookkeeping) + // runs under RequestState._stateLock so concurrent replies cannot re-enter the + // user callback. Use the expected reply type stored at request time, not the + // wire-provided type — this prevents deserialization into attacker-controlled + // types via crafted reply messages. + if (!state.TryHandleReply( + replyType => _serializer.Deserialize(messageBytes, replyType), + out var requestCompleted)) + { + return false; + } + + if (requestCompleted) + { + _pendingRequests.TryRemove(requestId, out _); + } + + // TCS completion runs under the state-lock inside TryHandleReply so a caller-CT + // firing immediately after _closed=true cannot lose its registration's + // TrySetCanceled to a queued out-of-lock TrySetResult. Continuations may still + // run inline on the lock-holding thread; the lock is per-RequestState so a slow + // continuation pins one request's reply path, not the whole reply dispatcher. + return true; + } + + /// + public bool IsTrackedRequest(string messageId) + { + return Guid.TryParse(messageId, out var requestId) && _pendingRequests.ContainsKey(requestId); + } + + private static void ValidateOptions(RequestOptions options) + { + if (options.Timeout is < 0 and not Timeout.Infinite) + { + throw new ArgumentOutOfRangeException(nameof(options), + $"{nameof(RequestOptions)}.{nameof(RequestOptions.Timeout)} must be non-negative or Timeout.Infinite."); + } + + // default(RequestOptions) skips the parameterless ctor and leaves Timeout=0, + // which would CancelAfter(0) and immediately fail every caller. Reject with + // pointer to the right replacement. + if (options.Timeout == 0) + { + throw new ArgumentOutOfRangeException(nameof(options), + $"{nameof(RequestOptions)}.{nameof(RequestOptions.Timeout)} is 0 (likely default(RequestOptions)). " + + $"Use RequestOptions.Default or new RequestOptions() to get the default {RequestOptions.DefaultTimeoutMs}ms timeout, " + + $"or set Timeout = Timeout.Infinite to wait indefinitely."); + } + } + + /// + /// Attaches a fire-and-forget continuation that observes the task's exception if it faults. + /// Prevents at finalization for tasks the + /// caller is not awaiting. The OnlyOnFaulted | ExecuteSynchronously flags make the continuation + /// a no-op on success paths and avoid scheduling overhead on the fault path. + /// + internal static void SuppressUnobservedFault(Task task) + { + ArgumentNullException.ThrowIfNull(task); + _ = task.ContinueWith(static t => _ = t.Exception, + CancellationToken.None, + TaskContinuationOptions.OnlyOnFaulted | TaskContinuationOptions.ExecuteSynchronously, + TaskScheduler.Default); + } + + /// + /// Faults any pending request TCSes with so callers + /// awaiting a reply (especially those with + /// timeouts) wake up promptly on app shutdown rather than waiting for GC. Subsequent reply + /// callbacks for those request ids no-op against the disposed flag. + /// + private void ThrowIfDisposed() + { + if (Volatile.Read(ref _disposed) != 0) + { + throw new ObjectDisposedException(nameof(RequestReplyManager)); + } + } + + public ValueTask DisposeAsync() + { + if (Interlocked.Exchange(ref _disposed, 1) != 0) + { + return ValueTask.CompletedTask; + } + + // Snapshot the entries first — TryRemove + TrySetException happens for each, then we + // clear the dictionary at the end. Using Tcs.TrySetException is safe (idempotent) even + // if a near-simultaneous reply / cancellation / timeout completes the TCS first. + foreach (var pair in _pendingRequests) + { + if (_pendingRequests.TryRemove(pair.Key, out var state)) + { + state.Close(() => state.Tcs.TrySetException( + new ObjectDisposedException(nameof(RequestReplyManager), + "Bus was disposed while a request was in flight."))); + } + } + return ValueTask.CompletedTask; + } + + private sealed class RequestState(TaskCompletionSource tcs, int expectedCount, Type replyType, Action? onReply = null) + { +#if NET9_0_OR_GREATER + private readonly System.Threading.Lock _stateLock = new(); +#else + private readonly object _stateLock = new(); +#endif + private bool _closed; + private bool _hasAcceptedReplies; + private int _remainingReplies = expectedCount; + + public TaskCompletionSource Tcs { get; } = tcs; + public int ExpectedCount { get; } = expectedCount; + public Type ReplyType { get; } = replyType; + public Action? OnReply { get; } = onReply; + public bool HasAcceptedReplies + { + get + { + lock (_stateLock) + { + return _hasAcceptedReplies; + } + } + } + + /// + /// True when the caller specified a positive and all + /// expected replies have been accepted. Used by PublishRequestAsync's timeout path + /// to distinguish "got enough" from "timed out with partial replies". + /// + public bool HasReceivedAllExpectedReplies + { + get + { + lock (_stateLock) + { + return ExpectedCount > 0 && _remainingReplies == 0; + } + } + } + + /// + /// Close runs the supplied close action exactly once (the first caller wins). + /// The action runs outside the lock so a slow continuation cannot pin the + /// dispatch thread that observed the close. + /// + internal void Close(Action? onClose = null) + { + lock (_stateLock) + { + if (_closed) + { + return; + } + _closed = true; + } + onClose?.Invoke(); + } + + /// + /// Processes a deserialized reply under the state lock. Returns + /// when the reply was accepted (state was open and the reply-count budget allowed) + /// or when rejected (state already closed or budget exhausted). + /// The user-supplied callback runs under the state lock so + /// concurrent replies cannot re-enter it. + /// + /// TCS completion (TrySetResult / TrySetException) runs UNDER the + /// state lock so the close-vs-complete sequence is atomic with the caller-CT + /// registration's _closed read. If completion ran outside the lock, a + /// caller-CT firing between _closed=true and the TCS completion call would + /// have its registration callback no-op (state.Close early-returns on + /// _closed) — the caller would await success despite the cancellation. + /// Cost: TCS continuations may run inline on the lock-holding thread — the lock + /// is per- so a slow continuation pins one request's + /// reply path, not the whole reply dispatcher. + /// + /// + internal bool TryHandleReply( + Func deserialize, + out bool requestCompleted) + { + requestCompleted = false; + + lock (_stateLock) + { + if (_closed) + { + return false; + } + + bool acceptedAndCompletes; + if (ExpectedCount <= 0) + { + _hasAcceptedReplies = true; + acceptedAndCompletes = false; + } + else + { + if (_remainingReplies <= 0) + { + return false; + } + _remainingReplies--; + _hasAcceptedReplies = true; + acceptedAndCompletes = _remainingReplies == 0; + } + + // Deserialize inside the lock so a corrupted-payload exception attributes + // to this reply without leaking partial state mutations to a concurrent reply. + object reply; + try + { + reply = deserialize(ReplyType); + } + catch (Exception ex) + { + _closed = true; + requestCompleted = true; + // TrySetException runs UNDER the lock so the caller-CT registration's + // state.Close() — which checks _closed — observes a consistent state. + Tcs.TrySetException(ex); + return true; + } + + if (OnReply is not null) + { + try + { + OnReply(reply); + } + catch (Exception ex) + { + _closed = true; + requestCompleted = true; + Tcs.TrySetException(ex); + return true; + } + + if (acceptedAndCompletes) + { + _closed = true; + requestCompleted = true; + // TrySetResult under the lock. If this ran outside the lock there + // would be a window where a caller-CT firing after _closed=true and + // before the TrySetResult call would have its registration callback + // no-op (state.Close early-returns on _closed) — the caller would + // await success despite the cancellation. + Tcs.TrySetResult(null!); + } + } + else + { + _closed = true; + requestCompleted = true; + Tcs.TrySetResult(reply); + } + + return true; + } + } + } +} diff --git a/src/ServiceConnect/Services/RoutingSlipDestinationValidator.cs b/src/ServiceConnect/Services/RoutingSlipDestinationValidator.cs new file mode 100644 index 000000000..aa09d2f3e --- /dev/null +++ b/src/ServiceConnect/Services/RoutingSlipDestinationValidator.cs @@ -0,0 +1,57 @@ +using System.Buffers; +using System.Runtime.CompilerServices; + +namespace ServiceConnect.Services; + +/// +/// Shared validator for routing-slip destination queue names. Used both at send-time +/// (Bus.RouteAsync) so producers fail fast with a typed argument error, and at +/// receive-time (HandlerProcessor.ForwardRoutingSlipAsync) as a defence-in-depth check +/// against attacker-controlled RoutingSlip headers redirecting traffic. +/// +internal static class RoutingSlipDestinationValidator +{ + public const int MaxDestinationLength = 128; + + // Characters either structural in AMQP routing (`*`, `#` are wildcards on topic + // exchanges) or common injection vectors (`\0`, `\r`, `\n`, `\t`, quotes). Wrapped + // in a SearchValues so the set is genuinely immutable — a mutable char[] exposed as + // `static readonly` only guards the reference; elements could be rewritten via + // reflection or direct indexing to silently weaken the global validation surface. + private static readonly SearchValues ForbiddenChars = + SearchValues.Create(['*', '#', '\0', '\r', '\n', '\t', '"', '\'']); + + /// + /// Returns the failure reason as a string when invalid, or + /// when the destination is acceptable. Caller chooses how to surface the failure + /// (ArgumentException at send-time, log + drop at receive-time). + /// + [MethodImpl(MethodImplOptions.AggressiveInlining)] + public static string? GetFailureReason(string? destination) + { + if (string.IsNullOrWhiteSpace(destination)) + { + return "destination is null or whitespace"; + } + if (destination.Length > MaxDestinationLength) + { + return $"destination exceeds the {MaxDestinationLength}-character cap"; + } + if (destination.AsSpan().IndexOfAny(ForbiddenChars) >= 0) + { + return "destination contains a reserved character (one of *, #, NUL, CR, LF, TAB, \", ')"; + } + // Reject the AMQP `amq.*` reserved namespace as defence in depth: a hostile inbound + // RoutingSlip header could otherwise route messages to broker-internal queues + // (e.g. `amq.rabbitmq.trace`) or to another tenant's auto-generated `amq.gen-*` + // exclusive queue if the consumer's vhost permissions allow it. + if (destination.StartsWith("amq.", StringComparison.OrdinalIgnoreCase)) + { + return "destination is in the AMQP reserved 'amq.*' namespace"; + } + return null; + } + + [MethodImpl(MethodImplOptions.AggressiveInlining)] + public static bool IsValid(string? destination) => GetFailureReason(destination) is null; +} diff --git a/src/ServiceConnect/Services/SendMessagePipeline.cs b/src/ServiceConnect/Services/SendMessagePipeline.cs new file mode 100644 index 000000000..b75d6a63b --- /dev/null +++ b/src/ServiceConnect/Services/SendMessagePipeline.cs @@ -0,0 +1,134 @@ +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Configuration; + +namespace ServiceConnect.Services; + +/// +/// Default implementation of ISendMessagePipeline that delegates directly to IProducer, +/// optionally wrapping calls in a middleware chain from IPipelineConfiguration. +/// Chains are built once (lazily) and cached rather than rebuilt per message. +/// +/// +/// Because the chain caches middleware instances captured at first use, +/// implementations MUST be registered as +/// singletons. Scoped or transient registrations will be silently promoted to +/// singleton lifetime, which can cause cross-request state leaks. +/// +internal sealed class SendMessagePipeline : ISendMessagePipeline +{ + private readonly IProducer _producer; + private readonly IPipelineConfiguration _pipelineConfig; + private readonly IServiceProvider _serviceProvider; + private readonly Lazy _publishChain; + private readonly Lazy _sendChain; + private int _disposed; + + /// + /// Creates a send pipeline backed by a producer and optional outbound middleware. + /// + /// The producer that performs the terminal send or publish operation. + /// The pipeline configuration that supplies middleware types. + /// The service provider used to resolve middleware instances. + public SendMessagePipeline(IProducer producer, IPipelineConfiguration pipelineConfig, IServiceProvider serviceProvider) + { + _producer = producer ?? throw new ArgumentNullException(nameof(producer)); + _pipelineConfig = pipelineConfig ?? throw new ArgumentNullException(nameof(pipelineConfig)); + _serviceProvider = serviceProvider ?? throw new ArgumentNullException(nameof(serviceProvider)); + _publishChain = new Lazy(BuildPublishChain, isThreadSafe: true); + _sendChain = new Lazy(BuildSendChain, isThreadSafe: true); + } + + /// + public Task ExecutePublishMessagePipelineAsync(SendContext context, CancellationToken cancellationToken = default) + { + ObjectDisposedException.ThrowIf(Volatile.Read(ref _disposed) != 0, this); + ArgumentNullException.ThrowIfNull(context); + return _publishChain.Value(context, cancellationToken); + } + + /// + public Task ExecuteSendMessagePipelineAsync(SendContext context, CancellationToken cancellationToken = default) + { + ObjectDisposedException.ThrowIf(Volatile.Read(ref _disposed) != 0, this); + ArgumentNullException.ThrowIfNull(context); + return _sendChain.Value(context, cancellationToken); + } + + private SendMessageDelegate BuildPublishChain() + { + var producer = _producer; + // Pass ctx.RoutingKey to the routing-key-aware overload only when a value is supplied. + // When the routing key is null/empty, fall back to the legacy 4-arg overload so test + // mocks set up against the original signature still see invocations, AND third-party + // IProducer implementations that haven't overridden the new DIM overload run their + // original publish path rather than the DIM's no-op fallback. The in-tree RabbitMQ + // producer's 4-arg overload forwards to the 5-arg one internally, so behaviour is + // identical for the common no-routing-key case. + Task terminal(SendContext ctx, CancellationToken ct) => + string.IsNullOrEmpty(ctx.RoutingKey) + ? producer.PublishAsync(ctx.MessageType, ctx.MessageBytes, ToReadOnly(ctx.Headers), ct) + : producer.PublishAsync(ctx.MessageType, ctx.MessageBytes, ctx.RoutingKey, ToReadOnly(ctx.Headers), ct); + return WrapMiddleware(terminal); + } + + private SendMessageDelegate BuildSendChain() + { + var producer = _producer; + Task terminal(SendContext ctx, CancellationToken ct) => + !string.IsNullOrEmpty(ctx.EndPoint) + ? producer.SendAsync(ctx.EndPoint, ctx.MessageType, ctx.MessageBytes, ctx.RoutingSlipHopsCompleted, ToReadOnly(ctx.Headers), ct) + : producer.SendAsync(ctx.MessageType, ctx.MessageBytes, ToReadOnly(ctx.Headers), ct); + return WrapMiddleware(terminal); + } + + // SendContext.Headers is IDictionary for middleware mutability; IProducer + // accepts IReadOnlyDictionary as a tighter contract. Bus.cs constructs the + // headers as a concrete Dictionary which implements both, so the runtime + // cast succeeds without copying. Defensive fallback wraps any other IDictionary impl in a + // shallow copy so the read-only contract is honoured. + private static IReadOnlyDictionary? ToReadOnly(IDictionary? headers) + { + if (headers is null) + { + return null; + } + + if (headers is IReadOnlyDictionary ro) + { + return ro; + } + + return new Dictionary(headers, StringComparer.Ordinal); + } + + private SendMessageDelegate WrapMiddleware(SendMessageDelegate terminal) + { + var middlewareTypes = _pipelineConfig.SendMessageMiddleware; + if (middlewareTypes.Count == 0) + { + return terminal; + } + + var chain = terminal; + for (int i = middlewareTypes.Count - 1; i >= 0; i--) + { + var mw = (ISendMessageMiddleware)_serviceProvider.GetRequiredService(middlewareTypes[i]); + var next = chain; + chain = (ctx, ct) => mw.ProcessAsync(ctx, next, ct); + } + return chain; + } + + /// + public ValueTask DisposeAsync() + { + if (Interlocked.Exchange(ref _disposed, 1) != 0) + { + return ValueTask.CompletedTask; + } + + // Producer lifetime is managed by the DI container — do not dispose it here + return ValueTask.CompletedTask; + } +} diff --git a/src/ServiceConnect/Services/SystemTextJsonMessageSerializer.cs b/src/ServiceConnect/Services/SystemTextJsonMessageSerializer.cs new file mode 100644 index 000000000..0681a82f9 --- /dev/null +++ b/src/ServiceConnect/Services/SystemTextJsonMessageSerializer.cs @@ -0,0 +1,148 @@ +using System.Buffers; +using System.Text.Encodings.Web; +using System.Text.Json; +using System.Text.Json.Serialization; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Exceptions; + +namespace ServiceConnect.Services; + +/// +/// System.Text.Json implementation of . Wire format +/// is JSON-equivalent to the Newtonsoft.Json implementation under the matching settings +/// (relaxed Unicode escaping, ISO 8601 round-trip dates, MaxDepth = 32). Cross-serializer +/// behaviour is enforced by the SerializationCompatTests corpus. +/// +internal sealed class SystemTextJsonMessageSerializer : IMessageSerializer +{ + private readonly JsonSerializerOptions _options; + + /// + /// Creates a serializer using optionally-customised STJ options. + /// + /// Optional base options to clone. All non-wire-compat settings + /// (custom converters, type-info resolvers, WriteIndented, etc.) are preserved from + /// the source. The wire-compat settings listed below are always overwritten + /// by ServiceConnect's defaults so the cross-version corpus assertions hold even when + /// callers pass a customised options instance. + public SystemTextJsonMessageSerializer(JsonSerializerOptions? options = null) + { + _options = new JsonSerializerOptions(options ?? new JsonSerializerOptions()) + { + // Match HeaderDecoder.MaxDepth = 32 cap on inbound nesting. STJ has no direct + // equivalent of Newtonsoft's ReferenceLoopHandling.Error: a reference cycle in + // STJ surfaces as a JsonException once nesting exceeds MaxDepth (depth-cap + // detection rather than identity-tracking). The observable behaviour at the + // call site is the same — both wrap as SerializationException — but the + // semantic shift is documented here for future maintainers. + MaxDepth = 32, + + // Newtonsoft's default emits literal non-ASCII characters; STJ default + // escapes them. UnsafeRelaxedJsonEscaping keeps the wire bytes byte-identical + // for typical payloads, which is what the corpus tests assert. + Encoder = JavaScriptEncoder.UnsafeRelaxedJsonEscaping, + + // Newtonsoft.Json tolerates string-encoded numbers ("3" → int) by default. + // Match that behaviour so a Newtonsoft producer's payload deserialises here. + NumberHandling = JsonNumberHandling.AllowReadingFromString, + + // Newtonsoft default is case-sensitive matching; preserve. + PropertyNameCaseInsensitive = false, + + // Newtonsoft serialises only properties (not fields) by default; preserve. + IncludeFields = false, + + // Equivalent of NullValueHandling.Include — emit null fields on the wire. + DefaultIgnoreCondition = JsonIgnoreCondition.Never, + + // Newtonsoft used DateTimeZoneHandling.RoundtripKind to preserve DateTimeKind + // across serialise/deserialise. STJ already preserves DateTimeKind for ISO 8601 + // round-trips by default — no equivalent setting needed, behaviour matches. + }; + } + + /// + public void Serialize(T message, IBufferWriter output) where T : Message + { + ArgumentNullException.ThrowIfNull(output); + if (message is null) + { + throw new SerializationException("Cannot serialize null message", typeof(T)); + } + + try + { + using var jsonWriter = new Utf8JsonWriter(output); + JsonSerializer.Serialize(jsonWriter, message, message.GetType(), _options); + } + catch (JsonException ex) + { + throw new SerializationException($"Failed to serialize message of type {typeof(T).Name}", typeof(T), ex); + } + } + + /// + public T Deserialize(ReadOnlyMemory data) where T : Message + => (T)Deserialize(data, typeof(T)); + + /// + public object Deserialize(ReadOnlyMemory data, Type type) + { + try + { + return JsonSerializer.Deserialize(data.Span, type, _options) + ?? throw new SerializationException( + $"Deserialization returned null for type {type.Name}", type); + } + catch (JsonException ex) + { + throw new SerializationException( + $"Failed to deserialize message of type {type.Name}", type, ex); + } + } + + /// + /// + /// Overrides the interface default to read across segments via Utf8JsonReader without + /// flattening into a byte[] first — the streaming path delivers messages as multi-segment + /// sequences and a per-message copy would be a measurable regression versus the + /// Newtonsoft implementation. + /// + public object Deserialize(in ReadOnlySequence data, Type type) + { + try + { + // The state-default ctor uses JsonReaderState's internal MaxDepth=64, NOT the + // serializer's configured MaxDepth. A 35-deep payload would be rejected by the + // span overload (which threads _options through JsonSerializer.Deserialize) but + // accepted by this sequence overload — defeating the depth cap on the consume + // hot path. Construct the state with MaxDepth from _options so both overloads + // enforce the same boundary. + var readerOptions = new JsonReaderOptions + { + MaxDepth = _options.MaxDepth, + // CommentHandling and AllowTrailingCommas remain at their defaults — STJ's + // JsonSerializerOptions does not expose them as a unified setting. The wire + // format does not include comments or trailing commas (asserted by the + // serialization-compat corpus), so this matches the span overload's behaviour. + }; + var reader = new Utf8JsonReader(data, isFinalBlock: true, state: new JsonReaderState(readerOptions)); + return JsonSerializer.Deserialize(ref reader, type, _options) + ?? throw new SerializationException( + $"Deserialization returned null for type {type.Name}", type); + } + catch (JsonException ex) + { + throw new SerializationException( + $"Failed to deserialize message of type {type.Name}", type, ex); + } + catch (InvalidOperationException ex) + { + // JsonSerializer.Deserialize(ref Utf8JsonReader, ...) throws InvalidOperationException + // on malformed reader state. The reader is freshly constructed here so this is + // unreachable in practice; wrap for consistency with other deserialize paths. + throw new SerializationException( + $"Failed to deserialize message of type {type.Name}", type, ex); + } + } +} diff --git a/src/ServiceConnect/Services/TimeoutHeaderPersistence.cs b/src/ServiceConnect/Services/TimeoutHeaderPersistence.cs new file mode 100644 index 000000000..76437b4b8 --- /dev/null +++ b/src/ServiceConnect/Services/TimeoutHeaderPersistence.cs @@ -0,0 +1,132 @@ +using System.Globalization; +using System.Text; +using Microsoft.Extensions.Logging; +using ServiceConnect.Interfaces; + +namespace ServiceConnect.Services; + +internal static class TimeoutHeaderPersistence +{ + private static readonly HashSet ReservedTimeoutHeaders = + [ + HeaderKeys.MessageType, + HeaderKeys.TypeName, + HeaderKeys.FullTypeName, + HeaderKeys.MessageId, + HeaderKeys.CorrelationId, + HeaderKeys.DestinationAddress, + HeaderKeys.SourceAddress, + HeaderKeys.RequestMessageId, + HeaderKeys.ResponseMessageId, + HeaderKeys.RoutingKey, + HeaderKeys.RoutingSlip, + // Strip the inbound hop counter so a saga's timeout starts fresh at hops=0. + // Without this, a saga that received a near-end-of-slip message would persist + // the inbound counter into the timeout row; when the timeout fires the + // dispatched message would carry the stale counter and the saga's first + // RouteAsync after a timeout could be refused by the per-hop cap. + HeaderKeys.RoutingSlipHopsCompleted, + HeaderKeys.Publish, + HeaderKeys.SequenceId, + HeaderKeys.PacketNumber, + HeaderKeys.LastPacketNumber, + HeaderKeys.ByteStream, + HeaderKeys.TimeSent, + HeaderKeys.TimeReceived, + HeaderKeys.TimeProcessed, + HeaderKeys.SourceMachine, + HeaderKeys.DestinationMachine, + HeaderKeys.Redelivered, + HeaderKeys.ConsumerType, + HeaderKeys.RetryCount, + HeaderKeys.Priority, + HeaderKeys.Language, + HeaderKeys.Exception, + ]; + + public static Dictionary CaptureForStorage(IReadOnlyDictionary? headers) + { + var persistedHeaders = new Dictionary(StringComparer.Ordinal); + + if (headers is null) + { + return persistedHeaders; + } + + foreach (var header in headers) + { + if (ReservedTimeoutHeaders.Contains(header.Key)) + { + continue; + } + + persistedHeaders[header.Key] = header.Value; + } + + return persistedHeaders; + } + + public static Dictionary BuildOutgoingHeaders(IReadOnlyDictionary storedHeaders, ILogger? logger = null) + { + var outgoingHeaders = new Dictionary(StringComparer.Ordinal); + + foreach (var header in storedHeaders) + { + if (ReservedTimeoutHeaders.Contains(header.Key)) + { + continue; + } + + var converted = ConvertOutgoingHeaderValue(header.Value); + if (converted != null) + { + outgoingHeaders[header.Key] = converted; + } + else if (logger is not null && logger.IsEnabled(LogLevel.Debug)) + { + logger.LogDebug( + "Dropping timeout header {HeaderKey} with unsupported value type {ValueType}", + header.Key, + header.Value?.GetType().FullName ?? ""); + } + } + + return outgoingHeaders; + } + + /// + /// Prefix applied to base64-encoded binary header values so receivers can recognise + /// them as round-trippable binary rather than arbitrary text. Outgoing headers are + /// string-typed, so without a marker a consumer cannot tell a text header + /// from a binary one. + /// + public const string BinaryHeaderPrefix = "base64:"; + + private static string? ConvertOutgoingHeaderValue(object? value) => value switch + { + null => string.Empty, + string stringValue => stringValue, + // Binary values: encode as base64 with a reserved marker prefix so the + // receiver can distinguish them from text and decode round-trip-safely. + // Prior behaviour (UTF-8 GetString) silently corrupted non-text bytes. + byte[] bytes => BinaryHeaderPrefix + Convert.ToBase64String(bytes), + bool boolValue => boolValue.ToString(CultureInfo.InvariantCulture), + char charValue => charValue.ToString(CultureInfo.InvariantCulture), + byte byteValue => byteValue.ToString(CultureInfo.InvariantCulture), + sbyte sbyteValue => sbyteValue.ToString(CultureInfo.InvariantCulture), + short shortValue => shortValue.ToString(CultureInfo.InvariantCulture), + ushort ushortValue => ushortValue.ToString(CultureInfo.InvariantCulture), + int intValue => intValue.ToString(CultureInfo.InvariantCulture), + uint uintValue => uintValue.ToString(CultureInfo.InvariantCulture), + long longValue => longValue.ToString(CultureInfo.InvariantCulture), + ulong ulongValue => ulongValue.ToString(CultureInfo.InvariantCulture), + float floatValue => floatValue.ToString(CultureInfo.InvariantCulture), + double doubleValue => doubleValue.ToString(CultureInfo.InvariantCulture), + decimal decimalValue => decimalValue.ToString(CultureInfo.InvariantCulture), + Guid guidValue => guidValue.ToString("D", CultureInfo.InvariantCulture), + DateTime dateTimeValue => dateTimeValue.ToString("O", CultureInfo.InvariantCulture), + DateTimeOffset dateTimeOffsetValue => dateTimeOffsetValue.ToString("O", CultureInfo.InvariantCulture), + TimeSpan timeSpanValue => timeSpanValue.ToString("c", CultureInfo.InvariantCulture), + _ => null, + }; +} diff --git a/src/Tools/packaging/%APPDATA%/Microsoft/Windows/IETldCache/index.dat b/src/Tools/packaging/%APPDATA%/Microsoft/Windows/IETldCache/index.dat deleted file mode 100644 index 294f4016d..000000000 Binary files a/src/Tools/packaging/%APPDATA%/Microsoft/Windows/IETldCache/index.dat and /dev/null differ diff --git a/src/Tools/packaging/BuildNugetPublishPackages.bat b/src/Tools/packaging/BuildNugetPublishPackages.bat deleted file mode 100644 index 5e14614eb..000000000 --- a/src/Tools/packaging/BuildNugetPublishPackages.bat +++ /dev/null @@ -1,33 +0,0 @@ -SET OUTDIR=C:\Git\ServiceConnect\src\ -SET OUTDIRFILTERS=C:\Git\ServiceConnect\filters\ - -@ECHO === === === === === === === === - -@ECHO ===NUGET Publishing .... - -del *.nupkg - -:: comment - -NuGet pack "%OUTDIR%ServiceConnect\ServiceConnect.nuspec" -NuGet pack "%OUTDIR%ServiceConnect.Client.RabbitMQ\ServiceConnect.Client.RabbitMQ.nuspec" -::NuGet pack "%OUTDIR%ServiceConnect.Interfaces\ServiceConnect.Interfaces.nuspec" -::NuGet pack "%OUTDIR%ServiceConnect.Container.StructureMap\ServiceConnect.Container.StructureMap.nuspec" -::NuGet pack "%OUTDIR%ServiceConnect.Persistance.MongoDb\ServiceConnect.Persistance.MongoDb.nuspec" -::NuGet pack "%OUTDIR%ServiceConnect.Persistance.MongoDbSsl\ServiceConnect.Persistance.MongoDbSsl.nuspec" -::NuGet pack "%OUTDIR%ServiceConnect.Container.Ninject\ServiceConnect.Container.Ninject.nuspec" -::NuGet pack "%OUTDIRFILTERS%ServiceConnect.Filters.MessageDeduplication\ServiceConnect.Filters.MessageDeduplication\ServiceConnect.Filters.MessageDeduplication.nuspec" - - -nuget push ServiceConnect.3.1.11-pre.nupkg -Source https://www.nuget.org/api/v2/package -nuget push ServiceConnect.Client.RabbitMQ.3.1.10-pre.nupkg -Source https://www.nuget.org/api/v2/package -::nuget push ServiceConnect.Interfaces.3.1.3-pre.nupkg -Source https://www.nuget.org/api/v2/package -::nuget push ServiceConnect.Container.StructureMap.3.1.5-pre.nupkg -Source https://www.nuget.org/api/v2/package -::nuget push ServiceConnect.Persistance.MongoDb.3.1.3-pre.nupkg -Source https://www.nuget.org/api/v2/package -::nuget push ServiceConnect.Persistance.MongoDbSsl.3.1.3-pre.nupkg -Source https://www.nuget.org/api/v2/package -::nuget push ServiceConnect.Container.Ninject.3.1.5-pre.nupkg -Source https://www.nuget.org/api/v2/package -::nuget push ServiceConnect.Filters.MessageDeduplication.1.0.3-pre.nupkg -Source https://www.nuget.org/api/v2/package - -@ECHO === === === === === === === === - -PAUSE diff --git a/src/Tools/packaging/NuGet.exe b/src/Tools/packaging/NuGet.exe deleted file mode 100644 index be85ec2c4..000000000 Binary files a/src/Tools/packaging/NuGet.exe and /dev/null differ diff --git a/src/Tools/packaging/ServiceConnect.3.1.11-pre.nupkg b/src/Tools/packaging/ServiceConnect.3.1.11-pre.nupkg deleted file mode 100644 index 4a453b6bd..000000000 Binary files a/src/Tools/packaging/ServiceConnect.3.1.11-pre.nupkg and /dev/null differ diff --git a/src/Tools/packaging/ServiceConnect.Client.RabbitMQ.3.1.10-pre.nupkg b/src/Tools/packaging/ServiceConnect.Client.RabbitMQ.3.1.10-pre.nupkg deleted file mode 100644 index 2504b6c8d..000000000 Binary files a/src/Tools/packaging/ServiceConnect.Client.RabbitMQ.3.1.10-pre.nupkg and /dev/null differ diff --git a/src/Tools/packaging_netcore/BuildNugetPublishPackages.bat b/src/Tools/packaging_netcore/BuildNugetPublishPackages.bat deleted file mode 100644 index ceeee7f16..000000000 --- a/src/Tools/packaging_netcore/BuildNugetPublishPackages.bat +++ /dev/null @@ -1,35 +0,0 @@ -SET OUTDIR=C:\Git\ServiceConnect-CSharp\src\ -SET OUTDIRFILTERS=C:\Git\ServiceConnect-CSharp\filters\ - -@ECHO === === === === === === === === - -@ECHO ===NUGET Publishing .... - -del *.nupkg - -:: comment - -::NuGet pack "%OUTDIR%ServiceConnect\ServiceConnect.nuspec" -::NuGet pack "%OUTDIR%ServiceConnect.Client.RabbitMQ\ServiceConnect.Client.RabbitMQ.nuspec" -::NuGet pack "%OUTDIR%ServiceConnect.Interfaces\ServiceConnect.Interfaces.nuspec" -::NuGet pack "%OUTDIR%ServiceConnect.Container.StructureMap\ServiceConnect.Container.StructureMap.nuspec -::NuGet pack "%OUTDIR%ServiceConnect.Container.ServiceCollection\ServiceConnect.Container.ServiceCollection.nuspec -::NuGet pack "%OUTDIR%ServiceConnect.Persistance.MongoDb\ServiceConnect.Persistance.MongoDb.nuspec -NuGet pack "%OUTDIR%ServiceConnect.Persistance.MongoDbSsl\ServiceConnect.Persistance.MongoDbSsl.nuspec -::NuGet pack "%OUTDIRFILTERS%ServiceConnect.Filters.MessageDeduplication\ServiceConnect.Filters.MessageDeduplication\ServiceConnect.Filters.MessageDeduplication.nuspec" -::NuGet pack "%OUTDIRFILTERS%ServiceConnect.Filters.GzipCompression\ServiceConnect.Filters.GzipCompression\ServiceConnect.Filters.GzipCompression.nuspec" - -::nuget push ServiceConnect.5.0.17.nupkg -Source https://www.nuget.org/api/v2/package -::nuget push ServiceConnect.Client.RabbitMQ.5.0.11.nupkg -Source https://www.nuget.org/api/v2/package -::nuget push ServiceConnect.Interfaces.5.0.6.nupkg -Source https://www.nuget.org/api/v2/package -::nuget push ServiceConnect.Container.StructureMap.5.0.1.nupkg -Source https://www.nuget.org/api/v2/package -::nuget push ServiceConnect.Container.ServiceCollection.1.0.4.nupkg -Source https://www.nuget.org/api/v2/package -::nuget push ServiceConnect.Persistance.MongoDb.5.0.2.nupkg -Source https://www.nuget.org/api/v2/package -nuget push ServiceConnect.Persistance.MongoDbSsl.6.0.3.nupkg -Source https://www.nuget.org/api/v2/package -::nuget push ServiceConnect.Filters.MessageDeduplication.2.0.6.nupkg -Source https://www.nuget.org/api/v2/package -::nuget push ServiceConnect.Filters.GzipCompression.2.0.0-pre.nupkg -Source https://www.nuget.org/api/v2/package - - -@ECHO === === === === === === === === - -PAUSE diff --git a/src/Tools/packaging_netcore/ServiceConnect.Persistance.MongoDbSsl.6.0.3.nupkg b/src/Tools/packaging_netcore/ServiceConnect.Persistance.MongoDbSsl.6.0.3.nupkg deleted file mode 100644 index 558a84177..000000000 Binary files a/src/Tools/packaging_netcore/ServiceConnect.Persistance.MongoDbSsl.6.0.3.nupkg and /dev/null differ diff --git a/src/Tools/packaging_netcore/nuget.exe b/src/Tools/packaging_netcore/nuget.exe deleted file mode 100644 index 6d83a0b44..000000000 Binary files a/src/Tools/packaging_netcore/nuget.exe and /dev/null differ diff --git a/verify-all.sh b/verify-all.sh new file mode 100755 index 000000000..7091674ca --- /dev/null +++ b/verify-all.sh @@ -0,0 +1,139 @@ +#!/usr/bin/env bash +# Runs unit tests, E2E tests, a 5-minute harness soak (no chaos), and a 5-minute +# harness chaos soak. Exits non-zero on the first failure. Tears down the harness's +# Docker compose project on exit (including failure or interrupt). +# +# Designed for the project's cgroup-fenced dotnet wrapper at ~/.local/bin/dotnet: +# every dotnet build / test / run invocation uses -m:1, and the harness runs +# explicitly with --no-build after a single pre-build to avoid the parallel- +# restore + parallel-copy OOM that runs the wrapper into its 8 GB / 200-tasks +# ceiling. +# +# Usage: +# ./verify-all.sh +# +# Optional environment overrides: +# SKIP_UNIT=1 skip unit tests +# SKIP_E2E=1 skip E2E tests +# SKIP_HARNESS=1 skip the 5-minute soak +# SKIP_CHAOS=1 skip the 5-minute chaos soak +# HARNESS_DURATION duration for both harness runs (default 00:05:00) +# FLOW_TIMEOUT per-flow assertion timeout (default 00:01:30 — covers +# framework retry budget under chaos) +# CHAOS_INTERVAL seconds between kill cycles (default 00:00:50) +# CHAOS_DOWNTIME broker downtime per cycle (default 00:00:20) + +set -euo pipefail + +SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)" +cd "$SCRIPT_DIR" + +# Defaults — overridable via env. +HARNESS_DURATION="${HARNESS_DURATION:-00:05:00}" +FLOW_TIMEOUT="${FLOW_TIMEOUT:-00:01:30}" +CHAOS_INTERVAL="${CHAOS_INTERVAL:-00:00:50}" +CHAOS_DOWNTIME="${CHAOS_DOWNTIME:-00:00:20}" + +UNIT_PROJ="src/ServiceConnect.UnitTests/ServiceConnect.UnitTests.csproj" +E2E_PROJ="src/ServiceConnect.EndToEndTests/ServiceConnect.EndToEndTests.csproj" +HARNESS_PROJ="examples/StressHarness/src/ServiceConnect.Examples.StressHarness/ServiceConnect.Examples.StressHarness.csproj" +COMPOSE_FILE="examples/StressHarness/docker-compose.yml" +COMPOSE_PROJECT="stress-harness" + +REPORT_MD="out/report.md" + +section() { + printf '\n\033[1;36m==========================================================================\033[0m\n' + printf '\033[1;36m %s\033[0m\n' "$1" + printf '\033[1;36m==========================================================================\033[0m\n\n' +} + +fail() { + printf '\n\033[1;31mFAILED:\033[0m %s\n' "$1" >&2 + exit 1 +} + +teardown_compose() { + docker compose -f "$COMPOSE_FILE" -p "$COMPOSE_PROJECT" down --remove-orphans >/dev/null 2>&1 || true +} + +trap teardown_compose EXIT INT TERM + +bring_up_broker() { + # --wait blocks until services with healthchecks defined in the compose file + # report `healthy`. The rabbit service's healthcheck is `rabbitmqctl status`, + # which only succeeds once the AMQP layer is fully initialised — stronger + # than a TCP-port probe, which would unblock before connection.start can be + # serviced. + docker compose -f "$COMPOSE_FILE" -p "$COMPOSE_PROJECT" up -d --wait --wait-timeout 120 >/dev/null \ + || fail "broker did not reach healthy state within 120s" +} + +verify_harness_passed() { + local label="$1" + [ -f "$REPORT_MD" ] || fail "$label: expected $REPORT_MD but it was not written" + local flows_line + flows_line=$(grep -E '^\*\*Flows:\*\*' "$REPORT_MD" | head -1) + [ -n "$flows_line" ] || fail "$label: could not find Flows: line in $REPORT_MD" + # Format: "**Flows:** PASSED / TOTAL passed". Failure if PASSED != TOTAL. + local passed total + passed=$(printf '%s' "$flows_line" | sed -E 's/.*\*\*Flows:\*\* +([0-9]+) +\/ +([0-9]+) +passed.*/\1/') + total=$(printf '%s' "$flows_line" | sed -E 's/.*\*\*Flows:\*\* +([0-9]+) +\/ +([0-9]+) +passed.*/\2/') + if [ "$passed" != "$total" ]; then + printf '\n%s\n' "$flows_line" + printf '\n--- assertion failures ---\n' + awk '/## Assertion failures/,/## Failed flows/' "$REPORT_MD" || true + fail "$label: $((total - passed)) of $total flows failed (see $REPORT_MD)" + fi + printf '\033[1;32m%s\033[0m: %s\n' "$label OK" "$flows_line" +} + +# --------------------------------------------------------------------------- + +section "Pre-flight: single-CPU pre-build (avoids cgroup-fenced parallel OOM)" +dotnet build "$HARNESS_PROJ" -m:1 -nologo + +if [ "${SKIP_UNIT:-0}" != "1" ]; then + section "1/4 Unit tests" + dotnet test "$UNIT_PROJ" -m:1 -nologo --logger "console;verbosity=minimal" +fi + +if [ "${SKIP_E2E:-0}" != "1" ]; then + section "2/4 End-to-end tests (Testcontainers — broker + mongo per fixture)" + dotnet test "$E2E_PROJ" -m:1 -nologo --logger "console;verbosity=minimal" +fi + +if [ "${SKIP_HARNESS:-0}" != "1" ]; then + section "3/4 Stress harness — soak ${HARNESS_DURATION}, no chaos" + bring_up_broker + rm -f "$REPORT_MD" out/report.json + dotnet run --no-build --project "$HARNESS_PROJ" -- \ + --mode soak \ + --duration "$HARNESS_DURATION" \ + --rate 100 \ + --persistence inmemory \ + --chaos none \ + --flow-timeout "$FLOW_TIMEOUT" + verify_harness_passed "Stress harness (no chaos)" + teardown_compose +fi + +if [ "${SKIP_CHAOS:-0}" != "1" ]; then + section "4/4 Chaos harness — soak ${HARNESS_DURATION}, kill every ${CHAOS_INTERVAL} for ${CHAOS_DOWNTIME}" + bring_up_broker + rm -f "$REPORT_MD" out/report.json + dotnet run --no-build --project "$HARNESS_PROJ" -- \ + --mode soak \ + --duration "$HARNESS_DURATION" \ + --rate 100 \ + --persistence inmemory \ + --chaos docker \ + --chaos-interval "$CHAOS_INTERVAL" \ + --chaos-downtime "$CHAOS_DOWNTIME" \ + --chaos-compose-file "$COMPOSE_FILE" \ + --flow-timeout "$FLOW_TIMEOUT" + verify_harness_passed "Chaos harness" + teardown_compose +fi + +printf '\n\033[1;32mAll requested verification stages passed.\033[0m\n' diff --git a/website/.gitignore b/website/.gitignore new file mode 100644 index 000000000..6240da8b1 --- /dev/null +++ b/website/.gitignore @@ -0,0 +1,21 @@ +# build output +dist/ +# generated types +.astro/ + +# dependencies +node_modules/ + +# logs +npm-debug.log* +yarn-debug.log* +yarn-error.log* +pnpm-debug.log* + + +# environment variables +.env +.env.production + +# macOS-specific files +.DS_Store diff --git a/website/README.md b/website/README.md new file mode 100644 index 000000000..3fafe3a0e --- /dev/null +++ b/website/README.md @@ -0,0 +1,35 @@ +# ServiceConnect Documentation Site + +The source for [https://r-suite.github.io/ServiceConnect-CSharp/](https://r-suite.github.io/ServiceConnect-CSharp/). + +Built with [Astro](https://astro.build) + [Starlight](https://starlight.astro.build). The API reference under `/reference/` is hand-authored MDX. + +## Local development + +Prerequisites: Node.js 20+. + +From this directory: + +```bash +# Install dependencies. +npm ci + +# Run the dev server (http://localhost:4321/ServiceConnect-CSharp/). +npm run dev +``` + +The dev server hot-reloads Markdown changes in `src/content/docs/`. + +## Deployment + +Pushes to `master` that touch `website/**` or `.github/workflows/docs.yml` trigger `.github/workflows/docs.yml`, which rebuilds the site and deploys to GitHub Pages. + +The workflow can also be run manually on any branch via the Actions tab ("Run workflow") to verify the build without deploying. + +## One-time GitHub Pages setup + +In the GitHub repo: + +1. Go to **Settings → Pages**. +2. Set **Source** to **GitHub Actions**. +3. The first successful workflow run will publish the site at https://r-suite.github.io/ServiceConnect-CSharp/. diff --git a/website/astro.config.mjs b/website/astro.config.mjs new file mode 100644 index 000000000..ef8252611 --- /dev/null +++ b/website/astro.config.mjs @@ -0,0 +1,205 @@ +// @ts-check +import { defineConfig } from 'astro/config'; +import starlight from '@astrojs/starlight'; + +// https://astro.build/config +export default defineConfig({ + site: 'https://r-suite.github.io', + base: '/ServiceConnect-CSharp/', + integrations: [ + starlight({ + title: 'ServiceConnect', + description: + 'Asynchronous messaging for .NET. Distributed systems, done cleanly.', + favicon: '/favicon.png', + logo: { + light: './src/assets/logo-light.png', + dark: './src/assets/logo-dark.png', + replacesTitle: true, + }, + customCss: ['./src/styles/brand.css'], + components: { + Footer: './src/overrides/Footer.astro', + ThemeProvider: './src/overrides/ThemeProvider.astro', + }, + social: [ + { + icon: 'github', + label: 'GitHub', + href: 'https://github.com/R-Suite/ServiceConnect-CSharp', + }, + ], + sidebar: [ + { + label: 'Learn', + items: [ + { label: 'Getting Started', link: '/learn/getting-started/' }, + { + label: 'Core Concepts', + items: [ + { label: 'The Bus', link: '/learn/core-concepts/the-bus/' }, + { label: 'Messages', link: '/learn/core-concepts/messages/' }, + { label: 'Handlers', link: '/learn/core-concepts/handlers/' }, + { label: 'Endpoints', link: '/learn/core-concepts/endpoints/' }, + ], + }, + { + label: 'Messaging Patterns', + items: [ + { label: 'Pub/Sub', link: '/learn/messaging-patterns/pub-sub/' }, + { label: 'Point-to-Point', link: '/learn/messaging-patterns/point-to-point/' }, + { label: 'Request/Reply', link: '/learn/messaging-patterns/request-reply/' }, + { label: 'Competing Consumers', link: '/learn/messaging-patterns/competing-consumers/' }, + { label: 'Content-Based Routing', link: '/learn/messaging-patterns/content-based-routing/' }, + { label: 'Polymorphic Messages', link: '/learn/messaging-patterns/polymorphic-messages/' }, + { label: 'Routing Slip', link: '/learn/messaging-patterns/routing-slip/' }, + { label: 'Scatter-Gather', link: '/learn/messaging-patterns/scatter-gather/' }, + { label: 'Process Manager', link: '/learn/messaging-patterns/process-manager/' }, + { label: 'Aggregator', link: '/learn/messaging-patterns/aggregator/' }, + { label: 'Filters', link: '/learn/messaging-patterns/filters/' }, + { label: 'Streaming', link: '/learn/messaging-patterns/streaming/' }, + ], + }, + { + label: 'Operations', + items: [ + { label: 'Configuration', link: '/learn/operations/configuration/' }, + { label: 'Hosting & Lifecycle', link: '/learn/operations/hosting/' }, + { label: 'Clustering & Quorum Queues', link: '/learn/operations/clustering/' }, + { label: 'Error Handling', link: '/learn/operations/error-handling/' }, + { label: 'Idempotency', link: '/learn/operations/idempotency/' }, + { label: 'Cancellation', link: '/learn/operations/cancellation/' }, + { label: 'Observability', link: '/learn/operations/observability/' }, + ], + }, + ], + }, + { + label: 'API Reference', + collapsed: true, + items: [ + { label: 'Overview', link: '/reference/' }, + { + label: 'Bus', + items: [ + { label: 'IBus', link: '/reference/bus/ibus/' }, + { label: 'IBusConfiguration', link: '/reference/bus/ibusconfiguration/' }, + { label: 'AddServiceConnect', link: '/reference/bus/add-serviceconnect/' }, + ], + }, + { + label: 'Messages', + items: [ + { label: 'Message', link: '/reference/messages/message/' }, + { label: 'Envelope', link: '/reference/messages/envelope/' }, + { label: 'Message options', link: '/reference/messages/options/' }, + ], + }, + { + label: 'Handlers', + items: [ + { label: 'IMessageHandler', link: '/reference/handlers/imessagehandler/' }, + { label: 'IStreamHandler', link: '/reference/handlers/istreamhandler/' }, + { label: 'IConsumeContext', link: '/reference/handlers/iconsumecontext/' }, + { label: 'Event args', link: '/reference/handlers/event-args/' }, + ], + }, + { + label: 'Configuration', + items: [ + { label: 'ITransportConfiguration', link: '/reference/configuration/itransportconfiguration/' }, + { label: 'IQueueConfiguration', link: '/reference/configuration/iqueueconfiguration/' }, + { label: 'IPersistenceConfiguration', link: '/reference/configuration/ipersistenceconfiguration/' }, + { label: 'IPipelineConfiguration', link: '/reference/configuration/ipipelineconfiguration/' }, + ], + }, + { + label: 'Process Managers & Aggregators', + items: [ + { label: 'IProcessHandler', link: '/reference/process-managers/iprocesshandler/' }, + { label: 'IProcessManagerData', link: '/reference/process-managers/iprocessmanagerdata/' }, + { label: 'IProcessManagerPropertyMapper', link: '/reference/process-managers/iprocessmanagerpropertymapper/' }, + { label: 'Aggregator', link: '/reference/process-managers/aggregator/' }, + ], + }, + { + label: 'Filters & Middleware', + items: [ + { label: 'IFilter', link: '/reference/filters/ifilter/' }, + { label: 'IMessageProcessingMiddleware', link: '/reference/filters/imessageprocessingmiddleware/' }, + { label: 'ISendMessageMiddleware', link: '/reference/filters/isendmessagemiddleware/' }, + ], + }, + { + label: 'Telemetry', + items: [ + { label: 'ServiceConnect.Telemetry', link: '/reference/telemetry/' }, + ], + }, + { + label: 'Health Checks', + items: [ + { label: 'ServiceConnect.HealthChecks', link: '/reference/healthchecks/' }, + ], + }, + ], + }, + { + label: 'Extension Points', + collapsed: true, + items: [ + { label: 'Overview', link: '/reference/extension-points/' }, + { + label: 'Bus', + items: [ + { label: 'IRequestReplyManager', link: '/reference/extension-points/bus/irequestreplymanager/' }, + ], + }, + { + label: 'Persistence', + items: [ + { label: 'IAggregatorPersistor', link: '/reference/extension-points/persistence/iaggregatorpersistor/' }, + { label: 'IProcessManagerFinder', link: '/reference/extension-points/persistence/iprocessmanagerfinder/' }, + { label: 'ITimeoutStore', link: '/reference/extension-points/persistence/itimeoutstore/' }, + ], + }, + { + label: 'Serialization', + items: [ + { label: 'IMessageSerializer', link: '/reference/extension-points/serialization/imessageserializer/' }, + { label: 'IMessageTypeRegistry', link: '/reference/extension-points/serialization/imessagetyperegistry/' }, + ], + }, + { + label: 'Transport', + items: [ + { label: 'IConsumer', link: '/reference/extension-points/transport/iconsumer/' }, + { label: 'IProducer', link: 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a/website/package.json b/website/package.json new file mode 100644 index 000000000..1b912c69b --- /dev/null +++ b/website/package.json @@ -0,0 +1,17 @@ +{ + "name": "website", + "type": "module", + "version": "0.0.1", + "scripts": { + "dev": "astro dev", + "start": "astro dev", + "build": "astro build", + "preview": "astro preview", + "astro": "astro" + }, + "dependencies": { + "@astrojs/starlight": "^0.38.3", + "astro": "^6.0.1", + "sharp": "^0.34.2" + } +} \ No newline at end of file diff --git a/website/public/favicon.png b/website/public/favicon.png new file mode 100644 index 000000000..151b5854b Binary files /dev/null and b/website/public/favicon.png differ diff --git a/website/src/assets/logo-dark.png b/website/src/assets/logo-dark.png new file mode 100644 index 000000000..cb8d50de5 Binary files /dev/null and b/website/src/assets/logo-dark.png differ diff --git a/website/src/assets/logo-icon.svg b/website/src/assets/logo-icon.svg new file mode 100644 index 000000000..6736f25d7 --- /dev/null +++ b/website/src/assets/logo-icon.svg @@ -0,0 +1 @@ + \ No newline at end of file diff --git a/website/src/assets/logo-light.png b/website/src/assets/logo-light.png new file mode 100644 index 000000000..54fdbbf62 Binary files /dev/null and b/website/src/assets/logo-light.png differ diff --git a/website/src/assets/logo-wordmark.svg b/website/src/assets/logo-wordmark.svg new file mode 100644 index 000000000..526f4cc07 --- /dev/null +++ b/website/src/assets/logo-wordmark.svg @@ -0,0 +1,8 @@ + diff --git a/website/src/components/FeatureGrid.astro b/website/src/components/FeatureGrid.astro new file mode 100644 index 000000000..0f8a4ca93 --- /dev/null +++ b/website/src/components/FeatureGrid.astro @@ -0,0 +1,58 @@ +--- +import { CardGrid, LinkCard } from '@astrojs/starlight/components'; + +const base = import.meta.env.BASE_URL.replace(/\/$/, ''); +--- + + + + + + + + + + + + + diff --git a/website/src/components/Quickstart.astro b/website/src/components/Quickstart.astro new file mode 100644 index 000000000..aa03a1afb --- /dev/null +++ b/website/src/components/Quickstart.astro @@ -0,0 +1,57 @@ +--- +// 60-second quickstart card for the homepage. +// Matches the brainstorming mockup approved in the design spec. +--- + +
+

60-second quickstart

+ 
# Install
+$ dotnet add package ServiceConnect
+$ dotnet add package ServiceConnect.Client.RabbitMQ
+
+// Configure & publish
+services.AddServiceConnect(b =>
+    b.UseRabbitMQ(t => t.Host = "localhost"));
+
+await bus.PublishAsync(new OrderPlaced(correlationId));
+
+ + diff --git a/website/src/content.config.ts b/website/src/content.config.ts new file mode 100644 index 000000000..d9ee8c9d1 --- /dev/null +++ b/website/src/content.config.ts @@ -0,0 +1,7 @@ +import { defineCollection } from 'astro:content'; +import { docsLoader } from '@astrojs/starlight/loaders'; +import { docsSchema } from '@astrojs/starlight/schema'; + +export const collections = { + docs: defineCollection({ loader: docsLoader(), schema: docsSchema() }), +}; diff --git a/website/src/content/docs/index.mdx b/website/src/content/docs/index.mdx new file mode 100644 index 000000000..2a2e9acb3 --- /dev/null +++ b/website/src/content/docs/index.mdx @@ -0,0 +1,39 @@ +--- +title: ServiceConnect +description: Asynchronous messaging for .NET. Distributed systems, done cleanly. +template: splash +head: + - tag: title + content: ServiceConnect — Asynchronous messaging for .NET +hero: + tagline: | + Asynchronous messaging for .NET. Distributed systems, done cleanly — + pub/sub, process managers, routing slips, batteries included. + image: + file: ../../assets/logo-icon.svg + alt: ServiceConnect logo + actions: + - text: Get Started + link: /ServiceConnect-CSharp/learn/getting-started/ + icon: right-arrow + variant: primary + - text: API Reference + link: /ServiceConnect-CSharp/reference/ + icon: open-book + variant: secondary + - text: View on GitHub + link: https://github.com/R-Suite/ServiceConnect-CSharp + icon: external + variant: secondary +--- + +import Quickstart from '../../components/Quickstart.astro'; +import FeatureGrid from '../../components/FeatureGrid.astro'; + + + +## Messaging patterns, batteries included + +ServiceConnect ships first-class implementations of the patterns you actually reach for when building distributed .NET systems — not a DSL to bolt them together yourself. + + diff --git a/website/src/content/docs/learn/core-concepts/endpoints.mdx b/website/src/content/docs/learn/core-concepts/endpoints.mdx new file mode 100644 index 000000000..1a5ffa4ed --- /dev/null +++ b/website/src/content/docs/learn/core-concepts/endpoints.mdx @@ -0,0 +1,142 @@ +--- +title: Endpoints +description: How ServiceConnect chooses where a message goes — queue names, queue mappings, and the difference between Send and Publish routing. +--- + +An **endpoint** is a queue on the broker. Every service owns one, identified by name, and every send or publish eventually resolves to a queue that RabbitMQ can route to. Understanding how that resolution happens is the difference between "it works" and "it works and you know why." + +This page covers three things: how you name your own queue, how `SendAsync` chooses a destination, and how `PublishAsync` reaches subscribers without naming one at all. + +## Your queue + +A bus needs a queue name. You configure it once, when the bus is built: + +```csharp +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(/* … */); + builder.ConfigureQueues(queues => + { + queues.QueueName = "orders"; + queues.ErrorQueueName = "orders.errors"; // optional + queues.AuditQueueName = "orders.audit"; // optional + queues.AuditingEnabled = false; + queues.PurgeQueueOnStartup = false; + queues.DisableErrors = false; // set true to suppress dead-lettering entirely + }); +}); +``` + +Five things happen from that block: + +- **`QueueName`** is this bus's inbox. When `StartConsumingAsync` runs, ServiceConnect declares the queue on the broker (creating it if it doesn't exist) and starts consuming from it. Every message sent to `"orders"` from anywhere in the system lands here. +- **`ErrorQueueName`** is where a message goes after its retry budget is exhausted. Defaults to `"errors"` when you don't set it. Operationally, this is the queue you watch: messages accumulating here mean something is wrong. +- **`AuditQueueName`** only matters if `AuditingEnabled = true`. When auditing is on, every successfully handled message is copied to this queue. Useful for compliance or reconciliation; off by default because it doubles broker traffic. +- **`PurgeQueueOnStartup`** does exactly what it says — it clears the queue when the bus starts. Convenient for development, dangerous for production. Default is `false`. +- **`DisableErrors`** skips dead-lettering entirely when `true` — failed messages are discarded rather than forwarded to the error queue. Useful in ephemeral or test environments where an error queue would be noise; leave `false` in production. + +### Naming + +ServiceConnect makes no assumptions about queue naming. You can use any string RabbitMQ will accept. A few conventions that pay off: + +- **Use the service name**, not the machine name: `orders`, `payments`, `notifications`. A queue outlives the process that consumes it. +- **Keep names stable.** Renaming a queue means every other service that sends to it needs to know. Treat the queue name like a public API. +- **Lower-kebab-case** reads well in RabbitMQ's management UI and survives copy-paste across shells without shell-quoting trouble. + +## Send: you name the destination + +`SendAsync` is point-to-point. You tell ServiceConnect where the message goes. + +There are two ways to do that. + +### Inline, on the call site + +```csharp +await bus.SendAsync( + new PlaceOrder(Guid.NewGuid()) { Cart = cart }, + new SendOptions { EndPoint = "orders" }); +``` + +The `SendOptions.EndPoint` value is the destination queue name. The message travels to exactly that queue. Note the capitalisation — it's `EndPoint`, not `Endpoint`. + +Use `SendToManyAsync` to send one message to several queues: + +```csharp +await bus.SendToManyAsync( + new StockUpdated(correlationId) { Sku = "widget", Quantity = 10 }, + new[] { "pricing", "search-index", "reporting" }); +``` + +This is still a point-to-point send — one copy of the message lands in each listed queue. It is not pub/sub; the sender decides the fan-out. + +### Configured up front + +When a message type always goes to the same queue, you can wire the mapping at startup and omit `SendOptions` at the call site: + +```csharp +services.AddServiceConnect(builder => +{ + builder.ConfigureQueues(queues => + { + queues.QueueName = "web-api"; + queues.AddQueueMapping(typeof(PlaceOrder), "orders"); + queues.AddQueueMapping(typeof(RefundRequested), "payments"); + }); +}); + +// Later: +await bus.SendAsync(new PlaceOrder(Guid.NewGuid()) { Cart = cart }); +``` + +ServiceConnect looks up `PlaceOrder` in the mapping table and routes to `"orders"` without being told again. If no mapping exists **and** no `SendOptions.EndPoint` is supplied, the send fails: ServiceConnect refuses to guess. + +You can also map one message to several queues: + +```csharp +queues.AddQueueMapping(typeof(StockUpdated), new[] { "pricing", "search-index" }); +``` + +Inline `SendOptions` always wins over the configured mapping. That lets you configure the common case and override it when you need to. + +### When to use which + +- **Inline** when the destination is dynamic — the handler decides based on content, or the caller is a test that picks a queue name per run. +- **Configured** when the destination is a static part of your system's topology. Having it in one place makes the service's outbound contracts obvious to anyone reading the bus setup. + +## Publish: subscribers name themselves + +`PublishAsync` does not take a destination. You don't know — and shouldn't care — who is listening. That knowledge lives on the *consumer* side. + +```csharp +await bus.PublishAsync(new OrderPlaced(correlationId) { OrderId = "order-100" }); +``` + +ServiceConnect publishes through a per-message-type RabbitMQ fanout exchange. The exchange name is derived from the message type — its full type name with the namespace dots removed (`Type.FullName.Replace(".", string.Empty)`); it is not the type's plain `.Name`. Any consumer whose bus has registered a handler for `OrderPlaced` automatically creates a binding from that exchange to its own queue when it starts consuming. Subscribers come and go; the publisher never changes. + +The upshot: + +- To start receiving an event, **register a handler and start the bus**. The binding is created for you. +- To stop receiving, **remove the handler and restart**. The binding is torn down. +- The publisher needs no configuration change to gain or lose subscribers. + +This is the whole point of pub/sub — the shape of the listener set is decoupled from the code that produces events. + +## Error and audit endpoints + +Two special-purpose queues live alongside your main queue: + +- **Error queue** — receives messages that exhausted their retry budget, wrapped with headers describing the failure. Messages here do not replay themselves; someone (a person, a dead-letter UI, a scheduled job) has to look at them and decide. See [Error Handling](/ServiceConnect-CSharp/learn/operations/error-handling/). +- **Audit queue** — receives a copy of every successfully handled message when `AuditingEnabled = true`. Not consumed by ServiceConnect; it is yours to drain however you want (store it, forward it, analyse it). + +Both are queues like any other — you could consume them with a separate bus if you wanted to react to errors or audits programmatically. + +## Reference + +- [`ITransportConfiguration`](/ServiceConnect-CSharp/reference/configuration/itransportconfiguration/) — broker-level config +- [`IQueueConfiguration`](/ServiceConnect-CSharp/reference/configuration/iqueueconfiguration/) — per-queue config + +## What comes next + +- [Pub/Sub](/ServiceConnect-CSharp/learn/messaging-patterns/pub-sub/) — publishers and subscribers in depth. +- [Point-to-Point](/ServiceConnect-CSharp/learn/messaging-patterns/point-to-point/) — the canonical send pattern with a worked example. +- [Routing Slip](/ServiceConnect-CSharp/learn/messaging-patterns/routing-slip/) — for when the destination isn't one queue, it's a list. diff --git a/website/src/content/docs/learn/core-concepts/handlers.mdx b/website/src/content/docs/learn/core-concepts/handlers.mdx new file mode 100644 index 000000000..d8323d7c8 --- /dev/null +++ b/website/src/content/docs/learn/core-concepts/handlers.mdx @@ -0,0 +1,189 @@ +--- +title: Handlers +description: How incoming messages reach your code — IMessageHandler, IConsumeContext, registration, and handler lifetime. +--- + +A **handler** is the code that runs when a message arrives. You write one class per message type (or more, if you want several things to happen for the same message), implement a single interface, and ServiceConnect takes care of dispatch: it pulls the message off the queue, deserialises it, resolves your handler from the container, and invokes you. + +Handlers are the simplest unit of work in a ServiceConnect application — and the one you will write most often. + +## The interface + +```csharp +public interface IMessageHandler where TMessage : Message +{ + Task HandleAsync(TMessage message, IConsumeContext context, CancellationToken cancellationToken = default); +} +``` + +One method you implement. The pipeline passes the per-message context directly as a parameter. + +```csharp +using ServiceConnect.Interfaces; + +public sealed class WorkSubmittedHandler : IMessageHandler +{ + public async Task HandleAsync(WorkSubmitted message, IConsumeContext context, CancellationToken cancellationToken = default) + { + Console.WriteLine($"Processing {message.WorkId}"); + await Task.CompletedTask; + } +} +``` + +The contravariant `in` on the generic parameter means a handler written for a base message type also runs for any derived message types registered against the same handler. Most handlers target a single concrete type. + +## The consume context + +`IConsumeContext` is passed directly to `HandleAsync` by the dispatch pipeline. It exposes the things a handler needs to do something useful beyond just reading the incoming message: + +```csharp +public interface IConsumeContext +{ + IBus Bus { get; } + IReadOnlyDictionary Headers { get; } + string? MessageId { get; } + Guid CorrelationId { get; } + CancellationToken CancellationToken { get; } + + Task ReplyAsync( + TReply message, + ReplyOptions? options = null, + CancellationToken cancellationToken = default) where TReply : Message; +} +``` + +A few things worth knowing: + +- **`Bus`** is the same `IBus` you inject elsewhere. Prefer using `context.Bus` inside a handler — it makes the data-flow explicit: "this message produced that message." +- **`CorrelationId`** is the incoming message's correlation id. Pass it through to any outgoing messages you produce in this handler so logs and process managers can tie them back to the same conversation. +- **`CancellationToken`** is tied to the consumer's lifetime. When the bus stops consuming, the token fires. Long-running handlers should pass it to downstream awaits so they unwind cleanly on shutdown. +- **`ReplyAsync`** is the correct way to reply to a request sent by `SendRequestAsync`. It sets the `ResponseMessageId` header that ServiceConnect uses to correlate the reply. A plain `Bus.SendAsync` back to the caller **will not** resolve the pending request — always use `ReplyAsync` when replying to a request. + +A typical request/reply handler: + +```csharp +public sealed class QuoteRequestHandler : IMessageHandler +{ + public async Task HandleAsync(QuoteRequest message, IConsumeContext context, CancellationToken cancellationToken = default) + { + var price = Quote(message.ProductCode); + await context.ReplyAsync(new QuoteResponse(message.CorrelationId) + { + Price = price, + }); + } +} +``` + +## Registering handlers + +ServiceConnect offers two ways to tell the bus which handlers exist. + +### Scan + +For full applications, let the bus find handlers by reflection. Set `ScanForMessageHandlers` in the bus configuration and ServiceConnect walks your assemblies looking for classes that implement `IMessageHandler<>`: + +```csharp +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(/* … */); + builder.ConfigureQueues(q => q.QueueName = "orders"); + builder.ConfigureBus(bus => bus.ScanForMessageHandlers = true); +}); +``` + +By default the scanner searches `AppDomain.CurrentDomain.GetAssemblies()`. If your handlers live in a library that isn't yet loaded at startup, register it explicitly: + +```csharp +services.AddServiceConnect(builder => +{ + builder.ConfigureBus(bus => bus.ScanForMessageHandlers = true); + builder.ScanAssemblies(typeof(WorkSubmittedHandler).Assembly); +}); +``` + +### Explicit registration + +For tests, examples, or when you want a single place to see every handler, register a `HandlerReference` list manually: + +```csharp +services.AddSingleton>(new List +{ + new() { HandlerType = typeof(WorkSubmittedHandler), MessageType = typeof(WorkSubmitted) }, + new() { HandlerType = typeof(OrderPlacedAuditHandler), MessageType = typeof(OrderPlaced) }, +}); + +// With scanning disabled, AddServiceConnect does not register handler types itself. +// Register each handler under its IMessageHandler interface so the dispatcher can resolve +// it: the HandlerReference list maps message types to handlers; these make them DI-resolvable. +services.AddTransient, WorkSubmittedHandler>(); +services.AddTransient, OrderPlacedAuditHandler>(); + +services.AddServiceConnect(builder => +{ + builder.ConfigureBus(bus => bus.ScanForMessageHandlers = false); + // … +}); +``` + +This is what the examples in this repository use, and what the [Getting Started](/ServiceConnect-CSharp/learn/getting-started/) guide shows. Keeping handler registration explicit makes the wiring obvious to any reader. + +You can combine approaches — enable scanning and also add a `HandlerReference` entry for something the scanner wouldn't pick up, like a handler type resolved dynamically. + +## Handler lifetime + +When scanning is enabled (the default), ServiceConnect registers discovered handlers as transient and rejects any handler pre-registered as a singleton at `AddServiceConnect` time. With explicit registration (scanning off) you register each handler yourself — as transient or scoped, never singleton. + +```csharp +// This will throw during AddServiceConnect: +services.AddSingleton(); +services.AddServiceConnect(builder => { /* … */ }); +``` + +If you need shared state across handlers — a cache, a database connection pool, a metrics client — inject it. The handler stays transient; the dependency is a singleton that the handler resolves from the container. + +```csharp +public sealed class WorkSubmittedHandler(IWorkItemStore store, ILogger log) + : IMessageHandler +{ + public async Task HandleAsync(WorkSubmitted message, IConsumeContext context, CancellationToken cancellationToken = default) + { + log.LogInformation("Received {WorkId}", message.WorkId); + await store.SaveAsync(message); + } +} +``` + +## Multiple handlers for one message + +Any number of `IMessageHandler` implementations can coexist for the same `T`. When a message of that type arrives, every registered handler runs. This is useful for splitting cross-cutting concerns — one handler does the work, another writes an audit row, a third emits a metric. + +```csharp +public sealed class RefundDomainHandler : IMessageHandler { /* does the refund */ } +public sealed class RefundAuditHandler : IMessageHandler { /* records it */ } +public sealed class RefundMetricsHandler : IMessageHandler { /* emits a gauge */ } +``` + +All three are registered, all three run, each with its own transient instance. If any handler throws, the message is retried and eventually moved to the error queue per the bus's retry policy — so prefer short, idempotent handlers that can cope with being invoked more than once. + +## Exceptions and retries + +If `HandleAsync` throws, ServiceConnect applies the configured retry policy and, after retries are exhausted, forwards the message to the error queue. Write handlers to be: + +- **Idempotent** — the same message may be delivered again after a transient failure. Design the effect so re-delivery is safe (use the `CorrelationId` as a deduplication key, upsert rather than insert). +- **Quick to recognise failure** — blocking a consumer for minutes on a downstream timeout blocks every other message in the queue. Wrap external calls in reasonable timeouts. + +See [Error Handling](/ServiceConnect-CSharp/learn/operations/error-handling/) for how to customise the behaviour. + +## Reference + +- [`IMessageHandler`](/ServiceConnect-CSharp/reference/handlers/imessagehandler/) — the handler contract +- [`IConsumeContext`](/ServiceConnect-CSharp/reference/handlers/iconsumecontext/) — per-message context +- [`IStreamHandler`](/ServiceConnect-CSharp/reference/handlers/istreamhandler/) — streaming messages + +## What comes next + +- [Endpoints](/ServiceConnect-CSharp/learn/core-concepts/endpoints/) — where sends land and how subscribers are chosen. +- [Pub/Sub](/ServiceConnect-CSharp/learn/messaging-patterns/pub-sub/) — publish a message and let multiple handlers react. +- [Request/Reply](/ServiceConnect-CSharp/learn/messaging-patterns/request-reply/) — for when a handler needs to return a value. diff --git a/website/src/content/docs/learn/core-concepts/messages.mdx b/website/src/content/docs/learn/core-concepts/messages.mdx new file mode 100644 index 000000000..f4d55e776 --- /dev/null +++ b/website/src/content/docs/learn/core-concepts/messages.mdx @@ -0,0 +1,130 @@ +--- +title: Messages +description: The contract types ServiceConnect moves between services — base class, correlation id, serialisation, and design guidance. +--- + +A **message** is the contract your services agree on. It is a plain CLR type that inherits from `ServiceConnect.Interfaces.Message`, carries a correlation id, and travels between services as serialised bytes. + +Keep contracts boring on purpose. They are the most-shared part of a distributed system and the part you least want to break. + +## The base class + +```csharp +public class Message(Guid correlationId) : IHasCorrelationId +{ + public Guid CorrelationId { get; init; } = correlationId; +} +``` + +That's the entire base. One property — `CorrelationId` — wired through a primary constructor. The `init` accessor allows deserialisers and object-initializer expressions to populate it, but ordinary post-construction code cannot mutate it. + +ServiceConnect uses the correlation id to **relate related messages across a conversation**: a request and its reply, a command and the events it triggers, every message produced by a process manager instance. If you reply to a request, the reply carries the same correlation id as the request. If you publish an event in response to a command, standard practice is to pass the incoming correlation id through to the outgoing event. + +## Defining a message + +```csharp +using ServiceConnect.Interfaces; + +public sealed class OrderPlaced(Guid correlationId) : Message(correlationId) +{ + public string OrderId { get; init; } = string.Empty; + public decimal Total { get; init; } + public DateTime PlacedAt { get; init; } +} +``` + +A few conventions worth following: + +- **Primary constructor, passing `correlationId` through**. This is the idiomatic C# 12 form and matches the pattern in every example project. +- **`sealed`**. Messages are contracts, not inheritance targets. Sealing keeps your contract closed and stops a subclass from silently changing the serialised shape. +- **`init`-only properties**. A message should be immutable once constructed — nothing downstream should be able to mutate it during dispatch. +- **Non-null defaults** for reference types (`= string.Empty`, `= Array.Empty()`) so deserialisation never leaves a property `null` by omission. + +## Where messages live + +Put message contracts in their **own project** that both the sender and the receiver reference. In the examples directory, every pattern has a `Contracts` project next to its sender and consumer: + +``` +PointToPoint/ + src/ + ServiceConnect.Examples.PointToPoint.Contracts/ ← shared by both sides + ServiceConnect.Examples.PointToPoint.Sender/ + ServiceConnect.Examples.PointToPoint.Consumer/ +``` + +That shape keeps the contract physically separate from the code that uses it, which is exactly what you want when you version one side independently of the other. + +The `Contracts` project needs a reference to `ServiceConnect.Interfaces` so it can see the `Message` base: + +```bash +dotnet add Your.Contracts package ServiceConnect.Interfaces +``` + +## Serialisation + +The default `IMessageSerializer` is `SystemTextJsonMessageSerializer` (backed by System.Text.Json). Messages are serialised to JSON and travel as a byte array in the AMQP payload. + +You can replace the serialiser by registering your own `IMessageSerializer` singleton before `AddServiceConnect`: + +```csharp +services.AddSingleton(); +services.AddServiceConnect(/* … */); +``` + +But don't do that unless you have a concrete reason. JSON is the interop default for a reason — it survives logging, tooling, manual inspection in the RabbitMQ management UI, and polyglot consumers that might eventually be written in something other than .NET. + +## Designing contracts that age well + +Messages are the surface that binds services together. Changes to a message type are essentially API changes to every consumer of that type. A few rules that save pain later: + +**Add fields; don't change fields.** JSON serialisation tolerates new optional properties on either side. Renaming a property, changing a type, or making an optional field required breaks every consumer that hasn't shipped the new contract yet. + +**Inheritance is supported, but use it deliberately.** A single level of inheritance (`OrderPlaced : DomainEvent : Message`) lets one handler catch a whole category of events — useful for audit, metrics, and outbox subscribers. See [Polymorphic Messages](/ServiceConnect-CSharp/learn/messaging-patterns/polymorphic-messages/) for the pattern. Keep the hierarchy shallow: deep trees make the serialised shape harder to reason about, especially for polyglot consumers. + +**Keep them small.** A message names a fact ("an order was placed") and carries just enough data for a handler to act or to look the rest up. If your message exceeds a couple of kilobytes, you probably want a reference id rather than the full payload. For genuinely large payloads use [Streaming](/ServiceConnect-CSharp/learn/messaging-patterns/streaming/). + +**Separate commands from events.** A **command** names an intent (`PlaceOrder`, `RefundRequested`) and typically goes to one handler via `SendAsync`. An **event** names a fact (`OrderPlaced`, `RefundIssued`) and typically goes to many subscribers via `PublishAsync`. Naming commands as imperatives and events as past-tense facts makes intent obvious at the call site. + +## Correlation id in practice + +When you create a fresh conversation — a user clicks Checkout, a scheduled job fires — generate a new `Guid`: + +```csharp +await bus.SendAsync( + new PlaceOrder(Guid.NewGuid()) { Cart = cart }, + new SendOptions { EndPoint = "orders" }); +``` + +When you produce a message **in response to** another, pass the incoming correlation id through: + +```csharp +public sealed class PlaceOrderHandler : IMessageHandler +{ + public async Task HandleAsync(PlaceOrder message, IConsumeContext context, CancellationToken cancellationToken = default) + { + // Carry the correlation id forward so downstream logs and + // process managers can tie every subsequent message back to + // this conversation. + await context.Bus.PublishAsync(new OrderPlaced(message.CorrelationId) + { + OrderId = Guid.NewGuid().ToString(), + Total = message.Cart.Total, + PlacedAt = DateTime.UtcNow, + }); + } +} +``` + +The reply helper on `IConsumeContext` does this for you automatically — replies always carry the request's correlation id. For `PublishAsync` and forward `SendAsync` calls, it's on you to carry it through. + +## Reference + +- [`Message`](/ServiceConnect-CSharp/reference/messages/message/) — base class and correlation id +- [`Envelope`](/ServiceConnect-CSharp/reference/messages/envelope/) — transport-level wrapper +- [Message options](/ServiceConnect-CSharp/reference/messages/options/) — `PublishOptions`, `SendOptions`, `RequestOptions`, `ReplyOptions` + +## What comes next + +- [Handlers](/ServiceConnect-CSharp/learn/core-concepts/handlers/) — how incoming messages reach code. +- [Endpoints](/ServiceConnect-CSharp/learn/core-concepts/endpoints/) — how sends and publishes find their destination. +- [Pub/Sub](/ServiceConnect-CSharp/learn/messaging-patterns/pub-sub/) — the first messaging pattern you'll likely reach for. diff --git a/website/src/content/docs/learn/core-concepts/the-bus.mdx b/website/src/content/docs/learn/core-concepts/the-bus.mdx new file mode 100644 index 000000000..d608fd457 --- /dev/null +++ b/website/src/content/docs/learn/core-concepts/the-bus.mdx @@ -0,0 +1,165 @@ +--- +title: The Bus +description: What IBus represents, how it's created, and the operations it exposes for sending, publishing, requesting, routing, and consuming messages. +--- + +The **bus** is the handle your code uses to talk to the rest of the system. Concretely, it is the `IBus` interface. Once you have one, you can send messages to a specific queue, publish them to subscribers, fire a request and await a reply, route through a chain of services, stream large payloads, or consume messages from your own queue. + +```csharp +public interface IBus : IAsyncDisposable +{ + Task SendAsync(T message, SendOptions? options = null, CancellationToken cancellationToken = default) where T : Message; + Task SendToManyAsync(T message, IReadOnlyList endPoints, SendOptions? options = null, CancellationToken cancellationToken = default) where T : Message; + Task PublishAsync(T message, PublishOptions? options = null, CancellationToken cancellationToken = default) where T : Message; + Task SendRequestAsync(TRequest message, RequestOptions? options = null, CancellationToken cancellationToken = default) + where TRequest : Message where TReply : Message; + Task RouteAsync(T message, IReadOnlyList destinations, CancellationToken cancellationToken = default) where T : Message; + IMessageBusWriteStream CreateStream(string endpoint) where T : Message; + + Task StartConsumingAsync(CancellationToken cancellationToken = default); + Task StopConsumingAsync(CancellationToken cancellationToken = default); + bool IsConsuming { get; } + // …plus SendRequestMultiAsync, PublishRequestAsync, RequestTimeoutAsync +} +``` + +You do **not** construct `IBus` directly. You configure it, register it with dependency injection, and resolve it by type. + +## Creating a bus + +ServiceConnect integrates with `Microsoft.Extensions.DependencyInjection`. The entry point is `AddServiceConnect`: + +```csharp +var services = new ServiceCollection(); +services.AddLogging(); + +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(transport => + { + transport.Host = "localhost"; + transport.Username = "guest"; + transport.Password = "guest"; + }); + + builder.ConfigureQueues(queues => queues.QueueName = "orders"); +}); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); +``` + +The builder composes four concerns: + +- **Transport** — which broker the bus talks to. `UseRabbitMQ` is the supported transport. +- **Queues** — the name of this service's queue, plus error and audit queue names, plus any message-to-queue routing for `SendAsync`. See [Endpoints](/ServiceConnect-CSharp/learn/core-concepts/endpoints/). +- **Bus** — runtime behaviour flags: handler scanning, auto-start, consumer count, exception handler. See `IBusConfiguration`. +- **Persistence** — optional. Required for process managers, aggregators, and persisted timeouts. Configured via `UseMongoDbPersistence` or `UseInMemoryPersistence`. + +## Lifecycle + +In a hosted application (ASP.NET Core, Worker Service, generic host), the bus is a **singleton** registered by `AddServiceConnect`. It starts consuming automatically when the host starts, and shuts down cleanly on host stop. + +```csharp +var builder = Host.CreateApplicationBuilder(args); +builder.Services.AddServiceConnect(sc => +{ + sc.UseRabbitMQ(t => { /* … */ }); + sc.ConfigureQueues(q => q.QueueName = "orders"); +}); +await builder.Build().RunAsync(); +``` + +For a sender-only process — something that produces a message and exits, like the Getting Started sender — you can skip `StartConsumingAsync` and just call `SendAsync`. The bus still needs a queue name so replies and errors have somewhere to land. + +### Stop is terminal + +Calling `StopConsumingAsync` disposes the underlying consumer. After that, `StartConsumingAsync` throws `InvalidOperationException`. If you need to resume, dispose the bus and create a new one. This makes lifecycle reasoning explicit: a bus instance is either *new*, *consuming*, or *stopped* — never *restarted*. + +```csharp +await bus.StopConsumingAsync(); +await bus.StartConsumingAsync(); // throws — stop is terminal +``` + +## What the bus does + +All outbound operations take a subtype of `Message` so ServiceConnect can flow a correlation id and attach headers. + +### Send + +Point-to-point. You know the destination queue. ServiceConnect writes one message to that queue. + +```csharp +await bus.SendAsync( + new WorkSubmitted(Guid.NewGuid()) { WorkId = "work-001" }, + new SendOptions { EndPoint = "fulfillment" }); +``` + +### Publish + +Fan-out. Subscribers of the message type receive a copy. You don't name destinations; RabbitMQ's exchange handles the fan-out. + +```csharp +await bus.PublishAsync(new OrderPlaced(correlationId) { OrderId = "order-100" }); +``` + +### Request / reply + +A message that expects a single response, or a bounded set of responses. + +```csharp +var quote = await bus.SendRequestAsync( + new QuoteRequested(Guid.NewGuid()) { Sku = "widget" }); +``` + +The caller `await`s the reply. Under the hood, ServiceConnect correlates the reply using the `ResponseMessageId` header, which the reply handler sets to the value of the outbound `RequestMessageId`. + +### Route + +A message flows through an ordered list of destinations. Each service does its work and forwards along the slip. + +```csharp +await bus.RouteAsync(message, new[] { "validate", "enrich", "notify" }); +``` + +See [Routing Slip](/ServiceConnect-CSharp/learn/messaging-patterns/routing-slip/) for the pattern it implements. + +### Stream + +For payloads too large for a single message, `CreateStream` opens a chunked write stream to a named endpoint. The receiving side exposes a matching `IMessageBusReadStream`. + +### Scheduled timeout + +Process managers use `RequestTimeoutAsync` to ask the bus to deliver a `TimeoutMessage` back to this queue after a delay. It is the mechanism behind saga timeouts. + +```csharp +await bus.RequestTimeoutAsync(processManagerId, TimeSpan.FromMinutes(30)); +``` + +## Injecting the bus into your code + +Inside a handler, prefer `IConsumeContext.Bus` — it is the same `IBus` instance but makes the dependency explicit at the point of use. Elsewhere, take `IBus` as a constructor parameter: + +```csharp +public sealed class PaymentsGateway(IBus bus) +{ + public Task RefundAsync(Guid orderId) => + bus.SendAsync( + new RefundRequested(orderId) { OrderId = orderId.ToString() }, + new SendOptions { EndPoint = "payments" }); +} +``` + +The bus is thread-safe. One instance is shared across the process. + +## Reference + +- [`IBus`](/ServiceConnect-CSharp/reference/bus/ibus/) — runtime API surface +- [`IBusConfiguration`](/ServiceConnect-CSharp/reference/bus/ibusconfiguration/) — how the bus gets wired +- [`AddServiceConnect`](/ServiceConnect-CSharp/reference/bus/add-serviceconnect/) — DI entry point + +## What comes next + +- [Messages](/ServiceConnect-CSharp/learn/core-concepts/messages/) — the contracts you pass to the bus. +- [Handlers](/ServiceConnect-CSharp/learn/core-concepts/handlers/) — how incoming messages reach your code. +- [Endpoints](/ServiceConnect-CSharp/learn/core-concepts/endpoints/) — how `Send` chooses a queue and how subscriptions work. diff --git a/website/src/content/docs/learn/getting-started.mdx b/website/src/content/docs/learn/getting-started.mdx new file mode 100644 index 000000000..3b444343b --- /dev/null +++ b/website/src/content/docs/learn/getting-started.mdx @@ -0,0 +1,243 @@ +--- +title: Getting Started +description: Install ServiceConnect, start RabbitMQ, and send your first message between two .NET services. +--- + +This guide walks you through building a minimal distributed system with ServiceConnect: a **sender** that submits work and a **consumer** that processes it. You will install the NuGet packages, start RabbitMQ locally with Docker, and run two console applications that talk to each other over a queue. + +When you finish, you will have a working message flow you can extend, and enough vocabulary to read the rest of the Learn track. + +## Prerequisites + +- **.NET SDK 8.0 or 10.0**. The library packages multi-target `net8.0` (previous LTS) and `net10.0` (current LTS); use whichever SDK matches your application's target. Older runtimes (`netstandard2.x`, `net6.0`, `net7.0`) are not supported — see the [Releases](/ServiceConnect-CSharp/releases/) page for the rationale and migration guidance. +- **Docker** (or a local RabbitMQ 3.7+ install). Docker is easier — the command below starts a throwaway broker in 5 seconds. + +## Start RabbitMQ + +ServiceConnect speaks AMQP 0.9.1 against RabbitMQ. Start a broker with the management UI enabled: + +```bash +docker run --rm -d \ + --name rabbitmq \ + -p 5672:5672 \ + -p 15672:15672 \ + rabbitmq:3-management +``` + +The broker is ready when you can open [http://localhost:15672](http://localhost:15672) (login: `guest` / `guest`). + +## Create the projects + +We'll build three projects in a single solution: + +| Project | Purpose | +|---|---| +| `GettingStarted.Contracts` | Shared message types referenced by both services. | +| `GettingStarted.Sender` | Sends a message and exits. | +| `GettingStarted.Consumer` | Starts the bus and handles incoming messages. | + +Create the solution and projects: + +```bash +mkdir GettingStarted && cd GettingStarted +dotnet new sln +dotnet new classlib -n GettingStarted.Contracts +dotnet new console -n GettingStarted.Sender +dotnet new console -n GettingStarted.Consumer +dotnet sln add GettingStarted.Contracts GettingStarted.Sender GettingStarted.Consumer +dotnet add GettingStarted.Sender reference GettingStarted.Contracts +dotnet add GettingStarted.Consumer reference GettingStarted.Contracts +``` + +Add the ServiceConnect packages to both console apps: + +```bash +dotnet add GettingStarted.Sender package ServiceConnect +dotnet add GettingStarted.Sender package ServiceConnect.Client.RabbitMQ +dotnet add GettingStarted.Consumer package ServiceConnect +dotnet add GettingStarted.Consumer package ServiceConnect.Client.RabbitMQ +``` + +## Define a message + +Messages are the **contracts** exchanged between services. Every ServiceConnect message derives from the `Message` base class, which carries a correlation id used to link related messages across the system. + +In `GettingStarted.Contracts`, replace the default `Class1.cs` with `WorkSubmitted.cs`: + +```csharp +// GettingStarted.Contracts/WorkSubmitted.cs +using ServiceConnect.Interfaces; + +namespace GettingStarted.Contracts; + +public sealed class WorkSubmitted(Guid correlationId) : Message(correlationId) +{ + public string WorkId { get; init; } = string.Empty; +} +``` + +`Contracts` needs the ServiceConnect interfaces to reference `Message`: + +```bash +dotnet add GettingStarted.Contracts package ServiceConnect.Interfaces +``` + +Keep message types **simple DTOs** — public properties, no behaviour. See [Messages](/ServiceConnect-CSharp/learn/core-concepts/messages/) for the full contract design guidance. + +## Write the sender + +The sender builds a `ServiceCollection`, registers ServiceConnect pointing at RabbitMQ, resolves `IBus`, and calls `SendAsync`. + +```csharp +// GettingStarted.Sender/Program.cs +using GettingStarted.Contracts; +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; + +var services = new ServiceCollection(); +services.AddLogging(); +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(transport => + { + transport.Host = "localhost"; + transport.Username = "guest"; + transport.Password = "guest"; + transport.SslEnabled = false; // TLS is on by default; set false against the plaintext local broker only. + }); + builder.ConfigureQueues(queues => queues.QueueName = "getting-started-sender"); +}); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); + +await bus.SendAsync( + new WorkSubmitted(Guid.NewGuid()) { WorkId = "work-001" }, + new SendOptions { EndPoint = "getting-started-consumer" }); + +Console.WriteLine("Sent work-001"); +``` + +Two things to notice: + +- **The sender has its own queue name** (`getting-started-sender`). Even a service that only sends needs a queue — that is where replies, errors, and audit copies land. +- **`SendOptions.EndPoint`** names the *destination* queue. ServiceConnect does not guess routing; you tell it where a message goes, or you configure a queue mapping in advance (see [Endpoints](/ServiceConnect-CSharp/learn/core-concepts/endpoints/)). + +## Write the consumer + +The consumer registers a handler for `WorkSubmitted` and starts the bus. + +First, the handler: + +```csharp +// GettingStarted.Consumer/WorkSubmittedHandler.cs +using GettingStarted.Contracts; +using ServiceConnect.Interfaces; + +namespace GettingStarted.Consumer; + +public sealed class WorkSubmittedHandler : IMessageHandler +{ + public Task HandleAsync(WorkSubmitted message, IConsumeContext context, CancellationToken cancellationToken = default) + { + Console.WriteLine($"Processed {message.WorkId}"); + return Task.CompletedTask; + } +} +``` + +Then the bootstrap: + +```csharp +// GettingStarted.Consumer/Program.cs +using GettingStarted.Consumer; +using GettingStarted.Contracts; +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.DependencyInjection; +using ServiceConnect.Interfaces; + +var services = new ServiceCollection(); +services.AddLogging(); +services.AddSingleton>(new List +{ + new() { HandlerType = typeof(WorkSubmittedHandler), MessageType = typeof(WorkSubmitted) } +}); +// Scanning is disabled below, so AddServiceConnect does not register handler types itself. +// Register the handler under its IMessageHandler interface so the dispatcher can resolve it. +services.AddTransient, WorkSubmittedHandler>(); +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(transport => + { + transport.Host = "localhost"; + transport.Username = "guest"; + transport.Password = "guest"; + transport.SslEnabled = false; // TLS is on by default; set false against the plaintext local broker only. + }); + builder.ConfigureQueues(queues => queues.QueueName = "getting-started-consumer"); + builder.ConfigureBus(bus => bus.ScanForMessageHandlers = false); +}); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); + +await bus.StartConsumingAsync(); +Console.WriteLine("Consumer ready. Ctrl-C to exit."); +await Task.Delay(Timeout.InfiniteTimeSpan); +``` + +We register the handler explicitly in two parts — the `HandlerReference` list maps each message type to its handler, and the `AddTransient, …>` registration makes the handler resolvable from DI — then disable `ScanForMessageHandlers`. The scanner does both steps automatically for full applications; doing it by hand here shows exactly what ServiceConnect needs to know. + +## Run it + +Open two terminals in the `GettingStarted` directory. + +**Terminal 1 — start the consumer:** + +```bash +dotnet run --project GettingStarted.Consumer +``` + +You should see: + +``` +Consumer ready. Ctrl-C to exit. +``` + +**Terminal 2 — send one message:** + +```bash +dotnet run --project GettingStarted.Sender +``` + +The sender prints `Sent work-001` and exits. In the consumer terminal you should now see: + +``` +Processed work-001 +``` + +That message travelled from the sender process, through RabbitMQ, into the consumer process, and into your handler. Stop the consumer with Ctrl-C. + +## What just happened + +1. **The consumer declared a queue** named `getting-started-consumer` on RabbitMQ when the bus started consuming. +2. **The sender produced a message** of type `WorkSubmitted` and, because `SendOptions.EndPoint` was set, routed it directly to `getting-started-consumer`. +3. **RabbitMQ delivered the message** to the consumer's queue. +4. **ServiceConnect deserialised the message**, matched it to `WorkSubmittedHandler` via the handler registry, and invoked `HandleAsync`. + +Each step maps to a Core Concept page you can read next. + +## Where to go next + +- [The Bus](/ServiceConnect-CSharp/learn/core-concepts/the-bus/) — what `IBus` is and how it fits into the host lifecycle. +- [Messages](/ServiceConnect-CSharp/learn/core-concepts/messages/) — how to design contracts that travel cleanly. +- [Handlers](/ServiceConnect-CSharp/learn/core-concepts/handlers/) — how incoming messages reach your code. +- [Endpoints](/ServiceConnect-CSharp/learn/core-concepts/endpoints/) — queue names, routing, and how Send and Publish choose a destination. + +Or skip ahead to [Messaging Patterns](/ServiceConnect-CSharp/learn/messaging-patterns/pub-sub/) to see what else the bus can do. diff --git a/website/src/content/docs/learn/messaging-patterns/aggregator.mdx b/website/src/content/docs/learn/messaging-patterns/aggregator.mdx new file mode 100644 index 000000000..5870c6a7b --- /dev/null +++ b/website/src/content/docs/learn/messaging-patterns/aggregator.mdx @@ -0,0 +1,123 @@ +--- +title: Aggregator +description: Buffer related messages into a batch, then handle them together — by size, by time, or both. +--- + +**Aggregator** is the pattern for "don't handle each message immediately — wait until I have enough of them, then process the group." Telemetry slices that should be rolled up every 10 seconds. Line items that should be billed in one statement per order. A reconciliation pass that only makes sense once the day's feeds are all in. + +It is the collecting counterpart to [Scatter-Gather](/ServiceConnect-CSharp/learn/messaging-patterns/scatter-gather/): scatter-gather collects on the *sender* side (I sent, I wait for replies); aggregator collects on the *receiver* side (I consume, I buffer, I flush). + +## When to use it + +- Handling each message one at a time is the wrong unit of work — batching is what's natural. +- You have a clear flush condition: either a size threshold, a time window, or both. +- Holding messages briefly before processing is acceptable. Aggregators trade latency for batching. + +If each message is independently meaningful and complete, don't aggregate. If the flush condition is "when every expected message has arrived," the discrete-correlation shape of a [Process Manager](/ServiceConnect-CSharp/learn/messaging-patterns/process-manager/) fits better than a rolling window. + +## The contract + +One message type feeds the aggregator: + +```csharp +// Contracts/TelemetrySlice.cs +using ServiceConnect.Interfaces; + +public sealed class TelemetrySlice(Guid correlationId) : Message(correlationId) +{ + public string Source { get; init; } = string.Empty; + public int Value { get; init; } +} +``` + +Messages in a batch don't need a shared correlation id — each message carries its own. The aggregator groups by *arrival*, not by correlation. + +## The aggregator + +An aggregator derives from `Aggregator` and overrides three methods: when to flush by size, when to flush by time, and what to do with the batch: + +```csharp +// Consumer/TelemetrySliceAggregator.cs +public sealed class TelemetrySliceAggregator : Aggregator +{ + public override int BatchSize() => 100; + public override TimeSpan Timeout() => TimeSpan.FromSeconds(10); + + public override Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default) + { + var total = messages.Sum(m => m.Value); + Console.WriteLine($"rolled up {messages.Count} slices, total {total}"); + return Task.CompletedTask; + } +} +``` + +Three things to notice: + +- **`ExecuteAsync` is async-first.** It runs on a background flush and returns a batch outcome, not a handler result. The supplied `CancellationToken` flows through from the dispatcher — honour it for long-running I/O. Await async work directly; no sync-over-async bridges are needed. +- **Both flush paths are mandatory.** `BatchSize()` must return a positive int; `Timeout()` must return a positive `TimeSpan` (neither `TimeSpan.Zero` nor `Timeout.InfiniteTimeSpan`). The registry rejects subclasses that violate either at startup with `InvalidOperationException` — the framework needs both paths to guarantee buffered messages always have a route to dispatch. The batch flushes on whichever trigger fires first. +- **There is no correlation key.** One aggregator instance buffers every message of its type that arrives on its queue. If you need per-group batching ("aggregate *per order*"), use a [Process Manager](/ServiceConnect-CSharp/learn/messaging-patterns/process-manager/) keyed on the group id; aggregator is the right shape only when one big pool is what you want. + +## Generic subclasses are not supported + +Generic aggregator subclasses — `class MyAggregator : Aggregator` — are rejected at registry construction with `InvalidOperationException`. A generic subclass's `FullName` embeds the assembly-qualified name of its type argument (including version and public-key token), which defeats the version-stable name derivation the persistence layer depends on. Use a concrete (non-generic) class for every aggregator. + +## Registration and persistence + +An aggregator is registered like a handler — it consumes a message type from a queue — but it is bound to its base class, not to `IMessageHandler`: + +```csharp +// Consumer/Program.cs +services.AddTransient, TelemetrySliceAggregator>(); + +services.AddSingleton>(new List +{ + new() { HandlerType = typeof(TelemetrySliceAggregator), MessageType = typeof(TelemetrySlice) }, +}); + +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(t => { t.Host = "localhost"; }); + builder.ConfigureQueues(q => q.QueueName = "telemetry-rollup"); + builder.UseMongoDbPersistence(options => + { + options.ConnectionString = "mongodb://localhost:27017"; + options.DatabaseName = "telemetry"; + }); +}); +``` + +The MongoDB persistence provider is what makes aggregators safe across restarts. Each buffered message is inserted into a collection keyed by the aggregator name; on restart, the buffer is restored. Flushing removes the batch. If you omit the persistence configuration, the bus has no `IAggregatorPersistor`; each arriving aggregatable message logs a `Warning` (`"IAggregatorPersistor not registered. Cannot aggregate {MessageType}"`) and is silently discarded rather than buffered. Wire up persistence — or remove the aggregator registration — before deploying. + +Don't keep state in private fields of the aggregator. The instance is recreated per dispatch — the buffer lives in persistence, not in memory. + +## Flush semantics + +Once a flush condition is met, the aggregator: + +1. Loads the current batch from the persistor. +2. Deserialises it back into `T` instances. +3. Calls `ExecuteAsync(batch, cancellationToken)`. +4. Removes the flushed records from the persistor. + +If `ExecuteAsync` throws, the batch is not removed — it flushes again on the next trigger. This is the expected shape: `ExecuteAsync` should be idempotent where possible (write to a system that upserts, or tag the flush with a batch id you can deduplicate on). + +A batch that arrives out-of-order is still one batch. The aggregator does not sort; if ordering within the batch matters, sort inside `ExecuteAsync`. + +## When not to aggregate + +Two anti-patterns worth naming: + +- **Accumulating indefinitely.** If there's no flush condition — no size, no timeout — messages pile up. Always set at least one flush trigger. +- **Using the aggregator as a poor-man's queue.** If your real need is "process these in the background," a normal queue with a competing-consumer worker is simpler and clearer. Reach for aggregator when the *batch* is the unit of work, not when you want deferred processing. + +## Reference + +- [`Aggregator`](/ServiceConnect-CSharp/reference/process-managers/aggregator/) — aggregator base class and snapshot +- [`IAggregatorPersistor`](/ServiceConnect-CSharp/reference/extension-points/persistence/iaggregatorpersistor/) — extension point for custom persistence + +## What comes next + +- [Scatter-Gather](/ServiceConnect-CSharp/learn/messaging-patterns/scatter-gather/) — the sender-side counterpart. +- [Process Manager](/ServiceConnect-CSharp/learn/messaging-patterns/process-manager/) — when the batch is keyed by a correlation id rather than arrival. +- [Competing Consumers](/ServiceConnect-CSharp/learn/messaging-patterns/competing-consumers/) — when you want parallelism, not batching. diff --git a/website/src/content/docs/learn/messaging-patterns/competing-consumers.mdx b/website/src/content/docs/learn/messaging-patterns/competing-consumers.mdx new file mode 100644 index 000000000..d7915af73 --- /dev/null +++ b/website/src/content/docs/learn/messaging-patterns/competing-consumers.mdx @@ -0,0 +1,101 @@ +--- +title: Competing Consumers +description: Scale work through a queue by running multiple consumers against the same queue name — RabbitMQ delivers each message to exactly one of them. +--- + +**Competing Consumers** is how you scale throughput on a single queue. Instead of one consumer handling every message serially, you run several — in the same process, in different processes, or across different machines — all pointing at the same queue name. RabbitMQ delivers each message to exactly one of them. + +This is not a variant of pub/sub. In pub/sub, every subscriber gets a copy. Here, every consumer is a replica of the same worker, and a message being handled by one means it is not handled by the others. + +## When to use it + +- A single-threaded consumer can't keep up and the work is horizontally parallelisable. +- You want a handler's throughput to scale linearly with process count. +- Work is independent — two instances of the handler can run the same message (or two different messages) without stepping on each other. + +If the handler has order-sensitive state, competing consumers will surprise you. RabbitMQ gives no per-message ordering across competing consumers — consumer A may finish message 2 before consumer B finishes message 1. Design handlers to be order-independent, or keep the pattern out of that queue. + +## The shape + +Multiple processes or threads, same queue name, same handler type. Producers don't change: + +```csharp +// Producer — identical to point-to-point +await bus.SendAsync( + new JobQueued(Guid.NewGuid()) { JobId = "job-42" }, + new SendOptions { EndPoint = "jobs" }); +``` + +The interesting part is the consumer side: two worker processes, each running its own bus, both pointing at the queue `"jobs"`. + +```csharp +// Worker-A/Program.cs +var services = new ServiceCollection(); +services.AddLogging(); +services.AddSingleton>(new List +{ + new() { HandlerType = typeof(JobQueuedHandler), MessageType = typeof(JobQueued) }, +}); +services.AddTransient, JobQueuedHandler>(); +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(t => { /* … */ }); + builder.ConfigureQueues(q => q.QueueName = "jobs"); // same queue … + builder.ConfigureBus(bus => bus.ScanForMessageHandlers = false); +}); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); +await bus.StartConsumingAsync(); +await Task.Delay(Timeout.InfiniteTimeSpan); +``` + +Worker-B is a byte-for-byte copy with the same queue name. Run both; each message sent to `jobs` arrives at exactly one of them. + +The producer can send 100 messages without knowing how many workers exist. If you start a third worker later, it starts taking a share without any change to the producer or the other workers. + +## In-process parallelism + +You don't always need separate processes. A single bus can run multiple consumer loops against its own queue by raising `ConsumerCount`: + +```csharp +services.AddServiceConnect(builder => +{ + builder.ConfigureQueues(q => q.QueueName = "jobs"); + builder.ConfigureBus(bus => + { + bus.ScanForMessageHandlers = false; + bus.ConsumerCount = 8; // eight parallel dispatchers within this process + }); +}); +``` + +Each loop pulls from the same queue and dispatches to a fresh handler instance. Handlers are transient by construction (see [Handler lifetime](/ServiceConnect-CSharp/learn/core-concepts/handlers/#handler-lifetime)), so concurrent dispatches don't share state. + +When to use which: + +- **`ConsumerCount`** — your bottleneck is within one process: a CPU-bound handler, a downstream I/O call that benefits from concurrency, a single box with room to breathe. +- **Separate processes** — you want horizontal scaling across machines, rolling deployments without pausing consumption, or isolation between workers (an OOM in one shouldn't kill the others). + +Both are live at the same time: you can run 4 processes with `ConsumerCount = 8` each, giving 32 concurrent handlers against one queue. + +## Idempotency becomes your job + +With one consumer, at-least-once delivery is usually benign — the same handler runs until it succeeds. With competing consumers, the failure modes multiply: + +- A message delivered to worker A and left unacknowledged (a crash mid-handler) is redelivered. **Another worker will likely pick it up** — and may already have a sibling message from the same conversation in flight. +- Two messages from the same logical conversation can execute in parallel on different workers. If they both try to update the same row, one wins, one retries, one may land in the error queue. + +Design for this. Use the message's correlation id (or a dedicated natural key) to make the effect idempotent: upsert rather than insert, check state before acting, take a row-level lock when the operation requires ordering. A handler that can tolerate being run twice is the only kind that scales. + +## Prefetch and fairness + +RabbitMQ's prefetch settings control how many unacknowledged messages a single consumer can hold. The default in ServiceConnect is conservative enough that you rarely need to tune it, but under very uneven workloads — a few slow messages blocking fast ones — you may want to lower prefetch so the broker can redistribute work. If you find yourself needing this, the transport configuration exposes per-client settings via `transport.SetClientSetting(...)`. + +For most workloads: don't tune until you have a measured reason to. + +## What comes next + +- [Point-to-Point](/ServiceConnect-CSharp/learn/messaging-patterns/point-to-point/) — the pattern this extends. +- [Content-Based Routing](/ServiceConnect-CSharp/learn/messaging-patterns/content-based-routing/) — when you want different workers for different kinds of the same message. +- [Handlers](/ServiceConnect-CSharp/learn/core-concepts/handlers/) — the transient-lifetime rule that makes competing consumers safe. diff --git a/website/src/content/docs/learn/messaging-patterns/content-based-routing.mdx b/website/src/content/docs/learn/messaging-patterns/content-based-routing.mdx new file mode 100644 index 000000000..0ba52f237 --- /dev/null +++ b/website/src/content/docs/learn/messaging-patterns/content-based-routing.mdx @@ -0,0 +1,113 @@ +--- +title: Content-Based Routing +description: Route different kinds of a message to different consumers — either by splitting the message type or by branching inside a handler. +--- + +**Content-Based Routing** is the pattern for "some orders go here, some go there." You have a logical event — `OrderPlaced` — but downstream services only want part of it: the priority team wants the premium orders, the batch team wants the rest. Routing by content means the *message* decides where it goes, not the publisher. + +This page shows the two idiomatic shapes in ServiceConnect, and when to reach for each. + +## Split the type + +The idiomatic approach in ServiceConnect is to split the logical event into multiple concrete types, one per route. Pub/Sub fan-out does the rest — subscribers only bind to the types they care about. + +```csharp +// Contracts/OrderPlaced.cs +using ServiceConnect.Interfaces; + +public sealed class PremiumOrderPlaced(Guid correlationId) : Message(correlationId) +{ + public string OrderId { get; init; } = string.Empty; +} + +public sealed class StandardOrderPlaced(Guid correlationId) : Message(correlationId) +{ + public string OrderId { get; init; } = string.Empty; +} +``` + +The publisher decides which type to emit based on the content of the order: + +```csharp +if (order.TotalValue > premiumThreshold) + await bus.PublishAsync(new PremiumOrderPlaced(correlationId) { OrderId = order.Id }); +else + await bus.PublishAsync(new StandardOrderPlaced(correlationId) { OrderId = order.Id }); +``` + +Two subscribers, one per type. A priority consumer: + +```csharp +public sealed class PremiumOrderHandler : IMessageHandler +{ + public Task HandleAsync(PremiumOrderPlaced message, IConsumeContext context, CancellationToken cancellationToken = default) + { + Console.WriteLine($"Priority lane: processing {message.OrderId}"); + return Task.CompletedTask; + } +} +``` + +A standard consumer is the same shape against `StandardOrderPlaced`. Each runs in its own process with its own queue (`priority-consumer`, `standard-consumer`), bound only to its own exchange. A premium order lands only in the priority queue; a standard order lands only in the standard queue. + +### Why this shape + +- **The type system carries the intent.** A consumer that handles `PremiumOrderPlaced` can't accidentally receive a standard order — it isn't even bound to that exchange. +- **Fan-out remains automatic.** Adding another consumer for premium orders is a new process with a handler for `PremiumOrderPlaced`. No router to configure, no filter to update. +- **The routing rule lives with the data.** "What counts as premium?" is answered in one place — the publisher's branch — not scattered across consumers filtering out messages they didn't want. + +This is the recommended approach when the categories are stable and the publisher already has the information to decide. The runnable example in [`examples/ContentBasedRouting`](https://github.com/R-Suite/ServiceConnect-CSharp/tree/master/examples/ContentBasedRouting) takes this shape. + +## Branch inside a handler + +Sometimes splitting the type is wrong. Maybe the categorisation is a consumer concern (the priority team's definition of "premium" might change, and the publisher shouldn't know about it), or maybe you have so many variations that a type per variant is unwieldy. + +In that case, keep one message type and branch inside the handler: + +```csharp +public sealed class OrderRoutingHandler : IMessageHandler +{ + public async Task HandleAsync(OrderPlaced message, IConsumeContext context, CancellationToken cancellationToken = default) + { + if (message.TotalValue > 500m) + await context.Bus.SendAsync( + new PriorityWork(message.CorrelationId) { OrderId = message.OrderId }, + new SendOptions { EndPoint = "priority-workers" }); + else + await context.Bus.SendAsync( + new StandardWork(message.CorrelationId) { OrderId = message.OrderId }, + new SendOptions { EndPoint = "standard-workers" }); + } +} +``` + +The bus is now running a routing handler — it subscribes to `OrderPlaced`, inspects content, and forwards to the appropriate destination. Downstream workers stay simple: they handle the one kind of work they know about. + +### When to choose this + +- The rule changes often and is owned by the consumer domain, not the publisher. +- You need to enrich the message with information the router knows but the publisher doesn't (the priority team's quota state, for example). +- Several downstream routes share the same body and splitting types would produce near-duplicates. + +The cost is an extra hop and a piece of code whose whole job is to route. Pay that cost when it buys you flexibility; otherwise, split the type. + +## Don't filter silently + +A pattern to avoid: a handler that subscribes to `OrderPlaced`, checks `TotalValue > 500`, and does nothing when the check fails. + +```csharp +// Bad: a silent no-op for messages the handler doesn't want. +public Task HandleAsync(OrderPlaced message, IConsumeContext context, CancellationToken cancellationToken = default) +{ + if (message.TotalValue <= 500m) return Task.CompletedTask; + // …process premium… +} +``` + +This works, but it is invisible. The bus will tell you it delivered the message and your handler finished successfully — but it did nothing. You have broken the link between "handler ran" and "work happened," which makes observability and debugging strictly harder. If you need this filter, prefer splitting the type on the publisher side; if you can't, at least route explicitly (as in the previous section) so there is a clear log line for the "this message was ignored" path. + +## What comes next + +- [Pub/Sub](/ServiceConnect-CSharp/learn/messaging-patterns/pub-sub/) — the fan-out the type-split variant builds on. +- [Routing Slip](/ServiceConnect-CSharp/learn/messaging-patterns/routing-slip/) — when routing is a sequence of hops, not a one-time decision. +- [Messages](/ServiceConnect-CSharp/learn/core-concepts/messages/) — message design conventions that make type splits cheap. diff --git a/website/src/content/docs/learn/messaging-patterns/filters.mdx b/website/src/content/docs/learn/messaging-patterns/filters.mdx new file mode 100644 index 000000000..03d83e6ed --- /dev/null +++ b/website/src/content/docs/learn/messaging-patterns/filters.mdx @@ -0,0 +1,143 @@ +--- +title: Filters +description: Intercept messages on the way out or on the way in — stamp headers, short-circuit delivery, log, or enrich. +--- + +**Filters** run on the envelope — the bytes-and-headers wrapper that carries a message through the transport — at three points in the pipeline: before a message is published or sent, before an incoming message reaches a handler, and after a handler returns. They are the hook for cross-cutting concerns that should apply to *every* message passing a certain point, rather than being added to each handler individually. + +Use filters for the things every handler would otherwise duplicate: tracing headers, auth checks, logging, message shape normalisation, redaction. + +## When to use it + +- You have a concern that applies to many or all messages — correlation propagation, auth, telemetry, redaction. +- You want the concern enforced at the transport boundary, not scattered across handler bodies. +- You need the ability to *stop* a message centrally. Filters can decide the pipeline stops here. + +If the concern only applies to one or two handlers, put it in those handlers. Filters earn their place by being uniform. + +## The contract + +One interface, one method: + +```csharp +public interface IFilter +{ + Task ProcessAsync(Envelope envelope, CancellationToken cancellationToken = default); +} +``` + +The return value tells the pipeline what to do next: + +- **`FilterAction.Continue`** — the next filter runs; eventually the message is sent or handled. +- **`FilterAction.Stop`** — no further filters run on this envelope, and the pipeline stops. + +The `Envelope` gives you two things: mutable `Headers` and a read-only `Body`. You modify the bytes only indirectly — by letting serialisation happen upstream of the filter and working with headers here. If a filter needs to change the payload itself, it's usually a sign the concern belongs in a handler instead. + +## An outgoing filter + +The canonical example: stamp a trace id on every outgoing message. The handler shouldn't have to know — the filter puts it on for you: + +```csharp +// Sender/TraceHeaderFilter.cs +public sealed class TraceHeaderFilter(ITracingContext tracing) : IFilter +{ + public Task ProcessAsync(Envelope envelope, CancellationToken cancellationToken = default) + { + envelope.Headers["X-Trace-Id"] = tracing.CurrentTraceId; + return Task.FromResult(FilterAction.Continue); + } +} +``` + +Registration is a one-liner on the builder, plus whatever DI setup the filter's dependencies need: + +```csharp +// Sender/Program.cs +services.AddSingleton(); +services.AddSingleton(); +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(t => { t.Host = "localhost"; }); + builder.ConfigureQueues(q => q.QueueName = "notifications-sender"); + builder.AddOutgoingFilter(); +}); +``` + +Every `SendAsync` and `PublishAsync` on this bus now runs through `TraceHeaderFilter` before hitting the wire. Consumers see `X-Trace-Id` in the message headers without the sending handler knowing the filter exists. + +Note the DI registration. Filters are resolved from the container, so they **must** be registered as services — the builder's `AddOutgoingFilter()` call only tells the pipeline which type to resolve; the container is what actually constructs one. Register filters as `Scoped` or `Transient` by default; use `Singleton` only when the filter is stateless and thread-safe. + +When an outgoing filter returns `FilterAction.Stop`, the corresponding `PublishAsync` / `SendAsync` / `SendToManyAsync` / `RouteAsync` call throws `OutgoingFiltersBlockedException`. Callers that intentionally use `FilterAction.Stop` to suppress a message must catch this exception (or rely on a higher-level handler). + +## Incoming filters + +Three hooks on the incoming side, each for a different purpose: + +```csharp +builder.AddBeforeConsumingFilter(); // runs before the handler +builder.AddAfterConsumingFilter(); // runs after the handler returns +builder.AddOnConsumedSuccessfullyFilter(); // runs only after a successful handler invocation +``` + +The *before* position is where "should this message even be processed?" goes — auth, deduplication, feature-flag gates. Returning `FilterAction.Stop` here stops the pipeline cleanly: the handler never runs, and the pipeline treats it as successfully processed (so the message is acked and does not go to the error queue). + +The *after* position is where post-processing goes — audit logging, metrics, cleanup. The handler has already run; a filter returning `FilterAction.Stop` here has no effect on the handler outcome but does stop any filters further down the after-chain from running. If an AfterConsuming filter throws, the exception is swallowed (logged at Warning) and the message remains acked — the handler's side effects have already committed. + +The *on-consumed-successfully* position runs only after a successful handler invocation — failures and unhandled messages skip it. Use it for at-most-once side effects that must not fire if the handler threw or left the message unhandled: recording a deduplication key, writing to an outbox, emitting an audit event where partial records are worse than no records. + +```csharp +public sealed class AuthFilter(IAuthChecker auth) : IFilter +{ + public async Task ProcessAsync(Envelope envelope, CancellationToken cancellationToken = default) + { + if (!envelope.Headers.TryGetValue("X-Principal", out var principal)) + return FilterAction.Stop; // drop unauthenticated messages + + return await auth.IsAuthorizedAsync((string)principal!, cancellationToken) + ? FilterAction.Continue + : FilterAction.Stop; + } +} +``` + +## Order of execution + +Filters run in registration order. If you register `A` then `B` as outgoing filters, `A` runs first; if `A` returns `FilterAction.Stop`, `B` never sees the envelope. Design filters to be independent where you can — a pipeline where filter order silently matters is a pipeline that breaks the first time someone reorders registrations. + +When *order must matter* (stamp the trace id before an auth check that depends on it), state that coupling in a comment next to the registration, not hidden inside the filter. + +## The middleware alternative + +ServiceConnect also has two middleware hooks — `AddSendMessageMiddleware` and `AddMessageProcessingMiddleware` — which wrap the whole operation with `next`-delegate semantics, the way ASP.NET Core middleware does. Filters are stateless inspect/stamp/maybe-stop; middleware is wrap-the-operation. Pick by scenario: + +| You want to… | Use | Why | +|---|---|---| +| Read or stamp a header | Filter | Stateless inspect/produce; that's the whole filter contract | +| Short-circuit the pipeline based on header content | Filter | `FilterAction.Stop` is a first-class outcome | +| Authorise the message based on incoming claims and reject | Filter | Inspect headers, return `FilterAction.Stop` if rejected | +| Wrap the inner pipeline with `try`/`finally` (open a tracing scope, close it) | Middleware | Filters can't observe completion of `next` | +| Time the whole consume operation | Middleware | Need a `Stopwatch` that brackets `next()` | +| Catch exceptions thrown by the inner pipeline | Middleware | Filters return `FilterAction`; they don't see exceptions from `next` | +| Mutate the message body | Middleware | Middleware can hand substitute bytes to `next()`; filters have no continuation to redirect | +| Open a unit-of-work, commit on success, rollback on exception | Middleware | Needs to observe success-vs-exception from `next()` to choose commit or rollback | + +Rule of thumb: **filter when "inspect or stamp, maybe stop" is the whole job; middleware when you need to wrap the operation.** + +### Lifetime constraints + +`ISendMessageMiddleware` **must** be registered as `Singleton`. `AddServiceConnect` validates this at host start-up and throws `InvalidOperationException` if any `ISendMessageMiddleware` type is registered with a `Transient` or `Scoped` lifetime — the send pipeline runs from non-handler call sites (background workers, hosted services, any caller that holds an `IBus`) where a per-request scope is not always available, and silently capturing a stale scope from the root provider would race against `IServiceProvider` disposal. + +`IMessageProcessingMiddleware` has no such restriction. Register it as `Transient` (the default), `Scoped` (one instance per handler dispatch), or `Singleton` (one instance reused across dispatches); the consume pipeline runs inside a per-message scope, so any of these is safe. + +## Reference + +- [`IFilter`](/ServiceConnect-CSharp/reference/filters/ifilter/) — short-circuit consume-pipeline stage +- [`IMessageProcessingMiddleware`](/ServiceConnect-CSharp/reference/filters/imessageprocessingmiddleware/) — wrap the consume pipeline +- [`ISendMessageMiddleware`](/ServiceConnect-CSharp/reference/filters/isendmessagemiddleware/) — wrap the send pipeline +- [`IPipelineConfiguration`](/ServiceConnect-CSharp/reference/configuration/ipipelineconfiguration/) — wiring config + +## What comes next + +- [Handlers](/ServiceConnect-CSharp/learn/core-concepts/handlers/) — where filtered messages end up. +- [Pub/Sub](/ServiceConnect-CSharp/learn/messaging-patterns/pub-sub/) — outgoing filters run for both sends and publishes. +- [Endpoints](/ServiceConnect-CSharp/learn/core-concepts/endpoints/) — filters attach to the bus, not the endpoint; the same filters apply to every queue the bus talks to. diff --git a/website/src/content/docs/learn/messaging-patterns/point-to-point.mdx b/website/src/content/docs/learn/messaging-patterns/point-to-point.mdx new file mode 100644 index 000000000..9450b23af --- /dev/null +++ b/website/src/content/docs/learn/messaging-patterns/point-to-point.mdx @@ -0,0 +1,159 @@ +--- +title: Point-to-Point +description: Send a message directly to a named queue, with exactly one service on the other end. +--- + +**Point-to-Point** is the simplest messaging pattern: one sender, one named destination, one recipient. You know which service should handle the message, you name its queue, and ServiceConnect delivers exactly one copy. + +It is the opposite of [Pub/Sub](/ServiceConnect-CSharp/learn/messaging-patterns/pub-sub/) — instead of broadcasting a fact for anyone interested, you are dispatching a unit of work to a specific handler. + +## When to use it + +- A service is asking another service to **do something** — this is a command, not an event. +- You know the destination ahead of time. There is one service that owns this operation. +- You don't want implicit fan-out. If you're publishing and only one subscriber happens to exist, that is subscription state leaking into call semantics — use Send instead. + +Typical commands: `PlaceOrder`, `RefundRequested`, `SendWelcomeEmail`, `ReindexDocument`. + +## The contract + +Commands, by convention, are named with an imperative verb so intent is obvious at the call site: + +```csharp +// Contracts/WorkSubmitted.cs +using ServiceConnect.Interfaces; + +public sealed class WorkSubmitted(Guid correlationId) : Message(correlationId) +{ + public string WorkId { get; init; } = string.Empty; +} +``` + +The contract lives in a shared project referenced by both sides, same as in every pattern. + +## The sender + +The sender knows two things: the message type and the destination queue. + +```csharp +// Sender/Program.cs +using Microsoft.Extensions.DependencyInjection; +using P2PDemo.Contracts; +using ServiceConnect; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; + +var services = new ServiceCollection(); +services.AddLogging(); +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(t => + { + t.Host = "localhost"; + t.Username = "guest"; + t.Password = "guest"; + }); + builder.ConfigureQueues(q => q.QueueName = "p2p-sender"); +}); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); + +await bus.SendAsync( + new WorkSubmitted(Guid.NewGuid()) { WorkId = "work-001" }, + new SendOptions { EndPoint = "p2p-consumer" }); + +Console.WriteLine("Sent work-001"); +``` + +The `SendOptions.EndPoint` value is the destination queue name. One message, one copy, one queue. + +Even a send-only process needs a queue of its own. The `QueueName` on the sender (`p2p-sender` here) is where replies, errors, and audits land. ServiceConnect creates it when the bus builds; it is empty on a pure-sender, but it must exist. + +### Configured destinations + +When the destination is a stable fact — "every `WorkSubmitted` always goes to the fulfilment service" — you can move the mapping into startup: + +```csharp +builder.ConfigureQueues(q => +{ + q.QueueName = "p2p-sender"; + q.AddQueueMapping(typeof(WorkSubmitted), "p2p-consumer"); +}); + +// Later, no SendOptions needed: +await bus.SendAsync(new WorkSubmitted(Guid.NewGuid()) { WorkId = "work-001" }); +``` + +ServiceConnect looks up the mapping and routes for you. Inline `SendOptions.EndPoint` still wins if supplied, so you can override the configured default per call. If no mapping exists and no `SendOptions.EndPoint` is supplied, the send fails — ServiceConnect refuses to guess. See [Endpoints](/ServiceConnect-CSharp/learn/core-concepts/endpoints/) for the full rules. + +## The consumer + +The consumer owns the destination queue and handles the command: + +```csharp +// Consumer/WorkSubmittedHandler.cs +using P2PDemo.Contracts; +using ServiceConnect.Interfaces; + +public sealed class WorkSubmittedHandler : IMessageHandler +{ + public Task HandleAsync(WorkSubmitted message, IConsumeContext context, CancellationToken cancellationToken = default) + { + Console.WriteLine($"Processed {message.WorkId}"); + return Task.CompletedTask; + } +} +``` + +```csharp +// Consumer/Program.cs +var services = new ServiceCollection(); +services.AddLogging(); +services.AddSingleton>(new List +{ + new() { HandlerType = typeof(WorkSubmittedHandler), MessageType = typeof(WorkSubmitted) }, +}); +services.AddTransient, WorkSubmittedHandler>(); +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(t => { /* … */ }); + builder.ConfigureQueues(q => q.QueueName = "p2p-consumer"); + builder.ConfigureBus(bus => bus.ScanForMessageHandlers = false); +}); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); +await bus.StartConsumingAsync(); +await Task.Delay(Timeout.InfiniteTimeSpan); +``` + +One sender, one consumer, a direct line between them. This is also the shape the [Getting Started](/ServiceConnect-CSharp/learn/getting-started/) guide walks through in full. + +## Multiple destinations + +A single call can deliver to more than one queue via `IBus.SendToManyAsync`, which takes an explicit endpoint list: + +```csharp +await bus.SendToManyAsync( + new StockUpdated(correlationId) { Sku = "widget", Quantity = 10 }, + new[] { "pricing", "search-index", "reporting" }); +``` + +This is still point-to-point — one copy per listed queue. The sender is choosing the fan-out explicitly, rather than letting subscribers opt in. When the list of recipients is a fact you control, this is cleaner than publishing; when it is a concern that belongs on the consumer side, publish instead. + +## Error and retry behaviour + +If the handler throws, ServiceConnect applies the retry policy and, after retries are exhausted, moves the message to the consumer's error queue. The sender has no visibility — `SendAsync` completed the moment RabbitMQ accepted the message. If the sender needs an answer, you want [Request/Reply](/ServiceConnect-CSharp/learn/messaging-patterns/request-reply/), not Send. + +## Reference + +- [`IBus.SendAsync`](/ServiceConnect-CSharp/reference/bus/ibus/#sendasynct) — the send method +- [Message options](/ServiceConnect-CSharp/reference/messages/options/) — `SendOptions` for endpoint overrides + +## What comes next + +- [Request/Reply](/ServiceConnect-CSharp/learn/messaging-patterns/request-reply/) — point-to-point, but the sender awaits a response. +- [Competing Consumers](/ServiceConnect-CSharp/learn/messaging-patterns/competing-consumers/) — point-to-point, but with several workers sharing one queue. +- [Routing Slip](/ServiceConnect-CSharp/learn/messaging-patterns/routing-slip/) — point-to-point through an ordered chain of services. diff --git a/website/src/content/docs/learn/messaging-patterns/polymorphic-messages.mdx b/website/src/content/docs/learn/messaging-patterns/polymorphic-messages.mdx new file mode 100644 index 000000000..5ba06ee93 --- /dev/null +++ b/website/src/content/docs/learn/messaging-patterns/polymorphic-messages.mdx @@ -0,0 +1,180 @@ +--- +title: Polymorphic Messages +description: Publish derived events and let a base-type handler catch the whole category. One handler, many concrete types, clean categorisation across subscribers. +--- + +**Polymorphic messages** let you categorise events in code and have one handler catch the whole category. A publisher emits a concrete event — `OrderPlaced`, `OrderShipped` — and a subscriber that handles the shared base type receives every one of them. A second subscriber can still bind a handler to one specific type for focused processing. Same publish, two handlers, different specificities. + +This page walks through the shape with a runnable example: one base type, two concrete events, two subscribers — one cross-cutting, one specific. + +## When to reach for it + +Polymorphism pays off when you have **cross-cutting subscribers that care about a category of events rather than specific ones**: + +- **Audit / outbox / archival.** "Record every domain event that happens." One handler, grows automatically as new event subtypes appear. +- **Metrics.** "Emit a counter for every `OrderEvent`." Type-specific labels come from `message.GetType().Name`. +- **Replay and debugging harnesses.** Tail a whole category of events into a dev console without enumerating subtypes. + +If your subscribers all care about specific event types, skip polymorphism — flat contracts give you the most predictable wire shape and the cleanest handler interfaces. Polymorphism is useful when categorisation is actually there in the domain, not because it happens to be a language feature. + +## The contract hierarchy + +Shared by publisher and every subscriber: + +```csharp +// Contracts/DomainEvent.cs +using ServiceConnect.Interfaces; + +public abstract class DomainEvent(Guid correlationId) : Message(correlationId) +{ + public DateTime OccurredAt { get; init; } = DateTime.UtcNow; +} +``` + +```csharp +// Contracts/OrderPlaced.cs +public sealed class OrderPlaced(Guid correlationId) : DomainEvent(correlationId) +{ + public string OrderId { get; init; } = string.Empty; + public decimal Total { get; init; } +} +``` + +```csharp +// Contracts/OrderShipped.cs +public sealed class OrderShipped(Guid correlationId) : DomainEvent(correlationId) +{ + public string OrderId { get; init; } = string.Empty; + public string Carrier { get; init; } = string.Empty; +} +``` + +A few conventions that matter: + +- **`abstract` on the base.** `DomainEvent` is not a thing you publish; it's a category. Abstract makes "can't be published by itself" a compile-time guarantee. +- **`sealed` on the leaves.** Concrete events are the contract. Sealing them stops accidental second-level hierarchies and keeps the serialised shape predictable. +- **One level of inheritance.** `OrderPlaced : DomainEvent : Message` is two hops; that's deliberate. Deeper hierarchies make the JSON shape harder to reason about, especially for polyglot consumers. + +## The cross-cutting handler + +The audit subscriber handles the base type. It uses `GetType()` on the incoming message to find out which concrete event it received: + +```csharp +// AuditSubscriber/DomainEventHandler.cs +using ServiceConnect.Interfaces; + +public sealed class DomainEventHandler : IMessageHandler +{ + public Task HandleAsync(DomainEvent message, IConsumeContext context, CancellationToken cancellationToken = default) + { + var concreteTypeName = message.GetType().Name; + var orderId = message switch + { + OrderPlaced placed => placed.OrderId, + OrderShipped shipped => shipped.OrderId, + _ => throw new InvalidOperationException( + $"Unhandled DomainEvent subtype: {message.GetType().Name}"), + }; + Console.WriteLine($"Audit: {concreteTypeName} {orderId}"); + return Task.CompletedTask; + } +} +``` + +The type switch is optional — `GetType().Name` and `ServiceConnect.Interfaces.Message.CorrelationId` alone are often enough for an audit log. Use a `switch` when the handler actually needs the specifics. + +## The specific handler + +The shipping subscriber is a plain single-type handler — exactly what you'd write without polymorphism: + +```csharp +// ShippingSubscriber/OrderShippedHandler.cs +public sealed class OrderShippedHandler : IMessageHandler +{ + public Task HandleAsync(OrderShipped message, IConsumeContext context, CancellationToken cancellationToken = default) + { + Console.WriteLine($"Shipping: {message.OrderId} via {message.Carrier}"); + return Task.CompletedTask; + } +} +``` + +Both subscribers receive the `OrderShipped` publish. The polymorphic one receives it **because its handler is registered for an ancestor type**; the specific one receives it because its handler is registered for the exact type. Nothing weird happens — the `OrderShipped` exchange fans the publish out to both bound queues, and each queue's handler runs. + +## Wiring the cross-cutting subscriber + +Here's where the pattern has its one genuine subtlety. The audit subscriber has one handler class, registered against each **concrete** event it audits — one `HandlerReference` per subtype, and deliberately **not** one for the base type: + +```csharp +// AuditSubscriber/Program.cs +using ServiceConnect.Interfaces; + +var handlerReferences = new List +{ + new() { HandlerType = typeof(DomainEventHandler), MessageType = typeof(OrderPlaced) }, + new() { HandlerType = typeof(DomainEventHandler), MessageType = typeof(OrderShipped) }, +}; + +var services = new ServiceCollection(); +services.AddSingleton>(handlerReferences); +services.AddTransient, DomainEventHandler>(); +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(/* … */); + builder.ConfigureQueues(q => q.QueueName = "audit-subscriber"); + builder.ConfigureBus(bus => bus.ScanForMessageHandlers = false); +}); +``` + +The handler is registered in DI against the **base** type (`IMessageHandler`), but the `HandlerReference` entries name the **concrete** types. Why the split? + +## Dispatch versus subscription + +- **Subscription is per concrete type.** Each `HandlerReference` binds the subscriber's queue to exactly one RabbitMQ exchange — the one derived from that `MessageType` (the full type name with the namespace dots removed; [as described on the Pub/Sub page](/ServiceConnect-CSharp/learn/messaging-patterns/pub-sub/#how-the-fan-out-works)). Listing `OrderPlaced` and `OrderShipped` binds the audit queue to those two concrete exchanges. +- **Dispatch walks the type hierarchy.** When a delivery arrives, the bus resolves its concrete type and walks up the inheritance chain, invoking every handler registered for that type or any ancestor. `DomainEventHandler` is registered as `IMessageHandler`, so the walk from `OrderPlaced` up to `DomainEvent` finds it. The handler receives the **concrete** instance, so `message.GetType()` and the type `switch` above work. +- **Don't list the base type.** The publisher fans every derived publish out to its own exchange **and** every ancestor exchange (see [The publisher](#the-publisher) below). The audit queue is already bound to the concrete exchanges, so it gets each event exactly once. Adding a `HandlerReference` for `DomainEvent` would *also* bind the `DomainEvent` exchange and deliver each event a **second** time — and that base-exchange copy is re-stamped to `DomainEvent`, which, being abstract, cannot be deserialised at all. + +Listing the concrete subtypes and omitting the base keeps the subscription surface explicit in the bootstrap code, and means a brand-new subtype isn't silently swept in until you add it. + +If instead you want a base-type subscriber to catch **new** subtypes automatically without enumerating them, register a single `HandlerReference` for the base type and make that base type **concrete** (not `abstract`). The producer's fan-out delivers every derived event to the base exchange, and the handler receives it typed as the base — you give up the concrete runtime type (`GetType()` returns the base) in exchange for not listing subtypes. Choose whichever fits how the handler uses the message. + +## The publisher + +The publisher has nothing special to do — `PublishAsync` automatically fans each derived event out to its own exchange and every ancestor exchange, so both concrete subscribers and base-type subscribers receive it: + +```csharp +// Publisher/Program.cs +var correlationId = Guid.NewGuid(); + +await bus.PublishAsync(new OrderPlaced(correlationId) +{ + OrderId = "order-42", + Total = 129.99m, +}); + +await bus.PublishAsync(new OrderShipped(correlationId) +{ + OrderId = "order-42", + Carrier = "UPS", +}); +``` + +Two publishes, one correlation id — downstream logs can tie them together. See [Messages / correlation id in practice](/ServiceConnect-CSharp/learn/core-concepts/messages/#correlation-id-in-practice). + +## Trade-offs worth knowing + +- **Serialised shape is coupled across levels.** Every derived type's JSON payload carries the base type's fields. Renaming or changing a base field is a wire-format change for every subtype simultaneously. Prefer adding fields on the base, never changing them — the same rule as any contract. +- **Polyglot consumers.** If a non-.NET service deserialises these messages, a flat contract is easier to reason about than an inherited one. For mixed-language systems, consider duplicating shared fields across flat message types instead of a shared base class. Composition over inheritance buys you wire predictability at the cost of some local duplication. +- **Keep the hierarchy shallow.** One level of inheritance is the documented sweet spot. Deeper trees multiply the above trade-offs without adding much value. + +## Reference + +- [`IBus.PublishAsync`](/ServiceConnect-CSharp/reference/bus/ibus/#publishasynct) — the publish method; unchanged for polymorphic types. +- [`HandlerReference`](/ServiceConnect-CSharp/learn/core-concepts/handlers/#explicit-registration) — the type that maps a message type to its handler. +- [Messages](/ServiceConnect-CSharp/learn/core-concepts/messages/) — the base-class and correlation-id conventions this page builds on. + +## What comes next + +- [Pub/Sub](/ServiceConnect-CSharp/learn/messaging-patterns/pub-sub/) — the base fan-out pattern polymorphic dispatch rides on top of. +- [Content-Based Routing](/ServiceConnect-CSharp/learn/messaging-patterns/content-based-routing/) — the other answer to "which subscriber sees which message", based on message type rather than inheritance. +- [Samples → Polymorphic Messages](/ServiceConnect-CSharp/samples/#polymorphic-messages) — the runnable example this page walks through. diff --git a/website/src/content/docs/learn/messaging-patterns/process-manager.mdx b/website/src/content/docs/learn/messaging-patterns/process-manager.mdx new file mode 100644 index 000000000..29961db49 --- /dev/null +++ b/website/src/content/docs/learn/messaging-patterns/process-manager.mdx @@ -0,0 +1,233 @@ +--- +title: Process Manager +description: Coordinate a long-running workflow across services — persist state between messages, react to each one, advance when all conditions are met. +--- + +**Process Manager** (sometimes called *saga*) is the pattern for workflows that span several messages over time. "When we've seen inventory reserved *and* payment captured for this order, ship it." The bus correlates each incoming message to a persisted state object, hands the handler the state, and saves any changes the handler makes when it returns. + +Unlike [Routing Slip](/ServiceConnect-CSharp/learn/messaging-patterns/routing-slip/), the path is not fixed up front. The process manager decides what happens next based on what it has already seen — which makes it the right shape for workflows with branches, races, and timeouts. + +## When to use it + +- The workflow spans multiple messages arriving at different times, possibly in different orders. +- Deciding what to do next requires knowing what has already happened. +- You need the coordination state to survive process restarts. + +If the steps are a fixed ordered chain, prefer [Routing Slip](/ServiceConnect-CSharp/learn/messaging-patterns/routing-slip/) — it carries the itinerary in the message and needs no persistence. If the steps are independent, [Pub/Sub](/ServiceConnect-CSharp/learn/messaging-patterns/pub-sub/) is enough. + +## The contract + +Three types. The messages that drive the workflow, and the persisted state: + +```csharp +// Contracts/Workflow.cs +using ServiceConnect.Interfaces; + +public sealed class OrderSubmitted(Guid correlationId) : Message(correlationId) +{ + public string OrderNumber { get; init; } = string.Empty; +} + +public sealed class InventoryReserved(Guid correlationId) : Message(correlationId) +{ + public string OrderNumber { get; init; } = string.Empty; +} + +public sealed class PaymentCaptured(Guid correlationId) : Message(correlationId) { } + +public sealed class FulfillmentState : IProcessManagerData +{ + public Guid CorrelationId { get; set; } + public string OrderNumber { get; set; } = string.Empty; + public bool IsSubmitted { get; set; } + public bool InventoryReserved { get; set; } + public bool PaymentCaptured { get; set; } + public bool IsCompleted { get; set; } +} +``` + +`IProcessManagerData` requires exactly one thing — a `Guid CorrelationId`. Everything else is your workflow's own state: what step we're on, what was submitted, what has come back. The messages carry the same `CorrelationId`, which is how the bus finds the right state record. + +## The handler + +A process handler implements `IProcessHandler` for each message type in the workflow. One class commonly handles them all — the state object is the shared piece: + +```csharp +// Orchestrator/FulfillmentProcessHandler.cs +// WorkflowQueues is a record registered as a singleton in DI and injected here. +public sealed class FulfillmentProcessHandler(WorkflowQueues queues) : + IProcessHandler, + IProcessHandler, + IProcessHandler +{ + private readonly WorkflowQueues _queues = queues; + + public async Task HandleAsync(OrderSubmitted message, FulfillmentState data, IConsumeContext context, CancellationToken cancellationToken = default) + { + if (data.IsSubmitted) return; // idempotent — saw this already + + data.OrderNumber = message.OrderNumber; + data.IsSubmitted = true; + + await context.Bus.SendAsync( + new ReserveInventory(message.CorrelationId) { OrderNumber = message.OrderNumber }, + new SendOptions { EndPoint = _queues.InventoryQueueName }); + } + + public async Task HandleAsync(InventoryReserved message, FulfillmentState data, IConsumeContext context, CancellationToken cancellationToken = default) + { + if (data.InventoryReserved) return; + + data.InventoryReserved = true; + + await context.Bus.SendAsync( + new CapturePayment(message.CorrelationId), + new SendOptions { EndPoint = _queues.PaymentQueueName }); + } + + public Task HandleAsync(PaymentCaptured message, FulfillmentState data, IConsumeContext context, CancellationToken cancellationToken = default) + { + if (data.PaymentCaptured) return Task.CompletedTask; + + data.PaymentCaptured = true; + data.IsCompleted = true; + return Task.CompletedTask; + } +} +``` + +Three things to notice: + +- **The bus hands you `data` pre-loaded.** If a state record already exists for this `CorrelationId`, you receive it. If not, you receive a freshly-constructed empty one (hence the `new()` constraint on `TData`). The first message in a workflow effectively creates the record. +- **Mutations persist automatically.** When `HandleAsync` returns cleanly, the bus writes the state back. You don't call save. +- **State flags carry intent.** `IsSubmitted`, `InventoryReserved`, `PaymentCaptured` let the handler recognise a replay — an at-least-once redelivery of the same message — and noop instead of double-processing. The flag checks at the top of each handler are the idempotency gate. + +## Correlation + +By default, the bus maps `message.CorrelationId` to `data.CorrelationId`. That is what [Messages](/ServiceConnect-CSharp/learn/core-concepts/messages/) means when it says the correlation id is load-bearing. + +When the default isn't right — a message correlates on `OrderNumber`, for instance, because it was produced by a service that doesn't know the workflow id — override `ConfigureMapper`: + +```csharp +void IProcessHandler.ConfigureMapper(IProcessManagerPropertyMapper mapper) +{ + mapper.ConfigureMapping( + d => d.OrderNumber, + m => m.OrderNumber); +} +``` + +The bus will look up the state record by `OrderNumber` instead. Use this sparingly — correlation id is cheaper and doesn't risk collisions. + +## Persistence + +State has to live somewhere that survives crashes. ServiceConnect ships a MongoDB provider; register it on the bus builder: + +```csharp +// Orchestrator/Program.cs +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(t => { t.Host = "localhost"; }); + builder.ConfigureQueues(q => q.QueueName = "fulfillment-orchestrator"); + builder.UseMongoDbPersistence(options => + { + options.ConnectionString = "mongodb://localhost:27017"; + options.DatabaseName = "fulfillment"; + }); +}); +``` + +The first handler invocation for a given `CorrelationId` inserts the document; subsequent ones update it. Completing the workflow does not delete it — completed sagas are a record of what happened, which you may want to query or archive. + +Without a persistence provider, the process manager has nowhere to put state and the bus will fail fast at startup. This is the correct behaviour — silently forgetting state between messages would be worse. + +### Fresh-copy contract for custom persistence + +Every call to `FindDataAsync` must return a **fresh** `IPersistenceData.Data` reference. Two successive loads for the same correlation id must produce independent objects — mutations to one must not affect the other. Both built-in providers comply: the InMemory provider deep-clones on every read; MongoDB deserialises a new object from the wire. Custom implementations (Postgres, SQL Server, Redis, …) must do the same. See [`IProcessManagerFinder`](/ServiceConnect-CSharp/reference/extension-points/persistence/iprocessmanagerfinder/#finddataasynct) for details. + +### InMemory deep-clone limitations + +The InMemory provider's deep-clone uses `System.Text.Json` to round-trip saga data, which covers the regular-public-property shape every saga in this codebase uses but does not match the BSON layer's introspection. Two specific shapes are unsupported by the InMemory persistor and will silently lose state through the round-trip: + +- **Polymorphic nested values.** A property declared as a base type or interface that holds a derived runtime instance round-trips as the declared type, losing the derived properties. Annotate the base with `[JsonDerivedType(typeof(Derived), "discriminator")]` to teach STJ about the polymorphism, or store the runtime type as a discriminator field and reconstruct on read. +- **Explicit-interface auto-properties.** A property declared as an explicit-interface implementation (`Guid IFoo.FooId { get; set; }`) is invisible to STJ and round-trips as the field default. Expose the backing field as a public property if you need it preserved through InMemory. + +The MongoDB provider has neither limitation — BSON's `_t` discriminator handles polymorphism, and `BsonClassMap` discovers explicit-interface auto-properties. Use the MongoDB provider for any saga that depends on these shapes. + +## Handler registration + +Each message type needs its own DI registration, because the bus resolves per message: + +```csharp +services.AddTransient, FulfillmentProcessHandler>(); +services.AddTransient, FulfillmentProcessHandler>(); +services.AddTransient, FulfillmentProcessHandler>(); + +services.AddSingleton>(new List +{ + new() { HandlerType = typeof(FulfillmentProcessHandler), MessageType = typeof(OrderSubmitted) }, + new() { HandlerType = typeof(FulfillmentProcessHandler), MessageType = typeof(InventoryReserved) }, + new() { HandlerType = typeof(FulfillmentProcessHandler), MessageType = typeof(PaymentCaptured) }, +}); +``` + +The `HandlerReference` list tells the dispatch pipeline which message types route to which handler type. The transient DI registrations tell the container how to build one when a message arrives. Both are needed. + +## Timeouts + +Some workflows need to react to *nothing happening*. "If we haven't received `PaymentCaptured` within 24 hours, cancel the order." The pattern for that is `RequestTimeoutAsync`: + +```csharp +public async Task HandleAsync(InventoryReserved message, FulfillmentState data, IConsumeContext context, CancellationToken cancellationToken = default) +{ + data.InventoryReserved = true; + + // Use data.CorrelationId — the saga's own id — not message.CorrelationId. + // CancellationToken.None: the token here cancels the timeout-store insert, not the + // scheduled delivery. Once the row is in the store the delay fires regardless of + // bus shutdown — passing context.CancellationToken would abandon the insert mid-shutdown + // and the timeout would never be scheduled. Pass None when the schedule must survive + // graceful shutdown; pass context.CancellationToken only if you genuinely want the + // schedule to be cooperatively abandoned on bus stop. + await context.Bus.RequestTimeoutAsync(data.CorrelationId, TimeSpan.FromHours(24), CancellationToken.None); +} + +public Task HandleAsync(TimeoutMessage message, FulfillmentState data, IConsumeContext context, CancellationToken cancellationToken = default) +{ + if (data.IsCompleted) return Task.CompletedTask; // payment already arrived — ignore + + // compensate: release inventory, notify the customer, mark cancelled + data.IsCompleted = true; + return Task.CompletedTask; +} +``` + +`RequestTimeoutAsync` schedules a `TimeoutMessage` carrying the same correlation id to be delivered back to this queue after the delay. Handle it like any other message — add `IProcessHandler` to the class. + +Timeouts require the bus to be told they're in use, because a background service polls the schedule. Turn it on in bus configuration: + +```csharp +builder.ConfigureBus(bus => +{ + bus.EnableProcessManagerTimeouts = true; +}); +``` + +If the workflow completes before the timeout fires, the state flag check in the timeout handler is what stops you from compensating a workflow that already succeeded. + +### Timeout dispatch is at-most-once while the lease holds + +The timeout polling service operates under a lease that prevents two competing instances from dispatching the same `TimeoutMessage` simultaneously. Within a single lease period, dispatch is at-most-once: after sending the timeout message the polling service performs a second check to confirm the lease still holds before advancing the record. If the lease was concurrently acquired by another instance between the send and the re-check, the duplicate send is detected and the record is not advanced, so the second instance does not resend. This does not guarantee exactly-once across process restarts — a crash between send and re-check can cause redelivery, which is why the idempotency flag check in the timeout handler (`if (data.IsCompleted) return`) is always necessary. + +## Reference + +- [`IProcessHandler`](/ServiceConnect-CSharp/reference/process-managers/iprocesshandler/) — saga step contract +- [`IProcessManagerData`](/ServiceConnect-CSharp/reference/process-managers/iprocessmanagerdata/) — saga state marker +- [`IProcessManagerPropertyMapper`](/ServiceConnect-CSharp/reference/process-managers/iprocessmanagerpropertymapper/) — correlation mapping +- [`IProcessManagerFinder`](/ServiceConnect-CSharp/reference/extension-points/persistence/iprocessmanagerfinder/) — extension point for custom persistence + +## What comes next + +- [Routing Slip](/ServiceConnect-CSharp/learn/messaging-patterns/routing-slip/) — simpler alternative when the sequence is fixed. +- [Aggregator](/ServiceConnect-CSharp/learn/messaging-patterns/aggregator/) — collect a window of messages and act on the batch. Conceptually related: both accumulate state across messages. +- [Messages](/ServiceConnect-CSharp/learn/core-concepts/messages/) — why the correlation id has to be right. diff --git a/website/src/content/docs/learn/messaging-patterns/pub-sub.mdx b/website/src/content/docs/learn/messaging-patterns/pub-sub.mdx new file mode 100644 index 000000000..531a2ef24 --- /dev/null +++ b/website/src/content/docs/learn/messaging-patterns/pub-sub.mdx @@ -0,0 +1,158 @@ +--- +title: Pub/Sub +description: Publish an event once and let every interested subscriber react independently, without the publisher knowing who is listening. +--- + +**Pub/Sub** is the pattern you reach for when more than one service cares about the same fact. A publisher emits an event — "an order was placed" — and every subscriber that has registered interest in that event gets a copy. The publisher doesn't know, and shouldn't care, who the subscribers are. + +This page walks through the full shape with a runnable example: one publisher, two subscribers, one event. + +## The contract + +A shared project holds the message type. Both the publisher and the subscribers reference it — that's what makes them agree on the wire format. + +```csharp +// Contracts/OrderPlaced.cs +using ServiceConnect.Interfaces; + +public sealed class OrderPlaced(Guid correlationId) : Message(correlationId) +{ + public string OrderId { get; init; } = string.Empty; +} +``` + +Nothing publisher-specific, nothing subscriber-specific. A command-events-contracts project with a single event is typical. See [Messages](/ServiceConnect-CSharp/learn/core-concepts/messages/) for the design conventions worth following. + +## The publisher + +The publisher does one thing: it builds a bus and calls `PublishAsync`. + +```csharp +// Publisher/Program.cs +using Microsoft.Extensions.DependencyInjection; +using PubSubDemo.Contracts; +using ServiceConnect; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; + +var services = new ServiceCollection(); +services.AddLogging(); +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(t => + { + t.Host = "localhost"; + t.Username = "guest"; + t.Password = "guest"; + }); + builder.ConfigureQueues(q => q.QueueName = "orders-publisher"); +}); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); + +await bus.PublishAsync(new OrderPlaced(Guid.NewGuid()) { OrderId = "order-100" }); +Console.WriteLine("Published order-100"); +``` + +Notice what is missing: + +- **No destination.** `PublishAsync` doesn't take a queue name or a list of endpoints. Fan-out is RabbitMQ's job, not yours. +- **No subscriber list.** The publisher has no idea how many subscribers are running or where they are. It publishes into an exchange and walks away. + +That is the entire point. A new subscriber can come online tomorrow without any change to the publisher. + +## The subscribers + +Each subscriber is its own process with its own queue. All it needs is a handler for the event: + +```csharp +// AnalyticsSubscriber/OrderPlacedAnalyticsHandler.cs +using PubSubDemo.Contracts; +using ServiceConnect.Interfaces; + +public sealed class OrderPlacedAnalyticsHandler : IMessageHandler +{ + public Task HandleAsync(OrderPlaced message, IConsumeContext context, CancellationToken cancellationToken = default) + { + Console.WriteLine($"Analytics: recording {message.OrderId}"); + return Task.CompletedTask; + } +} +``` + +And a bootstrap that registers the handler, starts consuming, and waits: + +```csharp +// AnalyticsSubscriber/Program.cs +var services = new ServiceCollection(); +services.AddLogging(); +services.AddSingleton>(new List +{ + new() { HandlerType = typeof(OrderPlacedAnalyticsHandler), MessageType = typeof(OrderPlaced) }, +}); +services.AddTransient, OrderPlacedAnalyticsHandler>(); +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(t => { /* … */ }); + builder.ConfigureQueues(q => q.QueueName = "analytics"); + builder.ConfigureBus(bus => bus.ScanForMessageHandlers = false); +}); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); +await bus.StartConsumingAsync(); +await Task.Delay(Timeout.InfiniteTimeSpan); +``` + +A billing subscriber is structurally identical — different queue name (`billing`), different handler class — but the same shape. Run both, and each gets its own copy of every published `OrderPlaced`. + +## How the fan-out works + +Under the hood, ServiceConnect publishes through a RabbitMQ **fanout exchange** whose name is derived from the message type — its full type name with the namespace dots removed (`Type.FullName.Replace(".", string.Empty)`), not the plain type name. When a bus starts consuming and has a handler for `OrderPlaced`, it creates a binding from that exchange to its own queue. Every published message is copied to every bound queue. + +``` + ┌─────────────┐ + │ analytics Q │ ──▶ analytics handler + └─────────────┘ + ▲ + publisher ──▶ OrderPlaced exchange ─┤ + ▼ + ┌─────────────┐ + │ billing Q │ ──▶ billing handler + └─────────────┘ +``` + +A few consequences worth understanding: + +- **Subscribers added after a publish don't receive old messages.** Bindings only exist once a subscriber's bus starts consuming. If no subscriber was bound when the publisher fired, the message has nowhere to go. This is not a durability problem — messages already in a subscriber's queue survive restarts — but a missing subscriber at publish time means a missing delivery. +- **Each subscriber gets a full copy.** Pub/sub is not load-balanced delivery. If you want *one-of-many workers* semantics, you want [Competing Consumers](/ServiceConnect-CSharp/learn/messaging-patterns/competing-consumers/), not Pub/Sub. +- **The publisher blocks on the broker, not on subscribers.** `PublishAsync` completes when RabbitMQ has accepted the message. It does not wait for subscribers to process it — pub/sub is fire-and-forget by design. + +## Events, not commands + +Pub/Sub works because the message is an **event**: a past-tense fact that multiple interested parties may react to. Try to publish a command (`ChargeCreditCard`, `SendEmail`) and you get weird emergent behaviour — every subscriber tries to run the command, or worse, exactly one does because only one is registered today and now the "command" semantics secretly depend on subscription state. + +Rule of thumb: + +- **Event**: past-tense fact (`OrderPlaced`, `PaymentSettled`, `CustomerRegistered`). Publish. +- **Command**: imperative intent (`PlaceOrder`, `SettlePayment`, `RegisterCustomer`). Send. + +See [Messages](/ServiceConnect-CSharp/learn/core-concepts/messages/#designing-contracts-that-age-well) for more on the distinction. + +## Error and retry behaviour + +If a subscriber's handler throws, **only that subscriber's message is affected.** Other subscribers have already received their own copy into their own queue, and their handlers have already run (or will run independently). Pub/Sub isolates subscriber failures by construction. + +The failing subscriber's message is retried per its bus's policy and eventually lands in that subscriber's error queue. The publisher — long since returned from `PublishAsync` — has no visibility into this, which is correct: the publisher produced a fact, what happens next is a subscriber concern. + +## Reference + +- [`IBus.PublishAsync`](/ServiceConnect-CSharp/reference/bus/ibus/#publishasynct) — the publish method +- [Message options](/ServiceConnect-CSharp/reference/messages/options/) — `PublishOptions` for headers and routing overrides + +## What comes next + +- [Point-to-Point](/ServiceConnect-CSharp/learn/messaging-patterns/point-to-point/) — the opposite pattern, when you know exactly who the recipient is. +- [Content-Based Routing](/ServiceConnect-CSharp/learn/messaging-patterns/content-based-routing/) — when different subscribers need different subsets of events. +- [Endpoints](/ServiceConnect-CSharp/learn/core-concepts/endpoints/) — how subscriber bindings are created and managed. diff --git a/website/src/content/docs/learn/messaging-patterns/request-reply.mdx b/website/src/content/docs/learn/messaging-patterns/request-reply.mdx new file mode 100644 index 000000000..7a6a55bf8 --- /dev/null +++ b/website/src/content/docs/learn/messaging-patterns/request-reply.mdx @@ -0,0 +1,161 @@ +--- +title: Request/Reply +description: Send a message and await a response — point-to-point, asynchronous on the wire, synchronous at the call site. +--- + +**Request/Reply** is the pattern for "I need an answer." You send a message, another service handles it and replies, and your `await` returns the response when it arrives. Asynchronous over the network, synchronous in your code. + +It is still point-to-point — one request, one responder — but unlike plain [Send](/ServiceConnect-CSharp/learn/messaging-patterns/point-to-point/), the caller blocks on the reply rather than walking away. + +## When to use it + +- You need a value back — a quote, a status, a lookup result. +- The caller cannot make progress without the response. +- One service owns the answer. Fan-out to multiple responders is [Scatter-Gather](/ServiceConnect-CSharp/learn/messaging-patterns/scatter-gather/), not this pattern. + +Rule of thumb: if you'd reach for a synchronous HTTP call, you probably want request/reply. It carries the same shape — caller waits for callee — but runs over the message bus, which gives you retries, timeouts, and the same correlation-id story as the rest of your messaging. + +## The contract + +Two message types — the request and the reply: + +```csharp +// Contracts/Quote.cs +using ServiceConnect.Interfaces; + +public sealed class QuoteRequest(Guid correlationId) : Message(correlationId) +{ + public string ProductCode { get; init; } = string.Empty; +} + +public sealed class QuoteResponse(Guid correlationId) : Message(correlationId) +{ + public decimal Price { get; init; } +} +``` + +Both derive from `Message`. The correlation id on the reply carries through from the request — that's how ServiceConnect matches an incoming reply to the pending `await` on the requester. + +## The requester + +Two things are different from plain `SendAsync`: + +1. **The requester must be consuming.** Replies land on the requester's queue, so the bus has to be started before the request goes out. +2. **You call `SendRequestAsync`** and `await` the reply. + +```csharp +// Requester/Program.cs +using Microsoft.Extensions.DependencyInjection; +using QuoteDemo.Contracts; +using ServiceConnect; +using ServiceConnect.Client.RabbitMQ; +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; + +var services = new ServiceCollection(); +services.AddLogging(); +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(t => + { + t.Host = "localhost"; + t.Username = "guest"; + t.Password = "guest"; + }); + builder.ConfigureQueues(q => q.QueueName = "quotes-requester"); +}); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); + +await bus.StartConsumingAsync(); // required: replies come back on our queue + +var response = await bus.SendRequestAsync( + new QuoteRequest(Guid.NewGuid()) { ProductCode = "widget" }, + new RequestOptions { EndPoint = "quotes-responder", Timeout = 30_000 }); + +Console.WriteLine($"Got price {response.Price}"); +``` + +`RequestOptions.Timeout` is in **milliseconds** and defaults to 10,000. When the timeout elapses without a reply, `SendRequestAsync` throws — a request without a bounded wait would leak state forever, so ServiceConnect does not let you opt out. + +## The responder + +The responder is a normal message handler with one extra rule: reply via `IConsumeContext.ReplyAsync`, not via a fresh `SendAsync`. + +```csharp +// Responder/QuoteRequestHandler.cs +using QuoteDemo.Contracts; +using ServiceConnect.Interfaces; + +public sealed class QuoteRequestHandler : IMessageHandler +{ + public async Task HandleAsync(QuoteRequest message, IConsumeContext context, CancellationToken cancellationToken = default) + { + var price = PriceFor(message.ProductCode); + await context.ReplyAsync(new QuoteResponse(message.CorrelationId) + { + Price = price, + }); + } + + private static decimal PriceFor(string code) => code switch + { + "widget" => 42.50m, + _ => 0m, + }; +} +``` + +`ReplyAsync` sets a `ResponseMessageId` header that ServiceConnect uses to correlate the reply back to the caller's pending `await`. A plain `Bus.SendAsync` back to the requester's queue **will not** resolve the outstanding request — it would arrive, land in the queue, and go nowhere. Always use `ReplyAsync` when replying to a request. + +The responder's bootstrap is structurally identical to any other consumer — register the handler, name the queue, call `StartConsumingAsync`. See [Handlers](/ServiceConnect-CSharp/learn/core-concepts/handlers/) for the full shape. + +## Timeouts, not retries + +Request/reply has **timeout semantics**, not retry semantics. If the responder is slow or unreachable, the caller eventually sees a timeout exception; the request itself is not automatically re-sent. This is deliberate — a request is usually a user-facing operation where the caller wants to know quickly that something is wrong, rather than wait another 30 seconds for a retry. + +If you need resilient at-least-once delivery with background retries, a plain `SendAsync` + an event-based reply path is the right shape, not a blocking request/reply. + +The request methods raise `RequestSendCancelledException` (inheriting from `OperationCanceledException`) when the outbound send pipeline cancels before the request reaches the broker — distinct from a timeout (`RequestTimeoutException`) and from caller-token cancellation (`OperationCanceledException`). It applies to `SendRequestAsync`, `SendRequestMultiAsync`, and `PublishRequestAsync`. + +## Correlation-id flow + +ServiceConnect wires the correlation id through for you: + +- The request carries a correlation id you generate (or that your handler inherited from an upstream message). +- The responder's reply uses `message.CorrelationId` — the id from the request. +- Any logging, tracing, or process-manager state tied to that id can now follow the conversation end-to-end. + +If your responder needs to publish downstream events as side effects, pass `message.CorrelationId` through to those events too. That is how a web of related messages stays tied to a single user action. + +## Configured destinations + +Like [Send](/ServiceConnect-CSharp/learn/messaging-patterns/point-to-point/#configured-destinations), request/reply can omit `EndPoint` if you have mapped the request type to a queue at startup: + +```csharp +builder.ConfigureQueues(q => +{ + q.QueueName = "quotes-requester"; + q.AddQueueMapping(typeof(QuoteRequest), "quotes-responder"); +}); + +// Later: +var response = await bus.SendRequestAsync( + new QuoteRequest(Guid.NewGuid()) { ProductCode = "widget" }, + new RequestOptions { Timeout = 30_000 }); +``` + +Inline `RequestOptions.EndPoint` still overrides the mapping per call. As with Send, if no mapping and no endpoint exists, the call fails — ServiceConnect does not guess. + +## Reference + +- [`IBus.SendRequestAsync`](/ServiceConnect-CSharp/reference/bus/ibus/#sendrequestasynctrequest-treply) — single-reply request +- [`IBus.SendRequestMultiAsync`](/ServiceConnect-CSharp/reference/bus/ibus/#sendrequestmultiasynctrequest-treply) — multi-reply request +- [Message options](/ServiceConnect-CSharp/reference/messages/options/) — `RequestOptions` for timeouts and expected replies + +## What comes next + +- [Scatter-Gather](/ServiceConnect-CSharp/learn/messaging-patterns/scatter-gather/) — request/reply with several responders and a bounded set of replies. +- [Point-to-Point](/ServiceConnect-CSharp/learn/messaging-patterns/point-to-point/) — for when you don't need an answer. +- [Handlers](/ServiceConnect-CSharp/learn/core-concepts/handlers/) — the `Context.ReplyAsync` method in context. diff --git a/website/src/content/docs/learn/messaging-patterns/routing-slip.mdx b/website/src/content/docs/learn/messaging-patterns/routing-slip.mdx new file mode 100644 index 000000000..a09bf3836 --- /dev/null +++ b/website/src/content/docs/learn/messaging-patterns/routing-slip.mdx @@ -0,0 +1,109 @@ +--- +title: Routing Slip +description: Send a message through an ordered chain of services — each stage does its work and the message advances automatically. +--- + +**Routing Slip** is the pattern for an ordered, multi-stage pipeline: inventory, then billing, then shipping. Each stage runs on its own service; between stages, the message carries its own itinerary. The initiator declares the route once; the stages don't need to know about each other. + +Think of it like a physical inter-office envelope with a list of offices clipped to the front. Each office does its work, crosses itself off, and passes the envelope to whoever is next on the list. + +## When to use it + +- You have a sequence of steps that must run in order. +- The set of steps is known at the start of the flow, not decided later. +- Each step is owned by a different service and you don't want each service to know the identity of the next one. + +If steps can run in parallel, you want [Scatter-Gather](/ServiceConnect-CSharp/learn/messaging-patterns/scatter-gather/) or plain [Pub/Sub](/ServiceConnect-CSharp/learn/messaging-patterns/pub-sub/). If the step sequence depends on decisions made mid-flow, you want a [Process Manager](/ServiceConnect-CSharp/learn/messaging-patterns/process-manager/). Routing Slip is for the straight line. + +## The contract + +A single message type is carried through the pipeline. Nothing special is required of it — just a message: + +```csharp +// Contracts/RoutingSlipOrder.cs +using ServiceConnect.Interfaces; + +public sealed class RoutingSlipOrder(Guid correlationId) : Message(correlationId) +{ + public string OrderId { get; init; } = string.Empty; + public string CurrentStep { get; set; } = string.Empty; +} +``` + +`CurrentStep` is a domain field — it is what the message represents, not how ServiceConnect routes it. The routing itself lives in a header, invisible to your code. + +## The initiator + +The initiator calls `RouteAsync` with the message and the ordered list of destination queues: + +```csharp +// Starter/Program.cs +await bus.RouteAsync( + new RoutingSlipOrder(Guid.NewGuid()) { OrderId = "order-001" }, + new[] { "inventory", "billing", "shipping" }); +``` + +ServiceConnect attaches a `RoutingSlip` header listing the remaining stops, sends the message to the first queue, and that is the last the initiator sees of it. The pipeline runs itself from there. + +## The stages + +Each stage is a normal consumer with a handler for the message type. **The handler does not forward the message** — the bus takes care of that: + +```csharp +// InventoryStep/RoutingSlipOrderHandler.cs +public sealed class RoutingSlipOrderHandler : IMessageHandler +{ + public async Task HandleAsync(RoutingSlipOrder message, IConsumeContext context, CancellationToken cancellationToken = default) + { + message.CurrentStep = "InventoryStep"; + await ReserveStockAsync(message.OrderId); + // No forwarding here — ServiceConnect reads the RoutingSlip header + // and sends the message to the next stage after this handler returns. + } + + private Task ReserveStockAsync(string orderId) => Task.CompletedTask; +} +``` + +The stage's bootstrap is identical to any other consumer: declare the queue, register the handler, start consuming. Nothing special is needed to participate in a routing slip. + +After `HandleAsync` returns cleanly, the handler processor consults the `RoutingSlip` header, pops the current queue off the list, and forwards the message to the next queue. When the list is empty the message has reached the end and is acknowledged; it does not go anywhere else. + +## The mechanics + +A few details worth understanding, because they determine what the pattern can and cannot do: + +- **The header is the truth.** The list of remaining stops travels on the wire with every hop. Restarting a stage mid-flow doesn't lose the itinerary — it's in the message. +- **Forwarding is automatic and bus-configurable.** The `EnableRoutingSlipProcessing` flag (default `true`) on the bus's configuration is what lights up the forwarding behaviour. If you set it to `false`, routing-slip headers are silently ignored — a useful escape hatch when a service wants to receive a message but not propagate it. +- **Stage failure stops the pipeline.** If a stage's handler throws and exhausts retries, the message lands in that stage's error queue; the remaining stages never see it. Operations need to decide what to do — re-route from the error queue, compensate previous stages, or alert. +- **Stages can mutate the message.** The bus forwards the same message instance, so changes a stage makes to the body are visible to later stages. This is the *only* message-mutation pattern in ServiceConnect where this is intentional — elsewhere, messages are immutable once constructed. + +### Slip drop on handler throw + +When a handler throws, the routing slip is **dropped from the forward path** for that delivery attempt. The message goes through the normal retry / error-queue machinery without forwarding to the next stage. The slip data is **preserved in the envelope's `RoutingSlip` header** — it travels with the message to the error queue so an operator can replay from that stage and have the pipeline continue from where it failed. + +This means: + +- A handler that throws does not accidentally forward a partial result to downstream stages. +- The full itinerary is available for DLQ-based replay — the replayed message re-enters the pipeline at the faulting stage and continues through the remaining stops. + +### Cross-service routing slips + +Routing-slip destinations are validated by format only — `RouteAsync` does not require destinations to appear in the local bus's queue configuration, so **destinations that belong to other services are fully supported**. As long as the destination name is non-null, non-empty/whitespace, and contains no commas, `RouteAsync` accepts it and the transport delivers to that queue; otherwise it throws `ArgumentException`. + +```csharp +// Routing across three services that the inventory service has no local config for: +await bus.RouteAsync( + new RoutingSlipOrder(Guid.NewGuid()) { OrderId = "order-001" }, + new[] { "billing-service", "fraud-check-service", "shipping-service" }); +``` + +## When to prefer Pub/Sub instead + +If the "steps" are actually independent reactions to an event — analytics, email, cache invalidation, search index update — those want [Pub/Sub](/ServiceConnect-CSharp/learn/messaging-patterns/pub-sub/), not a routing slip. Use a routing slip when the order matters: billing must happen after inventory, shipping must happen after billing. Use pub/sub when the order does not matter and the reactions are independent of each other's success. + +## What comes next + +- [Process Manager](/ServiceConnect-CSharp/learn/messaging-patterns/process-manager/) — when the step sequence is not fixed and mid-flow decisions drive the path. +- [Pub/Sub](/ServiceConnect-CSharp/learn/messaging-patterns/pub-sub/) — when order doesn't matter and reactions are independent. +- [Endpoints](/ServiceConnect-CSharp/learn/core-concepts/endpoints/) — how the queue names the slip refers to are declared. diff --git a/website/src/content/docs/learn/messaging-patterns/scatter-gather.mdx b/website/src/content/docs/learn/messaging-patterns/scatter-gather.mdx new file mode 100644 index 000000000..4133b9f02 --- /dev/null +++ b/website/src/content/docs/learn/messaging-patterns/scatter-gather.mdx @@ -0,0 +1,145 @@ +--- +title: Scatter-Gather +description: Fan a request out to several responders in parallel and collect the replies into one list — request/reply, scaled sideways. +--- + +**Scatter-Gather** sends the same request to several services at once, waits for their replies, and hands you back the collected results. It is the many-responders cousin of [Request/Reply](/ServiceConnect-CSharp/learn/messaging-patterns/request-reply/): one call site, one outgoing request, *N* replies, one return value. + +The canonical use is parallel lookup — "ask every catalog for what they have that matches this query" — but the shape fits anywhere you'd otherwise write a `Task.WhenAll` of HTTP calls. + +## When to use it + +- You have several services that can answer the same question independently. +- You want the answers in parallel, not one at a time. +- Partial results are acceptable — missing one responder shouldn't fail the whole operation. + +If you need every responder's answer or none at all, this is not the right pattern — you want a transactional coordination tool, not a messaging one. Scatter-Gather completes when a time budget expires, not when every responder is guaranteed to have replied. + +## The contract + +One request type, one reply type. Same shape as request/reply: + +```csharp +// Contracts/Search.cs +using ServiceConnect.Interfaces; + +public sealed class SearchRequest(Guid correlationId) : Message(correlationId) +{ + public string Query { get; init; } = string.Empty; +} + +public sealed class SearchResponse(Guid correlationId) : Message(correlationId) +{ + public string Source { get; init; } = string.Empty; // which responder answered + public IReadOnlyList Hits { get; init; } = Array.Empty(); +} +``` + +A `Source` field on the reply is a convention worth borrowing — the requester gets a bag of replies back and has to attribute them somehow. A string tag is enough. + +## The requester + +Scatter-Gather uses `PublishRequestAsync`. The request travels through the request type's pub/sub exchange, so every service subscribed to `SearchRequest` receives a copy and can reply. A callback fires for each reply that arrives; the call completes when `ExpectedReplyCount` replies arrive or the timeout elapses: + +```csharp +// Requester/Program.cs +using ServiceConnect.Interfaces; +using ServiceConnect.Interfaces.Options; + +await bus.StartConsumingAsync(); // required — replies land on our queue + +var replies = new List(); +await bus.PublishRequestAsync( + new SearchRequest(Guid.NewGuid()) { Query = "widgets" }, + reply => { lock (replies) { replies.Add(reply); } }, + new RequestOptions + { + ExpectedReplyCount = 2, + Timeout = 30_000, + }); + +foreach (var reply in replies) + Console.WriteLine($"{reply.Source}: {reply.Hits.Count} hits"); +``` + +Three things to notice: + +- **No queue mapping required** — anybody subscribed to `SearchRequest` is automatically a responder. The requester doesn't list responder queues. +- **`onReply` callback** — replies are surfaced one at a time via the callback rather than returned as a list. Aggregate inside the callback if you need a list; the returned `Task` completes when `ExpectedReplyCount` arrives or the timeout elapses. +- **Callback exceptions are fatal** — an exception thrown from `onReply` faults the awaited task, closes the request, and silently drops subsequent matching replies. Wrap the body in `try/catch` if you want log-and-continue per-reply semantics. + +See `examples/ScatterGather` for this pattern in a runnable project. + +## The responders + +Each responder is a normal request/reply handler — identical to what you'd write for a single-responder request/reply: + +```csharp +// CatalogA/SearchRequestHandler.cs +public sealed class SearchRequestHandler : IMessageHandler +{ + public async Task HandleAsync(SearchRequest message, IConsumeContext context, CancellationToken cancellationToken = default) + { + var hits = await SearchAsync(message.Query); + await context.ReplyAsync(new SearchResponse(message.CorrelationId) + { + Source = "catalog-a", + Hits = hits, + }); + } + + private Task> SearchAsync(string q) => Task.FromResult>(Array.Empty()); +} +``` + +The responders don't know each other. They don't coordinate. Each one sees a `SearchRequest`, runs its own search, and replies. The requester is the only place that knows there are multiple responders. + +## Alternative — `SendRequestMultiAsync` to a known endpoint list + +When the set of responders is a fixed deployment concern — you know the queue names at startup and want the queue mapping to fail-fast if a name is misspelled — `SendRequestMultiAsync` lets you enumerate them explicitly. Register the request type against the responder queues and ServiceConnect fans the request out to all of them on every call. You receive an `IList`: + +```csharp +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(t => { /* … */ }); + builder.ConfigureQueues(q => + { + q.QueueName = "search-requester"; + q.AddQueueMapping(typeof(SearchRequest), new[] { "catalog-a", "catalog-b" }); + }); +}); + +var replies = await bus.SendRequestMultiAsync( + new SearchRequest(Guid.NewGuid()) { Query = "widgets" }, + new RequestOptions + { + ExpectedReplyCount = 2, + Timeout = 30_000, + }); + +foreach (var reply in replies) + Console.WriteLine($"{reply.Source}: {reply.Hits.Count} hits"); +``` + +Use `PublishRequestAsync` when responders are discovered dynamically and the requester should not hard-code the list. Use `SendRequestMultiAsync` when the responder set is stable and you want startup-time validation of queue names. The reply-count semantics described below apply to both methods. + +## Reply-count semantics + +`ExpectedReplyCount` is the knob that defines "done": + +- **Positive value N** — the call completes as soon as `N` replies have arrived. If fewer than `N` arrive before the timeout, `RequestTimeoutException` is thrown with the partials available on `PartialReplies`. +- **Zero, negative, or `null`** (default) — the call waits the full timeout and returns every reply received. Useful when you don't know how many responders are listening — say, the set of catalogs is dynamic. You accept a fixed wait in exchange for not having to count responders. + +## When a reply doesn't come back + +With `ExpectedReplyCount` unset, the response list comes back short, the call returns cleanly, and it is your job to decide what that means — "no results from catalog-b", a health alert, a fallback, nothing at all. The requester sees exactly the replies that arrived; the ones that didn't are simply absent. + +With a positive `ExpectedReplyCount`, under-delivery is a typed exception (`RequestTimeoutException`) carrying the partials, so you can choose to recover them or fail the whole call. + +If you need to log specifically *which* responders failed to reply, compare the `Source` tags on the replies to the queue-mapping list you configured. ServiceConnect doesn't surface this for you, and on purpose: the pattern's whole appeal is that the call site doesn't have to reason about per-responder failure. + +## What comes next + +- [Request/Reply](/ServiceConnect-CSharp/learn/messaging-patterns/request-reply/) — the single-responder variant this extends. +- [Pub/Sub](/ServiceConnect-CSharp/learn/messaging-patterns/pub-sub/) — when you want fan-out without needing replies. +- [Aggregator](/ServiceConnect-CSharp/learn/messaging-patterns/aggregator/) — when the collecting happens on the consumer side, not the sender's. diff --git a/website/src/content/docs/learn/messaging-patterns/streaming.mdx b/website/src/content/docs/learn/messaging-patterns/streaming.mdx new file mode 100644 index 000000000..b6374effd --- /dev/null +++ b/website/src/content/docs/learn/messaging-patterns/streaming.mdx @@ -0,0 +1,114 @@ +--- +title: Streaming +description: Send a payload too large for one message — chunked on the wire, reassembled on the receiver, one handler invocation at the end. +--- + +**Streaming** is for payloads that won't fit comfortably in a single message. Images, PDFs, logs, CSV exports. The sender splits the payload into packets and writes them through a stream handle; the bus delivers each packet on the transport; the receiver reassembles the bytes and invokes the handler exactly once, when the whole payload has arrived. + +This is the pattern for "the message is the bytes." When the payload is small enough to live in the message body, use normal send or publish. Streaming exists for the cases where that would be impractical. + +## When to use it + +- The payload is too big to carry in a single bus message (broker limits, memory pressure, serialiser cost). +- The receiver wants the whole payload as one blob, not as a stream of independent messages. +- You are willing to accept that the handler waits for the full transfer before starting. + +If the receiver can process packets as they arrive — say, a video consumer that renders frames — that is a different shape, and you should look at fan-out patterns instead. If the payload is small, don't reach for streaming; the overhead isn't worth it. + +## The message contract + +A streamed payload pairs a message with bytes. The message carries *metadata*; the bytes live on the stream: + +```csharp +// Contracts/DocumentUploaded.cs +using ServiceConnect.Interfaces; + +public sealed class DocumentUploaded(Guid correlationId) : Message(correlationId) +{ + public string FileName { get; init; } = string.Empty; + public int TotalBytes { get; init; } +} +``` + +The sender decides what goes on the message vs. the stream. The rule of thumb: anything the receiver needs to know *about* the payload — filename, size, content-type, trace id — goes on the message; the payload itself goes on the stream. + +## The sender + +`bus.CreateStream(endpoint)` opens a write stream pointed at a receiver queue. Write packets with `WriteAsync`, and call `CloseAsync` when done: + +```csharp +// Uploader/Program.cs +await using var stream = bus.CreateStream("document-receiver"); +for (int offset = 0; offset < payload.Length; offset += chunkSize) +{ + var count = Math.Min(chunkSize, payload.Length - offset); + await stream.WriteAsync(payload.AsMemory(offset, count)); +} +await stream.CloseAsync(); +``` + +Four things to notice: + +- **Chunking is your job.** The API takes a `ReadOnlyMemory`; slice a byte array with `.AsMemory(offset, count)` to write a sub-range. You decide how big each packet is. A few kilobytes to a few hundred kilobytes is typical — small enough to fit well inside broker limits, large enough that per-packet overhead doesn't dominate. +- **Close is not optional.** Until `CloseAsync` is called, the receiver does not know the stream is complete and the handler will not fire. The `await using` ensures disposal, but the explicit `CloseAsync` is what marks the final packet. +- **Each `WriteAsync` is one bus message.** The packet becomes an envelope on the wire. Ordering, at-least-once delivery, and backpressure all apply at the packet level; the bus reassembles them in order on the receiver. +- **The generic parameter names the control message type.** `bus.CreateStream(endpoint)` sends a control `DocumentUploaded` message that initiates the stream. The handler receives both the control message (the `TMessage` parameter in `IStreamHandler.ExecuteAsync`) and an `IMessageBusReadStream` for the reassembled bytes — they are separate: the control message carries metadata (filename, size, …) and the stream carries the payload. + +## The receiver + +A stream handler implements `IStreamHandler`. It's slightly different in shape from a normal `IMessageHandler`: + +```csharp +// Receiver/DocumentUploadedHandler.cs +public sealed class DocumentUploadedHandler : IStreamHandler +{ + public async Task ExecuteAsync( + DocumentUploaded message, + IMessageBusReadStream stream, + CancellationToken cancellationToken = default) + { + var bytes = stream.Read(); + await File.WriteAllBytesAsync(message.FileName, bytes, cancellationToken); + } +} +``` + +- **`stream` is a parameter, not a property.** The dispatcher hands the reassembled stream to `ExecuteAsync` directly — there is no ambient property the framework writes between dispatches, so singleton-registered handlers stay thread-safe. +- **`ExecuteAsync` lets you await the full reassembled stream.** By the time it is called, every packet has arrived and been reassembled in memory; the I/O-bound wait for the wire is over. The supplied `CancellationToken` flows through from the dispatcher, so long writes to disk or downstream services can be cancelled — but *don't* make that work slow, because it serialises against the next stream's reassembly. +- **`stream.Read()` returns the whole byte array.** The reassembly is complete by the time the handler fires; no packet-by-packet processing is expected. `stream.Read()` throws `InvalidOperationException` if the assembled stream has a missing packet — a gap in the sequence indicates incomplete delivery and the handler should not silently process truncated output. `stream.ReadSequence()` returns the same assembled data as a `ReadOnlySequence`, which avoids the extra `MemoryStream`+`ToArray()` copy that `Read()` produces; it does **not** reduce peak memory, because all packets are already fully resident before the handler fires. To limit peak memory, configure `IBusConfiguration.MaxStreamSizeBytes`. + +Register the handler the same way you register any consumer — a `HandlerReference` and a DI registration — except the interface is `IStreamHandler`: + +```csharp +// Receiver/Program.cs +services.AddSingleton>(new List +{ + new() { HandlerType = typeof(DocumentUploadedHandler), MessageType = typeof(DocumentUploaded) }, +}); +services.AddTransient, DocumentUploadedHandler>(); + +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(t => { t.Host = "localhost"; }); + builder.ConfigureQueues(q => q.QueueName = "document-receiver"); +}); +``` + +## The cost model + +Streaming is not free. Each packet is a transport message — RabbitMQ allocates, routes, and acknowledges it. A 50 MB payload at 64 KB packets is ~800 transport messages. At 1 MB packets it is 50. The broker is happier with fewer larger packets, up to the point where a single message becomes uncomfortable for other reasons (memory pressure on the broker, redelivery cost if a packet fails). + +The receiver reassembles in memory. A 5 GB payload will hold 5 GB in the receiver's heap until `ExecuteAsync` returns. If that is not acceptable, chunking the *semantics* (many small `DocumentChunkUploaded` messages with sequence numbers) is the right move, not streaming. + +The receiver caps the cumulative byte count per stream to defend against hostile or buggy producers that never close their stream. The ceiling is configurable via `IBusConfiguration.MaxStreamSizeBytes` and defaults to **100 MB**; a stream that exceeds it terminates with `InvalidOperationException` on the **consumer-side** packet reassembly (so the failing handler dispatch surfaces it; the sender's `IMessageBusWriteStream.WriteAsync` returns successfully on each frame and does not see the cap violation directly). Raise this for legitimate large-artefact workloads (file uploads, ML model weights); lower it to harden memory-constrained hosts. [`IBusConfiguration` reference](/ServiceConnect-CSharp/reference/bus/ibusconfiguration/#maxstreamsizebytes). + +## Reference + +- [`IStreamHandler`](/ServiceConnect-CSharp/reference/handlers/istreamhandler/) — streaming consumer contract +- [`IBus.CreateStream`](/ServiceConnect-CSharp/reference/bus/ibus/#createstreamt) — streaming producer entry point + +## What comes next + +- [Point-to-Point](/ServiceConnect-CSharp/learn/messaging-patterns/point-to-point/) — the normal "one message to one queue" model streaming builds on. +- [Messages](/ServiceConnect-CSharp/learn/core-concepts/messages/) — the message-vs-body distinction; streaming is where that distinction matters most. +- [Handlers](/ServiceConnect-CSharp/learn/core-concepts/handlers/) — `IStreamHandler` lives alongside `IMessageHandler` and shares the same lifetime rules. diff --git a/website/src/content/docs/learn/operations/cancellation.mdx b/website/src/content/docs/learn/operations/cancellation.mdx new file mode 100644 index 000000000..e0534bdcf --- /dev/null +++ b/website/src/content/docs/learn/operations/cancellation.mdx @@ -0,0 +1,139 @@ +--- +title: Cancellation +description: How ServiceConnect handles graceful shutdown and the cancellation contract for filter / middleware authors. +--- + +import { Aside } from '@astrojs/starlight/components'; + +ServiceConnect honours the host's shutdown token end-to-end. When `IHostApplicationLifetime` signals shutdown, the consumer host stops admitting new deliveries, waits for in-flight handlers to complete, and propagates the cancellation token to every async boundary inside the dispatch pipeline. + +## What the bus promises + +- The handler's `CancellationToken` flows from the consumer host's lifecycle. When shutdown begins, the dispatcher rethrows `OperationCanceledException` from the catch path; the broker leaves the message unacked for redelivery on the next start. +- When a handler throws both a non-OCE failure and an `OperationCanceledException` for the cancelled dispatch `CancellationToken`, the framework surfaces the OCE directly — it does **not** wrap it into `AggregateException`. Callers that previously caught `AggregateException` and unwrapped to detect cancellation must now catch `OperationCanceledException` first. +- After-consuming filters still run in the dispatcher's `finally` block on every path — even when the handler threw OCE during shutdown. +- Audit publishes and telemetry header injection are fire-and-forget — they don't block shutdown and don't surface OCE as application errors. + +## What your code must do + +Three rules: + +### 1. Token propagation + +Methods that accept a `CancellationToken cancellationToken` parameter must propagate it to every transitively-awaited call inside the method body. No `default`. No parameterless overloads. + +```csharp +// ❌ Wrong — drops the token on the downstream await. +public async Task HandleAsync(MyMessage msg, CancellationToken cancellationToken = default) +{ + await _http.GetAsync("https://api.example.com/data"); // No token! +} + +// ✅ Correct — forwards the token. +public async Task HandleAsync(MyMessage msg, CancellationToken cancellationToken = default) +{ + await _http.GetAsync("https://api.example.com/data", cancellationToken); +} +``` + +### 2. OCE filter discipline + +Catch blocks that wrap a cancellable operation must include an OCE filter ahead of any generic `catch (Exception)`: + +```csharp +// ❌ Wrong — turns shutdown into an application error. +public async Task ProcessAsync(Envelope envelope, CancellationToken cancellationToken = default) +{ + try + { + await DoSomethingAsync(cancellationToken); + return FilterAction.Continue; + } + catch (Exception ex) + { + _logger.LogError(ex, "Filter failed"); + return FilterAction.Stop; + } +} + +// ✅ Correct — shutdown propagates; application errors are caught. +public async Task ProcessAsync(Envelope envelope, CancellationToken cancellationToken = default) +{ + try + { + await DoSomethingAsync(cancellationToken); + return FilterAction.Continue; + } + catch (OperationCanceledException) when (cancellationToken.IsCancellationRequested) + { + throw; + } + catch (Exception ex) + { + _logger.LogError(ex, "Filter failed"); + return FilterAction.Stop; + } +} +``` + +### 3. Fire-and-forget cleanup whitelist + +Dispose / teardown paths and observability publishes (`DisposeAsync`, `CloseAsync` of resources we're tearing down, audit publish, telemetry inject) are deliberately fire-and-forget. They may accept a cancellation token to honour a cooperative-shutdown deadline (so they can't block shutdown indefinitely), but they do NOT surface OCE as application errors — an OCE during these paths is swallowed (logged Debug) so the surrounding work can complete its normal flow. Cancellation cannot be used to abort one of these paths and short-circuit subsequent work. + +OCE handlers in these paths log at Debug, not Error — an OCE is expected in this regime, not an error. + +The bus's whitelist (you don't extend this in your own code): + +- `IBus.DisposeAsync` and the consumer/producer disposal cascade. +- Audit publish (handler succeeded; audit is observability metadata). +- Telemetry trace-context injection. + +If you find yourself wanting a similar fire-and-forget block in your own code, your code probably has a cancellation bug. + +## Worked example: middleware + +```csharp +public sealed class MyMiddleware : IMessageProcessingMiddleware +{ + public async Task ProcessAsync( + ReadOnlyMemory messageBytes, + Type messageType, + object message, + IDictionary headers, + Envelope envelope, + MessageProcessingDelegate next, + CancellationToken cancellationToken) + { + try + { + // Pre-handler work uses the token. + await BeforeAsync(message, cancellationToken); + + // Forward the token to next. + var result = await next(messageBytes, messageType, message, headers, envelope, cancellationToken); + + // Post-handler work uses the token. + await AfterAsync(result, cancellationToken); + + return result; + } + catch (OperationCanceledException) when (cancellationToken.IsCancellationRequested) + { + // Cooperative shutdown — propagate so the dispatcher's outer finally still runs + // AfterConsumingFilters but the message stays unacked for redelivery. + throw; + } + catch (Exception ex) + { + _logger.LogError(ex, "Middleware failed"); + throw; + } + } +} +``` + +## See also + +- [`IFilter`](/ServiceConnect-CSharp/reference/filters/ifilter/) — pipeline contract. +- [`IMessageProcessingMiddleware`](/ServiceConnect-CSharp/reference/filters/imessageprocessingmiddleware/) — handler-wrapping middleware contract. +- [Hosting & Lifecycle](/ServiceConnect-CSharp/learn/operations/hosting/) — how the host coordinates shutdown. diff --git a/website/src/content/docs/learn/operations/clustering.mdx b/website/src/content/docs/learn/operations/clustering.mdx new file mode 100644 index 000000000..bc5302dc8 --- /dev/null +++ b/website/src/content/docs/learn/operations/clustering.mdx @@ -0,0 +1,143 @@ +--- +title: Clustering & Quorum Queues +description: Connecting ServiceConnect to a RabbitMQ cluster — host-list format, failover behaviour, and how to declare quorum queues for replicated durability. +--- + +import { Aside } from '@astrojs/starlight/components'; + +ServiceConnect connects to a RabbitMQ cluster the same way it connects to a single broker — you list multiple hosts on `Transport.Host` and the RabbitMQ.Client library handles failover. Replicated queue durability is a separate, orthogonal concern: opt into [quorum queues](https://www.rabbitmq.com/docs/quorum-queues) by passing `x-queue-type: quorum` through the transport's queue-argument dictionaries. This page covers both. + +## Connecting to a cluster + +Pass a comma-separated list of broker hostnames as `Host`: + +```csharp +builder.UseRabbitMQ(transport => +{ + transport.Host = "rabbit-a,rabbit-b,rabbit-c"; + transport.Username = "service-connect"; + transport.Password = Environment.GetEnvironmentVariable("RMQ_PASSWORD"); + transport.VirtualHost = "/production"; +}); +``` + +The string is split on `,` and the resulting hostnames are passed to `ConnectionFactory.CreateConnectionAsync` as a hostname array. RabbitMQ.Client tries each entry in order on initial connect and on automatic recovery, so a downed node is transparent to the application provided at least one entry resolves. + +### Host-list format + +A few things to know about the parser: + +- The string is split on `,` and **whitespace is preserved** — `"rabbit-a, rabbit-b"` becomes `["rabbit-a", " rabbit-b"]` and DNS resolution of the second entry will fail. Either omit spaces or trim them yourself before assigning. +- **Per-host ports are not supported.** Every entry uses the same port resolved from `SetClientSetting("Port", ...)` (or the AMQP/AMQPS default). If your nodes listen on different ports, front them with a load balancer or DNS so they share one port externally. +- **TLS is per-connection, not per-host.** `SslEnabled`, `ServerName`, `CertPath`, and friends apply to whichever node the client picks. For mTLS deployments, your broker nodes must present certificates valid for the configured `ServerName` (or for each hostname in the list when no override is set). + +### Failover behaviour + +Connection recovery is on by default in RabbitMQ.Client and ServiceConnect relies on it. When a broker node drops the connection: + +1. RabbitMQ.Client raises `ConnectionShutdown`. ServiceConnect logs event `ConnectionLost` at Information — broker-initiated shutdowns are normal operational events, not warnings. +2. The client begins automatic recovery, walking the hostname list until one accepts. +3. Once reconnected, `TopologyRecoveryEnabled = true` replays exchanges, queues, and bindings on the new channel. ServiceConnect logs event `ConnectionRecovered`. +4. Consumer subscriptions are restored; in-flight messages that were unacked at the time of the drop will be redelivered by the new node. + +See the [connection-lifecycle log table](/ServiceConnect-CSharp/learn/operations/observability/#connection-lifecycle-logs) for every event the client emits during recovery, and the [observability](/ServiceConnect-CSharp/learn/operations/observability/) page generally for the `server.address` span attribute, which carries the broker node a publish or consume actually landed on. + + + +### Tuning recovery + +Two transport knobs govern recovery behaviour: + +| Setting | Default | Notes | +|---|---|---| +| `NetworkRecoveryInterval` | RabbitMQ.Client default (5s) | Time between recovery attempts. Lower for tight failover windows; raise to avoid hammering a broker that's mid-restart. | +| `HeartbeatTime` | 120s | AMQP heartbeat interval. Disabling heartbeats (`HeartbeatEnabled = false`) removes broker-side dead-peer detection and is rarely what you want in a clustered deployment. | + +Both are set via the `UseRabbitMQ(opts => ...)` typed options surface — see [RabbitMqOptions](https://github.com/R-Suite/ServiceConnect-CSharp/blob/master/src/ServiceConnect.Client.RabbitMQ/Configuration/RabbitMqOptions.cs) for the full set. + +## Quorum queues + +A clustered broker does not automatically give you replicated queues. By default, ServiceConnect declares **classic** queues, which live on a single node — if that node dies, messages on the queue are unavailable until it recovers. For replicated durability you need [quorum queues](https://www.rabbitmq.com/docs/quorum-queues), which the broker replicates across a Raft group of nodes. + +Opt in by passing `x-queue-type: quorum` through the transport's three argument dictionaries — one per queue family (main, retry, utility): + +```csharp +builder.UseRabbitMQ(opts => +{ + var quorumArgs = new Dictionary + { + ["x-queue-type"] = "quorum", + ["x-delivery-limit"] = 5, // poison-message safety net + ["x-quorum-initial-group-size"] = 3, // replicas at declare time + }; + + opts.Arguments = quorumArgs; // primary consumer queue + opts.RetryQueueArguments = quorumArgs; // .Retries queue + opts.UtilityQueueArguments = quorumArgs; // error + audit queues +}) +// Host is a transport-connection setting, not a RabbitMqOptions value — set it via ConfigureTransport. +.ConfigureTransport(t => t.Host = "rabbit-a,rabbit-b,rabbit-c"); +``` + +ServiceConnect's queue declarations already meet the quorum-queue constraints — queues are declared `durable: true, exclusive: false, autoDelete: false`, and the framework does not set any of the classic-only arguments (`x-max-priority`, `x-queue-mode: lazy`) that would conflict. The retry-queue topology, which sets `x-dead-letter-exchange` and `x-message-ttl` internally, is fully compatible with quorum queues; your arguments are merged with the framework's, not replaced. + +### Common arguments + +The arguments dictionaries are pass-through to RabbitMQ — anything the broker accepts is allowed. The most useful ones for quorum queues: + +| Argument | Purpose | +|---|---| +| `x-queue-type` | Set to `"quorum"` (or `"stream"` for stream queues — outside the scope of this page). | +| `x-delivery-limit` | Maximum redelivery attempts before the broker drops the message to the configured DLX. Acts as a poison-message guard distinct from ServiceConnect's `MaxRetries`. | +| `x-quorum-initial-group-size` | Number of replicas the queue starts with. Should not exceed your cluster size. | +| `x-max-in-memory-length` | Cap on messages held in RAM before spillover to disk-only reads. | +| `x-overflow` | `"reject-publish"` returns a publisher nack when the queue is full — pairs well with publisher confirms (on by default in ServiceConnect). | + +See the [RabbitMQ quorum-queue reference](https://www.rabbitmq.com/docs/quorum-queues#configuration) for the full list. + +### Trade-offs vs classic queues + +Quorum queues are not a free upgrade. The trade-offs worth knowing: + +- **Throughput.** Replication adds latency and consumes more cluster bandwidth. Expect lower peak throughput than a classic queue on identical hardware. +- **Memory profile.** Quorum queues keep an in-memory tail; very long queues are more memory-hungry than lazy classic queues. +- **Not all classic features are supported.** Priorities (`x-max-priority`), per-queue TTL on the queue itself (message TTL is fine), and queue exclusivity don't apply. ServiceConnect doesn't use any of these internally. +- **Cluster size matters.** A quorum queue with three replicas needs at least three running nodes to accept writes. Single-node dev clusters work fine for testing — set `x-quorum-initial-group-size = 1` — but production should run an odd cluster size of three or five. + +For workloads where throughput dominates and a brief outage is acceptable, classic queues remain the right choice. For workloads where message loss on node failure is unacceptable — orders, payments, anything that triggers a downstream side-effect — quorum queues are worth the throughput cost. + +## Putting it together + +A typical production transport configuration against a three-node cluster: + +```csharp +builder.UseRabbitMQ(opts => +{ + opts.Port = 5671; // AMQPS + opts.PrefetchCount = 50; + opts.NetworkRecoveryInterval = TimeSpan.FromSeconds(5); + + var quorumArgs = new Dictionary + { + ["x-queue-type"] = "quorum", + ["x-delivery-limit"] = 5, + ["x-overflow"] = "reject-publish", + }; + opts.Arguments = quorumArgs; + opts.RetryQueueArguments = quorumArgs; + opts.UtilityQueueArguments = quorumArgs; +}) +.ConfigureTransport(t => +{ + t.Host = "rabbit-a.prod.example.com,rabbit-b.prod.example.com,rabbit-c.prod.example.com"; + t.Username = "orders-service"; + t.Password = Environment.GetEnvironmentVariable("RMQ_PASSWORD"); + t.VirtualHost = "/production"; + t.MaxRetries = 3; + t.GracefulShutdownTimeoutMilliseconds = 30_000; +}); +``` + +The host list is the failover frontier; the argument dictionaries are the durability frontier. Set both for a production deployment against a real cluster — they're independent and you need both. diff --git a/website/src/content/docs/learn/operations/configuration.mdx b/website/src/content/docs/learn/operations/configuration.mdx new file mode 100644 index 000000000..bed566bd4 --- /dev/null +++ b/website/src/content/docs/learn/operations/configuration.mdx @@ -0,0 +1,245 @@ +--- +title: Configuration +description: The ServiceConnect builder's configuration surface — the transport, queues, persistence, and bus callbacks plus the pipeline helpers — and what each one controls. +--- + +ServiceConnect is configured through a single builder on the service collection. Every production setting — connection, retries, queue names, TLS, filters, handler scanning — lives under one of four `Configure*` callbacks plus typed pipeline-builder helpers. This page is the map. + +```csharp +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(transport => { /* transport */ }); + builder.ConfigureQueues(queues => { /* queues */ }); + builder.ConfigurePersistence(p => { /* persistence */ }); + builder.ConfigureBus(bus => { /* runtime behaviour */ }); + + // Filters and middleware register via typed builder methods, not a single + // ConfigurePipeline callback. See the "Pipeline filters and middleware" section + // below for the full list. + builder.AddBeforeConsumingFilter(); +}); +``` + +Each `Configure*` callback mutates an options object. You never construct the configuration yourself — the builder hands you the live instance to edit. + +## Transport + +`ConfigureTransport` (or the `UseRabbitMQ` shortcut, which wraps it) sets everything about the connection to the broker. + +```csharp +builder.UseRabbitMQ(transport => +{ + transport.Host = "rabbit.prod.example.com"; + transport.Username = "service-connect"; + transport.Password = Environment.GetEnvironmentVariable("RMQ_PASSWORD"); + transport.VirtualHost = "/production"; + + transport.MaxRetries = 3; + transport.RetryDelay = 3_000; // ms between retries + transport.PrefetchCount = 50; // unacked messages per consumer + transport.GracefulShutdownTimeoutMilliseconds = 30_000; // default is 5,000 ms +}); +``` + +The essentials: `Host` is required — a single hostname or a comma-separated list for clustered brokers. `Username`/`Password`/`VirtualHost` are optional and default to the broker's guest settings. + +For multi-node clusters — host-list parsing rules, failover behaviour, and how to declare replicated quorum queues — see [Clustering & Quorum Queues](/ServiceConnect-CSharp/learn/operations/clustering/). + +Retry knobs drive the error-handling pipeline — see [Error Handling](/ServiceConnect-CSharp/learn/operations/error-handling/) for what happens after `MaxRetries` is exhausted. + +### TLS + +TLS is enabled by default — `SslEnabled` defaults to `true`, and ServiceConnect connects on the default AMQPS port (5671). For production deployments connecting to a broker with TLS configured, no transport setup is required beyond `Host` and credentials. + +For brokers behind TLS with custom server names or client certificates: + +```csharp +transport.SslEnabled = true; // (default) +transport.ServerName = "rabbit.prod.example.com"; +transport.CertPath = "/etc/ssl/client.pfx"; +transport.CertPassphrase = Environment.GetEnvironmentVariable("CLIENT_CERT_PASSPHRASE"); +``` + +Client certs can also be supplied in memory via `Certs`, or selected dynamically via `CertificateSelectionCallback`. For broker chains that don't validate cleanly, `AcceptablePolicyErrors` lets you widen acceptance — use sparingly, and never `SslPolicyErrors.RemoteCertificateNameMismatch` in production. + +#### Connecting to a plaintext broker (local dev) + +If your broker runs without TLS — typically the official `rabbitmq:3-management` Docker image on port 5672 — set `SslEnabled = false`: + +```csharp +transport.SslEnabled = false; // local-dev plaintext; production must use TLS +``` + +ServiceConnect logs a `Warning`-level message under the `ServiceConnect` category when plaintext is configured against a non-loopback host. To silence the warning in environments where plaintext is intentional (e.g. an isolated VPC, Docker Compose network, internal LAN), set `SuppressPlaintextWarning = true` on the transport configuration — this is the supported mechanism. Adjusting the log-level filter is a secondary option but does not signal intent to the framework. + +### Provider-specific settings + +Anything RabbitMQ-specific that isn't on the interface — connection timeout, heartbeat, socket options — goes through `SetClientSetting`: + +```csharp +transport.SetClientSetting("Port", 5671); +transport.SetClientSetting("HeartbeatTime", (ushort)30); // heartbeat interval, in seconds +// PublisherAcknowledgements defaults to true; PublishTimeout to 30s. +// See the reference for opting out (rare; rejected if combined with a finite timeout). +``` + +The keys are passed through to the RabbitMQ client; see that client's documentation for the full list. + +#### Typed RabbitMQ options overload + +A typed `Action` overload of `UseRabbitMQ` is available when you prefer named properties over string-keyed settings: + +```csharp +builder.UseRabbitMQ(transport => +{ + transport.Host = "rabbit.prod.example.com"; + transport.Username = "user"; + transport.Password = "pass"; + transport.VirtualHost = "/vhost"; + transport.SslEnabled = true; +}); +builder.UseRabbitMQ(opts => +{ + opts.PrefetchCount = 25; + opts.HeartbeatTime = 30; + opts.PublishTimeout = TimeSpan.FromSeconds(10); + opts.MaxHeaderCount = 128; + opts.MaxHeaderValueBytes = 16 * 1024; +}); +``` + +The typed overload is equivalent to `SetClientSetting` — internally the option values are written back into `ClientSettings` — so the two forms are interchangeable. Use whichever reads more clearly for your project's configuration style. + +- **`PublishTimeout`** (default **30 seconds**) — time to wait for a broker publisher-confirm before failing a publish. Prevents a half-open connection from blocking a producer indefinitely. `TimeoutException` on this path is *not* retried. +- **`MaxHeaderCount`** (default **64**) — maximum number of headers allowed on an inbound message. Raise when producers stamp wide header sets (heavy distributed-tracing baggage); lower to harden against hostile inputs. Inbound messages above the cap are rejected to the error queue rather than retried. +- **`MaxHeaderValueBytes`** (default **8192**) — maximum bytes per individual header value on an inbound message. Raise for large correlation / tracing payloads; lower to harden against hostile inputs. + +### Producer concurrency invariants + +Adapter authors studying the bundled RabbitMQ producer as reference will see two synchronisation primitives with distinct, non-overlapping responsibilities: + +- **`_publishLock`** (a `SemaphoreSlim(1, 1)` on `Producer`) gates the actual publish step: building the `BasicProperties`, the `BasicPublishAsync` call, and the publisher-confirms wait. Each retry attempt acquires the lock, performs one publish, releases the lock. The lock is **never** held across `EnsureConnectedAsync`, the inter-attempt delay, or any reconnect — those run outside, so a slow reconnect cannot block other publishers. +- **`_connectionSemaphore`** (a `SemaphoreSlim(1, 1)` on `ProducerConnection`) gates the connection lifecycle: build, teardown, dispose. It is held for the duration of `EnsureConnectedAsync`'s reset-and-recreate path so that a concurrent peeker cannot observe a half-open window between teardown and reconnect. + +Custom transports do not need to mirror this layout exactly — the goal is correctness against the contracts the bus expects (publish completes only after broker durability; dispose terminates promptly; concurrent publishers do not deadlock on a slow reconnect). The two-semaphore split is one way to satisfy those contracts cleanly. + +## Queues + +`ConfigureQueues` sets the queue names the bus uses and any explicit message-to-queue routing. + +```csharp +builder.ConfigureQueues(queues => +{ + queues.QueueName = "orders-service"; + queues.ErrorQueueName = "orders-service.errors"; + queues.AuditQueueName = "orders-service.audit"; + queues.AuditingEnabled = true; + queues.DisableErrors = false; + queues.PurgeQueueOnStartup = false; + + queues.AddQueueMapping(typeof(ShipOrder), "shipping-service"); +}); +``` + +The main setting is `QueueName`. `ErrorQueueName` and `AuditQueueName` have fixed defaults (`errors` and `audit`) that do not derive from `QueueName`, so set them explicitly to namespace them under your service name. `PurgeQueueOnStartup` is a development-only knob; leave it `false` in anything you care about. + +Queue mappings are the static routing table: "when the bus sees a `ShipOrder`, send it to `shipping-service`." See [Endpoints](/ServiceConnect-CSharp/learn/core-concepts/endpoints/) for how this plays against per-call `SendOptions.EndPoint`. + +## Persistence + +`ConfigurePersistence` — or one of the `Use*Persistence` extension methods — sets the store used for process-manager state, aggregator buffers, and timeout storage: + +```csharp +builder.UseMongoDbPersistence(options => +{ + options.ConnectionString = "mongodb://mongo:27017"; + options.DatabaseName = "service-connect-state"; +}); +``` + +There's also an in-memory provider (`UseInMemoryPersistence`) useful for tests and short-lived workflows. If your bus never uses a process manager, aggregator, or timeout, you can omit persistence entirely — the bus will fail fast if you later try to use one without it. + +## Pipeline filters and middleware + +Filters and middleware are registered via typed builder methods — one per stage and registration shape: + +```csharp +// Filters (run before / after handler dispatch). +builder.AddOutgoingFilter(); +builder.AddBeforeConsumingFilter(); +builder.AddOnConsumedSuccessfullyFilter(); +builder.AddAfterConsumingFilter(); + +// Middleware (wraps the send or processing call site). +builder.AddSendMessageMiddleware(); +builder.AddMessageProcessingMiddleware(); + +// Outermost-position middleware (runs first on the way out, last on the way back). +// Useful for tracing / metrics middleware that must bracket every other layer. +// De-duplicates by type — a repeat call with the same T is a no-op. +builder.InsertSendMessageMiddlewareOutermost(); +builder.InsertMessageProcessingMiddlewareOutermost(); +``` + +There is no public `ConfigurePipeline` callback; the typed builder methods are the supported surface. Each `Add*` call appends to its stage's middleware/filter list; each `Insert*Outermost` call prepends with type-dedup. Order matters within a stage — the first `Add*` call runs first. + +The full shape of filters, what they can do, and when to prefer middleware is [Filters](/ServiceConnect-CSharp/learn/messaging-patterns/filters/). + +## Bus runtime behaviour + +`ConfigureBus` is the catch-all for runtime behaviour that doesn't fit the other four: + +```csharp +builder.ConfigureBus(bus => +{ + bus.ScanForMessageHandlers = false; // prefer explicit HandlerReference lists + bus.AutoStartConsuming = true; // start when the host starts + bus.ConsumerCount = 4; // parallel consumer loops + + bus.EnableProcessManagerTimeouts = true; + bus.ProcessManagerTimeoutPollInterval = TimeSpan.FromSeconds(10); // default is 30 s + + bus.EnableRoutingSlipProcessing = true; // default; set false to ignore slips + bus.ValidateReplyDestinations = true; // default; guard against unknown reply queues + + bus.IncludeMachineNameInHeaders = false; // default; opt in only when safe + bus.MaxInflightRequests = 25_000; // raise for high-concurrency request fans + bus.MaxStreamSizeBytes = 500L * 1024 * 1024; // 500 MB for large file streams + bus.MaxActiveStreams = 5_000; // raise for high-concurrency file transfers + bus.ExceptionHandler = (ex, _) => { _metrics.RecordHandlerFailure(ex); return ValueTask.CompletedTask; }; +}); +``` + +A few worth a note: + +- **`ScanForMessageHandlers`** — when `true`, loaded assemblies are scanned for `IMessageHandler` implementations. Deterministic, testable code sets this `false` and registers handlers explicitly via `IReadOnlyList` ([Handlers](/ServiceConnect-CSharp/learn/core-concepts/handlers/)). +- **`AutoStartConsuming`** — when `true`, the bus starts consuming when the host starts; when `false`, you call `bus.StartConsumingAsync()` yourself. [Hosting & Lifecycle](/ServiceConnect-CSharp/learn/operations/hosting/) covers the trade-off. +- **`ConsumerCount`** — how many parallel dispatch loops the bus runs. See [Competing Consumers](/ServiceConnect-CSharp/learn/messaging-patterns/competing-consumers/) for when to raise it. +- **`IncludeMachineNameInHeaders`** — adds `SourceMachine`/`DestinationMachine` headers. Off by default because the hostname leak is a problem in shared-broker deployments. +- **`MaxInflightRequests`** (default **10,000**) — caps concurrent `SendRequestAsync` / `SendRequestMultiAsync` exchanges. Each pending request pins a timer + TCS + cancellation registration; the cap defends against `Timeout.Infinite` leaks and unawaited request loops. Raise for genuine high-concurrency request fans; lower to harden against caller bugs. +- **`MaxStreamSizeBytes`** (default **100 MB**) — maximum bytes a single inbound stream may reassemble. `MessageBusReadStream.Write` throws `InvalidOperationException` if exceeded. Raise for file-upload or large-artefact workloads; lower to harden memory-constrained hosts. +- **`MaxActiveStreams`** (default **1,000**) — maximum concurrent partial inbound streams. Defends against DoS via stream-slot exhaustion. Raise for high-concurrency file transfers; lower to harden memory-constrained hosts. + +## Configuration is immutable after build + +`BusConfiguration` and all four sub-configurations (`Transport`, `Queues`, `Persistence`, `Pipeline`) are frozen at the end of `AddServiceConnect`. Any setter mutation on these objects after that point throws `InvalidOperationException`. This includes resolving `ITransportConfiguration` from DI and mutating it — a pattern that was previously silently accepted. Treat the configuration objects as sealed once the service provider is built. + +## Validation is at startup, not runtime + +The builder validates as you go: a missing `Host`, a negative `RetryDelay` or `MaxRetries` (validated at both the setter and the builder), an empty or whitespace-only `QueueName` — any of these throw `InvalidOperationException` when `AddServiceConnect` runs. That is by design; configuration errors should fail the process at startup, not surface as confusing broker errors hours later. + +If you're writing a config file or a builder helper, structure it so every required setting runs through `ConfigureTransport`, `ConfigureQueues`, and so on — not through field assignment on a bare options object. That's what gets you the validation. + +## Reference + +- [`IBusConfiguration`](/ServiceConnect-CSharp/reference/bus/ibusconfiguration/) — the configure delegate target +- [`ITransportConfiguration`](/ServiceConnect-CSharp/reference/configuration/itransportconfiguration/) — transport-level config +- [`IQueueConfiguration`](/ServiceConnect-CSharp/reference/configuration/iqueueconfiguration/) — per-queue config +- [`IPersistenceConfiguration`](/ServiceConnect-CSharp/reference/configuration/ipersistenceconfiguration/) — persistence provider selection +- [`IPipelineConfiguration`](/ServiceConnect-CSharp/reference/configuration/ipipelineconfiguration/) — pipeline wiring + +## What comes next + +- [Hosting & Lifecycle](/ServiceConnect-CSharp/learn/operations/hosting/) — `AutoStartConsuming`, `BusHostedService`, manual control. +- [Error Handling](/ServiceConnect-CSharp/learn/operations/error-handling/) — what retries and the error queue actually do. +- [Observability](/ServiceConnect-CSharp/learn/operations/observability/) — auditing, logging, tracing. diff --git a/website/src/content/docs/learn/operations/error-handling.mdx b/website/src/content/docs/learn/operations/error-handling.mdx new file mode 100644 index 000000000..3873cccd7 --- /dev/null +++ b/website/src/content/docs/learn/operations/error-handling.mdx @@ -0,0 +1,188 @@ +--- +title: Error Handling +description: What happens when a handler throws — retries, the error queue, headers that tell you what went wrong, and when to replay. +--- + +import { Aside } from '@astrojs/starlight/components'; + +A handler throws. What happens next is the most important operational contract a messaging library offers. ServiceConnect's answer is the same shape RabbitMQ's users will expect: a bounded retry loop, then a dead-letter queue, with enough metadata on the rejected message to diagnose and replay. + +## The failure path + +When `HandleAsync` throws, the consumer inspects a `RetryCount` header on the delivery: + +- If `RetryCount < MaxRetries`, the message is republished to a dedicated **retry queue** (`.Retries`) with `RetryCount` incremented. That queue has a per-message TTL of `RetryDelay` milliseconds — when the TTL fires, RabbitMQ dead-letters the message back into the main queue, where the consumer picks it up again. +- If `RetryCount >= MaxRetries`, the message is published to the **error queue** (`ErrorQueueName`, default `"errors"`) with an `Exception` header stamped on. It is not redelivered automatically. + +### Retry topology invariant: the DLX outlives the consumer + +The retry dead-letter exchange is always declared with `autoDelete: false`, even when the main consumer queue is auto-deleted. This guarantees that messages dwelling in the retry queue have somewhere to land when their TTL expires — without this invariant, retried messages would be silently dropped after a consumer disconnects. + +### Customising the retry queue: framework-wins on two keys + +The retry queue itself can be tuned via `RabbitMQSettingKeys.RetryQueueArguments` — for example, capping retry depth with `x-max-length` or switching to `x-queue-mode: lazy` for memory-bound brokers: + +```csharp +transport.SetClientSetting( + RabbitMQSettingKeys.RetryQueueArguments, + new Dictionary + { + ["x-max-length"] = 10_000, + ["x-queue-mode"] = "lazy", + }); +``` + +ServiceConnect manages two retry-queue AMQP arguments authoritatively: `x-dead-letter-exchange` and `x-message-ttl`. If the supplied dictionary includes either key, the caller-supplied value is overridden with the framework value at provisioning time and a Debug log records the override. Other `x-*` arguments flow through unchanged. + +`MaxRetries` and `RetryDelay` live on the transport configuration: + +```csharp +builder.UseRabbitMQ(transport => +{ + transport.MaxRetries = 3; // default 3 + transport.RetryDelay = 3_000; // ms; default 3000 +}); +``` + +Tuning hint: `MaxRetries * RetryDelay` is the *minimum* time a bad message blocks the queue head from progressing. Three retries at three seconds apart is fine for transient faults. If your handler's transient-failure mode is slow (a downstream RPC with a 30-second timeout, say), either raise `PrefetchCount` so the queue drains in parallel or accept that a burst of failures will slow the queue. + +## The error queue + +When retries are exhausted, the message lands in the error queue unchanged except for two header additions: + +- **`RetryCount`** — the number of attempts that were made (always equal to `MaxRetries` for messages that got here through exhaustion). +- **`Exception`** — a JSON-serialised object: + ```json + { "TimeStamp": "2026-04-20T12:34:56Z", "ExceptionType": "System.InvalidOperationException", "Message": "Widget not found: W-001" } + ``` + +Only the exception **type name and message** are stored. Stack traces are deliberately not serialised to the error queue — they are unbounded, sometimes sensitive, and already in your logs keyed to the same `MessageId`. Correlate the two via `MessageId` when triaging. + +The `Exception` header always identifies the **handler** failure that caused the message to enter retry — not any retry-publish or fallback-publish exception that may have occurred during error routing. If a retry-publish itself fails, that failure is logged separately and counted on `messaging.serviceconnect.retry.drops`; the original handler exception remains on the DLQ entry. + +The error queue is a normal RabbitMQ queue. You are not expected to consume it programmatically; it is an operator dashboard — `rabbitmqadmin get queue=errors`, a UI, a scheduled drain, a manual replay. Replay is: pull the message, fix the downstream condition, publish it back to the original queue. + +## Disabling the error queue + +For bus instances that should not have an error queue at all — a short-lived CLI tool, a load-test sender — set `DisableErrors = true`: + +```csharp +builder.ConfigureQueues(q => +{ + q.QueueName = "onetime-sender"; + q.DisableErrors = true; +}); +``` + +With this on, retries still happen, but exhausted messages are dropped silently instead of going to the error queue — and so are validator-rejected messages, the no-handler dead-letter branch, AND the error-exchange fallback that normally runs when a retry-queue republish itself fails. Every drop surfaces on the `messaging.serviceconnect.retry.drops` counter with `error.type=errors-disabled` so operators can alert on the drop rate. Auditing is orthogonal: `DisableErrors=true` does NOT suppress audit publishes (those remain gated only by `IQueueConfiguration.AuditingEnabled`). This is a scalpel — don't use it in a consumer that processes real traffic without a working alert on the drop counter. + +## Retry-publish failure modes + +ServiceConnect publishes retry and error-queue messages with `mandatory: true`. If the target queue/exchange is missing (e.g. the retry queue was deleted out-of-band), the broker returns the message and `BasicPublishAsync` raises `PublishException`. ServiceConnect logs this at `Error` level and acknowledges the original delivery to break the redelivery loop. **The message is lost in this scenario** — operator action is required to restore the topology before the next failure can be retried. + +Publishing with `mandatory: true` is what makes this failure mode visible — the broker returns the unroutable message rather than silently dropping it. Operators monitoring `PublishException` logs see the topology issue immediately instead of discovering it later when messages are missing from the error queue. + +## Terminal failures + +Not every failure is retryable. A message with no `TypeName` header, a message that exceeds the transport's `MessageSize` limit, a payload the serialiser can't parse — these land straight in the error queue on the first attempt, without consuming retry budget. The log line for these reads `"Rejecting permanently invalid inbound message..."` rather than `"Max retries exceeded..."`. + +This is the right distinction. A message that is malformed at the wire level can't be fixed by trying harder; retrying it just wastes broker time. A message that a handler *chose* to reject (because its own dependencies are down) gets the full retry budget. + +### Unregistered message types + +When a message arrives with a type that isn't in the dispatch registry, ServiceConnect treats it as a **terminal failure** — retrying never resolves the type. The message is routed via the not-handled path: + +- If `DeadLetterUnhandledMessages` is enabled, the message goes directly to the error queue. +- Otherwise the message is acked and dropped. + +The not-handled path short-circuits the retry budget: there is no point retrying a message whose type isn't registered, because the registry won't change between deliveries. Bypassing nack-with-requeue means unhandled messages clear the inbound queue immediately rather than re-circulating through retries that can't resolve the type. + +## Observing failures in code + +`IBusConfiguration.ExceptionHandler` is an async callback invoked on every dispatch-level exception. It runs alongside the retry machinery — not instead of it: + +```csharp +builder.ConfigureBus(bus => +{ + bus.ExceptionHandler = (ex, ct) => + { + _metrics.RecordHandlerFailure(ex.GetType().Name); + _alerting.NotifyIfBudgetExceeded(); + return ValueTask.CompletedTask; + }; +}); +``` + +If the callback performs async work, await it directly: + +```csharp +builder.ConfigureBus(bus => +{ + bus.ExceptionHandler = async (ex, ct) => await _sentry.CaptureAsync(ex, ct); +}); +``` + +Two things to notice: + +- **It is observational.** You cannot change the retry/error-queue decision from inside the callback. That machinery has already run. +- **It is a callback, not an interceptor.** Use it for metrics, alerting, a Sentry push. If you need to wrap the whole handler call with a `try`/`finally` — opening a span, starting a timer — reach for message-processing middleware instead. + +If the callback itself throws, the framework catches and logs at **Error** so a bug in an opt-in user-installed hook is unmissable, and the dispatcher continues — message processing is never blocked by a faulty `ExceptionHandler`. The original dispatch exception is unaffected: it's still attached to the returned `ConsumeEventResult` and drives the retry/error-queue path normally. + +## Exception hierarchy + +Framework exceptions live under `ServiceConnect.Interfaces.Exceptions`. Most derive from one abstract base — `ServiceConnectException` — so a single catch can quarantine the bulk of framework-originated failures without swallowing user exceptions: + +```csharp +try +{ + await bus.SendAsync(message); +} +catch (ServiceConnectException ex) +{ + // Any framework-level failure — transport, serialization, persistence, filter block, + // request-reply timeout, concurrency. The inner exception holds the underlying cause + // when the framework wrapped a third-party error. + _logger.LogError(ex, "ServiceConnect failed for {MessageType}", typeof(T).Name); + throw; +} +``` + +The one exception is `RequestSendCancelledException`, which derives from `OperationCanceledException` rather than `ServiceConnectException` so it composes with existing `catch (OperationCanceledException)` handlers callers already have around request-reply calls. Catch it alongside other `OperationCanceledException`s, or list it explicitly if you want it routed to the framework-error catch path: + +```csharp +try +{ + var reply = await bus.SendRequestAsync(request, ct: cancellationToken); +} +catch (RequestSendCancelledException) { /* outbound send aborted (transport drop, shutdown) */ } +catch (OperationCanceledException) { /* caller cancellation */ } +catch (ServiceConnectException) { /* everything else (timeout, transport, filter block, …) */ } +``` + +The concrete types and when each is raised: + +| Type | Raised when | +|---|---| +| `ServiceConnectException` | Abstract base — never thrown directly; use as the catch-all for any framework error. | +| `TransportException` | Broker-layer failure during send, publish, or consume. Carries the affected `Endpoint` when known, and wraps the underlying transport exception via `InnerException`. | +| `PersistenceException` | Persistor-layer failure (process-manager store, aggregator store, timeout store). BSON/serialization failures from the MongoDB persistors surface as this rather than as raw driver exceptions. | +| `ConcurrencyException` | Optimistic-concurrency conflict on a process-manager or aggregator write. The retry path replays the state load + handler, not the side-effects from the failed attempt. | +| `SerializationException` | Payload could not be serialised on send or deserialised on consume. Inbound failures are marked as terminal — see [Terminal failures](#terminal-failures). | +| `OutgoingFiltersBlockedException` | An outgoing filter returned `FilterAction.Stop`. The send never reached the producer; the call site decides whether to retry or drop. | +| `RequestTimeoutException` | A request-reply call didn't receive enough replies inside `options.Timeout`. Partial replies are surfaced on `PartialReplies` so callers can recover them. | +| `RequestSendCancelledException` | The outbound send pipeline of a request-reply call cancelled before the request reached the broker. Derives from `OperationCanceledException` so existing `catch (OperationCanceledException)` handlers still match. | + +`TransportException` is the one most operational alerting cares about — it's the signal that the broker is unreachable or the topology is wrong, distinct from cooperative cancellation or a serialization mistake. Wire it to your paging path; let `ServiceConnectException` cover the rest. + +## Idempotency is part of error handling + +A message that retries has a non-trivial chance of being redelivered after partial success — the handler did its work, then failed before acknowledging. The retry loop amplifies the duplicate rate that's inherent to ServiceConnect's at-least-once delivery contract. + +For the full delivery contract and the strategies that handle redelivery correctly, see [The delivery contract](/ServiceConnect-CSharp/learn/operations/idempotency/#the-delivery-contract). The short version: handlers must tolerate being run twice on the same message — upsert instead of insert, check state before acting, use the correlation id or message id as the idempotency key for downstream calls. The retry loop assumes it. + +## What comes next + +- [Observability](/ServiceConnect-CSharp/learn/operations/observability/) — the log lines this page references and how to correlate them with error-queue entries. +- [Configuration](/ServiceConnect-CSharp/learn/operations/configuration/) — the `MaxRetries`, `RetryDelay`, `ErrorQueueName`, `DisableErrors` knobs. +- [Competing Consumers](/ServiceConnect-CSharp/learn/messaging-patterns/competing-consumers/) — why idempotency is load-bearing. diff --git a/website/src/content/docs/learn/operations/hosting.mdx b/website/src/content/docs/learn/operations/hosting.mdx new file mode 100644 index 000000000..57a085a54 --- /dev/null +++ b/website/src/content/docs/learn/operations/hosting.mdx @@ -0,0 +1,130 @@ +--- +title: Hosting & Lifecycle +description: How the bus starts, stops, and fits into .NET generic-host or ASP.NET Core applications. +--- + +ServiceConnect ships an `IHostedService` adapter so the bus follows the same startup and shutdown signals as the rest of your application. You can also drive the lifecycle by hand for console workers. This page covers both, and the trade-offs between them. + +## The hosted path (recommended) + +Register the services, set `AutoStartConsuming = true`, and the bus participates in host startup and shutdown automatically: + +```csharp +// Program.cs +var builder = Host.CreateApplicationBuilder(args); + +builder.Services.AddSingleton>(new List +{ + new() { HandlerType = typeof(OrderPlacedHandler), MessageType = typeof(OrderPlaced) }, +}); + +builder.Services.AddServiceConnect(sc => +{ + sc.UseRabbitMQ(t => { t.Host = "rabbit"; }); + sc.ConfigureQueues(q => q.QueueName = "orders-service"); + sc.ConfigureBus(bus => bus.AutoStartConsuming = true); +}); + +await builder.Build().RunAsync(); +``` + +What happens: + +- The host's `StartAsync` runs `BusHostedService.StartAsync`, which calls `bus.StartConsumingAsync()` and waits for it to succeed. If the broker is down or the handler list is malformed, the exception propagates and the host **fails to start** — the right behaviour for a service that can't do its job. +- The host's `StopAsync` runs `BusHostedService.StopAsync`, which races `bus.StopConsumingAsync(cancellationToken)` against a `Task.Delay(TransportConfiguration.GracefulShutdownTimeoutMilliseconds)`. When the stop completes inside the window, in-flight messages drain cleanly; if the delay wins, the stop is cancelled and remaining work is abandoned (and will be redelivered on the next start, so design handlers to tolerate that). Setting `GracefulShutdownTimeoutMilliseconds` to zero or negative bypasses the race entirely and stops without a grace window. +- On crash or `Ctrl+C`, the host cancels `StopAsync`'s token. The bus stops accepting new messages and tries to drain; when the token fires, remaining work is cut. + +This is the shape for production. ASP.NET Core, Worker Service, Generic Host — they all do the same thing, because `BusHostedService` is a plain `IHostedService`. + +### Opting out of auto-start + +Leave `AutoStartConsuming = false` when you want the hosted infrastructure (DI, logging, lifecycle) but need to start consuming at a later point yourself: + +```csharp +sc.ConfigureBus(bus => bus.AutoStartConsuming = false); + +// Later — maybe after warm-up, maybe on a control-plane signal: +var bus = provider.GetRequiredService(); +await bus.StartConsumingAsync(ct); +``` + +The hosted service sees the flag is off and does nothing during `StartAsync`. `StopAsync` still stops on shutdown — it doesn't check the flag, because a stop-before-start is a cheap no-op. + +### Signalling readiness after auto-start + +When `AutoStartConsuming` is `true`, the bus calls `StartConsumingAsync` from inside `BusHostedService.StartAsync`. By the time the host reaches the running state, consuming has already begun. Hook `IHostApplicationLifetime.ApplicationStarted` for a single post-startup signal — logging, readiness probes, smoke tests — that fires once the host (including the bus) has reached the running state: + +```csharp +var lifetime = app.Services.GetRequiredService(); +lifetime.ApplicationStarted.Register(() => Console.WriteLine("bus consuming")); +``` + +See `examples/CustomFilterAndMiddleware/src/ServiceConnect.Examples.CustomFilterAndMiddleware.Consumer/Program.cs` for the pattern in context. + +## The manual path (console apps) + +Short-lived scripts, request-only producers, and samples don't need the generic host. Resolve the bus from the provider and drive it yourself: + +```csharp +var services = new ServiceCollection(); +services.AddLogging(); +services.AddSingleton>(new List()); +services.AddServiceConnect(sc => +{ + sc.UseRabbitMQ(t => { t.Host = "rabbit"; }); + sc.ConfigureQueues(q => q.QueueName = "sender-only"); +}); + +await using var provider = services.BuildServiceProvider(); +var bus = provider.GetRequiredService(); + +await bus.PublishAsync(new OrderPlaced(Guid.NewGuid())); +``` + +A pure producer like this never calls `StartConsumingAsync` — nothing needs consuming. A consumer worker that wants manual control calls `StartConsumingAsync`, then blocks until cancelled: + +```csharp +await bus.StartConsumingAsync(); + +using var cts = new CancellationTokenSource(); +Console.CancelKeyPress += (_, e) => { e.Cancel = true; cts.Cancel(); }; + +try { await Task.Delay(Timeout.InfiniteTimeSpan, cts.Token); } +catch (OperationCanceledException) { } + +await bus.StopConsumingAsync(); +``` + +The `await using var provider` at the top takes care of disposing the bus on exit — `DisposeAsync` stops consuming if it hasn't already, flushes the producer, and releases connections. + +## Lifecycle rules worth knowing + +A few invariants that surface as exceptions if you break them: + +- **`StartAsync` fails when no `IProducer` is registered.** `BusHostedService.StartAsync` throws `InvalidOperationException` if no transport adapter has registered an `IProducer` — typically because no `UseRabbitMQ(...)` (or other transport extension) call was made. Set `BusConfiguration.AllowMissingProducer = true` for consume-only or in-process test buses that genuinely never publish. +- **`StartConsumingAsync` on a bus with no registered consumer throws.** You need `UseRabbitMQ` (or another transport's `Use*` method) before the bus will have an `IConsumer` to start. +- **Two `StartConsumingAsync` calls throw `InvalidOperationException("Already consuming")`.** The bus runs one consumer loop per `IBus` instance; if you need more parallelism, raise `BusConfiguration.ConsumerCount` ([Competing Consumers](/ServiceConnect-CSharp/learn/messaging-patterns/competing-consumers/)). +- **Stop is terminal.** Once `StopConsumingAsync` has been called, the underlying consumer is disposed and the bus cannot resume. A subsequent `StartConsumingAsync` throws `"Bus has been stopped; dispose it and create a new Bus instance to resume consuming."` If you need to restart, build a new `IBus` — which means, in practice, a new host or a new scope. +- **Dispose is idempotent.** `DisposeAsync` stops consumption if necessary; calling it twice is safe. `await using` or host-managed DI handles it for you. + +## Startup failures + +If the broker is unreachable, or queue declaration conflicts with an existing queue, `StartConsumingAsync` throws during startup. With `AutoStartConsuming = true`, that exception propagates out of `BusHostedService.StartAsync` and the host refuses to start. This is by design — a silent "started but not consuming" state is harder to debug than a loud failure. + +If you want graceful degradation ("log, keep the HTTP server up, retry in the background"), set `AutoStartConsuming = false` and write that retry loop yourself. Most services shouldn't. + +## Graceful shutdown + +`GracefulShutdownTimeoutMilliseconds` on the transport config is how long the bus gives in-flight handlers to finish when `StopConsumingAsync` is called. The default is enough for typical handlers; raise it if your handlers are known-slow (and noisy with a partial-work problem), lower it if you need faster shutdowns and can tolerate redelivery of in-flight messages. + +A handler that crosses the deadline is abandoned — its message was not acked, so the broker will redeliver it on the next start. That is the right trade-off: cutting the wait is always safe because the messaging infrastructure will replay the work; cutting it is *not* safe if your handler has non-idempotent side effects. See [Competing Consumers](/ServiceConnect-CSharp/learn/messaging-patterns/competing-consumers/) for the idempotency argument. + +## Health checks + +The `ServiceConnect.HealthChecks` package ships `IHealthCheck` classes for bus, consumer, and producer state, registered through `IHealthChecksBuilder` extensions on `services.AddHealthChecks()`. See [Observability — Health checks](/ServiceConnect-CSharp/learn/operations/observability/#health-checks) for the wiring details. + +## What comes next + +- [Configuration](/ServiceConnect-CSharp/learn/operations/configuration/) — the full set of knobs this page references. +- [Error Handling](/ServiceConnect-CSharp/learn/operations/error-handling/) — what happens when a handler throws. +- [Observability](/ServiceConnect-CSharp/learn/operations/observability/) — logs emitted during startup and shutdown. diff --git a/website/src/content/docs/learn/operations/idempotency.mdx b/website/src/content/docs/learn/operations/idempotency.mdx new file mode 100644 index 000000000..2b8df6fca --- /dev/null +++ b/website/src/content/docs/learn/operations/idempotency.mdx @@ -0,0 +1,142 @@ +--- +title: Idempotency +description: Why duplicates happen in ServiceConnect, how to design handlers that tolerate them, and when to add a filter-based deduplication backstop. +--- + +import { Aside } from '@astrojs/starlight/components'; + +## The delivery contract + +ServiceConnect delivers each message **at least once** — see [Competing Consumers](/ServiceConnect-CSharp/learn/messaging-patterns/competing-consumers/) for the delivery model. A handler may run more than once for the same message — +the broker can redeliver, the consumer can redeliver, and a process crash between +handler success and the broker recording the ack causes a redelivery on next +startup. + +The framework persists state (process-manager finders, aggregator data, scheduled +timeouts) **before** sending the ack. So when a redelivery happens, your handler +runs against state that may already reflect the prior attempt's effects. + +Concretely: a payment handler that calls `chargeCard(...)` and then crashes after +the API call but before the broker records the ack will charge the card twice on +redelivery. The framework will not stop this for you — it cannot tell your +business intent from the message bytes. There are two places to defend, in +preference order: + +1. **Make the handler naturally idempotent.** Look up by a stable business key + first; reconcile rather than overwrite. (Most of this page from here on + documents this approach.) +2. **Deduplicate at the framework boundary.** Build a per-consumer dedup filter + pair (`BeforeConsuming` + `OnConsumedSuccessfully`) that records each + completed `MessageId` and short-circuits redeliveries. Useful when the work + itself is hard to make idempotent and you want a generic guard. See + [Filter-based deduplication](#filter-based-deduplication-for-non-idempotent-side-effects) + below. + +Both are valid; the first is cheaper and composes better. Idempotent handlers +also survive scenarios deduplication doesn't catch (e.g. a manual replay through +a tool that mints fresh IDs). + +## Handler-side idempotency (preferred) + +Design the handler so that processing the same message twice produces the same +end state as processing it once. This is the most reliable defence because it +survives every kind of duplicate — broker redelivery, publisher retries, manual +requeues — and requires no external infrastructure. + +Common patterns: + +- **Natural keys and upserts.** `INSERT ... ON CONFLICT DO NOTHING` against a + table with a unique index on the message's business id. The second delivery + does nothing. +- **Check-then-act in the same transaction.** Write the `MessageId` alongside + the side effect in a single database transaction. Before doing work, check + whether the id is already present. +- **Outbox / inbox pattern.** The handler writes the processed id alongside any + outgoing events in one transaction. Subsequent deliveries find the inbox row + and skip. + +The common thread: the dedup check lives inside the **same consistency boundary** +as the side effect — no window between the check and the write. + +## Filter-based deduplication (for non-idempotent side effects) + +When the side effect is outside your consistency boundary — calling a +third-party API, sending an email, taking a payment — you cannot always make +the handler idempotent. For these cases, build a pair of per-consumer filters +that wrap the pipeline: + +1. **Before-consuming filter** — checks whether the incoming `MessageId` is + already in the dedup store. If it is, return `FilterAction.Stop` to + short-circuit the pipeline without redelivering. +2. **OnConsumedSuccessfully filter** — records the `MessageId` in the dedup + store only *after* the handler completes successfully. + +The `OnConsumedSuccessfully` stage is specifically designed for this use case: +it fires only when the handler returned without throwing and the message was +not unhandled, so a handler crash will not cause a key to be recorded +prematurely — the broker will redeliver, and the before-filter will not find +the id. + +```csharp +// Register both ends of the pair +services.AddSingleton(); +services.AddSingleton(); +services.AddSingleton(); + +services.AddServiceConnect(builder => +{ + // ... + builder.AddBeforeConsumingFilter(); + builder.AddOnConsumedSuccessfullyFilter(); +}); +``` + +A worked implementation is in the +[`CustomFilterAndMiddleware` sample](https://github.com/R-Suite/ServiceConnect-CSharp/tree/master/examples/CustomFilterAndMiddleware). +See the [`IFilter` reference](/ServiceConnect-CSharp/reference/filters/ifilter/) +for the filter interface and all registration methods. + + + + + + + +## Combining the two + +In practice, production services use both defences. Handler-side idempotency is +the correctness guarantee. The filter pair is a performance optimisation (skip +the work entirely) and a backstop for the cases where handler-side idempotency +is impractical. + +Rough rule: + +- **Small, idempotent handlers** — handler-side only. No extra infrastructure. +- **Expensive or externally-visible side effects with a natural upsert key** — + both. The filter stops duplicates cheaply; the handler's own check handles any + that slip through. +- **Purely external side effects with no natural idempotency key** (e.g. sending + an SMS) — filter pair is your primary option short of redesigning the + downstream API. Consider whether the external API offers an idempotency key + header you can derive from the `MessageId`. diff --git a/website/src/content/docs/learn/operations/observability.mdx b/website/src/content/docs/learn/operations/observability.mdx new file mode 100644 index 000000000..cc5feaa97 --- /dev/null +++ b/website/src/content/docs/learn/operations/observability.mdx @@ -0,0 +1,293 @@ +--- +title: Observability +description: The three observability surfaces — logs, the audit queue, and headers — and how to stitch them into a useful view. +--- + +Observability in a messaging system is three overlapping views of the same events: *logs* tell you what the bus did, the *audit queue* gives you a replayable copy of every message it handled, and *headers* carry enough metadata to correlate each processed message back to a specific run. ServiceConnect offers all three. This page covers what each one is for, and how to wire them together so an on-call engineer can answer "what happened to message X?". + +## Logs + +The bus logs through `Microsoft.Extensions.Logging`. No special setup is needed — the `ILogger` instances in the container are what the bus writes to, so whatever sink you've configured (console, file, Seq, Application Insights) receives its logs automatically. + +Key log events you'll see in a healthy system: + +- **Startup**: `"Bus starting to consume on queue {QueueName} for {Count} message types."` — fired once during `StartConsumingAsync`. If the bus has started, this has logged. +- **Shutdown**: `"Bus stopping message consumption."` — fired from `StopConsumingAsync`. +- **Unregistered type** (warning): `"Unregistered message type '{TypeName}'. Rejecting"` — fired for an incoming message whose type name isn't in the handler registry. Usually a topology mistake (wrong queue binding) or a forgotten handler registration. + +Key log events for failures: + +- **Dispatch error** (error): `"Error dispatching message of type {MessageType}"` — fired every time a handler (or a filter, or the deserializer) throws. Always paired with an exception. +- **Max retries exceeded** (error): `"Max retries exceeded for MessageId {MessageId}"` — fired when a retried message reaches `MaxRetries` and is about to land in the error queue. +- **Terminal rejection** (error): `"Rejecting permanently invalid inbound message with MessageId {MessageId}"` — fired for messages that are unparsable on the wire (missing headers, oversized payload) and go straight to the error queue without retries. + +Structure log queries around `MessageId`. Every published message has one (the bus stamps it); it follows the message through retries and into the error queue via the `MessageId` header. Searching for a single `MessageId` in your log aggregator gets you the full processing history of that message. + +## The audit queue + +When `AuditingEnabled = true`, every successfully processed message is republished to `AuditQueueName` (default `"audit"`) with its headers preserved. Setup: + +```csharp +builder.ConfigureQueues(q => +{ + q.QueueName = "orders-service"; + q.AuditingEnabled = true; + q.AuditQueueName = "orders-service.audit"; +}); +``` + +What audit gives you that logs don't: + +- **Full message body.** Logs have the exception and the `MessageId`; the audit queue has the actual bytes the handler saw. When a bug surfaces days later, you have the payload to reproduce. +- **Replay.** The audit queue is just a queue. Nothing stops you from draining it into the main queue and re-running the workflow against a fixed handler. Treat that as a manual operator action, not an automated retry. +- **Downstream analytics.** Because audit is a copy of the real traffic, you can point a stream processor (Kafka mirror, Logstash, whatever) at it without being in the critical path. + +Two important caveats: + +- **Byte-stream messages are not audited.** The stream packets ([Streaming](/ServiceConnect-CSharp/learn/messaging-patterns/streaming/)) would flood the audit queue with raw frames; the audit publisher skips anything tagged as a stream. +- **Failed messages are not audited.** Audit is the success path. Failed messages go to the error queue ([Error Handling](/ServiceConnect-CSharp/learn/operations/error-handling/)), and the two queues are deliberately separate. + +Size the audit queue. If you keep it around indefinitely it grows linearly with traffic; either consume it to archive storage on a schedule, or set a queue-level TTL or length limit in RabbitMQ. + +## Standard headers + +Every message the bus sends carries a consistent set of headers. These are the primitives you stitch telemetry from: + +| Header | What it is | Typical use | +|---|---|---| +| `MessageId` | Unique per send | Log correlation, idempotency key | +| `CorrelationId` | The conversation id | Stitch request/reply or a saga's full trace together | +| `SourceAddress` | Sending queue name | "Who sent this?" — populated automatically | +| `DestinationAddress` | Receiving queue | "Where is this going?" | +| `TimeSent` | UTC timestamp at send | Compare to `TimeReceived` to observe transit time | +| `TimeReceived` | UTC timestamp at consume | End-to-end latency signal | +| `TimeProcessed` | UTC timestamp after handler | Handler duration if you want to split transit from processing | +| `RetryCount` | Attempts so far | Diagnose retry storms; populated by the retry handler | +| `Exception` | JSON-serialised error | Present in error-queue entries only | + +All header names live in `ServiceConnect.Interfaces.HeaderKeys` so you don't have to spell them. The `IConsumeContext` on a handler exposes the whole header dictionary — see [Handlers](/ServiceConnect-CSharp/learn/core-concepts/handlers/). + +There are also two opt-in headers: + +- **`SourceMachine`** and **`DestinationMachine`** — sender and receiver hostnames. Off by default: `IncludeMachineNameInHeaders = true` on the bus config turns them on. Useful for multi-tenant brokers where you need to identify the sender host, but be aware that exposing internal hostnames to every audit consumer is an information-disclosure risk. + +## Tracing (OpenTelemetry) + +The **`ServiceConnect.Telemetry`** package provides the `ActivitySource` plumbing for distributed tracing. It exposes a single source (`ServiceConnectActivitySource.ActivitySourceName`) that emits publish, send, and consume spans, each tagged with the OTel messaging semantic conventions (`messaging.system`, `messaging.destination.name`, `messaging.rabbitmq.destination.routing_key`, `messaging.message.id`, `messaging.message.conversation_id`). For RabbitMQ, `messaging.destination.name` carries the broker-side destination — the exchange name for publishes and the queue name for sends — and `messaging.rabbitmq.destination.routing_key` carries the publish routing key when present. Operation classification follows the OTel messaging semconv 1.x attributes: `messaging.operation.type` is `publish` for the producer side (sends and publishes alike) and `process` for the consumer side, and `messaging.operation.name` mirrors that with `publish` / `process`. The span also carries `server.address` (broker hostname or first entry of a cluster list) and `server.port` (broker TCP port from `ITransportConfiguration.ClientSettings["Port"]` when present). Backends can aggregate each shape separately by filtering on `messaging.operation.type`. + +```bash +dotnet add package ServiceConnect.Telemetry +``` + +### Wiring + +Call `builder.AddTelemetry()` inside `AddServiceConnect`, then register the single activity source with your OTel tracing builder: + +```csharp +using ServiceConnect.Telemetry; + +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(/* ... */); + builder.AddTelemetry(opts => { /* optional enrichment */ }); +}); + +services.AddOpenTelemetry() + .WithTracing(tracing => tracing + .AddServiceConnectInstrumentation() + .AddOtlpExporter()); +``` + +To disable a specific direction without unregistering the source, use the per-direction flags in `ServiceConnectInstrumentationOptions`: + +```csharp +builder.AddTelemetry(opts => +{ + opts.EnablePublishTelemetry = false; // suppress publish spans + opts.EnableSendTelemetry = false; // suppress send spans + // opts.EnableConsumeTelemetry is true by default +}); +``` + +W3C `traceparent`/`tracestate` propagation is unaffected by the enable flags — headers are injected and extracted regardless of whether ServiceConnect emits its own span for that direction. + +### Pipeline ordering — user outgoing filters run before the telemetry span starts + +`TelemetrySendMiddleware` is registered at the **outermost** position on the send-message middleware pipeline so its activity brackets every other middleware on the way out and on the way back. User outgoing filters, however, are a separate pipeline stage that runs **before** the send-message middleware on the outgoing path. The order is: + +``` +user code → outgoing filters → send-message middleware (telemetry span starts here) → producer +``` + +Two consequences worth knowing: + +- **Outgoing filters do not see the new publish/send span's `traceparent`.** The telemetry span is started inside the send-message middleware, after the filters have already run. Filters that need a parent trace context observe `Activity.Current` from the *caller's* ambient context (typically the inbound consume span for handlers that publish, or the application's root span for app code) — not the publish/send span ServiceConnect is about to create. +- **A filter that returns `FilterAction.Stop` (or throws) aborts the call before the telemetry middleware runs.** No publish/send span is created for the blocked delivery. The `OutgoingFiltersBlockedException` thrown to the caller carries the user-visible signal; observability backends will see the absence of a span where one was expected. + +If you want a span that brackets the entire `IBus` call — including the filter stage — start one in your application code around the `PublishAsync` / `SendAsync` invocation. The framework's own publish/send span is scoped narrowly to the wire path. + +### Enrichment + +Use `opts.EnrichWithMessage` to attach application-specific tags to a span from the decoded message: + +```csharp +builder.AddTelemetry(opts => +{ + opts.EnrichWithMessage = (activity, message) => + activity.SetTag("app.correlation_id", message.CorrelationId); +}); +``` + +> **Security note.** Do not attach raw payload fields (or raw bytes) as span tags without review — messages may contain PII or regulated data that would then flow to every observability backend. + +### Propagation + +The framework injects W3C `traceparent`/`tracestate` headers onto every outgoing publish and send, and extracts them on the consume side. A span recorded by a subscriber is a direct child of the publisher's span — a single `TraceId` threads the full journey across the broker, even across independent processes. See the [`examples/Telemetry`](https://github.com/R-Suite/ServiceConnect-CSharp/tree/master/examples/Telemetry) sample for a three-process demonstration. + +For bespoke headers that aren't tracing — redaction, a tenant stamp — the [Filters](/ServiceConnect-CSharp/learn/messaging-patterns/filters/) API remains the right hook. Filters and telemetry compose; they don't compete. + +## Metrics + +ServiceConnect emits operator-grade metrics via `System.Diagnostics.Metrics`. The Meter is named `ServiceConnect.Bus` and is **always-on** — instruments are zero-cost when no listener subscribes (BCL pattern, same as `HttpClient`). + +### Wiring + +For OpenTelemetry users: + +```csharp +services.AddOpenTelemetry().WithMetrics(b => b.AddServiceConnectInstrumentation()); +``` + +Without OpenTelemetry, attach a `MeterListener` directly: + +```csharp +var listener = new MeterListener(); +listener.InstrumentPublished = (instrument, l) => +{ + if (instrument.Meter.Name == "ServiceConnect.Bus") l.EnableMeasurementEvents(instrument); +}; +listener.Start(); +``` + +### Catalogue + +Tags follow the [OpenTelemetry messaging-metrics conventions](https://opentelemetry.io/docs/specs/semconv/messaging/messaging-metrics/). All metrics carry `messaging.system="rabbitmq"` and (where applicable) `messaging.destination.name`. ServiceConnect-specific metrics live under the `messaging.serviceconnect.*` sub-namespace. + +| Metric | Type | Unit | What it counts | +|---|---|---|---| +| `messaging.publish.duration` | Histogram | s | Wall time of a publish, from start to broker ack | +| `messaging.process.duration` | Histogram | s | Wall time of consumer-side handler dispatch | +| `messaging.client.published.messages` | Counter | \{message\} | Messages successfully published | +| `messaging.client.consumed.messages` | Counter | \{message\} | Messages consumed; tagged `messaging.outcome=success\|error\|retry` | +| `messaging.serviceconnect.retry.attempts` | Counter | \{attempt\} | Header-counter retry increments | +| `messaging.serviceconnect.retry.drops` | Counter | \{drop\} | Messages dropped because retry publishing failed | +| `messaging.serviceconnect.publish.confirm_timeouts` | Counter | \{timeout\} | Publishes that exceeded the configured publish timeout. Tagged with `messaging.system`, `messaging.operation.type=publish`, and `messaging.destination.name` (the exchange name, or the routing key when exchange is empty — `SendAsync` routes through the default exchange so the routing key carries the real per-queue destination). | +| `messaging.serviceconnect.audit.drops` | Counter | \{drop\} | Audit messages that failed to publish | +| `messaging.serviceconnect.outgoing_filters.blocked` | Counter | \{message\} | Outgoing operations aborted because an outgoing filter returned `FilterAction.Stop`. No publish/send span is emitted for blocked operations, so this counter is the operator-visible signal for filter-suppressed deliveries. Tagged with `messaging.system=serviceconnect` and (when known) `messaging.message.type`. | +| `messaging.serviceconnect.process.messages.inflight` | UpDownCounter | \{message\} | Currently-dispatched, not-yet-acked messages | +| `messaging.serviceconnect.aggregator.snapshot_remove_failed_after_dispatch` | Counter | \{failure\} | Aggregator snapshot-remove failures after a successful handler dispatch — indicates the at-least-once duplicate window has been entered for the affected rows | + +The `error.type` tag is added on failure paths via an allow-list mapper. Stable mapped values are: `cancelled` (`OperationCanceledException`), `timeout` (`TimeoutException`), `channel_closed` (`AlreadyClosedException`), `broker_unreachable` (`BrokerUnreachableException`), `publish_nacked` (`PublishException`), `broker_interrupted` (`OperationInterruptedException` and its subclasses). Everything else falls back to the exception's `Type.Name`. Exception messages are never used as tags — they're unbounded cardinality. + +**Carve-out for `messaging.publish.duration`:** `TimeoutException` does NOT add `error.type=timeout` on this metric. A publish-confirm timeout means the broker acknowledgement did not arrive within the configured window, but delivery may still have succeeded — adding `error.type` here would produce misleading "publish error" signals in duration-based dashboards. Use the `messaging.serviceconnect.publish.confirm_timeouts` counter as the authoritative signal for confirm-timeouts. All other failure types carry `error.type` as normal on this metric. + +### Cardinality + +Typical deployments — 5-20 queues, 5-20 exchanges, ~5 outcome / error categories — yield ~400-500 active series per metric upper-bound. Operators with very high queue counts (1000+) should consider this when sizing their TSDB. + +The `messaging.outcome` tag is a closed three-value set (`success | error | retry`) at the consumer-host emit site. The "drop" outcome (retry-publish-failure path) is captured separately on `messaging.serviceconnect.retry.drops` rather than as a fourth `outcome` value: when the retry publish fails, `InboundMessageProcessor` returns `processed=true` so the broker stops redelivering the poison message, and that signal collapses with normal success at the host emit site — there's no fourth value to surface without changing the contract. + +Note that `messaging.serviceconnect.audit.drops` is the one metric that doesn't carry `messaging.destination.name` — the audit queue is a single global destination, so per-queue cardinality doesn't apply there. + +Per-message tags (`messaging.message.id`, routing keys, conversation IDs) are deliberately NOT included on metrics — they belong on traces, where one span per message matches the data model. + +### Tracing vs metrics + +Tracing is **opt-in** via `AddTelemetry()` (see the Wiring subsection under Tracing above) because span creation has a per-message allocation cost that's only worth paying when you'll actually export the spans. Metrics are **always-on** because instrument emission is free without a listener — same pattern as the .NET BCL libraries (`HttpClient`, `EFCore`, `Sockets`). + +### Connection-lifecycle logs + +Beyond metrics, ServiceConnect emits structured Info logs for connection state transitions. Filter on the `ServiceConnect.Client.RabbitMQ` category: + +| Event ID | Event name | Level | Emitted when | +|---|---|---|---| +| 2 | `ConnectionOpened` | Information | A consumer connection establishes | +| 3 | `ProducerConnectionOpened` | Information | A producer connection establishes | +| 4 | `ConnectionRecovered` | Information | RabbitMQ.Client's auto-recovery restores the connection and replays the topology (exchanges, queues, bindings) on the new channel — `TopologyRecoveryEnabled = true` so consumer bindings survive cluster failover to a fresh broker node | +| 5 | `ConnectionLost` | Information | The broker initiates `ConnectionShutdown` (e.g. broker restart, cluster failover) — NOT escalated to Warning because broker-initiated shutdowns happen for normal operational reasons | +| 6 | `AckFailed` | Warning | An ack call fails; carries `MessageId` for correlation | +| 7 | `NackFailed` | Warning | A nack call fails; carries `MessageId` for correlation | + +## Health checks + +`ServiceConnect.HealthChecks` ships three opt-in `IHealthCheck` classes for `Microsoft.Extensions.Diagnostics.HealthChecks`: + +| Check | Default name | Observes | +|---|---|---| +| `BusConsumingHealthCheck` | `serviceconnect-bus` | `IBus.IsConsuming` | +| `ConsumerConnectionHealthCheck` | `serviceconnect-consumer` | `IConsumer.IsConnected` | +| `ProducerConnectionHealthCheck` | `serviceconnect-producer` | `IProducer.IsHealthy` | + +The package is transport-agnostic — it depends only on `ServiceConnect.Interfaces`. All three checks are O(1) state inspections; they do not open broker channels or perform AMQP round-trips per probe. + +```bash +dotnet add package ServiceConnect.HealthChecks +``` + +### Wiring + +Pick the calls that match what your host actually does. A consume-only host omits `AddServiceConnectProducer`; a publish-only host omits both `AddServiceConnectConsumer` and `AddServiceConnectBus` (a host that never starts consuming would report `IsConsuming` permanently `false`); hosts that do both call all three. + +```csharp +using ServiceConnect.HealthChecks; + +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(t => t.Host = "rabbit"); +}); + +services.AddHealthChecks() + .AddServiceConnectBus(tags: ["live"]) + .AddServiceConnectConsumer(tags: ["ready"]) + .AddServiceConnectProducer(tags: ["ready"]); + +app.MapHealthChecks("/health/live", new HealthCheckOptions { Predicate = c => c.Tags.Contains("live") }); +app.MapHealthChecks("/health/ready", new HealthCheckOptions { Predicate = c => c.Tags.Contains("ready") }); +``` + +### Broker-initiated cancellation + +When the broker cancels a ServiceConnect consumer (queue deleted, queue policy expired, mirror promoted), the consumer's deliveries stop. ServiceConnect detects this via AMQP's `basic.cancel` event and propagates the signal: + +- `IBus.IsConsuming` returns `false`. +- `BusConsumingHealthCheck` reports `Unhealthy`. + +Operator action: investigate the broker-side cause, fix it (re-create the queue with the right arguments, restore the policy, etc.), then restart the host. ServiceConnect does **not** auto-redeclare the queue — that would defeat an operator's deliberate deletion. + +### Steady-state semantics + +Each check inspects the *last known* state from the transport client's event stream. There is no active probing — that would compete with real traffic and amplify failure modes (a probe interval of 5 seconds × N replicas would mean steady channel churn against the broker for what is, in practice, a one-bit signal). Each check also honours the framework-supplied `CancellationToken` — probes cancelled by the health-check framework (timeout or shutdown) surface as `OperationCanceledException` rather than returning a stale result. + +Three timing / state footnotes worth knowing: + +- **The producer connects lazily — and the check knows it.** `ProducerConnectionHealthCheck` distinguishes lazy-not-yet-tried from failure via `IProducer.HasAttemptedConnection`. Before any publish or send has been issued (`HasAttemptedConnection` is `false`), the check returns `Healthy` so pods don't crash-loop at startup. Once the first publish attempt completes (success or failure), `HasAttemptedConnection` becomes `true` and the check then reflects the real `IProducer.IsHealthy` state. Hosts that publish only in response to inbound traffic should still **not put the producer check on the `ready` tag** — the check can't detect a connection failure until an outbound attempt is made. Use `AddServiceConnectConsumer` only on `ready` for that topology. +- **The window between connection drop and event observation.** When the broker connection drops, there is a small (millisecond-scale) gap before the client raises its shutdown event and `IsConnected` / `IsHealthy` flip to `false`. A probe firing inside that gap can still see Healthy. This is shorter than any K8s probe interval and is the same gap any in-process check has, regardless of implementation. + +### Custom checks + +If you need anything more than the shipped three checks — a custom predicate over multiple bus state pieces, a different failure-status mapping, integration with a non-`Microsoft.Extensions.Diagnostics.HealthChecks` framework — implement `IHealthCheck` directly against `IBus`, `IConsumer`, or `IProducer`. The shipped check classes are sealed; their source is short enough to copy as a starting point. + +## Putting it together + +An on-call engineer is looking at a ticket that says "the welcome-email job didn't fire for user X." The stitching looks like this: + +1. **Find the message by correlation id** (probably the user id) in the audit queue — that tells you whether the event actually hit the bus. +2. **If it's there, search logs for that `MessageId`** — a handler exception, or a warning about an unregistered type, falls out here. +3. **If the log trail ends with "Max retries exceeded,"** pull the message from the error queue — the `Exception` header tells you what threw. Fix the root cause, then replay from audit or from the error queue back into the main queue. +4. **If the audit queue doesn't have it,** the problem is upstream of the bus — the publisher didn't send it. That's a different investigation, but one this stack doesn't obscure. + +## What comes next + +- [Error Handling](/ServiceConnect-CSharp/learn/operations/error-handling/) — the error-queue side of the investigation flow above. +- [Filters](/ServiceConnect-CSharp/learn/messaging-patterns/filters/) — the hook to add tracing, redaction, or custom header stamping. +- [Configuration](/ServiceConnect-CSharp/learn/operations/configuration/) — `AuditingEnabled`, `AuditQueueName`, `IncludeMachineNameInHeaders`. diff --git a/website/src/content/docs/migrating-v6-to-v7.mdx b/website/src/content/docs/migrating-v6-to-v7.mdx new file mode 100644 index 000000000..625e9a5e3 --- /dev/null +++ b/website/src/content/docs/migrating-v6-to-v7.mdx @@ -0,0 +1,409 @@ +--- +title: Migrating from v6 to v7 +description: A focused walkthrough of the v6 → v7 upgrade — the mechanical conversions the compiler will demand, and the silent bear traps it won't. +--- + +v7 is a clean-architecture rewrite of ServiceConnect. The public surface, the hosting model, the wire format, the broker defaults, and the observability shape have all moved. Most of the upgrade is compiler-driven; the parts that aren't are listed below as **bear traps** — code that compiles and runs against v7 but behaves differently from v6 in ways that will only show up under load, on the broker, or in your dashboards. + +This guide is deliberately narrow. It walks you through the mechanical conversions in roughly the order you should tackle them, then enumerates the runtime-behaviour traps. It is **not** a complete changelog — see [the v7 release notes](/releases/#v7) for the full inventory. + +## Before you start + +1. **Pin a target.** Every v7 package supports `net8.0` and `net10.0`. There is no `netstandard2.x`, `net6.0`, or `net7.0` build. If you're on `net6.0` or `net7.0`, upgrade to `net8.0` first; if you're already on `net8.0`, you can stay there (it will be dropped in the first major after Microsoft's EoL on 2026-11-10). +2. **Map your packages.** The solution collapsed from 17 production projects to 7 packages. If you depend on any of these, you need to make a decision before upgrading: + + | v6 package | v7 status | + | ------------------------------------------- | ------------------------------------------------------ | + | `ServiceConnect` | shipped as v7.0.0 | + | `ServiceConnect.Interfaces` | shipped as v7.0.0 | + | `ServiceConnect.Client.RabbitMQ` | shipped as v7.0.0 | + | `ServiceConnect.Persistence.MongoDb` | shipped as v7.0.0 (typo fixed: was `Persistance`) | + | `ServiceConnect.Persistence.InMemory` | shipped as v7.0.0 | + | `ServiceConnect.Telemetry` | shipped as v7.0.0 (major rework — see below) | + | `ServiceConnect.HealthChecks` | **new** in v7 | + | `ServiceConnect.Persistence.SqlServer` | **removed**, no replacement | + | `ServiceConnect.Persistence.Redis` | **removed**, no replacement | + | `ServiceConnect.Filters.MessageDeduplication` | **removed** — rebuild using `OnConsumedSuccessfully` (see below) | + +3. **Stage your broker.** Several broker-visible defaults flipped (TLS on, publisher confirms on, retry/error publishes `mandatory:true`, exchange-name scheme changed). If v6 and v7 will share a broker during rollout, read the [bear traps](#bear-traps) section first. + +4. **Branch and pin v6.** Tag your last-good v6 deploy and start the migration on a branch — the API rewrite touches every consumer codebase, and reverting halfway is awkward. + +## Step 1 — Replace the static `Bus` with DI + +The biggest mechanical change. The static `Bus.Initialize(...)` entry point is gone; everything is `Microsoft.Extensions.DependencyInjection`-driven, and `IBus` is `IAsyncDisposable`. + +**Before (v6):** + +```csharp +var bus = Bus.Initialize(config => +{ + config.SetContainer(); + config.TransportSettings.SetHost("rabbit.local"); + config.TransportSettings.Username = "guest"; + config.TransportSettings.Password = "guest"; + config.PersistenceSettings.SetConnectionString("mongodb://mongo.local/sc"); + config.SetAuditingEnabled(false); +}); + +bus.StartConsuming(); +// ... +bus.Dispose(); +``` + +**After (v7):** + +```csharp +var builder = Host.CreateApplicationBuilder(args); + +builder.Services.AddServiceConnect(sc => +{ + sc.UseRabbitMQ(t => + { + t.Host = "rabbit.local"; + t.Username = "guest"; + t.Password = "guest"; + // t.SslEnabled = false; // see the TLS bear trap below + }); + sc.UseMongoDbPersistence(p => + { + p.ConnectionString = "mongodb://mongo.local/sc"; + }); + sc.ScanAssemblies(typeof(Program).Assembly); + sc.ConfigureBus(bus => bus.AutoStartConsuming = true); +}); + +using var app = builder.Build(); +await app.RunAsync(); +``` + +Key points: + +- The bus is now resolved as `IBus` from DI and runs under `BusHostedService`. +- `AutoStartConsuming = true` (set via `ConfigureBus`) replaces the explicit `bus.StartConsuming()` call. +- `IBus` is **single-use**. Once stopped or disposed, calling `StartConsumingAsync` again throws — you must resolve a new instance from DI. +- `Bus` no longer disposes transport singletons; lifetimes are owned by the DI container. + +## Step 2 — Convert handlers + +Every handler interface gained an `Async` suffix, takes the per-message context as a parameter, and accepts a `CancellationToken`. + +**Before (v6):** + +```csharp +public class OrderPlacedHandler : IMessageHandler +{ + public IConsumeContext Context { get; set; } // settable property + + public void Execute(OrderPlaced message) + { + Context.Reply(new OrderConfirmed { OrderId = message.OrderId }); + } +} +``` + +**After (v7):** + +```csharp +public class OrderPlacedHandler : IMessageHandler +{ + public Task HandleAsync( + OrderPlaced message, + IConsumeContext ctx, + CancellationToken ct) + { + return ctx.ReplyAsync(new OrderConfirmed { OrderId = message.OrderId }, cancellationToken: ct); + } +} +``` + +The settable `Context` (and `Stream` on `IStreamHandler`) property is gone — it was unsafe under singleton handlers. Pass the context through to any code that needs it. + +`IProcessHandler` and `IStreamHandler` follow the same shape: + +```csharp +Task IProcessHandler.HandleAsync( + TMessage message, TData data, IConsumeContext ctx, CancellationToken ct); + +Task IStreamHandler.ExecuteAsync( + TMessage message, IMessageBusReadStream stream, CancellationToken ct); +``` + +## Step 3 — Convert filters and middleware + +Pipeline configuration is now typed: each stage has its own `Add*` builder, and `ConfigurePipeline(Action)` is internal. + +**Before (v6):** + +```csharp +config.ConfigurePipeline(p => +{ + p.AddBeforeConsume(); + p.AddOutgoing(); +}); +``` + +**After (v7):** + +```csharp +sc.AddBeforeConsumingFilter(); +sc.AddOutgoingFilter(); +// New: fires only after successful handler invocation (see Step 7 for dedupe). +sc.AddOnConsumedSuccessfullyFilter(); +sc.AddAfterConsumingFilter(); + +// Middleware (was IProcessMessageMiddleware, now IMessageProcessingMiddleware): +sc.AddMessageProcessingMiddleware(); +sc.AddSendMessageMiddleware(); +``` + +If you previously relied on insertion order beyond "first registered wins outermost", use the explicit `InsertOutermost` helpers: + +```csharp +sc.InsertSendMessageMiddlewareOutermost(); // dedup-safe +sc.InsertMessageProcessingMiddlewareOutermost(); // dedup-safe +``` + +`IProcessMessageMiddleware` is removed. Convert to `IMessageProcessingMiddleware` (same idea, async signature). + +## Step 4 — Replace `SendOptions.EndPoints` / `RequestOptions.EndPoints` + +Multi-destination fan-out is now explicit, and partial-reply detection is no longer silent. + +**Before (v6):** + +```csharp +bus.Send(new ChargeCard(), new SendOptions +{ + EndPoints = new[] { "payments-a", "payments-b" } +}); + +var replies = bus.SendRequest( + new ChargeCard(), + new RequestOptions + { + EndPoints = new[] { "payments-a", "payments-b" }, + ExpectedReplyCount = 2 + }); +// returned whatever arrived before the timeout — silent under-delivery +``` + +**After (v7):** + +```csharp +await bus.SendToManyAsync( + new ChargeCard(), + new[] { "payments-a", "payments-b" }, + cancellationToken: ct); + +// SendRequestMultiAsync routes via the registered queue mapping for the message type +// — register multiple endpoints up front via AddQueueMapping(typeof(ChargeCard), new[] { "payments-a", "payments-b" }). +try +{ + var replies = await bus.SendRequestMultiAsync( + new ChargeCard(), + new RequestOptions { ExpectedReplyCount = 2 }, + ct); +} +catch (RequestTimeoutException ex) +{ + // Under-delivery is now a fault; partials are on the exception. + var partials = ex.PartialReplies; +} +``` + +If your code listened for `SendEventArgs.EndPoints` (plural), drop that — multi-endpoint sends now raise one event per destination, each with a singular `EndPoint`. Correlate by `CorrelationId`. + +## Step 5 — Convert remaining async signatures + +Every public bus operation took an `Async` suffix and a `CancellationToken`. Walk these compiler errors mechanically: + +```csharp +// v6 +bus.Publish(msg); +bus.Send("queue", msg); +ctx.Reply(reply, headers); + +// v7 +await bus.PublishAsync(msg, cancellationToken: ct); +await bus.SendAsync(msg, new SendOptions { EndPoint = "queue" }, ct); +await ctx.ReplyAsync(reply, new ReplyOptions { Headers = headers }, ct); +``` + +Reading collections off the wire are now `IReadOnly*`: + +```csharp +// v6 +IList destinations = routingSlip.Destinations; +IDictionary headers = ctx.Headers; + +// v7 (just rename — mutating call sites need a new instance) +IReadOnlyList destinations = routingSlip.Destinations; +IReadOnlyDictionary headers = ctx.Headers; +``` + +`IBusConfiguration.ExceptionHandler` is now async — convert `Action` to `Func`. + +## Step 6 — Replace `MessageDeduplication` + +The old `ServiceConnect.Filters.MessageDeduplication` package is gone outright. It silently dropped legitimate broker redeliveries and shared in-memory state via a static field, which made it unsafe across competing consumers. + +The replacement is the new fourth pipeline stage, `OnConsumedSuccessfully`, which fires only after a handler invocation succeeded — so any side effect you record there reflects an actual successful consume, not a broker redelivery. + +```csharp +public class MessageProcessedRecorder : IFilter +{ + private readonly IMessageProcessedStore store; + + public MessageProcessedRecorder(IMessageProcessedStore store) => this.store = store; + + public async Task ProcessAsync(Envelope envelope, CancellationToken ct) + { + var messageId = (string)envelope.Headers[HeaderKeys.MessageId]; + await store.RecordAsync(messageId, ct); + return FilterAction.Continue; + } +} + +sc.AddBeforeConsumingFilter(); // short-circuits on already-seen +sc.AddOnConsumedSuccessfullyFilter(); +``` + +A reference implementation lives in [`examples/CustomFilterAndMiddleware`](https://github.com/R-Suite/ServiceConnect-CSharp/tree/master/examples/CustomFilterAndMiddleware). + +## Step 7 — Adopt the new health checks (optional but recommended) + +v7 ships a dedicated `ServiceConnect.HealthChecks` package. If you previously rolled your own probe by reading bus state, replace it: + +```csharp +builder.Services + .AddHealthChecks() + .AddServiceConnectBus("bus") // BusConsumingHealthCheck + .AddServiceConnectConsumer("consumer") // ConsumerConnectionHealthCheck + .AddServiceConnectProducer("producer"); // ProducerConnectionHealthCheck +``` + +Each check supports a `recoveryGraceWindow` (default 30s) that absorbs transient broker disconnects. Permanent broker-cancel signals (queue deleted, policy expired, mirror promoted) bypass the grace and flip to unhealthy immediately — that's the new `IBus.IsCancelledByBroker` / `IConsumer.IsCancelledByBroker` signal at work. + +## Bear traps + +These are the things the compiler **will not** catch. Read this section before you cut a release. + +### Wire format: System.Text.Json is stricter than Newtonsoft + +v7 ships System.Text.Json across all production packages. The wire format is JSON-equivalent for typical messages, but System.Text.Json rejects payloads that Newtonsoft tolerated: + +| Payload | Newtonsoft (v6) | STJ (v7) | +| ---------------------------------- | ---------------- | -------------------------------------------- | +| `NaN`, `Infinity`, `-Infinity` doubles | accepted | `JsonException` | +| JSON object/array nesting > 32 | accepted (>100) | `JsonException` ("max depth") | +| Trailing commas | accepted | `JsonException` | +| JavaScript-style `//` comments | accepted | `JsonException` | +| Numbers as JSON strings | accepted | rejected for numeric properties | + +**Mitigation:** Audit producers (especially older v6 services that will publish during rollout) for these patterns. The repo ships a `ServiceConnect.SerializationCompatTests` project that enforces v6↔v7 round-trip on every PR — run it against representative payloads from your domain. + +If you have a transitional period where v6 and v7 services coexist on the same broker, plan to clean the lax-JSON producers first, then upgrade consumers. + +### Mongo aggregator partition rename + +The aggregator's `Name` partition value changed from the open-generic `typeof(Aggregator).FullName` to the closed concrete `typeof(ConcreteAggregator).FullName`. **Existing v6 rows will be invisible to v7 and accumulate forever.** Rename them before deploy: + +```javascript +// Run against the AggregatorPersistence collection (one document per aggregator instance). +db.AggregatorPersistence.find({ Name: /^ServiceConnect\.Aggregator/ }).forEach(doc => { + const concrete = mapV6NameToV7(doc.Name); // your mapping + db.AggregatorPersistence.updateOne( + { _id: doc._id }, + { $set: { Name: concrete } } + ); +}); +``` + +The exact mapping depends on which concrete aggregators you registered. If you only have one or two, hand-map them in a Mongo shell session. Keep a backup of the collection before running. + +### Mongo generic-saga collection rename + +Saga data collections derived from generic `FullName`s used characters that v7 sanitizes (`+`, backtick, `[`, `]`, `,` → `_`). For example, a v6 saga data type `Sc.OrderSaga+Data` lived in collection `Sc.OrderSaga+Data`; under v7 the same type uses `Sc.OrderSaga_Data`. + +```javascript +db.runCommand({ + renameCollection: ".Sc.OrderSaga+Data", + to: ".Sc.OrderSaga_Data" +}); +``` + +Only generic sagas are affected — non-generic saga data collections keep their names. + +### TLS is on by default + +`TransportSettings.SslEnabled` defaults to `true` in v7 (was `false`). Connections go to AMQPS on port 5671 unless you override: + +```csharp +sc.UseRabbitMQ(t => +{ + t.Host = "rabbit.local"; + t.SslEnabled = false; // local plaintext dev only + // t.SuppressPlaintextWarning = true; // if you want the warning gone too +}); +``` + +A non-loopback plaintext connection now logs a `Warning`. Suppress it explicitly with `SuppressPlaintextWarning` if you've deliberately chosen plaintext (e.g., a VPN-isolated broker). + +### Publisher confirms are on by default + +`PublisherAcknowledgements = true` is the new default. Every publish blocks until the broker has acked the message. This is correct for at-least-once delivery but can shift throughput characteristics if your v6 deployment was implicitly relying on fire-and-forget publishing. + +If you really want fire-and-forget (e.g., for a metrics ingestion path), set `PublisherAcknowledgements = false`. Combining `PublisherAcknowledgements=false` with a finite `PublishTimeout` is now a startup error — pick one. + +### Retry / error publishes use `mandatory:true` + +If your v6 deployment was running with a topology gap (missing exchange or routing key) that silently dropped retry-bound or error-queue-bound messages, those drops will now surface as `PublishException`. Fix the topology before deploy; you have been warned by the message that v6 was eating. + +### Exchange-name hash changed for shared brokers + +The exchange name for a published message used to embed the assembly-qualified `Type.AssemblyQualifiedName` hash; v7 derives it from `type.FullName` with the namespace dots removed (`type.FullName.Replace(".", string.Empty)`) — no hash and no assembly metadata, so the exchange name is stable across assembly-version bumps and matches the wire format of the deployed C# `master` services. + +The practical consequence: **v6 and v7 services publishing the same message type on the same broker will use different exchange names**. During rollout, expect both exchanges to exist until you have fully migrated. Bridge the two with a manual exchange-to-exchange binding if you need v6 publishers to be visible to v7 consumers (or vice versa) during the transition. + +### Reserved-header trust boundary + +Several headers are now server-authoritative — v7 stamps them on outbound and ignores caller-supplied values on inbound. The reserved set: `DestinationAddress`, `MessageId`, `MessageType`, `TypeName`, `FullTypeName`. + +If any of your code paths today rely on injecting one of these headers on inbound (e.g., a custom router that forges `DestinationAddress` to reroute), it will silently break — your forged header is dropped and the framework's own value takes effect. The right replacement is a custom send-message middleware that stamps an *application* header instead of one of the reserved names. + +Reply routing also no longer falls back to `Type.GetType(callerSuppliedString)` — replies are matched through registered handlers. If you opt in with `BusConfiguration.StrictReplyValidation = true`, the cross-bus fallback (which an external producer aware of the queue name could spoof) is rejected. + +### OTel dashboards filtering legacy attributes + +The telemetry rework moves to OTel semconv 1.x messaging attributes. Two specific filter changes will break dashboards silently: + +- `messaging.operation` (the pre-1.x string attribute) is **no longer emitted**. Replace dashboard filters with `messaging.operation.type` (`publish` / `process`) and `messaging.operation.name` (`publish` / `process`). +- `messaging.destination.name` no longer carries the CLR type's `FullName` — it now carries the broker exchange or routing key. Anything filtering on `messaging.destination.name = "MyCompany.Domain.OrderPlaced"` should switch to the new attribute, or filter on the broker-level value instead. + +There's also only one `ActivitySource` now: `"ServiceConnect.Telemetry.Bus"`. OTel listeners that subscribed to the three pre-v7 sources should collapse to a single `AddSource("ServiceConnect.Telemetry.Bus")` call. + +### Mongo driver bumped to 3.x + +`MongoDB.Driver` went from 2.23.1 to 3.8.0. The bundled persistor handles `GuidRepresentationMode = V3` and the `RenderArgs` shape transparently — but if your application code uses `MongoDB.Driver` types directly (custom serializers, `IMongoCollection` callers, etc.), you need to follow [MongoDB's official 2.x → 3.x migration guide](https://www.mongodb.com/docs/drivers/csharp/v3.0/upgrade/) for that code. + +The MongoDB persistor also gained startup guards that will throw at process start (not at first write) if your setup is mis-configured: + +- `WriteConcern.Unacknowledged` (`w:0`) on the configured `MongoClient` is rejected. Use `W1` or higher. +- A conflicting `Guid` serializer registered before ServiceConnect starts is rejected. Either skip the prior registration or align on `GuidRepresentation.Standard`. + +### In-memory persistence no longer expires after 2 days + +If your tests previously relied on `InMemory` persistence dropping state after 2 days as a passive cleanup mechanism, that's gone — state lives for the lifetime of the persistor instance, and the persistor is now `IDisposable`. Test cleanup is your responsibility. + +## Verifying the upgrade + +Once your code compiles and your config is wired: + +1. **Run the SerializationCompatTests project against your domain payloads.** It catches the most common silent serializer surprises before they hit production. +2. **Run a representative subset of `examples/` against your broker.** They double as smoke tests — Aggregator, ProcessManager, RequestReply, RoutingSlip, and Streaming cover the most lifecycle-sensitive paths. +3. **Add the new health checks** and probe them through your existing platform's liveness/readiness mechanism. Set the `recoveryGraceWindow` to a value that matches your broker's recovery characteristics (default 30s suits most deployments; cluster failover may need longer). +4. **Sanity-check your OTel pipeline.** Confirm the dashboards you rely on still light up under the new attribute names and the single `ServiceConnect.Telemetry.Bus` source. +5. **Watch `PublishException` counts during the first deploy.** A surge points at a topology gap that v6 was silently swallowing — fix the topology, don't suppress the exception. + +For the full inventory of changes (including every breaking change, new feature, and hardening fix), see [the v7 release notes](/releases/#v7). diff --git a/website/src/content/docs/reference/bus/add-serviceconnect.mdx b/website/src/content/docs/reference/bus/add-serviceconnect.mdx new file mode 100644 index 000000000..03444da5f --- /dev/null +++ b/website/src/content/docs/reference/bus/add-serviceconnect.mdx @@ -0,0 +1,97 @@ +--- +title: AddServiceConnect +description: The DI entry point for ServiceConnect — registers IBus, its configuration, and hosted services with an IServiceCollection. +--- + +import { Aside } from '@astrojs/starlight/components'; + +## Overview + +`AddServiceConnect` is the dependency-injection entry point. Call it once on your `IServiceCollection` during composition; pass a builder delegate that selects a transport (for example `UseRabbitMQ`), configures queues and persistence, and registers pipeline middleware. The method wires up `IBus`, the configuration interfaces, handler registries, message processors, and the hosted services that drive consumption and timeout polling. + +See [Getting Started](/ServiceConnect-CSharp/learn/getting-started/) for a walk-through from zero to a running consumer. + +## Reference + +### `AddServiceConnect` + +```csharp +public static IServiceCollection AddServiceConnect( + this IServiceCollection services, + Action configure); +``` + +Registers the core ServiceConnect services, handler discovery, message processors, and hosted services with `services`, using `configure` to populate transport, queue, persistence, and pipeline settings. + +**Parameters** +- `services` — the service collection to extend. +- `configure` — a callback that receives a `ServiceConnectBuilder`. Chain calls to `UseRabbitMQ`, `ConfigureQueues`, `ConfigurePersistence`, and the typed `Add*Filter` / `Add*Middleware` methods inside it to build up the bus configuration. + +**Returns.** The same `services` instance for chaining. + +**Remarks.** Transport selection is not baked in; pick a transport via extension methods on `ServiceConnectBuilder` (`UseRabbitMQ`, etc.). Handler types are discovered from `builder.ScanAssemblies(...)` when `IBusConfiguration.ScanForMessageHandlers` is true. Calling `AddServiceConnect` more than once on the same `IServiceCollection` throws `InvalidOperationException` — ServiceConnect is single-bus per collection. Consolidate all feature-module registrations into one call, or use a separate `IServiceCollection` per bus instance. + +### Builder methods + +The `ServiceConnectBuilder` passed to `configure` exposes the following helpers in addition to the transport and persistence extensions registered by satellite packages: + +| Method | Purpose | +| ------ | ------- | +| `ScanAssemblies(params Assembly[])` | Restrict handler discovery to a fixed list of assemblies instead of every loaded assembly. Preferred for deterministic startup and tests. | +| `AddRegistration(Action)` | Run an arbitrary registration callback after the core ServiceConnect services have been registered. Use this to swap framework defaults (e.g. a custom `IRequestReplyManager`) or to register your own services that depend on ServiceConnect types. | +| `ConfigureTransport`, `ConfigureQueues`, `ConfigurePersistence`, `ConfigureBus` | Mutate the matching configuration interfaces. Validation runs eagerly inside `ConfigureTransport` (host, retry, shutdown timeouts). Pipeline registrations use the typed builder methods below — there is no public `ConfigurePipeline` callback. | +| `AddOutgoingFilter`, `AddBeforeConsumingFilter`, `AddOnConsumedSuccessfullyFilter`, `AddAfterConsumingFilter` | Register an `IFilter` at the corresponding pipeline stage. Filters short-circuit by returning `FilterAction.Stop`. `OnConsumedSuccessfully` runs only when the dispatcher chain completed cleanly (`Success = true` and `NotHandled = false`); use it for at-most-once side effects that depend on the handler having succeeded. | +| `AddSendMessageMiddleware`, `AddMessageProcessingMiddleware` | Append middleware around outgoing sends/publishes and incoming consume respectively. Middleware composes via `await next()` and unwinds in reverse registration order. | +| `InsertSendMessageMiddlewareOutermost`, `InsertMessageProcessingMiddlewareOutermost` | Insert middleware at position 0 (outermost) of the matching pipeline. Use for cross-cutting concerns that must bracket every other layer (tracing, metrics). De-duplicates by middleware type — a repeat call with the same `T` is a no-op rather than producing two registrations, so `builder.AddTelemetry()` is safe to call from two feature modules. | + + + +## Usage + +### Minimal: RabbitMQ transport only + +```csharp +services.AddServiceConnect(b => + b.UseRabbitMQ(t => t.Host = "localhost")); +``` + +This is enough for a producer-only service: it registers `IBus`, the RabbitMQ producer and consumer, and the hosted services. Handlers discovered in the app-domain assemblies are registered as transient. With no persistence registered, process-manager timeouts are unavailable; leave `IBusConfiguration.EnableProcessManagerTimeouts` off. + +### With MongoDB-backed persistence for process managers and timeouts + +```csharp +services.AddServiceConnect(b => +{ + b.UseRabbitMQ(t => + { + t.Host = "rabbitmq.internal"; + t.Username = "shipping-service"; + t.Password = "…"; + }); + + b.UseMongoDbPersistence(opts => + { + opts.ConnectionString = "mongodb://mongo.internal:27017"; + opts.DatabaseName = "shipping"; + }); + + b.ConfigureQueues(q => q.QueueName = "shipping-service"); + + b.ConfigureBus(bus => + { + bus.EnableProcessManagerTimeouts = true; + bus.ProcessManagerTimeoutPollInterval = TimeSpan.FromSeconds(5); + }); +}); +``` + +`UseMongoDbPersistence` registers `IProcessManagerFinder`, `IAggregatorPersistor`, and `ITimeoutStore` against a single shared `IMongoClient`. Combined with `EnableProcessManagerTimeouts`, this wires up the full `ShippingSaga` story: state persisted in Mongo, timeouts polled from Mongo, and deliveries round-tripped through RabbitMQ back to the saga's queue. + +## See also + +- [Getting Started](/ServiceConnect-CSharp/learn/getting-started/) — concept +- [The Bus](/ServiceConnect-CSharp/learn/core-concepts/the-bus/) — concept +- [`IBusConfiguration`](../ibusconfiguration/) — related reference +- [`IBus`](../ibus/) — related reference diff --git a/website/src/content/docs/reference/bus/ibus.mdx b/website/src/content/docs/reference/bus/ibus.mdx new file mode 100644 index 000000000..cc5e4a786 --- /dev/null +++ b/website/src/content/docs/reference/bus/ibus.mdx @@ -0,0 +1,416 @@ +--- +title: IBus +description: The runtime message bus — publish, send, request/reply, routing slip, streams, and consumer lifecycle. +--- + +import { Aside } from '@astrojs/starlight/components'; + +## Overview + +`IBus` is the runtime surface for moving messages. A handler, service, or controller resolves `IBus` from DI and uses it to publish domain events, send commands to a known endpoint, issue a request and await a reply, route a message through a list of destinations, stream a large payload, schedule a process-manager timeout, and start or stop message consumption. You configure it via [`AddServiceConnect`](../add-serviceconnect/); you use it by resolving the interface. + +See [The Bus](/ServiceConnect-CSharp/learn/core-concepts/the-bus/) for the conceptual tour. + +## Reference + +### `PublishAsync` + +```csharp +Task PublishAsync( + T message, + PublishOptions? options = null, + CancellationToken cancellationToken = default) + where T : Message; +``` + +Broadcasts a message to every subscriber of the message type. Use for domain events that any number of interested services may consume. + +**Parameters** +- `message` — the event instance to publish; must derive from `Message`. +- `options` — optional headers and a routing-key override (`PublishOptions`). +- `cancellationToken` — cancels the publish before the broker acknowledges. + +**Throws** +- `ArgumentNullException` — `message` is `null`. +- `ObjectDisposedException` — the bus has been disposed. +- `OutgoingFiltersBlockedException` — an outgoing filter returned `FilterAction.Stop` before the message reached the transport. + +**Remarks.** Publish is fire-and-forget from the publisher's perspective; it completes once the broker accepts the message, not when subscribers process it. There is no built-in guarantee that any subscriber exists. + +--- + +### `SendAsync` + +```csharp +Task SendAsync( + T message, + SendOptions? options = null, + CancellationToken cancellationToken = default) + where T : Message; +``` + +Sends a message to a specific endpoint or to the queue resolved from the configured queue mappings. Use for commands with a single owner. + +**Parameters** +- `message` — the command instance; must derive from `Message`. +- `options` — an optional destination endpoint override and headers (`SendOptions`). +- `cancellationToken` — cancels the send before the broker acknowledges. + +**Throws** +- `ArgumentNullException` — `message` is `null`. +- `ObjectDisposedException` — the bus has been disposed. +- `OutgoingFiltersBlockedException` — an outgoing filter returned `FilterAction.Stop` before the message reached the transport. + +**Remarks.** If no destination is supplied via `options` and no queue mapping is registered for the message type, the call throws. + + + +--- + +### `SendToManyAsync` + +```csharp +Task SendToManyAsync( + T message, + IReadOnlyList endPoints, + SendOptions? options = null, + CancellationToken cancellationToken = default) + where T : Message; +``` + +Sends `message` to every endpoint in `endPoints` as an independent point-to-point delivery. Fan-out is an explicit per-call list rather than a property on `SendOptions`. + +**Parameters** +- `message` — the command instance; must derive from `Message`. +- `endPoints` — the destination queue names to send to. Must be non-null and non-empty; each entry is forwarded as a single-endpoint send. `SendOptions.EndPoint` (singular) on `options` is ignored — the explicit list always wins. +- `options` — optional headers shared across every delivery in the fan-out. Per-endpoint headers cannot diverge. +- `cancellationToken` — cancels the fan-out mid-flight. The cancellation must come from the caller's token to short-circuit; middleware-internal `OperationCanceledException` with a different token falls through to the per-endpoint failure path. + +**Throws** +- `ArgumentNullException` — `message` or `endPoints` is `null`. +- `ArgumentException` — `endPoints` is empty. +- `OutgoingFiltersBlockedException` — an outgoing filter returned `FilterAction.Stop` before the message reached the transport. +- `AggregateException` — one or more endpoints failed. Inner exceptions are the per-endpoint failures in the order they occurred. If caller cancellation fired after some endpoints had already failed, the `OperationCanceledException` appears at slot 0 of the aggregate so callers can distinguish "cancelled with prior failures" from "cancelled clean". +- `OperationCanceledException` — caller cancelled before any endpoint failed. + +**Remarks.** Each delivery emits its own `SendEventArgs` for telemetry — subscribers correlate fan-out by `CorrelationId`, which is stable across the deliveries. The per-endpoint loop short-circuits on caller cancellation but otherwise runs every endpoint to completion (success or failure) so a single broken endpoint cannot block the rest. + +--- + +### `SendRequestAsync` + +```csharp +Task SendRequestAsync( + TRequest message, + RequestOptions? options = null, + CancellationToken cancellationToken = default) + where TRequest : Message + where TReply : Message; +``` + +Sends a request to a single endpoint and awaits exactly one reply. Use when the caller needs a synchronous-looking answer from a single respondent. + +**Parameters** +- `message` — the request payload; must derive from `Message`. +- `options` — optional timeout, destination override, or correlation hints. +- `cancellationToken` — cancels the wait; the request may still have been delivered. + +**Returns.** The single reply returned by the respondent. + +**Exceptions** + +- `ArgumentNullException` — `message` is `null`. +- `ArgumentOutOfRangeException` — `options.Timeout` is negative (other than `Timeout.Infinite`, the `int` constant `-1`) or zero. +- `ObjectDisposedException` — the bus has been disposed. +- `OutgoingFiltersBlockedException` — an outgoing filter returned `FilterAction.Stop`. +- `RequestSendCancelledException` — the outbound send pipeline cancelled before the request reached the broker. Distinct from caller-token cancellation (`OperationCanceledException`). +- `RequestTimeoutException` — no reply arrived within `options.Timeout`. +- `OperationCanceledException` — the caller's cancellation token fired. + +**Remarks.** If the reply does not arrive before the configured timeout, the task faults. The reply type must derive from `Message`. + +--- + +### `SendRequestMultiAsync` + +```csharp +Task> SendRequestMultiAsync( + TRequest message, + RequestOptions? options = null, + CancellationToken cancellationToken = default) + where TRequest : Message + where TReply : Message; +``` + +Sends a request that may fan out to multiple respondents and collects every reply received before the deadline. Use for scatter-gather over a known endpoint list. + +**Parameters** +- `message` — the request payload; must derive from `Message`. +- `options` — expected reply count and timeout are typically set here. +- `cancellationToken` — cancels the aggregate wait. + +**Returns.** The list of replies that arrived before the timeout or the expected count was reached. + +**Exceptions** + +- `ArgumentNullException` — `message` is `null`. +- `ArgumentOutOfRangeException` — `options.Timeout` is negative (other than `Timeout.Infinite`, the `int` constant `-1`) or zero. +- `ObjectDisposedException` — the bus has been disposed. +- `OutgoingFiltersBlockedException` — an outgoing filter returned `FilterAction.Stop`. +- `RequestSendCancelledException` — the outbound send pipeline cancelled before the request reached the broker. Distinct from caller-token cancellation (`OperationCanceledException`). +- `RequestTimeoutException` — no reply arrived within `options.Timeout`, or fewer than `options.ExpectedReplyCount` replies arrived (when positive). Partials are exposed on `RequestTimeoutException.PartialReplies`. +- `OperationCanceledException` — the caller's cancellation token fired. + +**Remarks.** Returns whatever replies arrived — a partial result is a valid outcome. Inspect the list length against `RequestOptions.ExpectedReplyCount` to decide whether the scatter-gather succeeded. + +--- + +### `PublishRequestAsync` + +```csharp +Task PublishRequestAsync( + TRequest message, + Action onReply, + RequestOptions? options = null, + CancellationToken cancellationToken = default) + where TRequest : Message + where TReply : Message; +``` + +Publishes a request to every subscriber of the request type and invokes `onReply` each time a reply arrives. Use for streaming scatter-gather where replies should be processed as they arrive rather than collected into a list. + +**Parameters** +- `message` — the request payload; must derive from `Message`. +- `onReply` — a delegate invoked for each reply, on a thread-pool thread. +- `options` — expected reply count and timeout. +- `cancellationToken` — stops dispatching replies to the callback. + +**Exceptions** + +- `ArgumentNullException` — `message` or `onReply` is `null`. +- `ArgumentException` — `options.EndPoint` is non-empty; use `SendRequestAsync` for single-destination requests. +- `ArgumentOutOfRangeException` — `options.Timeout` is negative (other than `Timeout.Infinite`, the `int` constant `-1`) or zero. +- `ObjectDisposedException` — the bus has been disposed. +- `OutgoingFiltersBlockedException` — an outgoing filter returned `FilterAction.Stop`. +- `RequestTimeoutException` — no replies arrived within `options.Timeout`, or fewer than `options.ExpectedReplyCount` replies arrived. +- `OperationCanceledException` — the caller's cancellation token fired, or an `onReply` invocation threw and propagated through the awaited task. + +**Remarks.** The callback is invoked one-at-a-time per request (serialized under an internal lock). Keep it short-lived and non-blocking — heavy work or further bus calls from inside the callback can stall reply processing for the same request. The task completes when the expected reply count is reached or the timeout elapses. + +--- + +### `RouteAsync` + +```csharp +Task RouteAsync( + T message, + IReadOnlyList destinations, + CancellationToken cancellationToken = default) + where T : Message; +``` + +Starts a routing slip: sends the message to the first destination with a routing-slip header listing the remaining hops. Each handler forwards to the next destination when it completes. + +**Parameters** +- `message` — the payload to route; must derive from `Message`. +- `destinations` — an ordered list of queue names the message should visit. +- `cancellationToken` — cancels the initial send. + +**Throws** +- `ArgumentNullException` — `message` or `destinations` is `null`. +- `ArgumentException` — `destinations` is empty or contains an entry with a comma (the routing-slip separator) or that otherwise fails destination validation. +- `ObjectDisposedException` — the bus has been disposed. +- `OutgoingFiltersBlockedException` — an outgoing filter returned `FilterAction.Stop` before the message reached the transport. + +**Remarks.** Routing-slip forwarding is handled by the consumer side and requires `IBusConfiguration.EnableRoutingSlipProcessing` (the default) to be true on every intermediate service. + + + +--- + +### `CreateStream` + +```csharp +IMessageBusWriteStream CreateStream(string endpoint) where T : Message; +``` + +Opens a write stream for sending a large payload as a sequence of ordered chunks to a single endpoint. + +**Parameters** +- `endpoint` — the queue name to stream to. + +**Returns.** A write stream the caller disposes to signal end-of-stream. + +**Throws** +- `ArgumentException` — `endpoint` is `null` or whitespace. +- `ObjectDisposedException` — the bus has been disposed. +- `InvalidOperationException` — no `IProducer` is registered in the bus's DI graph. + +**Remarks.** Each stream uses its own sequence number; consumers must use the matching `IStreamHandler` to reassemble. Dispose the stream even on failure to release broker resources. + +--- + +### `StartConsumingAsync` + +```csharp +Task StartConsumingAsync(CancellationToken cancellationToken = default); +``` + +Starts consuming messages from the bus's configured queue. The hosted service calls this automatically when `IBusConfiguration.AutoStartConsuming` is true; call it yourself when you have disabled auto-start. + +**Parameters** +- `cancellationToken` — cancels the startup handshake. + +**Remarks.** Throws `InvalidOperationException` if the bus is already consuming or has previously been stopped. + +--- + +### `StopConsumingAsync` + +```csharp +Task StopConsumingAsync(CancellationToken cancellationToken = default); +``` + +Stops the consumer loop and disposes the underlying consumer connection. + +**Parameters** +- `cancellationToken` — bounds the graceful-shutdown wait. + + + +--- + +### `IsConsuming` + +```csharp +bool IsConsuming { get; } +``` + +Indicates whether the bus is currently consuming messages. Useful in health checks and tests that must wait for the consumer to become ready. + +Returns `false` before `StartConsumingAsync` has been called and after `StopConsumingAsync` returns. It also returns `false` when the broker has cancelled the consumer (queue deleted, policy expired, mirror promoted) — the underlying transport surfaces AMQP's `basic.cancel` event and ServiceConnect propagates it through this property. Callers using `IsConsuming` for purposes other than health-checking should be aware of the broker-cancel case. + +--- + +### `IsCancelledByBroker` + +```csharp +bool IsCancelledByBroker { get; } +``` + +Indicates whether the broker has cancelled the consumer — typically because the queue was deleted, a policy expired, or a mirror was promoted. This is a permanent broker-side failure distinct from a transient connection flap. + +The property mirrors the underlying `IConsumer.IsCancelledByBroker` flag at the bus level so callers such as `BusConsumingHealthCheck` can distinguish a broker-initiated cancellation (`basic.cancel`) from a network reconnect that may self-heal. The default interface-method implementation returns `false`; framework-supplied buses override it. + +--- + +### `IsStopped` + +```csharp +bool IsStopped { get; } +``` + +Indicates whether the bus has been stopped or is in the process of being disposed. + +Distinct from `IsConsuming`: `IsConsuming` also flips to `false` during a transient broker disconnect that the health check's recovery-grace window may absorb, whereas `IsStopped` flips to `true` permanently once `StopConsumingAsync` or `DisposeAsync` has run. `BusConsumingHealthCheck` uses this flag to bypass its grace window and report `Unhealthy` immediately on intentional shutdown. The default interface-method implementation returns `false`; framework-supplied buses override it. + +--- + +### `RequestTimeoutAsync` + +```csharp +Task RequestTimeoutAsync( + Guid correlationId, + TimeSpan delay, + CancellationToken cancellationToken = default); +``` + +Schedules a `TimeoutMessage` to be delivered back to the current bus's queue after `delay`. The delivered message's `CorrelationId` equals the supplied `correlationId`, which is the standard key a process manager uses to correlate a timeout with its saga instance. + +**Parameters** +- `correlationId` — the correlation id stamped on the delivered `TimeoutMessage`. +- `delay` — how long to wait before delivery. +- `cancellationToken` — cancels the scheduling call, not the timeout itself. + +**Throws** +- `ArgumentException` — `correlationId` is `Guid.Empty`. +- `ArgumentOutOfRangeException` — `delay` is less than or equal to `TimeSpan.Zero`. +- `InvalidOperationException` — no `ITimeoutStore` is registered (first-party Bus only; see the Aside below for the default-interface-method path). +- `NotSupportedException` — the bus implementation does not support scheduling timeouts; the default-interface-method path defers it into the returned task rather than throwing synchronously (see the Aside below). +- `ObjectDisposedException` — the bus has been disposed. + + + +## Usage + +### Publishing a domain event + +```csharp +public sealed class OrderService +{ + private readonly IBus _bus; + + public OrderService(IBus bus) => _bus = bus; + + public async Task PlaceOrderAsync(PlaceOrder command, CancellationToken cancellationToken) + { + // … persist the order, charge the card, etc. … + + await _bus.PublishAsync( + new OrderPlaced(command.CorrelationId) + { + OrderId = command.OrderId, + CustomerId = command.CustomerId, + Total = command.Total + }, + cancellationToken: cancellationToken); + } +} +``` + +`OrderPlaced` is a domain event; any number of downstream services (shipping, invoicing, analytics) may subscribe. The publisher does not know or care who listens, and does not wait for subscribers to process the message. + +### Request/reply with a single respondent + +```csharp +public sealed class ShippingSaga : IProcessHandler +{ + public async Task HandleAsync( + OrderPlaced @event, + ShippingState data, + IConsumeContext context, + CancellationToken cancellationToken = default) + { + var quote = await context.Bus.SendRequestAsync( + new QuoteShipping(@event.CorrelationId) + { + OrderId = @event.OrderId, + Destination = @event.ShippingAddress + }, + cancellationToken: cancellationToken); + + data.QuotedCost = quote.Cost; + data.CarrierCode = quote.CarrierCode; + } +} +``` + +Use `SendRequestAsync` when there is exactly one respondent and the caller needs the reply in-line. The await will fault if the reply does not arrive within `RequestOptions.Timeout`, so set a timeout that matches the respondent's worst-case latency and let the saga compensate via a timeout handler when it trips. + +## See also + +- [The Bus](/ServiceConnect-CSharp/learn/core-concepts/the-bus/) — concept +- [Pub/Sub](/ServiceConnect-CSharp/learn/messaging-patterns/pub-sub/) — concept +- [Request/Reply](/ServiceConnect-CSharp/learn/messaging-patterns/request-reply/) — concept +- [`IBusConfiguration`](../ibusconfiguration/) — related reference +- [`AddServiceConnect`](../add-serviceconnect/) — related reference diff --git a/website/src/content/docs/reference/bus/ibusconfiguration.mdx b/website/src/content/docs/reference/bus/ibusconfiguration.mdx new file mode 100644 index 000000000..e10f6bc04 --- /dev/null +++ b/website/src/content/docs/reference/bus/ibusconfiguration.mdx @@ -0,0 +1,271 @@ +--- +title: IBusConfiguration +description: The aggregate configuration surface for the ServiceConnect bus — runtime behaviour plus transport, queue, persistence, and pipeline sub-configurations. +--- + +import { Aside } from '@astrojs/starlight/components'; + +## Overview + +`IBusConfiguration` is the bus-wide configuration surface. It holds the knobs that govern handler discovery, consumer concurrency, process-manager timeouts, reply validation, and routing-slip processing. It is exposed through the builder delegate passed to [`AddServiceConnect`](../add-serviceconnect/) — you mutate it via `builder.ConfigureBus(b => …)` and via the sub-configuration helpers that wrap transport, queues, persistence, and pipeline. + +See [Configuration](/ServiceConnect-CSharp/learn/operations/configuration/) for the bigger picture. + +## Reference + +### `ScanForMessageHandlers` + +```csharp +bool ScanForMessageHandlers { get; set; } +``` + +Controls whether `AddServiceConnect` scans the configured assemblies for message-handler types. When false, handlers must be registered explicitly. + +**Remarks.** Defaults to scanning the assemblies supplied via `ServiceConnectBuilder.ScanAssemblies(...)`, or the current app domain if none were supplied. Explicit registration is preferred for deterministic, testable startup. + +--- + +### `AutoStartConsuming` + +```csharp +bool AutoStartConsuming { get; set; } +``` + +Controls whether the hosted service calls `IBus.StartConsumingAsync` automatically when the host starts. Disable when your process produces messages but does not consume any, or when tests need to start consumption manually. + +--- + +### `EnableProcessManagerTimeouts` + +```csharp +bool EnableProcessManagerTimeouts { get; set; } +``` + +Controls whether the timeout-polling hosted service dispatches scheduled `TimeoutMessage` deliveries for process managers. + +**Remarks.** Requires an `ITimeoutStore` registration (for example via `UseMongoDbPersistence`) to do useful work. With the flag set but no store registered, the polling hosted service logs a `Warning` at start-up and exits its poll loop — no exception is thrown, but no timeouts will be dispatched. + +--- + +### `ProcessManagerTimeoutPollInterval` + +```csharp +TimeSpan ProcessManagerTimeoutPollInterval { get; set; } +``` + +Sets how often the timeout-polling hosted service scans the timeout store for due timeouts. + +**Remarks.** Shorter intervals reduce latency between scheduled delivery and actual delivery at the cost of more database round-trips. A few seconds is typical. **Default:** 30 seconds. + +--- + +### `ConsumerCount` + +```csharp +int ConsumerCount { get; set; } +``` + +Sets the number of consumer loops that run in parallel against the configured queue. + +**Remarks.** Higher values improve throughput for handlers that spend time in I/O; they do not improve throughput for CPU-bound handlers and increase memory footprint per consumer. **Default:** 1. + +--- + +### `ExceptionHandler` + +```csharp +Func? ExceptionHandler { get; set; } +``` + +Sets an async callback invoked when handler processing throws. Use for push-based telemetry or alerting that sits outside the normal logging pipeline. + +**Remarks.** If the callback itself throws, the exception is caught and logged at `Error` level by the dispatcher; a flaky notification hook cannot block message processing. For structured observability, prefer the pipeline's middleware and filters. The `CancellationToken` parameter is the consumer-loop token; observe it if the callback performs async I/O. + +#### Synchronous callback + +Wrap a synchronous side-effect with a completed `ValueTask`: + +```csharp +cfg.ExceptionHandler = (ex, _) => { Log.Error(ex); return ValueTask.CompletedTask; }; +``` + +If the callback performs async work, await it and propagate the token: + +```csharp +cfg.ExceptionHandler = async (ex, ct) => await _alerting.PushAsync(ex, ct); +``` + +--- + +### `IncludeMachineNameInHeaders` + +```csharp +bool IncludeMachineNameInHeaders { get; set; } +``` + +When true, stamps `Environment.MachineName` into outgoing `SourceMachine` and incoming `DestinationMachine` headers. + +**Remarks.** Defaults to false. Leaking an internal hostname to broker audit consumers is information disclosure in shared-broker deployments. + + + +--- + +### `ValidateReplyDestinations` + +```csharp +bool ValidateReplyDestinations { get; set; } +``` + +When true, `IConsumeContext.ReplyAsync` validates that the incoming `SourceAddress` header points to a queue known from `IQueueConfiguration.QueueMappings`, `QueueName`, `ErrorQueueName`, or `AuditQueueName`. Set to false to allow replies to arbitrary queue names. + +**Remarks.** Defaults to true. Leaving it enabled prevents a compromised or misbehaving upstream from coercing your service into replying to an attacker-controlled queue. + +--- + +### `EnableRoutingSlipProcessing` + +```csharp +bool EnableRoutingSlipProcessing { get; set; } +``` + +When true, the handler processor forwards messages along the destinations listed in the `RoutingSlip` header after each hop's handler completes. When false, routing-slip headers are silently ignored. + +**Remarks.** Defaults to true. Destinations are validated by format only (non-null, non-empty, no embedded commas); cross-service destinations are permitted without any local queue registration. + +--- + +### `DeadLetterUnhandledMessages` + +```csharp +bool DeadLetterUnhandledMessages { get; set; } +``` + +When true, messages that the dispatcher runs to completion on but which no processor claims — see [`ConsumeEventResult.NotHandled`](../../handlers/event-args/#nothandled) — are published to the error exchange instead of silently acked. + +**Remarks.** Defaults to false, preserving historical behaviour where unhandled messages are logged and acked. Enable when a handler-less message should be treated as a terminal failure for operator visibility. + +--- + +### `StrictReplyValidation` + +```csharp +bool StrictReplyValidation { get; set; } +``` + +When `true`, only locally-tracked request-reply exchanges are trusted as reply destinations; the header-based fallback that allows cross-bus callers to be recognised is disabled. When `false` (the default), any inbound message whose headers match the cross-bus heuristic — a non-empty `RequestMessageId`, a `SourceAddress`, a `MessageId`, no `ResponseMessageId`, and `DestinationAddress` equal to this queue — is also trusted as a request envelope. + +**Remarks.** Defaults to false, preserving backward compatibility with cross-bus request-reply where a request originated on a different bus instance and the local `RequestReplyManager` has no record of it. The header-based fallback can be spoofed by any external producer that knows the queue name. Set to `true` when the service does not participate in cross-bus request-reply, or when all upstream callers are verified to route through a tracked `RequestReplyManager`. + +--- + +### `MaxRoutingSlipHops` + +```csharp +int MaxRoutingSlipHops { get; set; } +``` + +Caps the number of destinations the routing-slip processor will forward a message through before rejecting the slip. Defaults to **32**. + +**Remarks.** If the inbound slip carries more than this many destinations, the handler throws `InvalidOperationException` and the message follows the standard error path (retries → error queue). A misbehaving handler that re-prepends destinations could otherwise loop a message indefinitely. The cap is intentionally generous — typical routing slips have 3–6 hops; the limit catches accidents without constraining legitimate patterns. + +--- + +### `DisposeTimeout` + +```csharp +TimeSpan DisposeTimeout { get; set; } +``` + +The maximum time `IBus.DisposeAsync` waits for the lifecycle semaphore before proceeding with teardown anyway. Guards against a wedged `StartConsumingAsync` (e.g., broker partition during handshake) that would otherwise block container shutdown. Defaults to **30 seconds**. + +**Remarks.** Set via the builder's `ConfigureBus` callback (`bus.DisposeTimeout = ...`); the value is frozen at startup. Must be a strictly positive `TimeSpan`, or `Timeout.InfiniteTimeSpan` to wait indefinitely; zero or negative values are rejected at startup. + +--- + +### `MaxInflightRequests` + +```csharp +int MaxInflightRequests { get; set; } +``` + +Caps the number of concurrent request-reply exchanges the `RequestReplyManager` will track before rejecting new `SendRequestAsync` / `SendRequestMultiAsync` / `PublishRequestAsync` calls with `InvalidOperationException`. Defaults to **10,000**. + +**Remarks.** Each in-flight request pins a `Timer`, a `CancellationTokenSource`, a `TaskCompletionSource`, and a cancellation registration closure. The cap defends against unbounded memory growth from `Timeout.Infinite` callers that never wake up and from hot loops of unawaited requests. Raise for genuine high-concurrency request-fan workloads (parallel saga calls, fan-out aggregations); lower to harden against caller bugs in tight-budget hosts. Startup throws if a non-positive value is configured. + +--- + +### `MaxStreamSizeBytes` + +```csharp +long MaxStreamSizeBytes { get; set; } +``` + +Caps the cumulative byte count a single inbound stream may reassemble before `MessageBusReadStream.Write` throws `InvalidOperationException`. Defaults to **100 MB** (104,857,600 bytes). + +**Remarks.** Every admitted stream pins a `ConcurrentDictionary` and a running total — without a ceiling, a hostile or buggy producer that never closes its stream would drive unbounded heap growth on the receiver. Raise for deployments that legitimately stream large artefacts (file uploads, ML model weights, image batches); lower to harden memory-constrained hosts where 100 MB per concurrent stream is too generous. Startup throws if a non-positive value is configured. + +--- + +### `MaxActiveStreams` + +```csharp +int MaxActiveStreams { get; set; } +``` + +Caps the number of concurrently-tracked partial inbound streams `StreamProcessor` will admit before rejecting new sequences (warning log + drop). Defaults to **1,000**. + +**Remarks.** Each admitted stream holds a `MessageBusReadStream` instance, a packet dictionary, and a per-sequence record in the processor's active-stream map until completion, eviction, or fault. Without a slot ceiling, a producer (hostile or buggy) that opens streams without ever completing them would drive unbounded growth on the receiver. Raise for high-concurrency file-transfer workloads where 1,000 simultaneous in-flight reassemblies is too tight; lower to harden memory-constrained hosts. Snapshotted into the processor at construction — the configuration is frozen by the time the processor resolves from DI, so changes after `AddServiceConnect` returns are rejected. Startup throws if a non-positive value is configured. + +--- + +### `AllowMissingProducer` + +```csharp +bool AllowMissingProducer { get; set; } +``` + +When `false` (the default), `BusHostedService.StartAsync` throws `InvalidOperationException` at host start if no `IProducer` has been registered, surfacing a missing transport at host build time rather than at the first publish, send, or `CreateStream` call. + +**Remarks.** Defaults to false. Set to `true` only in tests or specialised in-memory scenarios that legitimately operate without a producer — for example, consume-only buses that never publish or send. + +## Usage + +### Configuring a RabbitMQ bus with a named queue + +```csharp +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(transport => + { + transport.Host = "rabbitmq.internal"; + transport.Username = "order-service"; + transport.Password = "…"; + }); + + builder.ConfigureQueues(queues => + { + queues.QueueName = "order-service"; + queues.ErrorQueueName = "order-service.errors"; + }); + + builder.ConfigureBus(bus => + { + bus.ConsumerCount = 4; + bus.AutoStartConsuming = true; + bus.EnableProcessManagerTimeouts = false; + }); +}); +``` + +This wires the `OrderService` process up to consume from its own queue on a shared RabbitMQ broker. Four parallel consumer loops give handlers headroom while keeping the memory footprint modest, and timeouts are left disabled because this service has no sagas that schedule them. + +## See also + +- [Configuration](/ServiceConnect-CSharp/learn/operations/configuration/) — concept +- [`ITransportConfiguration`](../../configuration/itransportconfiguration/) — related reference +- [`IQueueConfiguration`](../../configuration/iqueueconfiguration/) — related reference +- [`IPersistenceConfiguration`](../../configuration/ipersistenceconfiguration/) — related reference +- [`IPipelineConfiguration`](../../configuration/ipipelineconfiguration/) — related reference diff --git a/website/src/content/docs/reference/configuration/ipersistenceconfiguration.mdx b/website/src/content/docs/reference/configuration/ipersistenceconfiguration.mdx new file mode 100644 index 000000000..5c4cdb87d --- /dev/null +++ b/website/src/content/docs/reference/configuration/ipersistenceconfiguration.mdx @@ -0,0 +1,228 @@ +--- +title: IPersistenceConfiguration +description: Persistence settings shared by process managers, aggregators, and timeouts. +--- + +import { Aside } from '@astrojs/starlight/components'; + +## Overview + +`IPersistenceConfiguration` exposes the provider-agnostic persistence settings used by process managers, aggregators, and the timeout store. It is reached via `builder.ConfigurePersistence(p => ...)` and is typically populated as a side-effect of the provider extension method you call — `UseInMemoryPersistence()` for tests and local development, `UseMongoDbPersistence(...)` for production. Both providers ship in the box. + +See [Process Manager](/ServiceConnect-CSharp/learn/messaging-patterns/process-manager/) for the higher-level picture of what persistence stores are storing. + +## Reference + +### `ConnectionString` + +```csharp +string ConnectionString { get; set; } +``` + +Gets or sets the provider-specific connection string. + +**Default:** `""` (empty string). + +**Remarks.** Only meaningful for providers that connect to an external store (MongoDB). The in-memory provider ignores it. + +--- + +### `DatabaseName` + +```csharp +string DatabaseName { get; set; } +``` + +Gets or sets the database or logical store name. + +**Default:** `"RMessageBusPersistentStore"`. + +**Remarks.** MongoDB uses this as the database name. The in-memory provider ignores it. + +--- + +### `AggregatorCollectionName` + +```csharp +string AggregatorCollectionName { get; set; } +``` + +Gets or sets the collection or container name used for aggregator state. + +**Default:** `"Aggregator"`. + +**Remarks.** MongoDB uses this as the collection name for aggregator snapshots. The in-memory provider ignores it. + +## ICacheProvider and IKeyValueStore + +`UseInMemoryPersistence()` also registers two secondary interfaces for application code that wants an in-process cache: `ICacheProvider` (full-featured, with expiry, sliding TTL, and priority) and `IKeyValueStore` (simpler, offset-expiry add/get/remove). Both resolve to the same underlying `CacheProvider` singleton wired to `InMemoryPersistenceState.Provider`. + +### `TryGet` + +Both interfaces expose `TryGet(key, out value)` for cache reads — the `bool` return distinguishes "key present" from "key absent", which a `Get` overload returning `default!` could not. + +```csharp +if (cache.TryGet(key, out var value)) +{ + // key was present; value may still be null for reference-type TValue +} +else +{ + // key was absent +} +``` + +For value-type `TValue` (for example `int`), the out-parameter receives `default(T)` on miss (for example `0`); only the `bool` return distinguishes presence from absence. + +--- + +## Usage + +### Development: in-memory persistence + +```csharp +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(transport => + { + transport.Host = "localhost"; + transport.Username = "guest"; + transport.Password = "guest"; + }); + + builder.ConfigureQueues(queues => queues.QueueName = "order-service"); + + builder.UseInMemoryPersistence(); + + builder.ConfigureBus(bus => bus.EnableProcessManagerTimeouts = true); +}); +``` + +`UseInMemoryPersistence()` wires up `IProcessManagerFinder`, `ITimeoutStore`, and `IAggregatorPersistor` against a single in-process state object. Nothing survives an app restart — ideal for tests and developer machines, never for production. + + + +### Production: MongoDB with a named database + +```csharp +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(transport => + { + transport.Host = "rabbit.internal.example"; + transport.Username = "order-service"; + transport.Password = Environment.GetEnvironmentVariable("ORDER_RABBIT_PASSWORD"); + }); + + builder.ConfigureQueues(queues => + { + queues.QueueName = "order-service"; + queues.ErrorQueueName = "order-service.dlq"; + }); + + builder.UseMongoDbPersistence(options => + { + options.ConnectionString = Environment.GetEnvironmentVariable("ORDER_MONGO_URI"); + options.DatabaseName = "OrderService"; + }); + + builder.ConfigureBus(bus => + { + bus.EnableProcessManagerTimeouts = true; + bus.ProcessManagerTimeoutPollInterval = TimeSpan.FromSeconds(5); + }); +}); +``` + +`UseMongoDbPersistence(...)` registers `MongoDbProcessManagerFinder`, `MongoDbTimeoutStore`, and `MongoDbAggregatorPersistor` against a single shared `IMongoClient`. The `OrderService` database holds the `ShippingSaga` state documents alongside the timeout collection; the poll interval controls how quickly scheduled `TimeoutMessage` deliveries fire. + +## Provider options + +### `InMemoryPersistenceOptions` + +| Property | Type | Default | Description | +| --- | --- | --- | --- | +| `LockLeaseDuration` | `TimeSpan` | `TimeSpan.FromMinutes(5)` | Lease duration applied when claiming a timeout for dispatch. Mirrors `MongoDbPersistenceOptions.TimeoutLockLeaseDuration`. Must be positive. | + +Configure via the `UseInMemoryPersistence` extension's optional `configure` delegate: + +```csharp +services.AddServiceConnect(builder => +{ + builder.UseInMemoryPersistence(o => o.LockLeaseDuration = TimeSpan.FromSeconds(30)); +}); +``` + +Or register an instance directly before calling `UseInMemoryPersistence` (the extension's `TryAddSingleton` call will skip registration if the instance is already present): + +```csharp +services.AddSingleton(new InMemoryPersistenceOptions { LockLeaseDuration = TimeSpan.FromSeconds(30) }); +services.AddServiceConnect(builder => +{ + builder.UseInMemoryPersistence(); +}); +``` + +### `MongoDbPersistenceOptions` + +| Property | Type | Default | Description | +| --- | --- | --- | --- | +| `ConnectionString` | `string` | `""` | MongoDB connection URI. Required for production deployments. | +| `DatabaseName` | `string` | `""` | Database name for process manager, aggregator, and timeout collections. | +| `TimeoutLockLeaseDuration` | `TimeSpan` | `TimeSpan.FromMinutes(5)` | Lease duration applied when claiming a timeout row for dispatch. See [Timeout lease semantics](../../extension-points/persistence/itimeoutstore/#lease-semantics). | +| `TimeoutBatchSize` | `int` | `100` | Maximum number of due timeout rows returned by a single `GetTimeoutsBatchAsync` call. | + +Configure via the `UseMongoDbPersistence` extension's options delegate: + +```csharp +services.AddServiceConnect(builder => +{ + builder.UseMongoDbPersistence(options => + { + options.ConnectionString = Environment.GetEnvironmentVariable("MONGO_URI"); + options.DatabaseName = "order-service"; + options.TimeoutLockLeaseDuration = TimeSpan.FromMinutes(2); + }); +}); +``` + +## MongoDB provider contract + +The MongoDB provider enforces several requirements at startup. Violating them throws `InvalidOperationException` before any consumer host begins polling, so failures are loud and immediate rather than silent data corruption. + +### WriteConcern requirement + +`MongoDbProcessManagerFinder`, `MongoDbTimeoutStore`, and `MongoDbAggregatorPersistor` each require the `IMongoClient` to be configured with an acknowledged write concern (`w:1` or higher). If the client's `WriteConcern` is `WriteConcern.Unacknowledged` (w:0), construction throws `InvalidOperationException` — fail-fast at startup before any consumer host begins polling. + +```csharp +// Correct — acknowledged writes (default for most connection strings) +var client = new MongoClient("mongodb://localhost:27017"); + +// Incorrect — will throw at startup +var settings = MongoClientSettings.FromConnectionString("mongodb://localhost:27017"); +settings.WriteConcern = WriteConcern.Unacknowledged; +var client = new MongoClient(settings); +``` + +Unacknowledged writes disable the optimistic concurrency version checks that guard against lost saga updates, and silently no-op-succeed lock-aware delete/release operations in `MongoDbTimeoutStore` and `MongoDbAggregatorPersistor` — converting a stale-lease no-op into an apparent successful delete and allowing duplicate timeout dispatch or aggregate dispatch. Rejecting w:0 at startup prevents silent data corruption. + +### Guid representation requirement + +The MongoDB provider registers `GuidRepresentation.Standard` (RFC 4122 byte order) for all Guid serialization. If another component registers a different Guid serializer before `UseMongoDbPersistence` is called, startup throws `InvalidOperationException`. + +To avoid the conflict: either remove your custom Guid serializer registration, or ensure it also uses `GuidRepresentation.Standard` before ServiceConnect registers. Two registrations of `Standard` are accepted; two registrations with different representations are not. + +### Startup-time index pre-creation + +A hosted service (`IHostedService`) runs during `IHost.StartAsync` and pre-creates the unique CorrelationId index for each registered saga data type before any consumer host begins polling. This closes the cross-process startup race that could admit duplicate saga rows when multiple instances start simultaneously. + +The hosted service uses `IProcessManagerTypeRegistry` to enumerate all saga data types registered via `AddProcessManager`. No additional configuration is required; `UseMongoDbPersistence` registers both the hosted service and the registry automatically. + +## See also + +- [Process Manager](/ServiceConnect-CSharp/learn/messaging-patterns/process-manager/) — concept +- [`ITimeoutStore`](../../extension-points/persistence/itimeoutstore/) — timeout dispatch reference +- [`IAggregatorPersistor`](../../extension-points/persistence/iaggregatorpersistor/) — related reference +- [`IProcessManagerFinder`](../../extension-points/persistence/iprocessmanagerfinder/) — related reference diff --git a/website/src/content/docs/reference/configuration/ipipelineconfiguration.mdx b/website/src/content/docs/reference/configuration/ipipelineconfiguration.mdx new file mode 100644 index 000000000..ba4a7e778 --- /dev/null +++ b/website/src/content/docs/reference/configuration/ipipelineconfiguration.mdx @@ -0,0 +1,146 @@ +--- +title: IPipelineConfiguration +description: Registered filter and middleware types that wrap incoming and outgoing messages. +--- + +## Overview + +`IPipelineConfiguration` is the read-only view of the filter and middleware types registered for the consume and send pipelines. It is populated through the `ServiceConnectBuilder` helpers — `AddBeforeConsumingFilter()`, `AddOnConsumedSuccessfullyFilter()`, `AddAfterConsumingFilter()`, `AddOutgoingFilter()`, `AddMessageProcessingMiddleware()`, `AddSendMessageMiddleware()`, `InsertSendMessageMiddlewareOutermost()`, and `InsertMessageProcessingMiddlewareOutermost()` — and exposed so transports and diagnostics can enumerate the configured types without mutating them. + +The concrete `PipelineConfiguration`, like the rest of the `*Configuration` concrete classes (`BusConfiguration`, `TransportConfiguration`, `QueueConfiguration`, `PersistenceConfiguration`), is `internal`. Only the `I*Configuration` interfaces are public — consumer code interacts with them via the builder callbacks (`ConfigureTransport`, `ConfigureQueues`, etc.) or by resolving `IPipelineConfiguration` (or other sub-config interfaces) directly from DI. Constructing a `new PipelineConfiguration()` directly is not supported from outside the framework assembly. + +See [Filters](/ServiceConnect-CSharp/learn/messaging-patterns/filters/) for the conceptual model and for when to reach for a filter over a middleware. + +## Reference + +### `BeforeConsumingFilters` + +```csharp +IReadOnlyList BeforeConsumingFilters { get; } +``` + +Gets the filters that run before handler invocation. + +**Remarks.** Each type must implement `IFilter`. Filters run in registration order; returning `FilterAction.Stop` short-circuits the pipeline and skips the handler. + +--- + +### `AfterConsumingFilters` + +```csharp +IReadOnlyList AfterConsumingFilters { get; } +``` + +Gets the filters that run after handler invocation. + +**Remarks.** Each type must implement `IFilter`. Handy for post-processing concerns such as metrics emission or cleanup. Returning `FilterAction.Stop` from an after-consuming filter suppresses any remaining post-processing stages but does not un-handle the message — the handler has already run and the message will still be acked. + +--- + +### `OnConsumedSuccessfullyFilters` + +```csharp +IReadOnlyList OnConsumedSuccessfullyFilters { get; } +``` + +The filters that run only after a successful handler invocation. The +dispatcher invokes this stage when the chain returned +`ConsumeEventResult.Success = true` and `NotHandled = false` — failures and +unhandled messages skip it. Use for at-most-once side effects (dedup, +outbox, audit) that depend on the handler having completed. + +See [`IFilter.ExecuteOnConsumedSuccessfullyFiltersAsync`](../../filters/ifilter/#executeonconsumedsuccessfullyfiltersasync) for filter-author semantics. + +--- + +### `OutgoingFilters` + +```csharp +IReadOnlyList OutgoingFilters { get; } +``` + +Gets the filters that run on outgoing messages. + +**Remarks.** Each type must implement `IFilter`. Invoked for every publish, send, and reply. + +--- + +### `MessageProcessingMiddleware` + +```csharp +IReadOnlyList MessageProcessingMiddleware { get; } +``` + +Gets the middleware types that wrap message processing. + +**Remarks.** Each type must implement `IMessageProcessingMiddleware`. Middleware is an `await next()` model — preferred over filters when you need to surround the handler with a `try/finally`, a scope, or an activity. + +--- + +### `SendMessageMiddleware` + +```csharp +IReadOnlyList SendMessageMiddleware { get; } +``` + +Gets the middleware types that wrap outgoing send and publish operations. + +**Remarks.** Each type must implement `ISendMessageMiddleware`. + +## Usage + +### Adding a logging filter and an outgoing retry filter + +```csharp +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(transport => + { + transport.Host = "rabbit.internal.example"; + transport.Username = "order-service"; + transport.Password = Environment.GetEnvironmentVariable("ORDER_RABBIT_PASSWORD"); + }); + + builder.ConfigureQueues(queues => queues.QueueName = "order-service"); + + builder.AddBeforeConsumingFilter(); + builder.AddOutgoingFilter(); +}); + +// Filters wired up above. +public sealed class LoggingFilter : IFilter +{ + private readonly ILogger _logger; + + public LoggingFilter(ILogger logger) => _logger = logger; + + public Task ProcessAsync(Envelope envelope, CancellationToken cancellationToken = default) + { + _logger.LogInformation( + "Consuming {MessageType} {MessageId} from {SourceAddress}", + envelope.Headers.GetValueOrDefault("MessageType"), + envelope.Headers.GetValueOrDefault("MessageId"), + envelope.Headers.GetValueOrDefault("SourceAddress")); + return Task.FromResult(FilterAction.Continue); + } +} + +public sealed class OutgoingRetryFilter : IFilter +{ + public Task ProcessAsync(Envelope envelope, CancellationToken cancellationToken = default) + { + envelope.Headers["RetryPolicy"] = "exponential"; + envelope.Headers["RetryBudget"] = "5"; + return Task.FromResult(FilterAction.Continue); + } +} +``` + +`LoggingFilter` sits on the consume side, writing a structured log line for every message the `OrderService` processes before it reaches the handler. `OutgoingRetryFilter` sits on the send side, stamping an explicit retry-policy hint onto every outbound envelope so downstream services can apply a uniform retry strategy. Both types are registered once during startup and resolved per-message from the DI container. + +## See also + +- [Filters](/ServiceConnect-CSharp/learn/messaging-patterns/filters/) — concept +- [`IFilter`](../../filters/ifilter/) — related reference +- [`IMessageProcessingMiddleware`](../../filters/imessageprocessingmiddleware/) — related reference +- [`ISendMessageMiddleware`](../../filters/isendmessagemiddleware/) — related reference diff --git a/website/src/content/docs/reference/configuration/iqueueconfiguration.mdx b/website/src/content/docs/reference/configuration/iqueueconfiguration.mdx new file mode 100644 index 000000000..ce119d1bd --- /dev/null +++ b/website/src/content/docs/reference/configuration/iqueueconfiguration.mdx @@ -0,0 +1,174 @@ +--- +title: IQueueConfiguration +description: Queue-level configuration — queue names, error and audit queues, and explicit message-to-queue routing. +--- + +## Overview + +`IQueueConfiguration` names the queues a service owns and declares the routing table used when `IBus.SendAsync` has to pick a destination for a message type. Configure it through `builder.ConfigureQueues(q => ...)`. It owns the primary inbox, the error queue for terminally failed messages, the audit queue for observability copies, and the explicit per-type mappings that override convention-based discovery. + +See [Endpoints](/ServiceConnect-CSharp/learn/core-concepts/endpoints/) for how queue names map to logical services. + +## Reference + +### `QueueName` + +```csharp +string QueueName { get; set; } +``` + +Gets or sets the primary queue name used by the bus. + +**Remarks.** This is the inbox consumed by `IBus.StartConsumingAsync` and the `SourceAddress` header stamped on outgoing messages. Empty or whitespace-only values are rejected at `AddServiceConnect` time with `InvalidOperationException` — the validation is fail-fast at startup, not at broker connect. + +--- + +### `ErrorQueueName` + +```csharp +string ErrorQueueName { get; set; } +``` + +Gets or sets the queue name used for failed messages. + +**Remarks.** Messages that exhaust `ITransportConfiguration.MaxRetries` are forwarded here for operator attention. A common convention is `.errors` or `.dlq`. + +--- + +### `AuditQueueName` + +```csharp +string AuditQueueName { get; set; } +``` + +Gets or sets the queue name used for audit copies. + +**Remarks.** Only populated when [`AuditingEnabled`](#auditingenabled) is true. Interpreted by RabbitMQ as the target exchange; audit publishes use an empty routing key matching the audit direct exchange binding. + +--- + +### `AuditingEnabled` + +```csharp +bool AuditingEnabled { get; set; } +``` + +Gets or sets a value indicating whether message auditing is enabled. When true, a copy of every processed message is forwarded to [`AuditQueueName`](#auditqueuename). + +--- + +### `DisableErrors` + +```csharp +bool DisableErrors { get; set; } +``` + +Gets or sets a value indicating whether failed messages bypass the error queue. + +**Remarks.** When true, terminally failed messages are discarded rather than copied to [`ErrorQueueName`](#errorqueuename). Only appropriate for throwaway workloads; production deployments should leave this false. + +--- + +### `PurgeQueueOnStartup` + +```csharp +bool PurgeQueueOnStartup { get; set; } +``` + +Gets or sets a value indicating whether the main queue is purged during startup. + +**Remarks.** Useful for disposable test fixtures; destructive in production. + +--- + +### `QueueMappings` + +```csharp +IReadOnlyDictionary> QueueMappings { get; } +``` + +Gets the configured message-to-queue routing table, keyed by assembly-qualified message type name. + +**Remarks.** Populate it via [`AddQueueMapping`](#addqueuemapping); look it up via [`TryGetQueueMapping`](#trygetqueuemapping). + +--- + +### `AddQueueMapping` + +```csharp +void AddQueueMapping(Type messageType, string queue) +``` + +Adds a single queue mapping for the specified message type. + +**Parameters** +- `messageType` — The message type to route. +- `queue` — The destination queue name. + +--- + +### `AddQueueMapping` + +```csharp +void AddQueueMapping(Type messageType, IReadOnlyList queues) +``` + +Adds multiple queue mappings for the specified message type. Used when the same message must be sent to several services (for example the `OrderPlaced` event routed to both `shipping-service` and `invoicing-service`). + +**Parameters** +- `messageType` — The message type to route. +- `queues` — The destination queue names. + +--- + +### `TryGetQueueMapping` + +```csharp +bool TryGetQueueMapping(Type messageType, out IReadOnlyList queues) +``` + +Attempts to resolve the configured queue mappings for a message type. + +**Parameters** +- `messageType` — The message type to look up. +- `queues` — When this method returns, contains the configured queues if a mapping exists. + +**Returns.** `true` when a mapping exists; otherwise `false`. + +## Usage + +### Declaring a durable queue with a dead-letter exchange + +```csharp +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(transport => + { + transport.Host = "rabbit.internal.example"; + transport.Username = "order-service"; + transport.Password = Environment.GetEnvironmentVariable("ORDER_RABBIT_PASSWORD"); + transport.MaxRetries = 5; + transport.RetryDelay = 2_000; + }); + + builder.ConfigureQueues(queues => + { + queues.QueueName = "order-service"; + queues.ErrorQueueName = "order-service.dlq"; + + queues.AuditingEnabled = true; + queues.AuditQueueName = "order-service.audit"; + + queues.AddQueueMapping(typeof(ShipOrderCommand), "shipping-service"); + queues.AddQueueMapping(typeof(ChargeCardCommand), "payment-service"); + }); +}); +``` + +The `order-service` queue is the primary inbox; messages that exhaust their retry budget land in `order-service.dlq` for an operator to inspect. Auditing is on for traceability — every processed message is copied to `order-service.audit`. Outbound `ShipOrderCommand` and `ChargeCardCommand` sends are routed to their owning services by the explicit mappings, regardless of any convention-based routing the registry would otherwise apply. + +## See also + +- [Endpoints](/ServiceConnect-CSharp/learn/core-concepts/endpoints/) — concept +- [`ITransportConfiguration`](../itransportconfiguration/) — related reference +- [`IBusConfiguration`](../../bus/ibusconfiguration/) — related reference diff --git a/website/src/content/docs/reference/configuration/itransportconfiguration.mdx b/website/src/content/docs/reference/configuration/itransportconfiguration.mdx new file mode 100644 index 000000000..d60639a87 --- /dev/null +++ b/website/src/content/docs/reference/configuration/itransportconfiguration.mdx @@ -0,0 +1,365 @@ +--- +title: ITransportConfiguration +description: The transport-layer configuration — host, port, credentials, TLS, retry, and prefetch. +--- + +import { Aside } from '@astrojs/starlight/components'; + +## Overview + +`ITransportConfiguration` is the transport-layer configuration surface: broker host, credentials, virtual host, retry policy, consumer prefetch, graceful-shutdown drain window, and TLS. The shape is deliberately transport-neutral; the exact semantics of each field depend on the concrete transport in use. RabbitMQ is the only shipped implementation — access this configuration via `builder.ConfigureTransport(...)` or the `configure` delegate of `UseRabbitMQ(...)`. + +See [Configuration](/ServiceConnect-CSharp/learn/operations/configuration/) for how transport configuration fits into the wider bus setup. + +## Reference + +### `Host` + +```csharp +string Host { get; set; } +``` + +Gets or sets the transport host name. + +**Remarks.** RabbitMQ accepts a comma-separated host list for cluster failover (`"rabbit-a,rabbit-b,rabbit-c"`). The builder rejects an empty host at configuration time. + +--- + +### `Username` + +```csharp +string? Username { get; set; } +``` + +Gets or sets the transport username. + +--- + +### `Password` + +```csharp +string? Password { get; set; } +``` + +Gets or sets the transport password. + + + +--- + +### `VirtualHost` + +```csharp +string? VirtualHost { get; set; } +``` + +Gets or sets the virtual host or namespace used by the broker. On RabbitMQ this is the vhost (`/` by default); on other transports it maps to whatever logical partition the broker exposes. + +--- + +### `RetryDelay` + +```csharp +int RetryDelay { get; set; } +``` + +Gets or sets the dead-letter retry delay, in milliseconds. + +**Remarks.** Applied between retries when a handler throws. Must be non-negative. Two validation sites enforce this: the property setter throws `ArgumentOutOfRangeException` if a negative value is assigned directly, and `AddServiceConnect` throws `InvalidOperationException` during builder validation. + +--- + +### `MaxRetries` + +```csharp +int MaxRetries { get; set; } +``` + +Gets or sets the maximum retry attempts before a message is treated as terminally failed and routed to the error queue. + +**Remarks.** Must be non-negative. Two validation sites enforce this: the property setter throws `ArgumentOutOfRangeException` if a negative value is assigned directly, and `AddServiceConnect` throws `InvalidOperationException` during builder validation. + +--- + +### `PrefetchCount` + +```csharp +ushort PrefetchCount { get; set; } +``` + +Gets or sets the consumer prefetch count — the maximum number of unacknowledged messages the broker will deliver to a consumer at once. + +**Remarks.** Higher values improve throughput on I/O-bound handlers but increase the blast radius of a crashed consumer (every prefetched message is redelivered). For short handlers, values in the low tens are typical; for long-running handlers, keep it at `1`. + +--- + +### `GracefulShutdownTimeoutMilliseconds` + +```csharp +int GracefulShutdownTimeoutMilliseconds { get; set; } +``` + +Gets or sets the time the bus will wait for in-flight messages to drain during graceful shutdown, in milliseconds. + +**Remarks.** The property setter accepts any value, including negative, without validation. Only `AddServiceConnect` enforces the non-negative constraint, throwing `InvalidOperationException` during builder validation. After this budget expires, remaining in-flight messages are abandoned and will be redelivered when the consumer reconnects. + +--- + +### `SslEnabled` + +```csharp +bool SslEnabled { get; set; } +``` + +Gets or sets a value indicating whether TLS is enabled for the broker connection. + +**Default:** `true`. + +--- + +### `AcceptablePolicyErrors` + +```csharp +SslPolicyErrors AcceptablePolicyErrors { get; set; } +``` + +Gets or sets the TLS policy errors that are tolerated during remote certificate validation. + +**Remarks.** Defaults to `SslPolicyErrors.None`. Widening this (for example to accept `RemoteCertificateNameMismatch`) trades verification strictness for deployability in environments where the certificate CN does not match the hostname. + +--- + +### `ServerName` + +```csharp +string? ServerName { get; set; } +``` + +Gets or sets the expected remote server name for TLS validation. + +--- + +### `CertPath` + +```csharp +string? CertPath { get; set; } +``` + +Gets or sets the client certificate file path used for mutual TLS. + +--- + +### `CertPassphrase` + +```csharp +string? CertPassphrase { get; set; } +``` + +Gets or sets the passphrase used to open the client certificate file. + +--- + +### `Certs` + +```csharp +X509CertificateCollection? Certs { get; set; } +``` + +Gets or sets the in-memory client certificates to present to the broker. Use this when certificates are loaded from a store or a secret manager rather than from disk. + +--- + +### `SslProtocol` + +```csharp +SslProtocols SslProtocol { get; set; } +``` + +Gets or sets the TLS protocol selection. + +**Remarks.** Defaults to `SslProtocols.None`, which lets the runtime negotiate the best available protocol (TLS 1.3 where supported). Override only when you need to constrain to a specific version, e.g. for compliance. + +--- + +### `CertificateSelectionCallback` + +```csharp +LocalCertificateSelectionCallback? CertificateSelectionCallback { get; set; } +``` + +Gets or sets the callback used to choose a local client certificate when the broker requests one. + +--- + +### `CertificateValidationCallback` + +```csharp +RemoteCertificateValidationCallback? CertificateValidationCallback { get; set; } +``` + +Gets or sets the callback used to validate the remote broker certificate. A custom callback fully replaces the default chain check — use sparingly. + + + +--- + +### `SuppressPlaintextWarning` + +```csharp +bool SuppressPlaintextWarning { get; set; } +``` + +Gets or sets a value indicating whether the startup warning for plaintext connections to non-loopback hosts is suppressed. + +**Default:** `false`. + +**Remarks.** When `SslEnabled = false` and the configured `Host` resolves to a non-loopback address, ServiceConnect emits a `Warning`-level log under the `ServiceConnect` category at startup. Set this to `true` when plaintext is intentional — Docker Compose networks, dev clusters, isolated internal LANs — to silence the warning without adjusting log-level filters. + +The interface supplies a default implementation (`get` returns `false`, `set` is a no-op). Custom `ITransportConfiguration` implementations only need to override these accessors when they propagate the value to a transport that can act on it. + +--- + +### `ClientSettings` + +```csharp +IReadOnlyDictionary ClientSettings { get; } +``` + +Gets the provider-specific client settings bag. RabbitMQ populates this with transport-specific flags keyed by well-known names (see `RabbitMQSettingKeys`). + +**Returns.** A read-only view; mutation goes through [`SetClientSetting`](#setclientsetting). + +--- + +### `PublishTimeout` (RabbitMQ client setting) + +```csharp +transport.SetClientSetting(RabbitMQSettingKeys.PublishTimeout, TimeSpan.FromSeconds(30)); +``` + +Maximum time the RabbitMQ producer waits for a broker acknowledgement when publishing under publisher confirms. Accepts a `TimeSpan`; defaults to 30 seconds when unset. + +**Remarks.** When the broker ack does not arrive within this window the producer throws `TimeoutException` and the publish is **not retried** — the timeout is treated as a fatal publish error distinct from transport-level failures, so the retry loop exits immediately and the caller decides how to respond. Pair with [`PublisherAcknowledgements`](#publisheracknowledgements-rabbitmq-client-setting) — the timeout only has any effect when publisher confirms are enabled. + +--- + +### `PublisherAcknowledgements` (RabbitMQ client setting) + +```csharp +// Default: true — explicit override is rarely needed. +transport.SetClientSetting(RabbitMQSettingKeys.PublisherAcknowledgements, true); +``` + +Enables RabbitMQ publisher confirms for outbound publishes. **Default: `true`.** When enabled the producer waits for a broker ack before completing the publish, bounded by [`PublishTimeout`](#publishtimeout-rabbitmq-client-setting). + +**Remarks.** Two safety properties depend on confirms being enabled: [`PublishTimeout`](#publishtimeout-rabbitmq-client-setting) only enforces against a stalled broker when the producer awaits the ack, and the fan-out `SendAsync(Type)` path's between-iteration header re-stamping is gated by the broker ack so that RabbitMQ.Client cannot read the alias dict after the next iteration mutates it. Setting this explicitly to `false` *and* configuring a finite `PublishTimeout` is rejected at producer construction with `InvalidOperationException` — the combination silently disables the timeout, so misconfiguration fails fast at startup. Either keep the default, or pair an explicit `false` with `PublishTimeout = Timeout.InfiniteTimeSpan` / `TimeSpan.Zero`. + +--- + +### `MaxOutstandingPublishConfirms` (RabbitMQ client setting) + +```csharp +transport.SetClientSetting(RabbitMQSettingKeys.MaxOutstandingPublishConfirms, 256); +``` + +Caps the number of outstanding publisher confirms RabbitMQ.Client will track for one channel. Accepts a positive `int`; defaults to **256** when unset. Only has an effect when [`PublisherAcknowledgements`](#publisheracknowledgements-rabbitmq-client-setting) is enabled. + +**Remarks.** RabbitMQ.Client's outstanding-confirm tracker is unbounded by default; a stalled broker can let it grow until memory pressure or [`PublishTimeout`](#publishtimeout-rabbitmq-client-setting) trips a channel reset. The cap installs a `ConcurrencyLimiter` that **back-pressures** the publisher when reached (the publish call awaits a permit; it does *not* throw). For the current single-threaded `Producer` design, the cap is defence-in-depth — `_publishLock` already serialises publishes — but raising or lowering it gives operators a tuning point if the publisher ever gains concurrent-publish capability. + +Misconfiguration throws `InvalidOperationException` at first publish: non-`int` types and zero/negative values surface loudly rather than silently falling back to the default. + +--- + +### `NetworkRecoveryInterval` (RabbitMQ client setting) + +```csharp +transport.SetClientSetting(RabbitMQSettingKeys.NetworkRecoveryInterval, TimeSpan.FromSeconds(15)); +``` + +Sets the interval RabbitMQ.Client waits between automatic-recovery attempts after a connection drop. Accepts a `TimeSpan`; when unset, RabbitMQ.Client's own default applies (5 seconds at the time of writing). + +**Remarks.** Operators seeing prolonged broker-outage thrash — repeated reconnect failures filling logs and pressuring the network — can lengthen the interval to reduce the load. ServiceConnect doesn't add an exponential backoff or circuit-breaker layer on top: RabbitMQ.Client's auto-recovery uses a fixed interval, and tuning that interval is the supported control today. Misconfiguration throws `InvalidOperationException` at connection setup: non-`TimeSpan` values surface loudly with the offending value and its type. + +--- + +### `MaxHeaderCount` (RabbitMQ client setting) + +```csharp +transport.SetClientSetting(RabbitMQSettingKeys.MaxHeaderCount, 128); +``` + +Caps the number of headers the consumer will accept on an inbound message. Accepts a positive `int`; defaults to **64** when unset. Equivalent to `RabbitMqOptions.MaxHeaderCount` on the typed overload. + +**Remarks.** Inbound messages whose header count exceeds the cap are rejected at admission and routed to the error queue (acknowledged-then-published, not redelivered — a retry would just hit the same rule). Raise the cap for tracing-heavy producers that legitimately stamp wide header sets (W3C baggage, tenant headers); lower it to tighten resource-exhaustion defence against hostile inputs. The cap pairs with the per-value byte budget (8 KiB) and an aggregate header-size budget (the message-size budget, shared with the body cap) — together they bound the worst-case header weight an attacker can pack onto a single delivery. + +--- + +### `MaxHeaderValueBytes` (RabbitMQ client setting) + +```csharp +transport.SetClientSetting(RabbitMQSettingKeys.MaxHeaderValueBytes, 16 * 1024); +``` + +Caps the bytes any single header value may carry on an inbound message. Accepts a positive `int`; defaults to **8192** (8 KB) when unset. Equivalent to `RabbitMqOptions.MaxHeaderValueBytes` on the typed overload. + +**Remarks.** Inbound messages with any header value exceeding the cap are rejected at admission and routed to the error queue (acknowledged-then-published, not redelivered — a retry would just hit the same rule). The cap descends into AMQP nested tables and arrays, so an adversary cannot bypass it by wrapping the payload in a nested structure. Raise the cap for deployments that legitimately stamp large correlation / tracing values; lower it to tighten resource-exhaustion defence against hostile inputs. The cap pairs with the header-count budget (`MaxHeaderCount`) and the aggregate header-size budget (the message-size budget, shared with the body cap) — together they bound the worst-case header weight an attacker can pack onto a single delivery. + +--- + +### `SetClientSetting` + +```csharp +void SetClientSetting(string key, object value) +``` + +Stores a provider-specific client setting. + +**Parameters** +- `key` — The setting key, typically a well-known constant from the transport's setting-keys class (for example `RabbitMQSettingKeys.PublishTimeout`, `RabbitMQSettingKeys.PublisherAcknowledgements`). +- `value` — The setting value. + +## Usage + +### Configuring a TLS-enabled RabbitMQ connection with a non-default prefetch + +```csharp +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(transport => + { + transport.Host = "rabbit.internal.example"; + transport.Username = "order-service"; + transport.Password = Environment.GetEnvironmentVariable("ORDER_RABBIT_PASSWORD"); + transport.VirtualHost = "/orders"; + + transport.SslEnabled = true; + transport.SslProtocol = SslProtocols.Tls12; + transport.ServerName = "rabbit.internal.example"; + transport.CertPath = "/var/run/secrets/order-service/client.pfx"; + transport.CertPassphrase = Environment.GetEnvironmentVariable("ORDER_RABBIT_CERT_PASS"); + + transport.PrefetchCount = 32; + transport.MaxRetries = 5; + transport.RetryDelay = 2_000; + transport.GracefulShutdownTimeoutMilliseconds = 15_000; + }); + + builder.ConfigureQueues(queues => + { + queues.QueueName = "order-service"; + queues.ErrorQueueName = "order-service.errors"; + }); +}); +``` + +The `OrderService` handlers spend most of their time waiting on a downstream HTTP API, so a prefetch of 32 keeps several handler slots busy without saturating memory. Mutual TLS is negotiated with a client certificate read from the host's secret mount, and the policy errors default (`None`) is left intact so a hostname or chain mismatch refuses the connection rather than silently trusting it. + +## See also + +- [Configuration](/ServiceConnect-CSharp/learn/operations/configuration/) — concept +- [`IBusConfiguration`](../../bus/ibusconfiguration/) — related reference +- [`IQueueConfiguration`](../iqueueconfiguration/) — related reference diff --git a/website/src/content/docs/reference/extension-points/bus/irequestreplymanager.mdx b/website/src/content/docs/reference/extension-points/bus/irequestreplymanager.mdx new file mode 100644 index 000000000..729293900 --- /dev/null +++ b/website/src/content/docs/reference/extension-points/bus/irequestreplymanager.mdx @@ -0,0 +1,180 @@ +--- +title: IRequestReplyManager +description: Coordinates request/reply interactions on top of the transport pipeline — tracks in-flight requests and correlates replies by message id. +--- + +import { Aside } from '@astrojs/starlight/components'; + +## Overview + +`IRequestReplyManager` is the seam between `IBus.SendRequestAsync` and the transport's outgoing pipeline. When a request method is called on `IBus`, the bus delegates to `IRequestReplyManager`, which: + +1. Generates a fresh correlation `Guid` and stamps it onto the outgoing headers as `RequestMessageId`. +2. Records a `TaskCompletionSource` (or callback) keyed by that id in its pending-request table. +3. Dispatches the typed message through the outgoing pipeline; the pipeline serializes it and writes to the transport. +4. Awaits the `TaskCompletionSource` until the matching reply arrives or the timeout fires. + +When a reply message arrives, the reply consumer calls `ProcessReply`, which looks up the correlation id in the pending table, deserializes the payload using the reply type recorded at request time (not the wire-reported type), and resolves the `TaskCompletionSource`. + +The correlation mechanism is entirely in-memory. Pending requests are keyed by `Guid` in a `ConcurrentDictionary`; replies received with an unknown id are silently dropped. + + + +## Reference + +```csharp +using ServiceConnect.Interfaces.Exceptions; +using ServiceConnect.Interfaces.Options; + +namespace ServiceConnect.Interfaces; + +/// +/// Coordinates request/reply interactions on top of the transport pipeline. +/// +public interface IRequestReplyManager +{ + /// + /// Sends a request and waits for a single reply. + /// + Task SendRequestAsync( + TRequest message, + IDictionary headers, + RequestOptions options, + CancellationToken cancellationToken = default) + where TRequest : Message + where TReply : Message; + + /// + /// Sends a request and collects multiple replies. + /// + Task> SendRequestMultiAsync( + TRequest message, + IDictionary headers, + RequestOptions options, + CancellationToken cancellationToken = default) + where TRequest : Message + where TReply : Message; + + /// + /// Publishes a request and invokes a callback for each reply that arrives. + /// + Task PublishRequestAsync( + TRequest message, + IDictionary headers, + RequestOptions options, + Action onReply, + CancellationToken cancellationToken = default) + where TRequest : Message + where TReply : Message; + + /// + /// Attempts to match an incoming reply to a pending request. + /// + void ProcessReply(string messageId, ReadOnlyMemory messageBytes, Type type); +} +``` + +### `SendRequestAsync` + +Sends a typed request and waits for exactly one reply. The method generates a correlation id, stamps `RequestMessageId` onto `headers`, hands the message to the outgoing pipeline (which serializes and writes to the transport), then blocks until `ProcessReply` resolves the `TaskCompletionSource`. If the reply does not arrive within `RequestOptions.Timeout`, a `RequestTimeoutException` is thrown. + +**Parameters** +- `message` — the typed request message. The pipeline serializes it and middleware sees the strongly-typed instance via `SendContext.Message`. +- `headers` — outgoing headers; `RequestMessageId` is written into this dictionary by the implementation. +- `options` — routing and timeout options. Set `EndPoint` to target a specific queue, or leave blank to use the type-mapped default. +- `cancellationToken` — cancels the wait; throws `RequestSendCancelledException` if cancelled during the outbound send, or plain `OperationCanceledException` if cancelled while awaiting the reply. + +**Returns** the deserialized reply as `TReply`. + +### `SendRequestMultiAsync` + +Sends a typed request and collects multiple replies. Works identically to `SendRequestAsync` for the outgoing side; fan-out to multiple responders comes from registering multiple queues against the request type via `IQueueConfiguration.AddQueueMapping`. On the incoming side, each `ProcessReply` call appends to an internal list. With `RequestOptions.ExpectedReplyCount` set to a positive value, the call returns as soon as that many replies have arrived; if fewer arrive before the timeout, a `RequestTimeoutException` is thrown with the partials available on `PartialReplies`. With `ExpectedReplyCount` left unset (or set to zero/negative), the call waits the full timeout and returns every reply received. + +**Parameters** — same shape as `SendRequestAsync`. `options.ExpectedReplyCount` drives the reply-count expectation; `cancellationToken` throws `RequestSendCancelledException` on outbound cancellation or plain `OperationCanceledException` on caller-token cancellation. + +**Returns** the collected replies as `IList`. + +### `PublishRequestAsync` + +Publishes a typed request to all subscribers and invokes `onReply` for each reply that arrives. Unlike the `SendRequest` variants, this uses the publish pipeline rather than the send pipeline, and the caller supplies a callback rather than awaiting a return value. The method returns when the reply count is satisfied, or after the timeout. If `options.ExpectedReplyCount` is positive and fewer replies arrive before the timeout, a `RequestTimeoutException` is thrown. + +**Parameters** +- `message` — the typed request message; same shape as `SendRequestAsync`. +- `onReply` — invoked on the reply-processing thread for each matching reply. The callback must not block; long-running work should be dispatched to a background thread. +- `headers`, `options` — match `SendRequestAsync`. +- `cancellationToken` — throws `RequestSendCancelledException` if cancelled during the outbound publish, or plain `OperationCanceledException` if cancelled while awaiting replies. + +### `ProcessReply` + +Called by the reply consumer to match an incoming reply to a tracked request. Looks up `messageId` in the pending-request table. If a match is found, deserializes `messageBytes` using the reply type recorded at request time (to prevent deserialization into attacker-controlled types from crafted reply messages), then resolves the `TaskCompletionSource` or invokes the callback. Unknown or already-completed ids are silently ignored. + +**Parameters** +- `messageId` — the `RequestMessageId` header value copied verbatim from the request into the reply by the replying handler. +- `messageBytes` — the serialized reply payload. +- `type` — the wire-reported reply type; used for logging but the implementation deserializes to the type stored at request time. + +## Where it sits + +`IRequestReplyManager` sits between the `IBus` request methods and the send/publish pipelines: + +``` +IBus.SendRequestAsync + └─► IRequestReplyManager.SendRequestAsync + ├─► stamps RequestMessageId header + ├─► ISendMessagePipeline.ExecuteSendMessagePipelineAsync + └─► awaits TaskCompletionSource + ▲ + reply consumer calls ProcessReply +``` + +The correlation id travels on the `RequestMessageId` header. Replying handlers read this header and echo it back; the reply consumer strips it and calls `ProcessReply`. + +## When to implement + +You rarely need to replace `RequestReplyManager`. Common reasons to do so: + +- **Durable pending-request store** — survive process restarts by persisting correlation ids and their reply types to Redis or a database. On startup, reload the table and reconnect reply channels. +- **Custom timeout behaviour** — extend the timeout window based on message priority, add retry logic, or surface partial results before the deadline. +- **Telemetry and observability** — instrument the full round-trip duration, correlate traces across the request and reply sides, or emit metrics per message type. +- **Rate limiting** — cap the number of in-flight requests to protect downstream services. + +## Usage + +### Registration + +Replace the default implementation via `AddRegistration`: + +```csharp +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(transport => transport.Host = "rabbit.internal.example"); + builder.AddRegistration(svc => + svc.AddSingleton()); +}); +``` + +### Companion contract: `IReplyStatusRequestReplyManager` + +The in-box dispatcher also depends on an internal interface, `IReplyStatusRequestReplyManager` (`IsTrackedRequest` + `TryProcessReply`), which the reply consumer uses to filter messages and avoid deserializing replies for requests it is not tracking. The default `RequestReplyManager` implements both `IRequestReplyManager` and this companion interface. + +`IReplyStatusRequestReplyManager` is `internal` to the `ServiceConnect` assembly. Third-party code cannot implement or reference it directly. If you register a custom type as `IRequestReplyManager` without also satisfying the companion contract, `AddServiceConnect` throws `InvalidOperationException` at startup because the required `IReplyStatusRequestReplyManager` registration is absent. + +**Supported approaches for custom replacements:** + +1. **Wrap or decorate the default implementation.** Register the default `RequestReplyManager` normally and forward calls from your outer type. This avoids the internal-contract problem entirely because the inner `RequestReplyManager` continues to satisfy `IReplyStatusRequestReplyManager`. + +2. **Intercept via filters or middleware.** Many customisation goals (telemetry, rate limiting, custom timeout behaviour) can be achieved by adding send or receive middleware rather than replacing the manager itself. Prefer this path when you do not need to change the correlation lifecycle. + +3. **Open an issue.** If your use case genuinely requires a fully independent replacement, file an issue in the ServiceConnect repository. Making `IReplyStatusRequestReplyManager` public (or merging it into the main interface) is the right fix; working around an internal contract is fragile. + +## See also + +- [`IBus`](../../../bus/ibus/) — the runtime bus surface; `SendRequestAsync`, `SendRequestMultiAsync`, and `PublishRequestAsync` delegate to this interface +- [Message options](../../../messages/options/) — `RequestOptions` including `Timeout`, `EndPoint`, and `ExpectedReplyCount` +- [Request/reply pattern](/ServiceConnect-CSharp/learn/messaging-patterns/request-reply/) — the messaging pattern this interface implements diff --git a/website/src/content/docs/reference/extension-points/index.mdx b/website/src/content/docs/reference/extension-points/index.mdx new file mode 100644 index 000000000..5e9c6463a --- /dev/null +++ b/website/src/content/docs/reference/extension-points/index.mdx @@ -0,0 +1,40 @@ +--- +title: Extension Points +description: Pluggable internals — only touch these when replacing a default implementation. +--- + +import { CardGrid, LinkCard } from '@astrojs/starlight/components'; + +export const base = import.meta.env.BASE_URL.replace(/\/$/, ''); + +Extension points are the interfaces the framework calls *into*. You only need this section if you're replacing a default implementation — shipping a custom persistence store, serializer, or transport. + +Most consumers never open this section. If you're wiring the bus into a new database or message broker, start here; otherwise the [API Reference](/ServiceConnect-CSharp/reference/) has what you need. + + + + + + + + diff --git a/website/src/content/docs/reference/extension-points/persistence/iaggregatorpersistor.mdx b/website/src/content/docs/reference/extension-points/persistence/iaggregatorpersistor.mdx new file mode 100644 index 000000000..dae0173ac --- /dev/null +++ b/website/src/content/docs/reference/extension-points/persistence/iaggregatorpersistor.mdx @@ -0,0 +1,483 @@ +--- +title: IAggregatorPersistor +description: The contract for a custom aggregator buffer — insert, load, and remove buffered messages by logical aggregator name. +--- + +import { Aside } from '@astrojs/starlight/components'; + +## Overview + +`IAggregatorPersistor` is the storage contract that an `Aggregator` uses to buffer incoming messages between deliveries. When a message arrives the framework calls `InsertDataAsync` to persist it; once the aggregation condition is met, it calls `GetSnapshotAsync` to obtain the resolved records, fires the aggregator callback, then removes the records via `RemoveSnapshotAsync`. The interface also exposes `CountAsync`, `GetDataAsync`, and bulk-removal methods for management and recovery paths. + +ServiceConnect ships in-memory and MongoDB implementations out of the box. Swap in a custom implementation — Postgres, Redis, DynamoDB — by registering it via `ServiceConnectBuilder.AddRegistration`. + +See [Aggregator](/ServiceConnect-CSharp/learn/messaging-patterns/aggregator/) for the conceptual model. + +## Reference + +### `InsertDataAsync` + +```csharp +Task InsertDataAsync(IHasCorrelationId data, string name, string idempotencyKey, CancellationToken cancellationToken = default); +``` + +Persists a single message payload for the named aggregator instance, idempotent on `idempotencyKey` within the aggregator's active row set. + +**Parameters** +- `data` — the message payload to store. Must implement `IHasCorrelationId` (the `Message` base class does, so any concrete `Message` works). +- `name` — the logical aggregator name (for example, `"ShippingAggregator"`). Used as a partition key — all operations for one aggregator are scoped to this value. The framework derives this value from `handlerType.FullName` (the concrete user subclass, e.g. `"MyNamespace.TelemetrySliceAggregator"`), not from the closed-generic base type. +- `idempotencyKey` — a stable per-message identifier (typically the broker-side `MessageId`) used to reject re-inserts of the same delivery. A retry-queue redelivery between Insert and the dispatcher's broker ack will re-enter `InsertDataAsync` with the same key while the prior insert's row is still buffered; the persistor must skip the second write so the aggregator's `Execute` sees each delivery exactly once. Once the row has been removed (snapshot dispatched), the key is no longer tracked. +- `cancellationToken` — cancels the storage operation. + +**Remarks.** Each call corresponds to one message delivery. The store must be able to hold multiple records under the same `name`, distinguishable by a per-record identifier (typically the correlation id embedded in the message). The idempotency-key contract makes the operation safe under at-least-once redelivery. + +--- + +### `GetDataAsync` + +```csharp +Task> GetDataAsync(string name, CancellationToken cancellationToken = default); +``` + +Returns every buffered record for the named aggregator as a list of deserialised payloads. + +**Parameters** +- `name` — the logical aggregator name to load. +- `cancellationToken` — cancels the load. + +**Returns.** All stored records; an empty list when none are present (never `null`). + +**Remarks.** This method is used by recovery paths and administrative tooling. For normal aggregation flow, `GetSnapshotAsync` is preferred because it separates resolved records from those that could not be deserialised. + +--- + +### `GetSnapshotAsync` + +```csharp +Task GetSnapshotAsync(string name, CancellationToken cancellationToken = default); +``` + +Returns a snapshot of the buffered records, separating those that deserialised successfully from those that could not. + +**Parameters** +- `name` — the logical aggregator name. +- `cancellationToken` — cancels the load. + +**Returns.** An `IAggregatorSnapshot` describing the resolved and unresolved portions of the buffer. See [IAggregatorSnapshot](#iaggregatorsnapshot) below for the member details. + +**Remarks.** The snapshot is a *point-in-time view*, not a version token. After the aggregator fires, the same snapshot is passed to `RemoveSnapshotAsync` to remove exactly the records captured in it — any records that arrived after the snapshot was taken remain in the store. + +--- + +### `IAggregatorSnapshot` + +`IAggregatorSnapshot` is the companion interface returned by `GetSnapshotAsync`. It separates the buffered records into those the store could deserialise (resolved) and those it could not (unresolved). + +### `IAggregatorSnapshot.ResolvedMessages` + +```csharp +IReadOnlyList ResolvedMessages { get; } +``` + +The deserialised message payloads for all records that could be hydrated. The aggregator callback receives this list. Every element implements `IHasCorrelationId` (the `Message` base class does); cast to the concrete saga type when consuming. + +--- + +### `IAggregatorSnapshot.ResolvedIds` + +```csharp +IReadOnlyList ResolvedIds { get; } +``` + +The storage identifiers corresponding to `ResolvedMessages`, in the same order. `RemoveSnapshotAsync` uses these ids as the delete key set — implementations that store records by `(name, correlationId)` pairs should match on `correlationId`. + +--- + +### `IAggregatorSnapshot.UnresolvedCount` + +```csharp +int UnresolvedCount { get; } +``` + +The number of stored records that could not be deserialised to CLR objects. A positive value indicates schema drift or missing type registrations. The framework counts these towards the total when evaluating count-based conditions but cannot pass them to the aggregator callback. + +--- + +### `RemoveDataAsync` + +```csharp +Task RemoveDataAsync(string name, Guid correlationId, CancellationToken cancellationToken = default); +``` + +Removes a single buffered record by its correlation id. + +**Parameters** +- `name` — the logical aggregator name. +- `correlationId` — the correlation id of the record to remove. +- `cancellationToken` — cancels the operation. + +**Throws** `ConcurrencyException` when the `(name, correlationId)` row cannot be located — either because another writer concurrently removed it, or because the caller supplied a mismatched key. All first-party persistors raise this contract on no-op delete; third-party implementations should match it so callers can distinguish a concurrent-removal race from a structural persistence failure. + +**Remarks.** Used by compensating or administrative flows that need to evict one specific message from the buffer without triggering aggregation. + +--- + +### `RemoveAllAsync` + +```csharp +Task RemoveAllAsync(string name, CancellationToken cancellationToken = default); +``` + +Removes all buffered records for the named aggregator unconditionally. + +**Parameters** +- `name` — the logical aggregator name. +- `cancellationToken` — cancels the operation. + +**Remarks.** Use with care. This is a bulk delete — it removes every record regardless of whether they have been resolved. Useful during saga cancellation or partition reset scenarios. + +--- + +### `RemoveSnapshotAsync` + +```csharp +Task RemoveSnapshotAsync(string name, IAggregatorSnapshot snapshot, CancellationToken cancellationToken = default); +``` + +Removes the records captured in a previously loaded snapshot. + +**Parameters** +- `name` — the logical aggregator name. +- `snapshot` — the snapshot returned by `GetSnapshotAsync`; implementations should delete the records whose ids are listed in `snapshot.ResolvedIds`. +- `cancellationToken` — cancels the operation. + +**Remarks.** The contract here is important for correctness under at-least-once delivery. If `RemoveSnapshotAsync` fails after the aggregator has already fired, the framework retries the delivery; the surviving records are presented again on the next `GetSnapshotAsync` call and the aggregator fires a second time — duplicate delivery results. Implement this method atomically (for example, inside a transaction) wherever possible, and make the aggregator callback idempotent. + +--- + +### `ReleaseSnapshotAsync` + +```csharp +Task ReleaseSnapshotAsync(string name, IAggregatorSnapshot snapshot, CancellationToken cancellationToken = default); +``` + +Releases the lease held by the supplied snapshot so the rows become immediately re-claimable by a subsequent `GetSnapshotAsync`. + +**Parameters** +- `name` — the logical aggregator name. +- `snapshot` — the snapshot whose lease should be released. +- `cancellationToken` — cancels the operation. + +**Default implementation.** Returns `Task.CompletedTask` immediately — a no-op. This is correct for any persistor that does not stamp a lease during `GetSnapshotAsync` (the in-memory store and third-party implementations that predate this method fall into this category). The no-op semantics match a persistor where rows are always re-claimable by id alone. + +**Override requirement.** Persistors that stamp a `LockedBy`/`LockExpiresAt` pair on rows during snapshot acquisition — the MongoDB persistor does — **must** override this method to clear those columns for the snapshot's session id. Without an override, a handler failure leaves the rows leased until the persistor's lease TTL expires (5 minutes on the MongoDB persistor by default). During that window the next redelivery's `GetSnapshotAsync` returns an empty snapshot, and the handler is never re-invoked with the buffered records. + +**Remarks.** Called by the aggregator processor immediately on handler failure, before the delivery is nacked back to the broker. The retry-queue redelivery arrives after the explicit release rather than after the TTL expiry, keeping the aggregate's observed latency close to the broker's retry interval. + +--- + +### `CountAsync` + +```csharp +Task CountAsync(string name, CancellationToken cancellationToken = default); +``` + +Returns the number of buffered records currently held for the named aggregator. + +**Parameters** +- `name` — the logical aggregator name. +- `cancellationToken` — cancels the operation. + +**Returns.** The count of persisted records; `0` when the buffer is empty. + +**Remarks.** Used by the framework to evaluate count-based aggregation conditions without loading every record. + +--- + +### `CountResolvedAsync` + +```csharp +Task CountResolvedAsync(string name, CancellationToken cancellationToken = default); +``` + +Default-interface method that counts persisted messages whose CLR type is currently resolvable. Drives the batch-size flush gate so unresolved-only batches do not trigger flushes that would produce no work. + +**Parameters** +- `name` — the logical aggregator name. +- `cancellationToken` — cancels the operation. + +**Returns.** The number of stored records whose CLR type is currently resolvable. + +**Default implementation.** Delegates to `CountAsync` — correct for any persistor whose stored records are always type-resolvable (e.g. an in-memory store that holds deserialised `IHasCorrelationId` instances) and for any deployment where every registered type still has a live CLR mapping. Safe but not optimal: a persistor with a meaningful resolved/unresolved split (e.g. Mongo across a type-rename rollout) should override with a cheap typed predicate to avoid flushing on rows that would only count toward the gate. + +**Implementers MUST NOT override with a method that mutates state.** This method runs on every `InsertDataAsync` as the batch-size flush gate; an implementation that claims a lease (e.g. by delegating to `GetSnapshotAsync` on a snapshot-claims-lease persistor) would rotate the lease on every insert and break the per-flush lease invariant. + +--- + +## Implementing + +### Concurrency + +The framework may invoke `InsertDataAsync` and `CountAsync` concurrently from multiple consumer threads, potentially for the same `name` when an aggregator runs with multiple partitions. Implementations must be safe under concurrent access to the same name. A relational store should rely on database-level row locking; an in-memory store needs a `ConcurrentDictionary` or a per-name `SemaphoreSlim`. + +### Transactional expectations + +`RemoveSnapshotAsync` is the critical path for correctness. If the aggregator callback completes but `RemoveSnapshotAsync` fails — network timeout, deadlock, process crash — the records remain in the store. On the next `GetSnapshotAsync` the same records appear again, and the aggregator fires a second time. Design aggregator callbacks to be idempotent, and where the storage engine permits it, wrap the aggregator callback and `RemoveSnapshotAsync` in a single database transaction or outbox pattern. + +### Snapshot semantics + +A snapshot is a view, not a lock. Records written between `GetSnapshotAsync` and `RemoveSnapshotAsync` are not included in `ResolvedIds` and survive the delete. The implementation must therefore delete by id set rather than truncating the partition. + +### Skeletal implementation sketch + +```csharp +public sealed class PostgresAggregatorPersistor : IAggregatorPersistor +{ + private readonly string _connectionString; + + public PostgresAggregatorPersistor(string connectionString) + => _connectionString = connectionString; + + public Task InsertDataAsync(IHasCorrelationId data, string name, string idempotencyKey, CancellationToken cancellationToken = default) + => throw new NotImplementedException(); + + public Task> GetDataAsync(string name, CancellationToken cancellationToken = default) + => throw new NotImplementedException(); + + public Task GetSnapshotAsync(string name, CancellationToken cancellationToken = default) + => throw new NotImplementedException(); + + public Task RemoveDataAsync(string name, Guid correlationId, CancellationToken cancellationToken = default) + => throw new NotImplementedException(); + + public Task RemoveAllAsync(string name, CancellationToken cancellationToken = default) + => throw new NotImplementedException(); + + public Task RemoveSnapshotAsync(string name, IAggregatorSnapshot snapshot, CancellationToken cancellationToken = default) + => throw new NotImplementedException(); + + public Task CountAsync(string name, CancellationToken cancellationToken = default) + => throw new NotImplementedException(); + + // ReleaseSnapshotAsync has a default implementation on the interface that returns + // Task.CompletedTask (no-op). For a store that does not lease rows during + // GetSnapshotAsync — like this Postgres sketch — the DIM default is correct and no + // override is needed. Persistors that stamp a lock on snapshot acquisition (e.g. + // MongoDB) must override to clear the lock on failure so rows are immediately + // re-claimable. + + // CountResolvedAsync has a default implementation on the interface that delegates + // to CountAsync — override here if you want a cheaper "type-resolvable rows only" + // predicate (matters under type renames). +} +``` + +## Usage + +### Postgres-backed aggregator buffer using Npgsql + +The following example implements `IAggregatorPersistor` against a Postgres table with an `UPSERT`-style insert and a set-based delete for snapshot removal. + +```csharp +// Schema (run once during migration): +// CREATE TABLE aggregator_messages ( +// id UUID NOT NULL, +// name TEXT NOT NULL, +// payload JSONB NOT NULL, +// type_name TEXT NOT NULL, +// created_at TIMESTAMPTZ NOT NULL DEFAULT now(), +// PRIMARY KEY (id, name) +// ); + +public sealed class PostgresAggregatorPersistor : IAggregatorPersistor +{ + private readonly string _connectionString; + private readonly JsonSerializerOptions _jsonOptions; + + public PostgresAggregatorPersistor(string connectionString, JsonSerializerOptions jsonOptions) + { + _connectionString = connectionString; + _jsonOptions = jsonOptions; + } + + public async Task InsertDataAsync( + IHasCorrelationId data, + string name, + string idempotencyKey, + CancellationToken cancellationToken = default) + { + var correlationId = data.CorrelationId; + var typeName = data.GetType().AssemblyQualifiedName!; + var payload = JsonSerializer.Serialize(data, data.GetType(), _jsonOptions); + + await using var conn = new NpgsqlConnection(_connectionString); + await conn.OpenAsync(cancellationToken); + + // idempotencyKey is unique within the active row set: insert is suppressed if + // the same key already exists for the same (name) partition. ON CONFLICT + // DO NOTHING gives the at-least-once-redelivery-safe contract the interface + // requires. + await conn.ExecuteAsync( + @"INSERT INTO aggregator_messages (id, name, payload, type_name, idempotency_key) + VALUES (@id, @name, @payload::jsonb, @typeName, @idempotencyKey) + ON CONFLICT (name, idempotency_key) DO NOTHING", + new { id = correlationId, name, payload, typeName, idempotencyKey }); + } + + public async Task> GetDataAsync( + string name, + CancellationToken cancellationToken = default) + { + await using var conn = new NpgsqlConnection(_connectionString); + await conn.OpenAsync(cancellationToken); + + var rows = await conn.QueryAsync<(Guid Id, string Payload, string TypeName)>( + "SELECT id, payload::text, type_name FROM aggregator_messages WHERE name = @name ORDER BY created_at", + new { name }); + + return rows + .Select(r => (IHasCorrelationId)JsonSerializer.Deserialize(r.Payload, Type.GetType(r.TypeName)!, _jsonOptions)!) + .ToList(); + } + + public async Task GetSnapshotAsync( + string name, + CancellationToken cancellationToken = default) + { + await using var conn = new NpgsqlConnection(_connectionString); + await conn.OpenAsync(cancellationToken); + + var rows = await conn.QueryAsync<(Guid Id, string Payload, string TypeName)>( + "SELECT id, payload::text, type_name FROM aggregator_messages WHERE name = @name ORDER BY created_at", + new { name }); + + var resolved = new List(); + var resolvedIds = new List(); + var unresolved = 0; + + foreach (var row in rows) + { + var type = Type.GetType(row.TypeName); + if (type is null) + { + unresolved++; + continue; + } + var obj = JsonSerializer.Deserialize(row.Payload, type, _jsonOptions) as IHasCorrelationId; + if (obj is null) + { + unresolved++; + continue; + } + resolved.Add(obj); + resolvedIds.Add(row.Id); + } + + return new AggregatorSnapshot(resolved, resolvedIds, unresolved); + } + + public async Task RemoveDataAsync( + string name, + Guid correlationId, + CancellationToken cancellationToken = default) + { + await using var conn = new NpgsqlConnection(_connectionString); + await conn.OpenAsync(cancellationToken); + await conn.ExecuteAsync( + "DELETE FROM aggregator_messages WHERE name = @name AND id = @id", + new { name, id = correlationId }); + } + + public async Task RemoveAllAsync( + string name, + CancellationToken cancellationToken = default) + { + await using var conn = new NpgsqlConnection(_connectionString); + await conn.OpenAsync(cancellationToken); + await conn.ExecuteAsync( + "DELETE FROM aggregator_messages WHERE name = @name", + new { name }); + } + + public async Task RemoveSnapshotAsync( + string name, + IAggregatorSnapshot snapshot, + CancellationToken cancellationToken = default) + { + if (snapshot.ResolvedIds.Count == 0) + return; + + await using var conn = new NpgsqlConnection(_connectionString); + await conn.OpenAsync(cancellationToken); + + // Delete exactly the ids captured in the snapshot — any records that arrived + // after GetSnapshotAsync was called are unaffected. + await conn.ExecuteAsync( + "DELETE FROM aggregator_messages WHERE name = @name AND id = ANY(@ids)", + new { name, ids = snapshot.ResolvedIds.ToArray() }); + } + + public async Task CountAsync( + string name, + CancellationToken cancellationToken = default) + { + await using var conn = new NpgsqlConnection(_connectionString); + await conn.OpenAsync(cancellationToken); + var count = await conn.ExecuteScalarAsync( + "SELECT COUNT(*) FROM aggregator_messages WHERE name = @name", + new { name }); + return (int)count; + } + + // Minimal snapshot value type used above. + private sealed record AggregatorSnapshot( + IReadOnlyList ResolvedMessages, + IReadOnlyList ResolvedIds, + int UnresolvedCount) : IAggregatorSnapshot; +} +``` + +Register the implementation during bus startup: + +```csharp +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(transport => transport.Host = "rabbit.internal.example"); + builder.AddRegistration(services => + services.AddSingleton(_ => new PostgresAggregatorPersistor(connectionString, jsonOptions))); +}); +``` + +## MongoDB aggregator contract + +The MongoDB implementation (`MongoDbAggregatorPersistor`) adds several behaviours and exception contracts beyond the base interface. + +### WriteConcern.Unacknowledged rejected + +`MongoDbAggregatorPersistor` requires the `IMongoClient` to be configured with an acknowledged write concern (`w:1` or higher). Construction throws `InvalidOperationException` for `WriteConcern.Unacknowledged`. Under `w:0`, `RemoveDataAsync`'s `IsAcknowledged`-gated branch silently succeeds and the documented `ConcurrencyException` contract on stale-version updates is broken — admitting duplicate aggregate dispatch. + +See [Persistence Configuration → MongoDB provider contract](/ServiceConnect-CSharp/reference/configuration/ipersistenceconfiguration/#writeconcern-requirement) for the full guard set across all three Mongo stores. + +### Insertion order semantics + +Records inserted with identical `InsertedAtTicks` values — for example, two messages processed within a single `DateTime.Tick` — are ordered by a per-process monotonic counter (`InsertSequence`). This ensures that within a single process, records appear in their actual insertion order regardless of clock resolution. Cross-process ties (two processes inserting the same tick value simultaneously) remain unresolved and produce an arbitrary but stable order. + +### `RemoveDataAsync` exception contract + +`RemoveDataAsync(name, correlationId)` distinguishes two error conditions: + +- **`KeyNotFoundException`** — thrown when no records exist for the given `name` at all. This indicates a caller error (the aggregator partition does not exist) or a cleanup race where the partition was already fully removed. +- **`ConcurrencyException`** — thrown when records exist for `name` but none match the given `correlationId`. This is a genuine concurrent-removal race; the exception message includes the row count for the partition. The caller may retry or treat it as resolved depending on their semantics. +- **`PersistenceException`** — thrown when the underlying BSON serialization layer raises a `BsonException` (for example, `BsonSerializationException` on schema drift). The original `BsonException` is wrapped as the inner exception. + +Custom implementations targeting a different storage engine should map their equivalent error conditions to the same exception types to maintain cross-provider behavioural consistency. + +### Index caching + +`EnsureIndexesAsync` is called on the first operation and its result cached for the lifetime of the persistor instance. Subsequent operations bypass the index-creation round-trip, eliminating per-message overhead on the hot path. + +## See also + +- [Aggregator](/ServiceConnect-CSharp/learn/messaging-patterns/aggregator/) — concept +- [`Aggregator`](../../../process-managers/aggregator/) — related reference +- [`IPersistenceConfiguration`](../../../configuration/ipersistenceconfiguration/) — related reference diff --git a/website/src/content/docs/reference/extension-points/persistence/iprocessmanagerfinder.mdx b/website/src/content/docs/reference/extension-points/persistence/iprocessmanagerfinder.mdx new file mode 100644 index 000000000..c2dd3e6fd --- /dev/null +++ b/website/src/content/docs/reference/extension-points/persistence/iprocessmanagerfinder.mdx @@ -0,0 +1,390 @@ +--- +title: IProcessManagerFinder +description: The contract for a custom saga persistence store — find, insert, update, and delete process-manager state by correlation rules supplied via the property mapper. +--- + +import { Aside } from '@astrojs/starlight/components'; + +## Overview + +`IProcessManagerFinder` is the storage interface the framework calls to resolve and persist process-manager (saga) state. For every inbound message that targets a saga, the dispatch pipeline calls `FindDataAsync` to load the correlated state record, invokes the handler, then calls either `UpdateDataAsync` or `DeleteDataAsync` depending on whether the saga is still active. `InsertDataAsync` is called the first time a correlation id is seen and there is no existing record. + +ServiceConnect ships in-memory and MongoDB implementations. Substitute a custom implementation — Postgres, SQL Server, DynamoDB — by registering it via `ServiceConnectBuilder.AddRegistration`. + +See [Process Manager](/ServiceConnect-CSharp/learn/messaging-patterns/process-manager/) for the conceptual model. + +## Reference + +### `FindDataAsync` + +```csharp +Task?> FindDataAsync( + IProcessManagerPropertyMapper mapper, + Message message, + CancellationToken cancellationToken = default) + where T : class, IProcessManagerData; +``` + +Locates the persisted state record that correlates with `message` according to the rules in `mapper`. + +**Parameters** +- `mapper` — the mapper that holds the registered `(data property, message property)` correlation expressions for this handler. A production finder walks `mapper.Mappings` to extract the lookup value from the message; in straightforward cases the lookup key is simply `message.CorrelationId`. +- `message` — the inbound message being dispatched; the correlation key is derived from it. +- `cancellationToken` — cancels the database round-trip. + +**Returns.** An `IPersistenceData` wrapper if a matching record exists; `null` if no record is found. Never throw for the not-found case — the dispatcher treats `null` as the trigger to call `InsertDataAsync` and create a fresh record. + +**Remarks.** The returned `IPersistenceData` wrapper is passed back verbatim to `UpdateDataAsync` or `DeleteDataAsync`. Implementations can carry concurrency metadata (a `version` column value, an ETag, a row lock handle) on the concrete type that implements `IPersistenceData` — the interface only exposes `Data`, so any extra fields are invisible to the framework but available to the implementation when the wrapper comes back. + +#### Fresh-copy contract + +Every call to `FindDataAsync` **must** return a fresh `IPersistenceData.Data` object. Two successive calls for the same correlation id must produce two independent references — mutations made to the `Data` of the first call's return value must not propagate to the second call's return value. Both built-in providers (InMemory and MongoDB) comply: `InMemoryProcessManagerFinder` performs a deep clone on every read; `MongoDbProcessManagerFinder` deserialises a new object from the wire. + +Custom implementations that cache and return the same mutable `Data` reference across calls violate this contract. The violation is silent during development (the first call's mutations appear to persist "for free") but causes state corruption when the same saga record is accessed by more than one concurrent message in the same process. + +--- + +### `InsertDataAsync` + +```csharp +Task InsertDataAsync(IProcessManagerData data, CancellationToken cancellationToken = default); +``` + +Persists a freshly-constructed state record the first time a correlation id is seen. + +**Parameters** +- `data` — the new state object; the implementation should derive the storage key from `data.CorrelationId`. +- `cancellationToken` — cancels the insert. + +**Remarks.** Called exactly once per correlation id lifetime. After the first insert, all subsequent state changes go through `UpdateDataAsync`. + +--- + +### `UpdateDataAsync` + +```csharp +Task UpdateDataAsync( + IPersistenceData data, + CancellationToken cancellationToken = default) + where T : class, IProcessManagerData; +``` + +Persists mutations to an existing state record. + +**Parameters** +- `data` — the `IPersistenceData` wrapper previously returned by `FindDataAsync`. The implementation reads concurrency metadata from the wrapper's concrete type to guard against lost updates. +- `cancellationToken` — cancels the update. + +**Remarks.** Implementations using optimistic concurrency should verify that the record's stored version matches the version captured at `FindDataAsync` time. If the versions differ — another handler has written the record in the interim — throw a concurrency exception so the dispatch pipeline can retry. + +--- + +### `DeleteDataAsync` + +```csharp +Task DeleteDataAsync( + IPersistenceData data, + CancellationToken cancellationToken = default) + where T : class, IProcessManagerData; +``` + +Removes the persisted state record, ending the saga's lifetime. + +**Parameters** +- `data` — the wrapper previously returned by `FindDataAsync`. Delete by the storage id or correlation id embedded in the concrete type. +- `cancellationToken` — cancels the delete. + +--- + +## IPersistenceData<T> + +`IPersistenceData` is the thin wrapper that `FindDataAsync` returns and that `UpdateDataAsync` / `DeleteDataAsync` accept. The interface exposes only `Data`; the concrete type carries whatever concurrency metadata the implementation requires. + +```csharp +public interface IPersistenceData where T : class, IProcessManagerData +{ + T Data { get; set; } +} +``` + +**`Data`** — gets or sets the process-manager state object. The handler mutates this in place; the framework writes it back by passing the same wrapper to `UpdateDataAsync`. Because `Data` is mutable, any changes made inside `HandleAsync` are observed by the finder on the next `UpdateDataAsync` call without requiring a separate copy step. + +Implementations add fields such as `int Version`, `string ETag`, or `Guid RowId` on the concrete class. Because the framework only interacts with the interface, those extra fields survive the round-trip from `FindDataAsync` through to `UpdateDataAsync` without the framework touching them. + +--- + +## IVersioned + +`ServiceConnect.Interfaces.IVersioned` exposes the optimistic-concurrency version counter from a wrapper without requiring a concrete-type cast: + +```csharp +public interface IVersioned +{ + long Version { get; } +} +``` + +Both `MemoryData` (the InMemory provider's wrapper) and `MongoDbData` (the MongoDB provider's wrapper) implement `IVersioned`. Use it to read the version number in persistence-agnostic code — for example, in a shared test helper that asserts the version was incremented. + +--- + +## IIdentified + +`ServiceConnect.Interfaces.IIdentified` exposes a stable storage Id from a wrapper without requiring a concrete-type cast: + +```csharp +public interface IIdentified +{ + Guid Id { get; } +} +``` + +Both `MemoryData` and `MongoDbData` implement `IIdentified`. The Id is a storage-level surrogate key — it is distinct from `IProcessManagerData.CorrelationId` (the business correlation key). Use `IIdentified` to extract the Id from an opaque stored row in persistence-agnostic code: logging, diagnostics, or a test helper that verifies the Id is stable across updates. + +**`MemoryData` Id stability contract.** `InsertDataAsync` stamps a fresh `Guid.NewGuid()` Id. Every subsequent `UpdateDataAsync` preserves the same Id. Each `FindDataAsync` returns a deep-cloned wrapper carrying that Id, so the Id you observe via `IIdentified` is identical across successive reads. This mirrors MongoDB's `_id` contract. + +--- + +## InMemory saga store isolation + +`InMemoryProcessManagerFinder` uses a private `SagaProvider` instance, separate from the public `ICacheProvider` / `IKeyValueStore` registered for general cache use by application code. User code consuming `IKeyValueStore` cannot read, modify, or delete saga state through that interface. This isolation matches the MongoDB persistor's behaviour, where saga state lives in dedicated collections that the user-facing API does not expose. + +**Multi-saga limitation.** `FindMatchingItem` iterates every entry in the partitioned saga provider and the keys are bare correlation-id strings (no type prefix). A caller that runs multiple saga types through a single finder instance will see `InvalidOperationException` from `FindData` as soon as the iterator visits a row whose wrapper type does not match `T`. For multi-saga topologies, run one finder instance per saga type or use the MongoDB persistor. + +--- + +## Implementing + +### Concurrency contract + +Multiple handlers may call `FindDataAsync` for the same correlation id concurrently — for example, when two messages arrive together for the same saga instance. Implementations must protect against lost updates using one of: + +- **Optimistic concurrency** — store a `version` integer or ETag. `FindDataAsync` reads and captures it in the returned wrapper. `UpdateDataAsync` issues `UPDATE … WHERE id = @id AND version = @version` and throws `ConcurrencyException` (or equivalent) if zero rows are affected. The dispatch pipeline retries on concurrency failure. +- **Pessimistic locking** — `FindDataAsync` acquires a row-level lock (`SELECT … FOR UPDATE`). The lock is held until the transaction completes in `UpdateDataAsync` or `DeleteDataAsync`. Requires that `FindDataAsync` and the subsequent write run inside the same transaction scope. + +### Not-found contract + +`FindDataAsync` must return `null` when no record exists — never throw a `KeyNotFoundException` or equivalent. The dispatcher distinguishes `null` (first message, call `InsertDataAsync`) from a non-null wrapper (existing saga, call `UpdateDataAsync`). + +### Insert vs update + +`InsertDataAsync` is called only for the first message that starts a saga. All subsequent messages — including the message that completes the saga — go through `FindDataAsync` followed by `UpdateDataAsync` or `DeleteDataAsync`. Implementations must not call `InsertDataAsync` from within `UpdateDataAsync`. + +### Skeletal Postgres implementation sketch + +```csharp +public sealed class PostgresProcessManagerFinder : IProcessManagerFinder +{ + private readonly string _connectionString; + + public async Task?> FindDataAsync( + IProcessManagerPropertyMapper mapper, + Message message, + CancellationToken cancellationToken = default) + where T : class, IProcessManagerData + { + // Production finders walk mapper.Mappings to extract the lookup value; + // we correlate on CorrelationId directly here for brevity. + await using var conn = new NpgsqlConnection(_connectionString); + await conn.OpenAsync(cancellationToken); + + var row = await conn.QuerySingleOrDefaultAsync<(Guid Id, string State, long Version)?>( + "SELECT id, state::text, version FROM process_manager_state WHERE id = @id", + new { id = message.CorrelationId }); + + if (row is null) return null; + + var (_, state, version) = row.Value; + var data = JsonSerializer.Deserialize(state)!; + return new PostgresPersistenceData(data, version); + } + + public async Task UpdateDataAsync( + IPersistenceData data, + CancellationToken cancellationToken = default) + where T : class, IProcessManagerData + { + var wrapper = (PostgresPersistenceData)data; + var state = JsonSerializer.Serialize(data.Data); + await using var conn = new NpgsqlConnection(_connectionString); + await conn.OpenAsync(cancellationToken); + + var rows = await conn.ExecuteAsync( + "UPDATE process_manager_state SET state = @state::jsonb, version = version + 1 WHERE id = @id AND version = @version", + new { id = data.Data.CorrelationId, state, version = wrapper.Version }); + + if (rows == 0) + throw new ConcurrencyException($"Optimistic concurrency failure for saga {data.Data.CorrelationId}."); + } + + // ... InsertDataAsync, DeleteDataAsync omitted for brevity +} +``` + +## Usage + +### Postgres-backed finder with optimistic concurrency + +The following example implements all four members against a `process_manager_state` table with a `version` column. Concurrent updates are detected via `UPDATE … WHERE id = @id AND version = @version`; zero rows affected signals a lost update and throws so the pipeline retries. + +```csharp +// Schema (run once during migration): +// CREATE TABLE process_manager_state ( +// id UUID NOT NULL PRIMARY KEY, +// state JSONB NOT NULL, +// version INTEGER NOT NULL DEFAULT 0, +// updated_at TIMESTAMPTZ NOT NULL DEFAULT now() +// ); + +public sealed class PostgresPersistenceData : IPersistenceData + where T : class, IProcessManagerData +{ + public T Data { get; set; } + public long Version { get; } + + public PostgresPersistenceData(T data, long version) + { + Data = data; + Version = version; + } +} + +public sealed class PostgresProcessManagerFinder : IProcessManagerFinder +{ + private readonly string _connectionString; + private readonly JsonSerializerOptions _jsonOptions; + + public PostgresProcessManagerFinder(string connectionString, JsonSerializerOptions jsonOptions) + { + _connectionString = connectionString; + _jsonOptions = jsonOptions; + } + + public async Task?> FindDataAsync( + IProcessManagerPropertyMapper mapper, + Message message, + CancellationToken cancellationToken = default) + where T : class, IProcessManagerData + { + // Production finders walk mapper.Mappings to extract the lookup value; + // we correlate on CorrelationId directly here for brevity. + await using var conn = new NpgsqlConnection(_connectionString); + await conn.OpenAsync(cancellationToken); + + var row = await conn.QuerySingleOrDefaultAsync<(Guid Id, string State, long Version)?>( + "SELECT id, state::text, version FROM process_manager_state WHERE id = @id", + new { id = message.CorrelationId }); + + if (row is null) + return null; + + var (_, state, version) = row.Value; + var data = JsonSerializer.Deserialize(state, _jsonOptions)!; + return new PostgresPersistenceData(data, version); + } + + public async Task InsertDataAsync( + IProcessManagerData data, + CancellationToken cancellationToken = default) + { + var state = JsonSerializer.Serialize(data, data.GetType(), _jsonOptions); + + await using var conn = new NpgsqlConnection(_connectionString); + await conn.OpenAsync(cancellationToken); + + await conn.ExecuteAsync( + @"INSERT INTO process_manager_state (id, state, version, updated_at) + VALUES (@id, @state::jsonb, 0, now())", + new { id = data.CorrelationId, state }); + } + + public async Task UpdateDataAsync( + IPersistenceData data, + CancellationToken cancellationToken = default) + where T : class, IProcessManagerData + { + var wrapper = (PostgresPersistenceData)data; + var state = JsonSerializer.Serialize(data.Data, _jsonOptions); + + await using var conn = new NpgsqlConnection(_connectionString); + await conn.OpenAsync(cancellationToken); + + var rows = await conn.ExecuteAsync( + @"UPDATE process_manager_state + SET state = @state::jsonb, + version = version + 1, + updated_at = now() + WHERE id = @id AND version = @version", + new { id = data.Data.CorrelationId, state, version = wrapper.Version }); + + if (rows == 0) + throw new ConcurrencyException( + $"Optimistic concurrency failure for saga {data.Data.CorrelationId}. " + + "The record was modified by another handler since it was loaded."); + } + + public async Task DeleteDataAsync( + IPersistenceData data, + CancellationToken cancellationToken = default) + where T : class, IProcessManagerData + { + await using var conn = new NpgsqlConnection(_connectionString); + await conn.OpenAsync(cancellationToken); + + await conn.ExecuteAsync( + "DELETE FROM process_manager_state WHERE id = @id", + new { id = data.Data.CorrelationId }); + } +} +``` + +Register during bus startup: + +```csharp +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(transport => transport.Host = "rabbit.internal.example"); + builder.AddRegistration(services => + services.AddSingleton(_ => new PostgresProcessManagerFinder(connectionString, jsonOptions))); +}); +``` + +When the `PaymentSaga` receives a `PaymentAuthorised` message, the dispatch pipeline calls `FindDataAsync` to load the correlating record, invokes the handler, and on a successful return calls `UpdateDataAsync` with the same wrapper. If another consumer processed a concurrent message and incremented `version` in the interim, `UpdateDataAsync` throws and the pipeline retries the whole handler invocation from `FindDataAsync` again. + +## MongoDB saga store contract + +The MongoDB implementation (`MongoDbProcessManagerFinder`) adds several requirements and behaviours beyond the base interface contract. + +### WriteConcern.Unacknowledged rejected + +If the `IMongoClient` supplied to the MongoDB provider is configured with `WriteConcern.Unacknowledged` (w:0), `MongoDbProcessManagerFinder` throws `InvalidOperationException` during startup — before any consumer host begins polling. Unacknowledged writes disable the optimistic concurrency version checks, which would silently advance the version on missed updates and wedge sagas on the next real conflict. + +The same guard applies to [`ITimeoutStore`](../itimeoutstore/) and [`IAggregatorPersistor`](../iaggregatorpersistor/) MongoDB implementations; see [Persistence Configuration → MongoDB provider contract](/ServiceConnect-CSharp/reference/configuration/ipersistenceconfiguration/#writeconcern-requirement) for the consolidated description. + +### CorrelationId uniqueness via pre-created unique index + +A startup `IHostedService` pre-creates a unique index on `CorrelationId` for each saga data type registered via `AddProcessManager` before consumer polling starts. This closes the cross-process startup race that could admit duplicate saga rows. The index creation is idempotent — running it again on an existing index is safe. + +### Property-hierarchy type coercion + +`FindDataAsync` wraps the message-side correlation property value in `Expression.Convert` against the saga property's declared type before building the filter. Without this, a message-side `int` matched against a saga-side `long`, `Nullable`, or interface-typed property silently produces zero results. The conversion is applied for all property mappings registered via `IProcessManagerPropertyMapper`. + +### Generic saga collection-name sanitization + +Mongo collection names are derived from `typeof(T).FullName`. For generic saga types, `FullName` contains characters (`+`, backticks, `[`, `]`, `,`) that are illegal in mongosh autocomplete and many Mongo tooling contexts. The MongoDB provider sanitizes all of these characters to `_`. + +**Migration required for existing deployments with generic saga types.** If your saga data type is generic (for example, `OrderSagaData`), the unsanitised collection name used by earlier releases contained these illegal characters. After upgrading, rename the existing collection to the sanitized form before the new version starts consuming: + +```javascript +db.runCommand({ renameCollection: "mydb.OrderSagaData`1[[OrderState, MyAssembly]]", + to: "mydb.OrderSagaData_1__OrderState__MyAssembly__" }) +``` + +Run this during a maintenance window or blue/green cutover. The exact old and new names depend on the type's `FullName`; apply the substitution rule (`+`, `` ` ``, `[`, `]`, `,` → `_`) to derive both sides. + +## See also + +- [Process Manager](/ServiceConnect-CSharp/learn/messaging-patterns/process-manager/) — concept +- [`IProcessHandler`](../../../process-managers/iprocesshandler/) — related reference +- [`IProcessManagerData`](../../../process-managers/iprocessmanagerdata/) — related reference +- [`IPersistenceConfiguration`](../../../configuration/ipersistenceconfiguration/) — related reference diff --git a/website/src/content/docs/reference/extension-points/persistence/itimeoutstore.mdx b/website/src/content/docs/reference/extension-points/persistence/itimeoutstore.mdx new file mode 100644 index 000000000..1bd366bf8 --- /dev/null +++ b/website/src/content/docs/reference/extension-points/persistence/itimeoutstore.mdx @@ -0,0 +1,268 @@ +--- +title: ITimeoutStore +description: Persists scheduled timeouts for later dispatch. Lease-aware single interface for both single-instance and multi-instance deployments. +--- + +import { Aside } from '@astrojs/starlight/components'; + +## Overview + +`ITimeoutStore` persists scheduled timeout messages and delivers them in batches when they become due. The timeout manager polls `GetTimeoutsBatchAsync` on a cadence driven by `BusConfiguration.ProcessManagerTimeoutPollInterval`, inserts new timeouts via `InsertTimeoutAsync`, and commits or rolls back each dispatch with `RemoveDispatchedTimeoutAsync` or `ReleaseDispatchedTimeoutAsync`. + +`ITimeoutStore` covers both single-instance and multi-instance (active-active) deployments. Remove and release operations accept an optional `Guid? lockOwner` — when supplied, the operation is lease-checked and a worker that has lost its lease observes `ConcurrencyException` so the row is not double-dispatched. When `lockOwner` is null, the operation is unconditional and the lease check is skipped. + +See [Process Manager](/ServiceConnect-CSharp/learn/messaging-patterns/process-manager/) for the saga and timeout conceptual model. + +## Reference + +```csharp +public interface ITimeoutStore +{ + Task InsertTimeoutAsync(TimeoutData timeoutData, CancellationToken cancellationToken = default); + Task GetTimeoutsBatchAsync(int? batchSize = null, CancellationToken cancellationToken = default); + Task RemoveDispatchedTimeoutAsync(Guid id, Guid? lockOwner = null, CancellationToken cancellationToken = default); + Task ReleaseDispatchedTimeoutAsync(Guid id, Guid? lockOwner = null, CancellationToken cancellationToken = default); + Task ReapStaleLeasesAsync(CancellationToken cancellationToken = default); // DIM — returns 0L +} +``` + +`TimeoutData` carries the timeout identifier, target destination, scheduled fire time, and an `IReadOnlyDictionary` headers bag. Implementations that construct `TimeoutData` pass any headers via the init accessor; post-construction mutation is not supported. `TimeoutsBatch` wraps a list of due `TimeoutData` records. Callers re-poll on their own cadence (typically `BusConfiguration.ProcessManagerTimeoutPollInterval`). + +--- + +### `InsertTimeoutAsync` + +```csharp +Task InsertTimeoutAsync(TimeoutData timeoutData, CancellationToken cancellationToken = default); +``` + +Inserts a timeout into the store. + +**Parameters** +- `timeoutData` — the timeout to persist. +- `cancellationToken` — a token that cancels the operation. + +--- + +### `GetTimeoutsBatchAsync` + +```csharp +Task GetTimeoutsBatchAsync(int? batchSize = null, CancellationToken cancellationToken = default); +``` + +Loads the next batch of due timeouts. + +**Parameters** +- `batchSize` — when supplied, caps the number of timeouts returned in a single poll. Must be greater than zero. When null, the persistor applies its default cap (MongoDB uses `MongoDbPersistenceOptions.TimeoutBatchSize`; the in-memory store returns all due timeouts). +- `cancellationToken` — a token that cancels the operation. + +**Returns** a `TimeoutsBatch` whose `DueTimeouts` list contains the timeouts ready to fire. Callers re-poll on their own cadence (typically `BusConfiguration.ProcessManagerTimeoutPollInterval`). + +**Throws** `ArgumentOutOfRangeException` when `batchSize` is non-null and not greater than zero. + +--- + +### `RemoveDispatchedTimeoutAsync` + +```csharp +Task RemoveDispatchedTimeoutAsync(Guid id, Guid? lockOwner = null, CancellationToken cancellationToken = default); +``` + +Removes a timeout after it has been dispatched successfully. + +**Parameters** +- `id` — the timeout identifier. +- `lockOwner` — when non-null, the row is removed only if its current lock owner matches; when null, the row is removed unconditionally. +- `cancellationToken` — a token that cancels the operation. + +**Throws** `ConcurrencyException` when `lockOwner` is supplied and the row's current owner does not match (or the row's lease has expired and been reclaimed by another worker). + +**Remarks.** Call this after the timeout message has been delivered to the downstream consumer and acknowledged. Pass `lockOwner` when running multiple bus instances against a shared store, so a worker whose lease was reaped cannot accidentally delete a row that another worker has since claimed. + +--- + +### `ReleaseDispatchedTimeoutAsync` + +```csharp +Task ReleaseDispatchedTimeoutAsync(Guid id, Guid? lockOwner = null, CancellationToken cancellationToken = default); +``` + +Releases a dispatched timeout so it may be retried later. + +**Parameters** +- `id` — the timeout identifier. +- `lockOwner` — when non-null, the row is released only if its current lock owner matches; when null, the row is released unconditionally. +- `cancellationToken` — a token that cancels the operation. + +**Throws** `ConcurrencyException` when `lockOwner` is supplied and the row's current owner does not match. + +**Remarks.** Call this when dispatch fails — the consumer rejected the message, transport delivery failed, or the timeout is being requeued for retry. After a successful release the timeout is visible on the next `GetTimeoutsBatchAsync` call. + +--- + +### `ReapStaleLeasesAsync` + +```csharp +Task ReapStaleLeasesAsync(CancellationToken cancellationToken = default); +``` + +Reclaims rows whose lease has expired but whose row is still flagged as locked — typically because a worker crashed mid-dispatch or a broker partition outlasted the lease window. + +**Parameters** +- `cancellationToken` — cancels the operation. + +**Returns** the number of rows whose lease was reclaimed as a `long`. + +**Default implementation.** Returns `Task.FromResult(0L)` — a no-op. Persistors whose `GetTimeoutsBatchAsync` already reclaims expired leases as a side-effect (the in-memory store) can leave this default in place. + +**Override guidance.** Persistors with explicit lease rows (MongoDB) should override with a single batched update that clears the lock flag for all rows where `LockExpiresAt <= UtcNow`. Operators running such persistors should call `ReapStaleLeasesAsync` on a timer at roughly `LockLeaseDuration / 4` cadence to reclaim rows held by crashed workers promptly rather than waiting for the natural `GetTimeoutsBatchAsync` recovery path. + +**Remarks.** The natural-recovery path is the next `GetTimeoutsBatchAsync` poll, whose filter accepts both unlocked rows and locked-but-expired rows — operators don't need to call this method for routine recovery. It exists for on-demand cleanup from an admin endpoint or a one-off script when a deployment wants to unstick the queue without waiting for the next poll cycle. + +--- + +## Implementing + +### Invariants + +1. **Concurrent callers.** `GetTimeoutsBatchAsync` must not return the same timeout to two concurrent callers without locking. The built-in `InMemoryTimeoutStore` uses a `ReaderWriterLockSlim` and a per-record lease; a SQL implementation should use `FOR UPDATE SKIP LOCKED` (Postgres) or an equivalent. In clustered setups where multiple bus instances share the same persistent store, honour the optional `lockOwner` on remove/release so lease ownership is verified before mutating the row. + +2. **Lease ownership.** When the caller supplies a `lockOwner`, the persistor must throw `ConcurrencyException` if the stored owner has changed (or the lease has expired and been reaped). This is what closes the duplicate-dispatch race in active-active deployments. + +3. **Unconditional path.** When `lockOwner` is null, the operation is unconditional — a second call on an already-removed row is a silent no-op, matching idempotent retry semantics on transient storage failures. + +### Lease semantics + +Remove and release operations accept an optional lock owner. When supplied, the operation is lease-checked: a worker that no longer holds a valid lease observes `ConcurrencyException` so the row is not double-dispatched by a second worker that reclaimed it. + +Both the Mongo and InMemory persistors honour identical semantics. The `LockLeaseDuration` setting — `MongoDbPersistenceOptions.TimeoutLockLeaseDuration` or `InMemoryPersistenceOptions.LockLeaseDuration` — governs how long a worker may hold a row before the reaper reclaims it. Both default to five minutes. + +Operators running the Mongo persistor should call `ReapStaleLeasesAsync` on a timer at roughly `LockLeaseDuration / 4` cadence to reclaim rows held by crashed workers promptly, rather than waiting for the natural `GetTimeoutsBatchAsync` recovery path. + +### Skeletal in-memory implementation + +The following example is adapted from the `InMemoryTimeoutStore` shipped with the library (in `ServiceConnect.Persistence.InMemory`), which is the reference single-instance implementation. It stores timeouts in a sorted set, uses a write lock for all mutations, and reads its lease duration from `InMemoryPersistenceOptions` so that a crashed dispatcher does not hold records indefinitely. A minimal third-party implementation that does NOT need lease-aware semantics (single-instance only) can ignore the `lockOwner` parameter and omit `ReapStaleLeasesAsync` (the DIM default returns `0L`): + +```csharp +public sealed class InMemoryTimeoutStore : ITimeoutStore +{ + private readonly ReaderWriterLockSlim _lock = new(); + private readonly SortedSet _index = new(TimeoutEntryComparer.Instance); + private readonly Dictionary _byId = new(); + private readonly TimeSpan _lockLeaseDuration; + + public InMemoryTimeoutStore(InMemoryPersistenceOptions options) + { + ArgumentNullException.ThrowIfNull(options); + if (options.LockLeaseDuration <= TimeSpan.Zero) + throw new ArgumentOutOfRangeException(nameof(options), "LockLeaseDuration must be positive."); + _lockLeaseDuration = options.LockLeaseDuration; + } + + public Task InsertTimeoutAsync(TimeoutData timeoutData, CancellationToken cancellationToken = default) + { + _lock.EnterWriteLock(); + try + { + var entry = new TimeoutEntry(timeoutData.Time, timeoutData.Id, timeoutData); + _byId[timeoutData.Id] = entry; + _index.Add(entry); + } + finally { _lock.ExitWriteLock(); } + return Task.CompletedTask; + } + + public Task GetTimeoutsBatchAsync(int? batchSize = null, CancellationToken cancellationToken = default) + { + if (batchSize is not null && batchSize <= 0) + throw new ArgumentOutOfRangeException(nameof(batchSize), "batchSize must be greater than zero."); + + var batch = new TimeoutsBatch { DueTimeouts = [] }; + var utcNow = DateTimeOffset.UtcNow; + var cap = batchSize ?? int.MaxValue; + + _lock.EnterWriteLock(); + try + { + foreach (var entry in _index) + { + if (batch.DueTimeouts.Count >= cap) break; + if (entry.Time <= utcNow && (!entry.Data.Locked || entry.Data.LockExpiresAt <= utcNow)) + { + entry.Data.Locked = true; + entry.Data.LockExpiresAt = utcNow + _lockLeaseDuration; + batch.DueTimeouts.Add(entry.Data); + } + else if (entry.Time > utcNow) + { + break; + } + } + } + finally { _lock.ExitWriteLock(); } + + return Task.FromResult(batch); + } + + public Task RemoveDispatchedTimeoutAsync(Guid id, Guid? lockOwner = null, CancellationToken cancellationToken = default) + { + _lock.EnterWriteLock(); + try + { + if (_byId.TryGetValue(id, out var entry)) + { + _byId.Remove(id); + _index.Remove(entry); + } + } + finally { _lock.ExitWriteLock(); } + return Task.CompletedTask; + } + + public Task ReleaseDispatchedTimeoutAsync(Guid id, Guid? lockOwner = null, CancellationToken cancellationToken = default) + { + _lock.EnterWriteLock(); + try + { + if (_byId.TryGetValue(id, out var entry)) + { + entry.Data.Locked = false; + entry.Data.LockExpiresAt = null; + } + } + finally { _lock.ExitWriteLock(); } + return Task.CompletedTask; + } +} +``` + +For multi-instance deployments, honour the `lockOwner` on remove/release: throw `ConcurrencyException` if the stored owner has changed since the worker claimed the row. + +## Usage + +Register a custom `ITimeoutStore` implementation during bus startup: + +```csharp +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(transport => transport.Host = "rabbit.internal.example"); + builder.AddRegistration(services => + { + services.AddSingleton(); + }); +}); +``` + +## MongoDB timeout-store contract + +### WriteConcern.Unacknowledged rejected + +`MongoDbTimeoutStore` requires the `IMongoClient` to be configured with an acknowledged write concern (`w:1` or higher). Construction throws `InvalidOperationException` for `WriteConcern.Unacknowledged`. Under `w:0`, lock-aware delete and release operations silently no-op-succeed — converting a stale-lease no-op into an apparent successful delete and admitting duplicate timeout dispatch. + +See [Persistence Configuration → MongoDB provider contract](/ServiceConnect-CSharp/reference/configuration/ipersistenceconfiguration/#writeconcern-requirement) for the full guard set across all three Mongo stores. + +## See also + +- [`IAggregatorPersistor`](../iaggregatorpersistor/) — related reference +- [`IProcessManagerFinder`](../iprocessmanagerfinder/) — related reference +- [Process Manager](../../../../learn/messaging-patterns/process-manager/) — concept diff --git a/website/src/content/docs/reference/extension-points/registry/ihandlerregistry.mdx b/website/src/content/docs/reference/extension-points/registry/ihandlerregistry.mdx new file mode 100644 index 000000000..7497bf8ad --- /dev/null +++ b/website/src/content/docs/reference/extension-points/registry/ihandlerregistry.mdx @@ -0,0 +1,132 @@ +--- +title: IHandlerRegistry +description: A marker interface that triggers eager DI resolution at startup to validate handler configuration before the first message arrives. +--- + +import { Aside } from '@astrojs/starlight/components'; + +## Overview + +`IHandlerRegistry` is a marker interface with no members. Its sole purpose is to give the dependency-injection container a well-known type to query at startup. The framework resolves every registered `IHandlerRegistry` implementation eagerly during bus initialisation. Because DI resolution runs the constructor, implementations can encode validation logic there — verifying that all expected message handlers are present — and fail startup loudly rather than failing silently at first-message delivery. + +Most consumers of ServiceConnect never need to implement this interface. It is documented here for completeness and for teams that want to add startup-time consistency checks to their handler bindings. + +See [Handlers](/ServiceConnect-CSharp/learn/core-concepts/handlers/) for the broader handler model. + +## Reference + +`IHandlerRegistry` has no members. It is a marker used during startup to trigger eager resolution of implementations, which validates handler configuration early rather than at first-message delivery. The full source is: + +```csharp +namespace ServiceConnect.Interfaces; + +/// +/// Marker interface for internal handler registries that need eager initialization. +/// Implementations are resolved during startup to trigger validation of handler configurations. +/// +public interface IHandlerRegistry +{ +} +``` + +## Implementing + +### Eager initialisation + +The DI container resolves all `IHandlerRegistry` implementations at bus startup, before any message is consumed. If a constructor throws, startup fails immediately with a clear exception. This surfaces misconfigured handler bindings — missing registrations, wrong scope, incorrect type mappings — as a hard start-up error rather than an intermittent runtime failure. + +### Typical content + +Implementations hold no persistent state beyond the validation logic executed in their constructor. A typical implementation receives an `IServiceProvider` through dependency injection and uses it to verify that the expected `IMessageHandler` types are present. If any are missing, the constructor throws a descriptive exception. + +Because construction is single-threaded during startup, thread-safety inside the constructor is not a concern. + +## Usage + +### Startup validation registry + +The following example registers a handler registry that inspects the `IServiceProvider` on startup and fails fast if any `IMessageHandler` required by the order processing pipeline is absent. + +```csharp +using Microsoft.Extensions.DependencyInjection; +using ServiceConnect.Interfaces; + +public sealed class StartupValidatingHandlerRegistry : IHandlerRegistry +{ + private static readonly Type[] RequiredHandlers = + [ + typeof(IMessageHandler), + typeof(IMessageHandler), + typeof(IMessageHandler), + ]; + + public StartupValidatingHandlerRegistry(IServiceProvider services) + { + var missing = RequiredHandlers + .Where(t => services.GetService(t) is null) + .Select(t => t.Name) + .ToList(); + + if (missing.Count > 0) + throw new InvalidOperationException( + "The following message handlers are required but not registered: " + + string.Join(", ", missing)); + } +} +``` + +Register it during bus startup: + +```csharp +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(transport => transport.Host = "rabbit.internal.example"); + builder.AddRegistration(svc => + svc.AddSingleton()); +}); +``` + +When the bus starts, the framework resolves `StartupValidatingHandlerRegistry`, which runs the constructor. If `OrderService` forgot to register its `ShipmentDispatched` handler, startup throws an `InvalidOperationException` immediately — before any connection to the broker is made and before the service starts accepting traffic. + + + +## `HandlerInterfaceKind` enum + +`HandlerInterfaceKind` discriminates which handler interface a `HandlerReference` was produced for. A single class that implements multiple handler interfaces produces one `HandlerReference` per interface, each carrying the appropriate `Kind`. + +```csharp +namespace ServiceConnect.Interfaces; + +public enum HandlerInterfaceKind +{ + /// + /// The handler implements . + /// + MessageHandler, + + /// + /// The handler implements . + /// + ProcessHandler, + + /// + /// The handler implements . + /// + StreamHandler, + + /// + /// The handler extends . + /// + Aggregator, +} +``` + +Custom `IHandlerRegistry` implementations and callers that inspect the registry's `HandlerReference` list use this enum to discriminate which handler interface a reference was produced for — for example, to apply different dispatch logic for `ProcessHandler` references versus `MessageHandler` references, or to filter the list to only `Aggregator` references when querying aggregator state. + +## See also + +- [Handlers](/ServiceConnect-CSharp/learn/core-concepts/handlers/) — the handler model and registration conventions +- [`IMessageDispatcher`](../imessagedispatcher/) — the orchestrator that drives message dispatch at runtime +- [`IMessageProcessor`](../imessageprocessor/) — the chain-of-responsibility hook invoked during dispatch diff --git a/website/src/content/docs/reference/extension-points/registry/imessagedispatcher.mdx b/website/src/content/docs/reference/extension-points/registry/imessagedispatcher.mdx new file mode 100644 index 000000000..4370d8944 --- /dev/null +++ b/website/src/content/docs/reference/extension-points/registry/imessagedispatcher.mdx @@ -0,0 +1,188 @@ +--- +title: IMessageDispatcher +description: The top-level orchestrator invoked by the transport consumer for each incoming message — builds the envelope, runs filters and processors, deserializes, and returns a ConsumeEventResult. +--- + +import { Aside } from '@astrojs/starlight/components'; + +## Overview + +`IMessageDispatcher` is the top-level orchestrator that the transport consumer calls for every incoming message. When a raw delivery arrives from the broker, the framework invokes `DispatchAsync` with the raw bytes, the wire type name, and the transport headers. From that point on, the dispatcher is responsible for the complete consume pipeline: + +1. Extract `FullTypeName` from headers and build the `Envelope`. Throw if the header is absent. +2. Run `IMessageProcessor` entries where `RunBeforeDeserialization == true`. If any returns `ProcessResult.Handled`, short-circuit with `Success = true`. +3. Resolve the CLR `Type` via `IMessageTypeRegistry.TryResolve(messageType, out type)`. If the type is not registered and the message is not a reply, return `Success = false`. +4. Run `IFilter` before-consuming filters. If any returns `false`, short-circuit with `Success = true`. +5. If the delivery carries a `ResponseMessageId` header and a `ReplyProcessor` is registered, invoke it. `Handled` → `Success = true`; otherwise return `Success = false` with an exception. +6. Deserialise the message body via `IMessageSerializer`. +7. Run `IMessageProcessor` entries where `RunBeforeDeserialization == false` through the `IMessageProcessingMiddleware` chain. +8. Run after-consuming filters in a `finally` block so they fire even on failure. +9. Return a `ConsumeEventResult` describing the outcome. + +ServiceConnect ships a default implementation (`ServiceConnect.Services.MessageDispatcher`) that follows this exact order. Replace it only when every other extension point — `IFilter`, `IMessageProcessor`, `IMessageProcessingMiddleware` — is insufficient for your use case. + +See [Handlers](/ServiceConnect-CSharp/learn/core-concepts/handlers/) for the broader dispatch model. + +## Reference + +### `DispatchAsync` + +```csharp +Task DispatchAsync( + ReadOnlyMemory messageBytes, + string messageType, + IReadOnlyDictionary headers, + CancellationToken cancellationToken = default); +``` + +Executes the full consume pipeline for one message delivery. + +**Parameters** + +- `messageBytes` — the raw serialised payload as received from the broker. +- `messageType` — the wire type name of the message (for example `"OrderService.Messages.OrderPlaced"`). Used to resolve the CLR type via `IMessageTypeRegistry`. +- `headers` — the transport headers accompanying the delivery. Values are typed as `object` because some broker clients expose typed header values rather than plain strings. +- `cancellationToken` — propagated from the transport consumer; signals that processing should stop cleanly. + +**Returns.** A `ConsumeEventResult` describing whether the message was processed successfully. `Success = true` causes the transport to acknowledge the delivery; `Success = false` or a non-null `Exception` causes the transport to nack, requeue, or dead-letter according to its policy. + +## Implementing + +### Order of operations + +A custom `IMessageDispatcher` must preserve the default order of operations. The built-in filters, processors, and middleware all assume this sequence; departing from it produces undefined behaviour: + +1. Extract `FullTypeName` header; throw `InvalidOperationException` if absent. Build `Envelope`. +2. Pre-deserialization processors (`RunBeforeDeserialization == true`) — short-circuit with `Success = true` on `ProcessResult.Handled`. +3. Type resolution via `IMessageTypeRegistry` — return `Success = false` for unknown, non-reply types. +4. Before-consuming filters — short-circuit with `Success = true` on `false`. +5. Reply short-circuit — if `ResponseMessageId` header is present and a `ReplyProcessor` is registered, invoke it. `Handled` → `Success = true`; otherwise return `Success = false` with an exception. +6. Deserialise via `IMessageSerializer`. +7. Post-deserialization processors (`RunBeforeDeserialization == false`) through the middleware chain. +8. After-consuming filters in `finally`. +9. Return `ConsumeEventResult`. + +### Error-handling contract + +Exceptions thrown inside `DispatchAsync` should be caught and surfaced via `ConsumeEventResult { Success = false, Exception = ex }`. The transport layer reads `Success` and `Exception` to decide the ack/nack outcome; if an exception escapes the method entirely, the transport has no structured way to act on it and may crash the consumer loop. Catch at the outermost boundary and convert. + +### After-filter guarantee + +After-consuming filters must run in a `finally` block, unconditionally. They carry diagnostics and cleanup logic (trace span completion, metrics recording, resource release) that must fire even when processing fails. Omitting the `finally` wrapper is a silent correctness bug. + +### Observability + +The dispatcher is the natural home for a root `ActivitySource` span that wraps the entire consume pipeline. Starting the activity before step 1 and stopping it in the same `finally` as the after-consuming filters gives a single, bounded span covering every phase of message processing. + +### Lifetime + +Register a custom `IMessageDispatcher` as a **singleton**. The dispatcher is invoked on every message delivery; registering as transient or scoped creates unnecessary allocations on a hot path. The default `MessageDispatcher` implementation is registered as a singleton. + +### Skeletal stub + +```csharp +using System.Diagnostics; +using ServiceConnect.Interfaces; + +public sealed class CustomMessageDispatcher : IMessageDispatcher +{ + private readonly IMessageTypeRegistry _typeRegistry; + private readonly IMessageSerializer _serializer; + + public CustomMessageDispatcher( + IMessageTypeRegistry typeRegistry, + IMessageSerializer serializer) + { + _typeRegistry = typeRegistry; + _serializer = serializer; + } + + public async Task DispatchAsync( + ReadOnlyMemory messageBytes, + string messageType, + IReadOnlyDictionary headers, + CancellationToken cancellationToken = default) + { + try + { + // 1–7: implement full pipeline here. + throw new NotImplementedException(); + } + catch (Exception ex) + { + return new ConsumeEventResult { Success = false, Exception = ex }; + } + } +} +``` + +## Usage + +### Tracing dispatcher with a root Activity span + +The following example delegates to the default `IMessageDispatcher` and wraps it in a single root `Activity` that covers the entire consume pipeline. Because it does not re-implement the pipeline, only the root span is available — not per-phase spans. That is the right trade-off when all you need is one bounded trace entry per delivery. + +```csharp +using System.Diagnostics; +using ServiceConnect.Interfaces; + +public sealed class TracingMessageDispatcher : IMessageDispatcher +{ + private static readonly ActivitySource Source = new("OrderService.Messaging"); + + private readonly IMessageDispatcher _inner; + + public TracingMessageDispatcher(IMessageDispatcher inner) + => _inner = inner; + + public async Task DispatchAsync( + ReadOnlyMemory messageBytes, + string messageType, + IReadOnlyDictionary headers, + CancellationToken cancellationToken = default) + { + using var root = Source.StartActivity( + $"consume {messageType}", + ActivityKind.Consumer); + + root?.SetTag("messaging.message_type", messageType); + + ConsumeEventResult result; + try + { + result = await _inner.DispatchAsync(messageBytes, messageType, headers, cancellationToken); + } + catch (Exception ex) + { + root?.SetStatus(ActivityStatusCode.Error, ex.Message); + return new ConsumeEventResult { Success = false, Exception = ex }; + } + + if (!result.Success) + root?.SetStatus(ActivityStatusCode.Error, result.Exception?.Message ?? "dispatch failed"); + + return result; + } +} +``` + +Register the custom dispatcher during bus startup. Registering a custom `IMessageDispatcher` replaces the default implementation entirely: + +```csharp +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(transport => transport.Host = "rabbit.internal.example"); + builder.AddRegistration(svc => + svc.AddSingleton()); +}); +``` + + + +## See also + +- [Handlers](/ServiceConnect-CSharp/learn/core-concepts/handlers/) — the handler model and how dispatch reaches handler invocation +- [`IHandlerRegistry`](../ihandlerregistry/) — the marker interface for startup-time handler validation +- [`IMessageProcessor`](../imessageprocessor/) — the chain-of-responsibility hook invoked at each phase of dispatch diff --git a/website/src/content/docs/reference/extension-points/registry/imessageprocessor.mdx b/website/src/content/docs/reference/extension-points/registry/imessageprocessor.mdx new file mode 100644 index 000000000..38e83076c --- /dev/null +++ b/website/src/content/docs/reference/extension-points/registry/imessageprocessor.mdx @@ -0,0 +1,205 @@ +--- +title: IMessageProcessor +description: A chain-of-responsibility hook invoked by IMessageDispatcher — return Handled to short-circuit or NotHandled to let the next processor try. +--- + +import { Aside } from '@astrojs/starlight/components'; + +## Overview + +`IMessageProcessor` is a chain-of-responsibility hook that `IMessageDispatcher` invokes during the consume pipeline. Each processor participates in exactly one phase — pre-deserialization if `RunBeforeDeserialization` returns `true`, post-deserialization otherwise — never both. The dispatcher runs the pre-deserialization iteration first, then (after type resolution, before-consuming filters, and deserialization) runs the post-deserialization iteration. Multiple implementations can be registered; within each phase the dispatcher iterates them in DI registration order and short-circuits on the first that returns `ProcessResult.Handled`. + +Built-in processors handle the framework's own concerns — reply routing, aggregator accumulation, saga dispatch, stream delivery, and standard handler invocation. Custom processors extend the same chain to implement bespoke consume patterns without replacing the dispatcher or modifying existing processors. + +Typical reasons to add a custom `IMessageProcessor`: + +- A header-driven short-circuit for deprecated wire versions that should be silently dropped. +- Custom routing logic that redirects messages before the handler chain runs. +- A tracing processor that records per-phase activity IDs alongside handler dispatch. + +See [Error Handling](/ServiceConnect-CSharp/learn/operations/error-handling/) for how processor failures interact with the nack and retry pipeline. + +## Reference + +### `ProcessResult` + +```csharp +public enum ProcessResult +{ + Handled, + NotHandled +} +``` + +The return value that controls whether the dispatcher continues iterating processors. + +- `Handled` — the processor consumed the message; the dispatcher stops iterating and no subsequent processor runs for this delivery. +- `NotHandled` — the processor did not act on the message; the dispatcher continues to the next registered processor. + +--- + +### `RunBeforeDeserialization` + +```csharp +bool RunBeforeDeserialization => false; +``` + +When `true`, this processor runs before the message body is deserialized. The default implementation returns `false`. Override and return `true` to opt into pre-deserialization execution. + +Pre-deserialization processors receive `message = null`; `messageType` is whatever value the dispatcher chooses to pass at this phase. The bundled default dispatcher passes `typeof(Message)`, but a custom `IMessageDispatcher` is free to pass a more specific resolved type if it can do so cheaply. Treat `messageType` as informational only in this phase — code that needs the concrete CLR type should opt out of pre-deserialization processing and let the dispatcher resolve the type itself. + +--- + +### `ProcessAsync` + +```csharp +Task ProcessAsync( + ReadOnlyMemory messageBytes, + Type messageType, + object? message, + IDictionary headers, + Envelope envelope, + CancellationToken cancellationToken = default); +``` + +Processes one message delivery within the dispatcher's pipeline. + +**Parameters** + +- `messageBytes` — the raw serialised payload. Available in both pre- and post-deserialization phases. +- `messageType` — the resolved CLR `Type` for the message. After deserialization it is the concrete message type (for example `typeof(OrderPlaced)`). In the pre-deserialization phase the value is dispatcher-defined; the bundled default dispatcher passes `typeof(Message)` as a placeholder. +- `message` — the deserialized message instance, or `null` for pre-deserialization processors. +- `headers` — the transport headers accompanying the delivery. +- `envelope` — the constructed `Envelope` containing correlation id, reply address, and other routing metadata. +- `cancellationToken` — propagated from the transport consumer. + +**Returns.** `ProcessResult.Handled` to stop further processor iteration, or `ProcessResult.NotHandled` to continue. + +## Implementing + +### Ordering + +Processors are iterated in DI registration order. Register processors in the order you want them to run. Pre-deserialization processors are always iterated before post-deserialization processors, regardless of registration order. + +### Pre- vs post-deserialization + +| Phase | `RunBeforeDeserialization` | `message` | `messageType` | +|---|---|---|---| +| Pre-deserialization | `true` | `null` | `typeof(Message)` | +| Post-deserialization | `false` (default) | deserialized instance | concrete type | + +Use the pre-deserialization phase for: + +- Header-driven short-circuits where you want to avoid the cost of deserialization entirely. +- Raw-bytes inspection or routing based on wire format metadata. + +Use the post-deserialization phase for: + +- Logic that needs the strongly typed message object. +- Aggregation, saga dispatch, handler invocation, or reply routing. + +### Short-circuit semantics + +Returning `ProcessResult.Handled` prevents all subsequent processors — including the built-in handler processor — from running. Use this intentionally. If you return `Handled` from a custom processor but the message was not actually delivered to a handler, the transport will still acknowledge it to the broker (because `Success = true`), and the message will be silently dropped. + +### Error contract + +Exceptions thrown from `ProcessAsync` bubble to `IMessageDispatcher`, which converts them to `ConsumeEventResult { Success = false, Exception = ex }`. The transport then nacks or dead-letters the delivery. Do not catch exceptions inside a processor unless you plan to recover and return a meaningful `ProcessResult`. Swallowing exceptions here masks failures and produces confusing ack behaviour. + +### Skeletal stub + +```csharp +using ServiceConnect.Interfaces; + +public sealed class CustomMessageProcessor : IMessageProcessor +{ + // Override to true to run before deserialization. + public bool RunBeforeDeserialization => false; + + public Task ProcessAsync( + ReadOnlyMemory messageBytes, + Type messageType, + object? message, + IDictionary headers, + Envelope envelope, + CancellationToken cancellationToken = default) + { + // Return Handled to stop the chain; NotHandled to continue. + return Task.FromResult(ProcessResult.NotHandled); + } +} +``` + +## Usage + +### Header-driven short-circuit for deprecated wire versions + +The following processor drops messages that carry an unsupported `X-Wire-Version` header. It runs before deserialization — there is no point paying the deserialization cost for messages that will be discarded. + +```csharp +using Microsoft.Extensions.Logging; +using ServiceConnect.Interfaces; + +public sealed class DeprecatedVersionProcessor : IMessageProcessor +{ + private const string WireVersionHeader = "X-Wire-Version"; + private const int MinSupportedVersion = 2; + + private readonly ILogger _logger; + + public DeprecatedVersionProcessor(ILogger logger) + => _logger = logger; + + // Run before deserialization — no point paying the cost for deprecated messages. + public bool RunBeforeDeserialization => true; + + public Task ProcessAsync( + ReadOnlyMemory messageBytes, + Type messageType, + object? message, + IDictionary headers, + Envelope envelope, + CancellationToken cancellationToken = default) + { + if (headers.TryGetValue(WireVersionHeader, out var raw) + && int.TryParse(raw?.ToString(), out var version) + && version < MinSupportedVersion) + { + _logger.LogWarning( + "Dropping message with unsupported wire version {Version} " + + "(minimum supported: {Min}). CorrelationId: {CorrelationId}", + version, MinSupportedVersion, envelope.CorrelationId); + + // Return Handled to short-circuit — no further processors or handlers run. + return Task.FromResult(ProcessResult.Handled); + } + + // Version is acceptable; let the standard processor chain continue. + return Task.FromResult(ProcessResult.NotHandled); + } +} +``` + +Register the processor during bus startup. Processors are iterated in registration order, so placing this one first ensures deprecated messages are dropped before any other work: + +```csharp +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(transport => transport.Host = "rabbit.internal.example"); + builder.AddRegistration(svc => + svc.AddSingleton()); +}); +``` + +When `OrderService` receives an `OrderPlaced` message carrying `X-Wire-Version: 1`, `DeprecatedVersionProcessor` fires before deserialization, logs the drop, and returns `Handled`. The transport acknowledges the delivery (it was processed, just not dispatched), and no subsequent processor runs. Messages with version 2 or higher pass through transparently. + + + +## See also + +- [Error Handling](/ServiceConnect-CSharp/learn/operations/error-handling/) — how processor failures interact with retry and dead-letter policy +- [`IMessageDispatcher`](../imessagedispatcher/) — the orchestrator that iterates processors +- [`IHandlerRegistry`](../ihandlerregistry/) — the marker interface for startup-time handler validation +- [`IMessageProcessingMiddleware`](../../../filters/imessageprocessingmiddleware/) — the middleware chain that wraps post-deserialization processor execution diff --git a/website/src/content/docs/reference/extension-points/serialization/imessageserializer.mdx b/website/src/content/docs/reference/extension-points/serialization/imessageserializer.mdx new file mode 100644 index 000000000..8bf58f6a8 --- /dev/null +++ b/website/src/content/docs/reference/extension-points/serialization/imessageserializer.mdx @@ -0,0 +1,231 @@ +--- +title: IMessageSerializer +description: The contract for converting CLR Message objects to and from bytes — replace to wire a binary protocol such as Protobuf or MessagePack. +--- + +import { Aside } from '@astrojs/starlight/components'; + +## Overview + +`IMessageSerializer` is the interface the framework calls to turn a CLR `Message` object into bytes on the way out and back into a typed object on the way in. The shipped default is JSON-based (`SystemTextJsonMessageSerializer`, internal to the framework). Replace it when you need a binary wire format (Protobuf, MessagePack) or a custom serialization scheme that the default implementation does not support. + +A serializer is typically paired with an `IMessageTypeRegistry`. Some transports embed the CLR type name in a message header and call `Deserialize(data, Type)` directly, so the serializer never needs to discover the type from the payload. Other wire formats encode the type name inside the payload itself — in those cases the serializer calls `IMessageTypeRegistry.TryResolve` to map the wire name back to a CLR type. + +See [Messages](/ServiceConnect-CSharp/learn/core-concepts/messages/) for the conceptual model. + +## Reference + +```csharp +public interface IMessageSerializer +{ + void Serialize(T message, IBufferWriter output) where T : Message; + T Deserialize(ReadOnlyMemory data) where T : Message; + object Deserialize(ReadOnlyMemory data, Type type); + object Deserialize(in ReadOnlySequence data, Type type); +} +``` + +The interface has four members — three abstract and one default-interface method. The `ReadOnlySequence` deserialize is implemented in terms of `Deserialize(ReadOnlyMemory, Type)` by default and only needs to be overridden when zero-copy handling of multi-segment sequences is required. + +--- + +### `Serialize` + +```csharp +void Serialize(T message, IBufferWriter output) where T : Message; +``` + +Serializes `message` directly into `output`. Implementations should write without allocating an intermediate `byte[]`. + +**Parameters** +- `message` — the message to serialize; constrained to `Message` subclasses. +- `output` — the destination buffer writer. Caller owns its lifetime; the implementation calls `output.GetSpan` / `output.Advance` (or equivalent) to write without copying. + +--- + +### `Deserialize` + +```csharp +T Deserialize(ReadOnlyMemory data) where T : Message; +``` + +Deserializes a memory block into an instance of `T`. Used on the request/reply path where the caller has the static type at the call site. + +**Parameters** +- `data` — the serialized payload. + +**Returns.** A fully populated `T` instance. + +--- + +### `Deserialize(ReadOnlyMemory, Type)` + +```csharp +object Deserialize(ReadOnlyMemory data, Type type); +``` + +Deserializes a memory block into the CLR type specified by `type`. The dispatch path resolves the runtime type from the message header (via `IMessageTypeRegistry`) and calls this overload directly. + +**Parameters** +- `data` — the serialized payload. +- `type` — the destination CLR type; must be a `Message` subclass. + +**Returns.** The deserialized object, typed as `object`. + +--- + +### `Deserialize(in ReadOnlySequence, Type)` + +```csharp +object Deserialize(in ReadOnlySequence data, Type type); +``` + +Default-interface method. Deserializes a (possibly multi-segment) `ReadOnlySequence` into the CLR type specified by `type`. Used by the streaming path where buffered packets arrive as segmented sequences rather than copied into a contiguous buffer. + +**Default implementation.** Flattens the sequence into a `byte[]` via `BuffersExtensions.ToArray` before delegating to `Deserialize(ReadOnlyMemory, Type)`. Implementations that can read across segments without flattening — e.g. via `System.Text.Json.Utf8JsonReader` on a sequence — should override to avoid the allocation on multi-segment input. + +**Parameters** +- `data` — the serialized payload, possibly spanning multiple segments. +- `type` — the destination CLR type. + +**Returns.** The deserialized object, typed as `object`. + +## Implementing + +### Thread-safety + +`IMessageSerializer` is resolved as a singleton. Every message processed by the bus — inbound and outbound — flows through the same instance. Implementations must be thread-safe. Stateless implementations (those that hold only read-only configuration) are safe by default. If the implementation holds mutable state (for example, a write buffer pool), protect shared state with a `ConcurrentQueue` or similar mechanism. + +### Type-id propagation + +The bus pipeline discovers the CLR type to deserialize into by one of two paths: + +- **Header-based:** the transport reads a type name from a message header and calls `Deserialize(data, Type)` directly. The serializer does not need to embed or read a type discriminator in the payload. This is the simpler path and works well with any wire format. +- **Payload-embedded:** the serializer embeds a type discriminator (e.g. the wire name) in the payload on serialize and reads it back on deserialize. On the deserialize side, call `IMessageTypeRegistry.TryResolve(typeName, out var type)` to obtain the CLR type; if `TryResolve` returns `false`, throw so the pipeline routes the message to the error queue. + +Both paths are valid. Choose the header-based approach unless the protocol mandates an embedded type id. + +### Versioning + +Serialization format changes affect already-persisted messages — timeout state, aggregator snapshots, and messages sitting in dead-letter queues may have been written with an older format. When evolving a wire format: + +- Adding new optional fields is safe; absent fields should deserialize to their default value. +- Removing fields or changing their wire ordering breaks replay of older messages. +- Consider a version discriminator in the payload if you need to support multiple format versions simultaneously. + +### Error-handling contract + +Throw a descriptive exception on malformed or unrecognizable payloads. Do not return a default instance or swallow the error — throwing causes the bus pipeline to route the message to the error queue, where it can be inspected and retried. Swallowing an error would silently discard the message. + +### Skeletal Protobuf implementation + +```csharp +using System.Buffers; +using ServiceConnect.Interfaces; + +public sealed class ProtobufMessageSerializer : IMessageSerializer +{ + public void Serialize(T message, IBufferWriter output) where T : Message + { + throw new NotImplementedException(); + } + + public T Deserialize(ReadOnlyMemory data) where T : Message + { + throw new NotImplementedException(); + } + + public object Deserialize(ReadOnlyMemory data, Type type) + { + throw new NotImplementedException(); + } + + // Deserialize(in ReadOnlySequence, Type) has a default implementation + // on the interface that flattens to a byte[] before delegating. Override only + // if you can read multi-segment sequences without copying (e.g. Utf8JsonReader). +} +``` + +## Usage + +### Protobuf-backed serializer + +The following example implements the **header-based strategy**: the type name travels in a transport message header, so the pipeline resolves the CLR type before calling `Deserialize` and passes it as an explicit argument. The serializer payload contains only the Protobuf bytes — no type discriminator is embedded. The serializer therefore needs no registry and has no constructor dependencies. + +```csharp +using System.Buffers; +using Google.Protobuf; +using ServiceConnect.Interfaces; + +/// +/// Wire format: pure Protobuf bytes. The CLR type is carried in a transport +/// header and resolved by the pipeline before Deserialize is called. +/// +public sealed class ProtobufMessageSerializer : IMessageSerializer +{ + public void Serialize(T message, IBufferWriter output) where T : Message + { + var proto = (IMessage)message; + var payload = proto.ToByteArray(); + var span = output.GetSpan(payload.Length); + payload.AsSpan().CopyTo(span); + output.Advance(payload.Length); + } + + public T Deserialize(ReadOnlyMemory data) where T : Message + => (T)Deserialize(data, typeof(T)); + + public object Deserialize(ReadOnlyMemory data, Type type) + { + var parser = (MessageParser)type.GetProperty("Parser")!.GetValue(null)!; + // Protobuf parsers expect a span/array; the framework guarantees the memory + // is contiguous and stable for the duration of this call. + return parser.ParseFrom(data.Span); + } +} +``` + +Register the serializer during bus startup (register a `ProtobufMessageTypeRegistry` alongside it if your transport needs one — see [`IMessageTypeRegistry`](../imessagetyperegistry/) for the full registry example): + +```csharp +services.AddServiceConnect(builder => +{ + builder.AddRegistration(svc => + { + svc.AddSingleton(); + svc.AddSingleton(); + }); +}); +``` + +Or wrap the registration in an extension method for cleaner startup code: + +```csharp +public static class ProtobufSerializationExtensions +{ + public static ServiceConnectBuilder UseProtobufSerialization(this ServiceConnectBuilder builder) + { + builder.AddRegistration(svc => + { + svc.AddSingleton(); + svc.AddSingleton(); + }); + return builder; + } +} + +// Startup: +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(transport => transport.Host = "rabbit.internal.example"); + builder.UseProtobufSerialization(); +}); +``` + +When an `OrderPlaced` message is published by `OrderService`, the pipeline calls `Serialize`, producing a Protobuf byte array. On the receiving side, the transport reads the CLR type name from the message header, resolves it to `typeof(OrderPlaced)` (via the registry or a direct lookup), and calls `Deserialize(data, typeof(OrderPlaced))` to reconstruct the message before dispatching to the handler. + +## See also + +- [Messages](/ServiceConnect-CSharp/learn/core-concepts/messages/) — concept +- [`IMessageTypeRegistry`](../imessagetyperegistry/) — companion registry interface +- [`Envelope`](../../../messages/envelope/) — the message wrapper the transport works with diff --git a/website/src/content/docs/reference/extension-points/serialization/imessagetyperegistry.mdx b/website/src/content/docs/reference/extension-points/serialization/imessagetyperegistry.mdx new file mode 100644 index 000000000..0af113cae --- /dev/null +++ b/website/src/content/docs/reference/extension-points/serialization/imessagetyperegistry.mdx @@ -0,0 +1,225 @@ +--- +title: IMessageTypeRegistry +description: A safe registry that maps string type names to CLR types — replace to use compact wire names or enforce a strict allowlist of deserializable types. +--- + +import { Aside } from '@astrojs/starlight/components'; + +## Overview + +`IMessageTypeRegistry` resolves a message type **name** (a string) to a CLR `Type`. The framework calls `TryResolve` on every inbound message to determine which type to deserialize the payload into. + +Replace the default implementation when the type-name scheme differs from what the default provides — for example, when you want to use a stable wire name such as `orders.v1.OrderPlaced` instead of a full assembly-qualified CLR name, or when you need a curated allowlist of types the bus is permitted to deserialize. + +**Security property.** Unlike `Type.GetType`, this registry refuses to activate any type that was not explicitly registered at startup. An attacker who controls the wire name in a message header cannot trick the bus into instantiating an arbitrary CLR type; `TryResolve` will return `false` and the message will be routed to the error queue. This makes the registry the correct place to enforce trust boundaries around deserialization. + +See [Messages](/ServiceConnect-CSharp/learn/core-concepts/messages/) for the conceptual model. + +## Reference + +### `TryResolve` + +```csharp +bool TryResolve(string typeName, [MaybeNullWhen(false)] out Type type); +``` + +Attempts to locate a previously registered CLR `Type` by its wire name. + +**Parameters** +- `typeName` — the wire name as it appears in the message header or payload. The format is implementation-defined; the framework passes whatever string was embedded in the incoming message without transformation. +- `type` — receives the resolved `Type` if the method returns `true`; `null` when the method returns `false`. The `[MaybeNullWhen(false)]` attribute lets implementations write `type = null` on the not-found branch without a nullable-context warning. + +**Returns.** `true` if a type was found; `false` if `typeName` is unknown. Do not throw for the not-found case — the caller (the bus dispatch pipeline) decides how to react, typically by routing the message to the error queue. + +--- + +### `Register` + +```csharp +void Register(Type type); +``` + +Adds `type` to the registry so it can be resolved by name on inbound messages. + +**Parameters** +- `type` — the CLR type to register; must be a `Message` subclass. The implementation derives the wire name from `type` according to its naming scheme (full name, simple name, a custom attribute value, and so on). + +**Remarks.** Implementations should fail loudly at registration time when two CLR types share the same wire name rather than silently overwriting the prior entry. A silent overwrite means the first type becomes permanently unreachable and produces hard-to-diagnose deserialization failures at runtime. + +--- + +### `AllRegisteredTypeNames` + +```csharp +IReadOnlyCollection AllRegisteredTypeNames(); +``` + +Returns a point-in-time snapshot of every registered type-name key. The default implementation (the framework's own `MessageTypeRegistry`) emits both the `Type.FullName` and `Type.AssemblyQualifiedName` keys for each registered type — third-party implementations choosing a different keying scheme should return whatever set of strings `TryResolve` accepts. + +**Returns.** The currently-registered type-name keys, detached from the registry. Subsequent `Register` calls do not retroactively appear in a previously returned snapshot. + +**Used by.** Persistors that want to filter stored records to those whose CLR type is currently resolvable — for example, the Mongo aggregator persistor uses this set to build a `$in` filter on its `CountResolvedAsync` query so it does not materialise and discard documents that would deserialise to a now-missing type. A registry that returns an unstable, growing snapshot will produce surprising flush-gate behaviour: implementations should cache the snapshot until the next `Register` call. + +## Implementing + +### Registration timing + +Register all known message types before the bus starts consuming. The typical approach is to scan one or more assemblies at startup and call `Register` for each `Message` subtype found. Lazy registration (registering on first encounter) is also valid but must be thread-safe, because `TryResolve` is on the hot path of every inbound message and may be called concurrently. + +### Ambiguity at registration + +If two CLR types map to the same wire name, throw at `Register` time: + +```csharp +if (!_map.TryAdd(wireName, type)) + throw new InvalidOperationException( + $"Wire name '{wireName}' is already registered as '{_map[wireName].FullName}'. " + + $"Cannot also register '{type.FullName}'. Resolve the naming conflict."); +``` + +This fails fast during startup rather than producing silent data corruption or routing failures in production. + +### Not-found contract + +`TryResolve` must return `false` when a name is unknown. Do not throw — the bus pipeline handles `false` by routing the message to the error queue, where it can be inspected. Throwing would propagate an unhandled exception through the consumer, which may cause the channel to close. + +### Thread-safety + +The registry is a singleton. `TryResolve` is called on the inbound message hot path and may be called from multiple threads concurrently. Use a `ConcurrentDictionary` for the underlying map, or populate a regular `Dictionary` during startup and switch to a read-only frozen view before the bus starts consuming so that no locks are needed at runtime. + +### Skeletal implementation sketch + +```csharp +using System.Collections.Concurrent; +using System.Diagnostics.CodeAnalysis; +using ServiceConnect.Interfaces; + +public sealed class WireNameMessageTypeRegistry : IMessageTypeRegistry +{ + private readonly ConcurrentDictionary _map = new(); + + public bool TryResolve(string typeName, [MaybeNullWhen(false)] out Type type) + => _map.TryGetValue(typeName, out type); + + public void Register(Type type) + { + throw new NotImplementedException(); + // Derive wireName from type, then: + // if (!_map.TryAdd(wireName, type)) + // throw new InvalidOperationException(...); + } + + public IReadOnlyCollection AllRegisteredTypeNames() => _map.Keys.ToArray(); +} +``` + +## Usage + +### Wire-name registry with attribute-driven discovery + +The following example implements a registry that resolves compact wire names (e.g. `"OrderPlaced"`) to CLR types. Each message type declares its wire name via a `[WireName]` attribute. At startup the host walks the message assembly and calls `Register` for every attributed `Message` subclass. + +```csharp +using System.Collections.Concurrent; +using System.Diagnostics.CodeAnalysis; +using System.Reflection; +using ServiceConnect.Interfaces; + +/// +/// Marks a Message subclass with the stable wire name used in message headers. +/// +[AttributeUsage(AttributeTargets.Class, Inherited = false)] +public sealed class WireNameAttribute : Attribute +{ + public string Name { get; } + public WireNameAttribute(string name) => Name = name; +} + +/// +/// Resolves wire names declared via to CLR types. +/// +public sealed class WireNameMessageTypeRegistry : IMessageTypeRegistry +{ + private readonly ConcurrentDictionary _map = new(StringComparer.Ordinal); + + public bool TryResolve(string typeName, [MaybeNullWhen(false)] out Type type) + => _map.TryGetValue(typeName, out type); + + public void Register(Type type) + { + var attr = type.GetCustomAttribute(); + if (attr is null) + throw new InvalidOperationException( + $"Cannot register '{type.FullName}': missing [WireName] attribute."); + + if (!_map.TryAdd(attr.Name, type)) + throw new InvalidOperationException( + $"Wire name '{attr.Name}' is already registered as '{_map[attr.Name].FullName}'. " + + $"Cannot also register '{type.FullName}'. Resolve the naming conflict."); + } + + public IReadOnlyCollection AllRegisteredTypeNames() => _map.Keys.ToArray(); +} +``` + +Declare wire names on your message types: + +```csharp +[WireName("OrderPlaced")] +public sealed class OrderPlaced : Message +{ + public Guid OrderId { get; init; } + public string CustomerId { get; init; } = string.Empty; + public decimal TotalAmount { get; init; } +} + +[WireName("PaymentAuthorised")] +public sealed class PaymentAuthorised : Message +{ + public Guid OrderId { get; init; } + public string PaymentReference { get; init; } = string.Empty; +} +``` + +Scan the assembly at startup and register every attributed `Message` subclass: + +```csharp +public static void RegisterMessageTypes(IMessageTypeRegistry registry, Assembly assembly) +{ + foreach (var type in assembly.GetTypes()) + { + if (!type.IsAbstract + && type.IsSubclassOf(typeof(Message)) + && type.GetCustomAttribute() is not null) + { + registry.Register(type); + } + } +} +``` + +Register the implementation during bus startup: + +```csharp +services.AddServiceConnect(builder => +{ + builder.AddRegistration(svc => + { + svc.AddSingleton(sp => + { + var registry = new WireNameMessageTypeRegistry(); + RegisterMessageTypes(registry, typeof(OrderPlaced).Assembly); + return registry; + }); + }); +}); +``` + +When the bus receives a message with header `type: OrderPlaced`, it calls `TryResolve("OrderPlaced", out var type)`. The registry returns `true` and sets `type` to `typeof(OrderPlaced)`. The serializer then deserializes the payload into an `OrderPlaced` instance, which is dispatched to any registered `IMessageHandler` — such as the `ShippingSaga` or `PaymentProcessor` — in the usual way. + +If an inbound message carries a wire name that was never registered — for example, a stale type removed from the codebase — `TryResolve` returns `false`. The pipeline routes the message to the error queue, where it can be inspected without disrupting other consumers. + +## See also + +- [Messages](/ServiceConnect-CSharp/learn/core-concepts/messages/) — concept +- [`IMessageSerializer`](../imessageserializer/) — companion serializer interface diff --git a/website/src/content/docs/reference/extension-points/transport/iconsumer.mdx b/website/src/content/docs/reference/extension-points/transport/iconsumer.mdx new file mode 100644 index 000000000..4c10fe46d --- /dev/null +++ b/website/src/content/docs/reference/extension-points/transport/iconsumer.mdx @@ -0,0 +1,357 @@ +--- +title: IConsumer +description: The transport-level consumer abstraction — pull raw message bytes from a broker and dispatch them via ConsumerEventHandler to the ServiceConnect pipeline. +--- + +import { Aside } from '@astrojs/starlight/components'; + +## Overview + +`IConsumer` is the contract that plugs a message broker into the ServiceConnect pipeline on the receive side. An implementation opens a connection to a broker, subscribes to the queues or topics that correspond to the supplied `messageTypes`, and dispatches each raw delivery as a `ReadOnlyMemory` to the `ConsumerEventHandler` delegate. The pipeline deserialises, routes, and executes the message from there. + +One `IConsumer` implementation is active per transport. The framework resolves it as a singleton and calls `StartConsumingAsync` once per consumer host at startup. At shutdown it calls `DisposeAsync` to close the broker connection cleanly. + +The handler's `Task` return value drives the ack/nack decision: returning `Success = true` tells the transport to acknowledge the message; `Success = false` or a non-null `Exception` tells it to nack, requeue, or dead-letter the delivery according to the transport's policy. This design preserves at-least-once delivery — the framework never silently discards a message. + +See [The Bus](/ServiceConnect-CSharp/learn/core-concepts/the-bus/) for how the consumer fits into the full message pipeline. + +## Reference + +### `IsConnected` + +```csharp +bool IsConnected { get; } +``` + +Returns `true` when the consumer is connected to the broker and able to receive deliveries. The framework uses this property for health checks and to decide whether to attempt a reconnect. Implementations should return `false` during startup, after an ungraceful disconnection, and after `DisposeAsync` has been called. + +--- + +### `IsCancelledByBroker` + +```csharp +bool IsCancelledByBroker { get; } +``` + +Returns `true` when the broker has explicitly cancelled this consumer — for example, the queue was deleted, the queue policy expired, or a mirror was promoted. Distinct from a transient disconnection: a broker-cancellation is terminal until the consumer is restarted. `IBus.IsConsuming` returns `false` whenever this is `true` so health checks surface the unhealthy state. + +--- + +### `IsStopped` + +```csharp +bool IsStopped => false; +``` + +Default-interface method (returns `false` if not overridden). Distinguishes "intentional shutdown" from "transient disconnect": once `StopConsumingAsync` or `DisposeAsync` has run, `IsStopped` flips `true` permanently — there is no reconnect to wait for. `ConsumerConnectionHealthCheck` consults this to bypass the recovery-grace window on intentional shutdown and report Unhealthy immediately. + +--- + +### `StartConsumingAsync` + +```csharp +Task StartConsumingAsync( + string queueName, + IReadOnlyList messageTypes, + ConsumerEventHandler eventHandler, + CancellationToken cancellationToken = default); +``` + +Subscribes to `queueName` and begins delivering messages to `eventHandler`. The returned `Task` completes when the consumer loop has terminated — either because `cancellationToken` was cancelled or because the implementation encountered a fatal broker error. + +**Parameters** + +- `queueName` — the name of the queue, topic, or subscription to consume from. +- `messageTypes` — the allow-list of wire type names the consumer should receive. Transports that support server-side filtering (Azure Service Bus subscription filters, Kafka topic-per-type routing) should push this filter to the broker. Transports that do not support server-side filtering must filter client-side: discard deliveries whose type header is not in this list. +- `eventHandler` — the `ConsumerEventHandler` delegate that the transport calls for each delivery. See [`ConsumerEventHandler`](#consumereventhandler) below. +- `cancellationToken` — signals that the consumer should stop receiving new messages and exit the consume loop cleanly. + +--- + +### `StopConsumingAsync` + +```csharp +Task StopConsumingAsync(CancellationToken cancellationToken = default) => Task.CompletedTask; +``` + +Default-interface method (no-op by default). Issues a *graceful* stop: instructs the broker to stop delivering messages to this consumer and drains any in-flight handler invocations. Does NOT tear down the underlying channel/connection — that happens on `IAsyncDisposable.DisposeAsync`. Idempotent. + +The default no-op exists so existing third-party `IConsumer` implementations stay source-compatible. Custom transports that want graceful shutdown semantics should override this; without an override, `Bus.StopConsumingAsync` only flips the consuming flag and the broker keeps delivering until DI disposal. + +--- + +### `ConsumerEventHandler` + +```csharp +public delegate Task ConsumerEventHandler( + ReadOnlyMemory message, + string type, + IDictionary headers, + CancellationToken cancellationToken); +``` + +The callback the transport invokes for every delivered message. + +**Parameters** + +- `message` — the raw serialised payload as received from the broker. +- `type` — the wire type name of the message (for example `"OrderService.Messages.OrderPlaced"`). The pipeline uses this to resolve the CLR type and dispatch to the correct handler. +- `headers` — a dictionary of transport headers. Values are typed as `object` because some broker clients expose typed header values (integers, timestamps) rather than plain strings. Note the asymmetry with `IProducer`, where outgoing headers are `IDictionary` — the transport layer stringifies header values on the wire, but deserialisation restores the broker-native type. +- `cancellationToken` — propagated from the consumer's cancellation token; the handler should respect it for any I/O it performs. + +**Returns.** A `ConsumeEventResult` describing whether the message was processed successfully. See [`ConsumeEventResult`](#consumeeventresult) below. + +--- + +### `ConsumeEventResult` + +```csharp +public sealed class ConsumeEventResult +{ + public bool Success { get; init; } + public bool NotHandled { get; init; } + public Exception? Exception { get; init; } + public bool TerminalFailure { get; init; } +} +``` + +Returned by the `ConsumerEventHandler` to communicate the processing outcome back to the transport. The properties are `init`-only — construct via object initialiser at the point of return; the type is framework-produced and consumer-observed only. + +- `Success = true` — the message was processed; the transport should acknowledge it to the broker. +- `Success = false` — processing failed; the transport should nack, requeue, or move the message to the dead-letter destination according to its policy. +- `NotHandled = true` — the dispatcher ran to completion but no processor claimed the message. Distinct from a failure; the transport should honour [`IBusConfiguration.DeadLetterUnhandledMessages`](../../../bus/ibusconfiguration/#deadletterunhandledmessages) when deciding whether to ack or route the delivery to the error exchange. +- `Exception` — if non-null, the exception that caused the failure. The transport may log or attach this to the nack decision. +- `TerminalFailure = true` — the failure is permanent: the message is structurally malformed (for example, an unparseable wire payload) and retrying will produce the same outcome. Transport implementers **must** route `TerminalFailure = true` directly to the error exchange, bypassing the retry queue entirely. Burning the retry budget on a poison payload that no amount of redelivery will fix is wasteful and delays detection. The dispatcher sets this flag on payload-level deserialisation failures (`JsonException`, `NotSupportedException` from a converter mismatch); handler-thrown exceptions are non-terminal and follow the normal retry path. + +--- + +## Implementing + +### Delivery guarantees + +ServiceConnect assumes at-least-once delivery. If `eventHandler` returns `Success = false` or throws, the transport must not acknowledge the message to the broker. If the consumer process crashes while a handler is executing, the broker should redeliver the message on reconnect. Implementations that acknowledge before invoking the handler break this contract and risk silent message loss. + +### Ack/nack contract + +The sequence must be: + +1. Receive delivery from the broker. +2. Invoke `eventHandler` and `await` the result. +3. If `result.Success` is `true`, acknowledge to the broker. +4. Otherwise, nack, requeue, or dead-letter according to the transport's error policy. + +Only acknowledge after the returned task has completed. Do not fire-and-forget the handler. + +### Prefetch and flow control + +Transports that support prefetch limits (RabbitMQ `basicQos`, Kafka `max.poll.records`) should configure a sensible default at the point `StartConsumingAsync` is called, before the consumer loop begins. Unbounded prefetch can exhaust memory when the pipeline is slower than the broker. A prefetch of 10–50 messages is a reasonable starting point for most workloads; expose it via configuration rather than hard-coding it. + +### Cancellation + +Observe `cancellationToken` throughout the consume loop. On cancellation: + +1. Stop requesting new deliveries from the broker. +2. Allow any in-flight handler invocation to complete (or timeout gracefully). +3. Close open broker handles inside `DisposeAsync`. + +Do not swallow `OperationCanceledException` — let it propagate so the caller knows the loop exited due to cancellation rather than a broker error. + +### DisposeAsync timeout behaviour + +If `DisposeAsync` times out waiting for an in-flight `StartConsumingAsync` to complete its setup, the consumer's `IsStopped` latch is set on entry (which surfaces as `IBus.IsConsuming=false` to health checks), but the started flag is intentionally left set. A subsequent `StartConsumingAsync` on the same instance throws `InvalidOperationException("Consumer is already consuming. Call DisposeAsync before starting again.")` rather than deadlocking against the lifecycle lock the wedged start still holds. Operators should resolve the wedge (typically a process restart) before consumption resumes. + +### Message-type filtering + +The `messageTypes` parameter is the allow-list of wire type names for this consumer. How to apply it depends on the broker: + +- **Topic-per-type** (Kafka): subscribe only to the topics named after each entry in `messageTypes`. +- **Server-side filter** (Azure Service Bus): create a subscription rule matching the type header against `messageTypes`. +- **Fan-out with client filtering** (broad fan-out topics): subscribe once and discard deliveries whose type header is not in `messageTypes` before invoking the handler. + +### Skeletal consumer loop + +```csharp +using ServiceConnect.Interfaces; + +public sealed class BrokerConsumer : IConsumer +{ + private bool _connected; + + public bool IsConnected => _connected; + + // Broker-cancellation is a hard signal (queue deleted, policy expired, mirror promoted). + // Stub `false` here; real implementations should flip true on the broker's cancel callback. + public bool IsCancelledByBroker => false; + + public async Task StartConsumingAsync( + string queueName, + IReadOnlyList messageTypes, + ConsumerEventHandler eventHandler, + CancellationToken cancellationToken = default) + { + // 1. Open connection / subscribe to queueName. + _connected = true; + + try + { + while (!cancellationToken.IsCancellationRequested) + { + // 2. Receive next delivery from the broker. + var delivery = await ReceiveNextAsync(cancellationToken); + if (delivery is null) continue; + + // 3. Extract type name and headers from the delivery. + var type = ExtractTypeName(delivery); + var headers = ExtractHeaders(delivery); + + // 4. Client-side filter (only needed for fan-out transports). + if (!messageTypes.Contains(type)) continue; + + // 5. Invoke the handler. + var result = await eventHandler(delivery.Body, type, headers, cancellationToken); + + // 6. Ack or nack based on the result. + if (result.Success) + await AcknowledgeAsync(delivery, cancellationToken); + else + await NackAsync(delivery, result.Exception, cancellationToken); + } + } + finally + { + _connected = false; + } + } + + public ValueTask DisposeAsync() + { + // Close broker connection / channel. + _connected = false; + return ValueTask.CompletedTask; + } + + // Broker-specific helpers — implement using your broker client. + private Task ReceiveNextAsync(CancellationToken ct) => throw new NotImplementedException(); + private string ExtractTypeName(Delivery d) => throw new NotImplementedException(); + private IDictionary ExtractHeaders(Delivery d) => throw new NotImplementedException(); + private Task AcknowledgeAsync(Delivery d, CancellationToken ct) => throw new NotImplementedException(); + private Task NackAsync(Delivery d, Exception? ex, CancellationToken ct) => throw new NotImplementedException(); + + private sealed record Delivery(ReadOnlyMemory Body); +} +``` + +## Usage + +### Kafka consumer using Confluent.Kafka + +The following skeleton shows a `KafkaConsumer` that subscribes to topics named after each message type, delivers raw payloads to the pipeline, and commits offsets only after the handler returns `Success = true`. + +```csharp +using Confluent.Kafka; +using ServiceConnect.Interfaces; + +public sealed class KafkaConsumer : IConsumer +{ + private readonly ConsumerConfig _config; + private IConsumer? _inner; + + public KafkaConsumer(ConsumerConfig config) + { + _config = config; + } + + public bool IsConnected => _inner is not null; + + // Kafka has no broker-side consumer-cancel callback equivalent to AMQP `basic.cancel`. + // Stub false; a real implementation could surface `ErrorCode.UnknownTopicOrPart` here. + public bool IsCancelledByBroker => false; + + public async Task StartConsumingAsync( + string queueName, + IReadOnlyList messageTypes, + ConsumerEventHandler eventHandler, + CancellationToken cancellationToken = default) + { + _inner = new ConsumerBuilder(_config).Build(); + + // Subscribe to one topic per message type (topic-per-type routing). + _inner.Subscribe(messageTypes); + + try + { + while (!cancellationToken.IsCancellationRequested) + { + ConsumeResult result; + try + { + result = _inner.Consume(cancellationToken); + } + catch (OperationCanceledException) + { + break; + } + + // The message key carries the wire type name. + var type = result.Message.Key; + var headers = ExtractHeaders(result.Message.Headers); + var payload = new ReadOnlyMemory(result.Message.Value); + + var outcome = await eventHandler(payload, type, headers, cancellationToken); + + if (outcome.Success) + { + // Commit offset only on successful processing. + _inner.Commit(result); + } + // On failure, do not commit — the message will be redelivered on restart. + } + } + finally + { + _inner.Close(); + } + } + + public ValueTask DisposeAsync() + { + _inner?.Dispose(); + _inner = null; + return ValueTask.CompletedTask; + } + + private static IDictionary ExtractHeaders(Headers headers) + { + var dict = new Dictionary(); + foreach (var header in headers) + dict[header.Key] = header.GetValueBytes(); + return dict; + } +} +``` + +Register the `KafkaConsumer` during bus startup so the framework resolves it in place of the default RabbitMQ consumer: + +```csharp +services.AddServiceConnect(builder => +{ + builder.AddRegistration(svc => + { + svc.AddSingleton(new ConsumerConfig + { + BootstrapServers = "kafka.internal.example:9092", + GroupId = "order-service", + AutoOffsetReset = AutoOffsetReset.Earliest, + EnableAutoCommit = false, + }); + svc.AddSingleton(); + }); +}); +``` + +When `OrderService` starts, the framework calls `StartConsumingAsync` with the queue name and the list of message types registered for that service. The `KafkaConsumer` subscribes to the corresponding topics and begins delivering `OrderPlaced` payloads to the pipeline. + +## See also + +- [The Bus](/ServiceConnect-CSharp/learn/core-concepts/the-bus/) — how the consumer fits into the message pipeline +- [`IProducer`](../iproducer/) — the outbound counterpart diff --git a/website/src/content/docs/reference/extension-points/transport/iproducer.mdx b/website/src/content/docs/reference/extension-points/transport/iproducer.mdx new file mode 100644 index 000000000..6f92ff7b5 --- /dev/null +++ b/website/src/content/docs/reference/extension-points/transport/iproducer.mdx @@ -0,0 +1,467 @@ +--- +title: IProducer +description: The transport-level producer abstraction — publish or send serialised message bytes to a broker using pub/sub fan-out, auto-routed point-to-point, or explicit endpoint delivery. +--- + +import { Aside } from '@astrojs/starlight/components'; + +## Overview + +`IProducer` is the contract that plugs a message broker into the ServiceConnect pipeline on the send side. An implementation accepts serialised message bytes and delivers them to the broker using whichever routing strategy the caller requests. One `IProducer` implementation is active per transport; the framework resolves it as a singleton and holds it for the lifetime of the bus. + +The four send-shaped methods cover distinct routing patterns: + +- `PublishAsync` — pub/sub fan-out. The broker routes the message to every subscriber bound to the message type. Use this when `OrderService` publishes `OrderPlaced` and multiple downstream services each receive a copy. +- `SendAsync(Type, ...)` — auto-routed point-to-point. The **producer** receives a `Type`, looks up `IQueueConfiguration.QueueMappings` itself to resolve the destination queue or queues, and sends to each. The caller does not need to know the destination — the producer owns the mapping lookup. +- `SendAsync(string, Type, ...)` — explicit destination point-to-point. The **caller** has already resolved the endpoint and supplies it directly. The producer sends to that address without consulting any configuration. +- `SendBytesAsync(string, Type, ReadOnlyMemory, ...)` — raw-bytes delivery to an explicit endpoint. Used by control-plane channels (stream writers, reply-to envelopes) when the caller has already framed the payload. The `Type` parameter carries the logical message type for header stamping only. + +`MaximumMessageSize` lets the pipeline pre-check payload size before attempting a send, avoiding a roundtrip to the broker for a message that will be rejected. + +Note the header asymmetry: outgoing headers are `IReadOnlyDictionary?` (string values only) because transport headers are stringified on the wire. On the receive side, `ConsumerEventHandler` receives `IDictionary` because some broker clients restore typed values (integers, timestamps) during deserialisation. See [`IConsumer`](../iconsumer/) for the receiving contract. + +See [The Bus](/ServiceConnect-CSharp/learn/core-concepts/the-bus/) for how the producer fits into the full message pipeline. + + + +## Reference + +### `PublishAsync` + +```csharp +Task PublishAsync( + Type type, + ReadOnlyMemory body, + IReadOnlyDictionary? headers = null, + CancellationToken cancellationToken = default); +``` + +Publishes `body` to all subscribers registered for `type`. The broker routes the delivery using whatever fan-out mechanism the transport supports (exchange/binding for RabbitMQ, topic for Kafka, topic with multiple subscriptions for Azure Service Bus). + +**Parameters** + +- `type` — the CLR type of the message; used to derive the routing key, topic name, or exchange binding. +- `body` — the serialised payload bytes. +- `headers` — optional string-valued transport headers to attach to the delivery (for example, `"CorrelationId"`, `"MessageId"`). +- `cancellationToken` — cancels the in-progress send. + +**Returns.** A `Task` that completes once the broker has confirmed durability (publisher confirm, `acks=all`, or equivalent). Do not return early on an in-flight send. + +--- + +### `PublishAsync` (routing-key overload) + +```csharp +Task PublishAsync( + Type type, + ReadOnlyMemory body, + string? routingKey, + IReadOnlyDictionary? headers = null, + CancellationToken cancellationToken = default); +``` + +Publishes `body` to subscribers of `type`, forwarding `routingKey` to the transport for topic-exchange dispatch. This overload is a default-interface method: implementations that predate it fall back to the no-routing-key `PublishAsync` overload, silently dropping the key. First-party transports (RabbitMQ) override this to honour the key on the wire. + +**Parameters** + +- `type` — the CLR type of the message. +- `body` — the serialised payload bytes. +- `routingKey` — the transport routing key. Pass an empty string for fanout dispatch. Pass `null` to use the transport's default routing behaviour (identical to calling the no-routing-key overload). +- `headers` — optional string-valued transport headers. +- `cancellationToken` — cancels the in-progress send. + +**Default implementation.** Ignores `routingKey` and delegates to `PublishAsync(type, body, headers, cancellationToken)`. Third-party producers that have not overridden this method silently drop the key — this is the same behaviour as before the overload was added. + +**Relationship to `SupportsRoutingKey`.** `SupportsRoutingKey` returns `false` for any producer that has not overridden this overload. The bus emits a once-per-bus `LogWarning` when a caller supplies `PublishOptions.RoutingKey` and `SupportsRoutingKey` is `false`, so that topic-exchange dispatch failures are visible without a roundtrip to the broker. Custom producers that honour the routing key must override both this method and `SupportsRoutingKey`. + +--- + +### `SendAsync` (auto-routed) + +```csharp +Task SendAsync( + Type type, + ReadOnlyMemory body, + IReadOnlyDictionary? headers = null, + CancellationToken cancellationToken = default); +``` + +Sends `body` to the destination queue (or queues) mapped for `type`. The transport implementation receives the `Type` and looks up `IQueueConfiguration.QueueMappings` itself — keyed on the type's fully qualified name — to resolve the destination. If no mapping exists, the producer should throw rather than silently drop the message. This is the overload to use when queue-mapping configuration fully controls routing and the caller does not need to name the destination. + +**Parameters** + +- `type` — the CLR type of the message. +- `body` — the serialised payload bytes. +- `headers` — optional string-valued transport headers. +- `cancellationToken` — cancels the in-progress send. + +**Failure semantics (multi-mapping fan-out).** When the queue mapping for `type` resolves to **multiple** endpoints, each endpoint is published to in turn: + +- **Per-endpoint failure does not abort the loop.** A non-cancellation failure on one endpoint is collected, and the loop continues to the remaining endpoints. After the loop completes, all collected failures surface as a single `AggregateException` whose inner exceptions are the individual per-endpoint failures. +- **Cancellation aborts the remaining endpoints.** If `cancellationToken` fires (or an awaited operation throws `OperationCanceledException`) on a given endpoint, the loop does not attempt subsequent endpoints. If any prior endpoint already failed, the cancellation is aggregated with those failures into a single `AggregateException` (so prior failures are not lost). If no prior endpoint failed, the `OperationCanceledException` propagates plain — callers' standard cancellation handlers see the canonical type. +- **Single-endpoint mappings retain plain-exception semantics.** When the type maps to exactly one endpoint, this overload behaves identically to the explicit-endpoint overload below: failures and cancellation propagate plain, never wrapped. + +--- + +### `SendAsync` (explicit endpoint) + +```csharp +Task SendAsync( + string endPoint, + Type type, + ReadOnlyMemory body, + IReadOnlyDictionary? headers = null, + CancellationToken cancellationToken = default); +``` + +Sends `body` to `endPoint` directly. The producer does not consult queue mappings — it trusts the caller and sends to the given address. + +**Parameters** + +- `endPoint` — the queue name, topic, or address to send to. +- `type` — the CLR type of the message; carried in headers for the receiver to resolve. +- `body` — the serialised payload bytes. +- `headers` — optional string-valued transport headers. +- `cancellationToken` — cancels the in-progress send. + +--- + +### `SendAsync` (routing-slip hops overload) + +```csharp +Task SendAsync( + string endPoint, + Type type, + ReadOnlyMemory body, + int? routingSlipHopsCompleted, + IReadOnlyDictionary? headers = null, + CancellationToken cancellationToken = default); +``` + +Sends `body` to `endPoint`, carrying the framework's routing-slip hop counter so it can be stamped authoritatively after middleware runs. + +**Parameters** + +- `endPoint` — the destination queue name. +- `type` — the CLR type of the message; carried in headers for the receiver to resolve. +- `body` — the serialised payload bytes. +- `routingSlipHopsCompleted` — the hop count set by `Bus.RouteAsync`. When non-null, the value is stamped onto the outgoing headers as `HeaderKeys.RoutingSlipHopsCompleted` after the send middleware chain, so middleware cannot override the framework value. When null, no hop-count header is written. +- `headers` — optional string-valued transport headers. +- `cancellationToken` — cancels the in-progress send. + +**Default implementation.** When `routingSlipHopsCompleted` is non-null, the DIM injects the hop count into a copy of `headers` as `HeaderKeys.RoutingSlipHopsCompleted` (using `InvariantCulture` formatting) and delegates to `SendAsync(endPoint, type, body, (IReadOnlyDictionary)injected, cancellationToken)`. When null, it delegates directly. First-party transports override to honour the separate parameter without the header-copy step. + +**Remarks.** This overload exists so the hop counter is stamped authoritatively — after all middleware has run — regardless of whether the producer has been upgraded to handle the parameter natively. Third-party producers that have not overridden this method still receive the correct wire stamp via the DIM's header-copy fallback. + +--- + +### `SendBytesAsync` + +```csharp +Task SendBytesAsync( + string endPoint, + Type type, + ReadOnlyMemory packet, + IReadOnlyDictionary? headers = null, + CancellationToken cancellationToken = default); +``` + +Delivers a pre-framed byte packet to `endPoint` without any type-routing logic. Used by control-plane channels (for example, stream writers and reply-to envelopes) where the caller has already composed the full payload. + +**Parameters** + +- `endPoint` — the queue name or address to deliver to. +- `type` — the logical message type the packet represents (for example, the element type of a stream). The implementation uses this to stamp the reserved type headers (`TypeName`, `FullTypeName`) authoritatively — callers cannot override them via `headers`. +- `packet` — the raw bytes to send; the caller is responsible for framing. +- `headers` — optional string-valued transport headers. The producer stamps `DestinationAddress`, `MessageType`, `SourceAddress`, `TimeSent`, `SourceMachine`, `TypeName`, `FullTypeName`, `ConsumerType`, and `Language` authoritatively — caller values for these are overwritten. `MessageId` is preserved when the caller supplies one; the producer mints a new value only if absent. `MessageType` is stamped `"ByteStream"` for this method (see the page-level note above for the full operation-flag semantics). +- `cancellationToken` — cancels the in-progress send. + +--- + +### `MaximumMessageSize` + +```csharp +long MaximumMessageSize { get; } +``` + +The maximum payload size in bytes that this transport accepts per message. The pipeline reads this value before serialising large payloads and can reject or split the message before incurring a network roundtrip to the broker. + +Return `long.MaxValue` if the transport imposes no practical limit. Return the broker's documented maximum (for example, 1 048 576 for the RabbitMQ default frame size, or 262 144 for Azure Service Bus Standard tier) so that callers can enforce it. + +--- + +### `IsHealthy` + +```csharp +bool IsHealthy { get; } +``` + +Returns `true` when the producer is currently connected and ready to publish or send. Returns `false` before the first publish/send call (the producer connects lazily) and after a connection drop until the next reconnect. Mirrors `IConsumer.IsConnected`. + +--- + +### `HasAttemptedConnection` + +```csharp +bool HasAttemptedConnection { get; } +``` + +Returns `false` for a freshly-constructed producer that has not yet been asked to publish or send. Once a publish/send call begins (whether or not it succeeds), this becomes `true` and stays `true` for the producer's lifetime. The producer health check uses this to distinguish *"lazy, not yet tried"* (Healthy) from *"tried and currently disconnected"* (Unhealthy). + +--- + +### `GetHealthSnapshot` + +```csharp +ProducerHealthSnapshot GetHealthSnapshot() + => new(IsHealthy, HasAttemptedConnection); +``` + +Default-interface method that returns a single-snapshot read of `IsHealthy` and `HasAttemptedConnection`. Health-check probes that need both values must use this method rather than reading the two properties separately — the pair admits a race where a publish-success transition lands between the reads and the probe sees stale state. First-party producers (RabbitMQ) override the default with a truly-atomic snapshot read. + +--- + +### `SupportsRoutingKey` + +```csharp +bool SupportsRoutingKey { get; } +``` + +`true` when the producer honors the `routingKey` parameter on `PublishAsync(Type, ReadOnlyMemory, string?, ...)`. The default-interface-method value is `false`; the RabbitMQ producer overrides to `true`. When `false`, the bus emits a once-per-bus `LogWarning` if a caller supplies `PublishOptions.RoutingKey` to a producer that drops the key on the wire. Custom producers that route by key should override this to `true` and handle the key in their `PublishAsync` implementation. + +--- + +### Lifecycle + +`IProducer` extends `IAsyncDisposable`. Lifecycle is owned exclusively by `DisposeAsync` — there is no separate `DisconnectAsync` method. Implementations should flush any pending in-flight sends before closing the underlying broker connection inside `DisposeAsync`. + +--- + +## Implementing + +### Publisher confirms + +The `Task` returned by each send method should complete only after the broker has confirmed durability — RabbitMQ publisher confirms, Kafka `acks=all`, Azure Service Bus settlement. Returning before the broker acknowledgement is received risks silent message loss if the process crashes immediately after the send returns. Avoid fire-and-forget sends inside the implementation. + +### Idempotency + +ServiceConnect does not deduplicate at the transport layer. If the pipeline retries a failed send and the broker already accepted the first copy, the consumer receives duplicates. Transports that expose per-message sequence numbers or deduplication ids (Kafka idempotent producer, Azure Service Bus `MessageId`) should populate those identifiers from the headers dictionary so that downstream consumers can detect and discard duplicates. + +### Retry responsibility + +The producer should retry on transient broker errors — connection blips, throttling responses, temporary unavailability. It should not retry on payload-level errors such as message-too-large or schema validation failures. Use `MaximumMessageSize` to short-circuit before sending rather than discovering the rejection from a broker error response. + +### Routing + +The three point-to-point overloads have different responsibilities: + +- `SendAsync(Type, ...)` — the **implementation** must consult `IQueueConfiguration.QueueMappings` to resolve the destination. Inject `IQueueConfiguration` via the constructor and call `TryGetQueueMapping` (or equivalent) inside this method. If no mapping is registered for the type, throw `InvalidOperationException` rather than silently dropping the message. +- `SendAsync(string endPoint, Type, ...)` — the **caller** has already resolved the endpoint. The implementation should trust the supplied `endPoint` and send directly without performing any queue-mapping lookup. +- `SendBytesAsync(string endPoint, ...)` — same as the explicit-endpoint overload: trust the caller's endpoint value and send without modification. + +`PublishAsync(Type, ...)` is distinct from all three: it is a pub/sub fan-out. Derive the exchange name, topic, or routing key from the type and publish to every subscriber — no queue mapping is involved. + +If your adapter needs to interoperate with the bundled RabbitMQ transport on the same broker (publishers using one adapter, subscribers using the other), call `ServiceConnect.Services.MessageTypeExchangeName.From(type)` to compute the exchange name. The helper is the single source of truth used by the bundled RabbitMQ producer for publish and by the core bus for binding — its output format is fixed for wire compatibility. Adapters that are self-contained (their own publishers and consumers, no cross-adapter interop) are free to use any naming scheme. + +### Skeletal producer + +```csharp +using ServiceConnect.Interfaces; + +public sealed class BrokerProducer : IProducer +{ + public long MaximumMessageSize => 1_048_576; // broker limit + + public Task PublishAsync( + Type type, + ReadOnlyMemory body, + IReadOnlyDictionary? headers = null, + CancellationToken cancellationToken = default) + { + var topic = DeriveTopicFromType(type); + return PublishToBrokerAsync(topic, body, headers, cancellationToken); + } + + public Task SendAsync( + Type type, + ReadOnlyMemory body, + IReadOnlyDictionary? headers = null, + CancellationToken cancellationToken = default) + { + // Resolve the destination queue from IQueueConfiguration.QueueMappings. + // Inject IQueueConfiguration via the constructor and call TryGetQueueMapping here. + throw new NotImplementedException(); + } + + public Task SendAsync( + string endPoint, + Type type, + ReadOnlyMemory body, + IReadOnlyDictionary? headers = null, + CancellationToken cancellationToken = default) + { + return PublishToBrokerAsync(endPoint, body, headers, cancellationToken); + } + + public Task SendBytesAsync( + string endPoint, + Type type, + ReadOnlyMemory packet, + IReadOnlyDictionary? headers = null, + CancellationToken cancellationToken = default) + { + // Stamp type headers from `type` (server-authoritative) then publish. + return PublishToBrokerAsync(endPoint, packet, headers, cancellationToken); + } + + public bool IsHealthy => /* read connection state */ false; + public bool HasAttemptedConnection => /* set when first send begins */ false; + + public ValueTask DisposeAsync() + { + // Flush any pending in-flight sends, then close + dispose the broker client. + return ValueTask.CompletedTask; + } + + // Broker-specific helpers — implement using your broker client. + private string DeriveTopicFromType(Type type) => throw new NotImplementedException(); + private Task PublishToBrokerAsync(string destination, ReadOnlyMemory payload, + IReadOnlyDictionary? headers, CancellationToken ct) => throw new NotImplementedException(); +} +``` + +## Usage + +### Kafka producer with idempotent writes + +The following skeleton shows a `KafkaProducer` that enables idempotent delivery, ensuring exactly-once writes to a given topic partition when the broker is reachable. + +```csharp +using Confluent.Kafka; +using ServiceConnect.Interfaces; + +public sealed class KafkaProducer : IProducer +{ + private readonly IProducer _inner; + + public KafkaProducer(ProducerConfig config) + { + _inner = new ProducerBuilder(config).Build(); + } + + public long MaximumMessageSize => 1_048_576; // Kafka default max.message.bytes + + public async Task PublishAsync( + Type type, + ReadOnlyMemory body, + IReadOnlyDictionary? headers = null, + CancellationToken cancellationToken = default) + { + var topic = type.FullName!.Replace('.', '-').ToLowerInvariant(); + var kafkaMsg = BuildMessage(type.FullName!, body, headers); + await _inner.ProduceAsync(topic, kafkaMsg, cancellationToken); + } + + public async Task SendAsync( + Type type, + ReadOnlyMemory body, + IReadOnlyDictionary? headers = null, + CancellationToken cancellationToken = default) + { + // Resolve the destination from IQueueConfiguration.QueueMappings, then + // fall through to the explicit-endpoint overload — not shown here for brevity. + throw new NotImplementedException(); + } + + public async Task SendAsync( + string endPoint, + Type type, + ReadOnlyMemory body, + IReadOnlyDictionary? headers = null, + CancellationToken cancellationToken = default) + { + var kafkaMsg = BuildMessage(type.FullName!, body, headers); + await _inner.ProduceAsync(endPoint, kafkaMsg, cancellationToken); + } + + public async Task SendBytesAsync( + string endPoint, + Type type, + ReadOnlyMemory packet, + IReadOnlyDictionary? headers = null, + CancellationToken cancellationToken = default) + { + var kafkaMsg = BuildMessage(key: string.Empty, packet, headers); + await _inner.ProduceAsync(endPoint, kafkaMsg, cancellationToken); + } + + // IProducer lifecycle is owned exclusively by DisposeAsync. Health probes (IsHealthy + + // HasAttemptedConnection) are exposed via dedicated properties + GetHealthSnapshot. + public bool IsHealthy => _inner is not null; + public bool HasAttemptedConnection { get; private set; } + + public ValueTask DisposeAsync() + { + // Flush any in-flight produces before disposing the underlying client so the broker + // gets a chance to ack every send the bus has handed off. + var remaining = _inner.Flush(TimeSpan.FromSeconds(5)); + if (remaining > 0) + { + // Caller decides whether unacked messages are an error; here we accept best-effort. + } + _inner.Dispose(); + return ValueTask.CompletedTask; + } + + private static Message BuildMessage( + string key, + ReadOnlyMemory value, + IReadOnlyDictionary? headers) + { + var kafkaHeaders = new Headers(); + if (headers is not null) + foreach (var (k, v) in headers) + kafkaHeaders.Add(k, System.Text.Encoding.UTF8.GetBytes(v)); + + return new Message { Key = key, Value = value.ToArray(), Headers = kafkaHeaders }; + } +} +``` + +Register the `KafkaProducer` with idempotent writes enabled: + +```csharp +services.AddServiceConnect(builder => +{ + builder.AddRegistration(svc => + { + svc.AddSingleton(new ProducerConfig + { + BootstrapServers = "kafka.internal.example:9092", + EnableIdempotence = true, + Acks = Acks.All, + }); + svc.AddSingleton(); + }); +}); +``` + +When `PaymentProcessor` publishes a `PaymentAuthorised` message, the pipeline serialises it, calls `PublishAsync`, and the `KafkaProducer` delivers it to the `paymentprocessor-messages-paymentauthorised` topic. With `EnableIdempotence = true` and `Acks = All`, the `ProduceAsync` call does not complete until all in-sync replicas have written the record — the at-least-once guarantee is preserved even if the producer retries a transient network error. + +## See also + +- [The Bus](/ServiceConnect-CSharp/learn/core-concepts/the-bus/) — how the producer fits into the message pipeline +- [`IConsumer`](../iconsumer/) — the inbound counterpart diff --git a/website/src/content/docs/reference/filters/ifilter.mdx b/website/src/content/docs/reference/filters/ifilter.mdx new file mode 100644 index 000000000..80e1ce36f --- /dev/null +++ b/website/src/content/docs/reference/filters/ifilter.mdx @@ -0,0 +1,176 @@ +--- +title: IFilter +description: A short-circuiting stage in the consume or send pipeline — return FilterAction.Continue to proceed, FilterAction.Stop to stop. +--- + +import { Aside } from '@astrojs/starlight/components'; + +## Overview + +`IFilter` is a short-circuit stage in the pipeline — each filter returns `FilterAction.Continue` to proceed or `FilterAction.Stop` to stop the pipeline. Filters are cheap, synchronous-feeling hooks that fit neatly in front of a handler for concerns such as deduplication, tenant checks, or feature-flag gating. `IFilterPipeline` is the orchestrator that composes the registered filters into the outgoing, before-consuming, and after-consuming stages that wrap every handler invocation. + +See [Filters](/ServiceConnect-CSharp/learn/messaging-patterns/filters/) for the conceptual model, and reach for [`IMessageProcessingMiddleware`](../imessageprocessingmiddleware/) when you need an `await next()` style wrapper instead of a predicate. + +## IFilter + +### `ProcessAsync` + +```csharp +Task ProcessAsync(Envelope envelope, CancellationToken cancellationToken = default); +``` + +Inspects or mutates `envelope` and returns whether the pipeline should continue. + +**Parameters** +- `envelope` — the in-flight message envelope; headers may be read or written. +- `cancellationToken` — cancels the filter when the consumer loop is stopping. + +**Returns.** `FilterAction.Continue` to continue pipeline execution; `FilterAction.Stop` to stop the pipeline and suppress further stages. + +**Remarks.** Filters that need the bus should take `IBus` as a constructor dependency and be registered in DI. The historical `IFilter.Bus` property was never populated by the pipeline and returned null at runtime — it has been removed. + + + +--- + +## IFilterPipeline + +### `ExecuteOutgoingFiltersAsync` + +```csharp +Task ExecuteOutgoingFiltersAsync( + Envelope envelope, + CancellationToken cancellationToken = default); +``` + +Runs every outgoing filter in registration order against `envelope`. + +**Parameters** +- `envelope` — the envelope being published or sent. +- `cancellationToken` — cancels the pipeline when the caller abandons the send. + +**Returns.** `FilterAction.Stop` if any filter stopped the pipeline; `FilterAction.Continue` when the pipeline ran to completion. + +**Remarks.** Invoked for every publish, send, and reply. Filters run sequentially and the first `FilterAction.Stop` short-circuits the rest. + +--- + +### `ExecuteBeforeConsumingFiltersAsync` + +```csharp +Task ExecuteBeforeConsumingFiltersAsync( + Envelope envelope, + CancellationToken cancellationToken = default); +``` + +Runs the before-consuming filters that fence the handler call. + +**Parameters** +- `envelope` — the envelope about to be dispatched to a handler. +- `cancellationToken` — cancels the pipeline with the consumer loop. + +**Returns.** `FilterAction.Stop` if any filter stopped the pipeline; `FilterAction.Continue` when the pipeline ran to completion. + +--- + +### `ExecuteAfterConsumingFiltersAsync` + +```csharp +Task ExecuteAfterConsumingFiltersAsync( + Envelope envelope, + CancellationToken cancellationToken = default); +``` + +Runs the after-consuming filters once the handler has returned. + +**Parameters** +- `envelope` — the envelope whose handler just completed. +- `cancellationToken` — cancels the pipeline with the consumer loop. + +**Returns.** `FilterAction.Stop` if any filter stopped the pipeline; `FilterAction.Continue` when the pipeline ran to completion. Stopping here suppresses remaining post-processing stages but does not un-handle the message. + +**Remarks.** Useful for post-processing concerns such as metrics emission, audit trails, or cleanup that is cheaper to run as a predicate than a middleware. **Exceptions thrown from an after-consuming filter are caught by the dispatcher and logged at `Warning`**; they do not flip the dispatch outcome to `Success = false` or trigger redelivery. Reserve `AfterConsuming` for best-effort teardown that must not block acknowledgement, and use `OnConsumedSuccessfully` (below) for side-effects whose failure must redeliver the message. + +--- + +### `ExecuteOnConsumedSuccessfullyFiltersAsync` + +```csharp +Task ExecuteOnConsumedSuccessfullyFiltersAsync( + Envelope envelope, + CancellationToken cancellationToken = default); +``` + +Runs only after a successful handler invocation — the dispatcher's chain +returned `Success = true` and `NotHandled = false`. Failures and unhandled +messages skip this stage. + +A filter throwing here propagates as a dispatch failure: the dispatcher's +`catch` block sets `result.Success = false` and the broker redelivers. Use +this to record at-most-once side effects (deduplication keys, audit events, +outbox rows) that depend on the handler having actually completed. + +`FilterAction.Stop` halts further on-success filters but does **not** flip +`result.Success` to false — consumption already succeeded. + +## Usage + +### Dropping duplicate messages with a distributed cache + +```csharp +public sealed class DuplicateCheckFilter : IFilter +{ + private readonly IDistributedCache _cache; + private const string CachePrefix = "msg:"; + + public DuplicateCheckFilter(IDistributedCache cache) { _cache = cache; } + + public async Task ProcessAsync(Envelope envelope, CancellationToken cancellationToken = default) + { + if (!envelope.Headers.TryGetValue("MessageId", out var raw)) return FilterAction.Continue; + var cacheKey = CachePrefix + raw; + var existing = await _cache.GetAsync(cacheKey, cancellationToken); + return existing is null ? FilterAction.Continue : FilterAction.Stop; + } +} + +public sealed class DuplicateRecordFilter : IFilter +{ + private static readonly TimeSpan DedupeWindow = TimeSpan.FromHours(24); + private readonly IDistributedCache _cache; + private const string CachePrefix = "msg:"; + + public DuplicateRecordFilter(IDistributedCache cache) { _cache = cache; } + + public async Task ProcessAsync(Envelope envelope, CancellationToken cancellationToken = default) + { + if (!envelope.Headers.TryGetValue("MessageId", out var raw)) return FilterAction.Continue; + var cacheKey = CachePrefix + raw; + await _cache.SetAsync( + cacheKey, + new byte[] { 1 }, + new DistributedCacheEntryOptions { AbsoluteExpirationRelativeToNow = DedupeWindow }, + cancellationToken); + return FilterAction.Continue; + } +} + +// Registration during startup. +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(transport => transport.Host = "rabbit.internal.example"); + builder.ConfigureQueues(queues => queues.QueueName = "order-service"); + builder.AddBeforeConsumingFilter(); + builder.AddOnConsumedSuccessfullyFilter(); +}); +``` + +The pair of filters runs in two stages: the before-consuming stage short-circuits the dispatch when the `MessageId` is already recorded; the on-success stage records the id only after the handler has completed. Recording in the before-consuming stage (or in `AfterConsuming`, which runs on both success and failure) silently drops legitimate broker redeliveries after a handler crash — the canonical reason this redesign uses two filters rather than one. + +## See also + +- [Filters](/ServiceConnect-CSharp/learn/messaging-patterns/filters/) — concept +- [`IMessageProcessingMiddleware`](../imessageprocessingmiddleware/) — related reference +- [`IPipelineConfiguration`](../../configuration/ipipelineconfiguration/) — related reference diff --git a/website/src/content/docs/reference/filters/imessageprocessingmiddleware.mdx b/website/src/content/docs/reference/filters/imessageprocessingmiddleware.mdx new file mode 100644 index 000000000..d9629adc7 --- /dev/null +++ b/website/src/content/docs/reference/filters/imessageprocessingmiddleware.mdx @@ -0,0 +1,109 @@ +--- +title: IMessageProcessingMiddleware +description: Middleware that wraps the consume pipeline — observe or transform each inbound message with an await next() handoff. +--- + +## Overview + +`IMessageProcessingMiddleware` wraps the inbound consume pipeline with an `await next()` chain, so you can observe and/or transform each message before and after the handler runs. It is the right tool whenever you need to surround the handler in a `try/finally`, open a DI scope, record an `Activity`, or implement retry, logging, and outbox patterns. + +See [Filters](/ServiceConnect-CSharp/learn/messaging-patterns/filters/) for the conceptual tour and the trade-offs against an [`IFilter`](../ifilter/) predicate. + +## Reference + +### `ProcessAsync` + +```csharp +Task ProcessAsync( + ReadOnlyMemory messageBytes, Type messageType, object message, + IDictionary headers, Envelope envelope, + MessageProcessingDelegate next, + CancellationToken cancellationToken); +``` + +Processes an inbound message and optionally hands off to the next stage in the middleware chain by invoking `next`. + +**Parameters** +- `messageBytes` — the raw payload as it arrived from the transport, before deserialization. +- `messageType` — the resolved CLR type of `message`. +- `message` — the deserialized message instance that will eventually reach the handler. +- `headers` — the mutable header dictionary, carried through the chain. +- `envelope` — the current message envelope, shared across every stage. +- `next` — the delegate that invokes the remaining middleware and, eventually, the handler. Not calling it short-circuits the chain. +- `cancellationToken` — cancels processing when the consumer loop is stopping. + +**Returns.** A `ConsumeEventResult` — typically the value returned by `next`, though middleware may surface its own result (for example, a failure surfaced from a `catch`). + +**Remarks.** Middleware runs in registration order on the way in and unwinds in reverse on the way out, mirroring the familiar ASP.NET Core request pipeline. Use `try/finally` around the `next` call to guarantee teardown work runs even when the handler throws. + +--- + +### `MessageProcessingDelegate` + +```csharp +public delegate Task MessageProcessingDelegate( + ReadOnlyMemory messageBytes, Type messageType, object message, + IDictionary headers, Envelope envelope, + CancellationToken cancellationToken); +``` + +The continuation passed to each middleware as `next`. Invoking it advances the pipeline one step; awaiting the result lets the caller observe what the remainder of the chain returned. + +## Usage + +### Recording an Activity span per consumed message + +```csharp +public sealed class OpenTelemetryConsumeMiddleware : IMessageProcessingMiddleware +{ + private static readonly ActivitySource Source = new("ServiceConnect.Consume"); + + public async Task ProcessAsync( + ReadOnlyMemory messageBytes, Type messageType, object message, + IDictionary headers, Envelope envelope, + MessageProcessingDelegate next, + CancellationToken cancellationToken) + { + using var activity = Source.StartActivity( + $"Consume {messageType.Name}", + ActivityKind.Consumer); + + activity?.SetTag("messaging.system", "serviceconnect"); + activity?.SetTag("messaging.message.type", messageType.FullName); + if (headers.TryGetValue("MessageId", out var messageId)) + { + activity?.SetTag("messaging.message.id", messageId?.ToString()); + } + + try + { + var result = await next(messageBytes, messageType, message, headers, envelope, cancellationToken); + activity?.SetStatus(ActivityStatusCode.Ok); + return result; + } + catch (Exception ex) + { + activity?.SetStatus(ActivityStatusCode.Error, ex.Message); + activity?.AddException(ex); + throw; + } + } +} + +// Registration during startup. +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(transport => transport.Host = "rabbit.internal.example"); + builder.ConfigureQueues(queues => queues.QueueName = "shipping-service"); + builder.AddMessageProcessingMiddleware(); +}); +``` + +`OpenTelemetryConsumeMiddleware` sits outermost in the consume pipeline of the `ShippingSaga` service. Every inbound message opens a consumer `Activity` span, tags it with the message type and id, and closes it on the way out — propagating an exception also marks the span as errored before rethrowing so downstream middleware still observes the failure. + +## See also + +- [Filters](/ServiceConnect-CSharp/learn/messaging-patterns/filters/) — concept +- [Observability](/ServiceConnect-CSharp/learn/operations/observability/) — concept +- [`ISendMessageMiddleware`](../isendmessagemiddleware/) — related reference +- [`IFilter`](../ifilter/) — related reference diff --git a/website/src/content/docs/reference/filters/isendmessagemiddleware.mdx b/website/src/content/docs/reference/filters/isendmessagemiddleware.mdx new file mode 100644 index 000000000..6a222fc6d --- /dev/null +++ b/website/src/content/docs/reference/filters/isendmessagemiddleware.mdx @@ -0,0 +1,141 @@ +--- +title: ISendMessageMiddleware +description: Middleware that wraps outgoing send and publish operations — the outbound counterpart to IMessageProcessingMiddleware. +--- + +## Overview + +`ISendMessageMiddleware` is the outbound counterpart to [`IMessageProcessingMiddleware`](../imessageprocessingmiddleware/) — it wraps every publish and send with an `await next()` chain so you can inspect or mutate headers, add correlation metadata, or surround the transport call in a `try/finally`. `ISendMessagePipeline` is the orchestrator that composes the registered outbound middleware and is invoked by the bus for every outgoing message. + +See [Filters](/ServiceConnect-CSharp/learn/messaging-patterns/filters/) for the conceptual model and when to reach for a middleware over an outgoing `IFilter`. + +## ISendMessageMiddleware + +### `ProcessAsync` + +```csharp +Task ProcessAsync(SendContext context, SendMessageDelegate next, CancellationToken cancellationToken); +``` + +Processes an outgoing message and optionally hands off to the next middleware by awaiting `next`. + +**Parameters** +- `context` — a `SendContext` value that bundles all data for the outgoing message (see properties below). +- `next` — the delegate that invokes the remaining middleware and, eventually, the transport. Not calling it short-circuits the send. +- `cancellationToken` — cancels the operation before the transport acknowledges. + +**`SendContext` properties** +- `Message` — the strongly-typed outgoing `Message` instance; always present (`required`). +- `MessageType` — the CLR `Type` of the outgoing message, resolved before the call. +- `MessageBytes` — the already-serialized payload that will be written to the transport. +- `Headers` — the mutable string-valued header dictionary for the outgoing envelope. +- `EndPoint` — the explicit destination endpoint for a point-to-point send, or `null` for a broadcast publish. +- `RoutingKey` — the routing key used when publishing, or `null` for a direct send. +- `Operation` — a `SendOperation` discriminator (`Publish`, `Send`, or `Request`) so middleware can branch by operation type without inspecting other fields. `Request` covers the three request/reply call sites — `SendRequestAsync`, `SendRequestMultiAsync`, and `PublishRequestAsync` — which thread their typed message through the same outgoing pipeline. + +**Remarks.** Middleware runs in registration order on the way out and unwinds in reverse. Because `context.Headers` is passed through the chain, middleware composes cleanly — each stage can stamp its own metadata before delegating. + +**Why `SendContext`?** Bundling the outgoing data into a single parameter object lets observability middleware see the strongly-typed `Message` alongside `RoutingKey`, `EndPoint`, and `Operation` for every outgoing event — all the context a tracing or auditing hook needs without separate parameters. It also means future additions to the outgoing contract are non-breaking: new fields appear on `SendContext` and existing middleware continues to compile unchanged. + +--- + +### `SendMessageDelegate` + +```csharp +public delegate Task SendMessageDelegate(SendContext context, CancellationToken cancellationToken); +``` + +The continuation passed to each middleware as `next`. Invoking it advances the send pipeline one step toward the transport. + +--- + +## ISendMessagePipeline + +### `ExecutePublishMessagePipelineAsync` + +```csharp +Task ExecutePublishMessagePipelineAsync( + SendContext context, + CancellationToken cancellationToken = default); +``` + +Runs the configured outbound middleware chain for a publish and hands off to the transport. + +**Parameters** +- `context` — the `SendContext` describing the outgoing publish (see [`SendContext` properties](#isendmessagemiddleware) above). The bus populates `Operation = SendOperation.Publish` before invoking the pipeline. +- `cancellationToken` — cancels the pipeline before the broker acknowledges. + +**Remarks.** Called by the bus inside `PublishAsync`. Middleware sees every published message before the transport does. + +--- + +### `ExecuteSendMessagePipelineAsync` + +```csharp +Task ExecuteSendMessagePipelineAsync( + SendContext context, + CancellationToken cancellationToken = default); +``` + +Runs the configured outbound middleware chain for a point-to-point send. + +**Parameters** +- `context` — the `SendContext` describing the outgoing send. The bus populates `Operation = SendOperation.Send` (or `SendOperation.Request` for request/reply call sites) and an explicit `EndPoint` before invoking the pipeline. +- `cancellationToken` — cancels the pipeline before the broker acknowledges. + +**Remarks.** Called by the bus inside `SendAsync` and the request/reply send paths. Shares its middleware chain with `ExecutePublishMessagePipelineAsync` — a single middleware sees every outbound message regardless of shape. + +--- + +### `DisposeAsync` + +```csharp +ValueTask DisposeAsync(); +``` + +Disposes the pipeline and any middleware scopes it owns. Inherited from `IAsyncDisposable`; called by the host during bus shutdown. + +## Usage + +### Stamping a correlation header before publish + +```csharp +public sealed class CorrelationStampingMiddleware : ISendMessageMiddleware +{ + public Task ProcessAsync( + SendContext context, + SendMessageDelegate next, + CancellationToken cancellationToken) + { + // Only stamp if the caller has not already supplied a correlation id. + if (!context.Headers.ContainsKey("CorrelationHeader")) + { + var activityId = Activity.Current?.Id; + if (!string.IsNullOrEmpty(activityId)) + { + context.Headers["CorrelationHeader"] = activityId; + } + } + + context.Headers["SentAt"] = DateTimeOffset.UtcNow.ToString("O"); + + return next(context, cancellationToken); + } +} + +// Registration during startup. +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(transport => transport.Host = "rabbit.internal.example"); + builder.ConfigureQueues(queues => queues.QueueName = "payment-processor"); + builder.AddSendMessageMiddleware(); +}); +``` + +`CorrelationStampingMiddleware` runs in front of every outbound message from `PaymentProcessor`. When `Activity.Current` is set — typically by an inbound consume span or an ASP.NET Core request — its id is copied onto the outgoing envelope as `CorrelationHeader` so consumers downstream can thread the trace together. The middleware then delegates to `next`, which eventually hands the envelope to the transport. + +## See also + +- [Filters](/ServiceConnect-CSharp/learn/messaging-patterns/filters/) — concept +- [`IMessageProcessingMiddleware`](../imessageprocessingmiddleware/) — related reference +- [`IPipelineConfiguration`](../../configuration/ipipelineconfiguration/) — related reference diff --git a/website/src/content/docs/reference/handlers/event-args.mdx b/website/src/content/docs/reference/handlers/event-args.mdx new file mode 100644 index 000000000..25c44cade --- /dev/null +++ b/website/src/content/docs/reference/handlers/event-args.mdx @@ -0,0 +1,315 @@ +--- +title: Consume and outgoing event args +description: Event-argument DTOs raised by the bus for observers — telemetry, custom logging, diagnostics. +--- + +import { Aside } from '@astrojs/starlight/components'; + +## Overview + +The bus raises a handful of event-argument DTOs that let observers inspect messages as they pass through the consume and outgoing pipelines. Telemetry, custom logging, and diagnostic middleware are the typical consumers. This page documents `ConsumeEventArgs`, `ConsumeEventResult`, `OutgoingEventArgs`, and the two concrete outgoing types (`PublishEventArgs`, `SendEventArgs`). + +See [Observability](/ServiceConnect-CSharp/learn/operations/observability/) for how these DTOs slot into a diagnostic pipeline. + +## Reference + +## `ConsumeEventArgs` + +Carries the raw message data received by the telemetry consume pipeline. + +### `Message` + +```csharp +public byte[] Message { get; init; } = []; +``` + +Gets the raw message body bytes as received from the transport, before any deserialisation. + +--- + +### `BodySize` + +```csharp +public int BodySize { get; init; } +``` + +Gets the on-wire body length in bytes. Always populated by the consume middleware, even when `Message` is the empty sentinel array because no enricher requested the materialised bytes. Used to stamp the OTel `messaging.message.body.size` attribute correctly on every consume span. + +--- + +### `Type` + +```csharp +public string Type { get; init; } = string.Empty; +``` + +Gets the message type name taken from the transport headers. Useful when an observer needs to branch without paying to decode the body. + +--- + +### `Headers` + +```csharp +public IReadOnlyDictionary Headers { get; init; } +``` + +Gets the transport headers associated with the consumed message. Defaults to an empty case-sensitive dictionary when no headers are supplied. + +**Remarks.** Header values are typed as `object` because transports expose strings, byte arrays, and numeric values through the same channel. Decode defensively when reading. The dictionary is read-only; middleware that needs to produce a modified header bag must construct a new `ConsumeEventArgs` with a fresh dictionary. + +--- + +## `ConsumeEventResult` + +Represents the outcome of invoking a consumer callback. Framework-produced and consumer-observed only; the properties are `init`-only and have no defined meaning when mutated post-construction. + +### `Success` + +```csharp +public bool Success { get; init; } +``` + +Whether the consumer callback completed successfully. A `false` value with a populated `Exception` is the failure shape. + +--- + +### `NotHandled` + +```csharp +public bool NotHandled { get; init; } +``` + +Whether the dispatcher ran to completion but no processor claimed the message. Distinct from `Success`: a handler-less message is not a failure, but callers may want to route it to the error exchange rather than silently acking — see [`IBusConfiguration.DeadLetterUnhandledMessages`](../../bus/ibusconfiguration/#deadletterunhandledmessages). + +--- + +### `Exception` + +```csharp +public Exception? Exception { get; init; } +``` + +The exception raised by the consumer, if any. Null on success. + +--- + +### `TerminalFailure` + +```csharp +public bool TerminalFailure { get; init; } +``` + +Whether the failure is terminal — the message is permanently malformed (e.g. a JSON parse failure) and retrying will produce the identical failure. When `true`, transports bypass the retry queue and route the message directly to the error exchange rather than burning the retry budget on a poison payload. + +**Remarks.** Distinct from `Success`=false: a terminal failure reflects a structural fault in the payload itself (deserialisation failure), not a transient handler error. Handler-thrown exceptions are non-terminal and remain eligible for retry. Transports that do not honour this flag fall back to the normal retry path. + +--- + +## `OutgoingEventArgs` + +```csharp +public abstract class OutgoingEventArgs +{ + protected OutgoingEventArgs(); + // ...members below +} +``` + +Base event payload for outgoing publish and send telemetry. The class is `abstract` with a `protected` constructor — only the concrete subtypes (`PublishEventArgs`, `SendEventArgs`) can be instantiated, which keeps user code from raising synthetic outgoing events through the framework's event surface. + +### `Message` + +```csharp +public Message? Message { get; init; } +``` + +Gets the outgoing message instance, when the pipeline supplied it. May be null for telemetry raised from paths that operate on raw bytes. + +--- + +### `Headers` + +```csharp +public IDictionary Headers { get; init; } +``` + +Gets the outgoing transport headers. Unlike the consume side, outgoing headers are a plain `string`-valued dictionary. `init`-only so a subscriber can mutate individual entries — e.g. a telemetry hook stamping `traceparent` — without being able to swap the entire dictionary out and strip the framework's required `MessageType`/`CorrelationId` entries before transport send. The initialiser rejects null with `ArgumentNullException`. + +--- + +## `PublishEventArgs` + +`PublishEventArgs : OutgoingEventArgs` — outgoing telemetry payload for published messages. + +### `Exchange` + +```csharp +public string Exchange { get; init; } = string.Empty; +``` + +The transport-side exchange name the message was published to. Empty when the publish was anonymous (e.g. a routing-key-only publish through the default exchange). Telemetry uses this as the `messaging.destination.name` span attribute. + +--- + +### `RoutingKey` + +```csharp +public string RoutingKey { get; init; } = string.Empty; +``` + +The routing key used when publishing the message. For broadcast publishes without a key override the value is empty. + +--- + +## `SendEventArgs` + +`SendEventArgs : OutgoingEventArgs` — outgoing telemetry payload for point-to-point sends. Multi-endpoint fan-out (`IBus.SendToManyAsync`) raises one `SendEventArgs` per destination — each with its own per-delivery `EndPoint`. Subscribers that need to correlate fan-out deliveries should match on the message `CorrelationId`, which stays stable across the per-endpoint events. + +### `EndPoint` + +```csharp +public string EndPoint { get; init; } = string.Empty; +``` + +The destination endpoint for this delivery. + +## Usage + +### Recommended: use the `ServiceConnect.Telemetry` package + +For most applications, `builder.AddTelemetry()` is the right choice. It wires the built-in publish, send, and consume middleware and handles W3C `traceparent`/`tracestate` propagation automatically: + +```csharp +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(/* ... */); + builder.AddTelemetry(opts => { /* optional enrichment */ }); +}); +``` + +See [Observability — Tracing](/ServiceConnect-CSharp/learn/operations/observability/#tracing-opentelemetry) for full wiring details, enrichment options, and how to register the activity sources with your OTel pipeline. + +### If you need a custom middleware + +When the built-in telemetry isn't enough — for example, to route spans to a non-OTel sink or apply bespoke sampling logic — implement `IMessageProcessingMiddleware` (consume side) or `ISendMessageMiddleware` (send side) directly. + +#### Consume side + +```csharp +public sealed class OpenTelemetryConsumeMiddleware : IMessageProcessingMiddleware +{ + private static readonly ActivitySource Source = new("ServiceConnect"); + + public async Task ProcessAsync( + ReadOnlyMemory messageBytes, + Type messageType, + object message, + IDictionary headers, + Envelope envelope, + MessageProcessingDelegate next, + CancellationToken cancellationToken) + { + // Shape the consume-event args for downstream collectors before we + // start the span — the same bag of data a telemetry exporter would + // emit on the bus's ConsumeEvent callback. + // Headers is IReadOnlyDictionary; pass a copy via AsReadOnly or + // construct a new ReadOnlyDictionary wrapper. + var consumeArgs = new ConsumeEventArgs + { + Message = envelope.Body.ToArray(), + Type = envelope.Headers.TryGetValue("MessageType", out var t) + ? t?.ToString() ?? string.Empty + : string.Empty, + // ConsumeEventArgs documents Headers as case-sensitive (StringComparer.Ordinal); + // copying without the comparer would silently swap in the default + // (case-insensitive on platforms where Dictionary's default is invariant). + Headers = new Dictionary(envelope.Headers, StringComparer.Ordinal), + }; + // The initializer above works because Dictionary implements + // IReadOnlyDictionary. + + using var activity = Source.StartActivity( + $"consume {consumeArgs.Type}", + ActivityKind.Consumer); + + activity?.SetTag("servicebus.message.type", consumeArgs.Type); + activity?.SetTag("servicebus.message.size", consumeArgs.Message.Length); + + try + { + var result = await next(messageBytes, messageType, message, headers, envelope, cancellationToken); + RecordResult(activity, result); + return result; + } + catch (Exception ex) + { + RecordResult(activity, new ConsumeEventResult + { + Success = false, + Exception = ex, + }); + throw; + } + } + + private static void RecordResult(Activity? activity, ConsumeEventResult result) + { + activity?.SetTag("servicebus.consume.success", result.Success); + activity?.SetTag("servicebus.consume.not_handled", result.NotHandled); + if (!result.Success) + { + activity?.SetStatus(ActivityStatusCode.Error, result.Exception?.Message); + } + } +} +``` + +A custom `IMessageProcessingMiddleware` is the natural host for observing the consume-side transition. The `ConsumeEventArgs` shape mirrors the data available to telemetry exporters, and `ConsumeEventResult` captures the success/failure fork so the span status records the real outcome. + +#### Send side + +The outgoing counterpart uses `ISendMessageMiddleware` with the `SendContext` parameter object, which carries the strongly-typed `Message`, `MessageType`, serialized `MessageBytes`, `Headers`, `EndPoint`, `RoutingKey`, and `Operation`: + +```csharp +public sealed class OpenTelemetrySendMiddleware : ISendMessageMiddleware +{ + private static readonly ActivitySource Source = new("ServiceConnect"); + + public async Task ProcessAsync( + SendContext context, + SendMessageDelegate next, + CancellationToken cancellationToken) + { + using var activity = Source.StartActivity( + $"publish {context.MessageType.Name}", + ActivityKind.Producer); + + activity?.SetTag("servicebus.message.type", context.MessageType.FullName); + activity?.SetTag("servicebus.message.size", context.MessageBytes.Length); + if (context.RoutingKey is not null) + { + activity?.SetTag("servicebus.routing_key", context.RoutingKey); + } + if (context.EndPoint is not null) + { + activity?.SetTag("servicebus.endpoint", context.EndPoint); + } + + try + { + await next(context, cancellationToken); + } + catch (Exception ex) + { + activity?.SetStatus(ActivityStatusCode.Error, ex.Message); + throw; + } + } +} +``` + +## See also + +- [Observability](/ServiceConnect-CSharp/learn/operations/observability/) — concept +- [`IMessageProcessingMiddleware`](../../filters/imessageprocessingmiddleware/) — related reference +- [`ISendMessageMiddleware`](../../filters/isendmessagemiddleware/) — related reference diff --git a/website/src/content/docs/reference/handlers/iconsumecontext.mdx b/website/src/content/docs/reference/handlers/iconsumecontext.mdx new file mode 100644 index 000000000..cd219495c --- /dev/null +++ b/website/src/content/docs/reference/handlers/iconsumecontext.mdx @@ -0,0 +1,143 @@ +--- +title: IConsumeContext +description: The per-message ambient context supplied to handlers — headers, correlation id, reply helper, bus handle. +--- + +import { Aside } from '@astrojs/starlight/components'; + +## Overview + +`IConsumeContext` is the per-message ambient context the dispatch pipeline injects into a handler. It exposes the bus handle, the raw transport headers, the message id and correlation id, a cancellation token tied to the consumer loop, and a convenience `ReplyAsync` that sets the correct headers for request/reply correlation. Handlers reach for it when they need to inspect headers, reply to a request, or publish a follow-up message on the same bus. + +See [Handlers](/ServiceConnect-CSharp/learn/core-concepts/handlers/) for the conceptual tour. + +## Reference + +### `Bus` + +```csharp +IBus Bus { get; } +``` + +Gets the bus instance on which the message arrived. Use it to publish or send follow-up messages from inside a handler without taking an extra constructor dependency. + +--- + +### `Headers` + +```csharp +IReadOnlyDictionary Headers { get; } +``` + +Gets a read-only view of the transport headers as they arrived. Values are typed as `object` because transports such as RabbitMQ expose bytes, strings, and numeric values through a single untyped channel. + +**Remarks.** Handlers must not mutate headers — the transport layer retains the mutable copy. If you need a header's value as a specific type, defensively cast or decode (a byte array may need to be converted to a string). + +--- + +### `MessageId` + +```csharp +string? MessageId { get; } +``` + +Gets the message id header, when the producer or transport set one. Useful as a deduplication key in idempotent handlers. + +--- + +### `CorrelationId` + +```csharp +Guid CorrelationId { get; } +``` + +Gets the correlation id carried by the incoming message. The same value threads through every follow-up message produced during the handler, which is what makes distributed traces readable. + +--- + +### `CancellationToken` + +```csharp +CancellationToken CancellationToken { get; } +``` + +Gets a cancellation token tied to the consumer loop. It fires when consumption is stopped — propagate it through every async call the handler makes so shutdown is prompt. + +--- + +### `ReplyAsync` + +```csharp +Task ReplyAsync( + TReply message, + ReplyOptions? options = null, + CancellationToken cancellationToken = default) + where TReply : Message; +``` + +Sends `message` back to the requester as a reply. The helper sets the `ResponseMessageId` header so the originating `SendRequestAsync` call is correlated with this reply. + +**Parameters** +- `message` — the reply payload; must derive from `Message`. +- `options` — optional `ReplyOptions` carrying additional headers on `options.Headers`. +- `cancellationToken` — cancels the send before the broker acknowledges. + +**Remarks.** The method only correlates cleanly when it is called from inside the handler that is consuming the originating request — the headers on the incoming message supply the `ResponseMessageId` value. + +## Usage + +### Reading a header and replying to a request + +```csharp +public sealed class QuoteShippingHandler : IMessageHandler +{ + private readonly IShippingRateEngine _rates; + + public QuoteShippingHandler(IShippingRateEngine rates) => _rates = rates; + + public async Task HandleAsync(QuoteShipping message, IConsumeContext context, CancellationToken cancellationToken = default) + { + // Priority is optional on the request; default to "standard" when absent. + var priority = context.Headers.TryGetValue("ShippingPriority", out var raw) + ? DecodeString(raw) + : "standard"; + + var quote = await _rates.QuoteAsync( + message.Destination, + priority, + context.CancellationToken); + + await context.ReplyAsync(new ShippingQuote + { + OrderId = message.OrderId, + Cost = quote.Cost, + CarrierCode = quote.CarrierCode, + }, cancellationToken: context.CancellationToken); + } + + private static string DecodeString(object value) => + value switch + { + string s => s, + byte[] b => System.Text.Encoding.UTF8.GetString(b), + _ => value.ToString() ?? string.Empty, + }; +} +``` + +A request handler typically reads a pinch of metadata from `Headers`, does the work, and replies through `ctx.ReplyAsync`. Because `ReplyAsync` reads the incoming message id out of `Headers`, the requesting `SendRequestAsync` call resumes with the correct reply automatically — no manual correlation required. + +## Per-instance scope isolation + +The internal `ConsumeScopeAccessor` that tracks the current message scope is **per-`Bus`-instance** — it is not a process-wide static. Two `Bus` instances running in the same AppDomain do not share scope state; each consumer loop writes only to its own accessor. This means: + +- A handler running on bus A cannot accidentally read the current message context set by bus B's consumer. +- A handler running on bus B is unaffected by concurrent dispatches on bus A. + +This matters in test scenarios that construct multiple `Bus` instances side-by-side in the same test process, and in multi-tenant application hosts that configure more than one bus registration. If your handler reaches for ambient context via the injected `IConsumeContext` property, it always receives the context for the exact bus that dispatched it. + +## See also + +- [Handlers](/ServiceConnect-CSharp/learn/core-concepts/handlers/) — concept +- [`Envelope`](../../messages/envelope/) — related reference +- [`Message`](../../messages/message/) — related reference diff --git a/website/src/content/docs/reference/handlers/imessagehandler.mdx b/website/src/content/docs/reference/handlers/imessagehandler.mdx new file mode 100644 index 000000000..4fc388a06 --- /dev/null +++ b/website/src/content/docs/reference/handlers/imessagehandler.mdx @@ -0,0 +1,106 @@ +--- +title: IMessageHandler +description: The contract for consuming a single message type; implementations are discovered via DI and invoked per message. +--- + +import { Aside } from '@astrojs/starlight/components'; + +## Overview + +`IMessageHandler` is the contract you implement to consume a single message type. Implementations are discovered by the handler registry and resolved from DI per message; the dispatch pipeline invokes `HandleAsync`, passing the per-message context directly as a parameter. Multiple handlers may be registered for the same message type — all of them run. + +See [Handlers](/ServiceConnect-CSharp/learn/core-concepts/handlers/) for the conceptual tour. + +## Reference + +The interface is declared with a contravariant type parameter constrained to `Message`: + +```csharp +public interface IMessageHandler where TMessage : Message +``` + +### `HandleAsync` + +```csharp +Task HandleAsync(TMessage message, IConsumeContext context, CancellationToken cancellationToken = default); +``` + +Invoked once per delivered message. The dispatch pipeline passes the per-message `IConsumeContext` directly so handlers are safe to register as singletons or across concurrent dispatches without races on shared state. Returning a faulted `Task` (or throwing synchronously) signals failure to the pipeline, which applies the configured retry and error-handling policy. + +**Parameters** +- `message` — the deserialised message; guaranteed non-null when `HandleAsync` is invoked by the dispatcher. +- `context` — the per-message consume context (bus handle, correlation id, reply helper); guaranteed non-null when invoked by the dispatcher. +- `cancellationToken` — sourced from the transport consume context; signals cooperative shutdown. Pass it through to downstream awaits so long-running handlers unwind cleanly when the bus stops consuming. + +**Remarks.** The generic parameter is constrained to `Message`, matching the constraint on `IBus.PublishAsync` and `IBus.SendAsync`. Keep the handler's work inside the awaited task — the pipeline acknowledges the broker only once this task completes successfully. + + + +## Usage + +### Idempotent handler + +```csharp +public sealed class OrderPlacedHandler : IMessageHandler +{ + private readonly IOrderRepository _orders; + + public OrderPlacedHandler(IOrderRepository orders) => _orders = orders; + + public async Task HandleAsync(OrderPlaced message, IConsumeContext context, CancellationToken cancellationToken = default) + { + // Use the message id as a deduplication key so retries and duplicate + // deliveries never write the same row twice. + var dedupKey = context.MessageId ?? message.CorrelationId.ToString(); + + if (await _orders.ExistsAsync(dedupKey)) + { + return; + } + + await _orders.InsertAsync(new OrderRecord + { + DedupKey = dedupKey, + OrderId = message.OrderId, + CustomerId = message.CustomerId, + Total = message.Total, + }); + } +} +``` + +A handler is the natural place to enforce idempotency. Writing through a deduplication key (message id or correlation id) means redelivered messages collapse to a single row even when the broker retries after a transient acknowledgement failure. + +### Handler publishing a follow-up event + +```csharp +public sealed class OrderPlacedHandler : IMessageHandler +{ + private readonly IPaymentGateway _payments; + + public OrderPlacedHandler(IPaymentGateway payments) => _payments = payments; + + public async Task HandleAsync(OrderPlaced message, IConsumeContext context, CancellationToken cancellationToken = default) + { + var authorization = await _payments.AuthorizeAsync( + message.CustomerId, + message.Total); + + await context.Bus.PublishAsync(new OrderConfirmed(message.CorrelationId) + { + OrderId = message.OrderId, + AuthorizationCode = authorization.Code, + }); + } +} +``` + +Handlers routinely trigger the next step of a workflow. Reach `IBus` through the supplied `context.Bus` and `PublishAsync` the follow-up event once the handler's side-effects are durable. The broker acknowledgement for `OrderPlaced` is only sent after `HandleAsync` returns, so the follow-up publish and the ack form a conceptual unit. + +## See also + +- [Handlers](/ServiceConnect-CSharp/learn/core-concepts/handlers/) — concept +- [`IConsumeContext`](../iconsumecontext/) — related reference +- [`IStreamHandler`](../istreamhandler/) — related reference diff --git a/website/src/content/docs/reference/handlers/istreamhandler.mdx b/website/src/content/docs/reference/handlers/istreamhandler.mdx new file mode 100644 index 000000000..70392e830 --- /dev/null +++ b/website/src/content/docs/reference/handlers/istreamhandler.mdx @@ -0,0 +1,83 @@ +--- +title: IStreamHandler +description: The contract for consuming a streaming message sent via IBus.CreateStream — the assembled byte payload is delivered once all chunks arrive. +--- + +import { Aside } from '@astrojs/starlight/components'; + +## Overview + +`IStreamHandler` is the contract for consuming a streaming message sent by a producer via [`IBus.CreateStream()`](../../bus/ibus/#createstreamt). The dispatch pipeline reassembles the in-order byte packets into a single `IMessageBusReadStream` and calls `ExecuteAsync` exactly once the complete payload has arrived, passing the stream directly as a parameter. Reach for this interface when the payload is too large or too streamy to carry in the body of a normal `Message`. + +See [Streaming](/ServiceConnect-CSharp/learn/messaging-patterns/streaming/) for the pattern tour. + +## Reference + +The interface is declared with a single type parameter constrained to `Message`: + +```csharp +public interface IStreamHandler where TMessage : Message +``` + +### `ExecuteAsync` + +```csharp +Task ExecuteAsync(TMessage message, IMessageBusReadStream stream, CancellationToken cancellationToken = default); +``` + +Invoked once the full stream has arrived and been reassembled. The reassembled stream is passed directly as `stream`, positioned at the start of the payload and ready to read. + +**Parameters** +- `message` — the control message carrying metadata about the streamed payload (file name, content type, anything else the producer attached). +- `stream` — the read stream over the reassembled payload bytes. Guaranteed non-null when invoked by the dispatcher. +- `cancellationToken` — token to observe for cancellation; flows through from the dispatcher. + +**Remarks.** `ExecuteAsync` is async-first on this interface — await downstream I/O directly and pass the supplied `CancellationToken` through so long-running work can be cancelled. The stream is not `IDisposable` — the framework owns its lifetime via `StreamProcessor`. Handlers must not attempt to dispose it. Reading the stream to completion is the only handler-side action available. The handler still occupies a consumer slot while it runs, so offload heavy work appropriately if the consumer concurrency budget is tight. + + + +## Usage + +### Writing an uploaded file to disk in chunks + +```csharp +public sealed class FileUploadStreamHandler : IStreamHandler +{ + private readonly IFileStorage _storage; + + public FileUploadStreamHandler(IFileStorage storage) => _storage = storage; + + public async Task ExecuteAsync(FileUpload message, IMessageBusReadStream stream, CancellationToken cancellationToken = default) + { + var destination = _storage.OpenWrite(message.FileName); + try + { + // IMessageBusReadStream materialises the fully reassembled payload via Read() + // (returns byte[]) or ReadSequence() (returns ReadOnlySequence). For very + // large payloads, prefer ReadSequence() to walk segment-by-segment without + // forcing a single contiguous allocation. + foreach (var segment in stream.ReadSequence()) + { + await destination.WriteAsync(segment, cancellationToken); + } + } + finally + { + destination.Dispose(); + // IMessageBusReadStream is not IDisposable — the handler does not own + // the stream's lifetime. Broker resources are released when the dispatch + // completes and the StreamProcessor evicts the per-sequence entry. + } + } +} +``` + +Streaming handlers are ideal for large uploads — the file never materialises in memory as a single `byte[]` if the handler walks `ReadSequence()` segment-by-segment. The framework owns the stream's lifetime — handlers must not dispose it. + +## See also + +- [Streaming](/ServiceConnect-CSharp/learn/messaging-patterns/streaming/) — concept +- [`IMessageHandler`](../imessagehandler/) — related reference +- [`IBus.CreateStream`](../../bus/ibus/#createstreamt) — producer API diff --git a/website/src/content/docs/reference/healthchecks/index.mdx b/website/src/content/docs/reference/healthchecks/index.mdx new file mode 100644 index 000000000..ec33cb4a6 --- /dev/null +++ b/website/src/content/docs/reference/healthchecks/index.mdx @@ -0,0 +1,312 @@ +--- +title: ServiceConnect.HealthChecks +description: Three opt-in IHealthCheck classes for Microsoft.Extensions.Diagnostics.HealthChecks — bus liveness, consumer connection, producer connection. Transport-agnostic. +--- + +import { Aside } from '@astrojs/starlight/components'; + +## Overview + +`ServiceConnect.HealthChecks` is the optional package that ships health-check classes for `Microsoft.Extensions.Diagnostics.HealthChecks`. It contains three sealed `IHealthCheck` implementations and three matching extension methods on `IHealthChecksBuilder`. The package is transport-agnostic — it depends only on `ServiceConnect.Interfaces`. A future transport that implements `IBus`, `IConsumer`, and `IProducer` works with these checks unchanged. + +Each check is O(1), allocation-light, and side-effect-free: it inspects last-known in-process state through a public interface property (`IBus.IsConsuming`, `IConsumer.IsConnected`, `IProducer.IsHealthy`). No broker channels are opened per probe, no AMQP round-trips are issued. Each check honours the supplied `CancellationToken` — probes cancelled by the health-check framework surface as `OperationCanceledException` rather than returning a stale result. + +See [Observability — Health checks](/ServiceConnect-CSharp/learn/operations/observability/) for the conceptual walk-through, K8s liveness/readiness wiring, and the producer-lazy-connect caveat. + +## Installation + +```bash +dotnet add package ServiceConnect.HealthChecks +``` + +Then call any combination of `AddServiceConnectBus`, `AddServiceConnectConsumer`, and `AddServiceConnectProducer` on `services.AddHealthChecks()` — pick the methods that match what your host actually does. + +## HealthChecksBuilderExtensions + +Static class containing the three registration extension methods. Each registers exactly one `HealthCheckRegistration`; tags, failure status, name, and timeout flow through verbatim. + +### `AddServiceConnectBus` + +```csharp +// Default — resolves IBus via GetRequiredService() from DI +public static IHealthChecksBuilder AddServiceConnectBus( + this IHealthChecksBuilder builder, + string name = "serviceconnect-bus", + HealthStatus failureStatus = HealthStatus.Unhealthy, + IEnumerable? tags = null, + TimeSpan? timeout = null); + +// Factory overload — useful for multi-bus hosts +public static IHealthChecksBuilder AddServiceConnectBus( + this IHealthChecksBuilder builder, + string name, + Func busFactory, + HealthStatus failureStatus = HealthStatus.Unhealthy, + IEnumerable? tags = null, + TimeSpan? timeout = null); + +// Keyed-services convenience overload +public static IHealthChecksBuilder AddServiceConnectBus( + this IHealthChecksBuilder builder, + string name, + object serviceKey, + HealthStatus failureStatus = HealthStatus.Unhealthy, + IEnumerable? tags = null, + TimeSpan? timeout = null); + +// Configurable recovery-grace window + optional TimeProvider and consumer factory +public static IHealthChecksBuilder AddServiceConnectBus( + this IHealthChecksBuilder builder, + string name, + Func busFactory, + TimeSpan recoveryGraceWindow, + TimeProvider? timeProvider = null, + Func? consumerFactory = null, + HealthStatus failureStatus = HealthStatus.Unhealthy, + IEnumerable? tags = null, + TimeSpan? timeout = null); +``` + +Registers `BusConsumingHealthCheck`. The default overload resolves `IBus` via `GetRequiredService()` inside a `PerProviderCache` factory, so the same probe instance is reused for the lifetime of the `IServiceProvider`. Use the factory or keyed-services overload when multiple named bus instances are registered in the same DI container. The fourth overload is the one to reach for from tests (with `FakeTimeProvider`) or when the default 30s recovery-grace window does not match the host's broker-recovery characteristics; threading the optional `consumerFactory` through enables broker-cancelled short-circuit for hosts that observe `IConsumer` separately from `IBus`. + +**Parameters (default overload)** +- `builder` — the `IHealthChecksBuilder` returned by `services.AddHealthChecks()`. +- `name` — registration name. Defaults to `"serviceconnect-bus"`. +- `failureStatus` — status to return when the bus is not consuming. Defaults to `Unhealthy`. +- `tags` — tags attached to the registration (use these with `MapHealthChecks` predicates to split liveness/readiness endpoints). +- `timeout` — per-check timeout. Defaults to none — the check is O(1) and does not need one. + +### `AddServiceConnectConsumer` + +```csharp +// Default — resolves IConsumer via GetRequiredService() from DI +public static IHealthChecksBuilder AddServiceConnectConsumer( + this IHealthChecksBuilder builder, + string name = "serviceconnect-consumer", + HealthStatus failureStatus = HealthStatus.Unhealthy, + IEnumerable? tags = null, + TimeSpan? timeout = null); + +// Factory overload +public static IHealthChecksBuilder AddServiceConnectConsumer( + this IHealthChecksBuilder builder, + string name, + Func consumerFactory, + HealthStatus failureStatus = HealthStatus.Unhealthy, + IEnumerable? tags = null, + TimeSpan? timeout = null); + +// Keyed-services convenience overload +public static IHealthChecksBuilder AddServiceConnectConsumer( + this IHealthChecksBuilder builder, + string name, + object serviceKey, + HealthStatus failureStatus = HealthStatus.Unhealthy, + IEnumerable? tags = null, + TimeSpan? timeout = null); + +// Configurable recovery-grace window + optional TimeProvider +public static IHealthChecksBuilder AddServiceConnectConsumer( + this IHealthChecksBuilder builder, + string name, + Func consumerFactory, + TimeSpan recoveryGraceWindow, + TimeProvider? timeProvider = null, + HealthStatus failureStatus = HealthStatus.Unhealthy, + IEnumerable? tags = null, + TimeSpan? timeout = null); +``` + +Registers `ConsumerConnectionHealthCheck`. Same factory pattern as `AddServiceConnectBus`. The default name is `"serviceconnect-consumer"`. Skip this on publish-only hosts. The fourth overload accepts an explicit recovery-grace window and optional `TimeProvider`; use it from tests (`FakeTimeProvider`) or when the default 30s grace does not match the host's broker-recovery characteristics. + +### `AddServiceConnectProducer` + +```csharp +// Default — resolves IProducer via GetRequiredService() from DI +public static IHealthChecksBuilder AddServiceConnectProducer( + this IHealthChecksBuilder builder, + string name = "serviceconnect-producer", + HealthStatus failureStatus = HealthStatus.Unhealthy, + IEnumerable? tags = null, + TimeSpan? timeout = null); + +// Factory overload +public static IHealthChecksBuilder AddServiceConnectProducer( + this IHealthChecksBuilder builder, + string name, + Func producerFactory, + HealthStatus failureStatus = HealthStatus.Unhealthy, + IEnumerable? tags = null, + TimeSpan? timeout = null); + +// Keyed-services convenience overload +public static IHealthChecksBuilder AddServiceConnectProducer( + this IHealthChecksBuilder builder, + string name, + object serviceKey, + HealthStatus failureStatus = HealthStatus.Unhealthy, + IEnumerable? tags = null, + TimeSpan? timeout = null); +``` + +Registers `ProducerConnectionHealthCheck`. The default name is `"serviceconnect-producer"`. Skip this on consume-only hosts. + + + +## Health-check classes + +Each class is `public sealed`, takes its observed interface via constructor with `ArgumentNullException.ThrowIfNull`, and returns `Task.FromResult` from a synchronous method body. + +### `BusConsumingHealthCheck` + +```csharp +public sealed class BusConsumingHealthCheck : IHealthCheck +{ + // Default 30s recovery grace; system TimeProvider; no consumer + // supplied (no broker-cancelled short-circuit beyond IBus.IsCancelledByBroker). + public BusConsumingHealthCheck(IBus bus); + + // Configurable recovery-grace window and optional consumer for broker-cancelled + // short-circuit. Pass TimeSpan.Zero to disable grace (suits liveness probes). + public BusConsumingHealthCheck( + IBus bus, + IConsumer? consumer, + TimeSpan recoveryGraceWindow, + TimeProvider timeProvider); + + public Task CheckHealthAsync( + HealthCheckContext context, + CancellationToken cancellationToken = default); +} +``` + +The check evaluates four observed states in order; the first match wins: + +1. **`IBus.IsConsuming == true`** — returns `Healthy("Bus is consuming.")` and stamps the last-Healthy timestamp used by the recovery-grace path. +2. **Broker-cancelled** — when the supplied `IConsumer.IsCancelledByBroker` is `true`, OR (parameterless-ctor path) when `IBus.IsCancelledByBroker` is `true`. Returns `new HealthCheckResult(failureStatus, "Bus is not consuming (broker cancelled the consumer).")`. Bypasses the grace window — a `basic.cancel` event (queue deleted, policy expired, mirror promoted) is terminal until the consumer restarts. +3. **Stopped or disposed** — when `IBus.IsStopped` is `true`. Returns `new HealthCheckResult(failureStatus, "Bus is not consuming (stopped or disposed).")`. Also bypasses grace; there is no reconnect to wait for. +4. **Within the recovery-grace window** — when the bus has been observed Healthy at some prior point AND the time since that observation is less than `recoveryGraceWindow`, returns `Healthy("Bus is not consuming, but within recovery grace (…).")`. This is the readiness-friendly path: a momentary broker disconnect (auto-recovery, network blip, broker bounce) does not crash-loop pods wired on liveness probes. + +If none of the above matches, the check returns `new HealthCheckResult(failureStatus, "Bus is not consuming.")` where `failureStatus = context.Registration?.FailureStatus ?? HealthStatus.Unhealthy`. + +The recovery-grace window defaults to **30 seconds** when the parameterless constructor is used. Pass `TimeSpan.Zero` to the 4-arg ctor to disable grace (suits liveness probes that must flip immediately on disconnect). The `TimeProvider` parameter is injectable for tests. + +The grace state is keyed on the `IBus` instance via a `ConditionalWeakTable`, so per-probe re-allocations performed by `HealthCheckService` do not reset the last-Healthy timestamp. A never-Healthy probe (the first-probe case) always reports Unhealthy regardless of the grace window — there is no equivalent to `IProducer.HasAttemptedConnection` for consumers; a never-Healthy consumer is genuinely unhealthy, not lazy. + +### `ConsumerConnectionHealthCheck` + +```csharp +public sealed class ConsumerConnectionHealthCheck : IHealthCheck +{ + // Default 30s recovery grace; system TimeProvider. + public ConsumerConnectionHealthCheck(IConsumer consumer); + + // Configurable recovery-grace window and injectable TimeProvider for tests. + public ConsumerConnectionHealthCheck( + IConsumer consumer, + TimeSpan recoveryGraceWindow, + TimeProvider timeProvider); + + public Task CheckHealthAsync( + HealthCheckContext context, + CancellationToken cancellationToken = default); +} +``` + +The check evaluates four observed states in order; the first match wins: + +1. **Broker-cancelled** — when `IConsumer.IsCancelledByBroker` is `true`. Returns `new HealthCheckResult(failureStatus, "Consumer connection is closed (broker cancelled the consumer).")`. Bypasses the grace window — `basic.cancel` (queue deleted, policy expired, mirror promoted) is a permanent failure; `IConsumer.IsConnected` can remain `true` while deliveries have stopped, so this check runs first. +2. **Connected** — when `IConsumer.IsConnected` is `true`. Returns `Healthy("Consumer connection is open.")` and stamps the last-Healthy timestamp used by the recovery-grace path. +3. **Stopped or disposed** — when `IConsumer.IsStopped` is `true`. Returns `new HealthCheckResult(failureStatus, "Consumer connection is closed (stopped or disposed).")`. Also bypasses grace; an intentional shutdown has no reconnect to wait for. +4. **Within the recovery-grace window** — when the consumer has been observed Healthy at some prior point AND the time since that observation is less than `recoveryGraceWindow`, returns `Healthy("Consumer connection is closed, but within recovery grace (…).")`. This is the readiness-friendly path: a momentary broker disconnect (auto-recovery, network blip) does not crash-loop pods wired on liveness probes. + +If none of the above matches, the check returns `new HealthCheckResult(failureStatus, "Consumer connection is closed.")` where `failureStatus = context.Registration?.FailureStatus ?? HealthStatus.Unhealthy`. + +The recovery-grace window defaults to **30 seconds** when the single-argument constructor is used. Pass `TimeSpan.Zero` to the 3-arg constructor to disable grace. The `TimeProvider` parameter is injectable for tests. The grace state is keyed on the `IConsumer` instance via a `ConditionalWeakTable`, so per-probe re-allocations performed by `HealthCheckService` do not reset the last-Healthy timestamp. A never-Healthy probe always reports Unhealthy regardless of the grace window. + +`IConsumer.IsConnected` reflects the transport client's last-known view of the broker connection. When the broker drops, the client raises a shutdown event and the property flips to `false`; on reconnect, it flips back. There is a millisecond-scale gap between the underlying connection drop and the event being observed — a probe inside that window can still see `Healthy`. This is the same gap any in-process check has, regardless of implementation. + +### `ProducerConnectionHealthCheck` + +```csharp +public sealed class ProducerConnectionHealthCheck : IHealthCheck +{ + public ProducerConnectionHealthCheck(IProducer producer); + public Task CheckHealthAsync( + HealthCheckContext context, + CancellationToken cancellationToken = default); +} +``` + +Calls `IProducer.GetHealthSnapshot()` so `IsHealthy` and `HasAttemptedConnection` are read **atomically** — reading the two properties separately is racy because the producer's `IsHealthy` can flip false on a transient broker drop in the same instant `HasAttemptedConnection` is observed `true`, surfacing a false-negative Unhealthy. The snapshot returned by `GetHealthSnapshot()` captures the pair under the producer's internal lock and is evaluated as follows: + +- `snapshot.IsHealthy` → returns `Healthy("Producer connection is open.")`. +- `!snapshot.HasAttemptedConnection` → returns `Healthy("Producer has not yet attempted connection (lazy).")`. This is the state before any publish or send has been issued; treating it as unhealthy would crash-loop pods unnecessarily. +- Otherwise (`HasAttemptedConnection && !IsHealthy`) → returns the failure result with status `failureStatus` and `"Producer connection is closed."`. + +The check also calls `cancellationToken.ThrowIfCancellationRequested()` at entry, so probes cancelled by the health-check framework surface as `OperationCanceledException`. + +## Usage + +### Single-bus registration + +```csharp +using ServiceConnect.HealthChecks; + +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(opts => opts.Host = "rabbit"); +}); + +services.AddHealthChecks() + .AddServiceConnectBus(tags: ["live"]) + .AddServiceConnectConsumer(tags: ["ready"]) + .AddServiceConnectProducer(tags: ["ready"]); + +app.MapHealthChecks("/health/live", new HealthCheckOptions { Predicate = c => c.Tags.Contains("live") }); +app.MapHealthChecks("/health/ready", new HealthCheckOptions { Predicate = c => c.Tags.Contains("ready") }); +``` + +### Multi-bus registration + +When multiple named bus instances are registered in the same DI container, use the factory or keyed-services overloads to bind each check to its specific instance: + +```csharp +// Keyed-services approach — register two named buses +services.AddKeyedSingleton("orders", ordersFactory); +services.AddKeyedSingleton("notifications", notificationsFactory); + +services.AddHealthChecks() + .AddServiceConnectBus(name: "bus-orders", serviceKey: "orders", tags: ["live"]) + .AddServiceConnectBus(name: "bus-notifications", serviceKey: "notifications", tags: ["live"]); + +// Factory approach — resolve manually when keyed services aren't available +services.AddHealthChecks() + .AddServiceConnectProducer( + name: "producer-orders", + producerFactory: sp => sp.GetRequiredKeyedService("orders"), + tags: ["ready"]); +``` + +### Topology choices + +- **Consume-only** — drop `AddServiceConnectProducer`. +- **Publish-only** — drop both `AddServiceConnectConsumer` and `AddServiceConnectBus` (a host that never starts consuming would report `IsConsuming` permanently `false`). +- **Both** — call all three. + +### Custom checks + +The shipped check classes are `sealed`. If you need a different shape — a custom predicate over multiple bus state pieces, a different failure-status mapping, integration with a non-`Microsoft.Extensions.Diagnostics.HealthChecks` framework — implement `IHealthCheck` directly against `IBus`, `IConsumer`, or `IProducer`. The shipped classes are short enough to copy as a starting point. + +## See also + +- [Observability — Health checks](/ServiceConnect-CSharp/learn/operations/observability/#health-checks) — concept and wiring walk-through +- [Hosting](/ServiceConnect-CSharp/learn/operations/hosting/) — how the bus interacts with the .NET hosted-service lifecycle +- [`AddServiceConnect`](../bus/add-serviceconnect/) — registration entry point diff --git a/website/src/content/docs/reference/index.mdx b/website/src/content/docs/reference/index.mdx new file mode 100644 index 000000000..3009e4449 --- /dev/null +++ b/website/src/content/docs/reference/index.mdx @@ -0,0 +1,52 @@ +--- +title: API Reference +description: Reference documentation for the ServiceConnect public API — every type a consumer calls, implements, or configures. +--- + +import { CardGrid, LinkCard } from '@astrojs/starlight/components'; + +export const base = import.meta.env.BASE_URL.replace(/\/$/, ''); + +Reference documentation for the ServiceConnect public API. Every type a consumer calls, implements, or configures has a page here. + +Organised into two tiers: + +- **API Reference** — the primary consumer surface (this section). +- **[Extension Points](/ServiceConnect-CSharp/reference/extension-points/)** — pluggable internals you only touch when replacing a default. + +## Primary API + + + + + + + + + + +> Want to learn how to use ServiceConnect, not just look up a method? Start with [Getting Started](/ServiceConnect-CSharp/learn/getting-started/). diff --git a/website/src/content/docs/reference/messages/envelope.mdx b/website/src/content/docs/reference/messages/envelope.mdx new file mode 100644 index 000000000..ab3f4feca --- /dev/null +++ b/website/src/content/docs/reference/messages/envelope.mdx @@ -0,0 +1,97 @@ +--- +title: Envelope +description: The transport-level wrapper around a serialised message — body bytes plus headers. +--- + +import { Aside } from '@astrojs/starlight/components'; + +## Overview + +`Envelope` is the transport-level wrapper around a serialised message — a bag of headers plus the raw body bytes. Application code rarely constructs one directly; most contact happens indirectly through [`IConsumeContext`](../../handlers/iconsumecontext/) or while authoring a middleware that needs to inspect the untyped payload before it becomes a `Message`. + +See [Messages](/ServiceConnect-CSharp/learn/core-concepts/messages/) for where the envelope sits in the pipeline. + +## Reference + +### `Headers` + +```csharp +public IDictionary Headers { get; init; } = new Dictionary(StringComparer.Ordinal); +``` + +Gets the headers accumulated by the pipeline. + +**Returns.** A mutable dictionary of header name/value pairs. The reference is fixed by `init`, but filters may add or modify entries in place. + +**Remarks.** Header values are untyped because transports such as RabbitMQ expose bytes, strings, and numeric values through a single `object`-typed channel. Code that reads a header should defensively cast or decode. + +**Decoding header values.** RabbitMQ delivers header values as `byte[]`, `string`, or numeric primitives depending on how they were written. The static helper `ServiceConnect.Interfaces.Headers.HeaderDecoder.Decode(object? value)` normalises the variants to a `string?` (UTF-8 decoded where the underlying value is `byte[]`), which keeps consumer-side parsing terse: + +```csharp +if (envelope.Headers.TryGetValue("X-Dedupe-Key", out var raw) + && Guid.TryParse(HeaderDecoder.Decode(raw), out var key)) +{ + // ... +} +``` + +Use `HeaderDecoder.Decode` whenever you read a header that might cross the byte-array/string boundary. + + + +--- + +### `Body` + +```csharp +public ReadOnlyMemory Body { get; init; } = ReadOnlyMemory.Empty; +``` + +Gets the raw message body bytes as delivered by the transport. + +**Returns.** A `ReadOnlyMemory` over the serialised payload. Empty when no body was provided. + +**Remarks.** The body is always opaque at this layer — deserialisation into a concrete `Message` happens later in the pipeline. An empty body is legitimate for messages whose content lives entirely in headers. + +## Usage + +### Inspecting an envelope from middleware + +```csharp +public sealed class AuditLoggingMiddleware(ILogger logger) + : IMessageProcessingMiddleware +{ + public Task ProcessAsync( + ReadOnlyMemory messageBytes, + Type messageType, + object message, + IDictionary headers, + Envelope envelope, + MessageProcessingDelegate next, + CancellationToken cancellationToken) + { + logger.LogInformation( + "Received message: {HeaderCount} headers, {BodyLength} bytes", + envelope.Headers.Count, + envelope.Body.Length); + + if (envelope.Headers.TryGetValue("TypeName", out var headerType)) + { + logger.LogDebug("TypeName header: {TypeName}", headerType); + } + + return next(messageBytes, messageType, message, headers, envelope, cancellationToken); + } +} +``` + +An audit middleware reads the header bag and the body length directly from the envelope without deserialising. Running at this layer lets the middleware observe every message regardless of its concrete type, and keeps the body as a `ReadOnlyMemory` slice (no allocation) until something further down the pipeline actually needs to decode it. Pass the same tuple forward to `next` so downstream middleware sees the envelope unchanged. + +## See also + +- [Messages](/ServiceConnect-CSharp/learn/core-concepts/messages/) — concept +- [`Message`](../message/) — related reference page +- [`IConsumeContext`](../../handlers/iconsumecontext/) — related reference page +- [`IMessageProcessingMiddleware`](../../filters/imessageprocessingmiddleware/) — related reference page diff --git a/website/src/content/docs/reference/messages/message.mdx b/website/src/content/docs/reference/messages/message.mdx new file mode 100644 index 000000000..279ea4f8a --- /dev/null +++ b/website/src/content/docs/reference/messages/message.mdx @@ -0,0 +1,76 @@ +--- +title: Message +description: The base class every ServiceConnect message inherits — carries the correlation id that ties a conversation together. +--- + +import { Aside } from '@astrojs/starlight/components'; + +## Overview + +`Message` is the base class every ServiceConnect message inherits from. It carries a single piece of state — the correlation id used to relate messages across a conversation: a request and its reply, a command and the events it produces, and every message emitted by one process-manager instance. You reach for it whenever you define a new message contract. + +See [Messages](/ServiceConnect-CSharp/learn/core-concepts/messages/) for the conceptual tour. + +## Reference + +### `Message(Guid correlationId)` + +```csharp +public class Message(Guid correlationId) +``` + +Primary constructor. Every derived message type passes a correlation id up to this base constructor; derived types typically expose their own primary constructor that forwards it. + +**Parameters** +- `correlationId` — the correlation id to attach to the message. Pass a fresh `Guid.NewGuid()` when starting a new conversation, or forward the id of an inbound message when continuing one. + +**Remarks.** The constructor is the primary way to supply the correlation id. The property also has an `init` accessor so deserialisers and object-initializer expressions can populate it — see remarks under `CorrelationId` below. + +--- + +### `CorrelationId` + +```csharp +public Guid CorrelationId { get; init; } +``` + +Gets the correlation id used to relate this message to a broader conversation. + +**Remarks.** The `init` accessor allows object-initializer syntax and deserialisers to populate the property, but prevents post-construction reassignment in ordinary code. Pass the id through the primary constructor in production code; the `init` accessor is there for deserialisers and test helpers that construct messages via object initializers rather than constructors. + +## Usage + +### Defining a message type + +```csharp +public sealed record OrderPlaced(Guid correlationId, Guid OrderId, decimal Total) + : Message(correlationId); +``` + +A message type inherits `Message` and forwards a correlation id through its own primary constructor. Using `sealed record` gives value equality and a compact declaration; the correlation id flows into the base class verbatim. + +### Propagating correlation id from an inbound message + +```csharp +public sealed class PlaceOrderHandler : IMessageHandler +{ + public async Task HandleAsync(PlaceOrder message, IConsumeContext context, CancellationToken cancellationToken = default) + { + // ... persist the order ... + + await context.Bus.PublishAsync(new OrderPlaced( + correlationId: message.CorrelationId, + OrderId: message.OrderId, + Total: message.Total)); + } +} +``` + +When a handler emits a follow-up event, it forwards the inbound message's correlation id into the new message so downstream subscribers and log aggregators can stitch the full conversation together. Generating a fresh id here would break the trace. `context` is passed directly to `HandleAsync` — reach for it when you need the bus, the reply helper, or other per-message metadata. + +## See also + +- [Messages](/ServiceConnect-CSharp/learn/core-concepts/messages/) — concept +- [`Envelope`](../envelope/) — related reference page +- [`Message options`](../options/) — related reference page +- [`IConsumeContext`](../../handlers/iconsumecontext/) — related reference page diff --git a/website/src/content/docs/reference/messages/options.mdx b/website/src/content/docs/reference/messages/options.mdx new file mode 100644 index 000000000..93808a52d --- /dev/null +++ b/website/src/content/docs/reference/messages/options.mdx @@ -0,0 +1,207 @@ +--- +title: Message options +description: Per-call overrides for publish, send, and request operations — headers, destinations, timeouts. +--- + +import { Aside } from '@astrojs/starlight/components'; + +## Overview + +`PublishOptions`, `SendOptions`, and `RequestOptions` are the per-call override bags passed to `IBus.PublishAsync`, `IBus.SendAsync`, and `IBus.SendRequestAsync` (and its multi variants) respectively. Each is optional — when omitted, defaults come from `IBusConfiguration`. You reach for these types when a single call needs to deviate from the configured defaults: adding headers, overriding the destination endpoint, or tightening a request timeout. + +See [Configuration](/ServiceConnect-CSharp/learn/operations/configuration/) for where the baseline defaults are set. + +## Reference + +## `PublishOptions` + +Passed to `IBus.PublishAsync`. A `readonly record struct` — construct with object-initialiser syntax; values cannot be reassigned after construction. Like `SendOptions`, it is immutable, so concurrent `PublishAsync` callers cannot share a mutable instance and clobber each other's headers between construction and the async pipeline's read. + +### `Headers` + +```csharp +public IReadOnlyDictionary? Headers { get; init; } +``` + +Gets additional headers to attach to the published message. + +**Remarks.** Default is `null`. Keys and values are both strings; transports serialise them verbatim. The read-only interface type prevents the framework from iterating a dictionary another thread might be mutating — pass any `Dictionary` or `ImmutableDictionary` and the caller's own reference retains its concrete type. + +--- + +### `RoutingKey` + +```csharp +public string? RoutingKey { get; init; } +``` + +Gets the routing key used by the transport, when applicable. + +**Remarks.** Default is `null`. Only transports that support routing keys (e.g., RabbitMQ topic exchanges) consult this value; others ignore it. + +## `SendOptions` + +Passed to `IBus.SendAsync`. A `readonly record struct` — construct with object-initialiser syntax; values cannot be reassigned after construction. + +### `Headers` + +```csharp +public IReadOnlyDictionary? Headers { get; init; } +``` + +Gets the additional headers to attach to the message. + +**Remarks.** Default is `null`. See the `PublishOptions.Headers` note above for why the read-only interface is used. + +--- + +### `EndPoint` + +```csharp +public string? EndPoint { get; init; } +``` + +Gets the single destination endpoint. + +**Remarks.** Default is `null`. When set, overrides the queue mapping configured for the message type. To send to multiple endpoints, use `IBus.SendToManyAsync` with the explicit `endPoints` parameter (the `SendOptions.EndPoint` field is ignored by `SendToManyAsync` — the explicit list always wins). + +## `RequestOptions` + +Passed to `IBus.SendRequestAsync` and `IBus.SendRequestMultiAsync`. A `readonly record struct` — construct with object-initialiser syntax; values cannot be reassigned after construction. The struct shape matches `PublishOptions` and `SendOptions` so concurrent request callers cannot share a mutable instance and clobber each other's headers, endpoints, or timeout between construction and the async pipeline's read. + +### `DefaultTimeoutMs` + +```csharp +public static readonly int DefaultTimeoutMs = 10_000; +``` + +The default request timeout, in milliseconds (10 seconds). Declared `static readonly` rather than `const` so a future tuning of the default doesn't require every consumer to recompile to pick up the change — `const` values are inlined into the consumer's binary at compile time and frozen, whereas `static readonly` is resolved at runtime. + +--- + +### `Default` + +```csharp +public static RequestOptions Default => new(); +``` + +Gets a `RequestOptions` value populated with default values — equivalent to `new RequestOptions()`. + +**Returns.** A struct value per access. Handy when you want to pass defaults explicitly rather than letting the bus apply its own. + +--- + +### `Headers` + +```csharp +public IReadOnlyDictionary? Headers { get; init; } +``` + +Gets additional headers to attach to the request message. + +**Remarks.** Default is `null`. See the `PublishOptions.Headers` note above for why the read-only interface is used. + +--- + +### `EndPoint` + +```csharp +public string? EndPoint { get; init; } +``` + +Gets the single destination endpoint for the request. + +**Remarks.** Default is `null`. Overrides the configured queue mapping for the request message type. `PublishRequestAsync` requires `EndPoint` to be `null` or empty (it's a fanout-only operation); a non-empty value throws `ArgumentException`. + +--- + +### `Timeout` + +```csharp +public int Timeout { get; init; } +``` + +Gets the request timeout, in milliseconds. + +**Remarks.** Defaults to `DefaultTimeoutMs` (10,000) — the parameterless constructor seeds the field, so a `new RequestOptions()` value already carries the default. For single-reply requests, the call faults if no reply arrives before the deadline. For multi-requests, see `ExpectedReplyCount` for how timeout and count interact. + + + +--- + +### `ExpectedReplyCount` + +```csharp +public int? ExpectedReplyCount { get; init; } +``` + +Number of replies the multi-request should wait for before completing. Only consulted by `SendRequestMultiAsync`. + + + +## `ReplyOptions` + +Passed to `IConsumeContext.ReplyAsync` inside a handler. A `readonly record struct` — construct with object-initialiser syntax; values cannot be reassigned after construction. Carries only `Headers`: a reply does not need an endpoint (the destination is the request's reply-to header), does not need a routing key (replies don't fan out), and does not need a correlation id (auto-correlated via the request's `MessageId`). + +### `Headers` + +```csharp +public IReadOnlyDictionary? Headers { get; init; } +``` + +Gets the additional headers to attach to the reply message. + +**Remarks.** Default is `null`. The read-only interface type prevents the framework from iterating a dictionary another thread might be mutating — pass any `Dictionary` or `ImmutableDictionary` and the caller's own reference retains its concrete type. Header keys carrying the reserved framework names (`MessageId`, `MessageType`, `TypeName`, `FullTypeName`, `DestinationAddress`) are overwritten with framework-stamped values; pick an application-specific key when stamping metadata. + +## Usage + +### Publishing with custom headers + +```csharp +await bus.PublishAsync( + new OrderPlaced(Guid.NewGuid(), orderId, total), + new PublishOptions + { + Headers = new Dictionary + { + ["X-Tenant"] = tenantId, + ["X-Source"] = "OrderService", + }, + }); +``` + +Use `PublishOptions.Headers` when a downstream subscriber or audit consumer needs metadata that doesn't belong on the message contract itself — for example, a tenant discriminator or the name of the originating service. + +### Sending to an explicit endpoint override + +```csharp +await bus.SendAsync( + new ProcessPayment(correlationId, orderId, total), + new SendOptions { EndPoint = "payments-priority" }); +``` + +Pass `SendOptions.EndPoint` when the usual queue mapping isn't what you want — for example, routing a high-priority payment to a dedicated queue rather than the default `PaymentProcessor` queue. + +### Setting a request timeout + +```csharp +var reply = await bus.SendRequestAsync( + new GetShippingQuote(correlationId, orderId), + new RequestOptions { Timeout = 2_000 }); +``` + +Use `RequestOptions.Timeout` to tighten the deadline for a single call — here, a shipping-quote lookup that must return in 2 seconds or be considered failed, rather than inheriting the default 10-second window. + +## See also + +- [Configuration](/ServiceConnect-CSharp/learn/operations/configuration/) — concept +- [`IBus`](../../bus/ibus/) — related reference page diff --git a/website/src/content/docs/reference/process-managers/aggregator.mdx b/website/src/content/docs/reference/process-managers/aggregator.mdx new file mode 100644 index 000000000..fca681e95 --- /dev/null +++ b/website/src/content/docs/reference/process-managers/aggregator.mdx @@ -0,0 +1,168 @@ +--- +title: Aggregator +description: Buffer related messages and release them as a batch when a size or time condition fires — the receiver-side fan-in pattern. +--- + +import { Aside } from '@astrojs/starlight/components'; + +## Overview + +`Aggregator` is the base class for a consumer that buffers messages of a single type and processes them as a batch once a flush condition (size, time, or both) is met. `AggregatorSnapshot` is the record the persistence layer returns when it materialises the buffered records back into messages plus a count of records it could not deserialise. Reach for an aggregator when the natural unit of work is the batch — telemetry rollups, periodic reconciliations, the [Scatter-Gather](/ServiceConnect-CSharp/learn/messaging-patterns/scatter-gather/) fan-in — rather than the individual message. + +See [Aggregator](/ServiceConnect-CSharp/learn/messaging-patterns/aggregator/) for the conceptual tour. + + + +## Aggregator\ + +```csharp +public abstract class Aggregator where T : Message +``` + +`Aggregator` is an abstract class: the framework resolves one per dispatch, invokes the configured flush triggers, and calls `ExecuteAsync` with the buffered batch. + +### `Timeout` + +```csharp +public abstract TimeSpan Timeout() +``` + +Gets the maximum amount of time to wait before dispatching the current batch. + +**Returns.** A strictly positive `TimeSpan`. `TimeSpan.Zero` and `Timeout.InfiniteTimeSpan` are rejected by the registry at startup — every aggregator must declare a finite time-based flush path so buffered messages always have a route to dispatch. + +--- + +### `BatchSize` + +```csharp +public abstract int BatchSize() +``` + +Gets the maximum number of messages to buffer before dispatching the batch. + +**Returns.** A strictly positive integer. Zero and negative values are rejected by the registry at startup. + + + +--- + +### `ExecuteAsync` + +```csharp +public abstract Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default) +``` + +Processes a completed batch. The framework calls this on a background flush after materialising the buffered records through the configured `IAggregatorPersistor`; throwing from `ExecuteAsync` leaves the batch in the persistor so the next flush retries it. + +**Parameters** +- `messages` — the messages collected for the batch, in the order the persistor returned them. Sort inside `ExecuteAsync` if intra-batch ordering matters. +- `cancellationToken` — token to observe for cancellation; flows through from the dispatcher. + +**Remarks.** `ExecuteAsync` is async-first — it runs on a background flush timer and returns a batch outcome, not a handler result. The `CancellationToken` flows through so long-running I/O can be cancelled cleanly; await async work directly rather than reaching for sync-over-async bridges. + +## IAggregatorSnapshot + +```csharp +public interface IAggregatorSnapshot +{ + IReadOnlyList ResolvedMessages { get; } + IReadOnlyList ResolvedIds { get; } + int UnresolvedCount { get; } +} +``` + +The contract returned by `IAggregatorPersistor.GetSnapshotAsync` — implement it on your own snapshot type if a custom persistor needs to surface fields the built-in record does not carry (for example, a per-record timestamp). Most persistors return the framework-supplied `AggregatorSnapshot` record below. + +## AggregatorSnapshot + +```csharp +public sealed record AggregatorSnapshot( + IReadOnlyList ResolvedMessages, + IReadOnlyList ResolvedIds, + int UnresolvedCount) : IAggregatorSnapshot +``` + +The default `IAggregatorSnapshot` implementation. A point-in-time capture of aggregator messages returned by the configured `IAggregatorPersistor`. Carries the deserialised messages, the ids of the underlying storage records, and the count of records that could not be resolved — typically because the CLR type the record was serialised against has been renamed or removed. + +### `ResolvedMessages` + +```csharp +IReadOnlyList ResolvedMessages { get; init; } +``` + +Gets the deserialised messages recovered from the persistor. Typed as `IReadOnlyList` because every aggregated record carries a correlation id; the framework casts to `T` (where `T : Message` and `Message` implements `IHasCorrelationId`) before calling `Aggregator.ExecuteAsync`. + +--- + +### `ResolvedIds` + +```csharp +IReadOnlyList ResolvedIds { get; init; } +``` + +Gets the storage-record ids for the resolved messages. The persistor uses these ids to remove the flushed records after a successful `ExecuteAsync`. + +--- + +### `UnresolvedCount` + +```csharp +int UnresolvedCount { get; init; } +``` + +Gets the number of storage records that could not be resolved to a CLR type. A non-zero value usually indicates a message contract rename since the records were written; the unresolved rows remain in storage and do not participate in the flush. + +--- + +### `Empty` + +```csharp +public static AggregatorSnapshot Empty { get; } = new([], [], 0); +``` + +Gets an empty snapshot with no resolved or unresolved records. Persistor implementations return `Empty` instead of allocating a fresh empty instance per call. + +## Usage + +### Collecting carrier quotes before acting on them + +```csharp +public sealed class QuoteAggregator : Aggregator +{ + private readonly IBus _bus; + + public QuoteAggregator(IBus bus) => _bus = bus; + + public override int BatchSize() => 25; + + public override TimeSpan Timeout() => TimeSpan.FromSeconds(30); + + public override async Task ExecuteAsync(IReadOnlyList messages, CancellationToken cancellationToken = default) + { + if (messages.Count == 0) return; + + var correlationId = messages[0].CorrelationId; + var cheapest = messages.OrderBy(q => q.Price).First(); + + await _bus.PublishAsync(new ShippingQuotesReceived(correlationId) + { + CarrierCount = messages.Count, + SelectedCarrier = cheapest.Carrier, + SelectedPrice = cheapest.Price, + }); + } +} +``` + +`QuoteAggregator` flushes either once 25 quotes have arrived or every 30 seconds — whichever happens first. `ExecuteAsync` publishes the fan-in event `ShippingQuotesReceived` carrying the winning quote; the async publish is awaited directly, and the supplied `CancellationToken` flows through to cooperating work. If `PublishAsync` throws, the batch remains in the persistor and the next flush retries it. + +## See also + +- [Aggregator](/ServiceConnect-CSharp/learn/messaging-patterns/aggregator/) — concept +- [Scatter-Gather](/ServiceConnect-CSharp/learn/messaging-patterns/scatter-gather/) — concept +- [`IAggregatorPersistor`](../../extension-points/persistence/iaggregatorpersistor/) — related reference diff --git a/website/src/content/docs/reference/process-managers/iprocesshandler.mdx b/website/src/content/docs/reference/process-managers/iprocesshandler.mdx new file mode 100644 index 000000000..e6f405b2d --- /dev/null +++ b/website/src/content/docs/reference/process-managers/iprocesshandler.mdx @@ -0,0 +1,99 @@ +--- +title: IProcessHandler +description: The contract for a single step of a process manager — correlates an incoming message to persisted saga state and mutates it in place. +--- + +import { Aside } from '@astrojs/starlight/components'; + +## Overview + +`IProcessHandler` is the contract you implement for each message type that drives a process manager (saga). The dispatch pipeline loads the correlated `TData` from the configured `IProcessManagerFinder`, invokes `HandleAsync` (passing the per-message context directly as a parameter), and persists any mutations to `data` when the method returns. Implement the interface once per `(TData, TMessage)` pair in your workflow — a single class commonly implements the interface several times, one per message it reacts to. + +See [Process Manager](/ServiceConnect-CSharp/learn/messaging-patterns/process-manager/) for the conceptual tour. + +## Reference + +The interface is generic over the persisted state type and the message type; both type parameters are constrained: + +```csharp +public interface IProcessHandler + where TData : class, IProcessManagerData, new() + where TMessage : Message +``` + +The `new()` constraint lets the framework construct a fresh state object the first time a correlation id is seen. + +### `HandleAsync` + +```csharp +Task HandleAsync(TMessage message, TData data, IConsumeContext context, CancellationToken cancellationToken = default); +``` + +Invoked once the framework has correlated `message` to the `data` record. The per-message context is passed directly so the handler is safe across concurrent dispatches. Mutations to `data` are persisted when the returned task completes successfully; returning a faulted task (or throwing) prevents persistence and propagates to the pipeline's retry and error-handling policy. + +**Parameters** +- `message` — the deserialised message; guaranteed non-null when invoked by the dispatcher. +- `data` — the persisted state record for this correlation id. The first message in a workflow receives a freshly-constructed, default-valued instance; subsequent messages receive the record as last written. +- `context` — the per-message consume context (bus handle, correlation id, reply helper); guaranteed non-null when invoked by the dispatcher. +- `cancellationToken` — sourced from the transport consume context; signals cooperative shutdown. Pass it through to downstream awaits so long-running steps unwind cleanly when the bus stops consuming. + +--- + +### `ConfigureMapper` + +```csharp +void ConfigureMapper(IProcessManagerPropertyMapper mapper) +{ + mapper.ConfigureMapping(d => d.CorrelationId, m => m.CorrelationId); +} +``` + +Configures the correlation between `TMessage` and `TData`. The default implementation maps `CorrelationId` on both sides — override it when a message correlates on some other property (for example, an `OrderId` produced by a service that does not know the workflow id). + +**Parameters** +- `mapper` — the mapper the framework uses to register message-to-data correlation expressions for this handler. + + + + + +## Usage + +### Reacting to `OrderPlaced` in a shipping saga + +```csharp +public sealed class ShippingSaga : + IProcessHandler +{ + public async Task HandleAsync(OrderPlaced message, ShippingSagaData data, IConsumeContext context, CancellationToken cancellationToken = default) + { + if (data.Status != OrderStatus.Pending) + { + // Idempotent: a redelivery of OrderPlaced for a saga that has already + // advanced past acknowledgement is a no-op. + return; + } + + data.OrderId = message.OrderId; + data.Status = OrderStatus.Acknowledged; + + await context.Bus.PublishAsync(new ShipmentRequested(message.CorrelationId) + { + OrderId = message.OrderId, + }); + } +} +``` + +The handler mutates `data` in place — the framework writes the record back when `HandleAsync` returns — and publishes `ShipmentRequested` as the next step of the workflow. The state-flag check at the top of the method is the idempotency gate for at-least-once redelivery. `IBus` is reached through `context.Bus`; no constructor injection of `IBus` is needed. + +## See also + +- [Process Manager](/ServiceConnect-CSharp/learn/messaging-patterns/process-manager/) — concept +- [`IProcessManagerData`](../iprocessmanagerdata/) — related reference +- [`IProcessManagerPropertyMapper`](../iprocessmanagerpropertymapper/) — related reference +- [`IProcessManagerFinder`](../../extension-points/persistence/iprocessmanagerfinder/) — related reference diff --git a/website/src/content/docs/reference/process-managers/iprocessmanagerdata.mdx b/website/src/content/docs/reference/process-managers/iprocessmanagerdata.mdx new file mode 100644 index 000000000..ef4317572 --- /dev/null +++ b/website/src/content/docs/reference/process-managers/iprocessmanagerdata.mdx @@ -0,0 +1,61 @@ +--- +title: IProcessManagerData +description: The base contract for a process manager's persisted state — carries the correlation id the framework uses to load and save the record. +--- + +## Overview + +`IProcessManagerData` is the marker contract every process-manager (saga) state type implements. The framework persists the record through the configured `IProcessManagerFinder`, keyed by the `CorrelationId` property declared here. Implementors add whatever additional state their workflow needs — step flags, business identifiers, collected values — and the framework loads and saves the whole record around each `IProcessHandler.HandleAsync` call. + +See [Process Manager](/ServiceConnect-CSharp/learn/messaging-patterns/process-manager/) for the conceptual tour. + +## Reference + +```csharp +public interface IProcessManagerData +``` + +### `CorrelationId` + +```csharp +Guid CorrelationId { get; set; } +``` + +Gets or sets the correlation id that identifies the process instance. The framework uses this value to load the correct record when a message arrives — by default it matches the inbound message's `Message.CorrelationId`, and an `IProcessManagerPropertyMapper` override can redirect the match to a different message property. + +**Remarks.** The setter is required because the framework sets the correlation id on newly-created records before the first handler invocation persists them. + +## Usage + +### Shipping-saga state record + +```csharp +public sealed class ShippingSagaData : IProcessManagerData +{ + public Guid CorrelationId { get; set; } + + public Guid OrderId { get; set; } + + public OrderStatus Status { get; set; } = OrderStatus.Pending; + + public DateTimeOffset? AcknowledgedAt { get; set; } + + public DateTimeOffset? ShipmentDispatchedAt { get; set; } +} + +public enum OrderStatus +{ + Pending, + Acknowledged, + ShipmentDispatched, + Completed, +} +``` + +`ShippingSagaData` is a plain DTO: `CorrelationId` satisfies the contract, and the other properties carry whatever the saga needs to remember between messages. The framework writes the whole record through the configured persistence provider — there is no partial-update hook to implement. + +## See also + +- [Process Manager](/ServiceConnect-CSharp/learn/messaging-patterns/process-manager/) — concept +- [`IProcessHandler`](../iprocesshandler/) — related reference +- [`IProcessManagerFinder`](../../extension-points/persistence/iprocessmanagerfinder/) — related reference diff --git a/website/src/content/docs/reference/process-managers/iprocessmanagerpropertymapper.mdx b/website/src/content/docs/reference/process-managers/iprocessmanagerpropertymapper.mdx new file mode 100644 index 000000000..4973834a7 --- /dev/null +++ b/website/src/content/docs/reference/process-managers/iprocessmanagerpropertymapper.mdx @@ -0,0 +1,77 @@ +--- +title: IProcessManagerPropertyMapper +description: Declares how incoming message properties correlate to process-manager state properties — the expressions the finder uses to load the saga record. +--- + +## Overview + +`IProcessManagerPropertyMapper` is the surface the framework hands to an `IProcessHandler` so it can declare how inbound messages correlate to persisted saga state. Each `ConfigureMapping` call registers one mapping expression; the framework compiles the expressions and uses them when loading a record through `IProcessManagerFinder`. Reach for this type only when you are overriding `IProcessHandler.ConfigureMapper` — the default mapping (`CorrelationId` to `CorrelationId`) is usually right. + +See [Process Manager](/ServiceConnect-CSharp/learn/messaging-patterns/process-manager/) for the conceptual tour. + +## Reference + +```csharp +public interface IProcessManagerPropertyMapper +``` + +### `Mappings` + +```csharp +IReadOnlyList Mappings { get; } +``` + +Gets the mapping entries registered through `ConfigureMapping`. The framework enumerates this list when resolving a saga record for an inbound message; each entry carries the message type, the compiled message-property accessor, and the process-manager property path. + +--- + +### `ConfigureMapping` + +```csharp +void ConfigureMapping( + Expression> processManagerProperty, + Expression> messageExpression) + where TProcessManagerData : IProcessManagerData + where TMessage : Message; +``` + +Adds a mapping between a process-manager property and a message property. The framework records both expressions so the property-mapper instance becomes the declarative source of truth for "which property on `TMessage` locates the `TData` record." + +**Parameters** +- `processManagerProperty` — an expression selecting the state property to match against, for example `d => d.OrderId`. +- `messageExpression` — an expression selecting the message property to read, for example `m => m.OrderId`. + +**Remarks.** The expressions must be simple property accessors — the framework parses the expression tree to derive both the compiled accessor and the property name/hierarchy used by the persistence layer. Method calls and arithmetic are not supported. + +**Throws.** `InvalidOperationException` when a mapping for the same `TMessage` has already been registered. Each message type maps to at most one process-manager-data correlation, so duplicate registration is rejected loud rather than overwriting silently. + +## Usage + +### Correlating on an order number instead of the default correlation id + +```csharp +public sealed class ShippingSaga : + IProcessHandler +{ + public Task HandleAsync(OrderPlaced message, ShippingSagaData data, IConsumeContext context, CancellationToken cancellationToken = default) + { + data.OrderId = message.OrderId; + return Task.CompletedTask; + } + + void IProcessHandler.ConfigureMapper( + IProcessManagerPropertyMapper mapper) + { + mapper.ConfigureMapping( + d => d.OrderId, + m => m.OrderId); + } +} +``` + +Override `ConfigureMapper` as an explicit interface implementation on the handler class and call `ConfigureMapping` once per `(TData, TMessage)` pair you want to correlate. The framework will look up the `ShippingSagaData` record by matching `OrderPlaced.OrderId` against `ShippingSagaData.OrderId` instead of the default `CorrelationId`-to-`CorrelationId` match. + +## See also + +- [Process Manager](/ServiceConnect-CSharp/learn/messaging-patterns/process-manager/) — concept +- [`IProcessHandler`](../iprocesshandler/) — related reference diff --git a/website/src/content/docs/reference/telemetry/index.mdx b/website/src/content/docs/reference/telemetry/index.mdx new file mode 100644 index 000000000..adf52d0c3 --- /dev/null +++ b/website/src/content/docs/reference/telemetry/index.mdx @@ -0,0 +1,375 @@ +--- +title: ServiceConnect.Telemetry +description: Distributed tracing for ServiceConnect — W3C traceparent propagation across the broker and a single OTel ActivitySource for publish, send, and consume spans. +--- + +import { Aside } from '@astrojs/starlight/components'; + +## Overview + +`ServiceConnect.Telemetry` is the optional package that emits OpenTelemetry-compatible activities for every publish, send, and consume on the bus. It is implemented as a pair of pipeline middleware (`TelemetrySendMiddleware`, `TelemetryProcessingMiddleware`) backed by a static `ServiceConnectActivitySource` that owns a single `ActivitySource` (name exposed via `ServiceConnectActivitySource.ActivitySourceName`). + +When registered, the package: + +1. Starts a producer activity around every `PublishAsync`/`SendAsync`/`SendRequestAsync` call. +2. Injects the W3C `traceparent` and `tracestate` headers into the outgoing envelope. +3. On the consume side, extracts the same headers and starts a consumer activity that is causally linked to the publishing span. + +The result is an end-to-end trace that crosses the broker. With OpenTelemetry exporters configured, you see the full request path in your APM backend. + +See [Observability](/ServiceConnect-CSharp/learn/operations/observability/) for the conceptual walk-through and the [`Telemetry` example](https://github.com/R-Suite/ServiceConnect-CSharp/tree/master/examples/Telemetry) for a runnable end-to-end demo. + +## Installation + +```bash +dotnet add package ServiceConnect.Telemetry +``` + +Then call `builder.AddTelemetry()` inside the `AddServiceConnect` callback (see [Registration](#registration) below). + +## TelemetryBuilderExtensions + +### `AddTelemetry` + +```csharp +public static ServiceConnectBuilder AddTelemetry( + this ServiceConnectBuilder builder, + Action? configure = null); +``` + +Registers `TelemetrySendMiddleware` and `TelemetryProcessingMiddleware` as the outermost middleware on the send and processing pipelines, and registers both `ServiceConnectInstrumentationOptions` and `IMessagingSystemAttributes` (via `TryAddSingleton`) into the DI container. + +**Parameters** +- `builder` — the `ServiceConnectBuilder` from inside `AddServiceConnect`. +- `configure` — optional callback to mutate the `ServiceConnectInstrumentationOptions` (enrichment hooks, per-direction enable flags, tag length bounds, PII sanitiser). Omit to use defaults. + +**Returns.** The same `builder`, for chaining. + +**Remarks.** `AddTelemetry` inserts the middleware at index 0 so it wraps every other middleware on the pipeline — the activity is opened before any application middleware runs and closed after they unwind, capturing the full pipeline duration. Call once per `AddServiceConnect`. + +`IMessagingSystemAttributes` is registered via `TryAddSingleton`. To substitute a custom implementation (for example, to change the `messaging.system` tag for a non-RabbitMQ transport), register your own `IMessagingSystemAttributes` in DI **before** calling `AddTelemetry` — the `Try` registration will leave yours in place. + +Two `AddTelemetry` calls in the same process (for example, two independently-scoped `AddServiceConnect` registrations) produce two distinct `ServiceConnectInstrumentationOptions` instances. Options are not shared across bus registrations; enrichment delegates and enable-flags are independent. + +The configured `ServiceConnectInstrumentationOptions` is frozen at the end of the `configure` callback passed to `AddTelemetry`. Any setter mutation on the options object after that point throws `InvalidOperationException`. + +## TelemetryTracerExtensions + +### `AddServiceConnectInstrumentation` + +```csharp +public static TracerProviderBuilder AddServiceConnectInstrumentation( + this TracerProviderBuilder builder); +``` + +Subscribes the OpenTelemetry tracer provider to the activity source emitted by `ServiceConnectActivitySource`. Equivalent to `builder.AddSource(ServiceConnectActivitySource.ActivitySourceName)`, but keeps the source name in one place so a rename cannot silently disable a caller's telemetry. + +**Parameters** +- `builder` — the `TracerProviderBuilder` from `Sdk.CreateTracerProviderBuilder()` or `services.AddOpenTelemetry().WithTracing(...)`. + +**Returns.** The same `builder`, for chaining. + +**Throws.** `ArgumentNullException` when `builder` is null. + +```csharp +services.AddOpenTelemetry().WithTracing(b => b + .AddServiceConnectInstrumentation() + .AddOtlpExporter()); +``` + +## TelemetryMeterExtensions + +### `AddServiceConnectInstrumentation` + +```csharp +public static MeterProviderBuilder AddServiceConnectInstrumentation( + this MeterProviderBuilder builder); +``` + +Subscribes the OpenTelemetry meter provider to ServiceConnect's `"ServiceConnect.Bus"` meter. Equivalent to `builder.AddMeter(ServiceConnectMeter.MeterName)`. + +**Parameters** +- `builder` — the `MeterProviderBuilder` from `Sdk.CreateMeterProviderBuilder()` or `services.AddOpenTelemetry().WithMetrics(...)`. + +**Returns.** The same `builder`, for chaining. + +**Throws.** `ArgumentNullException` when `builder` is null. + +```csharp +services.AddOpenTelemetry().WithMetrics(b => b + .AddServiceConnectInstrumentation()); +``` + +## ServiceConnectInstrumentationOptions + +```csharp +public sealed class ServiceConnectInstrumentationOptions +{ + public Action? EnrichWithMessage { get; set; } + public Action? EnrichWithMessageBytes { get; set; } + public bool EnablePublishTelemetry { get; set; } = true; + public bool EnableConsumeTelemetry { get; set; } = true; + public bool EnableSendTelemetry { get; set; } = true; + public int MaxTagValueLength { get; set; } = 256; + public Func? ExceptionMessageSanitiser { get; set; } +} +``` + +Mutable options consumed by `ServiceConnectActivitySource` when starting activities. Each setter is guarded by a `ThrowIfFrozen()` check: once `AddTelemetry`'s configure callback returns, the options instance is frozen and any subsequent setter call throws `InvalidOperationException`. Mutate the options inside the callback (the only window the framework guarantees is writable); after the bus is built, treat the instance as read-only. + +### `EnrichWithMessage` + +Optional callback invoked on every started publish, send, and consume activity that has a strongly-typed `Message`. Use this to attach domain-specific tags (order id, customer id) to the trace. + + + +### `EnrichWithMessageBytes` + +Optional callback invoked on the consume side when the activity is started before the message has been deserialised — receives the raw envelope bytes. Same security caveat as `EnrichWithMessage`. + +### `Enable{Publish,Send,Consume}Telemetry` + +Per-direction toggles. Setting any to `false` skips activity creation for that operation while still injecting the ambient W3C trace context into outgoing headers (so an upstream span — typically an ASP.NET Core request — propagates across the broker even when ServiceConnect's own spans are disabled). + +### `MaxTagValueLength` + +Maximum number of characters stored in any user-controlled string tag (destination, routing key, MessageId, conversation id). Defaults to `256`. Long values are silently truncated to this bound before they are attached to the activity, providing a hard cardinality ceiling on tag values that originate from message headers. + +Set to `int.MaxValue` to disable truncation entirely. + +### `ExceptionMessageSanitiser` + +Optional `Func?` called to produce the `exception.message` value written to the activity status description and the OTel `exception` event. Defaults to `null`, which means the raw `Exception.Message` is used unchanged. + +Supply a delegate when exception messages may contain PII that you do not want propagating to your observability backend: + +```csharp +builder.AddTelemetry(opts => +{ + opts.ExceptionMessageSanitiser = ex => + ex is ValidationException ve ? ve.SafeSummary : "[redacted]"; +}); +``` + +On .NET 9 and later, when `ExceptionMessageSanitiser` is set, `ServiceConnectActivitySource.SetError` opts out of `Activity.AddException` (which uses the CLR's built-in exception serialisation) and writes the `exception.*` event attributes manually using the sanitised string. On earlier runtimes the sanitised string is applied to the status description and the `exception.message` tag; other `exception.*` attributes still use the CLR path. + +## ServiceConnectActivitySource + +```csharp +public static class ServiceConnectActivitySource +{ + public static readonly string ActivitySourceName; // computed from assembly name, currently "ServiceConnect.Telemetry.Bus" + + public static Activity? Publish( + PublishEventArgs eventArgs, + ServiceConnectInstrumentationOptions options, + IMessagingSystemAttributes attributes, + ActivityContext parentContext = default); + + public static Activity? Consume( + ConsumeEventArgs eventArgs, + ServiceConnectInstrumentationOptions options, + IMessagingSystemAttributes attributes); + + public static Activity? Send( + SendEventArgs eventArgs, + ServiceConnectInstrumentationOptions options, + IMessagingSystemAttributes attributes, + ActivityContext parentContext = default); + + public static void SetError( + Activity? activity, + Exception exception, + ServiceConnectInstrumentationOptions options); + + public static bool TryGetExistingContext( + IDictionary headers, + out ActivityContext context); +} +``` + +Static façade that owns the `ActivitySource`. The middleware calls `Publish`, `Send`, and `Consume`; the constant and helpers are public so downstream code (handler-level instrumentation, custom transports) can hook into the same trace tree. + +All methods that previously read from static `Options` and `MessagingSystemAttributes` properties now accept those as explicit parameters. This removes ambient global state and allows multiple independently-configured buses in the same process to each drive the façade with their own options and attributes. + +### Activity-source name + +All activities — publish, send, and consume — are emitted from a single source whose name is exposed as `ServiceConnectActivitySource.ActivitySourceName`. Register it once with the OTel SDK using the dedicated extension: + +```csharp +services.AddOpenTelemetry().WithTracing(b => b + .AddServiceConnectInstrumentation() + .AddOtlpExporter()); +// Equivalent: .AddSource(ServiceConnectActivitySource.ActivitySourceName) +// Do not hard-code the literal "ServiceConnect.Telemetry.Bus" — use the extension +// or the constant so a rename cannot silently disable telemetry. +``` + +Per-direction sampling is controlled through `EnablePublishTelemetry`, `EnableConsumeTelemetry`, and `EnableSendTelemetry` in `ServiceConnectInstrumentationOptions` rather than through separate source registrations. + +### Listening without the OTel SDK + +When you do not want to take a dependency on `OpenTelemetry.Extensions.Hosting`, you can observe ServiceConnect activities directly using the BCL `ActivityListener`. This is the appropriate approach for ad-hoc investigation, console tooling, or smoke tests: + +```csharp +using var listener = new ActivityListener +{ + ShouldListenTo = src => src.Name == ServiceConnectActivitySource.ActivitySourceName, + Sample = (ref ActivityCreationOptions _) => ActivitySamplingResult.AllData, + ActivityStarted = a => { /* ... */ }, + ActivityStopped = a => { /* ... */ }, +}; +ActivitySource.AddActivityListener(listener); +``` + +The `AddServiceConnectInstrumentation()` OTel SDK path (shown in [Registration](#registration) above) remains the production path for exporting to OTLP backends. For a worked example of the BCL listener approach see `examples/Telemetry/.../Publisher/TelemetryConsoleListener.cs`. + +### `SetError` + +Marks an activity as errored using OTel semantic conventions (`Status = Error`, an `exception` event with `exception.{type,message,stacktrace}` attributes). No-op when the activity is null. Pass the same `ServiceConnectInstrumentationOptions` instance used for the activity; the method honours `ExceptionMessageSanitiser` when writing the `exception.message` attribute. Not wired into the bus host paths — exposed for handlers and custom middleware that want to record their own failures inside an existing ServiceConnect activity. + +### `TryGetExistingContext` + +Parses a W3C `traceparent` (and optional `tracestate`) out of a header dictionary. Useful when bridging into a non-pipeline activity (for example, a long-running batch job that should resume the trace started on the publish side). + +## IMessagingSystemAttributes + +```csharp +public interface IMessagingSystemAttributes +{ + string MessagingSystem { get; } + string ProtocolName { get; } + string ServerAddress => string.Empty; + int ServerPort => 0; +} +``` + +Supplies the OTel-semantic-convention `messaging.system` and `network.protocol.name` tag values stamped on every emitted activity. `ServerAddress` and `ServerPort` are default-interface-method members with the indicated defaults — most providers override them to surface broker connection metadata. The default implementation (`RabbitMqMessagingSystemAttributes`) returns `rabbitmq` and `amqp`. + +To override for a different transport, register your own `IMessagingSystemAttributes` implementation in DI **before** `AddTelemetry`: + +```csharp +services.AddSingleton(); +services.AddServiceConnect(builder => +{ + builder.AddTelemetry(); + // AddTelemetry uses TryAddSingleton; MyTransportAttributes wins. +}); +``` + +## MessagingAttributes — span attribute keys + +`MessagingAttributes` exposes the OTel semconv 1.x attribute name constants ServiceConnect stamps on every span. Reference these from your enrichment delegates and span-filter rules rather than hard-coding the strings. + +| Constant | Wire name | Description | +|---|---|---| +| `MessageId` | `messaging.message.id` | Logical message identifier. High cardinality — span-only; must not be used as a metric tag. | +| `MessageConversationId` | `messaging.message.conversation_id` | Conversation or correlation identifier. High cardinality — span-only; must not be used as a metric tag. | +| `MessagingOperationType` | `messaging.operation.type` | OTel-defined operation type: `publish` for sends/publishes, `process` for consumer-side handler dispatch. | +| `MessagingOperationName` | `messaging.operation.name` | Implementation-specific operation name (e.g. `publish`, `send`, `request`, `process`). | +| `MessagingSystem` | `messaging.system` | Messaging system identifier supplied via `IMessagingSystemAttributes` (`"rabbitmq"` by default). | +| `MessagingDestination` | `messaging.destination.name` | Queue or exchange name for the operation. Empty/absent when anonymous. | +| `MessagingDestinationAnonymous` | `messaging.destination.anonymous` | Boolean — set to `true` when the operation has no resolvable destination. | +| `MessagingDestinationRoutingKey` | `messaging.rabbitmq.destination.routing_key` | RabbitMQ routing key for publishes that target a topic exchange. | +| `MessagingBodySize` | `messaging.message.body.size` | Serialised payload size in bytes. | +| `ProtocolName` | `network.protocol.name` | Network protocol name used by the messaging system. | +| `ServerAddress` | `server.address` | Broker host name or IP address. Emitted only when the value is non-empty. | +| `ServerPort` | `server.port` | Broker TCP port. Emitted only when the value is greater than zero. | + +The pre-1.x `messaging.operation` attribute is intentionally NOT emitted; ServiceConnect emits the `operation.type` + `operation.name` split prescribed by semconv 1.x. Dashboards that filtered on the older attribute should switch to `messaging.operation.type`. + +## Metrics + +`ServiceConnect.Telemetry`'s `AddServiceConnectInstrumentation()` extension wires the meter named `"ServiceConnect.Bus"`. The meter publishes 11 instruments — four OTel-standard messaging metrics plus seven ServiceConnect-specific extensions (`messaging.serviceconnect.*`). See [Observability — Metrics](/ServiceConnect-CSharp/learn/operations/observability/#metrics) for the full catalogue with tag schemas, unit details, and cardinality guidance. + +The instrument-name constants live in `ServiceConnect.Diagnostics.MetricNames` (in the `ServiceConnect` package — not the telemetry package). Reference them rather than hard-coding strings: + +```csharp +using ServiceConnect.Diagnostics; + +var meterListener = new MeterListener(); +meterListener.InstrumentPublished = (instrument, listener) => +{ + if (instrument.Meter.Name == ServiceConnectMeter.MeterName && + instrument.Name == MetricNames.PublishDuration) + { + listener.EnableMeasurementEvents(instrument); + } +}; +``` + +## Usage + +### Registration + +```csharp +services.AddServiceConnect(builder => +{ + builder.UseRabbitMQ(t => t.Host = "localhost"); + builder.ConfigureQueues(q => q.QueueName = "shipping-service"); + + builder.AddTelemetry(opts => + { + opts.EnrichWithMessage = (activity, message) => + { + // Attach correlation id only — do not export raw payload fields. + activity.SetTag("messaging.serviceconnect.correlation_id", message.CorrelationId); + }; + }); +}); + +services.AddOpenTelemetry().WithTracing(b => b + .AddServiceConnectInstrumentation() + .AddOtlpExporter()); +``` + +`AddTelemetry` inserts the telemetry middleware at the head of both pipelines so its activities bracket every other middleware. The OTel SDK is configured to listen for the single ServiceConnect source via `AddServiceConnectInstrumentation`; without that call activities are created but never sampled. The enrichment hook adds a single high-signal tag and deliberately avoids the message body. + +### Disabling a single direction + +```csharp +builder.AddTelemetry(opts => +{ + // Keep publish/consume tracing on; drop send-side spans for a chatty + // command worker that emits hundreds of point-to-point sends per second. + opts.EnableSendTelemetry = false; +}); +``` + +W3C context still propagates on the disabled side, so an enclosing ASP.NET Core request span continues to thread through the broker even when ServiceConnect itself does not emit a span. + +### Capping tag value length + +```csharp +builder.AddTelemetry(opts => +{ + // Allow up to 512 characters on tag values (default is 256). + opts.MaxTagValueLength = 512; +}); +``` + +Set to `int.MaxValue` to disable truncation entirely. The default of 256 prevents runaway cardinality from long destination names or message ids under high-cardinality routing topologies. + +### PII redaction in exception messages + +```csharp +builder.AddTelemetry(opts => +{ + opts.ExceptionMessageSanitiser = ex => ex switch + { + ValidationException ve => ve.PublicMessage, + _ => ex.GetType().Name + }; +}); +``` + +Without a sanitiser, `Exception.Message` is written verbatim to `exception.message` tags and the activity status description. If your handlers throw exceptions whose messages embed user data (email addresses, account numbers), supply a sanitiser before those strings leave the process boundary to your tracing backend. + +## See also + +- [Observability](/ServiceConnect-CSharp/learn/operations/observability/) — concept +- [`AddServiceConnect`](../bus/add-serviceconnect/) — registration entry point +- [`ISendMessageMiddleware`](../filters/isendmessagemiddleware/) — the middleware contract `TelemetrySendMiddleware` implements +- [`IMessageProcessingMiddleware`](../filters/imessageprocessingmiddleware/) — the middleware contract `TelemetryProcessingMiddleware` implements diff --git a/website/src/content/docs/releases.mdx b/website/src/content/docs/releases.mdx new file mode 100644 index 000000000..8ecf0f0b3 --- /dev/null +++ b/website/src/content/docs/releases.mdx @@ -0,0 +1,167 @@ +--- +title: Releases +description: Where to find released versions, published packages, and the project changelog. +--- + +ServiceConnect is versioned per-package. Each package ships independently on NuGet; GitHub Releases mark the tagged commits those packages were built from. If you want to know "what changed between v5 and v6 of `ServiceConnect.Interfaces`", you're in the right place. + +## Where releases live + +- **GitHub Releases** — [github.com/R-Suite/ServiceConnect-CSharp/releases](https://github.com/R-Suite/ServiceConnect-CSharp/releases). Each entry lists the tag, the commit, and a summary of the changes in that cut. +- **NuGet packages** — published under the `ServiceConnect.*` prefix. The core packages are: + - [`ServiceConnect`](https://www.nuget.org/packages/ServiceConnect) — the bus, hosted service, and dispatch machinery. + - [`ServiceConnect.Interfaces`](https://www.nuget.org/packages/ServiceConnect.Interfaces) — the public API surface (`IBus`, configuration, handlers). + - [`ServiceConnect.Client.RabbitMQ`](https://www.nuget.org/packages/ServiceConnect.Client.RabbitMQ) — the RabbitMQ transport. + - [`ServiceConnect.Persistence.MongoDb`](https://www.nuget.org/packages/ServiceConnect.Persistence.MongoDb) — MongoDB persistence for process managers and aggregators. + - [`ServiceConnect.Persistence.InMemory`](https://www.nuget.org/packages/ServiceConnect.Persistence.InMemory) — in-process persistence for tests and samples. + - [`ServiceConnect.Telemetry`](https://www.nuget.org/packages/ServiceConnect.Telemetry) — OpenTelemetry instrumentation hooks. + - [`ServiceConnect.HealthChecks`](https://www.nuget.org/packages/ServiceConnect.HealthChecks) — `IHealthCheck` integrations for `Microsoft.Extensions.Diagnostics.HealthChecks`. + +## Picking a version + +Match the major versions of the packages you reference. `ServiceConnect` 7.x expects `ServiceConnect.Interfaces` 7.x; the transport and persistence packages follow the same major line. Mixing majors is unsupported and will surface as binding redirects or missing-method exceptions. + +For new applications, take the latest stable of each package. For existing applications, read the release notes for any major version bumps — we call out breaking changes in the GitHub Release body. + +## v7 + +v7 is a clean-architecture rewrite. The legacy static `Bus` is gone; configuration is fluent and DI-wired; every public path is async with `CancellationToken`; the wire format is System.Text.Json; OpenTelemetry instrumentation is operator-grade; and the solution is consolidated to seven shipping packages. It is **not source- or binary-compatible with v6** — read this entry before upgrading. + +### What v7 ships + +- **Target frameworks:** `net8.0` and `net10.0` on every package. `net8.0` will be dropped in the first major after Microsoft's EoL (November 10, 2026). +- **Packages (all version 7.0.0):** `ServiceConnect`, `ServiceConnect.Interfaces`, `ServiceConnect.Client.RabbitMQ`, `ServiceConnect.Persistence.MongoDb`, `ServiceConnect.Persistence.InMemory`, `ServiceConnect.Telemetry`, and the new `ServiceConnect.HealthChecks`. +- **Dropped from the solution:** `ServiceConnect.Persistence.SqlServer`, `ServiceConnect.Persistence.Redis`, `ServiceConnect.Filters.MessageDeduplication`, and a long tail of internal/experimental projects (17 production projects collapsed to seven). +- **License:** MIT (relicensed from the prior more-restrictive license). +- **SourceLink + `.snupkg`** ship on every package; step-into works from any consumer. + +### Breaking changes + +#### Bus, configuration, and handlers + +- **Static `Bus` is gone.** Use `AddServiceConnect(...)` + the fluent `ServiceConnectBuilder` from DI. `IBus` is `IAsyncDisposable`; once stopped or disposed, the instance is latched — restart requires a new instance from DI. +- **Async-first everywhere.** `IBus`, `IProducer`, `IConsumer`, `IConsumeContext`, `IProcessManagerFinder`, `ITimeoutStore`, `IAggregatorPersistor`, middleware, and filters all return `Task`/`ValueTask` and take a `CancellationToken`. The sync-over-async paths in the RabbitMQ transport have been removed. +- **Handler signatures take the context as a parameter.** `IMessageHandler.HandleAsync(T message, IConsumeContext ctx, CancellationToken ct)` (and the equivalents on `IProcessHandler` / `IStreamHandler`) replace the previous settable `Context`/`Stream` properties, which were unsafe for singleton handlers. +- **Public surface tightened to extension contracts only.** `Bus`, `MessageDispatcher`, every concrete persistor, every concrete RabbitMQ class, every `*Configuration` type, and all hosted services are now `internal`. Public API is interfaces in `ServiceConnect.Interfaces` plus the builder/extension methods on the bus configuration root. +- **`ConfigurePipeline(Action)` is internal.** Use the typed builders: `AddOutgoingFilter`, `AddBeforeConsumingFilter`, `AddOnConsumedSuccessfullyFilter`, `AddAfterConsumingFilter`, `AddSendMessageMiddleware`, `AddMessageProcessingMiddleware`, plus outermost-position helpers. +- **Request fan-out is explicit.** `SendOptions.EndPoints` and `RequestOptions.EndPoints` are removed; use `bus.SendToManyAsync(msg, ["a","b"])` for fan-out and `PublishRequestAsync` for broadcast request. `SendRequestMultiAsync` with a positive `ExpectedReplyCount` now throws `RequestTimeoutException` (with `PartialReplies`) instead of silently returning under-delivery. +- **`PublishOptions` is a `readonly record struct`; `RequestOptions` requires `RequestOptions.Default`.** Mutable-shared-instance races are closed; `default(RequestOptions)` is rejected so the parameterless ctor's defaults always apply. +- **Read-only collections on the wire.** `TimeoutData.Headers`, `ConsumeEventArgs.Headers`, `TimeoutsBatch.DueTimeouts`, `IBus.RouteAsync` destinations, `IConsumer.StartConsumingAsync` message-type lists, and `IMessageDispatcher.DispatchAsync` headers are now `IReadOnly*`. Mutating middleware constructs a new instance. +- **`IConsumeContext.ReplyAsync` uses `ReplyOptions`** in place of `(message, headers, ct)`. `IBusConfiguration.ExceptionHandler` is `Func?` (was `Action?`). +- **`IRegistryInitializer` is internal**, and `IProducer.DisconnectAsync` is removed — dispose via `IAsyncDisposable.DisposeAsync` (or rely on DI). + +#### Transport + +- **TLS is on by default.** `SslEnabled = true` (AMQPS port 5671). For local plaintext dev, set `t.SslEnabled = false`; a non-loopback plaintext connection logs a `Warning` you can suppress with `SuppressPlaintextWarning`. +- **Publisher confirms are on by default.** Every publish waits for a broker ack before returning. Benchmark throughput-sensitive paths; configuring `PublisherAcknowledgements=false` together with a finite `PublishTimeout` is now a startup error. +- **`IProducer` body is `ReadOnlyMemory`; headers are `IReadOnlyDictionary?`.** `byte[]` converts implicitly; a `null` body is no longer expressible — use `ReadOnlyMemory.Empty`. +- **External `IConsumer` implementations must add `IsCancelledByBroker`** (default `false`); the bus uses it to flip `IsConsuming` to `false` when the broker has cancelled the consumer (queue deleted, policy expired, mirror promoted). +- **`MessageTypeExchangeName` derives from `Type.FullName`.** Exchanges are named `type.FullName.Replace(".", string.Empty)` — no hash or assembly metadata, matching the deployed C# `master` wire format so v7, master, and Node services share exchanges. Apps upgrading from a hashed-exchange build will see new exchange names on first v7 deploy. +- **Retry and error publishes use `mandatory:true`.** Topology gaps that pre-v7 silently dropped messages now surface as `PublishException` — fix the topology rather than relying on the drop. + +#### Persistence + +- **`IHasCorrelationId` is required for aggregator data types.** Replaces v6's reflection-based discovery. `Message` already implements it; custom non-`Message` data types now fail to compile until they implement it. +- **`IAggregatorPersistor` tightened.** `InsertDataAsync(IHasCorrelationId data, …)`; `GetDataAsync` returns `Task>`. `AggregatorSnapshot.ResolvedMessages` matches. +- **Mongo aggregator `Name` partition value changed** from `typeof(Aggregator).FullName` to `typeof(ConcreteAggregator).FullName`. Existing rows must be renamed before restarting on v7 or they will be invisible and accumulate. +- **Generic saga collection names sanitized** — `+` / backtick / `[` / `]` / `,` in generic-type `FullName` become `_`. Rename existing generic-saga collections with `renameCollection` before deploy. +- **MongoDB.Driver bumped to 3.8.0** (from 2.23.1). The bundled persistor handles `GuidRepresentationMode = V3` and `RenderArgs` transparently; consumers using `MongoDB.Driver` directly should follow the official 2.x→3.x guide. +- **Startup guards on Mongo persistence:** `WriteConcern.Unacknowledged` (w:0) is rejected; conflicting Guid-serializer registrations are rejected; the legacy `(Locked, Time)` timeout index is dropped and `(Time, Locked, LockExpiresAt)` is created. +- **System.Text.Json replaces Newtonsoft.Json** in all shipped packages. Newtonsoft is no longer transitive; add an explicit reference if you relied on transitive flow. The wire format is JSON-equivalent for typical messages but STJ rejects `NaN`/`Infinity` doubles, nesting > 32 levels, trailing commas, and JS-style comments. A `SerializationCompatTests` project enforces v6↔v7 round-trip on every PR. +- **`IMessageSerializer` reduced to four methods**: `Serialize(T, IBufferWriter)`, `Deserialize(ReadOnlyMemory)`, `Deserialize(ReadOnlyMemory, Type)`, and a default `ReadOnlySequence` overload. The `byte[]` / `ReadOnlySpan` overloads are gone. +- **`TimeoutData.Destination` is nullable.** `IKeyValueStore` / `ICacheProvider` swap `Get<>` for `TryGet<>` to distinguish "absent" from "present-with-null". + +#### Streaming + +- **Body type cascades to `ReadOnlyMemory`.** `IMessageBusReadStream.Write` and `IMessageBusWriteStream.WriteAsync` no longer take `(byte[], offset, count)`; pass `buf.AsMemory(0, len)` instead. +- **Streams latch on first transport failure.** A faulted write makes the stream unusable; create a fresh stream to recover. Caps: `MaxStreamSizeBytes`, `MaxActiveStreams`. + +#### Telemetry + +- **No more static telemetry state.** `ServiceConnectActivitySource.Options` / `MessagingSystemAttributes` are gone; instrumentation methods take options + attributes as parameters, so two buses in one process can have independent enrichment. +- **One ActivitySource: `"ServiceConnect.Telemetry.Bus"`** (was three). Per-direction toggles via `EnablePublishTelemetry` / `EnableConsumeTelemetry` / `EnableSendTelemetry`. +- **OTel semconv 1.x messaging attributes.** Spans/metrics emit `messaging.operation.type` (`publish`/`process`) and `messaging.operation.name`; the pre-1.x `messaging.operation` attribute is gone. `messaging.destination.name` reflects the broker exchange/routing key, not the CLR type's `FullName`. Dashboards filtering on the legacy attributes must update. + +### What's new + +#### Bus and pipeline + +- **`OnConsumedSuccessfully` filter stage** — fourth pipeline stage that runs only after a successful handler invocation. The canonical building block for at-most-once side effects and for the dedupe pattern that replaces the removed `MessageDeduplication` package. +- **DI-first builder.** Single `AddServiceConnect` call per `IServiceCollection`; re-entry is rejected. Multi-bus is achieved via separate service collections. Health-check probing for multiple buses is available via `AddServiceConnectBus` / `AddServiceConnectConsumer` / `AddServiceConnectProducer` on `IHealthChecksBuilder`. +- **Configurable caps.** `MaxInflightRequests`, `MaxStreamSizeBytes`, `MaxActiveStreams`, `MaxRoutingSlipHops`, `DisposeTimeout`. +- **Lifecycle flags.** `AllowMissingProducer` (consume-only buses), `DeadLetterUnhandledMessages` (explicit error-queue routing), `StrictReplyValidation` (rejects the cross-bus fallback that a queue-name-aware producer could spoof), `IncludeMachineNameInHeaders` (default `false` to avoid hostname leakage on shared brokers). +- **`IBus.RequestTimeoutAsync(correlationId, delay, ct)`** for scheduling saga timeouts. +- **`IBus.IsCancelledByBroker` / `IBus.IsStopped` / `IConsumer.IsStopped` / `IProducer.HasAttemptedConnection` / `IProducer.IsHealthy` / `IProducer.GetHealthSnapshot()`** for health-check semantics. +- **`RequestSendCancelledException`** (inherits `OperationCanceledException`) distinguishes send-pipeline cancel from caller-token cancel and from timeout. +- **Native streaming.** `bus.CreateStream(endpoint)` → `IMessageBusWriteStream` with zero-copy write path; `IStreamHandler.ExecuteAsync(IMessageBusReadStream stream, ...)`. +- **Polymorphic dispatch with type-hierarchy walking.** New processor chain (`HandlerProcessor`, `ReplyProcessor`, `ProcessManagerProcessor`, `AggregatorProcessor`, `StreamProcessor`) backed by pluggable registries — no more per-message reflection. + +#### Transport + +- **`PublishOptions.RoutingKey`** is honoured by the RabbitMQ transport (with `IProducer.SupportsRoutingKey` as a capability flag for third-party transports). +- **`RabbitMqOptions.MaxPublishWaitTime`** caps the wall-clock budget for publish-confirm retries. +- **`MessageId` survives publish retries.** Constructed once per public call and captured into the retry closure — consumer-side dedupe under retries is now meaningful. +- **`TimeoutException` is retriable** under the at-least-once publish contract: a publish-confirm timeout drives a channel reset and re-submits the same `BasicProperties`. + +#### Persistence + +- **`IProcessManagerTypeRegistry`** (in `ServiceConnect.Interfaces`) enumerates registered saga data types. The Mongo persistor uses it to pre-create `CorrelationId` unique indexes via a hosted service at startup — closes the cross-process startup race. +- **`IIdentified`** (`Guid Id` getter) on `MemoryData` and `MongoDbData` for stable identity across stores. +- **`IAggregatorPersistor.CountResolvedAsync`** and **`ReleaseSnapshotAsync`** — additive default-interface-method members for cheap typed-count gating and lease release. + +#### Observability and operations + +- **`ServiceConnect.HealthChecks`** package with `BusConsumingHealthCheck`, `ConsumerConnectionHealthCheck`, and `ProducerConnectionHealthCheck`. Configurable `recoveryGraceWindow` (default 30s) absorbs transient broker flap; permanent broker-cancel bypasses the grace. +- **Operator-grade metrics via `System.Diagnostics.Metrics`.** Four OTel `messaging.*` instruments (publish/process duration histograms + published/consumed counters) plus ServiceConnect counters (`retry.attempts`, `retry.drops`, `publish.confirm_timeouts`, `audit.drops`, `outgoing_filters.blocked`) and an in-flight UpDownCounter. +- **W3C `traceparent`/`tracestate`** injected on outgoing messages (already extracted on consume — end-to-end distributed tracing works out of the box). +- **`MaxTagValueLength`** (default 256) bounds user-controlled string tags for cardinality safety. **`ExceptionMessageSanitiser`** redacts PII in exception messages before they reach activity status and `exception.message` event tags. +- **Connection-lifecycle Info logs** (`ConnectionOpened` / `ProducerConnectionOpened` / `ConnectionRecovered` / `ConnectionLost`) carry the connection's `MessageId`. + +### Hardening + +The bulk of the v7 work landed under hardening: trust boundaries on inbound headers, caps against amplification, persistence-lease correctness under cancellation and reaper paths, and a long tail of races in lifecycle, recovery, dispatch, and disposal. + +- **Server-authoritative wire headers.** `DestinationAddress`, `MessageId`, `MessageType`, `TypeName`, and `FullTypeName` are stamped on outbound; reply routing resolves through registered handlers only (no `Type.GetType` on caller-supplied wire headers). `StrictReplyValidation` opts into the tightest mode. +- **Cardinality and DoS caps.** Message-size, header-count, header-size, routing-slip-hop, active-stream, in-flight-request, packet-number, and stream-size caps. Recursive byte budget on AMQP table/array nested header values. Gzip magic-byte check + decompression size cap. +- **Newtonsoft → STJ removes the `TypeNameHandling.Auto` deserialisation-gadget surface** in `DeepClone` and elsewhere. +- **Audit-publish failures no longer trigger redelivery.** Audit is a success-side effect; malformed `RetryCount` headers route to the error queue rather than silently resetting the retry budget; unresolved message types are terminal. +- **Bus lifecycle is single-use and DI-owned.** `Bus` no longer disposes transport singletons; `StartConsumingAsync` after stop is latched; `DisposeAsync` is bounded by `DisposeTimeout`; the lifecycle semaphore won't deadlock on shutdown. +- **Mongo timeout-store correctness.** Candidate ordering tie-broken by `Id` (eliminates starvation under saturation); cancellation between `UpdateMany` and `FindAsync` performs best-effort lease cleanup; `$facet` aggregation removes the second round-trip. +- **Aggregator correctness.** `RemoveDataAsync` distinguishes `KeyNotFoundException` (structural) from `ConcurrencyException` (race); batch-size flushes gate on resolved-count (no more spinning on unresolved-only batches); `OnTimerFired` registers-before-rechecks to close a disposal-snapshot race. +- **In-memory persistence** no longer drops state at 2 days; deep-clones on read; types are `IDisposable` so DI rebuilds don't leak timers. +- **Consumer-host recovery.** Auto-recovery refreshes the consumer tag via `ConsumerTagChangeAfterRecoveryAsync`; stale `UnregisteredAsync` events whose tag has been superseded by recovery are ignored; queues are bound before `BasicConsume` (per-channel serialisation contract). +- **Telemetry correctness.** Enricher `OperationCanceledException` no longer leaks an activity; body copy is gated on listener presence; tag values are length-bounded; exception messages are sanitised. +- **Saga / process-manager.** Poison rows wrap to `PersistenceException` and route to error queue rather than NACK-looping; saga predicates handle explicit-interface property impls (Mongo + InMemory); `ProcessManagerHandlerRegistry` dedupes by `HandlerType` to handle dual-interface sagas and repeat-assembly scans. + +### Removed + +- **`ServiceConnect.Filters.MessageDeduplication` package** — the old implementation silently dropped legitimate broker redeliveries and shared in-memory state via a static field. No replacement; use the new `OnConsumedSuccessfully` stage for per-consumer dedupe. See the `CustomFilterAndMiddleware` example. +- **`ServiceConnect.Persistence.SqlServer` and `ServiceConnect.Persistence.Redis`** — no replacement. +- **Static `Bus`** — use `AddServiceConnect(...)` from DI. +- **`IProducer.DisconnectAsync`** — dispose via `IAsyncDisposable.DisposeAsync`. +- **`SendOptions.EndPoints` and `RequestOptions.EndPoints`** — use `SendToManyAsync` / `PublishRequestAsync`. +- **`SendEventArgs.EndPoints` (plural)** — multi-endpoint sends raise one event per destination; correlate by `CorrelationId`. +- **`IProcessMessageMiddleware`** — superseded by `IMessageProcessingMiddleware`. +- **`Get` on `IKeyValueStore` / `ICacheProvider`** — use `TryGet`. +- **`byte[]` / `ReadOnlySpan` overloads on `IMessageSerializer`** — use the `ROM` / `ROSequence` shape. +- **Pre-1.x `messaging.operation` OTel attribute** — replaced by `messaging.operation.type` + `messaging.operation.name`. +- **Newtonsoft.Json** from all production packages. + +### Migration + +For application code, the upgrade path is roughly: + +1. Replace static `Bus.Initialize(...)` with `AddServiceConnect(builder => ...)` in your composition root; resolve `IBus` from DI. +2. Convert handlers to `HandleAsync(T message, IConsumeContext ctx, CancellationToken ct)`; drop any settable `Context`/`Stream` property usage. +3. Replace `SendOptions.EndPoints` and `RequestOptions.EndPoints` usage with `SendToManyAsync` / `PublishRequestAsync` / `SendRequestMultiAsync`. +4. Convert pipeline registration to the typed `AddOutgoingFilter` / `AddBeforeConsumingFilter` / `AddOnConsumedSuccessfullyFilter` / `AddAfterConsumingFilter` / `AddSendMessageMiddleware` / `AddMessageProcessingMiddleware` builders. +5. Set `t.SslEnabled = false` explicitly for plaintext local dev; keep TLS on for everything else. +6. If you ship custom non-`Message` aggregator data, implement `IHasCorrelationId` on it. +7. If you query `Aggregator`-named partitions or generic-saga collections directly, run the rename scripts before deploying. +8. If your dashboards filter on the old `messaging.operation` attribute or on `messaging.destination.name = ""`, update them. + +For full per-commit context, see the v7 release on GitHub and — once the `v7.0.0` tag is pushed — the `git log master..v7.0.0` range. + +## Source and tags + +Every release corresponds to a git tag. Browse the source at a specific version by visiting `https://github.com/R-Suite/ServiceConnect-CSharp/tree/`. The `master` branch is the development head; tagged releases are the frozen points that produced the NuGet artifacts. diff --git a/website/src/content/docs/samples.mdx b/website/src/content/docs/samples.mdx new file mode 100644 index 000000000..60cf01c8e --- /dev/null +++ b/website/src/content/docs/samples.mdx @@ -0,0 +1,148 @@ +--- +title: Samples +description: Fifteen runnable console applications covering every messaging pattern and the telemetry stack. Clone, start the docker-compose stack, and watch them work. +--- + +Every messaging pattern in the [Learn](/ServiceConnect-CSharp/learn/getting-started/) section has a matching runnable example in the [`examples/`](https://github.com/R-Suite/ServiceConnect-CSharp/tree/master/examples) folder of the repository. They are full console apps: no stubs, no mocks, real RabbitMQ (and MongoDB where persistence is needed) running in Docker. + +## Prerequisites + +Every sample expects a RabbitMQ broker and — for the persistence-backed ones — a MongoDB instance. One docker-compose file starts them both: + +```bash +docker compose -f examples/docker-compose.yml up -d +``` + +Each sample's `run.sh` (or `run.ps1` on Windows) launches the sender and consumer(s) in the right order with sensible pauses between them. If you want to see the individual invocations, the sample's README lists the raw `dotnet run` commands. + +## Catalog + +Each row below has a brief description, the pattern it illustrates, and a link to the source. + +### Point-to-Point + +Send one command from one sender to one consumer queue — the simplest shape. + +- Pattern: [Point-to-Point](/ServiceConnect-CSharp/learn/messaging-patterns/point-to-point/) +- Source: [`examples/PointToPoint`](https://github.com/R-Suite/ServiceConnect-CSharp/tree/master/examples/PointToPoint) + +### Pub/Sub + +Publish one event; several independent subscribers each get their own copy. + +- Pattern: [Pub/Sub](/ServiceConnect-CSharp/learn/messaging-patterns/pub-sub/) +- Source: [`examples/PublishSubscribe`](https://github.com/R-Suite/ServiceConnect-CSharp/tree/master/examples/PublishSubscribe) + +### Request/Reply + +Send a request, wait for a reply — async under the hood, blocking at the call site. + +- Pattern: [Request/Reply](/ServiceConnect-CSharp/learn/messaging-patterns/request-reply/) +- Source: [`examples/RequestReply`](https://github.com/R-Suite/ServiceConnect-CSharp/tree/master/examples/RequestReply) + +### Competing Consumers + +Two workers share a queue; each message goes to one of them — horizontal throughput. + +- Pattern: [Competing Consumers](/ServiceConnect-CSharp/learn/messaging-patterns/competing-consumers/) +- Source: [`examples/CompetingConsumers`](https://github.com/R-Suite/ServiceConnect-CSharp/tree/master/examples/CompetingConsumers) + +### Content-Based Routing + +Publish split-by-type events; different consumers bind to the types they care about. + +- Pattern: [Content-Based Routing](/ServiceConnect-CSharp/learn/messaging-patterns/content-based-routing/) +- Source: [`examples/ContentBasedRouting`](https://github.com/R-Suite/ServiceConnect-CSharp/tree/master/examples/ContentBasedRouting) + +### Polymorphic Messages + +Publish derived events; a base-type handler catches the whole category while specific handlers catch one type. + +- Pattern: [Polymorphic Messages](/ServiceConnect-CSharp/learn/messaging-patterns/polymorphic-messages/) +- Source: [`examples/PolymorphicMessages`](https://github.com/R-Suite/ServiceConnect-CSharp/tree/master/examples/PolymorphicMessages) + +### Routing Slip + +Ordered multi-stage pipeline: inventory → billing → shipping. Stages don't know each other. + +- Pattern: [Routing Slip](/ServiceConnect-CSharp/learn/messaging-patterns/routing-slip/) +- Source: [`examples/RoutingSlip`](https://github.com/R-Suite/ServiceConnect-CSharp/tree/master/examples/RoutingSlip) + +### Scatter-Gather + +Send the same request to several responders in parallel; collect replies into one list. + +- Pattern: [Scatter-Gather](/ServiceConnect-CSharp/learn/messaging-patterns/scatter-gather/) +- Source: [`examples/ScatterGather`](https://github.com/R-Suite/ServiceConnect-CSharp/tree/master/examples/ScatterGather) + +### Aggregator + +Buffer telemetry slices and flush by size or by time — batching as the unit of work. + +- Pattern: [Aggregator](/ServiceConnect-CSharp/learn/messaging-patterns/aggregator/) +- Source: [`examples/Aggregator`](https://github.com/R-Suite/ServiceConnect-CSharp/tree/master/examples/Aggregator) + +### Process Manager + +A saga coordinating order submission, inventory reservation, and payment across three services — state persisted in MongoDB. + +- Pattern: [Process Manager](/ServiceConnect-CSharp/learn/messaging-patterns/process-manager/) +- Source: [`examples/ProcessManager`](https://github.com/R-Suite/ServiceConnect-CSharp/tree/master/examples/ProcessManager) + +### Filters + +Stamp an `X-Trace-Id` header on every outgoing message — filters as the cross-cutting hook. + +- Pattern: [Filters](/ServiceConnect-CSharp/learn/messaging-patterns/filters/) +- Source: [`examples/Filters`](https://github.com/R-Suite/ServiceConnect-CSharp/tree/master/examples/Filters) + +### CustomFilterAndMiddleware + +Runnable end-to-end demo of how to build your own filter and middleware against the public extension points. The worked scenario is broker-redelivery deduplication using the `OnConsumedSuccessfully` pipeline stage. + +[`IFilter`](/ServiceConnect-CSharp/reference/filters/ifilter/) · [`IMessageProcessingMiddleware`](/ServiceConnect-CSharp/reference/filters/imessageprocessingmiddleware/) · [`examples/CustomFilterAndMiddleware`](https://github.com/R-Suite/ServiceConnect-CSharp/tree/master/examples/CustomFilterAndMiddleware) + +### Streaming + +Chunk a payload too large for one message, reassembled on the receiver, one handler invocation at the end. + +- Pattern: [Streaming](/ServiceConnect-CSharp/learn/messaging-patterns/streaming/) +- Source: [`examples/Streaming`](https://github.com/R-Suite/ServiceConnect-CSharp/tree/master/examples/Streaming) + +### Telemetry + +End-to-end OpenTelemetry tracing across publish → consume, demonstrating +W3C trace-context propagation through the broker. Three processes share +one TraceId; each subscriber's span is a direct child of the publisher's. + +- Tracing reference: [Observability — Tracing](/ServiceConnect-CSharp/learn/operations/observability/#tracing-opentelemetry) +- Source: [`examples/Telemetry`](https://github.com/R-Suite/ServiceConnect-CSharp/tree/master/examples/Telemetry) + +### StressHarness + +Concurrency / soak / throughput harness over every pattern. Surfaces cross-tenant routing leaks, deadlocks, memory growth, and lifecycle races against two `Bus` instances. + +- Source: [`examples/StressHarness`](https://github.com/R-Suite/ServiceConnect-CSharp/tree/master/examples/StressHarness) + +## Reading the output + +Each sample's processes print status lines in a uniform shape: + +- `READY:` — the consumer is listening. +- `SUCCESS::` — a message was handled. + +So a Point-to-Point run produces: + +``` +READY:point-to-point-consumer +SUCCESS:point-to-point-sender:sent work-001 +SUCCESS:point-to-point-consumer:processed work-001 +``` + +That shape is deliberately minimal — enough to follow the sequence across terminals, not so much that it obscures the messaging itself. If you want more, each sample is just a few hundred lines of C#; read the source. + +## If you get stuck + +- **Docker services not up:** `docker compose -f examples/docker-compose.yml ps` should show RabbitMQ (and MongoDB for the persistence-backed samples) in a healthy state. +- **Handlers don't fire:** check the RabbitMQ management UI at `http://localhost:15672` (guest/guest). Each example's README lists the queue names it declares. +- **MongoDB-backed samples fail to start:** the Mongo container takes a few seconds longer than RabbitMQ. The samples' `DependencyWaiter` handles this; if you're running `dotnet run` manually, start the consumer and wait a moment before the sender. diff --git a/website/src/overrides/Footer.astro b/website/src/overrides/Footer.astro new file mode 100644 index 000000000..9e15bdde3 --- /dev/null +++ b/website/src/overrides/Footer.astro @@ -0,0 +1,57 @@ +--- +import Default from '@astrojs/starlight/components/Footer.astro'; + +const base = import.meta.env.BASE_URL.replace(/\/$/, ''); +--- + + + + + + diff --git a/website/src/overrides/ThemeProvider.astro b/website/src/overrides/ThemeProvider.astro new file mode 100644 index 000000000..df34945da --- /dev/null +++ b/website/src/overrides/ThemeProvider.astro @@ -0,0 +1,47 @@ +--- +import { Icon } from '@astrojs/starlight/components'; +--- + +{/* Forks Starlight's ThemeProvider so first-time visitors land in dark mode + instead of inheriting their OS preference. localStorage semantics from + Starlight's ThemeSelect: missing key (null) = never visited, stored '' + = explicit 'auto', stored 'light'/'dark' = explicit pick. We default + only the first case; 'auto' still follows the OS. Inlined to avoid FOUC. */} + + + diff --git a/website/src/styles/brand.css b/website/src/styles/brand.css new file mode 100644 index 000000000..b1d411595 --- /dev/null +++ b/website/src/styles/brand.css @@ -0,0 +1,31 @@ +/* ServiceConnect brand palette — overrides Starlight's accent tokens. + * Values sourced from Tailwind's teal scale so light and dark modes stay in + * perceptual lockstep. See docs/superpowers/specs/2026-04-19-serviceconnect-docs-site-design.md. */ + +:root { + --sl-color-accent-low: #ccfbf1; /* teal-100 — tinted backgrounds */ + --sl-color-accent: #0d9488; /* teal-600 — primary CTA / links */ + --sl-color-accent-high: #042f2e; /* teal-950 — text on accent-low */ +} + +:root[data-theme='dark'] { + --sl-color-accent-low: #042f2e; /* teal-950 — tinted dark backgrounds */ + --sl-color-accent: #14b8a6; /* teal-500 — primary in dark */ + --sl-color-accent-high: #99f6e4; /* teal-200 — text on accent-low */ +} + +/* Brand-specific homepage tweaks: tighten the splash hero spacing. */ +.hero { + padding-block: 3rem; +} + +/* Widen the main content column — default 45rem cuts off API signatures. */ +:root { + --sl-content-width: 60rem; +} + +/* Header site title: force white against the dark header background. + * Starlight defaults to the accent color, which clashes with the teal logo. */ +.site-title { + color: #ffffff; +} diff --git a/website/tsconfig.json b/website/tsconfig.json new file mode 100644 index 000000000..8bf91d3bb --- /dev/null +++ b/website/tsconfig.json @@ -0,0 +1,5 @@ +{ + "extends": "astro/tsconfigs/strict", + "include": [".astro/types.d.ts", "**/*"], + "exclude": ["dist"] +}